A copper busbar transmission device

Abstract

The present invention belongs to the technical field of tinning of copper busbars, and specifically relates to a conveying device for copper busbars. The conveying device includes a first rubber wheel, which is used to convey the copper busbar placed on the first rubber wheel; a conductive rotating shaft, which is spaced apart from the first rubber wheel; an elastic conductive component assembly, which is arranged on the conductive rotating shaft and has a plurality of abutting portions that can approach or move away from the first rubber wheel as the conductive rotating shaft rotates, and the abutting portions can abut against the corresponding copper busbar surface as the conductive rotating shaft rotates. The present invention arranges an elastic conductive component assembly on the conveying device, which has a plurality of abutting portions that can approach or move away from the first rubber wheel as the conductive rotating shaft rotates, and the abutting portions can contact the corresponding copper busbar surface, so that all copper busbars can be connected to the power supply at the same time, and the fixed point is improved to multi-point contact, so that the uniformity of the thickness of the tin layer is guaranteed in the tinning process, and the problem of excessive local current and blackening of the surface of the copper busbar due to poor contact is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of tinning copper busbars, and in particular relates to a conveying device for copper busbars. Background Art

[0002] Copper busbar (also known as copper busbar) is a conductive connection carrier widely used in electrical, power, electrical and other industrial fields. The working environment of copper busbar is mostly outdoors or in factory workshops. These environments often have a lot of water vapor and condensation, which can easily cause oxidation and corrosion of copper busbar. In order to prevent oxidation of copper busbar and ensure conductivity, the surface or connection parts of copper busbar are often tinned, and a thin layer of tin is evenly plated on the surface of copper busbar.

[0003] However, the existing copper busbar tinning technology has the following problems: first, the electrolyte used has environmental problems and has a strong odor; second, the traditional tinning technology mostly uses static hanging plating, which has low plating efficiency and slow production speed. The production line can only produce 1-2 tons per day; third, the traditional tinning technology cannot be fully automated on the assembly line, and the labor intensity of workers is high.

[0004] Chinese patent document CN107245750A discloses a continuous tinning production line for copper bars, which has a feeding and conveying part, a tinning part and a feeding and stacking part arranged from left to right in sequence; an exhaust gas suction pipe is installed at the upper end of the tinning part, and the exhaust gas suction pipe is connected to the exhaust gas treatment tower and is purified; a waste water pipe is installed at the lower end of the tinning part, and the waste water pipe is connected to the water treatment system and is purified. In this patent, the passive feeding device is connected to the cathode plate and allows the copper bar passing through to carry the cathode current. The cathode plate is connected to the cathode of the power supply. When the copper bar is delivered, it directly conducts electricity and also becomes the cathode; the passive feeding device is connected to the cathode plate during the entire tinning process. When the copper bar is not subjected to the tinning process and undergoes other treatments, it is also connected to the cathode plate, which increases the energy consumption of the production line, and is prone to electric shock, reducing the safety of operation. In addition, in the prior art, the copper busbar is not absolutely flat and can only contact two points with the energized pressure roller, which can easily cause the copper busbar to have a black surface due to uneven conductivity. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problems in the prior art of the copper busbar tinning process, in which the copper busbar and the cathode substrate are always connected during the entire preparation process, resulting in increased energy consumption and poor operational safety. The copper busbar is prone to defects such as blackening of the surface due to uneven conductivity, thereby providing a copper busbar transmission device.

[0006] To this end, the present invention provides the following technical solutions.

[0007] The present invention provides a copper busbar transmission device, comprising:

[0008] A first rubber wheel, used for conveying the copper busbar placed on the first rubber wheel;

[0009] The conductive rotating shaft is spaced apart from the first rubber wheel;

[0010] The elastic conductive component is arranged on the conductive rotating shaft and has a plurality of abutment parts which can be close to or away from the first rubber wheel as the conductive rotating shaft rotates, and the abutment parts can abut against the corresponding copper busbar surface as the conductive rotating shaft rotates.

[0011] The elastic conductive member assembly includes a plurality of conductive springs arranged on the conductive rotating shaft at intervals along the axial direction thereof, and,

[0012] The conductive wheel is arranged at the end of the conductive spring sheet and serves as the abutment portion.

[0013] The conductive rotating shaft is arranged parallel to the first rubber wheel;

[0014] The conductive spring is perpendicular to the conductive rotation axis; and / or,

[0015] The number of the abutting portions corresponds one to one to the number of the copper busbars.

[0016] The conductive wheel is filled with a conductive fluid;

[0017] Preferably, the conductive fluid is a low melting point alloy;

[0018] Preferably, the low melting point alloy is an indium gallium alloy or an indium gallium tin alloy.

[0019] The copper busbar transmission device also includes:

[0020] The second rubber wheel is fixedly connected to the conductive rotating shaft and can be close to or away from the first rubber wheel as the conductive rotating shaft rotates. The second rubber wheel can abut against the surface of the copper busbar as the conductive rotating shaft rotates.

[0021] The copper busbar transmission device further includes a conductive support assembly, which includes a first conductive support member and a second conductive support member, wherein the first conductive support member is disposed on the conductive rotating shaft near both ends thereof and is used to fix both ends of the second rubber wheel;

[0022] The second conductive support member is connected to the first conductive support members at both ends of the second rubber wheel and fixed thereon, and an elastic conductive member assembly is arranged on the second conductive support member;

[0023] Preferably, the first conductive support member and the second conductive support member are both made of conductive metal.

[0024] The first conductive support member is perpendicular to the conductive rotation axis;

[0025] The second conductive support member is perpendicular to the first conductive support member.

[0026] The copper busbar transmission device also includes:

[0027] A first power unit is fixedly connected to the conductive shaft, and the conductive shaft is driven to rotate by the first power unit;

[0028] A power source connected to the conductive shaft;

[0029] The second power unit is connected to the first rubber wheel, and the first rubber wheel is driven to rotate by the second power unit.

[0030] Further, the first power unit is a cylinder;

[0031] The second power unit is a reduction motor, which drives the first rubber wheel to rotate through gears that mesh with each other.

[0032] Furthermore, the conductive spring piece includes a first connecting section and a second connecting section connected in sequence, and when the abutting portion abuts against the corresponding copper busbar surface, the first connecting section is inclined relative to the copper busbar, and the second connecting section is parallel to the copper busbar.

[0033] The technical solution of the present invention has the following advantages:

[0034] 1. The copper busbar conveying device provided by the present invention comprises a first rubber wheel for conveying the copper busbar placed on the first rubber wheel; a conductive rotating shaft arranged at a distance from the first rubber wheel; an elastic conductive member assembly arranged on the conductive rotating shaft, having a plurality of abutment portions that can approach or move away from the first rubber wheel as the conductive rotating shaft rotates, and the abutment portions can abut against the corresponding copper busbar surface as the conductive rotating shaft rotates. The present invention arranges an elastic conductive component assembly on a conveying device, which has a plurality of abutment portions that can rotate with the conductive rotating shaft and move closer to or away from the first rubber wheel, and the abutment portions can contact the corresponding copper busbar surfaces, so that all copper busbars can be connected to the power supply at the same time, and the fixed point contact is improved to multi-point contact, and the uniformity of the tin layer thickness is guaranteed in the tinning process, and the problem in the existing tinning copper busbar process that the copper busbar is not absolutely flat, when the integral pressure roller is used for conduction, the actual conductive contact is point contact, and each roller can only contact 2 points on the copper busbar, resulting in poor contact of the copper busbar, resulting in excessive local current and blackening of the surface during processing.

[0035] 2. The copper busbar conveying device provided by the present invention can abut against the surface of the copper busbar through the abutment portion, thereby ensuring that the copper busbar is connected to the power supply during the tinning process of the copper busbar. When the copper busbar leaves the tinning process, the power supply is disconnected so that the copper busbar is no longer energized, thereby improving the safety of operation and reducing the risk of electric injury. At the same time, during the process, when the copper busbar leaves the device and enters other processing processes, it is no longer energized, which can reduce the consumption of electric energy and achieve the effect of saving electric energy.

[0036] The copper busbar conveying device has a simple structure and a small size, which can not only ensure the normal progress of the tinning process, but also reduce the risk of electric injury and improve the safety of operation, and is suitable for promotion and application in the copper busbar tinning process.

[0037] 3. The transmission device of the copper busbar provided by the present invention, the elastic conductive part assembly includes a plurality of conductive spring sheets arranged on the conductive rotating shaft at axial intervals, and a conductive wheel arranged at the end of the conductive spring sheet and serving as an abutment portion; the conductive spring sheet has a good buffering effect, reduces the damage of the abutment portion, and increases the service life of the abutment portion.

