Control method of wearable air conditioner, wearable air conditioner and storage medium

Abstract

The invention provides a control method of a wearable air conditioner, the wearable air conditioner and a storage medium, according to the method, when the temperature of a cold conduction piece reaches the first temperature, the working power of a semiconductor cooler is reduced to enable the temperature of the cold conduction piece to rise from the first temperature, and when the temperature of the cold conduction piece rises to the second temperature, the working power of the semiconductor cooler is reduced; and increasing the working power of the semiconductor cooler to reduce the temperature of the cold conduction piece from the second temperature. Thus, the temperature of the cold conduction piece is increased from the first temperature to the second temperature and then reduced, the cold receptor on the skin is reactivated, a user can feel cool, and the skin temperature adaptation phenomenon is overcome. And meanwhile, the user can feel cool at the current gear, so that the requirement that the wearable air conditioner runs at a high gear by adjusting the gear of the user is reduced, and the endurance of the wearable air conditioner can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of portable temperature control equipment, in particular to a control method of a wearable air conditioner, a wearable air conditioner and a storage medium. BACKGROUND

[0002] With the development of semiconductor refrigerators (TEC) technology, TEC (thermoelectric refrigeration) technology is applied to the wearable field, and portable and wearable air conditioners such as neck air conditioners are derived. Because of its portability and refrigeration characteristics, it is loved by users.

[0003] However, due to the temperature adaptation phenomenon of human skin, even in the case of constant temperature of the semiconductor refrigerator, the subjective "cool feeling" of the user will gradually weaken, resulting in a decline in experience. The prior art cannot solve this physiological problem. SUMMARY

[0004] To solve the existing technical problems, the present application provides a control method of a wearable air conditioner that can overcome the skin temperature adaptation phenomenon, a wearable air conditioner and a storage medium.

[0005] In a first aspect, a control method of a wearable air conditioner is provided, comprising: collecting a current temperature of a cold guide of the wearable air conditioner; when the current temperature of the cold guide reaches a first temperature, controlling to reduce the working power of the semiconductor refrigerator so that the current temperature of the cold guide rises from the first temperature; when the current temperature of the cold guide rises to a second temperature, controlling to increase the working power of the semiconductor refrigerator so that the current temperature of the cold guide falls from the second temperature; wherein the second temperature is higher than the first temperature.

[0006] In a second aspect, a wearable air conditioner is provided, comprising: a semiconductor refrigerator, a microcontroller, a temperature sensor, a power drive circuit and a cold guide; the cold surface of the semiconductor refrigerator is installed on the cold guide; the temperature sensor is arranged close to the cold guide for collecting the current temperature of the cold guide; the temperature sensor is connected with the microcontroller; the microcontroller is connected with the input end of the power drive circuit, and the output end of the power drive circuit is connected with the semiconductor refrigerator; the microcontroller comprises a processor and a memory connected with the processor, and the memory stores a computer program executable by the processor, and the computer program is executed by the processor to realize the steps of the control method of the wearable air conditioner of the above-mentioned embodiments.

[0007] In a third aspect, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program, and the computer program is executed by a processor to realize the steps of the control method of the wearable air conditioner of the above-mentioned embodiments.

[0008] The control method of the wearable air conditioner provided by the above embodiment, by reducing the working power of the semiconductor refrigerator when the temperature of the cold guide reaches the first temperature, the temperature of the cold guide rises from the first temperature, and when the temperature of the cold guide rises to the second temperature, the working power of the semiconductor refrigerator is increased to lower the temperature of the cold guide from the second temperature. In this way, the temperature of the cold guide rises from the first temperature to the second temperature and then decreases, reactivating the cold receptors on the skin, allowing the user to feel cool, overcoming the skin temperature adaptation phenomenon. At the same time, since the user can feel cool at the current gear, the demand for the user to increase the gear to run the wearable air conditioner at high gear is reduced, and the endurance of the wearable air conditioner is prolonged.

[0009] The wearable air conditioner and storage medium provided by the above embodiment belong to the same concept as the corresponding control method of the wearable air conditioner, and therefore have the same technical effects as the corresponding control method of the wearable air conditioner, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the wearable air conditioner in an embodiment.

[0011] Figure 2 It is a flowchart of the control method of the wearable air conditioner in an embodiment.

[0012] Figure 3 It is a curve diagram of the TEC power and the temperature change of the cold guide in the control method of the conventional wearable air conditioner.

[0013] Figure 4 It is a flowchart of the control method of the wearable air conditioner in another embodiment.

[0014] Figure 5 It is a schematic diagram of the control method of the wearable air conditioner in an embodiment of the present application.

[0015] Figure 6 It is a curve diagram of the TEC power and the temperature change of the cold guide in an embodiment.

[0016] Figure 7 It is a flowchart of the control method of the wearable air conditioner in an embodiment.

[0017] Figure 8 It is a flowchart of the control method of the wearable air conditioner in another embodiment. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be further described in detail below in combination with the drawings and specific embodiments of the present application.

[0019] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings, and the described embodiments should not be regarded as limiting the present application. All other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0020] In the following description, the expression "some embodiments" describes a subset of all possible embodiments, and it should be noted that "some embodiments" can be the same subset or different subsets, and can be combined with each other without conflict.

[0021] In the following description, the terms "first, second, third" are only to distinguish similar objects, and do not represent a specific order of the objects. Understandably, "first, second, third" can be interchanged in a specific order or sequence as allowed, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0022] The working principle of a semiconductor refrigerator (TEC) is that when a direct current passes through a loop composed of two different semiconductor materials (P-type and N-type), heat will be transferred from one end to the other, causing one end to become cold (heat absorbing end) and the other end to become hot (heat releasing end). With the development of semiconductor refrigerator (TEC) technology, TEC (thermoelectric refrigeration) technology is applied to the wearable field, giving rise to portable and wearable air conditioners such as neck air conditioners and neck fans. Due to its portability and refrigeration characteristics, it is loved by users.

[0023] A wearable air conditioner, as shown in Figure 1 includes a semiconductor refrigerator 101, a microcontroller 102, a temperature sensor 103, a power driving circuit 104, and a cold guide 105. The cold side of the semiconductor refrigerator (TEC) 101 is usually mounted on the cold guide 105, which provides structural support for the semiconductor refrigerator 101. At the same time, the area of the semiconductor refrigerator 101 itself is small, and through the cold guide 105, the cold can be spread to a larger skin contact area, thereby efficiently and comfortably cooling the human body.

[0024] In some embodiments, the wearable air conditioner further includes a heat dissipation system. In an example, the heat dissipation system can include a heat sink and a fan. The hot side of the semiconductor refrigerator 101 is mounted on the heat sink, and the heat generated is quickly discharged to the surrounding air by the fan to maintain the refrigeration efficiency.

[0025] Taking a wearable air conditioner as an example, the cold guide 105 is usually two metal sheets (such as aluminum sheets) located on the inside of the neck device and can be in direct contact with the skin to achieve refrigeration.

[0026] The wearable air conditioner can also be made into other wearable forms, such as a wearable clothing air conditioner, a local band air conditioner, etc. By integrating multiple semiconductor refrigerators 101 in key areas of the clothing (such as the chest, back, abdomen), or arranging multiple semiconductor refrigerators 101 inside the band, which is used to be tied around the back area. The corresponding outside is integrated with a heat dissipation module (heat dissipation fins and fans). The cold energy is directly contacted with the skin through the cold guide 105 to cool the core area of the trunk.

[0027] The temperature sensor 103 is arranged close to the cold guide 105, and is used to collect the current temperature of the cold guide 105. The temperature sensor 103 is connected with the microcontroller 102, and sends the collected current temperature to the microcontroller 102. The output end of the microcontroller 102 is connected with the input end of the power drive circuit 104, and the output end of the power drive circuit 104 is connected with the semiconductor refrigerator 101. The microcontroller 102 determines the power control strategy according to the current temperature, and sends the corresponding control signal to the power drive circuit 104 according to the power control strategy. The power drive circuit 104 drives the semiconductor refrigerator 101 to adjust the working power in response to the control signal.

[0028] Specifically, the microcontroller 102 collects the current temperature of the cold guide 105 of the wearable air conditioner through the temperature sensor 103; when the current temperature of the cold guide 105 reaches a first temperature, the working power of the semiconductor refrigerator 101 is controlled to be reduced, so that the current temperature of the cold guide 105 rises from the first temperature; when the current temperature of the cold guide 105 rises to a second temperature, the working power of the semiconductor refrigerator 101 is controlled to be increased, so that the current temperature of the cold guide 105 falls from the second temperature; wherein the second temperature is higher than the first temperature.

[0029] Further, the microcontroller 102 can be a chip with a model number of CW32L083, MM32L0130, or STM32G030.

[0030] The wearable air conditioner provided in the present application can make the temperature of the cold guide 105 rise from the first temperature by reducing the working power of the semiconductor refrigerator 101 when the temperature of the cold guide 105 reaches the first temperature, and can make the temperature of the cold guide 105 fall from the second temperature by increasing the working power of the semiconductor refrigerator 101 when the temperature of the cold guide 105 rises to the second temperature. In this way, the temperature of the cold guide 105 of the wearable air conditioner rises from the first temperature to the second temperature and then falls again, reactivating the cold receptors on the skin, allowing the user to feel cool, overcoming the skin temperature adaptation phenomenon. At the same time, since the user can continuously feel cool at the current gear, the need for the user to increase the gear to run the wearable air conditioner at high gear is reduced, and the endurance of the wearable air conditioner is prolonged.

[0031] In another embodiment of the present application, a control method of a wearable air conditioner is provided, which is applied to the wearable air conditioner as shown in Figure 1 The microcontroller 102 as shown in Figure 2 includes the following components: In step 202, the current temperature of the heat conduction component of the wearable air conditioner is collected.

[0032] Specifically, when the wearable air conditioner is started, the current temperature of the heat conduction component 105 is collected by the temperature sensor 103. The microcontroller 102 can control the temperature sensor 103 to collect the current temperature of the heat conduction component 105 of the wearable air conditioner at a fixed interval according to the set frequency. In other embodiments, the microcontroller 102 can control the temperature sensor 103 to continuously collect the current temperature of the heat conduction component 105 of the wearable air conditioner. It can be understood that the temperature sensor 103 of the present application collects the temperature of the heat conduction component 105 instead of the skin temperature of the user, avoiding the problems of difficult skin and sensor adhesion, large individual differences, and high compliance risk.

[0033] In other embodiments, the temperature of the skin (such as the neck) of the user where the wearable air conditioner is worn can also be collected when the wearable air conditioner is worn by the user. In step 204, when the current temperature of the heat conduction component reaches the first temperature, the working power of the semiconductor refrigerator is controlled to be reduced, so that the current temperature of the heat conduction component rises from the first temperature.

[0034] It can be understood that in actual application, the processes of steps 202 to 204 can occur at any time period of actual work, can occur when the wearable air conditioner is just started, can occur when the wearable air conditioner is ended, or can occur in the middle of the work of the wearable air conditioner, which is not limited herein. In actual application, the working power of the semiconductor refrigerator 101 can be first controlled to be increased, so that the current temperature of the heat conduction component 105 decreases from the second temperature. Then, when the current temperature of the heat conduction component 105 decreases to the first temperature, the working power of the semiconductor refrigerator 101 is controlled to be reduced, so that the current temperature of the heat conduction component 105 rises from the first temperature.

[0035] It can be understood that in the control method of the wearable air conditioner provided by the present application, the order of steps in the flowchart can be changed according to different needs, and some steps can be omitted.

[0036] In Figure 2 , the steps in steps 202 to 206 can change the order of steps in the flowchart according to different needs, and some steps can be omitted. For example, the order of steps 204 and 206 can be interchanged. That is, step 204 can be executed before step 204.

[0037] In one embodiment, the wearable air conditioner provides multiple operating levels, each corresponding to a different target power of the thermoelectric cooler. After the wearable air conditioner is activated, the microcontroller 102 sends a control signal to the power drive circuit 104 according to the target power corresponding to the user-set operating level. The power drive circuit 104 responds to the control signal, driving the thermoelectric cooler to increase its operating power to the target power and operate at the target power.

[0038] The power drive circuit 104 can drive the operating power of the thermoelectric cooler 101 to the target power in two ways: either by gradually increasing the operating power of the thermoelectric cooler 101 to the target power, or by directly adjusting the operating power of the thermoelectric cooler 101 to the target power. No limitation is made here. In this embodiment, the method of gradually increasing the operating power of the thermoelectric cooler 101 driven by the power drive circuit 104 is described.

[0039] like Figure 3 As shown, the solid line represents the temperature change curve of the cooling component 105, and the dashed line represents the power change curve of the thermoelectric cooler 101. After the wearable air conditioner is activated, the microcontroller 102 sends a control signal to the power drive circuit 104 based on the target power corresponding to the operating level. The power drive circuit 104 responds to the control signal, driving the operating power of the thermoelectric cooler 101 to gradually increase until it reaches the target power. In actual operation, affected by factors such as the heat sink and ambient temperature, the operating power of the thermoelectric cooler 101 fluctuates around the target power until it stabilizes. Correspondingly, the temperature of the cooling component 105 decreases as the operating power of the thermoelectric cooler 101 increases until it stabilizes.

[0040] In this embodiment, after the wearable air conditioner is turned on, the temperature of the cooling component 105 decreases continuously as the power of the semiconductor cooler 101 increases, and then drops to the first temperature.

[0041] The first temperature refers to the lowest temperature that the cooling component 105 can reach when the semiconductor cooler 101 is running stably at the target power corresponding to the current setting. It should be understood that the first temperature corresponding to the same operating setting is not the same under different working conditions (human skin temperature, external ambient temperature). For example, when the external ambient temperature is high, the first temperature achievable at the same setting is lower than the first temperature achievable at the same setting when the external ambient temperature is low.

[0042] In an example, the temperature of the heat sink 105 corresponding to the target power at which the semiconductor cooler 101 is stabilized is determined as the first temperature when the microcontroller 102 collects the working power of the semiconductor cooler 101. For example, the working power corresponding to a gear is 10 W, and the microcontroller 102 collects the current temperature of the heat sink 105 through the temperature sensor 103 when it is monitored that the working power of the semiconductor cooler 101 is stabilized at 10 W, and the current temperature is determined as the first temperature.

[0043] In an example, the microcontroller 102 continuously collects the current temperature of the heat sink 105 through the temperature sensor 103, and when it is monitored that the temperature of the heat sink 105 is stabilized at the working power corresponding to the current gear, the collected current temperature is determined as the first temperature.

[0044] Specifically, when the wearable air conditioner is running at the current gear, if the current temperature difference of the heat sink 105 in the first time length is less than the threshold value, it is determined that the temperature of the heat sink 105 is stabilized, and the collected current temperature is determined as the first temperature.

[0045] For example, when the current temperature difference of the heat sink 105 at least two collection times in the first time length is less than the threshold value, it is determined that the temperature of the heat sink 105 is stabilized, and the collected current temperature is determined as the first temperature. The first time length can be a preset time length related to the collection frequency, such as a time length corresponding to five consecutive collection times, or a time length corresponding to two consecutive collection times.

[0046] It is worth noting that the "threshold value" refers to a preset and small temperature difference value, which represents the maximum range of temperature fluctuation of the heat sink 105 that can be allowed when determining that the heat sink 105 reaches a stable state within a determination period. The threshold value can be set to 0.01 °C to 0.5 °C. For example, 0.01 °C, 0.05 °C, 0.08 °C, 0.1 °C, 0.15 °C, 0.2 °C, 0.25 °C, 0.3 °C, 0.35 °C or 0.5 °C.

[0047] It is worth noting that the first time length is a preset observation time window, which can be set to 0.5 to 5 seconds. For example, 0.5 seconds, 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds.

[0048] Specifically, the microcontroller 102 can control the temperature sensor 103 to collect the current temperature of the heat sink 105 of the wearable air conditioner, continuously monitor all temperature values (such as 5 values) collected within the first time length (such as 4 seconds), and calculate the difference between the maximum value and the minimum value in these temperature values (i.e. the current temperature difference). If the difference is less than the threshold value (such as 0.2 °C), the microcontroller 102 can be sure that the temperature of the heat sink 105 has fluctuated within a very small range, so it can be determined that the heat sink 105 has reached a "stable" state, and the current temperature value is recorded as the "first temperature".

[0049] In this way, the optimal refrigeration performance reference value of the wearable air conditioner under the current environment (such as ambient temperature, human body temperature) and the current gear can be automatically and accurately measured, which provides a key calibration temperature for subsequent accurate control.

[0050] When the current temperature of the heat conduction member 105 reaches the first temperature, the working power of the semiconductor refrigerator 101 is controlled to be reduced. As the working power of the semiconductor refrigerator 101 is reduced, the temperature of the heat conduction member 105 is increased.

[0051] In step 206, when the current temperature of the heat conduction member rises to the second temperature, the working power of the semiconductor refrigerator is controlled to be increased so that the current temperature of the heat conduction member is decreased from the second temperature.

[0052] Specifically, when the current temperature of the heat conduction member 105 rises to the second temperature, the working power of the semiconductor refrigerator 101 is controlled to be increased so that the current temperature of the heat conduction member 105 is decreased from the second temperature.

[0053] In an embodiment, the second temperature is higher than the first temperature, and the target temperature difference between the second temperature and the first temperature is a preset value. The second temperature is determined according to the first temperature and the preset target temperature difference. For example, the first temperature is 26℃, the target temperature difference is 5℃, and the second temperature is 31℃. In this embodiment, the second temperature triggering the adjustment of the working power is not a fixed value, but is dynamically calculated according to the first temperature and the target temperature difference, so that the wearable air conditioner can dynamically determine the second temperature triggering the adjustment of the working power according to the current working condition, and the temperature change range of the heat conduction member 105 is relatively fixed.

[0054] By using the method of the present application, when the temperature of the heat conduction member 105 is reduced to the first temperature, the working power of the semiconductor refrigerator 101 is reduced to increase the temperature of the heat conduction member 105 from the first temperature. When the temperature of the heat conduction member 105 rises to the second temperature, the working power of the semiconductor refrigerator 101 is increased to decrease the temperature of the heat conduction member 105 from the second temperature. In this way, the temperature of the heat conduction member 105 is increased from the first temperature to the second temperature and then decreased, reactivating the cold receptors on the skin, so that the user can continuously feel cool, overcoming the skin temperature adaptation phenomenon. At the same time, since the user can continuously feel cool at the current gear, the demand for the user to increase the gear to run the wearable air conditioner at high gear is reduced, and the endurance of the wearable air conditioner is prolonged. The method of the present application can achieve both the two seemingly contradictory goals of enabling the user to continuously feel cool and prolonging the endurance of the product.

[0055] It can be understood that in the prior art wearable air conditioner, even if the thermal physical temperature of the heat guide 105 remains unchanged, the cold receptors of the user's skin will adapt with the extension of the action time, causing the subjective perception of the "coolness" intensity to gradually weaken until it disappears. This makes the constant temperature cooling mode of the prior art wearable air conditioner unable to provide a continuous good experience for the user.

[0056] In addition, in order to pursue strong instant cooling, the user tends to choose the highest cooling gear, causing the semiconductor cooler 101 to run at a high power for a long time, resulting in a rapid consumption of battery power, so that the device cannot meet the user's daily use requirements.

[0057] In the face of the above technical problems, those skilled in the art tend to follow a "straight-line" conventional thinking path: the user feels not cold - manually or automatically adjusts the cooling gear to a higher level - maintains a lower temperature at a higher power output - which will cause the wearable air conditioner to consume power faster, so that the device cannot meet the user's daily use requirements.

[0058] In the present application, by raising the temperature of the heat guide 105 from the first temperature to the second temperature and then lowering it again, the cold receptors on the skin are reactivated, thereby actively creating a dynamic, fluctuating temperature field on the user's skin, allowing the user to continuously feel cool, overcoming the skin temperature adaptation phenomenon. The technical solution of the present application jumps out of the conventional thinking path of those skilled in the art, effectively combines the characteristics of human senses, so that the user can feel a continuous cool feeling when using the wearable air conditioner. Moreover, in the technical solution of the present application, during the temperature rising stage of the heat guide 105, the semiconductor cooler 101 runs at a power lower than the rated maximum power of the current gear, and the average power is significantly reduced. Therefore, the technical solution of the present application effectively solves the two relative technical problems of "insufficient user cooling" and "insufficient battery life". The control method of the wearable air conditioner provided in the present application can reduce the energy consumption of the wearable air conditioner while improving the overall cooling effect of the wearable air conditioner, effectively prolonging the battery life of the wearable air conditioner after a single charge.

[0059] In one embodiment, as shown in FIG. 1, a control method of a wearable air conditioner includes: Figure 4 Step 402: Collecting the current temperature of the heat guide of the wearable air conditioner.

[0060] Step 404: Determining whether the current temperature reaches the first temperature. If yes, step 406 is executed.

[0061] Step 406: Controlling to reduce the working power of the semiconductor cooler to raise the current temperature of the heat guide from the first temperature.

[0062] ​Step 408, judging whether the current temperature rises to the second temperature. If yes, step 410 is executed.

[0063] Step 410, controlling to increase the working power of the semiconductor refrigerator, so that the current temperature of the heat conducting member decreases from the second temperature.

[0064] The implementation process and principle of the above steps have been described in steps 202 to 206, and will not be repeated here.

[0065] After step 410, return to execute step 404 and the steps after it, to cycle the working power of the semiconductor refrigerator according to the current temperature of the heat conducting member, so as to realize the current temperature of the heat conducting member cycles from the first temperature to the second temperature and then decreases to the first temperature.

[0066] It can be understood that in actual application, the flow of steps 402 to 410 can occur at any time period of actual work, can occur when the wearable air conditioner just starts to work, can occur when the wearable air conditioner ends to work, or can occur in the middle of the wearable air conditioner working, which is not limited here. In actual application, it can also be judged whether the current temperature of the heat conducting member 105 reaches the second temperature, and after reaching the second temperature, the working power of the semiconductor refrigerator 101 is controlled to increase, so that the current temperature of the heat conducting member 105 decreases from the second temperature. Then, it is judged whether the current temperature of the heat conducting member 105 reaches the first temperature, and after reaching the first temperature, the working power of the semiconductor refrigerator 101 is controlled to decrease, so that the current temperature of the heat conducting member 105 rises from the first temperature.

[0067] It can be understood that in the control method of the wearable air conditioner provided by the application, the order of steps in the flowchart can be changed according to different needs, and some steps can be omitted.

[0068] In Figure 4 , the steps in steps 402 to 410 can change the order of steps in the flowchart according to different needs, and some steps can be omitted. For example, the step order of step 404 and step 408 can be interchanged, that is, step 404 can be executed before step 208; the step order of step 406 and step 410 can be interchanged, that is, step 406 can be executed before step 410.

[0069] Figure 6 In the solid line in the figure, the temperature change curve of the heat conducting member 105 is shown, and the dashed line is the power change curve of the semiconductor refrigerator 101. As Figure 5 and Figure 6As shown, the current temperature of the heat conduction member 105 is monitored in real time, and when the current temperature of the heat conduction member 105 reaches the first temperature, the working power of the semiconductor refrigerator 101 is controlled to be reduced, and then the temperature of the heat conduction member 105 rises from the first temperature as the working power of the semiconductor refrigerator 101 is reduced. When the current temperature of the heat conduction member 105 rises to the second temperature, the current temperature of the heat conduction member 105 is lowered from the second temperature by controlling the working power of the semiconductor refrigerator 101 to be increased. By circulating the above control, the temperature of the heat conduction member 105 can be circulated to rise from the first temperature to the second temperature and then to be lowered to the first temperature. Figure 6 As shown, the temperature of the heat conduction member 105 can be circulated to rise from the first temperature to the second temperature and then to be lowered to the first temperature.

[0070] By comparison Figure 3 It can be found that in the control method of the conventional wearable air conditioner, the working power of the semiconductor refrigerator 101 is gradually increased and reaches the target power after the wearable air conditioner is started. The temperature of the heat conduction member 105 is lowered and gradually stabilized as the working power of the semiconductor refrigerator 101 is increased. Without changing the working gear, the temperature of the heat conduction member 105 is stabilized at a level for a long time, which will cause the problem of skin temperature adaptation.

[0071] Skin temperature adaptation is a use pain point of the wearable air conditioner, which specifically shows that when the skin is in a constant low temperature stimulation for a long time, the nerve receptor will gradually adapt to this temperature, resulting in that the "cooling feeling" is weakened or even disappeared, even if the actual temperature is still very low. The user will feel that "it is not so cool". When the user has this feeling, in order to pursue the feeling of "being cooler", the user usually continuously increases the gear, and the wearable air conditioner has reduced endurance due to the high gear operation.

[0072] The control method of the wearable air conditioner in the present application, as shown in Figure 5 and Figure 6As shown, by collecting the current temperature of the cold guide 105, when the current temperature decreases and stabilizes at the first temperature, the temperature of the cold guide 105 is raised from the first temperature by reducing the working power of the semiconductor refrigerator 101. When the temperature of the cold guide 105 rises to the second temperature, the working power of the semiconductor refrigerator 101 is actively increased to lower the temperature of the cold guide 105 from the second temperature, forming a dynamic cycle. By monitoring the real-time temperature of the cold guide 105 of the wearable air conditioner, and adjusting the working power of the semiconductor refrigerator 101 according to the real-time temperature, the real-time temperature of the cold guide 105 is cycled from the first temperature to the second temperature and then lowered to the first temperature. In this way, the cold receptors on the skin are constantly reactivated, breaking the adaptation process of the nervous system. Each time the user reenters the "cooler" state from the "warmer" state, the user will reexperience the obvious coolness, thereby maintaining a continuous cool perception and overcoming the skin temperature adaptation phenomenon. In the case of an unchanged external environment, the user can continuously experience coolness at the current gear, reducing the need for the user to increase the gear to operate the wearable air conditioner at a high gear, thereby prolonging the endurance of the wearable air conditioner. The method of the present application can achieve both the seemingly contradictory goals of enabling the user to continuously experience coolness and prolonging the endurance of the product.

[0073] In an embodiment, the temperature of the cold guide 105 is cycled from the first temperature to the second temperature and then lowered to the first temperature, constantly reactivating the cold receptors on the skin, enabling the user to continuously experience coolness. In this process, the temperature difference between the second temperature and the first temperature is critical. If the temperature difference is too small, the temperature variation of the cold guide 105 is small, and the stimulation effect on the skin cold receptors is small, so the user cannot continuously experience coolness. If the temperature difference is too large, the temperature variation of the cold guide 105 is large, which on the one hand causes the user to have the illusion that the product is "broken", and on the other hand makes the user feel that the temperature variation is abrupt in use. For example, the user can clearly feel that it is too cold for a while and not cool enough for a while. This strong temperature difference affects the user experience and loses the "unconscious" comfort of temperature regulation.

[0074] Based on this, in an embodiment, the temperature difference between the second temperature and the first temperature is preferably 2-6°C. This temperature regulation range is sufficient for the receptors to clearly perceive a change and effectively break the skin temperature adaptation, without making the user feel uncomfortable.

[0075] In actual situations, the manufacturer can set the specific target temperature difference for dynamic adjustment of the wearable air conditioner within the range, for example, the target temperature difference is set to 4℃. The second temperature is determined according to the first temperature and the preset target temperature difference. For example, the first temperature is 26℃, and the second temperature is 30℃. The wearable air conditioner increases the temperature of the cold guide 105 by reducing the working power of the semiconductor refrigerator 101 when the temperature of the cold guide 105 is reduced to 26℃, and reduces the temperature of the cold guide 105 by increasing the working power of the semiconductor refrigerator 101 when the temperature of the cold guide 105 is increased to 30℃. Thus, the temperature of the cold guide 105 is cycled from 26℃ to 30℃ and then to 26℃, which continuously reactivates the cold receptors on the skin, allowing the user to continuously feel cool.

[0076] In some embodiments, the manufacturer can set the temperature difference range between the second temperature and the first temperature of the wearable air conditioner to be 2-6℃, and the wearable air conditioner dynamically determines the specific target temperature difference between the second temperature and the first temperature during actual operation according to the external environment and the skin temperature.

[0077] Specifically, in the case where the external environment temperature or the skin temperature is higher than the preset value, the target temperature difference can be the upper limit value of the temperature difference range or close to the upper limit value. For example, in the case where the external environment temperature is relatively high, the specific target temperature difference is set to 4℃, 5℃ or 6℃. Thus, the cooling-rewarming cycle can be performed at a higher power, which can provide powerful cooling while breaking the temperature adaptation and providing effective coolness.

[0078] When the external environment temperature or the skin temperature is lower than the preset value, the target temperature difference can be the lower limit value of the temperature difference range or close to the lower limit value. For example, in the case where the external environment temperature is relatively cool, the specific target temperature difference can be set to 2℃ or 3℃, which can break the temperature adaptation and provide effective coolness.

[0079] In this way, the target temperature difference between the second temperature and the first temperature can be dynamically and intelligently determined according to the external environment temperature or the human skin temperature to meet the needs of the actual use environment.

[0080] In actual control, the implementation manner of controlling the reduction of the working power of the semiconductor refrigerator 101 can be to control the working power of the semiconductor refrigerator 101 to be reduced from the first working power to the second working power.

[0081] The first working power refers to the working power corresponding to the temperature of the cold guide 105 reaching the first temperature, which is usually the target power corresponding to the current working gear.

[0082] The second working power refers to the working power corresponding to the semiconductor refrigerator 101 when the temperature of the cold guide 105 reaches the second temperature. It should be understood that the second working power is not fixed, but is closely related to the external environment temperature, the human skin temperature, etc.

[0083] The system can determine the second power required to reach the second temperature according to the current external environment temperature, the human skin temperature, the first temperature and the second temperature, and control the working power of the semiconductor refrigerator 101 to decrease from the first working power to the second working power, so as to realize the increase of the current temperature of the cold guide 105 from the first temperature to the second temperature. For example, the working power of the semiconductor refrigerator 101 is directly controlled to decrease from 10 W to 5 W.

[0084] However, this way may cause the temperature of the cold guide 105 to quickly rise in a short time, and the user clearly perceives that the cooling temperature of the wearable air conditioner quickly rises, and may mistakenly think that the wearable air conditioner does not cool or is powered off. This is a jarring and uncomfortable experience, like reminding the user that the device is saving power, which destroys the immersive cool feeling.

[0085] To solve the problem, in an embodiment, the control of decreasing the working power of the semiconductor refrigerator 101 includes gradually decreasing the working power of the semiconductor refrigerator 101 over time according to a first change function. By gradually decreasing the working power of the semiconductor refrigerator 101 over time according to the first change function, the jarring and abnormal feeling of the user caused by the sudden temperature rise can be reduced.

[0086] In an embodiment, the way of controlling the increase of the working power of the semiconductor refrigerator 101 can be that the working power of the semiconductor refrigerator 101 is controlled to increase from the second working power to the first working power. By controlling the working power of the semiconductor refrigerator 101 to increase from the second working power to the first working power, the current temperature of the cold guide 105 is realized to decrease from the second temperature to the first temperature. For example, the working power of the semiconductor refrigerator 101 is controlled to increase from 5 W to 10 W.

[0087] In an embodiment, if the working power of the semiconductor refrigerator 101 is directly controlled to increase from the second working power corresponding to the second temperature to the first working power corresponding to the gear, the temperature of the cold guide 105 will quickly decrease in a short time, and the user clearly perceives that the cooling temperature of the wearable air conditioner quickly decreases. Physiologically, the skin temperature receptor is very sensitive to the change rate. The faster the cooling, the more intense the stimulation, and the faster and deeper the adaptation process of the receptor will start for self-protection. The user will feel that “it cools fast, but it also heats up fast”. After the strong initial cold feeling, the receptor quickly fatigues, and the user will feel “not cool” faster, thereby generating the impulse to increase the gear again. This is contrary to the demand to reduce the increase of the gear.

[0088] To solve the problem, in an embodiment, the control increases the working power of the semiconductor refrigerator 101 includes: gradually increasing the working power of the semiconductor refrigerator 101 over time according to a second change function. By gradually increasing the working power of the semiconductor refrigerator 101 over time according to the second change function, the sudden drop in temperature can be reduced, and the user can feel the temperature drop suddenly and abnormally.

[0089] Wherein, the first change function and the second change function can be set as any one of a piecewise function, a linear function or an S-curve function according to requirements.

[0090] In an embodiment, the first change function is a linear decreasing function, that is, the working power of the semiconductor refrigerator 101 uniformly and at a constant rate decreases with the change of time, so that the temperature of the heat sink 105 slowly and uniformly linearly rises with time.

[0091] Specifically, the expression of the first change function can be: ; Wherein, P represents the power, a represents a temperature change factor, which is the slope of the linear change of the power, a is a constant, t is time.

[0092] Specifically, after generating the first change function , the value of the constant can be determined by substituting numerical values.

[0093] Specifically, the point of the power change curve of the semiconductor refrigerator 101 in Figure 6 can be substituted into the first change function to calculate the value of the constant . For example, the working power corresponding to the time "t0" and "t0" can be substituted into the first change function to correspondingly calculate the value of the constant .

[0094] In an embodiment, the second change function is a linear decreasing function, that is, the working power of the semiconductor refrigerator 101 uniformly and at a constant rate increases with the change of time, so that the temperature of the heat sink 105 slowly and uniformly linearly decreases with time.

[0095] Specifically, the expression of the second change function can be: ; Wherein, P represents the power, a represents a temperature change factor, which is the slope of the linear change of the power, is a constant, is time.

[0096] By controlling the working power of the semiconductor refrigerator 101 to decrease uniformly at a constant rate as the temperature of the heat conduction member 105 decreases to the first temperature, and to increase uniformly at a constant rate as the temperature of the heat conduction member 105 increases to the second temperature, the temperature of the heat conduction member 105 is caused to cycle uniformly at a constant rate from the first temperature to the second temperature and then to the first temperature again, thereby continuously reactivating the cold receptors on the skin and causing the user to feel cool continuously without noticing it.

[0097] This slow change simulates a very natural process of environmental temperature change, rather than a sudden malfunction of the device. This mild stimulation is sufficient to prevent sensory adaptation (because the temperature is changing), but its slowness does not cause the user to be aware and uncomfortable, "tricking" the nervous system of the user and thus maintaining the feeling of "continuous coolness".

[0098] At the same time, this linear power regulation is beneficial to both the circuit and the system of the wearable air conditioner.

[0099] In terms of circuit, a sudden power drop can cause a transient reverse voltage or current surge across the semiconductor refrigerator 101, which is not good for the long-term life of the semiconductor refrigerator 101 and the driving circuit. Rapid changes in temperature can also cause stress to the heat conduction member 105 or the surrounding structure due to thermal expansion and contraction. In terms of system control, such large step changes are prone to cause system overshoot or oscillation, requiring more complex control algorithms to stabilize.

[0100] The linear regulation of power in this application makes the power smooth and downward, which is very friendly to the semiconductor refrigerator 101 and the circuit, and is a kind of "soft" control. The temperature field change of the whole system is also smooth, easy to predict and manage, and the system stability is very high.

[0101] Specifically, the slope of the second change function is determined by substituting the numerical values. The value of the constant is determined.

[0102] Specifically, the point of the power change curve of the semiconductor refrigerator 101 in Figure 6 is substituted into the second change function to calculate the value of the constant . For example, the working power corresponding to the time "t1" and "t1" can be substituted into the second change function to calculate the value of the constant .

[0103] In an embodiment, the rate of the linear adjustment is related to the slope of the first change function and the second change function. The greater the slope, the greater the rate of change of the temperature adjustment, and the smaller the slope, the smaller the rate of change of the temperature adjustment.

[0104] In an embodiment, the slope of the first change function and the second change function is a preset value or a random value within a preset slope range.

[0105] In an embodiment, the slope of the first change function and the second change function is a preset value or a random value within a preset slope range.

[0106] In an embodiment, the slope of the first change function and the second change function is a preset value or a random value within a preset slope range.

[0107] In an embodiment, when the wearable air conditioner first reduces the working power of the semiconductor cooler 101 during operation at the current gear, the slope of the first change function uses a preset value or a random value within a preset slope range. The slope of the change function for the next adjustment is determined according to the slope of the temperature change function generated by the last adjustment.

[0108] Specifically, after the wearable air conditioner is turned on or shifted, when the current temperature of the cold guide 105 is reduced and stabilized to the first temperature, the random value or the preset value is used as the slope of the first change function to control the reduction of the working power of the semiconductor cooler 101, so that the temperature of the cold guide 105 is increased to the second temperature.

[0109] In actual operation, under the same slope of the change function, the adjustment time to reach the second temperature is not the same due to the influence of the user's skin temperature and the external environment temperature. The temperature receptors of the human body adapt very quickly to regular and predictable stimuli. If the working power of the semiconductor cooler 101 is always controlled linearly with the same slope, the cooling effect and the comfort of the cool feeling adjustment will be poor.

[0110] In this embodiment, the slope of the temperature change curve generated by the current power adjustment is used to dynamically determine the slope of the first change function or the second change function used for the next power adjustment. Thus, the actual result (real slope) of the current control process can be used as feedback to optimize the slope used for the next control.

[0111] Specifically, after the step of controlling to reduce the working power of the semiconductor refrigerator 101 or controlling to increase the working power of the semiconductor refrigerator 101, the method of the application further comprises: determining the slope of the temperature change curve of the current power adjustment according to the first temperature, the second temperature, the start time and the end time of the current power adjustment; and modifying the slope of the first change function or the second change function used in the next power adjustment according to the slope of the temperature change curve of the current power adjustment.

[0112] Specifically, according to the first temperature, the second temperature, the start time and the end time of the current power adjustment, a temperature change curve formula can be fitted: ; wherein, is a constant.

[0113] The slope of the temperature change curve of the current power adjustment can be assigned to the slope of the first change function or the second change function used in the next power adjustment of the semiconductor refrigerator 101.

[0114] In the embodiment, the slope of the temperature change curve obtained after the current power adjustment of the semiconductor refrigerator 101 is modified to correct the slope of the first change function or the second change function used in the next power adjustment, so that the change trend of the power adjustment of the semiconductor refrigerator 101 is the same as or adapted to the change trend of the temperature change of the heat conduction member 105, thereby providing the user with the best cooling experience.

[0115] It can be understood that the change trend of the temperature change of the heat conduction member 105 is related to its own properties and the environment in which it is located. The change trend of the temperature change of the heat conduction member 105 is different in different environments.

[0116] For example, if the fitted temperature change rate is slow, it indicates that the thermal inertia of the current environment is large and / or the temperature change of the heat conduction member 105 is slow, and accordingly the change trend of the power change function (the first change function and the second change function) is reduced, so that the power changes in a more gentle manner, thereby avoiding the phenomenon of temperature overshoot or undershoot caused by too fast power change, ensuring a more stable temperature control process and achieving more accurate temperature control. On the contrary, if the temperature change rate is fast, it indicates that the thermal inertia of the current environment is small and / or the temperature change of the heat conduction member 105 is fast, and accordingly the slope of the power change function (the first change function and the second change function) is increased, so that the power changes in a more rapid manner, thereby improving the response speed and ensuring that the target temperature can be reached quickly.

[0117] ​​Therefore, by setting the power adjustment trend of the semiconductor refrigerator 101 to be the same as or adapted to the temperature change trend of the heat conduction member 105, the user's experience is improved. The user's skin perceives continuous, natural, and non-impulsive temperature fluctuations, rather than an uncontrolled state of hot and cold.

[0118] In addition, the semiconductor refrigerator can also be caused to perform power adjustment within the temperature range specified by the heat conduction member 105 at a rate that conforms to the current working condition.

[0119] In an embodiment, the control method of the wearable air conditioner includes the following steps: Figure 7 As shown in the figure, the method includes the following steps:

[0120] Step 704: Collect the current temperature of the heat conduction member of the wearable air conditioner.

[0121] Step 706: When the current temperature difference of the heat conduction member within the first time period is less than a threshold value, determine the collected current temperature as the first temperature.

[0122] Step 708: When the current temperature of the heat conduction member decreases to the first temperature, gradually reduce the working power of the semiconductor refrigerator over time according to the first change function, so that the current temperature of the heat conduction member rises from the first temperature.

[0123] In the first time, when the working power of the semiconductor refrigerator 101 is reduced, the slope of the first change function adopts a preset value or a random value within a preset slope range.

[0124] Step 710: According to the first temperature, the second temperature, the start time and the end time of the current power adjustment, determine the slope of the temperature change curve of the current adjustment; according to the slope of the temperature change curve of the current adjustment, modify the slope of the second change function used in the next power adjustment.

[0125] Step 712: When the current temperature of the heat conduction member rises to the second temperature, gradually increase the working power of the semiconductor refrigerator over time according to the second change function, so that the current temperature of the heat conduction member decreases from the second temperature.

[0126] Step 714: According to the first temperature, the second temperature, the start time and the end time of the current power adjustment, determine the slope of the temperature change curve of the current adjustment; according to the slope of the temperature change curve of the current adjustment, modify the slope of the first change function used in the next power adjustment.

[0127] After step 714, if the operation is not ended, return to step 708 to make the temperature of the cold guide 105 cycle from the first temperature to the second temperature and then to the first temperature again, so as to continuously reactivate the cold receptors on the skin, so that the user can continuously feel cool, and overcome the skin temperature adaptation phenomenon. At the same time, since the user can continuously feel cool at the current gear, the need for the user to increase the gear to make the wearable air conditioner run at a high gear is reduced, and the endurance of the wearable air conditioner can be prolonged.

[0128] It can be understood that, in actual application, the processes of steps 702 to 714 can occur at any time period of actual work, can occur when the wearable air conditioner is just started, can occur when the wearable air conditioner is ended, or can occur in the middle of the work of the wearable air conditioner, which is not limited here. In actual application, it can also be judged whether the current temperature of the cold guide 105 reaches the second temperature, and after reaching the second temperature, the working power of the semiconductor refrigerator 101 is controlled to be increased, so that the current temperature of the cold guide 105 decreases from the second temperature. Then, it is judged whether the current temperature of the cold guide 105 reaches the first temperature, and after reaching the first temperature, the working power of the semiconductor refrigerator 101 is controlled to be reduced, so that the current temperature of the cold guide 105 increases from the first temperature.

[0129] In other embodiments, the control method of the wearable air conditioner can also be the process steps in the order as shown in Figure 8 .

[0130] It can be understood that, in the control method of the wearable air conditioner provided by the present application, according to different needs, Figure 7 the order of steps can be changed, and some steps can be omitted. Specifically, it can be as shown in Figure 8 .

[0131] Figure 8 The implementation process and principles of the steps in the above embodiment are recorded in steps 702 to 714, and will not be repeated here.

[0132] In another aspect, the present application also provides a computer readable storage medium, which stores a computer program. When the computer program is executed by a processor, each process of the above-mentioned control method of the wearable air conditioner is implemented, and the same technical effects can be achieved. To avoid repetition, it will not be repeated here. The computer readable storage medium includes a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0133] In another aspect, the embodiment of the present application further provides a computer program product comprising a computer program which, when executed by a processor, implements each process of the control method of the wearable air conditioner and achieves the same technical effects. To avoid repetition, details are not described herein.

[0134] It should be noted that, in this document, the terms "comprise", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0135] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and necessary general hardware platforms, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes a plurality of instructions for making a terminal (which can be a mobile phone, computer, server, or network device, etc.) execute the methods described in each embodiment of the present application.

[0136] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control method for a wearable air conditioner, characterized in that, The method comprises: acquiring a current temperature of a heat conduction member of a wearable air conditioner; when the current temperature of the heat conduction member reaches a first temperature, controlling to reduce the working power of a semiconductor refrigerator so as to increase the current temperature of the heat conduction member from the first temperature; when the current temperature of the heat conduction member increases to a second temperature, controlling to increase the working power of the semiconductor refrigerator so as to decrease the current temperature of the heat conduction member from the second temperature; wherein the second temperature is higher than the first temperature. 2.The control method of the wearable air conditioner of claim 1, wherein, After the step of controlling to increase the working power of the semiconductor refrigerator, the step of controlling to reduce the working power of the semiconductor refrigerator when the current temperature of the heat conduction member reaches a first temperature and the steps after the step are executed in a cycle to adjust the working power of the semiconductor refrigerator according to the current temperature of the heat conduction member. 3.The control method of the wearable air conditioner of claim 1, wherein, The step of controlling to reduce the working power of the semiconductor refrigerator comprises: 4.The control method of the wearable air conditioner of claim 1, wherein, controlling the working power of the semiconductor refrigerator to decrease from a first working power to a second working power. The step of controlling to reduce the working power of the semiconductor refrigerator comprises: 5.The control method of the wearable air conditioner of claim 4, wherein, gradually decreasing the working power of the semiconductor refrigerator over time according to a first change function. ； wherein, represents power, represents a temperature variation factor, which is a slope that affects linear variation of power, is a constant, is time. 6.The control method of the wearable air conditioner of claim 1, wherein, The first change function is: The step of controlling to increase the working power of the semiconductor refrigerator comprises: 7.The control method of the wearable air conditioner of claim 4, wherein, controlling the working power of the semiconductor refrigerator to increase from a second working power to a first working power. The step of controlling to increase the working power of the semiconductor refrigerator comprises: 8.The control method of the wearable air conditioner according to claim 7, wherein, gradually increasing the working power of the semiconductor refrigerator over time according to a second change function. ； wherein P represents power, T represents a temperature, is a constant, is time. 9.The control method of the wearable air conditioner of claim 5, wherein, The second change function is: 10.The control method of the wearable air conditioner of claim 8, wherein, When the working power of the semiconductor refrigerator is reduced for the first time during the operation of the wearable air conditioner at a current gear, the slope of the first change function adopts a preset value or a random value within a preset slope range. After the step of controlling to reduce the working power of the semiconductor refrigerator or the step of controlling to increase the working power of the semiconductor refrigerator, the method comprises: determining the slope of a temperature change curve of the current adjustment according to the first temperature, the second temperature, the start time and the end time of the current power adjustment; 11. The control method of the wearable air conditioner according to any one of claims 1 to 10, characterized in that, modifying the slope of the first change function and / or the second change function used in the next power adjustment according to the slope of the temperature change curve of the current adjustment. The method comprises:

12. The control method of the wearable air conditioner according to any one of claims 1 to 10, characterized in that, when the temperature difference of the heat conduction member is less than a threshold value within a first time length after the wearable air conditioner operates at a current gear, determining the acquired current temperature as the first temperature. 13.The control method of the wearable air conditioner of claim 12, wherein, The temperature difference between the second temperature and the first temperature ranges from 2 to 6 degrees Celsius. The method comprises:

14. A wearable air conditioner, characterized by, determining the second temperature according to the target temperature difference between the second temperature and the first temperature and the first temperature. The method comprises: a semiconductor refrigerator, a microcontroller, a temperature sensor, a power driving circuit and a heat conduction member; the cold surface of the semiconductor refrigerator is installed on the heat conduction member; the temperature sensor is arranged close to the heat conduction member and is used to acquire the current temperature of the heat conduction member; the temperature sensor is connected with the microcontroller; The microcontroller is connected with an input end of the power drive circuit, and an output end of the power drive circuit is connected with the semiconductor refrigerator. The microcontroller comprises a processor and a memory connected with the processor, and the memory stores a computer program executable by the processor, and the computer program is executed by the processor to implement the steps of the control method of the wearable air conditioner in any one of claims 1 to 13.

15. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program is executed by the processor to implement the steps of the control method of the wearable air conditioner in any one of claims 1 to 13.

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