CN205625574U - Temperature control element - Google Patents
Temperature control element Download PDFInfo
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- CN205625574U CN205625574U CN201620204245.0U CN201620204245U CN205625574U CN 205625574 U CN205625574 U CN 205625574U CN 201620204245 U CN201620204245 U CN 201620204245U CN 205625574 U CN205625574 U CN 205625574U
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- thermometric
- block
- temperature sensor
- hole
- shell
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Abstract
The utility model discloses a temperature control element, including block, temperature sensor, temperature sensor comprises shell, NTC thermistor, wire and connector, the shell comprises temperature measurement board, sleeve pipe, and bushing is the T font in temperature measurement backboard face, shell forward projection, the block upper surface leaves has the through -hole, and temperature sensor installs in the block through -hole, and the neat face of temperature measurement flushes with the block upper surface or a little more than the block upper surface, NTC thermistor is drawn forth by the wire and links with the connector in being fixed in the sleeve pipe. The utility model discloses install temperature sensor in the shell, shell direct contact wants the measuring object, has reduced temperature measurement's hysteresis quality, temperature sensor's temperature sensing, temperature measurement sensitivity are effectively provided high, the temperature sensor who has adopted the single -ended glass of NTC to seal thermistor has improved measuring accuracy and reliability, appearance less than the block to generally using in the current rice cooker changes, need not reopen the mould, and the assembly is simple and easy.
Description
Technical field
This utility model belongs to field of temperature measurement, particularly relates to the temperature control element of a kind of electric cooker.
Background technology
The temperature control element of existing electric cooker is made up of block and temperature sensor, and the upper surface of block and electricity are put in pot
Gallbladder contacts, and temperature sensor uses NTC axial glass envelope critesistor overcoat heat-shrinkable T bush, Teflon pipe, is converted into U-shaped, at lid
The inside of cap upper surface is provided with tabletting, and axial for the NTC glass envelope critesistor i.e. bottom of U-shaped is overlayed the back of the body in lid upper surface
Face, it is achieved the temperature of electric cooker is controlled.
But, owing to temperature sensor is at the back side of lid upper surface, during thermometric, the heat of inner bag is first transmitted in block
Surface, then it is transmitted to NTC axial glass envelope critesistor by block, and NTC axial glass envelope critesistor is to be fixed on lid by tabletting
In cap, cause due to assembly technology and structure causes: 1, deposit between NTC axial glass envelope critesistor and the back side of lid upper surface
There is either large or small gap；2, the heat-shrinkable T bush being cased with on NTC axial glass envelope critesistor and the difference of Teflon pipe heat conductivity
Different；3, because block heat conductivity is good, heat dissipates also big simultaneously, and heat is the most fully effective is transmitted to NTC axial glass envelope temperature-sensitive
Resistance.Above-mentioned reason causes the temperature survey of inner bag inevitably to have hysteresis quality, error height, and this hysteresis quality has
Uncertain, it is impossible to be overcome by prefabricated lead；And NTC its structure of Axial Thermal sensitive resistor used is machine riveting
Formula, to vibrations, hot environment adaptability poor, it is possible to occur riveting end get loose, reliability is low.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide one quickly, accurately, survey reliably
The temperature control element of the electric cooker of amount inner bag temperature.
For reaching above-mentioned purpose, this utility model is to be realized by following technical scheme.
The temperature control element of a kind of electric cooker, including block, temperature sensor；Temperature sensor is by shell, NTC temperature-sensitive electricity
Resistance, wire and adapter composition；Shell is made up of thermometric plate, sleeve pipe, telescopic joint in thermometric back, shell forward projection in
T-shaped；Lid upper surface has through hole, and temperature sensor is arranged in block through hole, and thermometric plate front is neat with lid upper surface
Flat or slightly above lid upper surface, NTC thermistor is fixed in sleeve pipe, and is drawn by wire and link with adapter.Temperature passes
Sensor shell directly contacts with inner bag, and the heat of inner bag is transduceed to temperature sensor shell, then is passed directly to NTC heat by shell
Quick resistance, greatly reduces thermometric hysteresis quality and error.
The mounting means of the most described shell is divided into the formula of being completely covered and embedded.
When the mounting means of the most described shell is for being completely covered formula, the aperture of through hole is straight equal to the upper surface of block
Footpath, thermometric plate front is in the same size with the upper surface of block and processes downward edgewise at thermometric edges of boards edge, thermometric version is socketed
Top in block.
When the mounting means of the most described shell is embedded, it is divided into two kinds: a kind of for being completely embedded into formula, i.e. block
The through hole of upper surface coordinates with thermometric plate size, in the through hole of the through hole that thermometric plate is completely embedded into lid upper surface；Another kind of
For half built-in, will be divided into upper and lower two-layer by thermometric plate, upper strata processes a boss, the height of boss and the thickness of lid upper surface
Consistent or adaptive slightly larger than cap surface thickness, the planar dimension of boss and through hole, the planar dimension of lower floor and lid upper surface
Adaptation, puts in block from bottom to top by thermometric plate, and boss embeds in through hole, and the back of the body of lid upper surface is close to by thermometric plate lower floor
Face.
The most described thermometric plate with the fixed form of block is: when being completely embedded into formula, being slightly larger in dimension than of thermometric plate
The clear size of opening of lid upper surface, fixed form uses welding manner or tight fit；During half built-in, fixed form uses welding
Mode, it would however also be possible to employ near thermometric version lower floor position outside mechanical presses block, thermometric version is fixed.
The most described thermometric back has hole at temperature sensor cannula connection, and the perforate degree of depth is that bottom hole pitch is surveyed
Temperature plate front is not less than 0.1mm.NTC thermistor can reduce thermometric hysteresis quality further close to inner bag.
The most described temperature sensor be described temperature sensor be NTC single-ended glass seal critesistor.Its structure is
The mode of silver paste welding is connected with chip, has vibration resistance, high temperature resistant, heat sensitivity is high, environmental suitability is strong.It is that temperature passes
Temperature-sensitive in sensor, the core of thermometric.
The most described temperature sensor uses the one in epoxy resin, silica gel, ceramic glue by temperature sensing after installing
Device is encapsulated in sleeve pipe.Use a kind of encapsulation temperature sensor sleeve pipe in epoxy resin, silica gel, ceramic glue, on the one hand play
The effect of fixing NTC thermistor ensures its pressure insulating properties, on the one hand makes temperature sensor shell by heat orientation conduction NTC
On critesistor, improve the sensitivity and precision measured.
The most described block and temperature sensor enclosure material can be aluminum, copper, rustless steel or other heat conduction systems
The preferable metal of number and high-temperature resistance plastice.
Beneficial effect: compared with prior art, the utility model has the advantage of:
1) temperature sensor being arranged in shell, shell directly contacts object to be measured, and reduces temperature survey
Hysteresis quality；The height temperature-sensitive of temperature sensor, sensitivity of thermometry are effectively provided.
2) have employed NTC single-ended glass seal critesistor as temperature sensor, improve accuracy and the reliability of measurement；
3) the profile of the block commonly used in existing electric cooker is not changed, it is not necessary to reopen mould, assembling
Simply.
Accompanying drawing explanation
The structural representation of Fig. 1 this utility model embodiment 1；
The top view of Fig. 2 this utility model embodiment 1；
The shell mechanism schematic diagram of Fig. 3 this utility model embodiment 1；
The structural representation of Fig. 4 this utility model embodiment 2；
The structural representation of Fig. 5 this utility model embodiment 3；
The structural representation of Fig. 6 this utility model embodiment 4；
The structural representation of Fig. 7 this utility model embodiment 5；
The structural representation of Fig. 8 this utility model embodiment 6；
Wherein 1. block, 2. shell, 3. single-ended glass seal critesistor, 4. thermometric version, 5. sleeve pipe, 6. epoxy resin,
7. wire, 8. adapter.
Detailed description of the invention
Below in conjunction with example, the utility model is described in further detail.
Embodiment 1
As shown in Fig. 1,2,3, the temperature control element of a kind of electric cooker, including block, temperature sensor；Lid upper surface
Have through hole；Temperature sensor is made up of NTC single-ended glass seal critesistor, shell, epoxy resin, wire and adapter；Shell
Being made up of thermometric plate, sleeve pipe, telescopic joint in thermometric back, shell forward projection is in T shape；Thermometric plate is divided into upper and lower two
Layer, upper strata processes a boss, the height of boss and the consistency of thickness of lid upper surface, and the planar dimension of boss is adaptive with through hole,
Lower floor is in the same size with lid upper surface；Thermometric back is having hole with cannula connection, and the perforate degree of depth is that bottom hole pitch is surveyed
Temperature plate front is not less than 0.1mm；NTC single-ended glass seal critesistor is put at the bottom of the hole being placed in thermometric back from sleeve pipe, and by
Wire is drawn and is linked with adapter, then uses epoxy encapsulation sleeve pipe；Being put into from bottom to top in block by shell, boss embeds
In through hole, near thermometric version lower floor position outside mechanical presses block, thermometric version is fixed.
Embodiment 2
As shown in Figure 4, substantially the same manner as Example 1, except that, the height of boss is slightly above the thickness of lid upper surface
Degree, thermometric version lower floor diameter is slightly less than lid upper surface diameter, is put into from bottom to top in block by shell, and boss embeds through hole
In, thermometric version lower floor is welded on the back side of lid upper surface.
Embodiment 3
As it is shown in figure 5, substantially the same manner as Example 1, except that, the through hole of lid upper surface with thermometric plate size is
Tight fit, is completely embedded into thermometric plate in the through hole of lid upper surface；Use silica gel packaging sleeve pipe.
Embodiment 4
As shown in Figure 6, substantially the same manner as Example 3, except that, the through-hole diameter of lid upper surface is straight with thermometric plate
Footpath is consistent, after being completely embedded in the through hole of lid upper surface by thermometric plate, at the back side of lid upper surface by thermometric plate and block
Welding；Thermometric plate front is slightly above lid upper surface.
Embodiment 5
As it is shown in fig. 7, substantially the same manner as Example 1, except that, through hole is in the same size with the upper surface of block,
Thermometric plate front is in the same size with the upper surface of block and processes downward edgewise at thermometric edges of boards edge, and thermometric version is socketed in lid
The top of cap；Sleeve pipe is encapsulated with ceramic glue.
Embodiment 6
As shown in Figure 8, substantially the same manner as Example 5, except that, after thermometric version is socketed in the top of block, will
The edgewise of thermometric plate welds with block.
This utility model is illustrated according to above-described embodiment, it will be appreciated that above-described embodiment limits the most in any form
Determine this utility model, the technical scheme that all employing equivalents or equivalent transformation mode are obtained, all fall within of the present utility model
Within protection domain.
Claims (9)
1. a temperature control element, it is characterised in that include block, temperature sensor；Temperature sensor is by shell, NTC temperature-sensitive electricity
Resistance, wire and adapter composition；Shell is made up of thermometric plate, sleeve pipe, telescopic joint in thermometric back, shell forward projection in
T-shaped；Lid upper surface has through hole, and temperature sensor is arranged in block, and thermometric plate is placed in through hole, thermometric plate front with
Lid upper surface flushes or slightly above lid upper surface, and NTC thermistor is fixed in sleeve pipe, and is drawn by wire and adapter
Link.
A kind of temperature control element the most according to claim 1, it is characterised in that the mounting means of described shell is divided into and covering completely
Lid formula or embedded.
A kind of temperature control element the most according to claim 2, it is characterised in that the mounting means of described shell is for being completely covered
During formula, the aperture of through hole is equal to the upper surface diameter of block, and thermometric plate front is in the same size with the upper surface of block and at thermometric
The edgewise that the processing of edges of boards edge is downward, is socketed in the top of block by thermometric version.
A kind of temperature control element the most according to claim 2, it is characterised in that the mounting means of described shell is embedded
Time, it is divided into two kinds: a kind of for being completely embedded into formula, i.e. the through hole of lid upper surface coordinates with thermometric plate size, by complete for thermometric plate
In the through hole of the through hole embedding lid upper surface；Another kind is half built-in, will be divided into upper and lower two-layer by thermometric plate, and upper strata processes
One boss, the height of boss and the consistency of thickness of lid upper surface or slightly larger than cap surface thickness, the planar dimension of boss with
Through hole is adaptive, and the planar dimension of lower floor is adaptive with lid upper surface, is put into from bottom to top in block by thermometric plate, and boss embeds logical
Kong Zhong, the back side of lid upper surface is close to by thermometric plate lower floor.
A kind of temperature control element the most according to claim 4, it is characterised in that described thermometric plate and the fixed form of block
For: when being completely embedded into formula, the clear size of opening being slightly larger in dimension than lid upper surface of thermometric plate, fixed form use welding manner or
Tight fit；During half built-in, fixed form uses welding manner, or uses outside mechanical presses block near thermometric version lower floor position
Put, thermometric version is fixed.
A kind of temperature control element the most according to claim 1, it is characterised in that described thermometric back with cannula connection
Having hole, the perforate degree of depth is that bottom hole pitch thermometric plate front is not less than 0.1mm.
A kind of temperature control element the most according to claim 1, it is characterised in that described temperature sensor is NTC single-ended glass seal
Critesistor.
A kind of temperature control element the most according to claim 1, it is characterised in that described temperature sensor uses asphalt mixtures modified by epoxy resin after installing
Temperature sensor is encapsulated in sleeve pipe by the one in fat, silica gel, ceramic glue.
A kind of temperature control element the most according to claim 1, it is characterised in that described block and temperature sensor enclosure material
For aluminum, copper, rustless steel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016201742075 | 2016-03-07 | ||
| CN201620174207 | 2016-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205625574U true CN205625574U (en) | 2016-10-12 |
Family
ID=57077517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620204245.0U Active CN205625574U (en) | 2016-03-07 | 2016-03-16 | Temperature control element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205625574U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742100A (en) * | 2018-05-25 | 2018-11-06 | 九阳股份有限公司 | A kind of food processor |
| CN112525370A (en) * | 2020-12-07 | 2021-03-19 | 句容市博远电子有限公司 | Temperature sensor of steam electric cooker and production method thereof |
-
2016
- 2016-03-16 CN CN201620204245.0U patent/CN205625574U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742100A (en) * | 2018-05-25 | 2018-11-06 | 九阳股份有限公司 | A kind of food processor |
| CN112525370A (en) * | 2020-12-07 | 2021-03-19 | 句容市博远电子有限公司 | Temperature sensor of steam electric cooker and production method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |