A cold and hot alternating type exercise rehabilitation device based on size cycle

Abstract

The application provides a cold and hot alternating type movement repair device based on a large and small cycle, comprising a compress and a main body structure, the compress is configured to compress a target part, the main body structure is detachably connected with the compress, the main body structure comprises a main body base, a water tank, a water pump, a solenoid valve and a refrigeration and heating unit arranged on the main body base; the solenoid valve has a first working state and a second working state corresponding to a large cycle and a small cycle respectively; when the solenoid valve is in the first working state, water flows in the compress, the water pump and the refrigeration and heating unit; when the solenoid valve is in the second working state, water flows in the compress, the water pump, the refrigeration and heating unit and the water tank. The device is light and efficient and can quickly realize cold and hot alternation, and can meet the diversified needs in the scenes of movement rehabilitation and postoperative recovery.

Description

[Technical Field]

[0001] This application relates to the field of rehabilitation equipment technology, and in particular to a cold and heat alternating exercise repair device based on large and small circulation. [Background Technology]

[0002] In the fields of sports rehabilitation and postoperative recovery, alternating hot and cold compress therapy has become an important adjunctive treatment method due to its effects of promoting blood circulation, reducing inflammation, and relieving pain. After exercise, alternating hot and cold stimulation can accelerate muscle fatigue recovery; after joint surgeries such as knee surgery, cold compresses can effectively reduce swelling and pain, while subsequent hot compresses help promote tissue repair. Therefore, developing efficient and convenient alternating hot and cold compress equipment is of great significance for improving rehabilitation outcomes and patient experience.

[0003] Currently, existing hot and cold alternation sports rehabilitation devices on the market have many shortcomings. Traditional pool-type devices, while achieving hot and cold alternation, are bulky and require a large area, necessitating users to move between pools of different temperatures, making them inconvenient and lacking flexibility. Compressor-based devices, due to their complex cooling and heating cycles, struggle to achieve rapid hot and cold switching, and generate significant noise during operation, severely limiting their application in indoor environments. External ice-adding devices require pre-made ice and manual addition, which is not only cumbersome but also results in short-lived use due to melting ice, failing to continuously meet the cooling needs and hindering the hot and cold alternation function. Furthermore, these devices also suffer from significant portability deficiencies, failing to meet the requirements for efficient, flexible, and comfortable use in sports rehabilitation and postoperative recovery scenarios.

[0004] Therefore, there is an urgent need to develop a new type of alternating hot and cold motion repair device to overcome the shortcomings of existing technologies. [Utility Model Content]

[0005] This application provides a thermo-cold alternating circulation exercise therapy device based on large and small circulation to solve the problems in the prior art. The thermo-cold alternating circulation exercise therapy device includes a dressing bag and a main structure. The dressing bag is configured to be applied to the target area. The main structure is detachably connected to the dressing bag. The main structure includes a main base and a water tank, a water pump, a solenoid valve, and a cooling / heating unit disposed on the main base. The solenoid valve has a first working state and a second working state corresponding to the large circulation and the small circulation, respectively. When the solenoid valve is in the first working state, water flows through the dressing bag, the water pump, and the cooling / heating unit. When the solenoid valve is in the second working state, water flows through the dressing bag, the water pump, the cooling / heating unit, and the water tank.

[0006] Specifically, the cooling and heating unit includes a shell, a heat exchanger, cooling fins, and a radiator, which are stacked sequentially.

[0007] Specifically, the heat sink includes a heat pipe base, heat dissipation fins, a heat pipe, and a fan: the heat pipe base is located adjacent to the cooling fin, and the inner surface of the heat pipe base is provided with a groove; the heat dissipation fins are located on one side of the heat pipe base; one end of the heat pipe is buried in the groove, and the other end of the heat pipe passes through the heat dissipation fin; the fan is located on one side of the heat dissipation fin.

[0008] Specifically, the internal cavity of the heat pipe is filled with a capillary tube, and the capillary tube is filled with a gas-liquid two-phase heat transfer medium.

[0009] Specifically, the water tank and the main body base are detachably connected. The water tank includes a water tank body and a cover plate, and the opening of the water tank body is sealed with the cover plate.

[0010] Specifically, the water tank body is a cavity with one end open, and the side wall of the water tank body is provided with a first water inlet / outlet interface and a second water inlet / outlet interface, which are columnar protrusions.

[0011] Specifically, the main body base includes a base, a mounting groove, and a water tank fixing plate. The mounting groove and the water tank fixing plate are installed on the base. The water tank fixing plate defines a storage space. The water tank fixing plate includes a first side wall, a second side wall, a top panel, and a back panel. The first side wall, the second side wall, the top panel, and the back panel enclose a rectangular shape with a side opening.

[0012] Specifically, the size of the water tank body is smaller than the size of the water tank fixing plate, and the water tank body and the water tank fixing plate are detachably connected.

[0013] Specifically, the back panel is provided with a first water pipe interface and a second water pipe interface, which are respectively provided for the first water inlet / outlet interface and the second water inlet / outlet interface.

[0014] Specifically, the solenoid valve includes a two-way solenoid valve and a three-way solenoid valve, which are connected by a water circuit.

[0015] The three-way solenoid valve is provided with a three-way first interface, a three-way second interface and a three-way third interface, and the two-way solenoid valve is provided with a two-way first interface and a two-way second interface;

[0016] By switching the two-way solenoid valve and the three-way solenoid valve, the on / off state of the interface is changed, thereby changing the circulation path of the water circuit to form the small circulation and the large circulation.

[0017] Specifically, the waterway includes a first hose, a second hose, a third hose, a fourth hose, a branch hose, a fifth hose, and a sixth hose;

[0018] The cooling and heating unit includes a first cooling and heating unit and a second cooling and heating unit that are connected to each other.

[0019] The outlet of the dressing bag is connected to a branch hose on the fourth hose via the connecting pipe. The second three-way port of the three-way solenoid valve is connected to the first two-way port of the two-way solenoid valve via the fourth hose. The first three-way port of the three-way solenoid valve is connected to the inlet of the water pump via the third hose. The water pump is connected to the inlet of the second cooling and heating unit via the second hose. The second cooling and heating unit and the first cooling and heating unit are connected in series via the first hose. The outlet of the first cooling and heating unit is connected to the inlet of the dressing bag.

[0020] The three-way solenoid valve's third port is connected to the water tank's outlet via the fifth hose, and the two-way solenoid valve's second port is connected to the water tank's inlet via the sixth hose.

[0021] Specifically, when the three-way second port of the three-way solenoid valve is open and the three-way third port is closed; and when the two-way second port of the two-way solenoid valve is closed, water flows between the dressing bag, the water pump, and the cooling / heating unit, forming the small circulation; or / and

[0022] When the three-way second port of the three-way solenoid valve is closed and the three-way third port is open, the two-way second port of the two-way solenoid valve is open and the two-way first port is closed, the water tank enters circulation, and the water flows between the water tank, the dressing bag, the water pump and the cooling and heating unit to form the large circulation.

[0023] Specifically, the dressing includes a connector, a connecting pipe, and a panel. The connecting pipe and the panel are detachably connected or integrally formed. The connecting pipe is connected to the main structure through the connector.

[0024] Specifically, the connector is a shut-off valve assembly, which includes a flange, a first dual-pipeline interface, and a second dual-pipeline interface; the first dual-pipeline interface is installed inside the flange; and the second dual-pipeline interface is plugged into the first dual-pipeline interface.

[0025] Specifically, the alternating hot and cold motion repair device also includes a controller, which is installed on the alternating hot and cold motion repair device. The controller is electrically connected to the cooling and heating unit, the water pump, and the solenoid valve. The controller integrates one or more of the following: a transmission module, an over-temperature and under-temperature protection module, a display screen, operation buttons, a buzzer, and a fault detection and alarm module.

[0026] Specifically, the transmission module is connected to an external terminal device. The transmission module outputs the dressing replacement suggestion based on the user's input of the movement information and automatically adjusts the working status of the hot and cold alternating exercise repair device.

[0027] Compared with the prior art, the alternating hot and cold motion repair device provided in this application has the following advantages:

[0028] I. Significantly Improved Portability: Abandoning the large structure of traditional pool-type devices, the device combines a Peltier effect-based cooling plate with a small water circulation system, making it compact and lightweight. It eliminates the dependence on specific locations, making it extremely convenient for home use, temporary application in sports venues, or carrying when going out, meeting users' needs for alternating hot and cold compress therapy anytime, anywhere.

[0029] II. Rapid heating and cooling alternation and low-noise operation: The switching of the current direction of the cooling element realizes the conversion between hot and cold surfaces, eliminating the need for a complex compressor cycle. It can quickly complete the heating and cooling alternation, greatly shortening the temperature adjustment time. At the same time, there is no mechanical vibration or operating noise from large components such as compressors during operation, significantly reducing operating noise. It can be used normally in quiet indoor environments such as bedrooms and offices, greatly improving the user experience.

[0030] Third, it is convenient to use and has a long duration: Unlike external ice-adding devices, this invention does not require pre-making ice or manually adding ice. It directly cools or heats the water through the cooling plate, making it easy to operate. Moreover, the design of the water tank and water circulation system ensures a sufficient supply of hot and cold media, allowing for stable operation for a long time and continuous provision of alternating hot and cold compresses to meet the long-term use needs in scenarios such as sports rehabilitation and postoperative recovery.

[0031] IV. Precise temperature control and strong adaptability: Utilizing the precise temperature control characteristics of semiconductors, combined with a complete water circulation system, the temperature of the dressing can be precisely controlled. The temperature parameters can be flexibly adjusted according to different usage scenarios and user needs. Whether it is muscle relaxation after exercise or cold or hot compresses after knee surgery, it can provide precise and appropriate temperature, improving treatment effectiveness and safety. [Attached Image Description]

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0033] Figure 1 This is a three-dimensional structural diagram of a hot-cold alternating motion repair device;

[0034] Figure 2 This is a three-dimensional structural diagram of the alternating hot and cold motion repair device from another angle;

[0035] Figure 3 This is a schematic diagram of the three-dimensional structure of the dressing;

[0036] Figure 4 This is a three-dimensional structural diagram of the connector;

[0037] Figure 5 This is a schematic diagram of the three-dimensional structure of the main base;

[0038] Figure 6 This is a three-dimensional structural diagram of the main base from another angle;

[0039] Figure 7 This is a three-dimensional structural diagram of the water tank;

[0040] Figure 8 This is an exploded view of the three-dimensional structure of the water tank;

[0041] Figure 9 This is a three-dimensional structural diagram of the cooling and heating unit;

[0042] Figure 10 This is a three-dimensional exploded view of the cooling and heating unit;

[0043] Figure 11 This is a 3D structural diagram of a hot and cold alternating motion therapy device (the dressing bag is hidden);

[0044] Figure 12 This is a 3D structural diagram of a hot-cold alternating motion repair device (main body base is hidden);

[0045] Figure 13 This is a three-dimensional structural diagram of the alternating hot and cold motion therapy device from another angle (the main base and dressing bag are hidden);

[0046] Figure 14 This is a three-dimensional structural diagram of the waterway connection;

[0047] Figure 15 This is a three-dimensional structural diagram of the waterway connection from another angle;

[0048] Figure 16 This is a diagram illustrating the large and small cycles;

[0049] Figure 17 This is a schematic diagram of the controller's connection relationship;

[0050] Icon labels:

[0051] 100. Alternating hot and cold sports rehabilitation equipment;

[0052] 10. Draping bag; 101. Connector; 1011. Flange; 1012. First double-pipe interface; 1013. Second double-pipe interface; 1014. Flow channel seal; 102. Connecting pipe; 103. Panel;

[0053] 20. Main structure;

[0054] 21. Main body base; 211. Base; 212. Mounting slot; 2121. First mounting slot; 2122. Second mounting slot; 2122A. Bracket; 2123. Third mounting slot; 2124. Fourth mounting slot; 213. Water tank fixing plate; 2131. First side wall; 2132. Second side wall; 2133. Top panel; 2134. First water pipe interface; 2135. Second water pipe interface; 2136. Back panel;

[0055] 22. Water tank; 221. Main body; 2211. First water inlet / outlet interface; 2212. Second water inlet / outlet interface; 2213. First annular groove; 2214. Second annular groove; 222. Cover plate;

[0056] 23. Water pump;

[0057] 24. Two-way solenoid valve; 241. Two-way first port; 242. Two-way second port;

[0058] 25. Three-way solenoid valve; 251. Three-way first port; 252. Three-way second port; 253. Three-way third port;

[0059] 26. Cooling and heating unit; 26A. First cooling and heating unit; 26B. Second cooling and heating unit; 261. Cooling element; 262. Heat exchanger; 263. Housing; 264. Radiator; 2641. Heat dissipation fins; 2642. Heat pipe base; 2643. Heat pipe; 2644. Fan;

[0060] 28. Waterway; 281. First hose; 282. Second hose; 283. Third hose; 284. Fourth hose; 2841. Branch hose; 285. Fifth hose; 286. Sixth hose; 287. Duckbill nozzle.

Detailed Implementation Methods

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0062] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0063] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

[0064] Please refer to Figure 1 and Figure 2 , Figure 1 This is a three-dimensional structural diagram of a hot-cold alternating motion repair device. Figure 2 This is a three-dimensional structural diagram of the alternating hot and cold exercise repair device from another angle. The alternating hot and cold exercise repair device 100 provided in this application includes a dressing bag 10 and a main structure 20. The dressing bag 10 is connected to the main structure 20 through a water channel 28.

[0065] The dressing bag 10 is used to apply the dressing to the target area, so it can be made of a flexible structure, such as rubber, ethylene, nylon composite bags, etc., without limitation, to better cover the human body parts that need cold or hot compresses.

[0066] The shape of the dressing bag 10 can be designed according to specific needs, such as rectangular, circular, or irregular shapes, suitable for applying to larger areas such as the back; or cylindrical, so that it can be wrapped around areas such as the knees; or other irregular shapes to fit areas such as the shoulders, elbows, and ankles, without any restrictions.

[0067] Please refer to Figure 3 , Figure 3This is a three-dimensional structural diagram of the dressing bag. In some embodiments, the dressing bag 10 includes a connector 101, a connecting pipe 102, and a panel 103. The connector 101, the connecting pipe 102, and the panel 103 are connected sequentially. The main structure 20 and the dressing bag 10 are detachably connected. In this embodiment, the main structure 20 is connected to one end of the connector 101, and the other end of the connector 101 is connected to the connecting pipe 102 and extends to the panel 103 through the connecting pipe 102. The connecting pipe 102 and the panel 103 can also be quickly connected by a structure such as a buckle or a thread to facilitate the replacement of the connecting pipe 102 and the panel 103, and to facilitate maintenance and replacement.

[0068] Please refer to Figure 4 , Figure 4 This is a three-dimensional structural diagram of the connector. In some embodiments, the connector 101 is a shut-off valve assembly, consisting of three parts: a flange 1011, a first dual-pipe interface 1012, and a second dual-pipe interface 1013. The flange 1011 is a circular flat plate structure, and it is fitted over the first dual-pipe interface 1012. A flow channel seal 1014 is fitted over the second dual-pipe interface 1013 to improve fluid sealing. The first dual-pipe interface 1012 is directly connected to the second dual-pipe interface 1013 through the flow channel seal 1014. It can be understood that the first dual-pipe interface 1012 and the second dual-pipe interface 1013 are designed for plug-in connection, facilitating both storage and pipe replacement.

