CN220024777U - Non-contact type dry-burning prevention probe - Google Patents
Non-contact type dry-burning prevention probe Download PDFInfo
- Publication number
- CN220024777U CN220024777U CN202320773801.6U CN202320773801U CN220024777U CN 220024777 U CN220024777 U CN 220024777U CN 202320773801 U CN202320773801 U CN 202320773801U CN 220024777 U CN220024777 U CN 220024777U
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- lens
- heat transfer
- probe
- contact dry
- transfer cavity
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- 239000000523 sample Substances 0.000 title claims abstract description 23
- 230000002265 prevention Effects 0.000 title claims abstract description 7
- 238000012546 transfer Methods 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052755 nonmetal Inorganic materials 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000032683 aging Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 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
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The utility model discloses a non-contact dry-burning prevention probe applied to a kitchen range, which comprises: the heat conducting head is arranged at one end of the heat transfer cavity, a lens or a window sheet is arranged at the other end of the heat transfer cavity, and a photoelectric sensor is arranged at the outer side of the lens or the window sheet. The temperature sensor is arranged below the bottom of the pot, the heat conduction head is used for conducting the temperature at the bottom of the pot into the heat transfer cavity, and then the conducted temperature is measured through the photoelectric sensor. The utility model can work for a long time in a high-temperature environment for a long time, and the service life of the utility model is prolonged.
Description
Technical Field
The utility model relates to a security detection device, in particular to a non-contact dry-burning prevention probe.
Background
In order to prevent fire accidents caused by dry burning of the cookware due to negligence of operators in the cooking process, a detector for preventing dry burning is generally required to be arranged on a cooker to monitor the temperature of the bottom of the cooker, so that the fire caused by dry burning of the cookware is prevented. At present, a probe for preventing dry heating is mainly in contact, one end of the probe is in contact with the bottom surface of a pot, and the temperature of the bottom of the pot is detected through a thermocouple. The contact probe uses a spring to adjust the distance in order to achieve good contact with the bottom of the pan. However, the contact probe has the following disadvantages: firstly, the probe is directly contacted with high temperature for a long time, ageing and fatigue are accelerated, and finally the problem that readings drift gradually and are inaccurate occurs; secondly, the probes need to be closely attached to the surface of the pan bottom to measure relevant readings, but the pan has different attaching degrees according to different models, so that inaccurate temperature measurement is caused; thirdly, the probe can not sense the type of the cooker, so that the accuracy of measuring the temperature of the bottom of the cooker can be affected by the shape of the cooker, and the temperature control threshold value can be different, so that misjudgment can be caused.
Disclosure of Invention
The utility model aims to provide a non-contact dry-burning prevention probe, which aims to solve the problems of accelerated aging and fatigue caused by long-time direct contact of the probe with the high temperature of a pot bottom.
The utility model is realized by the following structure, which comprises: the heat conducting head is arranged at one end of the heat transfer cavity, a lens or a window sheet is arranged at the other end of the heat transfer cavity, and a photoelectric sensor is arranged at the outer side of the lens or the window sheet.
Further improvement, the heat conducting head is a metal heat conducting head or a nonmetal heat conducting head.
Further improvement, the heat transfer cavity is in a cylindrical shape, a truncated cone shape or a split shape with more than two truncated cones.
Further improvements are provided in which the heat transfer chamber is located within a metallic or non-metallic housing.
Further improvements, the photoelectric sensor is a thermopile, pyroelectric, camera or thermopile array.
Further improvement, the photoelectric sensor is connected with an interface circuit.
Further improvements are provided wherein the lens is a convex lens, a concave lens, a window sheet or a combination lens group.
The utility model adopts the heat conduction head to conduct the temperature at the bottom of the pot to the heat transfer cavity, and then the temperature is measured by the electric sensor, so that the utility model can work in a high-temperature environment for a long time, and the service life of the utility model is prolonged. Secondly, the utility model can be suitable for cookers with different shapes, and the problem of larger temperature measurement deviation caused by contact failure can be avoided.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the structure of the present utility model.
Detailed Description
The present utility model as shown in fig. 1 includes: the heat conducting head 1, heat conducting head 1 locates the one end in heat transfer chamber 3, and the other end in heat transfer chamber 3 is equipped with lens or window piece 4, and the outside of lens or window piece 4 is equipped with photoelectric sensor 5. The heat conducting head 1 is in a rod shape, the heat conducting head 1 is a metal heat conducting head or a nonmetal heat conducting head, the metal heat conducting head can be made of aluminum, copper or aluminum alloy, and the nonmetal heat conducting head can be made of ceramic, graphite or silicon carbide. The heat transfer cavity 3 is positioned in the metal shell 2, and the heat transfer cavity 3 is formed by splicing two round tables formed by adopting a nonmetallic lining. One end of the heat transfer cavity 3 is provided with a heat conducting head 1, the other end of the heat transfer cavity is provided with a lens or a window sheet 4, the heat transfer cavity 3 conducts the heat received by the heat conducting head 1 into the heat transfer cavity 3, and the heat transfer cavity 3 is used as a radiant energy collecting and gathering device to collect radiant energy as much as possible. The lens or window 4 filters the thermal radiation signal in the heat transfer chamber 3 and insulates it, while the filtering of the lens or window 4 avoids the influence of other spurious spectrum segments to improve the signal sensitivity of the underlying photosensor. The lens may be a convex lens, a concave lens or a combined lens group, and the combined lens group is a combination of convex lenses and/or concave lenses.
The photoelectric sensor 5 is a thermopile, pyroelectric, camera or thermopile array. The photoelectric sensor 5 is connected with an interface circuit, the interface circuit is used for being connected with a controller, so that analog or digital signals are transmitted to the controller, and the controller is a signal processing chip. The photoelectric sensor 5 collects heat information in the heat transfer cavity through the lens or window 4 and transmits heat signals to the controller.
As an improvement of the utility model, the heat transfer cavity is positioned in the nonmetallic shell, and the heat transfer cavity is integrally formed by the nonmetallic shell. The heat transfer cavity can also be cylindrical or truncated cone-shaped.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model, and various modifications to the embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the spirit or scope of the present utility model. Therefore, all technical schemes which are the same as or similar to the embodiment fall within the protection scope of the utility model.
Claims (10)
1. A non-contact dry-fire prevention probe, comprising: the heat conduction head, its characterized in that: the heat conducting head is arranged at one end of the heat transfer cavity, a lens or a window sheet is arranged at the other end of the heat transfer cavity, and a photoelectric sensor is arranged at the outer side of the lens or the window sheet.
2. A non-contact dry-fire prevention probe according to claim 1, wherein: the heat conducting head is a metal heat conducting head or a nonmetal heat conducting head.
3. A non-contact dry heat resistant probe as claimed in claim 1 or 2, wherein: the heat transfer cavity is in a cylindrical shape, a truncated cone shape or a split shape with more than two truncated cones.
4. A non-contact dry heat resistant probe as set forth in claim 3, wherein: the heat transfer cavity is positioned in a metal or nonmetal shell.
5. A non-contact dry fire protection probe according to claim 1, 2 or 4, wherein: the photoelectric sensor is a thermopile, pyroelectric, camera or thermopile array.
6. A non-contact dry heat resistant probe as set forth in claim 3, wherein: the photoelectric sensor is a thermopile, pyroelectric, camera or thermopile array.
7. A non-contact dry heat resistant probe as in claims 1, 2, 4 or 6 wherein: the photoelectric sensor is connected with the interface circuit.
8. A non-contact dry heat resistant probe as set forth in claim 3, wherein: the photoelectric sensor is connected with the interface circuit.
9. A non-contact dry heat resistant probe as in claims 1, 2, 4 or 6 wherein: the lens is a convex lens, a concave lens or a combined lens group.
10. A non-contact dry heat resistant probe as set forth in claim 3, wherein: the lens is a convex lens, a concave lens or a combined lens group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320773801.6U CN220024777U (en) | 2023-04-10 | 2023-04-10 | Non-contact type dry-burning prevention probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320773801.6U CN220024777U (en) | 2023-04-10 | 2023-04-10 | Non-contact type dry-burning prevention probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220024777U true CN220024777U (en) | 2023-11-17 |
Family
ID=88724448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320773801.6U Active CN220024777U (en) | 2023-04-10 | 2023-04-10 | Non-contact type dry-burning prevention probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220024777U (en) |
-
2023
- 2023-04-10 CN CN202320773801.6U patent/CN220024777U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |