Battery pack high-voltage wiring harness

Abstract

The utility model relates to the field of wire harnesses, in particular to a battery pack high-voltage wire harness, which comprises a connector, a wire harness and a waterproof joint, one end of the wire harness is connected with the connector, and the other end of the wire harness is provided with a connecting terminal; the waterproof joint is sleeved on the wire harness; the connector comprises a bottom shell, an upper cover and a rear cover, the bottom shell is clamped with the upper cover, and the rear cover is connected with the back side of a structure formed by clamping the bottom shell and the upper cover; a first waterproof rubber ring is arranged between the upper cover and the bottom shell, a second waterproof rubber ring is arranged on the rear cover, and a third waterproof rubber ring is arranged at the butt joint part of the connector; through the design of the plurality of waterproof rubber rings of the connector and the waterproof joint of the wire harness, the waterproof performance of the wire harness is improved, and the situation that a circuit is damaged due to the fact that the wire harness is in contact with water vapor due to water accumulation in a use scene is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wire harnesses, and more particularly to a high-voltage wire harness for a battery pack. Background Technology

[0002] In outdoor equipment, taking large outdoor new energy lawnmowers as an example, because these products are used outdoors, they may encounter situations where weeds are damp, the weather is humid, or even the road surface is flooded, necessitating some degree of waterproofing. The waterproofing of the high-voltage wiring harness of the battery pack, which supplies power, is extremely critical during use. While existing high-voltage wiring harnesses are equipped with waterproof connectors to waterproof the connection points, the waterproofing level of other components remains insufficient. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-voltage wiring harness for a battery pack with good waterproof performance.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a high-voltage wiring harness for a battery pack, including a connector, a wiring harness, and a waterproof connector. One end of the wiring harness is connected to the connector, and the other end is provided with a connection terminal. The waterproof connector is sleeved on the wiring harness. The connector includes a bottom shell, a top cover, and a back cover. The bottom shell is snapped into the top cover, and the back cover is connected to the back side of the structure formed by the snapping of the bottom shell and the top cover. A first waterproof rubber ring is provided between the top cover and the bottom shell, a second waterproof rubber ring is provided on the back cover, and a third waterproof rubber ring is provided at the mating part of the connector.

[0005] Furthermore, the wire harness is covered with a fleece tape.

[0006] Furthermore, the wire harness is provided with heat shrink tubing at both ends corresponding to the velour tape.

[0007] Furthermore, the heat shrink tubing is an adhesive-backed heat shrink tubing.

[0008] Furthermore, one end of the wire harness is wrapped with adhesive heat shrink tubing to cover the connecting terminal, and the other end of the wire harness is abutted against the waterproof connector to prevent it from moving toward one end of the wire harness.

[0009] Furthermore, the adhesive-coated heat shrink tubing is a double-walled adhesive-coated heat shrink tubing, which has two surface layers and one adhesive layer, and the two surface layers and adhesive layer are connected in sequence.

[0010] Furthermore, the waterproof connector includes a connector body, a first waterproof component, a clamping component, and a locking component, all of which are sleeved on the wire harness. The connector body has protruding connecting posts at both ends, and the connecting posts are threaded. The connecting posts are hollow, and the clamping component is engaged with the connecting post on the side of the connector body away from the connecting terminal. The clamping component contains the first waterproof component, and the locking component is locked to the connecting post on the side of the connector body away from the connecting terminal. The end of the locking component abuts against the clamping component, pressing the first waterproof component onto the wire harness.

[0011] Furthermore, the clamping component includes clamping claws and a collar, with multiple clamping claws arranged along its circumference at one end of the collar; a first locking claw is provided at the end of the collar away from the clamping claws; a first locking groove is recessed in the inner wall of the connecting post on the side of the connector body away from the connecting terminal, and the first locking claw engages with the first locking groove.

[0012] Furthermore, the inner wall of the collar is provided with a raised edge, and the end of the first waterproof component abuts against the raised edge.

[0013] Furthermore, the outer wall of the first waterproof component has a rough surface that abuts against the inner wall of the collar.

