Clamping type horizontal electroplating device

Abstract

The utility model provides a clamping type horizontal electroplating device. The clamping type horizontal electroplating device comprises an electroplating bath, an anode, a transmission roller, a pressing plate, a cathode conductive brush, a base plate, a sliding block conductive seat, a rack sliding block and a clamping assembly, according to the clamping type horizontal electroplating device disclosed by the utility model, the cathode conductive brush, the sliding block conductive seat and the electric contact are used as the cathode of the battery piece, and a cathode roller isolation groove is not required to be arranged, so that the occupied area of equipment can be reduced, and the cost is reduced; through cooperation of the pressing plate, the cathode conductive brush and the clamping structure, clamping and power supply of the battery piece can be achieved, so that the quality of a plating layer is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electroplating, and relates to a clamping type horizontal electroplating device. Background Art

[0002] In the solar energy industry, the horizontal electroplating process of battery wafers is widely used, such as BC (Back Contact) battery wafers. Since the conductive surface and the electroplating surface of the BC battery wafer are the same surface, electroplating can be achieved only when the battery wafer contacts the electroplating solution and the conductor at the same time.

[0003] In the current BC horizontal electroplating process, most electroplating devices use conductive rollers connected in parallel to the negative electrode of a constant current source as the cathode, and titanium rods are connected to the positive electrode of the constant current source and placed in the electroplating solution as insoluble anodes. When the battery wafer is transported in the tank, the battery wafer contacts the electroplating solution and the conductive roller at the same time, so that the conductive roller, the electroplating solution, the titanium rod and the battery wafer form a closed circuit to achieve electroplating.

[0004] However, the existing horizontal electroplating devices have many problems of application limitations during the electroplating process, such as:

[0005] First, the conductive roller needs to be placed in an isolation tank to be isolated from the electroplating solution. Only when the battery wafer contacts the electroplating solution can a closed circuit be formed for electroplating. Since there is no electroplating solution in the isolation tank, the area where the isolation tank is located cannot be electroplated, which will shorten the effective electroplating distance in the electroplating tank of the same length. This will lead to an increase in the number of electroplating tanks, making the overall length of the equipment longer and occupying more factory space.

[0006] Second, once the number of electroplating tanks increases, more components such as constant current sources, insoluble anodes and pumps need to be equipped, increasing the additional cost.

[0007] Therefore, it is necessary to provide a clamping type horizontal electroplating device. Summary of the Utility Model

[0008] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a clamping type horizontal electroplating device for solving the above-mentioned series of application limitation problems existing in the horizontal electroplating device during the electroplating process in the prior art.

[0009] To achieve the above purpose and other related purposes, the present utility model provides a clamping type horizontal electroplating device, and the clamping type horizontal electroplating device includes:

[0010] An electroplating tank;

[0011] An anode, the anode is arranged in the electroplating tank;

[0012] A transfer roller, which is arranged in the electroplating tank for transferring the battery wafers;

[0013] A pressing plate, which is located above the electroplating tank;

[0014] A cathode conducting brush, which is located above the electroplating tank;

[0015] A clamping structure, which includes:

[0016] A substrate, which has a through groove for carrying the battery wafers, and electrical contacts are arranged at the edge of the through groove to contact the lower surface of the battery wafers;

[0017] A slider conducting seat, which is fixed on the substrate, and a slide rail is arranged on the slider conducting seat;

[0018] A rack slider, which is connected to the slider conducting seat through the slide rail, an upward protruding contact rod is arranged on the rack slider, and an elastic member is arranged vertically between the rack slider and the substrate;

[0019] A clamping assembly, which is fixed on the substrate and includes a gear transmission member and a pressing member, the gear transmission member meshes with the rack slider, and the pressing member is connected to the gear transmission member;

[0020] When the substrate is transferred to the area where the pressing plate is located, the contact rod contacts the pressing plate and presses down the elastic member so that the rack slider moves downward, and the top surface of the slider conducting seat is electrically connected to the cathode conducting brush, and the slider conducting seat is electrically connected to the electrical contacts; when the substrate is transferred beyond the area where the pressing plate is located, the elastic member drives the rack slider to move upward and reset; wherein, the up and down displacement of the rack slider drives the gear transmission member to rotate to drive the opening and closing operations of the pressing member.

[0021] Optionally, the gear transmission member includes a gear, a driving wheel, a transmission belt, a driven wheel and a connecting shaft. Among them, the gear is connected to the driving wheel, the transmission belt connects the driving wheel and the driven wheel, the driven wheel is connected to the connecting shaft, the connecting shaft is connected to the pressing member, and the gear meshes with the rack slider, and the gear drives the driving wheel, the transmission belt, the driven wheel and the connecting shaft to rotate to drive the opening and closing operations of the pressing member.

[0022] Optionally, the clamping structure is an axisymmetric structure.

[0023] Optionally, the clamping structure is a centrosymmetric structure.

[0024] Optionally, elastic clamping ends are provided on the pressing member, and contact the upper surface of the battery cell through the elastic clamping ends.

[0025] Optionally, the elastic member includes a spring.

[0026] Optionally, the slider conductive seat, the substrate, and the electrical contact are electrically connected, and surface passivation layers are provided on the surfaces of the slider conductive seat, the substrate, and the electrical contact.

[0027] Optionally, the substrate includes N>1 through grooves, and the through grooves are arranged in a strip shape or in a matrix.

[0028] Optionally, the cathode conductive brush includes a cathode conductive brush comb tooth portion; an inclined angle is provided between the cathode conductive brush comb tooth portion and the horizontal plane.

[0029] Optionally, a plurality of the transmission rollers are interconnected through a roller transmission belt.

[0030] As described above, the clamping type horizontal electroplating device of the present utility model includes the electroplating tank, the anode, the transmission rollers, the pressing plate, the cathode conductive brush, the substrate, the slider conductive seat, the rack slider, and the clamping assembly; the clamping type horizontal electroplating device of the present utility model uses the cathode conductive brush, the slider conductive seat, and the electrical contact as the cathode of the battery cell, without the need to provide a cathode roller isolation groove, which can reduce the floor area of the equipment and lower the cost; through the cooperation of the pressing plate, the cathode conductive brush, and the clamping structure, the clamping and power supply of the battery cell can be realized to effectively improve the coating quality. Description of the Drawings

[0031] Figure 1 It shows a schematic structural diagram of the clamping type horizontal electroplating device in an embodiment of the present utility model.

[0032] Figure 2 It shows a schematic structural diagram of the clamping structure in a closed state in an embodiment of the present utility model.

[0033] Figure 3 It shows a schematic structural diagram of the clamping structure in an open state in an embodiment of the present utility model.

[0034] Description of the Reference Numerals

[0035] 100 Electroplating tank

[0036] 110 Water washing tank

[0037] 200 Anode

[0038] 310 Transmission rollers

[0039] 320 Roller conveyor belt

[0040] 400 Pressing plate

[0041] 500 Cathode conductive brush

[0042] 600 Substrate

[0043] 610 Through groove

[0044] 620 Electrical contact

[0045] 710 Slide conductive seat

[0046] 720 Rack slider

[0047] 721 Contact rod

[0048] 722 Elastic member

[0049] 810 Gear

[0050] 820 Driving wheel

[0051] 830 Conveyor belt

[0052] 840 Driven wheel

[0053] 850 Connecting shaft

[0054] 860 Pressing member

[0055] 861 Elastic clamping end

[0056] 870 Pressing member support seat

[0057] 880 Bearing seat

[0058] 900 Manipulator Detailed implementation manners

[0059] The following uses specific specific examples to illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0060] It should be noted that the drawings provided in this embodiment only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components during actual implementation. The type, quantity, and ratio of each component during actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0061] As Figures 1 to 3 , this embodiment provides a clamping type horizontal electroplating device. The clamping type horizontal electroplating device includes an electroplating tank 100, an anode 200, a transmission roller 310, a pressing plate 400, a cathode conducting brush 500, and a clamping structure. The clamping structure includes a substrate 600, a slider conducting seat 710, a rack slider 720, and a clamping assembly. Among them, the anode 200 is disposed in the electroplating tank 100; the transmission roller 310 is disposed in the electroplating tank 100 for transmitting a battery cell (not shown); the pressing plate 400 is located above the electroplating tank 100; the cathode conducting brush 500 is located above the electroplating tank 100; the substrate 600 has a through groove 610 for carrying the battery cell, and electrical contacts 620 are provided at the edge of the through groove 610 to contact the lower surface of the battery cell; the slider conducting seat 710 is fixed on the substrate 600, and a slide rail is provided on the slider conducting seat 710; the rack slider 720 is connected to the slider conducting seat 710 through the slide rail, and a contact rod 721 protruding upward is provided on the rack slider 720, and an elastic member 722 is provided between the rack slider 720 and the substrate 600 in the vertical direction; the clamping assembly is fixed on the substrate 600, and the clamping assembly includes a gear transmission member and a pressing member 860, the gear transmission member meshes with the rack slider 720, and the pressing member 860 is connected to the gear transmission member.

[0062] When the substrate 600 is transmitted to the area where the pressing plate 400 is located, that is, the electroplating area, the contact rod 721 contacts the pressing plate 400 and presses down the elastic member 722 to cause the rack slider 720 to move downward, and the top surface of the slider conducting seat 710 is electrically connected to the cathode conducting brush 500, and the slider conducting seat 710 is electrically connected to the electrical contacts 620; when the substrate 600 is transmitted beyond the area where the pressing plate 400 is located, that is, the non - electroplating area, the elastic member 722 drives the rack slider 720 to move upward and reset; among them, the up - and - down displacement of the rack slider 720 drives the gear transmission member to rotate to drive the opening and closing operations of the pressing member 860.

[0063] In the clamping type horizontal electroplating device of this embodiment, the cathode conducting brush 500, the slider conducting seat 710, and the electrical contacts 620 are used as the cathode of the battery cell. There is no need to set a cathode roller isolation groove, which can reduce the floor area of the equipment and lower the cost; through the cooperation of the pressing plate 400, the cathode conducting brush 500, and the clamping structure, the clamping and power supply of the battery cell can be realized to effectively improve the plating quality.

[0064] Specifically, the electroplating tank 100 is filled with an electroplating solution for electroplating. There is no excessive limitation on the size of the electroplating tank 100 here. The type of the electroplating solution can also be selected as needed and is not limited here. The anode 200 is disposed in the electroplating tank 100, and the anode 200 may include, for example, a titanium rod or a titanium mesh. The transfer roller 310 is disposed in the electroplating tank 100. The transfer roller 310 is used to provide transfer power to transfer the cell, and the upper surface of the transfer roller 310 is immersed in the electroplating solution. The substrate 600 is used as a carrier frame. The through groove 610 can expose the back surface of the carried cell, so that the cell on the transfer roller 310 can contact the electroplating solution to perform the electroplating operation. Among them, the pressing member 860 can be fixed to the substrate 600 through, for example, a pressing member support seat 870, and the clamping assembly can be fixed to the substrate 600 through, for example, a bearing seat 880. However, the fixing methods of the pressing member 860 and the clamping assembly are not limited thereto.

[0065] Such as Figure 1 , a water washing tank 110 can be provided in the front and rear areas where the electroplating tank 100 is located, and a manipulator 900 can be provided in the area where the water washing tank 110 is located to take / place the cell into / from the through groove 610. Of course, the substrate 600 or the substrate 600 carrying the cell can also be taken / placed in the area of the water washing tank 110 through a suitable manipulator 900 to realize the recycling of the substrate 600. There is no limitation on the specific type of the manipulator 900 here.

