Portable high-efficiency cold and hot rapid alternate treatment system and method thereof

Through the miniaturized design of thermoelectric heat pump and thermoelectric effect, combined with high temperature and low temperature circulation modules and flexible patches, the existing hot and cold physiotherapy instruments are solved, and the efficient and personalized application of portable hot and cold rapid alternating treatment is realized.

CN120436873APending Publication Date: 2025-08-08OCEAN UNIV OF CHINA
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Patent Information

Application Number
CN202510626235.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2025-08-08

AI Technical Summary

Technical Problem

The existing hot and cold physiotherapy instruments are large in size and have high energy consumption, making it difficult to meet the needs of portable and home rehabilitation.

Method used

Thermal and electric heat pump and thermoelectric effect are used for heat transmission, combined with high-temperature and low-temperature circulation modules, hot and cold switching modules and flexible patching devices to achieve miniaturization and high-efficiency energy consumption of hot and cold and hot quickly alternating treatment.

Benefits of technology

It realizes the miniaturization and high efficiency of the portable hot and cold treatment system, is suitable for home rehabilitation, and has precise temperature control and personalized applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a portable high-efficiency rapid cold and hot alternating treatment system and a method thereof. The portable high-efficiency rapid cold and hot alternating treatment system comprises a thermoelectric heat pump (1), a high-temperature circulation module (2), a low-temperature circulation module (3), a cold and hot switching module (4), a cold and hot flexible application device (5) and a driving control module (6). According to the treatment system and method, the single small-size thermoelectric heat pump obtains high-temperature liquid and low-temperature liquid at the same time, and cold and hot switching is rapidly achieved through the switching module. Therefore, the cold and hot rapid alternate treatment system which is small in size, portable and high in energy utilization efficiency is realized.
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Description

Technical Field

[0001] The patent of this invention specifically relates to a portable, high-efficiency, rapid alternating hot and cold treatment system and method thereof, in particular to a physical therapy device with temperature stimulation, and belongs to the field of medical device technology. Background Art

[0002] Alternating hot and cold therapy is a physical therapy that regulates physiological functions by alternating different temperature stimuli. Temperature changes induce vasoconstriction and dilation, creating a "vascular gymnastics" effect that helps promote blood circulation, eliminate metabolic waste, and regulate local inflammatory responses. For arthritis patients, this therapy can reduce inflammatory factors and improve joint mobility. Furthermore, alternating hot and cold in scalp care can help dilate blood vessels and increase oxygen supply, thereby relieving tension and potentially stimulating hair growth.

[0003] Current hot and cold therapy devices primarily rely on compressors for cooling and a water circulation system for temperature regulation. However, this solution suffers from high energy consumption and bulk, requiring significant storage and operating space. This restricts its use to fixed locations like hospitals and clinics, making it difficult to meet the needs of portable or at-home rehabilitation, thus hindering its widespread adoption. Summary of the Invention

[0004] The purpose of this patent is to address the shortcomings of the existing technology and provide a portable, high-efficiency, rapid alternating hot and cold treatment system and method, which has the advantages of small size, high energy efficiency, fast response, precise temperature control, and is suitable for mobile and personalized applications.

[0005] In order to solve the technical problem, the technical solution adopted by the present invention is:

[0006] A portable high-efficiency rapid alternating hot and cold treatment system includes a thermoelectric heat pump 1, a high-temperature circulation module 2, a low-temperature circulation module 3, a hot and cold switching module 4, a hot and cold flexible application device 5 and a drive control module 6. The hot end of the thermoelectric heat pump 1 is connected to the high-temperature circulation module 2, the high-temperature circulation module 2 is respectively connected to the low-temperature circulation module 3 and the hot and cold switching module 4, the other end of the hot and cold switching module 4 is connected to the hot and cold flexible application device 5, and the drive control module 6 is respectively connected to the thermoelectric heat pump 1, the high-temperature circulation module 2, the low-temperature circulation module 3, and the hot and cold switching module 4.

[0007] In the portable high-efficiency rapid alternating hot and cold treatment system, the thermoelectric heat pump 1 is a device that can utilize the thermoelectric effect and the Peltier effect to transfer heat.

[0008] The high-temperature circulation module 2 includes a heat absorption block 21, a hot-end internal and external switching three-way joint 22, a hot-end circulation pump 23, a hot-end liquid storage container 24, a hot-end temperature sensor 25, a hot-end electrically controlled two-position three-way valve 26, a hot-end fan fin radiator 27, a hot-end direct-connected one-way valve 28, a hot-end heat dissipation connection one-way valve 29 and a hot-end internal switching three-way joint 210.

[0009] The hot end internal and external switching three-way joint 22, the hot end circulation pump 23, the hot end liquid storage container 24, the hot end temperature sensor 25, the hot end electrically controlled two-position three-way valve 26, the hot end fan fin radiator 27, the hot end direct-connected one-way valve 28, the hot end heat dissipation connection one-way valve 29 and the hot end internal switching three-way joint 210 and the heat absorption block 21 are connected in sequence.

[0010] The low-temperature circulation module 3 includes a cold absorption block 31, a cold end internal and external switching three-way joint 32, a cold end circulation pump 33, a cold end liquid storage container 34, a cold end temperature sensor 35, a cold end electrically controlled two-position three-way valve 36, a cold end fan fin radiator 37, a cold end direct-connected one-way valve 38, a cold end heat dissipation connection one-way valve 39 and a cold end internal switching three-way joint 310.

[0011] The cold end internal and external switching three-way joint 32, the cold end circulation pump 33, the cold end liquid storage container 34, the cold end temperature sensor 35, the cold end electrically controlled two-position three-way valve 36, the cold end fan fin radiator 37, the cold end direct-connected one-way valve 38, the cold end heat dissipation connection one-way valve 39 and the cold end internal switching three-way joint 310 and the cold end absorption block 31 are connected in sequence.

[0012] The hot-cold switching module 4 includes a hot-end switching electrically controlled three-way valve 41 , a cold-end switching electrically controlled three-way valve 42 , a hot-end one-way valve 43 , a cold-end one-way valve 44 , a hot-cold switching three-way joint 45 and a return electrically controlled three-way valve 46 .

[0013] The hot-end switching electrically controlled three-way valve 41 is connected to the hot-end one-way valve 43 , the cold-end switching electrically controlled three-way valve 42 is connected to the cold-end one-way valve 44 , and both the hot-end one-way valve 43 and the cold-end one-way valve 44 are connected to the hot-cold switching three-way joint 45 .

[0014] The hot and cold flexible application device 5 has an ergonomic and flexible application.

[0015] The drive control module 6 is respectively connected to the drive control outputs of the thermoelectric heat pump 1, the hot end circulation pump 23, the hot end electrically controlled two-position three-way valve 26, the hot end fan fin radiator 27, the cold end circulation pump 33, the cold end electrically controlled two-position three-way valve 36, the cold end fan fin radiator 37, the hot end switching electrically controlled three-way valve 41, the cold end switching electrically controlled three-way valve 42 and the reflux electrically controlled three-way valve 46; the drive control module 6 is respectively connected to the inputs of the hot end temperature sensor 25 and the cold end temperature sensor 35.

[0016] A portable high-efficiency rapid heating and cooling alternation method comprises the following steps:

[0017] ① Start-up preheating and precooling stage: the drive control module 6 starts the thermoelectric heat pump 1, and controls the hot end electric control two-position three-way valve 26, the cold end electric control two-position three-way valve 36, the hot end switching electric control three-way valve 41 and the cold end switching electric control three-way valve 42. The hot end is connected in sequence to the heat absorption block 21, the hot end switching electric control three-way valve 41, the hot end internal and external switching three-way connector 22, the hot end circulation pump 23, the hot end liquid storage container 24, the hot end electric control two-position three-way valve 26, the hot end direct connection The one-way valve 28 and the hot-end internal switching three-way joint 210 are connected to the hot-end circulation to heat the liquid temperature to the set temperature; the cold-end realizes the cold-end circulation that is connected in sequence to the cold-absorbing block 31, the cold-end switching electric-controlled three-way valve 41, the cold-end internal and external switching three-way joint 32, the cold-end circulation pump 33, the cold-end liquid storage container 34, the cold-end electric-controlled two-position three-way valve 36, the cold-end direct-connected one-way valve 38 and the cold-end internal switching three-way joint 310 to cool the liquid temperature to the set temperature.

[0018] ② High-temperature heat output stage of heat cycle: Based on ①, the drive control module 6 controls the hot-end switching electric-controlled three-way valve 41 and the return electric-controlled three-way valve 46, and adds a circulation through the hot-end switching electric-controlled three-way valve 41, the hot-end one-way valve 43, the hot-cold switching three-way connector 45 and the return electric-controlled three-way valve 46 to the hot-end circulation to achieve high-temperature output;

[0019] Control the cold end electric controlled two-position three-way valve 36 and add a cold end fan fin radiator 37 to the cold end circulation to ensure that the cold end temperature remains constant.

[0020] ③ Cold cycle heat output low temperature stage: Based on ①, the drive control module 6 controls the cold end switching electric control three-way valve 42 and the return electric control three-way valve 46, and adds a circulation through the cold end switching electric control three-way valve 42, the cold end one-way valve 44, the hot and cold switching three-way connector 45 and the return electric control three-way valve 46 to the cold end cycle to achieve low temperature output;

[0021] Control the hot end electric two-position three-way valve 26 and add a hot end fan fin radiator 27 to the hot end circulation to ensure that the hot end temperature remains constant.

[0022] Control the time of ② and ③ and repeat steps ② and ③ to achieve personalized alternating hot and cold treatment.

[0023] Beneficial effects of the present invention:

[0024] ① This rapid alternating hot and cold therapy system utilizes a thermoelectric heat pump (semiconductor technology), significantly reducing device size and making it suitable for portable and home rehabilitation settings. Its flexible application design ensures precise fit for different areas, enhancing the comfort and adaptability of hot and cold therapy.

[0025] ②The system uses a monolithic thermoelectric heat pump, which simultaneously applies its cold and heat energy to the cooling and heating of the circulating liquid, achieving efficient energy recovery, optimizing energy consumption performance, and having outstanding energy-saving advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 A schematic diagram of the composition of a portable high-efficiency rapid alternating hot and cold therapy system provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the operating principle of the preheating and precooling stages of the portable high-efficiency rapid alternating heating and cooling method provided by an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the operating principle of the heat output phase of the portable high-efficiency rapid heating and cooling alternation method provided by an embodiment of the present invention;

[0030] Figure 4 Schematic diagram of the operating principle of the cold output stage of the portable high-efficiency rapid hot and cold alternation method provided by an embodiment of the present invention

[0031] In the above figures:

[0032] Thermoelectric heat pump 1, heat absorption block 21, hot end internal and external switching three-way joint 22, hot end circulation pump 23, hot end liquid storage container 24, hot end temperature sensor 25, hot end electric control two-position three-way valve 26, hot end fan fin radiator 27, hot end direct connection one-way valve 28, hot end heat dissipation connection one-way valve 29, hot end internal switching three-way joint 210, cold absorption block 31, cold end internal and external switching three-way joint 32, cold end circulation pump 33, cold end liquid storage container 34, Cold end temperature sensor 35, cold end electrically controlled two-position three-way valve 36, cold end fan fin radiator 37, cold end direct-connected one-way valve 38, cold end heat dissipation connection one-way valve 39, cold end internal switching three-way connector 310, hot end switching electrically controlled three-way valve 41, cold end switching electrically controlled three-way valve 42, hot end one-way valve 43, cold end one-way valve 44, hot and cold switching three-way connector 45, reflux electrically controlled three-way valve 46, hot and cold flexible applicator 5 and drive control module 6.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention. DETAILED DESCRIPTION

[0034] Example: Figure 1 As shown, a portable high-efficiency rapid alternating hot and cold treatment system includes a thermoelectric heat pump 1, a high-temperature circulation module 2, a low-temperature circulation module 3, a hot and cold switching module 4, a hot and cold flexible application device 5 and a drive control module 6. The hot end of the thermoelectric heat pump 1 is connected to the high-temperature circulation module 2, the high-temperature circulation module 2 is respectively connected to the low-temperature circulation module 3 and the hot and cold switching module 4, the other end of the hot and cold switching module 4 is connected to the hot and cold flexible application device 5, and the drive control module 6 is respectively connected to the thermoelectric heat pump 1, the high-temperature circulation module 2, the low-temperature circulation module 3, and the hot and cold switching module 4.

[0035] In the portable high-efficiency rapid alternating hot and cold treatment system, the thermoelectric heat pump 1 is a device that can utilize the thermoelectric effect and the Peltier effect to transfer heat.

[0036] The high-temperature circulation module 2 includes a heat absorption block 21, a hot-end internal and external switching three-way joint 22, a hot-end circulation pump 23, a hot-end liquid storage container 24, a hot-end temperature sensor 25, a hot-end electrically controlled two-position three-way valve 26, a hot-end fan fin radiator 27, a hot-end direct-connected one-way valve 28, a hot-end heat dissipation connection one-way valve 29 and a hot-end internal switching three-way joint 210.

[0037] The hot end internal and external switching three-way joint 22, the hot end circulation pump 23, the hot end liquid storage container 24, the hot end temperature sensor 25, the hot end electrically controlled two-position three-way valve 26, the hot end fan fin radiator 27, the hot end direct-connected one-way valve 28, the hot end heat dissipation connection one-way valve 29 and the hot end internal switching three-way joint 210 and the heat absorption block 21 are connected in sequence.

[0038] The low-temperature circulation module 3 includes a cold absorption block 31, a cold end internal and external switching three-way joint 32, a cold end circulation pump 33, a cold end liquid storage container 34, a cold end temperature sensor 35, a cold end electrically controlled two-position three-way valve 36, a cold end fan fin radiator 37, a cold end direct-connected one-way valve 38, a cold end heat dissipation connection one-way valve 39 and a cold end internal switching three-way joint 310.

[0039] The cold end internal and external switching three-way joint 32, the cold end circulation pump 33, the cold end liquid storage container 34, the cold end temperature sensor 35, the cold end electrically controlled two-position three-way valve 36, the cold end fan fin radiator 37, the cold end direct-connected one-way valve 38, the cold end heat dissipation connection one-way valve 39 and the cold end internal switching three-way joint 310 and the cold end absorption block 31 are connected in sequence.

[0040] The hot-cold switching module 4 includes a hot-end switching electrically controlled three-way valve 41 , a cold-end switching electrically controlled three-way valve 42 , a hot-end one-way valve 43 , a cold-end one-way valve 44 , a hot-cold switching three-way joint 45 and a return electrically controlled three-way valve 46 .

[0041] The hot-end switching electrically controlled three-way valve 41 is connected to the hot-end one-way valve 43 , the cold-end switching electrically controlled three-way valve 42 is connected to the cold-end one-way valve 44 , and both the hot-end one-way valve 43 and the cold-end one-way valve 44 are connected to the hot-cold switching three-way joint 45 .

[0042] The hot and cold flexible application device 5 has an ergonomic and flexible application.

[0043] The drive control module 6 is respectively connected to the drive control outputs of the thermoelectric heat pump 1, the hot end circulation pump 23, the hot end electrically controlled two-position three-way valve 26, the hot end fan fin radiator 27, the cold end circulation pump 33, the cold end electrically controlled two-position three-way valve 36, the cold end fan fin radiator 37, the hot end switching electrically controlled three-way valve 41, the cold end switching electrically controlled three-way valve 42 and the reflux electrically controlled three-way valve 46; the drive control module 6 is respectively connected to the inputs of the hot end temperature sensor 25 and the cold end temperature sensor 35.

[0044] A portable high-efficiency rapid heating and cooling alternation method comprises the following steps:

[0045] like Figure 2As shown, during the preheating and precooling phase of the power-on operation: the drive control module 6 starts the thermoelectric heat pump 1 and controls the hot-end electrically controlled two-position three-way valve 26, the cold-end electrically controlled two-position three-way valve 36, the hot-end switching electrically controlled three-way valve 41 and the cold-end switching electrically controlled three-way valve 42. The hot end is sequentially connected to the heat absorbing block 21, the hot-end switching electrically controlled three-way valve 41, the hot-end internal and external switching three-way connector 22, the hot-end circulation pump 23, the hot-end liquid storage container 24, the hot-end electrically controlled two-position three-way valve 26, the hot-end direct current valve ... The hot end circulation connected to the one-way valve 28 and the hot end internal switching three-way joint 210 heats the liquid temperature to the set temperature; the cold end realizes the cold end circulation connected in sequence to the cold absorption block 31, the cold end switching electric three-way valve 41, the cold end internal and external switching three-way joint 32, the cold end circulation pump 33, the cold end liquid storage container 34, the cold end electric two-position three-way valve 36, the cold end direct-connected one-way valve 38 and the cold end internal switching three-way joint 310 to cool the liquid temperature to the set temperature.

[0046] like Figure 3 As shown, in the high-temperature stage of heat output of the heat cycle: on the basis of ①, the drive control module 6 controls the hot-end switching electric-controlled three-way valve 41 and the return electric-controlled three-way valve 46, and adds a circulation through the hot-end switching electric-controlled three-way valve 41, the hot-end one-way valve 43, the hot-cold switching three-way connector 45 and the return electric-controlled three-way valve 46 to the hot-end circulation to achieve high-temperature output.

[0047] Control the cold end electric controlled two-position three-way valve 36 and add a cold end fan fin radiator 37 to the cold end circulation to ensure that the cold end temperature remains constant.

[0048] like Figure 4 As shown, in the low-temperature stage of the cold cycle heat output: on the basis of ①, the drive control module 6 controls the cold-end switching electric-controlled three-way valve 42 and the return electric-controlled three-way valve 46, and adds a circulation through the cold-end switching electric-controlled three-way valve 42, the cold-end one-way valve 44, the hot and cold switching three-way connector 45 and the return electric-controlled three-way valve 46 to the cold-end cycle to achieve low-temperature output.

[0049] Control the hot end electric two-position three-way valve 26 and add a hot end fan fin radiator 27 to the hot end circulation to ensure that the hot end temperature remains constant.

[0050] Control the time of ② and ③ and repeat steps ② and ③ to achieve personalized alternating hot and cold treatment.

Claims

1. A portable high-efficiency rapid alternating hot and cold treatment system, comprising a thermoelectric heat pump (1), a high-temperature circulation module (2), a low-temperature circulation module (3), a hot and cold switching module (4), a hot and cold flexible patch device (5) and a drive control module (6), wherein the hot end of the thermoelectric heat pump (1) is connected to the high-temperature circulation module (2), the high-temperature circulation module (2) is connected to the low-temperature circulation module (3) and the hot and cold switching module (4) respectively, the other end of the hot and cold switching module (4) is connected to the hot and cold flexible patch device (5), and the drive control module (6) is connected to the thermoelectric heat pump (1), the high-temperature circulation module (2), the low-temperature circulation module (3) and the hot and cold switching module (4) respectively.

2. The portable high-efficiency rapid alternating hot and cold therapy system according to claim 1 is characterized in that The thermoelectric heat pump (1) is a device that can utilize the thermoelectric effect (Peltier effect) to transfer heat.

3. The portable high-efficiency rapid alternating hot and cold therapy system according to claim 1 is characterized in that The high-temperature circulation module (2) comprises a heat absorbing block (21), a hot end internal and external switching three-way joint (22), a hot end circulation pump (23), a hot end liquid storage container (24), a hot end temperature sensor (25), a hot end electric-controlled two-position three-way valve (26), a hot end fan fin radiator (27), a hot end direct-connection one-way valve (28), a hot end heat dissipation connection one-way valve (29), and a hot end internal switching three-way joint (210).

4. The portable high-efficiency rapid alternating cold and heat treatment system according to claim 3 is characterized in that The hot end internal and external switching three-way joint (22), the hot end circulation pump (23), the hot end liquid storage container (24), the hot end temperature sensor (25), the hot end electric control two-position three-way valve (26), the hot end fan fin radiator (27), the hot end direct connection one-way valve (28), the hot end heat dissipation connection one-way valve (29), the hot end internal switching three-way joint (210) and the heat absorption block (21) are connected in sequence.

5. The portable high-efficiency rapid alternating hot and cold therapy system according to claim 1 is characterized in that The low-temperature circulation module (3) comprises a cold absorption block (31), a cold end internal and external switching three-way joint (32), a cold end circulation pump (33), a cold end liquid storage container (34), a cold end temperature sensor (35), a cold end electric control two-position three-way valve (36), a cold end fan fin radiator (37), a cold end direct connection one-way valve (38), a cold end heat dissipation connection one-way valve (39) and a cold end internal switching three-way joint (310).

6. The portable high-efficiency rapid alternating cold and heat treatment system according to claim 5 is characterized in that The cold end internal and external switching three-way joint (32), the cold end circulation pump (33), the cold end liquid storage container (34), the cold end temperature sensor (35), the cold end electric control two-position three-way valve (36), the cold end fan fin radiator (37), the cold end direct connection one-way valve (38), the cold end heat dissipation connection one-way valve (39), the cold end internal switching three-way joint (310) and the cold end absorption block (31) are connected in sequence.

7. The portable high-efficiency rapid alternating cold and heat therapy system according to claim 1 is characterized in that The hot-cold switching module (4) comprises a hot-end switching electrically controlled three-way valve (41), a cold-end switching electrically controlled three-way valve (42), a hot-end one-way valve (43), a cold-end one-way valve (44), a hot-cold switching three-way connector (45), and a return electrically controlled three-way valve (46).

8. The portable high-efficiency rapid alternating cold and heat therapy system according to claim 7 is characterized in that The hot-end switching electrically controlled three-way valve (41) is connected to the hot-end one-way valve (43), the cold-end switching electrically controlled three-way valve (42) is connected to the cold-end one-way valve (44), and both the hot-end one-way valve (43) and the cold-end one-way valve (44) are connected to the hot-cold switching three-way joint (45).

9. The portable high-efficiency rapid alternating hot and cold therapy system according to claim 1 is characterized in that The hot and cold flexible application device (5) has a flexible application that conforms to ergonomics.

10. The portable high-efficiency rapid alternating cold and heat treatment system according to claim 1 is characterized in that The drive control module (6) is respectively connected to the drive control outputs of the thermoelectric heat pump (1), the hot end circulation pump (23), the hot end electric control two-position three-way valve (26), the hot end fan fin radiator (27), the cold end circulation pump (33), the cold end electric control two-position three-way valve (36), the cold end fan fin radiator (37), the hot end switching electric control three-way valve (41), the cold end switching electric control three-way valve (42) and the return electric control three-way valve (46); the drive control module (6) is respectively connected to the inputs of the hot end temperature sensor (25) and the cold end temperature sensor (35).

11. A portable high-efficiency rapid heating and cooling method, characterized by The following steps are involved: ① Start-up preheating and precooling stage: the drive control module (6) starts the thermoelectric heat pump (1), and controls the hot end electric control two-position three-way valve (26), the cold end electric control two-position three-way valve (36), the hot end switching electric control three-way valve (41) and the cold end switching electric control three-way valve (42), and the hot end is connected in sequence to the heat absorption block (21), the hot end switching electric control three-way valve (41), the hot end internal and external switching three-way connector (22), the hot end circulation pump (23), the hot end liquid storage container (24), the hot end electric control two-position three-way valve (26), the hot end The hot end circulation of the direct-connected one-way valve (28) and the hot end internal switching three-way joint (210) heats the liquid temperature to the set temperature; the cold end realizes the cold end circulation of the cold end which is sequentially connected to the cold absorption block (31), the cold end switching electric control three-way valve (41), the cold end internal and external switching three-way joint (32), the cold end circulation pump (33), the cold end liquid storage container (34), the cold end electric control two-position three-way valve (36), the cold end direct-connected one-way valve (38) and the cold end internal switching three-way joint (310) to cool the liquid temperature to the set temperature. ② High-temperature stage of heat cycle heat output: Based on ①, the drive control module (6) controls the hot end switching electric control three-way valve (41) and the return electric control three-way valve (46), and adds a circulation through the hot end switching electric control three-way valve (41), the hot end one-way valve (43), the hot and cold switching three-way connector (45) and the return electric control three-way valve (46) to the hot end circulation to achieve high-temperature output. Control the cold end electric controlled two-position three-way valve (36), add a cold end fan fin radiator (37) to the cold end circulation to ensure that the cold end temperature remains constant. ③ Cold cycle heat output low temperature stage: Based on ①, the drive control module (6) controls the cold end switching electric control three-way valve (42) and the return electric control three-way valve (46), and adds a circulation through the cold end switching electric control three-way valve (42), the cold end one-way valve (44), the hot and cold switching three-way connector (45) and the return electric control three-way valve (46) to the cold end circulation to achieve low temperature output. Control the hot end electric two-position three-way valve (26), add a hot end fan fin radiator (27) to the hot end circulation to ensure that the hot end temperature remains constant. Control the time of ② and ③ and repeat steps ② and ③ to achieve personalized alternating hot and cold treatment.