Oil smoke monitoring device and kitchen equipment

Abstract

The utility model discloses an oil smoke monitoring device and kitchen equipment, and relates to the technical field of oil smoke detection devices.The oil smoke monitoring device comprises at least two detectors, and each detector is used for detecting the smoke particle concentration of an air inlet of the kitchen equipment and the smoke particle concentration of a suction area corresponding to each stove position; the projection of each suction area on the horizontal plane can cover the corresponding stove position; the kitchen equipment comprises a kitchen equipment body and the oil smoke monitoring device. According to the cooking fume monitoring device and the kitchen equipment, a plurality of detectors are arranged, so that the concentration of cooking fume particles can be simultaneously and respectively detected on cooking fume generated at different cooking positions, the concentration of the cooking fume at the different cooking positions can be clearly distinguished, and the concentration of the cooking fume at the different cooking positions can be comprehensively considered; and when the oil smoke concentration is high, the air speed is increased, and when the oil smoke concentration is low, the air speed is reduced, so that the range hood can be assisted to accurately improve the suction force.

Description

Technical Field

[0001] This utility model relates to the technical field of oil fume detection devices, and in particular to an oil fume monitoring device and kitchen equipment. Background Technology

[0002] A range hood is a kitchen appliance used to purify the kitchen environment. Existing range hoods, equipped with corresponding fume monitoring devices, automatically adjust and control the airflow by detecting the concentration of cooking fumes in real time. This improves the user experience of kitchen appliances, saves energy, and promotes the intelligent use of home appliances.

[0003] Existing fume monitoring devices can generally detect the concentration of fumes in the ducts of kitchen equipment, but they cannot accurately differentiate the concentration of fumes at different stove positions, nor can they accurately control the suction power of kitchen equipment. Therefore, there is an urgent need for a fume monitoring device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an oil fume monitoring device and kitchen equipment to solve the problems existing in the prior art and assist kitchen equipment in accurately improving suction power.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This invention provides an oil fume monitoring device, comprising at least two detectors. Each detector is used to detect the concentration of smoke particles in the air inlet of the kitchen appliance and the corresponding suction area of ​​each stove position. The projection of each suction area on a horizontal plane can cover the corresponding stove position. In one embodiment, it further includes a main housing, which is detachably connected to the outer wall of the kitchen appliance and has a closed cavity. Each detector is disposed within the closed cavity.

[0007] In one embodiment, two detectors are provided, which are used to detect the concentration of smoke particles in the left and right air intake areas of the air inlet of the kitchen equipment, respectively. The two detectors are symmetrically arranged about a center line, and the left and right air intake areas of the air inlet are symmetrically arranged about an axis of symmetry. The center line is collinear with the axis of symmetry.

[0008] In one embodiment, a control panel is provided inside the main housing. Each detector includes a transmitting component and a receiving component. Each transmitting component and each receiving component are signal-connected to the control panel. Each transmitting component is used to emit detection light, which can pass through the main housing. The two receiving components are respectively able to receive the detection light scattered by oil fume particles.

[0009] In one embodiment, one of the transmitting components is capable of emitting detection light covering at least a portion of the left air intake area, and the other transmitting component is capable of emitting detection light covering at least a portion of the right air intake area.

[0010] In one embodiment, the emitting component includes a light-emitting diode and an emitting lens, both of which are fixedly connected to the control panel. The light-emitting diode can emit detection light to the emitting lens, and the emitting lens can receive and diffuse the detection light.

[0011] In one embodiment, the receiving component includes a photoelectric receiver tube and a receiving lens, both of which are fixedly connected to the control panel. The receiving lens can focus the detection light scattered by the oil fume particles onto the photoelectric receiver tube, and the photoelectric receiver tube can receive the detection light scattered by the oil fume particles.

[0012] In one embodiment, the system further includes two optical windows symmetrically arranged on the main housing about the center line. The optical windows are used to block oil fume particles from entering the main housing while allowing light to pass through. Each detector is provided with one optical window. The detection light emitted by the emitting component of each detector and the detection light scattered by the oil fume particles received by the receiving component can both pass through the optical windows.

[0013] In one embodiment, each of the emitting components emits detection light obliquely upward, and the distance between the coverage areas of the detection light emitted by the two sets of emitting components gradually increases from bottom to top; the two optical windows are arranged at an angle, and the distance between the two optical windows gradually decreases from bottom to top.

[0014] This utility model also provides a kitchen appliance, including a kitchen appliance body and the aforementioned oil fume monitoring device, wherein the kitchen appliance body has the aforementioned air inlet.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This utility model discloses an oil fume monitoring device and kitchen equipment. It is equipped with multiple detectors to simultaneously and separately detect the concentration of oil fume particles generated at different stove positions, clearly distinguishing the oil fume concentration at different stove positions. The device comprehensively considers the oil fume concentration at different stove positions. The air inlet can be divided into multiple areas to extract oil fumes from different stove positions. The corresponding air inlet areas can cover the stove positions on a horizontal plane, thus achieving specific extraction areas for different stove positions. This accurately improves the detection of oil fume concentration at different stove positions, and adjusts the airflow speed at the air inlet according to the oil fume concentration. When the oil fume concentration is high, the airflow speed is increased; when the oil fume concentration is low, the airflow speed is decreased. This assists the range hood in precisely increasing its suction power. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the oil fume monitoring device in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the oil fume monitoring device in Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of the kitchen equipment in Embodiment 2 of this utility model;

[0021] In the diagram: 1. Main housing; 2. Light-emitting tube; 22. Left optical emission area; 222. Left optical receiving area; 2222. Left fume detection area; 3. Emitting lens; 33. Right optical emission area; 333. Right optical receiving area; 3333. Right fume detection area; 4. Photoelectric receiving tube; 5. Receiving lens; 6. Control panel; 7. Optical window; 8. Kitchen appliance body; 9. Left air intake area; 10. Right air intake area. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The purpose of this utility model is to provide an oil fume monitoring device and kitchen equipment to solve the problems existing in the prior art and to assist kitchen equipment in accurately improving suction power.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figure 1-2 As shown, this embodiment provides an oil fume monitoring device, including: at least two detectors, each detector being used to detect the concentration of smoke particles in the air inlet of the kitchen equipment and the corresponding suction area of ​​each stove position, and the projection of each suction area on the horizontal plane can cover the corresponding stove position.

[0027] This embodiment discloses an oil fume monitoring device and kitchen equipment. Multiple detectors are set up to simultaneously detect the concentration of oil fume particles generated at different stove positions, clearly distinguishing the oil fume concentration at different stove positions. The air inlet speed is adjusted according to the oil fume concentration, taking into account the oil fume concentration at different stove positions. The air inlet can be divided into multiple areas to extract oil fumes from different stove positions. The corresponding air inlet areas can cover the stove positions on a horizontal plane, thus achieving specific extraction areas for different stove positions. This improves the accuracy of detecting oil fume concentration at different stove positions. When the oil fume concentration is high, the air speed is increased; when the oil fume concentration is low, the air speed is decreased, thereby assisting the range hood in precisely increasing its suction power.

[0028] Furthermore, the concentration of oil fume particles detected here refers to the concentration of oil fume before it enters the air inlet.

[0029] In one embodiment, the fume monitoring device further includes a main housing 1, which is detachably connected to the outer wall of the kitchen appliance housing and has a closed cavity, in which each detector is disposed.

[0030] The detachable connection allows for easy replacement of the fume monitoring device, and the enclosed cavity protects the detector from contamination.

[0031] In one embodiment, two detectors are provided, which are used to detect the concentration of smoke particles in the left air intake area 9 and the right air intake area 10 of the air inlet of the kitchen equipment, respectively. The two detectors are symmetrically arranged about a center line, and the left air intake area 9 and the right air intake area 10 of the air inlet are symmetrically arranged about the axis of symmetry, with the center line collinear with the axis of symmetry.

[0032] The main housing 1 is positioned on the symmetrical axis of the air inlet of the kitchen equipment, enabling simultaneous detection of the left and right stoves. It clearly distinguishes the left air inlet area 9 and the right air inlet area 10. The two detectors are located on opposite sides of the symmetrical axis, allowing for precise testing of the concentration of smoke from the left and right stoves. This avoids interference between the smoke generated by the left and right stoves due to the detectors being biased to the left or right, which would affect the measurement results.

[0033] In one embodiment, a control panel 6 is provided inside the main housing 1. Each detector includes a transmitting component and a receiving component. Each transmitting component and each receiving component are signal connected to the control panel 6. Each transmitting component is used to emit detection light, which can pass through the main housing. The two receiving components can respectively receive the detection light scattered by the oil fume particles.

[0034] The control panel 6 is connected to each transmitting component and each receiving component, and can control the transmitting component to emit detection light and the receiving component to receive the detection light scattered by oil fume particles.

[0035] In one embodiment, one emitting component is capable of emitting detection light covering at least a portion of the left air intake area 9, and another emitting component is capable of emitting detection light covering at least a portion of the right air intake area 10.

[0036] The projection length of the detection light curtain of one emitting component on the horizontal plane covers the projection length of the left air intake area 9; the projection length of the detection light curtain of the other emitting component on the horizontal plane covers the projection length of the right air intake area 10. This ensures that the detection of oil fumes covers the entire left air intake area 9 on the horizontal plane, thereby increasing the detection range of oil fumes on the horizontal plane and improving the detection effect of oil fume concentration.

[0037] In one embodiment, the emitting component includes a light-emitting tube 2 and an emitting lens 3. Both the light-emitting tube 2 and the emitting lens 3 are fixedly connected to the control panel 6. The light-emitting tube 2 can emit detection light to the emitting lens 3, and the emitting lens 3 can receive the detection light and diffuse it.

[0038] The light-emitting tube 2 is used to emit light, and the emitting lens 3 can shape the detection light emitted by the light-emitting tube 2 into a fan-shaped light curtain on the vertical plane. The fan-shaped light curtain can increase the area for detecting oil fume, thereby increasing the coverage on the vertical plane.

[0039] Furthermore, the detection light here can be infrared light, visible light, or laser light.

[0040] In one embodiment, the receiving component includes a photoelectric receiver 4 and a receiving lens 5. Both the photoelectric receiver 4 and the receiving lens 5 are fixedly connected to the control panel 6. The receiving lens 5 can focus the detection light scattered by the oil fume particles onto the photoelectric receiver 4, and the photoelectric receiver 4 can receive the detection light scattered by the oil fume particles.

[0041] The receiving lens 5 can focus the detection light scattered by the oil fume particles onto the photoelectric receiving tube 4, and the photoelectric receiving tube 4 transmits the signal to the control panel 6.

[0042] In one embodiment, two optical windows 7 are also included. The two optical windows 7 are symmetrically arranged on the main housing 1 about the center line. The optical windows 7 are used to block oil fume particles from entering the main housing 1 and allow light to pass through. One optical window 7 is provided for each detector. The detection light emitted by the emitting component of each detector and the detection light scattered by the oil fume particles received by the receiving component can both pass through the optical window 7.

[0043] The detection light emitted by the light-emitting tube 2 is emitted sequentially through the emitting lens 3 and the optical window 7. The detection light scattered by the oil fume particles is received by the photoelectric receiving tube 4 after passing through the optical window 7 and the receiving lens 5. Because the optical window 7 is externally mounted, it prevents oil fume from contaminating the emitting and receiving components. Therefore, the decrease in detection accuracy caused by oil fume contamination during long-term operation is not a concern. Users can clean the optical window themselves by observing the oil fume contamination. After cleaning, the accuracy of the oil fume monitoring device will be restored. Furthermore, to ensure that oil does not enter the smoke detector, the oil fume monitoring device is designed to be sealed, with oil contamination only forming on the surface of the device.

[0044] In one embodiment, each emitting component emits detection light obliquely upward, and the distance between the coverage areas of the detection light emitted by the two sets of emitting components gradually increases from bottom to top; the two optical windows 7 are arranged obliquely, and the distance between the two optical windows 7 gradually decreases from bottom to top.

[0045] The emitting components are all tilted and gradually move towards the center from bottom to top, which ensures that the fume monitoring device can be located below the air inlet of the kitchen equipment, so that the detection light curtain is in a suitable position in the fume air inlet. Similarly, the optical window 7 is tilted to accommodate the installation of the detector. This overall arrangement makes it convenient for the entire fume monitoring device to be installed at the bottom of the air inlet.

[0046] In one embodiment, the optical window 7 is made of transparent glass.

[0047] The optical window 7 is made of transparent glass, which does not affect the passage of light, but can block oil fume particles from entering the optical detection device. The optical window 7 is external, and users can clean the oil stains on the optical window themselves, and it is a place that users can observe.

[0048] In one embodiment, the control panel 6 is a PCB board.

[0049] In one embodiment, the light-emitting diode 2 is packaged in a through-hole package; the photodetector 4 is packaged in an SMT (Surface Mount Technology) package.

[0050] Both LED 2 and photodetector are connected to the PCB board by soldering. LED 2 requires high installation accuracy, so it is packaged as a through-hole component. Photodetector 4 is packaged as an SMT component.

[0051] In this embodiment, two detectors are provided. The area covered by the detection light emitted by the emitting component of the left detector is the left optical emitting area 22, which faces the left side of the air inlet. The area that the heat dissipation detection light can be received by the receiving component of the left detector is the left optical receiving area 222. The overlapping area of ​​the left optical emitting area 22 and the left optical receiving area 222 is the left fume detection area 2222 of the left detector. When fumes enter the range hood through the left side of the air inlet, they will pass through the left fume detection area 2222. The detection light signal scattered by the fume particles in this area is received by the fume monitoring device, thereby realizing... The left stove's oil fume is detected; the area covered by the detection light emitted by the emitting component of the right detector is the right optical emitting area 33, which faces the right side of the air inlet. The area that the heat dissipation detection light can be received by the receiving component of the right detector is the right optical receiving area 333. The overlapping area of ​​the right optical emitting area 33 and the right optical receiving area 333 is the right oil fume detection area 3333 of the right detector. When oil fumes enter the range hood through the right side of the air inlet, they will pass through the right oil fume detection area 3333. The detection light signal scattered by the oil fume particles in this area is received by the oil fume monitoring device, thereby realizing the detection of oil fumes on the right stove.

[0052] Example 2

[0053] like Figure 3 As shown, this embodiment also provides a kitchen appliance, including a kitchen appliance body 8 and the oil fume monitoring device in Embodiment 1. The kitchen appliance body 8 has an air inlet.

[0054] Kitchen equipment includes, but is not limited to, range hoods, integrated cooktops, and other kitchen appliances with fume extraction functions.

[0055] The kitchen equipment body includes the kitchen equipment shell. The main shell 1 is installed at the center of the air inlet, which makes it easy to accurately distinguish the smoke concentration of the left and right oil stoves. It can detect the oil fumes entering the air inlet of the range hood, and thus accurately adjust the air intake and suction capacity of the kitchen equipment.

[0056] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A fume monitoring device, characterized in that: include: At least two detectors are provided, each of which is used to detect the concentration of smoke particles in the air inlet of the kitchen equipment and the corresponding suction area of ​​each stove position. The projection of each suction area on the horizontal plane can cover the corresponding stove position.

2. The oil fume monitoring device according to claim 1, characterized in that: It also includes a main housing, which is detachably connected to the outer wall of the kitchen appliance and has a closed cavity, in which each detector is disposed.

3. The oil fume monitoring device according to claim 2, characterized in that: Two detectors are provided, which are used to detect the concentration of smoke particles in the left and right air intake areas of the air inlet of the kitchen equipment, respectively. The two detectors are symmetrically arranged about a center line, and the left and right air intake areas of the air inlet are symmetrically arranged about the axis of symmetry. The center line is collinear with the axis of symmetry.

4. The oil fume monitoring device according to claim 3, characterized in that: A control panel is provided inside the main housing. Each detector includes a transmitting component and a receiving component. Each transmitting component and each receiving component are signal-connected to the control panel. Each transmitting component is used to emit detection light, which can pass through the main housing. The two receiving components can respectively receive the detection light scattered by the oil fume particles.

5. The oil fume monitoring device according to claim 4, characterized in that: One of the transmitting components is capable of emitting detection light covering at least a portion of the left air intake area, and the other transmitting component is capable of emitting detection light covering at least a portion of the right air intake area.

6. The oil fume monitoring device according to claim 4, characterized in that: The emitting component includes a light-emitting tube and an emitting lens. Both the light-emitting tube and the emitting lens are fixedly connected to the control panel. The light-emitting tube can emit detection light to the emitting lens, and the emitting lens can receive the detection light and diffuse it.

7. The oil fume monitoring device according to claim 4, characterized in that: The receiving component includes a photoelectric receiving tube and a receiving lens. Both the photoelectric receiving tube and the receiving lens are fixedly connected to the control panel. The receiving lens can focus the detection light scattered by the oil fume particles onto the photoelectric receiving tube, and the photoelectric receiving tube can receive the detection light scattered by the oil fume particles.

8. The oil fume monitoring device according to claim 4, characterized in that: It also includes two optical windows, which are symmetrically arranged on the main housing about the center line. The optical windows are used to block oil fume particles from entering the main housing and allow light to pass through. Each detector is provided with one optical window. The detection light emitted by the emitting component of each detector and the detection light scattered by the oil fume particles received by the receiving component can both pass through the optical windows.

9. The oil fume monitoring device according to claim 8, characterized in that: Each of the emitting components emits detection light obliquely upwards, and the distance between the coverage areas of the detection light emitted by the two sets of emitting components gradually increases from bottom to top; the two optical windows are arranged at an angle, and the distance between the two optical windows gradually decreases from bottom to top.

10. A kitchen appliance, characterized in that: include: A kitchen appliance body, wherein the kitchen appliance body has the air inlet; And the oil fume monitoring device according to any one of claims 1-9.

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