Connectors and high voltage distribution boxes

Abstract

The present application relates to a plug-in device and a high-voltage power distribution box. The plug-in device includes a male end component and a female end component. The female end component includes an outer bracket, an inner bracket, a first spring-pressing part and a second spring-pressing part. The outer bracket and the inner bracket can slide and limit along a preset axial direction. The first spring-pressing part is connected to the inner bracket, and an electrical connection slot is provided inside the first spring-pressing part. When the male end component is inserted into the electrical connection slot, the first spring-pressing part can apply elastic forces in opposite directions to the two ends of the male end component that are relatively arranged along the preset axial direction. The second spring-pressing part is arranged between the inner bracket and the outer bracket, and one end of the second spring-pressing part is connected to one of the inner bracket and the outer bracket, and the other end can apply elastic forces in opposite directions to the two ends of the other that are relatively arranged along the preset axial direction. The plug-in device and the high-voltage power distribution box provided by the present application solve the problem that the fixing parts of the connector are loose and displaced, resulting in plastic deformation of the male or female end of the connector and poor contact of the connector.

Description

Technical Field

[0001] The present application relates to the technical field of device electrical connection structures, and in particular to a plug-in device and a high-voltage distribution box. Background Art

[0002] As the proportion of new energy electric vehicles in the market increases, as an important component of the battery pack, the design requirements for the high-voltage distribution box are also getting higher and higher. The high-voltage distribution box is a highly integrated device that integrates BMS control module, battery pack distribution module, high-voltage circuit protection module and other modules.

[0003] In the prior art, the electrical connection of the high-voltage distribution box usually uses an assembly structure of a connector, that is, the male end of the connector is inserted into the female end to achieve the electrical connection of the connector.

[0004] However, since the vehicle will generate a large amount of vibration during long-term operation, the vibration will cause the fixings that fix the male and female ends of the connector to loosen. At this time, the male and female ends of the connector may undergo a large degree of relative displacement, resulting in plastic deformation of the male or female end of the connector, which in turn causes poor contact of the connector and even affects the driving safety of the vehicle. Summary of the invention

[0005] Based on this, it is necessary to provide a connector and a high-voltage distribution box to solve the problem that the fixings of the connector become loose and displaced due to vehicle vibration, thereby causing plastic deformation of the male or female end of the connector, and further causing poor contact of the connector.

[0006] The connector provided in the present application includes a male end component and a female end component that are pluggable. The female end component includes an outer bracket, an inner bracket, a first spring-pressing portion and a second spring-pressing portion. The outer bracket and the inner bracket can be slidably limited and matched along a preset axial direction; the first spring-pressing portion is connected to the inner bracket, and an electrical connection slot is provided on the inner side of the first spring-pressing portion. When the male end component is inserted into the electrical connection slot, the first spring-pressing portion can apply elastic forces in opposite directions to the two ends of the male end component that are relatively arranged along the preset axial direction; the second spring-pressing portion is arranged between the inner bracket and the outer bracket, and one end of the second spring-pressing portion is connected to one of the inner bracket and the outer bracket, and the other end can apply elastic forces in opposite directions to the two ends of the other bracket that are relatively arranged along the preset axial direction.

[0007] In one embodiment, the elastic coefficient of the second elastic portion is greater than the elastic coefficient of the first elastic portion.

[0008] In one embodiment, the elastic coefficient of the second elastic portion is smaller than the elastic coefficient of the first elastic portion.

[0009] In one embodiment, the first spring-pressing portion includes an independently arranged first section and a second section, the first section and the second section are distributed at two ends of the male end assembly that are relatively arranged along a preset axial direction, the electrical connection slot is arranged between the first section and the second section, the first section and the second section are respectively connected to the inner bracket, the elastic force applied by the first section to the male end assembly causes the male end assembly to have a tendency to move toward a direction close to the second section, and the elastic force applied by the second section to the male end assembly causes the male end assembly to have a tendency to move toward a direction close to the first section.

[0010] In one embodiment, the first section and the second section are both in the shape of spring sheets, and the first section and the second section respectively exert elastic force on the male end assembly through their own bending deformation.

[0011] In one embodiment, the second elastic pressure portion includes an independently arranged third division and a fourth division, and the third division and the fourth division are distributed at two ends of the inner bracket that are relatively arranged along a preset axial direction. The elastic force applied by the third division to the inner bracket causes the inner bracket to have a tendency to move toward a direction close to the fourth division, and the elastic force applied by the fourth division to the inner bracket causes the inner bracket to have a tendency to move toward a direction close to the third division.

[0012] In one embodiment, the third section and the fourth section are both in the shape of spring sheets, and the third section and the fourth section respectively exert elastic force on the inner bracket through their own bending deformation.

[0013] In one embodiment, one of the outer bracket and the inner bracket is provided with a slide groove extending along a preset axial direction, and the other is provided with a slider corresponding to the slide groove. The outer bracket and the inner bracket can slide together along the preset axial direction through the slider and the slide groove, and the slider can stop at both ends of the slide groove along the preset axial direction.

[0014] The present application also provides a high-voltage distribution box, which includes a first fixing part, a second fixing part and a plug-in device of any one of the above embodiments, wherein the male end assembly is fixedly connected to the first fixing part, the outer bracket is fixedly connected to the second fixing part, and the first fixing part is electrically connected to the second fixing part via the male end assembly, the first spring-pressing part, the inner bracket, the second spring-pressing part and the outer bracket in sequence.

[0015] In one of the embodiments, the male end component is provided with a plurality of limiting protrusions, and the first fixing member is provided with a limiting slot corresponding to the limiting protrusions. The limiting protrusions and the limiting slots are arranged in a one-to-one correspondence and fixedly engaged, and the distribution positions of the plurality of limiting protrusions are located at each vertex of the polygon.

[0016] Compared with the prior art, it can be understood that in the connector and high-voltage distribution box provided in the present application, when the first fixing member connecting the male end component and the second fixing member connecting the female end component undergo relative displacement, the male end component and the female end component will also tend to move relative to each other.

[0017] When the relative movement distance of 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 elastic pressing portion and the second elastic pressing portion.

[0018] When the relative movement distance of the first fixing member and the second fixing member is large, the female end assembly can realize a large range of relative movement of the male end assembly and the female end assembly through the relative sliding of the inner bracket and the outer bracket, and due to the existence of the first spring-pressing portion, it can ensure that the male end assembly and the inner bracket can maintain an electrically connected state, and due to the existence of the second spring-pressing portion, it can ensure that the inner bracket and the outer bracket can maintain an electrically connected state, thereby ensuring a stable electrical connection between the first fixing member and the second fixing member and preventing poor contact of the connector.

[0019] In addition, synchronously setting the second spring-pressing part and the first spring-pressing part has the following advantages: the first, second spring-pressing part and the first spring-pressing part can compensate each other to prevent any one of them from being out of contact, thereby improving the fault tolerance rate of the connector; second, the second spring-pressing part and the first spring-pressing part can buffer each other to disperse stress, thereby preventing one of them from expanding or compressing too fast or with too large an amplitude, thereby causing elastic failure of the first spring-pressing part or the second spring-pressing part, thereby improving the service life of the connector; third, when the vehicle is continuously bumped and vibrated during driving, the first fixing part and the second fixing part will also produce reciprocating relative movement. 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 beneficial to the assembly stability of the connector.

[0020] Furthermore, through the sliding cooperation of the first elastic part, the second elastic part, and the inner bracket and the outer bracket, plastic deformation of the male end component or the female end component can be prevented, thereby greatly improving the service life of the plug-in device.

[0021] Furthermore, when the male end assembly and the electrical connection socket cannot be aligned during the assembly process, the male end assembly and the female end assembly can be assembled smoothly through the relative sliding of the inner bracket and the outer bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. 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.

[0023] Figure 1 An exploded view of a high-voltage distribution box according to an embodiment of the present application;

[0024] Figure 2 for Figure 1 A magnified view of Q is shown;

[0025] Figure 3 for Figure 1 The enlarged view at P is shown;

[0026] Figure 4 A schematic diagram of the structure of a female end assembly according to an embodiment of the present application;

[0027] Figure 5 An assembly exploded view of a male end assembly and a first fixing member according to an embodiment of the present application.

[0028] Figure numerals: 1000, first fixing member; 1100, limiting slot; 2000, second fixing member; 2100, limiting card slot; 100, male end assembly; 110, limiting protrusion; 200, female end assembly; 210, outer bracket; 211, slide groove; 220, inner bracket; 221, slider; 230, first spring-pressing part; 231, first subdivision; 232, second subdivision; 233, electrical connection slot; 240, second spring-pressing part; 241, third subdivision; 242, fourth subdivision; 250, limiting card foot. DETAILED DESCRIPTION

[0029] As the proportion of new energy electric vehicles in the market increases, as an important component of the battery pack, the design requirements for the high-voltage distribution box are also getting higher and higher. The high-voltage distribution box is a highly integrated device that integrates BMS control module, battery pack distribution module, high-voltage circuit protection module and other modules.

[0030] In the prior art, the electrical connection of the high-voltage distribution box usually uses an assembly structure of a connector, that is, the male end of the connector is inserted into the female end to achieve the electrical connection of the connector.

[0031] However, since the vehicle will generate a large amount of vibration during long-term operation, the vibration will cause the fixings that fix the male and female ends of the connector to loosen. At this time, the male and female ends of the connector may undergo a large degree of relative displacement, resulting in plastic deformation of the male or female end of the connector, which in turn causes poor contact of the connector and even affects the driving safety of the vehicle.

[0032] In order to solve the problem that vehicle vibration causes the fixing parts of the connector to loosen and move, thereby causing plastic deformation of the male or female end of the connector, and further causing poor contact of the connector, the present application provides a connector device and a high-voltage distribution box.

[0033] See also Figure 1-Figure 5The plug-in device includes a male end assembly 100 and a female end assembly 200 that are plug-in compatible. The female end assembly 200 includes an outer bracket 210, an inner bracket 220, a first spring-pressing portion 230, and a second spring-pressing portion 240. The outer bracket 210 and the inner bracket 220 can slide and fit along a preset axial direction, that is, the outer bracket 210 and the inner bracket 220 can slide and fit within a limited range along the preset axial direction. In addition, the male end assembly 100 is fixedly connected to the first fixing member 1000, the outer bracket 210 is fixedly connected to the second fixing member 2000, and the first fixing member 1000 is electrically connected to the second fixing member 2000 through the male end assembly 100, the first spring-pressing portion 230, the inner bracket 220, the second spring-pressing portion 240, and the outer bracket 210 in sequence.

[0034] It should be noted that the connector 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.

[0035] Specifically, Figure 2 and Figure 4 As shown, the outer bracket 210 is in a frame shape, and the inner bracket 220 is also in a frame shape, which can be a quadrilateral frame or other polygonal frames. Of course, the outer bracket 210 and the inner bracket 220 can also be in other shapes such as an I-shape, which are not listed here one by one.

[0036] In one embodiment, if Figure 2 and Figure 4 As shown, one of the outer bracket 210 and the inner bracket 220 is provided with a slide groove 211 extending along a preset axial direction, and the other is provided with a slider 221 corresponding to the slide groove 211. The outer bracket 210 and the inner bracket 220 can slide and cooperate along the preset axial direction through the slider 221 and the slide groove 211, and the slider 221 can stop at both ends of the slide groove 211 along the preset axial direction to limit the relative sliding distance between the outer bracket 210 and the inner bracket 220.

[0037] Such an arrangement can significantly improve the sliding stability of the outer bracket 210 and the inner bracket 220 .

[0038] However, it is not limited thereto. In another embodiment, the outer bracket 210 and the inner bracket 220 may also be slidably matched by replacing the slide groove 211 with a slide rail to reduce the sliding resistance between the outer bracket 210 and the inner bracket 220 .

