Connector device and high-voltage power distribution box

Abstract

The present application relates to a connector device and a high-voltage power distribution box. The connector device comprises a male connector assembly and a female connector assembly. The female connector assembly comprises an outer frame, an inner frame, a first elastic pressing portion, and a second elastic pressing portion, wherein the outer frame and the inner frame can slidably fit in a limiting manner along a preset axial direction; the first elastic pressing portion is connected to the inner frame, the inner side of the first elastic pressing portion is provided with an electrical receptacle cavity, and when the male connector assembly is inserted into the electrical receptacle cavity, the first elastic pressing portion can respectively apply elastic forces in opposite directions to two ends of the male connector assembly arranged opposite to each other in the preset axial direction; and the second elastic pressing portion is disposed between the inner frame and the outer frame, one end of the second elastic pressing portion is connected to one of the inner frame and the outer frame, and the other end of the second elastic pressing portion can respectively apply elastic forces in opposite directions to two ends, arranged opposite to each other in the preset axial direction, of the other of the inner frame and the outer frame. The connector device and high-voltage power distribution box provided in the present application solve the problems of plastic deformation of a male connector or a female connector of a connector and poor contact of the connector caused by loosening and displacement of fixing members of the connector.

Description

Connector and high-voltage distribution box

[0001] This application claims priority to Chinese Patent Application No. 2024116216620, filed on November 14, 2024, entitled "Connection Device and High Voltage Distribution Box"; Chinese Patent Application No. 2024227819735, filed on November 14, 2024, entitled "High Voltage Distribution Box"; and Chinese Patent Application No. 2024227922632, filed on November 14, 2024, entitled "Connection Structure and High Voltage Distribution Box", all of which are incorporated herein by reference. [Technical Field]

[0002] This application relates to the field of distribution box technology, and in particular to a plug-in device and a high-voltage distribution box. [Background Technology]

[0003] As the proportion of new energy electric vehicles in the market increases, the design requirements for high-voltage distribution boxes, as a crucial component of battery packs, are also becoming more stringent. A high-voltage distribution box is a highly integrated device that integrates modules such as a BMS control module, a battery pack power distribution module, and a high-voltage circuit protection module.

[0004] In existing technologies, electrical connections in high-voltage distribution boxes typically utilize connector assembly structures, where the male end of the connector is inserted into the female end to achieve electrical connection.

[0005] However, due to the large amount of vibration generated during long-term operation of the vehicle, the fasteners that fix the male and female ends of the connector may become loose. At this time, the male and female ends of the connector may undergo a large relative displacement, resulting in plastic deformation of the male or female ends of the connector, which in turn leads to poor contact of the connector and may even affect the driving safety of the vehicle. [Summary of the Invention]

[0006] The main objective of this application is to provide a connector and a high-voltage distribution box to solve the problem that vehicle vibration causes the fasteners of the connector to loosen and shift, resulting in plastic deformation of the male or female end of the connector, which in turn leads to poor contact of the connector.

[0007] This application provides a connector, including a male terminal assembly and a female terminal assembly for interlocking. The female terminal assembly includes an outer support, an inner support, a first spring-loaded part, and a second spring-loaded part. The outer support and the inner support are slidably and limitedly engaged along a preset axial direction. The first spring-loaded part is connected to the inner support, and an electrical connector slot is provided on the inner side of the first spring-loaded part. When the male terminal assembly is inserted into the electrical connector slot, the first spring-loaded part can apply elastic forces in opposite directions to the two ends of the male terminal assembly that are arranged opposite to each other along the preset axial direction. The second spring-loaded part is disposed between the inner support and the outer support, and one end of the second spring-loaded part is connected to one of the inner support and the outer support, while the other end can apply elastic forces in opposite directions to the two ends of the other that are arranged opposite to each other along the preset axial direction.

[0008] In some embodiments, the elastic coefficient of the second elastic compression portion is greater than that of the first elastic compression portion.

[0009] In some embodiments, the elastic coefficient of the second elastic compression portion is less than that of the first elastic compression portion.

[0010] In some embodiments, the first spring-loaded portion includes a first portion and a second portion that are independently disposed. The first portion and the second portion are distributed at two opposite ends of the male terminal assembly along a preset axial direction. An electrical connector slot is disposed between the first portion and the second portion. The first portion and the second portion are respectively connected to an inner bracket. The elastic force applied by the first portion to the male terminal assembly causes the male terminal assembly to tend to move toward the second portion. The elastic force applied by the second portion to the male terminal assembly causes the male terminal assembly to tend to move toward the first portion.

[0011] In some embodiments, both the first portion and the second portion are in the shape of a spring sheet, and the first portion and the second portion respectively apply elastic force to the male end component through their own bending deformation.

[0012] In some embodiments, the second spring-loaded portion includes a third portion and a fourth portion that are independently disposed at two ends of the inner support that are disposed opposite to each other along a predetermined axial direction. The elastic force applied by the third portion to the inner support causes the inner support to tend to move toward the fourth portion, and the elastic force applied by the fourth portion to the inner support causes the inner support to tend to move toward the third portion.

[0013] In some embodiments, the third and fourth portions are both in the form of spring plates, and the third and fourth portions apply elastic force to the internal support through their own bending deformation.

[0014] In some embodiments, one of the outer support and the inner support is provided with a groove extending along a preset axial direction, and the other is provided with a slider corresponding to the groove. The outer support and the inner support can slide together along the preset axial direction through the slider and the groove, and the slider can stop at both ends of the groove along the preset axial direction.

[0015] This application also provides a high-voltage distribution box, including a first fixing member, a second fixing member, and a connector device of any of the above embodiments. A male terminal assembly is fixedly connected to the first fixing member, and an outer bracket is fixedly connected to the second fixing member. The first fixing member is electrically connected to the second fixing member in sequence through the male terminal assembly, the first spring-loaded part, the inner bracket, the second spring-loaded part, and the outer bracket.

[0016] In some embodiments, the male end component is provided with multiple limiting protrusions, and the first fixing member is provided with a limiting slot corresponding to the limiting protrusion. The limiting protrusion and the limiting slot are set in a one-to-one correspondence and fixedly engaged. The distribution positions of the multiple limiting protrusions are located at each vertex of the polygon.

[0017] In some embodiments, the high-voltage distribution box includes a control unit and a power distribution unit;

[0018] The control unit includes a cover, a control circuit board, a base, and a control component assembly. The control component assembly is mounted on the control circuit board. The cover and the base are detachably connected, and the control circuit board is disposed between the cover and the base.

[0019] The power distribution unit includes a base and a power distribution component assembly, with the power distribution component assembly mounted on the base.

[0020] The first fixing component is one of the power distribution component group and the control circuit board, and the second fixing component is the other of the power distribution component group and the control circuit board. The male terminal component is inserted into the female terminal component so that the control component group can be electrically connected to the power distribution component group through the control circuit board and the connector.

[0021] In some embodiments, a screw is also included, one of the bottom shell and the base is provided with a stud, and the other is provided with a connecting hole. One end of the screw is threaded to the stud, and the other end is stopped at the opening of the connecting hole away from the stud, so that the bottom shell can be detachably connected to the base.

[0022] In some embodiments, the power distribution component group includes an on / off relay and a fluid carrier. The fluid carrier and the male terminal assembly are connected to the on / off relay by bolts. The female terminal assembly is fixed to the control circuit board by its own pins. The control component group can electrically connect the on / off relay through the control circuit board, the female terminal assembly, the male terminal assembly, and the fluid carrier.

[0023] In some embodiments, one of the cover and the base is provided with a buckle and the other with a slot, the buckle being able to engage with the slot so that the cover is detachably connected to the base.

[0024] In some embodiments, the cover is provided with a first abutment post and the base is provided with a second abutment post. The first abutment post and the second abutment post abut against the two end faces of the control circuit board respectively, so that the control circuit board is fixedly clamped between the cover and the base.

[0025] In some embodiments, both the first abutment post and the second abutment post are conical, and the conical tips of the first abutment post and the second abutment post abut against the control circuit board, respectively.

[0026] In some embodiments, the control component group includes a precharge relay and a precharge resistor, which are integrated on the control circuit board and electrically connected to the lines on the control circuit board.

[0027] In some embodiments, the power distribution component group includes a fluid carrier and multiple components; the high-voltage distribution box includes a connection structure, which includes a bottom shell, a fluid carrier and multiple components.

[0028] The two ends of the fluid carrier are defined as the first end and the second end, respectively. The first end and the second end of the fluid carrier are respectively assembled and electrically connected to different components. Along the direction from the first end to the second end, the fluid carrier is wound around the bottom of one component from one side wall and extends to the other side wall of the same component. Alternatively, the fluid carrier is wound around the bottom of multiple components from one side wall and extends to the side wall of another component.

[0029] The bottom shell is provided with an assembly groove, and the bottom wall of the assembly groove is provided with a through hole that penetrates the bottom shell. The fluid carrier is stuck in the through hole so that the bottom of the component can be attached to the bottom wall of the assembly groove.

[0030] In some embodiments, the components are detachably mounted in the mounting slots of the bottom housing.

[0031] In some embodiments, a first connecting plate and a second connecting plate are provided on opposite sides of the assembly groove, extending in a direction away from their own bottom wall. The end of the first connecting plate away from the bottom wall of the assembly groove is provided with a first upper buckle, and the end of the second connecting plate away from the bottom wall of the assembly groove is provided with a second upper buckle. The outer periphery of the component is provided with a first lower buckle and a second lower buckle. The end of the first connecting plate with the first upper buckle and the end of the second connecting plate with the second upper buckle can elastically deform in a direction away from each other, so that the first upper buckle can stop on the side of the first lower buckle away from the bottom wall of the assembly groove, and the second upper buckle can stop on the side of the second lower buckle away from the bottom wall of the assembly groove.

[0032] In some embodiments, the system further includes a surrounding panel that surrounds the periphery of the assembly slot, with one end of the panel fixedly connected to the bottom shell and the other end extending in a direction away from the bottom wall of the assembly slot.

[0033] In some embodiments, the enclosure includes a plurality of panels distributed circumferentially along the mounting groove, with adjacent panels spaced apart to form mounting notches.

[0034] In some embodiments, the component includes a branch circuit load protection element, which includes a plurality of branch units arranged in parallel. The bottom shell is also provided with a plurality of partition plates arranged in parallel. Adjacent partition plates are spaced apart to form a limiting groove. One end of the partition plate is fixedly connected to the bottom shell, and the other end extends in a direction away from the bottom wall of the limiting groove. Each limiting groove is used to assemble the corresponding branch unit.

[0035] In some embodiments, the coverage area A of the through hole on the bottom wall of the assembly groove and the area B of the bottom wall of the assembly groove satisfy A / B≤1 / 2.

[0036] Compared with the prior art, the plug-in device and high-voltage distribution box provided in this application can be understood to have a tendency to move relative to each other when the first fixing member connecting the male terminal component and the second fixing member connecting the female terminal component undergo relative displacement.

[0037] When the relative movement distance between the first fixing member and the second fixing member is small, the female end assembly can cooperate with the relative movement of the male end assembly and the female end assembly through slight elastic deformation of one or both of the first and second spring-loaded parts.

[0038] When the first and second fixing members move a large distance relative to each other, the female end assembly can achieve a wide range of relative movement between the male and female end assemblies through the relative sliding of the inner and outer supports. Furthermore, due to the presence of the first spring-loaded part, the male end assembly and the inner support can maintain an electrical connection. Due to the presence of the second spring-loaded part, the inner and outer supports can maintain an electrical connection, thereby ensuring a stable electrical connection between the first and second fixing members and preventing poor contact of the connector.

[0039] Furthermore, the simultaneous setting of the second and first elastic compression parts has the following advantages: First, the second and first elastic compression parts can compensate for each other, preventing either one from losing contact and improving the fault tolerance of the connector; Second, the second and first elastic compression parts can buffer each other to disperse stress, preventing either one from expanding or compressing too quickly or too much, which could lead to elastic failure of the first or second elastic compression part and improve the service life of the connector; Third, when the vehicle experiences continuous bumps and vibrations during operation, the first and second fixing parts will also reciprocate relative to each other. At this time, the inner bracket can drive the male end component to form a reciprocating elastic oscillation structure relative to the outer bracket, which can absorb vehicle vibration to the greatest extent and is conducive to the assembly stability of the connector.

[0040] Furthermore, the sliding fit between the first spring-loaded part, the second spring-loaded part, and the inner and outer supports can prevent plastic deformation of the male or female end components, greatly improving the service life of the connector.

[0041] Furthermore, when the male terminal component and electrical connector slot cannot be aligned during assembly, the male terminal component and female terminal component can be smoothly assembled by the relative sliding of the inner and outer brackets. [Attached Image Description]

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 is an exploded view of a portion of the structure of the high-voltage distribution box according to an embodiment provided in this application;

[0044] Figure 2 is an enlarged view of point Q shown in Figure 1;

[0045] Figure 3 is an enlarged view of point P shown in Figure 1;

[0046] Figure 4 is a schematic diagram of the structure of the mother-end component in an embodiment provided in this application;

[0047] Figure 5 is an exploded view of the assembly of the male end component and the first fastener in the embodiment provided in this application;

[0048] Figure 6 is a three-dimensional schematic diagram of the assembly structure of the high-voltage distribution box according to an embodiment of this application;

[0049] Figure 7 is an exploded view of the high-voltage distribution box in Figure 6.

[0050] Figure 8 is a partial cross-sectional view of the control unit of an embodiment provided in this application;

[0051] Figure 9 is a schematic diagram of the assembly structure of the male terminal component and the female terminal component in the embodiment provided in this application;

[0052] Figure 10 is a partial structural schematic diagram of the high-voltage distribution box according to an embodiment provided in this application;

[0053] Figure 11 is a schematic diagram of the connection structure of the high-voltage distribution box according to an embodiment of this application;

[0054] Figure 12 is an exploded view of the connection structure of the high-voltage distribution box in the embodiment provided in this application;

[0055] Figure 13 is a partial structural schematic diagram of the connection structure of the high-voltage distribution box in the embodiment provided in this application;

[0056] Figure 14 is a partial cross-sectional view of the connection structure of the high-voltage distribution box according to an embodiment provided in this application.

[0057] Figure label:

[0058] The reference numerals in this embodiment include: 1000, control unit; 2000, power distribution unit; 100, connector; 110, male terminal assembly; 1101, limiting protrusion; 120, female terminal assembly; 121, outer bracket; 1211, slide groove; 122, inner bracket; 1221, slider; 123, first spring-loaded part; 1231, first section; 1232, second section; 1233, electrical connector slot; 124, second spring-loaded part; 1241, third section; 1242, fourth section; 125, limiting latch. 200. Cover; 210. Connecting ear; 211. Slot; 220. First abutment post; 300. Base; 310. Buckle; 320. Second abutment post; 330. Connecting hole; 400A. Second fixing component; 400. Control circuit board; 401. Limiting slot; 500. Control component group; 510. Pre-charge relay; 520. Pre-charge resistor; 600. Bottom shell; 610. Stud; 601. Assembly slot; 611. First connecting plate; 612. First upper buckle; 613. Second connecting plate; 614. Second upper buckle; 620. Through hole; 630. Partition plate; 631. Limiting slot; 602. Enclosure plate; 6021. Divider plate; 6022. Mounting notch; 700A, First fixing component; 700, Power distribution component group; 710, On / off relay; 720, Current carrier; 730, Current shunt component; 740, Main circuit load protection component; 750, Branch circuit load protection component; 751, Branch unit; 701, Component; 7011, First lower latch; 7012, Second lower latch; 702, Limiting slot.

Detailed Implementation Methods

[0059] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0061] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0062] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0063] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0064] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0065] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "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 accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to 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 the embodiments of this application.

[0066] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0067] As the proportion of new energy electric vehicles in the market increases, the design requirements for high-voltage distribution boxes, as a crucial component of battery packs, are also becoming more stringent. A high-voltage distribution box is a highly integrated device that integrates modules such as a BMS control module, a battery pack power distribution module, and a high-voltage circuit protection module.

