CN218482279U - Fuel cell stack maintenance device - Google Patents
Fuel cell stack maintenance device Download PDFInfo
- Publication number
- CN218482279U CN218482279U CN202222271844.2U CN202222271844U CN218482279U CN 218482279 U CN218482279 U CN 218482279U CN 202222271844 U CN202222271844 U CN 202222271844U CN 218482279 U CN218482279 U CN 218482279U
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- fuel cell
- cell stack
- plate
- plate body
- insert
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- 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
Abstract
The utility model discloses a fuel cell stack maintenance device, which comprises a handle assembly, wherein the handle assembly comprises a first plate body, the first plate body is used for being provided with a first insertion piece towards one side of the fuel cell stack, the first insertion piece is used for being inserted into a first connecting hole of the fuel cell stack, and the first connecting hole is vertically arranged along the height direction of the fuel cell stack and penetrates through the fuel cell stack; the outer side face of the first inserting piece is used for being matched with the inner side face of the first through hole in an attaching mode; a shim plate for lateral insertion between a damaged portion and an undamaged portion of the fuel cell stack to separate the damaged portion from the undamaged portion. Through the utility model discloses realize effectively improving the maintenance efficiency of fuel cell pile, guarantee simultaneously that each other does not misplace between each part of the fuel cell pile after the maintenance finishes.
Description
Technical Field
The utility model relates to a fuel cell galvanic pile technical field, in particular to fuel cell galvanic pile maintenance device.
Background
The existing fuel cell stack is mainly composed of a front end plate, a current collecting plate, a bipolar plate, a membrane electrode, a rear end plate and the like which are stacked in sequence. When a bipolar plate or a membrane electrode is damaged, most fuel cell manufacturers choose to sequentially disassemble the front end plate, the current collecting plate, the bipolar plate or the membrane electrode and other components positioned above the bipolar plate or the membrane electrode, and then replace the damaged bipolar plate or the membrane electrode. After the replacement, the disassembled front end plate, the current collecting plate, the bipolar plate or the membrane electrode and other components are installed with the front end plate, the current collecting plate, the bipolar plate or the membrane electrode again, and the maintenance mode is complicated and time-consuming. Therefore, a maintenance device for a fuel cell stack is needed to effectively improve the maintenance efficiency of the fuel cell stack.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fuel cell pile maintenance device aims at realizing effectively improving the maintenance efficiency of fuel cell pile.
In order to achieve the above object, the present invention provides a maintenance device for fuel cell stack, including:
the handle assembly comprises a first plate body, wherein a first insert is arranged on one side, facing a fuel cell stack, of the first plate body and is used for being inserted into a first communication hole of the fuel cell stack, and the first communication hole is vertically formed in the height direction of the fuel cell stack and penetrates through the fuel cell stack; the outer side face of the first inserting piece is used for being matched with the inner side face of the first through hole in an attaching mode;
the backing plate is used for transversely inserting the backing plate between the damaged part and the undamaged part of the fuel cell stack to separate the damaged part from the undamaged part, wherein the undamaged part is separately arranged between the first plate body and the backing plate, and the handle assembly is matched with the backing plate to transfer the undamaged part so as to expose the damaged part.
Optionally, the backing plate is provided with a first notch portion, and the first notch portion is provided with an open end, the first notch portion is used for accommodating the first insert.
Optionally, a handle member is disposed on a side of the first panel body facing away from the first insert.
Optionally, the first plate further comprises a limiting pin, one end, far away from the first plate, of the first inserting piece is provided with a limiting hole, and the limiting hole is used for the limiting pin to be inserted into.
Optionally, two first inserts are included, and are respectively located on two opposite sides of the first plate body.
Optionally, one end of the first insert, which is close to the first plate body, is provided with a first threaded hole, the first plate body is provided with a second notch portion, a side portion of the second notch portion is provided with a second threaded hole, and the second notch portion is used for allowing the first insert to be inserted and enabling the first threaded hole and the second threaded hole to be coaxially aligned; the fuel cell stack maintenance device further comprises a fixing bolt, and the fixing bolt is used for sequentially penetrating through the second threaded hole and the first threaded hole so as to fixedly connect the first inserting piece with the first plate body.
Optionally, a tray assembly is included, the tray assembly including a second plate body, the second plate body being configured to be provided with a second insert toward one side of the first plate body, the second insert being configured to be inserted into a second communication hole of the undamaged portion, wherein the second communication hole is vertically arranged in a height direction of the fuel cell stack and penetrates through the fuel cell stack; and the outer side surface of the second insert is in fit with the inner side surface of the second communication hole.
Optionally, a third notch portion is provided on the second plate body, and the third notch portion is used for accommodating the first insert.
Optionally, one end of the second insert piece facing the first plate body is provided in a frustum shape, and a cross-sectional area of the second insert piece gradually decreases in a direction facing the first plate body.
Alternatively, a plurality of the second inserts may be included, the plurality of the second inserts corresponding to the second communication holes of the fuel cell stack, respectively.
Compared with the prior art, the beneficial effects of the utility model are that:
it is contemplated that the fuel cell stack is provided with first communication holes for introducing a working fluid (e.g., hydrogen, oxygen, or coolant) from the outside into the working flow channels of each bipolar plate through one of the first communication holes so that the working fluid can contact the membrane electrode to cause an electrochemical reaction, and then be discharged through the other first communication hole.
The utility model discloses a handle subassembly and backing plate mutually support, utilize the first plug-in member in the handle subassembly to insert to first through-hole earlier, then transversely insert the backing plate to the fuel cell pile in between impaired part and the undamaged part, specific backing plate inserts to the top of impaired part to in the fuel cell pile impaired part and the undamaged part alternate segregation, and make the separation of undamaged part set up between first plate body and backing plate; and finally, transferring the undamaged part between the first plate body and the base plate, wherein the first plate body and the base plate can be moved by two hands of a specific maintainer respectively and simultaneously to be transferred so as to expose the damaged part, and then the maintainer can replace the damaged part. After the replacement is finished, the maintenance personnel puts the undamaged part back to the fuel cell stack through the handle assembly and the backing plate. The whole maintenance process is simple and quick, and the maintenance efficiency of the fuel cell stack is effectively improved.
Meanwhile, the outer surface of the first insertion piece is fit with the inner side surface of the first communication hole. When the undamaged part is placed back to the fuel cell stack again, the first insert is inserted into the first communication hole for the second time, and the position of the first insert inserted into the first communication hole for the first time is basically kept unchanged due to the fit of the outer side surface of the first insert and the inner side surface of the first communication hole, so that the relocated undamaged part and the original fuel cell stack can be aligned with each other, and the parts of the fuel cell stack after the repair is finished are not staggered with each other.
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 these drawings without creative efforts.
FIG. 1 is a schematic diagram of a fuel cell stack according to the prior art;
fig. 2 is a schematic structural view of one of the handle assembly and the backing plate in an embodiment of the maintenance apparatus for a fuel cell stack according to the present invention;
fig. 3 is a second schematic structural view of a handle assembly and a backing plate in an embodiment of the maintenance apparatus for a fuel cell stack according to the present invention;
fig. 4 is a schematic structural diagram of an embodiment of a fuel cell stack repairing apparatus according to the present invention, in which a damaged portion is separated from an undamaged portion;
fig. 5 is a schematic structural view of a tray assembly in an embodiment of the maintenance apparatus for a fuel cell stack according to the present invention;
fig. 6 is a schematic structural view illustrating a state where an undamaged portion is placed on a tray assembly according to an embodiment of the fuel cell stack repairing apparatus of the present invention.
The names of the components identified in the figures are as follows:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
2 | |
| 201 | |
202 | |
| 3 | |
301 | Limiting |
| 4 | |
401 | |
| 5 | Limit pin | 6 | Fixing bolt |
| 7 | |
8 | |
| 801 | |
9 | |
| 10 | |
1001 | Damaged |
| 1002 | Undamaged |
1003 | First through |
| 1004 | Second communication hole |
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, only some embodiments, not all embodiments, of the present invention are described. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment discloses a maintenance device for a fuel cell stack, and referring to fig. 1-6, a handle assembly 1, the handle assembly 1 includes a first plate body 2, the first plate body 2 is provided with a first insert 3 facing one side of the fuel cell stack 10, the first insert 3 is inserted into a first through hole 1003 of the fuel cell stack 10, wherein the first through hole 1003 is vertically arranged along the height direction of the fuel cell stack 10 and penetrates through the fuel cell stack 10; the outer side surface of the first insert 3 is fit with the inner side surface of the first through hole 1003; a shim plate 4 for being laterally inserted between a damaged portion 1001 and an undamaged portion 1002 of the fuel cell stack 10 to separate the damaged portion 1001 from the undamaged portion 1002; the undamaged portion 1002 is separately disposed between the first board 2 and the backing plate 4, and the undamaged portion 1002 is transferred by the handle assembly 1 cooperating with the backing plate 4, so that the damaged portion 1001 is exposed.
It is considered that the fuel cell stack 10 is provided with a first communicating hole 1003 to introduce a working fluid (e.g., hydrogen, oxygen or coolant) from the outside into the working flow channel of each bipolar plate through one of the first communicating holes 1003, so that the working fluid can contact the membrane electrode to perform an electrochemical reaction, and then be discharged through the second first communicating hole 1003.
The utility model discloses a handle subassembly 1 and backing plate 4 mutually support, utilize first insert 3 in the handle subassembly 1 to insert respectively to first through-hole 1003 earlier, transversely insert backing plate 4 in fuel cell stack 10 between impaired part 1001 and undamaged part 1002 afterwards, specific backing plate 4 inserts to the top of impaired part 1001 to with in the fuel cell stack 10 impaired part 1001 with undamaged part 1002 each other separate, and make undamaged part 1002 separate and set up between first plate body 2 and backing plate 4; finally, the undamaged portion 1002 between the first board body 2 and the backing plate 4 is transferred, and specifically, the first board body 2 and the backing plate 4 can be simultaneously moved by two hands of a maintenance worker to be transferred, so that the damaged portion 1001 is exposed, and then the maintenance worker can replace the damaged portion 1001. After the replacement, the maintenance personnel replace the undamaged portion 1002 back into the fuel cell stack 10 through the handle assembly 1 and the backing plate 4. The whole maintenance process is simple and quick, and the maintenance efficiency of the fuel cell stack 10 is effectively improved.
Meanwhile, the outer surface of the first insert 3 fits snugly against the inner side surface of the first communication hole 1003. When the undamaged portion 1002 is placed back to the fuel cell stack 10 again, and the first insert 3 is inserted into the first through hole 1003 for the second time, the position where the first insert 3 is inserted into the first through hole 1003 for the first time is basically kept unchanged due to the fit between the outer side surface of the first insert 3 and the inner side surface of the first through hole 1003, so that the replaced undamaged portion 1002 and the original fuel cell stack 10 can be aligned with each other, and therefore, the components of the fuel cell stack 10 after the maintenance is finished are not staggered with each other.
As a preferable aspect of the above embodiment, the shim plate 4 is provided with a first notch portion 401, and the first notch portion 401 is provided with an open end, the first notch portion 401 is used for accommodating the first insert 3, and the shim plate 4 can be laterally inserted into the first insert 3 through the open end of the first notch portion 401. With this arrangement, the first notch 401 and the first insert 3 are engaged with each other to guide and position the shim plate 4 during the lateral insertion of the shim plate 4 between the damaged portion 1001 and the undamaged portion 1002 of the fuel cell stack 10.
As a preferable solution of the above embodiment, a handle member 201 is provided on a side of the first board 2 facing away from the first insert 3. So set up, the maintenance personal of being convenient for removes first plate body 2 through handle spare 201.
As a preferable scheme of the above embodiment, the first plate further comprises a limiting pin 5, one end of the first insert 3, which is far away from the first plate, is provided with a limiting hole 301, and the limiting hole 301 is used for the insertion of the limiting pin 5. With this arrangement, in order to ensure that the backing plate 4 does not fall halfway in the process of transferring the undamaged portion 1002, the undamaged portion 1002 can be lifted a little to expose the limiting hole 301, and then the limiting pin 5 is inserted into the limiting hole 301, and at this time, the backing plate 4 descends and is supported on the limiting pin 5 under the action of its own gravity, thereby helping to prevent the backing plate 4 from falling halfway in the process of moving the undamaged portion 1002 between the first plate body 2 and the backing plate 4.
Further, two first insertion pieces 3 are included, and the two first insertion pieces 3 are respectively located on two opposite sides of the first plate body 2. With this arrangement, considering that the first communication holes 1003 of a general fuel cell stack are provided in two, and the two first communication holes 1003 are used for the introduction and the discharge of the working fluid, respectively, two first inserts 3 are correspondingly provided to be inserted into the two first communication holes 1003, and since the undamaged portion 1002 is restrained by the two first inserts 3 at the same time, it is further ensured that the undamaged portion 1002 is not displaced during the transfer.
Further, one end of the first insert 3 close to the first plate body 2 is provided with a first threaded hole (not shown in the drawings), the first plate body 2 is provided with a second notch portion 202, a side portion of the second notch portion 202 is provided with a second threaded hole (not shown in the drawings), and the second notch portion 202 is used for inserting the first insert 3 and enabling the first threaded hole and the second threaded hole to be coaxially aligned; still include fixing bolt 6, fixing bolt 6 is used for passing first screw hole and second screw hole in proper order to with first plug-in components 3 and first plate body 2 fixed connection. With this arrangement, in consideration of the possible difference in the shape and size of the first communication hole 1003 and the second communication hole 1004 in various types of fuel cell stacks 10, in order to make the present application more widely applicable to various types of fuel cell stacks 10, the first insert 3 and the first plate body 2 may be designed to be detachable, specifically, fixed to the first insert 3 and the first plate body 2 by the fixing bolt 6. When facing to the fuel cell pile 10 of different models, only need change corresponding first insert 3 can, effectively improve the suitability of this application.
As a preferable aspect of the above embodiment, a tray assembly 7 is included, the tray assembly 7 including a second plate body 8, the second plate body 8 being configured to be provided with a second insert 9 toward a side of the first plate body 2, the second insert 9 being configured to be inserted into a second communication hole 1004 of the undamaged portion 1002, wherein the second communication hole 1004 is vertically provided in a height direction of the fuel cell stack 10 and penetrates through the fuel cell stack 10; the outer surface of the second insert 9 is fitted in close contact with the inner surface of the second communication hole 1004. Thus, in addition to the two first communication holes 1003 provided in the fuel cell stack 10 for the introduction and discharge of the working fluid, at least two second communication holes 1004 for the introduction and discharge of another working fluid are provided. In consideration of the need for a space for the transferred undamaged portion 1002, a mating tray assembly 7 is provided to support the undamaged portion 1002 above the second panel 8. Meanwhile, as the outer side surface of the second insert 9 is in fit with the inner side surface of the second communication hole 1004, the second insert 9 on the tray assembly 7 is inserted into the second communication hole 1004 of the undamaged portion 1002 to position the second insert, so that the situation that the undamaged portion 1002 is displaced due to external force in the process of replacing the damaged portion 1001 is avoided. In operation, when the undamaged part 1002 is transferred to the upper part of the tray component 7, the backing plate 4 is horizontally and transversely drawn out, and the undamaged part 1002 is supported by the limiting pin 5; and then slowly lowered onto the second plate 8 of the tray assembly 7, during which it is inserted into the second communication hole 1004 by means of the second insert 9.
Further, a third notch 801 is provided in second plate body 8, and third notch 801 is configured to accommodate first insert 3. With this arrangement, considering that when the undamaged portion 1002 is placed on the second board 8, the first insert 3 protrudes below the undamaged portion 1002, the third notch 801 for accommodating the first insert 3 is provided on the second board 8 to ensure a smooth placement of the handle assembly 1.
Further, one end of the second insert 9 facing the first plate body 2 is in a frustum shape, and the cross-sectional area of the second insert 9 is gradually reduced along the direction facing the first plate body 2. With this arrangement, the second insert 9 can be effectively ensured to smoothly reach the second communication hole 1004 of the undamaged portion 1002 by being guided by the frustum-shaped arrangement.
Further, a plurality of second inserts 9 are included, and the plurality of second inserts 9 respectively correspond to the second communication holes 1004 of the fuel cell stack 10. With this arrangement, considering that the second communication holes 1004 of the fuel cell stack 10 may be provided with two or more, the same number of second inserts 9 are correspondingly provided to ensure that each second communication hole 1004 of the undamaged portion 1002 has the second insert 9 inserted therein, and further ensure that misalignment of the undamaged portion 1002 due to external force during replacement of the damaged portion 1001 is avoided.
It should be noted that other contents of the fuel cell stack maintenance device disclosed in the present invention are prior art and are not described herein again.
In addition, if directional indications (such as upper, lower, left, right, front, and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.
Furthermore, it should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicit to 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, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Above only be the utility model discloses an optional embodiment, and not consequently the restriction the utility model discloses a patent range all is in the utility model discloses direct/indirect application all is included in other relevant technical field the utility model discloses a within range is protected to the patent.
Claims (10)
1. A fuel cell stack servicing device, comprising:
the lifting handle assembly comprises a first plate body, a first insertion piece is arranged on one side, facing the fuel cell stack, of the first plate body, the first insertion piece is used for being inserted into a first communication hole of the fuel cell stack, and the first communication hole is vertically arranged along the height direction of the fuel cell stack and penetrates through the fuel cell stack; the outer side face of the first inserting piece is used for being matched with the inner side face of the first through hole in an attaching mode;
a shim plate for lateral insertion between a damaged portion and an undamaged portion of the fuel cell stack to separate the damaged portion from the undamaged portion, wherein the undamaged portion is separately disposed between the first plate body and the shim plate.
2. The fuel cell stack servicing device according to claim 1, characterized in that: the backing plate is equipped with first breach portion, just first breach portion is equipped with the open end, first breach portion is used for holding first plug-in components.
3. The fuel cell stack servicing device according to claim 1, characterized in that: and a handle piece is arranged on one side of the first plate body, which faces away from the first insertion piece.
4. The fuel cell stack servicing device according to claim 1, characterized in that: the first plate is provided with a first plate, the first plate is provided with a first insertion piece, the first plate is provided with a first plate, the first plate is provided with a second plate, and the second plate is provided with a second plate.
5. The fuel cell stack servicing device according to claim 1, characterized in that: the first plate body comprises two first insertion pieces, and the two first insertion pieces are respectively positioned on two opposite sides of the first plate body.
6. The fuel cell stack servicing device according to claim 1, characterized in that: a first threaded hole is formed in one end, close to the first plate body, of the first insert, a second notch portion is formed in the first plate body, a second threaded hole is formed in the side portion of the second notch portion, the second notch portion is used for allowing the first insert to be inserted, and the first threaded hole and the second threaded hole are coaxially aligned; the fuel cell stack maintenance device further comprises a fixing bolt, and the fixing bolt is used for sequentially penetrating the second threaded hole and the first threaded hole so as to fixedly connect the first inserting piece with the first plate body.
7. The fuel cell stack servicing device according to claim 1, characterized in that: the fuel cell stack comprises a tray assembly, wherein the tray assembly comprises a second plate body, a second insert is arranged on one side, facing the first plate body, of the second plate body, and the second insert is used for being inserted into a second communication hole of the undamaged part, wherein the second communication hole is vertically arranged in the height direction of the fuel cell stack and penetrates through the fuel cell stack; and the outer side surface of the second insert is in fit with the inner side surface of the second communication hole.
8. The fuel cell stack servicing device according to claim 7, characterized in that: and a third notch part is arranged on the second plate body and used for accommodating the first inserting piece.
9. The fuel cell stack servicing device according to claim 7, characterized in that: one end, facing the first plate body, of the second insertion piece is arranged in a frustum shape, and the section area of the second insertion piece is gradually reduced along the direction facing the first plate body.
10. The fuel cell stack servicing device according to claim 9, characterized in that: the plurality of second inserts are respectively corresponding to the second communication holes of the fuel cell stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222271844.2U CN218482279U (en) | 2022-08-26 | 2022-08-26 | Fuel cell stack maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222271844.2U CN218482279U (en) | 2022-08-26 | 2022-08-26 | Fuel cell stack maintenance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218482279U true CN218482279U (en) | 2023-02-14 |
Family
ID=85164995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222271844.2U Active CN218482279U (en) | 2022-08-26 | 2022-08-26 | Fuel cell stack maintenance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218482279U (en) |
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2022
- 2022-08-26 CN CN202222271844.2U patent/CN218482279U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |