Ceiling range hood system and decentralized fume suction method

Abstract

The present application relates to the field of kitchen utensils, and discloses a ceiling range hood system and a decentralized oil fume suction method, which comprises a top plate, a fan assembly and an air inlet channel mounted on the top plate; a plurality of air inlet holes are arranged on the top plate, the air inlet channel is arranged above the top plate, the air inlet of the air inlet channel is arranged on the air inlet hole, and the air outlet of the air inlet channel is communicated with the fan assembly; the ceiling range hood system further comprises a plurality of detection units, a valve assembly and a control unit; the detection unit is arranged corresponding to each air inlet hole and is used for detecting the air quality near the air inlet hole; the valve assembly is used for opening and closing the communication between the air inlet channel and the fan assembly; and the control unit controls the opening and closing of the valve assembly according to the detection result of the detection unit. The ceiling range hood system can discharge the escaped oil fume from the current space by opening the valve assembly and using the air inlet holes arranged on the top plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of kitchen appliances, in particular to a ceiling-mounted range hood system and a decentralized oil fume suction method. BACKGROUND

[0002] Oil fume pollutants are generated during the cooking process in the kitchen, most of which can be discharged by using a range hood, but a small part will float in the kitchen.

[0003] Although increasing the exhaust capacity of the range hood can further control the escape of oil fume pollutants, it generates a lot of noise (aerodynamic noise and vibration).

[0004] The negative pressure of the range hood can only control the oil fume within a certain range of its inlet. Once the rising speed of the oil fume during the cooking process exceeds the control range, the oil fume pollutants will escape from the control and remain in the kitchen. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the defect that the oil fume escaping from the suction range of the range hood in the prior art cannot be discharged, and to provide a ceiling-mounted range hood system and a decentralized oil fume suction method.

[0006] The present application solves the above technical problems by the following technical solutions:

[0007] A ceiling-mounted range hood system, comprising: a top plate, a fan assembly mounted on the top plate, and an air inlet channel;

[0008] A plurality of air inlet holes are provided on the top plate, the air inlet channel is arranged above the top plate, the air inlet of the air inlet channel is arranged at the air inlet hole, and the air outlet of the air inlet channel is communicated with the fan assembly;

[0009] The ceiling-mounted range hood system further comprises a plurality of detection units, a valve assembly and a control unit;

[0010] The detection unit is arranged corresponding to each air inlet hole and is used for detecting the air quality near the air inlet hole;

[0011] The valve assembly is used for opening and closing the communication between the air inlet channel and the fan assembly;

[0012] The control unit controls the opening and closing of the valve assembly according to the detection result of the detection unit.

[0013] In this scheme, the ceiling-mounted range hood system detects the air quality near the air inlet hole by opening the air inlet hole on the top plate, judges whether there is escaped oil fume, and when escaped oil fume is detected, the valve assembly is opened to discharge the escaped oil fume from the current space through the air inlet hole opened on the top plate.

[0014] Preferably, the detection unit is arranged at a corner of the air inlet hole and the end of the detection unit is flush with the air inlet hole.

[0015] In this solution, the detection unit is arranged at a corner of the air inlet hole and flush with the air inlet hole, which can minimize the impact on the appearance of the damaged ceiling. When the air inlet hole is blocked by a baffle, the detection unit can also minimize the impact on the opening and closing of the baffle.

[0016] Preferably, the ceiling-mounted range hood system further comprises a plurality of baffles arranged at the air inlet holes and used to open and close the air inlet holes.

[0017] When the detection unit detects that the oil fume concentration is higher than a predetermined threshold, the control unit controls the valve assembly to open and controls the baffle corresponding to the air inlet hole corresponding to the detection unit to open.

[0018] In this solution, by only opening the air inlet hole that detects nearby oil fume, the escaped oil fume can be discharged in a targeted manner, and the oil fume is not easy to move due to simultaneous suction of multiple air inlet holes, causing secondary pollution of the ceiling.

[0019] Preferably, the baffle is translated relative to the air inlet hole by an electric push rod to open and close the air inlet hole.

[0020] The control unit is electrically connected to the electric push rod.

[0021] In this solution, the baffle can be conveniently controlled and pushed by the electric push rod.

[0022] Preferably, the fan assembly comprises a fan and an air exchange connector arranged above the fan.

[0023] The air exchange connector comprises an air exchange chamber and a plurality of air exchange sub-ports communicated with the air exchange chamber, the air exchange chamber is communicated with the fan, and each air exchange sub-port is connected with one air inlet channel.

[0024] The valve assembly is arranged between the air exchange connector and the fan.

[0025] In this solution, the component for sucking escaped oil fume is arranged above the fan, which is separated from the main air inlet of the fan assembly arranged below the fan, so as to avoid affecting the normal suction function of the fan assembly during suction.

[0026] Preferably, a plurality of air inlet holes are uniformly distributed on the ceiling.

[0027] In this solution, by uniformly arranging the air inlet holes, it can be ensured that the escaped oil fume floating near the ceiling can be sucked away.

[0028] Preferably, the valve assembly comprises a mounting plate, an opening-closing plate and a driving device;

[0029] The mounting plate is arranged on the passage between the air exchange joint and the fan, and a ventilation opening is arranged on the mounting plate, and the driving device is used to drive the opening-closing plate to slide relative to the mounting plate to open and close the ventilation opening.

[0030] The control unit is electrically connected to the driving device.

[0031] Preferably, the driving device comprises a gear and a rack, the rack is arranged on the opening-closing plate, the gear is fixed relative to the mounting plate, and a guide rail is further arranged on the mounting plate, and the opening-closing plate slides along the guide rail.

[0032] In this scheme, since the suction degree of the fan assembly is extremely large, and the transmission structure of the gear and the rack is relatively stable and forms a large driving force, the opening-closing plate is conveniently driven.

[0033] Preferably, a sealing strip is arranged around the ventilation opening.

[0034] In this scheme, by arranging the sealing strip, the ventilation opening can be sealed, when the oil fume is not needed to be sucked, the normal oil suction of the fan assembly is avoided to be interfered, at the same time, the gap of the ventilation opening is avoided to be left, so that the vibration and noise in the fan assembly are avoided to occur.

[0035] Preferably, the air exchange joint comprises a disc-shaped protruding part, the air exchange chamber is formed in the protruding part, and the air exchange branch is formed on the outer peripheral surface of the protruding part.

[0036] A decentralized oil fume suction method uses the ceiling range hood system as described above;

[0037] The ceiling range hood system further comprises a plurality of baffles, the baffles are arranged on the air inlet holes and are used to open and close the air inlet holes.

[0038] The decentralized oil fume suction method comprises the following steps:

[0039] When the fan assembly is not started, the baffles close the air inlet holes.

[0040] When the fan assembly is started,

[0041] When the detection unit detects that the oil fume concentration is higher than a predetermined threshold, the control unit controls the valve assembly to open and controls the baffles corresponding to the air inlet holes of the detection unit to open, and the remaining baffles remain closed.

[0042] In the scheme, by only opening the air inlet hole where the oil fume is detected nearby, the escaped oil fume can be discharged targetedly, and the oil fume is not easy to move due to the suction of multiple air inlet holes at the same time, causing secondary pollution of the ceiling.

[0043] The positive progress effect of the present application is that the ceiling range hood system detects the air quality near the air inlet hole by opening the air inlet hole on the ceiling, judges whether there is escaped oil fume, and when the escaped oil fume is detected, the valve assembly is opened to discharge the escaped oil fume from the current space by using the air inlet hole opened on the ceiling. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 It is a perspective structural schematic diagram of the ceiling range hood system according to an embodiment of the present application.

[0045] Figure 2 It is a front view structural schematic diagram of the ceiling range hood system according to an embodiment of the present application.

[0046] Figure 3 It is a perspective structural schematic diagram of the ceiling range hood system according to an embodiment of the present application.

[0047] Figure 4 It is a structural schematic diagram of the air inlet hole according to an embodiment of the present application.

[0048] Figure 5 It is a structural schematic diagram of the fan assembly according to an embodiment of the present application.

[0049] Figure 6 It is a structural schematic diagram of the fan assembly according to an embodiment of the present application.

[0050] Figure 7 It is a perspective structural schematic diagram of the ventilation joint according to an embodiment of the present application.

[0051] Figure 8 It is a perspective structural schematic diagram of the valve assembly according to an embodiment of the present application.

[0052] Figure 9 It is a module schematic diagram of the ceiling range hood system according to an embodiment of the present application.

[0053] BRIEF DESCRIPTION OF DRAWINGS

[0054] The use space 100

[0055] The ceiling 101

[0056] The ceiling range hood system 200

[0057] The ceiling 210

[0058] Inlet 211

[0059] Baffle 212

[0060] Detection unit 213

[0061] Electric push rod 214

[0062] Fan assembly 220

[0063] Fan 221

[0064] Main air inlet 222

[0065] Exhaust passage 223

[0066] Air inlet passage 230

[0067] Air exchange joint 240

[0068] Air exchange chamber 241

[0069] Air exchange sub-inlet 242

[0070] Valve assembly 250

[0071] Mounting plate 251

[0072] Vent 252

[0073] Open-close plate 253

[0074] Drive device 254

[0075] Gear 2541

[0076] Rack 2542

[0077] Guide rail 256

[0078] Sealing strip 257

[0079] Control unit 260

[0080] First support 271

[0081] Second support 272

[0082] Connecting column 273 DETAILED DESCRIPTION

[0083] The present application will be further described below by way of examples with reference to the accompanying drawings, but the present application is not limited to the examples.

[0084] Figure 1 Fig. 1 is a perspective view of a ceiling range hood system 200 according to an embodiment of the present application. For the sake of clarity, the components of the ceiling range hood system 200 are not shown in Fig. 1. Figure 1The illustration shows a ceiling-mounted range hood system 200 installed in a usable space 100, such as a kitchen. Generally, the usable space 100 is a kitchen, but the invention is not limited to this; the usable space 100 can also be other spaces or rooms with smoke extraction requirements.

[0085] like Figures 1-2 As shown, the ceiling-mounted range hood system 200 includes: a ceiling plate 210, a fan 221 assembly 220 installed on the ceiling plate 210, and an air inlet duct 230.

[0086] The fan assembly 220 includes an internal fan 221 and a main air inlet 222 located below. A gas stove or similar appliance is typically installed below the main air inlet 222, and the main fumes generated are discharged to the outside of the working space 100 through the main air inlet 222. An exhaust duct 223 is provided next to the fan 221, and the fumes are drawn in by the fan 221 and discharged to the outside through the exhaust duct 223.

[0087] There is a gap between the top plate 210 and the ceiling 101 of the usable space 100. The part of the fan 221 assembly 220 that mounts the fan 221 is placed in this gap, which can appropriately reduce the noise generated by the fan 221.

[0088] The top plate 210 is provided with multiple air inlets 211, and the air inlet channel 230 is provided above the top plate 210. The air inlet of the air inlet channel 230 is provided at the air inlet 211, and the air outlet of the air inlet channel 230 is connected to the fan 221 assembly 220. The ceiling-mounted range hood system 200 also includes multiple detection units 213, valve assemblies 250 and control units 260. The detection units 213 are provided for each air inlet 211 and are used to detect the air quality near the air inlet 211. The valve assembly 250 is used to open and close the connection between the air inlet channel 230 and the fan 221 assembly 220. The control unit 260 controls the opening and closing of the valve assembly 250 according to the detection results of the detection units 213.

[0089] The ceiling-mounted range hood system 200 detects the air quality near the air inlet 211 by opening an air inlet 211 on the ceiling plate 210, and determines whether there is any escaping fumes. When escaping fumes are detected, the valve assembly 250 can be opened to discharge the escaping fumes into the current space through the air inlet 211 on the ceiling plate 210.

[0090] like Figure 3 As shown, multiple air inlets 211 are evenly distributed on the top plate 210. By evenly arranging the air inlets 211, it can be ensured that all escaping fumes that drift to the vicinity of the top plate 210 can be sucked away.

[0091] exist Figure 3In the embodiment, the plurality of air inlets 211 are diffusely distributed from the center of the top plate 210 towards the edges.

[0092] Of course, the skilled in the art can also set the air inlets 211 relatively densely at several points where the escaped oil fume is easy to gather, and set the air inlets 211 relatively sparsely at points where the escaped oil fume is not easy to gather, according to the needs.

[0093] In the embodiment, the air inlet passage 230 is in the form of a hose, and only one air inlet passage 230 is shown in the figure. However, in actual applications, each air inlet 211 is connected to an air inlet passage 230.

[0094] As shown in Figure 4 the air inlet of the air inlet passage 230 is in the form of a horn, and is directly opposite the air inlet 211. The air inlet is located above the air inlet 211 and has a certain gap with the baffle 212 in the vertical direction, so as to avoid interfering with the movement of the baffle 212.

[0095] In the embodiment, taking the use space 100 as a kitchen as an example, the detection unit 213 is a probe for detecting the concentration of oil fume. The probe is inserted in the top plate 210 near the air inlet 211, and penetrates downward through the top plate 210, so as to detect the concentration of oil fume near the air inlet 211 corresponding to the probe below the top plate 210 when the air inlet 211 is closed.

[0096] In other embodiments, the detection unit 213 can be arranged at a corner of the air inlet 211, and the end of the detection unit 213 is flush with the air inlet 211.

[0097] Arranging the detection unit 213 at a corner of the air inlet 211 and flush with the air inlet 211 can minimize the impact on the appearance of the top plate 210. When the air inlet 211 is blocked by the baffle 212, the detection unit 213 can also minimize the impact on the opening and closing of the baffle 212. The baffle 212 can have a notch corresponding to the position of the detection unit 213.

[0098] The ceiling-mounted oil fume extractor system 200 further comprises a plurality of baffles 212 arranged at the air inlets 211 and used to open and close the air inlets 211.

[0099] When the detection unit 213 detects that the concentration of oil fume is higher than a predetermined threshold, the control unit 260 controls the valve assembly 250 to open, and controls the baffle 212 corresponding to the air inlet 211 of the detection unit 213 to open.

[0100] By opening only the air inlets 211 where the oil fume is detected nearby, the escaped oil fume can be discharged in a targeted manner, and the oil fume is not easy to move due to the simultaneous suction of multiple air inlets 211, thereby avoiding secondary pollution of the top plate 210.

[0101] As shown in Figure 4 The baffle 212 is translated relative to the air inlet hole 211 by the electric push rod 214 to open and close the air inlet hole 211; the control unit 260 is electrically connected to the electric push rod 214. The control unit 260 can be wired or wirelessly connected to the electric push rod 214.

[0102] The baffle 212 can be conveniently controlled and pushed by the electric push rod 214.

[0103] As shown in Figures 5-8 The fan 221 assembly 220 includes the fan 221 and the ventilation connector 240 arranged above the fan 221; the ventilation connector 240 includes the ventilation chamber 241 and a plurality of ventilation sub-openings 242 communicated with the ventilation chamber 241, the ventilation chamber 241 is communicated with the fan 221, and each ventilation sub-opening 242 is connected with an air inlet channel 230; the valve assembly 250 is arranged between the ventilation connector 240 and the fan 221.

[0104] The component for sucking escaped oil fume is arranged above the fan 221 and is separated from the main air inlet 222 of the fan 221 assembly 220 arranged below the fan 221, so as to avoid affecting the normal suction function of the fan 221 assembly 220 during suction.

[0105] The valve assembly 250 includes the mounting plate 251, the opening and closing plate 253 and the driving device 254; the mounting plate 251 is arranged on the passage between the ventilation connector 240 and the fan 221, the mounting plate 251 is provided with the ventilation opening 252, and the driving device 254 is used for driving the opening and closing plate 253 to slide relative to the mounting plate 251 to open and close the ventilation opening 252; the control unit 260 is electrically connected to the driving device 254.

[0106] The opening and closing plate 253 is provided with the guide rail 256 on both sides, the guide rail 256 is fixed to the mounting plate 251, and the guide rail 256 is used for guiding the opening and closing plate 253 to linearly slide along the guide rail 256 to open and close the ventilation opening 252.

[0107] The driving device 254 includes the gear 2541 and the rack 2542, the rack 2542 is arranged on the opening and closing plate 253, the gear 2541 is fixed relative to the mounting plate 251, and the mounting plate 251 is further provided with the guide rail 256, and the opening and closing plate 253 slides along the guide rail 256.

[0108] Since the suction degree of the fan 221 assembly 220 is extremely large, the transmission structure of the gear 2541 and the rack 2542 is relatively stable and forms a large driving force, so that the opening and closing plate 253 is conveniently driven.

[0109] Alternatively, other forms of driving device 254 can be rotated according to needs.

[0110] The periphery of the ventilation opening 252 is provided with a sealing strip 257. By providing the sealing strip 257, the ventilation opening 252 can be sealed, and when the oil fume is not needed to be sucked, the normal oil suction of the fan 221 assembly 220 is avoided from being interfered, at the same time, the ventilation opening 252 is avoided from leaving a gap, which causes the vibration and noise in the fan 221 assembly 220.

[0111] The air exchange joint 240 includes a disc-shaped protruding part, an air exchange chamber 241 is formed in the protruding part, and an air exchange branch 242 is formed on the outer peripheral surface of the protruding part.

[0112] As shown in Figure 5 , the top plate 210 is further provided with a first support 271 and a second support 272, the fan 221 is connected with the ceiling 101 through the first support 271 and the second support 272, the first support 271 is first fixedly connected with the ceiling 101, the second support 272 is fixedly connected with the fan 221, and finally the first support 271 is connected with the second support 272 through a connecting column 273. The connecting column 273 is provided with a connecting spring, so as to keep a certain damping and to finely adjust the sagging position, thereby simplifying the centering requirement during installation. When the fan 221 works, the spring can absorb a certain vibration capacity, so that the vibration transmitted to the ceiling 101 and the wall is greatly reduced.

[0113] As shown in Figure 9 , the control unit 260 is electrically connected with the electric push rod 214 for driving the baffle 212 to slide, the detection unit 213 for detecting the air quality near the ventilation hole, and the driving device 254 for driving the opening and closing plate 253 to slide.

[0114] The embodiment also provides a decentralized oil fume suction method, which uses the suspended ceiling oil fume extractor system 200.

[0115] The decentralized oil fume suction method includes the following steps:

[0116] When the fan 221 assembly 220 is not started, the baffle 212 closes the air inlet hole 211, so as to ensure the integrity of the top plate 210 in the normal state;

[0117] When the fan 221 assembly 220 is started, at this time, the indoor oil fume is generated due to cooking and other operations, the oil fume extractor is started, the main air inlet 222 starts to suck the oil fume, the detection unit 213 also starts to detect, and the detection result is sent to the control unit 260,

[0118] When the detection unit 213 detects that the oil fume concentration is higher than the predetermined threshold, the control unit 260 controls the valve assembly 250 to open and controls the shutter 212 corresponding to the air inlet hole 211 corresponding to the detection unit 213 to open, and the remaining shutters 212 remain closed. At this time, the plurality of detection units 213 can be classified, the detection unit 213 detecting that the oil fume concentration is higher than the predetermined threshold is classified as an A unit, and the detection unit 213 detecting that the oil fume concentration is not higher than the predetermined threshold is classified as a B unit. The shutter 212 corresponding to the B unit remains closed, and the shutter 212 corresponding to the A unit is opened. The detection unit 213 arranged beside each air inlet hole is in a one-to-one correspondence with the shutter 212 covered by the air inlet hole.

[0119] By opening only the air inlet hole 211 detecting the nearby oil fume, the escaped oil fume can be discharged targetedly, and the oil fume is not easy to move due to the suction of multiple air inlet holes 211 at the same time, causing secondary pollution of the top plate 210.

[0120] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship of the device or element in the normal use, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation at any time, and therefore cannot be understood as a limitation on the present application in this respect.

[0121] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and such changes and modifications fall within the protection scope of the present application.

Claims

1. A ceiling extractor hood system, characterized in that It comprises: a top plate, a fan assembly mounted on the top plate, and an air inlet channel; a plurality of air inlet holes are arranged on the top plate, the air inlet channel is arranged above the top plate, the air inlet of the air inlet channel is arranged on the air inlet hole, and the air outlet of the air inlet channel is communicated with the fan assembly; The ceiling range hood system further comprises a plurality of detection units, a valve assembly and a control unit; The detection unit is arranged corresponding to each air inlet hole for detecting the air quality near the air inlet hole; The valve assembly is used to open and close the communication between the air inlet channel and the fan assembly; The control unit controls the opening and closing of the valve assembly according to the detection result of the detection unit; The ceiling range hood system further comprises a plurality of baffles, which are arranged on the air inlet hole and used to open and close the air inlet hole; When the detection unit detects that the oil fume concentration is higher than the predetermined threshold, the control unit controls the valve assembly to open and controls the baffle corresponding to the air inlet hole of the detection unit to open.

2. The ceiling range hood system of claim 1, wherein, The detection unit is arranged at a corner of the air inlet hole, and the end of the detection unit is flush with the air inlet hole.

3. The ceiling range hood system of claim 1, wherein, The baffle is translated relative to the air inlet hole by an electric push rod to open and close the air inlet hole; The control unit is electrically connected to the electric push rod.

4. The ceiling range hood system of claim 1, wherein, The fan assembly comprises a fan and an air exchange connector arranged above the fan; The air exchange connector comprises an air exchange chamber and a plurality of air exchange sub-ports communicated with the air exchange chamber, the air exchange chamber is communicated with the fan, and each air exchange sub-port is connected with one air inlet channel; The air exchange connector and the fan are provided with the valve assembly therebetween.

5. The ceiling range hood system of claim 1, wherein, The plurality of air inlet holes are uniformly distributed on the top plate.

6. The ceiling range hood system of claim 4, wherein, The valve assembly comprises a mounting plate, an opening and closing plate, and a driving device; The mounting plate is arranged on the passage between the air exchange connector and the fan, the mounting plate is provided with a ventilation port, and the driving device is used to drive the opening and closing plate to slide relative to the mounting plate to open and close the ventilation port; The control unit is electrically connected to the driving device.

7. The ceiling range hood system of claim 6, wherein, The driving device comprises a gear and a rack, the rack is arranged on the opening and closing plate, the gear is fixed relative to the mounting plate, the mounting plate is further provided with a guide rail, and the opening and closing plate slides along the guide rail; Preferably, the periphery of the ventilation port is provided with a sealing strip.

8. The ceiling range hood system of claim 4, wherein, The air exchange connector comprises a disc-shaped protruding portion, the air exchange chamber is formed in the protruding portion, and the outer peripheral surface of the protruding portion forms the air exchange sub-port.

9. A decentralized oil fume suction method, characterized by, The decentralized oil fume suction method uses the ceiling range hood system according to any one of claims 1-8; The ceiling range hood system further comprises a plurality of baffles, which are arranged on the air inlet hole and used to open and close the air inlet hole; The decentralized oil fume suction method comprises the following steps: When the fan assembly is not turned on, the baffle closes the air inlet hole; When the fan assembly is turned on, When the detection unit detects that the oil fume concentration is higher than the predetermined threshold, the control unit controls the valve assembly to open and controls the baffle corresponding to the air inlet hole of the detection unit to open, and the remaining baffles remain closed.

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