Welding pressing device and battery string welding equipment

Abstract

The utility model discloses a welding pressing device which comprises a support, an infrared light welding part, a conveying roller set and an extrusion roller set, the extrusion roller set and the conveying roller set are rotationally arranged on the support, the infrared light welding part is arranged on the support, and the infrared light welding part and the extrusion roller set are sequentially arranged in the first direction. The infrared light welding piece, the extrusion roller set and the conveying roller set are oppositely arranged in the gravity direction, and the extrusion roller set and the conveying roller set are at least partially meshed and matched. According to the technical scheme, the problems that when a film-coated battery string is separated from a belt conveying material channel in the prior art, a glue film is easily pulled up to cause local swelling, and when a photovoltaic module produced by the film-coated battery string is subjected to EL detection after a lamination process, the film-coated battery string cannot be easily separated from the belt conveying material channel can be solved; the problem that the qualified rate of the photovoltaic module is reduced due to power attenuation or failure caused by the fact that a plurality of shadows of the photovoltaic module are easily detected is solved. The utility model further discloses battery string welding equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of film-coated battery string preparation, in particular to a welding pressing device and battery string welding equipment. Background Art

[0002] When the film-coated battery string is prepared, the infrared light welding part heats the battery cells in the film-coated battery string to be welded by infrared light, so that the adhesive film on the opposite sides melts, and the welding tape is adhered to the front and back of the battery cell through the adhesive film to fix the welding tape relative to the battery cell. At the same time, the adhesive film is also easy to stick to the conveyor belt after being heated. When the film-coated battery string is separated from the belt conveyor, the adhesive film is easily pulled up and causes local bulging. The film-coated battery strings produced under the above circumstances will cause the photovoltaic modules produced by them to easily detect multiple shadows during EL testing after the lamination process, resulting in power attenuation or failure, thereby causing a decrease in the qualified rate of the photovoltaic modules. Utility Model Content

[0003] The purpose of the utility model is to provide a welding pressing device and a battery string welding device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding pressing device, comprising a bracket, an infrared light welding component, a conveying roller group and an extrusion roller group, wherein the extrusion roller group and the conveying roller group are both rotatably arranged on the bracket, the infrared light welding component is arranged on the bracket, the infrared light welding component and the extrusion roller group are arranged in sequence along a first direction, the infrared light welding component and the extrusion roller group are arranged relative to the conveying roller group along the direction of gravity, and the extrusion roller group and the conveying roller group are at least partially engaged with each other.

[0005] Preferably, it also includes a cooling member, which is arranged on the bracket, and the infrared welding member, the extrusion roller group and the cooling member are arranged in sequence along the first direction, and the cooling member is used to cool at least part of the coated battery string after being pressed by the extrusion roller group.

[0006] Preferably, the conveying roller group includes a driving motor, a first transmission belt and a plurality of first rollers arranged in an array, the driving motor is disposed on the bracket, the plurality of first rollers are all transmission-coordinated with the first transmission belt, the plurality of first rollers are all rotatably disposed on the bracket, any one of the plurality of first rollers is transmission-connected to the driving end of the driving motor, and at least one of the plurality of first rollers is meshingly coordinated with the extrusion roller group.

[0007] Preferably, the conveying roller group includes an electric roller, a first transmission belt and a plurality of first rollers, the electric roller and the plurality of first rollers are arranged in an array, the plurality of first rollers and the electric roller are both in transmission cooperation with the first transmission belt, the plurality of first rollers and the electric roller are both rotatably arranged on the bracket, and at least one of the plurality of first rollers and / or the electric roller are meshed and cooperated with the extrusion roller group.

[0008] Preferably, a plurality of flexible protrusions are arranged around the surface of the first roller.

[0009] Preferably, the extrusion roller group includes a plurality of second rollers, which are arranged in an array and rotatably disposed on the bracket, and the plurality of second rollers are meshed and matched with the plurality of first rollers corresponding thereto one by one.

[0010] Preferably, a plurality of flexible protrusions are disposed around the surface of the first roller and / or the surface of the second roller.

