CN107514387B

CN107514387B - Air conditioner and centrifugal fan blade thereof

Info

Publication number: CN107514387B
Application number: CN201710533075.XA
Authority: CN
Inventors: 付杰; 张伟捷; 陈斌; 兰江华; 袁双全; 邵佩佩
Original assignee: Aux Air Conditioning Co Ltd
Current assignee: Aux Air Conditioning Co Ltd
Priority date: 2017-07-03
Filing date: 2017-07-03
Publication date: 2023-06-16
Anticipated expiration: 2037-07-03
Also published as: CN107514387A

Abstract

The invention relates to a centrifugal fan blade, which comprises a centrifugal fan blade body, wherein the centrifugal fan blade body comprises a plurality of blades, a first through hole is formed in the inner part of each blade along the axial direction, the centrifugal fan blade further comprises a first communicating piece, a first sealing piece, a second communicating piece and a second sealing piece, an inlet is formed in the second sealing piece, an outlet is formed in the first sealing piece, refrigerant enters from the inlet of the second sealing piece, then flows into the second communicating piece and the first communicating piece in sequence, finally flows out from the outlet, a refrigerant circulation channel is formed in the centrifugal fan blade, when the centrifugal fan blade rotates to generate air flow, the blown air flow can take away heat by the refrigerant in the centrifugal fan blade, and the heat exchange work of the air flow is realized, so that the working process that the centrifugal fan blade can realize heat exchange only by matching with an evaporator is avoided, and the use of the evaporator is reduced.

Description

Air conditioner and centrifugal fan blade thereof

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner and centrifugal fan blades thereof.

Background

The centrifugal fan blade is a core component of the air conditioner, and plays an important role in heat transfer inside the air conditioner, in the traditional air conditioner, the evaporator absorbs heat of air through heat exchange to cool the air, and then the cooled air rotates to obtain a certain speed through the centrifugal fan blade to form cold air to blow out of the air conditioner, so that the cooling function of the air conditioner is realized, the centrifugal fan blade in the traditional air conditioner can only play a role in ventilation and air convection due to the limitation of the structure of the centrifugal fan blade, and the air conditioner with the structure has the following defects that the air cooling can only further cooperate with the use of the evaporator to realize heat exchange of air flow: 1. the centrifugal fan blade and the evaporator are required to be matched for use, so that the cost is relatively high; 2. the air flow blown onto the evaporator from the centrifugal fan blade is uneven, and the heat exchange efficiency is low; 3. the whole machine comprises two important parts, namely a centrifugal fan blade and an evaporator, so that the size of the whole machine is large, and the occupied space is large.

Disclosure of Invention

The invention aims to solve the technical problem of providing the air conditioner and the centrifugal fan blade thereof, which have simple structure, can exchange heat without using an evaporator and have high heat exchange efficiency.

The invention adopts the technical scheme that the centrifugal fan blade comprises a centrifugal fan blade body, wherein the centrifugal fan blade body comprises a plurality of blades, a first through hole is formed in the inner part of each blade along the axial direction, the centrifugal fan blade further comprises a first communicating piece which can extend into the first through hole of each blade, a first sealing piece which is connected with the first communicating piece and is communicated with the first communicating piece, a second communicating piece which can be connected with the first communicating piece and is communicated with the second communicating piece, and a second sealing piece which is connected with the second communicating piece and is communicated with the second communicating piece, an inlet which can enable refrigerant to enter the second sealing piece is formed in the second sealing piece, and an outlet which can enable refrigerant to flow out from the first sealing piece is formed in the first sealing piece.

The beneficial effects of the invention are as follows: the refrigerant enters from the inlet of the second sealing element and then flows into the second connecting element, as the second connecting element is connected with and communicated with the first connecting element, the refrigerant can flow into the first connecting element from the second connecting element and then flow out from the outlet of the first sealing element, thus a refrigerant circulation channel is formed on the centrifugal fan blade, when the centrifugal fan blade rotates to generate air flow, the blown air flow takes away heat by the refrigerant in the centrifugal fan blade, the heat exchange work of the air flow is realized, the working process that the centrifugal fan blade needs to be matched with an evaporator to realize the heat exchange is avoided, the use of the evaporator is reduced, the size of the whole machine is reduced, the cost is also reduced, the structure capable of circulating the refrigerant is directly arranged on the centrifugal fan blade, the uneven effect of air flow heat exchange is not caused, and the air flow heat exchange is uniform.