[0066] Among them, refer to Figure 1When the substrate 600 carrying the battery cell is transferred to the area where the electroplating tank 100 is located, the protruding contact rod 721 is squeezed by the fixed-position pressing plate 400, wherein the pressing plate 400 can be fixed on the electroplating tank 100 but is not limited thereto. Since there is an elastic member 722 arranged vertically between the rack slider 720 and the substrate 600, the contact rod 721, after being squeezed by the pressing plate 400, will cause the rack slider 720 to move downward and compress the elastic member 722, thereby realizing the closing operation of the pressing member 860. Similarly, when the substrate 600 carrying the battery cell is transferred to the area where the electroplating tank 100 is located, the upper surface of the slider conductive seat 710 can be electrically connected to the cathode conductive brush 500 having a fixed position, wherein the cathode conductive brush 500 can be fixed on the electroplating tank 100 but is not limited to this, so that the electrical contact 620 that can be electrically connected to the slider conductive seat 710 is converted into a cathode contact to contact the back side of the battery cell, so that a closed circuit can be achieved through the electroplating solution and the anode 200 to electroplate the battery cell.

[0067] It can be understood that when the pressing plate 400 and the cathode conductive brush 500 are arranged, the two need to be staggered to avoid affecting the transmission and power supply of the substrate 600 .

[0068] Among them, it is preferred that the elastic member 722 is a spring, and the spring can be fixed on the rack slider 720 and / or the substrate 600. The specific type and installation method of the elastic member 722 are not excessively restricted here.

[0069] In this embodiment, in order to reduce the impact stress, it is preferred that the pressing plate 400 and the cathode conductive brush 500 both adopt an inverted trapezoidal shape, but the shapes of the pressing plate 400 and the cathode conductive brush 500 are not limited thereto and are not overly limited here.

[0070] In addition, it is preferred to set a limit piece on the slider conductive seat 710 to prevent the rack slider 720 from sliding out of the slide rail on the slider conductive seat 710. The specific type and setting position of the limit piece can be selected according to needs. For example, the limit piece can be integrally formed with the slider conductive seat 710. Of course, according to needs, the limit piece and the slider conductive seat 710 can also be assembled structures, which is not overly limited here.

[0071] In this embodiment, for the convenience of current control, it preferably includes multiple pairs of the cathode conductive brushes 500 and the anodes 200 arranged in an up-and-down corresponding manner. Among them, the distance between adjacent cathode conductive brushes 500 only needs to be less than the power contact surface of the slider conductive base 710, so that the slider conductive base 710 can be continuously charged even at the gap.

[0072] As an example, the gear transmission member may include a gear 810, a driving wheel 820, a transmission belt 830, a driven wheel 840, and a connecting shaft 850. Among them, the gear 810 is connected to the driving wheel 820, the transmission belt 830 connects the driving wheel 820 and the driven wheel 840, the driven wheel 840 is connected to the connecting shaft 850, the connecting shaft 850 is connected to the pressing member 860, and the gear 810 meshes with the rack slider 720. The gear 810 drives the driving wheel 820, the transmission belt 830, the driven wheel 840, and the connecting shaft 850 to rotate to drive the pressing member 860 to perform opening and closing operations.

[0073] Specifically, referring to Figure 2 and Figure 3 , in this embodiment, the gear transmission member is set to include the structure of the gear 810, the driving wheel 820, the transmission belt 830, the driven wheel 840, and the connecting shaft 850, so as to better transmit the operating power to the pressing member 860, thereby driving the pressing member 860 to perform opening and closing operations. However, the specific structure of the gear transmission member is not limited thereto. For example, a pull rod structure can also be used to replace the transmission belt structure composed of the driving wheel 820, the transmission belt 830, and the driven wheel 840, etc., and no excessive restrictions are made here.

[0074] As an example, it is preferred that the clamping structure is an axisymmetric structure.

[0075] Specifically, as Figure 2 shown in the perspective view of the clamping structure, both ends of the substrate 600 are provided with the slider conductive base 710 and its supporting components, thereby forming axisymmetry along the X direction to improve the stability of power transmission and power transmission. However, the setting of the clamping structure is not limited thereto.

[0076] Furthermore, in this embodiment, the clamping structure is preferably a centrosymmetric structure, that is, as Figure 2 shown, the clamping structure is a centrosymmetric structure that is symmetric along both the X direction and the Y direction to further improve the stability of its power transmission and power transmission. However, the setting of the clamping structure is not limited thereto.

