CN111947843A - Airtight detection shutoff frock of fuel cell bipolar plate - Google Patents
Airtight detection shutoff frock of fuel cell bipolar plate Download PDFInfo
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- CN111947843A CN111947843A CN202010980223.4A CN202010980223A CN111947843A CN 111947843 A CN111947843 A CN 111947843A CN 202010980223 A CN202010980223 A CN 202010980223A CN 111947843 A CN111947843 A CN 111947843A
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- lower sealing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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Abstract
The application provides a fuel cell bipolar plate airtight detection shutoff frock belongs to the fuel cell field. It comprises a press base; the plurality of press sliding columns are respectively fixedly arranged on the two opposite side ends of the press base at intervals; the press top plate is fixedly arranged on the top ends of the plurality of press sliding columns and is parallel to the press base; the press moving plate is sleeved on the plurality of press sliding columns in a lifting manner and is respectively parallel to the press base and the press top plate; the lower sealing plate is arranged on the upper surface of the press moving plate, and two opposite side ends of the lower sealing plate are used for installing two bipolar plates which are oppositely arranged; the upper sealing plate is fixedly arranged on the bottom surface of the top plate of the press and is parallel to the lower sealing plate; the driving structure is arranged on the press base, is in transmission connection with the press moving plate and is used for driving the press moving plate to drive the lower sealing plate to lift. The tool structure is reliable in positioning operation, can quickly complete the installation of the airtight tool of the bipolar plate, and can also ensure that the bipolar plate is accurately positioned without deformation.
Description
Technical Field
The application relates to the field of fuel cells, in particular to an airtight detection and plugging tool for a bipolar plate of a fuel cell.
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. Whether the air tightness of a bipolar plate of a fuel cell stack core part is qualified or not directly influences the air tightness of the assembled stack, so that the air tightness of the bipolar plate needs to be detected before the stack is assembled in order to ensure that the air tightness of the assembled stack is qualified and reduce the repair.
The plugging tool in the existing fuel cell stack bipolar plate airtight detection device mostly adopts the plugging of an upper clamping plate, a lower clamping plate and a sealing ring which are shaped like the bipolar plates. The positioning of the bipolar plate on the lower clamping plate of the plugging tool needs to utilize a positioning hole or a sealing groove designed on the bipolar plate, and the positioning on the upper clamping plate is ensured through the structural design and debugging of the detection device. However, in practical situations, some bipolar plates are not designed with positioning holes, so that the bipolar plates cannot be positioned by using the same positioning mode; the lower clamping plate shakes during upward press mounting, and the error of a size chain exists, so that the positioning effect of the lower clamping plate and the bipolar plate is not ideal; these effects slightly lead to failure of the bipolar plate airtightness test or greatly increase the clamping time of the bipolar plate, and may seriously lead to deformation of the bipolar plate during press-fitting clamping.
Disclosure of Invention
One of the objectives of the present application is to provide a fuel cell bipolar plate airtightness detection plugging tool, which aims to solve the problem of difficulty in airtightness detection operation of the existing fuel cell stack bipolar plate.
The technical scheme of the application is as follows:
the utility model provides a fuel cell bipolar plate airtight detection shutoff frock, includes:
a press base;
the plurality of press sliding columns are fixedly arranged on the two opposite side ends of the press base at intervals respectively;
the press top plate is fixedly arranged on the top ends of the plurality of press sliding columns and is parallel to the press base;
the press moving plate is sleeved on the plurality of press sliding columns in a lifting manner and is respectively parallel to the press base and the press top plate;
the lower sealing plate is arranged on the upper surface of the press moving plate, and two opposite side ends of the lower sealing plate are used for installing two bipolar plates which are oppositely arranged;
the upper sealing plate is fixedly arranged on the bottom surface of the top plate of the press, is parallel to the lower sealing plate and is used for sealing the bipolar plate together with the lower sealing plate;
and the driving structure is arranged on the press base, is in transmission connection with the press moving plate, is used for driving the press moving plate to drive the lower sealing plate to lift, and is used for sealing the bipolar plate together with the lower sealing plate.
As a technical scheme of this application, the press traveller is four, and both ends respectively perpendicular fixed ground connect in four corner ends of press base, four corner ends of press roof are served.
As a technical scheme of the application, the adjacent press sliding columns on the same side of the press base are parallel.
As a technical scheme of this application, the drive structure includes the cylinder, the cylinder is installed on the press base, and the drive end transmission connect in the bottom center of press movable plate.
As a technical scheme of this application, install two guide arms on the press movable plate at interval, two line between the guide arm with the axis of press movable plate parallels, the one end of guide arm connect in on the upper surface of press movable plate, the other end passes in proper order lower closing plate, upper closing plate and the press roof.
As a technical scheme of this application, install a plurality of first locating pins on the upper surface of press movable plate at interval, it is a plurality of first locating pin is in respectively outside the relative both sides of lower sealing plate, be used for right the lower sealing plate advances line location.
As a technical scheme of the present application, the lower sealing plate includes a lower clamping plate and a lower sealing ring, and the lower clamping plate is fixedly mounted on an upper surface of the press moving plate; the lower clamping plate is provided with a lower sealing groove, the lower sealing ring is arranged in the lower sealing groove, and the two bipolar plates are respectively arranged on two opposite side ends of the lower clamping plate.
As a technical scheme of this application, all install a plurality of second locating pins at intervals on two mutually perpendicular walls of lower plate, a plurality of the second locating pin is in respectively outside the lateral wall of bipolar plate for to the bipolar plate advances line location.
As a technical scheme of this application, the upper seal plate includes punch holder and upper seal circle, punch holder fixed mounting is in on the bottom surface of press roof, and seted up the upper seal groove, the upper seal circle is installed in the upper seal groove.
The beneficial effect of this application:
the utility model provides a fuel cell bipolar plate airtight detection shutoff frock, it utilizes bipolar plate peripheral location, increases guide arm location direction among the pressure equipment process, has overcome on the one hand not have the locating hole on the bipolar plate and because the inaccurate problem in location that rocks and lead to in the pressure equipment, has guaranteed the reliability of bipolar plate location operation on the one hand. The tool has the advantages of simple structure, strong compatibility, reliable and simple positioning operation, simple and convenient and quick installation of the airtight tool of the bipolar plate, and capability of ensuring accurate positioning and no deformation of the bipolar plate.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of a fuel cell bipolar plate airtightness detection plugging tool provided in an embodiment of the present application;
FIG. 2 is a schematic view of a lower sealing plate according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of an upper sealing plate according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a partial structure of a fuel cell bipolar plate airtightness detection plugging tool provided in an embodiment of the present application.
Icon: 1-a fuel cell bipolar plate airtightness detection plugging tool; 2-press base; 3-a press slide post; 4-press top plate; 5, moving a plate by a press; 6-lower sealing plate; 7-a bipolar plate; 8-upper sealing plate; 9-a drive structure; 10-a guide rod; 11-a first locator pin; 12-lower splint; 13-lower sealing ring; 14-a second locating pin; 15-upper splint; 16-upper seal ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Further, in the present application, unless expressly stated or limited otherwise, the first feature may be directly contacting the second feature or may be directly contacting the second feature, or the first and second features may be contacted with each other through another feature therebetween, not directly contacting the second feature. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1 and fig. 2 to 4, the present application provides an airtight testing and plugging tool 1 for a bipolar plate of a fuel cell, which comprises a press base 2, a press moving plate 5 and a press top plate 4, which are arranged in parallel and at an interval from bottom to top; the bottom ends of a plurality of press sliding columns 3 are respectively and fixedly arranged on two opposite side ends of a press base 2 at intervals, and the top ends of the press sliding columns respectively penetrate through four corner ends of a press moving plate 5 and are fixedly connected to four corner ends of a press top plate 4; the press moving plate 5 is sleeved on the plurality of press sliding columns 3 in a lifting manner and is respectively parallel to the press base 2 and the press top plate 4; meanwhile, the driving structure 9 is fixedly installed at the central position of the upper surface of the press base 2, and the driving end thereof is in transmission connection with the bottom of the press moving plate 5, and is used for driving the press moving plate 5 to ascend and descend, and driving the lower sealing plate 6 to ascend and descend, and sealing the bipolar plate 7 together with the lower sealing plate 6. The lower sealing plate 6 is arranged on the upper surface of the press moving plate 5, and two opposite side ends of the lower sealing plate 6 are used for installing two bipolar plates 7 which are oppositely arranged; the upper sealing plate 8 is fixedly arranged on the bottom surface of the top plate 4 of the press and is parallel to the lower sealing plate 6, and is used for realizing air tightness of the bipolar plate 7 together with the lower sealing plate 6.
In this embodiment, four press pillars 3 are used, and two ends of each press pillar 3 are vertically and fixedly connected to four corner ends of the press base 2 and four corner ends of the press top plate 4, respectively. In other embodiments, six, eight, etc. press rams 3 may be used, and are equally divided into two groups, which are respectively mounted on opposite lateral ends of the press base 2.
It should be noted that, in the present embodiment, the adjacent press rollers 3 on the same side of the press base 2 are parallel to each other.
It should be noted that, in this embodiment, the driving structure 9 may be an air cylinder, the air cylinder is fixedly installed at a central position of the upper surface of the press base 2, a driving end of the air cylinder is connected to the center of the bottom of the press moving plate 5 in a transmission manner, and the driving structure 9 is started, and can drive the press moving plate 5 to move up and down on the press sliding column 3, so as to drive the lower sealing plate 6 thereon to move up, and achieve air tightness with the bipolar plate 7 together with the upper sealing plate 8. The air cylinder is used for providing pressing force and plays a role of pressing the lower sealing plate 6 and the upper sealing plate 8.
Specifically, the air cylinder is fixed on the press base 2 through bolts, one ends of four press sliding columns 3 are screwed and fixed on the press base 2, then the press moving plate 5 penetrates through the four press sliding columns 3 and is connected with the air cylinder, and finally the press top plate 4 is fixed on the top end of the press sliding column 3 through bolts.
In addition, two guide rods 10 are mounted on the press moving plate 5 at intervals, a connecting line between the two guide rods 10 is parallel to the axis of the press moving plate 5, and the guide rods 10 are used for positioning and guiding the press in the process of pressing the upper sealing plate 8 and the lower sealing plate 6. A positioning hole for fixing the guide rod 10 is formed in the upper surface of the press moving plate 5, and does not penetrate through the press moving plate 5; through holes corresponding to the positioning holes are also formed in the positions corresponding to the lower sealing plate 6, the upper sealing plate 8 and the top plate 4 of the press; one end of the guide rod 10 is inserted into the positioning hole, and the other end of the guide rod passes through the through holes of the lower sealing plate 6, the upper sealing plate 8 and the top plate 4 of the press in sequence and penetrates out of the top plate 4 of the press for a certain distance.
Further, a plurality of first locating pin 11 holes have been seted up on the upper surface of press movable plate 5 at intervals, all install a plurality of first locating pins 11 in every first locating pin 11 hole, and a plurality of first locating pins 11 are outside being in lower closing plate 6's relative both sides respectively for carry out the primary localization to lower closing plate 6, play the effect of placing fast.
Specifically, the lower sealing plate 6 includes a lower clamping plate 12 and a lower sealing ring 13, the lower clamping plate 12 is fixedly mounted on the upper surface of the press moving plate 5, and the first positioning pins 11 are respectively located outside two opposite sides of the lower clamping plate 12 for positioning the lower clamping plate 12. Meanwhile, a lower sealing groove is formed in the lower clamping plate 12, the lower sealing ring 13 is fixedly installed in the lower sealing groove through viscose glue, the two bipolar plates 7 are respectively installed on two opposite side ends of the lower clamping plate 12, and a sealed cavity is formed by the lower sealing ring 13 and one side of each bipolar plate 7.
According to the size of four sides of the bipolar plate 7 to be detected, a plurality of second positioning pins 14 are respectively processed on two sides, which are perpendicular to each other, of the lower clamping plate 12, the second positioning pins 14 are assembled in the second positioning pins 14 in an interference fit mode, the height of a leakage part is 5mm, and the second positioning pins 14 are respectively positioned outside the outer side wall of the bipolar plate 7 and are used for positioning the bipolar plate 7; the shape of one side of the bipolar plate 7 is imitated, a similar shape is processed on the lower clamping plate 12, and then a lower sealing ring 13 made of silica gel material and manufactured according to the shape of the lower sealing groove is firmly adhered on the lower sealing groove of the lower clamping plate 12.
