阅读说明：本技术 一种燃料电池金属双极板电堆压装辅助结构 (Fuel cell metal bipolar plate galvanic pile press mounting auxiliary structure ) 是由 田港 姜天豪 毕飞飞 胡鹏 鲍恩泽 杜祥永 蓝树槐 于 2021-08-06 设计创作，主要内容包括：本申请提供一种燃料电池金属双极板电堆压装辅助结构,该辅助结构包括弹簧压板、弹簧、销钉、带弹簧杆底座和底板。本申请可以一定程度上解决燃料电池电堆装堆过程中出现的堆叠一致性的问题,改善燃料电池电堆堆叠过程中出现的双极板错位现象。(The application provides a fuel cell metal bipolar plate galvanic pile pressure equipment auxiliary structure, and this auxiliary structure includes spring clamp plate, spring, pin, takes spring beam base and bottom plate. The problem of the stack uniformity that the fuel cell pile stack in-process appears can be solved to a certain extent to this application, improves the bipolar plate dislocation phenomenon that the fuel cell pile stack in-process appears.)

1. A fuel cell metal bipolar plate galvanic pile press mounting auxiliary structure is characterized by comprising an upper pressing plate, an upper cover plate, a spring pressing plate, a spring, a pin, a base with a spring rod and a bottom plate;

the base with the spring rod is detachably connected to the bottom plate, and the spring is placed on the spring rod of the base with the spring rod;

the base with the spring rod comprises two vertical limiting plates which are oppositely arranged, the spring pressing plate is clamped between the two vertical limiting plates, and the spring rod of the base with the spring rod is positioned between the two vertical limiting plates; the vertical limiting plate is provided with a first pin hole, and the pin is detachably arranged on the first pin hole;

the spring pressing plate comprises a spring rod guide hole and a second pin hole; the spring rod guide hole is arranged corresponding to the spring rod, and when the spring rod is accommodated in the spring rod guide hole, the spring pressing plate is pressed on the spring; the second pin hole is arranged corresponding to the first pin hole, and the pin can simultaneously penetrate through the second pin hole and the first pin hole;

the upper cover plate is pressed on the spring pressing plate, and the upper pressing plate is pressed on the upper cover plate.

2. A press-fitting auxiliary structure of a fuel cell metal bipolar plate stack as claimed in claim 1,

the spring pressing plate is also provided with a first threaded rod guide post and a second threaded rod guide post which are positioned on the same vertical line, and the first threaded rod guide post and the second threaded rod guide post are arranged at intervals;

the base with the spring rod is provided with a threaded rod guide key through hole which is arranged corresponding to the first threaded rod guide post and the second threaded rod guide post.

3. A press-fitting auxiliary structure for a metal bipolar plate stack of a fuel cell as claimed in claim 2, wherein the length of the through hole of the threaded rod guide key is greater than the distance between the first threaded rod guide pillar and the second threaded rod guide pillar.

4. A press-fitting auxiliary structure for a metal bipolar plate stack of a fuel cell as claimed in claim 2, wherein each vertical limiting plate is provided with a through hole for a guide key of the threaded rod.

5. A press-fitting auxiliary structure of a fuel cell metal bipolar plate stack as claimed in claim 1,

two spring rods are arranged on the base with the spring rods;

two spring rod guide holes are formed in the spring pressing plate.

6. A press-fitting auxiliary structure of a fuel cell metal bipolar plate stack as claimed in claim 5,

the first pin hole is arranged between the two spring rods.

7. A press-fitting auxiliary structure for a metal bipolar plate stack of a fuel cell as claimed in claim 5, wherein the two spring bar guide holes of the spring pressing plate are threaded holes.

8. A press-fitting auxiliary structure for a fuel cell metal bipolar plate stack as claimed in claim 1, wherein said base with spring rods is detachably attached to said bottom plate by bolts.

9. A press-fitting auxiliary structure for a metal bipolar plate stack of a fuel cell as claimed in claim 8, wherein the base with spring rods is provided with two bolt through holes.

10. A press-fitting auxiliary structure for a metal bipolar plate stack of a fuel cell as claimed in claim 1, wherein the bottom plate is provided with eight bolt holes, all of which are threaded holes; the bottom plate is fixed with a fixed foundation through the bolt hole.

Technical Field

The application belongs to the field of fuel cell metal bipolar plates, and particularly relates to a fuel cell metal bipolar plate stack press-fitting auxiliary structure.

Background

At present, the press mounting of the fuel cell metal electrode plate galvanic pile mainly comprises the steps of stacking the metal electrode plates, limiting by using a fixed pull rod, and determining whether the assembly of the fuel cell galvanic pile is successful or not by using the clamping force in each direction, wherein a mature assembly means does not exist. The whole stacking process consumes time and labor, and the phenomena of inconsistent stacking of the metal bipolar plates and staggered stacking of the metal bipolar plates can occur.

Disclosure of Invention

The application aims at the problems and provides a fuel cell metal bipolar plate galvanic pile press-fitting auxiliary structure.

The application provides a fuel cell metal bipolar plate galvanic pile press mounting auxiliary structure, which comprises an upper pressure plate, an upper cover plate, a spring pressure plate, a spring, a pin, a base with a spring rod and a bottom plate; the base with the spring rod is detachably connected to the bottom plate, and the spring is placed on the spring rod of the base with the spring rod; the base with the spring rod comprises two vertical limiting plates which are oppositely arranged, the spring pressing plate is clamped between the two vertical limiting plates, and the spring rod of the base with the spring rod is positioned between the two vertical limiting plates; the vertical limiting plate is provided with a first pin hole, and the pin is detachably arranged on the first pin hole; the spring pressing plate comprises a spring rod guide hole and a second pin hole; the spring rod guide hole is arranged corresponding to the spring rod, and when the spring rod is accommodated in the spring rod guide hole, the spring pressing plate is pressed on the spring; the second pin hole is arranged corresponding to the first pin hole, and the pin can simultaneously penetrate through the second pin hole and the first pin hole; the upper cover plate is pressed on the spring pressing plate, and the upper pressing plate is pressed on the upper cover plate.

Furthermore, a first threaded rod guide post and a second threaded rod guide post which are positioned on the same vertical line are also arranged on the spring pressing plate, and the first threaded rod guide post and the second threaded rod guide post are arranged at intervals; the base with the spring rod is provided with a threaded rod guide key through hole which is arranged corresponding to the first threaded rod guide post and the second threaded rod guide post.

Further, the length of the threaded rod guide key through hole is larger than the spacing distance between the first threaded rod guide column and the second threaded rod guide column.

Furthermore, each vertical limiting plate is provided with one threaded rod guide key through hole.

Furthermore, two spring rods are arranged on the base with the spring rods; two spring rod guide holes are formed in the spring pressing plate.

Further, the first pin hole is arranged between the two spring rods.

Furthermore, two spring rod guide holes of the spring pressing plate are threaded holes.

Further, the base with the spring rod is detachably connected to the bottom plate through a bolt.

Further, the base with the spring rod is provided with two bolt through holes.

Furthermore, the bottom plate is provided with eight bolt holes which are all threaded holes; the bottom plate is fixed with a fixed foundation through the bolt hole.

This application is in fuel cell metal bipolar plate galvanic pile dress heap assembling process: the bottom plate is used for providing bolt positioning; the bolt is used for fastening the connecting belt spring rod base and the bottom plate; the base with the spring rod is tightly abutted and positioned on the lower end plate of the fuel cell metal bipolar plate stack; the side wall of the base with the spring rod only depends on the reactor core of the metal bipolar plate galvanic pile, so that the dislocation phenomenon of the metal bipolar plate in the stacking process is prevented; a compression spring is arranged in the base with the spring rod; the spring pressing plate is pressed on the spring; and placing a fuel cell metal bipolar plate stack to be installed, and pressing an upper end plate, an upper cover plate and an upper pressing plate.

The application is in the fuel cell metal bipolar plate galvanic pile stack compression process: the upper cover plate is supported by six sets of the auxiliary structures, and the spring force ensures that the stress of the whole metal bipolar plate galvanic pile is uniformly compressed downwards. Wherein the spring pressure plate compresses the spring; a base support spring with a spring rod; the bottom plate supports the belt spring base. After the compression is finished, the second threaded rod guide pillar is pulled to continue to compress the spring downwards, the pin hole of the spring pressing plate is aligned with the pin hole of the base with the spring rod, the positioning pin is inserted, then the bolt is disassembled, and the auxiliary structure is withdrawn.

Compared with the prior art, the beneficial effect of this application: in the process of assembling the galvanic pile, the four spring pressing plates and the four compression springs with the spring rod bases can achieve the effect of synchronous assembly of the whole surface of the metal bipolar plate in the whole press-fitting process, and the phenomenon of assembly dislocation is reduced or completely avoided; after the electric pile is assembled, the threaded rod guide post is used for continuously compressing the spring downwards until the spring pressing plate is aligned with the pin hole with the spring rod base, the pin is used for fixing the spring pressing plate and the pin hole with the spring rod base, the spring is further compressed to a limit state (including but not limited), at the moment, the spring pressing plate is separated from the upper cover plate, the fastening bolt with the spring rod base and the bottom plate is loosened, the electric pile assembly auxiliary structure can be withdrawn, and the assembly of the fuel cell metal bipolar plate electric pile is completed.

Through the stack press-fitting auxiliary structure of the metal bipolar plate of the fuel cell, the dislocation problem of the metal bipolar plate in the assembly process can be reduced or avoided, and the assembly consistency problem of the metal bipolar plate in the stack assembly process can be improved.

Drawings

FIG. 1 is a schematic structural view of a press-fitting auxiliary structure of a fuel cell metal bipolar plate stack in the present application;

FIG. 2 is a schematic view of the construction of the base with spring rods of the present application;

fig. 3 is a schematic structural diagram of a spring pressing plate in the present application.

The reference numbers are as follows:

1, an upper pressure plate is arranged on the upper surface of the frame,

2, an upper cover plate is arranged on the upper cover plate,

3, a spring pressure plate is arranged on the upper surface of the shell,

4 a base with a spring rod is arranged,

5, the bolts are arranged on the base plate,

6 a first pin hole is formed in the first pin hole,

7 the spring is arranged in the groove, and the spring is arranged in the groove,

the pin (8) is arranged on the base,

9 a first threaded rod guide post which is provided with a screw rod,

10 a second threaded rod guide post which is provided with a screw thread,

11 a bottom plate, wherein the bottom plate is provided with a plurality of grooves,

12 of the spring rods, the spring rods are arranged in a circular shape,

13 a through hole of a guide key of the threaded rod,

14 bolt holes are arranged on the inner wall of the bolt hole,

15 a second pin hole is formed in the second pin hole,

16 of the spring rod guide holes are arranged on the upper surface of the spring rod,

41 vertical limiting plate.

Detailed Description

Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings so that those skilled in the art can more clearly understand how to practice the present application. While the present application has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the application.

Referring to fig. 1, the application provides a fuel cell metal bipolar plate stack press-fitting auxiliary structure, which comprises an upper pressing plate 1, an upper cover plate 2, a spring pressing plate 3, a base with a spring rod 4, a bolt 5, a first pin hole 6, a spring 7, a pin 8, a first threaded rod guide pillar 9, a second threaded rod guide pillar 10 and a bottom plate 11. The base plate 11 and the base with the spring rod 4 are fastened through bolts 5, and the base with the spring rod 4 is detachably connected to the base plate 11. The spring 7 is placed on the spring guide post 41 of the base 4 with the spring rod, the spring pressing plate 3 is aligned with the spring guide post from top to bottom and inserted into the base 4 with the spring rod, and the first threaded rod guide post 9 and the second threaded rod guide post 10 penetrate through the base 4 with the spring rod and are screwed into the spring pressing plate 3 through threaded connection. The upper cover plate 2 presses on the spring pressing plate 3, and the upper pressing plate 1 presses on the upper cover plate 2.

The upper pressing plate 1 is used for loading the pressing force of the fuel cell metal bipolar plate stack.

The upper cover plate 2 is used for fastening the metal bipolar plate core of the fuel cell metal bipolar plate stack.

The base 4 with the spring rod comprises two vertical limiting plates 41 which are oppositely arranged, the spring pressing plate 3 is clamped between the two vertical limiting plates 41, and the spring rod 12 of the base 4 with the spring rod is positioned between the two vertical limiting plates 41; be equipped with first cotter hole 6 on the vertical limiting plate 41, pin 8 is detachable installs on first cotter hole 6.

The spring pressure plate 3 is provided with a second pin hole 15 and a spring rod guide hole 16, and is provided with a threaded hole for mounting the first threaded rod guide post 9 and a threaded hole for mounting the second threaded rod guide post 10. The spring rod guide hole 16 is arranged corresponding to the spring rod 12, and when the spring rod 12 is accommodated in the spring rod guide hole 16, the spring pressing plate 3 is used for compressing the spring 7. The second pin hole 15 is used for the spring pressing plate 3 and the base 4 with the spring rod after the fixing spring 7 is compressed to the limit state when the whole fuel cell metal bipolar plate stack press-fitting auxiliary structure exits. The spring bar guide holes 16 are used for aligning the spring bars 12 with the spring bar base 4 and have a guiding function. The first threaded rod guide post 9 and the second threaded rod guide post 10 are on the same vertical line and have a guide effect and compression supporting points when the whole fuel cell metal bipolar plate galvanic pile press-fitting auxiliary structure exits. The first threaded rod guide post 9 and the second threaded rod guide post 10 are arranged at intervals; the base 4 with the spring rod is provided with a threaded rod guide key through hole 13 which is arranged corresponding to the first threaded rod guide post 9 and the second threaded rod guide post 10.

Thus, the base 4 with spring bar is provided with a first pin hole 6, a spring bar 12, a threaded guide through hole 13 and a fastening bolt through hole 14. The base 4 with the spring rod is connected with the bottom plate 11 by a bolt of a bolt 5 and is used for supporting the spring 7; the bolt 5 is inserted into the fastening bolt through hole 14. The spring rod 12 and the threaded guide through hole 13 are used for guiding the spring pressing plate 3, and dislocation generated when the spring pressing plate 3 and the base 4 with the spring rod move relatively is prevented. Wherein the first pin hole 6 is also used for fixing the spring holder plate 3 after compressing the spring 7.

In the fuel cell metal bipolar plate electric stack assembling process: the bottom plate 11 is used for providing bolt positioning; the bolt 5 is used for fastening the connecting belt spring rod base 4 and the bottom plate 11; the base 4 with the spring rods is closely positioned on the lower end plate of the fuel cell metal bipolar plate stack; the base 4 with the spring rod is tightly close to the frame of the metal bipolar plate of the fuel cell, and a compression spring 7 is arranged in the base 4 with the spring rod; the spring pressing plate 3 is pressed on the spring 7; the metal bipolar plate stack of the fuel cell to be installed is placed, and an upper end plate, an upper cover plate 2 and an upper pressure plate 1 are pressed and installed.

The application is in the fuel cell metal bipolar plate galvanic pile stack compression process: the upper cover plate 2 is supported by six sets of auxiliary structures, and the spring force ensures that the stress of the whole metal bipolar plate galvanic pile is uniformly compressed downwards. Wherein the spring pressing plate 3 compresses the spring 7; the base 5 with the spring rod supports the spring 7; the base plate 11 supports the spring mount 5. After the compression is finished, the second threaded rod guide post 10 is pulled downwards to continue compressing the spring 7, the second pin hole 15 of the spring pressing plate 3 is aligned with the first pin hole 6 with the spring rod base, the positioning pin 8 is inserted, then the bolt 5 is disassembled, and the auxiliary structure is withdrawn.

Compared with the prior art, the beneficial effect of this application: in the process of assembling the galvanic pile, the four spring pressing plates and the four compression springs with the spring rod bases can achieve the effect of synchronous assembly of the whole surface of the metal bipolar plate in the whole press-fitting process, and the phenomenon of assembly dislocation is reduced or completely avoided; after the electric pile is assembled, the threaded rod guide post is used for continuously compressing the spring downwards until the spring pressing plate is aligned with the pin hole with the spring rod base, the pin is used for fixing the spring pressing plate and the pin hole with the spring rod base, the spring is further compressed to a limit state (including but not limited), at the moment, the spring pressing plate is separated from the upper cover plate, the fastening bolt with the spring rod base and the bottom plate is loosened, the electric pile assembly auxiliary structure can be withdrawn, and the assembly of the fuel cell metal bipolar plate electric pile is completed.

It should be noted that many variations and modifications of the embodiments described herein are possible and are not limited to the specific examples of the embodiments described above. The above-described embodiments are merely illustrative of the present application and are not intended to be limiting of the present application. The pin, bolt, threaded rod guide post that this application used all are not limited to this kind of fixed or fastening and direction mode. Other detachable fixing modes can achieve the functions of fastening or fixing and guiding.

In summary, the scope of protection of the present application shall include those alterations or substitutions and modifications that are obvious to those of ordinary skill in the art.