WO2022242391A1

WO2022242391A1 - Wearable device

Info

Publication number: WO2022242391A1
Application number: PCT/CN2022/087393
Authority: WO
Inventors: 何谦; 张毅娜; 杨荣广; 张珂珉
Original assignee: 华为技术有限公司
Priority date: 2021-05-21
Filing date: 2022-04-18
Publication date: 2022-11-24
Also published as: CN115371844A

Abstract

A wearable device. The wearable device comprises a housing (1), a thermally conductive structure (6), an ambient temperature measurement module, and a skin patch-type temperature measurement module (4). The housing (1) comprises a first housing (101) and a second housing (102). The first housing (101) comprises a first surface (1011), the second housing (102) comprises a second surface, and the first surface (1011) and the second surface are connected by means of a connecting wall (1021). The thermally conductive structure (6) comprises a first thermally conductive end (601) and a second thermally conductive end (602), and the first thermally conductive end (601) is used to collect an ambient temperature. The ambient temperature measurement module is arranged at the second thermally conductive end (602), and the ambient temperature can be transmitted to the ambient temperature measurement module. The skin patch-type temperature measurement module (4) is arranged on the first surface (1011) of the first housing (101) and is used to collect a skin temperature. By using the wearable device, ambient temperature data measured by the ambient temperature measurement module and skin temperature data measured by the skin patch-type temperature measurement module (4) can be used as input amounts, and human body temperature data is obtained by means of an algorithm, which can effectively improve human body temperature measurement precision.

Description

a wearable device

Cross References to Related Applications

This application claims the priority of a Chinese patent application with application number 202110560247.9 and application title "A Wearable Device" submitted to the China Patent Office on May 21, 2021, the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the technical field of electronic equipment, in particular to a wearable equipment.

Background technique

With the rapid development of wearable devices, people have more and more requirements for the functions of wearable devices. Among them, the measurement of body temperature is a very practical function.

In the current wearable devices with body temperature measurement function, the measurement module can be contact type. When the contact-type measurement module is specifically set up, the temperature measurement can be realized by setting the temperature sensor on the housing of the wearable device. However, the contact-type measurement module is easily affected by the thermal conductivity of the housing and the temperature of the external environment, resulting in large measurement errors.

Contents of the invention

The present application provides a wearable device, which can realize the measurement of human body temperature, and its measurement accuracy has been effectively improved.

The present application provides a wearable device, and the wearable electronic device may include a housing, a heat conduction structure, an ambient temperature measurement module, and a skin-attached temperature measurement module. Wherein, the shell includes a first shell and a second shell, and the first shell and the second shell are fastened together to form an accommodating space of the shell. The first casing includes a first surface, the second casing includes a second surface, and the first surface and the second surface are connected by a connecting wall. The heat conduction structure includes a first heat conduction end and a second heat conduction end, the first heat conduction end is used to collect ambient temperature, and the second heat conduction end is located in the accommodation space. The ambient temperature measurement module is arranged on the second heat transfer end, and the ambient temperature collected by the first heat transfer end can be transmitted to the ambient temperature measurement module through the second heat transfer end to obtain ambient temperature data. The skin-attached temperature measurement module is located in the accommodation space of the casing, and is arranged on the first surface of the first casing, and is used for collecting skin temperature. Using the solution provided by this application, the heat conduction structure conducts the ambient temperature collected by the first heat conduction end to the second heat conduction end located in the accommodation space, and then conducts to the ambient temperature measurement module, forming a stable ambient temperature conduction path in the housing, so as to Less impact on the overall appearance of the device; the ambient temperature data measured by the environmental temperature measurement module and the skin temperature data measured by the skin-type temperature measurement module are used as input, and the human body temperature data is obtained through an algorithm, which can effectively increase the human body temperature measurement accuracy.

Since the wearable device is usually provided with a button, the button can be arranged on the connecting wall of the casing. In a possible implementation manner of the present application, the heat conduction structure may be a key, and the key may generally include a key cap and a key bar. The keycap can be arranged on the connecting wall to serve as the first heat conducting end for collecting ambient temperature. The key rod is fixedly connected to the key cap, and the key rod is located in the accommodation space, and the end of the key rod away from the key cap is used as the second heat conduction end for setting the ambient temperature measurement module. In this application, the acquisition of the ambient temperature through buttons can effectively simplify the structure of the wearable device; the environmental temperature measurement module is set in the housing, so that the environmental temperature measurement module can be protected by the housing.

When specifically setting the button, the button can be set as an integrated molding structure, and the molding method can be but not limited to multi-shot injection molding, multi-shot casting molding, three-dimensional additive manufacturing or powder metallurgy, etc., to improve the structural stability of the button. In addition, the key can also be configured as an assembled structure. At this time, the key cap and the key rod can be fixedly connected by, but not limited to, welding, bonding, riveting, clamping or threaded connection.

In a possible embodiment of the present application, the key cap and/or the key rod may be configured as an inner and outer layer structure. The inner and outer layer structure may include an inner layer portion and an outer layer portion, wherein at least one face of the inner layer portion may be in contact with the outer layer portion. The thermal conductivity of the material of the outer layer can be 35-200W/(m·K). In this way, the outer layer can not only have high thermal conductivity, but also have relatively reliable structural stability, so as to meet the requirements of the entire button. Requirements for structural strength. In addition, the surface of the outer layer can also have surface treatment features including but not limited to polishing, painting, brushing, or matte, so as to improve the appearance of the keypad. The thermal conductivity of the material of the inner layer can be 200-380W/(m·K), which is beneficial to improve the thermal conductivity of the entire button.

In a possible implementation of the present application, the key rod can be provided with a waterproof groove, and a first sealing member is installed in the waterproof groove, and the first sealing member has an interference fit with the key rod and the housing, thereby playing the role of a waterproof seal .

In a possible implementation of the present application, at least part of the keycap can protrude from the connecting wall to the outside of the housing, which can effectively increase the contact area between the keycap and the external environment, thereby helping to improve the accuracy of the button's collection of ambient temperature .

In addition, at least part of the key cap extends out of the housing, and the corresponding function can be controlled by pressing or rotating the key. When the key is a push key, the key may further include an elastic member, and the elastic member may be disposed on a side of the key cap facing the key rod. Moreover, the elastic member can elastically abut against the shell or the structural member disposed in the accommodation space.

In a possible implementation manner of the present application, the ambient temperature measurement module may include a first temperature sensor and a first circuit board assembly. The first circuit board assembly may include a first circuit board, the first temperature sensor may be disposed on the first circuit board, and the first temperature sensor is electrically connected to the first circuit board. The ambient temperature measurement module can receive the ambient temperature through the first temperature sensor and/or the first circuit board. In specific implementation, one of the first temperature sensor and the first circuit board can be fixed on the second heat conducting end. In this way, the ambient temperature collected by the first heat transfer end is transmitted to the second heat transfer end and then received by the ambient temperature measurement module. The heat conduction path is relatively short, which is beneficial to improve the measurement accuracy of the ambient temperature.

In order to improve the reliability of the connection between the ambient temperature measurement module and the button, in a possible implementation manner of the present application, the ambient temperature measurement module may further include a cover plate. The cover plate is sheathed in the assembly structure formed by connecting the first temperature sensor with the first circuit board and the end of the key rod away from the key cap. In addition, the cover plate can have an inner contour that matches the outline of the above assembly structure, so that the cover plate has better fixing and protection capabilities, and the space occupied by the cover plate in the housing space of the wearable device smaller.

In this application, in addition to using the button as a heat conduction member, in another possible implementation of this application, the heat conduction structure can also be set as an independent structure. When the heat conduction structure is specifically set, it can also include a The connection part of the first heat conduction end and the second heat conduction end. It can be understood that the heat conduction structure can be integrally formed to improve its structural stability.

The connecting wall of the housing can also be provided with a key slot for installing keys, and the first heat transfer end of the heat conduction structure can extend to the key slot for collecting ambient temperature. In addition, there is an avoidance space between the key and the first heat-conducting end, so as to avoid interference between the two when respectively realizing their functions.

In a possible implementation manner of the present application, a bracket may be provided on one side of the connecting wall of the casing located in the accommodation space, and the bracket may support the connecting wall, thereby improving the structural stability of the entire casing.

The connecting part of the heat conduction structure can be embedded in the bracket, which can reduce the occupation of the accommodating space by the arrangement of the heat conduction structure. In addition, by embedding the heat-conducting structure in the bracket, the bracket can also support the heat-conducting structure, which can reduce the consideration of the structural strength of the heat-conducting structure, so that the heat-conducting structure can be made of materials with high thermal conductivity to improve The accuracy of its temperature detection.

In another possible implementation of the present application, the connecting wall can also be used as a heat-conducting structure, then the side of the connecting wall outside the accommodation space can be used as the first heat-conducting end, and the side of the connecting wall inside the accommodation space can be used as the first heat-conducting end. the second heat-conducting end. It can effectively simplify the structure of the wearable device, and facilitate the collection of ambient temperature.

In a possible embodiment of the present application, foam may be mounted on the side of the ambient temperature measurement module away from the second heat-conducting end to protect the ambient temperature measurement module.

When the skin-attached temperature measurement module is specifically configured, it may include a second temperature sensor and a second circuit board assembly. The second circuit board assembly includes a second circuit board, the second temperature sensor can be arranged on the second circuit board, and the two are electrically connected.

The wearable device may also include a photoplethysmography lens disposed on the photoplethysmography lens. Additionally, the photoplethysmograph lens can be part of the first side of the housing of the wearable device. In this way, one of the second temperature sensor and the second circuit board can be fixed to the photoplethysmograph for collecting the skin temperature of the human body.

In a possible implementation of the present application, the thermal conductivity of the photoplethysmograph lens can be 35-55W/(m K), and its thermal conductivity is relatively high, which is conducive to improving the skin temperature collected by the skin-attached temperature measurement module accuracy.

Photoplethysmograph lenses can be divided into translucent and non-transmissive regions. In this way, the light emitted by the light source of the photoplethysmograph module can pass through the light-transmitting area and enter the human body, or the light reflected by the human body can be received by the photodetector of the photoplethysmograph module after passing through the light-transmitting area. In addition, by adjusting the position of the light source or the outgoing direction of the light emitted by the light source, as much light as possible can be transmitted through the light-transmitting area, thereby reducing energy loss and improving the detection accuracy of the photoplethysmograph module .

The skin-type temperature sensor can set the opaque area of the photoplethysmograph lens so that it does not block the light emitted or reflected by the light source.

In a possible implementation of the present application, the skin-attached temperature measurement module may further include a temperature measurement structure, the temperature measurement structure includes a heat conduction element, the heat conduction element includes a connected fixing part and a contact part, the fixing part is located in the accommodating space, and The fixing part is fixedly connected with the shell, so as to realize the fixed connection of the heat conducting element and the shell. In addition, one of the second temperature sensor and the second circuit board is fixed on a side of the fixing part away from the contact part. The first housing is provided with an installation hole, the installation hole runs through the first surface, and at least part of the contact portion protrudes from the installation hole to the outside of the housing. In this way, direct contact between the contact portion and human skin can be realized, which is beneficial to improve the measurement accuracy of the skin temperature.

A second sealing member may be provided on the contact portion, and the second sealing member may have an interference fit with the contact portion and the hole wall of the installation hole, so as to play the role of a waterproof seal.

In a possible implementation manner of the present application, the skin-attached temperature measurement module may include at least two temperature measurement modules, and the at least two temperature measurement modules are arranged at intervals. By setting at least two temperature measurement modules, multi-point measurement of skin temperature can be realized, which can improve the measurement accuracy of the skin temperature of the attached temperature measurement module through mutual calibration between the temperature measurement modules, thereby improving the wearable device. Human body temperature measurement accuracy.

Description of drawings

Fig. 1 is a calculation flow chart for obtaining human body temperature through an algorithm provided by an embodiment of the present application;

FIG. 2 is a graph of human body temperature obtained by an algorithm provided by an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a wearable device provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a button provided by an embodiment of the present application;

Fig. 5 is a schematic structural diagram of a wearable device provided by another embodiment of the present application;

Fig. 6a is a schematic cross-sectional structure diagram of a button provided by an embodiment of the present application;

Fig. 6b is a schematic cross-sectional structure diagram of a button provided by another embodiment of the present application;

FIG. 7 is a schematic diagram of an exploded structure of a wearable device provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of a partial structure of a wearable device provided by an embodiment of the present application;

Fig. 9 is a schematic structural diagram of a first housing provided by an embodiment of the present application;

Fig. 10 is an enlarged view of the local structure at B in Fig. 9;

Fig. 11 is a schematic diagram of a cross-sectional structure at C-C in Fig. 10;

Fig. 12 is a schematic structural diagram of a wearable device provided by another embodiment of the present application;

Fig. 13 is a schematic structural diagram of a first housing provided by another embodiment of the present application;

Fig. 14 is a schematic structural diagram of a wearable device provided by another embodiment of the present application;

Fig. 15 is a schematic diagram of an exploded structure of a temperature measuring structure provided by an embodiment of the present application;

Fig. 16 is a schematic structural diagram of a wearable device provided by another embodiment of the present application;

Fig. 17 is a schematic structural diagram of a wearable device provided by another embodiment of the present application;

Fig. 18 is a schematic structural diagram of a wearable device provided by another embodiment of the present application;

Fig. 19 is a schematic diagram of an exploded structure of a wearable device provided by another embodiment of the present application;

Fig. 20 is a schematic diagram of a partial structure of a wearable device provided by another embodiment of the present application;

Fig. 21 is a schematic structural diagram of a heat conduction structure provided by an embodiment of the present application;

Fig. 22a is a schematic structural diagram of a wearable device provided by another embodiment of the present application;

Fig. 22b is a schematic structural diagram of a wearable device provided by another embodiment of the present application;

Fig. 23 is a schematic diagram of a partial structure of a wearable device provided by another embodiment of the present application;

Fig. 24 is a schematic diagram of a partial structure of a wearable device provided by another embodiment of the present application.

Reference signs:

1-shell; 101-first shell; 1011-first surface; 1012-installation hole; 102-second shell; 1021-connecting wall;

1022-through hole; 103-accommodating space; 104-key slot; 105-bracket; 2-key; 2a-function key; 2b-dummy key;

201-key cap; 202-key bar; 2021-installation surface; 2022-waterproof groove; 2031a, 2031b-outer layer part;

2032a, 2032b-inner layer part; 204-elastic member; 205-first sealing member; 301-first temperature sensor;

302-the first circuit board assembly; 3021-the first circuit board; 3022-button rubber gasket; 3023-button shrapnel;

303-thermal adhesive; 304-cover plate; 305-adhesive material; 4-skin temperature measurement module; 401-second temperature sensor;

402-second circuit board assembly; 4021-second circuit board; 403-temperature measuring structure; 4031-heat conducting member; 40311-fixing part;

403111-stopping part; 40312-contact part; 40313-second seal; 5-PPG lens; 501-light transmission area;

502-non-light-transmitting area; 6-heat conduction structure; 601-first heat conduction end; 602-second heat conduction end; 603-connection part;

6031-hollow area; 7-foam.

Detailed ways

In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings.

In order to facilitate understanding of the wearable device provided by the embodiment of the present application, its application scenario is first described below. The wearable device may be, but not limited to, portable electronic devices such as smart watches and smart bracelets. Taking a smart watch as an example, it can be worn on the user's wrist to detect the user's body temperature and other physical signs at any time, so as to realize the prediction of the physical state, thereby effectively reducing the risk of dangerous diseases.

At present, the temperature measurement modules of smart watches with body temperature measurement functions can be divided into two categories: one is the non-contact temperature measurement module represented by infrared temperature measurement. The structure of the temperature measurement module is relatively complicated, the cost is high, and more space for setting up the temperature measurement module is required, so it is difficult to realize. In addition, the non-contact temperature measurement module based on infrared temperature measurement usually needs to occupy the space of the casing of the smart watch, so as to realize the emission of infrared light. And this will cause the non-contact temperature measurement module to affect the aesthetic appearance of the smart watch.

Another type of temperature measurement module can usually open a hole on the outer casing to place the temperature sensor in the hole; or extend the heat conduction column connected with the temperature sensor from the hole to realize the temperature control. Measurement. With this scheme, the measurement error is relatively large due to the difference in thermal conductivity of the shell and the large influence of the environment. In addition, by opening a hole on the casing and placing the temperature sensor in the hole, it is difficult to solve the waterproof problem of the wearable product. If the temperature sensor is wrapped by a seal, it will cause a large measurement error.

From the above introduction, it can be known that most of the current smart watches with temperature measurement modules measure the temperature of the human wrist skin. However, wrist skin temperature and human body temperature are not the same concept, and the measurement of wrist skin temperature is greatly affected by the ambient temperature. Therefore, wrist skin temperature cannot accurately reflect human body temperature.

Based on this, this application provides a wearable device, which can obtain More accurate human body temperature measurement results.

In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The terms used in the following examples are for the purpose of describing particular examples only, and are not intended to limit the application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "above", "the" and "this" are intended to also include such as "one or multiple" unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of the present application, "at least one" and "one or more" refer to one, two or more than two. The term "and/or" is used to describe the relationship between associated objects, indicating that there may be three relationships; for example, A and/or B may indicate: A exists alone, A and B exist at the same time, and B exists alone, Wherein A and B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship.

Reference to "one embodiment" or "some embodiments" or the like in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless specifically stated otherwise.

In this application, the algorithm used to calculate the temperature of the human body plays a crucial role in the temperature measurement function of the wearable device. When the wearable device provided by this application is in the development stage, the environmental temperature data collected by the environmental temperature measurement module for the same object at the same time, the skin data collected by the skin-type temperature measurement module for the same object at the same time, and Accurate human body temperature data, and consider the individual differences of the collected objects, such as age, gender, etc., to train the algorithm, and finally realize the function of the algorithm.

Referring to FIG. 1, FIG. 1 shows a calculation flow chart of obtaining human body temperature through an algorithm. It can be understood that in this algorithm, the ambient temperature data T1 measured by the environmental temperature measurement module and the skin temperature data T2 measured by the skin-type temperature measurement module are the input of the algorithm, while the human body temperature data T3 is the output of the algorithm quantity.

In addition, referring to FIG. 2 , FIG. 2 shows a human body temperature curve obtained by using the above algorithm in an embodiment of the present application. In Figure 2, the ambient temperature data T1 measured by the environmental temperature measurement module is represented by a curve with a prism, the skin temperature data T2 measured by a skin-type temperature measurement module is represented by a curve with a square, and the skin temperature data T2 measured by a skin-type temperature measurement module is represented by a curve with a triangle. The curve of represents the human body temperature data T3 obtained by the algorithm. It can be seen from Fig. 2 that, using the algorithm of the present application, the curve of the human body temperature data T3 obtained by calculating the corresponding sets of environmental temperature data T1 and skin temperature data T2 is relatively gentle, which proves the practicality of the algorithm sex and reliability.

After a preliminary understanding of the principle of the body temperature measurement of the wearable device provided by this application, the specific setting of the environmental temperature measurement module and the skin-type temperature measurement module in the wearable device will be introduced in conjunction with the accompanying drawings.

Referring to FIG. 3 , FIG. 3 is a schematic structural diagram of a wearable device provided by an embodiment of the present application. In this application, a smart watch is taken as an example to introduce the wearable device capable of body temperature measurement.

In the embodiment shown in FIG. 3 , the wearable device may include a housing 1 having a first housing 101 and a second housing 102 . Wherein, the first housing 101 and the second housing 102 are interlocked to form an accommodating space 103 of the housing 1 for accommodating the functional modules of the wearable device between the first housing 101 and the second housing 102 .

In addition, the first case 101 may include a first surface 1011 . In this application, the first surface 1011 may be the surface that contacts the human body when the wearable device is worn. The second housing 102 may include a second surface (not shown in the figure), which is disposed opposite to the above-mentioned first surface 1011 . In a possible embodiment of the present application, the second surface may be a surface of a display screen, and the display screen may be used to display the measurement results obtained by the functional modules of the wearable device. It can be understood that in FIG. 3 , in order to show the accommodation space 103 of the housing 1 , the display screen is omitted.

There is also a connecting wall 1021 between the first surface 1011 and the second surface, and the connecting wall 1021 is used for connecting the first surface 1011 and the second surface. In addition, the connecting wall 1021 can be disposed on the first casing 101 or on the second casing 102 . It can be understood that, in this application, the second surface and the connecting wall 1021 can be used as the appearance surface of the wearable device.

With continued reference to FIG. 3 , the wearable device may further include a button 2 . In an embodiment of the present application, the button 2 may be arranged on the outer surface of the wearable device. Exemplarily, it may be provided on the second surface or the connecting wall 1021 . In the embodiment shown in FIG. 3 , the button 2 is arranged on the connecting wall 1021 , which is beneficial to realize the narrow frame design of the display screen of the wearable device.

In the present application, when setting the key 2 specifically, reference may be made to FIG. 4 , which shows a schematic structural diagram of the key 2 according to an embodiment of the present application. The key 2 may include a key cap 201 and a key stem 202 which are connected. Wherein, the keycap 201 can be, but not limited to, circular, oval or rectangular. In addition, referring to FIG. 3 and FIG. 4 together, at least part of the key cap 201 protrudes from the connecting wall 1021 to the outside of the housing 1 and contacts with the external environment, so as to be used for the operation of the key 2 . The key bar 202 protrudes to the interior of the accommodation space 103 of the housing 1 , and can be used to connect with the functional modules in the accommodation space 103 .

The button 2 of the wearable device provided in this application can be set as a push button in the embodiment shown in FIG. 3 , so that the implementation of the corresponding function of the functional module can be controlled by pressing the button cap 201 . In some other embodiments, for example, in the wearable device shown in FIG. 5 , the key 2 can also be set as a rotation key, so as to control the realization of the corresponding function of the functional module by rotating the key 2 . It can be understood that the above are only some exemplary descriptions of the setting forms of the keys 2 of the present application, and in other embodiments of the present application, the keys 2 can also adopt other possible setting forms, such as including pressing keys and rotating keys at the same time performance, which will not be introduced here. In addition, an escape space is reserved in the accommodating space 103 for the linear reciprocating or rotating movement of the key. It should be understood that, in this application, there is no necessary connection between the shape of the key cap 201 and the specific arrangement form of the key 2, for example, the key 2 with the circular key cap 201 can be either a pressing key or a Rotary key; the key 2 with the oval keycap 201 can be either a push key or a rotary key. For ease of distinction, in the following embodiments of the present application, the key 2 that can be used to control the functional modules is marked as a function key 2a.

It can be known from the above introduction to the principle of body temperature measurement of wearable devices that the wearable device provided in this application may include an ambient temperature measurement module. In a possible embodiment, the ambient temperature measurement module can be integrated with the function button 2a of the wearable device.

During specific implementation, since the keycap 201 can be in contact with the external environment, in this embodiment, the keycap 201 can be made of a material with a high thermal conductivity, so that the keycap 201 can be used as the first heat conducting end to conduct heat with the external environment. Exchange, in order to achieve the purpose of collecting ambient temperature information. In a possible embodiment of the present application, the material of the keycap 201 can be metals such as aluminum, copper alloy or stainless steel, or non-metals such as ceramics with high thermal conductivity, sapphire or plastic with high thermal conductivity. In addition, in this application, the key bar 202 can also be made of a material with high thermal conductivity, which can also be metals such as aluminum, copper alloy or stainless steel, or non-metallic materials such as ceramics with high thermal conductivity, sapphire or plastic with high thermal conductivity. , so that heat can be transferred between the key cap 201 and the key bar 202 . It can be understood that, in this application, the materials of the key cap 201 and the key rod 202 may be the same or different, as long as heat can be efficiently transmitted between them.

Referring to FIG. 6a, FIG. 6a shows a schematic cross-sectional structure diagram of a function key 2a according to an embodiment of the present application. In this embodiment, the structure of the function key 2a may be the same as that of the key 2 shown in FIG. 4 above, and FIG. 6a shows the cross-sectional structure at A-A in FIG. 4 . The function button 2a can be formed in one piece, which can be formed by but not limited to multi-shot injection molding, multi-shot casting, three-dimensional additive manufacturing or powder metallurgy. In addition, the function key 2a can also be an assembled structure, wherein the key cap 201 and the key rod 202 can be fixedly connected by but not limited to welding, bonding, riveting, clamping or threaded connection.

In some embodiments of the present application, the key cap 201 and/or the key bar 202 may also adopt an inner and outer layer structure design. Exemplarily, in the embodiment shown in Fig. 6a, both the key cap 201 and the key rod 202 are designed with an inner and outer layer structure, and the inner and outer layer structures can be divided into: the outer layer is fully wrapped, the outer layer is half wrapped, and the outer layer is surface-mounted. tablets etc. In the embodiment shown in FIG. 6 a , the keycap 201 adopts a half-wrapped outer layer design, and the key rod 202 adopts a fully-wrapped outer layer design. Wherein, at least two surfaces of the inner layer part 2032a of the key cap 201 are in contact with the outer layer part 2031a, and at least one surface is located outside the outer layer part 2031a. The outer layer part 2031b of the key bar 202 forms a closed space, and the inner layer part 2032b is entirely surrounded by the outer layer part 2031b in the closed space. Then, when the key rod 202 adopts the design form of the outer layer fully wrapped, all surfaces of the inner layer part 2032b are not in contact with the external space or external parts.

In some other embodiments, both the key cap 201 and the key rod 202 may adopt a half-wrapped or fully-wrapped design. Its specific setting method is similar to the above-mentioned embodiment, and will not be repeated here.

Referring to FIG. 6 b , FIG. 6 b shows a schematic cross-sectional structural view of a key designed in the form of a surface mount by the key cap 201 . In this embodiment, only one surface of the inner layer portion 2032a of the key cap 201 is in contact with the outer layer portion 2031a, while the other surfaces are located outside the outer layer portion 2031a. In addition, it is worth mentioning that, in the embodiment shown in FIG. 6b, the key bar 202 adopts an integrated structural design, which can be formed by multi-shot injection molding, multi-shot casting, three-dimensional additive manufacturing or powder metallurgy. . In addition, the key bar 202 and the key cap 201 can be integrally formed, and the forming method can be but not limited to injection molding, multi-shot casting, three-dimensional additive manufacturing or powder metallurgy. Alternatively, the key rod 202 and the key cap 201 can be assembled by, but not limited to, welding, bonding, clamping or threaded connection.

It can be seen from the introduction of the above embodiments that the function key 2a provided by the present application can have high thermal conductivity. When the key cap 201 and/or the key rod 202 adopts the inner and outer layer structure design, the inner layer part 2032a corresponding to the key cap 201 and the inner layer part 2032a can be made The outer layer part 2031a, and/or the inner layer part 2032b and the outer layer part 2031b corresponding to the key bar 202 have higher thermal conductivity. During specific implementation, as an example, the outer layer portion 2031a of the key cap and/or the outer layer portion 2031b of the key rod 202 can be made of metals such as aluminum alloy, stainless steel or high thermal conductivity ceramics, sapphire or high thermal conductivity plastic with high thermal conductivity. and other materials. The thermal conductivity of the outer layer part 2031a and/or the outer layer part 2031b made of the above materials is about 35-200W/(m·K), which can make the outer layer part 2031a and/or the outer layer part 2031b have a higher In addition to thermal conductivity, it can also have relatively reliable structural stability, so as to meet the structural strength requirements of the entire function key 2a. In addition, the surface of the outer layer part 2031a and/or the outer layer part 2031b can also have surface treatment features including but not limited to polishing or painting or brushing or matte, so as to improve the appearance of the function key 2a.

As for the keycap 201, at least part of the inner layer portion 2032a can be covered by the outer layer portion 2031a. Similarly, for the key lever 202, at least part of the inner layer portion 2032b can be covered by the outer layer portion 2031b. Then the structural strength of the key cap 201 and the key bar 202 may have less influence on the structural stability of the entire function key 2a. Therefore, in this application, the inner layer part 2032a and the inner layer part 2032b can be made of copper or copper alloy with high thermal conductivity. Since the thermal conductivity of copper or copper alloy is about 200-380W/(m·K), its thermal conductivity is high, which is 5-10 times that of ordinary metal materials. Therefore, the inner layer part 2032a and the inner layer part 2032b of this material The thermal conductivity can reach 200-380W/(m·K). In this application, by setting the key cap 201 and/or the key rod 202 of the function key 2a as an inner and outer layer structure, the heat conduction efficiency of the entire key can be effectively improved.

In a possible embodiment of the present application, the molding method of the function button 2a may be, but not limited to, double-shot injection molding, double-shot casting injection molding, three-dimensional additive manufacturing, or powder metallurgy. Using the above molding method can realize the layered manufacturing of the material of the key cap 201 and/or the key rod 202, and can realize the combination of the inner layer part 2032a and the outer layer part 2031a, as well as the inner layer part 2032b and the outer layer part 2031b. In addition, the appearance effect, mechanical performance and high thermal conductivity performance of the function button 2a can also be guaranteed through post-stage numerical control processing, surface treatment and other processes.

In the above-mentioned embodiments, the functional key 2a is used as the assembly structure to introduce its specific design. In some other embodiments of the present application, the function key 2a can also be integrally formed. In this embodiment, if the key cap 201 and the key rod 202 adopt the design of the inner and outer layer structures, it is possible but not limited to make the inner layer of the key cap 201 The layer part 2032a and the inner layer part 2032b of the key bar 202 are integrally formed, and the outer layer part 2031a of the key cap 201 and the outer layer part 2031b of the key bar 202 are also integrally formed, which can effectively simplify the structure of the key and Processing technology, thereby improving the processing efficiency of keys.

Referring to FIG. 7 , FIG. 7 shows a schematic diagram of an exploded structure of a wearable device according to another embodiment of the present application. In order to facilitate the description of the connection and positional relationship between the ambient temperature measurement module and the function button 2a, the housing of the wearable device is omitted in FIG. 7 . In this embodiment of the present application, the ambient temperature measurement module is arranged in the accommodation space 103 of the housing 1 of the wearable device as shown in FIG. Structural reliability of wearable devices. In addition, the ambient temperature measurement module may include a first temperature sensor 301 and a first circuit board assembly 302 . Wherein, the first temperature sensor 301 can be fixed on the end of the key bar 202 away from the key cap 201 , so that the end of the key bar 202 away from the key cap 201 serves as the second heat conducting end. It can be understood that, the part of the key bar 202 used for connecting the first heat conducting end and the second heat conducting end can be used as a connecting part. In this way, the ambient temperature collected by the key cap 201 serving as the first heat-conducting end can be transmitted to the second heat-conducting end through the connection portion of the key rod 202 , and then to the first temperature sensor 301 disposed on the second heat-conducting end. In order to improve the heat conduction efficiency between the first temperature sensor 301 and the key bar 202 , the first temperature sensor 301 can be bonded and fixed to the end of the key bar 202 through a thermally conductive glue 303 .

With continued reference to FIG. 7 , a flat mounting surface 2021 of a certain size may be provided at the end (second heat conduction end) of the key bar 202 away from the key cap 201 , which may be the mounting surface 2021 of the first temperature sensor 301 on the key bar 202 . The installation provides an installation plane, so as to facilitate the installation and fixing of the first temperature sensor 301 . In addition, the area of the installation plane can also be adjusted to increase the contact area between the second heat-conducting end and the first temperature sensor 301, thereby improving the accuracy of the ambient temperature received by the first temperature sensor 301.

7, the first circuit board assembly 302 can include a first circuit board 3021, the first circuit board 3021 exemplary can be a flexible printed circuit (flexible printed circuit, FPC), which can facilitate the first circuit board 3021 Layout within the housing 1 of the wearable device. It can be understood that, in some possible embodiments of the present application, the first circuit board 3021 may also be a printed circuit board (printed circuit boards, PCB), and its exemplary accommodating space 103 applicable to the housing 1 is more abundant of wearable devices.

The first circuit board 3021 is electrically connected to the first temperature sensor 301 , and the ambient temperature signal detected by the first temperature sensor 301 can be transmitted to the first circuit board 3021 . Wherein, in the embodiment shown in FIG. 7 , the first circuit board 3021 may be disposed on the side of the first temperature sensor 301 away from the key bar 202 . However, in some other embodiments of the present application, the first circuit board 3021 can also be arranged between the first temperature sensor 301 and the key bar 202 , at this time, the first circuit board 3021 can be fixed to the key bar 202 through the heat-conducting glue 303 . In this application, by arranging the first temperature sensor 301 and the first circuit board 3021 at the end of the key bar 202 away from the key cap 201, the outer shell of the wearable device can be used to provide support for the first temperature sensor 301 and the first temperature sensor 301. The protective function of the circuit board 3021 can effectively improve the stability of the ambient temperature measurement module for ambient temperature collection.

The above-mentioned embodiment is only an exemplary illustration of the relative positional relationship between the first circuit board 3021 , the first temperature sensor 301 and the key bar 202 . In addition, those skilled in the art can make a reasonable layout according to the type of the selected first temperature sensor 301 and the connection process between the first temperature sensor 301 and the first circuit board 3021, but all should It should be understood as falling within the protection scope of the present application.

In addition, on the first circuit board 3021, there may be but not limited to be provided with a button rubber gasket 3022 and a button elastic piece 3023, wherein the button rubber gasket 3022 can be used to play a buffering role, and the button elastic piece 3023 can be used as a button for the function button 2a. switch.

In a possible embodiment of the present application, in order to stably connect the first circuit board 3021 , the first temperature sensor 301 and the key bar 202 , the ambient temperature measurement module may further include a cover plate 304 . It can be seen from FIG. 7 that the cover plate 304 can lock and fix the assembled first circuit board 3021 , the first temperature sensor 301 and the key bar 202 . During specific implementation, the cover plate 304 may have an inner contour matching the outer contour of the assembled structure formed by connecting the first circuit board 3021 , the first temperature sensor 301 and the end of the key rod 202 away from the keycap 201 . In this way, the cover plate 304 can be sleeved on the assembly structure, so that the cover plate 304 has better fixing and protection capabilities, and the cover plate 304 is placed in the housing space 103 of the housing 1 of the wearable device as shown in FIG. 3 takes up less space inside. It is worth mentioning that, in the embodiment of the present application, the cover plate 304 can be, but not limited to, an injection molded part obtained through an injection molding process, or a metal part obtained through a metal processing process (such as stamping, etc.). The processing technology and material of the cover plate 304 are not limited in this application.

In addition, referring to FIG. 7 , in a possible embodiment of the present application, the cover plate 304 can also be bonded to at least one of the first circuit board 3021 , the first temperature sensor 301 and the key bar 202 through an adhesive material 305 . This can effectively improve the connection reliability of the structure formed by assembling the cover plate 304 with the first circuit board 3021 , the first temperature sensor 301 and the key bar 202 .

Referring to FIG. 8 , FIG. 8 is a schematic diagram of a partial structure of the function key 2 a and the ambient temperature measurement module shown in FIG. 7 after being installed in the housing 1 . 8 shows the relative positional relationship between the button rubber gasket 3022 and the button elastic sheet 3023 and the function button, wherein the button rubber gasket 3022 can be located between the function button and the button elastic sheet 3023 to play a buffering role.

Continuing to refer to FIG. 8 , in some embodiments of the present application, a waterproof groove 2022 may also be provided on the key bar 202 of the function key 2 a , and the waterproof groove 2022 may be an annular groove surrounding the key bar 202 . In addition, a first sealing member 205 may be installed in the waterproof groove 2022, and the first sealing member 205 may be, but not limited to, an annular rubber ring as shown in FIG. 4 . It can be understood that the first sealing member 205 can be interference-fitted with the key bar 202 and the side wall of the housing 1 or the structural components in the accommodation space of the housing 1 , so as to be able to play the role of a waterproof seal. Wherein, the interference fit between the first sealing member 205 and the key bar 202 and the side wall of the housing 1 or the structural components in the housing 1 may be, but not limited to, interference fit, abutting or embedding.

It is worth mentioning that, in the embodiments shown in Fig. 7 and Fig. 8, the function key 2a can be set as a push key. Wherein, the key can also include an elastic member 204, which can be arranged on the side of the key cap 201 facing the key bar 202, and the elastic member 204 can be but not limited to be elastically connected to the shell 1 or a structural member arranged in the accommodating space. When the function button 2a is pressed, the elastic member 204 accumulates elastic force, and when the function button 2a is released, the elastic member 204 releases the elastic force, thereby pushing the function button 2a to reset. In addition, the elastic member 204 may be, but not limited to, a spring, and the elastic coefficient and number of the springs may be designed according to specific elastic requirements.

From the above introduction to the shell 1 of the wearable device, it can be known that in this application, the first surface 1011 of the first shell 101 of the shell 1 can be used as the surface of the wearable device in contact with the human body, and the skin-type temperature measurement module It can be used to measure the skin temperature of the human body, so the skin-attached temperature measurement module can be arranged in the first housing 101 .

Referring to FIG. 9 , FIG. 9 provides a schematic structural diagram of a first housing 101 according to an embodiment of the present application. In this embodiment, the wearable device is provided with a photoplethysmograph (photoplethysmograph, PPG) module, and the PPG module includes a PPG lens 5 (PPG lens) arranged on the first housing 101 . In this application, the specific shape of the PPG lens 5 is not limited. Exemplarily, the PPG lens 5 may be circular, rectangular, or any other regular or irregular shape.

In the embodiment of the present application, the PPG lens 5 is inlaid or bonded to the first housing 101 , and the PPG lens 5 can be used as a part of the first surface 1011 for contacting the skin of the wearing part. And because the material of the PPG lens 5 can usually be sapphire, the thermal conductivity of sapphire is better, and its thermal conductivity is about 35-55W/(m·K). Therefore, in this embodiment of the present application, the PPG lens 5 can be used for collecting skin temperature. In addition, in this application, the specific setting position of the PPG lens 5 on the first casing 101 is not limited. For example, it can be set at the center of the first casing 101 to effectively increase the distance between the PPG lens 5 and the first casing 101. The contact area of the wearing part can improve the accuracy of skin temperature collection.

In a possible embodiment of the present application, the skin-attached temperature measurement module 4 can be arranged on the PPG lens 5, so that the human skin temperature information can be efficiently transmitted to the skin-attached temperature measurement module 4 through the PPG lens 5 without increasing heat conduction. Columns and other heat-conducting structures 6 can effectively simplify the structure of the wearable device.

Referring to FIG. 10 , FIG. 10 is an enlarged view of the local structure at B in FIG. 9 . In this embodiment, the skin-type temperature measurement module 4 may include a second temperature sensor 401 and a second circuit board assembly 402 . Wherein, the second temperature sensor 401 can be arranged on the PPG lens 5 , so that the skin temperature collected by the PPG lens 5 can be efficiently transmitted to the second temperature sensor 401 . In order to improve the heat conduction efficiency between the second temperature sensor 401 and the PPG lens 5 , the second temperature sensor 401 can be bonded and fixed to the PPG lens 5 through the heat conduction glue 303 .

Continuing to refer to FIG. 10 , in some other embodiments of the present application, the PPG lens 5 can also be divided into a light-transmitting area 501 and a non-light-transmitting area 502 . In this way, the light emitted by the light source of the PPG module can pass through the light-transmitting area 501 and enter the human body, or the light reflected by the human body can be received by the photodetector of the PPG module after passing through the light-transmitting area 501 . In addition, by adjusting the position of the light source or the outgoing direction of the light emitted by the light source, as much light as possible can be transmitted through the light-transmitting region 501, thereby reducing energy loss and improving the detection accuracy of the PPG module.

It can be understood that, in the embodiment of the present application, the second temperature sensor 401 can be arranged in the non-transparent area 502 of the PPG lens 5, so as to prevent the second temperature sensor 401 from blocking the light emitted or reflected by the light source.

When specifically setting the second circuit board assembly 402 , reference may be made to FIG. 10 . The second circuit board assembly 402 can include a second circuit board 4021, and the second circuit board 4021 can be a flexible circuit board (flexible printed circuit, FPC) illustratively, which can facilitate the second circuit board 4021 shown in Figure 3 Layout within the housing 1 of the wearable device. It can be understood that, in some possible embodiments of the present application, the second circuit board 4021 can also be a printed circuit board (printed circuit boards, PCB), and its example can be applied to the accommodating space 103 of the housing 1 with ample of wearable devices.

Referring to FIG. 11 , FIG. 11 shows a schematic cross-sectional structure at C-C in FIG. 10 . In this embodiment of the present application, the second circuit board 4021 is electrically connected to the second temperature sensor 401 . Wherein, in the embodiment shown in FIG. 11 , the second circuit board 4021 may be disposed on the side of the second temperature sensor 401 away from the PPG lens 5 . However, in some other embodiments of the present application, the second circuit board 4021 can also be arranged between the second temperature sensor 401 and the PPG lens 5, and at this time, the second circuit board 4021 can be fixed to the PPG lens 5 through the thermal conductive glue 303 . The above-mentioned embodiment is only an exemplary illustration of the relative positional relationship between the second circuit board 4021 , the second temperature sensor 401 and the PPG lens 5 . In addition, those skilled in the art can make a reasonable layout according to the type of the selected second temperature sensor 401 and the connection process between the second temperature sensor 401 and the second circuit board 4021, but all should be It should be understood as falling within the protection scope of the present application.

It is worth mentioning that, the second circuit board 4021 may also be provided with but not limited to a button rubber gasket to buffer the second circuit board 4021 .

In addition, in some possible embodiments, the second circuit board 4021 can be the same circuit board as the first circuit board 3021 in the above-mentioned embodiment, so as to effectively simplify the structure of the wearable device and make the accommodation space of the housing 1 103 has extra space for installing other functional modules, so as to realize the multifunctional design of the wearable device.

It can be understood that the PPG lens and the skin-attached temperature measurement module 4 provided in the above embodiment can not only be set outside the wearable device whose first casing 101 is in the shape shown in FIG. Figure 12 shows the shape of the wearable device. In addition, referring to FIG. 13, FIG. 13 shows the structure of the first housing 101 of the wearable device shown in FIG. The embodiment shown in FIG. 9 will not be described in detail here.

Referring to FIG. 14 , FIG. 14 shows the arrangement of the skin-attached temperature measurement module 4 in another possible embodiment of the present application. In this embodiment, the setting of the skin-attached temperature measurement module 4 does not depend on the design of the PPG lens 5 . During specific implementation, the skin-attached temperature measurement module 4 may include one temperature measurement structure 403; or at least two temperature measurement structures 403, as shown in FIG. The surrounding sides of the lens 5 are arranged at intervals. The arrangement can be, but not limited to, arranged symmetrically or arranged in a matrix. In this way, algorithm optimization can be realized through multi-point measurement of skin temperature, thereby improving the accuracy of human body temperature measurement.

Referring to FIG. 15 , FIG. 15 is a schematic structural diagram of a temperature measuring structure 403 in a possible embodiment of the present application. Wherein, the temperature measuring structure 403 may include a heat conduction element 4031 , and the heat conduction element 4031 includes a fixing portion 40311 and a contact portion 40312 . Wherein, the fixed part 40311 and the contact part 40312 can be integrally formed; or the fixed part 40311 and the contact part 40312 are independent structures, and the two can be formed by but not limited to double-shot injection molding, double-shot injection molding, multi-shot casting Forming, 3D additive manufacturing or powder metallurgy for joining. Alternatively, it can be assembled by bonding, welding or threaded connection. In addition, the fixing part 40311 and the contact part 40312 can be made of a single material, or arranged as an inner and outer layer structure. When it adopts the inner and outer layer structure design, its specific setting method and material selection can refer to the introduction of the function keys adopting the inner and outer layer structure design in the above-mentioned embodiments, and will not be repeated here.

In this embodiment of the present application, the fixing part 40311 can be used for fixed connection with the housing 1 of the wearable device shown in FIG. It can be understood that when the heat conduction element 4031 is installed in the housing 1, the fixing part 40311 can be located in the accommodation space 103 of the housing 1 (refer to FIG. 3 ), and the fixing part 40311 is fixedly connected with the housing 1, for example, the fixing part 40311 can be fixed with one side of the first surface 1011 located in the receiving space 103 .

In addition, referring to FIG. 14 and FIG. 15 together, an installation hole 1012 may be opened on the first casing 101 , and the installation hole 1012 penetrates through the first surface 1011 . At least part of the contact portion 40312 protrudes from the installation hole 1012 to the outside of the housing 1 for contacting the skin of the wearing part. With continued reference to FIG. 15 , a second seal 40313 may also be provided on the contact portion 40312 , and the second seal 40313 may be, for example, an annular rubber ring. The second sealing member 40313 can be interference-fitted with the contact portion 40312 and the wall of the installation hole 1012 , so as to achieve a waterproof sealing effect. It can be understood that, in this embodiment of the present application, the part of the first housing 101 used for setting the heat conduction element 4031 can be made of a material with a low thermal conductivity such as plastic, so as to reduce its impact on the heat conduction element 4031 The impact of temperature acquisition.

The temperature measuring structure 403 may further include a second circuit board 4021 , and the second circuit board 4021 is fixed on the side of the fixing part 40311 away from the contact part 40312 through the thermally conductive glue 303 . In addition, a second temperature sensor 401 is disposed on the second circuit board 4021 , and the second temperature sensor 401 can be fixed on the second circuit board 4021 by, but not limited to, thermally conductive glue 303 . In this way, the skin temperature collected through the contact part 40312 can be transmitted to the second temperature sensor 401 through the fixing part 40311 and the second circuit board 4021 . Continuing to refer to FIG. 15 , in some possible embodiments of the present application, the second circuit board 4021 can also be connected to the contact part 40312 and the fixed part 40311 through the thermal conductive glue 303, so that the skin temperature collected through the contact part 40312 It is directly transmitted to the second circuit board 4021, so as to improve the accuracy of temperature measurement.

In another possible embodiment of the present application, the second temperature sensor 401 may also be fixed to the heat-conducting member 4031 through the heat-conducting glue 303 , and the second circuit board 4021 is fixed to the second temperature sensor 401 through the heat-conducting glue 303 . Those skilled in the art can make a reasonable layout according to the type of the selected second temperature sensor 401 and the connection process between the second temperature sensor 401 and the second circuit board 4021, but they should all be understood as falling within this scope. within the scope of the application.

Continuing to refer to FIG. 15 , a stopper portion 403111 may also be provided on a side of the fixing portion 40311 of the heat conducting member 4031 away from the contact portion 40312 . The stoppers 403111 can be two opposing ones, and the structure connected to the heat conducting member 4031 such as the second temperature sensor 401 and the second circuit board 4021 mentioned above can be arranged between the two stoppers 403111, so as to realize two Positioning of the temperature sensor 401 and the second circuit board 4021 on the fixing part 40311 .

It can be known from the above description of the temperature measuring structure 403 that, in some embodiments of the present application, each temperature measuring structure 403 may be provided with a second circuit board 4021 and a second temperature sensor 401 correspondingly. In some other embodiments, each temperature measuring structure 403 can also be provided with a second temperature sensor 401 correspondingly, and at least two temperature measuring structures 403 can share a second circuit board 4021, which can effectively simplify skin application. The structure of the measurement module. By using multiple temperature measuring structures 403 to measure the skin temperature at the same time, the accuracy of skin temperature measurement can be effectively improved, thereby improving the accuracy of human body temperature measurement.

It can be understood that, in the embodiments shown in FIG. 14 and FIG. 15 , the contact portion 40312 of the temperature measuring structure 403 is designed with a rectangular outline. In some other embodiments of the present application, the contact portion 40312 can also be designed with a multi-segment circular arc profile as shown in Figure 16, or a circular profile design as shown in Figure 17, of course, other shapes such as petals can also be used. The outline design of the shape is not listed here.

In the above embodiments of the present application, the buttons used to set the ambient temperature measurement module can be operated by pressing or rotating to realize the control of the functional modules of the wearable device. In some other possible embodiments of the present application, the buttons for connecting with the ambient temperature measurement module may be designed separately. In this embodiment, the button is not connected to any other functional modules except for collecting the ambient temperature. Pressing or rotating the button cannot be used to realize any function. In this application, this button can be called "false keys".

In order to improve the aesthetic appearance of the wearable device and avoid interference with the operation of the function keys, the length of the part of the key cap 201 of the dummy key 2 b protruding to the outside of the housing 1 can be reduced. For example, reference can be made to FIG. 18 , which shows the setting method of the dummy button 2 b in the wearable device according to an embodiment of the present application. In this embodiment, the surface of the key cap 201 of the dummy key 2b can be designed to adapt to the surface contour of the connecting wall 1021 of the housing 1, so as to improve the continuity of the surface contour of the wearable device and improve its appearance.

Referring to FIG. 19 , FIG. 19 is a schematic diagram of an exploded structure of the wearable device shown in FIG. 18 . In this embodiment, no elastic element may be provided on the key cap 201, thereby simplifying the structure of the wearable device. The structural form and material selection of the key cap 201 and key bar 202 of the dummy key 2b can be set with reference to the function keys in the above embodiments, and will not be repeated here.

Continuing to refer to FIG. 19 , a through hole 1022 can also be opened on the connecting wall 1021 , and the key rod 202 of the dummy key 2 b can extend into the accommodation space 103 through the through hole 1022 . In some embodiments of the present application, the length of the key bar 202 protruding into the accommodation space 103 can also be shortened as much as possible. In specific implementation, as shown in FIG. 20 , FIG. 20 is the wearable device shown in FIG. 18 Schematic diagram of the local structure. In this embodiment, the key cap 201 and/or the key bar 202 can be miniaturized, which can reduce the occupation of the accommodating space 103 by the dummy key 2b.

It can be understood that the ambient temperature measurement module, the skin-attached temperature measurement module, and the method for realizing human body temperature measurement in the embodiments shown in Fig. 18 to Fig. 20 can be set with reference to any of the above-mentioned embodiments, here No further elaboration.

Through the introduction of the specific setting method of the ambient temperature measurement module in the wearable device in the above-mentioned embodiments, it can be known that as long as the ambient temperature can be conducted to the ambient temperature measurement module through a heat conduction structure, the ambient temperature measurement module can realize the control of the ambient temperature. Obtain. Based on this, in addition to the buttons (function buttons or dummy buttons) in the above-mentioned embodiments, the heat-conducting structure can also be hidden in the shell in some other embodiments of the present application, so as to avoid affecting the appearance of the wearable device .

For specific implementation, refer to FIG. 21 , which shows a schematic structural diagram of a heat conducting structure 6 in a possible embodiment of the present application. In this embodiment, the heat conduction structure 6 may include a first heat conduction end 601 , a second heat conduction end 602 , and a connecting portion 603 for connecting the first heat conduction end 601 and the second heat conduction end 602 . Wherein, the first heat-conducting end 601 can be used to collect ambient temperature, so that the ambient temperature can be conducted from the first heat-conducting end 601 to the second heat-conducting end 602 through the connecting portion 603 along the arrow shown in FIG. 21 .

In this embodiment of the present application, the heat conduction structure 6 can be an integrally formed structure, or can be designed with an inner and outer layer structure. The specific setting method and material selection can refer to the function keys introduced in the above embodiment, and will not be repeated here. .

When disposing the heat conducting structure 6 on the housing 1, reference may be made to FIG. 22a, which is a schematic structural diagram of a wearable device according to another embodiment of the present application. The first heat-conducting end 601 of the heat-conducting structure 6 can extend into the connecting wall 1021 of the casing 1, so that the ambient temperature collected by the first heat-conducting end 601 is closer to the external ambient temperature of the wearable device, thereby improving the temperature of the wearable device. Accuracy of body temperature measurement.

Referring to FIG. 22 a , in the embodiment shown in FIG. 22 a , the first heat-conducting end 601 extends into the key slot 104 of the casing 1 for installing keys (function keys or dummy keys). It can be understood that, in this embodiment, an avoidance space for avoiding the first heat-conducting end 601 can be provided in the key groove 104, so as to avoid interference between the key and the first heat-conducting end 601, so that the key and the first heat-conducting end 601 can be avoided. The terminals 601 can be used to realize their respective functions. In addition, by arranging the first heat-conducting end 601 in the key groove 104 , the structure and processing technology of the housing 1 can be effectively simplified.

Since the first heat-conducting end 601 of the heat-conducting structure 6 can extend into the key groove 104 , the second heat-conducting end 602 is located in the receiving space 103 . Referring to Fig. 21 and Fig. 22a together, in a possible embodiment of the present application, a hollow area 6031 may also be provided at the connecting portion 603 of the heat conduction structure 6, and the hollow area 6031 may be used to avoid the key bar of the key. In this way, interference with the operation of the keys is avoided. In addition, in the embodiment shown in FIG. 21 and FIG. 22a, the first heat conduction end 601 can also be set to two, and the two first heat conduction ends 601 are separately arranged on both sides of the hollowed out area 6031, so as to increase the thermal conductivity of the heat conduction structure 6. The area used for contact with the external environment improves the accuracy of ambient temperature collection.

Referring to Fig. 22b, Fig. 22b shows the structure of the wearable device at another angle. The second heat-conducting end 602 of the heat-conducting structure 6 can extend to the interior of the accommodation space 103 of the housing 1, and the ambient temperature measurement module can be fixed on the second heat-conducting end 602, so that the ambient temperature collected by the first heat-conducting end 601 can be connected The portion 603 and the second heat-conducting end 602 are transmitted to the ambient temperature measurement module. In order to improve the heat conduction efficiency between the ambient temperature measurement module and the second heat conduction end 602 , the environment temperature measurement module can be bonded and fixed to the second heat conduction end 602 with heat conduction glue. In addition, referring to FIG. 22b, a flat installation surface of a certain size can also be provided on the second heat conducting end 602, which can provide an installation plane for the installation of the ambient temperature measurement module on the heat conducting structure 6, thereby facilitating the realization of The installation and fixing of the ambient temperature measurement module.

It is worth mentioning that, in order to improve the structural stability of the housing 1 of the wearable device and facilitate the setting of the functional modules in the accommodation space 103, referring to FIG. A bracket 105 may also be provided on one side, and the bracket 105 is fixedly connected to the connecting wall 1021 so that the bracket 105 can support the connecting wall 1021 .

Referring to FIG. 23 , FIG. 23 shows the relative positional relationship between the heat conducting structure 6 , the connecting wall 1021 and the bracket 105 . Wherein, the connection portion of the heat conduction structure 6 can be embedded in the support 105 , so that the connection portion of the heat conduction structure 6 is hidden in the support 105 , which can reduce the occupation of the accommodating space 103 by the arrangement of the heat conduction structure 6 . In addition, by embedding the heat conduction structure 6 in the support 105, the support 105 can also support the heat conduction structure 6, which can reduce the consideration of the structural strength of the heat conduction structure 6, so that the heat conduction structure 6 can be selected with a higher thermal conductivity. material to improve the accuracy of its temperature detection. It can be understood that, in order to hide the heat conduction structure 6 in the connection wall 1021 and the bracket 105, the heat conduction structure 6 can be made by but not limited to insert injection molding.

In the embodiment shown in FIG. 23 , the first circuit board 3021 of the ambient temperature measurement module can be fixed to the second heat-conducting end 602 through a heat-conducting adhesive 303 , and the first temperature sensor 301 is arranged on the first circuit board 3021 away from the second heat-conducting end. side of end 602. In addition, foam 7 is mounted on the surface of the first temperature sensor 301 away from the second heat-conducting end 602, and the foam 7 can protect and dampen the entire ambient temperature measurement module. In some other embodiments, the first temperature sensor 301 can also be fixed to the second heat-conducting end 602 through the heat-conducting adhesive 303, and the first circuit board 3021 is arranged on a side of the first temperature sensor 301 away from the second heat-conducting end 602. At this time, the foam 7 can be disposed on the side of the first circuit board 3021 away from the second heat-conducting end 602 . It can be understood that, in this application, the relative positional relationship between the first circuit board 3021, the first temperature sensor 301 and the second heat conducting end 602 is not limited, and those skilled in the art can select the first temperature sensor 301 according to the type, and the connection process between the first temperature sensor 301 and the first circuit board 3021 to make a reasonable layout, but they should all be understood as falling within the protection scope of the present application.

It can be understood that, in this application, the foam 7 may also be pasted on the skin-attached temperature measurement module, so as to protect and shock-absorb the skin-attached temperature measurement module. In addition, in the embodiments shown in Figures 21 to 23, the specific setting methods of the ambient temperature measurement module, the skin-attached temperature measurement module, and the method for realizing human body temperature measurement can be set with reference to the above-mentioned embodiments, here No further elaboration.

It can be known from the introduction of the above embodiments that in this application, the ambient temperature measurement module can collect the temperature near the connecting wall 1021 to obtain the ambient temperature for obtaining a more accurate human body temperature. Since the side of the connecting wall 1021 facing away from the accommodating space 103 is in direct contact with the external environment, in some possible embodiments of the application, the connecting wall 1021 can also be used as a heat conduction structure, and the connecting wall 1021 is located outside the accommodating space 103 The part of the connecting wall 1021 in the accommodation space 103 can be used as the second heat conducting end. This can effectively simplify the structure of the wearable device, and facilitate the collection of ambient temperature.

For specific implementation, reference may be made to FIG. 24 , which shows a partial structural schematic diagram of a wearable device according to a possible embodiment of the present application. In this embodiment, the connecting wall 1021 can be made of metal materials such as stainless steel, titanium alloy, aluminum alloy cobalt-based alloy, nickel-based alloy, iron-based alloy, platinum alloy, titanium titanium alloy, etc., or can be made of ceramic and other non-metallic materials, so that the connecting wall 1021 has a higher thermal conductivity.

The first circuit board 3021 of the ambient temperature measurement module is located on one side of the connecting wall 1021 located in the accommodation space 103, the first temperature sensor 301 is fixedly connected to the first circuit board 3021, and the first circuit board 3021 can be, for example, a PCB, so that To the support of the first temperature sensor 301. In addition, the first temperature sensor 301 can be bonded to the connecting wall 1021 through a thermally conductive adhesive. At this time, the first circuit board 3021 can simultaneously support the first temperature sensor 301 and the thermally conductive adhesive. In this embodiment of the present application, the ambient temperature collected by the first heat-conducting end of the connecting wall 1021 can be conducted to the first temperature sensor 301 through the second heat-conducting end and the heat-conducting glue. Furthermore, since there is a circuit connection between the first temperature sensor 301 and the first circuit board 3021 , the transmission of temperature data to the first circuit board 3021 can be realized.

It can be understood that, since the connecting wall 1021 has a larger surface area as the first heat conducting end, its area in contact with the environment is larger, which is beneficial to improve the accuracy of collecting the ambient temperature by the connecting wall 1021 . In addition, the overall volume of the connecting wall 1021 is larger, so it is more stable for collecting ambient temperature.

Continuing to refer to FIG. 24 , in some other possible embodiments of the present application, the minimum distance between the edge of the first circuit board 3021 facing the connecting wall 1021 and the second heat-conducting end of the connecting wall 1021 may be 0.1 mm, so that The heat conduction path between the connecting wall 1021 and the first circuit board 3021 can be effectively shortened, thereby improving the accuracy of the ambient temperature data obtained by the first circuit board 3021 . In addition, by setting a certain distance between the first circuit board 3021 and the second heat-conducting end of the connecting wall 1021, damage to the first circuit board 3021 can be effectively avoided when the connecting wall 1021 is subjected to external force.

In another embodiment of the present application, there may also be a certain distance between the first temperature sensor 301 and the connecting wall 1021, for example, the minimum distance between the two is between 0.3-1.3mm, which can effectively Shortening the heat conduction path between the connecting wall 1021 and the first temperature sensor 301 is beneficial to improving the accuracy of the ambient temperature data obtained by the first temperature sensor 301 . In addition, by setting a certain distance between the first temperature sensor 301 and the second heat-conducting end of the connecting wall 1021 , the risk of damage to the first temperature sensor 301 when the connecting wall 1021 is subjected to an external force can be reduced.

It can be understood that, in the embodiment shown in FIG. 24 , the specific setting methods of the ambient temperature measurement module, the skin-attached temperature measurement module, and the method for realizing the temperature measurement of the human body can be set with reference to the above-mentioned embodiments. This will not be repeated here.

With the wearable device provided in this application, by setting the ambient temperature measurement module on the button 2 or the connecting wall 1021 of the housing 1, a more accurate ambient temperature can be obtained through the ambient temperature measurement module. In addition, a skin-attached temperature measurement module is provided in the first housing 101 to obtain a more accurate skin temperature through the skin-attached temperature measurement module. In this way, the ambient temperature data measured by the environmental temperature measurement module and the skin temperature data measured by the skin-type temperature measurement module can be used as input, and the human body temperature can be obtained through algorithm calculation. The comprehensive consideration of ambient temperature and skin temperature can effectively improve the accuracy of human body temperature measurement.

It can be understood that, in addition to being used in wearable devices, the solutions for measuring human body temperature provided in the above embodiments of the present application can also be used in other commonly used electronic devices. Exemplarily, it can be used in mobile phones, stereos, TVs, sweeping robots or routers, etc., so that they have the function of measuring human body temperature. Wherein, in these electronic devices, both the ambient temperature measurement module and the skin-attached temperature measurement module can be set with reference to any of the above-mentioned embodiments, and details are not described here. In addition, through reasonable design, the above-mentioned electronic equipment can also realize the measurement of the ambient temperature independently.

The above is only the specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application, and should cover Within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A wearable device is characterized in that it includes a housing, a heat conduction structure, an ambient temperature measurement module and a skin-mounted temperature measurement module, wherein:

The shell includes a first shell and a second shell, and the first shell and the second shell are fastened together to form an accommodating space of the shell; the first shell includes a first surface, the The second housing includes a second surface, the first surface is opposite to the second surface, and the first surface and the second surface are connected by a connecting wall;

The heat conduction structure includes a first heat conduction end and a second heat conduction end, the first heat conduction end is used to collect ambient temperature, and the second heat conduction end is located in the accommodation space;

The ambient temperature measurement module is arranged on the second heat transfer end, and the ambient temperature collected by the first heat transfer end is conducted to the ambient temperature measurement module through the second heat transfer end to obtain ambient temperature data;

The skin-attached temperature measurement module is located in the accommodation space, and the skin-attached temperature measurement module is arranged on the first surface of the first housing, and the skin-attached temperature measurement module is used to obtain the skin temperature data;

Human body temperature data can be obtained according to the ambient temperature data and the skin temperature data.
The wearable device according to claim 1, wherein the heat conduction structure is a button, and the button is arranged on the connecting wall; the button includes a button cap and a button rod, and the button cap is arranged on the The connecting wall; the key rod is fixedly connected to the key cap, and the key rod is located in the accommodation space; the key cap is used as the first heat-conducting end, and the end of the key rod is away from the key cap As the second heat conducting end.
The wearable device according to claim 2, wherein at least part of the key cap protrudes from the connecting wall to the outside of the housing.
The wearable device according to claim 2 or 3, wherein the button is integrally formed; or the button is an assembled structure, and the button cap is fixedly connected to the button rod.
The wearable device according to any one of claims 2 to 4, wherein the key cap and/or the key rod comprise an inner layer part and an outer layer part, at least one surface of the inner layer part is in contact with The outer layer is partially in contact; the thermal conductivity of the material of the inner layer is 200-380W/(m·K), and the thermal conductivity of the material of the outer layer is 35-200W/(m·K).
The wearable device according to any one of claims 2 to 5, wherein the key bar is provided with a waterproof groove, and a first sealing member is installed in the waterproof groove, and the first sealing member and the The key rod is in interference fit with the housing.
The wearable device according to any one of claims 2 to 6, wherein the button includes an elastic member, the elastic member is arranged on the side of the button cap facing the button bar, and the elastic member The component elastically abuts against the shell or the structural component disposed in the accommodating space.
The wearable device according to any one of claims 2 to 7, wherein the ambient temperature measurement module includes a first temperature sensor and a first circuit board assembly, and the first circuit board assembly includes a first circuit board , the first temperature sensor is signal-connected to the first circuit board; one of the first temperature sensor and the first circuit board is fixed on the second heat-conducting end.
The wearable device according to claim 8, wherein the ambient temperature measurement module further comprises a cover plate, and the cover plate is sleeved on the first temperature sensor, the first circuit board and the button The ends of the rods away from the key caps are connected to form an assembly structure, and the cover plate has an inner contour matching the contour of the assembly structure.
The wearable device according to claim 1, wherein the heat conduction structure further comprises a connection portion, and the first heat conduction end is connected to the second heat conduction end through the connection portion.
The wearable device according to claim 10, wherein the connecting wall of the housing is provided with a key slot, and the first heat conducting end of the heat conduction structure extends to the key slot; it is installed in the key slot There is an escape space between the key and the first heat-conducting end.
The wearable device according to claim 10 or 11, wherein a bracket is further provided on one side of the connecting wall located in the accommodating space, and the connecting part is embedded in the bracket.
The wearable device according to claim 1, wherein the connecting wall is used as a heat-conducting structure, a side of the connecting wall outside the accommodation space is used as the first heat-conducting end, and a side of the connecting wall is used as the first heat-conducting end. One side located in the accommodating space serves as the second heat conducting end.
The wearable device according to any one of claims 10-13, characterized in that foam is mounted on a side of the ambient temperature measurement module away from the second heat-conducting end.
The wearable device according to any one of claims 1 to 14, wherein the skin-attached temperature measurement module includes a second temperature sensor and a second circuit board assembly, and the second circuit board assembly includes a second A circuit board, the second temperature sensor is electrically connected to the second circuit board.
The wearable device according to claim 15, wherein the wearable device further comprises a photoplethysmography lens, the photoplethysmography lens is arranged on the first casing, and the photoplethysmography A photoplethysmograph optic as part of the first face; one of the second temperature sensor and the second circuit board is fixed to the photoplethysmograph optic.
The wearable device according to claim 16, wherein the thermal conductivity of the photoplethysmograph lens is 35-55 W/(m·K).
The wearable device according to claim 16 or 17, wherein the photoplethysmograph lens has a light-transmitting area and a non-light-transmitting area, and one of the second temperature sensor and the second circuit board fixed in the non-transparent area.
The wearable device according to claim 15, wherein the skin-attached temperature measurement module further includes a temperature measurement structure; the temperature measurement structure includes a heat conduction element, and the heat conduction element includes a connected fixing part and a contact part, the fixing part is located in the accommodating space, and the fixing part is fixedly connected with the housing, and one of the second temperature sensor and the second circuit board is fixed on the side of the fixing part away from the one side of the contact portion;

The first shell is provided with an installation hole, the installation hole runs through the first surface, and at least a part of the contact portion protrudes from the installation hole to the outside of the housing.
The wearable device according to claim 19, wherein the contact portion is provided with a second sealing member, and the second sealing member is in interference fit with the contact portion and the hole wall of the installation hole.
The wearable device according to claim 20, wherein the skin-attached temperature measurement module includes at least two temperature measurement modules, and at least two temperature measurement modules are arranged at intervals.