CN209673239U - A kind of thermal resistance type temperature-detecting device - Google Patents
A kind of thermal resistance type temperature-detecting device Download PDFInfo
- Publication number
- CN209673239U CN209673239U CN201821614732.XU CN201821614732U CN209673239U CN 209673239 U CN209673239 U CN 209673239U CN 201821614732 U CN201821614732 U CN 201821614732U CN 209673239 U CN209673239 U CN 209673239U
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- Prior art keywords
- protection
- sleeve pipe
- thermal resistance
- ceramic
- type temperature
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- 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.)
- Expired - Fee Related
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- Thermistors And Varistors (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a kind of thermal resistance type temperature-detecting devices, including protection sleeve pipe, the inner cavity spaced set of protection sleeve pipe has ceramic protection board, the inner cavity top of protection sleeve pipe is provided with ceramic skeleton, the outer wall of ceramic skeleton is wound with platinum resistance thermometer sensor, external thread sleeve is provided at the top of protection sleeve pipe, protection shell is provided at the top of external thread sleeve, it protects and is provided with bradyseism plate at the lumen centers of shell, spring is symmetrically arranged at left and right sides of bradyseism plate, the surface of bradyseism plate is provided with amplifier and analog-digital commutator, the input terminal of amplifier is connected by lead with platinum resistance thermometer sensor, output end, the output end of amplifier is connected by conducting wire with the input terminal of analog-digital commutator, pin interfaces are provided at the top of protection shell, the structure design of the utility model is reasonable, improve the measurement accuracy of thermal resistance, it is protected by ceramics The barrier protection of plate acts on, and reduces protection sleeve pipe and damages when by thermal expansion to platinum resistance thermometer sensor,.
Description
Technical field
The utility model relates to thermal resistance technical field more particularly to a kind of thermal resistance type temperature-detecting devices.
Background technique
It is well known that platinum resistance thermometer element production in China's has mica frame structure, glass skeleton structure, ceramic skeleton
Structure and membrane type (thick film or film) resistance.But in industrial platinum resistance products application, one is by glass, ceramics or
Film resistor element is placed in being filled with magnesia powder armor sleeve, and armoured Pt thermal resistance thermometer is made.Another kind accounts for very
Large-tonnage is still that mica platinum resistive element is placed in various pillars, and the platinum resistance thermometer of fabricated construction is made.Cloud
Female skeleton platinum resistance it is loosely organized, platinum filament exposure, easily cause platinum filament to pollute, and mica frame production platinum resistance ceiling temperature
Lower (generally within 450 DEG C).
And in order to be socketed protection sleeve pipe outside platinum resistance mostly to platinum resistance thermometer sensor, progress protective effect, but due to protecting
Thermal expansion phenomenon easily occurs when heated for protecting pipe, damages to platinum resistance thermometer sensor, and in protection sleeve pipe, and heat is passed by air
It leads on platinum resistance thermometer sensor, causes accuracy in detection not high, for this purpose, we have proposed a kind of thermal resistance type temperature-detecting devices.
Utility model content
The utility model provides a kind of thermal resistance type temperature-detecting device, and the purpose of this utility model is to improve thermal resistance
Measurement accuracy, acted on by the barrier protection of ceramic protection board, reduce protection sleeve pipe when by thermal expansion to platinum resistance thermometer sensor,
It damages.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions:
The inner cavity spaced set of a kind of thermal resistance type temperature-detecting device, including protection sleeve pipe, the protection sleeve pipe has
Ceramic protection board, the inner cavity top of the protection sleeve pipe is provided with ceramic skeleton, and ceramic skeleton runs through ceramic protection board, described
The outer wall of ceramic skeleton is wound with platinum resistance thermometer sensor, and external thread sleeve is provided at the top of the protection sleeve pipe, the external thread sleeve
Top is provided with protection shell, is provided with bradyseism plate, the left and right sides of the bradyseism plate at the lumen centers of the protection shell
It is symmetrically arranged with spring, the surface of the bradyseism plate is provided with amplifier and analog-digital commutator, and amplifier turns positioned at modulus
The input terminal of the lower section of changing device, the amplifier is connected by lead with platinum resistance thermometer sensor, output end, the amplifier it is defeated
Outlet is connected by conducting wire with the input terminal of analog-digital commutator, is provided with pin interfaces at the top of the protection shell, institute
The output end lead for stating analog-digital commutator stretches out protection shell by pin interfaces；
Limit hole, two sides pair above and below the surface of the ceramics protection board are offered at the centre of surface of the ceramics protection board
Claim to be fitted into and thermally conductive sheet is installed.
