Range hood

Abstract

The utility model discloses a range hood, which comprises a shell, an exhaust fume collecting hood, an exhaust fume collecting hood cover, an exhaust fume collecting hood cover, an exhaust fume collecting hood cover, an exhaust fume collecting hood cover and an exhaust fume collecting hood cover, and the exhaust fume collecting hood cover is arranged on the exhaust fume collecting hood cover; in the direction from back to front, the flow guide plate is obliquely arranged upwards, and a smoke inlet is formed in the flow guide plate; the smoke gathering plate has a first state for closing the smoke inlet and a second state for opening the smoke inlet; the driving mechanism is arranged on the shell and used for driving the smoke gathering plate to be switched between the first state and the second state, and in the process of switching from the first state to the second state, the driving mechanism drives the smoke gathering plate to do composite motion of rotation and upward movement. And when the smoke gathering plate is in the second state, at least part of the smoke gathering plate is located on the upper side of the smoke inlet, and the smoke gathering plate and the guide plate jointly define a smoke gathering cavity communicated with the smoke inlet. According to the technical scheme, the oil smoke suction effect of the range hood can be improved.

Description

Technical Field

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

[0002] In the related art, the range hood is placed relatively close to the cooking range, so that the smoke inlet of the range hood is closer to the source of the cooking fumes, enabling the range hood to suck away the cooking fumes faster. However, precisely because the smoke inlet is closer to the source of the cooking fumes, when the user cooks in a stir-frying or other high-heat way, the cooking fumes will rise too fast, resulting in a lot of cooking fumes spilling out of the smoke inlet, thus causing the range hood to have a poor fume extraction effect. Content of the Utility Model

[0003] The main object of the utility model is to propose a range hood, aiming to improve the fume extraction effect of the range hood.

[0004] To achieve the above object, the range hood proposed by the utility model includes:

[0005] A housing, including a smoke collecting hood, and the smoke collecting hood includes a back plate and a deflector plate opposite to the back plate; in the direction from the back to the front, the deflector plate is inclined upward, and the deflector plate is provided with a smoke inlet;

[0006] A smoke baffle, which has a first state of closing the smoke inlet and a second state of opening the smoke inlet; and

[0007] A driving mechanism, which is arranged on the housing and is used to drive the smoke baffle to switch between the first state and the second state, and in the process of switching from the first state to the second state, the driving mechanism drives the smoke baffle to perform a compound movement of rotation and upward movement, so that in the second state, at least a part of the smoke baffle is located above the smoke inlet and jointly defines a smoke collecting cavity communicating with the smoke inlet with the deflector plate.

[0008] Optionally, the included angle range between the deflector plate and the back plate is 10° to 30°.

[0009] Optionally, the range hood further includes an upper panel arranged on the deflector plate and located above the smoke inlet;

[0010] In the first state, the smoke baffle is joined with the upper panel to jointly cover the deflector plate; in the second state, the upper end of the smoke baffle abuts against the upper panel.

[0011] Optionally, in the second state, the upper end of the smoke baffle abuts against the upper end of the upper panel.

[0012] Optionally, the driving mechanism includes a driver, a driving arm, and a first driven arm. The driver is disposed within the housing. The output shaft of the driver is connected to the first end of the driving arm to drive the driving arm to rotate. The second end of the driving arm is rotatably connected to the smoke collecting plate. The first end of the first driven arm is rotatably connected within the housing, and the second end of the first driven arm is rotatably connected to the smoke collecting plate.

[0013] Optionally, the driving mechanism further includes a second driven arm and a transmission rod. The second driven arm and the first driven arm are disposed on the transverse two sides of the smoke collecting plate relatively. The first end of the second driven arm is rotatably connected within the housing. The second end of the second driven arm is rotatably connected to the smoke collecting plate. One end of the transmission rod is fixedly connected to the first end of the first driven arm, and the other end is fixedly connected to the first end of the second driven arm to make the rotation of the second driven arm synchronous with that of the first driven arm.

[0014] Optionally, the driving mechanism further includes a third driven arm. The third driven arm and the driving arm are disposed on the transverse two sides of the smoke collecting plate relatively. The first end of the third driven arm is rotatably connected within the housing, and the second end of the third driven arm is rotatably connected to the smoke collecting plate.

[0015] Optionally, both the driving arm and the first driven arm are bent, and the opening formed by the bending is upwardly disposed in the second state.

[0016] Optionally, the driving arm and the first driven arm are disposed on one side of the smoke collecting plate in the transverse direction, and the driving arm and / or the first driven arm are flat-shaped.

[0017] Optionally, in the second state, the driving arm and the first driven arm are spliced in the vertical direction.

[0018] Optionally, the range hood further includes a first mounting seat connected to the housing. The driver is connected to the first mounting seat, and the first end of the first driven arm is rotatably connected to the first mounting seat.

[0019] Optionally, the range hood further includes a second mounting seat connected to the smoke collecting plate. The second end of the driving arm and the second end of the first driven arm are both rotatably connected to the second mounting seat.

[0020] Optionally, the driving mechanism includes a driver, a driving arm, and a deflection motor. The driver is disposed within the housing. The output shaft of the driver is connected to the first end of the driving arm to drive the driving arm to rotate. The deflection motor is fixedly disposed at the second end of the driving arm, and the output shaft of the deflection motor is connected to the smoke collecting plate to drive the smoke collecting plate to deflect vertically.

[0021] Optionally, the range hood further comprises a partition disposed in the shell, the partition partitioning the inner cavity of the shell into an oil fume suction channel and an installation cavity, the oil fume suction channel is connected to the smoke inlet, and the driving mechanism is installed in the installation cavity.

[0022] Optionally, the housing includes a smoke collecting hood and a fan cover arranged on the upper side of the smoke collecting hood, and a smoke outlet is arranged between the fan cover and the smoke collecting hood;

[0023] Two partitions are arranged opposite to each other in the smoke collecting hood, and the two partitions are arranged on opposite sides of the smoke outlet, and the width between the two partitions is gradually reduced in the direction close to the smoke outlet, so that the partition can guide the oil smoke airflow to the smoke outlet.

[0024] Optionally, the driver is connected to a wire, a wire mounting structure is provided on the driving arm, and the wire is arranged on the wire mounting structure.

[0025] Optionally, the wire installation structure includes a wire box extending along the driving arm, and the wire is passed through the wire box.

[0026] In the technical solution of the utility model, in the process of switching from the first state to the second state, the driving mechanism drives the smoke collecting plate to perform a compound motion of rotation and upward movement, so that the smoke collecting plate is at least partially located on the upper side of the smoke inlet in the second state. In this way, on the one hand, in the second state, the smoke collecting plate and the guide plate form a smoke collecting cavity, thereby improving the oil fume extraction effect of the range hood. On the other hand, the smoke collecting plate also moves upward as a whole, thereby making way for a cooking operation space below, which is convenient for users to perform cooking operations and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of an embodiment of the range hood of the utility model when the smoke collecting plate is in the second state;

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of the central range hood with the smoke collecting plate in a first state;

[0030] Figure 3 The Figure 1 structural schematic diagram among the drive mechanism, the first mounting seat and the second mounting seat of the range hood in

[0031] Figure 4 The Figure 1 exploded structural schematic diagram of a part of the structure of the range hood in

[0032] Figure 5 The Figure 4 amplified schematic diagram at position A in

[0033] Figure 6 The Figure 4 amplified schematic diagram at position B in

[0034] Figure 7 The Figure 1 structural schematic diagram of the wire box of the range hood in

[0035] Figure 8 structural schematic diagram of another embodiment of the range hood of the present utility model;

[0036] Figure 9 The Figure 8 partial structural schematic diagram of the range hood in

[0037] Explanation of the reference numerals in the drawings:

[0038] 1. Outer shell; 100. Smoke inlet; 11. Smoke collecting hood; 111. Back plate; 112. Deflector; 12. Fan cover; 110. Smoke passing port; 10. Smoke extraction channel; 10a. Left channel; 10b. Right channel; 13. Upper panel; 2. Flow splitting structure; 21. Rotating part; 22. Fixed part; 5. Smoke gathering plate; 6. Drive mechanism; 60. Installation cavity; 61. Driver; 62. Driving arm; 621. Splicing sunk groove; 622. Arm body; 623. Installation part; 624. Positioning step; 631. First driven arm; 632. Second driven arm; 633. Transmission rod; 64. Third driven arm; 71. First mounting seat; 72. Separator; 73. Wire box; 731. Wire groove; 732. Connecting lug; 8. Second mounting seat; 81. First bracket; 811. Installation flange; 812. Positioning rib; 82. Second bracket; 821. Positioning hole; 9. Installation cover plate; 91. Slot; 92. Wire passing port; 93. Abutting flange

[0039] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0041] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] The present invention provides an oil fume extractor.

[0044] Referring to Figure 1 and Figure 2 , in an embodiment of the present invention, the oil fume extractor includes:

[0045] A housing 1 provided with a smoke inlet 100;

[0046] A driving mechanism 6 provided in the housing 1; and

[0047] A smoke collecting plate 5 connected to the driving mechanism 6, and the smoke collecting plate 5 is adapted to open and close the smoke inlet 100 under the drive of the driving mechanism 6.

[0048] For the convenience of subsequent description, the state where the smoke collecting plate 5 closes the smoke inlet 100 is defined as the first state, and the state where the smoke collecting plate 5 opens the smoke inlet 100 is defined as the second state.

[0049] It can be understood that during the long-term use of sucking and exhausting oil fumes, it is inevitable that dirt such as oil fumes adheres to the inside of the housing 1. Usually, the driving mechanism 6 generally drives the smoke collecting plate 5 to the first state, so as to block the dirt inside the housing 1 through the smoke collecting plate 5 and restrict external objects from extending into the housing 1 through the smoke inlet 100. When cooking with the stove below, the driving mechanism 6 drives the smoke collecting plate 5 to the second state, so as to suck oil fumes through the smoke inlet 100 and discharge the oil fumes outdoors; and the smoke collecting plate 5 in the second state usually extends obliquely forward and downward of the range hood, so as to form a smoke collecting cavity communicating with the smoke inlet 100 between the smoke collecting plate 5 and the housing 1, reducing the probability of oil fume overflow, thereby improving the oil fume suction effect of the range hood.

[0050] In one embodiment, referring to Figures 1 to 4 , further, the housing 1 includes a smoke collecting cover 11. The smoke collecting cover 11 includes a back plate 111 and a flow guiding plate 112 opposite to the back plate 111. In the direction from the back to the front, the flow guiding plate 112 is inclined upward, and the smoke inlet 100 is provided on the flow guiding plate 112. Generally, in the first state, the smoke collecting plate 5 fits on the flow guiding plate 112 to close the smoke inlet 100; in the second state, the smoke collecting plate 5 forms an included angle with the flow guiding plate 112 to open the smoke inlet 100 and jointly define a smoke collecting cavity communicating with the smoke inlet 100. In this embodiment, the smoke inlet 100 is opened on the flow guiding plate 112 relatively close to the cookware, so that the smoke inlet 100 can quickly suck away the oil fumes before the oil fumes spread, and the oil fume suction effect is better. Moreover, the inclined flow guiding plate 112 can make the smoke inlet 100 opened larger and intersect with the rising oil fumes, further improving the oil fume suction effect.

[0051] Further, during the process of switching from the first state to the second state, the driving mechanism 6 drives the smoke collecting plate 5 to perform a combined movement of rotation and upward movement, so that at least a part of the smoke collecting plate 5 is located above the smoke inlet 100 in the second state; it can be understood that in this embodiment, the smoke collecting plate 5 not only forms a smoke collecting cavity with the flow guiding plate 112, thereby improving the oil fume suction effect of the range hood, but also the smoke collecting plate 5 moves upward as a whole, so as to reserve a cooking operation space below for the user to perform cooking operations conveniently and improve the user experience.

[0052] It is worth mentioning that in this embodiment, since the smoke collecting plate 5 performs a combined movement of rotation and upward movement, the opening trajectory of the lower end of the smoke collecting plate 5 is elliptical or quasi-elliptical (see Figure 1)。In the related art, the smoke collecting plate 5 usually rotates and opens around the fixed point at the upper end, and the opening trajectory of the lower end of the smoke collecting plate 5 is circular. Compared with the circular opening trajectory in the related art, the elliptical or quasi-elliptical opening trajectory in the technical solution of the present utility model occupies less space in front of the air inlet 100 during the opening process of the smoke collecting plate 5, thereby reducing the occlusion of the user's field of vision and reducing the probability of the lower end of the smoke collecting plate 5 touching the user.

[0053] Optionally, the included angle between the deflector plate 112 and the back plate 111 is β, and the value range of the included angle β is 10° to 30°. In this way, the deflector plate 112 is relatively inclined towards the vertical direction to reduce the occupation of the user's operation space by the smoke collecting hood 11; as Figure 1 and Figure 2 shown, the upper end of the deflector plate 112 extends obliquely to the middle or the middle and rear part of the top plate of the smoke collecting hood 11, and the overall smoke collecting hood 11 is arranged in a nearly "7" shape in the side view. Further optionally, the value of the included angle β is 20°.

[0054] Furthermore, the range hood further includes an upper panel 13 disposed on the deflector plate 112 and above the air inlet 100. In the first state, the smoke collecting plate 5 is joined with the upper panel 13 to jointly cover the deflector plate 112; in this embodiment, in the first state, the smoke collecting plate 5 exists as the lower panel. In the second state, the upper end of the smoke collecting plate 5 abuts against the upper panel 13 to form the smoke collecting cavity between the smoke collecting plate 5 and the upper panel 13; that is, the upper end of the smoke collecting plate 5 moves up to the upper panel 13, and the position of the smoke collecting plate 5 is overall improved, which can reduce the occupation of the user's operation space by the smoke collecting plate 5. It is worth mentioning that compared with the technical solution of opening a downward air inlet on the lower surface of a flat smoke collecting hood in the related art, in the present utility model, the nearly "7" shaped smoke collecting hood 11 will inevitably occupy the user's cooking operation space. Thus, there is a stronger need for the smoke collecting plate 5 not to further occupy the user's cooking operation space in the second state. Optionally, in the second state, the upper end of the smoke collecting plate 5 abuts against the upper end of the upper panel 13 to maximize the position of the smoke collecting plate 5 in the second state, thereby minimizing the occupation of the cooking operation space by the smoke collecting plate 5.

[0055] In an embodiment, referring to Figure 3 and Figure 4, the driving mechanism 6 includes a driver 61, a driving arm 62, and a first driven arm 631. The driver 61 is disposed inside the housing 1. The output shaft of the driver 61 is connected to the first end of the driving arm 62 to drive the driving arm 62 to rotate. The second end of the driving arm 62 is rotatably connected to the smoke collecting plate 5. The first end of the first driven arm 631 is rotatably connected inside the housing 1, and the second end of the first driven arm 631 is rotatably connected to the smoke collecting plate 5. Without loss of generality, in this embodiment, the connection position of the first driven arm 631 and the smoke collecting plate 5 is disposed closer to the upper end of the smoke collecting plate 5 than the connection position of the driving arm 62 and the smoke collecting plate 5. Generally, the connection position of the driving arm 62 and the smoke collecting plate 5 is disposed close to the lower end of the smoke collecting plate 5, and the connection position of the first driven arm 631 and the smoke collecting plate 5 is disposed close to the upper end of the smoke collecting plate 5. During the process of the driver 61 driving the driving arm 62 to rotate through its output shaft, the first driven arm 631 can upwardly pull the upper end of the smoke collecting plate 5, so that on the one hand, the smoke collecting plate 5 undergoes an overall upward displacement, thereby increasing the cooking operation space of the user and improving the user experience, and on the other hand, it can also make the downward-opening angle formed by the smoke collecting plate 5 and the second end of the driving arm 62 smaller, reducing the outward warping degree of the lower end of the smoke collecting plate 5, thereby enhancing the smoke collecting effect of the smoke collecting plate 5, further improving the smoke extraction effect of the range hood, and can reduce the outward warping distance of the lower end of the smoke collecting plate 5, making the lower end of the smoke collecting plate 5 farther from the user performing the cooking operation, avoiding affecting the cooking vision of the user, increasing the operation space of the user, and improving the user experience. In this embodiment, generally, the length of the first driven arm 631 is less than the length of the driving arm 62.

[0056] In this embodiment, the downward-opening angle formed by the smoke collecting plate 5 and the second end of the driving arm 62 in the second state is α2, and the downward-opening angle formed by the smoke collecting plate 5 and the second end of the driving arm 62 in the first state is α1, and α2 is less than α1. Without loss of generality, taking Figure 1 and Figure 2 as an example, Figure 1 the angle α2 formed by the smoke collecting plate 5 and the second end of the driving arm 62 shown in Figure 2 in the second state is close to a right angle, that is, its angle value is close to 90°,

[0057] In this embodiment, the connection position of the first driven arm 631 and the smoke collecting plate 5 is arranged closer to the upper end of the smoke collecting plate 5 than the connection position of the driving arm 62 and the smoke collecting plate 5. However, this design is not limited thereto. In some other embodiments, when the connection position of the driving arm 62 and the smoke collecting plate 5 is close to the upper end of the smoke collecting plate 5, the connection position of the first driven arm and the smoke collecting plate 5 can also be arranged closer to the lower end of the smoke collecting plate 5 relative to the connection position of the driving arm 62 and the smoke collecting plate 5. In this way, during the process of the driver 61 driving the driving arm 62 to rotate through its output shaft, the first driven arm can pull down the lower end of the smoke collecting plate 5, so that the downward-opening angle formed by the smoke collecting plate 5 and the second end of the driving arm 62 becomes smaller, reducing the outward warping degree of the lower end of the smoke collecting plate 5, improving the smoke collecting effect of the smoke collecting plate 5, and enhancing the smoke extraction effect of the range hood. In this embodiment, generally, the length of the first driven arm is greater than the length of the driving arm 62.

[0058] In addition, in some other embodiments, the upward-pulling first driven arm or the downward-pulling first driven arm may not be provided. In this case, the driving mechanism 6 includes a driver 61, a driving arm 62, and a deflection motor. The driver 61 is arranged in the housing 1. The output shaft of the driver 61 is connected to the first end of the driving arm 62 to drive the driving arm 62 to rotate. The deflection motor is fixedly arranged at the second end of the driving arm 62. The output shaft of the deflection motor is connected to the smoke collecting plate 5 to drive the smoke collecting plate 5 to deflect vertically. In this way, by actively driving the smoke collecting plate 5 to deflect vertically, it is also possible to make the downward-opening angle formed by the smoke collecting plate 5 and the second end of the driving arm 62 smaller, reduce the outward warping degree of the lower end of the smoke collecting plate 5, improve the smoke collecting effect of the smoke collecting plate 5, and enhance the smoke extraction effect of the range hood.

[0059] For the embodiments provided with the first driven arm 631, further, referring to Figure 3 and Figure 4 , the driving mechanism 6 further includes a second driven arm 632 and a transmission rod 633. The second driven arm 632 and the first driven arm 631 are oppositely arranged on the transverse two sides of the smoke collecting plate 5. The first end of the second driven arm 632 is rotatably connected in the housing 1. The second end of the second driven arm 632 is rotatably connected to the smoke collecting plate 5. One end of the transmission rod 633 is fixedly connected to the first end of the first driven arm 631, and the other end is fixedly connected to the first end of the second driven arm 632, so that the rotation of the second driven arm 632 is synchronized with that of the first driven arm 631, so that the two transverse sides of the smoke collecting plate 5 can rotate and open and close synchronously, and the opening and closing process is smoother, reducing the possibility of deformation of the smoke collecting plate 5.

[0060] Further, referring to Figure 3 , the driving mechanism 6 further includes a third driven arm 64. The third driven arm 64 and the driving arm 62 are oppositely arranged on the transverse two sides of the smoke collecting plate 5. The first end of the third driven arm 64 is rotatably connected inside the housing 1, and the second end of the third driven arm 64 is rotatably connected to the smoke collecting plate 5. In this way, the opening and closing process of the smoke collecting plate 5 is smoother, and the possibility of deformation of the smoke collecting plate 5 is reduced. Optionally, the structure of the third driven arm 64 is the same as that of the driving arm 62 to reduce the types of materials to be prepared, which is beneficial to the production of the product.

[0061] Further, referring to Figure 1 , both the driving arm 62 and the first driven arm 631 are bent, and the opening formed by the bending is upward in the second state. In this way, it is convenient to move the upper end of the smoke collecting plate 5 above the upper side of the smoke inlet 100, the overall position of the smoke collecting plate 5 is improved, and the occupation of the operation space of the user by the smoke collecting plate 5 is reduced. Similarly, both the third driven arm 64 and the second driven arm 632 are also bent.

[0062] Further, the driving arm 62 and the first driven arm 631 are arranged on the side of the smoke collecting plate 5 in the transverse direction. The driving arm 62 and / or the first driven arm 631 are flat-shaped to improve the ability of the driving arm 62 and / or the first driven arm 631 to limit the leakage of oil fume from the side of the smoke collecting cavity, thereby further improving the oil fume suction effect of the range hood. Optionally, the driving arm 62 and / or the first driven arm 631 are plate-shaped. The plate shape is relatively flat, which is beneficial to the realization of the smoke blocking effect. Similarly, the third driven arm 64 and / or the second driven arm 632 are also flat-shaped.

[0063] Optionally, referring to Figures 1 to 5, in the second state, the driving arm 62 and the first driven arm 631 are spliced in the vertical direction. It should be noted that the so-called splicing here can be that the lower edge of one is spliced with the upper edge of the other; it can also be that the upper edge of one is higher than the upper edge of the other, and the lower edge of the former extends to the middle position of the other. It can be understood that splicing is beneficial to increasing the smoke-blocking ability on the side of the smoke collection cavity, thereby further reducing the oil fume leaking from the side of the smoke collection cavity and improving the oil fume extraction effect of the range hood. Similarly, in the second state, the third driven arm 64 and the second driven arm 632 are also spliced in the vertical direction. Further optionally, in the second state, at least part of the first driven arm 631 and the driving arm 62 are stacked to avoid the existence of a splicing gap between the two, so as to reduce oil fume leakage. Even more optionally, a splicing sink 621 is provided on the side surface of the driving arm 62. In the second state, the lower edge of the first driven arm 631 overlaps the splicing sink 621, so that the splicing and sealing effect is better.

[0064] Further, referring to Figures 1 to 4 , the range hood further includes a first mounting seat 71 connected to the housing 1. The driver 61 is connected to the first mounting seat 71, and the first end of the first driven arm 631 is rotatably connected to the first mounting seat 71; it can be understood that by adding the first mounting seat 71, the connection between the driving mechanism 6 and the housing 1 can be more conveniently realized. Optionally, the first mounting seat 71 is configured as a sheet metal stamping part. The sheet metal stamping part has high strength, which is beneficial to providing stable support for the driving mechanism 6, and the sheet metal process is beneficial to the mass preparation of products; however, this design is not limited thereto. In other embodiments, the first mounting seat 71 can also be configured as a casting part, etc.

[0065] Further, referring to Figures 3 to 6 , the range hood further includes a second mounting seat 8 connected to the smoke collection plate 5. The second end of the driving arm 62 and the second end of the first driven arm 631 are both rotatably connected to the second mounting seat 8; it can be understood that by adding the second mounting seat 8, the connection between the driving mechanism 6 and the smoke collection plate 5 can be more conveniently realized. Optionally, the second mounting seat 8 includes a first bracket 81 and a second bracket 82 connected to each other, and the first bracket 81 and the second bracket 82 are bent and connected. The first bracket 81 is attached to the smoke collection plate 5 for installation. The large area of the attached installation can improve the installation stability; the second end of the driving arm 62 and the second end of the first driven arm 631 are both rotatably connected to the second bracket 82; generally, the second bracket 82 is perpendicular or nearly perpendicular to the first bracket 81.

[0066] Optionally, the range hood further includes a mounting cover plate 9 disposed on the back surface of the smoke collecting plate 5. A slot 91 with a lateral opening is formed between the mounting cover plate 9 and the smoke collecting plate 5. The first bracket 81 is inserted into the slot 91 for installation with the smoke collecting plate 5. However, this design is not limited thereto. In other embodiments, the first bracket 81 can also be, but not limited to, welded or screwed to the smoke collecting plate 5.

[0067] Optionally, the second bracket 82 is detachably connected to the first bracket 81. In this way, the first bracket 81 can be first installed on the smoke collecting plate 5, and the second bracket 82 can be installed on the driving mechanism 6. Then, the smoke collecting plate 5 can be installed on the second bracket 82 through the first bracket 81, so as to be connected to the driving mechanism 6. In this way, the assembly is more convenient. Further optionally, one end of the first bracket 81 is bent to be provided with a mounting flange 811, and the second bracket 82 is detachably installed on the mounting flange 811. Optionally, one of the mounting flange 811 and the second bracket 82 is provided with a positioning rib 812, and the other is provided with a positioning hole 821. Through the cooperation of the positioning rib 812 and the positioning hole 821, the pre-positioning of the first bracket 81 and the second bracket 82 is realized, and then the mounting flange 811 and the second bracket 82 are fixed by fasteners, which can be screws, rivets, etc.

[0068] Furthermore, referring to Figure 1 and Figure 9 , the range hood further includes a partition member 72 disposed in the housing 1. The partition member 72 divides the inner cavity of the housing 1 into a smoke extraction channel 10 and an installation cavity 60. The smoke extraction channel 10 is communicated with the smoke inlet 100, and the driving mechanism 6 is installed in the installation cavity 60. With such a setting, since the installation cavity 60 and the smoke extraction channel 10 are independent of each other, the oil fume will not enter the installation cavity 60, so that the oil fume can be prevented from accumulating on the driving mechanism 6, enabling the driving mechanism 6 to be used normally for a long time and improving the service life of the driving mechanism 6. However, this design is not limited thereto. In other embodiments, the partition member 72 may not be provided.

[0069] Optionally, the housing 1 includes a smoke hood 11 and a fan hood 12 disposed on the upper side of the smoke hood 11, and a smoke outlet 110 is disposed between the fan hood 12 and the smoke hood 11. Two partitions 72 are disposed relatively inside the smoke hood 11, and the two partitions 72 are disposed on opposite sides of the smoke outlet 110, and the width between the two partitions 72 is gradually reduced in the direction close to the smoke outlet 110, so that the partition 72 can guide the oil smoke airflow to the smoke outlet 110, thereby improving the smoothness of smoke exhaust, and at the same time avoiding the oil smoke airflow from forming vortices at the corners on both sides of the top of the smoke hood 11, thereby reducing noise. In this embodiment, the partition 72 is reused as a guide piece, which can save one part and make the product structure simpler.

[0070] Further, refer to Figures 1 to 7 The driver 61 is connected to a wire (not shown), and a wire mounting structure is provided on the driving arm 62. The wire is arranged on the wire mounting structure. The wire is fixed by the wire mounting structure, which can prevent the wire from being pulled or interfered during the opening and closing process of the cigarette collecting plate 5, reduce the risk of the wire breaking, and increase the service life of the product.

[0071] Furthermore, the wiring structure includes a wire box 73 extending along the driving arm 62, and the wires are passed through the wire box 73. In this way, the wires can be hidden in the wire box 73 to avoid oil smoke accumulation on the wires, thereby further improving the service life of the wires.

[0072] Further, the driving arm 62 includes an arm body 622 and a mounting portion 623 connected to the lower side of the arm body 622. The wire box 73 is provided with a wire groove 731 opening to one side. The mounting portion 623 covers the notch of the wire groove 731, and the wire is threaded through the wire groove 731. In this embodiment, the mounting portion 623 can provide support for the installation of the wire box 73, and the channel for the wire to pass through is formed by splicing the mounting portion 623 and the wire groove 731. After the wire can be conveniently inserted into the long notch of the wire groove 731, the wire box 73 can be connected and fixed to the mounting portion 623. In this way, it is beneficial to improve the production efficiency. Optionally, the thickness of the mounting portion 623 is thinner than that of the arm body 622 to form a positioning step 624 between the arm body 622 and the mounting portion 623. The wire box 73 abuts and is positioned at the positioning step 624. In this way, on the one hand, it is convenient to judge whether the wire box 73 is installed in place, and on the other hand, it can also reduce the protruding height of the wire box 73 relative to the arm body 622, making the two look more like an integral setting. In this embodiment, the driving arm 62 is provided with a mounting portion 623 on the lower side of the arm body 622 to provide support for the installation of the wire box 73. However, this design is not limited thereto. In other embodiments, the mounting portion 623 may not be provided, and the wire box may be directly spliced to the lower side of the driving arm. In this way, the wire box can also provide the ability to block smoke.

[0073] Further, the wire box 73 is detachably connected to the driving arm 62 to facilitate the maintenance of the wire. Optionally, the wire box 73 is provided with connecting lugs 732, and the connecting lugs 732 and the driving arm 62 are connected by fasteners. In this way, the connection reliability between the wire box 73 and the driving arm 62 can be improved. However, this design is not limited thereto. In other embodiments, the wire box 73 and the driving arm 62 may also but are not limited to be connected by a snap structure. Optionally, a plurality of connecting lugs 732 are provided at intervals along the extending direction of the wire box 73 to enable the wire box 73 to be well fixed at various positions in the length direction, reducing the probability of the end of the wire box 73 tilting up or the middle arching up.

[0074] Further, the range hood further includes a control panel (not shown) and a mounting cover plate 9. The control panel is installed on the back of the smoke collecting plate 5, and the mounting cover plate 9 covers the control panel. The wire is also connected to the control panel. In this way, the smoke collecting plate 5 not only functions to collect smoke, but can also be used as a display and control component. When the smoke collecting plate 5 is opened, it will be relatively close to the user, facilitating the user to control the range hood. In this embodiment, optionally, the smoke collecting plate 5 is configured as a glass panel so that the display and control components on the control panel can be clearly displayed. However, this design is not limited thereto. In other embodiments, the smoke collecting plate 5 can also be configured as other panels. In this case, the smoke collecting plate 5 usually needs to be provided with a window corresponding to the control panel so that the display and control components of the control panel can be exposed.

[0075] Optionally, the mounting cover plate 9 is provided with a wire passing opening 92 for the wire to pass through. The wire box 73 extends to the wire passing opening 92 and covers the wire passing opening 92, thus further preventing the wire passing opening 92 from being exposed. Further optionally, a butt-joint flange 93 is provided at the edge of the wire passing opening 92, and the butt-joint flange 93 abuts against the wire box 73 to facilitate sealing between the wire passing opening 92 and the wire box 73 and prevent oil fume from entering through the wire passing opening 92 and polluting the control panel.

[0076] In one embodiment, referring to Figure 8 and Figure 9 , the range hood further includes a flow splitting structure 2. The flow splitting structure 2 is disposed in the smoke suction channel 10 and is used to divide the smoke suction channel 10 into a left channel 10a and a right channel 10b. The flow splitting structure 2 is usually disposed close to the smoke inlet 100 to divide the smoke suction channel 10 into a left channel 10a and a right channel 10b inside the smoke inlet 100, thereby effectively reducing the eddy current caused by the mixing and collision of two streams of oil fume entering the smoke suction channel 10 from both sides of the smoke inlet 100, improving the smoothness of the oil fume passing through the smoke suction channel 10, thus enhancing the smoking effect of the range hood and reducing noise.

[0077] In one embodiment, the flow splitting structure 2 can be configured as a structure that is integrally fixed relative to the housing 1, that is, the flow splitting structure 2 can be a shaped structure fixed in the smoke suction channel 10. However, this design is not limited thereto. In other embodiments, the flow splitting structure 2 can also be configured as a structure that rotates at least partially relative to the housing 1 (see Figure 9 ) to adjust the sizes of the left channel 10a and the right channel 10b through the rotating part.

[0078] For the embodiment of the flow splitting structure 2 that rotates at least partially relative to the housing 1, referring to Figure 8 and Figure 9, the flow splitting structure 2 may include a rotating part 21 rotatably disposed in the oil fume suction channel 10 to adjust the sizes of the left channel 10a and the right channel 10b through the rotating part 21, so as to adjust the oil fume suction capabilities of the left channel 10a and the right channel 10b. It should be noted that the adjustment of the sizes of the left channel 10a and the right channel 10b here does not refer to the adjustment of the sizes at all positions in the left channel 10a and the right channel 10b, but refers to the adjustment of the sizes of the minimum connected cross-sections of the left and right channels and the right channel 10b. The minimum connected cross-section is the throat of the corresponding channel, and its size is directly proportional to the smoking capacity of the corresponding channel.

[0079] When the rotating part 21 rotates relative to the left channel 10a, the oil fume suction capacity of the left channel 10a can be reduced, and at the same time, the oil fume suction capacity of the right channel 10b can be increased. When the rotating part 21 rotates relative to the right channel 10b, the oil fume suction capacity of the right channel 10b can be reduced, and at the same time, the oil fume suction capacity of the left channel 10a can be increased. For a gas stove with a double burner, the user may only use one of the left and right burners for cooking, resulting in a large amount of oil fume generated under one of the left channel 10a and the right channel 10b, and a small amount of oil fume diffused under the other. Or when the user uses both the left and right burners for cooking at the same time, one is performing operations such as frying that generate a large amount of oil fume, and the other is performing operations such as simmering over a low heat that generate a small amount of oil fume, resulting in a large amount of oil fume generated under one of the left channel 10a and the right channel 10b, and a small amount of oil fume generated under the other. In this case, the rotating part 21 can be rotated to increase the channel corresponding to the side with a large amount of oil fume, and at the same time, reduce the channel corresponding to the side with a small amount of oil fume, so as to improve the oil fume suction capacity of the channel corresponding to the side with a large amount of oil fume, and at the same time, reduce the oil fume suction capacity of the channel corresponding to the side with a small amount of oil fume, thereby improving the oil fume suction effect of the range hood.

[0080] It is worth mentioning that the rotation control of the rotating part 21 can be manually controlled by the user according to the size of the oil fume, or the range hood can be automatically controlled by setting an oil fume monitoring device for detecting the size of the oil fume on the corresponding side and configuring a controller according to the detection result of the oil fume monitoring device.

[0081] In addition, in the present invention, the rotating part 21 can be directly rotatably connected to the housing 1, or can be indirectly rotatably connected to the housing 1.

[0082] For the embodiment indirectly connected to the housing 1, the flow splitting structure 2 further includes a fixing part 22 connected to the housing 1, and the rotating part 21 is rotatably connected to the fixing part 22 (see Figure 9) The fixing part 22 not only provides a mounting support for the rotation of the rotating part 21, but also has the function of separating the oil fume passage 10, so as to more effectively reduce the eddy current caused by the mixing and collision of two oil fume flows respectively entering the oil fume passage 10 from both sides of the smoke inlet 100, and better improve the smoothness of the oil fume passing through the oil fume passage 10. In addition, the space inside the fixing part 22 can also be used to install a driving device for driving the rotation of the rotating part 21, so as to isolate the oil fume from the driving device through the housing of the fixing part 22, avoid the deposition of oil fume on the driving device, and thus extend the service life of the driving device.

[0083] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields shall be included in the patent protection scope of the present invention.

Claims

1. An oil fume suction machine, characterized in that, Comprising: A housing, including a smoke collecting hood, and the smoke collecting hood includes a back plate and a deflector opposite to the back plate; In the direction from the back to the front, the deflector is inclined upward, and the deflector is provided with a smoke inlet; A smoke gathering plate, having a first state of closing the smoke inlet and a second state of opening the smoke inlet; And A driving mechanism, arranged in the housing, for driving the smoke gathering plate to switch between the first state and the second state, and during the process of switching from the first state to the second state, the driving mechanism drives the smoke gathering plate to perform a combined movement of rotation and upward movement, so that in the second state, at least a part of the smoke gathering plate is located above the smoke inlet and jointly defines a smoke gathering cavity communicating with the smoke inlet with the deflector.

2. The range hood according to claim 1, wherein, The included angle range between the deflector and the back plate is 10° to 30°.

3. The range hood according to claim 1, wherein, The range hood further includes an upper panel arranged on the deflector and above the smoke inlet; In the first state, the smoke gathering plate and the upper panel are joined together to jointly cover the deflector; in the second state, the upper end of the smoke gathering plate abuts against the upper panel.

4. The range hood according to claim 3, characterized in that, In the second state, the upper end of the smoke gathering plate abuts against the upper end of the upper panel.

5. The range hood according to claim 1, wherein, The driving mechanism includes a driver, a driving arm and a first driven arm. The driver is arranged in the housing, and the output shaft of the driver is connected to the first end of the driving arm to drive the driving arm to rotate. The second end of the driving arm is rotatably connected to the smoke gathering plate. The first end of the first driven arm is rotatably connected in the housing, and the second end of the first driven arm is rotatably connected to the smoke gathering plate.

6. The range hood according to claim 5, wherein, The driving mechanism further includes a second driven arm and a transmission rod. The second driven arm and the first driven arm are arranged on the transverse two sides of the smoke gathering plate relatively. The first end of the second driven arm is rotatably connected in the housing, and the second end of the second driven arm is rotatably connected to the smoke gathering plate. One end of the transmission rod is fixedly connected to the first end of the first driven arm, and the other end is fixedly connected to the first end of the second driven arm, so that the second driven arm and the first driven arm rotate synchronously; and / or The driving mechanism further includes a third driven arm. The third driven arm and the driving arm are arranged on the transverse two sides of the smoke gathering plate relatively. The first end of the third driven arm is rotatably connected in the housing, and the second end of the third driven arm is rotatably connected to the smoke gathering plate.

7. The range hood according to claim 5, characterized in that, Both the driving arm and the first driven arm are bent, and the opening formed by the bending is arranged upward in the second state.

8. The range hood according to claim 5, wherein The driving arm and the first driven arm are arranged close to one side of the smoke gathering plate in the transverse direction; The driving arm and / or the first driven arm are arranged in a flat shape; and / or In the second state, the driving arm and the first driven arm are spliced in the up-down direction.

9. The range hood according to claim 5, characterized in that, The range hood further includes a first mounting seat connected to the housing. The driver is connected to the first mounting seat, and the first end of the first driven arm is rotatably connected to the first mounting seat; and / or The range hood further includes a second mounting seat connected to the smoke collecting plate, and the second ends of the driving arm and the first driven arm are both rotatably connected to the second mounting seat.

10. The range hood according to claim 1, characterized in that, The driving mechanism includes a driver, a driving arm, and a deflection motor. The driver is disposed inside the housing. The output shaft of the driver is connected to the first end of the driving arm to drive the driving arm to rotate. The deflection motor is fixedly disposed at the second end of the driving arm, and the output shaft of the deflection motor is connected to the smoke collecting plate to drive the smoke collecting plate to deflect vertically.

11. The range hood according to any one of claims 1 to 10, characterized in that, The range hood further includes a partition member disposed inside the housing. The partition member divides the inner cavity of the housing into a smoke extraction channel and an installation cavity. The smoke extraction channel is communicated with the smoke inlet, and the driving mechanism is installed in the installation cavity.

12. The range hood according to claim 11, wherein, The housing includes a smoke collecting hood and a blower hood disposed above the smoke collecting hood. There is a smoke passing opening between the blower hood and the smoke collecting hood. Two partition members are relatively disposed inside the smoke collecting hood. The two partition members are respectively disposed on opposite sides of the smoke passing opening, and the width between the two partition members gradually decreases in the direction close to the smoke passing opening, so that the partition members can guide the oil fume airflow to the smoke passing opening.

13. The range hood according to any one of claims 1 to 10, characterized in that, The driver is connected with a wire, and a wire mounting structure is provided on the driving arm. The wire is disposed in the wire mounting structure.

14. The range hood according to claim 13, characterized in that, The wire mounting structure includes a wire box extending along the driving arm, and the wire passes through the wire box.

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