Medical air compressor

Abstract

The medical air compressor comprises a shell, an air compressor body and an air storage tank, the air compressor body is arranged in the shell, the air inlet end of the air storage tank is connected with the air outlet end of the air compressor body, an air inlet pipe and an air outlet pipe are arranged on the shell, the air inlet pipe is connected with the air inlet end of the air compressor body, and the air outlet pipe is connected with the air outlet end of the air compressor body. The air outlet pipe is connected with the air outlet end of the air storage tank; a cooling box used for cooling the air compressor main body is arranged on the shell, a part of the air outlet pipe is arranged on the cooling box, a large amount of heat is generated when the air compressor main body works, air passing through the air outlet pipe in the cooling box is heated, and meanwhile the temperature of sent-out air is detected through a temperature sensor; the three-way valve is controlled by the temperature control box to adjust the flow of the gas passing through the cooling box, and the gas temperature is finely adjusted by the auxiliary heating assembly, so that the output gas reaches a proper temperature, the influence on the patient experience is avoided as much as possible, and the possibility of causing certain stimulation to the affected part by the low temperature of the gas is reduced.

Description

Technical Field

[0001] This application relates to the field of mechanical equipment technology, and more specifically, to a medical air compressor. Background Technology

[0002] In the medical field, medical air compressors are often used to provide a sufficient and clean air source for healthcare equipment that requires a gas supply. They are suitable for dental equipment, oxygen concentrators, ventilators, and medical equipment. For example, they provide compressed air to ventilators or similar respiratory ventilation systems to meet patients' breathing needs; power dental equipment for various dental treatments; power pneumatic tools in operating rooms for various operations during surgery; power physiotherapy and rehabilitation equipment to support various physiotherapy and rehabilitation treatments; and provide compressed air to centralized gas supply systems in medical institutions to meet the gas flow and pressure requirements of various medical devices.

[0003] However, because the outlet diameter of the air compressor is often small, the air blown out by the air compressor becomes a high-speed airflow after passing through the outlet tool. Therefore, the temperature of the air is low. When used for cleaning the affected area in dentistry, the low temperature of the air can easily affect the patient's experience, and may even cause some irritation to the affected area due to the low temperature. Summary of the Invention

[0004] To facilitate control of the airflow temperature during air output, this application provides a medical air compressor.

[0005] This application provides a medical air compressor, which adopts the following technical solution.

[0006] A medical air compressor includes a housing, an air compressor body, and an air tank. The air compressor body is disposed within the housing. The air inlet end of the air tank is connected to the air outlet end of the air compressor body. The housing is provided with an inlet pipe and an outlet pipe. The outlet pipe is connected to the outlet end of the air tank. The air compressor body includes a motor and a compressor assembly. The motor is driven by the compressor assembly through a pulley transmission system. The inlet pipe is connected to the inlet end of the compressor assembly. The inlet end of the air tank is connected to the outlet end of the compressor assembly. A cooling box is disposed within the housing and surrounds the outer periphery of the motor. A portion of the outlet pipe is disposed within the cooling box and surrounds the outer periphery of the motor.

[0007] In some embodiments, the exhaust pipe includes a first pipe, a second pipe, a third pipe, and a three-way valve. The inlet ends of the first pipe and the second pipe are both connected to the outlet end of the gas storage tank via a three-way valve. A portion of the first pipe is disposed inside the cooling box and is wound around the outer periphery of the motor. The second pipe is disposed outside the cooling box. The two inlet ends of the three-way valve are respectively connected to the outlet ends of the first pipe and the second pipe. The third pipe is connected to the outlet end of the three-way valve.

[0008] In some embodiments, the gas storage tank has a gas outlet at the gas outlet end, a valve is provided on the gas outlet, a three-way pipe is connected to the end of the valve away from the gas storage tank, and the first and second pipelines of the gas outlet pipe are connected to the valve through the three-way pipe.

[0009] In some embodiments, the device further includes a temperature control box and a temperature sensor. A controller is disposed inside the temperature control box, the temperature sensor is electrically connected to the temperature control box, the temperature control box is electrically connected to the three-way valve, and the temperature sensor is disposed on a third pipeline or on a gas output assembly connected to an air compressor.

[0010] In some embodiments, an auxiliary heating component is also included, which is disposed on the air outlet pipe and electrically connected to the temperature control box.

[0011] In some embodiments, a filter section is further included, which is disposed within the housing and connected to the air intake pipe.