[0069] Please refer to the following: Figure 1 , Figure 2 , Figure 5 and Figure 6The main structure 20 includes a main base 21, on which a water tank 22, a water pump 23, a two-way solenoid valve 24, a three-way solenoid valve 25, and a cooling / heating unit 26 are mounted. The main base 21 includes a base 211, mounting slots 212, and a water tank fixing plate 213. The base 211 is an integral rectangular plate structure. Several mounting slots 212 and a water tank fixing plate 213 are provided on the upper part of the base 211. The mounting slots 212 are used to mount the water tank 22, the water pump 23, and the cooling / heating unit 26. Specifically, the mounting slot 212 includes a first mounting slot 2121, a second mounting slot 2122, a third mounting slot 2123, and a fourth mounting slot 2124. These slots are arranged in an array on the base 211. In some embodiments, the first mounting slot 2121 is a generally rectangular plane, and the second mounting slot 2122 has the same shape as the first mounting slot. An air circuit device can be installed in the first mounting slot 2121, and a water pump 23 can be installed in the second mounting slot 2121. The second mounting slot 2122 is provided with a bracket 2122A. One end of the bracket 2122A is used to fix the water pump 23, and the other end is used to fix a two-way solenoid valve 24 and a three-way solenoid valve 25, preventing the water pump 23 from moving due to equipment movement. To prevent displacement or loosening and to avoid the risk of liquid leakage; the cooling and heating unit 26 can be installed on the third mounting slot 2123 and the fourth mounting slot 2124. The water tank fixing plate 213 is spaced apart from the mounting slot 212. The water tank fixing plate 213 is a rectangular shape with a side opening. The water tank fixing plate 213 defines a storage space. The water tank fixing plate 213 includes a first side wall 2131, a second side wall 2132, a top panel 2133, and a back panel 2136. The first side wall 2131, the second side wall 2132, the top panel 2133, and the back panel 2136 enclose a rectangular shape with a side opening. The water tank 22 can be detachably installed in the water tank fixing plate 213, such as by means of buckles, embedding, magnetic attraction, etc., so that the water tank 22 can be pulled out and stored from the side opening. A first water pipe interface 2134 and a second water pipe interface 2135 are provided at the back plate 2136, allowing the fifth hose 285 and the sixth hose 286 to detachably pass through the first water pipe interface 2134 and the second water pipe interface 2135 and enter the interior of the water tank. The functional components are systematically distributed to different positions on the main body base 21, avoiding spatial overlap or interference between components, making the entire main structure 20 more compact (basically cuboid), reducing the volume occupied by the equipment. The cuboid shape occupies less volume, making it easy to handle and transport.

[0070] It should be noted that the mounting slot 212 on the base 211 can be expanded according to the actual situation to accommodate different devices. In some embodiments, a new cooling and heating unit 26 or a water tank 22 can be installed by adding a corresponding mounting slot 212.

[0071] In some embodiments, the positions of the water tank 22, water pump 23, and cooling / heating unit 26 can be interchanged to form a basic cuboid shape, and corresponding two-way solenoid valves 24, three-way solenoid valves 25, and water circuits 28 are set according to their respective positions, as long as the cooling and heating functions can be realized, their specific positions are not specifically limited.

[0072] In some embodiments, the water tank 22 and the water pump 23 are respectively located near the corners of the dressing bag 10, shortening the liquid transmission path (such as pipe length) between them and the dressing bag 10. This reduces liquid flow resistance, energy loss, and improves the efficiency of the water pump 23 in driving liquid circulation. Furthermore, the components are symmetrically or diagonally distributed on the main body base 21, resulting in a more balanced center of gravity distribution and reducing the risk of tipping due to component misalignment during movement or use. Simultaneously, the compact layout reduces the probability of internal wiring and pipes crossing or tangling, further improving the reliability of equipment operation.

[0073] Please refer to the following: Figure 7 , Figure 8 , Figure 14 and Figure 15 The water tank 22 is a cuboid structure with one open end. The water tank 22 includes a water tank body 221 and a cover plate 222. The opening of the water tank body 221 is sealed with the cover plate 222. The cover plate 222 can be connected to the water tank body 221 by means of hinges or buckles, etc. The specific connection method is not limited here. The shape of the cover plate 222 is adapted to the shape of the water tank body 221 to seal the water tank body 221. The interior of the water tank body 221 has a cavity that can hold liquid. A first water inlet / outlet interface 2211 and a second water inlet / outlet interface 2212 are provided on the side wall of the water tank body 221. The first water inlet / outlet interface 2211 and the second water inlet / outlet interface 2212 are respectively set to the first water pipe interface 2134 and the second water pipe interface 2135 of the water tank fixing plate 213.

[0074] Specifically, in some embodiments, the first water pipe interface 2134 and the second water pipe interface 2135 are annular notches; one end of the first water inlet / outlet interface 2211 is a first annular groove 2213, and the other end of the first water inlet / outlet interface 2211 is a columnar protrusion; one end of the second water inlet / outlet interface 2212 is a second annular groove 2214, and the other end of the second water inlet / outlet interface 2212 is a columnar protrusion, which is a hollow groove to facilitate the connection of the fifth hose 285 and the sixth hose 28. 6. The first water pipe interface 2134 and the second water pipe interface 2135 (annular notch) of the water tank fixing plate 213 are respectively inserted into the first water inlet / outlet interface 2211 and the second water inlet / outlet interface 2212 (inside the columnar protrusion). The inner diameter of the fifth hose 285 and the sixth hose 286 is slightly smaller than that of the first water pipe interface 2134, the second water pipe interface 2135 and the first water inlet / outlet interface 2211 and the second water inlet / outlet interface 2212 of the water tank body 221 to ensure a stable fit after insertion.

[0075] Both the first annular groove 2213 and the second annular groove 2214 have integrated duckbill openings 287. One end of the duckbill opening 287 is an open interface, and the other end is in a naturally contracting closed state, allowing only the hose to pass through and form a sealing fit. Its core function is to achieve dynamic sealing of the water passage through elastic contraction.

[0076] In use, the fifth hose 285 should be inserted into the corresponding connection between the first water pipe interface 2134 and the first inlet / outlet interface 2211, and the sixth hose 286 should be inserted into the corresponding connection between the second water pipe interface 2135 and the second inlet / outlet interface 2212. Both hoses must pass through the central channel of the duckbill opening 287. At this time, the duckbill opening is in the open state due to the expansion effect of the hoses, forming a connecting path for the water passage 28.

[0077] When the water tank 22 is to be stopped and replaced, pull the water tank 22 out along the water tank fixing plate 213, and simultaneously pull the fifth hose 285 and the sixth hose 286 out of the duckbill opening 287. At this time, the constricted end of the duckbill opening 287 returns to the closed state due to its own elasticity, and achieves automatic sealing of the water passage 28 through tight fit, effectively preventing residual water from overflowing.

[0078] Please refer to the following: Figure 9 and Figure 10 The cooling and heating unit 26 includes a cooling chip 261, a heat exchanger 262, a housing 263, and a radiator 264, which are connected in sequence.

[0079] The cooling element 261 is a semiconductor device based on the Peltier effect. When energized, a temperature difference is generated between its two sides, achieving the effect of "cooling on one side and heating on the other". The hot and cold sides can be reversed by changing the direction of the current. When energized in the forward direction, the side closer to the heat exchanger 262 is the cooling side, and the side closer to the radiator 264 is the heating side; when energized in the reverse direction, the side closer to the heat exchanger 262 switches to the heating side, and the side closer to the radiator 264 switches to the cooling side.

[0080] The heat sink 264 includes heat dissipation fins 2641, a heat pipe base 2642, a heat pipe 2643, and a fan 2644. The heat pipe base 2642 is a rectangular plane with a groove 2642A on its inner surface. One end of the heat pipe 2643 is embedded in the groove 2642A, and the other end of the heat pipe 2643 is connected to the heat fins 2641 and passes through the interior of the heat fins 2641. A corresponding fan 2644 is provided on one side of the heat fins 2641. The internal cavity of the heat pipe 2643 is filled with capillary tubes and contains a gas-liquid two-phase heat transfer medium. Heat is transferred rapidly through phase change, and its thermal conductivity is much higher than that of metal, resulting in better cooling and heating.

[0081] In cooling mode, the cold side of the cooling chip 261 absorbs heat from the water through the heat exchanger 262, cooling the water. The heat generated by the hot side is transferred to the heat sink fins 2641 through the heat pipe 2643, and then forced by the fan 2644 for air cooling, preventing the cooling chip 261 from overheating. In heating mode, the current is reversed, and the hot side of the cooling chip 261 releases heat to the water through the heat exchanger 262, heating the water. The cold air generated by the cold side is discharged through the radiator 264. Cooling / heating functions can be achieved simply by switching the current direction, without the need for additional hardware modifications, making operation simple and convenient.

[0082] In some embodiments, the number of cooling and heating units 26 can be set as needed. In this embodiment, the cooling and heating unit 26 includes a first cooling and heating unit 26A and a second cooling and heating unit 26B. These two cooling and heating units 26 are connected in series through a water channel 28 to improve the cooling or heating power.

[0083] In some embodiments, the number of cooling chips 261 can be set as needed; in this embodiment, the preferred number is two.

[0084] In some embodiments, a housing is fitted over the main structure 20, the shape of which is adapted to the shape of the main structure 20 to protect the main structure 20. A controller is mounted on the upper surface of the housing, the controller being used to control the operating status of the device.

[0085] Please refer to the following: Figure 11 , Figure 12 , Figure 13 and Figure 14 and Figure 15The diagram shows the circulation pipeline of this device. The outlet of the dressing bag 10 is connected to a branch hose 2841 on the fourth hose 284 via the connecting pipe 102. The second three-way port 252 of the three-way solenoid valve 25 is connected to the first two-way port 241 of the two-way solenoid valve 24 via the fourth hose 284. The first three-way port 251 of the three-way solenoid valve 25 is connected to the inlet of the water pump 23 via the third hose 283. The water pump 23 is connected to the inlet of the second cooling and heating unit 26B via the second hose 282. The second cooling and heating unit 26B and the first cooling and heating unit 26A are connected in series via the first hose 281. The outlet of the first cooling and heating unit 26A is connected to the inlet of the dressing bag 10. The three-way solenoid valve 25's third port 253 is connected to the fifth hose 285 of the outlet of the first inlet / outlet port 2211 of the water tank 22, and the two-way solenoid valve 24's second port 242 is connected to the sixth hose 286 of the inlet of the second inlet / outlet port 2212 of the water tank 22. This water circuit connection method supports switching between multiple circulation modes, improving the flexibility of use.

[0086] In some embodiments, the solenoid valves include a three-way solenoid valve 25 and a two-way solenoid valve 24. By controlling the three-way solenoid valve 25 and the two-way solenoid valve 24, two types of circulation pipelines can be formed:

[0087] When the three-way solenoid valve 25's second three-way port 252 is open and the third three-way port 253 is closed, and the two-way solenoid valve 24's second two-way port 242 is closed, the water flow only flows between the bag 10, the water pump 23, and the cooling and heating unit 26, forming a small circulation.

[0088] When the three-way solenoid valve 25's second port 252 is closed and its third port 253 is open, and the two-way solenoid valve 24's second port 242 is open and its first port 241 is closed, circulation begins in the water tank 22. Water flows between the water tank 22, the bag 10, the water pump 23, and the cooling / heating unit 26, forming a large circulation. Figure 16 As shown.

[0089] When only cold or hot compresses are needed, a small circulation system is sufficient. Because the small circulation system uses less water, the cooling or heating unit 26 is more effective at cooling or heating the water, and consumes less energy.

[0090] When a hot and cold alternation mode is required, if a small circulation is still used, the cooling and heating unit 26 needs to heat the low-temperature cold water to a high-temperature state or cool the high-temperature hot water to a low-temperature state, which takes a long time and makes it difficult to achieve rapid switching, resulting in a poor user experience.

[0091] At this point, the large circulation can be started in advance, using water tank 22 as a cold medium tank to accelerate the cooling time.

[0092] The specific process is as follows:

[0093] In cold compress mode, when the water temperature in the small circulation loop is within the cold compress mode, the device first cools the water in the compress bag through a closed loop (combination loop: compress bag → water pump → cooling / heating unit → compress bag). When the water temperature in the small circulation loop drops to a preset low temperature (e.g., 10℃, meeting the cold compress requirements), the system briefly and repeatedly opens the two-way solenoid valve 24 and the three-way solenoid valve 25 to gradually replace the room temperature water in the water tank 22 with the low temperature water in the small circulation loop. Since the water in the small circulation loop has been sufficiently cooled by the cooling / heating unit, the water temperature in the water tank will gradually decrease after replacement (e.g., from 25℃ → 15℃ → 10℃), eventually making the water tank a "cold medium tank," storing a large amount of low temperature water to prepare for the alternating hot and cold compress mode.

[0094] When the alternating hot and cold mode is required, the water tank 22 is already at a low temperature. The cooling and heating unit 26 uses a semiconductor thermoelectric element: when energized in the forward direction, one side is the cold side (absorbing heat for cooling) and the other side is the hot side (releasing heat, which needs to be discharged by the heat dissipation unit 27); when energized in the reverse direction, the cold and hot sides are exchanged, the original cold side becomes the hot side (releasing heat for heating), and the original hot side becomes the cold side (absorbing heat, which needs to be discharged by the heat dissipation component). When it is necessary to switch to the hot compress mode, the system uses a reverse input current to make the cold side of the cooling and heating unit 26 become the hot side, directly heating the water in the small circulation, causing the water in the compress bag 10, i.e., the small circulation system, to heat up (e.g., from 10℃ to 40℃).

[0095] When the hot compress mode ends and it needs to switch back to the cold compress mode, the traditional solution requires the cooling / heating unit 26 to recool the hot water in the small circulation loop (e.g., from 40℃ to 10℃), which takes a long time (possibly 3-5 minutes). In this solution, the water in the water tank 22 has already been pre-cooled to a low temperature (e.g., 10℃) through prior displacement. At this point, the system uses the three-way solenoid valve 25 to open the "water pump → water tank" path, quickly injecting the low-temperature water from the water tank into the small circulation loop while simultaneously discharging the hot water (e.g., 40℃) from the small circulation loop. Because the low-temperature water directly participates in the cooling of the compress bag, the cooling / heating unit only needs to replenish the cooling of a small amount of residual hot water, significantly shortening the cooling time (to only 1 minute). This solves the technical problem of "excessively long cooling time" and overcomes the difficulty of long cooling times. By repeating the above process, a hot and cold alternation mode can be achieved.

[0096] Please see Figure 17 To achieve the above process, automated control can be achieved through the cooperation of temperature sensors, controllers, and solenoid valves. For example, a first temperature sensor can be installed inside the dressing bag 10, and a second temperature sensor can be installed inside the water tank 22. The controller is connected to the first temperature sensor, the second temperature sensor, the cooling and heating unit, and the solenoid valve.

[0097] The controller can integrate an over-temperature and under-temperature protection module, a display screen (such as LCD / LED), operation buttons (or touch panel), a buzzer, a fault detection alarm module, a storage and memory module, and a communication module for user input and information output. The controller integrates temperature threshold judgment logic, which monitors the surface temperature of the dressing bag in real time through a first temperature sensor (inside the dressing bag). When the detected temperature exceeds the upper safety limit (e.g., >50℃ for hot compresses) or falls below the lower safety limit (e.g., <0℃ for cold compresses), a protection mechanism is immediately triggered: the cooling and heating unit 24 is forcibly shut down, the solenoid valve is cut off, and the system switches to small-circulation idling (only the water pump runs) to prevent the user from being burned or frostbitten. Users can input personalized repair solutions by pressing buttons, such as target temperature (e.g., 40℃ for hot compress, 10℃ for cold compress), duration of hot and cold alternation (e.g., 1 minute cold → 2 minutes hot), and number of cycles (e.g., 3 cycles). The display screen shows the current mode (cold compress / hot compress / pre-cooling), compress temperature, water tank temperature, remaining running time, and other information in real time. The buzzer sounds when the mode is switched (e.g., "pre-cooling complete") or when there is a malfunction (e.g., "temperature abnormal").

[0098] The controller triggers a fault alarm by monitoring the following abnormal signals: If the first / second temperature sensor does not update data or its value jumps for 5 consecutive seconds (e.g., from 10℃ to 100℃), it is determined to be a sensor fault; after the solenoid valve switches, if no change in water temperature in the tank is detected within a preset time (e.g., 2 seconds) (e.g., the second temperature sensor does not show a downward trend during pre-cooling), it is determined to be a solenoid valve blockage or a circuit fault; when the water pump is running, if the pipeline pressure sensor (optional extension) detects that the flow rate is lower than the threshold (e.g., <100mL / min), it is determined to be a water pump running dry or a pipeline blockage.

[0099] The controller has built-in memory to store user-defined programs. Parameters such as temperature, duration, and number of cycles set by the user can be saved as "personal mode" and recalled with a single click the next time. The controller can also have a built-in Wi-Fi / Bluetooth module to connect to a mobile app or smart device (such as a fitness tracker).

[0100] During precooling, when the first temperature sensor detects that the water temperature in the small circulation loop meets a preset first threshold (e.g., 15°C), the controller controls the solenoid valve to switch to the large circulation loop for a first duration (e.g., 10 seconds). Then, the controller controls the solenoid valve to switch back to the small circulation loop. The above steps are repeated until the second temperature sensor detects that the water temperature in the tank reaches a second threshold (e.g., 20°C), at which point the controller activates the alternating hot and cold mode.

[0101] During alternating hot and cold compresses, the main circulation system activates during brief cold compresses, simultaneously cooling and heating the water in the compress bag to quickly lower its temperature. During brief hot compresses, the small circulation system activates, simultaneously heating and heating the water.

[0102] In a possible embodiment, the water tank 22 may be made of insulating material to keep the temperature inside the water tank 22 essentially constant and reduce the heat exchange between the water inside the water tank 22 and the outside.

[0103] In a possible embodiment, the number of water tanks 22 can be set to two: one water tank 22 specifically for storing warm water (warm water tank), and the other water tank 22 for storing cold water (cold water tank). The specific water circuits 28 are set according to the number of water tanks 22. A branch pipe is added to the third three-way interface 253 of the original three-way solenoid valve 25, connecting to the lower inlet of the warm water tank and the lower inlet of the cold water tank respectively; a branch pipe is also added to the second two-way interface 242 of the two-way solenoid valve 24, connecting to the upper outlet of the warm water tank and the upper outlet of the cold water tank respectively. The addition of two dual-path independent solenoid valves enables independent on / off control of the warm water tank and the cold water tank, ensuring that only the target water tank participates in the circulation during the large circulation process.

[0104] As a further optimization, the water pump 23 can be mounted on the main body base via a rubber sleeve to reduce vibration and noise.

[0105] In addition, condensate is inevitably generated during the cooling process of this device. Therefore, in a possible embodiment, the main structure 20 also includes a condensate tank and a condensate collection surface, which are located at the lower end of the main base 21. The condensate collection surface is located below the water tank 22, the water pump 23 and the solenoid valve. The condensate tank is located below the condensate collection surface. There is a hole in the recess of the condensate collection surface that connects to the condensate tank. The collected condensate will automatically flow into the condensate tank.

[0106] In addition to hot compress mode, cold compress mode, and alternating hot and cold mode, this device may also include a manual water change mode to replenish the water in the compress bag or remove air bubbles from the compress bag.

[0107] It should be noted that the medium used in this application can be water or other media, such as adding other substances to water.

[0108] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A thermo-thermal alternating motion repair device based on large and small circulation, characterized in that, include: A dressing, the dressing being configured to be applied to a target area; The main structure is detachably connected to the dressing bag. The main structure includes a main base and a water tank, a water pump, a solenoid valve, and a cooling and heating unit disposed on the main base. The solenoid valve has a first working state and a second working state corresponding to the large circulation and the small circulation, respectively. When the solenoid valve is in the first working state, water flows through the dressing bag, the water pump, and the cooling and heating unit. When the solenoid valve is in the second working state, water flows through the dressing bag, the water pump, the cooling and heating unit, and the water tank.

2. The alternating hot and cold motion repair device based on large and small circulation as described in claim 1, characterized in that, The cooling and heating unit includes a shell, a heat exchanger, cooling plates, and a radiator, which are stacked sequentially.

3. The alternating hot and cold motion repair device based on large and small circulation as described in claim 2, characterized in that, The heat sink includes: A heat pipe base is disposed adjacent to the cooling chip, and the inner surface of the heat pipe base is provided with grooves; Heat dissipation fins, wherein the heat dissipation fins are disposed on one side of the heat pipe base; A heat pipe, one end of which is embedded in a trench, and the other end of which passes through the heat dissipation fins; and A fan is located on one side of the heat sink fins; The heat pipe has an internal cavity filled with a capillary tube, and the capillary tube is filled with a gas-liquid two-phase heat transfer medium.

4. The alternating hot and cold motion repair device based on large and small circulation as described in claim 1, characterized in that, The water tank is detachably connected to the main body base. The water tank includes a water tank body and a cover plate, and the cover plate is sealed at the opening of the water tank body.

5. The alternating hot and cold motion repair device based on large and small circulation as described in claim 4, characterized in that, The main body of the water tank is a cavity with one end open. The side wall of the main body of the water tank is provided with a first water inlet and outlet interface and a second water inlet and outlet interface, which are columnar protrusions.

6. The alternating hot and cold motion repair device based on large and small circulation as described in claim 5, characterized in that, The main base includes a base, a mounting groove, and a water tank fixing plate. The mounting groove and the water tank fixing plate are installed on the base. The water tank fixing plate defines a storage space. The water tank fixing plate includes a first side wall, a second side wall, a top panel, and a back panel. The first side wall, the second side wall, the top panel, and the back panel enclose a rectangular shape with a side opening. The back panel is provided with a first water pipe interface and a second water pipe interface, which are respectively provided for the first water inlet / outlet interface and the second water inlet / outlet interface.

7. The alternating hot and cold motion repair device based on large and small circulation as described in claim 1, characterized in that: The solenoid valve includes a two-way solenoid valve and a three-way solenoid valve, which are connected by a water circuit. The three-way solenoid valve is provided with a three-way first interface, a three-way second interface and a three-way third interface, and the two-way solenoid valve is provided with a two-way first interface and a two-way second interface; By switching the two-way solenoid valve and the three-way solenoid valve, the on / off state of the interface is changed, thereby changing the circulation path of the water circuit to form the small circulation and the large circulation.

8. The alternating hot and cold motion repair device based on large and small circulation as described in claim 7, characterized in that: The waterway includes a first hose, a second hose, a third hose, a fourth hose, a branch hose, a fifth hose, and a sixth hose; The cooling and heating unit includes a first cooling and heating unit and a second cooling and heating unit that are connected to each other. The outlet of the dressing bag is connected to a branch hose on the fourth hose via a connecting pipe. The second three-way port of the three-way solenoid valve is connected to the first two-way port of the two-way solenoid valve via the fourth hose. The first three-way port of the three-way solenoid valve is connected to the inlet of the water pump via the third hose. The water pump is connected to the inlet of the second cooling and heating unit via the second hose. The second cooling and heating unit and the first cooling and heating unit are connected in series via the first hose. The outlet of the first cooling and heating unit is connected to the inlet of the dressing bag. The three-way solenoid valve's third port is connected to the water tank's outlet via the fifth hose, and the two-way solenoid valve's second port is connected to the water tank's inlet via the sixth hose.

9. The alternating hot and cold motion repair device based on large and small circulation as described in claim 8, characterized in that: When the three-way second port of the three-way solenoid valve is open and the three-way third port is closed; when the two-way second port of the two-way solenoid valve is closed, water flows between the dressing bag, the water pump, and the cooling / heating unit, forming the small circulation; or / and When the three-way second port of the three-way solenoid valve is closed and the three-way third port is open, the two-way second port of the two-way solenoid valve is open and the two-way first port is closed, the water tank enters circulation, and the water flows between the water tank, the dressing bag, the water pump and the cooling and heating unit to form the large circulation.

10. The alternating hot and cold motion repair device based on large and small circulation as described in claim 1, characterized in that, The dressing bag includes a connector, a connecting pipe, and a panel. The connecting pipe and the panel are detachably connected or integrally formed. The connecting pipe is connected to the main structure through the connector. The connector is a shut-off valve assembly, and the connector includes: Flange; The first dual-pipeline interface is installed inside the flange; The second dual-pipe interface is pluggable to the first dual-pipe interface.

11. The alternating hot and cold motion repair device based on large and small circulation as described in claim 1, characterized in that, The alternating hot and cold motion repair device also includes a controller, which is installed on the alternating hot and cold motion repair device. The controller is electrically connected to the cooling and heating unit, the water pump, and the solenoid valve. The controller integrates one or more of the following: a transmission module, an over-temperature and under-temperature protection module, a display screen, operation buttons, a buzzer, and a fault detection and alarm module. The transmission module is connected to an external terminal device. The transmission module outputs the dressing replacement suggestion based on the user's input of the movement information and automatically adjusts the working status of the hot and cold alternating exercise repair device.

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