CN210631212U - Heart rate module and electronic equipment for collecting heart rate - Google Patents
Heart rate module and electronic equipment for collecting heart rate Download PDFInfo
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- CN210631212U CN210631212U CN201920585911.3U CN201920585911U CN210631212U CN 210631212 U CN210631212 U CN 210631212U CN 201920585911 U CN201920585911 U CN 201920585911U CN 210631212 U CN210631212 U CN 210631212U
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Abstract
The utility model discloses a rhythm of heart module and gather electronic equipment of rhythm of the heart. The heart rate module comprises a substrate, and a first light wave transmitting unit, a second light wave transmitting unit, a first optical sensor chip and a second optical sensor chip which are arranged on the substrate; the substrate is also provided with an isolation grating wall for isolating the first light wave emission unit, the second light wave emission unit, the first optical sensor chip and the second optical sensor chip; the isolation grating wall and the substrate respectively enclose a first accommodating cavity for accommodating the first light wave emitting unit, a second accommodating cavity for accommodating the second light wave emitting unit, a third accommodating cavity for accommodating the first optical sensor chip and a fourth accommodating cavity for accommodating the second optical sensor chip; the first cavity of acceping and the second cavity of acceping all have the draft all around, and accept the cavity and the second is acceptd the inner wall surface in cavity and is provided with reflection of light coating on first inner wall surface of accepting the cavity. The utility model discloses a technological effect is for enabling the light output volume increase of light wave emission unit.
Description
Technical Field
The utility model relates to an optical sensor field, more specifically, the utility model relates to an electronic equipment of rhythm of the heart module and collection rhythm of the heart.
Background
Nowadays, cardiovascular and cerebrovascular diseases such as hypertension, coronary heart disease and the like gradually become common diseases and frequently encountered diseases in clinical medicine based on various factors such as working pressure and unreasonable dietary structure. Moreover, cardiovascular and cerebrovascular diseases are no longer present only in the middle-aged and elderly people, but gradually tend to develop towards the young age, and have attracted general attention in all societies. In fact, most of cardiovascular and cerebrovascular diseases belong to chronic sudden diseases, and at present, only control can be carried out but not radical treatment can be carried out, and patients need to go to hospitals regularly to receive examinations and take related medicines for a long time. However, even this does not completely prevent the occurrence of a burst condition. In order to avoid the occurrence of sudden situations as much as possible, it is necessary to monitor the heart rate variation, blood pressure and other parameters of the patient in real time so as to find out problems in time, and thus corresponding treatment measures can be quickly taken to avoid the sudden occurrence of dangerous situations.
In recent years, with the increasing living standard of people, many people pay attention to physical exercise to keep the health of people through exercise and prevent diseases. However, during exercise, the amount of exercise needs to be reasonably controlled, i.e., excessive exercise cannot be performed, or physical damage can be caused. For this situation, heart rate detection devices are commercially available, which detect the heart rate and thereby determine a suitable exercise program. Wherein, intelligence bracelet, intelligent wrist-watch all belong to present comparatively common portable rhythm of the heart check out test set, because of it has small in size, convenient to carry to and characteristics such as can normal use have received consumer's general recognition in the motion, can real-time detection user's rhythm of the heart situation of change after wearing, use unusual convenience.
However, in the prior art, the heart rate detection device, whether being a separate scheme or an integrated module scheme, has a problem of margin loss in terms of the light intensity of the LED. Specifically, the method comprises the following steps: in the existing heart rate sensor, light emitted by the LED is scattered all around, and the light scattered to the obstacle is absorbed by the obstacle and consumed, so that the light incident to the skin or blood of a human body for detection is reduced, which affects the accuracy of final detection. Therefore, it is very necessary to reasonably adjust the internal structure and the light path of the existing heart rate module so as to optimize the light emitting intensity of the LED.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a new technical scheme of rhythm of the heart module.
