CN109616687B

CN109616687B - Fuel cell with packaging mechanism

Info

Publication number: CN109616687B
Application number: CN201811475476.5A
Authority: CN
Inventors: 卢璐; 邓晗; 徐洪峰; 史继诚; 傅杰; 刘明
Original assignee: Dalian Jiaotong University
Current assignee: Dalian Yiyuan Hydrogen Energy Technology Co.,Ltd.
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2021-03-26
Anticipated expiration: 2038-12-04
Also published as: CN109616687A

Abstract

The invention discloses a fuel cell with a packaging mechanism, which comprises a hydrogen conveying port, a base, a shell and a catalyst layer, wherein two ends of the top of the base are provided with stand columns. According to the invention, the shell is arranged at the top of the base close to the inner side of the upright column, the first limiting blocks are uniformly arranged at the outer sides of the upright columns close to the shell, the fastening rods are arranged between the adjacent first limiting blocks, the two ends of each fastening rod respectively penetrate through the outer sides of the limiting blocks and are respectively provided with the first fastening nut, the second limiting blocks are uniformly arranged at the outer sides of the fuel cells close to the flow field plates, the pull rods are arranged between the adjacent second limiting blocks, and the two ends of each pull rod respectively penetrate through the second limiting blocks and extend to the outer sides of the second limiting blocks and are provided with the second fastening nuts, so that the stability of the fuel cells is improved, the supporting force is increased, the use safety of the fuel cells is ensured, and the shell is made of industrial plastics, has excellent.

Description

Fuel cell with packaging mechanism

Technical Field

The invention relates to the technical field of batteries, in particular to a fuel battery with a packaging mechanism.

Background

The fuel cell is a chemical device which directly converts chemical energy of fuel into electric energy, and is also called as an electrochemical generator, because the fuel cell converts the Gibbs free energy part in the chemical energy of the fuel into the electric energy through electrochemical reaction, and is not limited by Carnot cycle effect, the efficiency is high; in addition, the fuel and oxygen for the fuel cell are used as materials without mechanical transmission parts, so the fuel cell has the advantages of no noise raw materials, very little discharged harmful gas, flexible and convenient use, high energy density and the like, and thus, the fuel cell is the green and environment-friendly power generation technology with the greatest development prospect.

Existing, when the fuel cell is used, the heat dissipation effect is poor and the efficiency is low, the heat generated inside can not be dissipated in time, thereby the use safety performance and the service life of the cell are reduced, meanwhile, the provided packaging mechanism can not ensure uniform and constant stress, the internal resistance of each point inside the cell stack is uneven and the reaction efficiency is inconsistent, thereby the heat productivity at each position is inconsistent, local overheating is easily caused, the normal work of the cell stack can not be ensured when the cell stack body is damaged, the cell stack is easily damaged when the local pressure is too high, the service life is reduced, in addition, as the cell stack is overlapped together by carbon plates, the cell stack is easily sagged under the gravity of the cell stack, the stability performance and the supporting force during the use are insufficient, and the quality of the fuel cell is influenced.

Disclosure of Invention

The invention aims to provide a fuel cell with a packaging mechanism, which aims to solve the problems that the prior art has poor heat dissipation effect and low efficiency, can not dissipate the heat generated inside in time, thereby reducing the use safety performance and the service life of the cell, and meanwhile, the provided packaging mechanism can not ensure uniform and constant stress, easily causes local overheating, damages a cell stack body, can not ensure the normal work of the cell stack, and has poor stability and insufficient supporting force, thereby influencing the quality of the fuel cell.

