A highly anti-oxidation copper busbar soft connection structure

Abstract

The present invention relates to the technical field of circuit contact components, and specifically to a highly anti-oxidation copper busbar soft connection structure, comprising a conductive contact, a soft copper sheet, a shell and a support assembly, wherein there are two conductive contacts, which are spaced apart in the left-right direction, and there are multiple soft copper sheets, both ends of which are respectively connected to the two conductive contacts. The present invention is provided with a conductive contact, a soft copper sheet and a support assembly, and when the support assembly is in a first supporting state, the middle position of the soft copper sheet is supported by the support assembly, and the support strength is higher and the service life is longer, and the support assembly has only one contact point with the soft copper sheet, which can minimize the wear of the soft copper sheet and ensure the flexibility of the soft copper sheet, and when the support assembly is in a second supporting state, there are multiple contact points between the support assembly and the soft copper sheet, and at this time, the support assembly spreads the soft copper sheet, which is conducive to the rapid heat dissipation of the soft copper sheet.

Description

Technical Field

[0001] The invention relates to the technical field of circuit contact parts, in particular to a highly anti-oxidation copper busbar soft connection structure. Background Art

[0002] Copper busbar is an important conductive material, which is widely used in power systems and electrical engineering. Copper busbar is a flat or rectangular cross-section conductor made of copper material, with good conductivity and mechanical strength. Copper busbar has excellent conductivity, mechanical properties and corrosion resistance, can effectively transmit large currents, and ensure the stability and safety of power systems.

[0003] The soft copper busbars in the prior art are divided into two categories according to the thickness of the soft copper busbars. One category of the soft copper busbars is composed of a relatively thick soft copper plate and two conductive contacts, and the two conductive contacts are respectively connected to the two ends of the length direction of the soft copper plate. For example, the durable copper busbar soft connection disclosed in the Chinese utility model with authorization announcement number CN221328201U uses the above-mentioned thicker soft copper busbar. The other category is composed of multiple soft copper sheets and two conductive contacts. The connecting ends of the conductive contacts are provided with multiple bayonet holes at equal intervals along the vertical direction, and the multiple bayonet holes are connected to the multiple soft copper sheets in a one-to-one correspondence. For the soft copper busbar with thicker soft copper plate, its supporting strength is better and the soft copper plate is not easy to bend and deform, but its heat dissipation performance is average. When the current passing through the soft copper plate is large, the temperature of the soft copper plate rises rapidly. For the soft copper busbar composed of multiple soft copper sheets, since there is a gap between two adjacent soft copper sheets, the heat dissipation is better, but since the middle part of the soft copper sheet is suspended, the supporting strength is poor and the service life is relatively low. Summary of the invention

[0004] Based on this, it is necessary to provide a highly anti-oxidation copper busbar soft connection structure to solve the problems raised in the background technology in view of the problems existing in the two current soft copper connection copper busbars.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A highly anti-oxidation copper busbar soft connection structure comprises:

[0007] Conductive contacts, there are two conductive contacts, and the two conductive contacts are spaced apart in the left-right direction;

[0008] A plurality of soft copper sheets are provided, and two ends of the plurality of soft copper sheets are respectively connected to two conductive contacts;

[0009] The outer shell has two ends fixedly connected to the two conductive contacts respectively, and the outer shell encloses the soft copper sheet inside;

[0010] A supporting assembly, wherein there are a plurality of supporting assemblies, the plurality of supporting assemblies are arranged inside the housing, and the supporting assemblies are located between two adjacent soft copper sheets;

[0011] The support assembly has a first support state and a second support state;

[0012] When the temperature inside the housing is less than or equal to a first preset value, the support assembly is in a first support state. In the first support state, the support assembly is in contact with the soft copper sheet. There is only one contact point between the support assembly and the soft copper sheet, and the contact point is located at the center of the length direction of the soft copper sheet.

[0013] When the temperature inside the housing is greater than or equal to a second preset value, the support assembly switches from the first support state to the second support state. In the second support state, the support assembly contacts the soft copper sheet, and there are multiple contact points between the support assembly and the soft copper sheet, and the multiple contact points are spaced apart along the length direction of the soft copper sheet.

[0014] The second preset value is greater than the first preset value.

[0015] In one of the embodiments, the support assembly includes a plurality of support half rings, and the plurality of support half rings are located inside the housing;

[0016] When the support assembly is in the first support state, the plurality of support half rings are nested in sequence from the inside to the outside, and the openings of two adjacent support half rings are arranged opposite to each other;

[0017] The support assembly also includes a plurality of telescopic rods, the axis of the telescopic rods is horizontal, the plurality of telescopic rods are divided into two groups, the fixed end of one group of telescopic rods is arranged on the left inner wall of the shell, and the fixed end of the other group of telescopic rods is arranged on the right inner wall of the shell, the telescopic ends of the plurality of telescopic rods are correspondingly hinged at the non-opening end of each supporting half ring, and the hinge points of the telescopic rods and two adjacent supporting half rings with the same opening direction are alternately arranged up and down;

[0018] The extension length of the telescopic end of the telescopic rod is negatively correlated with the temperature, and the change per unit time of the telescopic end of the telescopic rod is negatively correlated with the diameter of the supporting half ring hinged thereto;

[0019] A torsion spring is provided at the hinge point between the telescopic end of the telescopic rod and the supporting half ring. When the torsion spring is in a non-elastic deformation state, the opening of the supporting half ring connected to the telescopic rod on the left side of the shell faces right, and the opening of the supporting half ring connected to the telescopic rod on the right side of the shell faces left.

[0020] In one of the embodiments, a support column is further provided inside the shell, and when the support assembly is in the first support state, the outer peripheral surface of the support column is concentric with and in surface contact with the support semi-ring with the smallest diameter.

[0021] In one embodiment, the supporting semi-ring comprises an outer arc surface, an inner arc surface and a cross section, the cross section is located between the outer arc surface and the inner arc surface, the cross section is a plane, and the cross section is inclined along the axis of the supporting semi-ring;

[0022] When the support assembly is in the first support state, the inclination directions of the cross sections of two adjacent support half rings from the inside to the outside are opposite.

[0023] In one of the embodiments, a thermosensitive metal is provided between the fixed end and the telescopic end of the telescopic rod, and the memory property of the thermosensitive metal is configured such that the length of the thermosensitive metal is shortened when the temperature increases.

[0024] In one embodiment, a piston is provided at the telescopic end of the telescopic rod, and a first chamber is formed between the piston, the fixed end of the telescopic rod and the telescopic end of the telescopic rod. The first chamber is filled with a thermosensitive liquid medium, and the thermosensitive liquid medium is configured to expand in volume when the temperature rises.

[0025] In one of the embodiments, the housing includes a sliding part and two fixed parts, the two fixed parts are fixedly connected to the conductive contacts, and ends of the two fixed parts close to each other are slidably connected to the sliding part.

[0026] In one embodiment, grid holes are provided on both sides of the sliding portion, and a rotating plate is rotatably provided in the grid holes;

[0027] The rotating plate is configured so that when the supporting assembly is in a first supporting state, the rotating plate rotates to block the grid holes;

[0028] The rotating plate is configured so that when the supporting assembly is in the second supporting state, the rotating plate rotates to open the grid holes.

[0029] In one of the embodiments, a linkage assembly is provided between the rotating plate and the telescopic rod, and the linkage assembly is used to drive the rotating plate to rotate when the telescopic end of the telescopic rod moves, thereby blocking or opening the grid holes.

[0030] In one embodiment, the linkage assembly includes a sliding friction strip and a vertical connecting frame, and sliding grooves are provided on the left and right side surfaces of the sliding part, the sliding friction strip is slidably connected in the sliding grooves, and both ends of the vertical connecting frame are fixedly connected to the sliding friction strip, the telescopic end of the telescopic rod hinged to the supporting half ring with the smallest diameter on the left side of the outer shell passes through the vertical connecting frame and is fixedly connected to the vertical connecting frame on the left side of the outer shell, the telescopic end of the telescopic rod hinged to the supporting half ring with the smallest diameter on the right side of the outer shell passes through the vertical connecting frame and is fixedly connected to the vertical connecting frame on the right side of the outer shell, and friction wheels are provided on the upper and lower ends of the rotating plate, and the sliding friction strip and the friction wheel are frictionally transmitted.

[0031] The beneficial effects of the present invention are:

[0032] The present invention is provided with a conductive contact, a soft copper sheet and a supporting component. When the supporting component is in a first supporting state, the middle position of the soft copper sheet is supported by the supporting component, the supporting strength is higher, the service life is longer, and the supporting component has only one contact point with the soft copper sheet, which can minimize the wear of the soft copper sheet and ensure the flexibility of the soft copper sheet. When the supporting component is in a second supporting state, there are multiple contact points between the supporting component and the soft copper sheet. At this time, the supporting component stretches the soft copper sheet, so that the length of the area where the two ends of the soft copper sheet are located is shorter, which is conducive to the rapid heat dissipation of the soft copper sheet and avoids the problem of excessive deformation or melting of the soft copper sheet due to the continuous increase in the temperature of the soft copper sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is an overall schematic diagram of a highly anti-oxidation copper busbar soft connection structure of the present invention;

[0034] Figure 2 It is a front view of a highly anti-oxidation copper busbar soft connection structure of the present invention;

[0035] Figure 3 for Figure 2 Middle AA section view;

[0036] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at X in the middle;

[0037] Figure 5 This is an exploded view of a highly anti-oxidation copper busbar soft connection structure of the present invention;

[0038] Figure 6 This is a structural diagram of a linkage component in a highly anti-oxidation copper busbar soft connection structure of the present invention;

[0039] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at Y in the middle;

[0040] Figure 8 This is a schematic diagram of the position of the slide groove in a highly anti-oxidation copper busbar soft connection structure of the present invention;

[0041] Fig. 9 This is a schematic diagram of the connection between the friction wheel and the rotating plate in a highly anti-oxidation copper busbar soft connection structure of the present invention;

[0042] Fig.10 This is a schematic diagram of a cross-sectional structure of a highly anti-oxidation copper busbar soft connection structure of the present invention;

[0043] Fig.11 This is a schematic diagram of a supporting semi-ring structure in a highly anti-oxidation copper busbar soft connection structure of the present invention;

[0044] Fig.12 This is a schematic diagram of the first structure of a telescopic rod in a highly anti-oxidation copper busbar soft connection structure of the present invention;

[0045] Fig.13 This is a schematic diagram of the second structure of the telescopic rod in the highly anti-oxidation copper busbar soft connection structure of the present invention.

[0046] in:

[0047] 100, conductive contact; 200, soft copper sheet; 300, shell; 310, sliding part; 311, grid hole; 312, rotating plate; 313, slide groove; 320, fixed part; 400, support assembly; 410, support semi-ring; 411, outer arc surface; 412, inner arc surface; 413, cross section; 420, telescopic rod; 421, heat-sensitive metal; 422, piston; 423, first chamber; 430, support column; 500, linkage assembly; 510, sliding friction strip; 520, vertical connecting frame; 530, friction wheel. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0050] In the present invention, 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" or "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" or "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.

[0051] like Figure 1-Figure 13 As shown, a highly anti-oxidation copper busbar soft connection structure includes a conductive contact 100, a soft copper sheet 200, a shell 300 and a support assembly 400. There are two conductive contacts 100, and the two conductive contacts 100 are spaced apart in the left-right direction. There are multiple soft copper sheets 200, and the two ends of the multiple soft copper sheets 200 are respectively connected to the two conductive contacts 100. The two ends of the shell 300 are respectively fixedly connected to the two conductive contacts 100, and the shell 300 encloses the soft copper sheet 200 inside. There are multiple support assemblies 400, and the multiple support assemblies 400 are arranged inside the shell 300, and the support assembly 400 is located between two adjacent soft copper sheets 200. The support assembly 400 has a first support state and a second support state. When the shell 30 0, when the temperature inside the housing 300 is less than or equal to the first preset value, the support component 400 is in the first supporting state, in which the support component 400 is in contact with the soft copper sheet 200, and there is only one contact point between the support component 400 and the soft copper sheet 200, and the contact point is located at the center of the length direction of the soft copper sheet 200. When the temperature inside the housing 300 is greater than or equal to the second preset value, the support component 400 switches from the first supporting state to the second supporting state, in which the support component 400 is in contact with the soft copper sheet 200, and there are multiple contact points between the support component 400 and the soft copper sheet 200, and the multiple contact points are spaced apart along the length direction of the soft copper sheet 200, and the second preset value is greater than the first preset value.

[0052] When in use, the staff connects the two conductive contacts 100 to the input terminal device and the output terminal device of the current respectively. When the current passing through the soft copper sheet 200 is less than or equal to the rated current, the soft copper sheet 200 generates less heat during operation. At this time, the temperature inside the shell 300 is less than or equal to the first preset value. The support component 400 is in the first support state at this time. The support component 400 is in contact with the soft copper sheet 200, and there is only one contact point between the support component 400 and the soft copper sheet 200, and the contact point is located at the length of the soft copper sheet 200. The support assembly 400 is used to support the middle position of several soft copper sheets 200, and the two ends of several soft copper sheets 200 are attached to each other under the action of gravity, which is equivalent to "thickening" the two ends of the soft copper sheets 200. In this way, the middle position of the soft copper sheet 200 is supported by the support assembly 400, and the two ends of the soft copper sheet 200 are "thickened" to form a "plate-like" structure that can improve the support strength. Therefore, the overall support strength of the soft copper sheet 200 is higher and it is not easy to bend and deform. In addition, when the support assembly 400 is in the first supporting state, the only contact point between the support assembly 400 and the soft copper sheet 200 is located in the middle position of the length direction of the soft copper sheet 200. At this time, the soft copper sheet 200 has a larger deformation space in its length direction, which can ensure its flexibility.

[0053] When the current passing through the soft copper sheet 200 is greater than the rated current, the heat generation per unit time of the soft copper sheet 200 increases, and the temperature inside the shell 300 gradually increases. When the temperature inside the shell 300 increases to be greater than or equal to the second preset value, the support component 400 switches from the first support state to the second support state. At this time, the contact point between the support component 400 and the soft copper sheet 200 changes from one to multiple, and the multiple contact points are arranged at intervals along the length direction of the soft copper sheet 200, so that the two ends of the soft copper sheet 200 cannot be fitted together, but there is a certain gap between the two adjacent soft copper sheets 200, which increases the heat dissipation space between the two adjacent soft copper sheets 200, which is beneficial to the rapid heat dissipation of the soft copper sheet 200 and avoids the problem of excessive deformation or melting of the soft copper sheet 200 due to the continuous increase in the temperature of the soft copper sheet 200.

[0054] It should also be noted that when the support component 400 is in the first support state, the support component 400 has only one contact point with the soft copper sheet 200. This can minimize the contact area between the support component 400 and the soft copper sheet 200. When the length of the soft copper sheet 200 changes due to thermal expansion and contraction, the surface wear area of ​​the soft copper sheet 200 is smaller.

[0055] In a further embodiment, Figure 4 and Figure 7As shown, the support assembly 400 includes a plurality of support semi-rings 410, and the plurality of support semi-rings 410 are located inside the housing 300. When the support assembly 400 is in the first support state, the plurality of support semi-rings 410 are nested in sequence from the inside to the outside, and the openings of two adjacent support semi-rings 410 are arranged opposite to each other. The support assembly 400 also includes a plurality of telescopic rods 420, and the axes of the telescopic rods 420 are horizontal. The plurality of telescopic rods 420 are divided into two groups, wherein the fixed ends of one group of telescopic rods 420 are arranged on the left inner wall of the housing 300, and the fixed ends of the other group of telescopic rods 420 are arranged on the right inner wall of the housing 300, and the telescopic ends of the plurality of telescopic rods 420 are correspondingly hinged on each support At the non-opening end of the support half ring 410, the hinge points of the telescopic rod 420 and the two adjacent support half rings 410 with the same opening direction are alternately arranged up and down, the extended length of the telescopic end of the telescopic rod 420 is negatively correlated with the temperature, and the length change per unit time of the telescopic end of the telescopic rod 420 is negatively correlated with the diameter of the support half ring 410 hinged thereto, and a torsion spring is provided at the hinge point of the telescopic end of the telescopic rod 420 and the support half ring 410. In the non-elastic deformation state of the torsion spring, the opening of the support half ring 410 connected to the telescopic rod 420 located on the left side of the shell 300 faces right, and the opening of the support half ring 410 connected to the telescopic rod 420 located on the right side of the shell 300 faces left.

[0056] When the current passing through the soft copper sheet 200 is greater than the rated current, the soft copper sheet 200 generates a lot of heat per unit time, and the temperature inside the housing 300 gradually rises to a value greater than the first preset value. At this time, the extension length of the telescopic end of the telescopic rod 420 gradually shortens, and the support semi-rings 410 with openings facing different directions gradually detach from the nesting. In addition, since the length change per unit time of the telescopic end of the telescopic rod 420 is negatively correlated with the diameter of the support semi-ring 410 hinged thereto, the openings of the two adjacent support semi-rings 410 facing the same direction are directly separated from the nesting. The supporting half ring 410 with a smaller diameter moves a greater distance than the supporting half ring 410 with a larger diameter. Therefore, the supporting half ring 410 with a smaller diameter will abut against the inner side of the supporting half ring 410 with a larger diameter. In addition, since the hinge points of the two adjacent supporting half rings 410 with the same opening direction as the telescopic rod 420 are alternately arranged up and down, the supporting half ring 410 will overcome the torsion force of the torsion spring between it and the telescopic rod 420 during the movement, so that the supporting half ring 410 rotates around the hinge point between it and the telescopic rod 420. When it rotates to the supporting half ring 410 with a larger diameter, the supporting half ring 410 will rotate around the hinge point between it and the telescopic rod 420. 0 no longer interferes with the movement of the supporting half ring 410 with a small diameter, as the temperature continues to rise, when the temperature is greater than the second preset value, the supporting assembly 400 switches from the first supporting state to the second supporting state, the supporting half ring 410 with a large diameter and the supporting half ring 410 with a small diameter no longer abut against each other, and the distance between the two gradually increases. At this time, the contact point between the supporting half ring 410 and the soft copper sheet 200 changes from one to multiple, and the contact point between the supporting half ring 410 with a small diameter and the soft copper sheet 200 is 1 square meter away from the length of the soft copper sheet 200. The distance between the center positions of the two support semi-rings 410 and the soft copper sheet 200 is far, and the distance between the contact point of the support semi-ring 410 with a large diameter and the center position of the soft copper sheet 200 in the length direction is close. After the support semi-rings 410 no longer abut each other, under the elastic action of the torsion spring, multiple support semi-rings 410 are reset at the same time. After reset, the support semi-ring 410 connected to the telescopic rod 420 located on the left side of the shell 300 is still open to the right, and the support semi-ring 410 connected to the telescopic rod 420 located on the right side of the shell 300 is still open to the left. When the temperature inside the shell 300 gradually decreases to less than the second preset value, the support semi-rings 410 rotate in the opposite direction and approach each other. When the temperature inside the shell 300 further decreases to less than or equal to the first preset value, the support assembly 400 switches from the second support state to the first support state. The specific process is not repeated.

[0057] It can be understood that when the support component 400 switches to the second support state, there are multiple contact points between the soft copper sheet 200 and the support half ring 410. Under the action of the multiple support half rings 410, the areas where the two ends of the soft copper sheet 200 are located cannot fit together, but there is a certain gap between the two adjacent soft copper sheets 200, thereby increasing the heat dissipation space between the two adjacent soft copper sheets 200, which is beneficial to the rapid heat dissipation of the soft copper sheet 200 and avoids the problem of excessive deformation or melting of the soft copper sheet 200 due to the continuous increase in the temperature of the soft copper sheet 200.

[0058] It should also be noted that the higher the temperature inside the shell 300, the farther the support half ring 410 moves in the direction of the two ends of the soft copper sheet 200, and the length of the area where the two ends of the soft copper sheet 200 are fitted together is shorter, so that the heat dissipation space is larger and the heat dissipation efficiency is higher.

[0059] In a further embodiment, Figure 4 As shown, a support column 430 is further provided inside the housing 300. When the support assembly 400 is in the first support state, the outer peripheral surface of the support column 430 is concentric with and in surface contact with the support half ring 410 with the smallest diameter.

[0060] When the support assembly 400 is in the first support state, the outer circumference of the support column 430 is concentric with and in surface contact with the support half ring 410 with the smallest diameter. At this time, the support column 430 supports the support half ring 410 to prevent the support half ring 410 from bending and deforming due to long-term stress.

[0061] In a further embodiment, Fig.10 As shown, the support semi-ring 410 includes an outer arc surface 411, an inner arc surface 412 and a cross section 413. The cross section 413 is located between the outer arc surface 411 and the inner arc surface 412. The cross section 413 is a plane. The cross section 413 is inclined along the axis of the support semi-ring 410. When the support assembly 400 is in the first support state, the inclination directions of the cross sections 413 of two adjacent support semi-rings 410 from the inside to the outside are opposite.

[0062] Since the inclined directions of the cross sections 413 of the two adjacent support semi-rings 410 from the inside to the outside are opposite, the two adjacent support semi-rings 410 can support each other, thereby ensuring the support of the support semi-rings 410 and preventing them from deforming. In addition, the inclined directions of the cross sections 413 of the two adjacent support semi-rings 410 from the inside to the outside are opposite, so that when the support semi-rings 410 are reset, the two adjacent support semi-rings 410 can be reset to a state of being nested in sequence from the inside to the outside more easily.

[0063] In a further embodiment, as shown in FIG. 12 , a thermosensitive metal 421 is provided between the fixed end and the telescopic end of the telescopic rod 420, and the memory property of the thermosensitive metal 421 is configured such that the length of the thermosensitive metal 421 is shortened when the temperature rises. In order to make the length change per unit time of the telescopic end of the telescopic rod 420 negatively correlated with the diameter of the support semi-ring 410 hinged thereto, in this embodiment, the diameter of the support semi-ring 410 and the negative thermal expansion coefficient of the thermosensitive metal 421 in the telescopic rod 420 hinged thereto should be negatively correlated, that is, the support semi-ring 410 with a large diameter corresponds to the thermosensitive metal 421 with a small negative thermal expansion coefficient, that is, when the thermosensitive metal 421 is heated, the length shortens less, and the support semi-ring 410 with a small diameter corresponds to the thermosensitive metal 421 with a large negative thermal expansion coefficient, that is, when the thermosensitive metal 421 is heated, the length shortens more.

[0064] When the temperature inside the housing 300 rises to a value greater than the first preset value, the length of the thermosensitive metal 421 shortens after being heated, and the thermosensitive metal 421 drives the telescopic end of the telescopic rod 420 to move in a direction away from the center of the soft copper sheet 200. When the temperature inside the housing 300 decreases, the length of the thermosensitive metal 421 increases, and the thermosensitive metal 421 drives the telescopic end of the telescopic rod 420 to move in a direction close to the center of the soft copper sheet 200.

[0065] In a further embodiment, Fig.13 As shown, the telescopic end of the telescopic rod 420 is provided with a piston 422, and the piston 422, the fixed end of the telescopic rod 420 and the telescopic end of the telescopic rod 420 are surrounded to form a first chamber 423, and the first chamber 423 is filled with a thermosensitive liquid medium, and the thermosensitive liquid medium is configured to expand in volume when the temperature rises. In this embodiment, the diameter of the support semi-ring 410 should be negatively correlated with the thermal expansion coefficient of the thermosensitive liquid medium in the telescopic rod 420 hinged thereto, that is, the support semi-ring 410 with a large diameter corresponds to the thermosensitive liquid medium with a small thermal expansion coefficient, that is, the volume of the thermosensitive liquid medium expands less after being heated, and the support semi-ring 410 with a small diameter corresponds to the thermosensitive liquid medium with a large thermal expansion coefficient, that is, the volume of the thermosensitive liquid medium expands more after being heated.

[0066] When the temperature inside the housing 300 rises to a value greater than the first preset value, the thermosensitive liquid medium inside the thermosensitive metal 421 absorbs heat and expands in volume, and then the thermosensitive liquid medium pushes the piston 422 to move away from the center of the soft copper sheet 200 .

[0067] When the temperature inside the housing 300 decreases, the volume expansion of the thermosensitive liquid medium decreases, and then under the action of negative pressure, the piston 422 drives the telescopic end of the telescopic rod 420 to move toward the center of the soft copper sheet 200 .

[0068] In a further embodiment, Figure 1 As shown, the housing 300 includes a sliding portion 310 and two fixed portions 320 . The two fixed portions 320 are fixedly connected to the conductive contacts 100 , and one end of the two fixed portions 320 close to each other is slidably connected to the sliding portion 310 .

[0069] It can be understood that the sliding portion 310 and the two fixed portions 320 are connected in a sliding manner in diameter in order to adapt to the change in the length of the soft copper sheet 200 when the temperature changes. When the temperature rises, the gas inside the shell 300 expands. At this time, the two fixed portions 320 are away from the sliding portion 310, so that the volume inside the shell 300 increases to adapt to the change in the length of the soft copper sheet 200 when the temperature inside the shell 300 increases. When the temperature inside the shell 300 decreases, the length of the soft copper sheet 200 decreases. At this time, under the action of the soft copper sheet 200 and the gas pressure inside the shell 300, the two fixed portions 320 are close to each other, so that the volume inside the shell 300 decreases to adapt to the change in the length of the soft copper sheet 200 when the temperature inside the shell 300 decreases.

[0070] In a further embodiment, Figure 5 , Figure 8 and Fig. 9 As shown, grid holes 311 are opened on both sides of the sliding part 310, and a rotating plate 312 is rotatably arranged in the grid hole 311. The rotating plate 312 is configured so that when the support assembly 400 is in the first supporting state, the rotating plate 312 rotates to block the grid hole 311, and the rotating plate 312 is configured so that when the support assembly 400 is in the second supporting state, the rotating plate 312 rotates to open the grid hole 311.

