CN220454101U - Bipolar plate drying device - Google Patents

Abstract

The utility model relates to the technical field of batteries and discloses a bipolar plate drying device which comprises a heating box body and a blowing mechanism; wherein: the heating box body is provided with a containing cavity capable of containing the bipolar plate, and is provided with a heating element capable of heating the containing cavity; the purge mechanism is mounted on the heating box body, and the purge mechanism is configured to be capable of delivering purge wind flowing along the flow passage direction of the bipolar plate to purge the flow passage of the bipolar plate. The purging mechanism is assembled on the heating box body, so that the flow channel can be purged while the bipolar plate is subjected to drying operation, redundant moisture and impurities are effectively removed, and watermarks left on the bipolar plate after the drying operation is completed are greatly reduced. In addition, set up purge mechanism, can also improve drying efficiency.

Description

Bipolar plate drying device

Technical Field

The utility model relates to the technical field of batteries, in particular to a bipolar plate drying device.

Background

Bipolar plates, also known as current collector plates, are one of the important components of fuel cells. The function of the bipolar plates is to provide a gas flow path, prevent hydrogen and oxygen in the cell gas chamber from being crossed, and establish a current path between the anode and cathode in series. The bipolar plate thickness should be as thin as possible to reduce the conduction resistance to current and heat while maintaining a certain mechanical strength and good gas barrier effect.

Bipolar plates are the main component of the stack and can be currently divided into graphite bipolar plates and metal bipolar plates according to materials. Taking the two bipolar plates as examples, cleaning is needed before finished product detection and encapsulation to remove dust and impurities on the surfaces.

Currently, after the bipolar plate is cleaned, the bipolar plate is transferred from the water tank to an oven to dry the bipolar plate surface. However, due to the fact that a large number of flow channel structures exist on the surface of the bipolar plate, watermarks are easily left after the bipolar plate is dried by a conventional oven.

Disclosure of Invention

The utility model aims to solve the problem that watermarks are easily left after a bipolar plate is dried by a conventional oven in the prior art, and provides a bipolar plate drying device which is provided with a blowing mechanism capable of sending blowing wind flowing along the flow channel direction of the bipolar plate so as to blow the flow channel of the bipolar plate.

In order to achieve the above object, an aspect of the present utility model provides a bipolar plate drying apparatus, comprising:

a heating box having a receiving cavity capable of receiving a bipolar plate, the heating box being equipped with a heating element capable of heating the receiving cavity; and

and a purge mechanism which is mounted on the heating box body and is configured to be capable of delivering purge wind flowing along the flow passage direction of the bipolar plate to purge the flow passage of the bipolar plate.

According to the technical scheme, the purging mechanism is assembled on the heating box body, so that the bipolar plate can be purged while being dried, redundant moisture and impurities can be effectively removed, and watermarks left on the bipolar plate after the drying operation is completed are greatly reduced. In addition, set up purge mechanism, can also improve drying efficiency.

Preferably, the purging mechanism comprises a purging body fitted within the accommodation cavity, the purging body being provided with a wind chamber having an air inlet; the purge mechanism further includes a tuyere in communication with the wind chamber, the tuyere having an air outlet directed toward the mouth of the flow channel of the bipolar plate.

Preferably, the tuyere is elongated, and the air outlet is provided to extend in a thickness direction of the bipolar plate.

Preferably, the purging mechanism comprises an air guide pipe inserted on the wall of the heating box body, and the air guide pipe is assembled at the air inlet so as to be capable of conveying compressed air into the air cavity.

Preferably, the air guide pipe and the purging main body are integrated.

Preferably, the bipolar plate drying device comprises a control valve assembled in the air guide pipe, and the control valve can control the flow state of fluid in the air guide pipe.

Preferably, the bipolar plate drying device comprises a plurality of the purging mechanisms, and the plurality of the purging mechanisms are distributed along the arrangement direction of a plurality of flow channels of the bipolar plate.

Preferably, the bipolar plate drying device comprises a support frame which is arranged in the accommodating cavity and can bear the bipolar plate.

Preferably, the support frame includes a frame body provided with a plurality of receiving cells capable of receiving the respective bipolar plates placed upright, respectively, the plurality of receiving cells extending in a thickness direction of the bipolar plates.

Preferably, the support frame comprises a drawer frame which is arranged in the corresponding receiving compartment in a drawer-type manner, said drawer frame being able to fix and carry the corresponding bipolar plate in an upright position.

