CN219180556U

CN219180556U - Fuel cell

Info

Publication number: CN219180556U
Application number: CN202223498952.XU
Authority: CN
Inventors: 安兆阳; 丁玉川; 赵小军; 王彦波; 梁文胜; 于沛文
Original assignee: Shandong Guochuang Fuel Cell Technology Innovation Center Co ltd
Current assignee: Shandong Guochuang Fuel Cell Technology Innovation Center Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-13
Anticipated expiration: 2032-12-27

Abstract

The utility model belongs to the technical field of fuel cells, and discloses a fuel cell which comprises a box body, a galvanic pile, a bracket and an arc-shaped guide plate. The box includes bottom plate, curb plate and roof, is provided with the drainage groove on the bottom plate, is provided with the leakage fluid dram that communicates the inside and outside of box in the drainage groove. The electric pile is arranged in the box body. The support includes arch supporting part and connecting portion, and the both ends of arch supporting part all are provided with connecting portion, and the top and the roof of connecting portion link firmly, and the bottom links firmly with arch supporting part, and a plurality of supports set up along the length direction interval of box. The arc guide plate frame is arranged on the arc supporting part, the opening of the arc guide plate faces to the bottom plate, and the arc guide plate is used for shielding the galvanic pile. According to the fuel cell disclosed by the utility model, when condensed water generated by water vapor in the tank body on the top plate drops under the action of gravity, the condensed water can be blocked by the arc-shaped guide plates, and the arc-shaped structures of the arc-shaped guide plates can guide the condensed water to two sides, so that the problem of short circuit caused by direct dropping of the condensed water on the surface of a galvanic pile is avoided.

Description

Fuel cell

Technical Field

The present utility model relates to the field of fuel cell technologies, and in particular, to a fuel cell.

Background

After the stack of the fuel cell is stopped, condensed water can be generated in the tank body in a low-temperature environment, and the condensed water at the upper cover of the tank body can drop to the surface of the stack, so that the problem of short circuit is caused. The existing fuel cell is generally provided with a moisture absorption structure in the box body for absorbing the internal moisture and the moisture of the cell box, however, the service life of the moisture absorption material of the moisture absorption structure is limited, or the moisture absorption effect is reduced after a period of use, if the moisture absorption material of the moisture absorption structure cannot be replaced in time, the condensed water at the upper cover of the box body still can drop to the surface of the galvanic pile.

Therefore, a fuel cell is needed to solve the above-described problems.

Disclosure of Invention

The utility model aims to provide a fuel cell which can avoid the problem of short circuit caused by direct dripping of condensed water on the surface of a galvanic pile.

To achieve the purpose, the utility model adopts the following technical scheme:

a fuel cell comprising:

the box body comprises a bottom plate, side plates and a top plate, wherein the bottom plate is provided with a drainage groove, and a liquid outlet communicated with the inside and the outside of the box body is arranged in the drainage groove;

a galvanic pile arranged in the case;

the brackets comprise an arch supporting part and connecting parts, wherein the connecting parts are arranged at two ends of the arch supporting part, the top ends of the connecting parts are fixedly connected with the top plate, the bottom ends of the connecting parts are fixedly connected with the arch supporting part, and a plurality of brackets are arranged at intervals along the length direction of the box body;

the arc-shaped guide plate is erected on the arc-shaped supporting part, an opening of the arc-shaped guide plate faces the bottom plate, and the arc-shaped guide plate is used for shielding the galvanic pile.

Preferably, a joint of the arched supporting portion and the connecting portion forms a crack, and the arched deflector is clamped in the crack.

Preferably, the arch-shaped supporting part is provided with a supporting cambered surface, and the bottom surface of the arc-shaped guide plate is attached to the supporting cambered surface.

Preferably, the bottom surface of the arch support is provided with a reinforcing rib extending in the longitudinal direction of the arch support.

Preferably, the drainage groove comprises a first drainage groove extending along the length direction of the pile and a second drainage groove extending along the width direction of the pile, the first drainage groove is arranged on two sides of the length direction of the bottom plate, and the second drainage groove is arranged at one end of the length direction of the bottom plate.

