Wind-free and spiral minimal breeze air conditioner and method
By installing a turbine or kinetic energy absorption device at the air outlet of the indoor unit of the air conditioner, the kinetic energy of the wind is converted into turbine kinetic energy, and the wind speed is gradually reduced. This solves the problems of high wind speed and high energy consumption in the windless mode of the air conditioner, and achieves the effect of windless and gentle wind.
Patent Information
- Application Number
- CN202511452689.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-12
- Publication Date
- 2025-12-19
AI Technical Summary
Existing air conditioners still suffer from problems such as fast cooling speed, high energy consumption, and energy waste in windless mode, making it difficult to achieve a truly windless and gentle airflow effect.
Install a turbine or other kinetic energy-absorbing device, such as turbine blades or internal combustion engine pistons, at the air outlet of the air conditioner indoor unit. By converting the kinetic energy of the wind into the kinetic energy of the turbine, the speed of the wind coming out of the air outlet is close to zero. The turbine or steam turbine engine is used to gradually reduce the wind speed, ultimately achieving a windless or gentle wind feel.
It achieves a near-zero airflow effect in the air conditioner's windless mode, reducing energy consumption and improving the user experience.
Smart Images

Figure CN121162984A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of air conditioners, and particularly relates to a windless and spiral extremely small breeze air conditioner and a method. BACKGROUND
[0002] The existing so-called windless air conditioner is actually a wind air conditioner. A "air conditioner with dust blocking and windless function and control method thereof" disclosed by Gree Electric Appliances in Chinese Patent Publication No. CN110686317A has a preamble of claim 1 "an air conditioner with dust blocking and windless function, comprising a machine shell body, an air inlet grille is formed in the upper end of the machine shell body, and an air outlet is formed in the lower end of the machine shell body". The preamble of the claim is prior art, and the feature part of the claim and the description do not mention anything about "cold air coming out of the upper air outlet, going to the roof and then being scattered on the body, and then returning to the lower air inlet; hot air coming out of the lower air outlet, first warming the feet and then the body". This has three defects: 1. the cold air falling from high altitude to the lower part at a high speed has a bad body feeling; 2. the cold air blown to the high altitude and then scattered on the body consumes a large amount of energy, which pushes the air in the whole house to flow quickly, and has a bad body feeling; 3. the cold air blown to the high altitude and then scattered on the body consumes a large amount of energy.
[0003] From the above patent claim 9 item (3) "the sliding plate moves downward from the default position, and when the sliding plate completely covers the air outlet, the sliding plate stops moving to realize the windless function", and the last second paragraph of the description "moving the sliding plate downward, so that the airflow passes through the air holes on the sliding plate, and the airflow can only pass through the air holes on the sliding plate, the airflow is blocked and the flow rate is reduced, the airflow flows out of all the air holes, and the airflow sound is greatly reduced, finally realizing the windless function", it can be known that the patent technology is to "realize the windless function by making the airflow pass through the air holes on the sliding plate and reducing the flow rate after being blocked".
[0004] The first claim of the aforementioned patent, which describes a "slide rail on the housing, a sliding plate on the slide rail for blocking the air inlet grille or air outlet, and multiple ventilation holes on the sliding plate," demonstrates that it, along with Chinese patents CN105042761B and CN107990525A (titled "An Air Conditioner and Its Wind Speed Control Method" and "An Air Conditioner Indoor Unit and Its Control Method, Air Conditioning Equipment"), achieves the so-called "windless" or "gentle windless" function through "multiple ventilation holes on the sliding plate," "holes punched in the air diffuser plate," and "perforations on the indoor unit's air guide plate and front panel, with the baffle angle adjusted by 25 degrees." However, the air forced out through these holes is not just wind, but a relatively strong wind, making it difficult to truly achieve the "windless" or "gentle windless" function of an air conditioner. Summary of the Invention
[0005] The present invention aims to overcome the shortcomings of the above-mentioned air conditioners and the long-standing biases or prejudices of people, and to provide a windless and spiral minimal wind air conditioner and method.
[0006] The method by which air conditioners generate no wind or extremely fine spiral breezes is to convert all the kinetic energy of the air from the air outlet of the air conditioner's indoor unit into the kinetic energy of the turbine (wind wheel) or other objects (such as the piston of an internal combustion engine), so that the air speed becomes zero or close to zero after it comes out of the air outlet between the turbine blades or other objects, thus becoming "still" air with no or close to no kinetic energy, that is: "still" air with no speed or close to "still" air with no speed.
[0007] Based on the above-mentioned methods for generating windless and extremely fine spiral airflow in air conditioners, windless and spiral airflow air conditioners can be manufactured by installing a turbine (fan wheel) or other objects that can "absorb" kinetic energy (such as the piston of an internal combustion engine) at the air outlet end of the air conditioner indoor unit, so that the air entering the turbine or other objects that can "absorb" kinetic energy from the air outlet end of the air conditioner indoor unit, etc., becomes zero or close to zero speed after exiting from the air outlet between the turbine blades or other objects.
[0008] To reduce the velocity of the air coming out of the air outlet between the blades to 0 or close to 0, the turbine can be controlled to prevent it from rotating. At this time, the velocity V of the air at the turbine outlet (in the direction of the turbine tangent 1) can be measured.
[0009] It is well known that the wind can push the turbine to work, the turbine can drive the rotor of the generator to rotate to generate electricity, etc. The wind does work and reduces the speed or kinetic energy of the wind. When the speed of the wind is V, the direction is the tangent direction 1 of the turbine, the wind pushes the turbine, and the linear speed of the outflow of the turbine is also V, the direction is the opposite direction of the tangent direction 1 of the turbine, and the speed or kinetic energy of the wind is all converted into the kinetic energy of the turbine, so that the speed of the wind is reduced to 0 or close to 0 when it comes out of the outlet (this is similar to a person jumping down from a huge propeller rotating parallel to the ground at a very slow speed, and the person pushes the propeller with his feet to obtain a speed equal in size and opposite in direction to the propeller, at which time the person can "stay" on the ground).
[0010] Because the air entering the turbine (will stay in the turbine for a short time) will have a speed following the rotation of the turbine due to the action of friction, the speed is opposite in direction to the speed V, but much smaller than the speed V and can be ignored.
[0011] Because the work done by the air with a linear speed of V pushing out of the turbine outlet is far from enough to increase the linear speed of the turbine outlet to close to the speed V, at this time, an electric motor or other power machine needs to be used to supply some kinetic energy to the turbine to make its speed close to V (opposite in direction to V), so that the wind speed is reduced to 0 or close to 0 when it comes out of the outlet; a plurality of turbines can also be "connected in series" to let the wind enter the turbine to push the "one by one" turbine to work step by step, to reduce the wind speed step by step, and finally to 0 or close to 0.
[0012] The wind with a speed that is reduced more and more low will eventually be called "unable to push" the turbine (unable to move the turbine), which is equivalent to almost unable to do work on the turbine, at this time, the "connected in series" turbine near the end of the outlet can be selected to have a larger and larger diameter (turbine) to make the same air impact it to produce a larger torque and make it (slow) rotate, so as to as far as possible to "transfer" the air (speed) kinetic energy to the turbine to convert it into the kinetic energy of the turbine, and as far as possible to reduce the speed of the air to 0 or close to 0 when it comes out of the outlet.
[0013] The principle of the steam turbine engine can also be referred to, and a super small or micro steam turbine engine can be manufactured in a small scale to let the air with a speed of V entering the turbine to replace the steam to push the super small or micro steam turbine engine to work and reduce the speed of the air.
[0014] After the turbine is replaced by a plurality of turbines "connected in series" or a super small or micro steam turbine engine, an electric motor or other power machine can still be used to supply some kinetic energy to it to as far as possible to reduce the speed of the air to 0 or close to 0 when it comes out of the outlet.
[0015] Figure 1The turbine in the above-mentioned turbine or super small or micro steam turbine engine is parallel to the ground, when its shaft is perpendicular to the ground, the air from the air outlet between the turbine blades 2, if there is a very small speed close to 0, the direction is tangent direction 1, which will make the air in the house (indoor) rotate at a very small speed in the whole house (for the sake of explanation, this turbine can be placed in the center of a circular house, at this time, as long as there is a continuous flow of air from the air outlet between the turbine blades 2 along the tangent direction of the turbine, even if the speed is extremely small, the air will definitely rotate slowly in the whole house, and as long as it is rotating in the circular house, it will also be rotating in other houses such as rectangular houses, but the resistance in other shaped houses is greater, and the speed is smaller). The gentle breeze of this spiral extremely small speed movement is difficult for the human body to feel, and even if it is felt, it is a soft wind.
[0016] The distance between the turbine blades 2 in the turbine or super small or micro steam turbine engine is preferably 5mm, so that the linear speed of the air from the air outlet between the turbine blades 2 close to the center axis of the turbine and far from the center axis of the turbine will not differ too much, while ensuring sufficient air output.
[0017] The kinetic energy and power obtained by the above-mentioned turbine or super small or micro steam turbine engine can be applied to the components that need to be driven by the air conditioner after being changed by the transmission, such as the cross-flow fan (centrifugal fan) that pushes the cold air flow (to the air outlet), so that the energy can be utilized.
[0018] As can be seen from the above, the air from the air outlet of the indoor unit of the air conditioner enters the turbine or several "tandem" turbines or super small or micro steam turbine engines, and then comes out, such as from the air outlet between the turbine blades 2 to the indoor, the speed can be reduced to 0 (static air) or close to 0 (rotating extremely small breeze), which can truly realize the no-wind feeling and soft wind feeling functions of the air conditioner, respectively. Overcome the three defects of the prior art: 1. The cold air falls from high altitude to the ground at a high speed, which produces an uncomfortable feeling to the human body (because the cold air is heavy and dense, when it flows down from high altitude, the speed is very fast. For example, when you open the refrigerator, the cold air in the refrigerator will flow quickly to your body, especially your feet. The speed from the roof to the floor is definitely faster than from the refrigerator). 2. The cold air is "blown to the sky and then scattered down to the human body", which means that the cold air has obtained a lot of energy, and the cold air with a lot of energy will definitely push the whole house air to flow quickly, which will produce an uncomfortable feeling to the human body; 3. The cold air is "blown to the sky and then scattered down to the human body", which consumes a lot of energy, which increases the electricity bill.
[0019] Figure 12 is the turbine blade, 1 is the direction of the air outlet between the turbine blades 2, which is also the tangent direction of the turbine. The turbine blade 2 should be designed as much as possible to make the direction of the air outlet the tangent direction of the turbine, so that the air from the turbine blade 2 flows out from the tangent direction of the turbine (the direction makes the torque of the air impacting the turbine blade the largest, the ability of the air to do work the strongest, and the ability to reduce the speed of the air the strongest).
[0020] Figure 1 A turbine similar to a range hood.
Claims
1. A method for generating windless or extremely fine spiral breezes, such as in an air conditioner, characterized by: The kinetic energy of the air from the air outlet of the indoor unit of the air conditioner is completely converted into the kinetic energy of the turbine or other objects, so that the speed of the air coming out of the air outlet between the turbine blades or other objects becomes zero or close to zero.
2. A windless and spiral minimal wind air conditioner manufactured according to the method of claim 1, characterized in that: in Turbines or other objects that can "absorb" kinetic energy are installed at the air outlet of indoor air conditioning units, so that the speed of the air coming out of the turbine or other components becomes zero or close to zero.
3. The turbine as described in claim 2, characterized in that: The turbine in question consists of several turbines connected in series. When air enters the turbine, it drives each turbine individually, gradually reducing its speed.
4. The turbine as described in claim 2, characterized in that: The turbine in question is a miniature or micro steam turbine engine.
5. The turbine as described in claim 2, 3, or 4, characterized in that: The aforementioned turbine or Several turbines connected in series or Miniature or micro steam turbine engines It is powered by an electric motor or other power source.
6. The turbine, miniature, or micro steam turbine engine as described in claim 2, 3, 4, or 5, characterized in that: The aforementioned turbine or Turbines of ultra-small or micro steam turbine engines The distance between the blades is 5 millimeters.
7. The turbine, a plurality of turbines "connected in series", or a miniature or micro steam turbine engine as described in any one of claims 1 to 6, characterized in that: Air from the air outlet of the indoor unit of the air conditioner enters the aforementioned turbine or Several turbines connected in series or Miniature or micro steam turbine engine After that, go outside and go indoors. Still air (no wind) or A very slight, rotating breeze.
8. The turbine as claimed in any one of claims 1 to 6, a plurality of turbines "connected in series", a miniature or micro steam turbine engine, characterized in that: The aforementioned turbine or Several turbines connected in series or Miniature or micro steam turbine engines The acquired kinetic energy and power are applied to the components of the air conditioner that need to be driven.
Citation Information
Patent Citations
Air conditioners and their fan speed control methods
CN105042761B
Air conditioner indoor unit, control method thereof and air conditioning equipment
CN107990525A
Air conditioner with dust blocking and wind-feeling-free functions and control method thereof
CN110686317A