Safe fuel cell testing device
By introducing protective covers and fire extinguishing tanks into the fuel cell testing device, the problem of fuel cells being prone to combustion and explosion during internal resistance testing is solved, and higher safety and automatic fire extinguishing function are achieved.
Patent Information
- Application Number
- CN202420671091.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-02
AI Technical Summary
Existing fuel cells are prone to combustion and explosion when conducting internal resistance tests, resulting in poor safety.
A safe fuel cell testing device is designed, including the main body of the battery internal resistance tester, control panel, test mount, protective cover, fire extinguishing tank and fire detector tube. Protective covers and fire extinguishing tanks are used to prevent fire from spreading and extinguishing fires, and fire detector tubes and nozzle components are used to automatically extinguish fires.
Through the design of protective covers and fire extinguishing tanks, safety during the test process is improved, fire spread is prevented and automatic fire extinguishing is achieved, significantly reducing the safety risks during fuel cell testing.
Smart Images
Figure CN222506526U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fuel cell testing, in particular to a safe fuel cell testing device. Background Art
[0002] A fuel cell is a chemical device that converts the chemical energy of a fuel directly into electrical energy. It is also called an electrochemical generator. It is the fourth power generation technology after hydroelectric power generation, thermal power generation and atomic power generation. A fuel cell is mainly composed of four parts, namely an anode, a cathode, an electrolyte and an external circuit. The principle of a fuel cell is an electrochemical device, and its composition is the same as that of a general battery. Its single cell is composed of two positive and negative electrodes (the negative electrode is the fuel electrode and the positive electrode is the oxidant electrode) and an electrolyte. For safety reasons, a battery internal resistance tester is required for safety testing before leaving the factory and during maintenance.
[0003] However, when conducting internal resistance tests on existing fuel cells, most of the batteries are exposed to the outside. The batteries are tested under the premise of being faulty, which is prone to combustion and explosion, which can easily injure people and lead to poor safety. Therefore, it does not meet the existing needs. In this regard, we propose a safe fuel cell testing device. Utility Model Content
[0004] The purpose of the utility model is to provide a safe fuel cell testing device to solve the problem that most of the existing fuel cells mentioned in the background technology are exposed to the outside when performing internal resistance tests, and the batteries are tested under the premise of being faulty, which is prone to combustion and explosion, easily injuring people, and resulting in poor safety.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A safe fuel cell testing device, comprising: a battery internal resistance tester body, a control panel is arranged at the front end of the battery internal resistance tester body, and a test mounting frame is arranged at the upper end of the battery internal resistance tester body;
[0006] Also includes:
[0007] A protective cover is arranged on one side of the test mounting frame, and one side of the protective cover is in an open form, and a transparent plate is arranged on the front end surface of the protective cover;
[0008] A fire extinguishing tank is arranged above the protective cover, a connecting assembly is arranged at the lower end of the fire extinguishing tank, a fire detection tube is arranged on the inner top surface of the protective cover, a nozzle assembly is arranged on one side of the fire detection tube, and one end of the nozzle assembly and the fire detection tube are both connected to the connecting assembly.
[0009] Preferably, a first clamping plate is provided at the front end of the test mounting frame, and the first clamping plate is fixedly connected to the test mounting frame by bolts, a second clamping plate is provided below the first clamping plate, and one end of the first clamping plate and the second clamping plate are both provided with a test metal head.
[0010] Preferably, a connecting block is provided on one side of the second clamping plate, limiting plates are provided on both sides of the connecting block, and the limiting plates and the connecting block are an integral structure, and a compression spring is provided at the lower end of the connecting block.
[0011] Preferably, an adjustment slot is provided on the front surface of the test mounting frame, a limiting slot is provided at one end of the adjustment slot, and the adjustment slot and the limiting slot are an integral structure with the test mounting frame.
[0012] Preferably, a force-bearing handle is welded on the other side of the second clamping plate, and the force-bearing handle is kept perpendicular to the second clamping plate.
[0013] Preferably, the front and rear surfaces of the protective cover are both provided with fixing plates, and the fixing plates are welded to the protective cover, the upper end of the fixing plates is provided with fixing bolts, and the fixing plates are fixedly connected to the main body of the battery internal resistance tester through the fixing bolts.
