WO2022244056A1

WO2022244056A1 - Air conditioner

Info

Publication number: WO2022244056A1
Application number: PCT/JP2021/018608
Authority: WO
Inventors: 昌和伊藤; 滉一郎吉川
Original assignee: 三菱重工サーマルシステムズ株式会社
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-11-24
Also published as: GB2620346A; GB2620346A8; CN117425800A; DE112021007669T5; GB202316338D0

Abstract

This air conditioner comprises: a casing having a blowout port opening in the horizontal direction; a blower that is provided in the casing and blows air toward the front where the blowout port is located; a vertical louver that rotates about a first axis extending in the width direction of the blowout port and thereby transitions between a closed position where the vertical louver closes the blowout port and a guide position where the vertical louver guides air forward with a downward-facing guide surface; and an air guide plate that rotates outside the rotational path of the vertical louver about a second axis, which is lower than the first axis, and thereby transitions between a standby position where the air guide plate is stored above the blowout port and an air guide position below the front of the vertical louver where the air guide plate guides forward the air guided by the guide surface.

Description

Air conditioner

The present disclosure relates to air conditioners.

As an air conditioner (indoor unit) attached to the ceiling of a room, for example, the one described in Patent Document 1 below is known. A ceiling-suspended air conditioner described in Patent Document 1 includes a casing having a blower outlet opening in a horizontal direction, a blower provided in the casing, a heat exchanger provided downstream of the blower, and a blower. and flaps provided above and below the outlet.

The air pressure-fed by the blower passes through the heat exchanger and becomes cold or warm air and is supplied into the room from the air outlet. At this time, the direction of the blown air is changed by adjusting the angle of the flap.

Japanese Patent Application Laid-Open No. 2010-112600

By the way, in recent years, there has been a demand to reduce the discomfort (feeling of a draft) caused by the air blowing from the air conditioner directly hitting the human body. In the air conditioner according to Patent Literature 1, for example, when the flap is directed downward, the blown air may directly hit the user, giving the user a feeling of being drafted.

The present disclosure has been made to solve the above problems, and aims to provide an air conditioner in which the drafty feeling is further reduced.

In order to solve the above problems, an air conditioner according to the present disclosure includes a casing having an air outlet opening in a horizontal direction, and a casing provided in the casing for blowing air toward the front where the air outlet is located. The air blower rotates around a first axis extending in the width direction of the air outlet, thereby switching between a closed position in which the air outlet is closed and a guide position in which the air is guided forward by a guide surface facing downward. an upper and lower louver that transitions between a standby position that can be accommodated above the outlet by rotating around a second axis that is lower than the first axis and outside the rotation trajectory of the upper and lower louvers; a baffle plate that is positioned forwardly and downwardly of the louver and transitions between a baffle position that guides forward the air guided by the guide surface.

An air conditioner according to the present disclosure includes a casing having an air outlet opening in a horizontal direction, an air blower provided in the casing for blowing air toward the front where the air outlet is located, and a width of the air outlet. an upper and lower louver that rotates about a first axis extending in a direction to transition between a closed position that closes the air outlet and a guide position that guides the air forward with a guide surface facing downward; a plurality of left and right louvers that are provided behind the upper and lower louvers and rotate about a third axis extending in the height direction of the outlet to guide the direction of the air in the horizontal direction; The front edges of the louvers are recessed to receive the rear edges of the upper and lower louvers in the guide position by recessing forward.

According to the present disclosure, it is possible to provide an air conditioner in which the draft feeling is further reduced.

1 is a perspective view showing the appearance of an air conditioner according to an embodiment of the present disclosure; FIG. 1 is a cross-sectional schematic diagram showing an internal configuration of an air conditioner according to an embodiment of the present disclosure; FIG. FIG. 5 is an explanatory diagram showing how the upper and lower louvers and the baffle plate according to the embodiment of the present disclosure operate; FIG. 4 is a cross-sectional view showing a state in which the upper and lower louvers are in the closed position and the baffle plate is in the standby position according to the embodiment of the present disclosure; FIG. 4 is a cross-sectional view showing a state in which the upper and lower louvers according to the embodiment of the present disclosure are at the guide position and the baffle plate is at the standby position; FIG. 4 is a cross-sectional view showing a state in which the upper and lower louvers according to the embodiment of the present disclosure are at the guiding position and the baffle plate is at the baffle position; FIG. 4 is a cross-sectional view showing a state in which the upper and lower louvers according to the embodiment of the present disclosure are at the guide position, and the left and right louvers are most rotated in either the left or right direction; 4 is a left side view of the upper and lower louvers according to the embodiment of the present disclosure; FIG. 4 is a right side view of the upper and lower louvers according to the embodiment of the present disclosure; FIG.

(Configuration of air conditioner)
An air conditioner 100 according to an embodiment of the present disclosure will be described below with reference to FIGS. 1 to 9. FIG. As shown in FIGS. 1 and 2, an air conditioner 100 according to the present embodiment includes a casing 1, a blower 2, a heat exchanger 10, an upper and lower louver 3, a baffle plate 4, left and right louvers 5, It has

(Construction of casing)
The casing 1 has a rectangular box shape when viewed from the bottom. A blowout port 1A is formed on the front surface of the casing 1 (that is, one surface facing the horizontal direction). Two outlets 1A are provided at intervals in the width direction. Further, an intake port 1B for taking air into the casing 1 is formed on the bottom surface of the casing 1. As shown in FIG.

A blower 2 and a heat exchanger 10 are provided inside the casing 1 . The blower 2 pumps the air taken in from the intake port 1B. The heat exchanger 10 is arranged in a space (blowing path P) between the blower 2 and the outlet 1A. The heat exchanger 10 is part of a refrigerant circuit (not shown), and exchanges heat between the air sent from the blower 2 and the refrigerant. As a result, the air that has passed through the heat exchanger 10 becomes hot air or cold air and is supplied from the air outlet 1A into the room. In the following description, the side where the outlet 1A is located when viewed from the blower 2 is called the front side, and the opposite side is called the rear side.

(Structure of air outlet)
The air outlet 1A is provided with a vertical louver 3, a baffle plate 4, and a horizontal louver 5. - 特許庁The upper and lower louvers 3 are plate-like members having dimensions capable of closing the outlet 1A. Although details will be described later, the vertical louver 3 is provided to vertically change the flow direction of the air blown out from the air outlet 1A. The baffle plate 4 is stored above the upper and lower louvers 3 and is flush with the baffle plate 4 . The baffle plate 4 is provided to guide the flow of air guided by the upper and lower louvers 3 forward. The left and right louvers 5 are provided behind the upper and lower louvers 3 at the outlet 1A. The left and right louvers 5 are provided to change the flow direction of the air blown out from the outlet 1A to the left and right.

(Structure of upper and lower louvers)
As shown in FIG. 3, the upper and lower louvers 3 are rotatable around a first axis A1 extending in the width direction of the outlet 1A. The vertical louver 3 can change its posture between a closed position P1 that closes the outlet 1A and a guide position P2 that is rotated rearward from the closed position P1. The attitude of the upper and lower louvers 3 is adjusted by an actuator (not shown).

More specifically, as shown in FIGS. 4 to 6, the upper and lower louver 3 has a plate-like upper and lower louver main body 31 and a tab 32 protruding from the back surface (guide surface 3S) of the upper and lower louver main body 31. ing. The tab 32 is rotatably supported around the first axis A1.

Furthermore, as shown in FIGS. 8 and 9, projecting

portions

6A and 6B are provided on both sides in the width direction of the upper and lower louvers 3 for supporting the upper and lower louvers 3 with the casing 1 so that they cannot fall off. The

protrusions

6A and 6B protrude leftward and rightward from both ends of the upper and lower louvers 3 in the width direction. As shown in FIG. 8, the

protruding portions

6A and 6B are substantially columnar, and a portion thereof is cut away by 1/4 in the circumferential direction to form

notch portions

61A and 61B. Circumferential positions at which the

notches

61A and 61B are formed are different from each other by 180° between the

protrusions

6A and 6B. That is, the

projections

6A and 6B have shapes that are rotationally symmetrical to each other.

A cap 7 is fitted to these

protrusions

6A and 6B while being inserted into the hole of the casing 1. The cap 7 has a tubular shape covering the

protrusions

6A and 6B from the outer peripheral side. The cap 7 has a cylindrical cap body 71 and a convex portion 72 projecting radially from a portion of the outer peripheral surface of the cap body 71 . The convex portion 72 is provided to restrict the rotation range of the upper and lower louvers 3 by engaging with grooves formed in the casing 1 . While the

protrusions

6A and 6B have rotationally symmetrical shapes, the cap 7 has the same shape on both sides in the width direction. In other words, the cap 7 is a common component on both sides in the width direction.

(Construction of baffle plate)
As shown in FIG. 3, the baffle plate 4 is rotatable around a second axis A2 extending in the width direction of the outlet 1A. The baffle plate 4 can change its posture between a standby position P3 located above the outlet 1A and a baffle position P4 located below and in front of the upper and lower louvers 3 . The posture of the baffle plate 4 is adjusted by an actuator (not shown). The second axis A2 is positioned below and on the rear side of the first axis A1. Further, the locus of rotation of the baffle plate 4 is located outside the locus of rotation of the upper and lower louvers 3 . That is, the radius of rotation of the baffle plate 4 is larger than the radius of rotation of the upper and lower louvers 3 . In other words, the locus of rotation of the baffle plate 4 does not overlap with the locus of rotation of the upper and lower louvers 3 .

More specifically, as shown in FIGS. 4 to 6 , the baffle plate 4 has a plate-shaped baffle plate main body 41 and a rotating arm 42 attached to the edge of the baffle plate main body 41 . is doing. A surface of the baffle plate main body 41 that faces the rear side at the standby position P3 is a baffle surface 4S. The rotating arm 42 is rotatably supported around the second axis A2.

(Configuration of left and right louvers)
As shown in FIGS. 4 to 6, the left and right louvers 5 are rotatable about a third axis A3 extending in the vertical direction. The left and right louver 5 has a plate-like left and right louver main body 51 that extends in the vertical direction, and a columnar shaft portion 52 that supports the left and right louver main body 51 so as to be rotatable with respect to the casing 1 . The shaft portion 52 is rotatable around the third axis A3. The left and right louver main bodies 51 have front edges formed with recesses R recessed rearward. As a result, as shown in FIG. 7, when the upper and lower louvers 3 are at the guide position P2 and the left and right louvers 5 are in the most rotated state in either the left or right direction, the rear ends t of the upper and lower louvers 3 are It will be in the state accommodated in the recessed part R. As shown in FIG. That is, the end portion t and the left and right louvers 5 do not interfere with each other.

(Effect)
Next, operation of the air conditioner 100 will be described with reference to FIGS. 4 to 6. FIG. As shown in FIG. 4, when the air conditioner 100 is in a stopped state, the upper and lower louvers 3 are at the closed position P1 and the baffle plate 4 is at the standby position P3. That is, the upper and lower louvers 3 close the outlet 1A, and the baffle plate 4 is stored above the upper and lower louvers 3. As shown in FIG.

On the other hand, as shown in FIG. 5, when only the upper and lower louvers 3 are rotated to transition to the guide position P2, air is guided forward (horizontally) by the guide surfaces 3S of the upper and lower louver bodies 31 facing downward. be done.

Here, as shown in FIG. 6, the upper and lower louvers 3 may be slightly rotated downward from the guide position P2 to the downward position P2'. In this case, the air flows forward and downward along the guide surface 3S. As a result, the wind directly hits the user near the air conditioner 100, which may give the user a feeling of being drafted.

Therefore, in the air conditioner 100 according to the present embodiment, as shown in FIG. 6, the baffle plate 4 is shifted to the baffle position P4. As a result, the air guided by the upper and lower louvers 3 is guided by the air guide surface 4S of the air guide plate 4, so that the air can be guided forward without being directed downward. As a result, it is possible to reduce the feeling of draft caused by the blowing air downward.

Furthermore, according to the above configuration, since the rotational trajectories of the upper and lower louvers 3 and the baffle plate 4 do not overlap, the orientation of one can be adjusted independently of the orientation of the other. As a result, air can be supplied in various directions without a drafty feeling.

In addition, according to the above configuration, since the upper and lower louvers 3 and the baffle plate 4 are stored in a flush state, the appearance of the entire device can be improved.

Further, according to the above configuration, since the radius of rotation of the baffle plate 4 is larger than the radius of rotation of the upper and lower louvers 3, the baffle plate 4 is positioned forward of the upper and lower louvers 3 when the plate is at the air guide position P4. can be extended to As a result, the air guided by the upper and lower louvers 3 can be stably received by the baffle plate 4 and guided forward more smoothly.

Furthermore, according to the above configuration, since the recesses R are formed in the front edges of the left and right louvers 5, interference between the upper and lower louvers 3 at the guide position P2 and the left and right louvers 5 can be avoided. As a result, the size of the device in the front-rear direction can be kept small.

In addition, according to the above configuration, since the projecting

portions

6A and 6B of the upper and lower louvers 3 have rotationally symmetrical shapes on both sides in the width direction, the shape of the cap 7 can be the same on both sides in the width direction. can do. That is, only by preparing one type of cap 7, it is possible to correspond to the

protrusions

6A and 6B on both sides in the width direction. Thereby, the number of parts can be reduced, and the manufacturing cost can be reduced.

(Other embodiments)
The embodiments of the present disclosure have been described above. Various changes and modifications can be made to the above configuration without departing from the gist of the present disclosure. For example, in the above embodiment, the example in which the rotation trajectory of the baffle plate 4 does not overlap with the rotation trajectory of the upper and lower louvers 3 has been described. However, it is also possible to employ a configuration that avoids interference between the baffle plate 4 and the upper and lower louvers 3 by exclusively controlling their movements in a state where the rotational trajectories of the air guide plate 4 and the upper and lower louvers 3 partially overlap.

[Appendix]
The air conditioner described in each embodiment is understood, for example, as follows.

(1) The air conditioner 100 according to the first aspect includes a casing 1 having an air outlet 1A that opens in the horizontal direction, and a casing 1 provided in the casing 1 that directs air toward the front where the air outlet 1A is located. The blower 2 that blows air rotates around the first axis A1 extending in the width direction of the blower outlet 1A, thereby directing the air forward by the closed position P1 that closes the blower outlet 1A and the downwardly facing guide surface 3S. By rotating the upper and lower louvers 3 between the guide position P2 and the second axis A2 below the first axis A1 outside the rotation trajectory of the upper and lower louvers 3, A guide position P3 positioned in front and below the upper and lower louvers 3 and guides the air guided by the guide surface 3S forward. A wind plate 4 is provided.

According to the above configuration, by shifting the air guide plate 4 to the air guide position P4, the air guided by the upper and lower louvers 3 can be guided forward without being directed downward. As a result, it is possible to reduce the feeling of draft caused by the blowing air downward.

(2) In the air conditioner 100 according to the second aspect, the locus of rotation of the upper and lower louvers 3 and the locus of rotation of the baffle plate 4 do not have to overlap each other.

According to the above configuration, since the rotational trajectories of the upper and lower louvers 3 and the baffle plate 4 do not overlap, the orientation of one can be adjusted independently of the orientation of the other.

(3) In the air conditioner 100 according to the third aspect, when the upper and lower louvers 3 are at the closed position P1 and the air guide plate 4 is at the standby position P3, the upper and lower louvers 3 and the air guide plate 4 may be flush with each other.

According to the above configuration, the appearance of the entire device can be enhanced.

(4) In the air conditioner 100 according to the fourth aspect, the radius of rotation of the baffle plate 4 may be larger than the radius of rotation of the upper and lower louvers 3 .

According to the above configuration, the baffle plate 4 can be projected further forward than the upper and lower louvers 3 when it is at the baffle position P4.

(5) The air conditioner 100 according to the fifth aspect is provided behind the upper and lower louvers 3, and rotates about a third axis A3 extending in the height direction of the outlet 1A, so that the air conditioner 100 in the horizontal direction A plurality of left and right louvers 5 for guiding the direction of the air are further provided, and the front edges of the left and right louvers 5 are recessed forward so that the rear edges of the upper and lower louvers 3 at the guide position P2 are formed. A recess R may be formed to accommodate the .

According to the above configuration, it is possible to avoid interference between the upper and lower louvers 3 and the left and right louvers 5 at the guide position P2. As a result, the size of the device in the front-rear direction can be kept small.

(6) In the air conditioner 100 according to the sixth aspect, the upper and lower louvers 3 have

protrusions

6A and 6B that protrude in the width direction from the upper and lower louvers 3 and are inserted into holes formed in the casing 1. and a cap 7 that is attached to the

protrusions

6A and 6B to fix the upper and lower louvers 3 to the casing 1 so as not to fall off, and the

protrusions

6A and 6B are provided on both sides in the width direction. The caps 7 may have shapes that are rotationally symmetrical to each other, and the caps 7 may have the same shape on both sides in the width direction.

According to the above configuration, since the projecting

portions

6A and 6B have rotationally symmetrical shapes on both sides in the width direction, the shape of the cap 7 can be the same on both sides in the width direction. That is, only by preparing one type of cap 7, it is possible to correspond to the

protrusions

6A and 6B on both sides in the width direction.

(7) An air conditioner according to a seventh aspect includes a casing 1 having an air outlet 1A that opens in a horizontal direction, and a casing 1 provided in the casing 1 for blowing air toward the front where the air outlet 1A is located. The air blower 2 rotates around the first axis A1 extending in the width direction of the air outlet 1A to close the air outlet 1A at a closed position P1, and the downwardly facing guide surface 3S directs the air forward. and a guide position P2 for guiding, and a vertical louver 3 provided behind the vertical louver 3 and rotating around a third axis A3 extending in the height direction of the outlet 1A. and a plurality of left and right louvers 5 for guiding the direction of the air in the direction, and the front edges of the left and right louvers 5 are recessed forward so that the upper and lower louvers 3 located at the guide position P2 are positioned behind the upper and lower louvers 3. A recess R is formed to accommodate the side edge.

100 Air conditioner 1 Casing

1A Air outlet

1B Air inlet 2 Blower 3 Upper and lower louvers 3S Guide surface 4 Air guide plate 4S Air guide surface 5 Left and

right louvers

6A,

6B Protrusions

61A, 61B Notch 7 Cap 71 Cap body 72 Protrusion 10 Heat Exchanger 31 Upper and lower louver main body 32 Tab 41 Air guide plate main body 42 Rotating arm 51 Left and right louver main body 52 Shaft A1 First axis A2 Second axis A3 Third axis R Recess

Claims

a casing having an outlet opening in a horizontal direction;
an air blower provided in the casing for blowing air toward the front where the air outlet is located;
By rotating around the first axis extending in the width direction of the air outlet, transition is made between a closed position that closes the air outlet and a guide position that guides the air forward with a guide surface facing downward. an upper and lower louver that
By rotating around the second axis below the first axis outside the rotation trajectory of the upper and lower louvers, a standby position above the outlet and a position below and in front of the upper and lower louvers are obtained. and an air guide plate that transitions between an air guide position that guides air guided by the guide surface forward.
The air conditioner according to claim 1, wherein the locus of rotation of the upper and lower louvers and the locus of rotation of the baffle plate do not overlap each other.
The air conditioner according to claim 1 or 2, wherein the upper and lower louvers and the air guide plate are flush with each other when the upper and lower louvers are in the closed position and the air guide plate is in the standby position.
The air conditioner according to any one of claims 1 to 3, wherein the radius of rotation of the baffle plate is larger than the radius of rotation of the upper and lower louvers.
further comprising a plurality of left and right louvers provided behind the upper and lower louvers for guiding the direction of the air in the horizontal direction by rotating about a third axis extending in the height direction of the outlet;
5. The front edge of each of the left and right louvers is recessed forward to form a recess for accommodating the rear edge of the upper and lower louvers in the guide position. The air conditioner according to the paragraph.
The upper and lower louvers are
a projecting portion that projects in the width direction from the upper and lower louvers and is inserted into a hole formed in the casing;
a cap that is attached to the projecting portion to fix the upper and lower louvers to the casing so as not to fall off;
has
The protrusions have shapes that are rotationally symmetrical to each other on both sides in the width direction,
The air conditioner according to any one of claims 1 to 5, wherein the cap has the same shape on both sides in the width direction.
a casing having an outlet opening in a horizontal direction;
an air blower provided in the casing for blowing air toward the front where the air outlet is located;
By rotating around the first axis extending in the width direction of the air outlet, transition is made between a closed position that closes the air outlet and a guide position that guides the air forward with a guide surface facing downward. an upper and lower louver that
a plurality of left and right louvers that are provided behind the upper and lower louvers and rotate about a third axis extending in the height direction of the outlet to guide the direction of the air in the horizontal direction;
An air conditioner in which recesses are formed in the front edges of the left and right louvers to receive the rear edges of the upper and lower louvers in the guide positions by recessing forward.