WO2021139624A1

WO2021139624A1 - Air conditioner indoor unit

Info

Publication number: WO2021139624A1
Application number: PCT/CN2021/070141
Authority: WO
Inventors: 张立智; 李绪超; 郝红波
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: 2020-01-08
Filing date: 2021-01-04
Publication date: 2021-07-15
Also published as: CN111207445B; CN111207445A

Abstract

Provided is an air conditioner indoor unit, comprising: a swing blade apparatus; the swing blade apparatus has a first set of swing blades (31) and a second set of swing blades (32) mounted at an air outlet, a first swing-blade linkage structure which causes the first set of swing blades (31) to be linked, and a second swing-blade linkage structure which causes the second set of swing blades (32) to be linked; the first set of swing blades (31) and the second set of swing blades (32) are sequentially arranged along the length direction of the air outlet; a fan apparatus, mounted in a cover (20), the fan apparatus having a first fan (51) arranged inside the first set of swing blades (31) and a second fan (52) arranged inside the second set of swing blades (32); and a swing blade drive apparatus (10), the swing blade drive apparatus (10) comprising a first one-way meshing wheel (11), a second one-way meshing wheel (12), and a drive assembly. Thus one half of the swing blades of the air conditioner indoor unit do not move, and the other half of the swing blades swing to adjust the direction of air supply, i.e. implementing a single-motor clutch-type control of the left and right swing blades, providing a comfortable air supply. Having two fans, one of the fans can be turned on as needed, or two fans can be turned on at the same time, thus achieving diversified air supply and energy conservation.

Description

Air conditioner indoor unit

Technical field

The present invention relates to the technical field of air conditioning, in particular to an indoor unit of an air conditioner.

Background technique

With the development of social economy and the improvement of people's living standards, air conditioners have also become indispensable household appliances in people's daily lives. The air outlet of the existing air conditioner is usually provided with a swing blade for adjusting the flow of the airflow. Air conditioners usually have two designs for swing leaves: manual swing and automatic swing. The manual pendulum is designed as a left and right pendulum. Through manual control, the advantage is that it can automatically control the left and right swing angle and expand the air supply range. However, manual operation is required and the operation is inconvenient. If the air conditioner is installed at a higher position, it cannot be operated. Automatic swing, the connecting rod swing blade is designed, and the connecting rod is controlled by the motor to make the swing blade swing at a uniform angle. Its advantage is that the swing blade can swing all the time to form a flowing wind. However, the swing blade can swing at the same time, which cannot meet the diversified air supply. demand.

Summary of the invention

In view of the above-mentioned problems, an invention is proposed to provide an indoor unit of an air conditioner that overcomes the above-mentioned problems or at least partially solves the above-mentioned problems, so as to meet diversified air supply requirements.

Specifically, the present invention provides an indoor unit of an air conditioner, which includes a cover, the cover has an air outlet, and further includes:

A swing leaf device having a first group of swing leaves and a second group of swing leaves installed at the air outlet, a first swing leaf linkage structure for linking the first group of swing leaves, and a The second group of swing blades linkage structure; the first group of swing blades and the second group of swing blades are arranged in sequence along the length direction of the air outlet;

A fan device installed in the casing, and the fan device has a first fan arranged inside the first set of pendulum blades, and a second fan set inside the second set of pendulum blades; and

A swing blade drive device, which includes a first one-way meshing wheel, a second one-way meshing wheel, and a drive assembly; and

The first one-way meshing wheel is rotatably mounted on the casing about its axis, and the first one-way meshing wheel is provided with a plurality of first meshing grooves evenly distributed along its circumferential direction; the second one-way meshing wheel It is rotatably mounted on the casing about its axis, the second one-way meshing wheel is provided with a plurality of second meshing grooves evenly distributed along its circumferential direction; the drive assembly includes a connecting rod, a plurality of A first link arm arranged in parallel in the longitudinal direction of the link and a plurality of second link arms arranged in parallel in the longitudinal direction of the link; the first swing vane linkage structure is rotatably installed in the The first one-way meshing wheel, the second swing blade linkage structure is rotatably mounted on the second one-way meshing wheel;

The starting end of each first link arm is set on the link, and when the link moves in a first direction, the ends of a plurality of the first link arms sequentially enter the first one-way The first meshing groove of the meshing wheel drives the first one-way meshing wheel to rotate in a second direction, so as to drive the first group of swing blades to swing through the first swing blade linkage structure; the first direction is parallel to The length direction of the air outlet;

The start end of each second link arm is set on the link, and when the link moves in a third direction opposite to the first direction, the ends of a plurality of the second link arms Enter the second meshing groove of the second one-way meshing wheel in sequence, and drive the second one-way meshing wheel to rotate in a fourth direction opposite to the second direction, so as to be driven by the second swing vane linkage structure The second group of swing leaves swings.

Optionally, the first one-way meshing wheel and the second one-way meshing wheel are arranged between the first group of swing blades and the second group of swing blades.

Optionally, the air conditioner indoor unit further includes a human-sensing device installed in the cover, so that the pendulum blade driving device controls the rotation of the first one-way meshing wheel or the rotation of the first one-way meshing wheel according to the human-sensing device The second one-way meshing wheel rotates, and the indoor unit of the air conditioner controls the first fan and/or the second fan according to the human sensing device.

Optionally, the first fan and the second fan are both cross-flow fans, and the wind wheel of each cross-flow fan extends along the length direction of the air outlet.

Optionally, the first one-way meshing wheel and the second one-way meshing wheel are coaxially arranged.

Optionally, the direction of the opening of the first engaging groove is opposite to the direction of the opening of the second engaging groove;

The first link arm and the second link arm are arranged on the same side of the link, and are arranged in sequence along the width direction of the link.

Optionally, the first link arm is arranged obliquely with respect to the link, and the end of the first link arm faces one end of the link; the first direction is directed from the other end of the link One end of the connecting rod;

The second link arm is arranged obliquely with respect to the link, and the end of the second link arm faces the other end of the link.

Optionally, an interval gear is provided between the first one-way meshing wheel and the second one-way meshing wheel;

The connecting rod is provided with a rack gear meshing with the spacing gear.

Optionally, both ends of the first link arm and the second link arm are provided with an engaging convex strip.

Optionally, the swing blade driving device further includes a motor and a transmission mechanism, and the motor drives the connecting rod to move in a first direction or a third direction through the transmission mechanism.

In the indoor unit of the air conditioner of the present invention, since there are two one-way meshing wheels and two sets of link arms, when the connecting rod moves in the first direction, the first link arm and the first one-way meshing wheel cooperate to drive the first When a one-way meshing wheel rotates, the second link arm will not enter the second meshing groove and will not drive the second one-way meshing wheel to rotate, which can realize the swing of the first group of swing blades, and the second group of swing blades basically do not move; Ground, when the connecting rod moves in a third direction opposite to the first direction, the second set of pendulum blades can be swung, and the first set of pendulum blades are basically stationary, so that diversified air supply can be realized, for example, the indoor unit of an air conditioner Half of the pendulum leaves do not move, and the other half of the pendulum leaves swing to adjust the air supply direction, that is, the single-motor clutch type control left and right pendulum leaves is realized for comfortable air supply. There are two fans, one of which can be turned on according to demand, or two fans can be turned on at the same time, to achieve diversified air supply and energy saving. It can also achieve a larger angle of air supply, which can realize the flowing wind of the automatic swing, and also can maximize the range of the wind direction.

Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will better understand the above and other objectives, advantages and features of the present invention.

