CN108626803B - Air conditioner indoor unit fan - Google Patents

Air conditioner indoor unit fan Download PDF

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Publication number
CN108626803B
CN108626803B CN201810457446.5A CN201810457446A CN108626803B CN 108626803 B CN108626803 B CN 108626803B CN 201810457446 A CN201810457446 A CN 201810457446A CN 108626803 B CN108626803 B CN 108626803B
Authority
CN
China
Prior art keywords
rotating shaft
flow fan
fan
axial flow
silicon steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201810457446.5A
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Chinese (zh)
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CN108626803A (en
Inventor
朱小菊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Shunde Moral Electric Appliance Technology Co ltd
Original Assignee
He Nini
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by He Nini filed Critical He Nini
Priority to CN201810457446.5A priority Critical patent/CN108626803B/en
Publication of CN108626803A publication Critical patent/CN108626803A/en
Application granted granted Critical
Publication of CN108626803B publication Critical patent/CN108626803B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0025—Cross-flow or tangential fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention provides an air conditioner indoor unit fan, which comprises a cross flow fan with a rotating shaft penetrating through the cross flow fan; the circumferential surface of the fan is provided with ring rings at equal intervals along the axial direction, each ring is internally provided with an axial flow fan which is assembled on the rotating shaft through a shaft sleeve, and the axial flow fan can freely rotate around the rotating shaft in a natural state; when each axial flow fan rotates in the same direction with the rotating shaft, the airflow directions generated by the adjacent axial flow fans are opposite; the part of the rotating shaft, which is contacted with the shaft sleeve of each axial flow fan, is composed of silicon steel tubes, the shaft sleeve comprises two symmetrically spliced silicon steel semi-rings, and the two silicon steel semi-rings are connected through elastic rubber; an electromagnet is respectively arranged in the rotating shaft and at the position opposite to each shaft sleeve; each electromagnet is electrically connected to an electromagnetic control module coupled to the air conditioning circuit board. The fan can form a transverse air swinging effect according to the requirement in the working process.

Description

Air conditioner indoor unit fan
Technical Field
The invention relates to the field of household air conditioners, in particular to an air conditioner indoor unit fan.
Background
The household air conditioner mainly comprises an external unit and an internal unit, wherein the internal unit mainly comprises a heat exchange pipe system and a cross-flow fan; the conventional cross-flow fan is of an integrated cylindrical structure, only directional airflow orthogonal to the axis of the fan can be generated during rotation, and vertical air swinging of an air conditioner can be realized by adjusting a guide plate of an air outlet of the air conditioner, but transverse air swinging cannot be realized; under the condition that indoor personnel are widely distributed, the current air conditioner cannot completely meet the requirement of a user for blowing cool wind.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an air conditioner internal unit fan, which can generate a lateral wind swinging effect as required during the operation process.
The technical scheme adopted by the invention for solving the technical problems is as follows: the fan of the air conditioner indoor unit comprises a cylindrical cross-flow fan driven by a motor; the rotating shaft of the cross flow fan penetrates through the cross flow fan and extends along the axis in the cross flow fan; the circumferential surface of the cross flow fan is provided with rings which are connected with the fan blades into a whole at equal intervals along the axial direction, each ring is internally provided with an axial flow fan which is assembled on the rotating shaft through a shaft sleeve, and the axial flow fan can freely rotate around the rotating shaft in a natural state; when each axial flow fan rotates in the same direction as the rotating shaft, the airflow directions generated by the adjacent axial flow fans are opposite, namely, the airflow directions face to the opposite direction of the axis of the rotating shaft; the part of the rotating shaft, which is contacted with the shaft sleeve of each axial flow fan, is formed by a silicon steel pipe, the shaft sleeve comprises two symmetrically spliced silicon steel semi-rings, and the two silicon steel semi-rings are connected through elastic rubber; an electromagnet is arranged in the rotating shaft and opposite to each shaft sleeve; each electromagnet is electrically connected to an electromagnetic control module coupled to the air conditioning circuit board.
Preferably, the silicon steel tubes on the rotating shaft, which are in contact with the shaft sleeves, are connected through non-ferromagnetic tubes, so that the magnetism of the silicon steel tubes is independent from that of each other, and the magnetic force of each electromagnet only acts on the corresponding shaft sleeve.
Preferably, the electromagnets at odd positions are connected in parallel in the order from left to right to form an odd parallel path; electromagnets at even number positions are mutually connected in parallel to form an even parallel path; the odd parallel path and the even parallel path share one zero potential line and are coupled to the electromagnetic control module through a brush structure at the end part of the rotating shaft; the electromagnetic control module is used for alternately switching on the odd parallel path and the even parallel path in a transverse wind swinging mode; further, in the process of switching on the odd parallel path and the even parallel path, the electromagnetic control module continuously increases the exciting current of the electromagnet in the parallel path from zero to a peak value and then attenuates to a zero value; therefore, the cross-flow fan has a wind swinging effect which is continuously changed from left to right and then from right to left, and the wind cannot blow towards the left lower side once and blow towards the right lower side once, so that the swinging wind is softer and more comfortable; furthermore, the electromagnetic control module outputs direct current to the odd parallel circuit and the even parallel circuit through electronic switches and capacitors which are connected in series; when the electromagnetic control module supplies power to an odd parallel circuit or an even parallel circuit every time, the electronic switch corresponding to the parallel circuit is kept closed until the capacitor connected in series with the electronic switch is fully charged, and the electronic switch in the other parallel circuit is not switched on until the capacitor in the parallel circuit is discharged; therefore, in each parallel circuit, the fluctuating output requirement of the exciting current is realized only by one electronic switch and one capacitor, the circuit structure is simple, the cost is low, and the program requirement on the electromagnetic control module can be reduced to a greater extent.
The invention has the beneficial effects that: when the fan of the indoor unit of the air conditioner does not need to swing air transversely, the electromagnets are powered off, the shaft sleeve of each axial flow fan does not rotate along with the rotating shaft of the cross flow fan, and the cross flow fan supplies air towards the right lower part of the air conditioner; when the air needs to swing transversely, only the electromagnet corresponding to the shaft sleeve of the corresponding axial flow fan needs to be electrified, and the shaft sleeve contracts radially under the action of magnetic attraction to hold the rotating shaft tightly, so that the axial flow fan rotates along with the rotating shaft to generate axial airflow, so that the inner fan supplies air towards the oblique lower side of the air conditioner, and when the axial flow fan with the opposite air supply direction rotates in turn, the inner fan can generate the transverse air swing effect.
Drawings
Fig. 1 is a schematic view of an embodiment of the present air conditioner indoor unit fan.
Fig. 2 is a schematic structural diagram of a shaft sleeve in the fan of the indoor unit of the air conditioner.
Fig. 3 is a schematic view of an embodiment of a rotating shaft in the fan of the indoor unit of the air conditioner.
Detailed Description
In the embodiment shown in fig. 1-3, the air conditioner indoor unit fan comprises a cylindrical cross-flow fan 2 driven by a motor 1; the rotating shaft 20 of the cross flow fan 2 penetrates through the cross flow fan 2 and extends along the axis inside the cross flow fan 2; the circumferential surface of the cross flow fan 2 is equidistantly distributed with ring rings 21 which are connected with the fan blades into a whole along the axial direction, an axial flow fan 3 which is assembled on the rotating shaft 20 through a shaft sleeve 30 is arranged in each ring 21, and the axial flow fan 3 can freely rotate around the rotating shaft 20 in a natural state; when each axial flow fan 3 rotates in the same direction as the rotating shaft 20, the airflow directions generated by adjacent axial flow fans are opposite, that is, the airflow directions are opposite to the axis of the rotating shaft; the contact part of the rotating shaft 20 and the shaft sleeve 30 of each axial flow fan 3 is composed of a silicon steel pipe 200, the shaft sleeve 30 comprises two silicon steel semi-rings 301 and 302 which are symmetrically spliced, and the two silicon steel semi-rings are connected through an elastic rubber 303; an electromagnet 4 is respectively arranged in the rotating shaft 20 and at the position opposite to each shaft sleeve 30; each electromagnet 4 is electrically connected to an electromagnetic control module (not shown) coupled to the air-conditioning circuit board.
In this embodiment, the silicon steel tubes 200 on the rotating shaft 20, which are in contact with the shaft sleeves 30, are connected through the non-ferromagnetic tubes 201, so that the magnetic force of each silicon steel tube 200 is independent from each other, and the magnetic force of each electromagnet 4 only acts on the corresponding shaft sleeve 30.
In the embodiment, the electromagnets 4 at odd positions are connected in parallel in the order from left to right to form an odd parallel path; the electromagnets 4 at even-numbered positions are connected in parallel to form an even parallel circuit; the odd parallel path and the even parallel path share a zero potential line and are coupled to the electromagnetic control module through a brush structure 5 at the end part of the rotating shaft 20; the electromagnetic control module is used for alternately switching on the odd parallel path and the even parallel path in a transverse wind swinging mode; further, in the process of switching on the odd parallel path and the even parallel path, the electromagnetic control module continuously increases the exciting current of the electromagnet in the parallel path from zero to a peak value and then attenuates to a zero value; therefore, the cross-flow fan has the air swinging effect which is continuously changed from left to right and then from right to left, air cannot be blown to the lower left at a stroke, air is blown to the lower right at a stroke, and the air swinging is softer and more comfortable.
In order to realize that the exciting current of the electromagnet 4 in the parallel circuit is continuously increased to a peak value from zero and then is attenuated to a zero value, the electromagnetic control module can output direct current to the odd parallel circuit and the even parallel circuit through electronic switches and capacitors which are mutually connected in series; when the electromagnetic control module supplies power to an odd parallel circuit or an even parallel circuit every time, the electronic switch corresponding to the parallel circuit is kept closed until the capacitor connected in series with the electronic switch is fully charged, and the electronic switch in the other parallel circuit is not switched on until the capacitor in the parallel circuit is discharged; therefore, in each parallel circuit, the fluctuating output requirement of the exciting current is realized only by one electronic switch and one capacitor, the circuit structure is simple, the cost is low, and the program requirement on the electromagnetic control module can be reduced to a greater extent.
When the fan of the indoor unit of the air conditioner does not need to swing transversely, the electromagnets 4 are powered off, the shaft sleeve 30 of each axial flow fan 3 does not rotate along with the rotating shaft 20 of the cross flow fan, and the cross flow fan 2 supplies air towards the right lower part of the air conditioner; when the air needs to be transversely swung, the electromagnet 4 corresponding to the shaft sleeve 30 of the corresponding axial flow fan 3 is electrified, the shaft sleeve 4 radially contracts under the action of magnetic attraction force and tightly holds the rotating shaft 20, so that the axial flow fan 3 rotates along with the rotating shaft 20 to generate axial airflow, the indoor fan supplies air towards the inclined lower side of the air conditioner, and when the axial flow fan 3 with opposite air supply directions rotates in turn, the indoor fan can generate a transverse swinging effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (2)

1. An air conditioner indoor unit fan comprises a cylindrical cross-flow fan (2) driven by a motor; the rotating shaft (20) of the cross flow fan (2) penetrates through the cross flow fan (2) and extends along the axis inside the cross flow fan (2); the circumferential surface of the cross flow fan (2) is provided with ring rings (21) which are axially and equidistantly distributed and are connected with the fan blades into a whole; an axial flow fan (3) assembled on the rotating shaft (20) through a shaft sleeve (30) is arranged in each ring (21), and the axial flow fan (3) can freely rotate around the rotating shaft (20) in a natural state; when each axial flow fan (3) rotates in the same direction with the rotating shaft (20), the airflow directions generated by the adjacent axial flow fans (3) are opposite, namely, the airflow directions are opposite to the axial line of the rotating shaft (20); the part of the rotating shaft (20) contacting with the shaft sleeve (30) of each axial flow fan (3) is composed of a silicon steel pipe (200), the shaft sleeve (30) comprises two silicon steel semi-rings (301) which are symmetrically spliced, and the two silicon steel semi-rings (301) are connected through elastic rubber (303); an electromagnet (4) is respectively arranged in the rotating shaft (20) and at the position opposite to each shaft sleeve (30); each electromagnet (4) is electrically connected to an electromagnetic control module coupled to the air-conditioning circuit board; the method is characterized in that: the electromagnets (4) at odd positions are connected in parallel in the order from left to right to form an odd parallel path; electromagnets (4) at even-numbered positions are connected in parallel to form an even parallel path; the odd parallel path and the even parallel path share a zero potential line and are coupled to the electromagnetic control module through a brush structure (5) at the end part of the rotating shaft; the electromagnetic control module is used for alternately switching on the odd parallel path and the even parallel path in a transverse wind swinging mode; in the process of switching on the odd parallel path and the even parallel path, the electromagnetic control module continuously increases the exciting current of the electromagnet (4) in the parallel path from zero to a peak value and then attenuates to a zero value; therefore, the cross-flow fan has a wind swinging effect which is continuously changed from left to right and then from right to left.
2. An indoor unit fan for an air conditioner according to claim 1, wherein: the silicon steel pipes (200) which are contacted with the shaft sleeves (30) on the rotating shaft (20) are connected through non-ferromagnetic pipes (201), so that the magnetism of the silicon steel pipes (200) is independent.
CN201810457446.5A 2018-05-14 2018-05-14 Air conditioner indoor unit fan Expired - Fee Related CN108626803B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810457446.5A CN108626803B (en) 2018-05-14 2018-05-14 Air conditioner indoor unit fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810457446.5A CN108626803B (en) 2018-05-14 2018-05-14 Air conditioner indoor unit fan

Publications (2)

Publication Number Publication Date
CN108626803A CN108626803A (en) 2018-10-09
CN108626803B true CN108626803B (en) 2021-07-06

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113465152A (en) * 2021-06-02 2021-10-01 浙江吉利控股集团有限公司 Air conditioner fan system, control method, air conditioner and storage medium

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2245819Y (en) * 1995-11-20 1997-01-22 凯美电机股份有限公司 D.C. fan motor
CN2288542Y (en) * 1997-02-26 1998-08-19 李婉铃 Motor for small radiation fan
CN1295439C (en) * 2003-12-25 2007-01-17 华中科技大学 Two-way through flow/axial flow pump
KR20050101456A (en) * 2004-04-19 2005-10-24 엘지전자 주식회사 Indoor unit for air conditioner
KR20050117666A (en) * 2004-06-11 2005-12-15 엘지전자 주식회사 Indoor unit for air conditioner
CN1712795A (en) * 2004-06-21 2005-12-28 乐金电子(天津)电器有限公司 Indoor unit of separated air conditioner
CN104296243A (en) * 2014-09-30 2015-01-21 美的集团武汉制冷设备有限公司 Indoor wall-mounted unit and air-conditioner comprising indoor wall-mounted unit

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PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20210617

Address after: 171 Renmin Road, Haiyou street, Sanmen County, Taizhou City, Zhejiang Province

Applicant after: He Nini

Address before: 215000 7, floor 3, 3 Commercial Plaza, 125 Tung Wu South Road, Wuzhong District, Jiangsu.

Applicant before: Zhu Xiaoju

GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220518

Address after: 528300 Room 301, block 7, Shiyou industrial city, No. 16, Zhian North Road, Changxing Industrial Park, Jun'an community neighborhood committee, Jun'an Town, Shunde District, Foshan City, Guangdong Province

Patentee after: Foshan Shunde moral Electric Appliance Technology Co.,Ltd.

Address before: 171 Renmin Road, Haiyou street, Sanmen County, Taizhou City, Zhejiang Province

Patentee before: He Nini

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210706