[0014] The beneficial effects of this utility model are as follows: by designing multiple waterproof rubber rings for the connector and waterproof joints for the wire harness, the waterproof performance of the wire harness is improved, avoiding damage to the circuit caused by contact between the wire harness and moisture due to water accumulation in the usage environment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the high-voltage wiring harness of the battery pack according to a specific embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the waterproof connector of the high-voltage wiring harness of the battery pack according to a specific embodiment of this utility model.

[0017] Label Explanation:

[0018] 1. Connector; 11. Bottom shell; 12. Top cover; 13. Rear cover; 14. First waterproof rubber ring; 15. Second waterproof rubber ring; 2. Wire harness; 21. Connecting terminal; 22. Velcro tape; 23. Heat shrink tubing; 3. Waterproof connector; 31. Connector body; 311. Connecting post; 32. First waterproof component; 33. Clamping component; 331. Clamping claw; 332. Collar; 333. First locking claw; 34. Locking component. Detailed Implementation

[0019] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0020] Please refer to Figure 1 and Figure 2 A high-voltage wiring harness for a battery pack includes a connector 1, a wiring harness 2, and a waterproof connector 3. One end of the wiring harness 2 is connected to the connector 1, and the other end is provided with a connection terminal 21. The waterproof connector 3 is sleeved on the wiring harness 2. The connector 1 includes a bottom shell 11, a top cover 12, and a rear cover 13. The bottom shell 11 is snapped into the top cover 12, and the rear cover 13 is connected to the back side of the structure formed by the snapping of the bottom shell 11 and the top cover 12. A first waterproof rubber ring 14 is provided between the top cover 12 and the bottom shell 11, a second waterproof rubber ring 15 is provided on the rear cover 13, and a third waterproof rubber ring is provided at the mating part of the connector 1.

[0021] As can be seen from the above description, the beneficial effects of this utility model are as follows: by designing multiple waterproof rubber rings of connector 1 and waterproof connectors 3 of wire harness 2, the waterproof performance of wire harness 2 is improved, and the circuit is prevented from being damaged due to contact between wire harness 2 and water vapor caused by water accumulation in the usage environment.

[0022] Furthermore, the wire harness 2 is fitted with a fleece tape 22.

[0023] As can be seen from the above description, by covering the wire harness 2 with the fleece tape 22, the wire harness 2 is arranged compactly; at the same time, the fleece tape 22 has the functions of flame retardancy and high temperature resistance, which can improve the performance of the wire harness 2.

[0024] Furthermore, the wire harness 2 is provided with heat shrink tubing 23 at both ends corresponding to the velour tape 22.

[0025] As described above, heat shrink tubing 23 is used to quickly fix both ends of the fleece tape 22 to the wire harness 2.

[0026] Furthermore, the heat shrink tubing 23 is an adhesive-backed heat shrink tubing 23.

[0027] As can be seen from the above description, the design of the adhesive heat shrink tubing 23 can achieve waterproofing after connection.

[0028] Furthermore, one end of the wire harness 2 is wrapped with an adhesive heat shrink tubing 23 to enclose the connecting terminal 21, and the other end of the wire harness 2 has an adhesive heat shrink tubing 23 that abuts against the waterproof connector 3 to prevent it from moving toward one end of the wire harness 2.

[0029] As described above, by wrapping the heat shrink tubing 23 with the connecting terminal 21, the glue inside the heat shrink tubing 23 can fill the gap between the connecting terminal and the wire harness 2, achieving a good waterproof effect after curing. The design of setting the heat shrink tubing 23 at one end of the wire harness 2 serves two purposes: waterproof fixing and preventing the waterproof connector 3 from moving to the other end of the wire harness 2, thus avoiding the need to readjust the position of the waterproof connector 3 during assembly.

[0030] Furthermore, the adhesive-coated heat shrink tubing 23 is a double-walled adhesive-coated heat shrink tubing 23, which has two surface layers and one adhesive layer, and the two surface layers and adhesive layer are connected in sequence.

[0031] As can be seen from the above description, the double-sided design can improve the structural strength. In particular, the connection terminal 21 is wrapped with the double-arm adhesive heat shrink tubing 23, which can prevent fatigue damage caused by the swinging and bending of the wire harness 2.

[0032] Further, the waterproof connector 3 includes a connector body 31, a first waterproof component 32, a clamping component 33, and a locking component 34. The connector body 31, the first waterproof component 32, the clamping component 33, and the locking component 34 are all sleeved on the wire harness 2. The connector body 31 has connecting posts 311 protruding from both ends, and the connecting posts 311 are threaded. The connecting posts 311 are hollow, and the clamping component 33 is snapped into the connecting post 311 on the side of the connector body 31 away from the connecting terminal 21. The clamping component 33 contains the first waterproof component 32, and the locking component 34 is locked to the connecting post 311 on the side of the connector body 31 away from the connecting terminal 21. The end of the locking component 34 abuts against the clamping component 33 and presses the first waterproof component 32 onto the wire harness 2.

[0033] As described above, during assembly, the first waterproof component 32 is pressed into the connecting post 311 and then locked in place by the locking component 34, so that the locking component 34 presses against the clamping component 33, and the first waterproof component 32 inside the clamping component 33 can fit tightly against the wire harness 2 to achieve waterproof sealing; then the other connecting post 311 is engaged with the screw hole of the mounting position to lock and fix the wire harness 2.

[0034] Furthermore, the clamping member 33 includes a clamping claw 331 and a collar 332. One end of the collar 332 is provided with a plurality of clamping claws along its circumference. The end of the collar 332 away from the clamping claw 331 is provided with a first locking claw 333. The inner wall of the connecting post 311 on the side of the connector body 31 away from the connecting terminal 21 is recessed with a first locking groove, and the first locking claw 333 engages with the first locking groove.

[0035] As can be seen from the above description, the clamping member 33 is quickly clamped and fixed in the connecting post 311 by engaging the first claw 333 of the collar 332 with the first slot on the inner wall of the connecting post 311.

[0036] Furthermore, the inner wall of the collar 332 is provided with a raised edge, and the end of the first waterproof component 32 abuts against the raised edge.

[0037] As can be seen from the above description, the protruding edge of the inner wall of the collar 332 is arranged to limit the assembly position of the first waterproof component 32.

[0038] Furthermore, the outer wall of the first waterproof component 32 is provided with a rough surface and abuts against the inner wall of the collar 332.

[0039] As can be seen from the above description, the rough surface design of the first waterproof component 32 can improve the friction between it and the inside of the collar 332, so that the first waterproof component 32 can be fixed to the collar 332 after being pressed into it and will not easily come out.

[0040] Please refer to Figure 1 and Figure 2 Embodiment 1 of this utility model is as follows:

[0041] A high-voltage wiring harness for a battery pack includes a connector 1, a wiring harness 2, and a waterproof connector 3. One end of the wiring harness 2 is connected to the connector 1, and the other end is provided with a connection terminal 21. The waterproof connector 3 is sleeved on the wiring harness 2. The connector 1 includes a bottom shell 11, a top cover 12, and a rear cover 13. The bottom shell 11 is snapped into the top cover 12, and the rear cover 13 is connected to the back side of the structure formed by the snapping of the bottom shell 11 and the top cover 12. A first waterproof rubber ring 14 is provided between the top cover 12 and the bottom shell 11, a second waterproof rubber ring 15 is provided on the rear cover 13, and a third waterproof rubber ring is provided at the mating part of the connector 1.

[0042] The wire harness 2 is fitted with a fleece tape 22.

[0043] The wire harness 2 is provided with heat shrink tubing 23 at both ends corresponding to the velour tape 22.

[0044] The heat shrink tubing 23 is an adhesive-backed heat shrink tubing 23.

[0045] One end of the wire harness 2 is wrapped with a heat shrink tubing 23 to connect the terminal 21, and the other end of the wire harness 2 is abutted against the waterproof connector 3 to prevent it from moving toward one end of the wire harness 2.

[0046] The adhesive-coated heat shrink tubing 23 is a double-walled adhesive-coated heat shrink tubing 23, which has two surface layers and one adhesive layer, and the two surface layers and the adhesive layer are connected in sequence.