Drawings

Fig. 1 is a schematic cross-sectional view of a bipolar plate drying apparatus according to a preferred embodiment of the present utility model;

fig. 2 is a schematic top view of the bipolar plate drying apparatus shown in fig. 1.

Description of the reference numerals

10-a bipolar plate drying device; 12-heating the box body; 120-accommodating the cavity; 14-a purge mechanism; 140-purging the body; 142-wind chamber; 144-tuyere; 148-air guide pipes; 16-a support frame; 160-a frame body; 18-a supporting frame; 20-bipolar plate.

Detailed Description

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, left, right" and the like are used generally to refer to the orientation understanding shown in the drawings and in practice, and "inner, outer" refer to the inner, outer of the outline of the components.

The surface of the bipolar plate 20 is provided with a plurality of flow channels. The flow channels may extend along the length of the bipolar plate. The flow channels of the bipolar plate 20 extend in a left-right direction as viewed in fig. 1.

The present utility model provides a bipolar plate drying apparatus, the bipolar plate drying apparatus 10 comprises a heating box 12, the heating box 12 is provided with a containing cavity 120 capable of containing a bipolar plate 20, when the bipolar plate 20 is dried, the bipolar plate 20 can be vertically placed in the containing cavity 120, in particular, the long side of the bipolar plate 20 can be supported in the containing cavity 120, the heating box 12 is provided with a heating element capable of heating the containing cavity 120, and thus the drying operation of the bipolar plate 20 can be realized; the bipolar plate drying apparatus 10 further includes a purge mechanism 14, the purge mechanism 14 is mounted on the heating case 12, and the purge mechanism 14 is configured to be able to send out purge wind flowing along the flow passage direction of the bipolar plate 20 to purge the flow passage of the bipolar plate 20. By assembling the purging mechanism 14 on the heating box 12, the flow channel can be purged while the bipolar plate 20 is dried, so that redundant moisture and impurities are effectively removed, and watermarks left on the bipolar plate 20 after the drying operation is completed are greatly reduced. In addition, the provision of the purge mechanism 14 also improves the drying efficiency.

As shown in connection with fig. 1 and 2, the purge mechanism 14 may include a purge body 140 that fits within the receiving cavity 120, the purge body 140 being provided with a plenum 142, the plenum 142 having an air inlet into the plenum 142 for compressed gas, such as compressed air; the purge mechanism 14 may also include a tuyere 144 in communication with the air chamber 142, the tuyere 144 may have an air outlet directed toward the mouth of the flow channel of the bipolar plate 20, it being understood that the air outlet of the tuyere 144 may purge air toward the mouth of the flow channel to facilitate drying of moisture within the flow channel.

The air outlet may be configured to extend along the thickness direction of the bipolar plate 20, so that the flow channels on two sides of the bipolar plate 20 may be purged, thereby further reducing watermarks left on the bipolar plate 20 and further improving drying efficiency. It should be noted that, the bipolar plates 20 are vertically disposed along the thickness direction of the bipolar plates 20, so that the air outlet extending along the thickness direction of the bipolar plates 20 can purge the flow channels on the bipolar plates 20 at the same time, thereby improving the purging efficiency.

The purge mechanism 14 may include an air guide tube 148 interposed on the wall of the heating cabinet 12, and the air guide tube 148 may be fitted at the air inlet to be able to deliver compressed air into the air chamber 142. An air duct 148 may be provided to facilitate the ingress of compressed air into the air cavity 142.

To make the structure of the purge mechanism 14 more robust, the air guide tube 148 and the purge body 140 may be formed as one piece. In addition, the purge body 140 and the air nozzle 144 may be one piece, which may further enhance the structural stability of the purge mechanism 14.

In addition, a control valve may be mounted on the air guide pipe 148, where the control valve can control the flow state of the fluid in the air guide pipe 148, and it is understood that the opening and closing of the control valve can control the flow of the fluid in the air guide pipe 148, i.e. the compressed air. Wherein the control valve may be an electromagnetic control valve. In addition, the photoelectric sensor can also be arranged on the U85053DXJT of the air guide pipe

A pressure regulating valve is provided at 148 to regulate the amount of fluid, i.e., compressed air, intake.

As shown in fig. 1, a plurality of purge mechanisms 14 may be provided, and the plurality of purge mechanisms 14 may be distributed along the arrangement direction of the plurality of flow channels of the bipolar plate 20. From the orientation shown in fig. 1, the plurality of flow channels of the bipolar plate 20 may be aligned along the height of the bipolar plate 20 such that the plurality of purging mechanisms 14 may be aligned along the height of the bipolar plate 20 and the plurality of purging mechanisms 14 may simultaneously purge the plurality of flow channels of the bipolar plate 20, thereby improving the purging efficiency.

As shown in connection with fig. 1 and 2, a support frame 16 capable of carrying the bipolar plate 20 may be disposed within the receiving cavity 120, such that the bipolar plate 20 may be stably placed within the heating housing 12 without being easily blown down by the blown compressed air.

The support frame 16 may include a frame body 160, and the frame body 160 may be provided with a plurality of receiving compartments capable of receiving the respective vertically placed bipolar plates 20, respectively, and the plurality of receiving compartments may extend in a thickness direction of the bipolar plates 20, such that the plurality of vertically placed bipolar plates 20 may be placed in the respective receiving compartments, respectively, and such that the plurality of vertically placed bipolar plates 20 may extend in the thickness direction of the bipolar plates 20. In addition, the plurality of receiving compartments may allow the plurality of vertically disposed bipolar plates 20 to occupy independent working spaces, respectively, which do not interfere with each other.

To facilitate the removal and placement of the bipolar plates 20, a drawer frame may be assembled that is drawn into the corresponding receiving compartment, and the drawer frame may be configured to secure and carry the corresponding bipolar plates 20 in an upright position. Thus, when it is desired to place the bipolar plate 20, the corresponding drawer frame may be pulled out and the bipolar plate 20 secured to the drawer frame, after which the drawer frame is pushed into the corresponding receiving compartment.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a number of simple variants of the technical solution of the utility model are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

Claims (10)

1. Bipolar plate drying device, characterized in that bipolar plate drying device (10) includes:

-a heating cabinet (12), the heating cabinet (12) having a containing cavity (120) capable of containing a bipolar plate (20), the heating cabinet (12) being equipped with a heating element capable of heating the containing cavity (120); and

-a purge mechanism (14), the purge mechanism (14) being fitted on the heating box (12), and the purge mechanism (14) being arranged to be able to send out purge wind flowing along the flow path direction of the bipolar plate (20) to purge the flow path of the bipolar plate (20).

2. The bipolar plate drying apparatus according to claim 1, wherein the purge mechanism (14) comprises a purge body (140) fitted within the accommodation cavity (120), the purge body (140) being provided with a wind chamber (142), the wind chamber (142) having a gas inlet; the purge mechanism (14) further includes a tuyere (144) in communication with the wind chamber (142), the tuyere (144) having an air outlet directed toward the mouth of the flow passage of the bipolar plate (20).

3. The bipolar plate drying apparatus according to claim 2, wherein the tuyere (144) is elongated, and the air outlet is provided to extend in a thickness direction of the bipolar plate (20).

4. Bipolar plate drying apparatus according to claim 2, wherein the purge means (14) comprises an air duct (148) inserted on the wall of the heating cabinet (12), said air duct (148) being fitted at the air inlet to enable compressed air to be fed into the air chamber (142).

5. The bipolar plate dryer of claim 4 wherein said air duct (148) and said purge body (140) are one piece.

6. The bipolar plate drying apparatus as claimed in claim 4, wherein said bipolar plate

The drying device (10) comprises a control valve assembled in the air guide pipe (148), and the control valve can control the flow state of fluid in the air guide pipe (148).

7. The bipolar plate drying apparatus according to claim 2, wherein the bipolar plate drying apparatus (10) includes a plurality of the purge mechanisms (14), the plurality of purge mechanisms (14) being distributed along an arrangement direction of a plurality of flow passages of the bipolar plate (20).

8. Bipolar plate drying apparatus according to any one of claims 1-7, wherein the bipolar plate drying apparatus (10) comprises a support frame (16) arranged within the receiving cavity (120) capable of carrying the bipolar plate (20).

9. The bipolar plate drying apparatus according to claim 8, wherein the support frame (16) includes a frame body (160), the frame body (160) being provided with a plurality of receiving cells capable of receiving the respective bipolar plates (20) placed upright, respectively, the plurality of receiving cells extending in a thickness direction of the bipolar plates (20).

10. Bipolar plate drying apparatus according to claim 9, wherein the support frame (16) comprises a drawer frame which is arranged in a respective receiving compartment in a drawer-type manner, said drawer frame being able to fix and carry a respective bipolar plate (20) placed upright.