CN113532677B - Insulation type electric cooker temperature sensor detecting device - Google Patents
Insulation type electric cooker temperature sensor detecting device Download PDFInfo
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- CN113532677B CN113532677B CN202110967274.8A CN202110967274A CN113532677B CN 113532677 B CN113532677 B CN 113532677B CN 202110967274 A CN202110967274 A CN 202110967274A CN 113532677 B CN113532677 B CN 113532677B
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- thermistor
- silica gel
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- heat
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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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- 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
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- 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 an insulation type electric cooker temperature sensor detection device, comprising: the temperature sensing aluminum cover, fixed mounting has the heat conduction silica gel board on the temperature sensing aluminum cover inside wall, the heat conduction silica gel board is kept away from the temperature sensing aluminum cover side is installed the support, install thermistor on the support, thermistor with the heat conduction silica gel board contact is connected, thermistor both sides fixed connection's wire passes the support inboard sets up, and the both sides the wire is kept away from the thermistor side is connected with the singlechip, temperature sensing aluminum cover inside wall joint has the spring, the support set up in the spring is inboard. The insulation sleeve is prevented from being externally added on the thermistor and the lead wire manually, the insulation function can be realized only through the support, the thermistor can be quickly mounted on the support, automatic production can be realized, labor is saved, the working efficiency is improved, the cost is reduced, the thermistor is tightly attached to the heat-conducting silica gel plate, the heat reaction is rapid, the consistency is high, and meanwhile, the electric leakage phenomenon can be avoided.
Description
Technical Field
The invention relates to the technical field of temperature sensors, in particular to a detection device of an insulating type electric cooker temperature sensor.
Background
The temperature is a very critical physical quantity for controlling the intelligent electric cooker to cook, the intelligent electric cooker can monitor the feasible temperature, judge the possible heating defect, further discover and process in time, prevent the phenomenon of sticking to the pot, and run according to the preset temperature setting, thereby ensuring the cooking quality. The process can be realized by combining a thermistor with a temperature sensor, firstly carrying out temperature acquisition, and then carrying out digital temperature conversion and output. The prior art has the following drawbacks or deficiencies:
1. the current temperature sensor devices for electric cookers, electric pressure cookers, electric frying pans and the like consist of an axial glass-sealed thermistor and an insulating sleeve, and as the insulating sleeve insulates heat and the thermistor is arranged in the sleeve and has a gap, the axial glass-sealed thermistor cannot be effectively and closely arranged on a metal surface, so that the thermal reaction of a product is slow and the consistency is poor;
2. Because the axial glass-sealed thermistor and the connection parts of the axial two-pole wires and the electric wires are exposed, workers are required to respectively sleeve insulating sleeves at the exposed parts, the working efficiency is poor, and the labor cost is high;
3. Because the axial glass-sealed thermistor and the axial two bare electrode wires and the wire connecting terminals need to be sleeved with the insulating sleeve manually, automatic production cannot be realized, and when the thermistor sleeved with the insulating sleeve is fixed in the metal cover by using the thermistor and the metal fixing bracket, the insulating sleeve is easy to press through, so that poor withstand voltage and electric leakage are caused.
Therefore, it is desirable to provide an insulated type electric cooker temperature sensor detecting device to at least partially solve the above-mentioned drawbacks or shortcomings.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and 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 above purpose, the present invention provides the following technical solutions: an insulation type electric cooker temperature sensor detection device, comprising: the temperature sensing aluminum cover, fixed mounting has the heat conduction silica gel board on the temperature sensing aluminum cover inside wall, the heat conduction silica gel board is kept away from the temperature sensing aluminum cover side is installed the support, install thermistor on the support, thermistor with the heat conduction silica gel board contact is connected, thermistor both sides fixed connection's wire passes the support inboard sets up, the wire is kept away from the thermistor side is connected with the singlechip, temperature sensing aluminum cover inside wall joint has the spring, the support set up in the spring is inboard.
As an improvement of the invention, the side, close to the heat conduction silica gel plate, of the support is provided with a mounting groove, the thermistor is mounted in the mounting groove, the support is provided with through holes, the two through holes are symmetrically arranged on two sides of the mounting groove, and the lead wires penetrate through the through holes.
As an improvement of the invention, the wires on two 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 arranged on the inner wall of the temperature-sensing aluminum cover, the hardware ground wire support is positioned on the side, far away from the heat-conducting silica gel plate, of the support, and a support arm is arranged on the hardware ground wire support and is abutted to the side wall of the support.
