High-voltage connector assembly structure and battery pack

By introducing a conformal groove structure with an anti-deformation protective sleeve into the high-voltage connector, the deformation problem of the copper busbar during the threaded connection process is solved, achieving stable connection and improved safety of the copper busbar.

CN121840243APending Publication Date: 2026-04-10JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
Filing Date
2026-02-10
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The copper busbars in high-voltage connectors are prone to deformation during threaded connection with other conductive components, which can lead to a decrease in strength and potentially cause high-voltage connection risks.

Method used

A high-voltage connector assembly structure was designed, including a high-voltage connector sheath and an anti-deformation protective sleeve. The anti-deformation protective sleeve is provided with first and second conformal slots. The tail end of the copper busbar is inserted into the corresponding slot to support the copper busbar and withstand the bolt tightening torque, thereby reducing the possibility of deformation.

Benefits of technology

It effectively reduces the possibility of deformation of the copper busbar during the threaded connection process, improves the strength and safety of the connector, and prevents irreversible deformation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of battery structures, and discloses a high-voltage connector assembly structure and a battery pack, the high-voltage connector assembly structure comprises a high-voltage connector sheath, and a first copper bar and a second copper bar which are separated from each other extend out of the high-voltage connector sheath; the tail ends, far away from the high-voltage connector sheath, of the first copper bar and the second copper bar are provided with threaded connection holes. The anti-deformation protective sleeve is clamped with the high-voltage connector sheath and is provided with a first profiling clamping groove and a second profiling clamping groove; the tail end of the first copper bar is at least partially clamped into the first profiling clamping groove, and the tail end of the second copper bar is at least partially clamped into the second profiling clamping groove. According to the high-voltage connector assembly structure and the battery pack, the possibility of deformation of the copper bar in the threaded connection process with other conductive parts is reduced.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery structure, and particularly relates to a high-voltage connector assembly structure and a battery pack. BACKGROUND

[0002] The high-voltage connector is a high-voltage system connecting element on the power battery pack, and plays a role in transmitting high-voltage power.

[0003] The high-voltage connector usually extends two copper bars in the air, which are a positive copper bar and a negative copper bar, and a threaded connection hole is arranged on the distal end of the copper bar, and other conductive connecting pieces are connected with the copper bar through bolts. Due to the reason that the copper bar is arranged in the air, the copper bar is inevitably twisted in the rotation direction of the bolt during the tightening or loosening of the bolt, so that the copper bar is deformed. After the copper bar is deformed, the strength of the copper bar decreases, and the deformed copper bar may even cause a high-voltage connection risk.

[0004] Therefore, it is necessary to design a high-voltage connector assembly structure and a battery pack to reduce the possibility of deformation of the copper bar during the threaded connection with other conductive pieces.

[0005] The above information is given as background information only to assist with an understanding of the present disclosure, and does not constitute admission or recognition that any of the above information constitutes prior art with respect to the present disclosure. SUMMARY

[0006] The present application provides a high-voltage connector assembly structure and a battery pack to reduce the possibility of deformation of the copper bar during the threaded connection with other conductive pieces.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A high-voltage connector assembly structure, comprising: A high-voltage connector sheath, a first copper bar and a second copper bar are extended in the high-voltage connector sheath and separated from each other, and a threaded connection hole is arranged on the tail end of the first copper bar and the second copper bar away from the high-voltage connector sheath; A deformation prevention protective sleeve is connected with the high-voltage connector sheath and has a first profiled clamping groove and a second profiled clamping groove; The tail end of the first copper bar is at least partially clamped into the first profiled clamping groove, and the tail end of the second copper bar is at least partially clamped into the second profiled clamping groove.

[0008] Optionally, the deformation prevention protective sleeve is provided with a first clamping portion, a second clamping portion and a third clamping portion; The high-voltage connector sheath forms a first connecting portion for connecting and clamping with the first clamping portion, a second connecting portion for connecting and clamping with the second clamping portion, and a third connecting portion for connecting and clamping with the third clamping portion; The first clamping part is different in shape from the second clamping part and is arranged at the tail of the anti-deformation protective sleeve away from the high-voltage connector sheath. The third clamping part is arranged on the side wall of the anti-deformation protective sleeve and is opposite to the first clamping part or the second clamping part.

[0009] Optionally, the first clamping part forms a first clamping groove, and the second clamping part forms a second clamping groove. The width of the first clamping groove is different from the width of the second clamping groove.

[0010] Optionally, an interlocking wire harness embedding groove is formed on the anti-deformation protective sleeve, and a buckle connecting groove is arranged on the groove wall of the interlocking wire harness embedding groove. The anti-deformation protective sleeve is further rotationally connected with a protective cover, and the protective cover is provided with a protruding buckle part for connecting with the buckle connecting groove. The protruding buckle part is buckled with the buckle connecting groove, so that the protective cover is pressed on the first copper bar or the second copper bar.

[0011] Optionally, the anti-deformation protective sleeve has a vertical isolation plate separating the first profiled clamping groove and the second profiled clamping groove. The vertical isolation plate is higher than the first copper bar clamped into the first profiled clamping groove and higher than the second copper bar clamped into the second profiled clamping groove.

[0012] Optionally, the first copper bar and the second copper bar are each provided with a vertical plate part and a horizontal plate part perpendicular to the vertical plate part, and the horizontal plate part is connected to the tail end of the vertical plate part away from the high-voltage connector sheath. The vertical plate part is clamped into the first profiled clamping groove or the second profiled clamping groove, and the threaded connecting hole is located on the horizontal plate part.

[0013] Optionally, the first profiled clamping groove includes a first extension groove segment, a second turning groove segment and a third extension groove segment which extend in sequence. The second turning groove segment is arranged obliquely relative to the first extension groove segment and the third extension groove segment, and the shape of the vertical plate part matches the shape of the first profiled clamping groove.

[0014] Optionally, a vertical isolation plate is arranged between the first profiled clamping groove and the second profiled clamping groove, and the first profiled clamping groove and the second profiled clamping groove are symmetrically arranged about the vertical isolation plate.

[0015] Optionally, a stop part is formed at the end of the anti-deformation protective sleeve away from the high-voltage connector sheath. The stop part connects the opposite side groove walls of the first profiled clamping groove and connects the opposite side groove walls of the second profiled clamping groove. The middle part of the stop section is hollowed out, and the top of the stop section is provided with a triangular structure.

[0016] A battery pack includes a high-voltage connector assembly structure as described in any of the preceding claims.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The high-voltage connector assembly structure and battery pack provided by the present invention, by providing an anti-deformation protective sleeve having a first conformal groove and a second conformal groove, allows the tail end of the first copper busbar to be at least partially engaged in the first conformal groove and the tail end of the second copper busbar to be at least partially engaged in the second conformal groove, thereby enabling the anti-deformation protective sleeve to hold and support the tail ends of the first and second copper busbars. The anti-deformation protective sleeve mainly bears the bolt tightening torque, thereby effectively reducing the possibility of deformation of the first and second copper busbars.

[0018] The present invention has other features and advantages, which will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the installation structure of the high-voltage connector assembly provided in an embodiment of the present invention; Figure 2 This is a top view schematic diagram of the high-voltage connector assembly structure provided in an embodiment of the present invention; Figure 3 yes Figure 2 Enlarged schematic diagram of the medium and high voltage connector assembly structure at position A; Figure 4 This is a top view schematic diagram of the anti-deformation protective sleeve provided in an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the anti-deformation protective sleeve provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the anti-deformation protective sleeve, the first copper busbar, and the second copper busbar provided in an embodiment of the present invention; Figure 7 yes Figure 6 A bottom-view diagram of the mid-structure; Figure 8 This is a three-dimensional structural diagram of the anti-deformation protective sleeve provided in an embodiment of the present invention from another view. Figure 9 This is a side view of the high-voltage connector assembly structure provided in an embodiment of the present invention under an explosive state.

[0021] Reference numerals: 1. High-voltage connector sheath; 11. First connecting part; 12. Second connecting part; 13. Third connecting part; 201. Threaded connecting hole; 21. First copper busbar; 211. Vertical plate part; 212. Horizontal plate part; 22. Second copper busbar; 3. Anti-deformation protective sleeve; 31. First contouring slot; 311. First extension slot section; 312. Second turning slot section; 313. Third extension slot section; 32. Second contouring slot; 33. First snap-fit ​​part; 331. First slot; 34. Second snap-fit ​​part; 341. Second slot; 305. Third snap-fit ​​part; 35. Interlocking wire harness embedding slot; 351. Snap-fit ​​connection slot; 36. Vertical isolation plate; 37. Stop part; 4. Protective cover; 41. Protruding snap-fit ​​part. Detailed Implementation

[0022] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0023] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0024] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0025] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0026] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0027] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0028] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0029] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0030] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0031] Example 1 In view of the defects existing in the current high-voltage connector assembly structure, the applicant, based on years of practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, actively researched and innovated to create a solution that could overcome the defects in the existing technology and make the high-voltage connector assembly structure more practical. After continuous research, design, and repeated prototype production and improvement, this invention with real practical value was finally created.

[0032] Please refer to Figures 1 to 9 This invention provides a high-voltage connector assembly structure, including a high-voltage connector sheath 1 and an anti-deformation protective sleeve 3.

[0033] A first copper busbar 21 and a second copper busbar 22 extend from the high-voltage connector sheath 1 and are separated from each other. The tail ends of the first copper busbar 21 and the second copper busbar 22 away from the high-voltage connector sheath 1 are provided with threaded connection holes 201. The anti-deformation protective sleeve 3 is snapped into the high-voltage connector sheath 1 and has a first contoured slot 31 and a second contoured slot 32. The tail end of the first copper busbar 21 is at least partially snapped into the first contoured slot 31 and the tail end of the second copper busbar 22 is at least partially snapped into the second contoured slot 32.

[0034] In this embodiment, the high-voltage connector assembly structure is equipped with an anti-deformation protective sleeve 3, which has a first contoured groove 31 and a second contoured groove 32. The tail end of the first copper busbar 21 is at least partially inserted into the first contoured groove 31, and the tail end of the second copper busbar 22 is at least partially inserted into the second contoured groove 32. This allows the anti-deformation protective sleeve 3 to hold and support the tail ends of the first copper busbar 21 and the second copper busbar 22. The anti-deformation protective sleeve mainly bears the bolt tightening torque, thereby effectively reducing the possibility of irreversible deformation of the first copper busbar 21 and the second copper busbar 22.

[0035] It should also be noted that when the first copper busbar 21 is inserted into the first contoured slot 31, the two sides of the end of the first copper busbar 21 furthest from the high-voltage connector sheath 1 respectively adhere to the opposite sides of the groove wall of the first contoured slot 31, thereby enabling the anti-deformation protective sleeve 3 to play a better anti-deformation role. Similarly, when the second copper busbar 22 is inserted into the second contoured slot 32, the two sides of the end of the second copper busbar 22 furthest from the high-voltage connector sheath 1 respectively adhere to the opposite sides of the groove wall of the second contoured slot 32.

[0036] like Figure 2As shown, when the threaded component is screwed into or out of the threaded connection hole 201, without the anti-deformation protective sleeve 3, the first copper busbar 21 and the second copper busbar 22 will deform to the left or right, causing irreversible deformation of the first copper busbar 21 and the second copper busbar 22. The first copper busbar 21 is engaged in the first contouring groove 31, and the second copper busbar 22 is engaged in the second contouring groove 32. The anti-deformation protective sleeve 3 can effectively support the first copper busbar 21 and the second copper busbar 22, preventing irreversible deformation of the first copper busbar 21 and the second copper busbar 22 to the left or right.

[0037] Optionally, the anti-deformation protective sleeve 3 is provided with a first snap-fit ​​portion 33, a second snap-fit ​​portion 34, and a third snap-fit ​​portion 305; the high-voltage connector sheath 1 forms a first connecting portion 11 for connecting and snapping with the first snap-fit ​​portion 33, a second connecting portion 12 for connecting and snapping with the second snap-fit ​​portion 34, and a third connecting portion 13 for connecting and snapping with the third snap-fit ​​portion 305; the first snap-fit ​​portion 33 and the second snap-fit ​​portion 34 have different shapes and are located at the tail of the anti-deformation protective sleeve 3 away from the high-voltage connector sheath 1; the third snap-fit ​​portion 305 is located on the side wall of the anti-deformation protective sleeve 3 and is opposite to the first snap-fit ​​portion 33 or the second snap-fit ​​portion 34.

[0038] In this embodiment, the first connecting part 11 and the second connecting part 12 can restrict the horizontal movement of the anti-deformation protective sleeve 3, and the third connecting part 13 can restrict the vertical movement of the anti-deformation protective sleeve 3. The first connecting part 11, the second connecting part 12 and the third connecting part 13 can position the anti-deformation protective sleeve 3 at a suitable height, thereby ensuring that the first copper busbar 21 is engaged in the first contouring slot 31 and the second copper busbar 22 is engaged in the second contouring slot 32.

[0039] Optionally, such as Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 9 As shown, the first engaging portion 33 forms a first slot 331, and the second engaging portion 34 forms a second slot 341; the width of the first slot 331 is different from the width of the second slot 341. The third connecting portion 13 forms a snap-fit ​​groove, and the third engaging portion 305 is a snap-fit ​​protrusion that can be snapped and fixed with the snap-fit ​​groove.

[0040] It should also be noted that the width of the first slot 331 is different from the width of the second slot 341, which will create a foolproof effect and effectively prevent the anti-deformation protective sleeve 3 from being installed incorrectly.

[0041] Optionally, the anti-deformation protective sleeve 3 forms an interlocking wire harness embedding groove 35, and the groove wall of the interlocking wire harness embedding groove 35 is provided with a snap-fit ​​connection groove 351; a protective cover 4 is also rotatably connected to the anti-deformation protective sleeve 3, and the protective cover 4 is provided with a protruding snap-fit ​​part 41 for connecting with the snap-fit ​​connection groove 351; the interlocking wire harness passes through the interlocking wire harness embedding groove 35 and is positioned by the interlocking wire harness embedding groove 35. The interlocking wire harness embedding groove 35 can prevent the interlocking wire harness from shaking and reduce the possibility of damage to the interlocking wire harness due to friction with surrounding parts.

[0042] The protruding buckle part 41 is snapped into the buckle connecting groove 351 so that the protective cover 4 presses on the first copper busbar 21 or the second copper busbar 22, avoiding the risk of short circuit when the first copper busbar 21 and the second copper busbar 22 are simultaneously connected by metal foreign objects.

[0043] Optionally, the anti-deformation protective sleeve 3 has a vertical isolation plate 36 separating the first conformal slot 31 and the second conformal slot 32; the vertical isolation plate 36 provides good insulation. The vertical isolation plate 36 is higher than the first copper busbar 21 inserted into the first conformal slot 31 and higher than the second copper busbar 22 inserted into the second conformal slot 32, thus better insulating and separating the first copper busbar 21 and the second copper busbar 22. The vertical isolation plate 36 increases the electrical clearance and creepage distance between the first copper busbar 21 and the second copper busbar 22, improving safety and reliability.

[0044] Optionally, both the first copper busbar 21 and the second copper busbar 22 are provided with a vertical plate portion 211 and a horizontal plate portion 212 perpendicular to the vertical plate portion 211. The horizontal plate portion 212 is connected to the tail end of the vertical plate portion 211 away from the high-voltage connector sheath 1. The vertical plate portion 211 is fully engaged in the first contoured slot 31 or the second contoured slot 32, and the threaded connection hole 201 is located on the horizontal plate portion 212. During the process of screwing the threaded part into the threaded connection hole 201, the vertical plate portion 211 remains engaged in the first contoured slot 31 or the second contoured slot 32, thereby effectively preventing the horizontal plate portion 212 from moving to the left or right, reducing the possibility of deformation of the first copper busbar 21 and the second copper busbar 22.

[0045] Optionally, the first contoured slot 31 includes a first extending slot segment 311, a second turning slot segment 312, and a third extending slot segment 313 extending sequentially; the second turning slot segment 312 is inclined relative to the first extending slot segment 311 and the third extending slot segment 313, and the shape of the vertical plate portion 211 matches the shape of the first contoured slot 31. Here, "matching" means that in each slot segment, the vertical plate portion 211 can at least fit against one side of the slot wall at that end, and can achieve a good positioning effect; preferably, the vertical plate portion 211 can fit against the opposite two sides of the slot wall at that end.

[0046] Optionally, a vertical partition plate 36 is provided between the first contouring slot 31 and the second contouring slot 32; the first contouring slot 31 and the second contouring slot 32 are symmetrically arranged about the vertical partition plate 36. Figure 9 As shown, during the installation process, the anti-deformation protective sleeve 3 is moved vertically upwards, so that the first copper busbar 21 is inserted into the first contouring slot 31, and the second copper busbar 22 is inserted into the second contouring slot 32.

[0047] Optionally, the end of the anti-deformation protective sleeve 3 furthest from the high-voltage connector sheath 1 has a stop portion 37. The stop portion 37 connects to the opposite side walls of the first contoured slot 31 and the opposite side walls of the second contoured slot 32. The outer peripheral side walls of the first contoured slot 31 and the second contoured slot 32 may be provided with reinforcing ribs to increase the strength of the anti-deformation protective sleeve 3. The stop portion 37 is hollow in the middle, which can effectively reduce weight and increase strength. More importantly, it can increase the electrical clearance and creepage distance of the first copper busbar 21 and the second copper busbar 22. The top of the stop portion 37 is provided with a triangular structure, which can reduce the amount of material used in the production process, thereby reducing production costs. The triangular structure is inserted at least partially between the first copper busbar 21 and the second copper busbar 22 to separate the first copper busbar 21 and the second copper busbar 22 that are too close together, thereby facilitating the insertion and installation of the anti-deformation protective sleeve 3.

[0048] Example 2 This embodiment discloses a battery pack, including a high-voltage connector assembly structure as described in any one of Embodiment 1.

[0049] Battery packs are used to power electrical devices, which can be cars, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, medical devices, and power tools, among others.

[0050] Among them, automobiles can be fuel-powered automobiles, natural gas-powered automobiles, or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc.; spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc.

[0051] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A high-voltage connector assembly structure, characterized in that, include: A high-voltage connector sleeve (1) extends from the high-voltage connector sleeve (1) with a first copper busbar (21) and a second copper busbar (22) that are separated from each other. The tail ends of the first copper busbar (21) and the second copper busbar (22) away from the high-voltage connector sleeve (1) are provided with threaded connection holes (201). The anti-deformation protective sleeve (3) is snapped into the high-voltage connector sleeve (1) and has a first contoured slot (31) and a second contoured slot (32). The tail end of the first copper busbar (21) is at least partially engaged in the first contoured slot (31), and the tail end of the second copper busbar (22) is at least partially engaged in the second contoured slot (32).

2. The high-voltage connector assembly structure according to claim 1, characterized in that, The anti-deformation protective sleeve (3) is provided with a first snap-fit ​​part (33), a second snap-fit ​​part (34) and a third snap-fit ​​part (305). The high-voltage connector sheath (1) forms a first connecting portion (11) for connecting and engaging with the first snap-fit ​​portion (33), a second connecting portion (12) for connecting and engaging with the second snap-fit ​​portion (34), and a third connecting portion (13) for connecting and engaging with the third snap-fit ​​portion (305). The first snap-fit ​​part (33) has a different shape from the second snap-fit ​​part (34) and is located at the tail of the anti-deformation protective sleeve (3) away from the high-voltage connector sleeve (1); The third snap-fit ​​part (305) is disposed on the side wall of the anti-deformation protective sleeve (3) and is opposite to the first snap-fit ​​part (33) or the second snap-fit ​​part (34).

3. The high-voltage connector assembly structure according to claim 2, characterized in that, The first snap-fit ​​portion (33) forms a first snap-fit ​​groove (331), and the second snap-fit ​​portion (34) forms a second snap-fit ​​groove (341). The width of the first card slot (331) is different from the width of the second card slot (341).

4. The high-voltage connector assembly structure according to claim 1, characterized in that, The anti-deformation protective sleeve (3) forms an interlocking wire harness embedding groove (35), and the groove wall of the interlocking wire harness embedding groove (35) is provided with a snap-fit ​​connection groove (351). The anti-deformation protective sleeve (3) is also rotatably connected to a protective cover (4), and the protective cover (4) is provided with a protruding buckle part (41) for connecting with the buckle connection groove (351). The protruding buckle (41) is snapped into the buckle connection groove (351) so that the protective cover (4) presses on the first copper busbar (21) or the second copper busbar (22).

5. The high-voltage connector assembly structure according to claim 1, characterized in that, The anti-deformation protective sleeve (3) has a vertical isolation plate (36) separating the first contouring slot (31) and the second contouring slot (32). The vertical isolation plate (36) is higher than the first copper busbar (21) that is inserted into the first contour slot (31) and higher than the second copper busbar (22) that is inserted into the second contour slot (32).

6. The high-voltage connector assembly structure according to claim 1, characterized in that, The first copper busbar (21) and the second copper busbar (22) are each provided with a vertical plate portion (211) and a horizontal plate portion (212) perpendicular to the vertical plate portion (211). The horizontal plate portion (212) is connected to the tail end of the vertical plate portion (211) away from the high voltage connector sheath (1). The vertical plate portion (211) is fully engaged in the first contoured slot (31) or the second contoured slot (32), and the threaded connection hole (201) is located on the horizontal plate portion (212).

7. The high-voltage connector assembly structure according to claim 6, characterized in that, The first contoured slot (31) includes a first extension slot segment (311), a second turning slot segment (312), and a third extension slot segment (313) that extend sequentially. The second turning groove segment (312) is inclined relative to the first extension groove segment (311) and the third extension groove segment (313), and the shape of the vertical plate portion (211) matches the shape of the first contoured slot (31).

8. The high-voltage connector assembly structure according to claim 7, characterized in that, A vertical partition plate (36) is provided between the first contoured slot (31) and the second contoured slot (32); the first contoured slot (31) and the second contoured slot (32) are symmetrically arranged about the vertical partition plate (36).

9. The high-voltage connector assembly structure according to claim 1, characterized in that, The anti-deformation protective sleeve (3) has a stop portion (37) formed at the end away from the high-voltage connector sleeve (1). The stop part (37) is connected to the opposite side walls of the first contoured slot (31) and to the opposite side walls of the second contoured slot (32). The middle part of the stop part (37) is hollowed out, and the top of the stop part (37) is provided with a triangular structure.

10. A battery pack, characterized in that, It includes a high-voltage connector assembly structure as described in any one of claims 1 to 9.