阅读说明：本技术 交流接触器 (AC contactor ) 是由 齐小军 于 2021-09-13 设计创作，主要内容包括：本发明公开了一种交流接触器,包括：动铁芯销；触头支架,触头支架开有限位部；动铁芯单元,动铁芯单元设置有通孔,通孔用于供动铁芯销插入；动铁芯销与通孔插入配合时,动铁芯销用于卡接于限位部。本发明公开的交流接触器可以使连接有动铁芯单元的动铁芯销插入到限位部中,从而完成动铁芯单元与触头支架的装配。装有动铁芯销的动铁芯单元与触头支架之间的装配关系简单,使用人手即可轻松完成动铁芯单元与触头支架的插入装配,可以节约装配工时,从而降低生产成本。(The invention discloses an AC contactor, comprising: a moving core pin; the contact support is provided with a limiting part; the movable iron core unit is provided with a through hole for inserting a movable iron core pin; when the moving iron core pin is inserted into and matched with the through hole, the moving iron core pin is used for being clamped in the limiting part. The alternating current contactor disclosed by the invention can enable the movable iron core pin connected with the movable iron core unit to be inserted into the limiting part, so that the assembly of the movable iron core unit and the contact support is completed. The movable iron core unit provided with the movable iron core pin is simple in assembly relation with the contact support, the movable iron core unit and the contact support can be easily inserted and assembled by hands, assembly time can be saved, and therefore production cost is reduced.)

1. An ac contactor, comprising:

a moving core pin;

the contact support is provided with a limiting part;

the movable iron core unit is provided with a through hole, and the through hole is used for inserting the movable iron core pin;

when the moving iron core pin is inserted into and matched with the through hole, the moving iron core pin is used for being clamped on the limiting part.

2. The alternating current contactor according to claim 1, wherein the moving core pin is provided with a tilting structure for being matched and clamped with the limiting part.

3. The ac contactor according to claim 2, wherein the tilting structure comprises a first tilting structure and a second tilting structure, the limiting portion comprises a first limiting portion and a second limiting portion, the first tilting structure is in fit clamping connection with the first limiting portion, and the second tilting structure is in fit clamping connection with the second limiting portion.

4. The ac contactor according to claim 1, wherein said moving core pin is provided with a projection at a middle portion thereof for abutting against said moving core unit.

5. An AC contactor as claimed in claim 4, wherein said protrusions are arranged in an arcuate configuration.

6. An alternating current contactor according to claim 1, wherein the contact support is provided with a self-locking reverse buckle, and the movable iron core unit is provided with a groove for being matched and clamped with the self-locking reverse buckle.

7. The ac contactor according to claim 1, wherein said stopper portion is provided with a chamfer for guiding an insertion position of said moving core pin when a positional deviation occurs in the insertion engagement of said moving core pin with said stopper portion.

8. The ac contactor as claimed in claim 7, wherein the chamfer includes a first chamfer for guiding an insertion position of the moving core pin in a first direction, the first chamfer being provided at one end of the stopper portion.

9. The ac contactor as claimed in claim 7, wherein said chamfer further comprises a second chamfer for guiding said moving core pin insertion position in a second direction, said second chamfer being provided on a side surface of said stopper portion.

10. An ac contactor according to claim 1, wherein said contact holder is provided with a boss for performing a limit guide of said plunger unit.

Technical Field

The invention relates to the technical field of electrical equipment, in particular to an alternating current contactor.

Background

In order to control the attractive force characteristic of the alternating current contactor within a design range, a movable iron core needs to be completely fixed on a movable contact support, the assembly process of the traditional movable iron core unit fixing mode is that firstly, the movable iron core unit is placed into a contact support, then an iron core pin is inserted into pin holes of the contact support and the movable iron core unit, and the contact support and the movable iron core unit are completely fixed through the iron core pin. Since the core pin is an elastic member and has a large elastic force, it is difficult to insert the core pin into the pin hole using a manual operation during the assembly process, which increases the assembly man-hour, so that the production cost of the contactor increases.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention provides the alternating current contactor which can reduce the assembly time and the production cost.

An embodiment of the present invention provides an ac contactor, including:

a moving core pin;

the contact support is provided with a limiting part;

the movable iron core unit is provided with a through hole, and the through hole is used for inserting the movable iron core pin;

when the moving iron core pin is inserted into and matched with the through hole, the moving iron core pin is used for being clamped on the limiting part.

According to the alternating current contactor provided by the embodiment of the invention, at least the following technical effects are achieved; the movable iron core unit is provided with the through hole for inserting the movable iron core pin, so that the movable iron core pin is firstly inserted into the through hole in the movable iron core unit, then the movable iron core pin connected with the movable iron core unit is inserted into the limiting part on the contact support, the assembly of the movable iron core unit and the contact support is completed, the movable iron core unit and the contact support are completely fixed, the assembly relation between the movable iron core unit provided with the movable iron core pin and the contact support is simple, the insertion assembly of the movable iron core unit and the contact support can be easily completed by hands, the assembly time can be saved, and the production cost is reduced.

According to some embodiments of the invention, the movable core pin is provided with a tilting structure for being matched and clamped with the limiting part. The tilting structure arranged on the movable iron core pin can enable the movable iron core pin to move more smoothly when being inserted into the limiting part.

According to some embodiments of the present invention, the tilting structure includes a first tilting structure and a second tilting structure, the limiting portion includes a first limiting portion and a second limiting portion, the first tilting structure is in fit clamping connection with the first limiting portion, and the second tilting structure is in fit clamping connection with the second limiting portion. The cooperation of perk structure and spacing portion can make moving core round pin insert spacing in-process, and the both ends of moving core round pin remove equally smoothly.

According to some embodiments of the invention, the moving core pin is provided with a protrusion in the middle for abutting the moving core unit. The protruding part can be abutted against the movable iron core unit after the movable iron core pin is inserted into the movable iron core unit, so that the movable iron core pin and the movable iron core unit are more tightly and stably connected.

According to some embodiments of the invention, the protrusion is provided in an arc-shaped structure, which is more elastic and flexible than other structures.

According to some embodiments of the invention, the contact support is provided with a self-locking back-off, and the movable iron core unit is provided with a groove for being clamped with the self-locking back-off in a matching manner. The self-locking back-off on the contact support is matched with the groove on the movable iron core unit to form self-locking, so that the stable matching between the movable iron core and the contact support in the working process of the alternating current contactor is effectively ensured.

According to some embodiments of the present invention, the stopper portion is provided with a chamfer for guiding an insertion position of the moving core pin when a positional deviation occurs in the insertion-fitting of the moving core pin with the stopper portion. The chamfer arranged on the limiting part can guide the insertion position of the moving core pin, so that the insertion position of the moving core pin in the limiting part is more accurate and the moving core pin is more convenient to insert.

According to some embodiments of the present invention, the chamfer includes a first chamfer for guiding an insertion position of the moving core pin in a first direction, the first chamfer being provided at one end of a stopper portion.

According to some embodiments of the invention, the chamfer further comprises a second chamfer for guiding the insertion position of the moving core pin in a second direction, the second chamfer being disposed on both left and right sides of the stopper portion.

According to some embodiments of the invention, the contact support is provided with a boss for limiting and guiding the movable iron core unit. Set up in the boss of contact carrier and can utilize the fit-up gap between movable core unit and the contact carrier, effective restriction moves the rotation that the iron core wound vertical direction to guarantee the effective electromagnetic action area between the sound iron core, when moving the iron core unit and inserting the assembly simultaneously, the boss still has the guide effect, can effectively avoid the assembly deviation.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of an ac contactor according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a movable iron core unit according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an ac contactor provided with no movable core unit assembled according to an embodiment of the present invention;

FIG. 4 is a schematic bottom view of the structure of FIG. 3;

fig. 5 is a schematic view of a partial structure of an ac contactor according to an embodiment of the present invention;

fig. 6 is a partial schematic view of an ac contactor incorporating a plunger unit according to one embodiment of the present invention;

FIG. 7 is a schematic bottom view of the structure of FIG. 6;

FIG. 8 is a cross-sectional view A-A of FIG. 6;

fig. 9 is an enlarged schematic view of a structure at a in fig. 8.

Reference numerals: the contact mechanism comprises a contact spring 101, a moving contact 102, a fixed contact 103, a moving iron core pin 104, a moving iron core unit 105, a fixed iron core unit 106, a coil unit 107, a contact support 110, a limiting part 111, a boss 112, a self-locking reverse buckle 113, a groove 114, a first chamfer 121, a second chamfer 122, a through hole 130, a base 200 and an upper cover 300.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explanation and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Referring to fig. 1, in some embodiments provided by the present invention, an ac contactor includes: the device comprises a contact spring 101, a movable contact 102, a fixed contact 103, a movable iron core pin 104, a movable iron core unit 105, a fixed iron core unit 106, a coil unit 107, a contact support 110, a base 200, an upper cover 300 and the like.

In order to control the attractive force characteristic of the ac contactor within the design range, the movable core unit 105 needs to be completely fixed on the contact support 110, and the guiding fit between the contact support 110 and the upper cover 300 ensures that the pole face of the movable core unit 105 does not dislocate with the stationary core during each movement.

The conventional movable core unit 105 is fixed by first placing the movable core unit 105 into the contact support 110, then inserting the movable core pin 104 into the pin holes of the contact support 110 and the movable core unit 105, and completely fixing the contact support 110 and the movable core unit 105 through the movable core pin 104, but since the movable core pin 104 is an elastic member and has a large elastic force, it is difficult to insert the movable core pin 104 into the pin hole by manual operation during the assembly process, which increases the assembly man-hour and inevitably increases the production cost of the contactor.

Referring to fig. 2 and 3, in order to solve the above problems, the present invention provides an ac contactor including: a moving core pin 104; a contact holder 110, wherein the contact holder 110 is provided with a limiting part 111; the movable iron core unit 105, the movable iron core unit 105 is provided with a through hole 130, and the through hole 130 is used for inserting the movable iron core pin 104; when the moving core pin 104 is inserted into and engaged with the through hole 130, the moving core pin 104 is used for being clamped in the limiting portion 111.

It should be noted that the concrete assembling manner of the movable iron core unit 105 is as follows: firstly, the movable iron core pin 104 is inserted into the through hole 130 arranged on the movable iron core unit 105, then the movable iron core pin 104 connected with the movable iron core unit 105 is inserted into the limiting part 111 arranged on the contact support 110, so that the assembly of the movable iron core unit 105 and the contact support 110 is completed, the movable iron core unit 105 and the contact support 110 are completely fixed, the assembly relation between the movable iron core unit 105 provided with the movable iron core pin 104 and the contact support 110 is simple, the insertion assembly of the movable iron core unit 105 and the contact support 110 can be easily completed by hands, the assembly working hours can be saved, and the production cost is reduced.

It should be noted that the through hole 130 may be disposed at any position on the side of the moving iron core unit 105, and the shape of the through hole 130 corresponds to the shape of the moving iron core pin 104, and when the shape of the through hole 130 corresponds to the shape of the moving iron core pin 104, the connection between the moving iron core pin 104 and the moving iron core unit 105 can be tight and stable.

In some embodiments of the present invention, the moving core pin 104 is provided with a tilting structure for engaging with the limiting portion 111 in a matching manner, the tilting structure is that the end of the moving core pin 104 is bent upward by a certain angle, and after the end is bent upward by a certain angle, the bottom of the moving core pin will form an arc surface, and the arc surface formed at the bottom can make the moving core pin 104 move more smoothly when being inserted into the limiting portion 111.

