CN213459818U

CN213459818U - Air-cooled fuel cell device

Info

Publication number: CN213459818U
Application number: CN202022495553.2U
Authority: CN
Inventors: 陆维; 魏刚; 耿珺; 梅武; 胡浩然; 刘希
Original assignee: Spic Hydrogen Energy Technology Development Co Ltd
Current assignee: Jinan Lvdong Hydrogen Energy Technology Co ltd; Spic Hydrogen Energy Technology Development Co Ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-06-15
Anticipated expiration: 2030-11-02

Abstract

The utility model relates to an air-cooled fuel cell device, air-cooled fuel cell device includes the casing, the cover body and fuel cell pile, the casing includes first curb plate of bottom plate first end plate second end plate and second curb plate, first end plate and second end plate are established on the bottom plate along the length direction interval of casing, air inlet and gas outlet have been seted up on the first end plate, first curb plate and second curb plate are established on the bottom plate along the length direction interval of casing, first end plate, the second end plate, first curb plate, be equipped with the through-hole on at least one of second curb plate and bottom plate, wherein the bottom plate, first end plate, the second end plate, inject between first curb plate and the second curb plate and hold the chamber, the upper end that holds the chamber is opened, the cover body covers and holds the chamber opening. The utility model discloses air-cooled fuel cell device has advantages such as light in weight, low in production cost, operating property stability, long service life.

Description

Air-cooled fuel cell device

Technical Field

The utility model relates to a fuel cell field, concretely relates to air-cooled fuel cell device.

Background

Fuel cells are generally classified into water-cooling type fuel cells and air-cooling type (also referred to as air-cooling type) fuel cells according to the cooling method. The air-cooled (or air-cooled) fuel cell stack is cooled by adopting air, the cooling device is generally a cooling fan, the fan sends air into the fuel cell stack and plays a role of conveying coolant and cathode gas, the air-cooled fuel cell is divided into a closed type and an open type, the general closed air-cooled fuel cell comprises a plurality of single cells stacked together, current collecting plates and insulating plates arranged at two sides of a plurality of single cell stacking structures, a fuel cell packaging shell and the like, and the split current collecting plates and insulating plates are arranged, so that parts are added, and the reduction of weight is not facilitated.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a lightweight air-cooled fuel cell device.

According to the utility model discloses air-cooled type fuel cell device, include: a housing, the housing comprising:

a base plate; the first end plate and the second end plate are arranged on the bottom plate at intervals along the length direction of the shell, and the first end plate is provided with an air inlet and an air outlet; the first side plate and the second side plate are arranged on the bottom plate at intervals along the width direction of the shell, at least one of the first end plate, the second end plate, the first side plate, the second side plate and the bottom plate is provided with a through hole, an accommodating cavity is defined among the bottom plate, the first end plate, the second end plate, the first side plate and the second side plate, and the upper end of the accommodating cavity is open; a cover mounted on the housing, the cover covering the opening of the receiving cavity; and the fuel cell stack is arranged in the accommodating cavity and clamped between the first end plate and the second end plate.

According to the utility model discloses air-cooled fuel cell device is through being equipped with the through-hole on at least one in first curb plate second end plate 13, first curb plate second curb plate and the bottom plate to can alleviate the holistic weight of casing, under the condition that does not influence the bulk strength of casing, reduction in production cost, resources are saved.

In the actual use process, be equipped with the first end plate setting of air inlet and gas outlet towards ground. According to the utility model discloses in the air-cooled type fuel cell device working process, the fuel cell pile can produce unnecessary moisture, and then can exert an influence to the pneumatic performance and the life-span of fuel cell pile not in time with unnecessary moisture discharge fuel cell pile. Through setting up first end plate towards ground, unnecessary moisture in the fuel cell stack can be discharged from air inlet and the gas outlet on the first end plate through the dead weight, and then has guaranteed the runnability of fuel cell stack.

Therefore, the air-cooled fuel cell device 100 according to the embodiment of the present invention has the advantages of light weight, low production cost, stable operation performance, long service life, etc.

In some embodiments, the through-hole is provided on each of the first end plate, the second end plate, the first side plate, the second side plate, and the bottom plate.

In some embodiments, an intake bypass is opened on the first end plate, the intake bypass is communicated with the intake port, and the air-cooled fuel cell device further includes: the pressure sensor is arranged on the signal integration board, the signal integration board is arranged in the cover body, and a through hole is formed in the part of the cover body opposite to the signal integration board; and the first end part of the connecting pipe is communicated with the air inlet bypass, the second end part of the connecting pipe is connected with the pressure sensor, and the first end part of the connecting pipe is positioned in the air inlet bypass.

In some embodiments, further comprising a fan mounted on the enclosure, the fan being opposed to the fuel cell stack in a height direction of the housing.

In some embodiments, the first end plate has a first surface and a second surface opposite to each other in the height direction of the case, the first surface is provided with a first convex portion, the second surface is provided with a second convex portion, the second end plate has a third surface and a fourth surface opposite to each other in the height direction of the case, the third surface is provided with a third convex portion, the fourth surface is provided with a fourth convex portion, the cover has a first concave portion and a second concave portion, at least a part of the first convex portion is received in the first concave portion, at least a part of the third convex portion is received in the second concave portion, the bottom plate has a third concave portion and a fourth concave portion, at least a part of the second convex portion is received in the third concave portion, and at least a part of the fourth convex portion is received in the fourth concave portion.

In some embodiments, the first protruding portion is a plurality of protruding portions, the third protruding portion is a plurality of protruding portions, the first protruding portions are arranged at intervals in the width direction of the housing, the third protruding portions are arranged at intervals in the width direction of the housing, the first protruding portions and the third protruding portions are arranged at one-to-one correspondence in the length direction of the housing, the second protruding portion is a plurality of protruding portions, the fourth protruding portions are arranged at intervals in the width direction of the housing, and the second protruding portions and the fourth protruding portions are arranged at one-to-one correspondence in the length direction of the housing. The cover body is provided with a plurality of first concave parts and a plurality of second concave parts, the plurality of first concave parts are in one-to-one correspondence with the plurality of first convex parts, the plurality of second concave parts are in one-to-one correspondence with the plurality of third convex parts, the bottom plate is provided with a plurality of third concave parts and a plurality of fourth concave parts, the plurality of third concave parts are in one-to-one correspondence with the plurality of second convex parts, and the plurality of fourth concave parts are in one-to-one correspondence with the plurality of fourth convex parts.

In some embodiments, a first sub through hole extending along the length direction of the housing is formed in the first protruding portion, a second sub through hole extending along the length direction of the housing is formed in the second protruding portion, a third sub through hole extending along the length direction of the housing is formed in the third protruding portion, and a fourth sub through hole extending along the length direction of the housing is formed in the fourth protruding portion, axes of the first sub through hole in the first protruding portion and the third sub through hole in the third protruding portion which are opposite to each other are collinear, and axes of the second sub through hole in the second protruding portion and the fourth sub through hole in the fourth protruding portion which are opposite to each other are collinear.

In some embodiments, the air-cooling type fuel cell device further includes a plurality of first connectors and a plurality of second connectors, each of the plurality of first connectors passing through the first sub through hole of one of the first convex portions and the third sub through hole of the third convex portion opposite thereto, and each of the plurality of second connectors passing through the second sub through hole of one of the second convex portions and the fourth sub through hole of the fourth convex portion opposite thereto.

In some embodiments, the first end plate and the second end plate have the same length in the height direction of the case, the first side plate and the second side plate have the same length in the height direction of the case, and the length of the first end plate in the height direction of the case is greater than the length of the first side plate in the height direction of the case.

In some embodiments, a thickness of at least one of the first end plate and the second end plate is equal to or greater than a preset value, each of the first end plate and the second end plate has first and second side surfaces opposite in a width direction of the case, the first and second side surfaces of the at least one of the first end plate and the second end plate each have an elongated hole extending in a length direction of the case or the cover and the bottom plate have an elongated hole extending in a length direction of the case, the cover is mounted on the at least one of the first end plate and the second end plate by a fastener passing through the elongated hole on the cover, and the bottom plate is mounted on the at least one of the first end plate and the second end plate by a fastener passing through the elongated hole on the bottom plate.

Drawings

Fig. 1 is a schematic structural view of an air-cooling type fuel cell device according to an embodiment of the present invention.

Fig. 2 is a schematic view of a first end plate structure of an air-cooled fuel cell device according to an embodiment of the present invention.

Fig. 3 is a schematic view of a split structure of the first end plate a-a in fig. 2.

Fig. 4 is a schematic structural view of a fuel cell stack of an air-cooled fuel cell device according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a cell structure of an air-cooled fuel cell device according to an embodiment of the present invention.

Reference numerals:

100. an air-cooled fuel cell device;

1. a housing;

11. a base plate; 111. a third recess;

12. a first end plate; 121. an air inlet; 122. an air outlet; 123. an intake bypass; 124. a first convex portion; 1241. a first sub-via; 125. a second convex portion; 1251. a second sub-via;

13. a second end plate; 131. a third convex portion; 1311. a third sub-via; 132. a fourth convex portion; 1321. a fourth sub-via;

14. a first side plate; 15. a through hole;

2. a cover body; 21. a first recess; 22. perforating;

3. a fuel cell stack; 31. a collector plate; 32. a battery; 321. an anode plate; 322. an anode gas flow field plate; 323. a membrane electrode; 324. a cathode plate; 325. a first seal ring; 33. an air intake passage; 34. and an air outlet channel.

4. A fan; 5. a connecting pipe; 6. a first connecting member; 7. a second connecting member; 8. and a signal integration board.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 5, an air-cooled fuel cell apparatus 100 according to an embodiment of the present invention includes a case 1, a casing 2, and a fuel cell stack 3, and the case 1 includes a bottom plate 11, a first end plate 12, a second end plate 13, a first side plate 14, and a second side plate (not shown).

The first end plate 12 and the second end plate 13 are spaced apart from each other along the length direction of the housing 1 and provided on the bottom plate 11, and the first end plate 12 is provided with an air inlet 121 and an air outlet 122. The first side plate 14 and the second side plate are provided on the bottom plate 11 at intervals in the width direction of the case 1, and at least one of the first end plate 12, the second end plate 13, the first side plate 14, the second side plate, and the bottom plate 11 is provided with a through hole 15. Wherein, a containing cavity is defined among the bottom plate 11, the first end plate 12, the second end plate 13, the first side plate 14 and the second side plate, and the upper end of the containing cavity is open. A cover 2 is mounted on the housing 1, the cover 2 covering the opening of the receiving cavity. The fuel cell stack 3 is disposed in the housing cavity, and the fuel cell stack 3 is sandwiched between the first end plate 12 and the second end plate 13. As shown in fig. 1 and 4, a first end plate 12 and a second end plate 13 are provided at the front and rear ends of the bottom plate 11 at a spacing in the front-rear direction. The first side plate 14 and the second side plate are provided at left and right ends of the bottom plate 11 at a spacing in the left-right direction. The bottom plate 11, the first end plate 12, the second end plate 13, the first side plate 14 and the second side plate cooperate to form an accommodating cavity with an open upper end. The enclosure body 1 is mounted above the housing and covers the opening of the receiving cavity, and the fuel cell stack 3 is sandwiched between the first end plate 12 and the second end plate 13.

According to the utility model discloses air-cooled fuel cell device 100 is through being equipped with through-hole 15 on at least one in first end plate 12, second end plate 13, first curb plate 14, second curb plate and bottom plate 11 to can alleviate the holistic weight of casing 1, under the condition that does not influence casing 1's bulk strength, reduction in production cost, resources are saved.

In actual use, the first end plate 12 provided with the air inlet 121 and the air outlet 122 is disposed toward the ground. According to the utility model discloses in the air-cooled fuel cell device 100 working process, fuel cell stack 3 can produce unnecessary moisture, and the pneumatic performance and the life-span that then can exert an influence to fuel cell stack 3 are not in time piled 3 with unnecessary moisture discharge fuel cell. By arranging the first end plate 12 toward the ground, the excessive moisture in the fuel cell stack 3 can be discharged from the air inlet 121 and the air outlet 122 on the first end plate 12 by its own weight, thereby ensuring the operability of the fuel cell stack 3.

In some embodiments, a through hole 15 is provided on each of the first end plate 12, the second end plate 13, the first side plate 14, the second side plate, and the bottom plate 11.

According to the utility model discloses air-cooled fuel cell device 100 is equipped with through-hole 15 on each in first end plate 12, second end plate 13, first curb plate 14, second curb plate and bottom plate 11 to can further reduce casing 1's weight under the condition that does not influence casing 1's bulk strength (for example the through-hole is triangle-shaped hollow out construction). Moreover, the through holes 15 are provided in each of the first end plate 12, the second end plate 13, the first side plate 14, the second side plate, and the bottom plate 11, which can further promote the flow of air, can more effectively dissipate heat from the fuel cell stack 3, and improve the operation performance of the fuel cell stack 3.

As shown in fig. 2 and 3, the first end plate 12 is provided with an intake bypass 123, and the intake bypass 123 communicates with the intake port 121.

The air-cooled fuel cell apparatus 100 further includes a signal integration board 8 and a connection pipe 5, a pressure sensor (not shown) is provided on the signal integration board 8, the signal integration board 8 is provided in the cover body 2, and a through hole 22 is provided on a portion of the cover body 2 opposite to the signal integration board 8. A first end of the connection pipe 5 communicates with the intake bypass 123, and a second end of the connection pipe 5 is connected to the pressure sensor.

According to the utility model discloses air-cooled fuel cell device 100 is through offering the air inlet bypass 123 that is linked together with air inlet 121 on first end plate 12, can make partial fuel gas get into in air inlet bypass 123 from air inlet 121, this partial fuel gas in the rethread connecting pipe will air inlet bypass 123 draws forth pressure sensor from air inlet bypass 123 on, and then can utilize this pressure sensor to detect this partial fuel gas's pressure, and then adjust the pressure in fuel cell stack 3 to predetermineeing the pressure threshold value within range according to the numerical value of pressure, make fuel cell 3 keep stable operating condition (operating efficiency).

In some embodiments, the signal integration board 8 further includes a temperature sensor for detecting the temperature of the fuel cell stack 3.

In some embodiments, the air-cooling type fuel cell apparatus 100 further includes a fan 4, the fan 4 being mounted on the enclosure body 2, the fan 4 being opposed to the fuel cell stack 3 in the height direction of the casing 1. As shown in fig. 1, the fan 4 is located above the fuel cell stack 3.

According to the air-cooling type fuel cell apparatus 100 of the embodiment of the present invention, the fan 4 is fitted with the through-hole 15 provided on each of the first end plate 12, the second end plate 13, the first side plate 14, the second side plate, and the bottom plate 11, so that the flow rate of air passing through the fuel cell stack 3 can be controlled, in the actual operation process, when the fuel cell stack 3 just runs, the fan sends a small amount of air flow into the fuel cell stack 3, and as the running efficiency of the fuel cell stack 3 (the running power of the fuel cell stack 3) is improved, the flow rate of the gas (oxygen content) in the fuel cell stack 3 is increased by the fan, the operation performance of the fuel cell stack 3 is ensured, and when the fuel cell stack 3 is stably operated (the fuel cell stack 3 reaches a rated output state), the fan rotation speed is adjusted according to the operating state of the fuel cell 32, and the air flow rate is controlled so that the fuel cell stack 3 maintains stable operating efficiency.

As shown in fig. 1, 2 and 4, the first end plate 12 has a first surface and a second surface opposite to each other in the height direction of the housing 1, the first surface is provided with a first protrusion 124, the second surface is provided with a second protrusion 125, the second end plate 13 has a third surface and a fourth surface opposite to each other in the height direction of the housing 1, the third surface is provided with a third protrusion 131, the fourth surface is provided with a fourth protrusion 132, the cover 2 has a first recess 21 and a second recess (not shown), at least a part of the first protrusion 124 is received in the first recess 21, at least a part of the third protrusion 131 is received in the second recess, the bottom plate 11 has a third recess 111 and a fourth recess (not shown), at least a part of the second protrusion 125 is received in the third recess 111, and at least a part of the fourth protrusion 132 is received in the fourth recess.

According to the air-cooled fuel cell device 100 of the embodiment of the present invention, the first concave portion 21 is fitted to the first convex portion 124, and the second concave portion and the third convex portion 131 are fitted to each other, so that the connection strength between the cover 2 and the housing 1 in the left-right direction can be enhanced. Specifically, when the first concave portion 21 is fitted with the first convex portion 124, the first convex portion 124 restricts the movement of the first concave portion 21 and the cover 2 in the left-right direction, and when the second concave portion is fitted with the third convex portion 131, the third convex portion 131 restricts the movement of the second concave portion and the cover 2 in the left-right direction, thereby preventing the cover 2 from being separated from the housing 1 due to the vibration generated when the air-cooling type fuel cell apparatus 100 of the embodiment of the present invention is operated.

The third concave portion 111 can enhance the connection strength between the bottom plate 11 and the first end plate 12 in the left-right direction by engaging with the second convex portion 125, and the fourth concave portion can enhance the connection strength between the bottom plate 11 and the second end plate 13 in the left-right direction by engaging with the fourth convex portion 132. Specifically, when the third concave portion 111 is fitted with the second convex portion 125, the second convex portion 125 restricts the movement of the third concave portion 111 and the bottom plate 11 in the left-right direction, and when the fourth concave portion is fitted with the fourth convex portion 132, the fourth convex portion 132 restricts the movement of the fourth concave portion and the bottom plate 11 in the left-right direction, thereby preventing the bottom plate 11 from being separated from the first end plate 12 and the second end plate 13 due to the vibration generated when the air-cooled fuel cell apparatus 100 according to the embodiment of the present invention is operated.

In some embodiments, the first protrusion 124 is plural, the third protrusion 131 is plural, the plural first protrusions 124 are arranged at intervals in the width direction of the housing 1, the plural third protrusions 131 are arranged at intervals in the width direction of the housing 1, and the plural first protrusions 124 and the plural third protrusions 131 are opposite to each other in the length direction of the housing 1.

The second protrusions 125 are plural, the fourth protrusions 132 are plural, the plural second protrusions 125 are arranged at intervals in the width direction of the housing 1, the plural fourth protrusions 132 are arranged at intervals in the width direction of the housing 1, and the plural second protrusions 125 and the plural fourth protrusions 132 are opposed to each other one by one in the length direction of the housing 1.

The cover body 2 is provided with a plurality of first concave portions 21 and a plurality of second concave portions 21, the plurality of first concave portions 21 correspond to the plurality of first convex portions 124 one to one, the plurality of second concave portions correspond to the plurality of third convex portions 131 one to one, the bottom plate 11 is provided with a plurality of third concave portions 111 and a plurality of fourth concave portions 111, the plurality of third concave portions 111 correspond to the plurality of second convex portions 125 one to one, and the plurality of fourth concave portions correspond to the plurality of fourth convex portions 132 one to one. As shown in fig. 1, 2, and 4, the first end plate 12 has a plurality of first protrusions 124 on its upper surface (first surface), the first end plate 12 has a plurality of second protrusions 125 on its lower surface (second surface), the second end plate 13 has a plurality of third protrusions 131 on its upper surface (third surface), the second end plate 13 has a plurality of fourth protrusions 132 on its lower surface (fourth surface), the plurality of first protrusions 124 and the plurality of third protrusions 131 are opposed to each other in the front-rear direction, and the plurality of second protrusions 125 and the plurality of fourth protrusions 132 are opposed to each other in the front-rear direction.

According to the air-cooled fuel cell device 100 of the embodiment of the present invention, the plurality of first protrusions 124 and the plurality of first recesses 21, the plurality of third protrusions 131, and the plurality of second recesses corresponding one-to-one to the plurality of third protrusions 131 are provided, the connection strength between the cover body 2 and the housing 1 can be further enhanced, the plurality of second protrusions 125 and the plurality of third recesses 111, the plurality of fourth protrusions 132, and the plurality of fourth recesses corresponding one-to-one to the plurality of fourth protrusions 132 are provided, the connection strength between the bottom plate 11 and the housing 1 can be further enhanced.

In some embodiments, the first protrusion 124 is provided with a first sub through hole 1241 extending along the length direction of the housing 1, the second protrusion 125 is provided with a second sub through hole 1251 extending along the length direction of the housing 1, the third protrusion 131 is provided with a third sub through hole 1311 extending along the length direction of the housing 1, and the fourth protrusion 132 is provided with a fourth sub through hole 1321 extending along the length direction of the housing 1, the axes of the first sub through hole 1241 on the first protrusion 124 and the third sub through hole 1311 on the third protrusion 131 are collinear, and the axes of the second sub through hole 1251 on the second protrusion 125 and the fourth sub through hole 1321 on the fourth protrusion 132 are collinear.

According to the air-cooled fuel cell device 100 of the embodiment of the present invention, the weight of the housing can be further reduced on the premise of restricting the movement of the cover 2 and the bottom plate 11 in the left-right direction by providing the first sub-through hole 1241 on the first convex portion 124, the second sub-through hole 1251 on the second convex portion 125, the third sub-through hole 1311 on the third convex portion 131, and the fourth sub-through hole 1321 on the fourth convex portion 132.

As shown in fig. 1 and 4, in some embodiments, the air-cooling type fuel cell device 100 further includes a plurality of first connectors 6 and a plurality of second connectors 7, each of the plurality of first connectors 6 passes through the first sub through-hole 1241 of one first protrusion 124 and the third sub through-hole 1311 of the third protrusion 131 opposite thereto, and each of the plurality of second connectors 7 passes through the second sub through-hole 1251 of one second protrusion 125 and the fourth sub through-hole 1321 of the fourth protrusion 132 opposite thereto.

According to the air-cooled fuel cell device 100 of the embodiment of the present invention, each of the plurality of first connectors 6 passes through the first sub-through hole 1241 of the first convex portion 124 and the third sub-through hole 1311 of the third convex portion 131 opposite thereto, and each of the plurality of second connectors 7 passes through the second sub-through hole 1251 of the second convex portion 125 and the fourth sub-through hole 1321 of the fourth convex portion 132 opposite thereto, so that the first end plate 12 and the second end plate 13 can be connected to each other through the plurality of first connectors 6 and the plurality of second connectors 7, and the connection strength between the first end plate 12 and the second end plate 13 can be further enhanced, and the fuel cell stack 3 is always held between the first end plate 12 and the second end plate 13, thereby ensuring the operation performance of the fuel cell 32.

