WO2022100615A1

WO2022100615A1 - Air supply mechanism and air conditioner

Info

Publication number: WO2022100615A1
Application number: PCT/CN2021/129828
Authority: WO
Inventors: 卢海天; 谢川川; 胡斯特
Original assignee: 广东美的白色家电技术创新中心有限公司; 美的集团股份有限公司
Priority date: 2020-11-13
Filing date: 2021-11-10
Publication date: 2022-05-19
Also published as: CN112432349A; CN112432349B

Abstract

Disclosed are an air supply mechanism and an air conditioner. The air supply mechanism comprises a primary air supply pipeline, a primary air supply member, a secondary air supply pipeline and a secondary air supply member; the primary air supply pipeline is provided with an air supply channel and a secondary air supply port in communication with the air supply channel; the primary air supply member is arranged corresponding to the primary air supply pipeline, and rotates in a first direction so as to drive a primary airflow to rotate in the first direction and be discharged through the air supply channel; one end of the secondary air supply pipeline is in communication with the secondary air supply port of the primary air supply pipeline; the secondary air supply member is arranged corresponding to the secondary air supply pipeline, and the secondary air supply member drives a secondary airflow to pass through the secondary air supply pipeline, then to be discharged from the secondary air supply port and form a mixed airflow with the primary airflow; and the curl of the mixed airflow is less than or greater than that of the primary airflow. By means of the mode described above, the air supply range of the air supply mechanism can be regulated.

Description

Air supply and air conditioning

【Technical field】

The invention relates to the field of household appliances, in particular to an air supply mechanism and an air conditioner.

【Background technique】

At present, in the field of air supply equipment such as air conditioners, the air conditioner generates hot air by heating the air or cooling the air to generate cold air and then supplies air through the air outlet. However, under the inherent structure and rotation speed, the air supply range of the air outlet is limited. Usually fixed.

[Content of the invention]

The present invention provides an air supply mechanism and an air conditioner to solve the problem that the air supply range is fixed in the prior art.

In order to solve the above technical problem, a technical solution adopted by the present invention is to provide an air supply mechanism, the air supply mechanism includes: a main air supply duct, formed with an air supply channel, and a secondary air supply connected to the air supply channel an air outlet; a main air supply member, which is arranged corresponding to the main air supply duct, and the main air supply member rotates in a first direction to drive the main air flow to rotate in the first direction to be discharged through the air supply channel; the secondary air supply duct, One end is connected to the secondary air supply port of the main air supply duct; the secondary air supply element is arranged corresponding to the secondary air supply duct, and the secondary air supply element drives the secondary air flow through the secondary air supply duct and then is discharged through the secondary air supply port A mixed air flow is formed with the main air flow; wherein, the curl of the mixed air flow is smaller than or greater than that of the main air flow.

According to an embodiment provided by the present invention, the secondary air supply direction of the secondary air supply port and the rotation direction of the main airflow at the secondary air supply port are greater than or equal to 0 degrees and less than 90 degrees; or the secondary air supply direction of the secondary air supply port The direction and the rotation direction of the main airflow at the secondary air outlet are greater than 90 degrees and less than or equal to 180 degrees.

According to an embodiment provided by the present invention, the number of the secondary air supply pipes is multiple, the secondary air supply ports are provided with a plurality of the secondary air supply pipes corresponding to the secondary air supply pipes, and a part of the secondary air supply ports in the plurality of secondary air supply ports are provided. The wind direction is the same as the rotation direction of the main air flow at the secondary air supply port, and the secondary air supply direction of the other part is opposite to the rotation direction of the main air flow at the secondary air supply port.

According to an embodiment provided by the present invention, a plurality of the secondary air supply ports are arranged symmetrically with respect to the rotation center of the main airflow.

According to an embodiment provided by the present invention, a plurality of the secondary air supply ports are arranged at intervals along the axial direction and/or the circumferential direction of the air supply channel.

According to an embodiment provided by the present invention, the air supply mechanism further includes a main duct that communicates with the plurality of secondary air supply ducts, and the secondary air supply member is disposed on the main duct.

According to an embodiment provided by the present invention, each of the secondary air supply pipes is provided with a valve.

According to an embodiment provided by the present invention, the secondary air supply member is a drive motor with adjustable power.

According to an embodiment provided by the present invention, the secondary air supply port is disposed on the inner wall surface of the main air supply duct.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide an air conditioner, wherein the air conditioner includes the air supply mechanism described in any one of the above.

Beneficial effects: Different from the prior art, the present invention provides an air supply mechanism and an air conditioner. By setting a secondary air supply port connected to the air supply channel on the main air supply duct, and setting a secondary air supply duct connected to the secondary air supply port With the secondary air supply element arranged on the secondary air supply duct, the secondary air flow is driven by the secondary air supply element to pass through the secondary air supply duct and the secondary air supply port and then mix with the main air flow to form a mixed air flow. The curl of the air flow may be smaller than that of the main air flow, so that the air supply range of the entire air supply mechanism can be increased or the air supply range of the entire air supply mechanism can be reduced. And further, since the secondary air flow is further provided through the secondary air supply duct and the secondary air supply port, the air volume of the mixed air flow can be increased, so as to increase the air supply range of the air supply mechanism or reduce the air supply range of the entire air supply mechanism. At the same time, it will not reduce or even increase a certain amount of air supply.

【Description of drawings】

1 is a schematic structural diagram of an embodiment of an air supply mechanism provided by the present invention;

Fig. 2 is a structural schematic diagram of another angle of the air supply mechanism shown in Fig. 1;

Figure 3 is a schematic diagram of the matching structure of the main air supply duct and the main air supply member in the air supply mechanism shown in Figure 1;

4 is a schematic diagram of the main airflow flow of the matching structure of the main air supply duct and the main air supply member in the air supply mechanism shown in FIG. 3;

Fig. 5 is a schematic diagram of the matching structure of the secondary air supply duct and the secondary air supply member in the air supply mechanism shown in Fig. 1;

FIG. 6 is a schematic diagram of the airflow when the air supply mechanism shown in FIG. 1 increases the air supply range;

FIG. 7 is a schematic diagram of the airflow when the air supply mechanism shown in FIG. 1 reduces the air supply range;

FIG. 8 is a schematic structural diagram of an embodiment of an air conditioner provided by the present invention.

【Detailed ways】

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 efforts shall fall within the protection scope of the present invention.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for the purpose of description, and should not be construed as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the protection scope of the present invention.

As shown in FIG. 1 , the present invention provides an air supply mechanism 10 . The air supply mechanism 10 includes a main air supply duct 100 , a main air supply member 200 , a secondary air supply duct 300 and a secondary air supply member 400 .

As shown in FIG. 1 , the main air supply duct 100 is formed with an air supply channel 110 and a secondary air supply port 120 communicating with the air supply channel 110 . That is, the main air supply duct 100 is formed with an air supply channel 110 , and the main air supply duct 100 further includes a secondary air supply port 120 located on the main air supply duct 100 and communicated with the air supply channel 110 . Optionally, the air supply channel 110 further includes a main air outlet 130 located at one end of the main air supply duct 100 . Optionally, the secondary air supply port 120 may be located on the inner wall surface 111 of the main air supply duct 100 , or may be disposed protruding from the inner wall surface 111 , which is not limited here.

As shown in FIGS. 3 and 4 , the main air supply member 200 is disposed corresponding to the main air supply duct 100 , and the main air supply member 200 can rotate in the first direction, so as to drive the main airflow to rotate in the first direction to pass through the air supply. Channel 110 drains.

Optionally, the main air supply member 200 may specifically be a rotary impeller disposed at one end of the air supply channel 110 away from the main air outlet 130. When the main air supply member 200 rotates around the first direction, it will drive the main airflow along the second direction. It rotates in one direction and is discharged through the air supply passage 110 .

In a specific embodiment, the secondary air supply port 120 is located between the main air supply member 200 and the main air outlet 130 .

As shown in FIG. 4 , the main air flow may be discharged from the air supply passage 110 in a spirally rotating path. The overall direction of the main air flow may be decomposed into a direction of rotation along the first direction and a direction toward the main air outlet 130 .

As shown in FIGS. 1 and 2 , one end of the secondary air supply duct 300 is connected to the secondary air supply port 120 of the main air supply duct 100 ;

Wherein, the secondary air supply member 400 can drive the secondary air flow to pass through the secondary air supply duct 300 and then be discharged through the secondary air supply port 120 to form a mixed air flow with the main air flow. The curl of the mixed gas flow is smaller than or greater than that of the main gas flow.

In a specific scenario, the direction of the secondary air flow discharged from the secondary air supply port 120 is related to the secondary air supply duct 300 and the secondary air supply port 120. Under the joint action of the air flow 120 , it is discharged, and can be mixed with the main air flow to form a mixed air flow, and the mixed air flow can also be discharged through the air supply channel 110 . That is, the mixed airflow is formed by mixing the primary airflow driven by the primary air supply member 200 and the secondary airflow discharged from the secondary air supply port 120 together.

