CN105545777A - Fan system, air conditioner outdoor unit and heat exchange method of air conditioner outdoor unit - Google Patents
Fan system, air conditioner outdoor unit and heat exchange method of air conditioner outdoor unit Download PDFInfo
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- CN105545777A CN105545777A CN201610053533.5A CN201610053533A CN105545777A CN 105545777 A CN105545777 A CN 105545777A CN 201610053533 A CN201610053533 A CN 201610053533A CN 105545777 A CN105545777 A CN 105545777A
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- fan blade
- air
- motor
- outer machine
- blower fan
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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
- F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/327—Rotors specially for elastic fluids for axial flow pumps for axial flow fans with non identical blades
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting thereof
Abstract
The invention relates to a fan system, an air conditioner outdoor unit and a heat exchange method of the air conditioner outdoor unit, and belongs to the technical field of air conditioners. According to the mainly adopted technical scheme, the fan system comprises at least two fan blades and a motor, wherein each fan blade comprises a plurality of blade bodies. The motor is connected with the fan blades and used for driving the fan blades to rotate. The fan system is applied to the air conditioner outdoor unit and used for carrying out acting on airflow at least two times, so that heat exchange between external airflow and a heat exchanger in the air conditioner outdoor unit is carried out. The air conditioner outdoor unit comprises the fan system. According to the heat exchange method of the air conditioner outdoor unit, the fan system is adopted, so that heat exchange between the external airflow and the heat exchanger in the air conditioner outdoor unit is carried out. The fan system, the air conditioner outdoor unit and the heat exchange method of the air conditioner outdoor unit are mainly used for improving the acting ability and efficiency of the fan system on the airflow and ensuring the recirculation air volume generated by the fan system, so that the heat exchange effect of the heat exchanger of the air conditioner outdoor unit is improved.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to the heat exchange method of a kind of blower fan system, air-conditioning outer machine and air-conditioning outer machine.
Background technique
Existing air-conditioning outer machine is primarily of compositions such as refrigeration system, blower fan system and control system.Wherein, as shown in Figure 1, refrigeration system mainly comprises compressor 15, heat exchanger 14 and the copper pipe for connecting compressor 15 and heat exchanger 14.Blower fan system mainly comprises the air channel that a set of blower fan, air outlet grate 13 and air-conditioning outer machine housing are formed; Wherein, a set of blower fan of existing blower fan system mainly comprises a fan blade 12 and joins a motor 11, i.e. single-stage fan blade acting.Wherein, motor 11 drives fan blade 12 around motor 11 axially clockwise or counter-clockwise rotation; The vane drive surrounding atmosphere flowing of fan blade 12, produces air flow, thus when realizing the heat exchanger 14 that ambient air flows through in air-conditioning outer machine and the refrigeration agent of heat exchanger 14 inside carry out heat exchange.As shown in Figure 2, for the blower fan system of above-mentioned single-stage acting, take motor shaft as the blade 121 of the rotating cylindrical intercepting fan blade in axle center, then tiled in the plane, air current flow track schematic diagram can be obtained between the fan blade leaf grating shown in Fig. 2 (wherein, solid arrow is the sense of rotation of blade, and dotted arrow is the flow direction of air-flow).
In addition, the air quantity that provides of blower fan and static pressure are determined by the characteristic curve of blower fan system.When in air-conditioning outer machine using process under construction, can run into some extremely rugged environments, such as narrow space, peripheral relative closure cause air circulation resistance large etc. relatively; And in use for some time, when there will be some long-time running, there are many dusts or frosting etc. in such as heat exchanger, hinder air circulation.These network management system resistances that all result in fan operation increase, and according to fan performance curve, at this time the air quantity that provides of blower fan will high attenuation greatly, and then has slackened the heat transfer effect of heat exchanger.
To sum up, the present inventor think above-mentioned existing air-conditioning outer machine and on blower fan system at least there are the following problems: when air-conditioning outer machine uses after a period of time or when using in severe Environmental Conditions, the air quantity that blower fan system on it provides can large high attenuation, thus reduces the heat transfer effect of heat exchanger.
Summary of the invention
In view of this, the invention provides the heat exchange method of a kind of blower fan system, air-conditioning outer machine and air-conditioning outer machine, main purpose is to guarantee air-conditioning outer machine air circulation in use, improves the heat transfer effect of heat exchanger on air-conditioning outer machine.
For achieving the above object, the present invention mainly provides following technological scheme:
On the one hand, embodiments of the invention provide a kind of blower fan system, and described blower fan system comprises:
At least two fan blades, each described fan blade comprises multiple blade;
Motor, described motor is connected with described fan blade, rotates for driving described fan blade;
Wherein, described blower fan system is used on air-conditioning outer machine, carries out at least twice acting to air-flow, makes the heat exchanger in external air flow and air-conditioning outer machine carry out heat exchange.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, described fan blade is two, is respectively the first fan blade and the second fan blade; Wherein,
When described blower fan system work, the sense of rotation of described first fan blade and the second fan blade is contrary.
Preferably, one end of described motor is provided with live axle; Wherein,
Described first fan blade, the second fan blade are all connected on described live axle, and described first fan blade is between described motor and the second fan blade.
Preferably, one end of described motor is provided with the first live axle, the other end is provided with the second live axle; Wherein,
Described first live axle is connected with described first fan blade, and described second live axle is connected with described second fan blade.
Preferably, described motor is two, is respectively the first motor and the second motor; Wherein, described first motor is connected with described first fan blade; Described second motor is connected with described second fan blade.
Preferably, the axis of described first fan blade and the axis of the second fan blade are located along the same line.
Preferably, during described blower fan system work, described motor drives described first fan blade to rotate to first direction, drive described second fan blade to rotate to second direction; Or described motor drives described first fan blade to rotate to second direction, drive described second fan blade to rotate to first direction; Wherein, described first direction and second direction are two contrary directions.
On the other hand, embodiments of the invention provide a kind of air-conditioning outer machine, and described air-conditioning outer machine comprises:
Compressor;
Heat exchanger, described heat exchanger is connected with described compressor;
Blower fan system, described blower fan system is aforementioned described blower fan system.
Housing, described compressor, heat exchanger and blower fan system are all arranged in described housing; Described housing is provided with exhaust outlet.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, be provided with air channel in described housing, the one end in described air channel is communicated with described heat exchanger, and the other end is communicated with described exhaust outlet;
Wherein, described blower fan system is arranged in described air channel.
Preferably, the live axle for connecting the first fan blade and the second fan blade is provided with on one end of described motor, and the first fan blade between described motor and the second fan blade time, described motor is positioned at the position near described heat exchanger, and described second fan blade is positioned at the position near described exhaust outlet.
Preferably, the first live axle is provided with on one end of described motor, the other end is provided with the second live axle or described motor when comprising the first motor and the second motor, described first fan blade is positioned at the position near described heat exchanger, and described second fan blade is positioned at the position near exhaust outlet.
Preferably, described exhaust outlet is arrange air outlet grate on the housing.
On the other hand, embodiments of the invention provide a kind of heat exchange method of air-conditioning outer machine, adopt foregoing blower fan system to make the heat exchanger in external air flow and air-conditioning outer machine carry out heat exchange.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, when described motor drive described first fan blade to rotate to first direction, drive described second fan blade to rotate to second direction time,
Described blower fan system makes the heat exchanger of air-flow in air-conditioning outer machine carry out heat exchange process, and the air-flow after heat exchange after described first fan blade, the second fan blade acting, is discharged to outside air-conditioning outer machine by described exhaust outlet successively.
Preferably, when described motor drive described first fan blade to rotate to second direction, drive described second fan blade to rotate to first direction time,
Described blower fan system makes external air flow be entered in air-conditioning outer machine by described exhaust outlet, and the heat exchanger successively after described second fan blade, the first fan blade acting in air-conditioning outer machine carries out heat exchange process.
Compared with prior art, the heat exchange method of a kind of blower fan system of the present invention, air-conditioning outer machine and air-conditioning outer machine at least has following beneficial effect:
Do work compared with blower fan with the single-stage of prior art, the blower fan system of the embodiment of the present invention and air-conditioning outer machine are by arranging at least two fan blades, to carry out at least twice acting to air-flow, to improve blower fan system to the acting ability of air-flow and mechanical efficiency, and then improve air circulation and the exit static pressure of blower fan system generation, overcome the resistance of air-conditioning outer machine exhaust outlet, the carry heat that heat exchanger produces is gone out air-conditioning outer cage body, finally improves the heat transfer effect of heat exchanger on air-conditioning outer machine.
Further, compared with prior art is done work to the single-stage of air-flow, blower fan system in the embodiment of the present invention and air-conditioning outer machine are by arranging the first contrary fan blade of two sense of rotation and the second fan blade, make the first fan blade and the second fan blade mutually auxiliary to realize doing work to air-flow twin-stage, to improve blower fan system to the acting ability of air-flow and mechanical efficiency, strengthen the ability overcoming resistance under air-conditioning outer machine environment, the air circulation of air-conditioning outer machine under complicated installation environment, small space can be guaranteed.
Further, the blower fan system that the embodiment of the present invention provides and air-conditioning outer machine, when air quantity demand is large, makes the first fan blade and the second fan blade all run, alleviate the load of single fan blade, the fatigue, the breakage problem that occur when avoiding single fan blade high strength to run; When air quantity demand is less, blower fan system can control the first fan blade, the second fan blade slow-speed of revolution runs, or control the first fan blade, one of them fan blade runs in the second fan blade, thus saves the energy consumption that air-conditioning outer machine consumes.
Further, motor in the blower fan system that the embodiment of the present invention provides and air-conditioning outer machine can realize the bidirectional rotation of fan blade, the flow direction that can change air-flow being set like this, by changing the direction of air current flow, can realizing ensureing that air quantity changes the object of little situation to heat exchanger Lateral supply.
In addition, the heat exchange method of the air-conditioning outer machine that the embodiment of the present invention provides adopts above-mentioned blower fan system to carry out heat exchange to the heat exchanger of air-conditioning outer machine, and the heat exchange method of air-conditioning outer machine that therefore embodiment of the present invention provides has the beneficial effect described in above-mentioned any one.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the cross-sectional structure schematic diagram of the air-conditioning outer machine of prior art;
Fig. 2 is air current flow track schematic diagram between fan blade leaf grating in the blower fan system of prior art;
Fig. 3 is the cross-sectional structure schematic diagram of a kind of air-conditioning outer machine that embodiments of the invention provide;
Fig. 4 is the cross-sectional structure schematic diagram of the another kind of air-conditioning outer machine that embodiments of the invention provide;
Fig. 5 is the cross-sectional structure schematic diagram of another air-conditioning outer machine that embodiments of the invention provide;
Fig. 6 is air current flow track schematic diagram between fan blade leaf grating in the blower fan system that provides of embodiments of the invention.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the embodiment of the present patent application, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Embodiment 1
As shown in Figure 3, the present embodiment provides a kind of blower fan system, and this blower fan system is applied on air-conditioning outer machine.Particularly, the blower fan system in the present embodiment comprises at least two fan blades (blower fan system of air-conditioning outer machine comprises two fan blades as shown in Figure 3, i.e. fan blade 24 and fan blade 25) and motor 23.Wherein, each fan blade comprises multiple blade.Motor 23 is connected with fan blade, rotates for driving fan blade.Wherein, when blower fan system is used on air-conditioning outer machine, carry out at least twice acting to air-flow, the heat exchanger realized in external air flow and air-conditioning outer machine carries out heat exchange.
Be applied in compared with the blower fan system on air-conditioning outer machine with prior art, blower fan system in the present embodiment comprises at least two fan blades, at least twice acting (see Fig. 6) is carried out to air-flow, blower fan system is improved to the acting ability of air-flow and mechanical efficiency by arranging like this, and then improve air circulation and the exit static pressure of blower fan system generation, overcome the resistance of air-conditioning outer machine exhaust outlet, the carry heat that heat exchanger produces is gone out air-conditioning outer cage body, finally improves the heat transfer effect of heat exchanger on air-conditioning outer machine.
Embodiment 2
As shown in Fig. 3, Fig. 4 and Fig. 5, preferably, the present embodiment provides a kind of blower fan system, and compared with embodiment 1, the fan blade in the present embodiment blower fan system is two, is respectively the first fan blade 24 and the second fan blade 25.Further, when blower fan system works, the sense of rotation of the first fan blade 24 and the second fan blade 25 is contrary.
By arranging the first contrary fan blade 24 and the second fan blade 25 of two sense of rotation in the blower fan system of the present embodiment, first fan blade 24 and the second fan blade 25 are assisted mutually, namely one of them is upstream fan blade, another is downstream fan blade, and upstream fan blade is the inlet guide vane of downstream fan blade, downstream fan blade is the exit guide vane of upstream fan blade, realizes blower fan system and does work to the twin-stage of air-flow.
In the present embodiment, the parameter of structure design of the first fan blade 24 and the second fan blade 25 is inconsistent, the parameter choose such as blades installation angle, lobe numbers, cascade solidity on two fan blades is different, to realize doing work to the series connection of air-flow when the first fan blade 24, second fan blade 25 runs, to avoid occurring between blade that the serious or noise of transitional flow loss becomes the phenomenon such as large.
Compared with prior art is done work to the single-stage of air-flow (see air current flow track schematic diagram between fan blade leaf grating in Fig. 2 blower fan system), blower fan system in the present embodiment does work to air-flow twin-stage, with the first fan blade for upstream fan blade, second fan blade is downstream fan blade is example, in the present embodiment as shown in Figure 5, in blower fan system, between fan blade leaf grating, air current flow track schematic diagram is (wherein, the solid arrow being positioned at top refers to the sense of rotation of the first fan blade, the solid arrow being positioned at below refers to the sense of rotation of the second fan blade), first blade 241 in the blower fan system of the present embodiment on the first fan blade does work to air-flow, blade 251 on second fan blade to have first fan blade acting after air-flow do work further, which enhance blower fan system to the acting ability of air-flow and mechanical efficiency, strengthen the ability overcoming resistance under air-conditioning outer machine environment, can guarantee that air-conditioning outer machine is at complicated installation environment, air circulation under small space.
In addition, the blower fan system that the present embodiment provides can also adjust the size of fan blade acting according to different loads, reduce fan blade high strength operation risk.
Embodiment 3
As shown in Figure 3, the present embodiment provides a kind of blower fan system, compared with embodiment 2, one end of the motor 23 in the present embodiment blower fan system is provided with live axle.Wherein, the first fan blade 24 and the second fan blade 25 are installed on this live axle, and the first fan blade 24 is between motor 23 and the second fan blade 25.
In the present embodiment, the first fan blade 24 is contrary with the second fan blade 25 sense of rotation.
Embodiment 4
As shown in Figure 4, the present embodiment provides a kind of blower fan system, compared with embodiment 2, one end of the motor 23 in the present embodiment blower fan system is provided with the first live axle, the other end is provided with the second live axle.Wherein, the first fan blade 24 is arranged on the first live axle, and the second fan blade 25 is arranged on the second live axle.
In the present embodiment, the first fan blade 24 and the second fan blade 25 are arranged on different axle heads respectively, and the first fan blade 24 is contrary with the second fan blade 25 sense of rotation.
Embodiment 5
As shown in Figure 5, the present embodiment provides a kind of blower fan system, and compared with embodiment 2, the motor in the present embodiment blower fan system is two, is respectively the first motor 231 and the second motor 232.Wherein, the first motor 231 is connected with the first fan blade 24.Second motor 232 is connected with the second fan blade 25.
Preferably, the axis of the first fan blade 24 in the present embodiment and the axis of the second fan blade 25 are located along the same line.
For the blower fan system of embodiment 3 and embodiment 4, the first fan blade and the second fan blade are by an Electric Machine Control, and the first fan blade is consistent with the rotating speed of the second fan blade.In actual use, blower fan system can control the rotating speed size of these two fan blades according to the demand of air-flow.This two fan blade low speed rotation are controlled time as less in airflow requirement amount.
Compare with embodiment 4 with embodiment 3, by arranging two motors in the present embodiment, making the first fan blade 24, second fan blade 25 by different Electric Machine Control, arranging like this and the first fan blade 24 can be made different with the rotating speed of the second fan blade 25.Further, be arranged so that blower fan system so in use according to demand to throughput, control that one of them fan blade runs, another fan blade is out of service or control two fan blades all runs.As, when throughput demand is large, controls two fan blades and all run, alleviate the load that single fan blade runs, the fatigue, the breakage problem that occur when avoiding fan blade high strength to run; When throughput demand hour, except controlling the scheme of two fan blade slow-speed of revolution rotations, also adopt and control the scheme that one of them fan blade runs, another fan blade is out of service, like this while improve blower fan system working efficiency, can also energy consumption be reduced.
