CN109236686B - Cross-flow fan and air conditioner - Google Patents
Cross-flow fan and air conditioner Download PDFInfo
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- CN109236686B CN109236686B CN201811052188.9A CN201811052188A CN109236686B CN 109236686 B CN109236686 B CN 109236686B CN 201811052188 A CN201811052188 A CN 201811052188A CN 109236686 B CN109236686 B CN 109236686B
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- 238000010276 construction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000004069 differentiation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
- F16H3/22—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially
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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
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a cross-flow fan and an air conditioner, and belongs to the technical field of air conditioners. The cross-flow fan comprises a driving motor, a positioning shaft and a plurality of cross-flow fan shafts; two adjacent cross flow fan shafts are coaxially connected through a positioning shaft, two ends of the positioning shaft are respectively penetrated through the two adjacent cross flow fan shafts, and at least one end of the two ends of the positioning shaft can relatively rotate and/or move in the corresponding cross flow fan shaft; two adjacent cross-flow fan shafts transmit power through two gears with different sizes, which are meshed with each other in the first gear set and the second gear set, and the driving motor is used for driving one of the cross-flow fan shafts to rotate. The cross flow fan can solve the problem that the air conditioner can not realize the differentiated requirements of different indoor users on the air output under the same operation state, and meets the different air output requirements of the users.
Description
Technical Field
The invention relates to the technical field of fans, in particular to a cross-flow fan and an air conditioner.
Background
Along with the continuous improvement of quality of life, the air conditioner has got into millions of families as a domestic appliance, the life of giving people has brought very big convenience, the user also more and more high but everyone is different to the reaction degree of amount of wind to the performance requirement of air conditioner, under same amount of wind, someone can feel comfortable, someone can feel more uncomfortable, the cross-flow fan of current air conditioner can only realize the air outlet with the air-out of same air output under same running state, can't realize indoor different user to the differentiation demand of air output.
Disclosure of Invention
The embodiment of the invention provides a cross-flow fan and an air conditioner, which are used for solving the problem that the air conditioner cannot meet the requirement of different indoor users on air output difference in the same operation state. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of embodiments of the present invention, there is provided a crossflow blower comprising a drive motor, a positioning shaft and a plurality of crossflow blower shafts; two adjacent cross-flow fan shafts are coaxially connected through the positioning shaft, two ends of the positioning shaft are respectively arranged in the two adjacent cross-flow fan shafts in a penetrating manner, and at least one end of the two ends of the positioning shaft can rotate and/or move relatively in the corresponding cross-flow fan shaft; a connecting rod is arranged on one of the two adjacent cross-flow fan shafts, a first gear set is arranged on the connecting rod, and a second gear set is arranged on the other cross-flow fan shaft; and the two adjacent cross-flow fan shafts transmit power through two gears with different sizes, which are meshed with each other, in the first gear set and the second gear set, and the driving motor is used for driving one of the cross-flow fan shafts to rotate.
Optionally, at least one of the first gear set and the second gear set includes a plurality of gears with different sizes, and each gear of the first gear set and each gear of the second gear set can be meshed with each other; the positioning shaft is axially movable to effect engagement of two gears in different combinations.
Optionally, the connecting rod is sequentially and coaxially inserted into each gear of the first gear set, and the cross-flow fan shaft is sequentially and coaxially inserted into each gear of the second gear set.
Optionally, the connecting rod includes a first portion and a second portion, an extending direction of the second portion is parallel to an axial direction of the cross-flow fan shaft, one end of the first portion is fixedly connected with the cross-flow fan shaft, the other end of the first portion is connected with the second portion, a plurality of gears with different sizes are arranged on the second portion, and the first portion is of a telescopic structure.
Optionally, the first portion is of a multi-layer sleeve-type construction, which is extensible or contractible in its axial direction.
Optionally, the multilayer sleeve-type structure comprises a plurality of telescopic joints, through holes are formed in the joints of two adjacent telescopic joints, and fasteners are arranged in the through holes.
Optionally, at least one of the two adjacent cross-flow fan shafts is provided with a mounting hole along the axial direction, and one end of the positioning shaft is rotatably arranged in the mounting hole.
Optionally, a plurality of limiting protrusions are axially arranged on the positioning shaft, and a plurality of limiting grooves corresponding to the limiting protrusions one to one are formed in the peripheral wall of the mounting hole of the cross-flow fan shaft; the limiting protrusion is matched with the limiting groove for use and used for limiting the distance between two adjacent cross-flow fan shafts when the positioning shaft moves along the axial direction.
Optionally, the limiting protrusion is an annular limiting protrusion, and the limiting groove is an annular limiting groove; the annular limiting bulges and the annular limiting grooves are arranged at equal intervals.
According to a second aspect of an embodiment of the present invention, there is provided an air conditioner including the cross-flow fan described above.
Optionally, the air outlet of the air conditioner is communicated with a plurality of mutually independent air outlet channels, and the air outlet channels are arranged in one-to-one correspondence with the cross-flow fan shafts.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the traditional integrated cross-flow fan is divided into a plurality of cross-flow fan sections, two gears with different sizes which are meshed with each other drive two adjacent cross-flow fan shafts to rotate at different rotating speeds, and the cross-flow fan can operate at different rotating speeds under the drive of the same motor, so that different air quantities are generated, and the requirements of different indoor users on air quantity difference are met.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic illustration of a crossflow blower in accordance with an exemplary embodiment;
FIG. 2 is a schematic illustration of a crossflow blower in accordance with another exemplary embodiment;
FIG. 3 is an enlarged view of the structure at A in the embodiment of FIG. 2;
FIG. 4 is an enlarged view of the structure at A in the alternative embodiment of FIG. 2;
FIG. 5 is a left side view of the structure of FIG. 3;
FIG. 6 is an enlarged view of the structure at B in the embodiment of FIG. 2;
FIG. 7 is an elevation view of a crossflow blower in accordance with another exemplary embodiment;
fig. 8 is a schematic structural diagram illustrating an air conditioner according to an exemplary embodiment.
Description of reference numerals:
1. a drive motor; 2. positioning the shaft; 21. a limiting bulge; 3. a cross-flow fan shaft; 4. a connecting rod; 41. a first portion, 42, a second portion; 411. a through hole; 412. a fastener; 5. a gear; 6. an impeller; 100. a cross-flow fan; 101. an air outlet; 102. an air outlet duct.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The embodiments are merely representative of possible variations, individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
According to a first aspect of an embodiment of the present invention, there is provided a crossflow blower 100, as shown in fig. 1-2, comprising a drive motor 1, a positioning shaft 2 and a plurality of crossflow blower shafts 3; two adjacent cross-flow fan shafts 3 are coaxially connected through a positioning shaft 2, two ends of the positioning shaft 2 are respectively arranged in the two adjacent cross-flow fan shafts 3 in a penetrating way, and at least one end of the two ends of the positioning shaft 2 can relatively rotate and/or move in the corresponding cross-flow fan shaft 3; one cross-flow fan shaft 3 of two adjacent cross-flow fan shafts 3 is provided with a connecting rod 4, the connecting rod 4 is provided with a first gear set, and the other cross-flow fan shaft 3 is provided with a second gear set; two adjacent cross-flow fan shafts 3 transmit power through two gears 5 which are in the first gear set and are meshed with each other in the second gear set and are in different sizes, and the driving motor 1 is used for driving one of the cross-flow fan shafts 3 to rotate.
In this embodiment, the positioning shaft 2 is used for connecting two adjacent cross-flow fan shafts 3, and cannot transmit a rotational force between the two adjacent cross-flow fan shafts through the positioning shaft 2, so at least one of two ends of the positioning shaft 2 must coaxially penetrate through the cross-flow fan shafts 3, and can relatively rotate in the cross-flow fan shafts 3, so as to ensure that when one cross-flow fan shaft 3 rotates, the positioning shaft 2 and the connected cross-flow fan shaft 3 do not rotate at the same rotational speed, at least one of two ends of the positioning shaft 2 can move in the cross-flow fan shaft 3, of course, one end of the positioning shaft 2 which relatively rotates and moves may be the same end or different ends, and both ends of the positioning shaft 2 may relatively rotate and move, and no limitation is made again as long as the positioning shaft 2 arranged between the adjacent cross-flow fan shafts 3 can relatively rotate and move with respect to the two cross-flow fan shafts 2 And moving the mobile terminal.
On the other hand, the gears 5 capable of meshing with each other in the first gear set and the second gear set may be gears 5 of different sizes so as to enable each cross flow fan shaft 3 to rotate at different rotating speeds, or the gears 5 of the same size may mesh with each other so as to enable each cross flow fan shaft 3 to rotate at the same rotating speed according to the user requirement, which is not specifically limited herein, but according to the technical scheme of the embodiment of the present invention, the user requirement for air output differentiation can be met only by meshing the gears 5 of different sizes with each other. Of course, the impeller 6 of the cross flow fan 100 is sleeved outside the cross flow fan shaft 3, which belongs to the prior art and is not described herein. Wherein the movement of the positioning shaft 2 can be adjusted manually by the user.
In some alternative embodiments, as shown in fig. 1-2, at least one of the first and second gear sets comprises a plurality of gears 5 of different sizes, each gear of the first gear set and each gear 5 of the second gear set being capable of intermeshing; the positioning shaft 2 is axially movable to achieve meshing of two gears 5 in different combinations.
In this embodiment, at least one of the first and second gear sets should include a plurality of differently sized gears 5. For example, when the first gear set includes only one gear 5 and the second gear set includes a plurality of gears 5 with different sizes, the gears 5 in the first gear set can be meshed with each gear 5 in the second gear set respectively, so as to realize that the rotation speed between two adjacent cross-flow fan shafts 3 can be selected in various combinations, and according to the user's requirements, the corresponding gears 5 are selected to be meshed to realize different rotation speeds. Of course, it is also possible that the first gear set and the second gear set each comprise a plurality of gears 5 with different sizes, so that the combination of two gears 5 meshed with each other is more, and the adjustment of the rotation speed of the cross flow fan shaft 3 is more fine. When the positioning shaft 2 moves axially, the gear 5 in the first gear set is brought into engagement with the gear 5 of different size in the second gear set.
In some alternative embodiments, as shown in fig. 1-2, a connecting rod 4 is coaxially inserted through each gear 5 of the first gear set in turn, and a cross-flow fan shaft 3 is coaxially inserted through each gear 5 of the second gear set in turn. Specifically, each gear 5 of the first gear set is worn to establish by connecting rod 4 coaxially and each gear 5 of the second gear set is worn to establish in proper order by cross-flow fan axle 3 for letting gear 5 be more stable when rotating, if not coaxial wearing to establish, the structure that gear 5 becomes the eccentric wheel when rotating can appear, can produce the vibration, produces bigger noise, and the use that leads to the user to obtain experiences not well.
In some alternative embodiments, as shown in fig. 3 to 4, the connecting rod 4 includes a first portion 41 and a second portion 42, the second portion 42 extends in a direction parallel to the axial direction of the cross-flow fan shaft 2, one end of the first portion 41 is fixedly connected to the cross-flow fan shaft 2, the other end of the first portion 41 is connected to the second portion 42, a plurality of gears 5 with different sizes are arranged on the second portion 42, and the first portion 41 is in a telescopic structure.
In this embodiment, the connecting rod 4 is composed of two parts, the first part 41 is used for connecting with the cross flow fan shaft 3, the second part 42 is used for arranging the first gear set, and power transmission of meshing between two adjacent cross flow fan shafts 3 through the gear 5 is realized, wherein the extending direction of the second part 42 is parallel to the axial direction of the cross flow fan shaft 2, so that the gear 5 in the first gear set and the gear 5 in the second gear set can be arranged in parallel, and the meshing between the gears 5 is firmer when the gears are meshed with each other. The fixed connection of the first part 41 and the cross-flow fan shaft 3 can adopt the modes of screw connection, welding or riveting and the like, and the adjustment of the distance between the second part 42 and the cross-flow fan shaft 3 is realized through the telescopic structural form of the first part 41, so that when the gears 5 in the first gear set are respectively meshed with the gears 5 with different sizes in the second gear set, the distance between the two gears 5 which are meshed with each other is adjusted, and each gear 5 in the first gear set can be meshed with each gear 5 in the second gear set.
In alternative embodiments, first portion 41 is a multi-layer sleeve-type structure that can be extended or retracted in the axial direction thereof. The multilayer sleeve type structure is a specific telescopic structure and is similar to a structure form of a telescopic rod of a mobile phone selfie stick. Of course, the specific form of the telescopic structure of the first portion 41 is not limited, and other forms are possible, as shown in fig. 4, for example, the first portion 41 may be a folding structure similar to a spring, and the distance from one end of the first portion 41 connected to the second portion 42 to the axial flow fan shaft 3 is adjusted by folding, and the folding structure may have a certain elasticity, so as to facilitate the folding of the first portion 41. The expansion and contraction of the first portion 41 can be manually adjusted by a user.
In some alternative embodiments, as shown in fig. 3 and 5, the multi-layer telescopic structure includes a plurality of telescopic joints, a through hole 411 is formed at a joint of two adjacent telescopic joints, and a fastener 412 is disposed in the through hole 411. The shorter the length of the telescopic joint is, the more the number of the telescopic joints is, the larger the range of the first part 41 extending and retracting along the axial direction is, and the more flexible the adjustment is, but based on the size of the actual tubular fan shaft 3, the number of the telescopic joints is not too large, and the telescopic joints can be matched with the number of the gears 5 in the first gear set and the second gear set, so that the two gears 5 can be meshed with each other. The fastening member 412 may be a screw or a bolt, and fastening between two adjacent expansion joints is achieved by rotating the screw or the bolt, although a nut is required to be matched with the bolt when the bolt is used.
In some alternative embodiments, at least one of two adjacent cross-flow fan shafts 3 is axially provided with a mounting hole, and one end of the positioning shaft 2 is relatively rotatably arranged in the mounting hole. The installation of the positioning shaft 2 can be facilitated by arranging the installation hole in the cross-flow fan shaft 3, the shape of the installation hole is matched with that of the positioning shaft 2, and the depth of the installation hole 31 is larger, so that at least one end of the positioning shaft 2 can be conveniently moved. Preferably, the two adjacent cross flow fan shafts 3 are provided with mounting holes 31 along the axial direction, so that both ends of the positioning shaft 2 can rotate relatively in the corresponding cross flow fan shafts 3.
In some optional embodiments, as shown in fig. 7, a plurality of limiting protrusions 21 are axially arranged on the positioning shaft 2, and a plurality of limiting grooves corresponding to the limiting protrusions 21 one by one are formed in the peripheral wall of the mounting hole of the cross-flow fan shaft 3; the limiting protrusion 21 is matched with the limiting groove for use, and is used for limiting the distance between two adjacent cross-flow fan shafts 3 when the positioning shaft 2 moves along the axial direction.
In this embodiment, the limiting protrusion 21 and the limiting groove are provided to prevent the two gears 5 engaged with each other from deviating when the positioning shaft 2 axially moves in the rotating process and the positioning shaft 2 axially moves under the action of an external force after the gear 5 in the first gear set and the gear 5 in the second gear set are engaged with each other when the positioning shaft 2 axially moves, and the rotation of one of the through-flow fan shafts 3 cannot drive the other through-flow fan shaft 3 to rotate through the gear 5.
In some alternative embodiments, as shown in fig. 7, the limiting protrusion 21 is an annular limiting protrusion, and the limiting groove is an annular limiting groove; the annular limiting bulges and the annular limiting grooves are arranged at equal intervals. Wherein, with spacing arch 21, the spacing groove sets up annular, convenient operation, because tubular fan axle 3 can take place to rotate in the course of the work, when adjusting the distance between two adjacent tubular fan axles 3, when location axle 2 is along axial displacement, spacing arch 21 probably can change with the relative position of spacing groove, need rotate location axle 2 this moment and ensure that spacing arch 21 carries out buckle complex limiting displacement with the spacing groove, it need not to rotate location axle 2 after the annular structure to set up, as long as when location axle 3 removed corresponding position department, spacing arch 21 will be automatic with spacing groove buckle cooperation, realize limiting displacement.
According to a second aspect of the embodiment of the present invention, there is provided an air conditioner including the cross flow fan 100 described above. The air conditioner with the cross-flow fan 100 can freely combine different air output quantities of the same cross-flow fan 100, so that various air output quantities are realized, the air output quantity requirements of different users are met, and the air output quantity of the air conditioner is more diversified.
In some alternative embodiments, as shown in fig. 8, an air outlet 101 of the air conditioner communicates with a plurality of independent air outlet ducts 102, and the air outlet ducts 102 are arranged in one-to-one correspondence with the cross flow fan shafts 3.
In this embodiment, the air volume flowing through each air outlet duct 102 is different, and the air blown out from the same air outlet 101 is also divided into different regions. In a specific embodiment, when the cross-flow fan 100 includes three cross-flow fan shafts 3 distributed horizontally, the outlet 101 of the air conditioner can blow different air volumes along the left, middle and right air outlet positions, and three users in front of the air conditioner can feel different air speeds.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above description of the embodiments is only intended to facilitate the understanding of the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the present description should not be construed as limiting the present invention.
Claims (9)
1. A cross-flow fan is characterized by comprising a driving motor, a positioning shaft and a plurality of cross-flow fan shafts; two adjacent cross flow fan shafts are coaxially connected through the positioning shaft, two ends of the positioning shaft are respectively penetrated through the two adjacent cross flow fan shafts, and at least one end of the two ends of the positioning shaft can relatively rotate and move in the corresponding cross flow fan shaft; a connecting rod is arranged on one of the two adjacent cross-flow fan shafts, a first gear set is arranged on the connecting rod, and a second gear set is arranged on the other cross-flow fan shaft; the two adjacent cross-flow fan shafts transmit power through two gears with different sizes, which are meshed with each other, in the first gear set and the second gear set, the driving motor is used for driving one of the cross-flow fan shafts to rotate,
at least one of the first gear set and the second gear set comprises a plurality of gears with different sizes, and each gear of the first gear set and each gear of the second gear set can be meshed with each other; the positioning shaft is axially movable to effect engagement of two gears in different combinations.
2. The crossflow blower of claim 1 in which the connecting rod is coaxially disposed through each gear of the first set of gears in turn and the crossflow blower shaft is coaxially disposed through each gear of the second set of gears in turn.
3. The crossflow blower of claim 2 wherein the connecting rod comprises a first portion and a second portion, the second portion extends in a direction parallel to the axial direction of the crossflow blower shaft, one end of the first portion is fixedly connected to the crossflow blower shaft, the other end of the first portion is connected to the second portion, the second portion is provided with a plurality of gears of different sizes, and the first portion is in a telescopic structure.
4. The crossflow blower of claim 3 in which the first portion is of multi-layer telescopic construction, extendable or retractable in its axial direction.
5. The crossflow blower of claim 4 wherein the multi-layer sleeve-type structure comprises a plurality of expansion joints, the joint of two adjacent expansion joints is provided with a through hole, and a fastener is arranged in the through hole.
6. The crossflow blower of claim 1, wherein at least one of two adjacent crossflow blower shafts is axially provided with a mounting hole, and one end of the positioning shaft is rotatably arranged in the mounting hole.
7. The cross-flow fan of claim 6, wherein a plurality of limiting protrusions are axially arranged on the positioning shaft, and a plurality of limiting grooves corresponding to the limiting protrusions one to one are formed on the peripheral wall of the mounting hole of the cross-flow fan shaft; the limiting protrusion is matched with the limiting groove for use and used for limiting the distance between two adjacent cross-flow fan shafts when the positioning shaft moves along the axial direction.
8. An air conditioner comprising a crossflow blower as claimed in any one of claims 1 to 7.
9. The air conditioner according to claim 8, wherein the air outlet of the air conditioner is communicated with a plurality of mutually independent air outlet channels, and the air outlet channels are arranged in one-to-one correspondence with the cross-flow fan shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052188.9A CN109236686B (en) | 2018-09-10 | 2018-09-10 | Cross-flow fan and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052188.9A CN109236686B (en) | 2018-09-10 | 2018-09-10 | Cross-flow fan and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109236686A CN109236686A (en) | 2019-01-18 |
| CN109236686B true CN109236686B (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811052188.9A Active CN109236686B (en) | 2018-09-10 | 2018-09-10 | Cross-flow fan and air conditioner |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005623B (en) * | 2019-05-08 | 2024-05-31 | 青岛海尔空调器有限总公司 | Cross-flow fan and air conditioner comprising same |
| CN110886722A (en) * | 2019-12-13 | 2020-03-17 | 青岛海尔空调器有限总公司 | Cross flow fan capable of achieving partitioned air supply and air conditioner |
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| CN109236686A (en) | 2019-01-18 |
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Effective date of registration: 20201103 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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