CN110504779B

CN110504779B - Motor wiring structure

Info

Publication number: CN110504779B
Application number: CN201810479662.XA
Authority: CN
Inventors: 柏长升; 白建东; 姚沣华; 张长春; 娄杰民
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2018-05-18
Filing date: 2018-05-18
Publication date: 2021-09-14
Anticipated expiration: 2038-05-18
Also published as: CN110504779A

Abstract

The invention discloses a motor wiring structure which is used for connecting a stator coil of a motor with an external power supply lead, wherein the motor comprises a motor body, the wiring structure comprises a PCB (printed circuit board), the end part of the stator coil and the power supply lead are both connected to the PCB, and the PCB is connected with the motor body. Realize the electricity between stator coil and the external power supply wire through setting up the PCB board in this application and be connected, the PCB board is connected with motor body, can improve production efficiency greatly when guaranteeing that the power supply wire is connected stably, practices thrift operating time and manufacturing cost.

Description

Motor wiring structure

Technical Field

The invention relates to the technical field of motors, in particular to a motor wiring structure.

Background

The connection of an electrode and a power supply lead is mostly realized by adopting a welding lead or a wiring terminal in the existing synchronous motor wiring, and the mode of directly welding the lead is inconvenient to operate, time-consuming, labor-consuming and high in labor cost; the connection of the wiring terminal is unstable, and the hidden trouble of falling is generated.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a motor connecting structure which facilitates installation operation and can improve operation efficiency while achieving stable connection.

In order to achieve the above purpose, on one hand, the invention adopts the following technical scheme:

a motor wiring structure for connection between a stator coil of a motor and an external power supply lead, the motor including a motor body, the wiring structure including a PCB board to which both an end portion of the stator coil and the power supply lead are connected, the PCB board being connected with the motor body.

Preferably, the ends of the stator coils are soldered to the PCB board, and/or the power supply lead is soldered to the PCB board.

Preferably, the motor body includes a stator wire spool, and the PCB board is snap-fitted to the stator wire spool.

Preferably, a positioning structure and a mounting structure are arranged on the stator wire spool, wherein the positioning structure is used for positioning the PCB, and the mounting structure is used for mounting the PCB.

Preferably, the positioning structure includes a positioning column or a positioning hole disposed on the stator wire spool, the PCB board is provided with a positioning hole or a positioning column capable of being matched with the positioning column or the positioning hole, and the positioning column or the positioning hole is asymmetrically disposed with respect to a matching area of the PCB board and the stator wire spool.

Preferably, the mounting structure comprises an upper mounting portion and/or a lower mounting portion, wherein,

the upper mounting part comprises a mounting rack, a limiting groove is formed in the mounting rack, and one part of the PCB can be clamped into the limiting groove so as to limit the PCB in the circumferential direction of the stator wire spool;

the lower mounting part comprises a first clamping pin formed at the lower part of the stator wire spool and used for being clamped with the PCB.

Preferably, the first clamping feet comprise two oppositely arranged clamping feet, a groove is formed in the stator wire spool, the two first clamping feet are arranged in the groove and extend in the direction of the axis far away from the stator wire spool from the groove bottom of the groove, clamping jaws are arranged at the free ends of the two first clamping feet, and each clamping jaw on the first clamping foot extends in the direction of the other first clamping foot.

Preferably, an end surface of the pawl on a radially outer side of the stator wire spool includes a slope configured to slope from a position distant from an axis of the stator wire spool to a position close to the axis of the stator wire spool in a direction from a free end of the first tang on which the pawl is located to a free end of the other first tang.

Preferably, the motor connecting structure further comprises a protective cover, wherein the protective cover is arranged on the outer side of the PCB and used for protecting the PCB.

Preferably, the protective cover comprises a cover body,

a first positioning structure is arranged on one side, close to the PCB, of the cover body, a second positioning structure is arranged on the stator wire spool, and the protective cover is positioned on the stator wire spool through the matching of the first positioning structure and the second positioning structure; and/or the presence of a gas in the gas,

and a clamping structure is arranged on the lower side of the cover body and can be clamped on the stator wire spool.

Preferably, the first positioning structure comprises positioning columns, the second positioning structure comprises positioning holes formed on the stator wire spool, the positioning holes are formed on the mounting structure, and the positioning holes are arranged on the mounting structure in a left-right symmetrical mode;

the clamping structure comprises two second clamping pins, and in an assembling state, the two second clamping pins are respectively arranged on two sides, located on the circumferential direction of the stator wire spool, of the first clamping pin and matched with the stator wire spool where the side wall of the groove is located.

Preferably, a clamping plate is arranged at the upper end of the cover body, the clamping plate extends from the cover body to a direction close to the axis of the stator wire spool, and in an assembled state, the lower surface of the clamping plate abuts against the upper end of the stator wire spool.

Preferably, a portion of the power supply lead adjacent to the stator wire spool is disposed between the PCB board and the protective cover.

According to the motor wiring structure provided by the invention, the electrical connection between the stator coil and the external power supply lead is realized by arranging the PCB, and the PCB is connected with the motor body, so that the problems that the wiring is not easy to fix and the operation is inconvenient when the end part of the stator coil and the end part of the power supply lead are directly welded are solved, the connecting position of the end part of the stator coil can be adjusted, and the position easy to operate is selected for connection.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a motor wiring structure provided by the invention (a protective cover is not arranged);

fig. 2 is a schematic structural view illustrating a stator wire spool and a mounting structure provided in the present invention;

FIG. 3 is a schematic diagram of the PCB and the power supply lead connection provided by the present invention;

fig. 4 is a schematic structural view illustrating a motor wiring structure provided by the present invention in an assembled state;

fig. 5 shows a schematic structural diagram of the protective cover provided by the present invention.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in order to avoid obscuring the nature of the present invention, well-known methods, procedures, and components have not been described in detail.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1-2, the motor includes a motor body 1, the motor body 1 includes a motor stator 11 and a motor rotor (not shown in the figure), the motor stator 11 includes a stator wire spool 111 and a stator coil 112, the stator coil is disposed on the stator wire spool 111, and the motor wiring structure provided by the present application is used for connecting the stator coil 112 of the motor with an external power supply lead 2. The motor wiring structure in the present application is particularly suitable for connection between a stator coil of a synchronous motor and an external power supply wire. The wiring structure comprises a PCB 3, the end of the stator coil 112 and the end of the power supply lead 2 are both connected to the PCB 3, the PCB 3 is connected to the motor body 1, and the PCB 3 is preferably snap-fitted to the motor body 1, for example, to the stator winding disc 111 or other parts of the motor body 1. Preferably snap-fit to the stator wire spool 111 to facilitate connection to the ends of the stator coil 112. When assembling, the end of the power conducting wire 2 may be connected to the PCB 3 in advance, then the PCB 3 is clamped to the motor body 1, and then the end of the stator coil 112 is connected to the PCB 3, thereby completing the electrical connection between the motor stator 11 and the external power conducting wire 2. When this kind of structure had avoided direct welding between the tip of stator coil and the tip of power wire, it is difficult fixed between the wiring, the inconvenient problem of operation, can also adjust the hookup location of the tip of stator coil 112, select the position of easy operation to connect, owing to can connect power wire 2 and PCB board in advance, can improve production efficiency greatly when guaranteeing that the power wire connects stably simultaneously, saving operating time and processing manufacturing cost.

Preferably, the ends of the stator coils 112 are soldered to the PCB board 3, and the power supply lead 2 is also soldered to the PCB board 3. The stator coil 112 and the connection between the power supply lead 2 and the PCB 3 are more firmly fixed by welding, further improving the stability of the connection.

As shown in fig. 2, in a preferred embodiment, a positioning structure 4 and a mounting structure 5 are disposed on the stator winding disc 111, wherein the positioning structure 4 is used for positioning the PCB 3, and the mounting structure 5 is used for mounting the PCB 3. Set up location structure 4 and mounting structure 5 simultaneously, can fix a position when installing PCB board 3, can simplify the installation, provide work efficiency.

In a preferred embodiment, the positioning structure 4 includes positioning posts 41 or positioning holes (in the embodiment shown in fig. 2, positioning posts 41 are disposed on the stator winding disc 111), positioning holes 42 (see fig. 3) or positioning posts capable of being matched with the positioning posts 41 or positioning holes are disposed on the PCB 3, and the positioning posts 41 are asymmetrically disposed with respect to the matching area of the PCB 3 and the stator winding disc 111, and in the embodiment shown in fig. 1, the positioning posts 41 and the positioning holes 42 are disposed on one side of the matching area and are disposed in only one group, so that the matching of the positioning posts 41 and the positioning holes 42 can achieve positioning and simultaneously form a fool-proof structure, prevent the PCB 3 from being mounted on the stator winding disc 111 in a reversed or wrong manner, and further improve operation efficiency.

In a preferred embodiment, the mounting structure 5 includes an upper mounting portion 51 and a lower mounting portion 52 for mounting the upper and lower portions of the PCB board, respectively. The upper mounting part 51 comprises a mounting bracket 511, a limiting groove 5111 is formed in the mounting bracket 511, and a part of the PCB 3 can be clamped into the limiting groove 5111, so that the PCB 3 is limited in the circumferential direction of the stator winding disc 111, and the PCB 3 cannot move in the circumferential direction of the stator winding disc 111; the lower mounting portion 52 includes a first locking leg 521 formed at a lower portion of the stator wire spool 111, and is used for being locked with the PCB 3. Specifically, the first clamping leg 521 includes two clamping legs which are oppositely arranged, in order to facilitate the arrangement of the first clamping leg 521, a groove 522 is provided on the stator winding disc 111, the two first clamping legs 521 are arranged in the groove 522 and extend from the groove bottom of the groove 522 to a direction away from the axis of the stator winding disc 111, a pawl 5211 is provided at the free end of the two first clamping legs 521, and the pawl 5211 on each first clamping leg 521 extends toward the direction of the other first clamping leg 521.

Preferably, an end surface of the pawl 5211 positioned radially outward of the stator coil 111 includes a sloped surface 5212, and the sloped surface 5212 is configured to slope in a direction from a free end of the first prong 521 where the pawl 5211 is positioned to a free end of the other first prong 521, from a position away from the axis of the stator coil 111 to a position close to the axis of the stator coil 111. When the PCB 3 is assembled, the force is applied inwards from the outer side of the first clamping leg 521, so that the PCB 3 is clamped between the two first clamping legs 521, and the inclined surface 5212 is convenient for the PCB 3 to be clamped, so that the clamping of the PCB 3 is easier and more labor-saving.

As shown in fig. 4-5, in a preferred embodiment, the motor connection structure further includes a protection cover 6, the protection cover 6 is disposed outside the PCB 3 for protecting the PCB 3, and the protection cover 6 can provide insulation protection for the PCB 3 on one hand, so as to prevent the PCB 3 from being electrically connected to the outside and affecting the reliability of the motor, and also provide connection protection for the PCB 3 to prevent the PCB 3 from falling off from the motor body 1 and affecting the reliability of the power connection.

As shown in fig. 5, the protection cover 6 preferably includes a cover body 61 for providing protection to the PCB board 3. A first positioning structure 62 is disposed on a side of the cover body 61 close to the PCB board 3, a second positioning structure 1112 (see fig. 1) is disposed on the stator wire spool 111, and the protective cover 6 is positioned on the stator wire spool 111 by cooperation of the first positioning structure 62 and the second positioning structure 1112. Preferably, an engaging structure 63 is provided on a lower side of the cover body 61, and the engaging structure 63 is engageable with the stator coil 111 to fix the protective cover 6.

In a preferred embodiment, the first positioning structure 62 is a positioning post, and the second positioning structure 1112 is a positioning hole formed on the stator winding disc 111, and preferably, the positioning hole is formed on the mounting structure 5 to facilitate machining of the positioning hole. Further preferably, the positioning holes are symmetrically arranged on the mounting structure 5 from left to right, so that the protection cover 6 can be positioned more accurately and stably. The engaging structure 63 includes two second engaging legs 631, the second engaging legs 631 are disposed, and in an assembled state, the two second engaging legs 631 are disposed on two circumferential sides of the stator wire spool 111 on the first engaging legs 521, and are engaged with the stator wire spool 111 at the side wall of the groove 522. For example, the second latch 631 is engaged with the bottom surface of the stator winding disc 111 where the side wall of the groove 522 is located, so that the PCB 3 can be better protected.

Preferably, the cover body 61 is provided at an upper end thereof with a catch plate 64, the catch plate 64 extends from the cover body 61 in a direction close to the axis of the stator coil 111, and a lower surface of the catch plate 64 abuts against the upper end of the stator coil 111 in an assembled state. This makes it possible to achieve a stable mounting of the protective cover 6.

Preferably, a portion of the power supply lead 2 adjacent to the stator wire spool 111 is disposed between the PCB board 3 and the protective cover 6. Thus, the power lead 2 can be protected to a certain extent, and the connection between the power lead 2 and the PCB 3 is more stable.

According to the motor wiring structure provided by the invention, the electrical connection between the stator coil and the external power supply lead is realized by arranging the PCB, the PCB is clamped on the motor body, the problems that the wiring is not easy to fix and the operation is inconvenient when the end part of the stator coil and the end part of the power supply lead are directly welded are solved, the connecting position of the end part of the stator coil can be adjusted, and the position easy to operate is selected for connection.

Those skilled in the art will readily appreciate that the above-described preferred embodiments may be freely combined, superimposed, without conflict.

It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.

Claims

1. A motor wiring structure for connection between a stator coil of a motor and an external power supply lead, the motor including a motor body, characterized in that the wiring structure includes a PCB board to which both an end of the stator coil and the power supply lead are connected, the PCB board being connected to the motor body;

wherein, the stator wire reel is provided with mounting structure, mounting structure is used for the installation the PCB board, mounting structure includes installation department down, the installation department is including forming first calorie of foot of stator wire reel lower part, first calorie of foot is including two of relative setting be provided with the recess on the stator wire reel, two first calorie of foot sets up in the recess, and by the tank bottom of recess is to keeping away from extend in the direction of the axis of stator wire reel, be provided with the jack catch at the free end of two first calorie of feet, every on the first calorie of foot the jack catch extends towards the direction at another one first calorie of foot place.

2. The motor wiring structure according to claim 1, wherein an end of the stator coil is soldered to the PCB board, and/or the power supply wire is soldered to the PCB board.

3. The motor wiring structure of claim 1, wherein the motor body includes a stator spool, and the PCB board is snap-fitted to the stator spool.

4. The motor wiring structure according to claim 3, wherein a positioning structure is further provided on the stator wire spool, wherein the positioning structure is used to position the PCB.

5. The motor wiring structure according to claim 4, wherein the positioning structure comprises positioning posts or positioning holes provided on the stator wire spool, positioning holes or positioning posts capable of being matched with the positioning posts or positioning holes are provided on the PCB, and the positioning posts or positioning holes are asymmetrically arranged relative to a matching area of the PCB and the stator wire spool.

6. The motor wiring structure of claim 4, wherein the mounting structure further comprises an upper mounting portion, the upper mounting portion comprises a mounting frame, a limiting groove is formed in the mounting frame, and a part of the PCB can be clamped into the limiting groove, so that the PCB is limited in the circumferential direction of the stator wire spool.

7. The motor wiring structure according to claim 1, wherein an end surface of the pawl located radially outside the stator wire spool includes a slope configured to slope in a direction from a free end of a first tang on which the pawl is located to a free end of another first tang from a position distant from an axis of the stator wire spool to a position close to the axis of the stator wire spool.

8. The motor wiring structure according to claim 1, wherein the motor connecting structure further comprises a protective cover provided at an outer side of the PCB for providing protection to the PCB.

9. The motor wiring structure according to claim 8, wherein the protective cover includes a cover body,

10. The motor wiring structure according to claim 9,

the first positioning structure comprises positioning columns, the second positioning structure comprises positioning holes formed in the stator wire spool, the positioning holes are formed in the mounting structure, and the positioning holes are arranged on the mounting structure in a left-right symmetrical mode;

11. The motor wiring structure according to claim 9, wherein a catch plate is provided at an upper end of the cover body, the catch plate extending from the cover body in a direction close to an axis of the stator spool, and a lower surface of the catch plate abuts against the upper end of the stator spool in an assembled state.

12. The motor wiring structure according to any one of claims 8 to 11, wherein a portion of the power supply lead wire near the stator spool is disposed between the PCB board and the protective cover.