Chinese style range hood

Abstract

A Chinese style range hood comprises a machine shell with a lower opening, a smoke exhaust connector, an oil screen and a centrifugal fan, the machine shell comprises a smoke exhaust hole and a smoke collecting cavity which are formed in a top plate, and a mounting hole is formed in the top plate of the smoke collecting cavity; a back plate of the shell is vertical to the horizontal plane; the centrifugal fan comprises a front volute with a rear opening, a centrifugal wind wheel and a motor, the front volute comprises a volute main body, an air outlet part and a rear flange, and an air inlet hole is formed in a front wall plate of the volute main body; the rear turnup is attached and fixed to the rear back plate, the air outlet part is communicated with the smoke exhaust hole, the top turnup at the top of the air outlet part is fixed to the top plate, and the smoke exhaust connector is fixed to the top plate and communicated with the smoke exhaust hole; the oil screen is mounted on the mounting hole; the motor is fixed to the back plate through a support. The rear opening of the front volute is closed by the rear backboard of the shell, so that the material consumption is reduced, and the cost is reduced; the upward moving direction of the oil fume is in front of the centrifugal fan, so that the oil fume discharging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a range hood, in particular to a Chinese-style range hood. Background Art

[0002] At present, the existing technology is Chinese patent 201711456395.6, a range hood with an oil net embedded, including a casing, a box body arranged on the top of the casing, a wind cabinet, an oil net and an oil cup, a smoke collecting chamber is arranged on the bottom plate of the casing, and a smoke collecting port is arranged on the top plate of the smoke collecting chamber; the wind cabinet includes a volute and a front volute, the wind cabinet is arranged in the box body, and the smoke collecting port is connected with the lower opening of the box body; the oil net cooperates with the smoke collecting port and the lower opening of the box body; the oil net is in the shape of a cavity with a lower opening, and a plurality of oil smoke guide holes are arranged on the oil net, and the oil smoke guide holes are provided with flanges surrounding the oil smoke guide holes, and the flanges of two adjacent oil smoke guide holes constitute an oil guide groove; the oil net extends into the box body through the smoke collecting port; the lower end of the front volute of the wind cabinet and the oil dripping hole on the volute are opposite to the wall plate on the top of the oil net. There are problems: the fan is tilted forward, and the fan has an acute angle with the horizontal plane at the front and lower sides, and the fan includes a front volute, a rear volute, a centrifugal fan wheel and a motor. Utility Model Content

[0003] The utility model aims to provide a Chinese-style range hood, which has the characteristics that the back plate of the casing is used as a rear volute plate and the centrifugal fan wheel is perpendicular to the horizontal plane.

[0004] The utility model is realized as follows: a Chinese-style range hood, which is special in that it comprises a casing with a lower opening, a smoke exhaust interface, an oil net and a centrifugal fan,

[0005] The housing includes a smoke exhaust hole and a smoke collecting chamber arranged on the top plate, and a mounting hole is arranged on the top plate of the smoke collecting chamber; the back plate of the housing is perpendicular to the horizontal plane;

[0006] The centrifugal fan comprises a front volute with a rear opening, a centrifugal fan wheel and a motor, the front volute comprises a volute body, an air outlet and a rear flange, and an air inlet is arranged on the front wall plate of the volute body;

[0007] The rear flange is fitted and fixed to the back plate, the air outlet is connected to the smoke exhaust hole, the top flange on the top of the air outlet is fixed to the top plate, the smoke exhaust interface is fixed to the top plate and connected to the smoke exhaust hole; the oil net is installed on the mounting hole; the motor is fixed to the back plate through the bracket.

[0008] The Chinese-style range hood is special in that the lower opening end of the housing forms an acute angle with the horizontal plane, and the top plate of the smoke collecting chamber forms an acute angle with the horizontal plane at the lower front side.

[0009] The Chinese-style range hood is special in that the acute angle between the top plate of the smoke collecting chamber and the horizontal plane at the front lower part is greater than the acute angle between the lower opening end of the casing and the horizontal plane.

[0010] The Chinese-style range hood is special in that: the back plate is provided with a front-opening flange fixing groove and a front-opening rear volute cavity;

[0011] The rear flange is engaged and fixed with the flange fixing groove, and the centrifugal wind wheel is opposite to the rear volute cavity.

[0012] The Chinese-style range hood is special in that: a power line slot with a front opening is also provided on the back plate, and the power line slot is communicated with the rear volute.

[0013] The utility model discloses a Chinese-style range hood, wherein the rear opening of the front volute is closed by the rear back plate of the casing, thereby reducing the material consumption and the cost; the upward movement direction of the oil smoke is located in front of the centrifugal fan, thereby improving the oil smoke exhaust efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the utility model.

[0015] Figure 2 yes Figure 1 A-A view of.

[0016] Figure 3 It is a three-dimensional cross-sectional view of the utility model.

[0017] Figure 4 It is a stereogram of the utility model.

[0018] Figure 5 It is one of the three-dimensional exploded views of the utility model.

[0019] Figure 6 This is the second three-dimensional exploded view of the present utility model.

[0020] Figure 7 This is the third three-dimensional exploded view of the present utility model. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, a Chinese-style range hood comprises a casing 1 with a lower opening, a smoke exhaust interface 2, an oil net 3 and a centrifugal fan 4.

[0024] The housing 1 includes a smoke exhaust hole 11 and a smoke collecting chamber 12 arranged on the top plate, and a mounting hole is arranged on the top plate of the smoke collecting chamber 12; the back plate 13 of the housing 1 is perpendicular to the horizontal plane;

[0025] The centrifugal fan 4 comprises a front volute 41 with a rear opening, a centrifugal fan wheel 42 and a motor 43. The front volute 41 comprises a volute body 411, an air outlet 412 and a rear flange 413. An air inlet is arranged on the front wall of the volute body 411.

[0026] The rear flange 413 is fitted and fixed to the back plate 13, the front volute and the back plate constitute a volute, the air outlet 412 and the back plate 13 constitute an air outlet duct and are connected to the smoke exhaust hole 11, the top flange of the air outlet 412 is fixed to the top plate of the casing 1, the smoke exhaust interface 2 is fixed to the top plate and is connected to the smoke exhaust hole 11; the oil net 3 is installed on the mounting hole; the motor 43 is fixed to the back plate 13 through a bracket.

[0027] As a further improvement of the present invention: the lower opening end of the housing 1 forms an acute angle α with the horizontal plane, and the top plate of the smoke collecting chamber forms an acute angle β with the horizontal plane at the lower front side;

[0028] The acute angle β between the top plate of the smoke collecting chamber and the horizontal plane at the front lower part is greater than the acute angle α between the lower opening end of the casing 1 and the horizontal plane.

[0029] As a further improvement of the utility model: the back plate 13 is provided with a front-opening flange fixing groove 131 and a front-opening rear volute cavity 132;

[0030] The rear flange is engaged and fixed in the flange fixing groove, and the rear end of the motor 43 extends into the end cavity of the motor 43.

[0031] As a further improvement of the present invention: the rear back plate 13 is further provided with a power line groove 133 with a front opening, and the power line groove 133 is communicated with the rear volute 132 cavity.

[0032] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A Chinese-style range hood, characterized in that: It includes a casing with a lower opening, a smoke exhaust interface, an oil screen and a centrifugal fan. The housing includes a smoke exhaust hole and a smoke collecting chamber arranged on the top plate, and a mounting hole is arranged on the top plate of the smoke collecting chamber; the back plate of the housing is perpendicular to the horizontal plane; The centrifugal fan comprises a front volute with a rear opening, a centrifugal fan wheel and a motor, the front volute comprises a volute body, an air outlet and a rear flange, and an air inlet is arranged on the front wall plate of the volute body; The rear flange is fitted and fixed to the back plate, the air outlet is connected to the smoke exhaust hole, the top flange on the top of the air outlet is fixed to the top plate, the smoke exhaust interface is fixed to the top plate and connected to the smoke exhaust hole; the oil net is installed on the mounting hole; the motor is fixed to the back plate through the bracket.

2. The Chinese-style range hood according to claim 1, characterized in that: The lower opening end of the casing forms an acute angle with the horizontal plane, and the top plate of the smoke collecting chamber forms an acute angle with the horizontal plane at the lower front side.

3. The Chinese-style range hood according to claim 2, characterized in that: The acute angle between the top plate of the smoke collecting chamber and the horizontal plane at the lower front side is greater than the acute angle between the lower opening end of the housing and the horizontal plane.

4. The Chinese style range hood according to claim 1, 2 or 3, characterized in that: The back plate is provided with a front-opening flange fixing groove and a front-opening rear volute cavity; The rear flange is engaged and fixed with the flange fixing groove, and the centrifugal wind wheel is opposite to the rear volute cavity.

5. The Chinese-style range hood according to claim 4, characterized in that: The back plate is also provided with a power line trough with a front opening, and the power line trough is communicated with the rear volute cavity.

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