Wearable temperature control device

Abstract

The utility model discloses a wearable temperature control device, comprising: host shell, be used to install temperature regulating module, cold air tank, its setting at host shell one side, inside is equipped with even wind spare part and is located even wind spare part air outlet side's distributed air outlet, wear spare part, with host shell is connected, makes host shell can wear on human body. The utility model structure is simple, and the comfort is good.

Description

Technical Field

[0001] This utility model relates to the technical field of refrigeration equipment, and in particular to a wearable temperature control device. Background Technology

[0002] With global warming, summers are extremely hot in most regions. To regulate temperature, many handheld or wearable fans have appeared on the market. However, when the ambient temperature is high, the cooling effect of these fans is very limited, resulting in a poor user experience.

[0003] To address this issue, wearable cooling devices have emerged in the existing technology. These devices primarily rely on semiconductor cooling or phase change materials, and typically the cold end is in direct contact with the human body, or a fan blows the cold air from the cold end directly onto the body, resulting in poor comfort.

[0004] Therefore, how to provide a more comfortable wearable temperature control device is a technical problem to be solved. Utility Model Content

[0005] In order to solve the technical problem of poor comfort in existing wearable temperature control devices, this utility model proposes a wearable temperature control device.

[0006] The wearable temperature control device of this utility model includes:

[0007] Main unit housing, used to install the temperature control module;

[0008] The cold air box is located on one side of the main unit housing and contains an air distribution component and a distributed air outlet located on the air outlet side of the air distribution component.

[0009] A wearable device that connects to the main unit housing, allowing the main unit housing to be worn on the human body.

[0010] Furthermore, the end of the cold air box facing the human body is covered with a movable cover, the inner side of which is connected to the cold air box via a supporting elastic element, and the distributed air outlet is located on the movable cover.

[0011] Furthermore, the supporting elastic element is a spring.

[0012] Furthermore, the movable cover has flexible sealing baffles around its perimeter, and the cold air box has a groove that allows the flexible sealing baffles to move along the extension and retraction direction of the spring, with the edge of the flexible sealing baffles overlapping the bottom of the groove.

[0013] Furthermore, the air distribution component is ventilation cotton or at least one air distribution plate.

[0014] Furthermore, the temperature control module includes: a micro-refrigeration unit and a battery assembly that provides power to the components of the micro-refrigeration unit.

[0015] Furthermore, the battery assembly includes a battery pack and a solar panel disposed on the surface of the main housing and electrically connected to the battery pack.

[0016] Furthermore, the temperature control module also includes a heating belt disposed between the evaporator and the cold air box of the micro refrigeration unit.

[0017] Furthermore, the control module of the micro-refrigeration unit performs temperature control based on the signals from the detection components, which include at least one of the following: an air outlet sensor installed in the cold air box, a physiological sensor installed on the wearable device and located at the human heart for detecting the human heart rate, an environmental sensor installed outside the main unit housing, and an inertial sensor installed at any one or more locations on the human limbs.

[0018] Furthermore, the wearable component is clothing or a strap.

[0019] This invention features a cooling air box positioned between the main unit casing and the user, with an air distribution component inside to enhance user comfort. Furthermore, the end of the cooling air box facing the user has a movable cover, preventing direct contact between the user and a fixed back panel, further improving comfort. In addition, this invention incorporates various sensors to calculate the user's perceived temperature, enabling more accurate control of the temperature adjustment module. Attached Figure Description

[0020] The present invention will now be described in detail with reference to the embodiments and accompanying drawings, wherein:

[0021] Figure 1 This is a side view of an embodiment of the present invention.

[0022] Figure 2 This is a side perspective view of the main unit casing according to an embodiment of this utility model.

[0023] Figure 3 This is a schematic diagram of the back of the lining according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of a wearable embodiment of the present invention.

[0025] Figure 5 This is a flowchart of calculating perceived temperature according to an embodiment of the present invention.

[0026] Figure 6 This is a flowchart illustrating the calculation of activity intensity according to an embodiment of the present invention.

[0027] Figure 7 This is a flowchart illustrating the control of air outlet speed and temperature according to an embodiment of this utility model.

[0028] Figure 8 This is a dehumidification and heating process flow diagram of an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Main unit casing; 2. Cooling box; 3. Wearable components.

[0031] 11. Miniature refrigeration unit; 12. Solar panel; 13. Air outlet sensor; 14. Environmental sensor; 15. Battery pack; 16. Electric heating belt; 17. Inertial sensor; 18. Physiological sensor.

[0032] 21. Movable cover; 22. Distributed air outlet; 23. Spring.

[0033] 111. Miniature DC compressor; 112. Condenser; 113. Throttling element; 114. Evaporator; 115. Refrigeration air outlet; 116. Air inlet; 117. Condenser air outlet. Detailed Implementation

[0034] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0035] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0036] The wearable temperature control device provided by this utility model includes a main unit housing, a cold air box, and wearable components.

[0037] The main unit housing is used to install the temperature control module.

[0038] The cold air box is located on one side of the main unit casing, and contains an air distribution component and distributed air outlets located on the air outlet side of the air distribution component.

[0039] The wearable device connects to the main unit shell, allowing the main unit shell to be worn on the human body.

[0040] This wearable temperature control device incorporates a cooling airbox, preventing the air regulated by the temperature control module from blowing directly onto the body. Instead, the air is evenly distributed through a wind-shielding component before being delivered to various parts of the body via distributed air outlets. Compared to existing technologies where the main unit casing has directly exposed air outlets that blow air onto the body, this device offers significantly greater comfort.

[0041] In one specific embodiment, a movable cover is provided on the end of the cold air box facing the human body. The inner side of the movable cover is connected to the cold air box through a supporting elastic element, and the distributed air outlets are located on the movable cover.

[0042] The housing of existing wearable temperature control devices is basically a fixed shell with an unchangeable shape. The side closest to the human body is a fixed plate, which is not very comfortable when the human body is in contact with it. However, the wearable temperature control device of this invention does not have a fixed plate on the side closest to the human body. Instead, it uses a movable end cap, which means that it can be adjusted according to the tilt of the human body, making it relatively more comfortable.

[0043] In a further embodiment, the movable cover can also be composed of multiple cover panels spliced ​​together, with the cover panels connected to each other by fabric, soft plastic or silicone, so that the movable cover can adapt its shape according to the specific wearing position, further improving the wearing comfort.

[0044] Based on the above embodiments, the supporting elastic element of this utility model can be a spring, which has a long service life and good elasticity. In other embodiments, other types of supporting elastic elements such as bellows can also be used.

[0045] In a further embodiment, the movable cover has flexible sealing baffles around its perimeter, and the cold air box has grooves that allow the flexible sealing baffles to move along the extension and retraction direction of the support spring. The edges of the flexible sealing baffles overlap with the bottom of the grooves to achieve better sealing of the cold air box.

[0046] Based on the above embodiments, the air distribution component set in the cold air box can be ventilated cotton or at least one air distribution plate. In comparison, ventilated cotton has a better air distribution effect. Since the wearable temperature control device is close to the human body, if cold air blows directly on the body quickly, it will cause the local area near the air outlet to become too cold, thus affecting comfort. Ventilated cotton can reduce the wind speed and has a better air distribution effect, avoiding cold air blowing directly on the human body quickly and improving the comfort of use.

[0047] Based on the above embodiments, the temperature control module of this utility model includes a miniature refrigeration unit and a battery assembly, wherein the battery assembly provides power to the components of the miniature refrigeration unit. The battery assembly can be an external battery assembly or a battery assembly installed with the main unit housing. The miniature refrigeration unit typically uses a miniature DC compressor, a miniature fan, etc., which are small in size, lightweight, and not too heavy, making them relatively comfortable to wear.

[0048] In one embodiment, the battery assembly of this invention includes a battery pack and a solar panel disposed on the surface of the main housing and electrically connected to the battery pack. Since wearable temperature control devices are typically used in summer when sunlight is abundant, using solar energy to provide power to the fan of a micro-unit effectively utilizes solar energy and achieves energy conservation and emission reduction.

[0049] When the humidity is high, the wind blowing out can also cause discomfort to the human body. Therefore, in one embodiment, the temperature control module of this utility model also includes a heating belt disposed between the evaporator and the cold air box of the micro refrigeration unit.

[0050] When the humidity of the air in the environment is high, the temperature of the air exchanging heat at the evaporator is first reduced to below the dew point temperature by a miniature refrigeration unit, and then this part of the air is heated by a heating element. This way, dry and cool air can be blown out, improving the user's comfort and also accelerating the drying of clothes.

[0051] The control module of the miniature refrigeration unit controls the temperature based on the signals from the detection components, which include at least one of the following: an air outlet sensor installed inside the cold air box, a physiological sensor installed on the wearable device and located at the human heart for detecting the human heart rate, an environmental sensor installed outside the main unit housing, and an inertial sensor installed at any one or more locations on the human limbs.

[0052] The aforementioned air outlet sensor and environmental sensor can detect ambient temperature and air outlet temperature, thereby enabling more appropriate control of the micro-refrigeration unit. The aforementioned physiological sensor and inertial sensor can detect human activity, allowing those skilled in the art to perform more precise temperature control based on this activity.

[0053] In one embodiment, the wearable component of this invention is clothing or a strap. For example, the wearable component can be a belt, a single-shoulder strap, a double-shoulder strap, etc., which will not affect the user's dressing style and is convenient to wear. It can also be a vest, short-sleeved shirt, long-sleeved shirt, etc., which allows the distributed air outlets to blow air directly into the inside of the clothing and then out from the cuffs, hem, collar, etc., resulting in better heat dissipation.

[0054] The present invention will now be described in further detail and expanded with reference to the accompanying drawings.

[0055] like Figure 1 , Figure 2 As shown in the side view of this utility model, the wearable temperature control device of this utility model includes a main unit housing 1, a cold air box 2, and a wearable component 3 (not shown in the figure). The wearable component 3 is located in... Figure 1 The right side of the intercooler air box 2.

[0056] The main unit housing 1 is equipped with a temperature control module (i.e., a micro-cooling unit 11 and a battery assembly), which makes the main unit housing 1 portable. The main unit housing 1 can be worn on the waist or back through the wearable device 3.

[0057] The miniature refrigeration unit 11 employs a vapor compression refrigeration cycle system consisting of a miniature DC compressor 111, a condenser 112, an evaporator 114, a throttling element 113, and an environmentally friendly refrigerant (such as R134a). Independent cooling fans are located on the condenser 112 and evaporator 114 sides to ensure efficient heat exchange with the external environment. Compressor refrigeration technology is far more energy-efficient than semiconductor refrigeration, providing powerful and stable cooling capacity to cope with extreme high-temperature environments.

[0058] In this embodiment, the battery pack 15 is a high-energy-density lithium polymer battery pack, which powers the fan and control module of the micro-refrigeration unit 11. The battery pack 15 can be combined with the main unit housing 1 or worn separately. If the outdoor time is long, a solar panel 12 can be used instead of the lithium battery pack.

[0059] Solar panels 12 are installed on the top surface of the cold air box 2 and on the side away from the cold air box 2. Ambient air enters through the air inlet 116 at the bottom of the main unit casing 1, etc. The cooled air (cooled air at the evaporator 114) after heat exchange is blown out from the cooling air outlet 115, passes through the cold air box 2, and is then blown out from the distributed air outlet 22. The distributed air outlet 22 can be set at any one or more locations in key heat dissipation areas such as the neck, armpits, and back of the human body, resulting in higher cooling efficiency. After heat dissipation from the body surface, the air is discharged from the cuffs of the clothing-like wearable piece 3. The cooled hot air (hot air at the condenser 112) is discharged from the condenser air outlet 117 on the side of the main unit casing 1 away from the cold air box 2.

[0060] The cold air box 2 is equipped with an air outlet sensor 13 to detect the air outlet temperature. The end of the cold air box 2 near the wearable device 3 is covered with a movable end cover, which is connected to the cold air box 2 by a spring 23.

[0061] like Figure 3As shown, in one specific embodiment, the wearable component 3 of this utility model is specifically in the form of a short-sleeved shirt. When the inner lining of the short-sleeved shirt is turned outwards, so that the inner lining of the short-sleeved shirt is exposed, the distributed air outlets 22 of the cold air box 2 can be seen on the back of the short-sleeved shirt.

[0062] Figure 4 A schematic diagram showing the effect of wearing the present invention is provided. It can be seen that an inertial sensor 17 is provided on the side of the wearable component 3. In addition to the inertial sensor 17, the wearable temperature control device also includes an air outlet sensor 13, an environmental sensor 14, and a physiological sensor 18.

[0063] The physiological sensor 18 is located inside the lining of the clothing-like wearable device 3 and can detect the user's heart rate.

[0064] An environmental sensor 14 is mounted on the main housing 1 and is used to collect one or more of the following: ambient temperature, humidity, solar radiation intensity, and ambient wind speed. An inertial measurement unit can detect linear acceleration and angular velocity in three axes (X, Y, Z) to estimate the intensity of user activity. An exhaust air sensor 13 can measure the temperature and humidity of the exhaust air after cooling by the refrigeration module.

[0065] like Figure 5 As shown, when calculating the perceived temperature of the human body, the environmental sensor can detect the air temperature (Tair), humidity (P), solar radiation intensity (I), and ambient wind speed (V).

[0066] The wet-bulb temperature is calculated using the formula Twet = Tair - (UP) / i, where U is a constant, i is a percentage coefficient, and Twet is the wet-bulb temperature.

[0067] The temperature of the black sphere is calculated using Tsun = Tair + a * I * (b + c * Tair), where a is the emissivity, b and c are constants, and Tsun is the temperature of the black sphere.

[0068] Then you can use the formula Tsun 修 =Tsun-d*V is used to correct the temperature of the black ball, where d is the correction coefficient, and Tsun... 修 This is the corrected temperature of the black ball.

[0069] Then, according to the formula WGBT=e*Twet+f*Tsun 修 +g*Tair calculates the user's perceived temperature, where d is a correction factor. Detecting the user's perceived temperature allows for better control of the micro-refrigeration unit.

[0070] like Figure 6As shown, when calculating the intensity of human activity, inertial sensors collect raw data, such as detecting linear acceleration and angular velocity in three axes (X, Y, Z). The raw data is then preprocessed to remove interference data, such as the effects of gravity, minor vibrations caused by noise, and muscle tremors.

[0071] Then, by obtaining the velocity changes, displacement, and time along the X, Y, and Z axes, the accelerations vx, vy, and vz in each direction can be calculated. Then, the formula S = ... get.

[0072] In further expansion, the air conditioner can be controlled in more detail based on the above data.

[0073] like Figure 7 As shown, users first fill in their own information through the user app to establish a database.

[0074] By collecting extensive data on individuals of different body types, body fat percentages, ages, and genders, the optimal perceived temperature for each ambient temperature range was determined. Before use, users input their body information into the accompanying user app. Based on this information, the app automatically matches the corresponding database and adjusts the temperature to the most suitable level. After the user turns on the device, environmental sensors detect the current ambient temperature (Tair), humidity (P), solar radiation intensity (I), and ambient wind speed (V). Using a thermal index algorithm, the approximate perceived temperature (WGBT) is calculated, and the initial air outlet temperature (T1) and initial wind speed (Q1) are automatically set according to the temperature range.

[0075] During operation, environmental sensors monitor operating conditions in real time to adjust the initial air outlet temperature and airflow. Physiological sensors and an inertial measurement unit monitor the user's heart rate and activity intensity in real time. Since heart rate changes not only with temperature, both activity intensity and heart rate are monitored simultaneously. Upon first use, the user's activity intensity range is determined primarily by real-time heart rate.

[0076] When the user is not exercising, the heart rate is the resting heart rate H1, and the activity intensity is set to level S1.

[0077] When the user's activity intensity is at level S2, the heart rate rises to the first heart rate threshold H2 (H2=H1+x). At this time, the activity intensity is moderate, and x is the first heart rate amplitude.

[0078] When the user's activity intensity is at level S3, the heart rate rises to the second heart rate threshold H3 (H3=H1+x+y). At this time, the activity intensity is high intensity, y is the second heart rate amplitude, and H3>H2>H1.

[0079] When the heart rate H≥H3 and the activity intensity S≥S3 are detected for r seconds, it is judged as a high-intensity state. During high-intensity exercise, the body's heat dissipation system will be more active. Considering health factors, the air outlet temperature cannot be too low in this state, as it will inhibit the body's heat dissipation and easily cause stress to the cardiovascular system and damage and spasm of the muscle function. Therefore, the frequency of the cold air fan is increased to increase the wind speed to Q2 (Q2=Q1+q1) to accelerate the evaporation of sweat and promote heat dissipation. The frequency of the micro DC compressor is reduced to increase the air outlet temperature to T2 (T2=T1+t1) to protect health. q1 is the first wind speed amplitude and t1 is the first temperature amplitude. Because the body cannot be exposed to cold during high-intensity exercise, the pores open during high-intensity heat dissipation, and cold air will cause them to contract, causing the heat dissipation system to be disordered. Therefore, increasing the air outlet temperature and wind speed can accelerate the evaporation of sweat to achieve a cooling effect.

[0080] When the heart rate H2 < H < H3 and the activity intensity S2 < S < S3 is detected for r consecutive seconds, it is judged to be a medium intensity state. Then, the frequency of the cold air fan is increased to increase the wind speed to Q3 (Q3 = Q1 + q2) to promote sweat evaporation and maintain the initial air outlet temperature T1. q2 is the second temperature amplitude, and q2 < q1.

[0081] When the heart rate H1≤H≤H2 and the activity intensity S1≤S≤S2 are detected for r seconds, it is determined to be a resting state. Then the initial wind speed Q1 and the initial air outlet temperature T1 are maintained.

[0082] When the heart rate H < H1 is detected for r consecutive seconds, it is determined to be in a dormant state. Then, the frequency of the cold air fan is reduced to reduce the air outlet speed to Q4 (Q4 = Q1 - q3), and the frequency of the micro DC compressor is reduced to increase the air outlet temperature to T3 (T3 = T1 + t3). q3 is the third temperature amplitude, and t3 is the third temperature amplitude.

[0083] Because humidity affects normal human activities, high humidity can impair body temperature regulation, inhibit sweat evaporation leading to heatstroke, and promote the growth of mold and bacteria. Even if the temperature is not very high, high humidity can cause fatigue and irritability due to persistent stuffiness. Therefore, this device includes a dehumidification function, specifically controlled as follows: Figure 8 As shown. First, the initial outlet air temperature T1 and initial air speed Q1 are automatically set according to the temperature range. Then, based on the principle of current ambient temperature and dew point temperature, the frequency of the micro DC compressor is increased to reduce the outlet air temperature to below the dew point temperature. At this time, the outlet air temperature of the micro refrigeration unit is T4 = T1 - t4, so as to remove water vapor from the ambient air. The fan frequency is increased to make the air speed Q5 (Q5 = Q1 - q5) to increase the evaporation rate. q5 is the fifth temperature amplitude. At the same time, the electric heating is turned on to heat and dehumidify the refrigerated air to return it to the initial outlet air temperature T1 of this operating condition. In this way, dry refrigerated air can be blown out, that is, the outlet air temperature of the cold air box is T1.

[0084] The wearable temperature control device in this embodiment is based on a micro DC compressor refrigeration system, multi-source sensors, and a close-fitting cooling system that enables intelligent control. This system can dynamically sense the user's perceived temperature changes, activity level, and environmental conditions, and precisely adjust the cooling output accordingly. While providing optimal cooling, it maximizes energy efficiency, ensuring user comfort and safety, and can achieve a highly efficient, portable, and intelligent personal cooling system.

[0085] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wearable temperature control device, characterized in that, include: Main unit housing, used to install the temperature control module; The cold air box is located on one side of the main unit housing and contains an air distribution component and a distributed air outlet located on the air outlet side of the air distribution component. A wearable device that connects to the main unit housing, allowing the main unit housing to be worn on the human body.

2. The wearable temperature control device as described in claim 1, characterized in that, The end of the cold air box facing the human body is covered with a movable cover. The inner side of the movable cover is connected to the cold air box through a supporting elastic element. The distributed air outlet is located on the movable cover.

3. The wearable temperature control device as described in claim 2, characterized in that, The supporting elastic element is a spring.

4. The wearable temperature control device as described in claim 3, characterized in that, The movable cover has flexible sealing baffles around its perimeter, and the cold air box has a groove that allows the flexible sealing baffles to move along the extension and retraction direction of the spring. The edge of the flexible sealing baffles coincides with the bottom part of the groove.

5. The wearable temperature control device as described in claim 1, characterized in that, The air distribution component is ventilation cotton or at least one air distribution plate.

6. The wearable temperature control device as described in any one of claims 1 to 5, characterized in that, The temperature control module includes: a micro-refrigeration unit and a battery assembly that provides power to the components of the micro-refrigeration unit.

7. The wearable temperature control device as described in claim 6, characterized in that, The battery assembly includes a battery pack and a solar panel disposed on the surface of the main housing and electrically connected to the battery pack.

8. The wearable temperature control device as described in claim 6, characterized in that, The temperature control module also includes a heating belt disposed between the evaporator and the cold air box of the micro refrigeration unit.

9. The wearable temperature control device as described in claim 6, characterized in that, The control module of the micro-refrigeration unit controls the temperature based on the signals from the detection components. The detection components include at least one of the following: an air outlet sensor installed in the cold air box; a physiological sensor installed on the wearable device and located at the human heart for detecting the human heart rate; an environmental sensor installed outside the main unit housing; and an inertial sensor installed at any one or more locations on the human limbs.

10. The wearable temperature control device according to any one of claims 1 to 5, characterized in that, The wearable item is clothing or a strap.

Images