Embodiment 6
Preferably, the present embodiment provides a kind of blower fan system, and compared with embodiment 3, embodiment 4 and embodiment 5, the motor in the present embodiment can realize the Double-directional rotary of fan blade.Particularly, when blower fan system works, motor can drive the first fan blade to rotate to first direction, drive the second fan blade to rotate to second direction.Or when blower fan system works, motor can also drive described first fan blade to rotate to second direction, drive the second fan blade to rotate to first direction; Wherein, first direction and second direction are two contrary directions.
The present embodiment is mainly used in by above-mentioned setting the flow direction changing air-flow, and in concrete use, service condition and beneficial effect can see embodiments 11 for it.
Embodiment 7
On the other hand, the present embodiment provides a kind of air-conditioning outer machine, and as shown in Fig. 3, Fig. 4 and Fig. 5, this air-conditioning outer machine comprises compressor 22, heat exchanger 21, blower fan system and housing.Wherein, heat exchanger 21 is connected with compressor 22.Blower fan system is the blower fan system described in above-mentioned any embodiment.Compressor 22, heat exchanger 21 and blower fan system are all arranged in housing; Housing is provided with exhaust outlet 26.
Be provided with air channel in housing in the present embodiment, the one end in air channel is communicated with heat exchanger 21, and the other end is communicated with exhaust outlet 26; Wherein, blower fan system is placed in air channel.
Preferably, the exhaust outlet 26 in the present embodiment is for being arranged on the air outlet grate on housing.
Because the air-conditioning outer machine in the present embodiment have employed the blower fan system described in above-mentioned any embodiment, therefore, compared with prior art, the blower fan system of the air-conditioning outer machine of the present embodiment can promote air-conditioning outer machine air circulation in use, makes the heat transfer effect of heat exchanger on air-conditioning outer machine better.
Embodiment 8
Preferably, the present embodiment provides a kind of air-conditioning outer machine, and compared with embodiment 7, the air-conditioning outer machine that the present embodiment provides adopts the blower fan system shown in embodiment 3.As shown in Figure 3, motor 23 is arranged on the position near heat exchanger 21; Live axle is arranged on motor 23 away from one end of heat exchanger 21; First fan blade 24 and the second fan blade 25 are installed on live axle, and wherein, the first fan blade 24 is between motor 23 and the second fan blade 25; And the second fan blade 25 is positioned at the position near exhaust outlet 26.
When blower fan system operationally, motor 23 drive the first fan blade 24 to first direction rotate, drive the second fan blade 25 to rotate to second direction.Wherein, the air-flow that rotarily drives of the first fan blade 24 and the second fan blade 25 carries out heat exchange process from the suction of heat exchanger 21 side.Air-flow after heat exchange enters by after the first fan blade acting in the first fan blade 24 through motor 23 successively, and enter in the second fan blade 25, the second fan blade 25 does work further to it, is sent to outside air outlet grate.
Embodiment 9
Preferably, the present embodiment provides a kind of air-conditioning outer machine, compared with embodiment 7, when air-conditioning outer machine that the present embodiment provides adopts the blower fan system shown in embodiment 4.As shown in Figure 4, the first fan blade 24, second fan blade 25 is connected to the two ends of motor 23, and the first fan blade 24 is positioned at the position near heat exchanger 21, and the second fan blade 25 is positioned at the position near exhaust outlet 25.
When blower fan system operationally, motor 23 drive the first fan blade 24 to first direction rotate, drive the second fan blade 25 to rotate to second direction.Under the effect of the first fan blade 24, air-flow does work to it after heat exchange process is carried out in the suction of heat exchanger 21 side, makes it do work further to it through motor 23, second fan blade 25, second fan blade successively, is sent to outside air outlet grate.
Embodiment 10
Preferably, the present embodiment provides a kind of air-conditioning outer machine, and compared with embodiment 7, the air-conditioning outer machine of the present embodiment adopts the blower fan system in embodiment 5.
As shown in Figure 5, when blower fan system operationally, the first motor 231 drive the first fan blade 24 to first direction rotate, the second motor 232 drives the second fan blade 25 to rotate to second direction.Under the first fan blade 24 acts on, air-flow sucks from heat exchanger 21 side and carries out heat exchange, enters in the first fan blade 24 after airflow passes first motor 231 after heat exchange, and the first fan blade 24, to its acting, is delivered in the second fan blade 25.Air-flow after second fan blade 25 heat exchanging does work further, is delivered to outside air outlet grate by the air-flow after heat exchange.
Embodiment 11
Preferably, the present embodiment provides a kind of air-conditioning outer machine, and compared with embodiment 8, embodiment 9 and embodiment 10, the air-conditioning outer machine of the present embodiment adopts the blower fan system described in embodiment 6.
Motor in the present embodiment air-conditioning outer machine on blower fan system can realize the bidirectional rotation of fan blade, namely, except the motor as described in embodiment 8, embodiment 9 and embodiment 10 drives the first fan blade to rotate to first direction, drives the second fan blade and to rotate to second direction, also control the first fan blade by Electric Machine Control and rotate to second direction, control the second fan blade and rotate to first direction.Can realize like this air-flow is sucked from exhaust outlet, after the second fan blade, the first fan blade acting, be sent to heat exchanger 22 side.
The air-conditioning outer machine that the present embodiment provides can change the flow direction of air-flow, by changing the direction of air current flow, can realize ensureing that air quantity changes the object of little situation to heat exchanger Lateral supply.
Embodiment 12
On the other hand, the present embodiment provides a kind of heat exchange method of air-conditioning outer machine, particularly, the air-conditioning outer machine heat exchange method in the present embodiment mainly adopts the blower fan system according to any one of embodiment 1 to embodiment 6 to make external air flow carry out heat exchange to the heat exchanger in air-conditioning outer machine.
Wherein, in the present embodiment, the heat exchange method of air-conditioning outer machine is specific as follows: motor drives the first fan blade to rotate to first direction, drive the second fan blade to rotate to second direction, air-flow is under the effect of blower fan system, sucked by the heat exchanger side of air-conditioning outer machine, heat exchange is carried out with heat exchanger, air-flow after heat exchange after described first fan blade, the second fan blade acting, is discharged from air-conditioning outer machine by exhaust outlet successively.
In addition, when heat exchanger crosswind amount is less, the heat exchange method of the air-conditioning outer machine in the present embodiment can realize heat exchange by the following method: motor drive described first fan blade to second direction rotate, drive the second fan blade to rotate to first direction time, external air flow is under the effect of blower fan system, enter in air-conditioning outer machine by exhaust outlet, and the heat exchanger side be sent to after the second fan blade, the first fan blade acting successively in air-conditioning outer machine, carry out heat exchange process.To the object of heat exchanger Lateral supply when realizing ensureing that air quantity changes little by the method, promote the heat transfer effect of heat exchanger on air-conditioning outer machine.
In sum, the heat exchange method of blower fan system provided by the invention, air-conditioning outer machine and air-conditioning outer machine carries out at least twice acting by making blower fan system heat exchanging air-flow, ensure that the ability that blower fan system does work to air-flow and efficiency are improved, promote air circulation and the exit static pressure of blower fan system generation, thus improve the heat transfer effect of heat exchanger on air-conditioning outer machine.
To sum up, those skilled in the art are it is easily understood that under the prerequisite of not conflicting, and above-mentioned each advantageous manner freely can combine, superpose.
The above, it is only preferred embodiment of the present invention, not do any pro forma restriction to the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (15)
1. a blower fan system, is characterized in that, described blower fan system comprises:
At least two fan blades, each described fan blade comprises multiple blade;
Motor, described motor is connected with described fan blade, rotates for driving described fan blade;
Wherein, described blower fan system is used on air-conditioning outer machine, carries out at least twice acting to air-flow, makes the heat exchanger in external air flow and air-conditioning outer machine carry out heat exchange.
2. blower fan system according to claim 1, is characterized in that, described fan blade is two, is respectively the first fan blade and the second fan blade; Wherein,
When described blower fan system work, the sense of rotation of described first fan blade and the second fan blade is contrary.
3. blower fan system according to claim 2, is characterized in that, one end of described motor is provided with live axle; Wherein,
Described first fan blade, the second fan blade are all connected on described live axle, and described first fan blade is between described motor and the second fan blade.
4. blower fan system according to claim 2, is characterized in that, one end of described motor is provided with the first live axle, the other end is provided with the second live axle; Wherein,
Described first live axle is connected with described first fan blade, and described second live axle is connected with described second fan blade.
5. blower fan system according to claim 2, is characterized in that, described motor is two, is respectively the first motor and the second motor; Wherein, described first motor is connected with described first fan blade; Described second motor is connected with described second fan blade.
6. blower fan system according to claim 5, is characterized in that, the axis of described first fan blade and the axis of the second fan blade are located along the same line.
7. the blower fan system according to any one of claim 2-6, is characterized in that, during described blower fan system work,
Described motor drives described first fan blade to rotate to first direction, drive described second fan blade to rotate to second direction; Or
Described motor drives described first fan blade to rotate to second direction, drive described second fan blade to rotate to first direction;
Wherein, described first direction and second direction are two contrary directions.
8. an air-conditioning outer machine, is characterized in that, described air-conditioning outer machine comprises:
Compressor;
Heat exchanger, described heat exchanger is connected with described compressor;
Blower fan system, described blower fan system is the blower fan system described in any one of claim 1-7.
Housing, described compressor, heat exchanger and blower fan system are all arranged in described housing; Described housing is provided with exhaust outlet.
9. air-conditioning outer machine according to claim 8, is characterized in that, is provided with air channel in described housing, and the one end in described air channel is communicated with described heat exchanger, and the other end is communicated with described exhaust outlet;
Wherein, described blower fan system is arranged in described air channel.
10. air-conditioning outer machine according to claim 9, it is characterized in that, the live axle for connecting the first fan blade and the second fan blade is provided with on one end of described motor, and the first fan blade between described motor and the second fan blade time, described motor is positioned at the position near described heat exchanger, and described second fan blade is positioned at the position near described exhaust outlet.
11. air-conditioning outer machine according to claim 9, it is characterized in that, the first live axle is provided with on one end of described motor, the other end is provided with the second live axle or described motor when comprising the first motor and the second motor, described first fan blade is positioned at the position near described heat exchanger, and described second fan blade is positioned at the position near exhaust outlet.
12. air-conditioning outer machine according to claim 8, is characterized in that, described exhaust outlet is arrange air outlet grate on the housing.
The heat exchange method of 13. 1 kinds of air-conditioning outer machine, is characterized in that, adopts the blower fan system described in any one of claim 2-7 to make the heat exchanger in external air flow and air-conditioning outer machine carry out heat exchange.
14. air-conditioning outer machine heat exchange methods according to claim 13, is characterized in that, when described motor drive described first fan blade to rotate to first direction, drive described second fan blade to rotate to second direction time,
Described blower fan system makes the heat exchanger of air-flow in air-conditioning outer machine carry out heat exchange process, and the air-flow after heat exchange after described first fan blade, the second fan blade acting, is discharged to outside air-conditioning outer machine by described exhaust outlet successively.
15. air-conditioning outer machine heat exchange methods according to claim 13, is characterized in that, when described motor drive described first fan blade to rotate to second direction, drive described second fan blade to rotate to first direction time,
Described blower fan system makes external air flow be entered in air-conditioning outer machine by described exhaust outlet, and the heat exchanger successively after described second fan blade, the first fan blade acting in air-conditioning outer machine carries out heat exchange process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610053533.5A CN105545777A (en) | 2016-01-25 | 2016-01-25 | Fan system, air conditioner outdoor unit and heat exchange method of air conditioner outdoor unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610053533.5A CN105545777A (en) | 2016-01-25 | 2016-01-25 | Fan system, air conditioner outdoor unit and heat exchange method of air conditioner outdoor unit |
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| CN105545777A true CN105545777A (en) | 2016-05-04 |
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| CN201610053533.5A Pending CN105545777A (en) | 2016-01-25 | 2016-01-25 | Fan system, air conditioner outdoor unit and heat exchange method of air conditioner outdoor unit |
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| CN107288906A (en) * | 2017-07-19 | 2017-10-24 | 德清京达电气有限公司 | A kind of CPU heat abstractors with major-minor fan |
| CN107525154A (en) * | 2017-10-11 | 2017-12-29 | 珠海格力电器股份有限公司 | Air-conditioning internal machine and air conditioner |
| CN111102656A (en) * | 2020-01-10 | 2020-05-05 | 珠海格力电器股份有限公司 | Double-blade fan system of air conditioner outdoor unit, control method and air conditioner unit |
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Application publication date: 20160504 |