A vehicle end high voltage cable connection device

Abstract

This utility model provides a high-voltage cable connection device for vehicle ends, including a receiving component. A plug-in component is located on the left side of the receiving component. Both the receiving component and the plug-in component have sealing components inside. The receiving component includes a fixed cylinder with a fitting groove. A ball bearing is movably fitted inside the fitting groove. A limiting component is also provided on the outer side of the fixed cylinder. Compared with the prior art, this utility model has the following advantages: By setting a plug-in design for the receiving component and the plug-in component, the plug-in component drives the cable to be inserted into the connection terminal of the receiving component, thereby achieving rapid connection. Connection or separation can be completed quickly without professional tools, greatly improving installation and maintenance efficiency and increasing usage flexibility. By setting a sealing component, using O-rings and sealant structures, moisture is effectively isolated, reducing the risk of short-circuit faults caused by water seepage.

Description

Technical Field

[0001] This utility model belongs to the field of automotive cable connection, and specifically relates to a high-voltage cable connection device at the vehicle end. Background Technology

[0002] The high-voltage cable connection device at the vehicle end is a key component of the high-voltage electrical system of electric vehicles. It is mainly used to connect high-voltage components such as high-voltage batteries, motor controllers, and charging interfaces to realize the transmission and distribution of electrical energy. Its core function is to ensure a stable and reliable electrical connection under high voltage and high current conditions, while also possessing characteristics such as insulation protection, electromagnetic shielding, and mechanical fixation. This device typically consists of conductive terminals, an insulating shell, seals, and a mechanical locking mechanism, and must meet requirements for high temperature resistance, vibration resistance, dust and water resistance, etc. However, for connection devices without a quick plug-and-play design, the most significant drawback is low maintenance efficiency and difficulty in emergency power disconnection. In vehicle maintenance or emergency situations, the disassembly of traditional bolt-fixed or complex locking structure connection devices is time-consuming, requires special tools, and involves cumbersome operation procedures, reducing the flexibility of use. Therefore, we hope to design a high-voltage cable connection device at the vehicle end to solve this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-voltage cable connection device at the vehicle end to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a vehicle-end high-voltage cable connection device, comprising: a receiving component, a plug-in component provided on the left side of the receiving component, and a sealing component provided inside both the receiving component and the plug-in component;

[0005] The receiving component includes a fixed cylinder with a fitting groove, a ball being movably fitted inside the fitting groove, and a limit component being provided on the outside of the fixed cylinder.

[0006] The plug-in assembly includes a plug-in cylinder, which is slidably sleeved inside the fixed cylinder. A limiting groove is formed on the outer side of the plug-in cylinder, and the ball bearing is movably fitted inside the limiting groove. By setting the plug-in assembly and receiving assembly into a plug-in design, the plug-in assembly drives the cable to be inserted into the connection terminal of the receiving assembly, thereby achieving quick connection. Connection or separation can be completed quickly without professional tools, which greatly improves installation and maintenance efficiency and improves the flexibility of use.

[0007] In a preferred embodiment, both the fixing cylinder and the plug-in cylinder are made of fire-resistant and heat-resistant flame-retardant nylon.

[0008] In a preferred embodiment, the limiting component includes a fixing sleeve, which is fixedly connected to the outside of the fixing cylinder. A limiting ring is slidably sleeved on the outside of the fixing cylinder, and a spring is also provided on the outside of the fixing cylinder. The limiting ring is used to limit the ball so that it fits into the limiting groove of the insertion cylinder.

[0009] In a preferred embodiment, the inner side of the limiting ring is provided with an arc-shaped groove to provide space for ball displacement.

[0010] In a preferred embodiment, one end of the spring is fixedly connected to the limiting ring, and the other end of the spring is fixedly connected to the fixing sleeve.

[0011] In a preferred embodiment, both the fixed cylinder and the plug-in cylinder are provided with cables inside, and the terminals of the cables at both ends are plugged into the interior of the connecting terminals.

[0012] In a preferred embodiment, the sealing assembly includes an O-ring, which is fixedly connected to the inside of the fixing cylinder. Both the fixing cylinder and the insertion cylinder are filled with sealant. A protective sleeve is fixedly connected to the outside of the sealant and is fixedly fitted onto the outside of the cable. By setting up the sealing assembly, the O-ring and sealant structure effectively isolate moisture and reduce the risk of short circuit faults caused by water seepage.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] 1. By setting up a plug-in design for the receiving component and the plug-in component, the plug-in component drives the cable to be inserted into the connection terminal of the receiving component, thereby achieving quick connection. Connection or disconnection can be completed quickly without professional tools, which greatly improves installation and maintenance efficiency and enhances the flexibility of use.

[0015] 2. By setting up a sealing component, using O-rings and sealant structure, moisture is effectively isolated, reducing the risk of short circuit failures caused by water seepage. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a perspective view of the overall structure of a high-voltage cable connection device at the vehicle end according to the present invention.

[0018] Figure 2 This is a partial exploded view of a high-voltage cable connection device at the vehicle end according to the present invention.

[0019] Figure 3 This is a top sectional view of a high-voltage cable connection device at the vehicle end according to the present invention.

[0020] Figure 4 This is a perspective view of the limiting ring of a high-voltage cable connection device at the vehicle end according to the present invention.

[0021] In the diagram, 1-receiving component, 2-plug-in component, 3-sealing component;

[0022] 11-Fixed cylinder, 12-Matching groove, 13-Ball, 14-Limiting assembly, 141-Fixed sleeve, 142-Limiting ring, 143-Spring, 144-Arc-shaped ring groove, 15-Connecting terminal;

[0023] 21-Plug-in sleeve, 22-Limiting groove, 23-Cable;

[0024] 31-O-ring seal, 32-Sealing adhesive, 33-Protective sleeve. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-4 As the first embodiment of this utility model:

[0027] A vehicle-end high-voltage cable connection device includes: a receiving component 1, a plug-in component 2 disposed on the left side of the receiving component 1, and a sealing component 3 disposed inside both the receiving component 1 and the plug-in component 2.

[0028] The receiving component 1 includes a fixed cylinder 11, on which a fitting groove 12 is provided, and a ball bearing 13 is movably fitted inside the fitting groove 12. A limit component 14 is also provided on the outside of the fixed cylinder 11.

[0029] The plug-in assembly 2 includes a plug-in cylinder 21, which is slidably sleeved inside the fixed cylinder 11. A limiting groove 22 is provided on the outer side of the plug-in cylinder 21, and the ball bearing 13 is movably fitted inside the limiting groove 22. By setting the plug-in design of the receiving assembly 1 and the plug-in assembly 2, the plug-in assembly 2 drives the cable 23 to be inserted into the connection terminal 15 of the receiving assembly 1, thereby achieving quick connection. Connection or separation can be completed quickly without professional tools, which greatly improves the efficiency of installation and maintenance and increases the flexibility of use.

[0030] Both the fixed cylinder 11 and the plug-in cylinder 21 are made of fire-resistant and heat-resistant flame-retardant nylon.

[0031] The limiting component 14 includes a fixing sleeve 141, which is fixedly connected to the outside of the fixing cylinder 11. A limiting ring 142 is slidably sleeved on the outside of the fixing cylinder 11. A spring 143 is also provided on the outside of the fixing cylinder 11. The limiting ring 142 is used to limit the ball 13 so that it fits into the limiting groove 22 of the insertion cylinder 21.

[0032] An arc-shaped groove 144 is provided on the inner side of the limiting ring 142 to provide displacement space for the ball 13.

[0033] One end of the spring 143 is fixedly connected to the limiting ring 142, and the other end of the spring 143 is fixedly connected to the fixing sleeve 141.

[0034] Both the fixed cylinder 11 and the plug-in cylinder 21 are equipped with cables 23, and the terminals of the cables 23 at both ends are plugged into the interior of the connecting terminals 15.

[0035] Specifically, when connecting the two cables 23, the right cable 23 is first fixed to the connecting terminal 15 via the terminal. Then, the limiting ring 142 is pushed to compress the spring 143 and deform it. Then, the plug-in tube 21 is inserted into the fixed tube 11, and at the same time, the terminal of the left cable 23 is inserted into the connecting terminal 15 of the fixed tube 11, thereby connecting the two cables 23. During the insertion process, the plug-in tube 21 squeezes the ball 13 to move into the arc-shaped groove 144 inside the limiting ring 142. After it is fully inserted, the limiting ring 142 is released. The limiting ring 142 is reset under the elastic force of the spring 143 and squeezes the ball 13 to fit into the limiting groove 22 of the plug-in tube 21, thus completing the connection of the plug-in tube 21 and the cable 23. The connection can be completed quickly without professional tools, which greatly improves the efficiency of installation and maintenance and increases the flexibility of use.

[0036] Please see Figures 1-3 As a second embodiment of this utility model:

[0037] The sealing assembly 3 includes an O-ring 31, which is fixedly connected to the inside of the fixed cylinder 11. Both the fixed cylinder 11 and the plug-in cylinder 21 are filled with sealant 32. A protective sleeve 33 is fixedly connected to the outside of the sealant 32. The protective sleeve 33 is fixedly fitted onto the outside of the cable 23. By setting the sealing assembly 3, the structure of the O-ring 31 and the sealant 32 effectively isolates moisture and reduces the risk of short circuit failure caused by water seepage.

[0038] Sealant 32 is a high-temperature resistant silicone sealant used for filling gaps.

[0039] Based on the above embodiments, before connecting the two cables 23, the right cable 23 is first inserted into the connecting terminal 15 inside the fixed cylinder 11 through an interference fit, while the left cable 23 passes through the inside of the plug-in cylinder 21. Then, sealant 32 is filled inside the right end of the fixed cylinder 11 and the left end of the plug-in cylinder 21 to fix the cable 23 and fill the gap to improve the waterproof effect and reduce the risk of short circuit failure caused by water seepage.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 high-voltage cable connection device at the vehicle end, comprising: The receiving component (1) is characterized in that a plug-in component (2) is provided on the left side of the receiving component (1), and a sealing component (3) is provided inside both the receiving component (1) and the plug-in component (2). The receiving component (1) includes a fixed cylinder (11), on which a fitting groove (12) is provided, and a ball (13) is movably fitted inside the fitting groove (12). A limiting component (14) is also provided on the outside of the fixed cylinder (11). The plug-in assembly (2) includes a plug-in tube (21), which is slidably sleeved inside the fixed tube (11). A limiting groove (22) is provided on the outer side of the plug-in tube (21), and the ball (13) is movably fitted inside the limiting groove (22).

2. The high-voltage cable connection device at the vehicle end as described in claim 1, characterized in that: Both the fixed cylinder (11) and the plug-in cylinder (21) are made of fire-resistant and heat-resistant flame-retardant nylon.

3. The high-voltage cable connection device at the vehicle end as described in claim 2, characterized in that: The limiting component (14) includes a fixing sleeve (141), which is fixedly connected to the outside of the fixing cylinder (11). A limiting ring (142) is slidably sleeved on the outside of the fixing cylinder (11), and a spring (143) is also provided on the outside of the fixing cylinder (11).

4. The high-voltage cable connection device at the vehicle end as described in claim 3, characterized in that: The inner side of the limiting ring (142) is provided with an arc-shaped ring groove (144) to provide displacement space for the ball (13).

5. The high-voltage cable connection device at the vehicle end as described in claim 3, characterized in that: One end of the spring (143) is fixedly connected to the limiting ring (142), and the other end of the spring (143) is fixedly connected to the fixing sleeve (141).

6. The high-voltage cable connection device at the vehicle end as described in claim 1, characterized in that: Both the fixed cylinder (11) and the plug-in cylinder (21) are equipped with cables (23), and the terminals of the cables (23) at both ends are plugged into the interior of the connecting terminals (15).

7. The high-voltage cable connection device at the vehicle end as described in claim 1, characterized in that: The sealing assembly (3) includes an O-ring (31), which is fixedly connected to the inside of the fixed cylinder (11). The inside of the fixed cylinder (11) and the plug-in cylinder (21) are filled with sealant (32). A protective sleeve (33) is fixedly connected to the outside of the sealant (32), and the protective sleeve (33) is fixedly sleeved on the outside of the cable (23).

8. The high-voltage cable connection device at the vehicle end as described in claim 7, characterized in that: The sealant (32) is a high-temperature resistant silicone sealant used for filling gaps.

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