Battery piece chain type etching alkali back polishing device

Abstract

The invention provides a battery piece chain type etching alkali back polishing device which comprises a solution box, a mounting frame is arranged on the inner wall of the solution box in a sliding mode, a lifting assembly used for driving the mounting frame to move up and down is arranged on one side of the solution box, and a plurality of rolling shafts are rotationally arranged on the inner wall of the mounting frame. A supporting seat is fixedly connected to one side of the inner wall of the mounting frame, a mounting plate is mounted on one side of the top of the mounting frame, the lifting assembly comprises a box body arranged on one side of the solution box, a supporting shaft is fixedly connected to the inner wall of the box body, the supporting shaft is sleeved with a half gear, and a toothed plate is connected to one side of the half gear in a meshed mode. A connecting rod is fixedly connected to one side of the toothed plate, and sliding grooves matched with the connecting rod for use are formed in one side of the solution box and one side of the box body. The battery piece chain type etching alkali back polishing device has the advantage that the rolling shaft in the mounting frame can be replaced conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of battery cell production equipment, and in particular to a battery cell chain etching alkali back polishing device. Background Art

[0002] Solar cells can directly convert sunlight into electrical energy, and its power generation principle is the photovoltaic effect of PN junction. At present, conventional battery processes are limited by technology, and there is not much room for improvement in conversion efficiency. Battery conversion efficiency must rely on upgrading existing technologies and new battery structure types. At present, PERC battery technology in the industry is undoubtedly the most effective means to improve efficiency, and one of the core technologies of PERC cells is the back-polishing process. The requirements for PERC battery back-polishing are that the entire velvet surface on the back of the cell is smooth, consistent, and has high reflectivity. Back-polishing technology is to polish the back of the silicon wafer to reduce back recombination and improve the optical efficiency of solar silicon wafers to enhance the absorption of long-wavelength light, thereby improving the photoelectric conversion efficiency of solar cells, and can be superimposed with the next step of solar cell technology, with the advantages of good compatibility.

[0003] A polysilicon cell chain back-polishing device is disclosed in the patent document with publication number CN109285772B, which includes a first etching device, a second etching device, a liquid roller and a polishing roller. In the process of implementing the technical solution, the inventor found that there are at least the following problems in the prior art:

[0004] The above-mentioned polysilicon cell chain back-polishing device can improve the polishing effect and ensure continuous production. However, since this polishing device requires the liquid roller and the polishing roller to contact the acidic or alkaline liquid during use, the roller is easily corroded and damaged after long-term use. At this time, the roller needs to be replaced. When the roller is replaced, the solution in the entire container needs to be emptied and then replaced. Sometimes, only one or several of them need to be replaced, which greatly affects the polishing operation and increases production costs. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a battery cell chain etching alkaline back polishing device, comprising a solution box, a mounting frame is slidably arranged on the inner wall of the solution box, a lifting assembly for driving the mounting frame to move up and down is arranged on one side of the solution box, a plurality of rollers are rotatably arranged on the inner wall of the mounting frame, a support seat is fixedly connected to one side of the inner wall of the mounting frame, and a mounting plate is installed on one side of the top of the mounting frame.

[0006] Preferably, the lifting assembly includes a box body arranged on one side of the solution tank, the inner wall of the box body is fixedly connected to a support shaft, a half gear is sleeved on the support shaft, one side of the half gear is meshingly connected to a tooth plate, one side of the tooth plate is fixedly connected to a connecting rod, the solution tank and one side of the box body are both provided with a sliding groove used in conjunction with the connecting rod, the other side of the half gear is fixedly connected to a handle, and one side of the connecting rod is fixedly connected to one side of the mounting frame.

[0007] Preferably, a mounting seat is provided on the top of the support seat, and positioning bolts are provided on both sides of the mounting seat, and the outer sides of the positioning bolts are threadedly connected to the top of the support seat.

[0008] Preferably, a first mounting groove for use with a roller is opened on one side of the mounting frame, and the outer side of the roller is rotatably connected to the inner wall of the first mounting groove.

[0009] Preferably, a second mounting groove for use with a roller is provided at the bottom of the mounting plate, and the outer side of the roller is rotatably connected to the inner wall of the second mounting groove.

[0010] Preferably, a fixing bolt is provided on the top of the mounting plate, and the outer side of the fixing bolt is threadedly connected to the inner wall of the mounting frame.

