Fuel cell stack pressing device

Abstract

The utility model relates to the technical field of battery production, and discloses a fuel cell stack pressing device which comprises a supporting base, the top end of the supporting base is fixedly connected with a pressing table, the two sides of the top end of the supporting base are fixedly connected with supporting columns, and the top ends of the supporting columns are fixedly connected with a top plate. A hydraulic cylinder is fixedly connected to the bottom end of the top plate, a pressing plate is arranged at the bottom end of the hydraulic cylinder, vacuum suction cup assemblies are installed on the two sides of the top end of the pressing plate, and vacuum suction cup bodies are installed on the two sides of the bottom end of the pressing plate. According to the fuel cell stack pressing device, when a stack is pushed downwards through a hydraulic cylinder, a supporting plate is stressed to move downwards, the supporting plate is pressed on a pressure sensor, the pressure sensor can detect the downward pressing force, a pressure control assembly can display the current pressing force, and the pressure control assembly can control the maximum downward pressing value of the hydraulic cylinder; the safety and the stability of compression processing are improved, and the problem of damage to the galvanic pile caused by excessive compression is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a fuel cell stack pressing device. Background Art

[0002] A fuel cell is an electrochemical device that can effectively control the chemical reaction between fuel and oxidant and directly convert the chemical energy therein into electrical energy. It is an energy converter that converts the chemical energy in the fuel into electrical energy. A fuel cell stack is a battery stack composed of multiple fuel cells. During the battery production process, a pressing device is required to press the battery stack.

[0003] After searching, it was found that common fuel cell stack pressing equipment uses hydraulic cylinders to press the battery, but it is inconvenient to detect the pressing force during the pressing process. Once the problem of excessive pressing occurs, the fuel cell stack is easily damaged, thereby increasing the cost of battery processing. Moreover, when the fuel cell stack cannot be limited during pressing, the battery stack will shift, affecting the processing efficiency.

[0004] There is an urgent need for a fuel cell stack compression device to solve the technical defects raised in the above technology. Utility Model Content

[0005] The purpose of the utility model is to provide a fuel cell stack pressing device to solve the problem of damage to the fuel cell stack caused by excessive pressing mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fuel cell stack pressing device comprises a support base, the top of the support base is fixedly connected with a pressing platform, the two sides of the top of the support base are fixedly connected with support columns, the top of the support column is fixedly connected with a top plate, the bottom of the top plate is fixedly connected with a hydraulic cylinder, the bottom end of the hydraulic cylinder is provided with a pressing plate, the two sides of the top of the pressing plate are installed with a vacuum suction cup assembly, the two sides of the bottom end of the pressing plate are installed with a vacuum suction cup body, a clamping cylinder is installed on one side of the support column, the output end of the clamping cylinder is fixedly connected with a mounting seat, a clamping plate is installed on one side of the mounting seat, and the two ends of one side of the clamping plate are fixedly connected with side plates, a reserved groove is provided on the top of the pressing platform, a support plate is provided inside the reserved groove, a pressure sensor is installed at the bottom end of the reserved groove, and a pressure control assembly is installed on the other side of the support column.

[0007] Preferably, a connecting line is provided on one side of the pressing platform, and the connecting line is respectively connected to the pressure sensor and the pressure control component.

[0008] Preferably, both sides of the support plate are fixedly connected with limiting sliders, both sides of the reserved groove are fixedly connected with limiting slideways, and the limiting sliders are embedded in the outside of the limiting slideways in a sliding connection.

[0009] Preferably, the output end of the hydraulic cylinder is fixedly connected with a mounting flange, and the mounting flange is fixed to the clamping plate by bolts.

[0010] Preferably, a connecting hole is installed at the output end of the vacuum suction cup assembly, and the top end of the vacuum suction cup body is installed inside the connecting hole.

[0011] Preferably, a mounting block is fixedly connected to one side of the clamping plate, two sets of limiting rods are movably connected to one side of one end of the mounting seat, and a limiting groove is fixedly connected to the other side of one end of the mounting seat.

[0012] Furthermore, the installation block is embedded in the interior of the installation seat, and one side of the limiting rod is embedded in the interior of the limiting groove.

[0013] Preferably, two groups of pressure sensors are provided, and the bottom end of the support plate is in contact with the pressure sensors.

[0014] Compared with the prior art, the utility model has the beneficial effects that: the fuel cell stack pressing device not only realizes the function of facilitating the detection of the pressing strength, realizes the function of facilitating stable pressing, but also realizes the function of facilitating flexible clamping and limiting.

[0015] (1) A pressing platform, a support plate, a pressure sensor, a pressure control component and a connecting line are provided, and the battery stack is placed on the support plate on the top of the pressing platform. When the hydraulic cylinder pushes the battery stack downward, the support plate is forced to move downward, and the limit sliders on both sides of the support plate slide on the limit slideway. The support plate is pressed on the pressure sensor, and the pressure sensor can detect the downward pressure. The pressure control component can display the current pressing force, and the pressure control component can control the maximum downward pressure of the hydraulic cylinder. This structure realizes the function of facilitating the detection of the pressing force, thereby improving the safety and stability of the pressing process;

[0016] (2) By providing a clamping plate, a hydraulic cylinder, a vacuum suction cup assembly, a vacuum suction cup body and a connecting hole, when processing a fuel cell, the bottom of the stack is first installed, and then the stack is placed on the clamping device, and the plate installed on the top of the stack is installed on the bottom of the clamping plate. The vacuum suction cup body at the bottom of the clamping plate adsorbs and clamps it, and then the hydraulic cylinder pushes the plate to clamp the stack and install it on the electric pusher. This structure realizes the function of facilitating stable clamping;

[0017] (3) By providing a clamping cylinder, a clamping plate, a side plate, a mounting seat, a mounting block, a limiting rod and a limiting groove, the fuel cell stack is placed on the support plate, and then the pressing plate can press the stack. During the pressing process, the corresponding clamping plate is first installed on the mounting seat, and the mounting block on one side of the clamping plate is inserted into the mounting seat. Then, the limiting rod is used to limit and fix it. Subsequently, the clamping cylinder pushes the clamping plate to limit the stack to avoid displacement of the stack during pressing. This structure realizes the functions of flexible clamping and stable pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 This is a front view structural diagram of the clamping plate of the utility model;

[0020] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a front view structural schematic diagram of the clamping plate of the utility model.

[0022] In the figure: 1. Support base; 2. Clamping table; 3. Clamping cylinder; 4. Clamping plate; 5. Clamping plate; 6. Hydraulic cylinder; 7. Support column; 8. Top plate; 9. Mounting flange; 10. Vacuum suction cup assembly; 11. Vacuum suction cup body; 12. Support plate; 13. Reserved groove; 14. Pressure sensor; 15. Side plate; 16. Mounting seat; 17. Pressure control assembly; 18. Connecting line; 19. Connecting hole; 20. Limit slide; 21. Limit slider; 22. Mounting block; 23. Limit rod; 24. Limit groove. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1: Please refer to Figure 1-4, a fuel cell stack pressing device, comprising a support base 1, a pressing platform 2 is fixedly connected to the top of the support base 1, support columns 7 are fixedly connected to both sides of the top of the support base 1, a top plate 8 is fixedly connected to the top of the support column 7, a hydraulic cylinder 6 is fixedly connected to the bottom end of the top plate 8, a pressing plate 5 is arranged at the bottom end of the hydraulic cylinder 6, a vacuum suction cup assembly 10 is installed on both sides of the top of the pressing plate 5, a vacuum suction cup body 11 is installed on both sides of the bottom end of the pressing plate 5, a clamping cylinder 3 is installed on one side of the support column 7, a mounting seat 16 is fixedly connected to the output end of the clamping cylinder 3, a clamping plate 4 is installed on one side of the mounting seat 16, side plates 15 are fixedly connected to both ends of one side of the clamping plate 4, a reserved groove 13 is arranged at the top of the pressing platform 2, a support plate 12 is arranged inside the reserved groove 13, a pressure sensor 14 is installed at the bottom end of the reserved groove 13, and a pressure control assembly 17 is installed on the other side of the support column 7;

[0025] A connecting line 18 is provided on one side of the pressing table 2, and the connecting line 18 is respectively connected to the pressure sensor 14 and the pressure control component 17. The two sides of the support plate 12 are fixedly connected to the limit slider 21, and the two sides inside the reserved groove 13 are fixedly connected to the limit slide 20. The limit slider 21 is embedded in the outside of the limit slide 20 in a sliding connection. Two groups of pressure sensors 14 are provided, and the bottom end of the support plate 12 is in contact with the pressure sensor 14;

[0026] Specifically, Figure 1 and Figure 3 As shown, when the hydraulic cylinder 6 pushes the battery stack downward, the support plate 12 is forced to move downward, and the limit sliders 21 on both sides of the support plate 12 slide on the limit slide 20. The support plate 12 is pressed on the pressure sensor 14. The pressure sensor 14 can detect the downward pressure, and the pressure control component 17 can display the current pressing force. The pressure control component 17 can control the maximum downward pressure of the hydraulic cylinder 6.

[0027] Embodiment 2: The output end of the hydraulic cylinder 6 is fixedly connected with a mounting flange 9, the mounting flange 9 is fixed to the clamping plate 5 by bolts, the output end of the vacuum suction cup assembly 10 is installed with a connecting hole 19, and the top end of the vacuum suction cup body 11 is installed inside the connecting hole 19;

[0028] Specifically, Figure 1 and Figure 2 As shown, the bottom of the battery stack is installed first, and then the battery stack is placed on the pressing device, and the plate installed on the top of the battery stack is installed on the bottom of the pressing plate 5. The vacuum suction cup body 11 at the bottom of the pressing plate 5 adsorbs and clamps it, and then the hydraulic cylinder 6 pushes the plate to press the battery stack and install it on the electric pusher.

