CN215170908U

CN215170908U - Fan for cooking range

Info

Publication number: CN215170908U
Application number: CN202120667160.7U
Authority: CN
Inventors: 方浪; 黄立壮
Original assignee: YONG QIANG FAN PRODUCTIONS Ltd
Current assignee: Tan Wenliang
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-12-14
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a stove fan, which comprises a volute, an impeller, a mounting plate and a direct current variable frequency motor, wherein an air suction cavity is arranged inside the volute, and the volute is provided with an air inlet and an air outlet which are communicated with the air suction cavity; the impeller is positioned in the air draft cavity, the mounting plate is arranged on the outer side of the air outlet, and the mounting plate is provided with a plurality of mounting holes for mounting with a stove system; the direct-current variable frequency motor is arranged on the outer side of the volute and is provided with a driving shaft, and the driving shaft is connected with the middle part of the impeller. Adopt direct current inverter motor drive impeller to rotate, can reduce the volume of whole kitchen range fan to can let the air outlet pass through mounting panel direct mount on the kitchen range system, let the kitchen range fan can directly be the kitchen range system blast air, reduce the transportation distance of the wind of kitchen range fan, reduce the loss of wind energy, improve the efficiency of blowing, reduce the energy consumption.

Description

Fan for cooking range

Technical Field

The utility model relates to a kitchen range system accessory technical field, in particular to kitchen range fan.

Background

The stove system generally uses liquefied petroleum gas, artificial gas, natural gas and other gas fuels as cookware to perform direct fire heating, and then uses an alternating current fan to blow air for the stove system. The existing alternating current fan is large in size, cannot be directly installed at an air inlet of a stove system, and can be connected with the stove system only by utilizing a connecting pipeline, but the air blowing efficiency of the alternating current fan is reduced by connecting the stove system through the connecting pipeline, so that the air blowing efficiency is low, and the energy consumption is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a stove fan, the efficiency of blowing of stove fan is high, and the energy consumption is low.

The utility model provides a stove fan, which comprises a volute, an impeller, a mounting plate and a direct current variable frequency motor, wherein an air suction cavity is arranged inside the volute, and the volute is provided with an air inlet and an air outlet which are communicated with the air suction cavity; the impeller is positioned in the air draft cavity, the mounting plate is arranged on the outer side of the air outlet, and the mounting plate is provided with a plurality of mounting holes for mounting with a stove system; the direct-current variable frequency motor is arranged on the outer side of the volute and is provided with a driving shaft, and the driving shaft is connected with the middle part of the impeller.

According to the utility model discloses kitchen range fan has following beneficial effect at least: adopt direct current inverter motor drive impeller to rotate, can reduce the volume of whole kitchen range fan to can let the air outlet pass through mounting panel direct mount on the kitchen range system, let the kitchen range fan can directly be the kitchen range system blast air, reduce the transportation distance of the wind of kitchen range fan, reduce the loss of wind energy, improve the efficiency of blowing, reduce the energy consumption.

According to some embodiments of the present invention, the impeller has a rotary plate, a plurality of blades, and a cover, the blades and the cover are located on one side of the rotary plate facing the air inlet, the blades are located between the cover and the rotary plate, the plurality of blades are uniformly distributed on the rotary plate, a ventilation gap is formed between the rotary plate and the inner side wall of the spiral case, the air outlet is communicated with the ventilation gap, a return air gap is formed between the cover and the inner side wall of the spiral case, the return air gap is communicated with the ventilation gap, an air suction notch communicated with the air inlet is formed in the middle of one side of the impeller facing the air inlet, the return air gap is communicated with the air suction notch, an air delivery cavity is formed between the cover and the rotary plate, the air delivery cavity is divided into a plurality of air delivery channels by the plurality of blades, and the air suction notch is located in the middle of the air delivery cavity, the air draft notch is communicated with the ventilation gap through the air delivery channel.

According to the utility model discloses a some embodiments, the spiral case is in income wind gap department is provided with the orientation the first turn-ups that the direction in convulsions chamber was buckled, first turn-ups stretches into convulsions notch.

According to the utility model discloses a some embodiments, the cover is in the edge of convulsions notch is provided with the second turn-ups, the second turn-ups orientation the direction in income wind gap is buckled, the spiral case is provided with and is used for dodging the turn-ups groove of dodging of second.

According to some embodiments of the utility model, the cover is close to the inboard edge of convulsions notch with distance between the carousel is greater than distance between the outside edge of cover and the carousel.

According to some embodiments of the utility model, the kitchen range fan is still including power supply module, power supply module with direct current inverter motor electricity is connected, power supply module sets up the outside of spiral case.

According to some embodiments of the invention, the mounting hole has an elongated portion and a mounting notch.

According to some embodiments of the invention, a plurality of the mounting holes are evenly distributed on the mounting plate.

According to some embodiments of the utility model, the mounting panel is square, the mounting hole has four, four the mounting hole sets up respectively four dog-ear departments of mounting panel.

According to the utility model discloses a some embodiments, the mounting panel is provided with two breachs, every breach intercommunication one the installation opening.

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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram according to an embodiment of the present invention;

figure 2 is a schematic cross-sectional view of an impeller and volute assembled in accordance with an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure view of the first and second flanges according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of the mounting plate and the volute after being assembled according to the embodiment of the present invention.

Reference numerals:

a volute 100, an air suction cavity 110, an air inlet 120, an air outlet 130, a first flange 140, an avoiding groove 150,

Impeller 200, turntable 210, blades 220, cover 230, ventilation gap 240, return air gap 250, draft recess 260, air delivery cavity 270, air delivery channel 280,

Mounting plate 300, mounting hole 310, elongated portion 311, mounting notch 312, notch 320,

A DC variable frequency motor 400, a driving shaft 410,

The power supply assembly 500.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention 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 intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection 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, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including 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 words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, a range fan comprises a volute 100, an impeller 200, a mounting plate 300 and a direct current variable frequency motor 400, wherein an air suction cavity 110 is arranged inside the volute 100, and the volute 100 is provided with an air inlet 120 and an air outlet 130 which are communicated with the air suction cavity 110; the impeller 200 is positioned in the air suction cavity 110, the impeller 200 is provided with a rotating disc 210, a plurality of blades 220 and a cover 230, the blades 220 and the cover 230 are both positioned on one side of the rotating disc 210 facing the air inlet 120, the blades 220 are positioned between the cover 230 and the rotating disc 210, the plurality of blades 220 are uniformly distributed on the rotating disc 210, a ventilation gap 240 is formed between the rotating disc 210 and the inner side wall of the volute 100, the air outlet 130 is communicated with the ventilation gap 240, a return air gap 250 is formed between the cover 230 and the inner side wall of the volute 100, the return air gap 250 is communicated with the ventilation gap 240, the middle part of one side of the impeller 200 facing the air inlet 120 is provided with an air suction notch 260 communicated with the air inlet 120, and the return air gap 250 is communicated with the air suction notch 260; the mounting plate 300 is arranged outside the air outlet 130, and the mounting plate 300 is provided with a plurality of mounting holes 310 for mounting with a stove; the direct current variable frequency motor 400 is arranged at the outer side of the volute 100, the direct current variable frequency motor 400 is provided with a driving shaft 410, and the driving shaft 410 is connected with the middle part of the turntable 210; wherein, have between cover 230 and the carousel 210 and carry wind chamber 270, a plurality of blades 220 divide into a plurality of defeated wind passageways 280 with defeated wind chamber 270, convulsions recess 260 is located the middle part of defeated wind chamber 270, convulsions recess 260 communicates ventilation gap 240 through defeated wind passageway 280. The dc variable frequency fan is more stable than a general ac motor, and the rotation speed of the driving shaft 410 can be adjusted according to the frequency of the input current, so that the rotation speed of the impeller 200 can be adjusted, the flow rate of the wind input from the wind outlet 130 can be directly controlled, and the purpose of adjusting the gear of the fan can be achieved. The cover 230 allows wind to travel from the extraction recess 260 to the ventilation gap 240 in the direction of rotation of the blade 220. The mounting holes 310 allow for the passage of screws or rivets to facilitate the mounting of the range fan on the range.

When the direct current variable frequency motor 400 is used, the impeller 200 is driven to rotate, wind at the wind inlet 120 is sucked into the wind conveying cavity 270 and then conveyed into the ventilation gap 240 from the wind conveying channel 280 between the blades 220, a high-pressure area with high-pressure air is formed at the ventilation gap 240, and a low-pressure area is formed at the wind extraction notch 260; one part of the ventilation gap 240 is communicated with the air outlet 130, so that part of air in the high-pressure area can be sent out from the air outlet 130, and the purpose of air outlet is achieved. Because the air draft notch 260 is communicated with the ventilation gap 240 through the return air gap 250, high-pressure air which is not discharged from the air outlet 130 flows back to the air draft notch 260 along the return air gap 250, the flow rate of the air at the air draft notch 260 can be increased by the return air which is output from the return air gap 250, and the air is better sucked into the air conveying cavity 270, so that the air which is conveyed to the air outlet 130 from the air conveying channel 280 is better supplemented, the air pressure at the air outlet 130 is improved, the flow rate of the air is improved, the flow rate at the air outlet 130 reaches the required flow rate, a stove fan is better used for supplying air to a stove, and the air blowing efficiency is improved. Moreover, the air outlet 130 is directly installed on the stove through the installation plate 300, so that the fan of the stove can directly blow air for the stove, the transportation distance of the air of the fan of the stove is reduced, the loss of wind energy is reduced, the air blowing efficiency is improved, and the energy consumption is reduced. Because the blowing efficiency is improved, more air can be output under the same power, the expected air outlet effect can be obtained by reducing the power of the stove fan, and the stove system can finish daily use by using less electric energy so as to reduce the energy consumption.

This embodiment adopts direct current inverter motor 400 drive impeller 200 to rotate, can reduce the volume of whole kitchen range fan to can let air outlet 130 pass through mounting panel 300 direct mount on the kitchen range system, let the kitchen range fan can directly be the air-blast of kitchen range system, reduce the transportation distance of the wind of kitchen range fan, reduce the loss of wind energy, improve the efficiency of blowing, reduce the energy consumption.

It should be noted that, referring to fig. 3, the volute 100 is provided with a first flange 140 at the air inlet 120, which is bent toward the direction of the air draft cavity 110, and the first flange 140 extends into the air draft notch 260. The first flange 140 extends into the air extraction recess 260 to allow the transfer chamber to better draw air outside the air inlet 120, and allow sufficient air to supplement the air output from the air outlet 130 to allow the range fan to work better.

It should be noted that, referring to fig. 3, the cover 230 is provided with a second flange at the edge of the air draft recess 260, the second flange is bent toward the air inlet 120, and the volute 100 is provided with an avoiding groove 150 for avoiding the second flange. The bent channel is arranged between the return air gap 250 and the air draft notch 260, so that the wind in the ventilation gap 240 can flow back from the return air gap 250 difficultly, the wind pressure of the ventilation gap 240 is improved, the wind can flow out from the air outlet 130 with lower wind pressure better, and the air outlet efficiency of the air outlet 130 is improved. And through setting up the second turn-ups, can let the wind direction that can let from return air clearance 250 backward flow is parallel with the wind direction of income wind gap 120 suction, reduces the production of wadding flow, reduces the loss of wind energy, lets convulsions notch 260 take out the wind better.

It should be noted that, referring to fig. 3, the distance between the inner edge of the cover 230 close to the ventilation recess 260 and the turntable 210 is greater than the distance between the outer edge of the cover 230 and the turntable 210, so that the area of the ventilation channel communicated with the ventilation recess 260 is larger, wind is easier to be input into the ventilation channel, and wind is better sucked into the ventilation channel. Secondly, the included angle between the outer side of the cover 230 and the ventilation gap 240 is smaller, so that the friction between the wind in the ventilation gap 240 and the edge of the cover 230 is smaller, the loss of the wind energy flowing through the return air gap 250 in the ventilation gap 240 is reduced, and the energy consumption is reduced, and the shape of the part of the inner side wall of the volute 100, which is opposite to the cover 230, is matched with the shape of the cover 230, so that the width of the ventilation gap 240 is more uniform, and the loss of the wind energy flowing through the return air gap 250 is reduced.

Referring to fig. 1 and 3, the range fan further includes a power supply assembly 500, and the power supply assembly 500 is electrically connected to the dc variable frequency motor 400. The power supply module 500 is a variable frequency power supply module matched with the dc variable frequency motor 400, and can convert the electricity of the power grid into the electric power required by the dc variable frequency motor 400, so that the dc variable frequency motor 400 can work normally. The variable frequency power supply module matched with the dc variable frequency motor 400 is the prior art and is not described herein again.

Referring to fig. 1, the power module 500 is disposed outside the volute 100, so that the power module 500 is better connected to the dc inverter motor 400 outside the volute 100, and the power module 500 and the dc inverter motor 400 are convenient to mount.

Referring to fig. 1 and 4, the mounting hole 310 includes an elongated portion 311 and a mounting notch 312. The mounting holes 310 are used for passing bolts, and then the mounting plate 300 is mounted on the range, the diameter of the bolt is smaller than the width of the long strip 311, and the bolt can move in the long strip 311. The head of the bolt is smaller than the mounting notch 312, so that the head of the bolt can be inserted into the mounting notch 312 and then moved along the long strip portion 311, a stove fan can be conveniently mounted on a stove, the position between the mounting plate 300 and the bolt can be adjusted, and the mounting position of the stove fan can be conveniently adjusted.

It should be noted that, referring to fig. 1 and 4, a plurality of mounting holes 310 are uniformly distributed on the mounting plate 300, so that the force applied to the mounting plate 300 after being mounted on the stove is more balanced, and the fan of the stove is conveniently fixed. On the basis, the mounting plate 300 is square, the number of the mounting holes 310 is four, the four mounting holes 310 are respectively arranged at four corners of the mounting plate 300, namely, the four corners of the mounting plate 300 can be mounted on a stove through bolts, and a fan of the stove is better fixed.

Referring to fig. 1 and 4, the mounting plate 300 is provided with two notches 320, and each notch 320 communicates with one mounting notch 312. The notches 320 are located at opposite corners of the square mounting plate 300, and the notches 320 allow removal of the bolts to facilitate mounting and dismounting of the mounting plate 300.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

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. A range fan, comprising:

the volute (100) is internally provided with an air suction cavity (110), and the volute (100) is provided with an air inlet (120) and an air outlet (130) which are communicated with the air suction cavity (110);

an impeller (200) located in the suction chamber (110);

a mounting plate (300) disposed outside the air outlet (130), the mounting plate (300) being provided with a plurality of mounting holes (310) for mounting with a range system;

the direct current variable frequency motor (400) is arranged on the outer side of the volute (100), the direct current variable frequency motor (400) is provided with a driving shaft (410), and the driving shaft (410) is connected with the middle of the impeller (200).

2. The range fan of claim 1, wherein: the impeller (200) is provided with a rotary disc (210), a plurality of blades (220) and a cover (230), the blades (220) and the cover (230) are positioned on one side, facing the air inlet (120), of the rotary disc (210), the blades (220) are positioned between the cover (230) and the rotary disc (210), the blades (220) are uniformly distributed on the rotary disc (210), a ventilation gap (240) is formed between the rotary disc (210) and the inner side wall of the volute (100), the air outlet (130) is communicated with the ventilation gap (240), a return air gap (250) is formed between the cover (230) and the inner side wall of the volute (100), the return air gap (250) is communicated with the ventilation gap (240), and an air exhaust notch (260) communicated with the air inlet (120) is formed in the middle of one side, facing the air inlet (120), of the impeller (200), return air clearance (250) intercommunication convulsions recess (260), cover (230) with air transmission chamber (270) have between carousel (210), it is a plurality of blade (220) will air transmission chamber (270) are separated into a plurality of defeated wind passageways (280), convulsions recess (260) are located the middle part of air transmission chamber (270), convulsions recess (260) pass through air transmission passageway (280) intercommunication ventilation clearance (240).

3. The range fan of claim 2, wherein: the volute (100) is provided with a first flanging (140) which is bent towards the direction of the air draft cavity (110) at the air inlet (120), and the first flanging (140) extends into the air draft notch (260).

4. The range fan of claim 2, wherein: the edge of convulsions notch (260) is provided with the second turn-ups cover (230), the second turn-ups orientation the direction of income wind gap (120) is buckled, spiral case (100) are provided with and are used for dodging the turn-ups of second dodge groove (150).

5. The range fan of claim 2, wherein: the distance between the inner edge of the cover (230) close to the air draft notch (260) and the rotating disc (210) is larger than the distance between the outer edge of the cover (230) and the rotating disc (210).

6. The range fan of claim 1, wherein: the power supply assembly (500) is further included, the power supply assembly (500) is electrically connected with the direct current variable frequency motor (400), and the power supply assembly (500) is arranged on the outer side of the volute (100).

7. The range fan of claim 1, wherein: the mounting hole (310) has a long strip (311) and a mounting slit (312).

8. The range fan of claim 7, wherein: the mounting holes (310) are uniformly distributed on the mounting plate (300).

9. The range fan of claim 8, wherein: the mounting panel (300) is square, mounting hole (310) have four, four mounting hole (310) set up respectively four dog-ear department of mounting panel (300).

10. The range fan of claim 9, wherein: the mounting plate (300) is provided with two notches (320), and each notch (320) is communicated with one mounting notch (312).