[0014] Preferably, a movable groove is provided on the upper surface of the main body of the battery internal resistance tester, and the test mounting frame moves laterally along the movable groove through a connecting block provided on the lower surface.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The utility model arranges a protective cover on one side of the test mounting frame, and arranges a fire extinguishing tank with a connecting assembly on the upper end of the protective cover. After the fuel cell is installed, the test mounting frame is moved to the inside of the protective cover, and the protective cover is relied on to achieve external protection. The connecting assembly is mainly composed of a container valve, a pressure gauge, a pipe joint and a fire detection pipe joint. The nozzle assembly and the fire detection pipe are respectively connected to the pipe joint and the fire detection pipe joint of the connecting assembly. When a fire occurs, the high temperature damages the fire detection pipe, the internal nitrogen is released, the pressure is reduced, the container valve is linked to start, and the fire extinguishing agent is transported from the fire extinguishing tank to the nozzle assembly for spraying, thereby extinguishing the fire, further improving safety.
[0017] 2. By arranging a compression spring at the lower end of the connecting block on one side of the second clamping plate, and arranging an adjustment groove with a limit groove on the front surface of the test mounting frame, the second clamping plate moves downward, and the compression spring contracts under force. After the fuel cell is placed, the fuel cell is squeezed by the resilience of the compression spring, thereby achieving a squeezing and fixing effect on the fuel cell together with the first clamping plate. Compared with the existing method of fixing with bolts, the length can be adjusted in time according to the size of the fuel cell, thereby improving flexibility and applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the right side structure of the protective cover of the utility model;
[0020] Figure 3 It is a left side structural schematic diagram of the second clamping plate of the utility model;
[0021] Figure 4 This is a schematic diagram of the internal cross-section of the first splint of the utility model viewed from above;
[0022] In the figure: 1. Battery internal resistance tester body; 2. Control panel; 3. Test mounting frame; 4. First clamping plate; 5. Second clamping plate; 6. Adjustment slot; 7. Protective cover; 8. Transparent plate; 9. Moving slot; 10. Fixing plate; 11. Fixing bolt; 12. Fire extinguisher; 13. Connecting assembly; 14. Fire detection tube; 15. Sprinkler assembly; 16. Connecting block; 17. Limiting plate; 18. Compression spring; 19. Force handle; 20. Test metal head; 21. Limiting slot. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0024] See also Figure 1-4 The utility model provides an embodiment: a safe fuel cell testing device, comprising: a battery internal resistance tester body 1, a control panel 2 is arranged at the front end of the battery internal resistance tester body 1, and a test mounting frame 3 is arranged at the upper end of the battery internal resistance tester body 1;
[0025] Also includes:
[0026] The protective cover 7 is arranged on one side of the test mounting frame 3, and one side of the protective cover 7 is in an open form. A transparent plate 8 is arranged on the front end surface of the protective cover 7. The transparent plate 8 and the protective cover 7 are preferably made of materials with good explosion-proof and fire-proof properties.
[0027] A fire extinguishing tank 12 is arranged above the protective cover 7, a connecting assembly 13 is arranged at the lower end of the fire extinguishing tank 12, a fire detection tube 14 is arranged on the inner top surface of the protective cover 7, a nozzle assembly 15 is arranged on one side of the fire detection tube 14, and one end of the nozzle assembly 15 and the fire detection tube 14 are both connected to the connecting assembly 13.
[0028] The protective cover 7 is used to provide external protection for the test mounting frame 3. The connecting assembly 13 is mainly composed of a container valve, a pressure gauge, a pipe joint and a fire detection pipe joint. Among them, the air inlet end of the container valve is interconnected with the fire extinguishing tank 12; the fire extinguishing agent outlet end of the container valve is provided with the above-mentioned pipe joint, and the nozzle assembly 15 is interconnected with the pipe joint; the pressure gauge interface of the container valve is connected with a pressure gauge; the control end of the container valve is provided with the above-mentioned fire detection pipe joint, and the fire detection pipe 14 is connected with the fire detection pipe joint. When a fire occurs, the high temperature damages the fire detection pipe 14, the internal nitrogen of the fire detection pipe 14 is released, the pressure is reduced, and then the container valve is linked and opened, and the fire extinguishing agent is transported from the fire extinguishing tank 12 to the nozzle assembly 15 for spraying, thereby extinguishing the fire and further improving safety.
[0029] See also Figure 1 and Figure 3 A first clamping plate 4 is provided at the front end of the test mounting frame 3, and the first clamping plate 4 is fixedly connected to the test mounting frame 3 by bolts. A second clamping plate 5 is provided below the first clamping plate 4 so as to be movable up and down, and a test metal head 20 is provided at one end of each of the first clamping plate 4 and the second clamping plate 5.
[0030] See also Figure 1 , Figure 3 and Figure 4 Specifically, a connecting block 16 is provided on one side of the second clamping plate 5, and a limiting plate 17 is provided on both sides of the connecting block 16, and the limiting plate 17 is an integral structure with the two connecting blocks 16 on both sides. An adjustment slot 6 is provided on the front surface of the test mounting frame 3, and a limiting slot 21 is provided at one end of the adjustment slot 6, and the adjustment slot 6, the limiting slot 21 and the test mounting frame 3 are all an integral structure. The connecting block 16 is movably arranged inside the adjustment slot 6, and the limiting plates 17 on both sides are movably embedded inside the limiting slot 21, so that the second clamping plate 5 can be movably arranged on the front end surface of the test mounting frame 3. And a compression spring 18 for moving the connecting block 16 upward is provided at the lower end of the connecting block 16. Specifically, the upper end of the compression spring 18 is fixedly connected to the lower end of the connecting block 16, and the lower end of the compression spring 18 is fixedly connected to the lower end of the adjustment slot 6. The compression spring 18 contracts under force. After the fuel cell is placed, the second clamp 5 is moved up and squeezed by the resilience of the compression spring 18. The second clamp 5 cooperates with the first clamp 4 to squeeze and fix the fuel cell up and down. Compared with the existing use of bolts to fix, the length can be adjusted in time according to the size of the fuel cell, which improves flexibility and applicability. The other ends of the two test metal heads 20 are electrically connected to the detection interface of the battery internal resistance tester body through wires, which are used to detect the above-mentioned fuel cell clamped and electrically connected by the device. Among them, the battery internal resistance tester body belongs to the prior art, and those skilled in the art can directly purchase and use the current battery internal resistance tester according to the battery detection project, which will not be repeated here.
[0031] See also Figure 3 A force-bearing handle 19 is welded on the other side of the second clamping plate 5, and the force-bearing handle 19 is kept perpendicular to the second clamping plate 5, so as to facilitate the application of force to drive the second clamping plate 5 to move up and down.
[0032] See also Figure 1 and Figure 2 The front and rear surfaces of the protective cover 7 are both provided with fixing plates 10, and the fixing plates 10 are welded to the protective cover 7. The upper end of the fixing plates 10 is provided with fixing bolts 11, and the fixing plates 10 are fixedly connected to the battery internal resistance tester body 1 through the fixing bolts 11, so that the protective cover 7 is fixed and removable and replaceable.
[0033] See also Figure 1 The upper surface of the main body 1 of the battery internal resistance tester is provided with a movable groove 9, and the movable groove 9 is equipped with a connecting block that can be moved left and right. The specific structure can refer to the specific structure of the connecting block 16 and the adjustment groove 6 cooperating with each other, which will not be repeated here. The lower surface of the test mounting frame 3 is fixedly connected to the above-mentioned connecting block by means of screws or the like. The test mounting frame 3 moves laterally along the movable groove 9 through the connecting block fixed on the lower surface, so that the test mounting frame 3 can move laterally in and out of the protective cover 7, which is convenient for installing and removing the fuel cell.
[0034] Working principle: When in use, the protective cover 7 is fixed to the main body 1 of the battery internal resistance tester by means of the fixing plate 10 and the external fixing bolts 11, and the movable groove 9 is sleeved inside the protective cover 7. The test mounting frame 3 moves laterally along the movable groove 9 through the connecting block arranged on the lower surface, moves out of the protective cover 7, and places the fuel cell to be tested between the first clamping plate 4 and the second clamping plate 5. The positive and negative poles correspond to the test metal heads of the first clamping plate 4 and the second clamping plate 5 respectively. Press the force handle 19 downward to drive the second clamping plate 5 to move downward along the adjustment groove 6. When moving, the limit plate 17 moves along the limit groove 21 to prevent the second clamping plate 5 from falling and improve stability. The compression spring 18 is forced to shrink. After the fuel cell is placed, the resilience of the compression spring 18 is used to squeeze the fuel. The battery, thereby having a squeezing and fixing effect on the fuel cell with the first clamping plate 4, compared with the existing use of bolts to fix, the length can be adjusted in time according to the size of the fuel cell, thereby improving flexibility and applicability. After the fuel cell is installed, the test mounting frame 3 is moved to the inside of the protective cover 7, and the protective cover 7 is relied on to have an external protection effect. The connecting component 13 is mainly composed of a container valve, a pressure gauge, a pipe joint and a fire detection pipe joint. The nozzle assembly 15 and the fire detection pipe 14 are respectively connected to the pipe joint and the fire detection pipe joint of the connecting component 13. When a fire occurs, the high temperature damages the fire detection pipe 14, the internal nitrogen is released, the pressure is reduced, the container valve is started in linkage, and the fire extinguishing agent is transported from the fire extinguishing tank 12 to the nozzle assembly 15 for spraying, thereby extinguishing the fire and improving safety.
[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A safe fuel cell testing device, comprising a battery internal resistance tester body (1), a control panel (2) being arranged at the front end of the battery internal resistance tester body (1), and a test mounting frame (3) being arranged at the upper end of the battery internal resistance tester body (1); Features: Also includes: A protective cover (7) is arranged on one side of the test mounting frame (3), and one side of the protective cover (7) is in an open form, and a transparent plate (8) is arranged on the front end surface of the protective cover (7); A fire extinguishing tank (12) is arranged above the protective cover (7), a connecting assembly (13) is arranged at the lower end of the fire extinguishing tank (12), a fire detection tube (14) is arranged on the inner top surface of the protective cover (7), a nozzle assembly (15) is arranged on one side of the fire detection tube (14), and one end of the nozzle assembly (15) and the fire detection tube (14) are both connected to the connecting assembly (13).
2. A safe fuel cell testing device according to claim 1, characterized in that: A first clamping plate (4) is provided at the front end of the test mounting frame (3), and the first clamping plate (4) is fixedly connected to the test mounting frame (3) by means of bolts; a second clamping plate (5) is provided below the first clamping plate (4); and a test metal head (20) is provided at one end of each of the first clamping plate (4) and the second clamping plate (5).
3. A safe fuel cell testing device according to claim 2, characterized in that: A connecting block (16) is provided on one side of the second clamping plate (5), and limiting plates (17) are provided on both sides of the connecting block (16). The limiting plates (17) and the connecting block (16) are an integral structure, and a compression spring (18) is provided at the lower end of the connecting block (16).
4. A safe fuel cell testing device according to claim 1, characterized in that: The front surface of the test mounting frame (3) is provided with an adjustment slot (6), one end of the adjustment slot (6) is provided with a limit slot (21), and the adjustment slot (6) and the limit slot (21) are all integral structures with the test mounting frame (3).
5. A safe fuel cell testing device according to claim 2, characterized in that: A force-bearing handle (19) is welded to the other side of the second clamping plate (5), and the force-bearing handle (19) is kept perpendicular to the second clamping plate (5).
6. A safe fuel cell testing device according to claim 1, characterized in that: The front and rear surfaces of the protective cover (7) are both provided with fixing plates (10), and the fixing plates (10) are welded to the protective cover (7), and the upper end of the fixing plates (10) is provided with fixing bolts (11), and the fixing plates (10) are fixedly connected to the battery internal resistance tester body (1) via the fixing bolts (11).
7. A safe fuel cell testing device according to claim 1, characterized in that: The upper surface of the battery internal resistance tester body (1) is provided with a moving groove (9), and the test mounting frame (3) moves laterally along the moving groove (9) via a connecting block provided on the lower surface.