[0029] Embodiment 3: A mounting block 22 is fixedly connected to one side of the clamping plate 4, two sets of limiting rods 23 are movably connected to one side of one end of the mounting seat 16, and a limiting groove 24 is fixedly connected to the other side of one end of the mounting seat 16. The mounting block 22 is embedded in the interior of the mounting seat 16, and one side of the limiting rod 23 is embedded in the interior of the limiting groove 24;

[0030] Specifically, Figure 1 and Figure 4 As shown, before pressing, the corresponding clamping plate 4 is first installed on the mounting seat 16, the mounting block 22 on one side of the clamping plate 4 is inserted into the inside of the mounting seat 16, and then the limiting rod 23 is used to limit and fix it, and then the clamping cylinder 3 pushes the clamping plate 4 to limit the battery stack to avoid displacement of the battery stack during pressing.

[0031] Working principle: When the utility model is used, the bottom of the battery stack is installed first, and then the battery stack is placed on the pressing device, and the plate installed on the top of the battery stack is installed at the bottom of the pressing plate 5. The vacuum suction cup body 11 at the bottom of the pressing plate 5 adsorbs and clamps it. During the pressing, the corresponding clamping plate 4 is first installed on the mounting seat 16, and the mounting block 22 on one side of the clamping plate 4 is inserted into the inside of the mounting seat 16, and then the limiting rod 23 is used to limit and fix it, and then the clamping cylinder 3 pushes the clamping plate 4 to limit the battery stack to avoid The battery stack is shifted, and then the hydraulic cylinder 6 pushes the plate to press the battery stack and install it on the electric pusher. When the hydraulic cylinder 6 pushes the battery stack downward, the support plate 12 is forced to move downward, and the limit sliders 21 on both sides of the support plate 12 slide on the limit slide 20. The support plate 12 is pressed on the pressure sensor 14. The pressure sensor 14 can detect the downward pressure, and the pressure control component 17 can display the current pressing force. The pressure control component 17 can control the maximum downward pressure of the hydraulic cylinder 6. This structure realizes the function of stable processing.

[0032] 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 fuel cell stack pressing device, comprising a support base (1), characterized in that: The top of the support base (1) is fixedly connected to a clamping platform (2), the two sides of the top of the support base (1) are fixedly connected to support columns (7), the top of the support column (7) is fixedly connected to a top plate (8), the bottom of the top plate (8) is fixedly connected to a hydraulic cylinder (6), the bottom of the hydraulic cylinder (6) is provided with a clamping plate (5), the two sides of the top of the clamping plate (5) are equipped with vacuum suction cup assemblies (10), the two sides of the bottom of the clamping plate (5) are equipped with vacuum suction cup bodies (11), and one side of the support column (7) is equipped with A clamping cylinder (3) is provided, the output end of the clamping cylinder (3) is fixedly connected to a mounting seat (16), a clamping plate (4) is installed on one side of the mounting seat (16), and two ends of one side of the clamping plate (4) are fixedly connected to side plates (15), a reserved groove (13) is provided at the top of the pressing platform (2), a support plate (12) is provided inside the reserved groove (13), a pressure sensor (14) is installed at the bottom end of the reserved groove (13), and a pressure control component (17) is installed on the other side of the support column (7).

2. A fuel cell stack pressing device according to claim 1, characterized in that: A connecting line (18) is provided on one side of the pressing platform (2), and the connecting line (18) is respectively connected to the pressure sensor (14) and the pressure control component (17).

3. A fuel cell stack pressing device according to claim 1, characterized in that: The two sides of the support plate (12) are fixedly connected to the limiting slide block (21), the two sides inside the reserved groove (13) are fixedly connected to the limiting slideway (20), and the limiting slide block (21) is embedded in the outside of the limiting slideway (20) in a sliding connection.

4. A fuel cell stack pressing device according to claim 1, characterized in that: The output end of the hydraulic cylinder (6) is fixedly connected to a mounting flange (9), and the mounting flange (9) is fixed to the clamping plate (5) by bolts.

5. A fuel cell stack pressing device according to claim 1, characterized in that: The output end of the vacuum suction cup assembly (10) is provided with a connection hole (19), and the top end of the vacuum suction cup body (11) is installed inside the connection hole (19).

6. A fuel cell stack pressing device according to claim 1, characterized in that: One side of the clamping plate (4) is fixedly connected to a mounting block (22), one side of one end of the mounting seat (16) is movably connected to two sets of limiting rods (23), and the other side of one end of the mounting seat (16) is fixedly connected to a limiting groove (24).

7. A fuel cell stack pressing device according to claim 6, characterized in that: The installation block (22) is embedded in the interior of the installation seat (16), and one side of the limiting rod (23) is embedded in the interior of the limiting groove (24).

8. A fuel cell stack pressing device according to claim 1, characterized in that: The pressure sensors (14) are provided in two groups, and the bottom end of the support plate (12) is in contact with the pressure sensors (14).

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