A ceiling-mounted range hood

Abstract

The present invention relates to the technical field of range hoods, and specifically discloses a ceiling range hood, which includes a range hood and several hanging rope assemblies. The range hood includes a housing and a fan, which is arranged in the housing. The fan includes a motor, a transmission assembly, and an impeller. The motor is fixed to the housing and is in transmission connection with the transmission assembly, which is in transmission connection with the impeller. The impeller is rotatably arranged in the housing, the rotation center of the impeller is along the vertical direction, and the rotation center line of the motor is perpendicular to the rotation center line of the impeller. Several hanging rope assemblies are provided, one end of each of the hanging rope assemblies is connected to the top of the housing, and the other ends of each of the hanging rope assemblies are used to be fixed to the ceiling. This arrangement makes the rotation center line of the motor parallel to the horizontal plane. When the motor is started, the force applied to the housing by the motor needs to overcome the weight of the range hood itself before the range hood can shake. Therefore, the force applied to the housing by the motor can be offset by the weight of the range hood itself to avoid shaking and enhance the stability of the range hood during operation.

Description

Technical Field

[0001] The present invention relates to the technical field of range hoods, and in particular to a ceiling range hood. Background Art

[0002] In order to adapt to the spatial layout of open kitchens, range hoods have gradually changed from wall-mounted to ceiling-mounted. Ceiling-mounted range hoods are usually hung below the ceiling. They absorb indoor smoke, filter and purify the smoke through built-in filters, and then return it to the room. They can be used for cooking outside the stove, such as frying, grilling or hot pot.

[0003] However, the ceiling range hoods in the related art are usually fixed to the ceiling by hanging ropes or hard hanging parts. For the ceiling range hoods fixed to the ceiling by hard hanging parts, the fixing effect is relatively stable and not easy to shake. However, for the ceiling range hoods fixed by hanging ropes, the motor and impeller of the fan are usually coaxially arranged and both in the vertical direction. When the motor is started, the motor applies force to the shell, which can easily cause the range hood to shake, affecting the user experience. Summary of the Invention

[0004] The purpose of the present invention is to provide a ceiling range hood to solve the problem in the related art that the ceiling range hood hoisted by a hanging rope is prone to shaking when the fan is started.

[0005] The present invention provides a ceiling range hood, which comprises:

[0006] A range hood, comprising a housing and a fan, the fan being disposed within the housing and comprising a motor, a transmission assembly, and an impeller, the motor being fixed to the housing and being in transmission connection with the transmission assembly, the transmission assembly being in transmission connection with the impeller, the impeller being rotatably disposed within the housing, the impeller having a rotation center in a vertical direction, and a rotation centerline of the motor being perpendicular to a rotation centerline of the impeller;

[0007] A plurality of hanging rope assemblies, one end of each of the hanging rope assemblies is connected to the top end of the shell, and the other end of each of the hanging rope assemblies is used to be fixed to the ceiling.

[0008] As an optimal technical solution for ceiling range hoods, the transmission assembly includes an output gear fixed to the output shaft of the motor, and a ring gear fixed to the impeller, the output gear is meshed with the ring gear, and the number of teeth of the output gear is less than the number of teeth of the ring gear.

[0009] As a preferred technical solution for the ceiling range hood, the output gear is made of rubber, or the teeth of the output gear are covered with a first rubber layer;

[0010] The gear ring is made of rubber material, or the teeth of the gear ring are covered with a second rubber layer.

[0011] As an optimal technical solution for the ceiling range hood, the fan further includes a noise reduction cover, the noise reduction cover is provided on the impeller, and the transmission assembly and the motor are both located in the noise reduction cover.

[0012] As an optimal technical solution for the ceiling range hood, the ceiling range hood also includes a fixing seat and a bearing. The fixing seat is located in the noise reduction cover. The fixing seat, the noise reduction cover and the top of the shell are connected by a connecting piece. The bearing is respectively connected to the fixing seat and the impeller.

[0013] As an optimal technical solution for ceiling range hoods, the hanging rope assembly includes a hanging rope and a first vibration damper connected to the bottom end of the hanging rope, the top end of the hanging rope is used to be fixed to the ceiling, and the first vibration damper is fixedly connected to the top end of the shell.

[0014] As an optimal technical solution for the ceiling range hood, the number of the hanging rope assemblies is not less than three, and the hanging rope assemblies are evenly distributed along the circumferential direction of the impeller.

[0015] As an optimal technical solution for the ceiling range hood, the ceiling range hood includes two fans, both of which are arranged in the housing, the impellers of the two fans rotate in opposite directions, and the air suction directions of the two fans are the same.

[0016] As a preferred technical solution for the ceiling range hood, the rotation directions of the motors of the two fans are opposite.

[0017] As a preferred technical solution for the ceiling range hood, the two fans are arranged in sequence along the vertical direction; or, the two fans are arranged side by side.

[0018] The ceiling range hood provided by the present invention has at least the following beneficial effects:

[0019] The ceiling range hood includes a range hood and several hanging rope assemblies. The range hood includes a housing and a fan. The fan is arranged in the housing. The fan includes a motor, a transmission assembly and an impeller. The motor is fixed to the housing and is in transmission connection with the transmission assembly. The transmission assembly is in transmission connection with the impeller. The impeller is rotatably arranged in the housing. The rotation center of the impeller is along the vertical direction. The rotation center line of the motor is perpendicular to the rotation center line of the impeller. Several hanging rope assemblies are provided. One end of each of the hanging rope assemblies is connected to the top of the housing, and the other end of each of the hanging rope assemblies is used to be fixed to the ceiling. This arrangement makes the rotation center line of the motor parallel to the horizontal plane. When the motor is started, the force applied to the housing by the motor needs to overcome the weight of the range hood itself before the range hood can shake. Therefore, the force applied to the housing by the motor can be offset by the weight of the range hood itself to avoid shaking and enhance the stability of the range hood during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a ceiling range hood according to an embodiment of the present invention;

[0021] Figure 2 The exploded view of the ceiling range hood in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 3 The exploded view of the ceiling range hood in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 4 A schematic structural diagram of a fan in an embodiment of the present invention;

[0024] Figure 5 The exploded view of the fan in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 6 The exploded view of the fan in the embodiment of the present invention is shown in FIG. Figure 2 .

[0026] In the picture:

[0027] 1. Range hood; 11. Housing; 111. Main housing; 112. Upper housing; 113. Lower housing; 12. Fan; 121. Motor; 122. Transmission assembly; 1221. Output gear; 1222. Ring gear; 123. Impeller; 124. Noise reduction cover;

[0028] 2. Lifting rope assembly; 21. Lifting rope; 22. First vibration damping member;

[0029] 3. Fixed seat;

[0030] 4. Bearings;

[0031] 5. Screws. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] This embodiment provides a ceiling range hood that can be used in an open kitchen space. It can draw in air from the indoor environment, purify the air, and then return it to the room for frying or grilling. In addition, the ceiling range hood is less likely to shake during use and has better stability.

[0037] For details, please refer to Figures 1 to 6The ceiling range hood includes a range hood 1. The range hood 1 includes a housing 11 and a fan 12. The fan 12 is disposed within the housing 11 and includes a motor 121, a transmission assembly 122, and an impeller 123. The motor 121 is fixed to the housing 11 and is in transmission connection with the transmission assembly 122. The transmission assembly 122 is in transmission connection with the impeller 123. The impeller 123 is rotatably disposed within the housing 11, with the center of rotation of the impeller 123 being vertical. When the motor 121 is started, the motor 121 drives the impeller 123 to rotate via the transmission assembly 122, causing the impeller 123 to generate a bottom-up suction force, thereby drawing indoor air into the range hood 1 for indoor air conditioning.

[0038] The housing 11 includes a centrally located annular main housing 111, an upper housing 112 connected to the top of the main housing 111, and a lower housing 113 connected to the bottom of the main housing 111. The lower housing 113 is provided with an air inlet, and the upper housing 112 is provided with an air outlet. An air duct connecting the air inlet and the air outlet is also provided within the housing 11. A fan 12 is disposed within the air duct, which may also be provided with a condensation screen and a multi-stage filter element. When the fan 12 is activated, indoor air enters the housing air duct through the air inlet and is transported along the air duct to the air outlet. In the air duct, the air passes through the condensation screen to remove water vapor from the air, and then passes through the multi-stage filter element to remove oil smoke and odor from the air, thereby purifying the indoor air.

[0039] One end of each of the hanging rope assemblies 2 is connected to the top of the housing 11, and the other ends of each of the hanging rope assemblies 2 are used to be fixed to the ceiling. This arrangement can make the hanging structure of the range hood 1 simple and beautiful, but it can also cause the range hood 1 to shake more easily. In this regard, in this embodiment, the rotation centerline of the motor 121 is perpendicular to the rotation centerline of the impeller 123, that is, the rotation centerline of the motor 121 is parallel to the horizontal plane. When the motor 121 is started, the force exerted by the motor 121 on the housing 11 can be offset by the gravity of the range hood 1 itself, so that the range hood 1 is not likely to shake. As for the impeller 123, since the impeller 123 is rotationally connected to the housing 11, the force exerted on the housing 11 by the impeller 123 during rotation is relatively small, and it is not likely to cause the range hood 1 to shake. The stability of the range hood 1 during operation can be significantly enhanced.

[0040] Optionally, the ceiling range hood may further include a counterweight fixed to the housing 11 to further enhance the overall stability of the range hood 1 .

[0041] Please refer to Figures 1 to 3In this embodiment, the hanging rope assembly 2 includes a hanging rope 21 and a first vibration damper 22 connected to the bottom end of the hanging rope 21. The top end of the hanging rope 21 is used to be fixed to the ceiling, and the first vibration damper 22 is fixedly connected to the top end of the shell 11. By setting the first vibration damper 22, shaking can be absorbed and the stability of the range hood 1 can be further enhanced. The first vibration damper 22 can be made of elastic materials such as rubber. Preferably, the number of hanging rope assemblies 2 is not less than three, and several hanging rope assemblies 2 are evenly distributed along the circumferential direction of the impeller 123. Such a setting can ensure that the overall force of the range hood 1 is balanced after hoisting, and further improve the stability of the range hood 1 when the fan 12 is started.

[0042] Optionally, the hoisting rope 21 further includes a second vibration damper (not shown in the drawings), which is disposed in the middle of the hoisting rope 21 or at the top of the hoisting rope 21. This can further improve the stability of the range hood 1 when the fan 12 is started. The second vibration damper can be made of an elastic material such as rubber.

[0043] Optionally, the motor 121 is a variable frequency motor 121, and the range hood 1 has low, medium, and high speed gears. When the range hood 1 is in low speed, the impeller 123 stabilizes at a speed of V1; when the range hood 1 is in medium speed, the impeller 123 stabilizes at a speed of V2; and when the range hood 1 is in high speed, the impeller 123 stabilizes at a speed of V3. V1 < V2 < V3. This configuration allows the range hood 1 to have a variety of suction powers to suit different applications. In other embodiments, the range hood hood 1 can be configured to have only one, two, or more gears, as needed.

[0044] Please refer to Figure 6 In this embodiment, the transmission assembly 122 includes an output gear 1221 fixed to the output shaft of the motor 121, and a ring gear 1222 fixed to the impeller 123. The output gear 1221 meshes with the ring gear 1222, and the number of teeth on the output gear 1221 is smaller than that on the ring gear 1222. This arrangement allows the output gear 1221 and the ring gear 1222 to work together to reduce the speed, thereby reducing the speed transmitted from the motor 121 to the impeller 123. This ensures a smooth start of the impeller 123 and further improves the stability of the range hood 1 during fan 12 startup. Preferably, the output gear 1221 is made of rubber, or its teeth are coated with a first rubber layer; the ring gear 1222 is also made of rubber, or its teeth are coated with a second rubber layer. This arrangement creates a flexible connection between the output gear 1221 and the ring gear 1222, effectively absorbing energy and further improving the stability of the range hood 1 during fan 12 startup. Illustratively, in this embodiment, the output gear 1221 and the ring gear 1222 are both made of hard rubber.

[0045] In other embodiments, the transmission assembly 122 may further include a worm fixed to the output shaft of the motor 121, and a worm wheel fixed to the impeller 123, wherein the worm and the worm wheel are fitted. Alternatively, the transmission assembly 122 includes a driving wheel fixed to the output shaft of the motor 121, a driven wheel rotatably disposed on the housing 11, a transmission belt sleeved on the driving wheel and the driven wheel, a first bevel gear fixedly connected to the driven wheel and coaxially disposed, and a second bevel gear fixed to the impeller 123, wherein the first bevel gear and the second bevel gear are meshed.

[0046] Optionally, the fan 12 also includes a noise reduction housing 124, which covers the impeller 123. The transmission assembly 122 and the motor 121 are both located within the noise reduction housing 124. This noise reduction feature effectively reduces the noise transmitted to the exterior of the housing 11 during operation of the fan 12, thereby enhancing the user experience. The noise reduction housing 124 is provided with a plurality of sound-absorbing holes. Preferably, sound-absorbing cotton can be attached to the inner surface of the noise reduction housing 124 to further reduce noise.

[0047] Optionally, the ceiling range hood further includes a fixing base 3 and a bearing 4. The fixing base 3 is located within the noise reduction housing 124. The fixing base 3, the noise reduction housing 124, and the top of the housing 11 are connected by a connector. The bearing 4 is connected to the fixing base 3 and the impeller 123, respectively. Specifically, the connector can be a bolt that passes through the fixing base 3 and the noise reduction housing 124 and is threadedly connected to the upper housing 112. The bearing 4 is a planar bearing 4 and is fixed to the fixing base 3 by screws 5. The two end faces of the planar bearing 4 are respectively in contact with the fixing base 3 and the top surface of the impeller 123. In this arrangement, the motor 121 is indirectly fixed to the housing 11 via the fixing base 3, and the impeller 123 is rotatably supported by the fixing base 3. This structure is simple, and the provision of the bearing 4 effectively reduces the friction between the impeller 123 and the housing 11, thereby reducing the force exerted on the housing 11 in its circumferential direction during the rotation of the impeller 123, thereby preventing the range hood 1 from shaking.

[0048] Optionally, the ceiling range hood includes two fans 12, both of which are disposed within the housing 11. The impellers 123 of the two fans 12 rotate in opposite directions, and the two fans 12 have the same suction direction. With this arrangement, when the two fans 12 are started, the forces exerted on the housing 11 by the two impellers 123 are in opposite directions, offsetting each other and further improving the stability of the range hood 1. The suction direction of the fans 12 can be adjusted by adjusting the installation angle of the blades of the impellers 123. Preferably, the two fans 12 are arranged vertically in sequence; alternatively, the two fans 12 are arranged side by side.

[0049] Optionally, the motors 121 of the two fans 12 rotate in opposite directions. With this arrangement, when the motors 121 of the two fans 12 are activated, the forces exerted on the housing 11 by the two motors 121 are in opposite directions, canceling each other out and further preventing the range hood 1 from shaking. Preferably, the motors 121 of the two fans 12 rotate along the same straight line.

[0050] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A ceiling range hood, characterized in that: include: A range hood (1), comprising a housing (11) and a fan (12), wherein the fan (12) is arranged in the housing (11), and comprises a motor (121), a transmission assembly (122), and an impeller (123), wherein the motor (121) is fixed to the housing (11) and is in transmission connection with the transmission assembly (122), and the transmission assembly (122) is in transmission connection with the impeller (123), and the impeller (123) is rotatably arranged in the housing (11), wherein the rotation center of the impeller (123) is along the vertical direction, and the rotation center line of the motor (121) is perpendicular to the rotation center line of the impeller (123); A plurality of hanging rope assemblies (2), one end of each of the hanging rope assemblies (2) is connected to the top end of the shell (11), and the other end of each of the hanging rope assemblies (2) is used to be fixed to the ceiling.

2. The ceiling range hood according to claim 1, characterized in that: The transmission assembly (122) comprises an output gear (1221) fixed to the output shaft of the motor (121), and a ring gear (1222) fixed to the impeller (123); the output gear (1221) is meshed with the ring gear (1222), and the number of teeth of the output gear (1221) is smaller than the number of teeth of the ring gear (1222).

3. The ceiling range hood according to claim 2, characterized in that: The output gear (1221) is made of rubber, or the teeth of the output gear (1221) are covered with a first rubber layer; The gear ring (1222) is made of rubber material, or the teeth of the gear ring (1222) are covered with a second rubber layer.

4. The ceiling range hood according to claim 1, characterized in that: The fan (12) further includes a noise reduction housing (124), wherein the noise reduction housing (124) covers the impeller (123), and the transmission assembly (122) and the motor (121) are both located in the noise reduction housing (124).

5. The ceiling range hood according to claim 4, characterized in that: The ceiling range hood further comprises a fixing seat (3) and a bearing (4); the fixing seat (3) is located in the noise reduction cover (124); the fixing seat (3), the noise reduction cover (124) and the top end of the housing (11) are connected via a connecting piece; the bearing (4) is respectively connected to the fixing seat (3) and the impeller (123).

6. The ceiling range hood according to claim 1, characterized in that: The hoisting rope assembly (2) comprises a hoisting rope (21) and a first vibration damper (22) connected to the bottom end of the hoisting rope (21); the top end of the hoisting rope (21) is used to be fixed to the ceiling; and the first vibration damper (22) is fixedly connected to the top end of the shell (11).

7. The ceiling range hood according to claim 1, characterized in that: The number of the suspension rope assemblies (2) is not less than three, and the plurality of suspension rope assemblies (2) are evenly distributed along the circumferential direction of the impeller (123).

8. The ceiling range hood according to claim 1, characterized in that: The ceiling range hood comprises two fans (12), both of which are arranged in the housing (11), the impellers (123) of the two fans (12) rotate in opposite directions, and the air suction directions of the two fans (12) are the same.

9. The ceiling range hood according to claim 8, characterized in that: The motors (121) of the two fans (12) rotate in opposite directions.

10. The ceiling range hood according to claim 8, characterized in that: The two fans (12) are arranged in sequence along the vertical direction; or, the two fans (12) are arranged side by side.

Images