CN211381307U - Pulse condition pressure sensor based on liquid encapsulation - Google Patents
Pulse condition pressure sensor based on liquid encapsulation Download PDFInfo
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- CN211381307U CN211381307U CN201921158837.3U CN201921158837U CN211381307U CN 211381307 U CN211381307 U CN 211381307U CN 201921158837 U CN201921158837 U CN 201921158837U CN 211381307 U CN211381307 U CN 211381307U
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Abstract
The utility model discloses a pulse condition pressure sensor based on liquid encapsulation, including flexible software liquid bag and signal lead-out wire, flexible software liquid bag is equipped with inert insulating liquid, and signal lead-out wire one end is connected on pressure sensors, and the other end stretches out flexible software liquid bag outside, and signal lead-out wire is connected with pulse signal processor, the beneficial effects of the utility model are that: 1. consistency: the pulse condition pressure sensor has higher product consistency; 2. ease of use: the contact surface is larger, the sensitivity is higher, and the contact surface is suitable for non-traditional Chinese medicine professionals; 3. production feasibility: full-automatic production, high efficiency and high yield.
Description
Technical Field
The utility model relates to a sensor technical field specifically is a pulse manifestation pressure sensor based on liquid encapsulation.
Background
The pulse condition sensor is an important component of the pulse condition instrument, mainly plays a role in sensing pulse pressure and collecting pulse condition data, and is the most key interface of a human body and the pulse condition instrument. The performance of the pulse condition sensor directly determines the pulse data quality, and thus the pulse condition test result. The pulse condition sensor not only needs to have better sensitivity, linearity and precision, but also needs to have wide applicability and usability, thereby reducing the influence of the human body pulse position difference and the wrist structure difference on the measurement.
The main pulse condition pressure sensors in the market at present are film piezoelectric sensors, film piezoresistive sensors, MEMS array sensors and cantilever beam pressure sensors. The film piezoelectric sensor, the film piezoresistive sensor and the MEMS sensor have the defects of poor secondary packaging consistency, small size and inconvenience in searching pulse condition positions. The array sensor has the defects of difficult processing, high yield, poor consistency among array points and the like due to the fact that the array sensor is packaged difficultly. The cantilever beam sensor has the disadvantages that the whole size is large, the head of the sensor is small, the pulse position is not easy to find, and the whole product has large size and can not be carried portably. In addition, sensors on the market generally adopt a mode that a hard shell and soft rubber are pressed together at the position of a pulse condition, so that the sensors are easy to press imprints on arms and are uncomfortable in the aspect of impression experience.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pulse condition pressure sensor based on liquid encapsulation to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a pulse condition pressure sensor based on liquid packaging comprises a flexible soft liquid bag and a signal outgoing line, wherein inert insulating liquid is arranged in the flexible soft liquid bag, one end of the signal outgoing line is connected to a pressure sensor, and the other end of the signal outgoing line extends out of the flexible soft liquid bag.
As a further technical solution of the present invention: and a sensor framework is arranged in the flexible soft liquid sac.
As a further technical solution of the present invention: the pressure sensor is fixed on the control circuit board, one side of the control circuit board is inert insulating liquid, and the other side of the control circuit board is provided with waterproof encapsulating materials.
As a further technical solution of the present invention: the control circuit board is arranged on the sensor framework.
As a further technical solution of the present invention: the encapsulating material is epoxy resin or waterproof glue.
Compared with the prior art, the beneficial effects of the utility model are that: 1. consistency: the pulse condition pressure sensor has higher product consistency; 2. ease of use: the contact surface is larger, the sensitivity is higher, and the contact surface is suitable for non-traditional Chinese medicine professionals; 3. production feasibility: full-automatic production, high efficiency and high yield.
Drawings
Fig. 1 is a structural diagram of embodiment 1 of the present invention.
Fig. 2 is a structural diagram of embodiment 2 of the present invention.
Fig. 3 is a structural diagram of embodiment 3 of the present invention.
In the figure: the sensor comprises a signal lead-out wire 101, a pressure sensor 102, inert insulating liquid 103, a flexible soft liquid bag 104, potting material 105, a control circuit board 106 and a sensor framework 107.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1: referring to fig. 1-3, a liquid-based pulse pressure sensor is disclosed, in which a sealed flexible fluid bag 104 is filled with an inert insulating liquid 103, and a pressure sensor 102 is fixed in the flexible fluid bag 104 and is wrapped with the inert insulating liquid 103. The wrist pulse position is contacted by a flexible soft liquid bag 104, the pulse wave transmits force to the pressure sensor 102 through the inert insulating liquid 103, and then data is transmitted to the signal processor through the signal lead-out wire 101. The sensor can output an analog signal or a digital signal, and the output signal is proportional to the pulse pressure value. The sensor adopting the structure has the following advantages: 1. the consistency of the pulse condition sensor is improved, 2 the pressure sensor is more suitable for pulse condition instrument products and specially customized for the pulse condition instrument, 3 the sensor is large in area and high in sensitivity and can help a common user to quickly find the pulse condition position, and 4 the surface of the pressure sensor of the pulse condition instrument is made of medical silica gel and medical silicone oil, so that the pressure sensor is more anti-allergic and more comfortable when contacting the skin.
Example 2, on the basis of example 1, as shown in fig. 2, inert insulating liquid 103 subjected to vacuum debubbling is injected into a sac assembly composed of a sensor skeleton 107 and a flexible soft sac 104, a control circuit board 106 welded with a pressure sensor 102 is hermetically placed, and then a potting material 105 of epoxy resin or waterproof glue is filled and potted after vacuum debubbling, and baking and testing are performed after completion.
Example 3, on the basis of example 1, as shown in fig. 3, inert insulating liquid 103 subjected to vacuum debubbling is injected into a sac assembly composed of a sensor skeleton 105 and a flexible soft sac 104, a control circuit board 106 welded with a pressure sensor 102 is hermetically placed, and then a potting material 105 of epoxy resin or waterproof glue is filled and sealed after vacuum debubbling, and baking and testing are performed after completion.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A pulse condition pressure sensor based on liquid packaging comprises a flexible soft liquid bag (104) and a signal leading-out wire (101), and is characterized in that the flexible soft liquid bag (104) is provided with inert insulating liquid (103), one end of the signal leading-out wire (101) is connected to a pressure sensor (102), and the other end of the signal leading-out wire extends out of the flexible soft liquid bag (104).
2. The pulse pressure sensor based on liquid encapsulation of claim 1, characterized in that a sensor skeleton (107) is arranged inside the flexible soft sac (104).
3. The pulse pressure sensor based on liquid encapsulation of claim 2, characterized in that the pressure sensor (102) is fixed on a control circuit board (106), and one side of the control circuit board (106) is inert insulating liquid (103) and the other side is provided with a potting material (105) for water resistance.
4. The pulse pressure sensor based on liquid package of claim 3, wherein the control circuit board (106) is mounted on the sensor frame (107).
5. The pulse pressure sensor based on liquid encapsulation of claim 3, characterized in that the potting material (105) is epoxy or waterproof glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921158837.3U CN211381307U (en) | 2019-07-23 | 2019-07-23 | Pulse condition pressure sensor based on liquid encapsulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921158837.3U CN211381307U (en) | 2019-07-23 | 2019-07-23 | Pulse condition pressure sensor based on liquid encapsulation |
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| CN211381307U true CN211381307U (en) | 2020-09-01 |
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| CN201921158837.3U Active CN211381307U (en) | 2019-07-23 | 2019-07-23 | Pulse condition pressure sensor based on liquid encapsulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269595A (en) * | 2019-07-23 | 2019-09-24 | 上海国民集团健康科技有限公司 | A kind of pulse condition pressure sensor based on liquid-packing |
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2019
- 2019-07-23 CN CN201921158837.3U patent/CN211381307U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269595A (en) * | 2019-07-23 | 2019-09-24 | 上海国民集团健康科技有限公司 | A kind of pulse condition pressure sensor based on liquid-packing |
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