CN220772477U - Detection device for fuel cell air tightness - Google Patents

Abstract

The utility model discloses a detection device for the air tightness of a fuel cell, which particularly relates to the technical field of fuel cell detection, and comprises a workbench, wherein two groups of clamping blocks which are symmetrically distributed are fixedly arranged at the bottom end of the workbench, a sealing box is sleeved outside each group of clamping blocks in a sliding manner, an L-shaped plate is slidably arranged on one side of the inner wall of the sealing box, a first fixing plate is fixedly arranged on the upper surface of the bottom of the L-shaped plate, and fixing columns are fixedly arranged at four corners of the top end of the first fixing plate.

Description

A device for detecting gas tightness of fuel cell

Technical Field

The utility model relates to the technical field of fuel cell detection, in particular to a fuel cell air tightness detection device.

Background technique

A fuel cell is a chemical device that converts the chemical energy of a fuel directly into electrical energy, also known as an electrochemical generator. It is the fourth power generation technology after hydroelectric power generation, thermal power generation, and atomic power generation. Since fuel cells convert part of the Gibbs free energy in the chemical energy of a fuel into electrical energy through electrochemical reactions, they are not limited by the Carnot cycle effect and are therefore highly efficient. In addition, fuel cells use fuel and oxygen as raw materials and have no mechanical transmission parts, so they emit very little harmful gas and have a long service life. However, in existing technologies, generally only one fuel cell can be sealed, inflated, and the pressure value can be determined for airtightness testing. This results in slow single-detection speed and low efficiency. To this end, we propose a fuel cell airtightness testing device to solve the above problems.

Utility Model Content

The purpose of the utility model is to provide a fuel cell air tightness detection device to solve the problems raised in the above background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fuel cell air tightness detection device, comprising a workbench, wherein two groups of symmetrically distributed card blocks are fixedly installed at the bottom end of the workbench, and the outer sliding sleeve of each group of the card blocks is provided with a sealing box, and an L-shaped plate is slidably installed on one side of the inner wall of the sealing box, and a first fixed plate is fixedly installed on the bottom upper surface of the L-shaped plate, and fixed columns are fixedly installed at the four corners of the top of the first fixed plate, and the outer sliding sleeve of the fixed column is provided with a first slide plate, and the outer part of the fixed column located above the first slide plate is provided with a second fixed plate, and the outer part of the fixed column located above the second fixed plate is provided with a second slide plate, and the first fixed A fuel cell is provided at the top of the fixed plate and the second fixed plate, a second electric telescopic rod is fixedly installed on the upper surface of the bottom inner wall of the sealed box, a driving end of the second electric telescopic rod is fixedly installed on the bottom end of the L-shaped plate, a second sealing cover is fixedly installed on the bottom ends of the two first slides and the two second slides, a second air pipe hole is opened on one side of the second sealing cover, an L-shaped side plate is fixedly installed on one side of the workbench, a first electric telescopic rod is fixedly installed on the lower surface of the top of the L-shaped side plate, a mounting plate is fixedly installed on the driving end of the first electric telescopic rod, a symmetrically distributed first sealing cover is fixedly installed on the bottom end of the mounting plate, and the first sealing cover corresponds to the top cavity opening of the sealed box.

Preferably, a fixing seat is fixedly mounted on one side of the L-shaped plate away from the inner wall of the sealing box, a threaded rod is rotatably mounted on the middle of the fixing seat, and the outer thread of the threaded rod is connected to one side of the first slide plate and the second slide plate.

Preferably, the first slide plate is located below the second slide plate, and one side of the first slide plate and the second slide plate are in contact with one side of the L-shaped plate.

Preferably, a side of the sealing box away from the L-shaped side plate is provided with symmetrically distributed first air pipe holes, and the first air pipe holes correspond to the second air pipe holes.

Preferably, symmetrically distributed L-shaped fixing blocks are fixedly mounted on the top ends of the first fixing plate and the second fixing plate, and the fuel cell is in contact with the L-shaped fixing blocks.

Preferably, a third electric telescopic rod is fixedly installed on the side of the L-shaped side panel close to the sealed box, a third slide is fixedly installed on the driving end of the third electric telescopic rod, the bottom end of the third slide is slidably engaged with the top end of the card block, and the side of the third slide away from the third electric telescopic rod is fixedly installed on one side of the two sealed boxes.

Preferably, a motor is fixedly mounted on one end of the L-shaped plate away from the second slide plate, and a driving end of the motor is fixedly mounted on the end of the threaded rod.

Preferably, support legs are fixedly installed at the four corners of the bottom end of the workbench.

Compared with the prior art, the beneficial effects of the utility model are:

1. By setting a second electric telescopic rod, when the second electric telescopic rod is controlled to be opened, the L-shaped plate and the first fixed plate, the second fixed plate and the first slide plate, the second slide plate are driven to move upward until they are at the top cavity of the sealing box, and then the fuel cell is manually placed on the top of the first fixed plate and the second fixed plate, so that the pressure values of multiple fuel cells can be judged and the air tightness test can be performed at the same time, which improves the speed and increases the work efficiency.

2. By setting a motor, when the motor is controlled to start, the threaded rod is driven to rotate, and one side of the first slide plate and the second slide plate contacts one side of the L-shaped plate, thereby driving the first slide plate, the second slide plate and the second sealing cover to slide downward, and the fuel cell placed on the first fixed plate and the second fixed plate is sealed, and then the inside is inflated, and then the two sealing boxes are respectively connected to the airtight device through the side conduits to determine the pressure value for airtightness detection.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

Fig. 1 is a schematic diagram of the structure of the utility model.

FIG. 2 is a schematic diagram of the structure of the sealed box after being disassembled in the utility model.

FIG3 is an enlarged view of point A in FIG2 of the present invention.

FIG. 4 is an enlarged view of point B in FIG. 2 of the present invention.

In the figure: 1. workbench; 11. clamping block; 12. sealing box; 13. L-shaped side panel; 14. first electric telescopic rod; 15. mounting plate; 16. first sealing cover; 101. supporting leg; 102. first air pipe hole; 121. L-shaped plate; 122. first fixing plate; 123. fixing column; 124. first slide plate; 125. fuel cell; 126. L-shaped fixing block; 127. second sealing cover; 128. second electric telescopic rod; 1221. second fixing plate; 1241. second slide plate; 1271. second air pipe hole; 2. fixing seat; 21. threaded rod; 22. motor; 3. third electric telescopic rod; 31. third slide plate.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Embodiment: As shown in Figures 1-4, the utility model provides a fuel cell air tightness detection device, including a workbench 1, the bottom end of the workbench 1 is fixedly installed with two groups of symmetrically distributed blocks 11, each group of the blocks 11 is provided with a sealing box 12 on its outer sliding sleeve, an L-shaped plate 121 is slidably installed on one side of the inner wall of the sealing box 12, a first fixed plate 122 is fixedly installed on the bottom upper surface of the L-shaped plate 121, and fixed columns 123 are fixedly installed at the four corners of the top of the first fixed plate 122, and the outer sliding sleeve of the fixed column 123 is provided with a first slide plate 124, and the fixed column The outer part of the fixing column 123 is located above the first slide plate 124 and is fixedly sleeved with a second fixing plate 1221. The outer part of the fixing column 123 is located above the second fixing plate 1221 and is slidably sleeved with a second slide plate 1241. The tops of the first fixing plate 122 and the second fixing plate 1221 are provided with a fuel cell 125. A second electric telescopic rod 128 is fixedly installed on the upper surface of the bottom of the inner wall of the sealing box 12. The driving end of the second electric telescopic rod 128 is fixedly installed on the bottom end of the L-shaped plate 121. The bottom ends of the two first slide plates 124 and the two second slide plates 1241 are fixedly installed with a second A sealing cover 127, a second air pipe hole 1271 is opened on one side of the second sealing cover 127, an L-shaped side plate 13 is fixedly installed on one side of the workbench 1, a first electric telescopic rod 14 is fixedly installed on the top lower surface of the L-shaped side plate 13, a mounting plate 15 is fixedly installed on the driving end of the first electric telescopic rod 14, a symmetrically distributed first sealing cover 16 is fixedly installed on the bottom end of the mounting plate 15, the first sealing cover 16 corresponds to the top cavity of the sealing box 12, and the tops of the first fixing plate 122 and the second fixing plate 1221 are fixedly installed with symmetrically distributed L-shaped fixing blocks 1 26. The fuel cell 125 is in contact with the L-shaped fixed block 126. By setting a second electric telescopic rod 128, when the second electric telescopic rod 128 is controlled to be turned on, the L-shaped plate 121 and the first fixed plate 122, the second fixed plate 1221 and the first slide plate 124, the second slide plate 1241 are driven to move upward until they are at the top cavity of the sealing box 12, and then the fuel cell 125 is manually placed on the top of the first fixed plate 122 and the second fixed plate 1221, so that the pressure values of multiple fuel cells 125 can be judged and the air tightness detection can be performed at the same time, which improves the speed and increases the work efficiency.

A fixing seat 2 is fixedly installed on one side of the inner wall of the L-shaped plate 121 away from the sealing box 12, a threaded rod 21 is rotatably installed in the middle of the fixing seat 2, and the external thread of the threaded rod 21 is connected to one side of the first slide 124 and the second slide 1241, the first slide 124 is located below the second slide 1241, one side of the first slide 124 and the second slide 1241 is in contact with one side of the L-shaped plate 121, and a motor 22 is fixedly installed on one end of the L-shaped plate 121 away from the second slide 1241, and the driving end of the motor 22 is fixedly installed on The end of the threaded rod 21 is provided with a motor 22. When the motor 22 is controlled to be turned on, the threaded rod 21 is driven to rotate, and one side of the first slide plate 124 and the second slide plate 1241 contacts one side of the L-shaped plate 121, thereby driving the first slide plate 124 and the second slide plate 1241 and the second sealing cover 127 to slide downward, and the fuel cell 125 placed on the first fixed plate 122 and the second fixed plate 1221 is sealed, and then the inside is inflated, and then the two sealed boxes 12 are respectively connected to the airtight device through the side conduits to determine the pressure value for airtightness detection.

A side of the sealing box 12 away from the L-shaped side plate 13 is provided with symmetrically distributed first air pipe holes 102 , and the first air pipe holes 102 correspond to the second air pipe holes 1271 .

A third electric telescopic rod 3 is fixedly installed on one side of the L-shaped side plate 13 close to the sealing box 12, a third slide plate 31 is fixedly installed on the driving end of the third electric telescopic rod 3, the bottom end of the third slide plate 31 is slidably engaged with the top end of the card block 11, and the side of the third slide plate 31 away from the third electric telescopic rod 3 is fixedly installed on one side of the two sealing boxes 12.

Support legs 101 are fixedly installed at the four corners of the bottom end of the workbench 1.

Working principle: First, the second electric telescopic rod 128 is controlled to be turned on, and the L-shaped plate 121, the first fixed plate 122, the second fixed plate 1221, the first slide plate 124, and the second slide plate 1241 are moved upward until they are at the top cavity of the sealed box 12, and then the fuel cell 125 is manually placed on the top of the first fixed plate 122 and the second fixed plate 1221 respectively. After the fuel cell 125 is placed, the second electric telescopic rod 128 is turned on again, and the L-shaped plate 121, the first fixed plate 122, the second fixed plate 1221, the first slide plate 124, and the second slide plate 1241 are moved downward until they are all completely dropped into the inside of the sealed box 12, and then the motor 22 is controlled to be turned on, and the threaded rod 21 is driven to rotate, and one side of the first slide plate 124 and the second slide plate 1241 contacts one side of the L-shaped plate 121, thereby driving the first slide plate 124 and the second The slide plate 1241 and the second sealing cover 127 slide downward to seal the fuel cell 125 placed on the first fixed plate 122 and the second fixed plate 1221, and then the third electric telescopic rod 3 is controlled to be opened, driving the third slide plate 31 and the two sealing boxes 12 to move toward the L-shaped side plate 13 on the block 11 and be located below the first sealing cover 16, and the first electric telescopic rod 14 is controlled to be opened, driving the mounting plate 15 and the two first sealing covers 16 to move downward and overlap with the top cavity openings of the two sealing boxes 12 to seal the sealing boxes 12, and then inserting the inflation tube into the first air pipe hole 102 and the second air pipe hole 1271, filling the second sealing cover 127 and the first sealing cover 16 with a certain amount of gas, and then the two sealing boxes 12 are respectively connected to the airtight device through the side conduits to judge the pressure value and perform the airtightness test of the fuel cell 125.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. The utility model provides a detection device of fuel cell gas tightness, includes workstation (1), its characterized in that: two groups of clamping blocks (11) which are symmetrically distributed are fixedly arranged at the bottom end of the workbench (1), a sealing box (12) is arranged on the outer sliding sleeve of each group of clamping blocks (11), an L-shaped plate (121) is slidably arranged on one side of the inner wall of the sealing box (12), a first fixing plate (122) is fixedly arranged on the upper surface of the bottom of the L-shaped plate (121), fixing columns (123) are fixedly arranged at four corners of the top end of the first fixing plate (122), a first sliding plate (124) is arranged on the outer sliding sleeve of the fixing columns (123), a second fixing plate (1221) is fixedly sleeved on the outer portion of the fixing columns (123) above the first sliding plate (124), a second sliding plate (1241) is slidably sleeved on the outer portion of the second fixing plate (1221), fuel cells (125) are arranged on the top ends of the first fixing plate (122) and the second fixing plate (1221), a second electric telescopic rod (128) is fixedly arranged on the upper surface of the bottom of the inner wall of the sealing box (12), sealing caps (127) are fixedly arranged at the bottom ends of the second electric rod (128), two sealing caps (127) are fixedly arranged on the bottom ends of the second electric rod (122), two sealing caps (127) are fixedly arranged on the bottom ends of the second sliding plates (127), one side of workstation (1) fixed mounting has L shape curb plate (13), the top lower surface fixed mounting of L shape curb plate (13) has first electric telescopic handle (14), the driving end fixed mounting of first electric telescopic handle (14) has mounting panel (15), the bottom fixed mounting of mounting panel (15) has first sealed lid (16) of symmetric distribution, the top accent department of first sealed lid (16) and seal box (12) corresponds.

2. The fuel cell air tightness detection device according to claim 1, wherein: the inner wall one side of keeping away from seal box (12) of L shaped plate (121) fixed mounting has fixing base (2), threaded rod (21) are installed in the middle part rotation of fixing base (2), the outside threaded connection of threaded rod (21) is in first slide (124) and second slide (1241) one side, first slide (124) are located the below of second slide (1241).

3. The fuel cell air tightness detection device according to claim 2, wherein: one side of the first sliding plate (124) and one side of the second sliding plate (1241) are contacted with one side of the L-shaped plate (121).

4. The fuel cell air tightness detection device according to claim 1, wherein: a first air pipe hole (102) which is symmetrically distributed is formed in one side, far away from the L-shaped side plate (13), of the sealing box (12), and the first air pipe hole (102) corresponds to the second air pipe hole (1271).

5. The fuel cell air tightness detection device according to claim 1, wherein: the top ends of the first fixing plate (122) and the second fixing plate (1221) are fixedly provided with symmetrically distributed L-shaped fixing blocks (126), and the fuel cells (125) are contacted with the L-shaped fixing blocks (126).

6. The fuel cell air tightness detection device according to claim 1, wherein: the L-shaped side plate (13) is fixedly arranged on one side, close to the sealing boxes (12), of the third electric telescopic rod (3), a third sliding plate (31) is fixedly arranged at the driving end of the third electric telescopic rod (3), the bottom end of the third sliding plate (31) is slidably clamped on the top end of the clamping block (11), and one side, far away from the third electric telescopic rod (3), of the third sliding plate (31) is fixedly arranged on one side of the two sealing boxes (12).

7. The fuel cell air tightness detection device according to claim 1, wherein: one end of the L-shaped plate (121) far away from the second sliding plate (1241) is fixedly provided with a motor (22), and the driving end of the motor (22) is fixedly arranged at the end part of the threaded rod (21).

8. The fuel cell air tightness detection device according to claim 1, wherein: support legs (101) are fixedly arranged at four corners of the bottom end of the workbench (1).