CN108663134A - A kind of NTC temperature probes - Google Patents
A kind of NTC temperature probes Download PDFInfo
- Publication number
- CN108663134A CN108663134A CN201810539179.6A CN201810539179A CN108663134A CN 108663134 A CN108663134 A CN 108663134A CN 201810539179 A CN201810539179 A CN 201810539179A CN 108663134 A CN108663134 A CN 108663134A
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- China
- Prior art keywords
- temperature
- ntc
- sensitive cap
- support tube
- ntc thermistor
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Classifications
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
Abstract
The present invention provides a kind of NTC temperature probes, including temperature sensing component, signal transduction component for external controller, and the slide assemblies to stretch for controlling temperature sensing component, the temperature sensing component includes NTC thermistor and temperature-sensitive cap, the bead fitting of the NTC thermistor is arranged in temperature-sensitive cap, and the lead of the NTC thermistor is electrically connected with signal transduction component, and the slide assemblies are connected on temperature-sensitive cap.The NTC temperature probes carry out temperature-sensitive by the high temperature-sensitive cap of small, thermal coefficient and the NTC thermistor being fitted in temperature-sensitive cap to the cooker on gas-cooker, temperature conduction is fast, energy fast accurate feedback temperature, to the energy quick automatic cut-off fuel gas buring when reaching certain temperature, it realizes gas-cooker anti-dry purpose, improves the safety of gas-cooker burning.
Description
Technical field
The invention belongs to technical field of temperature control, and in particular to a kind of NTC temperature probes are used for gas-cooker anti-dry.
Background technology
Gas-cooker is the highest kitchen appliance product of our daily use of households frequencies, due to the use of be inflammable and explosive danger
Gas causes the generation of many dangerous incidents of injury every year because of improper use or other accidents；Look back gas cooker more than 30 years
Development course, since most without any effective safeguard protection, develop finally with " ion inductive needle "（Initial stage）" heat
Galvanic couple "（Middle and later periods）State's standard type of gas-cooker is also entered for the flame-out safeguard protection epoch flame-out protector of representative
System, can more become consumer the product standard configuration chosen of safe and secure；This flame-out protector, mainly in strong wind
Or the spillings such as soup have been when having put out the flame of gas-cooker, can rapid automatic self-closing gas access, reached by terminating gas supply
The effect of safeguard protection.
However, being restricted by the limitation that flame-out safeguard protection acts on, existing flame-out protector still prevents
The not generation of safety accident, it is half-hearted in culinary art that this is primarily due to young mainstream consumer groups, makes a phone call, sees electricity
Depending on, play mobile phone, or even forget close fire, be also particularly suitable for the mid-aged population for being easy to forget things, can all be easy to cause and dryout pot, cause
The generation of kitchen equal security incidents on fire, causes the loss of consumer's lives and properties；It is known that the oil when the bottom of a pan is heated to
At 280 DEG C or so, a kind of chemical carcinogen being " benzene is than pyrene " is will produce, the immunity of cell can be destroyed after sucking, is drawn
Cytogene mutation is played, the damage of DNA is caused, induces cell tissue canceration（Cancer thereby produces）, Chinese women obtains lung cancer
Ratio be twice of male, it is key reason to suck a large amount of " benzene is than pyrenes ".
Therefore, it is necessary to design a kind of anti-dry burning device, security function and the effect of gas-cooker can be more comprehensively improved, together
When the generation of harmful substance will also be greatly decreased, promote the health of cooker.
Invention content
The object of the present invention is to provide a kind of NTC temperature probes, it can quickly sense, high temperature resistant, be realized with a low cost gas-cooker
Anti-dry purpose.
The technical solution of the present invention is to provide a kind of NTC temperature probes, including temperature sensing component, are used for external control
The signal transduction component of device, and the slide assemblies flexible for controlling temperature sensing component；The temperature sensing component includes
The bead fitting of NTC thermistor and temperature-sensitive cap, the NTC thermistor is arranged in temperature-sensitive cap, the NTC thermistor
Lead is electrically connected with signal transduction component, and the slide assemblies are connected on temperature-sensitive cap.
Further, the signal transduction component includes wire conductor, one end of the wire conductor and NTC thermistor
Lead crimped by resistance welding or connects end altogether, the other end of wire conductor is electrically connected by connecting terminal and external controller
It connects.
Further, the slide assemblies include support tube, supporting rod, elastic component and stainless steel outer cover, the support tube
It is through through-hole structure with supporting rod, one end of the elastic component is connected on the temperature-sensitive cap, the other end of elastic component and institute
Supporting rod connection is stated, the elastic component is socketed in the support tube, and one end sliding that the supporting rod is connect with elastic component
It is connected on support tube madial wall, the stainless steel outer cover is socketed on the outside of the support tube.
Further, the support tube be up-small and down-big ladder tubular structure, upper part reentrant diameter be 6.5 ±
0.2mm, lower diameter be 8.7 ± 0.1mm, bottom turn up and with support tube wall it is vertical, in the lower part tube wall of the support tube
It is 1~1.2mm that there are multiple guide grooves, the guiding groove depth in side along its circumferential spaced set, and width is 1.2~1.5mm, long
Spend 28~29mm；The bottom of the support tube is connect with the temperature-sensitive cap madial wall.
Further, the supporting rod one end is crimped with facing ring, the facing ring internal diameter and the supporting rod internal diameter
Identical, facing ring outer diameter is 7.8 ± 0.1mm, and thickness is 0.5~1.5mm, offer on the facing ring on the support tube
The corresponding groove of guide groove, the recess width are 2.3 ± 0.1mm, depth 1.4mm.
Further, the stainless steel outer cover be straight structure, and one end have parabolic shape bending segment with
And to stainless steel outer cover varus and the varus section parallel with the cover wall of stainless steel outer cover, the varus section is outer with the support tube
Side wall connects, and the length of the varus section is 3~6mm, and the internal diameter of the stainless steel outer cover is bigger by 2 than the support pipe outside diameter~
3mm, the outer diameter of the stainless steel outer cover is identical as the temperature-sensitive cap outer diameter, and the end of the stainless steel outer cover and the temperature-sensitive
The gap of 0~1mm is equipped between cap.
Further, the bottom surface of the temperature-sensitive cap is circle, and outer diameter is 10~14mm, and thickness is 0.5~1mm, and its
Concentric inner ring and outer ring is equipped on bottom surface in the same direction, the outer ring outer diameter is identical as bottom surface outer diameter, 0.8~1.2mm of thickness, height
The bead of 1.5~3mm, 0.8~1.5mm of the inner ring thickness, 5~8mm of height, the NTC thermistor are arranged in the sense
In the inner ring of warm cap and the bottom surface of fitting temperature-sensitive cap, the slide assemblies are connected between the outer ring and inner ring of the temperature-sensitive cap.
Further, high-temp glue is filled between the NTC thermistor and the inner ring of the temperature-sensitive cap.
Further, protection tube, protection tube one end fitting are socketed with outside the lead of the NTC thermistor
The bead of NTC thermistor, the other end are shorter than 5~8mm of lead of the NTC thermistor.
Compared with prior art, beneficial effects of the present invention：
(1) this NTC temperature probes provided by the invention by the high temperature-sensitive cap of small, thermal coefficient and are fitted in temperature-sensitive
NTC thermistor in cap carries out temperature-sensitive to the cooker on gas-cooker, and temperature conduction is fast, energy fast accurate feedback temperature, to
The energy quick automatic cut-off fuel gas buring when reaching certain temperature, realizes gas-cooker anti-dry purpose, improves gas-cooker burning
Safety.
(2) this NTC temperature probes provided by the invention realize stretching for temperature sensing component by the effect of slide assemblies
Contracting ensures the close contact between temperature sensing component and cooker, it is ensured that thermometric to adapt to cooker of different shapes
Precisely.
The present invention is described in further details below with reference to attached drawing.
Description of the drawings
Fig. 1 is the explosive view of NTC temperature probes of the present invention；
Fig. 2 is the cross-sectional view of NTC temperature probes of the present invention；
Fig. 3 is temperature-sensitive cap structure schematic diagram in NTC temperature probes of the present invention；
Fig. 4 is supporting bar structure schematic diagram in NTC temperature probes of the present invention；
Fig. 5 is supporting tube structure schematic diagram in NTC temperature probes of the present invention；
Fig. 6 is stainless steel cover structure schematic diagram in NTC temperature probes of the present invention；
Fig. 7 is the cross-sectional view of stainless steel outer cover in NTC temperature probes of the present invention；
Fig. 8 is that supporting rod and support tube are slidably connected schematic diagram in NTC temperature probes of the present invention；
Fig. 9 is that supporting rod and support tube are slidably connected side view in NTC temperature probes of the present invention；
Figure 10 is the working state schematic representation of NTC temperature probes of the present invention；
Figure 11 is the working state schematic representation of NTC temperature probes of the present invention.
Reference sign：1, NTC thermistor；2, protection tube；3, double and from clipper tube；4, wire conductor；5, seat is moulded；
6, temperature-sensitive cap；7, elastic component；8, supporting rod；9, support tube；10, stainless steel outer cover；11, high-temp glue；12, facing ring；13, bottom
Face；14, outer ring；15, inner ring；16, groove；17, guide groove；18, bending segment；19, varus section；20, cooker；21, grate.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "center", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
As depicted in figs. 1 and 2, a kind of NTC temperature probes, including temperature sensing component are present embodiments provided, for outer
Connect the signal transduction component of controller, and the slide assemblies flexible for controlling temperature sensing component, the temperature sensing group
Part includes NTC thermistor 1 and temperature-sensitive cap 6, and the bead fitting of the NTC thermistor 1 is arranged in temperature-sensitive cap 6, the NTC
The lead of thermistor 1 is electrically connected with signal transduction component, and the slide assemblies are connected on temperature-sensitive cap 6.Using the NTC thermometrics
When probe carries out thermometric, temperature-sensitive cap 6 is contacted with cooker 20, since the bead of NTC thermistor 1 is close to temperature-sensitive cap 6, because
And temperature of cookware can quickly be conducted to NTC thermistor 1, and temperature signal is transferred to by signal transduction component by its lead,
And then it is transferred to external controller, controller controls the opening and closing to cooker heating process according to the temperature signal of reception；And herein
Exposure level between temperature-sensitive cap 6 and cooker is adjusted by slide assemblies during thermometric, ensures that temperature-sensitive cap 6 closely connects with cooker
It touches, so that it is guaranteed that thermometric is accurate.
The embodiment of refinement, the temperature-sensitive cap 6 are process using the higher metallic copper of thermal coefficient and its alloy, profit
It is quickly conducted in temperature, since temperature-sensitive cap 6 need to be in close contact with cooker, thus preferably implements wear-resisting plating in 6 outer surface of temperature-sensitive cap
Layer processing, the specific structure is shown in FIG. 3, and the bottom surface 13 of temperature-sensitive cap 6 is circle, and outer diameter is 10~14mm, and thickness is 0.5~
1mm, and concentric inner ring 15 and outer ring 14 are equipped on its bottom surface 13 in the same direction, 14 outer diameter of the outer ring is identical as 13 outer diameter of bottom surface,
0.8~1.2mm of thickness, height 1.5~3mm, 15 0.8~1.5mm of thickness of the inner ring, 5~8mm of height, the NTC temperature-sensitives electricity
The bead of resistance 1 is arranged in the inner ring 15 of the temperature-sensitive cap 6 and is bonded the bottom surface 13 of temperature-sensitive cap 6, and the slide assemblies are connected to
Between the outer ring 14 and inner ring 15 of the temperature-sensitive cap 6, on the one hand the outer ring 14 of temperature-sensitive cap 6 and the design of inner ring 15 can be fixed effectively
Slide assemblies are connected, on the other hand the bead of NTC thermistor 1 can be protected by inner ring 15, avoid NTC thermistor
1 bead is contacted with other parts so that the bead of NTC thermistor 1 only passes through the bottom surface 13 of the temperature-sensitive cap 6 of thinner thickness
Temperature of cookware is sensed, so that it is guaranteed that the precision of thermometric.Optimization, the inner ring of the NTC thermistor 1 and the temperature-sensitive cap 6
It is filled and is fixed by high-temp glue 11 between 15, further NTC thermistor 1 protected by high-temp glue 11 so that the survey
Temperature probe can work long hours in hot environment.In addition, in order to ensure the safety of temperature sensing component thermometric circuit, it is described
Protection tube 2 is socketed with outside the lead of NTC thermistor 1, protection tube 2 is made using heat safe isolation material, described anti-
2 one end of protecting pipe is bonded the bead of NTC thermistor 1, and the other end is shorter than 5~8mm of lead of the NTC thermistor 1.
As depicted in figs. 1 and 2, the signal transduction component includes two wire conductors 4, two wire conductors 4
One end is crimped with two leads of NTC thermistor 1 by resistance welding or connects end altogether respectively, the other end of wire conductor 4
It is mounted on after being crimped by connecting terminal in modeling seat 5, convenient for being electrically connected with external controller.Optimization, two wire conductors 4
Be inserted in respectively it is double and from 3 holes of clipper tube, by double and protected from clipper tube 3 to wire conductor 4, and described double and from clipper tube 3
Length facilitates wire conductor 4 to be connect with external controller than 4 short 30~50mm of wire conductor.
In a kind of embodiment, as depicted in figs. 1 and 2, the slide assemblies include support tube 9, supporting rod 8, elastic component 7
With stainless steel outer cover 10, the support tube 9 and supporting rod 8 be through through-hole structure, when assembly and connection, the NTC thermistor 1
Lead and signal transduction component pass through elastic component 7, supporting rod 8 and support tube 9, specifically, the elastic component 7 be high temperature resistant material
The spring of material, both ends flatten, and 7 outer diameter of elastic component is 7.0 ± 0.2mm, and length is 50 ± 1mm, and one end is connected to the temperature-sensitive
On cap 6, the other end of elastic component 7 is connect with the supporting rod 8, and the elastic component 7 is socketed in the support tube 9, and described
One end that supporting rod 8 is connect with elastic component 7 is slidably connected on 9 madial wall of support tube, the bottom surface 13 application effect to temperature-sensitive cap 6
When power, acted on by the elastic force of elastic component 7 so that opposite sliding occurs between support tube 9 and supporting rod 8, to realize the thermometric
Probe stretches, and the stainless steel outer cover 10 is socketed in 8 outside of the support tube, protects flame direct by stainless steel outer cover 10
The inside of the calcination temperature probe, prevents air from flowing, it is ensured that thermometric is accurate.
Specifically, as shown in figure 5, the support tube 9 be up-small and down-big ladder tubular structure, upper part reentrant diameter
For 6.5 ± 0.2mm, lower diameter is 8.7 ± 0.1mm, and bottom is turned up and vertical with the tube wall of support tube 9, upper part necking
Design can limit the shaking of supporting rod 8 so that 360 ° of deviation angles of supporting rod 8 do not influence to stretch all within the scope of 0-7 °；
The Eversible structure of its bottom is connected between the outer ring 14 and inner ring 15 of the temperature-sensitive cap 6, together with 6 riveting of temperature-sensitive cap；Institute
State on the inside of the lower part tube wall of support tube 9 has multiple guide grooves 17 along its circumferential spaced set, for realizing between supporting rod 8
Opposite sliding process, 17 depth of the guide groove be 1~1.2mm, width be 1.2~1.5mm, 28~29mm of length.Such as Fig. 4
Shown, 8 one end of the supporting rod is crimped with facing ring 12, which is copper ring, internal diameter and 7 internal diameter of the supporting rod
Identical, 12 outer diameter of facing ring is 7.8 ± 0.1mm, and thickness is 0.5~1.5mm, is offered and the support on the facing ring 12
The corresponding groove 16 of 17 quantity of guide groove and position on pipe 9,16 width of the groove are 2.3 ± 0.1mm, depth 1.4mm；Such as
Shown in Fig. 8 and Fig. 9, supporting rod 8 penetrates in the support tube 9, and the one-to-one correspondence of guide groove 17 is slidably connected at described on support tube 9
In 12 upper groove 16 of facing ring, one end that supporting rod 8 is equipped with facing ring 12 is sliding in the lower part large diameter pipe part of support tube 9
Dynamic, sliding stroke ranging from 0~25mm, sliding stroke range is big, to ensure the temperature-sensitive cap 6 of temperature sensing component with not
With the fitting of cookware base, and facing ring 12 and supporting rod 8 can be limited by necking in 9 top of support tube, is protected simultaneously
Card cooker temperature probe when compressing temperature-sensitive cap 6 not will produce excessive shaking, further ensure the precision of thermometric.
As shown in Figure 6 and Figure 7, the stainless steel outer cover 10 is straight structure, and the outer diameter of straight tube is 15 ± 0.5mm, and
One end has the bending segment 18 of parabolical and to 10 varus of stainless steel outer cover and parallel with the cover wall of stainless steel outer cover 10
Varus section 19, the internal diameter of varus section 19 is 8.55 ± 0.05mm, lateral wall of 19 riveting of varus section in the support tube 9
On, the length of the varus section is 3~6mm, ensures the bonding strength between stainless steel outer cover 10 and support tube 9, and ensure to prop up
Stay tube 9 is located at 10 center of stainless steel outer cover and is not easy eccentric shaking, simultaneously support pipe 9 this structure design may make it is described not
The internal diameter for 10 straight drum part of steel outer cover of becoming rusty is bigger 2~3mm than 9 outer diameter of the support tube, in stainless steel outer cover 10 and support tube 9
Between form cavity for preventing air from flowing；The outer diameter of the stainless steel outer cover 10 is identical as 6 outer diameter of temperature-sensitive cap, and institute
The gap for being equipped with 0~1mm between the end of stainless steel outer cover 10 and the temperature-sensitive cap 6 is stated, stainless steel outer cover 10 is avoided directly to lead
Heat influences the precision of thermometric to temperature-sensitive cap 6.
In addition, in a kind of embodiment, as shown in FIG. 10 and 11, by above-mentioned NTC temperature probes for the specific of gas-cooker
Application mode, the NTC temperature probes are located at 21 center of grate, and its top is higher than the grate when installation of NTC temperature probes
21 upper surfaces ensure that the temperature-sensitive cap 6 is contacted with the bottom of cooker 20 on the grate 21, outside the signal transduction component with this
Connect the controller electrical connection of control burner for gas stove.Cooker 20 is placed on grate 21, during this bottom of cooker 20 compared with
It is low（As shown in Figure 10）When, the temperature-sensitive cap 6 of NTC temperature probes is compressed in 20 bottom of cooker, and the bottom of cooker 20 is higher（Such as Figure 11
It is shown）When, due to being higher than 21 upper surface of the grate at the top of NTC temperature probes, 20 bottom of cooker also compressible NTC temperature probes
Be in close contact with the temperature-sensitive caps 6 of NTC temperature probes, to realize for cooker of different shapes, temperature sensing component with cook a meal
It can be in close contact between tool, it is applied widely.The gas-cooker is when detecting that temperature is more than preset range, signal transmission
It is handled accordingly after to controller, the air source for then cutting off burner closes burning；NTC temperature probes and 20 bottom of cooker parent
Contiguity is touched, when the moisture content in cooker 20 is hotted plate it is dry after, NTC temperature probes monitor in cooker 20 temperature close to 260 degree of setting value（It can
It is arbitrarily set according to actual conditions）, the gas supply of controller control intelligent pulse cut-out gas-cooker is to reach auto extinguishing stopping
The effect of heating, can also when user opens fire and forgets to sit pot, NTC temperature probes also can automatic sensing arrive, and in 2 minutes from
Dynamic cut-out air source is flame-out by fire, plays anti-dry protective effect.
In conclusion this NTC temperature probes provided by the invention by the high temperature-sensitive cap of small, thermal coefficient and
The NTC thermistor being fitted in temperature-sensitive cap carries out temperature-sensitive to the cooker on gas-cooker, and temperature conduction is fast, can fast accurate feedback
Temperature realizes gas-cooker anti-dry purpose to the energy quick automatic cut-off fuel gas buring when reaching certain temperature, improves combustion gas
The safety of stove burning.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
Be with the present invention it is same or analogous design all belong to the scope of protection of the present invention within.
Claims (9)
1. a kind of NTC temperature probes, it is characterised in that：Including temperature sensing component, it to be used for the signal transduction group of external controller
Part, and the slide assemblies flexible for controlling temperature sensing component；The temperature sensing component includes NTC thermistor and sense
The bead fitting of warm cap, the NTC thermistor is arranged in temperature-sensitive cap, the lead and signal transduction of the NTC thermistor
Component is electrically connected, and the slide assemblies are connected on temperature-sensitive cap.
2. NTC temperature probes as described in claim 1, it is characterised in that：The signal transduction component includes wire conductor, institute
The one end for stating wire conductor is crimped with the lead of NTC thermistor by resistance welding or connects end altogether, wire conductor it is another
End is electrically connected by connecting terminal with external controller.
3. NTC temperature probes as described in claim 1, it is characterised in that：The slide assemblies include support tube, supporting rod,
Elastic component and stainless steel outer cover, the support tube and supporting rod are through through-hole structure, and one end of the elastic component is connected to institute
It states on temperature-sensitive cap, the other end of elastic component is connect with the supporting rod, and the elastic component is socketed in the support tube, and described
One end that supporting rod is connect with elastic component is slidably connected on support tube madial wall, and the stainless steel outer cover is socketed in the support
On the outside of pipe.
4. NTC temperature probes as claimed in claim 3, it is characterised in that：The support tube is that up-small and down-big ladder is hollow
Pipe structure, upper part reentrant diameter be 6.5 ± 0.2mm, lower diameter be 8.7 ± 0.1mm, bottom turn up and with support tube wall
Vertically, it is 1 to have multiple guide grooves, the guiding groove depth along its circumferential spaced set on the inside of the lower part tube wall of the support tube
~1.2mm, width are 1.2~1.5mm, 28~29mm of length；The bottom of the support tube is connect with the temperature-sensitive cap madial wall.
5. NTC temperature probes as claimed in claim 4, it is characterised in that：The supporting rod one end is crimped with facing ring, institute
It is identical as the supporting rod internal diameter to state facing ring internal diameter, facing ring outer diameter is 7.8 ± 0.1mm, and thickness is 0.5~1.5mm, described
Groove corresponding with guide groove on the support tube is offered on facing ring, the recess width is 2.3 ± 0.1mm, depth
1.4mm。
6. NTC temperature probes as claimed in claim 3, it is characterised in that：The stainless steel outer cover is straight structure, and its
One end has the bending segment of parabolic shape and to stainless steel outer cover varus and the varus parallel with the cover wall of stainless steel outer cover
Section, the varus section are connect with the lateral wall of the support tube, and the length of the varus section is 3~6mm, the stainless steel outer cover
Internal diameter it is bigger 2~3mm than the support pipe outside diameter, the outer diameter of the stainless steel outer cover is identical as the temperature-sensitive cap outer diameter, and institute
State the gap that 0~1mm is equipped between the end of stainless steel outer cover and the temperature-sensitive cap.
7. NTC temperature probes as described in claim 1, it is characterised in that：The bottom surface of the temperature-sensitive cap is circle, and outer diameter is
10~14mm, thickness is 0.5~1mm, and is equipped with concentric inner ring and outer ring, the outer ring outer diameter and bottom surface on its bottom surface in the same direction
Outer diameter is identical, 0.8~1.2mm of thickness, height 1.5~3mm, 0.8~1.5mm of the inner ring thickness, highly 5~8mm, described
The bead of NTC thermistor is arranged in the inner ring of the temperature-sensitive cap and is bonded the bottom surface of temperature-sensitive cap, the slide assemblies connection
Between the outer ring and inner ring of the temperature-sensitive cap.
8. NTC temperature probes as claimed in claim 7, it is characterised in that：The NTC thermistor is interior with the temperature-sensitive cap
High-temp glue is filled between circle.
9. NTC temperature probes as described in claim 1, it is characterised in that：It is socketed with outside the lead of the NTC thermistor anti-
Protecting pipe, the bead of protection tube one end fitting NTC thermistor, the other end are shorter than drawing for the NTC thermistor
5~8mm of line.
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| CN109899841A (en) * | 2019-04-02 | 2019-06-18 | 孝感华工高理电子有限公司 | Gas-cooker protective device |
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