Quick-change connector, cooling system and electric equipment

Abstract

The utility model relates to the technical field of power batteries, in particular to a quick-change connector, a cooling system and electric equipment.The quick-change connector comprises a base body, a sleeve and an elastic piece, the base body comprises a containing cavity sunken from a first surface and a first through hole penetrating through the base body, the containing cavity is communicated with the first through hole, the sleeve comprises a hollow cylinder part, and the elastic piece is arranged on the sleeve part. The cylinder part is arranged in the first through hole, a flange is arranged at one end of the cylinder part, a bending part is arranged at the other end of the cylinder part, the cylinder part is sleeved with the elastic piece, a first containing cavity is formed between the bending part and the cylinder part, the first end of the elastic piece is contained in the first containing cavity, the second end of the elastic piece is contained in the containing cavity, and the flange or the bending part abuts against the quick-change connector installation frame. A part of the sleeve is contained in the containing cavity and can float in the containing cavity. The two ends of the sleeve are both provided with components capable of being installed on the quick-change connector installation frame, the quick-change connector installation frame and the quick-change connector can be installed and fixed from the two sides, different whole vehicle platforms and vehicle types are adapted, the compatibility of battery replacement parts is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, and specifically provides a quick-change joint, a cooling system and an electrical equipment. Background Art

[0002] With the popularization and promotion of new energy vehicles, the charging and discharging performance, endurance ability, etc. of new energy vehicles have increasingly attracted people's attention and emphasis. Quick-change joints are widely used in the cooling pipelines of new energy vehicles. Different vehicle platforms and models have differences in the battery swapping structure, which requires swapping parts with floating mechanisms to adapt to different vehicle platforms and models. However, due to different space layouts and usage scenarios of different models, the bracket designs for installing the battery swapping floating mechanisms often vary greatly, and special designs need to be made for the floating mechanisms to enable them to have different installation methods, so as to adapt to different models and reduce the design and production costs.

[0003] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Utility Model

[0004] The utility model aims to solve the above technical problems and provides a new quick-change joint that can improve the compatibility of swapping parts.

[0005] The utility model provides a quick-change joint, including:

[0006] A base body, the base body includes a receiving cavity recessed from a first surface and a first through hole penetrating the base body, and the receiving cavity is communicated with the first through hole;

[0007] A sleeve, the sleeve includes a hollow cylindrical portion, the cylindrical portion is arranged in the first through hole, one end of the cylindrical portion is provided with a flange, and the other end is provided with a bent portion;

[0008] An elastic member, the elastic member is sleeved outside the cylindrical portion;

[0009] Wherein, a first accommodating cavity is provided between the bent portion and the cylindrical portion, a first end of the elastic member is received in the first accommodating cavity, a second end of the elastic member is received in the receiving cavity, the flange or the bent portion abuts against a quick-change joint mounting bracket, and a part of the sleeve is received in the receiving cavity and can float in the receiving cavity.

[0010] In the case of adopting the above technical solution, one end of the elastic member of the utility model is accommodated in the first accommodating chamber and the other end is accommodated in the accommodating chamber, which can realize the up and down floating of the quick-change joint when it is abutted. At least a part of the sleeve is accommodated in the accommodating chamber and can float in the accommodating chamber, so that when the quick-change joint floats up and down, the sleeve is limited to float in the accommodating chamber and will not escape from the accommodating chamber, and will escape from the floating track, thereby causing damage or failure of the quick-change joint. A flange is provided at one end of the barrel of the quick-change joint, and a bending portion is provided at the other end. One of the flange and the bending portion is abutted against the quick-change joint mounting frame. Both ends of the sleeve are provided with components that can abut against the quick-change joint mounting frame, that is, the quick-change joint mounting frame can abut against the flange, or can abut against the bending portion, so that the quick-change joint mounting frame can be installed and fixed with the quick-change joint from both sides, and different installation methods are adopted to adapt to different vehicle platforms and models, get rid of the limitations of spatial layout and usage scenarios, improve the compatibility of battery replacement parts, and thus reduce design and production costs.

[0011] In the preferred technical solution of the above quick-change connector, the bending portion includes a first folding portion and a second folding portion, the first folding portion, the second folding portion and the barrel portion are arranged to form the first accommodating cavity, and the elastic member abuts against the first folding portion.

[0012] When the above technical solution is adopted, the elastic part is accommodated in the first accommodating cavity and abuts against the first folding portion. When the quick-change connector is compressed by external force, the first folding portion can abut against the elastic part, so that the elastic part floats up and down in the accommodating cavity, thereby realizing the installation of the quick-change connector. At the same time, one end of the elastic part is restricted in the first accommodating cavity. When it is compressed by external force, it will not shake, which will cause the elastic part to not be compressed into place.

[0013] In the preferred technical solution of the above-mentioned quick-change connector, a blocking portion located outside the barrel portion is provided in the accommodating cavity, the elastic member is sleeved on the outside of the blocking portion, a second accommodating cavity is provided between the blocking portion and the inner wall of the accommodating cavity, and the second end of the elastic member is accommodated in the second accommodating cavity and abuts against the bottom wall of the second accommodating cavity.

[0014] In the case of adopting the above technical solution, the blocking part is arranged on the outside of the cylinder, which not only provides a guiding role when the cylinder is installed, but also plays a good stabilizing role to prevent the cylinder from shaking in the receiving cavity. The elastic member is sleeved on the outside of the blocking part and abuts against the bottom wall of the second receiving cavity. On the one hand, one end of the elastic member can be fixed. On the other hand, when the elastic member is squeezed by external force, the movable space of the elastic member is limited. When the elastic member is compressed by external force, the abutting end will not shake, which will lead to the situation that the elastic member is not compressed into place.

[0015] In the preferred technical solution of the above quick-change connector, the base includes a convex portion extending from the second surface, the convex portion corresponds to the setting position of the accommodating cavity and the convex portion can abut against the flange.

[0016] When the above technical solution is adopted, the setting of the convex portion can increase the thickness of the base at the abutment point, thereby increasing the depth of the accommodating cavity in the base, leaving more room for the sleeve and the elastic member to be compressed, and increasing the floating amount in the up and down directions.

[0017] In the preferred technical solution of the above quick-change connector, the convex portion is arranged corresponding to the position of the first through hole, the first through hole is located at the corner of the base body and the number of the first through holes is four.

[0018] When the above technical solution is adopted, the convex portion corresponds to the setting position of the first through hole, which is convenient for the installation of the sleeve and can increase the floating amount in the up and down direction. The first through hole is located at the corner of the base body and the number of the first through holes is four. The first through holes and the sleeve are arranged at the four corners, which can increase the stability and firmness of the quick-change connector when plugged in.

[0019] In the preferred technical solution of the above quick-change connector, the end of the second folded portion is located in the receiving cavity and the depth of the receiving cavity is greater than the height of the second folded portion.

[0020] When the above technical solution is adopted, when the elastic part is in the telescopic state, the end of the second folded part is located in the receiving cavity. After the quick-change connector is compressed and rebounds, the second folded part will not separate from the receiving cavity, that is, the sleeve will not separate from the receiving cavity, thereby increasing the stability and reliability during installation.

[0021] In a second aspect, the utility model provides a cooling system, comprising the quick-change connector described in the first aspect.

[0022] In a third aspect, the utility model provides an electrical device, including the cooling system described in the second aspect, wherein the electrical device includes a quick-change joint mounting bracket and a mounting bolt, wherein the mounting bolt passes through the second through hole of the sleeve and is connected to the quick-change joint mounting bracket.

[0023] When the above technical solution is adopted, the quick-change joint is installed on the quick-change joint mounting frame by means of mounting bolts, which is simple to install and easy to operate.

[0024] In the preferred technical solution of the above quick-change connector, the quick-change connector mounting frame includes a main body and an abutment portion protruding from the main body to one side, and the abutment portion abuts against one of the flange and the bending portion.

[0025] In the case of adopting the above technical solution, the abutting portion abuts against one of the flange and the bent portion, that is, the abutting portion can be installed above the quick-release joint or below the quick-release joint, enabling the quick-release joint mounting bracket to be installed and fixed to the quick-release joint from both the upper and lower ends. By adopting different installation methods, it can be adapted to different vehicle platforms and models, getting rid of the limitations of spatial layout and usage scenarios, improving the compatibility of battery swapping parts, and thus reducing the design and production costs.

[0026] In the preferred technical solution of the above quick-release joint, the mounting bolt includes a head and a rod portion. The head abuts against the other one of the flange and the bent portion. The abutting portion is provided with a mounting hole, and the rod portion is cooperatively connected with the mounting hole.

[0027] In the case of adopting the above technical solution, the abutting portion abuts against one of the flange and the bent portion, and the head abuts against the other one of the flange and the bent portion. The installation limit in the up and down direction is realized through the abutting portion and the head. At the same time, the positions of the abutting portion and the head can also be interchanged, enabling the quick-release joint mounting bracket to be installed and fixed to the quick-release joint from both the upper and lower ends, which can be adapted to different vehicle platforms and models, improve the compatibility of battery swapping parts, and thus reduce costs. Description of the Drawings

[0028] The following describes the preferred embodiments of the present invention with reference to the drawings. In the drawings:

[0029] Figure 1 is an exploded view of the quick-release joint of the present invention;

[0030] Figure 2 is a structural schematic diagram of the sleeve of the present invention;

[0031] Figure 3 is an exploded view of the upper installation of the quick-release joint mounting bracket of the present invention.

[0032] Figure 4 is a cross-sectional view of the upper installation of the quick-release joint mounting bracket of the present invention.

[0033] Figure 5 is Figure 4 a partial enlarged view of part A in

[0034] Figure 6 is an exploded view of the lower installation of the quick-release joint mounting bracket of the present invention.

[0035] Figure 7 is a cross-sectional view of the lower installation of the quick-release joint mounting bracket of the present invention.

[0036] Figure 8 is Figure 7 a partial enlarged view of part B in

[0037] Reference Signs:

[0038] 1. Substrate; 10. First surface; 11. Second surface; 12. Receiving cavity; 13. First through hole; 14. Convex part; 15. Blocking part; 16. Second receiving cavity; 17. Bottom wall;

[0039] 2. Sleeve; 20. Cylindrical part; 21. First folding part; 22. Second folding part; 23. First receiving cavity; 24. Flange; 25. Second through hole;

[0040] 3. Elastic member.

[0041] 4. Quick - change joint mounting bracket; 40. Main body part; 41. Abutting part; 42. Mounting hole; 4’. Quick - change joint mounting bracket; 40’. Main body part; 41’. Abutting part; 42’. Mounting hole;

[0042] 5. Mounting bolt; 50. Shank part; 51. Head; 5’. Mounting bolt; 50’. Shank part; 51’. Head; Detailed implementation manners

[0043] The preferred implementation manners of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model. For example, although the battery pack of the present utility model is described by taking the blade - type battery pack as an example in the specification, however, the technical solution of the present utility model is not limited thereto. Those skilled in the art can apply the technical solution of the present utility model to other types of battery pack structures according to needs, such as cylindrical battery packs, etc. Such a change in the application object does not deviate from the principle and scope of the present utility model.

[0044] It should be noted that in the description of the present utility model, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connection", "setting", and "installation" 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, a direct connection, or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] like Figures 1 to 2 , Figures 4 to 5 , Figures 7 to 8 As shown, in the first aspect, the quick-change connector of the utility model includes a base 1, a sleeve 2 and an elastic member 3. The base 1 includes a receiving cavity 12 recessed from the first surface 10 and a first through hole 13 penetrating the base 1. The receiving cavity 12 is connected to the first through hole 13. The sleeve 2 includes a hollow barrel 20. The barrel 20 is arranged in the first through hole 13. A flange 24 is provided at one end of the barrel 20, and a bending portion is provided at the other end. The elastic member 3 is sleeved outside the barrel 20, and a first receiving cavity 23 is provided between the bending portion and the barrel 20. The first end of the elastic member 3 is received in the first receiving cavity 23, and the second end of the elastic member 3 is received in the receiving cavity 12. The flange 24 or the bending portion is in contact with the quick-change connector mounting frame 4, 4'. A part of the sleeve 2 is received in the receiving cavity 12 and can float in the receiving cavity 12.

[0047] The elastic member 3 of the utility model is accommodated in the accommodating chamber 12 and the first accommodating chamber 23, and can realize the up and down floating of the quick-change joint when it is abutted. The bent portion is accommodated in the accommodating chamber 12 and the bent portion floats in the accommodating chamber 12, so that when the quick-change joint floats up and down, the sleeve 2 is limited to float in the accommodating chamber 12 and will not separate from the accommodating chamber 12, and will not separate from the floating track, thereby causing damage or failure of the quick-change joint. A flange 24 is provided at one end of the barrel 20 of the quick-change connector, and a bending portion is provided at the other end. One of the flange 24 and the bending portion is in contact with the quick-change connector mounting bracket 4, 4'. Both ends of the sleeve 2 are provided with components that can be in contact with the quick-change connector mounting bracket 4, 4', that is, the quick-change connector mounting bracket 4, 4' can be in contact with the flange 24, or can be in contact with the bending portion, so that the quick-change connector mounting bracket 4, 4' can be installed and fixed to the quick-change connector from both sides, and different installation methods are adopted to adapt to different vehicle platforms and models, breaking away from the limitations of spatial layout and usage scenarios, improving the compatibility of battery replacement parts, and thereby reducing design and production costs.

[0048] like Figure 4 and Figure 5As shown, the bending portion includes a first folding portion 21 and a second folding portion 22. The first folding portion 21, the second folding portion 22 and the barrel portion 20 are arranged to form a first accommodating cavity 23, and the elastic member 3 abuts against the first folding portion 21. The first end of the elastic member 3 is accommodated in the first accommodating cavity 23 and abuts against the first folding portion 21. When the quick-change connector is compressed by an external force, the first folding portion 21 can abut against the elastic member 3, so that the elastic member 3 floats up and down in the accommodating cavity 12, thereby realizing the installation of the quick-change connector. At the same time, the first end of the elastic member 3 is restricted in the first accommodating cavity 23. When compressed by an external force, it will not shake, thereby causing the elastic member 3 to not be compressed into place. The end of the second folding portion 22 is located in the accommodating cavity 12 and the depth of the accommodating cavity 12 is greater than the height of the second folding portion 22. When the elastic member 3 is in a compressed or uncompressed state, the second folded portion 22 is located in the receiving cavity 12. After the quick-change connector is compressed and rebounds, the second folded portion 22 will not separate from the receiving cavity, that is, the sleeve 2 will not separate from the receiving cavity 12, thereby increasing stability and reliability during installation.

[0049] like Figure 4 and Figure 5 As shown, the receiving chamber 12 is provided with a blocking portion 15 located outside the barrel 20, and the elastic member 3 is sleeved on the outside of the blocking portion 15, which not only provides a guiding effect when the barrel 20 is installed, but also plays a good stabilizing role to prevent the barrel 20 from shaking in the receiving chamber 12. A second receiving chamber 16 is provided between the blocking portion 15 and the inner wall of the receiving chamber 12, and the second end of the elastic member 3 is received in the second receiving chamber 16 and abuts against the bottom wall 17 of the second receiving chamber 16. The elastic member 3 is sleeved on the outside of the blocking portion 15 and abuts against the bottom wall 17 of the second receiving chamber 16. On the one hand, the second end of the elastic member 3 can be fixed, and on the other hand, when the elastic member 3 is squeezed by an external force, the activity space of the elastic member 3 is limited. When the elastic member 3 is compressed by an external force, the abutting end of the elastic member 3 will not shake, which leads to the situation that the elastic member 3 is not compressed in place. In the embodiment of the utility model, the elastic member 3 is a spring. Of course, the elastic member 3 can also be other elastic elements as long as it can achieve telescopic effect.

[0050] The base body 1 includes a convex portion 14 protruding downward from the second surface 11. The convex portion 14 corresponds to the setting position of the receiving cavity 12 and the convex portion 14 can abut against the flange 24. The setting of the convex portion 14 can increase the thickness of the base body 1 at the abutting position, thereby increasing the depth of the receiving cavity 12 in the base body 1, leaving a larger moving space for the compression of the sleeve 2 and the elastic member 3, and increasing the floating amount in the up and down directions. The convex portion 14 corresponds to the setting position of the first through hole 13, which is convenient for the installation of the sleeve 2 and can increase the floating amount in the up and down directions. The first through hole 13 is located at the corner of the base body 1 and the number of the first through holes 13 is four. In the embodiment of the present utility model, the base body 1 is generally plate-shaped and has four corners. The first through hole 13 and the sleeve 2 are arranged at the four corners, which can increase the stability and firmness of the quick-change joint during insertion.

[0051] In a second aspect, the cooling system of the present utility model includes the quick-change joint of the first aspect.

[0052] As Figures 1 to 8 shown, in a third aspect, the electrical equipment of the present utility model includes the cooling system of the second aspect. The electrical equipment includes quick-change joint mounting brackets 4, 4' and mounting bolts 5, 5'. The mounting bolts 5, 5' pass through the second through holes 25 of the sleeve 2 and are connected to the quick-change joint mounting brackets 4, 4'. The quick-change joint is mounted on the quick-change joint mounting brackets 4, 4' through the mounting bolts 5, 5', and the installation is simple and the operation is convenient.

[0053] The quick-change joint mounting brackets 4, 4' include main body portions 40, 40' and abutting portions 41, 41' protruding from the main body portions 40, 40' to one side. The abutting portions 41, 41' abut against one of the flange 24 and the bent portion, that is, the abutting portions 41, 41' can be mounted above or below the quick-change joint, so that the quick-change joint mounting brackets 4, 4' can be mounted and fixed to the quick-change joint from both the upper and lower ends. By adopting different installation methods, different vehicle platforms and vehicle models can be adapted, getting rid of the limitations of the spatial layout and usage scenarios, improving the compatibility of the battery swapping parts, and thus reducing the design and production costs.

[0054] The mounting bolts 5 and 5' include heads 51 and 51' and rod portions 50 and 50'. The heads 51 and 51' abut against the flange 24 and the other of the bent portions. Mounting holes 42 and 42' are provided in the abutting portions 41 and 41'. The rod portions 50 and 50' are cooperatively connected with the mounting holes 42 and 42'. One of the abutting portions 41 and 41' abuts against the flange 24 or the bent portion, and the heads 51 and 51' abut against the other of the flange 24 and the bent portion. Mounting limit in the up and down direction is achieved through the abutting portions 41 and 41' and the heads 51 and 51'. At the same time, the positions of the abutting portions 41 and 41' and the heads 51 and 51' can also be interchanged, so that the quick-change joint mounting brackets 4 and 4' can be mounted and fixed to the quick-change joint from both the upper and lower ends, which can be adapted to different vehicle platforms and models, improve the compatibility of the battery swapping parts, and thus reduce costs.

[0055] As Figures 3 to 5 shown, the following is an embodiment of mounting the quick-change joint mounting bracket 4 of the present utility model from above, that is, the quick-change joint is located below the quick-change joint mounting bracket 4. The mounting bolt 5 passes through the first through hole 13 from bottom to top and is locked and fixedly connected to the quick-change joint mounting bracket 4, realizing the installation of the quick-change joint from bottom to top. At this time, the quick-change joint mounting bracket 4 abuts against the second bent portion 22. Of course, in this embodiment, it can be that the main body portion 40 of the quick-change joint mounting bracket 4 directly abuts against the second bent portion 22, and the rod portion 50 of the mounting bolt 5 is locked and fixedly connected to the main body portion 40, or it can be that the abutting portion 41 protruding from the main body portion 40 to one side abuts against the second bent portion 22, and the rod portion 50 of the mounting bolt 5 is locked and fixedly connected to the mounting hole 42 of the abutting portion 41. The head 51 of the mounting bolt 5 abuts against the flange 24. In this way, in the Z direction, that is, the installation direction, the head 51 abuts against the flange 24 of the sleeve 2, and the main body portion 40 or the abutting portion 41 abuts against the second bent portion 22 of the sleeve 2, realizing the fixation and limit of the sleeve 2 in the Z direction. When an external force is applied during the installation of the quick-change joint, at this time, because the sleeve 2 is fixed in the Z direction, the base body 1 moves up and down relative to the sleeve 2, realizing the floating of the sleeve 2 in the receiving cavity 12, and thus the installation positions of different vehicle models and platforms can be adjusted, getting rid of the limitations of the spatial layout and usage scenarios.

[0056] As Figures 6 to 8As shown, this is an embodiment of the quick-change joint mounting bracket 4' of the present utility model being mounted from below, that is, the quick-change joint is located above the quick-change joint mounting bracket 4'. The mounting bolt 5' passes through the first through-hole 13 from top to bottom and is locked and fixedly connected to the quick-change joint mounting bracket 4' to achieve the installation of the quick-change joint from top to bottom. At this time, the quick-change joint mounting bracket 4' abuts against the flange 24. Of course, in this embodiment, it can be that the main body portion 40' of the quick-change joint mounting bracket 4' directly abuts against the flange 24, and the rod portion 50' of the mounting bolt 5' is locked and fixedly connected to the main body portion 51'. It can also be that the abutting portion 41' protruding from the main body portion 40' to one side abuts against the flange 24, and the rod portion 50' of the mounting bolt 5' is locked and fixedly connected to the mounting hole 42' of the abutting portion 41'. The head 51' of the mounting bolt 5' abuts against the second folded portion 22. In this way, in the Z direction, that is, the installation direction, the head 51' abuts against the second folded portion 22 of the sleeve 2, and the main body portion 40' or the abutting portion 41' abuts against the flange 24, realizing the fixation and limitation of the sleeve 2 in the Z direction. When the quick-change joint is installed and subjected to external extrusion, at this time, because the sleeve 2 is fixed in the Z direction, the base body 1 moves up and down relative to the sleeve 2, realizing the floating of the sleeve 2 in the receiving cavity 12, and further can adjust the installation positions of different vehicle models and platforms, getting rid of the limitations of the spatial layout and usage scenarios.

[0057] Referring to Figures 3 to 8 , the sleeve 2 of the quick-change joint of the present utility model includes a second folded portion 22 and a flange 24, and one of the two abuts against the quick-change joint mounting brackets 4, 4'. Components that can be installed with the quick-change joint mounting brackets 4, 4' are provided at both ends of the sleeve 2, realizing that the quick-change joint mounting brackets 4, 4' can be installed and fixed to the quick-change joint from both sides, that is, the quick-change joint can be installed above the quick-change joint mounting brackets 4, 4', or the quick-change joint can be installed below the quick-change joint mounting brackets 4, 4'. These two installation methods enable the quick-change joint mounting brackets 4, 4' to be installed and fixed to the quick-change joint from both sides, can adapt to different vehicle platforms and models, get rid of the limitations of the spatial layout and usage scenarios, improve the compatibility of the battery swapping parts, and thus reduce the design and production costs.

[0058] It should be noted that the above preferred embodiments are only used to illustrate the principle of the present utility model and are not intended to limit the protection scope of the present utility model. Without departing from the principle of the present utility model, those skilled in the art can adjust the above settings so that the present utility model can be applied to more specific application scenarios.

[0059] Of course, the above replaceable embodiments can also be used in cross combination with each other, and between the replaceable embodiments and the preferred embodiments, so as to combine new embodiments to be applicable to more specific application scenarios.

[0060] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A quick-change connector, characterized in that: include: A substrate, the substrate comprising a receiving cavity recessed from the first surface and a first through hole penetrating the substrate, the receiving cavity being in communication with the first through hole; A sleeve, the sleeve comprising a hollow cylinder, the cylinder being arranged in the first through hole, one end of the cylinder being provided with a flange, and the other end of the cylinder being provided with a bending portion; An elastic member, wherein the elastic member is sleeved outside the barrel; Among them, a first accommodating cavity is provided between the bending portion and the barrel portion, the first end of the elastic member is accommodated in the first accommodating cavity, the second end of the elastic member is accommodated in the accommodating cavity, the flange or the bending portion is abutted against the quick-change connector mounting frame, and a part of the sleeve is accommodated in the accommodating cavity and can float in the accommodating cavity.

2. The quick-change connector according to claim 1, characterized in that: The bending portion includes a first folding portion and a second folding portion. The first folding portion, the second folding portion and the barrel portion are arranged to form the first accommodating cavity. The elastic member abuts against the first folding portion.

3. The quick-change connector according to claim 2, characterized in that: A blocking portion located outside the barrel portion is provided in the accommodating cavity, the elastic member is sleeved on the outside of the blocking portion, a second accommodating cavity is provided between the blocking portion and the inner wall of the accommodating cavity, the second end of the elastic member is accommodated in the second accommodating cavity and abuts against the bottom wall of the second accommodating cavity.

4. The quick-change connector according to claim 1, characterized in that: The base includes a convex portion protruding from the second surface, the convex portion corresponds to the setting position of the receiving cavity and the convex portion can abut against the flange.

5. The quick-change connector according to claim 4, characterized in that: The convex portion is arranged corresponding to the position of the first through hole, the first through hole is located at the corner of the base body and the number of the first through holes is four.

6. The quick-change connector according to claim 2, characterized in that: The end of the second folded portion is located in the receiving cavity and the depth of the receiving cavity is greater than the height of the second folded portion.

7. A cooling system, characterized in that: It comprises a quick-change connector as described in any one of claims 1 to 6.

8. An electrical device, characterized in that: Including the cooling system according to claim 7, the electrical equipment includes a quick-change joint mounting bracket and a mounting bolt, and the mounting bolt passes through the second through hole of the sleeve and is connected to the quick-change joint mounting bracket.

9. The electrical equipment according to claim 8, characterized in that: The quick-change connector mounting bracket includes a main body and a contact portion protruding from the main body to one side, and the contact portion contacts one of the flange and the bending portion.

10. The electrical equipment according to claim 9, characterized in that: The mounting bolt comprises a head and a rod, the head abuts against the flange and the other of the bent portions, the abutting portion is provided with a mounting hole, and the rod is matched and connected with the mounting hole.

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