CN217508459U

CN217508459U - Motor end cover assembly and motor

Info

Publication number: CN217508459U
Application number: CN202221652848.9U
Authority: CN
Inventors: 王硕; 李义兵
Original assignee: Baoding R&D Branch of Honeycomb Transmission System Jiangsu Co Ltd
Current assignee: Baoding R&D Branch of Honeycomb Transmission System Jiangsu Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-09-27
Anticipated expiration: 2032-06-28

Abstract

The utility model provides a motor end cover assembly and a motor, belonging to the technical field of motors and comprising an end cover main body, a three-phase copper bar, a first wiring terminal group and a second wiring terminal group; the end cover main body is provided with an accommodating cavity; the peripheral surface of the end cover main body is provided with a connecting part; the three-phase copper bar, the first wiring terminal group and the second wiring terminal group are fixedly arranged in the accommodating cavity, the contact ends of the copper bar, the first contact ends and the second contact ends respectively penetrate through the accommodating cavity, the first contact ends are distributed in one row, and the plurality of second contact ends are distributed in the other row; the copper bar connecting end, the first connecting end and the second connecting end respectively penetrate through the accommodating cavity and are located in the interface cavity, the first connecting end and the copper bar connecting end are distributed in a row, and the plurality of second connecting ends are distributed in another row. The utility model can meet the plugging requirement with the controller; the wiring terminal is divided into the first wiring terminal group and the second wiring terminal group, so that the structure is simplified, only two types of dies need to be designed, and the manufacturing cost is reduced.

Description

Motor end cover assembly and motor

Technical Field

The utility model belongs to the technical field of the motor, more specifically say, relate to a motor end cover subassembly and motor.

Background

The motor end cover is used for electrically connecting the motor stator with the controller, so that a plurality of wiring terminals, the three-phase copper bar and the circuit board are required to be arranged in the end cover, the circuit board is electrically connected with one ends of the wiring terminals, and the controller is connected with the other ends of the wiring terminals and the end of the three-phase copper bar, so that the transmission of signals between the motor and the controller is realized.

In the prior art, for the grafting of adaptation and controller, the tip of a plurality of binding post is two rows about and roughly evenly distributed with the tip of three-phase copper bar, as shown in fig. 1, because a plurality of binding post are inside to be the setting side by side at the end cover, and the inside space of end cover is limited, if will satisfy the grafting demand with the controller, then need design each binding post's structure respectively to develop different moulds, lead to binding post structure complicacy, and the cost of manufacture is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor end cover subassembly and motor aims at solving each binding post's that exists among the prior art technical problem that the structure is different, the cost of manufacture is high.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a motor end cap assembly comprising:

the end cover comprises an end cover main body and a connecting piece, wherein the end cover main body is provided with an accommodating cavity; the outer peripheral surface of the end cover main body is provided with a connecting part, and the connecting part is provided with a connecting cavity with an opening facing the outside of the end cover main body;

the three-phase copper bar is fixedly arranged in the accommodating cavity; the three-phase copper bar is provided with a copper bar contact end and a copper bar connecting end;

the first wiring terminal group is fixedly arranged in the accommodating cavity; the first wiring terminal group comprises at least one first wiring terminal, and the first wiring terminal is provided with a first contact end and a first connection end;

the second wiring terminal group is fixedly arranged in the accommodating cavity; the second wiring terminal group comprises a plurality of second wiring terminals, and each second wiring terminal is provided with a second contact end and a second connecting end;

the copper bar contact ends, the first contact ends and the second contact ends respectively penetrate through the end cover main body and extend out of the accommodating cavity, at least one first contact end of the first wiring terminal group is distributed in a row, and a plurality of second contact ends of the second wiring terminal group are distributed in another row;

the copper bar connecting end, the first connecting end and the second connecting end respectively penetrate through the accommodating cavity and are positioned in the interface cavity, at least one first connecting end of the first wiring terminal group and the copper bar connecting end are distributed in a row, and the plurality of second connecting ends of the second wiring terminal group are distributed in another row.

In one possible implementation manner, the first connection terminal is a zigzag long strip structure, and includes a first extension portion, a second extension portion, and a first bending portion connecting the first extension portion and the second extension portion; the end part of the first extension part is provided with the first contact end, and the end part of the second extension part is the first connection end;

the second connecting terminal is also of a Z-shaped long strip structure and comprises a third extending part, a fourth extending part and a second bending part for connecting the third extending part and the fourth extending part; the end part of the third extending part is provided with the second contact end, and the end part of the fourth extending part is the second connecting end;

the first extending portion and the third extending portions are arranged in the accommodating cavity side by side, and the bending height of the first bending portion is larger than that of the second bending portion.

In some embodiments, the first set of wire terminals includes one of the first wire terminals, and the second set of wire terminals includes five of the second wire terminals;

the second extending part of the first connecting terminal and the fourth extending part of the second connecting terminal, which is located at the edge, are arranged in a row.

In some embodiments, the first bending portion has an inverted Z-shaped structure.

In one possible implementation, the end cap body includes:

a housing; one end face of the shell is an opening face; the interface part is arranged on the outer peripheral surface of the shell; and

the sealing cover is fixedly and hermetically arranged in the inner cavity of the shell; the outer peripheral wall of the sealing cover is connected with the inner peripheral wall of the shell;

the end face of the sealing cover facing the bottom wall of the shell, the bottom wall of the shell and the inner peripheral wall of the shell form the accommodating cavity in a surrounding mode; and an object placing cavity is formed by the end face of the sealing cover facing the opening surface of the shell and the inner peripheral wall of the shell in a surrounding manner.

In some embodiments, the motor end cap assembly further comprises:

the circuit board is arranged in the object placing cavity; the circuit board is provided with a first plug hole in plug-in fit with the first contact end and a second plug hole in plug-in fit with the second contact end.

In some embodiments, a plurality of metal protruding surfaces are disposed on an end surface of the circuit board facing the cover, a chip is disposed on an end surface of the circuit board facing away from the cover, and the plurality of metal protruding surfaces are electrically connected to the chip.

In some embodiments, a boss is arranged on an end face of the cover facing the opening face of the shell, and the boss is used for abutting against the circuit board; the boss reaches all seted up on the diapire of casing with a plurality of the hole of dodging of metal raised face one-to-one.

In some embodiments, the cover is provided with a positioning column, or the accommodating cavity is provided with a positioning column penetrating through the cover, the circuit board is provided with a positioning hole, and the positioning column is in inserted fit with the positioning hole.

The utility model provides a motor end cover subassembly's beneficial effect lies in: compared with the prior art, the motor end cover assembly has the advantages that the first connecting ends of the first wiring terminal groups and the copper bar connecting ends of the three-phase copper bar are distributed in one row, and the plurality of second connecting ends of the second wiring terminal groups are distributed in the other row, so that the plugging requirement of the motor end cover assembly with a controller is met; the wiring terminal is divided into the first wiring terminal group and the second wiring terminal group, only two types of wiring terminals are provided, the structure is simplified, only two types of dies are needed to be designed, and the manufacturing cost is reduced.

The utility model also provides a motor, including foretell motor end cover subassembly.

The utility model provides a motor owing to adopted foretell motor end cover subassembly, can satisfy the grafting demand with the controller, and simplified the binding post structure, reduced the cost of manufacture.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a diagram of an assembly position relation to be satisfied by the end portions of a plurality of wiring terminals of a motor end cover and the end portions of three-phase copper bars in the prior art;

fig. 2 is a schematic structural diagram of a motor end cover assembly provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the motor end cover assembly circuit board removal provided by the embodiment of the present invention;

fig. 4 is a position relationship diagram of a first connection terminal group and a second connection terminal group of a motor end cover assembly provided by the embodiment of the present invention;

fig. 5 is a position relationship diagram of a first connection terminal group, a second connection terminal group and a three-phase copper bar of the motor end cover assembly provided by the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a circuit board of a motor end cover assembly according to an embodiment of the present invention.

In the figure: 1. an end cap body; 11. a housing; 12. sealing the cover; 13. a storage cavity; 14. an interface section; 141. a mouth receiving cavity; 15. a boss; 16. avoiding holes; 17. a positioning column; 2. a three-phase copper bar; 21. a contact end of a copper bar; 22. a copper bar connecting end; 3. a first connection terminal; 31. a first contact end; 32. a first connection end; 33. a first extension portion; 34. a second extension portion; 35. a first bending portion; 4. a second connection terminal; 41. a second contact end; 42. a second connection end; 43. a third extension portion; 44. a fourth extension portion; 45. a second bending portion; 5. a circuit board; 51. a first plug hole; 52. a second plug hole; 53. a metal raised surface; 54. a chip; 55. and (7) positioning the holes.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 2 and 5, the motor end cover assembly of the present invention will now be described. The motor end cover assembly comprises an end cover main body 1, a three-phase copper bar 2, a first wiring terminal group and a second wiring terminal group. The end cover main body 1 is provided with an accommodating cavity; the outer peripheral surface of the end cover main body 1 is provided with a connecting part 14, and the connecting part 14 is provided with a connecting cavity 141 with an opening facing the outside of the end cover main body 1; the three-phase copper bar 2 is fixedly arranged in the accommodating cavity; the three-phase copper bar 2 is provided with a copper bar contact end 21 and a copper bar connecting end 22; the first wiring terminal group is fixedly arranged in the accommodating cavity; the first connection terminal group comprises at least one first connection terminal 3, the first connection terminal 3 has a first contact end 31 and a first connection end 32; the second wiring terminal group is fixedly arranged in the accommodating cavity; the second terminal group includes a plurality of second terminals 4, and the second terminals 4 have second contact ends 41 and second connection ends 42.

The copper bar contact ends 21, the first contact ends 31 and the second contact ends 41 respectively penetrate through the end cover main body 1 and extend out of the accommodating cavity, at least one first contact end 31 of the first wiring terminal group is distributed in a row, and a plurality of second contact ends 41 of the second wiring terminal group are distributed in another row; the first contact end 31 and the second contact end 41 are respectively used for connecting the circuit board 5.

The copper bar connecting end 22, the first connecting end 32 and the second connecting end 42 respectively penetrate through the accommodating cavity and are located in the connecting cavity 141, at least one first connecting end 32 of the first wiring terminal group and the copper bar connecting end 22 are distributed in a row, and the plurality of second connecting ends 42 of the second wiring terminal group are distributed in another row. The copper bar connecting end 22, the first connecting end 32 and the second connecting end 42 are respectively used for being plugged with a controller.

It should be noted that, the end cover main body 1 in this embodiment is made of an insulating material, and the three-phase copper bar 2, the first connection terminal group and the second connection terminal group are all made of a copper material with high conductivity and are all fixed in the accommodating cavity through injection molding. The three-phase copper bar 2 includes three copper bars, that is, the three-phase copper bar 2 has three copper bar connection ends 22 and three copper bar contact ends 21.

In order to isolate the three-phase copper bar 2, the first terminal group and the second terminal group, the accommodating cavity has no opening, and therefore no reference numerals are given to the accommodating cavity in fig. 2 and 3.

In addition, the interface cavity 141 and the accommodating cavity are communicated through a plurality of sockets penetrating through the side wall of the end cover main body 1, the plurality of sockets are in one-to-one correspondence with the copper bar connecting end 22, the at least one first connecting end 32 and the plurality of second connecting ends 42, and the copper bar connecting end 22, the at least one first connecting end 32 and the plurality of second connecting ends 42 respectively penetrate through the corresponding sockets and extend into the interface cavity 141.

In the prior art, for the purpose of inserting the adapter into the controller, the connecting ends of the plurality of connecting terminals and the copper bar connecting ends 22 of the three-phase copper bar 2 are arranged in two rows, and are approximately uniformly distributed, as shown in fig. 1. It should be noted that, the approximately uniform distribution here means that the number of the connecting ends in the upper row and the lower row is equal, or the number of the connecting ends in the upper row and the lower row is different by one.

Compared with the prior art, the utility model provides a motor end cover assembly, first link 32 of first connecting terminal group is one row of distribution with copper bar link 22 of three-phase copper bar 2, a plurality of second links 42 of second connecting terminal group are another row of distribution, wherein, the quantity sum of at least one first link 32 and three copper bar link 22 equals with the quantity sum of a plurality of second links 42, or the quantity sum of at least one first link 32 and three copper bar link 22 differs one with the quantity sum of a plurality of second links 42, thereby satisfy the grafting demand with the controller; the wiring terminal is divided into the first wiring terminal group and the second wiring terminal group, only two types of wiring terminals are provided, the structure is simplified, only two types of dies are needed to be designed, and the manufacturing cost is reduced.

