CN108598544B - Variable fastening pressure head and proton exchange membrane fuel cell stacking device - Google Patents
Variable fastening pressure head and proton exchange membrane fuel cell stacking device Download PDFInfo
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- CN108598544B CN108598544B CN201810347306.2A CN201810347306A CN108598544B CN 108598544 B CN108598544 B CN 108598544B CN 201810347306 A CN201810347306 A CN 201810347306A CN 108598544 B CN108598544 B CN 108598544B
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- 239000000446 fuel Substances 0.000 title claims abstract description 33
- 239000012528 membrane Substances 0.000 title abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 113
- 238000009434 installation Methods 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 210000000078 claw Anatomy 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 36
- 230000008859 change Effects 0.000 description 6
- 210000003850 cellular structure Anatomy 0.000 description 5
- 238000009827 uniform distribution Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a variable fastening pressure head and a proton exchange membrane fuel cell stack loading device, which are used for pressing a proton exchange membrane fuel cell stack, and the variable fastening pressure head comprises: the device comprises a mounting seat, a pressing claw assembly and an adjusting mechanism; the mounting seat comprises a pressure plate and a linear driving connecting seat which are arranged at intervals in the front-back direction; the pressing claw assembly comprises a plurality of pressing blocks which are rotatably installed and circumferentially distributed at the front end of the pressing plate, the inner end and the outer end of each pressing block correspond to a rotating installation end and a swinging end, and the rotating installation end of each pressing block is rotatably installed on the pressing plate; the adjusting mechanism is in driving connection with the pressing blocks, so that the pressing blocks rotate around the rotating installation end, and in a rotating stroke, the distance between the swinging end and the center of the pressure plate changes.
Description
Technical Field
The invention relates to the field of proton exchange membrane fuel cell production equipment, in particular to a variable fastening pressure head and a proton exchange membrane fuel cell stacking device.
Background
The proton exchange membrane fuel cell stack mainly comprises a stack clamping plate, an insulating plate, a current collector, a flow field plate, a membrane electrode and a sealing element, and the fuel cell stack is used after the components are assembled. When assembling the proton exchange membrane fuel cell stack, firstly, the pressure mechanism is used for fixing and pressing the components in a certain sequence through the fastening pressure head, and then the screw or the ribbon is used for locking, so that the assembly of the galvanic pile is completed. The pressure mechanism conducts pressure to the cell stack through the fastening pressure head, and meanwhile, the fastening pressure head needs to apply force uniformly, so that damage caused by uneven stress of the cell stack is avoided. In the conventional stack pressing process, the fastening pressure heads are matched with the specifications of the force application end faces of the stack, namely, one set of fastening pressure heads only corresponds to a fuel cell stack with one size specification.
In the existing fuel cell stack assembly technology, only a certain specification of fuel cells are tightly pressed, and the fastening pressure head only aims at the specification of the fuel cell stack.
In the application of the fuel cell, the fuel cell component is designed into specifications with different areas and shapes according to the cell output power with different powers, and the action areas of the fastening pressure head for applying the clamping force are different at the moment. When the specification and the size of the battery component change, according to the prior art, the fastening pressure head for clamping the battery must be designed in a matched mode again, so that the assembly cost of the electric pile is increased due to the change of the specification of the battery, the period is prolonged, and the assembly reliability of the electric pile is low.
Meanwhile, in the prior art, aiming at fuel cells with different specifications, the force application fastening chuck easily causes uneven stress on a cell stack, so that a flow field plate and a membrane electrode in the cell are unevenly stressed, and cell components are damaged.
Disclosure of Invention
The invention mainly aims to provide a variable fastening pressure head and a proton exchange membrane fuel cell stacking device, and aims to solve the problem that in the prior art, aiming at fuel cells with different specifications, a force application fastening chuck easily causes uneven stress on a cell stack, so that a flow field plate and a membrane electrode in the cell are unevenly stressed, and cell components are damaged.
In order to achieve the above object, the present invention provides a variable tightening ram comprising:
the mounting seat comprises a pressure plate and a linear driving connecting seat which are arranged at intervals in the front-back direction;
the pressing claw assembly comprises a plurality of pressing blocks which are rotatably installed and circumferentially distributed at the front end of the pressing plate, each pressing block is provided with a rotating installation end close to the center of the pressing plate and a swinging end far away from the center of the pressing plate, and the rotating installation end of each pressing block is rotatably installed on the pressing plate; and the number of the first and second groups,
and the adjusting mechanism is in driving connection with each pressing block so that the pressing block rotates around the rotating installation end, and the distance between the swinging end and the center of the pressure plate is changed in the rotating process.
Preferably, the swivel mounting end of the pressure piece is located offset from the center of the pressure plate such that the distance between the oscillation end and the center of the pressure plate varies during a swivel stroke.
Preferably, the front end face of the pressure plate is provided with a plurality of pressing block flanges in a forward protruding mode, and the area for installing the rotating installation end of the pressing block is limited by two adjacent pressing block flanges.
Preferably, the pressure disk with all seted up the stud hole on the linear drive connecting seat, the pressure disk with the linear drive connecting seat passes through the stud and links to each other, just the stud is located the pressure disk with partly cover is equipped with the sleeve between the linear drive connecting seat, the sleeve is used for accomplishing the interval sets up.
Preferably, the adjusting mechanism is a transmission gear set, the transmission gear set comprises a central gear arranged between the pressure plate and the linear driving connecting seat and planetary gears in one-to-one correspondence with the rotation mounting ends of the pressing blocks, and the central gear is externally meshed with the planetary gears and is used for driving the planetary gears to synchronously rotate by rotating the central gear so as to adjust the synchronous rotation of the pressing blocks.
Preferably, a gear shaft mounting hole is formed in the middle of the pressure plate, a gear shaft is arranged in the central gear in a matching manner, the gear shaft penetrates through the gear shaft mounting hole, and the rear end of the gear shaft penetrates through the gear shaft mounting hole and is connected with the central gear in a key manner;
the front end of the gear shaft is provided with a wrench groove used for being matched with an adjusting wrench to adjust the gear shaft to rotate.
Preferably, a gear shaft end cover is installed backwards on the rear end face of the gear shaft, and a gear shaft end cover accommodating groove is formed in the position, corresponding to the gear shaft, of the linear driving connecting seat.
Preferably, the rotary mounting end of the pressing block extends backwards to form a pressing block rotating shaft, a pressing block rotating shaft mounting hole is formed in the position, corresponding to the pressing block rotating shaft, of the pressing plate, and the pressing block rotating shaft penetrates through the pressing block rotating shaft hole backwards;
the rear end of the pressing block rotating shaft extends out of the pressure plate part and is connected with the corresponding planetary gear key.
Preferably, the rear end face of the pressing block rotating shaft is backwards provided with a pressing block rotating shaft end cover, and pressing block rotating shaft end cover accommodating grooves are formed in the positions, corresponding to the pressing block rotating shaft end covers, of the linear driving connecting seat.
The invention further provides a proton exchange membrane fuel cell stacking device, which comprises a variable fastening pressure head, wherein the variable fastening pressure head comprises:
the mounting seat comprises a pressure plate and a linear driving connecting seat which are arranged at intervals in the front-back direction;
the pressing claw assembly comprises a plurality of pressing blocks which are rotatably installed and circumferentially distributed at the front end of the pressing plate, each pressing block is provided with a rotating installation end close to the center of the pressing plate and a swinging end far away from the center of the pressing plate, and the rotating installation end of each pressing block is rotatably installed on the pressing plate; and the number of the first and second groups,
and the adjusting mechanism is in driving connection with each pressing block so that the pressing block rotates around the rotating installation end, and the distance between the swinging end and the center of the pressure plate is changed in the rotating process.
According to the technical scheme provided by the invention, the pressure blocks are connected through the driving of the adjusting mechanism, so that the pressure blocks rotate around the rotating installation end, the distance between the swinging end and the center of the pressure plate is changed in the rotating process, the synchronous motion of the pressure blocks is adjusted through the adjusting mechanism, the same opening angle of the pressure blocks is ensured, and the uniform distribution of the pressure on the contact surface of the pressed unit is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a general schematic view of a variable tightening ram provided by the present invention;
FIG. 2 is an exploded perspective view of the variable tightening ram of FIG. 1;
FIG. 3 is a perspective view of the platen of FIG. 1;
FIG. 4 is a perspective view of the linear driving connecting seat in FIG. 1;
FIG. 5 is a schematic perspective view of the compact of FIG. 1;
fig. 6 is a perspective view of the gear shaft of fig. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In the application of the fuel cell, the fuel cell component is designed into specifications with different areas and shapes according to the cell output power with different powers, and the action areas of the fastening pressure head for applying the clamping force are different at the moment. When the specification and the size of the battery component change, according to the prior art, the fastening pressure head for clamping the battery must be designed in a matched mode again, so that the assembly cost of the electric pile is increased due to the change of the specification of the battery, the period is prolonged, and the assembly reliability of the electric pile is low.
Meanwhile, in the prior art, aiming at fuel cells with different specifications, the force application fastening chuck easily causes uneven stress on a cell stack, so that a flow field plate and a membrane electrode in the cell are unevenly stressed, and cell components are damaged.
The invention provides a variable fastening pressure head and a proton exchange membrane fuel cell stacking device. Fig. 1 to 6 show an embodiment of a variable tightening ram according to the present invention.
Referring to fig. 1 to 3, in the present embodiment, the variable fastening pressure head includes a mounting base 1, a pressure claw assembly 2 and an adjusting mechanism, where the mounting base 1 includes a pressure plate 11 and a linear driving connection base 12 that are arranged along a front-back direction at intervals; the pressing claw assembly 2 comprises a plurality of pressing blocks 21 which are rotatably installed and circumferentially distributed at the front end of the pressing plate 11, the inner end and the outer end of each pressing block 21 correspond to a rotating installation end 211 and a swinging end 212, and the rotating installation end 211 of each pressing block 21 is rotatably installed on the pressing plate 11; the adjusting mechanism is in driving connection with each pressing block 21, so that the pressing blocks 21 rotate around the rotating installation end 211, and in a rotating stroke, the distance between the swinging end 212 and the center of the pressure plate 11 is changed.
In the technical scheme provided by the invention, the pressing blocks 21 are connected through the driving of the adjusting mechanism, so that the pressing blocks 21 rotate around the rotating installation end 211, the distance between the swinging end 212 and the center of the pressure plate 11 is changed in the rotating process, the synchronous motion of the pressing blocks 21 is adjusted through the adjusting mechanism, the same opening angle of the pressing blocks 21 is ensured, and the uniform distribution of the pressure on the contact surface of the pressed unit is realized. The linear driving can be in the driving modes of cylinder driving, linear motor driving and the like.
In order to limit the moving range of each pressing block 21, please refer to fig. 2, a plurality of pressing block flanges 113 are protruded forward from the front end surface of the pressing plate 11, and two adjacent pressing block flanges 113 define an area for mounting the rotating mounting end 211 of the pressing block 21. The arrangement of the pressing block flanges 113 avoids interference caused by excessive rotation of the pressing blocks 21, and is convenient for zero adjustment of the pressing blocks 21 during initial installation of the pressing blocks 21, that is, the pressing blocks 21 are adjusted to positions close to the corresponding pressing block flanges 113 during installation, so that the uniform distribution of the pressing blocks 21 can be realized, and after the assembly is finished, the relative positions of the pressing blocks 21 are always kept in a uniformly distributed state relative to the pressing plate 11, so that the pressing uniformity of the variable pressing head is further ensured.
When the transmission gear set 3 is installed, please refer to fig. 2, stud holes 13 are formed in the pressure plate 11 and the linear driving connecting seat 12, the pressure plate 11 is connected with the linear driving connecting seat 12 through studs 14, a sleeve 15 is sleeved on a portion, located between the pressure plate 11 and the linear driving connecting seat 12, of the studs 14, and the sleeve 15 is used for completing the interval arrangement. Stud 14's the convenient dismouting of this variable fastening pressure head of design, sleeve 15's setting has been guaranteed pressure disk 11 with headspace between the linear drive connecting seat 12 has been avoided drive gear group 3 with pressure disk 11 with produce the interference between the linear drive connecting seat 12, improved the life of this variable pressure head.
There are various ways to change the distance between the swinging end 212 and the center of the pressure plate 11, such as a crank-rocker mechanism, a telescopic rack mechanism, etc. to drive the pressing block 21 to move telescopically, in this embodiment, please refer to fig. 1, where the rotating mounting end 211 of the pressing block 21 is disposed offset from the center of the pressure plate 11. The eccentric arrangement of the rotating installation end 211 of the pressing block 21 enables the distance between the swinging end 212 of each pressing block 21 and the center of the pressure plate 11 to be changed obviously in the rotating process of the swinging end 212 of the pressing block 21, so that the stacking work of proton exchange membrane fuel cell stacks with different sizes is facilitated.
There are various methods for adjusting the rotation of each pressing block 21, such as belt transmission, chain transmission, etc., in this embodiment, referring to fig. 3, the adjusting mechanism is a transmission gear set 3, the transmission gear set 3 includes a central gear 31 disposed between the pressure plate 11 and the linear driving connecting seat 12 and planetary gears 32 corresponding to the rotation mounting ends 211 of each pressing block 21 one by one, the central gear 31 is externally engaged with each planetary gear 32, so as to drive each planetary gear 32 to rotate synchronously by rotating the central gear 31, thereby adjusting the synchronous rotation of each pressing block 21. The adjusting mechanism adopts a transmission gear set 3, the external meshing of the central gear 31 and each planetary gear 32 can enable the rotating mounting end 211 of each pressing block 21 to synchronously rotate, so that the distance between the swinging end 212 of each pressing block 21 and the center of the pressure plate 11 is also synchronously adjusted, the gear transmission is stable, the transmission ratio is constant, the stability of the variable fastening pressure head is ensured, the stress of the pressed part of the proton exchange membrane fuel cell to be stacked is uniform, and the stacking quality of the proton exchange membrane fuel cell is improved.
As further shown in fig. 3, a gear shaft mounting hole 111 is formed in the middle of the pressure plate 11, a gear shaft 311 is cooperatively disposed on the central gear 31, the gear shaft 311 is disposed through the gear shaft mounting hole 111, and a portion of the rear end of the gear shaft 311, which penetrates through the gear shaft mounting hole 111, is connected with the central gear 31 in a key manner; the front end of the gear shaft 311 is provided with a wrench groove 3112 for matching with an adjusting wrench to adjust the rotation of the gear shaft 311; a gear shaft end cover 3111 is installed backwards on the rear end face of the gear shaft 311, and a gear shaft end cover accommodating groove 121 is formed in the linear driving connecting seat 12 and in a position corresponding to the gear shaft 311.
The rear end cooperation of gear shaft 311 is equipped with gear shaft end cover 3111, gear shaft end cover 3111 is installed in the gear shaft end cover holding tank 121 of linear drive connecting seat 12, gear shaft end cover 3111 can play the effect of bearing, and it is right to have reduced gear shaft 311 linear drive connecting seat 12's wearing and tearing, the front end of gear shaft 311 is equipped with spanner recess 3112, spanner recess 3112's size is suitable for setting up like outer hexagonal spanner, outer four corners spanner with current spanner, spanner recess 3112 set up make things convenient for operating personnel right sun gear 31 mediates, and wholly does not increase the taking up in space, and compact structure has avoided the regulation part to treat the proton exchange membrane fuel cell stack production of piling to interfere.
As shown in fig. 3, a pressing block rotating shaft 2111 extends backwards from the rotating mounting end 211 of the pressing block 21, a pressing block rotating shaft mounting hole 112 is formed in the position, corresponding to the pressing block rotating shaft 2111, of the pressing plate 11, and the pressing block rotating shaft 2111 penetrates backwards through the pressing block rotating shaft mounting hole 112; the part of the rear end of the pressing block rotating shaft 2111 extending out of the pressure plate 11 is in key connection with the corresponding planetary gear 32; the rear end face of the pressing block rotating shaft 2111 is backwards provided with a pressing block rotating shaft end cover 2112, and pressing block rotating shaft end cover accommodating grooves 122 are formed in the positions, corresponding to the pressing block rotating shaft end covers 2112, of the linear driving connecting seat 12.
The invention still further provides a proton exchange membrane fuel cell stacking device which comprises the variable fastening pressure head. The proton exchange membrane fuel cell stacking device provided by the invention comprises the variable fastening pressure head, the specific structure of the variable fastening pressure head refers to the above embodiment, and the proton exchange membrane fuel cell stacking device adopts all technical schemes of all the above embodiments, so that the proton exchange membrane fuel cell stacking device at least has all the beneficial effects brought by the technical schemes of the above embodiments, and further description is omitted.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A variable tightening ram for tightening a pem fuel cell stack, the variable tightening ram comprising:
the mounting seat comprises a pressure plate and a linear driving connecting seat which are arranged at intervals in the front-back direction;
the pressing claw assembly comprises a plurality of pressing blocks which are rotatably installed and circumferentially distributed at the front end of the pressing plate, each pressing block is provided with a rotating installation end which is deviated from the center of the pressing plate and a swinging end which is far away from the center of the pressing plate, and the rotating installation end of each pressing block is rotatably installed on the pressing plate, so that the distance between the swinging end and the center of the pressing plate is changed in the rotating process; and the number of the first and second groups,
and the adjusting mechanism is in driving connection with each pressing block so as to enable the pressing blocks to rotate around the rotating installation end.
2. The variable tightening ram of claim 1, wherein the front face of the pressure plate is forwardly convexly provided with a plurality of press block ribs, adjacent press block ribs defining an area for mounting the rotational mounting end of the press block.
3. The variable tightening ram according to claim 1, wherein the pressure plate and the linear drive connecting seat are both provided with stud holes, the pressure plate and the linear drive connecting seat are connected through studs, and a sleeve is sleeved on a part of the studs between the pressure plate and the linear drive connecting seat and used for completing the spacing arrangement.
4. The variable tightening ram according to claim 1, wherein the adjustment mechanism is a transmission gear set, the transmission gear set includes a sun gear disposed between the pressure plate and the linear drive connecting seat and planetary gears corresponding to the rotation mounting ends of the pressing blocks, the sun gear is externally engaged with the planetary gears, and the sun gear drives the planetary gears to rotate synchronously by rotating the sun gear, so as to adjust the synchronous rotation of the pressing blocks.
5. The variable tightening indenter of claim 4, wherein a gear shaft mounting hole is formed in the middle of the pressure plate, the central gear is provided with a gear shaft in a matching manner, the gear shaft is arranged in the gear shaft mounting hole in a penetrating manner, and the rear end of the gear shaft penetrates through the gear shaft mounting hole and is connected with the central gear in a key manner;
the front end of the gear shaft is provided with a wrench groove used for being matched with an adjusting wrench to adjust the gear shaft to rotate.
6. The variable fastening ram of claim 5, wherein the rear end face of the gear shaft is rearwardly fitted with a gear shaft end cap, and the linear drive connecting socket is provided with a gear shaft end cap receiving groove at a position corresponding to the gear shaft.
7. The variable tightening indenter of claim 4, wherein the rotation mounting end of the indenter extends rearward to form an indenter rotation shaft, the pressure plate has an indenter rotation shaft mounting hole at a position corresponding to the indenter rotation shaft, and the indenter rotation shaft is rearwardly inserted into the indenter rotation shaft hole;
the rear end of the pressing block rotating shaft extends out of the pressure plate part and is connected with the corresponding planetary gear key.
8. The variable tightening ram according to claim 7, wherein the rear end face of the pressure block rotating shaft is rearwardly provided with a pressure block rotating shaft end cap, and the linear driving connecting seat is provided with a pressure block rotating shaft end cap accommodating groove at a position corresponding to each pressure block rotating shaft end cap.
9. A pem fuel cell stacking apparatus comprising a variable tightening ram according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347306.2A CN108598544B (en) | 2018-04-17 | 2018-04-17 | Variable fastening pressure head and proton exchange membrane fuel cell stacking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347306.2A CN108598544B (en) | 2018-04-17 | 2018-04-17 | Variable fastening pressure head and proton exchange membrane fuel cell stacking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108598544A CN108598544A (en) | 2018-09-28 |
| CN108598544B true CN108598544B (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810347306.2A Active CN108598544B (en) | 2018-04-17 | 2018-04-17 | Variable fastening pressure head and proton exchange membrane fuel cell stacking device |
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| CN (1) | CN108598544B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363470A (en) * | 2012-03-29 | 2013-10-23 | 海洋王照明科技股份有限公司 | Lamp lifting rod fastening device and lamp using same |
| CN104154094A (en) * | 2013-05-14 | 2014-11-19 | 鸿富锦精密工业（深圳）有限公司 | Fastening device |
| KR20150080802A (en) * | 2014-01-02 | 2015-07-10 | 두산중공업 주식회사 | Coupling structure of ssurface pressure device for fuel cell |
| CN105934294A (en) * | 2013-12-17 | 2016-09-07 | Lmt菲特工具技术有限责任两合公司 | Thread rolling head |
| CN107735895A (en) * | 2015-06-19 | 2018-02-23 | 百拉得动力系统公司 | Pressing device for fuel cell pack |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1437786B1 (en) * | 2002-10-10 | 2010-02-24 | Panasonic Corporation | Fuel cell and process for the production of same |
-
2018
- 2018-04-17 CN CN201810347306.2A patent/CN108598544B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363470A (en) * | 2012-03-29 | 2013-10-23 | 海洋王照明科技股份有限公司 | Lamp lifting rod fastening device and lamp using same |
| CN104154094A (en) * | 2013-05-14 | 2014-11-19 | 鸿富锦精密工业（深圳）有限公司 | Fastening device |
| CN105934294A (en) * | 2013-12-17 | 2016-09-07 | Lmt菲特工具技术有限责任两合公司 | Thread rolling head |
| KR20150080802A (en) * | 2014-01-02 | 2015-07-10 | 두산중공업 주식회사 | Coupling structure of ssurface pressure device for fuel cell |
| CN107735895A (en) * | 2015-06-19 | 2018-02-23 | 百拉得动力系统公司 | Pressing device for fuel cell pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108598544A (en) | 2018-09-28 |
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