In some embodiments of the present invention, the tilting structure includes a first tilting structure and a second tilting structure, and the limiting portion 111 includes a first limiting portion and a second limiting portion, wherein the first tilting structure is in fit and joint with the first limiting portion, and the second tilting structure is in fit and joint with the second limiting portion. The two ends of the moving iron core pin 104 are provided with the tilting structures, so that the moving iron core pin 104 can move smoothly in the process of inserting the limiting part 111, and the moving iron core pin 104 is more labor-saving and convenient to insert, thereby reducing the assembly time and further reducing the production cost.

It should be noted that the first tilting structure and the second tilting structure specifically set the end portions of the moving core pin 104 to be bent upward by a certain angle, one is set at the left end and the other is set at the right end, and at this time, the bottoms of the left end and the right end of the moving core pin 104 are both provided with arc surfaces. In addition, the bending angles of the two end tilting structures can be set to be the same or different.

It can be understood that, if the movable core pin 104 is square, two sides thereof can be also set to be tilted structures, and when the sides are set to be tilted structures, the bottom of the sides has an arc surface, so that the movable core pin 104 can be smoother and smoother when being inserted into the movable core unit 105.

Referring to fig. 3, the first limiting portion and the second limiting portion are respectively disposed at the left end and the right end of the bottom of the contact support 110, the two limiting portions 111 are of a groove 114 type and open inwards, and the shape of the groove 114 corresponds to the shape of the moving core pin 104, so that the moving core pin 104 can be conveniently inserted.

It can be understood that the first tilting structure can be matched with the second limiting part, and similarly, the second tilting structure can also be matched with the first limiting part.

Referring to fig. 3, in some embodiments of the present invention, the stopper portion 111 is provided with a chamfer for guiding an insertion position of the moving core pin 104 when a positional deviation occurs in the insertion-fit of the moving core pin 104 with the stopper portion 111. The chamfer arranged on the limiting part 111 can guide the insertion position of the moving core pin 104, so that the insertion position of the moving core pin 104 when inserted into the limiting part 111 is more accurate and the insertion is more convenient.

In some embodiments of the present invention, the chamfer includes a first chamfer 121 and a second chamfer 122, wherein the first chamfer 121 is disposed at an end of the position-limiting portion 111, and the second chamfer 122 is disposed at a side of the position-limiting portion 111, i.e., at a left side of the first position-limiting portion or at a right side of the second position-limiting portion. It is understood that two second chamfers 122 may be provided at both sides of the limiting portion 111. The first chamfer 121 is used for guiding the insertion position of the moving core pin 104 in a first direction above the bottom of the stopper 111 if the insertion position is deviated when the moving core pin 104 is inserted into the stopper 111; the second chamfer 122 is effective to guide the inserted position of the movable core pin 104 in a second direction, which is left or right with respect to the side surface of the stopper portion 111, when the inserted position of the movable core pin 104 is shifted to the left or right when the movable core pin 104 is inserted into the stopper portion 111, that is, the inserted position of the movable core pin 104 is shifted to the left by the second chamfer 122 to be guided to the right, and the inserted position is shifted to the right by the second chamfer 122 to be guided to the left. The arrangement of the first chamfer 121 and the second chamfer 122 can allow the movable core unit 105 to have a certain position error relative to the insertion of the limiting part 111 in the assembling process, and the position error can be reduced to the minimum by the first chamfer 121 and the second chamfer 122 through the guiding action, so that the effect of simpler and more convenient assembling of the movable core unit 105 is achieved. Meanwhile, the simple and convenient fixed mounting structure can reduce the assembly time, thereby reducing the production cost.

Preferably, in some embodiments of the present invention, the first chamfer 121 is sized at 20 ° x2.4mm, and the first chamfer 121 is sized at 20 ° x1.7 mm.

It will be appreciated that the size and number of the chamfers may be adjusted accordingly to suit the application or manufacturing requirements.

In some embodiments of the present invention, the moving core pin 104 is provided with a boss in the middle for abutting the moving core unit 105. The protruding portion can abut against the movable iron core unit 105 after the movable iron core pin 104 is inserted into the movable iron core unit 105, so that the movable iron core pin 104 and the movable iron core unit 105 are connected more tightly and stably.

