High-voltage distribution box

Abstract

The utility model relates to a high-voltage power distribution box, the high-voltage power distribution box comprises a control unit and a power distribution unit, the control unit comprises a cover body, a control circuit board, a base, a plugging device and a control component group, the control component group is installed on the control circuit board, the cover body and the base are detachably connected, and the control circuit board is arranged between the cover body and the base. The power distribution unit comprises a bottom shell and a power distribution component set, the power distribution component set is installed on the bottom shell, the plugging device comprises a male end assembly and a female end assembly, one of the power distribution component set and the control circuit board is electrically connected with the male end assembly, the other one is electrically connected with the female end assembly, and the male end assembly is inserted into the female end assembly. And the control component group can be electrically connected with the power distribution component group through the control circuit board and the plugging device. According to the high-voltage distribution box provided by the invention, the problems that a large amount of internal space of the high-voltage distribution box is occupied and the assembly difficulty of the high-voltage distribution box is increased in an existing installation mode are solved.

Description

Technical Field

[0001] The present application relates to the technical field of high-voltage control distribution modules, and in particular to a high-voltage distribution box. Background Art

[0002] As the proportion of new energy electric vehicles in the market continues to rise, the design requirements for high-voltage distribution boxes, as a key component of the battery pack, are becoming increasingly stringent. The high-voltage distribution box is a highly integrated device that integrates the BMS control module, battery pack power distribution module, high-voltage circuit protection module, and other modules.

[0003] In the prior art, the various components of adjacent modules in the high-voltage distribution box are mainly connected through wiring harnesses. In this way, a large number of wiring harnesses will occupy the installation space inside the high-voltage distribution box, which is not conducive to the miniaturization of the high-voltage distribution box. Moreover, the wiring harnesses cannot be connected and cannot play a limiting role on the various components of the adjacent modules. Therefore, the various components of the adjacent modules need to be limited by additional structures such as bolts, which makes the assembly of the high-voltage distribution box more difficult. Utility Model Content

[0004] Based on this, it is necessary to provide a high-voltage distribution box to solve the problem that the existing installation method will occupy a large amount of internal space of the high-voltage distribution box and increase the difficulty of assembling the high-voltage distribution box.

[0005] The high-voltage distribution box provided in this application includes a control unit and a power distribution unit. The control unit includes a cover, a control circuit board, a base, a connector, and a control component group. The control component group 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. The power distribution unit includes a bottom shell and a power distribution component group. The power distribution component group is mounted on the bottom shell. The connector includes a male end assembly and a female end assembly. One of the power distribution component group and the control circuit board is electrically connected to the male end assembly, and the other is electrically connected to the female end assembly. The male end assembly is inserted into the female end assembly so that the control component group can be electrically connected to the power distribution component group via the control circuit board and the connector.

[0006] In one embodiment, the high-voltage distribution box also includes a screw, 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 threadedly connected 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.

[0007] In one embodiment, the power distribution component group includes an on-off relay and a current carrier, the current carrier and the male end assembly are connected to the on-off relay by bolts, and the female end assembly is fixed to the control circuit board by its own pins. The control component group can be electrically connected to the on-off relay through the control circuit board, the female end assembly, the male end assembly and the current carrier.

[0008] In one embodiment, one of the cover and the base is provided with a buckle, and the other is provided with a slot, and the buckle can be snapped into the slot, so that the cover can be detachably connected to the base.

[0009] In one embodiment, the cover is provided with a first abutting post, and the base is provided with a second abutting post. The first abutting post and the second abutting post respectively abut against the two side end surfaces of the control circuit board so that the control circuit board is fixedly clamped between the cover and the base.

[0010] In one embodiment, the first abutting post and the second abutting post are both conical, and the conical tips of the first abutting post and the second abutting post respectively abut against the control circuit board.

[0011] In one embodiment, the control component group includes a pre-charging relay and a pre-charging resistor, and the pre-charging relay and the pre-charging resistor are respectively integrated on the control circuit board and electrically connected to the circuits on the control circuit board.

[0012] In one embodiment, the signal pin of the pre-charge relay is welded to the control circuit board; and / or the signal pin of the pre-charge resistor is welded to the control circuit board.