[0011] Preferably, sliders are fixedly connected to both sides of the installation frame, and movable grooves for use with the sliders are provided on both sides of the inner wall of the solution box.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The battery cell chain etching alkali back polishing device has two ends of a roller respectively placed on a support seat and an inner wall of a mounting frame to support the roller. The roller is installed inside the mounting frame through a mounting plate to limit the position of the roller. The mounting frame is driven to rise and fall in the solution box through a lifting component to lift the roller out of the solution in the solution box. The roller can then be replaced by removing the mounting plate, thereby achieving the effect of facilitating replacement of the roller inside the mounting frame.

[0014] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description and the drawings.

[0015] The technical solution of the present application is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of the battery cell chain etching alkali back polishing device provided by the present invention;

[0018] Figure 2 It is a structural schematic diagram of the lifting assembly shown in the present invention;

[0019] Figure 3 It is a structural schematic diagram of the installation frame shown in the present invention;

[0020] Figure 4 It is a structural schematic diagram of the support seat and the mounting seat shown in the present invention;

[0021] Figure 5 It is a schematic structural diagram of the solution box and the mounting plate shown in the present invention.

[0022] Numbers in the figure: 1. Solution tank; 2. Mounting frame; 3. Lifting assembly; 31. Box body; 32. Support shaft; 33. Half gear; 34. Tooth plate; 35. Connecting rod; 36. Slide groove; 37. Handle; 4. Roller; 5. Support seat; 6. Mounting plate; 7. Mounting seat; 8. Positioning bolt; 9. First mounting groove; 10. Second mounting groove; 11. Fixing bolt; 12. Slider; 13. Moving groove. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] See also Figure 1-Figure 5 A battery cell chain etching alkaline back polishing device comprises a solution box 1, a mounting frame 2 is slidably arranged on the inner wall of the solution box 1, a lifting component 3 for driving the mounting frame 2 to move up and down is arranged on one side of the solution box 1, a plurality of rollers 4 are rotatably arranged on the inner wall of the mounting frame 2, a support seat 5 is fixedly connected to one side of the inner wall of the mounting frame 2, and a mounting plate 6 is installed on one side of the top of the mounting frame 2.

[0028] The two ends of the roller 4 are respectively placed on the support seat 5 and the inner wall of the mounting frame 2 to support the roller 4. The roller 4 is installed inside the mounting frame 2 through the mounting plate 6 to limit the roller 4. The mounting frame 2 is driven to rise and fall in the solution tank 1 through the lifting component 3, so that the roller 4 is lifted above the solution in the solution tank 1, and the roller 4 can be replaced by removing the mounting plate 6.

[0029] In the specific implementation process, Figure 2 As shown, the lifting assembly 3 includes a box body 31 arranged on one side of the solution tank 1, a support shaft 32 is fixedly connected to the inner wall of the box body 31, a half gear 33 is sleeved on the support shaft 32, a tooth plate 34 is meshedly connected to one side of the half gear 33, a connecting rod 35 is fixedly connected to one side of the tooth plate 34, a slide groove 36 used in conjunction with the connecting rod 35 is provided on one side of the solution tank 1 and the box body 31, a handle 37 is fixedly connected to the other side of the half gear 33, and one side of the connecting rod 35 is fixedly connected to one side of the mounting frame 2.

[0030] The half gear 33 is pressed down by the handle 37, and the half gear 33 rotates upward under the support of the support shaft 32, so that the tooth plate 34 moves up. When the tooth plate 34 moves up, it drives the connecting rod 35 to move up in the slide groove 36, and then drives the installation frame 2 to rise, so as to facilitate the replacement of the roller 4 inside the installation frame 2. The connecting rod 35 slides in the slide groove 36 to guide and limit the connecting rod 35, thereby improving the stability of the connecting rod 35 when it is raised or lowered.

[0031] A mounting seat 7 is provided on the top of the support seat 5, and positioning bolts 8 are provided on both sides of the mounting seat 7. The outer side of the positioning bolts 8 is threadedly connected to the top of the support seat 5. One end of the roller 4 is placed on the support seat 5, and the mounting seat 7 is installed on the top of the support seat 5 by the positioning bolts 8. One end of the roller 4 is limited to make the roller 4 more stable when rotating.

[0032] A first mounting groove 9 for use with the roller 4 is provided on one side of the mounting frame 2 , and the outer side of the roller 4 is rotatably connected to the inner wall of the first mounting groove 9 .

[0033] A second mounting groove 10 for use with the roller 4 is provided at the bottom of the mounting plate 6 , and the outer side of the roller 4 is rotatably connected to the inner wall of the second mounting groove 10 .

[0034] The other end of the roller 4 is placed in the first mounting groove 9 opened inside the mounting frame 2 to support the other end of the roller 4, and is installed on the top of the mounting frame 2 through the mounting plate 6, and the other end of the roller 4 is limited by the second mounting groove 10, so that the roller 4 is more stable when rotating.

[0035] A fixing bolt 11 is provided on the top of the mounting plate 6. The outer side of the fixing bolt 11 is threadedly connected to the inner wall of the mounting frame 2. The mounting plate 6 is installed on the top of the mounting frame 2 through the fixing bolt 11, which facilitates the installation and removal of the mounting frame 2.

[0036] Slide blocks 12 are fixedly connected to both sides of the installation frame 2, and moving grooves 13 used in conjunction with the slide blocks 12 are provided on both sides of the inner wall of the solution box 1. When the installation frame 2 is lifted or lowered, the slide blocks 12 on both sides slide in the moving grooves 13 to guide and limit the installation frame 2, thereby improving the stability of the installation frame 2 when moving.

[0037] When in use, the two ends of the roller 4 are respectively placed on the support seat 5 and the inner wall of the mounting frame 2 to support the roller 4, and the roller 4 is installed inside the mounting frame 2 through the mounting plate 6 to limit the roller 4. The half gear 33 is pressed down by the handle 37, and the half gear 33 rotates upward under the support of the support shaft 32, so that the tooth plate 34 moves up. When the tooth plate 34 moves up, it drives the connecting rod 35 to move up in the slide groove 36, and then drives the mounting frame 2 to rise, so that the roller 4 is lifted above the solution in the solution tank 1, and then the roller 4 can be replaced by removing the mounting plate 6.

[0038] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0039] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0040] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A battery cell chain etching alkali back polishing device, characterized in that: The invention comprises a solution box (1), wherein an installation frame (2) is slidably arranged on the inner wall of the solution box (1), a lifting assembly (3) for driving the installation frame (2) to move up and down is arranged on one side of the solution box (1), a plurality of rollers (4) are rotatably arranged on the inner wall of the installation frame (2), a support seat (5) is fixedly connected to one side of the inner wall of the installation frame (2), and a mounting plate (6) is installed on one side of the top of the installation frame (2).

2. The battery cell chain etching and alkali back polishing device according to claim 1, characterized in that: The lifting assembly (3) comprises a box body (31) arranged on one side of the solution tank (1); a support shaft (32) is fixedly connected to the inner wall of the box body (31); a half gear (33) is sleeved on the support shaft (32); one side of the half gear (33) is meshingly connected to a toothed plate (34); one side of the toothed plate (34) is fixedly connected to a connecting rod (35); one side of the solution tank (1) and the box body (31) are both provided with a slide groove (36) for use with the connecting rod (35); the other side of the half gear (33) is fixedly connected to a handle (37); one side of the connecting rod (35) is fixedly connected to one side of the mounting frame (2).

3. The battery cell chain etching alkali back polishing device according to claim 1, characterized in that: A mounting seat (7) is arranged on the top of the support seat (5), positioning bolts (8) are arranged on both sides of the mounting seat (7), and the outer sides of the positioning bolts (8) are threadedly connected to the top of the support seat (5).

4. The battery cell chain etching and alkali back polishing device according to claim 1, characterized in that: A first installation groove (9) for use with the roller (4) is provided on one side of the installation frame (2); the outer side of the roller (4) is rotatably connected to the inner wall of the first installation groove (9).

5. The battery cell chain etching and alkali back polishing device according to claim 1, characterized in that: A second mounting groove (10) for use with the roller (4) is provided at the bottom of the mounting plate (6), and the outer side of the roller (4) is rotatably connected to the inner wall of the second mounting groove (10).

6. The battery cell chain etching and alkali back polishing device according to claim 1, characterized in that: A fixing bolt (11) is provided on the top of the mounting plate (6), and the outer side of the fixing bolt (11) is threadedly connected to the inner wall of the mounting frame (2).

7. The battery cell chain etching and alkali back polishing device according to claim 1, characterized in that: Slide blocks (12) are fixedly connected to both sides of the installation frame (2), and moving grooves (13) for use with the slide blocks (12) are provided on both sides of the inner wall of the solution box (1).

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