Aluminum alloy casting mold for hydrogen energy battery stack

Abstract

The utility model discloses an aluminum alloy casting die for a hydrogen energy battery stack, which comprises a lower die holder, and a heat conducting plate is fixedly mounted on the bottom surface of the lower die holder. Through cooperation of the heated column, the coil, the heat conduction plate, the preheating plate and the lower die base, the whole coil is high-frequency induction heating equipment, the temperature of the whole heated column can be rapidly increased through a magnetic field, and after the temperature of the heated column is increased, high temperature can be transmitted to the lower die base through the preheating plate and the heat conduction plate; when casting is carried out again, the heat conduction plate and the lower die base can move upwards together, then the lower die base is independently cooled, the output power of the coil is reduced, when casting is carried out again, the heat conduction plate can be moved back to the original position again, and the output power of the coil is recovered before the heat conduction plate returns to the original position, so that the preheating plate can still keep high temperature. And therefore, the preheating time is shortened, and the problem that long time is wasted due to repeated preheating is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy casting, in particular to an aluminum alloy casting mold for a hydrogen energy battery stack. Background Art

[0002] The aluminum alloy of hydrogen battery stack mainly refers to the aluminum alloy materials used in hydrogen fuel cells. These aluminum alloys play an important role in batteries, such as being used as battery shells and brackets. Among them, 6061 aluminum alloy and 7A04 aluminum alloy are two common aluminum alloys used in hydrogen battery stacks.

[0003] When casting aluminum alloys, attention should be paid to the casting speed, which has a direct impact on the ingot liquid cavity and temperature gradient. If the casting speed is too fast, the ingot liquid cavity and temperature gradient may increase, thereby generating large shrinkage stress at the bottom of the liquid cavity and increasing the probability of ingot thermal cracks. Therefore, the casting speed needs to be properly controlled.

[0004] The conventional casting speed of aluminum alloy mainly wastes time in the heating stage, because the casting liquid needs to have a higher temperature when entering the mold to reduce the premature solidification of the casting liquid, but the heating needs to be turned off and cooled during cooling, so repeated preheating will waste a long time. In order to solve this technical problem, the utility model proposes a hydrogen energy battery stack aluminum alloy casting mold. Utility Model Content

[0005] The main purpose of the utility model is to provide an aluminum alloy casting mold for a hydrogen energy battery stack, which can effectively solve the problems mentioned in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A hydrogen energy battery stack aluminum alloy casting mold comprises a lower mold base, a heat conducting plate is fixedly installed on the bottom surface of the lower mold base, a preheating plate is arranged below the heat conducting plate, a heating column is fixedly installed on the bottom surface of the preheating plate, and a coil is sleeved on the outer surface of the heating column.

[0008] Preferably, the outer surface of the preheating plate and the outer surface of the heat conducting plate are in close contact with each other, the bottom surface of the heat conducting plate is provided with a mesh protrusion, the inner side of the preheating plate is provided with a mesh depression, and the outer surface of the protrusion and the outer surface of the depression are in close contact with each other.

[0009] Preferably, a heat insulating sleeve and a mounting ring are fixedly mounted on the bottom surface of the preheating plate, the coil is mounted on the outer surface of the mounting ring, and a load-bearing rod is fixedly mounted on the bottom surface of the preheating plate.

[0010] Preferably, a heat-insulating layer is fixedly installed on the bottom surface of the load-bearing rod, a reserved groove is opened on the inner side of the heat-insulating layer, a heat-insulating board is fixedly installed on the outer surface of the heat-insulating layer located in the reserved groove, a force-bearing rod is fixedly installed on the bottom surface of the heat-insulating layer, and a load-bearing frame is fixedly installed on the bottom end of the force-bearing rod.

[0011] Preferably, a servo motor is installed on the outer surface of the load-bearing frame, a synchronous wheel 1 is fixedly installed on the output end of the servo motor, and a synchronous wheel 2 is rotatably connected to the outer surface of the load-bearing frame. The synchronous wheel 1 is mutually transmitted with the synchronous wheel 2 through a synchronous belt.

[0012] Preferably, a sliding rod is fixedly mounted on the outer surface of the load-bearing frame, a threaded rod is rotatably connected to the inner wall of the load-bearing frame, and the bottom end of the threaded rod is fixedly mounted to the outer surface of the second synchronous wheel.

[0013] Preferably, a limit plate is fixedly installed on the top of the sliding rod, the bottom surface of the limit plate is rotatably connected to the top of the threaded rod, the outer surface of the threaded rod is threadedly connected to a threaded sleeve, the outer surface of the sliding rod is slidably connected to a sliding sleeve, the outer surface of the sliding sleeve and the outer surface of the threaded sleeve are both fixedly installed with a connecting frame, and the outer surface of the connecting frame and the outer surface of the heat conducting plate are fixedly installed.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, through the cooperation between the heated column, the coil, the heat conducting plate, the preheating plate and the lower die seat, the coil as a whole is a high-frequency induction heating device, which can use the magnetic field to quickly increase the temperature of the heated column as a whole. After the temperature of the heated column rises, the high temperature can be transferred to the lower die seat through the preheating plate and the heat conducting plate. When the casting liquid is filled, the heat conducting plate can be moved upward together with the lower die seat, and then the lower die seat is cooled separately. During this period, the output power of the coil decreases. When casting is performed again, the heat conducting plate can be moved back to its original position, and before returning to its original position, the output power of the coil is restored, so that the preheating plate can still maintain a high temperature, thereby reducing the preheating time and solving the problem that repeated preheating will waste a long time.

[0016] In the utility model, through the coordination between the preheating plate, the heat conducting plate, the protrusions and the depressions, the mesh protrusions and the mesh depressions can increase the contact area between the preheating plate and the heat conducting plate, and the preheating plate and the heat conducting plate are made of copper as a whole, thereby maintaining a high heat transfer efficiency and further reducing the preheating time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front perspective schematic diagram of the entirety of the aluminum alloy casting mold for the hydrogen energy battery stack of the utility model;

[0018] Figure 2This is a three-dimensional schematic diagram of the overall bottom surface of the aluminum alloy casting mold for the hydrogen energy battery stack of the utility model;

[0019] Figure 3 The utility model is a hydrogen energy battery stack aluminum alloy casting mold Figure 2 A is an enlarged schematic diagram of the structure;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the heat insulation sleeve of the aluminum alloy casting mold for the hydrogen energy battery stack of the utility model;

[0021] Figure 5 It is a schematic diagram of the explosion structure of the preheating plate and the heat conducting plate of the aluminum alloy casting mold for the hydrogen energy battery stack of the utility model.

[0022] In the figure: 1. lower die base; 2. heat conduction plate; 3. preheating plate; 4. heating column; 5. coil; 6. protrusion; 7. depression; 8. thermal insulation sleeve; 9. mounting ring; 10. load-bearing rod; 11. thermal insulation layer; 12. reserved groove; 13. thermal insulation plate; 14. force-bearing rod; 15. load-bearing frame; 16. servo motor; 17. synchronous wheel one; 18. synchronous wheel two; 19. sliding rod; 20. threaded rod; 21. limit plate; 22. threaded sleeve; 23. sliding sleeve; 24. connecting frame. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-5 As shown, the aluminum alloy casting mold for a hydrogen energy battery stack includes a lower mold base 1, a heat conducting plate 2 is fixedly installed on the bottom surface of the lower mold base 1, a preheating plate 3 is arranged below the heat conducting plate 2, a heated column 4 is fixedly installed on the bottom surface of the preheating plate 3, and a coil 5 is sleeved on the outer surface of the heated column 4. The coil 5 is a high-frequency induction heating device as a whole, which can use the magnetic field to quickly increase the temperature of the entire heated column 4. After the temperature of the heated column 4 rises, the high temperature can be transferred to the lower mold base 1 through the preheating plate 3 and the heat conducting plate 2. When the casting liquid is filled, the heat conducting plate 2 can be moved upward together with the lower mold base 1, and then the lower mold base 1 is cooled separately. During this period, the output power of the coil 5 decreases. When casting is performed again, the heat conducting plate 2 can be moved back to its original position, and before returning to its original position, the output power of the coil 5 is restored, so that the preheating plate 3 can still maintain a high temperature, thereby reducing the preheating time and solving the problem that repeated preheating will waste a long time.

[0025] The outer surface of the preheating plate 3 and the outer surface of the heat conducting plate 2 are in close contact with each other. The bottom surface of the heat conducting plate 2 is provided with a mesh protrusion 6, and the inner side of the preheating plate 3 is provided with a mesh depression 7. The outer surface of the protrusion 6 and the outer surface of the depression 7 are in close contact with each other. The mesh protrusion 6 and the mesh depression 7 can increase the contact area between the preheating plate 3 and the heat conducting plate 2, and the preheating plate 3 and the heat conducting plate 2 are made of copper as a whole, thereby maintaining a high heat transfer efficiency and further reducing the preheating time.

[0026] The bottom surface of the preheating plate 3 is fixedly mounted with a heat insulating sleeve 8 and a mounting ring 9, the coil 5 is mounted on the outer surface of the mounting ring 9, and a load-bearing rod 10 is fixedly mounted on the bottom surface of the preheating plate 3. The heat insulating sleeve 8 itself is made of asbestos and can isolate high temperature, and the mounting ring 9 can provide support for the coil 5, making the device more stable when in use.

[0027] A heat-insulating layer 11 is fixedly installed on the bottom surface of the load-bearing rod 10, a reserved groove 12 is opened on the inner side of the heat-insulating layer 11, a heat-insulating board 13 is fixedly installed on the outer surface of the heat-insulating layer 11 located in the reserved groove 12, a force-bearing rod 14 is fixedly installed on the bottom surface of the heat-insulating layer 11, and a load-bearing frame 15 is fixedly installed on the bottom end of the force-bearing rod 14. The heat-insulating board 13 can reduce the contact area between the two heat-insulating layers 11, thereby isolating most of the heat transferred from the load-bearing rod 10, thereby realizing the function of blocking heat.

[0028] A servo motor 16 is installed on the outer surface of the load-bearing frame 15, and a synchronous wheel 17 is fixedly installed on the output end of the servo motor 16. The outer surface of the load-bearing frame 15 is rotatably connected to a synchronous wheel 2 18. The synchronous wheel 17 and the synchronous wheel 2 18 are mutually transmitted through a synchronous belt. The load-bearing frame 15 can provide support for the servo motor 16, and the servo motor 16 can drive the synchronous wheel 17 to rotate. When the synchronous wheel 17 rotates, it can drive the two synchronous wheels to rotate in the same direction and speed through the synchronous belt.

[0029] A sliding rod 19 is fixedly installed on the outer surface of the load-bearing frame 15, and a threaded rod 20 is rotatably connected to the inner wall of the load-bearing frame 15. The bottom end of the threaded rod 20 is fixedly installed on the outer surface of the synchronous wheel 18. The synchronous wheel 18 can drive the threaded rod 20 to rotate when rotating. A bearing is installed inside the load-bearing frame 15, and the bearing is sleeved on the outer surface of the threaded rod 20, so that the threaded rod 20 is more flexible when rotating.