[0013] In one embodiment, the female end assembly includes an outer bracket, an inner bracket, a first spring sheet and a second spring sheet, and the outer bracket and the inner bracket can slide and limit together along a preset axial direction; the first spring sheet is connected to the inner bracket, and an electrical connection slot is provided on the inner side of the first spring sheet. When the male end assembly is inserted into the electrical connection slot, the first spring sheet can apply elastic forces in opposite directions to the two ends of the male end assembly that are relatively arranged along the preset axial direction; one end of the second spring sheet is connected to the inner bracket, and the other end can apply elastic forces in opposite directions to the two ends of the outer bracket that are relatively arranged along the preset axial direction.

[0014] In one embodiment, the outer bracket is provided with a slide groove extending along a preset axial direction, and the inner bracket is provided with a slider. The outer bracket and the inner bracket can slide together along the preset axial direction through the slider and the slide groove. The slider can stop at both ends of the slide groove along the preset axial direction to limit the relative sliding distance between the outer bracket and the inner bracket.

[0015] Compared with the prior art, the high-voltage distribution box provided in the present application, as can be seen from the above, since the distribution component group and the control circuit board are connected through the male end component and the female end component, the distribution components and the control components are electrically connected. Compared with the wiring harness connection, the connection between the male end component and the female end component not only reduces the installation space required for the electrical connection between the control unit and the distribution unit, but also can play a certain limiting role in the connection between the control unit and the distribution unit, thereby eliminating the need to use additional bolts to strengthen the connection between the control unit and the distribution unit, thereby reducing the difficulty of assembling the high-voltage distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic structural diagram of a high-voltage distribution box according to an embodiment of the present application;

[0018] Figure 2 This is an exploded view of a high-voltage distribution box according to an embodiment of the present application;

[0019] Figure 3 A partial cross-sectional view of a control unit according to an embodiment of the present application;

[0020] Figure 4 A schematic diagram of the assembly structure of a male end component and a female end component according to an embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the partial structure of a high-voltage distribution box according to an embodiment of the present application.

[0022] Reference numerals: 1000, control unit; 2000, power distribution unit; 100, connector; 110, male terminal assembly; 121, outer bracket; 1211, slide groove; 122, inner bracket; 1221, slider; 123, first spring piece; 1231, electrical connection slot; 124, second spring piece; 200, cover; 210, connecting ear; 211, slot; 220, first abutting post; 300, base; 310, snap fastener; 320, second abutment column; 330, connection hole; 400, control circuit board; 500, control component group; 510, pre-charge relay; 520, pre-charge resistor; 600, bottom shell; 610, stud; 700, power distribution component group; 710, on-off relay; 720, current carrier; 730, shunt; 740, main circuit load protection component; 750, branch circuit load protection component. DETAILED DESCRIPTION

[0023] As the proportion of new energy electric vehicles in the market continues to rise, the design requirements for high-voltage distribution boxes, as a key component of the battery pack, are becoming increasingly stringent. The high-voltage distribution box is a highly integrated device that integrates the BMS control module, battery pack power distribution module, high-voltage circuit protection module, and other modules.

[0024] In the prior art, the various components of adjacent modules in the high-voltage distribution box are mainly connected through wiring harnesses. In this way, a large number of wiring harnesses will occupy the installation space inside the high-voltage distribution box, which is not conducive to the miniaturization of the high-voltage distribution box. Moreover, the wiring harnesses cannot be connected and cannot play a limiting role on the various components of the adjacent modules. Therefore, the various components of the adjacent modules need to be limited by additional structures such as bolts, which makes the assembly of the high-voltage distribution box more difficult.

[0025] See also Figure 1-Figure 5 In order to solve the problem that the existing installation method will occupy a large amount of internal space of the high-voltage distribution box and increase the difficulty of assembling the high-voltage distribution box, the present application provides a high-voltage distribution box, which includes a control unit 1000 and a distribution unit 2000.

[0026] The control unit 1000 includes a cover 200, a control circuit board 400, a base 300, a connector 100 and a control component group 500. The control component group 500 is connected to the control circuit board 400. The cover 200 and the base 300 are detachably connected.

[0027] Specifically, in one embodiment, Figure 2 As shown, 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 snapped into the slot 211 , so that the cover 200 can be detachably connected to the base 300 .

[0028] More specifically, if Figure 2 As shown, taking the buckle 310 being set on the base 300 as an example, the buckle 310 protrudes from the outer peripheral side of the base 300, the cover body 200 is connected to a connecting ear 210 extending toward the base 300, and 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 undergoes elastic deformation outward until the buckle 310 is snapped into the slot 211 and the connecting ear 210 returns to its original state.

[0029] However, the present invention is not limited thereto. In other embodiments, the cover 200 and the base 300 may be magnetically connected or screwed, etc., which are not listed here one by one.

[0030] like Figure 3 As shown, a first abutment column 220 is provided on the side of the cover body 200 facing the base 300, and a second abutment column 320 is provided on the side of the base 300 facing the cover body 200. The first abutment column 220 and the second abutment column 320 respectively abut against the two side end surfaces of the control circuit board 400, so that the control circuit board 400 is fixedly clamped between the cover body 200 and the base 300, forming a structure similar to a sandwich.

[0031] By setting the first abutment column 220 and the second abutment column 320 to abut against the two side end surfaces 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, greatly reducing the assembly difficulty of the high-voltage distribution box.

[0032] Specifically, in one embodiment, Figure 3 As shown, the first abutting column 220 and the second abutting column 320 are both conical, and the conical tips of the first abutting column 220 and the second abutting column 320 respectively abut the control circuit board 400. In this way, while ensuring the abutting strength, the contact area between the first abutting column 220, the second abutting column 320 and the control circuit board 400 can be reduced, thereby improving the utilization space of the control circuit board 400.

[0033] It should be noted that the conical tips of the first abutting post 220 and the second abutting post 320 are only smaller in diameter than the conical base. However, the conical tips are not very sharp but relatively blunt to prevent the control circuit board 400 from being punctured.

[0034] However, the present invention is not limited thereto. In other embodiments, the first abutting post 220 and the second abutting post 320 may also be cylindrical, prismatic or other shapes, which are not listed here one by one.

[0035] In one embodiment, if Figure 2 As shown, the control component group 500 includes a pre-charging relay 510 and a pre-charging resistor 520 . The pre-charging relay 510 and the pre-charging resistor 520 are respectively integrated on the control circuit board 400 and are respectively electrically connected to the circuits on the control circuit board 400 .

[0036] Specifically, the pre-charge relay 510 and the pre-charge resistor 520 transmit signals directly to the lines on the control circuit board 400 through signal pins. Compared with the traditional wiring harness switching solution, this arrangement saves costs and improves space utilization.

[0037] Furthermore, in one embodiment, the signal pins of the pre-charge relay 510 (or pre-charge resistor 520) are electrically connected to the control circuit board 400 by welding. This arrangement not only achieves signal transmission but also secures the pre-charge relay 510 (or pre-charge resistor 520). Furthermore, the installation of the pre-charge relay 510 (or pre-charge resistor 520) is no longer limited by the position of the signal pins. Devices of different power levels can be replaced to match the operating conditions and electrical configuration requirements of different vehicle models, thus achieving multi-configuration requirements.

[0038] However, it is not limited thereto. In other embodiments, the signal pin of the pre-charge relay 510 (or the pre-charge resistor 520) and the control circuit board 400 may be snap-connected or crimped, etc., which are not listed here one by one.

[0039] Furthermore, if Figure 2-Figure 5 As shown, the distribution unit 2000 includes a base shell 600 and a distribution component group 700, the distribution component group 700 is connected to the base shell 600, the connector 100 includes a male end assembly 110 and a female end assembly, one of the distribution component group 700 and the control circuit board 400 is electrically connected to the male end assembly 110, and the other is electrically connected to the female end assembly, and the male end assembly 110 is inserted into the female end assembly so that the control component group 500 is electrically connected to the distribution component group 700 through the control circuit board 400, the female end assembly and the male end assembly 110.

[0040] From the above, it can be seen that since the distribution component group 700 and the control circuit board 400 are connected through the male end component 110 and the female end component, the distribution components and the control components are electrically connected. Compared with the wiring harness connection, the connection between the male end component 110 and the female end component not only reduces the installation space required for the electrical connection between the control unit 1000 and the distribution unit 2000, but also can play a certain limiting role in the connection between the control unit 1000 and the distribution unit 2000, thereby eliminating the need to use additional bolts to strengthen the connection between the control unit 1000 and the distribution unit 2000, thereby reducing the difficulty of assembling the high-voltage distribution box.

[0041] It should be noted that the connector 100 is a conductive structure, including but not limited to carbon nanotubes, graphene, conductive polymers, metal elastic materials and other materials, which are not listed here one by one.

[0042] In one embodiment, if Figure 4 As shown, the female end assembly includes an outer bracket 121, an inner bracket 122, a first spring clip 123, and a second spring clip 124. The outer bracket 121 and the inner bracket 122 can slide and limit along a predetermined axial direction. The first spring clip 123 is connected to the inner bracket 122. An electrical connection slot 1231 is provided inside the first spring clip 123. When the male end assembly 110 is inserted into the electrical connection slot 1231, the first spring clip 123 can apply elastic forces in opposite directions to the two opposite ends of the male end assembly 110 along the predetermined axial direction. The second spring clip 124 has one end connected to the inner bracket 122, and the other end can apply elastic forces in opposite directions to the two opposite ends of the outer bracket 121 along the predetermined axial direction.

[0043] Specifically, the outer bracket 121 is frame-shaped, and the inner bracket 122 is also frame-shaped, which can be a quadrilateral frame or other polygonal frames. Of course, the outer bracket 121 and the inner bracket 122 can also be in other shapes such as I-shaped, which are not listed here one by one.

[0044] Furthermore, in one embodiment, Figure 4As shown, the outer bracket 121 is provided with a slide groove 1211 extending along a preset axial direction, and the inner bracket 122 is provided with a slider 1221 corresponding to the slide groove 1211. The outer bracket 121 and the inner bracket 122 can slide and cooperate along the preset axial direction through the slider 1221 and the slide groove 1211, and the slider 1221 can stop at both ends of the slide groove 1211 along the preset axial direction to limit the relative sliding distance between the outer bracket 121 and the inner bracket 122.

[0045] Such an arrangement can significantly improve the sliding stability of the outer bracket 121 and the inner bracket 122 .

[0046] Furthermore, the inner bracket 122 , the first elastic piece 123 , the second elastic piece 124 and the slider 1221 are an integral sheet metal structure.

[0047] In one embodiment, if Figure 2 As shown, the high-voltage distribution box further includes a screw (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 connection hole 330. One end of the screw is threadedly connected to the stud 610, and the other end is stopped at the opening of the connection hole 330 away from the stud 610, so that the bottom shell 600 can be detachably connected to the base 300. Specifically, the head of the screw is stopped at the opening of the connection hole 330.

[0048] Such an arrangement can enhance the connection strength between the control unit 1000 and the power distribution unit 2000 .

[0049] In one embodiment, if Figure 5 As shown, the power distribution component assembly 700 includes an on-off relay 710, a current carrier 720 (including but not limited to copper and aluminum busbars), a shunt 730, a main circuit load protection component 740, and a branch circuit load protection component 750. Furthermore, after pre-assembly, the current carrier 720 and the male terminal assembly 110 are connected to the on-off relay 710 via bolts, and the female terminal assembly is fixed to the control circuit board 400 via pins. The control component assembly 500 can be electrically connected to the on-off relay 710 via the control circuit board 400, the female terminal assembly, the male terminal assembly 110, and the current carrier 720, thereby replacing the high-voltage sampling of the traditional wiring harness.

[0050] It should be noted that the branch circuit load protection component 750 includes but is not limited to a compressor switching power supply, a two-in-one controller (integrating the on-board charger and DC / DC converter into a high-voltage module, this integration method is called a two-in-one controller), a PTC heater fuse, etc., which can be configured and selected according to different electrical architecture requirements.

[0051] Furthermore, the compatible design of the main circuit load protection component 740 can also select and configure devices of corresponding structures according to the working conditions and electrical requirements of different vehicle models.

[0052] Specifically, the function of the on-off relay 710 is to control the on and 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. According to the electrical architecture, it realizes the main circuit on-off control, fast charging on-off control and heating circuit protection, and can be configured according to the requirements of different vehicle models.

[0053] In one embodiment, the power distribution unit 2000 is provided with external interfaces such as a battery negative interface, a battery positive interface, a 281 / 283 opposing interface (the 282 / 284 opposing interface can be used as an extended-range vehicle range extender interface, or it can be flipped 180 degrees as an 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.

[0054] In addition, all external interfaces are arranged in a vertical direction. When the high-voltage distribution box is installed inside the battery pack, it is convenient for operators to use tools to operate the high-voltage distribution box and the outside for connection and maintenance.

[0055] From the above, it can be seen that the high-voltage distribution box of the present invention integrates a configurable electrical architecture, laying the foundation for the universalization of vehicle models. At the same time, the compact device arrangement also realizes a miniaturized design, improving the space utilization of the high-voltage distribution box.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

[0058] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0060] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0061] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0062] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are intended only to describe specific embodiments and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

Claims

1. A high voltage distribution box, characterized in that: The invention comprises a control unit (1000) and a power distribution unit (2000); the control unit (1000) comprises a cover (200), a control circuit board (400), a base (300), a connector (100) 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; and the control circuit board (400) is arranged between the cover (200) and the base (300); The power distribution unit (2000) comprises a bottom shell (600) and a power distribution component group (700), wherein the power distribution component group (700) is mounted on the bottom shell (600), and the plug-in device (100) comprises a male end component (110) and a female end component, wherein one of the power distribution component group (700) and the control circuit board (400) is electrically connected to the male end component (110), and the other is electrically connected to the female end component, and the male end component (110) is inserted into the female end component, so that the control component group (500) can be electrically connected to the power distribution component group (700) via the control circuit board (400) and the plug-in device (100).

2. The high-voltage distribution box according to claim 1, characterized in that: The invention also includes a screw, wherein 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 threadedly connected 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).

3. The high-voltage distribution box according to claim 1, characterized in that: The power distribution component group (700) comprises an on-off relay (710) and a current carrier (720); the current carrier (720) and the male end assembly (110) are connected to the on-off relay (710) via bolts; the female end assembly is fixed to the control circuit board (400) via its own pins; and the control component group (500) can be electrically connected to the on-off relay (710) via the control circuit board (400), the female end assembly, the male end assembly (110), and the current carrier (720).

4. The high-voltage distribution box according to claim 1, characterized in that: One of the cover (200) and the base (300) is provided with a buckle (310), and the other is provided with a slot (211), wherein the buckle (310) can be snapped into the slot (211), so that the cover (200) can be detachably connected to the base (300).

5. The high-voltage distribution box according to claim 1, characterized in that: The cover (200) is provided with a first abutting column (220), and the base (300) is provided with a second abutting column (320). The first abutting column (220) and the second abutting column (320) respectively abut against two side end surfaces of the control circuit board (400), so that the control circuit board (400) is fixedly clamped between the cover (200) and the base (300).

6. The high-voltage distribution box according to claim 5, characterized in that: The first abutting post (220) and the second abutting post (320) are both conical, and the conical tips of the first abutting post (220) and the second abutting post (320) respectively abut against the control circuit board (400).

7. The high-voltage distribution box according to claim 1, characterized in that: The control component group (500) comprises a pre-charging relay (510) and a pre-charging resistor (520); the pre-charging relay (510) and the pre-charging resistor (520) are respectively integrated on the control circuit board (400) and are respectively electrically connected to circuits on the control circuit board (400).

8. The high-voltage distribution box according to claim 7, characterized in that: The signal pin of the pre-charging relay (510) is welded to the control circuit board (400); And / or, the signal pin of the pre-charging resistor (520) and the control circuit board (400) are welded.

9. The high-voltage distribution box according to claim 1, characterized in that: The female end assembly comprises an outer bracket (121), an inner bracket (122), a first elastic piece (123) and a second elastic piece (124); the outer bracket (121) and the inner bracket (122) can be slidably matched along a preset axial direction; The first elastic piece (123) is connected to the inner bracket (122), and an electrical connection slot (1231) is provided on the inner side of the first elastic piece (123). When the male end component (110) is inserted into the electrical connection slot (1231), the first elastic piece (123) can apply elastic forces in opposite directions to the two ends of the male end component (110) that are arranged opposite to each other along a preset axial direction. One end of the second elastic piece (124) is connected to the inner bracket (122), and the other end is capable of applying elastic forces in opposite directions to two oppositely arranged ends of the outer bracket (121) along a preset axial direction.

10. The high-voltage distribution box according to claim 9, characterized in that: The outer bracket (121) is provided with a sliding groove (1211) extending along a preset axial direction, and the inner bracket (122) is provided with a slider (1221). The outer bracket (121) and the inner bracket (122) can slide and cooperate along the preset axial direction through the slider (1221) and the sliding groove (1211), and the slider (1221) can stop at both ends of the sliding groove (1211) along the preset axial direction to limit the relative sliding distance between the outer bracket (121) and the inner bracket (122).

Images