[0047] The waterproof connector 3 includes a connector body 31, a first waterproof component 32, a clamping component 33, and a locking component 34. The connector body 31, the first waterproof component 32, the clamping component 33, and the locking component 34 are all sleeved on the wire harness 2. The connector body 31 has connecting posts 311 protruding from both ends, and the connecting posts 311 are threaded. The connecting posts 311 are hollow, and the clamping component 33 is snapped into the connecting post 311 on the side of the connector body 31 away from the connecting terminal 21. The clamping component 33 contains the first waterproof component 32. The locking component 34 is locked to the connecting post 311 on the side of the connector body 31 away from the connecting terminal 21. The end of the locking component 34 abuts against the clamping component 33 and presses the first waterproof component 32 onto the wire harness 2.

[0048] The clamping member 33 includes a clamping claw 331 and a collar 332. One end of the collar 332 is provided with a plurality of clamping claws along its circumference. The end of the collar 332 away from the clamping claw 331 is provided with a first locking claw 333. The inner wall of the connecting post 311 on the side of the connector body 31 away from the connecting terminal 21 is recessed with a first locking groove, and the first locking claw 333 engages with the first locking groove.

[0049] The inner wall of the collar 332 is provided with a raised edge, and the end of the first waterproof component 32 abuts against the raised edge.

[0050] The outer wall of the first waterproof component 32 has a rough surface and abuts against the inner wall of the collar 332.

[0051] In summary, the high-voltage wiring harness for the battery pack provided by this utility model improves the waterproof performance of the wiring harness through the design of multiple waterproof rubber rings on the connector and the waterproof joint of the wiring harness, thus avoiding the possibility of circuit damage due to contact between the wiring harness and moisture caused by water accumulation in the usage environment.

[0052] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-voltage wiring harness for a battery pack, characterized in that, The device includes a connector, a wire harness, and a waterproof connector. One end of the wire harness is connected to the connector, and the other end is provided with a connection terminal. The waterproof connector is sleeved on the wire harness. The connector includes a bottom shell, a top cover, and a rear cover. The bottom shell is snapped into the top cover, and the rear cover is connected to the back side of the structure formed by the snapping of the bottom shell and the top cover. A first waterproof rubber ring is provided between the top cover and the bottom shell, a second waterproof rubber ring is provided on the rear cover, and a third waterproof rubber ring is provided on the mating part of the connector.

2. The high-voltage wiring harness for the battery pack according to claim 1, characterized in that, The wire harness is covered with a fleece tape.

3. The high-voltage wiring harness for the battery pack according to claim 2, characterized in that, The wire harness has heat shrink tubing at both ends corresponding to the felt tape.

4. The high-voltage wiring harness for the battery pack according to claim 3, characterized in that, The heat shrink tubing is adhesive-backed heat shrink tubing.

5. The high-voltage wiring harness for the battery pack according to claim 3, characterized in that, One end of the wire harness is wrapped with adhesive heat shrink tubing to connect the terminal, and the other end of the wire harness is abutted against the waterproof connector to prevent it from moving toward one end of the wire harness.

6. The high-voltage wiring harness for the battery pack according to claim 5, characterized in that, The adhesive-backed heat shrink tubing is a double-walled adhesive-backed heat shrink tubing.

7. The high-voltage wiring harness for the battery pack according to claim 1, characterized in that, The waterproof connector includes a connector body, a first waterproof component, a clamping component, and a locking component, all of which are sleeved on the wire harness. The connector body has protruding connecting posts at both ends, each with a threaded connection. The connecting posts are hollow, and the clamping component is engaged with the connecting post on the side of the connector body away from the connecting terminal. The clamping component contains the first waterproof component, and the locking component is locked to the connecting post on the side of the connector body away from the connecting terminal. The end of the locking component abuts against the clamping component, pressing the first waterproof component firmly onto the wire harness.

8. The high-voltage wiring harness for the battery pack according to claim 7, characterized in that, The clamping component includes clamping claws and a collar. One end of the collar is provided with multiple clamping claws along its circumference. The end of the collar away from the clamping claws is provided with a first locking claw. The inner wall of the connecting post on the side of the connector body away from the connecting terminal is recessed with a first locking groove, and the first locking claw engages with the first locking groove.

9. The high-voltage wiring harness for the battery pack according to claim 8, characterized in that, The inner wall of the collar is provided with a raised edge, and the end of the first waterproof component abuts against the raised edge.

10. The high-voltage wiring harness for the battery pack according to claim 7, characterized in that, The outer wall of the first waterproof component has a rough surface that abuts against the inner wall of the collar.

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