CN211625390U

CN211625390U - Fume exhaust fan

Info

Publication number: CN211625390U
Application number: CN201922496205.4U
Authority: CN
Inventors: 陈浩辉; 徐鑫; 申志贤
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-01-14
Filing date: 2019-12-31
Publication date: 2020-10-02
Anticipated expiration: 2029-12-31
Also published as: CN210861257U; CN211822556U; CN212378029U; CN210861274U; CN111023221B; CN211822584U; CN210861258U; CN212378031U; CN210399058U; CN211625391U; CN211119553U; CN111006291B; CN211119552U; CN210662985U; CN210861270U; CN111006291A; CN111023221A; CN211119554U; CN211372530U; CN211372528U

Abstract

The utility model relates to a range hood, including the casing and locate the fan system in this casing, its characterized in that: the casing lower part has the smoke inlet chamber of vertical extension, casing upper portion has the collection smoke chamber that is linked together with smoke inlet chamber, the forward extension of collection smoke chamber forms the installation cavity that is used for installing fan system, fan system top-down slopes forward gradually and has the air intake of arranging backward, the air outlet of arranging upwards. The back wall of the shell of the range hood of the utility model is mounted by wall hanging, because the smoke inlet cavity at the lower part of the shell extends vertically, the width of the smoke inlet cavity in the front and back direction can be made thinner, and the smoke inlet cavity can extend downwards to be sufficiently close to a cooker and a smoke generating source, so that the smoke can be rapidly sucked into the smoke inlet cavity to be discharged as soon as the smoke is generated, and the smoke suction effect is improved; the fan system is arranged in the mounting cavity in a manner of gradually inclining forwards from top to bottom, so that the width of a smoke collection area can be increased, and the oil smoke absorption effect is further improved.

Description

Fume exhaust fan

Technical Field

The utility model relates to a for kitchen use household electrical appliances technical field specifically indicates a range hood.

Background

Range hood is the electrical apparatus that is essential in the kitchen at present, and is comparatively common and use more extensively to arrange oily smoke purification system in last.

At present, the upward-exhaust oil fume purification system is mainly divided into two types: a top-suction range hood and a near-suction range hood. The top-suction type range hood is more attractive, but the smoke inlet is higher, and the smoke suction effect is limited; compared with a top-suction range hood, the near-suction range hood has a lower smoke inlet, but is influenced by the appearance structure and the internal air duct structure of the near-suction range hood, and the existing near-suction range hood cannot better approach oil smoke, so that the oil smoke suction effect is limited to a great extent.

The vertically arranged smoke inlet air channel is beneficial to approaching to a smoke generating source, but for a fan system which is vertically arranged above the smoke inlet air channel, if an air inlet of the fan system faces forwards, the flowing stroke of the smoke is long, and the smoke suction effect can be influenced to a certain extent; if the air inlet of the fan system faces backwards, the smoke collection area between the fan system and the rear side wall of the shell of the range hood is narrow, and the smoke absorption effect of the range hood can also be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a through making the smoke inlet fully be close the oil smoke source and improve the range hood of oil absorption cigarette effect.

The utility model discloses another technical problem that will solve is the current situation to prior art, thereby provides a range hood through increase collection cigarette regional width improvement oil absorption cigarette effect.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes the casing and locates the fan system in this casing, its characterized in that: the casing lower part has the smoke inlet chamber of vertical extension, casing upper portion has the collection smoke chamber that is linked together with smoke inlet chamber, the forward extension of collection smoke chamber forms the installation cavity that is used for installing fan system, fan system top-down slopes forward gradually and has the air intake of arranging backward, the air outlet of arranging upwards.

In the above scheme, the air outlet of the fan system is arranged corresponding to the smoke inlet cavity, and a triangular smoke collection area is formed between the rear side of the fan system and the rear wall of the smoke collection cavity. The triangular smoke collection area is small in upper end and large in lower end, and rapid smoke discharge is achieved on the basis of improving the smoke collection effect.

As a scheme, the fan system is a double-air-inlet fan system, and the air inlet is a main air inlet of the fan system; the front side of the fan system is also provided with an auxiliary air inlet. By adopting the double-air-inlet fan system, most oil smoke is sucked away through the main air inlet, and a small amount of oil smoke inevitably enters the mounting cavity at the upper end of the vertical smoke inlet flue, so that the oil smoke can be sucked away through the auxiliary air inlet, and the oil smoke suction effect is improved.