[0011] The present application also discloses a battery string welding device, comprising a conveying mechanism, a welding mechanism and the above-mentioned welding pressing device, wherein the welding mechanism is arranged on the conveying mechanism, and the welding pressing device is arranged adjacent to the discharge end of the conveying mechanism.

[0012] Preferably, the welding mechanism and / or the infrared light welding structure is an infrared lamp welding head or an infrared LED welding head.

[0013] The technical solution adopted in this application can achieve the following beneficial effects:

[0014] On the one hand, in a welding pressing device and a battery string welding device disclosed in the present application, the extrusion roller group and the conveying roller group can be rotatably disposed on a bracket, the infrared light welding component and the driving motor are both disposed on the bracket, the infrared light welding component and the extrusion roller group are sequentially arranged along a first direction (the first direction refers to the conveying direction of the conveying roller group, that is, the moving direction of the coated battery string), the infrared light welding component and the extrusion roller group are relatively arranged along the gravity direction, the extrusion roller group and the conveying roller group are at least partially meshed with each other, and the driving end of the driving motor is transmission-connected to the conveying roller group.

[0015] During the use of the welding and pressing device, the conveying roller group carries the coated battery string, and the driving motor drives the conveying roller group to rotate to move the coated battery string along a first direction. When at least a portion of the coated battery string moves to a position relative to the infrared light welding component, the infrared light welding component welds at least a portion of the coated battery string to increase the temperature of at least one battery cell in at least a portion of the coated battery string, and the adhesive films on both sides of the battery string are heated to form a molten state.

[0016] When at least part of the coated battery string moves to a position opposite to the extrusion roller group, since the extrusion roller group and the conveying roller group are at least partially meshed and matched, and the rotation direction of the extrusion roller group is opposite to that of the conveying roller group, at least part of the coated battery string will be squeezed by the extrusion roller group and the conveying roller group, so that the film on both sides of at least one battery cell in at least part of the coated battery string will be squeezed, so that the film can be completely attached to the battery cell, and since the contact between the extrusion roller group and the conveying roller group and the battery string is a rolling line contact, compared with the situation where the conveyor belt carries the film for a long time and produces contact adhesion, the above method can avoid the film from being easily pulled up and causing local bulging, thereby ensuring that when the photovoltaic modules produced by the above-mentioned coated battery string are subjected to EL inspection after the lamination process, the photovoltaic modules will not detect more shadow areas, thereby improving the qualified rate of the photovoltaic modules.

[0017] On the other hand, the present application also discloses a battery string welding device, including a conveying mechanism, a welding mechanism and the above-mentioned welding pressing device. Specifically, the welding mechanism is arranged on the conveying mechanism, and the welding pressing device is arranged adjacent to the discharge end of the conveying mechanism. The welding pressing device can press the film-coated battery string again after the film-coated battery string is welded by the welding mechanism, so as to achieve a better adhesion effect between the adhesive film and the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a battery string welding device disclosed in an embodiment of the present application;

[0020] Figure 2 A side view of a welding pressing device disclosed in an embodiment of the present application;

[0021] Figure 3 It is a cross-sectional view of the welding pressing device disclosed in the embodiment of the present application.

[0022] In the figure: 100, bracket; 200, infrared welding part; 310, conveying roller group; 311, driving motor; 312, first transmission belt; 313, first roller; 320, extrusion roller group; 321, second roller; 400, cooling part; 500, conveying mechanism; 600, welding mechanism. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0024] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] like Figure 2 and Figure 3 As shown, the present application discloses a welding pressing device, which includes a bracket 100 , an infrared welding member 200 , a conveying roller group 310 and an extrusion roller group 320 .

[0027] Specifically, the extrusion roller group 320 and the conveying roller group 310 are both rotatably disposed on the bracket 100, the infrared light welding component 200 is disposed on the bracket 100, the infrared light welding component 200 and the extrusion roller group 320 are arranged in sequence along the first direction (the first direction refers to the conveying direction of the conveying roller group 310, that is, the moving direction of the coated battery string), the infrared light welding component 200 and the extrusion roller group 320 are arranged opposite to the conveying roller group 310 along the direction of gravity, and the extrusion roller group 320 and the conveying roller group 310 are at least partially engaged with each other.

[0028] During the use of the welding pressing device, the conveying roller group 310 carries the coated battery string, and the driving motor 311 drives the conveying roller group 310 to rotate to move the coated battery string along the first direction. When at least part of the coated battery string moves to a position opposite to the infrared light welding component 200, the infrared light welding component 200 performs welding processing on at least part of the coated battery string to increase the temperature of at least one battery cell in at least part of the coated battery string, and the adhesive films on both sides of the battery string are heated to form a molten state.

[0029] When at least part of the coated battery string moves to a position opposite to the extrusion roller group 320, since the extrusion roller group 320 and the conveying roller group 310 are at least partially engaged and matched, the rotation direction of the extrusion roller group 320 is opposite to the rotation direction of the conveying roller group 310, and at least part of the coated battery string will be squeezed by the extrusion roller group 320 and the conveying roller group 310, so that the film on both sides of at least one battery cell in at least part of the coated battery string will be squeezed, so that the film can be completely attached to the battery cell, and since the contact between the extrusion roller group 320 and the conveying roller group 310 and the battery string is a rolling line contact, compared with the situation where the conveyor belt carries the film for a long time and produces contact adhesion, the above method can prevent the film from being easily pulled up and causing local bulging, thereby ensuring that when the photovoltaic modules produced by the above-mentioned coated battery string are subjected to EL testing after the lamination process, the photovoltaic modules will not detect more shadow areas, thereby improving the qualified rate of the photovoltaic modules.

[0030] In an embodiment of the present application, the disclosed welding and pressing device may further include a cooling member 400. Specifically, the cooling member 400 may be disposed on the bracket 100. The infrared light welding member 200, the extrusion roller group 320 and the cooling member 400 are sequentially arranged along the first direction. The cooling member 400 is used to cool at least part of the coated battery string after being pressed by the extrusion roller group 320, so that the adhesive film in at least part of the coated battery string after being pressed by the extrusion roller group 320 can be quickly cooled, thereby reducing the viscosity of the adhesive film, and further preventing the adhesive film from being easily pulled up due to adhesion, resulting in local bulging.

[0031] In an optional scheme, the conveying roller group 310 may include a driving motor 311, a first transmission belt 312 and a plurality of first rollers 313 arranged in an array. Specifically, the driving motor 311 is disposed on the bracket 100, and the plurality of first rollers 313 are all transmission-coordinated with the first transmission belt 312. The plurality of first rollers 313 are all rotatably disposed on the bracket 100. Any one of the plurality of first rollers 313 is transmission-connected to the driving end of the driving motor 311, and at least one of the plurality of first rollers 313 is meshed and cooperated with the extrusion roller group 320.

[0032] In another optional scheme, the conveying roller group 310 may include an electric roller, a first transmission belt 312 and multiple first rollers 313, the electric roller and the multiple first rollers 313 are arranged in an array, the multiple first rollers 313 and the electric rollers are all in transmission cooperation with the first transmission belt 312, the multiple first rollers 313 and the electric rollers are all rotatably arranged on the bracket 100, and at least one of the multiple first rollers 313 and / or the electric roller is meshed with the extrusion roller group 320.

[0033] In a further technical solution, the surface of the first roller 313 may be surrounded by a plurality of flexible protrusions, so that when the coated battery string is subjected to the extrusion pressure of the extrusion roller group 320, the plurality of flexible protrusions can reduce the extrusion pressure by flexible deformation, while also protecting the coated battery string from hidden cracks, bending, etc.

[0034] In the embodiment of the present application, the extrusion roller group 320 may include a plurality of second rollers 321. Specifically, the plurality of second rollers 321 are arranged in an array and are rotatably arranged on the bracket 100. The plurality of second rollers 321 are meshed and matched with the plurality of first rollers 313 corresponding thereto. The above structure can realize multiple extrusions of at least part of the film-coated battery string through the plurality of second rollers 321, thereby improving the effect of the adhesive film being attached to the battery cell.

[0035] In the embodiment of the present application, a plurality of flexible protrusions may be arranged around the surface of the first roller 313 and / or the surface of the second roller 321. The plurality of flexible protrusions are arranged around the surface of the first roller 313 and the surface of the second roller 321, which is conducive to further realizing flexible extrusion, thereby further avoiding the occurrence of hidden cracks, bending, etc. in the film-coated battery string.

[0036] like Figure 1 As shown, the present application also discloses a battery string welding device, which includes a conveying mechanism 500, a welding mechanism 600 and the above-mentioned welding pressing device. Specifically, the welding mechanism 600 is arranged on the conveying mechanism 500, and the welding pressing device is arranged adjacent to the discharge end of the conveying mechanism 500. The welding pressing device can press the film-coated battery string again after the film-coated battery string is welded by the welding mechanism 600, so as to achieve a better adhesion effect between the adhesive film and the battery cell.

[0037] In the embodiment of the present application, the welding mechanism 600 and / or the infrared light welding part 200 can be an infrared lamp welding head or an infrared LED welding head. For both of the above, they are infrared lamp welding heads or infrared LED welding heads, or they are a combination of infrared lamp welding heads and infrared LED welding heads, and the present application does not impose any limitation on this.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding pressing device, characterized in that: The invention comprises a support (100), an infrared light welding component (200), a conveying roller group (310) and an extrusion roller group (320); the extrusion roller group (320) and the conveying roller group (310) are both rotatably arranged on the support (100); the infrared light welding component (200) is arranged on the support (100); the infrared light welding component (200) and the extrusion roller group (320) are arranged in sequence along a first direction; the infrared light welding component (200) and the extrusion roller group (320) are arranged relative to the conveying roller group (310) along the direction of gravity; and the extrusion roller group (320) and the conveying roller group (310) are at least partially meshed with each other.

2. The welding pressing device according to claim 1, characterized in that: It also includes a cooling member (400), which is arranged on the bracket (100), and the infrared welding member (200), the extrusion roller group (320) and the cooling member (400) are arranged in sequence along a first direction, and the cooling member (400) is used to cool at least part of the film-coated battery string after being pressed by the extrusion roller group (320).

3. The welding pressing device according to claim 1, characterized in that: The conveying roller group (310) comprises a driving motor (311), a first transmission belt (312) and a plurality of first rollers (313) arranged in an array, the driving motor (311) being arranged on the bracket (100), the plurality of first rollers (313) all being transmission-coordinated with the first transmission belt (312), the plurality of first rollers (313) all being rotatably arranged on the bracket (100), any one of the plurality of first rollers (313) being transmission-connected with the driving end of the driving motor (311), and at least one of the plurality of first rollers (313) being meshingly coordinated with the extrusion roller group (320).

4. The welding pressing device according to claim 1, characterized in that: The conveying roller group (310) comprises an electric roller, a first transmission belt (312) and a plurality of first rollers (313); the electric roller and the plurality of first rollers (313) are arranged in an array; the plurality of first rollers (313) and the electric roller are both in transmission cooperation with the first transmission belt (312); the plurality of first rollers (313) and the electric roller are both rotatably arranged on the bracket (100); at least one of the plurality of first rollers (313) and / or the electric roller is in meshing cooperation with the extrusion roller group (320).

5. The welding pressing device according to claim 3 or 4, characterized in that: The surface of the first roller (313) is surrounded by a plurality of flexible protrusions.

6. The welding pressing device according to claim 3 or 4, characterized in that: The extrusion roller group (320) comprises a plurality of second rollers (321), which are arranged in an array and are rotatably disposed on the bracket (100), and the plurality of second rollers (321) are meshed and matched with the plurality of first rollers (313) corresponding thereto in a one-to-one correspondence.

7. The welding pressing device according to claim 6, characterized in that: The surface of the first roller (313) and / or the surface of the second roller (321) are both surrounded by a plurality of flexible protrusions.

8. A battery string welding device, characterized in that: It comprises a conveying mechanism (500), a welding mechanism (600) and a welding pressing device as described in any one of claims 1 to 7, wherein the welding mechanism (600) is arranged on the conveying mechanism (500), and the welding pressing device is arranged adjacent to the discharge end of the conveying mechanism (500).

9. The battery string welding equipment according to claim 8, characterized in that: The welding mechanism (600) and / or the infrared light welding part (200) is an infrared lamp welding head or an infrared LED welding head.

Images