CN204064503U - Temperature sensor and temperature sensing device - Google Patents
Temperature sensor and temperature sensing device Download PDFInfo
- Publication number
- CN204064503U CN204064503U CN201420519096.8U CN201420519096U CN204064503U CN 204064503 U CN204064503 U CN 204064503U CN 201420519096 U CN201420519096 U CN 201420519096U CN 204064503 U CN204064503 U CN 204064503U
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- Prior art keywords
- thermistor
- shell
- temperature detector
- installation sheet
- temperature
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- 238000009434 installation Methods 0.000 claims abstract description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 abstract description 9
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model provides a temperature sensor and temperature sensing device, wherein, this temperature sensor includes: a housing having thermal conductivity; a mounting piece fixedly connected with the inner wall of the shell and having heat conductivity and insulativity; the thermistor is fixed on the mounting sheet, and a lead of the thermistor extends out of the shell; wherein, along the direction of perpendicular to the installation piece, the projection of thermistor is located the installation piece. The utility model provides a temperature sensor, the thermistor can not contact with the shell directly and the thermistor is connected with the shell in an insulation way; the temperature of the measured pipe fitting is transmitted to the thermistor through the shell and the mounting piece, and the mounting piece has thermal conductivity, so that compared with the prior art that the insulating resin insulating thermistor and the shell are adopted, the temperature sensor effectively accelerates the heat transmission, shortens the time for transmitting the temperature of the measured pipe fitting to the thermistor, and improves the sensitivity of the temperature sensor. The utility model provides a temperature sensing device has above-mentioned temperature sensor.
Description
Technical field
The utility model relates to temperature detection technical field, more particularly, relates to a kind of temperature detector and temperature sensing device.
Background technology
In air-conditioning system, need the temperature detecting multiple parts and position, the delivery temperature of such as compressor.At present, adopt the temperature detector detected temperatures such as temperature-sensitive bag or temperature sensor, temperature detector mainly comprises: as the copper pipe of shell, is positioned at the thermistor of copper pipe; Wherein, copper pipe drawn by the lead-in wire of thermistor.
For the temperature detector detecting compressor exhaust temperature, due to the earthing of casing of compressor, require between thermistor and copper pipe, to adopt insulating resin to insulate.Tested pipe fitting transfers heat to thermistor by shell and insulating resin, thus realizes thermometric.Because insulating resin is non-conductive body, cause the temperature of tested pipe fitting to pass to thermistor required time longer, cause the sensitivity of this temperature detector lower.
In addition, temperature detector is fixed on tested pipe fitting by geometrical clamp, usual geometrical clamp is stainless steel shell fragment, the outside surface of geometrical clamp directly contacts with external environment, cause the heat exchange amount of geometrical clamp and external environment larger, make this temperature sensing device occur metrical error, ambient temperature is lower, and metrical error is larger.
In sum, how improving the sensitivity of temperature detector, is current those skilled in the art's problem demanding prompt solution.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of temperature detector, to improve its sensitivity.The purpose of this utility model is to provide a kind of temperature sensing device with above-mentioned temperature detector.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of temperature detector, comprising:
There is the shell of thermal conductivity;
Be fixedly connected with described outer casing inner wall, and there is the installation sheet of thermal conductivity and insulativity;
Be fixed on the thermistor on described installation sheet, the lead-in wire of described thermistor stretches out described shell;
Wherein, along the direction perpendicular to described installation sheet, the projection of described thermistor is positioned at described installation sheet.
Preferably, in above-mentioned temperature detector, described installation sheet is fixed on described shell by the epoxy resin of embedding, and described thermistor is fixed on described installation sheet by the epoxy resin of embedding.
Preferably, in above-mentioned temperature detector, described thermistor is paster thermistor.
Preferably, in above-mentioned temperature detector, the coefficient of heat conductivity of described installation sheet is greater than 1.0W/mK.
Preferably, in above-mentioned temperature detector, described installation sheet is silica gel sheet.
Preferably, in above-mentioned temperature detector, in a tubular form, and described shell has for contacting the cooperation cambered surface coordinated with tested pipe fitting described shell, and described installation sheet is positioned at the described outer casing inner wall position corresponding with described cooperation cambered surface.
Preferably, in above-mentioned temperature detector, described shell is copper pipe or stainless-steel tube.
Based on the above-mentioned temperature detector provided, the utility model additionally provides a kind of temperature sensing device, and temperature sensing device comprises: temperature detector, and described temperature detector is fixed on the geometrical clamp on tested pipe fitting; Wherein, described temperature detector is the temperature detector described in above-mentioned any one.
Preferably, in above-mentioned temperature sensing device, described geometrical clamp comprises: the internal layer with thermal conductivity, is connected and has the skin of heat-resisting quantity with described internal layer; Wherein, described internal layer and described housing contacts, described outer field thermal resistance is greater than 1M Ω.
Preferably, in above-mentioned temperature sensing device, the outer wall top of described geometrical clamp has the location instruction groove for installing.
The temperature detector that the utility model provides, by being fixed on outer casing inner wall by having thermal conductivity with the installation sheet with insulativity, thermistor is fixed on installation sheet, and being positioned at installation sheet along perpendicular to the projection of the direction thermistor of installation sheet, then thermistor directly can not contact with shell and thermistor is connected with casing insulation; The temperature of tested pipe fitting passes to thermistor by shell, installation sheet, because installation sheet has thermal conductivity, the insulating resin thermistor that insulate is adopted to compare with shell with prior art, effectively accelerate the transmission of heat, the temperature shortening tested pipe fitting passes to the time needed for thermistor, thus improves the sensitivity of this temperature detector.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of the temperature detector that Fig. 1 provides for the utility model embodiment;
The use schematic diagram of the temperature sensing device that Fig. 2 provides for the utility model embodiment;
The structural representation of geometrical clamp in the temperature sensing device that Fig. 3 provides for the utility model embodiment.
In upper Fig. 1-Fig. 3:
1 be temperature detector, 11 be shell, 111 for coordinating cambered surface, 12 to be installation sheet, 13 be thermistor, 131 be lead-in wire, 2 be geometrical clamp, 21 for location instruction groove, 22 be internal layer, 23 for outer, 3 be tested pipe fitting.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The temperature detector that the utility model embodiment provides, comprising: the shell 11 with thermal conductivity; Be fixedly connected with shell 11 inwall and there is the installation sheet 12 of thermal conductivity and insulativity; Be fixed on the thermistor 13 on installation sheet 12, the lead-in wire 131 of this thermistor 13 stretches out shell 11; Wherein, along the direction perpendicular to installation sheet 12, the projection of thermistor 13 is positioned at installation sheet 12.
The temperature detector that the utility model provides, by being fixed on the inwall of shell 11 by having thermal conductivity with the installation sheet 12 with insulativity, thermistor 13 is fixed on installation sheet 12, and being positioned at installation sheet 12 along perpendicular to the projection of the direction thermistor 13 of installation sheet 12, then thermistor 13 directly can not contact with shell 11 and thermistor 13 insulate with shell 11 and is connected; The temperature of tested pipe fitting 3 passes to thermistor 13 by shell 11, installation sheet 12, because installation sheet 12 has thermal conductivity, the insulating resin thermistor that insulate is adopted to compare with shell with prior art, effectively accelerate the transmission of heat, the temperature shortening tested pipe fitting 3 passes to the time needed for thermistor 13, thus improves the sensitivity of this temperature detector.
Preferably, in the temperature detector that above-described embodiment provides, installation sheet 12 is fixed on shell 11 by the epoxy resin of embedding, and thermistor 13 is fixed on installation sheet 12 by the epoxy resin of embedding.Be understandable that, the full shell 11 of epoxy resin filling of embedding.Certainly, other modes can be selected to fixedly mount sheet 12 and thermistor 13, be not limited thereto.
In order to reduce the volume of shell 11, in the temperature detector that above-described embodiment provides, thermistor 13 is paster thermistor.Like this, the volume of thermistor 13 can be effectively reduced, and the installing space needed for thermistor 13, thus the volume of shell 11 can be effectively reduced, then can reduce shell 11 and extraneous heat exchange amount, and then improve the degree of accuracy of this temperature detector.In actual application, can select model be 0603,0805 or 1206 paster thermistor.
In order to improve sensitivity, in the temperature detector that above-described embodiment provides, the coefficient of heat conductivity of installation sheet 12 is greater than 1.0W/mK.Further, the coefficient of heat conductivity of installation sheet 12 is 1.3W/mK.Certainly, the coefficient of heat conductivity of installation sheet 12 also can be selected according to actual needs for other values, and the utility model embodiment does not limit this.
Preferably, in the temperature detector that above-described embodiment provides, installation sheet 12 is silica gel sheet.Concrete, model can be selected to be the silica gel sheet of Sil-Pad K10, can to select according to actual needs in actual application, be not limited thereto.It should be noted that, the voltage 1min of at least 4000VAC can be born between the pro and con of silica gel sheet, without punch-through.
Further, in the temperature detector that above-described embodiment provides, in a tubular form, and shell 11 has for contacting with tested pipe fitting 3 the cooperation cambered surface 111 coordinated shell 11, and installation sheet 12 is positioned at the shell 11 inwall position corresponding with coordinating cambered surface 111.Like this, increase shell 11 and the contact area of tested pipe fitting 3, accelerate the transmission of heat, effectively improve the sensitivity of this temperature detector; Meanwhile, the connective stability of shell 11 and tested pipe fitting 3 is also enhanced.Be understandable that, coordinate the convex middle part to shell 11 of cambered surface 111.
Preferably, in the temperature detector that above-described embodiment provides, shell 11 is copper pipe or stainless-steel tube.Certainly, also other materials pipe can be selected, as long as ensure that there is good heat transfer property.
Based on the temperature detector that above-described embodiment provides, the utility model embodiment still provides a kind of temperature sensing device, and this temperature sensing device comprises temperature detector 1, temperature detector 1 is fixed on the geometrical clamp 2 on tested pipe fitting 3; Wherein, this temperature detector 1 is the temperature detector described in above-described embodiment.
The temperature detector provided due to above-described embodiment has above-mentioned technique effect, and the temperature sensing device that the utility model embodiment provides has above-mentioned temperature detector, then the temperature sensing device that the utility model embodiment provides also has corresponding technique effect, repeats no more herein.
In order to reduce the metrical error of temperature detector 1, in the temperature sensing device that above-described embodiment provides, geometrical clamp 2 comprises: the internal layer 22 with thermal conductivity, is connected and has the skin 23 of heat-resisting quantity with internal layer 22; Wherein, internal layer 22 contacts with shell 11, and the thermal resistance of outer 23 is greater than 1M Ω.Like this, internal layer 22 has thermal conductivity, and the heat of tested pipe fitting 3 passes to shell 11 by internal layer 22, accelerates the transmission of temperature, improves the sensitivity of temperature detector 1; Meanwhile, the thermal resistance of outer 23 is greater than 1M Ω, then show that outer 23 are unfavorable for that the heat of shell 11 outwards transmits, thus reduce the heat outwards transmitted from shell 11, reduce the metrical error of temperature detector 1.
It should be noted that, outer 23 have heat-resisting quantity, can select resistance to elevated temperatures according to actual needs, and preferably, outer 23 maximum temperatures that can bear are not less than 140 DEG C.Such as, the warm scope of holding of outer 23 can be selected to be-60 DEG C to 180 DEG C.
Conveniently install temperature detector 1, in the temperature sensing device that above-described embodiment provides, the outer wall top of geometrical clamp 2 has the location instruction groove 21 for installing.Like this, in installation process, locate temperature detector 1 by location instruction groove 21, thus facilitate installation.Certainly, also can select other location indicating structure, be not limited thereto.
In the temperature sensing device that above-described embodiment provides, prioritizing selection outer 23 and internal layer 22 are integral type structure.For the concrete structure of geometrical clamp 2, can design according to actual needs, as long as temperature detector 1 can be fixed on tested pipe fitting 3, the utility model embodiment does not limit this.
To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the utility model.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a temperature detector, is characterized in that, comprising:
There is the shell (11) of thermal conductivity;
Be fixedly connected with described shell (11) inwall, and there is the installation sheet (12) of thermal conductivity and insulativity;
Be fixed on the thermistor (13) on described installation sheet (12), the lead-in wire (131) of described thermistor (13) stretches out described shell (11);
Wherein, along the direction perpendicular to described installation sheet (12), the projection of described thermistor (13) is positioned at described installation sheet (12).
2. temperature detector as claimed in claim 1, it is characterized in that, described installation sheet (12) is fixed on described shell (11) by the epoxy resin of embedding, and described thermistor (13) is fixed on described installation sheet (12) by the epoxy resin of embedding.
3. temperature detector as claimed in claim 1, described thermistor (13) is paster thermistor.
4. temperature detector as claimed in claim 1, the coefficient of heat conductivity of described installation sheet (12) is greater than 1.0W/mK.
5. temperature detector as claimed in claim 4, described installation sheet (12) is silica gel sheet.
6. temperature detector as claimed in claim 1, described shell (11) in a tubular form, and described shell (11) has for contacting the cooperation cambered surface (111) coordinated with tested pipe fitting (3), described installation sheet (12) is positioned at described shell (11) the inwall position corresponding with described cooperation cambered surface (111).
7. temperature detector as claimed in claim 6, described shell (11) is copper pipe or stainless-steel tube.
8. a temperature sensing device, comprising: temperature detector (1), described temperature detector (1) is fixed on the geometrical clamp (2) on tested pipe fitting (3); It is characterized in that, described temperature detector (1) is for as the temperature detector in claim 1-7 as described in any one.
9. temperature sensing device as claimed in claim 8, described geometrical clamp (2) comprising: the internal layer (22) with thermal conductivity, is connected and has the skin (23) of heat-resisting quantity with described internal layer (22); Wherein, described internal layer (22) contacts with described shell (11), and the thermal resistance of described skin (23) is greater than 1M Ω.
10. temperature sensing device as claimed in claim 8 or 9, the outer wall top of described geometrical clamp (2) has location instruction groove (21) for installing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519096.8U CN204064503U (en) | 2014-09-10 | 2014-09-10 | Temperature sensor and temperature sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519096.8U CN204064503U (en) | 2014-09-10 | 2014-09-10 | Temperature sensor and temperature sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204064503U true CN204064503U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420519096.8U Active CN204064503U (en) | 2014-09-10 | 2014-09-10 | Temperature sensor and temperature sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204064503U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371430A (en) * | 2015-11-16 | 2016-03-02 | 格力电器（芜湖）有限公司 | Pipeline temperature detection structure, air conditioner and pipeline temperature detection method |
| CN106225935A (en) * | 2016-08-28 | 2016-12-14 | 杭州河合电器股份有限公司 | A kind of novel temperature tube temperature sensor structure |
| CN109141052A (en) * | 2018-08-18 | 2019-01-04 | 广东中鹏热能科技有限公司 | A kind of furnace body temperature monitoring safety early warning device |
-
2014
- 2014-09-10 CN CN201420519096.8U patent/CN204064503U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371430A (en) * | 2015-11-16 | 2016-03-02 | 格力电器（芜湖）有限公司 | Pipeline temperature detection structure, air conditioner and pipeline temperature detection method |
| CN106225935A (en) * | 2016-08-28 | 2016-12-14 | 杭州河合电器股份有限公司 | A kind of novel temperature tube temperature sensor structure |
| CN109141052A (en) * | 2018-08-18 | 2019-01-04 | 广东中鹏热能科技有限公司 | A kind of furnace body temperature monitoring safety early warning device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |