CN106996837B - A kind of electric heating vessel heat-sensitive sensor - Google Patents
A kind of electric heating vessel heat-sensitive sensor Download PDFInfo
- Publication number
- CN106996837B CN106996837B CN201710424289.3A CN201710424289A CN106996837B CN 106996837 B CN106996837 B CN 106996837B CN 201710424289 A CN201710424289 A CN 201710424289A CN 106996837 B CN106996837 B CN 106996837B
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- China
- Prior art keywords
- shell
- bottom cover
- thermistor
- lead
- backer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
Abstract
The present invention relates to temperature controller technical fields, refer specifically to a kind of electric heating vessel heat-sensitive sensor；Including shell and thermistor, the shell is hollow tubular construction, and thermistor is disposed in the housing；It is equipped with bottom cover in shell, offers central channel on the lower end surface of bottom cover, thermistor is embedded in central channel；Bottom cover opens up that there are two the threading gap of connection central channel, and the lead drawn from the open end of shell is welded on two pins of thermistor, is equipped with the tension disk being cooperatively connected with lead in shell, and filled with sealant in the open end of shell；Structure of the invention is reasonable, and thermistor is immobilized in the shell between two parties and contacts with thermally conductive end face by bottom cover, and the response speed of thermistor can be improved；Bottom cover and tension disk reduce the dosage of sealant and improve curing rate, shorten the production cycle；Elastic clip cooperates cable clamping interface to clamp lead, and sealant is penetrated into out of tension disk engraved structure, to improve whole tensile strength and insulation performance.
Description
Technical field
The present invention relates to temperature controller technical fields, refer specifically to a kind of electric heating vessel heat-sensitive sensor.
Background technique
With the rise of intelligent appliance equipment, various sensors and micro process terminal are typically arranged on electric heating appliance, from
And the purpose realized and voluntarily adjust the duration and degree of heating, control cooking process.Temperature sensor is then the core of intelligent control, in electric heating appliance
Used temperature sensor is generally top temperature-sensing probe, by contacting with the direct of heating vessel to perceive the duration and degree of heating and culinary art
Progress；This top temperature-sensing probe sensor mostly uses temperature sensing metal shell and thermistor embedding structure, and thermistor draws
Line draws from shell aperture and uses sealant insulation processing.
There are biasing problem between thermistor and metal shell in this encapsulating structure, the infiltration of sealant be will lead to
The response speed of thermistor reduces, thermistor pin and lead weld part close to metal shell so as to cause insulating properties not
Enough, length of embedment of the lead in insulating cement is less and lacks fixed structure, and the tensile strength of lead is poor；And metal shell
Intracavity space needs more sealant to fill, and leads to the raising of cost and needs longer curing time, it is difficult to shorten delivery
It period and enhances production capacities.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide one kind is structurally reasonable, assembling is convenient, rings
Answer that speed is fast, tensile strength is high, glue consumption lacks the electric heating vessel heat-sensitive sensor of quick solidifying.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of electric heating vessel heat-sensitive sensor of the present invention, including shell and thermistor, the shell are hollow
Tubular construction setting and one end of shell be silent setting, thermistor is disposed in the housing and supports with its closed end inner wall
Touching setting；It is equipped with bottom cover in the shell, offers central channel on the lower end surface of bottom cover, thermistor is embedded in central channel；
The bottom cover is opened up there are two the threading gap of connection central channel, and two pins of thermistor are arranged in corresponding threading respectively
It is welded with the lead drawn from the open end of shell on gap, on pin, is equipped with the tension disk being cooperatively connected with lead in shell,
And sealant is filled in the open end of shell.
According to above scheme, the tension disk includes half a month backer and flaring plug, and half a month backer is diameter and casing adaptor
Semi-cylindrical structure setting, expansion slot and two cable clamping interfaces, two cable clamping interfaces point are offered on the section of half a month backer vertically
Other compartment of terrain is set to expansion slot two sides, and the partition part between expansion slot and cable clamping interface constitutes elastic clip；Described two leads
It is arranged in corresponding cable clamping interface respectively, and the front end for being flared plug penetrates in expansion slot the elastic clip and respective side for making its two sides
Lead constitute frictional fit.
According to above scheme, the lower end of the half a month backer is fixedly connected with bottom cover, two cable clamping interfaces and corresponding threading
Gap end is oppositely arranged；Elastic fin, bottom cover, half a month backer, flaring plug are connected between the flaring plug lower end and bottom cover
It is the integral structure of injection molding with elastic fin.
According to above scheme, between the maximum between the lateral wall and half a month backer's perimeter wall corresponding thereto of the flaring plug
It is greater than the diameter of shell away from H.
According to above scheme, bottom cover cutting is in " mountain " font by described two threading gap, is opened up on the side wall of central channel
There is encapsulating mouth.
According to above scheme, the open end of the shell is equipped with ground strip.
The invention has the following beneficial effects: structure of the invention is reasonable, bottom cover thermistor is immobilized in the shell between two parties with it is thermally conductive
End face contact, can be improved the response speed of thermistor；Bottom cover and tension disk constitute the filling part of housing cavity, reduce sealant
Dosage and improve curing rate, shorten the production cycle；Flaring plug makes elastic clip cooperation cable clamping interface clamp lead to improve
Tensile property, two pins and the weld part of lead are respectively in corresponding cable clamping interface, and sealant is out of, tension disk engraved structure
It penetrates into, to improve whole tensile strength and insulation performance.
Detailed description of the invention
Fig. 1 is side, sectional structural schematic diagram of the invention；
Fig. 2 is front cross-sectional structural schematic diagram of the invention；
Fig. 3 is bottom cover and tension disk part enlarged structure schematic diagram of the invention.
In figure:
1, shell；2, bottom cover；3, half a month backer；4, sealant；11, ground strip；12, thermistor；13, pin；14, draw
Line；21,；22, gap is threaded；23, encapsulating mouth；31, flaring plug；32, expansion slot；33,；34, elastic clip；35, elastic fin.
Specific embodiment
Technical solution of the present invention is illustrated with embodiment with reference to the accompanying drawing.
As shown in Figure 1-3, a kind of electric heating vessel heat-sensitive sensor of the present invention, including shell 1 and thermistor 12,
The shell 1 is that hollow tubular construction is arranged and one end of shell 1 is silent setting, and thermistor 12 is set to the shell 1
It is interior and with its closed end inner wall contradict be arranged；It is equipped with bottom cover 2 in the shell 1, offers central channel on the lower end surface of bottom cover 2
21, thermistor 12 is embedded in central channel 21；The bottom cover 2 is opened up there are two the threading gap 22 of connection central channel 21, hot
Two pins 13 of quick resistance 12 are arranged in respectively on corresponding threading gap 22, and the opening from shell 1 is welded on pin 13
The lead 14 drawn is held, is equipped with the tension disk being cooperatively connected with lead 14 in shell 1, and filled with close in the open end of shell 1
Sealing 4；The bottom cover 2 constitutes fixation and interstitital texture in shell 1 with tension disk, and the dosage that can reduce sealant 4 improves admittedly
Change speed, bottom cover 2 fixes thermistor 12 by the central channel 21 of its lower end surface, to solve its biasing problem to improve response
Speed；Tension disk is fixedly clamped lead 14, is spaced apart from each other lead 14, pin 13 and shell 1 to improve insulating properties, avoids
Thermistor 12 and weld part are damaged, improve its tensile property, the sealant 4 of the filling will be into will wrap up lead 14
With the weld part of pin 13, the insulation performance of sensor is further improved.
The tension disk includes half a month backer 3 and flaring plug 31, and half a month backer 3 is the semicolumn that diameter is adapted to shell 1
Body structure setting, expansion slot 32 and two cable clamping interfaces 33 are offered on the section of half a month backer 3 vertically, and two cable clamping interfaces 33 are distinguished
Compartment of terrain is set to 32 two sides of expansion slot, and the partition part between expansion slot 32 and cable clamping interface 33 constitutes elastic clip 34；Described two
A lead 14 is arranged in respectively in corresponding cable clamping interface 33, and the front end for being flared plug 31 penetrates the bullet for making its two sides in expansion slot 32
Property intermediate plate 34 and respective side lead 14 constitute frictional fit；The half a month backer 3 is oppositely arranged with flaring plug 31 to respectively
It is contradicted with 1 inner wall of shell, lead 14 is arranged in cable clamping interface 33, and 31 insertion expansion slot 32 of flaring plug makes the elastic clip of its two sides
34 to two sides deformation, and then clamps the lead 14 in cable clamping interface 33；After preferred 31 insertion expansion slots 32 of flaring plug tension disk with
In interference fit between shell 1, to make tension disk and lead 14 integrally be fixed in shell 1, and then pouring into for sealant 4 can
Further increase the tensile strength of lead 14,13 weld part of protection pin and thermistor 12.
The lower end of the half a month backer 3 is fixedly connected with bottom cover 2, two cable clamping interfaces 33 and corresponding 22 end of threading gap
It is oppositely arranged；The flaring, which is filled in, is connected with elastic fin 35 between 31 lower ends and bottom cover 2, bottom cover 2, half a month backer 3, flaring plug 31
It is the integral structure of injection molding with elastic fin 35；It is when assembly that two pins 13 are laterally inserted from corresponding threading gap 22
Afterwards, thermistor 12 is mentioned on the whole into insertion central channel 21, and two leads 14 are respectively clamped into corresponding cable clamping interface 33, make to weld
Portion is in the cable clamping interface 33 between flaring plug 31 and bottom cover 2, and 31 insertion expansion slot 32 of flaring plug is another after keeping lead 14 fixed
Body is packed into shell 1, and assembly efficiency and yield rate can be improved.
Maximum spacing H between the lateral wall and 3 perimeter wall of half a month backer corresponding thereto of the flaring plug 31 is greater than shell
The diameter of body 1, the flaring plug 31 are integrally formed cylindrical structure with half a month backer 3, and the two sides of flaring plug 31 cut off and constitute
Agree with the stopper structure of flaring slot 32, elastic module existing for flaring plug 31 and flaring slot 32 was in it between shell 1
Be full of cooperation, and then be fixed on tension disk in shell 1 by the effect of frictional force, can effectively improve lead 14 tensile strength and
The stability of sensor.
The cutting of bottom cover 2 is in " mountain " font by described two threading gap 22, offers encapsulating mouth on the side wall of central channel 21
23, threading gap 22 cooperates encapsulating mouth 23 that sealant 4 is made to penetrate into 1 bottom of shell, to form whole insulating bag to pin 13
It wraps up in.
The open end of the shell 1 is equipped with ground strip 11.
The above description is only a preferred embodiment of the present invention, thus it is all according to the configuration described in the scope of the patent application of the present invention,
The equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (5)
1. a kind of electric heating vessel heat-sensitive sensor, including shell (1) and thermistor (12), it is characterised in that: the shell (1)
One end for hollow tubular construction setting and shell (1) be silent setting, thermistor (12) be set to the shell (1) it is interior and
It contradicts and is arranged with its closed end inner wall；Bottom cover (2) are equipped in the shell (1), offer central channel on the lower end surface of bottom cover (2)
(21), thermistor (12) is embedded in central channel (21)；The bottom cover (2) open up there are two connection central channel (21) threading
Two pins (13) of gap (22), thermistor (12) are arranged in respectively on corresponding threading gap (22), on pin (13)
It is welded with the lead (14) drawn from the open end of shell (1), is equipped with the clamp being cooperatively connected with lead (14) in shell (1)
Device, and sealant (4) are filled in the open end of shell (1)；
The tension disk includes half a month backer (3) and flaring plug (31), and half a month backer (3) is half that diameter is adapted to shell (1)
Cylindrical structure is arranged, and offers expansion slot (32) and two cable clamping interfaces (33), two cards on the section of half a month backer (3) vertically
Wire casing (33) is set to expansion slot (32) two sides with being respectively separated, and the partition part between expansion slot (32) and cable clamping interface (33) is constituted
Elastic clip (34)；Described two leads (14) are arranged in respectively in corresponding cable clamping interface (33), and are flared the front end of plug (31)
The lead (14) for penetrating the elastic clip (34) and respective side that make its two sides in expansion slot (32) constitutes frictional fit.
2. electric heating vessel heat-sensitive sensor according to claim 1, it is characterised in that: the lower end of the half a month backer (3)
It is fixedly connected with bottom cover (2), two cable clamping interfaces (33) are oppositely arranged with corresponding threading gap (22) end；The flaring plug
(31) it is connected between lower end and bottom cover (2) elastic fin (35), bottom cover (2), half a month backer (3), flaring plug (31) and elasticity
Fin (35) is the integral structure of injection molding.
3. electric heating vessel heat-sensitive sensor according to claim 2, it is characterised in that: the lateral wall of the flaring plug (31)
The maximum spacing H between half a month backer (3) perimeter wall corresponding thereto is greater than the diameter of shell (1).
4. electric heating vessel heat-sensitive sensor according to claim 1, it is characterised in that: described two threading gap (22) will
Bottom cover (2) cutting is in " mountain " font, offers encapsulating mouth (23) on the side wall of central channel (21).
5. electric heating vessel heat-sensitive sensor according to claim 1, it is characterised in that: on the open end of the shell (1)
Equipped with ground strip (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710424289.3A CN106996837B (en) | 2017-06-07 | 2017-06-07 | A kind of electric heating vessel heat-sensitive sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710424289.3A CN106996837B (en) | 2017-06-07 | 2017-06-07 | A kind of electric heating vessel heat-sensitive sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106996837A CN106996837A (en) | 2017-08-01 |
| CN106996837B true CN106996837B (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710424289.3A Active CN106996837B (en) | 2017-06-07 | 2017-06-07 | A kind of electric heating vessel heat-sensitive sensor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063497A (en) * | 2017-06-07 | 2017-08-18 | 佛山市程显科技有限公司 | A kind of electric heating vessel temperature sensor |
| CN108020341B (en) * | 2017-12-08 | 2019-12-03 | 佛山市川东磁电股份有限公司 | A kind of miniature thermosensitive probe packaging method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1175333A (en) * | 1967-04-28 | 1969-12-23 | Bosch Gmbh Robert | Improvements in or relating to Temperature Sensers for Internal Combustion Engines. |
| JPS56114732A (en) * | 1980-02-15 | 1981-09-09 | Hitachi Ltd | Temperature measuring instrument for sucked air of internal combustion engine |
| CN104316212A (en) * | 2014-10-15 | 2015-01-28 | 孝感华工高理电子有限公司 | Rapid sensing high temperature resistant temperature sensing probe |
| CN105004443A (en) * | 2014-08-21 | 2015-10-28 | 深圳市敏杰电子科技有限公司 | Anti-thermal radiation NTC temperature sensor and application thereof |
| CN205506254U (en) * | 2016-01-26 | 2016-08-24 | 深圳顺络电子股份有限公司 | NTC temperature sensor |
| CN205940796U (en) * | 2016-08-17 | 2017-02-08 | 武汉汉升汽车传感系统有限责任公司 | High temperature, high sensitivity's temperature sensor |
-
2017
- 2017-06-07 CN CN201710424289.3A patent/CN106996837B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1175333A (en) * | 1967-04-28 | 1969-12-23 | Bosch Gmbh Robert | Improvements in or relating to Temperature Sensers for Internal Combustion Engines. |
| JPS56114732A (en) * | 1980-02-15 | 1981-09-09 | Hitachi Ltd | Temperature measuring instrument for sucked air of internal combustion engine |
| CN105004443A (en) * | 2014-08-21 | 2015-10-28 | 深圳市敏杰电子科技有限公司 | Anti-thermal radiation NTC temperature sensor and application thereof |
| CN104316212A (en) * | 2014-10-15 | 2015-01-28 | 孝感华工高理电子有限公司 | Rapid sensing high temperature resistant temperature sensing probe |
| CN205506254U (en) * | 2016-01-26 | 2016-08-24 | 深圳顺络电子股份有限公司 | NTC temperature sensor |
| CN205940796U (en) * | 2016-08-17 | 2017-02-08 | 武汉汉升汽车传感系统有限责任公司 | High temperature, high sensitivity's temperature sensor |
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| CN106996837A (en) | 2017-08-01 |
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