Back-contact main-grid-free battery string manufacturing mechanism

Abstract

The utility model relates to a back-contact main-grid-free battery string manufacturing mechanism, which comprises a welding strip carrying mechanism, a double-station series connection platform and a skin film placing mechanism which are arranged adjacently, wherein the welding strip carrying mechanism and the skin film placing mechanism extend to the upper part of the double-station series connection platform from one side of the double-station series connection platform. In the working process, battery strings pasted with adhesive tapes are placed on the two stations of the double-station series connection platform, one station is moved to the corresponding position of the welding strip carrying mechanism, the welding strip carrying mechanism places a welding strip on one station, then the station is moved to the corresponding position of the skin film placing mechanism, and the skin film placing mechanism places a skin film. The device has the advantages that the structural design is reasonable, a skin film, a welding strip, an adhesive tape and a battery piece can be accurately and efficiently bonded, and the problem that an assembly circuit is poor due to deviation and bending of the welding strip can be solved; and the double-interaction series-connection station is adopted, the welding process is avoided, the CT can be improved, and the productivity is optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of battery string mechanism, specifically to a kind of back contact no master grid battery string mechanism. BACKGROUND

[0002] According to the interconnection mode of welding strip and battery piece, the stringing mode of no master grid battery string can be divided into four categories: "SmartWire", "film coating", "welding+dispensing" and "dispensing". Among them, the film coating technology forms a battery string through the combination of skin film, welding strip and battery piece.

[0003] In the existing film coating technology, the combination of skin film, welding strip and battery string still has limitations, lacks accuracy and is low in efficiency, and there are cases of welding strip deviation and bending, which can cause component circuit failure and cannot meet the growing production needs. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of back contact no master grid battery string mechanism, which aims to overcome the above-mentioned deficiencies of the prior art, improve accuracy and production efficiency, and improve product quality.

[0005] The technical solution of the utility model: a kind of back contact no master grid battery string mechanism includes adjacent welding strip conveying mechanism, double-station stringing platform and skin film placement mechanism, and the welding strip conveying mechanism and the skin film placement mechanism extend from one side of the double-station stringing platform to above the double-station stringing platform. When working, place the battery string with adhesive tape on the two stations of the double-station stringing platform, move one station to the corresponding position of the welding strip conveying mechanism, place the welding strip on one station by the welding strip conveying mechanism, then move the station to the corresponding position of the skin film placement mechanism, and place the skin film by the skin film placement mechanism.

[0006] Preferably, the welding strip conveying mechanism includes a Y-direction horizontal movement module, a Z-direction lifting module and a jaw assembly, wherein the Z-direction lifting module is installed on the Y-direction horizontal movement module, and the Y-direction horizontal movement module is provided with the jaw assembly. When working, the welding strip arranged and aligned by external mechanism is clamped by the jaw assembly and conveyed in two directions by the Y-direction horizontal movement module and the Z-direction lifting module to the corresponding station of the double-station stringing platform.

[0007] Preferably, the jaw assembly includes N groups of jaw mechanisms, each jaw mechanism includes a cylinder and two rows of jaws controlled by the cylinder to open and close, and the jaws in one row are arranged in groups with the corresponding positions of the jaws in the other row, and each group of jaws clamps one welding strip.

[0008] Preferably, the skin film placing mechanism comprises a Y-direction moving module, a Z-direction moving module and a film suction assembly, the Z-direction moving module is installed on the Y-direction moving module, and the film suction assembly is installed on the Z-direction moving module.

[0009] Preferably, the film suction assembly comprises a P-group film suction mechanism, the film suction mechanism is connected with a vacuum mechanism, and the film suction mechanism is provided with an avoidance groove avoiding the position of the welding belt.

[0010] Preferably, the double-station serial connection platform comprises two parallel and adjacent stations, each station comprises a belt conveying mechanism, an integral moving module and a heating bottom plate, the length of the belt conveying mechanism is the length of two battery strings in series, the integral moving module is located above one end of the belt conveying mechanism, the heating bottom plate is installed on the integral moving module, the welding belt positioning mechanism is further installed on the side of the belt conveying mechanism, and the flattening mechanism is arranged above the other end of the belt conveying mechanism.

[0011] The skin film placing mechanism comprises a Y-direction moving module, a Z-direction moving module and a film suction assembly, the Z-direction moving module is installed on the Y-direction moving module, and the film suction assembly is installed on the Z-direction moving module. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of the back-contact non-main-grid battery string manufacturing mechanism.

[0013] Figure 2 is Figure 1 a structural schematic view of the clamping jaw mechanism.

[0014] Figure 3 is Figure 1 a structural schematic view of the skin film placing mechanism.

[0015] Figure 4 is Figure 1 a structural schematic view of the integral moving module and the heating bottom plate.

[0016] 10 is a solder strip carrying mechanism, 11 is a Y-direction transverse movement module, 12 is a Z-direction lifting module, 13 is a clamping jaw assembly, 131 is a pneumatic cylinder, 132 is a clamping jaw, 20 is a double-station serial platform, 21 is a belt conveying mechanism, 22 is an integral movement module, 23 is a heating base plate, 24 is a solder strip positioning mechanism, 25 is a flattening mechanism, 30 is a skin film placing mechanism, 31 is a Y-direction movement module, 32 is a Z-direction movement module, and 33 is a skin film suction assembly. DETAILED DESCRIPTION

[0017] The utility model will be explained in further detail below in combination with examples and specific embodiments.

[0018] As shown in Figure 1 As shown in Figure 1 A back contact no-main grid cell string preparation mechanism includes a solder strip carrying mechanism 10, a double-station serial platform 20 and a skin film placing mechanism 30 arranged adjacently, and the solder strip carrying mechanism 10 and the skin film placing mechanism 30 extend from one side of the double-station serial platform 20 to above the double-station serial platform 20. During work, the cell strings with adhesive tape attached are placed on the two stations of the double-station serial platform 20, one station is moved to the corresponding position of the solder strip carrying mechanism 10, the solder strip carrying mechanism 10 places a solder strip on the station, and then the station is moved to the corresponding position of the skin film placing mechanism 30, and the skin film placing mechanism 30 places a skin film.

[0019] As shown in Figure 1 The solder strip carrying mechanism 10 includes a Y-direction transverse movement module 11, a Z-direction lifting module 12 and a clamping jaw assembly 13, wherein the Z-direction lifting module 12 is installed on the Y-direction transverse movement module 11, and the Y-direction transverse movement module 11 is provided with the clamping jaw assembly 13. During work, the solder strip arranged and aligned by an external mechanism is clamped by the clamping jaw assembly 13 and carried in two directions by the Y-direction transverse movement module 11 and the Z-direction lifting module 12 to the corresponding station of the double-station serial platform 20.

[0020] The clamping jaw assembly 13 includes N groups of clamping jaw mechanisms, and N is determined by the number of serially connected cell pieces, as shown in Figure 2 The clamping jaw mechanism includes a pneumatic cylinder 131 and two rows of clamping jaws 132 controlled to open and close by the pneumatic cylinder 131, and the clamping jaws 132 in one row are arranged in groups with the corresponding position clamping jaws in the other row, the number of groups matches the number of grid lines of the cell piece, and each group of clamping jaws clamps one solder strip.

[0021] As shown in Figure 3As shown, the skin film placing mechanism 30 includes a Y-direction moving module 31, a Z-direction moving module 32 and a film suction assembly 33. The Z-direction moving module 32 is installed on the Y-direction moving module 31, and the film suction assembly 33 is installed on the Z-direction moving module 32. In operation, the skin film cut and expanded by the external mechanism is sucked by the film suction assembly 33, and is carried in two directions by the Y-direction moving module 31 and the Z-direction moving module 32, and is transported to the corresponding position of the double-station serial platform 20.

[0022] The film suction assembly 33 includes P sets of film suction mechanisms 331, and P is determined by the number of battery piece halves. The film suction mechanism is connected with a vacuum mechanism, and a avoiding groove is arranged on the film suction mechanism to avoid the welding belt. In operation, the film suction mechanism 311 sucks and places the film under the control of the vacuum. The avoiding groove is arranged to avoid the welding belt when being pressed, so as to prevent the welding belt from being raised to cause the pressing to be not tight. After the pressing is completed, the vacuum is closed, and the film is dropped from the film suction mechanism 311.

[0023] As shown in Figure 1 , 4 The double-station serial platform 20 includes two parallel and adjacent stations. Each station includes a belt conveying mechanism 21, an integral moving module 22 and a heating base plate 23. The length of the belt conveying mechanism 21 is the length of two battery strings. The integral moving module 22 is located above one end of the belt conveying mechanism 21, and the heating base plate 23 is installed on the integral moving module 22. The welding belt positioning mechanism 24 is also installed on the side of the belt conveying mechanism 21. The flattening mechanism 25 is arranged above the other end of the belt conveying mechanism 21.

[0024] In operation, the battery string with the adhesive tape is placed on the belt conveying mechanism 21 at the first position. The welding belt positioning mechanism 24 avoids the position when the battery piece is placed, and is moved to the position above the belt conveying mechanism 21 when the welding belt is placed. The welding belt is carried to the welding belt positioning mechanism 24 after being cut and aligned. After the welding belt is placed, the integral moving module 22 carries the battery piece and the welding belt to the second position (the belt conveying mechanism 21 is stationary). At the second position, the skin film cut and expanded is placed downward by the skin film placing mechanism 30. At this time, the clamping jaw 132 at one end of the welding belt is loosened, and the welding belt is dropped on the battery piece. With the downward pressing of the skin film placing mechanism 30, the clamping jaw 132 at the other end is loosened, and the welding belt is also pressed on the battery piece. The temperature of the battery piece is increased under the heat conduction of the heating base plate 23. The adhesion of the skin film is activated after being pressed and contacted with the battery piece, so that the preliminary combination of the battery piece, the welding belt and the skin film is realized. The skin film placing mechanism 30 is lifted, and the belt conveying mechanism 21 is moved (the integral moving module 22 is stationary) to carry the battery piece, the welding belt and the skin film to the third position for further serial connection. The flattening mechanism 25 is arranged at the third position to further combine the preliminarily combined battery piece and the skin film, so as to ensure the complete and firm combination.

[0025] Each of the above components is of the prior art, and a person skilled in the art can use any model and prior design that can achieve the corresponding function.

[0026] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the inventive concept of the present application, a number of modifications and improvements can be made, which all fall within the protection scope of the present application.

Claims

1. A back-contact busbarless battery stringing mechanism, characterized in that: The device comprises a welding strip conveying mechanism (10), a double-station serial platform (20) and a skin membrane placement mechanism (30) which are arranged adjacent to each other. The welding strip conveying mechanism (10) and the skin membrane placement mechanism (30) extend from one side of the double-station serial platform (20) to above the double-station serial platform (20).

2. The back-contact busbarless battery stringing mechanism according to claim 1, characterized in that: The welding strip transport mechanism (10) comprises a Y-direction lateral movement module (11), a Z-direction lifting module (12) and a clamping claw assembly (13), wherein the Z-direction lifting module (12) is installed on the Y-direction lateral movement module (11), and the Y-direction lateral movement module (11) is equipped with the clamping claw assembly (13).

3. The back-contact busbarless battery stringing mechanism according to claim 2, characterized in that: The clamping jaw assembly (13) includes N groups of clamping jaw mechanisms, each of which includes a cylinder (131) and two rows of clamping jaws (132) whose opening and closing are controlled by the cylinder (131). One row of clamping jaws (132) is grouped with the corresponding clamping jaws (132) on the other row, and each group of clamping jaws (132) clamps a welding strip.

4. The back-contact busbarless battery stringing mechanism according to claim 1, characterized in that: The skin membrane placement mechanism (30) comprises a Y-direction moving module (31), a Z-direction moving module (32) and a film suction assembly (33), wherein the Z-direction moving module (32) is mounted on the Y-direction moving module (31), and the film suction assembly (33) is mounted on the Z-direction moving module (32).

5. The back-contact busbarless battery stringing mechanism according to claim 4, characterized in that: The film suction assembly (33) comprises a P group of film suction mechanisms (331), the film suction mechanisms are externally connected to a vacuum mechanism, and an avoidance groove for avoiding the position of the welding strip is provided on the film suction mechanisms.

6. The back-contact busbarless battery stringing mechanism according to claim 1, characterized in that: The double-station serial platform (20) includes two parallel adjacent stations, each station including a belt conveyor mechanism (21), an integral motion module (22) and a heating base plate (23). The length of the belt conveyor mechanism (21) is the length of two battery strings, the integral motion module (22) is located above one end of the belt conveyor mechanism (21), and the heating base plate (23) is installed on the integral motion module (22). A welding strip positioning mechanism (24) is also installed on the side of the belt conveyor mechanism (21), and a flattening mechanism (25) is provided above the other end of the belt conveyor mechanism (21).

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