CN105784177A - Temperature sensor and temperature sensing device - Google Patents
Temperature sensor and temperature sensing device Download PDFInfo
- Publication number
- CN105784177A CN105784177A CN201410811324.3A CN201410811324A CN105784177A CN 105784177 A CN105784177 A CN 105784177A CN 201410811324 A CN201410811324 A CN 201410811324A CN 105784177 A CN105784177 A CN 105784177A
- Authority
- CN
- China
- Prior art keywords
- shell
- temperature detector
- installation sheet
- temperature
- critesistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 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 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 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
- 238000001514 detection method Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning 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
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention provides a temperature sensor and a temperature sensing device, wherein the 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. According to the temperature sensor provided by the invention, the thermistor cannot be in direct contact with the shell, and the thermistor is in insulated connection with the shell; 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 temperature sensing device provided by the invention is provided with the temperature sensor.
Description
Technical field
The present invention relates to temperature detection technical field, more particularly, it relates to a kind of temperature detector and temperature sensing device.
Background technology
In air conditioning system, it is necessary to detect the temperature of multiple parts and position, for instance the delivery temperature of compressor.At present, adopting the temperature detector such as temperature-sensitive bag or temperature sensor detection temperature, temperature detector specifically includes that the copper pipe as shell, is positioned at the critesistor of copper pipe；Wherein, copper pipe drawn by the lead-in wire of critesistor.
For detecting the temperature detector of compressor exhaust temperature, due to the earthing of casing of compressor, it is desirable to adopt insulating resin insulation between critesistor and copper pipe.Tested pipe fitting transfers heat to critesistor by shell and insulating resin, thus realizing thermometric.Owing to insulating resin is non-conductive body, cause that the temperature transfer of tested pipe fitting is longer to critesistor required time, cause that the sensitivity of this temperature detector is relatively low.
Additionally, temperature detector is fixed on tested pipe fitting by fixation clamp, usual fixation clamp is rustless steel shell fragment, the outer surface of fixation clamp directly contacts with external environment, cause that fixation clamp is bigger with the heat exchange amount of external environment, making this temperature sensing device detection error occur, ambient temperature is more low, and detection error is more big.
In sum, how to improve the sensitivity of temperature detector, be current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of temperature detector, to improve its sensitivity.It is an object of the invention to provide a kind of temperature sensing device with above-mentioned temperature detector.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of temperature detector, including:
There is the shell of heat conductivity；
Fix with described outer casing inner wall and be connected, and there is the installation sheet of heat conductivity and insulating properties；
Being fixed on the critesistor on described installation sheet, the lead-in wire of described critesistor stretches out described shell；Described shell edge be formed with inner concave arc surface, the degree of depth of indent lake surface is 0.3-0.5cm；It is easy to contact with pipeline.
Wherein, along the direction being perpendicular to described installation sheet, the projection of described critesistor 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 critesistor is fixed on described installation sheet by the epoxy resin of embedding.
Preferably, in above-mentioned temperature detector, described critesistor is paster critesistor.
Preferably, in above-mentioned temperature detector, the heat conductivity of described installation sheet is more than 1.0W/m K.
Preferably, in above-mentioned temperature detector, described installation sheet is silica gel sheet.
Preferably, in above-mentioned temperature detector, described shell in a tubular form, and described shell have for contact with tested pipe fitting coordinate cooperation cambered surface, described installation sheet is positioned at the position that described outer casing inner wall is corresponding with described cooperation cambered surface.
Preferably, in above-mentioned temperature detector, described shell is copper pipe or stainless steel tube.
Based on the temperature detector of above-mentioned offer, present invention also offers a kind of temperature sensing device, temperature sensing device includes: temperature detector, and described temperature detector is fixed on the fixation 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 fixation clamp includes: have the internal layer of heat conductivity, is connected with described internal layer and has the outer layer of heat-resisting quantity；Wherein, described internal layer and described housing contacts, the thermal resistance of described outer layer is more than 1M Ω.
Preferably, in above-mentioned temperature sensing device, the outer wall top of described fixation clamp has the location instruction groove for installing.
Temperature detector provided by the invention, by the installation sheet having heat conductivity with have insulating properties is fixed on outer casing inner wall, critesistor is fixed on installation sheet, and being positioned at installation sheet along the projection of the direction critesistor that is perpendicular to installation sheet, then critesistor directly will not contact with shell and critesistor is connected with casing insulation；The temperature of tested pipe fitting passes to critesistor by shell, installation sheet, owing to installation sheet has heat conductivity, adopt compared with insulating resin insulation critesistor and shell with prior art, effectively accelerate the transmission of heat, shorten the temperature transfer of tested pipe fitting to the time needed for critesistor, thus improve the sensitivity of this temperature detector.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The structural representation of the temperature detector that Fig. 1 provides for the embodiment of the present invention；
The use schematic diagram of the temperature sensing device that Fig. 2 provides for the embodiment of the present invention；
The structural representation of fixation clamp in the temperature sensing device that Fig. 3 provides for the embodiment of the present invention.
In figure 1 above-Fig. 3:
1 be temperature detector, 11 be shell, 111 for coordinating cambered surface, 12 be installation sheet, 13 be critesistor, 131 be lead-in wire, 2 be fixation clamp, 21 be location instruction groove, 22 be internal layer, 23 be outer layer, 3 for tested pipe fitting.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
The temperature detector that the embodiment of the present invention provides, including: there is the shell 11 of heat conductivity；The installation sheet 12 being connected and having heat conductivity and insulating properties is fixed with shell 11 inwall；Being fixed on the critesistor 13 on installation sheet 12, the lead-in wire 131 of this critesistor 13 stretches out shell 11；Wherein, along the direction being perpendicular to installation sheet 12, the projection of critesistor 13 is positioned at installation sheet 12.
Temperature detector provided by the invention, by the installation sheet 12 having heat conductivity with have insulating properties is fixed on the inwall of shell 11, critesistor 13 is fixed on installation sheet 12, and being positioned at installation sheet 12 along the projection of the direction critesistor 13 that is perpendicular to installation sheet 12, then critesistor 13 directly will not contact with shell 11 and critesistor 13 insulate with shell 11 and is connected；The temperature of tested pipe fitting 3 passes to critesistor 13 by shell 11, installation sheet 12, owing to installation sheet 12 has heat conductivity, adopt compared with insulating resin insulation critesistor and shell with prior art, effectively accelerate the transmission of heat, shorten the temperature transfer of tested pipe fitting 3 to the time needed for critesistor 13, thus improve 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 critesistor 13 is fixed on installation sheet 12 by the epoxy resin of embedding.It is understood that the full shell 11 of the epoxy resin filling of embedding.Certainly, other modes optional fixedly mount sheet 12 and critesistor 13, it is not limited to this.
In order to reduce the volume of shell 11, in the temperature detector that above-described embodiment provides, critesistor 13 is paster critesistor.So, the volume of critesistor 13 and the installing space needed for critesistor 13 can be effectively reduced such that it is able to effectively reduce the volume of shell 11, then can reduce shell 11 and extraneous heat exchange amount, and then improve the degree of accuracy of this temperature detector.In actual application, optional model is the paster critesistor of 0603,0805 or 1206.
In order to improve sensitivity, in the temperature detector that above-described embodiment provides, the heat conductivity of installation sheet 12 is more than 1.0W/m K.Further, the heat conductivity of installation sheet 12 is 1.3W/m K.Certainly, it is possible to the heat conductivity selecting installation sheet 12 according to actual needs is other values, and this is not limited by the embodiment of the present invention.
Preferably, in the temperature detector that above-described embodiment provides, installation sheet 12 is silica gel sheet.Concrete, optional model is the silica gel sheet of Sil-PadK10, can select according to actual needs in actual application, it is not limited to this.It should be noted that the voltage 1min of at least 4000VAC can be born between the obverse and reverse 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 contact the cooperation cambered surface 111 coordinated with tested pipe fitting 3 shell 11, and installation sheet 12 is positioned at shell 11 inwall and position corresponding to cooperation cambered surface 111.So, increase the contact area of shell 11 and tested pipe fitting 3, accelerate the transmission of heat, be effectively increased the sensitivity of this temperature detector；Meanwhile, the connective stability of shell 11 and tested pipe fitting 3 is also enhanced.It is understood that coordinate cambered surface 111 to be convex to the middle part of shell 11.
Preferably, in the temperature detector that above-described embodiment provides, shell 11 is copper pipe or stainless steel tube.Certainly, it is possible to select other materials pipe, as long as ensureing that there is good heat transfer property.
Based on the temperature detector that above-described embodiment provides, the embodiment of the present invention additionally provides a kind of temperature sensing device, and this temperature sensing device includes temperature detector 1, and temperature detector 1 is fixed on the fixation 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 embodiment of the present invention provides has above-mentioned temperature detector, then the temperature sensing device that the embodiment of the present invention provides also has corresponding technique effect, repeats no more herein.
In order to reduce the detection error of temperature detector 1, in the temperature sensing device that above-described embodiment provides, fixation clamp 2 includes: have the internal layer 22 of heat conductivity, is connected with internal layer 22 and has the outer layer 23 of heat-resisting quantity；Wherein, internal layer 22 contacts with shell 11, and the thermal resistance of outer layer 23 is more than 1M Ω.So, internal layer 22 has heat conductivity, and the heat of tested pipe fitting 3 can pass through internal layer 22 and pass to shell 11, accelerates the transmission of temperature, improves the sensitivity of temperature detector 1；Meanwhile, the thermal resistance of outer layer 23 more than 1M Ω, then shows that outer layer 23 is unfavorable for that the heat of shell 11 outwards transmits, thus reducing the heat outwards transmitted from shell 11, reduces the detection error of temperature detector 1.
It should be noted that outer layer 23 has heat-resisting quantity, resistance to elevated temperatures can be selected according to actual needs, it is preferred that the maximum temperature that outer layer 23 can bear is not less than 140 DEG C.Such as, the temperature of holding of optional outer layer 23 ranges for-60 DEG C to 180 DEG C.
Installing temperature detector 1 in order to convenient, in the temperature sensing device that above-described embodiment provides, the outer wall top of fixation clamp 2 has the location instruction groove 21 for installing.So, in installation process, temperature detector 1 can be positioned by location instruction groove 21, thus facilitating installation.Certainly, it is possible to select other location instruction structure, it is not limited to this.
In the temperature sensing device that above-described embodiment provides, prioritizing selection outer layer 23 and internal layer 22 are integral type structure.For the concrete structure of fixation clamp 2, can being designed according to actual needs, as long as can be fixed on tested pipe fitting 3 by temperature detector 1, this is not limited by the embodiment of the present invention.
Described above to the disclosed embodiments, makes those skilled in the art be capable of or uses the present invention.The multiple amendment of these embodiments be will be apparent from for a person skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a temperature detector, it is characterised in that including:
There is the shell (11) of heat conductivity；
Fix with described shell (11) inwall and be connected, and there is the installation sheet (12) of heat conductivity and insulating properties；
Being fixed on the critesistor (13) on described installation sheet (12), the lead-in wire (131) of described critesistor (13) stretches out described shell (11)；Described shell edge be formed with inner concave arc surface, the degree of depth of indent lake surface is 0.3-0.5cm；
Wherein, along the direction being perpendicular to described installation sheet (12), the projection of described critesistor (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 critesistor (13) is fixed on described installation sheet (12) by the epoxy resin of embedding.
3. temperature detector as claimed in claim 1, described critesistor (13) is paster critesistor.
4. temperature detector as claimed in claim 1, the heat conductivity of described installation sheet (12) is more than 1.0W/m K.
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) is 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 the position that described shell (11) inwall is 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, including: temperature detector (1), is fixed on the fixation clamp (2) on tested pipe fitting (3) by described temperature detector (1)；It is characterized in that, described temperature detector (1) is the temperature detector as described in any one in claim 1-7.
9. temperature sensing device as claimed in claim 8, described fixation clamp (2) including: has the internal layer (22) of heat conductivity, is connected with described internal layer (22) and has the outer layer (23) of heat-resisting quantity；Wherein, described internal layer (22) contacts with described shell (11), and the thermal resistance of described outer layer (23) is more than 1M Ω.
10. temperature sensing device as claimed in claim 8 or 9, the outer wall top of described fixation clamp (2) has location instruction groove (21) for installing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410811324.3A CN105784177A (en) | 2014-12-23 | 2014-12-23 | Temperature sensor and temperature sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410811324.3A CN105784177A (en) | 2014-12-23 | 2014-12-23 | Temperature sensor and temperature sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105784177A true CN105784177A (en) | 2016-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410811324.3A Pending CN105784177A (en) | 2014-12-23 | 2014-12-23 | Temperature sensor and temperature sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105784177A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727261A (en) * | 2016-08-12 | 2018-02-23 | 泰科电子(上海)有限公司 | Temperature measurement component and electric equipment |
| CN110857888A (en) * | 2018-08-24 | 2020-03-03 | 西门子工业公司 | Temperature sensor for thermal monitoring system of power distribution system |
| CN111122011A (en) * | 2020-01-09 | 2020-05-08 | 湖南红橡室内气候技术有限公司 | Concealed surface temperature sensor |
-
2014
- 2014-12-23 CN CN201410811324.3A patent/CN105784177A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727261A (en) * | 2016-08-12 | 2018-02-23 | 泰科电子(上海)有限公司 | Temperature measurement component and electric equipment |
| CN107727261B (en) * | 2016-08-12 | 2024-06-11 | 泰科电子(上海)有限公司 | Temperature measurement assembly and electrical equipment |
| CN110857888A (en) * | 2018-08-24 | 2020-03-03 | 西门子工业公司 | Temperature sensor for thermal monitoring system of power distribution system |
| CN110857888B (en) * | 2018-08-24 | 2022-05-31 | 西门子工业公司 | Temperature sensor for thermal monitoring system of power distribution system |
| CN111122011A (en) * | 2020-01-09 | 2020-05-08 | 湖南红橡室内气候技术有限公司 | Concealed surface temperature sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |
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| WD01 | Invention patent application deemed withdrawn after publication |