Temperature-controllable laser heat dissipation system and method

Abstract

The invention relates to a temperature-controllable laser heat dissipation system, which mainly comprises a circulating water system; the TEC refrigeration module is used for reducing the temperature of cooling water in the circulating water system; the sampling module is used for acquiring a temperature signal of cooling water in the circulating water system; and the main control module is used for controlling the input current value of the TEC refrigeration module according to the collected temperature signal. According to the TEC refrigeration module for the laser heat dissipation system, rapid cooling can be achieved in a water circulation system, the TEC refrigeration module is a current transduction type piece, and high-precision temperature control can be achieved through control over input current.

Description

Technical Field

[0001] The invention relates to a temperature-controllable laser heat dissipation system, belonging to the field of medical aesthetic lasers. Background Art

[0002] In the medical field, TEC coolers are widely used in the cooling systems of medical devices. For example, in laser therapy, the laser needs to be precisely temperature controlled to ensure the treatment effect. TEC coolers can provide stable temperature control, which guarantees the normal operation of medical equipment.

[0003] When equipment or power devices are running, heat loss will inevitably cause temperature rise. Overheating will cause damage to components, and in severe cases, the circuit or equipment will be burned. Therefore, a cooling system is needed to perform heat exchange to achieve the effect of cooling the equipment.

[0004] The traditional heat dissipation method uses the heat exchange between the radiator and the air to dissipate the temperature. In order to speed up the heat dissipation effect, either the heat dissipation area is increased or a fan is added to the radiator, which only increases the speed of heat exchange. However, this heat dissipation method is greatly affected by environmental factors. As the ambient temperature rises, the effect of heat exchange is significantly reduced, which greatly affects the heat dissipation effect, causing the water flow temperature to rise significantly under the same working conditions, making it difficult to achieve precise temperature control; in order to enhance the heat dissipation effect, the traditional heat dissipation method usually requires a larger radiator, and the entire heat dissipation system occupies a large amount of space, which is very unfavorable for the miniaturization design of the system; at the same time, it is necessary to introduce multiple high-power fans and water pumps, which further increases the volume and brings a lot of noise, making the user experience extremely unfriendly. In view of this, it is very important to design a miniaturized, low-noise, temperature-controllable water temperature control intelligent system. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the existing laser heat dissipation system, such as large size, high noise and uncontrollable temperature, the present invention proposes a temperature-controllable heat dissipation intelligent system to solve the technical problems mentioned in the above background technology section.

[0006] To achieve the above purpose, the specific technical solution of the present invention is as follows: A temperature-controllable laser heat dissipation system mainly includes: Circulating water system; TEC refrigeration module, used to reduce the temperature of cooling water in the circulating water system; A sampling module for collecting temperature signals of cooling water in the circulating water system; The main control module controls the input current value of the TEC refrigeration module according to the collected temperature signal.

[0007] Furthermore, the circulating water system also includes a circulating water power device for providing power to the circulating water system, and the main control module also controls the rotation speed of the circulating water power device.

[0008] Furthermore, a fan is included, and the main control module controls the speed of the fan.

[0009] Further, including a circulating water system; TEC refrigeration module, used to reduce the temperature of cooling water in the circulating water system; A sampling module for collecting temperature signals of water in the circulating water system; A main control module controls the input current value of the TEC refrigeration module according to the collected temperature signal; A circulating water power device, used to provide power to the circulating water system, and the main control module also controls the rotation speed of the circulating water power device; A fan, wherein the main control module controls the speed of the fan; The main control module controls the input current value of the TEC refrigeration module, the rotation speed of the circulating water power device and the fan speed simultaneously according to the collected temperature signal, so that the temperature of the cooling water is within a set range.

[0010] Beneficial effects: The TEC refrigeration module used in the laser heat dissipation system of the present invention can quickly cool down in a water circulation system, and the TEC refrigeration module is a current transducer type piece, which can achieve high-precision temperature control by controlling the input current.

[0011] To achieve the above purpose, the specific technical solution 2 of the present invention is as follows: A temperature-controllable laser heat dissipation method is applied to a temperature-controllable laser heat dissipation system, the system comprising Circulating water system; TEC refrigeration module, used to reduce the temperature of cooling water in the circulating water system; A sampling module for collecting temperature signals of cooling water in the circulating water system; The main control module controls the input current value of the TEC refrigeration module according to the collected temperature signal.