According to an aspect of the present invention, a heart rate module is provided, which includes a substrate, and a first light wave emitting unit, a second light wave emitting unit, a first optical sensor chip, and a second optical sensor chip disposed on the substrate; the substrate is also provided with an isolation grating wall for isolating the first light wave emission unit, the second light wave emission unit, the first optical sensor chip and the second optical sensor chip;
the isolation grating wall and the substrate respectively enclose a first accommodating cavity for accommodating the first light wave emitting unit, a second accommodating cavity for accommodating the second light wave emitting unit, a third accommodating cavity for accommodating the first optical sensor chip and a fourth accommodating cavity for accommodating the second optical sensor chip; the first cavity and the second cavity are respectively provided with a pattern draft angle on the inner wall at the periphery, and the non-conductive reflective coating is wholly or partially arranged on the inner wall surfaces of the first cavity and the second cavity.
Optionally, the reflective coating adopts Ti305Materials or SiO2Materials or non-conductive high aluminum reflective films.
Optionally, the thickness of the reflective coating is not more than 1 μm.
Optionally, the draft angle is greater than or equal to 45 degrees.
Optionally, the distance between the first optical sensor chip and the first light wave emitting unit is 6-10 mm;
the distance between the second optical sensor chip and the second light wave emission unit is 2.3-3.2 mm.
Optionally, the distance between the first optical sensor chip and the first light wave emitting unit is 9 mm; the second light wave emission unit and the second optical sensor chip are arranged between the first optical sensor chip and the first light wave emission unit, the second light wave emission unit is close to the first optical sensor chip, the second optical sensor chip is close to the first light wave emission unit, and the distance between the second optical sensor chip and the second light wave emission unit is 2.5 mm.
Optionally, the first light wave emitting unit includes two red light LED chips and one infrared light LED chip, where the two red light LED chips and the one infrared light LED chip are distributed on the same straight line, and the infrared light LED chip is located between the two red light LED chips.
Optionally, the second light wave emitting unit includes three green LED chips, and the three green LED chips are distributed on the same straight line.
Optionally, a light-transmitting window through which the first accommodating cavity, the second accommodating cavity, the third accommodating cavity and the fourth accommodating cavity are communicated with the outside is further arranged on the isolation grating wall.
Optionally, the heart rate module further includes an analog front end and a power management unit disposed on the substrate; and the first optical sensor chip and the second optical sensor chip are respectively attached to the power management unit and the analog front end.
According to the utility model discloses a another aspect provides an electronic equipment of collection rhythm of heart, include as above-mentioned any one the rhythm of the heart module.
The embodiment of the utility model provides a rhythm of the heart module, with the encapsulation that each part is reasonable together, can reduce each part and occupy the space of complete machine, reduced the volume of rhythm of the heart module, realized the miniaturation of rhythm of the heart module promptly. Moreover, through reasonable arrangement of the structure in the module and adjustment of the light path, the phenomenon of light scattering of the LED can be effectively avoided, namely the light of the LED can be concentrated in a large amount, a large amount of light can be emitted to the skin or blood of a human body, and the detection accuracy is improved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a heart rate sensor provided by an embodiment of the present invention.
Description of reference numerals:
the LED light source comprises a 1-red light LED chip, a 2-infrared light LED chip, a 3-analog front end, a 4-power management unit, a 5-green light LED chip, a 6-isolation grating wall, a 7-first optical sensor chip, a 8-second optical sensor chip and a 9-reflective coating.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1, an embodiment of the present invention provides a heart rate module, which includes a substrate (not shown in fig. 1) and a first light wave emitting unit, a second light wave emitting unit, a first optical sensor chip 7, and a second optical sensor chip 8 disposed on the substrate. The substrate may be a circuit board known to those skilled in the art, and a circuit layout of the heart rate module may be preset in the circuit board. The first optical sensor chip 7 and the second optical sensor chip 8 may employ photodiodes PD well known to those skilled in the art, and may be used to convert optical signals into electrical signals, which is not specifically described herein.
Referring to fig. 1, the utility model discloses a first light wave emission unit includes two ruddiness LED chip 1 and an infrared light LED chip 2, and two ruddiness LED chip 1 and an infrared light LED chip 2 distribute on same straight line jointly, and infrared light LED chip 2 is located between two ruddiness LED chip 1. That is, two red LED chips 1 and one infrared LED chip 2 are arranged in a long stripe shape on the substrate. The first light wave emitting unit is configured to emit red light waves (two red LED chips 1) and infrared light waves (one infrared LED chip 2). The utility model discloses a red light wave and infrared light wave that first light wave transmitting element launches can be used to test oxyhemoglobin saturation data and rhythm of the heart data etc.. The two red LED chips 1 and the infrared LED chip 2 may be mounted on the substrate in a manner known in the art, for example, may be fixedly disposed on the substrate in a mounting manner. And, it is different with the single ruddiness LED chip of traditional adoption, the utility model discloses in adopted two ruddiness LED chips, not only can make the ruddiness intensity that sends high, can also effectual increase detection range. In fact, when a single red light LED chip is used, the detection range is relatively small, especially when the heart rate module is in motion, the heart rate module is prone to shift, and at this time, the phenomenon that no red light wave feedback or little red light wave feedback amount occurs may occur, and the accuracy of the detection result is finally affected.
Referring to fig. 1, the second light wave emitting unit of the present invention includes three green LED chips 5, and the three green LED chips 5 are distributed on the same straight line. The second light wave emission unit is configured to emit green light waves. The utility model discloses a green light wave that second light wave emission unit launches also can be used to test the rhythm of the heart. Specifically, the green light wave emitted by the green light LED chip 5 can cooperate with the second light wave emitting unit to measure the change of density when blood flows in a blood vessel, and heart rate data can be tested after further calculation. The three green LED chips 5 may be mounted on the substrate in a manner known in the art, for example, may be fixedly disposed on the substrate by mounting. Different with traditional single green glow LED chip, the utility model discloses in adopted three green glow LED chip 5, can make the green glow intensity reinforcing of launching, the green glow signal that reflects back is also more like this from blood. The utility model discloses in, three green glow LED chip is rectangular form and arranges, can effectual increase detection range, even when causing the rhythm of the heart module skew because of reasons such as motion, also can have more green glow signal feedback, can effectively avoid the signal that single green glow LED chip caused to detect the condition emergence not.
The first optical sensor chip 7 of the present invention is configured to receive red and infrared light waves reflected back from the skin or blood. The second optical sensor chip 8 of the present invention is configured to receive the green light waves reflected back from the skin or blood. Also, the first optical sensor chip 7 and the second optical sensor chip 8 are also configured to be able to receive different light waves at the same time. Specifically, the method comprises the following steps: when the light emitted from the first light wave emitting unit and the light emitted from the second light wave emitting unit are emitted to the skin or blood of the human body, the first optical sensor chip 7 and the second optical sensor chip 8 respectively receive the light signals reflected back through the skin or the blood, and the first optical sensor chip 7 and the second optical sensor chip 8 can emit different control signals according to the intensity of the light. The first optical sensor chip 7 and the second optical sensor chip 8 may be mounted on the substrate in a manner well known in the art, and may be fixedly disposed on the substrate in a mounting manner, for example. And compare with traditional rhythm of the heart module or rhythm of the heart sensor, the utility model discloses a rhythm of the heart module has adopted two optical sensor chips, can increase the detection range to reflection light wave receipt, can also receive red light wave/infrared light wave and the green light wave that reflects back from skin or blood respectively, tests oxyhemoglobin saturation data and rhythm of the heart data etc. respectively, realizes real-time detection.
The utility model discloses a rhythm of heart module still is provided with the isolation grating wall 6 that is used for keeping apart first light wave transmitting unit, second light wave transmitting unit, first optical sensor chip 7, second optical sensor chip 8 on the base plate. The isolation grating wall 6 is made of a light-tight material and is used for isolating the first light wave emitting unit, the second light wave emitting unit, the first optical sensor chip 7 and the second optical sensor chip 8 from light. The light emitted by the first light wave emitting unit can be effectively prevented from being directly received by the first optical sensor chip 7, and the light emitted by the second light wave emitting unit is directly received by the second optical sensor chip 8, so that mutual interference between the first light wave emitting unit and the first optical sensor chip 7 and between the second light wave emitting unit and the second optical sensor chip 8 can be avoided, and the testing accuracy is facilitated.
And, the utility model discloses an keep apart grating wall 6 and base plate combination have enclosed into the first chamber of acceping that holds first light wave emission unit respectively, and the chamber is acceptd to the second that holds second light wave emission unit, and the chamber is acceptd to the third that holds first optical sensor chip 7 to and the chamber is acceptd to the fourth that holds second optical sensor chip 8. And, a light-transmitting window for communicating the first accommodating cavity, the second accommodating cavity, the third accommodating cavity, the fourth accommodating cavity and the outside is further arranged on the isolation grating wall 6. At this time, the light waves emitted from the first and second light wave emitting units may be emitted to the outside through the light-transmitting windows on the isolation grating wall 6 to be received by the skin or blood of the human body, and the first and second optical sensor chips 7 and 8 may receive the light waves reflected from the skin or blood, respectively, entering from the corresponding light-transmitting windows.
It should be noted that, the isolation grating wall 6 and the substrate may be bonded together, and of course, the isolation grating wall 6 and the substrate may also be bonded together in an ultrasonic welding manner, which is not limited by the present invention.
Referring to fig. 1, the inner walls of the first accommodating cavity and the second accommodating cavity have draft angles, and the inner wall surfaces of the first accommodating cavity and the second accommodating cavity are wholly or partially provided with non-conductive reflective coating films 9. The area of the reflective coating 9 can be flexibly adjusted according to the actual situation, and the utility model does not limit the area. The reflective coating 9 can make the first inner wall of acceping the chamber and the second is acceptd the chamber and is formed high bright reflection of light face (being the condensing surface), when first light wave emission unit and second light wave emission unit transmitted the light wave, can produce good spotlight effect. That is, a good light-condensing effect is obtained by changing the light path design. The utility model discloses in, through drawing die inclination and coating film technology, can make the light yield of first light wave emission unit and second light wave emission unit increase, can reduce the loss of light to enable more light and shine human skin or blood, be favorable to improving the accuracy of rhythm of the heart testing result.
Wherein, the reflective coating 9 is made of non-conductive reflective material, for example, Ti is selected as the reflective coating 9305Materials or SiO2A material. Of course, other materials known to those skilled in the art, such as non-conductive high aluminum reflective film, may be used for the reflective coating 9, which is not limited by the present invention.
The thickness of the reflection coating film 9 should be controlled to be not more than 1 μm, that is, the thickness of the reflection coating film 9 should be less than or equal to 1 μm. The thickness of the reflective coating film 9 is not too large, otherwise the combination firmness of the reflective coating film and the inner walls of the first accommodating cavity and the second accommodating cavity is affected, and the production cost is increased.
Wherein, the inner walls of the first accommodating cavity and the second accommodating cavity all have draft angles, and the draft angles can be controlled to be more than or equal to 45 degrees. The draft can be adjusted according to the condition of reality in a flexible way to obtain good spotlight effect, for example the draft can be 45, 50, 60, 65, 70, 75, 80 etc. can adjust according to actual conditions in a flexible way, the utility model discloses do not do the restriction to this. In addition, if the angle cannot reach 45 ° due to the size problem, the angle may be set without any special requirement.
In addition, the utility model discloses a can also fixed combination have first printing opacity colloid, second printing opacity colloid, third printing opacity colloid and fourth printing opacity colloid on the base plate. Specifically, the method comprises the following steps: can be with fixed the setting on the base plate of first light wave emission unit (two ruddiness LED chip 1 and an infrared LED chip 2) through first printing opacity colloid, can be with the fixed setting on the base plate of second light wave emission unit (three green glow LED chip 5) through second printing opacity colloid, can be with the fixed setting on the base plate of first optical sensor chip 7 through third printing opacity colloid, can be with the fixed setting on the base plate of second optical sensor chip 8 through fourth printing opacity colloid. The first light wave transmitting unit, the second light wave transmitting unit, the first optical sensor chip 7 and the second optical sensor chip 8 can be protected by the first light transmitting colloid, the second light transmitting colloid, the third light transmitting colloid and the fourth light transmitting colloid respectively, and functions of all parts cannot be influenced, such as light waves emitted outwards or reflected light waves are received, so that the test is completed. It should be noted that the first light-transmitting colloid, the second light-transmitting colloid, the third light-transmitting colloid, and the fourth light-transmitting colloid are respectively injected into the first accommodating cavity, the second accommodating cavity, the third accommodating cavity, and the fourth accommodating cavity through the corresponding light-transmitting windows, and finally, after curing, the first light-wave emitting unit, the second light-wave emitting unit, the first optical sensor chip 7, and the second optical sensor chip 8 can be fixedly disposed on the substrate.
Of course, the first light wave emitting unit, the second light wave emitting unit, the first optical sensor chip 7 and the second optical sensor chip 8 may also be directly fixed on the substrate, at this time, transparent glass may be respectively disposed on the transparent windows of the first accommodating cavity, the second accommodating cavity, the third accommodating cavity and the fourth accommodating cavity, and protection of the first light wave emitting unit, the second light wave emitting unit, the first optical sensor chip 7 and the second optical sensor chip 8 may also be achieved, but since the transparent glass has a certain thickness, the size of the whole heart rate module may be affected.
The utility model discloses a rhythm of heart module, it includes two optical sensor chips, first optical sensor chip 7 and second optical sensor chip 8 promptly, under the effectual module size condition, through the distance of adjusting first light wave emission unit and first optical sensor chip 7, and the distance of second light wave emission unit and second optical sensor chip 8, can make the better red light wave and the infrared light wave of following skin or blood reflection of receiving of first optical sensor chip 7, make the better green light wave of following skin or blood reflection of receiving of second optical sensor chip 8. Namely, by adjusting the positions of the two optical sensor chips, a better optical distance can be achieved, which is beneficial to realizing accurate detection.
Wherein, the distance between the first optical sensor chip 7 and the first light wave emitting unit should be controlled to be 6-10mm, and the receiving effect of the red light wave and the infrared light wave is best when approaching 9 mm. The distance between the second optical sensor chip 8 and the second light wave emitting unit should be controlled to be about 2.3mm-3.2mm, and the green light wave receiving effect is the best when the distance is 2.5 mm.
In a specific embodiment of the present invention, referring to fig. 1, on a substrate, the distance between the first optical sensor chip 7 and the first light wave emitting unit is controlled to be 9mm, and at this time, a certain empty space is provided between the first optical sensor chip 7 and the first light wave emitting unit, and the second light wave emitting unit and the second optical sensor chip 7 can be effectively disposed by utilizing the space of this portion in consideration of the size of the whole heart rate module. In order to prevent the light waves emitted by the first light wave emitting unit and the light waves emitted by the second light wave emitting unit from interfering with each other, the second light wave emitting unit may be disposed close to the first optical sensor chip 7, and the second optical sensor chip 8 may be disposed close to the first light wave emitting unit, so as to separate the first light wave emitting unit and the second light wave emitting unit, wherein the distance between the second optical sensor chip 8 and the second light wave emitting unit needs to be ensured to be 2.5 mm. By adopting the design, the distances between the green light waves and the red light waves/infrared light waves and the corresponding optical sensor chips can be adjusted under the condition of limited module size, so that a better optical distance is achieved, and a good detection result is finally realized.
In another embodiment of the present invention, on a substrate, the distance between the first optical sensor chip 7 and the first light wave emitting unit is 9mm (the distance between the first light wave emitting unit and the first light wave emitting unit optimally receives the red light wave and the infrared light wave reflected back), the second light wave emitting unit and the second optical sensor chip 8 are disposed between the first optical sensor chip 7 and the first light wave emitting unit, wherein the second light wave emitting unit is disposed near the first optical sensor chip 7, the second optical sensor chip 8 is disposed near the first light wave emitting unit, and the distance between the second optical sensor chip 8 and the second light wave emitting unit is 2.5mm, and the distance between the first optical sensor chip 7 and the second light wave emitting unit is also 2.5 mm. The design can enable the first optical sensor chip 7 to receive red light waves and infrared light waves reflected back from skin or blood and green light waves reflected back from skin or blood, and the second optical sensor chip 8 can receive green light waves reflected back from skin or blood, and the average value is obtained through multiple calculations, so that the accuracy of the detection result is improved.
It should be noted that, the positions of the first light wave emitting unit, the second light wave emitting unit, the first optical sensor chip 7 and the second optical sensor chip 8 on the substrate are not limited to the above two embodiments, and the light wave can be received according to the flexible adjustment of the size of the heart rate module, as long as the light wave can be received, which is not limited to this.
The heart rate module of the present invention, as shown in fig. 1, further includes an analog front end 3(AFE) and a power management unit 4(BOOST) disposed on the substrate. The analog front end 3 and the power management unit 4 are both mounted on the substrate and are electrically connected to the circuits in the substrate. The first optical sensor chip 7 and the second optical sensor chip 8 are respectively attached to the power management unit 4 and the analog front end 3.
Generally, the utility model discloses a heart rate module adopts the mode of pressing close to with human skin to measure, wherein, can control first light wave emission unit (two ruddiness LED chip 1 and an infrared light LED chip 2) through power management unit 4, second light wave emission unit (three green glow LED chip 5) is luminous, and the light directive human skin that sends by first light wave emission unit and second light wave emission unit, partly can be absorbed by skin soft tissue, another part reflects from skin or blood, respectively by first optical sensor chip 7, second optical sensor chip 8 receives. For example, the difference in oxygen content in blood may cause the difference in absorbance for red light and infrared light, so that there is a weak change in the reflected light, causing a change in the output current of the first optical sensor 7, which is converted by the Analog Front End (AFE)3 and then sent to a processor or other components for further processing, for example, by comparing the difference in intensity of the red light signal and the infrared light signal, the oxygen content in blood is calculated, i.e., a blood oxygen value is obtained; moreover, when the heart beats, blood flows in the skin, so that the blood content in the skin changes, and the heart rate can be calculated by calculating the relation between the change of the red light signal or the infrared light signal and the time. The change of blood content can also be measured by the cooperation of the green light LED chip 5 and the second optical sensor chip 8, and the heart rate data can also be tested by calculating the relation between the change of a green light signal and time.
The utility model discloses a rhythm of the heart module has reduced the complicated structural design of unnecessary, can adopt simple mode encapsulation with each part together, can reduce each part and occupy the space of complete machine, has reduced the volume of rhythm of the heart module, has realized the miniaturation of rhythm of the heart module promptly. And, through power management unit 4 rational distribution power supply, increased the stand-by time of battery in the heart rate module. Simultaneously, still solved the spotlight problem of rhythm of the heart module LED light-emitting, effectively overcome the defect among the prior art, help improving the accuracy of rhythm of the heart testing result.
On the other hand, the embodiment of the utility model provides a still provide an electronic equipment of collection rhythm of the heart, this electronic equipment includes any kind of rhythm of the heart module of the aforesaid.