[0071] When the support assembly 400 is in the second support state, the temperature inside the shell 300 is high. In order to accelerate the heat dissipation, the rotating plate 312 needs to be rotated to open the grid hole 311. At this time, the inside of the shell 300 is connected to the outside through the grid hole 311. The hot air inside the shell 300 can be discharged to the outside of the shell 300 through the grid hole 311, so that the temperature inside the shell 300 can be quickly reduced.

[0072] When the temperature inside the shell 300 drops to less than or equal to the first preset value, the support assembly 400 is in the first support state. At this time, the rotating plate 312 rotates to block the grid hole 311, which can prevent dust from entering the inside of the shell 300 and prevent dust from adhering to the surface of the soft copper sheet 200 and causing the resistivity of the soft copper sheet 200 to increase.

[0073] In a further embodiment, Figure 5 , Figure 6 and Fig. 9As shown, a linkage assembly 500 is provided between the rotating plate 312 and the telescopic rod 420. The linkage assembly 500 is used to drive the rotating plate 312 to rotate when the telescopic end of the telescopic rod 420 moves, so that the grid hole 311 is blocked or opened. The linkage assembly 500 includes a sliding friction strip 510 and a vertical connecting frame 520. The left and right sides of the sliding part 310 are both provided with a sliding groove 313. The sliding friction strip 510 is slidably connected in the sliding groove 313. Both ends of the vertical connecting frame 520 are fixed to the sliding friction strip 510. The telescopic end of the telescopic rod 420 hinged to the supporting half ring 410 with the smallest diameter on the left side of the shell 300 passes through the vertical connecting frame 520 and is fixedly connected to the vertical connecting frame 520 on the left side of the shell 300; the telescopic end of the telescopic rod 420 hinged to the supporting half ring 410 with the smallest diameter on the right side of the shell 300 passes through the vertical connecting frame 520 and is fixedly connected to the vertical connecting frame 520 on the right side of the shell 300; friction wheels 530 are provided at the upper and lower ends of the rotating plate 312, and the sliding friction strip and the friction wheel 530 are frictionally transmitted.

[0074] In the initial state, the temperature inside the shell 300 is less than or equal to the first preset value. At this time, the grid hole 311 is blocked by the rotating plate 312. When the temperature inside the shell 300 rises to a value greater than the first preset value, the telescopic end of the telescopic rod 420 hinged to the supporting half ring 410 with the smallest diameter on the left side of the shell 300 and the telescopic end of the telescopic rod 420 hinged to the supporting half ring 410 with the smallest diameter on the right side of the shell 300 move in a direction away from the center position of the soft copper sheet 200. At this time, the corresponding telescopic end of the telescopic rod 420 drives the vertical connecting frame 520 to move, and the vertical connecting frame 520 drives the sliding friction strip 510 to move along the slide groove 313. The movement of the sliding friction strip 510 drives the friction wheel 530 to rotate, and the friction wheel 530 drives the rotating plate 312 to rotate synchronously, so that when the temperature inside the shell 300 rises to a value greater than or equal to the second preset value, the rotating plate 312 no longer blocks the grid hole 311, and the grid hole 311 is in an open state to accelerate the hot air inside the shell 300 to flow outward.

[0075] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above 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.

[0076] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A highly anti-oxidation copper busbar soft connection structure, characterized in that: include: Conductive contacts, there are two conductive contacts, and the two conductive contacts are spaced apart in the left-right direction; A plurality of soft copper sheets are provided, and two ends of the plurality of soft copper sheets are respectively connected to two conductive contacts; The outer shell has two ends fixedly connected to the two conductive contacts respectively, and the outer shell encloses the soft copper sheet inside; A supporting assembly, wherein there are a plurality of supporting assemblies, the plurality of supporting assemblies are arranged inside the housing, and the supporting assemblies are located between two adjacent soft copper sheets; The support assembly has a first support state and a second support state; When the temperature inside the housing is less than or equal to a first preset value, the support assembly is in a first support state. In the first support state, the support assembly is in contact with the soft copper sheet. There is only one contact point between the support assembly and the soft copper sheet, and the contact point is located at the center of the length direction of the soft copper sheet. When the temperature inside the housing is greater than or equal to a second preset value, the support assembly switches from the first support state to the second support state. In the second support state, the support assembly contacts the soft copper sheet, and there are multiple contact points between the support assembly and the soft copper sheet, and the multiple contact points are spaced apart along the length direction of the soft copper sheet. The second preset value is greater than the first preset value; The support assembly includes a plurality of support half rings, and the plurality of support half rings are located inside the housing; When the support assembly is in the first support state, the plurality of support half rings are nested in sequence from the inside to the outside, and the openings of two adjacent support half rings are arranged opposite to each other; The support assembly also includes a plurality of telescopic rods, the axis of the telescopic rods is horizontal, the plurality of telescopic rods are divided into two groups, the fixed end of one group of telescopic rods is arranged on the left inner wall of the shell, and the fixed end of the other group of telescopic rods is arranged on the right inner wall of the shell, the telescopic ends of the plurality of telescopic rods are correspondingly hinged at the non-opening end of each supporting half ring, and the hinge points of the telescopic rods and two adjacent supporting half rings with the same opening direction are alternately arranged up and down; The extension length of the telescopic end of the telescopic rod is negatively correlated with the temperature, and the change per unit time of the telescopic end of the telescopic rod is negatively correlated with the diameter of the supporting half ring hinged thereto; A torsion spring is provided at the hinge point between the telescopic end of the telescopic rod and the supporting half ring. When the torsion spring is in a non-elastic deformation state, the opening of the supporting half ring connected to the telescopic rod on the left side of the shell faces right, and the opening of the supporting half ring connected to the telescopic rod on the right side of the shell faces left.

