A multi-directional connector structure for built-in three-phase motor gear reducers
By designing a multi-directional connector structure in the built-in three-phase motor gear reducer, and using a combination of fasteners, rivets, and pins, insertion and welding in different directions are achieved. This solves the mold and cost problems caused by inconsistent connector directions, and reduces the types of parts and development costs.
Patent Information
- Application Number
- CN202522124277.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-30
AI Technical Summary
The different connector orientations of existing built-in gear reducers prevent the use of interchangeable parts, increasing mold and development costs.
Design a multi-directional connector structure for a built-in three-phase motor gear reducer. By setting multiple connectors on the PCB board and using a combination of fasteners, rivets and pins, plug-in and solder connections in different directions can be achieved, all on the same PCB board.
The reduction in the number of parts decreased development and component costs, thereby enhancing competitiveness.
Smart Images

Figure CN224935496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gear reducer technology, specifically a multi-directional connector structure for a built-in three-phase motor gear reducer. Background Technology
[0002] Gear reducers are generally used in low-speed, high-torque transmission equipment. Even ordinary reducers for electric motors use several pairs of gears operating on the same principle to achieve the desired speed reduction. The ratio of the number of teeth on the large and small gears is the transmission ratio. With the continuous development of the reducer industry, more and more companies are using gear reducers.
[0003] Currently, the connector orientations of built-in gear reducers are as follows: downward (basic model), right-side, and left-side. Each orientation requires different component structures, making it impossible to share components. This necessitates the creation of multiple molds, increasing costs. Utility Model Content
[0004] The purpose of this utility model is to provide a multi-directional connector structure for a built-in three-phase motor gear reducer, so as to solve the problem of shortness mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-directional connector structure for a built-in three-phase motor gear reducer, comprising a motor body, a fixing member connected to the surface of the motor body, a PCB board disposed on the surface of the fixing member, and four sets of rectangular connectors opened on the top surface of the PCB board; a socket is disposed on one side of the PCB board, and a set of pins is embedded inside the socket, and each pin can be inserted into the four sets of connectors, thereby making the connectors of the socket located in different directions, thus forming a non-directional connector structure.
[0006] Preferably, the surface of the motor body is provided with a mounting slot, and the inner sidewall of the fastener is integrally injection molded with a locking block, and when the fastener is installed with the motor body, the locking block and the mounting slot are fastened together.
[0007] Preferably, the upper and lower sides of the surface of the fastener are integrally injection molded with rivets, and the upper and lower sides of the surface of the PCB board are provided with rivet holes. When the PCB board and the fastener are installed, the rivet holes and rivets are riveted together to fix them.
[0008] Preferably, the PCB board has seven pin holes on its surface, and each pin hole contains a pin. One end of the pin passes through the pin hole and the fixing piece in sequence and is connected to the coil in the motor body.
[0009] Preferably, the connector is integrated with the PCB board by soldering, and the PCB board and the PIN pins are electrically connected by soldering.
[0010] Compared with existing technologies, the advantages of this invention are as follows: The fixing component of the multi-directional connector structure of the built-in three-phase motor gear reducer is fixed to the motor body housing by interlocking with the mounting slots and blocks. Then, according to the required insertion direction, the pins in the connector are inserted into the corresponding connectors on the PCB board surface. After insertion, the pins are welded to the PCB board to form a single unit. Subsequently, the PCB board is riveted and positioned using riveting holes and rivets. Finally, the coil pins are soldered to the PCB board for conductivity. This invention can open four connectors on the same PCB board, allowing the connectors to be inserted in the desired direction through different connectors. This reduces the number of parts, lowers development and component costs, and increases competitiveness. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the connector facing upwards in this utility model;
[0012] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the exploded structure from the left side of this utility model;
[0014] Figure 4 This is a schematic diagram of the exploded structure from the right side view of this utility model;
[0015] Figure 5 This is a schematic diagram of the right-facing connector structure of this utility model;
[0016] Figure 6 This is a schematic diagram of the connector-facing structure of this utility model;
[0017] Figure 7 This is a schematic diagram of the connector of this utility model facing left.
[0018] In the diagram: 1. Motor body; 11. Mounting slot; 2. Fixing component; 21. Clip; 22. Rivet; 3. PCB board; 31. Rivet hole; 32. Pin hole; 4. Socket; 5. Pin; 6. PIN pin; 7. Connector. Detailed Implementation
[0019] 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, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0020] This utility model provides a structure for a multi-directional connector structure for a built-in three-phase motor gear reducer, as shown in the following figure. Figure 1 as well as Figure 3 As shown, the device includes a motor body 1, a fastener 2 connected to the surface of the motor body 1, an installation slot 11 on the surface of the motor body 1, a locking block 21 integrally injection molded on the inner side wall of the fastener 2, and when the fastener 2 is installed with the motor body 1, the locking block 21 and the installation slot 11 are fastened together. A PCB board 3 is provided on the surface of the fastener 2, and four sets of rectangular connectors 7 are provided on the top surface of the PCB board 3.