[0077] As an example, an elastic clamping end 861 is provided on the pressing member 860, and the elastic clamping end 861 contacts the upper surface of the battery cell.

[0078] Specifically, as Figure 3 , in this embodiment, the elastic clamping end 861 is provided on the pressing member 860, so that the elastic clamping end 861 with elasticity can reduce the damage to the clamped battery cell.

[0079] Among them, it is preferred that the elastic clamping end 861 and the electrical contact 620 are arranged vertically corresponding to each other to improve the clamping stability. The number and distribution of the elastic clamping end 861 and the electrical contact 620 provided around the same through groove 610 are not overly restricted here, and an equally spaced distribution is preferred.

[0080] As an example, the slider conductive base 710, the substrate 600, and the electrical contact 620 are electrically connected, and surface passivation layers are provided on the surfaces of the slider conductive base 710, the substrate 600, and the electrical contact 620.

[0081] Specifically, in this embodiment, the slider conductive base 710, the substrate 600, and the electrical contact 620 are all made of conductive materials, such as titanium metal, etc., for easy electrical connection. And to reduce surface electroplating, only the parts that need to be electrically connected are exposed in this embodiment, and surface passivation layers are preferably provided on the remaining surfaces of the slider conductive base 710, the substrate 600, and the electrical contact 620.

[0082] Among them, the surface passivation layer may include, for example, a PTFE (polytetrafluoroethylene) layer with relatively stable performance, high temperature resistance, and corrosion resistance, etc., but the type of the passivation layer is not limited thereto.

[0083] As an example, the substrate 600 includes N > 1 through grooves 610, and the through grooves 610 are arranged in a strip shape or in a matrix.

[0084] Specifically, as Figure 2 In, in this embodiment, N = 6 through grooves 610 are provided on the substrate 600, so that 6 battery cells can be electroplated synchronously, but the number of the through grooves 610 provided on the substrate 600 is not limited thereto, and N can also be, for example, 1, 2, 3, 5, 10, etc. Among them, as Figure 2 shown, the 6 through grooves 610 are distributed in a strip shape along the Y direction, but it is not limited thereto. For example, according to needs, multiple through grooves 610 arranged in a matrix can also be provided on the substrate 600, that is, multiple through grooves 610 distributed in a strip shape can be provided along the X direction to form the through grooves 610 arranged in a matrix on the XY plane to improve the process efficiency.

[0085] As an example, the cathode conducting brush 500 includes a cathode conducting brush comb tooth portion (not shown), and preferably, there is an inclined angle between the cathode conducting brush comb tooth portion and the horizontal plane.

[0086] Specifically, when adjusting the cathode conducting brush comb tooth portion to have the inclined angle with the horizontal plane, it can reduce the scratching of the cathode conducting brush comb tooth portion on the slider conducting seat 710 when the cathode conducting brush comb tooth portion contacts the slider conducting seat 710; it can increase the contact area between the cathode conducting brush comb tooth portion and the slider conducting seat 710 and reduce the contact resistance; it can reduce the resistance of the cathode conducting brush comb tooth portion to the slider conducting seat 710; in the inclined state, it can reduce the deformation amount of the cathode conducting brush comb tooth portion, make the cathode conducting brush comb tooth portion easy to return to the original state, and can extend the service life of the cathode conducting brush 500.

[0087] As an example, a plurality of the transfer rollers 310 are interconnected by a roller conveyor belt 320.

[0088] Specifically, as Figure 1 , to improve the transfer stability of the transfer rollers 310 to the clamping structure, it is preferred that the transfer rollers 310 are interconnected by the roller conveyor belt 320, wherein the roller conveyor belt 320 may include corrosion-resistant chains, chain belts, etc. Regarding the type of the roller conveyor belt 320, no excessive limitation is made here.

[0089] In summary, the clamping type horizontal electroplating device of the present invention includes the electroplating tank, the anode, the transfer rollers, the pressing plate, the cathode conducting brush, the substrate, the slider conducting seat, the rack slider and the clamping assembly; the clamping type horizontal electroplating device of the present invention uses the cathode conducting brush, the slider conducting seat and the electrical contact point as the cathode of the battery cell, without setting a cathode roller isolation groove, which can reduce the floor area of the equipment and lower the cost; through the cooperation of the pressing plate, the cathode conducting brush and the clamping structure, the clamping and power supply of the battery cell can be realized to effectively improve the coating quality.

[0090] The above embodiments only illustratively explain the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A clamping horizontal electroplating device, characterized in that: The clamping horizontal electroplating device comprises: Electroplating tanks; an anode, the anode being disposed in the electroplating tank; A transmission roller, which is disposed in the electroplating tank and is used to transmit the battery sheet; A pressing plate, the pressing plate is located above the electroplating tank; A cathode conductive brush, wherein the cathode conductive brush is located above the electroplating tank; A clamping structure, the clamping structure comprising: A substrate, wherein the substrate has a through groove for carrying the battery cell, and an electrical contact is provided at the edge of the through groove to contact the lower surface of the battery cell; A slider conductive seat, the slider conductive seat is fixed on the substrate, and a slide rail is arranged on the slider conductive seat; A rack slider, wherein the rack slider is connected to the slider conductive seat through the slide rail, an upwardly protruding contact rod is provided on the rack slider, and an elastic member is vertically arranged between the rack slider and the base plate; A clamping assembly, the clamping assembly is fixed on the base plate, and comprises a gear transmission member and a pressing member, the gear transmission member is meshed with the rack slider, and the pressing member is connected to the gear transmission member; When the substrate is transmitted to the area where the pressure plate is located, the contact rod contacts the pressure plate and presses down the elastic member to move the rack slider downward, and the top surface of the slider conductive seat is electrically connected to the cathode conductive brush, and the slider conductive seat is electrically connected to the electrical contact; when the substrate is transmitted beyond the area where the pressure plate is located, the elastic member drives the rack slider to move up and reset; wherein, the up and down displacement of the rack slider drives the gear transmission member to rotate to drive the opening and closing operations of the pressing member.

2. The clamping horizontal electroplating device according to claim 1, characterized in that: The gear transmission component includes a gear, a driving wheel, a transmission belt, a driven wheel and a connecting shaft, wherein the gear is connected to the driving wheel, the transmission belt connects the driving wheel and the driven wheel, the driven wheel is connected to the connecting shaft, the connecting shaft is connected to the pressing piece, and the gear is meshed with the rack slider, and the gear drives the driving wheel, the transmission belt, the driven wheel and the connecting shaft to rotate to drive the opening and closing operations of the pressing piece.

3. The clamping type horizontal electroplating device according to claim 1, characterized in that: The clamping structure is an axisymmetric structure.

4. The clamping type horizontal electroplating device according to claim 1, characterized in that: The clamping structure is a centrally symmetrical structure.

5. The clamping horizontal electroplating device according to claim 1, characterized in that: The pressing piece is provided with an elastic clamping end head, and contacts with the upper surface of the battery sheet through the elastic clamping end head.

6. The clamping type horizontal electroplating device according to claim 1, characterized in that: The elastic member includes a spring.

7. The clamping type horizontal electroplating device according to claim 1, characterized in that: The slider conductive seat, the substrate and the electrical contact are electrically connected, and the surfaces of the slider conductive seat, the substrate and the electrical contact are all provided with a surface passivation layer.

8. The clamping horizontal electroplating device according to claim 1, characterized in that: The substrate includes N>1 through grooves, and the through grooves are arranged in strips or in a matrix.

9. The clamping type horizontal electroplating device according to claim 1, characterized in that: The cathode conductive brush comprises a cathode conductive brush comb-tooth portion; an inclined angle is formed between the cathode conductive brush comb-tooth portion and a horizontal plane.

10. The clamping type horizontal electroplating device according to claim 1, characterized in that: The plurality of transmission rollers are interconnected via roller transmission belts.

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