[0039] Further, in one embodiment, the slider 221 is connected to the inner bracket 220 as an example, and the slider 221 and the inner bracket 220 are integrally formed. Specifically, the side wall of the inner bracket 220 is cut to form a U-shaped cutting seam, and then the inner bracket 220 at the U-shaped cutting seam is bent toward the direction close to the slide groove 211 of the outer bracket 210 to form a slider 221 protruding from the inner bracket 220, and the slider 221 extends into the slide groove 211. In addition, the width of the slider 221 along the preset axial direction is smaller than the width of the slide groove 211 along the preset axial direction, so that the slider 221 can slide in the slide groove 211 along the preset axial direction.

[0040] However, it is not limited thereto. In other embodiments, the slider 221 may be fixed to the inner bracket 220 in various ways, such as welding or screwing, which are not listed here one by one.

[0041] The embodiment in which the slider 221 is connected to the outer bracket 210 is similar to the embodiment in which the slider 221 is connected to the inner bracket 220 , and will not be described in detail herein.

[0042] like Figure 4 As shown, the first spring-pressing portion 230 is connected to the inner bracket 220, and an electrical connection slot 233 is provided on the inner side of the first spring-pressing portion 230. When the male end component 100 is inserted into the electrical connection slot 233, the first spring-pressing portion 230 can apply elastic forces in opposite directions to the two ends of the male end component 100 that are relatively arranged along a preset axis.

[0043] It should be noted that, in one embodiment, Figure 2 and Figure 4 As shown, the first spring-pressing portion 230 includes two independently arranged parts, which are respectively defined as a first division 231 and a second division 232. The first division 231 and the second division 232 are distributed at two ends of the male end component 100 that are relatively arranged along a preset axial direction. The electrical connection slot 233 is arranged between the first division 231 and the second division 232, and the first division 231 and the second division 232 are respectively connected to the inner bracket 220. The elastic force applied by the first division 231 to the male end component 100 makes the male end component 100 have a tendency to move toward a direction close to the second division 232. Correspondingly, the elastic force applied by the second division 232 to the male end component 100 makes the male end component 100 have a tendency to move toward a direction close to the first division 231, that is, the elastic forces applied by the two are in opposite directions.

[0044] Such a configuration can significantly enhance the linkage effect between the first springing part 230 and the inner bracket 220, so that when the male end component 100 vibrates back and forth relative to the female end component 200, the male end component 100, the first springing part 230 and the inner bracket 220 can form an overall displacement linkage to prevent any one of the male end component 100, the first springing part 230 and the inner bracket 220 from undergoing plastic deformation due to excessive relative displacement.

[0045] However, it is not limited to this. In other embodiments, the first section 231 and the second section 232 may also be integrally arranged. Specifically, the first section 231 and the second section 232 cooperate to form a structure similar to tweezers. The male end assembly 100 achieves elastic crimping of the male end assembly 100 by the first spring pressing section 230 by squeezing and expanding the first section 231 and the second section 232.

[0046] Further, in one embodiment, if Figure 2 and Figure 4 As shown, the first sub-portion 231 and the second sub-portion 232 are both in the shape of spring sheets, and the first sub-portion 231 and the second sub-portion 232 respectively exert elastic force on the male end assembly 100 through their own bending deformation.

[0047] Specifically, one end of the first section 231 and one end of the second section 232 are respectively connected to the inner bracket 220 , and the other end of the first section 231 and the other end of the second section 232 extend toward each other and are crimped to both ends of the male terminal assembly 100 .

[0048] It should be noted that the first section 231, the second section 232 and the inner bracket 220 can be an integrally formed setting or can be welded. The former (integrated forming) is formed by a sheet metal bending process and has better elasticity and firmness, while the latter (welding) is easy to process and helps reduce processing costs.

[0049] However, the present invention is not limited thereto. In other embodiments, the first section 231 and the second section 232 may also be spring-shaped.

[0050] Furthermore, in one embodiment, if Figure 2 and Figure 4 As shown, the end of the first section 231 and the end of the second section 232 are bent in opposite directions respectively, so that the distance between the end of the first section 231 and the end of the second section 232 is greater than the thickness of the male end assembly 100 along the preset axial direction, so as to facilitate the male end assembly 100 to be inserted into the electrical connection slot 233 between the first section 231 and the second section 232.

[0051] The second elastic pressing part 240 is arranged between the inner bracket 220 and the outer bracket 210, and one end of the second elastic pressing part 240 is connected to one of the inner bracket 220 and the outer bracket 210, and the other end can apply elastic forces in opposite directions to the two ends of the other one that are relatively arranged along a preset axis.

[0052] It should be noted that, in one embodiment, Figure 2 and Figure 4 As shown, the second elastic pressing portion 240 includes two independently arranged parts, which are respectively defined as the third division 241 and the fourth division 242. The third division 241 and the fourth division 242 are distributed at two ends of the inner bracket 220 that are relatively arranged along the preset axial direction, and the third division 241 and the fourth division 242 can be respectively connected to the inner bracket 220, or the third division 241 and the fourth division 242 can be respectively connected to the outer bracket 210, or the third division 241 and the fourth division 242 are connected to the inner bracket 220, and the other is connected to the outer bracket 210. The elastic force applied by the third division 241 to the inner bracket 220 makes the inner bracket 220 have a tendency to move toward the direction close to the fourth division 242. Correspondingly, the elastic force applied by the fourth division 242 to the inner bracket 220 makes the inner bracket 220 have a tendency to move toward the direction close to the third division 241, that is, the elastic forces applied by the two are in opposite directions.

[0053] It should be noted that since the outer bracket 210 cannot move, no matter whether the third division 241 and the fourth division 242 are connected to the inner bracket 220 or the outer bracket 210, the elastic force (or reaction force) generated by the third division 241 and the fourth division 242 can be considered to act on the inner bracket 220 to push the inner bracket 220 to move.

[0054] Such a configuration can significantly enhance the linkage effect between the second spring part 240 and the inner bracket 220, so that when the male end component 100 vibrates back and forth relative to the female end component 200, the male end component 100, the first spring part 230, the inner bracket 220 and the second spring part 240 can form an overall displacement linkage to prevent any one of the male end component 100, the second spring part 240, the inner bracket 220 and the second spring part 240 from undergoing plastic deformation due to excessive relative displacement.

[0055] But not limited to this, in other embodiments, the third division 241 and the fourth division 242 can also be integrally arranged, specifically, the third division 241 and the fourth division 242 cooperate to form a structure similar to tweezers, and the inner bracket 220 achieves elastic crimping of the inner bracket 220 by the second spring-pressing portion 240 by squeezing and expanding the third division 241 and the fourth division 242.

[0056] Further, in one embodiment, if Figure 2 and Figure 4 As shown, the third sub-portion 241 and the fourth sub-portion 242 are both in the shape of spring sheets, and the third sub-portion 241 and the fourth sub-portion 242 respectively exert elastic force on the inner bracket 220 through their own bending deformation.

[0057] Specifically, one end of the third section 241 and one end of the fourth section 242 are respectively connected to the outer bracket 210 , and the other end of the third section 241 and the other end of the fourth section 242 extend toward each other and are crimped to both ends of the inner bracket 220 .

[0058] Alternatively, one end of the third section 241 and one end of the fourth section 242 are respectively connected to the inner bracket 220 , and the other end of the third section 241 and the other end of the fourth section 242 extend in directions away from each other and are crimped to both ends of the outer bracket 210 .

[0059] Alternatively, one of the third section 241 and the fourth section 242 is connected to the outer bracket 210 , and the other of the third section 241 and the fourth section 242 extends in the same direction.

[0060] It should be noted that the third section 241, the fourth section 242 and the inner bracket 220 (or the outer bracket 210) can be an integrally formed setting or can be welded. The former (integrated forming) is formed by a sheet metal bending process and has better elasticity and firmness, while the latter (welding) is easy to process and helps reduce processing costs.

[0061] But not limited thereto, in other embodiments, the third section 241 and the fourth section 242 may also be spring-shaped.

[0062] It is understandable that when the first fixing member 1000 connected to the male end component 100 and the second fixing member 2000 connected to the female end component 200 are relatively displaced, the male end component 100 and the female end component 200 will also tend to move relative to each other.

[0063] When the relative movement distance of the first fixing member 1000 and the second fixing member 2000 is small, the female end component 200 can cooperate with the relative movement of the male end component 100 and the female end component 200 through slight elastic deformation of one or both of the first spring portion 230 and the second spring portion 240.

[0064] When the relative movement distance of the first fixing member 1000 and the second fixing member 2000 is large, the female end component 200 can realize a large range of relative movement of the male end component 100 and the female end component 200 through the relative sliding of the inner bracket 220 and the outer bracket 210, and due to the existence of the first spring-pressing portion 230, it can ensure that the male end component 100 and the inner bracket 220 can maintain an electrically connected state, and due to the existence of the second spring-pressing portion 240, it can ensure that the inner bracket 220 and the outer bracket 210 can maintain an electrically connected state, thereby ensuring a stable electrical connection between the first fixing member 1000 and the second fixing member 2000 and preventing poor contact of the connector.

[0065] In addition, the synchronous arrangement of the second spring-pressing part 240 and the first spring-pressing part 230 has the following advantages: the first, second spring-pressing part 240 and the first spring-pressing part 230 can compensate each other to prevent any one of them from being out of contact, thereby improving the fault tolerance rate of the use of the plug-in device; second, the second spring-pressing part 240 and the first spring-pressing part 230 can buffer each other to disperse stress, thereby preventing one of them from expanding or compressing too fast or with too large an amplitude, thereby causing the elastic failure of the first spring-pressing part 230 or the second spring-pressing part 240, thereby improving the service life of the plug-in device; third, when the vehicle is continuously bumped and vibrated during driving, the first fixing part 1000 and the second fixing part 2000 will also produce reciprocating relative movement. At this time, the inner bracket 220 can drive the male end component 100 to form a reciprocating elastic oscillation structure relative to the outer bracket 210, which can absorb vehicle vibration to the greatest extent and is conducive to the assembly stability of the plug-in device.

[0066] Furthermore, through the sliding cooperation of the first springing part 230, the second springing part 240, the inner bracket 220 and the outer bracket 210, the male end component 100 or the female end component 200 can be prevented from plastic deformation, which greatly improves the service life of the connector.

[0067] Furthermore, when the male end assembly 100 and the electrical connection socket 233 cannot be aligned during the assembly process, the male end assembly 100 and the female end assembly 200 can be assembled smoothly through the relative sliding of the inner bracket 220 and the outer bracket 210.

[0068] In one embodiment, the elastic coefficient of the second elastic portion 240 is greater than the elastic coefficient of the first elastic portion 230 .

[0069] In this way, when the relative movement distance between the first fixing member 1000 and the second fixing member 2000 is small, the female end component 200 can cooperate with the relative movement of the male end component 100 and the female end component 200 through slight elastic deformation of the first spring-pressing portion 230. At this time, the inner bracket 220 and the outer bracket 210 will hardly move relative to each other, and the deformation of the second spring-pressing portion 240 is also small.

[0070] When the relative movement distance between the first fixing member 1000 and the second fixing member 2000 is large, the female end assembly 200 can drive the overall sliding of the second spring pressing part 240 through the inner bracket 220 and the outer bracket 210 to achieve a large range of relative movement between the male end assembly 100 and the female end assembly 200.

[0071] That is, such an arrangement is conducive to forming a two-stage moving mechanism that responds sequentially, the first stage being the deformation of the first springing portion 230 , and the second stage being the deformation of the second springing portion 240 .

[0072] Furthermore, in one embodiment, the elastic stroke of the second elastic portion 240 is greater than the elastic stroke of the first elastic portion 230 , so that the second elastic portion 240 can absorb more deformation force.

[0073] In another embodiment, the elastic coefficient of the second elastic portion 240 is smaller than the elastic coefficient of the first elastic portion 230 .

[0074] Obviously, at this time, the deformation priority of the second pressing portion 240 is greater than the deformation priority of the first pressing portion 230 .

[0075] But it is not limited thereto. In other embodiments, the elastic coefficient of the second elastic portion 240 is equal to the elastic coefficient of the first elastic portion 230 .

[0076] Such a configuration is beneficial to evenly distribute the stresses exerted on the first elastic portion 230 and the second elastic portion 240 .

[0077] Furthermore, in one embodiment, the elastic stroke of the first elastic portion 230 is greater than the elastic stroke of the second elastic portion 240 , so that the first elastic portion 230 can absorb more deformation force.

[0078] In one embodiment, if Figure 5 As shown, the male end assembly 100 is provided with a plurality of limiting protrusions 110, and the first fixing member 1000 is provided with limiting slots 1100 corresponding to the limiting protrusions 110, the limiting protrusions 110 and the limiting slots 1100 are arranged one by one and fixedly snap-fitted, and the distribution positions of the plurality of limiting protrusions 110 are located at each vertex of the polygon.

[0079] For example, four limiting protrusions 110 are distributed at four vertices of a quadrilateral, three limiting protrusions 110 are distributed at three vertices of a triangle, etc., which are not listed here one by one.

[0080] Such arrangement, on the one hand, can ensure that the installation positions of the male end component 100 and the first fixing member 1000 are accurate. On the other hand, the distribution positions of the multiple limit protrusions 110 are not on the same straight line, which can prevent the tightening torque from being unable to drive the male end component 100 to rotate relative to the first fixing member 100 when the fastening bolts are tightening the male end component 100, thereby ensuring that the male end component 100 can be smoothly inserted into the electrical connection slot 233.

[0081] In one embodiment, if Figure 2-Figure 4 As shown, the outer bracket 210 of the female end assembly 200 is provided with a plurality of limit pins 250, and the second fixing member 2000 is provided with a limit slot 2100 corresponding to the limit pins 250, the limit pins 250 and the limit slots 2100 are arranged one by one and fixedly engaged, and the distribution positions of the plurality of limit pins 250 are located at each vertex of the polygon.

[0082] For example, four limiting pins 250 are distributed at four vertices of a quadrilateral, three limiting pins 250 are distributed at three vertices of a triangle, etc., which are not listed here one by one.

[0083] Such arrangement, on the one hand, can ensure that the installation positions of the female end component 200 and the second fixing member 2000 are accurate. On the other hand, the distribution positions of the multiple limit pins 250 are not on the same straight line, which can prevent the female end component 200 from being rotated relative to the second fixing member 2000 by the tightening bolts when the tightening torque is applied to the female end component 200, thereby ensuring that the male end component 100 can be smoothly inserted into the electrical connection slot 233 on the female end component 200.

[0084] See also Figure 1-Figure 5 The present application also provides a high-voltage distribution box, which includes a first fixing member 1000, a second fixing member 2000 and the plug-in device described in any one of the above embodiments, the male end component 100 is fixedly connected to the first fixing member 1000, the outer bracket 210 is fixedly connected to the second fixing member 2000, and the first fixing member 1000 is electrically connected to the second fixing member 2000 through the male end component 100, the first spring-pressing part 230, the inner bracket 220, the second spring-pressing part 240 and the outer bracket 210 in sequence.

[0085] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0086] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

[0087] 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 referred device or element 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.

[0088] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0089] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0090] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature 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. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0091] 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 a central 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 a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0092] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

Claims

1. A plug-in device, characterized in that: The invention comprises a male end assembly (100) and a female end assembly (200) which are plug-matched, wherein the female end assembly (200) comprises an outer bracket (210), an inner bracket (220), a first spring-pressing portion (230) and a second spring-pressing portion (240), and the outer bracket (210) and the inner bracket (220) can be slidably matched along a preset axial direction; The first spring-pressing portion (230) is connected to the inner bracket (220), and an electrical connection slot (233) is provided inside the first spring-pressing portion (230). When the male end component (100) is inserted into the electrical connection slot (233), the first spring-pressing portion (230) can apply elastic forces in opposite directions to two ends of the male end component (100) that are arranged opposite to each other along a preset axial direction. The second elastic pressing portion (240) is arranged between the inner bracket (220) and the outer bracket (210), and one end of the second elastic pressing portion (240) is connected to one of the inner bracket (220) and the outer bracket (210), and the other end is capable of applying elastic forces in opposite directions to two ends of the other bracket that are arranged oppositely along a preset axial direction; The second elastic pressure portion (240) comprises a third sub-portion (241) and a fourth sub-portion (242) which are independently arranged. The third sub-portion (241) and the fourth sub-portion (242) are distributed at two ends of the inner bracket (220) which are arranged opposite to each other along a preset axial direction. The elastic force exerted by the third sub-portion (241) on the inner bracket (220) causes the inner bracket (220) to have a tendency to move in a direction close to the fourth sub-portion (242). The elastic force exerted by the fourth sub-portion (242) on the inner bracket (220) causes the inner bracket (220) to have a tendency to move in a direction close to the third sub-portion (241).

2. The connector according to claim 1, characterized in that: The elastic coefficient of the second elastic portion (240) is greater than the elastic coefficient of the first elastic portion (230).

3. The connector according to claim 1, characterized in that: The elastic coefficient of the second elastic portion (240) is smaller than the elastic coefficient of the first elastic portion (230).

4. The connector according to claim 1, characterized in that: The first elastic pressure portion (230) comprises a first sub-portion (231) and a second sub-portion (232) which are independently arranged; the first sub-portion (231) and the second sub-portion (232) are distributed at two ends of the male end assembly (100) which are arranged opposite to each other along a preset axial direction; the electrical connection slot (233) is arranged between the first sub-portion (231) and the second sub-portion (232); the first sub-portion (231) and the second sub-portion (232) are respectively connected to the inner bracket (220); the elastic force applied by the first sub-portion (231) to the male end assembly (100) causes the male end assembly (100) to have a tendency to move in a direction close to the second sub-portion (232); and the elastic force applied by the second sub-portion (232) to the male end assembly (100) causes the male end assembly (100) to have a tendency to move in a direction close to the first sub-portion (231).

5. The connector according to claim 4, characterized in that: The first sub-portion (231) and the second sub-portion (232) are both in the shape of spring sheets, and the first sub-portion (231) and the second sub-portion (232) respectively exert elastic force on the male end assembly (100) through their own bending deformation.

6. The connector according to claim 1, characterized in that: The third sub-portion (241) and the fourth sub-portion (242) are both in the shape of spring sheets, and the third sub-portion (241) and the fourth sub-portion (242) respectively exert elastic force on the inner bracket (220) through their own bending deformation.

7. The connector according to claim 1, characterized in that: One of the outer bracket (210) and the inner bracket (220) is provided with a slide groove (211) extending along a preset axial direction, and the other is provided with a slider (221) corresponding to the slide groove (211); the outer bracket (210) and the inner bracket (220) can slide and cooperate along the preset axial direction through the slider (221) and the slide groove (211), and the slider (221) can be stopped at both ends of the slide groove (211) along the preset axial direction.

8. A high voltage distribution box, characterized in that: The invention comprises a first fixing member (1000), a second fixing member (2000) and a plug-in device according to any one of claims 1 to 7, wherein the male end assembly (100) is fixedly connected to the first fixing member (1000), the outer bracket (210) is fixedly connected to the second fixing member (2000), and the first fixing member (1000) is electrically connected to the second fixing member (2000) via the male end assembly (100), the first spring-pressing portion (230), the inner bracket (220), the second spring-pressing portion (240) and the outer bracket (210) in sequence.

9. The high voltage distribution box according to claim 8, characterized in that: The male end assembly (100) is provided with a plurality of limiting protrusions (110), and the first fixing member (1000) is provided with limiting slots (1100) corresponding to the limiting protrusions (110). The limiting protrusions (110) and the limiting slots (1100) are arranged in a one-to-one correspondence and fixedly engaged with each other, and the distribution positions of the plurality of limiting protrusions (110) are located at each vertex of the polygon.

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