In some embodiments of the present invention, the protruding portion is configured to be an arc-shaped structure, and the arc-shaped structure has a better elastic deformation effect compared to other structures, and is characterized in that the movable iron core pin 104 has better elasticity and toughness, and the abutting movable iron core unit 105 is more compact and stable.

The projection may have another structure, for example, a square or triangular structure, and the projection needs to be configured to be able to abut against the movable core unit 105.

Referring to fig. 4, in some embodiments of the present invention, the contact support 110 is provided with a self-locking reverse buckle 113 at the bottom, and the movable iron core unit 105 is provided with a groove 114 at the top for being engaged with the self-locking reverse buckle 113. After the movable iron core unit 105 is inserted, the self-locking reverse buckle 113 on the contact support 110 is matched with the groove 114 formed in the top of the movable iron core unit 105 to form self-locking, so that the stable matching between the movable iron core and the contact support 110 in the working process of the alternating current contactor is effectively ensured.

Referring to fig. 2, 7 and 8, it should be noted that the self-locking reverse buckle 113 is disposed on the bottom surface of the contact support 110, and the direction of the self-locking reverse buckle is perpendicular to the assembling direction of the movable core unit 105, and the self-locking reverse buckle is a slope structure in the inserting direction of the movable core unit 105, so as to facilitate the insertion of the movable core unit 105, and the self-locking reverse buckle is a vertical structure in the reverse direction of the inserting direction of the movable core unit 105, and the shape of the groove 114 disposed on the top of the movable core unit 105 corresponds to the shape of the self-locking buckle. After the movable iron core unit 105 is assembled, the vertical structural surface of the self-locking reverse buckle 113 can be matched with the groove 114 arranged at the top of the movable iron core unit 105 to clamp the movable iron core unit 105, so that self-locking is formed, and the movable iron core unit 105 is not easy to slide back and forth.

It should be noted that the number of the self-locking reverse buckles 113 is not limited, and the number of the grooves 114 at least corresponds to the number of the self-locking reverse buckles 113.

In some embodiments of the present invention, the bottom of the contact support 110 is provided with a boss 112 for limiting and guiding the plunger unit 105. The boss 112 arranged at the bottom of the contact support 110 can effectively limit the rotation of the movable iron core around the vertical direction by utilizing the assembly gap between the movable iron core unit 105 and the contact support 110, so that the effective electromagnetic action area between the movable iron core and the static iron core is ensured, and meanwhile, when the movable iron core unit 105 is inserted into the assembly, the boss 112 also has a guiding effect, and the assembly deviation can be effectively avoided.

In some embodiments of the present invention, the boss 112 is square, and the sides of the square boss 112 are straight, so that the guide performance is better, and the movable iron core unit 105 is easier to insert when being assembled.

The boss 112 may also be diamond-shaped, triangular, etc., and the boss 112 with a straight edge has a better guiding property.

In some embodiments of the present invention, there are at least two bosses 112, and the two bosses 112 are symmetrically disposed and located on two sides of the movable iron core unit 105 after the movable iron core unit 105 is assembled, so as to better perform a limiting function.

Referring to fig. 5 and 6, fig. 5 and 6 are partial schematic views of an ac contactor in which the movable core unit 105 is assembled according to the present invention, the movable core unit 105 is vertically assembled with the contact holder 110, and the movable core pin 104 inserted into the movable core unit 105 is clamped with the limiting portion 111, wherein the first tilting structure is clamped with the first limiting portion, and the second tilting structure is clamped with the second limiting portion. Referring to fig. 7, the entire plunger unit 105 is fixed between four square bosses 112. The structure has simple assembly relation, can easily complete the insertion assembly of the movable iron core unit 105 and the contact support 110 by hands, and can save the assembly time, thereby reducing the production cost.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and are not to be construed as limiting the scope of the invention. Any modifications, equivalents and improvements which may occur to those skilled in the art without departing from the scope and spirit of the present invention are intended to be within the scope of the claims.