CN107166518B

CN107166518B - Indoor unit of air conditioner

Info

Publication number: CN107166518B
Application number: CN201710309236.7A
Authority: CN
Inventors: 李进涛; 李朋; 谢琳琳; 高丽丽
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2017-05-04
Filing date: 2017-05-04
Publication date: 2020-03-31
Anticipated expiration: 2037-05-04
Also published as: CN107166518A

Abstract

The invention provides an indoor unit of an air conditioner, which comprises a shell, a fan and a fan, wherein the shell is provided with an air inlet and an air outlet; the heat exchanger is arranged in the shell and is configured to enable air entering the shell from the air inlet to exchange heat with the air to form heat exchange air; a fan disposed in the cabinet and configured to cause the heat exchange air to be blown toward the indoor space through the air outlet; the movable cover plate is movably arranged at the air outlet and is configured to move away from the air outlet so as to form an annular air supply gap between the edge of the movable cover plate and the edge of the air outlet or move close to the air outlet so as to seal the air outlet; and at least one electrically controlled driving device configured to be controlled to drive the movable cover plate to move. The air supply structure of the indoor unit of the air conditioner is novel and unique, and is beneficial to uniformly blowing air into a room in a large range so as to uniformly cool or heat the room.

Description

Indoor unit of air conditioner

Technical Field

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

Background

At present, indoor units of household air conditioners have an air supply structure, and generally include an air supply outlet formed in a casing and an air guide device arranged at the air supply outlet. The air guide device is provided with a swinging blade or an air guide plate to guide the air supply direction. Most current air conditioners use above-mentioned air supply structure, and the structure is single, lacks the innovation, is difficult to bring better experience for the user.

Disclosure of Invention

The invention aims to provide an indoor unit of an air conditioner, which has a novel and unique air supply structure, is beneficial to uniformly blow air to the indoor in a large range and uniformly cool or heat the indoor.

In order to achieve the above object, the present invention provides an indoor unit of an air conditioner, comprising:

a housing having an air inlet and an air outlet;

the heat exchanger is arranged in the shell and is configured to enable air entering the shell from the air inlet to exchange heat with the air to form heat exchange air;

a fan disposed in the cabinet and configured to cause the heat exchange air to be blown toward the indoor space through the air outlet;

the movable cover plate is movably arranged at the air outlet and is configured to move away from the air outlet so as to form an annular air supply gap between the edge of the movable cover plate and the edge of the air outlet or move close to the air outlet so as to seal the air outlet; and

at least one electrically controlled drive device configured to be controlled to drive the movable cover plate to move.

Optionally, the electronically controlled drive means comprises: the sliding chute plate is fixedly arranged on the inner wall of the shell and is provided with a sliding chute; the sliding rod is arranged in the sliding groove in a sliding manner, one end of the sliding rod is connected to the movable cover plate, and a rack is arranged on the sliding rod; a gear engaged with the rack; and the motor can be controlled to rotate positively and negatively and is configured to drive the gear to rotate so as to drive the sliding rod to move and slide in the sliding groove in a translational manner and further drive the movable cover plate to move in a translational manner.

Optionally, the length of the runner is longer than the length of the runner plate; and the two ends of the slide bar, which protrude out of the two ends of the chute plate, are respectively provided with a group of positioning bulges, each group of positioning bulges comprises at least one positioning bulge, and when the slide bar slides to the limit position, the positioning bulges are abutted against the end part of the chute plate so as to limit the sliding range of the slide bar.

Optionally, the number of the electric control driving devices is multiple; the movable cover plate is provided with a plurality of mounting shafts which are parallel to each other and correspond to the electric control driving devices one by one, and the end part of each mounting shaft is connected with the corresponding slide bar of the electric control driving device; and the machine shell is provided with a plurality of mounting holes at the edge close to the air outlet, and each mounting shaft can be axially and translationally inserted into one corresponding mounting hole so as to allow the movable cover plate to be axially and translationally far away from or close to the air outlet along the mounting shafts.

Optionally, the movable cover plate is provided with a square air outlet for allowing the heat-exchange air to be blown out from the casing.

Optionally, the air supply opening is provided with a plurality of mutually parallel air guide grid plates, and two ends of each air guide grid plate in the length direction are hinged to the movable cover plate so as to be capable of pivoting around an axis parallel to the length direction of the air guide grid plate, so that the air guide grid plates can synchronously pivot to change the air supply direction of the air supply opening.

Optionally, the air outlet is located at the front side of the casing; and the air inlet is positioned at the rear side of the shell.

Optionally, the outlet vent and the movable cover plate are both circular.

Optionally, the fan is an axial fan and its axis of rotation is arranged perpendicular to the movable cover plate.

Optionally, the heat exchanger is of a flat plate structure and is disposed behind the fan.

The air conditioner indoor unit is provided with a movable cover plate at the air outlet, and the movable cover plate can form an annular air supply gap with the edge of the air outlet when moving away from the air outlet under the drive of the electric control driving device, so that air is dispersed and blown out along the plane of the movable cover plate. The air outlet mode is novel and unique, the air supply direction is greatly expanded, and the indoor uniform cooling or heating is facilitated.

Furthermore, in the air-conditioning indoor unit, the electric control driving device drives the movable cover plate by using the motor and the gear rack mechanism, so that the air-conditioning indoor unit is simple in structure and easy to manufacture.

Furthermore, in the indoor unit of the air conditioner, the movable cover plate can be provided with an air supply outlet. The user opens, closes and the air supply direction through controlling this supply-air outlet to combine together with the switching of annular air supply clearance, can make up out multiple air supply mode, satisfy user's diversified air supply demand.

Furthermore, in the air conditioner indoor unit, the air outlet can be positioned at the front side of the casing, and when the air conditioner supplies air through the annular air supply gap, the air outlet of the air conditioner is blown out along the vertical surface approximately, so that discomfort of a human body caused by blowing the air to the human body is avoided.

Furthermore, in the indoor unit of the air conditioner, the fan is preferably an axial flow fan, because the wind of the axial flow fan is blown out along the axial direction, the wind pressure at the center is smaller, the wind pressure at the edge is larger, and the high-pressure wind at the edge of the axial flow fan is diffused and blown out by arranging the annular air supply gap, so that the air outlet is more uniform.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

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

fig. 2 is an exploded view of the indoor unit of the air conditioner shown in fig. 1;

fig. 3 is a schematic sectional view of the air conditioning indoor unit shown in fig. 1 taken along a plane extending back and forth;

fig. 4 is a schematic view showing a state in which a movable cover of the air conditioning indoor unit shown in fig. 3 is moved forward and backward;

fig. 5 is a schematic structural diagram of the electrically controlled driving device in fig. 2.

Detailed Description

An air conditioning indoor unit of the present invention will be described with reference to fig. 1 to 5. In the description of the embodiments of the present invention, the orientations or positional relationships indicated by "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention; fig. 2 is an exploded view of the indoor unit of the air conditioner shown in fig. 1; fig. 3 is a schematic sectional view of the air conditioning indoor unit shown in fig. 1 taken along a plane extending back and forth; fig. 4 is a schematic view illustrating a state in which the movable cover 200 of the air conditioning indoor unit shown in fig. 3 is moved forward and backward; fig. 5 is a schematic structural diagram of the electrically controlled driving device in fig. 2.

As shown in fig. 1 to 4, an air conditioning indoor unit according to an embodiment of the present invention may generally include a casing 100, a heat exchanger 400, a fan 500, a movable cover 200, and at least one electrically controlled driving device 600. The heat exchanger 400 of the indoor unit of the air conditioner, a compressor, a condenser, a throttling device, a connecting pipeline and other accessories of the outdoor unit of the air conditioner form a vapor compression refrigeration cycle system together, so that refrigeration/heating of the air conditioner is realized.

The air-conditioning indoor unit can be a wall-mounted air-conditioning indoor unit or a floor-type air-conditioning indoor unit in the traditional sense, and can also be a cylindrical air-conditioning indoor unit with the structure shown in figures 1 and 2. The casing 100 is provided with an air inlet 120 and an air outlet 110, and particularly, for the structure shown in fig. 1 and 2, the casing 100 is cylindrical, and two axial sides are open to form the air inlet and the air outlet. The heat exchanger 400 is disposed in the casing 100 and configured to exchange heat with air entering the casing 100 from the air inlet 120 to form heat-exchange air (when the indoor unit of the air conditioner is in the cooling mode, the heat exchanger 400 cools the air to form heat-exchange air with a lower temperature, and when the indoor unit of the air conditioner is in the heating mode, the heat exchanger 400 heats the air to form heat-exchange air with a higher temperature). The heat exchanger 400 may be a finned heat exchanger, or another type of heat exchanger. The fan 500 is disposed in the cabinet 100 and configured to induce heat-exchange air to be blown toward the indoor space through the outlet 110. That is, the air conditioning indoor unit uses the fan 500 to realize forced convection heat exchange between air and the heat exchanger 400, thereby improving heat exchange efficiency, and the fan 500 also serves to supply air to the indoor space. The movable cover 200 is movably disposed at the air outlet 110, and configured to be movable away from the air outlet 110 to form an annular blowing gap 230 between an edge of the air outlet 110 and the air outlet 110, or movable close to the air outlet 110 to close the air outlet 110. The electrically controlled driving device 600 is configured to controllably drive the movable cover 200 to move.

In the embodiment of the present invention, when the indoor unit of the air conditioner is not opened, the movable cover 200 may close the air outlet 110, so as to prevent dust or other impurities from entering the casing 100 and accumulating on the surfaces of the heat exchanger 400 and the fan 500 to affect the operation performance of the air conditioner. When the air conditioning indoor unit is operated, the movable cover 200 is moved to form the annular blowing gap 230 to blow air to the outside. In addition, the present invention can blow air around the plane of the movable cover 200 (as shown by the arrows in fig. 1) by using the annular air blowing gap 230, so that the air blowing direction is greatly expanded, and the temperature of the room is uniformly reduced or increased.

In some embodiments, as shown in fig. 2 to 5, the electrically controlled driving device includes a chute plate 620, a slide bar 610, a gear 630, and a motor (not shown) capable of controlled forward and reverse rotation. The chute plate 620 is fixedly disposed on the inner wall of the housing 100, and has a chute formed thereon (the chute extends in the front-rear direction in the figure). The sliding rod 610 is slidably disposed in the sliding slot, one end of the sliding rod is connected to the movable cover 200, and the sliding rod 610 is provided with a rack 622. The gear 630 is used to engage the rack 622. The motor is configured to drive the gear 630 to rotate so as to drive the sliding rod 610 to slide in the sliding slot, and further drive the movable cover 200 to translate. The motor is preferably a stepper motor with a more controllable angle of rotation.

In some embodiments, as shown in fig. 2-5, the length of the slide bar 610 is made longer than the length of the chute plate 620. Moreover, two ends of the sliding rod 610 protruding out of the chute plate 620 are respectively provided with a set of positioning protrusions, and each set of positioning protrusions comprises at least one positioning protrusion. Preferably, one of the positioning protrusions includes two positioning protrusions 613, and the other positioning protrusion includes two positioning protrusions 615, and when the sliding bar 610 slides to the limit position, the positioning

protrusions

613, 615 will abut against the end of the sliding channel plate 620 to define the sliding range of the sliding bar 610, that is, the telescopic range of the movable cover 200. For example, as shown in fig. 3 and 4, the moving direction of the movable cover 200 is along the front-back direction, when the movable cover 200 is located at the rear limit position, as shown in fig. 3, the positioning protrusion 613 will abut against the front end of the chute plate 620, so that the sliding rod 610 cannot drive the movable cover 200 to move backward. When the movable cover 200 is located at the front limit position, as shown in fig. 4, the positioning protrusion 615 abuts against the rear end of the chute plate 620, so that the sliding rod 610 cannot drive the movable cover 200 to move forward.

In some embodiments, as shown in fig. 2 to 4, the number of the electric control driving devices 600 is multiple, the movable cover 200 has a plurality of mounting shafts 240 parallel to each other and corresponding to the electric control driving devices 600 one by one, an end of each mounting shaft 240 is connected to a sliding rod 610 of the corresponding electric control driving device 600, the housing 100 is provided with a plurality of mounting holes 190 at an edge near the air outlet 110, and each mounting shaft 240 is inserted into one corresponding mounting hole 190 in an axially translatable manner.

The number of the electrically controlled driving devices 600 is preferably four, and the electrically controlled driving devices are uniformly distributed along the circumferential direction of the inner wall of the cylindrical housing 100. Correspondingly, the number of the mounting shafts 240 is also four, which extend perpendicularly to the movable cover 200, and the mounting holes 190 are formed on the protrusions of the inner wall of the casing 100. The movable cover 200 can move away from (forward) the outlet 110 to form an annular blowing gap 230 (fig. 4) or close to (backward) the outlet 110 to close the outlet 110 (fig. 3) when moving in a translation along the axial direction (the forward and backward directions shown in fig. 1 to 5) of the mounting shaft 240. At this time, the previous annular blowing gap 230 disappears.

In the embodiment of the invention, the movable cover plate 200 is moved by adopting the electric control driving device 600, so that the movable cover plate is more convenient and intelligent. Moreover, the electric control driving device 600 adopts a driving mode of a gear rack mechanism, so that the telescopic stroke of the movable cover plate 200 can be more controllable, and the air outlet area of the annular air supply gap 230 can be conveniently and accurately adjusted.

In some embodiments, as shown in fig. 1 to 4, the movable cover plate 200 may further include a blowing port 210 for allowing the heat-exchanged air to be blown out from the casing 100. The user opens the annular air supply gap 230 and the air supply opening 210 alternatively or simultaneously, and controls the air supply direction of the air supply opening 210, so that various air supply modes are realized, and diversified air supply requirements of the user are met.

Preferably, a plurality of air-guiding grills 300 parallel to each other may be further provided at the air blowing port 210, and both ends of each air-guiding grille 300 in the length direction are hinged to the movable cover plate 200 to be pivotable about an axis parallel to the length direction thereof, so that the plurality of air-guiding grills 300 simultaneously pivotally change the air blowing direction of the air blowing port 210. In addition, it is also possible to allow the air guide grid plate 300 to be pivoted to an angle in synchronization, in which the plurality of air guide grid plates 300 close the air blowing ports (as shown in fig. 1 and 2). The air blowing opening 210 is preferably square in order to conveniently arrange the air guide grill 300.

Specifically, the air deflection grill panel 300 may be extended horizontally, vertically, or obliquely. When the air guide grid plate 300 extends horizontally, up-and-down air sweeping can be realized, and when the air guide grid plate 300 extends vertically, left-and-right air sweeping can be realized. In the embodiment of fig. 1 to 4, only the horizontally extending air guiding grid plate structure is illustrated, and fig. 3 and 4 illustrate a state in which the air guiding grid plate 300 guides air downward, and the direction of the air flow is indicated by an arrow.

When the air conditioner indoor unit operates, a user may manually rotate the angle of the air-guiding grill 300 to adjust the wind direction. Of course, an electric mode may also be adopted, so that the stepping motor drives the air guiding grid plate 300 to rotate, and the specific structural form is generally used in the prior art and is not described herein again. In addition, two groups of air guide grid plates can be arranged, one group of air guide grid plates extends vertically, the other group of air guide grid plates extends horizontally, the two groups of air guide grid plates are matched with each other to enlarge an air supply angle, the specific structure is common in the prior art, and detailed explanation is omitted.

In some embodiments, as shown in fig. 1 to 4, the air outlet 110 may be located at the front side of the casing 100, and the air inlet 120 may be located at the rear side of the casing 100. When air is supplied through the annular air supply gap 230, the air outlet of the annular air supply gap is blown out along a vertical surface approximately, and the annular air supply gap cannot blow to human bodies to cause discomfort. It is preferable that the air outlet 110 and the movable cover 200 are both circular to improve the appearance, and when the air outlet 110 is circular, the annular air supply gap 230 is circular to provide more uniform air supply. In addition, the intake vent 120 is preferably provided with an intake grill 130 for allowing air to pass therethrough.

The structure of the above-described embodiment of the present invention is preferably configured such that the axial flow fan is disposed with its rotation axis perpendicular to the movable cover 200. As shown in fig. 1 to 4, the casing 100 is a cylinder with a horizontal axis, the air inlet 120 and the air outlet 110 are located on a vertical plane, the movable cover 200 extends vertically, and the rotation axis of the axial flow fan 500 extends in a horizontal direction. Because axial fan's wind blows off along the axial, and center department wind pressure is less, and the edge wind pressure is great, through setting up annular air supply clearance 230, makes axial fan 500 high-pressure wind in edge disperse to blow off, makes its wind pressure suitably reduce to be closer with the wind pressure of center department, can make wind more even on the whole.