In order to achieve the purpose, the invention provides the following technical scheme: a fuel cell with a packaging mechanism comprises a hydrogen conveying port, a base, a shell and a catalyst layer, wherein stand columns are mounted at two ends of the top of the base, the shell is mounted at the inner side, close to the stand columns, of the top of the base, first limiting blocks are uniformly mounted at the outer side, close to the shell, of the stand columns, fastening rods are arranged between the adjacent first limiting blocks, two ends of each fastening rod penetrate through the outer side of each first limiting block respectively and are provided with a first fastening nut respectively, the center position inside the shell is provided with the fuel cell, flow field plates are mounted around the outer side of the fuel cell respectively, a cell stack is arranged inside the fuel cell, a core rod is fixedly mounted at the center position of the fuel cell, two ends of each core rod penetrate through the shell and extend to the outer side of the shell and are provided with an anode and a cathode respectively, and second partition plates are mounted at two sides, an air duct is arranged between the second clapboard and the shell, radiating holes are uniformly arranged on the second clapboard, radiating fins are uniformly arranged on one side of the second clapboard close to the air duct, the second clapboard is fixedly connected with the flow field plate through a fixing piece, a first ventilating hole and a second ventilating hole are respectively arranged at the positions of two ends of the outer side of the shell close to the air duct, one ends of the first ventilating hole and the second ventilating hole far away from the air duct penetrate through the shell and extend to the outer part of the shell, a lug is uniformly arranged on one side of the second clapboard close to the fuel cell, a through hole is arranged at one end of the lug far away from the second clapboard, a fixed cavity is arranged in the lug, a spring is arranged in the fixed cavity, a fixed rod is arranged at one end of the spring close to the through hole through a limiting block, and one end of the fixed rod far away from the limiting, the fuel cell is close to the outside of flow field board and evenly installs the second stopper, and all is equipped with the pull rod between the adjacent second stopper, and the both ends of pull rod run through the outside that the second stopper extends to the second stopper respectively and install second fastening nut.

Preferably, the outer sides of the anode and the cathode are both provided with protective covers, and one ends of the anode and the cathode of each protective cover are both fixedly connected with the shell.

Preferably, the casing is made of engineering plastics, first partition plates are arranged at two ends, close to the fuel cell, of the interior of the casing, and two ends of each first partition plate are fixedly connected with the corresponding second partition plate.

Preferably, a hydrogen conveying port and a water outlet are respectively installed at two ends, close to the anode, of the outer side of one end of the shell, and an oxygen conveying port and an air outlet are respectively installed at two ends, close to the cathode, of the outer side of the other end of the shell.

Preferably, the fixed block is all installed at the top of stand, and the handle is all installed through the axis of rotation at the top of fixed block.

Preferably, the outer side surfaces of the flow field plates are plated with platinum-loaded carbon catalyst layers, and the platinum-loaded carbon catalyst layers and the flow field plates are matched with each other to form a medium transmission structure.

Compared with the prior art, the invention has the beneficial effects that: the fuel cell with the packaging mechanism is characterized in that second partition plates are arranged on two sides of the interior of a shell close to the fuel cell, an air channel is arranged between the second partition plates and the shell, radiating holes are uniformly formed in the second partition plates, radiating fins are uniformly arranged on one side of the second partition plates close to the air channel, first ventilating holes and second ventilating holes are respectively arranged at two ends of the outer side of the shell close to the air channel, one ends of the first ventilating holes and the second ventilating holes, which are far away from the air channel, penetrate through the shell and extend to the outside of the shell, so that the device can naturally form radiating channels with the interior of the shell when the fuel cell is installed and fixed, and can be matched with the radiating fins for use, thereby the radiating effect and the radiating efficiency of the device are better, the service life and the practicability of the fuel cell are improved, flow field plates are arranged on the periphery of the outer side of the fuel cell, and the second partition, the casing is an engineering plastic integrated structure, the two ends of the inside of the casing close to the fuel cell are both provided with a first clapboard, the two ends of the first clapboard are respectively and fixedly connected with a second clapboard, one side of the second clapboard close to the fuel cell is uniformly provided with a lug, one end of the lug far away from the second clapboard is provided with a through hole, the inside of the lug is provided with a fixed cavity, the inside of the fixed cavity is provided with a spring, one end of the spring close to the through hole is provided with a fixed rod through a limit block, and one end of the fixed rod far away from the limit block penetrates through the through hole to extend to the outer side of the first limit block and is fixedly connected with a flow field plate, so as to ensure that the mounted fuel cell packaging mechanism can uniformly and constantly bear force, avoid the cell stack being damaged by local overheating when in use, thereby ensuring the normal use of the fuel cell, and simultaneously playing the functions, and the top of base is close to the inboard of stand and installs the casing, the stand is close to the outside of casing and evenly installs first stopper, and all be equipped with the anchorage bar between the adjacent first stopper, the both ends of anchorage bar run through the outside of stopper respectively and install first fastening nut respectively and the outside that fuel cell is close to the flow field board is evenly installed the second stopper, and all be equipped with the pull rod between the adjacent second stopper, the both ends of pull rod run through the outside that the second stopper extends to the second stopper respectively and install second fastening nut, be convenient for improve fuel cell's stability can with increase the support dynamics, also guarantee the security of its use simultaneously, and the casing is made for industrial plastic, good insulating properties has, need not to set up other insulating material again.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic diagram of the external structure of a fuel cell according to the present invention;

