Battery piece welding heating bottom plate

Abstract

The utility model discloses a battery piece welding heating bottom plate. Comprising a plate body, a high-temperature air channel and an adsorption part, a cover plate and a side plate are arranged on the upper surface of the plate body, the cover plate is flush with the side plate, and the cover plate and the side plate form a heating welding station; high-temperature air passages are uniformly distributed in the plate body below the heating welding station, the high-temperature air passages comprise main air passages and branch air passages, the main air passages are symmetrically arranged on two sides of the heating welding station, the main air passages are connected with an external high-temperature gas pipeline, the branch air passages are uniformly distributed between the main air passages, two ends of each branch air passage are respectively connected with the corresponding main air passages, and the branch air passages are communicated with the heating welding station. The main air passage is transversely arranged in the plate body, and the branch air passages are longitudinally arranged in the plate body; an adsorption part is arranged on the surface of the plate body below the cover plate, the adsorption part comprises magnetic suction grooves and magnetic suction pieces, the magnetic suction grooves are uniformly and transversely distributed in the surface of the plate body, and the magnetic suction pieces are arranged in the magnetic suction grooves. According to the utility model, the temperature of the plate body is uniformly distributed, the adsorption force is enhanced, and the welding effect of battery pieces is ensured.

Description

Technical field:

[0001] The utility model belongs to the technical field of battery cell production, and particularly relates to a battery cell welding heating bottom plate. Background technology:

[0002] During the production process of cells in solar cells, the cells need to be welded. The welding process is generally completed in a string welding machine using high-temperature gas.

[0003] In the actual welding process, the high-temperature gas is not evenly distributed on the welding plate, and the temperature on the welding plate varies, which affects the welding effect of the battery cells. In addition, the existing welding plate has a small adsorption force, and the battery cells are easy to move on the welding plate, which affects the welding effect of the battery cells.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility model content:

[0005] The purpose of the utility model is to provide a battery cell welding heating base plate, so as to overcome the defects in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides a battery cell welding heating base plate, including a plate body, a high-temperature air duct, and an adsorbent; a cover plate and a side plate are arranged on the upper surface of the plate body, the cover plate is flush with the side plate, and the cover plate and the side plate form a heating and welding station; a high-temperature air duct is evenly distributed in the plate body below the heating and welding station, and the high-temperature air duct includes a main air duct and a branch air duct, the main air duct is symmetrically arranged on both sides of the heating and welding station, the main air duct is connected to an external high-temperature gas pipeline, and branch air ducts are evenly distributed between the main air ducts, and the two ends of the branch air duct are respectively connected to the corresponding main air ducts, the main air duct is horizontally arranged in the plate body, and the branch air duct is vertically arranged in the plate body; an adsorbent is arranged on the surface of the plate body below the cover plate, and the adsorbent includes a magnetic suction groove and a magnetic suction sheet, the magnetic suction groove is evenly distributed on the surface of the plate body, and a magnetic suction sheet is arranged in the magnetic suction groove; the temperature of the plate body is made uniform by the high-temperature air duct, and the adsorption force of the battery cell is increased by the magnetic suction piece.

[0007] Preferably, in the technical solution, the battery cell welding heating base plate also includes temperature measuring holes, which are laterally symmetrically arranged on both sides of the plate body, the temperature measuring holes are located below the high-temperature air duct, and a temperature measuring instrument is installed in the temperature measuring holes.

[0008] Preferably, in the technical solution, the battery cell welding heating base plate also includes an auxiliary heating rod, which is horizontally arranged in the plate body, located below the high-temperature air duct, and electrically connected to the temperature measuring instrument to auxiliary heat the plate body according to the measured plate body temperature.

[0009] Preferably, in the technical solution, an auxiliary magnetic suction groove is provided in the side panel, the auxiliary magnetic suction groove is arranged longitudinally, and an auxiliary magnetic suction sheet is provided in the auxiliary magnetic suction groove, which cooperates with the magnetic suction sheet to expand the adsorption area in the heating and welding station, increase the adsorption force, and adsorb and fix the battery cell in the horizontal and vertical directions.

[0010] Preferably, in the technical solution, baffles are provided between the magnetic suction grooves, and mounting holes are symmetrically provided on the plates at both ends of the magnetic suction grooves to facilitate the disassembly and assembly of the magnetic suction sheets.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The high-temperature air duct, temperature measuring hole and auxiliary heating rod are used to achieve uniform distribution of the board temperature, while also ensuring the heating temperature of the board and the welding effect of the battery cell. The horizontal magnetic suction sheet and the vertical auxiliary magnetic suction sheet are used to improve the adsorption force of the board on the battery cell, so that the battery cell will not move randomly on the heating and welding station, ensuring the welding effect of the battery cell. Description of the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of the heating base plate for welding the battery cell of the utility model;

[0014] Figure 2 This is the front view of the heating base plate for welding the battery cell of the utility model;

[0015] Figure 3 for Figure 2 AA section view;

[0016] Figure 4 This is the right view of the heating base plate for welding the battery cell of the utility model;

[0017] Figure 5 for Figure 4 BB section view;

[0018] Figure 6 for Figure 1 Enlarged view of part C. Specific implementation method:

[0019] The specific implementation modes of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0020] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0021] like Figure 1-6As shown, a battery cell welding heating base plate includes a plate body 1, a high-temperature air duct 2, and an adsorbent 3; the plate body 1 is arranged below the conveyor belt of the string welding machine; the upper surface of the plate body 1 is provided with a cover plate and a side plate 10, the cover plate is flush with the side plate 10, and the cover plate and the side plate 10 form a heating welding station; the plate body 1 below the heating welding station is evenly distributed with a high-temperature air duct 2, the high-temperature air duct 2 includes a main air duct 20 and a branch air duct 21, the main air duct 20 is symmetrically arranged on both sides of the heating welding station, the main air duct 20 is connected to an external high-temperature gas pipeline, and the main air duct 20 There are evenly distributed bronchial passages 21, and both ends of the bronchial passages 21 are respectively connected to the corresponding main airways 20. The main airway 20 is horizontally arranged in the plate body 1, and the bronchial passages 21 are vertically arranged in the plate body 1; the temperature measuring holes 11 are horizontally symmetrically arranged on both sides of the plate body 1, the temperature measuring holes 11 are located below the high-temperature airway 2, and a temperature measuring instrument is installed in the temperature measuring holes 11; the auxiliary heating rod 12 is horizontally arranged in the plate body 1, the auxiliary heating rod 12 is located below the high-temperature airway 2, and the auxiliary heating rod 12 is electrically connected to the temperature measuring instrument. According to the measured temperature of the plate body 1, the plate body 1 is auxiliary heated.

[0022] An adsorption component 3 is provided on the surface of the plate body 1 below the cover plate, and the adsorption component 3 includes a magnetic adsorption groove 30, a magnetic adsorption sheet, and a baffle 31. The magnetic adsorption grooves 30 are evenly distributed laterally on the surface of the plate body 1, and a magnetic adsorption sheet is provided in the magnetic adsorption grooves 30; baffles 31 are provided between the magnetic adsorption grooves 30, and mounting holes 13 are symmetrically opened on the plate body 1 at both ends of the magnetic adsorption grooves 30 to facilitate the disassembly and assembly of the magnetic adsorption sheet; an auxiliary magnetic adsorption groove 32 is provided in the side plate 10, and the auxiliary magnetic adsorption groove 32 is longitudinally arranged. An auxiliary magnetic adsorption sheet is provided in the auxiliary magnetic adsorption groove 32, which cooperates with the magnetic adsorption sheet to expand the adsorption area in the heating and welding station, increase the adsorption force, and adsorb and fix the battery cell in the horizontal and vertical directions.

[0023] High-temperature gas enters the main gas channel 20 through the external high-temperature gas pipeline, and flows evenly through the entire plate body 1 through the branch gas channel 21, heating the plate body 1 to a suitable temperature. When the battery cell runs to the heating welding station through the conveyor belt in the stringing machine, the lifting mechanism under the battery cell welding heating bottom plate lifts the plate body 1, and the plate body 1 contacts the conveyor belt. The magnetic suction sheet and the auxiliary magnetic suction sheet adsorb the battery cell on the heating welding station formed by the cover plate and the side plate 10 through the conveyor belt, so that the battery cell will not move arbitrarily on the heating welding station, and the battery cell is heated and welded through the heated plate body 1. The temperature measuring instrument detects the temperature of the plate body 1 in real time through the temperature measuring hole 11. When the temperature of the plate body 1 is lower than the set working temperature, the auxiliary heating rod 12 starts to heat the plate body 1, keeping the temperature of the plate body 1 within the working temperature range, ensuring the welding effect of the battery cell. When the battery cell is welded, the lifting mechanism lowers the plate 1 to reset, the plate 1 is separated from the conveyor belt, the heating welding station releases the battery cell, the conveyor belt starts to drive the battery cell out of the heating welding station, and the next battery cell is moved into the heating welding station, and the above steps are repeated.

[0024] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A battery cell welding heating base plate, characterized in that: It includes a plate body, a high-temperature air duct and an adsorption component; a cover plate and a side plate are arranged on the upper surface of the plate body, the cover plate is flush with the side plate, and the cover plate and the side plate form a heating and welding station; a high-temperature air duct is evenly distributed in the plate body below the heating and welding station, the high-temperature air duct includes a main air duct and a branch air duct, the main air duct is symmetrically arranged on both sides of the heating and welding station, the main air duct is connected to an external high-temperature gas pipeline, branch air ducts are evenly distributed between the main air ducts, the two ends of the branch air duct are respectively connected to the corresponding main air ducts, the main air duct is horizontally arranged in the plate body, and the branch air duct is vertically arranged in the plate body; an adsorption component is arranged on the surface of the plate body below the cover plate, the adsorption component includes a magnetic suction groove and a magnetic suction sheet, the magnetic suction grooves are evenly distributed on the surface of the plate body, and a magnetic suction sheet is arranged in the magnetic suction grooves.

2. The battery cell welding heating base plate according to claim 1, characterized in that: The battery cell welding heating base plate also includes temperature measuring holes, which are laterally symmetrically arranged on both sides of the plate body, the temperature measuring holes are located below the high-temperature air duct, and temperature measuring instruments are installed in the temperature measuring holes.

3. The battery cell welding heating base plate according to claim 2, characterized in that: The battery cell welding heating base plate also includes an auxiliary heating rod, which is horizontally arranged in the plate body, the auxiliary heating rod is located below the high-temperature air channel, and the auxiliary heating rod is electrically connected to the temperature measuring instrument.

4. The battery cell welding heating base plate according to claim 1, characterized in that: An auxiliary magnetic suction groove is arranged in the side panel, the auxiliary magnetic suction groove is arranged longitudinally, and an auxiliary magnetic suction sheet is arranged in the auxiliary magnetic suction groove to cooperate with the magnetic suction sheet.

5. The battery cell welding heating base plate according to claim 1, characterized in that: Baffles are arranged between the magnetic suction grooves, and mounting holes are symmetrically opened on the plates at both ends of the magnetic suction grooves.

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