Portable Skin Cooling Device

Abstract

The present invention relates to a portable skin cooling device, which is related to the field of cold therapy equipment. The portable skin cooling device includes a housing with an internal chamber, a thermoelectric module fixed in the chamber of the housing, the thermoelectric module having a cooling surface, a cooling head embedded in the surface of the housing, the cooling head connected to the cooling surface of the thermoelectric module, a power supply disposed in the housing for supplying power to the thermoelectric module, and a PCB board disposed in the housing, the PCB board connected to both the thermoelectric module and the power supply. The thermoelectric module is used for cooling, the PCB board includes a central control module for controlling the cooling temperature of the thermoelectric module, and the cooling head is used for contacting the skin for cold therapy.

Description

[Technical Field]

[0001] The present invention is in the field of cold therapy equipment and relates to a portable skin cooling device. [Background technology]

[0002] Traditional methods for treating skin conditions and relieving itching involve medications, steroids, hand creams, and lotions. These methods require time for response, are labor-intensive, and can cause various side effects. Relieving itch through cold regulation is a drug-free, natural treatment. When the skin is exposed to a harmless cold stimulus, it stimulates temperature-sensitive cells, thereby reducing itching. Research has shown that heat increases itching, while cold reduces itching. To effectively suppress irritation, inflammation, pain, and itch, the cold stimulus must be sufficiently intense. Cold can numb nerves and reduce blood flow to the area, thereby reducing itching and pain. Ice can also reduce swelling and discomfort associated with various skin rashes or allergic conditions.

[0003] However, in current applications, ice or ice packs are commonly used for cold therapy. Ice or ice packs must be prepared in advance and stored in a container, which is inconvenient when used immediately. When ice is applied directly to the skin, there is a risk of low-temperature burns due to its too low temperature, and ice or ice packs are prone to condensation and melting when exposed to the atmospheric environment, making them extremely inconvenient to use. Summary of the Invention

[0004] The object of the present invention is to address the shortcomings of existing technology by providing a portable skin cooling device for cold therapy using a thermoelectric module, which is used to relieve itching, reduce pain and inflammation, and minimize the risk of low-temperature cold burns, and which is easy to use and carry.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] 1. A portable skin cooling device comprising:

[0007] a housing, the housing having a chamber therein;

[0008] a thermoelectric module secured within the chamber of the housing, the thermoelectric module having a cooling surface;

[0009] a cooling head / tip / end embedded in a surface of the housing, the cooling head being connected to the cooling surface of the thermoelectric module;

[0010] a power supply disposed within the housing, the power supply being used to power a system; and

[0011] a PCB board disposed within the housing, the PCB board connected to both the thermoelectric module and the power source;

[0012] The thermoelectric module is used for cooling, a central control module is provided on the PCB board, and the central control module is used to control the cooling temperature of the thermoelectric module, and the cooling head is used to contact the skin for cold therapy.

[0013] Furthermore, the thermoelectric module includes a thermoelectric cooler.

[0014] Furthermore, the thermoelectric module is configured by one or more thermoelectric coolers arranged by stacking cold and hot surfaces or arranged in a planar array.

[0015] Furthermore, the portable skin cooling device includes a cooling temperature sensor disposed within the housing and connected to the PCB board for monitoring the temperature data of the cooling head and feeding back to the central control module.

[0016] Further, a heat sink module is provided within the housing, the thermoelectric device includes a cooling surface and a heating surface, and the heat sink module is connected to the heating surface.

[0017] The heat sink module further includes a heat pipe connected to the heating surface of the thermoelectric module within the housing, and a phase change material is enclosed within the heat absorption tube.

[0018] The portable skin cooling device further includes a heat sink module temperature sensor secured within the housing and connected to the central control module for monitoring the temperature of the heat sink module and providing feedback to the central control module.

[0019] The portable skin cooling device further includes a vibration module secured within the housing and connected to the central control module.

[0020] Furthermore, the portable skin cooling device includes a phototherapy LED and a radiofrequency electrode.

[0021] The portable skin cooling device further includes an electrotherapy electrode, which is fixed to a surface of the housing and connected to the central control module for use in electrotherapy.

[0022] The technical solution of the present invention has the following advantages over existing technologies:

[0023] 1. The cooling surface and cooling head of the thermoelectric module provide excellent skin cooling effect, which can quickly reduce skin temperature, relieve discomfort, itching and pain, reduce swelling and soothe the skin.

[0024] 2. The central control module and cooling temperature sensor accurately control the temperature, allowing for high-precision control of the cooling temperature, avoiding excessive or insufficient cooling, and enabling safe and effective cooling.

[0025] 3. Effective heat dissipation through the heat sink module and phase change material enables effective heat absorption and release, maintaining a stable operating temperature for the device and thermoelectric module, improving service life and safety. The fanless design eliminates operating noise, has no moving parts, and is water and dust resistant.

[0026] 4. Due to its multi-functional use, the above device can provide phototherapy and electrotherapy options to meet the needs of various skin problems, so as to achieve a more comprehensive therapeutic effect.

[0027] 5. The vibration module improves comfort, and the vibration module inside the device can provide a massaging and soothing effect, improving comfort during use and making the whole therapy process more comfortable.

[0028] Other features and advantages of the invention will be set forth in the specification which follows, and in part will be obvious from the specification, or may be learned by the practice of the invention. The objectives and other advantages of the invention may be achieved and obtained through the specific structures described in this specification and the accompanying drawings. [Brief explanation of the drawings]

[0029] To make the above advantages of the present invention more apparent, the following detailed description of the present invention is provided in conjunction with the accompanying drawings.

[0030] [Figure 1] 1 is an exploded view of a portable skin cooling device according to the present invention.

[0031] [Figure 2] 1 is a connection block diagram of a portable skin cooling device according to the present invention;

[0032] [Figure 3] 1 is a schematic diagram of the temperature control of the portable skin cooling device according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0033] In the following embodiments of the present invention shown in conjunction with the accompanying drawings, the same or similar numbers represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described with reference to the drawings are merely exemplary for explaining the present invention and should not be understood as limiting the present invention.

[0034] In describing the present invention, terms such as "length," "width," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "upper," "lower," "inner," "outer," and the like, indicate directions or positional relationships based on the drawings, and are solely for convenience and simplicity of description, and are not to be understood as limiting the invention, as they do not state or imply that the described devices or elements must have a particular orientation or be constructed and operated in a particular direction.

[0035] Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying relative importance or as implicitly designating the number of technical features. Thus, features defined using "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this invention, "plurality" means two or more, unless otherwise expressly defined.

[0036] In the embodiments of the present invention, unless otherwise specified or limited, the terms "install," "connect," "couple," "fix," etc. should be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or integration, and may refer to a mechanical connection or an electrical connection. They may also refer to a direct connection, an indirect connection via an intermediate medium, or an internal communication or an interactive relationship between two elements. Those skilled in the art will understand the specific meaning of these terms in the present invention according to the specific circumstances.

[0037] Referring to FIGS. 1 to 3, the portable skin cooling device includes:

[0038] a housing 100 having a chamber therein;

[0039] a thermoelectric module 200 secured within the chamber of the housing, the thermoelectric module 200 having a cooling surface;

[0040] a cooling head 300 embedded in the surface of the housing 100, the cooling head 300 being connected to the cooling surface of the thermoelectric module 200;

[0041] a power source 400 disposed within the housing 100, the power source 400 being used to supply power to the thermoelectric module 200;

[0042] The housing includes a PCB board disposed within the housing, the PCB board being connected to both the thermoelectric module and the power source.

[0043] Here, the thermoelectric module 200 is used for cooling, a central control module is provided on the PCB board 500, and the central control module is used to control the cooling temperature of the thermoelectric module 200, and the cooling head 300 is used to contact the skin for cold therapy.

[0044] The power supply 400 is a DC power supply. When cold therapy is required, the power supply 400 provides power to the thermoelectric module 200, and a power protection circuit on the PCB protects the power supply when charging. The thermoelectric module 200 can compensate for temperature repulsion from the skin surface by providing continuous cooling to maintain a low temperature by bringing the cooling head 300 close to the skin. This cooling effect stimulates the skin, causing blood vessels and pores to constrict, reducing blood flow and providing immediate, temporary relief and comfort, reducing irritation, pain, or itching.

[0045] The cooling head 300 is made of non-allergenic and highly thermally conductive materials, such as stainless steel, copper, and aluminum. Because the cooling head 300 comes into direct contact with the skin for cold therapy, the non-allergenic materials are used to avoid allergic reactions in specific skin types. At the same time, the materials with high thermal conductivity are used to optimize the user experience and ensure uniform cold therapy effects. This avoids issues such as insufficient uniformity in cold therapy and reduced temperature transfer efficiency.

[0046] During cold therapy, frostbite prevention must also be considered. There are two ways to prevent frostbite. First, in constant power mode, the thermoelectric element 200 is DC-driven and the operating current is controlled by the central control module, achieving constant power. This allows the cooling amount to be slightly greater than the thermal repulsion from the human body, preventing low-temperature frostbite. Second, in timer mode, a timer unit on the PCB sets a time threshold for continuous cold therapy. When the continuous operating time reaches the threshold, the thermoelectric module 200 automatically turns off. This prevents situations where the user falls asleep and the continuous cold therapy has an adverse effect on their health.

[0047] Furthermore, using the memory device on the PCB, different modes can be pre-programmed according to various usage requirements, allowing the optimal cold therapy time and thermoelectric module 200 to be set. Different cooling outputs for various needs such as itching relief, pain relief and swelling reduction, allowing the user to set and switch between modes (with a single button).

[0048] In this embodiment, the housing 100 is tubular and the cooling head 300 is recessed into the end of the housing for ease of holding during use. The cooling head 300 may be of various shapes, geometric shapes, circular, concave or convex, or roller-shaped. The cooling head 300 may be of various sizes suitable for various inflammation, pain and itching relief, and collagen production promotion.

[0049] In this embodiment, the thermoelectric module 200 includes a thermoelectric cooler. A thermoelectric cooler is a solid-state heat pump that cools an object by transferring heat between two electrical junctions when an electric current is passed through them, creating a temperature difference. This thermoelectric cooler uses a bismuth telluride compound semiconductor device to generate a voltage when two dissimilar metals are connected, and then uses an electric current to transfer heat from one side of the device to the other. This process, known as the Peltier effect, allows for more precise temperature control and reduces energy consumption compared to traditional methods. Compared to other cooling devices, thermoelectric coolers offer the following advantages:

[0050] 1. No need for refrigerants: Thermoelectric coolers do not require traditional refrigerants, making them an environmentally friendly and sustainable cooling technology.

[0051] 2. High reliability: Thermoelectric coolers offer high reliability because they are constructed from semiconductor materials with no moving parts. Thermoelectric coolers are less prone to breakage or failure.

[0052] 3. Compact size: Thermoelectric cooling devices are relatively small and compact, making them suitable for small or portable handheld devices.

[0053] 4. Flexible control: Thermoelectric cooling devices feature fast response and high-precision temperature control. Adjusting voltage or current allows for precise cooling effects tailored to different needs and therapy requirements.

[0054] 5. Low energy consumption: Compared to traditional cooling devices, thermoelectric cooling devices consume less energy. They only consume energy when cooling is required, and no additional energy is required for refrigerant circulation, resulting in energy savings.

[0055] 6. Low noise: Thermoelectric cooling devices have no moving parts, resulting in low noise levels during operation, providing a quieter and more comfortable cold therapy experience.

[0056] In this embodiment, the thermoelectric module 200 is comprised of a plurality of thermoelectric coolers arranged as a stack of hot and cold surfaces or arranged in a planar array.

[0057] Thermoelectric module stacking: By stacking multiple thermoelectric coolers on top of each other, it is possible to increase the thermoelectric output and capacity. The principle of thermoelectric cooler stacking is to connect multiple thermoelectric coolers in a specific manner, thereby enabling heat transfer between the thermoelectric modules. Each thermoelectric module has two contact surfaces: a cold surface and a hot surface. By stacking multiple thermoelectric coolers, it is possible to form a structure in which hot and cold surfaces are alternately arranged. When current flows through each TEC module, a temperature difference occurs at each contact surface. This allows for a larger temperature difference and higher cooling or heating capacity. Stacking thermoelectric coolers also makes it possible to provide higher thermoelectric output, efficiency, and a more precise temperature control range.

[0058] Planar array: This refers to arranging multiple thermoelectric cooling modules on a single plane to form a two-dimensional array structure. Each thermoelectric cooling module typically has only one contact surface, either the cold or hot surface. Planar arrays are used when a larger cooling area is required.

[0059] This embodiment also includes a cooling temperature sensor disposed within the housing 100 and connected to the PCB board 500. The cooling temperature sensor monitors the temperature data of the cooling head 300 and provides feedback to the central control module. The cooling head 300 is in direct contact with the skin, and heat conduction occurs between the cooling head 300 and the thermoelectric module 200, causing a delay in temperature control and affecting the accuracy and response speed of temperature control. To improve the safety of cold therapy and the accuracy of temperature control, the cooling temperature sensor directly monitors the temperature of the cooling head 300. The central control module adjusts the output of the electric heating element 200 in real time based on feedback from the cooling temperature sensor to achieve consistent temperature control, avoid sudden temperature changes, and ensure a comfortable user experience.

[0060] Through feedback from the temperature sensor, the central control module can control the cooling temperature based on variable pulse control. When the device is started, the pulse control extends the power-on time to accelerate the temperature drop so that the cooling head 300 quickly reaches the preset cooling temperature. The pulse control also performs real-time adjustment of the control pulse through feedback from the cooling temperature sensor. Within a pulse period t0, the initial cooling time is t on and the adjustment time is Δt. If the real-time temperature is higher than the threshold temperature, Δt is a positive value; if the real-time temperature is lower than the threshold temperature, Δt is a negative value.

[0061] In this embodiment, a digital display may be provided on the surface of the housing 100. The digital display may be connected to the central control module and used to display the real-time temperature of the cooling head 300, the remaining power and mode of the power supply 400, so that the user can easily understand the cooling status of the cooling head.

[0062] In this embodiment, a heat sink module is installed within the housing 100. The thermoelectric module 200 includes a cooling surface and a heating surface, and the heat sink module is connected to the heating surface. A thermoelectric cooler is a device that cools or heats an object by transferring thermal energy from one side to the other. During the cooling process, the opposite side of the thermoelectric cooling surface becomes the heating surface. The cooling principle is achieved by passing an electric current through P-type and N-type semiconductor materials connected to each other, causing one side to absorb heat and the other side to release it, thereby achieving the cooling effect. In the thermoelectric cooling process, the heat sink on the hot side affects the cooling effect. This is because the cooling effect of the TEC is achieved by transferring heat from one side to the other. If heat cannot be effectively dissipated from the other side, heat will accumulate within the thermoelectric module, reducing the temperature difference and weakening the cooling effect.

[0063] Therefore, in order to reliably obtain the thermoelectric cooling effect, it is necessary to ensure effective heat dissipation on the high temperature side.

[0064] This can be achieved by increasing the heat dissipation surface area using a heat sink, fan, or other cooling device to improve the heat dissipation efficiency. Furthermore, optimizing the selection of heat dissipation materials and surface treatments can also be considered effective in improving the heat dissipation effect.

[0065] In this embodiment, the heat sink module includes a heat absorption tube 600 connected to the heating surface of the power supply 400 fixed in the housing 100, and a phase change material is enclosed in the heat absorption tube 600. There are many conventional heat dissipation methods, such as using a heat sink, a fan, or other cooling devices to increase the heat dissipation surface area and improve the heat dissipation efficiency.

[0066] In this embodiment, the heat pipe is a heat dissipation element that utilizes the phenomenon in which a liquid absorbs heat when it changes into a gas and releases heat when it returns from a gas to a liquid, and is capable of quickly transferring heat from one location to another.

[0067] Compared with common metal plates, heat pipes have the following advantages:

[0068] 1. High heat transfer rate and effective heat removal.

[0069] 2. Long heat transfer distance, effectively dissipating heat.

[0070] 3. Because heat is transferred without moving parts, heat pipes are quiet, noiseless, maintenance-free, and highly reliable.

[0071] While thermoelectric cooling devices have the advantage of low noise, traditional cooling methods often generate significant noise and require additional housing openings, potentially compromising the housing's dust and water resistance. Encapsulating the phase-change material in a brass tube for greater exposure to the ambient environment improves heat transfer efficiency. The heat sink temperature increases with the thermoelectric module's operating temperature until a certain point is reached, at which point the phase-change material begins to melt and absorb excess heat from the system, allowing for more effective heat absorption. Once all the phase-change material has melted and reached the desired temperature, it must be allowed to rest to avoid overheating. Its reusable heat absorption and dissipation capabilities allow it to begin re-solidifying and return to its original state.

[0072] The use of phase change material in the absorber tube for heat absorption offers the following advantages over conventional air cooling:

[0073] 1. No fans or mechanical parts are required, so there is no noise.

[0074] 2. Phase change materials have high heat capacity and thermal conductivity, allowing for rapid heat absorption and dissipation. Compared with fan cooling, cooling with phase change materials can be more effective in reducing equipment temperature and improving heat dissipation.

[0075] 3. Cooling with phase change materials does not require an additional power source and therefore does not consume extra energy. Compared to cooling with fans, it is more energy efficient and improves the usability of portable devices.

[0076] 4. Phase change material cooling has low maintenance costs because it does not use mechanical parts. Unlike fan cooling, there is no need for periodic cleaning or fan replacement, which reduces the work and expense of equipment maintenance.

[0077] The phase change material can be an organic compound such as a hydrated salt, a mixture of hydrated salts, a paraffin compound, decanoic acid, lauric acid, stearic acid and other fatty acids, etc. The melting point setting of the phase change material is determined by the use conditions, the operating temperature and the ambient temperature.

[0078] In this embodiment, a heat sink module temperature sensor is also included. The heat sink module temperature sensor is fixed within the housing 100 and connected to the central control module. The heat sink module temperature sensor is used to monitor the temperature of the heat sink module and provide feedback to the central control module. In thermoelectric cooling applications, monitoring the heat sink temperature is crucial because it directly affects the heat dissipation efficiency of the thermoelectric cooler. If the heat sink temperature is too high, the TEC cooling capacity will be reduced, resulting in a reduced cooling effect. Monitoring the heat sink temperature allows the heat dissipation system to be adjusted and optimized in time to ensure efficient thermoelectric cooling. Furthermore, if the heat sink temperature becomes excessively high, the heat sink and surrounding components may become overheated, resulting in failure or damage. Monitoring the heat sink temperature allows for timely detection of temperature abnormalities, thereby enabling appropriate measures to ensure system safety. The life and stability of the thermoelectric cooler are also closely related to the heat sink temperature. If the heat sink temperature is too high, the operating temperature of the thermoelectric cooler will increase, aging will be accelerated, and the lifespan will be shortened. Temperature changes also affect the stability and performance of the thermoelectric cooler. By monitoring the heat sink temperature, it is possible to control the operating temperature of the thermoelectric cooler within an appropriate range, thereby extending its lifespan and improving its stability.

[0079] In another embodiment, a vibration module is also included, which is fixed within the housing 100 and connected to the central control module, and is installed within the housing 100 to generate vibrations of the housing 100 and the cooling head 300 to achieve a massage effect on the skin.

[0080] Cold therapy can effectively reduce pain and inflammation, while vibrations from the vibration module can stimulate the skin and muscles to relieve and distract from itching and pain sensations. Using both in combination can provide more effective pain relief.

[0081] The vibration of the vibration module can promote local blood circulation and increase blood flow, while the cooling can constrict blood vessels and reduce local blood flow. By using both in combination, it is possible to achieve better blood circulation during cold therapy.

[0082] The combined use of cold therapy and vibration can accelerate the recovery of injured areas. Cold therapy can alleviate tissue damage by reducing inflammation and swelling. The vibration module can increase local blood circulation, improving nutrient supply to muscles and tissues and accelerating the recovery and repair process.

[0083] The vibration of the vibration module can help relieve muscle tension, thereby reducing muscle fatigue and tension. Cold therapy can reduce muscle pain and discomfort by reducing local temperature. The combination of both can provide better muscle relaxation.

[0084] In another embodiment, LEDs used for light therapy are also included. The LEDs can be red light LEDs, blue light LEDs, and any combination of these colors.

[0085] Cold therapy can reduce inflammation and swelling, and light therapy has been shown to have anti-inflammatory effects. Combining cold therapy and light therapy can more effectively alleviate inflammatory responses and reduce pain and discomfort. Light therapy has been widely applied in tissue repair and wound reconstruction. Light therapy promotes cellular metabolism, increases the production of ATP cellular energy, and accelerates the wound healing process and tissue repair process. Cold therapy can reduce blood flow to a local area, reducing inflammatory responses and providing a better environment for tissue repair.

[0086] Light therapy has been shown to have antibacterial effects and be effective in killing bacteria and reducing the risk of infection. The combination of cold therapy and light therapy can provide additional antibacterial benefits during cold therapy, which may be beneficial for wound healing after trauma or surgery.

[0087] In another embodiment, radiofrequency electrodes are also included. These radiofrequency electrodes are fixed to the surface of the housing 100 and connected to the central control module. The radiofrequency electrodes generate heat to stimulate deep skin tissue, promoting collagen regeneration and tissue tightening. However, radiofrequency therapy can cause surface skin heating and discomfort.

[0088] In this case, cold therapy can help cool the skin, reduce discomfort, and provide additional soothing benefits. Cold therapy can reduce the sensation of heat by lowering skin temperature, reducing redness and local inflammation.

[0089] When using a combination of radiofrequency electrodes and cold therapy, the general steps are as follows:

[0090] 1. Performing high frequency therapy: Place the high frequency electrodes correctly on the skin and select the appropriate energy and time as needed.

[0091] 2. Cold Therapy: After radiofrequency therapy, the thermoelectric cooling surface is gently pressed or slid over the treatment area to cool the skin.

[0092] 3. Radiofrequency electrodes can be used in combination with cold therapy to help reduce the sensation of heat and discomfort during radiofrequency therapy while simultaneously providing a soothing effect.

[0093] In another embodiment, electrotherapy electrodes are also included, which are secured to the surface of the housing 100 and connected to the central control module for use in electrotherapy.

[0094] Electrode therapy is a pain relief method that uses electrical stimulation of nerve conduction. While cold therapy reduces local temperature to reduce inflammation and swelling, electrode therapy stimulates nerves and disrupts pain signal transmission, thereby reducing the sensation of pain.

[0095] Electrotherapy can stimulate muscle fibers to reduce muscle tension and spasms, while cold therapy can reduce muscle pain and discomfort by lowering local temperature. Combining these techniques can provide better muscle relaxation.

[0096] Electrotherapy can promote local blood circulation and increase blood flow through electrical stimulation. Cold therapy can constrict blood vessels and reduce local blood flow. By combining these two, it is possible to further promote blood circulation during cold therapy.

[0097] Finally, please note that the above description is only a preferred embodiment of the present invention and should not be used to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can modify the technical solutions described in the above embodiments or replace some technical features with equivalent substitutes. Any modifications, equivalent substitutes or improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. 1. A portable skin cooling device comprising: a housing (100), said housing (100) having a chamber formed therein; a thermoelectric module (200) fixed in the chamber of the housing (100), the thermoelectric module (200) comprising a cooling surface; a cooling head (300) embedded in the surface of said housing (100), said cooling head (300) being connected to said cooling surface of said thermoelectric module (200); a power source (400) arranged in said housing (100), said power source (400) being used to supply power to said thermoelectric module (200); a PCB board (500) arranged in the housing (100), the PCB board (500) being connected to both the thermoelectric module (200) and the power source (400); Equipped with - A portable skin cooling device, wherein the thermoelectric module (200) is used for cooling, the PCB board (500) comprises a central control module, the central control module is configured to control the cooling temperature of the thermoelectric module (200), and the cooling head (300) is used to contact the skin for cold therapy.

2. The portable skin cooling device of claim 1 , wherein the thermoelectric module (200) comprises a thermoelectric cooler.

3. 3. The portable skin cooling device of claim 2, wherein the thermoelectric module (200) comprises one or more thermoelectric coolers arranged by stacking cold and hot surfaces or arranged in a planar array.

4. 10. The portable skin cooling device of claim 1, further comprising a cooling temperature sensor, the cooling temperature sensor being disposed within the housing and connected to the PCB board, the cooling temperature sensor being used for monitoring temperature data of the cooling head and feeding back to the central control module.

5. 10. The portable skin cooling device of claim 1, wherein the housing (100) comprises a heat sink module, the thermoelectric module (200) comprises a cooling surface and a heating surface, and the heat sink module is connected to the heating surface.

6. 6. The portable skin cooling device of claim 5, wherein the heat sink module comprises a heat pipe (600) connected to the heating surface of the thermoelectric power source (400) fixed within the housing (100), and wherein a phase change material is enclosed within the heat pipe (600).

7. 6. The portable skin cooling device of claim 5, further comprising a heat sink module temperature sensor, the heat sink module temperature sensor fixed within the housing (100) and connected to the central control module, the heat sink module temperature sensor being used for monitoring the temperature of the heat sink module and providing feedback to the central control module.

8. 10. The portable skin cooling device of claim 1, further comprising a vibration module secured within the housing and connected to the central control module.

9. 10. The portable skin cooling device of claim 1, further comprising an LED phototherapy module and a radiofrequency treatment electrode.

10. 10. The portable skin cooling device of claim 1, further comprising an electrotherapy electrode, the electrotherapy electrode being fixed to a surface of the housing (100) and connected to the central control module, the electrotherapy electrode being used for electrotherapy.

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