CN1217144C - Air conditioner - Google Patents

Abstract

An air conditioner is provided to prevent the ununiformity in the gap between a rim of an opening/closing element and a suction hole when the suction hole is closed by the opening/closing element, wherein the movement of the opening/closing element becomes stable. An air conditioner includes a main body provided with suction holes(11) at a side, and a rotation shaft(32) rotating by a driving motor(31) which generates rotation power. A plurality of guide elements(34U,34L) are disposed with a predetermined interval and receives the rotation power from the rotation shaft to move back and forth. An opening/closing element(20) is mounted at a side of the guide elements to move back and forth in association with the guide elements, thereby opening/closing the suction holes.

Description

air conditioner

technical field

The present invention generally relates to an air conditioner, and more particularly, to an air conditioner designed to stably move a cover for opening or closing an air inlet.

Background technique

As is well known to those skilled in the art, an air conditioner is a device that uses a refrigeration cycle to control air. The air conditioner includes an outdoor unit installed outdoors and an indoor unit installed indoors.

Wherein the outdoor unit includes a compressor, a condenser and a first fan, which together form a refrigeration circuit. During the cooling operation, the fan is used to suck the outside air and the condenser is used to condense the air. The indoor unit includes an evaporator, a second fan and other components that form a refrigeration circuit together with the components of the outdoor unit. When performing cooling work, the blowing force of the second fan makes the indoor air pass through the evaporator, and the evaporator performs heat exchange treatment. The treated air is then exhausted into the room, cooling the room air.

At present, Korean Patent NO 166706 proposes a kind of air conditioner with cover. The design of the air conditioner is that there is an air inlet in front of the casing, and the cover is installed on the casing so that the air inlet is opened or closed when the cover moves forward or backward, thereby improving the appearance of the casing.

As shown in FIG. 1 , an indoor unit of a conventional air conditioner includes a cover 3 and a cover driving unit. Wherein the cover 3 is installed on the casing 1 , and the cover moves forward or backward relative to the casing 1 so as to open or close the air inlet 2 arranged in front of the casing 1 . The cover driving unit moves the cover 3 forward or backward, thereby opening or closing the air inlet 2 .

A conventional drive unit includes a plurality of guide protrusions 4, a first electromagnet 6a, and a second electromagnet 6b. In order to guide the movement of the cover 3, the guide protrusions 4 protrude rearward from the cover 3, and are inserted into corresponding guide holes 5 formed on the cabinet. The first electromagnet 6a is installed on the cover 3, and the second electromagnet 6b is installed on the casing 1 at a position corresponding to the first electromagnet 6a. The first electromagnet 6a and the second electromagnet 6b generate an electromagnetic force to move the cover 3 forward or backward. The indoor unit of a conventional air conditioner also has a rack 7 and a pinion 8, so that the cover 3 can be opened or closed gradually and smoothly.

The working mode of opening or closing the air inlet 2 of this indoor unit will be described below. When the cover 3 moves forward or backward under the action of the repulsive or attractive force generated between the first electromagnet 6a and the second electromagnet 6b, the guide protrusion 4 and the guide hole 5 guide the movement of the cover 3, Thereby the air inlet 2 is opened or closed.

In the indoor unit of the conventional air conditioner, when the guide protrusion 4 provided on the driving unit is inserted into the guide hole 5 , friction is generated between the guide protrusion 4 and the guide hole 5 . However, the friction generated between the upper guide protrusion 4 and the guide hole 5 is different from the friction generated between the lower guide protrusion 4 and the guide hole 5 . Therefore, the movement distance of the upper guide protrusion 4 is different from the movement distance of the lower guide protrusion 4 due to the difference in frictional force. Therefore, the interval between the edge of the cover 3 and the air inlet 2 is inconsistent, thus making the indoor unit look unattractive.

In addition, the cover member 3 rocks back and forth due to the difference in moving distance between the upper and lower guide protrusions 4, thereby deteriorating the operational reliability of the air conditioner.

Contents of the invention

Therefore, one aspect of the present invention provides an air conditioner that makes the distance between the edge of the cover and the air inlet consistent when the cover opens or closes the air inlet.

Another aspect of the present invention provides an air conditioner that smoothly moves a cover member forward or backward.

Additional aspects and advantages of the invention will be set forth in part from the description which follows, and in part will be obvious from the description, or in part will be learned by practice of the invention.

The above and other aspects of the present invention are achieved by proposing an air conditioner comprising a cabinet defining the appearance of the air conditioner, wherein an air inlet is provided at a predetermined position of the cabinet for sucking air into the cabinet a rotating shaft rotated by a rotating force generated by the operation of a driving motor; a plurality of guides which are spaced from each other at a predetermined interval and moved back and forth by a rotating force transmitted from the rotating shaft; and supported on the first end of the guide The cover part moves forward or backward together with the guide part, so as to open or close the air inlet.

