A high voltage connector and battery pack

Abstract

The utility model belongs to power battery technical field discloses a kind of high-voltage connector and battery pack. High-voltage connector includes connector main body, busbar connecting structure and protective cover, connector main body is provided with inner chamber and two windows being communicated with inner chamber;Busbar connecting structure is located in inner chamber, each window is correspondingly provided with busbar connecting structure;Each window is correspondingly provided with protective cover, protective cover can rotate relative to connector main body, to switch between the first position of opening corresponding window and the second position of closing corresponding window, two protective covers are configured to rotate to first position in opposite directions, and one of protective cover is located in first position and presses the other protective cover in second position. When maintaining high-voltage connector, only single protective cover can be opened for operation, to prevent the user's finger from touching two busbar components by mistake during maintenance, to avoid the possibility of simultaneous lapping short-circuit risk.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, and in particular to a high-voltage connector and battery pack. Background Technology

[0002] The battery pack is the power source for electric vehicles. With the continuous development of new energy technologies, the storage capacity of battery packs is increasing, and the number of high-voltage lines inside the power battery is also increasing. As a high-voltage electrical component of the battery pack, the high-voltage connector is responsible for the power transmission between the battery pack and the vehicle, and is also an important component to ensure electrical safety performance.

[0003] High-voltage connectors have two busbar contacts. One end of the busbar contact interfaces with the vehicle end, while the other end is typically connected to the positive and negative busbars integrated within the battery pack via screws. Industry practice generally involves adding a dedicated protective bracket for protection. After connecting the positive and negative busbars, the protective bracket is fixed to the high-voltage connector, shielding the connection points. However, during maintenance, disassembling or moving the protective bracket exposes the connection points of both the positive and negative busbars, posing a risk of short circuit due to simultaneous contact with both contacts and potential injury. Utility Model Content

[0004] The purpose of this utility model is to provide a high-voltage connector and battery pack that can solve the problem that the connection positions of the high-voltage connector and the positive and negative busbars are exposed and pose a short-circuit risk during maintenance.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A high-voltage connector, comprising:

[0007] A connector body, wherein the connector body is provided with an inner cavity and two windows communicating with the inner cavity;

[0008] A busbar connection structure is located inside the inner cavity, and each window is provided with a corresponding busbar connection structure;

[0009] Each of the windows is provided with a protective cover, which is rotatable relative to the connector body to switch between a first position with the corresponding window open and a second position with the corresponding window closed. The two protective covers are configured to rotate in opposite directions to the first position, and when one of the protective covers is in the first position, it presses against the other protective cover in the second position.

[0010] As an alternative to the aforementioned high-voltage connector, the high-voltage connector further includes a rotating shaft located between the two windows, and both protective covers are rotatably connected to the rotating shaft.

[0011] As an alternative to the aforementioned high-voltage connector, the protective cover includes:

[0012] A cover plate, the cover plate being used to cover the window;

[0013] A rotating part, which is connected to the cover plate, is rotatably sleeved on the rotating shaft;

[0014] A clearance space is formed between the cover plate and the pivot to avoid the rotating part of another protective cover.

[0015] As an alternative to the aforementioned high-voltage connector, at least one of the protective covers has a rotating portion that is eccentric relative to the rotating shaft, and the eccentric structure is used to abut against another protective cover.

[0016] As an alternative to the aforementioned high-voltage connector, the eccentric structure is provided with an abutment surface, which can abut against the outer wall of the cover plate of another protective cover;

[0017] The protective cover, which is disposed in the eccentric structure, has an acute angle between the contact surface and the cover plate, so that the rotation angle of the protective cover when it rotates from the second position to the first position is greater than 90°.

[0018] As an alternative to the above-mentioned high-voltage connector, the rotating part is provided with a slot, the rotating shaft is located in the slot and rotates with the slot;

[0019] And / or, two of the windows are arranged side by side, each of the protective covers includes at least two of the rotating parts, and the rotating parts on the two protective covers are alternately arranged along the axial direction of the rotating shaft.

[0020] As an alternative to the aforementioned high-voltage connector, a partition is provided inside the cavity, and the opposite side walls of the partition and the inner wall of the cavity respectively enclose two sub-cavities, each of which is provided with the busbar connection structure.

[0021] As an alternative to the aforementioned high-voltage connector, the connector body has a blocking portion formed between the two windows, and the rotating portion of the protective cover is located above the blocking portion.

[0022] As an alternative to the aforementioned high-voltage connector, when the protective cover is in the second position, at least one edge of the protective cover is located outside the window;

[0023] And / or, when the protective cover is in the second position, it engages with the connector body.

[0024] A battery pack includes a housing, a battery module disposed within the housing, a busbar assembly, and the aforementioned high-voltage connector, wherein the busbar assembly connects the battery module and the busbar connection structure.

[0025] The beneficial effects of this utility model are:

[0026] In the high-voltage connector provided by this utility model, when any one of the protective covers is rotated to the open position, it can press the other protective cover into the second position, so that the two protective covers cannot open their corresponding windows at the same time. When repairing the high-voltage connector, only one protective cover can be opened for operation, preventing the user from accidentally touching the two busbar components with their fingers during the repair process and avoiding the possibility of simultaneous short circuit.

[0027] The battery pack provided by this utility model includes the aforementioned high-voltage connector, which helps to improve maintenance safety and reduce the risk of short circuits. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the high-voltage connector provided by this utility model when the two protective covers are rotated to between the first and second positions;

[0029] Figure 2 This is a schematic diagram of the structure when both protective covers provided by this utility model are in the second position;

[0030] Figure 3 This is a schematic diagram of the first structure of the two protective covers provided by this utility model when the first protective cover is in the first position;

[0031] Figure 4 This is a schematic diagram of the second structure of the two protective covers provided by this utility model when the first protective cover is in the first position;

[0032] Figure 5 This is a schematic diagram of the first structure of the two protective covers provided by this utility model when the second protective cover is in the first position;

[0033] Figure 6 This is a schematic diagram of the second structure of the two protective covers provided by this utility model when the second protective cover is in the first position;

[0034] Figure 7 This is a schematic diagram of the structure of the high-voltage connector provided by this utility model when the second protective cover is in the first position;

[0035] Figure 8 This is a schematic diagram of the first structure of the first protective cover and the rotating shaft provided by this utility model;

[0036] Figure 9 This is a schematic diagram of the high-voltage connector provided by this utility model without the protective cover.

[0037] Figure 10 This is a schematic diagram of the structure of the second protective cover and the rotating shaft provided by this utility model;

[0038] Figure 11 This is a schematic diagram of the second structure of the first protective cover and the rotating shaft provided by this utility model.

[0039] In the picture:

[0040] 1. Connector body; 111. First height surface; 1111. Window; 1112. Blocking part; 112. Second height surface; 113. Snap-hole; 114. Busbar protrusion; 12. Separator; 2. Busbar connection structure; 3. Protective cover; 3a. First protective cover; 3b. Second protective cover; 31. Cover plate; 311. First horizontal plate; 312. Vertical plate; 313. Second horizontal plate; 32. Rotating part; 321. Abutting surface; 322. Notch; 33. Snap-lock; 4. Rotating shaft; 41. Shaft body; 42. Limiting end; 421. Rotation limiting plane; 100. Busbar. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0042] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] This embodiment provides a high-voltage connector that can be used in a battery pack to electrically connect the battery modules inside the battery pack to the vehicle, so as to realize power transmission and supply.

[0046] like Figure 1 As shown, the high-voltage connector includes a connector body 1 and a busbar connection structure 2. The connector body 1 is provided with an inner cavity and a window 1111 communicating with the inner cavity; two busbar connection structures 2 are provided in the inner cavity, which are used to connect a busbar 100, and the busbar 100 can be connected to the busbar connection structure 2 through the window 1111.

[0047] The busbar 100 includes a positive busbar and a negative busbar. The inner cavity is provided with a busbar connection structure 2 corresponding to the positive busbar and the negative busbar. Each busbar connection structure 2 is provided with a window 1111 and a busbar extension 114, so that the positive busbar and the negative busbar can be connected to the busbar connection structure 2 through the corresponding window 1111 for easy operation. After one end of the busbar 100 is connected to the corresponding busbar connection structure 2, the other end extends out of the connector body 1 through the corresponding busbar extension 114 to limit the extension direction of the positive busbar and the negative busbar and prevent the positive busbar and the negative busbar from contacting each other.

[0048] To protect the connection position of the busbar 100, in this embodiment, the high-voltage connector also includes a protective cover 3. Each window 1111 is correspondingly provided with a protective cover 3. The protective cover 3 can rotate relative to the connector body 1 to switch between a first position with the corresponding window 1111 open and a second position with the corresponding window 1111 closed. The high-voltage connector is provided with a protective cover 3, which can be moved to the first position with the window 1111 open when installing or removing the busbar 100 for convenient operation; and can be moved to the second position with the window 1111 closed when the high-voltage connector is in normal use, so as to prevent the connection position between the busbar 100 and the busbar connection structure 2 from being exposed, thereby achieving IPXXB protection and avoiding the risk of short circuit.

[0049] To reduce the risk of short circuits during maintenance, the two protective covers 3 are configured to rotate in opposite directions to a first position, with one protective cover 3 pressing against the other protective cover 3 in a second position when in the first position. This arrangement prevents both protective covers 3 from opening simultaneously, ensuring that only one protective cover 3 can be opened for operation during maintenance. This prevents users from accidentally touching both busbars 100 during maintenance, thus avoiding the possibility of simultaneous short circuits.

[0050] Furthermore, by having the two protective covers 3 cooperate with each other to prevent the corresponding windows 1111 from opening simultaneously, no additional structural components are needed. The structure is simple and compact, which helps to reduce the size of the high-voltage connector and thus helps to control the size of the battery pack.

[0051] In some embodiments, such as Figure 1 and Figure 2 As shown, the high-voltage connector also includes a rotating shaft 4, which is located between the two windows 1111. Both protective covers 3 are rotatably connected to the rotating shaft 4. The connection of the two protective covers 3 to the same rotating shaft 4 can reduce the number of parts and lower costs. On the other hand, it can reduce the distance between the two windows 1111, making the high-voltage connector structure more compact and reducing the size of the high-voltage connector in the arrangement direction of the two windows 1111.

[0052] Specifically, two windows 1111 are arranged along the first direction X and spaced apart. A rotating shaft 4 extends along the second direction Y and is located between the two windows 1111. The rotating shaft 4 is connected to the connector body 1, and the protective cover 3 is rotatably connected to the rotating shaft 4 so that it can rotate around the rotating shaft 4 to open and close the windows 1111. The first direction X is perpendicular to the second direction Y.

[0053] For ease of explanation, the two protective covers 3 are the first protective cover 3a and the second protective cover 3b, respectively. When both the first protective cover 3a and the second protective cover 3b are in the second position, the first protective cover 3a and the second protective cover 3b are approximately coplanar, so as to block the corresponding window 1111.

[0054] In some embodiments, such as Figure 3 As shown, both the first protective cover 3a and the second protective cover 3b include a cover plate 31 and a rotating part 32. The cover plate 31 is a plate-shaped structure used to cover the window 1111. The rotating part 32 is connected to the cover plate 31 and is rotatably sleeved on the rotating shaft 4 so that the cover plate 31 can rotate around the rotating shaft 4, thereby switching between the state of opening the window 1111 and the state of covering the window 1111.

[0055] It is understandable that, in order to avoid interference between the rotating parts 32 on the two protective covers 3, the dimension of the rotating part 32 along the axis of the rotating shaft 4 is smaller than the length of the rotating shaft 4, and the rotating parts 32 of the two protective covers 3 are staggered so as to cooperate with different positions of the rotating shaft 4 respectively to avoid mutual interference.

[0056] In some embodiments, each cover plate 31 is provided with at least two rotating parts 32 to increase the contact area between the protective cover 3 and the rotating shaft 4 and improve the stability of the cooperation between the protective cover 3 and the rotating shaft 4.

[0057] For example, each cover plate 31 is connected to two rotating parts 32. The rotating parts 32 of the two cover plates 31 are alternately arranged along the axial direction of the rotating shaft 4 so that the cover plate 31 is subjected to uniform force when rotating and the rotation is more stable.

[0058] In other embodiments, the number of rotating parts 32 and the arrangement of the rotating parts 32 connected by the two cover plates 31 can be adjusted according to actual needs.

[0059] In some embodiments, the rotating part 32 is provided with a slot, and the rotating shaft 4 is rotatably engaged with the slot. When assembling the protective cover 3, the opening of the rotating slot is oriented towards the rotating shaft 4, and the protective cover 3 is pressed to complete the assembly, which is convenient.

[0060] Optionally, the central angle of the slot is greater than 180° to ensure the stability of the fit between the rotating shaft 4 and the slot and to prevent the rotating part 32 from disengaging from the rotating shaft 4.

[0061] In order to avoid interference between the rotating part 32 and the cover plate 31 of another protective cover 3, in some embodiments, a clearance space is formed between the cover plate 31 and the rotating shaft 4 to allow the rotating part 32 of the other protective cover 3 to move within the clearance space when rotating around the rotating shaft 4.

[0062] In some embodiments, such as Figure 3 As shown, the rotating part 32 of the first protective cover 3a is an eccentric structure relative to the rotating shaft 4. That is, the rotating part 32 of the first protective cover 3a includes a rotating body and an abutting part protruding from the outer peripheral surface of the rotating body. The rotating body is rotatably connected to the rotating shaft 4 and can rotate freely within the clearance space. The abutting part protruding from the outer peripheral surface of the rotating body can interfere with the other protective cover 3 to prevent the other protective cover 3 from rotating. When the first protective cover 3a is in the first position, as... Figure 3 and Figure 4 As shown, the rotating part 32 on the first protective cover 3a can abut against the second protective cover 3b, so that the second protective cover 3b is maintained in the second position.

[0063] It is understandable that when the first protective cover 3a rotates to the first position, it rotates towards the second protective cover 3b, causing the abutting part to gradually approach the second protective cover 3b until it abuts against the second protective cover 3b, thereby pressing the second protective cover 3b against the connector body 1, so that the second protective cover 3b stays in the second position and prevents the second protective cover 3b from rotating to the first position.

[0064] Furthermore, when the first protective cover 3a rotates to the first position until the abutting part abuts against the second protective cover 3b, the rotation angle of the first protective cover 3a can also be limited.

[0065] Optionally, the abutting part can be integrally formed with the rotating body of the first protective cover 3a, which helps to reduce the number of parts, improve the connection strength, and reduce costs.

[0066] like Figure 5 and Figure 6 As shown, when the first protective cover 3a is in the second position and the second protective cover 3b rotates to the first position, the position of the abutting part on the first protective cover 3a remains unchanged. As the second protective cover 3b rotates to the first position, the top surface of the cover plate 31 of the second protective cover 3b will abut against the abutting part to restrict the second protective cover 3b from continuing to rotate, while preventing the first protective cover 3a from rotating to the first position.

[0067] In some embodiments, such as Figure 7 and Figure 8 As shown, the abutment part is provided with an abutment surface 321, which can abut against the outer wall of the cover plate 31 of the second protective cover 3b; in the first protective cover 3a, the included angle α between the abutment surface 321 and the cover plate 31 is an acute angle, so that the rotation angle of both protective covers 3 when they are rotated from the second position to the first position is greater than 90°. This arrangement allows the protective cover 3 to provide sufficient space for maintenance and facilitates operation when the corresponding window 1111 is opened.

[0068] For example, the included angle α between the contact surface 321 and the cover plate 31 can be 20°-90°, preferably 30°-75°. Within this range, the stability of the protective cover 3 when it is in the first position can be guaranteed, which facilitates operation.

[0069] In other embodiments, the abutting part is connected to the rotating part 32 of the second protective cover 3b, or the rotating parts 32 of both the first protective cover 3a and the second protective cover 3b are connected to the abutting part, which can prevent the two protective covers 3 from opening the corresponding windows 1111 at the same time.

[0070] In some embodiments, such as Figure 9As shown, a partition 12 is provided inside the cavity. The opposite side walls of the partition 12 form two sub-cavities with the inner wall of the cavity, and each sub-cavity is provided with a busbar connection structure 2. By providing the partition 12, the two busbar connection structures 2 in the cavity can be separated, so that the positive busbar and the negative busbar are located in two independent sub-cavities, which can prevent the positive busbar and the negative busbar from contacting each other and improve the protection level of the high-voltage connector.

[0071] In some embodiments, the connector body 1 has a blocking portion 1112 formed between the two windows 1111, and the rotating portion 32 of the protective cover 3 is located above the blocking portion 1112. It is understood that the rotating portions 32 of the two protective covers 3 are staggered and respectively cooperate with the rotating shaft 4, so that there is a gap between the two adjacent rotating portions 32 and the cover plate 31 of each protective cover 3 and the rotating shaft 4.

[0072] Without the blocking part 1112, when both protective covers 3 are in the second position, the connection point between the busbar 100 and the busbar connection structure 2 will be exposed through the gap between the two cover plates 31 and the gap between adjacent rotating parts 32. This is not only detrimental to dust prevention but also affects the protection level of the high-voltage connector. Therefore, by forming the blocking part 1112 between the two windows 1111 and providing the rotating part 32 and the rotating shaft 4 above the blocking part 1112, the dust prevention and IPXXB protection effects can be improved.

[0073] In some embodiments, the blocking part 1112 is a blocking plate, which is connected to the top of the partition 12. The blocking plate extends from the partition 12 into the two windows 1111 on both sides, respectively, and is located below the rotating part 32 of the protective cover 3 on both sides.

[0074] In some embodiments, the side surface of the connector body 1 with the window 1111 includes a first height surface 111 and a second height surface 112. The first height surface 111 is lower than the second height surface 112. The window 1111 is disposed on the first height surface 111, and one end of the rotating shaft 4 is connected to the second height surface 112. This arrangement can increase the distance between the rotating shaft 4 and the first height surface 111, thereby providing accommodating space for the rotating part 32.

[0075] In some embodiments, one edge of window 1111 extends to the junction of the first height surface 111 and the second height surface 112; the top surface of the baffle is flush with the first height surface 111.

[0076] In some embodiments, the rotating shaft 4 includes a shaft body 41 and limiting ends 42 located at both ends of the shaft body 41. The connector body 1 is provided with two fixing seats. The two ends of the shaft body 41 pass through through holes in the fixing seats, and the limiting ends 42 are located at the end of the fixing seats opposite to the shaft body 41.

[0077] In some embodiments, when the protective cover 3 is in the second position, at least one edge of the protective cover 3 extends to the outside of the window 1111, thereby stacking the protective cover 3 with the connector body 1 to cover the edge of the window 1111, thereby better covering the window 1111 and preventing dust from entering the inner cavity.

[0078] In some embodiments, one edge of the protective cover 3 overlaps with the second height surface 112, which can partially block the second height surface 112 and prevent dust and other impurities on the second height surface 112 from entering the inner cavity through the edge of the window 1111.

[0079] In some embodiments, such as Figure 10 As shown, the cover 31 includes a first horizontal plate 311, a vertical plate 312, and a second horizontal plate 313 connected in sequence. The first horizontal plate 311 and the second horizontal plate 313 are arranged in parallel and are both perpendicular to the vertical plate 312. The two ends of the vertical plate 312 are connected to the first horizontal plate 311 and the second horizontal plate 313, so that the first horizontal plate 311 and the second horizontal plate 313 have a certain height difference. When the protective cover 3 is in the second position, the first horizontal plate 311 in the protective cover 3 blocks the window 1111, and the second horizontal plate 313 is stacked on the second height surface 112 to block the boundary between the second height surface 112 and the window 1111, thereby preventing dust from entering the inner cavity through the boundary between the second height surface 112 and the window 1111.

[0080] In addition, the stepped structure formed between the first horizontal plate 311 and the second horizontal plate 313 can also prevent dust on the cover plate 31 from moving towards the second horizontal plate 313, thereby preventing dust from moving towards the boundary between the second height surface 112 and the window 1111.

[0081] In some embodiments, such as Figure 11 As shown, the rotating part 32 is provided with a notch 322 to avoid the step structure, so as to avoid structural interference.

[0082] For example, the rotating part 32 of the first protective cover 3a near the second horizontal plate 313 is provided with two notches 322, and the two notches 322 correspond to the stepped structures on the first protective cover 3a and the second protective cover 3b respectively.

[0083] To improve the stability of the protective cover 3 in the second position, in some embodiments, the protective cover 3 is snapped into the connector body 1 when it is in the second position, so that the protective cover 3 can be stably maintained in the second position.

[0084] Combination Figure 1 and Figure 8As shown, the connector body 1 and the side wall of the inner cavity are provided with locking holes 113, and the bottom surface of the cover plate 31 of the protective cover 3 is provided with a buckle 33. When the protective cover 3 is in the second position, the buckle 33 extends into the inner cavity and cooperates with the locking holes 113 to fix the protective cover 3 to the connector body 1. The buckle 33 is located inside the inner cavity and does not occupy the external space of the connector body 1, which helps to reduce the size of the protective cover 3 and avoid interference with external structures.

[0085] This embodiment also provides a battery pack, including a housing, a battery module disposed in the housing, a busbar and the aforementioned high-voltage connector, wherein the busbar connects the battery module and the busbar connection structure 2.

[0086] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A high-voltage connector, characterized in that, include: The connector body (1) is provided with an inner cavity and two windows (1111) communicating with the inner cavity; The busbar connection structure (2) is located inside the cavity, and each window (1111) is provided with the busbar connection structure (2); A protective cover (3) is provided for each of the windows (1111). The protective cover (3) is rotatable relative to the connector body (1) to switch between a first position with the corresponding window (1111) open and a second position with the corresponding window (1111) closed. The two protective covers (3) are configured to rotate in opposite directions to the first position, and when one of the protective covers (3) is in the first position, it presses against the other protective cover (3) in the second position.

2. The high-voltage connector according to claim 1, characterized in that, The high-voltage connector also includes a rotating shaft (4), which is located between the two windows (1111), and both protective covers (3) are rotatably connected to the rotating shaft (4).

3. The high-voltage connector according to claim 2, characterized in that, The protective cover (3) includes: A cover plate (31) is used to cover the window (1111); Rotating part (32), the rotating part (32) is connected to the cover plate (31), and the rotating part (32) is rotatably sleeved on the rotating shaft (4); A clearance space is formed between the cover plate (31) and the pivot (4) to avoid the rotating part (32) of another protective cover (3).

4. The high-voltage connector according to claim 3, characterized in that, At least one of the protective covers (3) has a rotating part (32) that is eccentric relative to the rotating shaft (4), and the eccentric structure is used to abut against another of the protective covers (3).

5. The high-voltage connector according to claim 4, characterized in that, The eccentric structure is provided with an abutment surface (321), which can abut against the outer wall of the cover plate (31) of another protective cover (3); The protective cover (3) disposed in the eccentric structure has an acute angle between the contact surface (321) and the cover plate (31) so that the rotation angle of the protective cover (3) when it rotates from the second position to the first position is greater than 90°.

6. The high-voltage connector according to claim 3, characterized in that, The rotating part (32) is provided with a slot, and the rotating shaft (4) is located in the slot and rotates in cooperation with the slot; And / or, the two windows (1111) are arranged side by side, each of the protective covers (3) includes at least two of the rotating parts (32), and the rotating parts (32) on the two protective covers (3) are alternately arranged along the axis of the rotating shaft (4).

7. The high-voltage connector according to any one of claims 1-6, characterized in that, The inner cavity is provided with a partition (12), and the opposite side walls of the partition (12) are respectively enclosed with the inner wall of the inner cavity to form two sub-cavities (114), and each sub-cavity (114) is provided with the busbar connection structure (2).

8. The high-voltage connector according to any one of claims 1-6, characterized in that, The connector body (1) has a blocking portion (1112) formed between the two windows (1111), and the rotating portion (32) of the protective cover (3) is located above the blocking portion (1112).

9. The high-voltage connector according to any one of claims 1-6, characterized in that, When the protective cover (3) is in the second position, at least one edge of the protective cover (3) is located outside the window (1111); And / or, when the protective cover (3) is in the second position, it engages with the connector body (1).

10. A battery pack, characterized in that, It includes a housing, a battery module disposed within the housing, a busbar assembly, and a high-voltage connector as described in any one of claims 1-9, wherein the busbar assembly connects the battery module and the busbar connection structure.

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