Parallel connection device assembly for parallel connection of multiple groups of batteries of electric vehicle

Abstract

The utility model belongs to the technical field of paralleling devices, and relates to a paralleling device assembly for parallel connection of multiple groups of batteries of an electric vehicle. The parallel connection device comprises a parallel connection device body, two first connection cables are fixedly connected to the parallel connection device body, parallel connection connectors are fixedly connected to the ends, away from the parallel connection device body, of the two first connection cables, a second connection cable is fixedly connected to the parallel connection device body, and a cover shell is fixedly connected to the lower side of the parallel connection device body. A radiator is fixedly connected to the side wall of the upper side of the parallel connection device body, and a sealing gasket is arranged between the radiator and the cover shell. The parallel connection device assembly can assist the parallel connection device main body in rapid heat dissipation, effectively reduces the operation temperature of the parallel connection device main body, effectively improves the performance stability of the parallel connection device assembly, and can improve the discharge performance of batteries after parallel connection.

Description

Technical Field

[0001] This utility model belongs to the field of parallel connector technology and relates to a parallel connector assembly for connecting multiple battery packs in parallel in electric vehicles. Background Art

[0002] A high-speed train is a vehicle that uses batteries as its energy source and converts electrical energy into mechanical energy for movement through components such as controllers and motors. Speed ​​is adjusted by controlling the magnitude of the current. Electric vehicles are a widely used mode of transportation. They require multiple battery packs as energy storage, and these packs need to be connected in parallel using a parallel connector to allow them to be used together.

[0003] Existing battery parallel connection components generate a lot of heat during use due to the large amount of current flowing through them. This causes the temperature of the parallel connection components to rise, which can affect the performance stability of the parallel connection components and thus the discharge performance of the battery. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a parallel connector assembly for multiple battery packs in parallel in electric vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A parallel connector assembly for connecting multiple batteries in parallel in an electric vehicle includes a parallel connector body. Two first connecting cables are fixedly connected to the parallel connector body, and a parallel connector is fixedly connected to the end of each of the two first connecting cables away from the parallel connector body. A second connecting cable is fixedly connected to the parallel connector body. A cover is fixedly connected to the lower side of the parallel connector body. A radiator is fixedly connected to the upper side wall of the parallel connector body. A sealing gasket is provided between the radiator and the cover.

[0007] In the above-mentioned parallel connector assembly for multiple batteries in electric vehicles, the radiator includes a heat-conducting plate, which is tightly attached to the upper side of the main body of the parallel connector. Multiple heat dissipation fins are uniformly fixedly connected to the side wall of the upper side of the heat-conducting plate. The heat dissipation fins are integrally formed with the heat-conducting plate, and gaps are provided between the multiple heat dissipation fins.

[0008] In the above-mentioned parallel connector assembly for multiple batteries in electric vehicles, the cover includes a concave cover plate, a skirt plate is fixedly connected to the concave cover plate, a plurality of mounting holes are evenly opened on the skirt plate, a first locking screw is threaded into the mounting holes, two first semi-circular slots corresponding to the first connecting cable are provided on the left side of the concave cover plate, and a second semi-circular slot corresponding to the second connecting cable is provided on the right side of the concave cover plate.

[0009] In the above-mentioned parallel connector assembly for multiple batteries in electric vehicles, the sealing gasket includes a rectangular rubber ring. Two first rubber rings corresponding to the first semi-circular groove are fixedly connected to the rectangular rubber ring. The first rubber rings are movably sleeved outside the first connecting cable. A second rubber ring corresponding to the second semi-circular groove is fixedly connected to the rectangular rubber ring. The second rubber rings are movably sleeved outside the second connecting cable.

[0010] In the above-mentioned parallel connector assembly for multiple batteries in electric vehicles, the heat-conducting plate has multiple threaded holes, and a second locking screw is threaded into the threaded hole. The heat-conducting plate is fixedly connected to the parallel connector body by the second locking screw.

[0011] In the above-mentioned parallel connector assembly for multiple batteries in electric vehicles, the parallel connector includes a connector fixedly connected to the first connecting cable, and the upper side of the connector is fixedly connected to the parallel connector.

[0012] In the aforementioned parallel connector assembly for multiple batteries in electric vehicles, the heat-conducting plate and the heat dissipation fins are both made of aluminum.

[0013] In the aforementioned parallel connector assembly for multiple batteries in electric vehicles, both the first locking screw and the second locking screw are Phillips head screws.

[0014] In the aforementioned parallel connector assembly for multiple batteries in electric vehicles, the first rubber ring is interference-fitted with the first connecting cable, and the second rubber ring is interference-fitted with the second connecting cable.

[0015] In the above-mentioned parallel connector assembly for multiple batteries in electric vehicles, a rubber sleeve is fixedly connected between the connector and the first connecting cable.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This utility model, through the design of a parallel connector body, a first connecting cable, a parallel connector, a second connecting cable, a cover, a heat sink, and a sealing gasket, allows the parallel connector to be installed on two batteries, thus connecting the two batteries in parallel. The heat sink absorbs heat from the parallel connector body, and its own heat dissipation efficiency is more effective than that of the parallel connector body. This allows heat from the parallel connector body to be continuously transferred to the heat sink, thereby assisting the parallel connector body in rapid heat dissipation, effectively reducing the operating temperature of the parallel connector body, effectively improving the performance stability of the parallel connector assembly, and improving the discharge performance of the batteries after parallel connection.

[0018] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is the front view of this utility model.

[0021] Figure 3 This is a bottom view of the present invention.

[0022] Figure 4 yes Figure 1 A schematic diagram of the middle cover shell.

[0023] Figure 5 yes Figure 1 A schematic diagram of the structure of the heat sink.

[0024] Figure 6 yes Figure 1 A schematic diagram of the structure of the central sealing gasket.

[0025] Figure 7 yes Figure 1 A schematic diagram of the structure of the sealing gasket from another direction.

[0026] In the diagram: 1. Parallel connector body; 2. First connecting cable; 3. Parallel connector head; 4. Second connecting cable; 5. Cover; 6. Heat sink; 7. Sealing gasket; 8. Heat-conducting plate; 9. Heat dissipation fins; 10. Concave cover plate; 11. Skirt plate; 12. Mounting hole; 13. First locking screw; 14. First semi-circular groove; 15. Second semi-circular groove; 16. Rectangular rubber ring; 17. First rubber ring; 19. Second rubber ring; 20. Threaded hole; 21. Second locking screw; 22. Connecting seat; 23. Parallel connector head; 24. Rubber sleeve. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figure 1-7 As shown, a parallel connector assembly for multiple batteries in parallel in an electric vehicle includes a parallel connector body 1. Two first connecting cables 2 are fixedly connected to the parallel connector body 1. A parallel connector 3 is fixedly connected to the end of each of the two first connecting cables 2 away from the parallel connector body 1. A second connecting cable 4 is fixedly connected to the parallel connector body 1. A cover 5 is fixedly connected to the lower side of the parallel connector body 1. A radiator 6 is fixedly connected to the upper side wall of the parallel connector body 1. A sealing gasket 7 is provided between the radiator 6 and the cover 5.

[0029] In the above embodiment, during use, the parallel connector 3 is installed on two batteries, thereby enabling the two batteries to be connected in parallel. The heat sink 6 can absorb the heat on the parallel connector body 1, and the heat sink 6 itself has a higher heat dissipation efficiency than the parallel connector body 1. This allows the heat on the parallel connector body 1 to be continuously transferred to the heat sink 6, thereby assisting the parallel connector body 1 in rapid heat dissipation, effectively reducing the operating temperature of the parallel connector body 1, effectively improving the performance stability of the parallel connector assembly, and improving the discharge performance after the batteries are connected in parallel.

[0030] The radiator 6 includes a heat-conducting plate 8, which is tightly attached to the upper side of the parallel connector body 1. Multiple heat dissipation fins 9 are uniformly fixedly connected to the side wall of the upper side of the heat-conducting plate 8. The heat dissipation fins 9 are integrally formed with the heat-conducting plate 8, and gaps are provided between the multiple heat dissipation fins 9. The heat-conducting plate 8 can absorb the heat on the parallel connector body 1, and the multiple heat dissipation fins 9 can increase the heat dissipation area, thereby improving the heat dissipation efficiency of the radiator 6.

[0031] The cover 5 includes a concave cover plate 10, on which a skirt plate 11 is fixedly connected. The skirt plate 11 has a plurality of mounting holes 12 evenly distributed on it. A first locking screw 13 is threaded into each mounting hole 12. The left side of the concave cover plate 10 has two first semi-circular slots 14 corresponding to the first connecting cable 2, and the right side of the concave cover plate 10 has a second semi-circular slot 15 corresponding to the second connecting cable 4.

[0032] In the above embodiments, the cover 5 can protect the parallel connector body 1, thereby improving the dustproof and waterproof performance of the parallel connector body 1.

[0033] The sealing gasket 7 includes a rectangular rubber ring 16, on which two first rubber rings 17 corresponding to the first semi-circular groove 14 are fixedly connected. The first rubber rings 17 are movably sleeved outside the first connecting cable 2. The rectangular rubber ring 16 is fixedly connected to a second rubber ring 19 on the second semi-circular groove 15, and the second rubber ring 19 is movably sleeved outside the second connecting cable 4.

[0034] In this embodiment, the sealing gasket 7 can improve the sealing between the cover 5 and the parallel connector body 1, thereby improving the protective effect of the cover 5 on the parallel connector body 1.

[0035] The heat-conducting plate 8 has multiple threaded holes 20, and a second locking screw 21 is threaded into each threaded hole 20. The heat-conducting plate 8 is fixedly connected to the parallel connector body 1 by the second locking screw 21.

[0036] In the above embodiment, the multiple second locking screws 21 provided can improve the stability of the radiator 6 fixed installation.

[0037] The parallel connector 3 includes a connector 22 fixedly connected to the first connecting cable 2. A parallel connector 23 is fixedly connected to the upper side of the connector 22. In use, the parallel connector 23 can be installed on the battery to complete the installation of the parallel connector 3.

[0038] Both the heat-conducting plate 8 and the heat dissipation fins 9 are made of aluminum. Aluminum has good thermal conductivity, which can improve the heat dissipation efficiency of the heat sink 6.

[0039] Both the first locking screw 13 and the second locking screw 21 are Phillips head screws.

[0040] The first rubber ring 17 is interference-fitted with the first connecting cable 2, and the second rubber ring 19 is interference-fitted with the second connecting cable 4.

[0041] In the above embodiments, the sealing performance of the connection between the first connecting cable 2 and the second connecting cable 4 and the sealing gasket 7 can be improved.

[0042] A rubber sleeve 24 is fixedly connected between the connector 22 and the first connecting cable 2.

[0043] In this embodiment, the rubber sleeve 24 can protect the connection between the connector 22 and the first connecting cable 2, thereby improving the stability of the connection between the first connecting cable 2 and the connector 22.

[0044] The working principle of this utility model is as follows:

[0045] During assembly, the first connecting cable 2 and the second connecting cable 4 are installed on the parallel connector body 1. The first locking screw 13 and the second locking screw 21 are used to install the cover 5 and the heat sink 6 on the parallel connector body 1, so that the sealing gasket 7 is located between the cover 5 and the heat sink 6. In use, the parallel connector 3 is installed on the two batteries, so that the two batteries can be connected in parallel. The heat sink 6 can absorb the heat on the parallel connector body 1, and the heat sink 6 itself has a higher heat dissipation efficiency than the parallel connector body 1. This allows the heat on the parallel connector body 1 to be continuously transferred to the heat sink 6, thereby assisting the parallel connector body 1 in rapid heat dissipation, effectively reducing the operating temperature of the parallel connector body 1, effectively improving the performance stability of the parallel connector assembly, and improving the discharge performance after the batteries are connected in parallel.

[0046] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0047] Although this document frequently uses terms such as 1. Parallel connector body; 2. First connecting cable; 3. Parallel connector head; 4. Second connecting cable; 5. Cover; 6. Radiator; 7. Sealing gasket; 8. Heat-conducting plate; 9. Heat dissipation fins; 10. Concave cover plate; 11. Skirt plate; 12. Mounting hole; 13. First locking screw; 14. First semi-circular groove; 15. Second semi-circular groove; 16. Rectangular rubber ring; 17. First rubber ring; 19. Second rubber ring; 20. Threaded hole; 21. Second locking screw; 22. Connecting seat; 23. Parallel connector head; 24. Rubber sleeve, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A parallel connector assembly for multiple battery banks in parallel connection in an electric vehicle, comprising a parallel connector body (1), characterized in that, Two first connecting cables (2) are fixedly connected to the main body (1) of the parallel connector. A parallel connector (3) is fixedly connected to one end of each first connecting cable (2) away from the main body (1). A second connecting cable (4) is fixedly connected to the main body (1). A cover (5) is fixedly connected to the lower side of the main body (1). A radiator (6) is fixedly connected to the upper side wall of the main body (1). A sealing gasket (7) is provided between the radiator (6) and the cover (5).

2. The parallel connector assembly for multiple battery banks in electric vehicles according to claim 1, characterized in that, The radiator (6) includes a heat-conducting plate (8), which is tightly attached to the upper side of the parallel body (1). Multiple heat dissipation fins (9) are uniformly fixedly connected to the side wall of the upper side of the heat-conducting plate (8). The heat dissipation fins (9) are integrally formed with the heat-conducting plate (8), and gaps are provided between the multiple heat dissipation fins (9).

3. The parallel connector assembly for multiple battery banks in electric vehicles according to claim 2, characterized in that, The cover (5) includes a concave cover plate (10), on which a skirt plate (11) is fixedly connected. The skirt plate (11) is provided with a plurality of mounting holes (12) evenly distributed. The mounting holes (12) are internally threaded with a first locking screw (13). The left side of the concave cover plate (10) is provided with two first semi-circular slots (14) corresponding to the first connecting cable (2), and the right side of the concave cover plate (10) is provided with a second semi-circular slot (15) corresponding to the second connecting cable (4).

4. The parallel connector assembly for multiple battery banks in electric vehicles according to claim 3, characterized in that, The sealing gasket (7) includes a rectangular rubber ring (16), on which two first rubber rings (17) corresponding to the first semi-circular groove (14) are fixedly connected. The first rubber rings (17) are movably sleeved outside the first connecting cable (2). The rectangular rubber ring (16) is fixedly connected to a second rubber ring (19) on the second semi-circular groove (15), and the second rubber ring (19) is movably sleeved outside the second connecting cable (4).

5. The parallel connector assembly for multiple battery banks in electric vehicles according to claim 4, characterized in that, The heat-conducting plate (8) has multiple threaded holes (20), and a second locking screw (21) is threaded into the threaded hole (20). The heat-conducting plate (8) is fixedly connected to the parallel body (1) by the second locking screw (21).

6. The parallel connector assembly for multiple battery banks in parallel for electric vehicles according to claim 5, characterized in that, The parallel connector (3) includes a connector (22) fixedly connected to the first connecting cable (2), and a parallel connector (23) is fixedly connected to the upper side of the connector (22).

7. The parallel connector assembly for multiple battery banks in electric vehicles according to claim 6, characterized in that, The heat-conducting plate (8) and the heat dissipation fins (9) are both made of aluminum.

8. The parallel connector assembly for multiple battery banks in electric vehicles according to claim 7, characterized in that, Both the first locking screw (13) and the second locking screw (21) are Phillips head screws.

9. The parallel connector assembly for multiple battery banks in parallel for electric vehicles according to claim 8, characterized in that, The first rubber ring (17) is interference-fitted with the first connecting cable (2), and the second rubber ring (19) is interference-fitted with the second connecting cable (4).

10. The parallel connector assembly for multiple battery banks in electric vehicles according to claim 9, characterized in that, A rubber sleeve (24) is fixedly connected between the connector (22) and the first connecting cable (2).

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