fig. 4 is a partially enlarged structural diagram of a in fig. 2 according to the present invention.

In the figure: 1. a handle; 2. a fixed block; 3. a first vent hole; 4. a hydrogen gas delivery port; 5. a positive electrode; 6. a protective cover; 7. a water outlet; 8. a first stopper; 9. a base; 10. a second vent hole; 11. a housing; 12. an exhaust port; 13. a negative electrode; 14. an oxygen delivery port; 15. a column; 16. a fastening rod; 17. a rotating shaft; 18. a cell stack; 19. a first separator; 20. a second separator; 21. heat dissipation holes; 22. a fixing member; 23. a core bar; 24. a first fastening nut; 25. a fuel cell; 26. a heat dissipating fin; 27. a pull rod; 28. a second fastening nut; 29. fixing the rod; 30. a limiting block; 31. a spring; 32. a bump; 33. a fixed cavity; 34. a through hole; 35. an air duct; 36. a second limiting block; 37. a flow field plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a fuel cell with a packaging mechanism comprises a hydrogen conveying port 4, a base 9, a shell 11 and a catalyst layer 25, wherein two ends of the top of the base 9 are provided with upright posts 15, the inner side of the top of the base 9 close to the upright posts 15 is provided with the shell 11, the top of each upright post 15 is provided with a fixed block 2, the top of each fixed block 2 is provided with a handle 1 through a rotating shaft 17, the outer side of each upright post 15 close to the shell 11 is uniformly provided with first limit blocks 8, fastening rods 16 are arranged between the adjacent first limit blocks 8, two ends of each fastening rod 16 respectively penetrate through the outer sides of the first limit blocks 8 and are respectively provided with a first fastening nut 24, the central position inside the shell 11 is provided with the

fuel cell

25, 37 is arranged on the periphery of the outer side of a flow field plate of the fuel cell 25, the outer side surface of the 37 is plated with a platinum-loaded carbon catalyst layer, and the platinum-loaded, the shell 11 is made of engineering plastics, two ends of the interior of the shell 11 close to the fuel cell 25 are both provided with a first clapboard 19, two ends of the first clapboard 19 are respectively and fixedly connected with a second clapboard 20, the interior of the fuel cell 25 is provided with a cell stack 18, a central position of the fuel cell 25 is fixedly provided with a core bar 23, two ends of the core bar 23 penetrate through the shell 11 and extend to the outer side of the shell 11 and are respectively provided with an anode 5 and a cathode 13, the outer sides of the anode 5 and the cathode 13 are both provided with a protective cover 6, one ends of the anode 5 and the cathode 13 of the protective cover 6 are both fixedly connected with the shell 11, two ends of the outer side of one end of the shell 11 close to the anode 5 are respectively provided with a hydrogen conveying port 4 and a water outlet 7, two ends of the outer side of the other end of the shell 11 close to the cathode 13 are respectively provided with an oxygen conveying port 14 and an air outlet 12, an air duct 35 is arranged between the second separation plate 20 and the housing 11, heat dissipation holes 21 are evenly arranged on the second separation plate 20, heat dissipation fins 26 are evenly arranged on one side, close to the air duct 35, of the second separation plate 20, the second separation plate 20 is fixedly connected with a flow field plate 37 through fixing pieces 22, first ventilation holes 3 and second ventilation holes 10 are respectively arranged at two ends, close to the air duct 35, of the outer side of the housing 11, one ends, far away from the air duct 35, of the first ventilation holes 3 and the second ventilation holes 10 penetrate through the housing 11 and extend to the outside of the housing 11, a protruding block 32 is evenly arranged on one side, close to the fuel cell 25, of the second separation plate 20, a through hole 34 is arranged at one end, far away from the second separation plate 20, of the protruding block 32, a fixing cavity 33 is arranged inside the protruding block 32, a spring 31 is arranged inside the fixing cavity 33, a fixing rod 29 is arranged at one end, close to the through hole 34, of the fixing rod The outer sides of the fuel cells 25 close to the flow field plates 37 are uniformly provided with second limiting blocks 36, a pull rod 27 is arranged between every two adjacent second limiting blocks 36, and two ends of the pull rod 27 penetrate through the second limiting blocks 36 respectively and extend to the outer sides of the second limiting blocks 36 and are provided with second fastening nuts 28.

The working principle is as follows: when in use, firstly, the cell stacks 18 are orderly arranged together, then the flow field plate 37 is arranged at the outer side of the cell stack 18, the pull rods 27 respectively penetrate through the second limiting blocks 36 arranged at the outer side of the flow field plate 37 to tightly press and fix the cell stack 18 by using the second fastening nuts 28, then the flow field plate 37 is fixed with the second clapboard 20 arranged inside the shell 11 by the fixing piece 22, after the shell 11 is installed inside, the shell 11 is arranged on the base 9, meanwhile, the fastening rods 16 respectively penetrate through the first limiting blocks 8 to fix the shell 11 by using the first fastening nuts 24, after the fixing is finished, the stability of the fuel cell is improved and the supporting force is increased, then the hydrogen pipeline and the air pipeline are respectively connected with the hydrogen delivery port 4 and the oxygen delivery port 14 arranged on the device, so that the hydrogen and the oxygen in the air generate electricity, the water produced during power generation is discharged through the water outlet 7, meanwhile, the water outlet 7 connecting pipeline can be utilized, redundant oxygen is discharged from the air outlet 12, in the using process, the shell 11 has a good insulation effect, meanwhile, the spring 31 and the fixing rod 29 which are arranged inside the lug 32 are mutually matched, the uniform and constant stress of the packaging mechanism of the fuel cell 25 is ensured, the damage to the cell stack 18 caused by local overheating is effectively avoided, so that the fuel cell 25 can work normally, the heat produced inside the shell 11 can be conveyed to the inside of the air channel 35 through the heat dissipation hole 21 through the gap between the fuel cell 25 and the shell 11 in the using process, the heat is conducted by the heat dissipation fins 26 and is discharged through the first ventilation hole 3 and the second ventilation hole 10 respectively again, and meanwhile, the first ventilation hole 3 and the second ventilation hole 10 can also carry out air circulation, the fuel cell 25 is capable of supplying electricity to the required electrical components by the electrical energy generated during operation, connected to the positive electrode 5 and the negative electrode 13.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A fuel cell provided with a packaging mechanism, comprising a hydrogen gas delivery port (4), a base (9), a case (11) and a fuel cell (25), characterized in that: the fuel cell comprises a base (9), columns (15) are mounted at two ends of the top of the base (9), a shell (11) is mounted on the inner side, close to the columns (15), of the top of the base (9), first limiting blocks (8) are uniformly mounted on the outer side, close to the shell (11), of the columns (15), fastening rods (16) are arranged between the adjacent first limiting blocks (8), two ends of each fastening rod (16) penetrate through the outer side of each first limiting block (8) and are provided with a first fastening nut (24), a fuel cell (25) is arranged at the center position inside the shell (11), flow field plates (37) are mounted on the periphery of the outer side of each fuel cell (25), a cell stack (18) is arranged inside each fuel cell (25), a core rod (23) is fixedly mounted at the center position of each fuel cell (25), two ends of each core rod (23) penetrate through the shell (11) and extend to the outer side of the shell (11) and are provided with an anode (5), the fuel cell air-conditioning device is characterized in that second partition plates (20) are arranged on two sides, close to a fuel cell (25), of the interior of the shell (11), air channels (35) are arranged between the second partition plates (20) and the shell (11), heat dissipation holes (21) are evenly formed in the second partition plates (20), heat dissipation fins (26) are evenly arranged on one sides, close to the air channels (35), of the second partition plates (20), the second partition plates (20) are fixedly connected with flow field plates (37) through fixing pieces (22), first ventilation holes (3) and second ventilation holes (10) are respectively arranged at positions, close to the air channels (35), of two ends of the outer side of the shell (11), one ends, far away from the air channels (35), of the first ventilation holes (3) and the second ventilation holes (10) penetrate through the shell (11) and extend to the outer portion of the shell (11), and bumps (32) are evenly arranged on one sides, close to the fuel cell (25), of, and the one end that second baffle (20) was kept away from in lug (32) is equipped with through-hole (34), the inside of lug (32) is equipped with fixed chamber (33), and the internally mounted in fixed chamber (33) has spring (31), dead lever (29) are installed through stopper (30) in the one end that spring (31) are close to through-hole (34), and dead lever (29) keep away from the one end of stopper (30) run through-hole (34) extend to the outside of stopper (30) and with flow field board (37) fixed connection, second stopper (36) are evenly installed in the outside that fuel cell (25) are close to flow field board (37), and all are equipped with between adjacent second stopper (36) pull rod (27), and the both ends of pull rod (27) run through second stopper (36) respectively and extend to the outside of second stopper (36) and install second fastening nut (28).

2. A fuel cell provided with a packaging mechanism according to claim 1, wherein: the outside of anodal (5) and negative pole (13) all is equipped with protection casing (6), and the one end of protection casing (6) anodal (5) and negative pole (13) all with casing (11) fixed connection.

3. A fuel cell provided with a packaging mechanism according to claim 1, wherein: the casing (11) are made of engineering plastics, first partition plates (19) are mounted at two ends, close to the fuel cell (25), of the interior of the casing (11), and two ends of each first partition plate (19) are fixedly connected with the corresponding second partition plate (20).

4. A fuel cell provided with a packaging mechanism according to claim 1, wherein: the hydrogen conveying port (4) and the water outlet (7) are respectively installed at two ends, close to the anode (5), of the outer side of one end of the shell (11), and the oxygen conveying port (14) and the air outlet (12) are respectively installed at two ends, close to the cathode (13), of the outer side of the other end of the shell (11).

5. A fuel cell provided with a packaging mechanism according to claim 1, wherein: fixed block (2) are all installed at the top of stand (15), and handle (1) are all installed through axis of rotation (17) at the top of fixed block (2).

6. A fuel cell provided with a packaging mechanism according to claim 1, wherein: the outer side surfaces of the flow field plates (37) are plated with platinum-loaded carbon catalyst layers, and the platinum-loaded carbon catalyst layers and the flow field plates (37) are matched with each other to form a medium transmission structure.