CN210970004U - A jig applied to the welding and sealing process of flow battery - Google Patents

Abstract

The utility model discloses a clamp applied to a welding and sealing process of a liquid flow battery. The clamp comprises a transparent upper clamp plate and a lower clamp plate. The transparent upper clamp plate is placed above the lower clamp plate. A transparent elastic rubber plate is provided; the upper surface of the lower splint is flat, and a rectangular groove is arranged in the middle of the upper surface, and the projection of the rectangular groove on the lower surface of the upper splint is located in the area where the elastic rubber plate is located on the lower surface of the upper splint; One or more rectangular rigid adjustment plates with the same or different depths are not arranged in the rectangular groove, and the shape and size of the rectangular rigid adjustment plate are the same as the cross-sectional shape of the rectangular groove parallel to the plate surface and same or equivalent size. The transmittance of the upper splint and the rubber plate placed in its groove to the welding light is not less than 30%. The utility model has a simple structure.

Description

A jig applied to the welding and sealing process of flow battery

technical field

The utility model belongs to the field of liquid flow battery sealing, in particular to a clamp used in a welding and sealing process of a liquid flow battery.

Background technique

In recent years, renewable clean energy has received more attention, but most renewable energy power generation such as wind energy and solar energy is discontinuous and unstable. The generated power fluctuates greatly and the adjustability is poor. In turn, it may have a greater impact on the power grid. Therefore, the development of large-scale energy storage technology is imminent. Among many large-scale energy storage technologies, flow batteries are favored by everyone because of their many advantages.

The flow battery is to introduce the liquid of the positive and negative electrodes into the battery through a pump, and realize the conversion between the chemical energy of the electrical energy and the electrical energy through the redox reaction. In this process, the sealing stability of the stack plays a key role. Therefore, the research of stack sealing is also an important technology in flow batteries.

The sealing methods of flow batteries mainly include rubber pad surface sealing, rubber pad line sealing, hot pressing sealing and welding sealing. Compared with other sealing methods, the welding sealing is relatively more stable and reliable, and has received more attention from people in the industry in recent years. In the welding and sealing process, it is very important to design and select an efficient fixture. .

Utility model content

The technical problem to be solved by the utility model is to provide a fixture applied to the welding and sealing process of the flow battery, so as to optimize the sealing process of the flow battery.

For achieving the above object, the technical scheme adopted by the present utility model is as follows:

A clamp applied to a welding and sealing process of a flow battery, characterized in that: the clamp comprises a transparent upper clamp plate and a lower clamp plate, the transparent upper clamp plate is placed above the lower clamp plate, the lower surface of the upper clamp plate is a plane, and the lower surface or the lower surface of the clamp plate is flat. A transparent elastic rubber plate is arranged in the middle; the upper surface of the lower splint is flat, and a rectangular groove is arranged in the middle of the upper surface, and the projection of the rectangular groove on the lower surface of the upper splint is located in the area where the elastic rubber plate is located on the lower surface of the upper splint ;There is no or more than 1 or 2 rectangular rigid adjustment plates of the same or different depths in the rectangular groove, and the shape and size of the rectangular rigid adjustment plate are the same as the cross-sectional shape of the rectangular groove parallel to the plate surface. same or equivalent size.

The material of the transparent upper splint can be a flat plate with high light transmittance, such as a plexiglass plate, a tempered glass plate, and an acrylic plate.

The material of the lower splint is metal plate, plexiglass plate, tempered glass plate, acrylic plate and other flat plates.

The transparent elastic rubber sheet can be a silicone rubber sheet with high light transmittance.

The hard adjustment plates are metal plates, plexiglass plates, tempered glass plates, acrylic plates and other flat plates.

The utility model has a simple structure, the upper clamping plate is designed with a groove and the rubber plate is placed, which effectively reduces the stress on the sample to be welded, and ensures that the to-be-welded sample is closely fitted with the upper clamping plate and is uniformly stressed; The rectangular groove and hard adjusting plate provided can make welding parts of different shapes and thicknesses firmly fixed, improve the welding quality, and ensure the sealing effect of the stack.

Description of drawings

Fig. 1 is the structural representation of Embodiment 1 of the present utility model;

FIG. 2 is a schematic structural diagram of Embodiment 2 of the present invention.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and the embodiments, and the modes of the present utility model include but are not limited to the following embodiments.

Example 1

As shown in Figure 1, a fixture applied to the welding and sealing process of a flow battery includes an upper splint 1 with a groove 2, and the length, width and height of the groove 2 are 8cm, 8cm, and 3mm respectively; The lower splint 4 of groove 5, the length, width and height of groove 5 are respectively 6cm, 6cm, 3mm; Silicone rubber pad 3 is placed in the groove of upper splint 1, and the length, width and height of silicon rubber pad 3 are respectively 8cm , 8cm, 5mm. The transmittance of the upper splint 1 to the welding light is 80%, and the transmittance of the silicone rubber pad 3 to the welding light is 90%, which is sufficient to ensure that the welding light passes through the upper splint and the silicon rubber pad smoothly. At the beginning of welding, the upper splint 1 with the silicone rubber pad 3 placed in the groove is fixed, and the lower splint with the sample 6 to be welded moves upwards under the action of external force, and is completely fitted with the upper splint. The length and width of the sample 6 to be welded are , height are 6cm, 6cm, 5mm respectively. The welding work can then be started.

Example 2

As shown in Figure 2, a fixture applied to the welding and sealing process of a flow battery includes an upper splint 1 with a groove 2, and the length, width and height of the groove 2 are 8cm, 8cm, and 3mm respectively; The lower splint 4 of groove 5, the length, width and height of groove 5 are respectively 6cm, 6cm, 3mm; Silicone rubber pad 3 is placed in the groove of upper splint 1, and the length, width and height of silicon rubber pad 3 are respectively 8cm , 8cm, 5mm. 7 is the depth rectangular rigid adjustment plate with groove 8, the depth rectangular rigid adjustment plate 7 is inlaid in the groove 5 of the lower splint 4, and the length, width and height of the groove 8 are respectively 4cm, 4cm, 2mm; The transmittance of the upper splint 1 to the welding light is 80%, and the transmittance of the silicone rubber pad 3 to the welding light is 90%, which is sufficient to ensure that the welding light passes through the upper splint and the silicon rubber pad smoothly. At the beginning of welding, the upper splint 1 with the silicone rubber pad 3 placed in the groove is fixed, and the lower splint 4 with the sample 9 to be welded moves upwards under the action of external force, and is completely fitted with the upper splint. The width and height are 4cm, 4cm and 3mm respectively. The welding work can then be started.

Using this method for welding work, a rubber pad is placed in the groove of the upper splint to reduce the stress generated by the contact between the sample and the upper splint, and the elastic characteristics of the rubber pad can be used to make the welding sample and the upper splint completely fit, improving the Welding quality. The lower splint is provided with or without a hard adjusting plate, so that parts to be welded of different shapes and thicknesses can be welded flexibly, and the grooves on the lower splint or the grooves on the hard adjusting plate can be used to The sample to be welded is firmly fixed without offset and dislocation, and the welding accuracy is improved. This in turn improves the reliability of the flow battery sealing process.

Claims (8)

1. a clamp applied to the welding and sealing process of the liquid flow battery, is characterized in that: the clamp comprises a transparent upper splint and a lower splint, and the transparent upper splint is placed above the lower splint, and the lower surface of the upper splint is a plane, and its lower surface or A transparent elastic rubber plate is arranged in the middle of the lower surface; the upper surface of the lower splint is flat, and a rectangular groove is arranged in the middle of the upper surface. In the area; no or more than 1 or 2 rectangular rigid adjustment plates of the same or different depths are arranged in the rectangular groove, and the shape and size of the rectangular rigid adjustment plate are the same as those of the rectangular groove parallel to the surface of the plate. The cross-sectional shape and size are the same or equivalent. 2. The clamp according to claim 1, wherein: A groove is arranged in the middle of the lower surface of the upper splint, the elastic rubber plate is placed in the groove, and the thickness of the elastic rubber plate is greater than the depth of the groove, the middle groove of the lower surface of the upper splint is arranged opposite to the rectangular groove on the upper surface of the lower splint, The projection of the rectangular groove on the lower surface of the upper splint is located in the middle groove of the lower surface of the upper splint. 3. The clamp according to claim 1, wherein: The adjusting plate is a flat plate with a groove in the middle of the upper surface; Between different adjusting plates with grooves: the depth of the grooves is the same, and the cross-sectional shape and/or size of the grooves parallel to the surface of the plate are different; or, the depth of the grooves is different, and the grooves parallel to the surface of the plate are different. The cross-sectional shapes and/or dimensions are the same or different. 4. The clamp according to claim 1, wherein: The regulating plate is a flat plate with through holes in the middle of the upper surface; between different regulating plates with through holes: the cross-sectional shape and/or size of the grooves parallel to the plate surface are different. 5. The fixture according to claim 1, wherein the light transmittance of the transparent upper splint should be no less than 30%. 6. The fixture according to claim 1, wherein the light transmittance of the rubber plate should not be less than 30%. 7. According to any described fixture of claim 1-6, it is characterized in that: the sample to be welded is placed in the rectangular groove of the lower splint or placed in the rectangular groove of the lower splint by a hard adjusting plate, and the welded sample is placed in the rectangular groove of the lower splint. The upper surface of the sample is located above the upper surface of the lower splint. 8. The clamp according to claim 7, characterized in that: a second-level groove is provided at the bottom of the rectangular groove of the lower splint; There is no or third-level groove at the bottom of the second-level groove; There is no or fourth-level groove at the bottom of the third-level groove; There is no or fifth-level groove at the bottom of the fourth-level groove; The bottom of the fifth-level groove is not provided or is provided with a sixth-level groove.

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