[0012] In some embodiments, the filtration unit includes an intake filter assembly and an exhaust filter assembly, the intake filter assembly being connected to the intake pipe and the exhaust filter assembly being connected to the exhaust pipe.

[0013] In some embodiments, the filtration unit includes a filter element, which is detachably disposed.

[0014] In some embodiments, the filtration unit includes a housing and a sterilization component, the housing having an openable replacement port for replacing the filter element.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] During operation, when the air compressor intakes, the main body of the air compressor works, compressing the gas into the air tank. When it outputs, the gas is sent out from the air tank along the outlet pipe, passing through the cooling box of the air compressor main body. Because the air compressor main body generates a lot of heat when it is working, it heats the gas in the cooling box that passes through the outlet pipe. At the same time, the temperature of the delivered gas is detected by a temperature sensor, and then the controller in the temperature control box controls the three-way valve to adjust the flow rate of the gas passing through the cooling box. The gas temperature can also be finely adjusted by the auxiliary heating component, so that the output gas reaches a suitable temperature, minimizing the impact on the patient's experience and reducing the possibility of low gas temperature causing certain irritation to the affected area. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0019] Figure 2 This is a partial cross-sectional view from another perspective of an embodiment of this application.

[0020] Icons: 1. Housing; 2. Air compressor body; 21. Motor; 22. Cooling box; 23. Compressor assembly; 3. Air tank; 4. Inlet pipe; 5. Outlet pipe; 51. First pipeline; 52. Second pipeline; 53. Third pipeline; 54. Three-way valve; 6. Temperature control box; 7. Auxiliary heating assembly; 8. Filter section; 81. Inlet filter assembly; 82. Outlet filter assembly; 83. Filter element. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail. Example

[0023] This application discloses a medical air compressor.

[0024] Reference Figure 1and Figure 2 The air compressor includes a housing 1, an air compressor body 2, and an air tank 3. The air compressor body 2 is installed inside the housing 1. The air inlet end of the air tank 3 is connected to the air outlet end of the air compressor body 2. The housing 1 is provided with an air inlet pipe 4 and an air outlet pipe 5. The air inlet pipe 4 is connected to the air inlet end of the air compressor body 2, and the air outlet pipe 5 is connected to the air outlet end of the air tank 3. A cooling box 22 for cooling the air compressor body 2 is provided inside the housing 1, and a part of the air outlet pipe 5 is wound around the cooling box 22.

[0025] The air compressor body 2 includes a motor 21 and a compressor assembly 23. The motor 21 is connected to the compressor assembly 23 through a pulley and belt drive system. The air inlet pipe 4 is connected to the air inlet end of the compressor assembly 23, and the air inlet end of the air storage tank 3 is connected to the air outlet end of the compressor assembly 23. That is, the air inlet pipe 4 is connected to the air storage tank 3 through the compressor assembly 23. When working, the motor 21 drives the compressor assembly 23 to draw air in through the air inlet pipe 4. After being compressed by the compressor assembly 23, the air is sent to the air storage tank 3 for subsequent external air delivery.

[0026] The cooling box 22 is mounted on the motor 21. Specifically, the cooling box 22 surrounds the motor 21. A portion of the exhaust pipe 5 passes through the cooling box 22 and is wrapped around the motor 21. When the motor 21 is working, it generates heat, which can be transferred to the exhaust pipe 5 inside the cooling box 22. Since the gas flow rate affects its own temperature, when the compressed gas in the gas storage tank 3 is output, the pressure decreases and the flow rate increases, so the temperature of the output gas will decrease. Therefore, when the gas passes through the exhaust pipe 5, the heat from the motor 21 can heat the gas in the exhaust pipe 5, thereby increasing the temperature of the gas output from the exhaust pipe 5. This effectively prevents the exhaust temperature from being too low and affecting the patient's experience. At the same time, it can also cool the motor 21, improving the utilization rate of heat.

[0027] Reference Figure 1 and Figure 2 The exhaust pipe 5 includes a first pipe 51, a second pipe 52, and a third pipe 53. Specifically, the air inlet ends of the first pipe 51 and the second pipe 52 are both connected to the air outlet end of the air storage tank 3 via a three-way pipe. A portion of the first pipe 51 extends into the cooling box 22 and wraps around the outer periphery of the motor 21. The second pipe 52 is located outside the cooling box 22. A three-way valve 54 is installed on the cooling box 22. The two air inlet ends of the three-way valve 54 are respectively connected to the air outlet ends of the first pipe 51 and the second pipe 52. The third pipe 53 is connected to the air outlet end of the three-way valve 54.

