Quick-response high-stability temperature sensor

Abstract

The utility model discloses a quick-response high-stability temperature sensor which comprises a transmitter module, the lower end of the transmitter module is fixedly connected with a detection rod, the lower end of the detection rod is provided with an installation kit, the bottom of the installation kit is provided with an upper groove, the interior of the upper groove is in threaded connection with a lower fixing piece, and the center of the lower fixing piece is provided with a temperature probe in a penetrating mode. An upper groove is formed in the top of the upper fixing piece, a lower groove is formed in the top of the lower fixing piece, a limiting ring is arranged on the outer side of the temperature probe, the limiting ring is located in the lower groove, the temperature probe is sleeved with a spring, one end of the spring is connected with the limiting ring in an abutting mode, and the other end of the spring is connected with the upper groove in an abutting mode. One end of the spring abuts against the limiting ring, the other end of the spring abuts against the upper groove, when the temperature probe is pressed down and makes contact with an object, the spring is compressed, deformation or damage of the temperature probe caused by excessive pressing is avoided, and therefore the use stability of equipment is improved, and the service life of the equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature sensor technical field, concretely is a kind of fast response high stability temperature sensor. BACKGROUND

[0002] Temperature sensor is a kind of electronic device that temperature signal is converted into electric signal, is widely used in industry, medical treatment, household appliance etc., and its working principle is based on thermoelectric effect, thermal resistance effect or semiconductor characteristic etc.

[0003] The temperature sensor of the prior art has the problems of high cost and short service life. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of fast response high stability temperature sensor to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of fast response high stability temperature sensor, including transmitter module, the lower end of the transmitter module is fixedly connected with probe rod, the lower end of the probe rod is equipped with installation kit, the bottom of the installation kit is equipped with upper groove, the inside of the upper groove is threadedly connected with lower fixed part, the center of the lower fixed part is equipped with temperature probe, the top of the lower fixed part is equipped with lower groove, the outside of the temperature probe is equipped with limit ring, the limit ring is located in lower groove, the temperature probe is equipped with spring, one end of the spring is in abutment with limit ring, the other end is in abutment with upper groove.

[0007] Further, the temperature probe includes shell, the bottom of the inside of the shell is placed with thermistor, the upper end of the thermistor is connected with wire, and the wire is electrically connected with transmitter module, the outside of the thermistor is filled with heat-conducting glue.

[0008] Further, the top of the shell is inserted with cover, the cover is equipped with through hole, and the through hole is used for the passage of wire.

[0009] Further, the outside of the cover is equipped with sealing ring, and the sealing ring is interference-fitted with the inner wall of the shell.

[0010] Further, the shell is made of stainless steel material.

[0011] The utility model has the advantages that:

[0012] The utility model discloses a mounting kit is equipped with the upper recess, the inside screw thread connection of upper recess has lower fixed part, the center of lower fixed part is equipped with the temperature probe, and the top of lower fixed part is equipped with lower recess, and the outside of temperature probe is equipped with the limit ring, and the limit ring is located in lower recess, and the spring is covered to temperature probe, and one end of spring and limit ring abut, and the other end and upper recess abut, when temperature probe is pressed down and contacts with object, because the pressure effect will move upward, limit ring will also go up along with this, lead to spring is compressed, and the spring after compression will exert the force that continuously goes down to limit ring, guarantee temperature probe can accurately contact with object, help to improve the accuracy of temperature measurement, and, avoid the deformation or damage of temperature probe because of overpressing, thereby prolong the use stability and service life of temperature sensor. When temperature probe needs maintenance or is damaged, twist out lower fixed part, can maintain or replace temperature probe.

[0013] Other features and advantages of the utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The utility model discloses a whole structure diagram.

[0015] Fig. 2 The utility model discloses a local sectional view.

[0016] Reference signs: 1, transmitter module;2, detection rod;3, mounting kit;31, upper recess;4, lower fixed part;41, lower recess;5, temperature probe;6, limit ring;7, spring;51, shell;52, thermistor;53, wire;54, heat-conducting adhesive;55, cover;56, through hole;57, sealing ring. DETAILED DESCRIPTION

[0017] The technical scheme in the utility model embodiment will be described clearly and completely in conjunction with the drawings in the utility model embodiment.

[0018] Please refer to Figs. 1-2 ;

[0019] The utility model provides a kind of fast response high stability temperature sensor, including transmitter module 1, the lower end of transmitter module 1 is fixedly connected with detection rod 2, and the lower end of detection rod 2 is equipped with mounting kit 3, and mounting kit 3 is equipped with upper groove 31, and the inside of upper groove 31 is threadedly connected with lower fixed part 4, and the center of lower fixed part 4 is equipped with temperature probe 5, and temperature probe 5 can be moved up and down, and temperature probe 5 is contacted with object, to measure the temperature of object, and the top of lower fixed part 4 is equipped with lower groove 41, and the outside of temperature probe 5 is equipped with limit ring 6, and limit ring 6 is located in lower groove 41, and temperature probe 5 is sheathed with spring 7, and one end of spring 7 is abutted with limit ring 6, and the other end is abutted with upper groove 31, when temperature probe 5 is pressed down and contacted with object, because of the pressure effect, it will move upwards, at this time, limit ring 6 will also rise, resulting in spring 7 being compressed, and the spring 7 after compression will exert continuous downward force on limit ring 6, to ensure that temperature probe 5 can accurately contact with object, to help improve the accuracy of temperature measurement, and at the same time, avoid the deformation or damage of temperature probe 5 caused by excessive pressing, to prolong the use stability and service life of equipment. When temperature probe 5 needs maintenance or is damaged, lower fixed part 4 is screwed out, and temperature probe 5 can be maintained or replaced.

[0020] In the embodiment, the temperature probe 5 includes a shell 51, a thermistor 52 is placed on the inner bottom of the shell 51, a wire 53 is connected to the upper end of the thermistor 52, and the wire 53 is electrically connected to the transmitter module 1, a heat-conducting glue 54 is filled on the outer side of the thermistor 52, when the temperature probe 5 is used to test the temperature of an object, the temperature of the surface of the object is first directly contacted and sensed by the temperature probe 5, then the temperature is rapidly conducted to the thermistor 52 through the heat-conducting glue 54, due to the characteristics of the thermistor 52, the resistance value will change accordingly with the change of temperature, and the change of resistance value will be transmitted to the transmitter module 1 through the wire 53, and the circuit inside the transmitter module 1 will convert the resistance value change into readable temperature information, so that the temperature of the object can be accurately determined.

[0021] In the embodiment, a cover 55 is inserted into the top of the shell 51, the cover 55 is provided with a through hole 56 for the wire 53 to pass through, and the cover 55 can arrange the two wires 53 separately to avoid winding during use.

[0022] In the embodiment, a sealing ring 57 is provided on the outer side of the cover 55, and the sealing ring 57 is in interference fit with the inner wall of the shell 51, to ensure that the cover 55 can be stably fixed at the upper end of the shell 51, to prevent it from falling easily, and to seal the shell 51 to avoid the heat-conducting glue 54 from flowing out when the temperature sensor is inverted.

[0023] In the embodiment, the shell 51 is made of stainless steel material, which can quickly transfer heat and also protect the heat-conducting glue 54 inside, to prolong the service life of the temperature probe 5.

[0024] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, but that the application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments should, therefore, be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalents of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims concerned.

[0025] Furthermore, it should be understood that although the present specification describes exemplary embodiments, the application is not limited to only one independent technical solution in each embodiment, and the specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that a person skilled in the art can understand.

Claims

1. A fast-response, high-stability temperature sensor, comprising a transmitter module (1), wherein a probe rod (2) is fixedly connected to the lower end of the transmitter module (1), characterized in that, The probe rod (2) is provided with an installation kit (3) at its lower end. The installation kit (3) has an upper groove (31) at its bottom. The upper groove (31) is threaded with a lower fixing member (4). A temperature probe (5) is inserted through the center of the lower fixing member (4). The lower fixing member (4) has a lower groove (41) at its top. A limiting ring (6) is provided on the outside of the temperature probe (5). The limiting ring (6) is located inside the lower groove (41). A spring (7) is sleeved on the temperature probe (5). One end of the spring (7) abuts against the limiting ring (6), and the other end abuts against the upper groove (31).

2. The fast-response, high-stability temperature sensor according to claim 1, characterized in that, The temperature probe (5) includes a housing (51), a thermistor (52) is placed on the bottom of the inner side of the housing (51), a wire (53) is connected to the upper end of the thermistor (52), and it is electrically connected to the transmitter module (1) through the wire (53). The outer side of the thermistor (52) is filled with thermally conductive adhesive (54).

3. The fast-response, high-stability temperature sensor according to claim 2, characterized in that, The top of the outer casing (51) is fitted with a cover (55), and the cover (55) has a through hole (56) for the wire (53) to pass through.

4. A fast-response, high-stability temperature sensor according to claim 3, characterized in that, The outer side of the cover (55) is provided with a sealing ring (57), and the sealing ring (57) is interference-fitted with the inner wall of the outer shell (51).

5. A fast-response, high-stability temperature sensor according to claim 2, characterized in that, The outer casing (51) is made of stainless steel.

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