CN218865281U

CN218865281U - Pressure-bearing non-contact optical conduction type temperature measurer and fluid automatic constant-temperature adjusting device

Info

Publication number: CN218865281U
Application number: CN202320075146.7U
Authority: CN
Inventors: 赵璟轩; 赵旭
Original assignee: Zhongshan Luckey Electronic Technology Co ltd
Current assignee: Zhongshan Luckey Electronic Technology Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-04-14
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a pressure-bearing non-contact optical conduction type temperature measurer and a fluid automatic constant temperature adjusting device, wherein the pressure-bearing non-contact optical conduction type temperature measurer comprises a pressure-bearing protective shell; the isolation layer is arranged in the pressure-bearing type protective shell, and a detection cavity penetrating through the isolation layer is arranged on the isolation layer; the light sensing unit of the thermopile sensor is coaxially arranged at one end of the detection cavity and is electrically connected with the electric control component; the thermopile sensor can directly detect infrared wavelengths of different temperatures emitted by fluid on the surface of the pressure-bearing type protective shell, and electric signals of different temperatures are output; the fluid dynamic real-time temperature detection and automatic regulation device has the advantages of no need of conduction of an intermediate medium, optical conduction, non-contact, quick response time, small attenuation and the like, reduces the lag time of temperature detection and data output, can shorten the lag time of temperature detection to a time range taking millisecond as a unit, realizes quick temperature detection, and outputs a real-time temperature electric signal to the electronic control MCU, and meets the requirements of dynamic real-time temperature detection and automatic regulation of fluid.

Description

Pressure-bearing non-contact optical conduction type temperature measurer and fluid automatic constant-temperature adjusting device

Technical Field

The utility model relates to a fluid automatic temperature adjustment control system and hot water fluid supply system field, in particular to pressure-bearing non-contact optical conduction temperature measurer and fluid automation constant temperature adjusting device.

Background

Temperature detection and electric control regulation systems are required to be used on a plurality of household electrical appliances, and most of the household electrical appliances adopt thermocouples for temperature detection and matched electric control regulation. In order to protect the structure and product performance of the thermocouple, a metal shell (stainless steel, copper and the like) is mostly adopted as a pressure-bearing type protective shell, and resin and other materials are filled in the metal shell to serve as a heat conductor between the pressure-bearing type protective shell and the thermocouple, so that the internal thermocouple is protected.

Due to the long time lag involved in physical conduction between the metal housing, the resin, and the thermocouple, a lag time of 2-3 seconds or more is generally required to output data that the current water temperature is detected. In temperature detection and electric control automatic temperature regulation products (showers, water faucets and the like) of fluid in a pressure-bearing pipeline in a working state, the temperature of relevant fluid needs to be detected immediately and fed back to a single chip microcomputer processor immediately, the single chip microcomputer processor compares the outlet water temperature set by a user with the actually detected water temperature, and when the actually detected outlet water temperature exceeds the outlet water temperature range set by the user, the single chip microcomputer processor controls the proportion of cold water and hot water according to the numerical value of positive and negative temperature difference, so that the effect of constant outlet water temperature is achieved. The traditional thermocouple has the problem of physical temperature conduction lag, cannot meet the requirement of real-time temperature detection instant data output of water temperature change, and makes a response condition of temperature parameter change output, so that the actual output water temperature adjusting time is too long, and the qualified parameter requirement of national relevant product standards cannot be met, and therefore, a temperature detector with short temperature detection response lag time is urgently needed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a pressure-bearing non-contact optical conduction formula thermoscope.

The embodiment of the utility model provides a solve the technical scheme that its technical problem adopted and be: pressure-bearing non-contact optical conduction formula thermoscope includes:

a pressure-bearing protective shell, the outer surface of which is mounted in the fluid pipeline;

the isolation layer is arranged in the pressure-bearing type protective shell, and a detection cavity penetrating through the isolation layer is arranged on the isolation layer;

the light sensing unit of the thermopile sensor is coaxially arranged at one end of the detection cavity and is electrically connected with the electric control component, and the thermopile sensor can detect the temperature of the fluid on the surface of the pressure-bearing type protection shell through the detection cavity when the fluid is in contact with the outer wall of the pressure-bearing type protection shell.

Preferably, the isolation layer is provided with a heat insulation cavity communicated with the detection cavity, and the light sensing unit of the thermopile sensor is located in the heat insulation cavity.

Preferably, the pressure-bearing protective case is made of quartz glass or PC with high light transmittance.

Preferably, the pressure-bearing protective case is made of a metal material and the surface of the metal material is provided with a dark or black coating.

Preferably, the pressure-bearing protective case is made of copper, silver or stainless steel.

Preferably, the isolation layer is made of silicone.

Preferably, the isolation layer is made of plastic.

The fluid automatic constant temperature adjusting device comprises the pressure-bearing non-contact optical conduction type temperature measurer.

The utility model has the advantages that: the pressure-bearing non-contact optical conduction type temperature measurer comprises a pressure-bearing protective shell, wherein the outer surface of the pressure-bearing non-contact optical conduction type temperature measurer is arranged in a fluid pipeline; the isolation layer is arranged in the pressure-bearing type protective shell, and a detection cavity penetrating through the isolation layer is arranged on the isolation layer; the light sensing unit of the thermopile sensor is coaxially arranged at one end of the detection cavity and is electrically connected with the electric control component, and the thermopile sensor can detect the temperature of the fluid on the surface of the pressure-bearing type protective shell through the detection cavity when the fluid is contacted with the outer wall of the pressure-bearing type protective shell; by the structure, the thermopile sensor can directly detect infrared wavelengths of different temperatures emitted by fluid on the surface of the pressure-bearing type protective shell, so that electric signals of different temperatures are output; the fluid dynamic real-time temperature detection and automatic regulation device has the advantages of no need of conduction of an intermediate medium, optical conduction, non-contact, quick response time, small attenuation and the like, reduces the lag time of temperature detection and data output, can shorten the lag time of temperature detection to a time range taking millisecond as a unit, realizes quick temperature detection, and outputs a real-time temperature electric signal to the electronic control MCU, and meets the requirements of dynamic real-time temperature detection and automatic regulation of fluid.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a pressure-bearing non-contact optical conduction type temperature detector;

FIG. 2 is an exploded view of a pressure-bearing non-contact optically conductive temperature detector;

FIG. 3 is a cross-sectional view of a pressure-bearing non-contact optically-conductive thermoscope;

FIG. 4 is an exploded view of one embodiment of a pressure-bearing, non-contact, optically-conductive temperature detector;

FIG. 5 is a schematic view of a portion of an embodiment of a pressure-bearing non-contact optically conductive temperature detector;

FIG. 6 is a cross-sectional view of one embodiment employing a pressure-bearing, non-contact, optically-conductive temperature detector;

FIG. 7 is an electrical schematic diagram of one embodiment of a pressure-bearing non-contact optically conductive temperature detector.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1 to 7, the pressure-bearing non-contact optical conduction type temperature measurer includes:

a pressure-bearing type protective case 10 installed in a fluid pipe at an outer surface thereof;

the isolation layer 20 is arranged in the pressure-bearing protective shell 10, and a detection cavity 21 penetrating through the isolation layer 20 is arranged on the isolation layer 20;

the light sensing unit 31 of the thermopile sensor 30 is coaxially disposed at one end of the detection cavity 21 and electrically connected to the electronic control unit, and the thermopile sensor 30 can detect the temperature of the fluid on the surface of the pressure-bearing protective shell 10 through the detection cavity 21 when the fluid contacts the outer wall of the pressure-bearing protective shell 10.

The isolation layer 20 is provided with a heat insulation cavity 22 communicated with the detection cavity 21, and the light sensing unit 31 of the thermopile sensor 30 is positioned in the heat insulation cavity 22; the isolation layer 20 is used for heat insulation and light insulation, so as to prevent light or temperature from being conducted onto the thermopile sensor 30 and affecting the detection result of the thermopile sensor 30.

The pressure-bearing type protective case 10 is made of quartz glass or PC with high light transmittance; of course, the light-transmitting material can also be made of other materials with high light transmittance, and is not limited herein.

The pressure-bearing protective shell 10 is made of a metal material, and the surface of the metal material is provided with a dark color or black coating; the surface of the pressure-bearing type protective case 10 may be treated to have a dark color or black color, thereby achieving a better heat absorption effect.

The pressure-bearing protective case 10 is made of copper, silver or stainless steel; of course, the heat-conducting material may also be made of other materials with good heat-conducting property, and is not limited herein.

The isolation layer 20 is made of silica gel or plastic; of course, the heat insulation material may be made of other materials with good heat insulation performance, and is not limited herein.

1. In the present invention, referring to fig. 4-6, in order to apply the present invention, in this embodiment, the device is a shower, the shower mainly includes a housing 71 and a power supply 72, a control panel 73, a pipeline main body 80, an electrically controlled fluid temperature proportional control valve 74, a plurality of water outlet electrically controlled valves 75 and a temperature measuring device A1, the pipeline main body 80 is provided with a hot water inlet 81, a cold water inlet 82, a hot water pipeline 83, a water outlet pipeline 84 and a cold water pipeline 85, the hot water inlet 81 is respectively communicated with the cold water pipeline 85 and the water outlet pipeline 84 through the proportional valve of the electrically controlled fluid temperature proportional control valve 74, the proportional valve of the electrically controlled fluid temperature proportional control valve 74 is serially connected to the communication positions of the hot water pipeline 83, the cold water pipeline 85 and the water outlet pipeline 84, the temperature measuring device A1 is serially connected to the water outlet pipeline 84, the water inlets of the plurality of the electrically controlled valves 75 are communicated with the water outlet pipeline 84, the power supply 72, the temperature measuring device A1, the electrically controlled fluid temperature proportional control valve 74, the water outlet control switch 76, the water outlet temperature control panel 77, the display screen 78 and the plurality of the electrically controlled valves 75 are electrically connected to the electrically controlled valves 73; the temperature measuring device also comprises a temperature measuring device A2 connected in series in the pipeline of the hot water pipeline 83 and a temperature measuring device A3 connected in series in the pipeline of the cold water pipeline 85 and electrically connected with the control board 73.

2. The working principle of this embodiment is as follows:

when a user needs to use hot water, the electric control fluid temperature proportion adjusting valve 74 is adjusted to close the cold water pipeline 85, the communication part of the hot water pipeline 83 and the water outlet pipeline 84 is completely opened, the hot water pipeline 83 is completely communicated with the water outlet pipeline 84, and therefore the hot water can reach the water inlets of the water outlet electric control valves 75 along the hot water inlet 81, the hot water pipeline 83 and the water outlet pipeline 84, and the user can open the corresponding water outlet electric control valves 75 according to different needs; when a user needs to use cold water, the electric control fluid temperature proportion adjusting valve 74 is adjusted to close the hot water pipeline 83, the communication part of the cold water pipeline 85 and the water outlet pipeline 84 is completely opened, the cold water pipeline 85 is completely communicated with the water outlet pipeline 84, so that the cold water can flow along the cold water inlet 82, the cold water pipeline 85 and the water outlet pipeline 84 and then reach the water inlets of the water outlet electric control valves 75, and the user can open the corresponding water outlet electric control valves 75 according to different needs, so that the user can use the cold water; when a user needs to use warm water, whether the temperature of the outlet water reaches the set outlet water temperature is detected through the temperature detector A1, the electric control fluid temperature proportion adjusting valve 74 is automatically adjusted through an output instruction of the control panel 73, so that the outlet water ratio value of cold water and hot water is changed, the outlet water temperature reaches the outlet water temperature set by the user, the user can use the warm water at the moment, the temperature of the outlet water is detected through the temperature detector A1, and when the outlet water temperature reaches the preset temperature value, the position of a valve core of the electric control fluid temperature proportion adjusting valve 74 in a cold and hot water pipeline is kept, so that the outlet water temperature of the outlet pipeline 84 is kept constant; certainly, the temperature detector A3 can be connected in series in the pipeline of the cold water pipeline 85 to detect the temperature of the cold water, the temperature detector A2 can be connected in series in the pipeline of the hot water pipeline 81 to detect the temperature of the hot water, and the temperature detector A1 is matched with the temperature detector to better control the temperature of the outlet water; the water outlet control switch 76 is used for controlling the corresponding water outlet electric control valve 75, and can open or close the corresponding water outlet, such as top shower, shower head, lower water outlet, etc., and the water outlet temperature regulator 77 is used for regulating the temperature of the outlet water;

3. referring to fig. 7, for using the utility model discloses an embodiment's automatically controlled schematic block diagram, wherein, when the actual play water temperature that automatically controlled MCU detected and set for the play water temperature when having the difference in temperature, automatically controlled MCU output adjusts the signal of telecommunication of automatically controlled fluid temperature proportional control valve 74, thereby the case of automatically regulated automatically controlled fluid temperature proportional control valve 74 carries out corresponding regulation, make actual play water temperature reach and set for the temperature, the user carries out the regulation of play water temperature once more during and sets for, temperature detection device also can adjust once more according to the play water temperature of real-time play water temperature and new settlement, control, thereby make the play water temperature reach the newest temperature within range of setting for.

4. By adopting the principle that different infrared wavelengths are emitted at different temperatures, the thermopile sensor 30 can measure the temperature by detecting the infrared wavelength emitted by an object at a certain distance; because there is no intermediate medium to conduct between the thermopile sensor 30 and the pressure-bearing protective housing 10, that is, the thermopile sensor directly passes through the detection cavity 21 to detect the temperature on the surface of the pressure-bearing protective housing 10, there is no need for the conduction of the intermediate medium, i.e., optical conduction, which has the advantages of non-contact, fast response time, small attenuation, etc., the lag time of temperature detection is reduced, the lag time of temperature detection can be shortened to the time range of millisecond unit, fast temperature detection can be realized, and real-time temperature electrical signals can be output to the single chip microcomputer, thereby satisfying the dynamic real-time detection and regulation requirements of the fluid; preferably, the isolation layer 20 is used between the pressure-bearing protective shell 10 and the thermopile sensor 30 for heat insulation, so as to avoid the detected temperature being conducted to the thermopile sensor 30, which causes the temperature change of the surrounding environment of the thermopile sensor 30, thereby affecting the reference temperature parameter of the thermopile sensor 30 and causing the error drift of the data value of the detected temperature, and the isolation layer 20 is made of a material with good heat insulation effect, preferably silica gel.

5. Of course, in order to avoid the drift of the reference temperature of the thermopile sensor 30 caused by the change of the ambient temperature around the thermopile sensor 30, a matched ambient temperature detection circuit may be provided near the thermopile sensor 30 to automatically correct the parameter of the change of the ambient reference temperature of the thermopile sensor 30.

Pressure-bearing non-contact optical conduction type thermoscope still includes:

the pressure-bearing type protective shell 10 can be placed into the accommodating cavity 41 through the mounting port 43 and partially extends out of the detection port 42;

a press ring 50 connected to the mount 40 through a first detachable structure 61 and abutting against the thermopile sensor 30; during the assembly, install first waterproof circle 62 in the recess that corresponds in mount pad 40 earlier, then pack isolation layer 20 and thermopile sensor 30 into in order in the pressure-bearing protective housing 10, insert pressure-bearing protective housing 10 by installing port 43 in holding chamber 41 and make the part of pressure-bearing protective housing 10 extend to outside the detection mouth 42 again, use clamping ring 50 to install in mount pad 40 and with thermopile sensor 30 butt through threaded connection's mode, be used for spacing pressure-bearing protective housing 10, isolation layer 20 and thermopile sensor 30, the through wires hole has on the clamping ring 50, thermopile sensor 30's pencil through the through wires hole extends to the outside and is connected with automatically controlled MCU.

The first detachable structure 61 is provided as a first threaded connection structure.

A first waterproof ring 62 is arranged between the pressure-bearing protective shell 10 and the mounting seat 40.

A second waterproof ring 63 is arranged on the outer wall of the mounting seat 40; waterproofing between the mount 40 and the pipe main body 80 is achieved by the second waterproof ring 63.

The mounting base 40 is connected to the apparatus by a second detachable structure 64.

The second detachable structure 64 is provided as a second threaded connection.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.

Claims

1. Pressure-bearing non-contact optical conduction type temperature measurer, characterized in that:

a pressure-bearing protective case (10) whose outer surface is installed in the fluid pipeline;

the isolation layer (20) is arranged in the pressure-bearing type protective shell (10), and a detection cavity (21) penetrating through the isolation layer (20) is formed in the isolation layer (20);

the light sensing unit (31) of the thermopile sensor (30) is coaxially arranged at one end of the detection cavity (21) and is electrically connected with the electric control component, and the thermopile sensor (30) can detect the temperature of the fluid on the surface of the pressure-bearing protective shell (10) through the detection cavity (21) when the fluid contacts with the outer wall of the pressure-bearing protective shell (10).

2. The pressure-bearing non-contact optical conduction type temperature detector according to claim 1, characterized in that: the isolation layer (20) is provided with a heat insulation cavity (22) communicated with the detection cavity (21), and a light sensing unit (31) of the thermopile sensor (30) is located in the heat insulation cavity (22).

3. The pressure-bearing non-contact optical conduction type temperature detector according to claim 1, characterized in that: the pressure-bearing protective shell (10) is made of quartz glass or PC with high light transmittance.

4. The pressure-bearing non-contact optical conduction type temperature detector according to claim 1, characterized in that: the pressure-bearing protective shell (10) is made of a metal material, and a dark color or black coating is arranged on the surface of the metal material.

5. The pressure-bearing non-contact optical conduction type temperature detector according to claim 4, characterized in that: the pressure-bearing protective shell (10) is made of copper, silver or stainless steel.

6. The pressure-bearing non-contact optical conduction type temperature detector according to claim 1, characterized in that: the isolation layer (20) is made of silica gel.

7. The pressure-bearing non-contact optical conduction type temperature detector according to claim 1, characterized in that: the isolation layer (20) is made of plastic.

8. Fluid automation constant temperature adjusting device, its characterized in that: comprising the pressure-bearing non-contact optical conduction temperature detector of any one of claims 1-7.