[0068] In existing technologies, electrical connections in high-voltage distribution boxes typically utilize connector assembly structures, where the male end of the connector is inserted into the female end to achieve electrical connection.

[0069] However, due to the large amount of vibration generated during long-term operation of the vehicle, the fasteners that fix the male and female ends of the connector may become loose. At this time, the male and female ends of the connector may undergo a large relative displacement, resulting in plastic deformation of the male or female ends of the connector, which in turn leads to poor contact of the connector and may even affect the driving safety of the vehicle.

[0070] To address the problem that vehicle vibration causes the fasteners of connectors to loosen and shift, resulting in plastic deformation of the male or female end of the connector and consequently poor contact, this application provides a connector device and a high-voltage distribution box.

[0071] Please refer to Figures 1-5. The connector includes a male end assembly 110 and a female end assembly 120 for mating. The female end assembly 120 includes an outer support 121, an inner support 122, a first spring-loaded part 123, and a second spring-loaded part 124. The outer support 121 and the inner support 122 can slide and limit their engagement along a preset axial direction, meaning that the outer support 121 and the inner support 122 can slide and engage within a limited range along the preset axial direction. Furthermore, the male end assembly 110 is fixedly connected to a first fixing member 700A, and the outer support 121 is fixedly connected to a second fixing member 400A. The first fixing member 700A is electrically connected to the second fixing member 400A sequentially through the male end assembly 110, the first spring-loaded part 123, the inner support 122, the second spring-loaded part 124, and the outer support 121.

[0072] It should be noted that the connector is a conductive structure, including but not limited to materials such as carbon nanotubes, graphene, conductive polymers and metallic elastic materials, which will not be listed here.

[0073] Specifically, as shown in Figures 2 and 4, the outer support 121 is in the shape of a frame, and the inner support 122 is also in the shape of a frame. It can be a quadrilateral frame or other polygonal frames. Of course, the outer support 121 and the inner support 122 can also be in other shapes such as I-shaped, which will not be listed here.

[0074] In one embodiment, as shown in Figures 2 and 4, one of the outer support 121 and the inner support 122 is provided with a groove 1211 extending along a preset axial direction, and the other is provided with a slider 1221 corresponding to the groove 1211. The outer support 121 and the inner support 122 can slide and engage along the preset axial direction through the slider 1221 and the groove 1211, and the slider 1221 can stop at both ends of the groove 1211 along the preset axial direction to limit the relative sliding distance of the outer support 121 and the inner support 122.

[0075] This configuration can significantly improve the sliding stability of the outer support 121 and the inner support 122.

[0076] However, this is not the only embodiment. In another embodiment, the outer support 121 and the inner support 122 can also be slidably fitted by a slide rail instead of a slide groove 1211 to reduce the sliding resistance between the outer support 121 and the inner support 122.

[0077] Furthermore, in one embodiment, taking the slider 1221 connected to the inner support 122 as an example, and the slider 1221 and the inner support 122 are integrally formed, specifically, the sidewall of the inner support 122 is cut to form a U-shaped cut slit, and then the inner support 122 at the U-shaped cut slit is bent toward the slide groove 1211 of the outer support 121 to form a slider 1221 protruding from the inner support 122, and the slider 1221 extends into the slide groove 1211. Furthermore, the width of the slider 1221 along the preset axial direction is smaller than the width of the slide groove 1211 along the preset axial direction, so that the slider 1221 can slide along the preset axial direction within the slide groove 1211.

[0078] However, this is not the only one. In other embodiments, the slider 1221 may also be fixed by welding or screwing to the inner bracket 122, etc., which will not be listed here.

[0079] The embodiment in which slider 1221 is connected to outer bracket 121 is similar to the embodiment in which slider 1221 is connected to inner bracket 122, and will not be described in detail here.

[0080] As shown in Figure 2, the first spring-loaded part 123 is connected to the inner bracket 122. The inner side of the first spring-loaded part 123 is provided with an electrical connector slot 1233. When the male end assembly 110 is inserted into the electrical connector slot 1233, the first spring-loaded part 123 can apply elastic forces in opposite directions to the two ends of the male end assembly 110 that are arranged opposite to each other along a preset axial direction.

[0081] It should be noted that, in one embodiment, as shown in Figures 2 and 4, the first spring-loaded part 123 includes two independently configured parts, defined as a first part 1231 and a second part 1232, respectively. The first part 1231 and the second part 1232 are distributed at both ends of the male end assembly 110 that are arranged opposite each other along a preset axial direction. The electrical connector slot 1233 is disposed between the first part 1231 and the second part 1232. Furthermore, the first part 1231 and the second part 1232 are respectively connected to the inner bracket 122. The elastic force applied by the first part 1231 to the male end assembly 110 causes the male end assembly 110 to have a tendency to move toward the second part 1232. Correspondingly, the elastic force applied by the second part 1232 to the male end assembly 110 causes the male end assembly 110 to have a tendency to move toward the first part 1231. That is, the elastic forces applied by the two parts are in opposite directions.

[0082] This configuration significantly enhances the linkage between the first elastic part 123 and the inner support 122, so that when the male end assembly 110 vibrates back and forth relative to the female end assembly 120, the male end assembly 110, the first elastic part 123, and the inner support 122 can form an overall displacement linkage, preventing any one of the male end assembly 110, the first elastic part 123, and the inner support 122 from undergoing plastic deformation due to excessive relative displacement.

[0083] However, this is not the only embodiment. In other embodiments, the first portion 1231 and the second portion 1232 may also be integrally formed. Specifically, the first portion 1231 and the second portion 1232 cooperate to form a structure similar to tweezers. The male end component 110 achieves elastic pressing of the first spring pressing portion 123 onto the male end component 110 by squeezing and expanding the first portion 1231 and the second portion 1232.

[0084] Furthermore, in one embodiment, as shown in Figures 2 and 4, both the first portion 1231 and the second portion 1232 are in the shape of spring sheets, and the first portion 1231 and the second portion 1232 respectively apply elastic force to the male end assembly 110 through their own bending deformation.

[0085] Specifically, one end of the first portion 1231 and one end of the second portion 1232 are respectively connected to the inner support 122, and the other ends of the first portion 1231 and the second portion 1232 extend toward each other and are pressed against the two ends of the male end assembly 110.

[0086] It should be noted that the first part 1231, the second part 1232 and the inner support 122 can be integrally formed or welded together. The former (integral forming) is formed by bending sheet metal, which has better elasticity and strength, while the latter (welding) is easier to process and helps to reduce processing costs.

[0087] However, this is not the only embodiment. In other embodiments, the first portion 1231 and the second portion 1232 may also be spring-shaped.

[0088] Furthermore, in one embodiment, as shown in Figures 2 and 4, the ends of the first portion 1231 and the second portion 1232 are bent in opposite directions, such that the distance between the ends of the first portion 1231 and the second portion 1232 is greater than the thickness of the male end assembly 110 along a predetermined axial direction, so that the male end assembly 110 can be inserted into the electrical connector slot 1233 between the first portion 1231 and the second portion 1232.

[0089] The second elastic compression part 124 is disposed between the inner support 122 and the outer support 121, and one end of the second elastic compression part 124 is connected to one of the inner support 122 and the outer support 121, and the other end can apply elastic forces in opposite directions to the two ends of the other support that are disposed opposite to each other along a preset axial direction.

[0090] It should be noted that, in one embodiment, as shown in Figures 2 and 4, the second spring-loaded part 124 includes two independently configured parts, defined as a third part 1241 and a fourth part 1242, respectively. The third part 1241 and the fourth part 1242 are distributed at opposite ends of the inner support 122 along a preset axial direction. Furthermore, the third part 1241 and the fourth part 1242 can be connected to the inner support 122, or the third part 1241 and the fourth part 1242 can be connected to the outer support 121, respectively. Alternatively, the third section 1241 and the fourth section 1242 are connected, one to the inner support 122 and the other to the outer support 121. The elastic force applied by the third section 1241 to the inner support 122 causes the inner support 122 to tend to move toward the direction closer to the fourth section 1242. Correspondingly, the elastic force applied by the fourth section 1242 to the inner support 122 causes the inner support 122 to tend to move toward the direction closer to the third section 1241. That is, the elastic forces applied by the two sections are in opposite directions.

[0091] It should be noted that since the outer support 121 cannot move, the elastic force (or reaction force) generated by the third part 1241 and the fourth part 1242 can be considered as acting on the inner support 122 to push the inner support 122 to move, regardless of whether the third part 1241 and the fourth part 1242 are connected to the inner support 122 or the outer support 121.

[0092] This configuration significantly enhances the linkage between the second elastic part 124 and the inner support 122, so that when the male end assembly 110 vibrates back and forth relative to the female end assembly 120, the male end assembly 110, the first elastic part 123, the inner support 122 and the second elastic part 124 can form an overall displacement linkage, preventing any one of the male end assembly 110, the second elastic part 124, the inner support 122 and the second elastic part 124 from undergoing plastic deformation due to excessive relative displacement.

[0093] However, this is not the only embodiment. In other embodiments, the third portion 1241 and the fourth portion 1242 may also be integrally formed. Specifically, the third portion 1241 and the fourth portion 1242 cooperate to form a structure similar to tweezers. The inner support 122 achieves elastic pressing of the second spring-loaded portion 124 onto the inner support 122 by squeezing and expanding the third portion 1241 and the fourth portion 1242.

[0094] Furthermore, in one embodiment, as shown in Figures 2 and 4, the third portion 1241 and the fourth portion 1242 are both in the shape of springs, and the third portion 1241 and the fourth portion 1242 apply elastic force to the inner support 122 through their own bending deformation.

[0095] Specifically, one end of the third portion 1241 and one end of the fourth portion 1242 are respectively connected to the outer support 121, and the other ends of the third portion 1241 and the fourth portion 1242 extend toward each other and are pressed against the two ends of the inner support 122.

[0096] Alternatively, one end of the third portion 1241 and one end of the fourth portion 1242 are respectively connected to the inner support 122, and the other ends of the third portion 1241 and the fourth portion 1242 extend in opposite directions and are pressed against the two ends of the outer support 121.

[0097] Alternatively, one of the third portion 1241 and the fourth portion 1242 is connected to the outer support 121, and the other of the third portion 1241 and the fourth portion 1242 extends in the same direction.

[0098] It should be noted that the third part 1241, the fourth part 1242 and the inner support 122 (or the outer support 121) can be integrally formed or welded together. The former (integral forming) is formed by bending sheet metal, which has better elasticity and strength, while the latter (welding) is easier to process and helps to reduce processing costs.

[0099] However, this is not the only embodiment; in other embodiments, the third portion 1241 and the fourth portion 1242 may also be spring-shaped.

[0100] It is understandable that when the first fixing member 700A connecting the male end assembly 110 and the second fixing member 400A connecting the female end assembly 120 undergo relative displacement, the male end assembly 110 and the female end assembly 120 will also tend to move relative to each other.

[0101] When the relative movement distance between the first fixing member 700A and the second fixing member 400A is small, the female end assembly 120 can cooperate with the relative movement of the male end assembly 110 and the female end assembly 120 through the slight elastic deformation of one or both of the first spring-loaded part 123 and the second spring-loaded part 124.

[0102] When the first fixing member 700A and the second fixing member 400A move a large distance relative to each other, the female end assembly 120 can achieve a large range of relative movement between the male end assembly 110 and the female end assembly 120 through the relative sliding of the inner bracket 122 and the outer bracket 121. Furthermore, due to the presence of the first spring-loaded part 123, it can be ensured that the male end assembly 110 and the inner bracket 122 can maintain an electrical connection. Due to the presence of the second spring-loaded part 124, it can be ensured that the inner bracket 122 and the outer bracket 121 can maintain an electrical connection, thereby ensuring a stable electrical connection between the first fixing member 700A and the second fixing member 400A and preventing poor contact of the connector.

[0103] Furthermore, the simultaneous arrangement of the second spring-loaded part 124 and the first spring-loaded part 123 has the following advantages: First, the second spring-loaded part 124 and the first spring-loaded part 123 can compensate for each other, preventing either one from losing contact and improving the fault tolerance of the connector; Second, the second spring-loaded part 124 and the first spring-loaded part 123 can buffer each other to disperse stress, preventing one of them from expanding or compressing too quickly or too much, which could lead to the elastic failure of the first spring-loaded part 123 or the second spring-loaded part 124, thus improving the service life of the connector; Third, when the vehicle experiences continuous bumps and vibrations during operation, the first fixing member 700A and the second fixing member 400A will also reciprocate relative to each other. At this time, the inner bracket 122 can drive the male end component 110 to form a reciprocating elastic oscillation structure relative to the outer bracket 121, which can absorb vehicle vibration to the greatest extent and is conducive to the assembly stability of the connector.

[0104] Furthermore, through the sliding cooperation of the first spring-loaded part 123, the second spring-loaded part 124, the inner support 122, and the outer support 121, plastic deformation of the male end component 110 or the female end component 120 can be prevented, greatly improving the service life of the connector.

[0105] Furthermore, when the male terminal component 110 and the electrical connector slot 1233 cannot be aligned during assembly, the male terminal component 110 and the female terminal component 120 can be smoothly assembled by the relative sliding of the inner bracket 122 and the outer bracket 121.

[0106] In one embodiment, the elastic coefficient of the second elastic part 124 is greater than that of the first elastic part 123.

[0107] Thus, when the relative movement distance between the first fixing member 700A and the second fixing member 400A is small, the female end assembly 120 can cooperate with the relative movement of the male end assembly 110 and the female end assembly 120 through the slight elastic deformation of the first spring-loaded part 123. At this time, the inner support 122 and the outer support 121 will hardly move relative to each other, and the deformation of the second spring-loaded part 124 is also small.

[0108] When the first fixing member 700A and the second fixing member 400A move a large distance relative to each other, the female end assembly 120 can drive the second spring-loaded part 124 to slide as a whole through the inner bracket 122 and the outer bracket 121, thereby realizing a large range of relative movement between the male end assembly 110 and the female end assembly 120.

[0109] That is, this arrangement is conducive to forming a two-stage moving mechanism that responds sequentially, with the first stage being the deformation of the first spring-loaded part 123 and the second stage being the deformation of the second spring-loaded part 124.

[0110] Furthermore, in one embodiment, the elastic stroke of the second elastic part 124 is greater than that of the first elastic part 123, so that the second elastic part 124 can absorb more deformation force.

[0111] In another embodiment, the elastic coefficient of the second elastic part 124 is less than that of the first elastic part 123.

[0112] Obviously, at this time, the deformation priority of the second spring-loaded part 124 is greater than that of the first spring-loaded part 123.

[0113] However, this is not the only embodiment. In other embodiments, the elastic coefficient of the second elastic part 124 is equal to the elastic coefficient of the first elastic part 123.

[0114] This arrangement facilitates the even distribution of stress on the first elastic compression part 123 and the second elastic compression part 124.

[0115] Furthermore, in one embodiment, the elastic stroke of the first elastic compression portion 123 is greater than the elastic stroke of the second elastic compression portion 124, so that the first elastic compression portion 123 can absorb more deformation force.

[0116] In one embodiment, as shown in FIG5, the male end component 110 is provided with a plurality of limiting protrusions 1101, and the first fixing member 700A is provided with a limiting slot 702 corresponding to the limiting protrusions 1101. The limiting protrusions 1101 and the limiting slots 702 are provided in a one-to-one correspondence and fixedly engaged. Furthermore, the distribution positions of the plurality of limiting protrusions 1101 are located at each vertex of the polygon.

[0117] For example, four limiting protrusions 1101 are distributed at the four vertices of a quadrilateral, and three limiting protrusions 1101 are distributed at the three vertices of a triangle, etc., which will not be listed here.

[0118] This configuration ensures, on the one hand, that the installation positions of the male terminal assembly 110 and the first fixing member 700A are accurate. On the other hand, the distribution of the multiple limiting protrusions 1101 is not on the same straight line, which prevents the tightening torque from failing to drive the male terminal assembly 110 to rotate relative to the first fixing member 700A when the fastening bolt tightens the male terminal assembly 110, thereby ensuring that the male terminal assembly 110 can be smoothly inserted into the electrical connector slot 1233.

[0119] In one embodiment, as shown in Figures 2-4, the outer bracket 121 of the female end assembly 120 is provided with a plurality of limiting feet 125, and the second fixing member 400A is provided with a limiting groove 401 corresponding to the limiting feet 125. The limiting feet 125 and the limiting grooves 401 are set and fixedly engaged in a one-to-one correspondence. Furthermore, the distribution positions of the plurality of limiting feet 125 are located at each vertex of the polygon.

[0120] For example, four limiting feet 125 are distributed at the four vertices of a quadrilateral, and three limiting feet 125 are distributed at the three vertices of a triangle, etc., which will not be listed here one by one.

[0121] This configuration ensures, on the one hand, that the installation position of the female end assembly 120 and the second fixing member 400A is accurate; on the other hand, the distribution of the multiple limiting feet 125 is not on the same straight line, which prevents the tightening torque from failing to drive the female end assembly 120 to rotate relative to the second fixing member 400A when the fastening bolts tighten the female end assembly 120, thereby ensuring that the male end assembly 110 can be smoothly inserted into the electrical connector slot 1233 on the female end assembly 120.

[0122] Please refer to Figures 1-5. This application also provides a high-voltage distribution box, which includes a first fixing member 700A, a second fixing member 400A, and the connector device described in any of the above embodiments. The male terminal assembly 110 is fixedly connected to the first fixing member 700A, and the outer bracket 121 is fixedly connected to the second fixing member 400A. The first fixing member 700A is electrically connected to the second fixing member 400A in sequence through the male terminal assembly 110, the first spring-loaded part 123, the inner bracket 122, the second spring-loaded part 124, and the outer bracket 121.

[0123] Please refer to Figures 6 to 10. This embodiment provides a high-voltage distribution box. The high-voltage distribution box provided in this embodiment has a plug-in device, and the plug-in device in the high-voltage distribution box of this embodiment has the same structure and principle as the plug-in device in the previous embodiment. This embodiment will be described in conjunction with the relevant figures of the previous embodiments.

[0124] In existing technologies, the components of adjacent modules within a high-voltage distribution box are mainly connected by wire harnesses. As a result, a large number of wire harnesses occupy the installation space inside the high-voltage distribution box, which is not conducive to the miniaturization of the high-voltage distribution box. Furthermore, since the wire harnesses cannot be connected, they cannot limit the movement of the components of adjacent modules. Therefore, the components of adjacent modules need to be limited by additional structures such as bolts, which makes the assembly of the high-voltage distribution box more difficult.

[0125] To address the problem that existing installation methods significantly encroach on the internal space of high-voltage distribution boxes and increase the assembly difficulty of high-voltage distribution boxes, this application provides a high-voltage distribution box. Please refer to Figure 6, which is a three-dimensional schematic diagram of the assembly structure of the high-voltage distribution box provided in an embodiment of this application. The high-voltage distribution box includes a control unit 1000 and a power distribution unit 2000.

[0126] Referring also to Figure 7, which is an exploded structural diagram of the high-voltage distribution box in Figure 6, the control unit 1000 includes a cover 200, a control circuit board 400, a base 300, and a control component group 500. The control component group 500 is connected to the control circuit board 400, and the cover 200 and the base 300 are detachably connected.

[0127] Specifically, in one embodiment, as shown in FIG7, one of the cover 200 and the base 300 is provided with a buckle 310 and the other is provided with a slot 211. The buckle 310 can be inserted into the slot 211 so that the cover 200 can be detachably connected to the base 300.

[0128] More specifically, as shown in Figure 7, taking the buckle 310 set on the base 300 as an example, the buckle 310 protrudes from the outer periphery of the base 300, the cover 200 is connected to a connecting ear 210 extending toward the base 300, the slot 211 is set on the connecting ear 210, the buckle 310 can squeeze the connecting ear 210 so that the connecting ear 210 elastically deforms outward until the buckle 310 is inserted into the slot 211, and the connecting ear 210 returns to its original shape.

[0129] However, this is not the only one. In other embodiments, the cover 200 and the base 300 can also be magnetically connected or screwed together, etc., which will not be listed here.

[0130] As shown in Figure 8, which is a partial cross-sectional view of the control unit of the embodiment provided in this application, a first abutment post 220 is provided on the side of the cover 200 facing the base 300, and a second abutment post 320 is provided on the side of the base 300 facing the cover 200. The first abutment post 220 and the second abutment post 320 respectively abut against the two end faces of the control circuit board 400, so that the control circuit board 400 is fixedly sandwiched between the cover 200 and the base 300, forming a structure similar to a sandwich.

[0131] By setting the first abutment post 220 and the second abutment post 320 to abut against the two end faces of the control circuit board 400 respectively, the control circuit board 400 and the control component group 500 can be quickly assembled between the cover 200 and the base 300, which greatly reduces the assembly difficulty of the high voltage distribution box.

[0132] Specifically, in one embodiment, as shown in FIG8, both the first abutment post 220 and the second abutment post 320 are conical, and the conical tips of the first abutment post 220 and the second abutment post 320 abut against the control circuit board 400 respectively. In this way, while ensuring the abutment strength, the contact area of ​​the first abutment post 220, the second abutment post 320 and the control circuit board 400 can be reduced, thereby improving the utilization space of the control circuit board 400.

[0133] It should be noted that the conical tips of the first abutment post 220 and the second abutment post 320 are only smaller in diameter than the bottom of the cone. However, the conical tips are not very sharp, but relatively blunt, to prevent them from piercing the control circuit board 400.

[0134] However, this is not the only embodiment. In other embodiments, the first abutment post 220 and the second abutment post 320 may also be cylindrical, prismatic, or other shapes, which will not be listed here.

[0135] In one embodiment, as shown in FIG7, the control component group 500 includes a precharge relay 510 and a precharge resistor 520. The precharge relay 510 and the precharge resistor 520 are respectively integrated on the control circuit board 400 and are respectively electrically connected to the lines on the control circuit board 400.

[0136] Specifically, the precharge relay 510 and precharge resistor 520 transmit signals directly to the lines on the control circuit board 400 through signal pins. Compared with the traditional wiring harness conversion scheme, this setting saves costs and improves space utilization.

[0137] Furthermore, in one embodiment, the signal pins of the precharge relay 510 (or precharge resistor 520) are electrically connected to the control circuit board 400 by soldering. This configuration allows for signal transmission while simultaneously fixing the precharge relay 510 (or precharge resistor 520). Moreover, the installation of the precharge relay 510 (or precharge resistor 520) is no longer limited by the position of the signal pins, allowing for the replacement of components with different power ratings to meet the operating conditions and electrical configuration requirements of different vehicle models, thus achieving multi-configuration capabilities.

[0138] However, this is not the only one. In other embodiments, the signal pins of the precharge relay 510 (or precharge resistor 520) and the control circuit board 400 can also be snap-fitted or crimped, etc., which will not be listed here.

[0139] Further, as shown in Figures 7-10, the power distribution unit 2000 includes a base shell 600 and a power distribution component group 700. The power distribution component group 700 is connected to the base shell 600. The high-voltage power distribution box also includes a connector 100. The specific structure of the connector 100 is shown in Figures 1 to 5 and the specific description of the connector in the aforementioned embodiments. In short, the connector 100 in this embodiment includes a male terminal component 110 and a female terminal component 120. One of the power distribution component group 700 and the control circuit board 400 is electrically connected to the male terminal component 110, and the other is electrically connected to the female terminal component 120. The male terminal component 110 is inserted into the female terminal component 120 so that the control component group 500 is electrically connected to the power distribution component group 700 through the control circuit board 400, the female terminal component 120, and the male terminal component 110.

[0140] As can be seen from the above, since the power distribution component group 700 and the control circuit board 400 are connected by plugging in the male terminal component 110 and the female terminal component 120, the power distribution components and the control components are electrically connected. Compared with the wire harness connection, the connection of the male terminal component 110 and the female terminal component 120 not only reduces the installation space required for the electrical connection between the control unit 1000 and the power distribution unit 2000, but also plays a certain limiting role in the connection between the control unit 1000 and the power distribution unit 2000. Therefore, there is no need to use bolts to strengthen the connection between the control unit 1000 and the power distribution unit 2000, thereby reducing the assembly difficulty of the high-voltage distribution box. It is understood that the male terminal component 110 and female terminal component 120 of the connector 100 in this application are actually used to realize the electrical connection between two components. For example, in this embodiment, they are used to realize the electrical connection between the control unit 1000 and the power distribution unit 2000. Specifically, they are used to realize the electrical connection between the power distribution component group 700 in the power distribution unit 2000 and the control circuit board 400 in the control unit 1000. Therefore, when the male terminal component 110 and female terminal component 120 of the connector 100 involved in the foregoing embodiment are used to electrically connect the first fixing member 700A and the second fixing member 400A, the first fixing member 700A can be one of the power distribution component group 700 and the control circuit board 400 in this embodiment, and the second fixing member 400A can be the other of the power distribution component group 700 and the control circuit board 400 in this embodiment.

[0141] It should be noted that the connector 100 is a conductive structure, including but not limited to materials such as carbon nanotubes, graphene, conductive polymers and metallic elastic materials, which will not be listed here.

[0142] In one embodiment, as shown in FIG9, the female end assembly 120 includes an outer support 121, an inner support 122, a first spring-loaded part 123, and a second spring-loaded part 124. The outer support 121 and the inner support 122 can slide and limit each other along a preset axial direction. The first spring-loaded part 123 is connected to the inner support 122, and an electrical connector slot 1233 is provided on the inner side of the first spring-loaded part 123. When the male end assembly 110 is inserted into the electrical connector slot 1233, the first spring-loaded part 123 can apply elastic forces in opposite directions to the two ends of the male end assembly 110 that are arranged opposite to each other along the preset axial direction. One end of the second spring-loaded part 124 is connected to the inner support 122, and the other end can apply elastic forces in opposite directions to the two ends of the outer support 121 that are arranged opposite to each other along the preset axial direction. The first spring-loaded part 123 can be a first spring sheet, and the second spring-loaded part 124 can be a second spring sheet, that is, both the first spring-loaded part 123 and the second spring-loaded part 124 are spring sheets.

[0143] Specifically, the outer support 121 is frame-shaped, and the inner support 122 is also frame-shaped. It can be a quadrilateral frame or other polygonal frames. Of course, the outer support 121 and the inner support 122 can also be I-shaped or other shapes, which will not be listed here.

[0144] Furthermore, in one embodiment, as shown in FIG9, the outer support 121 is provided with a groove 1211 extending along a preset axial direction, and the inner support 122 is provided with a slider 1221 corresponding to the groove 1211. The outer support 121 and the inner support 122 can slide and engage along the preset axial direction through the slider 1221 and the groove 1211, and the slider 1221 can stop at both ends of the groove 1211 along the preset axial direction to limit the relative sliding distance of the outer support 121 and the inner support 122.

[0145] This configuration can significantly improve the sliding stability of the outer support 121 and the inner support 122.

[0146] Furthermore, the inner support 122, the first spring-loaded part 123, the second spring-loaded part 124, and the slider 1221 are integral sheet metal forming structures.

[0147] The general structure of the male terminal component 110 and the female terminal component 120 has been described above. The further specific structure of the connector device 100 composed of the male terminal component 110 and the female terminal component 120 will not be repeated in this embodiment, in conjunction with Figures 1 to 5 and the detailed description of the foregoing embodiments.

[0148] In one embodiment, as shown in FIG7, the high-voltage distribution box further includes screws (not shown). One of the bottom shell 600 and the base 300 is provided with a stud 610, and the other is provided with a connecting hole 330. One end of the screw is threaded to the stud 610, and the other end is stopped at the opening of the connecting hole 330 away from the stud 610, so that the bottom shell 600 is detachably connected to the base 300. Specifically, the head of the screw stops at the opening of the connecting hole 330.

[0149] This configuration enhances the connection strength between the control unit 1000 and the power distribution unit 2000.

[0150] In one embodiment, as shown in FIG10, the power distribution component group 700 includes a switching relay 710, a current carrier 720 (including but not limited to copper busbars and aluminum busbars), a shunt component 730, a main circuit load protection component 740, and a branch circuit load protection component 750. Furthermore, the current carrier 720 and the male terminal assembly 110 are pre-installed and connected to the switching relay 710 by bolts. The female terminal assembly 120 is fixed to the control circuit board 400 by pins. The control component group 500 can electrically connect to the switching relay 710 through the control circuit board 400, the female terminal assembly 120, the male terminal assembly 110, and the current carrier 720, thereby replacing the high-voltage sampling of traditional wiring harnesses.

[0151] It should be noted that the branch circuit load protection device 750 includes, but is not limited to, compressor switching power supply, two-in-one controller (integrating the on-board charger and DC / DC converter into a high-voltage module, this integration method is called two-in-one controller), PTC heater fuse, etc., which can be configured and selected according to different electrical architecture requirements.

[0152] Furthermore, the compatible design of the main circuit load protection component 740 allows for the selection and configuration of appropriate components based on the operating conditions and electrical requirements of different vehicle models.

[0153] Specifically, the function of the on / off relay 710 is to control the on / off of the high-voltage circuit. The on / off relay 710 includes a main negative relay, a main positive relay, a fast charging positive relay, a fast charging negative relay, and a heating relay. It realizes the on / off control of the main circuit, the on / off control of fast charging, and the protection of the heating circuit according to the electrical architecture. The configuration can be selected according to the requirements of different vehicle models.

[0154] In one embodiment, the power distribution unit is provided with external interfaces such as a battery negative interface, a battery positive interface, a reverse interface (the reverse interface can be used as the range extender interface of a range-extended vehicle, or it can be used as the electric drive controller interface according to the battery pack interface requirements of different vehicle models), an MCU (microprocessor) electric drive controller interface, a fast charging positive interface, and a fast charging negative interface.

[0155] Furthermore, all external interfaces are located vertically, allowing operators to easily connect and maintain the high-voltage distribution box to the outside using tools when it is installed inside the battery pack.

[0156] As can be seen from the above, the high-voltage power distribution box of the present invention integrates a configurable electrical architecture, laying the foundation for vehicle generalization. At the same time, the compact component layout also realizes miniaturization design and improves the space utilization of the high-voltage power distribution box.

[0157] Please refer to Figures 11 to 14. This embodiment provides a connection structure inside a high-voltage distribution box. The connection structure of this embodiment is used to describe in detail the assembly structure of the bottom shell 600 and the power distribution component group 700 in the high-voltage distribution box of the previous embodiment. This embodiment is introduced in conjunction with the relevant drawings of the previous embodiment.

[0158] High-voltage distribution boxes typically connect various high-voltage devices via current carriers 720 (including copper busbars, aluminum busbars, etc.) and conduct current to these devices. Since current carriers 720 generally have a certain resistance, the larger the current, the more pronounced the heating effect of current carriers 720. If heat cannot be dissipated in time, it may cause circuit failure or even thermal runaway in the entire high-voltage distribution box.

[0159] To address the problem of thermal runaway in existing fluid carriers, this embodiment provides a connection structure for a high-voltage distribution box. This connection structure includes a base shell 600, a fluid carrier 720, and multiple components 701. The multiple components 701 in this embodiment may include, but are not limited to, the on / off relay 710, the main circuit load protection component 740, and the branch circuit load protection component 750 in the aforementioned distribution component group 700, and may also include current sensors, etc. The main circuit load protection component 740 may be a main circuit load protection unit, and the branch circuit load protection component 750 may be a branch circuit load protection unit.

[0160] The two ends of the fluid carrier 720 are defined as the first end and the second end, respectively. The first end and the second end of the fluid carrier 720 are respectively assembled and electrically connected to different components 701. Along the direction from the first end to the second end, the fluid carrier 720 is wound around the bottom of one component 701 from one side wall and extends to the other side wall of the same component 701. Alternatively, the fluid carrier 720 is wound around the bottom of multiple components 701 from one side wall and extends to the side wall of another component 701.

[0161] The bottom shell 600 is provided with an assembly groove 601. The bottom wall of the assembly groove 601 is provided with a through hole 620 that penetrates the bottom shell 600. The fluid carrier 720 is engaged in the through hole 620 so that the bottom of the component 701 can be attached to the bottom wall of the assembly groove 601.

[0162] Specifically, the through hole 620 can be square, round, or other shapes, which will not be listed here.

[0163] First, by providing a through hole 620, the portion of the fluid carrier 720 protruding from the bottom wall of the component 701 can be accommodated within the through hole 620. This prevents the fluid carrier 720 from affecting the stable fit between the component 701 and the bottom wall of the assembly groove 601. Furthermore, the through hole 620 also provides a certain degree of restraint for the fluid carrier 720, preventing displacement between the fluid carrier 720 and the component 701. Therefore, by providing a through hole 620 in the bottom wall of the assembly groove 601, not only is the structure simplified, but the volume of the connection structure can also be significantly reduced, which is beneficial for the miniaturization of the high-voltage distribution box.

[0164] Furthermore, since the through hole 620 penetrates the bottom shell 600, the heat of the fluid 720 can be dissipated through the through hole 620 to the atmosphere outside the bottom shell 600 or to the liquid cooling plate, which is beneficial to the heat dissipation of the fluid 720.

[0165] In one embodiment, the coverage area A of the through hole 620 on the bottom wall of the assembly groove 601 and the area B of the bottom wall of the assembly groove 601 satisfy that A / B≤1 / 2.

[0166] This design improves the assembly strength of the base shell 600 and the component 701, and prevents the bottom wall of the assembly groove 601 from being damaged due to the excessive area of ​​the through hole 620.

[0167] In one embodiment, as shown in Figures 13 and 14, component 701 is detachably mounted in the mounting slot 601 of the bottom housing 600.

[0168] This facilitates the disassembly and installation of component 701, and also facilitates the individual repair of component 701.

[0169] However, this is not the only embodiment. In other embodiments, component 701 may also be soldered to the mounting groove 601 of the bottom shell 600.

[0170] Further, in one embodiment, as shown in Figures 13 and 14, the assembly groove 601 has a first connecting plate 611 and a second connecting plate 613 extending away from its bottom wall on opposite sides. The first connecting plate 611 has a first upper buckle 612 at one end away from the bottom wall of the assembly groove 601, and a first lower buckle 7011 at the outer periphery of the component 701. The second connecting plate 613 has a second upper buckle 614 at one end away from the bottom wall of the assembly groove 601, and a second lower buckle 7012 at the outer periphery of the component 701. The end of the first connecting plate 611 with the first upper buckle 612 and the end of the second connecting plate 613 with the second upper buckle 614 can elastically deform in a direction away from each other, so that the first upper buckle 612 can stop the first lower buckle 7011 on the side away from the bottom wall of the assembly groove 601, and the second upper buckle 614 can stop the second lower buckle 7012 on the side away from the bottom wall of the assembly groove 601.

[0171] Specifically, when component 701 moves toward the bottom wall of assembly groove 601 and is installed, the first lower latch 7011 can push the first upper latch 612 to cause one end of the first connecting plate 611 to elastically deform in a direction away from the second connecting plate 613. The second lower latch 7012 can also push the second upper latch 614 to cause one end of the second connecting plate 613 to elastically deform in a direction away from the first connecting plate 611, until the first upper latch 612 stops at the side of the first lower latch 7011 away from the bottom wall of assembly groove 601. At this time, the first upper latch 612 and the bottom wall of assembly groove 601 jointly limit the height of component 701. Furthermore, the second upper latch 614 stops at the side of the second lower latch 7012 away from the bottom wall of assembly groove 601. At this time, the second upper latch 614 and the bottom wall of assembly groove 601 jointly limit the height of component 701.

[0172] This design facilitates the rapid assembly of component 701 on assembly slot 601, improving the installation efficiency of the connection structure.

[0173] However, it is not limited to this. In other embodiments, it can also be a combination of a buckle and a slot. That is, one of the assembly slot 601 and the component 701 is provided with a buckle, and the other is provided with a slot, so that the component 701 can be detachably installed in the assembly slot 601.

[0174] In one embodiment, as shown in FIG13, the connection structure further includes a surrounding plate 602, which surrounds the periphery of the assembly groove 601, and one end of the surrounding plate 602 is fixedly connected to the bottom shell 600, while the other end extends in a direction away from the bottom wall of the assembly groove 601.

[0175] In this way, the component 701 can be further limited to prevent it from moving relative to the bottom shell 600.

[0176] Furthermore, in one embodiment, as shown in FIG13, the enclosure 602 includes a plurality of sub-plates 6021 distributed circumferentially along the assembly groove 601, with adjacent sub-plates 6021 spaced apart to form mounting notches 6022.

[0177] By setting the installation notch 6022, installation space can be reserved for the fluid carrier 720 and the diverter 730.

[0178] However, this is not the only option. In other embodiments, the enclosure 602 may also be continuous, and a continuous enclosure 602 provides a more secure hold for the component 701.

[0179] In one embodiment, as shown in FIG11, the connection structure further includes a flow divider 730, through which one end of the fluid carrier 720 is electrically connected to a plurality of components 701 respectively. The flow divider 730 may be a flow splitter.

[0180] This configuration reduces the number of fluid carriers 720 and improves their carrying efficiency.

[0181] In one embodiment, as shown in Figures 11-13, component 701 includes a branch circuit load protection component 750, which can be a branch circuit load protection unit. The branch circuit load protection component 750 includes multiple branch units 751 arranged in parallel. The bottom shell 600 is also provided with multiple partition plates 630 arranged in parallel. Adjacent partition plates 630 are spaced apart to form limiting grooves 631. One end of the partition plate 630 is fixedly connected to the bottom shell 600, and the other end extends in a direction away from the bottom wall of the limiting groove 631. Each limiting groove 631 is used to assemble the corresponding branch unit 751.

[0182] This can solve the problem of misaligned assembly.

[0183] This application also provides a high-voltage distribution box, which includes the connection structure described in any of the above embodiments.

[0184] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A connector device, characterized by comprising: It includes a male end assembly (110) and a female end assembly (120) that are connected and interlocked. The female end assembly (120) includes an outer support (121), an inner support (122), a first spring-loaded part (123), and a second spring-loaded part (124). The outer support (121) and the inner support (122) can slide and limit each other along a preset axis. The first spring-loaded part (123) is connected to the inner bracket (122). The inner side of the first spring-loaded part (123) is provided with an electrical connector slot (1233). When the male terminal assembly (110) is inserted into the electrical connector slot (1233), the first spring-loaded part (123) can apply elastic forces in opposite directions to the two ends of the male terminal assembly (110) that are arranged opposite to each other along a preset axial direction. The second elastic part (124) is disposed between the inner support (122) and the outer support (121), and one end of the second elastic part (124) is connected to one of the inner support (122) and the outer support (121), and the other end can apply elastic forces in opposite directions to the two ends of the other support that are disposed opposite to each other along a preset axial direction.

2. The connector assembly of claim 1, wherein, The elastic coefficient of the second elastic part (124) is greater than that of the first elastic part (123).

3. The connector assembly of claim 1, wherein: The elastic coefficient of the second elastic part (124) is less than that of the first elastic part (123).

4. The connector assembly of claim 1, wherein, The first spring-loaded part (123) includes an independently disposed first portion (1231) and a second portion (1232). The first portion (1231) and the second portion (1232) are distributed at both ends of the male terminal assembly (110) which are disposed opposite each other along a preset axial direction. The electrical connector slot (1233) is disposed between the first portion (1231) and the second portion (1232). The first portion (1231) and the second portion (1232) are respectively connected to the inner bracket (122). The elastic force applied by the first portion (1231) to the male terminal assembly (110) causes the male terminal assembly (110) to have a tendency to move toward the second portion (1232). The elastic force applied by the second portion (1232) to the male terminal assembly (110) causes the male terminal assembly (110) to have a tendency to move toward the first portion (1231).

5. The connector assembly of claim 4, wherein: Both the first portion (1231) and the second portion (1232) are in the shape of springs, and the first portion (1231) and the second portion (1232) respectively apply elastic force to the male end assembly (110) through their own bending deformation.

6. The connector assembly of claim 1, wherein: The second elastic compression part (124) includes a third part (1241) and a fourth part (1242) that are independently arranged. The third part (1241) and the fourth part (1242) are distributed at both ends of the inner support (122) that are arranged opposite to each other along a preset axial direction. The elastic force applied by the third part (1241) to the inner support (122) causes the inner support (122) to have a tendency to move toward the fourth part (1242). The elastic force applied by the fourth part (1242) to the inner support (122) causes the inner support (122) to have a tendency to move toward the third part (1241).

7. The connector assembly of claim 6, wherein: Both the third section (1241) and the fourth section (1242) are in the shape of springs, and the third section (1241) and the fourth section (1242) respectively apply elastic force to the inner support (122) through their own bending deformation.

8. The connector assembly of claim 1, wherein: One of the outer support (121) and the inner support (122) is provided with a groove (1211) extending along a preset axial direction, and the other is provided with a slider (1221) corresponding to the groove (1211). The outer support (121) and the inner support (122) can slide together along the preset axial direction through the slider (1221) and the groove (1211), and the slider (1221) can stop at both ends of the groove (1211) along the preset axial direction.

9. A high voltage distribution box characterized by, The device includes a first fixing member (700A), a second fixing member (400A), and a connector as described in any one of claims 1-8. The male end assembly (110) is fixedly connected to the first fixing member (700A), and the outer bracket (121) is fixedly connected to the second fixing member (400A). The first fixing member (700A) is electrically connected to the second fixing member (400A) in sequence through the male end assembly (110), the first spring-loaded part (123), the inner bracket (122), the second spring-loaded part (124), and the outer bracket (121).

10. The high-voltage distribution box of claim 9, wherein, The male end component (110) is provided with a plurality of limiting protrusions (1101), and the first fixing member (700A) is provided with a limiting slot (702) corresponding to the limiting protrusions (1101). The limiting protrusions (1101) and the limiting slots (702) are provided in a one-to-one correspondence and fixedly engaged. The distribution positions of the plurality of limiting protrusions (1101) are located at each vertex of the polygon.

11. The high voltage distribution box of claim 9, wherein, The high-voltage distribution box includes a control unit (1000) and a distribution unit (2000); The control unit (1000) includes a cover (200), a control circuit board (400), a base (300), and a control component group (500). The control component group (500) is mounted on the control circuit board (400). The cover (200) and the base (300) are detachably connected. The control circuit board (400) is disposed between the cover (200) and the base (300). The power distribution unit (2000) includes a base (600) and a power distribution component group (700), wherein the power distribution component group (700) is mounted on the base (600); The first fixing member (700A) is one of the power distribution component group (700) and the control circuit board (400), and the second fixing member (400A) is the other of the power distribution component group (700) and the control circuit board (400). The male terminal assembly (110) is inserted into the female terminal assembly so that the control component group (500) can be electrically connected to the power distribution component group (700) through the control circuit board (400) and the connector (100).

12. The high-voltage distribution box of claim 11, wherein, It also includes screws. One of the bottom shell (600) and the base (300) is provided with a stud (610), and the other is provided with a connecting hole (330). One end of the screw is threaded to the stud (610), and the other end is stopped at the opening of the connecting hole (330) away from the stud (610), so that the bottom shell (600) can be detachably connected to the base (300).

13. The high-voltage distribution box of claim 11, wherein, The power distribution component group (700) includes an on / off relay (710) and a current carrier (720). The current carrier (720) and the male terminal assembly (110) are connected to the on / off relay (710) by bolts. The female terminal assembly is fixed to the control circuit board (400) by its own pins. The control component group (500) can be electrically connected to the on / off relay (710) through the control circuit board (400), the female terminal assembly (120), the male terminal assembly (110), and the current carrier (720).

14. The high-voltage distribution box of claim 11, wherein, One of the cover (200) and the base (300) is provided with a buckle (310) and the other is provided with a slot (211). The buckle (310) can be engaged with the slot (211) so that the cover (200) can be detachably connected to the base (300).

15. The high voltage distribution box of claim 11, wherein, The cover (200) is provided with a first abutment post (220), and the base (300) is provided with a second abutment post (320). The first abutment post (220) and the second abutment post (320) respectively abut against the two end faces of the control circuit board (400) so that the control circuit board (400) is fixedly clamped between the cover (200) and the base (300).

16. The high-voltage distribution box of claim 15, wherein, Both the first abutment post (220) and the second abutment post (320) are conical, and the conical tips of the first abutment post (220) and the second abutment post (320) abut against the control circuit board (400) respectively.

17. The high-voltage distribution box of claim 11, wherein, The control component group (500) includes a precharge relay (510) and a precharge resistor (520). The precharge relay (510) and the precharge resistor (520) are respectively integrated on the control circuit board (400) and are respectively electrically connected to the lines on the control circuit board (400).

18. The high-voltage distribution box of claim 11, wherein, The power distribution component group (700) includes a fluid carrier (720) and multiple components (701); the high-voltage distribution box includes a connection structure, which includes the bottom shell (600), the fluid carrier (720) and multiple components (701); The two ends of the fluid carrier (720) are defined as a first end and a second end, respectively. The first end and the second end of the fluid carrier (720) are respectively assembled and electrically connected to different components (701). Along the direction from the first end to the second end, the fluid carrier (720) is wound around the bottom of one of the components (701) from one side wall and extends to the other side wall of the same component (701). Alternatively, the fluid carrier (720) is wound around the bottom of multiple components (701) from one side wall and extends to the side wall of another component (701). The bottom shell (600) is provided with an assembly groove (601), and the bottom wall of the assembly groove (601) is provided with a through hole (620) penetrating the bottom shell (600). The fluid carrier (720) is engaged in the through hole (620) so that the bottom of the component (701) can be attached to the bottom wall of the assembly groove (601).

19. The high-voltage distribution box of claim 18, wherein, The component (701) is detachably installed in the mounting slot (601) of the bottom shell (600).

20. The high-voltage distribution box of claim 19, wherein, The assembly groove (601) has a first connecting plate (611) and a second connecting plate (613) extending away from its bottom wall on opposite sides. The first connecting plate (611) has a first upper buckle (612) at the end away from the bottom wall of the assembly groove (601), and the second connecting plate (613) has a second upper buckle (614) at the end away from the bottom wall of the assembly groove (601). The outer periphery of the component (701) has a first lower buckle (7011) and a second lower buckle (7012). The first connecting plate (611) with the first upper buckle (612) at one end and the second connecting plate (613) with the second upper buckle (614) at one end can elastically deform in a direction away from each other, so that the first upper buckle (612) can stop the first lower buckle (7011) on the side away from the bottom wall of the assembly groove (601), and the second upper buckle (614) can stop the second lower buckle (7012) on the side away from the bottom wall of the assembly groove (601).

21. The high-voltage distribution box of claim 18, wherein, It also includes a surrounding panel (602), which surrounds the periphery of the assembly groove (601), and one end of the surrounding panel (602) is fixedly connected to the bottom shell (600), while the other end extends in a direction away from the bottom wall of the assembly groove (601).

22. The high-voltage distribution box of claim 21, wherein, The enclosure (602) includes a plurality of sub-plates (6021) distributed circumferentially along the assembly groove (601), with adjacent sub-plates (6021) spaced apart to form installation notches (6022).

23. The high-voltage distribution box of claim 18, wherein, The component (701) includes a branch circuit load protection component (750), which includes a plurality of branch units (751) arranged in parallel. The bottom shell (600) is also provided with a plurality of partition plates (630) arranged in parallel. Adjacent partition plates (630) are spaced apart to form limiting grooves (631). One end of the partition plate (630) is fixedly connected to the bottom shell (600), and the other end extends in a direction away from the bottom wall of the limiting groove (631). Each limiting groove (631) is used to assemble the corresponding branch unit (751).

24. The high-voltage distribution box of claim 18, wherein, The coverage area A of the through hole (620) on the bottom wall of the assembly groove (601) and the area B of the bottom wall of the assembly groove (601) satisfy that A / B≤1 / 2.

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