Automobile battery fixing assembly

Abstract

The utility model relates to the technical field of automobile battery fixing, and discloses an automobile battery fixing assembly, including a frame, a partition plate is fixedly connected inside the frame, a plurality of battery assemblies are arranged between the frame and the partition plate, fixing frames are arranged on both sides of the top of the frame, connecting assemblies are installed on both sides of the fixing frames, a serpentine tube 1 is fixedly connected to the bottom wall of the frame, a liquid inlet is fixedly connected to one end of the serpentine tube 1, a regulating tube is fixedly connected to the other end of the serpentine tube 1, a liquid outlet is fixedly connected to the side of the regulating tube away from the frame, a one-way valve is fixedly connected to the bottom of the liquid outlet, and a plurality of cooling fins are fixedly connected to the bottom of the frame. In the utility model, when the temperature of the battery inside the fixing assembly continues to rise, the heat dissipation efficiency will be improved, and when the temperature drops, it will slowly return to the original heat dissipation efficiency, thereby balancing the power consumption and efficiency of the water cooling system in the fixing assembly, which is more energy-saving and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile battery fixing, in particular to an automobile battery fixing assembly. Background Art

[0002] The car battery is one of the core components of the vehicle's electrical system. It must be firmly and reliably fixed to ensure that it does not move or shake during driving, thereby ensuring the safety and stability of the vehicle. Car battery fixing components are usually made of metal, plastic or composite materials. Their design and manufacturing need to consider the strength and corrosion resistance of the material as well as the complexity of the manufacturing process to meet the requirements of the automotive working environment.

[0003] At present, most of the car battery fixing components contain a structure for cooling when in use, which cooperates with the external frame of the fixing component to achieve all-round protection and fixation of the power battery. The cooling structure is connected to the car's own water cooling system. As the car starts, the car's water cooling system can be used to cool and protect the battery in the fixing component.

[0004] However, the cooling system in the fixed component is usually in a normally open state, and the heat dissipation efficiency is mostly stable and unchanged. This results in the water cooling system inside the fixed component still maintaining its original state when running under load or in high temperature weather, causing the battery temperature to continue to rise, affecting the stability of the battery working state. For this reason, an automotive battery fixing component is proposed. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides an automobile battery fixing assembly, aiming to improve the problem in the prior art that when operating under load or in high temperature weather, the water cooling system inside the fixing assembly still maintains its original working state, causing the battery temperature to continue to rise, affecting the stability of the battery working state.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A car battery fixing assembly comprises a frame, a partition plate is fixedly connected inside the frame, a plurality of battery assemblies are arranged between the frame and the partition plate, fixing frames are arranged on both sides of the top of the frame, connecting assemblies are installed on both sides of the fixing frames, a serpentine tube 1 is fixedly connected to the bottom wall of the frame, one end of the serpentine tube 1 is fixedly connected to a liquid inlet, the other end of the serpentine tube 1 is fixedly connected to a regulating tube, a side of the regulating tube away from the frame is fixedly connected to a liquid outlet pipe, a one-way valve is fixedly connected to the bottom of the liquid outlet pipe, a plurality of heat dissipation fins are fixedly connected to the bottom of the frame, a serpentine tube 2 is fixedly connected between the insides of the plurality of heat dissipation fins, one end of the serpentine tube 2 is connected to the inside of the regulating tube, the other end of the serpentine tube 2 is fixedly connected to a reflux pipe, the top of the reflux pipe is fixedly connected to the bottom of the one-way valve, a fixing ring is fixedly connected to the inside of the regulating tube, a movable rod is slidably connected to the middle of the fixing ring, an automatic adjusting assembly is installed at one end of the movable rod, a piston is fixedly connected to the other end of the movable rod, and a spring is arranged on the top of the piston.

[0008] As a further description of the above technical solution:

[0009] The connecting assembly includes a shell, the outer side of the shell is fixedly connected to the inside of the fixing frame, the inside of the shell is slidably connected with a lever, one side of the outer periphery of the lever is fixedly connected to a baffle, the other side of the outer periphery of the lever is sleeved with a compression spring, the compression spring is fixedly connected between the side of the baffle away from the frame and the inner wall of the shell, and the top of the shell is slidably connected with a clamping plate.

[0010] As a further description of the above technical solution:

[0011] The automatic adjustment component includes a sealing ring and paraffin. The middle part of the sealing ring is fixedly connected to the bottom end of the movable rod. The paraffin is arranged between the bottom of the sealing ring and the bottom wall of the adjustment tube. The outer periphery of the sealing ring is slidably connected to the inside of the adjustment tube.

[0012] As a further description of the above technical solution:

[0013] The outer side of the serpentine tube is located at the bottom of the battery assembly, the bottom of the fixing frame abuts against the top of the battery assembly, and a plurality of mounting ears are fixedly connected to the outer side of the frame.

[0014] As a further description of the above technical solution:

[0015] One end of the spring is fixedly connected to the top wall inside the regulating tube, and the other end of the spring is fixedly connected to the top of the piston.

[0016] As a further description of the above technical solution:

[0017] The outer periphery of the piston is slidably connected to the inside of the regulating tube, and the piston is located between the first serpentine tube and the second serpentine tube.

[0018] As a further description of the above technical solution:

[0019] The outer side of the baffle is slidably connected to the inside of the shell, and the shifting rod passes through the shell and is inserted into the inside of the frame.

[0020] As a further description of the above technical solution:

[0021] The bottom of the card plate is arranged on the top of the baffle plate, and the outer side of the card plate is arranged inside the fixing frame.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the volume of the paraffin increases accordingly by melting the paraffin under heat, thereby pushing the sealing ring to move and adjusting the position of the piston inside the adjusting tube, so that the cooling liquid after absorbing heat can be directly discharged through the liquid outlet pipe, or enter the inner part of the serpentine tube 2 for recirculation and cooling, so that when the battery temperature inside the fixed component continues to rise, the heat dissipation efficiency of the water cooling system can be automatically adjusted, the heat dissipation efficiency will be improved when the temperature rises, and the heat dissipation efficiency will slowly return to the original heat dissipation efficiency when the temperature drops, thereby balancing the power consumption and efficiency of the water cooling system in the fixed component, which is more energy-saving and efficient.

[0024] 2. In the utility model, the lever is pulled out to disengage it from the hole on the outside of the frame, and the fixing frame and the frame are in an unlocked state. When installing, the card plate only needs to be lifted, and the lever can be automatically inserted into the outside of the frame through the compression spring reset to fix the fixing frame and the frame, so that the automobile battery fixing assembly can realize convenient disassembly and assembly operations of the battery, and the fixing assembly can bring convenience to the operation of the maintenance worker when the battery is maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A stereoscopic diagram of a first viewing angle of a vehicle battery fixing assembly proposed by the utility model;

[0026] Figure 2 A stereoscopic diagram of a second viewing angle of a vehicle battery fixing assembly proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a serpentine tube of a car battery fixing assembly proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of a regulating tube of a car battery fixing assembly proposed by the utility model;

[0029] Figure 5 This is a sectional stereoscopic view of a connecting assembly of an automobile battery fixing assembly proposed by the utility model.

[0030] Legend:

[0031] 1. Frame; 2. Partition plate; 3. Battery assembly; 4. Fixing frame; 5. Serpentine tube 1; 6. Liquid inlet; 7. Adjusting tube; 8. Liquid outlet; 9. One-way valve; 10. Heat dissipation fins; 11. Serpentine tube 2; 12. Reflux pipe; 13. Movable rod; 14. Piston; 15. Sealing ring; 16. Spring; 17. Paraffin; 18. Shell; 19. Push rod; 20. Baffle; 21. Compression spring; 22. Clamp plate; 23. Mounting ear; 24. Fixing ring. DETAILED DESCRIPTION

[0032] 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.

[0033] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a car battery fixing assembly, including a frame 1, which is made of aluminum alloy, has sufficient structural strength and is light enough, and the surface of the frame 1 is sprayed with a corrosion-resistant coating, which can greatly extend the service life of the frame 1, and a corresponding sponge structure for buffering is installed inside. A partition plate 2 is fixedly connected inside the frame 1, and a plurality of battery assemblies 3 are arranged between the frame 1 and the partition plate 2. A fixing frame 4 is arranged on both sides of the top of the frame 1, and a connecting assembly is installed on both sides of the fixing frame 4. The inside of the frame 1 is divided into different installation areas by the partition plate 2, and the battery assemblies 3 are then installed in the frame 1 in different partitions, so that when one of the battery assemblies 3 has a short circuit and a fire, it will not quickly affect other battery assemblies 3, and at the same time, the battery assemblies 3 can be restricted and fixed inside the frame 1 in cooperation with the connecting assembly and the fixing frame 4.

[0034] Reference Figure 1 , Figure 3 and Figure 4The inner bottom wall of the frame 1 is fixedly connected with a serpentine tube 5, one end of the serpentine tube 5 is fixedly connected with a liquid inlet 6, the other end of the serpentine tube 5 is fixedly connected with a regulating tube 7, and the side of the regulating tube 7 away from the frame 1 is fixedly connected with a liquid outlet pipe 8. The coolant of the automobile water cooling system is sent into the serpentine tube 5 from the liquid inlet 6 through a pump and a pipeline. After the coolant enters the serpentine tube 5, the copper serpentine tube 5 will quickly absorb the heat emitted by the battery assembly 3 and transfer the heat to the coolant. After that, the coolant absorbs the heat and enters the liquid outlet pipe 8 through the regulating tube 7, and finally the coolant flows back to the automobile water cooling system for heat dissipation. A one-way valve 9 is fixedly connected to the bottom of the liquid outlet pipe 8, a plurality of heat sink fins 10 are fixedly connected to the bottom of the frame 1, a serpentine tube 11 is fixedly connected between the multiple heat sink fins 10, one end of the serpentine tube 11 is connected to the inside of the regulating tube 7, and a return pipe 12 is fixedly connected to the other end of the serpentine tube 11, and the top of the return pipe 12 is fixedly connected to the bottom of the one-way valve 9, a fixed ring 24 is fixedly connected to the inside of the regulating tube 7, and a movable rod 13 is slidably connected to the middle of the fixed ring 24, and an automatic adjustment component is installed at one end of the movable rod 13. When the temperature continues to rise, the temperature of the coolant will also rise, and when the coolant flows through the inside of the copper regulating tube 7, the temperature of the regulating tube 7 will rise. When the automatic adjustment component senses the temperature rise, it will push the movable rod 13 and the piston 14 upwards. When the piston 14 moves up to the port of the serpentine tube 15, the spring 16 is continuously compressed at this time. At the same time, the coolant discharged from the inside of the serpentine tube 15 will be divided into two parts. One part will directly enter the inside of the liquid outlet pipe 8 and be discharged into the cooling system of the car, and the other part will enter the inside of the serpentine tube 2 11 downwards. The coolant entering the inside of the serpentine tube 2 11 will be contacted by multiple heat dissipation fins 10, and the heat will be further dissipated. Then, a part of the coolant after further heat dissipation will pass through the return pipe 12 and the one-way valve 9 into the inside of the liquid outlet pipe 8, and finally flow to the cooling system of the car. The other end of the movable rod 13 is fixedly connected with the piston 14, and the top of the piston 14 is provided with a spring 16. When the piston 14 moves up, the spring 16 will be compressed. When the automatic adjustment component senses the temperature drop and pulls the piston 14 down, the piston 14 can be pushed down by the force generated by the reset of the spring 16 until it returns to its original position.

[0035] Reference Figure 2-Figure 4The automatic adjustment component includes a sealing ring 15 and paraffin 17. The middle part of the sealing ring 15 is fixedly connected to the bottom end of the movable rod 13. The paraffin 17 is arranged between the bottom of the sealing ring 15 and the inner bottom wall of the adjustment tube 7. The outer periphery of the sealing ring 15 is slidably connected to the inside of the adjustment tube 7. When the temperature continues to rise, the temperature of the coolant will also rise. When the coolant flows through the inside of the copper adjustment tube 7, the temperature of the adjustment tube 7 will rise. When the temperature of the adjustment tube 7 rises, the paraffin 17 at the bottom will be heated, and since the melting point of the paraffin 17 is between 46°C and 68°C. When the temperature of the coolant reaches the initial melting point of the paraffin 17 after absorbing the heat of the battery assembly 3. The paraffin 17 will slowly melt, and the volume of the paraffin 17 will gradually increase during the melting process. Then the paraffin 17 will push the sealing ring 15 upward, so that the sealing ring 15 pushes the piston 14 upward. When the temperature rises further, the paraffin 17 will be completely melted and the piston 14 will be pushed to the top of the serpentine tube 1 5. At this time, the channel from the regulating tube 7 to the liquid outlet 8 is closed, and the coolant after absorbing the heat of the battery assembly 3 will all enter the serpentine tube 2 11, and then cooperate with the cooling fins 10 at the bottom to further dissipate the heat of the coolant. Ensure that the temperature of the coolant can be effectively reduced after entering the cooling system of the car. At this time, the pump power for delivering the coolant reaches the maximum value.

[0036] Reference Figure 1 , Figure 3 and Figure 4 , the outer side of the serpentine tube 5 is located at the bottom of the battery assembly 3, so that the heat on the battery assembly 3 can be absorbed by the serpentine tube 5 and transferred to the coolant in the first time. The bottom of the fixing frame 4 abuts against the top of the battery assembly 3. The battery assembly 3 is restricted and fixed inside the frame 1 by the fixing frame 4 to ensure that it will not fall, and the battery assembly 3 can also be easily replaced or maintained. A plurality of mounting ears 23 are fixedly connected to the outside of the frame 1, and the mounting ears 23 can be used to fix the fixed assembly on the chassis bracket of the car. One end of the spring 16 is fixedly connected to the inner top wall of the regulating tube 7, and the other end of the spring 16 is fixedly connected to the top of the piston 14. When the temperature drops and the paraffin 17 re-solidifies, the volume of the paraffin 17 is reduced, which will pull the sealing ring 15 downward, and at the same time, the piston 14 is pulled downward together under the action of the spring 16 resetting, ensuring that the paraffin 17 can return to its original state after solidification. The outer periphery of the piston 14 is slidably connected to the inside of the regulating tube 7. The piston 14 is located between the serpentine tube 1 5 and the serpentine tube 2 11. The piston 14 moves inside the regulating tube 7 to change the flow direction of the coolant, thereby improving the heat dissipation efficiency of the fixed component.

[0037] Reference Figure 1 , Figure 2 and Figure 5The connecting assembly includes a shell 18, the outer side of the shell 18 is fixedly connected to the inside of the fixing frame 4, a lever 19 is slidably connected to the inside of the shell 18, a baffle 20 is fixedly connected to one side of the outer circumference of the lever 19, a compression spring 21 is sleeved on the other side of the outer circumference of the lever 19, the compression spring 21 is fixedly connected between the side of the baffle 20 away from the frame 1 and the inner wall of the shell 18, and a card plate 22 is slidably connected to the top of the shell 18. Pull the handle at the outer end of the lever 19 to move it outward, so that the lever 19 and the hole on the outer wall of the frame 1 are separated, and the fixing frame 4 and the frame 1 are released from the locked state. Continue to pull the lever 19 until it completely enters the inside of the shell 18, at which time the card plate 22 will fall under the action of gravity, and the card plate 22 will first fall on the lever 19, and finally completely separate from the lever 19 and insert into the inside of the shell 18, and block at the end of the lever 19, so as to prevent the compression spring 21 from resetting and pushing the baffle 20 to drive the lever 19 to move. In this way, the other connection components are unlocked and opened together, and the worker can then use both hands to remove the fixing frame 4 from the frame 1, which is more convenient and quick. The outer side of the baffle 20 is slidably connected to the inside of the shell 18, so that the worker will not pull it out of the shell 18 when pulling the lever 19. The lever 19 penetrates the shell 18 and is plugged into the inside of the frame 1. With the help of the plug-in fit between the lever 19 and the outer wall of the frame 1, the fixing frame 4 is conveniently fixed to the frame 1. The bottom of the card plate 22 is set on the top of the baffle 20, and the outer side of the card plate 22 is set inside the fixing frame 4. This prevents the card plate 22 from falling from the top of the shell 18 under the restriction of the fixing frame 4.

[0038] Working principle: The battery assembly 3 is fixed inside the frame 1 through the partition plate 2 and the fixing frame 4. When the battery assembly 3 generates temperature during operation, the pipeline of the automobile water cooling system will send the coolant into the serpentine tube 5 through the liquid inlet 6. After the coolant enters the serpentine tube 5, the copper serpentine tube 5 will quickly absorb the heat emitted by the battery assembly 3 and transfer the heat to the coolant. After that, the coolant absorbs the heat and enters the liquid outlet pipe 8 through the regulating tube 7. Finally, the coolant flows back to the automobile's water cooling system for heat dissipation. In addition, the heat dissipation fins 10 at the bottom of the frame 1 can also add additional heat dissipation means for the fixed assembly to ensure that the battery assembly 3 inside the frame 1 can operate normally under normal conditions. At this time, the cooling system is in the primary circulation state.

[0039] When the temperature continues to rise, the secondary circulation state is turned on, and the temperature of the coolant will slowly rise. At this time, the temperature will be transmitted to the copper regulating tube 7, and the temperature of the regulating tube 7 will rise accordingly. When the temperature of the regulating tube 7 rises, the paraffin 17 at the bottom will be heated, so that the paraffin 17 will slowly melt, and the volume of the paraffin 17 will gradually increase during the melting process. Then the paraffin 17 will push the sealing ring 15 upward, so that the sealing ring 15 pushes the piston 14 upward. When the piston 14 moves up to the end of the serpentine tube 5, the spring 16 is continuously compressed. At the same time, the coolant discharged from the inside of the serpentine tube 5 will be divided into two parts. One part will directly enter the outlet pipe 8 and be discharged into the cooling system of the car, and the other part will go down into the inside of the serpentine tube 11. The coolant entering the inside of the serpentine tube 11 will be contacted by multiple cooling fins 10, which will cooperate to further dissipate the heat. Subsequently, a part of the coolant after further heat dissipation will pass through the reflux pipe 12 and the one-way valve 9 into the outlet pipe 8, and finally flow into the cooling system of the car. At this time, the corresponding pump power for transporting the coolant will increase.

[0040] When the temperature rises further, the advanced circulation state is turned on. At this time, the paraffin 17 will be completely melted and the piston 14 will be pushed to the top of the serpentine tube 1 5. At this time, the channel from the regulating tube 7 to the outlet pipe 8 is closed, and the coolant after absorbing the heat of the battery assembly 3 will all enter the inside of the serpentine tube 2 11, and then cooperate with the heat dissipation fins 10 at the bottom to further dissipate the heat of the coolant. Ensure that the temperature of the coolant can be effectively reduced after entering the cooling system of the car and reflux. At this time, the pump power for conveying coolant reaches the maximum value. When the temperature slowly drops, the melted paraffin 17 will also slowly turn into a solid state, and the volume will also shrink. Under negative pressure, the sealing ring 15 will be pulled downward, and then the movable rod 13 will pull the piston 14 downward, and the piston 14 will slowly return to its original position under the reset action of the spring 16. At this time, the circulation state will be from advanced-secondary-primary, and the pump power for conveying coolant will be reduced accordingly.

[0041] When it is necessary to maintain or replace the battery assembly 3 inside the fixed assembly, the worker only needs to pull the handle at the outer end of the lever 19 to move it outward, so that the lever 19 and the hole on the outer wall of the frame 1 are disengaged, and the fixed frame 4 and the frame 1 are now out of the locked state. Continue to pull the lever 19 until it completely enters the shell 18. At this time, the card plate 22 will fall under the action of gravity. The card plate 22 will first fall on the lever 19, and finally completely detach from the lever 19 and insert into the shell 18, and block the end of the lever 19 to prevent the compression spring 21 from resetting and pushing the baffle 20 to drive the lever 19 to move. In this way, the other connecting components are unlocked and opened together, and the worker can now use both hands to remove the fixed frame 4 from the frame 1, which is more convenient and quick. After that, the battery assembly 3 in the corresponding area can be pulled out from the inside of the frame 1 for maintenance or replacement. After the operation is completed, the fixing bracket 4 can be installed on the frame 1 again, and the card plate 22 can be pushed upward to separate it from the inside of the shell 18. At this time, the compression spring 21 returns to its original position to push the baffle 20 to insert the lever 19 into the hole on the outer wall of the frame 1 again, and the fixing bracket 4 is fixed to the top of the frame 1 to prevent the battery assembly 3 inside the frame 1 from falling.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automotive battery fixing assembly, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to a partition plate (2) inside, a plurality of battery assemblies (3) are arranged between the frame (1) and the partition plate (2), fixing frames (4) are arranged on both sides of the top of the frame (1), and connecting assemblies are installed on both sides of the fixing frames (4), a serpentine tube (5) is fixedly connected to the bottom wall of the frame (1), one end of the serpentine tube (5) is fixedly connected to a liquid inlet (6), and the other end of the serpentine tube (5) is fixedly connected to a regulating tube (7), a side of the regulating tube (7) away from the frame (1) is fixedly connected to a liquid outlet pipe (8), a one-way valve (9) is fixedly connected to the bottom of the liquid outlet pipe (8), and the bottom of the frame (1) is fixedly connected to a A plurality of heat dissipation fins (10), wherein a serpentine tube 2 (11) is fixedly connected inside the plurality of heat dissipation fins (10), wherein one end of the serpentine tube 2 (11) is connected to the inside of the regulating tube (7), wherein the other end of the serpentine tube 2 (11) is fixedly connected to a return tube (12), wherein the top end of the return tube (12) is fixedly connected to the bottom end of the one-way valve (9), wherein a fixing ring (24) is fixedly connected inside the regulating tube (7), wherein a movable rod (13) is slidably connected to the middle part of the fixing ring (24), wherein an automatic adjustment component is installed at one end of the movable rod (13), wherein a piston (14) is fixedly connected to the other end of the movable rod (13), wherein a spring (16) is arranged on the top of the piston (14).

2. The automotive battery fixing assembly according to claim 1, characterized in that: The connecting assembly comprises a shell (18), the outer side of the shell (18) is fixedly connected to the inside of the fixing frame (4), the inside of the shell (18) is slidably connected to a lever (19), one side of the outer periphery of the lever (19) is fixedly connected to a baffle (20), the other side of the outer periphery of the lever (19) is sleeved with a compression spring (21), the compression spring (21) is fixedly connected between a side of the baffle (20) away from the frame (1) and an inner wall of the shell (18), and the top of the shell (18) is slidably connected to a clamping plate (22).

3. The automotive battery fixing assembly according to claim 1, characterized in that: The automatic adjustment component comprises a sealing ring (15) and paraffin (17); the middle portion of the sealing ring (15) is fixedly connected to the bottom end of the movable rod (13); the paraffin (17) is arranged between the bottom of the sealing ring (15) and the inner bottom wall of the adjustment tube (7); the outer periphery of the sealing ring (15) is slidably connected to the inside of the adjustment tube (7).

4. The automotive battery fixing assembly according to claim 1, characterized in that: The outer side of the serpentine tube (5) is located at the bottom of the battery assembly (3), the bottom of the fixing frame (4) abuts against the top of the battery assembly (3), and a plurality of mounting ears (23) are fixedly connected to the outer side of the frame (1).

5. The automotive battery fixing assembly according to claim 1, characterized in that: One end of the spring (16) is fixedly connected to the inner top wall of the regulating tube (7), and the other end of the spring (16) is fixedly connected to the top of the piston (14).

6. The automotive battery fixing assembly according to claim 1, characterized in that: The outer periphery of the piston (14) is slidably connected to the inside of the regulating tube (7), and the piston (14) is located between the serpentine tube 1 (5) and the serpentine tube 2 (11).

7. The automotive battery fixing assembly according to claim 2, characterized in that: The outer side of the baffle (20) is slidably connected to the inside of the shell (18), and the shifting rod (19) passes through the shell (18) and is inserted into the inside of the frame (1).

8. The automotive battery fixing assembly according to claim 2, characterized in that: The bottom of the clamping plate (22) is arranged on the top of the baffle (20), and the outer side of the clamping plate (22) is arranged inside the fixing frame (4).

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