Expansion kettle for new energy automobile

Abstract

The utility model relates to the technical field of new energy automobile cooling systems, and discloses an expansion kettle for a new energy automobile, which comprises a kettle body, a water injection pipe is fixedly mounted on the top surface of the kettle body, a water inlet pipe is fixedly mounted on the outer side surface of the water injection pipe, a kettle cover is in threaded connection with the top surface of the water injection pipe, and a water guide sheet and an arc-shaped plate are fixedly mounted in the water injection pipe. An inclined baffle and an anti-vortex plate are fixedly mounted in the kettle body, a mounting seat is fixedly connected to the right side face of the kettle body, and a mounting plate is fixedly connected to the rear side face of the kettle body. According to the expansion kettle, the kettle body can be effectively and stably installed in the automobile by installing the bolts in the screw holes, so that impact and vibration on the expansion kettle in the running process of the automobile can be reduced, the pressure of a cooling system is stabilized, normal work of the cooling system is guaranteed, and the service life of the expansion kettle is prolonged. And meanwhile, interference with other parts can be reduced, inspection and maintenance by workers are facilitated, and therefore the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cooling systems for new energy vehicles, specifically an expansion tank for new energy vehicles. Background Technology

[0002] When the cooling system of a new energy vehicle is working, some pipes are at high temperatures, which easily generates steam. Simultaneously, the system pressure fluctuates constantly with changes in water temperature. If the steam cannot be discharged in time, it can cause air resistance within the system, leading to a continuous rise in water temperature. Unstable system pressure can also cause the cooling system to malfunction. An expansion tank, on the other hand, stores water vapor from the radiator and engine cooling channels, which then flows back after cooling, helping to balance the system pressure.

[0003] According to a search, Chinese patent document CN216507850U ​​discloses an expansion tank for new energy vehicles. This device increases the water circulation pressure, improving cooling efficiency. It also allows for venting both internal and external circulation, reducing flow resistance. The tank is small, space-saving, and easy to install. A level sensor transmits the tank's status to the instrument panel in real time, ensuring timely water replenishment. However, in practical use, the close proximity of the tank's drain and fill ports, coupled with the slight fluctuations in coolant temperature due to vibration and pressure changes during vehicle operation, leads to coolant leakage after prolonged use. Furthermore, the device fails to guide coolant flow back to the expansion tank, potentially causing vortices within the coolant and affecting cooling performance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an expansion tank for new energy vehicles, which has the advantages of effectively balancing system pressure, rationally guiding the flow direction of coolant, and improving cooling efficiency, thus solving the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an expansion tank for new energy vehicles, comprising a tank body, a water injection pipe fixedly installed on the top surface of the tank body, an inlet pipe fixedly installed on the outer side of the water injection pipe, a tank lid threadedly connected to the top surface of the water injection pipe, a water guide plate and an arc-shaped plate fixedly installed inside the water injection pipe, an inclined baffle and an anti-vortex plate fixedly installed inside the tank body, a mounting base fixedly connected to the right side of the tank body, a mounting plate fixedly connected to the rear side of the tank body, and an outlet pipe fixedly installed on the bottom surface of the tank body.

[0008] Preferably, a pressure relief valve, an air inlet valve, and a sealing gasket are fixedly installed inside the lid.

[0009] Through the above technical solution, the coolant expands and forms steam when heated, which increases the pressure inside the kettle. When the pressure accumulates to a certain level, the pressure relief valve opens to release some gas and reduce the internal pressure. After the gas is discharged, when the coolant rises to the kettle lid, the pressure relief valve automatically closes, thus preventing leakage of circulating fluid. At the same time, the sealing gasket provides good sealing performance to prevent coolant from overflowing from the kettle. Similarly, when the temperature of the coolant decreases, the pressure inside the kettle also decreases. When the pressure decreases to a certain level, the air inlet valve opens, allowing external air to enter the kettle, thereby maintaining a certain pressure and effectively ensuring the normal operation of the entire device.

[0010] Preferably, there are two of each of the water guide plates and the arc-shaped plate, and the horizontal height of the two water guide plates is the same as the horizontal height of the water inlet pipe.

[0011] With the above technical solution, when the coolant flows back into the tank from the inlet pipe, the two guide vanes and the arc plate can effectively guide the flow path of the coolant, ensuring that the coolant can flow evenly into the tank. At the same time, the guide vanes and the arc plate can also prevent the coolant from forming vortices inside the water inlet pipe, reducing the impact on the cooling effect.

[0012] Preferably, the number of anti-vortex plates is set to multiple.

[0013] With the above technical solution, when coolant is injected into the interior of the tank from the water injection pipe or water inlet pipe, the inclined baffle can correctly guide the flow direction and path of the coolant. At the same time, multiple anti-vortex plates and inclined baffles can also prevent the coolant from forming vortices inside the tank, so that the coolant flows smoothly and improves cooling efficiency.

[0014] Preferably, there are two mounting bases, and screw holes are provided on the top surface of both mounting bases and the front side of the mounting plate.

[0015] The above technical solution allows for the effective and stable installation of the tank inside the car by bolting it into multiple screw holes. This not only reduces the impact and vibration on the expansion tank during car operation, thus stabilizing the pressure of the cooling system and ensuring its normal operation, but also reduces interference with other components, making it easier for staff to inspect and maintain the tank, thereby improving work efficiency.

[0016] Preferably, a liquid level sensor is fixedly installed inside the vessel body, and scale lines are provided on the front side of the vessel body.

[0017] Through the above technical solutions, the liquid level sensor can monitor the coolant level in the reservoir in real time, providing accurate liquid level information to help the driver understand the remaining amount of coolant and replenish it in time; while the scale lines allow the driver to intuitively see the coolant level in the reservoir, preventing over-addition of coolant, avoiding waste caused by excessive coolant and potential damage to the cooling system, and ensuring the normal operation of the vehicle and driving safety.

[0018] Compared with the prior art, this utility model provides an expansion tank for new energy vehicles, which has the following beneficial effects:

[0019] 1. This utility model utilizes the principle that when the coolant is heated, it expands and forms steam, which increases the pressure inside the kettle. When the pressure accumulates to a certain level, the pressure relief valve opens to release some gas, thereby reducing the internal pressure. After the gas is released, when the coolant rises to the kettle lid, the pressure relief valve automatically closes, thus preventing leakage of circulating fluid. At the same time, the sealing gasket provides good sealing performance to prevent coolant from overflowing from the kettle. Similarly, when the temperature of the coolant decreases, the pressure inside the kettle also decreases. When the pressure drops to a certain level, the air inlet valve opens, allowing external air to enter the kettle, thereby maintaining a certain pressure and effectively ensuring the normal operation of the entire device.

[0020] 2. This utility model utilizes two guide vanes and an arc-shaped plate to effectively guide the flow path of the coolant when it is injected into the vessel from the water inlet or water outlet pipe. This ensures that the coolant flows evenly into the vessel. At the same time, the guide vanes and arc-shaped plate prevent the coolant from forming vortices inside the water inlet pipe. Multiple anti-vortex plates and inclined baffles also prevent the coolant from forming vortices inside the vessel, allowing the coolant to flow smoothly and improving cooling efficiency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the structure of the kettle lid and other parts of this utility model;

[0023] Figure 3 This is a front cross-sectional view of the parts such as the pot body of this utility model.

[0024] The components include: 1. Pot body; 2. Water inlet pipe; 3. Water inlet pipe; 4. Pot lid; 5. Water guide plate; 6. Arc plate; 7. Sloping baffle; 8. Anti-vortex plate; 9. Mounting base; 10. Mounting plate; 11. Water outlet pipe; 12. Pressure relief valve; 13. Air inlet valve; 14. Sealing gasket; 15. Screw hole; 16. Liquid level sensor; 17. Scale line. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-3 An expansion tank for new energy vehicles includes a tank body 1. A water injection pipe 2 is fixedly installed on the top surface of the tank body 1. A water inlet pipe 3 is fixedly installed on the outer side of the water injection pipe 2. A tank lid 4 is threadedly connected to the top surface of the water injection pipe 2. A water guide plate 5 and an arc-shaped plate 6 are fixedly installed inside the water injection pipe 2. An inclined baffle 7 and an anti-vortex plate 8 are fixedly installed inside the tank body 1. A mounting base 9 is fixedly connected to the right side of the tank body 1. A mounting plate 10 is fixedly connected to the rear side of the tank body 1. A water outlet pipe 11 is fixedly installed on the bottom surface of the tank body 1.

[0027] Specifically, a pressure relief valve 12, an air inlet valve 13, and a sealing gasket 14 are fixedly installed inside the lid 4. The advantage is that, through this structure, the coolant expands and forms steam when heated, increasing the pressure inside the pot 1. When the pressure accumulates to a certain level, the pressure relief valve 12 opens to release some gas, reducing the internal pressure. After the gas is released, when the coolant rises to the lid 4, the pressure relief valve 12 automatically closes, preventing leakage of the circulating fluid. Simultaneously, the sealing gasket 14 provides excellent sealing performance, preventing coolant from overflowing from the pot 1. Similarly, when the coolant temperature decreases, the pressure inside the pot 1 also decreases. When the pressure drops to a certain level, the air inlet valve 13 opens, allowing external air to enter the pot 1, thus maintaining a certain pressure and effectively ensuring the normal operation of the entire device.

[0028] Specifically, two water guide vanes 5 and two arc-shaped plates 6 are provided, and the horizontal height of the two water guide vanes 5 is the same as the horizontal height of the inlet pipe 3. The advantage is that, with this structure, when the coolant flows back from the inlet pipe 3 to the inside of the tank 1, the two water guide vanes 5 and the arc-shaped plates 6 can effectively guide the flow path of the coolant, ensuring that the coolant can flow evenly into the inside of the tank 1. At the same time, the water guide vanes 5 and the arc-shaped plates 6 can also prevent the coolant from forming vortices inside the water injection pipe 2, reducing the impact on the cooling effect.

[0029] Specifically, multiple anti-vortex plates 8 are provided. The advantage is that, through this structure, when coolant is injected into the interior of the tank 1 from the water inlet pipe 2 or the water outlet pipe 3, the inclined baffle 7 can correctly guide the flow direction and path of the coolant. At the same time, multiple anti-vortex plates 8 and inclined baffles 7 can also prevent the coolant from forming vortices inside the tank 1, so that the coolant flows smoothly and improves cooling efficiency.

[0030] Specifically, there are two mounting bases 9, and both the top surface of the two mounting bases 9 and the front side of the mounting plate 10 are provided with screw holes 15. The advantage is that by using bolts to install the tank body 1 inside the multiple screw holes 15, it can be effectively and stably installed inside the vehicle. Therefore, it not only reduces the impact and vibration on the expansion tank during vehicle operation, thus stabilizing the pressure of the cooling system and ensuring its normal operation, but also reduces interference with other components, facilitating inspection and maintenance by staff, thereby improving work efficiency.

[0031] Specifically, a liquid level sensor 16 is fixedly installed inside the reservoir 1, and a scale line 17 is provided on the front side of the reservoir 1. The advantages are that the liquid level sensor 16 can monitor the coolant level in the reservoir 1 in real time, providing accurate level information to help the driver understand the remaining coolant level and add it in time; while the scale line 17 allows the driver to visually see the coolant level in the reservoir 1, preventing overfilling and avoiding waste and potential damage to the cooling system caused by excessive coolant, thus ensuring the normal operation of the vehicle and driving safety.

[0032] During use, the coolant expands and forms vapor when heated, increasing the pressure inside the reservoir 1. When the pressure reaches a certain level, the pressure relief valve 12 opens to release some of the gas, reducing the internal pressure. After the gas is released, the coolant rises to the reservoir lid 4, at which point the pressure relief valve 12 automatically closes, preventing leakage of the circulating fluid. Simultaneously, the sealing gasket 14 provides a good seal, preventing coolant from overflowing from the reservoir 1. Similarly, when the coolant temperature decreases, the pressure inside the reservoir 1 also decreases. When the pressure drops to a certain level, the air intake valve 13 opens. The opening allows external air to enter the interior of the vessel 1, thereby maintaining a certain pressure and effectively ensuring the normal operation of the entire device. When coolant is injected into the interior of the vessel 1 from the water injection pipe 2 or the water inlet pipe 3, the two water guide vanes 5 and the arc-shaped plate 6 can effectively guide the flow path of the coolant, ensuring that the coolant can flow evenly into the interior of the vessel 1. At the same time, the water guide vanes 5 and the arc-shaped plate 6 can also prevent the coolant from forming vortices inside the water injection pipe 2. Multiple anti-vortex plates 8 and inclined baffles 7 can also prevent the coolant from forming vortices inside the vessel 1, so that the coolant flows smoothly and improves the cooling efficiency.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An expansion tank for new energy vehicles, comprising a tank body (1), characterized in that: A water inlet pipe (2) is fixedly installed on the top surface of the kettle body (1). A water inlet pipe (3) is fixedly installed on the outer side of the water inlet pipe (2). A kettle lid (4) is threadedly connected to the top surface of the water inlet pipe (2). A water guide plate (5) and an arc plate (6) are fixedly installed inside the water inlet pipe (2). A slanted baffle (7) and an anti-vortex plate (8) are fixedly installed inside the kettle body (1). A mounting base (9) is fixedly connected to the right side of the kettle body (1). A mounting plate (10) is fixedly connected to the rear side of the kettle body (1). A water outlet pipe (11) is fixedly installed on the bottom surface of the kettle body (1).

2. The expansion tank for new energy vehicles according to claim 1, characterized in that: The pressure relief valve (12), air inlet valve (13), and sealing gasket (14) are fixedly installed inside the lid (4).

3. The expansion tank for new energy vehicles according to claim 1, characterized in that: The number of the water guide plate (5) and the arc plate (6) are both two, and the horizontal height of the two water guide plates (5) is the same as the horizontal height of the water inlet pipe (3).

4. An expansion tank for new energy vehicles according to claim 1, characterized in that: The number of anti-vortex plates (8) is set to multiple.

5. An expansion tank for new energy vehicles according to claim 1, characterized in that: The number of the mounting base (9) is two, and the top surface of the two mounting bases (9) and the front side of the mounting plate (10) are provided with screw holes (15).

6. An expansion tank for new energy vehicles according to claim 1, characterized in that: A liquid level sensor (16) is fixedly installed inside the vessel body (1), and a scale line (17) is provided on the front side of the vessel body (1).

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