As an improvement of the invention, the side of the heat conduction silica gel plate close to the temperature sensing aluminum cover is provided with heat conduction silica gel.
As an improvement of the invention, the support is provided with a ground wire hole, the ground wire hole is positioned on the side, far away from the heat-conducting silica gel plate, of the mounting groove, a ground wire is arranged in the ground wire hole, and the side, extending out of the ground wire hole, of the ground wire is bound and fixed with the lead by the nylon ribbon.
As an improvement of the invention, the bracket is made of 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, further comprising: a protective device mounted on the support, the protective device comprising:
The first spring is provided with a spring groove in the bracket, the spring groove is communicated with the side, away from the heat conduction 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 trapezoid shell, an elastic soft cushion is filled in the trapezoid shell, and the elastic soft cushion is in contact connection with the thermistor;
The elastic pads are fixedly connected with the two side walls of the bracket;
The U-shaped rod, first spout has been seted up to the support, spring groove bilateral symmetry has been seted up first spout, U-shaped rod one end sliding connection is in the first spout and rotate and be connected with the ball, the ball with trapezoidal casing lateral wall contact is connected, the U-shaped rod other end is located the support is kept away from thermistor side and fixedly connected with rubber pad, the shaft of U-shaped rod with elastic pad fixed connection.
As an improvement of the present invention, further comprising: the locking device, the locking is installed on the support, the locking device includes:
The connecting rod is provided with a second chute on the side wall of the bracket, the two sides of the spring groove are respectively communicated with the second chute, one end of the connecting rod is fixedly connected with the side wall of the trapezoid shell, and the connecting rod is slidably connected in the second chute;
the inner ring of the trapezoid ring is fixedly connected with the end, away from the trapezoid shell, of the connecting rod, and a strip-shaped groove is formed in the circumferential direction of the circumferential wall of the trapezoid ring;
The first arc plates are connected in the strip-shaped groove in a sliding mode through first connecting plates, three first arc plates are arranged along the circumference of the trapezoid ring, and the first arc plates are connected with the support in a sliding mode;
The second arc plates are slidably connected in the strip-shaped grooves through second connecting plates, three second arc plates are circumferentially arranged along the trapezoid rings, the second arc plates are slidably connected with the support, and the three first arc plates and the three second arc plates form a circle.
Compared with the prior art, the invention at least comprises the following beneficial effects:
The insulating type electric cooker temperature sensor detection device provided by the invention avoids the situation that an insulating sleeve is externally added on the thermistor and the lead wire manually, the insulating function can be realized only by the support, the thermistor can be quickly arranged on the support, automatic production can be realized, labor is saved, the working efficiency is improved, the cost is reduced, and the thermistor is tightly attached to the heat-conducting silica gel plate, so that the heat reaction is quick, the consistency is high, and meanwhile, the leakage phenomenon can be avoided.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is an exploded view of an insulated electric kettle temperature sensor detection device according to the present invention;
FIG. 2 is a front view of the temperature sensor detecting device of the insulated electric cooker according to the invention;
FIG. 3 is a side view of the insulated electric kettle temperature sensor detection device according to the present invention;
FIG. 4 is a schematic diagram illustrating the installation of a protection device for an insulated electric kettle temperature sensor detection device according to the present invention;
FIG. 5 is an elevation view showing the installation of a locking device of a temperature sensor detecting device of an insulated electric pot according to the present invention;
FIG. 6 is a schematic top view of a locking device of the insulated electric kettle temperature sensor detection device according to the present invention;
FIG. 7 is a schematic diagram illustrating the installation of a locking device of an insulated electric kettle temperature sensor detection device according to the present invention;
fig. 8 is a schematic structural view of a trapezoid ring of the insulating type electric pan temperature sensor detecting device according to the present invention.
In the figure, 1 is a temperature-sensing aluminum cover; 2 is a heat conduction 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 wire; 6 is a spring; 7 is nylon ribbon; 8 is a hardware ground wire bracket; 801 is a support arm; 9 is a singlechip; 10 is ground wire; 11 is a first spring; 12 is a spring groove; 13 is a trapezoid shell; 14 is an elastic 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 trapezoidal ring; 23 is a strip-shaped groove; 24 is a first arcuate plate; 25 is a first connection plate; 26 is a second arcuate plate; and 27 is a second connection plate.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Referring to fig. 1 to 8, an insulation type electric cooker temperature sensor detecting device includes: the temperature sensing aluminum cover 1, fixed mounting has heat conduction silica gel board 2 on the temperature sensing aluminum cover 1 inside wall, heat conduction silica gel board 2 keep away from temperature sensing aluminum cover 1 side 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 support 3 inboard sets up, wire 5 is kept away from thermistor 4 side is connected with singlechip 9, temperature sensing aluminum cover 1 inside wall joint has spring 6, support 3 set up in spring 6 inboard.
