A mixed type power signal waterproof connector applied to a brushless motor

Abstract

The utility model discloses a kind of hybrid power signal waterproof connectors applied to brushless motor, including plate end connecting piece, wire end connecting piece and conducting terminal, plate end connecting piece has inserting tube, wire end connecting piece has plug, plate end connecting piece has inserting tube and square head, conducting terminal is worn from the bottom surface of square head;Fixed lug is equipped on the both sides of square head, plate end connecting piece is connected and fixed with circuit board by fixed lug;Reinforcing rib is equipped in the connecting portion of fixed lug and square head.Such plate end side is designed into square head to be more closely adhered with circuit board, and the inserting tube of the other end is designed into sleeve smaller than wire end.Space layout can be optimized in this way, and the influence of structure on the sealing deterioration after combining with shell is reduced.And fixed lug is arranged in plate end connecting portion, and rib body is arranged in the connecting portion between fixed lug and square head, to ensure the connection strength of plate end connecting piece after reducing volume.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection device technology, and in particular to a hybrid power signal waterproof connector mainly used in brushless motors. Background Technology

[0002] Connectors are crucial components for achieving electrical connections, primarily used for transmitting power or electrical signals. In the design of protective covers for motors (such as BLDC brushless variable frequency motors), the currently used board-end connectors, when mating with the motor board, typically have a relatively large size to achieve sufficient structural strength, but this results in shortcomings in matching accuracy and structural reliability. Therefore, there is significant room for miniaturization of these connectors, as simply reducing their size can have a significant negative impact on their structural strength. Utility Model Content

[0003] This invention addresses the shortcomings of existing connectors that are difficult to miniaturize due to the need to maintain sufficient structural strength. It provides a simple and reasonable hybrid power signal waterproof connector for brushless motors that can reduce the size of the connector while maintaining high structural strength.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a hybrid power signal waterproof connector for brushless motors, comprising a board-end connector, a wire-end connector, and conductive terminals. The board-end connector has a plug sleeve, and the wire-end connector has a plug connector. After the board-end connector and the wire-end connector are mated and fixed, the plug connector is inserted into the plug sleeve, and the conductive terminals inside the two are mated to form an electrical connection. A square head with a square structure is provided at the other end of the board-end connector, and the conductive terminals protrude from the bottom surface of the square head on the side for contacting the circuit board. Fixing ears are provided on both sides of the square head, and the board-end connector is connected and fixed to the circuit board by inserting screws into the fixing ears. Reinforcing ribs are provided at the connection between the fixing ears and the square head to increase the connection strength between the fixing ears and the square head.

[0005] Furthermore, the line end connector is also provided with a sleeve, which is fitted over the plug, forming a slot between the plug and the sleeve, into which the plug sleeve of the board end connector is inserted.

[0006] Furthermore, a cutout groove is provided on the bottom surface of the square head on the side used to attach to the circuit board. The cutout groove is recessed into the square head relative to the fixing ear, and the conductive terminal extends out from the cutout groove.

[0007] Furthermore, the reinforcing rib includes a first reinforcing rib, which is disposed on the side of the square head and is connected to both the surface of the fixing ear and the side of the square head to form an integral structure.

[0008] Furthermore, it also includes a second reinforcing rib, which is disposed on the inner side of the fixing ear and the bottom surface of the square head and is connected to the bottom surface of the first reinforcing rib to form an integral structure.

[0009] Furthermore, it also includes a third reinforcing rib, which is located on the inner side of the second reinforcing rib and extends into the hollow groove to connect with the square head to form an integral structure.

[0010] Furthermore, a positioning post is provided in the hollow groove. When the board end connector is fixed to the circuit board, the positioning post is inserted into the positioning hole of the circuit board for pre-positioning.

[0011] Furthermore, the line end connector has a guide groove on the inner wall of the sleeve and a guide rib that matches the guide groove on the outer wall of the insertion cylinder. When the plate end connector and the line end connector are inserted, the guide rib is inserted along the guide groove to guide the insertion process.

[0012] Preferably, the plug-in tube and the sleeve are elliptical structures that fit together, and the plug-in tube fits against the inner wall of the sleeve after being inserted into the slot of the wire end connector.

[0013] This invention designs one side of the board end as a square head to achieve a tighter fit with the circuit board, while the other end's connector is designed as a sleeve smaller than the wire end. This optimizes the spatial layout and reduces the impact of the structure on the reduced sealing performance after assembly with the housing. A (screw) fixing lug is provided at the board end connection, and ribs are provided at the connection between the fixing lug and the square head to ensure the connection strength of the board end connector despite the reduced size. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the plate end connector and the wire end connector of this utility model after they are joined together;

[0015] Figure 2 This is a three-dimensional structural view of the plate end connector and the wire end connector of this utility model after they are joined together from another angle.

[0016] Figure 3 This is a structural diagram of the plate end connector of this utility model;

[0017] Figure 4 This is a structural view of the plate end connector of this utility model from another angle;

[0018] Figure 5 This is a structural diagram of the wire end connector of this utility model.

[0019] In the figure, 1 is the plate end connector, 11 is the square head, 12 is the plug-in sleeve, 13 is the fixing ear, 14 is the guide rib, 15 is the hollow groove, 16 is the first reinforcing rib, 17 is the second reinforcing rib, 18 is the third reinforcing rib, 19 is the positioning post, 2 is the wire end connector, 21 is the sleeve, 22 is the plug connector, 23 is the slot, 24 is the guide groove, and 3 is the conductive terminal. Detailed Implementation

[0020] In this embodiment, refer to Figures 1-5 A hybrid power and signal waterproof connector for brushless motors includes a board-end connector 1 (female), a wire-end connector 2 (male), and conductive terminals 3 (power / signal terminals). The board-end connector 1 has a plug sleeve 12, and the wire-end connector 2 has a plug connector 22. After the board-end connector 1 and the wire-end connector 2 are mated and fixed, the plug connector 22 is inserted into the plug sleeve 12, and the conductive terminals 3 inside both are interlocked to form an electrical connection. A square head 11 with a square structure is provided at the other end of the board-end connector 1. The square structure can better match the shape of the circuit board, making the fixation more stable. The conductive terminals 3 protrude from the bottom surface of the square head 11 on the side for contacting the circuit board, so as to connect with the circuit board. Fixing ears 13 are provided on both sides of the square head 11. The board-end connector 1 is connected and fixed to the circuit board by inserting screws, rivets, fixing posts, etc. into the fixing ears 13. Reinforcing ribs are provided at the connection between the fixing ears 13 and the square head 12 to increase the connection strength between the fixing ears 13 and the square head 11.

[0021] The wire end connector 2 is also provided with a sleeve 21, which is sleeved over the plug 22, forming a slot 23 between the plug 22 and the sleeve 21. The plug tube 12 of the plate end connector 1 is inserted into the slot 23 and is covered by the sleeve 21, thereby achieving a better sealing effect.

[0022] A perforated groove 15 is provided on the bottom surface of the square head 11 on the side for attaching with the circuit board. The perforated groove 15 is recessed into the square head 11 relative to the fixing ear 13, which can avoid instability caused by the middle of the square head 11 being pushed up. The conductive terminal 3 extends out from the perforated groove 15 and connects to the circuit board.

[0023] The reinforcing ribs include a first reinforcing rib 16, a second reinforcing rib 17 and a third reinforcing rib 18. The first reinforcing rib 16 is disposed on the side of the square head 11 and is connected to the surface of the fixing ear 13 and the side of the square head 11 to form an integral structure.

[0024] The second reinforcing rib 17 is disposed on the inner side of the fixing ear 13 and the bottom surface of the square head 11, and is simultaneously connected to the bottom surface of the first reinforcing rib 16 to form an integral structure. The third reinforcing rib 18 is disposed on the inner side of the second reinforcing rib 17, and extends into the hollow groove 15 to connect with the square head 11 to form an integral structure. In this way, the connection strength is increased by multiple reinforcing ribs, and the hollow groove is used to increase the flatness of the connection with the plate end, preventing warping and shaking.

[0025] A positioning post 19 is provided in the hollow groove 15. When the board end connector 1 is fixed to the circuit board, the positioning post 19 is inserted into the positioning hole of the circuit board for pre-positioning, so as to improve the convenience and efficiency of assembly.

[0026] The line end connector 2 has a guide groove 24 on the inner wall of the sleeve 21, and a guide rib 14 matching the guide groove 24 is provided on the outer wall of the insertion tube 12. When the plate end connector 1 and the line end connector 2 are inserted, the guide rib 14 is inserted along the guide groove 24 to guide the insertion process.

[0027] The plug-in sleeve 12 and the sleeve 21 are elliptical structures that fit together. After the plug-in sleeve 12 is inserted into the slot 23 of the wire end connector 2, it fits against the inner wall of the sleeve 21 to reduce the impact of the structure on the poor sealing performance after it is combined with the shell.

[0028] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A hybrid power signal waterproof connector for brushless motors, comprising a board-end connector, a wire-end connector, and conductive terminals, wherein the board-end connector has a plug sleeve, and the wire-end connector has a plug connector, wherein after the board-end connector and the wire-end connector are mated and fixed, the plug connector is inserted into the plug sleeve, and the conductive terminals inside both are mated together to form an electrical connection, characterized in that: At the other end of the board end connector, there is a square head with a square structure. The conductive terminal extends from the bottom surface of the square head on the side that is used to attach to the circuit board. Fixing ears are provided on both sides of the square head to connect and fix the board end connector to the circuit board. Reinforcing ribs are provided at the connection between the fixing ears and the square head to increase the connection strength between the fixing ears and the square head.

2. The hybrid power signal waterproof connector for brushless motors according to claim 1, characterized in that: The wire end connector is also provided with a sleeve, which is fitted over the plug and forms a slot between the plug and the sleeve. The plug sleeve of the board end connector is inserted into this slot.

3. The hybrid power signal waterproof connector for brushless motors according to claim 1, characterized in that: A cutout groove is provided on the bottom side of the square head that is used to attach to the circuit board. The cutout groove is recessed into the square head relative to the fixing ear, and the conductive terminal extends out from the cutout groove.

4. The hybrid power signal waterproof connector for brushless motors according to claim 2, characterized in that: The reinforcing rib includes a first reinforcing rib, which is disposed on the side of the square head and is connected to both the surface of the fixing ear and the side of the square head to form an integral structure.

5. The hybrid power signal waterproof connector for brushless motors according to claim 4, characterized in that: The reinforcing rib also includes a second reinforcing rib, which is disposed on the inner side of the fixing ear and the bottom surface of the square head, and is connected to the bottom surface of the first reinforcing rib to form an integral structure.

6. The hybrid power signal waterproof connector for brushless motors according to claim 5, characterized in that: The reinforcing rib also includes a third reinforcing rib, which is located on the inner side of the second reinforcing rib and extends into the hollow groove to connect with the square head to form an integral structure.

7. The hybrid power signal waterproof connector for brushless motors according to claim 3, characterized in that: Positioning posts are provided in the hollowed-out groove. When the board end connector is fixed to the circuit board, the positioning posts are inserted into the positioning holes of the circuit board for pre-positioning.

8. The hybrid power signal waterproof connector for brushless motors according to claim 2, characterized in that: The line-end connector has a guide groove on the inner wall of the sleeve and a guide rib that matches the guide groove on the outer wall of the insertion cylinder. When the plate-end connector and the line-end connector are inserted, the guide rib is inserted along the guide groove to guide the insertion process.

9. The hybrid power signal waterproof connector for brushless motors according to claim 2 or 8, characterized in that: The plug-in tube and the sleeve are elliptical structures that fit together. After the plug-in tube is inserted into the slot of the wire end connector, it fits against the inner wall of the sleeve.

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