KR20020023528A - A multi-division indoor unit of air conditioner - Google Patents

Abstract

PURPOSE: An indoor unit of multi-split air conditioner is provided to increase an intake air volume by arranging a plurality of blower fans, while allowing the suction grill and front grill to be easily manufactured through injection process. CONSTITUTION: An indoor unit comprises a chassis(50) fixed to a wall, and which has a heat exchanger(100) positioned in front of the chassis, and an air flow channel(52) for guiding the air passed through the heat exchanger, a first support portion(60) for supporting the heat exchanger, and a second support portion(70) for supporting a rotating shaft(114); blower fans(110,112) interposed between the chassis and the heat exchanger, and which are connected through the rotating shaft such that blower fans rotate in an integrated manner; a front frame(80) coupled to the front of the chassis so as to cooperate with the chassis to form a space for accommodating the heat exchanger and blower fans; and a suction grill(90) coupled to the front surface of the front frame, and which has an inlet port(92).

Description

A multi-division indoor unit of air conditioner

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to an indoor unit of a multi-part split type air conditioner in which a plurality of blowing fans are arranged in a row, and a front frame and a suction grill are separated into a plurality.

In general, the air conditioner is to supply the building or room by processing the intake air to maintain the indoor air in a comfortable condition, there are largely divided (window type) and separate type (seperate type or split type).

The one-piece type and the separate type are functionally the same, but the one-piece type integrates the function of cooling heat dissipation, and is directly installed by drilling a hole in a wall of a house or by hanging a device on a window. And a compression device to connect the two devices separated from each other by a refrigerant pipe.

The separation type of the air conditioner as described above is largely composed of an indoor unit performing a cooling function, an outdoor unit performing a heat dissipation and compression function, and a refrigerant pipe connecting the indoor unit and the outdoor unit to each other.

1 is an exploded perspective view illustrating an internal structure of an indoor unit of a separate air conditioner according to the prior art, and referring to this, the indoor unit of the conventional separate air conditioner includes a chassis 20 fixed to a wall; It is coupled to the front surface of the chassis 20 to form a receiving space of the heat exchanger 49, the blowing fan 40 and the motor 42 together with the chassis 20, the inlet 12 is formed on the upper surface, A front frame 10 having a discharge port 14 formed on the lower surface of the front surface; It is configured to include a suction grill 30 rotatably coupled to the front of the front frame 10, the suction port 32 is formed.

One blower fan 40 is positioned in the horizontal direction in front of the chassis 20, and the blower fan 40 is rotatably supported by a support part 24 protruding perpendicularly to the front of the chassis 20. It is supported, and the heat exchanger 49 is bent in the front and the upper side of the blower fan 40, the lower side of the heat exchanger 49 so as to collect the condensate flowing from the heat exchanger (49) A condensate receiver 44 is formed at an upper portion, and a louver 45a for adjusting the left and right wind directions of the air discharged to the discharge port 14 and a vane for adjusting the up and down wind direction of the air discharged to the discharge port 14. The discharge grill 45 on which the 46b is installed is located.

The front frame 10 includes a plurality of filters for filtering bulky foreign matter from the air sucked into the air conditioner through the suction port 32 of the suction grill 30 and the suction port 12 of the front frame 10. An air filter 36 and a plurality of dust collectors 38 that ionize and remove dust in the air passing through the air filter 36 are mounted.

The chassis 20 is formed with a flow path portion 22 forming a flow path of air flowing by the blowing fan 40, the motor for driving the blowing fan 40 on one side of the blowing fan 40 42 is connected, and the control unit 46 is installed on the front side of the motor 42 is installed various electric components (not shown) for the operation of the air conditioner.

In the conventional air conditioner configured as described above, the indoor air sucked through the suction ports 12 and 32 is cooled through heat exchange with the refrigerant while passing through the heat exchanger 49, and the air thus cooled is a blower fan. After passing through the 40, it is guided to the flow path part 22 and discharged to the room through the discharge port 14.

However, the structure of a conventional separate type air conditioner indoor unit using one blower fan 40 as described above, when designed to be applied to a large-capacity air conditioner system, the blower fan 40 and the heat exchanger 49 Since the length has to be increased, there have been problems caused by various malfunctions and failures.

That is, if the length of the blower fan 40 is too long, the manufacturing of the blower fan 40 becomes difficult, and there is a great problem that the middle part sags or breaks due to its own weight. In addition, the long blower fan 40 has a problem that the operation is very unstable due to the sag during rotation, and at the same time there is a risk of being damaged by contact with the flow path 22 or the condensate receiver 44.

Similarly, when the length of the heat exchanger 49 is increased, the heat exchanger 49 sags due to its own weight. When the heat exchanger 49 sags in this way, a gap between the blower fan 40 and the heat exchanger 49 may be reduced. As the distance gets closer, there is a problem that the probability of contacting each other becomes high.

As the length of the heat exchanger 49 and the blower fan 40 increases, the suction grill 30 and the front frame 10 also need to be increased in length, and the injection into the integrated body is not easy. There is a problem.

In addition, even if the suction grill 30 and the front frame 10 are integrally injected long, the air filter 36 needs to be cleaned, or due to a failure of the dust collector 38, the suction grill (for the repair work) 32) When the suction grill 30 is integrally formed, the opening and closing operation of the suction grille 30 is not easy, and for the repair of the electric component or the motor 42 installed in the control unit 46 in case of failure. There is an inconvenience in that the suction grill 30 and the entire front frame 10 should be separated from the chassis 20.

The present invention has been made to solve the above-mentioned problems of the prior art, solves the problem that it is difficult to form the suction grill and the discharge grill integrally as the capacity of the air conditioner increases, and to clean the internal parts of the air conditioner and The object is to provide an air conditioner that facilitates repair work.