As another scheme, the fan system is a single-air-inlet fan system, a baffle plate extending downwards to the front edge of the top of the smoke inlet cavity is arranged at the rear side edge of the fan system, and the lower part of the smoke collecting cavity and the lower part of the installation cavity are separated into relatively independent spaces by the baffle plate. When a single air inlet fan system is adopted, in order to avoid that oil smoke flowing into the installation cavity cannot be discharged in time, the baffle is arranged, so that the oil smoke is prevented from entering the installation cavity, the oil smoke is collected in the smoke collection cavity and is discharged in time, and the oil smoke absorption effect is improved.

Preferably, the lower end of the smoke inlet cavity is arranged in an open mode so as to form a smoke inlet, the front wall of the smoke inlet cavity is gradually inclined forwards from top to bottom near the lower edge to form a first flow guide surface, and the rear wall of the smoke inlet cavity is gradually inclined backwards from top to bottom near the lower edge to form a second flow guide surface. The structure that the lower end of the smoke inlet is gradually enlarged from top to bottom can generate a flow guiding effect when oil smoke enters, reduce energy loss and noise caused by vortex formation at the moment and improve the oil smoke absorption effect.

Preferably, the front wall of the smoke inlet cavity inclines gradually from bottom to top near the upper edge to form a third diversion surface, and the rear wall of the smoke inlet cavity inclines gradually from bottom to top near the upper edge to form a fourth diversion surface. The structure is favorable for avoiding forming vortex at the joint of the smoke inlet cavity, the smoke collecting cavity and the mounting cavity due to the sharp change of the angle of the flow channel, thereby avoiding the formation of energy loss and noise.

Compared with the prior art, the utility model has the advantages of: the back wall of the shell of the range hood of the utility model is mounted by wall hanging, because the smoke inlet cavity at the lower part of the shell extends vertically, the width of the smoke inlet cavity in the front and back direction can be made thinner, and the smoke inlet cavity can extend downwards to be sufficiently close to a cooker and a smoke generating source, so that the smoke can be rapidly sucked into the smoke inlet cavity to be discharged as soon as the smoke is generated, and the smoke suction effect is improved; the fan system is arranged in the mounting cavity in a manner of gradually inclining forwards from top to bottom, so that the width of a smoke collection area can be increased, and the oil smoke absorption effect is further improved.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1:

as shown in fig. 1 and 2, the range hood of the present embodiment includes a housing 1 and a fan system 2 disposed in the housing 1. The lower part of the shell 1 is provided with a vertically extending smoke inlet cavity 11, the front side wall of the lower part of the shell 1 is provided with a smoke inlet 111 communicated with the smoke inlet cavity 11, the upper part of the shell 1 is provided with a smoke collecting cavity 12 communicated with the smoke inlet cavity 11, the smoke collecting cavity 12 extends forwards to form a mounting cavity 13 for mounting the fan system 2, it should be noted that the mounting cavity 13 is used for mounting the fan system 2, but the mounting position of the fan system 2 is not completely limited in the mounting cavity 13, and because the smoke collecting cavity 12 and the mounting cavity 13 are integrated, when the fan system 2 is mounted, the part of the fan system 2 can be positioned in the smoke collecting cavity 12 according to requirements. An oil collecting cup 4 with an upward opening is arranged at the lower edge of the shell 1, and the bottom of the smoke inlet cavity 11 is connected with the oil collecting cup 4. Because the smoke inlet cavity 11 at the lower part of the shell 1 vertically extends, the smoke inlet cavity 11 can be made thinner along the width in the front-back direction and can extend downwards to be sufficiently close to the cooker and a smoke generating source, so that the smoke can be quickly sucked into the smoke inlet cavity to be discharged upwards once being generated, and the smoke suction effect is improved.

In the present embodiment, the fan system 2 is inclined forward from top to bottom and has an air inlet 21 arranged toward the rear and an air outlet 22 arranged toward the upper. An air outlet 22 of the fan system 2 is arranged corresponding to the smoke inlet cavity 11, and a triangular smoke collection area 20 is formed between the rear side of the fan system 2 and the rear wall of the smoke collection cavity 12. The upper end of the triangular smoke collection area 20 is small, and the lower end of the triangular smoke collection area is large, so that quick smoke discharge is realized on the basis of improving the smoke collection effect. The fan system 2 is a double-air-inlet fan system, and the air inlet 21 is a main air inlet of the fan system 2; the front side of the fan system 2 also has an auxiliary air inlet 23. By adopting the double-air-inlet fan system, most oil smoke is sucked away through the main air inlet, and a small amount of oil smoke inevitably enters the mounting cavity at the upper end of the vertical smoke inlet flue, so that the oil smoke can be sucked away through the auxiliary air inlet, and the oil smoke suction effect is improved.

The lower end of the smoke inlet cavity 11 is arranged to be open so as to form a smoke inlet 111, the front wall of the smoke inlet cavity 11 is gradually inclined forwards from top to bottom near the lower edge to form a first diversion surface 112, and the rear wall of the smoke inlet cavity 11 is gradually inclined backwards from top to bottom near the lower edge to form a second diversion surface 113. The front edge of the smoke inlet 111 is arranged higher than the rear edge, and the inclination of the first deflector surface 112 is greater than that of the second deflector surface 113. By adopting the structure, after the oil smoke enters the smoke inlet cavity 11, the oil smoke does not press close to the rear wall in a large quantity and moves upwards, but can quickly and smoothly move upwards along the whole smoke inlet cavity, so that the oil smoke conveying speed is improved, and the noise formed by the oil smoke impacting the inner wall of the smoke inlet cavity is reduced. The front wall of the smoke inlet cavity 11 is gradually inclined forwards from bottom to top near the upper edge to form a third flow guide surface 114, and the rear wall of the smoke inlet cavity 11 is gradually inclined backwards from bottom to top near the upper edge to form a fourth flow guide surface 115, so that the structure is favorable for avoiding the formation of eddy current at the joint of the smoke inlet cavity 11, the smoke collection cavity 12 and the installation cavity 13 due to the sharp change of the flow channel angle, and further avoiding the formation of energy loss and noise. The slope of the third deflector surface 114 is less than the slope of the fourth deflector surface 115.

Example 2:

this example differs from example 1 in that: the fan system 2 of the embodiment is a single-air-inlet fan system, and a baffle plate 24 extending downwards to the front edge of the top of the smoke inlet cavity 11 is arranged at the rear side edge of the fan system 2, and the lower part of the smoke collection cavity 12 and the lower part of the installation cavity 13 are separated into relatively independent spaces by the baffle plate 24. When a single air inlet fan system is adopted, in order to avoid that the oil smoke flowing into the installation cavity 13 cannot be discharged in time, the baffle plate 24 is arranged to prevent the oil smoke from entering the installation cavity 13, and the oil smoke is collected in the smoke collection cavity 12 and discharged in time, so that the oil smoke suction effect is improved.

Claims

1. The utility model provides a range hood, includes casing (1) and locates fan system (2) in this casing (1), its characterized in that: casing (1) lower part has vertical extension's smoke inlet chamber (11), casing (1) upper portion has collection smoke chamber (12) that are linked together with smoke inlet chamber (11), collection smoke chamber (12) extend forward and form installation cavity (13) that are used for installing fan system (2), fan system (2) top-down slopes forward gradually and have towards the air intake (21) of back arrangement, air outlet (22) of arranging up.

2. The range hood of claim 1, wherein: an air outlet (22) of the fan system (2) is arranged corresponding to the smoke inlet cavity (11), and a triangular smoke collection area (20) is formed between the rear side of the fan system (2) and the rear wall of the smoke collection cavity (12).

3. The range hood of claim 2, wherein: the fan system (2) is a double-air-inlet fan system, and the air inlet (21) is a main air inlet of the fan system (2); the front side of the fan system (2) is also provided with an auxiliary air inlet (23).

4. The range hood of claim 2, wherein: the fan system (2) is a single-air-inlet fan system, a baffle (24) extending downwards to the front edge of the top of the smoke inlet cavity (11) is arranged at the rear side edge of the fan system (2), and the lower part of the smoke collecting cavity (12) and the lower part of the installation cavity (13) are separated into relatively independent spaces by the baffle (24).

5. The range hood according to any one of claims 1 to 4, wherein: the lower end of the smoke inlet cavity (11) is arranged in an open mode so as to form a smoke inlet (111), the front wall of the smoke inlet cavity (11) is gradually inclined forwards from top to bottom near the lower edge to form a first flow guide surface (112), and the rear wall of the smoke inlet cavity (11) is gradually inclined backwards from top to bottom near the lower edge to form a second flow guide surface (113).

6. The range hood according to any one of claims 1 to 4, wherein: the front wall of the smoke inlet cavity (11) is gradually inclined forwards from bottom to top near the upper edge to form a third flow guide surface (114), and the rear wall of the smoke inlet cavity (11) is gradually inclined backwards from bottom to top near the upper edge to form a fourth flow guide surface (115).