A cold water system for a laser cosmetic instrument and a control method using the same

Abstract

This invention discloses a cold water system for a laser beauty device and a control method thereof, belonging to the field of medical beauty equipment technology. The outlet of the water storage tank is connected to the water supply port of the laser beauty device via a circulating water pump, a cooling component, and a normally closed solenoid valve. The return port of the laser beauty device is connected to the inlet of the water storage tank. The input port of the normally open solenoid valve is connected to the water supply port of the laser beauty device, the output port of the normally open solenoid valve is connected to the input port of a two-position three-way solenoid valve, the normally closed output port of the two-position three-way solenoid valve is connected to the water filling port of the water storage tank, the normally open output port of the two-position three-way solenoid valve is connected to the input port of a first diaphragm water pump, and the output port of the first diaphragm water pump is connected to the water filling port of the water storage tank. The method utilizes a cold water system. The described cold water system for a laser beauty device and its control method solve the problem of water accumulation in existing laser beauty devices after shutdown.

Description

Technical Field

[0001] This invention relates to the field of medical aesthetic equipment technology, and in particular to a cold water system for a laser beauty instrument and a control method for using the same. Background Technology

[0002] During the use of laser beauty devices, the skin surface is prone to heat, which can cause discomfort to the patient. Therefore, a cooling device is needed to cool the skin during use.

[0003] Some products on the market use a cold water system as a cooling device. This system uses a water tank and pump to create a circulating water path between the laser beauty device and the device, allowing cold water to exchange heat with the laser beauty device to cool the skin during treatment. Because water passes through the laser beauty device, water inevitably accumulates after the pump stops. If water remains in the laser beauty device for a long time, it is difficult to guarantee its hygiene. Summary of the Invention

[0004] In order to overcome the defects of the existing technology, the present invention provides a cold water system for a laser beauty device and a control method for using the same, so as to solve the above-mentioned problems.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a cold water system for a laser beauty instrument, including a housing and a water storage tank, a circulating water pump, a cooling component, a normally closed solenoid valve, a normally open solenoid valve, a two-position three-way solenoid valve and a first diaphragm water pump disposed in the housing. The outlet of the water storage tank is connected to the water supply port of the laser beauty device via a circulating water pump, a cooling component, and a normally closed solenoid valve in sequence, and the return port of the laser beauty device is connected to the inlet of the water storage tank. A normally open solenoid valve is connected in parallel between the normally closed solenoid valve and the water supply port of the laser beauty device. The input port of the normally open solenoid valve is connected to the water supply port of the laser beauty device, the output port of the normally open solenoid valve is connected to the input port of the two-position three-way solenoid valve, the normally closed output port of the two-position three-way solenoid valve is connected to the water inlet of the water storage tank, the normally open output port of the two-position three-way solenoid valve is connected to the input port of the first diaphragm water pump, and the output port of the first diaphragm water pump is connected to the water inlet of the water storage tank.

[0006] It is worth noting that the system also includes a second diaphragm water pump. The inlet of the second diaphragm water pump is connected to the water inlet of the water storage tank, and the outlet of the second diaphragm water pump is connected to the outlet of the normally open solenoid valve and the water inlet and outlet of the cold water system.

[0007] Preferably, the housing is further provided with a central control board, which is electrically connected to the circulating water pump, cooling assembly, normally closed solenoid valve, normally open solenoid valve, two-position three-way solenoid valve, first diaphragm water pump and second diaphragm water pump respectively.

[0008] Optionally, the water storage tank is provided with a high-level water level gauge, a medium-level water level gauge and a low-level water level gauge from top to bottom, and the high-level water level gauge, the medium-level water level gauge and the low-level water level gauge are all electrically connected to the central control board.

[0009] Specifically, a fan is provided on the wall of the housing, the air inlet of the fan faces the inside of the housing, the air outlet of the fan faces the outside of the housing, and the fan is electrically connected to the central control board.

[0010] Preferably, the water storage tank is equipped with a thermistor, which is electrically connected to the central control board.

[0011] It is worth noting that the water inlet, water outlet and water filling port of the water storage tank are arranged in order from top to bottom, wherein the water filling port is located at the bottom of the water storage tank.

[0012] A control method using a cold water system for a laser beauty device includes the following steps: S1: Obtain the working status of the laser beauty device; S2: When the laser beauty device is in operation, the central control board drives the circulating water pump and cooling components to start; when the laser beauty device changes from operation to shutdown, the laser beauty device is emptied: the central control board drives the circulating water pump and cooling components to stop, the central control board drives the normally open solenoid valve to be energized, the central control board drives the normally closed solenoid valve to be energized, the central control board drives the two-position three-way solenoid valve to be energized, and the central control board drives the first diaphragm water pump to start.

[0013] It is worth noting that in step S2, when the laser beauty device is in operation, the current water level in the water tank is obtained. When the central control board obtains the low water level signal generated by the low water level gauge, the central control board drives the two-position three-way solenoid valve and the first diaphragm water pump to be energized so as to add water to the water tank through the water inlet and drain outlet.

[0014] Specifically, in step S2, when the preset usage and drainage time of the laser beauty device is reached, and the laser beauty device is in a stopped state, and the laser beauty device drainage operation is completed, the circulating water pump and cooling components are stopped by the central control board, the two-position three-way solenoid valve is energized by the central control board, and the second diaphragm water pump is started by the central control board, so that the water storage tank is drained through the water filling and drainage port.

[0015] The beneficial effects of this invention are as follows: In the cold water system for the laser beauty device, after the laser beauty device is used, the water accumulated inside the laser beauty device can be drained: the circulating water pump and cooling components are stopped, the normally open solenoid valve is energized to connect, the normally closed solenoid valve is energized to stop, and the two-position three-way solenoid valve is energized to connect its normally open output port with its own input port. After the first diaphragm water pump is started, the water supply port of the laser beauty device, the normally open solenoid valve, the two-position three-way solenoid valve, the first diaphragm water pump, and the water inlet of the water storage tank form a connected water path, thereby pumping the water accumulated inside the laser beauty device back into the water storage tank through the first diaphragm water pump, ensuring that there is no water accumulation inside the laser beauty device and preventing the breeding of mosquitoes. Attached Figure Description

[0016] Figure 1 This is a piping diagram of a cold water system for a laser beauty device according to one embodiment of the present invention.

[0017] Figure 2 One embodiment of the present invention is a schematic diagram of the structure of a cold water system for a laser beauty device; Figure 3 This is a schematic diagram of the structure of a cold water system for a laser beauty device in another embodiment of the present invention; Figure 4 This is a system block diagram of a cold water system for a laser beauty device according to one embodiment of the present invention; In the diagram: 1. Housing; 2. Water tank; 3. Circulating water pump; 4. Refrigeration equipment; 5. Normally open solenoid valve; 6. Normally closed solenoid valve; 7. Two-position three-way solenoid valve; 8. Laser beauty instrument; 9. First diaphragm water pump; 10. Second diaphragm water pump; 11. Central control board; 12. High-level water level gauge; 13. Mid-level water level gauge; 14. Low-level water level gauge; 15. Thermistor; 16. Flow meter; 17. Fan; 18. Return water inlet; 19. Water supply inlet; 20. Water inlet and drain outlet; 21. Water inlet; 22. Water outlet; 23. Water inlet. Detailed Implementation

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] like Figure 1-4 As shown, a cold water system for a laser beauty device includes a housing 1 and a water storage tank 2 disposed inside the housing 1, a circulating water pump 3, a cooling assembly, a normally closed solenoid valve 6, a normally open solenoid valve 5, a two-position three-way solenoid valve 7, and a first diaphragm water pump 9. The outlet 22 of the water storage tank 2 is connected to the water supply port 19 of the laser beauty device 8 after passing through the circulating water pump 3, the cooling component and the normally closed solenoid valve 6 in sequence. The return port 18 of the laser beauty device 8 is connected to the inlet 21 of the water storage tank 2. Specifically, the cooling component is a refrigeration compressor or a semiconductor refrigeration chip. A normally open solenoid valve 5 is connected in parallel between the normally closed solenoid valve 6 and the water supply port 19 of the laser beauty device 8. The input port of the normally open solenoid valve 5 is connected to the water supply port 19 of the laser beauty device 8, the output port of the normally open solenoid valve 5 is connected to the input port of the two-position three-way solenoid valve 7, the normally closed output port of the two-position three-way solenoid valve 7 is connected to the water inlet 23 of the water storage tank 2, the normally open output port of the two-position three-way solenoid valve 7 is connected to the input port of the first diaphragm water pump 9, and the output port of the first diaphragm water pump 9 is connected to the water inlet 23 of the water storage tank 2.

[0020] In the cold water system for the laser beauty device, after the laser beauty device 8 is used, the water inside the laser beauty device 8 can be drained: the circulating water pump 3 and the cooling components are stopped, the normally open solenoid valve 5 is energized to connect, the normally closed solenoid valve 6 is energized to stop, and the two-position three-way solenoid valve 7 is energized to connect its normally open output port with its own input port. After the first diaphragm water pump 9 is started, the water supply port 19 of the laser beauty device 8, the normally open solenoid valve 5, the two-position three-way solenoid valve 7, the first diaphragm water pump 9, and the water inlet 23 of the water storage tank 2 form a connected water path, thereby pumping the water inside the laser beauty device 8 back into the water storage tank 2 through the first diaphragm water pump 9, ensuring that there is no water inside the laser beauty device 8 and preventing the breeding of mosquitoes.

[0021] During circulating water cooling: the circulating water pump 3 and the cooling components operate, the normally open solenoid valve 5 is de-energized to shut it off, and the normally closed solenoid valve 6 is de-energized to connect it. A circulating water path is formed by the water outlet 22 of the water storage tank 2 cooperating with the water supply port 19 of the laser beauty device 8, and by the water inlet 21 of the water storage tank 2 cooperating with the water return port 18 of the laser beauty device 8. The water will pass through the cooling components to reduce its temperature before entering the water supply port 19 of the laser beauty device 8, thereby achieving the purpose of cooling.

[0022] It is worth noting that the system also includes a second diaphragm water pump 10. The inlet of the second diaphragm water pump 10 is connected to the water inlet 23 of the water storage tank 2, and the outlet of the second diaphragm water pump 10 is connected to the outlet of the normally open solenoid valve 5 and the water inlet and outlet 20 of the cold water system.

[0023] When water is added to the water storage tank 2, the water inlet / drain port 20 serves as the water inlet, and is therefore used as the input port. At this time, the normally closed solenoid valve 6 is de-energized to connect, and the normally open solenoid valve 5 is de-energized to cut off, so that the water entering from the water inlet / drain port 20 cannot enter the circulating water path for circulating water cooling. The second diaphragm pump 10 is de-energized so that the water that cannot enter from the water inlet / drain port 20 cannot flow through the second diaphragm pump 10. The two-position three-way solenoid valve 7 and the first diaphragm pump 9 are energized so that the water inlet / drain port 20 is connected to the water inlet 23 of the water storage tank 2 through the first diaphragm pump 9, so as to form a connected water path, thereby achieving the purpose of adding water from the water inlet / drain port 20 to the water inlet 23 of the water storage tank 2.

[0024] When the water tank 2 is drained, the water inlet / drain port 20 serves as the drain outlet. The circulating water pump 3 and cooling components are stopped, the normally open solenoid valve 5 is de-energized to stop, and the normally closed solenoid valve 6 is de-energized to stop, preventing water entering through the water inlet / drain port 20 from entering the circulating water path for cooling. The two-position three-way solenoid valve 7 is energized to connect its normally open output port to its own input port. The first diaphragm pump 9 is de-energized, preventing water from flowing through the path where it is located. After the second diaphragm pump 10 is energized, the water in the water tank 2, after passing through its own inlet 23, can only flow through the second diaphragm pump 10 to the water inlet / drain port 20, thus achieving the purpose of draining the wastewater from the water tank 2.

[0025] Preferred, such as Figure 1 As shown, where Figure 1 The dashed lines represent the electrical connections in the circuit, while the solid lines represent the connections in the pipes. The housing 1 also contains a central control board 11, which is electrically connected to the circulating water pump 3, cooling components, normally closed solenoid valve 6, normally open solenoid valve 5, two-position three-way solenoid valve 7, first diaphragm water pump 9, and second diaphragm water pump 10. Figure 4 As shown, in this embodiment, the cooling component is electrically connected to the central control board 11 via a serial TTL port; the first diaphragm water pump 9 and the second diaphragm water pump 10 are both electrically connected to the central control board 11 via GPIO input / output interfaces. The central control board 11 is an STM32F103RCT6.

[0026] Optionally, the water storage tank 2 is provided with a high-level water level gauge 12, a mid-level water level gauge 13, and a low-level water level gauge 14 from top to bottom. All three gauges are electrically connected to the central control board 11. In this embodiment, the high-level water level gauge 12, mid-level water level gauge 13, and low-level water level gauge 14 are electrically connected to the central control board 11 via a circuit with GPIO input / output interfaces and optocouplers.

[0027] Specifically, such as Figure 3 As shown, a fan 17 is provided on the wall of the housing 1. The air inlet of the fan 17 faces inward of the housing 1, and the air outlet of the fan 17 faces outward of the housing 1. The fan 17 is electrically connected to the central control board 11. In this embodiment, the central control board 11 drives the fan 17 via PWM.

[0028] It is worth noting that the water storage tank 2 is equipped with a thermistor 15, which is electrically connected to the central control board 11. The thermistor 15 is used to collect the water temperature in the water storage tank 2 and feed it back to the central control board 11.

[0029] In this embodiment, the cooling assembly includes two sets of cooling devices 4, namely a first thermoelectric cooler and a second thermoelectric cooler. The wall of the housing 1 is equipped with two fans 17, namely a first fan and a second fan. Based on a preset temperature design value, when the temperature obtained by the thermistor 15 is less than the preset temperature design value, the first thermoelectric cooler, the second thermoelectric cooler, the first fan, and the second fan are all off. When the temperature obtained by the thermistor 15 is greater than or equal to the preset temperature design value and less than the preset temperature design value plus 5°C, the first thermoelectric cooler and the first fan are activated. When the temperature obtained by the thermistor 15 is greater than or equal to the preset temperature design value plus 5°C and less than the preset temperature design value plus 10°C, the first thermoelectric cooler, the first fan, and the second fan are activated. When the temperature obtained by the thermistor 15 is greater than or equal to the preset temperature design value plus 15°C, the first thermoelectric cooler, the second thermoelectric cooler, the first fan, and the second fan are activated.

[0030] The housing 1 also houses a flow meter 16. The input port of the flow meter 16 is connected to the output port of the circulating water pump 3, and the output port of the flow meter 16 is connected to the input port of the normally closed solenoid valve 6. The output port of the normally closed solenoid valve 6 is connected to the water supply port 19 of the laser beauty device 8. The flow meter 16 is electrically connected to the central control board 11 via a GPIO input / output interface. The flow rate of water flowing in the pipe between the output port of the circulating water pump 3 and the water supply port 19 of the laser beauty device 8 can be obtained through the flow meter 16.

[0031] The wall of the casing 1 is equipped with a digital tube, LED display, TFT color screen and buttons. The digital tube, LED display, TFT color screen and buttons are all electrically connected to the central control board 11 through GPIO input and output interfaces.

[0032] Specifically, the inlet 21, outlet 22, and filling port 23 of the water storage tank 2 are arranged sequentially from top to bottom, with the filling port 23 located at the bottom of the water storage tank 2. This facilitates the water supply from the water storage tank 2 to the water outlet 19 of the laser beauty device 8 through the outlet 22, and also facilitates the emptying of all water in the water storage tank 2 through the filling port 23 for waste removal.

[0033] A control method using a cold water system for a laser beauty device includes the following steps: S1: Obtain the working status of laser beauty device 8; S2: When the laser beauty device 8 is in the running state, the circulating water pump 3 and cooling components are started through the central control board 11; when the working state of the laser beauty device 8 changes from running to stopping, the laser beauty device 8 is emptied: the circulating water pump 3 and cooling components are stopped through the central control board 11, the normally open solenoid valve 5 is energized through the central control board 11, the normally closed solenoid valve 6 is energized through the central control board 11, the two-position three-way solenoid valve 7 is energized through the central control board 11, and the first diaphragm water pump 9 is started through the central control board 11.

[0034] Specifically, in step S2, when the laser beauty device 8 is in operation, the current water level in the water storage tank 2 is obtained. When the central control board 11 obtains the low water level signal generated by the low water level gauge 14, the central control board 11 drives the two-position three-way solenoid valve 7 and the first diaphragm water pump 9 to be energized so as to add water to the water storage tank 2 through the water inlet and drain outlet 20.

[0035] In this embodiment, when the water level is below the low-level water level gauge 14, the low-level water level gauge 14 will generate a high-level signal to the central control board 11. When the water level is below the low-level water level gauge 14, the central control board 11 will receive a low-level signal, which is the low water level signal, notifying the central control board 11 that the water storage tank 2 needs to be filled. Similarly, when the water level is below the low-level water level gauge 14 and the intermediate water level gauge 13 is below the low-level water level gauge 14, the intermediate water level gauge 13 will generate a high-level signal to the central control board 11. When the water level is below the high-level water level gauge 12 and the intermediate water level gauge 13 is below the high-level water level gauge 12, the high-level water level gauge 12 will generate a high-level signal to the central control board 11. In this way, the central control board 11 can obtain the current water level status of the water storage tank 2 through these signals.

[0036] It is worth noting that in step S2, when the preset usage and drainage time of the laser beauty device 8 is reached, and the laser beauty device 8 is in a stopped state, and after the drainage operation of the laser beauty device 8 is completed, the central control board 11 drives the circulating water pump 3 and the cooling component to stop, the central control board 11 drives the two-position three-way solenoid valve 7 to be energized, and the central control board 11 drives the second diaphragm water pump 10 to start, so that the water storage tank 2 is drained through the water inlet and drain outlet 20. In this embodiment, the preset usage and drainage time of the laser beauty device 8 is set through the operation panel. After the drainage time is set, the usage time of the laser beauty device 8 is timed. When the usage time reaches the drainage time, the water storage tank 2 is drained through the water inlet and drain outlet 20, and then the usage time of the laser beauty device 8 is reset to zero.

[0037] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A cold water system for a laser beauty device, characterized in that: Includes a housing and a water tank, a circulating water pump, a cooling assembly, a normally closed solenoid valve, a normally open solenoid valve, a two-position three-way solenoid valve, and a first diaphragm water pump installed inside the housing; The outlet of the water storage tank is connected to the water supply port of the laser beauty device via a circulating water pump, a cooling component, and a normally closed solenoid valve in sequence, and the return port of the laser beauty device is connected to the inlet of the water storage tank. A normally open solenoid valve is connected in parallel between the normally closed solenoid valve and the water supply port of the laser beauty device. The input port of the normally open solenoid valve is connected to the water supply port of the laser beauty device, the output port of the normally open solenoid valve is connected to the input port of the two-position three-way solenoid valve, the normally closed output port of the two-position three-way solenoid valve is connected to the water inlet of the water storage tank, the normally open output port of the two-position three-way solenoid valve is connected to the input port of the first diaphragm water pump, and the output port of the first diaphragm water pump is connected to the water inlet of the water storage tank. It also includes a second diaphragm water pump, the inlet of which is connected to the water inlet of the water storage tank, and the outlet of which is connected to the outlet of the normally open solenoid valve and the water inlet and outlet of the cold water system, respectively. The housing is also equipped with a central control board, which is electrically connected to the circulating water pump, cooling assembly, normally closed solenoid valve, normally open solenoid valve, two-position three-way solenoid valve, first diaphragm water pump and second diaphragm water pump respectively. The water storage tank is equipped with a high-level water level gauge, a medium-level water level gauge, and a low-level water level gauge from top to bottom. All three water level gauges are electrically connected to the central control board. The cooling assembly includes two sets of cooling devices, namely a first thermoelectric cooler and a second thermoelectric cooler. Two fans, a first fan and a second fan, are mounted on the wall of the casing. Both fans are electrically connected to the central control board. Based on a preset temperature design value, when the temperature obtained by the thermistor is lower than the preset temperature design value, the first thermoelectric cooler, the second thermoelectric cooler, the first fan, and the second fan are not activated. When the temperature obtained by the thermistor is greater than or equal to the preset temperature design value but less than the preset temperature design value plus 5°C, the first thermoelectric cooler and the first fan are activated. When the temperature obtained by the thermistor is greater than or equal to the preset temperature design value plus 5°C but less than the preset temperature design value plus 10°C, the first thermoelectric cooler, the first fan, and the second fan are activated. When the temperature obtained by the thermistor is greater than or equal to the preset temperature design value plus 15°C, the first thermoelectric cooler, the second thermoelectric cooler, the first fan, and the second fan are activated. The water storage tank is equipped with a thermistor, which is electrically connected to the central control board. The control method for using this chilled water system includes the following steps: S1: Obtain the working status of the laser beauty device; S2: When the laser beauty device is in operation, the circulating water pump and cooling components are started via the central control board; when the laser beauty device changes from operation to shutdown, the laser beauty device is emptied: the circulating water pump and cooling components are stopped via the central control board, the normally open solenoid valve is energized via the central control board, the normally closed solenoid valve is energized via the central control board, the two-position three-way solenoid valve is energized via the central control board, and the first diaphragm water pump is started via the central control board. In step S2, when the preset usage and drainage time of the laser beauty device is reached, and the laser beauty device is in the shutdown state, and the laser beauty device drainage operation is completed, the circulating water pump and cooling components are stopped by the central control board, the two-position three-way solenoid valve is energized by the central control board, and the second diaphragm water pump is started by the central control board, so that the water storage tank is drained through the water filling and drainage port.

2. The cold water system for a laser beauty device according to claim 1, characterized in that: The water inlet, outlet, and filling port of the water storage tank are arranged sequentially from top to bottom, with the filling port located at the bottom of the water storage tank.

3. The cold water system for a laser beauty device according to claim 1, characterized in that: In step S2, when the laser beauty device is in operation, the current water level in the water tank is obtained. When the central control board obtains the low water level signal generated by the low water level gauge, the central control board drives the two-position three-way solenoid valve and the first diaphragm water pump to be energized so as to add water to the water tank through the water inlet and drain outlet.

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