CN218955027U

CN218955027U - Mixed flow fan, fan assembly and air conditioner

Info

Publication number: CN218955027U
Application number: CN202223219099.3U
Authority: CN
Inventors: 董明珠; 池晓龙; 刘煜; 夏凯
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-02
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a mixed flow fan, a fan assembly and an air conditioner, wherein the mixed flow fan comprises a flow guiding and air collecting piece, a fan blade assembly, a motor assembly and a racemization blade, and the fan blade assembly and the motor assembly are connected to the racemization blade through a fastener; the diversion gas-collecting piece is detachably connected with the racemization blade. The mixed flow fan, the fan assembly and the air conditioner effectively solve the problem of inconvenient maintenance of the mixed flow fan in the prior art.

Description

Mixed flow fan, fan assembly and air conditioner

Technical Field

The utility model relates to the technical field of fans, in particular to a mixed flow fan, a fan assembly and an air conditioner.

Background

Compared with the traditional air duct machine, the air duct machine with the reverse air supply realizes cold air side supply and hot air downward supply, and has better comfort; however, the reversing system adopts an integral multi-fan connected structure, and the fans commonly adopt mixed-flow fans, the structure is complicated and limited by a mould, a process, production conditions and the like, and the motor and the fans are generally not easy to overhaul, clean and the like.

The common main method is that the whole fan part is integrally pulled out from the whole machine, and then the whole movement mechanism is disassembled, so that the fan and the motor part thereof are overhauled. Such a solution requires a large service space and is disadvantageous for after-market reassembly to ensure overall assembly accuracy.

In summary, the mixed flow fan in the prior art is inconvenient to maintain.

Disclosure of Invention

The embodiment of the utility model provides a mixed flow fan, a fan assembly and an air conditioner, which are used for solving the problem of inconvenient maintenance of the mixed flow fan in the prior art.

In order to achieve the above purpose, the utility model provides a mixed flow fan, which comprises a flow guiding and collecting piece, a fan blade assembly, a motor assembly and a racemization blade, wherein the fan blade assembly and the motor assembly are connected to the racemization blade through a fastener; the diversion gas-collecting piece is detachably connected with the racemization blade.

Further, the diversion gas collecting piece is clamped with the racemization blade.

Further, the mixed flow fan further comprises: the gas collecting outer cover is detachably sleeved on the diversion gas collecting piece; a wire passing groove is arranged in the gas collecting outer cover.

Further, a sealing element is connected between the gas collecting outer cover and the diversion gas collecting element.

Further, one side or two sides of the gas collecting outer cover are provided with connecting pieces, and the connecting pieces can be mutually buckled.

Further, the connecting piece is provided with a wire passing channel, and the wire passing channels on the two connecting pieces which are mutually buckled are mutually communicated.

Further, the connecting pieces are provided with clamping structures, and the connecting pieces are mutually buckled through the clamping structures.

Further, the connecting pieces are provided with positioning structures, and the connecting pieces are buckled and positioned through the positioning structures.

Further, the gas collecting outer cover is clamped on the diversion gas collecting piece through the connecting piece.

Further, be provided with first binding post on the connecting piece, be provided with the second binding post on the fan blade subassembly, first binding post and second binding post butt joint and electric connection.

Further, the two connecting pieces which are buckled with each other are fixed through screws.

Further, connecting ribs are arranged on the periphery of the racemization blade, and limiting ribs are arranged on the connecting ribs; the outer cover of the racemization blade is provided with an outer cover, the outer cover is provided with a limiting groove, and the limiting rib is in limiting fit with the limiting groove.

Further, a plurality of locating pieces corresponding to the end parts of the racemization blades are arranged on the outer cover, the locating pieces are arranged at intervals along the circumferential direction of the end parts of the racemization blades, and the racemization blades are matched with the locating pieces in a locating mode.

Further, a plurality of grooves are formed in the side wall, facing the racemization blades, of the outer cover, the tail ends of the blades of the racemization blades are arranged in the grooves in a one-to-one correspondence mode, protruding points are arranged on the tail ends of the blades of the racemization blades, and gaps are formed between the protruding points and the bottoms of the grooves.

Further, a first wire passing hole is formed between the racemization blade and the motor component, a second wire passing hole is formed between the racemization blade and the flow guiding and gas collecting piece, and a wire passing through the first wire passing hole and the second wire passing hole is positioned between the two blades of the racemization blade.

According to another aspect of the present utility model, there is provided a fan assembly including a plurality of mixed flow fans, the mixed flow fans being the mixed flow fans described above; the mixed flow fan also comprises a gas collecting outer cover which is detachably sleeved on the diversion gas collecting piece; the gas collecting outer cover is internally provided with a wire passing groove, one side or two sides of the gas collecting outer cover are provided with connecting pieces, and the connecting pieces can be mutually buckled; all mixed flow fans are sequentially connected, all mixed flow fans can simultaneously rotate and change the direction of an air outlet, the rotation axes of all mixed flow fans are collinear, and two adjacent mixed flow fans are connected through a connecting piece.

According to another aspect of the present utility model, there is provided an air conditioner including the above-described blower assembly.

Further, the air conditioner is an air duct machine.

When the mixed flow fan is maintained, after the diversion gas collecting piece and the racemization blades are disassembled, the fan blade assembly and the motor assembly are taken out while the racemization blades are taken out, and the fan blade assembly, the motor assembly and the racemization blades can be independently and modularly overhauled, so that the whole machine is convenient to clean and maintain, and the maintenance is more convenient. And the operation on the installation position is not needed, for example, maintenance personnel do not need to work on the ceiling or the wall, thereby being convenient for maintenance.

Drawings

FIG. 1 is a schematic exploded view of a mixed flow fan according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a mixed flow fan in one direction according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of a mixed flow fan in another direction according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a modular connection of a mixed flow fan according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a portion of a mixed flow fan according to an embodiment of the present utility model in a modular connection;

FIG. 6 is an inside schematic view of one of the constructions of the connection member of the mixed flow blower according to the embodiment of the utility model;

FIG. 7 is an outside schematic view of one of the constructions of the connection member of the mixed flow blower according to the embodiment of the utility model;

FIG. 8 is an inside schematic view of another configuration of a connector for a mixed flow fan according to an embodiment of the present utility model;

FIG. 9 is an outside schematic view of another configuration of a connector for a mixed flow fan according to an embodiment of the present utility model;

FIG. 10 is a schematic structural view of an outer cover of the mixed flow fan according to the embodiment of the present utility model;

FIG. 11 is a perspective view of a radial blade of a mixed flow fan in one direction according to an embodiment of the present utility model;

FIG. 12 is an enlarged view of a portion of the racemic blade of FIG. 11;

FIG. 13 is a schematic perspective view of a mixed flow fan in another direction of a swirl vane of the embodiment of the present utility model;

FIG. 14 is a schematic structural view of a fan assembly according to an embodiment of the present utility model.

Detailed Description

The utility model will now be described in further detail with reference to the drawings and specific examples, which are not intended to limit the utility model thereto.

Referring to fig. 1 to 13, according to an embodiment of the present utility model, there is provided a mixed flow fan including a flow guide gas collecting member 10, a fan blade assembly 20, a motor assembly 30, and a racemization blade 40, the fan blade assembly 20 and the motor assembly 30 being connected to the racemization blade 40 by a fastener; the flow-guiding gas-collecting member 10 is detachably connected with the swirl vanes 40.

Further, the diversion and collection piece 10 is clamped with the racemization blade 40. So that the fan blade assembly can be independently and modularly overhauled by disassembling the buckle 101 between the racemization blade and the diversion and gas collection piece, see fig. 1 and 4.

Traditional some fan technical scheme adopts the shape of fixing the leaf to the line rubber cover design of crossing of motor, therefore is comparatively troublesome when dismantling and maintaining the motor to the fixing leaf of rubber is because inside needs to walk the power wire rod and consequently the blade is generally thicker than the blade of moulding plastics next to, has great influence (such as pressure distribution is uneven, produces great vortex, and then fan noise, tone quality, efficiency etc. have less adverse effect) to whole fan aerodynamic performance. And the stator blade wiring is routed from the outer side of the fan, so that the space size required by the reversing of the fan can be increased.

In order to solve the above-mentioned problem of walking in the prior art, the utility model improves, the mixed flow fan also includes the gas-collecting outer cover 50, the gas-collecting outer cover 50 is detachably sleeved on the air-guiding gas-collecting member 10; the gas collecting housing 50 is provided with a wire passing groove 51 inside. Wires inside the mixed flow fan are routed through the wire passing groove 51, so that the internal space is saved, the modularized maintenance is not affected, and the installation of other parts is not affected due to shielding of the wires during maintenance and installation.