In some embodiments, the first connection terminal 3 and the second connection terminal 4 may adopt the structure shown in fig. 4 and 5, referring to fig. 4 and 5, the first connection terminal 3 is a zigzag-shaped long structure, and includes a first extending portion 33, a second extending portion 34, and a first bending portion 35 connecting the first extending portion 33 and the second extending portion 34; the end of the first extension 33 is provided with a first contact end 31, and the end of the second extension 34 is a first connection end 32. The second connection terminal 4 is also a zigzag elongated structure, and includes a third extending portion 43, a fourth extending portion 44, and a second bending portion 45 connecting the third extending portion 43 and the fourth extending portion 44; the end of the third extension 43 is provided with a second contact end 41, and the end of the fourth extension 44 is a second connection end 42.

The at least one first extending portion 33 and the plurality of third extending portions 43 are disposed side by side in the accommodating cavity, and the bending height of the first bending portion 35 is greater than that of the second bending portion 45.

It should be noted that the first extension 33, the second extension 34, the third extension 43, and the fourth extension 44 are all disposed parallel to the end surface of the end cap body 1, the first contact end 31 is perpendicular to the first extension 33, the second contact end 41 is perpendicular to the third extension 43, and the first contact end 31 and the second contact end 41 are not disposed side by side, as shown in fig. 4. The end of the second extension 34 is chamfered to form a second connection end 42 and the end of the fourth extension 44 is chamfered to form the second connection end 42, as shown in fig. 4.

Because first binding post group and second binding post group all fix in the holding intracavity, specifically, fix in the holding intracavity through moulding plastics, make at least one first extension 33 and a plurality of third extension 43 be and set up side by side in the holding intracavity, can make at least one first extension 33 and a plurality of third extension 43 all mould plastics and fix on the interior terminal surface of end cover main part 1, need not additionally to use other parts again and fix first binding post 3 and second binding post 4, simplified structure and manufacturing process, and can reduce the space in holding chamber, reduce end cover main part 1 and occupy the volume.

In addition, the bending height of the first bending portion 35 is greater than that of the second bending portion 45, and the design requirement that the second extending portion 34 and the fourth extending portion 44 are arranged in two rows can be met.

Specifically, the first terminal group includes one first terminal 3, and the second terminal group includes five second terminals 4; the second extensions 34 of the first terminals 3 are arranged in a row with the fourth extension 44 of one of the second terminals 4 located at the edge.

Preferably, the first bending portion 35 has an inverted Z-shaped structure, and two ends of the inverted Z-shape are respectively connected to the first extending portion 33 and the second extending portion 34.

If the direction parallel to the end face of the end cap body 1 is defined as a first direction and the direction perpendicular to the end face of the end cap body 1 is defined as a second direction, the first bent portion 35 and the second bent portion 45 are both provided to extend in the second direction. The difference is that the second bending portion 45 is a bar shape, and the first bending portion 35 is a laid-down zigzag shape.

The first bent portion 35 is formed in an inverted Z-shape to connect the first extending portion 33 and the second extending portion 34, so that the requirement of arranging the first extending portion 33 and the third extending portion 43 side by side can be satisfied, and the requirement of arranging the second extending portion 34 and the fourth extending portion 44 in a row can be satisfied.

In some embodiments, the end cap body 1 may adopt a structure as shown in fig. 2 and 3, and referring to fig. 2 and 3, the end cap body 1 includes a housing 11 and a cover 12. One end face of the housing 11 is an open face; the interface portion 14 is provided on the outer peripheral surface of the housing 11; the sealing cover 12 is fixedly and hermetically arranged in the inner cavity of the shell 11; the outer peripheral wall of the cover 12 is contiguous with the inner peripheral wall of the housing 11.

The end face of the sealing cover 12 facing the bottom wall of the housing 11, the bottom wall of the housing 11 and the inner peripheral wall of the housing 11 enclose the accommodating cavity; the end face of the cover 12 facing the opening of the housing 11 and the inner peripheral wall of the housing 11 enclose an article-holding cavity 13. That is, the cover 12 divides the inner cavity of the housing 11 into an accommodating chamber and an object placing chamber 13.

Because the first wiring terminal group, the second wiring terminal group and the three-phase copper bar 2 are all electrical connectors, in order to avoid short circuit caused by contact of the first wiring terminal group, the second wiring terminal group and the three-phase copper bar 2 with other metal pieces, the three are fixed in a closed accommodating cavity enclosed by the shell 11 and the sealing cover 12.

The end cover main body 1 comprises a shell 11 and a sealing cover 12, is simple in structure, and can meet the assembly requirements of a first wiring terminal group, a second wiring terminal group and a three-phase copper bar 2.

