CN217999903U - Fan assembly and blowing device - Google Patents

Abstract

The invention discloses a fan assembly and a blowing device, and relates to the field of air outlet equipment, wherein the technical scheme is characterized by comprising a shell, a volute and an impeller, wherein a concave part which is concave towards the inner side of the shell is arranged on the outer side surface of the shell; the volute is provided with a plurality of axially layered and mutually independent air channels, different air channels are respectively provided with an air outlet and a ventilation opening, and the ventilation openings are arranged in the concave part; the impeller is at least provided with a first blade and a second blade which have opposite rotation directions, and the first blade and the second blade with different rotation directions are matched with different air channels. The technical effect is that the ventilation port structure is arranged in the concave part, the protruding part of the ventilation port does not exceed the outer side surface of the shell, and the length or the width of the box body is not increased under the same function, so that the installation is convenient. The first blade and the second blade of the impeller can realize air outlet or air exchange when rotating positively and negatively, realize the switching of different air supply states and reduce the cost.

Description

Fan assembly and blowing device

Technical Field

The invention relates to the field of air outlet equipment, in particular to a fan assembly and an air blowing device.

Background

Domestic air heating or ventilation devices are often required to be mounted on a ceiling or building element. The installation carrier of the warming equipment is a box body, the ventilation opening is usually arranged at the outer side of the box body, and for the convenience of connecting with an external pipeline, a connecting pipe which protrudes out of the box body is usually adopted. The existence of connecting pipe has increased the whole length of box, when needs installation, easily interferes with the position of installation, causes the difficulty in the installation.

Disclosure of Invention

The invention aims to provide a fan assembly which has the advantages of convenience in connection and easiness in disassembly and assembly.

The technical purpose of the invention is realized by the following technical scheme.

A fan assembly, comprising:

the shell is at least provided with an outer side surface, and a sunken part sunken towards the inner side of the shell is arranged on the outer side surface;

the volute is arranged in the shell and is provided with a plurality of axially layered and mutually independent air channels, different air channels are respectively provided with an air outlet and a ventilation opening, and the ventilation opening is arranged in the depressed part;

the impeller at least comprises a first blade and a second blade which have opposite rotation directions, and the first blade and the second blade with different rotation directions are matched with different air channels.

Further setting: and a guide plate is arranged in the air duct, one end of the guide plate is arranged at the air vent or close to the air outlet and the air vent, and the other end of the guide plate extends to one side close to the impeller.

Further setting: the thicker the air duct, the higher the axial height of the impeller.

Further setting: the air door is arranged in the air duct or at the air exchange opening or at the air outlet.

Further setting: the air door is an automatic air door or an electric control air door.

Further setting: the ventilation port is integrally connected with the shell or detachably connected with the shell.

Further setting: the transfer ports are oblique or perpendicular or parallel to the outer side surface.

Further setting: the air ducts in the two air ducts are different in number, and one air duct in each air duct is matched with one air vent, or two or more air ducts are matched with one air vent.

Further setting: the impeller is matched with an air duct with an air exchange port and at least comprises a part of first blades and a part of second blades.

Another object of the present invention is to provide a blowing device with the above fan assembly.

In conclusion, the invention has the following beneficial effects:

first, since the housing of the present invention has a partially recessed recess, and the airing port structure is disposed in the recessed recess, the protruding portion of the airing port does not exceed the outer side surface of the housing, and the length or width of the box body is not increased under the same function, which facilitates the installation. Especially, the installation needs dodge with the fossil fragments to furred ceiling department, mutual noninterference.

Second, the present invention has different air channels and first and second blades adapted to the different air channels, when the impeller rotates in the forward direction, the second blade cannot extrude air, and the surface of the first blade can extrude air to form flowing air flow to supply air to the indoor. When the impeller rotates reversely, the surface of the second blade can extrude air to form flowing air flow which is sent out from the ventilation port, so that different air supply states are switched, double air outlet switching is realized by a single impeller, an air door and a motor do not need to be additionally arranged, and the cost is reduced.

Thirdly, the present invention may further include a first impeller and a second impeller having different rotation directions on the impeller corresponding to the duct having the ventilation port, wherein when the impeller rotates in a forward direction, a part of blades of the second impeller operate, the first blade can form a flowing air flow, and the ventilation port can discharge a small amount of air while blowing air into the room, thereby increasing a ventilation function in an air blowing state.

