Waterproof low-voltage power line for electric vehicle control box

Abstract

The utility model discloses an electric motor car control box waterproof low voltage power line, it includes: the plug -in barrel, its front end has with the plug -in part of electric motor car control box's perforation insertion, and the plug -in part outer surface is equipped with at least two waterproof rings for forming two sealed waterproof structure with the perforation, and the plug -in part front end still is equipped with a plurality of elastic buckles for with the clamping slot or the bayonet buckle fixed connection, cable is passed and is equipped in the through -hole of plug -in barrel through -and -through front and back end, and the cable outside and through -hole between still seal fixed through the injection sealant, and its waterproof effect is extremely ideal, and the cable front end at least two wires stretches out in the plug -in barrel front end, and wire setting is used for electric motor car control box fixed and forms the terminal of electric property guide. The plug -in barrel is fixedly connected through the elastic buckle with the electric motor car control box buckle, and its assembly structure stability, will not be because of the pulling loose or moving, and it further improves waterproof tightness, makes product quality extremely good, has extremely strong market competitiveness.

Description

Technical Field

[0001] This utility model relates to the technical field of power cord products, and specifically to a waterproof low-voltage power cord for an electric vehicle control box. Background Technology

[0002] Chinese utility model patent application number 202122515966.7 discloses a novel cable control box, which includes a backing, a base, a waterproof cable plug, a power control board, a display control board, a sealing ring, a top cover, a faceplate, a curved panel, and a cable. The backing is adhered to a groove at the bottom of the base; the waterproof cable plug is secured at both ends of the base; the power control board is embedded inside the base; the display control board is embedded on one side of the top cover; the faceplate is adhered to the other side of the top cover; the sealing ring is secured in a groove in the top cover; the curved panel is adhered to the faceplate; and the cable passes through the waterproof cable plug and connects to both ends of the power control board.

[0003] The cables in the aforementioned control box pass through the waterproof cable plugs and connect to both ends of the power control board. That is, the cables form a sealed assembly with the base through the waterproof cable plugs. Although this can achieve a certain waterproof effect, it also has the following shortcomings: The waterproof cable plugs are set in the through holes of the base, which not only has the problem of unstable assembly structure, but also has the problem of poor sealing between the waterproof cable plugs and the base. Furthermore, after the cables are pulled forcefully, the cables move relative to the base, which further affects the waterproof sealing performance and makes its quality less than ideal.

[0004] In view of the above, the inventors propose the following technical solution. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a waterproof low-voltage power cord for an electric vehicle control box.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The waterproof low-voltage power cord for the electric vehicle control box includes: a plug tube, the front end of which has a plug-in part for insertion into the through hole of the electric vehicle control box, the outer surface of which is provided with at least two waterproof rings for forming two sealing waterproof structures with the through hole, and the front end of which is also provided with a number of elastic buckles for fixed connection with the slots or buckles of the electric vehicle control box; a cable, which passes through the through hole in the plug tube and extends through the front and rear ends, and the cable is sealed and fixed with the through hole by injecting sealant, and at least two wires at the front end of the cable extend out of the front end of the plug tube, and the wires are provided with terminals for fixing the electric vehicle control box and forming an electrical connection.

[0007] Furthermore, in the above technical solution, a metal ring for increasing tightness and holding force is also pressed and fixed to the periphery of the end of the cable, and the metal ring is snapped and fixed in the slot provided in the inner wall of the through hole.

[0008] Furthermore, in the above technical solution, the outer surface of the plug part is provided with two spaced annular grooves, and two waterproof rings are respectively fitted and fixed in the annular grooves, and the outer sides of the waterproof rings extend out of the annular grooves and protrude from the outer surface of the plug part.

[0009] Furthermore, in the above technical solution, the rear end of the plug tube is integrally formed with an outwardly protruding blocking protrusion for preventing mistaken insertion and excessive insertion of the plug tube into the perforation of the electric vehicle control box.

[0010] Furthermore, in the above technical solution, there are two elastic buckles, which are symmetrically distributed at the front end of the insertion part, and the root of the elastic buckle and the connection part at the front end of the insertion part are integrally formed with reinforcing ribs.

[0011] Furthermore, in the above technical solution, the cable is covered with a layer of TPU sheath.

[0012] Furthermore, in the above technical solution, the other end of the cable connected to the plug tube is provided with a plug, and the plug has an integrally formed press-lock buckle that extends outward relative to the plug and has a locking slot.

[0013] Furthermore, in the above technical solution, the cable is provided with a movable connecting buckle on the outside.

[0014] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: When the present invention is assembled with the electric vehicle control box, the plug-in part of the plug tube is inserted into the through hole of the electric vehicle control box. At least two waterproof rings on the outer surface of the plug-in part and the through hole form a double-seal waterproof structure, which has an ideal waterproof effect. This ensures that the plug tube and the electric vehicle control box form a sealed assembly. After the plug tube is inserted into the electric vehicle control box, the elastic buckle at the front end of the plug-in part is fixedly connected with the slot or buckle of the electric vehicle control box, so that the plug tube is fixed on the electric vehicle control box and will not accidentally come off. This ensures the stability of the assembly structure, so that even after the cable is pulled forcefully, the cable will not move relative to the electric vehicle control box and be pulled out. This further improves the waterproof sealing performance, makes the product of excellent quality, and gives the present invention a strong market competitiveness. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a partial exploded perspective view of this utility model.

[0017] Figure 3 This is a partial sectional view of the present invention.

[0018] Figure 4 This is a perspective view of the insert tube in this utility model.

[0019] Figure 5 This is a perspective view of the insert tube in this utility model from another angle.

[0020] Figure 6 This is a partial structural diagram of the present invention. Detailed implementation method: The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0021] See Figure 1-6 As shown, a waterproof low-voltage power cord for an electric vehicle control box includes: a connector 1 and a cable 2.

[0022] The cable 2 passes through the through hole 10 in the plug tube 1, which runs through the front and rear ends. The cable 2 is sealed and fixed to the through hole 10 by injecting sealant. At least two wires 21 at the front end of the cable 2 extend out of the front end of the plug tube 1. The wires 21 are provided with terminals 22 for fixing the electric vehicle control box and forming an electrical connection. The front end of the connector tube 1 has a connector portion 11 for insertion into the through hole of the electric vehicle control box. The outer surface of the connector portion 11 is provided with at least two waterproof rings 12 to form a double-seal waterproof structure with the through hole. The front end of the connector portion 11 is also provided with several elastic buckles 13 for fixed connection with the slots or latches of the electric vehicle control box. When assembling with the electric vehicle control box, the wire 21 and terminal 22 at the front end of the cable 2 pass through the through hole of the electric vehicle control box to extend into the interior of the electric vehicle control box. The terminal 22 is fixed to the PCB board or conductor inside the electric vehicle control box to form a fixed conductive connection. Then, the connector portion 11 of the connector tube 1 is inserted into the through hole of the electric vehicle control box. The outer surface of the connector 11 has at least two waterproof rings 12, which together with the perforation form a double-seal waterproof structure, resulting in an ideal waterproof effect. This ensures that the connector 1 and the electric vehicle control box form a sealed assembly. After the connector 1 is inserted into the electric vehicle control box, the elastic buckle 13 at the front end of the connector 11 is fixedly connected to the slot or latch of the electric vehicle control box, thus fixing the connector 1 to the electric vehicle control box. It will not accidentally come off, ensuring the stability of the assembly structure. Even after pulling the cable forcefully, the cable 2 will not move relative to the electric vehicle control box and be pulled out. This further improves the waterproof sealing performance, resulting in excellent product quality and giving this utility model a strong market competitiveness.

[0023] In some embodiments, the sealant also seals the front and rear ports of the through hole 10.

[0024] The other end of the cable 2 connected to the connector sleeve 1 may not be connected to a plug or other connecting parts. It can form an electrical connection with the installation part by stripping the outer sheath to expose the metal wire core. Alternatively, a plug 3 can be provided at the other end of the cable 2 connected to the connector sleeve 1. A press-lock 31 is integrally formed on the plug 3, extending outwards from the plug 3, and has a locking slot 311. When the plug 3 is inserted into the socket, the locking slot 311 of the press-lock 31 presses and secures it with the retaining body inside the socket, thus ensuring the stability of the assembly structure and preventing the plug 3 from accidentally dislodging.

[0025] The outer surface of the insertion part 11 is provided with two spaced annular grooves 111. Two waterproof rings 12 are respectively fitted and fixed in the annular grooves 111, and the outer side of the waterproof rings 12 extends out of the annular grooves 111 and protrudes from the outer surface of the insertion part 11. Its assembly structure can achieve a stable sealing function.

[0026] In this embodiment, there are two elastic buckles 13, which are symmetrically distributed at the front end of the insertion part 11. The root of the elastic buckle 13 is integrally formed with a reinforcing rib 131 at the connection part of the insertion part 11 to ensure the stability of the structure and prevent accidental breakage.

[0027] The cable 2 is also press-fitted with a metal ring 23 to increase tightness and holding force at its end periphery. The metal ring 23 is snapped into the slot 101 provided on the inner wall of the through hole 10, which can ensure the stability of the connection between the end of the cable 2 and the plug tube 1 and improve the holding force between the two, thus effectively preventing the cable 2 from being pulled out of the electric vehicle control box.

[0028] The rear end of the connector 1 is also integrally formed with an outwardly protruding blocking protrusion 14, which is used to prevent mistaken insertion and excessive insertion of the connector 1 into the through hole of the electric vehicle control box. When the connector 1 is inserted into the through hole of the electric vehicle control box and is in place, the blocking protrusion 14 abuts against the outer periphery of the through hole of the electric vehicle control box and is inserted into the limiting groove provided at the through hole of the electric vehicle control box, thereby preventing accidental excessive insertion and ensuring the stability of the assembly structure.

[0029] The cable 2 is covered with a TPU outer sheath, which has the advantages of being waterproof, oil-proof, UV-resistant, and heat-resistant up to 85°C.

[0030] The cable 2 is provided with a movable connecting buckle 4 on its outside. The connecting buckle 4 is used for fixed connection to the outer surface of the electric vehicle control box or other parts, which facilitates the routing of the cable 2 and can improve the neatness of the routing.

[0031] In summary, when this utility model is assembled with an electric vehicle control box, the plug-in part 11 of the plug tube 1 is inserted into the through hole of the electric vehicle control box. At least two waterproof rings 12 on the outer surface of the plug-in part 11 and the through hole form a double-seal waterproof structure, which has an ideal waterproof effect. This ensures that the plug tube 1 and the electric vehicle control box form a sealed assembly. After the plug tube 1 is inserted into the electric vehicle control box, the elastic buckle 13 at the front end of the plug-in part 11 is fixedly connected to the slot or buckle of the electric vehicle control box, so that the plug tube 1 is fixed on the electric vehicle control box and will not accidentally come off. This ensures the stability of the assembly structure, so that even after the cable is pulled forcefully, the cable 2 will not move relative to the electric vehicle control box and be pulled out. This further improves the waterproof sealing performance, makes the product of excellent quality, and gives this utility model a strong market competitiveness.

[0032] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A waterproof low-voltage power cable for an electric vehicle control box, characterized in that: It includes: The plug-in tube (1) has a plug-in part (11) at its front end that is inserted into the through hole of the electric vehicle control box. The outer surface of the plug-in part (11) is provided with at least two waterproof rings (12) for forming two sealing waterproof structures with the through hole. The front end of the plug-in part (11) is also provided with several elastic buckles (13) for fixed connection with the slot or buckle of the electric vehicle control box. The cable (2) is inserted into the through hole (10) in the plug tube (1) that runs through the front and rear ends. The cable (2) is sealed and fixed to the through hole (10) by injecting sealant. At least two wires (21) at the front end of the cable (2) extend out of the front end of the plug tube (1). The wires (21) are provided with terminals (22) for fixing the electric vehicle control box and forming an electrical connection.

2. The waterproof low-voltage power cable for the electric vehicle control box according to claim 1, characterized in that: The cable (2) is also press-fitted with a metal ring (23) to increase tightness and holding force at the outer periphery of the end. The metal ring (23) is snapped into the slot (101) provided on the inner wall of the through hole (10).

3. The waterproof low-voltage power cable for the electric vehicle control box according to claim 1, characterized in that: The outer surface of the plug part (11) is provided with two spaced annular grooves (111), and two waterproof rings (12) are respectively fitted and fixed in the annular grooves (111), and the outer side of the waterproof rings (12) extends out of the annular grooves (111) and protrudes from the outer surface of the plug part (11).

4. The waterproof low-voltage power cable for the electric vehicle control box according to any one of claims 1-3, characterized in that: The rear end of the plug tube (1) is also integrally formed with an outwardly protruding blocking protrusion (14) for foolproof and to prevent the plug tube (1) from being over-inserted into the hole of the electric vehicle control box.

5. The waterproof low-voltage power cable for the electric vehicle control box according to claim 4, characterized in that: There are two elastic buckles (13), which are symmetrically distributed at the front end of the plug (11), and the root of the elastic buckle (13) and the connection part of the front end of the plug (11) are integrally formed with a reinforcing rib (131).

6. The waterproof low-voltage power cable for the electric vehicle control box according to claim 4, characterized in that: The cable (2) is covered with a TPU outer sheath.

7. The waterproof low-voltage power cable for the electric vehicle control box according to claim 4, characterized in that: The cable (2) is connected to the other end of the plug tube (1) and a plug (3) is provided. The plug (3) has an integrally formed press lock (31) that extends outward relative to the plug (3) and has a locking slot (311).

8. The waterproof low-voltage power cable for the electric vehicle control box according to claim 4, characterized in that: The cable (2) is provided with a movable connecting buckle (4) on its outside.

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