[0038] A conductive fluid is arranged inside the conductive wheel, and the current is better transmitted to the conductive wheel through the copper shaft of the conductive wheel. This method has the advantages of flexible rotation and efficient conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 is a schematic diagram of the three-dimensional structure of the copper busbar transmission device in Example 1 of the present invention;

[0041] Figure 2 It is a left side view of the copper busbar transmission device in Example 1 of the present invention;

[0042] Figure 3 is a front cross-sectional view of a copper busbar transmission device in Example 1 of the present invention;

[0043] Figure 4 is a top view of the copper busbar transmission device in Example 1 of the present invention;

[0044] Figure 5 is a cross-sectional view of the conductive wheel in Example 1 of the present invention;

[0045] Figure 6 is a schematic structural diagram of the second rubber wheel in Embodiment 1 of the present invention;

[0046] Reference numerals:

[0047] 1-end of the conductive shaft; 2-reduction motor; 3-gear; 4-conductive wheel; 5-copper busbar; 6-conductive spring; 7-first rubber wheel; 8-second rubber wheel; 9-second conductive support member; 10-first conductive support member; 11-conductive shaft; 12-cylinder; 13-cylinder force plate;

[0048] 4-1-conductive fluid; 4-2-first bearing; 4-3-sealing ring; 4-4-copper shaft; 4-5-first rotor;

[0049] 6-1-first connecting section; 6-2-second connecting section;

[0050] 8-1-O-ring; 8-2-copper roller; 8-3-conductive fluid; 8-4-second bearing; 8-5-second rotor. DETAILED DESCRIPTION

[0051] The following examples are provided for a better understanding of the present invention, but are not intended to limit the best mode of implementation, nor to limit the content and protection scope of the present invention. Any product identical or similar to the present invention obtained by anyone under the inspiration of the present invention or by combining the features of the present invention with other prior arts shall fall within the protection scope of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0055] Example 1

[0056] This embodiment provides a copper busbar transmission device, such as Figure 1-5 As shown, including

[0057] The first rubber wheel 7 is used to transfer the copper busbar 5 placed on the first rubber wheel; the first rubber wheel is connected to the second power unit. In this embodiment, the second power unit is a reduction motor 2. The reduction motor drives the first rubber wheel to rotate through the mutually meshing gears 3, thereby transferring the copper busbar 5 placed thereon;

[0058] The conductive shaft 11 is spaced apart from the first rubber wheel 7, and the end 1 of the conductive shaft 11 is connected to the power source. Meanwhile, the conductive shaft 11 is fixedly connected to the first power unit 1, and the conductive shaft is driven to rotate by the power unit. In this embodiment, the first power unit may be a cylinder 1;

[0059] The elastic conductive component assembly is disposed on the conductive rotating shaft 11 and has a plurality of abutment portions that can move closer to or farther from the first rubber wheel 7 as the conductive rotating shaft rotates, and the abutment portions can abut against the surface of the corresponding copper busbar 5 as the conductive rotating shaft rotates;

[0060] In the above-mentioned conveying device, an elastic conductive component assembly is arranged on the conveying device, and the elastic conductive component assembly has a plurality of abutment portions that can be close to or away from the first rubber wheel as the conductive rotating shaft rotates, and the abutment portions can contact the corresponding copper busbar surfaces, so that all copper busbars can be connected to the power supply at the same time, and the fixed point is improved to multi-point contact, and the uniformity of the tin layer thickness is guaranteed in the tinning process, which overcomes the problem in the existing tinning copper busbar process that the copper busbar is not absolutely flat. When conducting electricity with an integral pressure roller, the actual conductive contact is point contact, and each roller can only contact 2 points on the copper busbar, resulting in poor contact of the copper busbar, resulting in local excessive current and blackening of the surface during processing.

[0061] In an optional embodiment, the elastic conductive member assembly includes a plurality of conductive springs arranged on the conductive rotating shaft at intervals along the axial direction thereof, and a conductive wheel arranged at the end of the conductive spring and serving as an abutment portion. Figure 1 As shown, the number of conductive springs is 9. The conductive springs can play a buffering role and reduce the damage to the conductive wheel. At the same time, the deformation force of the conductive springs can be used to make the conductive wheel close to the copper busbar to ensure a good conductive contact effect. More specifically, as Figure 5As shown, the conductive wheel includes a copper shaft 4-4 and two corrosion-resistant first bearings 4-2 sleeved thereon near both ends of the copper shaft 4-4, a first rotating wheel 4-5 is fixed on the outer surface of the two first bearings 4-2, and a sealing ring 4-3 is respectively arranged between the first rotating wheel 4-5 and the copper shaft 4-4 near the two first bearings 4-2. The sealing ring 4-3, the copper shaft 4-4 and the first rotating wheel 4-5 enclose a closed space for filling a conductive fluid 4-1, and the current from the conductive spring and the copper shaft 4-4 in turn is transmitted to the first rotating wheel 4-5 through the conductive fluid 4-1, and finally transmitted to the copper busbar through the rotating wheel 4-5; the conductive fluid 4-1 can be selected from a low melting point alloy, such as an indium gallium alloy or an indium gallium tin alloy. In one embodiment, the conductive fluid 4-1 can be an indium gallium alloy with a mass ratio of 14:86, and in another embodiment, the conductive fluid 4-1 can be a gallium indium tin alloy with a mass ratio of 68:22:10.

[0062] Of course, as required, a plurality of conductive springs in the elastic conductive member assembly can be vertically connected to the conductive rotating shaft via a connecting shaft.

[0063] In this embodiment, the material of the conductive shaft, the conductive spring and the conductive wheel may be but is not limited to copper.

[0064] like Figure 1 and 2 The conductive shaft is arranged parallel to the first rubber wheel; the conductive spring is perpendicular to the conductive shaft. Through this arrangement, the conductive shaft and the first rubber wheel can rotate synchronously, and when the conductive shaft rotates, the conductive spring is driven to approach or move away from the copper busbar.

[0065] The number of the abutting parts corresponds to the number of the copper busbars one by one. This arrangement increases the contact points between the copper busbars and the conductive wheel, improves the uniformity of tinning on the copper busbars, and avoids the problem of excessive current and blackening of the surface of the copper busbars.

[0066] As a preferred embodiment, the conveying device of the copper busbar further includes a second rubber wheel 8, which is fixedly connected to the conductive rotating shaft 11 and can be close to or away from the first rubber wheel as the conductive rotating shaft 11 rotates, and the second rubber wheel 8 can abut against the surface of the copper busbar 5 as the conductive rotating shaft rotates. In this embodiment, the material of the second rubber wheel can be but not limited to copper. When the second rubber wheel 8 is pressed onto the copper busbar, the second rubber wheel 8 and the first rubber wheel 7 correspond to each other. The second rubber wheel can not only press the copper busbar to increase friction and provide motive force for the movement of the copper busbar, but also can achieve the effect of conducting electricity, further ensuring that the copper busbar is connected to the power supply.

[0067] Optional implementations, such as Figure 6As shown, the second rubber wheel includes a copper roller shaft 8-2 and a second bearing 8-4 sleeved on the copper roller shaft near both ends thereof, a second runner 8-5 is fixed on the outer surface of the bearing, and an O-ring 8-1 is respectively arranged between the second bearing 8-4 and the copper roller shaft 8-2 near the copper roller shaft, and the O-ring 8-1 is used for sealing. The O-ring 8-1, the copper roller shaft 8-2 and the second runner 8-5 enclose a closed space for filling a conductive fluid 8-3, and the current from the copper roller shaft is transmitted to the second runner 8-5 through the conductive fluid, and is transmitted to the copper busbar 9 through the second runner 8-5; the conductive fluid can be a low melting point alloy, such as an indium gallium alloy or an indium gallium tin alloy. In one embodiment, the conductive fluid can be an indium gallium alloy with a mass ratio of 14:86, and in another embodiment, the conductive fluid can be a gallium indium tin alloy with a mass ratio of 68:22:10. In this embodiment, by arranging the conductive fluid in the second rubber wheel, the current can be better transmitted to the copper busbar.

[0068] As a most preferred embodiment, Figure 1-4 As shown, the transmission device of the copper busbar also includes a conductive support assembly, which includes a first conductive support member 10 and a second conductive support member 9. The first conductive support member 10 is arranged on the conductive shaft near the two ends thereof, and is used to fix the two ends of the second rubber wheel 8; the second conductive support member 9 is connected to the first conductive support members at the two ends of the second rubber wheel and fixed thereon, and an elastic conductive member assembly is arranged on the second conductive support member, the first conductive support member is perpendicular to the conductive shaft, and the second conductive support member is perpendicular to the first conductive support member. By arranging the conductive support member, the stress on the conductive shaft can be reduced while conducting electricity. In this embodiment, the conductive support assembly can be but not limited to copper.

[0069] Furthermore, the two ends of the second conductive support member 9 extend toward the first conductive support member 10 to form two spacing segments, and the second conductive support member 9 is vertically connected to the first conductive support member 10 through the two spacing segments, so as to ensure that there is a distance between the second rubber wheel 8 and the conductive spring sheet 6, and they do not interfere with each other.

[0070] In this embodiment, the conductive shaft 11 and the elastic conductive component assembly are located on the same side of the copper busbar 5, and the first rubber wheel 7 is located on the other side of the copper busbar 5, which is different from the conductive shaft 11. At the same time, the conductive shaft 11 is arranged in parallel with the first rubber wheel 7.

[0071] Optionally, the conductive spring clip includes a first connecting segment 6-1 and a second connecting segment 6-2 connected in sequence, and the conductive spring clip 6 is connected to the conductive wheel 4 through the second connecting segment 6-2. When the conductive wheel abuts against the corresponding copper busbar surface, the second connecting segment is parallel to the copper busbar, and the first connecting end is inclined relative to the copper busbar. By having the second connecting segment parallel to the copper busbar, it can be ensured that the conductive wheel can better contact the copper busbar and improve conductivity.

[0072] The working principle of the copper busbar transmission device is as follows: when the copper busbar is placed on the first rubber wheel and begins to be transmitted, after the cylinder 12 moves, the cylinder force plate 13 drives the conductive shaft to rotate, so that the conductive wheel 4 first contacts the copper busbar, and then the second rubber wheel presses the copper busbar. At this time, the conductive wheel has the deformation pressure of the conductive spring sheet, so that the conductive wheel and the copper busbar are leveled, and the conductive wheel and the copper busbar are in large-area contact, thereby connecting the copper busbar to the power supply. The second rubber wheel presses the copper busbar to increase friction and provide power for the copper busbar to move.

[0073] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A copper busbar transmission device, characterized in that: include, A first rubber wheel, used for conveying the copper busbar placed on the first rubber wheel; The conductive rotating shaft is spaced apart from the first rubber wheel; The elastic conductive component assembly is arranged on the conductive rotating shaft and has a plurality of abutment portions that can be moved closer to or away from the first rubber wheel as the conductive rotating shaft rotates, and the abutment portions can abut against the corresponding copper busbar surface as the conductive rotating shaft rotates; the elastic conductive component assembly includes a plurality of conductive spring sheets arranged on the conductive rotating shaft at intervals along the axial direction, and a conductive wheel arranged at the end of the conductive spring sheet and serving as the abutment portion; The conductive rotating shaft is arranged parallel to the first rubber wheel; The conductive spring is perpendicular to the conductive rotating shaft; The number of the abutment portions corresponds one-to-one to the number of the copper busbars; The second rubber wheel is fixedly connected to the conductive rotating shaft and can be close to or away from the first rubber wheel as the conductive rotating shaft rotates. The second rubber wheel can abut against the surface of the copper busbar as the conductive rotating shaft rotates.

2. The copper busbar transmission device according to claim 1, characterized in that: The conductive wheel is filled with conductive fluid.

3. The copper busbar transmission device according to claim 2, characterized in that: The conductive fluid is a low melting point alloy.

4. The copper busbar transmission device according to claim 3, characterized in that: The low melting point alloy is an indium gallium alloy or an indium gallium tin alloy.

5. The copper busbar transmission device according to any one of claims 1 to 4, characterized in that: It also includes a conductive support assembly, which includes a first conductive support member and a second conductive support member, wherein the first conductive support member is disposed on the conductive shaft near both ends thereof and is used to fix both ends of the second rubber wheel; The second conductive support member is connected to the first conductive support members at both ends of the second rubber wheel and fixed thereon, and an elastic conductive member assembly is arranged on the second conductive support member.

6. The copper busbar transmission device according to claim 5, characterized in that: The first conductive support member and the second conductive support member are both made of conductive metal.

7. The copper busbar transmission device according to claim 6, characterized in that: The first conductive support member is perpendicular to the conductive rotation axis; The second conductive support member is perpendicular to the first conductive support member.

8. The copper busbar transmission device according to claim 1, characterized in that: Also includes, A first power unit is fixedly connected to the conductive shaft, and the conductive shaft is driven to rotate by the first power unit; A power source connected to the conductive shaft; The second power unit is connected to the first rubber wheel, and the first rubber wheel is driven to rotate by the second power unit.

9. The copper busbar transmission device according to claim 8, characterized in that: The first power unit is a cylinder; The second power unit is a reduction motor, which drives the first rubber wheel to rotate through gears that mesh with each other.

10. The copper busbar transmission device according to claim 1, characterized in that: The conductive spring piece includes a first connecting section and a second connecting section connected in sequence. When the abutting portion abuts against the surface of the corresponding copper busbar, the first connecting section is inclined relative to the copper busbar, and the second connecting section is parallel to the copper busbar.

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