Phototherapy equipment and intelligent temperature control method of phototherapy equipment

Abstract

The invention discloses phototherapy equipment and an intelligent temperature control method for the phototherapy equipment, the phototherapy equipment comprises an equipment main body, a phototherapy device and a heat exchange device, the equipment main body is provided with a light-transmitting area and a mounting cavity located below the light-transmitting area, the light-transmitting area is provided with a light-transmitting area, and the light-transmitting area is used for a human body to lie down; the phototherapy device is arranged in the mounting cavity and is arranged corresponding to the light-transmitting area; the heat exchange device is provided with a heat exchange part, a refrigerator and a first chamber, the heat exchange part is used for absorbing heat emitted by the phototherapy device, the refrigerator is provided with a first heat exchange end and a second heat exchange end which are opposite to each other, the first heat exchange end is in heat conduction connection with the heat exchange part, the first chamber is filled with a heat exchange medium, and the second chamber is filled with a second heat exchange medium. The heat exchange medium is a phase change material and is in heat conduction connection with the second heat exchange end. According to the technical scheme, the influence on the environment temperature can be reduced, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of phototherapy, and in particular to a phototherapy device and an intelligent temperature control method for the phototherapy device. Background Art

[0002] The theoretical basis of phototherapy is that after biological tissue absorbs light energy, cells and mitochondria and other tissues convert light energy into heat and chemical energy, which in turn causes a series of biochemical reactions in the body. At present, lying down to receive phototherapy beauty is one of the popular trends in the phototherapy industry. Usually, the phototherapy equipment is set in the form of a recliner or bed. Due to the large size and high power of reclining phototherapy equipment, more heat will be generated during use. The current mainstream solution is to use fans to increase the air flow inside and outside the equipment to dissipate heat. However, this will cause the ambient temperature to rise suddenly, which has a greater impact on the ambient temperature and will also affect the user experience. Summary of the invention

[0003] The main purpose of the present invention is to provide a phototherapy device, aiming to reduce the impact on ambient temperature and improve user experience.

[0004] To achieve the above object, the phototherapy device proposed by the present invention comprises:

[0005] The device body has a light-transmitting area and a mounting cavity located below the light-transmitting area, the light-transmitting area has a light-transmitting area, and the light-transmitting area is used for a human body to lie down;

[0006] a phototherapy device, disposed in the mounting cavity and arranged corresponding to the light-transmitting area; and

[0007] The heat exchange device comprises a heat exchange part, a refrigerator and a first chamber, wherein the heat exchange part is used to absorb the heat emitted by the phototherapy device, the refrigerator has a first heat exchange end and a second heat exchange end opposite to each other, the first heat exchange end is thermally connected to the heat exchange part, the first chamber is filled with a heat exchange medium, the heat exchange medium is a phase change material, and the heat exchange medium is thermally connected to the second heat exchange end.

[0008] Optionally, the heat exchange part has a second chamber, a heat exchange channel connected to the second chamber, and a first heat conductive part at least partially located in the second chamber, the heat exchange channel is used to absorb heat dissipated by the phototherapy device, and the first heat conductive part is thermally connected to the first heat exchange end.

[0009] Optionally, the device body includes a support base and a cover plate covering the support base, the cover plate has the light-transmitting area and the light-transmitting area, and the heat exchange flow channel is located in the cover plate and is arranged corresponding to the light-transmitting area.

[0010] Optionally, the first heat conducting part includes a first heat conducting plate and a plurality of first heat exchange fins located on the first heat conducting plate, the first heat conducting plate is thermally connected to the first heat exchange end, and the plurality of first heat exchange fins are all located in the second chamber.

[0011] Optionally, the heat exchange device further has a second heat conduction part, which includes a second heat conduction plate and a plurality of second heat exchange fins located on the second heat conduction plate, the second heat conduction plate is thermally connected to the second heat exchange end, and the plurality of second heat exchange fins are all located in the first chamber.

[0012] Optionally, the refrigerator includes one or more semiconductor refrigeration elements, and the semiconductor refrigeration element has the first heat exchange end and the second heat exchange end facing away from the first heat exchange end.

[0013] Optionally, the heat exchange device also has a box body, the box body has a partition, the partition divides the inner cavity of the box body to form the second chamber and the first chamber, the partition is provided with a mounting through hole, the semiconductor refrigeration component is arranged in the mounting through hole, the first heat conductive part covers the mounting through hole, the first chamber is provided with a second heat conductive part, the second heat conductive part covers the through hole, and is thermally connected to the second heat exchange end.

[0014] Optionally, the box body has a first opening, which is opposite to the partition and connected to the first chamber. The heat exchange device includes a third heat conducting plate and a radiator. The third heat conducting plate covers the first opening, and the radiator is arranged on the side of the third heat conducting plate away from the partition.

[0015] The present invention further proposes an intelligent temperature control method for phototherapy equipment, wherein the intelligent temperature control method for phototherapy equipment adopts the phototherapy equipment as described above, and the intelligent temperature control method for phototherapy equipment comprises:

[0016] Acquire the real-time temperature of the light-transmitting area on the device body and the preset temperature range formed by the lowest preset temperature and the highest preset temperature;

[0017] The working state of the heat exchange device is adjusted according to the real-time temperature and the preset temperature range to adjust the temperature of the light-transmitting area.

[0018] Optionally, adjusting the working state of the heat exchange device according to the real-time temperature and the preset temperature range to adjust the temperature of the light-transmitting area includes:

[0019] If the real-time temperature is greater than the maximum preset temperature, and the difference between the real-time temperature and the maximum preset temperature is greater than a first threshold, the heat exchange device is controlled to enter a cooling mode to cool the light-transmitting area;

[0020] If the real-time temperature is lower than the lowest preset temperature, and the difference between the real-time temperature and the lowest preset temperature is lower than a second threshold, the heat exchange device is controlled to enter a heating mode to heat the light-transmitting area.

[0021] Optionally, the control method further includes: if the real-time temperature is within the preset temperature range, turning off the heat exchange device to enter a silent mode.

[0022] Optionally, when the heat exchange device enters the cooling mode, the heat exchange device is controlled to be turned on intermittently.

[0023] The technical solution of the present invention adopts a heat exchange device having a heat exchange part, a refrigerator and a first chamber, uses the heat exchange part to absorb the heat emitted by the phototherapy device, and connects the first heat exchange end to the heat exchange part by thermal conduction, and fills the first chamber with a heat exchange medium, so that the heat exchange medium is connected to the second heat exchange end by thermal conduction. In this way, when the refrigerator is working, the heat emitted by the phototherapy device can be absorbed by the first heat exchange end and the heat exchange part. The heat released by the second heat exchange end can be conducted to the heat exchange medium. Since the heat exchange medium adopts phase change material, a large amount of heat can be absorbed during the process of the heat exchange medium being heated and melted, and the temperature of the heat exchange medium melt will be stable at the critical temperature of phase change for a period of time, so as to realize heat collection and storage, and avoid rapid heat dissipation to the environment. When the heat exchange device stops or suspends work, the heat exchange medium will continue to slowly release heat to the environment until the heat exchange medium gradually cools to the ambient temperature. During this process, the heat dissipation temperature of the phototherapy equipment will not be higher than the critical phase change temperature of the heat exchange medium, and will not cause a sudden increase in the ambient temperature. The heat generated during the operation of the phototherapy equipment can be released slowly, thereby reducing the impact on the ambient temperature and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0025] Figure 1 It is a structural schematic diagram of an embodiment of a phototherapy device of the present invention;

[0026] Figure 2 for Figure 1 An exploded view of the phototherapy device;

[0027] Figure 3 for Figure 2 Schematic diagram of the structure of the heat exchange device and water pump;

[0028] Figure 4 for Figure 3 A cross-sectional view of a heat exchange device;

[0029] Figure 5 for Figure 3 A cross-sectional view of the heat exchange device in another direction;

[0030] Figure 6 for Figure 1 A cross-sectional view of a phototherapy device;

[0031] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0032] Figure 8 for Figure 6 The enlarged view of point B in the middle;

[0033] Fig. 9 for Figure 6 Enlarged view of point C in the middle;

[0034] Fig.10 for Figure 6 Enlarged view of point D in the middle.

[0035] Description of Figure Numbers:

[0036] 10. Equipment body; 11. Light-transmitting area; 111. First support part; 112. Second support part; 113. Third support part; 12. Support seat; 13. Cover plate; 131. First interface; 132. Second interface; 20. Heat exchange device; 21. Box; 211. Partition plate; 212. Mounting through hole; 213. Second chamber; 214. Liquid return port; 215. Liquid outlet; 216. First chamber; 217. Heat exchange flow channel ; 22. First heat-conducting part; 221. First heat-conducting plate; 222. First heat-exchange fin; 23. Second heat-conducting part; 231. Second heat-conducting plate; 232. Second heat-exchange fin; 24. Semiconductor refrigeration element; 26. Water pump; 271. Third heat-conducting plate; 272. Radiator; 281. Liquid supply pipe; 282. Liquid return pipe; 30. Phototherapy device; 31. Circuit board; 32. Light-emitting element; 33. Heat sink; 40. Circuit assembly.

[0037] 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

[0038] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0039] 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 components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] 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 used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions, taking "A and / or B as an example", including 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 it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is 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.

[0041] The present invention provides a light therapy device.

[0042] In the embodiment of the present invention, Figures 1 to 10 As shown, the phototherapy equipment includes an equipment body 10, a phototherapy device 30 and a heat exchange device 20. The equipment body 10 has a light-transmitting area 11 and an installation cavity located below the light-transmitting area 11. The light-transmitting area 11 is used for a human body to lie down; the phototherapy device 30 is arranged in the installation cavity and is arranged corresponding to the light-transmitting area.

[0043] The heat exchange device 20 has a heat exchange part, a refrigerator and a first chamber 216. The heat exchange part is used to absorb the heat emitted by the phototherapy device 30. The refrigerator has a first heat exchange end and a second heat exchange end relative to each other. The first heat exchange end is thermally connected to the heat exchange part. The first chamber 216 is filled with a heat exchange medium, which is a phase change material. The heat exchange medium is thermally connected to the second heat exchange end.

[0044] When the user lies in the light-transmitting area 11 , the user's body can cover at least a portion of the light-transmitting area, so that when the phototherapy device 30 emits therapeutic light through the light-transmitting area, phototherapy can be performed on the user's body.

[0045] Among them, the heat exchange part can be arranged in the phototherapy device 30 to directly absorb the heat generated by the phototherapy device 30; it can also be arranged between the light-transmitting area 11 and the phototherapy device 30 to absorb the heat emitted by the phototherapy device 30 toward the light-transmitting area 11.

[0046] The phototherapy device also includes a circuit assembly 40, which has a control circuit, and the phototherapy device 30 and the refrigerator are both electrically connected to the control circuit. The refrigerator can be a magnetic refrigerator or a semiconductor refrigerator 24, etc. When the refrigerator is working, the first heat exchange end absorbs heat, and the second heat exchange end releases heat. The first heat exchange end is connected to the heat exchange part by thermal conduction, so that the heat emitted by the phototherapy device 30 can be absorbed by the first heat exchange end and the heat exchange part to achieve cooling. At the same time, the heat released by the second heat exchange end can be conducted to the heat exchange medium. Since the heat exchange medium adopts phase change material, the heat exchange medium is solid at room temperature. When the temperature of the second heat conduction part 23 is higher than the phase change critical temperature of the heat exchange medium, the heat exchange medium will melt. In this process, the heat exchange medium can absorb a large amount of heat, and the temperature of the heat exchange medium melt will be stable at the phase change critical temperature for a period of time, so as to realize the collection and storage of waste heat and prevent the heat from being quickly dissipated to the environment.

[0047] When the heat exchange device 20 stops or suspends work, the heat exchange medium will continue to release heat slowly into the environment. After the heat exchange medium continues to cool and release heat, it will solidify into a solid when the temperature is lower than the critical temperature of phase change, and stabilize at the critical temperature of phase change for a long period of time, until the heat exchange medium is completely solidified, and gradually cools to the ambient temperature (room temperature). In this process, the heat dissipation temperature of the phototherapy equipment will not be higher than the critical temperature of phase change of the heat exchange medium, and will not cause a sudden rise in the ambient temperature. The heat generated during the operation of the phototherapy equipment can be released slowly, thereby achieving environmental friendliness of the equipment. In addition, it can avoid setting a large number of heat dissipation holes on the base for passive heat dissipation, which can improve the waterproof level of the phototherapy equipment and greatly reduce the difficulty of cleaning and maintenance of the phototherapy equipment.

[0048] The technical solution of the present invention adopts a heat exchange device 20 having a heat exchange part, a refrigerator and a first chamber 216, uses the heat exchange part to absorb the heat emitted by the phototherapy device 30, and connects the first heat exchange end to the heat exchange part by thermal conduction, and fills the first chamber 216 with a heat exchange medium, so that the heat exchange medium is connected to the second heat exchange end by thermal conduction. In this way, when the refrigerator is working, the heat emitted by the phototherapy device 30 can be absorbed by the first heat exchange end and the heat exchange part. The heat released by the second heat exchange end can be conducted to the heat exchange medium. Since the heat exchange medium adopts a phase change material, a large amount of heat can be absorbed during the process of the heat exchange medium being heated and melted, and the temperature of the heat exchange medium melt will be stable at the critical temperature of the phase change for a period of time, so as to realize heat collection and storage, and avoid the rapid dissipation of heat to the environment. When the heat exchange device 20 stops or suspends work, the heat exchange medium will continue to slowly release heat to the environment until the heat exchange medium gradually cools to the ambient temperature. During this process, the heat dissipation temperature of the phototherapy equipment will not be higher than the critical phase change temperature of the heat exchange medium, and will not cause a sudden increase in the ambient temperature. The heat generated during the operation of the phototherapy equipment can be released slowly, thereby reducing the impact on the ambient temperature and improving the user experience.

[0049] Moreover, it is possible to avoid providing a large number of heat dissipation holes on the device body 10 for passive heat dissipation, thereby improving the waterproof level of the phototherapy device and greatly reducing the difficulty of cleaning and maintaining the phototherapy device.

[0050] In some embodiments, the device body 10 includes a support base 12 and a cover plate 13 covering the support base 12, the cover plate 13 has a light-transmitting area 11, and the phototherapy device further includes a temperature sensor, which is disposed on the cover plate 13 and is used to detect the temperature of the cover plate 13. That is, the temperature of the cover plate 13 can be detected in real time by the temperature sensor, and then the working state of the heat exchange device 20 can be adjusted according to the real-time temperature detected by the temperature sensor to ensure that the cover plate 13 is within a suitable temperature range, thereby improving the user experience.

[0051] Optionally, the heat exchange medium is paraffin, the critical temperature of paraffin phase change can reach between 30°C and 40°C, the latent heat range of the phase change process is 190 to 245 kJ / kg, the chemical properties are stable, the price is low, and both cost and use effect can be taken into account.

[0052] In some embodiments, the heat exchange part has a second chamber 213, a heat exchange channel 217 connected to the second chamber 213, and a first heat conducting part 22 at least partially located in the second chamber 213, the heat exchange channel 217 is used to absorb the heat emitted by the phototherapy device 30, and the first heat conducting part 22 is connected to the first heat exchange end by thermal conduction. Specifically, the second chamber 213 has a liquid return port 214 and a liquid outlet 215, and there is a cooling liquid in the second chamber 213, the cooling liquid is in contact with the first heat conducting part 22, and the first heat conducting part 22 is located between the liquid return port 214 and the liquid outlet 215. In this way, after the cooling liquid passing through the heat exchange channel 217 flows into the second chamber 213 from the return port, it can exchange heat with the first heat conducting part 22 during the process of flowing from the liquid return port 214 to the liquid outlet 215, so that the temperature of the cooling liquid flowing to the liquid outlet 215 is reduced, and cyclic heat exchange is achieved. Such a configuration allows the coolant to absorb heat and then exchange heat with the refrigerator in a centralized manner, thereby improving the heat exchange efficiency and thus improving the heat storage efficiency of the heat exchange medium. The coolant can be driven to circulate between the heat exchange channel 217 and the second chamber 213 by a water pump 26. In addition, in other embodiments, the first heat conducting part 22 is a metal heat conducting part and is in contact with the phototherapy device 30 to achieve heat conduction.

[0053] Optionally, the heat exchange device 20 includes a water pump 26, which is connected between the liquid outlet 215 and the heat exchange channel 217. This can prevent the water pump 26 from heating up, which is beneficial to extending the service life. Of course, in other embodiments, the water pump 26 can also be arranged between the liquid return port 214 and the heat exchange channel 217.

[0054] In some embodiments, the heat exchange part has a plurality of heat exchange channels 217 in parallel, and each heat exchange channel 217 is connected to the second chamber 213. Specifically, the heat exchange device 20 includes a liquid supply pipe 281 and a liquid return pipe 282, and one end of the plurality of heat exchange channels 217 is connected to the second chamber 213 through the liquid supply pipe 281 (a liquid supply pipe 281 can be shared, or a liquid supply pipe 281 can be provided for each heat exchange channel 217), and the other end of the plurality of heat exchange channels 217 is connected to the second chamber 213 through the liquid return pipe 282 (a liquid return pipe 282 can be shared, or a liquid return pipe 282 can be provided for each heat exchange channel 217). In this way, the length of a single heat exchange channel 217 can be shortened, and at the same time, the temperature of the coolant initially entering the plurality of heat exchange channels 217 is basically the same, which can improve the heat exchange efficiency and the heat exchange uniformity. Of course, in other embodiments, only one heat exchange channel 217 can be provided.

[0055] In some embodiments, the device body 10 includes a support base 12 and a cover plate 13 covering the support base 12, the cover plate 13 has a light-transmitting area 11, and the heat exchange channel 217 is located in the cover plate 13 and is arranged corresponding to the light-transmitting area 11. That is, after the heat generated by the phototherapy device 30 is transferred to the cover plate 13, the cooling liquid flowing through the heat exchange channel 217 absorbs the heat transferred from the phototherapy device 30 to the cover plate 13, thereby reducing the heat transferred to the user's body, and when the user lies on the cover plate 13, the user's body can be cooled by the cover plate 13, which greatly improves the user's comfort.

[0056] The cover plate 13 may be set as a hollow structure, in which the hollow area is used as the heat exchange channel 217; or, the heat exchange channel 217 may be formed by a metal pipe, and then the metal pipe may be installed inside the cover plate 13 or on the side of the cover plate 13 facing the support seat 12. In some embodiments, a plurality of heat exchange channels 217 are provided in the cover plate 13. For the embodiment in which the cover plate 13 is set as a hollow structure, in which the hollow area is used as the heat exchange channel 217, the shape of the hollow area may be generally a relatively regular flat space, the first interface 131 is set at the center of the flat space, and the two second interfaces 132 are distributed on both sides of the flat space in the left-right direction, then the left half and the right half of the flat space each constitute a heat exchange channel 217. Alternatively, the cover plate 13 is bent, so the flat space formed is also bent, the first interface 131 is set at the lowest point of the flat space, and the two second interfaces 132 are distributed on both sides of the flat space along the left and right directions. The space from the lowest point of the flat space to the left side is a heat exchange channel 217, and the space from the lowest point of the flat space to the right side constitutes another heat exchange channel 217.

[0057] In addition, in other embodiments, the heat exchange channel 217 is a metal pipe (such as a copper pipe) and passes through the phototherapy device 30 to absorb the heat generated by the phototherapy device 30.

[0058] In some embodiments, the light-transmitting area 11 has a first support portion 111, a second support portion 112 and a third support portion 113, the second support portion 112 is located between the first support portion 111 and the third support portion 113, and is used to support the user's buttocks, the first support portion is used to support the user's back, and the third support portion 113 is used to support the user's legs. The second support portion 112 is provided with a first interface 131, and a second interface 132 is respectively provided at one end of the first support portion 111 and the third support portion 113 that are away from each other, and a heat exchange channel 217 is provided between the first interface 131 and any second interface 132. That is, when the user lies in the light-transmitting area 11, the back is located at the first support portion 111, the buttocks are located at the second support portion 112, and the legs are located at the third support portion 113, the first support portion 111 and the third support portion 113 are both provided with a heat exchange channel 217, and the heat exchange channel 217 extends to the second support portion 112 to communicate with the first interface 131. That is, the first interface 131 can be used to connect multiple heat exchange channels 217, which can reduce the number of interfaces and pipelines and simplify the structure of the phototherapy equipment.

[0059] Optionally, the liquid supply pipe 281 is connected to the first interface 131, and the liquid return pipe 282 is connected to the second interface 132. That is, after the low-temperature coolant enters the cover plate 13 from the first interface 131, it is diverted to each heat exchange channel 217. Since the heat is concentrated in the middle area of ​​the cover plate 13 (light-transmitting area 11) corresponding to the phototherapy device 30, the heat dissipation efficiency is lower than that of the edge part. By connecting the liquid supply pipe 281 to the first interface 131, the middle area of ​​the cover plate 13 (light-transmitting area 11) can be dissipated first, which can improve the heat exchange effect of the middle part of the phototherapy device and improve the user's comfort. Of course, in other embodiments, the second interface 132 can also be connected to the liquid supply pipe 281, and the first interface 131 can be connected to the liquid return pipe 282.

[0060] In some embodiments, the first heat conducting part 22 includes a first heat conducting plate 221 and a plurality of first heat exchange fins 222 located on the first heat conducting plate 221, the first heat conducting plate 221 is thermally connected to the first heat exchange end, and the plurality of first heat exchange fins 222 are all located in the second chamber 213. In this way, the contact area between the coolant and the first heat conducting part 22 can be increased, thereby improving the heat exchange effect.

[0061] In some embodiments, the heat exchange device 20 further has a second heat conducting part 23, the second heat conducting part 23 includes a second heat conducting plate 231 and a plurality of second heat exchange fins 232 located on the second heat conducting plate 231, the second heat conducting plate 231 is thermally connected to the second heat exchange end, and the plurality of second heat exchange fins 232 are all located in the first chamber 216. In this way, the contact area between the heat exchange medium and the second heat conducting part 23 can be increased, thereby improving the heat exchange effect.

[0062] In some embodiments, the refrigerator includes one or more semiconductor refrigeration elements 24, which have a first heat exchange end and a second heat exchange end facing away from the first heat exchange end. Such a configuration can make the refrigerator smaller in size, which is beneficial to reducing the size of the heat exchange device 20, and can also reduce noise and improve user comfort.

[0063] In addition, when using a semiconductor refrigeration element 24, the input current of the semiconductor refrigeration element 24 can be switched through the control circuit (i.e., the positive and negative poles are swapped), so that the first heat exchange end and the second heat exchange end of the semiconductor refrigeration element 24 are flipped, that is, the first heat exchange end releases heat and the second heat exchange end absorbs heat, so that the semiconductor refrigeration element 24 can heat the coolant in the heat exchange channel 217, so that the cover plate 13 is heated to a suitable temperature, which can facilitate the use of phototherapy equipment in a low-temperature environment.

[0064] In some embodiments, the heat exchange device 20 further comprises a housing 21, wherein the housing 21 comprises a partition 211, wherein the partition 211 separates the inner cavity of the housing 21 into a second chamber 213 and a first chamber 216, wherein the partition 211 comprises a mounting through hole 212, wherein the semiconductor refrigeration element 24 is disposed in the mounting through hole 212, wherein the first heat conducting portion 22 covers the mounting through hole 212, wherein the first heat conducting portion 22 covers the mounting through hole 212, wherein the first chamber 216 comprises a second heat conducting portion 23, wherein the second heat conducting portion 23 covers the through hole and is connected to the second heat exchange end by heat conduction. In this way, the compactness of the structure of the heat exchange device 20 can be improved, and the assembly of the heat exchange device 20 can also be facilitated. The housing 21 can be made of a heat insulating material, or a heat insulating structure can be disposed between the second chamber 213 and the first chamber 216 to reduce the heat transfer between the second chamber 213 and the first chamber 216.

[0065] Optionally, a heat insulating member is provided between the first heat conducting portion 22 and the partition 211 and between the second heat conducting portion 23 and the partition 211 to reduce heat transfer between the second chamber 213 and the first chamber 216 .

[0066] Of course, in other embodiments, two independent shells may be used, one of which has a second chamber 213 and the other has a first chamber 216. During installation, the two shells and the refrigerator are assembled (the shell with the second heat exchange chamber can be made of metal material to facilitate heat dissipation, and an insulation structure is provided between the two shells).

[0067] In some embodiments, the box body 21 has a first opening, which is opposite to the partition 211 and connected to the first chamber 216. The heat exchange device 20 includes a third heat conducting plate 271 and a radiator 272. The third heat conducting plate 271 covers the first opening, and the radiator 272 is arranged on the side of the third heat conducting plate 271 away from the partition 211, so as to facilitate heat dissipation of the heat exchange medium.

[0068] In some embodiments, the phototherapy device 30 includes multiple circuit boards 31 and multiple heat sinks 33, each circuit board 31 is provided with multiple light-emitting elements 32, the light-emitting elements 32 are arranged toward the light-transmitting portion, and each circuit board 31 is provided with a heat sink 33 on the side away from the light-emitting elements 32. That is, multiple circuit boards 31 are arranged on the inner side of the cover plate 13, so that the phototherapy area is larger, and the heat sink 33 can improve the heat dissipation effect of the circuit board 31.

[0069] The present invention further proposes an intelligent temperature control method for phototherapy equipment, which uses the phototherapy equipment as described above. In this embodiment, the intelligent temperature control method for phototherapy equipment includes:

[0070] The real-time temperature at the light-transmitting area 11 on the device body 10 and the preset temperature range formed by the minimum preset temperature and the maximum preset temperature are obtained; specifically, the real-time temperature can be detected in real time by a temperature sensor, and the minimum preset temperature and the maximum preset temperature can be set according to actual needs, for example, the minimum preset temperature can be 19°C, 20°C, 21°C or 22°C, etc., and the maximum preset temperature can be 28°C, 29°C, 30°C or 31°C, etc. The minimum preset temperature and the maximum preset temperature can be factory preset values, or user-defined preset values, for example, a control panel is provided on the phototherapy device, and customized settings are performed through the control panel.

[0071] The working state of the heat exchange device 20 is adjusted according to the real-time temperature and the preset temperature range to adjust the temperature of the light-transmitting area 11 .

[0072] The technical solution of the present invention detects the real-time temperature of the light-transmitting area 11 on the device body 10, and adjusts the working state of the heat exchange device 20 according to the detected real-time temperature and the preset temperature range, thereby adjusting the temperature of the light-transmitting area 11. For example, the heat transmitted to the light-transmitting area 11 during the working process of the phototherapy device 30 can be reduced, and the cover plate 13 can be used to cool the user's body to avoid the situation where the temperature of the light-transmitting area 11 is too high or too low, causing discomfort to the user, thereby improving the user's comfort.

[0073] In some embodiments, adjusting the working state of the heat exchange device 20 according to the real-time temperature and the preset temperature range to adjust the temperature of the light-transmitting area 11 includes:

[0074] If the real-time temperature is greater than the highest preset temperature, and the difference between the real-time temperature and the highest preset temperature (the difference is a positive value) is greater than the first threshold, the heat exchange device 20 is controlled to enter the cooling mode to cool the light-transmitting area 11; by increasing the difference between the real-time temperature and the highest preset temperature for judgment, it is possible to avoid the situation where the heat exchange device 20 is frequently opened and closed when the real-time temperature is near the highest preset temperature, thereby reducing energy consumption and loss of the phototherapy device. Among them, the first threshold is a positive value, which can be specifically set to +3°C, +5°C or +6°C, etc.

[0075] If the real-time temperature is lower than the lowest preset temperature, and the difference between the real-time temperature and the lowest preset temperature (the difference is a negative value) is lower than the second threshold, the heat exchange device 20 is controlled to enter the heating mode to heat the light-transmitting area 11. In this way, the difference between the real-time temperature and the lowest preset temperature is increased for judgment, which can avoid the situation where the heat exchange device 20 is frequently opened and closed when the real-time temperature is near the lowest preset temperature, and can reduce energy consumption and loss of phototherapy equipment. Among them, the second threshold is a negative value, which can be set to -3°C, -5°C or -6°C, etc.

[0076] In some embodiments, if the real-time temperature is within a preset temperature range, the heat exchange device 20 is turned off to enter a silent mode. That is, when the real-time temperature is within a preset temperature range, it means that the light-transmitting area 11 is at a relatively comfortable temperature. At this time, by turning off the heat exchange device 20, noise can be reduced and energy can be saved. Specifically, when the real-time temperature is lower than the highest preset temperature and higher than the lowest preset temperature, the heat exchange device 20 is turned off, and the water pump 26 and the semiconductor refrigeration element 24 stop working.

[0077] In some embodiments, when the heat exchange device 20 enters the cooling mode, the heat exchange device 20 is controlled to be turned on intermittently (i.e., the heat exchange device 20 is controlled to be turned off and started multiple times). Specifically, there are two working modes in the cooling mode, and the heat exchange device 20 switches between the two working modes:

[0078] In the first working mode, the water pump 26 is turned on and the cover plate 13 is cooled by circulating water. When the water passes through the second chamber 213, the heat is transferred to the phase change material.

[0079] In this working mode, the semiconductor refrigeration element 24 is turned on intermittently. When the semiconductor refrigeration element 24 is turned on, the heat of the circulating water can be quickly transferred to the phase change material, and the phase change speed of the phase change material becomes faster, so that the circulating water can be quickly cooled down, which is conducive to quickly maintaining the temperature of the cover plate 13 to a suitable temperature and improving the user experience. When the semiconductor refrigeration element 24 is turned off, it can greatly save energy and reduce the cost of use.

[0080] In the second working mode, the water pump 26 is turned off. Since the water pump 26 is turned off, the circulating water no longer circulates, so the semiconductor refrigeration element 24 is also turned off, so that the whole machine has low noise and low power consumption.

[0081] Optionally, when the real-time temperature is greater than the first preset temperature, the heat exchange device 20 switches to the first working mode, thereby controlling the cover plate 13 to cool down.

[0082] When the real-time temperature is less than or equal to the first preset temperature, the heat exchange device 20 switches to the second working mode. The first preset temperature can be the sum of the maximum preset temperature and half of the first threshold value or other values. For example, when the maximum preset temperature is 30° and the first threshold value is 4°C, the first preset temperature is 32°C, that is, in the first working mode, when the real-time temperature is less than or equal to 32°C, the heat exchange device 20 switches to the second working mode.

[0083] In the cooling mode, by controlling the intermittent operation of the heat exchange device 20, a phase change material such as paraffin can be formed to undergo multiple melting and condensation processes, thereby stabilizing the temperature of the released heat within a small fluctuation range above and below the melting point of the paraffin, thereby achieving a gentle release of heat. In this process, the phase change material is repeatedly melted by absorbing heat and solidified by dissipating heat, so that the heat exchange medium cannot be completely melted throughout the entire process, and the heat dissipation temperature of the phototherapy device is limited to below the critical phase change temperature of the heat exchange medium, thereby ensuring that the temperature-limited heat dissipation mechanism continues to function, further reducing the impact on the ambient temperature and improving the user experience.

[0084] As the phototherapy device is continuously used, the light-emitting element 32 will generate a large amount of light and heat, which will be exchanged and stored in a phase change material such as paraffin melt in the form of phase change heat absorption. Due to the characteristic that the temperature of paraffin is constant at the melting point during the phase change heat absorption process, the temperature of the device body is limited to below the melting point of paraffin. In order to achieve the reliability of temperature-limited heat dissipation in this process, in addition to controlling the amount of paraffin, the present application also controls the frequency of intermittent operation of the semiconductor refrigeration component 24. Therefore, during the cooling cycle of the equipment, the semiconductor refrigeration component 24 is shut down and started many times, causing the paraffin to repeatedly absorb heat and melt and dissipate heat to solidify, so that the paraffin cannot be completely melted throughout the whole process, and the heat dissipation temperature is limited to below the melting point of paraffin, thereby ensuring that the temperature-limited heat dissipation mechanism continues to work.

[0085] In some embodiments, when the heat exchange device 20 enters the heating mode, the input current of the semiconductor refrigeration element 24 can be switched by the control circuit (i.e., the positive and negative poles are swapped), so that the first heat exchange end and the second heat exchange end of the semiconductor refrigeration element 24 are reversed, that is, the first heat exchange end releases heat and the second heat exchange end absorbs heat. During the period of turning on the semiconductor refrigeration element 24, the water pump 26 is in the on state, and the cover plate 13 can be heated at this time.

[0086] 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 changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A phototherapy device, characterized in that: include: The device body has a light-transmitting area and a mounting cavity located below the light-transmitting area; A phototherapy device is disposed in the installation cavity and is arranged corresponding to the light-transmitting area; as well as The heat exchange device comprises a heat exchange part, a refrigerator and a first chamber, wherein the heat exchange part is used to absorb the heat emitted by the phototherapy device, the refrigerator has a first heat exchange end and a second heat exchange end opposite to each other, the first heat exchange end is thermally connected to the heat exchange part, the first chamber is filled with a heat exchange medium, the heat exchange medium is a phase change material, and the heat exchange medium is thermally connected to the second heat exchange end.

2. The phototherapy device according to claim 1, characterized in that The heat exchange part has a second chamber, a heat exchange channel connected to the second chamber, and a first heat conductive part at least partially located in the second chamber, the heat exchange channel is used to absorb the heat emitted by the phototherapy device, and the first heat conductive part is thermally connected to the first heat exchange end.

3. The phototherapy device according to claim 2, characterized in that The equipment body comprises a support base and a cover plate covering the support base, the cover plate has the light-transmitting area, the heat exchange channel is located in the cover plate and is arranged corresponding to the light-transmitting area.

4. The phototherapy device according to claim 2, characterized in that The first heat conducting part comprises a first heat conducting plate and a plurality of first heat exchange fins located on the first heat conducting plate, the first heat conducting plate is thermally connected to the first heat exchange end, and the plurality of first heat exchange fins are all located in the second chamber; and / or, The heat exchange device also has a second heat conduction part, which includes a second heat conduction plate and a plurality of second heat exchange fins located on the second heat conduction plate. The second heat conduction plate is thermally connected to the second heat exchange end, and the plurality of second heat exchange fins are all located in the first chamber.

5. The phototherapy device according to claim 2, characterized in that The refrigerator includes one or more semiconductor refrigeration elements, and the semiconductor refrigeration element has the first heat exchange end and the second heat exchange end facing away from the first heat exchange end.

6. The phototherapy device according to claim 5, characterized in that The heat exchange device also has a box body, and a partition is provided in the box body. The partition divides the inner cavity of the box body to form the second chamber and the first chamber. The partition is provided with a mounting through hole, and the semiconductor refrigeration component is provided in the mounting through hole. The first heat conductive part covers the mounting through hole. The first chamber is provided with a second heat conductive part, and the second heat conductive part covers the through hole and is thermally connected to the second heat exchange end.

7. The phototherapy device according to claim 6, characterized in that The box body has a first opening, which is opposite to the partition and communicated with the first chamber. The heat exchange device includes a third heat conducting plate and a radiator. The third heat conducting plate covers the first opening, and the radiator is arranged on a side of the third heat conducting plate away from the partition.

8. A method for intelligent temperature control of phototherapy equipment, characterized in that: The phototherapy device intelligent temperature control method adopts the phototherapy device according to any one of claims 1 to 7, and the phototherapy device intelligent temperature control method comprises: Acquire the real-time temperature at the light-transmitting area on the device body, and the preset temperature range formed by the lowest preset temperature and the highest preset temperature; The working state of the heat exchange device is adjusted according to the real-time temperature and the preset temperature range to adjust the temperature of the light-transmitting area.

9. The intelligent temperature control method for phototherapy equipment according to claim 8, characterized in that: Adjusting the working state of the heat exchange device according to the real-time temperature and the preset temperature range to adjust the temperature of the light-transmitting area includes: If the real-time temperature is greater than the maximum preset temperature, and the difference between the real-time temperature and the maximum preset temperature is greater than a first threshold, the heat exchange device is controlled to enter a cooling mode to cool the light-transmitting area; If the real-time temperature is lower than the lowest preset temperature, and the difference between the real-time temperature and the lowest preset temperature is lower than a second threshold, the heat exchange device is controlled to enter a heating mode to heat the light-transmitting area.

10. The intelligent temperature control method for phototherapy equipment according to claim 9, characterized in that: The control method further comprises: If the real-time temperature is within the preset temperature range, the heat exchange device is turned off to enter a silent mode; When the heat exchange device enters the cooling mode, the heat exchange device is controlled to be turned on intermittently.

Images