[0028] The gas storage tank 3 has a gas outlet with a valve. A three-way pipe is connected to the end of the valve furthest from the gas storage tank 3. The first pipe 51 and the second pipe 52 of the gas outlet pipe 5 are connected to the valve via the three-way pipe. Specifically, one end of the first pipe 51 and one end of the second pipe 52 are detachably connected to the two gas inlets of the three-way pipe. By controlling the opening and closing of the valve, the gas storage tank 3 can be controlled to supply gas.

[0029] When the gas passes through the first pipeline 51, it absorbs the heat from the motor 21 to form a hot gas flow. When the gas passes through the second pipeline 52, the pressure decreases and the flow rate increases to form a cold gas flow. The three-way valve 54 is an electrically controlled valve. By controlling the flow ratio of the gas to the valve ports of the first pipeline 51 and the second pipeline 52, the temperature of the gas output from the third pipeline 53 can be controlled.

[0030] In some embodiments, the motor 21 is disposed inside the cooling box 22, and the first pipe 51 is wound around the motor 21 to improve the efficiency of gas absorption of heat from the motor 21. In other embodiments, the cooling box 22 may also be disposed on one side of the motor 21, and the first pipe 51 may be bent, which can also achieve the effect of improving the efficiency of gas absorption of heat from the motor 21.

[0031] The air compressor also includes a temperature control box 6 and a temperature sensor (not shown in the figure). The temperature sensor is electrically connected to the temperature control box 6, and the temperature control box 6 is electrically connected to the three-way valve 54. The temperature sensor can be installed on the third pipeline 53 or on the gas output assembly connected to the air compressor. The temperature sensor detects the temperature of the output gas and transmits the detected temperature parameter information to the temperature control box 6. The temperature control box 6 then controls the three-way valve 54. When the output temperature is low, the three-way valve 54 can be controlled to increase the gas flow rate in the first pipeline 51 and decrease the gas flow rate in the second pipeline 52, thereby increasing the output gas temperature. Conversely, when the temperature is high, the flow rate decreases, thus achieving accurate control of the outlet gas temperature.

[0032] The temperature control box 6 contains a controller to receive information and output instructions. The controller is presented as a chip component. The temperature control program is preset in the chip component, which can preset the temperature of the output gas. When the temperature sensor detects that the temperature is too high or too low, the three-way valve 54 can be automatically controlled through the preset temperature control program to achieve the effect of automatic constant temperature regulation.

[0033] Optionally, in some other embodiments, the air compressor further includes an auxiliary heating component 7, which is disposed on the outlet pipe 5 and electrically connected to the temperature control box 6. During use, when there is a high demand for the output gas temperature or insufficient heat from the motor 21, the heat from the motor 21 alone may not be enough to heat the outlet gas to the preset temperature. In this case, the auxiliary heating component 7 can be used to further heat the gas output from the third pipe 53, thereby improving the applicability of the entire device.

[0034] Optionally, in other embodiments, the auxiliary heating component 7 may also include a cooling section. When low-temperature gas is required, the gas output from the third pipeline 53 can be further cooled, thereby improving the applicability of the entire device. For example, the auxiliary heating component 7 may employ a heat pump, such as a thermoelectric cooler. As is known, thermoelectric coolers utilize the thermoelectric effect of semiconductors, enabling both heating and cooling. They utilize PN junctions formed by special semiconductor materials to form thermocouple pairs, generating the Peltier effect. The physical principle of the Peltier effect is as follows: charge carriers move in a conductor to form an electric current. Since charge carriers are at different energy levels in different materials, when they move from a high energy level to a low energy level, they release excess heat. Conversely, heat needs to be absorbed from the outside, which manifests as cooling. Specifically, the thermoelectric cooler utilizes the Peltier effect of semiconductor materials. When direct current passes through a thermocouple formed by two different semiconductor materials connected in series, one junction absorbs heat to achieve cooling, while the other junction releases heat to achieve heating. Thus, when it is necessary to heat or cool the gas output from the third pipe 53, it is only necessary to start the heat pump composed of the semiconductor cooling chip.

[0035] Preferably, in some other embodiments, the air compressor further includes a filter unit 8, which is disposed in the housing 1 and connected to the air inlet pipe 4. Since medical air compressors have high requirements for gas cleanliness, a filter assembly is provided on the housing 1 to filter impurities in the air and improve gas cleanliness.

[0036] Furthermore, the filtration unit 8 includes an inlet filter assembly 81 and an outlet filter assembly 82. The inlet filter assembly 81 is connected to the inlet pipe 4, and the outlet filter assembly 82 is connected to the outlet pipe 5. Through dual filtration of the inlet and outlet air, external impurities are prevented from entering while internal impurities are prevented from being output, thereby further improving the cleanliness of the output gas.

[0037] The filter section 8 includes a filter element 83, which is detachable. The air intake filter assembly 81 and the air outlet filter assembly 82 each include a housing, and the housing is provided with an openable replacement port. After a period of use, the filter element 83 can be replaced to avoid the accumulation of impurities.

[0038] Furthermore, in some other embodiments, the filter unit 8 also includes a sterilization component to sterilize and disinfect the air entering the air compressor and the output gas, thereby further improving the quality of the output gas.

[0039] During operation, when the air compressor intakes, the main body of the air compressor works, compressing the gas into the air tank 3. When the air is discharged, the gas is sent out from the air tank 3 along the outlet pipe 5, passing through the cooling box 22 of the air compressor main body 2. Because the air compressor main body 2 generates a lot of heat when it is working, it heats the gas passing through the outlet pipe 5 in the cooling box 22. At the same time, the temperature sensor detects the temperature of the discharged gas, and then the temperature control box 6 controls the three-way valve 54 to adjust the flow rate of the gas passing through the cooling box 22, and the auxiliary heating component 7 finely adjusts the gas temperature, so that the output gas reaches a suitable temperature. At the same time, the gas is filtered by the filter section 8 to minimize the impact on the patient's experience and reduce the possibility of the low temperature of the gas causing certain irritation to the affected area.

[0040] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A medical air compressor, comprising a housing, an air compressor body, and an air tank, wherein the air compressor body is disposed within the housing, characterized in that: The air inlet of the air tank is connected to the air outlet of the air compressor body. The housing is provided with an air inlet pipe and an air outlet pipe. The air outlet pipe is connected to the air outlet of the air tank. The air compressor body includes a motor and a compressor assembly. The motor is connected to the compressor assembly via a pulley transmission system. The air inlet pipe is connected to the air inlet of the compressor assembly. The air inlet of the air tank is connected to the air outlet of the compressor assembly. A cooling box is provided inside the housing. The cooling box surrounds the outer periphery of the motor. A portion of the air outlet pipe is located inside the cooling box and is arranged around the outer periphery of the motor.

2. A medical air compressor according to claim 1, characterized in that: The exhaust pipe includes a first pipe, a second pipe, a third pipe, and a three-way valve. The air inlet end of the first pipe and the air inlet end of the second pipe are both connected to the air outlet end of the air storage tank through the three-way valve. A portion of the first pipe is located inside the cooling box and is wrapped around the outer periphery of the motor. The second pipeline is located outside the cooling box. The two inlet ends of the three-way valve are respectively connected to the outlet ends of the first pipeline and the second pipeline. The third pipeline is connected to the outlet end of the three-way valve.

3. A medical air compressor according to claim 2, characterized in that: The gas storage tank has a gas outlet at the gas outlet end, and a valve is installed on the gas outlet. A three-way pipe is connected to the end of the valve away from the gas storage tank. The first and second pipelines of the gas outlet pipe are connected to the valve through the three-way pipe.

4. A medical air compressor according to claim 2, characterized in that: It also includes a temperature control box and a temperature sensor. A controller is installed inside the temperature control box. The temperature sensor is electrically connected to the temperature control box. The temperature control box is electrically connected to the three-way valve. The temperature sensor is installed on the third pipeline or on the gas output component connected to the air compressor.

5. A medical air compressor according to claim 4, characterized in that: It also includes an auxiliary heating component, which is disposed on the air outlet pipe and is electrically connected to the temperature control box.

6. A medical air compressor according to claim 1, characterized in that: It also includes a filter unit, which is disposed inside the housing and connected to the air intake pipe.

7. A medical air compressor according to claim 6, characterized in that: The filtration unit includes an intake filter assembly and an exhaust filter assembly. The intake filter assembly is connected to the intake pipe, and the exhaust filter assembly is connected to the exhaust pipe.

8. A medical air compressor according to any one of claims 6-7, characterized in that: The filtration unit includes a filter element, which is detachably mounted.

9. A medical air compressor according to claim 8, characterized in that: The filtration unit includes a housing and a sterilization component. The housing has an openable replacement port for replacing the filter element.

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