As shown in fig. 1, the lengths of the first end plate 12 and the second end plate 13 in the height direction of the casing 1 are the same, the lengths of the first side plate 14 and the second side plate in the height direction of the casing 1 are the same, and the length of the first end plate 12 in the height direction of the casing 1 is greater than the length of the first side plate 14 in the height direction of the casing 1.

According to the utility model discloses air-cooled fuel cell device 100, in actual installation, the height that highly is less than first curb plate 12 and second curb plate of first curb plate 14 and second curb plate, when the cover body 2 is assembled with casing 1, the left end face and the right end face of first curb plate 12 and second curb plate 13 can further restrict the removal of cover body 2 in left and right sides orientation, have strengthened the joint strength between cover body 2 and casing 1.

As shown in fig. 1 and 4, the thickness of at least one of the first and second end plates, each of which has first and second side surfaces opposite in the width direction of the case, each of the first and second side surfaces of at least one of the first and second end plates has a long hole extending in the length direction of the case 1 or the cover body 2 and the bottom plate 11 have a long hole extending in the length direction of the case, the cover body 2 is mounted on at least one of the first and

second end plates

12 and 13 by a fastener passing through the long hole on the cover body 2, and the bottom plate 11 is mounted on at least one of the first and

second end plates

12 and 13 by a fastener passing through the long hole on the bottom plate 11.

In the actual assembling process, the size of the cells 32 after press-fitting is smaller than the expected size of the cells 32 due to the pressing force, and therefore when the fuel cell stack 3 is composed of a plurality of the cells 32, the actual size of the fuel cell stack 3 is smaller than the expected size of the fuel cell stack 3, and therefore, by providing long holes extending in the front-rear direction in each of the left side surface of the first end plate 12 (the first side surface of the first end portion 12) and the right side surface of the first end plate 12 (the second side surface of the first end portion 12) and long holes extending in the longitudinal direction of the housing 1 in each of the left side surface of the second end plate 13 (the first side surface of the first end portion 13) and the right side surface of the second end plate 13 (the second side surface of the first end portion 13), and by providing the cover body 2 and the bottom plate 11 with fasteners passing through the long holes in the cover body 2 on at least one of the first end, in some embodiments, the left side of the first end plate 12 and the right side of the first end plate 12 are provided with a plurality of long holes, two long holes on the left side of the first end plate 12 are arranged at intervals in the up-down direction, two long holes on the right side of the first end plate 12 are arranged at intervals in the up-down direction, the left side of the second end plate 13 and the right side of the second end plate 13 are provided with a plurality of long holes, two long holes on the left side of the second end plate 13 are arranged at intervals in the up-down direction, two long holes on the right side of the second end plate 13 are arranged at intervals in the up-down direction, the cover 2 is respectively engaged with the long hole above the left side of the first end plate 12 and the long hole above the left side of the second end plate 12, and/or the cover 2 is respectively engaged with the long hole above the right side of the first end plate 12 and the long hole above the right side of the second end plate 12, the base plate 11 is fitted with a long hole below the left side surface of the first end plate 12 and a long hole below the left side surface of the second end plate 12, respectively, and/or the cover 2 is fitted with a long hole below the right side surface of the first end plate 12 and a long hole below the right side surface of the second end plate 12, respectively.

Or long holes extending in the front-rear direction are formed in the cover 2 and the bottom plate 11, the cover 2 is attached to at least one of the first end plate 12 and the second end plate 13 by a fastener passing through the long hole in the cover 2, and the bottom plate 11 is attached to at least one of the first end plate 12 and the second end plate 13 by a fastener passing through the long hole in the bottom plate 11.

During the assembly of the cover 2 and the housing 1, as shown in fig. 1, the front end of the cover 2 can move back and forth on the first end plate 12 and/or the rear end of the cover 2 on the second end plate 13 by a distance that is a preset value of the thickness of the first end plate 12 and the second end plate 13.

During the assembly of the bottom plate 11 and the first and

second end plates

12, 13, as shown in fig. 1, the front end of the bottom plate 11 can move back and forth on the first end plate 12 and/or the rear end of the bottom plate 11 on the second end plate 13 by a distance that is a preset value of the thickness of the first and

second end plates

12, 13.

It will be appreciated that the length of the cover 2 and the base plate 11 in the front-rear direction should be less than or equal to the distance between the front side of the first end plate 12 and the rear side of the second end plate 13.

Therefore, the distance between the first end plate 12 and the second end plate 13 is set according to the actual size of the fuel cell stack 3 in actual use, the cover body 2 is fixed with the first end plate 12 and the second end plate 13 by moving on the first end plate 12 and/or the second end plate 13 and matching the first end plate 12 and the second end plate 13 through fasteners, and the bottom plate 11 is fixed with the first end plate 12 and the second end plate 13 by moving on the first end plate 12 and/or the second end plate 13 and matching the first end plate 12 and the second end plate 13 through fasteners to realize the installation of the fuel cell stacks 3 with different sizes.

It will be understood by those skilled in the art that the connection structure between the cover 2 and the first end plate 12 and the second end plate 13 and the connection structure between the bottom plate 11 and the first end plate 12 and the second end plate 13 are not limited thereto, and the cover 2 and the first end plate 12 and the second end plate 13 and the bottom plate 11 and the first end plate 12 and the second end plate 13 can be fixedly connected by means of a snap connection.

An air-cooling type fuel cell apparatus 100 according to some specific examples of the present invention is described below with reference to the drawings.

As shown in fig. 1 to 5, an air-cooling type fuel cell apparatus 100 according to an embodiment of the present invention includes a case 1, a casing 2, a fuel cell stack 3, a fan, and a connection pipe.

The upper end of the casing 1 has an opening, the fuel cell stack 3 is clamped inside the casing 1, the cover 2 is mounted at the opening at the upper end of the casing 1, the connection pipes are respectively connected with the cover 2 and the casing 1, and the fan is mounted at the upper end of the cover 2 and is opposite to the fuel cell stack 3 inside the casing 1 in the vertical direction as shown in fig. 1.

As shown in fig. 4 and 5, the fuel cell stack 3 includes current collecting plates and a cell 32 group, the cell 32 group is formed by stacking a plurality of cells 32, the cell 32 group is sandwiched between the two current collecting plates, and the air inlet passage and the air outlet 122 passage penetrate through the current collecting plates and the cell 32 group.

The cell 32 comprises an anode plate 321, an anode gas flow passage plate 322, a membrane electrode 323, a cathode plate 324 and a first sealing ring 325, wherein the anode plate 321, the anode gas flow passage plate 322, the membrane electrode 323 and the cathode plate 324 are sequentially overlapped to form the cell 32, the cathode plate 324 of one of the two adjacent cells 32 is connected with the anode plate 321 of the other of the two adjacent cells 32, the air inlet channel 33 and the air outlet channel 34 penetrate through the anode plate 321, the anode gas flow passage plate 322, the membrane electrode 323 and the cathode plate 324, the first sealing ring 324 is respectively arranged at the air inlet channel 33 and the air outlet channel 34 on the surface of the anode plate 321 connected with the cathode plate 324 of the adjacent cell 32, and the first sealing ring 324 is respectively arranged at the air inlet channel 33 and the air outlet channel 34 on the surface connected with the cathode plate 323 and the. Wherein the cross-sections of the inlet channels 33 and the outlet channels 34 are circular.

In some other embodiments, the anode plate 321 is integrally designed with the anode gas channel plate 322.

The current collecting plate 31 is an insulating plate, and one side of the current collecting plate 31 opposite to the battery 32 has a conductive layer, specifically, the current collecting plate 31 is a PCB plate, and one side of the PCB plate opposite to the battery 32 has conductivity by means of plating or the like.

As shown in fig. 1 to 3, the housing 1 includes a bottom plate 11, a first end plate 12, a second end plate 13, a first side plate 14, a second side plate, and a through hole 15.

The first end plate 12 and the second end plate 13 are spaced apart from each other along the front-rear direction of the housing 1 and are disposed on the bottom plate 11, the first end plate 12 is provided with an air inlet 121 and an air outlet 122 penetrating through the first end plate 12 along the front-rear direction, the air inlet 121 is communicated with an air inlet channel 33 of the fuel cell stack 3, a second sealing ring (not shown) is disposed between the air inlet 121 and the air inlet channel 33, the air outlet 122 is communicated with an air outlet channel 34 of the fuel cell stack 3, and the second sealing ring is disposed between the air outlet 122 and the air outlet channel 34, wherein the first sealing ring 325 can be the same as the second. The first seal 324 can be the same as the second seal: in the actual assembly process, the first seal ring 325 and the second seal ring may be the same seal ring or different seal rings under the condition of satisfying the sealing effect.

The first side plate 14 and the second side plate are provided on the bottom plate 11 at intervals in the left-right direction of the housing 1, and a through hole 15 is provided on each of the first end plate 12, the second end plate 13, the first side plate 14, the second side plate, and the bottom plate 11, it being understood that the through hole 15 for reducing the weight of the housing 1 is provided on each of the first end plate 12, the second end plate 13, the first side plate 14, the second side plate, and the bottom plate 11 without affecting the structural strength of the first end plate 12, the second end plate 13, the first side plate 14, the second side plate, and the bottom plate 11, and the cross section of the through hole 15 can be any shape.

Wherein, a containing cavity is defined among the bottom plate 11, the first end plate 12, the second end plate 13, the first side plate 14 and the second side plate, the upper end of the containing cavity is open, the first side plate 14 and the second side plate are detachably connected with the bottom plate 11, and the first end plate 12 and the second end plate 13 are detachably connected with the bottom plate 11.

The lengths of the first end plate 12 and the second end plate 13 in the vertical direction are equal, the lengths of the first side plate 14 and the second side plate in the vertical direction are equal, and the length of the first end plate 12 in the vertical direction is greater than the length of the first side plate 14 in the vertical direction.

The cover 2 is detachably mounted on the housing 1, and the cover 2 covers the opening and is connected to the upper end of each of the first end plate 12, the second end plate 13, the first side plate 14, and the second side plate.

The fuel cell stack 3 is disposed in the housing cavity, and the fuel cell stack 3 is sandwiched between the first end plate 12 and the second end plate 13.

The upper surface (first surface) of the first end plate 12 is provided with a plurality of first protrusions 124, the plurality of first protrusions 124 are arranged at intervals in the left-right direction, and each of the plurality of first protrusions 124 is provided with a first sub-through hole 1241 penetrating through the first protrusion 124 in the front-rear direction.

A plurality of second protrusions 125 are provided on a lower surface (second surface) of the first end plate 12, the plurality of second protrusions 125 are arranged at intervals in the left-right direction, and each of the plurality of second protrusions 125 is provided with a second sub-through hole 1251 penetrating the second protrusion 125 in the front-rear direction. It is understood that the plurality of second protrusions 125 and the plurality of first protrusions 124 may be opposite to each other in the vertical direction, and the plurality of second protrusions 125 may not be opposite to the plurality of first protrusions 124 in the vertical direction.

A plurality of third protrusions 131 are provided on an upper surface (third surface) of the second end plate 13, the plurality of third protrusions 131 are arranged at intervals in the left-right direction, and each of the plurality of third protrusions 131 is provided with a third sub-through hole 1311 penetrating through the third protrusion 131 in the front-rear direction.

A plurality of fourth protrusions 132 are provided on the lower surface (fourth surface) of the second end plate 13, the plurality of fourth protrusions 132 are arranged at intervals in the left-right direction, and each of the plurality of fourth protrusions 132 is provided with a fourth sub-through hole 1321 penetrating the fourth protrusion 132 in the front-rear direction. It is understood that the plurality of third protrusions 131 and the plurality of fourth protrusions 132 may be opposite to each other in the vertical direction, and the plurality of third protrusions 131 may not be opposite to the plurality of fourth protrusions 132 in the vertical direction.

The plurality of first protrusions 124 are opposed to the plurality of third protrusions 131 one by one in the front-rear direction, and the plurality of second protrusions 125 and the plurality of fourth protrusions 132 are opposed to one by one in the front-rear direction.

The axes of the first sub through hole 1241 on the opposite first protrusion 124 and the third sub through hole 1311 on the third protrusion 131 opposite thereto are collinear. The axes of the second sub through hole 1251 on the opposing second convex portion 125 and the fourth sub through hole 1321 on the fourth convex portion 132 opposing thereto are collinear.

Each of the plurality of first connectors 6 sequentially passes through one first sub through-hole 1241 and the third sub through-hole 1311 opposite thereto, and each of the plurality of second connectors 7 sequentially passes through one second sub through-hole 1251 and the fourth sub through-hole 1321 opposite thereto. The first sub through hole 1241, the second sub through hole 1251, the third sub through hole 1311 and the fourth sub through hole 1321 are provided with internal threads, the first end and the second end of the first connecting piece 6 are both provided with external threads, the first end of the first connecting piece 6 is matched in the first sub through hole 1241, the second end of the first connecting piece 6 is matched in the third sub through hole 1311, the first end and the second end of the second connecting piece 7 are both provided with external threads, the first end of the second connecting piece 7 is matched in the second sub through hole 1251, and the second end of the second connecting piece 7 is matched in the fourth sub through hole 1321.

The joint of the cover 2 and the upper surface of the first end plate 12 is provided with a plurality of first recesses 21 corresponding to the plurality of first protrusions 124 one by one, and at least a part of the first protrusions 124 is accommodated in the first recesses 21. Wherein the at least partial accommodation of the first protrusion 124 within the first recess 21 means: in the front-rear direction, a part of the first convex portion 124 fits into the first concave portion 21, specifically, when the thickness of the first convex portion 124 is larger than the thickness of the first concave portion 21, a part of the first convex portion 124 fits into the first concave portion 21 and the other part of the first convex portion 124 is exposed to the first concave portion 21.

The joint of the cover 2 and the upper surface of the second end plate 13 is provided with a plurality of second recesses corresponding to the plurality of third protrusions 131 one to one, and at least a part of the third protrusions 131 is accommodated in the second recesses. Wherein the accommodation of at least part of the third protrusion 131 within the second recess means: a portion of the third protrusion 131 fits into the second recess in the front-rear direction, and specifically, when the thickness of the third protrusion 131 is greater than the thickness of the second recess, a portion of the third protrusion 131 fits into the second recess in the front-rear direction, and another portion of the third protrusion 131 is exposed to the second recess.

The junction of the bottom plate 11 and the lower surface of the first end plate 12 is provided with a plurality of third recesses 111 corresponding to the plurality of second protrusions 125 one-to-one, and at least a portion of the second protrusions 125 is received in the third recesses 111. Wherein the at least partial accommodation of the second protrusion 125 within the third recess 111 means: in the front-rear direction, a part of the second projection 125 fits into the third recess 111, and specifically, when the thickness of the second projection 125 is larger than the thickness of the third recess 111, a part of the second projection 125 fits into the third recess 111 and another part of the second projection 125 is exposed to the third recess 111 in the front-rear direction.

The junction of the bottom plate 11 and the lower surface of the second end plate 13 is provided with a plurality of fourth recesses corresponding to the plurality of fourth protrusions 132 one to one, and at least a part of the fourth protrusions 132 is received in the fourth recesses. Wherein the accommodation of at least a portion of the fourth protrusion 132 within the fourth recess means: a portion of the fourth convex portion 132 fits into the fourth concave portion in the front-rear direction, and specifically, when the thickness of the fourth convex portion 132 is larger than that of the fourth concave portion, a portion of the fourth convex portion 132 fits into the fourth concave portion in the front-rear direction, and the other portion of the fourth convex portion 132 is exposed to the fourth concave portion.

An air inlet bypass 123 extending from left to right is arranged on the left side surface of the first end plate 12, the air inlet bypass 123 is communicated with the air inlet 121, and a first end of the connecting pipe 5 is communicated with the air inlet bypass 123. Wherein the air inlet bypass 123, the air inlet 121 and the air outlet 122 are provided with internal threads.

The cover 2 further comprises a signal integration board 8 and a perforation, the signal integration board 8 being arranged inside the cover 2 adjacent to the first end plate 12, the perforation being located opposite the cover 2 from the signal integration board 8, the signal integration board 8 comprising at least a pressure sensor and/or a temperature sensor, the second end of the connection tube being connected to the pressure sensor, as will be appreciated by the person skilled in the art.

In some other embodiments, the length of the cover 2 and the base plate 11 in the front-rear direction is less than the length between the front surface of the first end plate 12 and the rear surface of the second end plate 13 to allow movement within a certain range (front-rear direction) during assembly of the cover 2 and the base plate 11, it being understood that the length of the cover 2 and the base plate 11 is at least the same as the length from the front surface of the first end plate 12 to the front surface of the second end plate 13.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An air-cooling type fuel cell device, characterized by comprising:

a housing, the housing comprising:

a base plate;

the first end plate and the second end plate are arranged on the bottom plate at intervals along the length direction of the shell, and the first end plate is provided with an air inlet and an air outlet; and

the first side plate and the second side plate are arranged on the bottom plate at intervals along the width direction of the shell, at least one of the first end plate, the second end plate, the first side plate, the second side plate and the bottom plate is provided with a through hole, an accommodating cavity is defined among the bottom plate, the first end plate, the second end plate, the first side plate and the second side plate, and the upper end of the accommodating cavity is open;

a cover mounted on the housing, the cover covering the opening of the receiving cavity; and

a fuel cell stack disposed within the receiving cavity, the fuel cell stack being sandwiched between the first end plate and the second end plate.

2. The air-cooled fuel cell device according to claim 1, wherein the through-hole is provided in each of the first end plate, the second end plate, the first side plate, the second side plate, and the bottom plate.

3. The air-cooled fuel cell device according to claim 1, wherein an intake bypass is provided in the first end plate, the intake bypass communicating with the intake port, and the air-cooled fuel cell device further comprises:

the pressure sensor is arranged on the signal integration board, the signal integration board is arranged in the cover body, and a through hole is formed in the part of the cover body opposite to the signal integration board; and

the first end of the connecting pipe is communicated with the air inlet bypass, the second end of the connecting pipe is connected with the pressure sensor, and the first end of the connecting pipe is located in the air inlet bypass.

4. The air-cooling fuel cell device according to claim 1, further comprising a fan that is mounted on the hood, the fan being opposed to the fuel cell stack in a height direction of the housing.

5. The air-cooling fuel cell device according to claim 1, wherein the first end plate has a first surface and a second surface that are opposed in a height direction of the case, the first surface is provided with a first convex part, the second surface is provided with a second convex part, the second end plate is provided with a third surface and a fourth surface which are opposite in the height direction of the shell, the third surface is provided with a third convex part, the fourth surface is provided with a fourth convex part, the cover body is provided with a first concave part and a second concave part, at least a portion of the first protrusion is received within the first recess, at least a portion of the third protrusion is received within the second recess, the bottom plate has a third recess in which at least a portion of the second projection is received and a fourth recess in which at least a portion of the fourth projection is received.

6. The air-cooling fuel cell device according to claim 5, wherein the first protrusions are plural, the third protrusions are plural, the first protrusions are arranged at intervals in a width direction of the case, the third protrusions are arranged at intervals in the width direction of the case, the first protrusions and the third protrusions are opposed to each other one by one in a longitudinal direction of the case,

the second convex parts are arranged in a plurality, the fourth convex parts are arranged in a plurality, the second convex parts are arranged at intervals along the width direction of the shell, the fourth convex parts are arranged at intervals along the width direction of the shell, and the second convex parts and the fourth convex parts are opposite to each other one by one in the length direction of the shell;

the cover body is provided with a plurality of first concave parts and a plurality of second concave parts, the plurality of first concave parts are in one-to-one correspondence with the plurality of first convex parts, the plurality of second concave parts are in one-to-one correspondence with the plurality of third convex parts, the bottom plate is provided with a plurality of third concave parts and a plurality of fourth concave parts, the plurality of third concave parts are in one-to-one correspondence with the plurality of second convex parts, and the plurality of fourth concave parts are in one-to-one correspondence with the plurality of fourth convex parts.

7. The air-cooled fuel cell device according to claim 6, wherein the first projection is provided with a first sub-through hole extending in a longitudinal direction of the housing, the second projection is provided with a second sub-through hole extending in the longitudinal direction of the housing, the third projection is provided with a third sub-through hole extending in the longitudinal direction of the housing, and the fourth projection is provided with a fourth sub-through hole extending in the longitudinal direction of the housing, axes of the first sub-through hole in the first projection and the third sub-through hole in the third projection that face each other are collinear, and axes of the second sub-through hole in the second projection and the fourth sub-through hole in the fourth projection that face each other are collinear.

8. The air-cooled fuel cell device according to claim 7, further comprising a plurality of first connectors and a plurality of second connectors, each of the plurality of first connectors passing through the first sub through-hole of one of the first convex portions and the third sub through-hole of the third convex portion opposite thereto, and each of the plurality of second connectors passing through the second sub through-hole of one of the second convex portions and the fourth sub through-hole of the fourth convex portion opposite thereto.

9. The air-cooling fuel cell device according to claim 1, wherein the first end plate and the second end plate have the same length in the height direction of the case, the first side plate and the second side plate have the same length in the height direction of the case, and the length of the first end plate in the height direction of the case is larger than the length of the first side plate in the height direction of the case.

10. The air-cooled fuel cell device according to claim 1, wherein a thickness of at least one of the first end plate and the second end plate is equal to or greater than a preset value, each of the first end plate and the second end plate has first and second side surfaces opposed in a width direction of the case, the first side surface and the second side surface of the at least one of the first end plate and the second end plate each have an elongated hole extending in a longitudinal direction of the case or the cover and the bottom plate have elongated holes extending in a longitudinal direction of the case, the cover is mounted on the at least one of the first end plate and the second end plate by a fastener passing through an elongated hole on the cover, the bottom plate is mounted on the at least one of the first end plate and the second end plate by a fastener passing through an elongated hole on the bottom plate.