WO2021057471A1

WO2021057471A1 - Air conditioner outdoor unit and air conditioner

Info

Publication number: WO2021057471A1
Application number: PCT/CN2020/114076
Authority: WO
Inventors: 李书佳; 马春田; 陈倩倩; 李建萍; 黄罡; 张乃伟
Original assignee: 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2019-09-24
Filing date: 2020-09-08
Publication date: 2021-04-01
Also published as: CN110736159B; CN110736159A

Abstract

An air conditioner outdoor unit and an air conditioner. The air conditioner outdoor unit comprises an axial fan and a fan motor, the axial fan comprising a plurality of fan blades; an output shaft of the fan motor is connected to a central rotor, the central rotor is provided with a plurality of fan blade mounting holes, tail ends of the plurality of fan blades pass through the fan blade mounting holes and then are rotatably connected to an adjustment mechanism, the adjustment mechanism comprises an elastic pre-tightening member and a rotary shaft, the elastic pre-tightening member is sleeved on the rotary shaft and is fixedly connected to the central rotor, the rotary shaft is fixedly connected to the central rotor, and a first end of the rotary shaft extends into the central rotor and is connect to the tail ends of the fan blades; and the elastic pre-tightening member is configured such that when the central rotor runs at a low rotational speed, a centrifugal force generated by the central rotor is smaller than a pre-tightening force of the elastic pre-tightening member, so that the rotary shaft drives the fan blades to rotate in a direction of increasing the windward area.

Description

Air conditioner outside unit and air conditioner

Technical field

The present invention relates to the technical field of air conditioners, in particular to an outdoor unit of an air conditioner and an air conditioner.

Background technique

Air conditioner is a kind of equipment that adjusts and controls the temperature, humidity, flow rate and other parameters of ambient air in a building. The current air conditioners usually include the external air conditioner and the internal air conditioner according to the installation location. The basic function of the external air conditioner is to compress the low-temperature and low-pressure gas discharged from the internal air conditioner into high-pressure, high-temperature gas to cool and dissipate the air outside, and condense the The refrigerant liquid is then sent to the evaporator of the internal unit of the air conditioner to absorb indoor heat; the internal unit of the air conditioner mainly uses the refrigerant liquid delivered by the external unit of the air conditioner to exchange heat with the indoor air to achieve the purpose of heat exchange. It has the function of blowing and air conditioning system control.

In the prior art, the external unit of the air conditioner generally includes a compressor, a condenser, a capillary tube, an axial fan, and a fan motor. Among them, the compressor, the condenser, the capillary tube, and the evaporator in the internal unit of the air conditioner are connected in series, mainly for heat exchange. The purpose of the axial flow fan is to realize the main function of the air conditioner; the axial flow fan is arranged on the outside of the condenser, and the axial flow fan mainly plays a role of heat dissipation. Driven by the fan motor, the axial flow fan can reduce the heat of the condenser to improve the cooling of the air conditioner. Heating efficiency.

However, in the prior art, the windward area of the axial flow fan blades is changed by the fixed part. When the air conditioner is running in a low power state, the axial flow fan has a low rotational speed, which causes the axial flow fan to emit heat per unit time. It is lower, which may cause the heat and cold air in the external unit of the air conditioner to not be discharged in time, which affects the efficiency of the air conditioner.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the frontal area of the axial fan blades in the prior art cannot be changed, resulting in poor heat dissipation of the air conditioner in a low power state, the present invention provides an air conditioner The external machine includes an axial fan and a fan motor. The axial fan includes a plurality of fan blades. The output shaft of the fan motor is connected to a central rotor. The central rotor is provided with a plurality of fan blade mounting holes, and a plurality of fan blades are provided on the central rotor. The end of the fan blade is rotatably connected with the adjustment mechanism after passing through the fan blade installation hole. The adjustment mechanism includes an elastic pretensioner and a rotating shaft. The central rotor is fixedly connected, the rotating shaft is fixedly connected to the central rotor, and the first end of the rotating shaft extends into the central rotor to connect the end of the fan blade; the elastic pretensioner is configured to act as the When the central rotor runs at a low speed, the centrifugal force generated by the central rotor is smaller than the pre-tightening force of the elastic pre-tensioning member, so that the rotating shaft drives the fan blades to rotate in a direction where the windward area increases.

In the air conditioner outdoor unit as described above, optionally, the central rotor includes a body and an end cover that are detachably connected, an accommodating cavity is formed in the body, and a plurality of support seats are provided in the accommodating cavity, and the support A shaft sleeve is arranged on the seat, and the shaft sleeve is sleeved on the fan blade.

In the air conditioner as described above, optionally, the end of the fan blade is connected with a first bevel gear, and the end of the rotating shaft is connected with a second bevel gear, the first bevel gear and the second bevel gear To mesh with each other.

In the air conditioner outdoor unit as described above, optionally, the elastic pretensioner includes a plurality of spring plates and a spring plate base, and the spring plate base includes a bottom wall and a vertical side wall vertically arranged on the bottom wall , The bottom wall is provided with a first through hole for connecting the rotating shaft, and an installation groove for installing the spring sheet is formed between the outer side wall of the first through hole and the vertical side wall, and One of the spring pieces is fixedly connected between the first through hole and the vertical side wall.

In the above-mentioned outdoor unit of the air conditioner, optionally, one end of the spring sheet away from the first through hole is fixedly connected to the end cover by a stud bolt.

In the above-mentioned outdoor unit of the air conditioner, optionally, the end cover is provided with a second through hole, and the rotating shaft and the second through hole are fixedly connected by a spline.

In the air conditioner as described above, optionally, a power generation device and an energy storage device are further connected to the second end of the rotating shaft, and the power generation device is used to convert the mechanical energy output by the rotating shaft into electrical energy. The device is used to store the electrical energy of the power generation device.

In the air conditioner outdoor unit as described above, optionally, the power generating device includes a first brake, a gearbox, a second brake, and a generator, the first brake is connected to the rotating shaft, and the output end of the first brake is connected to In the gearbox, the output end of the gearbox is connected to the second brake, the output end of the second brake is connected to the generator, and the generator is electrically connected to the energy storage device.

In the air conditioner outdoor unit as described above, optionally, the elastic pretensioner is configured such that when the central rotor is running at a high speed, the centrifugal force generated by the central rotor is greater than the pretension of the elastic pretensioner Force, so that the rotating shaft drives the fan blades to rotate in a direction in which the windward area decreases.

Another embodiment of the present invention provides an air conditioner, which includes an air conditioner outer unit and an air conditioner inner unit that are connected to each other, and the air conditioner outer unit adopts any one of the above-mentioned air conditioner outer units.

Those skilled in the art can understand that the external air conditioner of the present invention includes an axial fan and a fan motor. The axial fan includes a plurality of fan blades. The output shaft of the fan motor is connected to a central rotor, and the central rotor is provided with a plurality of fan blades. Mounting hole, the ends of a plurality of fan blades pass through the fan blade mounting hole and are rotatably connected with the adjustment mechanism. The adjustment mechanism includes an elastic pretensioner and a rotating shaft. The elastic pretensioner is sleeved on the rotating shaft and is fixedly connected to the central rotor. It is fixedly connected with the central rotor, and the first end of the rotating shaft extends into the central rotor to connect the end of the fan blade; the elastic pretensioner is configured such that when the central rotor is running at a low speed, the centrifugal force generated by the central rotor is less than that of the elastic pretensioner Pre-tightening force, so that the rotating shaft drives the fan blades to rotate in the direction of increasing windward area. With the above arrangement, when the air conditioner is running in a low power state, the centrifugal force when the central rotor rotates is less than the pre-tightening force of the elastic pre-tensioning member, so the elastic pre-tensioning member will promote the rotation of the shaft, thereby increasing the area facing the wind of the fan blade. Rotate in the direction of, increase the heat output of the axial fan per unit time, so that the heat and cold air in the air conditioner's external unit can be discharged in time, and the cooling and heating efficiency of the air conditioner is improved.

Description of the drawings

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and the present invention is not limited to the following specific embodiments. The attached picture is:

Figure 1 is a right side view of the external air conditioner of the present invention;

Figure 2 is a front view of the external air conditioner of the present invention with the grille removed;

Fig. 3 is a schematic diagram of the structure of the inlet grille of the present invention;

4 is a schematic diagram of the structure of the axial fan, fan motor, power generation device and energy storage device of the present invention;

Fig. 5 is a cross-sectional view taken along the line A-A in Fig. 4.

Description of reference signs:

100 Fan Motor 200 Fan Blade 210 First Bevel Gear

300 Center rotor 310 Body 311 Support seat

312 Shaft sleeve 320 End cap 400 Elastic pretensioner

410 Spring leaf 420 Spring leaf base 421 Bottom wall

422 Vertical side wall 500 shaft 510 second bevel gear

600 Double-headed bolt 700 Power generation device 710 First brake

720 Gearbox 730 Second brake 740 Generator

750 power generation device support 760 support 800 energy storage device

810 Storage battery 1000 Outer machine housing 1100 Outer machine top cover

1200 Outer machine bottom plate 1210 Legs 1300 Outer machine front guard plate

1310 Into the style grid 1311 Power generation device connection frame 1312 Mounting hole

1320 Into the style grille 1400 Outer machine rear guard plate 1500 Outer machine side guard plate

1600 Fan Motor Bracket 1700 Condenser 1800 Handle

1910 Liquid inlet port 1920 Liquid return port

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are a part of the embodiments of the present invention, but not all of the embodiments.

Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Example one

Fig. 1 is a right side view of the outdoor unit of the air conditioner of the present invention; Fig. 2 is a front view of the outdoor unit of the present invention with the air inlet grille removed; Fig. 3 is a schematic structural diagram of the air inlet grill of the present invention; Fig. 4 is the present invention The structure diagram of the invented axial fan, fan motor, power generating device and energy storage device; Fig. 5 is a cross-sectional view taken along line AA in Fig. 4; please refer to Figs. 1-5. This embodiment provides an external air conditioner, including an axial fan and a fan motor 100. The axial fan includes a plurality of fan blades 200. The output shaft of the fan motor 100 is connected to a central rotor 300, and the central rotor 300 is provided with multiple fans. Blade mounting holes, the ends of a plurality of fan blades 200 are rotatably connected with the adjusting mechanism after passing through the fan blade mounting holes. The adjusting mechanism includes an elastic pre-tensioning member 400 and a rotating shaft 500. The elastic pre-tensioning member 400 is sleeved on the rotating shaft 500 and connected to the rotating shaft 500. The central rotor 300 is fixedly connected, the rotating shaft 500 is fixedly connected to the central rotor 300, the first end of the rotating shaft 500 extends into the central rotor 300 to connect to the end of the fan blade; the elastic pretensioner 400 is configured to operate when the central rotor 300 runs at a low speed At this time, the centrifugal force generated by the central rotor 300 is less than the pre-tightening force of the elastic pre-tensioning member 400, so that the rotating shaft 500 drives the fan blade 200 to rotate in a direction in which the windward area increases.

As shown in Figure 1, the air conditioner outdoor unit of this embodiment includes an outer unit casing 1000, which consists of an outer unit upper cover 1100, an outer unit bottom plate 1200, an outer unit front guard plate 1300, an outer unit rear guard plate 1400 and The outer machine side guard plate 1500 is combined. The outer machine upper cover 1100, the outer machine bottom plate 1200, the outer machine front guard plate 1300, the outer machine rear guard plate 1400 and the outer machine side guard plate 1500 can be connected by rivets or bolts and other fasteners. . Optionally, a leg 1210 may be provided under the bottom plate 1200 of the outdoor unit to facilitate the installation of the outdoor unit of the air conditioner.

