CN216431849U

CN216431849U - Noise-reducing range hood

Info

Publication number: CN216431849U
Application number: CN202122424630.XU
Authority: CN
Inventors: 刘世文; 肖超辉
Original assignee: Chinabest Home Appliances Co Ltd
Current assignee: Chinabest Home Appliances Co Ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-05-03
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a range hood of degradable noise, it includes: the cigarette case is provided with an air inlet and an installation cavity which are communicated; the fan device is arranged in the mounting cavity and comprises a fan shell, a motor arranged on the fan shell and a wind wheel connected with the motor; the power generation module comprises an acoustic-electric conversion isolation liner arranged in the mounting cavity; the power utilization module and the control module are electrically connected with the power utilization module and the power generation module. The inside noise of range hood conducts to the acoustoelectric conversion spacer through the mode of vibrations, and the acoustoelectric conversion spacer can the transmission outside the noise range hood of separation, and through acoustoelectric conversion spacer absorbed noise energy, not only reducible transmission is to the noise outside the range hood, still can be the electric energy with noise energy conversion, transmits the electric energy for using the electric module through control module group, so, can utilize the inside noise energy of range hood through above-mentioned structure.

Description

Noise-reducing range hood

Technical Field

The utility model relates to a kitchen appliance technical field, in particular to range hood.

Background

Most of the traditional range hoods adopt a constant air volume control scheme, and in the process of adjusting the air volume, along with the increase of external air pressure or the smaller air intake at an air inlet, the motor increases the rotating speed for achieving a target air volume value. The noise emitted outwards by the range hood increases along with the increase of the rotating speed, and the use comfort and the use experience of a user are influenced by the excessive noise. The noise reduction methods commonly used today include: 1. the hose is used for wrapping the smoke exhaust ventilator to reduce the noise of the smoke exhaust ventilator; 2. the multistage wind-shielding ring is used for inhibiting air quantity in the device, reducing noise and the like. However, these methods do not utilize the noise energy, resulting in waste of the noise energy.

In addition, although fuel exhaust gas and oil smoke generated in the cooking process can be taken away by the range hood, heat generated by the operation of the motor cannot be quickly dissipated. The motor still has the heat that gathers after the shutdown and can not give off, and the inside more heat that also can gather of range hood, and these heats conduct gradually to the air in kitchen through range hood's shell for the ambient temperature in kitchen rises, and the user is relatively poor in the experience in kitchen.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a range hood that can fall and make an uproar can reduce the outside noise that sends of range hood to can utilize the inside noise energy of range hood.

In order to achieve the above object, a range hood capable of reducing noise is provided, which comprises: the cigarette case is provided with an air inlet and an installation cavity which are communicated; the fan device is arranged in the installation cavity and comprises a fan shell, a motor arranged on the fan shell and a wind wheel connected with the motor; the power generation module comprises an acoustic-electric conversion isolation lining arranged in the installation cavity; the power utilization module and the power generation module are electrically connected with the control module.

According to the range hood capable of reducing noise, the air inlet is located at the bottom of the installation cavity, the installation cavity is internally provided with a front side wall, a left side wall, a right side wall and an inner top wall, and the front side wall, the left side wall and the right side wall are all provided with the acoustic-electric conversion lining.

According to the range hood capable of reducing noise, the acoustic-electric conversion isolation lining is arranged to be a piezoelectric ceramic piece.

According to the range hood that can make an uproar falls, power consumption module includes first refrigeration piece, first refrigeration piece set up in interior roof.

According to the range hood capable of reducing noise, the power utilization module comprises a second refrigeration piece, and the second refrigeration piece is attached to the shell of the motor.

According to the range hood capable of reducing noise, the control module comprises: the main control module is provided with a power supply switching component and an inversion component, the power supply switching component is provided with two input ends and an output end, the inversion component is electrically connected with one of the input ends, and the motor is electrically connected with the output end; the control signal input module is arranged on the cigarette case and is electrically connected with the main control module; the storage battery is arranged on the cigarette case and is electrically connected with the inverter assembly; and the voltage stabilizing module is electrically connected with the power generation module and the storage battery respectively.

According to the range hood that can make an uproar falls, control module group still includes: the detection assembly is arranged in the installation cavity and comprises a noise sensor, and the noise sensor is electrically connected with the main control module; the first on-off component is connected between the power generation module and the voltage stabilizing module in series and is electrically connected with the main control module.

According to the range hood capable of reducing noise, the detection assembly further comprises a temperature sensor, and the temperature sensor is electrically connected with the main control module; the control module group further comprises a second on-off component, the second on-off component is connected between the storage battery and the power utilization module in series, and the second on-off component is electrically connected with the main control module.

According to the range hood capable of reducing noise, the inner top wall is provided with the air outlet, the fan shell is provided with the air outlet barrel, the air outlet barrel is inserted into the air outlet, the first refrigerating sheet and the inner top wall are provided with the heat conducting piece, and the heat conducting piece extends into the air outlet barrel.

According to the range hood capable of reducing noise, the inner top wall is provided with the air outlet, the fan shell is provided with the air outlet barrel, the air outlet barrel is inserted into the air outlet, a heat dissipation gap is formed between the first refrigerating sheet and the inner top wall, the inner wall of the air outlet barrel is provided with the air guide notch and the air guide shell, the air guide notch is communicated with the heat dissipation gap, the air guide channel is enclosed between the air guide shell and the inner wall of the air outlet barrel, the bottom of the air guide channel is open, and the air guide channel is communicated with the air guide notch.

The scheme has at least one of the following beneficial effects:

when the range hood works, the motor operates to drive the wind wheel to rotate, vibration noise generated when the motor operates and noise such as wind noise in the installation cavity exist in the range hood, the noise is transmitted to the acoustic-electric conversion insulating liner in a vibration mode, and the acoustic-electric conversion insulating liner can block the noise from being transmitted outside the range hood, so that the noise transmitted outside the range hood can be reduced; and through the noise energy of sound-electricity conversion shock insulator absorption, noise outside not only reducible transmission to the range hood still can be with noise energy conversion electric energy, transmits the electric energy to the power consumption module through the control module group and uses, so, can utilize the inside noise energy of range hood through above-mentioned structure.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

FIG. 1 is a view showing the structure of a first embodiment of the present invention;

FIG. 2 is a view of the first embodiment of the present invention from another perspective;

FIG. 3 is an exploded view of the blower device;

fig. 4 is a plan view of a first embodiment of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

fig. 6 is a circuit block diagram of the first embodiment of the present invention;

fig. 7 is a schematic view of a second cooling fin cooperating with a fan housing according to a second embodiment of the present invention;

fig. 8 is a schematic view of the second cooling fin and the fan case according to the third embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the terms greater than, less than, exceeding, etc. are understood to exclude the number, and the terms above, below, inside, etc. are understood to include the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1 to 6, a range hood capable of reducing noise includes a hood 10, a fan device 20, a power generation module 30, a power utilization module 40, and a control module.

Wherein, be provided with air inlet 11, installation cavity 12 and gas outlet on the cigarette machine shell 10, air inlet 11, installation cavity 12 and gas outlet arrange in proper order from bottom to top, and the three communicates in proper order. The fan device 20 is arranged in the installation cavity 12, the fan device 20 comprises a fan shell 21, a motor 22 and a wind wheel 23, an air outlet cylinder 211 is arranged on the fan shell 21, the air outlet cylinder 211 is inserted into an air outlet, the motor 22 is arranged in the fan shell 21, and the wind wheel 23 is connected with the motor 22. The power generation module 30 comprises an acoustic-electric conversion liner 31, and the acoustic-electric conversion liner 31 is arranged in the installation cavity 12. The power utilization module 40 and the power generation module 30 are electrically connected with the control module.