In some embodiments, as shown in fig. 1 to 4, the heat exchanger 400 may have a flat plate structure, and the heat exchanger of the flat plate structure is matched with the axial flow fan to improve heat exchange efficiency and is disposed behind the fan 500. In some alternative embodiments, the heat exchanger 400 may also be disposed in front of the fan 500.

In the above embodiments of the present invention, the casing is cylindrical, so that the indoor unit of the air conditioner has only one set of air outlet structures, and each air outlet structure includes one of the air inlet 120, the air outlet 110, the fan 500, and the movable cover 200.

In some other embodiments not illustrated in the drawings, one or more groups of air outlet structures may be provided as appropriate according to the difference of the overall shape of the air conditioning indoor unit. For example, in the case of a horizontally extending elongated wall-mounted air conditioning indoor unit, two or three air outlet structures may be provided in a lateral arrangement. For the vertical strip-shaped floor type air conditioner indoor unit, two or three air outlet structures which are longitudinally arranged can be arranged. The detailed structure of the above embodiments is not described herein.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. An indoor unit of an air conditioner, comprising:

a housing having an air inlet and an air outlet;

a fan disposed in the cabinet and configured to cause the heat exchange air to be blown toward an indoor space through the air outlet;

at least one electrically controlled driving device configured to be controlled to drive the movable cover plate to move; and is

The movable cover plate is provided with a square air supply outlet for allowing the heat exchange air to be blown out of the shell;

the fan is an axial flow fan, and the rotation axis of the fan is perpendicular to the movable cover plate.

2. The indoor unit of an air conditioner according to claim 1, wherein the electric control driving means includes:

the sliding groove plate is fixedly arranged on the inner wall of the shell and is provided with a sliding groove;

the sliding rod is arranged in the sliding groove in a sliding mode, one end of the sliding rod is connected to the movable cover plate, and a rack is arranged on the sliding rod;

a gear engaged with the rack; and

and the motor can be controlled to rotate positively and negatively and is configured to drive the gear to rotate so as to drive the sliding rod to slide in the sliding groove in a translational manner, and further drive the movable cover plate to translate.

3. The indoor unit of air conditioner according to claim 2, wherein

The length of the sliding rod is longer than that of the sliding groove plate; and is

The two ends of the sliding rod protrude out of the two ends of the sliding groove plate, a group of positioning bulges are respectively arranged on the two ends of the sliding groove plate, each group of positioning bulges comprises at least one positioning bulge, and when the sliding rod slides to the limit position, the positioning bulges are abutted against the end part of the sliding groove plate so as to limit the sliding range of the sliding rod.

4. The indoor unit of air conditioner according to claim 2, wherein

The number of the electric control driving devices is multiple;

the movable cover plate is provided with a plurality of mounting shafts which are parallel to each other and correspond to the electric control driving devices one by one, and the end part of each mounting shaft is connected with the corresponding sliding rod of the electric control driving device; and is

The casing is provided with a plurality of mounting holes at the edge close to the air outlet, and each mounting shaft can be axially and translationally inserted into one corresponding mounting hole so as to allow the movable cover plate to be axially and translationally far away from or close to the air outlet along the mounting shafts.

5. The indoor unit of air conditioner according to claim 1, wherein

The air supply opening is provided with a plurality of mutually parallel air guide grid plates, and two ends of each air guide grid plate in the length direction are hinged to the movable cover plate so as to be capable of pivoting around an axis parallel to the length direction of the air guide grid plate, so that the air guide grid plates can synchronously pivot to change the air supply direction of the air supply opening.

6. The indoor unit of air conditioner according to claim 1, wherein

The air outlet is positioned on the front side of the shell; and is

The air inlet is positioned at the rear side of the shell.

7. The indoor unit of air conditioner according to claim 1, wherein

The air outlet and the movable cover plate are both circular.

8. The indoor unit of air conditioner according to claim 1, wherein

The heat exchanger is of a flat plate structure and is arranged behind the fan.