CN216342899U

CN216342899U - Oil smoke exhaust fan

Info

Publication number: CN216342899U
Application number: CN202122783377.7U
Authority: CN
Inventors: 甄建柱; 解博超; 李清泉
Original assignee: Guangdong Nedfon Air System Co Ltd
Current assignee: Guangdong Nedfon Air System Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-19
Anticipated expiration: 2031-11-12

Abstract

The utility model provides a kind of soot exhaust fan, including: the device comprises a motor base, a motor, a volute, an impeller, a smoke sensor and a controller; the motor base is hollow, the motor is mounted at the top of the motor base, the side surface of the volute is connected to the motor, and an output shaft of the motor extends into the volute; the impeller is arranged in the volute and is connected with an output shaft of the motor; the smoke sensor is arranged in the volute, the controller is arranged in the motor base, and the controller is electrically connected with the motor and the smoke sensor respectively. The oil smoke exhaust fan can detect the concentration of oil smoke in real time, realize automatic adjustment of the rotating speed of the motor and realize energy-saving operation of products to a greater extent.

Description

Oil smoke exhaust fan

Technical Field

The utility model relates to the technical field of exhaust fans, in particular to an oil smoke exhaust fan.

Background

The main purpose of the oil fume exhaust fan is to exhaust oil fume in a kitchen, the oil fume exhaust fan is generally arranged outdoors, an air pipe in the kitchen is connected to the outdoor oil fume exhaust fan, and when the oil fume exhaust fan is started, the oil fume exhaust fan can exhaust the oil fume in the kitchen. The oil smoke exhaust fan has large flow and relatively large power, but the current product mainly takes a fixed-speed machine type as a main part, a customer needs to add an additional frequency converter if the speed needs to be adjusted, and the speed adjusting mode is not intelligent enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil fume exhaust fan to solve the defects in the prior art.

The utility model relates to an oil smoke exhaust fan, comprising: the device comprises a motor base, a motor, a volute, an impeller, a smoke sensor and a controller;

the motor base is hollow, the motor is mounted at the top of the motor base, the side surface of the volute is connected to the motor, and an output shaft of the motor extends into the volute; the impeller is arranged in the volute and is connected with an output shaft of the motor; the smoke sensor is arranged in the volute, the controller is arranged in the motor base, and the controller is electrically connected with the motor and the smoke sensor respectively.

Compared with the prior art, the oil smoke exhaust fan has the advantages that the smoke sensor and the controller are additionally arranged, the concentration of oil smoke can be detected in real time, the rotating speed of the motor can be automatically adjusted, and the energy-saving operation of a product can be realized to a greater extent.

In a preferred or optional embodiment, the oil smoke exhaust fan further comprises a controller mounting shell, the controller mounting shell is detachably connected to the inner wall of the motor base, an accommodating cavity is formed between the controller mounting shell and the inner wall of the motor base, and the controller is mounted in the accommodating cavity.

In a preferred or optional embodiment, the controller mounting shell is provided with a plurality of heat dissipation holes.

In a preferred or optional embodiment, the outer wall of the motor base is provided with an access opening, the access opening corresponds to the position of the accommodating cavity, and the access opening is detachably connected with a sealing cover plate.

In a preferred or alternative embodiment, the cover flap is removably attached to the access opening by a plurality of screws.

In a preferred or alternative embodiment, the impeller is a multi-bladed impeller.

In a preferred or optional embodiment, a connection ring is fixed on the head of the motor, and the motor is connected with the side surface of the volute casing through the connection ring.

In a preferred or optional embodiment, the bottom of the motor base is further connected with a support frame extending along the horizontal direction.

For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the structure of the cooking fume exhauster of the present invention;

FIG. 2 is an exploded view of the cooking fume exhauster of the present invention;

FIG. 3 is a schematic view of the structure of the motor and the motor base of the range hood;

fig. 4 is a schematic structural view of a motor base portion of the range hood of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.

It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "hollow" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1 to 2, the present embodiment provides an oil smoke exhaust fan, which includes a motor base 1, a motor 2, a volute 3, an impeller 4, a smoke sensor 5 and a controller 6.

The motor cabinet 1 is hollow inside, and in this embodiment, the motor cabinet 1 is a cube-shaped structure and has a stable structure. The motor 2 is arranged at the top of the motor base 1, and the supporting legs of the motor 2 can be connected to the top surface of the motor base 1 through bolts.

The volute 3 is a volute 3-shaped housing, the volute 3 is used for guiding air to be conveyed and is provided with an air inlet 31 and an air outlet 32, in this embodiment, the side surface of the volute 3 is connected to the motor 2, and an output shaft of the motor 2 extends into the volute 3. The impeller 4 is arranged in the volute 3 and connected with the output shaft of the motor 2, specifically, the impeller 4 is a multi-wing impeller, the air output of the multi-wing impeller is large, the multi-wing impeller has a good exhaust effect, and the output shaft of the motor 2 is inserted into the middle of the impeller 4 and fixed with the impeller 4 through a shaft sleeve 41. When the motor 2 is started, the impeller 4 is driven to rotate, so that air is sucked from the air inlet 31 and exhausted from the air outlet 32.

The smoke sensor 5 is disposed in the volute 3, and specifically, the smoke sensor 5 is located at the air outlet 32 of the volute 3. The controller 6 is arranged in the motor base 1, and the controller 6 is electrically connected to the motor 2 and the smoke sensor 5 respectively. In this embodiment, the smoke sensor 5 may collect oil smoke concentration information (concentration value) in real time, and transmit the oil smoke concentration information to the controller 6, and the controller 6 may adjust the rotation speed of the motor 2 according to the oil smoke concentration information.

Compared with the prior art, the oil smoke exhaust fan can detect the concentration of oil smoke in real time by adding the smoke sensor 5 and the controller 6, realize the automatic adjustment of the rotating speed of the motor 2, and realize the energy-saving operation of a product to a greater extent, when the concentration of the oil smoke is higher, the controller 6 controls the motor 2 to increase the rotating speed so as to increase the exhaust volume, and when the concentration of the oil smoke is lower, the controller 6 controls the motor 2 to reduce the rotating speed so as to reduce the exhaust volume. In addition, because the oil smoke exhaust fan generally sets up in outdoor, receives weather effects such as rainwater easily, consequently, this scheme sets up controller 6 in motor cabinet 1, both can avoid the collision damage of controller 6 in the transportation, can be rain-proof again for the oil smoke exhaust fan is applicable to outdoor occasion.

The motor 2 may be a speed-regulating motor, and the controller 6 controls the operating speed, and it can be understood that a person skilled in the art can set parameters in the controller 6, so that the controller 6 controls the specific speed corresponding to the motor 2 when receiving different information (concentration value) of the smoke concentration of the oil smoke.

As shown in fig. 3-4, preferably, the range hood of this embodiment further includes a controller mounting case 7, the controller mounting case 7 is detachably connected to the inner wall of the motor base 1, an accommodating cavity is formed between the controller mounting case 7 and the inner wall of the motor base 1, and the controller 6 is mounted in the accommodating cavity. By such arrangement, the controller 6 can be protected by the controller mounting case 7, further preventing the controller 6 from being damaged by external force, and facilitating the mounting of the controller 6. In addition, the controller 6 generates heat during operation, and in order to accelerate the heat dissipation of the controller 6, preferably, the controller mounting case 7 of the present embodiment is provided with a plurality of heat dissipation holes 71 to facilitate heat dissipation.

In order to facilitate the maintenance of the controller 6, further, as shown in fig. 2 and 4, an access opening 8 is provided on an outer wall of the motor base 1 in this embodiment, the access opening 8 corresponds to the position of the accommodating cavity, and a cover plate 81 is detachably connected to the access opening 8. When the controller 6 needs to be overhauled, the cover plate 81 only needs to be disassembled, the controller 6 can be maintained by extending into the access hole 8, and the cover plate 81 is covered on the access hole 8 in normal use. Preferably, the edge of the access opening 8 is provided with a ring of sealing rings (not shown) to enhance the sealing performance between the access opening 8 and the cover plate 81. Specifically, in this embodiment, the sealing plate 81 is detachably connected to the access opening 8 through a plurality of screws, and the connection is firm, but in other embodiments, the sealing plate 81 may also be connected to the access opening 8 through a detachable structure such as a buckle, a magnetic attraction, and the like.

In order to make the connection between the motor 2 and the scroll casing 3 more secure, it is preferable that a connection ring 9 is fixed to a head portion of the motor 2, and the motor 2 is connected to a side surface of the scroll casing 3 through the connection ring 9, as shown in fig. 2.

In order to enhance the stability of the motor base 1, preferably, the bottom of the motor base 1 is further connected with a support frame 10 extending along the horizontal direction, and by adding the support frame 10, the stability of the motor base 1 can be increased, and unnecessary shaking is prevented.

The oil smoke exhaust fan of the utility model has the following advantages:

1. by arranging the smoke sensor and the controller, the concentration of oil smoke can be detected in real time, the rotating speed of the motor can be automatically adjusted, the energy-saving operation of the product can be realized to a greater extent, and the smoke sensor and the controller are more energy-saving and efficient;

2. through being provided with controller installation shell, conveniently install the controller, protect the controller, controller installation shell is provided with the louvre, and heat dispersion is good.

3. The connection ring is arranged, so that the connection between the motor and the volute is firmer;

4. through set up the support frame in motor cabinet bottom for overall structure is more stable.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. An oil smoke exhaust fan, characterized by comprising:

the device comprises a motor base, a motor, a volute, an impeller, a smoke sensor and a controller;

2. The cooking fume exhaust fan of claim 1 wherein:

still include a controller installation shell, controller installation shell detachably connect in the inner wall of motor cabinet, controller installation shell with form a holding chamber between the inner wall of motor cabinet, the controller install in the holding intracavity.

3. The cooking fume exhaust fan of claim 2, wherein:

and the controller mounting shell is provided with a plurality of heat dissipation holes.

4. The cooking fume exhaust fan of claim 2, wherein:

the outer wall of motor cabinet is provided with a maintenance mouth, the maintenance mouth corresponds to the position in holding chamber, maintenance mouth detachably is connected with a apron.

5. The cooking fume exhaust fan of claim 4, wherein:

the cover sealing plate is detachably connected to the access hole through a plurality of screws.

6. The cooking fume exhaust fan of claim 1 wherein:

the impeller is a multi-wing impeller.

7. The cooking fume exhaust fan of claim 1 wherein:

the head of the motor is fixed with a connecting ring, and the motor is connected with the side surface of the volute through the connecting ring.

8. The cooking fume exhaust fan according to any one of claims 1-7, wherein:

the bottom of the motor base is also connected with a support frame extending along the horizontal direction.