CN209841221U - Probe for thermosensitive sensor - Google Patents

Abstract

The utility model discloses a heat-sensitive sensor is with probe belongs to temperature sensor technical field. The utility model discloses a heat conduction telescopic bucket, the open end fit-in of heat conduction telescopic bucket has the sliding sleeve, and sliding sleeve and heat conduction telescopic bucket link up and form an open cavity, are equipped with thermal energy spare, first cylinder and second cylinder from the bottom plate of heat conduction telescopic bucket to the open end in proper order in this cavity, and the surface of heat conduction telescopic bucket is equipped with the heat conduction fin. The utility model discloses an increase probe heat conduction and conductivity to carry out the abrasionproof according to corresponding material and decrease the protection, and then improve the sensitivity and the life of probe.

Description

Probe for thermosensitive sensor

Technical Field

The utility model belongs to the technical field of temperature sensor, especially, relate to a heat sensitive sensor is with probe.

Background

A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. The temperature sensor is the core part of the temperature measuring instrument and has a plurality of varieties. The temperature sensor can be divided into two types of contact and non-contact according to the measuring mode, and is divided into two types of thermal resistance and thermocouple according to the characteristics of sensor materials and electronic elements, and compared with the sensor designed according to the metal expansion principle, the temperature sensor needs a monitoring device with higher precision when a metal rod or a metal pipe is used as a probe due to lower expansion coefficient of metal, namely poorer sensitivity, so that the cost of the temperature sensor is correspondingly increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature sensing is probe for sensor, through increasing probe heat conduction and conductivity to carry out the abrasionproof according to corresponding material and decrease the protection, and then improve the sensitivity and the life of probe.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a heat sensing sensor is with probe, including heat conduction cover bucket, the open end fit in of heat conduction cover bucket has the sliding sleeve, sliding sleeve and heat conduction cover bucket link up and form an open cavity, are equipped with thermal energy spare, first cylinder and second cylinder from the bottom plate of heat conduction cover bucket to the open end in proper order in this cavity, the surface of heat conduction cover bucket is equipped with the heat conduction fin.

Further, the heat-conducting sleeve barrel is a stepped barrel and comprises a first barrel section and a second barrel section, the thermal expansion piece is matched in the first barrel section, and one end of the sliding sleeve is matched in the second barrel section.

Further, the thermal expansion member is a paraffin column.

Further, the heat conduction sleeve is a red copper heat conduction sleeve.

Further, it has first ring channel to open on the ladder face of ladder bucket, the terminal surface of sliding sleeve still is equipped with the second ring channel, be equipped with first gasket between the ladder face of sliding sleeve and ladder bucket, the two sides of first gasket all is equipped with the turn-ups, and two turn-ups cooperate respectively in first ring channel and second ring channel, the two sides of first gasket offset with the terminal surface of thermal expansion spare and first cylinder respectively.

Further, the sliding sleeve comprises a first cylinder section, a second cylinder section and a third cylinder section, wherein a first cylinder is matched in the first cylinder section, a second cylinder is matched in the third cylinder section, a second gasket is filled between the first cylinder and the second cylinder, and the second gasket is matched in the second cylinder section.

Furthermore, the first cylinder section comprises a conical hole section and a circular hole section, the first cylinder is a rubber cylinder formed by a conical section and a cylindrical section, the conical section is matched in the conical hole section, and the cylindrical section is matched in the circular hole section.

Furthermore, the sliding sleeve is sleeved with an outer sleeve, one end of the second column body extends out of the sliding sleeve, a sleeve head is arranged inside one end of the outer sleeve, and the sleeve head is wrapped on the annular groove of the extending section of the second column body.

The utility model discloses following beneficial effect has:

the utility model discloses simple structure, high durability and convenient use, the heat conduction end of probe is the red copper sheathing, and be equipped with the fin at the red copper sheathing, increase the heat conductivility of tip when increasing probe tip mechanical strength, the good paraffin of equipment thermal energy is adorned to its heat conduction cover bucket, make the sensitivity of this temperature sensor probe, it is at first cylinder, it avoids producing the looks mutual friction between the cylinder to be equipped with the gasket between the second cylinder, improve the life of device, paraffin is responsible for first gasket when packing into and is sealed, prevent that paraffin from softening from getting into the inside phenomenon that causes the probe to become invalid of sliding sleeve.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of a probe;

FIG. 2 is a half-sectional view of a heat-conducting sleeve and a paraffin column;

FIG. 3 is a cross-sectional view of a thermally conductive sleeve and paraffin column;

FIG. 4 is a block diagram of the sliding sleeve;

in the drawings, the components represented by the respective reference numerals are listed below:

1-heat-conducting sleeve barrel, 2-first gasket, 3-sliding sleeve, 4-first cylinder, 5-second gasket, 6-outer sleeve, 7-second cylinder, 8-thermal expansion piece, 101-heat-conducting fin, 102-first barrel section, 103-first annular groove, 104-second barrel section, 301-second annular groove, 302-first barrel section, 303-second barrel section and 304-third barrel section.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention relates to a probe for a thermal sensor, comprising a heat-conducting sleeve barrel 1, a sliding sleeve 3 is fitted in an open end of the heat-conducting sleeve barrel 1, the sliding sleeve 3 and the heat-conducting sleeve barrel 1 are communicated to form an open cavity, a thermal expansion member 8, a first cylinder 4 and a second cylinder 7 are sequentially disposed in the cavity from a bottom plate of the heat-conducting sleeve barrel 1 to the open end, the second cylinder 7 is a metal cylinder, wherein the thermal expansion member 8 is a paraffin column, the heat-conducting sleeve barrel 1 is a metal sleeve, preferably a red copper heat-conducting sleeve is adopted, the wall thickness of the red copper heat-conducting sleeve is 1-10mm, the paraffin column is installed in the red copper heat-conducting sleeve, and a heat-conducting fin 101 is disposed on a surface of the heat-conducting sleeve barrel 1, the heat-conducting fin 101 is also selected from red copper, the mechanical strength of the red copper sleeve is increased by the heat-conducting fin 101, and the contact area between, the sensitivity of the probe to temperature is increased, wherein when the heat conducting sleeve 1 transfers the external temperature to the paraffin column in the heat conducting sleeve, through the good thermal expansion coefficient of the paraffin, when the paraffin is heated and expanded, acting force is generated on the first cylinder 4 and acts on the second cylinder 7 through the first cylinder 4, the position of the second cylinder 7 is changed, namely, the linear expansion of the paraffin is converted into an output signal, and the temperature is set in the processor through the change of the second cylinder 7.

The first cylinder 4 is a rubber plunger, the distance of the paraffin column deformed by heating is transmitted to the second cylinder 7 through the rubber plunger, and the second cylinder 7 is a steel column.

Wherein, heat conduction barrel set 1 is the ladder bucket, this ladder bucket includes first bucket segment 102 and second bucket segment 104, thermal energy spare 8 cooperation is in first bucket segment 102, the one end cooperation of sliding sleeve 3 is in second bucket segment 104, it has first ring channel 103 to open on the ladder face of ladder bucket, the terminal surface of sliding sleeve 3 still is equipped with second ring channel 301, be equipped with first gasket 2 between the ladder face of sliding sleeve 3 and ladder bucket, first gasket 2 is the rubber sheet, the two sides of first gasket 2 all are equipped with the turn-ups, two turn-ups cooperate respectively in first ring channel 103 and second ring channel 301, the two sides of first gasket 2 offset with the terminal surface of thermal energy spare 8 and first cylinder 4 respectively, then guarantee that paraffin can be stable through first gasket 2 and install and can not overflow at heat conduction sleeve 1.

Wherein, the sliding sleeve 3 comprises a first barrel section 302, a second barrel section 303 and a third barrel section 304, wherein, the first cylinder 4 is matched in the first barrel section 302, the second cylinder 7 is matched in the third barrel section 304, a second gasket 5 is added between the first cylinder 4 and the second cylinder 7, the second gasket 5 is matched in the second barrel section 303, wherein the second gasket 5 is a wear-resistant silica gel sheet, the second cylinder 7 and the first cylinder 4 are prevented from contacting and rubbing by the wear-resistant sheet, and the first cylinder 4, namely the rubber column, is prevented from being worn.

Wherein, the cover is equipped with overcoat 6 on the sliding sleeve 3, and this overcoat 6 is a rubber sleeve, and sliding sleeve 3 is stretched out to the one end of second cylinder 7, and the inside pullover that is equipped with inwards buckling of one end of overcoat 6, this pullover cladding are on the annular groove of the section that stretches out of second cylinder 7.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (8)

1. A probe for a thermosensitive sensor, characterized in that: including heat conduction cover bucket (1), the open end fit-in of heat conduction cover bucket (1) has sliding sleeve (3), sliding sleeve (3) and heat conduction cover bucket (1) link up and form an open cavity, are equipped with thermal energy spare (8), first cylinder (4) and second cylinder (7) from the bottom plate to the open end of heat conduction cover bucket (1) in proper order in this cavity, the surface of heat conduction cover bucket (1) is equipped with heat conduction fin (101).

2. The probe for a temperature-sensitive sensor according to claim 1, wherein the heat-conductive sleeve (1) is a stepped sleeve comprising a first sleeve section (102) and a second sleeve section (104), the thermal expansion member (8) is fitted in the first sleeve section (102), and one end of the sleeve (3) is fitted in the second sleeve section (104).

3. A probe for a heat-sensitive sensor according to claim 1 or 2, wherein the thermal expansion member (8) is a paraffin column.

4. The probe for a heat-sensitive sensor according to claim 1 or 2, wherein the heat-conducting sleeve barrel (1) is a red copper heat-conducting sleeve.

5. The probe for the thermosensitive sensor according to claim 2, wherein a first annular groove (103) is formed in the stepped surface of the stepped barrel, a second annular groove (301) is further formed in the end surface of the sliding sleeve (3), a first gasket (2) is arranged between the sliding sleeve (3) and the stepped surface of the stepped barrel, flanges are arranged on two sides of the first gasket (2), the two flanges are respectively matched in the first annular groove (103) and the second annular groove (301), and two sides of the first gasket (2) are respectively abutted against the end surfaces of the thermal expansion member (8) and the first cylinder (4).

6. The probe for a temperature-sensitive sensor according to claim 1, wherein the sliding sleeve (3) comprises a first barrel section (302), a second barrel section (303) and a third barrel section (304), wherein the first cylinder (4) is fitted in the first barrel section (302), the second cylinder (7) is fitted in the third barrel section (304), and a second gasket (5) is inserted between the first cylinder (4) and the second cylinder (7), and the second gasket (5) is fitted in the second barrel section (303).

7. The probe for a heat-sensitive sensor according to claim 6, wherein the first cylinder section (302) comprises a conical bore section and a circular bore section, and the first cylinder (4) is a rubber cylinder formed of a conical section and a cylindrical section, the conical section being fitted in the conical bore section and the cylindrical section being fitted in the circular bore section.

8. The probe for the thermal sensor according to claim 1, wherein the sliding sleeve (3) is sleeved with an outer sleeve (6), one end of the second column body (7) extends out of the sliding sleeve (3), and a sleeve head is arranged inside one end of the outer sleeve (6) and covers the annular groove of the extending section of the second column body (7).