Large-air-volume turning plate range hood

Abstract

The utility model discloses a large-air-volume turning plate range hood, and belongs to the technical field of range hoods. The multiple damping holes are formed in the wind receiving face of the left side of the volute, the damping cotton used for silencing is laid on the volute at the same position, noise generated by impact of airflow and the volute can be reduced through the damping holes, meanwhile, vibration of the volute can be reduced through the damping cotton, and therefore noise of the volute is further reduced; by arranging the larger impeller and the motor with larger power compared with a traditional fan assembly, the smoke suction capacity of the fan assembly can be improved, and therefore the smoke suction effect of the range hood is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of range hoods, and in particular relates to a flap range hood with a large air volume. Background Art

[0002] As a commonly used kitchen appliance, the range hood is an essential appliance for people to absorb oil fumes when cooking. During the operation of the range hood, there is a strong unsteady interference between the airflow at the outlet of the volute inside it and the arc-shaped guide plate on the wall of the air duct, which makes the guide plate produce a large airflow impact noise. In order to solve the problem of airflow impact noise, the relevant technology adopts the means of adjusting the position and structure of the fan system inside the range hood to achieve the effect of internal flow stabilization and noise reduction. Since the fan speed inside the range hood is unstable and the airflow state inside the range hood is different under different working conditions, the means of adjusting the position and structure of the fan system cannot effectively achieve noise reduction under different working conditions. Summary of the invention

[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a flap range hood with large air volume.

[0004] The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a large-air-volume flap range hood, comprising a shell, characterized in that: the shell comprises an upper shell and a lower shell, the front side of the upper end of the lower shell is inclinedly provided with a front panel, a flip panel is provided on the lower shell under the front panel, the upper end of the flip panel is rotatably connected to the lower end of the front panel, and a telescopic electric cylinder for driving the reversal panel to rotate is provided inside one side of the lower shell, a fan assembly is provided in the upper shell, the fan assembly comprises a turbine and a driving motor, the turbine comprises a volute and an impeller, the driving motor is fixed at the center position of the volute and the driving shaft of the driving motor is fixedly connected to the impeller, the air outlet of the volute is fixedly connected to the top of the upper shell, the bottom and rear side of the volute are provided with brackets connected to the upper shell, shock-absorbing cotton is attached to the right arc surface of the volute, and a plurality of shock-absorbing holes are opened on the volute corresponding to the shock-absorbing cotton.

[0005] Preferably, an oil guide plate is provided at the bottom of the volute.

[0006] Preferably, an oil receiving cup is provided at the bottom of the lower shell.

[0007] Preferably, the impeller is a large-diameter impeller.

[0008] Preferably, the driving motor is a high-power motor.

[0009] The utility model has the beneficial effects: by opening a plurality of shock-absorbing holes on the wind-receiving surface on the left side of the volute, and laying shock-absorbing cotton for silencing on the volute at the same position, the setting of the shock-absorbing holes can reduce the noise generated by the impact of the airflow and the volute, and at the same time, the setting of the shock-absorbing cotton can reduce the vibration of the volute, thereby further reducing the generation of volute noise; by setting a larger impeller and a higher-power motor than the traditional one, the smoke-absorbing capacity of the fan assembly can be increased, thereby improving the smoke-absorbing effect of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 This is a structural schematic diagram of the telescopic electric cylinder and turbine of the utility model;

[0012] Figure 3 It is a structural schematic diagram of the fan assembly of the utility model;

[0013] Figure 4 It is a structural schematic diagram of the bracket and the oil guide plate of the utility model.

[0014] In the figure: 1. Shell; 2. Upper shell; 3. Lower shell; 4. Front panel; 5. Flip panel; 6. Telescopic electric cylinder; 7. Turbine; 8. Drive motor; 9. Volute; 10. Impeller; 11. Bracket; 12. Shock-absorbing cotton; 13. Shock-absorbing hole; 14. Oil guide plate; 15. Oil collecting cup. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0016] Embodiment: A large air volume flap range hood, such as Figure 1-Figure 4 As shown, it includes a shell 1, which includes an upper shell 2 and a lower shell 3. A front panel 4 is inclined on the front side of the upper end of the lower shell 3, and a flip panel 5 is provided on the lower shell 3 on the lower side of the front panel 4. The upper end of the flip panel 5 is rotatably connected to the lower end of the front panel 4, and a telescopic electric cylinder 6 for driving the reversal panel to rotate is provided inside one side of the lower shell 3. A fan assembly is provided in the upper shell 2, and the fan assembly includes a turbine 7 and a driving motor 8. The turbine 7 includes a volute 9 and an impeller 10. The driving motor 8 is fixed at the center position of the volute 9 and the driving shaft of the driving motor 8 is fixedly connected to the impeller 10. The air outlet of the volute 9 is fixedly connected to the top of the upper shell 2, and the bottom and rear side of the volute 9 are provided with a bracket 11 connected to the upper shell 2. Shock-absorbing cotton 12 is attached to the right arc surface of the volute 9, and a plurality of shock-absorbing holes 13 are opened on the volute 9 corresponding to the shock-absorbing cotton 12.

[0017] An oil guide plate 14 is provided at the bottom of the volute 9; an oil receiving cup 15 is provided at the bottom of the lower housing 3; the impeller 10 is a large-diameter impeller 10; and the drive motor 8 is a high-power motor.

[0018] Principle of the utility model: when the range hood is in use, there is a strong unsteady interference between the airflow at the outlet of the volute inside it and the arc-shaped guide plate on the wall of the air duct, which makes the guide plate generate a large airflow impact noise. This problem will be more obvious on the range hood with large air volume. Therefore, a shock-absorbing hole 13 is opened at the wind receiving outlet of the volute 9, and shock-absorbing cotton 12 is affixed. The setting of the shock-absorbing hole 13 can reduce the noise generated by the impact of the airflow and the volute 9. At the same time, the setting of the shock-absorbing cotton 12 can reduce the vibration of the volute 9, thereby further reducing the generation of noise from the volute 9.

[0019] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. A large air volume flap range hood, comprising a housing (1), characterized in that: The housing (1) comprises an upper housing (2) and a lower housing (3); a front panel (4) is obliquely provided on the front side of the upper end of the lower housing (3); a flip panel (5) is provided on the lower housing (3) below the front panel (4); the upper end of the flip panel (5) is rotatably connected to the lower end of the front panel (4); a telescopic electric cylinder (6) for driving the flip panel to rotate is provided inside one side of the lower housing (3); a fan assembly is provided in the upper housing (2); the fan assembly comprises a turbine (7) and a drive motor (8); The turbine (7) comprises a volute (9) and an impeller (10), the drive motor (8) is fixed at the center of the volute (9) and the drive shaft of the drive motor (8) is fixedly connected to the impeller (10), the air outlet of the volute (9) is fixedly connected to the top of the upper shell (2), the bottom and rear side of the volute (9) are both provided with a bracket (11) connected to the upper shell (2), the right arc surface of the volute (9) is provided with a shock-absorbing cotton (12), and a plurality of shock-absorbing holes (13) are opened on the volute (9) corresponding to the shock-absorbing cotton (12).

2. The large air volume flap range hood according to claim 1, characterized in that: An oil guide plate (14) is provided at the bottom of the volute (9).

3. The large air volume flap range hood according to claim 1, characterized in that: An oil receiving cup (15) is provided at the bottom of the lower housing (3).

4. The large air volume flap range hood according to claim 1, characterized in that: The impeller (10) is a large-diameter impeller (10).

5. The large air volume flap range hood according to claim 1, characterized in that: The driving motor (8) is a high-power motor.

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