A sealing member 52 is connected between the gas collecting housing 50 and the flow guiding gas collecting member 10. There is a gap between the gas collection housing 50 and the flow directing gas collection member 10 that has some resistance to gas flow and even causes a risk of abnormal noise, thus filling the seal between the two. The annular seal sponge of the seal 52 in this embodiment prevents leakage of the air flow by sticking the seal sponge. By eliminating this gap, the intake passage resistance of the collector is reduced, reducing losses. The problem of poor air tightness caused by the need of modularized disassembly in the whole technical scheme is solved.

Preferably, as shown in fig. 5 to 9, one or both sides of the gas collecting housing 50 are provided with connection members 60, and the connection members 60 may be fastened to each other. At least one of the connection members 60 is provided at one side of the gas collecting outer cover 50, and the connection member 60 is a male buckle or a female buckle. If one connector 60 is provided on each side of the connector 60, one of the connectors 60 is a pin and the other is a box. The connecting pieces can also be universal buckles or buckles capable of being mutually butted, so that the two connecting pieces can be mutually buckled after being butted. The function of the connecting piece 60 is to enable the mixed flow fans to be connected in a modularized manner, and the mixed flow fans can be combined in number through the connecting piece, for example, in the embodiment of the utility model, three mixed flow fans are combined into one fan assembly, as shown in fig. 4, two sides of one double-blade mixed flow fan are provided with connecting pieces, one side of one single-blade mixed flow fan is provided with a connecting piece, and the single-blade mixed flow fan is connected to the double-blade mixed flow fan through the buckling of the connecting piece, so that the combination of the three mixed flow fans is formed. Of course, the specific number and the matching mode of the connecting pieces can be specifically selected according to the actual situation.

In order to unify the wiring of the multiple mixed-flow fans, in this embodiment, the connecting piece 60 is provided with the wire passing channels 61, and the wire passing channels 61 on the two connecting pieces 60 that are mutually buckled are mutually communicated. The mixed flow fans connected in a modularized manner can lead the internal motor wires and the like to be routed from the wire passing channel 61, the wires are uniformly led to one end through the wire passing grooves in the gas collecting outer cover, and then the wires are connected with the circuit board 102, so that the wire fixing of all the mixed flow fans is completed, and the specific reference is made to fig. 5.

The connecting pieces 60 are provided with clamping structures 62, and the connecting pieces 60 are mutually buckled through the clamping structures 62. The engaging structure 62 may be a snap protrusion as shown in fig. 7 or a snap groove as shown in fig. 8. The clamping structure 62 facilitates modular connection of the mixed flow fan, and is simple to operate and convenient to detach.

The connecting pieces 60 are provided with positioning structures 63, and the connecting pieces 60 are buckled and positioned through the positioning structures 63. The positioning structure can be an annular positioning groove shown in fig. 7 or an annular positioning convex structure shown in fig. 8 and 9, and is convenient for positioning when two connecting pieces are in butt joint, so that the installation efficiency is higher.

The gas collecting housing 50 is clamped on the diversion gas collecting member 10 through a connecting piece 60. Referring to fig. 8, the gas collecting outer cover is clamped with the gas guiding and collecting piece through the buckle 103, so that the gas guiding and collecting piece and the gas collecting outer cover are conveniently detached, and the gas guiding and collecting piece and the gas collecting outer cover are separated when the integral structure is conveniently detached.

The connecting piece 60 is provided with a first connecting terminal (not shown), the connecting piece is provided with a fixing seat for installing the first connecting terminal, the fan blade assembly 20 is provided with a second connecting terminal 104, and the first connecting terminal is in butt joint with the second connecting terminal 104 and is electrically connected. When the two wiring terminals are connected, the power control input of the motor, the main board, the sensor and the like is realized.

The two connectors 60 that are fastened to each other are fixed by screws. Therefore, the connection relation of the two connecting pieces can be stabilized, and the modular connection of the mixed flow fan is more stable.

The periphery of the racemization blade 40 is provided with a connecting rib 41, and the connecting rib 41 is provided with a limit rib 42; the outer cover 70 is covered outside the racemization blade 40, the outer cover 70 is provided with a limit groove 71, and the limit rib 42 is in limit fit with the limit groove 71. The spacing rib 42 and the spacing groove 71 are structured and cooperate to support the entire fan blade assembly. The connecting rib 41 is an annular rib, see fig. 10 and 13. The spacing muscle 42 is a plurality of and the interval sets up, and spacing muscle 42 is protruding towards racemization blade center, and spacing muscle is the bar muscle.

The outer cover 70 of the mixed flow fan is provided with a plurality of positioning pieces 72 corresponding to the end parts of the racemization blades 40, the positioning pieces 72 are arranged at intervals along the circumferential direction of the end parts of the racemization blades 40, and the racemization blades 40 are matched with the positioning pieces 72 in a positioning mode. The structure and cooperation of the racemization vanes 40 and the positioning members 72 further support the vane assembly.

As shown in fig. 10, a plurality of grooves 73 are formed in the side wall of the outer cover 70 facing the racemization blades 40, the blade ends of the racemization blades 40 are arranged in the grooves 73 in a one-to-one correspondence manner, protruding points 43 are formed in the blade ends of the racemization blades 40, and gaps are formed between the protruding points 43 and the bottoms of the grooves 73. Therefore, the contact area between the tail end of the blade and the wall surface of the groove is further reduced, and the protruding part of the convex point is lower, and the groove depth of the groove is larger than the height of the convex point, so that the aerodynamic performance of the fan is also ensured under the abnormal condition of reducing thermal expansion and cold contraction. As the racemization blade cover presents an inverted cone shape, the convex points are further utilized to realize the support of the blade assembly. At this time, the fan blade component and the racemization blades are connected into a whole; whether the tail vertebrae need to be assembled first or whether the tail vertebrae need to be assembled last by the whole fan component.

A first wire passing hole 81 is formed between the racemization blade 40 and the motor assembly 30, a second wire passing hole 82 is formed between the racemization blade 40 and the diversion and collection piece 10, and a wire 83 passing through the first wire passing hole 81 and the second wire passing hole 82 is positioned between the two blades of the racemization blade 40. The lead 83 is just positioned in the middle (middle) of the two blades of the racemization blade, and a thinner wire is adopted to reduce the flow field disturbance effect in the flow channel so as to ensure the fan performance and good noise.

The racemization blade and the diversion gas collecting piece are matched with each other through the supporting ribs on the circumferential surface and in the height direction, so that abnormal noise caused by expansion with heat and contraction with cold is reduced, further, a plurality of stop ribs are arranged on the racemization blade, protruding points are arranged at the buckling positions of the outer cover, the connecting piece, the double-side pressing plate, the single-side pressing plate and the like are also provided with a plurality of protruding ribs, the assembly area of the parts with the characteristics and the matching is further reduced, and the risks of abnormal deformation and abnormal noise are improved due to expansion with heat and contraction with cold. When the fan needs to be overhauled, for example, when a certain fan motor is damaged or needs to be cleaned, only the outer cover and the pressing plate outside the racemization blade are required to be disassembled, and the fan assembly or part of the racemization blade and the fan are taken out; the motor assembly can be detached by further detaching the motor base.

Referring to fig. 14, the present utility model further provides an embodiment of a fan assembly, where the fan assembly includes a plurality of mixed-flow fans, and the mixed-flow fans are the mixed-flow fans of the above embodiment.

The mixed flow fan further comprises a gas-collecting outer cover 50, and the gas-collecting outer cover 50 is detachably sleeved on the diversion gas-collecting piece 10; the inside of the gas-collecting outer cover 50 is provided with a wire passing groove 51, one side or two sides of the gas-collecting outer cover 50 are provided with connecting pieces 60, and the connecting pieces 60 can be mutually buckled; all mixed flow fans are connected in sequence, all mixed flow fans can rotate simultaneously and change the direction of an air outlet, the rotation axes of all mixed flow fans are collinear, and two adjacent mixed flow fans are connected through a connecting piece 60.

The utility model also provides an embodiment of the air conditioner, which comprises the fan assembly of the embodiment. Preferably, the air conditioner is an air duct machine.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

Of course, the above is a preferred embodiment of the present utility model. It should be noted that it will be apparent to those skilled in the art that several modifications and adaptations can be made without departing from the general principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. A mixed flow fan comprises a diversion gas collecting piece (10), a fan blade component (20), a motor component (30) and a racemization blade (40), and is characterized in that,

the fan blade assembly (20) and the motor assembly (30) are connected to the racemization blades (40) through fasteners;

the diversion and gas collection piece (10) is detachably connected with the racemization blade (40).

2. The mixed flow fan as claimed in claim 1, wherein,

the diversion and gas collection piece (10) is clamped with the racemization blade (40).

3. The mixed flow fan of claim 1, further comprising:

the gas collecting outer cover (50) is detachably sleeved on the diversion gas collecting piece (10);

a wire passing groove (51) is formed in the gas collecting outer cover (50).

4. A mixed flow fan according to claim 3, characterised in that a seal (52) is connected between the gas collection housing (50) and the flow-directing gas collection member (10).

5. The mixed flow fan according to claim 3, wherein,

one side or two sides of the gas collecting outer cover (50) are provided with connecting pieces (60), and the connecting pieces (60) can be mutually buckled.

6. The mixed flow fan as claimed in claim 5, wherein,

the connecting piece (60) is provided with a wire passing channel (61), and the wire passing channels (61) on the two connecting pieces (60) which are mutually buckled are mutually communicated.

7. The mixed flow fan according to claim 5, wherein the connecting pieces (60) are provided with clamping structures (62), and the connecting pieces (60) are mutually buckled through the clamping structures (62).

8. The mixed flow fan according to claim 5, wherein a positioning structure (63) is provided on the connecting pieces (60), and the connecting pieces (60) are fastened and positioned by the positioning structure (63).

9. The mixed flow fan according to claim 5, wherein the gas collection housing (50) is clamped on the flow guiding gas collection member (10) through the connecting member (60).

10. The mixed flow fan according to claim 5, wherein a first connection terminal is provided on the connector (60), a second connection terminal is provided on the fan blade assembly (20), and the first connection terminal is in butt joint with and electrically connected to the second connection terminal.

11. The mixed flow fan according to claim 5, wherein two of the connectors (60) that are fastened to each other are fastened by screws.

12. The mixed flow fan according to claim 1, wherein a connecting rib (41) is arranged on the periphery of the racemization blade (40), and a limiting rib (42) is arranged on the connecting rib (41);

the outer cover of the racemization blade (40) is provided with an outer cover (70), the outer cover (70) is provided with a limiting groove (71), and the limiting rib (42) is in limiting fit with the limiting groove (71).

13. The mixed flow fan according to claim 12, wherein a plurality of positioning members (72) corresponding to the end portions of the racemization blades (40) are arranged on the outer cover (70), the positioning members (72) are arranged at intervals along the circumferential direction of the end portions of the racemization blades (40), and the racemization blades (40) are matched with the positioning members (72) in a positioning mode.

14. The mixed flow fan according to claim 13, wherein a plurality of grooves (73) are formed in the side wall, facing the racemization blades (40), of the outer cover (70), blade ends of the racemization blades (40) are arranged in the grooves (73) in a one-to-one correspondence mode, protruding points (43) are arranged on the blade ends of the racemization blades (40), and gaps are formed between the protruding points (43) and the bottoms of the grooves (73).

15. The mixed flow fan according to claim 13, characterized in that a first wire passing hole (81) is arranged between the racemization blade (40) and the motor assembly (30), a second wire passing hole (82) is arranged between the racemization blade (40) and the flow guiding and collecting piece (10), and a wire (83) passing through the first wire passing hole (81) and the second wire passing hole (82) is arranged between two blades of the racemization blade (40).

16. A fan assembly comprising a plurality of mixed flow fans, the mixed flow fans being as claimed in any one of claims 1 to 15;

the mixed flow fan further comprises a gas collection outer cover (50), and the gas collection outer cover (50) is detachably sleeved on the diversion gas collection piece (10); the gas collecting outer cover (50) is internally provided with a wire passing groove (51), one side or two sides of the gas collecting outer cover (50) are provided with connecting pieces (60), and the connecting pieces (60) can be mutually buckled;

all mixed flow fans are connected in sequence, all the mixed flow fans can rotate simultaneously and change the direction of an air outlet, the rotation axes of all the mixed flow fans are collinear, and two adjacent mixed flow fans are connected through the connecting piece (60).

17. An air conditioner comprising the fan assembly of claim 16.

18. The air conditioner of claim 17, wherein the air conditioner is an air duct machine.