Range hood

Abstract

The utility model relates to a range hood, which comprises a shell, an air inlet, an air outlet and a fan, a smoke barrier assembly; the range hood is characterized in that the smoke baffle assembly comprises a first smoke baffle and a second smoke baffle which are arranged side by side in the left-right direction, the first smoke baffle is restrained on the shell in the mode that the first smoke baffle can move left and right, and the second smoke baffle is rotationally connected to the shell in the mode that the second smoke baffle can rotate around the axis extending left and right. In the first state, the first smoke barrier and the second smoke barrier jointly close the air inlet; in the second state, the second smoke barrier closes the corresponding position of the right side of the air inlet, the first smoke barrier moves towards the second smoke barrier, at least part of the first smoke barrier is located on the rear side of the second smoke barrier, and at least part of the corresponding position of the left side of the air inlet can be exposed; and in the third state, the first smoke barrier closes the corresponding position of the left side of the air inlet, and the second smoke barrier opens the corresponding position of the right side of the air inlet. According to the range hood, the air inlet can be partially opened, the air inlet area is reduced, and then the oil smoke suction effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil fume purification technical field especially, relates to a range hood. BACKGROUND

[0002] The range hood has become one of indispensable kitchen household electrical appliances in modern family. The range hood is worked by using fluid dynamics principle, and the oil fume is sucked and discharged through the centrifugal fan installed in the range hood. The centrifugal fan includes a volute, an impeller installed in the volute and a motor driving the impeller to rotate. When the impeller rotates, the negative pressure suction force is generated in the center of the fan, and the oil fume below the range hood is sucked into the fan, and the oil fume is collected and guided by the volute after being accelerated by the fan and discharged outdoor.

[0003] The existing range hood usually includes a shell with an opening on the front side, and a smoke baffle capable of being turned relative to the shell is arranged on the front side opening of the shell to close or open the air inlet. For example, the Chinese utility model patent No. ZL201922457843.5 (authorized publication No. CN211822577U) and the Chinese utility model patent No. ZL201820960219. X (authorized publication No. CN208587946U) disclose the range hood structure in the prior art.

[0004] The opening angle of the smoke baffle of the range hood in the prior art is usually fixed, which cannot adapt to the changeable cooking conditions. In addition, the smoke baffle of the range hood in the prior art is usually a whole piece, and no matter the user cooks on one side or both sides, the smoke baffle is rotated as a whole. Therefore, when the user cooks on one side, the whole air inlet is opened, which affects the oil fume suction effect of the range hood due to the large air inlet area. Therefore, the prior art needs to be further improved. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of the prior art, and provides a range hood capable of adapting to different cooking conditions and improving the oil fume suction effect.

[0006] The utility model solves the technical problem by adopting the following technical scheme: a range hood includes:

[0007] A shell has an air inlet on the front side;

[0008] A smoke baffle assembly is arranged on the front part of the shell and can open or close the air inlet;

[0009] The smoke baffle assembly comprises a first smoke baffle and a second smoke baffle arranged side by side, the first smoke baffle is movably arranged on the housing, and the second smoke baffle is rotatably connected to the housing.

[0010] The first smoke baffle and the second smoke baffle have at least three states as follows:

[0011] In the first state, the first smoke baffle closes the left side of the air inlet, and the second smoke baffle closes the right side of the air inlet, so that the first smoke baffle and the second smoke baffle jointly close the air inlet.

[0012] In the second state, the second smoke baffle closes the right side of the air inlet, and the first smoke baffle moves towards the second smoke baffle, and at least part of the first smoke baffle is located behind the second smoke baffle, so that the left side of the air inlet is at least partially exposed.

[0013] In the third state, the first smoke baffle closes the left side of the air inlet, and the second smoke baffle opens the right side of the air inlet.

[0014] In order to realize the movement of the first smoke baffle, the range hood comprises a first movement mechanism for driving the movement of the first smoke baffle.

[0015] The structure of the first movement mechanism can be various, and preferably, the first movement mechanism comprises a motor and a gear arranged on the power output shaft of the motor, the back surface of the first smoke baffle is provided with a rack arranged along the length direction of the first smoke baffle, and the gear is engaged with the rack.

[0016] In order to improve the movement stability of the first smoke baffle, the back surface of the first smoke baffle is further provided with a slide strip extending along the length direction of the first smoke baffle, and the housing is provided with a sliding groove capable of slidingly cooperating with the slide strip.

[0017] Preferably, the slide strip comprises a main body segment and a head arranged at the front end of the main body segment, the main body segment of the slide strip is substantially perpendicular to the first smoke baffle, and the head protrudes from the main body segment.

[0018] In order to prevent the first smoke baffle from rotating during movement, preferably, the head is of a special shape.

