Cold and heat therapy system, control method thereof, and cold and heat therapy machine

Abstract

The application discloses a cold and hot therapy system, a control method thereof and a cold and hot therapy machine. The cold and hot therapy system comprises a cold and hot semiconductor, a cold flow tank, a hot flow tank and a temperature-guiding bag. The cold and hot semiconductor has a refrigeration surface and a heating surface. The cold flow tank is in temperature-guiding connection with the refrigeration surface. The hot flow tank is in temperature-guiding connection with the heating surface. The temperature-guiding bag is used for being attached to a human body and is provided with a temperature-guiding flow channel. The temperature-guiding flow channel is selectively in communication with the cold flow tank or the hot flow tank. The cold and hot therapy system has the temperature-guiding flow channel in the temperature-guiding bag, and the temperature-guiding flow channel is selectively in communication with the cold flow tank or the hot flow tank. Therefore, a user can realize quick switching between cold therapy and hot therapy modes on the same system through simple operation (for example, switching a connecting pipeline or operating a valve). The integrated and switchable design greatly improves user experience and treatment convenience, and improves energy utilization.

Description

Technical Field

[0001] This invention relates to the field of cryotherapy system technology, and particularly to a cryotherapy system, its control method, and a cryotherapy machine. Background Technology

[0002] Cryotherapy is a common physical therapy method widely used in sports injuries, postoperative rehabilitation, chronic pain, and inflammation reduction. Local cooling (cryotherapy) constricts blood vessels, reduces tissue exudation, and relieves swelling and pain. Currently, various cryotherapy devices on the market utilize thermoelectric cooling (TEC) to achieve active cooling. These devices typically connect the cooling surface of the TEC to a heat-conducting component (such as a water-circulating cooling pack), applying a cold compress to the affected area through a circulating low-temperature medium.

[0003] Due to the conservation of heat, the heating surface heats up while the cooling surface cools down. To achieve the cooling effect of the cooling surface, the heat from the heating surface needs to be dissipated in a timely and rapid manner. Currently, the heat dissipation of the heating surface is achieved by directly expelling it into the environment through radiators or fans. The greater the required cooling capacity, the higher the requirements for the heat dissipation capacity of the heating surface.

[0004] Heat therapy, which raises the temperature of a local area, promotes blood circulation, relaxes muscles, and accelerates the removal of metabolic waste. Heat therapy is usually achieved with the help of additional heat therapy devices (such as electric heating pads, hot water bottles, etc.), increasing costs and the space required for the equipment. Summary of the Invention

[0005] The main objective of this invention is to propose a cryotherapy system that enables rapid switching between cryotherapy and thermotherapy, simultaneous separate cryotherapy and thermotherapy, and seamless switching between the two.

[0006] To achieve the above objectives, the cold and heat therapy system proposed in this invention includes: A hot-cold semiconductor, wherein the hot-cold semiconductor has a cooling surface and a heating surface; A cold flow chamber, wherein the cold flow chamber is thermally conductively connected to the cooling surface; A heat exchange chamber, wherein the heat exchange chamber is thermally conductively connected to the heating surface; and A heat-conducting bag, used for application to the human body, is provided with heat-conducting channels, wherein: The temperature-conducting channel may be optionally connected to either the cold flow box or the hot flow box; or There are two temperature-conducting bags, one of which is connected to the cold flow box and the other is connected to the hot flow box.

[0007] Optionally, the cold flow box is connected to the heat conduction bag through a first cold flow circuit, and the cold and heat therapy system further includes a cold flow valve disposed in the first cold flow circuit, the cold flow valve being used to control the on / off state of the first cold flow circuit; And / or, the heat flow box is connected to the temperature conduction bag through a first heat flow circuit, and the heat flow box further includes a heat flow valve disposed in the first heat flow circuit, the heat flow valve being used to control the on / off state of the first heat flow circuit.

[0008] Optionally, the first cold flow circuit includes a first supply pipe and a first return pipe, the first supply pipe connecting the cold flow box to the temperature-conducting channel, and the first return pipe connecting the cold flow box to the temperature-conducting channel; the cold flow valve includes a first control valve and a second control valve, the first control valve being used to control the on / off state of the first supply pipe, and the second control valve being used to control the on / off state of the first return pipe; And / or, the first heat flow circuit includes a second supply line and a second return line, the second supply line connecting the heat flow box to the temperature conduction channel, and the second return line connecting the heat flow box to the temperature conduction channel; the heat flow valve includes a third control valve and a fourth control valve, the third control valve being used to control the on / off state of the second supply line, and the fourth control valve being used to control the on / off state of the second return line.

[0009] Optionally, the first cold flow circuit includes a first supply pipe and a first return pipe. The first supply pipe connects the cold flow chamber to the temperature-conducting channel, and the first return pipe connects the cold flow chamber to the temperature-conducting channel. The cold flow valve includes a first control valve and a first check valve. The first control valve is used to control the opening and closing of the first supply pipe, and the first check valve is located in the first return pipe. The first check valve connects the first return pipe from the temperature-conducting bladder towards the cold flow chamber. And / or, the first heat flow circuit includes a second supply line and a second return line, the second supply line connecting the heat flow box to the temperature conduction channel, and the second return line connecting the heat flow box to the temperature conduction channel; the heat flow valve includes a third control valve and a second check valve, the third control valve being used to control the on / off state of the second supply line, and the second check valve being located in the second return line, the second check valve connecting the second return line from the temperature conduction bag toward the heat flow box.

[0010] Optionally, the cryotherapy system further includes a first fluid actuator, which drives the heat-conducting medium in the cold flow chamber to flow along the first cold flow loop; And / or, the thermotherapy system further includes a second fluid actuator for driving the heat-conducting medium within the heat flow chamber to flow along the first heat flow loop.

[0011] Optionally, the first and second delivery lines are connected to the heat-conducting bag via a common delivery line. The cryotherapy system further includes a first fluid actuator disposed in the common delivery line. The first fluid actuator is used to drive the heat-conducting medium of the first or second delivery line to flow to the heat-conducting bag. And / or, the first return line and the second return line are connected to the heat-conducting bag through a common return line, and the thermotherapy system further includes a second fluid actuator disposed in the common return line, the second fluid actuator being used to drive the heat-conducting medium of the heat-conducting bag to flow to the first return line or the second return line.

[0012] Optionally, the thermotherapy system further includes a heat dissipation unit, wherein the heating surface is partially connected to the heat flow box and partially connected to the heat dissipation unit.

[0013] Optionally, the two heat-conducting bags include a first heat-conducting bag and a second heat-conducting bag, the cold flow chamber is connected to the first heat-conducting bag through a second cold flow circuit, and the cryotherapy system further includes a third fluid actuator disposed in the second cold flow circuit, the third fluid actuator being used to drive the heat-conducting medium in the cold flow chamber to flow along the second cold flow circuit; and / or, The heat flow chamber is connected to the second heat conduction bag through the second heat flow circuit. The thermotherapy system also includes a fourth fluid actuator disposed in the second heat flow circuit. The fourth fluid actuator is used to drive the heat conduction medium in the heat flow chamber to flow along the second heat flow circuit.

[0014] The present invention also proposes a control method for a cryotherapy system, for controlling the cryotherapy system as described above, the control method comprising the following steps: Get working mode instructions; Confirm the working mode command is the cryotherapy command, activate the cold and hot semiconductor, control the cold flow valve to open the first cold flow circuit, and control the hot flow valve to disconnect the first hot flow circuit; The working mode command is confirmed to be a hyperthermia command. The hot and cold semiconductor is activated, the hot flow valve is controlled to open the first hot flow circuit, and the cold flow valve is controlled to close the first cold flow circuit.

[0015] Optionally, the first cold flow circuit includes a first supply pipe and a first return pipe, the first supply pipe connecting the cold flow box to the temperature-conducting channel, and the first return pipe connecting the cold flow box to the temperature-conducting channel; the cold flow valve includes a first control valve and a second control valve, the first control valve being used to control the on / off state of the first supply pipe, and the second control valve being used to control the on / off state of the first return pipe; The first heat flow circuit includes a second supply line and a second return line. The second supply line connects the heat flow box to the temperature-conducting channel, and the second return line connects the heat flow box to the temperature-conducting channel. The heat flow valve includes a third control valve and a fourth control valve. The third control valve is used to control the on / off state of the second supply line, and the fourth control valve is used to control the on / off state of the second return line. The first and second delivery lines are connected to the heat-conducting bag via a common delivery line. The cryotherapy system also includes a first fluid actuator located in the common delivery line. The first fluid actuator is used to drive the heat-conducting medium of the first or second delivery line to flow to the heat-conducting bag. The first return line and the second return line are connected to the heat-conducting bag through a common return line. The thermotherapy system also includes a second fluid actuator located in the common return line. The second fluid actuator is used to drive the heat-conducting medium of the heat-conducting bag to flow to the first return line or the second return line. The steps of confirming the working mode command as a cryotherapy command, activating the cryo-thermal semiconductor, controlling the cold flow valve to open the first cold flow circuit, and controlling the hot flow valve to disconnect the first hot flow circuit include: The working mode command is confirmed to be the cryotherapy command. The cryo-thermal semiconductor is activated, the first control valve is controlled to disconnect the first supply line, the second control valve is controlled to disconnect the first return line, the third control valve is controlled to disconnect the second supply line, the fourth control valve is controlled to open the second return line, and the second fluid actuator is activated to discharge the heat transfer medium in the heat transfer bag to the heat flow box. Once it is confirmed that the heat transfer medium in the heat transfer bag has been discharged, the first control valve is controlled to open the first supply pipeline, the second control valve is controlled to open the first return pipeline, the fourth control valve is controlled to disconnect the second return pipeline, and the first fluid actuator is started. The steps of confirming the working mode command as a hyperthermia command, activating the hot and cold semiconductor, controlling the hot flow valve to open the first hot flow circuit, and controlling the cold flow valve to disconnect the first cold flow circuit include: The working mode command is confirmed to be a hyperthermia command. The thermo-thermal semiconductor is activated, the first control valve is controlled to disconnect the first supply line, the second control valve is controlled to open the first return line, the third control valve is controlled to disconnect the second supply line, the fourth control valve is controlled to disconnect the second return line, and the second fluid actuator is activated to discharge the heat transfer medium in the heat transfer bag to the cold flow box. Once it is confirmed that the heat transfer medium in the heat transfer bag has been discharged, the second control valve is controlled to disconnect the first return line, the third control valve is controlled to open the second supply line, the fourth control valve is controlled to open the second return line, and the first fluid actuator is started.

[0016] The present invention also proposes a thermotherapy machine, including a housing and a thermotherapy system as described above, wherein the thermotherapy system’s thermotherapy semiconductor, cold flow chamber and hot flow chamber are all installed inside the housing.

[0017] The cold and heat therapy system of the present invention, When there is only one temperature-conducting bag, a temperature-conducting channel is provided through the temperature-conducting bag, and the temperature-conducting channel can be selectively connected to either the cold flow chamber or the hot flow chamber. This design allows users to quickly switch between cold therapy and heat therapy modes on the same system through simple operations (such as switching connecting pipes or operating valves). This integrated and switchable design greatly improves the user experience and the convenience of treatment, and also improves energy utilization. When there are two temperature-conducting bags, users can choose to use either one. They can select the bag connected to the cold flow chamber for cryotherapy or the bag connected to the hot flow chamber for heat therapy, achieving seamless switching between the two treatments. Both bags can also be used simultaneously. Users can use one bag for cryotherapy on one body part and the other for heat therapy on another, allowing for treatment of different body parts with a single device, thus improving the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the cold and heat therapy system of the present invention; Figure 2 This is a schematic diagram of another embodiment of the cryotherapy system of the present invention; Figure 3 This is a schematic diagram of another embodiment of the cryotherapy system of the present invention; Figure 4 This is a flowchart illustrating the control method of the cryotherapy system of the present invention; Figure 5 This is a detailed flowchart of the control method for the cryotherapy system of the present invention; Figure 6 This is a flowchart detailing another embodiment of the control method for the cryotherapy system of the present invention.

[0020] Explanation of icon numbers: The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] Existing cryotherapy devices generally suffer from a single-function problem: they only focus on the cooling surface of the semiconductor cooling chip, directly dissipating the heat generated by the heating surface into the environment through radiators or fans, resulting in a significant waste of thermal energy. Meanwhile, patients requiring thermotherapy often need to purchase separate thermotherapy devices (such as electric heating pads or hot water bottles), which not only increases costs and equipment space requirements but also prevents the rapid switching, alternating treatment, and simultaneous application of cryotherapy and thermotherapy on the same device.

[0025] This invention proposes a cryotherapy system.

[0026] In embodiments of the present invention, such as Figure 1 and Figure 2As shown, the cryotherapy system includes: a cryo-thermal semiconductor 10, which has a cooling surface and a heating surface; a cold flow chamber 20, which is thermally connected to the cooling surface; a hot flow chamber 30, which is thermally connected to the heating surface; and a heat-conducting bag 40, which is used for application to the human body and has a heat-conducting channel that can be selectively connected to either the cold flow chamber 20 or the hot flow chamber 30.

[0027] In this embodiment, the thermal semiconductor 10 is a solid-state cooling / heating device based on the Peltier effect. When current passes through the device, one side will generate an endothermic effect (cooling surface), and the other side will generate an exothermic effect (heating surface). By controlling the magnitude of the current, the intensity of its cooling or heating can be adjusted.

[0028] The cold flow box 20 is a container for storing and circulating low-temperature heat transfer medium. It is usually equipped with flow channels to ensure that the heat transfer medium can efficiently exchange heat with the cooling surface of the hot and cold semiconductor 10, thereby transferring cold energy to the heat transfer medium.

[0029] The heat flow box 30 is a container for storing and circulating high-temperature heat transfer medium. It also has flow channels inside to ensure that the heat transfer medium can efficiently exchange heat with the heating surface of the hot and cold semiconductor 10, thereby transferring heat energy to the heat transfer medium.

[0030] The heat-conducting capsule 40 is a flexible structure with internal heat-conducting channels to contain the heat-conducting medium and transfer its temperature to the application site on the human body. The heat-conducting capsule 40 is typically made of skin-friendly materials, adaptable to different body parts, and provides a comfortable application experience. The heat-conducting channels are internal passages within the heat-conducting capsule 40 that guide the flow of the heat-conducting medium within the capsule, thereby achieving uniform temperature transfer to the application site. The design of these channels maximizes heat exchange efficiency and ensures smooth circulation of the medium.

[0031] A thermally conductive connection refers to a connection method in which heat is effectively transferred between two components through direct contact or an intermediate medium (such as thermal grease, thermal pads, etc.). This connection ensures that the cold or hot energy generated by the hot and cold semiconductors 10 can be efficiently transferred to the cold flow box 20 or the hot flow box 30.

[0032] The ability to selectively connect to either the cold flow chamber 20 or the hot flow chamber 30 means that the heat-conducting channel of the temperature-conducting bag 40 can selectively establish a fluid connection with either the cold flow chamber 20 or the hot flow chamber 30 according to treatment needs. This selective connection mechanism allows the system to switch between cryotherapy and thermotherapy modes.

[0033] Specifically, the cooling / heating semiconductor 10 can be a Peltier module. When energized, one surface cools due to heat absorption, forming a cooling surface, while the other surface heats up due to heat release, forming a heating surface. The temperatures of the cooling and heating surfaces can be controlled by adjusting the current. For example, a single Peltier module can be used, or multiple Peltier modules can be connected in series or parallel to meet different cooling or heating requirements.

[0034] The cold flow box 20 can be in direct, close contact with the cooling surface to ensure efficient transfer of cold energy. Alternatively, a thermally conductive pad or thermal grease can be placed between the cold flow box 20 and the cooling surface to further optimize heat transfer efficiency. The cold flow box 20 contains a heat-conducting medium, such as water or refrigerant, to absorb the cold energy generated by the cooling surface.

[0035] The hot flow box 30 can be connected to the heating surface in a similar manner to the cold flow box 20, such as through direct contact, thermal pads, or thermal grease. The hot flow box 30 also contains a thermally conductive medium to absorb the heat generated by the heating surface. Thus, the heat generated by the hot and cold semiconductors 10 during cooling is recovered and utilized, rather than simply dissipated into the environment.

[0036] The temperature-conducting bag 40 can be designed with two independent interfaces, one for connecting to the cold flow chamber 20 and the other to the hot flow chamber 30, and can be switched manually by plugging and unplugging. For example, when cryotherapy is needed, the user can connect the interface of the temperature-conducting bag 40 to the inlet / outlet of the cold flow chamber 20; when heat therapy is needed, the interface of the temperature-conducting bag 40 can be unplugged and connected to the inlet / outlet of the hot flow chamber 30. Alternatively, the temperature-conducting bag 40 can be equipped with a simple three-way valve, which can be manually rotated to select whether the temperature-conducting flow channel is connected to the cold flow chamber 20 or the hot flow chamber 30.

[0037] When a user requires cryotherapy, the heat-conducting channel of the heat-conducting bag 40 is selectively connected to the cryotherapy chamber 20. For example, the user can manually insert the connecting tube of the heat-conducting bag 40 into the corresponding port of the cryotherapy chamber 20. At this time, the low-temperature heat-conducting medium in the cryotherapy chamber 20 is driven to enter the heat-conducting bag 40 along the heat-conducting channel and circulate inside the heat-conducting bag 40. The heat-conducting bag 40 is applied to the user's body part, and the low-temperature medium transfers cold energy to the body part through the heat-conducting bag 40, thereby achieving local cooling and relieving swelling and pain.

[0038] After cryotherapy, if the user requires heat therapy, the connection between the heat-conducting channel of the heat-conducting bag 40 and the cold flow chamber 20 is disconnected, and it is selectively connected to the heat flow chamber 30. For example, the user unplugs the connecting tube of the heat-conducting bag 40 from the interface of the cold flow chamber 20 and inserts it into the corresponding interface of the heat flow chamber 30. Subsequently, the high-temperature heat-conducting medium in the heat flow chamber 30 is driven to enter the heat-conducting bag 40 along the heat-conducting channel and circulates inside the heat-conducting bag 40. The heat-conducting bag 40 continues to be applied to the user's body part, and the high-temperature medium transfers heat energy to the body part through the heat-conducting bag 40, thereby promoting local blood circulation and relaxing muscles.

[0039] Therefore, by utilizing the dual-sided cooling and heating characteristics of the cold and hot semiconductor 10, combined with the cold flow box 20 and the hot flow box 30 collecting cold and hot energy respectively, and the mechanism that the heat conduction bag 40 can selectively connect to either the cold flow box 20 or the hot flow box 30, users can switch between cryotherapy and thermotherapy on the same system without changing equipment, thus meeting the treatment needs at different stages.

[0040] This application features a temperature-conducting channel in the temperature-conducting bag 40, which can be selectively connected to either the cold flow box 20 or the hot flow box 30. This design allows users to quickly switch between cold and hot therapy modes on the same system through simple operations (such as switching connecting pipes or operating valves). This integrated and switchable design greatly enhances the user experience and the convenience of treatment, and also improves energy utilization.

[0041] For example, such as Figure 1 As shown, the cold flow box 20 is connected to the heat conduction bag 40 through the first cold flow circuit. The cold and heat therapy system also includes a cold flow valve located in the first cold flow circuit, which is used to control the on and off of the first cold flow circuit.

[0042] The first cold flow loop refers to the piping system used to carry the heat transfer medium circulating between the cold flow box 20 and the heat transfer bladder 40. This piping system can be composed of flexible or rigid pipes, joints, and other components to ensure the closed-loop circulation of the heat transfer medium. As another implementation, the first cold flow loop can also adopt an integrally formed flow channel structure, such as a pre-set fluid channel inside the equipment, to reduce connection points and leakage risks.

[0043] A cold flow valve is a fluid control device used to regulate or completely block the flow of the heat-conducting medium in a primary cold flow circuit. This cold flow valve can be a solenoid valve, controlling its opening and closing via electrical signals for rapid response and automated control. Alternatively, a manual ball valve or shut-off valve can be used, controlling fluid flow through mechanical operation, suitable for scenarios where a high degree of automation is not required.

[0044] The cold flow valve controls the on / off state of the first cold flow circuit. Its function is to precisely start or stop the circulation of the cold medium in the first cold flow circuit according to the system's operating mode requirements, thereby turning the cryotherapy mode on or off. Specifically, the cold flow valve can be driven by a control signal. For example, when the system enters cryotherapy mode, the cold flow valve opens, allowing the cold medium to flow; when exiting cryotherapy mode, the cold flow valve closes, preventing the cold medium from flowing. Furthermore, this control function can be combined with a temperature sensor and controller to automatically adjust the opening of the cold flow valve based on real-time temperature feedback from the temperature-conducting bag 40, to maintain the set cryotherapy temperature, or to close the first cold flow circuit after reaching the target temperature to save energy.

[0045] By introducing a combination of a first cold flow circuit and a cold flow valve, a dedicated connection path is established between the cold flow chamber 20 and the heat-conducting bag 40, ensuring that the cold flow medium can be effectively transferred to the heat-conducting bag 40. When the system needs to perform cryotherapy, the cold flow valve is opened, allowing the heat-conducting medium cooled by the cold and hot semiconductor 10 in the cold flow chamber 20 to flow smoothly into the heat-conducting bag 40, thereby providing effective cold compress to the application site. Conversely, when the system is in a non-cold therapy mode (such as heat therapy mode or standby state), the cold flow valve is closed, thereby preventing the flow of the cold flow medium in the first cold flow circuit. This design avoids ineffective circulation of the cold flow medium in non-cold therapy modes, prevents unnecessary energy loss, and ensures that the heat-conducting bag 40 is not interfered with by the cold flow medium in heat therapy mode, thus realizing flexible switching between cold and heat therapy modes and precise temperature control.

[0046] For example, such as Figure 1 As shown, the first cold flow circuit includes a first supply pipe 21 and a first return pipe 22. The first supply pipe 21 connects the cold flow box 20 to the temperature conduction channel, and the first return pipe 22 connects the cold flow box 20 to the temperature conduction channel. The cold flow valve includes a first control valve 23 and a second control valve 24. The first control valve 23 is used to control the opening and closing of the first supply pipe 21, and the second control valve 24 is used to control the opening and closing of the first return pipe 22.

[0047] The first delivery conduit 21 is the channel in the first cold flow circuit responsible for transporting the low-temperature heat-conducting medium in the cold flow box 20 to the temperature-conducting flow channel. Its function is to ensure that the cold medium can efficiently and stably reach the application end (temperature-conducting bag 40) from the cooling source end (cold flow box 20), thereby achieving effective cooling of the human body application area. This conduit can be made of materials with good thermal insulation properties to reduce temperature loss of the medium during transportation. For example, double-layered thermal insulation pipes or thermal insulation materials can be used to wrap the outside of the conduit.

[0048] The first return line 22 is the channel in the first cold flow circuit responsible for recovering the heat-conducting medium that has completed heat exchange within the heat-conducting capsule 40 back to the cold flow box 20. Its function is to form a complete circulation path, allowing the heat-conducting medium to be continuously cooled and reused, maintaining the system's cryotherapy capacity. The design of this line should ensure smooth return flow, avoiding medium stagnation or poor return flow that could lead to a decrease in system efficiency. For example, it can use the same or similar materials and structures as the first supply line 21, and consider minimizing fluid resistance in the design.

[0049] The first control valve 23 is a component of the cold flow valve and is specifically used to control the on / off state of the first flow supply line 21. By controlling the opening and closing of the first control valve 23, the delivery of the low-temperature heat transfer medium to the temperature-conducting bladder 40 can be precisely controlled. This allows the system to flexibly start or stop the cryotherapy process and prevents the misdelivery of the cold medium in non-cryotherapy mode. The first control valve 23 can be a two-way or three-way solenoid valve, ball valve, or shut-off valve to achieve precise control of the fluid path.

[0050] The second control valve 24 is a component of the cold flow valve and is specifically used to control the opening and closing of the first return line 22. By controlling the opening and closing of the second control valve 24, the heat transfer medium can be precisely controlled to return from the heat transfer bladder 40 to the cold flow chamber 20. This allows the system to independently manage the return process, ensuring that the medium in the heat transfer bladder 40 can be effectively discharged or recovered when the cryotherapy mode is switched or stopped, thereby avoiding medium stagnation or mixing. The second control valve 24 can also be a two-way or three-way solenoid valve, ball valve, or shut-off valve, working in conjunction with the first control valve 23.

[0051] The first supply line 21 is responsible for transporting the low-temperature heat-conducting medium cooled by the cooling surface of the thermoelectric 10 in the cold flow box 20 to the temperature-conducting channel of the temperature-conducting bladder 40, while the first return line 22 recovers the heat-conducting medium from the temperature-conducting bladder 40 back to the cold flow box 20 after heat exchange. This bidirectional path design ensures that the supply and return processes of the cold medium are independent of each other, avoiding blockages or inefficiencies that may occur with unidirectional flow. At the same time, the first control valve 23 is specifically used to control the opening and closing of the first supply line 21, allowing precise adjustment of the timing and flow rate of the cold medium; the second control valve 24 independently controls the opening and closing of the first return line 22, realizing fine management of the return process.

[0052] When the system is in cryotherapy mode, the thermoelectric cooler 10 is activated, and its cooling surface cools the heat-conducting medium in the cold flow chamber 20. At this time, the first control valve 23 and the second control valve 24 open simultaneously, and the first supply pipe 21 delivers the low-temperature medium to the heat-conducting bag 40. The heat-conducting bag 40 exchanges heat with the human body patch, absorbing heat from the body, and the medium temperature rises. It then returns to the cold flow chamber 20 through the first return pipe 22 and is cooled again, forming an efficient and stable closed loop. This independent control of supply and return flow design allows the system to precisely control the circulation of the cold medium according to actual needs. For example, before starting cryotherapy, the supply pipe can be closed first, and the supply pipe can be opened after the return pipe has emptied the residual medium in the heat-conducting bag 40, thereby avoiding the mixing of media of different temperatures and ensuring the purity and stability of the cryotherapy effect.

[0053] For example, the first cold flow circuit includes a first supply pipe 21 and a first return pipe 22. The first supply pipe 21 connects the cold flow box 20 to the temperature conduction channel, and the first return pipe 22 connects the cold flow box 20 to the temperature conduction channel. The cold flow valve includes a first control valve 23 and a first check valve. The first control valve 23 is used to control the opening and closing of the first supply pipe 21, and the first check valve is located in the first return pipe 22. The first check valve connects the first return pipe 22 from the temperature conduction bag 40 toward the cold flow box 20.

[0054] The specific forms and functions of the first supply line 21, the first return line 22, and the first control valve 23 can be referred to the above embodiments and will not be repeated here. The first one-way valve connects the first return line 22 from the temperature-conducting bladder 40 to the cold flow box 20. This installation position and working direction utilize its unidirectional conduction characteristic to ensure that the heat transfer medium can only flow from the temperature-conducting bladder 40 back to the cold flow box 20 without additional active control, effectively preventing backflow of the medium in the return line, thereby simplifying the control logic and improving the reliability of the system. The implementation method can be to directly integrate the first one-way valve into the first return line 22, or to connect it through a standard interface.

[0055] In the first return line 22, a first one-way valve ensures that the medium can only flow from the heat-conducting bladder 40 to the cold flow box 20, effectively preventing any possible backflow. This design allows the heat-conducting medium to form a stable closed loop, continuously transferring cold energy from the cold flow box 20 to the heat-conducting bladder 40 and removing the heat absorbed by the heat-conducting bladder 40, thereby maintaining the cryotherapy effect.

[0056] Compared to traditional solutions that require multiple control valves to manage the return pipeline, this solution cleverly utilizes the physical characteristics of the first check valve, enabling it to automatically achieve unidirectional flow of the return medium without the need for external control signals. This not only significantly simplifies the structure of the cold flow valve and reduces the number of required components, but also lowers the control complexity of the system.

[0057] For example, such as Figure 1 As shown, the cryotherapy system also includes a first fluid actuator 51, which drives the heat-conducting medium in the cold flow box 20 to flow along the first cold flow loop.

[0058] The first fluid actuator 51 is a device capable of providing power to a fluid. Its function is to overcome the resistance generated when the fluid flows in a pipeline, ensuring that the heat transfer medium circulates in the first cold flow loop at a preset flow rate and volume. This fluid actuator can be any pump-type device capable of fluid transport. For example, it can be a miniature water pump that uses impeller rotation to generate centrifugal force to propel the liquid; or it can be a peristaltic pump that forces the liquid forward by squeezing a hose, thereby achieving precise flow control and preventing media contamination. Alternatively, a diaphragm pump can be used, which uses the reciprocating motion of a diaphragm to draw in and discharge liquid.

[0059] The first fluid actuator 51, through its working principle, forcibly delivers the heat-conducting medium cooled by the cooling surface in the cold flow box 20 into the first cold flow circuit. This medium flows through the heat-conducting channels of the heat-conducting bag 40, completes heat exchange, and then returns to the cold flow box 20. This driving process ensures the continuous circulation of the heat-conducting medium throughout the entire first cold flow circuit, thereby effectively transferring the cooling capacity of the cold flow box 20 to the heat-conducting bag 40 and removing the heat absorbed by the heat-conducting bag 40 from the human body. For example, the first fluid actuator 51 can be located at the outlet of the cold flow box 20 to pump the cooled medium into the first cold flow circuit; or it can be located at the return outlet of the first cold flow circuit to draw the medium from the heat-conducting bag 40 back into the cold flow box 20, forming a closed loop.

[0060] When the cryotherapy system performs cryotherapy, the cryo-thermal semiconductor 10 operates, and its cooling surface is thermally connected to the cold flow chamber 20, cooling the heat-conducting medium inside the cold flow chamber 20. At this time, the cold flow valve opens the first cold flow circuit. The first fluid actuator 51 is activated, actively applying a driving force to the low-temperature heat-conducting medium inside the cold flow chamber 20, forcing the medium to leave the cold flow chamber 20 and enter the first cold flow circuit. Under the action of the first fluid actuator 51, the heat-conducting medium overcomes the pipeline resistance and flows along the first cold flow circuit, passing through the temperature-conducting channel of the temperature-conducting bag 40, exchanging heat with the body application site, and absorbing body heat. Subsequently, the heated heat-conducting medium continues to return to the cold flow chamber 20 along the first cold flow circuit under the drive of the first fluid actuator 51, and is cooled again by the cooling surface of the cryo-thermal semiconductor 10, forming a continuous and efficient closed loop. This active driving mechanism ensures that the low-temperature heat-conducting medium can be stably and adequately delivered to the heat-conducting bladder 40 and promptly carry the heat back to the cold flow chamber 20, thereby maintaining the low-temperature state of the heat-conducting bladder 40 and achieving a continuous and effective cryotherapy effect.

[0061] For example, such as Figure 1 As shown, the heat flow box 30 is connected to the temperature conduction bag 40 through the first heat flow circuit. The heat flow box 30 also includes a heat flow valve disposed in the first heat flow circuit, which is used to control the on / off state of the first heat flow circuit.

[0062] The first heat flow circuit is a fluid passage connecting the heat flow chamber 30 and the heat-conducting bag 40, used to transport the heat-carrying medium. The first heat flow circuit ensures that the heat in the heat flow chamber 30 can be carried away by the heat-conducting medium and effectively transferred to the heat-conducting bag 40, thereby providing heat therapy to the human body. The first heat flow circuit is typically composed of flexible or rigid tubing, which needs to have good temperature and pressure resistance to adapt to temperature and pressure changes of the heat-conducting medium during circulation. The implementation of the first heat flow circuit can include, but is not limited to: connecting the inlet and outlet of the heat flow chamber 30 with the inlet and outlet of the heat-conducting bag 40 using high-temperature resistant silicone or polyurethane tubing; or using rigid plastic or metal tubing connected to the heat flow chamber 30 and the heat-conducting bag 40 via quick-connect fittings or threaded connections.

[0063] The heat flow valve is a control device installed in the first heat flow circuit, and its main function is to control the opening and closing of the first heat flow circuit. By opening or closing the heat flow valve, the flow of the heat transfer medium in the first heat flow circuit can be precisely controlled, thereby determining whether heat is transferred to the heat transfer bag 40. The implementation of the heat flow valve can include, but is not limited to: a solenoid valve, which controls the opening and closing of the valve through an electrical signal to achieve automatic control; or a manual ball valve or shut-off valve, which controls the opening and closing of the flow path by manually operating a knob or handle. Here, "connection" refers to the connection in the fluid passage, that is, the heat flow box 30 and the heat transfer bag 40 form a closed or open fluid circulation system through the first heat flow circuit, allowing the heat transfer medium to flow in it. This connection can be a direct pipeline connection or an indirect connection achieved through intermediate joints, pumps, or other components, but its core is to ensure the smooth flow of the heat transfer medium.

[0064] When heat therapy is needed, the heat flow valve is turned on, allowing the heated heat transfer medium in the heat flow chamber 30 to circulate through the first heat flow loop to the heat transfer bag 40, where it exchanges heat with the body to achieve the purpose of heat therapy. Simultaneously, after heat exchange, the heat transfer medium returns to the heat flow chamber 30 through the first heat flow loop to be heated again, forming a continuous heat cycle. When heat therapy is not needed, the heat flow valve is turned off, preventing the heat transfer medium from flowing in the first heat flow loop, thus cutting off heat transfer to the heat transfer bag 40 and avoiding unnecessary heat transfer and energy loss. This design allows the thermotherapy system to not only control the first cold flow loop for cold therapy via the cold flow valve but also independently control the first hot flow loop for heat therapy via the heat flow valve, greatly improving the system's functional integrity and operational flexibility.

[0065] For example, such as Figure 1 As shown, the first heat flow circuit includes a second supply line 31 and a second return line 32. The second supply line 31 connects the heat flow box 30 to the temperature conduction channel, and the second return line 32 connects the heat flow box 30 to the temperature conduction channel. The heat flow valve includes a third control valve 33 and a fourth control valve 34. The third control valve 33 is used to control the on / off state of the second supply line 31, and the fourth control valve 34 is used to control the on / off state of the second return line 32.

[0066] The second delivery line 31 is a key component of the first heat flow loop, and its function is to transport the heated heat transfer medium in the heat flow box 30 to the heat transfer channel of the heat transfer bag 40. This line can be an independent pipe, with one end connected to the outlet of the heat flow box 30 and the other end connected to the inlet of the heat transfer bag 40. To ensure minimal heat loss during the transport process, the line material can be selected from materials with good thermal insulation properties and heat and pressure resistance, such as medical-grade silicone tubing or polypropylene tubing with an insulation layer.

[0067] The second return line 32 is another important component of the first heat flow loop. Its function is to recover the heat-conducting medium, after heat exchange, from the temperature-conducting channel of the temperature-conducting bladder 40 back to the heat flow box 30 to form a complete cycle. This line can be an independent pipe, with one end connected to the outlet of the temperature-conducting bladder 40 and the other end connected to the inlet of the heat flow box 30. Similar to the second supply line 31, the pipe material should ensure smooth return of the medium and can be made of the same heat-resistant and pressure-resistant material as the second supply line 31.

[0068] The third control valve 33 is a component of the heat flow valve, and its function is to control the on / off state of the second flow pipeline 31. By controlling the opening or closing of this valve, the flow of the heat medium from the heat flow box 30 to the temperature bladder 40 can be precisely controlled. This valve can be implemented in various forms, such as a solenoid valve, a pneumatic valve, or a manual ball valve. Among them, the solenoid valve controls the rapid opening or closing of the valve by receiving an electrical signal, thereby achieving precise and automated control of fluid delivery; the manual ball valve adjusts the on / off state by manually rotating the handle.

[0069] The fourth control valve 34 is also a component of the heat flow valve, and its function is to control the opening and closing of the second return line 32. By controlling the opening or closing of this valve, the return of the heat medium from the temperature conducting bladder 40 to the heat flow box 30 can be independently controlled. Similar to the third control valve 33, this valve can also be in the form of a solenoid valve, a pneumatic valve, or a manual ball valve. For example, a normally closed solenoid valve opens when it receives an opening command, ensuring that the return path is opened as needed, thereby preventing medium stagnation or backflow.

[0070] By specifically designing the first heat flow loop to include a second supply line 31 and a second return line 32, and by making the heat flow valve consist of a third control valve 33 and a fourth control valve 34, refined management of the heat flow process is achieved. The second supply line 31 is responsible for transporting the heated heat transfer medium in the heat flow box 30 to the temperature conduction channel of the temperature conduction bag 40, while the second return line 32 recovers the medium that has completed heat exchange back to the heat flow box 30, thus establishing a clear and complete medium circulation path. The third control valve 33 independently controls the opening and closing of the second supply line 31 to ensure accurate delivery of the heat transfer medium; the fourth control valve 34 independently controls the opening and closing of the second return line 32 to ensure efficient return of the medium and prevent stagnation or backflow. This structured first heat flow loop design and refined valve control enable the heat transfer medium to form a stable and efficient circulation between the heat flow box 30 and the temperature conduction bag 40.

[0071] For example, the first heat flow circuit includes a second supply line 31 and a second return line 32. The second supply line 31 connects the heat flow box 30 to the temperature conduction channel, and the second return line 32 connects the heat flow box 30 to the temperature conduction channel. The heat flow valve includes a third control valve 33 and a second check valve. The third control valve 33 is used to control the opening and closing of the second supply line 31, and the second check valve is located in the second return line 32. The second check valve connects the second return line 32 from the temperature conduction bag 40 toward the heat flow box 30.

[0072] The specific forms and functions of the second supply line 31, the second return line 32, and the third control valve 33 can be referred to the above embodiments and will not be repeated here. The second check valve is another component of the heat flow valve. Its characteristic is that it only allows the heat transfer medium to flow in one direction, that is, from the heat transfer bladder 40 to the heat flow box 30. The second check valve can be a ball valve, a lift check valve, or a swing check valve, etc., to ensure unidirectional flow of the return path and prevent backflow of the medium.

[0073] A second check valve is installed in the second return line 32. This check valve only allows the heat medium to flow from the heat transfer bladder 40 to the heat flow box 30, automatically ensuring the return direction and preventing backflow, thus avoiding the need for an additional control valve to manage the return path. This design reduces system complexity and manufacturing costs by reducing the number of control elements, while maintaining the reliability and efficiency of heat flow control.

[0074] When hyperthermia is required, the third control valve 33 opens the second supply line 31, driving the heat medium in the heat chamber 30 to flow into the temperature-conducting channel of the temperature-conducting bag 40. After heat exchange with the human body in the temperature-conducting channel, the temperature of the heat medium decreases, and then it returns to the heat chamber 30 through the second return line 32. Because the second return line 32 is equipped with a second one-way valve, this valve ensures that the medium can only flow from the temperature-conducting bag 40 to the heat chamber 30, effectively preventing backflow and thus ensuring a stable unidirectional circulation of the first heat flow circuit. When hyperthermia is stopped, the third control valve 33 disconnects the second supply line 31, stopping the supply of heat medium and thus interrupting the heat flow circulation.

[0075] For example, such as Figure 1 As shown, the thermotherapy system also includes a second fluid actuator 52, which drives the heat-conducting medium in the heat flow box 30 to flow along the first heat flow loop.

[0076] The second fluid actuator 52 is a device that provides kinetic energy to a fluid, enabling it to circulate or be transported along a specific path. Its function is to overcome the resistance generated when the fluid flows in the pipeline, ensuring that the heat transfer medium can circulate continuously and stably in the first heat flow loop. As a specific implementation, the second fluid actuator 52 can be a miniature water pump, such as a centrifugal pump or a diaphragm pump, which generates a pressure difference through a rotating impeller or reciprocating diaphragm, thereby driving the flow of the heat transfer medium. Alternatively, the second fluid actuator 52 can also be a peristaltic pump, which propels the fluid by squeezing a flexible tube, offering advantages such as precise flow control and no contamination. The second fluid actuator 52 drives the heat transfer medium within the heat flow chamber 30 to flow along the first heat flow loop, meaning that the actuator is configured to work in conjunction with the heat flow chamber 30 and the first heat flow loop to achieve forced circulation of the heat transfer medium.

[0077] During thermotherapy in the thermotherapy system, the heating surface of the thermo-thermal semiconductor 10 transfers heat to the heat-conducting medium within the heat flow chamber 30, causing the medium to heat up. At this time, the second fluid actuator 52 is activated, actively drawing the heated heat-conducting medium from the heat flow chamber 30 and forcibly pumping it into the first heat flow loop. Under the action of the second fluid actuator 52, the heat-conducting medium flows along the first heat flow loop (e.g., through the second delivery pipe 31) to the temperature-conducting bag 40, where it exchanges heat with the application site on the body, achieving thermotherapy. After the heat exchange is complete, the heat-conducting medium returns to the heat flow chamber 30 along the first heat flow loop (e.g., through the second return pipe 32) and is reheated, forming a closed loop. This forced circulation mechanism ensures that the heat-conducting medium can flow continuously and stably in the first heat flow loop, avoiding problems such as medium stagnation, uneven local temperature, or delayed heat transfer caused by insufficient natural convection or excessive fluid resistance.

[0078] For example, such as Figure 2As shown, the first delivery pipe 21 and the second delivery pipe 31 are connected to the heat-conducting bag 40 through a common delivery pipe 41. The cryotherapy system also includes a first fluid actuator 51 disposed in the common delivery pipe 41. The first fluid actuator 51 is used to drive the heat-conducting medium of the first delivery pipe 21 or the second delivery pipe 31 to flow to the heat-conducting bag 40. And / or, the first return line 22 and the second return line 32 are connected to the heat conduction bag 40 through a common return line 42. The thermotherapy system also includes a second fluid actuator 52 disposed in the common return line 42. The second fluid actuator 52 is used to drive the heat conduction medium of the heat conduction bag 40 to flow to the first return line 22 or the second return line 32.

[0079] The shared flow line 41 serves to integrate fluid paths and reduce the number of independent pipelines. This line can be a Y-joint that merges two branches into a main line; or it can be a multi-channel manifold that achieves its confluence function through internal flow channel design. Connectivity can be achieved through direct pipe connections, such as using threaded joints, clamps, or welding to physically connect the pipelines; or through indirect connections controlled by valves, where valves are opened when needed to establish a fluid path.

[0080] The first fluid actuator 51 is physically mounted or integrated into the main body of the common flow line 41 or its upstream / downstream connection. The first fluid actuator 51 forces the heat-conducting medium from the corresponding flow line (first flow line 21 or second flow line 31) into the heat-conducting bag 40 to achieve cold or hot compress on the human body, depending on the current working mode (cold therapy or heat therapy).

[0081] The shared return pipe 42 serves to integrate the return path and reduce the number of independent pipes. This pipe can be a Y-joint, splitting the return medium of the heat-conducting bag 40 into two branches; or it can be a multi-channel manifold, achieving the splitting function through internal flow channel design. The second fluid actuator 52, according to the current operating mode, forcibly draws the heat-conducting medium from the heat-conducting bag 40 after heat exchange back to the corresponding return pipe (first return pipe 22 or second return pipe 32) to complete the circulation of the heat-conducting medium.

[0082] In cryotherapy mode, the cold flow valve opens the first cold flow circuit, the first fluid driver 51 is activated, and the low-temperature heat transfer medium in the cold flow box 20 is sent to the heat transfer bag 40 through the first flow supply pipe 21 and the common flow supply pipe 41. After heat exchange is completed, the heat transfer medium flows back to the cold flow box 20 through the common return pipe 42 and the first return pipe 22 under the action of the second fluid driver 52.

[0083] In hyperthermia mode, the heat flow valve opens the first heat flow circuit, the first fluid actuator 51 is activated, and the heat conduction medium in the heat flow box 30 is sent to the heat conduction bag 40 through the second flow line 31 and the common flow line 41. After heat exchange is completed, the heat conduction medium flows back to the heat flow box 30 through the common return line 42 and the second return line 32 under the action of the second fluid actuator 52.

[0084] This design allows the cryotherapy system to retain its original cryotherapy functions while effectively reducing the number of actuators and the complexity of the piping by sharing fluid actuators and tubing. In this way, the system can flexibly switch the flow direction of the heat transfer medium according to the operating mode command without requiring a separate drive unit for each loop, thus achieving the integration and optimization of the fluid drive function.

[0085] For example, the thermotherapy system also includes a heat dissipation unit, with the heating surface part being thermally connected to the heat flow box 30 and part being thermally connected to the heat dissipation unit.

[0086] A heat dissipation unit is a device used to conduct heat from the inside of a system to the external environment, preventing heat buildup and maintaining the system's operation within a suitable temperature range. One possible implementation is a passive heat sink, such as a finned heat sink made of a highly thermally conductive material (e.g., aluminum alloy or copper), which dissipates heat through natural convection and radiation by increasing the contact area with the air. Another possible implementation is an active heat dissipation module, such as adding a fan to the passive heat sink to accelerate heat dissipation through forced air convection, or using a liquid-cooled heat dissipation module that uses circulating coolant to remove heat.

[0087] The heating surface of the hot and cold semiconductor 10 establishes a heat conduction path with both the heat flow box 30 and the heat dissipation unit, but these paths do not completely overlap or exclusively occupy each other. Specifically, a portion of the heating surface is in thermal contact with the heat flow box 30 to transfer heat to the heat-conducting medium within the heat flow box 30 when heat therapy is required; while another portion of the heating surface is in thermal contact with the heat dissipation unit to effectively dissipate excess heat when heat therapy is not required or when the heating surface generates excessive heat.

[0088] By introducing a heat dissipation unit into the cryotherapy system and cleverly connecting the heating surface of the cryo-thermal semiconductor 10 to the heat flow chamber 30 and partly to the heat dissipation unit, precise management of the heat generated by the heating surface is achieved. When the system is in cryotherapy mode, the cryo-thermal semiconductor 10 operates, its cooling surface is used for cooling, and the heating surface generates accompanying heat. At this time, since the heat flow chamber 30 does not need to provide hyperthermia, if all the heat is transferred to the heat flow chamber 30, it will cause heat accumulation within the heat flow chamber 30, affecting system efficiency and even stability. By directing a portion of the heat from the heating surface to the heat dissipation unit, the heat dissipation unit can effectively dissipate this heat into the environment, thus avoiding unnecessary heat accumulation within the heat flow chamber 30. Simultaneously, the connection between the heating surface and the heat flow chamber 30 is retained, ensuring that when the system switches to hyperthermia mode, the heat generated by the heating surface can be smoothly transferred to the heat flow chamber 30, providing a heat source for the temperature-conducting bag 40. This design enables the cryotherapy system to efficiently handle waste heat generated by the heating surface when performing cryotherapy, maintain stable system operation, and prepare for subsequent hypertherapy functions, thereby improving the overall system's energy efficiency and the flexibility of function switching.

[0089] In another embodiment of the invention, such as Figure 3 As shown, there are two heat-conducting bags 40. One of the heat-conducting channels of the two heat-conducting bags 40 is connected to the cold flow box 20 and the other is connected to the hot flow box 30.

[0090] The two heat-conducting bags 40 can be used selectively. Users can choose to use the heat-conducting bag 40 connected to the cold flow chamber 20 for cryotherapy, or they can choose to use the heat-conducting bag 40 connected to the hot flow chamber 30 for thermotherapy, achieving seamless switching between cryotherapy and thermotherapy. For example, during cryotherapy using the cold-conducting bag, the heat-conducting medium in the hot flow chamber 30 is simultaneously heated by the heat emitted by the hot and cold semiconductors 10. Therefore, when the user switches to thermotherapy after cryotherapy, the heat-conducting medium in the hot flow chamber 30 has been heated to the preset temperature, so the user can directly use the thermotherapy bag without waiting.

[0091] The two temperature-conducting bags 40 can also be used simultaneously. Users can use one temperature-conducting bag 40 to perform cold therapy on one part of the body and use the other temperature-conducting bag 40 to perform heat therapy on another part of the body. This allows for the use of only one device to perform physiotherapy on different parts of the body, improving the user experience.

[0092] Specifically, such as Figure 3 As shown, the two heat-conducting bags include a first heat-conducting bag and a second heat-conducting bag. The cold flow box is connected to the first heat-conducting bag through a second cold flow circuit. The thermotherapy system also includes a third fluid actuator disposed in the second cold flow circuit. The third fluid actuator is used to drive the heat-conducting medium in the cold flow box to flow along the second cold flow circuit.

[0093] The second cold flow loop 25 is a piping system used to carry the heat transfer medium circulating between the cold flow box 20 and the first heat transfer bladder 43. This piping system can be composed of flexible or rigid pipes, joints, and other components to ensure the closed-loop circulation of the heat transfer medium. As another implementation, the second cold flow loop can also adopt an integrally formed flow channel structure, such as a pre-set fluid channel inside the equipment, to reduce connection points and leakage risks.

[0094] The third fluid actuator 53 is a device that provides power to a fluid, overcoming the resistance generated when the fluid flows in a pipe and ensuring that the heat transfer medium circulates in the first cold flow loop at a preset flow rate and volume. This fluid actuator can be any pump-type device capable of fluid transport. For example, it can be a miniature water pump that uses impeller rotation to generate centrifugal force to propel the liquid; or it can be a peristaltic pump that forces the liquid forward by squeezing a hose, thereby achieving precise flow control and preventing media contamination. Alternatively, a diaphragm pump can be used, which uses the reciprocating motion of a diaphragm to draw in and discharge liquid.

[0095] The third fluid actuator 53, through its working principle, forcibly transports the heat-conducting medium cooled by the cooling surface in the cold flow box 20 to the second cold flow circuit 25, allowing it to flow through the heat-conducting channels of the first heat-conducting bag 43, complete heat exchange, and then return to the cold flow box 20. This driving process ensures the continuous circulation of the heat-conducting medium throughout the entire first cold flow circuit, thereby effectively transferring the cooling capacity of the cold flow box 20 to the first heat-conducting bag 43 and removing the heat absorbed by the first heat-conducting bag 43 from the human body. For example, the third fluid actuator 53 can be located at the outlet of the cold flow box 20 to pump the cooled medium into the first cold flow circuit; or it can be located at the return port of the second cold flow circuit 25 to draw the medium from the first heat-conducting bag 43 back to the cold flow box 20, forming a closed loop.

[0096] When the cryotherapy system performs cryotherapy, the cryo-thermal semiconductor 10 operates, and its cooling surface is thermally connected to the cold flow chamber 20, cooling the heat-conducting medium within the cold flow chamber 20. At this time, the third fluid actuator 53 is activated, actively applying a driving force to the low-temperature heat-conducting medium within the cold flow chamber 20, forcing it to leave the cold flow chamber 20 and enter the second cold flow circuit 25. Under the action of the third fluid actuator 53, the heat-conducting medium overcomes pipe resistance and flows along the second cold flow circuit 25, passing through the heat-conducting channels of the first temperature-conducting bag 43, exchanging heat with the area where it is applied to the body, and absorbing body heat. Subsequently, the heated heat-conducting medium continues to return to the cold flow chamber 20 along the second cold flow circuit 25 under the drive of the third fluid actuator 53, and is cooled again by the cooling surface of the cryo-thermal semiconductor 10, forming a continuous and efficient closed loop.

[0097] The heat flow chamber is connected to the second heat conduction bag 44 through the second heat flow circuit 26. The thermotherapy system also includes a fourth fluid actuator 54 disposed in the second heat flow circuit 26. The fourth fluid actuator 54 is used to drive the heat conduction medium in the heat flow chamber to flow along the second heat flow circuit 26.

[0098] The second heat flow loop 26 is a piping system used to carry the heat transfer medium circulating between the heat flow box and the second heat transfer bladder 44. This piping system can be composed of flexible or rigid pipes, joints, and other components to ensure the closed-loop circulation of the heat transfer medium. As another implementation, the second heat flow loop 26 can also adopt an integrally formed flow channel structure, such as a pre-set fluid channel inside the equipment, to reduce connection points and leakage risks.

[0099] The fourth fluid actuator 54 is a device that provides power to a fluid, overcoming the resistance generated when the fluid flows in a pipe and ensuring that the heat transfer medium circulates in the first cold flow loop at a preset flow rate and volume. This fluid actuator can be any pump-type device capable of fluid transport. For example, it can be a miniature water pump that uses impeller rotation to generate centrifugal force to propel the liquid; or it can be a peristaltic pump that forces the liquid forward by squeezing a hose, thereby achieving precise flow control and preventing media contamination. Alternatively, a diaphragm pump can be used, which uses the reciprocating motion of a diaphragm to draw in and discharge liquid.

[0100] During thermotherapy in the thermotherapy system, the heating surface of the thermo-thermal semiconductor 10 transfers heat to the heat-conducting medium within the heat flow chamber 30, causing the medium to heat up. At this time, the fourth fluid actuator 54 is activated, actively drawing the heated heat-conducting medium from the heat flow chamber 30 and forcibly pumping it into the second heat flow circuit 26. Under the action of the fourth fluid actuator 54, the heat-conducting medium flows along the second heat flow circuit 26 to the second temperature-conducting bag 44, where it exchanges heat with the application site on the human body, achieving thermotherapy. After the heat exchange is completed, the heat-conducting medium returns to the heat flow chamber 30 along the second heat flow circuit 26 and is reheated, forming a closed loop.

[0101] like Figure 4 As shown, the present invention also proposes a control method for a cryotherapy system, for controlling the above-mentioned cryotherapy system. The control method for the cryotherapy system includes the following steps: S100, Obtain working mode command; S200, Confirm the working mode command is the cold therapy command, activate the cold and hot semiconductor 10, control the cold flow valve to open the first cold flow circuit, and control the hot flow valve to disconnect the first hot flow circuit; S300, Confirm the working mode command is the thermotherapy command, activate the hot and cold semiconductor 10, control the hot flow valve to open the first hot flow circuit, and control the cold flow valve to disconnect the first cold flow circuit.

[0102] By linking the control of the cold flow valve and the hot flow valve with the operating mode command, and combining the start and stop of the cold and hot semiconductor 10, the precise switching between the first cold flow circuit and the first hot flow circuit can be achieved.

[0103] Specifically, when the hot and cold semiconductor 10 is powered on, the cooling surface generates cold energy and the heating surface generates heat energy; the cold flow box 20 is thermally connected to the cooling surface, so that the cold energy is efficiently transferred to the heat transfer medium in the cold flow box 20; the hot flow box 30 is thermally connected to the heating surface, so that the heat energy is efficiently transferred to the heat transfer medium in the hot flow box 30.

[0104] The temperature-conducting channel of the temperature-conducting bag 40 selectively connects to either the cold flow chamber 20 or the hot flow chamber 30 according to the operating mode command: In cryotherapy mode, the cold flow valve is open while the hot flow valve is closed, allowing the low-temperature medium to flow from the cold flow chamber 20 through the temperature-conducting channel to the temperature-conducting bag 40, achieving pure cryotherapy; in thermotherapy mode, the hot flow valve is open while the cold flow valve is closed, allowing the high-temperature medium to flow from the hot flow chamber 30 through the temperature-conducting channel to the temperature-conducting bag 40, achieving pure thermotherapy. This design avoids the mixing and interference of cold and hot media, and effectively recovers and utilizes the heat generated by the heating surface in the thermotherapy process, rather than simply dissipating it.