Description of the drawings

Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary but not restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention;

Fig. 2 is a schematic partial structure diagram of the indoor unit of the air conditioner shown in Fig. 1;

Fig. 3 is a schematic partial structural diagram of the indoor unit of the air conditioner shown in Fig. 1;

Fig. 4 is a schematic enlarged view at B in Fig. 3;

Fig. 5 is a schematic structural diagram of the swing blade driving device in the air conditioner indoor unit shown in Fig. 1;

Fig. 6 is a schematic partial structure diagram of the swing blade driving device shown in Fig. 5;

FIG. 7 is another schematic partial structure diagram of the swing blade driving device shown in FIG. 5;

Fig. 8 is a schematic structural diagram of a swing leaf driving device in an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 9 is a schematic enlarged view at A in FIG. 8.

Detailed ways

An embodiment of the present invention provides an indoor unit of an air conditioner. FIG. 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention, as shown in FIG. 1, and with reference to FIGS. 2-9. The indoor unit of the air conditioner includes a cover 20, a swing blade device, a fan device, and a swing blade drive device 10. The cover case 20 may include a frame, a front case mounted on the frame, etc., and the front case may have a front panel or the like. The cover 20 may have an air outlet. The swing blade device includes a first group of swing blades 31, a second group of swing blades 32, a first swing blade linkage structure, and a second swing blade linkage structure. Both the first group of swing leaves 31 and the second group of swing leaves 32 are arranged at the air outlet. The first group of swing blades 31 and the second group of swing blades 32 are sequentially arranged along the length direction of the air outlet. The first swing blade linkage structure is installed on the first group of swing blades 31 so that the first group of swing blades 31 are linked. The second swing blade linkage structure is installed on the second group of swing blades 32 to make the second group of swing blades 32 linkage. The fan device is installed in the casing 20, and the fan device has a first fan 51 arranged inside the first set of pendulum blades 31 and a second fan 52 set inside the second set of pendulum blades 32. Both the first fan 51 and the second fan 52 have their own power mechanisms to operate independently.

Among them, as shown in FIGS. 5 to 9, the swing blade driving device 10 may include a first one-way meshing wheel 11, a second one-way meshing wheel 12 and a driving assembly. The first one-way meshing wheel 11 is rotatably mounted on the casing 20 about its axis, and the first one-way meshing wheel 11 is provided with a plurality of first meshing grooves uniformly distributed along the circumferential direction thereof. The second one-way meshing wheel 12 is rotatably mounted on the casing 20 about its axis, and the second one-way meshing wheel 12 is provided with a plurality of second meshing grooves evenly distributed along the circumferential direction thereof. The driving assembly includes a connecting rod 13, a plurality of first connecting rod arms 14 arranged in parallel along the length direction of the connecting rod 13 and a plurality of second connecting rod arms 15 arranged in parallel along the length direction of the connecting rod 13. The first swing-blade linkage structure is rotatably installed on the first one-way meshing wheel 11, and the second swing-blade linkage structure is rotatably mounted on the second one-way meshing wheel 12.

The starting end of each first link arm 14 is set at the link 13, and when the link 13 moves in the first direction, the ends of the plurality of first link arms 14 sequentially enter the first one-way meshing wheel 11 The meshing groove drives the first one-way meshing wheel 11 to rotate in the second direction to drive the first group of pendulum blades of the indoor unit of the air conditioner to swing. The starting end of each second link arm 15 is set on the link 13, and when the link 13 moves in a third direction opposite to the first direction, the ends of the plurality of second link arms 15 enter the second one-way one by one. The second meshing groove of the meshing wheel 12 drives the second one-way meshing wheel 12 to rotate in a fourth direction opposite to the second direction to drive the second set of pendulum blades of the indoor unit of the air conditioner to swing. The first direction is parallel to the length direction of the air outlet.

When the indoor unit of the air conditioner of the embodiment of the present invention is in operation, the connecting rod 13 can be driven to move in a first direction. The first direction may be a direction in which one end of the connecting rod 13 points to the other end, so that the first connecting rod arm 14 and the first single Cooperating with the meshing wheel 11 drives the first one-way meshing wheel 11 to rotate, and drives the first group of swing blades to swing. And because the first one-way meshing wheel 11 and the second one-way meshing wheel 12 are both one-way meshing, that is, only one-way meshing is possible, the second link arm 15 will not enter the second meshing groove and will not drive the first one. The two one-way meshing wheels 12 rotate, and the second set of swing blades basically do not move. Similarly, when the connecting rod 13 moves in a third direction opposite to the first direction, the swing of the second group of swing blades can be realized, and the first group of swing blades basically do not move. Therefore, when the indoor unit of the air conditioner has two sets of pendulum blades, one half of the pendulum blades can be kept stationary, and the other half of the pendulum blades can be oscillated to adjust the air supply direction. Further, the indoor unit of the air conditioner also has two fans, one of which is turned on according to the demand, or both fans are turned on at the same time, so as to realize diversified air supply and energy saving. The left and right fans can be controlled independently, and the swing blades can be used to achieve longer distance air supply in the lateral direction.

In some embodiments of the present invention, the first swing blade linkage structure may include a first swing blade linkage rod 33 and a first connecting rod 17. The second swing blade linkage structure may include a second swing blade linkage rod 34 and a second connecting rod 18. The first swing blade linkage rod 33 is connected with the first connecting rod 17; the second swing blade linkage rod 34 is connected with the second connecting rod 18. The first connecting rod 17 is rotatably installed on the first one-way meshing wheel 11; the second connecting rod 18 is rotatably installed on the second one-way meshing wheel 12. In some embodiments, the first connecting rod 17 is rotatably connected with the first swing blade linkage rod 33, and the second connecting rod 18 is rotatably connected with the second swing blade linkage rod 34. In some embodiments, one end of the first connecting rod 17 connected to the first swing blade linkage rod 33 can be slidably mounted on the first swing blade linkage rod 33 along a direction perpendicular to the first swing blade linkage rod 33. One end of the second connecting rod 18 connected to the second swing blade linkage rod 34 can be slidably mounted to the second swing blade linkage rod 34 in a direction perpendicular to the second swing blade linkage rod 34. Through the first swing blade linkage rod 33, the first connecting rod 17, the second swing blade linkage rod 34, and the second connecting rod 18, the layout of the indoor unit of the air conditioner is more reasonable and the structure is compact. The first connecting rod 17 and the second connecting rod 18 may be located on both sides of the first one-way meshing wheel 11 and the second one-way meshing wheel 12. In some optional embodiments, the first swing blade linkage rod 33 is fixedly connected to the first connecting rod 17; the second swing blade linkage rod 34 is fixedly connected to the second connecting rod 18.

In some embodiments of the present invention, the first fan 51 and the second fan 52 are both cross-flow fans, and the wind wheel of each cross-flow fan extends along the length direction of the air outlet. The air outlet may include two air outlet areas, and the first group of swing blades 31 and the second group of swing blades 32 are respectively installed in the two air outlet areas. Optionally, there may be an interval structure between the two wind outlet areas.

In some embodiments of the present invention, as shown in FIGS. 5 to 9, the first one-way meshing wheel 11 and the second one-way meshing wheel 12 are arranged coaxially, so that the swing blade drive device 10 can be reasonably arranged. The opening direction of the first engaging groove is opposite to the opening direction of the second engaging groove. The first link arm 14 and the second link arm 15 are arranged on the same side of the link 13 and arranged in sequence along the width direction of the link 13, so that the swing blade drive device 10 can be reasonably arranged and compact in structure, thereby reducing the number of components Component volume, etc. In order to facilitate the engagement, the first link arm 14 is arranged obliquely with respect to the link 13, and the end of the first link arm 14 faces one end of the link 13; the first direction is from the other end of the link 13 to one end of the link 13 ; The second link arm 15 is arranged obliquely with respect to the link 13, and the end of the second link arm 15 faces the other end of the link 13. Further, the ends of the first link arm 14 and the second link arm 15 are both provided with an engaging protrusion 16.

In some alternative embodiments of the present invention, optionally, it is also possible to control the direction and other factors of the opening direction of the first engagement groove according to the arrangement position of the first one-way meshing wheel 11 and the second one-way meshing wheel 12 The opening direction of the second engagement groove and the positions of the first link arm 14 and the second link arm 15 are appropriately set. For example, the first one-way meshing wheel 11 and the second one-way meshing wheel 12 are arranged coaxially, and the opening direction of the first engaging groove is the same as that of the second engaging groove; the connecting rod 13 includes a first sub-connecting rod arranged in parallel And the second sub-link; the first one-way meshing wheel 11 and the second one-way meshing wheel 12 are disposed between the first sub-link and the second sub-link; the first link arm 14 is disposed in the first sub-link The side of the rod facing the second sub-link; the second link arm 15 is arranged on the side of the second sub-link facing the first sub-link.

In some embodiments of the present invention, the first link arm 14 and the second link arm 15 may be made of elastic material, so that when the link arm and the engaging groove do not engage and move with each other, they are elastically bent to give way. Both the first one-way meshing wheel 11 and the second one-way meshing wheel 12 can be a ratchet wheel or a structure similar to a ratchet wheel.

In some embodiments of the present invention, as shown in FIGS. 8 and 9, a spacer gear 19 is provided between the first one-way meshing wheel 11 and the second one-way meshing wheel 12; and the connecting rod 13 is provided with a spacer gear Meshing rack. The spacer gear 19 and the rack can ensure the smoothness of the transmission between the first one-way meshing wheel 11 and the first link arm 14, as well as the smoothness of the transmission between the second one-way meshing wheel 12 and the first link arm 15 Sex. The swing blade driving device 10 further includes a motor and a transmission mechanism. The motor drives the connecting rod 13 to move in the first direction or in the third direction through the transmission mechanism. The transmission mechanism can be a linkage mechanism or a rack and pinion mechanism. Optionally, in some embodiments, the spacer gear 19 may be connected to a motor, and the spacer gear 19 is driven to rotate by the motor, so that the spacer gear 19 drives the rack and the connecting rod 13 to move.

In some embodiments of the present invention, the first one-way meshing wheel 11 and the second one-way meshing wheel 12 are arranged between the first group of pendulum blades 31 and the second group of pendulum blades 32. The indoor unit of the air conditioner also includes a human-sensing device 40 installed in the casing 20 so that the pendulum drive device 10 controls the rotation of the first one-way meshing wheel 11 or the second one-way meshing wheel 12 according to the human-sensing device 40, and makes The indoor unit of the air conditioner controls the first fan 51 and/or the second fan 52 according to the human sensing device.

Further, the human-sensing device 40 may be installed outside one end of the air outlet. The sensing head of the human sensing device 40 is rotatably arranged to expand the detection range. The human-sensing device 40 detects the position of the person, and the indoor unit of the air conditioner controls the forward and reverse rotation of the motor of the pendulum drive device 10 according to the detection result of the human-sensing device 40, realizing the movement of the pendulum on one side, meeting the demand of air supply, and The position of the person controls the operation of the first fan 51 or the second fan 52, or makes the first fan 51 and the second fan 52 work at the same time. In other words, the human-sensing device 40 senses the position of the person, and realizes the function of air supply at an off-angle, away from the human body or automatic swing function, and comfortable air supply.

So far, those skilled in the art should realize that although multiple exemplary embodiments of the present invention have been illustrated and described in detail herein, they can still be disclosed according to the present invention without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications that conform to the principles of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all these other variations or modifications.

Claims

An indoor unit of an air conditioner, comprising a casing with an air outlet; and further comprising:

A swing leaf device having a first group of swing leaves and a second group of swing leaves installed at the air outlet, a first swing leaf linkage structure for linking the first group of swing leaves, and a The second group of swing blades linkage structure; the first group of swing blades and the second group of swing blades are arranged in sequence along the length direction of the air outlet;

A fan device installed in the casing, and the fan device has a first fan arranged inside the first set of pendulum blades, and a second fan set inside the second set of pendulum blades; and

A swing blade drive device, which includes a first one-way meshing wheel, a second one-way meshing wheel, and a drive assembly; and

The first one-way meshing wheel is rotatably mounted on the casing about its axis, and the first one-way meshing wheel is provided with a plurality of first meshing grooves evenly distributed along its circumferential direction; the second one-way meshing wheel It is rotatably mounted on the casing about its axis, the second one-way meshing wheel is provided with a plurality of second meshing grooves evenly distributed along its circumferential direction; the drive assembly includes a connecting rod, a plurality of A first link arm arranged in parallel in the longitudinal direction of the link and a plurality of second link arms arranged in parallel in the longitudinal direction of the link; the first swing vane linkage structure is rotatably installed in the The first one-way meshing wheel, the second swing blade linkage structure is rotatably mounted on the second one-way meshing wheel;

The starting end of each first link arm is set on the link, and when the link moves in a first direction, the ends of a plurality of the first link arms sequentially enter the first one-way The first meshing groove of the meshing wheel drives the first one-way meshing wheel to rotate in a second direction, so as to drive the first group of swing blades to swing through the first swing blade linkage structure; the first direction is parallel to The length direction of the air outlet;

The start end of each second link arm is set on the link, and when the link moves in a third direction opposite to the first direction, the ends of a plurality of the second link arms Enter the second meshing groove of the second one-way meshing wheel in sequence, and drive the second one-way meshing wheel to rotate in a fourth direction opposite to the second direction, so as to be driven by the second swing vane linkage structure The second group of swing leaves swings.
The air conditioner indoor unit according to claim 1, wherein:

The first one-way meshing wheel and the second one-way meshing wheel are arranged between the first group of swing blades and the second group of swing blades.
The air conditioner indoor unit according to claim 1, further comprising:

The human-sensing device is installed in the cover so that the air conditioner indoor unit controls the rotation of the first one-way meshing wheel or the rotation of the second one-way meshing wheel according to the human-sensing device, and according to the The human sensing device controls the first fan and/or the second fan.
The air conditioner indoor unit according to claim 1, wherein:

The first fan and the second fan are both cross-flow fans, and the wind wheel of each cross-flow fan extends along the length direction of the air outlet.
The air conditioner indoor unit according to claim 1, wherein:

The first one-way meshing wheel and the second one-way meshing wheel are coaxially arranged.
The air conditioner indoor unit according to claim 5, wherein:

The opening direction of the first engaging groove is opposite to the opening direction of the second engaging groove;

The first link arm and the second link arm are arranged on the same side of the link, and are arranged in sequence along the width direction of the link.
The air conditioner indoor unit according to claim 6, wherein:

The first link arm is arranged obliquely with respect to the link, and the end of the first link arm faces one end of the link; the first direction is directed from the other end of the link to the One end of the connecting rod;

The second link arm is arranged obliquely with respect to the link, and the end of the second link arm faces the other end of the link.
The air conditioner indoor unit according to claim 5, wherein:

Spaced gears are arranged between the first one-way meshing wheel and the second one-way meshing wheel;

The connecting rod is provided with a rack gear meshing with the spacing gear.
The air conditioner indoor unit according to claim 1, wherein:

Both ends of the first link arm and the second link arm are provided with an engaging convex strip.
The air conditioner indoor unit according to claim 1, wherein:

The swing blade driving device further includes a motor and a transmission mechanism. The motor drives the connecting rod to move in a first direction or a third direction through the transmission mechanism.