CN209910844U

CN209910844U - Multifunctional sensor

Info

Publication number: CN209910844U
Application number: CN201920950757.5U
Authority: CN
Inventors: 徐建奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-01-07
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a multifunctional sensor relates to the sensor field, including the electric wire, the one end of electric wire is provided with NTC resistance, and NTC resistance's the outside is provided with fixed filling layer, and the outside of fixed filling layer is provided with the protection filling layer, and the outside of protection filling layer is provided with the shell, and the laminating is connected with the magnet piece on one side inner wall of shell, the other end fixedly connected with connector of electric wire, and the inside of connector is provided with the terminal. The utility model discloses a be provided with in NTC resistance's the outside and envelope epoxy glue film and embedment epoxy glue film, embedment epoxy glue film has played the effect of dual protection to NTC resistance with enveloping the epoxy glue film, avoids the inside of external liquid or steam entering sensor, causes the damage to NTC resistance, can not influence NTC resistance's detection precision, is provided with the shell that stainless steel material made in the outside of protection filling layer, and the shell has played certain guard action to NTC resistance.

Description

Multifunctional sensor

Technical Field

The utility model relates to a sensor field, in particular to multifunctional sensor.

Background

A temperature sensor (temperature transducer) refers to a sensor that senses temperature and converts it into a usable output signal. The existing temperature sensor test environment has certain limitations. For example, only a waterproof head can be selected for liquid measurement, only an air head can be selected for gas measurement, only a magnetic probe can be selected for gas measurement, and one temperature sensor is required to be adsorbed on the surface of an ironware, so that the temperature sensor is not suitable for all test environments. Therefore, it is necessary to invent a multifunctional sensor to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multifunctional sensor 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: the utility model provides a multifunctional sensor, includes the electric wire, the one end of electric wire is provided with NTC resistance, NTC resistance's the outside is provided with fixed filling layer, the outside of fixed filling layer is provided with the protection filling layer, the outside of protection filling layer is provided with the shell, the laminating is connected with the magnet piece on one side inner wall of shell, the magnet piece is inlayed in the inside of protection filling layer, the other end fixedly connected with connector of electric wire, the inside of connector is provided with the terminal, the terminal is connected with the electric wire electricity.

Preferably, the fixed filling layer is an encapsulating epoxy glue layer, and the protective filling layer is a potting epoxy glue layer.

Preferably, the fixed filling layer is arranged to be a conical structure, the end part of the fixed filling layer is arranged to be a smooth surface, and the NTC resistor is embedded in the fixed filling layer.

Preferably, the fixed filling layer is in adhesive connection with the protective filling layer, the protective filling layer is in adhesive connection with the shell, and the magnet block is in adhesive connection with the protective filling layer.

Preferably, the number of the electric wires is two, the two electric wires are connected in a fitting manner, one ends of the two electric wires are connected with the NTC resistor through pins, and the other ends of the two electric wires are electrically connected with the two terminals respectively.

Preferably, the housing is made of stainless steel material, and the cross section of the housing is arranged in a fan-shaped structure, and the magnet blocks are located at the cross section of the fan-shaped structure.

The utility model discloses a technological effect and advantage:

the utility model discloses a be provided with fixed filling layer and protection filling layer in NTC resistance's the outside, fixed filling layer sets up to encapsulating epoxy glue film, the protection filling layer sets up to encapsulating epoxy glue film, encapsulating epoxy glue film has played the effect of dual protection to NTC resistance with encapsulating epoxy glue film, avoid the inside that external liquid or steam got into the sensor, cause the damage to NTC resistance, can not influence NTC resistance's detection precision, be provided with the shell that stainless steel material made in the outside of protecting the filling layer, the shell has played certain guard action to NTC resistance, be provided with the magnet piece in the shell, the magnet piece can adsorb this device on ironware surface, prevent that the sensor from droing, the precision of detection has been increased.

Drawings

Fig. 1 is a schematic sectional view of the structure of the present invention.

Fig. 2 is a schematic side sectional view of the shell structure of the present invention.

In the figure: 1. an electric wire; 2. an NTC resistor; 3. fixing the filling layer; 4. a protective filling layer; 5. a housing; 6. a magnet block; 7. a connector; 8. and a terminal.

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.

The utility model provides a multifunctional sensor as shown in figures 1-2, which comprises two wires 1, wherein the two wires 1 are connected in a laminating way, and the two wires 1 play a role in communication, so that elements are electrically connected with each other;

one end of each of the two wires 1 is connected with the NTC resistor 2 through a pin, the resistance of the NTC resistor 2 changes along with the change of temperature and is used for detecting the temperature change of gas, liquid and solid, and in addition, the type of the NTC resistor 2 is as follows: the NTC resistor with the resistance value of 10K, B of 3950 and the precision of 1 percent can be selected according to different application scenes, the NTC resistor 2 is embedded in the fixed filling layer 3, the fixed filling layer 3 is set to be an encapsulating epoxy glue layer, the encapsulating epoxy glue layer has a fixing effect on the NTC resistor 2, the NTC resistor 2 is prevented from moving, the temperature measurement precision and the response speed are prevented from being influenced, and meanwhile, the preliminary moisture-proof and waterproof effects are achieved,

specifically, the fixed filling layer 3 is set to be in a conical structure, and the end part of the fixed filling layer 3 is set to be a smooth surface, so that the NTC resistor 2 can be completely wrapped inside, the NTC resistor 2 is prevented from contacting the outside, and the safety of the NTC resistor 2 is improved;

the outer side of the fixed filling layer 3 is provided with a protective filling layer 4, the fixed filling layer 3 is in adhesive connection with the protective filling layer 4, the protective filling layer 4 is arranged to be an encapsulation epoxy adhesive layer, the encapsulation epoxy adhesive layer plays a role in further moisture prevention and water prevention, the fixed filling layer 3 is matched to prevent external liquid or vapor in air from entering the shell 5, damage is caused to the NTC resistor 2, the outer side of the protective filling layer 4 is provided with the shell 5, the protective filling layer 4 is in adhesive connection with the shell 5, the shell 5 is made of stainless steel materials, the cross section of the shell 5 is arranged to be a fan-shaped structure, a magnet block 6 is connected to the inner wall of one side of the shell 5 in an attaching mode, the device can be fixed on the surface of an ironware in an attaching mode due to the arrangement of the magnet block 6, the sensor is prevented from falling off;

in addition, shell 5 mainly is used for fixing NTC resistance 2 and magnet piece 6, play certain guard action to NTC resistance 2 simultaneously, avoid NTC resistance 2 to receive the damage because of external force, and magnet piece 6 inlays in the inside of protection filling layer 4, and

magnet piece

6 and 4 adhesive bonding of protection filling layer are connected, 4 cooperation shells 5 of protection filling layer can play fixed spacing effect to magnet piece 6, the other end fixedly connected with connector 7 of electric wire 1, the inside of connector 7 is provided with terminal 8, the other end of two electric wires 1 is connected with two terminals 8 electricity respectively, connector 7 with install the public seat cooperation on the circuit board, make things convenient for the plug.

This practical theory of operation:

when the device is used for detecting gas or liquid, firstly, the connector 7 is in plug connection with the male seat, the NTC resistor 2 is electrified, then one end with the NTC resistor 2 is inserted into the gas or liquid, then the temperature of the gas or liquid is determined according to the resistance change of the NTC resistor 2, wherein the encapsulating epoxy glue layer and the encapsulating epoxy glue layer play a role in double protection, the phenomenon that external liquid or vapor enters the sensor to damage the NTC resistor 2 is avoided, the detection precision of the NTC resistor 2 cannot be influenced, when the device needs to detect the temperature of an ironware urgently, one side with the magnet block 6 is aligned to the ironware, the magnet block 6 drives the sensor to be adsorbed on the surface of the ironware, then the temperature of the surface of the ironware is determined according to the resistance change of the NTC resistor 2, the sensor of the device has wide test range, and can detect the temperatures of the gas, the liquid and the solid, the device can also be adsorbed on the surface of ironware, and has high detection precision and accurate data.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A multifunctional sensor comprising an electric wire (1), characterized in that: the one end of electric wire (1) is provided with NTC resistance (2), the outside of NTC resistance (2) is provided with fixed filling layer (3), the outside of fixed filling layer (3) is provided with protection filling layer (4), the outside of protection filling layer (4) is provided with shell (5), the laminating is connected with magnet piece (6) on one side inner wall of shell (5), magnet piece (6) are inlayed in the inside of protection filling layer (4), the other end fixedly connected with connector (7) of electric wire (1), the inside of connector (7) is provided with terminal (8), terminal (8) are connected with electric wire (1) electricity.

2. A multifunctional sensor as claimed in claim 1, characterized in that: the fixed filling layer (3) is an encapsulating epoxy glue layer, and the protective filling layer (4) is arranged as an encapsulating epoxy glue layer.

3. A multifunctional sensor as claimed in claim 1, characterized in that: the fixed filling layer (3) is set to be a conical structure, the end part of the fixed filling layer (3) is set to be a smooth surface, and the NTC resistor (2) is embedded in the fixed filling layer (3).

4. A multifunctional sensor as claimed in claim 1, characterized in that: fixed filling layer (3) and protection filling layer (4) adhesive connection, protection filling layer (4) and shell (5) adhesive connection, magnet piece (6) and protection filling layer (4) adhesive connection.

5. A multifunctional sensor as claimed in claim 1, characterized in that: the electric wire (1) is provided with two, and two electric wires (1) are laminated and connected, and the one end of two electric wires (1) all is connected with NTC resistance (2) through the pin, and the other end of two electric wires (1) is connected with two terminals (8) electricity respectively.

6. A multifunctional sensor as claimed in claim 1, characterized in that: the shell (5) is made of stainless steel materials, the cross section of the shell (5) is of a fan-shaped structure, and the magnet block (6) is located on the cross section of the fan-shaped structure.