2. A highly anti-oxidation copper busbar soft connection structure according to claim 1, characterized in that: A support column is also arranged inside the shell. When the support assembly is in the first support state, the outer peripheral surface of the support column is concentric with and in surface contact with the support semi-ring with the smallest diameter.

3. The highly anti-oxidation copper busbar soft connection structure according to claim 1, characterized in that: The supporting semi-ring comprises an outer arc surface, an inner arc surface and a cross section, the cross section is located between the outer arc surface and the inner arc surface, the cross section is a plane, and the cross section is inclined along the axis of the supporting semi-ring; When the support assembly is in the first support state, the inclination directions of the cross sections of two adjacent support half rings from the inside to the outside are opposite.

4. The highly anti-oxidation copper busbar soft connection structure according to claim 1, characterized in that: A thermosensitive metal is provided between the fixed end and the telescopic end of the telescopic rod, and the memory property of the thermosensitive metal is configured such that the length of the thermosensitive metal is shortened when the temperature rises.

5. The highly anti-oxidation copper busbar soft connection structure according to claim 1, characterized in that: The telescopic end of the telescopic rod is provided with a piston, and a first chamber is formed between the piston, the fixed end of the telescopic rod and the telescopic end of the telescopic rod. The first chamber is filled with a thermosensitive liquid medium, and the thermosensitive liquid medium is configured to expand in volume when the temperature rises.

6. The highly anti-oxidation copper busbar soft connection structure according to claim 1, characterized in that: The housing comprises a sliding part and two fixed parts, the two fixed parts are fixedly connected to the conductive contacts, and one end of the two fixed parts close to each other is slidably connected to the sliding part.

7. A highly anti-oxidation copper busbar soft connection structure according to claim 6, characterized in that: The left and right sides of the sliding part are provided with grid holes, and a rotating plate is rotatably arranged in the grid holes; The rotating plate is configured so that when the supporting assembly is in a first supporting state, the rotating plate rotates to block the grid holes; The rotating plate is configured such that when the supporting assembly is in the second supporting state, the rotating plate rotates to open the grid holes.

8. The highly anti-oxidation copper busbar soft connection structure according to claim 7, characterized in that: A linkage assembly is provided between the rotating plate and the telescopic rod, and the linkage assembly is used to drive the rotating plate to rotate when the telescopic end of the telescopic rod moves, thereby blocking or opening the grid holes.

9. A highly anti-oxidation copper busbar soft connection structure according to claim 8, characterized in that: The linkage assembly includes a sliding friction strip and a vertical connecting frame. Slide grooves are provided on the left and right side surfaces of the sliding part. The sliding friction strip is slidably connected in the slide grooves. Both ends of the vertical connecting frame are fixedly connected to the sliding friction strip. The telescopic end of the telescopic rod hinged to the supporting semi-ring with the smallest diameter on the left side of the shell passes through the vertical connecting frame and is fixedly connected to the vertical connecting frame on the left side of the shell. The telescopic end of the telescopic rod hinged to the supporting semi-ring with the smallest diameter on the right side of the shell passes through the vertical connecting frame and is fixedly connected to the vertical connecting frame on the right side of the shell. Friction wheels are provided on the upper and lower ends of the rotating plate, and the sliding friction strip and the friction wheel are frictionally transmitted.

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