Detection device, electronic equipment and control method thereof

Abstract

The embodiment of the invention provides a detection device, electronic equipment and a control method thereof, relates to the technical field of data detection, and aims to solve the problem that equipment with a health sign detection function is large in size. The detection device comprises a first circuit board, a light-emitting device, a photoelectric converter, a metal cover plate and a light-transmitting structure. The photoelectric converter and the light-emitting device are arranged on the same side of the first circuit board and are electrically connected with the first circuit board. The metal cover plate covers the first circuit board and is electrically connected with the first circuit board. The metal cover plate is provided with a first light through hole for exposing the light-emitting device and a second light through hole for exposing the photoelectric converter. The light-transmitting structure is filled in the first light-transmitting hole, the second light-transmitting hole and the accommodating cavity, wraps the light-emitting device and the photoelectric converter, and is connected with the light-emitting device, the photoelectric converter, the first circuit board and the metal cover plate to form an integrated structural member, so that the size of the detection device is reduced.

Description

Technical Field

[0001] The present application relates to the field of data detection technology, and in particular to a detection device, an electronic device and a control method thereof. Background Art

[0002] With the continuous improvement of living standards, users have higher and higher functional requirements for electronic devices. Devices with integrated human health sign detection functions can timely detect the user's health sign data, such as heart rate, blood oxygen, electrocardiogram, blood pressure, etc., so that users can understand their physical condition at any time and play a role in preventing diseases. However, the size of the devices with the above health sign detection function is relatively large, which is not conducive to the development trend of device miniaturization and portability. Summary of the invention

[0003] The present application provides a detection device, an electronic device and a control method thereof, which are used to solve the problem that the device with a health sign detection function has a large size.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In one aspect of the present application, a detection device is provided, which includes a first circuit board, a light-emitting device, a photoelectric converter, a metal cover plate and a light-transmitting structure. The light-emitting device is arranged on the first circuit board, and the light-emitting device is electrically connected to the first circuit board. The photoelectric converter and the light-emitting device are arranged on the same side of the first circuit board, and the photoelectric converter is electrically connected to the first circuit board. In addition, the metal cover plate is arranged on the first circuit board, and the metal cover plate is electrically connected to the first circuit board. A receiving cavity is formed between the metal cover plate and the first circuit board, and the light-emitting device and the photoelectric converter are arranged in the receiving cavity. The metal cover plate is provided with a first light-through hole and a second light-through hole that penetrate the metal cover plate, the first light-through hole exposes the light-emitting surface of the light-emitting device, and the second light-through hole exposes the light-receiving surface of the photoelectric converter. The light-transmitting structure is filled in the first light-through hole, the second light-through hole and the receiving cavity, the light-transmitting structure wraps the light-emitting device and the photoelectric converter, and is connected to the light-emitting device, the photoelectric converter, the first circuit board and the metal cover plate as an integrated structural member.

[0006] In summary, in the detection device provided by the embodiment of the present application, the light emitting device and the photoelectric converter are covered in the metal cover plate, and the light-transmitting structure can cover the light-emitting surface of the light emitting device and the light-receiving surface of the photoelectric converter, so as to ensure the normal operation of the light emitting device and the photoelectric converter. In addition, the light-transmitting structure can also cover the side of the light emitting device and the photoelectric converter. Therefore, the light emitting device and the photoelectric converter, except for the surface facing the first circuit board, can be covered by the above-mentioned light-transmitting structure, so that the light-transmitting structure can wrap the light emitting device and the photoelectric converter, and then the light-transmitting structure can be connected to the light emitting device, the photoelectric converter, the first circuit board and the metal cover plate as an integral structural member. Based on this, the detection device provided by the embodiment of the present application can connect the metal cover plate as an ECG electrode with the light emitting device and the photoelectric converter through the light-transmitting structure embedded in the metal cover plate, so there is no need to set a bracket for covering the light emitting device and the photoelectric converter in the detection device, and the glue layer and transparent plate stacked on the bracket. In this way, the detection device does not need to consider the size requirements of the glue layer and the transparent plate in terms of length, width and height, so the size of the detection device can be reduced, so as to achieve the purpose of miniaturization design of the detection device. In this case, when the detection device with the above-mentioned miniaturized design is applied to electronic equipment, it is helpful to reduce the size of the electronic equipment, thereby alleviating the problem of the large size of the device with the health sign detection function.

[0007] In an optional embodiment, the detection device includes a first pressure rod, a deformable sheet and a pressure-sensitive element. The first pressure rod is arranged on the side of the first circuit board away from the metal cover plate, and the first end of the first pressure rod is abutted or connected to the first circuit board. The deformable sheet is arranged on the side of the first pressure rod away from the first circuit board, and the deformable sheet has a first cantilever end and a fixed end, the first cantilever end is abutted or connected to the second end of the first pressure rod, and the fixed end is used to fix the deformable sheet. The pressure-sensitive element covers at least a portion of the first cantilever end, and the pressure-sensitive element is electrically connected to the first circuit board. In this way, when the user's finger presses the metal cover plate downward, the external force applied by the user can be transmitted to the first circuit board through the metal cover plate, and then transmitted to the first pressure rod located below the first circuit board through the first circuit board. Since the first pressure rod abuts or is connected to the first cantilever end of the deformable sheet, the fixed end of the deformable sheet fixes the deformable sheet to a component, such as a middle frame, so that under the pressing action of the first pressure rod, the first cantilever end of the deformable sheet can be deformed downward. In addition, since the pressure sensitive element covers at least a portion of the first cantilever end, the pressure sensitive element can utilize the piezoelectric sensing principle to convert the deformation of the first cantilever end into an electrical signal, and transmit it to the first circuit board electrically connected to the pressure sensitive element to detect the user's pressing force.

[0008] In an optional embodiment, the pressure-sensitive element is disposed on the side of the deformation piece facing the metal cover plate, and the detection device further includes a mounting column, which is located on the side of the deformation piece facing away from the metal cover plate, and the first end of the mounting column is connected to the fixed end, and the second end of the mounting column is used to fix the detection device. For example, the entire detection device can be fixed to the middle frame through the second end of the mounting column. In this way, since the pressure-sensitive element is disposed on the side of the deformation piece facing the metal cover plate, it will not affect the setting position of the mounting column. In addition, since the first end of the mounting column is connected to the fixed end of the deformation piece, the fixed end of the deformation piece can be fixed.

[0009] In an optional embodiment, the pressure-sensitive element includes a resistance strain gauge, and the portion of the resistance strain gauge covering the first cantilever end has a first resistor and a second resistor. The detection device also includes a third resistor and a fourth resistor. Among them, the first resistor and the second resistor are connected in series to form a first circuit; the third resistor and the fourth resistor are connected in series to form a second circuit, the first circuit and the second circuit are connected in parallel to form a first full-bridge circuit, and the first full-bridge circuit is electrically connected to the first circuit board. In this way, when the user presses the metal cover of the detection device, the first cantilever end of the deformation piece will be deformed. In this case, the resistance values ​​of the first resistor and the second resistor in the pressure-sensitive element covering the first cantilever end will change, and then the voltage output by the first full-bridge circuit will change, which will match the pressure of the user pressing the metal cover, so that the purpose of detecting the user's pressing pressure, such as the first pressure value, can be achieved by obtaining the above-mentioned voltage difference.

[0010] In an optional embodiment, the deformable sheet also has a second cantilever end, and the fixed end is located between the first cantilever end and the second cantilever end. The pressure-sensitive element covers at least a portion of the second cantilever end. The detection device also includes a second pressure rod, which is arranged on the side of the first circuit board away from the metal cover plate, the first end of the second pressure rod abuts or is connected to the first circuit board, and the second end of the second pressure rod abuts or is connected to the second cantilever end. In this way, when the user's finger presses the metal cover plate downward, the external force applied by the user can be transmitted to the first circuit board through the metal cover plate, and then transmitted to the first pressure rod and the second pressure rod located below the first circuit board through the first circuit board. Since the first pressure rod and the second pressure rod abut or are connected to the first cantilever end and the second cantilever end of the deformable sheet respectively, the fixed end located between the first cantilever end and the second cantilever end in the deformable sheet fixes the deformable sheet to a component, such as a middle frame, so that under the pressing action of the first pressure rod and the second pressure rod, the first cantilever end and the second cantilever end of the deformable sheet can be deformed downward. In addition, since the pressure-sensitive element covers at least a portion of the first cantilever end and at least a portion of the second cantilever end, the pressure-sensitive element can utilize the piezoelectric induction principle to convert the deformation of the first cantilever end and the second cantilever end into an electrical signal, and transmit it to the first circuit board electrically connected to the pressure-sensitive element, so as to detect the user's pressing force. As can be seen from the above, when the user presses the metal cover of the detection device, the processor of the electronic device can compare the deformation of the first cantilever from the deformation sheet and the deformation of the second cantilever end, and then judge whether the user's pressing position is in the middle of the metal cover, so as to improve the detection accuracy. Therefore, the above detection device can be called a dual-channel detection structure.

[0011] In an optional embodiment, the deformation piece also has a second cantilever end, and the second cantilever end is located on the side of the first cantilever end away from the fixed end, and there is a gap between the first cantilever end and the second cantilever end. The pressure sensitive element covers at least a portion of the second cantilever end. The second end of the first pressure rod is also abutted or connected to the second cantilever end. In this way, by setting a pressure rod, that is, the first pressure rod can press the first cantilever end and the second cantilever end at the same time, thereby driving the first cantilever end and the second cantilever end to deform at the same time, thereby achieving the purpose of dual-channel pressure detection.

[0012] In an optional embodiment, the pressure-sensitive element includes a resistance strain gauge. The portion of the resistance strain gauge covering the second cantilever end has a fifth resistor and a sixth resistor. The fifth resistor and the sixth resistor are connected in series to form a third circuit, the second circuit and the third circuit are connected in parallel to form a second full-bridge circuit, and the second full-bridge circuit is electrically connected to the first circuit board. In this way, when the user presses the metal cover of the detection device, the second cantilever end of the deformation plate will be deformed. In this case, the resistance values ​​of the fifth resistor and the sixth resistor in the pressure-sensitive element covering the second cantilever end will change, thereby changing the voltage output by the second full-bridge circuit, which matches the pressure of the user pressing the metal cover, so that the purpose of detecting the user's pressing pressure, such as the second pressure value, can be achieved by obtaining the above-mentioned voltage difference. As can be seen from the above, when the user presses the metal cover of the detection device, the user pressing pressure detected by the first full-bridge circuit, for example, the first pressure value comes from the deformation of the first cantilever end of the deformation piece, and the user pressing pressure detected by the second full-bridge circuit, for example, the second pressure value comes from the deformation of the second cantilever end of the deformation piece. The first cantilever end and the second cantilever end are respectively located on both sides of the fixed end. Therefore, the processor of the electronic device can judge whether the user's pressing position is in the middle of the metal cover by comparing the difference between the first pressure value and the second pressure value, so as to improve the detection accuracy. Therefore, the above detection device can be called a dual-channel detection structure.

[0013] In an optional embodiment, the first circuit board includes a flexible circuit board and a support plate. The support plate is arranged on the side of the flexible circuit board facing away from the metal cover plate, and the support plate is connected to or abuts against the first pressure bar. The rigidity of the support plate is greater than the rigidity of the flexible circuit board, so that it can provide support. In addition, when the user presses the metal cover plate, the force transmitted to the first circuit board can be transmitted to the first pressure bar through the support plate. Alternatively, the first circuit board includes a printed circuit board. When the user presses the metal cover plate, the force transmitted to the first circuit board can be transmitted to the first pressure bar.

[0014] In an optional embodiment, the detection device also includes a first metal electrode sheet, which is arranged on the side of the support plate away from the metal cover plate, and the first metal electrode sheet is electrically connected to the flexible circuit board. The pressure-sensitive element is located between the deformation plate and the metal support plate, and the pressure-sensitive element includes a second metal electrode sheet, and a capacitor is formed between the second metal electrode sheet and the first metal electrode sheet. In this way, when the user presses the metal cover plate of the detection device, the distance between the above two metal electrodes changes, thereby changing the capacitance value of the capacitor, and the capacitance value matches the pressing pressure of the user, thereby achieving the purpose of detecting the pressing pressure of the user.

[0015] In an optional embodiment, the support plate includes a metal material. The pressure-sensitive element is located between the deformable sheet and the support plate, and the pressure-sensitive element includes a metal coil. In this case, a current can be passed through the coil. When the user presses the metal cover of the detection device, the distance between the support plate and the pressure-sensitive element changes, thereby changing the magnetic field generated by the coil, so that the impedance of the coil changes. The above impedance can match the pressure of the user to achieve the purpose of detecting the user's pressing pressure.

[0016] In an optional embodiment, the detection device further includes a conductive silicone, which is disposed between the metal cover plate and the first circuit board, wherein the first end of the conductive silicone is electrically connected to the metal cover plate, and the second end of the conductive silicone is electrically connected to the first circuit board. In this case, the two ends of the conductive silicone can be welded to the pads of the metal cover plate and the first circuit board respectively through a welding process, so that the metal cover plate can be electrically connected to the first circuit board through the conductive silicone, thereby realizing signal interconnection between the conductive silicone and the first circuit board.

[0017] In an optional embodiment, the detection device further includes a conductive adhesive, which is disposed between the metal cover plate and the first circuit board, and is bonded to the metal cover plate and the copper leakage portion of the first circuit board, and is electrically connected to the metal cover plate and the first circuit board. In this case, the portion of the first circuit board that is electrically connected to the conductive adhesive may not need to be provided with a solder pad, and the conductive adhesive may be bonded to the copper leakage portion of the first circuit board, and the side of the conductive adhesive that is away from the copper leakage portion may be bonded to the metal cover plate, so that the metal cover plate may be able to achieve signal interconnection with the first circuit board through the conductive adhesive.

[0018] In an optional embodiment, the detection device also includes a metal shrapnel, which is arranged in the accommodating cavity. The first end of the metal shrapnel is welded to the metal cover plate, and the second end of the metal shrapnel is in contact with the copper leakage part of the first circuit board. In the process of the second end of the metal shrapnel abutting the copper leakage part of the first circuit board, the metal shrapnel can be elastically deformed, and the deformed metal shrapnel can be in closer contact with the copper leakage part of the first circuit board. Alternatively, the second end of the metal shrapnel is welded to the first circuit board, and the first end of the metal shrapnel is in contact with the metal cover plate. Similarly, in the process of the first end of the metal shrapnel abutting the metal cover plate, the metal shrapnel can be elastically deformed, and the deformed metal shrapnel can be in closer contact with the metal cover plate. In this way, the metal cover plate can achieve signal interconnection with the first circuit board through the metal shrapnel.

[0019] In an optional embodiment, the metal cover plate includes a metal cover plate body and a light-shielding baffle. The metal cover plate body is covered on the first circuit board, and the metal cover plate body is electrically connected to the first circuit board. The metal cover plate body is provided with a first light-through hole and a second light-through hole which are spaced apart. The light-shielding baffle is arranged in the accommodating cavity, and the light-shielding baffle is connected to the metal cover plate body and the first circuit board. The light-shielding baffle is located between the first light-through hole and the second light-through hole, and separates the light-emitting device from the photoelectric converter. In this way, since the light-shielding baffle is made of metal material, the light-shielding baffle has a light-shielding property, so the light-shielding baffle between the light-emitting device and the photoelectric converter can reduce or even prevent the light emitted by the light-emitting device from directly incident on the light-emitting converter, thereby reducing the optical crosstalk between the light-emitting device and the photoelectric converter, and improving the detection accuracy of the photoelectric converter.

[0020] In an optional embodiment, the detection device may further include a light-shielding connection layer, which is disposed between the metal cover plate and the first circuit board, and the light-shielding connection layer is connected to the metal cover plate and the first circuit board. In this way, the bottom of the metal cover plate can be bonded to the first circuit board through the light-shielding connection layer, thereby reducing or preventing the light emitted by the light-emitting device from leaking from the bottom of the metal cover plate, thereby improving the utilization rate of the light.

[0021] In an optional embodiment, the surface of the light-transmitting structure away from the first circuit board is spliced ​​with the surface of the metal cover away from the first circuit board to form an arc surface. In this way, the surface of the light-transmitting structure away from the first circuit board can smoothly transition to the intersection of the surface of the metal cover away from the first circuit board, thereby improving the comfort of the user's pressing.

[0022] In an optional embodiment, the detection device includes a metal coating, and the metal coating covers the surface of the metal cover plate away from the first circuit board. In this way, the material of the metal coating can be used to decorate the appearance. In addition, the conductivity of the metal cover plate and the metal coating can be the same or different. In this case, the above-mentioned ECG electrode can include a metal cover plate and a metal coating.

[0023] In an optional embodiment, the light emitting device includes a first light emitting component, which is used to emit at least one of red light or infrared light, and there is a first distance d1 between the first light emitting component and the photoelectric converter. The wavelength of the red light emitted by the first light emitting component and the infrared light emitted by the second light emitting component is longer, and can reach the subcutaneous tissue, thereby detecting the blood volume of the blood in the artery. Among them, the red light is mainly absorbed by the oxygenated hemoglobin in the blood, and the infrared light is mainly absorbed by the hemoglobin and deoxyhemoglobin in the blood. Therefore, the above-mentioned processor can use the absorption difference of the red light and the infrared light collected by the photoelectric converter 23 to calculate the blood oxygen saturation by measuring the ratio of hemoglobin and oxygen in the blood, thereby obtaining blood oxygen data. In addition, the second light emitting component is used to emit at least one of yellow light, green light and blue light, and there is a second distance d2 between the second light emitting component and the photoelectric converter, d1>d2. The wavelength of the blue light or green light emitted by the second light emitting component is shorter, and can reach the surface skin, so the blood volume of the blood in the capillaries can be detected. The yellow light emitted by the second light-emitting component can reach the dermis, thereby detecting the blood volume in the arterioles.

[0024] In an optional embodiment, when the first spacing d1 satisfies the range of 3.5mm≤d1≤5.5mm, the light emitted by the first light-emitting component can be more fully and easily received by the photoelectric converter after being reflected by the user's skin, so that the signal collected by the photoelectric converter can be more accurate, and the above-mentioned PPG data obtained by the electronic device can be more accurate. When the second spacing d2 satisfies the range of 3.0mm≤d1≤4.5mm, the above-mentioned PPG data obtained by the electronic device can be more accurate. In an optional embodiment, the light-transmitting structure includes a resin material, and the first circuit board, the light-emitting device, the photoelectric converter, the metal cover plate and the light-transmitting structure are injection-molded integrated structural parts. In this way, it can be formed into an injection-molded integrated structural part through a one-time processing process, such as an injection molding process. The injection-molded integrated structural part may include a light-emitting device, a photoelectric converter, a first circuit board, a metal cover plate and a light-transmitting structure of a detection device. The light-transmitting structure can not only connect the light-emitting device and the photoelectric converter to the metal cover plate and the first circuit board, but also wrap the surface and periphery of the light-emitting device and the photoelectric converter, thereby encapsulating the light-emitting device and the photoelectric converter, reducing the impact of external water vapor and impurities on the performance of the light-emitting device and the photoelectric converter, and improving the waterproof and dustproof reliability of the entire detection device.

[0025] In an optional embodiment, the detection device includes a plurality of raised structures, which are arranged on the surface of the metal cover plate away from the first circuit board. The user can clearly feel the concave and convex feeling of the touch surface during the pressing process, and the position of the raised structure can match the preset pressing position, so as to guide the user to press to the preset position, thereby achieving the purpose of improving the detection accuracy.

[0026] In another aspect of an embodiment of the present application, an electronic device is provided, which may include a middle frame and any one of the above-mentioned detection devices. The detection device is connected to the middle frame, and a mounting groove is provided on the outer surface of the middle frame. The first circuit board, the light-emitting device, the photoelectric converter, the metal cover plate and the light-transmitting structure are located in the mounting groove, and the first circuit board is close to the bottom of the mounting groove relative to the metal cover plate. The above-mentioned electronic device has the same technical effect as the detection device provided in the above-mentioned embodiment, which will not be repeated here.

[0027] In an optional embodiment, a first mounting hole penetrating the middle frame is provided at the bottom of the mounting groove. The detection device includes a deformable sheet and a mounting column. In addition, the electronic device includes an elastic layer and a first clamping ring. Among them, the deformable sheet is located in the mounting groove, and the deformable sheet has a fixed end. The mounting column is located on the side of the deformable sheet away from the metal cover plate, and penetrates the first mounting hole, the first end of the mounting column is connected to the fixed end, and the second end of the mounting column extends out of the first mounting hole and is located in the middle frame. In addition, the elastic layer is located in the mounting groove, and the elastic layer is arranged between the deformable sheet and the bottom of the mounting groove, and the elastic layer can reduce the probability of plastic deformation of the deformable sheet under the action of user pressing. The first clamping ring is located in the middle frame, the first clamping ring is clamped to the second end of the mounting column, and the first clamping ring is abutted against the middle frame. In this way, in the process of the user pressing the detection device, the movement of the mounting column in the vertical direction can be limited by the above-mentioned first clamping ring.

[0028] In an optional embodiment, the elastic layer includes silicone or rubber. The modulus of the silicone or rubber can increase with the increase of compression deformation. In this way, when the pressure applied by the user is large, the modulus of the elastic layer after compression increases, so that the deformable sheet can be supported to achieve the effect of limiting, so that the first cantilever end and the second cantilever end of the deformable sheet are not easy to plastically deform. Alternatively, the elastic layer includes a soft gel layer and a plurality of particles doped in the soft gel layer. The hardness of the particles is greater than the hardness of the soft gel layer; wherein the soft gel layer includes silicone or rubber, and the particles include at least one of metal, plastic or rubber. In this way, under the pressure of the user, the soft gel layer is compressed and elastically deformed, so that the spacing between the particles is reduced, and further at least part of the particles are directly in contact with each other, so that the stiffness of the entire elastic layer is increased, and the deformable sheet can be supported to achieve the effect of limiting, so that the first cantilever end and the second cantilever end of the deformable sheet are not easy to plastically deform.

[0029] In an optional embodiment, a first sealing groove is formed in a portion of the mounting post located in the first mounting hole. The electronic device includes a first sealing ring, which is located in the first sealing groove, and the first sealing ring abuts against a hole wall of the first mounting hole and a groove wall of the first sealing groove. The first sealing ring is used to seal the gap between the first mounting hole and the mounting post, thereby reducing the probability of external water vapor entering the interior of the middle frame through the mounting groove and the first mounting hole, thereby improving the reliability of the product.

[0030] In an optional embodiment, a first mounting hole penetrating the middle frame is provided at the bottom of the mounting groove, and the detection device includes a first pressure rod. In addition, the electronic device may further include a first adhesive layer and a second snap ring. The first pressure rod penetrates the first mounting hole, and the first pressure rod is arranged on the side of the first circuit board away from the metal cover plate, the first end of the first pressure rod abuts or is connected to the first circuit board, and the second end of the first pressure rod extends out of the first mounting hole and is located in the middle frame. In addition, the first bonding is located in the mounting groove, and the first adhesive layer is arranged between the first circuit board and the bottom of the mounting groove, and is connected to the first circuit board and the bottom of the mounting groove. The second snap ring is located in the middle frame, the second snap ring is clamped to the second end of the first pressure rod, and the second snap ring abuts against the middle frame. In this way, in the process of the user pressing the detection device, the first pressure rod can be limited in the vertical direction by the above-mentioned second snap ring.

[0031] In an optional embodiment, the detection device further includes a deformable sheet, the deformable sheet is located in the middle frame, and the deformable sheet has a fixed end. In addition, the electronic device further includes a threaded connector, the threaded connector is located in the middle frame, the threaded connector passes through the fixed end of the deformable sheet, and is connected to the middle frame to fix the deformable sheet.

[0032] In an optional embodiment, the bottom of the mounting groove is provided with a first mounting hole and a second mounting hole that penetrate the middle frame. In addition, the detection device includes a first pressure rod and a second pressure rod. Among them, the first pressure rod penetrates the first mounting hole, the first pressure rod is arranged on the side of the first circuit board away from the metal cover plate, the first end of the first pressure rod abuts or is connected to the first circuit board, and the second end of the first pressure rod extends out of the first mounting hole and is located in the middle frame. The second pressure rod penetrates the second mounting hole, the second pressure rod is arranged on the side of the first circuit board away from the metal cover plate, the first end of the second pressure rod abuts or is connected to the first circuit board, and the second end of the second pressure rod extends out of the second mounting hole and is located in the middle frame. In addition, the electronic device also includes a first spring and a second spring. The first spring is located in the mounting groove, a part of the first pressure rod passes through the first spring, and the two ends of the first spring abut against the first pressure rod and the bottom of the mounting groove respectively. The second spring is located in the mounting groove, a part of the second pressure rod passes through the second spring, and the two ends of the second spring abut against the second pressure rod and the bottom of the mounting groove respectively. When the user does not press the detection device, the first spring and the second spring may be in a compressed state, so that the deformed deformable sheet can return to its initial position after the user cancels the pressing force of the metal cover.

[0033] In an optional embodiment, the first circuit board includes a flexible circuit board, and a third mounting hole that passes through the middle frame is formed at the bottom of the mounting groove. In addition, the electronic device also includes a plug, a second adhesive layer, and a second circuit board. The plug is arranged in the third mounting hole to block the third mounting hole. The second adhesive layer is arranged in the third mounting hole and is located on the side of the plug away from the mounting groove, and the second adhesive layer is bonded to the plug and the middle frame. The second circuit board is arranged in the middle frame, and a part of the flexible circuit board passes through the plug and the second adhesive layer, extends into the middle frame and is electrically connected to the second circuit board. The plug can block the third mounting hole to achieve the effect of waterproofing and dustproofing. The second adhesive layer can be glue, and the second adhesive layer is used to bond the plug to the middle frame.

[0034] Another aspect of the embodiments of the present application provides a control method for an electronic device, wherein the electronic device includes a detection device, the detection device having a key function and a health detection function, and the detection device includes a light-emitting device, a photoelectric converter, a metal cover plate, and a pressure-sensitive element. The control method includes: scanning the pressure-sensitive element at a first scanning frequency to identify a user's pressing event on the detection device. Next, determine whether the health detection function is turned on. If the health detection function is turned on, the above-mentioned health detection function is executed. If the health detection function is not turned on, the key function is executed. The control method of the above-mentioned electronic device has the same technical effect as the electronic device provided in the aforementioned embodiment, which will not be repeated here.

[0035] In an optional implementation, the above health detection function is specifically: displaying a guide image. Next, if the user's body directly presses the detection device, the pressure-sensitive element is scanned at a second scanning frequency to obtain the pressure value applied by the user on the metal cover, the light-emitting device and the photoelectric converter are started, and a voltage is applied to the metal cover to obtain the user's electrocardiogram signal. Among them, the second scanning frequency is greater than the first scanning frequency. Next, if the pressure value is greater than or equal to the first threshold value, and less than or equal to the second threshold value, the detection result is determined based on at least one of the pressure value, the output signal of the photoelectric converter, and the electrocardiogram signal. Next, the above detection result is displayed, and the detection result includes at least one of the blood oxygen value, heart rate value, electrocardiogram data, and blood pressure value, so as to realize the collection of blood oxygen, heart rate, electrocardiogram, and blood pressure data to complete the health detection of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1A A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0037] Figure 1B for Figure 1A A schematic diagram of an exploded structure of an electronic device shown;

[0038] Figure 2A The user use provided by the embodiment of the present application Figure 1A a schematic diagram of the electronic device shown;

[0039] Figure 2B For user finger press Figure 1A The structural schematic diagram of the detection device shown;

[0040] Figure 3 for Figure 1A A structural schematic diagram of a detection device;

[0041] Figure 4 For along Figure 2B A cross-sectional view obtained by cutting O1-O2;

[0042] Figure 5 A schematic diagram of a working scenario of the PPG module provided in an embodiment of the present application;

[0043] Figure 6 A schematic diagram of the structure of a PPG module provided in an embodiment of the present application;

[0044] Figure 7 For along Figure 2B Another cross-sectional view obtained by cutting O1-O2;

[0045] Fig. 8A Figure 1A Another structural schematic diagram of the detection device;

[0046] Figure 8B for Figure 2B Another cross-sectional view obtained by cutting along O1-O2;

[0047] Figure 8C for Figure 8B A structural schematic diagram of a metal cover plate;

[0048] Fig. 9 For along Figure 2B A local structural cross-sectional view obtained by cutting O1-O2;

[0049] Fig. 10A A schematic diagram of an electrical connection structure between a metal cover plate and a first circuit board provided in an embodiment of the present application;

[0050] Fig. 10B A schematic diagram of another electrical connection structure between the metal cover plate and the first circuit board provided in an embodiment of the present application;

[0051] Fig.11A For along Figure 2B Another cross-sectional view obtained by cutting O1-O2;

[0052] Fig. 11B For along Fig.11A A cross-sectional view obtained by cutting A1-A2;

[0053] Fig. 12A A structural diagram of a PPG module provided for related technologies;

[0054] Fig. 12B For along Fig. 12A A cross-sectional view obtained by cutting B1-B2;

[0055] Fig.13 A schematic diagram of the structure of a detection device provided in an embodiment of the present application;

[0056] Fig.14A For along Figure 2B A local structural cross-sectional view obtained by cutting O1-O2;

[0057] Fig. 14B for Fig.14A A deformation diagram of the medium deformation sheet;

[0058] Fig.15 A schematic diagram of the structure of a detection device provided in an embodiment of the present application;

[0059] Fig.16A For along Figure 2B A local structural cross-sectional view obtained by cutting O1-O2;

[0060] Fig. 16B For along Figure 2B A local structural cross-sectional view obtained by cutting O1-O2;

[0061] Fig.17A for Fig.16A A schematic diagram of a state of the middle elastic layer;

[0062] Fig. 17B for Fig.16A Schematic diagram of another state of the middle elastic layer;

[0063] Fig. 17C for Fig.16A Schematic diagram of another state of the middle elastic layer;

[0064] Fig.18A A schematic diagram of the structure of a pressure-sensitive element provided in an embodiment of the present application;

[0065] Fig.18B Another structural schematic diagram of a pressure-sensitive element provided in an embodiment of the present application;

[0066] Fig.19A A schematic diagram of an electrical connection method for a pressure-sensitive element provided in an embodiment of the present application;

[0067] Fig.19B for Fig.19A Circuit diagram of some components in the figure;

[0068] Fig.19C for Fig.19A Circuit diagram of some components in the figure;

[0069] Fig. 20 For along Figure 2B A local structural cross-sectional view obtained by cutting O1-O2;

[0070] Fig.21 For along Figure 2B A local structural cross-sectional view obtained by cutting C1-C2;

[0071] Fig. 22 For along Figure 2B A local structural cross-sectional view obtained by cutting O1-O2;

[0072] Fig.23A A schematic diagram of a partial structure of a detection device provided in an embodiment of the present application;

[0073] Fig. 23B A schematic diagram of a partial structure of a detection device provided in an embodiment of the present application;

[0074] Fig.24A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0075] Fig.25 A flow chart of a control method for an electronic device provided in an embodiment of the present application;

[0076] Fig.26 A schematic diagram of a display interface of an electronic device provided in an embodiment of the present application;

[0077] Fig. 27 A schematic diagram of another display interface of an electronic device provided in an embodiment of the present application;

[0078] Fig.28 for Fig.25 Schematic diagram of the specific steps of S107;

[0079] Fig.29 A schematic diagram of another display interface of an electronic device provided in an embodiment of the present application;

[0080] Fig.30 A schematic diagram of another display interface of an electronic device provided in an embodiment of the present application.

[0081] Reference numerals:

[0082] 01-electronic device; 10-display screen; 11-middle frame; 12-back shell; 20-detection device; 21-first circuit board; 22-light-emitting device; 23-photoelectric converter; 24-metal cover plate; 25-light-transmitting structure; 200-accommodating cavity; 201-first light-through hole; 202-second light-through hole; 100-epidermis; 101-dermis; 102-subcutaneous tissue; 221-first light-emitting component; 222-second light-emitting component ;2211-first light source;2212-second light source;2221-third light source;2222-fourth light source;241-metal plating;27-light-shielding connecting layer;271-avoidance hole;251-first light-transmitting structure;252-second light-transmitting structure;243-metal cover body;244-light-shielding retaining wall;30-conductive silicone;31-conductive glue;210-copper leakage part;32-metal spring;110-transparent plate;111- Adhesive layer; 112- bracket; 400- pressure sensing module; 41- first pressure rod; 42- second pressure rod; 43- deformation sheet; 44- pressure sensitive element; 430- fixed end; 431- first cantilever end; 432- second cantilever end; 2101- FPC; 2102- support plate; 220- injection molded integral structural member; 300- mounting groove; 301- first mounting hole; 302- second mounting hole; 51- first clamp ring; 52- first sealing Ring; 53-elastic layer; 54-plug; 55-second adhesive layer; 501-first sealing groove; 60-second circuit board; 45-first metal electrode sheet; 46-second metal electrode sheet; 531-soft glue layer; 532-particles; 61-threaded connector; 71-first spring; 72-second spring; 56-first adhesive layer; 57-second retaining ring; 70-pressure scale; 80-health detection function button; 81-prompt dialog box. DETAILED DESCRIPTION

[0083] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0084] In the following, the terms "first", "second", etc. are used only for convenience of description and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0085] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed mechanical connection, a detachable mechanical connection, or an integrated one; or, "connection" can be a direct connection or an indirect connection through an intermediate medium.

[0086] In addition, unless otherwise clearly specified and limited, the term "electrical connection" should be understood in a broad sense. For example, "electrical connection" can be a direct electrical connection, such as physical contact and electrical conduction between two components. It can also be understood as the electrical connection between different components in the circuit structure through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals to transmit electrical signals; or, "electrical connection" can be an indirect electrical connection between two components through an intermediate medium; or, "electrical connection" can be an electrical connection between two components in an air-spaced / non-contact manner, for example, two components are electrically connected by capacitive coupling to transmit electrical signals. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to a connection relationship that limits the product structure.

[0087] In the embodiments of the present application, the descriptions "vertical" and "parallel" respectively represent approximately vertical and approximately parallel within a certain error range, and the error range may be a range where the deviation angle is less than or equal to 5°, 8° or 10° relative to the absolute vertical and absolute parallel, respectively, and no specific limitation is made here.

[0088] In the embodiments of the present application, directional terms such as "up", "down", "left" and "right" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly according to the change of the orientation of the components in the drawings.

[0089] In the drawings of the embodiments of the present application, components are represented by guide lines with arrows; parts are represented by guide lines only; and hollow structures such as openings and holes are represented by guide lines with wavy lines at the ends.

[0090] An embodiment of the present application provides an electronic device, which can be applied to various communication systems or communication protocols, such as: Bluetooth (BT) communication technology, global positioning system (GPS) communication technology, global system of mobile communication (GSM) communication technology, wireless fidelity (WiFi) communication technology, wideband code division multiple access wireless (WCDMA) communication technology, long term evolution (LTE), 5G communication technology and other future communication technologies.

[0091] The electronic device in the embodiment of the present application may be a smart wearable device, for example, a human health detection wearable device capable of detecting the user's health sign parameters (for example, at least one of heart rate, blood oxygen, electrocardiogram, blood pressure, etc.), and for example, the above-mentioned smart wearable device may be a smart watch, a smart bracelet, smart glasses, and a smart helmet. Alternatively, the above-mentioned electronic device may also be a mobile phone, a tablet computer (pad), a laptop computer, a smart home, a virtual reality (VR) electronic device, an augmented reality (AR) electronic device, etc. Alternatively, the electronic device may also be a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an electronic device in a 5G network, or an electronic device in a future-evolved public land mobile communication network (PLMN), etc., and the embodiment of the present application is not limited to this.

[0092] For the convenience of explanation, the following is Figure 1A The electronic device 01 shown is a smart watch capable of performing health detection. For example, the electronic device 01 may include a display screen 10, a middle frame 11, and a Figure 1B The rear cover 12 is shown. Figure 1BAs shown, the display screen 10 can be arranged in the middle frame 11, the display surface of the display screen 10 is located on the side away from the rear housing 12, and the middle frame 11 can be arranged around the display screen 10. The display screen 10 can be a liquid crystal display (LCD), or an organic light emitting diode (OLED) display, or a micro or mini light emitting diode (LED) display.

[0093] The present application does not limit the shape of the display screen 10. For example, the display surface of the display screen 10 may be circular or rectangular. The outline shapes of the middle frame 11 and the rear shell 12 may match the outline shape of the display screen 10. For the convenience of description, the following description is based on the example that the outline shapes of the display screen 10, the middle frame 11 and the rear shell 12 are circular.

[0094] On this basis, the electronic device 01 may also include components such as circuit boards, batteries, processors, sensors, microphones, and speakers. In some embodiments of the present application, components such as circuit boards, batteries, processors, sensors, microphones, and speakers may be arranged between the display screen 10 and the back shell 12. The above-mentioned middle frame 11 may support the entire electronic device 01. In some embodiments of the present application, the back shell 12 is respectively covered along the upper and lower edges of the middle frame 11 to form a housing or shell (housing) of the electronic device 01. Alternatively, the middle frame 11 and the back shell 12 may be connected as an integrally formed part to form a housing or shell of the electronic device 01. It should be understood that "housing or shell" may be used to refer to part or all of any one of the back shell 12 or the middle frame 11, or to refer to part or all of any combination of the back shell 12 or the middle frame 11.

[0095] For example, the processor may include one or more processing units, for example, the processor may include an application processor (AP), a modem processor, a graphics processor (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0096] In addition, in order to detect health parameters, such as heart rate, blood oxygen, electrocardiogram, blood pressure and other data, the electronic device 01 may also include: Figure 1A The detection device 20 shown. The detection device 20 can be connected to the middle frame 11. For example, the outer surface of the detection device 20 can protrude from the outer surface of the middle frame 11. Alternatively, for another example, the outer surface of the detection device 20 can also be flush with the outer surface of the middle frame 11, which is not limited in this application.

[0097] Based on this, in the case where the electronic device 01 is a smart watch, Figure 2A As shown, the user can wear the electronic device 01 on the left hand and press the detection device 20 (such as Figure 2B Alternatively, the electronic device 01 can be worn on the right hand, and the detection device 20 can be pressed by the left hand. Figure 2B As shown, in some embodiments of the present application, when the user's finger presses the detection device 20, the detection device 20 can collect the user's heart rate, blood oxygen and electrocardiogram data. Alternatively, in other embodiments, the detection device 20 can also calculate the pressure value based on the above-mentioned heart rate, blood oxygen, electrocardiogram and other data. Alternatively, the above-mentioned detection device 20 can also collect the pressure value of the user pressing the detection device 20, so that the above-mentioned electronic device 01 can calculate the user's blood pressure value in combination with the above-mentioned heart rate, blood oxygen, electrocardiogram data and pressure value. In order to facilitate the detailed description of the structure of the detection device 20, Figure 2B A coordinate system XYZ of the detection device 20 is established in the figure, wherein the X direction may be the length direction of the detection device 20, the Y direction may be the width direction of the detection device 20, and the Z direction may be the height direction of the detection device 20.

[0098] The structure of the detection device 20 is described below by way of example. Figure 3 As shown, the detection device 20 may include a first circuit board 21 , a light emitting device 22 , a photoelectric converter 23 , a metal cover plate 24 and a light-transmitting structure 25 .

[0099] For example, the first circuit board 21 may include a flexible printed circuit (FPC), or, for another example, the first circuit board 21 may include a PCB. The light emitting device 22 may be an LED, an OLED, or a quantum dots light emitting diode (QLED), and the user emits a detection light, such as at least one of visible light and infrared light. The photoelectric converter 23 may be a photodiode (PD) or a phototransistor, and the photoelectric converter 23 may receive the reflected light from the user's skin and perform photoelectric conversion.

[0100] The light emitting device 22 and the photoelectric converter 23 may be disposed on the first circuit board 21 and electrically connected to the first circuit board 21. The first circuit board 21 may be provided with a circuit structure for controlling the light emitting device 22 and the photoelectric converter 23. Figure 4 (along Figure 2B As shown in the cross-sectional view obtained by cutting along the dotted line O1-O2 in FIG. 1 , where the dotted line O1-O2 is parallel to the X direction, the light emitting device 22 and the photoelectric converter 23 can be located on the same side of the first circuit board 21. In this way, the light emitting device 22 and the photoelectric converter 23 can constitute a photoplethysmograph (PPG) module.

[0101] The specific working principle of the PPG module may be that the blood circulation is driven by the contraction and relaxation of the beating heart. When the heart contracts, the blood flows to the periphery of the body, the part to be tested becomes congested, and the blood volume increases. When the heart relaxes, the blood to be tested flows back to the heart, and the blood volume decreases. This generates a periodic signal, which may include a systolic peak and a diastolic peak. The heart rate (HR) can be determined by the periodic signal. In addition, the blood oxygen content in the blood is related to the hemoglobin content.

[0102] Based on this, the human skin transmits and reflects visible light and infrared light. When the light emitted by the light emitting device 22 is irradiated to the skin, the blood flow in the skin (for example, changes in blood flow caused by heartbeat) and the amount of hemoglobin in the blood will affect the amount of light absorbed, and thus affect the skin's reflection of light. By collecting the light reflected by the skin through the photoelectric converter 23, the law of the change of light intensity related to the blood volume of the human body over time can be detected, that is, the photoplethysmogram. The characteristics of blood flow and the hemoglobin content can be reflected through the photoplethysmogram, and parameters such as heart rate and blood oxygen can be obtained.

[0103] On this basis, continue Figure 4 As shown, the metal cover plate 24 of the detection device 20 is covered on the first circuit board 21. In addition, a receiving cavity 200 may be formed between the metal cover plate 24 and the first circuit board 21, and the light emitting device 22 and the photoelectric converter 23 may be arranged in the receiving cavity 200. The metal cover plate 24 is provided with a first light hole 201 and a second light hole 202 penetrating the metal cover plate 24, the first light hole 201 exposes the light emitting surface of the light emitting device 22, and the second light hole 202 exposes the light receiving surface of the photoelectric converter 23.

[0104] The light emitting surface of the light emitting device 22 is the surface of the light emitting device 22 for emitting light, and the light receiving surface of the photoelectric converter 23 is the surface of the photoelectric converter 23 for receiving the light reflected by the skin. Figure 4 The first light hole 201 on the metal cover plate 24 exposes the light emitting surface of the light emitting device 22, so that the light emitted by the light emitting device 22 can pass through the first light hole 201 to illuminate the user's finger. In addition, since the second light hole 202 on the metal cover plate 24 exposes the light receiving surface of the photoelectric converter 23, the light reflected by the user's finger can pass through the second light hole 202 and be incident on the light receiving surface of the photoelectric converter 23, thereby realizing the collection of the emitted light, and thus being able to obtain the above-mentioned PPG data.

[0105] In addition, the human skin can include the following from the outside to the inside: Figure 5 The epidermis 100, dermis 101 and subcutaneous tissue 102 are shown. Based on this, in some embodiments of the present application, the light emitting device 22 can emit visible light of different wavelengths, such as at least one of blue light, green light, yellow light and red light. In addition, the light emitting device 22 can also emit infrared light. Based on this, the light emitting device 22 can include Figure 5 The first light emitting component 221 and the second light emitting component 222 shown in the figure can emit at least one of red light or infrared light, and the second light emitting component 222 can emit at least one of the above-mentioned yellow light, green light and blue light. The wavelengths of the above-mentioned visible light and infrared light and the detection targets are shown in Table 1.

[0106] Table 1

[0107]

[0108]

[0109] Combined with Table 1, continue as Figure 5 As shown, the wavelengths of light emitted by the light emitting device 22 are different, the depths of the skin reached are different, and the detection targets are also different. For example, the blue light or green light ( Figure 5 The thin solid line in the figure indicates yellow light or green light. The wavelength of light is shorter and can reach the epidermis 100, so it can detect capillaries ( Figure 5 The yellow light emitted by the second light emitting component 222 ( Figure 5 The thin dashed line in the figure can reach the dermis 101, thereby detecting the small arteries ( Figure 5The red light emitted by the first light emitting component 221 and the infrared light emitted by the second light emitting component 222 ( Figure 5 The red light and infrared light are represented by thick solid lines in the figure. The wavelength of the red light and infrared light is longer and can reach the subcutaneous tissue 102, thereby detecting the artery ( Figure 5 The blood volume in the subcutaneous tissue 102).

[0110] In this way, the processor in the electronic device 01 can obtain the PPG signals of the blood vessels in different layers of the skin from the photoelectric converter 23. By comprehensively processing the multi-dimensional PPG signals, more accurate PPG data, such as the above-mentioned blood oxygen and heart rate data, can be obtained. Among them, red light is mainly absorbed by oxygenated hemoglobin in the blood, while infrared light is mainly absorbed by hemoglobin and deoxyhemoglobin in the blood. Therefore, the processor can use the absorption difference between the red light and infrared light collected by the photoelectric converter 23 to calculate the blood oxygen saturation by measuring the ratio of hemoglobin and oxygen in the blood, thereby obtaining blood oxygen data.

[0111] Continue as Figure 5 As shown, in some embodiments of the present application, the first light-emitting component 221 may have a first spacing d1 with the photoelectric converter 23, and the first spacing d1 may satisfy a size range of 3.5mm≤d1≤5.5mm. Among them, the first spacing d1 may be the spacing between the size center position (or, the light-emitting center position) of the first light-emitting component 221 and the size center position of the photoelectric converter 23. When the first spacing d1 satisfies the range of 3.5mm≤d1≤5.5mm, the light emitted by the first light-emitting component 221 can be more fully and easily received by the photoelectric converter 23 after being reflected by the user's skin, so that the signal collected by the photoelectric converter 23 can be more accurate, and then the above-mentioned PPG data acquired by the electronic device 01 can be more accurate. For example, the first spacing d1 can be 3.5mm, 4mm, 4.5mm, 5mm or 5.5mm.

[0112] Based on this, in some embodiments of the present application, since the blood oxygen data is related to the absorption difference between red light and infrared light, Figure 6 (along Figure 5As shown in the top view obtained by the B direction in FIG, the first light-emitting component 221 may include a first light source 2211 for emitting red light and a second light source 2212 for emitting infrared light. The first light source 2211 and the second light source 2212 may be at least one of self-luminous devices such as LED, OLED, QLED, etc. There is the first spacing d1 between any one of the first light source 2211 and the second light source 2212 and the photoelectric converter 23. Along the Y direction, the present application does not limit the position and spacing of the first light source 2211 and the second light source 2212.

[0113] In addition, continue Figure 5 As shown, there is a second spacing d2 between the second light-emitting component 222 and the photoelectric converter 23, and the second spacing d2 can satisfy the size range of 3.0mm≤d1≤4.5mm. Similarly, the second spacing d2 can be the spacing between the size center position (or, the light-emitting center position) of the second light-emitting component 222 and the size center position of the photoelectric converter 23. When the second spacing d2 satisfies the range of 3.0mm≤d1≤4.5mm, the above-mentioned PPG data acquired by the electronic device 01 can be more accurate. For example, the second spacing d2 can be 3mm, 3.5mm, 4mm or 4.5mm.

[0114] Based on this, it can be seen from Table 1 that both blue light and green light can reach the epidermis 100 to detect the PPG signal in the capillary blood light. Therefore, the second light emitting component 222 may include: Figure 6 The third light source 2221 and the fourth light source 2222 shown, the third light source 2221 can be used to emit blue light or green light, and the fourth light source 2222 is used to emit yellow light. Similarly, the third light source 2221 and the fourth light source 2222 can be at least one of self-luminous devices such as LED, OLED, QLED, etc. There is the second spacing d2 between any one of the third light source 2221 and the fourth light source 2222 and the photoelectric converter 23. Along the Y direction, the present application does not limit the position and spacing of the third light source 2221 and the fourth light source 2222.

[0115] In addition, continue Figure 7 (along Figure 2BAs shown in the cross-sectional view obtained by cutting along the dotted line O1-O2 in the figure, the metal cover plate 24 is electrically connected to the first circuit board 21 so that the metal cover plate 24 can transmit electrical signals to the first circuit board 21. Therefore, the metal cover plate 24 can be used as an electrocardiogram (ECG) electrode. Based on this, since each beat of the heart will cause tiny electric waves on the surface of the skin, when the user's limbs, such as fingers, touch the outer surface of the metal cover plate 24, the above-mentioned electric waves can be collected by the metal cover plate 24 and amplified and processed by the processor in the electronic device 01, and an electrocardiogram can be obtained. The electrocardiogram can be used to know the health of the user's heart, for example, to determine whether the heart's activity is normal, slow, fast or irregular.

[0116] The above description is based on an example of a user directly touching the outer surface of the metal cover plate 24 and detecting ECG data. In other embodiments of the present application, the detection device 20 may also include: Figure 7 The metal coating 241 shown in the figure can cover the outer surface of the metal cover plate 24, that is, the surface of the metal cover plate 24 facing away from the first circuit board 21. In this way, the material of the metal coating 241 can be used to decorate the appearance. In addition, the conductivity of the metal cover plate 24 and the metal coating 241 can be the same or different. In this case, the above-mentioned ECG electrode can include the metal cover plate 24 and the metal coating 241. For the convenience of explanation in the following embodiments, the metal coating 241 is not shown in some drawings.

[0117] In order to electrically connect the metal cover plate 24 to the circuit board 21, in some embodiments of the present application, Fig. 8A As shown, the detection device 20 may further include a conductive silicone 30. The conductive silicone 30 may be disposed between the metal cover plate 24 and the first circuit board 21. Figure 8B (along Figure 2B As shown in the cross-sectional view obtained by cutting along the dotted line O1-O2 in FIG. 1 , the first end (e.g., the upper end along the Z direction) of the conductive silicone 30 is electrically connected to the metal cover plate 24, and the second end (e.g., the lower end along the Z direction) of the conductive silicone 30 is welded to the first circuit board 21. In this case, the two ends of the conductive silicone 30 can be welded to the pads of the metal cover plate 24 and the first circuit board 21 respectively through a welding process, so that the metal cover plate 24 can be electrically connected to the first circuit board 21 through the conductive silicone 30, and the signal interconnection between the conductive silicone 30 and the first circuit board 21 is realized.

[0118] Or, in other embodiments of the present application, Fig. 9As shown, the detection device 20 may further include a conductive adhesive 31, which is disposed between the metal cover plate 24 and the first circuit board 21, and the conductive adhesive 31 is bonded to the metal cover plate 24 and the copper leakage part 210 of the first circuit board 21, and the conductive adhesive 31 can be electrically connected to the metal cover plate 24 and the first circuit board 21. In this case, the portion of the first circuit board 21 electrically connected to the conductive adhesive 31 may not need to be provided with a pad, and the conductive adhesive 31 is bonded to the copper leakage part 210 of the first circuit board 21, and the side of the conductive adhesive 31 away from the copper leakage part 210 may be bonded to the metal cover plate 24, so that the metal cover plate 24 can achieve signal interconnection with the first circuit board 21 through the conductive adhesive 31. For example, the copper leakage part 210 of the first circuit board 21 may be a portion of the metal copper layer exposed in the first circuit board 21.

[0119] Alternatively, in some other embodiments of the present application, the detection device 20 further includes: Fig. 10A or Fig. 10B The metal spring piece 32 shown. The metal spring piece 32 can be arranged in the accommodating cavity 200 (such as Figure 7 For example, Fig. 10A As shown, the first end of the metal spring 32 (i.e., the end facing the metal cover plate 24) is welded to the metal cover plate 24, and the second end of the metal spring 32 (i.e., the end facing the first circuit board 21) abuts against the copper leakage part 210 of the first circuit board 21. During the abutment between the second end of the metal spring 32 and the copper leakage part 210 of the first circuit board 21, the metal spring 32 can be elastically deformed, and the deformed metal spring 32 can be in closer contact with the copper leakage part 210 of the first circuit board 21. Or, as Fig. 10B As shown, the second end of the metal spring 32 (i.e., the end facing the first circuit board 21) is welded to the first circuit board 21, and the first end of the metal spring 32 (i.e., the end facing the metal cover plate 24) abuts against the metal cover plate 24. Similarly, during the abutment between the first end of the metal spring 32 and the metal cover plate 24, the metal spring 32 can be elastically deformed, and the deformed metal spring 32 can be in closer contact with the metal cover plate 24. In this way, the metal cover plate 24 can realize signal interconnection with the first circuit board 21 through the metal spring 32.

[0120] The above is an example of the electrical connection between the metal cover plate 24 and the first circuit board 21, and does not constitute a limitation on the electrical connection. In addition, the present application does not limit the position where the metal cover plate 24 and the first circuit board 21 are electrically connected.

[0121] As can be seen from the above, the PPG data such as the user's blood oxygen and heart rate can be obtained through the above-mentioned PPG module (including the light-emitting device 22 and the photoelectric converter 23), and the ECG data can be obtained through the ECG electrode, such as the metal cover 24, or the metal cover 24 and the metal coating 241. Based on this, for example, the pulse transit time (PTT) can be obtained according to the above-mentioned PPG data and ECG data. The pulse wave transmission speed can be obtained according to the PPT and the user's height, weight and other parameters, and the systolic and diastolic pressures of the user's pulse can be obtained according to the pulse wave transmission speed, and non-invasive continuous blood pressure measurement can be achieved. Compared with the cuff-type blood pressure meter, the detection device 20 provided in the present application does not require the user to wear a sleeve on the arm during the process of detecting blood pressure, but only needs to touch the metal cover 24 with a finger, thereby improving the comfort and convenience of blood pressure detection.

[0122] As can be seen from the above, the detection device 20 provided in the embodiment of the present application integrates the PPG module (light emitting device 22 and photoelectric converter 23) and the ECG electrode. In addition, in order to connect the PPG module (light emitting device 22 and photoelectric converter 23), the ECG electrode and the first circuit board 21, the detection device 20 may further include: Figure 8B The light-transmitting structure 25 shown above. The light-transmitting structure 25 can be filled in the first light-transmitting hole 201, the second light-transmitting hole 202 and the accommodating cavity 200 (such as Figure 7 shown).

[0123] Based on this, in order to improve the comfort of the user when pressing the detection device 20, as shown in FIG. Figure 8B As shown, the surface of the light-transmitting structure 25 away from the first circuit board 21 can be spliced ​​into an arc surface with the surface of the metal cover plate 24 away from the first circuit board 21. In this way, the surface of the light-transmitting structure 25 away from the first circuit board 21 can smoothly transition with the surface of the metal cover plate 24 away from the first circuit board 21, thereby improving the comfort of the user's pressing.

[0124] In addition, continue Figure 8BAs shown, the light-transmitting structure 25 encloses the light-emitting device 22 and the photoelectric converter 23, and is connected to the light-emitting device 22 and the photoelectric converter 23, the first circuit board 21, and the metal cover plate 24. The light-transmitting structure 25 partially filled in the first light-through hole 201 and the accommodating cavity 200 can connect the light-emitting device 22 to the first circuit board 21 and the metal cover plate 24, and the light-transmitting structure 25 has a light-transmitting property, thereby reducing the influence on the light emitted from the light-emitting surface of the light-emitting device 22. Similarly, the light-transmitting structure 25 partially filled in the second light-through hole 202 and the accommodating cavity 200 can connect the photoelectric converter 23 to the first circuit board 21 and the metal cover plate 24, and can reduce the influence on the light reflected from the skin to the light-receiving surface of the photoelectric converter 23. For the convenience of explanation below, the part of the light-transmitting structure 25 enclosing the light-emitting device 22 can be referred to as the first light-transmitting structure 251, and the part of the light-transmitting structure 25 enclosing the photoelectric converter 23 can be referred to as the second light-transmitting structure 252.

[0125] For example, the light transmittance of the light-transmitting structure 25 can be greater than or equal to 80%. On this basis, since the light-transmitting structure 25 is light-transmitting, in order to reduce the light crosstalk between the light-emitting device 22 and the photoelectric converter 23, for example, continue as follows Figure 8B As shown, the metal cover plate 24 may include a metal cover plate body 243 and a light shielding wall 244. The metal cover plate body 243 may be covered on the first circuit board 21, and the metal cover plate body 243 is electrically connected to the first circuit board 21. The electrical connection method is the same as described above and will not be repeated here. In addition, the metal cover plate body 243 may be provided with the first light through hole 201 and the second light through hole 202 arranged at intervals, and a part of the metal cover plate body 243 is spaced between the first light through hole 201 and the second light through hole 202.

[0126] In addition, the light shielding wall 244 is disposed in the accommodating cavity 200 (eg Figure 7 As shown in FIG. 2 , the light shielding wall 244 may be connected to the metal cover body 243 and the first circuit board 21. Figure 8C As shown, the light shielding wall 244 is located between the first light hole 201 and the second light hole 202. Figure 8B The light emitting device 22 is shown to be spaced apart from the photoelectric converter 23 .

[0127] For example, the material of the metal cover body 243 and the light shielding wall 244 can be the same, for example, the light shielding wall 244 can be made of metal material, and the light shielding wall 244 can be connected to the metal cover body 243 as an integrated structure. For example, the above-mentioned integrated structure can be formed by a metal casting process, a metal injection process, a 3D printing process or a die-casting process. In this way, since the light shielding wall 244 is made of metal material, the light shielding wall 244 has a light shielding performance, so the light shielding wall 244 is set between the light emitting device 22 and the photoelectric converter 23. It can reduce or even prevent the light emitted by the light emitting device 22 from directly incident on the light-emitting converter 23, thereby reducing the light crosstalk between the light emitting device 22 and the photoelectric converter 23, and improving the detection accuracy of the photoelectric converter 23. Alternatively, the light shielding wall 244 can also be made of non-metallic light shielding material and connected to the metal cover body 243 by bonding, clamping or threaded connection.

[0128] In addition, continue as Fig. 8A As shown, in order to reduce or avoid light emitted by the light emitting device 22 from leaking from the bottom of the metal cover plate 24, that is, from the side toward the first circuit board 21, the above-mentioned detection device 20 may further include a light shielding connection layer 27, which is arranged between the metal cover plate 24 and the first circuit board 21, and as shown in FIG. Figure 8B As shown, the light shielding connection layer 27 can be connected to the light shielding wall 244 and the first circuit board 21. For example, the light shielding connection layer 27 can be a light shielding adhesive layer or a light shielding tape. In this way, the bottom of the metal cover plate 24 can be bonded to the first circuit board 21 through the light shielding connection layer 27, thereby reducing or preventing the light emitted by the light emitting device 22 from leaking from the bottom of the metal cover plate 24, thereby improving the utilization rate of the light. Based on this, as Fig. 8A As shown, in order to arrange the above-mentioned light-emitting device 22, the photoelectric converter 23 and the components for electrically connecting the metal cover plate 24 with the first circuit board 21, such as the conductive silicone 30, the light-shielding connection layer 27 can be provided with an avoidance hole 271.

[0129] In summary, if Fig.11A As shown, the light emitting device 22 and the photoelectric converter 23 are covered in the metal cover plate 24, and the light-transmitting structure 25 can cover the light-emitting surface of the light emitting device 22 and the light-receiving surface of the photoelectric converter 23, so as to ensure the normal operation of the light emitting device 22 and the photoelectric converter 23. In addition, the light-transmitting structure 25 can also cover the side surfaces of the light emitting device 22 and the photoelectric converter 23 (parallel to the thickness direction of the detection device 20, i.e., the Z direction). Fig.11A (along Figure 2B The cross-sectional view obtained by cutting along the dotted line O1-O2 in FIG. Fig. 11B (along Fig.11AAs can be seen from the cross-sectional view obtained by cutting along the dotted line A1-A2 in FIG, the light emitting device 22 and the photoelectric converter 23, except for the surface facing the first circuit board 21, can be covered by the light-transmitting structure 25, so that the light-transmitting structure 25 can wrap the light-emitting device 22 and the photoelectric converter 23, and then the light-transmitting structure 25 can be connected with the light-emitting device 22, the photoelectric converter 23, the first circuit board 21 and the metal cover plate 24 as an integrated structure. Based on this, when the light-transmitting structure 25 is made of resin material, it can be formed into an injection-molded integrated structure 220 through a one-time processing process, such as an injection molding process, and the injection-molded integrated structure 220 can include the light-emitting device 22, the photoelectric converter 23, the first circuit board 21, the metal cover plate 24 and the light-transmitting structure 25 of the detection device 20.

[0130] Fig. 12A In the related technology shown, a transparent plate 110 covers the LED and PD arranged on the PCB, and ECG electrodes (not shown in the figure) can be arranged on the transparent plate 110, and the transparent plate can carry the ECG electrodes. The transparent plate 110 is bonded to the bracket 112 through an adhesive layer 111. In this case, in order to ensure the bonding firmness and waterproof performance between the transparent plate 110 and the bracket 112, the length of the adhesive layer 111 along the X direction needs to meet certain requirements, and the length of the bracket 112 along the X direction also needs to meet the requirements of the groove (for placing the adhesive layer 111) and carrying the transparent plate 110. Therefore, the length of the entire device along the X direction is relatively wide. Similarly, if Fig. 12B (along Fig. 12A As shown in the cross-sectional view obtained by cutting along the dotted line B1-B2 in FIG. 1 , considering the width requirement of the adhesive layer 111 and the bracket 112 for carrying the transparent plate 110, the width of the entire device along the Y direction is relatively wide.

[0131] Based on this, on the one hand, relative to Fig. 12A In the embodiment of the present application, the bracket 112, the transparent plate 110 and the adhesive layer 111 are not required. Fig. 11B In the same case as shown in Fig.11A As shown, the detection device 20 provided in the embodiment of the present application can connect the metal cover plate 24 as the ECG electrode with the light-emitting device 22 and the photoelectric converter 23 by embedding the light-transmitting structure 25 in the metal cover plate 24. Therefore, in the length direction (i.e., X direction) of the detection device, there is no need to consider the length requirements of the glue layer and the bracket supporting the transparent plate. Fig. 12B The scheme, such as Fig. 11BAs shown, in the detection device 20 provided in the embodiment of the present application, there is no need to consider the length requirements of the adhesive layer and the bracket supporting the transparent plate in the width direction (i.e., the Y direction) of the detection device, so the length and width of the detection device 20 can be reduced. In addition, in the embodiment of the present application, the light-transmitting structure 25 embedded in the metal cover plate 24 can cover the surface of the light-emitting device 22 and the photoelectric converter 23 away from the first circuit board 21, so there is no need to set Fig. 12A By removing the transparent plate 110 in the apparatus 20, the height (i.e., Z direction) of the detection device can be reduced. In this way, the three-dimensional dimensions of the detection device 20 are reduced, thereby achieving the purpose of miniaturization of the detection device 20. In this case, when the detection device 20 with miniaturization design is applied to the electronic device 01, it is helpful to reduce the size of the electronic device 01, thereby alleviating the problem of large size of the device with health sign detection function.

[0132] On the other hand, in the detection device 20 which is an integrated structural part formed by the above-mentioned injection molding process, the light-transmitting structure 25 can not only connect the light-emitting device 22 and the photoelectric converter 23 with the metal cover plate 24 and the first circuit board 21, but also wrap the surface and periphery of the light-emitting device 22 and the photoelectric converter 23, so as to encapsulate the light-emitting device 22 and the photoelectric converter 23, reduce the influence of external water vapor and impurities on the performance of the light-emitting device 22 and the photoelectric converter 23, and improve the waterproof and dustproof reliability of the entire detection device 20.

[0133] From the above, it can be seen that the embodiments of the present application provide Fig.11A The detection device 20 shown has a PPG module (including a light emitting device 22 and a photoelectric converter 23) and an ECG electrode (including a metal cover plate 24), and the above-mentioned PPG module, ECG electrode, and first circuit board 21 can be connected to form an injection-molded integrated structure 220 through a light-transmitting structure 25. Based on this, it can be seen from the above that in some embodiments of the present application, when the user's finger presses the metal cover plate 24, the PPG module can obtain the user's PPG data, such as heart rate and blood oxygen data. The ECG electrode can obtain the user's electrocardiogram data. The user's blood pressure can be obtained based on the above-mentioned PPG data and electrocardiogram data. Alternatively, in some other embodiments of the present application, in the process of obtaining the user's blood pressure data, the pressure value when the user presses the metal cover plate 24 can be introduced, and the user's blood pressure can be calculated by combining the above-mentioned PPG data, ECG data and pressure value, so as to further improve the accuracy of blood pressure detection. In this case, in order to obtain the pressure value when the user presses the metal cover plate 24, the above-mentioned detection device 20 can also include a pressure sensing module, and the structure of the pressure sensing module is illustrated below.

[0134] In some embodiments of the present application, Fig.13As shown, the pressure sensing module 400 of the detection device 20 may include a first pressure rod 41, a second pressure rod 42, a deformation sheet 43, and a pressure sensitive element 44. Among them, the first pressure rod 41 and the second pressure rod 42 are arranged on the side of the first circuit board 21 away from the metal cover plate 24. For example, the above-mentioned first circuit board 21 may include FPC2101 and a support plate 2102, and the support plate 2102 is arranged on the side of the FPC2101 away from the metal cover plate 24. The side of the FPC2101 facing the metal cover plate 24 can be connected to the above-mentioned injection-molded integral structure 220 through a glue layer, and the side of the FPC2101 away from the metal cover plate 24 can be connected to the support plate 2102 through a glue layer. The rigidity of the support plate 2102 is greater than the rigidity of the FPC2101, so that the FPC2101 can be supported. Based on this, the first pressure rod 41 and the second pressure rod 42 can be arranged on the side of the support plate 2102 away from the metal cover plate 24. When the user presses the metal cover plate 24 , the force transmitted to the first circuit board 21 may be transmitted to the first pressing rod 41 and the second pressing rod 42 through the support plate 2102 .

[0135] In addition, continue Fig.13 As shown, the deformable sheet 43 is arranged on the side of the first pressure rod 41 away from the first circuit board 21, and the deformable sheet 43 has a first cantilever end 431, a fixed end 430 and a second cantilever end 432. The fixed end 430 is located between the first cantilever end 431 and the second cantilever end 432. The deformable sheet 43 is a cantilever end structure. The fixed end 430 is used to fix the deformable sheet 43. For example, the deformable sheet 43 is fixed to Fig.14A In this case, continue as shown in the middle frame 11. Fig.13 As shown, the first end (e.g., the upper end) of the first pressure rod 41 may abut against or be connected to the first circuit board 21, and the second end (e.g., the lower end) of the first pressure rod 41 may abut against or be connected to the first cantilever end 431 of the deformation piece 43. The first end (e.g., the upper end) of the second pressure rod 42 may abut against or be connected to the first circuit board 21, and the second end (e.g., the lower end) of the second pressure rod 42 may abut against or be connected to the second cantilever end 432 of the deformation piece 43.

[0136] For example, Fig.14A (along Figure 2BAs shown in the cross-sectional view obtained by cutting along the dotted line O1-O2 in FIG. 1 , the second end (e.g., the lower end) of the first pressure rod 41 can be connected to the first cantilever end 431 of the deformation piece 43 as an integral structure, and the second end (e.g., the lower end) of the second pressure rod 42 can be connected to the second cantilever end 432 of the deformation piece 43 as an integral structure. Based on this, during the assembly of the detection device 20, the first end (e.g., the upper end) of the first pressure rod 41 can contact the first circuit board 21, such as the support plate 2102 in the first circuit board 21, and the first end (e.g., the upper end) of the second pressure rod 42 can contact the first circuit board 21, such as the support plate 2102 in the first circuit board 21.

[0137] Alternatively, the first end (e.g., the upper end) of the first pressure rod 41 can be connected to the first circuit board 21, such as the support plate 2102 in the first circuit board 21, as an integral structure, and the first end (e.g., the upper end) of the second pressure rod 42 can be connected to the first circuit board 21, such as the support plate 2102 in the first circuit board 21, as an integral structure. Based on this, during the assembly of the detection device 20, the second end (e.g., the lower end) of the first pressure rod 41 can contact the first cantilever end 431 of the deformation piece 43, and the second end (e.g., the lower end) of the second pressure rod 42 can contact the second cantilever end 432 of the deformation piece 43.

[0138] In addition, continue Fig.14A As shown, the pressure-sensitive element 44 covers at least a portion of the first cantilever end 431 of the deformable sheet 43, and the pressure-sensitive element 44 also covers at least a portion of the second cantilever end 432. In addition, the pressure-sensitive element 44 is electrically connected to the first circuit board 21, such as the FPC2101 in the first circuit board 21. In this way, when the user's finger presses the metal cover plate 24 downward along the Z direction, the external force applied by the user can be transmitted to the first circuit board 21 through the metal cover plate 24, and then transmitted to the first pressure rod 41 and the second pressure rod 42 located below the first circuit board 21 through the first circuit board 21. Since the first pressure rod 41 and the second pressure rod 42 are respectively abutted or connected to the first cantilever end 431 and the second cantilever end 432 of the deformable sheet 43, the fixed end 430 located between the first cantilever end 431 and the second cantilever end 432 of the deformable sheet 43 fixes the deformable sheet 43 to a component, such as the middle frame 11, so that under the pressing action of the first pressure rod 41 and the second pressure rod 42, Fig. 14B The first cantilever end 431 and the second cantilever end 432 of the deformation piece 43 shown can be deformed downward along the Z direction. In addition, since the pressure-sensitive element 44 covers at least a portion of the first cantilever end 431 and at least a portion of the second cantilever end 432, the pressure-sensitive element 44 can use the piezoelectric induction principle to convert the deformation of the first cantilever end 431 and the second cantilever end 432 into an electrical signal, and transmit it to the first circuit board 21 ( Fig.14A As shown), to detect the user's pressing force.

[0139] As can be seen from the above, the fixed end 430 of the deformable sheet 43 is used to fix the deformable sheet 43. The following is an example of the fixing method of the fixed end 430. For example, when the above-mentioned detection device 20 is arranged on the middle frame 11, the detection device 20 can be connected to the middle frame 11, the above-mentioned injection-molded integrated structure 220 (including the light-emitting device 22, the photoelectric converter 23, the first circuit board 21, the metal cover plate 24 and the light-transmitting structure 25) and the above-mentioned deformable sheet 43 can be arranged on the outside of the middle frame 11, and the fixed end 430 of the deformable sheet 43 can be connected to the inside of the middle frame 11.

[0140] Based on this, in some embodiments of the present application, Fig.15 As shown, the outer surface of the middle frame 11 is provided with a mounting groove 300, and the bottom of the mounting groove 300 is provided with a first mounting hole 301 penetrating the middle frame 11. Fig.16A (along Figure 2B As shown in the cross-sectional view obtained by cutting along the dotted line O1-O2 in FIG. 3 , the above-mentioned injection-molded integral structural member 220 (including the light-emitting device 22, the photoelectric converter 23, the first circuit board 21, the metal cover plate 24 and the light-transmitting structure 25) and the first pressure bar 41, the second pressure bar 42, the deformation piece 43 and the pressure-sensitive element 44 can be arranged in the installation groove 300, and the first circuit board 21 is close to the bottom of the installation groove 300 relative to the metal cover plate 24. The pressure-sensitive element 44 can be arranged on the side of the deformation piece 43 facing the metal cover plate 24. Alternatively, in other embodiments, the pressure-sensitive element 44 can also be arranged on the side of the deformation piece 43 away from the metal cover plate 24.

[0141] In addition, in order to fix the fixed end 430 of the deformable sheet 43, the above-mentioned detection device further includes: Fig.16A The mounting post 50 is located on the side of the deformation piece 43 away from the metal cover plate 24. The first end (e.g., the upper end) of the mounting post 50 is connected to the fixed end 430 of the deformation piece 43, and the second end (e.g., the lower end) of the mounting post 50 is used to fix the detection device. For example, the second end of the mounting post 50 passes through the first mounting hole 301 (e.g., Fig.1550 , and the first clamping ring 51 is located in the middle frame 11. The first clamping ring 51 is clamped to the second end of the mounting column 50, and the first clamping ring 51 is in contact with the middle frame 11. The mounting column 50 and the pressure-sensitive element 44 are respectively arranged on opposite sides of the deformation sheet, so that the setting position of the pressure-sensitive element 44 will not affect the setting position of the mounting column 50. In this way, when the user presses the detection device 20, the movement of the mounting column 50 in the Z direction can be limited by the above-mentioned first clamping ring 51. In addition, when the first clamping ring 51 clamped to the second end of the mounting column 50 is in contact with the middle frame 11, the mounting column 50 can be fixed to the middle frame 11 by the first clamping ring 51. Since the first end of the mounting column 50 is connected to the fixed end 430 of the deformation sheet 43, the fixed end of the deformation sheet 43 can be fixed to the middle frame 11 through the mounting column 50.

[0142] On this basis, continue Fig.16A As shown, the mounting post 50 is located in the first mounting hole 301 (as shown in FIG. Fig.15 The first sealing ring 52 can be located in the first sealing groove 501, and the first sealing ring 52 is connected to the first mounting hole 301 (as shown in FIG. Fig.15 The hole wall of the first mounting hole 301 (as shown) abuts against the groove wall of the first sealing groove 501, so that the gap between the first mounting hole 301 and the mounting column 50 can be sealed by the first sealing ring 52, thereby reducing the probability of external water vapor entering the interior of the middle frame 11 through the mounting groove 300 and the first mounting hole 301, thereby improving the reliability of the product.

[0143] also, Fig.15 The bottom of the mounting slot 300 is provided with a third mounting hole 303 penetrating the middle frame. Fig.16A A portion of the device 01 may pass through the third mounting hole 303 and then be disposed in the middle frame 11. Based on this, the electronic device 01 may further include: Fig.16A The plug 54, the second adhesive layer 55 and the second circuit board 60 are shown. The plug 54 can be arranged in the third mounting hole 303 (such as Fig.15 In the third mounting hole 303, the plug 54 can block the third mounting hole 303. In addition, the second adhesive layer 55 can be disposed in the third mounting hole 303 and located at the plug 54 away from the mounting groove 300 ( Fig.16A The second adhesive layer 55 can be bonded to the plug 54 and the middle frame 11. The second circuit board 60 is arranged in the middle frame 11, and a part of the FPC 2101 passes through the plug 54 and the second adhesive layer 55 and extends into the middle frame 11 to be electrically connected to the second circuit board 60.

[0144] The second circuit board 60 can be called a main board, and a processor can be arranged on the main board. When the portion of the FPC 2101 located in the middle frame 11 is electrically connected to the main board, the processor can transmit signals through the FPC 2101 and the metal cover plate 24, the light emitting device 22, the photoelectric converter 23, and the pressure sensitive element 44 in the detection device 20. In addition, the plug 54 can be used to connect the third mounting hole 303 (such as Fig.15 The second adhesive layer 55 can be glue, which is used to bond the plug 54 to the middle frame 11.

[0145] From the above, we can see that Fig.16A The deformable sheet 43 shown can be deformed under the pressure applied by the user. For example, the deformable sheet 43 can be a metal sheet, and the material includes alloy steel, for example, at least one of titanium alloy and aluminum alloy. In addition, when the user cancels the pressing force, the deformable sheet 43 needs to return to its original position, so the above-mentioned deformable sheet 43 needs to be elastically deformed. As can be seen from the above, the size of the detection device provided in the embodiment of the present application is relatively small, so the size of the deformable sheet 43 is also reduced accordingly. However, after the size of the deformable sheet 43 is reduced, after the external force is applied to compress the deformable sheet 43, the deflection of the deformable sheet 43 will be reduced, so that plastic deformation is easily caused when the external force is large.

[0146] Based on this, in order to reduce the probability of plastic deformation of the deformable sheet 43 under the pressure of the user, the above detection device may also include the following Fig.16A The elastic layer 53 shown in the figure can be located in the mounting groove 300, and the elastic layer 53 can be arranged between the deformable sheet 43 and the bottom of the mounting groove 300. For example, the elastic layer 53 can be located on the side of the first cantilever end 431 and the second cantilever end 432 of the deformable sheet 43 away from the metal cover plate 24. The elastic layer 53 can cover a part of the first cantilever end 431 and the second cantilever end 432, or can completely cover the first cantilever end 431 and the second cantilever end 432.

[0147] In some embodiments of the present application, the elastic layer 53 may include silicone or rubber. The modulus of the silicone or rubber may increase with the increase of compression deformation. In this way, when the user presses with greater pressure, the modulus of the elastic layer 53 after compression increases, so that the deformable sheet 43 can be supported to achieve the limiting effect, so that the first cantilever end 431 and the second cantilever end 432 of the deformable sheet 43 are not easy to plastically deform. For example, when the distance between the deformable sheet 43 and the middle frame 11 is small, room temperature vulcanized silicone rubber (RTV) can be used for dispensing between the deformable sheet 43 and the middle frame 11, and then the injection-molded integral structural member 220 and the first pressure rod 41, the second pressure rod 42 and other components are placed in the installation groove until the glue is cured to form the elastic layer 53, and the formed elastic layer 53 can be filled in the gap between the deformable sheet 43 and the middle frame 11.

[0148] The above description is based on the example that the elastic layer 53 can be silicone or rubber. In other embodiments of the present application, the elastic layer 53 can also be a tape or foam adhesive with a softer material.

[0149] Or, in other embodiments of the present application, Fig.17A As shown, the elastic layer 53 may also include a soft gel layer 531 and a plurality of particles 532 doped in the soft gel layer 531. The hardness of the particles 532 may be greater than the hardness of the soft gel layer 531. The soft gel layer 531 includes silicone or rubber. The particles 532 may include metal particles, plastic particles, or rubber particles with high hardness. Fig. 17B As shown, under the pressure of the user (in the direction of the arrow), the soft rubber layer 531 is compressed and elastically deformed, so that the distance between the particles 532 is reduced. Fig. 17C As shown, at least part of the particles 532 are in direct contact with each other, thereby increasing the stiffness of the entire elastic layer 53, being able to support the deformable sheet 43, achieving a limiting effect, and making it difficult for the first cantilever end 431 and the second cantilever end 432 of the deformable sheet 43 to undergo plastic deformation.

[0150] As can be seen from the above, when the user presses the detection device 20, Fig. 14B The first cantilever end 431 and the second cantilever end 432 of the deformable sheet 43 shown can be deformed downward along the Z direction. At this time, the pressure-sensitive element 44 covering at least a portion of the first cantilever end 431 and at least a portion of the second cantilever end 432 can use the piezoelectric induction principle to convert the deformation of the first cantilever end 431 and the second cantilever end 432 into an electrical signal to detect the user's pressing force. The structure of the pressure-sensitive element 44 that can achieve the above-mentioned piezoelectric induction is exemplified below.

[0151] In some embodiments of the present application, the first circuit board 21 includes the following Fig.18A In the case of the FPC 2101 shown in FIG. 1 , the pressure sensitive element 44 can be connected to the FPC 2101 as an integral structure. Fig.18B As shown, the pressure-sensitive element 44 is folded into a position where it is stacked with the FPC 2101, so that the pressure-sensitive element 44 can be arranged at Fig.16A The middle deformation piece 43 faces one side of the metal cover plate 24 .

[0152] In addition, the pressure-sensitive element 44 may include a resistance strain gauge, which may include a metal grid structure or a polymer ink structure. The principle of pressure-sensitive detection of the resistance strain gauge may be that the resistance value of the metal grid structure or polymer ink structure in the resistance strain gauge is related to the properties of the material as well as the length, cross-sectional area and other dimensions of the metal grid structure or polymer ink structure. The resistance strain gauge is attached to the deformation gauge 43, and when the deformation gauge 43 is deformed by force, the length and cross-sectional area of ​​the metal grid structure or polymer ink structure also change with the deformation gauge 43, thereby changing the resistance value of the resistance strain gauge.

[0153] Based on this, Fig.18A or Fig.18B As shown, the resistance strain gauge may include a first resistor R1, a second resistor R2, a fourth resistor R4 and a fifth resistor R5, wherein the first resistor R1, the second resistor R2, the fourth resistor R4 and the fifth resistor R5 are all variable resistors. Fig.16A The first cantilever end 431 shown in the figure has the first resistor R1 and the second resistor R2, and the pressure sensitive element 44 covers Fig.16A The portion of the second cantilever end 432 shown has the fourth resistor R4 and the fifth resistor R5.

[0154] In this case, the detection device 20 may also include: Fig.19A The third resistor R3 and the fourth resistor R4 are resistors with fixed resistances. For example, the third resistor R3 and the fourth resistor R4 can be set at Fig.16A The FPC 2101 extends into the middle frame 11. Alternatively, for example, the third resistor R3 and the fourth resistor R4 may be disposed on a mainboard located in the middle frame 11, for example Fig.16A The second circuit board 60 is shown. The present application does not limit the location of the third resistor R3 and the fourth resistor R4, as long as the third resistor R3 and the fourth resistor R4 are not located on the pressure sensitive element 44, so as to reduce the size of the pressure sensitive element 44.

[0155] Based on this, continue as Fig.19A As shown, the first resistor R1 and the second resistor R2 are connected in series to form a first circuit a1, and the third resistor R3 and the fourth resistor R4 are connected in series to form a second circuit a2. The first circuit a1 and the second circuit a2 can be constructed as follows: Fig.19B The first full-bridge circuit 441 shown in the figure can be connected to the FPC2101 ( Fig.19A The first voltage terminal VDD and the second voltage terminal VCC are power supply terminals of the first full-bridge circuit 441. The first voltage terminal VDD can provide an operating voltage to the first full-bridge circuit 441, and the second voltage terminal VCC can be grounded.

[0156] In this way, if Fig.16A As shown in FIG. 1 , when the user presses the metal cover plate 24 of the detection device, the first cantilever end 431 of the deformation piece 43 will be deformed. In this case, the pressure sensitive element 44 covering the first cantilever end 431 is as shown in FIG. Fig.19B The resistance values ​​of the first resistor R1 and the second resistor R2 shown in the figure will change, thereby changing the voltage difference between the first signal terminal S1+ and the second signal terminal S1-, and the voltage difference is proportional to the pressure of the user pressing the metal cover plate 24 ( Fig.16A The pressure of the user's pressing force, such as the first pressure value, can be matched by obtaining the above voltage difference, so that the purpose of detecting the user's pressing force, such as the first pressure value, can be achieved.

[0157] Similarly, continue as Fig.19A As shown, the fifth resistor R5 and the sixth resistor R6 are connected in series to form the third circuit a3, and the third resistor R3 and the fourth resistor R4 are connected in series to form the second circuit a2. The second circuit a2 and the third circuit a3 can be configured as follows: Fig.19C The second full-bridge circuit 442 shown in the figure can be connected to the FPC2101 ( Fig.19A As shown above, the first voltage terminal VDD and the second voltage terminal VCC are power supply terminals of the second full-bridge circuit 442. The first voltage terminal VDD can provide an operating voltage to the second full-bridge circuit 442, and the second voltage terminal VCC can be grounded.

[0158] In this way, if Fig.16A As shown in FIG. 1 , when the user presses the metal cover plate 24 of the detection device 20, the second cantilever end 432 of the deformation piece 43 will be deformed. In this case, the pressure sensitive element 44 covering the second cantilever end 432 is as shown in FIG. Fig.19CThe resistance values ​​of the fifth resistor R5 and the sixth resistor R6 shown in the figure will change, thereby changing the voltage difference between the third signal terminal S2+ and the fourth signal terminal S2-, and the voltage difference is related to the pressure of the user pressing the metal cover plate 24 ( Fig.16A The pressure of the user's pressing force, such as the second pressure value, can be matched by obtaining the above-mentioned voltage difference, so that the purpose of detecting the user's pressing force, such as the second pressure value, can be achieved.

[0159] As can be seen from the above, when the user presses the metal cover 24 of the detection device 20, Fig.19B The user pressing pressure detected by the first full-bridge circuit 441 shown in the figure, for example, the first pressure value comes from Fig.16A The deformation amount of the first cantilever end 431 of the middle deformation piece 43, Fig.19C The user pressing pressure detected by the second full-bridge circuit 442 shown, for example, the second pressure value comes from the deformation of the second cantilever end 432 of the deformable sheet 43. The first cantilever end 431 and the second cantilever end 432 are respectively located on both sides of the fixed end 430. Therefore, the processor of the electronic device 01 can judge whether the user's pressing position is in the middle of the metal cover 24 by comparing the difference between the first pressure value and the second pressure value, so as to improve the detection accuracy. Therefore, Fig.16A The detection device 20 shown can be called a dual-channel detection structure.

[0160] For example, when the difference between the first pressure value and the second pressure value is large, the position pressed by the user is biased toward the side with the larger pressure value. When the difference between the first pressure value and the second pressure value is small, the position pressed by the user is located in the middle of the metal cover plate 24. In this way, the user can be reminded to change the pressing position in time so that the pressing position is in the middle of the metal cover plate 24, thereby achieving the purpose of improving the detection accuracy.

[0161] On this basis, in order to enable the user to press to the preset position, a plurality of raised structures can be formed on the outer surface of the metal cover plate 24, and the user can clearly feel the concave and convex feeling of the touch surface during the pressing process. The position of the raised structure can match the preset pressing position, thereby guiding the user to press to the preset position and achieving the purpose of improving the detection accuracy.

[0162] In addition, in the above dual-channel detection structure provided in the embodiment of the present application, Fig.19A As shown, only four variable resistors need to be set on the pressure sensitive element 44, namely the first resistor R1, the second resistor R2, the fifth resistor R5 and the sixth resistor R6. Among them, the first resistor R1, the second resistor R2 and the third resistor R3 and the fourth resistor R4 located outside the pressure sensitive element 44 form a first full-bridge circuit 441 ( Fig.19BAs shown in FIG. 1 ), the third resistor R3 and the fourth resistor R4 can be shared with the second full-bridge circuit 442 formed by the fifth resistor R5, the sixth resistor R6, and the third resistor R3 and the fourth resistor R4 located outside the pressure-sensitive element 44. In this way, it is not necessary to directly set the eight variable resistors used to form the above two full-bridge circuits on the pressure-sensitive element 44, so as to achieve the purpose of reducing the size of the pressure-sensitive element 44, which is conducive to reducing the size of the entire detection device 20, and even the size of the electronic device 01.

[0163] The above is based on Fig.16A The detection device 20 shown in the figure adopts a resistive pressure sensing method as an example. In other embodiments of the present application, the detection device 20 can also adopt a capacitive pressure sensing method. In this case, Fig. 16B As shown, the detection device may further include a first metal electrode sheet 45 disposed on the side of the support plate 2102 away from the metal cover plate 24, and the first metal electrode sheet 45 may be electrically connected to the FPC 2101. In addition, the above-mentioned pressure-sensitive element may include Fig. 16B The second metal electrode sheet 46 in the detection device 20, a capacitor can be formed between the first metal electrode sheet 45 and the second metal electrode sheet 46. In this way, when the user presses the metal cover plate 24 of the detection device 20, the distance between the two metal electrodes changes, thereby changing the capacitance value of the capacitor, and the capacitance value matches the pressing pressure of the user, thereby achieving the purpose of detecting the pressing pressure of the user. Alternatively, in other embodiments, when the support plate 2102 includes a metal material, the support plate 2102 can serve as an electrode of a capacitor. In addition, the pressure-sensitive element 44 can be made of metal material to serve as another electrode of the capacitor, thereby realizing the above-mentioned capacitive pressure sensing method.

[0164] Alternatively, in some other embodiments of the present application, the detection device 20 may also adopt an inductive pressure sensing method. In this case, Fig.16A The support plate 2102 shown can be made of metal material, and the pressure-sensitive element 44 can include a coil. In this case, current can be passed through the coil. When the user presses the metal cover plate 24 of the detection device 20, the distance between the support plate 2102 and the pressure-sensitive element 44 changes, so that the magnetic field generated by the coil can be changed, so that the impedance of the coil changes. The above impedance can match the pressure of the user to achieve the purpose of detecting the user's pressing pressure. Alternatively, in other embodiments, the detection device may further include a metal electrode sheet arranged on the side of the support plate 2102 away from the metal cover plate 24, and the above pressure-sensitive element 44 may include a coil, in order to realize the above-mentioned inductive pressure sensing method.

[0165] From the above, we can see that Fig.16AThe detection device 20 with pressure sensing function shown in the figure is illustrated by taking the pressure sensitive element 44 in the detection device 20 as an example, which is arranged outside the middle frame 11 and the detection device is a dual-channel detection structure. In other embodiments of the present application, the pressure sensitive element 44 of the detection device 20 can be arranged inside the middle frame 11. Specifically, Fig. 20 (along Figure 2B As shown in the cross-sectional view obtained by cutting along the dotted line O1-O2 in FIG. 1 , the detection device 20 includes the first circuit board 21, the light emitting device 22, the photoelectric converter 23, the metal cover plate 24, the first pressure rod 41, the second pressure rod 42, the deformation piece 43 and the pressure sensitive element 44. Among them, the first circuit board 21 can be a PCB. The arrangement method and working process of the light emitting device 22, the photoelectric converter 23 and the metal cover plate 24 are the same as described above and will not be repeated here.

[0166] In the embodiment of the present application, the middle frame 11 is an annular structure with a hollow area, which can be a circular ring or a rectangular ring. The outside of the middle frame 11 or the outer side of the middle frame 11 refers to the side of the middle frame 11 away from the hollow area, and the inside of the middle frame 11 or the inner side of the middle frame 11 refers to the side of the middle frame 11 facing the hollow area.

[0167] In addition, continue Fig. 20 As shown, the deformation piece 43 is located in the middle frame 11, and the deformation piece 43 is arranged on the side of the first pressure rod 41 and the second pressure rod 42 away from the first circuit board 21. The deformation piece 43 has a first cantilever end 431, a second cantilever end 432, and a fixed end 430 located between the first cantilever end 431 and the second cantilever end 432. The first pressure rod 41 passes through the first mounting hole 301, and the first pressure rod 41 is arranged on the side of the first circuit board 21 away from the metal cover plate 24. The first end (for example, the upper end) of the first pressure rod 41 abuts or connects with the first circuit board 21, and the second end (for example, the lower end) of the first pressure rod 41 extends out of the first mounting hole 301, and is located in the middle frame 11, and abuts or connects with the first cantilever end 431 of the deformation piece 43. In addition, the second pressure rod 42 passes through the second mounting hole 302, and the second pressure rod 42 is arranged on the side of the first circuit board 21 away from the metal cover plate 24. The first end (for example, the upper end) of the second pressure rod 42 abuts or is connected to the first circuit board 21, and the second end (for example, the lower end) of the second pressure rod 42 extends out of the second mounting hole 302, is located in the middle frame 11, and abuts or is connected to the second cantilever end 432. The setting method of fixing the first pressure rod 41 and the second pressure rod 42 on the middle frame 11 through the clamp ring, and the method of sealing with the middle frame 11 through the sealing ring are the same as described above, and will not be repeated here.

[0168] On this basis, in order to fix the fixed end 430 of the deformable sheet 43, the electronic device may further include: Fig. 20The threaded connector 61 shown in the figure may be a bolt or a screw. The threaded connector 61 may be located in the middle frame 11 , and the threaded connector 61 passes through the fixed end 430 of the deformable sheet 43 and is connected to the middle frame 11 to fix the deformable sheet 43 to the middle frame 11 .

[0169] In addition, the pressure-sensitive element 44 is located in the middle frame 11, and the pressure-sensitive element 44 is arranged on the side of the deformation piece 43 away from the metal cover plate 24, and the pressure-sensitive element 44 covers at least a portion of the first cantilever end 431 and at least a portion of the second cantilever end 432, and the pressure-sensitive element 44 can be electrically connected to the first circuit board 21. Among them, in the pressure-sensitive element 44, the part covering the first cantilever end 431 and the part covering the second cantilever end 432 can be connected as an integral structure, or can be disconnected and separately arranged independently, and the present application does not limit this. In addition, the setting method and working process of the pressure-sensitive element 44 are the same as described above and will not be repeated here. In this embodiment, since the pressure-sensitive element 44 is arranged in the middle frame 11, the influence of external water vapor or impurities on the pressure-sensitive element 44 can be reduced, which is beneficial to improve the accuracy of pressure detection.

[0170] On this basis, in order to facilitate the deformation of the deformed deformable sheet 43 to return to the initial position after the user releases the pressing force of the metal cover plate 24, the electronic device may further include: Fig. 20 The first spring 71 and the second spring 72 are shown. The first spring 71 is located in the mounting groove 300, a portion of the first pressure rod 41 passes through the first spring 71, and the two ends of the first spring 71 are respectively in contact with the first pressure rod 41 and the bottom of the mounting groove 300. In addition, the second spring 72 is located in the mounting groove 300, a portion of the second pressure rod 42 passes through the second spring 72, and the two ends of the second spring 72 are respectively in contact with the second pressure rod 42 and the bottom of the mounting groove 300. Based on this, in order to make the first pressure rod 41 abut against the first spring 71, the end of the first pressure rod 41 abutting against the first spring 71 can be set to a step shape. Similarly, in order to make the second pressure rod 42 abut against the second spring 72, the end of the second pressure rod 42 abutting against the second spring 72 can be set to a step shape. When the user does not press the detection device 20, the first spring 71 and the second spring 72 may be in a compressed state. Therefore, by adjusting the distance between the step-like structure and the bottom of the mounting groove 300, the compression amount of the first spring 71 and the second spring 72 may be adjusted.

[0171] In addition, if Fig.21 (along Figure 2BAs shown in the cross-sectional view obtained by cutting along the dotted line C1-C2 in the figure, the electronic device may further include an FPC, one end of which may be electrically connected to the first circuit board 21 located in the mounting groove 300, and the other end of the FPC may pass through the plug 54 and the second adhesive layer 55 to extend into the middle frame 11, thereby being electrically connected to the mainboard in the middle frame 11.

[0172] From the above, we can see that Fig.16A Shown and Fig. 20 The detection device 20 shown in the figure is described by taking the detection device 20 as a dual-channel detection structure as an example. Fig. 22 (along Figure 2B As shown in the cross-sectional view obtained by cutting along the dotted line O1-O2 in the figure, the detection device 20 can also be a single-channel detection structure, and the pressure-sensitive element 44 is arranged in the middle frame 11. Specifically, the detection device 20 includes the above-mentioned first circuit board 21, the light-emitting device 22, the photoelectric converter 23, the metal cover plate 24, the first pressure rod 41, the deformation piece 43 and the pressure-sensitive element 44. Among them, the first circuit board 21 can be an FPC. The setting method and working process of the light-emitting device 22, the photoelectric converter 23 and the metal cover plate 24 are the same as described above and will not be repeated here.

[0173] Based on this, continue as Fig. 22 As shown, a first mounting hole 301 penetrating the middle frame 11 is provided at the bottom of the mounting groove 300. A first pressure rod 41 penetrates the first mounting hole 301, and the first pressure rod 41 is arranged on the side of the first circuit board away from the metal cover plate 24, and the first end of the first pressure rod 41 abuts or is connected to the first circuit board 21. The deformation piece 43 is located in the middle frame 11, and the deformation piece 43 is arranged on the side of the first pressure rod 41 away from the first circuit board 21. The deformation piece 43 has a first cantilever end 431 and a fixed end 430, the first cantilever end 431 abuts against the second end of the first pressure rod 41, and the fixed end 430 of the deformation piece 43 is connected to the middle frame 11. For example, a mounting hole can be provided on the inner wall of the middle frame 11, and the fixed end 430 of the deformation piece 43 can be embedded in the above-mentioned mounting hole and bonded to the middle frame 11 through an adhesive layer. Alternatively, a threaded connector may be used, which passes through the fixed end 430 of the deformable piece 43 and is connected to the middle frame 11 , so as to fix the fixed end 430 of the deformable piece 43 on the middle frame 11 .

[0174] In addition, the pressure-sensitive element 44 is located in the middle frame 11, and is arranged on the side of the deformation piece 43 away from the metal cover plate 24, and the pressure-sensitive element 44 can cover at least a portion of the first cantilever end 431 of the deformation piece 43. As mentioned above, the pressure-sensitive element 44 is electrically connected to the first circuit board 21. The setting method and working process of the pressure-sensitive element 44 are the same as those described above and will not be repeated here. In addition, the technical effect of setting the pressure-sensitive element 44 in the middle frame 11 is the same as those described above and will not be repeated here. Based on this, Fig. 22 In the structure shown, the deformable piece 43 has only one cantilever end, namely the first cantilever end 431 , so the size of the deformable piece 43 can be reduced, which is helpful to simplify the size of the entire detection device 20 .

[0175] On this basis, for example, the electronic device may include a first adhesive layer 56 and a second snap ring 57, the first adhesive layer 56 is disposed between the first circuit board 21 and the bottom of the mounting groove 300, and the first adhesive layer 56 may be connected to the first circuit board 21 and the bottom of the mounting groove 300. The above-mentioned first adhesive layer 56 may be a glue layer, so that the first circuit board 21 and the various components disposed on the first circuit board 21 can be fixed on the middle frame 11. In addition, the second snap ring 57 is located in the middle frame 11, the second snap ring 57 is clamped to the second end of the first pressure rod 41, and the second snap ring 57 is abutted against the middle frame 11. In this way, in the process of the user pressing the detection device 20, the movement of the first pressure rod 41 along the Y direction can be limited by the above-mentioned second snap ring 57.

[0176] In other embodiments of the present application, when the detection device 20 adopts Fig. 22 When the structure is changed, the detection device can also be made into a dual-channel detection structure by changing the structure of the cantilever end of the deformation piece 43. Fig.23A As shown, the deformable sheet 43 may include two cantilever ends, namely a first cantilever end 431 and a second cantilever end 432. The second cantilever end 432 is located on a side of the first cantilever end 431 away from the fixed end 430. There is a gap H between the first cantilever end 431 and the second cantilever end 432. Fig. 22 As shown in FIG. 4 , the first cantilever end 431 is covered with at least a portion of the first cantilever end 431, and the second cantilever end 432 is also covered with at least a portion of the second cantilever end 432. Fig. 23B As shown, the second end (e.g., the lower end) of the first pressure rod 41 can be simultaneously in contact with or connected to the first cantilever end 431 and the second cantilever end 432. In this way, by providing a pressure rod, the first pressure rod 41 can simultaneously press the first cantilever end 431 and the second cantilever end 432, thereby simultaneously driving the first cantilever end 431 and the second cantilever end 432 to deform, thereby achieving the purpose of dual-channel pressure detection.

[0177] In summary, if Fig.24As shown, the detection device 20 in the electronic device 01 provided in the embodiment of the present application may include a PPG module, an ECG electrode and a pressure sensing module. Fig.16A The light emitting device 22 and the photoelectric converter 23 shown in the figure can obtain the PPG data of the user's blood oxygen, heart rate, etc. ECG electrodes, such as the metal cover plate 24, or the metal cover plate 24 and the metal coating 241 can obtain ECG data. The pressure sensing module includes a first pressure rod 41, a deformation sheet 43, a pressure sensitive element 44 and other components for detecting the pressing pressure of the user. The above-mentioned pressure sensing module can be the above-mentioned resistive, capacitive or inductive. Continue as Fig.24 As shown, the processor in the electronic device 01 can calculate the user's blood pressure value by combining PPG data, ECG data and detected pressure value, and then display the above blood pressure, blood oxygen and heart rate information through the display.

[0178] On this basis, in some embodiments of the present application, the detection device 20 can also be used as a virtual key. For example, when the user presses the detection device 20, the processor can control the vibration motor to vibrate after obtaining the user's pressing pressure through the pressure sensing module. The vibration intensity can match the user's pressing pressure, so that the user can feel the pressing experience. In addition, the processor can also control the electronic device 01 to turn on the corresponding key function to realize the function of the virtual key.

[0179] Alternatively, in some other embodiments of the present application, the detection device 20 may also be used as part of a physical button. In this case, the electronic device may further include a pot connected to the pressure sensing module in the detection device 20. When the user presses the detection device 20, the pot may be driven to deform, thereby executing the button function.

[0180] The above is an example of integrating the pressure sensing module into the detection device 20. In other embodiments of the present application, the detection device 20 having the PPG module and the ECG electrode can be provided separately from the pressure sensing module. In this case, the detection device 20 may not have a button function.

[0181] The following is an example of a control method of an electronic device 01 having a detection device 20 with a key function and a health detection function. Specifically, the control method of the electronic device 01 is as follows: Fig.25 As shown, it may include S101 to S114.

[0182] S101, scanning a pressure-sensitive element at a first scanning frequency.

[0183] For example, by executing the above S101, a user pressing event on the detection device 20 can be identified. In addition, the pressure sensitive element 44 in the pressure sensing module 400 is scanned using a first scanning frequency f1 with a lower frequency, so that the pressure sensing module 400 operates at a lower first power consumption, thereby achieving the purpose of reducing power consumption.

[0184] S102: Determine whether the health detection function is enabled.

[0185] For example, Fig.26 As shown, a health detection function button 80 can be displayed on the display screen of the electronic device 01, and the user can turn on or off the health detection function by touching the health detection function button 80 on the display screen. Among them, the above-mentioned health detection function may include detecting data such as the user's blood oxygen, heart rate or blood pressure. Therefore, to determine whether the health detection function is turned on, specifically the start-up operation of the light emitting device 22 function and the start-up operation of the photoelectric converter 23 function in the detection device 20. When the health detection function is turned on, the processor can detect the start-up operation of the light emitting device 22 function and the start-up operation of the photoelectric converter 23 function. When the health detection function is turned off, the processor cannot detect the start-up operation of the light emitting device 22 function and the start-up operation of the photoelectric converter 23 function.

[0186] Based on this, when Fig.25 When the judgment result of S102 is "no", that is, when the above health detection function is in the off state, the following S111 to S114 can be executed to execute the key function. Alternatively, when the judgment result of S102 is "yes", that is, when the above health detection function is in the on state, the following S103 to S108 can be executed to execute the health detection function.

[0187] S103: Display a guidance image.

[0188] In some embodiments of the present application, the electronic device 01 may display a guide image, which is used to display a guide message during the execution of the health detection function to prompt the user to complete the health detection. For example, when starting the health detection, the following image may be displayed: Fig. 27 The prompt message "Please press your finger directly to the key position" is shown. In the health detection process, the above-mentioned guidance image can be adjusted according to the content that needs guidance, and this application does not limit the content of the guidance image.

[0189] S104: Determine whether the user's body (eg, finger) directly presses the detection device.

[0190] For example, in some embodiments, since the health detection function has been turned on, when the user's finger directly presses the detection device 20, Fig.16AWhen the light emitting device 22 in the detection device 20 shown emits infrared light, the infrared light is used to implement infrared proximity detection. Since infrared light can be absorbed by hemoglobin and deoxyhemoglobin in the blood, it is possible to obtain PPG data to determine whether the user's finger is directly pressing the detection device 20.

[0191] Alternatively, in some other embodiments, a voltage may be applied to the metal cover plate 24 so that the metal cover plate 24 is used as an ECG electrode. When the user's finger presses the detection device 20, the impedance change on the path formed by the ECG electrode and the human body may be obtained to determine whether the user's finger directly presses the detection device 20. Based on this, when the judgment result of S104 is "yes", the following S105 may be executed. When the judgment result of S104 is "no", S103 may be executed to display the following Fig. 27 Guidance image shown.

[0192] S105 , scanning the pressure-sensitive element at a second frequency to obtain a pressure value F, driving the PPG module, and driving the ECG electrodes to obtain an electrocardiogram signal.

[0193] For example, the processor may use a second scanning frequency f2 (where f2>f1) with a higher frequency to scan the pressure sensitive element 44 in the pressure sensing module 400, so that the pressure sensing module 400 operates at a higher second power consumption (where the second power consumption is greater than the first power consumption), thereby achieving the purpose of obtaining the pressure value F applied by the user to the metal cover plate 24. Fig.13 As shown) the above-mentioned resistive, capacitive or inductive pressure sensing detection principles can be utilized.

[0194] In addition, the processor can drive all light-emitting elements (including visible light-emitting elements and infrared light-emitting elements) in the light-emitting device 22 in the detection device 20 and the photoelectric converter 23 to start the PPG module, thereby obtaining the user's PPG data (including blood oxygen data and heart rate data) by obtaining the output signal of the photoelectric converter 23. In addition, the processor can also apply voltage to the metal cover plate 24 to drive the metal cover plate 24 as an ECG electrode to obtain an electrocardiogram signal.

[0195] S106. Determine whether F1≤F≤F2.

[0196] For example, the processor is executing Fig.25 In the process of S106 shown, if the pressure value F obtained in S102 is greater than or equal to the first threshold F1 and less than or equal to the second threshold F2, the following S107 can be executed. The second threshold F2 is greater than the first threshold F1, for example, F1 = 10gf, F2 = 300gf.

[0197] S107, data calculation. For example, the above S108 may include: Fig.28 S201~S203 shown.

[0198] S201, collecting PPG data, ECG data and pressure data for a certain period of time.

[0199] For example, in order to improve the accuracy of calculating blood pressure, the processor can continuously collect the above-mentioned PPG data, ECG data and pressure data within a certain period of time.

[0200] S202: Determine in real time whether the collected PPG data, ECG data, and pressure data meet preset requirements.

[0201] For example, the processor can compare the collected PPG data, ECG data and pressure data with the preset requirements, such as data accuracy, data duration, etc. in real time. If the judgment result of S202 is "yes", that is, the above data meets the preset requirements, then Fig.25 If the judgment result of S202 is "no", that is, the above data does not meet the preset requirements, for example, the user's finger does not keep pressing the state, then it can be displayed Fig.29 The prompt dialog box 81 shown in the figure prompts the user to press the detection device 20 again. When the user presses the detection device again, the following operations can be performed: Fig.25 S105 is shown to regain the pressure value F.

[0202] S203, call the algorithm and calculate the value. For example, the processor can call the relevant algorithm from the memory, according to Fig.25 In S107 shown, at least one of the pressure value, the output signal of the photoelectric converter and the electrocardiogram signal is obtained to determine the detection result, and the detection result may include at least one of the blood oxygen value, the heart rate value, the electrocardiogram data and the blood pressure value.

[0203] S108. Display at least one of blood oxygen, heart rate and blood pressure.

[0204] like Fig.30 As shown, the electronic device 01 can display the test result, which includes at least one of the above-mentioned blood oxygen, heart rate and blood pressure data. And the above-mentioned blood oxygen, heart rate and blood pressure data can change in real time according to the change of the user's pressing force. When the user presses the force to the middle stage of the pressure scale 70, the displayed blood oxygen, heart rate and blood pressure data are used as the final test data.

[0205] Among them, the arrow in the pressure scale 70 can move on the scale following the size of the user's pressing force. The different colored stages on the pressure scale 70 can indicate the size of the user's pressing force. Alternatively, in other embodiments, one side of the pressure scale 70 can also display the size of the pressure value F, for example, 200gf. In this way, it can be guided that the pressure value applied by the user when pressing can be within a preset range, such as (10gf~300gf), and the range can correspond to the position of the middle stage of the pressure scale 70, thereby achieving the purpose of improving the detection accuracy. Alternatively, when the above-mentioned detection device 20 has a dual-channel pressure sensing detection function, the electronic device 01 can also display a pressing position prompt image through the results of the dual-channel pressure sensing detection to prompt the user to press to the preset position, thereby achieving the purpose of improving the detection accuracy.

[0206] S109, end.

[0207] In addition, from the above, it can be seen that when Fig.25 When the judgment result of S102 is "No", that is, when the above-mentioned health detection function is in a closed state, the following S111 to S114 can be executed to execute the key function.

[0208] S111 . After the pressure-sensitive element detects a signal, the pressure-sensitive element is scanned at a second scanning frequency to obtain a pressure value F.

[0209] The signal detected by the pressure-sensitive element 44 is a pressure signal generated when the user presses the metal cover plate 24 of the detection device 20 .

[0210] S112. Determine whether F≥F3.

[0211] For example, if the pressure value F obtained in S112 is greater than or equal to the third threshold value F3, S113 is executed. The third threshold value F3 may be in the range of 10 gf to 300 gf. When the judgment result of S112 is "No", the above S111 is executed to re-acquire the pressure value F.

[0212] S113: Determine whether the user performs a touch operation.

[0213] For example, in order to prevent the detection device 20 from being falsely triggered due to "non-user triggering reasons" during the user's use of the electronic device, for example, "temperature conflict" caused by a sudden change in the ambient temperature of the electronic device, in some embodiments of the present application, before executing S114, S113 may be executed to determine whether the pressing force of the pressing detection device 20 comes from the user's touch operation. Specifically, when Fig.16AWhen the light emitting device 22 in the detection device 20 shown is capable of emitting infrared light, the infrared light can be used to implement infrared proximity detection. If a user's touch operation on the metal cover plate 24 is detected, the above S114 can be executed. If a user's touch operation on the metal cover plate 24 is not detected, S109 can be executed. In other embodiments of the present application, S113 may not be required in the above control method.

[0214] S114, execute key function.

[0215] For example, during the execution of S114, when the detection device 20 is a virtual key, the processor may control Fig.24 The vibration motor shown works and performs the key function. Alternatively, when the detection device 20 is a physical key, the detection device 20 can drive the pot piece to deform and perform the key function.

[0216] After executing the above S114, S109 may be executed to end the above control method.

[0217] To sum up, the control method of the electronic device 01 provided in the embodiment of the present application can realize both health data detection and key response function, so that health detection and keys can be integrated into the same detection device 20, thereby achieving the purpose of improving the integration of the electronic device 01 and reducing the size of the electronic device 01.

[0218] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A detection device, characterized in that: include: a first circuit board; a light emitting device, disposed on the first circuit board and electrically connected to the first circuit board; A photoelectric converter, arranged on the same side of the first circuit board as the light emitting device, the photoelectric converter being electrically connected to the first circuit board; A metal cover plate, which is covered on the first circuit board and is electrically connected to the first circuit board; a receiving cavity is formed between the metal cover plate and the first circuit board, and the light emitting device and the photoelectric converter are arranged in the receiving cavity; a first light through hole and a second light through hole penetrating the metal cover plate are formed on the metal cover plate, the first light through hole exposes the light emitting surface of the light emitting device, and the second light through hole exposes the light receiving surface of the photoelectric converter; A light-transmitting structure is filled in the first light-through hole, the second light-through hole and the accommodating cavity, and the light-transmitting structure wraps the light-emitting device and the photoelectric converter, and is connected to the light-emitting device, the photoelectric converter, the first circuit board and the metal cover.

2. The detection device according to claim 1, characterized in that: The detection device comprises: A first pressure rod, disposed on a side of the first circuit board facing away from the metal cover, wherein a first end of the first pressure rod abuts against or is connected to the first circuit board; A deformable sheet, arranged on a side of the first pressure rod away from the first circuit board, the deformable sheet having a first cantilever end and a fixed end, the first cantilever end abutting or connected to the second end of the first pressure rod, and the fixed end being used to fix the deformable sheet; A pressure-sensitive element covers at least a portion of the first cantilever end, and the pressure-sensitive element is electrically connected to the first circuit board.

3. The detection device according to claim 2, characterized in that: The pressure-sensitive element is arranged on a side of the deformation sheet facing the metal cover plate, and the detection device further comprises: The mounting post is located on a side of the deformable sheet away from the metal cover plate, the first end of the mounting post is connected to the fixed end, and the second end of the mounting post is used to fix the detection device.

4. The detection device according to claim 2 or 3, characterized in that: The pressure-sensitive element comprises a resistance strain gauge, and a portion of the resistance strain gauge covering the first cantilever end has a first resistor and a second resistor; The detection device also includes a third resistor and a fourth resistor; wherein, the first resistor and the second resistor are connected in series to form a first circuit, the third resistor and the fourth resistor are connected in series to form a second circuit, the first circuit and the second circuit are connected in parallel to form a first full-bridge circuit, and the first full-bridge circuit is electrically connected to the first circuit board.

5. The detection device according to claim 4, characterized in that: The deformable sheet also has a second cantilever end, and the fixed end is located between the first cantilever end and the second cantilever end; the pressure-sensitive element covers at least a portion of the second cantilever end; The detection device also includes a second pressure rod, which is arranged on a side of the first circuit board away from the metal cover plate, the first end of the second pressure rod abuts or is connected to the first circuit board, and the second end of the second pressure rod abuts or is connected to the second cantilever end.

6. The detection device according to claim 4, characterized in that: The deformable sheet further has a second cantilever end, the second cantilever end is located on a side of the first cantilever end away from the fixed end, and there is a gap between the first cantilever end and the second cantilever end; the pressure sensitive element covers at least a portion of the second cantilever end; The second end of the first compression rod is also abutted against or connected to the second cantilever end.

7. The detection device according to claim 5 or 6, characterized in that: The part of the resistance strain gauge covering the second cantilever end has a fifth resistor and a sixth resistor; wherein the fifth resistor and the sixth resistor are connected in series to form a third circuit; the second circuit and the third circuit are connected in parallel to form a second full-bridge circuit, and the second full-bridge circuit is electrically connected to the first circuit board.

8. The detection device according to claim 2, 5 or 6, characterized in that: The first circuit board comprises: Flexible circuit boards; A support plate, disposed on a side of the flexible circuit board away from the metal cover plate, the support plate being connected to or abutting against the first pressure rod; or, The first circuit board includes a printed circuit board.

9. The detection device according to claim 8, characterized in that: The detection device also includes A first metal electrode sheet, disposed on a side of the support plate away from the metal cover plate, the first metal electrode sheet being electrically connected to the flexible circuit board; The pressure-sensitive element is located between the deformation sheet and the metal support plate. The pressure-sensitive element includes a second metal electrode sheet. A capacitor is formed between the second metal electrode sheet and the first metal electrode sheet.

10. The detection device according to claim 8, characterized in that: The support plate comprises a metal material; The pressure-sensitive element is located between the deformation sheet and the support plate, and the pressure-sensitive element includes a metal coil.

11. The detection device according to any one of claims 1 to 10, characterized in that: The detection device also includes: The conductive silicone is disposed between the metal cover plate and the first circuit board, wherein a first end of the conductive silicone is electrically connected to the metal cover plate, and a second end of the conductive silicone is electrically connected to the first circuit board.

12. The detection device according to any one of claims 1 to 10, characterized in that: The detection device also includes: The conductive adhesive is disposed between the metal cover plate and the first circuit board, the conductive adhesive is bonded to the metal cover plate and the copper leakage part of the first circuit board, and the conductive adhesive is electrically connected to the metal cover plate and the first circuit board.

13. The detection device according to any one of claims 1 to 10, characterized in that: The detection device also includes: A metal spring is arranged in the accommodating cavity; wherein the first end of the metal spring is welded to the metal cover plate, and the second end of the metal spring abuts against the copper leakage part of the first circuit board; or, the second end of the metal spring is welded to the first circuit board, and the first end of the metal spring abuts against the metal cover plate.

14. The detection device according to any one of claims 1 to 13, characterized in that: The metal cover plate comprises: A metal cover body, which is covered on the first circuit board and is electrically connected to the first circuit board; the metal cover body is provided with the first light-through hole and the second light-through hole which are spaced apart from each other; A light-shielding baffle is disposed in the accommodating cavity, and the light-shielding baffle is connected to the metal cover body and the first circuit board; the light-shielding baffle is located between the first light-through hole and the second light-through hole, and separates the light-emitting device from the photoelectric converter.

15. The detection device according to any one of claims 1 to 14, characterized in that: The light-shielding connection layer is disposed between the metal cover plate and the first circuit board, and the light-shielding connection layer is connected to the metal cover plate and the first circuit board.

16. The detection device according to claim 15, characterized in that: The surface of the light-transmitting structure facing away from the first circuit board and the surface of the metal cover plate facing away from the first circuit board are spliced ​​into an arc surface.

17. The detection device according to any one of claims 1 to 16, characterized in that: The detection device comprises a metal coating, and the metal coating covers a surface of the metal cover plate facing away from the first circuit board.

18. The detection device according to any one of claims 1 to 17, characterized in that: The light emitting device comprises: A first light-emitting component, configured to emit at least one of red light or infrared light, wherein a first distance d1 exists between the first light-emitting component and the photoelectric converter; The second light-emitting component is used to emit at least one of yellow light, green light and blue light. There is a second distance d2 between the second light-emitting component and the photoelectric converter, and d1>d2.

19. An electronic device, characterized in that: include: The detection device according to any one of claims 1 to 18; The detection device is connected to the middle frame; a mounting groove is provided on the outer surface of the middle frame; the first circuit board, the light-emitting device, the photoelectric converter, the metal cover plate and the light-transmitting structure are located in the mounting groove, and the first circuit board is close to the bottom of the mounting groove relative to the metal cover plate.

20. The electronic device according to claim 19, characterized in that A first mounting hole penetrating through the middle frame is provided at the bottom of the mounting groove; the detection device comprises: A deformable sheet, located in the mounting groove, wherein the deformable sheet has a fixed end; A mounting post, located on a side of the deformable sheet away from the metal cover plate and passing through the first mounting hole, wherein a first end of the mounting post is connected to the fixed end, and a second end of the mounting post extends out of the first mounting hole and is located in the middle frame; The electronic device further comprises: An elastic layer, located in the mounting groove, and the elastic layer is arranged between the deformable sheet and the bottom of the mounting groove; The first clamping ring is located in the middle frame, the first clamping ring is clamped on the second end of the mounting column, and the first clamping ring is in contact with the middle frame.

21. The electronic device according to claim 20, characterized in that: The elastic layer comprises silicone or rubber; or, The elastic layer includes a soft rubber layer and a plurality of particles doped in the soft rubber layer; the hardness of the particles is greater than the hardness of the soft rubber layer; wherein the soft rubber layer includes silicone or rubber, and the particles include at least one of metal, plastic or rubber.

22. The electronic device according to claim 20 or 21, characterized in that: A first sealing groove is formed on the portion of the mounting post located in the first mounting hole; The electronic device comprises a first sealing ring, the first sealing ring is located in the first sealing groove, and the first sealing ring abuts against a hole wall of the first mounting hole and a groove wall of the first sealing groove.

23. The electronic device according to claim 19, characterized in that: A first mounting hole penetrating through the middle frame is provided at the bottom of the mounting groove; the detection device comprises: A first pressure rod, passing through the first mounting hole, the first pressure rod is arranged on a side of the first circuit board away from the metal cover plate, a first end of the first pressure rod is abutted against or connected to the first circuit board, and a second end of the first pressure rod extends out of the first mounting hole and is located in the middle frame; The electronic device further comprises: A first adhesive layer is located in the mounting groove, and the first adhesive layer is disposed between the first circuit board and the bottom of the mounting groove, and is connected to the first circuit board and the bottom of the mounting groove; The second clamping ring is located in the middle frame, the second clamping ring is clamped on the second end of the first pressure rod, and the second clamping ring is in contact with the middle frame.

24. The electronic device according to claim 19, characterized in that The detection device also includes: A deformable sheet, located in the middle frame, and having a fixed end; The electronic device further comprises a threaded connector, which is located in the middle frame, passes through the fixed end of the deformable sheet, and is connected to the middle frame.

25. The electronic device according to claim 19, characterized in that The electronic device further comprises: The bottom of the mounting groove is provided with a first mounting hole and a second mounting hole penetrating the middle frame; the detection device comprises: A first pressure rod, passing through the first mounting hole, the first pressure rod is arranged on a side of the first circuit board away from the metal cover plate, a first end of the first pressure rod is abutted against or connected to the first circuit board, and a second end of the first pressure rod extends out of the first mounting hole and is located in the middle frame; a second pressure rod, passing through the second mounting hole, the second pressure rod being arranged on a side of the first circuit board away from the metal cover plate, the first end of the second pressure rod being in contact with or connected to the first circuit board, the second end of the second pressure rod extending out of the second mounting hole and being located in the middle frame; A first spring is located in the installation groove, a portion of the first pressure rod passes through the first spring, and two ends of the first spring are respectively in contact with the first pressure rod and the bottom of the installation groove; The second spring is located in the installation groove, a part of the second pressure rod passes through the second spring, and two ends of the second spring are respectively in contact with the second pressure rod and the bottom of the installation groove.

26. The electronic device according to any one of claims 19 to 25, characterized in that: The first circuit board includes a flexible circuit board, and a third mounting hole penetrating the middle frame is formed at the bottom of the mounting groove; The electronic device further comprises: A plug, disposed in the third mounting hole, to block the third mounting hole; A second adhesive layer is disposed in the third mounting hole and is located on a side of the plug away from the mounting groove, and the second adhesive layer is bonded to the plug and the middle frame; The second circuit board is arranged in the middle frame, and a part of the flexible circuit board passes through the plug and the second adhesive layer, extends into the middle frame and is electrically connected to the second circuit board.

27. A method for controlling an electronic device, characterized in that: The electronic device comprises a detection device, the detection device has a key function and a health detection function, and the detection device comprises a light emitting device, a photoelectric converter, a metal cover plate and a pressure sensitive element; The control method comprises: Scanning the pressure-sensitive element at a first scanning frequency to identify a pressing event of the detection device by a user; Determine whether the health detection function is turned on; If the health detection function is turned on, the health detection function is executed; If the health detection function is not turned on, the key function is executed.

28. The control method according to claim 27, characterized in that: The health detection function is specifically: displaying a guidance image; If the user's body directly presses the detection device, the pressure-sensitive element is scanned at a second scanning frequency to obtain the pressure value applied by the user to the metal cover, the light-emitting device and the photoelectric converter are started, and a voltage is applied to the metal cover to obtain the user's electrocardiogram signal; wherein the second scanning frequency is greater than the first scanning frequency; If the pressure value is greater than or equal to the first threshold value and less than or equal to the second threshold value, determining a detection result according to at least one of the pressure value, the output signal of the photoelectric converter and the electrocardiogram signal; The test result is displayed, wherein the test result includes at least one of a blood oxygen value, a heart rate value, an electrocardiogram data, and a blood pressure value.

29. A computer storage medium, characterized in that The method comprises computer instructions, which, when executed on an electronic device, cause the electronic device to execute the control method of the electronic device as claimed in claim 27 or 28.

30. A computer program product, characterized in that When the computer program product is executed on a computer, the computer is enabled to execute the control method of the electronic device according to claim 27 or 28.

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