CN217816890U - Combined dry burning prevention temperature sensing device - Google Patents
Combined dry burning prevention temperature sensing device Download PDFInfo
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- CN217816890U CN217816890U CN202221763260.0U CN202221763260U CN217816890U CN 217816890 U CN217816890 U CN 217816890U CN 202221763260 U CN202221763260 U CN 202221763260U CN 217816890 U CN217816890 U CN 217816890U
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Abstract
The utility model belongs to the technical field of kitchen ware accessories, and provides a combined type dry heating prevention temperature sensing device, which comprises a heat insulation sheath, a temperature sensing assembly and a first elastic element; the heat insulation sheath comprises an upper sheath and a lower sheath which are made of non-metal materials, the upper sheath is connected with the lower sheath, and the upper sheath is positioned above the lower sheath; a first limiting part is arranged in the heat insulation sheath, the temperature sensing assembly is arranged in an inner cavity of the upper-layer sheath and is positioned above the first limiting part, and an anti-falling limiting part for preventing the temperature sensing assembly from popping out of an opening at the top of the upper-layer sheath is arranged on the temperature sensing assembly; a first elastic element is arranged between the temperature sensing assembly and the first limiting part, and under a normal state, the elasticity of the first elastic element always enables the temperature sensing end of the temperature sensing assembly to extend out of the top opening of the upper-layer sheath. The utility model discloses can effectively reduce the influence of flame temperature measurement precision, be favorable to improving the control accuracy who prevents dry combustion method technique.
Description
Technical Field
The utility model belongs to the technical field of the kitchen utensils and appliances accessory, concretely relates to modular prevent dry combustion method temperature sensing device.
Background
In recent years, along with the improvement of safety consciousness of people and the rise of intelligent home, the dry burning prevention technology in the kitchen range industry is rapidly developed. The current dry burning prevention kitchen range basically adopts the mature dry burning prevention probe contact induction technology, and the working principle is approximately as follows: the gas stove heats food in the pot, the temperature of the food in the pot is reflected at the bottom of the pot through the pot, the anti-dry heating probe which is in close contact with the bottom of the pot detects the temperature of the bottom of the pot and converts a temperature signal into an electric signal to be fed back to the main controller in real time, the main controller analyzes and judges the signal, when the temperature of the bottom of the pot exceeds the set normal use temperature, the main controller judges that the phenomenon of dry heating and overheating occurs in the pot, an action signal is sent to the gas valve of the stove, a gas passage is closed, and the anti-dry heating protection function is realized. In order to realize the installation of the dry-burning prevention probe and ensure the accuracy of the probe test, the traditional dry-burning prevention probe is installed in the middle of the burner, but the current dry-burning prevention technology has the following defects: in order to meet the cooking habits of stir-frying with big fire and boiling soup with small fire in China, the atmospheric type dry-burning prevention cooking utensils circulated on the market at present are generally divided into inner ring fire and outer ring fire, flame of an atmospheric type burner can shake along with air flow and gas change in the combustion process, the shaking flame easily interferes with a dry-burning prevention probe, and especially when the inner ring flame shakes, the error of the dry-burning prevention probe in measuring the temperature of the pot bottom is increased, so that false operation is caused. The sensitivity and the accuracy of temperature measurement also have certain influence on the rapid development of smart homes and the popularization of families.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above shortcoming of prior art, the utility model aims at providing a combination formula that can realize accurate temperature measurement prevents dry combustion method temperature sensing device, the device can effectively reduce the influence of flame temperature measurement precision, is favorable to improving the wide application of preventing dry combustion method technique.
The utility model provides a technical scheme that its technical problem adopted is:
a combined type dry burning prevention temperature sensing device comprises a heat insulation sheath, a temperature sensing assembly for detecting the temperature of a cooker and a first elastic element; wherein, the first and the second end of the pipe are connected with each other,
the heat insulation sheath comprises an upper sheath and a lower sheath which are made of non-metal materials, the upper sheath is connected with the lower sheath, and the upper sheath is positioned above the lower sheath;
a first limiting part is arranged in the heat insulation sheath, the temperature sensing assembly can be longitudinally and slidably arranged in an inner cavity of an upper-layer sheath of the heat insulation sheath and is positioned above the first limiting part, and an anti-falling limiting part for preventing the top opening of the upper-layer sheath from being popped up is arranged on the temperature sensing assembly;
a first elastic element is arranged between the temperature sensing assembly and the first limiting part, and under a normal state, the elasticity of the first elastic element always enables the temperature sensing end of the temperature sensing assembly to extend out of the top opening of the upper-layer sheath.
Preferably, the upper layer sheath includes a heat insulating portion and a connecting portion connected to a lower end of the heat insulating portion, an outer diameter of the connecting portion is smaller than an outer diameter of the heat insulating portion, and the lower layer sheath is fitted around the connecting portion.
Preferably, the lower sheath is made of a metallic material.
Preferably, the upper layer sheath and the lower layer sheath are connected and fixed through bonding or buckling.
Preferably, the coating on the outer wall surface of the upper sheath is provided with a thermochromic material.
Preferably, the gas stove further comprises a second elastic element and a fixed support piece, wherein the fixed support piece is arranged in the inner cavity of the heat insulation sheath and is positioned below the first limiting piece, and the fixed support piece is fixedly connected with parts of the gas stove; the second elastic element is arranged in the heat insulation sheath and is positioned between the first limiting piece and the fixed supporting piece; the elastic modulus of the second elastic element is greater than the elastic modulus of the first elastic element.
Preferably, the fixed support includes a second limiting member and a sleeve, the second limiting member is disposed in the inner cavity of the heat insulation sheath, one end of the sleeve is connected to the second limiting member, and the other end of the sleeve extends downward; the second elastic element is arranged between the first limiting piece and the second limiting piece.
Preferably, the device further comprises a support ring; the support ring is arranged at the bottom of the lower-layer sheath and is fixedly connected with the lower-layer sheath; the second limiting part is arranged above the support ring, and the sleeve is arranged in the through hole of the support ring in a penetrating mode.
Preferably, the bottom end of the upper layer of jacket is connected with the top of the support ring, and the bottom end of the inner wall of the lower layer of jacket is connected with the side surface of the support ring.
Preferably, the first limiting part and the second limiting part are both arranged in an annular structure, and connecting holes for the wire to shuttle are formed in the first limiting part and the second limiting part.
Compared with the prior art, the beneficial effects of the utility model are that:
under the operating condition, the cooker generates downward pressure on the temperature sensing assembly, so that the temperature sensing assembly moves downward after overcoming the elasticity of the first elastic element and is hidden in the heat insulation sheath, the temperature measurement of the temperature sensing assembly is effectively prevented from being influenced by flame swing, the detection precision of the temperature sensing assembly on the actual temperature of the cooker is favorably improved, the control accuracy of the dry burning prevention function is improved, and the misoperation is avoided. Further, the utility model provides a thermal-insulated sheath divide into upper sheath and lower floor's sheath, and the temperature sensing subassembly sets up in the upper sheath to the upper sheath is made by the lower non-metallic material of coefficient of heat conductivity, consequently can further reduce flame to the temperature measurement influence of temperature sensing subassembly, improves the temperature detection precision of temperature sensing subassembly to the cooking utensil.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a sectional view of the combined dry-heating-preventing temperature sensing device of the present invention.
Fig. 2 is a perspective view of the combined dry-heating preventing temperature sensing device of the present invention.
Wherein:
1-a heat insulation part, 2-a connecting part, 3-a lower layer sheath, 4-a cap, 5-an installation barrel, 6-a temperature measuring sensor, 7-a temperature sensing end, 8-a brim, 9-a fixed limiting part, 10-a first elastic element, 11-a first limiting part, 12-a connecting hole, 13-a limiting step, 14-a second elastic element, 15-a lead, 16-a second limiting part, 17-a sleeve, 18-a connecting ring and 19-a connecting barrel.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, and the described embodiments are merely some embodiments, rather than all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
Referring to fig. 1-2, the present embodiment discloses a combined dry-heating-preventing temperature sensing device, which includes a heat insulation sheath, a temperature sensing assembly for detecting the temperature of a cooker, and a first elastic element 10; the heat insulation sheath comprises an upper sheath made of a non-metal material (such as ceramic) and a lower sheath 3 made of a metal material, the upper sheath is connected with the lower sheath 3, and the upper sheath is positioned above the lower sheath 3; a first limiting part 11 is arranged in the heat insulation sheath, the temperature sensing assembly can be longitudinally and slidably arranged in an inner cavity of an upper-layer sheath of the heat insulation sheath and is positioned above the first limiting part 11, and an anti-falling limiting part for preventing the temperature sensing assembly from popping out of a top opening of the upper-layer sheath is arranged on the temperature sensing assembly; a first elastic element 10 is arranged between the temperature sensing assembly and the first limiting part 11, and in a normal state, the elasticity of the first elastic element 10 always enables the temperature sensing end 7 of the temperature sensing assembly to extend out of the top opening of the upper-layer sheath. The normal state, i.e. the non-working state, referred to here, in the natural state of the first elastic element 10, causes the temperature sensing end 7 of the temperature sensing assembly to extend out of the top opening of the upper layer sheath.
Referring to fig. 1, in this embodiment, the upper layer sheath includes a heat insulation part 1 and a connection part 2, the connection part 2 is connected to a lower end of the heat insulation part 1, an outer diameter of the connection part 2 is smaller than an outer diameter of the heat insulation part 1, the lower layer sheath 3 is sleeved outside the connection part 2, and the outer wall of the connection part 2 is wrapped by the lower layer sheath 3. The heat insulating part 1 and the connecting part 2 of the upper layer sheath of the embodiment are of an integrated structure.
In this embodiment, the connection portion 2 of the upper sheath is fixedly connected with the lower sheath 3 through glue.
As another embodiment, the upper layer sheath and the lower layer sheath 3 can be connected and fixed by a snap-fit mode. For example, a first buckle structure is arranged at the lower end of the upper layer sheath, a second buckle structure is arranged at the upper end of the lower layer sheath 3, and connection is realized through assembly of the first buckle structure and the second buckle structure. Of course, the upper layer sheath may be divided into the heat insulating part 1 and the connecting part 2, the first fastening structure may be provided on the outer surface of the connecting part 2, the second fastening structure may be provided on the inner wall of the lower layer sheath 3, and the connection may be realized by assembling the first fastening structure and the second fastening structure. The specific embodiment of the snap structure can be seen in the prior art.
In this embodiment, a temperature display unit may be disposed on the upper layer sheath, and specifically, a thermochromic material is disposed on the outer wall surface coating of the heat insulation portion 1 of the upper layer sheath. Under the condition of high temperature, the color of the upper layer sheath changes along with the temperature rise, and the warning effect can be given to users.
Referring to fig. 1, the gas stove further includes a second elastic element 14 and a fixing support, the fixing support is disposed in the inner cavity of the heat insulation sheath and located below the first limiting member 11, and the fixing support is fixedly connected with a component of the gas stove; the second elastic element 14 is arranged in the heat insulation sheath and is positioned between the first limiting piece 11 and the fixed support piece; the elastic modulus of the second elastic element 14 is greater than the elastic modulus of the first elastic element 10. The fixed support comprises a second limiting piece 16 and a sleeve 17, the second limiting piece 16 is arranged in the inner cavity of the heat insulation sheath, one end of the sleeve 17 is connected with the second limiting piece 16, and the other end of the sleeve 17 extends downwards; the second elastic element 14 is disposed between the first limiting member 11 and the second limiting member 16.
Referring to fig. 1-2, further comprising a support ring; the support ring is arranged at the bottom of the lower-layer sheath 3 and is fixedly connected with the lower-layer sheath 3; the second limiting member 16 is disposed above the support ring, and the sleeve 17 is inserted into the through hole of the support ring. Specifically, the support ring in this embodiment is arranged in a "T" shape, and includes a connection ring 18 and a connection barrel 19, one end of the connection barrel 19 is connected to the connection ring 18, and the other end of the connection barrel 19 extends downward; the bottom end of the upper layer of sheath is connected with the top of the connecting ring 18, and the bottom end of the inner wall of the lower layer of sheath 3 is connected with the side surface of the connecting ring 18; further, the lower layer sheath 3 and the connecting ring 18 can be fixedly connected by welding, so that the whole heat insulation sheath and the supporting ring can be fixedly connected.
Thus, the second elastic element 14 is arranged to realize the synchronous descending of the heat insulation sheath, the temperature sensing assembly and the support ring, and the overall height of the dry-heating prevention temperature sensing device of the embodiment can be flexibly arranged, so that the overall descending distance of the dry-heating prevention temperature sensing device can be increased, and the dry-heating prevention temperature sensing device is suitable for cookers of different types (pans and closed-end pans) and different thicknesses. Specifically, after the cooker is placed on a pot rack of a gas stove, the temperature sensing assembly moves downwards and is hidden in the heat insulation part 1 of the upper layer sheath; subsequently, under the gravity of the cooker, the temperature sensing assembly and the heat insulating sheath move downward together against the elastic force of the second elastic element 14 to be adapted to the bottom of the cooker; at this time, under the action of the first elastic element 10 and the second elastic element 14, the temperature sensing assembly is always kept in close contact with the bottom of the cooker and hidden in the heat insulation part 1 of the upper layer sheath, thereby effectively preventing the flame from influencing the temperature measurement precision.
