High-voltage connector protection structure and battery pack

Abstract

The utility model provides a high-voltage connector protection structure and a battery pack, the high-voltage connector comprises a mounting seat, a first protection cover and a second protection cover; one end of the mounting seat is step-shaped and is provided with a first step surface and a second step surface, and the other end of the mounting seat is provided with a connector interface; the first step surface is provided with a first mounting hole for exposing the connecting end of one power connection bar, and the second step surface is provided with a second mounting hole for exposing the connecting end of the other power connection bar; the first protective cover is buckled at the first mounting hole, and the second protective cover is buckled at the second mounting hole. According to the high-voltage connector protection structure of the utility model, through the arrangement of the first protection cover and the second protection cover, the two protection covers can be buckled at the connection part of the copper bar and the power connection bar so as to form protection at the connection part of the copper bar and the power connection bar, and therefore, electric shock caused by direct contact between personnel and the exposed copper bar and the exposed connection bar can be prevented, and the safety of the personnel can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage connectors, in particular to a high-voltage connector protection structure.

[0002] The utility model also relates to a battery pack provided with the above-mentioned high-voltage connector protection structure. Background Art

[0003] With the rapid development of new energy technologies such as electric vehicles and energy storage systems, the safety and reliability of battery packs, as core components of these systems, are receiving increasing attention. High-voltage connectors, a crucial component of battery packs, connect copper busbars and connect battery modules to external circuits. In battery pack designs, high-voltage connectors are typically located externally or internally to ensure electrical connectivity between battery modules and between the battery pack and external power sources or loads.

[0004] The high-voltage connector's power busbar and the copper busbar it connects to are exposed directly inside the battery pack. Due to their high voltage and current characteristics, they present a serious safety hazard. Especially during battery pack installation, maintenance, or repair, if personnel accidentally touch the exposed copper busbar at the connection point, they could suffer an electric shock, seriously threatening their lives. Utility Model Content

[0005] In view of this, the present invention aims to provide a high-voltage connector protection structure that can protect the connection between the copper busbar and the power busbar to avoid electric shock to personnel and protect their safety.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] A high-voltage connector protection structure includes a mounting base, a first protection cover, and a second protection cover;

[0008] One end of the mounting seat is stepped and formed with a first step surface and a second step surface, and the other end of the mounting seat is formed with a connector interface;

[0009] The connector interface can be mounted on the high-voltage connector, and the two power bars on the high-voltage connector can be inserted into the mounting seat;

[0010] A first mounting hole for exposing a connection end of the power bar is provided on the first stepped surface, and a second mounting hole for exposing a connection end of the other power bar is provided on the second stepped surface;

[0011] The first protective cover is buckled on the first mounting hole, and the second protective cover is buckled on the second mounting hole.

[0012] Furthermore, the connector interface and the high-voltage connector are interference-fitted, and a deformation notch is formed on the side wall of the connector interface, which is formed by the high-voltage connector being recessed toward the mounting seat.

[0013] Furthermore, a plurality of clamping ribs are formed on the inner wall of the connector interface, and a plurality of guide grooves corresponding to the clamping ribs are formed on the high-voltage connector.

[0014] Furthermore, windows for the copper busbar to pass through are provided on the left and right side surfaces of the first protective cover and the second protective cover, as well as on the side surface away from the high-voltage connector.

[0015] Furthermore, each window is provided with a blocking piece, and the blocking piece is detachably connected to the window via a connecting piece.

[0016] Furthermore, a clamping portion is provided between the first protective cover, the second protective cover and the mounting seat; the clamping portion can detachably fix the first protective cover and the second protective cover on the mounting seat.

[0017] Furthermore, the clamping portion includes a cylindrical clamping column provided on the mounting seat, and a clamping claw provided on the first protective cover or the second protective cover; the end of the clamping claw has two spaced-apart claws, and grooves for accommodating the clamping column are formed on opposite sides of the two claws.

[0018] Furthermore, a limiting piece is formed at the end of the clamping column, and the limiting piece can constrain the clamping claw in the length direction of the clamping column.

[0019] Furthermore, one side of the clamping column extends outward to form a guide bar. When the clamping claw is clamped on the clamping column, the guide bar can be inserted into the slot between the two branch claws.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The high-voltage connector protection structure described in the present invention, through the provision of the first protective cover and the second protective cover, enables the two protective covers to be buckled at the connection between the copper busbar and the power connection busbar, thereby forming protection at the connection between the copper busbar and the power connection busbar, preventing personnel from directly contacting the exposed copper busbar and the connection busbar during the production and maintenance of the battery pack and causing electric shock, thereby protecting personnel safety.

[0022] In addition, deformation notches are formed on the side walls of the connector interface, creating a certain amount of deformation space at the connector interface. This facilitates the installation of the connector interface on the portion of the high-voltage connector housing, facilitating an interference fit between the mounting base and the high-voltage connector. Multiple snap-fit ​​ribs are formed on the inner wall of the connector interface, and multiple guide grooves are formed on the high-voltage connector to prevent misalignment during installation of the connector interface. This also limits excessive deformation of the side walls of the connector interface.

[0023] In addition, the first and second protective covers feature multiple windows in different orientations, allowing the copper busbar to connect to the power busbar in different directions, increasing the flexibility of the copper busbar connection. Each window is equipped with a removable shield, which can be removed from the corresponding window to facilitate copper busbar installation. A clamping portion is provided between the first and second protective covers and the mounting base to facilitate the assembly and disassembly of each protective cover. The clamping portion includes a cylindrical clamping post on the mounting base and a claw on the first or second protective cover.

[0024] Furthermore, the two claws of the claw are separated by a clamping post, which snaps into two grooves, thereby securing the protective cover to the mounting base. A limiter is formed at the end of the clamping post to prevent the claw from moving along the length of the clamping post and thus detaching from the clamping post. A guide bar extends outward from one side of the clamping post. When the claw is engaged with the clamping post, the guide bar can be inserted into the slot between the two claws, thereby limiting the rotation of the protective cover.

[0025] Another object of the present invention is to provide a battery pack, in which the high-voltage connector protection structure as described above is provided.

[0026] The battery pack and / or high-voltage connector protection structure described in the present invention have the same technical effects as those of the prior art and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the high-voltage connector protection structure according to the first embodiment of the present utility model;

[0029] Figure 2 This is an exploded view of the high-voltage connector protection structure according to the first embodiment of the present invention;

[0030] Figure 3 This is a structural diagram of the mounting base according to the first embodiment of the present invention;

[0031] Description of reference numerals:

[0032] 1. Mounting seat; 101. Connector interface; 1011. Snap-fit ​​rib; 1012. Deformation notch; 102. First mounting hole; 103. Second mounting hole; 104. Limiting structure;

[0033] 2. First protective cover;

[0034] 3. Second protective cover;

[0035] 4. High-voltage connector; 401. Power strip; 402. Guide groove;

[0036] 5. Blocking piece; 501. Connecting piece;

[0037] 6. Clamping column; 601. Limiting piece; 602. Guide strip;

[0038] 7. Claw; 701. Claw; 702. Groove; 703. Slot. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0040] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0041] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," and "outer" appear to indicate orientation or positional relationships, these are based on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0042] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0044] Example 1

[0045] This embodiment relates to a high voltage connector 4 protection structure, the overall structure is as follows Figure 1 、 Figure 2 and Figure 3 As shown, it includes a mounting base 1, a first protective cover 2 and a second protective cover 3.

[0046] One end of the mounting base 1 is stepped, forming a first step surface and a second step surface, and the other end of the mounting base 1 is formed with a connector interface 101. The connector interface 101 can be mounted on the high-voltage connector 4, and the two power bars 401 on the high-voltage connector 4 can be inserted into the mounting base 1. The first step surface is provided with a first mounting hole 102 for exposing the connection end of one power bar 401, and the second step surface is provided with a second mounting hole 103 for exposing the connection end of the other power bar 401. The first protective cover 2 is snapped into the first mounting hole 102, and the second protective cover 3 is snapped into the second mounting hole 103.

[0047] As described above, by setting the first protective cover 2 and the second protective cover 3, the two protective covers can be buckled at the connection between the copper busbar and the power connection bar 401 to form protection at the connection between the copper busbar and the power connection bar 401, preventing personnel from directly contacting the exposed copper busbar and the connection bar during the production and maintenance of the battery pack and causing electric shock, thereby protecting personnel safety.

[0048] Based on the above overall introduction, continue to combine Figure 1 、 Figure 2 and Figure 3Specifically, the connector interface 101 on the mounting base 1 of this embodiment is sleeved on the shell of the high-voltage connector 4 facing the inner side of the battery pack. One end of the mounting base 1 is stepped to match the structure of the staggered arrangement of the two power bars 401. In order to ensure the reliability of the connection between the mounting base 1 and the high-voltage connector 4, the connector interface 101 of this embodiment is interference fit with the high-voltage connector 4, and a deformation notch 1012 is formed on the side wall of the connector interface 101, which is formed by the high-voltage connector 4 being recessed toward the mounting base 1. Through the interference fit between the connector interface 101 and the high-voltage connector 4, it has good connection strength, ensuring that the mounting base 1 can be stably fixed on the high-voltage connector 4. At the same time, the setting of the deformation notch 1012 allows a certain deformation space to exist at the connector interface 101, so that the connector interface 101 can be expanded due to manual operation, so that the connector interface 101 can be sleeved on the partial shell of the high-voltage connector 4, thereby facilitating the assembly between the mounting base 1 and the high-voltage connector 4. In a specific implementation, the deformation notch 1012 is only provided on one side of the connector interface 101 to prevent the deformation notch 1012 itself from affecting the structural strength of the connector interface 101 and to avoid degradation of the connection effect between the mounting base 1 and the high-voltage connector 4 .

