Dipping and stirring device for bipolar plate of graphite battery

Abstract

The utility model discloses a dipping and stirring device for a bipolar plate of a graphite battery, which comprises a stirring container which is a stirring tank with a cover body; a stirring roller body of the stirring mechanism is arranged on a cover body and goes deep into the stirring tank, and the stirring roller body is driven to rotate by a stirring motor arranged at the upper end of the cover body; a plurality of stirring cutter head structures are arranged on the stirring roller body; the stirring cutter head structure comprises a stirring disc body, a circle of spiral blades are arranged in the circumferential direction of the stirring disc body, and the spiral blades are upper spiral blades and lower spiral blades which are alternately arranged; an impregnant inlet is formed in the side part of the stirring tank and is connected with an impregnant storage tank through an impregnant input pipeline; a vacuum air port is formed in the stirring container, a vacuum pump is connected to the vacuum air port through a vacuum pipeline, and a negative pressure meter for reading the pressure in the container is arranged on the stirring container; a glue outlet is formed in the lower end of the stirring container, and the glue outlet is connected with an impregnated material storage tank through a glue outlet pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel graphite battery bipolar plate manufacturing field, concretely relates to a kind of graphite battery bipolar plate is used impregnation stirring device. BACKGROUND

[0002] As a porous material, it is crucial to ensure no gas leakage when making battery bipolar plate. Impregnation process is a key technology for plugging the pores of battery bipolar plate to ensure that it does not leak during use.

[0003] However, the current impregnation equipment has a series of problems that need to be solved. First, in the stirring process of the impregnating agent, the stirring blades as shown in CN200620079414.9 have the problem of uneven stirring.

[0004] This situation directly leads to inconsistent performance of graphite bipolar plates, seriously affecting the stability of product quality and causing many inconveniences in subsequent production and use.

[0005] It is difficult to effectively remove bubbles during impregnation. These residual bubbles can adversely affect the impregnation effect, greatly reducing the plugging effect and potentially causing battery bipolar plates to leak during use.

[0006] The production efficiency of existing impregnation equipment is low. In the face of large-scale production demand, its production capacity is obviously insufficient, and it cannot meet the market supply requirements. UTILITY MODEL CONTENTS

[0007] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide an impregnation stirring device for graphite battery bipolar plates.

[0008] In order to achieve the purpose of the utility model, the technical scheme adopted is:

[0009] An impregnation stirring device for graphite battery bipolar plates comprises:

[0010] A stirring container, which is a stirring tank with a cover;

[0011] The stirring roller body of the stirring mechanism is arranged on the cover and extends into the stirring tank, and is driven to rotate by a stirring motor arranged on the upper end of the cover.

[0012] A plurality of stirring cutter disc structures are arranged on the stirring roller body.

[0013] The stirring cutter disc structure comprises a stirring disc body, a circle of spiral blades is arranged around the stirring disc body, and the spiral blades are alternately arranged upper spiral blades and lower spiral blades.

[0014] The side of the stirring tank is provided with an impregnating agent inlet connected with an impregnating agent storage tank through an impregnating agent input pipeline;

[0015] The stirring container is provided with a vacuum air port connected with a vacuum pump through a vacuum pipeline,

[0016] The stirring container is provided with a negative pressure gauge for reading the pressure in the container;

[0017] The lower end of the stirring container is provided with a glue outlet connected with an impregnating material storage tank through a glue outlet pipeline.

[0018] In a preferred embodiment of the present application, the stirring motor, the negative pressure gauge and the vacuum pump are controlled by a PLC control box, and the PLC control box controls the on-off switch, sets the stirring motor speed, the vacuum pump value and collects the negative pressure gauge information.

[0019] In a preferred embodiment of the present application, the cover is provided with an observation window.

[0020] In a preferred embodiment of the present application, the impregnating agent input pipeline is a first impregnating agent input pipeline connected with a first impregnating agent storage tank and a second impregnating agent input pipeline connected with a second impregnating agent storage tank, and the first impregnating agent input pipeline or the second impregnating agent input pipeline is respectively provided with a pipeline switch.

[0021] In a preferred embodiment of the present application, the vacuum pipeline is provided with a pipeline switch.

[0022] The present application has the advantages of:

[0023] The present application provides a high-efficiency and uniform impregnating stirring device, which can significantly improve the impregnating effect and production efficiency of fuel cell graphite bipolar plates, and has a wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The present application has the advantages of:

[0025] Figure 2 The present application has the advantages of: DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear and explicit, the utility model will be further described in detail below through the drawings and examples.

[0027] In the description of the utility model, it should be pointed out that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description.

[0028] As shown in Figure 1 The utility model discloses a kind of graphite battery bipolar plate is immersed stirring device as shown in figure 1 or 2, including the stirring container for loading impregnated resin, stirring container is the stirring jar 100 with cover 110.Set up observation window 111 on cover 110.

[0029] Stirring mechanism's stirring roller body 210 is set on cover 110 and is in-depth stirring jar 100, and stirring roller body 210 is driven rotation by stirring motor 220 being set on the upper end of cover 110.

[0030] Multiple stirring cutter disc structures 220 are set on stirring roller body 210, and stirring cutter disc structure 220 includes stirring disc body 221, and a circle of spiral blades 222 is set in the circumferential direction of stirring disc body 221, and spiral blades 222 are upper spiral blades 2221 and lower spiral blades 2222 of alternately arranged.

[0031] The stirring cutter disc structure 220 of the utility model improves design can realize three-dimensional uniform mixing of impregnant, expel internal tiny bubble more fully, so that it is easy to penetrate the pore of battery bipolar plate, improve the impermeability of battery bipolar plate, avoid the appearance of impregnated defective product.

[0032] Impregnant inlet 101 is opened in the side of stirring jar 100, and impregnant inlet 101 is connected with impregnant storage tank 130 by impregnant input pipeline 120.

[0033] The impregnating agent input pipeline 120 is a first impregnating agent input pipeline 121 connected to the first impregnating agent storage tank 131 and a second impregnating agent input pipeline 122 connected to the second impregnating agent storage tank 132, and the pipeline switch 1211 or 1221 is arranged on the first impregnating agent input pipeline 121 or the second impregnating agent input pipeline 122, respectively.

[0034] The cover 110 of the stirring container is provided with a vacuum port 112, and a vacuum pump 150 is connected to the vacuum port 112 through a vacuum pipeline 140. The pipeline switch 1121 is arranged on the vacuum pipeline 112. The vacuum pump 150 is used to remove bubbles during impregnation and stirring to ensure that the impregnating agent fully penetrates.

[0035] The stirring container is provided with a negative pressure gauge 160 for reading the pressure in the container.

[0036] The lower end of the stirring container is provided with a glue outlet 102, and an impregnating material storage tank (not shown in the figure) is connected to the glue outlet 102 through a glue outlet pipeline 170.

[0037] The stirring motor 220, the negative pressure gauge 160 and the vacuum pump 150 are controlled by the PLC control box 180, and the PLC control box 180 controls the switches of the whole device, sets the stirring motor speed, and collects the negative pressure gauge information.

[0038] Because of the above structure, the working principle of the utility model is as follows:

[0039] The barrel impregnating agent is drawn into the stirring container along the arrow direction of the impregnating agent input pipeline.

[0040] The stirring mechanism of the stirring device is started to uniformly mix the impregnating resin and reach the appropriate temperature.

[0041] The vacuum pump is started, and after vacuumizing, the normal pressure is restored, and the internal small bubbles are discharged along the arrow direction of the vacuum pipeline to make the impregnating agent fully penetrate.

[0042] The fully stirred impregnating resin is introduced into the impregnating material storage tank from the glue outlet along the arrow direction of the glue outlet pipeline for subsequent processing.

[0043] Because of the above structure and working principle, the utility model has the following beneficial effects:

[0044] 1. Uniformity: The multi-layer stirring blade structure design ensures uniform mixing of the impregnating agent and avoids local concentration difference.

[0045] 2. High efficiency: The automatic control system greatly improves the production efficiency and is suitable for large-scale production.

[0046] 3. Quality improvement: the vacuum system effectively removes air bubbles, ensuring that the impregnant fully penetrates, improving the performance of the graphite bipolar plate.

[0047] 4. Wide range of applications: can be applied to a variety of impregnated resins.

[0048] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model.

[0049] Those skilled in the art should understand that the utility model is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model. These changes and improvements all fall within the scope of the claimed utility model, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An impregnation and stirring device for graphite battery bipolar plates, characterized in that, include: A mixing container, wherein the mixing container is a mixing tank with a lid; The stirring roller of the stirring mechanism is mounted on the cover and extends into the stirring tank. The stirring roller is driven to rotate by a stirring motor mounted on the upper end of the cover. Multiple stirring blade structures are provided on the stirring roller body; The stirring disc structure includes a stirring disc body, and a ring of spiral blades is arranged around the circumference of the stirring disc body. The spiral blades are alternately arranged upper spiral blades and lower spiral blades. The mixing tank has an impregnating agent inlet on its side, and the impregnating agent inlet is connected to the impregnating agent storage tank through an impregnating agent input pipeline; The stirring container is equipped with a vacuum port, and a vacuum pump is connected to the vacuum port via a vacuum pipeline. The stirring container is equipped with a negative pressure gauge to read the pressure inside the container; The lower end of the mixing container is provided with a glue outlet, and the glue outlet is connected to the impregnation material storage tank through a glue outlet pipe.

2. The immersion stirring device for graphite battery bipolar plates as described in claim 1, characterized in that, The stirring motor, negative pressure gauge, and vacuum pump are controlled by a PLC control box. The PLC control box controls the device switches, sets the stirring motor speed and vacuum pump value, and collects negative pressure gauge information.

3. The immersion stirring device for graphite battery bipolar plates as described in claim 1, characterized in that, An observation window is provided on the cover.

4. The impregnation and stirring device for graphite battery bipolar plates as described in claim 1, characterized in that, The impregnating agent input pipeline is a first impregnating agent input pipeline connected to the first impregnating agent storage tank and a second impregnating agent input pipeline connected to the second impregnating agent storage tank. A pipeline switch is respectively installed on the first impregnating agent input pipeline or the second impregnating agent input pipeline.

5. The immersion stirring device for graphite battery bipolar plates as described in claim 1, characterized in that, A pipeline switch is installed on the vacuum pipeline.

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