[0105] This application requires no additional thermotherapy equipment, and users can quickly switch treatment modes on the same system, making operation simple and efficient. For example, after receiving a cold therapy command, the system activates the hot and cold semiconductor 10, the cold flow valve opens, and the low-temperature medium in the cold flow chamber 20 circulates to the heat-conducting bag 40 for cold compress. When the user needs heat therapy, the system receives a heat therapy command, the hot flow valve opens, the high-temperature medium in the hot flow chamber 30 circulates to the heat-conducting bag 40 for heat compress, and the cold flow valve closes. The entire process requires no physical adjustment of equipment or replacement of devices, and the heat from the heating surface is fully utilized, avoiding energy waste.

[0106] Specifically, such as Figure 5 and Figure 6 As shown, in conjunction with the above-described embodiment of the shared supply line 41 and shared return line 42, the steps of confirming the working mode command as a cryotherapy command, activating the hot and cold semiconductor 10, controlling the cold flow valve to open the first cold flow circuit, and controlling the hot flow valve to disconnect the first hot flow circuit include: S210. Confirm the working mode command is the cryotherapy command, activate the cryo-thermal semiconductor 10, control the first control valve 23 to disconnect the first supply line 21, control the second control valve 24 to disconnect the first return line 22, control the third control valve 33 to disconnect the second supply line 31, control the fourth control valve 34 to open the second return line 32, and activate the second fluid actuator 52 to discharge the heat transfer medium in the heat transfer bag 40 to the heat flow box 30. S220: Confirm that the heat-conducting medium in the heat-conducting bag 40 has been discharged, control the first control valve 23 to open the first flow supply line 21, control the second control valve 24 to open the first return line 22, control the fourth control valve 34 to disconnect the second return line 32, and start the first fluid driver 51.

[0107] When the operating mode command is confirmed to be a cryotherapy command, the system activates the thermo-thermal semiconductor 10 and executes a series of precise valve control and fluid drive operations. First, the first control valve 23 disconnects the first supply line 21, the second control valve 24 disconnects the first return line 22, the third control valve 33 disconnects the second supply line 31, and simultaneously the fourth control valve 34 opens the second return line 32 and activates the second fluid actuator 52. The purpose of this series of operations is to drain any residual heat medium in the thermoconducting bag 40 to the heat flow box 30 through the second return line 32, thereby completely emptying the thermoconducting bag 40.

[0108] After confirming that the heat-conducting medium in the heat-conducting bladder 40 has been discharged, the system will further control the first control valve 23 to open the first supply pipe 21, the second control valve 24 to open the first return pipe 22, the fourth control valve 34 to disconnect the second return pipe 32, and start the first fluid driver 51. At this time, the cold flow medium will enter the heat-conducting bladder 40 from the cold flow box 20 through the first supply pipe 21 and the common supply pipe 41, completing the switching and start of the cryotherapy mode.

[0109] Confirming that the heat-conducting medium in the heat-conducting bladder 40 has been discharged can be achieved in several ways, such as by detecting whether the flow rate drops below a preset threshold using a flow sensor installed on the return pipeline, or by detecting pressure changes in the heat-conducting bladder 40 using a pressure sensor, or by setting an empirical emptying time.

[0110] Based on the above embodiments of the shared supply line 41 and shared return line 42, the steps of confirming that the working mode command is a hyperthermia command, activating the hot and cold semiconductor 10, controlling the hot flow valve to open the first hot flow circuit, and controlling the cold flow valve to disconnect the first cold flow circuit include: S310, Confirm the working mode command is the thermotherapy command, activate the hot and cold semiconductor 10, control the first control valve 23 to disconnect the first supply line 21, control the second control valve 24 to open the first return line 22, control the third control valve 33 to disconnect the second supply line 31, control the fourth control valve 34 to disconnect the second return line 32, and activate the second fluid actuator 52 to discharge the heat transfer medium in the heat transfer bag 40 to the cold flow box 20; S320: Confirm that the heat-conducting medium in the heat-conducting bladder 40 has been discharged, control the second control valve 24 to disconnect the first return line 22, control the third control valve 33 to open the second supply line 31, control the fourth control valve 34 to open the second return line 32, and start the first fluid driver 51.

[0111] When the operating mode command is confirmed to be a hyperthermia command, the system will also activate the thermoelectric cooler 10 and perform corresponding valve control and fluid drive. First, the first control valve 23 disconnects the first supply line 21, the second control valve 24 opens the first return line 22, the third control valve 33 disconnects the second supply line 31, the fourth control valve 34 disconnects the second return line 32, and the second fluid actuator 52 is activated. This operation aims to drain any residual cold medium in the thermoconducting bag 40 to the cold flow box 20 through the first return line 22, ensuring the complete emptying of the thermoconducting bag 40.

[0112] After confirming that the heat transfer medium in the heat transfer bag 40 has been discharged, the system will control the second control valve 24 to disconnect the first return line 22, the third control valve 33 to open the second supply line 31, the fourth control valve 34 to open the second return line 32, and start the first fluid driver 51. At this time, the heat transfer medium will enter the heat transfer bag 40 from the heat transfer box 30 through the second supply line 31 and the common supply line 41, completing the switching and start of the hyperthermia mode.

[0113] By introducing a detailed step-by-step emptying and filling process for the heat-conducting bladder 40, the problem of residual media mixing during mode switching is resolved. Specifically, through the coordinated control of the first control valve 23, the second control valve 24, the third control valve 33, and the fourth control valve 34, the supply pipeline is disconnected and a specific return pipeline is opened during the emptying phase. Combined with the second fluid actuator 52 driving the media discharge, cross-contamination of hot and cold media within the heat-conducting bladder 40 is avoided. Subsequently, after confirming that the heat-conducting bladder 40 is empty, the supply pipeline is opened and the first fluid actuator 51 is activated to input the heat-conducting medium. This timing control based on valve status and actuator start / stop ensures thorough media switching and unidirectional flow, thereby improving system reliability.

[0114] The design of sharing the supply line 41 and the return line 42 reduces component redundancy and optimizes fluid drive efficiency by sharing the first fluid actuator 51 and the second fluid actuator 52. During cryotherapy, the combination of disconnecting the first supply line 21 with the first control valve 23, disconnecting the first return line 22 with the second control valve 24, disconnecting the second supply line 31 with the third control valve 33, and opening the second return line 32 with the fourth control valve 34, along with activating the second fluid actuator 52, discharges the medium to the hot flow chamber 30 instead of directly filling it, preventing the cold medium from being affected by residual heat. Similarly, during hyperthermia, the second control valve 24 opens the first return line 22 and activates the second fluid actuator 52 to discharge the medium to the cold flow chamber 20, ensuring a clean environment before filling the hot medium. The step of confirming that the medium in the thermotherapy bag 40 has been discharged, by monitoring the emptying status, further ensures the integrity of the switching process and avoids temperature deviations caused by residue.

[0115] Through the above technical solution, this application effectively solves the problem of mixing of heat-conducting media inside the heat-conducting bladder 40 during switching between hot and cold therapy modes, significantly improving the accuracy of treatment temperature control and system operating efficiency. By employing refined valve control and fluid drive strategies, it ensures that the media inside the heat-conducting bladder 40 is completely emptied before mode switching, avoiding cross-contamination between hot and cold media, thereby guaranteeing the cooling or heating efficiency of the heat-conducting bladder 40.

[0116] This invention also proposes a thermotherapy device, which includes a housing and a thermotherapy system. The specific structure of the thermotherapy system is as described in the above embodiments. Since this thermotherapy device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The thermotherapy semiconductor 10, the cold flow chamber 20, and the hot flow chamber 30 of the thermotherapy system are all installed inside the housing.

[0117] As the external structure of a device, the housing serves to provide physical protection, aesthetic appeal, and ease of portability. The housing can be made from various materials and molding processes. For example, injection-molded engineering plastics (such as ABS and PC alloys) can be used to achieve lightweight, good insulation, and cost-effectiveness; alternatively, metal materials (such as aluminum alloys) can be used through stamping or die-casting processes to provide higher structural strength, better heat dissipation, and a more premium feel; furthermore, composite materials (such as carbon fiber reinforced plastics) can be considered to balance lightweight and high strength.

[0118] The hot and cold semiconductor 10, the cold flow box 20, and the hot flow box 30 are fixed and housed within the internal space of the housing. The installation can be achieved through various technical means. For example, each component can be directly fixed to a pre-set mounting point inside the housing using screws, clips, adhesives, or welding. Alternatively, an internal support structure (such as a metal frame, plastic partition, or an integrally molded bracket) can be designed to position and support these components, and then the support structure can be fixed to the housing as a whole. Or, a modular design can be adopted, in which the hot and cold semiconductor 10, the cold flow box 20, and the hot flow box 30 are pre-assembled into a compact functional module, and then the module is installed into the housing as a whole.

[0119] By integrating core functional components such as the thermal semiconductor 10, cold flow chamber 20, and hot flow chamber 30 into a single housing, the thermotherapy machine achieves a highly integrated and compact design. This significantly reduces the overall size of the device, greatly enhancing its portability and making it convenient for users to use and store in various settings. Simultaneously, the housing provides robust physical protection for the internal precision components, effectively isolating them from dust, moisture, and mechanical impacts from the external environment. This substantially improves the device's safety, reliability, and durability, extending its lifespan.

