Range hood

Abstract

The utility model discloses a range hood which comprises a smoke collecting hood and a fan frame arranged above the smoke collecting hood, a decorative cover is arranged on the outer side of the fan frame, the range hood further comprises a refrigeration assembly arranged in the fan frame, and the refrigeration assembly comprises a cold air dissipating fan and an air guide pipe assembly which are both arranged in the fan frame. The air cooling fan comprises an air cooling fan output end, the air guide pipe assembly comprises an air guide pipe body and an air outlet piece, the air guide pipe body is directly or indirectly connected with the air cooling fan output end, the air outlet piece is correspondingly arranged at the bottom of the decoration cover, and an air outlet corresponding to the air outlet piece is formed in the decoration cover. The range hood further comprises a panel capable of opening or closing the air outlet. Compared with the prior art, the air conditioner has the advantages that the position of the air outlet is lower, the cold air experience of a user is better, and the panel arranged at the air outlet realizes the opening and closing functions of the air outlet and can also play a decorative role.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil fume purification device, especially an oil fume extractor. BACKGROUND

[0002] The oil fume extractor has become one of the kitchen household electrical appliances in modern family.

[0003] Such as the Chinese utility model patent application No. 202320060059.4 discloses a refrigeration type oil fume extractor, comprising an oil fume suction module, an air conditioner outdoor unit module and an air conditioner indoor unit module, the oil fume suction module comprises a fan frame and an oil fume fan arranged in the fan frame, the air conditioner indoor unit module comprises an indoor unit shell and an evaporator arranged in the indoor unit shell, the air conditioner indoor unit module is arranged on the top of the fan frame, an air outlet fan is arranged in the indoor unit shell, and an air inlet and a cold air outlet are formed in the indoor unit shell.

[0004] The cold air outlet of the above-mentioned patent is arranged above the fan frame, and due to the high position of the cold air outlet and the outflow angle, when a user stands in front of the oil fume extractor, the cold air cannot blow to the user's head, which affects the comfort of the user, and the cold air effect is poor. Especially for users with low height, the cold air experience effect is poorer.

[0005] The refrigeration type oil fume extractor adopts the upper air outlet mode, and the cold air supply distance is far, and for the small refrigeration oil fume extractor, the user perceives that the air outlet temperature is high and has no cool feeling. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problems of the prior art, provides an oil fume extractor, so that the cold air outlet is lower, and the user's cold air experience is better.

[0007] The utility model adopts the technical scheme that an oil fume extractor comprises a smoke collecting hood and a fan frame arranged above the smoke collecting hood, the outer side of the fan frame is provided with a decorative cover, the oil fume extractor further comprises a refrigeration assembly arranged in the fan frame, the refrigeration assembly comprises a cold air fan and a wind guide pipe assembly, which are both arranged in the fan frame, the cold air fan comprises a cold air fan output end, the wind guide pipe assembly comprises a wind guide pipe body and an air outlet piece, the wind guide pipe body is directly or indirectly connected with the cold air fan output end, characterized in that the air outlet piece is correspondingly arranged at the bottom position of the decorative cover, the decorative cover is provided with an air outlet opening corresponding to the air outlet piece, and the oil fume extractor further comprises a panel capable of opening or closing the air outlet opening.

[0008] By setting the air outlet at the bottom of the decorative cover, i.e. the air outlet is located at the upper portion of the smoke hood, the air outlet is close to the user, the air supply distance of the cold air is small, and even if the refrigeration assembly has a small cooling capacity, the user can also have a better cold air experience. By setting the panel, the opening and closing functions of the air outlet are realized, and in addition, the panel also has a decorative effect on the extractor hood, making the appearance more beautiful.

[0009] In order to realize the opening and closing of the air outlet, the panel is located at the air outlet when the panel closes the air outlet, and the panel is located in front of the air outlet and above the air outlet when the panel opens the air outlet.

[0010] In order to facilitate automatic driving of the panel, the extractor hood further comprises a movement mechanism capable of driving the panel to move.

[0011] Further, the movement mechanism comprises:

[0012] A linear drive module is arranged on the inner side of the fan frame, and the linear drive module comprises a linear drive module output end capable of moving up and down;

[0013] A first support is rotatably connected with the linear drive module output end and the rotation axis extends in the left-right direction;

[0014] A second support, on which the panel is arranged;

[0015] A guide rod is arranged on the second support; and

[0016] A third support is arranged on the fan frame, and the third support is formed with a guide groove in sliding cooperation with the guide rod, and the guide groove comprises a first guide section extending longitudinally and a second guide section extending downwardly and gradually backward from the bottom of the first guide section.

[0017] Therefore, the panel can move upward and forward when opening the air outlet, and move downward and backward when closing the air outlet.

[0018] Preferably, in order to balance the panel when moving, the first support is in inverted U shape, and the top of the first support is rotatably connected with the linear drive module output end when moving up and down; the second support has two, and the two second supports are arranged on the left and right sides of the first support respectively, and the third support also has two, and each third support corresponds to a second support.

[0019] To facilitate the installation of the linear drive module and ensure that the panel remains vertical during movement and does not interfere with the fan frame due to wall flipping, a panel back plate is fixedly installed inside the fan frame. The linear drive module is rotatably mounted on the panel back plate with its rotation axis extending in the left-right direction. A connector is provided between the output end of the linear drive module and the top of the first bracket. The connector is fixed to the first bracket, while the output end of the linear drive module is rotatably connected to the connector with its rotation axis extending in the left-right direction.

[0020] In order to guide the cold airflow, the air outlet is provided with a flap that can adjust the direction of the output airflow. The range hood also includes a swing mechanism that can drive the flap to swing. The swing mechanism includes a rotating shaft, a gear and a rack. The rack is longitudinally arranged on the first bracket and can move up and down with the first bracket. The flap and the gear are connected by a rotating shaft. The rotation axes of the rotating shaft and the gear are both in the left and right direction. The gear meshes with the rack so that the rotating shaft can rotate around its own axis.

[0021] In order to guide the cold airflow, the air outlet is equipped with a flap that can adjust the direction of the output airflow, and the range hood also includes a swing mechanism that can drive the flap to swing.

[0022] In order to achieve uniform flow of cold air before entering the air outlet, the inner side of the air duct body is provided with a flow equalization structure.

[0023] Compared with existing technologies, the advantages of this utility model are as follows: By placing the air outlet at the bottom of the decorative cover, that is, at the top of the smoke collection hood, the air outlet is close to the user, and the air delivery distance of the cold air is short. Even with a small cooling capacity refrigeration component, the user can still have a good cold air experience. Furthermore, the addition of a panel allows for the opening and closing of the air outlet, and the panel also has a decorative effect on the range hood, making its appearance more aesthetically pleasing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the range hood panel with the air outlet closed according to an embodiment of the present utility model;

[0025] Figure 2 This is a front sectional view of the panel of the range hood of this utility model when the air outlet is closed;

[0026] Figure 3 This is a schematic diagram of the motion mechanism, air duct assembly, and panel of the range hood when the air outlet is closed, according to an embodiment of the present utility model.

[0027] Figure 4 This is a schematic diagram of the motion mechanism and air duct assembly of the range hood panel when the air outlet is closed, according to an embodiment of the present utility model.

[0028] Figure 5 Figure 2 is a schematic view of a panel, a panel backboard and a movement mechanism of the range hood according to the embodiment of the present application when the panel closes the air outlet;

[0029] Figure 6 Figure 3 is a schematic view of the range hood according to the embodiment of the present application when the panel opens the air outlet;

[0030] Figure 7 Figure 4 is a schematic view of a movement mechanism, a wind guide pipe assembly and a panel of the range hood according to the embodiment of the present application when the panel opens the air outlet;

[0031] Figure 8 Figure 5 is a schematic view of the movement mechanism and the wind guide pipe assembly of the range hood according to the embodiment of the present application when the panel opens the air outlet;

[0032] Figure 9 Figure 6 is an exploded view of part of the range hood according to the embodiment of the present application;

[0033] Figure 10 Figure 7 is a schematic view of a flow equalizing structure of the wind guide pipe assembly of the range hood according to the embodiment of the present application. DETAILED DESCRIPTION

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] Referring to Figure 1 , Figure 2 and Figure 6 , a range hood comprises a smoke collecting cover 1 and a fan frame 2 arranged above the smoke collecting cover 1, and a decorative cover 3 arranged on the outer side of the fan frame 2. The range hood further comprises a refrigeration assembly arranged in the fan frame 2.

[0036] Referring to Figure 2 , the refrigeration assembly comprises a cooling fan 41 and a wind guide pipe assembly 42, which are both arranged in the fan frame 2. The cooling fan 41 comprises a cooling fan output end 411, and the wind guide pipe assembly 42 comprises a wind guide pipe body 4211 and an air outlet piece 422. The wind guide pipe body 4211 is directly or indirectly connected with the cooling fan output end 411. In this embodiment, the wind guide pipe body 4211 is connected with the cooling fan output end 411 through an air outlet cover 45. The air outlet piece 422 is arranged at the bottom position of the decorative cover 3, and the decorative cover 3 is provided with an air outlet 311 corresponding to the arrangement of the air outlet piece 422.

[0037] By arranging the air outlet 311 at the bottom position of the decorative cover 3 (the upper part of the smoke collecting cover 1), the air outlet 311 is close to the user, and the air supply distance of the cold air is small. Even if the refrigeration assembly has a small cooling capacity, the user can also have a better cold air experience.

[0038] When the whole machine is installed, the air outlet 311 is located at the bottom of the cabinet, and the integrity of the cabinet door is not damaged during installation. The air outlet 311 is designed in an integrated manner with the range hood, and is easy to install.

[0039] Referring to Figure 1 and Figure 6 , the range hood further comprises a panel 5 capable of opening or closing the air outlet 311. The panel 5 can be moved upwards towards the front side to open the air outlet 31, and can be moved downwards towards the rear side to close the air outlet 31. By providing the liftable panel 5, the opening and closing functions of the air outlet 31 are realized, and in addition, the panel 5 also has a decorative effect on the range hood, making the appearance more beautiful.

[0040] Referring to Figures 2-9 , the range hood further comprises a movement mechanism capable of driving the panel 5 to move. The movement mechanism comprises a first bracket 61, a linear drive module 62, a second bracket 63, a guide rod 64 and a third bracket 65. The linear drive module 62 is arranged on the inner side of the fan frame 2. In this embodiment, the linear drive module 62 is an electric push rod. In order to facilitate the installation of the linear drive module 62, a panel back plate 51 is fixedly arranged in the fan frame 2, and the linear drive module 62 is rotatably mounted on the panel back plate 51, and the rotation axis extends in the left-right direction. The linear drive module 62 comprises a linear drive module output end 621 capable of moving up and down, and the top of the first bracket 61 is rotatably connected with the linear drive module output end 621. For this purpose, a connecting piece 622 is arranged between the linear drive module output end 621 and the top of the first bracket 61, the connecting piece 622 is fixed with the first bracket 61, and the linear drive module output end 621 is rotatably connected with the connecting piece 622, and the rotation axis extends in the left-right direction.

[0041] The first bracket 61 is preferably inverted U-shaped, and the second bracket 63 can have two, which are fixedly arranged on the left and right sides of the first bracket 61 respectively. The panel 5 is arranged on the second bracket 63, and the panel 5 and the second bracket 63 can be fixed by adhesive. The second bracket 63 is located at the rear side of the panel 5, and in order to avoid interference with the panel back plate 51, the second bracket 63 is U-shaped, and the panel back plate 51 corresponds to the opening of the U-shaped, or the bottom end of the panel back plate 51 can be high enough to avoid interference.

[0042] The third support 65 can also have two, one for each second support 63, and be located on the outer side of the corresponding second support 63 in the left-right direction (left side more left, right side more right). The third support 65 can be fixed directly or indirectly to the fan frame 2, and in this embodiment, it can be fixed to the panel back plate 51, which can have a flange at the corresponding position. The two second supports 63 each have a guide rod 64 extending in the direction of the corresponding third support 65, and the two third supports 65 each have a guide groove that guides the corresponding guide rod 64. The guide groove includes a first guide section 6511 extending longitudinally and a second guide section 6512 extending downward from the bottom of the first guide section 6511 toward the rear.

[0043] The guide rod 64 and the guide groove restrict the movement trajectory and direction of the panel 5. When the guide rod 64 moves up in the guide groove, the panel 5 can move upward and open the air outlet 31. When the guide rod 64 moves down in the guide groove, the panel 5 can move downward and close the air outlet 31.

[0044] When the panel 5 closes the air outlet 31, it is located below the panel back plate 51. When it is necessary to drive the panel 5 to open, the linear drive module output end 621 of the linear drive module 62 retracts upward, the guide rod 64 moves upward, and the panel 5 is thereby driven to move upward and forward, thereby opening the air outlet 31. In this process, because the front and rear positions of the first support 61 change, the linear drive module 62 as a whole rotates relative to the panel back plate 51, and the linear drive module output end 621 rotates relative to the connecting piece 622, so as to avoid rotation of the first support 61, thereby keeping the panel 5 vertical during movement.

[0045] Alternatively, the panel 5 can be located inside the fan frame 2 and open and close the air outlet 31 by moving up and down.

[0046] The air outlet 422 is provided with a swing page 43 that can adjust the direction of the output airflow. The range hood also includes a swing mechanism that can drive the swing page 43 to swing. The swing mechanism includes a rotating shaft 441, a gear 442, and a rack 443. The rack 443 is longitudinally arranged on the first support 61 and can move up and down with the first support 61. The swing page 43 is connected to the gear 442 through the rotating shaft 441, and the rotating shaft 441 and the gear 442 have the same left-right direction as their rotation axes. The gear 442 is engaged with the rack 443 to enable the rotating shaft 441 to rotate about its own axis. The swing page 43 can guide the cold airflow to avoid the cold airflow moving along the smoke deflector of the range hood, improve the influence of the cold airflow on the outflow field of the range hood, and improve the smoke suction effect of the range hood. When the refrigeration assembly is turned off, the swing page 43 is retracted into the air outlet 422.

[0047] The overturning movement of the swing page 43 is driven by the gear and rack transmission mechanism and the linear driving module 62, avoiding the problems of high cost and high maintenance rate caused by using a separate stepping motor to drive the swing page 43, and also realizing the dual-purpose of the linear driving module 62. Of course, the swing page 43 can also be provided with an independent driving mechanism.

[0048] Referring to Figure 10 The air guide pipe body 421 is in an arc shape as a whole, and the inner side of the air guide pipe body 421 is provided with a flow uniformizing structure 423. An arc-shaped air supply air duct is formed in the air guide pipe body 421, and the flow uniformizing structure 423 is arranged to make the cold air uniformly distributed before entering the air outlet piece 422.

Claims

1. A range hood, comprising a hood (1) and a fan frame (2) arranged above the hood (1), an outer side of the fan frame (2) being provided with a decorative cover (3), the range hood further comprising a refrigeration assembly arranged in the fan frame (2), the refrigeration assembly comprising a cooling fan (41) and a duct assembly (42) both arranged in the fan frame (2), the cooling fan (41) comprising a cooling fan output end (411), the duct assembly (42) comprising a duct body (421) and an air outlet (422), the duct body (421) being directly or indirectly connected with the cooling fan output end (411), characterized in that: The air outlet part (422) is arranged at the bottom of the decorative cover (3), the decorative cover (3) is provided with an air outlet (31) corresponding to the air outlet part (422), and the range hood further comprises a panel (5) capable of opening or closing the air outlet (31).

2. The hood according to claim 1, characterized in that: When the panel (5) closes the air outlet (31), the panel (5) is located at the air outlet (31), and when the panel (5) opens the air outlet (31), the panel (5) is located in front of the air outlet (31) and above the air outlet (31).

3. The hood according to claim 2, characterized in that: The range hood further comprises a movement mechanism capable of driving the panel (5) to move.

4. The hood according to claim 3, characterized in that: The movement mechanism comprises: a linear drive module (62) arranged on the inner side of the fan frame (2), the linear drive module (62) comprising a linear drive module output end (621) capable of moving up and down; a first support (61) rotatably connected with the linear drive module output end (621) and having an axis of rotation extending in the left-right direction; a second support (63) on which the panel (5) is arranged; a guide rod (64) arranged on the second support (63); and a third support (65) arranged on the fan frame (2), the third support (65) being formed with a guide groove in sliding fit with the guide rod (64), the guide groove comprising a first guide section (6511) extending longitudinally and a second guide section (6512) extending downwardly and gradually backward from the bottom of the first guide section (6511).

5. The hood according to claim 4, characterized in that: The first support (61) is in inverted U shape, the top of the first support (61) is rotatably connected with the linear drive module output end (621) for moving up and down; the second support (63) has two, the two second supports (63) are arranged on the left and right sides of the first support (61) respectively, and the third support (65) also has two, each third support (65) corresponding to one second support (63).

6. The hood according to claim 4, characterized in that: The fan frame (2) is fixedly provided with a panel back plate (51), the linear drive module (62) is rotatably mounted on the panel back plate (51) and has an axis of rotation extending in the left-right direction, a connecting piece (622) is arranged between the linear drive module output end (621) and the top of the first support (61), the connecting piece (622) is fixed with the first support (61), and the linear drive module output end (621) is rotatably connected with the connecting piece (622) and has an axis of rotation extending in the left-right direction.

7. The hood according to claim 4, characterized in that: The air outlet piece (422) is provided with a swing page (43) capable of adjusting the output airflow direction, and the range hood further comprises a swing mechanism capable of driving the swing page (43) to swing, the swing mechanism comprises a rotating shaft (441), a gear (442) and a rack (443), the rack (443) is longitudinally arranged on the first support (61) and can move up and down along with the first support, the swing page (43) is connected with the gear (442) through the rotating shaft (441), the rotating shaft (441) and the gear (442) are both in the left-right direction, and the gear (442) is meshed with the rack (443) so that the rotating shaft (441) can rotate around its own axis.

8. The hood according to claim 1, characterized in that: The air outlet piece (422) is provided with a swing page (43) capable of adjusting the output airflow direction, and the range hood further comprises a swing mechanism capable of driving the swing page (43) to swing.

9. The hood according to any one of claims 1-8, characterized in that: The inner side of the air guide pipe body (421) is provided with a flow uniformizing structure (423).

Images