The guides are composed of upper and lower guides disposed parallel to each other at upper and lower positions.

A predetermined portion of each guide is provided with a rack, so that the rotational force from the shaft is transmitted to the guide; in addition, a pinion is provided at each end of the shaft, so that the rotational force is transmitted to each guide. Racks on leads.

The drive motor consists of a stepper motor designed to precisely control its rotational speed.

In addition, a plurality of through holes are provided on the casing for the guide pieces to pass through the casing; guide ribs extend backward from the edge of each through hole so as to support and guide each guide piece.

Also, a stop is provided at the second end of each guide, and the stop is blocked by the associated guide rib, thereby limiting the range of movement of the cover.

Description of drawings

These and other aspects and advantages of the present invention will be described in detail below with reference to preferred embodiments and with reference to the accompanying drawings. The figure shows:

Fig. 1 is the sectional view of the indoor unit of conventional air conditioner;

Fig. 2 is the perspective view of the indoor unit of the air conditioner of the present invention;

Fig. 3 is the sectional view of the indoor unit of air conditioner of the present invention;

Fig. 4 is the perspective view of the front shell of the air conditioner indoor unit with the air inlet control unit of the present invention, and

FIG. 5 is a partially enlarged schematic diagram of the control unit in FIG. 4 .

Detailed ways

Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts.

As shown in Figures 2 and 3, the air conditioner indoor unit of the present invention includes a casing 10 that defines the appearance of the indoor unit, and inside the casing contains several components for performing a refrigeration cycle.

The case 10 includes a front case 10F and a rear case 10R. The front of the front shell 10F is provided with an air inlet 11 for sucking indoor air, and the front shell 10F is open to the rear. The rear housing 10R is mounted to the open rear portion of the front housing 10F. Air outlets 12 are provided on the top, bottom and two side walls of the rear housing 10R.

A heat exchanger 13 , a fan 14 and a fan driving motor 15 are sequentially installed in the cabinet 10 in a direction from the front to the rear of the cabinet 10 . Wherein, the heat exchanger 13 performs heat exchange treatment on the cold indoor air flowing into the casing 10 through the air inlet 11. The function of the fan 14 is to forcibly suck air and circulate the air inside the cabinet 10 . And the fan driving motor 15 makes the fan 14 rotate.

The indoor unit of the air conditioner is provided with an air inlet control unit for opening or closing the air inlet 11 in response to the operation of the air conditioner.

As shown in FIGS. 4 and 5 , the air inlet control unit includes a cover 20 and a cover driving unit 30 . The plate-shaped cover 20 covers the air inlet 11 of the front housing 10F, so that the air inlet 11 can be opened or closed. The cover driving unit 30 moves the cover 20 forward or backward, so as to open or close the air inlet 11 .

The cover driving unit 30 is provided on each side of the front housing 10F so that the cover driving unit 30 is installed on each side of the cover 20 . Each drive unit 30 includes a drive motor 31, a rotary shaft 32, two pinion gears 33U and 33L, and two guides 34U and 34L. Wherein the driving motor 31 generates rotational force. The rotating shaft 32 is rotated by the rotating force transmitted from the driving motor 31 . Two pinion gears 33U and 33L are installed at both ends of the rotating shaft 32 to rotate together with the rotating shaft 32 . Both first ends of the guides 34U and 34L are supported on the cover 20, and they move forward or backward by the rotational force transmitted from the two pinions 33U and 33L.

Drive motors 31 are mounted on both sides of the front housing 10F, and each drive motor is composed of a stepping motor whose revolutions per minute (rpm) can be precisely controlled so that the two drive motors 31 operate substantially and equally. In this case, since the two rotating shafts 32 provided on both sides of the front housing 10F must rotate in opposite directions so that both sides of the cover member 20 are equally moved in the same direction, a driving motor 31 is installed at the lower position and Another driving motor 31 is installed in the upper position.

The rotating shaft 32 is directly connected to the driving motor 31 . And two small gears 33U and 33L are installed on the upper and lower ends of the rotating shaft 32 respectively. In this case, the pinion 33U mounted on the upper end of the rotary shaft 32 is called an upper pinion 33U, and the pinion 33L mounted on the lower end of the rotary shaft 32 is called a lower pinion 33L.

According to a preferred embodiment of the present invention, each guide member 34U and 34L is shaped like a rod with a rectangular cross section, the first end of each guide member 34U and 34L is supported on the cover member 20, and each The guides 34U and 34L are each provided with a rack 34a at a predetermined portion, and the racks move the guides 34U and 34L forward or backward according to the rotation directions of the upper and lower pinions 33U and 33L, thereby realizing a cover member. 20's to move forward or backward. Among them, the guide 34U installed on the upper side is called an upper guide 34U, and the guide 34L installed on the lower side is called a lower guide 34L.

