PCB wiring structure and motor

Abstract

The utility model relates to the technical field of motors, and discloses a PCB wiring structure and a motor, comprising a skeleton body installed on a stator core, a PCB installed above an upper skeleton, and a connector installed on the stator core and the PCB. A wire passing groove is formed in the outer side of the framework body, a skirt edge is arranged on the end face in contact with the iron core, an elastic buckle and a contact pin which are matched with the PCB are arranged on the inner side of the framework body, the PCB is provided with a three-phase connector copper bar, and the connector is provided with a contact pin boss and a contact pin matched with the three-phase connector copper bar. According to the utility model, the wiring difficulty is reduced, the wiring efficiency is improved, the structural space is saved, an additional PCB (Printed Circuit Board) is not needed, and the user cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a PCB board wiring structure and a motor. Background Technology

[0002] With the rapid development of industry, motors have always played an indispensable role, with a wide range of applications covering all aspects of production and daily life. However, existing winding lead connection schemes generally adopt direct lead connection and PCB board connection. Direct lead connection usually results in many winding wire ends, requiring manual wire handling, and the connectors are large and difficult to process, making assembly difficult. PCB board connection usually uses large-area PCB boards, leading to high manufacturing costs and thus increasing user costs. Utility Model Content

[0003] In view of the above-mentioned technical deficiencies, the technical problem to be solved by this utility model is to provide a PCB board wiring structure and a motor, which aims to solve the technical problems of high wiring difficulty, low efficiency, high cost and large structural space occupation in the existing motor winding lead terminal wiring scheme.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a PCB board wiring structure, including: a skeleton body installed on the stator core, wherein at least one axially positioned elastic buckle and several pin bosses are provided on the inner side of the skeleton body for fixing the PCB board;

[0005] A connector fixed on the outer housing, and a three-phase connector copper busbar (4) on the PCB board, used to connect the enameled wire lead to the PCB board through the connector.

[0006] Furthermore, the pin protrusion extends from the outside to the inside and houses the pin, which is fixed to the skeleton body and extends upward from the pin protrusion surface without exceeding the end face of the skeleton body.

[0007] Furthermore, the PCB board is provided with holes that cooperate with the pins and elastic clips. When the PCB board is inserted, the PCB board passes through the pins and engages with the elastic clips.

[0008] Furthermore, the three-phase connector copper busbar is in the shape of a "disc" with a gap of not less than 0.3mm.

[0009] Furthermore, it also includes: the outer housing is provided with a clearance groove to facilitate the smooth insertion of connectors;

[0010] The rear cover is connected to the outer housing by laser welding or screws to ensure sealing and structural integrity.

[0011] Furthermore, the connector includes a plug end and a socket end; the stator core is provided with a limiting hole;

[0012] The socket end is provided with a limiting boss, which can be fixed and limited by cooperating with the limiting hole on the stator core;

[0013] The plug is inserted directly into the three-phase connector copper busbar on the PCB board for quick connection.

[0014] Furthermore, the connector also includes copper busbar pins (53) integrally injection molded onto the outer housing.

[0015] Furthermore, the skeleton body is also provided with several winding bodies, each winding body having a winding groove; the winding grooves are equidistantly distributed axially, and their maximum diameter is larger than the coil wire diameter, in order to prevent the coil from falling off.

[0016] Furthermore, the system also includes a skirt at the contact end between the frame body and the stator core to increase the creepage distance between the coil and the stator core.

[0017] An electric motor, including a PCB board wiring structure.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model optimizes the motor winding method, which can effectively ensure the neatness of the wiring, reduce the wiring difficulty, and improve the wiring efficiency. At the same time, the presence of the skirt increases the creepage distance between the coil and the iron core, reducing the risk of motor failure.

[0020] 2. This utility model optimizes the structural space, making it easier to connect the enameled wire lead to the PCB board, while the semi-circular PCB board saves material costs.

[0021] 3. This utility model ensures the sealing performance of the motor and facilitates installation, thereby improving overall assembly efficiency, reducing production costs, and making the motor structure simpler and more reliable. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is an exploded view of the structure of an electric motor provided for an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the skeleton body;

[0025] Figure 3 This is a schematic diagram of the winding structure of the motor;

[0026] Figure 4 This is a schematic diagram of the connector structure.

[0027] Explanation of reference numerals in the attached diagram: 1. Stator core; 11. Limiting hole; 2. Frame body; 21. Winding body; 22. Winding groove; 23. Elastic buckle; 24. Pin boss; 25. Pin; 26. Skirt; 3. PCB board; 31. Pin mating hole; 32. Buckle mating hole; 4. Three-phase connector copper busbar; 5. Connector; 51. Connector plug end; 52. Connector socket end; 521. Limiting boss; 53. Copper busbar pin; 6. Housing; 61. Clearance groove; 7. Back cover. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1 As shown, this embodiment provides a motor that uses a PCB board wiring structure.

[0030] like Figures 1-4 The embodiment shown also provides a PCB board wiring structure, including a frame body 2 mounted on the stator core 1, at least one axially positioned elastic buckle 23 and several pin bosses 24 provided on the inner side of the frame body 2 for fixing the PCB board 3; a connector 5 fixed on the outer housing 6, and a three-phase connector copper busbar 4 externally connected to the PCB board 3 for connecting the enameled wire lead-out to the PCB board 3 through the connector 5.

[0031] Specifically, such as Figure 1 and Figure 2As shown, several winding bodies 21 are formed on the outer periphery of the frame body 2. Winding grooves 22 are provided on the winding bodies 21. The maximum diameter of the winding grooves 22 is larger than the coil wire diameter to prevent the coil from falling off. The grooves are evenly distributed axially. A skirt 26 is provided at the end of the frame body 2 that contacts the stator core 1. The skirt 26 can be glued or screwed on, or it can be formed on the frame body 2 in one piece. At least one axially positioned elastic buckle 23 is provided on the inner side of the frame body 2. The elastic buckle 23 is snapped on the PCB board 3. At the same time, three pin protrusions 24 are provided on the inner side of the frame body 2. The pin protrusions 24 extend from the outside to the inside. Pins 25 are built into the pin protrusions 24. The pins 25 extend upward from the surface of the pin protrusions 24 and do not exceed the end face of the frame body 2. The pins 25 are integrally injection molded on the frame body 2, or they can be fixed on the frame body 2 by tight-fitting glue. Based on the above design, the motor winding method has been optimized, which can effectively ensure the neatness of the wiring, reduce the wiring difficulty, and improve the wiring efficiency. At the same time, the presence of the skirt 26 increases the creepage distance between the coil and the stator core 1, reducing the risk of motor failure.

[0032] like Figure 3 As shown, the PCB board 3 is provided with holes that mate with the pins 25 and the elastic clips 23. When the PCB board 3 is inserted, it passes through the pins 25 and is pushed all the way down to engage with the elastic clips 23. Then, soldering is performed on the contact surface between the pins 25 and the PCB board 3 to make the PCB board 3 more secure. A three-phase connector copper busbar 4 is externally connected to the PCB board 3. The three-phase connector copper busbar 4 is "disc-shaped" and the gap between the copper busbars is not less than 0.3mm. This design optimizes the structural space, makes it easier to connect the enameled wire leads to the PCB board, and the semi-circular PCB board saves material costs.

[0033] like Figure 1 and Figure 4 As shown, connector 5 includes a plug end 51 and a socket end 52. The plug end 51 and socket end 52 can be mated together or integrally formed. The socket end 52 is provided with a limiting boss 521, which is fixed and limited by the limiting hole 11 of the stator core 1. The copper busbar pins 53 in connector 5 are integrally injection molded on the housing 6. When connector 5 is connected, the plug end 51 is directly inserted into the three-phase connector copper busbar 4 of the PCB board 3 to achieve quick connection. After assembling the motor, the motor body is installed in the housing 6. During installation, it can be installed by tight fit or heat fitting process. Connector 5 corresponds to the clearance groove 61 of housing 6 to ensure proper installation and achieve simple sealing performance. After installation, housing 6 and rear cover 7 are connected by laser welding or screws. The advantages of this design are that it simplifies the assembly of the motor structure, has high assembly efficiency, simple and reliable structure, and strong practicality.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PCB board wiring structure, characterized in that, include: A skeleton body (2) is installed on the stator core (1). The inner side of the skeleton body (2) is provided with at least one axially positioned elastic buckle (23) and several pin bosses (24) for fixing the PCB board (3). A connector (5) is fixed on the housing (6), and a three-phase connector copper busbar (4) is externally connected to the PCB board (3) for connecting the enameled wire lead-out to the PCB board (3) through the connector (5).

2. The PCB board wiring structure as described in claim 1, characterized in that, The pin boss (24) extends from the outside to the inside and houses the pin (25). The pin (25) is fixed on the skeleton body (2), extends upward from the pin boss (24) and is not higher than the end face of the skeleton body (2).

3. The PCB board wiring structure as described in claim 2, characterized in that, The PCB board (3) is provided with holes that cooperate with the pins (25) and the elastic buckles (23). When the PCB board (3) is inserted, the PCB board (3) passes through the pins (25) and engages with the elastic buckles (23).

4. The PCB board wiring structure as described in claim 1, characterized in that, The three-phase connector copper busbar (4) is in the shape of a "disc" with a gap of not less than 0.3mm.

5. The PCB board wiring structure as described in claim 1, characterized in that, Also includes: The housing (6) is provided with a clearance groove (61) to facilitate the smooth connection of the connector (5); The rear cover (7) is connected to the housing (6) by laser welding or screws to ensure sealing and structural integrity.

6. The PCB board wiring structure as described in claim 1, characterized in that, The connector (5) includes a plug end (51) and a socket end (52); the stator core is provided with a limiting hole (11); Among them, the socket end (52) is provided with a limiting boss (521), which can be fixed and limited by cooperating with the limiting hole (11) on the stator core (1); The plug end (51) is directly inserted into the three-phase connector copper busbar (4) of the PCB board (3) to achieve quick connection.

7. A PCB board wiring structure as described in claim 6, characterized in that, The connector (5) also includes copper busbar pins (53) integrally injection molded onto the housing (6).

8. The PCB board wiring structure as described in claim 1, characterized in that, The skeleton body (2) is also provided with a number of winding bodies (21), and the winding bodies (21) are provided with winding grooves (22); the winding grooves (22) are equidistantly distributed in the axial direction, and their maximum diameter is greater than the coil wire diameter, in order to prevent the coil from falling off.

9. A PCB board wiring structure as described in claim 3, characterized in that, It also includes a skirt (26) at the contact end between the frame body (2) and the stator core (1) to increase the creepage distance between the coil and the stator core (1).

10. An electric motor, characterized in that, The PCB board wiring structure described in any one of claims 1 to 9 is adopted.

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