In an alternative embodiment, the curl of the mixed gas flow is less than the curl of the main gas flow.

In another optional embodiment, the curl of the mixed gas flow is greater than the curl of the main gas flow.

In an optional embodiment, the curl of the main air flow may determine the range of the outward expansion and diffusion of the main air flow when the main air outlet 130 is discharged. That is, the curl of the main air flow can determine the air supply range of the main air flow sent by the air supply channel. As in the present application, the overall direction of the main air flow can be specifically decomposed into a direction of rotation along the first direction and a direction toward the main air outlet 130. The speed in the direction of rotation in the first direction can be expressed as curl. When the speed in the direction toward the main air outlet 130 is the same, the main air flow with relatively large curl is at When the main air outlet 130 is discharged, it can be better diffused outward, that is, the main air flow with a relatively large curl has a larger air supply range than the main air flow with a relatively small curl.

In the present application, the mixed air flow is formed by mixing the secondary air flow with the main air flow, and when the curl of the mixed air flow is smaller than the main air flow, the diffusivity of the mixed air flow when it is discharged from the main air outlet 130 will be relatively reduced, so that the entire air supply mechanism can be reduced. 10 air supply range. And when the curl of the mixed air flow is greater than the main air flow, the diffusivity of the mixed air flow when it is discharged from the main air outlet 130 will be relatively increased, thereby increasing the air supply range of the entire air supply mechanism 10 .

In the above-mentioned embodiment, the main air supply duct 100 is provided with a secondary air supply port 120 that communicates with the air supply channel 110, and a secondary air supply duct 300 communicated with the secondary air supply port 120 is provided. The secondary air supply member 400 drives the secondary airflow through the secondary air supply duct 300 and the secondary air supply port 120 to mix with the primary airflow to form a mixed airflow, because the curl of the mixed airflow can be greater than that of the primary airflow or It is smaller than the curl of the main airflow, so that the air supply range of the entire air supply mechanism 10 can be increased or the air supply range of the entire air supply mechanism 10 can be reduced. And further, since the secondary air flow is further provided through the secondary air supply duct 300 and the secondary air supply port 120, the air volume of the mixed air flow can be increased, so as to increase the air supply range of the air supply mechanism 10 or reduce the entire air supply mechanism 10. At the same time, it will not reduce or even increase a certain amount of air supply.

In an optional embodiment, the secondary air supply direction of the secondary air supply port 120 and the rotation direction of the main air flow at the secondary air supply port 120 are greater than or equal to 0 degrees and less than 90 degrees, and may specifically be 0 degrees, 60 degrees, or 89 degrees, etc. . Wherein, the rotation direction of the main air flow in this embodiment is the tangential direction at the secondary air supply port 120 when the main air flow rotates in the first direction. Since the secondary air supply direction of the secondary air supply port 120 and the tangential direction are greater than or equal to 0 degrees and less than 90 degrees, that is, the secondary air supply direction of the secondary air supply port 120 and the direction of the main air flow are mutually reinforcing, the secondary air flow through the secondary air supply. The air supply port 120 has an enhanced effect on the curl of the main air flow, that is, the curl of the mixed air flow of the secondary air flow through the secondary air supply port 120 and the main air flow will be greater than that of the main air flow.

For example, in a specific scenario, the secondary air supply direction of the secondary air supply port 120 and the rotation direction of the main air flow at the secondary air supply port 120 are 0 degrees, that is, the secondary air supply direction of the secondary air supply port 120 and the tangential direction of the main air flow at the secondary air supply port 120 Similarly, after the secondary air flow comes out of the secondary air supply port 120 , an air flow in the same direction as the rotation direction of the main air flow will be formed under the guiding action of the inner wall surface 111 of the main air supply duct 100 .

In another optional embodiment, the secondary air supply direction of the secondary air supply port 120 and the rotation direction of the main airflow at the secondary air supply port 120 are greater than 90 degrees and less than or equal to 180 degrees, specifically 91 degrees, 100 degrees or 180 degrees. Among them, since the secondary air supply direction of the secondary air supply port 120 and the tangential direction are greater than 90 degrees and less than or equal to 180 degrees, that is, the secondary air supply direction of the secondary air supply port 120 and the direction of the main air flow are mutually attenuated, then the secondary air flow is at After passing through the secondary air supply port 120 , the curl of the main air flow is reduced, that is, the curl of the mixed air flow of the secondary air flow through the secondary air supply port 120 and the main air flow will be smaller than that of the main air flow.

In other embodiments, the secondary air supply direction of the secondary air supply port 120 can also be decomposed into a second direction toward the main air outlet 130 and a third direction perpendicular to the second direction, the third direction and the main air flow along the first direction is parallel to the plane of rotation in which the rotation occurs.

In an optional embodiment, the secondary air supply direction of the third direction and the rotation direction of the main airflow at the secondary air supply port 120 are greater than or equal to 0 degrees and less than 90 degrees, and the curl of the mixed airflow may also be greater than that of the primary airflow. .

Optionally, the secondary air supply direction of the secondary air supply port 120 may also be the same as the overall direction of the main airflow. That is, the overall direction of the primary air flow is the direction of spiral rotation, and the secondary air supply direction of the secondary air supply port 120 can also be in a similar spiral rotation direction, so that the mixed air flow of the secondary air flow and the main air flow discharged from the secondary air supply port 120 The curl is greater than that of the main airflow.

In another optional embodiment, the secondary air supply direction of the third direction and the rotation direction of the main air flow at the secondary air supply port 120 are greater than 90 degrees and less than or equal to 180 degrees, and the curl of the mixed air flow may be smaller than the main air flow. Curl.

As shown in FIG. 5 , there are multiple secondary air supply ducts 300 , and multiple secondary air supply ports 120 are also provided corresponding to the secondary air supply ducts 300 . In an optional embodiment, the secondary air supply port 120 may correspond to one secondary air supply. The duct 300 may also correspond to multiple secondary air supply ducts 300, or one secondary air supply duct 300 may correspond to multiple secondary air supply ports 120, which are not limited here.

Wherein, the secondary air supply direction of a part of the secondary air supply openings 120 is the same as the rotation direction of the main air flow at the secondary air supply opening 120 , and the secondary air supply direction of the other part of the secondary air supply openings 120 is the same as the main air supply direction at the secondary air supply opening 120 . The direction of rotation of the airflow is opposite.

In a specific embodiment, the curl of the mixed airflow formed by mixing the secondary air flow sent out from a part of the secondary air supply openings 120 and the main air flow is greater than the curl of the main air flow.

In other embodiments, the curl of the mixed airflow formed by mixing the secondary air flow sent from another part of the secondary air supply openings 120 and the main air flow is smaller than the curl of the main air flow.

In a specific scenario, there may be two secondary air supply ports 120 , and the curl of the mixed airflow formed by mixing the secondary airflow provided by one with the primary airflow is greater than that of the primary airflow. The curl of the mixed airflow formed by mixing the other provided secondary airflow with the primary airflow is smaller than that of the primary airflow.

In other embodiments, the number of secondary air supply ports 120 may also be multiple, which is not limited here.

In an optional embodiment, the plurality of secondary air supply ports 120 are arranged symmetrically with respect to the rotation center of the main air flow.

In other embodiments, a plurality of secondary air supply ports 120 are arranged at intervals along the axial and/or circumferential directions of the air supply channel 110 . For example, at the same axial position, a plurality of secondary air supply ports 120 may be arranged at intervals along the circumferential direction. Or at the same circumferential position, a plurality of secondary air supply ports 120 may be arranged at intervals along the axial direction, which are not limited here.

As shown in FIG. 2 , the air supply mechanism 10 further includes a main duct 500 , and the main duct 500 can communicate with a plurality of secondary air supply ducts 300 . Wherein, the secondary air supply member 400 may be disposed on the main duct 500 .

Optionally, by providing the main duct 500 and disposing the secondary air supply member 400 on the main duct 500, one secondary air supply member 400 can provide secondary airflow to all the secondary air supply ducts 300, so as to reduce costs.

As shown in FIG. 2 , a valve 310 is provided on each air supply duct 300 .

Optionally, by setting the valve 310, and by controlling the on-off of the valve 310, it is possible to effectively control whether to provide the primary airflow with a secondary airflow that increases the curl or provides the primary airflow with a secondary airflow that reduces the curl, thereby controlling the feeding. Whether the wind mechanism 10 increases the air supply range or reduces the air supply range. Furthermore, it is also possible to control the number of the secondary air supply ports 120 that provide the secondary airflow, so as to control the increase or decrease of the air supply range.

In a specific embodiment, the secondary air supply member 400 can be an adjustable drive motor, so that by adjusting the power of the drive motor, the speed and air volume of the secondary airflow when discharged from the secondary air supply port 120 can be adjusted, so that the valve 310 can be independently or cooperated with Control the increase or decrease of the air supply range.

In a specific scenario, as shown in FIG. 6 , the secondary air supply member 400 is an air pump with adjustable power, when the valve 310 of the secondary air supply duct 300 corresponding to the secondary air flow with increased curl is provided to the main air flow, and the valve 310 is in the channel state and supplies When the valve 310 of the secondary air supply duct 300 corresponding to the secondary air flow that reduces the curl is provided by the primary air flow, when the valve 310 of the secondary air supply duct 300 is closed, increasing the power of the air pump can effectively increase the speed and air volume of the secondary air flow, thereby effectively increasing the curl of the mixed gas. Furthermore, the extent by which the air blowing range of the air blowing mechanism 10 is increased is increased. On the contrary, reducing the power of the air pump will reduce the speed and air volume of the secondary air flow, thereby reducing the curl of the mixed gas, thereby reducing the increase in the air supply range of the air supply mechanism 10 .

In another specific scenario, as shown in FIG. 7 , when the valve 310 of the secondary air supply duct 300 corresponding to the secondary airflow with increased curl is provided to the primary airflow, and the valve 310 of the secondary airflow corresponding to the primary airflow provided with reduced curl is in a closed state When the valve 310 of the secondary air supply duct 300 is in the channel state, increasing the power of the air pump can effectively increase the speed and air volume of the secondary air flow, thereby effectively reducing the curl of the mixed gas, thereby increasing the air supply of the air supply mechanism 10. The magnitude of the range reduction. On the contrary, reducing the power of the air pump will reduce the speed and air volume of the secondary air flow, thereby increasing the curl of the mixed gas, thereby reducing the reduction of the air supply range of the air supply mechanism 10 .

The working process of the above structure is described as follows:

When the main air supply member 200 works, the main air flow will be sent out from the main air outlet 130 through the air supply channel 110 . The secondary air supply member 400 works so that the main duct 500 provides secondary air flow to multiple secondary air supply members 400. In the first scenario, the valve 310 of the secondary air supply duct 300 corresponding to the secondary air flow with increased curl is provided to the primary air flow. When the valve 310 of the secondary air supply duct 300 corresponding to the secondary airflow that provides the primary airflow with reduced curl is in the passage state and the valve 310 is in the closed state, the secondary airflow passes through the secondary airflow that provides the primary airflow with increased curl. Corresponding to the secondary airflow duct 300 After being discharged from the secondary air supply port 120, it forms a mixed air flow with the main air flow, and when the mixed air flow continues to pass through the air supply channel 110 and is sent out from the main air outlet 130, the curl of the mixed air flow is larger than that of the original main air flow, so the entire The blowing range of the blowing mechanism 10 is increased. In the second scenario, the valve 310 of the secondary air supply duct 300 corresponding to the secondary airflow that provides the primary airflow with increased curl is closed, and the valve of the secondary airflow duct 300 corresponding to the secondary airflow that provides the primary airflow with reduced curl When 310 is in the channel state, the secondary airflow is discharged through the secondary air supply duct 300 and the secondary air supply port 120 corresponding to the secondary airflow that provides the primary airflow with reduced curl, and then forms a mixed airflow with the primary airflow, and the mixed airflow continues to pass through the air supply channel 110. When it is sent out from the main air outlet 130, since the curl of the mixed air flow is smaller than that of the original main air flow, the air supply range of the entire air supply mechanism 10 is reduced.

As shown in FIG. 8 , the present application further provides an air conditioner 1 , and the air conditioner 1 includes the air supply mechanism 10 in any of the above embodiments.

In a specific embodiment, the air conditioner 1 may further include a cooling mechanism (not shown) and/or a heating mechanism (not shown), and the cooling mechanism is used to provide cold airflow to the air supply mechanism 10 and pass the air supply mechanism 10 The main air outlet 130 sends out. The heating mechanism is used for providing hot air to the air blowing mechanism 10 and sending it out through the main air outlet 130 of the air blowing mechanism 10 .

To sum up, in the air supply mechanism and the air conditioner provided by the present invention, the main air supply duct 100 is provided with the secondary air supply port 120 communicating with the air supply channel 110, and the secondary air supply duct 300 connected with the secondary air supply port 120 is provided With the secondary air supply member 400 disposed on the secondary air supply duct 300, the secondary air flow is driven by the secondary air supply member 400 to pass through the secondary air supply duct 300 and the secondary air supply port 120 and then mixed with the main airflow to form a mixed airflow. The curl may be greater than or less than that of the main air flow, so that the air supply range of the entire air supply mechanism 10 can be increased or the air supply range of the entire air supply mechanism 10 can be reduced. And further, since the secondary air flow is further provided through the secondary air supply duct 300 and the secondary air supply port 120, the air volume of the mixed air flow can be increased, so as to increase the air supply range of the air supply mechanism 10 or reduce the entire air supply mechanism 10. At the same time, it will not reduce or even increase a certain amount of air supply. And further by setting the valve 310, and by controlling the on-off of the valve 310, it is possible to effectively control whether to provide the primary airflow with a secondary airflow that increases the curl or to provide the primary airflow with a secondary airflow that reduces the curl, thereby controlling the air supply mechanism. 10 Whether to increase the air supply range or reduce the air supply range. Furthermore, it is also possible to control the number of the secondary air supply ports 120 that provide the secondary airflow, so as to control the increase or decrease of the air supply range. Furthermore, the secondary air supply member 400 is set as an adjustable drive motor, so that by adjusting the power of the drive motor, the speed and air volume of the secondary airflow when discharged from the secondary air supply port 120 can be adjusted, so that the air supply can be controlled independently or in conjunction with the valve 310. increase or decrease the range, etc.

The above are only the embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent results or equivalent process transformations made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, All are similarly included in the scope of patent protection of the present invention.

Claims

An air supply mechanism (10), characterized in that the air supply mechanism (10) comprises:

a main air supply duct (100), formed with an air supply channel (110), and a secondary air supply port (120) communicating with the air supply channel (110);

A main air supply member (200) is provided corresponding to the main air supply duct (100), and the main air supply member (200) rotates in a first direction to drive the main air flow to rotate through the air supply channel in a first direction (110) discharge;

a secondary air supply duct (300), one end of which is connected to the secondary air supply port (120) of the main air supply duct (100);

A secondary air supply member (400) is provided corresponding to the secondary air supply duct (300), and the secondary air supply member (400) drives the secondary air flow through the secondary air supply duct (300) and then passes through the secondary air supply port (120) The discharge forms a mixed airflow with the main airflow;

Wherein, the curl of the mixed airflow is smaller than the curl of the main airflow or greater than the curl of the main airflow.
The air supply mechanism (10) according to claim 1, wherein the secondary air supply direction of the secondary air supply port (120) and the rotation direction of the main airflow at the secondary air supply port (120) are greater than or equal to 0 degrees and less than 90 degrees; or

The secondary air supply direction of the secondary air supply port (120) and the rotation direction of the main airflow at the secondary air supply port (120) are greater than 90 degrees and less than or equal to 180 degrees.
The air supply mechanism (10) according to claim 1, wherein the number of the secondary air supply ducts (300) is plural, and the secondary air supply ports (120) correspond to the secondary air supply ducts (300). ) is provided with a plurality of secondary air supply ports (120), and the secondary air supply direction of a part of the plurality of secondary air supply ports (120) is the same as the rotation direction of the main airflow at the secondary air supply port (120), and the secondary air supply direction of the other part is the same as the secondary air supply port (120). 120), the direction of rotation of the main air flow is opposite.
The air supply mechanism (10) according to claim 3, wherein a plurality of the secondary air supply ports (120) are arranged symmetrically with respect to the rotation center of the main air flow.
The air supply mechanism (10) according to claim 3, wherein a plurality of the secondary air supply ports (120) are arranged at intervals along the axial direction and/or the circumferential direction of the air supply channel (110).
The air supply mechanism (10) according to claim 3, characterized in that, the air supply mechanism (10) further comprises a main duct (500) communicating with the plurality of secondary air supply ducts (300), and the secondary air supply ducts (300) The air supply member (400) is arranged on the main duct (500).
The air supply mechanism (10) according to claim 6, wherein a valve (310) is provided on each of the secondary air supply pipes (300).
The air supply mechanism (10) according to claim 1, wherein the secondary air supply member (400) is a drive motor with adjustable power.
The air supply mechanism (10) according to claim 1, wherein the secondary air supply port (120) is provided on the inner wall surface (111) of the main air supply duct (100).
An air conditioner (1), characterized in that, the air conditioner (1) comprises the air supply mechanism (10) according to any one of claims 1-9.