阅读说明：本技术 一种氢燃料电池堆组装装置 (Hydrogen fuel cell stack assembly device ) 是由 张泽远 郝义国 于 2019-10-29 设计创作，主要内容包括：本发明提供一种氢燃料电池堆组装装置，包括电堆组装平台、气密性测试仪和角度测试仪，电堆组装平台包括支撑板、支架和承压板，支架横向截面为梯形且其下底固定安装在支撑板的下表面，承压板与支撑板的一端垂直连接，气密性测试仪设置在电堆组装平台周围，并通过管路连接位于支撑板上的电池堆，角度测试仪设置在支撑板上。本发明的有益效果：本发明通过在电堆组装平台下方设置支架，使得操作人员可根据组装需要快速调整电堆组装平台的放置方式，以解决电池堆组装过程中其他电堆组件对膜电极存在竖向作用力的问题，对膜电极的压缩量进行有效控制，从而保证电池堆的性能和使用寿命。(The invention provides a hydrogen fuel cell stack assembling device which comprises a stack assembling platform, an air tightness tester and an angle tester, wherein the stack assembling platform comprises a supporting plate, a support and a bearing plate, the transverse section of the support is trapezoidal, the lower bottom of the support is fixedly arranged on the lower surface of the supporting plate, the bearing plate is vertically connected with one end of the supporting plate, the air tightness tester is arranged around the stack assembling platform and is connected with a cell stack on the supporting plate through a pipeline, and the angle tester is arranged on the supporting plate. The invention has the beneficial effects that: according to the invention, the support is arranged below the stack assembly platform, so that an operator can quickly adjust the placement mode of the stack assembly platform according to the assembly requirement, the problem that other stack assemblies have vertical acting force on the membrane electrode in the process of assembling the cell stack is solved, the compression amount of the membrane electrode is effectively controlled, and the performance and the service life of the cell stack are ensured.)

1. A hydrogen fuel cell stack assembly apparatus, characterized by: the device comprises a galvanic pile assembly platform, an air tightness tester and an angle tester, wherein the galvanic pile assembly platform comprises a supporting plate, a support and a bearing plate, the transverse cross section of the support is trapezoidal, the lower bottom of the support is fixedly arranged on the lower surface of the supporting plate, the bearing plate is vertically connected with one end of the supporting plate, the air tightness tester is arranged around the galvanic pile assembly platform and is connected with a cell pile positioned on the supporting plate through a pipeline, the angle tester is arranged on the supporting plate, the support is used for rapidly overturning the galvanic pile assembly platform, the bearing plate is used for supporting the cell pile, the air tightness tester is used for detecting the air tightness of the cell pile, and the angle tester is used for detecting the inclination angle of the supporting plate; the cell stack can be arranged vertically or obliquely or horizontally: the bearing plate supports the ground, so that the cell stack is vertically arranged; one waist of the bracket is supported on the ground, so that the cell stack is obliquely arranged; the upper bottom of the support is supported on the ground, so that the cell stack is horizontally arranged.

2. A hydrogen fuel cell stack assembly according to claim 1, wherein: and the gas tightness tester is provided with a hydrogen inlet interface and a hydrogen outlet interface, and the hydrogen inlet interface and the hydrogen outlet interface are respectively butted with a hydrogen inlet and a hydrogen outlet of the cell stack through metal hoses.

3. A hydrogen fuel cell stack assembly according to claim 1, wherein: the air tightness tester is provided with an air inlet, an air outlet, a cooling liquid inlet and a cooling liquid outlet, wherein the air inlet is connected with the air outlet, the cooling liquid inlet is connected with the cooling liquid outlet, and the cooling liquid outlet is connected with the air inlet, the air outlet, the cooling liquid inlet and the cooling liquid outlet of the cell stack through silica gel hoses.

4. A hydrogen fuel cell stack assembly according to claim 1, wherein: and the electronic display screen is arranged on the air tightness tester and is used for displaying the test data of the air tightness tester.

5. A hydrogen fuel cell stack assembly according to claim 1, wherein: and a hand-held tension rod is arranged on the support and used for manually adjusting the placing mode of the pile assembling platform.

6. A hydrogen fuel cell stack assembly according to claim 1, wherein: the bearing plate is a circular thin plate, and the diameter of the bearing plate is smaller than the length of the diagonal line of the single battery piece in the battery stack.

Technical Field

The invention relates to the technical field of cell stacks, in particular to a hydrogen fuel cell stack assembly device.

Background

A fuel cell is a chemical device that directly converts chemical energy of fuel into electrical energy, and is also called an electrochemical generator. It is a fourth power generation technology following hydroelectric power generation, thermal power generation and atomic power generation. The fuel cell converts the Gibbs free energy in the chemical energy of the fuel into electric energy through electrochemical reaction, and is not limited by the Carnot cycle effect, so the efficiency is high; in addition, fuel cells use fuel and oxygen as raw materials; meanwhile, no mechanical transmission part is arranged, so that no noise pollution is caused, and the discharged harmful gas is less. It follows that fuel cells are the most promising power generation technology from the viewpoint of energy conservation and ecological environment conservation.

Along with the requirement of higher power of the fuel cell stack, the number of the bipolar plates is more and more, the traditional vertical assembly is adopted, along with the improvement of the power of the stack, the membrane electrode at the bottom of the stack is required to bear the weight of the upper bipolar plate and the end plate besides the assembly pressure, the compression amount of the membrane electrode is greatly changed, and the reduction of the performance and the service life of the stack is caused by the overlarge compression amount of the membrane electrode, so that part of manufacturers try to change the installation angle of the stack in the process of assembling the high-power cell stack so as to control the compression amount of the membrane electrode, and the traditional cell stack assembly platform cannot meet the multidirectional assembly requirement.

Disclosure of Invention

In view of the above, embodiments of the present invention provide a hydrogen fuel cell stack assembly.

The embodiment of the invention provides a hydrogen fuel cell stack assembling device, which comprises a stack assembling platform, an air tightness tester and an angle tester, wherein the stack assembling platform comprises a supporting plate, a support and a bearing plate, the transverse section of the support is trapezoidal, the lower bottom of the support is fixedly installed on the lower surface of the supporting plate, the bearing plate is vertically connected with one end of the supporting plate, the air tightness tester is arranged around the stack assembling platform and is connected with a cell stack positioned on the supporting plate through a pipeline, the angle tester is arranged on the supporting plate, the support is used for rapidly turning over the stack assembling platform, the bearing plate is used for supporting the cell stack, the air tightness tester is used for detecting the air tightness of the cell stack, and the angle tester is used for detecting the inclination angle of the supporting plate; the cell stack can be arranged vertically or obliquely or horizontally: the bearing plate supports the ground, so that the cell stack is vertically arranged; one waist of the bracket is supported on the ground, so that the cell stack is obliquely arranged; the upper bottom of the support is supported on the ground, so that the cell stack is horizontally arranged.

Furthermore, an electronic display screen is arranged on the air tightness tester and used for displaying test data of the air tightness tester.

Furthermore, a hydrogen inlet interface and a hydrogen outlet interface are arranged on the air tightness tester, and the hydrogen inlet interface and the hydrogen outlet interface are respectively in butt joint with a hydrogen inlet and a hydrogen outlet of the cell stack through metal hoses.

Furthermore, be equipped with empty interface, coolant liquid income interface and coolant liquid play interface on the gas tightness tester, empty interface, coolant liquid income interface with coolant liquid play interface respectively through the silica gel hose with the air inlet, air outlet, coolant liquid entry and the coolant liquid export butt joint of battery stack.

Furthermore, a hand-held tension rod is arranged on the support and used for manually adjusting the placing mode of the pile assembling platform.

Further, the bearing plate is a circular thin plate, and the diameter of the bearing plate is smaller than the diagonal length of the single cell in the cell stack.

The technical scheme provided by the embodiment of the invention has the following beneficial effects: according to the hydrogen fuel cell stack assembling device, the support is arranged below the cell stack assembling platform, so that an operator can quickly adjust the placement mode of the cell stack assembling platform according to the assembling requirement, the problem that other cell stack assemblies have vertical acting force on the membrane electrode in the cell stack assembling process is solved, the compression amount of the membrane electrode is effectively controlled, and the performance and the service life of the cell stack are guaranteed; in addition, the air tightness tester can test the leakage amount of the cell stack while assembling the cell stack, thereby ensuring the success rate of stacking and improving the assembly efficiency.

Drawings

Fig. 1 is a schematic structural view of a hydrogen fuel cell stack assembly apparatus according to the present invention.

Fig. 2 is a schematic diagram of two placement modes of the stack assembly platform 1 in fig. 1.

Fig. 3 is a schematic view of the cell stack 4 of fig. 1 horizontally placed on the stack assembly platform 1 in a lateral direction.

In the figure: 1-electric pile assembly platform, 11-support plate, 12-support, 12 a-hand-held tension rod, 13-bearing plate, 2-air tightness tester, 21-electronic display screen, 22-hydrogen inlet interface, 23-hydrogen outlet interface, 24-air inlet interface, 25-air outlet interface, 26-cooling liquid inlet interface, 27-cooling liquid outlet interface, 3-angle tester, 4-battery pile, 41-driving end plate, 42-positioning rod and 43-bearing end plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 3, an embodiment of the present invention provides a hydrogen fuel cell stack assembly apparatus, which includes a stack assembly platform 1, a gas tightness tester 2, and an angle tester 3.

The electric pile assembling platform 1 comprises a supporting plate 11, a support 12 and a bearing plate 13, wherein the supporting plate 11 is used for placing a battery pile 4, the front end and the rear end of the supporting plate 11 respectively correspond to a driving end plate 41 and a bearing end plate 43 of the battery pile 4, the transverse section of the support 12 is trapezoidal, the lower bottom of the support is fixedly installed on the lower surface of the supporting plate 11, a hand-held tension rod 12a is arranged on the support 12, the hand-held tension rod 12a is used for manually adjusting the placing mode of the electric pile assembling platform 1, and therefore the battery pile 4 can be vertically or obliquely or horizontally arranged: the pressure bearing plate 13 supports the ground, so that the cell stack 4 is vertically arranged; one waist of the bracket 12 is supported on the ground, so that the cell stack 4 is obliquely arranged; the upper bottom of the support 12 is supported on the ground, so that the cell stack 4 is horizontally disposed, in this embodiment, the holding tension rod 12a on the support 12 can be used to rapidly turn over the cell stack assembly platform 1, specifically, in the process of assembling the cell stack 4, an operator can adjust the placing mode of the cell stack assembly platform 1 through the holding tension rod 12a according to actual assembly requirements, for example, adjust the vertical placing mode to the horizontal placing mode, or adjust the vertical placing mode to the placing mode with a certain inclination angle (as shown in fig. 2), the pressure bearing plate 13 is vertically connected with one end of the support plate 11, the pressure bearing plate 13 is used to support the cell stack 4, the pressure bearing plate 13 is a circular thin plate, and the diameter of the pressure bearing plate 13 is smaller than the diagonal length of a single cell in the cell stack 4, so as to facilitate the screw assembly or ribbon packaging of the cell stack 4, in this embodiment, the pressure-bearing end plate 43 is tightly attached to the pressure-bearing plate 13, and when the stack assembly platform 1 is vertically placed, the pressure-bearing plate 13 can support the cell stack 4 through the pressure-bearing end plate 43.

The gas tightness tester 2 is arranged around the electric pile assembling platform 1 and is connected with and located on the battery pile 4 on the supporting plate 11 through a pipeline, the gas tightness tester 2 is used for detecting the gas tightness of the battery pile 4, specifically, the gas tightness tester 2 is further provided with a hydrogen inlet interface 22, a hydrogen outlet interface 23, an air inlet interface 24, an air outlet interface 25, a cooling liquid inlet interface 26 and a cooling liquid outlet interface 27, the hydrogen inlet interface 22 and the hydrogen outlet interface 23 are respectively butted with a hydrogen inlet (not shown in the drawing) and a hydrogen outlet (not shown in the drawing) of the battery pile 4 through metal hoses, so that the gas tightness tester 2 can detect the gas tightness of the hydrogen pipeline, and the air inlet interface 24, the air outlet interface 25, the cooling liquid inlet interface 26 and the cooling liquid outlet interface 27 are respectively connected with an air inlet (not shown in the drawing) and an air outlet (not shown in the drawing) of the battery pile 4 through silica gel hoses, An air outlet (not shown in the drawing), a cooling liquid inlet (not shown in the drawing) and a cooling liquid outlet (not shown in the drawing) are butted, so that the air tightness tester 2 can detect the air tightness and the cooling liquid tightness of the air pipeline and the cooling liquid pipeline, and in the embodiment, the air tightness tester 2 tests the cell stack 4 according to the test items including but not limited to total stack leakage, hydrogen cooling line leakage and air cooling line leakage.

The air tightness tester 2 is further provided with an electronic display screen 21, and the electronic display screen 21 is used for displaying test data of the air tightness tester 2, including but not limited to pressures and leakage rates of a hydrogen pipeline, an air pipeline and a cooling liquid pipeline, so that an operator can conveniently judge the condition of the galvanic pile in the assembling process, and the condition that the galvanic pile needs to be re-assembled due to leakage after the assembling is completed is prevented.

The angle tester 3 is arranged on the supporting plate 11, the angle tester 3 is used for detecting the inclination angle of the supporting plate 11, in the process of assembling the cell stack 4, when the number of single cells of the cell stack 4 is small (the number of single cells is less than 400), vertical assembly can be adopted, and the cell stack assembly platform 1 is adjusted to be horizontal according to the indication number of the angle tester 3 for conventional installation; when the number of the single cells of the cell stack 4 is large (for example, more than 400 cells), in order to ensure that each single cell is uniformly stressed in the installation process, the cell stack assembly platform 1 may be vertically placed, stack components such as the driving end plate 41, the membrane electrode, and the pressure-bearing end plate 43 of the cell stack 4 are positioned by a plurality of positioning rods 42, and then the angle of the cell stack assembly platform 1 is adjusted according to the actual number of the single cells and the indication number of the angle tester 3, so as to complete compression fixation and assembly, thereby ensuring that the compression amount of the membrane electrode does not change greatly.

The specific steps for assembling the cell stack 4 using a hydrogen fuel cell stack assembly apparatus of the present invention are as follows:

s1, pre-fixing the cell stack 4: the stack assembly (including a lower current collecting plate, a stack single cell, an upper current collecting plate and a stack upper end plate) is assembled through the positioning rod 42, a fastening nut is fixed on the positioning rod 42 in a threaded connection manner, a small amount of torsion is applied, and therefore the stack assembly is pre-fixed through the matching between the fastening nut and the positioning rod 42;

s2, transversely arranging the cell stack 4: transversely placing the cell stacks 4 which are pre-fixed so that the cell stack components are mutually in a parallel state in the vertical direction, and thus the membrane electrode is not stressed by other cell stack components;

s3, fastening the cell stack 4: sequentially applying a button force to the fastening nuts according to a symmetrical fastening sequence, namely sequentially screwing the fastening nuts at opposite corners, so as to finish the fixation of the stack assembly;

s4, detecting the airtightness of the battery stack 4: the airtightness of the cell stack 4 is detected by the airtightness tester 2, and if the cell stack 4 is airtight, the assembly is completed, otherwise, the operation returns to S3, and the assembly is restarted.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.