Dipping equipment

Abstract

The utility model relates to the technical field of battery production impregnation, in particular to impregnation equipment which comprises a sealing tank, impregnation liquid is contained in the sealing tank, and the sealing tank comprises a tank body and a tank cover which are detachably and hermetically connected; the material frame is arranged in the sealing tank and is used for loading a to-be-impregnated workpiece; the linear driver is used for driving the material frame to lift; vacuumizing equipment and supercharging equipment; the linear driver can drive the workpiece to be impregnated in the material frame to be switched between an impregnation station where the workpiece is completely immersed in the impregnation liquid and a material taking and placing station where the workpiece is suspended above the liquid level of the impregnation liquid. On one hand, air in the sealing tank and air in a cavity in the workpiece to be impregnated are pumped out through the vacuumizing equipment, so that impregnation liquid smoothly enters the cavity in the workpiece to be impregnated, and on the other hand, the pressure in the sealing tank is increased through the supercharging equipment, so that the impregnation liquid further enters the cavity in the workpiece to be impregnated more quickly. Therefore, all open holes of the to-be-impregnated workpiece can be sealed, and the sealing capability of the workpiece is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production impregnation technical field, concretely is a kind of impregnation equipment. BACKGROUND

[0002] Both hydrogen fuel cells and flow batteries are important electrochemical energy storage and power generation technologies. A bipolar plate is one of the important components of hydrogen fuel cells and flow batteries, which is usually made of two thin graphite materials, has the same shape and size, and is connected together by a certain way. The main functions of the bipolar plate include distributing reaction gases (such as hydrogen and oxygen), conducting electricity and heat, providing support for the membrane electrode, and blocking reaction gases. In fuel cells, the bipolar plate also plays a role in collecting and leading out the current generated by the reaction.

[0003] The impregnation equipment is a commonly used equipment in the production process of the bipolar plate, and its working principle is generally to put the workpiece to be impregnated into the impregnation liquid to realize the impregnation of the workpiece. However, due to the existence of a large number of internal cavities on the bipolar plate made of graphite material, the conventional impregnation equipment cannot completely impregnate the bipolar plate made of graphite material. SUMMARY

[0004] The utility model aims at providing an impregnation equipment to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An impregnation equipment comprises:

[0007] A sealed tank, which contains impregnation liquid inside, comprises a tank body and a tank cover which are detachably and sealingly connected;

[0008] A material frame, which is arranged inside the sealed tank, is used to load workpieces to be impregnated;

[0009] A linear actuator, which is used to drive the material frame to move up and down;

[0010] A vacuum extraction device, which is used to extract air inside the sealed tank; and

[0011] A pressure boosting device, which is used to increase the pressure inside the sealed tank;

[0012] The linear actuator can drive the workpieces to be impregnated in the material frame to switch between an impregnation station where the workpieces are completely immersed in the impregnation liquid and a material loading and unloading station where the workpieces are suspended above the liquid surface of the impregnation liquid.

[0013] Preferably, the linear actuator is fixedly arranged inside the sealed tank.

[0014] Preferably, the linear actuator comprises a hydraulic cylinder.

[0015] Preferably, the inner wall of the tank body is fixed with a mounting seat, the mounting seat has a vertical plane, and the linear driver is fixedly installed on the vertical plane.

[0016] Preferably, the mounting seat further has an arc surface, the arc surface is arranged concentrically with the tank body, and the arc surface is fixedly attached to the inner peripheral wall of the tank body in a sealing manner;

[0017] A first power input hole is formed through the vertical plane and the arc surface of the mounting seat;

[0018] The inner peripheral wall of the tank body covered by the arc surface is provided with a second power input hole corresponding to the first power input hole;

[0019] The power source of the linear driver is input through the first power input hole and the second power input hole.

[0020] Preferably, a first connecting plate is fixedly connected between the movable end of the linear driver and the material frame.

[0021] Preferably, a vertically arranged guide rail is fixedly arranged inside the tank body, and a sliding block is slidingly arranged on the guide rail.

[0022] The material frame and the sliding block are fixedly connected through a second connecting plate.

[0023] Preferably, two guide rails are arranged corresponding to each linear driver, and the two guide rails are arranged on the two sides of the linear driver.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] The vacuumizing equipment and the pressure increasing equipment are arranged, on one hand, the vacuumizing equipment is used to extract the air in the sealed tank and the air in the internal cavity of the workpiece to be impregnated, so that the impregnating liquid can smoothly enter the internal cavity of the workpiece to be impregnated, on the other hand, the pressure in the sealed tank is increased by the pressure increasing equipment, so as to further accelerate the impregnating liquid to enter the internal cavity of the workpiece to be impregnated, so that all open holes of the workpiece to be impregnated can be closed, and the sealing capability of the workpiece is improved; at the same time, the linear driver is arranged, so that the material frame can be lifted in the sealed tank under vacuum negative pressure and positive pressure, and the detachable connection design of the tank body and the tank cover facilitates the taking and placing of the workpiece to be impregnated. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of the present application;

[0027] Figure 2 It is a sectional view of the sealed tank of the present application;

[0028] Figure 3 It is a structure schematic view of the material frame located in the material taking and placing station.

[0029] Figure 4 The structure schematic view of the material frame in the dipping station of the utility model.

[0030] In the figure: 1, sealed tank; 11, tank body; 12, tank cover; 2, material frame; 3, linear driver; 4, vacuumizing equipment; 5, pressurizing equipment; 6, mounting seat; 61, vertical plane; 62, arc surface; 63, first power input hole; 64, second power input hole; 7, first connecting plate; 8, guide rail; 81, sliding block; 9, second connecting plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0033] A dipping equipment comprises a sealed tank 1, a material frame 2, a linear driver 3, a vacuumizing equipment 4 and a pressurizing equipment 5, and the five parts will be described in detail below.

[0034] The sealed tank 1 contains dipping liquid, and the specific type of the dipping liquid is not limited herein. Exemplarily, the dipping liquid can be resin solution, and the sealed tank 1 can be made of stainless steel. The sealed tank 1 comprises a tank body 11 and a tank cover 12 which are detachably and sealingly connected. For example, the tank cover 12 can be pressed against the top of the tank body 11 by a hydraulic cylinder or the like to realize the sealing connection between the tank body 11 and the tank cover 12. Meanwhile, this mode can realize the separation between the tank cover 12 and the tank body 11 by adjusting the position of the hydraulic cylinder piston rod, facilitating the taking and placing of the workpiece to be dipped.

[0035] The material frame 2 is arranged in the inner middle position of the sealed tank 1, and is used for loading the workpiece to be dipped. In this embodiment, the material frame 2 is used for loading the graphite bipolar plate to be dipped. Further, the specific shape and structure of the material frame 2 are not limited in the utility model. Exemplarily, as shown in the figure, the material frame 2 can be a square frame structure with strip-shaped holes.

[0036] The linear driver 3 is used to drive the lifting of the material frame 2. Specifically, the movable end of the linear driver 3 (when the linear driver 3 is a hydraulic cylinder, the movable end of the linear driver 3 is the free end of the hydraulic cylinder piston rod) is fixedly connected with the first connecting plate 7 between the linear driver 3 and the material frame 2, and the linear driver 3 can drive the conversion of the to-be-impregnated workpiece in the material frame 2 between the impregnation position fully immersed in the impregnation liquid and the material taking and placing position hovering above the liquid level of the impregnation liquid. The setting position of the linear driver 3 is not specifically limited here, which can be set outside the sealed tank 1 (when the linear driver 3 is set outside the sealed tank 1, it is necessary to ensure that the sealed tank 1 remains in a sealed state), or can be fixedly set inside the sealed tank 1, and the linear driver 3 is used to drive the lifting of the material frame 2. Further, the linear driver 3 can also be an electric cylinder, a gas cylinder, etc. In the present embodiment, the linear driver 3 comprises a hydraulic cylinder, that is, the lifting of the material frame 2 is driven by the hydraulic cylinder.

[0037] The vacuumizing device 4 is used to extract the air in the sealed tank 1. The specific model of the vacuumizing device 4 is not specifically limited here, and can be adaptively selected according to the actual situation. For example, the model of the vacuumizing device 4 can be the 2BV-2060 type vacuum pump under the Haitan Pump Industry Co., Ltd. of Yongjia County. The vacuumizing device 4 is used to: smoothly enter the impregnation liquid into the internal cavity of the to-be-impregnated workpiece, close all open holes, and improve the sealing capacity of the workpiece.

[0038] The pressurizing device 5 is used to increase the pressure in the sealed tank 1. The specific model of the pressurizing device 5 is not specifically limited here. For example, the model of the pressurizing device 5 can be the DTE type pressurizing pump under the Shandong Xinnuo Detection Equipment Co., Ltd. The pressurizing device 5 can increase the pressure of the impregnation liquid, so that the impregnation liquid can quickly enter the internal cavity of the to-be-impregnated workpiece.

[0039] The basic working principle of the above technical solution is: the linear driver 3 is used to adjust the material frame 2 to the material taking and placing position, then the tank cover 12 is opened, the to-be-impregnated workpiece is placed into the internal cavity of the material frame 2, and then the tank cover 12 is closed to ensure that the sealed tank 1 remains in a sealed state; then the linear driver 3 is used to adjust the material frame 2 to the impregnation position; then the vacuumizing device 4 is used to extract the air in the sealed tank 1, so that the impregnation liquid smoothly enters the internal cavity of the to-be-impregnated workpiece, closes all open holes, and improves the sealing capacity of the workpiece; then the pressurizing device 5 is used to increase the pressure in the sealed tank 1, so that the impregnation liquid can penetrate into the internal cavity of the to-be-impregnated workpiece; after a certain period of time, the linear driver 3 is used to pull the material frame 2 from the impregnation position back to the material taking and placing position, then the tank cover 12 is opened, and the impregnated workpiece is taken out from the material frame 2.

[0040] The technical scheme is characterized in that: the vacuumizing equipment 4 and the pressure increasing equipment 5 are arranged, on one hand, the vacuumizing equipment 4 is used to extract the air in the sealed tank 1 and the air in the air hole of the workpiece to be impregnated, so that the impregnating liquid can smoothly enter the air hole of the workpiece to be impregnated, on the other hand, the pressure in the sealed tank 1 is increased by the pressure increasing equipment 5, so that the impregnating liquid can further enter the air hole of the workpiece to be impregnated, thereby all open holes of the workpiece to be impregnated can be sealed, and the sealing capacity of the workpiece is improved; meanwhile, the linear driver 3 is arranged, so that the lifting function of the material frame 2 in the sealed tank 1 under vacuum negative pressure and positive pressure can be realized, and the detachable connection design of the tank body 11 and the tank cover 12 is matched, so that the workpiece to be impregnated can be conveniently taken and placed.

[0041] The inner wall of the tank body 11 is fixed with a mounting seat 6, the mounting seat 6 has a vertical plane 61, and the linear driver 3 is fixedly installed on the vertical plane 61; the mounting seat 6 also has an arc-shaped surface 62, the arc-shaped surface 62 is concentrically arranged with the tank body 11, and the arc-shaped surface 62 is sealingly and fixedly attached to the inner peripheral wall of the tank body 11; a first power input hole 63 is formed through the vertical plane 61 and the arc-shaped surface 62 of the mounting seat 6; a second power input hole 64 corresponding to the first power input hole 63 is formed in the inner peripheral wall of the tank body 11 covered by the arc-shaped surface 62; and the power source of the linear driver 3 is input through the first power input hole 63 and the second power input hole 64. By arranging the first power input hole 63 and the second power input hole 64 on the inner wall of the tank body 11 covered by the arc-shaped surface 62 of the mounting seat 6, since the arc-shaped surface 62 is sealingly and fixedly attached to the inner peripheral wall of the tank body 11, when the linear driver 3 is arranged in the sealed tank 1, the sealing performance of the entire sealed tank 1 can be effectively improved.

[0042] The vertical guide rails 8 are fixedly arranged in the tank body 11, and the sliding blocks 81 are slidingly arranged on the guide rails 8; the material frame 2 is fixedly connected with the sliding blocks 81 through the second connecting plates 9. Furthermore, as shown in the figure, the guide rails 8 are fixedly installed on the vertical plane 61 of the mounting seat 6. The guide rails 8, the sliding blocks 81 and the second connecting plates 9 can further improve the stability of the material frame 2 during lifting.

[0043] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An impregnation apparatus, characterized in that, The application relates to a sealing tank, which is internally filled with immersion liquid and comprises a detachably sealingly connected tank body and tank cover; a material frame arranged in the interior of the sealing tank and used for loading workpieces to be immersed; a linear driver used for driving the material frame to lift; a vacuumizing device used for extracting air in the sealing tank; and a pressure increasing device used for increasing the pressure in the sealing tank; wherein the linear driver can drive the workpieces to be immersed in the material frame to switch between an immersion station, in which the workpieces are completely immersed in the immersion liquid, and a material loading and unloading station, in which the workpieces are suspended above the liquid surface of the immersion liquid. The linear driver is fixedly arranged in the interior of the sealing tank. The linear driver comprises a hydraulic cylinder. The inner wall of the tank body is fixedly provided with a mounting seat, which has a vertical plane, and the linear driver is fixedly arranged on the vertical plane. The mounting seat further has an arc-shaped plane, which is concentrically arranged with the tank body and is sealingly fixedly arranged with the inner peripheral wall of the tank body. A first power input hole is formed through the vertical plane and the arc-shaped plane of the mounting seat. The inner peripheral wall of the tank body, which is covered by the arc-shaped plane, is provided with a second power input hole corresponding to the first power input hole. The power source of the linear driver is input through the first power input hole and the second power input hole.

2. An impregnation apparatus according to claim 1, characterized in that A first connecting plate is fixedly connected between the movable end of the linear driver and the material frame.

3. An impregnation apparatus according to claim 1, characterized in that A vertically arranged guide rail is fixedly arranged in the interior of the tank body, and a sliding block is slidingly arranged on the guide rail.

4. An impregnation apparatus according to claim 2, wherein The material frame is fixedly connected with the sliding block through a second connecting plate.

5. An impregnation apparatus according to claim 4, wherein Two guide rails are arranged on the two sides of each linear driver. ​ ​ ​ 6. An impregnation apparatus according to claim 1, wherein ​ 7. An impregnation apparatus according to claim 1, wherein ​ ​ 8. An impregnation apparatus according to claim 7, characterised in that ​

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