The working principle of the technical scheme is as follows: firstly, a thermistor 4 is arranged on a support 3, wires 5 on two sides of the thermistor 4 penetrate through the support 3 and are connected with a singlechip 9, after the installation is finished, a heat conduction silica gel plate 2 is firstly arranged in a temperature sensing aluminum cover 1, then the support 3 is arranged on the heat conduction silica gel plate 2 in the temperature sensing aluminum cover 1, at the moment, the thermistor 4 is in contact connection with the heat conduction silica gel plate 2, when tools such as an electric cooker, an electric pressure cooker, an electric frying pan and the like are used, temperature detection is carried out by utilizing the insulating type electric cooker temperature sensor detection device, the thermistor 4 is combined with the singlechip 9 for temperature acquisition, 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 the phenomenon of preventing pan sticking occurs.
The beneficial effects of the technical scheme are that: the insulation sleeve is prevented from being externally added on the thermistor 4 and the lead 5 manually, the insulation function can be realized only through the support 3, the thermistor 4 can be quickly installed on the support 3, automatic production can be realized, labor is saved, the working efficiency is improved, the cost is reduced, the thermistor 4 is tightly attached to the heat-conducting silica gel plate 2, the heat reaction is rapid, the consistency is high, and meanwhile, the electric leakage phenomenon can be avoided.
In one embodiment of the present invention, the side of the bracket 3, which is close to the heat-conducting silicone plate 2, is provided with a mounting groove 301, the thermistor 4 is mounted in the mounting groove 301, the bracket 3 is provided with a through hole 302, two through holes 302 are symmetrically arranged at two sides of the mounting groove 301, and the wire 5 is arranged through the through holes 302.
The working principle of the technical scheme is as follows: when the thermistor 4 is installed in the installation groove 301 and the bracket 3 is installed on the heat-conducting silica gel plate 2, the thermistor 4 is in contact connection with the heat-conducting silica gel plate 2, and the wires 5 on two sides of the thermistor 4 penetrate through the through holes 302 on two sides of the installation groove 301.
The beneficial effects of the technical scheme are that: the installation of the thermistor 4 is facilitated by arranging the installation groove 301, after the installation is completed, the thermistor 4 can be tightly attached to the heat-conducting silica gel plate 2 under the action of the inner wall of the installation groove 301 and the heat-conducting silica gel plate 2, and the wires 5 on two sides penetrate through the through holes 302, so that the installation of an insulating sleeve on the wires 5 can be avoided, and meanwhile, the thermistor 4 and the wires 5 are enclosed by the bracket 3, so that an insulating function is realized.
In one embodiment of the present invention, the wires 5 on both sides are bound and 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 pass through the through holes 302 and are bound and fixed by the nylon ties 7, so that the operation is convenient, and the disorder of the wires 5 on two sides is avoided.
In one embodiment of the invention, a hardware ground wire bracket 8 is mounted on the inner wall of the temperature sensing aluminum cover 1, the hardware ground wire bracket 8 is located on the side of the bracket 3 away from the heat conducting silica gel plate 2, the hardware ground wire bracket 8 is provided with a bracket arm 801, and the bracket arm 801 is abutted against the side wall of the bracket 3.
The working principle of the technical scheme has the beneficial effects that: by arranging the hardware ground wire support 8, on one hand, the support 3 is fixed, and on the other hand, the hardware ground wire support 8 is connected with the ground wire.
In one embodiment of the present invention, the side of the heat-conducting silica gel plate 2 close to the temperature-sensing aluminum cover 1 is provided with heat-conducting silica gel.
The working principle of the technical scheme is as follows: the heat conduction silica gel plate 2 is adhered to the temperature sensing aluminum cover 1 through heat conduction silica gel.
The beneficial effects of the 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, so that the heat conducting capacity is improved, and the heat loss is reduced.
In one embodiment of the present invention, the support 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 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 through the ground wire 10, so that the electric shock of people is prevented, and the safety protection effect is achieved.
In one embodiment of the invention, the support 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 one embodiment of the present invention, the temperature-sensing aluminum cover 1 is bowl-shaped, and the heat-conducting silicone 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 comprehensive contact with the heat-conducting silica gel plate 2, reduces heat loss, and is beneficial to installation of the spring 6.
In one embodiment of the present invention, further comprising: a protection device mounted on the bracket 3, the protection device comprising:
The first spring 11, a spring groove 12 is formed in the bracket 3, the spring groove 12 is communicated with the side, away from the heat conduction silica gel plate 2, of the mounting groove 301, 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 trapezoid shell 13, an elastic cushion 14 is filled in the trapezoid shell 13, and the elastic cushion 14 is in contact connection with the thermistor 4;
the elastic cushion 15 is fixedly connected with the two side walls of the bracket 3;
The U-shaped rod 16, first spout 17 has been seted up to support 3, spring groove 12 bilateral symmetry has been seted up first spout 17, U-shaped rod 16 one end sliding connection is in first spout 17 and is connected with ball 18 in the rotation, ball 18 with trapezoidal casing 13 lateral wall contact is connected, the U-shaped rod 16 other end is located support 3 is kept away from thermistor 4 side and fixedly connected with rubber pad 19, the shaft of U-shaped rod 16 with spring pad 15 fixed connection.
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 trapezoid shell 13 extends into the installation groove 301, the long side of the trapezoid shell 13 is fixedly connected with the first spring 11, the inclined sides of the trapezoid 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 on the two sides are in contact connection with the wires 5 extending out of the through holes 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, the thermistor 4 is extruded by the bracket 3 and the heat conducting silica gel plate 2 due to the fact that the bracket 3 is in contact with the heat conducting silica gel plate 2, so that the thermistor 4 extrudes the elastic cushion 14, the trapezoid shell 13 is driven to move towards the direction close to the spring groove 12, at the moment, the first spring 11 is compressed, the balls 18 on the two sides of the trapezoid shell 13 roll along the inclined sides of the trapezoid shell 13 under the action of the elastic pad 15, the U-shaped rods 16 on the two sides are driven to be close to each other, and the rubber pads 19 on the two sides are driven to clamp the wires 5 extending out of the through holes 302;
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 pressing, it is necessary to control the pressing force on both sides of the thermistor 4 to a preset value In, the preset valueTo achieve the pressure value of the yield limit of the thermistor 4 material and to improve the protection capability of the thermistor 4, the pressure value is 0.8 in practical useCalculated as the actual yield limit pressure value of the thermistor 4):
wherein, The yield strength of the thermistor 4 material is the yield strength of the material itself, which can be obtained by searching a mechanical strength table of the material, and S is the cross-sectional area of the stressed material of the thermistor 4;
the shell material of the thermistor 4 is made of nickel, and the yield strength of the nickel is 588Mpa according to the search of the mechanical design manual ，
Step 2: calculating the pressure value F to which the thermistor 4 is subjected:
where K is the spring constant of the first spring 11, For the compression distance of the first spring 11, E is the modulus of elasticity of the elastic cushion 14,Is the contact area of the elastic cushion 14 and the thermistor 4,As a deforming force of the elastic cushion 14,A length of the elastic cushion 14 which is deformed by extrusion;
Taking out Can be obtained byIs used for the compression of the compressed air,
Step 3: the length L of the first spring 11 is calculated:
wherein, Is the height of the trapezoidal shaped housing 13,Z is the distance from the spring groove 12 to the heat-conducting silica gel plate 2 after the installation of the thermistor 4 is completed;
taking through the formula At maximum, L takes a maximum value, due to the length L of the first spring 11 and the height of the trapezoidal housing 13The sum of which is greater than the depth H of the spring groove 12 to allow the first spring 11 to exert pressure, the length L of the first spring 11 should finally satisfy the following expression:
the value range of L can be obtained according to the above expression, and in this range, the pressure applied to the thermistor 4 is in the yield strength range, so that the thermistor 4 can be prevented from being damaged by being pressed.
The beneficial effects of the technical scheme are that: through the design of the structure, when the thermistor 4 is installed, the elastic cushion 14 is utilized to tightly contact the thermistor 4 with the heat-conducting silica gel plate 2 under the extrusion of the heat-conducting silica gel plate 2, so that the heat reaction speed is improved, the heat reaction consistency is ensured, the elastic cushion 14 plays a role in protecting the thermistor 4, the thermistor 4 is prevented from being damaged due to extrusion, the situation that the thermistor 4 cannot be tightly contacted with the heat-conducting silica gel plate 2 when the groove depth is too large due to improper machining of the mounting groove 301 is avoided, the heat-conducting thermistor 4 is easy to damage under the extrusion of the heat-conducting silica gel plate 2 and the groove bottom when the groove depth is too small, meanwhile, the U-shaped rods 16 on two sides are close to each other to move after the installation of the thermistor 4 is completed, the rubber pads 19 on two sides clamp the wires 5 extending out of the through holes 302, when the temperature reaches a preset value, the spring 6 drives the bracket 3 to bounce when the temperature-sensing aluminum cover 1, and the wires 5 on two sides are easily broken due to the fact that the wires 5 on the two sides are not provided with clamping devices in the bracket 3 bounce, and the wires 5 can be automatically clamped conveniently when the two sides of the thermistor 4 are installed; 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 range of the yield strength of the material of the thermistor 4, and the thermistor 4 is protected greatly.
In one embodiment of the present invention, further comprising: locking means, said locking being mounted on said support 3, said locking means comprising:
The side wall of the bracket 3 is provided with a second chute 21, two sides of the spring slot 12 are respectively provided with the second chute 21 in a communicating way, one end of the connecting rod 20 is fixedly connected with the side wall of the trapezoid shell 13, and the connecting rod 20 is slidably connected in the second chute 21;
The inner ring of the trapezoid ring 22 is fixedly connected with the end, away from the trapezoid shell 13, of the connecting rod 20, and a strip-shaped groove 23 is formed in the circumferential direction of the circumferential wall of the trapezoid ring 22;
The first arc plates 24 are slidably connected in the strip-shaped grooves 23 through first connecting plates 25, three first arc plates 24 are circumferentially arranged along the trapezoid rings 22, and the first arc plates 24 are slidably connected with the bracket 3;
the second arc plates 26 are slidably connected in the strip-shaped grooves 23 through second connecting plates 27, three second arc plates 26 are circumferentially arranged along the trapezoid rings 22, the second arc plates 26 are slidably connected with the support 3, and the three first arc plates 24 and the three second arc plates 26 form a circle.
The working principle of the technical scheme is as follows: the small circular edge of the trapezoid ring 22 is located at the side far away from the heat conduction silica gel plate 2, the diameter of the first arc plate 24 is larger than that of the second arc plate 26, before the thermistor 4 is installed, the second arc plate 26 is located at the inner side between the two first arc plates 24, the arc sides of the first arc plates 24 are close to the springs 6, when the thermistor 4 is installed, the trapezoid shell 13 ascends, the trapezoid ring 22 is driven to ascend, and when the trapezoid ring 22 ascends, the first arc plates 24 and the second arc plates 26 are driven to move along the inclined edge of the trapezoid ring 22, so that the first arc plates 24 and the second arc plates 26 move towards the direction close to the springs 6, and the first arc plates 24 and the second arc plates 26 lock the springs 6.
The beneficial effects of the technical scheme are that: through the design of above-mentioned structure for after thermistor 4 installs and accomplish, the direction that is close to spring 6 is removed and the butt is on spring 6 respectively to first arc 24, second arc 26 of both sides, makes spring 6 be close to thermistor 4 end by locking, thereby prevents that the temperature from reaching the default after, has guaranteed that spring 6 is compressed and the dynamics of opening when bullet is parallel, avoids appearing the condition of interior spring 6 slope, and locks spring 6, can prevent that spring 6 from jumping when opening.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, 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 modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. An insulated electric pot temperature sensor detection device, comprising: the temperature sensing aluminum cover (1), heat conduction silica gel plate (2) is fixedly installed on the inner side wall of the temperature sensing aluminum cover (1), support (3) is installed on the side, away from the temperature sensing aluminum cover (1), of the heat conduction silica gel plate (2), thermistor (4) is installed on support (3), thermistor (4) is in contact connection with heat conduction silica gel plate (2), lead wires (5) fixedly connected with two sides of thermistor (4) penetrate through the inner side of support (3) to be arranged, the lead wires (5) are far away from the side, of thermistor (4) and are connected with a single chip microcomputer (9), springs (6) are clamped on the inner side wall of the temperature sensing aluminum cover (1), and the support (3) is arranged on the inner side of the springs (6).
