CN209847168U - Intelligent wrist-wearing equipment with heart rate detection function - Google Patents

Intelligent wrist-wearing equipment with heart rate detection function Download PDF

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Publication number
CN209847168U
CN209847168U CN201920074962.XU CN201920074962U CN209847168U CN 209847168 U CN209847168 U CN 209847168U CN 201920074962 U CN201920074962 U CN 201920074962U CN 209847168 U CN209847168 U CN 209847168U
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heart rate
detection function
fresnel
worn device
rate detection
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CN201920074962.XU
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Chinese (zh)
Inventor
黎文军
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Huawei Technologies Co Ltd
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Goertek Techology Co Ltd
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Abstract

The utility model discloses an intelligent wrist-wearing device with heart rate detection function, which comprises a lower shell, a circuit board, a light emitting sensor and a light receiving sensor, wherein the light emitting sensor and the light receiving sensor are electrically connected with the circuit board; the second heart rate lens is provided with a second Fresnel line, and the light receiving sensor is arranged right opposite to the line central point of the second Fresnel line. Above-mentioned intelligence wrist equipment of wearing with rhythm of heart detection function through set up the fresnel pattern respectively on first heart rate lens and second heart rate lens, can reflect and refract the light of light and reflection of transmission, makes scattered light can effectively assemble, has improved signal strength, and detectivity is high, and rhythm of the heart monitoring accuracy is high.

Description

Intelligent wrist-wearing equipment with heart rate detection function
Technical Field
The utility model relates to an intelligence electronic equipment technical field especially relates to an intelligence wrist wears equipment with rhythm of heart detection function.
Background
Along with the improvement of people's standard of living, more and more people begin to regard healthy monitoring, and along with the arrival of intelligence wearing heat tide, wearing equipment on the present market is equipped with heart rate monitoring function mostly. One of the heart rate monitoring methods is a reflection type photoelectric method, wherein a light emitting end emits light, a light receiving end receives light reflected by body tissues, and the change of the volume of blood vessels during blood flow is induced through light reflection, so that the heart rate is measured. However, in the current wearing device, the light emitted by the light emitting end is not converged and collimated to directly hit the object to be detected, and because the light emitting angle of the light emitting end is large, only a small part of the light can hit the position to be detected, the intensity of the generated signal is weak, so that the detection sensitivity is low, and the reliability is poor.
SUMMERY OF THE UTILITY MODEL
Based on this, the to-be-solved technical problem of the utility model is to provide an intelligent wrist wearing apparatus with rhythm of the heart detection function that signal is strong, rhythm of the heart monitoring accuracy is high.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
an intelligent wrist-worn device with a heart rate detection function comprises a lower shell, a circuit board, a light emitting sensor and a light receiving sensor, wherein the light emitting sensor and the light receiving sensor are electrically connected with the circuit board; the second heart rate lens is provided with a second Fresnel line, and the light receiving sensor is arranged right opposite to the line central point of the second Fresnel line.
In one embodiment, the first fresnel patterns are composed of a plurality of toothed rings, the tooth pitch of the toothed rings gradually decreases from the middle outwards, and the tooth height of the toothed rings gradually increases from the middle outwards; the tooth crest angle gradually decreases from the middle to the outside.
In one embodiment, the first fresnel pattern has a pitch in the range of 0.128mm ~ 0.042.042 mm, a height in the range of 0.025mm ~ 0.042.042 mm, and an angle in the range of 34 ° ~ 78 °.
In one embodiment, the second fresnel patterns are composed of a plurality of toothed rings, the pitch of the toothed rings is uniform, the tooth height gradually increases from the middle outwards, and the tooth crest angle gradually decreases from the middle outwards.
In one embodiment, the pitch of the second fresnel patterns is 0.05mm, the height of the second fresnel patterns is 0.003mm ~ 0.03.03 mm, and the angle of the second fresnel patterns is 52 ° ~ 150 °.
In one embodiment, the center of the first fresnel pattern is located eccentrically near the second heart rate lens.
In one embodiment, the light emitting sensor, the light receiving sensor, the first heart rate lens and the second heart rate lens are respectively provided with two.
In one embodiment, the two light emitting sensors and the two light receiving sensors are arranged in a square manner, and the two light emitting sensors and the two light receiving sensors are respectively arranged in a diagonal manner; correspondingly, the two first heart rate lenses and the two second heart rate lenses are arranged in a four-way mode, and the two first heart rate lenses and the two second heart rate lenses are arranged diagonally respectively.
In one embodiment, the first and second rate lenses are integrally formed with the lower case by two-shot molding.
In one embodiment, a groove is disposed on the lower shell, and one side of each of the first and second rate lenses has a protrusion embedded in the groove of the lower shell.
Compared with the prior art, the utility model discloses an advantage is with positive effect:
above-mentioned intelligence wrist equipment of wearing with rhythm of heart detection function through set up the fresnel pattern respectively on first heart rate lens and second heart rate lens, can reflect and refract the light of light and reflection of transmission, makes scattered light can effectively assemble, has improved signal strength, and detectivity is high, and rhythm of the heart monitoring accuracy is high.
Drawings
Fig. 1 is a partial exploded view of the smart wrist-worn device with heart rate detection function of the present invention;
fig. 2 is a top view of the intelligent wrist-worn device with heart rate detection function of the present invention;
FIG. 3 is a cross-sectional view of the smart wrist-worn device with heart rate detection of the present invention;
fig. 4 is a schematic structural view of a first fresnel pattern in the intelligent wrist-worn device with a heart rate detection function of the present invention;
fig. 5 is a schematic structural view of a second fresnel pattern in the smart wrist-worn device with a heart rate detection function of the present invention;
fig. 6 is a top view of the first fresnel patterns and the second fresnel patterns in the smart wrist-worn device with heart rate detection function of the present invention;
FIG. 7 is a partial cross-sectional view of the shell of the smart wrist-worn device with heart rate detection function of the present invention connected to the first heart rate lens;
description of reference numerals:
a lower case 100; a circuit board 200; a light emitting sensor 300; a light receiving sensor 400; a first heart rate lens 500; a first Fresnel pattern 510; a second heart rate lens 600; a second Fresnel pattern 610; a projection 520.
Detailed Description
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings, but which can be embodied in many different forms and are defined and covered by the following claims.
Referring to fig. 1 to 3, the smart wrist-worn device with heart rate detection function in one embodiment of the present invention includes a lower case 100, a circuit board 200, a light emitting sensor 300 electrically connected to the circuit board 200, and a light receiving sensor 400, wherein the light emitting sensor 300 and the light receiving sensor 400 are respectively mounted on the circuit board 200 by an SMT patch. The circuit board 200 is a flexible circuit board 200 and is fixed to the lower case 100 by heat fusion or screws. The first and second heart rate lenses 500 and 600 are provided on the lower case 100. The inner side surface of the first heart rate lens 500 is provided with a first fresnel pattern 510, and the light emission sensor 300 is arranged right opposite to the pattern central point of the first fresnel pattern 510, that is, the light emitting chip of the light emission sensor 300 is right opposite to the pattern central point of the first fresnel pattern 510. The inner side surface of the second heart rate lens 600 is provided with a second fresnel pattern 610, and the light receiving sensor 400 is arranged opposite to the pattern center point of the second fresnel pattern 610. The light emitted by the light emitting sensor 300 passes through the first heart rate lens 500, and is converged on the object to be measured through the reflection and refraction of the first fresnel patterns 510; after being reflected by the object to be measured, the light passes through the second heart rate lens 600, and is received by the light receiving sensor 400 through the reflection and refraction effects of the second fresnel patterns 610. The light emitting sensor 300 and the light receiving sensor 400 are arranged opposite to the central point of the Fresnel patterns, so that the Fresnel patterns have better light band reflection and refraction effects on the light spectrum.
Foretell intelligence wrist equipment of wearing with rhythm of heart detection function through set up the fresnel pattern respectively on first heart rate lens 500 and second heart rate lens 600, can reflect and refract the light of light and reflection of transmission, makes scattered light can effectively assemble, has improved signal strength, and detectivity is high, and rhythm of the heart monitoring accuracy is high.
Specifically, as shown in fig. 4, the first fresnel pattern 510 is composed of a plurality of toothed rings, each having a right triangle-shaped tooth-shaped cross section, wherein the pitch L1 is gradually decreased from the middle to the outside, the pitch preferably ranges from 0.128mm ~ 0.042.042 mm, the height H1 is gradually increased from the middle to the outside, the height preferably ranges from 0.025mm ~ 0.042.042 mm, and the tip angle α is gradually decreased from the middle to the outside, the angle ranging from 34 ° ~ 78 °.
As shown in fig. 5, the second fresnel pattern 610 is composed of a plurality of toothed rings, the pitch L2 of which is uniform and 0.05mm, the height H2 of which is gradually increased from the middle outward and the height range of which is 0.003mm ~ 0.03mm, and the crest angle β of which is gradually decreased from the middle outward and the angle range of which is 52 ° ~ 150 °, the crest angle of which has rounded portions.
The utility model provides a tooth pitch, tooth height and angle in first fresnel line 510 of first heart rate lens 500 and the first fresnel line 510 of second heart rate lens 600 have strictly calculated, make lens better to the light band reflection of spectrum and refraction effect, have improved the accuracy of measuring the rhythm of the heart.
Further, as shown in fig. 6, the center point of the first fresnel pattern 510 is eccentrically disposed near the second telecentric lens, and the tooth-shaped circular rings of the second fresnel pattern 610 are concentrically disposed, so that the first telecentric lens 500 has better effects of reflecting and refracting the light band of the spectrum. In other embodiments, the first fresnel pattern 510 and the second fresnel pattern 610 may be arranged in a concentric configuration or an eccentric configuration.
In the present embodiment, it is preferable that the light emitting sensor 300, the light receiving sensor 400, the first heart rate lens 500, and the second heart rate lens 600 are provided in two, respectively. Two sets of detecting element can improve heart rate monitoring accuracy.
Further, the two light emitting sensors 300 and the two light receiving sensors 400 are arranged in four directions, and the two light emitting sensors 300 and the two light receiving sensors 400 are respectively arranged in diagonal lines. Correspondingly, the two first heart rate lenses 500 and the two second heart rate lenses 600 are arranged in four directions, and the two first heart rate lenses 500 and the two second heart rate lenses 600 are arranged diagonally respectively. Two sets of detection parts are crisscross to be set up, have further improved heart rate monitoring accuracy. It will be appreciated that in other embodiments, the detection components may be arranged in a plurality of groups as desired.
Further, as shown in fig. 7, each of the first and second heart rate lenses 500 and 600 is integrally molded with the lower case 100 by two-shot molding. Specifically, a groove is provided on the lower case, and one side of the first and second heart rate lenses 500 and 600 has a protrusion 520, respectively, and the protrusion 520 is embedded in the groove of the lower case. First and second rate lenses 500 and 600 are encased in lower shell 100 such that first and second rate lenses 500 and 600 are more tightly coupled to lower shell 100, either pushing outward or pushing inward, and neither first rate lens 500 nor second rate lens 600 will detach.
In this embodiment, the first and second heart rate lenses 500 and 600 are made of transparent optical PMMA resin, transparent PA, or other transparent materials.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An intelligent wrist-worn device with a heart rate detection function comprises a lower shell, a circuit board, a light emitting sensor and a light receiving sensor, wherein the light emitting sensor and the light receiving sensor are electrically connected with the circuit board; the second heart rate lens is provided with a second Fresnel line, and the light receiving sensor is arranged right opposite to the line central point of the second Fresnel line.
2. The smart wrist-worn device with heart rate detection function according to claim 1, wherein the first Fresnel line is composed of a plurality of toothed rings, the pitch of the toothed rings gradually decreases from the middle outwards, and the height of the toothed rings gradually increases from the middle outwards; the tooth crest angle gradually decreases from the middle to the outside.
3. The smart wrist-worn device with heart rate detection function according to claim 2, wherein the first fresnel patterns have a pitch range of 0.128mm ~ 0.042mm, a tooth height range of 0.025mm ~ 0.042mm, and an angle range of 34 ° ~ 78 °.
4. The smart wrist-worn device with heart rate detection function according to claim 2, wherein the second fresnel patterns are composed of a plurality of toothed rings, the pitch of the toothed rings is uniform, the tooth height gradually increases from the middle outwards, and the tooth crest angle gradually decreases from the middle outwards.
5. The smart wrist-worn device with heart rate detection function according to claim 4, wherein the second Fresnel patterns have a pitch of 0.05mm, a range of tooth heights of 0.003mm ~ 0.03.03 mm, and an angular range of 52 ° ~ 150 °.
6. The smart wrist-worn device with heart rate detection function according to claim 1, wherein the textured center point of the first fresnel pattern is eccentrically disposed near the second heart rate lens.
7. The smart wrist-worn device with heart rate detection function according to claim 1, wherein there are two light emitting sensors, two light receiving sensors, two first heart rate lenses and two second heart rate lenses.
8. The intelligent wrist-worn device with heart rate detection function according to claim 7, wherein the two light emitting sensors and the two light receiving sensors are arranged in a four-direction manner, and the two light emitting sensors and the two light receiving sensors are respectively arranged in a diagonal manner; correspondingly, the two first heart rate lenses and the two second heart rate lenses are arranged in a four-way mode, and the two first heart rate lenses and the two second heart rate lenses are arranged diagonally respectively.
9. The smart wrist-worn device with heart rate detection function according to any one of claims 1 to 8, wherein the first heart rate lens and the second heart rate lens are integrally molded with the lower case by two-shot molding.
10. The intelligent wrist-worn device with heart rate detection function according to claim 9, wherein a groove is provided on the lower shell, and one side of the first heart rate lens and one side of the second heart rate lens are respectively provided with a protruding part which is embedded in the groove of the lower shell.
CN201920074962.XU 2019-01-16 2019-01-16 Intelligent wrist-wearing equipment with heart rate detection function Active CN209847168U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920074962.XU CN209847168U (en) 2019-01-16 2019-01-16 Intelligent wrist-wearing equipment with heart rate detection function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920074962.XU CN209847168U (en) 2019-01-16 2019-01-16 Intelligent wrist-wearing equipment with heart rate detection function

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115191976A (en) * 2021-04-09 2022-10-18 广东小天才科技有限公司 Health detection structure and wearable device
WO2023060975A1 (en) * 2021-10-12 2023-04-20 安徽华米信息科技有限公司 Stent having fresnel combination lens, circuit board, and electronic device
WO2023098379A1 (en) * 2021-12-03 2023-06-08 华为技术有限公司 Heart rate measurement module and electronic device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115191976A (en) * 2021-04-09 2022-10-18 广东小天才科技有限公司 Health detection structure and wearable device
WO2023060975A1 (en) * 2021-10-12 2023-04-20 安徽华米信息科技有限公司 Stent having fresnel combination lens, circuit board, and electronic device
WO2023098379A1 (en) * 2021-12-03 2023-06-08 华为技术有限公司 Heart rate measurement module and electronic device

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Effective date of registration: 20230601

Address after: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen

Patentee after: HUAWEI TECHNOLOGIES Co.,Ltd.

Address before: 266104 Room 308, North Investment Street Service Center, Laoshan District, Qingdao, Shandong.

Patentee before: GOERTEK TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right