A waterproof connector for electric vehicles

Abstract

The utility model discloses a waterproof connector for electric automobile, including connecting cable, two groups are equipped with to connecting cable, still include the sleeve mechanism for constituting waterproof type sleeve structure, the connecting mechanism for constituting quick -wearing type connecting structure and the wire core mechanism for constituting buffer formula docking structure, sleeve mechanism arrangement is in one end outside of one group connecting cable, and the connecting mechanism corresponds sleeve mechanism configuration in one end outside of another group connecting cable, and wire core mechanism assembly is in the inside of sleeve mechanism and connecting mechanism, the utility model has the beneficial effect that is equipped with sleeve mechanism, and through waterproof sheath structure can avoid sleeve connection place to appear the water inlet phenomenon and satisfy the action demand of sleeve end, effectively promote the waterproof effect of connector, and be equipped with connecting mechanism and wire core mechanism cooperation, can realize sleeve mechanism and the quick plug -in connection of connecting mechanism, and the connection efficiency is high, and the phenomenon that is not easy to appear loose, and the use flexibility is strong.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle accessories technology, and in particular to a waterproof connector for electric vehicles. Background Technology

[0002] In existing technology, electric vehicles refer to vehicles that are powered by onboard power sources, drive wheels with electric motors, and meet all road traffic and safety regulations. With high fuel prices, electric vehicles are gaining popularity and are increasingly used. The main differences between electric vehicles and gasoline vehicles lie in four main components: the drive motor, speed controller, power battery, and onboard charger. Since these main components are electrically controlled, high-voltage connectors play a crucial role in electric vehicles. These connectors are primarily used to connect various high-voltage components, such as the battery pack, motor controller, and DC-DC converter. They enable the transmission and distribution of high-voltage current and ensure stable and reliable electrical connections between components. Currently, high-voltage connectors in electric vehicles are typically located under the chassis, close to the ground or wheel hubs. This makes them susceptible to corrosion or malfunction due to moisture or other external substances, which can reduce battery performance and lifespan, ultimately affecting the normal operation of the electric vehicle's drive system, battery management system, and other critical electrical components.

[0003] Chinese utility model patent application number 202323170487.1 discloses a waterproof connector for electric vehicles, including a first connecting wire, a first connecting end on one side of the outer surface of the first connecting wire, an insulating waterproof pad adhered to the side of the first connecting wire near the first connecting end, an external thread on the outer surface of the first connecting end, a second connecting end on the side of the first connecting end away from the first connecting wire, an internal thread on the inner surface of the second connecting end, a second connecting wire adhered to the side of the second connecting end away from the inner insert, anti-slip texture on the outer surface of the second connecting end near the inner insert, an insulating waterproof ring adhered to the side of the second connecting end near the inner insert, and an inner insert cylinder inside the second connecting end. However, this type of waterproof connector for electric vehicles requires the first connecting end to be screwed into the second connecting end through a threaded structure during connection, resulting in low connection efficiency, inability to quickly insert and remove the connector, inconvenience for subsequent disassembly and maintenance, and poor flexibility of use. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof connector for electric vehicles.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows:

[0006] A waterproof connector for electric vehicles includes connecting cables in two sets, and further includes a sleeve mechanism for forming a waterproof sleeve structure, a connecting mechanism for forming a quick-connect structure, and a core mechanism for forming a buffered mating structure. The sleeve mechanism is arranged on the outside of one end of one set of connecting cables, and the connecting mechanism is arranged on the outside of one end of the other set of connecting cables corresponding to the sleeve mechanism. The core mechanism is assembled on the inside of the sleeve mechanism and the connecting mechanism.

[0007] The conduit mechanism includes a cable conduit, a cable core tube, an anchoring end sleeve, and a waterproof component. The cable conduit is disposed on the outside of one group of connecting cables and sleeved with the corresponding connecting cable. The cable core tube is disposed at one end of the cable conduit and inserted into the cable conduit. One end of the cable core tube protrudes from the end of the cable conduit. The anchoring end sleeve is disposed on the outside of the end of the cable conduit corresponding to the cable core tube and riveted to the cable conduit.

[0008] The anchoring end sleeve and the portion where the cable core tube is inserted into the cable sleeve are both designed with a wave-shaped anti-detachment structure.

[0009] It also includes limiting balls and anti-detachment retaining rings. There are several limiting balls, which are disposed on the side of the end of the cable core tube that protrudes from the cable sleeve and are embedded in the cable core tube. Part of the limiting balls protrudes from the inner wall of the cable core tube. There are two sets of anti-detachment retaining rings, which are disposed side by side at intervals on the inner side of the end of the cable core tube that protrudes from the cable sleeve and are embedded in the inner wall of the cable core tube through mounting grooves. Part of the anti-detachment retaining rings protrudes from the inner wall of the cable core tube.

[0010] The waterproof assembly includes a sleeve end, a return spring, and a waterproof sheath. The sleeve end is located on the outside of one end of the cable core tube that protrudes from the cable sleeve and is sleeved with the cable core tube. The end of the sleeve end away from the cable sleeve is limited and connected to the cable core tube by a limiting rubber ring. The return spring is located inside the sleeve end, and its two ends abut against the sleeve end and the cable core tube respectively. The waterproof sheath is located between the anchoring end sleeve and the sleeve end, and one end of the waterproof sheath is sleeved with the anchoring end sleeve. The end of the waterproof sheath away from the anchoring end sleeve is snapped into the sleeve end. The interior of the waterproof sheath is provided with a movable cavity corresponding to the sleeve end.

[0011] The connection mechanism includes a connecting sleeve and a connecting end. The connecting sleeve is disposed on the outside of the connecting cable away from the cable sleeve and is sleeved with the corresponding connecting cable. The connecting end is disposed on the end of the connecting sleeve close to the cable sleeve and is integrally formed with the connecting sleeve. The outer side of the connecting end is arranged correspondingly to the inner wall of the end of the cable core tube away from the cable sleeve.

[0012] It also includes a connecting retainer ring, which is disposed at the connection between the connecting end and the connecting sleeve and is integrally formed with the connecting sleeve. The outer side of the connecting end is provided with a limiting groove corresponding to the limiting ball, and the connecting end is inserted into the cable core tube.

[0013] The core mechanism includes a core base ring, a core base, and a core connector. The core base ring is disposed inside the connecting end or the cable core tube and is engaged with the corresponding connecting end or the cable core tube through a mounting groove. The core base is disposed on one side of the core base ring and one end of it is engaged with the core base ring. The core connector is disposed inside the core base corresponding to the connecting cable and is inserted into the core base. One end of the core connector is fixedly connected to the connecting cable, and the end of the core connector away from the connecting cable protrudes from the corresponding connecting end or the cable core tube.

[0014] It also includes a top holding spring and a limiting ring. The top holding spring is disposed between the core base and the core connector, and its two ends abut against the core base and the core connector respectively. The limiting ring is disposed at the end of the core connector away from the core base and is sleeved with the core connector. The core connector is limited and connected to the corresponding connection end or the cable core tube through the limiting ring.

[0015] The wire core mechanism is provided in two sets. The two sets of wire core mechanisms are respectively located on the inner side of the connection end and the cable core tube, and the two sets of connecting cables are connected through the two sets of wire core mechanisms.

[0016] The beneficial effects of this utility model are:

[0017] Equipped with a sleeve mechanism, the waterproof sheath structure prevents water ingress at the sleeve connection and meets the operational requirements of the sleeve end, effectively improving the connector's waterproof performance. It also features a connection mechanism that works in conjunction with the wire core mechanism, enabling quick plugging and unplugging of the sleeve mechanism and the connection mechanism. This results in high connection efficiency, reduces the likelihood of loosening, and allows for quick disassembly and assembly for easy maintenance and disassembly, offering high flexibility in use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the waterproof connector of this utility model;

[0020] Figure 3 This is a cross-sectional view of the waterproof sheath of this utility model.

[0021] In the diagram: 1. Connecting cable; 2. Cable sleeve; 3. Cable core tube; 4. Anchoring end sleeve; 5. Limiting ball; 6. Anti-detachment retaining ring; 7. Sleeve end; 8. Return spring; 9. Waterproof sheath; 10. Connecting sleeve; 11. Connecting end; 12. Connecting retaining ring; 13. Core base ring; 14. Core base; 15. Core connector; 16. Supporting spring; 17. Limiting ring. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] A waterproof connector for electric vehicles includes two sets of connecting cables 1. It also includes a sleeve mechanism for forming a waterproof sheath structure, a connecting mechanism for forming a quick-connect structure, and a core mechanism for forming a buffered mating structure. The sleeve mechanism is located on the outer side of one end of one set of connecting cables 1, and the connecting mechanism is located on the outer side of one end of the other set of connecting cables 1, corresponding to the sleeve mechanism. The core mechanism is assembled inside the sleeve mechanism and the connecting mechanism. A schematic diagram of the overall structure of this invention is shown below. Figure 1 As shown.

[0024] The conduit mechanism includes a cable sleeve 2, a cable core tube 3, an anchoring end sleeve 4, and a waterproof component. The cable sleeve 2 is positioned outside one set of connecting cables 1 and is sleeved onto the corresponding connecting cable 1. The cable core tube 3 is positioned at one end of the cable sleeve 2 and is inserted into the cable sleeve 2, with one end of the cable core tube 3 protruding from the end of the cable sleeve 2. The anchoring end sleeve 4 is positioned on the outside of the end of the cable sleeve 2 corresponding to the cable core tube 3 and is riveted to the cable sleeve 2. Both the anchoring end sleeve 4 and the portion of the cable core tube 3 inserted into the cable sleeve 2 are designed with a corrugated anti-detachment structure. The conduit mechanism, through the cable sleeve 2, cable core tube 3, and anchoring end sleeve 4, ... Together with waterproof components, they form a waterproof sleeve structure, thereby improving the waterproof performance of the connecting cable 1. The cable sleeve 2 provides installation support for the cable core tube 3, and the cable core tube 3, together with the cable sleeve 2, forms a combined tube structure, thus providing installation support for the connecting cable 1. The anchoring end sleeve 4 is used to achieve an anchoring connection between the cable sleeve 2 and the cable core tube 3. The waterproof components serve as a waterproof structure between the cable sleeve 2 and the cable core tube 3, preventing water from entering the tube body through the connection between the cable sleeve 2 and the cable structure, thus preventing water ingress. A cross-sectional view of this waterproof connector is shown below. Figure 2 As shown.

[0025] It also includes limiting balls 5 and anti-detachment retaining rings 6. Several limiting balls 5 are provided, and they are set on the side of the end of the cable core tube 3 that protrudes from the cable sleeve 2 and are embedded and connected to the cable core tube 3. Part of the limiting balls 5 protrudes from the inner wall of the cable core tube 3. Two sets of anti-detachment retaining rings 6 are provided, and the two sets of anti-detachment retaining rings 6 are set side by side at intervals on the inner side of the end of the cable core tube 3 that protrudes from the cable sleeve 2 and are embedded and connected to the inner wall of the cable core tube 3 through the mounting groove. Part of the anti-detachment retaining rings 6 protrudes from the inner wall of the cable core tube 3. The limiting balls 5 are used as limiting and locking structures on the cable core tube 3, thereby realizing the insertion and locking between the connecting mechanism and the cable core tube 3. The anti-detachment retaining rings 6 are used as anti-detachment structures on the inner side of the cable core tube 3, improving the protection effect between the cable core tube 3 and the connecting mechanism, and further improving the connection stability between the two.

[0026] The waterproof assembly includes a sleeve end 7, a return spring 8, and a waterproof sheath 9. The sleeve end 7 is located on the outside of the end of the cable core tube 3 that protrudes from the cable sleeve 2 and is sleeved with the cable core tube 3. The end of the sleeve end 7 away from the cable sleeve 2 is connected to the cable core tube 3 by a limiting rubber ring. The return spring 8 is located inside the sleeve end 7, and its two ends abut against the sleeve end 7 and the cable core tube 3, respectively. The waterproof sheath 9 is located between the anchor end sleeve 4 and the sleeve end 7, and one end of the waterproof sheath 9 is sleeved with the anchor end sleeve 4. The end of the waterproof sheath 9 away from the anchor end sleeve 4 is fitted and snapped into the sleeve end 7. The interior of the waterproof sheath 9 corresponds to the sleeve end 7. A movable cavity is provided. The waterproof component, through the cooperation of the sleeve end 7, the return spring 8, and the waterproof sheath 9, forms a waterproof structure between the cable sleeve 2 and the cable core tube 3 to prevent water from entering the tube body through the connection between the cable sleeve 2 and the cable structure. The sleeve end 7 serves as a resettable end structure at the end of the cable core tube 3. The return spring 8 provides elastic support for the sleeve end 7 to meet its reset requirements. The waterproof sheath 9 serves as a waterproof structure between the sleeve end 7 and the anchoring end sleeve 4 to prevent water from entering the sleeve through the connection of the sleeve mechanism. A cross-sectional view of the waterproof sheath 9 of this utility model is shown below. Figure 3 As shown.

[0027] The connecting mechanism includes a connecting sleeve 10 and a connecting end 11. The connecting sleeve 10 is located on the outside of the connecting cable 1 away from the cable sleeve 2 and is sleeved with the corresponding connecting cable 1. The connecting end 11 is located at the end of the connecting sleeve 10 close to the cable sleeve 2 and is integrally formed with the connecting sleeve 10. The outer side of the connecting end 11 is arranged correspondingly to the inner wall of the end of the cable core tube 3 away from the cable sleeve 2. The connecting mechanism, through the cooperation of the connecting sleeve 10 and the connecting end 11, forms a connecting plug structure for quick insertion and removal with the cable core tube 3, thereby realizing quick assembly and disassembly connection between the two sets of connecting cables 1. The connecting sleeve 10 is used to provide installation support for the connecting end 11, and the connecting end 11 is used together with the connecting sleeve 10 to form a connecting plug structure for quick insertion and removal with the cable core tube 3.

[0028] It also includes a connecting retaining ring 12, which is disposed at the connection between the connecting end 11 and the connecting sleeve 10 and is integrally formed with the connecting sleeve 10. The outer side of the connecting end 11 is provided with a limiting groove corresponding to the limiting ball 5. The connecting end 11 is inserted into the cable core tube 3. The connecting retaining ring 12 is used as a retaining ring structure between the connecting end 11 and the connecting sleeve 10, thereby limiting the connection mechanism when the connecting end 11 is inserted into the cable core tube 3.

[0029] The core mechanism includes a core base ring 13, a core base 14, and a core connector 15. The core base ring 13 is disposed inside the connection end 11 or the cable core tube 3 and is engaged with the corresponding connection end 11 or the cable core tube 3 through a mounting groove. The core base 14 is disposed on one side of the core base ring 13, and one end of it is engaged with the core base ring 13. The core connector 15 is disposed inside the core base 14 corresponding to the connecting cable 1 and is inserted into the core base 14. One end of the core connector 15 is fixedly connected to the connecting cable 1, and the end of the core connector 15 away from the connecting cable 1 protrudes from the corresponding connection end 11 or the cable core tube 3. There are two sets of core mechanisms, and the two sets of core mechanisms are respectively disposed on the connection end 11. The inner side of the cable core tube 3 and the two sets of connecting cables 1 are connected by two sets of wire core mechanisms. The wire core mechanism, through the cooperation of the wire core base ring 13, the wire core base 14 and the wire core connector 15, forms the wire core structure inside the connecting mechanism and the sleeve mechanism, thereby assembling the connecting cable 1 inside the connecting mechanism and the sleeve mechanism, and realizing the installation connection between the two sets of connecting cables 1 under the action of the connecting mechanism and the sleeve mechanism. The wire core base ring 13 is used as the base ring structure inside the connecting end 11 or the cable core tube 3, thereby providing installation support for the wire core base 14. The wire core base 14 is used to provide installation support for the wire core connector 15. The wire core connector 15 is used as the connection structure at the end of the connecting cable 1.

[0030] It also includes a top holding spring 16 and a limiting ring 17. The top holding spring 16 is disposed between the core base 14 and the core connector 15, with its two ends abutting against the core base 14 and the core connector 15 respectively. The limiting ring 17 is disposed at the end of the core connector 15 away from the core base 14 and is sleeved with the core connector 15. The core connector 15 is limited and connected to the corresponding connection end 11 or cable core tube 3 through the limiting ring 17. The top holding spring 16 is used to provide top holding support for the core connector 15, and the limiting ring 17 is used to limit and protect the core connector 15, thereby preventing the core connector 15 from coming off the connection end 11 or cable core tube 3 and avoiding rigid collision between the core connector 15 and the corresponding component.

[0031] Working principle:

[0032] Two sets of connecting cables 1 are respectively arranged inside the sleeve mechanism and the connecting mechanism through two sets of wire core mechanisms. During operation, the connecting mechanism is inserted into the sleeve mechanism, the connecting end 11 is located inside the cable core tube 3, the limiting ball 5 is located in the limiting groove, and the part of the anti-detachment ring 6 protruding from the inner wall of the cable core tube 3 abuts against the side of the connecting end 11, thus realizing the connection between the two sets of connecting cables 1. When it is necessary to remove the connecting mechanism from the sleeve mechanism, the sleeve end 7 can be pushed towards the anchoring end sleeve 4 so that the groove on the inner side of the sleeve end corresponds to the limiting ball 5, and the connecting end 11 can be pulled out from the cable core tube 3. Alternatively, the connecting mechanism can be pulled out directly from the sleeve mechanism without pushing the sleeve end 7, but this disassembly and assembly method requires a large pulling force and may damage the connecting end 11 after repeated use of this disassembly and assembly method. Over time, this may easily cause the connecting mechanism to loosen.

[0033] The beneficial effects of this utility model are that it is equipped with a sleeve mechanism, which can prevent water from entering at the sleeve connection and meet the action requirements of the sleeve end, effectively improving the waterproof effect of the connector. It is equipped with a connection mechanism that works with the wire core mechanism to realize quick plugging and unplugging connection between the sleeve mechanism and the connection mechanism. The connection efficiency is high, and it is not easy to loosen. It can also be quickly disassembled to facilitate the disassembly and maintenance work in the future, and has strong flexibility of use.

[0034] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A waterproof connector for electric vehicles, comprising a connecting cable (1), wherein the connecting cable (1) is provided in two sets, characterized in that, It also includes a sleeve mechanism for forming a waterproof sleeve structure, a connection mechanism for forming a quick-connection structure, and a core mechanism for forming a buffered docking structure. The sleeve mechanism is arranged on the outside of one end of one set of the connecting cables (1), and the connection mechanism is arranged on the outside of one end of another set of the connecting cables (1) corresponding to the sleeve mechanism. The core mechanism is assembled on the inside of the sleeve mechanism and the connection mechanism.

2. The waterproof connector for electric vehicles as described in claim 1, characterized in that, The conduit mechanism includes a cable conduit (2), a cable core tube (3), an anchoring end sleeve (4), and a waterproof component. The cable conduit (2) is disposed on the outside of one of the connecting cables (1) and is sleeved with the corresponding connecting cable (1). The cable core tube (3) is disposed at one end of the cable conduit (2) and is inserted into the cable conduit (2). One end of the cable core tube (3) protrudes from the end of the cable conduit (2). The anchoring end sleeve (4) is disposed on the outside of the end of the cable conduit (2) corresponding to the cable core tube (3) and is riveted to the cable conduit (2).

3. A waterproof connector for electric vehicles as described in claim 2, characterized in that, The anchoring end sleeve (4) and the part where the cable core tube (3) is inserted into the cable sleeve (2) are both designed with a wave-shaped anti-detachment structure.

4. A waterproof connector for electric vehicles as described in claim 3, characterized in that, It also includes a limiting ball (5) and an anti-detachment retaining ring (6). There are several limiting balls (5). Several limiting balls (5) are disposed on the side of one end of the cable core tube (3) that protrudes from the cable sleeve (2) and are embedded in the cable core tube (3). Part of the limiting ball (5) protrudes from the inner wall of the cable core tube (3). There are two sets of anti-detachment retaining rings (6). The two sets of anti-detachment retaining rings (6) are disposed side by side at intervals on the inner side of one end of the cable core tube (3) that protrudes from the cable sleeve (2) and are embedded in the inner wall of the cable core tube (3) through the mounting groove. Part of the anti-detachment retaining ring (6) protrudes from the inner wall of the cable core tube (3).

5. A waterproof connector for electric vehicles as described in claim 4, characterized in that, The waterproof assembly includes a sleeve end (7), a return spring (8), and a waterproof sheath (9). The sleeve end (7) is located on the outside of one end of the cable core tube (3) that protrudes from the cable sleeve (2) and is sleeved with the cable core tube (3). The end of the sleeve end (7) away from the cable sleeve (2) is limited and connected to the cable core tube (3) by a limiting rubber ring. The return spring (8) is located inside the sleeve end (7) and its two ends abut against the sleeve end (7) and the cable core tube (3) respectively. The waterproof sheath (9) is located between the anchor end sleeve (4) and the sleeve end (7) and one end of it is sleeved with the anchor end sleeve (4). The end of the waterproof sheath (9) away from the anchor end sleeve (4) is fitted and snapped with the sleeve end (7). The interior of the waterproof sheath (9) is provided with a movable cavity corresponding to the sleeve end (7).

6. A waterproof connector for electric vehicles as described in claim 5, characterized in that, The connection mechanism includes a connecting sleeve (10) and a connecting end (11). The connecting sleeve (10) is located on the outside of the connecting cable (1) away from the cable sleeve (2) and is sleeved with the corresponding connecting cable (1). The connecting end (11) is located at one end of the connecting sleeve (10) near the cable sleeve (2) and is integrally formed with the connecting sleeve (10). The outside of the connecting end (11) is arranged corresponding to the inner wall of the end of the cable core tube (3) away from the cable sleeve (2).

7. A waterproof connector for electric vehicles as described in claim 6, characterized in that, It also includes a connecting ring (12), which is disposed at the connection between the connecting end (11) and the connecting sleeve (10) and is integrally formed with the connecting sleeve (10). The outer side of the connecting end (11) is provided with a limiting groove corresponding to the limiting ball (5). The connecting end (11) is inserted into the cable core tube (3).

8. A waterproof connector for electric vehicles as described in claim 7, characterized in that, The core mechanism includes a core base ring (13), a core base (14), and a core connector (15). The core base ring (13) is disposed inside the connection end (11) or the cable core tube (3) and is engaged with the corresponding connection end (11) or the cable core tube (3) through a mounting groove. The core base (14) is disposed on one side of the core base ring (13) and one end of it is engaged with the core base ring (13). The core connector (15) is disposed inside the core base (14) corresponding to the connecting cable (1) and is inserted into the core base (14). One end of the core connector (15) is fixedly connected to the connecting cable (1), and the end of the core connector (15) away from the connecting cable (1) protrudes from the corresponding connection end (11) or the cable core tube (3).

9. A waterproof connector for electric vehicles as described in claim 8, characterized in that, It also includes a top holding spring (16) and a limiting ring (17). The top holding spring (16) is disposed between the core base (14) and the core connector (15), and its two ends abut against the core base (14) and the core connector (15) respectively. The limiting ring (17) is disposed at the end of the core connector (15) away from the core base (14) and is sleeved with the core connector (15). The core connector (15) is limited and connected to the corresponding connection end (11) or the cable core tube (3) through the limiting ring (17).

10. A waterproof connector for electric vehicles as described in claim 9, characterized in that, The wire core mechanism is provided in two sets. The two sets of wire core mechanisms are respectively located inside the connection end (11) and the cable core tube (3), and the two sets of connection cables (1) are connected through the two sets of wire core mechanisms.

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