CN205449317U - Temperature sensor of accurate temperature measurement - Google Patents
Temperature sensor of accurate temperature measurement Download PDFInfo
- Publication number
- CN205449317U CN205449317U CN201620190760.8U CN201620190760U CN205449317U CN 205449317 U CN205449317 U CN 205449317U CN 201620190760 U CN201620190760 U CN 201620190760U CN 205449317 U CN205449317 U CN 205449317U
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- China
- Prior art keywords
- thermistor
- critesistor
- temperature
- sensor
- support
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- Expired - Fee Related
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Abstract
The utility model discloses a temperature sensor of accurate temperature measurement, including the sensor housing, a thermistor, the 2nd thermistor and thermistor support, a thermistor and the 2nd thermistor set up on the thermistor support, have the concave arc in the middle of the the sensor housing, are that temperature sensor's temperature sensing is regional, and the the sensor housing both ends are equipped with the plane section and are used for coordinating thermistor 0, a thermistor is different with temperature characteristic with the 2nd thermistor resistance, and both establish ties or parallel combination, thermistor support and the sensor housing riveting fixed.
Description
Technical field
This utility model relates to the temperature sensor of a kind of domestic electric heating cooking appliance.
Background technology
At present, the domestic electric heating cooking appliance that market is used, such as electric cooker, electric pressure cooking saucepan, electric cooking pot, electric food warmer (electric chafing dish) etc., need the temperature in pot is measured control, it is converted into electronic signal, heater is controlled, it is achieved cooking purpose.
Chinese patent CN204612828U discloses a kind of temperature sensor with multiple protection functions in 2015-09-02; it is applied to the electric heating appliances such as electric cooker; can either avoid being not put into heat-generating disc electrified regulation dry combustion method during interior pot, be prevented from again heat-generating disc intensification overheated.The temperature sensor with multiple protection functions of the present utility model includes aluminium lid, support, spring, fixed plate; described aluminium lid is fixing with support to be connected; by support, critesistor is installed in aluminium lid and hot melt insures; described critesistor and hot melt insurance are respectively sleeved in insulated sleeve, and are connected with the wire led to outside aluminium lid respectively；Described support is located in fixed plate by spring adjustable shelf；It is critical only that described support is fixed with permanent magnet and magnetic reed switch, support is provided with the opening groove towards fixed plate direction between permanent magnet and magnetic reed switch；Described fixed plate is provided with magnetic shield sheet in the position of respective slot.
Chinese patent CN204881904U discloses the temperature sensor for electric cooker of a kind of band ceramic base in 2015-12-16, and it comprises plastic stent, and plastic stent is set with aluminum shell near the side of interior pot；Described aluminum shell is open end near one end of plastic stent, and the one end away from plastic stent is blind end；The thermometric chamber for arranging critesistor is offered and for arranging the insurance chamber of Thermal Cutoffs along described plastic stent axial direction；Described thermometric chamber is parallel with insurance chamber, and all runs through described plastic stent；Described critesistor is encapsulated in thermal conductive ceramic base；Described Thermal Cutoffs comprises the pin for thermometric, and this pin is fixed on heat conductive insulating pad；Described critesistor and Thermal Cutoffs are respectively connected with wire, and wire end is provided for the binding post being plugged on panel；Earth lead is had by rivet on the built-in edges of described aluminum shell；The described end connected wires arranges binding post；The surface configuration of the radial direction of described plastic stent has the draw-in groove for clamping spring.
Including Chinese patent CN204612828U and CN204881904U, prior art is that in detection, pot temperature carries out cooking control, and temperature controller is that plane coordinates with interior pot by arranging temperature controller at interior pot bottom mostly.Easily by extraneous thermal effect, cause measure temperature not in the true temperature of pot, thus cause cooking half-cooked, burn etc. bad.It addition, existing temperature sensor most only one of which critesistor, because the resistance of critesistor is nonlinear change with temperature, therefore measurement error is big, impact culinary art performance.
Utility model content
For the above-mentioned deficiency of prior art, according to embodiment of the present utility model, it is desirable to provide a kind of temperature sensor being susceptible to extraneous thermal effect energy accurately thermometric.
According to embodiment, the temperature sensor of a kind of accurate thermometric that this utility model provides, including sensor outer housing, the first critesistor, the second critesistor and thermistor support, first critesistor and the second critesistor are arranged on thermistor support, having concave arc in the middle of sensor outer housing, sensor outer housing two ends are provided with planar section in order to coordinate contact area；First critesistor and the second critesistor resistance are different with temperature characterisitic, both serial or parallel connection combinations；Thermistor support is fixing with sensor outer housing riveting.
The temperature of interior pot could be accurately measured because sensor needs to contact with interior pot, relative to prior art, this utility model is by the design of concave arc in the middle of sensor outer housing, sensor outer housing is made to only have the planar section at two ends to fit tightly with interior pot, induction region is isolated from the outside, it is to avoid cause measurement error because of the interference of external environment condition；Meanwhile, this utility model leads to the critesistor arranging two different parameters, and two critesistor are combined by connection in series-parallel, can obtain the more preferably thermometric linearity, it is achieved accurately measure.
Accompanying drawing explanation
Fig. 1 is temperature sensor and the installation diagram of interior pot of the accurate thermometric according to this utility model embodiment.
Fig. 2 is the structure for amplifying schematic diagram in A portion in Fig. 1.
Wherein: 1 is interior pot；2 is heater；3 is shell；3-1 is concave arc；3-2 is planar section；4 is the first critesistor；5 is the second critesistor；6 is thermistor support.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment, this utility model is expanded on further.These embodiments are interpreted as being merely to illustrate this utility model rather than limiting protection domain of the present utility model.After having read the content that this utility model is recorded, this utility model can be made various changes or modifications by those skilled in the art, and these equivalences change and modifications and fall into this utility model claim limited range equally.
With reference to Fig. 1, shown in 2, the temperature sensor of a kind of accurate thermometric that this utility model preferred embodiment provides is located in heater 2, described temperature sensor includes: shell the 3, first critesistor the 4, second critesistor 5 and thermistor support 6, as it is shown in figure 1, thermistor support 6 is fixing with sensor outer housing 3 riveting.
As in figure 2 it is shown, there is the temperature-sensitive region that concave arc 3-1, concave arc 3-1 are temperature sensors in the middle of shell 3；Shell 3 two ends are provided with planar section 3-2, planar section 3-2 be sensor with interior pot 1 coordinate contact area, as shown in Figure 1, planar section 3-2 fits tightly with interior pot 1, so, concave arc 3-1 and interior pot 1 form one and close space, can avoid causing measurement error because of the interference of external environment condition, improve certainty of measurement.
In the present embodiment, described first critesistor 4 is different with temperature characterisitic with the resistance of the second critesistor 5, and both are combined by connection in series-parallel, can obtain the more preferably thermometric linearity, it is achieved accurately measure.
Claims (2)
1. the temperature sensor of an accurate thermometric, it is characterized in that, including sensor outer housing, the first critesistor, the second critesistor and thermistor support, first critesistor and the second critesistor are arranged on thermistor support, having concave arc in the middle of sensor outer housing, sensor outer housing two ends are provided with planar section in order to coordinate contact area；First critesistor and the second critesistor resistance are different with temperature characterisitic, both serial or parallel connection combinations；Thermistor support is fixing with sensor outer housing riveting.
The temperature sensor of accurate thermometric the most according to claim 1, is characterized in that, the material of critesistor is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620190760.8U CN205449317U (en) | 2016-03-14 | 2016-03-14 | Temperature sensor of accurate temperature measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620190760.8U CN205449317U (en) | 2016-03-14 | 2016-03-14 | Temperature sensor of accurate temperature measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205449317U true CN205449317U (en) | 2016-08-10 |
Family
ID=56602522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620190760.8U Expired - Fee Related CN205449317U (en) | 2016-03-14 | 2016-03-14 | Temperature sensor of accurate temperature measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205449317U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677383A (en) * | 2017-11-09 | 2018-02-09 | 信宜江东电器科技有限公司 | A kind of baking machine temperature sensor |
| CN107860485A (en) * | 2017-11-30 | 2018-03-30 | 四川泛华航空仪表电器有限公司 | A kind of nickel RTD |
| CN109855757A (en) * | 2017-11-30 | 2019-06-07 | 四川泛华航空仪表电器有限公司 | A kind of temperature-sensitive sub-assembly preparation method of plug-in type nickel resistance temperature sensor |
-
2016
- 2016-03-14 CN CN201620190760.8U patent/CN205449317U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677383A (en) * | 2017-11-09 | 2018-02-09 | 信宜江东电器科技有限公司 | A kind of baking machine temperature sensor |
| CN107860485A (en) * | 2017-11-30 | 2018-03-30 | 四川泛华航空仪表电器有限公司 | A kind of nickel RTD |
| CN109855757A (en) * | 2017-11-30 | 2019-06-07 | 四川泛华航空仪表电器有限公司 | A kind of temperature-sensitive sub-assembly preparation method of plug-in type nickel resistance temperature sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20210314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |