WO2023024554A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2023024554A1
WO2023024554A1 PCT/CN2022/089639 CN2022089639W WO2023024554A1 WO 2023024554 A1 WO2023024554 A1 WO 2023024554A1 CN 2022089639 W CN2022089639 W CN 2022089639W WO 2023024554 A1 WO2023024554 A1 WO 2023024554A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
electronic device
temperature sensor
negative
wiring
Prior art date
Application number
PCT/CN2022/089639
Other languages
English (en)
French (fr)
Inventor
谭银炯
白亮
姚超
尚睿颖
Original Assignee
荣耀终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to US17/911,345 priority Critical patent/US20240179865A1/en
Priority to EP22761343.7A priority patent/EP4162869A4/en
Publication of WO2023024554A1 publication Critical patent/WO2023024554A1/zh

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/681—Wristwatch-type devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • A61B5/02055—Simultaneously evaluating both cardiovascular condition and temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/251—Means for maintaining electrode contact with the body
    • A61B5/256—Wearable electrodes, e.g. having straps or bands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A61B5/282—Holders for multiple electrodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/20—Clinical contact thermometers for use with humans or animals
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/14—Coupling media or elements to improve sensor contact with skin or tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
    • A61B2562/166—Details of sensor housings or probes; Details of structural supports for sensors the sensor is mounted on a specially adapted printed circuit board
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/332—Portable devices specially adapted therefor
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/02—Detectors of external physical values, e.g. temperature
    • G04G21/025—Detectors of external physical values, e.g. temperature for measuring physiological data
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10151—Sensor

Definitions

  • the present application relates to the technical field of electronic equipment, and in particular to an electronic equipment.
  • the present application provides an electronic device, which can improve the measurement accuracy of a temperature sensor, shorten the measurement time of the temperature sensor, and improve the sensitivity of the temperature sensor.
  • the present application provides an electronic device, the electronic device includes: a casing, a contact piece, a temperature sensor and a circuit board, the casing has an accommodating space; the contact piece is arranged on the casing, and at least part of the surface of the contact piece forms the surface of the electronic device The outer surface; that is, a part of the surface of the contact forms the outer surface of the electronic device, or the entire surface of the contact forms the outer surface of the electronic device; the temperature sensor is arranged in the accommodation space, and the temperature sensor has a positive pole and a negative pole; the circuit board is set In the accommodating space, the circuit board is provided with a positive wiring and a negative wiring, the positive wiring is connected to the positive pole of the temperature sensor, the negative wiring is connected to the negative pole of the temperature sensor, at least one of the positive wiring and the negative wiring is connected to the The contacts are connected by heat conduction, and the temperature sensor is used to realize temperature measurement according to the incoming temperature of at least one of the positive wiring and the negative wiring.
  • the present application provides an electronic device, by enabling heat conduction between at least one of the positive and negative wirings of the circuit board and the contact, so that the temperature sensor can transmit heat through at least one of the positive and negative wirings.
  • the temperature of the temperature can be measured, which improves the heat conduction efficiency of the heat transfer from the human skin to the temperature sensor, shortens the time of temperature measurement, improves the sensitivity of the temperature sensor, reduces the heat loss during the heat conduction process, and improves the accuracy of temperature measurement. accuracy.
  • the thermal conductivity k1 of the contact element satisfies: k1 ⁇ 15 W/m ⁇ K.
  • the heat conduction performance of the contact piece can be guaranteed, so that the temperature of the human skin can be quickly transmitted to the contact piece, and the temperature of the contact piece can be quickly transmitted to the temperature sensor for detection, shortening the temperature transfer time, thereby shortening the temperature.
  • the detection time is improved, and the detection sensitivity of the temperature sensor is improved.
  • the electronic device further includes an insulating and heat-conducting member, and at least one of the positive electrode wiring and the negative electrode wiring is connected to the contact member through thermal conduction through the insulating and heat-conducting member. Therefore, the temperature of the contact piece can be transferred to the positive and/or negative wiring through the insulating and heat-conducting member.
  • the embodiment of the present application The solution can better transmit heat and reduce heat dissipation.
  • the contact part is a conductive part, it can prevent the contact part from being energized, thereby ensuring the safety of electronic equipment.
  • the thermal conductivity k2 of the insulating and heat-conducting member satisfies: k2 ⁇ 10W/m ⁇ K.
  • the electronic device further includes a heat insulating member, and the heat insulating member is wrapped on at least part of the outer surface of the temperature sensor.
  • the thermal insulation can wrap a part of the outer surface of the temperature sensor, or wrap the entire outer surface of the temperature sensor.
  • the heat insulation can separate the temperature sensor from other components on the circuit board, which can reduce the heat exchange between the temperature sensor and the outside world, so as to prevent the heat generated by other components on the circuit board from affecting the temperature sensor and increase the temperature. Accuracy of sensor measurements.
  • the contacts and the temperature sensor are located on opposite sides of the circuit board.
  • the gap between the contact piece and the positive and/or negative wiring is reduced, and it is convenient to realize the connection between the contact and the positive wiring and/or the negative wiring.
  • the heat conduction between the traces reduces the difficulty of assembly, makes the layout of the internal structure of the electronic device more reasonable, makes the structure of the electronic device more compact, and is conducive to realizing the thinner and lighter design of the electronic device.
  • the circuit board includes a multilayer wiring structure formed by alternately arranged metal layers and insulating dielectric layers in sequence
  • the positive wiring includes a positive wiring body and a first metallized via hole, and the positive wiring body Formed on the metal layer, the first metallized via holes run through the opposite side surfaces of the circuit board, and the positive electrode trace body is electrically connected to the first metallized via hole
  • the negative electrode trace includes the negative electrode trace body and the second metallized via hole , the negative wiring body is formed on the metal layer, the second metallized via hole runs through the opposite side surfaces of the circuit board, and the negative electrode wiring body is electrically connected with the second metallized via hole
  • the first metallized via hole and the second metallized via hole At least one of the vias is thermally conductively connected to the contact.
  • at least one of the positive wiring and the negative wiring can be conveniently thermally connected to the contact piece, and the structure of the electronic device can be simplified.
  • the positive wiring further includes a first positive pad and a second positive pad, and the first positive pad and the second positive pad are oppositely arranged at both ends of the first metallized via hole , the first positive electrode pad is electrically connected to the positive electrode of the temperature sensor;
  • the negative electrode wiring also includes a first negative electrode pad and a second negative electrode pad, and the first negative electrode pad and the second negative electrode pad are oppositely arranged on the second metallization At one end of the via hole, the first negative electrode pad is electrically connected to the negative electrode of the temperature sensor; at least one of the second positive electrode pad and the second negative electrode pad is thermally connected to the contact piece.
  • At least one of the positive trace and the negative trace can be thermally connected to the contact piece conveniently, and at the same time, by locating the contact piece and the temperature sensor on opposite sides of the circuit board, the contact between the contact piece and the positive trace can also be reduced. and/or the gap between the negative wires facilitates the heat conduction between the contacts and the positive wires and/or the negative wires, reduces the difficulty of assembly, and makes the layout of the internal structure of the electronic device more reasonable, making the electronic device The structure is more compact, which is conducive to the realization of thin and light design of electronic equipment.
  • the electronic device includes a charging electrode and a detection electrode for detecting vital sign information.
  • the entire surface of the charging electrode) and at least part of the surface of the detection electrode form the outer surface of the electronic device; at least one of the charging electrode and the detection electrode forms a contact.
  • the charging electrode or detecting electrode of the electronic device as the contact of the temperature sensor, the temperature of the human skin is transmitted to the temperature sensor through the charging electrode or detecting electrode.
  • the charging electrode or detecting electrode When the charging electrode or detecting electrode is provided on the electronic device, no need Additional contacts for heat conduction with the temperature sensor save the space occupied by the contacts, thereby saving the overall design space of the electronic equipment, and furthermore, more detection devices can be integrated without increasing the area of the cover plate.
  • the device is integrated on the electronic equipment, which enriches the functions of the electronic equipment. At the same time, the number of openings on the housing can be reduced, improving the waterproof performance of the electronic equipment.
  • the impedance Z of the contact element satisfies: Z ⁇ 1 ⁇ .
  • the impedance of the contact piece by setting the impedance of the contact piece to be less than 1 ⁇ , when the contact piece is a charging electrode or a detection electrode, it not only ensures that the temperature of the human skin can be quickly transmitted to the temperature sensor, but also improves the sensitivity and performance of the temperature sensor. The accuracy of the temperature measurement also ensures an excellent quality signal from the charging electrode or detection electrode.
  • the detection electrodes are electrocardiogram electrodes for detecting electrocardiograms.
  • the user's electrocardiogram information can be obtained conveniently, and the health condition of the user can be monitored conveniently.
  • the detection electrode includes a first electrode and a second electrode, the first electrode and the second electrode are both arranged on the casing and are spaced apart from each other, and at least a part of the first electrode and a part of the second electrode At least part of the electrode is exposed to the casing, and the portion of the first electrode exposed to the casing and the portion of the second electrode exposed to the casing form a ring structure.
  • the contact area between the first electrode and the second electrode and the human body can be increased, and at the same time, the annular structure can improve the stability of the detection electrode in contact with the human body, thereby improving the accuracy of the detection result of the detection electrode.
  • the detection electrode is an ECG electrode, that is, both the first electrode and the second electrode are ECG electrodes
  • setting the first electrode and the second electrode apart can improve the common mode rejection (common mode rejection, CMR) of the ECG electrode. Performance, thereby improving the anti-interference performance of the ECG electrode, and further improving the signal quality of the ECG electrode, making the detection result more accurate.
  • CMR common mode rejection
  • the charging electrode includes a positive electrode and a negative electrode, and the positive electrode and the negative electrode are located on the extension path of the ring structure itself or on the extension line of the extension path. Therefore, the space of the casing can be rationally utilized, so that the overall layout of the electronic device is more reasonable, and the charging electrodes and the detection electrodes can be integrated on the casing, so that the functions of the electronic device are more diverse.
  • the electronic device further includes a photoplethysmography detection device, and a detection light window of the photoplethysmography detection device is located inside the ring structure.
  • the space of the housing can be rationally used, so that the overall structure of the electronic equipment is more compact, so that the detection light window, ECG electrodes, charging electrodes and temperature
  • the contacts of the sensor are all integrated on the cover of the electronic device, so that the electronic device can synchronously detect the user's PPG detection data, ECG detection data and body temperature detection data, and then can obtain the user's pulse, heart rate, blood pressure, ECG and other reflections
  • the data of physical health can also be combined with ECG detection data and body temperature detection data to judge the user's emotions and tension, so as to more comprehensively monitor the user's health.
  • the area of the detection light window is substantially the same as the area inside the ring structure.
  • the detection area of the detection light window can be increased, ensuring that the light of the PPG detection device is not blocked, and improving the detection accuracy of the PPG detection device.
  • the housing includes a cover plate and a frame surrounding the outer periphery of the cover plate, a protrusion portion protruding away from the center of the accommodating space is provided on the cover plate, and the contact piece is disposed on the protrusion portion. Therefore, not only is it convenient for the contact member to contact the human skin, but also the contact area between the cover plate of the electronic device and the skin of the wrist can be increased when the electronic device is worn on the wrist, thereby improving the comfort of the electronic device.
  • the temperature sensor is a digital temperature sensor.
  • the temperature measurement accuracy can be improved, and the occupied space of the temperature sensor can be reduced, which is beneficial to realize the light and thin design of the electronic equipment.
  • the power consumption of electronic equipment can be reduced.
  • FIG. 1 is a schematic structural diagram of an electronic device provided by some embodiments of the present application.
  • FIG. 2 is a schematic structural diagram of a main body of an electronic device provided by some embodiments of the present application.
  • Fig. 3a is an exploded view of the main body of the electronic device provided by some embodiments of the present application.
  • Fig. 3b is a cross-sectional view of a screen of an electronic device provided by some embodiments of the present application.
  • FIG. 4 is a cross-sectional view of a circuit board of an electronic device provided by some embodiments of the present application.
  • Fig. 4a is a schematic diagram of a circuit board of an electronic device provided by some embodiments of the present application.
  • Fig. 4b is a schematic diagram of a circuit board of an electronic device provided by another embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a main body of an electronic device provided by another embodiment of the present application.
  • FIG. 6 is an exploded view of the main body of the electronic device shown in FIG. 5;
  • FIG. 7 is a schematic structural diagram of a temperature sensor provided in some embodiments of the present application.
  • Fig. 8 is a sectional view along line A-A in Fig. 5;
  • Figure 9a is a schematic diagram of the connection between the temperature sensor and the circuit board provided by some embodiments of the present application.
  • Fig. 9b is a schematic diagram of the temperature transfer path during the temperature measurement process of the temperature sensor provided by some embodiments of the present application.
  • FIG. 10 is a schematic structural diagram of a main body of an electronic device provided in some other embodiments of the present application.
  • Fig. 11 is a schematic diagram of the detection process of the PPG detection device provided by some embodiments of the present application.
  • Watch strap 11. First watch strap; 111. First locking part; 12. Second watch strap; 121. Second locking part;
  • Display module 211, screen; 211a, light-transmitting cover; 211b, display screen; 212, decorative ring;
  • 22a cover plate; 221, first embedding groove; 221a, first communication hole; 222, second embedding groove; 222a, second communication hole; 223, protrusion; 224, first via hole; 225, second Via hole; 226, the first interval area; 227, the second interval area; 228, the detection light window;
  • Circuit board 31, metal layer; 31a, first metal layer; 31b, second metal layer; 31c, intermediate metal layer; 32, insulating medium layer; 33, first solder resist layer; 33a, first hollow part ; 34, the second solder resist layer; 34a, the second hollow part; 35, the positive wiring; 35a, the positive wiring body; 35b, the first metallized via hole; 35c, the first positive pad; 35d, the second Positive pad; 36, negative wiring; 36a, negative wiring body; 36b, second metallized via; 36c, first negative pad; 36d, second negative pad;
  • Temperature sensor 4a, positive electrode; 4b, negative electrode; 401, positive electrode welding leg; 402, negative electrode welding leg; 41, insulating shell; 42, temperature sensing element;
  • first”, “second”, “third”, and “fourth” are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly indicating the indicated The number of technical characteristics. Thus, a feature defined as “first”, “second”, “third” and “fourth” may expressly or implicitly include one or more of these features.
  • the term “comprising”, “comprising” or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements, but also includes Including other elements not expressly listed, or also including elements inherent in such process, method, article or apparatus.
  • an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the present application provides an electronic device 100, which can detect the temperature of the human body to determine the health status of the human body.
  • the electronic device 100 provided by this application builds the temperature sensor 4 for detecting the temperature of the human body, and uses the positive and negative wires of the temperature sensor 4 to contact the contacts on the housing 22, so as to measure the temperature of the human body by The contacts, positive and negative wires are sequentially conducted to the temperature sensor 4 for measurement, so as to ensure the accuracy and sensitivity of temperature detection.
  • the electronic device 100 includes, but is not limited to, wearable devices (such as watches, bracelets, glasses, etc.), mobile phones, tablet personal computers, laptop computers, personal digital assistants , PDA), personal computer, notebook computer (notebook), vehicle-mounted equipment and other electronic equipment 100.
  • wearable devices such as watches, bracelets, glasses, etc.
  • mobile phones such as watches, bracelets, glasses, etc.
  • tablet personal computers such as laptop computers, personal digital assistants , PDA), personal computer, notebook computer (notebook), vehicle-mounted equipment and other electronic equipment 100.
  • notebook computer notebook
  • FIG. 1 is a schematic structural diagram of an electronic device 100 provided by some embodiments of the present application.
  • the electronic device 100 is a watch or a bracelet.
  • the following embodiments all take the electronic device 100 as an example for illustration, but this should not be construed as a limitation to the present application.
  • FIG. 1 and the following related drawings only schematically show some components included in the electronic device 100, and the actual shape, actual size, actual position and actual structure of these components are not affected by FIG. 1 and the following accompanying drawings. limited.
  • an XYZ coordinate system is established. Specifically, define the width direction of the electronic device 100 as the X-axis direction, the length direction of the electronic device 100 as the Y-axis direction, and the thickness direction of the electronic device 100 as the Z-axis direction. It can be understood that the setting of the coordinate system of the electronic device 100 can be flexibly set according to actual needs, which is not specifically limited here.
  • an electronic device 100 includes a main body 2 and a watch strap 1 .
  • the strap 1 may include a first strap 11 and a second strap 12 , and the first strap 11 and the second strap 12 may be disposed on opposite sides of the main body 2 along the Y-axis direction.
  • the first strap 11 is provided with a first locking portion 111
  • the second strap 12 is provided with a second locking portion 121
  • the first locking portion 111 and the second locking portion 121 are detachably locked to each other, so as to
  • the electronic device 100 is worn on the user's wrist.
  • the matching structure between the first locking part 111 and the second locking part 121 can be a buckle such as a hook buckle, a concealed buckle, a butterfly buckle, a belt snap buckle, a folding safety buckle, a folding buckle or a pin buckle. structure, which is not specifically limited in this application.
  • FIG. 2 is a perspective view of the main body 2 of the electronic device 100 according to the embodiment of the present application
  • FIG. 3a is an exploded view of the main body 2 of the electronic device 100 according to the embodiment of the present application.
  • the main body 2 may include a display module 21 , a casing 22 , a circuit board 3 , a battery and a temperature sensor 4 .
  • the electronic device 100 may not include the display module 21 .
  • the display module 21 includes a screen 211 and a decorative ring 212 .
  • the decorative ring 212 surrounds the periphery of the screen 211 .
  • the decorative ring 212 can protect and decorate the periphery of the screen 211 .
  • the screen 211 includes a transparent cover plate 211a and a display screen 211b.
  • the transparent cover plate 211a and the display screen 211b are laminated and fixedly connected.
  • the light-transmitting cover plate 211a is mainly used for protecting and dustproofing the display screen 211b.
  • the material of the transparent cover plate 211a includes but not limited to glass.
  • the display screen 211b is used to display images, videos, data and the like.
  • the display screen 211b may be a flexible display screen or a rigid display screen.
  • the display screen 211b can be an organic light-emitting diode (organic light-emitting diode, OLED) display, an active matrix organic light-emitting diode or an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED) Display, mini organic light-emitting diode display, micro organic light-emitting diode display, micro organic light-emitting diode display, quantum dot light-emitting diode (quantum dot light emitting diodes, QLED) display, liquid crystal display (LCD)
  • the present application does not limit the shape of the screen 211 .
  • the display surface of the screen 211 may be circular or rectangular.
  • other components of the main body 2 such as the housing 22 and the decorative ring 212 , also change with the shape of the screen 211 .
  • the display surface of the screen 211 is circular as an example for description.
  • the housing 22 may include a cover plate 22 a and a frame 22 b, and the frame 22 b surrounds the outer periphery of the cover plate 22 a.
  • the cover plate 22a is stacked with the display screen 211b.
  • the frame 22b is located between the back cover and the display screen 211b, and the frame 22b is fixed on the cover plate 22a.
  • the frame 22b may be fixedly connected to the cover plate 22a by glue.
  • the frame 22b can also be integrally formed with the cover plate 22a, that is, the frame 22b and the cover plate 22a form an integral structure.
  • the decorative ring 212 of the display module 21 is fixed on the frame 22b.
  • the decorative ring 212 can be fixed on the frame 22b by glue.
  • the accommodating space in the casing 22 may be surrounded by the screen 211 , the cover 22 a and the frame 22 b.
  • the accommodating space accommodates the circuit board 3 , the temperature sensor 4 , a battery, and the like.
  • the circuit board 3 is a carrier for realizing electrical connection of electronic components.
  • Fig. 4 shows a cross-sectional view of the circuit board 3 of the electronic device 100 according to some embodiments of the present application.
  • the circuit board 3 includes a multilayer wiring structure formed by alternately arranged metal layers 31 and insulating dielectric layers 32 in sequence, the multilayer wiring structure has opposite first surfaces and second surfaces, and the multilayer wiring structures
  • the metal layer 31 of the structure includes a first metal layer 31a forming the above-mentioned first surface and a second metal layer 31b forming the above-mentioned second surface.
  • the first surface of the multilayer wiring structure is provided with a first solder resist layer 33
  • the second surface of the multilayer wiring structure is provided with a second solder resist layer 34 .
  • the first solder resist layer 33 and the second solder resist layer 34 can be made of green ink or black ink. During the subsequent soldering process, the first solder resist layer 33 and the second solder resist layer 34 can prevent solder from being deposited on the surface of the circuit board 3 .
  • the metal layer 31 of the multilayer wiring structure may further include at least one intermediate metal layer 31c, and the intermediate metal layer 31c is located between the first metal layer 31a and the second metal layer 31b.
  • Signal lines may be provided on the first metal layer 331 a , the second metal layer 31 b and the intermediate metal layer 31 c , and the signal lines may include positive wiring 35 and negative wiring 36 .
  • the signal lines in different metal layers 31 are connected by metallized via holes.
  • the first metal layer 31a, the second metal layer 31b and the intermediate metal layer 31c may be copper foil layers.
  • the wires on the first metal layer 31a, the second metal layer 31b and the intermediate metal layer 31c can be processed by lithographic etching.
  • the first solder resist layer 33 has a first hollow portion 33a
  • the second solder resist layer 34 has a second hollow portion 34a.
  • a part of the signal line on the first metal layer 31a can be exposed from the first hollow part 33a, so as to facilitate the electrical connection of components and the signal line on the first metal layer 31a.
  • a part of the signal line on the second metal layer 31b may be exposed from the second hollow portion 34a, so as to facilitate the electrical connection of components and the signal line on the second metal layer 31b.
  • the circuit board 3 can be a rigid circuit board, a flexible circuit board, or a rigid-flex circuit board.
  • the circuit board 3 may use an FR-4 dielectric board, or a Rogers (Rogers) dielectric board, or a mixed media board of FR-4 and Rogers, and so on.
  • FR-4 is a code name of a flame-resistant material grade
  • Rogers dielectric board is a high-frequency board.
  • a processor 301 may be provided on the circuit board 3 . Both the display screen 211 and the temperature sensor 4 are electrically connected to the processor 301 . In this way, the temperature detected by the temperature sensor 4 can be displayed on the display screen 211b after being processed by the processor.
  • the battery is arranged in the accommodation space.
  • the battery is used to provide electric power to electronic devices such as the display screen 211 b and the circuit board 3 in the electronic device 100 .
  • the casing 22 is provided with a battery installation groove, and the battery is installed in the battery installation groove.
  • the temperature sensor 4 has a positive pole 4a and a negative pole 4b.
  • the wiring 36 is connected, and at the same time, the processor 301 is electrically connected to the positive wiring 35 and the negative wiring 36, so that the electrical connection between the temperature sensor 4 and the processor 301 can be realized.
  • the temperature sensor 4 and the processor 301 may be disposed on the same side surface of the circuit board 3 . In other embodiments, please refer to FIG. 4 b , the temperature sensor 4 and the processor 301 may also be respectively disposed on two opposite surfaces of the circuit board 3 .
  • the housing 22 is provided with a contact, and heat conduction is possible between the temperature sensor 4 and the contact. At least part of the surface of the contact forms the outer surface of the electronic device 100 . That is to say, at least part of the surface of the contact is exposed to the housing 22 .
  • the part of the surface of the contact element forming the outer surface of the electronic device 100 can be used to make contact with human skin, and this part of the surface can be formed as a contact surface.
  • the area of the contact surface can be greater than or equal to 20 square millimeters, and the contact surface can be a plane or an arc surface. Specifically, it can be designed according to the physiological structure of the human body, so that the contact surface can be better connected with the user. make contact for heat transfer.
  • the contact piece when the skin of the human body touches the contact piece, the contact piece can absorb the temperature of the human skin, and transmit the temperature of the human skin to the temperature sensor 4, so that the temperature of the human body can be detected by the temperature sensor 4, and then the temperature of the human body can be detected by the electronic device 100. Conveniently monitor the user's health status.
  • the contact piece is connected to the temperature sensor 4 through heat conduction, and the temperature sensor 4 can be conveniently detected on the basis of setting the temperature sensor 4 in the casing 22, thereby improving the temperature sensor performance. 4 reliability.
  • FIG. 5 is a schematic structural diagram of the main body 2 of the electronic device 100 provided by other embodiments of the present application
  • FIG. 6 is an exploded view of the main body 2 of the electronic device 100 shown in FIG. 5
  • the contacts are disposed on the cover plate 22a.
  • the outer surface of the contact piece and the outer surface of the cover plate 22a may be located on the same surface, or the outer surface of the contact piece may protrude outward from the outer surface of the cover plate 22a.
  • the cover plate 22 a is provided with a protruding portion 223 protruding away from the center of the accommodating space, and the contacts are disposed on the protruding portion 223 .
  • the outer surface of the contact element and the outer surface of the protruding portion 223 may be located on the same plane.
  • Fig. 7 is a schematic diagram of a temperature sensor 4 according to some embodiments of the present application.
  • the temperature sensing element 42 of the temperature sensor 4 is generally packaged in the insulating shell 41, and the positive pole 4a and the negative pole 4b of the temperature sensor 4 are exposed to the insulating shell 41, and the temperature sensor The positive pole 4a and the negative pole 4b of 4 realize the electrical connection between the temperature sensing element 42 and the circuit board 3 . Therefore, during the temperature measurement process, after the contact piece absorbs the human skin temperature, the human skin temperature is first transmitted to the insulating shell 41 of the temperature sensor 4 , and then transmitted to the temperature sensing element 42 through the insulating shell 41 . Due to the poor thermal conductivity of the insulating shell 41 , the heat loss and temperature transfer time during the heat conduction process are increased, and the accuracy and sensitivity of temperature measurement are reduced.
  • FIG. 8 is a cross-sectional view along line A-A in FIG. 5 .
  • the temperature sensor 4 is used to The at least one incoming temperature enables temperature measurement.
  • heat conduction may only be possible between the positive wiring 35 of the circuit board 3 and the contact member, and at this time the temperature sensor 4 may realize temperature measurement according to the temperature introduced by the positive wiring 35 .
  • the negative wire 36 of the circuit board 3 and the contact can conduct heat, and at this time the temperature sensor 4 can realize temperature measurement according to the temperature introduced by the negative wire 36 .
  • the temperature of the contact piece can be passed into the temperature sensor 4 through the anode trace 35.
  • the positive pole 4 a and thus the temperature sensor 4 can realize temperature measurement according to the temperature of the positive pole 4 a which is passed into the temperature sensor 4 .
  • the heat conduction path between the contact piece and the temperature sensor 4 is: the contact piece ⁇ the positive electrode wiring 35 ⁇ the positive electrode 4 a of the temperature sensor 4 ⁇ the temperature sensing element 42 of the temperature sensor 4 .
  • the temperature of the contact piece can be transferred to the negative pole 4b of the temperature sensor 4 through the negative pole trace 36 , and then the temperature sensor 4 can realize temperature measurement according to the temperature of the negative electrode 4b of the temperature sensor 4 .
  • the heat conduction path between the contact piece and the temperature sensor 4 is: the contact piece ⁇ the negative electrode wiring 36 ⁇ the negative electrode 4 b of the temperature sensor 4 ⁇ the temperature sensing element 42 of the temperature sensor 4 .
  • the heat of the human body skin absorbed by the contact piece can pass into the temperature sensing element 42 of the temperature sensor 4 through at least one of the positive wiring 35 and the negative wiring 36, because the positive wiring 35, the negative wiring 36, the temperature sensor 4
  • the positive pole 4a of the temperature sensor 4 and the negative pole 4b of the temperature sensor 4 are all conductive materials, and their thermal conductivity is better than that of the insulating shell 41. Capable of heat conduction, improves the heat conduction efficiency of the heat transfer from the human skin to the temperature sensor 4, shortens the temperature transfer time, improves the sensitivity of the temperature sensor 4, and reduces the heat loss during the heat conduction process, thereby improving the accuracy of temperature measurement accuracy.
  • the temperature sensor 4 can be connected according to the positive wiring 35 and the negative wiring.
  • At least one incoming temperature in the line 36 realizes temperature measurement, improves the heat conduction efficiency of the heat transfer from the human skin to the temperature sensor 4, shortens the time for temperature measurement, improves the sensitivity of the temperature sensor 4, and reduces the heat conduction process at the same time
  • the heat loss in the sensor improves the accuracy of temperature measurement.
  • the temperature sensor 4 is a digital temperature sensor, for example, the temperature sensor 4 may be a CMOS digital temperature sensor.
  • the digital temperature sensor is an ultra-small, ultra-high-precision, low-power, low-voltage temperature sensor that the user does not need to calibrate. By setting the temperature sensor 4 as a digital temperature sensor, the temperature measurement accuracy can be improved, and the temperature sensor 4 can be reduced. Occupying space is beneficial to realize the thinner and lighter design of the electronic device 100 . In addition, the power consumption of the electronic device 100 can be reduced.
  • the thermal conductivity k1 of the contact element satisfies: k1 ⁇ 15W/m ⁇ K.
  • the contact piece can be a stainless steel piece processed from stainless steel material.
  • the contact piece is a 316-type stainless steel piece, and its thermal conductivity is 16.2W/m ⁇ K.
  • the present application is not limited thereto.
  • the heat conduction performance of the contact piece can be guaranteed, so that the temperature of the human body skin can be quickly transmitted to the contact piece, and the temperature of the contact piece can be quickly transmitted to the temperature sensor 4 for detection, shortening the time of temperature transmission, and further shortening the temperature of the contact piece.
  • the temperature detection time is shortened, and the detection sensitivity of the temperature sensor 4 is improved.
  • the electronic device 100 further includes a heat insulating member 6 , and the heat insulating member 6 wraps at least part of the outer surface of the temperature sensor 4 . That is to say, the heat insulating member 6 can wrap a part of the outer surface of the temperature sensor 4 , or wrap the entire outer surface of the temperature sensor 4 .
  • the thermal insulator 6 can separate the temperature sensor 4 from other components in the housing 22, and can reduce the heat exchange between the temperature sensor 4 and the outside world, so that the heat generated by other components in the housing 22 can be avoided from affecting the temperature sensor. 4 causes an influence, and improves the accuracy of the measurement result of the temperature sensor 4.
  • the heat insulating member 6 may be rock wool, glass fiber wool or foam.
  • the thermal insulation 6 can be glued on the outer surface of the temperature sensor 4 .
  • the heat insulating member 6 can also be heat insulating paint, and the heat insulating paint can be coated on the outer surface of the temperature sensor 4 . It can be understood that, as long as the thermal insulation component 6 can function to isolate the temperature, the application does not specifically limit the material of the thermal insulation component 6 .
  • the positive pole 4 a and the negative pole 4 b of the temperature sensor 4 are connected to the circuit board 3 through solder pads.
  • Figure 9a is a schematic diagram of the connection between the temperature sensor 4 and the circuit board 3 of some embodiments of the present application
  • Figure 9b is a schematic diagram of the temperature transfer path during the temperature measurement process of the temperature sensor provided by some embodiments of the present application
  • the arrows in Figure 9b indicate the temperature Pass direction.
  • the positive pole 4 a of the temperature sensor 4 is provided with a positive pole 401
  • the negative pole 4 b of the temperature sensor 4 is provided with a negative pole 402 .
  • the positive wiring 35 includes a positive wiring body 35a, a first metallized via hole 35b and a first positive pad 35c, the positive wiring body 35a is formed on the metal layer 31, and the first metallized via hole 35b is arranged on the circuit board 3 Inside, the first metallized via hole 35b runs through the opposite side surfaces of the circuit board 3 .
  • the positive wiring body 35a is electrically connected to the first metallized via hole 35b, and the first positive electrode pad 35c is disposed at one end of the first metallized via hole 35b.
  • the anode welding leg 401 of the temperature sensor 4 is electrically connected to the first anode pad 36 c to realize the electrical connection between the temperature sensor 4 and the anode wiring 35 .
  • the negative wiring 36 includes a negative wiring body 36a, a second metallized via hole 36b and a first negative pad 36c, the negative wiring body 36a is formed on the metal layer 31, and the second metallized via hole 36b is arranged on the circuit board 3 Inside, and through the circuit board 3 along the thickness direction of the circuit board 3 .
  • the negative wire body 36 a is electrically connected to the second metallized via hole 36 b
  • the first negative pad 36 c is disposed at one end of the second metallized via hole 36 b and forms the outer surface of the circuit board 3 .
  • the negative electrode welding leg 402 of the temperature sensor 4 is electrically connected to the first negative electrode pad 36 c to realize the electrical connection between the temperature sensor 4 and the negative electrode wiring 36 .
  • the electrical connection between the temperature sensor 4 and the positive wire 35 and the negative wire 36 of the circuit board 3 can be realized conveniently.
  • the heat absorbed by the contact piece can be transferred to the positive electrode 4a of the temperature sensor 4 and/or the negative electrode 4b of the temperature sensor 4 through at least one of the first positive electrode pad 35c and the first negative electrode pad 36c , and then transmitted to the temperature sensing element 42 of the temperature sensor 4 .
  • the electrical connection between the temperature sensor 4 and the circuit board 3 can be realized conveniently, the difficulty of assembly is reduced, and the sensitivity of the temperature sensor 4 and the accuracy of temperature measurement can be guaranteed at the same time.
  • the positive wiring 35 may not include the first positive pad 35c.
  • the positive pad 401 of the temperature sensor 4 may be electrically connected to the first metallized via hole 35b to realize temperature The electrical connection between the sensor 4 and the positive wiring 35 .
  • the negative electrode wiring 36 may not include the first negative electrode pad 36c.
  • the negative electrode welding leg 402 of the temperature sensor 4 may be electrically connected to the second metallized via hole 36b to realize the connection between the temperature sensor 4 and the negative electrode wiring 36c. electrical connection between. In this way, the electrical connection between the temperature sensor 4 and the positive wire 35 and the negative wire 36 can also be realized, and the structure of the electronic device 100 can be simplified.
  • the contacts and the temperature sensor 4 are located on opposite sides of the circuit board 3 .
  • the temperature sensor 4 is located on the side of the circuit board 3 away from the contacts.
  • the positive wiring 35 also includes a second positive pad 35d
  • the negative wiring 36 also includes a second negative pad 36d
  • the second positive pad 35d and the second negative pad 36d are arranged on the circuit.
  • the side surface of the plate 3 away from the temperature sensor 4, and the second positive electrode pad 35d and the first positive electrode pad 35c are oppositely arranged at the two ends of the first metallized via hole 35b, and the second negative electrode pad 36d is connected to the first positive electrode pad 35b.
  • the negative electrode pad 36c is oppositely disposed at two ends of the second metallized via hole 36b.
  • the contact piece may be thermally conductively connected to the second positive electrode pad 35d to realize heat conduction between the contact piece and the positive electrode trace 35, and/or the contact piece may be thermally conductively connected to the second negative electrode pad 36d to realize the heat conduction between the contact piece and the negative electrode trace.
  • the heat conduction between the wires 36 can then transfer the temperature of the contact piece to the temperature sensing element 42 of the temperature sensor 4 .
  • a thermally conductive connection between at least one of the positive and negative traces 35 and 36 and the contacts can be achieved, and at the same time the contact can be reduced by positioning the contacts and the temperature sensor 4 on opposite sides of the circuit board 3 .
  • the gap between the component and the positive wiring 35 and/or the negative wiring 36 facilitates the heat conduction between the contact and the positive wiring 35 and/or the negative wiring 36, reduces the difficulty of assembly, and makes the electronic device 100
  • the layout of the internal structure is more reasonable, making the structure of the electronic device 100 more compact, which is beneficial to realize the thinner and lighter design of the electronic device 100 .
  • the positive wiring 35 may not include the second positive pad 35d
  • the negative wiring may not include the second negative pad 36d.
  • the contact piece can be directly connected to at least one of the first metallized via hole 35b and the second metallized via hole 36b in thermal conduction, so as to realize the connection between the contact piece and the positive electrode trace 35 and/or the negative electrode trace 36 The heat conduction between them can then transmit the temperature of the contact piece to the temperature sensing element 42 of the temperature sensor 4 . In this way, heat conduction between the contacts and the positive wiring 35 and/or the negative wiring 36 can be realized and the structure of the electronic device 100 can be simplified.
  • the electronic device 100 further includes an insulating and heat-conducting member 5 , and at least one of the positive wiring 35 and the negative wiring 36 is thermally connected to the contact member through the insulating and heat-conducting member 5 .
  • the insulating and heat-conducting member 5 may cover the surface of the contact member near the circuit board 3 .
  • the thermal conductivity k2 of the insulating and heat-conducting member 5 satisfies: k2 ⁇ 10W/m ⁇ K.
  • the insulating and heat-conducting member 5 may be heat-conducting silica gel, heat-conducting silicone grease, heat-conducting adhesive, and the like.
  • an insulating and heat-conducting member 5 may be provided between the positive wiring 35 and the contact.
  • an insulating heat conducting member 5 may be provided between the negative wiring 36 and the contact.
  • the insulating and heat-conducting member 5 may cover the second positive pad 35 d and the second negative pad 36 d.
  • the electronic device includes a charging electrode 8 and a detection electrode 7 for detecting vital sign information
  • the charging electrode 8 and the detection electrode 7 are arranged on the casing 22, and at least part of the surface of the charging electrode 8 and At least part of the surface of the detection electrode 7 forms the outer surface of the electronic device 100 , and at least one of the charging electrode 8 and the detection electrode 7 forms a contact. That is to say, the charging electrode 8 may form a contact, the detection electrode 7 may also form a contact, or both the charging electrode 8 and the detection electrode 7 may form a contact.
  • the charging electrode 8 can be electrically connected with the battery of the electronic device 100 , so that when the charging electrode 8 is connected to an external power source, the battery can be charged through the charging electrode 8 .
  • the charging electrode 8 includes a positive electrode 81 and a negative electrode 82 . Both the positive electrode 81 and the negative electrode 82 may be formed in a cylindrical structure, but are not limited thereto.
  • the housing 22 is provided with a first via hole 224 and a second via hole 225, the positive electrode 81 is penetrated in the first via hole 224, and the negative electrode 82 is penetrated in the second via hole 225 , the outer surface of the positive electrode 81 and the outer surface of the negative electrode 82 both form the outer surface of the electronic device 100 .
  • one of the positive electrode 81 and the negative electrode 82 can be used as a contact for thermal conduction with the temperature sensor 4 .
  • both the positive electrode 81 and the negative electrode 82 can be used as contacts for heat conduction with the temperature sensor 4 , so that the contact area of the contacts with the human skin can be increased.
  • the detecting electrode 7 for detecting vital sign information can be used for detecting vital sign information of a human body.
  • the detection electrode 7 can be electrically connected with the processor 301, and after the detection electrode 7 detects the vital sign information of the user, it can be displayed on the display screen 211b after being processed by the processor.
  • the vital sign information of the user can be detected conveniently, and the health condition of the user can be monitored conveniently.
  • the detection electrodes 7 may be electrocardiogram (electrocardiogram, ECG) electrodes.
  • ECG electrocardiogram
  • the detection data of the ECG electrode is generated according to the electrical signal of the human skin collected by the ECG electrode.
  • the detection data of the ECG electrodes is used to characterize the potential difference between two limbs of the human body, for example, between the left upper limb and the right upper limb, between the left lower limb and the right upper limb, or between the left lower limb and the left upper limb. Due to the large area of the detection electrode 7, using the detection electrode 7 as the contact of the temperature sensor 4 can increase the contact area of the contact with the human skin, thereby improving the heat conduction efficiency between the contact and the temperature sensor 4, and can Reduce measurement errors.
  • the temperature of the human skin is transmitted to the temperature sensor through the charging electrode 8 or the detection electrode 7.
  • the charging electrode 8 or the detection electrode 7 is provided on the electronic device 100, there is no need to additionally provide a contact piece for conducting heat with the temperature sensor 4, which saves the occupied space of the contact piece, thereby saving the cost of the electronic device 100.
  • the design space of the whole machine allows more detection devices to be integrated on the electronic device 100 without increasing the area of the cover plate 22 a , thus enriching the functions of the electronic device 100 .
  • the number of openings on the casing 22 can also be reduced, improving the waterproof performance of the electronic device 100 .
  • the impedance Z of the contact element satisfies: Z ⁇ 1 ⁇ .
  • the contact parts can be stainless steel parts, copper parts and the like.
  • the impedance of the contact piece by setting the impedance of the contact piece to be less than 1 ⁇ , when the contact piece is the charging electrode 8 or the detection electrode 7, it not only ensures that the temperature of the human skin can be quickly transmitted to the temperature sensor 4, but also improves the temperature of the temperature sensor 4. The sensitivity and accuracy of temperature measurement also ensure the excellent quality signal of the charging electrode 8 or detection electrode 7.
  • the detection electrode 7 includes a first electrode 71 and a second electrode 72, the first electrode 71 and the second electrode 72 are both arranged on the housing 22 and spaced apart from each other, at least part of the first electrode 71 and At least a portion of the second electrode 72 is exposed from the casing 22 , and the portion of the first electrode 71 exposed to the casing 22 and the portion of the second electrode 72 exposed to the casing 22 form a ring structure. Since the first electrode 71 and the second electrode 72 are spaced apart, the ring structure is discontinuous and has discontinuous parts.
  • the ring structure may be a square ring, a circular ring, an elliptical ring or the like.
  • both the first electrode 71 and the second electrode 72 are formed in an arc shape, and the first electrode 71 and the second electrode 72 form a ring structure.
  • the contact area between the first electrode 71 and the second electrode 72 and the human body can be increased, and the ring structure can increase the contact between the detection electrode 7 and the human body. Stability, so that the accuracy of the detection result of the detection electrode 7 can be improved.
  • the detection electrode 7 is an ECG electrode, that is, both the first electrode 71 and the second electrode 72 are ECG electrodes
  • the first electrode 71 and the second electrode 72 are spaced apart to improve the common mode rejection (common mode) of the ECG electrodes.
  • mode rejection (CMR) performance thereby improving the anti-interference performance of the ECG electrode, further improving the signal quality of the ECG electrode, and making the detection result more accurate.
  • common-mode rejection refers to the characteristics of canceling any common-mode signal at both ends (the input points at both ends are the same), and at the same time amplifying the differential-mode signal (potential difference at both ends).
  • the detection electrode 7 further includes a third electrode 73, and the third electrode is also an ECG electrode.
  • the third electrode 73 may be disposed on the frame 22 b or the decorative ring 212 . It can be understood that the first electrode 71 may be an ECG positive electrode, the second electrode 72 may be a driving electrode, and the third electrode 72 may be an ECG negative electrode.
  • the first electrode 71 is an ECG positive electrode and the third electrode 72 is an ECG negative electrode
  • the electronic device 100 is worn on one wrist of the user, the skin of the wrist is in contact with the cover plate 22a of the electronic device 100, that is The positive ECG electrode can be touched, and the negative electrode of the ECG can be touched by pressing the frame 22b or the device ring 212 with the other hand, so that a loop is formed between the human body and the electronic device 100, and then ECG detection data can be collected.
  • the left hand can touch the ECG positive electrode
  • the right hand can touch the ECG negative electrode, forming a circuit between the human body and the electronic device 100, and then An electrical signal representing a potential difference between the left upper limb and the right upper limb can be acquired.
  • the first electrode 71 includes a first body portion 711 and a first protrusion portion 712 , and the first protrusion portion 712 is disposed on an inner surface of the first body portion 711 .
  • the second electrode 72 includes a second body part 721 and a second protrusion part 722 , and the second protrusion part 722 is disposed on an inner surface of the second body part 721 .
  • the "inner surface" of the first body part 711 refers to a side surface of the first body part 711 facing the receiving space.
  • the “inner surface” of the second body part 721 refers to a side surface of the second body part 721 facing the receiving space.
  • the outer surface of the cover plate 22a is provided with a first insertion groove 221 and a second insertion groove 222.
  • the first insertion groove 221 has a first communication hole 221a communicating with the accommodation space
  • the second insertion groove 222 has a second insertion groove communicating with the accommodation space.
  • the first body portion 711 of the first electrode 71 is disposed in the first embedding groove 221 and the first protruding portion 712 of the first electrode 71 protrudes into the receiving space through the first communication hole 221a.
  • the second body portion 721 of the second electrode 72 is disposed in the second embedding groove 222 and the second protruding portion 722 of the second electrode 72 protrudes into the receiving space through the second communication hole 222a.
  • the first electrode 71 and the second electrode 72 can be easily assembled on the casing 22, so that the positions of the first electrode 71 and the second electrode 72 are more convenient.
  • first electrode 71 and the second electrode 72 are arranged axisymmetrically with respect to the central axis of the main body 2 along the X-axis direction or the central axis of the Y-axis direction. In this way, the distribution of the first electrodes 71 and the second electrodes 72 can be made more uniform, and the stability of the contact between the detection electrodes 7 and the user can be further improved, so that the detection results are more accurate. At the same time, the appearance of the electronic device 100 can also be made more beautiful.
  • the positive electrode 81 and the negative electrode 82 of the charging electrode 8 are located on the extension path of the ring structure itself or on the extension line of the extension path. Therefore, by arranging the positive electrode 81 and the negative electrode 82 of the charging electrode 8 on the extension path of the ring structure, the space of the casing 22 can be reasonably used, so that the overall layout of the electronic device 100 is more reasonable, and the charging electrodes can be placed 8.
  • the detection electrodes 7 are all integrated on the casing 22, so that the functions of the electronic device 100 are more diverse.
  • the first electrode 71 has a first end 71a and a second end 71b
  • the second electrode 72 has a third end 72a and a fourth end 72b
  • the first electrode 71 The first end 71a and the third end 72a of the second electrode 72 are opposite and spaced apart to form a first spacer region 226, and the second end 71b of the first electrode 71 is opposite and spaced apart from the fourth end 72b of the second electrode 72 set to form the second spacer region 227 .
  • the first spacing area 226 and the second spacing area 227 are located on the extension line of the above-mentioned extending path.
  • One of the positive electrode 81 and the negative electrode 82 of the charging electrode 8 may be disposed in the first separation region 226 , and the other of the positive electrode 81 and the negative electrode 82 of the charging electrode 8 may be disposed in the second separation region 227 .
  • both the positive electrode 81 and the negative electrode 82 of the charging electrode 8 may also be disposed in the first separation region 226 or the second separation region 227 .
  • the space between the first electrode 71 and the second electrode 72 can be fully utilized to arrange the charging electrode 8, fully and rationally utilizing the space of the housing 22, and simplifying the configuration of the first electrode 71 and the second electrode 72.
  • the processing technology is conducive to improving the processing efficiency.
  • FIG. 10 shows a perspective view of the main body 2 of an electronic device 100 in other embodiments of the present application.
  • the difference between the structure of the main body 2 of the electronic device 100 shown in FIG. 10 and the main body 2 of the electronic device 100 shown in FIG. 5 is that in the example of FIG. on the extension path itself.
  • the first electrode 71 is provided with a first avoidance hole 71c
  • the second electrode 72 is provided with a second avoidance hole 72c, so that the positive electrode 81 and the negative electrode 82 can be respectively arranged in the first avoidance hole 71c and the second avoidance hole 72c. Therefore, the space of the housing 22 can also be reasonably utilized, making the overall layout of the electronic device 100 more reasonable, and then the charging electrodes 8 and the detecting electrodes 7 can be integrated on the housing 22, so that the functions of the electronic device 100 are more abundant. diverse.
  • the electronic device 100 also includes a photoplethysmography (photo plethysmography, PPG) detection device, and the detection light window 228 of the PPG detection device is located at the ring structure. inside.
  • the PPG detection device is used to detect the PPG signal of the measured object, and can obtain the pulse and other health data of the measured object.
  • the detection light window 228 is a light-transmitting area formed on the casing 22 .
  • light-transmitting glass may be provided inside the ring structure to form the detection light window 228 .
  • the light emitted by the PPG detection device can pass through the detection light window 228 and irradiate the human skin surface.
  • the detection device receives.
  • the PPG detection device is an infrared non-destructive detection technology. It uses a photoelectric sensor to detect the difference in the intensity of reflected light absorbed by human blood and muscle tissue 400, etc., and traces the change of the blood vessel volume during the cardiac cycle, thereby obtaining the pulse waveform. Heart rate is then calculated.
  • Fig. 11 shows a schematic diagram of the detection process of the PPG detection device.
  • the PPG detection device includes a light emitting element 91 and a light detector 92, the light emitting element 91 and the light detector 92 can be arranged in the accommodation space and are electrically connected with the processor respectively, and the light emitting element 91 and the light detector 92 are all connected to the detection light Window 228 is opposite.
  • the light emitting element 91 when the light emitting element 91 emits a light beam of a certain wavelength, the light beam can pass through the detection light window 228 and irradiate the human skin surface (such as the wrist skin).
  • the contraction and expansion of the blood vessel will affect the transmission of light or reflection of light.
  • the light passes through the skin tissue 200 and is reflected to the light detector 92 through the detection light window 228, the light will attenuate to a certain extent.
  • the absorption of light is basically unchanged (if the measurement site does not have a large movement), but the artery 300 will be different, because there is blood pulsation in the artery 300, so the light absorption Absorption will naturally vary.
  • the obtained signal is It can be divided into direct current DC signal and alternating current AC signal. Extracting the AC signal from it can reflect the characteristics of blood flow, so that the pulse waveform can be obtained, and then the heart rate can be calculated. It can be understood that the blood pressure value can also be calculated by combining the detection data of the PPG detection device and the detection data of the ECG electrode 73 .
  • the space of the housing 22 can be rationally used, so that the overall structure of the electronic device 100 is more compact, so that the area of the cover plate 22a can not be increased.
  • the detection light window 228 of the PPG detection device, the ECG electrode 73, the charging electrode 8 and the contacts of the temperature sensor 4 are all integrated on the cover plate 22a of the electronic device 100, so that the electronic device 100 can simultaneously detect the user's PPG detection data, ECG detection data and body temperature detection data, and then can obtain the user's pulse, heart rate, blood pressure, electrocardiogram and other data reflecting the physical health. Tension is judged to monitor the user's health more comprehensively.
  • the area of the detection light window 228 is substantially the same as the area inside the annular structure.
  • the detection area of the detection light window 228 can be increased, ensuring that the light of the PPG detection device is not blocked, and improving the detection accuracy of the PPG detection device.
  • the electronic device 100 provided in this application can be worn on the wrist, or placed on the forehead, armpit, etc., and can be in contact with the skin of the human body by means of contacts to detect the temperature of the human body.
  • the electronic device 100 can be used to detect the body temperature in real time, for example, the body temperature can be detected at predetermined intervals to monitor the body temperature in real time.
  • the aforementioned predetermined time may be 1 min, 3 min, 5 min, 10 min, 30 min, 60 min and so on.
  • the user can adjust the scheduled time according to actual needs, which is not limited in this application.
  • the user can also manually activate the temperature detection function by triggering the start switch, so as to detect the body temperature of the human body.

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Abstract

一种电子设备(100)，包括：壳体(22)、接触件、温度传感器(4)和电路板(3)，壳体(22)具有容纳空间；接触件设在壳体(22)上，且接触件的至少部分表面形成电子设备(100)的外表面；温度传感器(4)设置于容纳空间内，且温度传感器(4)具有正极(4a)和负极(4b)；电路板(3)设置于容纳空间内，电路板(3)上设有正极走线(35)和负极走线(36)，正极走线(35)与温度传感器(4)的正极(4a)连接、负极走线(36)与温度传感器(4)的负极(4b)连接，正极走线(35)和负极走线(36)中的至少一个与接触件之间热传导连接，温度传感器(4)用于根据正极走线(35)和负极走线(36)中的至少一个传入的温度实现温度测量。

Description

电子设备
本申请要求于2021年08月26日提交国家知识产权局、申请号为202122038383.X、发明名称为“电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子设备技术领域，尤其涉及一种电子设备。
背景技术
随着生活水平的提高，人们越来越重视自身的健康状况，为便于人们了解自身的健康状况，越来越多的电子设备如手表、手环等具有健康检测功能，例如测温功能等。然而，当前电子设备的温度测量准确度较低。
发明内容
本申请提供一种电子设备，该电子设备能够提高温度传感器的测量准确性，并能缩短温度传感器的测量时间，提高温度传感器的灵敏性。
为达到上述目的，本申请的实施例采用如下技术方案：
本申请提供一种电子设备，该电子设备包括：壳体、接触件、温度传感器和电路板，壳体具有容纳空间；接触件设在壳体上，且接触件的至少部分表面形成电子设备的外表面；即接触件的其中一部分表面形成电子设备的外表面，或者接触件的整个表面均形成电子设备的外表面；温度传感器设置于容纳空间内，且温度传感器具有正极和负极；电路板设置于容纳空间内，电路板上设有正极走线和负极走线，正极走线与温度传感器的正极连接、负极走线与温度传感器的负极连接，正极走线和负极走线中的至少一个与接触件之间热传导连接，温度传感器用于根据正极走线和负极走线中的至少一个传入的温度实现温度测量。
本申请提供一种电子设备，通过使电路板的正极走线和负极走线中的至少一个与接触件之间能够热传导，使得温度传感器能根据正极走线和负极走线中的至少一个传入的温度实现温度测量，提高了人体皮肤热量传递至温度传感器的热传导效率，缩短了温度测量的时间，提高了温度传感器的灵敏性，同时减小了热传导过程中的热量损失，提高了温度测量的准确性。
在一种可能的实现方式中，接触件的导热系数k1满足：k1≥15W/m·K。由此，可以保证接触件的热传导性能，使得人体皮肤温度能快速地传递至接触件，并能使接触件的温度快速地传递到温度传感器上进行检测，缩短了温度传递时间，进而缩短了温度检测时间，提高了温度传感器的检测灵敏性。
在一种可能的实现方式中，电子设备还包括绝缘导热件，正极走线和负极走线中的至少一个与接触件通过绝缘导热件热传导连接。由此，可以通过绝缘导热件将接触件的温度传递至正极走线和/或负极走线，相对于接触件与正极走线和/或负极走线直接连接的方案，本申请实施例中的方案能够更好地传输热量，减少热量的散发，同时，当接触件为导电件时，可以避免接触件通电，保证了电子设备的使用安全性。
在一种可能的实现方式中，绝缘导热件的导热系数k2满足：k2≥10W/m·K。由此，可以保证绝缘导热件的热传导性能，使接触件的温度快速地传递到温度传感器上进行检测。
在一种可能的实现方式中，电子设备还包括隔热件，隔热件包裹在温度传感器的至少 部分外表面上。隔热件可以包裹温度传感器外表面的其中一部分，也可以包裹温度传感器的整个外表面。隔热件可以将温度传感器与电路板上的其他元器件隔开，能够减少温度传感器与外界进行的热交换，这样可以避免电路板上其他元器件产生的热量对温度传感器造成影响，提高了温度传感器测量结果的准确度。
在一种可能的实现方式中，接触件和温度传感器位于电路板的相对两侧。由此，通过使接触件和温度传感器位于电路板的相对两侧，减小了接触件与正极走线和/或负极走线之间的间隙，便于实现接触件与正极走线和/或负极走线之间的热传导，降低了装配难度，且使得电子设备的内部结构的布局更加合理，使得电子设备的结构更加紧凑，有利于实现电子设备的轻薄化设计。
在一种可能的实现方式中，电路板包括由依次交替设置的金属层和绝缘介质层形成的多层布线结构，正极走线包括正极走线本体和第一金属化过孔，正极走线本体形成在金属层上，第一金属化过孔贯穿电路板的相对两侧表面，正极走线本体与第一金属化过孔电连接；负极走线包括负极走线本体和第二金属化过孔，负极走线本体形成在金属层上，第二金属化过孔贯穿电路板的相对两侧表面，负极走线本体与第二金属化过孔电连接；第一金属化过孔和第二金属化过孔中的至少一个与接触件热传导连接。由此，可以方便地使正极走线和负极走线中的至少一个与接触件热传导连接，且可以简化电子设备的结构。
在一种可能的实现方式中，正极走线还包括第一正极焊盘和第二正极焊盘，第一正极焊盘和第二正极焊盘相对地设置在第一金属化过孔的两端，第一正极焊盘与温度传感器的正极电连接；负极走线还包括第一负极焊盘和第二负极焊盘，第一负极焊盘和第二负极焊盘相对地设置在第二金属化过孔的一端，第一负极焊盘与温度传感器的负极电连接；第二正极焊盘和第二负极焊盘中的至少一个与接触件热传导连接。
由此，可以方便地使正极走线和负极走线中的至少一个与接触件热传导连接，同时通过使接触件和温度传感器位于电路板的相对两侧，还可以减小接触件与正极走线和/或负极走线之间的间隙，便于实现接触件与正极走线和/或负极走线之间的热传导，降低了装配难度，且使得电子设备的内部结构的布局更加合理，使得电子设备的结构更加紧凑，有利于实现电子设备的轻薄化设计。
在一种可能的实现方式中，电子设备包括充电电极和用于检测生命体征信息的检测电极，充电电极和检测电极设在壳体上，且充电电极的至少部分表面(充电电极的部分表面或充电电极的整个表面)以及检测电极的至少部分表面(检测电极的部分表面或检测电极的整个表面)形成电子设备的外表面；充电电极和检测电极中的至少一个形成接触件。由此，通过将电子设备的充电电极或检测电极作为温度传感器的接触件，通过充电电极或检测电极将人体皮肤的温度传递至温度传感器，当电子设备上设有充电电极或者检测电极时，无需额外设置用于与温度传感器进行热传导的接触件，节省了接触件的占用空间，从而节省了电子设备的整机设计空间，进而可以在不增大盖板面积的前提下，将更多的检测装置集成在电子设备上，丰富了电子设备的功能。同时，还可以减少壳体上的开孔数量，提高了电子设备的防水性能。
在一种可能的实现方式中，接触件的阻抗Z满足：Z≤1Ω。在本实施例中，通过将接触件的阻抗设置为小于1Ω，在接触件为充电电极或检测电极时，不仅保证了人体皮肤的温度能快速传输到温度传感器上，提高温度传感器的灵敏性和温度测量的准确性，也保证 了充电电极或检测电极的优良质量信号。
在一种可能的实现方式中，检测电极为用于检测心电图的心电图电极。由此，可以方便地获得使用者的心电图信息，进而可以方便地监测使用者的健康状况。
在一种可能的实现方式中，检测电极包括第一电极和第二电极，第一电极与第二电极均设在壳体上且彼此间隔开设置，第一电极的至少部分和第二电极的至少部分外露于壳体，且第一电极外露于壳体的部分与第二电极外露于壳体的部分围成环形结构。这样，可以增大第一电极和第二电极与人体的接触面积，同时环状结构可以提高检测电极与人体接触的稳定性，从而可以提高检测电极的检测结果的准确性。另外，当检测电极为ECG电极时，即第一电极和第二电极均为ECG电极，将第一电极和第二电极间隔开设置，可以提高ECG电极的共模抑制(common mode rejection，CMR)性能，从而提高了ECG电极的抗干扰性能，进而进一步地提高了ECG电极的信号质量，使得检测结果更加准确。
在一种可能的实现方式中，充电电极包括正电极和负电极，正电极与负电极位于环形结构的延伸路径本身或所述延伸路径的延长线上。由此，可以合理地利用壳体的空间，使得电子设备的整体布局更加合理，进而可以将充电电极、检测电极均集成在壳体上，使得电子设备的功能更加丰富多样。
在一种可能的实现方式中，电子设备还包括光电容积描记检测装置，光电容积描记检测装置的检测光窗位于环形结构的内侧。这样，可以合理地利用壳体的空间，使得电子设备的整体结构更加紧凑，从而可以在不增加盖板面积的基础上，将光电容积描记检测装置的检测光窗、ECG电极、充电电极和温度传感器的接触件均集成在电子设备的盖板上，使得电子设备可以同步检测使用者的PPG检测数据、ECG检测数据和体温检测数据，进而可以获取使用者的脉搏、心率、血压、心电图等反映身体健康情况的数据，此外还可以结合ECG检测数据和体温检测数据对使用者的情绪和紧张感进行判断，以更加全面地监测使用者的健康情况。
在一种可能的实现方式中，检测光窗的面积与该环形结构内侧的面积大体相同。由此，可以增大检测光窗的检测面积，保证了PPG检测装置的光线不被遮挡，提高了PPG检测装置的检测准确度。
在一种可能的实现方式中，壳体包括盖板和环绕在盖板外周的边框，盖板上设有朝向远离容纳空间的中心凸出的凸出部，接触件设在凸出部上。由此，不仅便于接触件接触人体皮肤，同时在将电子设备穿戴在手腕上时，可以增大电子设备的盖板与手腕皮肤的接触面积，提高了电子设备的舒适性。
在一种可能的实现方式中，温度传感器为数字温度传感器。由此，可以提高温度测量精度，且可以减小温度传感器的占用空间，有利于实现电子设备的轻薄化设计。此外，还能降低电子设备的能耗。
附图说明
图1为本申请一些实施例提供的电子设备的结构示意图；
图2为本申请一些实施例提供的电子设备的主体部的结构示意图；
图3a为本申请一些实施例提供的电子设备的主体部的爆炸图；
图3b为本申请一些实施例提供的电子设备的屏幕的剖视图；
图4为本申请一些实施例提供的电子设备的电路板的剖视图；
图4a为本申请一些实施例提供的电子设备的电路板的示意图；
图4b为本申请另一些实施例提供的电子设备的电路板的示意图；
图5为本申请另一些实施例提供的电子设备的主体部的结构示意图；
图6为图5中所示的电子设备的主体部的爆炸图；
图7为本申请一些实施例提供的温度传感器的结构示意图；
图8为沿图5中A-A线的剖视图；
图9a为本申请一些实施例提供的温度传感器与电路板连接的示意图；
图9b为本申请一些实施例提供的温度传感器的测温过程中温度传递路径的示意图；
图10为本申请又一些实施例提供的电子设备的主体部的结构示意图；
图11为本申请一些实施例提供的PPG检测装置的检测过程的示意图。
附图标记：
100、电子设备；
1、表带；11、第一表带；111、第一锁持部；12、第二表带；121、第二锁持部；
2、主体部；
21、显示模组；211、屏幕；211a、透光盖板；211b、显示屏；212、装饰圈；
22、壳体；
22a、盖板；221、第一嵌入槽；221a、第一连通孔；222、第二嵌入槽；222a、第二连通孔；223、凸出部；224、第一过孔；225、第二过孔；226、第一间隔区域；227、第二间隔区域；228、检测光窗；
22b、边框；
3、电路板；31、金属层；31a、第一金属层；31b、第二金属层；31c、中间金属层；32、绝缘介质层；33、第一阻焊层；33a、第一镂空部；34、第二阻焊层；34a、第二镂空部；35、正极走线；35a、正极走线本体；35b、第一金属化过孔；35c、第一正极焊盘；35d、第二正极焊盘；36、负极走线；36a、负极走线本体；36b、第二金属化过孔；36c、第一负极焊盘；36d、第二负极焊盘；
301、处理器；
4、温度传感器；4a、正极；4b、负极；401、正极焊脚；402、负极焊脚；41、绝缘外壳；42、感温元件；
5、绝缘导热件；
6、隔热件；
7、检测电极；71、第一电极；711、第一本体部；712、第一凸起部；71a、第一端；71b、第二端；71c、第一避让孔；72、第二电极；721、第二本体部；722、第二凸起部；72a、第三端；72b、第四端；72c、第二避让孔；73、ECG电极；
8、充电电极；81、正电极；82、负电极；
91、发光元件；92、光检测器；
200、皮肤组织；300、动脉；400、肌肉组织。
具体实施方式
在本申请实施例中，术语“第一”、“第二”、“第三”、“第四”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、 “第二”、“第三”、“第四”的特征可以明示或者隐含地包括一个或者更多个该特征。
在本申请实施例中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
在本申请实施例中，“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请提供一种电子设备100，该电子设备100能够实现人体温度检测，以判断人体的健康状况。具体的，本申请提供的电子设备100通过将用于检测人体温度的温度传感器4内置，并借助该温度传感器4的正负极走线与壳体22上的接触件接触，以将人体温度由接触件、正负极走线依次传导至温度传感器4内进行测量，以保证温度检测的准确性和灵敏性。
具体的，电子设备100包括但不限于穿戴设备(例如，手表、手环、眼镜等)、手机、平板电脑(tablet personal computer)、膝上型电脑(laptop computer)、个人数码助理(personal digital assistant，PDA)、个人计算机、笔记本电脑(notebook)、车载设备等电子设备100。
请参阅图1，图1为本申请一些实施例提供的电子设备100的结构示意图。在本实施例中，电子设备100为手表或手环。以下实施例为了方便说明，均是以电子设备100为手表为例进行的举例说明，但这不能理解为对本申请的限制。
可以理解的是，图1以及下文相关附图仅示意性的示出了电子设备100包括的一些部件，这些部件的实际形状、实际大小、实际位置和实际构造不受图1以及下文各附图限定。
为了方便下文各实施例的描述，建立XYZ坐标系。具体的，定义电子设备100的宽度方向为X轴方向，电子设备100的长度方向为Y轴方向，电子设备100的厚度方向为Z轴方向。可以理解的是，电子设备100的坐标系设置可以根据实际需要进行灵活设置，在此不做具体限定。
具体的，请参阅图1，电子设备100包括主体部2和表带1。表带1可以包括第一表带11和第二表带12，第一表带11和第二表带12可以沿Y轴方向设于主体部2的相对两侧。第一表带11设有第一锁持部111，第二表带12设有第二锁持部121，第一锁持部111和第二锁持部121可拆卸地彼此锁持，以将电子设备100穿戴于用户的手腕上。应当理解的是，第一锁持部111和第二锁持部121之间的配合结构可以为钩扣、暗扣、蝴蝶扣、皮带按扣、折叠安全扣、折叠扣或针扣等表扣结构，本申请对此不做具体限定。
请参阅图2和图3a，图2是根据本申请实施例的电子设备100的主体部2的立体图，图3a是本申请实施例的电子设备100的主体部2的爆炸图。主体部2可以包括显示模组21、壳体22、电路板3、电池和温度传感器4。在其他一些实施例中，电子设备100也可以不包括显示模组21。
请参阅图3b，显示模组21包括屏幕211以及装饰圈212。装饰圈212环绕在屏幕211的周边。装饰圈212可以对屏幕211的周边进行保护和装饰。屏幕211包括透光盖板211a和显示屏211b。透光盖板211a与显示屏211b层叠设置并固定连接。透光盖板211a主要 用于对显示屏211b起到保护以及防尘作用。透光盖板211a的材质包括但不限于玻璃。
显示屏211b用于显示图像、视频、数据等。显示屏211b可以采用柔性显示屏，也可以采用刚性显示屏。例如，显示屏211b可以为有机发光二极管(organic light-emitting diode，OLED)显示屏，有源矩阵有机发光二极体或主动矩阵有机发光二极体(active-matrix organic light-emitting diode，AMOLED)显示屏，迷你发光二极管(mini organic light-emitting diode)显示屏，微型发光二极管(micro organic light-emitting diode)显示屏，微型有机发光二极管(micro organic light-emitting diode)显示屏，量子点发光二极管(quantum dot light emitting diodes，QLED)显示屏，液晶显示屏(liquid crystal display，LCD)
需要说明的是，本申请对屏幕211的形状不进行限定。屏幕211的显示面可以为圆形，也可以为矩形。当屏幕211的形状发生变化时，该主体部2的其他部件，例如壳体22、装饰圈212的形状，也随着屏幕211的形状而变化。以下为了方便说明，均是以屏幕211的显示面为圆形为例进行的说明。
壳体22内具有容纳空间，壳体22用于容纳和保护电子设备100的内部电子器件。请参阅图2，壳体22可以包括盖板22a和边框22b，边框22b环绕在盖板22a的外周。盖板22a与显示屏211b层叠设置。边框22b位于背盖与显示屏211b之间，且边框22b固定于盖板22a上。示例性的，边框22b可以通过粘胶固定连接于盖板22a上。边框22b也可以与盖板22a一体成型，即边框22b与盖板22a为一个整体结构。显示模组21的装饰圈212固定于边框22b上。一些实施例中，装饰圈212可以通过胶粘固定于边框22b上。壳体22内的上述容纳空间可以由屏幕211、盖板22a与边框22b围成。该容纳空间将电路板3、温度传感器4、电池等容纳在内。
电路板3是实现电子元件电气连接的载体。图4示出了本申请一些实施例的电子设备100的电路板3的剖视图。请参阅图4，电路板3包括由依次交替设置的金属层31和绝缘介质层32形成的多层布线结构，该多层布线结构具有相对的第一表面和第二表面，且该多层布线结构的金属层31包括第一金属层31a和第二金属层31b，第一金属层31a形成上述第一表面，第二金属层31b形成上述第二表面。多层布线结构的第一表面设有第一阻焊层33，多层布线结构的第二表面设有第二阻焊层34。第一阻焊层33和第二阻焊层34可以为绿色油墨或黑色油墨等。在后续焊接过程中，第一阻焊层33和第二阻焊层34可以防止焊料沉积于电路板3的表面。
进一步的，多层布线结构的金属层31还可以包括至少一个中间金属层31c，中间金属层31c位于第一金属层31a和第二金属层31b之间。第一金属层331a、第二金属层31b和中间金属层31c上可以设置信号线，该信号线可以包括正极走线35和负极走线36。在电路板3内，不同金属层31中的信号线之间采用金属化过孔实现连接。
在一些实施例中，第一金属层31a、第二金属层31b和中间金属层31c可以为铜箔层。第一金属层31a、第二金属层31b和中间金属层31c上的走线可以通过微影蚀刻的工艺加工而成。
具体的，第一阻焊层33具有第一镂空部33a，第二阻焊层34具有第二镂空部34a。第一金属层31a上的信号线的一部分可以从第一镂空部33a处露出，以便于元器件与第一金属层31a上的信号线电连接。第二金属层31b上的信号线的一部分可以从第二镂空部34a处露出，以便于元器件与第二金属层31b上的信号线电连接。
可以理解的是，电路板3可以为硬质电路板，也可以为柔性电路板，还可以为软硬结合电路板。电路板3可以采用FR-4介质板，也可以采用罗杰斯(Rogers)介质板，还可以采用FR-4和Rogers的混合介质板，等等。这里，FR-4是一种耐燃材料等级的代号，Rogers介质板为一种高频板。
电路板3上可以设有处理器301。显示屏211和温度传感器4均与处理器301电连接。这样，温度传感器4检测到的温度经处理器处理后，可以显示在显示屏211b上。
电池设在容纳空间内。电池用于向电子设备100内诸如显示屏211b、电路板3等电子器件提供电量。一些实施例中，壳体22内设有电池安装槽，电池安装于该电池安装槽内。
具体的，请参阅图4a和图4b，温度传感器4具有正极4a和负极4b，温度传感器4的正极4a与电路板3的正极走线35连接，温度传感器4的负极4b与电路板3的负极走线36连接，同时，处理器301与正极走线35和负极走线36电连接，进而可以实现温度传感器4与处理器301之间的电连接。
在一些实施例中，请参阅图4a，温度传感器4与处理器301可以设于电路板3的同一侧表面。在另一些实施例中，请参阅图4b，温度传感器4与处理器301也可以分别设于电路板3的相对两侧表面。
在一些实施例中，壳体22上设有接触件，温度传感器4与接触件之间能够热传导。接触件的至少部分表面形成电子设备100的外表面。也就是说，接触件的至少部分表面外露于壳体22。接触件形成电子设备100外表面的该部分表面可以用于与人体皮肤进行接触，该部分表面可以形成为接触面。在一些实施例中，接触面的面积可以大于等于20平方毫米，接触面可以为平面，也可以为弧面，具体可以根据人体的生理结构进行设计，以使接触面能够更好的与使用者进行接触，以便于进行热传导。
这样，当人体的皮肤接触接触件时，接触件可以吸收人体皮肤的温度，并将人体皮肤的温度传递至温度传感器4，从而可以通过温度传感器4检测出人体的温度，进而可以通过电子设备100方便地监测使用者的健康状况。由此，通过在壳体22上设置接触件，通过接触件与温度传感器4热传导连接，可以在将温度传感器4设于壳体22内的基础上，方便地检测人体的温度，提高了温度传感器4的可靠性。
可以理解的是，接触件可以设置在壳体22的盖板22a上，也可以设置在壳体22的边框22b上。请参阅图5和图6，图5为本申请另一些实施例提供的电子设备100的主体部2的结构示意图，图6是图5中所示的电子设备100的主体部2的爆炸图。在本实施例中，接触件设置在盖板22a上。接触件的外表面与盖板22a的外表面可以位于同一表面，或者接触件的外表面可以向外凸出于盖板22a的外表面。由此，便于接触件与人体皮肤接触。
在一些实施例中，请参阅图5和图6，盖板22a上设有朝向远离容纳空间的中心凸出的凸出部223，接触件设在凸出部223上。在本实施例中，接触件的外表面与凸出部223的外表面可以位于同一平面。由此，不仅便于接触件接触人体皮肤，同时在将电子设备100穿戴在手腕上时，可以增大电子设备100的盖板22a与手腕皮肤的接触面积，提高了电子设备100的舒适性。
图7为本申请一些实施例的温度传感器4的示意图。请参阅图7，为了提高温度传感器4的可靠性，通常将温度传感器4的感温元件42封装在绝缘外壳41内，并使温度传感器4的正极4a和负极4b露出绝缘外壳41，通过温度传感器4的正极4a和负极4b实现感 温元件42与电路板3之间的电连接。因此，在测温过程中，接触件吸收人体皮肤温度后，人体皮肤温度先传递至温度传感器4的绝缘外壳41，再经过绝缘外壳41传递至感温元件42。由于绝缘外壳41的导热性能较差，增加了热传导过程中的热量损失和温度传递时长，降低了温度测量的准确性和灵敏性。
为了解决上述技术问题，请参阅图8，图8是沿图5中A-A线的剖视图。本实施例中的电子设备100，电路板3的正极走线35和负极走线36中的至少一个与接触件之间能够热传导，温度传感器4用于根据正极走线35和负极走线36中的至少一个传入的温度实现温度测量。
具体而言，可以仅电路板3的正极走线35与接触件之间能够热传导，此时温度传感器4可以根据正极走线35传入的温度实现温度测量。或者，也可以仅电路板3的负极走线36与接触件之间能够热传导，此时温度传感器4可以根据负极走线36传入的温度实现温度测量。或者，还可以电路板3的正极走线35与接触件之间能够热传导且电路板3的负极走线36与接触件之间能够热传导，此时温度传感器4可以根据正极走线35和负极走线36传入的温度实现温度测量。
其中，当电路板3的正极走线35与接触件之间能够热传导时，由于温度传感器4的正极4a与正极走线35连接，接触件的温度可以经正极走线35传入温度传感器4的正极4a，进而温度传感器4可以根据传入温度传感器4的正极4a的温度实现温度测量。接触件与温度传感器4之间的热传导路径为：接触件→正极走线35→温度传感器4的正极4a→温度传感器4的感温元件42。
当电路板3的负极走线36与接触件之间能够热传导时，由于温度传感器4的负极4b与负极走线36连接，接触件的温度可以经负极走线36传入温度传感器4的负极4b，进而温度传感器4可以根据传入温度传感器4的负极4b的温度实现温度测量。接触件与温度传感器4之间的热传导路径为：接触件→负极走线36→温度传感器4的负极4b→温度传感器4的感温元件42。
这样，接触件吸收的人体皮肤热量，可以经正极走线35和负极走线36中的至少一个传入温度传感器4的感温元件42，由于正极走线35、负极走线36、温度传感器4的正极4a、温度传感器4的负极4b均为导电材料，其导热性能优于绝缘外壳41，因此，通过使电路板3的正极走线35和负极走线36中的至少一个与接触件之间能够热传导，提高了人体皮肤热量传递至温度传感器4的热传导效率，缩短了温度传递的时间，提高了温度传感器4的灵敏性，同时减小了热传导过程中的热量损失，进而提高了温度测量的准确性。
本实施例中提供的电子设备100，通过使电路板3的正极走线35和负极走线36中的至少一个与接触件之间能够热传导，使得温度传感器4能根据正极走线35和负极走线36中的至少一个传入的温度实现温度测量，提高了人体皮肤热量传递至温度传感器4的热传导效率，缩短了温度测量的时间，提高了温度传感器4的灵敏性，同时减小了热传导过程中的热量损失，提高了温度测量的准确性。
在一些实施例中，温度传感器4为数字温度传感器，例如，温度传感器4可以为CMOS数字温度传感器。数字温度传感器是一种用户无需校准的超小型、超高精度、低功耗、低电压温度传感器，通过将温度传感器4设置为数字温度传感器可以提高温度测量精度，且可以减小温度传感器4的占用空间，有利于实现电子设备100的轻薄化设计。此外，还能 降低电子设备100的能耗。
在一些实施例中，接触件的导热系数k1满足：k1≥15W/m·K。例如，接触件可以为由不锈钢材料加工而成的不锈钢件。可选的，接触件为316型不锈钢件，其导热系数为16.2W/m·K。当然，本申请并不限于此。由此，可以保证接触件的热传导性能，使得人体皮肤温度能快速地传递至接触件，并能使接触件的温度快速地传递到温度传感器4上进行检测，缩短了温度传递的时间，进而缩短了温度检测时间，提高了温度传感器4的检测灵敏性。
在一些实施例中，请参阅图8，电子设备100还包括隔热件6，隔热件6包裹在温度传感器4的至少部分外表面上。也就是说，隔热件6可以包裹温度传感器4外表面的其中一部分，也可以包裹温度传感器4的整个外表面。隔热件6可以将温度传感器4与壳体22内的其他元器件隔开，能够减少温度传感器4与外界进行的热交换，这样可以避免壳体22内的其他元器件产生的热量对温度传感器4造成影响，提高了温度传感器4测量结果的准确度。
在一些实施例中，隔热件6可以为岩棉、玻璃纤维棉或泡沫等。隔热件6可以粘接在温度传感器4的外表面上。在另一些实施例中，隔热件6也可以为隔热涂料，隔热涂料可以涂覆在温度传感器4的外表面上。可以理解的是，只要隔热件6能起到隔离温度的作用即可，本申请对隔热件6的材料不做具体限定。
在一些实施例中，温度传感器4的正极4a和负极4b通过焊盘连接至电路板3。图9a为本申请一些实施例的温度传感器4与电路板3的连接示意图，图9b为本申请一些实施例提供的温度传感器的测温过程中温度传递路径的示意图，图9b中的箭头表示温度传递方向。请参阅图9a和图9b，温度传感器4的正极4a设有正极焊脚401，温度传感器4的负极4b设有负极焊脚402。正极走线35包括正极走线本体35a、第一金属化过孔35b和第一正极焊盘35c，正极走线本体35a形成在金属层31上，第一金属化过孔35b设置在电路板3内，第一金属化过孔35b贯穿电路板3的相对两侧表面。正极走线本体35a与第一金属化过孔35b电连接，第一正极焊盘35c设置在第一金属化过孔35b的一端。温度传感器4的正极焊脚401与第一正极焊盘36c电连接以实现温度传感器4与正极走线35之间的电连接。
负极走线36包括负极走线本体36a、第二金属化过孔36b和第一负极焊盘36c，负极走线本体36a形成在金属层31上，第二金属化过孔36b设置在电路板3内，并沿电路板3的厚度方向贯穿电路板3。负极走线本体36a与第二金属化过孔36b电连接，第一负极焊盘36c设置在第二金属化过孔36b的一端且第一负极焊盘36c形成电路板3的外表面。温度传感器4的负极焊脚402与第一负极焊盘36c电连接以实现温度传感器4与负极走线36之间的电连接。由此，可以方便地实现温度传感器4与电路板3的正极走线35和负极走线36之间的电连接。
在本实施例中，接触件吸收的人体皮肤热量，可以经第一正极焊盘35c和第一负极焊盘36c中的至少一个传递至温度传感器4的正极4a和/或温度传感器4的负极4b，进而传递至温度传感器4的感温元件42。由此，可以方便地实现温度传感器4与电路板3的电连接，降低了装配难度，同时可以保证温度传感器4的灵敏性和温度测量的准确性。
在另一些实施例中，正极走线35也可以不包括第一正极焊盘35c，在该实施例中，温度传感器4的正极焊脚401可以与第一金属化过孔35b电连接以实现温度传感器4与正极 走线35之间的电连接。负极走线36也可以不包括第一负极焊盘36c，在该实施例中，温度传感器4的负极焊脚402可以与第二金属化过孔36b电连接以实现温度传感器4与负极走线36之间的电连接。这样同样可以实现温度传感器4与正极走线35和负极走线36之间的电连接，且可以简化电子设备100的结构。
进一步的，接触件和温度传感器4位于电路板3的相对两侧。请参阅图9a和图9b，温度传感器4位于电路板3的背离接触件的一侧。
请参阅图9a和图9b，正极走线35还包括第二正极焊盘35d，负极走线36还包括第二负极焊盘36d，第二正极焊盘35d和第二负极焊盘36d设置在电路板3的背离温度传感器4的一侧表面，且第二正极焊盘35d与第一正极焊盘35c相对地设在第一金属化过孔35b的两端，第二负极焊盘36d与第一负极焊盘36c相对地设在第二金属化过孔36b的两端。接触件可以与第二正极焊盘35d热传导连接，以实现接触件与正极走线35之间的热传导，和/或接触件可以与第二负极焊盘36d热传导连接，以实现接触件与负极走线36之间的热传导，进而可以将接触件的温度传递至温度传感器4的感温元件42。
由此，可以实现正极走线35和负极走线36中的至少一个与接触件之间的热传导连接，同时通过使接触件和温度传感器4位于电路板3的相对两侧，还可以减小接触件与正极走线35和/或负极走线36之间的间隙，便于实现接触件与正极走线35和/或负极走线36之间的热传导，降低了装配难度，且使得电子设备100的内部结构的布局更加合理，使得电子设备100的结构更加紧凑，有利于实现电子设备100的轻薄化设计。
可以理解的是，在另一些实施例中，正极走线35可以不包括第二正极焊盘35d，负极走线可以不包括第二负极焊盘36d。在该实施例中，接触件可以直接与第一金属化过孔35b和第二金属化过孔36b中的至少一个热传导连接，以实现接触件与正极走线35和/或负极走线36之间的热传导，进而可以将接触件的温度传递至温度传感器4的感温元件42。这样，可以实现接触件与正极走线35和/或负极走线36之间的热传导且可以简化电子设备100的结构。
在一些实施例中，电子设备100还包括绝缘导热件5，正极走线35和负极走线36中的上述至少一个与接触件通过绝缘导热件5热传导连接。请参阅图8和图9a，绝缘导热件5可以覆盖在接触件的靠近电路板3的一侧表面。绝缘导热件5的导热系数k2满足：k2≥10W/m·K。例如，绝缘导热件5可以为导热硅胶、导热硅脂、导热胶等。
具体而言，当正极走线35与接触件之间能够热传导时，可以在正极走线35和接触件之间设置绝缘导热件5。当负极走线36与接触件之间能够热传导时，可以在负极走线36和接触件之间设置绝缘导热件5。例如，在图9a的示例中，绝缘导热件5可以覆盖在第二正极焊盘35d和第二负极焊盘36d上。由此，可以通过绝缘导热件5将接触件的温度传递至正极走线35和/或负极走线36，相对于接触件与正极走线35和/或负极走线36直接连接的方案，本申请实施例中的方案能够更好地传输热量，减少热量的散发，同时，当接触件为导电件时，可以避免接触件通电，保证了电子设备100的使用安全性。
在本申请的一些实施例中，电子设备包括充电电极8和用于检测生命体征信息的检测电极7，充电电极8和检测电极7设在壳体22上，且充电电极8的至少部分表面以及检测电极7的至少部分表面形成电子设备100的外表面，充电电极8和检测电极7中的至少一个形成接触件。也就是说，可以是充电电极8形成接触件，也可以是检测电极7形成接触 件，还可以是充电电极8和检测电极7均形成接触件。
充电电极8可以与电子设备100的电池电连接，这样当充电电极8连接外部电源时，可以通过充电电极8对电池进行充电。在一些实施例中，请返回参阅图5和图6，充电电极8包括正电极81和负电极82。正电极81和负电极82均可以形成为圆柱体状结构，但不限于此。
具体的，请返回参阅图6，壳体22上设有第一过孔224和第二过孔225，正电极81穿设在第一过孔224内，负电极82穿设在第二过孔225内，正电极81的外表面和负电极82的外表面均形成电子设备100的外表面。这样便于充电电极8与外部电源接触，且便于正电极81和负电极82与电池电连接。
可以理解的是，当接触件为充电电极8时，可以将正电极81和负电极82中的其中一个作为用于与温度传感器4热传导的接触件。或者，也可以将正电极81和负电极82均作为用于与温度传感器4热传导的接触件，这样可以增大接触件与人体皮肤接触的面积。
用于检测生命体征信息的检测电极7可以用于检测人体的生命体征信息。检测电极7可以与处理器301电连接，检测电极7检测到使用者的生命体征信息后，经处理器处理后，可以显示在显示屏211b上。由此，可以方便地检测使用者的生命体征信息，进而可以方便地监测使用者的健康状况。
例如，在本申请的一些实施例中，检测电极7可以为心电图(electro cardio gram，ECG)电极。由此，可以方便地获得使用者的心电图信息，进而可以方便地监测使用者的健康状况。ECG电极的检测数据是根据ECG电极采集到的人体皮肤的电信号生成的。ECG电极的检测数据用于表征人体的两个肢体之间，例如左上肢与右上肢之间、左下肢与右上肢之间或者左下肢与左上肢之间的电位差。由于检测电极7的面积较大，将检测电极7作为温度传感器4的接触件，可以增大接触件与人体皮肤接触的面积，从而可以提高接触件与温度传感器4之间的热传导效率，并能减小测量误差。
由此，在申请的实施例中，通过将电子设备100的充电电极8和检测电极7中的至少一个作为温度传感器4的接触件，通过充电电极8或检测电极7将人体皮肤的温度传递至温度传感器4，当电子设备100上设有充电电极8或者检测电极7时，无需额外设置用于与温度传感器4进行热传导的接触件，节省了接触件的占用空间，从而节省了电子设备100的整机设计空间，进而可以在不增大盖板22a面积的前提下，将更多的检测装置集成在电子设备100上，丰富了电子设备100的功能。同时，还可以减少壳体22上的开孔数量，提高了电子设备100的防水性能。
在本申请的一些实施例中，接触件的阻抗Z满足：Z≤1Ω。其中，在具有电阻、电感和电容的电路里，对电路中的电流所起的阻碍作用叫做阻抗。例如，接触件可以为不锈钢件、铜件等。在本实施例中，通过将接触件的阻抗设置为小于1Ω，在接触件为充电电极8或检测电极7时，不仅保证了人体皮肤的温度能快速传输到温度传感器4上，提高温度传感器4的灵敏性和温度测量的准确性，也保证了充电电极8或检测电极7的优良质量信号。
在一些实施例中，检测电极7包括第一电极71和第二电极72，第一电极71与第二电极72均设在壳体22上且彼此间隔开设置，第一电极71的至少部分和第二电极72的至少部分外露于壳体22，且第一电极71外露于壳体22的部分与第二电极72外露于壳体22的部分围成环形结构。由于第一电极71和第二电极72间隔开设置，该环形结构为不连续的、 具有间断部位的环形结构。该环形结构可以为方环形、圆环形、椭圆环形等。例如，请返回参照图5，第一电极71和第二电极72均形成为弧形，第一电极71和第二电极72围成圆环形结构。
由此，通过将第一电极71和第二电极72围成环形结构，可以增大第一电极71和第二电极72与人体的接触面积，同时环状结构可以提高检测电极7与人体接触的稳定性，从而可以提高检测电极7的检测结果的准确性。
另外，当检测电极7为ECG电极时，即第一电极71和第二电极72均为ECG电极，将第一电极71和第二电极72间隔开设置，可以提高ECG电极的共模抑制(common mode rejection，CMR)性能，从而提高了ECG电极的抗干扰性能，进而进一步地提高了ECG电极的信号质量，使得检测结果更加准确。其中，共模抑制是指抵消任何两端共模信号(两端输入点位相同)，同时放大差模信号(两端的电位差)的特性。
具体的，当第一电极71和第二电极72均为ECG电极时，检测电极7还包括第三电极73，该第三电极也是ECG电极。示例性的，请参阅图6，第三电极73可以设置在边框22b或者装饰圈212上。可以理解的是，第一电极71可以为ECG正电极，第二电极72可以为驱动电极，第三电极72可以为ECG负电极。
例如，当第一电极71为ECG正电极，第三电极72为ECG负电极时，当使用者的一只手腕穿戴上电子设备100后，手腕的皮肤与电子设备100的盖板22a接触，即可接触ECG正电极，另一只手按住边框22b或装置圈212，即可接触ECG负电极，从而使人体与电子设备100之间形成回路，进而可以采集到ECG检测数据。若用户左手穿戴上电子设备100，右手按住边框22b或装饰圈212上的ECG电极，即可使左手接触ECG正电极，右手接触ECG负电极，在人体与电子设备100之间形成回路，进而可以获取表征左上肢与右上肢之间的电位差的电信号。
请参阅图6，第一电极71包括第一本体部711和第一凸起部712，第一凸起部712设在第一本体部711的内表面上。第二电极72包括第二本体部721和第二凸起部722，第二凸起部722设在第二本体部721的内表面上。第一本体部711的“内表面”指的是第一本体部711朝向容纳空间的一侧表面。第二本体部721的“内表面”指的是第二本体部721朝向容纳空间的一侧表面。
盖板22a的外表面上设有第一嵌入槽221和第二嵌入槽222，第一嵌入槽221具有与容纳空间连通的第一连通孔221a，第二嵌入槽222具有与容纳空间连通的第二连通孔222a。第一电极71的第一本体部711设在第一嵌入槽221内且第一电极71的第一凸起部712经第一连通孔221a伸入容纳空间内。第二电极72的第二本体部721设在第二嵌入槽222内且第二电极72的第二凸起部722经第二连通孔222a伸入容纳空间内。由此，通过设置第一嵌入槽221和第二嵌入槽222，可以方便地将第一电极71和第二电极72装配在壳体22上，使得第一电极71和第二电极72的位置更加稳定，同时，通过在第一嵌入槽221上设置第一连通孔221a、在第二嵌入槽222上设置第二连通孔222a，便于实现第一电极71以及第二电极72与电路板3之间的电连接。
进一步的，第一电极71和第二电极72关于主体部2沿X轴方向的中心轴线或Y轴方向的中心轴线轴对称设置。这样，可以使得第一电极71和第二电极72的分布更加均匀，进而可以进一步地提高检测电极7与使用者接触的稳定性，以使检测结果更加准确。同时， 还可以使得电子设备100的外观更加美观。
在一些实施例中，充电电极8的正电极81与负电极82位于环形结构的延伸路径本身或者该延伸路径的延长线上。由此，通过将充电电极8的正电极81和负电极82设置在环形结构的延伸路径上，可以合理地利用壳体22的空间，使得电子设备100的整体布局更加合理，进而可以将充电电极8、检测电极7均集成在壳体22上，使得电子设备100的功能更加丰富多样。
在一些实施例中，请返回参阅图5和图6，第一电极71具有第一端71a和第二端71b，第二电极72具有第三端72a和第四端72b，第一电极71的第一端71a和第二电极72的第三端72a相对且间隔开设置以形成第一间隔区域226，第一电极71的第二端71b和第二电极72的第四端72b相对且间隔开设置以形成第二间隔区域227。第一间隔区域226和第二间隔区域227位于上述延伸路径的延长线上。
充电电极8的正电极81和负电极82中的其中一个可以设置在第一间隔区域226内，充电电极8的正电极81和负电极82中的另一个可以设置在第二间隔区域227内。当然，充电电极8的正电极81和负电极82也可以均设置在第一间隔区域226或第二间隔区域227内。由此，可以充分利用第一电极71和第二电极72之间的间隔区域来布置充电电极8，充分、合理地利用了壳体22的空间，且简化了第一电极71和第二电极72的加工工艺，有利于提高加工效率。
在另一些实施例中，请参阅图10，图10示出了本申请另一些实施例的电子设备100的主体部2的立体图。图10中所示的电子设备100的主体部2的结构与图5中所示的电子设备100的主体部2的区别在于：在图10的示例中，正电极81和负电极82位于环形结构的延伸路径本身上。
请参阅图10，第一电极71上设有第一避让孔71c，第二电极72上设有第二避让孔72c，这样，可以将正电极81和负电极82分别布置在第一避让孔71c和第二避让孔72c处。由此，同样可以合理地利用壳体22的空间，使得电子设备100的整体布局更加合理，进而可以将充电电极8、检测电极7均集成在壳体22上，使得电子设备100的功能更加丰富多样。
在本申请的一些实施例中，请参阅图2、图5和图10，电子设备100还包括光电容积描记(photo plethysmo graphy，PPG)检测装置，PPG检测装置的检测光窗228位于环形结构的内侧。PPG检测装置用于检测被测对象的PPG信号，可以获得被测置的检对象的脉搏等健康数据。检测光窗228为形成在壳体22上的透光区域。例如，可以在环形结构的内侧设置透光玻璃以形成检测光窗228。PPG检测装置发出的光线可以透过检测光窗228照射到人体皮肤表面，同时，照射到人体皮肤表面的光线经过人体血液和肌肉组织400等吸收后的反射光可以透过检测光窗228被PPG检测装置接收。
PPG检测装置是一种红外无损检测技术，利用光电传感器,检测经过人体血液和肌肉组织400等吸收后的反射光强度的不同，而描记出血管容积在心动周期内的变化，从而得到脉搏波形，然后计算出心率。
图11示出了PPG检测装置的检测过程示意图。请参阅图11，PPG检测装置包括发光元件91和光检测器92，发光元件91和光检测器92可以设置在容纳空间内并分别与处理器电连接，且发光元件91和光检测器92均与检测光窗228相对。
这样，当发光元件91发射一定波长的光束时，该光束可以透过检测光窗228照射到人体皮肤表面(例如手腕皮肤)，每次心跳时，血管的收缩和扩张都会影响光的透射或是光的反射。当光线透过皮肤组织200再经检测光窗228反射到光检测器92时，光照会有一定的衰减。像肌肉组织400、骨骼、静脉和其他连接组织对光的吸收是基本不变的(若测量部位没有大幅度的运动)，但是动脉300会不同，由于动脉300里有血液的脉动，那么对光的吸收自然也会有所变化。因此，光检测器92将经过人体反射和/或透射后的光信号转换成电信号后，由于动脉300对光信号的吸收有变化而其他组织对光信号的吸收基本不变，得到的信号就可以分为直流DC信号和交流AC信号，从中提取AC信号，就能反应出血液流动的特点，从而可以得到脉搏波形，然后计算出心率。可以理解的是，结合PPG检测装置的检测数据和ECG电极73的检测数据，还能计算出血压值。
由此，通过将PPG检测装置的检测光窗228设置在上述环形结构的内侧，可以合理地利用壳体22的空间，使得电子设备100的整体结构更加紧凑，从而可以在不增加盖板22a面积的基础上，将PPG检测装置的检测光窗228、ECG电极73、充电电极8和温度传感器4的接触件均集成在电子设备100的盖板22a上，使得电子设备100可以同步检测使用者的PPG检测数据、ECG检测数据和体温检测数据，进而可以获取使用者的脉搏、心率、血压、心电图等反映身体健康情况的数据，此外还可以结合ECG检测数据和体温检测数据对使用者的情绪和紧张感进行判断，以更加全面地监测使用者的健康情况。
在一些实施例中，检测光窗228的面积与该环形结构内侧的面积大体相同。由此，可以增大检测光窗228的检测面积，保证了PPG检测装置的光线不被遮挡，提高了PPG检测装置的检测准确度。
本申请提供的电子设备100可以穿戴于手腕上，或者放置于额头、腋下等位置，并借助接触件与人体皮肤接触，以实现人体的温度检测。具体的，当用户使用该电子设备100进行体温检测时，可以通过电子设备100实时检测人体体温，例如可以每间隔预定时间检测一次人体体温，以实时监测人体的体温情况。上述预定时间可以为1min、3min、5min、10min、30min、60min等。用户可以根据实际需要调整预定时间，本申请对此不作限定。或者，用户也可以通过触发启动开关，手动启动温度检测功能，实现对人体体温的检测。
在本说明书的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (15)

  1. 一种电子设备，其特征在于，包括：
    壳体，所述壳体具有容纳空间；
    接触件，所述接触件设在所述壳体上，且所述接触件的至少部分表面形成所述电子设备的外表面；
    温度传感器，所述温度传感器设置于所述容纳空间内，且所述温度传感器具有正极和负极；
    电路板，所述电路板设置于所述容纳空间内，所述电路板上设有正极走线和负极走线，所述正极走线与所述温度传感器的正极连接、所述负极走线与所述温度传感器的负极连接，所述正极走线和所述负极走线中的至少一个与所述接触件之间热传导连接，所述温度传感器用于根据所述正极走线和所述负极走线中的至少一个传入的温度实现温度测量。
  2. 根据权利要求1所述的电子设备，其特征在于，所述接触件的导热系数k1满足：k1≥15W/m·K。
  3. 根据权利要求1或2所述的电子设备，其特征在于，还包括绝缘导热件，所述正极走线和所述负极走线中的所述至少一个与所述接触件通过所述绝缘导热件热传导连接。
  4. 根据权利要求3所述的电子设备，其特征在于，所述绝缘导热件的导热系数k2满足：k2≥10W/m·K。
  5. 根据权利要求1-4中任一项所述的电子设备，其特征在于，还包括隔热件，所述隔热件包裹在所述温度传感器的至少部分外表面上。
  6. 根据权利要求1-5中任一项所述的电子设备，其特征在于，所述接触件和所述温度传感器位于所述电路板的相对两侧。
  7. 根据权利要求6所述的电子设备，其特征在于，所述电路板包括由依次交替设置的金属层和绝缘介质层形成的多层布线结构，
    所述正极走线包括正极走线本体、第一金属化过孔，所述正极走线本体形成在所述金属层上，所述第一金属化过孔贯穿所述电路板的相对两侧表面，所述正极走线本体与所述第一金属化过孔电连接；
    所述负极走线包括负极走线本体、第二金属化过孔，所述负极走线本体形成在所述金属层上，所述第二金属化过孔贯穿所述电路板的相对两侧表面，所述负极走线本体与所述第二金属化过孔电连接；
    所述第一金属化过孔和所述第二金属化过孔的至少一个与所述接触件热传导连接。
  8. 根据权利要求7所述的电子设备，其特征在于，所述正极走线还包括第一正极焊盘和第二正极焊盘，所述第一正极焊盘和所述第二正极焊盘相对地设置在所述第一金属化过孔的两端，所述第一正极焊盘与所述温度传感器的正极电连接；
    所述负极走线还包括第一负极焊盘和第二负极焊盘，所述第一负极焊盘和第二负极焊盘相对地设置在所述第二金属化过孔的一端，所述第一负极焊盘与所述温度传感器的负极电连接；
    所述第二正极焊盘和所述第二负极焊盘中的至少一个与所述接触件热传导连接。
  9. 根据权利要求1-8中任一项所述的电子设备，其特征在于，包括充电电极和用于检测生命体征信息的检测电极，所述充电电极和所述检测电极设在所述壳体上，且所述充电电极的至少部分表面以及所述检测电极的至少部分表面形成所述电子设备的外表面；
    所述充电电极和所述检测电极中的至少一个形成所述接触件。
  10. 根据权利要求9所述的电子设备，其特征在于，所述接触件的阻抗Z满足：Z≤1Ω。
  11. 根据权利要求8或9所述的电子设备，其特征在于，所述检测电极包括第一电极和第二电极，所述第一电极与所述第二电极均设在所述壳体上且彼此间隔开设置，所述第一电极的至少部分和所述第二电极的至少部分外露于所述壳体，且所述第一电极外露于所述壳体的部分与所述第二电极外露于所述壳体的部分围成环形结构。
  12. 根据权利要求9-11中任一项所述的电子设备，其特征在于，所述检测电极用于检测心电图的心电图电极。
  13. 根据权利要求9-12中任一项所述的电子设备，其特征在于，所述充电电极包括正电极和负电极，所述正电极与所述负电极位于所述环形结构的延伸路径本身或所述延伸路径的延长线上。
  14. 根据权利要求11-13中任一项所述的电子设备，其特征在于，还包括光电容积描记检测装置，所述光电容积描记检测装置的检测光窗位于所述环形结构的内侧。
  15. 根据权利要求1-14中任一项所述的电子设备，其特征在于，所述壳体包括盖板，所述盖板上设有朝向远离所述容纳空间的中心凸出的凸出部，所述接触件设在所述凸出部上。
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