Preferably, the liquid draining ports are arranged at two ends of the second drainage groove.

Preferably, the projection of the edges of the arc-shaped guide plates along the two sides of the length direction of the box body in the vertical direction is located in the first drainage groove.

Preferably, one side of the drainage groove is provided with a first slope extending along the length direction of the box body, the top end of the first slope is connected with the top surface of the bottom plate, the bottom end of the first slope extends to the bottom surface of the drainage groove, the other side of the drainage groove is provided with a second slope extending along the length direction of the box body and a vertical surface, the top end of the second slope is connected with the top surface of the bottom plate, the bottom end of the second slope is connected with the top end of the vertical surface, and the bottom end of the vertical surface extends to the bottom surface of the drainage groove.

Preferably, the device further comprises a connecting piece, an ear plate is arranged at the top end of the connecting portion, a connecting hole is formed in the ear plate, and the connecting piece penetrates through the connecting hole to connect the ear plate and the top plate.

Preferably, the electric pile box further comprises an electric pile support, wherein the electric pile support is fixed on the bottom plate of the box body and fixedly connected with the electric pile.

The utility model has the beneficial effects that:

according to the fuel cell disclosed by the utility model, the bracket is fixed on the top plate of the tank body, the arc-shaped guide plates are erected on the arch-shaped supporting parts of the bracket, the electric pile is shielded by the arc-shaped guide plates, and the openings of the arc-shaped guide plates face the bottom plate of the tank body, so that when the fuel cell is stopped and the external environment temperature is low, condensed water generated by water vapor in the tank body on the top plate drops under the action of gravity and can be shielded by the arc-shaped guide plates, the condensed water can be drained to two sides through the arc-shaped structure of the arc-shaped guide plates, and the condensed water can flow to the liquid outlet along the drainage grooves on the bottom plate after dropping from the two sides of the arc-shaped guide plates, so that the problem of short circuit caused by direct dropping of the condensed water on the surface of the electric pile is avoided.

Drawings

Fig. 1 is a schematic view of a fuel cell according to an embodiment of the present utility model;

fig. 2 is a schematic view of a part of the structure of a fuel cell provided in an embodiment of the present utility model;

fig. 3 is a schematic structural view of a support of a fuel cell according to an embodiment of the present utility model;

fig. 4 is a partial cross-sectional view of a fuel cell provided by an embodiment of the present utility model.

In the figure:

1. a case; 11. a bottom plate; 12. a side plate; 13. a top plate;

2. a galvanic pile;

3. a bracket; 31. an arch-shaped supporting part; 32. a connection part; 321. ear plates; 3211. a connection hole; 33. a crack; 34. a supporting cambered surface; 35. reinforcing ribs;

4. an arc-shaped guide plate;

5. a galvanic pile support;

10. drainage grooves; 101. a first ramp; 102. a second ramp; 103. elevation; 104. a first drainage groove; 105. a second drainage groove; 20. and a liquid outlet.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 to 4, the present embodiment provides a fuel cell including a case 1, a stack 2, a bracket 3, and an arc-shaped baffle 4. The box 1 comprises a bottom plate 11, side plates 12 and a top plate 13, wherein a drainage groove 10 is arranged on the bottom plate 11, and a liquid outlet 20 which is communicated with the inside and the outside of the box 1 is arranged in the drainage groove 10. The electric pile 2 is arranged in the box body 1. The support 3 includes arch supporting part 31 and connecting portion 32, and the both ends of arch supporting part 31 all are provided with connecting portion 32, and the top and the roof 13 of connecting portion 32 link firmly, and the bottom links firmly with arch supporting part 31, and a plurality of supports 3 set up along the length direction interval of box 1. The arc-shaped guide plate 4 is erected on the arc-shaped supporting part 31, the opening of the arc-shaped guide plate 4 faces the bottom plate 11, and the arc-shaped guide plate 4 is used for shielding the galvanic pile 2.

According to the fuel cell provided by the embodiment, the bracket 3 is fixed on the top plate 13 of the box body 1, the arc-shaped guide plates 4 are erected on the arch-shaped supporting parts 31 of the bracket 3, the arc-shaped guide plates 4 shield the galvanic pile 2, and the openings of the arc-shaped guide plates 4 face the bottom plate 11 of the box body 1, so that when the external environment temperature is low, after the fuel cell is stopped, condensed water generated by water vapor in the box body 1 on the top plate 13 drops under the action of gravity and can be shielded by the arc-shaped guide plates 4, the arc-shaped structures of the arc-shaped guide plates 4 can drain the condensed water to two sides, and the condensed water can flow to the liquid drain 20 along the drainage grooves 10 on the bottom plate 11 after dropping from the two sides of the arc-shaped guide plates 4, so that the condensed water is prevented from directly dropping on the surface of the galvanic pile 2 to cause a short circuit problem.

Specifically, in the present embodiment, three brackets 3 are provided, and the arc-shaped baffle 4 is erected on the three brackets 3.

Optionally, a seam 33 is formed at the connection between the arched supporting portion 31 and the connecting portion 32, and the arched deflector 4 is clamped in the seam 33, so that the arched deflector 4 is fixed by the clamping action of the arched supporting portion 31 and the connecting portion 32.

Optionally, a supporting cambered surface 34 is arranged on the arched supporting portion 31, and the bottom surface of the arc-shaped guide plate 4 is attached to the supporting cambered surface 34. Specifically, in this embodiment, the arc-shaped baffle 4 is an insulating sheet with a certain thickness and mechanical strength, and is in a sheet shape, and both ends of the arc-shaped baffle 4 are clamped in the crack 33, so that the arc-shaped baffle 4 is attached to the supporting cambered surface 34 to maintain an arc shape, and the flow guiding effect on the condensed water is ensured. The arc-shaped deflector 4 needs good stability and environmental adaptability, has low embrittlement temperature and flame-retardant self-extinguishing capability, and in the embodiment, the arc-shaped deflector 4 is made of polycarbonate PC material.

Optionally, a reinforcing rib 35 extending along the length direction of the arch support 31 is provided on the bottom surface of the arch support 31, so as to improve the structural strength of the arch support 31 and ensure the structural stability of the arch support 31.

Optionally, the drainage groove 10 includes a first drainage groove 104 extending along the length direction of the pile 2 and a second drainage groove 105 extending along the width direction of the pile 2, the first drainage groove 104 is disposed on two sides of the length direction of the bottom plate 11, and the second drainage groove 105 is disposed at one end of the length direction of the bottom plate 11, so that condensed water dropped on two sides of the arc-shaped guide plate 4 can be drained by the drainage groove 10 in time.

Optionally, both ends of the second drainage groove 105 are provided with liquid drain ports 20, so that condensed water in the drainage groove 10 is drained in time.

Optionally, the projections of the edges of the two sides of the arc-shaped guide plates 4 along the length direction of the box body 1 in the vertical direction are all located in the first drainage groove 104, so that the condensed water dropped on the two sides of the arc-shaped guide plates 4 directly enters the first drainage groove 104, and the condensed water is prevented from dropping on the upper surface of the bottom plate 11 and splashing on the electric pile 2.

Optionally, one side of the drainage groove 10 is provided with a first slope 101 extending along the length direction of the box body 1, the top end of the first slope 101 is connected with the top surface of the bottom plate 11, the bottom end of the first slope 101 extends onto the bottom surface of the drainage groove 10, the other side of the drainage groove 10 is provided with a second slope 102 and a vertical surface 103 extending along the length direction of the box body 1, the top end of the second slope 102 is connected with the top surface of the bottom plate 11, the bottom end of the vertical surface 103 is connected with the top end of the vertical surface 103, the bottom end of the vertical surface 103 extends onto the bottom surface of the drainage groove 10, the arrangement of the first slope 101 and the second slope 102 facilitates the condensate water on the side plate 12 to flow together into the drainage groove 10, and the sectional area of the drainage groove 10 is increased by arranging the vertical surface 103, so that the storage drainage capacity of the drainage groove 10 is improved.

Optionally, the fuel cell provided in this embodiment further includes a connecting member, an ear plate 321 is disposed at a top end of the connecting portion 32, a connecting hole 3211 is disposed on the ear plate 321, and the connecting member passes through the connecting hole 3211 to connect the ear plate 321 and the top plate 13, so as to fix the bracket 3 on the top plate 13. In this embodiment, the connecting member is a screw.

Optionally, the fuel cell provided in this embodiment further includes a stack bracket 5, where the stack bracket 5 is fixed on the bottom plate 11 of the case 1 and is fixedly connected to the stack 2. In the present embodiment, two stack holders 5 are provided at both ends of the stack 2, thereby stably fixing the stack 2 to the bottom plate 11.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A fuel cell, characterized by comprising:

the box body (1) comprises a bottom plate (11), side plates (12) and a top plate (13), wherein the bottom plate (11) is provided with a drainage groove (10), and a liquid outlet (20) communicated with the inside and the outside of the box body (1) is arranged in the drainage groove (10);

a galvanic pile (2) arranged in the case (1);

the bracket (3) comprises an arch support part (31) and a connecting part (32), wherein the connecting parts (32) are arranged at two ends of the arch support part (31), the top end of the connecting part (32) is fixedly connected with the top plate (13), the bottom end of the connecting part is fixedly connected with the arch support part (31), and a plurality of brackets (3) are arranged at intervals along the length direction of the box body (1);

the arc-shaped guide plate (4) is arranged on the arc-shaped supporting part (31), an opening of the arc-shaped guide plate (4) faces the bottom plate (11), and the arc-shaped guide plate (4) is used for shielding the galvanic pile (2).

2. The fuel cell according to claim 1, wherein a joint of the arched support portion (31) and the connecting portion (32) forms a nip (33), and the arched deflector (4) is clamped to the nip (33).

3. The fuel cell according to claim 2, wherein a support arc surface (34) is provided on the arch-shaped support portion (31), and a bottom surface of the arc-shaped baffle plate (4) is attached to the support arc surface (34).

4. The fuel cell according to claim 1, wherein the arch support (31) is provided with a reinforcing rib (35) on a bottom surface thereof extending in a longitudinal direction of the arch support (31).

5. The fuel cell according to claim 1, wherein the drainage groove (10) includes a first drainage groove (104) extending in a longitudinal direction of the stack (2) and a second drainage groove (105) extending in a width direction of the stack (2), the first drainage groove (104) is provided on both sides of the longitudinal direction of the bottom plate (11), and the second drainage groove (105) is provided at one end of the longitudinal direction of the bottom plate (11).

6. The fuel cell according to claim 5, wherein both ends of the second drainage groove (105) are provided with the liquid drain port (20).

7. The fuel cell according to claim 6, wherein the projections of the edges of the arc-shaped guide plates (4) along both sides of the length direction of the case (1) in the vertical direction are all located in the first drainage groove (104).

8. The fuel cell according to any one of claims 1 to 7, wherein one side of the drainage groove (10) is provided with a first slope (101) extending along the length direction of the case (1), the top end of the first slope (101) is connected with the top surface of the bottom plate (11), the bottom end extends onto the bottom surface of the drainage groove (10), the other side of the drainage groove (10) is provided with a second slope (102) and a vertical surface (103) extending along the length direction of the case (1), the top end of the second slope (102) is connected with the top surface of the bottom plate (11), the bottom end is connected with the top end of the vertical surface (103), and the bottom end of the vertical surface (103) extends onto the bottom surface of the drainage groove (10).

9. The fuel cell according to claim 1, further comprising a connecting member, wherein an ear plate (321) is provided at a top end of the connecting portion (32), a connecting hole (3211) is provided in the ear plate (321), and the connecting member passes through the connecting hole (3211) to connect the ear plate (321) with the top plate (13).

10. The fuel cell according to claim 1, further comprising a cell stack bracket (5), wherein the cell stack bracket (5) is fixed to a bottom plate (11) of the case (1) and is fixedly connected to the cell stack (2).