CN114533011A

CN114533011A - Heart rate detection assembly and terminal

Info

Publication number: CN114533011A
Application number: CN202011346159.0A
Authority: CN
Inventors: 娄椿杰; 江忠胜
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2022-05-27

Abstract

The present disclosure relates to a heart rate detection assembly and a terminal. The heart rate detection assembly of this disclosure includes: a light-transmitting cover plate; the surface of the substrate, which is close to the light-transmitting cover plate, is provided with a light-emitting device and a first photosensitive chip; the light-emitting device is used for emitting first light to a human body to be detected above the light-transmitting cover plate; the first photosensitive chip is used for receiving a first signal formed by reflecting a first light ray by a human body to be detected, wherein the first signal is used for detecting and obtaining the heart rate of the human body to be detected; and the packaging layer is arranged between the light-transmitting cover plate and the substrate and used for connecting the light-transmitting cover plate and the substrate. The setting of this disclosure can make the terminal have the function of detecting human rhythm of the heart to, can not influence the implementation of other parts of terminal and function.

Description

Heart rate detection assembly and terminal

Technical Field

The present disclosure relates to the field of biometric identification, and in particular, to a heart rate detection assembly and a terminal.

Background

At present, the biological recognition function is more and more applied to the terminal equipment, on the one hand, the functions and the use scenes of the terminal equipment can be increased, on the other hand, the heart rate detection can be more convenient, and the heart rate data can be easily acquired by a user.

In the related art, a component capable of emitting light is generally used to emit strong light to illuminate blood vessels of a user, and the heart rate of the user is obtained by collecting blood information in the blood vessels of the user in different diastole and systole, for example, the component can emit the strong light through a flash lamp on a camera, or the component can emit the strong light through a luminous layer of a display screen.

However, both methods may cause damage to other components of the terminal, resulting in a degradation of the quality of the relevant components of the terminal.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a heart rate detection assembly and a terminal.

According to a first aspect of embodiments of the present disclosure, there is provided a heart rate detection assembly comprising: a light-transmitting cover plate; the surface of the substrate, which is close to the light-transmitting cover plate, is provided with a light-emitting device and a first photosensitive chip; the light-emitting device is used for emitting first light to a human body to be detected above the light-transmitting cover plate; the first photosensitive chip is used for receiving a first signal formed by reflecting the first light by the human body to be detected, wherein the first signal is used for detecting and obtaining the heart rate of the human body to be detected; and the packaging layer is arranged between the light-transmitting cover plate and the substrate and is used for connecting the light-transmitting cover plate and the substrate.

In an embodiment, the light emitting device is further configured to emit a second light to the human body to be detected, wherein the light intensity of the second light is lower than the light intensity of the first light; the first photosensitive chip is further used for receiving a second signal formed by the reflection of the human body to be detected and the second light, wherein the second signal is used for detecting the lines of the human body to be detected.

In an embodiment, the light emitting device is further configured to emit a third light to the human body to be measured, wherein the light intensity of the third light is lower than the light intensity of the first light; the heart rate detection assembly further comprises: the second sensitization chip set up in the base plate, just the second sensitization chip is used for receiving the warp the human reflection of awaiting measuring the third image that third light formed, wherein, the third image is used for detecting the human line of awaiting measuring.

In an embodiment, the heart rate detection assembly further comprises: the distance sensing module is arranged on the substrate and used for sensing the distance between the human body to be detected and the heart rate detection assembly, and if the sensed distance is smaller than a threshold value, a trigger instruction is triggered to start the light-emitting device.

In one embodiment, the light transmittance of the encapsulation layer is greater than or equal to 90%; and/or the light transmittance of the light-transmitting cover plate is greater than or equal to 90%.

In one embodiment, the encapsulation layer is composed of a resin material.

In an embodiment, the second side of the substrate is further provided with a pad.

In an embodiment, the heart rate detection assembly further comprises a support member; the supporting component is arranged on one surface of the substrate, which is far away from the light-transmitting cover plate.

According to a second aspect of embodiments of the present disclosure, there is provided a terminal comprising a heart rate detection assembly as described in any one of the preceding embodiments.

In an embodiment, the heart rate detection component is disposed in a non-display area of the terminal.

In an embodiment, the heart rate detection assembly further includes a supporting member, and one end of the supporting member is disposed on a surface of the substrate away from the transparent cover plate; the terminal is provided with a groove, and the other end of the supporting component is arranged in the groove.

In an embodiment, the terminal comprises a stop member arranged inside the recess for fixing the support member to the terminal.

In an embodiment, the encapsulation layer is configured to fill the opening of the groove.

In an embodiment, the maximum cross-section of the support member is larger than the cross-section at the opening.

In one embodiment, the limiting part is buckled in the groove and has elasticity; the heart rate detection assembly is configured as a power key of the terminal, and a power switch is arranged at the bottom of the groove; and one surface of the supporting component facing the bottom of the groove is provided with a conductive component, and the heart rate detection component is in contact with the power switch through the conductive component.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the embodiment of the disclosure is to set up light emitting device and first sensitization chip on the base plate, and light emitting device sends first light to the human body that awaits measuring, and first sensitization chip receives the first signal that the human body reflection first light that awaits measuring formed to make heart rate detection subassembly can acquire the human rhythm of the heart that awaits measuring. And, utilize the encapsulation layer to encapsulate light emitting device, first sensitization chip and base plate for this disclosure heart rate detection subassembly can be installed in arbitrary suitable position on the terminal as an independent part.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a diagram illustrating a terminal according to the related art.

Fig. 2 is another terminal shown according to the related art.

Fig. 3 is a schematic diagram illustrating a configuration of a heart rate detection assembly according to an exemplary embodiment.

Fig. 4 is a schematic diagram illustrating a cross-sectional structure of a heart rate detection assembly according to an exemplary embodiment.

FIG. 5 is a schematic diagram illustrating a ray path from a heart rate detection assembly according to an exemplary embodiment.

Fig. 6 is a schematic structural diagram of a terminal provided with a heart rate detection component according to an exemplary embodiment.

FIG. 7 is a schematic diagram illustrating a ray path from a heart rate detection assembly according to another exemplary embodiment.

Fig. 8 is a schematic diagram illustrating a configuration of a heart rate detection assembly according to another exemplary embodiment.

Fig. 9 is a schematic diagram illustrating a configuration of a heart rate detection assembly according to another exemplary embodiment.

Fig. 10 is an exploded view of a heart rate detection assembly shown in accordance with an exemplary embodiment.

Fig. 11 is a schematic diagram illustrating a packaged configuration of a heart rate detection assembly according to an example embodiment.

Fig. 12 is a diagram illustrating a shape of an encapsulation layer, according to an example embodiment.

Fig. 13 is a schematic structural diagram of a middle frame with a heart rate detection assembly installed therein according to an exemplary embodiment.

Fig. 14 is a schematic structural diagram of a middle frame with a heart rate detection assembly installed therein according to another exemplary embodiment.

FIG. 15 is a flowchart illustrating a method of detecting heart rate according to an example embodiment.

Fig. 16 is a flow chart illustrating a method of detecting heart rate according to another exemplary embodiment.

Fig. 17 is a flowchart illustrating a method of detecting heart rate according to another exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 is a terminal according to the related art, and as shown in fig. 1, in some embodiments, a flash lamp 32 of a mobile phone 30 may be used to emit a strong light to illuminate the subcutaneous capillaries of the fingertip, and then a camera module may be used to collect information about the blood changes in the blood vessels.

For example, when the heart pushes fresh blood into the capillaries, the brightness (depth of red) will change slightly, and this regularly changing interval can be monitored by the camera module 31. Simultaneously, increase the algorithm on camera module 31, can acquire heart rate information to can also calculate the heartbeat.

When detecting the rhythm of the heart, place the cell-phone on camera module 31 and flash light 32, then detect, but need place the finger in camera module department like this, the camera top needs to be put to the finger, uses for a long time, can lead to the condition such as camera is dirty, wearing and tearing, influences the effect of making a video recording.

Fig. 2 is another terminal shown in the related art, and as shown in fig. 2, in some aspects, a heart rate sensing module may be further added to the fingerprint identification module 33 of the mobile phone 30 to obtain heart rate information. For example, the light emitted by the luminescent layer of the display screen can illuminate the subcutaneous capillaries of the fingertip.

When the heart presses fresh blood into the capillary vessel, the color of the blood in the blood vessel can be slightly changed, the heart rate sensing module monitors the interval of regular change by acquiring the information of the color change of the blood, and then the heart beat is calculated.

This solution requires that the display has an adjustable self-luminescent layer, and can only be used for flexible displays, such as OLED (organic light-Emitting Diode). However, it cannot be applied to a rigid Display screen such as an LCD (Liquid Crystal Display).

If the scheme is adopted, the testing time is too long, and the OLED display screen emits light, so that the screen burning risk is increased. Moreover, the OLED display screen is provided with a plurality of functional layers, and a plurality of lighttight functional elements are distributed on the functional layers. These functional elements that are opaque will block a portion of the light, resulting in a reduction in the accuracy of the test.

To above-mentioned problem, this disclosure provides a rhythm of heart determine module, can be used for the terminal to accomplish the function that detects the rhythm of the heart. Fig. 3 is a schematic structural diagram illustrating a heart rate detecting assembly according to an exemplary embodiment, and as shown in fig. 3, the heart rate detecting assembly 10 of the present disclosure includes a light-transmissive cover plate 600, a substrate 100, a first photosensitive chip 301, an encapsulation layer 500, and a light-emitting device 200. The heart rate detection assembly 10 of the present disclosure may be disposed in a non-display area of a terminal.

Fig. 4 is a schematic diagram illustrating a cross-sectional structure of a heart rate detecting assembly according to an exemplary embodiment, and fig. 5 is a schematic diagram illustrating a path of light emitted by a heart rate detecting assembly according to an exemplary embodiment. As shown in fig. 4 and 5, the light emitting device 200 is disposed on the first side 101 of the substrate 100 and is used for emitting a first light 201 to a human body to be measured. Wherein, the first side 101 is a side of the substrate 100 close to the light-transmissive cover plate 600.

As shown in fig. 4 and 5, the first photosensitive chip 301 is disposed on the first side 101 of the substrate 100 and is configured to receive a first signal formed by reflecting a first light 201 by a human body to be measured. The first signal is used for detecting and obtaining the heart rate of the human body to be detected.

As shown in fig. 5, in the present disclosure, the light emitting device 200 emits a first light 201, the first light 201 illuminates the capillary layer of the finger, and the first light 201 is reflected and projected to be transmitted to the inside of the first photosensitive chip 301. In the process that the first light 201 enters the blood vessel from the finger tip of the finger, due to the absorption and attenuation effects of the skin, muscle and blood at the finger tip, when the first light 201 reflected by the human body to be detected enters the first photosensitive chip 301, the light intensity detected by the first photosensitive chip 301 is weakened.

The absorption of light by the skin musculature remains constant throughout the blood circulation, while the blood volume within the skin shows pulsatile changes under the influence of the heart. For example, when the heart contracts, the peripheral blood volume increases, the light absorption amount is also maximized, and the light intensity detected by the first photosensitive chip 301 is minimized. And at diastole, the intensity of light detected by the first photo-sensing chip 301 is maximum.

The first photosensitive chip 301 converts the detected light intensity into a first signal, which is sent to a signal acquisition and analysis module of the heart rate detection assembly 10, for example, which may be sent to a receiver. The receiver can convert the change signal of the light intensity into an electric signal through comparison calculation, and then the heart rate can be measured.

This openly through such design, can accomplish the function that detects human rhythm of heart that awaits measuring. With this heart rate detection subassembly 10 of disclosure setting in the non-display area region of terminal, can make the terminal have the function of detecting human rhythm of the heart to, can not influence the implementation of other parts of terminal and function.

Fig. 6 is a schematic structural diagram of a terminal provided with a heart rate detection component according to an exemplary embodiment, and as shown in fig. 6, the heart rate detection component 10 of the present disclosure may be applied to various terminals 20, for example, electronic devices such as a mobile phone, a tablet, or a smart wearable device.

In the present disclosure, the heart rate detecting assembly 10 is disposed in a non-display area of the terminal 20, for example, may be disposed at a side of the terminal 20 as shown in fig. 6. The present disclosure is not limited thereto, and may be a non-display area of the display surface of the terminal 20, or may be disposed on the rear surface of the terminal 20. The specific location may be adapted according to the overall design of the terminal 20.

In the embodiment of the present disclosure, the light emitting device 200 is further configured to emit a second light to the human body to be measured. The first photosensitive chip 301 may be configured to receive a second signal formed by reflecting a second light by the human body to be detected, and the second signal is configured to detect a texture of the human body to be detected.

In the embodiment of the present disclosure, the heart rate detecting assembly 10 may be configured to detect the heart rate of the human body to be detected, and also detect the fingerprint of the human body to be detected. The light emitting device 200 emits a second light ray, which is reflected or refracted when encountering a fingerprint of a human body.

Moreover, because the fingerprint lines on the finger receiving surface are uneven, the strength of the reflected or refracted second light rays is different. According to the differences, after the second light reflected by the human body to be detected enters the first photosensitive chip 301, the first photosensitive chip 301 converts the light with different intensities into a second signal, and then the fingerprint pattern of the human body to be detected can be obtained.

Since the intensity of the first light 201 needs to be sufficient to display the color of the blood vessels at the finger tip, and the second light only needs to be irradiated to the surface of the finger tip, the intensity of the second light may be lower than that of the first light 201.

During the use process, the light emitting device 200 can emit light rays with different light intensities according to different instructions, and the light rays can be the first light rays 201 or the second light rays, and can also be light rays for other purposes. The first photosensitive chip 301 may be an integrated chip having both heart rate detection and fingerprint detection functions.

In the embodiment of the present disclosure, the first photosensitive chip 301 integrating two functions of heart rate detection and fingerprint detection is adopted, which is not only beneficial to saving the installation space, but also can save the cost and the manufacturing process.

In the embodiment of the disclosure, two kinds of chips can be respectively set to be applied to heart rate detection and fingerprint detection. For example, a first photo-sensitive chip 301 is provided for heart rate detection and a second photo-sensitive chip 302 is provided on the first side 101 of the substrate 100 for fingerprint detection.

Fig. 7 is a schematic diagram illustrating a path of light rays emitted by a heart rate detecting assembly according to another exemplary embodiment, as shown in fig. 7, in the embodiment of the present disclosure, when a second photosensitive chip 302 is used for fingerprint detection, the light emitting device 200 is further used for emitting a third light ray 203 to a human body to be detected. And, the light intensity of the third light ray 203 is lower than that of the first light ray 201.

As shown in fig. 3 and 7, when the second photo sensor chip 302 is used for fingerprint detection, it may be disposed at the middle position of the first side 101 of the substrate 100, which is beneficial to receiving light reflected by the finger tip as large as possible, so as to form a fingerprint image as large as possible, and improve the accuracy of fingerprint identification.

And, set up second sensitization chip 302 in the intermediate position of base plate 100, when pointing the tip and being close the optional position on heart rate detection subassembly 10 surface, can guarantee to point the tip to have some all the time to reflect light to second sensitization chip 302, improve the sensitivity of heart rate detection subassembly 10 discernment fingerprint.

In the embodiment of the present disclosure, the second photosensitive chip 302 is used for receiving a third image formed by reflecting the third light 203 by the human body to be measured. And the third image is used for detecting the lines of the human body to be detected.

It should be noted that the light intensity of the third light 203 may be the same as the light intensity of the second light, or may be different from the light intensity of the second light, and the setting may be adaptive according to the purpose to be achieved.

In this disclosed embodiment, can also set up the response human distance that awaits measuring, then start the module of fingerprint detection function. As shown in fig. 3, the heart rate detection assembly 10 further includes: the distance sensing module 400. The distance sensing module 400 is disposed on the first side 101 of the substrate 100, and is used for sensing a distance between a human body to be detected and the heart rate detecting assembly 10. If the distance sensing module 400 senses that the distance from the human body to be measured to the terminal is smaller than the preset threshold value of the terminal, the trigger instruction starts the light emitting device 200 to emit light, for example, one of the first light 201, the second light and the third light 203.

In the embodiment of the present disclosure, the distance sensing module 400 can be used to determine the distance between the human body to be detected and the heart rate detection assembly 10. Can set up when distance response module 400 judges that the human distance apart from rhythm of the heart detecting element 10 that awaits measuring is less than certain threshold value, think that the human body that awaits measuring begins to use rhythm of the heart detecting element 10, can start illuminator emission light this moment, start rhythm of the heart and detect or fingerprint detection.

Such a configuration may increase the intelligent functions of the terminal 20, avoid increasing user operations, and optimize the user experience.

In the embodiment of the present disclosure, the distance sensing module 400 may be a capacitive sensing device, for example, a receiving terminal and a transmitting terminal may be disposed on the substrate 100 through copper, and configured to transmit and receive signals. The distance sensing module 400 may also be a resistive sensing device, an infrared sensing device, an ultrasonic sensing device, or other touch sensing methods.

In the embodiment of the present disclosure, taking the capacitive sensing device as an example, the distance sensing module 400 may be disposed in various forms. As shown, the distance sensing module 400 may be of a fully enclosed design. Fig. 8 is a schematic diagram illustrating a structure of a heart rate detecting assembly according to another exemplary embodiment, and as shown in fig. 8, the distance sensing module 400 may adopt a three-sided enclosure design. Fig. 9 is a schematic diagram illustrating a heart rate detecting assembly according to another exemplary embodiment, and as shown in fig. 9, the distance sensing module 400 may be designed to have a two-side design with a full-enclosure design.

It should be noted that the distance sensing module 400 of the present disclosure may be arranged in different manners according to different designs. The distance of the human body to be detected can be sensed within the coverage range of the heart rate detection assembly 10, for example, the distance sensing module 400 is arranged on a substrate with other shapes, and the distance sensing module 400 can be arranged in a circular, rectangular, triangular or other form.

In the embodiment of the present disclosure, the substrate 100, the first photosensitive chip 301, the second photosensitive chip 302, the distance sensing module 400, and the like are all electrical components, and are exposed on the surface of the substrate and easily damaged, and these electrical components may also be packaged. Fig. 10 is an exploded view of a heart rate detecting assembly according to an exemplary embodiment, and as shown in fig. 10, the heart rate detecting assembly 10 may further include an encapsulating layer 500 disposed between the transparent cover 600 and the substrate 100 for connecting the transparent cover 600 and the substrate 100.

In the embodiment of the present disclosure, the light emitting device 200, the first photosensitive chip 301 and the second photosensitive chip 302 are disposed inside the encapsulation layer 500, which helps to protect the electronic components from external force.

In the disclosed embodiment, the light transmittance of the encapsulation layer 500 is greater than or equal to 90%. Since the heart rate detecting assembly 10 needs to make the light of the light emitting device 200 emit to the human body to be detected, such an arrangement enables enough light to reach the human body to be detected through the packaging layer 500.

In the embodiment of the present disclosure, the encapsulation layer 500 may be made of a resin material, for example, a transparent resin material. After the circuit relationship arrangement on the substrate 100 is finished, the substrate 100, the light emitting device 200, the first photosensitive chip 301, the second photosensitive chip 302, and the like are packaged as a whole by a packaging process using a transparent resin material.

Fig. 11 is a schematic diagram illustrating a packaged structure of a heart rate detecting assembly according to an exemplary embodiment, and as shown in fig. 11, the packaged heart rate detecting assembly 10 is a whole, which can not only protect internal electronic components, but also facilitate installation.

In the disclosed embodiment, the encapsulation layer 500 may be any shape to accommodate being mounted to the terminal 20. Fig. 12 is a schematic diagram illustrating the shape of an encapsulation layer according to an exemplary embodiment, and as shown in fig. 12, the encapsulation layer 500 may be circular, square, rectangular, oval, and any other regular or irregular shape.

In the disclosed embodiment, when the heart rate detecting assembly 10 is mounted on the non-display area of the terminal 20, the heart rate detecting assembly 10 may further include a cover plate 600 for aesthetic reasons and for better matching with the mounting of the terminal 20. The light-transmissive cover 600 is disposed outside the encapsulation layer 500.

Also, in order to satisfy the requirement of the light emitting device 200 to emit light, the light transmittance of the light transmissive cover 600 is set to 90% or more. In some embodiments, glass, such as tempered glass, may be used as the light-transmissive cover plate 600, so that the light-transmissive cover plate 600 has certain rigidity and can protect the encapsulation layer 500 and the electronic components inside the encapsulation layer 500.

In the embodiment of the present disclosure, as shown in fig. 4, 5 and 7, a second side 102 is also disposed opposite to the first side 101 of the substrate 100, and the second side is a side of the substrate 100 away from the light-transmissive cover plate 600. The second side 102 is also provided with pads through which the heart rate detecting assembly 10 can be soldered to the electrical circuit of the terminal 20 connected to the power supply.

In some embodiments, the heart rate detection module 10 may be connected to a main board of the terminal 20 through a circuit, so that the heart rate detection module 10 may be connected to the main board of the terminal 20, so as to combine the functions of heart rate detection, fingerprint detection, etc. with other functions of the terminal 20.

Through the mainboard lug connection of pad and terminal 20, can utilize the control module control rhythm of the heart determine module 10 of mainboard, accomplish the function of relevant software, can not need to set up the controller for rhythm of the heart determine module 10 alone, not only can avoid occupying great space, can also save the component and save production technology, improve production efficiency.

Simultaneously, such connection, the setting that can also pass through software combines together heart rate detection and fingerprint detection function of heart rate detection subassembly 10 and other functions on the terminal, for example can combine together heart rate detection function and facial recognition function, promotes the biological identification function at terminal.

In the embodiment of the present disclosure, the heart rate detecting assembly 10 may be mounted on a side surface of the terminal 20, for example, may be mounted on a middle frame of the terminal 20. Fig. 13 is a schematic structural diagram of a middle frame mounted with a heart rate detecting assembly according to an exemplary embodiment, and as shown in fig. 13, the heart rate detecting assembly 10 further includes a supporting member 700, and one end of the supporting member 700 is disposed on the second side 102 of the substrate 100.

The heart rate detection assembly 10 is mounted to the center frame 21 to facilitate ergonomic handling. That is, the user can easily place the finger on the heart rate detecting assembly 10 for detection while holding the terminal. Compared with a display screen installed on the terminal, the display screen can be prevented from occupying the area of the display screen when the display screen is installed on the middle frame.

It should be noted that, the disclosure is not limited thereto, and for some terminals with larger area, for example, when the user is not convenient to hold the terminal by hand, the heart rate detecting assembly 10 is disposed on the back of the terminal, which is more convenient to use.

Based on the same inventive concept, the present disclosure also provides a terminal 20, including the heart rate detection assembly 10 as any one of the previous embodiments, the heart rate detection assembly being disposed in a non-display area of the terminal. The heart rate detecting assembly 10 may be configured to be mounted to the terminal 20 for operation, and there is a process of mounting the heart rate detecting assembly 10 in a manufacturing process of the terminal 20. The supporting member 700 is provided on the heart rate detecting assembly 10 to facilitate the installation of the heart rate detecting assembly 10 in the manufacturing process of the terminal 20.

In the embodiment of the present disclosure, a groove 27 is formed on the middle frame 21 of the terminal 20, and the other end of the supporting member 700 is disposed inside the groove 27 to fix the heart rate detecting assembly 10. The terminal 20 comprises a stop member 23, the stop member 23 being arranged inside the recess 27 for securing the support member to the terminal.

In the disclosed embodiment, the position limiting member 23 includes a first end 231 and a second end 232 that are oppositely disposed. The supporting member 700 is provided with a recess 701, the first end 231 of the limiting member 23 extends into the recess 701, and the supporting member 700 and the limiting member 23 are combined in a snap-fit manner through the recess 701 of the supporting member 700 and the limiting member 23.

In the present disclosure, the support member 700 may be composed of metal, and may be, for example, steel or stainless steel. The stop member 23 may be formed of metal, for example, copper.

In the disclosed embodiment, the second end 232 of the position limiting member 23 is disposed opposite the first end 231, and the second end 232 of the position limiting member 23 is fixed to the terminal 20, for example, by the fixing member 24. The fixing member 24 may be a screw.

As shown in fig. 13, a recess 701 may be provided at a plurality of edges of the support member 700, and a stopper member 23 may be provided at a position corresponding to the recess 701 on the terminal 20. That is, the terminal 20 of the present disclosure may include a plurality of recesses 701 and a plurality of stopper members 23, and the recesses 701 and the stopper members 23 correspond one-to-one and are fitted to each other.

In the presently disclosed embodiment, the heart rate detecting assembly 10 further comprises an encapsulation layer 500, and the encapsulation layer 500 may be arranged to fill the opening of the recess 27. When installing heart rate detection assembly 10 in the center 21 of terminal 20, for pleasing to the eye and avoid destroying the intensity of center 21, heart rate detection assembly 10 after the encapsulation is flush with the surface of center 21 to heart rate detection assembly 10 after the encapsulation just can fill up the opening of recess 27.

This arrangement allows no gap to be seen from the outside of the terminal 20, without affecting the aesthetic appearance of the terminal 20. And the heart rate detection assembly 10 is used for filling the opening of the groove 27, so that a certain supporting effect can be provided for the opening and the groove on the middle frame 21, and the rigidity of the middle frame 21 can be maintained.

In the embodiment of the present disclosure, the cross section of the supporting member 700 may be set to be larger than that of the opening, and the heart rate detecting assembly 10 may be further fixed to the terminal 20.

Generally, the thickness and size of the electronic element such as the substrate 100 are constant, and the size and thickness of the encapsulating layer 500 and the light-transmitting cover 600 may be changed to meet these settings.

In the embodiment of the present disclosure, the thickness of the substrate 100 may be equal to or greater than 0.1mm, the thickness of the first photosensitive chip 301 may be equal to or less than 0.2mm, and the thickness of the light-transmitting cover plate 600 may be equal to or greater than 0.1 mm. In particular implementations, varying the size of the encapsulation layer 500, the light transmissive cover 600, etc. may be utilized so that the heart rate detection assembly 10 may be mounted at different locations on the terminal 20 or applied to different terminals.

In the embodiment of the present disclosure, a plurality of components are disposed on the middle frame 21, and the heart rate detecting assembly 10 may also be configured as other components of the terminal 20. Fig. 14 is a schematic structural diagram of a middle frame mounted with a heart rate detection assembly according to another exemplary embodiment, and as shown in fig. 14, the heart rate detection assembly 10 may be configured as a power key of the terminal 20.

In the embodiment of the present disclosure, as shown in fig. 14, a recess is provided in the groove 27, so that the stopper 23 can be locked in the groove 27. The support member 700 is fixed to the stopper member 23, and the stopper member 23 has elasticity. After the supporting member 700 is pressed, the supporting member 700 can be restored due to the elasticity of the position limiting member 23, and the function of the power button is completed.

In the disclosed embodiment, when the heart rate detecting assembly 10 is configured as a power key of the terminal 20, the bottom of the groove 27 is provided with a power switch 26. The surface of the supporting member 700 facing the bottom of the recess 27 is provided with a conductive member 25, and the heart rate detecting unit 10 is in contact with the power switch 26 through the conductive member 25.

Through above-mentioned embodiment, this disclosed terminal can still increase functions such as rhythm of the heart detection, fingerprint detection when not influencing other functions to can set up the non-display area at the terminal with the determine module, avoid causing the interference to the display function at terminal.

Based on the same inventive concept, the present disclosure also provides a method of detecting a heart rate, which is applied to the heart rate detection assembly as any one of the preceding embodiments. Fig. 15 is a flowchart illustrating a method of detecting a heart rate according to an exemplary embodiment, and as shown in fig. 15, the method of detecting a heart rate of the present disclosure includes the following steps:

s11: responding to a first trigger instruction, and emitting first light rays through a light-emitting device;

s12: receiving a first signal formed by reflecting a first light ray by a human body to be detected through a first photosensitive chip;

s13: and detecting to obtain the heart rate of the human body to be detected based on the first signal.

In the embodiment of the disclosure, a first trigger instruction is generated in response to a user operation instruction and/or in response to a distance detected by a touch sensing module of a heart rate detection assembly being smaller than a threshold value. Namely, the first trigger instruction of the present disclosure, may be issued by an operation autonomously selected by the user on the terminal. In some embodiments, when the distance of the human body to be detected is smaller than the preset distance of the terminal, the heart rate detection component sends a first trigger instruction.

In other possible embodiments, the first trigger instruction may further include two instructions, that is, the first trigger instruction needs to satisfy the user operation, and the touch sensing module detects two signals that the distance of the human body to be detected is smaller than the preset distance of the terminal.

For example, when the user operates, the receiving module of the heart rate detection assembly receives a first instruction, and when the touch sensing module detects that the distance of the human body to be detected is smaller than the preset distance of the terminal, the receiving module of the heart rate detection assembly receives a second instruction. Can set for first instruction on the mainboard at terminal, only when heart rate detection subassembly's receiving module received first instruction and second instruction, heart rate detection subassembly could send first trigger instruction, and control illuminator sends first light.

Fig. 16 is a flowchart illustrating a method of detecting a heart rate according to another exemplary embodiment, and as shown in fig. 16, in an embodiment of the present disclosure, the method of detecting a heart rate may further include the following steps:

s21: responding to a second trigger instruction, and emitting second light rays through the light-emitting device;

s22: receiving a second signal formed by reflecting a second light by a human body to be detected through a first photosensitive chip;

s23: and identifying to obtain the fingerprint of the human body to be detected based on the second signal.

In this disclosed embodiment, when first sensitization chip is for having the integrated chip that detects heart rate and detect two kinds of functions of fingerprint, first sensitization chip can receive the second signal, discerns the human fingerprint that awaits measuring.

Fig. 17 is a flowchart illustrating a method of detecting heart rate according to another exemplary embodiment. As shown in fig. 17, when the heart rate detecting assembly has the second photosensitive chip for detecting fingerprints therein, the method for detecting the heart rate may further include the steps of:

s31: responding to a third trigger instruction, and emitting third light rays through the light-emitting device;

s32: receiving a third signal formed by reflecting a third light ray by the human body to be detected through a second photosensitive chip;

s33: and identifying to obtain the fingerprint of the human body to be detected based on the third signal.

Through the embodiment, the heart rate of the human body to be detected can be obtained and the fingerprint of the human body to be detected can be obtained by identifying the light intensity reflected by the human body to be detected. The method is applied to the terminal equipment, and the use function and the use scene of the terminal equipment can be increased.

It is understood that, in order to implement the above functions, the heart rate detecting component provided in the embodiments of the present disclosure includes a hardware structure and/or a software module for performing each function. The disclosed embodiments can be implemented in hardware or a combination of hardware and computer software, in combination with the exemplary elements and algorithm steps disclosed in the disclosed embodiments. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the subject matter of the embodiments of the present disclosure.

It is understood that "a plurality" in this disclosure means two or more, and other words are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.

It will be further understood that, unless otherwise specified, "connected" includes direct connections between the two without the presence of other elements, as well as indirect connections between the two with the presence of other elements.

It will be further appreciated that while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the concepts disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A heart rate detection assembly, comprising:

a light-transmitting cover plate;

the surface of the substrate, which is close to the light-transmitting cover plate, is provided with a light-emitting device and a first photosensitive chip;

the light-emitting device is used for emitting first light to a human body to be detected above the light-transmitting cover plate;

the first photosensitive chip is used for receiving a first signal formed by reflecting the first light by the human body to be detected, wherein the first signal is used for detecting and obtaining the heart rate of the human body to be detected;

and the packaging layer is arranged between the light-transmitting cover plate and the substrate and is used for connecting the light-transmitting cover plate and the substrate.

2. Heart rate detection assembly according to claim 1,

the light-emitting device is also used for emitting second light rays to the human body to be detected, wherein the light intensity of the second light rays is lower than that of the first light rays;

the first photosensitive chip is further used for receiving a second signal formed by the reflection of the human body to be detected and the second light, wherein the second signal is used for detecting the lines of the human body to be detected.

3. Heart rate detection assembly according to claim 1,

the light-emitting device is also used for emitting third light rays to the human body to be detected, wherein the light intensity of the third light rays is lower than that of the first light rays;

the heart rate detection assembly further comprises: the second sensitization chip set up in the base plate, just the second sensitization chip is used for receiving the warp the human reflection of awaiting measuring the third signal that third light formed, wherein, the third signal is used for detecting the human line of awaiting measuring.

4. Heart rate detection assembly according to claim 1,

the heart rate detection assembly further comprises: the distance sensing module is arranged on the substrate and used for sensing the distance between the human body to be detected and the heart rate detection assembly, and if the sensed distance is smaller than a threshold value, a trigger instruction is triggered to start the light-emitting device.

5. Heart rate detection assembly according to claim 1,

the light transmittance of the packaging layer is greater than or equal to 90%; and/or

The light transmittance of the light-transmitting cover plate is greater than or equal to 90%.

6. Heart rate detection assembly according to claim 1,

the encapsulation layer is made of a resin material.

7. Heart rate detection assembly according to claim 1,

and a bonding pad is arranged on one surface of the substrate, which is far away from the light-transmitting cover plate.

8. Heart rate detection assembly according to claim 1,

the heart rate detection assembly further comprises a support member;

the supporting component is arranged on one surface of the substrate, which is far away from the light-transmitting cover plate.

9. A terminal, characterized in that it comprises a heart rate detection assembly according to any one of claims 1 to 8.

10. The terminal of claim 9, wherein the heart rate detection component is disposed in a non-display area of the terminal.

11. The terminal of claim 10,

the heart rate detection assembly further comprises a supporting component, and one end of the supporting component is arranged on one surface of the substrate, which is far away from the light-transmitting cover plate;

the terminal is provided with a groove, and the other end of the supporting component is arranged in the groove.

12. The terminal of claim 11,

the terminal comprises a limiting part, wherein the limiting part is arranged in the groove and is used for fixing the supporting part on the terminal.

13. The terminal of claim 11,

the packaging layer is arranged to fill the opening of the groove.

14. The terminal of claim 13,

the maximum cross section of the support member is larger than the cross section at the opening.

15. The terminal of claim 12,

the limiting part is buckled in the groove in a clamping mode and has elasticity;

the heart rate detection assembly is configured as a power key of the terminal, and a power switch is arranged at the bottom of the groove;

and one surface of the supporting component facing the bottom of the groove is provided with a conductive component, and the heart rate detection component is in contact with the power switch through the conductive component.