Wherein, the utility model discloses an electronic equipment of collection rhythm of the heart can be electronic products such as intelligent bracelet, intelligent wrist-watch, smart mobile phone and portable medical equipment, the utility model discloses do not limit to this. The utility model discloses an electronic equipment of collection rhythm of the heart can be used to carry out the rhythm of the heart and detect, has the accurate advantage of testing result.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (11)
1. A heart rate module is characterized by comprising a substrate, a first light wave emitting unit, a second light wave emitting unit, a first optical sensor chip and a second optical sensor chip, wherein the first light wave emitting unit, the second light wave emitting unit, the first optical sensor chip and the second optical sensor chip are arranged on the substrate; the substrate is also provided with an isolation grating wall for isolating the first light wave emission unit, the second light wave emission unit, the first optical sensor chip and the second optical sensor chip;
the isolation grating wall and the substrate respectively enclose a first accommodating cavity for accommodating the first light wave emitting unit, a second accommodating cavity for accommodating the second light wave emitting unit, a third accommodating cavity for accommodating the first optical sensor chip and a fourth accommodating cavity for accommodating the second optical sensor chip; the first cavity and the second cavity are respectively provided with a pattern draft angle on the inner wall at the periphery, and the non-conductive reflective coating is wholly or partially arranged on the inner wall surfaces of the first cavity and the second cavity.
2. The heart rate module of claim 1, wherein the reflective coating is Ti305Materials or SiO2Material or material notAn electrically high aluminum reflective film.
3. The heart rate module of claim 1, wherein the thickness of the reflective coating is no greater than 1 μ ι η.
4. The heart rate module of claim 1, wherein the draft angle is greater than or equal to 45 °.
5. The heart rate module according to claim 1, wherein a distance between the first optical sensor chip and the first light wave emitting unit is 6-10 mm;
the distance between the second optical sensor chip and the second light wave emission unit is 2.3-3.2 mm.
6. The heart rate module of claim 1, wherein a distance between the first optical sensor chip and the first light wave emitting unit is 9 mm;
the second light wave emission unit and the second optical sensor chip are arranged between the first optical sensor chip and the first light wave emission unit, the second light wave emission unit is close to the first optical sensor chip, the second optical sensor chip is close to the first light wave emission unit, and the distance between the second optical sensor chip and the second light wave emission unit is 2.5 mm.
7. The heart rate module of claim 1, wherein the first light wave emitting unit comprises two red light LED chips and one infrared light LED chip, and the two red light LED chips and the one infrared light LED chip are distributed on the same straight line, and the infrared light LED chip is located between the two red light LED chips.
8. The heart rate module of claim 1, wherein the second light emitting unit comprises three green LED chips, and the three green LED chips are distributed on the same straight line.
9. The heart rate module of claim 1, wherein the isolation grating wall further comprises a light-transmitting window for communicating the first, second, third and fourth receiving cavities with the outside.
10. The heart rate module of claim 1, further comprising an analog front end and a power management unit disposed on the substrate;
and the first optical sensor chip and the second optical sensor chip are respectively attached to the power management unit and the analog front end.
11. An electronic device for capturing a heart rate, comprising a heart rate module according to any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920585911.3U CN210631212U (en) | 2019-04-26 | 2019-04-26 | Heart rate module and electronic equipment for collecting heart rate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920585911.3U CN210631212U (en) | 2019-04-26 | 2019-04-26 | Heart rate module and electronic equipment for collecting heart rate |
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| CN210631212U true CN210631212U (en) | 2020-05-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110200604A (en) * | 2019-04-26 | 2019-09-06 | 青岛歌尔智能传感器有限公司 | A kind of heart rate mould group and the electronic equipment for acquiring heart rate |
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2019
- 2019-04-26 CN CN201920585911.3U patent/CN210631212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110200604A (en) * | 2019-04-26 | 2019-09-06 | 青岛歌尔智能传感器有限公司 | A kind of heart rate mould group and the electronic equipment for acquiring heart rate |
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