Air outlet connector structure of expansion water tank

Abstract

The utility model relates to the technical field of automobiles and engineering machinery equipment, in particular to an air outlet connector structure of an expansion water tank, the expansion water tank comprises a lower tank body and an upper tank cover, the upper tank cover is provided with a filling port and an air outlet, the filling port is provided with a water return port used for installing a water return pipe, and the lower tank body is provided with a water outlet; an electromagnetic valve is in threaded connection with the interior of the air outlet, and the electromagnetic valve is provided with a first threaded connection part, a limiting plate and a second threaded connection part; the first threaded connecting part is connected with the air outlet, a connecting line of the electromagnetic valve is arranged on the side face of the limiting plate, and the second threaded connecting part is connected with a silencer. The silencing device comprises an expansion cavity, and a silencing sleeve matched with the interior of the expansion cavity is installed in the expansion cavity. By integrating the functions of automatic pressure regulation, sealing performance improvement, noise reduction and the like, the performance of the air outlet connector of the expansion water tank is remarkably improved, and the air outlet connector is suitable for pressure management and noise control of an automobile cooling system.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles and engineering machinery equipment, and in particular to an air outlet interface structure of an expansion water tank. Background Art

[0002] The information disclosed in the background technology of the present invention is only intended to increase the understanding of the overall background of the present invention, and shall not necessarily be regarded as an admission or suggestion in any form that the information constitutes the prior art already known to those skilled in the art.

[0003] When gas is released quickly from the outlet interface of the expansion tank, the turbulence and sound wave emission caused by the high gas flow rate and large pressure difference will generate noise. Moreover, in the automotive cooling system, the function of the expansion tank is to absorb the volume expansion of the coolant caused by temperature changes. Under normal operating conditions, the expansion tank should remain relatively sealed to maintain the pressure level of the system. Maintaining the appropriate pressure in the system helps to improve the cooling efficiency. When the system pressure exceeds the preset value, the outlet opens to release the pressure. Therefore, even if the outlet of the expansion tank is mainly used for pressure release, it is also necessary to ensure the sealing in the non-release state.

[0004] The gas outlet interface of the expansion tank in the prior art mostly adopts a free opening design. Although this type of design is simple, easy to manufacture and maintain, it will cause a small amount of leakage in the non-depressurized state and will generate a lot of noise when the gas is released quickly. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an expansion tank air outlet interface structure, which is intended to automatically adjust the pressure in the expansion tank and its system and eliminate the noise generated when the gas is quickly released.

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

[0007] An expansion water tank air outlet interface structure, the expansion water tank comprises a lower box body and an upper box cover, the upper box cover is provided with a filling port and an air outlet, the filling port is provided with a return port for installing a return pipe, and the lower box body is provided with a water outlet;

[0008] The air outlet is provided with a thread, and a solenoid valve is connected through the thread. The solenoid valve is provided with a first threaded connection part, a limit plate, and a second threaded connection part; the first threaded connection part is connected to the air outlet, the connection line of the solenoid valve is arranged on the side of the limit plate, and the second threaded connection part is connected to a silencer;

[0009] The silencing device comprises an expansion chamber, in which a silencing sleeve adapted to the interior is installed.

[0010] A plurality of honeycomb-shaped silencer pits are arranged on the inner side wall of the silencer sleeve.

[0011] Preferably, the expansion chamber is a streamlined rotating body structure with a hole diameter larger than the outer diameter of the second threaded connection portion and arranged to coincide with the central axis thereof.

[0012] Preferably, two open ends of the silencer sleeve are provided with reinforcement rings.

[0013] Preferably, the expansion chamber is provided with a first mounting cylinder which is cooperatively connected with the second threaded connection portion.

[0014] Preferably, a second mounting tube is provided at the other end of the expansion chamber, an end cover tube is installed on the second mounting tube, a third threaded connection portion adapted to the second mounting tube is provided at one end of the end cover tube, and a guide diffusion ring plate is provided at the other end.

[0015] Preferably, a filter screen is provided at the open end of the end cover tube.

[0016] Preferably, a mounting hole is provided on the side of the lower box body.

[0017] The utility model includes but is not limited to the beneficial effects:

[0018] The utility model adopts a solenoid valve to replace the traditional free opening design, which improves the sealing performance in the non-release state and reduces unnecessary pressure loss. The solenoid valve is connected to the expansion tank through a thread, which ensures good sealing performance, and is easy to install and disassemble, which is conducive to replacement and maintenance.

[0019] The utility model eliminates the noise generated by the airflow released from the outlet end of the electromagnetic valve by arranging a silencer; specifically, the silencer changes the gas flow path by arranging an expansion chamber, reduces the gas flow rate, and reduces the generation of turbulence.

[0020] Moreover, the honeycomb-shaped silencer pits inside the silencer sleeve can absorb sound waves and reduce noise. The silencer sleeve is made of flexible material, which helps to absorb vibration and noise.

[0021] In addition, the airflow after being homogenized and divided by the filter is guided by the guide diffuser ring plate, which further reduces the noise generated by turbulence and sound wave emission. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the disassembled structure of the silencer.

[0024] The reference numerals involved in the accompanying drawings are:

[0025] 1. Lower box body; 11. Mounting hole; 2. Upper box cover; 3. Filling port; 31. Water return port; 4. Air outlet; 5. Water outlet; 6. Solenoid valve; 61. First threaded connection; 62. Limit plate; 63. Second threaded connection; 7. Expansion chamber; 71. First mounting cylinder; 72. Second mounting cylinder; 73. End cover cylinder; 731. Diffusion guide plate; 732. Filter screen; 733. Third threaded connection; 8. Silencer sleeve; 81. Silencer pit; 82. Reinforcement ring. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 to Figure 2 An expansion water tank air outlet interface structure is shown, the expansion water tank comprises a lower box body 1 and an upper box cover 2, the upper box cover 2 is provided with a filling port 3 and an air outlet 4, the filling port 3 is provided with a return port 31 for installing a return pipe, the lower box body 1 is provided with a water outlet 5, and a mounting hole 11 is provided on the side;

[0028] The gas outlet 4 is provided with a thread, and a solenoid valve 6 is connected through the thread. The solenoid valve 6 is used to achieve good control of the release of gas in the expansion tank and can provide good sealing; the solenoid valve 6 is provided with a first threaded connection part 61, a limit plate 62 and a second threaded connection part 63; the first threaded connection part 61 is connected to the gas outlet 4, and the connection line of the solenoid valve 6 is arranged on the side of the limit plate 62. Therefore, the limit plate 62 is used to install the limit on the one hand, and on the other hand, it is also used to lead out the connection line of the solenoid valve 6, which is convenient for the arrangement of the connection line; the second threaded connection part 63 is connected to a silencer;

[0029] The silencer device includes an expansion chamber 7. When the airflow is released through the outlet of the solenoid valve 6 and enters the expansion chamber 7, the space instantly increases, the air pressure decreases, and the airflow speed slows down, thereby reducing the generation of turbulence; a silencer sleeve 8 adapted to the interior is installed in the expansion chamber 7 to further eliminate the noise generated by the airflow. In order to facilitate installation and help absorb vibration and noise, the silencer is made of a flexible material, including rubber or other polymer materials (such as plastic).

[0030] The inner wall of the silencer sleeve 8 is provided with a plurality of honeycomb-shaped silencer pits 81 , which can provide a good silencer effect.

[0031] The expansion chamber 7 has a hole diameter larger than the outer diameter of the second threaded connection portion 63 and is arranged to coincide with the central axis thereof in a streamlined rotating body structure, such as a shuttle shape, an olive shape, etc.

[0032] The two open ends of the silencer sleeve 8 are provided with reinforcement rings 82 to provide good limiting and make the installation and fixation more stable.

[0033] The expansion chamber 7 is provided with a first mounting tube 71 that is connected with the second threaded connection part 63 at one end, and a second mounting tube 72 at the other end. The second mounting tube 72 is provided with an end cap tube 73. The end cap tube 73 is provided with a third threaded connection part 733 that is adapted to the second mounting tube 72 at one end, and a guide diffuser ring plate is provided at the other end, which cooperates with the filter screen 732 provided at the open end of the end cap tube 73, so that the airflow homogenized and divided by the filter screen 732 is guided by the guide diffuser ring plate and released more smoothly, further reducing the turbulence caused by the airflow and the noise generated by the emission of sound waves. The filter screen 732 can also prevent foreign debris from falling into the expansion water tank.

[0034] A pressure sensor may also be provided in the expansion water tank, and the pressure sensor and the solenoid valve 6 are both electrically connected to the controller, so as to cooperate with the automatic control. When the pressure sensor detects that the pressure in the expansion water tank exceeds the limit value, the controller controls the solenoid valve 6 to open, thereby reducing the pressure. After the pressure is reduced, the solenoid valve 6 is closed. Automatic monitoring and adjustment of the pressure in the expansion water tank are achieved, and the automatic adjustment function helps to maintain the appropriate pressure in the system and improve the cooling efficiency.

[0035] In summary, the expansion tank outlet interface structure significantly improves the performance of the expansion tank outlet interface by integrating functions such as automatic pressure regulation, improved sealing and reduced noise, and is suitable for pressure management and noise control of automobile cooling systems.

[0036] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An expansion water tank air outlet interface structure, the expansion water tank comprises a lower box body and an upper box cover, the upper box cover is provided with a filling port and an air outlet, the filling port is provided with a return port for installing a return pipe, and the lower box body is provided with a water outlet; characterized in that: The air outlet is provided with a thread, and a solenoid valve is connected through the thread. The solenoid valve is provided with a first threaded connection part, a limit plate, and a second threaded connection part; the first threaded connection part is connected to the air outlet, the connection line of the solenoid valve is arranged on the side of the limit plate, and the second threaded connection part is connected to a silencer; The silencing device comprises an expansion chamber, in which a silencing sleeve adapted to the interior is installed.

2. The expansion tank air outlet interface structure according to claim 1, characterized in that: A plurality of honeycomb-shaped silencer pits are arranged on the inner side wall of the silencer sleeve.

3. The expansion tank air outlet interface structure according to claim 1, characterized in that: The expansion chamber is a streamlined rotating body structure with a hole diameter larger than the outer diameter of the second threaded connection portion and arranged to coincide with the central axis thereof.

4. The expansion tank air outlet interface structure according to claim 1, characterized in that: The two open ends of the silencer sleeve are provided with reinforcement rings.

5. The expansion tank air outlet interface structure according to claim 1, characterized in that: The expansion chamber is provided with a first mounting cylinder which is cooperatively connected with the second threaded connection portion.

6. The expansion tank air outlet interface structure according to claim 5, characterized in that: A second mounting tube is arranged at the other end of the expansion chamber, an end cover tube is installed on the second mounting tube, a third threaded connection part adapted to the second mounting tube is arranged at one end of the end cover tube, and a guide diffusion ring plate is arranged at the other end.

7. The expansion tank air outlet interface structure according to claim 6, characterized in that: The open end of the end cover cylinder is provided with a filter screen.

8. The expansion tank air outlet interface structure according to any one of claims 1 to 7, characterized in that: The side surface of the lower box body is provided with a mounting hole.

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