Hot melt adhesive welding tool for bipolar plate of vanadium redox flow battery

Abstract

The invention belongs to the technical field of welding tools, particularly relates to a vanadium redox flow battery bipolar plate hot melt adhesive welding tool, and aims to solve the problems of low welding efficiency, non-uniform welding quality and high labor cost in the prior art, and provides the following scheme that the vanadium redox flow battery bipolar plate hot melt adhesive welding tool comprises a base and a pressing plate, a plurality of positioning pins are fixedly installed on the base, handles are arranged on the two sides of the base, a plurality of positioning holes are formed in the pressing plate, the positioning pins are matched with the positioning holes, the pressing plate moves towards the base along the positioning pins by means of the gravity of the pressing plate, and a workpiece is pressed in the moving process of the pressing plate. A plurality of positioning pins are symmetrically distributed along the center of the base, a second hot melt adhesive layer and a first hot melt adhesive layer are arranged below the pressing plate, a bipolar plate is arranged on the base, a gasket is arranged on the bipolar plate, the welding efficiency can be improved, the welding quality is unified, and the labor cost can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of welding tooling, and in particular to a hot melt adhesive welding tooling for bipolar plates of vanadium liquid flow batteries. Background Art

[0002] All-vanadium liquid flow battery is a new type of high-efficiency electric energy conversion and storage device. Because its battery output power and energy storage capacity are independent of each other, it is suitable for use as a large-scale energy storage device in the process of renewable energy power generation such as wind power and solar power and in the process of power grid peak regulation;

[0003] Liquid flow battery is a new type of energy storage battery with the advantages of high energy conversion efficiency, long service life, convenient capacity adjustment, high safety and environmental friendliness. It can be used in large-scale energy storage fields such as renewable energy such as solar energy and wind energy and grid peak shaving and valley filling. It is one of the most promising energy storage devices. Among them, the battery stack is an important component of the liquid flow battery and is the power unit of the liquid flow battery. During the operation of the battery stack, the electrolyte reacts on the electrodes inside the battery stack to achieve charging and discharging; the consistency of the battery stack performance has a great impact on the liquid flow battery system, and the cost of the battery stack also directly affects the cost of the battery system. Therefore, it is very important to improve the uniformity and stability of the battery stack assembly through process improvement. At the same time, using jigs and equipment to replace manual labor is also crucial to reducing the labor cost of the battery stack; the bipolar plate and hot melt adhesive in the battery stack need to be hot-pressed and welded. Generally, the hot melt adhesive film is placed manually, and then an electric iron is used for welding; such a process has low welding efficiency, inconsistent welding quality, and high labor cost. For this reason, we propose a hot melt adhesive welding tool for bipolar plates of vanadium liquid flow batteries. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of low welding efficiency, uneven welding quality and high labor cost in the prior art, and to propose a hot melt adhesive welding tool for bipolar plates of vanadium liquid flow batteries.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A hot melt adhesive welding tool for a vanadium liquid flow battery bipolar plate comprises a base and a pressing plate. A reinforcing rib is fixedly installed on the bottom of the base. A plurality of positioning pins are fixedly installed on the base. Handles are arranged on both sides of the base. A plurality of positioning holes are arranged on the pressing plate. The plurality of positioning pins cooperate with the plurality of positioning holes.

[0007] Preferably, the pressing plate moves along the positioning pin toward the base by its own gravity, and the pressing plate presses the workpiece during the movement.

[0008] Preferably, the plurality of positioning pins are symmetrically distributed along the center of the base.

[0009] Preferably, a second hot melt adhesive layer and a first hot melt adhesive layer are provided below the pressing plate, a bipolar plate is provided on the base, and a gasket is provided on the bipolar plate.

[0010] Preferably, the plurality of positioning holes are symmetrically distributed along the center of the pressing plate, and the plurality of positioning pins slide relative to the plurality of positioning holes.

[0011] In the present invention, the beneficial effects of the hot melt adhesive welding tool for the bipolar plate of the vanadium liquid flow battery are as follows: the present invention uses the tool to limit the bipolar plate, the hot melt adhesive and the gasket, and then uses a hot press to heat and press the hot melt adhesive together with the gasket and the bipolar plate. The welding efficiency can be improved by the tool and the equipment, and the uniformity of the welding quality can be ensured. When the tool used in the present invention is used, only people are needed to place it, and there is no need for manual welding with an electric iron, which shortens the welding time, reduces the labor level, and thus reduces the labor cost.

[0012] The present invention can improve welding efficiency, make welding quality uniform, and reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a hot melt adhesive welding tool for bipolar plates of vanadium liquid flow batteries proposed by the present invention;

[0014] Figure 2 A schematic diagram of the working condition of a hot melt adhesive welding tool for bipolar plates of vanadium liquid flow batteries proposed by the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the base reinforcement rib of a hot melt adhesive welding tool for a vanadium liquid flow battery bipolar plate proposed by the present invention;

[0016] Figure 4 This is a schematic diagram of the positioning pin installation structure of a hot melt adhesive welding tool for a vanadium liquid flow battery bipolar plate proposed by the present invention;

[0017] Figure 5 This is a schematic structural diagram of a hot melt adhesive welding tool for a vanadium liquid flow battery bipolar plate proposed by the present invention after clamping a workpiece.

[0018] In the figure: 1. base; 2. reinforcing ribs; 3. positioning pins; 4. pressure plate; 5. handle; 6. positioning holes; 7. first hot melt adhesive layer; 8. bipolar plate; 9. gasket; 10. second hot melt adhesive layer. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-Figure 5 A hot melt adhesive welding tool for a vanadium liquid flow battery bipolar plate comprises a base 1 and a pressing plate 4. A reinforcing rib 2 is fixedly installed at the bottom of the base 1. A plurality of positioning pins 3 are fixedly installed on the base 1. Handles 5 are arranged on both sides of the base 1. A plurality of positioning holes 6 are arranged on the pressing plate 4. The plurality of positioning pins 3 cooperate with the plurality of positioning holes 6.

[0021] Reference Figure 1 A plurality of positioning pins 3 are symmetrically distributed along the center of the base 1 to facilitate positioning.

[0022] Reference Figure 1 The plurality of positioning holes 6 are symmetrically distributed along the center of the pressing plate 4, and the plurality of positioning pins 3 slide relative to the plurality of positioning holes 6, which is convenient for installation and welding.

[0023] Reference Figure 1 The pressing plate 4 moves toward the base 1 along the positioning pin 3 by its own gravity. The pressing plate 4 presses the workpiece during the movement, which can stably press the workpiece and improve the welding quality.

[0024] Reference Figure 2 A second hot melt adhesive layer 10 and a first hot melt adhesive layer 7 are arranged below the pressing plate 4 , a bipolar plate 8 is arranged on the base 1 , and a gasket 9 is arranged on the bipolar plate 8 .

[0025] In this embodiment, when using the hot melt adhesive welding tooling for vanadium liquid flow battery bipolar plates, first place the first hot melt adhesive layer 7 with the adhesive surface facing upward and the release paper facing downward on the base 1, and when placing, the positioning pin 3 of the base 1 passes through the hole on the first hot melt adhesive layer 7, and then the positioning pin 3 of the base 1 passes through the hole of the bipolar plate 8, and the bipolar plate 8 is placed on top of the first hot melt adhesive layer 7, and then the gasket 9 passes through the positioning pin 3 of the base 1, and then the second hot melt adhesive layer 10 with the adhesive surface facing downward and the release paper facing upward is placed on top of the bipolar plate 8, and at the same time, the hole of the second hot melt adhesive layer 10 passes through the positioning pin 3 of the base 1, and then the tooling is placed on a hot press as a whole for hot pressing, and after a certain period of hot pressing, it is taken out, and the welded hot melt adhesive and bipolar plate 8 are taken out, and then the materials are re-prepared for the next production work.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hot melt adhesive welding tool for bipolar plates of vanadium flow batteries, comprising a base (1) and a pressing plate (4), characterized in that: A reinforcing rib (2) is fixedly mounted on the bottom of the base (1), a plurality of positioning pins (3) are fixedly mounted on the base (1), handles (5) are arranged on both sides of the base (1), a plurality of positioning holes (6) are arranged on the pressure plate (4), and the plurality of positioning pins (3) and the plurality of positioning holes (6) cooperate with each other.

2. A hot melt adhesive welding tool for bipolar plates of vanadium flow batteries according to claim 1, characterized in that: A plurality of positioning pins (3) are symmetrically distributed along the center of the base (1).

3. A hot melt adhesive welding tool for bipolar plates of vanadium flow batteries according to claim 1, characterized in that: The plurality of positioning holes (6) are symmetrically distributed along the center of the pressing plate (4), and the plurality of positioning pins (3) slide relative to the plurality of positioning holes (6).

4. A hot melt adhesive welding tool for bipolar plates of vanadium flow batteries according to claim 3, characterized in that: The pressing plate (4) moves along the positioning pin (3) toward the base (1) by its own weight, and the pressing plate (4) presses the workpiece during the movement.

5. A hot melt adhesive welding tool for bipolar plates of vanadium flow batteries according to claim 3, characterized in that: A second hot melt adhesive layer (10) and a first hot melt adhesive layer (7) are arranged below the pressing plate (4), a bipolar plate (8) is arranged on the base (1), and a gasket (9) is arranged on the bipolar plate (8).

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