Drawings

FIG. 1 is a schematic structural view of a fan assembly;

FIG. 2 is a schematic structural view of an impeller;

FIG. 3 is a schematic structural view of an upper duct and an outlet;

FIG. 4 is a schematic view of the lower duct and transfer ports;

fig. 5 is a schematic view of the structure of the damper.

In the figure, 100, the housing; 101. an air outlet; 102. a ventilation port; 103. an outer side surface; 104. a recessed portion;

200. a volute; 300. an air duct; 301. a baffle; 302. a damper; 400. an impeller; 401. a first blade; 402. a second blade; 500. a heating device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

First preferred embodiment:

a fan assembly, as shown in FIG. 1, includes a housing 100 and a volute 200 and an impeller 400 in the housing 100, wherein the volute 200 may be a part of the housing 100 or a part separately disposed in the housing 100. Can be integrally arranged or can be detachably connected.

In the present embodiment, the volute 200 is disposed inside the housing 100, the volute 200 has a plurality of axially layered and independent air channels 300, and as shown in the figure, the upper air channel 300 is configured with an air outlet 101, and the lower air channel 300 is configured with a ventilation opening 102. The number of the air outlets 101 and the number of the air exchanging ports 102 may be set according to the requirement of a user, and the number of the air ducts 300 in the two air ducts 300 may be the same or different. In this embodiment, one layer may be provided for each layer.

In this embodiment, one air duct 300 of the lower layer is adapted to one air exchanging port 102, the air duct 300 of the lower layer may be two or more air ducts 300, and a plurality of air ducts 300 are also adapted to one air exchanging port 102.

As shown in fig. 1-4, the air conditioner further includes an impeller 400, the impeller 400 at least has a first blade 401 and a second blade 402 with opposite rotation directions, the first blade 401 and the second blade 402 with different rotation directions are adapted to different air ducts 300, and according to the direction shown in the figure, the upper air duct 300 is adapted to the first blade 401 and is adapted to the air outlet 101. The lower air duct 300 is fitted with the second vane 402 and fitted with the ventilation opening 102. When the impeller 400 rotates in the forward direction, the second blade 402 cannot compress air, and the surface of the first blade 401 compresses air to form a flowing airflow, thereby blowing air into the room. When the impeller 400 rotates in the reverse direction, the surface of the second blade 402 can push air to form a flowing air flow, and the air flow is sent out from the ventilation opening 102, thereby realizing switching between different air sending states. The two air ducts 300 realize two states of air outlet or air exchange, and the same impeller 400 realizes double air outlet switching.

In addition, the impeller 400 fitted to the lower air duct 300 may have a part of the first blades 401 arranged on the circumference. When the impeller 400 rotates in the forward direction, a part of the blades of the second impeller 400 operates, and the first blades 401 form a flowing air flow to blow air into the room, and the ventilation opening 102 keeps a small amount of air discharged, thereby increasing the ventilation function in the air blowing state. Especially, when the bathroom heater or the air conditioner and other spaces needing to be sealed are used for refrigerating and blowing or heating and blowing, the sealed space can be more breathable due to proper ventilation, and user experience is better.

Generally, the air output and the ventilation amount can be determined by changing the size of the air duct 300 and the size of the air outlet 101 or the ventilation opening 102. Therefore, the thicker the air duct 300, the higher the axial height of the impeller 400 corresponding to the air duct 300 is, as shown in the figure, the upper air duct 300 is adapted to the air outlet 101, the air outlet volume required is relatively large, and the lower air duct 300 is adapted to the ventilation port 102, and the ventilation air volume can be relatively small, so that the axial length of the first impeller 400 is longer, the axial length of the formed first blade 401 is longer, and the air volume which can be formed is also larger.

In this embodiment, the cross-sectional shape of the housing 100 may be circular or rectangular or other irregular shape. Taking the figure as an example, the casing 100 may be divided into a length direction and a width direction, and one surface, for example, a bottom surface of the casing 100 is used as a surface for arranging the air outlet 101; the other surface, for example, the outer surface 103 in the horizontal direction serves as a surface on which the ventilation ports 102 are provided.

Referring to fig. 1, a recess 104 recessed inward of the housing 100 is provided on the outer surface 103, and the ventilation port 102 is provided in the recess 104. The shape of the recess 104 may be any shape, such as rectangular, circular, arc, oval. The ventilation opening 102 disposed in the recess 104 may be inclined or vertical or horizontal, and the extension of the ventilation opening 102 does not exceed the outer surface 103 of the housing 100.

The transfer ports 102 are integrally or removably connected to the housing 100. The ventilation opening 102 may correspond to one air duct 300 or a plurality of air ducts 300 in the lower layer, or one ventilation opening 102 may be provided for each air duct 300.

As shown in fig. 3, when the thickness of the air duct 300 adapted to the air outlet 101 on the upper layer becomes thicker, a guide plate 301 needs to be additionally arranged in the air duct 300, one end of the guide plate 301 is arranged at the air outlet 101 or close to the air outlet 101, and the other end extends to the side close to the impeller 400. The air flow is more uniformly conveyed to the air outlet 101 and is prevented from being gathered and being blown out of the side wall of the air duct 300. The number of the baffles 301 may be one or more, and the number of the baffles 301 to be arranged is determined according to the thickness of the air duct 300. Similarly, according to the lower air duct 300, a baffle plate 301 may be provided, one end of which extends to the ventilating opening 102 or a position close to the ventilating opening 102, and the other end of which extends to a side close to the impeller 400.

As shown in fig. 5, the air door 302 is further included, and is disposed in the lower air duct 300, and the air door 302 is an automatic air door 302 or an electrically controlled air door 302 for controlling the air volume. Of course, the upper air duct 300 may also be provided with a damper 302, or the ventilation opening 102 or the air outlet 101 may also be provided with a damper 302. The positions are determined according to different arrangement modes of different structures.

The second embodiment is an air blowing device with the fan assembly. The blowing device can be a wind heating device such as a bath heater or a warmer. The heating device 500 may be disposed at the air outlet 101 or in the air duct 300 correspondingly connected to the air outlet 101.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims.

Claims (10)

1. A fan assembly, comprising:

a housing (100) having at least one outer side surface (103), the outer side surface (103) being provided with a recessed portion (104) recessed inward of the housing (100);

the volute (200) is arranged in the shell (100) and is provided with a plurality of axially layered and mutually independent air channels (300), different air channels (300) are respectively provided with an air outlet (101) and a scavenging port (102), and the scavenging port (102) is arranged in the concave part (104);

the impeller (400) at least comprises a first blade (401) and a second blade (402) with opposite rotation directions, and the first blade (401) and the second blade (402) with different rotation directions are matched with different air channels (300).

2. The fan assembly of claim 1, wherein: a guide plate (301) is arranged in the air duct (300), one end of the guide plate (301) is arranged at the air exchange port (102) or close to the air outlet (101) and the air exchange port (102), and the other end of the guide plate extends to one side close to the impeller (400).

3. The fan assembly of claim 1, wherein: the thicker the air duct (300), the higher the axial height of the impeller (400) corresponding to the air duct.

4. The fan assembly of claim 1, wherein: the air conditioner also comprises an air door (302) which is arranged in the air duct (300) or at the ventilation opening (102) or the air outlet (101).

5. The fan assembly of claim 4, wherein: the air door (302) is an automatic air door (302) or an electric control air door (302).

6. The fan assembly of claim 1, wherein: the ventilation opening (102) is integrally or detachably connected with the shell (100).

7. The fan assembly of claim 1, wherein: the ventilation opening (102) is inclined or perpendicular or parallel to the outer side surface (103).

8. The fan assembly of claim 1, wherein: the air ducts (300) in the two air ducts (300) have different numbers, and one air duct (300) in each layer is matched with one air vent (102), or two or more air ducts (300) are matched with one air vent (102).

9. The fan assembly of claim 1, wherein: the impeller (400) of the air duct (300) with the ventilation opening (102) is matched with the impeller, and at least a part of the first blade (401) and a part of the second blade (402) are arranged on the impeller.

10. The utility model provides a blast apparatus which characterized in that: with a fan assembly according to any of claims 1 to 9.

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