Intelligent wearable device and surface temperature detection control system thereof

Abstract

The invention discloses a surface temperature detection control system which comprises a temperature sensor and a controller. The temperature sensor is arranged in an equipment shell of the intelligent wearable equipment, is attached to the inner surface of a contact part, used for being in contact with human skin, on the equipment shell and is used for detecting the temperature of the outer surface of the contact part; the controller is in signal connection with the temperature sensor and used for executing cooling measures corresponding to a preset temperature interval when the detection value of the temperature sensor reaches the preset temperature interval. Thus, the temperature of the outer surface of the contact part is monitored by the temperature sensor in real time, and when the temperature of the contact part rises to the preset temperature interval, corresponding cooling measures are executed in time through the controller, so that the contact part is rapidly cooled and controlled within a certain range, and the contact part is prevented from being damaged. And local skin in contact with the contact component is prevented from being scalded by low temperature due to too high temperature, so that the user experience is improved. The invention further discloses the intelligent wearable device, and the beneficial effects of the intelligent wearable device are as described above.

Description

Technical Field

[0001] The present invention relates to the technical field of wearable devices, and particularly relates to a surface temperature detection and control system. The present invention also relates to an intelligent wearable device. Background Art

[0002] With the development of virtual reality and augmented reality technologies, more and more intelligent wearable devices have been widely used, such as VR (Virtual Reality) products, AR (Augmented Reality) products, etc.

[0003] In the field of intelligent wearable devices, various head-mounted and glasses-shaped product forms have emerged continuously. Currently, AR and VR products are becoming more and more lightweight, and glasses-shaped AR and VR products are increasingly becoming the mainstream of the market. Most traditional intelligent wearable devices adopt a passive heat dissipation method. The basic idea of solving heat dissipation is to transfer the heat of heat-generating components such as the control main board, optical engine components, and battery modules to the housing, and then conduct heat exchange between the housing and the outside air, and then dissipate the heat into the air.

[0004] However, during the wearing and use of intelligent wearable devices such as AR and VR products, a large area of the outer surface area of the housing is in direct close contact with the human skin. For example, the temple housing part of glasses-shaped AR and VR products, or the forehead housing part of head-mounted AR and VR products, etc. Since the heat of the heat-generating components inside the intelligent wearable device is transferred to the housing, in the case of long-term use, the temperature at the position where the device housing is in close contact with the human skin may be too high, such as close to about 50 °C, and it is often difficult for users to notice during the use of the intelligent wearable device. Therefore, it is very likely to cause low-temperature burns to the local skin, resulting in a poor user experience.

[0005] Therefore, how to prevent local skin from being low-temperature burned and improve the user experience during the use of intelligent wearable devices by users is a technical problem faced by those skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a surface temperature detection and control system, which can prevent local skin from being low-temperature burned and improve the user experience during the use of intelligent wearable devices by users. Another purpose of the present invention is to provide an intelligent wearable device.

[0007] To solve the above technical problems, the present invention provides a surface temperature detection and control system, including a temperature sensor and a controller;

[0008] The temperature sensor is disposed within the device housing of the smart wearable device and is attached to the inner surface of the contact portion on the device housing for contacting the human skin, for detecting the outer surface temperature of the contact portion;

[0009] The controller is signal-connected to the temperature sensor and is configured to execute a cooling measure corresponding to the preset temperature range when the detected value of the temperature sensor reaches the preset temperature range.

[0010] In some specific embodiments, the temperature sensor is a thermosensitive element whose electrical parameters vary with temperature, and the controller matches the temperature value according to the electrical parameters of the temperature sensor and the preset correspondence between temperature and electrical parameters.

[0011] In some specific embodiments, the controller includes a first execution module, a second execution module, and a third execution module;

[0012] When the detected value of the temperature sensor reaches the low temperature range and remains within the low temperature range for a preset duration, the first execution module issues an alarm;

[0013] When the detected value of the temperature sensor reaches the medium temperature range and remains within the medium temperature range for a preset duration, the second execution module issues an alarm and reduces the power consumption of the smart wearable device;

[0014] When the detected value of the temperature sensor reaches the high temperature range and remains within the high temperature range for a preset duration, the third execution module shuts down the running program and / or power supply of the smart wearable device;

[0015] Wherein, the temperature values corresponding to the low temperature range, the medium temperature range, and the high temperature range increase gradually.

[0016] In some specific embodiments, the controller further includes a first timer, a second timer, and a third timer;

[0017] The first timer is signal-connected to the first execution module and is configured to record the continuous duration during which the detected value of the temperature sensor enters the low temperature range, and to reset its recording result when the detected value of the temperature sensor exits the low temperature range for a preset duration;

[0018] The second timer is signal-connected to the second execution module and is configured to record the continuous duration during which the detected value of the temperature sensor enters the medium temperature range, and to reset its recording result when the detected value of the temperature sensor exits the medium temperature range for a preset duration;

[0019] The third timer is signal-connected to the third execution module and is configured to record the continuous duration during which the detected value of the temperature sensor enters the high temperature range.

[0020] In some specific embodiments, the controller further includes a fourth timer;

[0021] The fourth timer is signal - connected to the second execution module and is used to record the continuous duration during which the detected value of the temperature sensor exits the medium - temperature range and is lower than the preset temperature value, so as to cause the second execution module to restore the power consumption of the smart wearable device when the recording result reaches the preset threshold.

[0022] In some specific embodiments, the controller further includes a display - sending module and a wireless communication module;

[0023] The display - sending module is signal - connected to the first execution module and the second execution module, and is used to send the corresponding alarm information to the smart wearable device for display when the first execution module or the second execution module issues an alarm;

[0024] The wireless communication module is signal - connected to the first execution module and the second execution module, and is used to send the corresponding alarm information to the user's mobile intelligent device when the first execution module or the second execution module issues an alarm.

[0025] In some specific embodiments, the controller is disposed in the device housing, and the controller includes a main control board and a heating element disposed on the main control board;

[0026] It further includes a first heat insulation board disposed in the device housing. The first heat insulation board is located between the heating element and the temperature sensor and is used to isolate the heat transfer from the heating element to the temperature sensor.

[0027] In some specific embodiments, the temperature sensor includes a temperature control board and a detection chip disposed on the temperature control board. The temperature control board is attached to the inner surface of the contact part, and the detection chip faces the heating element;

[0028] The first heat insulation board covers the surfaces of the detection chip and the temperature control board facing the heating element, as well as the inner surface of the contact part.

[0029] In some specific embodiments, it further includes a second heat insulation board. The second heat insulation board is attached to the inner surface of the contact part and is used to isolate the heat transfer from the heating element to the contact part. An installation hole is provided on the second heat insulation board;

[0030] The temperature sensor includes a temperature control board and a detection chip disposed on the temperature control board. The temperature control board is attached to the inner side of the second heat insulation board, and the detection chip is embedded in the installation hole;

[0031] The first heat insulation plate covers the surface of the temperature control plate facing the heating element.

[0032] In some specific embodiments, a heat conductive material layer is filled between the inner wall of the mounting hole and the detection chip to enhance the heat conduction efficiency between the detection chip and the contact part.

[0033] In some specific embodiments, a heat pipe is further included and attached to the inner surface of the contact part to evenly disperse the heat transferred to the contact part on the inner surface of the contact part.

[0034] The present invention further provides a smart wearable device, including a device housing, and further including the surface temperature detection control system as described in any one of the above.

[0035] The surface temperature detection control system provided by the present invention mainly includes a temperature sensor and a controller. Among them, the temperature sensor is arranged inside the device housing of the smart wearable device, specifically attached to the inner surface of the contact part of the device housing for contacting the human skin, and is mainly used to detect the outer surface temperature of the contact part. Since the outer surface of the contact component of the device housing needs to be in close contact with the user's skin during use, arranging the temperature sensor inside the device housing can avoid affecting the normal wearing of the user; at the same time, since the thickness of the device housing of the smart wearable device is usually very thin, and the heat inside the smart wearable device needs to be transferred from the inner surface of the contact part of the device housing to the outer surface, the temperatures of the inner and outer surfaces of the contact part are basically the same, so that the temperature detection result of the inner surface of the contact part by the temperature sensor can be used as the temperature of the outer surface of the contact part. The controller is in signal connection with the temperature sensor, and is mainly used to receive the temperature detection value feedback by the temperature sensor, and judge the temperature range to which the temperature detection value belongs, and then execute the corresponding cooling measure (pre-set in advance) when the detection value reaches the preset temperature range.

[0036] In this way, in the surface temperature detection control system provided by the present invention, when the user uses the smart wearable device for a long time, a large amount of heat inside the smart wearable device is transferred to the device housing, causing the temperature of the device housing to gradually rise. At the contact part of the device housing that contacts the human skin, the outer surface temperature of the contact part is monitored in real time by the temperature sensor, and when the temperature of the contact part rises to the preset temperature range, the controller timely executes the corresponding cooling measure, so as to quickly cool the contact part, control the outer surface temperature of the contact part within a certain range, prevent local skin in contact with the contact component from being scalded by low temperature due to too high temperature, and thus improve the user experience. Description of the Drawings

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0038] Figure 1 It is a system structure diagram of a specific implementation manner provided by the present invention.

[0039] Figure 2 It is a schematic diagram of the first installation structure of the contact part of the temperature sensor and the controller on the equipment housing.

[0040] Figure 3 It is a schematic diagram of the second installation structure of the contact part of the temperature sensor and the controller on the equipment housing.

[0041] Among them, Figure 1 — Figure 3 In:

[0042] Equipment housing - 1, temperature sensor - 2, controller - 3, first heat insulation board - 4, second heat insulation board - 5, heat conduction material layer - 6, heat dissipation plate - 7;

[0043] First execution module - 31, second execution module - 32, third execution module - 33, first timer - 34, second timer - 35, third timer - 36, fourth timer - 37, display sending module - 38, wireless communication module - 39;

[0044] Installation hole - 51;

[0045] Temperature control board - 201, detection chip - 202, signal cable - 203, connector - 204;

[0046] Main control board - 301, heating element - 302. Specific implementation manner

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0048] Please refer to Figure 1 , Figure 1 It is a system structure diagram of a specific implementation manner provided by the present invention.

[0049] In a specific embodiment provided by the present invention, the surface temperature detection control system mainly includes a temperature sensor 2 and a controller 3.

[0050] Among them, the temperature sensor 2 is arranged inside the device housing 1 of the smart wearable device, and is specifically attached to the inner surface of the contact part on the device housing 1 for contacting the human skin, and is mainly used to detect the outer surface temperature of the contact part. Since the outer surface of the contact part of the device housing 1 needs to be in close contact with the user's skin during use, the temperature sensor 2 arranged inside the device housing 1 can avoid affecting the normal wearing of the user; at the same time, since the thickness of the device housing 1 of the smart wearable device is usually very thin, and the heat inside the smart wearable device needs to be transferred from the inner surface of the contact part of the device housing 1 to the outer surface, the temperatures of the inner and outer surfaces of the contact part are basically the same, so that the temperature detection result of the inner surface of the contact part by the temperature sensor 2 can be used as the temperature of the outer surface of the contact part.

[0051] The controller 3 is in signal connection with the temperature sensor 2, and is mainly used to receive the temperature detection value fed back by the temperature sensor 2, judge the temperature range to which the temperature detection value belongs, and then execute the corresponding cooling measure (pre-set in advance) when the detection value reaches the preset temperature range.

[0052] In this way, for the surface temperature detection control system provided in this embodiment, when the user uses the smart wearable device for a long time, a large amount of heat inside the smart wearable device is transferred to the device housing 1, causing the temperature of the device housing 1 to gradually rise. And at the contact part on the device housing 1 that contacts the human skin, the outer surface temperature of the contact part is monitored in real time by the temperature sensor 2, and when the temperature of the contact part rises to the preset temperature range, the corresponding cooling measure is timely executed by the controller 3, so as to quickly cool the contact part, so as to control the outer surface temperature of the contact part within a certain range, prevent the local skin in contact with the contact part from being scalded by low temperature due to too high temperature, and thus improve the user experience.

[0053] To facilitate the detection of the outer surface temperature of the contact part on the device housing 1, in this embodiment, considering that the temperature sensor 2 is in signal connection with the controller 3 and also in electrical connection, for this reason, the temperature sensor 2 in this embodiment specifically uses a thermosensitive element whose electrical parameters change with temperature. Specifically, since the thermosensitive element is electrically connected to the controller 3 and the two are connected to the same circuit, the change in the electrical parameters of the thermosensitive element can be timely known by the controller 3; and after the controller 3 obtains the electrical parameter change data of the temperature sensor 2, it can match the temperature value according to the preset correspondence between temperature and electrical parameters, so as to accurately know the detection result of the temperature sensor 2.

[0054] Generally, the thermal component can specifically adopt NTC (Negative Temperature Coefficient) thermistors, PTC (Positive Temperature Coefficient) thermistors, etc. For the former, the resistance value decreases as the temperature increases, while for the latter, the resistance value increases as the temperature increases. With such a setting, the controller 3 can match the temperature value according to the change in the resistance value of the thermal component. At the same time, when the resistance value of the NTC thermistor or PTC thermistor changes, corresponding parameters such as voltage or current also change accordingly. Therefore, the controller 3 can also match the temperature value according to parameters such as the voltage value or current value of the thermal component.

[0055] In addition, to improve the detection accuracy of the controller 3 for the change in the electrical parameters of the thermal component, the change in the electrical parameters of the thermal component can also be amplified by a signal amplifier and then the amplified change in the electrical parameters is fed back to the controller 3.

[0056] Of course, in addition to the above-mentioned thermistors, the thermal component can also adopt components such as pyroelectric sensors and thermocouples.

[0057] In a specific embodiment regarding the controller 3, to facilitate the implementation of the cooling measures for each preset temperature range respectively, the controller 3 mainly includes a first execution module 31, a second execution module 32, and a third execution module 33. Correspondingly, in this embodiment, the detection values of the temperature sensor 2 are divided into 3 ranges, namely a low-temperature range, a medium-temperature range, and a high-temperature range. Obviously, the corresponding temperature value ranges of the three gradually increase. For example, the low-temperature range can specifically be 38 - 43 °C, the medium-temperature range can specifically be 43 - 48 °C, and the high-temperature range can specifically be above 48 °C. As for below 38 °C, since the temperature is close to the human body temperature, no intervention control is required.

[0058] Among them, when the detection value of the temperature sensor 2 reaches the low-temperature range and remains within the low-temperature range for a preset duration, the first execution module 31 issues an alarm to the user. For example, when the detection value of the temperature sensor 2 rises to the range of 38 - 43 °C and remains within this temperature range for more than 30 minutes, the first execution module 31 issues an alarm to the user in a timely manner through means such as sound and light alarms, reminding the user to pay attention and take measures.

[0059] If the power of the smart wearable device is too high, causing the device housing 1 to heat up too quickly, or if the user fails to notice or ignores the alarm issued by the first execution module 31, the detected value of the temperature sensor 2 will continue to rise. When the detected value of the temperature sensor 2 rises to the medium temperature range and remains within the medium temperature range for a preset duration, the second execution module 32 not only issues an alarm but also reduces the power consumption of the smart wearable device. For example, when the detected value of the temperature sensor 2 rises to the range of 43 - 48 °C and remains within this temperature range for more than 1 minute, the second execution module 32 issues an alarm to the user in a timely manner through means such as sound and light, and at the same time reduces the power consumption of the smart wearable device, such as reducing the chip frequency, reducing the chip voltage, reducing the display screen brightness, etc., so as to reduce the internal temperature of the smart wearable device by reducing the overall power consumption, thereby controlling the outer surface temperature of the contact part of the device housing 1. Of course, the execution order of the two measures of the second execution module 32, namely issuing an alarm and reducing power consumption, can also be different. For example, the alarm is issued only when the detected value of the temperature sensor 2 has remained within this temperature range for more than 5 minutes, while the power consumption reduction measure has been executed first.

[0060] When the detected value of the temperature sensor 2 reaches the high temperature range and remains within the high temperature range for a preset duration, the third execution module 33 shuts down the running program and / or power supply of the smart wearable device. For example, when the detected value of the temperature sensor 2 rises above 43 °C and remains within this temperature range for more than 1 minute, the third execution module 33 directly shuts down the program currently running on the smart wearable device, thereby releasing system resources, reducing the workload, and further significantly reducing power consumption and significantly reducing heat generation. At the same time, in an emergency, the third execution module 33 can also directly shut down the power supply of the smart wearable device, causing the entire machine to lose power and achieving rapid cooling of the entire machine. Of course, the execution order of the two measures of the third execution module 33, namely shutting down the running program and shutting down the power supply, can also be different. For example, the third execution module 33 can first shut down the running program, and if the detected value of the temperature sensor 2 still remains within the high temperature range for more than 3 minutes, then shut down the power supply.

[0061] Furthermore, to facilitate the implementation of the duration of the detected value of the temperature sensor 2 within the corresponding temperature range, a first timer 34, a second timer 35, and a third timer 36 are added in this embodiment.

[0062] Among them, the first timer 34 is in signal connection with the first execution module 31, and is mainly used to record the duration of the detection value of the temperature sensor 2 entering the low-temperature range. For example, when the detection value of the temperature sensor 2 just enters 38°C, the first timer 34 starts timing. At the same time, during the timing of the first timer 34, if the detection value of the temperature sensor 2 decreases to exit the low-temperature range for a preset duration (such as 3 minutes, etc.) due to factors such as the power reduction of the smart wearable device, the first timer 34 will reset the recording result and wait to start timing again when the temperature rises next time.

[0063] Similarly, the second timer 35 is in signal connection with the second execution module 32, and is mainly used to record the duration of the detection value of the temperature sensor 2 entering the medium-temperature range. For example, when the detection value of the temperature sensor 2 just enters 43°C, the second timer 35 starts timing. At the same time, during the timing of the second timer 35, if the detection value of the temperature sensor 2 decreases to exit the medium-temperature range for a preset duration (such as 3 minutes, etc.) due to factors such as the power reduction of the smart wearable device, the second timer 35 will reset the recording result and wait to start timing again when the temperature rises next time.

[0064] The third timer 36 is in signal connection with the third execution module 33, and is mainly used to record the duration of the detection value of the temperature sensor 2 entering the high-temperature range. For example, when the detection value of the temperature sensor 2 just enters 48°C, the third timer 36 starts timing.

[0065] Furthermore, considering that after the second execution module 32 reduces the power consumption of the smart wearable device, the programs currently running in the system may become stuck, and during this period, the temperature will surely drop appropriately. To ensure the user experience, a fourth timer 37 is added in this embodiment. Specifically, the fourth timer 37 is in signal connection with the second execution module 32, and is mainly used to record the duration of the detection value of the temperature sensor 2 exiting the medium-temperature range and being lower than the preset temperature value, so as to make the second execution module 32 restore the power consumption of the smart wearable device when the recording result reaches the preset threshold. For example, when the detection value of the temperature sensor 2 rises to 45°C and enters the medium-temperature range, the second execution module 32 executes the cooling measure of reducing power consumption, causing the detection value of the temperature sensor 2 to gradually decrease, exit the medium-temperature range, and be lower than 41°C for more than 1 minute, then the second execution module 32 restores the power consumption of the smart wearable device at this time to ensure the normal operation of the program in a short time.

[0066] In addition, considering that during the user's use of the smart wearable device, even if the first execution module 31 or the second execution module 32 issues an alarm, it may be ignored by the user or not attract enough attention. For this reason, a display sending module 38 and a wireless communication module 39 are added to the controller 3 in this embodiment.

[0067] Among them, the display sending module 38 is signal-connected to the first execution module 31 and the second execution module 32, and is mainly used for sending corresponding alarm information to the smart wearable device for display when the first execution module 31 or the second execution module 32 issues an alarm. For example, when the second execution module 32 issues an alarm, it indicates that the temperature of the contact part of the current device housing 1 is relatively high. At this time, the display sending module 38 sends the relevant information of the alarm issued by the second execution module 32 to components such as the optical engine on the smart wearable device for display, so as to facilitate the user to view and make it easier for the user to notice the alarm information.

[0068] Similarly, the wireless communication module 39 is signal-connected to the first execution module 31 and the second execution module 32, and is used for sending corresponding alarm information to the user's mobile smart device when the first execution module 31 or the second execution module 32 issues an alarm. For example, when the second execution module 32 issues an alarm, it indicates that the temperature of the contact part of the current device housing 1 is relatively high. At this time, the wireless communication module 39 sends the relevant information of the alarm issued by the second execution module 32 to the user's mobile smart device such as a mobile phone to remind the user through the mobile smart device and improve the reliability of the alarm.

[0069] In a specific embodiment of the controller 3, to facilitate the signal connection with the temperature sensor 2, the controller 3 is also arranged in the device housing 1 of the smart wearable device, and the hardware part of the controller 3 mainly includes a main control board 301 and a heating element 302 (such as a processor chip, various functional modules, etc.) arranged on the main control board 301. Correspondingly, the hardware part of the temperature sensor 2 mainly includes a temperature control board 201 and a detection chip 202 arranged on the temperature control board 201, and the temperature control board 201 mainly forms a signal connection with the main control board 301 of the controller 3 through connection components such as a signal cable 203 and a connector 204, so as to realize the signal communication between the controller 3 and the temperature sensor 2. Of course, the signal cable 203 can also be replaced with a flexible circuit board, etc., and the connector 204 can also be replaced with connection components such as a connection terminal, a connection elastic piece, and a Pogo pin.

[0070] Considering that within the device housing 1, due to factors such as limited installation space, the installation positions of the controller 3 and the temperature sensor 2 may be relatively close. The heating element 302 in the controller 3 generates a large amount of heat during operation, which may have an adverse effect on the normal operation or detected values of the temperature sensor 2. In response to this, a first heat insulation plate 4 is added in this embodiment. Specifically, the first heat insulation plate 4 is arranged within the device housing 1, specifically located between the heating element 302 of the controller 3 and the temperature sensor 2, mainly used to isolate the heat transfer from the heating element 302 to the temperature sensor 2, thereby preventing the heat of the heating element 302 from being transferred to the temperature sensor 2 and ensuring the normal operation of the temperature sensor 2 and the accuracy of the detected values.

[0071] As Figure 2 shown, Figure 2 FIG. is a schematic diagram of the first installation structure of the contact part of the temperature sensor 2 and the controller 3 on the device housing 1.

[0072] In the first specific embodiment regarding the temperature sensor 2, the temperature control board 201 of the temperature sensor 2 is specifically attached to the inner surface of the contact part of the device housing 1, and the detection chip 202 is arranged on the inner surface of the temperature control board 201 and faces the heating element 302. At this time, the first heat insulation plate 4 specifically covers the surfaces (i.e., the inner surfaces or inner sides) of the detection chip 202 and the temperature control board 201 facing the heating element 302. At the same time, considering that the heat of the heating element 302 may not only be transferred to the temperature sensor 2 but also directly to the contact part of the device housing 1, causing the temperature of the outer surface of the contact part of the device housing 1 to rise, making it difficult for the controller 3 to control. Therefore, the first heat insulation plate 4 also covers the inner surface of the contact part of the device housing 1, thereby preventing the heat of the heating element 302 from being transferred to the contact part of the device housing 1.

[0073] As Figure 3 shown, Figure 3 FIG. is a schematic diagram of the second installation structure of the contact part of the temperature sensor 2 and the controller 3 on the device housing 1.

[0074] In the second specific embodiment of the temperature sensor 2, to enhance the heat insulation effect between the inner surface of the contact part between the heating element 302 and the device housing 1, a second heat insulation plate 5 is added in this embodiment. The second heat insulation plate 5 is attached to the inner surface of the contact part of the device housing 1, and is specifically used to prevent the heat of the heating element 302 from being transferred to the contact part of the device housing 1. At the same time, after the second heat insulation plate 5 covers the inner surface of the contact part of the device housing 1, to avoid affecting the temperature detection of the contact part by the temperature sensor 2, an installation hole 51 is opened in the second heat insulation plate 5 in this embodiment, and the temperature sensor 2 is installed through the installation hole 51. Specifically, the temperature control board 201 of the temperature sensor 2 is attached to the inner side surface of the second heat insulation plate 5, and the detection chip 202 is embedded in the installation hole 51 of the second heat insulation plate 5, so as to realize the reverse installation of the temperature sensor 2. With such a setting, the detection chip 202 of the temperature sensor 2 still maintains close contact with the inner surface of the contact part of the device housing 1 in the installation hole 51 of the second heat insulation plate 5, thereby ensuring the accuracy of the detection data. Correspondingly, at this time, the first heat insulation plate 4 specifically covers the surface of the temperature control board 201 facing the heating element 302, and the covering area is usually larger than the area of the temperature control board 201 to prevent the heat of the heating element 302 from being transferred to the temperature control board 201.

[0075] Furthermore, considering that the detection chip 202 of the temperature sensor 2 is embedded in the installation hole 51 of the second heat insulation plate 5, if there is a gap between the detection chip 202 and the installation hole 51, the gap may be filled with air, and air is a heat insulation material, which may affect the temperature detection of the inner surface of the contact part of the device housing 1 by the detection chip 202. In response to this, in this embodiment, a heat-conducting material layer 6, such as heat-conducting gel, heat-conducting silica gel, heat-conducting silicone grease, etc., is filled in the installation hole 51 of the second heat insulation plate 5. The heat-conducting material layer 6 is easily deformed under extrusion and can tightly fill the gap between the inner wall of the installation hole 51 and the detection chip 202 (this gap is as small as possible under the premise of ensuring installability, such as about 0.2 mm), so as to enhance the heat conduction efficiency between the detection chip 202 and the contact part and minimize the difference between the temperature detection value and the outer surface temperature of the contact part.

[0076] In addition, considering that in addition to the heating element 302 of the controller 3, the heat of other heat sources in the smart wearable device may also be transferred to the contact part of the device housing 1, in order to prevent the formation of local hot spots in the contact part area of the device housing 1, a heat spreader 7 is added in this embodiment. Specifically, the heat spreader 7 is attached to the inner surface of the contact part of the device housing 1, and is mainly used to evenly disperse the heat transferred to the contact part on the inner surface of the contact part, so as to prevent the formation of local hot spots on the outer surface of the contact part and minimize the average temperature of the contact part. Generally, the heat spreader 7 can specifically be made of one or a combination of heat spreader materials such as graphite sheets (films), graphene sheets (films), copper foils, aluminum foils, heat pipes, VC, etc.

[0077] This embodiment also provides a smart wearable device, which mainly includes a device housing 1 and a surface temperature detection and control system. Since the surface temperature detection and control system adopts all the technical solutions of the above-mentioned embodiment of the surface temperature detection and control system, the smart wearable device provided in this embodiment also has all the technical effects brought by the technical solutions of the above-mentioned embodiment, which will not be elaborated here.

[0078] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A surface temperature detection and control system, characterized in that, It includes a temperature sensor (2) and a controller (3); The temperature sensor (2) is disposed inside the device housing (1) of the smart wearable device and attached to the inner surface of the contact part on the device housing (1) for contacting the human skin, and is used to detect the outer surface temperature of the contact part; The controller (3) is signal-connected to the temperature sensor (2) and is used to execute a cooling measure corresponding to the preset temperature range when the detected value of the temperature sensor (2) reaches the preset temperature range.

2. The surface temperature detection control system according to claim 1, wherein The temperature sensor (2) is a thermosensitive element whose electrical parameters change following the temperature, and the controller (3) matches the temperature value according to the electrical parameters of the temperature sensor (2) and the corresponding relationship between the preset temperature and the electrical parameters.

3. The surface temperature detection and control system according to claim 1, wherein, The controller (3) includes a first execution module (31), a second execution module (32), and a third execution module (33); When the detected value of the temperature sensor (2) reaches the low temperature range and remains within the low temperature range for a preset duration, the first execution module (31) issues an alarm; When the detected value of the temperature sensor (2) reaches the medium temperature range and remains within the medium temperature range for a preset duration, the second execution module (32) issues an alarm and reduces the power consumption of the smart wearable device; When the detected value of the temperature sensor (2) reaches the high temperature range and remains within the high temperature range for a preset duration, the third execution module (33) shuts down the running program and / or power supply of the smart wearable device; Wherein, the temperature values corresponding to the low temperature range, the medium temperature range, and the high temperature range increase gradually.

4. The surface temperature detection and control system according to claim 3, wherein The controller (3) further includes a first timer (34), a second timer (35), and a third timer (36); The first timer (34) is signal-connected to the first execution module (31) and is used to record the continuous duration of the detected value of the temperature sensor (2) entering the low temperature range, and zero its recording result when the detected value of the temperature sensor (2) exits the low temperature range for a preset duration; The second timer (35) is signal-connected to the second execution module (32) and is used to record the continuous duration of the detected value of the temperature sensor (2) entering the medium temperature range, and zero its recording result when the detected value of the temperature sensor (2) exits the medium temperature range for a preset duration; The third timer (36) is signal-connected to the third execution module (33) and is used to record the continuous duration of the detected value of the temperature sensor (2) entering the high temperature range.

5. The surface temperature detection control system according to claim 4, wherein The controller (3) further includes a fourth timer (37); The fourth timer (37) is signal-connected to the second execution module (32) and is used to record the continuous duration after the detected value of the temperature sensor (2) exits the medium temperature range and is lower than the preset temperature value, so as to make the second execution module (32) restore the power consumption of the smart wearable device when the recording result reaches the preset threshold.

6. The surface temperature detection and control system according to claim 3, wherein The controller (3) further includes a display sending module (38) and a wireless communication module (39); The display sending module (38) is signal-connected to the first execution module (31) and the second execution module (32), and is configured to send corresponding alarm information to the smart wearable device for display when an alarm is issued by the first execution module (31) or the second execution module (32); The wireless communication module (39) is signal-connected to the first execution module (31) and the second execution module (32), and is configured to send corresponding alarm information to the user's mobile intelligent device when an alarm is issued by the first execution module (31) or the second execution module (32).

7. The surface temperature detection control system according to any one of claims 1-6, characterized in that, The controller (3) is disposed inside the device housing (1), and the controller (3) includes a main control board (301) and a heating element (302) disposed on the main control board (301); It further includes a first heat insulation board (4) disposed inside the device housing (1), and the first heat insulation board (4) is located between the heating element (302) and the temperature sensor (2) for isolating the heat transfer of the heating element (302) to the temperature sensor (2).

8. The surface temperature detection control system according to claim 7, characterized in that The temperature sensor (2) includes a temperature control board (201) and a detection chip (202) disposed on the temperature control board (201). The temperature control board (201) is attached to the inner surface of the contact part, and the detection chip (202) faces the heating element (302); The first heat insulation board (4) covers the surfaces of the detection chip (202) and the temperature control board (201) facing the heating element (302), as well as the inner surface of the contact part.

9. The surface temperature detection control system according to claim 7, characterized in that, It further includes a second heat insulation board (5), and the second heat insulation board (5) is attached to the inner surface of the contact part for isolating the heat transfer of the heating element (302) to the contact part, and an installation hole (51) is formed on the second heat insulation board (5); The temperature sensor (2) includes a temperature control board (201) and a detection chip (202) disposed on the temperature control board (201). The temperature control board (201) is attached to the inner side surface of the second heat insulation board (5), and the detection chip (202) is embedded in the installation hole (51); The first heat insulation board (4) covers the surface of the temperature control board (201) facing the heating element (302).

10. The surface temperature detection control system according to claim 9, characterized in that, A heat conductive material layer (6) is filled between the inner wall of the installation hole (51) and the detection chip (202) for enhancing the heat conduction efficiency between the detection chip (202) and the contact part.

11. The surface temperature detection and control system according to claim 7, characterized in that, It further includes a heat pipe (7) attached to the inner surface of the contact part for evenly dispersing the heat transferred to the contact part on the inner surface of the contact part.

12. An intelligent wearable device, comprising a device housing (1), characterized in that, It further includes a surface temperature detection control system according to any one of claims 1-11.

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