When the range hood works, the motor 22 runs to drive the wind wheel 23 to rotate, oil smoke and fuel waste gas in a kitchen are sucked, vibration noise generated by running of the motor 22 and noise such as wind noise in the installation cavity 12 exist inside the range hood, the noise is conducted to the acoustic-electric conversion spacer 31 in a vibration mode, the acoustic-electric conversion spacer 31 can block noise and is transmitted outside the range hood, the noise energy is absorbed through the acoustic-electric conversion spacer 31 and is converted into electric energy, the electric energy is transmitted to the electric module 40 through the control module to be used, and noise vibration transmitted outside the range hood is reduced. So, can reduce the outside noise that sends of range hood through above-mentioned structure to can utilize the inside noise energy of range hood.

Specifically, the mounting cavity 12 has a front side wall, a left side wall, a right side wall and an inner top wall, and when the range hood is mounted, the rear side of the range hood is attached to a wall, so that noise vibration of the range hood is mainly transmitted out through the front side and the left side and the right side. In order to reduce the outward noise of the range hood, the front side wall, the left side wall and the right side wall are all provided with the acoustic-electric conversion isolation lining 31 so as to better absorb and utilize the noise vibration.

The acoustic-electric conversion spacer 31 may be a piezoelectric ceramic sheet or the like.

The power utilization module 40 includes a first refrigeration sheet 41 and a second refrigeration sheet 42, the first refrigeration sheet 41 is disposed on the inner top wall of the installation cavity 12, and the second refrigeration sheet 42 is attached to the housing of the motor 22. The first refrigeration sheet 41 is used for cooling and refrigerating the inside of the installation cavity 12, and the second refrigeration sheet 42 is used for cooling and refrigerating the motor 22 to avoid overheating of the motor 22; the lower temperature of motor 22 after shutdown reduces heat build up on motor 22. Therefore, the first refrigeration sheet 41 and the second refrigeration sheet 42 can reduce the heat conducted to the air in the kitchen through the housing of the range hood, and reduce the temperature rise in the kitchen.

Referring to fig. 6, the control module includes a main control module 51, a control signal input module 52, a storage battery 53, a voltage stabilization module 54, a detection assembly 55, a first on-off assembly 56, and a second on-off assembly 57. The main control module 51 is provided with a power switching component 511 and an inverter component 512, the power switching component 511 has two input ends and one output end, the inverter component 512 is electrically connected with one input end, the other input end is used for connecting with a mains supply, and the motor 22 is electrically connected with the output end. The control signal input module 52 is disposed on the cigarette case 10, and the control signal input module 52 is electrically connected to the main control module 51. The battery 53 is disposed on the smoke housing 10, and the battery 53 is electrically connected to the inverter module 512. The voltage stabilization module 54 is electrically connected to the power generation module 30 and the battery 53, respectively. The detection assembly 55 is disposed in the mounting cavity 12, the detection assembly 55 includes a noise sensor 551 and a temperature sensor 552, and the noise sensor 551 and the temperature sensor 552 are electrically connected to the main control module 51. The first on-off component 56 is connected in series between the power generation module 30 and the voltage stabilization module 54, the second on-off component 57 is connected in series between the storage battery 53 and the power utilization module 40, and both the first on-off component 56 and the second on-off component 57 are electrically connected with the main control module 51.

Wherein, a control box 14 is arranged on the top of the cigarette machine shell 10, and the storage battery 53 and the main control module 51 are both arranged in the control box 14. The control signal input module 52 may be configured as a touch pad, a keyboard, a gesture switch, etc., and the control signal input module 52 may control a signal to the main control module 51 to control the operation of the motor 22.

The noise sensor 551 is used for detecting the noise, when the noise exceeds a set threshold, the main control module 51 controls the first on-off component 56 to operate, the power generation module 30 and the voltage stabilization module 54 are conducted, the power generation module 30 absorbs the noise energy and converts the noise energy into electric energy, the voltage stabilization module 54 stabilizes and raises the voltage, and the current sequentially flows through the power generation module 30, the voltage stabilization module 54 and the storage battery 53 to charge the storage battery 53; temperature sensor 552 is used for detecting the temperature in installation cavity 12, and when the temperature in installation cavity 12 exceeded the settlement threshold value, master control module 51 controlled the action of second break-make subassembly 57, switched on between battery 53 and the power consumption module 40, and the electric current flows through battery 53, second break-make subassembly 57 and power consumption module 40 in proper order, and first refrigeration piece 41 and second refrigeration piece 42 circular telegram are in order to cool down the refrigeration. In addition, when the control signal input module 52 sends a low-speed operation signal of the motor 22 to the main control module 51 (i.e. the motor 22 is in low-speed operation), the main control module 51 controls the power switching component 511 to operate, so as to conduct the inverter and the motor 22, and the electric energy of the storage battery 53 is transmitted to the motor 22 through the inverter and the power switching component 511, so as to drive the motor 22 to operate at a low speed; when the control signal input module 52 sends a middle-speed operation signal or a high-speed operation signal of the motor 22 to the main control module 51 (that is, the motor 22 operates at a middle gear or at a high speed), the main control module 51 controls the power switching module 511 to operate, so as to conduct the commercial power with the motor 22, and the commercial power is transmitted to the motor 22 through the power switching module 511 to drive the motor 22 to operate at a middle speed or at a high speed.

As described above, the storage battery 53 can store the electric energy converted by the power generation module 30, and can supply the electric energy to the first cooling plate 41 and the second cooling plate 42 for cooling the motor 22 and the installation cavity 12. And the storage battery 53 can supply the motor 22 to operate at a low speed, so that the consumption of the range hood on the commercial power is reduced, the electricity is saved, and the energy consumption is reduced.

The first and

second cooling fins

41 and 42 may be both configured as semiconductor cooling fins having a heat absorbing side and a heat radiating side. As for the second cooling plate 42, the heat absorption side thereof is attached to the housing of the motor 22, and the airflow generated by the motor 22 during operation passes through the heat emission side of the second cooling plate 42 to carry away the heat on the heat emission side of the second cooling plate 42. For the first cooling fins 41, the heat absorbing side faces the fan device 20 in the installation cavity 12, and the heat releasing side faces away from the fan device 20.

Referring to fig. 7, in order to take away heat of the heat-releasing side of the first chilling plate 41, a heat-conducting member 61 is disposed between the first chilling plate 41 and the inner top wall, and the heat-conducting member 61 penetrates through the sidewall of the outlet duct 211 to extend into the outlet duct 211. The heat-conducting member 61 absorbs heat on the first refrigeration sheet 41 and conducts the heat, and the airflow passes through the heat-conducting member 61 to take away the heat on the heat-conducting member 61, so that the heat on the heat-releasing side of the first refrigeration sheet 41 can be taken away, and the heat dissipation is performed on the first refrigeration sheet 41. The heat conducting member 61 may be a heat pipe or an aluminum strip.

Referring to fig. 8, in some embodiments, in order to take away heat of the heat release side of the first cooling fin 41, a heat dissipation gap 62 is provided between the first cooling fin 41 and the inner top wall, an air guide gap 63 and an air guide shell 64 are provided on the inner wall of the air outlet cylinder 211, the air guide gap 63 is communicated with the heat dissipation gap 62, an air guide channel 65 is formed between the air guide shell 64 and the inner wall of the air outlet cylinder 211 in an enclosing manner, the bottom of the air guide channel 65 is open, and the air guide channel is communicated with the air guide gap 63. The air flow flows into the heat dissipation gap 62 along the air guide channel 65 and the air guide notch 63, and then flows into the installation cavity 12, so that the heat of the heat radiation side of the first chilling plate 41 can be taken away, and the heat of the first chilling plate 41 is dissipated.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a range hood that can reduce noise which characterized in that includes:

the smoke machine shell (10), wherein the smoke machine shell (10) is provided with an air inlet (11) and an installation cavity (12) which are communicated;

the fan device (20) is arranged in the installation cavity (12), and the fan device (20) comprises a fan shell (21), a motor (22) arranged on the fan shell (21) and a wind wheel (23) connected with the motor (22);

the power generation module (30), the power generation module (30) includes the acoustoelectric conversion isolation liner (31) arranged in the installation cavity (12);

the power utilization module (40) and the control module are electrically connected with the power utilization module (40) and the power generation module (30).

2. A noise-reducing range hood according to claim 1, wherein the air inlet (11) is located at the bottom of the installation cavity (12), the installation cavity (12) has a front side wall, a left side wall, a right side wall and an inner top wall, and the front side wall, the left side wall and the right side wall are all provided with the acoustic-electric conversion spacer (31).

3. A range hood capable of reducing noise according to claim 1 or 2, wherein the acoustic-electric conversion spacer (31) is configured as a piezoelectric ceramic sheet.

4. The range hood capable of reducing noise according to claim 2, wherein the power utilization module (40) comprises a first cooling plate (41), and the first cooling plate (41) is disposed on the inner top wall.

5. The range hood capable of reducing noise according to claim 1 or 2, wherein the power utilization module (40) comprises a second cooling plate (42), and the second cooling plate (42) is attached to a housing of the motor (22).

6. A range hood with noise reduction function according to claim 1 or 2, wherein said control module comprises:

the main control module (51), the main control module (51) has power switching component (511) and contravariant component (512), the power switching component (511) has two input ends and an output end, the contravariant component (512) is connected with one of the input ends, the motor (22) is connected with the output end;

the control signal input module (52), the control signal input module (52) is arranged on the cigarette case (10), and the control signal input module (52) is electrically connected with the main control module (51);

the storage battery (53) is arranged on the cigarette case (10), and the storage battery (53) is electrically connected with the inverter component (512);

and the voltage stabilizing module (54), wherein the voltage stabilizing module (54) is respectively and electrically connected with the power generation module (30) and the storage battery (53).

7. The range hood of claim 6, wherein the control module further comprises:

the detection assembly (55), the detection assembly (55) is arranged in the installation cavity (12), the detection assembly (55) comprises a noise sensor (551), and the noise sensor (551) is electrically connected with the main control module (51);

the first on-off component (56), the first on-off component (56) is connected in series between the power generation module (30) and the voltage stabilization module (54), and the first on-off component (56) is electrically connected with the main control module (51).

8. The range hood capable of reducing noise according to claim 7, wherein the detection assembly (55) further comprises a temperature sensor (552), and the temperature sensor (552) is electrically connected with the main control module (51);

the control module further comprises a second on-off component (57), the second on-off component (57) is connected between the storage battery (53) and the power utilization module (40) in series, and the second on-off component (57) is electrically connected with the main control module (51).

9. The range hood capable of reducing noise according to claim 4, wherein the inner top wall is provided with an air outlet, the fan housing (21) is provided with an air outlet cylinder (211), the air outlet cylinder (211) is inserted into the air outlet, a heat conducting member (61) is arranged between the first refrigeration sheet (41) and the inner top wall, and the heat conducting member (61) extends into the air outlet cylinder (211).

10. The range hood capable of reducing noise according to claim 4, wherein the inner top wall is provided with an air outlet, the fan housing (21) has an air outlet cylinder (211), the air outlet cylinder (211) is inserted into the air outlet, a heat dissipation gap (62) is provided between the first refrigeration sheet (41) and the inner top wall, an air guide gap (63) and an air guide housing (64) are provided on an inner wall of the air outlet cylinder (211), the air guide gap (63) is communicated with the heat dissipation gap (62), an air guide channel (65) is enclosed between the air guide housing (64) and the inner wall of the air outlet cylinder (211), a bottom of the air guide channel (65) is open, and the air guide channel is communicated with the air guide gap (63).