Specifically, the upper sealing plate 8 includes an upper clamping plate 15 and an upper sealing ring 16, the upper clamping plate 15 is fixedly mounted on the bottom surface of the top plate 4 of the pressing machine, and a plurality of second positioning pins 14 are respectively located outside the outer side wall of the bipolar plate 7 for positioning the bipolar plate 7. Meanwhile, an upper sealing groove is formed in the upper clamping plate 15, an upper sealing ring 16 is fixedly mounted in the upper sealing groove through viscose, and the upper sealing ring 16 plays a role of forming a sealing cavity with the opposite side of the bipolar plate 7.
Further, the shape of the opposite side of the bipolar plate 7 is profiled, a similar shape is processed on the upper clamping plate 15, and then an upper sealing ring 16 made of silica gel material and manufactured according to the shape of the sealing groove is firmly adhered in the upper sealing groove of the upper clamping plate 15; the-upper clamping plate 15 is then bolted to the bottom of the press top plate 4.
Further, the guide rod 10 is made of stainless steel, and the first positioning pin 11 is made of 304 stainless steel; the press top plate 4, the press sliding column 3, the press moving plate 5, the press base 2 and the cylinder are all made of 304 stainless steel materials.
When the airtightness is detected, the bipolar plate 7 is placed on the lower sealing plate 6, then the lower sealing plate 6 is placed on the press moving plate 5, the press moving plate 5 moves upwards under the action of the air cylinder, and finally the bipolar plate is tightly pressed with the upper sealing plate 8 fixed on the top plate 4 of the press under a certain pressure, so that the sealing effect required by the airtightness detection of the bipolar plate 7 is achieved.
According to the fuel cell bipolar plate airtightness detection plugging tool 1, the bipolar plate 7 is located at the periphery, the guide rod 10 is additionally arranged in the press fitting process for positioning and guiding, on one hand, the problems that no positioning hole is formed in the bipolar plate 7, and the positioning is not accurate due to shaking in the press fitting are solved, and on the other hand, the reliability of the bipolar plate 7 in positioning operation is guaranteed. The tool has the advantages of simple structure, strong compatibility, reliable and simple positioning operation, simple and convenient and quick installation of the airtight tool of the bipolar plate 7, and capability of ensuring accurate positioning and no deformation of the bipolar plate 7.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. The utility model provides a fuel cell bipolar plate airtight detection shutoff frock which characterized in that includes:
a press base;
the plurality of press sliding columns are fixedly arranged on the two opposite side ends of the press base at intervals respectively;
the press top plate is fixedly arranged on the top ends of the plurality of press sliding columns and is parallel to the press base;
the press moving plate is sleeved on the plurality of press sliding columns in a lifting manner and is respectively parallel to the press base and the press top plate;
the lower sealing plate is arranged on the upper surface of the press moving plate, and two opposite side ends of the lower sealing plate are used for installing two bipolar plates which are oppositely arranged;
the upper sealing plate is fixedly arranged on the bottom surface of the top plate of the press, is parallel to the lower sealing plate and is used for sealing the bipolar plate together with the lower sealing plate;
and the driving structure is arranged on the press base, is in transmission connection with the press moving plate, is used for driving the press moving plate to drive the lower sealing plate to lift, and is used for sealing the bipolar plate together with the lower sealing plate.
2. The fuel cell bipolar plate airtightness detection plugging tool according to claim 1, wherein the number of the press slide columns is four, and both ends of the press slide columns are respectively and vertically and fixedly connected to four corner ends of the press base and four corner ends of the press top plate.
3. The fuel cell bipolar plate airtightness detection plugging tool according to claim 2, wherein adjacent ones of the press spools on the same side of the press base are parallel to each other.
4. The fuel cell bipolar plate airtightness detection and plugging tool according to claim 1, wherein the driving structure comprises an air cylinder, the air cylinder is mounted on the press base, and a driving end is in transmission connection with the bottom center of the press moving plate.
5. The fuel cell bipolar plate airtightness detection and plugging tool according to claim 1, wherein two guide rods are mounted on the press moving plate at intervals, a connecting line between the two guide rods is parallel to an axis of the press moving plate, one end of each guide rod is connected to the upper surface of the press moving plate, and the other end of each guide rod sequentially penetrates through the lower sealing plate, the upper sealing plate and the press top plate.
6. The fuel cell bipolar plate airtightness detection and plugging tool according to claim 1, wherein a plurality of first positioning pins are mounted on an upper surface of the press moving plate at intervals, and the plurality of positioning pins are respectively located outside opposite sides of the lower sealing plate and used for positioning the lower sealing plate.
7. The fuel cell bipolar plate airtightness detection plugging tool according to claim 1, wherein the lower sealing plate includes a lower clamping plate and a lower sealing ring, and the lower clamping plate is fixedly mounted on an upper surface of the press moving plate; the lower clamping plate is provided with a lower sealing groove, the lower sealing ring is arranged in the lower sealing groove, and the two bipolar plates are respectively arranged on two opposite side ends of the lower clamping plate.
8. The fuel cell bipolar plate airtightness detection plugging tool according to claim 7, wherein a plurality of second positioning pins are mounted on two perpendicular side walls of the lower clamping plate at intervals, and the plurality of second positioning pins are respectively located outside outer side walls of the bipolar plates and used for positioning the bipolar plates.
9. The fuel cell bipolar plate airtightness detection plugging tool according to claim 1, wherein the upper sealing plate includes an upper clamping plate and an upper sealing ring, the upper clamping plate is fixedly mounted on the bottom surface of the top plate of the pressing machine and is provided with an upper sealing groove, and the upper sealing ring is mounted in the upper sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980223.4A CN111947843A (en) | 2020-09-17 | 2020-09-17 | Airtight detection shutoff frock of fuel cell bipolar plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980223.4A CN111947843A (en) | 2020-09-17 | 2020-09-17 | Airtight detection shutoff frock of fuel cell bipolar plate |
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| Publication Number | Publication Date |
|---|---|
| CN111947843A true CN111947843A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010980223.4A Pending CN111947843A (en) | 2020-09-17 | 2020-09-17 | Airtight detection shutoff frock of fuel cell bipolar plate |
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| CN (1) | CN111947843A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479579A (en) * | 2021-05-25 | 2021-10-08 | 深圳市乐华行模具有限公司 | Hydraulic rail flat car device |
| CN114367933A (en) * | 2021-12-31 | 2022-04-19 | 上海捷氢科技股份有限公司 | Fuel cell stack repair positioning tool |
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| CN102087161A (en) * | 2010-11-25 | 2011-06-08 | 新源动力股份有限公司 | A fuel cell bipolar plate water cavity air tightness detection device and detection method |
| CN104006933A (en) * | 2014-05-16 | 2014-08-27 | 江苏绿遥燃料电池系统制造有限公司 | Quick leak detecting device of fuel battery bipolar plates |
| CN208889772U (en) * | 2018-09-30 | 2019-05-21 | 武汉喜玛拉雅光电科技股份有限公司 | A rolling system for fuel cell bipolar plates |
| CN209656024U (en) * | 2019-04-28 | 2019-11-19 | 深圳市昆龙卓盈机电有限公司 | A kind of hydrogen-oxygen fuel cell bipolar plates roughness detection equipments |
| CN111540933A (en) * | 2020-05-19 | 2020-08-14 | 浙江锋源氢能科技有限公司 | Fuel cell bipolar plate airtightness detection device and detection method |
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- 2020-09-17 CN CN202010980223.4A patent/CN111947843A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087161A (en) * | 2010-11-25 | 2011-06-08 | 新源动力股份有限公司 | A fuel cell bipolar plate water cavity air tightness detection device and detection method |
| CN104006933A (en) * | 2014-05-16 | 2014-08-27 | 江苏绿遥燃料电池系统制造有限公司 | Quick leak detecting device of fuel battery bipolar plates |
| CN208889772U (en) * | 2018-09-30 | 2019-05-21 | 武汉喜玛拉雅光电科技股份有限公司 | A rolling system for fuel cell bipolar plates |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479579A (en) * | 2021-05-25 | 2021-10-08 | 深圳市乐华行模具有限公司 | Hydraulic rail flat car device |
| CN114367933A (en) * | 2021-12-31 | 2022-04-19 | 上海捷氢科技股份有限公司 | Fuel cell stack repair positioning tool |
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Application publication date: 20201117 |
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