CN214121443U

CN214121443U - High-precision temperature sensor

Info

Publication number: CN214121443U
Application number: CN202022846836.7U
Authority: CN
Inventors: 李纯井
Original assignee: Individual
Current assignee: Wuxi Xianke automation equipment Co.,Ltd.
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-09-03
Anticipated expiration: 2030-12-01

Abstract

The utility model relates to a high accuracy temperature sensing equipment technical field provides a high accuracy temperature sensor, including ceramic package, the wire rod of setting in ceramic package, the one end of wire rod grafting in ceramic package is connected with a plurality of thermistors, still includes the top cap, and the top cap screw thread is pegged graft in ceramic package. The utility model overcomes prior art's is not enough, reasonable in design, and compact structure has solved current temperature sensor temperature measurement precision poor, the slow problem of thermoinduction speed, the utility model discloses a simple structural grouping replaces traditional metal casing through ceramic material, can improve measurement accuracy and induction efficiency, has improved the area of contact of thermistor with external medium simultaneously, has improved measurement effect, has improved fixed effect moreover, prevents that shell and wire rod from droing, improves overall stability, has very strong practicality.

Description

High-precision temperature sensor

Technical Field

The utility model relates to a high accuracy temperature sensing equipment technical field, concretely relates to high accuracy temperature sensor.

Background

Temperature sensor, because the difference that temperature sensing shell structural style and material chose for use, temperature sensor temperature measurement precision is inaccurate often appears, thermal induction speed slows down, the phenomenon that the reliability becomes low, at temperature sensor actual production, assembly, transportation, move and storage in-process, if temperature sensing shell structural style or material choose for use improperly, can make temperature sensing shell and thermistor appear the not hard up to a certain extent, the displacement, drop, insulating badly, sealed not tight, the phenomenon such as wet by the tide, under the serious condition, thermistor and temperature sensing shell separation's phenomenon also probably appears, thereby lead to the sensitivity of sensor to the temperature to the step-down, the temperature measurement precision is inaccurate, thermal induction speed slows down, reliability and life reduce.

To this end, we propose a high precision temperature sensor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a high accuracy temperature sensor has overcome the not enough of prior art, reasonable in design, and compact structure has solved current temperature sensor temperature measurement precision poor, the slow problem of thermoinduction speed, the utility model discloses a simple structure combination replaces traditional metal casing through ceramic material, can improve measurement accuracy and response efficiency, has improved the area of contact of thermistor with external medium simultaneously, has improved measurement effect, has improved fixed effect moreover, prevents that shell and wire rod from droing, improves overall stability, has very strong practicality.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a high accuracy temperature sensor, includes ceramic package, sets up the wire rod in ceramic package, and the one end of wire rod grafting in ceramic package is connected with a plurality of thermistors, still includes the top cap, and the top cap screw thread is pegged graft in ceramic package and is separated thermistors and the external world, be provided with on the top cap with the corresponding arc arch of thermistors.

Furthermore, a sealing glue is arranged at the joint of the ceramic shell and the wire.

Furthermore, a plurality of thin wires are connected to the inner wall of the ceramic shell, and the other ends of the thin wires are detachably tied to the inner wall of the top cover.

Further, the thin wire is replaced with a metal wire.

Furthermore, the arc-shaped protrusions are made of ceramic glue.

(III) advantageous effects

The embodiment of the utility model provides a high accuracy temperature sensor is provided. The method has the following beneficial effects:

1. through the ceramic top cover that sets up threaded connection, can easy to assemble and dismantle, also can maintain the change to thermistor simultaneously, set up the top cover simultaneously and also can support ceramic package, improve ceramic package's resistance to compression effect.

2. Through setting up ceramic package and improving traditional metal casing, can improve measurement accuracy, improve thermoinduction's efficiency simultaneously.

3. The material of arc arch 3.1 is ceramic glue, and ceramic glue is a glue that is used for bonding pottery, is current structure, with its solidification shaping after, can form the material that the temperature sensing effect is very good, can contact with thermistor 4, can improve heat-conduction effect, can improve the precision.

4. Through setting up the fine rule, when the top cap rotated, the lateral wall of wire rod can be twined to the fine rule, can improve fixed effect, improved the connection effect of ceramic package and wire rod to prevent to drop.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the sectional structure of the present invention.

In the figure: the ceramic heat-insulation wire comprises a ceramic shell 1, a wire 2, a top cover 3, an arc-shaped bulge 3.1, a thermistor 4, a thin wire 5 and a sealant 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, a high-precision temperature sensor includes a ceramic case 1, and the measurement precision can be improved by providing the ceramic case 1 to improve the conventional metal case, meanwhile, the efficiency of thermal induction is improved, the wire 2 arranged in the ceramic shell 1, one end of the wire 2 inserted in the ceramic shell 1 is connected with a plurality of thermistors 4, and through the relationship between the thermistors 4 and the temperature, can measure temperature signals and transmit the temperature signals to corresponding equipment through a wire 2, and also comprises a top cover 3, the top cover 3 is inserted in the ceramic shell 1 in a threaded manner and separates the thermistor 4 from the outside, the top cover 3 connected with the threads can be conveniently installed and detached, meanwhile, the thermistor 4 can be maintained and replaced, and the top cover 3 can also support the ceramic shell 1, so that the compression resistance effect of the ceramic shell 1 is improved.

Arc-shaped bulges 3.1 corresponding to the thermistors 4 are arranged on the top cover 3, and the contact area between the thermistors 4 and the outside can be increased and the measurement precision is improved by arranging the arc-shaped bulges 3.1.

In this embodiment, as shown in fig. 2, a sealant 6 is disposed at a joint between the ceramic case 1 and the wire 2, and the sealant 6 can improve an isolation effect and prolong a service life.

In this embodiment, as shown in fig. 2, a plurality of thin wires 5 are connected to the inner wall of the ceramic case 1, the other end of the thin wire 5 is detachably fastened to the inner wall of the top cover 3, and by providing the thin wire 5, when the top cover 3 rotates, the thin wire 5 is wound around the side wall of the wire 2, so that the fixing effect can be improved, the connection effect between the ceramic case 1 and the wire 2 is improved, and the wire 2 is prevented from falling off.

In this embodiment, the thin wire 5 is replaced with a wire, and the winding effect can be improved by providing the wire.

In this embodiment, the material of the arc-shaped protrusion 3.1 is ceramic glue, which is a glue for bonding ceramics, and is an existing structure, and after the ceramic glue is cured and molded, a material with a very good temperature sensing effect can be formed, and the ceramic glue can be in contact with the thermistor 4, so that the heat conduction effect can be improved, and the precision can be improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a high accuracy temperature sensor, includes ceramic package, sets up the wire rod in ceramic package, and the one end of wire rod grafting in ceramic package is connected with a plurality of thermistors, its characterized in that: the ceramic thermistor is characterized by further comprising a top cover, wherein the top cover is inserted into the ceramic shell in a threaded mode and separates the thermistor from the outside, and an arc-shaped bulge corresponding to the thermistor is arranged on the top cover.

2. A high accuracy temperature sensor as defined in claim 1, wherein: and a sealant is arranged at the joint of the ceramic shell and the wire.

3. A high accuracy temperature sensor as defined in claim 1, wherein: the inner wall of the ceramic shell is connected with a plurality of thin wires, and the other ends of the thin wires are detachably tied on the inner wall of the top cover.

4. A high accuracy temperature sensor as defined in claim 3, wherein: the thin wire is replaced with a metal wire.

5. A high accuracy temperature sensor as defined in claim 1, wherein: the arc-shaped protrusions are made of ceramic glue.