CN113532677A - Insulating type electric pot temperature sensor detection device - Google Patents
Insulating type electric pot temperature sensor detection device Download PDFInfo
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- CN113532677A CN113532677A CN202110967274.8A CN202110967274A CN113532677A CN 113532677 A CN113532677 A CN 113532677A CN 202110967274 A CN202110967274 A CN 202110967274A CN 113532677 A CN113532677 A CN 113532677A
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- groove
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- 238000001514 detection method Methods 0.000 title description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000000741 silica gel Substances 0.000 claims abstract description 56
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 56
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 10
- 239000004677 Nylon Substances 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 8
- 229920001778 nylon Polymers 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000011257 shell material Substances 0.000 description 20
- 230000009286 beneficial effect Effects 0.000 description 13
- 230000006872 improvement Effects 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000467686 Eschscholzia lobbii Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
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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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Nonlinear Science (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to a detecting device for an insulated electric cooker temperature sensor, which comprises: the temperature sensing aluminum cover is characterized in that a heat conducting silica gel plate is fixedly mounted on the inner side wall of the temperature sensing aluminum cover, the heat conducting silica gel plate is far away from the side of the temperature sensing aluminum cover, a support is mounted on the support, a thermistor is mounted on the support and in contact connection with the heat conducting silica gel plate, wires fixedly connected to the two sides of the thermistor penetrate through the inner side of the support, the wires on the two sides are far away from the side of the thermistor and connected with a single chip microcomputer, a spring is clamped on the inner side wall of the temperature sensing aluminum cover, and the support is arranged on the inner side of the spring. Avoided the manual work plus insulation support on thermistor and wire, only need can realize insulating function through the support, and can install thermistor on the support fast, can realize automated production, practice thrift the manpower, improve work efficiency, reduce cost, and thermistor hugs closely the heat conduction silica gel board, makes the thermal reaction rapidly, and the uniformity is high, can avoid causing the electric leakage phenomenon simultaneously.
Description
Technical Field
The invention relates to the technical field of temperature sensors, in particular to a detection device of an insulated electric cooker temperature sensor.
Background
The temperature is a very key physical quantity for controlling the cooking of the intelligent electric rice cooker, the intelligent electric rice cooker can monitor the feasible temperature, judge the possible heating defects, and further discover and process in time, prevent the phenomenon of sticking to the cooker, and set the operation according to the preset temperature, thereby ensuring the cooking quality. The temperature acquisition is carried out by combining the thermistor and the temperature sensor, and then the digital temperature conversion and output are carried out. The prior art has the following defects or shortcomings:
1. the prior temperature sensor device for electric cookers, electric pressure cookers, electric frying pans and the like consists of a thermistor with an axial glass seal and an insulating sleeve, wherein the insulating sleeve is insulated, the thermistor is arranged in the sleeve and has a gap, and the axial glass seal thermistor cannot be effectively and tightly attached to a metal surface, so that the thermal reaction of a product is slow and the consistency is poor;
2. because axial glass seals thermistor and axial two poles of the earth wire and electric wire junction all are naked, need the workman to overlap insulation support at its naked department respectively, work efficiency is poor, and the cost of labor is high.
3. Because the axial glass-sealed thermistor, the two bare body electrode leads and the wire connecting terminal in the axial direction are manually sleeved with the insulating sleeve, the automatic production cannot be realized, and when the thermistor and the metal fixing support are used for fixing the thermistor sleeved with the insulating sleeve in the metal cover, the insulating sleeve is easily pressed through, so that the phenomenon of poor withstand voltage and electric leakage is caused.
Therefore, it is desirable to provide an insulated electric cooker temperature sensor detecting device to at least partially solve the above-mentioned drawbacks or disadvantages.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to achieve the purpose, the invention provides the following technical scheme: an insulation type electric cooker temperature sensor detecting device, comprising: the temperature sensing aluminum cover is characterized in that a heat conducting silica gel plate is fixedly mounted on the inner side wall of the temperature sensing aluminum cover, the heat conducting silica gel plate is far away from the side of the temperature sensing aluminum cover, a support is mounted on the support, a thermistor is mounted on the support and is in contact connection with the heat conducting silica gel plate, wires fixedly connected to the two sides of the thermistor penetrate through the inner side of the support, the wires are far away from the side of the thermistor and are connected with a single chip microcomputer, a spring is clamped on the inner side wall of the temperature sensing aluminum cover, and the support is arranged on the inner side of the spring.
As an improvement of the invention, an installation groove is formed in the side of the bracket close to the heat-conducting silica gel plate, the thermistor is installed in the installation groove, through holes are formed in the bracket, the two through holes are symmetrically arranged on two sides of the installation groove, and the lead passes through the through holes.
As an improvement of the invention, the wires on both sides pass through the through holes and are bound and fixed by nylon ties.
As an improvement of the invention, a hardware ground wire support is mounted on the inner wall of the temperature sensing aluminum cover, the hardware ground wire support is positioned on the side of the support far away from the heat-conducting silica gel plate, the hardware ground wire support is provided with a support arm, and the support arm is abutted against the side wall of the support.
As an improvement of the invention, the heat conducting silica gel plate is provided with heat conducting silica gel on the side close to the temperature sensing aluminum cover.
As an improvement of the invention, the support is provided with a ground wire hole, the ground wire hole is positioned on the side of the mounting groove far away from the heat-conducting silica gel plate, a ground wire is arranged in the ground wire hole, and the ground wire extends out of the side of the ground wire hole and is bound and fixed with the lead by the nylon cable tie.
As a refinement of the invention, the holder is made of a ceramic or plastic material.
As an improvement of the invention, the temperature sensing aluminum cover is bowl-shaped, and the heat conducting silica gel plate is round.
As an improvement of the present invention, the present invention further comprises: a protection device mounted on the support, the protection device comprising:
the support is internally provided with a spring groove, the spring groove is communicated with the side, away from the heat-conducting silica gel plate, of the mounting groove, one end of the first spring is fixedly connected to the inner side wall of the spring groove, the other end of the first spring is fixedly connected with a trapezoidal shell, an elastic soft cushion is filled in the trapezoidal shell, and the elastic soft cushion is in contact connection with the thermistor;
the two side walls of the bracket are fixedly connected with the elastic pad;
the support is provided with a first sliding groove, the two sides of the spring groove are symmetrically provided with the first sliding groove, one end of the U-shaped rod is connected to the inside of the first sliding groove in a sliding mode and is rotatably connected with a ball, the ball is in contact connection with the side wall of the trapezoidal shell, the other end of the U-shaped rod is located at the position, away from the support, of the thermistor, of the side of the rubber pad, and the rod body of the U-shaped rod is fixedly connected with the elastic pad.
As an improvement of the present invention, the present invention further comprises: a locking device, the locking being mounted on the bracket, the locking device comprising:
the side wall of the bracket is provided with a second sliding groove, the two sides of the spring groove are both communicated with the second sliding groove, one end of the connecting rod is fixedly connected with the side wall of the trapezoidal shell, and the connecting rod is connected in the second sliding groove in a sliding manner;
the inner ring of the trapezoidal ring is fixedly connected with the end, far away from the trapezoidal shell, of the connecting rod, and a strip-shaped groove is formed in the circumferential wall of the trapezoidal ring in the circumferential direction;
the first arc-shaped plates are connected in the strip-shaped groove in a sliding mode through first connecting plates, the three first arc-shaped plates are arranged along the circumferential direction of the ladder-shaped ring, and the first arc-shaped plates are connected with the support in a sliding mode;
the second arc, the second arc passes through second connecting plate sliding connection and is in the bar inslot, it is three the second arc is followed trapezoidal ring circumference sets up, the second arc with support sliding connection, it is three first arc and three the second arc is constituteed circularly.
Compared with the prior art, the invention at least comprises the following beneficial effects:
the insulating electric cooker temperature sensor detection device provided by the invention avoids the manual addition of an insulating sleeve on the thermistor and the lead, can realize an insulating function only through the bracket, can quickly install the thermistor on the bracket, can realize automatic production, saves manpower, improves the working efficiency, reduces the cost, and ensures that the thermistor is tightly attached to the heat-conducting silica gel plate, so that the thermal reaction is rapid, the consistency is high, and meanwhile, the electric leakage phenomenon can be avoided.
Other advantages, objects, and features of the insulated electric cooker temperature sensor sensing device according to the present invention will be in part apparent from the following description and in part will become apparent to those skilled in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is an exploded view of a detecting device of an insulated electric cooker temperature sensor according to the present invention;
FIG. 2 is a front view of the detecting device of the insulated electric cooker temperature sensor according to the present invention;
FIG. 3 is a side view of the detecting device of the insulated electric cooker temperature sensor according to the present invention;
FIG. 4 is a schematic view illustrating the installation of a protection device of the detecting device of the insulated electric cooker temperature sensor according to the present invention;
FIG. 5 is an installation front view of a locking device of the detecting device of the insulated electric cooker temperature sensor according to the present invention;
FIG. 6 is a schematic top view of a locking device of the detecting device of the insulated electric cooker temperature sensor according to the present invention;
FIG. 7 is a schematic view illustrating the installation of a locking device of the detecting device of the insulated electric cooker temperature sensor according to the present invention;
fig. 8 is a schematic structural view of a ladder-shaped ring of the detecting device of the insulated electric cooker temperature sensor according to the present invention.
In the figure, 1 is a temperature sensing aluminum cover; 2 is a heat-conducting silica gel plate; 3 is a bracket; 301 is a mounting groove; 302 is a through hole; 303 is a ground wire hole; 4 is a thermistor; 5 is a lead; 6 is a spring; 7 is a nylon ribbon; 8 is a hardware ground wire bracket; 801 is a bracket arm; 9 is a singlechip; 10 is a ground wire; 11 is a first spring; 12 is a spring groove; 13 is a trapezoidal shell; 14 is an elastic soft cushion; 15 is an elastic pad; 16 is a U-shaped rod; 17 is a first chute; 18 is a ball; 19 is a rubber pad; 20 is a connecting rod; 21 is a second chute; 22 is a ladder-shaped ring; 23 is a strip-shaped groove; 24 is a first arc plate; 25 is a first connecting plate; 26 is a second arc plate; and 27 is a second connecting plate.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1 to 8, a detecting device for an insulated electric cooker temperature sensor includes: temperature sensing aluminium lid 1, fixed mounting has heat conduction silica gel board 2 on the 1 inside wall of temperature sensing aluminium lid, heat conduction silica gel board 2 keeps away from 1 side of temperature sensing aluminium lid installs support 3, install thermistor 4 on the support 3, thermistor 4 with heat conduction silica gel board 2 contact is connected, thermistor 4 both sides fixed connection's wire 5 passes 3 inboard settings of support, wire 5 keeps away from 4 sides of thermistor are connected with singlechip 9, 1 inside wall joint of temperature sensing aluminium lid has spring 6, support 3 set up in 6 inboards of spring.
The working principle of the technical scheme is as follows: firstly, a thermistor 4 is installed on a support 3, wires 5 on two sides of the thermistor 4 penetrate through the inside of the support 3 and then are connected with a single chip microcomputer 9, after installation is completed, a heat-conducting silica gel plate 2 is installed in a temperature-sensing aluminum cover 1, then the support 3 is installed on the heat-conducting silica gel plate 2 in the temperature-sensing aluminum cover 1, the thermistor 4 is in contact connection with the heat-conducting silica gel plate 2 at the moment, when tools such as an electric cooker, a voltage cooker, an electric frying pan and the like are used, the insulating type electric cooker temperature sensor detection device is used for temperature detection, the thermistor 4 is combined with the single chip microcomputer 9 for temperature collection, before the temperature reaches a preset value, a spring 6 is in a compressed state, and after the temperature reaches the preset value, the spring 6 drives the temperature-sensing aluminum cover 1 to bounce, so that a pot sticking phenomenon is prevented.