Referring to fig. 1, the first limiting member 11 and the second limiting member 16 of the present embodiment are both arranged in an annular structure, and the first limiting member 11 and the second limiting member 16 are both provided with a connecting hole 12 for a wire 15 to shuttle. In this embodiment, the first elastic element 10 and the second elastic element 14 are both springs. The lead 15 connected with the temperature sensing assembly can be threaded into the through hole of the spring and the connecting hole 12 of the first limiting member 11 and the second limiting member 16 and extend into the sleeve 17 so as to be connected with other devices, thereby realizing the electrification of the temperature sensing assembly.
Referring to fig. 1, the inner wall of the upper layer sheath is provided with a limiting step 13 protruding inwards, and the first limiting part 11 is clamped on the limiting step 13 under the elastic force of the second elastic element 14. Specifically, the first limiting part 11 divides the inner cavity of the upper layer sheath into an upper inner cavity and a lower inner cavity, the first elastic element 10 is arranged in the upper inner cavity, and the second elastic element 14 is arranged in the lower inner cavity; furthermore, the inner wall of the upper layer sheath corresponding to the upper inner cavity is thicker than the inner wall of the upper layer sheath corresponding to the lower inner cavity, so that a limiting step 13 is formed. In this way, by the arrangement of the limiting step 13, the limitation of the first limiting member 11 is realized under the elastic force action of the second elastic element 14, so that the first limiting member 11 does not need to be fixedly connected, and is convenient to disassemble and assemble. In addition, set up such upper sheath inner wall, when forming spacing step 13, increased the last inner chamber wall thickness of upper sheath to be favorable to improving the thermal-insulated protective effect of inner chamber, and then avoid flame to the temperature measurement influence of temperature sensing subassembly, further promote the temperature measurement precision.
As another embodiment, it may be configured that: the inner wall of the upper layer sheath corresponding to the lower inner cavity is thicker than the inner wall of the upper layer sheath corresponding to the upper inner cavity, so that a limiting step is formed. The limiting step is arranged upward, and the first limiting part 11 is arranged on the limiting step.
Referring to fig. 1-2, the top edge of the upper layer of sheath extends radially inwards, and the top inner edge of the upper layer of sheath forms a fixed limiting part 9 for limiting the upward movement limit position of the temperature sensing component; the anti-drop limiting part of the temperature sensing assembly is arranged below the fixed limiting part 9. Therefore, the top surface heat insulation sheath is formed at the top of the upper layer sheath, the influence of flame on the temperature sensing assembly is further prevented during working, the temperature measurement precision is favorably improved, the dry burning prevention control precision is improved, and the misoperation is avoided.
Referring to fig. 1, the temperature sensing assembly includes a cap 4 and a temperature sensor 6; the temperature sensor 6 is arranged on the bottom surface of the cap 4, and the top of the cap 4 forms the temperature sensing end 7; the brim 8 of the cap 4 is arranged in the upper-layer sheath and corresponds to the fixed limiting part 9, and the brim 8 of the cap 4 forms the anti-falling limiting part.
Referring to fig. 1, the bottom surface of the cap 4 is provided with a mounting tube 5 extending downwards, and the temperature sensor 6 is arranged in the mounting tube 5. Specifically, the side surface of the cap 4 in this embodiment is inclined outward, the temperature sensor 6 in this embodiment is a thermistor, the temperature sensing assembly further includes a lead 15, one end of the lead 15 is connected with the thermistor, and the other end of the lead extends downward to penetrate through the heat insulation sheath and then is connected with other devices.
In this embodiment, the temperature sensor 6 includes a thermistor.
Referring to fig. 1-2, the working principle of the combined dry-heating-preventing temperature sensing device of the present embodiment is as follows:
in the process of placing the cooker on the pot rack, the top of the cap 4 of the temperature sensing assembly is contacted with the bottom of the cooker, and moves downwards by overcoming the elasticity of the first elastic element 10, and finally retracts to be hidden in the upper layer sheath, specifically to be positioned in the upper inner cavity, at the moment, although the cap 4 of the temperature sensing assembly retracts to be hidden in the upper layer sheath, under the action of the elasticity of the first elastic element 10, the top of the cap 4 is always in close contact with the bottom of the cooker, so that the temperature condition of the cooker is effectively monitored. Subsequently, under the gravity action of the cooker, the temperature sensing assembly, the heat insulation sheath and the support ring synchronously move downwards, and under the action of the first limiting piece 11 and the second limiting piece 16, the second elastic element 14 is continuously compressed until the cooker is placed and supported on the pot frame. Because the temperature sensing component is always hidden in the upper layer sheath which has lower heat conductivity coefficient and is made of non-metal material in the working process, the influence of the flame swing of the gas stove on the temperature sensing component is effectively avoided, the temperature sensing component can accurately measure the temperature of the cooker, and the misoperation is avoided. Furthermore, for a cooker with low heat conductivity coefficient, because the set dry-burning temperature is lower, the temperature sensing assembly is particularly sensitive to the influence of flame; the temperature sensing component of the embodiment is hidden in the upper layer sheath in a working state, so that the influence of flame swing on the temperature sensing component can be effectively prevented, the phenomenon of misoperation caused by rapid temperature rise due to the influence of flame is avoided, and the problem of dry burning prevention of cookers with low heat conductivity coefficients or multi-layer composite bottoms is effectively solved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (10)
1. A combined type dry burning prevention temperature sensing device is characterized by comprising a heat insulation sheath, a temperature sensing assembly for detecting the temperature of a cooker and a first elastic element; wherein, the first and the second end of the pipe are connected with each other,
the heat insulation sheath comprises an upper sheath and a lower sheath which are made of non-metal materials, the upper sheath is connected with the lower sheath, and the upper sheath is positioned above the lower sheath;
a first limiting part is arranged in the heat insulation sheath, the temperature sensing assembly can be longitudinally and slidably arranged in an inner cavity of an upper-layer sheath of the heat insulation sheath and is positioned above the first limiting part, and an anti-falling limiting part for preventing the temperature sensing assembly from popping out of a top opening of the upper-layer sheath is arranged on the temperature sensing assembly;
a first elastic element is arranged between the temperature sensing assembly and the first limiting part, and under a normal state, the elasticity of the first elastic element always enables the temperature sensing end of the temperature sensing assembly to extend out of the top opening of the upper-layer sheath.
2. The combined temperature sensing device of claim 1, wherein the upper layer of sheath comprises a heat insulation part and a connection part, the connection part is connected to a lower end of the heat insulation part, an outer diameter of the connection part is smaller than an outer diameter of the heat insulation part, and the lower layer of sheath is sleeved outside the connection part.
3. The combined temperature-sensing device of claim 1 or 2, wherein the lower sheath is made of metal material.
4. The combined temperature sensing device for preventing dry heating of claim 1, wherein the upper layer sheath and the lower layer sheath are connected and fixed by bonding or fastening.
5. The combined temperature sensing device of claim 1, wherein the coating on the outer wall of the upper sheath is provided with a thermochromic material.
6. The combined type temperature sensing device for preventing dry burning of the gas stove of claim 1, further comprising a second elastic element and a fixed supporting member, wherein the fixed supporting member is arranged in the inner cavity of the heat insulation sheath and is positioned below the first limiting member, and the fixed supporting member is fixedly connected with a part of the gas stove; the second elastic element is arranged in the heat insulation sheath and is positioned between the first limiting piece and the fixed supporting piece; the elastic modulus of the second elastic element is greater than the elastic modulus of the first elastic element.
7. The combined dry-heating preventing temperature sensing device according to claim 6, wherein the fixing support comprises a second limiting member and a sleeve, the second limiting member is disposed in the inner cavity of the heat insulation sheath, one end of the sleeve is connected to the second limiting member, and the other end of the sleeve extends downward; the second elastic element is arranged between the first limiting piece and the second limiting piece.
8. The combined temperature-sensing device of claim 7, further comprising a support ring; the support ring is arranged at the bottom of the lower-layer sheath and is fixedly connected with the lower-layer sheath; the second limiting part is arranged above the support ring, and the sleeve is arranged in the through hole of the support ring in a penetrating mode.
9. The combined temperature sensing device of claim 8, wherein the bottom of the upper layer of sheath is connected to the top of the supporting ring, and the bottom of the inner wall of the lower layer of sheath is connected to the side of the supporting ring.
10. The combined temperature sensing device of claim 7, wherein the first and second position limiters are both arranged in a ring structure, and the first and second position limiters are both provided with connecting holes for a wire to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221763260.0U CN217816890U (en) | 2022-07-08 | 2022-07-08 | Combined dry burning prevention temperature sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221763260.0U CN217816890U (en) | 2022-07-08 | 2022-07-08 | Combined dry burning prevention temperature sensing device |
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| Publication Number | Publication Date |
|---|---|
| CN217816890U true CN217816890U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221763260.0U Active CN217816890U (en) | 2022-07-08 | 2022-07-08 | Combined dry burning prevention temperature sensing device |
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| Country | Link |
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| CN (1) | CN217816890U (en) |
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2022
- 2022-07-08 CN CN202221763260.0U patent/CN217816890U/en active Active
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