Please continue to refer to Figure 1, Figure 2 and Figure 4, the front guard plate 1300 of the outdoor unit is also provided with an inlet grill groove 1320 for installing an inlet grill 1310. After the inlet grill 1310 is installed, it will be connected to the inside of the air conditioner outdoor unit. The fan motor bracket 1600 is opposite to the condenser 1700. A handle 1800 is also provided on the outer machine side guard 1500 to facilitate the handling of the outer machine. The outer machine side shield 1500 is also provided with a liquid inlet 1910 and a liquid return port 1920 connected to the condenser 1700. The fan motor bracket 1600 is provided with a fan motor 100. The output shaft of the fan motor 100 is connected to the central rotor 300, and the central rotor 300 drives the axial flow fan to rotate. The axial flow fan can discharge the heat of the condenser 1700 and the fan motor 100 during operation , So as to improve the cooling and heating efficiency of the air conditioner, and increase the service life of the parts and components of the air conditioner.

Specifically, the axial fan of this embodiment includes a plurality of fan blades 200, the central rotor 300 is provided with a plurality of fan blade mounting holes, and the ends of the plurality of fan blades 200 are rotatably connected with the adjusting mechanism after passing through the fan blade mounting holes. . In this way, when the central rotor 300 rotates, the fan blade 200 can be driven to rotate therewith, so as to realize the function of an axial fan in the prior art; at the same time, the fan blade 200 can also be rotated through an adjusting mechanism to adjust the windward direction of the fan blade 200. area.

The central rotor 300 specifically includes a body 310 and an end cover 320 that are detachably connected. The body 310 is formed with a receiving cavity. A plurality of supporting seats 311 are arranged in the containing cavity. The supporting seats 311 are fixedly connected to the body 310. The supporting seats 311 are provided with The shaft sleeve 312 and the shaft sleeve 312 are sleeved on the fan blade 200 to limit the end of the fan blade 200 while ensuring that the fan blade 200 can rotate.

The adjustment mechanism in this embodiment specifically includes an elastic pretensioner 400 and a rotating shaft 500, wherein the elastic pretensioner 400 is sleeved on the rotating shaft 500 and is fixedly connected to the central rotor 300, and the rotating shaft 500 is fixedly connected to the central rotor 300. The first end extends into the central rotor 300 to connect to the end of the fan blade 200.

In this embodiment, the elastic pretensioner 400 is configured such that when the central rotor 300 runs at a low speed, the centrifugal force generated by the central rotor 300 is less than the pretension force of the elastic pretensioner 400, so that the rotating shaft 500 drives the fan blade 200 toward Rotate in the direction where the windward area increases. With the above arrangement, when the air conditioner is running in a low-power state, the centrifugal force when the central rotor 300 rotates is less than the pre-tightening force of the elastic pre-tensioning member 400, so the elastic pre-tensioning member 400 will prompt the rotating shaft 500 to rotate, thereby causing the fan blade 200 to rotate. Rotate in the direction of increasing windward area to increase the heat output per unit time of the axial fan, so that the heat and cold air in the external unit of the air conditioner can be discharged in time, and the cooling and heating efficiency of the air conditioner is improved.

In an alternative embodiment, a first bevel gear 210 is connected to the end of the fan blade 200, a second bevel gear 510 is connected to the end of the rotating shaft 500, and the first bevel gear 210 and the second bevel gear 510 mesh with each other, so that the rotating shaft 500 can drive the fan blade 200 to rotate through the gear mechanism composed of the first bevel gear 510 and the second bevel gear 520 to realize the adjustment of the windward area of the fan blade 200.

The elastic pretensioning member 400 specifically includes a plurality of spring plates 410 and a spring plate base 420. The spring plate base 420 includes a bottom wall 421 and a vertical side wall 422 vertically arranged on the bottom wall. The bottom wall 421 is provided with a rotating shaft 500. The first through hole of the first through hole is formed between the outer side wall of the first through hole and the vertical side wall 422 to form a mounting groove for installing the spring piece 410, and a plurality of spring pieces 410 are fixedly connected to the first through hole and the vertical side wall 422 In between, the rotating shaft 500 passes through the first through hole.

In this embodiment, the elastic pretensioner 400 and the central rotor 300 are fixed by the spring plate 410 and the end cover 320. Specifically, the end of the spring plate 410 away from the first through hole is passed through the stud 600 and the end cover 320. It is fixedly connected, so that the central rotor 300 can drive the elastic predicting member 400 to rotate integrally.

In this embodiment, the fixed connection between the rotating shaft 500 and the central rotor 300 may be as follows: a second through hole is provided on the end cover 320, and the rotating shaft 500 passes through the second through hole and is fixedly connected to the second through hole through a spline. In this way, the rotating shaft 500 can also rotate integrally with the central rotor 300.

Since the central rotor 300 and the elastic pretensioner 400 are connected by the stud bolts 600, the central rotor 300 will generate centrifugal force away from the elastic pretensioner 400 when rotating, so that the rotation pace of the elastic pretensioner 400 is the same as that of the central rotor 300. has a difference. However, due to the existence of the spring leaf 410, the pre-tightening force provided by the spring leaf 410 can offset the influence of the centrifugal force of the central rotor 300 to a certain extent. In this embodiment, when the air conditioner is running at low power, the rotation speed of the central rotor 300 is low. At this time, the centrifugal force generated by the central rotor 300 is less than the pretension force of the spring plate 410, and the spring plate base 420 and the rotating shaft 500 are generated between The relative movement tends to drive the rotating shaft 500 to rotate, so that the rotating shaft 500 drives the fan blade 200 to rotate in the direction of increasing the windward area through the gear structure, so as to improve the heat dissipation efficiency of the axial flow fan.

Further, in this embodiment, the second end of the shaft 500 is also connected to a power generation device 700 and an energy storage device 800. The power generation device 700 is used to convert the mechanical energy output by the shaft 500 into electrical energy, and the energy storage device 800 is used to store the power generation device. 700 of electricity.

Specifically, please refer to Figures 1 to 4, the power generating device 700 includes a first brake 710, a gearbox 720, a second brake 730, and a generator 740. The first brake 710 is connected to the shaft 500, and the output end of the first brake 710 is connected to the speed changer. In the box 720, the output end of the gearbox 720 is connected to the second brake 730, the output end of the second brake 730 is connected to the generator 740, and the generator 740 is electrically connected to the energy storage device 800.

The outer shell of the power generating device 700 is connected to the outer casing of the air conditioner through the power generating device bracket 750. Specifically, as shown in FIG. 3, a power generating device connecting frame 1311 is provided on the inlet grill 1310, and the center of the power generating device connecting frame 1311 A mounting hole 1312 is provided for the rotation shaft 500 to pass through, and the power generating device bracket 750 is connected to a fixing bolt hole provided on the power generating device connecting frame 1311 through fasteners such as bolts. The inside of the power generating device 700 is also provided with a bracket 760. The bracket 760 divides the inside of the power generating device 700 into an upper and lower structure. Among them, the first brake 710, the gearbox 720, the second brake 730 and the generator 740 are all arranged on the bracket 760. The upper part is fixedly connected to the bracket 760 by fastening bolts and other fasteners; the wire is connected from the generator 740 and enters the lower part of the bracket 760 to facilitate wiring, and to isolate the wire from other devices also improves the safety of the equipment .

Optionally, in this embodiment, the energy storage device 800 is fixedly connected under the power generation device 700, and the energy storage device 800 is provided with a battery 810, and the battery 810 is connected to the power output end of the generator 740 through a wire, thereby achieving the purpose of storing electrical energy. .

In this embodiment, the elastic pretensioner 400 is also configured such that when the central rotor 300 runs at a high speed, the centrifugal force generated by the central rotor 300 is greater than the pretension force of the elastic pretensioner 400, so that the rotating shaft 500 drives the fan blade 200 Turn in the direction where the windward area decreases. That is, when the air conditioner is running at high power, or the air conditioner is affected by the external wind and the speed of the central rotor 300 is high, the centrifugal force generated by the central rotor 300 at this time is greater than the pretension force of the spring plate 410, and the spring plate base 420 There is a tendency to move relative to the rotating shaft 500 and drive the rotating shaft 500 to rotate, so that the rotating shaft 500 drives the fan blade 200 to rotate in the direction of reducing the windward area through the gear structure. At the same time, the reduction of the rotating shaft 500 speed can also ensure that the first brake 710 and The second brake 730 works in a safe speed range to protect the power generating device 700.

Example two

This embodiment provides an air conditioner, which includes an air conditioner outer unit and an air conditioner inner unit that are connected to each other, wherein the air conditioner outer unit adopts the air conditioner outer unit as described in the first embodiment.

The difference between the air conditioner of this embodiment and the prior art is that when the air conditioner is running in a low power state, the centrifugal force when the central rotor rotates is less than the pretension force of the elastic pretensioner, so the elastic pretensioner will promote the rotation of the shaft. As a result, the fan blades rotate in the direction of increasing the windward area, and the heat output per unit time of the axial fan is increased, so that the heat and cold air in the external unit of the air conditioner can be discharged in time, and the cooling and heating efficiency of the air conditioner is improved.

Those skilled in the art should understand that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless specifically defined otherwise.

It should be noted that in the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "Radial", "Circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the pointed device or The element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention. range.

Claims

An air conditioner outdoor unit includes an axial flow fan and a fan motor, the axial flow fan includes a plurality of fan blades, the output shaft of the fan motor is connected to a central rotor, and the central rotor is provided with a plurality of fan blade mounting holes, The ends of a plurality of the fan blades are rotatably connected with the adjustment mechanism after passing through the fan blade installation hole. The adjustment mechanism includes an elastic pre-tensioning member and a rotating shaft, and the elastic pre-tensioning member is sleeved on the rotating shaft and Fixedly connected to the central rotor, the rotating shaft is fixedly connected to the central rotor, the first end of the rotating shaft extends into the central rotor to connect to the end of the fan blade; the elastic pretensioner is configured to When the central rotor runs at a low speed, the centrifugal force generated by the central rotor is less than the pre-tightening force of the elastic pre-tensioning member, so that the rotating shaft drives the fan blades to rotate in a direction where the windward area increases.
The air conditioner outdoor unit according to claim 1, wherein the central rotor includes a body and an end cover that are detachably connected, a containing cavity is formed in the body, and a plurality of supporting seats are provided in the containing cavity, the A shaft sleeve is arranged on the supporting seat, and the shaft sleeve is sleeved on the fan blade.
The air conditioner external unit according to claim 2, wherein the end of the fan blade is connected with a first bevel gear, the end of the rotating shaft is connected with a second bevel gear, and the first bevel gear is connected to the second bevel gear. The gears mesh with each other.
The air conditioner outdoor unit according to claim 3, wherein the elastic pretensioner includes a plurality of spring plates and a spring plate base, and the spring plate base includes a bottom wall and a vertical side vertically arranged on the bottom wall. The bottom wall is provided with a first through hole for connecting the rotating shaft, and an installation groove for installing the spring leaf is formed between the outer side wall of the first through hole and the vertical side wall, A plurality of the spring sheets are fixedly connected between the first through hole and the vertical side wall.
The air conditioner outdoor unit according to claim 4, wherein the end of the spring piece away from the first through hole is fixedly connected to the end cover by a stud bolt.
The air conditioner outdoor unit according to claim 5, wherein the end cover is provided with a second through hole, and the rotating shaft and the second through hole are fixedly connected by a spline.
The air conditioner outdoor unit according to any one of claims 1-6, wherein the second end of the rotating shaft is also connected with a power generating device and an energy storage device, and the power generating device is used to convert the mechanical energy output by the rotating shaft into Electric energy, the energy storage device is used to store the electric energy of the power generation device.
The air conditioner outdoor unit according to claim 7, wherein the power generating device includes a first brake, a gearbox, a second brake, and a generator, the first brake is connected to the rotating shaft, and the output end of the first brake The gearbox is connected, the output end of the gearbox is connected to the second brake, the output end of the second brake is connected to the generator, and the generator is electrically connected to the energy storage device.
The air conditioner outdoor unit according to claim 8, wherein the elastic pretensioner is configured such that when the central rotor runs at a high speed, the centrifugal force generated by the central rotor is greater than the pretension of the elastic pretensioner. Tight force, so that the rotating shaft drives the fan blades to rotate in a direction in which the windward area decreases.
An air conditioner, comprising an external air conditioner and an internal air conditioner that are connected to each other, and the external air conditioner adopts the external air conditioner according to any one of claims 1-9.