阅读说明：本技术 定子绝缘骨架、电机定子、电机、空调器 (Stator insulation framework, motor stator, motor and air conditioner ) 是由 徐跃峰 姚碧波 覃宏 肖凯 曹璇 于 2021-09-14 设计创作，主要内容包括：本发明提供一种定子绝缘骨架、电机定子、电机、空调器,其中的定子绝缘骨架,包括骨架本体,所述骨架本体具有对应于定子铁芯上的绕组的绝缘齿部以及背离于所述定子铁芯的绕组接线侧,还包括绝缘护套,所述绝缘护套可拆卸地连接于所述绕组接线侧,以将所述绕组罩于所述绝缘护套朝向所述定子铁芯的一侧。根据本发明,能够对处于所述绝缘护套朝向所述定子铁芯一侧的绕组与处于所述绝缘护套背离所述定子铁芯一侧端盖之间形成绝缘隔离,有效防止所述绕组的引出线与所述端盖接触造成电机短路,无需如现有技术中那样在绕组与端盖之间保留较大的电气安全距离,从而有效减小电机内部的轴向空间,进而减小电机体积。(The invention provides a stator insulation framework, a motor stator, a motor and an air conditioner, wherein the stator insulation framework comprises a framework body, the framework body is provided with an insulation tooth part corresponding to a winding on a stator core and a winding wiring side departing from the stator core, and the stator insulation framework further comprises an insulation sheath, and the insulation sheath is detachably connected to the winding wiring side so as to cover the winding on one side, facing the stator core, of the insulation sheath. According to the invention, insulation isolation can be formed between the winding at one side of the insulation sheath facing the stator core and the end cover at one side of the insulation sheath facing away from the stator core, the short circuit of the motor caused by the contact of the outgoing line of the winding and the end cover is effectively prevented, and a larger electrical safety distance does not need to be reserved between the winding and the end cover as in the prior art, so that the axial space in the motor is effectively reduced, and the volume of the motor is further reduced.)

1. The utility model provides a stator insulation skeleton, its characterized in that, includes skeleton body (1), skeleton body (1) have corresponding to the insulating tooth portion (11) of winding (20) on stator core (10) and deviate from in the winding wiring side of stator core (10), still include insulating sheath (2), insulating sheath (2) detachably connect in winding wiring side, with winding (20) cover in insulating sheath (2) orientation one side of stator core (10).

2. Stator insulation framework according to claim 1, characterized in that the insulation sheath (2) is snap-fitted to the framework body (1).

3. The stator insulation framework of claim 1, wherein the winding wiring side of the framework body (1) is provided with a plurality of positioning columns (12), the positioning columns (12) protrude from the winding wiring side along the axial direction of the stator core (10), the positioning columns (12) are arranged on the side surface of the radial outer side of the stator core (10) and provided with wiring slots (121), and outgoing lines of the windings (20) can run in the wiring slots (121).

4. The stator insulation framework of claim 3, wherein the insulation sheath (2) is provided with an annular plate body (21) and a cylinder body (22) arranged at the edge of the annular plate body (21), and when the insulation sheath (2) is connected with the framework body (1), the cylinder body (22) is sleeved on the radial outer side of the positioning column (12).

5. The stator insulation framework as recited in claim 4, wherein the inner side of the cylinder (22) is provided with a plurality of fixing posts (221), and the plurality of fixing posts (221) are respectively arranged in one-to-one correspondence with the plurality of positioning posts (12) to prevent the outgoing wires from being pulled out of the cabling channel (121).

6. The stator insulation framework according to claim 5, characterized in that the end of the fixing column (221) facing the stator core (10) is a circular arc surface.

7. The stator insulation framework of claim 4, wherein a plurality of positioning holes (211) are formed in the annular plate body (21), and when the insulation sheath (2) is connected with the framework body (1), the free ends of the positioning columns (12) are respectively inserted into the positioning holes (211) in a one-to-one correspondence manner.

8. Stator insulation skeleton according to claim 4, characterized in that a plurality of notches (222) are formed on the end face of the cylinder (22) facing the stator core (10); and/or a plurality of bulges (223) are arranged on the outer circumferential surface of the cylinder body (22).

9. A stator for an electrical machine, comprising a stator insulation skeleton according to any one of claims 1 to 8.

10. An electrical machine comprising the electrical machine stator of claim 9.

11. An air conditioner characterized by comprising the motor of claim 10.

Technical Field

The invention belongs to the technical field of motor manufacturing, and particularly relates to a stator insulation framework, a motor stator, a motor and an air conditioner.

Background

At present, the environmental quality draws attention and attention of people more and more, and the purification of indoor microenvironment, especially air purification and the whole solution of air temperature regulation need to solve urgently. Therefore, a fresh air environment-controlled all-in-one air conditioner which can adjust indoor air temperature and purify air is needed, and the running stability of a motor serving as one of core components in the fresh air environment-controlled all-in-one air conditioner is particularly important. One of the important factors influencing the stability of the motor is the insulation problem inside the motor, and the problem of insulation between the winding of an electrified component inside the motor and the end cover and the iron core of the conductive component is solved and prevented, which is particularly important, otherwise, the motor is easy to be short-circuited to burn out, so that the air conditioner of the fresh air environment-controlled all-in-one machine is in failure, and accidents of incapable normal air purification and air temperature regulation are caused. The conventional insulation technology at present is to insulate a motor winding and an iron core by using skeleton isolation, a large enough gap is left between the winding and an end cover, and no other protection insulation measures are provided, so that the internal space of the motor is wasted.

Disclosure of Invention

Therefore, the invention provides a stator insulation framework, a motor stator, a motor and an air conditioner, which can overcome the defect that the space requirement of the motor is large and the space inside the motor is wasted due to insulation protection between a winding and a motor end cover in the related art by reserving a large electrical safety distance.

In order to solve the above problems, the present invention provides a stator insulation framework, which includes a framework body having insulation teeth corresponding to windings on a stator core and a winding connection side away from the stator core, and an insulation sheath detachably connected to the winding connection side to cover the windings on a side of the insulation sheath facing the stator core.

In some embodiments, the insulating sheath is snap-fit to the skeletal body.

In some embodiments, the winding wiring side of the framework body is provided with a plurality of positioning columns, the positioning columns protrude out of the winding wiring side along the axial direction of the stator core, the positioning columns are located on the side face of the radial outer side of the stator core and provided with wiring grooves, and outgoing lines of the windings can run in the wiring grooves.

In some embodiments, the insulating sheath has an annular plate and a cylinder at an edge of the annular plate, and the cylinder is sleeved on a radial outer side of the positioning column after the insulating sheath is connected with the framework body.

In some embodiments, the inner side of the barrel is provided with a plurality of fixing columns, and the plurality of fixing columns are respectively arranged in one-to-one correspondence to the plurality of positioning columns so as to prevent the outgoing lines from falling out of the wiring groove.

In some embodiments, the end of the fixing column facing the stator core is a circular arc surface.

In some embodiments, a plurality of positioning holes are formed in the annular plate, and after the insulating sheath is connected to the framework body, the free ends of the positioning columns are respectively inserted into the positioning holes in a one-to-one correspondence manner.

In some embodiments, a plurality of notches are formed on the end surface of the cylinder body facing the stator core; and/or a plurality of bulges are arranged on the outer circumferential surface of the cylinder body.

The invention also provides a motor stator which comprises the stator insulation framework.

The invention also provides a motor which comprises the motor stator.

The invention also provides an air conditioner which comprises the motor.

According to the stator insulation framework, the motor stator, the motor and the air conditioner, the insulation sheath is connected at the winding wiring side, so that insulation isolation can be formed between the winding positioned on one side, facing the stator core, of the insulation sheath and the end cover positioned on one side, away from the stator core, of the insulation sheath, the lead-out wire of the winding is effectively prevented from being in contact with the end cover to cause short circuit of the motor, a large electrical safety distance does not need to be reserved between the winding and the end cover as in the prior art, the axial space inside the motor is effectively reduced, and the size of the motor is further reduced.

Drawings

Fig. 1 is a schematic perspective view of an insulating sheath in a stator insulating framework according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure A-A in FIG. 1;

FIG. 3 is a schematic view of B-B in FIG. 1;

fig. 4 is a schematic perspective view of a bobbin body in the stator insulation bobbin according to the embodiment of the present invention;

fig. 5 is a schematic perspective view of a stator of an electric machine according to an embodiment of the present invention (in which an insulating sheath is not assembled);

fig. 6 is a schematic perspective view of a stator of an electric machine according to an embodiment of the present invention (in which an insulating sheath is assembled);

FIG. 7 is a schematic view of the structure of C-C in FIG. 6;

FIG. 8 is a schematic view of D-D of FIG. 6;

fig. 9 is a schematic perspective view of a motor according to an embodiment of the present invention;

fig. 10 is a schematic view of the internal structure of the motor according to the embodiment of the present invention;

fig. 11 is a schematic (partial) internal structure diagram of an air conditioner according to an embodiment of the present invention.

The reference numerals are represented as:

1. a skeleton body; 11. an insulating tooth portion; 12. a positioning column; 121. a wiring groove; 13. a card slot; 2. an insulating sheath; 21. an annular plate body; 211. positioning holes; 22. a barrel; 221. fixing a column; 222. a notch; 223. a protrusion; 224. a hook is clamped; 10. a stator core; 20. a winding; 30. a housing; 40. an end cap; 50. a fan blade.

Detailed Description

Referring to fig. 1 to 11 in combination, according to an embodiment of the present invention, there is provided a stator insulation framework, including a framework body 1, the framework body 1 having insulation teeth 11 corresponding to windings 20 on a stator core 10 and a winding connection side facing away from the stator core 10, and further including an insulation sheath 2, the insulation sheath 2 being detachably connected to the winding connection side to cover the windings 20 on a side of the insulation sheath 2 facing the stator core 10. In the technical scheme, the insulation sheath 2 is connected at the winding wiring side, so that insulation isolation can be formed between the winding on one side, facing the stator core 10, of the insulation sheath 2 and the end cover 40 on one side, facing away from the stator core 10, of the insulation sheath 2, the outgoing line of the winding 20 is effectively prevented from being in contact with the end cover 40 to cause short circuit of the motor, a large electrical safety distance does not need to be reserved between the winding 20 and the end cover 40 as in the prior art, the internal axial space of the motor is effectively reduced, and the size of the motor is further reduced.

The insulating sheath 2 and the skeleton body 1 may be made of a non-metal insulating material, such as PA (Polyamide), PBT (Polybutylene Terephthalate), and the like, which has good insulating property and mechanical property.

In some embodiments, the insulating sheath 2 is connected to the bobbin body 1 in a snap-fit manner, for example, the insulating sheath 2 has a plurality of hooks 224, a plurality of slots 13 are configured on corresponding positions of the bobbin body 1, for example, on a side surface of the winding connection side, and the plurality of hooks 224 are respectively connected to the plurality of slots 13 in a one-to-one correspondence manner, so that the insulating sheath 2 and the bobbin body 1 can be assembled conveniently. Specifically, an acute angle is formed between the lower end surface of the hook 224 (i.e., the end surface facing the winding wiring side) and the plane of the winding wiring side, so that when the insulating sheath is pressed down, the insulating sheath 2 slides into the slot 13 on the framework body 1, thereby protecting the hook 224 and the insulating sheath; the upper end face of the hook 224 is horizontal or concave, so that the insulating sheath 2 can firmly buckle the clamping groove 13 on the framework body 1, the insulating sheath 2 is fixed, and the insulating sheath is prevented from slipping along the axial direction.

In some embodiments, the winding wiring side of the bobbin body 1 is provided with a plurality of positioning columns 12, the positioning columns 12 protrude from the winding wiring side along the axial direction of the stator core 10, the positioning columns 12 are located on the side surface of the radial outer side of the stator core 10, the outgoing lines of the windings 20 can run in the wiring grooves 121, in the technical scheme, the positioning columns 12 can fix the routing paths of the outgoing lines, so that the routing layout of the outgoing lines is more reasonable and regular, the wiring grooves 121 extend around the circumferential direction of the stator core 10, and a plurality of positioning columns 12 are formed in the height direction, so that the coil outgoing lines of different phases can independently run in different wiring grooves 121.

As a specific structure of the insulating sheath 2, the insulating sheath 2 has an annular plate 21 and a cylinder 22 at the edge of the annular plate 21, it can be understood that the annular plate 21 is to be located between the winding 20 and the end cap 40 to meet the insulating requirement between the winding 20 and the end cap 40, and after the insulating sheath 2 is connected to the framework body 1, the cylinder 22 is sleeved on the radial outer side of the positioning column 12 to prevent the outgoing line (also called a bridge line) in the cabling channel 121 from coming out.

In some embodiments, the inner side of the cylinder 22 has a plurality of fixing posts 221, and the plurality of fixing posts 221 are respectively disposed in one-to-one correspondence to the plurality of positioning posts 12 to prevent the outgoing wires from coming out of the routing slot 121, so as to prevent the outgoing wires from contacting the stator core 10 or the end cover 40 to cause a short-circuit accident. In some embodiments, the end of the fixing pillar 221 facing the stator core 10 is a circular arc surface, so as to avoid scratching the winding 20 when the insulating sheath 2 is connected with the framework body 1. The main body section of the fixing post 221 may be circular, trapezoidal, tapered, etc., and the present invention is not limited thereto.

In some embodiments, a plurality of positioning holes 211 are formed in the annular plate 21, when the insulating sheath 2 is connected to the framework body 1, the free ends of the positioning posts 12 are respectively inserted into the positioning holes 211 in a one-to-one correspondence manner, the positioning holes 211 may be rectangular, arc-shaped, and the like, and the positioning holes 211 are in nested fit with the end portions of the positioning posts 12, so as to position the insulating sheath 2 to prevent the insulating sheath 2 from rotating in the circumferential direction.

In some embodiments, a plurality of notches 222 are configured on the end surface of the cylinder 22 facing the stator core 10, and the shape of the notches 222 may be rectangular, trapezoidal, etc. to release the tension caused by the outward radial expansion of the hooks 224 due to extrusion when the insulating sheath is pressed down, so as to protect the hooks 224 from being damaged and protect the insulating sheath 2 from being broken; and/or, be equipped with a plurality of archs 223 on the outer periphery of barrel 22, arch 223 can be cylindricality, trapezoidal, rectangle etc. shape, and during the assembly, the outer circumference side of insulating sheath 2 can pass through arch 223 with 40 inside wall interference fit of end cover, thereby play fixedly insulating sheath 2's effect.

It can be understood that the center of the annular plate 21 is a through hole of the rotor, which may be circular or elliptical, and the aperture of the through hole should not be larger than the inner diameter of the winding 20 and not smaller than the aperture of the central hole of the rotor core, so that the insulating sheath 2 can axially isolate the winding 20 from the end cover 40, thereby playing an insulating role, and simultaneously enabling the motor rotor to smoothly pass through the central hole and the through hole, preventing interference, and playing a role of avoiding the motor rotor.

According to an embodiment of the invention, the motor stator is also provided, and the motor stator comprises the stator insulation framework.

According to an embodiment of the present invention, there is also provided an electric machine, including the above-mentioned electric machine stator, it is understood that the electric machine includes a housing 30, the end cover 40 is a part of the housing 30 and is detachably connected with the through hole aperture of the housing 30, and the electric machine stator can be connected with the end cover 40 in an interference fit manner.

According to an embodiment of the invention, an air conditioner, in particular to a fresh air environment-control all-in-one machine air conditioner, is further provided, and comprises the motor, wherein the motor is used for driving the fan blades 50 in the air conditioner.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.