High-voltage connector, power battery pack and vehicle

Abstract

The utility model discloses a high-voltage connector, a power battery pack and a vehicle, a power terminal assembly of the high-voltage connector comprises a terminal strip, a first conductive terminal and a second conductive terminal, the first conductive terminal and the second conductive terminal are arranged at two ends of the terminal strip, and through holes are arranged in the first conductive terminal and the second conductive terminal along the direction of a central axis. A connecting piece is arranged in the through hole of the first conductive terminal in a penetrating mode, internal threads are arranged on the inner wall of the through hole of the second conductive terminal, the first conductive terminal is connected with a copper bar in a power battery pack through the connecting piece, the second conductive terminal is connected with a matched connector through the internal threads, and therefore convenient installation of the high-voltage connector can be achieved. The device is especially suitable for being installed in a narrow space in a battery pack.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage connectors, and in particular to a high-voltage connector, a power battery pack and a vehicle. Background Art

[0002] As an important power source for the vehicle, the battery pack has several high-voltage connectors on the outside. The battery pack is suitable for transmitting electrical energy to the electrical parts of the vehicle through the high-voltage connectors to ensure the normal operation of various components of the vehicle.

[0003] In the related art, when installing the high-voltage connector, the high-voltage connectors are first installed one by one on the battery pack housing, and then the copper busbar or wiring harness inside the battery pack is connected to the high-voltage connector. Finally, the electrical components of the vehicle are plugged into the high-voltage connector through the high-voltage plug to realize the battery pack to supply power to the electrical components of the vehicle. In the installation method of the high-voltage connector, due to the overall volume of the battery pack, and the high-voltage connector has been fixed on the battery pack housing and cannot be moved inside the battery pack housing, it is necessary to connect the copper busbar or wiring harness with the high-voltage connector in the narrow space inside the battery pack, which is inconvenient to install and affects the assembly efficiency.

[0004] Therefore, there is an urgent need to provide a high-voltage connector structure suitable for installation in a narrow space in a battery pack. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a high-voltage connector, a power battery pack and a vehicle to solve the technical problems mentioned in the background technology.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a high-voltage connector, including a shell, a signal terminal assembly arranged in the shell and two groups of power terminal assemblies, the power terminal assembly includes a terminal row and a first conductive terminal and a second conductive terminal arranged at both ends of the terminal row and respectively exposed from the shell, the first conductive terminal and the second conductive terminal are both cylindrical, and the first conductive terminal and the second conductive terminal both have through holes arranged along the central axis direction, a connecting piece is penetrated in the through hole of the first conductive terminal, and an internal thread is arranged on the inner wall of the through hole of the second conductive terminal.

[0007] In some embodiments, the terminal block includes a first terminal block for mounting a first conductive terminal, a second terminal block for mounting a second conductive terminal, and a conductive block for connecting the first terminal block and the second terminal block.

[0008] In some embodiments, the shell includes a base plate, a first upper shell covered on the base plate, and two second upper shells respectively mounted on the outside of the second terminal row and part of the conductive row of the two groups of power terminal assemblies, and both second upper shells are provided with a second window to expose the second conductive terminal, and the base plate is provided with a first window to expose the first conductive terminal of the two groups of power terminal assemblies.

[0009] In some embodiments, the conductive bus is a soft copper bus.

[0010] In some embodiments, the first terminal row and the second terminal row are both angle steel structures, one end of which is overlapped to the conductive row, and the other end is suspended, and a mounting hole for mounting the first conductive terminal and the second conductive terminal is opened on the suspended end.

[0011] In some embodiments, the conductive bar is connected to the first terminal bar and the second terminal bar by welding, and the first terminal bar and the second terminal bar are distributed on the same side or different sides of the conductive bar.

[0012] In some embodiments, the second upper housing includes a first portion and a second portion that are disposed opposite to each other, and the first portion and the second portion together clamp the second terminal row and a portion of the conductive row on the inner sides thereof;

[0013] The first part is provided with the second window, and the second part is formed with a protective sleeve for facilitating the installation of the connecting piece.

[0014] In some embodiments, the first part and the second part, as well as the bottom plate and the first upper shell, are all detachably connected by snap-fit ​​connections.

[0015] In some embodiments, a clamping member for fixing the high-voltage connector is provided on the outer wall of the first upper shell.

[0016] A power battery pack of the utility model comprises a battery pack shell, a battery module installed inside the battery pack shell and the above-mentioned high-voltage connector, wherein the copper busbar of the battery module is connected to the connecting piece so that the second conductive terminal is attached to and conductively connected to the end surface of the copper busbar of the battery module.

[0017] In some embodiments, the connecting member is a bolt, and a threaded hole is formed on the copper busbar of the battery module.

[0018] A vehicle of the utility model comprises the above-mentioned power battery pack.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: the power terminal assembly of the high-voltage connector of the utility model includes a terminal row and a first conductive terminal and a second conductive terminal arranged at both ends of the terminal row, the first conductive terminal and the second conductive terminal both have through holes arranged along the central axis direction, a connecting piece is passed through the through hole of the first conductive terminal, an internal thread is arranged on the inner wall of the through hole of the second conductive terminal, the first conductive terminal is connected to the copper busbar in the power battery pack through the connecting piece, and the second conductive terminal is connected to the matching connector through the internal thread, thereby realizing convenient installation of the high-voltage connector, which is particularly suitable for installation in a narrow space in a battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] Figure 1 A schematic diagram of the structure of the high-voltage connector provided by the utility model;

[0022] Figure 2 for Figure 1 An exploded schematic diagram of the high voltage connector shown;

[0023] Figure 3 for Figure 1 A schematic diagram of the internal structure of the high voltage connector shown;

[0024] Figure 4 for Figure 1 A schematic diagram showing the positional relationship between the second upper housing and the terminal row in the high voltage connector;

[0025] Figure 5 for Figure 1 The installation diagram of the high voltage connector is shown.

[0026] The following are marked in the figure:

[0027] 1. Shell; 2. Power terminal assembly; 3. Signal terminal assembly; 4. High voltage connector; 5. Copper busbar; 6. Threaded hole; 7. Mating connector;

[0028] 40, terminal row; 401, first terminal row; 402, second terminal row; 403, conductive row; 404, first conductive terminal; 405, second conductive terminal; 406, connector; 407, mounting hole; 408, through hole;

[0029] 50. Bottom plate;

[0030] 60. first upper housing; 601. snap-fitting member;

[0031] 70. Second upper shell; 701. Second window; 702. First part; 703. Second part; 704. Protective sleeve. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0036] A high voltage connector, such as Figure 1-Figure 4 As shown, it includes a shell 1, a signal terminal assembly 3 arranged in the shell 1 and two groups of power terminal assemblies 2, the power terminal assembly 2 includes a terminal row 40 and a first conductive terminal 404 and a second conductive terminal 405 arranged at both ends of the terminal row and exposed from the shell 1 respectively, the first conductive terminal 404 and the second conductive terminal 405 are both cylindrical, and the first conductive terminal 404 and the second conductive terminal 405 have a through hole 408 arranged along the central axis direction. A connecting piece 406 is inserted into the through hole 408 of the first conductive terminal 404, and an internal thread is arranged on the inner wall of the through hole 408 of the second conductive terminal 405. The first conductive terminal 404 is threadedly connected to the copper bar 5 in the power battery pack through the connecting piece 406. Specifically, the connecting piece 406 is a bolt, and a threaded hole 6 is opened on the copper bar 5 of the battery module. After the first conductive terminal 404 is connected to the copper bar 5 of the battery module, the end faces of the two are attached and conductively connected, and the second conductive terminal 405 is connected to the matching connector 7 (specifically a plug connector with a bolt connector) through the internal thread. For details, please refer to Figure 5 , which enables convenient installation of high-voltage connectors, especially suitable for installation in the narrow space inside the battery pack.

[0037] In one embodiment, if Figure 3 and Figure 4As shown, the terminal row 40 includes a first terminal row 401 for installing a first conductive terminal 404, a second terminal row 402 for installing a second conductive terminal 405, and a conductive row 403 for connecting the first terminal row 401 and the second terminal row 402. The above-mentioned split structure, relative to the single row structure of the existing high-voltage connector terminal row, can change the direction of the incoming and outgoing lines of the high-voltage connector, thereby having a switching function, which is convenient for use in the narrow space in the battery pack.

[0038] like Figure 1 and Figure 2 As shown, the housing 1 includes a bottom plate 50, a first upper housing 60 covered on the bottom plate 50, and two second upper housings 70 respectively sleeved on the outside of the second terminal row 402 and part of the conductive row 403 of the two sets of power terminal assemblies 2, and the two second upper housings 70 are both provided with a second window 701 for exposing the second conductive terminal 405, and the bottom plate 50 is provided with a first window for exposing the first conductive terminal 404 of the two sets of power terminal assemblies. The split setting of the housing 1, on the one hand, facilitates the assembly of the high-voltage connector of the utility model, and on the other hand, also has a better heat dissipation effect.

[0039] Furthermore, the conductive bar 403 is a soft copper bar, so that when the high-voltage connector is installed, both ends of the high-voltage connector can be twisted to a certain extent, thereby having good installation adaptability.

[0040] In one embodiment, if Figure 3 and Figure 4 As shown, the first terminal row 401 and the second terminal row 402 are both angle steel structures, one end of which is overlapped to the conductive row 403, and the other end is suspended, and a mounting hole 407 for mounting the first conductive terminal 404 and the second conductive terminal 405 is opened on the suspended end. The conductive row 403 and the first terminal row 401 and the second terminal row 402 are all welded, and the first terminal row 401 and the second terminal row 402 are distributed on the same side or different sides of the conductive row 403. Considering the rationality of the layout in the high-voltage connector, the first terminal row 401 and the second terminal row 402 are specifically arranged on different sides of the conductive row 403. The second upper shell 70 includes a first part 702 and a second part 703 arranged opposite to each other, and the first part 702 and the second part 703 jointly clamp the second terminal row 402 and part of the conductive row 403 on the inner side of the first part 702; the first part 702 has a second window 701, and the second part 703 is formed with a protective sleeve 704 for facilitating the installation of the connector 406. The first part 702 and the second part 703 as well as the bottom plate 50 and the first upper shell 60 are all detachably connected by snap-fit ​​connections.

[0041] In one embodiment, if Figure 1As shown, a clamping member 601 for fixing the high-voltage connector is provided on the outer wall of the first upper shell 60. Before the high-voltage connector is connected to the power battery pack, the high-voltage connector is first clamped and connected to the vehicle body or the power battery pack through the clamping member 601 to achieve precise positioning. Then, the first conductive terminal 404 is threadedly connected to the copper bus 5 in the power battery pack through the connecting member 406 to achieve the installation of the high-voltage connector of the utility model. For details, please refer to Figure 5 , which enables convenient installation of high-voltage connectors, especially suitable for installation in the narrow space inside the battery pack.

[0042] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A high voltage connector, comprising a housing, a signal terminal assembly disposed in the housing, and two sets of power terminal assemblies, wherein the power terminal assembly comprises a terminal row and a first conductive terminal and a second conductive terminal disposed at both ends of the terminal row and respectively exposed from the housing, wherein the first conductive terminal and the second conductive terminal are both cylindrical, and characterized in that: The first conductive terminal and the second conductive terminal both have through holes arranged along the central axis. A connecting piece is inserted into the through hole of the first conductive terminal, and an internal thread is arranged on the inner wall of the through hole of the second conductive terminal.

2. A high voltage connector according to claim 1, characterized in that: The terminal row comprises a first terminal row for mounting a first conductive terminal, a second terminal row for mounting a second conductive terminal, and a conductive row for connecting the first terminal row and the second terminal row.

3. A high voltage connector according to claim 2, characterized in that: The shell includes a base plate, a first upper shell covered on the base plate, and two second upper shells respectively sleeved on the second terminal row and part of the conductive row outside of the two groups of power terminal assemblies, and the two second upper shells are each provided with a second window for exposing the second conductive terminal, and the base plate is provided with a first window for exposing the first conductive terminal of the two groups of power terminal assemblies.

4. A high voltage connector according to claim 3, characterized in that: The conductive bar is a soft copper bar.

5. A high voltage connector according to claim 2, characterized in that: The first terminal row and the second terminal row are both angle steel structures, one end of which is overlapped to the conductive row, and the other end is suspended, and a mounting hole for mounting the first conductive terminal and the second conductive terminal is opened on the suspended end.

6. A high voltage connector according to claim 2, characterized in that: The conductive bar is connected to the first terminal bar and the second terminal bar by welding, and the first terminal bar and the second terminal bar are distributed on the same side or different sides of the conductive bar.

7. A high voltage connector according to claim 3, characterized in that: The second upper housing comprises a first part and a second part which are arranged opposite to each other, and the first part and the second part jointly clamp the second terminal row and part of the conductive row on the inner sides thereof; The first part is provided with the second window, and the second part is formed with a protective sleeve for facilitating the installation of the connecting piece.

8. A high voltage connector according to claim 7, characterized in that: The first part and the second part as well as the bottom plate and the first upper shell are all connected by detachable snap-fit ​​connections.

9. The high voltage connector according to claim 3, characterized in that: A clamping piece for fixing the high-voltage connector is arranged on the outer wall of the first upper shell.

10. A power battery pack, characterized in that: It comprises a battery pack shell, a battery module installed inside the battery pack shell, and the high-voltage connector according to any one of claims 1 to 9, wherein the copper busbar of the battery module is connected to the connecting piece so that the second conductive terminal is in contact with and conductively connected to the end surface of the copper busbar of the battery module.

11. A power battery pack according to claim 10, characterized in that: The connecting piece is a bolt, and a threaded hole is provided on the copper busbar of the battery module.

12. A vehicle, characterized in that: A power battery pack comprising any one of claims 10-11.

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