Range hood

Abstract

The utility model relates to a range hood, which comprises an oil fume suction device, a control system and a control system, and is characterized in that the oil fume suction device is arranged indoors and is used for sucking and discharging oil fume, and a state reminding device electrically connected with the control system of the range hood is arranged on the oil fume suction device; the outdoor main machine device is arranged outdoors and comprises a purification box device and a fan device which are sequentially arranged in the smoke flowing direction, the purification box device comprises a purification box body and a filtering assembly which is arranged in the purification box body and used for filtering oil smoke, and the purification box body is in fluid communication with the oil smoke suction device; the oil cup is arranged at the bottom of the purification box body and is used for containing oil dripping from the purification box body; the oil quantity recognition device is used for recognizing the oil quantity in the oil cup, is electrically connected with a control system of the range hood, and at least can transmit an oil quantity signal to the control system when the oil quantity in the oil cup exceeds a set value; and the state reminding device is controlled by the control system to send a signal for reminding a user to pour the oil cup. The oil collecting device has the advantages that oil generated in the filtering process of the outdoor main machine device can be collected, and a user is reminded in time when the amount of the collected oil exceeds a set value.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. With the improvement of people's living standards, multi-level intelligent range hoods are relatively popular. For example, the invention patent application with application publication number CN202010923493.1 discloses a multi-connected range hood and its control method. The multi-connected range hood includes: an outdoor range hood main unit, multiple indoor terminal units, a main air duct, multiple branch air ducts, and a detection module. After obtaining the information that at least one indoor terminal unit in the kitchen is in working condition, the main control box can control the fan to start exhaust at a preset initial speed. The fumes in the kitchen are drawn into the indoor terminal unit and merged into the main air duct through the branch air duct, and then discharged into the atmosphere after being processed by the outdoor range hood main unit.

[0003] However, the above-mentioned multi-stage intelligent range hood still has certain shortcomings. The outdoor host of the multi-stage intelligent range hood is placed outdoors. The outdoor host usually includes a purification box for filtering oil smoke. A filter is set in the purification box. The filter is generally replaced regularly or when the filtering efficiency of the filter is reduced. However, the prior art often ignores that the filter is filled with oil after long-term use, which will drip under the action of gravity and accumulate inside the outdoor unit. Although the filter filters the oil, due to the lack of a collection device, if there are gaps between the structural parts, this part of the oil will flow out through the gaps and pollute the rooftop installation environment. If there are no gaps, it will be stored for a long time and a large amount of oil will gather inside, posing a safety hazard.

[0004] Therefore, existing range hoods need further improvement. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a range hood which can collect oil generated during the filtering process of an outdoor host device and promptly remind the user when the amount of collected oil exceeds a set value in view of the current status of the prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a range hood, comprising:

[0007] The range hood suction device is installed indoors and is used to suck and exhaust the range hood, and is provided with a status reminder device electrically connected to the range hood control system;

[0008] An outdoor host device is arranged outdoors, and includes a purification box device and a fan device arranged in sequence along the flow direction of the smoke, wherein the purification box device includes a purification box body and a filter assembly arranged in the purification box body for filtering the oil smoke, and the purification box body is in fluid communication with the oil smoke suction device;

[0009] An oil cup, disposed at the bottom of the purification box, for collecting the oil dripping from the purification box;

[0010] The oil quantity identification device is used to identify the oil quantity in the oil cup. The oil quantity identification device is electrically connected to the control system of the range hood and can at least transmit an oil quantity signal to the control system when the oil quantity in the oil cup exceeds a set value. The control system controls the status reminder device to send a signal to remind the user to dump the oil cup.

[0011] The status reminder device may be an alarm device in the prior art that can emit sound and / or light prompt signals. Preferably, in order to facilitate the user to more clearly identify the alarm signal, the status reminder device includes a display screen. When the amount of oil in the oil cup exceeds the set value, the control system controls the display screen to display a prompt message to remind the user to dump the oil cup. Of course, it is conceivable that the display screen can also always display the oil amount information of the oil cup (such as in the form of percentage). When the amount of oil in the oil cup exceeds the set value, a more eye-catching method (such as emitting an alarm sound or flashing an icon) is used to remind the user to dump the oil cup.

[0012] In order to allow the oil on the filter assembly to directly enter the oil cup after dripping and avoid long-term accumulation in the purification box, an oil leakage port is opened at the bottom of the purification box corresponding to the area below the filter assembly, and the top of the oil cup has an opening opposite to the oil leakage port.

[0013] In order to facilitate the removal of the oil cup, a preferred connection method between the oil cup and the purification box is: a support frame is provided at the bottom of the purification box, and the support frame has an installation channel for the oil cup to be installed into and pulled out from the side.

[0014] In order to facilitate the removal of the oil cup, the purification box has a horizontally extending smoke channel for the smoke to pass through, and the oil cup is generally strip-shaped and extends in a direction perpendicular to the smoke channel.

[0015] The oil amount identification device can use a capacitive liquid level meter in the prior art or identify the oil amount in the oil cup by detecting the weight change of the oil cup. Preferably, a first pressure sensor for identifying the weight change of the oil cup is provided at the area corresponding to the bottom of the oil cup in the installation channel.

[0016] In order to facilitate the removal of the oil cup, another preferred connection method between the oil cup and the purification box is: the oil cup is connected to the bottom of the purification box through a buckle assembly.

[0017] In order to simplify the installation structure of the oil cup and facilitate the detection of the oil amount in the oil cup, the bottom of the purification box has a fixed buckle for hanging the oil cup, the fixed buckle has a clamping opening open on the side, the top of the oil cup has a hanging flange that is bent and extended and can be inserted into the clamping opening, and a second pressure sensor for identifying weight changes of the oil cup is provided in the clamping opening of the fixed buckle corresponding to the area under the hanging flange.

[0018] In order to facilitate users to remove the oil cups from the left and right sides of the purification box, the purification box has a horizontally extending smoke channel for smoke to pass through, and along the extension direction of the smoke channel, the oil cups are provided on the left and right sides of the bottom of the purification box.

[0019] In order to improve the purification effect, the purification box has a horizontally extending smoke channel, and the filter assembly includes a first filter screen and a second filter screen which are sequentially arranged at intervals along the smoke channel.

[0020] Compared with the prior art, the advantages of the utility model are as follows: an oil cup for collecting oil generated during the filtering process is arranged at the bottom of the purification box of the outdoor host device; when the amount of oil in the oil cup exceeds the set value, the oil amount identification device can identify this and transmit the oil amount signal to the control system; the control system controls the status reminder device on the indoor fume extraction device to send a signal to remind the user to dump the oil cup; thereby, the user can dump the oil cup in time, avoiding the accumulation of oil in the outdoor unit, polluting the outdoor unit, and extending the life of the outdoor host. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the range hood according to Embodiment 1 of the present utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of an outdoor host device according to Embodiment 1 of the present utility model;

[0023] Figure 3 It is a cutaway perspective view of an outdoor host device according to Embodiment 1 of the present utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the outdoor host device of Example 1 of the utility model (the oil cup is removed from the support frame);

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the outdoor main unit of the range hood according to the second embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the outdoor main unit of the range hood according to Embodiment 2 of the utility model (the oil cup is in a separated state);

[0027] Figure 7 It is a sectional perspective view of an outdoor host device of a range hood according to Embodiment 2 of the present utility model;

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the oil cup of the outdoor host device of Example 2 of the utility model. DETAILED DESCRIPTION

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0031] Figure 1-Figure 4 A preferred embodiment of the range hood of the utility model is shown. The range hood comprises a range hood device 1 and an outdoor host device, wherein the range hood device 1 is arranged indoors and generally comprises a smoke collecting hood for taking in and collecting smoke. The smoke collecting hood is provided with a status reminder device electrically connected to the control system of the range hood. The status reminder device of this embodiment is a display screen 10, which can remind the user of the status of the range hood (including the status of the oil amount in the oil cup 4) by emitting an alarm sound or flashing an icon.

[0032] The outdoor host device is generally arranged outdoors, and includes a purification box device and a fan device 5 arranged in sequence along the direction of smoke flow. The purification box device includes a purification box body 2 and a filter assembly 30 arranged in the purification box body 2 for filtering oil smoke. The purification box body 2 has a horizontally extending smoke channel 20, and the filter assembly 30 includes a first filter screen 31 and a second filter screen 32 arranged in sequence along the smoke channel 20. The first filter screen 31 and the second filter screen 32 are both arranged vertically, and their bottoms are supported by a bracket. During the oil smoke filtering process, the oil and dirt filtered by the filter screen flows downward under the action of gravity and gathers on the bottom wall of the purification box body 2. An oil leakage port 21 is opened on the bottom wall of the purification box body 2 corresponding to the area below the filter assembly 30. The bottom of the purification box body 2 is also provided with an oil cup 4 that can be detached relative to the purification box body 2, and the top of the oil cup 4 has an opening opposite to the oil leakage port 21, because it receives the oil dripping from the oil leakage port 21 of the purification box body 2. A smoke inlet box 53 is provided at the smoke inlet side of the purification box 2, and the smoke inlet box 53 can be connected to the indoor oil fume suction device 1 through a smoke pipe.

[0033] A support frame 22 is provided at the bottom of the purification box 2. The support frame 22 has a mounting channel 220 for the oil cup 4 to be installed therein from the side and can be pulled out therefrom. The extending direction of the mounting channel 220 is perpendicular to the extending direction of the smoke channel 20 of the purification box 2. The oil cup 4 of this embodiment is in a strip shape as a whole and is also extended in a direction perpendicular to the smoke channel 20.

[0034] The oil quantity identification device of the present embodiment is used to identify the oil quantity in the oil cup 4. Specifically, the oil quantity identification device adopts a first pressure sensor 61, which is arranged in the installation channel 220 of the support frame 22 at a position corresponding to the area at the bottom of the oil cup 4, and identifies the change of the oil quantity in the oil cup 4 by detecting the weight of the oil cup 4. The first pressure sensor 61 of the present embodiment is electrically connected to the control system of the range hood. When the oil quantity in the oil cup 4 exceeds the set value, the first pressure sensor 61 transmits the oil quantity signal to the control system, and the control system controls the status reminder device located on the indoor range hood 1 to send a signal to remind the user to dump the oil cup 4. Specifically, when the oil quantity in the oil cup 4 exceeds the set value, the control system controls the display screen 10 to display a prompt message to remind the user to dump the oil cup 4. Of course, it is conceivable that the display screen 10 can also always display the oil amount information of the oil cup 4 (such as in the form of a percentage). When the oil amount in the oil cup 4 exceeds the set value, a more eye-catching method (such as sounding an alarm or flashing an icon) is used to remind the user to dump the oil cup 4.

[0035] The fan device 5 includes a fan housing 50 and a centrifugal fan 51 disposed in the fan housing 50. The centrifugal fan 51 provides negative pressure for sucking and exhausting oil smoke. The side of the fan housing 50 is directly connected to the outlet side of the purification housing 2. A smoke exhaust housing 52 is also disposed on the top of the fan housing 50, and the top of the smoke exhaust housing 52 is a smoke outlet.

[0036] An oil cup 4 for collecting oil generated during the filtering process is provided at the bottom of the purification box 2 of the outdoor host device. When the amount of oil in the oil cup 4 exceeds the set value, the oil amount identification device can identify this and transmit the oil amount signal to the control system. The control system controls the status reminder device on the indoor fume extraction device 1 to send a signal to remind the user to dump the oil cup 4. As a result, the user can dump the oil cup 4 in time to avoid the accumulation of oil in the outdoor unit, polluting the outdoor unit, and extending the life of the outdoor host.

[0037] Example 2

[0038] Figure 5-Figure 8 Another preferred embodiment of the range hood of the utility model is shown. The difference between this embodiment and embodiment 1 is that the detachable connection structure between the oil cup 4 and the purification box 2 is different. The oil cup 4 in this embodiment is connected to the bottom of the purification box 2 through a buckle assembly. Specifically, there are two oil cups 4 in this embodiment. Along the extension direction of the smoke channel 20, the two oil cups 4 are respectively arranged on the left and right sides of the bottom of the purification box 2. The oil cup 4 is also strip-shaped as a whole and is arranged along the extension direction of the smoke channel 20 of the purification box 2. The bottom of the purification box 2 has two fixed buckles 23 for hanging the oil cup 4, which are arranged at intervals. The fixed buckle 23 has a clamping opening 230 opened at the side. Correspondingly, the two ends of the oil cup 4 in the length direction have a hanging flange 41 bent and extended toward the inside of the oil cup 4 at the top opening. The hanging flange 41 on the oil cup 4 and the fixed buckle 23 together constitute the above-mentioned buckle assembly. When installing the oil cup 4, the two hanging flanges 41 of the oil cup 4 can be correspondingly inserted into the clamping openings 230 in the two fixed buckles 23. A second pressure sensor 62 is provided in the clamping opening 230 of the fixed buckle 23. After the oil cup 4 is installed in place, the second pressure sensor 62 is correspondingly located under the hanging flange 41 of the oil cup 4. When the amount of oil in the oil cup 4 changes, the second pressure sensor 62 can identify this. The second pressure sensor 62 of this embodiment is electrically connected to the control system of the range hood. When the amount of oil in the oil cup 4 exceeds the set value, the second pressure sensor 62 transmits the oil amount signal to the control system, and the control system controls the status reminder device located on the indoor range hood 1 to send a signal to remind the user to dump the oil cup 4.

[0039] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide member, hole, groove, etc., or a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A range hood, comprising: A range hood suction device (1) is installed indoors and is used to suck and exhaust range hood fumes. A status reminder device is provided on the range hood and is electrically connected to a control system of the range hood. An outdoor host device is arranged outdoors, comprising a purification box device and a fan device (5) arranged in sequence along the flow direction of smoke, the purification box device comprising a purification box body (2) and a filter assembly (30) arranged in the purification box body (2) for filtering oil smoke, the purification box body (2) being in fluid communication with the oil smoke suction device (1); The invention is characterized in that it also includes: An oil cup (4) is arranged at the bottom of the purification box (2) and is used to receive the oil dripping from the purification box (2); An oil quantity identification device is used to identify the oil quantity in the oil cup (4), the oil quantity identification device is electrically connected to the control system of the range hood, and can at least transmit an oil quantity signal to the control system when the oil quantity in the oil cup (4) exceeds a set value, and the control system controls the status reminder device to send a signal to remind the user to dump the oil cup (4).

2. The range hood according to claim 1, characterized in that: The status reminder device comprises a display screen (10), and when the amount of oil in the oil cup (4) exceeds a set value, a control system controls the display screen (10) to display a reminder message reminding a user to dump the oil cup (4).

3. The range hood according to claim 1, characterized in that: An oil leakage port (21) is provided at the bottom of the purification box (2) corresponding to the area below the filter assembly (30), and the top of the oil cup (4) has an opening opposite to the oil leakage port (21).

4. The range hood according to any one of claims 1 to 3, characterized in that: A support frame (22) is provided at the bottom of the purification box (2), and the support frame (22) has an installation channel (220) for the oil cup (4) to be installed therein from the side and to be pulled out therefrom.

5. The range hood according to claim 4, characterized in that: The purification box (2) has a smoke passage (20) extending horizontally for smoke to pass through, and the oil cup (4) is in a strip shape as a whole and is arranged to extend in a direction perpendicular to the smoke passage (20).

6. The range hood according to claim 4, characterized in that: The installation channel (220) is provided with a first pressure sensor (61) for identifying weight changes of the oil cup (4) at a location corresponding to an area at the bottom of the oil cup (4).

7. The range hood according to any one of claims 1 to 3, characterized in that: The oil cup (4) is connected to the bottom of the purification box (2) via a snap assembly.

8. The range hood according to claim 7, characterized in that: The bottom of the purification box (2) has a fixing buckle (23) for hanging the oil cup (4), the fixing buckle (23) has a clamping opening (230) open at the side, the top of the oil cup (4) has a hanging flange (41) that is bent and extended and can be inserted into the clamping opening (230), and a second pressure sensor (62) for identifying weight changes of the oil cup (4) is provided in the clamping opening (230) of the fixing buckle (23) corresponding to the area below the hanging flange (41).

9. The range hood according to claim 7, characterized in that: The purification box (2) has a horizontally extending smoke channel (20) for smoke to pass through, and along the extending direction of the smoke channel (20), the oil cups (4) are provided on both the left and right sides of the bottom of the purification box (2).

10. The range hood according to claim 1, characterized in that: The purification box (2) has a horizontally extending smoke channel (20), and the filter assembly (30) comprises a first filter screen (31) and a second filter screen (32) which are sequentially arranged at intervals along the smoke channel (20).

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