Self-cooling air spring gas supply unit

Abstract

This utility model discloses a self-cooling air spring air supply unit, including a housing (1), an air pump (2) inside the housing (1), an air pipeline on the housing (1), the air pipeline being divided into a return air pipe (3) for cooling and an air inlet pipe (4) for inflation, an inflation pipe (5) connected to the return air pipe (3) and the air inlet pipe (4) on the housing (1), and an exhaust pipe (6) on the housing (1). During the exhaust process, the air spring is depressurized, the gas discharged by the air spring flows back through the inflation pipe (5), and the air spring is rapidly discharged under the pressure of the vehicle body. The high-pressure gas flows back into the housing (1) through the return air pipe (3) and is discharged outward. When the high-pressure gas passes through the inside of the housing (1), it blows past the air pump (2) inside the housing (1), and the high-speed flow of the high-pressure gas completes the cooling of the air pump (2).

Description

Technical Field

[0001] This utility model belongs to the field of air spring technology. Specifically, this utility model relates to a self-cooling air spring air supply unit. Background Technology

[0002] In electric vehicle suspension technology, air springs are gradually being used in more and more models. Due to their height adjustability and good comfort, they are favored by new energy vehicles and have gradually become the mainstream configuration of new energy vehicles on new platforms.

[0003] A patent specification with patent number 202211695582.0 and publication date of February 9, 2024 discloses an air circulation cooling device and its circulation cooling method for an automotive air pump, including: a distribution valve connected to the air pump outlet; the distribution valve is provided with a two-position three-way valve, a three-position three-way valve, and a two-position two-way valve, wherein the two-position three-way valve is connected to the air pump outlet, a high-pressure storage tank, and a low-pressure storage tank, the three-position three-way valve is connected to the high-pressure storage tank, the low-pressure storage tank, and the outside environment, and the two-position two-way valve is connected to the connecting pipeline from the two-position three-way valve to the low-pressure storage tank and an air spring; it also includes: a regulating valve and a finned radiator, wherein: the regulating valve is located on the connecting pipeline between the three-position three-way valve and the high-pressure storage tank, the main flow channel of the finned radiator is located on the connecting pipeline between the two-position three-way valve and the low-pressure storage tank, and the heat dissipation channel of the finned radiator is located on the connecting pipeline between the regulating valve and the three-position three-way valve. This utility model discloses an air circulation cooling device and its circulation cooling method for an automotive air pump, which ensures that the air flow meets normal requirements and has high cooling efficiency.

[0004] During vehicle development, the increasing application of intelligent driving functions such as road preview has led to the need for the air springs to constantly adjust the vehicle's posture to meet the requirements of comfort and driving safety. As a result, the air spring supply unit needs to be frequently inflated and deflated. The frequent operation of the supply unit can cause the air pump to overheat and trigger its protection mechanism. Utility Model Content

[0005] The present invention aims to provide a self-cooling air spring air supply unit that can improve the cooling efficiency of an air pump.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a self-cooling air spring supply unit, including a housing, an air pump inside the housing, an air pipeline on the housing, the air pipeline being divided into a return air pipeline for cooling and an air inlet pipeline for inflation, and an inflation pipe connected to the return air pipeline and the air inlet pipeline on the housing.

[0007] The air inlet pipe is connected to the air pump, and the air return pipe is connected to the outer casing.

[0008] The outer casing is provided with an exhaust pipe, and the exhaust pipe is provided with an exhaust valve.

[0009] The intake pipe is equipped with an intake valve, and the return pipe is equipped with a return valve.

[0010] A T-junction is provided between the return air pipe, the inlet air pipe, and the inflation pipe.

[0011] The inflation tube is connected to the bladder of the air spring.

[0012] The exhaust pipe and return pipe are located at both ends of the air pump.

[0013] The technical effect of this utility model is as follows: During the exhaust process, the air spring releases air, and the gas discharged by the air spring flows back through the inflation pipe. Under the pressure of the vehicle body, the air in the air spring is quickly discharged. The high-pressure gas flows back into the outer shell through the return pipe and is discharged outward through the exhaust pipe. When the high-pressure gas passes through the inside of the outer shell, it blows past the air pump inside the outer shell, and the high-speed flow of the high-pressure gas completes the cooling of the air pump. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This is a schematic diagram of the structure of a self-cooling air spring air supply unit according to the present invention;

[0016] Figure 2 for Figure 1 A schematic diagram of an air pump for a self-cooled air spring air supply unit.

[0017] The following are marked in the diagram: 1. Outer shell; 2. Air pump; 3. Return air pipe; 4. Inlet air pipe; 5. Inflation pipe; 6. Exhaust pipe; 7. Exhaust valve; 8. Inlet air valve; 9. Return air valve. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution, and to facilitate its implementation.

[0019] Please see Figure 1-2A self-cooling air spring air supply unit includes a housing 1, an air pump 2 inside the housing 1, and an air pipeline on the housing 1. The air pipeline is divided into a return air pipe 3 for cooling and an air inlet pipe 4 for inflation. The housing 1 is provided with an inflation pipe 5 connected to the return air pipe 3 and the air inlet pipe 4. During the exhaust process, the air spring is deflated. The gas discharged by the air spring flows back through the inflation pipe 5. Under the pressure of the vehicle body, the air in the air spring is rapidly discharged. The high-pressure gas flows back into the housing 1 through the return air pipe 3 and is discharged outward. When the high-pressure gas passes through the inside of the housing 1, it blows past the air pump 2 inside the housing 1. The high-speed flow of the high-pressure gas completes the cooling of the air pump 2.

[0020] The air inlet pipe 4 is connected to the air pump 2, and the air return pipe 3 is connected to the outer casing 1. The air pump 2 supplies air to the air inlet pipe 4, which in turn supplies air to the air spring. The air discharged from the air spring is discharged back into the outer casing 1 through the air return pipe 3, thus cooling the air pump 2.

[0021] The outer casing 1 is equipped with an exhaust pipe 6, and the exhaust pipe 6 is equipped with an exhaust valve 7. The gas that is sent back into the outer casing 1 through the return pipe 3 can be discharged out through the exhaust pipe 6, which avoids excessive gas pressure in the exhaust pipe 6 and can also form effective gas flow, increasing the gas flow efficiency. The exhaust valve 7 is installed on the exhaust pipe 6 to control the opening and closing of the exhaust pipe 6 and prevent gas leakage when sealing is required.

[0022] An intake valve 8 is provided on the intake pipe 4, and a return valve 9 is provided on the return pipe 3. The intake valve 8 and the return valve 9 are used to control the opening and closing of the intake pipe 4 and the return pipe 3 respectively, to prevent gas backflow or gas from being unable to pass smoothly through the pipes that need to be flowed.

[0023] A T-junction is provided between the return air pipe 3, the intake air pipe 4, and the inflation pipe 5; the three pipes are connected together through the T-junction to form a smooth airflow path.

[0024] The inflation tube 5 is connected to the air spring's bladder; the air spring is inflated through the inflation tube 5.

[0025] The exhaust pipe 6 and the return pipe 3 are located at both ends of the air pump 2. The air that flows back into the outer casing 1 through the return pipe 3 is discharged through the exhaust pipe 6. The gas flows from one end of the air pump 2 to the other end, forming a smooth airflow, which can effectively cool the air pump 2.

[0026] Workflow: During the air spring lifting and inflation process, the system software sends a command to the air supply unit, the intake valve 8 and the exhaust valve 7 open simultaneously, the return valve 9 closes, and the air pump 2 starts working. Under the action of the air pump 2, air is pumped into the intake pipe 4 through the exhaust pipe 6. Under the action of the car's distribution valve, the air in the intake pipe 4 is distributed into the air spring bladder specified by the system software. After the inflation process is completed, the intake valve 8 and the exhaust valve 7 close.

[0027] During the air spring's descent and exhaust process, the air spring begins to release under the control of the system software. The intake valve 8 closes, while the return valve 9 and exhaust valve 7 open. The high-pressure air in the air spring bladder enters the air pipeline through the distribution valve and flows into the housing 1 through the return pipe 3 and the return valve 9. The high-pressure airflow blows over the air pump 2, cooling the air pump 2, and finally exits through the exhaust pipe 6.

[0028] The technical effect of this utility model is as follows: During the exhaust process, the air spring is released, and the gas discharged by the air spring flows back through the inflation pipe 5. Under the pressure of the vehicle body, the air in the air spring is quickly discharged. The high-pressure gas flows back into the outer shell 1 through the return pipe 3 and is discharged outward through the exhaust pipe 6. When the high-pressure gas passes through the inside of the outer shell 1, it blows past the air pump 2 inside the outer shell 1. The high-speed flow of the high-pressure gas is used to cool down the air pump 2.

[0029] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A self-cooling air spring air supply unit, characterized in that: Includes an outer shell (1), an air pump (2) is provided inside the outer shell (1), an air pipeline is provided on the outer shell (1), the air pipeline is divided into a return air pipe (3) for cooling and an air inlet pipe (4) for air inflation, and an inflation pipe (5) is provided on the outer shell (1) connected to the return air pipe (3) and the air inlet pipe (4).

2. The self-cooling air spring supply unit according to claim 1, characterized in that: The air inlet pipe (4) is connected to the air pump (2), and the air return pipe (3) is connected to the outer casing (1).

3. A self-cooling air spring supply unit according to claim 1 or 2, characterized in that: The outer casing (1) is provided with an exhaust pipe (6), and the exhaust pipe (6) is provided with an exhaust valve (7).

4. The self-cooling air spring supply unit according to claim 1, characterized in that: The intake pipe (4) is equipped with an intake valve (8), and the return pipe (3) is equipped with a return valve (9).

5. The self-cooling air spring supply unit according to claim 1, characterized in that: A tee is provided between the return pipe (3), the inlet pipe (4), and the inflation pipe (5).

6. A self-cooling air spring supply unit according to claim 1 or 5, characterized in that: The inflation tube (5) is connected to the bladder of the air spring.

7. The self-cooling air spring supply unit according to claim 3, characterized in that: The exhaust pipe (6) and the return pipe (3) are located at both ends of the air pump (2).

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