[0012] The method includes starting a circulating water system; Collect temperature signals and transmit them to the main control module; The current value is set according to the temperature signal to control the temperature of the cooling water within a set range.

[0013] Further, including a circulating water system; TEC refrigeration module, used to reduce the temperature of cooling water in the circulating water system; A sampling module for collecting temperature signals of cooling water in the circulating water system; A main control module controls the input current value of the TEC refrigeration module according to the collected temperature signal; The circulating water system also includes a circulating water power device for providing power to the circulating water system, and the main control module also controls the rotation speed of the circulating water power device; The method comprises collecting a rotation speed signal of a circulating water power device and sending it to a main control module, and controlling the rotation speed of the circulating water power device according to the temperature of the cooling water.

[0014] Further, including a circulating water system; TEC refrigeration module, used to reduce the temperature of cooling water in the circulating water system; A sampling module for collecting temperature signals of cooling water in the circulating water system; A main control module controls the input current value of the TEC refrigeration module according to the collected temperature signal; A fan, wherein the main control module controls the speed of the fan; The method also includes adjusting the rotation speed of the fan according to the current value.

[0015] Beneficial effect: The second technical solution provided by the present invention can quickly reduce the temperature of cooling water by utilizing the input value of TEC current and adjusting the speed of the pump, and can quickly reduce the temperature of the TEC refrigeration module by adjusting the speed of the fan.

[0016] To achieve the above purpose, the specific technical solution three of the present invention is as follows: a temperature-controllable laser heat dissipation method is applied to a temperature-controllable laser heat dissipation system, the system comprising Circulating water system; TEC refrigeration module, used to reduce the temperature of cooling water in the circulating water system; A sampling module for collecting temperature signals of cooling water in the circulating water system; A main control module controls the input current value of the TEC refrigeration module according to the collected temperature signal; The circulating water system also includes a circulating water power device for providing power to the circulating water system, and the main control module also controls the rotation speed of the circulating water power device; A fan, wherein the main control module controls the speed of the fan; The method further comprises Start the circulating water system; Collect temperature signals and transmit them to the main control module; Start the fan; Start the circulating water power device at normal power; Gradually increase the rated current value until the main control module controls the cooling water temperature within the set range; Reduce the speed of the circulating water power device; The fan speed is controlled according to the final input rated current value.

[0017] Beneficial effects: The main control module can realize the intelligent adjustment of the TEC refrigeration module temperature, fan speed, and water pump flow, which can minimize the noise and accurately control the output water flow temperature to the set temperature in a very short time to achieve effective temperature control. This intelligent control method abandons the use of high-power fans and water pumps, and only requires a lower silent fan speed and a smaller water pump flow rate to achieve temperature control, thereby further reducing the noise of the system, making the system small in size, good in heat dissipation, temperature controllable, and silent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of a temperature-controllable laser heat dissipation system in an embodiment of the present invention.

[0019] Figure 2 It is a control block diagram of a temperature-controllable laser heat dissipation system control module in an embodiment of the present invention.

[0020] Figure numerals: 1. water tank; 2. fan; 3. TEC refrigeration module; 4. sampling module; 5. circulating water power device; 6. main control module. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work. Embodiment 1

[0022] like Figure 1 As shown, this embodiment 1 proposes a temperature-controllable laser heat dissipation system, which is applied to a medical beauty laser system and mainly includes a circulating water system; the circulating water system in this embodiment includes a water tank. The water tank in this embodiment is made of metal material, especially aluminum alloy, to ensure that the temperature of the cooling water is quickly transferred to the water tank.

[0023] TEC refrigeration module 3 is used to reduce the temperature of the cooling water in the circulating water system; in this embodiment, several TEC refrigeration modules 3 are designed and installed on both sides of the water tank. The strong cooling effect of the TEC refrigeration module 3 is used to achieve the rapid cooling effect of the cooling water in the water tank. TEC refrigeration module 3 is a thermoelectric refrigeration component made according to the Peltier effect. It is light in weight, small in size and has a relatively high cooling capacity. It is particularly suitable for cooling limited spaces. When direct current passes through a couple formed by two different semiconductor materials connected in series, heat can be absorbed and released at both ends of the couple respectively, thereby achieving the purpose of refrigeration. Its refrigeration component is a solid-state heat pump, so it does not require maintenance, is noiseless, can work in any position, and has strong impact and vibration resistance.

[0024] The sampling module 4 collects the temperature signal of the cooling water in the circulating water system. The temperature signal collection in this embodiment is completed by using a water flow and water temperature integrated sampler. The water flow and water temperature integrated sampler in this embodiment can also collect the flow rate of the cooling water.

[0025] The circulating water system of this embodiment includes a circulating water power device 5 and a pipe (not shown) connecting the water tank 1 and the circulating water power device 5. The circulating water power device 5 of this embodiment adopts a micro silent PWM speed regulating water pump to provide power for the entire circulating water system. It is installed downstream of the water tank 1 to control the flow rate of cooling water in the circulating water system, and finally flows into the heat sink of the host to dissipate heat for the power devices required by the medical beauty laser system. After heat dissipation, the cooling water flows back to the water tank 1 through the other end.

[0026] In this embodiment, the main control module 6 realizes intelligent control of the entire circulating water system and controls the input current value of the TEC refrigeration module 3 according to the collected temperature signal.

[0027] Optionally, in this embodiment, the main control module 6 can also control the rotation speed of the circulating water power device according to the flow rate of the cooling water collected by the water flow and water temperature integrated sampler.

[0028] Optionally, the present embodiment further includes a fan 2 installed above the TEC refrigeration module 3. In the present embodiment, two miniature ultra-quiet four-wire fans 2 are installed to dissipate heat from the TEC refrigeration modules 3 on both sides of the water tank 1. The main control module 6 in the present embodiment controls the speed of the fan 2 according to the temperature of the cooling water.

[0029] Optionally, the main control module 6 in this embodiment can simultaneously control the input current value of the TEC refrigeration module 3, the speed of the circulating water power device 5 and the speed of the fan 2 according to the collected cooling water temperature signal, so that the temperature of the cooling water is within a set period.

[0030] In order to reduce the noise of the fan 2, in this embodiment, the fan 2 can be controlled to be within the minimum speed according to the set temperature of the cooling water. At this time, the input current value of the TEC refrigeration module 3 and the speed of the circulating water power device 5 are reasonably controlled to maintain the minimum speed of the fan 2 and reduce the noise.

[0031] Since the TEC refrigeration module 3 is a current transducing chip, the input current is controlled by the main control module 6. According to the set cooling water temperature, the input current is gradually increased until the cooling water outlet temperature reaches the set value; the speed of the cooling fan 2 is adjusted according to the given input current value. The larger the input current, the greater the speed, thereby achieving rapid heat dissipation of the TEC refrigeration module 3; the circulating water power device 5 is used to control the flow rate of the water flow. Unlike conventional water-cooled radiators, the lower the water flow rate, the more obvious the cooling effect of the TEC refrigeration module 3 on the refrigerant in the water tank 1, the lower the cooling water outlet temperature, and the lower the noise. Therefore, the pump speed can be appropriately reduced, so that the input current value of the refrigeration module 3 can be reduced, thereby reducing the speed of the fan 2, further reducing the noise, and achieving noise minimization. Embodiment 2

[0032] like Figure 2 As shown, this second embodiment also proposes a temperature-controllable laser heat dissipation method, which is applied to the temperature-controllable laser heat dissipation system proposed in the first embodiment; the laser heat dissipation system includes a circulating water system, a TEC refrigeration module 3, a sampling module 4 and a main control module 6.

[0033] The laser heat dissipation method is implemented by the following method: firstly starting the laser heat dissipation system; The flow rate and temperature of the cooling water are detected by a water flow and water temperature integrated sampler and fed back to the main control module 6; According to the temperature of the cooling water, the input current value of the TEC refrigeration module 3 is set to control the temperature of the cooling water within the set range.

[0034] Optionally, further improvement is made on the technical solution proposed in Example 2. In the temperature-controllable laser heat dissipation system proposed in Example 1, the laser heat dissipation system includes a circulating water system, a TEC refrigeration module 3, a sampling module 4, a main control module 6 and a circulating water power device 5.

[0035] The laser heat dissipation method also includes: the active module 6 can also control the rotation speed of the circulating water power device 5. The circulating water power device 5 of this embodiment adopts a micro silent PWM speed regulating water pump to provide power for the entire circulating water system. In this embodiment, the rotation speed of the circulating water power device 5 is controlled according to the temperature of the cooling water, so that the temperature of the cooling water is within a set range.

[0036] Optionally, further improvement is made on the technical solution proposed in Example 2. In the temperature-controllable laser heat dissipation system proposed in Example 1, the laser heat dissipation system includes a circulating water system, a TEC cooling module 3, a sampling module 4, a main control module 6 and a fan 2.

[0037] The laser heat dissipation method further includes: the main control module 6 can also control the rotation speed of the fan 2. In this embodiment, the rotation speed of the fan 2 is controlled according to the input current value of the TEC cooling module 3. Embodiment 3

[0038] This embodiment three also proposes a temperature-controllable laser heat dissipation method, which is applied to the temperature-controllable laser heat dissipation system proposed in embodiment one. The laser heat dissipation system includes a circulating water system, a TEC cooling module 3, a sampling module 4, a main control module 6, a circulating water power device 5 and a fan 2.

[0039] The laser heat dissipation method is carried out in the following method: first, the laser heat dissipation system is started; the flow rate and temperature of the cooling water are detected by the integrated water flow and water temperature sampler and fed back to the main control module 6; according to the temperature of the cooling water, the input current value of the TEC refrigeration module 3 is set, and the cooling fan 2 is started at the lowest power and the speed of the circulating water power device 5 is adjusted at the normal power. The input current is controlled by the main control module 6, and the input current is gradually increased according to the set refrigerant temperature until the outlet coolant temperature reaches the set value. The speed of the fan 2 is adjusted according to the given input current value, and the larger the input current value, the faster the speed, thereby realizing rapid heat dissipation of the TEC refrigeration module 3; the circulating water power device 5 is used to control the flow rate of the water flow. Unlike conventional water-cooled radiators, the lower the water flow rate, the more obvious the cooling effect of the TEC refrigeration module 3 on the refrigerant in the water tank 1, the lower the outlet temperature, and the lower the noise. Therefore, the speed of the water pump 5 can be appropriately reduced, so that the input current value of the TEC refrigeration module 3 can be reduced, thereby reducing the speed of the fan 2, further reducing the noise, and minimizing the noise.

[0040] In this embodiment, in some cases where the heat dissipation power is higher, the higher power requirement can be achieved by increasing the number of TEC cooling modules 3 and cooling fans 2; at the same time, when the noise requirement is not so high, a higher power fan 2 can be selected to increase the heat dissipation efficiency of the hot end of the TEC cooling module 3.

[0041] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A temperature-controllable laser heat dissipation system, characterized in that: Mainly include: Circulating water system; TEC refrigeration module, used to reduce the temperature of cooling water in the circulating water system; A sampling module for collecting temperature signals of cooling water in the circulating water system; The main control module controls the input current value of the TEC refrigeration module according to the collected temperature signal.

2. The temperature-controllable laser heat dissipation system according to claim 1, characterized in that: The circulating water system also includes a circulating water power device for providing power to the circulating water system, and the main control module also controls the rotation speed of the circulating water power device.

3. The temperature-controllable laser heat dissipation system according to claim 1, characterized in that: A fan is also included, and the main control module controls the rotation speed of the fan.

4. The temperature-controllable laser heat dissipation system according to claim 1, characterized in that: including claim 1, claim 2 and claim 3; The main control module controls the input current value of the TEC refrigeration module, the rotation speed of the circulating water power device and the rotation speed of the fan simultaneously according to the collected temperature signal, so that the temperature of the cooling water is within a set range.

5. A temperature-controllable laser heat dissipation method, using the temperature-controllable laser heat dissipation system according to claim 1, characterized in that: The method comprises Start the circulating water system; Collect temperature signals and transmit them to the main control module; The current value is set according to the temperature signal to control the temperature of the cooling water within a set range.

6. The temperature-controllable laser heat dissipation method according to claim 5, using the temperature-controllable laser heat dissipation system according to claim 2, characterized in that: The method comprises collecting a rotation speed signal of a circulating water power device and sending it to a main control module, and controlling the rotation speed of the circulating water power device according to the temperature of the cooling water.

7. The temperature-controllable laser heat dissipation method according to claim 5, using the temperature-controllable laser heat dissipation system according to claim 3, characterized in that: The rotation speed of the fan is adjusted according to the current value.

8. A temperature-controllable laser heat dissipation method, using the temperature-controllable laser heat dissipation system according to claim 4, characterized in that: The method further comprises Start the circulating water system; Collect temperature signals and transmit them to the main control module; Start the fan; Start the circulating water power device at normal power; Gradually increase the input current value until the main control module controls the cooling water temperature within the set range; Reduce the speed of the circulating water power device; According to the final input current value, the fan speed is controlled.

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