Range hood capable of preventing lampblack from escaping

Abstract

The utility model provides a range hood capable of preventing oil smoke from escaping, and relates to the technical field of kitchen appliances, the range hood capable of preventing oil smoke from escaping comprises an exhaust fume collecting hood, an air deflector and an air supply mechanism, the air deflector is rotatably connected with the exhaust fume collecting hood, the exhaust fume collecting hood is provided with an air inlet and an air outlet, and the air supply mechanism is arranged in the exhaust fume collecting hood. The air supply mechanism is communicated between the air inlet and the air outlet, and an air guide channel used for blowing non-lampblack air to the air guide plate to form an air curtain is formed between the air supply mechanism and the air inlet and the air outlet. The range hood provided by the utility model can effectively prevent oil smoke from escaping from the gap between the air deflector and the exhaust fume collecting hood.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field especially is concerned with a kind of range hood of oil fume escape prevention. BACKGROUND

[0002] At present, considering the structural safety of shielding plate movement mechanism and other factors, a gap is designed between the shielding plate and the whole machine box, and oil fume is easy to overflow from the gap. To solve this problem, a air supply mechanism is installed on the inner wall of the shielding plate, and the air outlet of the air supply mechanism is arranged towards the shell of the range hood. However, the above technical solution does not effectively solve the above problem, because the air source of the air supply mechanism is still the oil fume from the oil pot, and the oil fume blown by the air curtain may still escape from the gap between the range hood and the shielding plate. SUMMARY

[0003] The utility model aims at providing a kind of range hood of oil fume escape prevention, which can effectively prevent oil fume from escaping from the gap between the deflector and the smoke hood.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a kind of range hood of oil fume escape prevention, including smoke hood, deflector and air supply mechanism, the deflector is connected with the smoke hood rotation, the smoke hood has air inlet and air outlet, the air supply mechanism is arranged in the smoke hood, the air supply mechanism is connected between the air inlet and the air outlet and forms the air deflector channel for blowing non-oil fume to the deflector to form air curtain between the air inlet and the air outlet.

[0006] Further, the air inlet is opened in the top end of the smoke hood.

[0007] Further, it further includes the main machine assembly connected with the top end of the smoke hood, and the air inlet is located on the outside of the main machine assembly.

[0008] Further, the air inlet is connected with the air inlet end of the air supply mechanism by air inlet pipeline.

[0009] Further, the smoke hood has smoke suction port, and the height of the air outlet is higher than that of the smoke suction port.

[0010] Further, the air outlet is configured as multiple, and multiple air outlets are distributed along the horizontal direction from one end to the other end of the top of the smoke suction port.

[0011] Further, the opening direction of the air outlet is consistent with that of the smoke suction port.

[0012] Furthermore, an air outlet duct is connected between the air outlet and the air outlet end of the air supply mechanism.

[0013] Furthermore, it also includes a probe assembly installed on the smoke hood, wherein a gap is formed between the air guide plate and the smoke hood when the air guide plate is in the open state, and the probe assembly monitors cooking information through the gap.

[0014] Furthermore, it also includes a controller connected to the probe assembly, the controller being also connected to the air guide plate and / or the air delivery mechanism, the controller being configured to adjust the operating state of the air guide plate and / or the air delivery mechanism based on the cooking information monitored by the probe assembly.

[0015] The range hood that prevents oil fumes from escaping provided by this utility model can produce the following beneficial effects:

[0016] Compared with the prior art, the air supply mechanism in the range hood provided by this utility model is set inside the smoke collection hood. It can draw non-oil smoke into the air guide channel from the air inlet of the smoke collection hood, and blow it from the air outlet of the smoke collection hood to the air guide plate to form an air curtain after passing through the air supply mechanism. The air curtain can effectively prevent oil smoke from escaping through the gap between the air guide plate and the smoke collection hood. Attached Figure Description

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

[0018] Figure 1 A three-dimensional structural diagram of the air guide plate in a range hood that prevents oil fume escape when it is opened, provided for an embodiment of this utility model;

[0019] Figure 2 A top view of a range hood with its air guide plate closed, provided as an embodiment of this utility model to prevent oil fume escape;

[0020] Figure 3 A front view of a range hood with its air guide plate closed, provided as an embodiment of this utility model to prevent oil fume escape;

[0021] Figure 4 for Figure 3 A-A cross-sectional view;

[0022] Figure 5 for Figure 4 A magnified view of a portion at point C;

[0023] Figure 6is a B-B sectional view of Figure 3

[0024] Figure 7 is a front view of the air guide plate of the oil fume machine provided by the embodiment of the utility model when the air guide plate is opened;

[0025] Figure 8 is a D-D sectional view of Figure 7

[0026] Figure 9 is a three-dimensional structure schematic view of the air guide plate of the oil fume machine provided by the embodiment of the utility model when the air guide plate is not opened;

[0027] Figure 10 is a control principle block diagram of the oil fume machine provided by the embodiment of the utility model.

[0028] Icon: 1 - smoke collecting cover; 11 - air inlet; 12 - air outlet; 13 - smoke suction port; 2 - air guide plate; 3 - air supply mechanism; 4 - main machine assembly; 5 - air inlet pipeline; 6 - air outlet pipeline; 7 - probe assembly. DETAILED DESCRIPTION

[0029] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the scope of protection of the utility model.

[0030] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.​​

[0032] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0033] The present embodiment provides an oil fume machine capable of preventing oil fume from escaping, which comprises a fume collecting cover 1, an air deflector 2 and a blower mechanism 3. Figures 1 to 6 As shown in the drawings, the air deflector 2 is rotatably connected with the fume collecting cover 1, the fume collecting cover 1 has an air inlet 11 and an air outlet 12, the blower mechanism 3 is arranged in the fume collecting cover 1, and the blower mechanism 3 is communicated between the air inlet 11 and the air outlet 12 and forms an air deflector channel between the air inlet 11 and the air outlet 12 for blowing non-oil fume gas to the air deflector 2 to form an air curtain.

[0034] When the oil fume machine is in use, as shown in the drawings, Figure 7 and Figure 8 the air deflector 2 is in an open state and forms a gap b with the fume collecting cover 1, non-oil fume gas can be sucked into the air deflector channel from the air inlet 11 of the fume collecting cover 1, and after passing through the blower mechanism 3, the non-oil fume gas is blown from the air outlet 12 of the fume collecting cover 1 to the air deflector 2 to form an air curtain, which can block the upward rising oil fume and effectively prevent the oil fume from escaping from the gap between the air deflector 2 and the fume collecting cover 1.

[0035] It is worth mentioning that, in the oil fume machine provided by the above embodiment, the blower mechanism 3 is arranged inside the fume collecting cover 1, and compared with the case where the blower mechanism is arranged on the inner wall of the air deflector 2, the oil stains on the blower mechanism 3 can be directly introduced into the oil cup and will not fall into the oil pot. In addition, if the blower mechanism is arranged on the inner wall of the air deflector 2, the oil fume will be sucked into the blower mechanism and will be difficult to enter the fume collecting cover 1 from the smoke suction port 13 of the fume collecting cover 1 as soon as possible, which will reduce the smoke suction effect and cause more oil stains to condense on the air deflector 2 after long-term use, and the oil stains will fall into the oil pot. The oil fume machine provided by the above embodiment can effectively alleviate the above problems, and the non-oil fume gas blown by the blower mechanism 3 to the air deflector 2 can form an air curtain at the above gap b before meeting the air deflector 2, the rising oil fume can quickly enter the fume collecting cover 1 from the smoke suction port 13 under the obstruction of the air curtain, the non-oil fume gas can return after meeting the air deflector 2, the oil fume below is blocked to continue rising, and the returned non-oil fume gas can enter the fume collecting cover 1 together with the oil fume from the smoke suction port 13, so that there will be no more oil stains condensed on the air deflector 2.

[0036] It can be understood that the above non-oil fume gas refers to gas with oil fume content far less than the oil fume content at the smoke suction port 13.

[0037] The air inlet 11 can be arranged at various positions, such as the top end of the smoke hood 1, the upper position of the sidewall of the smoke hood 1, etc., as long as the smoking area is avoided. In the open state of the air deflector 2, the smoking area can be regarded as the area between the inner wall of the air deflector 2 and the smoke inlet 13, and the concentration of the oil fume in this part is relatively high.

[0038] In an optional embodiment, as shown in Figure 2 , the air inlet 11 is arranged at the top end of the smoke hood 1.

[0039] Since the top end of the smoke hood 1 is far away from the smoking area, the gas sucked by the air inlet 11 can be relatively clean.

[0040] The air inlet can be configured as one or multiple. In an optional embodiment, as shown in Figure 2 , the air inlet 11 is configured as multiple, and the multiple air inlets 11 are arranged in a matrix to ensure that the air inlet area is large enough, while avoiding that a single air inlet 11 is too large, which causes foreign matters to easily fall into the smoke hood 1.

[0041] The air inlet 11 can be circular, rectangular, triangular, or waist-shaped, etc., and the shape is not limited.

[0042] In an optional embodiment, the extractor hood further comprises a main machine assembly 4 connected to the top end of the smoke hood 1, and the air inlet 11 is located on the outer side of the main machine assembly 4. The air inlet 11 can directly suck clean air, and the air inlet 11 and the main machine assembly 4 do not interfere with each other.

[0043] As shown in Figure 2 , the main machine assembly 4 is connected to the middle part of the top end of the smoke hood 1, and the air inlet 11 is located on the left side of the main machine assembly 4. The air supply mechanism 3 can be located directly below the air inlet 11, so that the non-oil fume gas at the air inlet 11 can be sucked into the air supply mechanism 3.

[0044] In an optional embodiment, as shown in Figure 4 and Figure 5 , the air inlet 11 is connected with the air inlet end of the air supply mechanism 3 through an air inlet pipeline 5.

[0045] In use, the non-oil fume gas at the air inlet 11 can enter the air inlet end of the air supply mechanism 3 through the air inlet pipeline 5, avoiding the communication between the smoke collecting cavity in the smoke hood 1 and the air deflection channel, and isolating the oil fume in the smoke collecting cavity outside the air deflection channel.

[0046] Specifically, the air inlet pipeline 5 can be tubular, independently forming a channel for guiding the non-oil fume gas at the air inlet 11 to the air inlet end of the air supply mechanism 3, or the air inlet pipeline 5 can be semi-enclosed, and the air inlet pipeline 5 is connected with the inner wall of the smoke hood 1 and forms a channel between the air inlet pipeline 5 and the inner wall of the smoke hood 1 for guiding the non-oil fume gas at the air inlet 11 to the air inlet end of the air supply mechanism 3.

[0047] In optional embodiments, as shown in Figure 1 the height of the air outlet 12 is higher than the smoke suction port 13 on the smoke hood 1.

[0048] In the above embodiments, the non-oil fume blown by the air outlet 12 can form a wind curtain above the smoke suction port 13, thereby preventing the oil fume below from escaping from the gap between the deflector 2 and the smoke hood 1.

[0049] In optional embodiments, as shown in Figure 1 the air outlet 12 is configured in multiple, and the multiple air outlets 12 are distributed along the horizontal direction from one end of the top of the smoke suction port 13 to the other end, so as to form a larger air outlet surface.

[0050] As shown in Figure 1 the above embodiments can make the air outlet 12 be distributed from the left end of the top of the smoke suction port 13 to the right end of the top of the smoke suction port 13, and since the arrangement direction of the air outlet 12 extends horizontally, the wind curtain formed by the non-oil fume blown by the air outlet 12 can cover the entire top of the smoke suction port 13, thereby preventing the oil fume below from escaping from the gap between the deflector 2 and the smoke hood 1.

[0051] Specifically, the multiple air outlets 12 are distributed at equal intervals along the horizontal direction from one end of the top of the smoke suction port 13 to the other end.

[0052] In optional embodiments, the opening direction of the air outlet 12 is consistent with the opening direction of the smoke suction port 13.

[0053] The above arrangement facilitates the opening of the air outlet 12, and the air outlet 12 can be directly opened on the front surface of the smoke hood 1 vertically arranged above the smoke suction port 13, and the direction of the above air outlet 12 will not hinder the flow of the rising oil fume into the smoke suction port 13.

[0054] The air outlet 12 can be circular, rectangular, triangular, or waist-shaped, and its shape is not limited.

[0055] In optional embodiments, as shown in Figure 5 and Figure 6 the air outlet 12 is connected with the air outlet end of the air supply mechanism 3 through an air outlet pipeline 6.

[0056] In use, the non-oil fume at the air outlet end of the air supply mechanism 3 can be discharged from the air outlet 12 through the air outlet pipeline 6, avoiding the communication between the smoke collection cavity in the smoke hood 1 and the air deflection channel, and isolating the oil fume in the smoke collection cavity outside the air deflection channel.

[0057] Similar to the air inlet duct 5, the air outlet duct 6 can be tubular, independently forming a channel guiding the non-oil-fume gas at the air outlet end of the air blowing mechanism 3 to the air outlet 12, or the air outlet duct 6 can be semi-enclosed, connected with the inner wall of the fume hood 1 and forming a channel guiding the non-oil-fume gas at the air outlet end of the air blowing mechanism 3 to the air outlet 12 with the inner wall of the fume hood 1.

[0058] In an optional embodiment, the air blowing mechanism 3 comprises a fan, the air inlet end of the fan being connected with the air inlet duct 5, and the air outlet end of the fan being connected with the air outlet duct 6.

[0059] In an optional embodiment, as shown in Figure 9 the oil fume extractor further comprises a probe assembly 7 mounted on the fume hood 1, and the air deflector 2 forms a gap with the fume hood 1 in the open state, and the probe assembly 7 monitors the cooking information from the gap.

[0060] The cooking information can include, but is not limited to, at least one of the temperature in the pot and the oil fume concentration.

[0061] Specifically in use, after the air deflector 2 is opened, the opening of the air deflector 2 does not block the probe assembly 7, and the probe assembly 7 can detect the temperature in the pot and / or the oil fume concentration through the gap between the air deflector 2 and the fume hood 1, thereby guiding the working state of other structures in the oil fume extractor, and the use of the probe assembly 7 is not affected by the opening and closing of the air deflector 2. In addition, during the detection process, the non-oil-fume gas blown by the air blowing mechanism 3 to the air deflector 2 can form an air curtain at the above-mentioned gap before encountering the air deflector 2, thereby hindering the oil fume below from rising, on the one hand, avoiding the escape of the oil fume from the above-mentioned gap, and on the other hand, isolating the contact between the probe assembly 7 and the oil fume, so that the probe of the probe assembly 7 is not easily polluted by the oil fume, ensuring the accuracy of the detection and prolonging the cleaning period of the probe.

[0062] The probe assembly 7 can include a temperature sensing probe or a camera probe.

[0063] In an optional embodiment, a controller connected with the probe assembly 7 is further included, the controller being further connected with the air deflector 2 and / or the air blowing mechanism 3, and the controller being configured to adjust the working state of the air deflector 2 and / or the air blowing mechanism 3 according to the cooking information monitored by the probe assembly 7.

[0064] When the controller is connected with the air deflector 2, the probe assembly 7 detects the temperature in the pot and / or the oil fume concentration, and once the temperature of the pot and / or the depth of the oil fume reaches a certain set value A1, the controller controls the air deflector 2 to open, and the controller can also be connected with the smoke fan in the oil fume extractor, and simultaneously controls the smoke fan to start.

[0065] When the controller is connected with the air blowing mechanism 3, the probe assembly 7 detects the temperature and / or the oil fume concentration in the pot, and once the pot temperature and / or the oil fume depth reaches a certain set value A2, it proves that the oil fume amount is larger at this time, the controller controls the air blowing mechanism 3 to work, generates the air curtain, and effectively avoids the oil fume from escaping from the gap between the air deflector and the smoke collecting cover.

[0066] Of course, in the optional embodiment, the controller is also connected with the air deflector 2 and the air blowing mechanism 3, and the control process is as shown in Figure 10

[0067] 1) The range hood is started;

[0068] 2) The probe assembly 7 works to monitor whether the temperature or the oil fume concentration of the left pot, the right pot or the double pots reaches a set value A1;

[0069] 3) If not, the controller controls the air deflector 2 not to open; if yes, the controller controls the air deflector 2 to open;

[0070] 4) The probe assembly 7 monitors whether the temperature or the oil fume concentration of the left pot, the right pot or the double pots reaches a set value A2;

[0071] 5) If not, it proves that the oil fume amount is smaller at this time, the oil fume will not escape from the gap between the air deflector and the smoke collecting cover, the air blowing mechanism 3 does not work, and the air curtain is not generated; if yes, it proves that the oil fume amount is larger at this time, the controller controls the air blowing mechanism 3 to work, generates the air curtain, and effectively avoids the oil fume from escaping from the gap between the air deflector and the smoke collecting cover.

[0072] Therefore, the range hood in the above embodiment can realize the detection of the oil pot temperature and / or the oil fume size by using only one set of probe assembly 7, and under the condition of large oil fume, the oil fume will not pollute the probe assembly 7 due to the existence of the air curtain after the air deflector 2 is opened, the cleaning frequency of the probe is reduced, and the service life is prolonged.

[0073] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.​

Claims

1. A range hood that prevents oil fume escape, characterized in that, The system includes a smoke hood (1), an air guide plate (2), and an air supply mechanism (3). The air guide plate (2) is rotatably connected to the smoke hood (1). The smoke hood (1) has an air inlet (11) and an air outlet (12). The air supply mechanism (3) is disposed inside the smoke hood (1). The air supply mechanism (3) is connected between the air inlet (11) and the air outlet (12) and forms an air guide channel between the air inlet (11) and the air outlet (12) for blowing non-oil fume gas toward the air guide plate (2) to form an air curtain.

2. The range hood for preventing oil fume escape according to claim 1, characterized in that, The air inlet (11) is located at the top of the smoke hood (1).

3. The range hood for preventing oil fume escape according to claim 2, characterized in that, It also includes a main unit assembly (4) connected to the top of the smoke hood (1), and the air inlet (11) is located outside the main unit assembly (4).

4. The range hood for preventing oil fume escape according to claim 1, characterized in that, An air inlet pipe (5) is connected between the air inlet (11) and the air inlet end of the air supply mechanism (3).

5. The range hood for preventing oil fume escape according to claim 1, characterized in that, The smoke hood (1) has a smoke inlet (13), and the air outlet (12) is higher than the smoke inlet (13).

6. The range hood for preventing oil fume escape according to claim 5, characterized in that, The air outlet (12) is configured as a plurality of such outlets, which are distributed at intervals along the horizontal direction from one end of the top of the smoke inlet (13) to the other end.

7. The range hood for preventing oil fume escape according to claim 5, characterized in that, The opening orientation of the air outlet (12) is the same as the opening orientation of the smoke inlet (13).

8. The range hood for preventing oil fume escape according to claim 1, characterized in that, An air outlet (12) is connected to the air outlet end of the air supply mechanism (3) by an air outlet pipe (6).

9. The range hood for preventing oil fume escape according to any one of claims 1-8, characterized in that, It also includes a probe assembly (7) installed on the smoke hood (1), wherein the air guide plate (2) forms a gap with the smoke hood (1) in the open state, and the probe assembly (7) monitors cooking information through the gap.

10. The range hood for preventing oil fume escape according to claim 9, characterized in that, It also includes a controller connected to the probe assembly (7), the controller being connected to the air guide plate (2) and / or the air supply mechanism (3), the controller being configured to adjust the working state of the air guide plate (2) and / or the air supply mechanism (3) based on the cooking information monitored by the probe assembly (7).

Images