[0120] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A thermotherapy system, characterized in that, include: A hot-cold semiconductor, wherein the hot-cold semiconductor has a cooling surface and a heating surface; A cold flow chamber, wherein the cold flow chamber is thermally conductively connected to the cooling surface; A heat exchange chamber, wherein the heat exchange chamber is thermally conductively connected to the heating surface; and A heat-conducting bag, used for application to the human body, is provided with heat-conducting channels, wherein: The temperature-conducting channel may be optionally connected to either the cold flow box or the hot flow box; or There are two temperature-conducting bags, one of which is connected to the cold flow box and the other is connected to the hot flow box.

2. The cryotherapy system as described in claim 1, characterized in that, The cold flow box is connected to the heat conduction bag through a first cold flow circuit. The cold and heat therapy system also includes a cold flow valve disposed in the first cold flow circuit, which is used to control the on and off of the first cold flow circuit. And / or, the heat flow box is connected to the temperature conduction bag through a first heat flow circuit, and the heat flow box further includes a heat flow valve disposed in the first heat flow circuit, the heat flow valve being used to control the on / off state of the first heat flow circuit.

3. The cryotherapy system as described in claim 2, characterized in that, The first cold flow circuit includes a first supply pipe and a first return pipe. The first supply pipe connects the cold flow box to the temperature-conducting channel, and the first return pipe connects the cold flow box to the temperature-conducting channel. The cold flow valve includes a first control valve and a second control valve. The first control valve is used to control the opening and closing of the first supply pipe, and the second control valve is used to control the opening and closing of the first return pipe. And / or, the first heat flow circuit includes a second supply line and a second return line, the second supply line connecting the heat flow box to the temperature conduction channel, and the second return line connecting the heat flow box to the temperature conduction channel; the heat flow valve includes a third control valve and a fourth control valve, the third control valve being used to control the on / off state of the second supply line, and the fourth control valve being used to control the on / off state of the second return line.

4. The cryotherapy system as described in claim 2, characterized in that, The first cold flow circuit includes a first supply pipe and a first return pipe. The first supply pipe connects the cold flow chamber to the temperature-conducting channel, and the first return pipe connects the cold flow chamber to the temperature-conducting channel. The cold flow valve includes a first control valve and a first check valve. The first control valve controls the opening and closing of the first supply pipe, and the first check valve is located in the first return pipe. The first check valve connects the first return pipe from the temperature-conducting bladder towards the cold flow chamber. And / or, the first heat flow circuit includes a second supply line and a second return line, the second supply line connecting the heat flow box to the temperature conduction channel, and the second return line connecting the heat flow box to the temperature conduction channel; the heat flow valve includes a third control valve and a second check valve, the third control valve being used to control the on / off state of the second supply line, and the second check valve being located in the second return line, the second check valve connecting the second return line from the temperature conduction bag toward the heat flow box.

5. The cryotherapy system as described in claim 3 or 4, characterized in that, The cryotherapy system further includes a first fluid actuator, which drives the heat-conducting medium in the cold flow chamber to flow along the first cold flow loop; And / or, the thermotherapy system further includes a second fluid actuator for driving the heat-conducting medium within the heat flow chamber to flow along the first heat flow loop.

6. The cryotherapy system as described in claim 3 or 4, characterized in that, The first and second delivery lines are connected to the heat-conducting bag via a common delivery line. The cryotherapy system also includes a first fluid actuator located in the common delivery line. The first fluid actuator is used to drive the heat-conducting medium of the first or second delivery line to flow to the heat-conducting bag. And / or, the first return line and the second return line are connected to the heat-conducting bag through a common return line, and the thermotherapy system further includes a second fluid actuator disposed in the common return line, the second fluid actuator being used to drive the heat-conducting medium of the heat-conducting bag to flow to the first return line or the second return line.

7. The cryotherapy system as described in claim 1, characterized in that, The hot and cold therapy system also includes a heat dissipation unit, wherein part of the heating surface is thermally connected to the heat flow box and part is thermally connected to the heat dissipation unit.

8. The cryotherapy system as described in claim 1, characterized in that, The two heat-conducting bags include a first heat-conducting bag and a second heat-conducting bag. The cold flow chamber is connected to the first heat-conducting bag through a second cold flow circuit. The cryotherapy system also includes a third fluid actuator disposed in the second cold flow circuit, the third fluid actuator being used to drive the heat-conducting medium in the cold flow chamber to flow along the second cold flow circuit; and / or, The heat flow chamber is connected to the second heat conduction bag through the second heat flow circuit. The thermotherapy system also includes a fourth fluid actuator disposed in the second heat flow circuit. The fourth fluid actuator is used to drive the heat conduction medium in the heat flow chamber to flow along the second heat flow circuit.

9. A method for controlling a cryotherapy / thermotherapy system, characterized in that, The cryotherapy system includes a cryo-thermal semiconductor, a cold flow chamber, a hot flow chamber, a temperature-conducting bag, a cold flow valve, and a hot flow valve; the cryo-thermal semiconductor has a cooling surface and a heating surface; the cold flow chamber is thermally connected to the cooling surface; the hot flow chamber is thermally connected to the heating surface; the temperature-conducting bag is used for application to the human body, and the temperature-conducting bag is provided with a temperature-conducting channel, which can be selectively connected to either the cold flow chamber or the hot flow chamber; The cold flow box is connected to the temperature-conducting bag through a first cold flow circuit, and the cold flow valve is used to control the opening and closing of the first cold flow circuit; the hot flow box is connected to the temperature-conducting bag through a first hot flow circuit, and the hot flow valve is used to control the opening and closing of the first hot flow circuit. The control method of the cryotherapy / thermotherapy system includes the following steps: Get working mode instructions; Confirm the working mode command is the cryotherapy command, activate the cold and hot semiconductor, control the cold flow valve to open the first cold flow circuit, and control the hot flow valve to disconnect the first hot flow circuit; The working mode command is confirmed to be a hyperthermia command. The hot and cold semiconductor is activated, the hot flow valve is controlled to open the first hot flow circuit, and the cold flow valve is controlled to close the first cold flow circuit.

10. The control method of the cryotherapy system as described in claim 9, characterized in that, The first cold flow circuit includes a first supply pipe and a first return pipe. The first supply pipe connects the cold flow box to the temperature-conducting channel, and the first return pipe connects the cold flow box to the temperature-conducting channel. The cold flow valve includes a first control valve and a second control valve. The first control valve is used to control the opening and closing of the first supply pipe, and the second control valve is used to control the opening and closing of the first return pipe. The first heat flow circuit includes a second supply line and a second return line. The second supply line connects the heat flow box to the temperature-conducting channel, and the second return line connects the heat flow box to the temperature-conducting channel. The heat flow valve includes a third control valve and a fourth control valve. The third control valve is used to control the on / off state of the second supply line, and the fourth control valve is used to control the on / off state of the second return line. The first and second delivery lines are connected to the heat-conducting bag via a common delivery line. The cryotherapy system also includes a first fluid actuator located in the common delivery line. The first fluid actuator is used to drive the heat-conducting medium of the first or second delivery line to flow to the heat-conducting bag. The first return line and the second return line are connected to the heat-conducting bag through a common return line. The thermotherapy system also includes a second fluid actuator located in the common return line. The second fluid actuator is used to drive the heat-conducting medium of the heat-conducting bag to flow to the first return line or the second return line. The steps of confirming the working mode command as a cryotherapy command, activating the cryo-thermal semiconductor, controlling the cold flow valve to open the first cold flow circuit, and controlling the hot flow valve to disconnect the first hot flow circuit include: The working mode command is confirmed to be the cryotherapy command. The cryo-thermal semiconductor is activated, the first control valve is controlled to disconnect the first supply line, the second control valve is controlled to disconnect the first return line, the third control valve is controlled to disconnect the second supply line, the fourth control valve is controlled to open the second return line, and the second fluid actuator is activated to discharge the heat transfer medium in the heat transfer bag to the heat flow box. Once it is confirmed that the heat transfer medium in the heat transfer bag has been discharged, the first control valve is controlled to open the first supply pipeline, the second control valve is controlled to open the first return pipeline, the fourth control valve is controlled to disconnect the second return pipeline, and the first fluid actuator is started. The steps of confirming the working mode command as a hyperthermia command, activating the hot and cold semiconductor, controlling the hot flow valve to open the first hot flow circuit, and controlling the cold flow valve to disconnect the first cold flow circuit include: The working mode command is confirmed to be a hyperthermia command. The hot and cold semiconductor is activated, the first control valve is controlled to disconnect the first flow line, the second control valve is controlled to open the first return line, the third control valve is controlled to disconnect the second flow line, the fourth control valve is controlled to disconnect the second return line, and the second fluid actuator is activated to discharge the heat transfer medium in the heat transfer bag to the cold flow box. Once it is confirmed that the heat transfer medium in the heat transfer bag has been discharged, the second control valve is controlled to disconnect the first return line, the third control valve is controlled to open the second supply line, the fourth control valve is controlled to open the second return line, and the first fluid actuator is started.

11. A hot and cold therapy machine, characterized in that, The system includes a housing and a thermotherapy system as described in any one of claims 1 to 8, wherein the thermotherapy system’s thermotherapy semiconductor, cold flow chamber and hot flow chamber are all installed within the housing.

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