In some embodiments, the motor end cover assembly further includes a circuit board 5, and the circuit board 5 is disposed in the storage cavity 13; the circuit board 5 is provided with a first insertion hole 51 for insertion and matching with the first contact end 31, and a second insertion hole 52 for insertion and matching with the second contact end 41, as shown in fig. 6.

The circuit board 5 is used for being connected with the first wiring terminal group and the second wiring terminal group, so that the circuit board 5 is electrically connected with the controller, and signal transmission between the motor and the controller is realized.

Specifically, the end surface of the circuit board 5 facing the cover 12 is provided with a plurality of metal protruding surfaces 53, as shown in fig. 6, the end surface of the circuit board 5 facing away from the cover 12 is provided with a chip 54, as shown in fig. 2, the plurality of metal protruding surfaces 53 are electrically connected with the chip 54 for the final program burning.

In some embodiments, a boss 15 is provided on an end surface of the cover 12 facing the opening surface of the housing 11, the boss 15 being used for abutting against the circuit board 5; the bottom walls of the bosses 15 and the shell 11 are respectively provided with avoidance holes 16 corresponding to the plurality of metal convex surfaces 53 one by one.

After the circuit board 5 is assembled to the storage cavity 13, the boss 15 abuts against the circuit board 5 to support the circuit board 5 and prevent the circuit board 5 from being directly attached to the sealing cover 12; the avoiding holes 16 on the bosses 15 and the shell 11 are in one-to-one correspondence with the metal convex surfaces 53, on one hand, the metal rods are used for achieving heat dissipation of the circuit board 5 and the metal convex surfaces 15, on the other hand, after the circuit board 5 is assembled, the metal rods used for program burning sequentially penetrate through the shell 11, the sealing cover 12 and the bosses 15 through the avoiding holes 15, and the metal rods contact the metal convex surfaces 53 on the circuit board 5 to complete burning.

In some embodiments, in order to fix the circuit board 5, the sealing cover 12 is provided with a positioning post 17, or the accommodating cavity is provided with a positioning post 17 penetrating through the sealing cover 12, as shown in fig. 2 and 3, the circuit board 5 is provided with a positioning hole 55, as shown in fig. 6, and the positioning post 17 is inserted into and matched with the positioning hole 55.

When the circuit board 5 is assembled, the positioning hole 55 is aligned with the positioning post 17, and the positioning hole 55 is embedded into the positioning post 17, so as to further increase the positioning performance of the circuit board 5 and improve the stability of the fixing.

Based on the same inventive concept, the embodiment of the application also provides a motor, which comprises the motor end cover assembly.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An electric machine end cap assembly, comprising:

2. The motor end cap assembly of claim 1 wherein said first terminal is a Z-shaped elongated structure including a first extension portion, a second extension portion, and a first bend connecting said first extension portion and said second extension portion; the end part of the first extension part is provided with the first contact end, and the end part of the second extension part is the first connection end;

3. The motor end cap assembly of claim 2 wherein said first terminal set includes one of said first terminals and said second terminal set includes five of said second terminals;

4. The motor end cap assembly of claim 3 wherein the first bend is an inverted Z-shaped configuration.

5. The motor end cap assembly of claim 1, wherein the end cap body comprises:

6. The motor end cap assembly of claim 5, further comprising:

the circuit board is arranged in the object placing cavity; the circuit board is provided with a first plug hole in plug fit with the first contact end and a second plug hole in plug fit with the second contact end.

7. The end cap assembly of claim 6, wherein the end surface of the circuit board facing the cover has a plurality of metal protruding surfaces, the end surface of the circuit board facing away from the cover has a chip, and the plurality of metal protruding surfaces are electrically connected to the chip.

8. The motor end cap assembly of claim 7, wherein a boss is provided on an end face of the cover facing the housing opening face, the boss for abutting against the circuit board; the boss reaches all seted up on the diapire of casing with a plurality of the hole of dodging of metal raised face one-to-one.

9. The motor end cover assembly of claim 6, wherein the sealing cover is provided with a positioning post, or the accommodating cavity is provided with a positioning post penetrating through the sealing cover, the circuit board is provided with a positioning hole, and the positioning post is inserted and matched with the positioning hole.

10. An electrical machine comprising a machine end cap assembly according to any one of claims 1 to 9.