Preferably, in above-mentioned thermal resistance type temperature-detecting device, the internal diameter of the limit hole is greater than the outer diameter of ceramic skeleton,
Run through ceramic protection board in this way convenient for ceramic skeleton.
Preferably, in above-mentioned thermal resistance type temperature-detecting device, the left and right sides of the thermally conductive sheet and ceramic protection board it
Between be provided with hot extension gap, can extend to two sides when thermally conductive sheet is heated convenient for it in this way.
Preferably, in above-mentioned thermal resistance type temperature-detecting device, it is symmetrically arranged with position-limiting cover at left and right sides of the spring,
It is acted on by the position limitation protection of position-limiting cover, can reduce a possibility that spring shifts when in use, improve spring works
Stability.
Preferably, in above-mentioned thermal resistance type temperature-detecting device, the inner cavity of the pin interfaces is provided with rubber seal plug,
By rubber seal plug external dust can be reduced by pin interfaces and enters guarantor in order to be sealed effect to pin interfaces
A possibility that protecting interior of shell.
The beneficial effects of the utility model are:
The structure design of the utility model is reasonable, first: by thermally conductive sheet to the conduction of heat instead of previous by air
Conduction, improves the measurement accuracy of thermal resistance；
Second: being acted on by the barrier protection of ceramic protection board, reduce protection sleeve pipe when by thermal expansion to platinum resistance thermometer sensor,
It damages；
Third: the bradyseism of bradyseism plate is acted on by spring, it is possible to reduce electric elements thereon are shaken in work
Influence, improve bradyseism plate on electric elements service life.
Certainly, implement any product of the utility model it is not absolutely required to and meanwhile reach above all advantages.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the ceramic protection board structural schematic diagram of the utility model；
Fig. 3 is the portion A-A structure sectional view in Fig. 2 of the utility model；
In attached drawing, parts list represented by the reference numerals are as follows:
1- protection sleeve pipe, 2- ceramics protection board, 201- limit hole, 202- thermally conductive sheet, 3- ceramic skeleton, 4- platinum resistance thermometer sensor,
5- external thread sleeve, 6- protect shell, 7- bradyseism plate, 8- spring, 9- amplifier, 10- analog-digital commutator, 11- pin interfaces.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-3, the present embodiment is a kind of thermal resistance type temperature-detecting device, including protection sleeve pipe 1, is protected
The inner cavity spaced set of protecting pipe 1 has ceramic protection board 2, and the inner cavity top of protection sleeve pipe 1 is provided with ceramic skeleton 3, and makes pottery
Porcelain body frame 3 runs through ceramic protection board 2, and the outer wall of ceramic skeleton 3 is wound with platinum resistance thermometer sensor, 4, and the top of protection sleeve pipe 1 is provided with outer
Thread bush 5, the top of external thread sleeve 5 are provided with protection shell 6, protect and are provided with bradyseism plate 7 at the lumen centers of shell 6, delay
The left and right sides of shake plate 7 is symmetrically arranged with spring 8, and the left and right sides of spring 8 is symmetrically arranged with position-limiting cover, passes through the limit of position-limiting cover
Position protective effect can reduce a possibility that spring 8 shifts when in use, improve the stability that spring 8 works, bradyseism plate
7 surface is provided with amplifier 9 and analog-digital commutator 10, and amplifier 9 is located at the lower section of analog-digital commutator 10, amplification
The input terminal of device 9 is connected by lead with 4 output end of platinum resistance thermometer sensor, and the output end of amplifier 9 passes through conducting wire and analog-to-digital conversion
The input terminal of device 10 is connected, and the top of protection shell 6 is provided with pin interfaces 11, and the inner cavity of pin interfaces 11 is provided with rubber
Glue sealing-plug can be reduced external dust and pass through lead by rubber seal plug in order to be sealed effect to pin interfaces 11
Interface 11 enters a possibility that protection 6 inside of shell, and the output end lead of analog-digital commutator 10 is stretched by pin interfaces 11
Shell 6 is protected out；Limit hole 201 is offered at the centre of surface of ceramic protection board 2, the internal diameter of limit hole 201 is greater than ceramic bone
The outer diameter of frame 3, runs through ceramic protection board 2 in this way convenient for ceramic skeleton 3, and the surface of ceramic protection board 2 is symmetrically fitted into two sides up and down
Thermally conductive sheet 202 is installed, hot extension gap is provided between the left and right sides of thermally conductive sheet 202 and ceramic protection board 2, in this way may be used
To be convenient for it to extend to two sides when thermally conductive sheet 202 is heated.
A kind of specific implementation of the present apparatus, in use, protective effect can be carried out to platinum resistance thermometer sensor, 4 by protection sleeve pipe 1,
Ceramic skeleton 3 fixes effect to platinum resistance thermometer sensor, 4, due to ceramic better heat stability, is not susceptible to thermal expansion, passes through pottery
Inwardly extended barrier protection effect when porcelain protection board 2 is to 1 thermal expansion of protection sleeve pipe reduces protection sleeve pipe 1 when by thermal expansion pair
Platinum resistance thermometer sensor, 4 damages, by 202 pairs of hot conduction of thermally conductive sheet instead of in the past pass through the conduction of air, improve thermal resistance
4 measurement accuracy acts on the bradyseism of bradyseism plate 7 by spring 8, it is possible to reduce electric elements thereon are shaken in work
Dynamic influence improves the service life of electric elements on bradyseism plate 7, and the signals of 9 pairs of amplifier receiving amplify processing, and mould
Analog-to-digital conversion apparatus 10 converts electrical signals to digital signal, convenient for the transmitting of signal.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, does not limit the specific embodiment that the utility model is only yet.Obviously, according to this specification
Content, can make many modifications and variations.These embodiments are chosen and specifically described to this specification, be in order to preferably explain
The principles of the present invention and practical application, so that skilled artisan be enable to better understand and utilize this practical
It is novel.The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. a kind of thermal resistance type temperature-detecting device, including protection sleeve pipe, it is characterised in that: between inner cavity of the protection sleeve pipe etc.
Away from ceramic protection board is provided with, the inner cavity top of the protection sleeve pipe is provided with ceramic skeleton, and ceramic skeleton is protected through ceramics
Backplate, the outer wall of the ceramic skeleton are wound with platinum resistance thermometer sensor, and external thread sleeve is provided at the top of the protection sleeve pipe, described outer
It is provided with protection shell at the top of thread bush, is provided with bradyseism plate at the lumen centers of the protection shell, the bradyseism plate
The left and right sides is symmetrically arranged with spring, and the surface of the bradyseism plate is provided with amplifier and analog-digital commutator, and amplifier position
In the lower section of analog-digital commutator, the input terminal of the amplifier is connected by lead with platinum resistance thermometer sensor, output end, described to put
The output end of big device is connected by conducting wire with the input terminal of analog-digital commutator, is provided with lead at the top of the protection shell
The output end lead of interface, the analog-digital commutator stretches out protection shell by pin interfaces；
Limit hole is offered at the centre of surface of the ceramics protection board, two sides are symmetrically embedding up and down on the surface of the ceramics protection board
Conjunction is equipped with thermally conductive sheet.
2. thermal resistance type temperature-detecting device according to claim 1, it is characterised in that: the internal diameter of the limit hole is greater than
The outer diameter of ceramic skeleton.
3. thermal resistance type temperature-detecting device according to claim 1, it is characterised in that: the left and right sides of the thermally conductive sheet
Hot extension gap is provided between ceramic protection board.
4. thermal resistance type temperature-detecting device according to claim 1, it is characterised in that: the left and right sides of the spring is right
Title is provided with position-limiting cover.
5. thermal resistance type temperature-detecting device according to claim 1, it is characterised in that: the inner cavity of the pin interfaces is set
It is equipped with rubber seal plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614732.XU CN209673239U (en) | 2018-09-30 | 2018-09-30 | A kind of thermal resistance type temperature-detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614732.XU CN209673239U (en) | 2018-09-30 | 2018-09-30 | A kind of thermal resistance type temperature-detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209673239U true CN209673239U (en) | 2019-11-22 |
Family
ID=68560407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821614732.XU Expired - Fee Related CN209673239U (en) | 2018-09-30 | 2018-09-30 | A kind of thermal resistance type temperature-detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209673239U (en) |
-
2018
- 2018-09-30 CN CN201821614732.XU patent/CN209673239U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191122 Termination date: 20200930 |