CN220669533U - Fume exhauster - Google Patents
Fume exhauster Download PDFInfo
- Publication number
- CN220669533U CN220669533U CN202321778496.6U CN202321778496U CN220669533U CN 220669533 U CN220669533 U CN 220669533U CN 202321778496 U CN202321778496 U CN 202321778496U CN 220669533 U CN220669533 U CN 220669533U
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- smoke
- area
- detection
- push rod
- fan
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- 239000003517 fume Substances 0.000 title description 2
- 238000001514 detection method Methods 0.000 claims abstract description 163
- 239000000779 smoke Substances 0.000 claims abstract description 128
- 238000007789 sealing Methods 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims 4
- 238000010411 cooking Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a range hood, which comprises an air duct cavity communicated with an air suction port, wherein a smoke detection device is arranged in the air duct cavity, the smoke detection device is fixedly arranged on a push rod, the range hood further comprises a driving device fixedly connected to the range hood, the driving device drives the push rod to move, and enables the smoke detection device to respectively locate and detect fixed-point detection states at a first detection position and a second detection position, and the range hood further comprises a state that the driving device drives the push rod, and enables the smoke detection device to move from the first detection position to the second detection position, or the driving device drives the push rod, and enables the smoke detection device to move from the second detection position to the first detection position; the position of the smoke detection device can be changed under the drive of the driving device, the smoke detection device has the detection function of multiple points and multiple areas, the detection function is stronger, and the detection result is more comprehensive and accurate.
Description
Technical Field
The utility model belongs to the technical field of kitchen appliances, and particularly relates to a range hood.
Background
The intelligent level of the range hood is higher and higher, and the rotation speed of the smoke exhaust fan can be automatically adjusted by detecting whether oil smoke escapes during cooking or not and the oil smoke concentration during cooking. Whether oil smoke escapes during cooking is detected through the PM2.5 detection component, and oil smoke concentration during cooking is detected through the smoke sensing detection component arranged in the air duct cavity in the casing of the smoke machine. The smoke sensing component of the existing range hood is fixedly arranged in the air duct cavity, and has the following problems: firstly, can not detect the oil smoke concentration of different regions in the wind channel chamber, do not have multiple spot detection function, secondly, its general setting is in the great region of oil smoke concentration, and it can not remove the region of low concentration oil smoke, is polluted by high concentration oil smoke easily to lose oil smoke detection function.
Disclosure of Invention
The utility model aims to provide a range hood, and aims to solve the problems that smoke sensing components of the existing range hood are fixedly arranged, have no multi-point detection function and cannot move to a low-concentration smoke area, are easily polluted by high-concentration smoke and lose the smoke detection function.
In order to achieve the above object, a range hood is provided, which comprises an air duct cavity communicated with an air suction port, a smoke sensing detection device is arranged in the air duct cavity, the smoke sensing detection device is fixedly arranged on a push rod, the range hood further comprises a driving device fixedly connected to the range hood, the driving device drives the push rod to move, enables the smoke sensing detection device to respectively locate and detect fixed-point detection states at a first detection position and a second detection position, and further comprises the driving device to drive the push rod, and enables the smoke sensing detection device to move from the first detection position to the second detection position, or the driving device drives the push rod, and enables the smoke sensing detection device to move from the second detection position to the first detection position.
Further, the air duct cavity comprises a near air suction inlet area, a lower area of a fan suction inlet and an area above the central axis of the fan, the near air suction inlet area is close to the air suction inlet, the lower area of the fan suction inlet takes the central axis of the fan as a base line, an extension plane passing through the base line divides the fan into an upper part and a lower part, the air duct cavity area above the extension plane is the area above the central axis of the fan, and the air duct cavity area below the extension plane is the near air suction inlet area and the lower area of the fan suction inlet; and a connecting line between the geometric center of the air suction port and the central axis center of the fan, a dividing plane parallel to the extension plane is arranged at a position of the connecting line, which is 2/5 of the total length of the connecting line, from the air suction port, a part below the dividing plane is a near air suction port area, and an area between the dividing plane and the extension plane is a lower area of the suction port of the fan.
Further, the first detection position is located in any one of the near-suction-inlet region, the lower region of the suction inlet of the fan and the region above the central axis of the fan; the second detection position is positioned in any one of the near-suction opening area, the lower area of the suction inlet of the fan and the area above the central axis of the fan except the area where the first detection position is positioned.
Further, the driving device drives the push rod to drive the smoke detection device to move from the first detection position to the second detection position, and the motion track of the smoke detection device is a straight line, so that the smoke detection device sequentially passes through the near suction inlet region, the lower region of the suction inlet of the fan and the region above the central axis of the fan.
Further, the driving device drives the push rod to drive the smoke detection device to move from the first detection position to the second detection position, the motion track of the smoke detection device is an arc line, and the arc line is matched with the track of smoke flow, so that the smoke detection device sequentially passes through the near air suction inlet area, the lower area of the suction inlet of the fan and the area above the central axis of the fan.
Further, the driving device drives the smoke sensing detection device to the near-suction opening area and is close to the suction opening to perform positioning detection.
Further, the driving device drives the smoke detection device to the lower area of the suction inlet of the fan, and the smoke detection device is used for detecting the current maximum smoke concentration value.
Further, the driving device drives the smoke detection device to an area above the central axis of the fan and is close to the upper wall or the side wall of the air channel cavity.
Further, the driving device comprises a fixed bracket arranged on the top plate of the air duct cavity and a driving motor arranged on the fixed bracket, the driving motor is connected with the push rod through a screw rod structure, and the smoke detection device is arranged at one end of the push rod far away from the driving motor; the top plate of the air duct cavity is provided with a through hole, and the push rod and the smoke detection device extend into the air duct cavity from the through hole.
Further, the size of the horizontal projection of the through hole is larger than that of the push rod and that of the horizontal projection of the smoke detection device, and a sealing shock absorption ring is arranged at the joint of the through hole and the fixed support.
The smoke detection device is not fixedly arranged, the position of the smoke detection device can be changed under the drive of the driving device, the smoke detection device has the detection function of multiple points and multiple areas, the detection function is stronger, and the detection result is more comprehensive and accurate. In addition, when the smoke detection device detects the oil smoke exceeding the set value, and after the speed regulation of the fan is completed, the control driving device can drive the smoke detection device to move to a position with relatively low oil smoke concentration, so that the smoke detection device can avoid high-concentration oil smoke, the pollution of the oil smoke to the smoke detection device is reduced, and the smoke detection device can maintain the oil smoke detection function for a longer time. Additional advantages of the utility model are set forth in the description which follows.
Drawings
FIG. 1 is an exploded view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 when the smoke detection device is in a raised state;
FIG. 4 is a B-B cross-sectional view of FIG. 2 when the smoke detection device is in a raised state;
FIG. 5 is an enlarged view of region C of FIG. 4;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 2 when the smoke detection device is in a lowered state;
fig. 7 is a B-B sectional view of fig. 2 when the smoke detection device is in a lowered state.
Reference numerals: 1. a push rod; 3. a driving device; 2. a smoke detection device; 4. a smoke machine shell; 401. an air suction port; 5. a blower; 6. an extension plane; 7. connecting wires; 8. dividing the plane.
The specific embodiment is as follows:
in the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The following is further described with reference to the accompanying drawings and specific examples:
the range hood comprises a hood shell 4, a smoke sensing detection device 2 and a driving device 3, wherein a smoke suction port 401 is formed in the hood shell 4, an air channel cavity communicated with the smoke suction port 401 is formed in the hood shell 4, and a fan 5 and the smoke sensing detection device 2 are arranged in the air channel cavity, as shown in fig. 1, 2, 4 and 5. The driving device 3 is arranged at the upper end of the smoke machine shell 4, the driving device 3 comprises a fixed support arranged on the top plate of the air duct cavity and a driving motor arranged on the fixed support, the driving motor is connected with the push rod 1 through a screw rod structure, and the smoke sensing detection device 2 is arranged at one end of the push rod 1 far away from the driving motor through a screw. The top plate of the air duct cavity is provided with a through hole, and the push rod 1 and the smoke detection device 2 extend into the air duct cavity from the through hole. The horizontal projection size of the through hole is larger than that of the push rod and the smoke detection device, and a sealing shock ring is arranged at the joint of the through hole and the fixed support. When the range hood works, oil smoke is arranged in the air channel cavity, and the sealing shock absorption ring is arranged, so that the oil smoke in the air channel cavity can be prevented from overflowing through the sealing shock absorption ring, and further, the air pollution of a kitchen is caused. In addition, the sealed damping ring also has a damping function, and is helpful for reducing vibration of the driving motor during operation.
As shown in fig. 4 and 5, the air duct cavity includes a near-suction-port area, a lower area of the fan suction port and an area above the central axis of the fan, the near-suction-port area is near the suction port 401, the lower area of the fan suction port uses the central axis of the fan 5 as a base line, the fan 5 is divided into an upper part and a lower part by an extension plane 6 passing through the base line, the air duct cavity area above the extension plane 6 is an area above the central axis of the fan, and the air duct cavity area below the extension plane 6 is a near-suction-port area and a lower area of the fan suction port. A connecting line 7 between the geometric center of the air suction port 401 and the central axis center of the fan 5, a dividing plane 8 parallel to the extension plane 6 is formed at a position of the connecting line 7, which is 2/5 of the total length of the connecting line 7, from the air suction port 401, a part below the dividing plane 8 is a near air suction port area, and an area between the dividing plane 8 and the extension plane 6 is a lower area of the air suction port of the fan.
As shown in fig. 3, 4, 6 and 7, the smoke detection device 2 has at least two detection positions, i.e., at least a first detection position and a second detection position. The first detection position is located in any one of the near-suction-port area, the lower area of the suction inlet of the fan and the area above the central axis of the fan, and the second detection position is located in any one of the near-suction-port area, the lower area of the suction inlet of the fan and the area above the central axis of the fan except the area where the first detection position is located. In this embodiment, the first detection position of the smoke detection device 2 is preferably in the region near the air suction inlet, and the second detection position of the smoke detection device 2 is preferably in the region above the central axis of the fan. The driving motor of the driving device 3 can drive the driving device 3 to reach the first detection position and the second detection position for fixed-point detection, and the driving motor can drive the driving device 3 to switch the detection positions.
The number of detection positions may be set as desired, for example, in some exemplary embodiments, three detection positions may be set, where the three detection positions are located in the near-suction-inlet region, the lower region of the blower inlet, and the region above the central axis of the blower, respectively. The smoke detection device 2 may be changed in position by driving the driving device 3 in any one of the region near the suction inlet, the lower region of the suction inlet of the blower, and the region above the central axis of the blower.
Therefore, the smoke detection device 2 has a fixed point detection state in which the detection is performed at the first detection position and the second detection position, respectively, and also has a state in which the detection is performed from the second detection position to the first detection position or from the first detection position to the second detection position by the driving of the driving device 3.
The smoke detection device 2 is located at different positions, and the detection effect is different, for example, the driving device 3 drives the smoke detection device 2 to a region close to the air suction inlet, and the smoke detection device is positioned and detected close to the air suction inlet, so that the smoke detection device can be used for detecting when the smoke exhaust ventilator is just started. If the driving device 3 drives the smoke detection device 2 to the lower area of the suction inlet of the fan, the smoke detection device is used for detecting the current maximum smoke concentration value. If the driving device 3 drives the smoke detection device 2 to the area above the central axis of the fan and is close to the upper wall or the side wall of the air duct cavity, the smoke detection device 2 can avoid high-concentration oil smoke at the moment, so that the pollution of the oil smoke to the smoke detection device 2 is reduced.
The driving device 3 drives the push rod 1 to drive the smoke detection device 2 to move from the first detection position to the second detection position, and the motion track of the smoke detection device 2 is a straight line, so that the smoke detection device sequentially passes through the near air suction inlet region, the lower region of the air suction inlet of the fan and the region above the central axis of the fan.
In some exemplary embodiments, the driving device 3 drives the push rod 1 to drive the smoke detection device 2 to move from the first detection position to the second detection position, and the motion track of the smoke detection device 2 is an arc line, and the arc line is adapted to the track of the smoke flow, so as to sequentially pass through the near air suction inlet area, the lower area of the air suction inlet of the fan and the area above the central axis of the fan.
In summary, the smoke detection device 2 of the present application is not fixedly disposed, and the position thereof can be changed under the driving of the driving device 3, so that the smoke detection device has the detection function of multiple points and multiple areas, the detection function is stronger, and the detection result is more comprehensive and accurate. When the smoke detection device 2 detects that the maximum oil smoke concentration value exceeds the set value in the lower area of the suction inlet of the fan, the main control device of the range hood controls the fan 5 to increase the rotating speed so as to enhance the oil smoke suction effect and prevent the oil smoke from escaping to cause air pollution of a kitchen. After the main control device controls the fan 5 to increase the rotating speed, the smoke detection device 2 is not required to detect the maximum smoke concentration in the lower area of the suction inlet of the fan within a certain time, at this time, in order to prevent the smoke detection device 2 from being polluted by high-concentration smoke, the main control device can control the driving device 3 to move the smoke detection device 2 to the area above the central axis of the fan and to be close to the upper wall or the side wall of the air duct cavity, and the smoke concentration is lower or even the lowest relative to other positions of the air duct cavity. At this time, the smoke detection device 2 can avoid high-concentration oil smoke, so that the pollution of the oil smoke to the smoke detection device 2 is reduced, and the smoke detection function of the smoke detection device 2 can be kept for a longer time.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a range hood, includes the wind channel chamber of inlet scoop intercommunication, is provided with in this wind channel intracavity and feels detection device, its characterized in that, the detection device is felt to the cigarette is fixed mounting on the push rod, still includes fixed connection the drive arrangement on the range hood, this drive arrangement drive the push rod motion, and make the detection device is felt to the cigarette respectively in the fixed point detection state of first detection position and second detection position location detection, still includes drive arrangement drive the push rod, and make the detection device is felt to the cigarette is felt from first detection position to second detection position removal, perhaps drive arrangement drives the push rod, and make the detection device is felt to the cigarette is felt to the state that the second detection position moved to first detection position.
2. The range hood of claim 1 wherein said air duct cavity includes a near suction port area, a lower area of a blower inlet and an area above a central axis of a blower, said near suction port area being adjacent to said suction port, said lower area of a blower inlet dividing the blower into upper and lower portions with said central axis of the blower as a baseline, an extension plane passing through said baseline, said air duct cavity area above said extension plane being said upper area above said central axis of the blower, said air duct cavity area below said extension plane being said near suction port area and said lower area of a blower inlet; and a connecting line between the geometric center of the air suction port and the central axis center of the fan, a dividing plane parallel to the extension plane is arranged at a position of the connecting line, which is 2/5 of the total length of the connecting line, from the air suction port, a part below the dividing plane is a near air suction port area, and an area between the dividing plane and the extension plane is a lower area of the suction port of the fan.
3. The range hood of claim 2, wherein the first detection location is located in any of the near suction port region, the lower region of the blower suction port, and the region above the central axis of the blower; the second detection position is positioned in any one of the near-suction opening area, the lower area of the suction inlet of the fan and the area above the central axis of the fan except the area where the first detection position is positioned.
4. A range hood according to claim 3, wherein the driving device drives the push rod to drive the smoke sensing device to move from the first detection position to the second detection position, and the motion track of the smoke sensing device is a straight line, so that the smoke sensing device sequentially passes through the near air suction inlet area, the lower area of the air suction inlet of the fan and the area above the central axis of the fan.
5. A range hood according to claim 3, wherein the driving device drives the push rod to drive the smoke sensing device to move from the first detection position to the second detection position, and the motion track of the smoke sensing device is an arc line, and the arc line is adapted to the track of the smoke flow, so as to sequentially pass through the near air suction inlet region, the lower region of the air suction inlet of the fan, and the region above the central axis of the fan.
6. A range hood according to claim 1, wherein said drive means drives said smoke sensing means to a near suction port area and said positioning detection is performed proximate said suction port.
7. The range hood of claim 1, wherein the driving means drives the smoke sensing means to a lower region of the suction inlet of the blower for sensing a current maximum smoke concentration value.
8. A range hood according to claim 1 wherein the drive means drives the smoke sensing means to an area above the central axis of the blower and adjacent the upper or side walls of the tunnel chamber.
9. The range hood according to any one of claims 1 to 8, wherein the driving device comprises a fixing bracket arranged on the top plate of the air duct cavity and a driving motor arranged on the fixing bracket, the driving motor is connected with the push rod through a screw structure, and the smoke detection device is arranged at one end of the push rod far away from the driving motor; the top plate of the air duct cavity is provided with a through hole, and the push rod and the smoke detection device extend into the air duct cavity from the through hole.
10. The range hood of claim 9, wherein the dimension of the horizontal projection of the through hole is larger than the dimension of the horizontal projections of the push rod and the smoke detection device, and a sealing shock ring is arranged at the joint of the through hole and the fixing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321778496.6U CN220669533U (en) | 2023-07-07 | 2023-07-07 | Fume exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321778496.6U CN220669533U (en) | 2023-07-07 | 2023-07-07 | Fume exhauster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220669533U true CN220669533U (en) | 2024-03-26 |
Family
ID=90335826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321778496.6U Active CN220669533U (en) | 2023-07-07 | 2023-07-07 | Fume exhauster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220669533U (en) |
-
2023
- 2023-07-07 CN CN202321778496.6U patent/CN220669533U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |