CN210626312U - Smoke detection device for range hood and range hood with smoke detection device - Google Patents
Smoke detection device for range hood and range hood with smoke detection device Download PDFInfo
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- CN210626312U CN210626312U CN201920935707.XU CN201920935707U CN210626312U CN 210626312 U CN210626312 U CN 210626312U CN 201920935707 U CN201920935707 U CN 201920935707U CN 210626312 U CN210626312 U CN 210626312U
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- range hood
- photoelectric
- detection device
- tube
- smoke detection
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- 239000000779 smoke Substances 0.000 title claims abstract description 81
- 238000001514 detection method Methods 0.000 title claims abstract description 71
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003546 flue gas Substances 0.000 claims abstract description 14
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000010411 cooking Methods 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a flue gas detection device for range hood, including the main casing body, be provided with drain pan, photoemissive tube and the photoelectric receiving tube of the first circulation hole of a plurality of, be formed with after the main casing body and the drain pan assembly and be used for installing photoelectric emission pipe with the cavity of photoelectric receiving tube, photoemissive tube and photoelectric receiving tube set up to two, two respectively at least photoelectric emission pipe and two the crisscross setting of each other of photoelectric receiving tube is on the main casing body and is located the cavity. The utility model also discloses a range hood. The utility model discloses a with the crisscross setting of photoemissive tube and photoelectric receiving tube each other in the main casing body of long cubic for whole smoke detection device's overall structure is for long cubic, like this both effectual detection range when increaseing the detection oil smoke, has improved the detection precision of oil smoke again, has also avoided simultaneously when the user uses cooking utensils on one side, and the oil smoke detects not accurate problem.
Description
Technical Field
The utility model belongs to the technical field of range hood, concretely relates to smoke detection device for range hood and range hood thereof.
Background
At present, the serious problem existing in the existing range hood adopting an automatic control mode is that in the using process, the oil smoke part entering the air inlet of the fan through the air inlet of the range hood enters a detection device for realizing automatic control, and after the range hood is used for a long time, the accumulated oil smoke can seriously pollute circuit components in the detection device, which can seriously affect the detection device, cause the reduction of the detection precision of the detection device and further affect the realization of the automatic control of the range hood; the detection area of the existing smoke detection sensor is small, and the smoke detection sensor cannot cover a large detection area, and when the range hood is used, the smoke distribution in the range hood is not uniform due to the fact that only one side of the range hood is used most of the time, and the smoke detection in a small area can cause the phenomenon of accuracy reduction.
In addition, the air volume control of the range hood is the most frequent function of the range hood operation. Most of the time, the user needs to switch the gear operation when cooking, and if manual switching operation is performed at the time, interference to cooking is inevitable, especially for people who are unfamiliar with cooking. There is also a more common situation that a user often forgets to switch gears in time, and when cooking is changed from a small oil smoke situation to a large oil smoke situation, forgets to switch gears in time, so that a large amount of oil smoke overflows to pollute a kitchen. The consequences of this are the most serious, which can lead to a poor user experience of the range hood. Therefore, in order to avoid the situation, many users of the range hood adopt a corresponding mode that the range hood is opened to the maximum gear during the use process of the range hood; although the worst oil smoke can be prevented from overflowing in a large amount, the energy consumption of the range hood is increased, and the noise is always high.
SUMMERY OF THE UTILITY MODEL
In view of this, the main object of the present invention is to provide a smoke detection device for a range hood, which solves the problem that the smoke detection device in the prior art has a small detection range, and when a cooker on one side is used, the smoke distribution is easily uneven, thereby causing the detection accuracy to decrease; the utility model aims at providing a range hood that contains this flue gas detection device and flue gas detection method thereof still.
The utility model adopts the technical proposal that: the utility model provides a flue gas detection device for range hood, includes the main casing body, is provided with drain pan, photoelectric emission pipe and the photoelectric reception pipe of the first air current hole of a plurality of, be formed with after main casing body and the drain pan assembly and be used for installing photoelectric emission pipe with the cavity of photoelectric reception pipe, photoelectric emission pipe and photoelectric reception pipe set up to two at least respectively, two photoelectric emission pipe and two the crisscross setting of each other of photoelectric reception pipe is on the main casing body and is located the cavity.
Preferably, the main housing includes a main housing body, a fixing plate and a light tube, the fixing plate is disposed in a cavity of the main housing body, the light tube is fixedly disposed on the fixing plate, and the two photoelectric emission tubes and the two photoelectric receiving tubes are alternately disposed on the fixing plate and located in the light tube.
Preferably, the main case body is shaped in a rectangular shape.
Preferably, the fixing plate is provided with a photoelectric tube mounting hole, the photoelectric emission tube and the photoelectric receiving tube are both fixedly arranged in the photoelectric tube mounting hole, each photoelectric tube mounting hole is provided with a second air flow through hole along the circumference thereof, and the second air flow through holes are also positioned in the optical fiber drum.
Preferably, the emission angle of the photoemissive tube is greater than 60 degrees.
Preferably, the smoke detection device further comprises a filter sheet, and the filter sheet is arranged on the bottom shell and covers the first air circulation hole.
Preferably, a plurality of clamping grooves are formed in the side wall of the main shell, buckles with the same number as the plurality of clamping grooves are arranged on the side, provided with the filter sheet, of the bottom shell, and the clamping grooves are connected with the buckles in a matched mode.
The utility model discloses a another technical scheme is realized like this: a range hood comprises a range hood body and the smoke detection device, wherein the smoke detection device is arranged at the lower position on a door plate of a box body in the range hood body along the horizontal direction and extends into a smoke flowing channel in the range hood body.
Preferably, a fan system is further arranged in the range hood body, and the oil smoke flow channel is communicated with the fan system.
Compared with the prior art, the utility model discloses a with the crisscross setting of photoemissive tube and photoelectric receiving tube each other in the main casing body of long cubic for whole smoke detection device's overall structure is long cubic, like this both effectual detection range when having increaseed the detection oil smoke, has improved the detection precision of oil smoke again, has also avoided simultaneously when the user uses cooking utensils on one side, and the oil smoke detects not accurate problem.
Drawings
Fig. 1 is an exploded view of a smoke detection device for a range hood provided in embodiment 1 of the present invention.
Fig. 2 is a schematic cross-sectional structure view of a smoke detection device for a range hood provided in embodiment 1 of the present invention;
fig. 3 is a schematic view of a three-dimensional structure of an outer housing in a smoke detection device for a range hood provided in embodiment 1 of the present invention;
fig. 4 is a schematic view of a three-dimensional structure of an outer housing in a smoke detection device for a range hood provided in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a bottom shell in a smoke detection device for a range hood provided in embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a filter in a smoke detection device for a range hood provided in embodiment 1 of the present invention;
fig. 7 is a first structural schematic diagram of a range hood provided in embodiment 2 of the present invention;
fig. 8 is a schematic structural diagram of a range hood provided in embodiment 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be clear that the terms "vertical", "horizontal", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or element referred to must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.
The embodiment 1 of the present invention provides a smoke detection device for a range hood, as shown in fig. 1 and fig. 2, including a main housing 10, a bottom shell 11 provided with a plurality of first air vents 111, a photoelectric emission tube 12 and a photoelectric receiving tube 13, a cavity for installing the photoelectric emission tube 12 and the photoelectric receiving tube 13 is formed after the main housing 10 and the bottom shell 11 are assembled, the number of the photoelectric emission tube 12 and the photoelectric receiving tube 13 is at least two, and the two photoelectric emission tubes 12 and the two photoelectric receiving tubes 13 are mutually staggered and arranged on the main housing 10 and located in the cavity; the specific number of the photoelectric emission tubes 12 and the photoelectric receiving tubes 13 can be changed according to the specification of the range hood, in this embodiment, two photoelectric emission tubes 12 are provided, and three photoelectric receiving tubes 13 are provided.
Further, as shown in fig. 3 and 4, the main housing 10 includes a main housing body 101, a fixing plate 102 and a light tube 103, the fixing plate 102 is disposed in a cavity of the main housing body 101, the light tube 103 is fixedly disposed on the fixing plate 102, and the two photo-emission tubes 12 and the two photo-reception tubes 13 are alternately disposed on the fixing plate 102 and located in the light tube 103, wherein the main housing body 101 is shaped as a rectangle.
After adopting above-mentioned scheme, through the setting with photoelectric emission pipe 12 and photoelectric receiving tube 13 crisscross each other in the main casing body 10 of rectangular bodily form for whole smoke detection device's overall structure is rectangular bodily form, and both effectually enlarged the detection range when detecting the oil smoke like this, improved the detection precision of oil smoke again, also avoided simultaneously when the user uses cooking utensils on one side, the oil smoke detects not accurate problem. In addition, through set up light barrel 103 on fixed plate 102, and set up photoemissive tube 12 and photoelectric receiving tube 13 in light barrel 103, effectual transmitted light to photoemissive tube 12 and the received light of photoelectric receiving tube 13 are injectd, the precision that can better realize whole detection device like this, in addition, light barrel 103 is used for the transmission of photoemissive tube 12 transmitted light signal and is used for the light signal of photoelectric receiving tube 13 receipt smog diffuse reflection, light barrel 103 also undertakes the effect of air current through-hole simultaneously. Further, a photoelectric tube mounting hole 1021 is arranged on the fixing plate 102, the photoelectric emission tube 12 and the photoelectric receiving tube 13 are both fixedly arranged in the photoelectric tube mounting hole 1021, each photoelectric tube mounting hole 1021 is provided with a second air flow through hole 1022 along a circumference thereof, the second air flow through hole 1022 is also located in the optical fiber drum 103, wherein the photoelectric tube mounting hole 1021 is preferably cylindrical; each of the photo-tube mounting holes 1021 is provided with at least two second air flow through holes 1022, preferably four, along one circumference thereof; in addition, the second airflow through holes 1022 are disposed on the fixing plate 102 and located in the light tube 103, and each light tube 103 is correspondingly provided with the air outlet gap small hole 1031, the air outlet gap small hole 1031 effectively prevents the smoke in the oil smoke flowing channel 23 from flowing back to the light tube 103 to pollute the photoelectric emission tube 12 and the photoelectric receiving tube 13, so as to affect the detection result.
Further, the emission angle of the photoemissive tube 12 is greater than 60 degrees.
Further, as shown in fig. 1 and 6, the smoke detection device further includes a filter 14, and the filter 14 is disposed on the bottom case 11 and covers the first air circulation hole 111.
After the scheme is adopted, the second airflow through hole 1022 is arranged in the light ray tube 103, so that when the range hood is started, due to the existence of negative pressure, kitchen air flows into the first airflow through hole 111 on the bottom shell from a gap between the decorative cover 23 of the range hood and the door plate 21 of the box body, is filtered by the filter sheet 14 to become clean air, then flows into a separation cavity formed by the main shell body 101 and the bottom shell 11, and then flows out from the small air outlet gap hole 1031 of the light ray tube 103 through the second airflow through hole 1022 on the main shell body 101 to enter the box body; therefore, in the operation process of the cigarette machine, the smoke can not enter the cylindrical photoelectric mounting hole 1021, and the photoelectric emission tube 12 and the photoelectric receiving tube 13 are both arranged in the cylindrical photoelectric mounting hole 1021 in the light cylinder, so that the photoelectric emission tube 12 and the photoelectric receiving tube 13 are not polluted.
Further, as shown in fig. 4 and 5, a plurality of locking grooves 1011 are formed on the side wall of the main housing body 101, the fastening tabs 112 with the same number as the plurality of locking grooves 1011 are formed on the side wall of the bottom housing 11 having the filter 14, and the locking grooves 1011 are connected with the fastening tabs 112 in a matching manner.
Further, the bottom case 11 is further provided with a mounting hole 114 and a through hole 113 for passing a data line.
The embodiment 2 of the utility model provides a range hood, as shown in fig. 7, including range hood body 2, embodiment 1 flue gas detection device 1, flue gas detection device 1 sets up the below position department on box door plant 21 in range hood body 2 along the horizontal direction and stretches to in the interior oil smoke flow channel 23 of range hood body 2.
Further, as shown in fig. 8, a fan system 22 is further disposed in the range hood body 2, and the oil smoke flow channel 23 is communicated with the fan system 22. Through with embodiment 1 in the flue gas detection device 1 be applied to range hood, during the use, can make the oil smoke in the oil smoke flow path in time discharged to the effectual oil smoke that has reduced is in the utility model discloses gather on other parts in flue gas detection device 1 and the range hood, so not only improved the precision that the flue gas detected, prolonged moreover the utility model discloses flue gas detection device 1 and range hood's life.
The embodiment 2 of the utility model provides a range hood's flue gas detection method as follows:
starting the range hood, and detecting whether oil smoke exists in the oil smoke flow channel in real time by the smoke detection device 1;
if there is oil smoke, the light emitted from the photoelectric emission tube 12 in the smoke detection device 1 enters the photoelectric receiving tube 13 after the oil smoke particles are diffused, the photoelectric receiving tube 13 generates a reaction voltage and feeds back the reaction voltage signal to the controller, and the controller adjusts the flow of the fan in the range hood according to the magnitude of the reaction voltage to discharge the oil smoke.
If there is no oil smoke, the light emitted from the photoelectric emission tube 12 in the smoke detection device 1 does not enter the photoelectric receiving tube 13, i.e. the photoelectric receiving tube 13 does not generate a reaction voltage, and the controller does not adjust the flow rate of the fan in the range hood.
By adopting the control method, the oil smoke can be automatically and timely discharged without switching gears when a user cooks, so that the problem that the oil smoke overflows in a large quantity to pollute a kitchen is avoided; meanwhile, the energy consumption of the range hood and the noise of the range hood are reduced.
The utility model discloses a setting that interlocks mutually photoelectric emission tube 12 and photoelectric receiving tube 13 in the main shell body 101 of cuboid bodily form for the overall structure of whole flue gas detection device 1 is the cuboid bodily form, so both effectively having strengthened the detection range when detecting the oil smoke, improved the detection precision of oil smoke again, also avoided when the user uses cooking utensils on one side simultaneously, the oil smoke detects inaccurate problem; furthermore, through inciting somebody to action the utility model discloses in smoke gas detection device 1 is applied to range hood, during the use, can make the oil smoke in the oil smoke flow path in time discharged to the effectual oil smoke that has reduced is in the utility model discloses smoke gas detection device 1 and range hood are interior to gather on other parts, have so not only improved the precision that the flue gas detected, have also prolonged moreover the utility model discloses smoke gas detection device 1 and range hood's life.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a flue gas detection device for range hood, its characterized in that, includes main casing body (10), drain pan (11) that is provided with a plurality of first air current hole (111), photoelectric emission pipe (12) and photoelectric receiving tube (13), main casing body (10) are formed with after drain pan (11) assembly and are used for installing photoelectric emission pipe (12) with the cavity of photoelectric receiving tube (13), photoelectric emission pipe (12) and photoelectric receiving tube (13) set up to two at least respectively, two photoelectric emission pipe (12) and two photoelectric receiving tube (13) crisscross setting each other just are located the cavity on main casing body (10).
2. The smoke detection device for the range hood according to claim 1, wherein the main housing (10) comprises a main housing body (101), a fixing plate (102) and a light tube (103), the fixing plate (102) is disposed in a cavity of the main housing body (101), the light tube (103) is fixedly disposed on the fixing plate (102), and the two photoelectric emission tubes (12) and the two photoelectric receiving tubes (13) are alternately disposed on the fixing plate (102) and located in the light tube (103).
3. The smoke detection device for the range hood according to claim 2, wherein the main housing body (101) is shaped as a rectangle.
4. The smoke detection device for the range hood according to claim 2 or 3, wherein the fixing plate (102) is provided with a photoelectric tube mounting hole (1021), the photoelectric emission tube (12) and the photoelectric receiving tube (13) are both fixedly arranged in the photoelectric tube mounting hole (1021), each photoelectric tube mounting hole (1021) is provided with a second air flow through hole (1022) along a circumference thereof, and the second air flow through hole (1022) is communicated with the optical fiber barrel (103).
5. The smoke detection device for the range hood according to claim 1, 2 or 3, wherein the emission angle of the photoemissive tube (12) is greater than 60 degrees.
6. The smoke detection device for the range hood according to claim 1, further comprising a filter (14), wherein the filter (14) is disposed on the bottom shell (11) and covers the first air circulation hole (111).
7. The smoke detection device for the range hood according to claim 2 or 3, wherein a plurality of clamping grooves (1011) are formed in the side wall of the main shell, fasteners (112) with the same number as the plurality of clamping grooves (1011) are arranged on the side, provided with the filter (14), of the bottom shell (11), and the clamping grooves (1011) are connected with the fasteners (112) in a matched manner.
8. A range hood, characterized by comprising a range hood body (2) and a smoke detection device (1) according to any one of claims 1 to 7, wherein the smoke detection device (1) is horizontally arranged at a lower position on a box body door panel (21) in the range hood body (2) and extends into a smoke flow channel (23) in the range hood body (2).
9. The range hood according to claim 8, wherein a fan system (22) is further disposed in the range hood body (2), and the oil smoke flow channel (23) is communicated with the fan system (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935707.XU CN210626312U (en) | 2019-06-20 | 2019-06-20 | Smoke detection device for range hood and range hood with smoke detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935707.XU CN210626312U (en) | 2019-06-20 | 2019-06-20 | Smoke detection device for range hood and range hood with smoke detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210626312U true CN210626312U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920935707.XU Active CN210626312U (en) | 2019-06-20 | 2019-06-20 | Smoke detection device for range hood and range hood with smoke detection device |
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|---|---|
| CN (1) | CN210626312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261314A (en) * | 2019-06-20 | 2019-09-20 | 华帝股份有限公司 | Smoke detection device for range hood, range hood and smoke detection method of range hood |
-
2019
- 2019-06-20 CN CN201920935707.XU patent/CN210626312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261314A (en) * | 2019-06-20 | 2019-09-20 | 华帝股份有限公司 | Smoke detection device for range hood, range hood and smoke detection method of range hood |
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