阅读说明：本技术 线圈和使用该线圈的马达 (Coil and the motor for using the coil ) 是由 菱田光起 吉川祐一 山内弘和 额田庆一郎 于 2018-03-28 设计创作，主要内容包括：线圈具有匝列,所述匝列由将截面呈多边形形状的导线卷绕成螺旋状而在从下向上的方向上层叠而成的第1匝～第n匝(n为3以上的整数)构成,其中,在第i匝(i为整数,1≤i≤n)的上表面和下表面中的任一者局部地配置有绝缘构件。(Coil is arranged with circle, the circle arranges spiral by the Wire-wound for being in polygonal shape for section and the 1st circle~n-th circle made of stacking (integer that n is 3 or more) is constituted on direction from bottom to top, wherein, insulating component is locally configured in any one of upper and lower surfaces of the i-th circle (i is integer, 1≤i≤n).)

1. a kind of coil, which arranges with circle, and the circle is arranged by section is spiral in the Wire-wound of polygonal shape And the 1st circle~n-th circle made of being laminated on direction from bottom to top is constituted, the integer that n is 3 or more, wherein

It is configured with insulating component in any one of upper and lower surfaces of the i-th circle, i is integer, 1≤i≤n.

2. coil according to claim 1, wherein

The insulating component will remain scheduled interval between i-th circle and the circle adjacent with i-th circle.

3. coil according to claim 1, wherein

Insulating layer is equipped on the surface of the conducting wire.

4. coil according to claim 1, wherein

The insulating component includes the multiple insulating components configured along the coiling direction of i-th circle,

The multiple insulating component configures separated from each other on the coiling direction.

5. coil according to claim 1, wherein

The insulating component along i-th circle coiling direction continuously linear extension.

6. coil according to claim 1, wherein

In the opposite face opposite with i-th circle of (i-1) circle and the phase opposite with (i-1) circle of i-th circle At least one of opposite is equipped with the positioning region for the insulating component to be positioned and kept.

7. coil according to claim 1, wherein

The insulating component also includes

Sandwich portion, be clipped between i-th circle and the circle adjacent with i-th circle respectively and jth circle and with the jth circle Between adjacent circle, j is integer, 1≤j≤n and i ≠ j；And

Linking part links up in the portion of sandwiching in the peripheral side of the conducting wire to each other.

8. coil according to claim 7, wherein

The portion of sandwiching is clipped in respectively between the adjacent whole circle of the conducting wire,

The portion of sandwiching described in whole is interconnected by the linking part in the peripheral side of the whole circle.

9. coil according to claim 7, wherein

The insulating component is formed by 1 insulating paper,

The part of the cutting of the insulating paper is bent and is formed and described sandwiches portion.

10. coil according to claim 1, wherein

The Wire-wound of i-th circle is in a rectangular shape,

The width of the upper surface side of the conducting wire of i-th circle is being set as W1, by the following table of the conducting wire of i-th circle The width of surface side is set as W2, and the thickness of the inner circumferential side of the conducting wire of i-th circle is set as H1, will be described in i-th circle The thickness of the peripheral side of conducting wire is set as H2, by the length of the inner circumferential side of the conducting wire on one side of the rectangular shape of i-th circle In the case where being set as L, following relationship is set up:

4<L/(W1+W2+H1+H2)<22.3。

11. coil according to claim 1, wherein

The insulating component is formed by multiple insulating papers.

12. the coil after a kind of molding, wherein

Coil after the molding is obtained from moulding to the coil described in claim 11.

13. the coil after molding according to claim 12, wherein

Coil after the molding has the cooling window of coil.

14. the coil after molding according to claim 12, wherein

Coil after the molding has the line portion of not formed resin.

15. coil according to claim 1, wherein

The insulating component is formed by 1 insulating paper.

16. the coil after a kind of molding, wherein

Coil after the molding is obtained from moulding to the coil described in claim 15.

17. the coil after molding according to claim 16, wherein

Coil after the molding has the cooling window of coil.

18. the coil after molding according to claim 16, wherein

Coil after the molding has the line portion of not formed resin.

19. a kind of motor, wherein

The motor includes stator, which includes

Stator core；

Tooth, it is prominent from the stator core；And

Coil described in claim 1 is wound in the tooth.

Technical field

This disclosure relates to wind section in coil made of the conducting wire of polygonal shape and using the motor of the coil.

Background technique

In recent years, industry, it is vehicle-mounted on the way, the demand of motor is continuously improved.Wherein, it is desirable that improve motor efficiency, Reduce cost.

As one of the method for efficiency for improving motor, it is known that improve the copper factor for the coil being configured in the slot of stator. By improving the copper factor of coil, it is able to suppress in drive motor because of the loss caused by electric current of coil flowing.

As the method for the copper factor for improving coil, the vertically casting of the copper material of rectangular in cross-section shape will be used by proposing The structure being configured in slot (referring for example to patent document 1).

By using such coil disclosed in patent document 1, the contact area between the adjacent circle of coil becomes larger. As a result, compared with having used such as the coil of the conducting wire with circular section, the radiating efficiency of coil is improved.Another party Face, since the contact area between circle becomes larger, cover the surface of the conducting wire of coil insulating coating damage or removing and can not Make to become larger a possibility that insulation between adjacent circle.

Summary of the invention

The disclosure is completed in view of this aspect, and its object is to realize the insulation being able to maintain that between adjacent circle Coil of the section in polygonal shape and the motor using the coil.

In order to achieve the above purpose, the coil of the disclosure is arranged with circle, and the circle is arranged by being in polygonal shape by section Wire-wound is spiral and the 1st circle~n-th circle (n be 3 or more integer) made of being laminated on direction from bottom to top It constitutes, wherein be configured with insulating component in any one of upper and lower surfaces of the i-th circle (i is integer, 1≤i≤n).

According to this structure, it can be ensured that the insulation between the adjacent circle of coil.

Preferably, insulating component will remain scheduled interval between the i-th circle and the circle adjacent with the i-th circle, preferably exist The surface of conducting wire is equipped with insulating layer.

According to this structure, it will can reliably insulate between the adjacent circle of coil.

Preferably, insulating component includes the multiple insulating components configured along the coiling direction of the i-th circle, multiple insulation structures Part configures separated from each other in a roll-up direction.

According to this structure, it can be held using fixture etc. between the adjacent circle of coil, the processing transfiguration of coil is easy.

It is also possible to insulating component along the coiling direction continuously linear extension of the i-th circle.

According to this structure, the interval between the adjacent circle of coil can be stably kept, the adjacent of coil can be made It more reliably insulate between circle.

Preferably, in the opposite face opposite with the i-th circle of (i-1) circle and the phase opposite with (i-1) circle of the i-th circle At least one of opposite is equipped with the positioning region for being positioned and being kept to insulating component.

According to this structure, insulating component can be easily configured to each circle of coil.

Preferably, insulating component also includes the portion of sandwiching, be clipped between the i-th circle and the circle adjacent with the i-th circle respectively with And between jth circle and the circle adjacent with jth circle (j is integer, 1≤j≤n and i ≠ j)；And linking part, in the periphery of conducting wire Side links up in the portion of sandwiching to each other.

According to this structure, insulating component can be easily installed at coil.

It is also possible to the portion of sandwiching to be respectively interposed between adjacent whole circles of conducting wire, linking part is in the peripheral side of whole circles All portions of sandwiching are interconnected.

Preferably, insulating component is formed by 1 insulating paper, is bent to the part of the cutting of insulating paper and forms folder Enter portion.

According to this structure, when forming insulating component, without using mold etc., seek to reduce manufacturing cost.

Preferably, the Wire-wound of the i-th circle is in a rectangular shape, and following relationship is set up:

4<L/(W1+W2+H1+H2)<22.3。

Here, W1 is the width of the upper surface side of the conducting wire of the i-th circle, W2 is the width of the lower face side of the conducting wire of the i-th circle, H1 is the thickness of the inner circumferential side of the conducting wire of the i-th circle, and H2 is the thickness of the peripheral side of the conducting wire of the i-th circle, and L is the rectangle shape of the i-th circle The length of the inner circumferential side of the conducting wire on one side of shape.

According to this structure, insulating component is reliably held between the adjacent circle of coil, can make to insulate between circle.

In addition, motor disclosed herein includes stator, which has stator core, from stator core tooth outstanding and It is wound in the above-mentioned coil of tooth.

According to this structure, it can be ensured that the insulation in coil.Therefore, the pressure resistance of motor can be chronically maintained, motor Reliability improves.

According to the disclosure, can make reliably to insulate between each circle in coil.In addition, can be realized the horse of high reliability It reaches.

Detailed description of the invention

Figure 1A is the top view for indicating the motor of embodiment 1.

Figure 1B is the side view for indicating the motor of embodiment 1.

Fig. 1 C is the cross-sectional view at the 1C-1C line of Figure 1B.

Fig. 2 is the perspective view for indicating the coil of embodiment 1.

Fig. 3 is the top view for indicating the 3rd circle of coil of embodiment 1.

Fig. 4 is the figure for illustrating the forming method of the insulating component of coil of embodiment 1.

Fig. 5 is the amplification stereogram for indicating the region surrounded in Fig. 3 by single dotted broken line.

Fig. 6 A is the top view for indicating the 3rd circle of coil of variation 1.

Fig. 6 B is the top view for indicating another 3rd circle of coil of variation 1.

Fig. 7 is the perspective view for indicating the coil of embodiment 2.

Fig. 8 is the top view for indicating the 3rd circle of coil of embodiment 2.

Fig. 9 A is the top view of the 3rd circle of the coil of variation 2.

Fig. 9 B is another top view of the 3rd circle of the coil of variation 2.

Figure 10 is the perspective view for indicating the coil of embodiment 3.

Figure 11 is the top view for indicating the 3rd circle of coil of embodiment 3.

Figure 12 A is the top view for indicating the 3rd circle of coil of variation 3.

Figure 12 B is the top view for indicating another 3rd circle of coil of variation 3.

Figure 12 C is the top view for indicating another 3rd circle of coil of variation 3.

Figure 13 is the perspective view for indicating the coil of variation 4.

Figure 14 is the perspective view for indicating the coil of variation 5.

Figure 15 A is the perspective view for indicating the coil of embodiment 4.

Figure 15 B is the perspective view for indicating the insulating paper of embodiment 4.

Figure 15 C is the perspective view for indicating the insulating paper of embodiment 4.

Figure 15 D is the perspective view for indicating the coil of embodiment 4.

Figure 16 is the perspective view for indicating another insulating paper of embodiment 4.

Figure 17 is the perspective view of the coil after the molding for indicating embodiment 4.

Figure 18 A is the perspective view for indicating the coil of embodiment 5.

Figure 18 B is the perspective view of the coil after the molding for indicating embodiment 5.

Figure 19 is the perspective view of the coil after the molding for indicating embodiment 6.

Figure 20 is the perspective view of the coil after the molding for indicating embodiment 7.

Figure 21 is the perspective view of the coil after the molding for indicating embodiment 8.

Figure 22 is the perspective view of the coil after another molding for indicating embodiment 8.

Figure 23 is the perspective view of the coil after the another molding for indicating embodiment 8.

Specific embodiment

Hereinafter, explaining embodiment of the present disclosure in detail based on attached drawing.Preferred embodiment below illustrates this It is only illustrated in matter, is not intended to be limited to that the disclosure, it is using object or its purposes completely.

(embodiment 1)

[motor structure]

Figure 1A is the top view for indicating the motor 1 of embodiment 1.Figure 1B is the side view for indicating the motor 1 of embodiment 1 Figure.Fig. 1 C is the cross-sectional view at the 1C-1C line of Figure 1B.Wherein, in any attached drawing, casing not shown etc..Motor 1 is in casing The inside of (not shown) has axis 2, rotor 3, stator 4, coil U11~U41, V12~V42, W11~W41 and busbar 51 ~54.

Here, the length direction of axis 2 (direction vertical with the paper of Figure 1A) is known as Z-direction sometimes, by with axis 2 The orthogonal direction of length direction (direction parallel with the paper of Figure 1A) is known as X-direction, Y direction.X-direction and Y-axis side To orthogonal.

" integration " refers not only to multiple parts and connects, also refers to by altogether in such a way that bolt fastening or riveting etc. are mechanical 1 object obtained from part is electrically connected by the material binds such as valence link, ionic bond, metallic bond or part are entirely through melting Deng and the state of 1 object obtained from carrying out material combination and being electrically connected.

Axis 2 is in the internal hollow portion 2a for having and extending along Z-direction.Multiple through hole 2b are equipped in the side of axis 2.It is hollow Portion 2a is the access of the refrigerant C for cooling down the inside of motor 1.Refrigerant C flows in hollow portion 2a along Z-direction, It is circulated in the inside of motor 1.In addition, a part of the refrigerant C flowed in hollow portion 2a is flowed from multiple through hole 2b Out, it is also flowed from the center laterally outside of motor 1, namely from rotor 3 towards the direction where stator 4, cooling rotor 3 and fixed Son 4.

The periphery of rotor 3 and axis 2 is set to the periphery of the axis 2 in contact.Rotor 3 includes and N pole, S pole opposite with stator 4 The magnet 31 being alternately arranged along the peripheral direction of axis 2.In the present embodiment, it as magnet 31 used in rotor 3, uses Neodymium magnet, but for the material and shape and material of magnet 31, it can be suitably changed according to the output etc. of motor.

Stator 4 has stator core 41 substantially annular in shape, is equally spaced along the inner circumferential of stator core 41 Multiple teeth 42 and the slot 43 that is respectively arranged between tooth 42.When from Z-direction, stator 4 with rotor 3 to separate centainly The separated mode in compartment of terrain is configured at the outside of rotor 3.

Such as punch press process is carried out to form stator core 41 after by containing the stacking of the electromagnetic steel plate of silicon etc..

In the present embodiment, the number of magnetic poles of rotor 3 is total 10 poles, wherein the N opposite with stator 4 extremely 5, the pole S It is 5.The quantity of slot 43 is 12.However, be not particularly limited for the quantity of the number of magnetic poles of rotor 3 and slot 43, It can also be using the combination of other number of magnetic poles and slot number.

Stator 4 has 12 coil U11~U41, V12~V42, W11~W41.Coil U11~U41, V12~V42, W11 Each coil of~W41 is installed on corresponding tooth 42, is configured in corresponding slot 43 when from Z-direction.That is, line Enclosing U11~U41, V12~V42, W11~W41 becomes concentratred winding relative to tooth 42.Also, coil U11~U41 and busbar 51 unified collocations, coil V12~V42 and 52 unified collocation of busbar, coil W11~W41 is integrated with busbar 53 to be matched It sets.

Herein, indicate each phase of first textual representation motor 1 in appended drawing reference UPQ, VPQ, WPQ of coil (at this It is U phase, V phase, W phase in the case where embodiment).Second textual representation putting in order with the coil in phase.Third text Word indicates the coiling direction of coil, and in the present embodiment, 1 is that clockwise, 2 be counterclockwise.Thus, coil U11 Indicate putting in order as the 1st coil for U phase, and coiling direction is clockwise.Coil V42 indicates that the arrangement of V phase is suitable The coil that sequence is the 4th, and coiling direction is counterclockwise.In addition, " clockwise " refers to that the center from motor 1 is viewed as the right side Rotation, it is left-handed that " counterclockwise " refers to that the center from motor 1 is viewed as.

Strictly speaking, coil U11, U41 is the coil of U phase, and coil U22, U32 are the U-bar phase (direction in the magnetic field of generation It is opposite with the coil of U phase) coil.However, in the following description, as long as no particularly pointing out, being then referred to as the line of U phase Circle.Coil V12~V42 and coil W11~W41 are also the same, are referred to as the coil of V phase, the coil of W phase respectively.

[coil construction]

Fig. 2 is the perspective view for indicating the coil 5 of embodiment 1.Fig. 3 is the 3rd circle for indicating the coil 5 of embodiment 1 Top view.In addition, for ease of description, in Fig. 3, for the circle illustration omitted in addition to the 3rd circle of coil 5.Afterwards In explanation, the 1st circle will be set as from the tipping overwrap of lead division 5c to the part of lower section of the position equipped with lead division 5d, will after 1 week part of every winding be successively set as the 2nd circle~the 5th circle.The starting point of each circle can arbitrarily determine.Coil 5 is equipped with the 1st That side of circle is known as "lower", that side for being equipped with the 5th circle is known as "upper".Coil 5 is applied to the motor 1 shown in Fig. 1 C Coil U11~U41, the V12~V42, W11~W41 of the installation of tooth 42.

Coil 5 has the conducting wire 5a of winding, insulating coating 5b (insulating layer), lead division 5c, 5d, each circle set on coil 5 Between insulating component 6.Insulating coating 5b is set to the surface of conducting wire 5a.Lead division 5c, 5d divide from the 1st circle of coil 5 and the 5th circle Do not extend to the peripheral side of coil 5.Insulating component 6 is set between the adjacent circle of coil 5.The 2nd circle~the 5th circle of coil 5 exists In a rectangular shape, including 4 coil sides are wound when vertical view.

Conducting wire 5a is the wire rod formed by conductive member that section is in quadrangle form.Conducting wire 5a is in the shape of a spiral with single laminate roll Around 5 circles, the circle column being laminated along the vertical direction are formed.Conducting wire 5a is for example by copper, aluminium, zinc, magnesium, brass, iron or SUS (Steel Use Stainless stainless steel) etc. formed.

Insulating coating 5b will insulate coil 5 and external component, stator core 41 and tooth 42 such as shown in Fig. 1 C.Absolutely Edge overlay film 5b is set to the whole surface of conducting wire 5a, to insulate between the adjacent circle by coil 5.Insulating coating 5b with a thickness of Tens μm or so, for example, 20 μm~50 μm of range.Insulating coating 5b is for example formed by enamel paint or resin etc..

Lead division 5c, 5d are a part of conducting wire 5a.Lead division 5c, 5d in order to receive from external electric current supply or Person extends to the peripheral side of coil 5 to externally supplying electric current.Lead division 5c, 5d in order to external component, such as Figure 1A~ The connection of any one of busbar 51~54 shown in Fig. 1 C, and eliminate insulating coating 5b.It does not need in lead division 5c, 5d Whole region removes insulating coating 5b, for example, only by the insulating coating of part needed for the connection between busbar 51~54 5b removal.

Recess portion 5e is set to the upper surface of each circle of coil 5.Recess portion 5e is each circle that insulating component 6 is configured to coil 5 Positioning region used in positioning when upper surface.In addition, for ease of description, illustrating recess portion 5e, but actually exist in Fig. 2 Recess portion 5e is equipped with insulating component 6.

Insulating component 6 will remain scheduled interval between the adjacent circle of coil 5.Insulating component 6 makes the adjacent of coil 5 Circle between insulate.Insulating component 6 is formed such as polyimide resin or polyamide.As shown in Figures 2 and 3, Insulating component 6 is in substantial circle when looking down.The height that the upper surface of each circle of the slave coil 5 of insulating component 6 is counted is Several hundred μm or so, in the range of for example, 100 μm~1mm.

Although not shown, but in the 1st circle~the 5th circle upper surface of coil 5 along the coiling direction of each circle configured with multiple Insulating component 6 and corresponding multiple positioning recess portion 5e.Insulating component 6 configures separated from each other on the coiling direction of each circle, Recess portion 5e is configured separated from each other on the coiling direction of each circle.Alternatively, it is also possible to be, in the lower surface of the 1st circle of coil 5 It is again provided with multiple insulating components 6 and corresponding multiple positioning recess portion 5e.That is, insulating component 6 is locally configured at Any one of the upper and lower surfaces of i-th circle (i is integer, 1≤i≤6).Insulating component 6 play by the i-th circle and with this The effect for remaining scheduled interval between the adjacent circle of i circle and insulating.

[forming method of insulating component]

Fig. 4 is the figure for illustrating the forming method of the insulating component 6 of coil 5 of embodiment 1.Electrodeposition coating device 10 has Standby electrode member 12, delivery head 13, conveyer belt 14.The coil 5 as coated object is installed in electrode member 12.Electrode member 12 are installed on delivery head 13 in a manner of it can go up and down.Conveyer belt 14 keeps delivery head 13 mobile.In addition, electrodeposition coating device 10 Including pretreatment tank 16, galvanic deposition cell 17, the power feeding section 19 comprising DC power supply etc., with power feeding section 19 it connect and receives Be contained in galvanic deposition cell 17 to electrode 18.The surface tension aqueous solution smaller than the surface tension of pure water is stored in pretreatment tank 16 15.Coating electrodeposit liquid 20 is stored in galvanic deposition cell 17.

In step, the electrode member 12 for being mounted with coil 5 is installed on delivery head 13, so that conveyer belt 14 is worked, makes defeated First 13 are sent to move to pretreatment tank 16.In addition, although not shown, but in coil 5, in recess portion 5e and its not set insulation nearby is covered Film 5b, conducting wire 5a exposure.

In stepb, coil 5 is impregnated in the aqueous solution 15 in pretreatment tank 16, the pretreatment before carrying out coating.

In step C, make the delivery head 13 for being equipped with coil 5 mobile again, in the shape that coil 5 is supported by electrode member 12 Under state, the coating electrodeposit liquid 20 that coil 5 is impregnated in galvanic deposition cell 17.Coating electrodeposit liquid 20 is containing polyamides Asia The public affairs of the resin component appropriate such as polyimide resin, polyamide, epoxy resin, polyamide-imide resin and polycarboxylic acid resin The electrodeposit liquid known.Apply voltage from power feeding section 19 to electrode 18, electric current is in electrode member 12 and between electrode 18 Flowing carries out electrodeposition coating to coil 5.Here, in the case where cationic electrodeposition coating, using the line as coated object That side of circle 5 is negative, applies scheduled voltage to the mode that side of electrode 18 is positive, and carries out electrodeposition coating.In yin In the case where cationic electrodeposition coating, scheduled voltage is applied with opposite polarity, carries out electrodeposition coating.In electrodeposition coating Before, sintering etc. has been carried out in insulating coating 5b, becomes stable overlay film.

In step D, make the delivery head 13 for being equipped with coil 5 mobile again, unload lower coil 5 from electrode member 12.

In addition, after step D, as needed, the coil 5 as coated object is washed, is dried, film Sintering etc., coil 5 become final coating product.For example, 5 side of coil in anionic electrodeposition coating, as coated object Anode nearby become acid, the acrylic resin with carboxyl agglomerates precipitation sometimes.In cationic electrodeposition coating, coil The cathode of 5 sides nearby becomes alkalinity, the melamine resin with amino, the analysis such as epoxy resin or acrylic resin Out.By being sintered these resins, coated film, the insulating component 6 i.e. in the case where present embodiment become solid film.Separately Outside, temperature when sintering is 150 DEG C or so, but can be suitably changed according to the type etc. of film.In addition, as described later, insulation The forming method of component 6 is not limited to above-mentioned, and other methods may be appropriately used.

[effect]

According to the present embodiment, scheduled interval will be remained between the adjacent circle of coil 5 using insulating component 6.Cause This, can make to insulate between the adjacent circle of coil 5.Thereby, it is possible to maintain the pressure resistance of coil 5.In addition, when in the whole of conducting wire 5a In the case that a surface is equipped with insulating coating 5b, between adjacent circle, insulating coating 5b itself will not directly phase mutual friction.Cause And the damage and removing of insulating coating 5b can be prevented, inhibit the generation of defective insulation.In particular, in the height of insulating component 6 In the case where more sufficiently large than the thickness of insulating coating 5b, it can make reliably to insulate between the adjacent circle of coil 5.Example as a result, In the motor 1 shown in Figure 1A~Fig. 1 C, pressure resistance can be maintained for a long time.The reliability of motor 1 improves as a result,.

In addition, fixture or machine can be used by the part being set to insulating component 6 between the adjacent circle of coil 5 Human arm etc. is held between the adjacent circle of coil 5.The processing transfiguration of coil 5 is easy as a result,.For example, shown in Figure 1A~Fig. 1 C Motor 1 in, coil 5 can be simply fitted to the tooth 42 of motor 1.In addition, in the inside using the cooling motor 1 of refrigerant In the case where, scheduled interval is set between the adjacent circle of coil 5 using insulating component 6.Therefore, refrigerant is easy to each It is flowed between circle, the cooling efficiency of coil 5 improves.The efficiency of motor 1 improves as a result,.

In addition, the coil 5 of present embodiment has scheduled rigidity, it is difficult to be bent compared with common flatwise coil, separately It is difficult to extend outside.The insulating component 6 between the adjacent circle of coil 5 is reliably kept by coil 5 as a result,.

Fig. 5 is the amplification stereogram for indicating the region A surrounded by single dotted broken line in Fig. 3.In addition, for ease of description, In Fig. 5, the diagram of recess portion 5e and insulating component 6 is omitted.

Rigidity in the case where the section of conducting wire 5a is in quadrangle, using size shown in fig. 5, with the i-th circle of coil 5 Relevant index G is indicated by (formula 1).

G=L/ (W1+W2+H1+H2) (formula 1)

Here,

W1 is the width of the upper surface side of the 3rd circle,

W2 is the width of the lower face side of the 3rd circle,

H1 is the thickness of the inner circumferential side of the 3rd circle,

H2 is the thickness of the peripheral side of the 3rd circle,

L is the length of the inner circumferential side of a coil side of the 3rd circle.

In addition, (formula 1) is equally applicable for other circles in addition to the 3rd circle of coil 5, namely the i-th circle.

It is length and the week in the section of the polygon of the i-th circle of coil 5 on one side of the i-th circle of coil 5 on the right of (formula 1) It is the ratio between long.In general, G is smaller, coil 5 is more difficult to be bent, and is difficult to extend.That is, making to the application external force of coil 5 In the case that it is deformed, the restoring force of coil 5 acts on stronger between the adjacent circle of coil 5.

In the coil 5 of present embodiment, the relationship of following formula is set up.

4 < L/ (W1+W2+H1+H2) < 22.3 (formula 2)

Compared to common flatwise coil, coil 5 is difficult to be bent, and is difficult to extend.As a result, in the restoring force of coil 5 Under the action of, insulating component 6 is securely held between the circle of coil 5, can make to insulate between the circle.

In the present embodiment, the number of turns of coil 5 is set as 5.However, the number of turns is not particularly limited in this, it is also possible to it His value.

In the present embodiment, the recess portion 5e of the positioning of insulating component 6 is set to coil 5, it is recessed however, you can also not be arranged Portion 5e.Recess portion 5e and insulating component 6 be set to the 1st circle~the 5th circle upper surface of coil 5, but can also by recess portion 5e and absolutely Edge component 6 is set to the 1st circle~the 5th circle lower surface of coil 5.

The shape of insulating component 6 is when looking down either quadrangle, is also possible to other shapes.It is excellent in coil 5 What is selected is the relationship establishment of (formula 2).For section the leading in the polygon in addition to quadrangle of conducting wire 5a as shown in Figure 5 Line 5a is also to utilize such material for being in same rigidity levels shown in (formula 2), is formed as being difficult to be bent and is difficult to prolong It stretches.In addition, even if in the case that the relationship shown in (formula 2) is invalid, by the way that insulating component 6 is configured at the adjacent of coil 5 Circle between, also can will remain scheduled interval between the adjacent circle of coil 5, make to insulate between the circle.

As described above, the coil 5 of present embodiment is the coil 5 that there is circle to arrange, which is arranged by being in polygon shape by section The conducting wire 5a of shape wind it is spiral and on direction from bottom to top be laminated made of the 1st circle~n-th circle (n be 3 or more it is whole Number) it constitutes, in any one of upper and lower surfaces of the i-th circle (i is integer, 1≤i≤n) locally configured with insulation structure Part 6.

Thereby, it is possible to ensure the insulation between the adjacent circle of coil 5.

(variation 1)

Fig. 6 A is the top view for indicating the 3rd circle of coil 5 of variation 1.Fig. 6 B be indicate variation 1 coil 5 it is another The top view of one the 3rd circle.In addition, for ease of description, in Fig. 6 A, 6B, saving sketch map to the circle in addition to the 3rd circle of coil 5 Show.

In coil 5, insulating component 6 is set as the interval holding between adjacent circle being scheduled interval, and makes phase It insulate between adjacent circle.For example, as shown in Figure 6A, insulating component 6 only can also be arranged in the quadrangle of each circle of coil 5. It as shown in Figure 6B, can also be near two corners of each circle of coil 5 and the midpoint of the coil side opposite with two corners Insulating component 6 is respectively set.In this case, the configuration of insulating component 6 is configured at each vertex of triangle when looking down, therefore Steadily scheduled interval will can be remained between the adjacent circle of coil 5.In this variation, insulating component 6 is using The solid insulating materials such as crosslinked polyethylene, epoxy resin, vinyl chloride or synthetic rubber are configured to scheduled shape, for example substantive On it is hemispherical after, be set to scheduled position shown in Fig. 6 A, 6B.In addition, instead of the shape of insulating component 6 shown in Fig. 4 At method, in the structure shown in embodiment 1, insulating component 6 can also be set in this way.Thus and thus, it does not need absolutely The patterning process of edge overlay film 5b, can simplify manufacturing process.Using the forming method, insulating component 6 can also With the surface for the insulating coating 5b that the surface being set in conducting wire 5a is arranged.In addition, insulating component 6 shown in Fig. 3 and Fig. 6 A, 6B Configuration is an example eventually.Allocation position, size, number and the shape of insulating component 6 can suitably change.

(embodiment 2)

Fig. 7 is the perspective view for indicating the coil 5 of embodiment 2.Fig. 8 is the 3rd circle for indicating the coil 5 of embodiment 2 Top view.In addition, for ease of description, in Fig. 7, omitting the diagram of lead division 5c, 5d.In fig. 8, removing for coil 5 is omitted The diagram of circle except 3rd circle.As shown in Figure 7, Figure 8, insulating component 6 is arranged 2 along the coiling direction of coil 5.Each insulation The continuously linear extension of component 6.Insulating component 6 mutually physically configures in parallel.

In the present embodiment, thermosetting resin or ultraviolet light are coated between the adjacent circle of coil 5 using pipe etc. After gel-type resin, it is made to be solidified to form insulating component 6.Spirally it is connected in coil 5, conducting wire 5a is difficult to the feelings deformed Under condition, it is difficult to be pre-formed the pattern of electrodeposition coating in insulating coating 5b like that for example, as shown in figure 4 sometimes, or as become The insulating component 6 for being pre-formed into scheduled shape is inserted between the adjacent circle of coil 5 like that shown in shape example 1.At this In the case where sample, it is for example inserted into nozzle between the adjacent circle of coil 5, thermosetting resin etc. is sprayed from nozzle, thus leading The upper surface of line 5a or lower surface form the linear pattern by formation such as resins.It thus and thus, can be in the entire of conducting wire 5a Insulating component 6 is easily configured on coiling direction.Simplify manufacturing process as a result,.Using this method, insulating component 6 can also be set to the surface for the insulating coating 5b that the surface in conducting wire 5a is arranged.

In the present embodiment, the recess portion 5e of the positioning of not set insulating component shown in Fig. 26, but also can be set Recess portion 5e.In this case, recess portion 5e can also be set as to the linear slot extended along the coiling direction of coil 5.It shows Insulating component 6 is set to the example of the 1st circle~the 5th circle upper surface of coil 5.However, insulating component 6 can also be set to coil 5 the 1st circle~the 5th circle lower surface.

(variation 2)

Fig. 9 A is the top view for indicating the 3rd circle of coil of variation 2.Fig. 9 B be indicate variation 2 coil it is another The top view of 3rd circle.In addition, for ease of description, in Fig. 9 A, 9B, the figure of the circle in addition to the 3rd circle of coil 5 is omitted Show.

In coil 5, insulating component 6 is set as the interval holding between adjacent circle being scheduled interval, and makes phase It insulate between adjacent circle.For example, as shown in Figure 9 A, insulating component 6 can also along coil 5 coiling direction linearly Setting 1.In addition, in this case, the interval between each circle in order to stably keep coil 5, such as configuration have than Fig. 8 Shown in insulating component 6 the big line width of line width insulating component 6.As shown in Figure 9 B, insulating component 6 can also be along coil 5 The coiling direction of each circle configure with being serrated.In this case, insulating component 6 is also in the width direction of the circle of coil 5 With the setting of scheduled length.Therefore, steadily scheduled interval will can be remained between each circle of coil 5.In addition, Fig. 8 and The configuration of insulating component 6 shown in Fig. 9 A, 9B is an example eventually.Allocation position, line width, height and the radical of insulating component 6 It can suitably change.

(embodiment 3)

Figure 10 is the perspective view for indicating the coil 5 of embodiment 3.Figure 11 is the 3rd circle for indicating the coil 5 of embodiment 3 Top view.In addition, for ease of description, in Figure 10, the diagram of lead division 5c, 5d is omitted.In Figure 11, line is omitted The diagram of the circle in addition to the 3rd circle of circle 5.Figure 10 indicate insulating component 61 be installed on coil 5 before state and be installed on line State after circle 5.

In the present embodiment, insulating component 61 is not the upper surface or lower surface for being set to each circle of coil 5 in advance, and It is to be clipped between the adjacent circle of coiled coil 5.Insulating component 61 is linked with sandwiches respectively in the upper and lower side of linking part 61b The insulating component of the substantial U-shaped of portion 61a.Insulating component 61 is by such as resin, insulating paper or is impregnated with the exhausted of resin The formation such as embolium.

Insulating component 61 is configured to sandwich between continuous 3 circle of coil 5.For example, as shown in Figure 10, matching as follows Set insulating component 61: the portion 61a that sandwiches linked with the upper end of linking part 61b is clipped between the 4th circle of coil 5 and the 5th circle, is linked Portion 61b extends with passing through the peripheral side of the 4th circle of coil 5, and the portion 61a that sandwiches linked with the lower end of linking part 61b is clipped in coil 5 The 3rd circle and the 4th circle between.In addition, configuring insulating component 61 as follows: being sandwiched with what the upper end of linking part 61b linked Portion 61a is clipped between the 2nd circle of coil 5 and the 3rd circle, and linking part 61b extends with passing through the peripheral side of the 2nd circle of coil 5, with company The portion 61a that sandwiches of the lower end connection of knot 61b is clipped between the 1st circle of coil 5 and the 2nd circle.In addition, as shown in Figure 10, Figure 11, Between adjacent circle, sandwich portion configured with insulating component 61 at two relative to a coil side, in addition, with line The opposite coil side in circle side also sandwiches portion configured with insulating component 61 at two.In addition, Figure 10 be omitted be configured at it is opposite The diagram of the insulating component 61 of coil side.In addition, though it is not shown in Figure 10, but the portion 61a of sandwiching can also be configured at the 5th circle Upper surface and the 1st circle lower surface.In addition, the portion 61a that sandwiches of insulating component 61 is for example fixed on line using adhesives etc. Each circle of circle 5.

According to the present embodiment, due to being clipped in the portion 61a that sandwiches of insulating component 61 between the adjacent circle of coil 5, because This simplifies the process that insulating component 61 is configured at coil 5.In particular, not needing the upper surface and following table in each circle of coil 5 Insulating component 6 is directly arranged in face, therefore does not need for example to form recess portion 5e shown in Fig. 2.In addition, being easy setting insulating component 61 Sandwich position, therefore can reduce manufacturing cost.

In addition, in the present embodiment, be set as the portion 61a that sandwiches of insulating component 61 being clipped in respectively between continuous 3 circle, But it is not particularly limited to this.For example, it can be the portion 61a that sandwiches linked with the upper end of linking part 61b is clipped in coil 5 Between 4th circle and the 5th circle, the portion 61a that sandwiches linked with the lower end of linking part 61b is clipped between the 1st circle of coil 5 and the 2nd circle, Linking part 61b extends with passing through the peripheral side of the 3rd~the 5th circle of coil 5.That is, insulating component 61 have be clipped in respectively the i-th circle and Between the circle adjacent with i-th circle and between jth circle and the circle adjacent with the jth circle (j is integer, 1≤j≤n and i ≠ j) The linking part 61b for sandwiching portion 61a and be connected to each other the portion 61a of sandwiching in the peripheral side of conducting wire 5a.

(variation 3)

Figure 12 A is the top view for indicating the 3rd circle of coil 5 of variation 3.Figure 12 B is the coil 5 for indicating variation 3 The top view of another 3rd circle.Figure 12 C is the top view for indicating another 3rd circle of coil 5 of variation 3.In addition, for the ease of Illustrate, in Figure 12 A~Figure 12 C, to the circle illustration omitted in addition to the 3rd circle of coil 5.

In coil 5, insulating component 61 is set as that scheduled interval will be remained between adjacent circle, and makes adjacent It insulate between circle.For example, as illustrated in fig. 12, can also configure insulating component in 4 coil sides of each circle of coil 5 61 sandwich portion 61a.It in this case, can be by line by the way that insulating component 61 is respectively configured near the midpoint of each coil side Interval between the adjacent circle of circle 5 stably keeps as scheduled interval.

In addition, as shown in Figure 12 B, being also possible in each circle of coil 5, being only configured in two opposite coil sides Insulating component 61.In addition, in this case, the interval between adjacent circle in order to stably keep coil 5, such as with figure 11, situation shown in Figure 12 A is compared, and the width for sandwiching portion 61a of insulating component 61 is made to broaden.It as indicated in fig. 12 c, can also be Insulating component is nearby respectively set in two adjacent corners of each circle of coil 5 and the midpoint of the coil side opposite with two corners 61.In this case, the configuration of insulating component 61 is configured at each vertex of triangle when looking down.Therefore, can steadily by Interval holding between the adjacent circle of coil 5 is scheduled interval.In addition, the structure that insulate shown in Figure 11 and Figure 12 A~Figure 12 C The configuration of part 61 is an example, the allocation position of insulating component 61, the width for sandwiching portion 61a, thickness and insulating component 61 eventually Configuration number etc. can suitably change.

(variation 4)

Figure 13 is the perspective view for indicating the coil 5 of variation 4.In addition, for ease of description, in Figure 13, being omitted and drawing The diagram of portion 5c, 5d out.In addition, Figure 13 indicate insulating component 62 be installed on coil 5 before state and be installed on after coil 5 State.

The structure of this variation is with the structure of embodiment 2 the difference is that the shape of insulating component.This variation Insulating component 62 be to be linked with to sandwich the insulating component of portion 62a along the vertical direction at predetermined intervals in linking part 62b.Also It is to say, the portion 62a that sandwiches of insulating component 62 is each extended between all circles of coil 5, in the peripheral side benefit of each circle of coil 5 It is interconnected with linking part 62b.In addition, the portion 62a of sandwiching also is configured at the upper surface of the 5th circle and the lower surface of the 1st circle.

The adjacent interval for sandwiching portion 62a is with the thickness of the conducting wire 5a of coil 5 and set on conducting wire 5a's in the up-down direction 2 times of the sum of value of the thickness of the insulating coating 5b on surface is substantially equal.Here, " being substantially equal " refers to, it include coil 5 Conducting wire 5a and insulating coating 5b machining tolerance and the insulating component 62 including sandwiching portion 62a machining tolerance and phase Deng.In the case where the not set insulating coating 5b in the surface of conducting wire 5a, the adjacent interval for sandwiching portion 62a in the up-down direction It is substantially equal with the thickness of conducting wire 5a.The portion 62a that sandwiches of insulating component 62 is for example fixed on coil 5 using adhesives etc. Each circle.

According to this modification, shown in the embodiment 3 compared with structure, be installed on the number of the insulating component of coil 5 compared with It is few can also be with.Thereby, it is possible to more simplify the process that insulating component 62 is installed on coil 5.Thereby, it is possible to further decrease structure Part cost and manufacturing cost.

In addition, the configuration of insulating component 62 is not particularly limited in structure shown in Figure 13, for example, also can be set to Figure 12 A~ It is configured shown in Figure 12 C.In addition, the configuration of these insulating components 62 is an example eventually, the allocation position of insulating component 62 is sandwiched Configuration number of the width of portion 62a, the thickness for sandwiching portion 62a and insulating component 62 etc. can suitably change.

(variation 5)

Figure 14 is the perspective view for indicating the coil 5 of variation 5.In addition, for ease of description, in Figure 14, being omitted and drawing The diagram of portion 5c, 5d out.In addition, Figure 14 indicate insulating component 63 be installed on coil 5 before state and be installed on after coil 5 State.

The structure of this variation is biggish the difference is that insulating component with the structure of embodiment 2 and variation 4 Shape.For the insulating component 63 of this variation, the portion 63a of sandwiching two-dimensionally and is separated from each other linked to linking part 63b.The portion 63a that sandwiches of insulating component 63 is each extended between all circles of coil 5, in the peripheral side benefit of each circle of coil 5 It is interconnected with linking part 63b.In addition, the portion 63a of sandwiching also be configured at the upper surface of coil 5, namely the 5th circle upper surface and The lower surface of 1st circle of the lower surface of coil 5, namely coil 5.

The adjacent interval for sandwiching portion 63a is with the thickness of the conducting wire 5a of coil 5 and set on conducting wire 5a's in the up-down direction 2 times of the sum of value of the thickness of the insulating coating 5b on surface is substantially equal.Here, " being substantially equal " refers to, it include coil 5 Conducting wire 5a and insulating coating 5b machining tolerance and the insulating component 63 including sandwiching portion 63a machining tolerance and phase Deng.In the case where the not set insulating coating 5b in the surface of conducting wire 5a, the adjacent interval for sandwiching portion 63a in the up-down direction It is substantially equal with the thickness of conducting wire 5a.

In addition, configuration is distinguished between the adjacent circle of coil 5 in the portion 63a that sandwiches on the direction that up and down direction is intersected At 4, specifically the coil side in a coil side and corresponding thereto is respectively configured at two respectively.In addition, insulation structure Part 63 is respectively arranged at the opposite side in 4 sides of coil 5.When from the side of coil 5, insulating component 63 covers The entire side of lid coil 5 is the size substantially the same with the side.Here, " substantially the same " refers to, it include coil 5 Machining tolerance and the machining tolerance of insulating component 63 and it is identical.The portion 63a that sandwiches of insulating component 63 for example utilizes adhesives Etc. each circle for being fixed on coil 5.

According to this modification, with variation 4 shown in the same manner as structure, the number of insulating component is less can also be with.As a result, It can reduce manufacturing cost.In turn, the linking part 63b of insulating component 63 is configured in a manner of covering the side of coil 5, therefore is sought Ask the insulation between the component adjacent with coil 5.For example, all installing insulating component 63 according in 4 sides of coil 5 Structure, then it is between stator core 41 and tooth 42 and coil 5 or adjacent in the motor 1 shown in Figure 1A~Fig. 1 C Insulating component can also be not provided between coil.Seek to reduce component cost as a result, and assembles cost.Alternatively, it is also possible to basis The insulating component of this variation is arranged in opposite two side of coil 5 or 3 sides in the configuration of adjacent external component 63。

Same, the insulating component 63 with insulating component 62 shown in insulating component 61 shown in embodiment 3 and variation 4 Resin etc. can be used and pass through the forming such as injection moulding.In addition, insulating component 63 also can use insulating paper or be impregnated with tree The formation such as insulating paper of rouge.In this case, if the insulating component for constituting insulating component 63 is sheet, is, for example, with scheduled Insulating paper can then be cut and carry out bending process and form insulating component 63 by the insulating paper etc. of thickness.Using insulating paper In the case where, 1 insulating paper cutting can be made.In this case, it does not need using mold used in injection moulding, because This seeks to reduce manufacturing cost.In addition, 1 insulating paper is cut at multiple positions and is bent and is formed and sandwich portion 63a In the case where, it is also set as, the thickness of the adjacent interval for sandwiching portion 63a and the conducting wire 5a of coil 5 and is set in the up-down direction 2 times of the sum of value of the thickness of the insulating coating 5b on the surface of conducting wire 5a is substantially equal.

In addition, the configuration of insulating component 63 shown in Figure 14 is an example eventually, the allocation position of insulating component 63, size and Configuration number and the width and thickness for sandwiching portion 63a etc. can suitably change.

In addition, using example of the coil 5 in the stator 4 of motor 1 in above embodiment 1~3 and variation 1~5 Son is illustrated.However, technology disclosed herein is not particularly limited to this, it can also apply to other purposes, for example send out The reactor etc. in coil and power equipment in motor.

In such a configuration, show the upper and lower surfaces in coil 5 be locally configured with insulating component 6 or The example for sandwiching any one of portion 61a, 62a, 63a of insulating component 61,62,63.However, it is also possible in the upper table of coil 5 Insulating component 6 etc. is arranged in any one of face and lower surface.Alternatively, it is also possible to not in these positions setting insulating component 6 etc..

For example, coil 5 is wound in tooth 42 and is configured in slot 43 in the motor 1 shown in Figure 1A~Fig. 1 C.In the situation Under, insulator (not shown), such as insulating paper are equipped between coil 5 and tooth 42 and between coil 5 and stator core 41.Absolutely Insulation between edge paper hold-in winding 5 and these components.It is waited when the upper and lower surfaces setting insulating component 6 in coil 5 In the case of, it can make more reliably to insulate between coil 5 and stator core 41 and between coil 5 and tooth 42.

It in turn, can also be without the insulating coating 5b set on the surface of conducting wire 5a.It can omit to form insulating coating 5b's Process.Therefore, seek to reduce manufacturing cost.In the case that insulating coating 5b is set on the surface of conducting wire 5a, coil 5 can be made Between stator core 41 shown in external component, such as coil 5 and Fig. 1 C and between tooth 42 shown in coil 5 and Fig. 1 C More reliably insulate.In addition, can make more reliably to insulate between the adjacent circle of coil 5.

In addition, the cross sectional shape of conducting wire 5a is quadrangle, either rectangular shape, is also possible to trapezoidal.In addition to four sides Except shape, it is also possible to triangle or pentagon.Alternatively, it is also possible to being the polygon of pentagon or more.

Coil 5 can be formed by casting.Using this method, the biggish conducting wire of sectional area easily can be configured to spiral The convolute coil of shape.It is however not limited to cast, can also be formed by other methods.For example, it is also possible to by copper, aluminium, zinc, magnesium, The solids such as iron, SUS or brass cut.In addition, for example, it is also possible to by welding etc. by separately formed zero Part is engaged to each other and is formed.