The thermal resistor is characterized in that a mounting groove (301) is formed in the side, close to the heat-conducting silica gel plate (2), of the support (3), the thermistor (4) is mounted in the mounting groove (301), through holes (302) are formed in the support (3), the two through holes (302) are symmetrically formed in the two sides of the mounting groove (301), and the conducting wires (5) penetrate through the through holes (302);
further comprises: a protection device mounted on the support (3), the protection device comprising:
The heat-conducting silicone rubber thermal resistor comprises a first spring (11), wherein a spring groove (12) is formed in a support (3), the spring groove (12) is communicated with the side, away from the heat-conducting silicone rubber plate (2), of the mounting groove (301), 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 trapezoid shell (13), an elastic soft cushion (14) is filled in the trapezoid shell (13), and the elastic soft cushion (14) is in contact connection with the thermistor (4);
the elastic cushion (15) is fixedly connected with the two side walls of the bracket (3);
U-shaped pole (16), first spout (17) have been seted up to support (3), spring groove (12) bilateral symmetry has been seted up first spout (17), U-shaped pole (16) one end sliding connection is in first spout (17) and rotate and be connected with 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 shaft of U-shaped pole (16) with spring pad (15) fixed connection.
2. An insulated electric pan temperature sensor detection device according to claim 1, characterized in that the wires (5) on both sides are tied and fixed by nylon ties (7) through the through holes (302).
3. The insulation type electric cooker temperature sensor detection device according to claim 2, wherein a hardware ground wire support (8) is mounted on the inner wall of the temperature sensing aluminum cover (1), the hardware ground wire support (8) is located on the side, away from the heat conducting silica gel plate (2), of the support (3), a support arm (801) is arranged on the hardware ground wire support (8), and the support arm (801) is in butt joint with the side wall of the support (3).
4. The insulated electric pot temperature sensor detection device according to claim 1, wherein the heat conducting silica gel plate (2) is provided with heat conducting silica gel close to the side of the temperature sensing aluminum cover (1).
5. The insulation type electric cooker temperature sensor detection device according to claim 2, wherein the support (3) is provided with a ground wire hole (303), the ground wire hole (303) is located on the side, away from the heat conduction silica gel plate (2), of the installation groove (301), a ground wire (10) is arranged in the ground wire hole (303), and the side, extending out of the ground wire hole (303), of the ground wire (10) is bound and fixed with the conducting wire (5) through the nylon binding belt (7).
6. An insulated pot temperature sensor detection device according to claim 1, characterized in that the bracket (3) is made of ceramic or plastic material.
7. The insulation type electric cooker temperature sensor detection device according to claim 1, wherein the temperature sensing aluminum cover (1) is bowl-shaped, and the heat conducting silica gel plate (2) is circular.
8. The insulation type electric pan temperature sensor detecting device according to claim 1, further comprising: locking device, the locking is installed on support (3), locking device includes:
the connecting rod (20), a second chute (21) is formed in the side wall of the bracket (3), the second chute (21) is communicated with and arranged on two sides of the spring groove (12), one end of the connecting rod (20) is fixedly connected with the side wall of the trapezoid shell (13), and the connecting rod (20) is slidably connected in the second chute (21);
the inner ring of the trapezoid ring (22) is fixedly connected with the end, away from the trapezoid shell (13), of the connecting rod (20), and a strip-shaped groove (23) is formed in the circumferential direction of the circumferential wall of the trapezoid ring (22);
the first arc plates (24) are connected in the strip-shaped grooves (23) in a sliding mode through first connecting plates (25), the three first arc plates (24) are arranged along the circumference of the trapezoid ring (22), and the first arc plates (24) are connected with the support (3) in a sliding mode;
the second arc plates (26), the second arc plates (26) are connected in the strip-shaped groove (23) in a sliding mode through second connecting plates (27), the three second arc plates (26) are arranged along the circumference of the trapezoid ring (22), the second arc plates (26) are connected with the support (3) in a sliding mode, and the three first arc plates (24) and the three second arc plates (26) form a circle.
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| CN202110967274.8A CN113532677B (en) | 2021-08-23 | 2021-08-23 | Insulation type electric cooker temperature sensor detecting device |
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| CN202110967274.8A CN113532677B (en) | 2021-08-23 | 2021-08-23 | Insulation type electric cooker temperature sensor detecting device |
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| CN113940551A (en) * | 2021-11-25 | 2022-01-18 | 广东伊莱特电器有限公司 | Sensor structure and rice cooker |
| CN115200733A (en) * | 2022-07-13 | 2022-10-18 | 广东福尔电子有限公司 | Thermistor sensor with double thermal fuses |
| CN115014563A (en) * | 2022-07-14 | 2022-09-06 | 广东福尔电子有限公司 | Single thermistor sensor |
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