WO2022105391A1

WO2022105391A1 - Temperature and humidity sensor mounting structure and respiratory support device

Info

Publication number: WO2022105391A1
Application number: PCT/CN2021/117965
Authority: WO
Inventors: 陈文�; 戴征
Original assignee: 湖南明康中锦医疗科技发展有限公司
Priority date: 2020-09-14
Filing date: 2021-09-13
Publication date: 2022-05-27
Also published as: CN112461294A

Abstract

A temperature and humidity sensor mounting structure, comprising: a temperature and humidity sensor assembly (1) and a gas pipe (2); the temperature and humidity sensor assembly (1) is suspended in the gas pipe (2) and is fixed and sealed by means of a sealant; the temperature and humidity sensor assembly (1) comprises a temperature and humidity sensor (11) provided with a temperature and humidity chip (111) and a temperature and humidity sensor mounting member (12), the temperature and humidity sensor (11) being inserted from one end of an accommodating groove (121) on the temperature and humidity sensor mounting member (12) and extending to a notch (1211) at the other end of the accommodating groove, and the two being fixed by means of the sealant, the sealant being coated on the periphery of the temperature and humidity chip (111), and the temperature and humidity chip (111) being in contact with gas in the gas pipe (2) at the notch (1211) in order to sense the temperature and humidity of the gas.

Description

A temperature and humidity sensor installation structure and respiratory support equipment

technical field

The application belongs to the technical field of sensors, and in particular relates to a temperature and humidity sensor installation structure and a breathing support device.

Background technique

Respiratory support equipment is a vital auxiliary medical equipment that can prevent and treat respiratory failure, reduce complications, and save and prolong the life of users. When the user uses the respiratory support device, in order to ensure the humidity and temperature of the airflow in the respiratory support device, a temperature and humidity sensor is usually used to detect the temperature and humidity of the airflow in the trachea of the respiratory support device, so as to provide the user with warm and humid airflow, allowing the user to use The user feels natural and comfortable and improves sleep quality.

The gas temperature in the trachea of the existing respiratory support equipment is very high, and a large amount of condensed water will be generated during the cooling process. Due to factors such as thermal expansion and cold contraction, there will be a small gap between the chip and the inner wall of the elbow, and the condensed water will enter from the gap. The silver pins of the chip are even inside the chip, making the sensor chip short-circuit and invalid.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a temperature and humidity sensor installation structure to solve the technical problem that the temperature and humidity sensor fails due to the generation of condensed water in the high humidity environment in the prior art; The respiratory support equipment with the temperature and humidity sensor installation structure.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

In a first aspect, the present invention provides a temperature and humidity sensor installation structure, including: a temperature and humidity sensor assembly and an air pipe; the temperature and humidity sensor assembly is suspended in the air pipe and is fixed and sealed by a sealant; the temperature and humidity sensor The assembly includes a temperature and humidity sensor provided with a temperature and humidity chip and a temperature and humidity sensor mounting piece, the temperature and humidity sensor is inserted from one end of the accommodating groove on the temperature and humidity sensor mounting piece and extends to the gap at the other end of the accommodating groove The two are fixed by sealant, the temperature and humidity chip is coated with sealant, and the temperature and humidity chip is in contact with the gas in the trachea at the gap to sense the temperature and humidity of the gas.

Further, the temperature and humidity sensor further includes a PCB circuit board, and the PCB circuit board is partially inserted into the accommodating groove.

Further, the temperature and humidity chip is arranged on the PCB circuit board.

Further, the PCB circuit board has a T-shaped structure, and the portion of the PCB circuit board that is not inserted into the accommodating groove is wider.

Further, solder joints are provided on the wider portion of the PCB circuit board.

Further, the trachea is a T-shaped structure, the wider end of the trachea circulates up and down to form an airflow channel, and the temperature and humidity chip is located in the airflow channel.

Further, the narrow end of the air pipe is provided with a connection port, and the connection port is the voltage input and signal extraction interface of the temperature and humidity chip.

Further, the temperature and humidity sensor mounting member further includes an assembling handle, and the assembling handle inserts the temperature and humidity sensor assembly from the wiring port into the trachea at the narrow end.

Further, the accommodating groove is laterally inserted into the trachea at the narrower end.

In a second aspect, the present invention also provides a respiratory support device, including the above-mentioned temperature and humidity sensor installation structure.

Compared with the prior art, the temperature and humidity sensor installation structure and respiratory support device provided by the present invention have at least the following beneficial effects:

The invention can effectively avoid the accumulation of condensed water around the temperature and humidity chips, prevent the temperature and humidity sensor chips from failing in high humidity conditions, and is convenient to install, safe and reliable.

Description of drawings

In order to illustrate the solution of the present invention more clearly, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention, which are useful to ordinary skills in the art. As far as personnel are concerned, other drawings can also be obtained from these drawings on the premise of no creative work.

1 is an overall schematic diagram of a temperature and humidity sensor installation structure provided by an embodiment of the present invention;

2 is an overall schematic diagram of a temperature and humidity sensor of a temperature and humidity sensor installation structure provided by an embodiment of the present invention;

3 is an overall schematic diagram of a temperature and humidity sensor assembly of a temperature and humidity sensor installation structure provided by an embodiment of the present invention;

4 is an overall schematic diagram of a temperature and humidity sensor mounting member of a temperature and humidity sensor mounting structure provided by an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a temperature and humidity sensor installation structure according to an embodiment of the present invention.

Reference numerals: 1-Temperature and humidity sensor assembly; 11-Temperature and humidity sensor; 111-Temperature and humidity chip; 112-PCB circuit board; 113-Solder joint; 12-Temperature and humidity sensor mounting piece; Notch; 122-assembly handle; 2-trachea; 21-air flow channel; 22-wire port.

Detailed ways

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of the present invention; the terms used herein in the specification are for the purpose of describing specific embodiments only, and are not intended to be Limiting the invention, for example, the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top" ", "bottom", "inside", "outside" and other indicated orientations or positions are based on the orientations or positions shown in the accompanying drawings, which are only for convenience of description and should not be construed as a limitation on the technical solution.

The terms "comprising" and "having" and any variations thereof in the description and claims of the present invention and the above description of the drawings are intended to cover non-exclusive inclusions; The terms "first", "second", etc. are used to distinguish different objects, rather than to describe a specific order. In the description and claims of the present invention and the above description of the drawings, when an element is referred to as being "fixed to" or "mounted on" or "disposed on" or "connected to" another element, it can be directly or indirectly on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The invention provides a temperature and humidity sensor installation structure, which is applied to respiratory support equipment in the medical industry. The temperature and humidity sensor installation structure includes:

The temperature and humidity sensor assembly and the trachea; the temperature and humidity sensor assembly is suspended in the trachea and fixed and sealed by sealant; the temperature and humidity sensor assembly includes a temperature and humidity sensor with a temperature and humidity chip and a temperature and humidity sensor mounting piece. One end of the accommodating groove on the sensor mounting part is inserted and extended to the gap at the other end of the accommodating groove, and the two are fixed by sealant. The temperature and humidity chip is coated with sealant, and the temperature and humidity chip is in contact with the gas in the trachea at the gap. To sense the temperature and humidity of the gas.

In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

The present invention provides a temperature and humidity sensor installation structure, which is applied to respiratory support equipment in the medical industry, and can also be applied to equipment in other fields in some cases. The installation structure includes: a temperature and humidity sensor assembly 1 and an air pipe 2, the temperature and humidity sensor assembly 1 is suspended in the air pipe 2 and is fixed and sealed by a sealant; the temperature and humidity sensor assembly 1 includes a temperature and humidity sensor 11 with a temperature and humidity The humidity sensor mounting piece 12, the temperature and humidity sensor 11 are inserted from one end of the accommodating groove 121 on the temperature and humidity sensor mounting piece 12 and extend to the gap 1211 at the other end of the accommodating groove 121, the two are fixed by sealant, and the temperature and humidity chip 111 The surrounding is coated with sealant, and the temperature and humidity chip 111 is in contact with the gas in the air pipe 2 at the gap 1211 to sense the temperature and humidity of the gas. The sensors are connected to each other, and the sensor can sense the temperature and humidity of the gas. When the water vapor in the gas condenses into water, because the temperature and humidity chip 111 is placed vertically, the water will naturally fall under the action of gravity, and the sensor will not fail due to long-term soaking. The sealant has a waterproof function, which can prevent moisture from entering the silver feet of the temperature and humidity chip 111 after curing, and the gap 1211 can allow gas to flow.

Further, in this embodiment, as shown in FIG. 2 , the temperature and humidity sensor 11 further includes a PCB circuit board 112 .

Further, in this embodiment, as shown in FIG. 2 , the temperature and humidity chip 111 is disposed at one end of the PCB circuit board, and the temperature and humidity chip 111 is used to contact the gas and sense the temperature and humidity of the gas.

Further, in this embodiment, with reference to FIG. 2 and FIG. 3 , the PCB circuit board 112 has a T-shaped structure, and the T-shaped structure is convenient for the installation of the PCB circuit board 112 , and the temperature and humidity chip 111 is arranged on the narrower end of the PCB circuit board 112 In order to meet the requirement that the temperature and humidity chip 111 can work for a long time, after soldering, a sealant will be applied around the temperature and humidity chip 111. After the sealant is cured, it can prevent moisture from entering the silver feet of the temperature and humidity chip 111, and the PCB circuit board 112 is not inserted into the container. The part of the placement groove 121 is wider.

Further, in this embodiment, as shown in FIG. 2 , the wider part of the PCB circuit board 112 is provided with solder joints 113 , and the solder joints 113 are the voltage input and signal output structures of the temperature and humidity chip 111 , which can be guided and host connection.

Further, in this embodiment, referring to FIG. 1 , FIG. 2 and FIG. 5 , the air pipe 2 has a T-shaped structure, and the wider end of the air pipe 2 flows up and down to form an airflow channel 21 , and the humidified gas will flow from the airflow channel 21 to the bottom. Up flow, the temperature and humidity chip 111 is in contact with the gas and feeds back the measurement data.

Further, in this embodiment, referring to FIG. 1 , FIG. 2 and FIG. 5 , a narrow end of the air pipe 2 is provided with a wiring port 22 , and the wiring port 22 is a voltage input and signal output interface of the temperature and humidity chip 111 .

Further, in this embodiment, with reference to FIGS. 1 , 2 and 4 , the temperature and humidity sensor mounting member 12 further includes an assembly handle 122 , and the assembly handle 122 inserts the temperature and humidity sensor assembly 1 from the wiring port 22 into the trachea 2 at the narrow end. , the assembly handle 122 makes it easy to insert the temperature and humidity sensor assembly 1 into the trachea 2 during assembly.

Further, in this embodiment, referring to FIG. 1 and FIG. 4 , the accommodating groove 121 is laterally inserted into the narrower end of the trachea 2 , and then fixed and sealed with sealant, also to prevent moisture from entering the silver feet of the temperature and humidity chip 111 .

In the installation structure of the temperature and humidity sensor described in the above embodiment, the temperature and humidity sensor 11 is a cantilever structure in the air pipe 2, and can communicate with the gas during normal gas transportation, and the sensor can sense the temperature and humidity of the gas. When the water vapor in the gas condenses into water, since the temperature and humidity chip 11 is placed vertically, the water will fall naturally under the action of gravity, and the sensor will not be immersed for a long time and will not fail; Applying sealant in the groove 121 can effectively prevent condensation water from accumulating around the temperature and humidity chip 111, prevent the temperature and humidity chip 111 from failing under high humidity conditions, and is easy to install, safe and reliable.

The embodiment of the present invention also provides a respiratory support device, including the temperature and humidity sensor installation structure in the above embodiment. In the respiratory support device described in the above embodiment, the temperature and humidity sensor 11 of the temperature and humidity sensor installation structure adopted is a cantilever structure in the trachea 2, and can communicate with the gas when the gas is normally transported, and the sensor can sense the temperature and humidity of the gas. . When the water vapor in the gas condenses into water, since the temperature and humidity chip 11 is placed vertically, the water will fall naturally under the action of gravity, and the sensor will not be immersed for a long time and will not fail; Applying sealant in the groove 121 can effectively prevent condensation water from accumulating around the temperature and humidity chip 111, and prevent the temperature and humidity chip 111 from failing under high humidity conditions. The installation is convenient, safe and reliable, and can effectively ensure the working efficiency of the temperature and humidity sensor installation structure, thereby Improves the medical effect of respiratory support equipment.

Obviously, the above-described embodiments are only preferred embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are shown in the accompanying drawings, but do not limit the patent scope of the present application. This application may be embodied in many different forms, rather these embodiments are provided so that a thorough and complete understanding of the disclosure of this application is provided. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. . Any equivalent structure made by using the contents of the description and drawings of the present application, which is directly or indirectly used in other related technical fields, is also within the scope of protection of the patent of the present application.

Claims

A temperature and humidity sensor installation structure, characterized in that it includes:

Temperature and humidity sensor assembly and air pipe;

The temperature and humidity sensor assembly is suspended in the trachea and fixed and sealed by sealant;

The temperature and humidity sensor assembly includes a temperature and humidity sensor provided with a temperature and humidity chip and a temperature and humidity sensor mounting piece, the temperature and humidity sensor is inserted from one end of the accommodating groove on the temperature and humidity sensor mounting piece and extends to the accommodating piece At the gap at the other end of the groove, the two are fixed by sealant, the temperature and humidity chip is coated with sealant, and the temperature and humidity chip is in contact with the gas in the trachea at the gap to sense the temperature and humidity of the gas.
The temperature and humidity sensor installation structure according to claim 1, wherein the temperature and humidity sensor further comprises a PCB circuit board, and the PCB circuit board is partially inserted into the accommodating groove.
The temperature and humidity sensor installation structure according to claim 2, wherein the temperature and humidity chip is arranged on the PCB circuit board.
The temperature and humidity sensor installation structure according to claim 3, wherein the PCB circuit board is a T-shaped structure, and the part of the PCB circuit board that is not inserted into the accommodating groove is wider.
A temperature and humidity sensor installation structure according to claim 4, wherein solder joints are arranged on the PCB circuit board of the wider part.
A temperature and humidity sensor installation structure according to claim 1, wherein the air pipe is a T-shaped structure, the wider end of the air pipe flows up and down to form an air flow channel, and the temperature and humidity chip is located in the air flow channel middle.
The temperature and humidity sensor installation structure according to claim 6, wherein a narrow end of the air pipe is provided with a wiring port, and the wiring port is a voltage input and signal output interface of the temperature and humidity chip.
The temperature and humidity sensor mounting structure according to claim 7, wherein the temperature and humidity sensor mounting member further comprises an assembling handle, and the assembling handle inserts the temperature and humidity sensor assembly from the wiring port into a narrower one end of the trachea.
The installation structure for a temperature and humidity sensor according to claim 8, wherein the accommodating groove is inserted into the trachea at the narrower end sideways.
A respiratory support device, characterized in that, comprising: a temperature and humidity sensor installation structure according to any one of claims 1 to 9.