CN209783769U

CN209783769U - High waterproof easy installation type NTC temperature sensor for water heater

Info

Publication number: CN209783769U
Application number: CN201920541587.5U
Authority: CN
Inventors: 周惠明; 瞿佳翔
Original assignee: Changzhou Huichang Sensor Co Ltd
Current assignee: Changzhou Huichang Sensor Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2019-12-13
Anticipated expiration: 2029-04-19

Abstract

The utility model relates to a temperature sensor device field indicates especially that high waterproof easy installation type NTC temperature sensor for water heater. The detection device comprises a detection shell, a stud, a metal shell and a lead assembly which are sequentially connected from left to right; a thermistor is arranged in the detection shell; the lead assembly comprises two leads, one end of the lead assembly is sequentially inserted into the through hole and the stud of the metal shell and connected with the thermistor, and the other end of the lead assembly is connected with the terminal; the radius of the detection shell is smaller than that of the stud; the NTC temperature sensor for the water heater is high in detection accuracy and waterproof and easy to install.

Description

High waterproof easy installation type NTC temperature sensor for water heater

Technical Field

The utility model relates to a temperature sensor device field indicates especially that high waterproof easy installation type is NTC temperature sensor for water heater.

Background

The temperature sensor is a sensor which can sense temperature and convert the temperature into a usable output signal; in a temperature sensor used in a water heater at present, a thermistor is generally directly exposed and mounted at the end part of a stud, so that the temperature sensor is influenced by heat conduction of the stud when detecting water temperature, and the heat conduction is slowed down due to the larger outer diameter of the stud, so that the temperature sensor is usually insensitive to reaction and low in detection precision.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high waterproof easy installation type NTC temperature sensor for water heater that detects the precision height.

The technical scheme of the utility model as follows:

The NTC temperature sensor for the high-waterproof easy-to-install water heater is characterized by comprising a detection shell, a stud, a metal shell and a lead assembly which are sequentially connected from left to right; a thermistor is arranged in the detection shell; the lead assembly comprises two leads, one end of the lead assembly is sequentially inserted into the through hole and the stud of the metal shell and connected with the thermistor, and the other end of the lead assembly is connected with the terminal; the radius of the detection shell is smaller than that of the stud.

And a silica gel ring is arranged between the stud and the metal shell. The waterproof material imported through setting up the silica gel circle like this encapsulates, has improved waterproof performance greatly.

And external threads are arranged on the outer surface of the stud. Through setting up the external screw thread, can be with the card that the silica gel circle is firm between double-screw bolt and metal casing like this for sealed effect is better.

And a self-extinguishing tube is sleeved between the lead wire assembly between the metal shell and the terminal, and the self-extinguishing tube is white. The lead assembly can be better protected by arranging the self-extinguishing tube.

The metal shell is made of a copper nickel plating material. Because the metal shell is plated with nickel by copper, the heat conductivity coefficient is good, so that the response time of detection of the temperature sensor is shorter; preferably, silver is used as the metal shell, and the effect is better.

And a high-temperature-resistant epoxy resin layer is arranged in the through hole of the metal shell. The high-temperature-resistant epoxy resin is arranged to enhance the high-temperature-resistant performance of the metal shell, so that the metal shell is convenient to use in a water heater.

The thermistor is externally wrapped with a waterproof epoxy resin layer. The waterproof performance of the thermistor is enhanced by arranging the waterproof epoxy resin layer.

one side of the metal shell, which is close to the stud, is provided with a groove for placing a silica gel ring. Through setting up the recess, when the installation silica gel circle, be convenient for to silica gel circle prepositioning and spacing.

the utility model has the advantages that: dedicated high waterproof easy NTC temperature sensor for installation type water heater provides temperature sensor's technical support for widening the intelligent development of water heater, improving its efficiency utilization ratio, adopts special construction metal casing and high accuracy component, has following characteristics: 1) the material usage amount is reduced, and the energy is saved and the environment is protected; 2) the installation is easy and the measurement precision is improved; 3) the special structure metal shell and the imported waterproof material are used for packaging, so that the waterproof performance and the response time of the waterproof material can be improved.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

Wherein: FIG. 1 is a schematic structural view of the present invention;

In the attached drawing, 1 is a detection shell, 2 is a stud, 3 is a metal shell, 4 is a lead wire, 5 is a terminal, 6 is a silica gel ring, 7 is an external thread, 8 is a self-extinguishing tube, 9 is a high-temperature epoxy resin layer, and 10 is a groove.

Detailed Description

Referring to fig. 1, the NTC temperature sensor for a highly waterproof easy-to-install water heater is characterized in that a detection housing 1, a stud 2, a metal shell 3 and a lead assembly are connected in sequence from left to right; a thermistor is arranged in the detection shell; the lead assembly comprises two leads 4, one end of the lead assembly is inserted into the through hole and the stud of the metal shell in sequence and is connected with the thermistor, and the other end of the lead assembly is connected with a terminal 5; the radius of the detection shell is smaller than that of the stud. Because install thermistor in detecting the casing and the radius that detects the casing is less than the radius of double-screw bolt, when detecting the temperature like this, owing to reduced the casing external diameter with thermistor contact greatly for heat transfer is faster, and it is higher to detect the precision.

And a silica gel ring 6 is arranged between the stud and the metal shell. The waterproof material imported through setting up the silica gel circle like this encapsulates, has improved waterproof performance greatly.

And the outer surface of the stud is provided with an external thread 7. Through setting up the external screw thread, can be with the card that the silica gel circle is firm between double-screw bolt and metal casing like this for sealed effect is better.

And a self-extinguishing tube 8 is sleeved between the lead wire assembly between the metal shell and the terminal, and the self-extinguishing tube is white. The lead assembly can be better protected by arranging the self-extinguishing tube.

The metal shell is copper nickel plated. Because the metal shell is plated with nickel by copper, the heat conductivity coefficient is good, so that the response time of detection of the temperature sensor is shorter; preferably, silver is used as the metal shell, and the effect is better.

And a high-temperature-resistant epoxy resin layer 9 is arranged in the through hole of the metal shell. The high-temperature-resistant epoxy resin is arranged to enhance the high-temperature-resistant performance of the metal shell, so that the metal shell is convenient to use in a water heater.

And a groove 10 for placing a silica gel ring is formed in one side of the metal shell, which is close to the stud. Through setting up the recess, when the installation silica gel circle, be convenient for to silica gel circle prepositioning and spacing.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.

Claims

1. The NTC temperature sensor for the high-waterproof easy-to-install water heater is characterized by comprising a detection shell, a stud, a metal shell and a lead assembly which are sequentially connected from left to right; a thermistor is arranged in the detection shell; the lead assembly comprises two leads, one end of the lead assembly is sequentially inserted into the through hole and the stud of the metal shell and connected with the thermistor, and the other end of the lead assembly is connected with the terminal; the radius of the detection shell is smaller than that of the stud.

2. The NTC temperature sensor for the water heater of claim 1, wherein a silicone ring is disposed between the stud and the metal housing.

3. The NTC temperature sensor for the water heater of claim 1, wherein the stud has an external thread on its outer surface.

4. The NTC temperature sensor for the water heater of claim 1, wherein a self-extinguishing tube is inserted between the metal case and the lead assembly between the terminals.

5. The NTC temperature sensor for the water heater of claim 1, wherein the metal housing is made of a nickel-plated copper material.

6. The NTC temperature sensor for the water heater of claim 1, wherein a high temperature epoxy resin layer is disposed in the through hole of the metal housing.

7. The NTC temperature sensor for the water heater of claim 1, wherein the thermistor is coated with a waterproof epoxy layer.

8. The NTC temperature sensor for the water heater of claim 2, wherein a groove for placing a silicone ring is disposed on a side of the metal housing close to the stud.