[0021] During implementation, the fastener 2 and the housing of the motor body 1 are fixed together by the mounting slot 11 and the locking block 21.
[0022] Furthermore, such as Figure 2 as well as Figure 4 As shown, the upper and lower sides of the surface of the fastener 2 are integrally injection molded with rivets 22, and the upper and lower sides of the surface of the PCB board 3 are provided with rivet holes 31. When the PCB board 3 is installed with the fastener 2, the rivet holes 31 and the rivets 22 are riveted and fixed together. A plug-in seat 4 is provided on one side of the PCB board 3, and a set of pins 5 are embedded inside the plug-in seat 4. The pins 5 can be plugged into four sets of connectors 7, so that the connectors of the plug-in seat 4 are located in different directions, thus forming a non-directional connector structure.
[0023] During implementation, the pins 5 in the connector 4 are inserted into the corresponding connectors 7 on the surface of the PCB board 3. After insertion, the pins 5 and the PCB board 3 are connected as one unit by soldering.
[0024] Furthermore, such as Figure 1 as well as Figure 4As shown, the surface of the PCB board 3 has seven pin holes 32, and the pin holes 32 are provided with pins 6. One end of the pins 6 passes through the pin holes 32 and the fixing piece 2 in sequence and is connected to the coil in the motor body 1. The connector 4 is connected to the PCB board 3 by soldering. The PCB board 3 and the pins 6 are connected by soldering.
[0025] like Figure 1 , Figure 5 , Figure 6 as well as Figure 7 As shown, this utility model sets multiple directional connectors 7 on the PCB board 3, and the connectors 7 can be plugged into the PCB board 3 to make connections. This realizes the function of multi-directional plugging by using a single PCB board, and the circuits are connected by PCB board multilayer board technology, which expands the scope of application.
[0026] Working principle: During use, the fixing part 2 and the housing of the motor body 1 are locked together by the mounting slot 11 and the locking block 21. Then, according to the insertion direction, the pins 5 in the plug socket 4 are inserted into the corresponding plugs 7 on the surface of the PCB board 3. After insertion, the pins 5 and the PCB board 3 are connected as one unit by welding. Then, the PCB board 3 is riveted and positioned by the riveting hole 31 and the riveting nail 22. Finally, the PIN pin of the coil is soldered to the PCB board to make it conductive, and the assembly is completed.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A multi-directional connector structure for a built-in three-phase motor gear reducer, comprising a motor body (1), characterized in that: The surface of the motor body (1) is connected to a fastener (2), and the surface of the fastener (2) is provided with a PCB board (3). The top surface of the PCB board (3) is provided with four sets of rectangular connectors (7). A connector (4) is provided on one side of the PCB board (3), and a set of pins (5) is embedded inside the connector (4). The pins (5) can be inserted into the four sets of connectors (7), so that the connectors of the connector (4) are located in different directions, thus forming a non-directional connector structure.
2. The multi-directional connector structure for a built-in three-phase motor gear reducer according to claim 1, characterized in that: The surface of the motor body (1) is provided with a mounting slot (11), and the inner side wall of the fastener (2) is integrally injection molded with a locking block (21). When the fastener (2) is installed with the motor body (1), the locking block (21) and the mounting slot (11) are fastened together.
3. The multi-directional connector structure for a built-in three-phase motor gear reducer according to claim 1, characterized in that: The fastener (2) has rivets (22) integrally injection molded on both the upper and lower sides of its surface. The PCB board (3) has rivet holes (31) on both the upper and lower sides of its surface. When the PCB board (3) and the fastener (2) are installed, the rivet holes (31) and the rivets (22) are riveted together and fixed.
4. The multi-directional connector structure for a built-in three-phase motor gear reducer according to claim 1, characterized in that: The PCB board (3) has seven pin holes (32) on its surface, and a pin (6) is provided inside the pin hole (32). One end of the pin (6) passes through the pin hole (32) and the fixing piece (2) in sequence and is connected to the coil in the motor body (1).
5. The multi-directional connector structure for a built-in three-phase motor gear reducer according to claim 4, characterized in that: The connector (4) is connected to the PCB board (3) by welding, and the PCB board (3) and the PIN pin (6) are connected by welding.