Each guide 34U and 34L passes through the front housing 10F and is supported on the cover 20 at its first end. Therefore, in order to mount the guides 34U and 34L to the front housing 10F, four through holes 16 and four guide ribs 17 are provided on the front housing 10F. The through holes 16 are formed on the upper and lower portions of both sides of the front housing 10F and adjacent to the edge of the air inlet 11 . Each guide rib 17 extends rearwardly from the edge of each through hole 16 to support and guide each guide piece 34U and 34L.

Therefore, when the rotational force generated by the driving motor 31 is transmitted to the upper pinion 33U and the lower pinion 33L via the rotating shaft 32, the pinions 33U and 33L rotate at the same rpm so that the upper and lower pinions arranged in parallel to each other are placed at the upper position and the lower position. The guide 34U and the lower guide 34L equally move forward or backward.

Each guide 34U and 34L is provided with a stopper 34b. When the cover 20 moves forward, the block 34b blocks the cover 20, so that the cover 20 moves forward within a predetermined range. Since the stopper 34b protrudes from the second end of each guide piece 34U and 34L, a flange perpendicular to each guide piece 34U and 34L is formed. When the guides 34U and 34L reach a predetermined forward position, the rear end of the associated guide rib 17 stops the stopper 34b of each guide 34U and 34L, thus limiting the forward movement of the cover. The range of movement of the cover 20.

The working mode and effect of the air conditioner of the present invention having the above-mentioned structure will be described in detail below with reference to the accompanying drawings.

When the air conditioner is powered on, it supplies power to the driving motors 31 arranged on both sides of the front housing 10F, and the driving motors 31 make the two rotating shafts 32 and the upper pinion 33U and the lower pinion arranged at the upper and lower ends of the two rotating shafts 32 33L turns. Wherein, each driving motor 31 provided on both sides of the front housing 10F is composed of a stepping motor, and the driving motors 31 are rotated at the same rotational speed, so the rotational force with the same rotational speed is transmitted to the upper pinion through the rotating shaft 32 33U and lower pinion 33L. Thus, a total of four pinion gears 33U and 33L rotate at the same rotational speed.

Since the upper pinion 33U and the lower pinion 33L mesh with the upper guide 34U and the lower guide 34L, the upper guide 34U and the lower guide 34L rotate in accordance with the rotation directions of the upper pinion 33U and the lower pinion 33L. Since it moves forward or backward, the covers fixed to the upper guide 34U and the lower guide 34L also move forward or backward.

In this case, the upper pinion 33U and the lower pinion 33L having the same gear ratio move the racks 34a of the upper guide 34U and the lower guide 34L forward or backward. Therefore, the moving distances and moving speeds of the upper guide 34U and the lower guide 34L are equal to each other, so there is no difference in movement between the upper and lower portions of the cover 20 . Therefore, the cover member 20 is moved forward or backward so as to open or close the air inlet without shaking.

Obviously, according to the above description, the present invention proposes an air conditioner, the air conditioner has a drive unit on both sides of the casing to move the cover forward or backward, and the drive unit realizes the upper and lower cover The moving distances and moving speeds of the parts are equal to each other, so that the intervals between the edge of the cover and the air inlet are made uniform, so that the appearance of the air conditioner is improved.

In addition, the air conditioner of the present invention is designed such that the moving distances and moving speeds of the upper and lower portions of the cover are equal to each other, thereby allowing the cover to move forward or backward smoothly without shaking.

Although only a few preferred embodiments of the present invention have been described and described above, it is obvious to those skilled in the art that changes can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims (6)

1, a kind of air-conditioner comprises:

Casing, described chassis defining the outward appearance of air-conditioner, and be provided with air inlet, in order to air is sucked casing in the pre-position of casing;

Rotating shaft, it rotates by the rotatory force that drive motors work produces;

A plurality of guide members, described guide member arrange by this way, and promptly their are each other at a distance of predetermined interval, and move forward and backward by the rotatory force that sends from rotating shaft; With

The cover part, described cover spare is supported on first end of guide member, and moves forward or backward with guide member, thereby opens or close air inlet.

2, according to the described air-conditioner of claim 1, wherein said guide member is made up of the upper and lower guide member that is set parallel to each other at upper position and lower position.

3, according to the described air-conditioner of claim 1, wherein the predetermined portions at each guide member is provided with tooth bar, thereby comes the rotatory force of the axis of rotation to be sent on the guide member; With

Each end in rotating shaft is provided with pinion, so that rotatory force sent to the tooth bar that is arranged on each guide member.

4, according to the described air-conditioner of claim 1, wherein said drive motors comprises stepper motor, and described stepper motor is designed to and can accurately controls its rotating speed.

5, according to the described air-conditioner of claim 1, wherein casing is provided with a plurality of through holes that make guide member pass casing; With

Lead rib and extend back, so that each guide member is supported and leads from the edge of each through hole.

6, according to the described air-conditioner of claim 5, wherein second end at each guide member is provided with block, and the rib of leading that described block is associated blocks, thereby has limited the moving range of cover part.

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