The beneficial effects of the above technical scheme are that: avoided the manual work to add insulation support on thermistor 4 and wire 5, only need can realize insulating function through support 3, and can install thermistor 4 on support 3 fast, can realize automated production, practice thrift the manpower, improve work efficiency, reduce cost, and thermistor 4 hugs closely heat conduction silica gel plate 2, makes the thermal reaction rapid, and the uniformity is high, can avoid causing the electric leakage phenomenon simultaneously.
In an embodiment of the present invention, an installation groove 301 is formed in the side of the bracket 3 close to the heat conducting silica gel plate 2, the thermistor 4 is installed in the installation groove 301, the bracket 3 is provided with through holes 302, the two through holes 302 are symmetrically arranged at two sides of the installation groove 301, and the lead 5 passes through the through holes 302.
The working principle of the technical scheme is as follows: thermistor 4 installs in mounting groove 301, and when installing support 3 on heat conduction silica gel plate 2, thermistor 4 is connected with heat conduction silica gel plate 2 contact, and the wire 5 of thermistor 4 both sides passes the through-hole 302 setting of mounting groove 301 both sides.
The beneficial effects of the above technical scheme are that: through seting up the installation of mounting groove 301 thermistor 4 of being convenient for, and the installation is accomplished the back, thermistor 4 can hug closely heat conduction silica gel plate 2 under the effect of mounting groove 301 inner wall and heat conduction silica gel plate 2, and the wire 5 of both sides passes through-hole 302 setting, can avoid installing insulating cover on wire 5, utilizes support 3 to surround thermistor 4 and wire 5 simultaneously to realize insulating function.
In one embodiment of the invention, the wires 5 on both sides are fixed by nylon ties 7 through the through holes 302.
The working principle and the beneficial effects of the technical scheme are as follows: the wires 5 are bound and fixed by the nylon cable tie 7 after passing through the through holes 302, so that the operation is convenient, and the wires 5 on two sides are prevented from being disordered.
In an embodiment of the invention, a hardware ground wire support 8 is installed on the inner wall of the temperature sensing aluminum cover 1, the hardware ground wire support 8 is located on the side of the support 3 away from the heat conducting silica gel plate 2, the hardware ground wire support 8 is provided with a support arm 801, and the support arm 801 is abutted to the side wall of the support 3.
The working principle of the technical scheme has the beneficial effects that: play fixed action to support 3 on the one hand through setting up five metals ground wire support 8, on the other hand makes five metals ground wire support 8 be connected with the ground wire.
In an embodiment of the present invention, the heat conducting silica gel plate 2 is provided with heat conducting silica gel on a side close to the temperature sensing aluminum cover 1.
The working principle of the technical scheme is as follows: the heat conducting silica gel plate 2 is bonded on the temperature sensing aluminum cover 1 through heat conducting silica gel.
The beneficial effects of the above technical scheme are that: through the design of the structure, no gap exists between the temperature sensing aluminum cover 1 and the heat conducting silica gel plate 2, the heat conducting capability is improved, and the heat loss is reduced.
In an embodiment of the present invention, the bracket 3 is provided with a ground wire hole 303, the ground wire hole 303 is located on the side of the mounting groove 301 away from the heat conducting silica gel plate 2, a ground wire 10 is arranged in the ground wire hole 303, and the side of the ground wire 10 extending out of the ground wire hole 303 is bound and fixed with the conducting wire 5 by the nylon cable tie 7.