[0019] Preferably, the lengths of the first smoke baffle and the second smoke baffle are substantially equal.

[0020] In the first state, the back surface of the second smoke baffle is higher than the outer surface of the first smoke baffle.

[0021] In order to achieve the rotation of the second smoke baffle, the range hood also includes a second motion mechanism for driving the second smoke baffle to rotate.

[0022] Preferably, the range hood further includes an oil fume detection module disposed on the housing and a controller electrically connected to the oil fume detection module, wherein the controller is electrically connected to the first motion mechanism and the second motion mechanism.

[0023] Compared with existing technologies, the advantages of this invention are as follows: By dividing the smoke baffle assembly into a first smoke baffle and a second smoke baffle arranged side by side, and since the first and second smoke baffles can be opened independently, their actions can be controlled according to different working conditions. This allows the air inlet to partially open, reducing the air intake area and thus improving the smoke extraction effect. Therefore, this range hood can adapt to different cooking conditions and enhance the user experience. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the range hood in this embodiment of the present invention (the smoke baffle assembly is in the first state);

[0025] Figure 2 This is a schematic diagram of the structure of the range hood in this embodiment of the present invention (the smoke baffle assembly is in the third state);

[0026] Figure 3 for Figure 1 A sectional view;

[0027] Figure 4 This is a schematic diagram of the structure of the first smoke baffle in an embodiment of this utility model. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like Figures 1 to 3 As shown, the range hood in this embodiment includes a housing 1 and a smoke baffle assembly 2. The housing 1 has an air inlet 10 on the front side, and the smoke baffle assembly 2 is located at the front of the housing 1 and can open or close the air inlet 10. Of course, the housing 1 is also equipped with a fan system, which is existing technology and will not be described in detail here.

[0030] The smoke baffle assembly 2 in this embodiment includes a first smoke baffle 21 and a second smoke baffle 22 arranged side by side. The first smoke baffle 21 is constrained to the housing 1 in a manner that allows it to move left and right, and the second smoke baffle 22 is rotatably connected to the housing 1 in a manner that allows it to rotate around an axis that extends left and right.

[0031] The range hood includes a first motion mechanism 3 for driving the first smoke baffle 21 to move and a second motion mechanism 7 for driving the second smoke baffle 22 to rotate. Figure 3 As shown, the first motion mechanism 3 in this embodiment includes a motor 31 and a gear 32 disposed on the power output shaft of the motor 31. A rack 4 is provided on the back of the first smoke baffle 21 along its length direction. The gear 32 meshes with the rack 4. The motor 31 drives the gear 32 to rotate. Because the gear 32 meshes with the rack 4, it can drive the first smoke baffle 21 to move. The second motion mechanism 7 in this embodiment can adopt a driving mechanism for driving the smoke baffle to rotate in the prior art (e.g., a linkage mechanism). Its driving method can adopt existing technology and will not be elaborated further here.

[0032] In addition, the range hood also includes an oil fume detection module (not shown in the figure) mounted on the housing 1 and a controller (not shown in the figure) electrically connected to the oil fume detection module. The controller is electrically connected to the first motion mechanism 3 and the second motion mechanism 7. The oil fume detection module can be an oil fume sensor, and the controller can control the first motion mechanism 3 and / or the second motion mechanism 7 to operate according to the detection results of the oil fume detection module.

[0033] like Figure 3 As shown, the back of the first smoke baffle 21 is also provided with a slide bar 5 extending along its length, and the housing 1 is provided with a slide groove 6 that can slide and engage with the slide bar 5. Figure 4 As shown, the slider 5 includes a main body section 51 and a head 52 located at the front end of the main body section 51. The main body section 51 of the slider 5 is basically perpendicular to the first smoke baffle 21. The head 52 protrudes from the main body section 51. In this embodiment, the head 52 is irregularly shaped to prevent the first smoke baffle 21 from rotating during movement, thereby ensuring that the first smoke baffle 21 moves smoothly.

[0034] The first smoke baffle 21 and the second smoke baffle 22 have at least the following three states:

[0035] In the first state, the first smoke baffle 21 closes the corresponding position on the left side of the air inlet 10, and the second smoke baffle 22 closes the corresponding position on the right side of the air inlet 10, thus the first smoke baffle 21 and the second smoke baffle 22 together close the air inlet 10; Figure 1 As shown, the lengths of the first smoke baffle 21 and the second smoke baffle 22 in this embodiment are basically equal; in the first state, the back of the second smoke baffle 22 is higher than the outer surface of the first smoke baffle 21; however, in order to ensure the sealing effect of the air inlet 10, the gap between the back of the second smoke baffle 22 and the outer surface of the first smoke baffle 21 is small, allowing the first smoke baffle 21 to move to its rear side only.

[0036] In the second state, the second smoke baffle 22 closes the right side corresponding position of the air inlet 10, the first smoke baffle 21 moves towards the second smoke baffle 22, and at least part of the first smoke baffle 21 is located at the rear side of the second smoke baffle 22, so that the left side corresponding position of the air inlet 10 is at least partially exposed;

[0037] In the third state, the first smoke baffle 21 closes the left side corresponding position of the air inlet 10, and the second smoke baffle 22 opens the right side corresponding position of the air inlet 10. Figure 2

[0038] The first state corresponds to the working condition of the range hood being closed, and the left and right distributed double burners are respectively marked as left burner and right burner in the prior art household. The second state corresponds to the working condition of the left burner being used, and the first smoke baffle 21 can be moved right to the rear side of the second smoke baffle 22, and the specific moving distance of the first smoke baffle 21 can be adaptively modified according to the amount of oil smoke detected by the oil smoke detection module. The third state corresponds to the working condition of the right burner being used, and the second smoke baffle 22 is rotated to be opened, so that the oil smoke can be effectively sucked.

[0039] Of course, the first smoke baffle 21 and the second smoke baffle 22 in the embodiment also have a fourth state, which corresponds to the working condition of the double burners being used simultaneously. The first smoke baffle 21 can be moved left by reversing the motor 31, and at least part of the first smoke baffle 21 opens the left side corresponding position of the air inlet 10. The second smoke baffle 22 opens the right side corresponding position of the air inlet 10.

[0040] In the description and claims of the present application, terms used to indicate directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various example structural parts and elements of the present application, but these terms are used only for the purpose of convenient description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present application can be arranged in different directions, these terms indicating directions are only for illustration and should not be considered as limitation, for example, "upper" and "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity.​

Claims

1. A range hood, comprising: a housing (1) having an air inlet (10) on a front side thereof; a baffle plate assembly (2) arranged at a front portion of the housing (1) and capable of opening or closing the air inlet (10); characterized in that the baffle plate assembly (2) comprises a first baffle plate (21) and a second baffle plate (22) arranged side by side, the first baffle plate (21) is movably constrained to the housing (1) along a left-right direction, and the second baffle plate (22) is rotatably connected to the housing (1) about an axis extending in the left-right direction; the first baffle plate (21) and the second baffle plate (22) have at least three states as follows: in a first state, the first baffle plate (21) closes a left corresponding position of the air inlet (10), and the second baffle plate (22) closes a right corresponding position of the air inlet (10), so that the first baffle plate (21) and the second baffle plate (22) jointly close the air inlet (10); in a second state, the second baffle plate (22) closes the right corresponding position of the air inlet (10), and the first baffle plate (21) moves towards the second baffle plate (22), at least a part of the first baffle plate (21) is located at a rear side of the second baffle plate (22), so that the left corresponding position of the air inlet (10) is at least partially exposed; in a third state, the first baffle plate (21) closes the left corresponding position of the air inlet (10), and the second baffle plate (22) opens the right corresponding position of the air inlet (10).

2. The hood according to claim 1, characterized in that: The range hood comprises a first movement mechanism (3) for driving the first baffle plate (21) to move.

3. The hood according to claim 2, characterized in that: The first movement mechanism (3) comprises a motor (31) and a gear (32) arranged on a power output shaft of the motor (31), and a rack (4) is arranged on a back surface of the first baffle plate (21) along a length direction of the first baffle plate (21), the gear (32) is engaged with the rack (4).

4. The hood according to claim 3, characterized in that: The back surface of the first baffle plate (21) is further provided with a slide bar (5) extending along the length direction of the first baffle plate (21), and a slide groove (6) capable of slidingly cooperating with the slide bar (5) is arranged in the housing (1).

5. The hood according to claim 4, characterized in that: The slide bar (5) comprises a main body segment (51) and a head portion (52) arranged at a front end of the main body segment (51), the main body segment (51) of the slide bar (5) is substantially perpendicular to the first baffle plate (21), and the head portion (52) protrudes from the main body segment (51).

6. The hood according to claim 5, characterized in that: The head portion (52) is of a special shape.

7. The hood according to any one of claims 1-6, characterized in that: The first baffle plate (21) and the second baffle plate (22) have substantially equal lengths.

8. The hood according to claim 7, characterized in that: In the first state, a back surface of the second baffle plate (22) is higher than an outer surface of the first baffle plate (21).

9. The hood according to claim 2, characterized in that: The range hood further comprises a second movement mechanism (7) for driving the second baffle plate (22) to rotate.

10. The hood according to claim 9, characterized in that: The range hood further comprises an oil fume detection module arranged on the housing (1) and a controller electrically connected with the oil fume detection module, the controller is electrically connected with the first movement mechanism (3) and the second movement mechanism (7).

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