Evaporative cooling polar plate structure of fuel cell

Abstract

The utility model provides an evaporative cooling polar plate structure of a fuel cell, which comprises an anode plate, a partition plate and a cathode plate, the partition plate is arranged between the anode plate and the cathode plate, and the partition plate is respectively abutted against the anode plate and the cathode plate; the partition plate comprises a first opening area, a porous evaporation area and a second opening area, and the porous evaporation area is arranged between the first opening area and the second opening area; a plurality of evaporation holes are formed in the porous evaporation area and are mutually independent. The partition plate is arranged between the anode plate and the cathode plate, the porous evaporation area is arranged on the partition plate, and the matched steam outlets are formed in the anode plate and the cathode plate, so that heat of the anode plate and the cathode plate can be transmitted to the porous evaporation area through the evaporation holes and then transmitted to the steam outlets through the porous evaporation area to be discharged to the outside; the heat dissipation efficiency of the polar plate can be effectively improved, so that the interior of the fuel cell stack has good heat dissipation, and the performance of the stack is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a fuel cell evaporation cooling plate structure. Background Art

[0002] Fuel cells are a kind of energy source with high efficiency, high specific energy and low pollution, and have received more and more attention. A fuel cell is composed of a plurality of bipolar plates and membrane electrodes with the same structure stacked together. Each bipolar plate is separately provided with flow field regions, namely a hydrogen flow field, an air flow field and a cooling water flow field, and the internal fluid is evenly distributed into each flow channel as much as possible through the flow field.

[0003] At present, fuel cell stacks are developing towards high power, and the plates are getting larger and larger. Generally, when the fuel cell is operating at full load, the temperature is the highest and the heat dissipation required is the largest. The larger the plate is, the more heat dissipation is required inside; if the local heat dissipation is insufficient, it will lead to too low local performance, and then the performance of the fuel cell stack will decline. Seriously, it may cause irreversible damage to the fuel cell stack. Summary of the Utility Model

[0004] Based on this, the embodiments of the present utility model provide a fuel cell evaporation cooling plate structure, aiming to solve problems such as the performance of the existing plates being affected due to insufficient internal heat dissipation. The plates of the present application have good heat dissipation performance and can effectively improve the performance of the stack.

[0005] To achieve the above object, the embodiments of the present utility model provide a fuel cell evaporation cooling plate structure, including an anode plate, a separator plate and a cathode plate. The separator plate is arranged between the anode plate and the cathode plate, and the separator plate is respectively in contact with the anode plate and the cathode plate;

[0006] The separator plate includes a first orifice area, a porous evaporation area and a second orifice area. The porous evaporation area is arranged between the first orifice area and the second orifice area; a plurality of evaporation holes are arranged on the porous evaporation area, and the plurality of evaporation holes are independently arranged.

[0007] As a preferred embodiment, the first orifice area includes a first air inlet, a first steam outlet, a first cooling water outlet and a first hydrogen inlet. The first steam outlet and the first cooling water outlet are both arranged between the first air inlet and the first hydrogen inlet, and the first steam outlet is arranged between the first air inlet and the first cooling water outlet; the plurality of evaporation holes are all communicated with the first steam outlet.

[0008] As a preferred embodiment, the second orifice area includes a first hydrogen inlet, a first cooling water inlet and a first air outlet, and the first cooling water inlet is arranged between the first hydrogen inlet and the first air outlet.

[0009] As a preferred embodiment, the anode plate includes a third port area, a first flow channel area, and a fourth port area. The first flow channel area is disposed between the third port area and the fourth port area; the first flow channel area is disposed opposite to the porous evaporation area.

[0010] As a preferred embodiment, the third port area includes a second air inlet, a second steam outlet, a second cooling water outlet, and a second hydrogen inlet. The second steam outlet and the second cooling water outlet are both disposed between the second air inlet and the second hydrogen inlet, and the second steam outlet is disposed between the second air inlet and the second cooling water outlet;

[0011] The second air inlet abuts against the first air inlet; the second steam outlet abuts against the first steam outlet; the second cooling water outlet abuts against the first cooling water outlet; the second hydrogen inlet abuts against the first hydrogen inlet.

[0012] As a preferred embodiment, the fourth port area includes a second hydrogen inlet, a second cooling water inlet, and a second air outlet. The second cooling water inlet is disposed between the second hydrogen inlet and the second air outlet;

[0013] The second hydrogen inlet abuts against the first hydrogen inlet; the second cooling water inlet abuts against the first cooling water inlet; the second air outlet abuts against the first air outlet.

[0014] As a preferred embodiment, the cathode plate includes a fifth port area, a second flow channel area, and a sixth port area. The second flow channel area is disposed between the fifth port area and the sixth port area; the second flow channel area is disposed opposite to the porous evaporation area.

[0015] As a preferred embodiment, the fifth port area includes a third air inlet, a third steam outlet, a third cooling water outlet, and a third hydrogen inlet. The third steam outlet and the third cooling water outlet are both disposed between the third air inlet and the third hydrogen inlet, and the third steam outlet is disposed between the third air inlet and the third cooling water outlet;

[0016] The third air inlet abuts against the first air inlet; the third steam outlet abuts against the first steam outlet; the third cooling water outlet abuts against the first cooling water outlet; the third hydrogen inlet abuts against the first hydrogen inlet.

[0017] As a preferred embodiment, the sixth gas area includes a third hydrogen inlet, a third cooling water inlet, and a third air outlet, and the third cooling water inlet is disposed between the third hydrogen inlet and the third air outlet;

[0018] The third hydrogen inlet abuts against the first hydrogen inlet; the third cooling water inlet abuts against the first cooling water inlet; the third air outlet abuts against the first air outlet.

[0019] As a preferred embodiment, the first air inlet is respectively and adaptively disposed with the second air inlet and the third air inlet; the first steam outlet is respectively and adaptively disposed with the second steam outlet and the third steam outlet; the first cooling water outlet is respectively and adaptively disposed with the second cooling water outlet and the third cooling water outlet; the first hydrogen inlet is respectively and adaptively disposed with the second hydrogen inlet and the third hydrogen inlet;

[0020] The first hydrogen inlet is respectively and adaptively disposed with the second hydrogen inlet and the third hydrogen inlet; the first cooling water inlet is respectively and adaptively disposed with the second cooling water inlet and the third cooling water inlet; the first air outlet is respectively and adaptively disposed with the second air outlet and the third air outlet.

[0021] In this application, by arranging a partition between the anode plate and the cathode plate, providing a porous evaporation area on the partition, and providing adaptively arranged steam outlets on the anode plate and the cathode plate, the heat of the anode plate and the cathode plate can be transmitted to the porous evaporation area through the evaporation holes, and then transmitted from the porous evaporation area to the steam outlets and discharged to the outside, which can effectively improve the heat dissipation efficiency of the plates, enable good heat dissipation inside the fuel cell stack, and thus effectively improve the performance of the stack. The structure of this application is simple and beautiful, with low energy consumption, economical and practical, and good processability, and can be applied to a fuel cell system for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 FIG. is an exploded structural schematic diagram of a fuel cell evaporation cooling plate structure according to an embodiment of the present invention.

[0024] The realization of the purpose, functional characteristics, and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the drawings. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom...) involved in the embodiments of the present utility model, then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0027] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0029] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, then the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0030] Specifically, as Figure 1As shown in the figure, an embodiment of the present utility model provides a fuel cell evaporation cooling plate structure, which includes an anode plate 10, a separator 20, and a cathode plate 30. The separator 20 is disposed between the anode plate 10 and the cathode plate 30, and the separator 20 is in contact with the anode plate 10 and the cathode plate 30 respectively;

[0031] The separator 20 includes a first orifice area 21, a porous evaporation area 22, and a second orifice area 23. The porous evaporation area 22 is disposed between the first orifice area 21 and the second orifice area 23; a plurality of evaporation holes 221 are provided on the porous evaporation area 22, and the plurality of evaporation holes 221 are independently arranged.

[0032] As a preferred embodiment, the first orifice area 21 includes a first air inlet 211, a first steam outlet 212, a first cooling water outlet 213, and a first hydrogen inlet 214. The first steam outlet 212 and the first cooling water outlet 213 are both disposed between the first air inlet 211 and the first hydrogen inlet 214, and the first steam outlet 212 is disposed between the first air inlet 211 and the first cooling water outlet 213; the plurality of evaporation holes 221 are all communicated with the first steam outlet 212.

[0033] As a preferred embodiment, the second orifice area 23 includes a first hydrogen inlet 231, a first cooling water inlet 232, and a first air outlet 233. The first cooling water inlet 232 is disposed between the first hydrogen inlet 231 and the first air outlet 233. The first hydrogen inlet 231 is disposed opposite to the first air inlet 211.

[0034] As a preferred embodiment, the anode plate 10 includes a third orifice area 11, a first flow channel area 12, and a fourth orifice area 13. The first flow channel area 12 is disposed between the third orifice area 11 and the fourth orifice area 13; the first flow channel area 12 is disposed opposite to the porous evaporation area 22.

[0035] As a preferred embodiment, the third orifice area 11 includes a second air inlet 111, a second steam outlet 112, a second cooling water outlet 113, and a second hydrogen inlet 114. The second steam outlet 112 and the second cooling water outlet 113 are both disposed between the second air inlet 111 and the second hydrogen inlet 114, and the second steam outlet 112 is disposed between the second air inlet 111 and the second cooling water outlet 113;

[0036] The second air inlet 111 abuts against the first air inlet 211; the second steam outlet 112 abuts against the first steam outlet 212; the second cooling water outlet 113 abuts against the first cooling water outlet 213; the second hydrogen inlet 114 abuts against the first hydrogen inlet 214.

[0037] As a preferred embodiment, the fourth area 13 includes a second hydrogen inlet 131, a second cooling water inlet 132, and a second air outlet 133. The second cooling water inlet 132 is disposed between the second hydrogen inlet 131 and the second air outlet 133.

[0038] The second hydrogen inlet 131 abuts against the first hydrogen inlet 231; the second cooling water inlet 132 abuts against the first cooling water inlet 232; the second air outlet 133 abuts against the first air outlet 233. The first air inlet 211 and the first hydrogen inlet 231 are oppositely arranged.

[0039] As a preferred embodiment, the cathode plate 30 includes a fifth area 31, a second flow channel area 32, and a sixth area 33. The second flow channel area 32 is disposed between the fifth area 31 and the sixth area 33; the second flow channel area 32 is oppositely arranged with the porous evaporation area 22.

[0040] As a preferred embodiment, the fifth area 31 includes a third air inlet 311, a third steam outlet 312, a third cooling water outlet 313, and a third hydrogen inlet 314. Both the third steam outlet 312 and the third cooling water outlet 313 are disposed between the third air inlet 311 and the third hydrogen inlet 314, and the third steam outlet 312 is disposed between the third air inlet 311 and the third cooling water outlet 313.

[0041] The third air inlet 311 abuts against the first air inlet 211; the third steam outlet 312 abuts against the first steam outlet 212; the third cooling water outlet 313 abuts against the first cooling water outlet 213; the third hydrogen inlet 314 abuts against the first hydrogen inlet 214.

[0042] As a preferred embodiment, the sixth area 33 includes a third hydrogen inlet 331, a third cooling water inlet 332, and a third air outlet 333. The third cooling water inlet 332 is disposed between the third hydrogen inlet 331 and the third air outlet 333.

[0043] The third hydrogen inlet 311 abuts against the first hydrogen inlet 231; the third cooling water inlet 312 abuts against the first cooling water inlet 232; the third air outlet 313 abuts against the first air outlet 233. Among them, the third air inlet 311 and the third hydrogen inlet 331 are oppositely arranged.

[0044] As a preferred embodiment, the first air inlet 211 is respectively and adaptively arranged with the second air inlet 111 and the third air inlet 311; the first steam outlet 212 is respectively and adaptively arranged with the second steam outlet 112 and the third steam outlet 312; the first cooling water outlet 213 is respectively and adaptively arranged with the second cooling water outlet 113 and the third cooling water outlet 313; the first hydrogen inlet 214 is respectively and adaptively arranged with the second hydrogen inlet 114 and the third hydrogen inlet 314;

[0045] The first hydrogen inlet 231 is respectively and adaptively arranged with the second hydrogen inlet 131 and the third hydrogen inlet 311; the first cooling water inlet 232 is respectively and adaptively arranged with the second cooling water inlet 132 and the third cooling water inlet 312; the first air outlet 233 is respectively and adaptively arranged with the second air outlet 133 and the third air outlet 313.

[0046] In this application, by arranging a partition between the anode plate and the cathode plate, providing a porous evaporation area on the partition, and providing adaptively arranged steam outlets on the anode plate and the cathode plate, the heat of the anode plate and the cathode plate can be transmitted to the porous evaporation area through the evaporation holes, and then transmitted from the porous evaporation area to the steam outlets and discharged to the outside, which can effectively improve the heat dissipation efficiency of the plates, enable good heat dissipation inside the fuel cell stack, and thus effectively improve the performance of the stack. The structure of this application is simple and beautiful, with low energy consumption, economical and practical, and good processability, and can be used in fuel cell systems.

[0047] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A fuel cell evaporation cooling plate structure, characterized in that, It includes an anode plate, a separator and a cathode plate. The separator is arranged between the anode plate and the cathode plate, and the separator is in contact with the anode plate and the cathode plate respectively; The separator includes a first orifice area, a porous evaporation area and a second orifice area. The porous evaporation area is arranged between the first orifice area and the second orifice area; A plurality of evaporation holes are arranged on the porous evaporation area, and the plurality of evaporation holes are independently arranged.

2. The fuel cell evaporation cooling plate structure according to claim 1, characterized in that The first orifice area includes a first air inlet, a first steam outlet, a first cooling water outlet and a first hydrogen inlet. The first steam outlet and the first cooling water outlet are both arranged between the first air inlet and the first hydrogen inlet, and the first steam outlet is arranged between the first air inlet and the first cooling water outlet; A plurality of the evaporation holes are communicated with the first steam outlet.

3. The fuel cell evaporation cooling plate structure according to claim 2, characterized in that, The second orifice area includes a first hydrogen inlet, a first cooling water inlet and a first air outlet. The first cooling water inlet is arranged between the first hydrogen inlet and the first air outlet.

4. The fuel cell evaporation cooling plate structure according to claim 3, characterized in that, The anode plate includes a third orifice area, a first flow channel area and a fourth orifice area. The first flow channel area is arranged between the third orifice area and the fourth orifice area; The first flow channel area is arranged opposite to the porous evaporation area.

5. The fuel cell evaporation cooling plate structure according to claim 4, wherein The third orifice area includes a second air inlet, a second steam outlet, a second cooling water outlet and a second hydrogen inlet. The second steam outlet and the second cooling water outlet are both arranged between the second air inlet and the second hydrogen inlet, and the second steam outlet is arranged between the second air inlet and the second cooling water outlet; The second air inlet is in contact with the first air inlet; The second steam outlet is in contact with the first steam outlet; The second cooling water outlet is in contact with the first cooling water outlet; The second hydrogen inlet is in contact with the first hydrogen inlet.

6. The fuel cell evaporation cooling plate structure according to claim 5, characterized in that, The fourth orifice area includes a second hydrogen inlet, a second cooling water inlet and a second air outlet. The second cooling water inlet is arranged between the second hydrogen inlet and the second air outlet; The second hydrogen inlet is in contact with the first hydrogen inlet; The second cooling water inlet is in contact with the first cooling water inlet; The second air outlet is in contact with the first air outlet.

7. The fuel cell evaporation cooling plate structure according to claim 6, wherein The cathode plate includes a fifth orifice area, a second flow channel area and a sixth orifice area. The second flow channel area is arranged between the fifth orifice area and the sixth orifice area; The second flow channel area is arranged opposite to the porous evaporation area.

8. The fuel cell evaporation cooling plate structure according to claim 7, characterized in that, The fifth orifice area includes a third air inlet, a third steam outlet, a third cooling water outlet and a third hydrogen inlet. The third steam outlet and the third cooling water outlet are both arranged between the third air inlet and the third hydrogen inlet, and the third steam outlet is arranged between the third air inlet and the third cooling water outlet; The third air inlet is in contact with the first air inlet; The third steam outlet is in contact with the first steam outlet; The third cooling water outlet is in contact with the first cooling water outlet; The third hydrogen inlet is in contact with the first hydrogen inlet.

9. The fuel cell evaporation cooling plate structure according to claim 8, characterized in that, The sixth gas area includes a third hydrogen inlet, a third cooling water inlet, and a third air outlet, and the third cooling water inlet is arranged between the third hydrogen inlet and the third air outlet; The third hydrogen inlet abuts against the first hydrogen inlet; the third cooling water inlet abuts against the first cooling water inlet; the third air outlet abuts against the first air outlet.

10. The fuel cell evaporation cooling plate structure according to claim 9, wherein The first air inlet is respectively and adaptively arranged with the second air inlet and the third air inlet; the first steam outlet is respectively and adaptively arranged with the second steam outlet and the third steam outlet; the first cooling water outlet is respectively and adaptively arranged with the second cooling water outlet and the third cooling water outlet; the first hydrogen inlet is respectively and adaptively arranged with the second hydrogen inlet and the third hydrogen inlet; The first hydrogen inlet is respectively and adaptively arranged with the second hydrogen inlet and the third hydrogen inlet; the first cooling water inlet is respectively and adaptively arranged with the second cooling water inlet and the third cooling water inlet; the first air outlet is respectively and adaptively arranged with the second air outlet and the third air outlet.

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