The working principle and the beneficial effects of the technical scheme are as follows: the metal shell of the electric cooker is grounded by arranging the ground wire 10, so that people are prevented from getting an electric shock, and a safety protection effect is achieved.
In one embodiment of the invention, the holder 3 is made of a ceramic or plastic material.
The working principle and the beneficial effects of the technical scheme are as follows: the ceramic or plastic material has good insulating property, low cost and convenient processing, and can realize automatic production.
In an embodiment of the present invention, the temperature sensing aluminum cover 1 is bowl-shaped, and the heat conducting silica gel plate 2 is circular.
The working principle and the beneficial effects of the technical scheme are as follows: the temperature sensing aluminum cover 1 is bowl-shaped, is beneficial to being in overall contact with the heat conduction silica gel plate 2, reduces heat loss, and is beneficial to mounting the spring 6.
In one embodiment of the present invention, further comprising: a protection device mounted on the support 3, the protection device comprising:
a spring groove 12 is formed in the support 3, the spring groove 12 is communicated with the mounting groove 301 and is far away from the side of the heat-conducting silica gel plate 2, one end of the first spring 11 is fixedly connected to the inner side wall of the spring groove 12, the other end of the first spring 11 is fixedly connected with a trapezoidal shell 13, an elastic soft cushion 14 is filled in the trapezoidal shell 13, and the elastic soft cushion 14 is in contact connection with the thermistor 4;
the elastic pad 15 is fixedly connected to both side walls of the bracket 3;
the support 3 is provided with a first sliding groove 17, the two sides of the spring groove 12 are symmetrically provided with the first sliding groove 17, one end of the U-shaped rod 16 is slidably connected into the first sliding groove 17 and is rotatably connected with a ball 18, the ball 18 is in contact connection with the side wall of the trapezoidal shell 13, the other end of the U-shaped rod 16 is located at a position, far away from the thermistor 4 side, of the support 3 and is fixedly connected with a rubber pad 19, and a rod body of the U-shaped rod 16 is fixedly connected with the elastic pad 15.
The working principle of the technical scheme is as follows: before the thermistor 4 is installed in the installation groove 301, the short side of the trapezoidal shell 13 extends into the installation groove 301, the long side of the trapezoidal shell 13 is fixedly connected with the first spring 11, the inclined sides at two sides of the trapezoidal shell 13 are in contact connection with the balls 18, the first spring 11 is in a normal state, the elastic pad 15 is in a stretching state, the U-shaped rods 16 at two sides are in contact connection with the lead 5 extending out of the through hole 302, after the thermistor 4 is installed in the installation groove 301, the bracket 3 is installed on the side end of the heat-conducting silica gel plate 2, because the bracket 3 is in contact with the heat-conducting silica gel plate 2, the thermistor 4 is extruded by the bracket 3 and the heat-conducting silica gel plate 2, so that the thermistor 4 extrudes the elastic cushion 14, the trapezoidal shell 13 is driven to move towards the direction close to the spring groove 12, at the moment, the first spring 11 is compressed, and the balls 18 at two sides of the trapezoidal shell 13 roll along the inclined sides of the trapezoidal shell 13 under the action of the elastic pad 15, thereby driving the U-shaped rods 16 at the two sides to approach each other, and clamping the wires 5 extending out of the through holes 302 by the rubber pads 19 at the two sides;
wherein the length L of the first spring 11 is determined by:
step 1: calculating the yield strength of the thermistor 4 (to prevent the thermistor 4 from being damaged by being pressed, the pressing force on both sides of the thermistor 4 needs to be controlled within a preset value a, which is a pressure value reaching the yield limit of the thermistor 4 material, and to improve the protection capability of the thermistor 4, in actual use, 0.8a is calculated as the actual yield limit pressure value of the thermistor 4):
a＝σ·S
wherein, σ is the yield strength of the thermistor 4 material, the value is the yield strength of the material itself, and can be obtained by searching a mechanical strength table of the material, and S is the cross-sectional area of the thermistor 4 stressed material;
the shell material of the thermistor 4 is made of nickel, the yield strength of the nickel is 588Mpa according to the mechanical design manual, 0.8a is 0.8 multiplied by 588Mpa is 470.4Mpa,
step 2: calculating the pressure value F to which the thermistor 4 is subjected:
where K is the elastic coefficient of the first spring 11, x1The compression distance of the first spring 11, E is the modulus of elasticity, S, of the elastic cushion 141Is the contact area of the elastic soft cushion 14 and the thermistor 4, f is the deformation force of the elastic soft cushion 14, x2The length of the elastic soft cushion 14 which is extruded and deformed;
taking F not more than 470.4Mpa to obtain x1The maximum compression distance of the compressor is set,
and step 3: calculating the length L of the first spring 11:
L＝Z+x1-L1+x2-L2
wherein L is1Is the height, L, of the trapezoidal housing 132Thickness of the thermistor 4, and Z is a length from the spring groove 12 to the heat conduction after the thermistor 4 is mountedDistance of the silica gel plate 2;
by the above formula, take x1At the maximum, L is at the maximum value, and the length L of the first spring 11 and the height L of the trapezoidal shell 131The sum is greater than the depth H of the spring groove 12 to enable the first spring 11 to generate the pressure, so that the length L of the first spring 11 should satisfy the following expression:
H≤L≤Z+x1-L1+x2-L2
the value range of L can be obtained according to the expression, and further, the pressure applied to the thermistor 4 is within the yield strength range within the value range, so that the thermistor 4 can be prevented from being damaged due to extrusion.
The beneficial effects of the above technical scheme are that: through the design of the structure, when the thermistor 4 is installed, the thermistor 4 can be in close contact with the heat-conducting silica gel plate 2 by utilizing the extrusion of the elastic soft pad 14 and the heat-conducting silica gel plate 2, the thermal reaction speed is improved, the thermal reaction consistency is ensured, the elastic soft pad 14 plays a role in protecting the thermistor 4, the thermistor 4 is prevented from being damaged due to extrusion, the phenomenon that the thermistor 4 cannot be in close contact with the heat-conducting silica gel plate 2 when the groove depth is too large due to improper processing of the installation groove 301 is avoided, the heat-conducting thermistor 4 is easy to be damaged under the extrusion of the heat-conducting silica gel plate 2 and the groove bottom when the groove depth is too small, meanwhile, after the thermistor 4 is installed, the U-shaped rods 16 on two sides move close to each other, the rubber pads 19 on two sides clamp the lead 5 extending out of the through hole 302, and when the temperature reaches a preset value, the spring 6 ejects the temperature-sensing aluminum cover 1, the bracket 3 is driven to bounce, if the wires 5 on the two sides and the through hole 302 in the bracket 3 do not have clamping devices, the wires 5 are easy to break under tension when the bracket 3 bounces, and the wires 5 on the two sides can be automatically clamped when the thermistor 4 is installed, so that convenience is improved; meanwhile, the length L of the first spring 11 is calculated through the steps, so that the pressure applied to the thermistor 4 can be controlled within the yield strength range of the material of the thermistor 4, and the thermistor 4 is greatly protected.
In one embodiment of the present invention, further comprising: a locking device, said locking being mounted on said support 3, said locking device comprising:
the side wall of the bracket 3 is provided with a second sliding groove 21, the two sides of the spring groove 12 are both communicated with the second sliding groove 21, one end of the connecting rod 20 is fixedly connected with the side wall of the trapezoidal shell 13, and the connecting rod 20 is slidably connected in the second sliding groove 21;
the inner ring of the ladder-shaped ring 22 is fixedly connected with the end, far away from the ladder-shaped shell 13, of the connecting rod 20, and a strip-shaped groove 23 is formed in the circumferential wall of the ladder-shaped ring 22;
the first arc-shaped plates 24 are slidably connected in the strip-shaped grooves 23 through first connecting plates 25, the three first arc-shaped plates 23 are arranged along the circumferential direction of the ladder-shaped ring 22, and the first arc-shaped plates 24 are slidably connected with the bracket 3;
the second arc-shaped plate 26 is connected in the strip-shaped groove 23 in a sliding mode through a second connecting plate 27, the number of the second arc-shaped plates 26 is three, the second arc-shaped plates 26 are arranged along the circumferential direction of the ladder-shaped ring 22, the second arc-shaped plates 24 are connected with the support 3 in a sliding mode, and the number of the first arc-shaped plates 24 is three, and the number of the second arc-shaped plates 26 is three.
The working principle of the technical scheme is as follows: the small circle limit of trapezoidal ring 22 is located keeps away from 2 sides of heat conduction silica gel plate, the diameter of first arc 24 is greater than the diameter of second arc 26, installation thermistor 4 is preceding, second arc 26 is located the inboard between two first arcs 24, 24 circular arc sides of first arc are close to spring 6 and set up, when installation thermistor 4, trapezoidal casing 13 rises, thereby it rises to drive trapezoidal ring 22, when trapezoidal ring 22 rises, thereby drive first arc 24, second arc 26 removes along trapezoidal ring 22 slope limit, thereby make first arc 24, second arc 26 is toward the direction removal that is close to spring 6, make first arc 24, second arc 26 locks spring 6.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure for thermistor 4 installation is accomplished the back, the first arc 24 of both sides, second arc 26 respectively toward the direction removal and the butt that is close to spring 6, make spring 6 be close to thermistor 4 end by locking, thereby prevent that the temperature from reaching after the default, guaranteed that spring 6 is parallel at the compression with dynamics when flicking, avoid appearing the condition of inner spring 6 slope, and lock spring 6, can prevent that spring 6 from appearing beating when flicking.
In the description of the present invention, it is to be understood that the terms "upper end", "lower end", "front end", "rear end", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Finally, it should be noted that: the foregoing is only a preferred embodiment of the invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A detecting device for an insulated electric cooker temperature sensor is characterized by comprising: temperature sensing aluminium lid (1), fixed mounting has heat conduction silica gel board (2) on temperature sensing aluminium lid (1) inside wall, keep away from heat conduction silica gel board (2) support (3) are installed to temperature sensing aluminium lid (1) side, install thermistor (4) on support (3), thermistor (4) with heat conduction silica gel board (2) contact is connected, thermistor (4) both sides fixed connection's wire (5) pass support (3) inboard setting, wire (5) are kept away from thermistor (4) side is connected with singlechip (9), temperature sensing aluminium lid (1) inside wall joint has spring (6), support (3) set up in spring (6) are inboard.
2. The insulating electric cooker temperature sensor detecting device as claimed in claim 1, wherein the side of the bracket (3) close to the heat conducting silica gel plate (2) is provided with an installation groove (301), the thermistor (4) is installed in the installation groove (301), the bracket (3) is provided with through holes (302), the two through holes (302) are symmetrically arranged at two sides of the installation groove (301), and the conducting wire (5) passes through the through holes (302).
3. The detecting device for the temperature sensor of an insulated electric cooker as claimed in claim 2, wherein the conducting wires (5) at both sides are bound and fixed by nylon cable ties (7) through the through holes (302).
4. The insulating electric cooker temperature sensor detecting device of claim 3, wherein a hardware grounding wire support (8) is installed on the inner wall of the temperature sensing aluminum cover (1), the hardware grounding wire support (8) is located at the side of the support (3) far away from the heat conducting silica gel plate (2), a support arm (801) is arranged on the hardware grounding wire support (8), and the support arm (801) is abutted to the side wall of the support (3).
5. The detecting device of the insulated electric cooker temperature sensor according to claim 1, wherein the heat conductive silica gel plate (2) is provided with heat conductive silica gel on the side close to the temperature sensing aluminum cover (1).
6. The insulating electric cooker temperature sensor detecting device of claim 3, wherein the support (3) is provided with a ground wire hole (303), the ground wire hole (303) is located at a side of the mounting groove (301) far away from the heat conducting silica gel plate (2), a ground wire (10) is arranged in the ground wire hole (303), and the side of the ground wire (10) extending out of the ground wire hole (303) is bound and fixed with the lead (5) by the nylon tie (7).
7. The detecting device for the temperature sensor of the insulated electric cooker as claimed in claim 1, wherein the bracket (3) is made of ceramic or plastic material.
8. The detecting device of the insulated electric cooker temperature sensor according to claim 1, wherein the temperature sensing aluminum cover (1) is bowl-shaped, and the heat conducting silica gel plate (2) is circular.
9. The detecting device for the temperature sensor of the insulated electric cooker as claimed in claim 2, further comprising: a protection device mounted on the support (3), the protection device comprising:
the heat-conducting silicon rubber plate is characterized by comprising a first spring (11), a spring groove (12) is formed in the support (3), the spring groove (12) is communicated with the mounting groove (301) far away from the side of the heat-conducting silicon rubber plate (2), one end of the first spring (11) is fixedly connected to the inner side wall of the spring groove (12), the other end of the first spring (11) is fixedly connected with a trapezoidal shell (13), an elastic cushion (14) is filled in the trapezoidal shell (13), and the elastic cushion (14) is in contact connection with the thermistor (4);
the elastic pad (15) is fixedly connected to the two side walls of the bracket (3);
u-shaped pole (16), first spout (17) have been seted up in support (3), spring groove (12) bilateral symmetry has been seted up first spout (17), U-shaped pole (16) one end sliding connection be in first spout (17) and swivelling joint have ball (18), ball (18) with trapezoidal casing (13) lateral wall contact is connected, U-shaped pole (16) other end is located support (3) are kept away from thermistor (4) side and fixedly connected with rubber pad (19), the pole body of U-shaped pole (16) with cushion (15) fixed connection.
10. The detecting device of claim 9, further comprising: a locking device, said locking being mounted on said support (3), said locking device comprising:
the side wall of the bracket (3) is provided with a second sliding groove (21), the two sides of the spring groove (12) are both communicated with the second sliding groove (21), one end of the connecting rod (20) is fixedly connected with the side wall of the trapezoidal shell (13), and the connecting rod (20) is connected in the second sliding groove (21) in a sliding manner;
the inner ring of the trapezoidal ring (22) is fixedly connected with the end, far away from the trapezoidal shell (13), of the connecting rod (20), and a strip-shaped groove (23) is formed in the circumferential wall of the trapezoidal ring (22) in the circumferential direction;
the first arc-shaped plates (24) are connected in the strip-shaped grooves (23) in a sliding mode through first connecting plates (25), the three first arc-shaped plates (23) are arranged along the circumferential direction of the ladder-shaped ring (22), and the first arc-shaped plates (24) are connected with the support (3) in a sliding mode;
second arc (26), second arc (26) pass through second connecting plate (27) sliding connection in bar groove (23), it is three second arc (26) are followed trapezoidal ring (22) circumference sets up, second arc (24) with support (3) sliding connection, it is three first arc (24) and three second arc (26) are constituteed circularly.
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| CN202110967274.8A CN113532677A (en) | 2021-08-23 | 2021-08-23 | Insulating type electric pot temperature sensor detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110967274.8A CN113532677A (en) | 2021-08-23 | 2021-08-23 | Insulating type electric pot temperature sensor detection device |
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| CN113532677A true CN113532677A (en) | 2021-10-22 |
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| CN202110967274.8A Pending CN113532677A (en) | 2021-08-23 | 2021-08-23 | Insulating type electric pot temperature sensor detection device |
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