Phototherapy chair

Abstract

The utility model discloses a phototherapy chair which comprises a base, a light-transmitting plate, a phototherapy assembly and a liquid cooling assembly, the light-transmitting plate is arranged on the base, the light-transmitting plate is provided with a lying area, and a heat exchange flow channel is distributed in the lying area; the phototherapy assembly is arranged on the base and faces the light-transmitting plate; the liquid cooling assembly is arranged on the base and communicates with the heat exchange runner through a circulation pipeline. According to the technical scheme, heat conducted to a user in the using process can be reduced, and the using comfort of the user is improved.

Description

Technical Field

[0001] The utility model relates to the field of phototherapy equipment, in particular to a phototherapy chair. Background Art

[0002] The theoretical basis of phototherapy is that after biological tissue absorbs light energy, cells and mitochondria, among other tissues, convert this light energy into heat and chemical energy, which in turn triggers a series of biochemical reactions within the body. Reclining for phototherapy is a popular trend in the phototherapy industry, but this also requires greater comfort in the equipment. Temperature rise is a common technical challenge faced by medical devices. The mainstream solution on the market is to limit the device's temperature rise by increasing air flow inside and outside the device through fans. However, due to the large size and high power of reclining phototherapy devices, temperature rise is a significant issue, and fans are difficult to dissipate effectively. As the user's phototherapy time increases, a significant amount of heat is transferred to the user's body through the panel in contact with the user, affecting user comfort. Utility Model Content

[0003] The main purpose of the present invention is to provide a light therapy chair, which aims to reduce the heat conducted to the user during use and improve the user's comfort.

[0004] To achieve the above-mentioned purpose, the light therapy chair proposed in the present invention comprises:

[0005] base;

[0006] A light-transmitting plate is provided on the base, the light-transmitting plate has a lying area, and a heat exchange flow channel is arranged in the lying area;

[0007] a light therapy component, disposed on the base and facing the light-transmitting plate; and

[0008] The liquid cooling component is arranged on the base, and the liquid cooling component is connected with the heat exchange channel through a circulation pipeline.

[0009] Optionally, the lying area is provided with a plurality of the heat exchange channels, and each of the heat exchange channels is connected to the circulation pipeline.

[0010] Optionally, the lying area is divided into a back area, a leg area and a sitting area located between the back area and the leg area, the sitting area is provided with a first interface, the back area and the leg area are respectively provided with a second interface at one end away from each other, and the heat exchange channel is provided between the first interface and any second interface.

[0011] Optionally, the circulation pipeline includes a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is connected to the first interface, and the liquid outlet pipe is connected to the second interface.

[0012] Optionally, a first confluence cavity and a second confluence cavity are provided in the light-transmitting plate, the first confluence cavity is located between the first interface and the heat exchange channel, and a second confluence cavity is provided between each second interface and the corresponding heat exchange channel, and the dimensions of the first confluence cavity and the second confluence cavity in the thickness direction of the light-transmitting plate are larger than the dimensions of the heat exchange channel in the thickness direction of the light-transmitting plate.

[0013] Optionally, the phototherapy chair further includes a temperature sensor, which is disposed on the light-transmitting plate and extends into the heat exchange channel.

[0014] Optionally, the liquid cooling component has a first heat exchange chamber, a first heat exchange part, and a semiconductor refrigeration element. The first heat exchange part is at least partially located in the first heat exchange chamber. The cold end of the semiconductor refrigeration element is thermally connected to the first heat exchange part, and the circulation pipeline connects the first heat exchange chamber and the heat exchange channel.

[0015] Optionally, the liquid cooling component also has a second heat exchange chamber and a second heat exchange part, the second heat exchange chamber is filled with a heat exchange medium, the heat exchange medium is a phase change material, the second heat exchange part is at least partially located in the second heat exchange chamber and in contact with the heat exchange medium, and the second heat exchange part is thermally conductively connected to the hot end of the semiconductor refrigeration component.

[0016] Optionally, the first heat exchange cavity has a liquid outlet, and the liquid cooling component further includes a water pump, which is connected between the liquid outlet and the heat exchange channel.

[0017] Optionally, the phototherapy assembly includes multiple circuit boards and multiple heat sinks, each of the circuit boards is provided with multiple light-emitting elements, the light-emitting elements are arranged toward the light-transmitting plate, and the heat sink is provided on the side of each circuit board facing away from the light-emitting elements.

[0018] The technical solution of the present invention is to set a heat exchange flow channel in the light-transmitting plate for the user to lie down, and use the liquid cooling component to dissipate heat from the light-transmitting plate, which can effectively block the heat generated by the phototherapy component, avoid a large amount of heat from being conducted from the light-transmitting plate to the user's body, and greatly reduce the heat conducted from the phototherapy chair to the user during use. At the same time, after the light-transmitting plate is cooled by the liquid cooling component, the user's body can also be cooled by the light-transmitting plate when the user lies on it, which greatly reduces the impact of the heat generated by the phototherapy component on the user during use and improves the user's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of an embodiment of the light therapy chair of the present invention;

[0021] Figure 2 for Figure 1 a cross-sectional view of the middle light-transmitting plate;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0024] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0025] Figure 6 for Figure 1 Cross-sectional view of the phototherapy chair;

[0026] Figure 7 for Figure 6 Enlarged view of point D in the middle;

[0027] Figure 8 for Figure 6 Enlarged view of point E in the middle.

[0028] Description of Figure Numbers:

[0029] 10. Base; 20. Phototherapy component; 21. Circuit board; 22. Light-emitting element; 23. Heat dissipation element; 30. Translucent plate; 31. Lying area; 311. Back area; 312. Sitting area; 313. Leg area; 33. Heat exchange channel; 34. First interface; 35. Second interface; 36. First confluence chamber; 37. Second confluence chamber; 40. Liquid cooling component; 41. Shell; 42. First heat exchange chamber; 421. Liquid outlet; 422. Liquid return port; 43. Second heat exchange chamber; 44. First heat exchange part; 441. First heat conduction plate; 442. First fin; 45. Second heat exchange part; 451. Second heat conduction plate; 452. Second fin; 46. Semiconductor refrigeration component; 47. Heat exchange medium; 48. Heat dissipation component; 51. Liquid inlet pipe; 52. Liquid outlet pipe; 60. Temperature sensor.

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The utility model provides a light therapy chair.

[0035] In the embodiment of the present utility model, Figures 1 to 8 As shown, the phototherapy chair includes a base 10, a light-transmitting plate 30, a phototherapy component 20 and a liquid cooling component 40. The light-transmitting plate 30 is arranged on the base 10, and the light-transmitting plate 30 has a lying area 31, and a heat exchange channel 33 is arranged in the lying area 31; the phototherapy component 20 is arranged on the base 10 and is arranged toward the light-transmitting plate 30; the liquid cooling component 40 is arranged on the base 10, and the liquid cooling component 40 is connected to the heat exchange channel 33 through a circulation pipeline.

[0036] Specifically, the lying area 31 is used for a user to lie down. When the user lies in the lying area 31, the light therapy assembly 20 emits therapeutic light through the light-transmitting plate 30, thereby performing light therapy on the user's body. The light-transmitting plate 30 can be made entirely of a transparent material, or only partially of a transparent material.

[0037] The liquid cooling assembly 40 includes a water pump. The phototherapy chair also includes a circuit assembly (including a control circuit). The water pumps of both the phototherapy assembly 20 and the liquid cooling assembly 40 are electrically connected to the circuit assembly. The water pump is used to drive the coolant to circulate between the liquid cooling assembly 40 and the heat exchange channel 33. As the coolant flows through the liquid cooling assembly 40, it exchanges heat with the coolant to lower its temperature, causing the low-temperature coolant to flow into the heat exchange channel 33. In the heat exchange channel 33, the low-temperature coolant exchanges heat with the light-transmitting plate 30, absorbing heat from the light-transmitting plate 30 and lowering its temperature. Finally, the coolant flowing out of the heat exchange channel 33 becomes a high-temperature (compared to the "low-temperature") coolant, which then flows through the liquid cooling assembly 40 to be cooled and returned to a low-temperature coolant.

[0038] The technical solution of the present invention is to set a heat exchange channel 33 in the light-transmitting plate 30 for the user to lie down, and use the liquid cooling component 40 to dissipate heat from the light-transmitting plate 30, so as to effectively block the heat generated by the phototherapy component 20, avoid a large amount of heat from being conducted from the light-transmitting plate 30 to the user's body, and greatly reduce the heat conducted from the phototherapy chair to the user during use. At the same time, after the light-transmitting plate 30 is cooled by the liquid cooling component 40, the user's body can also be cooled by the light-transmitting plate 30 when the user lies on it, which greatly reduces the impact of the heat generated by the phototherapy component 20 on the user during use and improves the user's comfort.

[0039] In some embodiments, the lying area 31 is provided with a plurality of heat exchange channels 33, and each heat exchange channel 33 is connected to a circulation pipeline. Specifically, the circulation pipeline includes a liquid inlet pipe 51 and a liquid outlet pipe 52, and one end of the plurality of heat exchange channels 33 is connected to the liquid inlet pipe 51, and the other end of the plurality of heat exchange channels 33 is connected to the liquid outlet pipe 52. In this way, the length of a single heat exchange channel 33 can be shortened, and at the same time, the temperature of the coolant initially entering the plurality of heat exchange channels 33 is basically the same, which can improve the heat exchange efficiency, and also make the heat exchange of each area of ​​the lying area 31 uniform, thereby improving the user experience. Of course, in other embodiments, only one heat exchange channel 33 can be provided, and the heat exchange effect can be improved by increasing the power of the liquid cooling component 40.

[0040] The heat exchange channel 33 can take various forms. For example, in one embodiment, the light-transmitting plate 30 is configured as a hollow structure, with the hollow area serving as the heat exchange channel 33. An inlet and an outlet can be provided at each end of the light-transmitting plate 30, thereby forming a heat exchange channel 33 within the light-transmitting plate 30. Alternatively, a first interface 34 can be provided in the middle of the light-transmitting plate 30, with second interfaces 35 provided at both ends of the light-transmitting plate 30 (with the first interface 34 serving as the inlet and the second interface 35 serving as the outlet; alternatively, with the second interface 35 serving as the inlet and the first interface 34 serving as the outlet), thereby forming a heat exchange channel 33 between each second interface 35 and the first interface 34. In this case, the two heat exchange channels 33 can be separated by a partition, or they can be separated by a partition.

[0041] The hollow area can generally be shaped as a relatively regular flat space, with the first interface 34 positioned at the center of the flat space and the two second interfaces 35 distributed on either side of the flat space in the left-right direction. Thus, the left and right halves of the flat space each constitute a heat exchange channel 33. Alternatively, the light-transmitting plate 30 can be curved, thereby forming a curved flat space. The first interface 34 can be positioned at the lowest point of the flat space, and the two second interfaces 35 can be distributed on either side of the flat space in the left-right direction. The space from the lowest point of the flat space to the left side constitutes one heat exchange channel 33, and the space from the lowest point of the flat space to the right side constitutes another heat exchange channel 33.

[0042] In another embodiment, the light-transmitting plate 30 includes a bottom shell and a panel covering the bottom shell. The bottom shell is provided with a plurality of ribs, and the plurality of ribs separate the cavity between the bottom shell and the panel to form one or more heat exchange channels 33 .

[0043] In another embodiment, one or more metal pipes are embedded in the light-transmitting plate 30 , and each metal pipe forms a heat exchange channel 33 .

[0044] In some embodiments, the reclining area 31 is divided into a back area 311, a leg area 313, and a sitting area 312 located between the back area 311 and the leg area 313. The sitting area 312 is provided with a first port 34, and a second port 35 is provided at each end of the back area 311 and the leg area 313, facing away from each other. A heat exchange channel 33 is provided between the first port 34 and each of the second ports 35. Specifically, when a user lies in the reclining area 31, their back is located in the back area 311, their buttocks are located in the sitting area 312, and their legs are located in the leg area 313. Both the back area 311 and the leg area 313 have heat exchange channels 33, and these channels extend into the sitting area 312 to communicate with the first port 34. This allows the first port 34 to connect multiple heat exchange channels 33, reducing the number of ports and piping, and simplifying the structure of the phototherapy chair.

[0045] Optionally, the liquid inlet pipe 51 is connected to the first interface 34, and the liquid outlet pipe 52 is connected to the second interface 35. That is, after the low-temperature coolant enters the light-transmitting plate 30 from the first interface 34, it is diverted to each heat exchange channel 33. Since the heat of the phototherapy component 20 is concentrated in the middle area of ​​the light-transmitting plate 30, the heat dissipation efficiency is lower than that of the edge part. By connecting the liquid inlet pipe 51 to the first interface 34, the heat dissipation of the middle area of ​​the light-transmitting plate 30 can be carried out first, which can improve the heat exchange effect of the middle part of the phototherapy chair and enhance the user comfort. Of course, in other embodiments, the second interface 35 can also be connected to the liquid inlet pipe 51, and the first interface 34 can be connected to the liquid outlet pipe 52.

[0046] In some embodiments, a first confluence cavity 36 and a second confluence cavity 37 are provided within the light-transmitting plate 30. The first confluence cavity 36 is located between the first interface 34 and the heat exchange channel 33. A second confluence cavity 37 is provided between each second interface 35 and the corresponding heat exchange channel 33. The dimensions of the first and second confluence cavities 36 and 37 in the thickness direction of the light-transmitting plate 30 are greater than the dimensions of the heat exchange channel 33 in the thickness direction of the light-transmitting plate 30. In other words, the dimensions of the first and second confluence cavities 36 and 37 in the thickness direction of the light-transmitting plate 30 are greater than the dimensions of the heat exchange channel 33 in the thickness direction of the light-transmitting plate 30. This facilitates pipeline installation and reduces the coolant flow rate between the heat exchange channel 33 and the circulation pipeline, thereby reducing noise.

[0047] In some embodiments, the light therapy chair further includes a temperature sensor 60, which is disposed on the light-transmitting plate 30 and extends into the heat exchange channel 33. Specifically, the temperature sensor 60 is electrically connected to the circuit assembly and can adjust the operating state of the liquid cooling assembly 40 based on the real-time temperature detected by the temperature sensor 60 to ensure that the light-transmitting plate 30 remains within an appropriate temperature range, thereby enhancing the user experience.

[0048] In some embodiments, the liquid cooling assembly 40 comprises a first heat exchange chamber 42, a first heat exchange portion 44, and a semiconductor refrigeration element 46. The first heat exchange portion 44 is at least partially located in the first heat exchange chamber 42. The cold end of the semiconductor refrigeration element 46 is thermally connected to the first heat exchange portion 44. A circulation pipeline connects the first heat exchange chamber 42 and the heat exchange channel 33. Specifically, the first heat exchange chamber 42 has a liquid outlet 421 and a liquid return port 422. The liquid outlet 421 is connected to one end of the heat exchange channel 33 via a liquid inlet pipe 51, and the liquid return port 422 is connected to the other end of the heat exchange channel 33 via a liquid outlet pipe 52. The first heat exchange portion 44 is located between the liquid return port 422 and the liquid outlet 421. That is, when the coolant flows back from the heat exchange channel 33 into the first heat exchange chamber 42, it will pass through the first heat exchange portion 44. When the semiconductor cooler 46 is operating, its cold end absorbs heat, specifically the heat from the coolant in the first heat exchange portion 44 and the first heat exchange chamber 42. This reduces the temperature of the coolant flowing to the liquid outlet 421, resulting in a low-temperature coolant. Using the semiconductor cooler 46 to cool the coolant can reduce the size of the liquid cooling assembly 40, reduce noise, and enhance user comfort. Of course, in other embodiments, a thermoacoustic cooling device or other similar device can also be used to cool the coolant. Furthermore, in other embodiments, a return pipe can be connected to the first heat exchange portion 44 via thermal conduction.

[0049] Optionally, the first heat exchange portion 44 has a first heat conducting plate 441 and a plurality of first fins 442 , and the first fins 442 extend into the first heat exchange cavity 42 , thereby increasing the contact area between the coolant and the first heat exchange portion 44 and improving the heat exchange effect.

[0050] In some embodiments, the liquid cooling assembly 40 further comprises a second heat exchange chamber 43 and a second heat exchange portion 45. The second heat exchange chamber 43 is filled with a heat exchange medium 47, which is a phase change material. The second heat exchange portion 45 is at least partially located within the second heat exchange chamber 43 and in contact with the heat exchange medium 47. The second heat exchange portion 45 is thermally conductively connected to the hot end of the peltier element 46. Specifically, when the peltier element 46 is operating, the hot end of the peltier element 46 releases heat, and the second heat exchange portion 45 is capable of transferring the heat released by the peltier element 46 to the heat exchange medium 47. Because the heat exchange medium 47 is a phase change material, it is solid at room temperature. When the temperature of the second heat exchange portion 45 exceeds the phase change critical temperature of the heat exchange medium 47, the heat exchange medium 47 melts. During this process, the heat exchange medium 47 absorbs a large amount of heat, and the temperature of the melted heat exchange medium 47 stabilizes at the phase change critical temperature for a period of time, thereby collecting and storing waste heat from the liquid cooling assembly 40 and preventing the heat from being rapidly dissipated into the environment. When the liquid cooling assembly 40 stops or pauses, the heat exchange medium 47 will continue to slowly release heat into the environment. After continuing to cool and release heat, the heat exchange medium 47 solidifies when its temperature drops below the critical phase transition temperature. This temperature remains stable at the critical phase transition temperature for an extended period until the heat exchange medium 47 completely solidifies and gradually cools to the ambient temperature (room temperature). During this process, the heat dissipated by the phototherapy chair will not exceed the critical phase transition temperature of the heat exchange medium 47, preventing a sudden increase in the ambient temperature. This allows for a gradual release of heat generated during operation, thus making the device environmentally friendly. Furthermore, this eliminates the need for numerous heat dissipation holes on the base 10 for passive heat dissipation, improves the waterproof rating of the phototherapy chair, and significantly reduces the difficulty of cleaning and maintaining the chair. Of course, in other embodiments, a cooling fan may also be provided at the hot end of the semiconductor refrigeration element 46.

[0051] Optionally, the second heat exchange part 45 has a second heat conducting plate 451 and a plurality of second fins 452 , and the second fins 452 extend into the second heat exchange cavity 43 , thereby increasing the contact area between the heat exchange medium 47 and the second heat exchange part 45 and improving the heat exchange effect.

[0052] Optionally, the heat exchange medium 47 is paraffin, which has a critical phase change temperature of 30°C-40°C, a latent heat range of 190 to 245 kJ / kg during the phase change process, stable chemical properties, and low price, and can take into account both cost and use effect.

[0053] Among them, the first heat exchange chamber 42 and the second heat exchange chamber 43 can be formed in one shell 41 (the shell 41 can be made of a material with good thermal insulation), or two independent shells 41 can be used, in which one shell 41 forms the first heat exchange chamber 42 and the other shell 41 forms the second heat exchange chamber 43. During installation, the two shells 41, the first heat exchange part 44, the second heat exchange part 45 and the semiconductor refrigeration component 46 are assembled (the shell 41 with the second heat exchange chamber 43 can be made of metal material to facilitate heat dissipation, and an insulation structure is provided between the two shells 41).

[0054] In some embodiments, the liquid cooling assembly 40 further has a heat dissipation component 48, which is thermally connected to the heat dissipation medium. The heat dissipation component 48 is at least partially located outside the second heat exchange cavity 43 to dissipate the heat of the heat exchange medium 47 to the environment.

[0055] In some embodiments, the first heat exchange chamber 42 has a liquid outlet 421, and the liquid cooling assembly 40 further includes a water pump connected between the liquid outlet 421 and the heat exchange channel 33. This prevents the water pump from heating up, thereby extending its service life. Furthermore, when the water pump is connected between the liquid outlet 421 and the first interface 34, it facilitates the routing of piping between the liquid outlet 421 and the first interface 34. Of course, in other embodiments, the water pump can also be located between the liquid return port 422 and the liquid inlet.

[0056] In some embodiments, the light therapy assembly 20 includes multiple circuit boards 21 and multiple heat sinks 23. Each circuit board 21 is provided with multiple light-emitting elements 22, which are arranged toward the light-transmitting plate 30. Each circuit board 21 is provided with a heat sink 23 on the side facing away from the light-emitting elements 22. Specifically, the multiple circuit boards 21 are arranged inside the light-transmitting plate 30, which increases the light therapy area and improves the heat dissipation effect of the circuit boards 21 through the heat sinks 23.

[0057] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A phototherapy chair, characterized in that: include: base; A light-transmitting plate is provided on the base, the light-transmitting plate has a lying area, and a heat exchange flow channel is arranged in the lying area; A light therapy component is provided on the base and is disposed toward the light-transmitting plate; as well as The liquid cooling component is arranged on the base, and the liquid cooling component is connected with the heat exchange channel through a circulation pipeline.

2. The light therapy chair according to claim 1, wherein: The lying area is provided with a plurality of the heat exchange channels, and each of the heat exchange channels is connected to the circulation pipeline.

3. The light therapy chair according to claim 2, wherein: The lying area is divided into a back area, a leg area and a sitting area located between the back area and the leg area. The sitting area is provided with a first interface, and the back area and the leg area are respectively provided with a second interface at one end away from each other. The heat exchange channel is provided between the first interface and any second interface.

4. The light therapy chair according to claim 3, characterized in that: The circulation pipeline includes a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is connected to the first interface, and the liquid outlet pipe is connected to the second interface.

5. The light therapy chair according to claim 3, wherein: A first confluence cavity and a second confluence cavity are provided in the light-transmitting plate. The first confluence cavity is located between the first interface and the heat exchange channel. A second confluence cavity is provided between each second interface and the corresponding heat exchange channel. The dimensions of the first confluence cavity and the second confluence cavity in the thickness direction of the light-transmitting plate are larger than the dimensions of the heat exchange channel in the thickness direction of the light-transmitting plate.

6. The light therapy chair according to claim 1, wherein: The phototherapy chair further includes a temperature sensor, which is disposed on the light-transmitting plate and extends into the heat exchange flow channel.

7. The light therapy chair according to any one of claims 1 to 6, characterized in that: The liquid cooling assembly has a first heat exchange chamber, a first heat exchange part, and a semiconductor refrigeration element. The first heat exchange part is at least partially located in the first heat exchange chamber. The cold end of the semiconductor refrigeration element is thermally connected to the first heat exchange part. The circulation pipeline connects the first heat exchange chamber and the heat exchange flow channel.

8. The light therapy chair according to claim 7, wherein: The liquid cooling component also has a second heat exchange cavity and a second heat exchange part. The second heat exchange cavity is filled with a heat exchange medium, and the heat exchange medium is a phase change material. The second heat exchange part is at least partially located in the second heat exchange cavity and in contact with the heat exchange medium. The second heat exchange part is thermally connected to the hot end of the semiconductor refrigeration component.

9. The light therapy chair according to claim 8, characterized in that: The first heat exchange cavity has a liquid outlet, and the liquid cooling component further includes a water pump connected between the liquid outlet and the heat exchange flow channel.

10. The light therapy chair according to claim 1, wherein: The phototherapy assembly includes multiple circuit boards and multiple heat sinks. Each circuit board is provided with multiple light-emitting elements, and the light-emitting elements are arranged toward the light-transmitting plate. The heat sink is provided on the side of each circuit board facing away from the light-emitting elements.

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