[0030] A limit plate 21 is fixedly installed on the top of the slide rod 19, and the bottom surface of the limit plate 21 is rotatably connected to the top of the threaded rod 20. The outer surface of the threaded rod 20 is threadedly connected with a threaded sleeve 22, and the outer surface of the slide rod 19 is slidably connected with a sliding sleeve 23. The outer surface of the sliding sleeve 23 and the outer surface of the threaded sleeve 22 are both fixedly installed with a connecting frame 24. The outer surface of the connecting frame 24 and the outer surface of the heat conducting plate 2 are fixedly installed. The limit plate 21 can provide a maximum limit for the movement of the connecting frame 24. When the threaded rod 20 rotates, it can drive the connecting frame 24 and the heat conducting plate 2 to move upward or downward by pushing the threaded sleeve 22. The sliding sleeve 23 can maintain the fixed moving direction given by the slide rod 19 when the connecting frame 24 moves, thereby reducing the occurrence of misalignment or tilt during movement.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. Aluminum alloy casting mold for hydrogen energy battery stack, characterized by: The invention comprises a lower die base (1), a heat conducting plate (2) being fixedly mounted on the bottom surface of the lower die base (1), a preheating plate (3) being arranged below the heat conducting plate (2), a heating column (4) being fixedly mounted on the bottom surface of the preheating plate (3), and a coil (5) being sleeved on the outer surface of the heating column (4).

2. The hydrogen energy battery stack aluminum alloy casting mold according to claim 1, characterized in that: The outer surface of the preheating plate (3) and the outer surface of the heat conducting plate (2) are in close contact with each other, the bottom surface of the heat conducting plate (2) is provided with a mesh protrusion (6), the inner side of the preheating plate (3) is provided with a mesh depression (7), and the outer surface of the protrusion (6) and the outer surface of the depression (7) are in close contact with each other.

3. The hydrogen energy battery stack aluminum alloy casting mold according to claim 1, characterized in that: A heat insulating sleeve (8) and a mounting ring (9) are fixedly mounted on the bottom surface of the preheating plate (3); the coil (5) is mounted on the outer surface of the mounting ring (9); and a load-bearing rod (10) is fixedly mounted on the bottom surface of the preheating plate (3).

4. The hydrogen energy battery stack aluminum alloy casting mold according to claim 3, characterized in that: A heat insulating layer (11) is fixedly mounted on the bottom surface of the load-bearing rod (10), a reserved groove (12) is provided on the inner side of the heat insulating layer (11), a heat insulating board (13) is fixedly mounted on the outer surface of the heat insulating layer (11) located in the reserved groove (12), a force-bearing rod (14) is fixedly mounted on the bottom surface of the heat insulating layer (11), and a load-bearing frame (15) is fixedly mounted on the bottom end of the force-bearing rod (14).

5. The hydrogen energy battery stack aluminum alloy casting mold according to claim 4, characterized in that: A servo motor (16) is installed on the outer surface of the load-bearing frame (15), a synchronous wheel (17) is fixedly installed on the output end of the servo motor (16), and a synchronous wheel (18) is rotatably connected to the outer surface of the load-bearing frame (15), and the synchronous wheel (17) and the synchronous wheel (18) are mutually driven through a synchronous belt.

6. The hydrogen energy battery stack aluminum alloy casting mold according to claim 5, characterized in that: A sliding rod (19) is fixedly mounted on the outer surface of the load-bearing frame (15), and a threaded rod (20) is rotatably connected to the inner wall of the load-bearing frame (15), wherein the bottom end of the threaded rod (20) is fixedly mounted on the outer surface of the second synchronous wheel (18).

7. The aluminum alloy casting mold for hydrogen energy battery stack according to claim 6, characterized in that: A limit plate (21) is fixedly mounted on the top of the slide rod (19); the bottom surface of the limit plate (21) is rotatably connected to the top of the threaded rod (20); the outer surface of the threaded rod (20) is threadedly connected to a threaded sleeve (22); the outer surface of the slide rod (19) is slidably connected to a slide sleeve (23); the outer surface of the slide sleeve (23) and the outer surface of the threaded sleeve (22) are both fixedly mounted with a connecting frame (24); the outer surface of the connecting frame (24) is fixedly mounted to the outer surface of the heat conducting plate (2).

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