Preferably, the second communicating member is arranged at the head of the centrifugal fan blade body, the second communicating member comprises a second bearing connected with the second sealing member, a plurality of equidistant second through holes are arranged on the second bearing, the second communicating member further comprises a plurality of second copper pipes, one ends of the second copper pipes can be inserted into the second through holes and welded with the second bearing together, the number of the second through holes is equal to that of the first through holes, and by adopting the structure, when the refrigerant enters from an inlet on the second sealing member and then flows into each second copper pipe from the second through holes respectively through the inside of the second bearing.

As the priority, the first communicating piece sets up the afterbody at centrifugal fan blade body, first communicating piece is including a plurality of first copper pipes that can stretch into in the first through-hole and the ring pipe that connects a plurality of first copper pipes, the one end of every first copper pipe corresponds and is linked together with the other end of second copper pipe, adopts this kind of structure, and the refrigerant flows in along the inside first copper pipe of every blade after every second copper pipe, can all guarantee to circulate on every blade of centrifugal fan blade body and have the same refrigerant, and the same refrigerant heat transfer refrigeration can be felt to the air current that blows out from every fan blade.

As a priority, a plurality of equidistant first round holes are formed in the circular ring pipe, the other end of each first copper pipe is inserted into the first round holes and welded with the circular ring pipe, and by adopting the structure, the refrigerant can flow in along the first copper pipe in each blade and then flow out of the first copper pipe to be collected into the circular ring pipe from the first round holes.

As a priority, the outer walls of the plurality of first copper pipes are attached to the inner walls of the corresponding first through holes, so that the first circular ring pipe can be prevented from shaking in the through holes, and uneven heat exchange is avoided.

Preferably, the first communicating member further comprises a rear cover covered at the tail part of the centrifugal fan blade body, the rear cover is provided with a groove for embedding the circular ring pipe and a second bearing which is arranged at the axis of the rear cover and connected with the first sealing member, and the circumference of the groove is equal to the circumference of the circular ring pipe.

The first bearing is provided with a plurality of first through holes, the circular pipe is provided with a plurality of first round holes, the groove wall of the groove is provided with a plurality of second through holes corresponding to the positions of the first round holes, the rear cover further comprises a plurality of second copper pipes, one ends of the second copper pipes can penetrate through the second through holes and are inserted into the first round holes, the other ends of the second copper pipes are respectively inserted into the first through holes and welded with the first bearing, by adopting the structure, refrigerant collected in the circular pipe flows into the first copper pipes after flowing into the first round holes, flows out of the second copper pipes after flowing into the first bearing after flowing out of the second copper pipes, and finally flows out of the second copper pipes after flowing into the first bearing.

As a priority, a plurality of equally spaced fins are penetrated on each second copper pipe, and by adopting the structure, the heat exchange can be further carried out on the air flow blown onto the centrifugal fan blade, and the heat exchange efficiency is improved.

As a priority, a plurality of fins penetrate through each second copper pipe, the fins on each second copper pipe are arranged densely to sparsely along the direction perpendicular to the axis, and by adopting the structure, heat exchange can be further carried out on air flow blown onto the centrifugal fan blade, and heat exchange efficiency is improved.

According to one aspect of the invention, an air conditioner is provided, which comprises an air conditioner fan, wherein the air conditioner fan comprises the centrifugal fan blade.

Drawings

FIG. 1 is a block diagram of the centrifugal fan blade of the present invention with the components separated;

FIG. 2 is a block diagram of the centrifugal fan blade of the present invention when the components are combined together;

FIG. 3 is a block diagram of a second coupling member of a centrifugal fan blade according to the present invention;

FIG. 4 is a front view of a centrifugal fan blade of the present invention when the first communication member is combined with the centrifugal fan blade body;

FIG. 5 is a side view of the first communication member of the centrifugal fan blade of the present invention;

FIG. 6 is a front view of the rear cover of the first communication member of the centrifugal fan blade of the present invention;

as shown in the figure: 1. a centrifugal fan blade body; 2. a blade; 3. a first through hole; 4. a first communication member; 5. a first seal; 6. a second coupling member; 7. a second seal; 8. an inlet; 9. an outlet; 10. a second bearing; 11. a first round hole; 12. a second copper tube; 13. a first copper tube; 14. a circular ring pipe; 15. a third copper tube; 16. a rear cover; 17. a groove; 18. a first bearing; 19. a fourth through hole; 20. a fin; 21. a third through hole; 22. and a second round hole.

Detailed Description

The invention is further described below with reference to the accompanying drawings in combination with specific embodiments to enable one skilled in the art to practice the invention by reference to the specification, the scope of the invention being limited to the specific embodiments.

The invention adopts the technical scheme that as shown in fig. 1, the centrifugal fan blade comprises a centrifugal fan blade body 1, wherein the centrifugal fan blade body comprises a plurality of blades 2, a first through hole 3 is formed in the inner part of each blade 2 along the axial direction, the centrifugal fan blade further comprises a first communicating piece 4 which can extend into the first through hole 3 of each blade 2, a first sealing piece 5 which is connected with the first communicating piece 4 and penetrates through the first communicating piece, a second communicating piece 6 which can be connected with the first communicating piece 4 and penetrates through the first communicating piece, and a second sealing piece 7 which is connected with the second communicating piece 6 and penetrates through the second communicating piece, an inlet 8 which can enable refrigerant to enter the second sealing piece 7 is formed in the second sealing piece 7, and an outlet 9 which can enable refrigerant to flow out from the first sealing piece 5 is formed in the first sealing piece 5.

As a preference, as shown in fig. 1, the second coupling member 6 is disposed at the head of the centrifugal fan blade body 1, as shown in fig. 3, the second coupling member 6 includes a second bearing 10 connected with a second sealing member 7, a plurality of second through holes with equal intervals are disposed on the second bearing 10, the second coupling member 6 further includes a plurality of second copper tubes 12, one ends of which can be inserted into the second through holes and welded with the second bearing 10, and the number of the second through holes is equal to that of the first through holes 3, wherein the second sealing member is in rotary sealing connection with the second bearing, so that the bearing can be guaranteed to rotate and circulate the refrigerant.

Preferably, as shown in fig. 1, the first communicating member 4 is disposed at the tail of the centrifugal fan blade body 1, as shown in fig. 5, the first communicating member 4 includes a plurality of first copper tubes 13 capable of extending into the first through hole 3 and a circular ring tube 14 connecting the plurality of first copper tubes 13, one end of each first copper tube 13 is correspondingly communicated with the other end of the second copper tube 12, one end of the first copper tube 13 is correspondingly welded with the other end of the second copper tube 12 in a welding manner, and one end of the first copper tube 13 is correspondingly connected with the other end of the second copper tube 12 in a connecting lock sleeve.

Preferably, as shown in fig. 4, the circular pipe 14 is provided with a plurality of equidistant first circular holes 11, and the other end of each first copper pipe 13 is inserted into the first circular hole 11 and welded with the circular pipe 14.

Preferably, the outer walls of the plurality of first copper tubes 13 are attached to the inner walls of the corresponding first through holes 3.

Preferably, as shown in fig. 6, the first communicating element 4 further includes a rear cover 16 covering the tail of the centrifugal fan blade body 1, the rear cover 16 is provided with a groove 17 in which the circular ring pipe 14 is embedded, and a first bearing 18 disposed at the axis of the rear cover 16 and connected with the first sealing element 5, and the circumference of the groove 17 is equal to the circumference of the circular ring pipe 14, where the first sealing element is rotationally and hermetically connected with the first bearing, so that the bearing can be guaranteed to rotationally move and can circulate the refrigerant.

Preferably, as shown in fig. 5 and 6, the first bearing 18 is provided with a plurality of fourth through holes 19, the ring tube 14 is further provided with a plurality of second round holes 22, the groove wall of the groove 17 is provided with a plurality of third through holes 21 corresponding to each second round hole, the rear cover 16 further comprises a plurality of third copper tubes 15, one ends of which can pass through the third through holes 21 and are inserted into the second round holes, and the other ends of the third copper tubes 15 are respectively inserted into the fourth through holes 19 and welded with the first bearing 18.

Preferably, as shown in fig. 2 and 3, each of the second copper tubes 12 is perforated with a plurality of fins 20, and the fins 20 are arranged at equal intervals.

Preferably, each of the second copper tubes 12 is perforated with a plurality of fins 20 as shown in fig. 2 and 3, and the plurality of fins 20 are arranged in a dense-to-sparse manner in a direction perpendicular to the axis.

According to the structure diagram of the centrifugal fan blade shown in fig. 2 when all the components are combined together, the working principle of the centrifugal fan blade is as follows: the refrigerant enters from the inlet 8, flows into the second bearing 10 through the second sealing piece 7, then enters into the second copper pipe 12 through the second through hole on the second bearing 10, flows through the second copper pipe 12, enters from the first through hole 3 on the blade 2, flows into the first copper pipe 13, flows into the corresponding first round hole 11 in each first copper pipe 13, enters into the circular ring pipe 14 to be converged together, then flows into the third copper pipe 15 from the second round hole 22 respectively, flows into the fourth round hole 19 to be converged into the first bearing 18, and finally flows out through the outlet on the first bearing 18, and the whole structure of the centrifugal fan blade can provide a pipeline of the through centrifugal fan blade for the refrigerant.

Claims

1. The utility model provides a centrifugal fan blade which characterized in that: the centrifugal fan blade comprises a centrifugal fan blade body (1), wherein the centrifugal fan blade body (1) comprises a plurality of blades (2), a first through hole (3) is formed in each blade (2) along the axial direction, the centrifugal fan blade body (1) further comprises a first communicating piece (4) which can extend into the first through hole (3) of each blade (2), a first sealing piece (5) which is connected with the first communicating piece (4) and penetrates through the first communicating piece, a second communicating piece (6) which can be connected with the first communicating piece (4) and penetrates through the first communicating piece, and a second sealing piece (7) which is connected with the second communicating piece (6) and penetrates through the second communicating piece, an inlet (8) which can enable refrigerant to enter the second sealing piece (7) is formed in the second sealing piece (7), and an outlet (9) which can enable refrigerant to flow out of the first sealing piece (5) is formed in the first sealing piece (5); the second communicating piece (6) is arranged at the head of the centrifugal fan blade body (1), the second communicating piece (6) comprises a second bearing (10) connected with a second sealing piece (7), a plurality of equidistant second through holes are formed in the second bearing (10), the second communicating piece (6) further comprises a plurality of second copper pipes (12) one ends of which can be inserted into the second through holes and welded with the second bearing (10), and the number of the second through holes is equal to that of the first through holes (3); the centrifugal fan blade comprises a centrifugal fan blade body (1), and is characterized in that a first communicating piece (4) is arranged at the tail of the centrifugal fan blade body (1), and the first communicating piece (4) comprises a plurality of first copper pipes (13) which can extend into a first through hole (3) and a circular ring pipe (14) which connects the plurality of first copper pipes (13), and one end of each first copper pipe (13) is correspondingly communicated with the other end of each second copper pipe (12).

2. A centrifugal fan blade according to claim 1, wherein: a plurality of equidistant first round holes (11) are formed in the circular ring pipe (14), and the other end of each first copper pipe (13) is inserted into the first round holes (11) and welded with the circular ring pipe (14).

3. A centrifugal fan blade according to claim 1 or claim 2, wherein: the outer walls of the plurality of first copper pipes (13) are attached to the inner walls of the corresponding first through holes (3).

4. A centrifugal fan blade according to claim 1, wherein: the first communicating piece (4) further comprises a rear cover (16) covered at the tail of the centrifugal fan blade body (1), a groove (17) for embedding the circular ring tube (14) and a first bearing (18) which is arranged at the axis of the rear cover (16) and connected with the first sealing piece (5) are arranged on the rear cover (16), and the circumference of the groove (17) is equal to that of the circular ring tube (14).

5. The centrifugal fan blade according to claim 4, wherein: be provided with a plurality of fourth through holes (19) on first bearing (18), still be provided with a plurality of second round holes (22) on ring pipe (14), be provided with a plurality of third through holes (21) that correspond with every second round hole (22) position on the recess wall of recess (17), back lid (16) still include a plurality of third copper pipe (15) that one end can pass third through hole (21) and insert in second round hole (22), the other end of third copper pipe (15) inserts respectively in fourth through hole (19) and weld together with first bearing (18).

6. A centrifugal fan blade according to claim 1, wherein: each second copper pipe (12) is provided with a plurality of fins (20), and the fins (20) are arranged at equal intervals.

7. A centrifugal fan blade according to claim 1, wherein: each second copper pipe (12) is perforated with a plurality of fins (20), and the fins (20) are arranged from dense to sparse along the direction perpendicular to the axis.

8. An air conditioner, its includes air conditioner fan, its characterized in that: the air conditioning fan comprises a centrifugal fan blade according to any one of claims 1-7.