[0049] In addition, it is understandable that after the connector interface 101 is mounted on the high-voltage connector 4, due to the influence of the deformation notch 1012 and the interference fit itself, the connector interface 101 is easily over-expanded by the high-voltage connector 4, and during the installation process, it is easy to cause a certain degree of twisting and dislocation, and it is also easy to cause deformation at the connector interface 101, thereby causing a decrease in the structural strength of the connector interface 101. To this end, a plurality of snap-fit ​​ribs 1011 are formed on the inner wall of the connector interface 101 of this embodiment, and a plurality of guide grooves 402 corresponding to each snap-fit ​​rib 1011 are formed on the high-voltage connector 4. When installing the mounting base 1, each snap-fit ​​rib 1011 can slide along the installation direction and snap into the corresponding guide groove 402 to avoid installation dislocation of the connector interface 101. At the same time, the guide groove 402 can constrain the snapping rib 1011 in the width direction of the snapping rib 1011. By constraining the snapping rib 1011, the excessive deformation of the side wall of the connector interface 101 is limited, and the connector interface 101 is prevented from being excessively expanded due to interference fit, thereby improving the structural strength of the connector interface 101.

[0050] In this embodiment, as a preferred implementation form, windows for the copper busbar to pass through are provided on the left and right side surfaces of the first protective cover 2 and the second protective cover 3, as well as on the side surface away from the high-voltage connector 4. By providing multiple windows in different directions, the copper busbar can be connected to the power bar 401 in different directions, improving the flexibility of the copper busbar connection and facilitating the installation of the high-voltage connector 4. At the same time, by providing multiple windows, after the copper busbar is connected, the first protective cover 2 and the second protective cover 3 can limit the rotation of the copper busbar through the windows, thereby reducing the installation deviation caused by the rotation of the copper busbar and the high-voltage connector 4 during installation, further improving the connection effect of the copper busbar.

[0051] In practice, this embodiment further includes retaining structures 104 at the first and second mounting holes 102, 103. These retaining structures 104 are located at the corners of the first and second mounting holes 102, 103, away from the high-voltage connector 4. Retaining structures 104 are plate-shaped or L-shaped. The provision of retaining structures 104 further limits the rotation of the copper busbar, ensuring a secure connection between the copper busbar and the power strip 401. When the first and second protective covers 2, 3 are installed on the mounting base 1, each retaining structure 104 is secured within the first and second protective covers 2, 3, respectively.

[0052] In addition, each window in this embodiment is provided with a baffle 5, which is detachably connected to the window via a connecting piece 501. Specifically, there is a certain gap between the baffle 5 and the edge of the window, and the connecting piece 501 is relatively small in width and thickness. The baffle 5 can be grasped and broken off to remove the corresponding window, facilitating installation of the copper busbar. Furthermore, the remaining baffles 5 on other windows can serve as a protective shield, preventing the copper busbar from being exposed through the window, further improving safety.

[0053] As a specific implementation form, a snap-fit ​​portion is provided between the first protective cover 2, the second protective cover 3, and the mounting base 1. The snap-fit ​​portion can detachably fix the first protective cover 2 and the second protective cover 3 to the mounting base 1, facilitating the disassembly and assembly of each protective cover, thereby facilitating subsequent maintenance and replacement of the high-voltage connector 4 and the copper busbar.

[0054] Specifically, the clamping portion includes a cylindrical clamping post 6 provided on the mounting base 1, and a claw 7 provided on the first protective cover 2 or the second protective cover 3. The end of the claw 7 has two spaced-apart claws 701, and grooves 702 are formed on opposite sides of the two claws 701 for accommodating the clamping post 6. When the first protective cover 2 or the second protective cover 3 is installed in the first mounting hole 102 or the second mounting hole 103 in the predetermined installation direction, the ends of the two claws 701 are separated by the clamping post 6, and the clamping post 6 is engaged in the two grooves 702, thereby achieving a clamping fixation between the protective cover and the mounting base 1. The structure is simple and has a good fixing effect.

[0055] In order to prevent the claw 7 from slipping off a section of the clamping column 6, a limiting plate 601 is formed at the end of the clamping column 6 of this embodiment. The limiting plate 601 can constrain the claw 7 in the length direction of the clamping column 6, preventing the claw 7 from moving along the length direction of the clamping column 6 and thus detaching from the clamping column 6, causing the protective cover to detach, thereby further improving the fixing effect of the protective cover.

[0056] Furthermore, the cylindrical shape of the clamping post 6 makes it easy for each protective cover to rotate around the clamping post 6, causing the protective cover to collide with the mounting base 1 and produce unusual noises. Alternatively, when the protective cover rotates around the clamping post 6 due to vibration, the claws 7 and the clamping post 6 frequently rub against each other, which can easily cause the clamping portion to fail and reduce the securing effect of the protective cover. To this end, one side of the clamping post 6 in this embodiment extends outward to form a guide bar 602. When the claw 7 is clamped to the clamping post 6, the guide bar 602 can be inserted into the slot 703 between the two claws 701. By inserting the guide bar 602 between the slots 703, the rotation of the claw 7 and the protective cover is restricted, which helps to improve the connection stability between the protective cover and the mounting base 1. In this embodiment, the first protective cover is mounted in the first mounting hole 102 along the height direction, and its corresponding guide bar 602 extends in the height direction. The second protective cover is mounted in the second mounting hole 103 along the lateral direction, and its corresponding guide bar 602 extends in the lateral direction.

[0057] In summary, the protective structure of the high-voltage connector 4 of this embodiment, through the arrangement of the first protective cover 2 and the second protective cover 3, enables the two protective covers to be buckled at the connection between the copper busbar and the power connection busbar 401, so as to form protection at the connection between the copper busbar and the power connection busbar 401, preventing personnel from directly contacting the exposed copper busbar and the connection busbar during the production and maintenance of the battery pack and causing electric shock, thereby protecting personnel safety and having good practicality.

[0058] Example 2

[0059] This embodiment relates to a battery pack. In terms of overall structure, the battery pack is provided with a high-voltage connector 4 protection structure as described in the first embodiment.

[0060] The battery pack of this embodiment, through the provision of the above-mentioned high-voltage connector 4 protective structure, can protect the connection between the power bar 401 of the high-voltage connector 4 and the copper busbar, thereby preventing the connection from being directly exposed in the battery pack and preventing people from getting electric shock due to contact with the connection between the power bar 401 and the copper busbar, thereby achieving the effect of protecting personnel safety and improving the production safety of the battery pack.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-voltage connector protection structure, characterized by: It includes a mounting base, a first protective cover and a second protective cover; One end of the mounting seat is stepped and formed with a first step surface and a second step surface, and the other end of the mounting seat is formed with a connector interface; The connector interface can be mounted on the high-voltage connector, and the two power bars on the high-voltage connector can be inserted into the mounting seat; A first mounting hole for exposing a connection end of the power bar is provided on the first stepped surface, and a second mounting hole for exposing a connection end of the other power bar is provided on the second stepped surface; The first protective cover is buckled on the first mounting hole, and the second protective cover is buckled on the second mounting hole.

2. The high-voltage connector protection structure according to claim 1, characterized in that: The connector interface and the high-voltage connector are interference-fitted, and a deformation notch is formed on the side wall of the connector interface, which is formed by the high-voltage connector being recessed toward the mounting seat.

3. The high-voltage connector protection structure according to claim 2, characterized in that: A plurality of clamping ribs are formed on the inner wall of the connector interface, and a plurality of guide grooves corresponding to the clamping ribs are formed on the high-voltage connector.

4. The high-voltage connector protection structure according to claim 1, characterized in that: Windows for copper bars to pass through are provided on the left and right side surfaces of the first protective cover and the second protective cover, as well as on a side away from the high-voltage connector.

5. The high-voltage connector protection structure according to claim 4, characterized in that: Each window is provided with a blocking piece, and the blocking piece is detachably connected to the window through a connecting piece.

6. The high-voltage connector protection structure according to any one of claims 1 to 5, characterized in that: A clamping portion is provided between the first protective cover, the second protective cover and the mounting seat; The clamping portion can detachably fix the first protective cover and the second protective cover on the mounting base.

7. The high-voltage connector protection structure according to claim 6, characterized in that: The clamping portion includes a cylindrical clamping column provided on the mounting seat, and a clamping claw provided on the first protective cover or the second protective cover; The end of the clamping claw is provided with two spaced apart claws, and grooves for accommodating the clamping column are formed on opposite sides of the two claws.

8. The high-voltage connector protection structure according to claim 7, characterized in that: A limiting piece is formed at the end of the clamping column, and the limiting piece can constrain the clamping claw in the length direction of the clamping column.

9. The high-voltage connector protection structure according to claim 7, characterized in that: One side of the clamping column extends outward to form a guide bar. When the clamping claw is clamped on the clamping column, the guide bar can be inserted into the slot between the two branch claws.

10. A battery pack, characterized in that: The battery pack is provided with the high-voltage connector protection structure according to any one of claims 1 to 9.

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