(embodiment 4)

Figure 15 A is the perspective view for indicating the coil 5 of embodiment 4.Figure 15 B is the insulating paper 71 for indicating embodiment 4 Perspective view.Figure 15 C is the perspective view for indicating the insulating paper 72 of embodiment 4.Figure 15 D is the coil 57 for indicating embodiment 4 Perspective view.

Other than insulating coating 5b and insulating component 6, the coil 5 of coil 5 and Fig. 2 are identical constructions.

Insulating paper 71 is in the shape of Japanese katakana "U" word.The material of insulating paper 71 is aramid fiber (all aromatic polyamides Amine), staple fiber (flocculate), synthesis pulp (fine shape object), kraft pulp, abaca, cotton, Edgeworthia chrysantha, PET etc..By multiple Insulating paper 71 engages, and forms insulating paper 72 shown in Figure 15 C.

By insulating paper 71 between the adjacent circle of the right side and left side of coil 5 insertion coil 5, formed shown in Figure 15 D Coil 57.

Figure 16 is the perspective view for indicating another insulating paper 73 of embodiment 4.The difference of insulating paper 72 and insulating paper 73 It is in insulating paper 72 is to engage multiple insulating papers 71 and formed, in contrast, insulating paper 73 is formed by 1 paper.

Figure 17 is the perspective view of the coil 8 after the molding for indicating embodiment 4.Coil 8 after molding is by coil Obtained from 57 are moulded.

According to the present embodiment, scheduled interval will be remained between the adjacent circle of coil 57 using insulating paper.Therefore, It can make reliably to insulate between the adjacent circle of coil 57.Thereby, it is possible to maintain the pressure resistance of coil 57.

(embodiment 5)

Figure 18 A is the perspective view for indicating the coil 58 of embodiment 5.Figure 18 B is the line after the molding for indicating embodiment 5 The perspective view of circle 8.

Coil 58 is and being inserted into insulating paper 73 shown in Figure 16 between the adjacent circle of coil 5 shown in Figure 15 A It obtains.

Coil 8 after molding is as obtained from moulding to coil 58.

Coil 8 after obtaining the higher molding of reliability as a result,.It is heavy for the electricity between coil layer, between adjacent windings Product coating defective insulation position or insulating paper defective insulation position, molding can by compensate this it is undesirable in the form of generate Insulating coating.In turn, the effect for making the constant shape of coil entirety is generated.This can expect following effect: be assembled in tooth When, the gap of adjacent coil to each other can be remained constant, prevent from being formed the contact of coil to each other in processing, prevent Only because caused by insulation breakdown reliability reduce.

(embodiment 6)

Figure 19 is the perspective view of the coil 8 after the molding for indicating embodiment 6.

In Figure 19, the cooling window 81 of coil is the place in molding for supporting part close contact (not shown).In coil Cooling window 81 does not form resin, coil exposed, therefore coil and is easy cooling.

As a result, other than obtaining the coil 8 after the higher molding of reliability, motor also is improved using coil cooling effect Characteristic.The insulation at defective insulation position or insulating paper for the electrodeposition coating between coil layer, between adjacent windings is not Good position, molding can by compensate this it is undesirable in the form of generate insulating coating.In turn, the constant shape for making coil entirety is generated Effect.This can expect following effect: when being assembled in tooth, the gap of adjacent coil to each other can be remained perseverance It is fixed, the contact of the coil to be formed in processing to each other is prevented, reliability reduces caused by preventing because of insulation breakdown.

(embodiment 7)

Figure 20 is the perspective view of the coil 8 after the molding for indicating embodiment 7.

In Figure 20, in coil 8 after the moulding, the cooling window 81 of coil is not only present in front surface and the side of coil, It is also present in the upper surface of coil.Therefore, coil is easier to cool down.

As a result, other than obtaining the coil 8 after the higher molding of reliability, motor also is improved using coil cooling effect Characteristic.The insulation at defective insulation position or insulating paper for the electrodeposition coating between coil layer, between adjacent windings is not Good position, molding can by compensate this it is undesirable in the form of generate insulating coating.In turn, the constant shape for making coil entirety is generated Effect.This can expect following effect: when being assembled in tooth, the gap of adjacent coil to each other can be remained perseverance It is fixed, the contact of the coil to be formed in processing to each other is prevented, reliability reduces caused by preventing because of insulation breakdown.

(embodiment 8)

Figure 21 is the perspective view of the coil 8 after the molding for indicating embodiment 8.Figure 22 is indicate embodiment 8 another The perspective view of coil 8 after molding.Figure 23 is the perspective view of the coil 8 after the another molding for indicating embodiment 8.

In Figure 21, in coil 8 after the moulding, the line portion 82 of not formed resin is formed in the side of coil.Online portion In 82, coil exposed, therefore coil is easy cooling.

In Figure 22, in coil 8 after the moulding, the line portion 82 of not formed resin be formed in coil side and preceding table Face.Therefore, coil is easier to cool down.

In Figure 23, in coil 8 after the moulding, the line portion 82 of not formed resin be formed in coil side and upper table Face.Therefore, coil is easier to cool down.

The coil 8 after the higher molding of reliability is obtained as a result,.It is heavy for the electricity between coil layer, between adjacent windings Product coating defective insulation position or insulating paper defective insulation position, molding can by compensate this it is undesirable in the form of generate Insulating coating.In turn, the effect for making the constant shape of coil entirety is generated.This can expect following effect: be assembled in tooth When, the gap of adjacent coil to each other can be remained constant, prevent from being formed the contact of coil to each other in processing, prevent Only because caused by insulation breakdown reliability reduce.

Industrial availability

The coil of the disclosure can make reliably to insulate between the adjacent circle of coil, be able to maintain that the pressure resistance of coil.Cause This, is useful in terms of being applied to motor or power equipment.

Description of symbols

1, motor；2, axis；2a, hollow portion；2b, through hole；3, rotor；4, stator；5,57,58, coil；5a, conducting wire； 5b, insulating coating (insulating layer)；5c, 5d, lead division；5e, recess portion (positioning region)；6,61,62,63, insulating component；8, after moulding Coil；10, electrodeposition coating device；12, electrode member；13, delivery head；14, conveyer belt；15, aqueous solution；16, it pre-processes Slot；17, galvanic deposition cell；18, to electrode；19, power feeding section；20, coating electrodeposit liquid；31, magnet；41, stator core； 42, tooth；43, slot；51~54, busbar；61a, 62a, 63a, portion is sandwiched；61b, 62b, 63b, linking part；71,72,73, insulation Paper；81, the cooling window of coil；82, line portion；C, refrigerant；U11,U22,U32,U41,V12,V21,V31,V42,W11,W22, W32, W41, coil.