Further, another object of the present invention is to provide an air conditioner capable of performing a large amount of heat exchange by installing a plurality of blowing fans to suck a lot of air and preventing sagging of the blowing fans.

1 is an exploded perspective view showing the internal structure of a detachable air conditioner indoor unit according to the prior art,

2 is a perspective view of a multi-segment split type air conditioner indoor unit according to the present invention;

3 is an exploded perspective view of a multi-segment split type air conditioner indoor unit according to the present invention;

4 is a cross-sectional view taken along line B-B of FIG. 2;

5 is an enlarged view of a portion A of FIG. 3.

<Explanation of symbols on main parts of the drawings>

50: chassis 52: flow path

60: first support 62: left support

62a: through hole 66: right support part

66a: through hole 68: motor support member

69: motor accommodating part 69a: control part

70: second support portion 70b: fixing groove

76: support member 76b: fixing groove

80: front frame 82: left cover

84: right cover 86: inlet

87: left front grille 88: right front grille

89: center side front grill 90: suction grill

92: suction port 94: left suction grill

96: right side suction grill 98: center side suction grill

99a: air filter 99b: dust collector

100: heat exchanger 100a: first heat exchanger

100b: second heat exchange part 104: condensate receiving part

106: discharge port 108: discharge grill

108a: louver 108b: vane

110: left blowing fan 110a: rotating shaft

112: right blowing fan 112a: rotating shaft

113: bearing 114: rotating shaft

118: motor

The indoor unit of the multi-part split type air conditioner according to the present invention for solving the above problems is fixed to a wall, a heat exchanger is located in front, and supports a flow path portion for guiding air passing through the heat exchanger and the heat exchanger. A chassis integrally formed with a first support for supporting the second shaft and a second support for supporting the rotary shaft; A blowing fan positioned between the chassis and the heat exchanger and connected by the rotating shaft to enable the plurality of to be integrally rotated; A front frame coupled to the front of the chassis to form an accommodation space of a heat exchanger and a blowing fan together with the chassis; It is characterized in that it comprises a suction grill coupled to the front of the front frame, the suction port is formed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view of a multi-segment split type air conditioner indoor unit according to the present invention, Figure 3 is an exploded perspective view of a multi-segment split type air conditioner indoor unit according to the present invention, Figure 4 is a cross-sectional view of the BB line of FIG. 5 is an enlarged view of a portion A of FIG. 3.

The indoor unit of the multi-part split type air conditioner according to the present invention is fixed to a wall surface, and a heat exchanger 100 is located in front of the flow path unit 52 for guiding air passing through the heat exchanger 100 and the A chassis 50 in which a first support 60 for supporting the heat exchanger 100 and a second support 70 for supporting the rotary shaft 114 are integrally formed; A blowing fan (110, 112) located between the chassis (50) and the heat exchanger (100) and connected by the rotating shaft (114) so that a plurality of parts may be integrally rotated; A front frame (80) coupled to the front of the chassis (50) to form a receiving space of the heat exchanger (100) and the blower fan (110, 112) together with the chassis (50); Is coupled to the front of the front frame 80, and comprises a suction grill 90, the suction port 92 is formed.

The heat exchanger 100 of the chassis 50 at the upper end of the first heat exchanger 100a and the first heat exchanger 100a formed to be parallel to the suction port 92 formed in the suction grill 90. And a second heat exchange part 100b formed to be inclined upward toward an upper end part, and a condensate receiver 104 is disposed on the lower side of the first heat exchange part 100a to collect condensed water falling from the heat exchanger 100. ) Is formed, and the discharge grill 108 is positioned, the lower portion forming the discharge port 106 together with the lower portion of the chassis (50).

The discharge grill 108 is provided with a louver 108a for adjusting the left and right wind direction of the air discharged to the discharge port 106 and a vane 108b for adjusting the vertical direction.

The flow path part 52 is formed on the front surface of the chassis 50 to be heat exchanged in the heat exchanger 100, and then guides the air moved to the front side of the chassis 50 to the discharge port 106.

The first support part 60 protrudes vertically toward both sides of the heat exchanger 100 on both sides of the front surface of the chassis 50 so as to support both sides of the heat exchanger 100. It consists of a left support 62 for supporting the left side of the 100 and the right support 66 for supporting the right side of the heat exchanger (100).

The first heat exchange part 100a may have a front surface supporting the first heat exchange part 100a and an upper surface of the left support part 62 and the right support part 66 so as to support the second heat exchange part 100b. And the same shape as the cross section of the second heat exchange part 100b.

The rotary shaft 114 connects opposite surfaces of the blower fans 110 and 112 to be located between the plurality of blower fans 110 and 112, and a bearing 113 is fixed to the rotary shaft 114, and the bearing ( 113, one side is fixed to the second support 70, the other side is fixed to the support member 76 is covered on the front of the second support (70).

The second support part 70 has a semicircular fixing groove 70b formed on the front surface 70a of the second support part 70 so that one side of the bearing 113 can be fixed, and the support member 76 is formed on the rear surface 76a of the second support part 70a. A semicircular fixing groove 76b is formed to surround the outer circumferential surface of the bearing 113 together with the semicircular fixing groove 70b of the second support part 70 to fix the other side of the bearing 113.

Meanwhile, the support member 76 supports the first heat exchanger 100a and the second heat exchanger 100b together with the left support 62 and the right support 66, and the support member 76 The front surface 76c and the top surface 76d of the first heat exchanger 100a and the second heat exchanger 100b are supported so as to support the central portions of the first heat exchanger 100a and the second heat exchanger 100b. It is formed in the same shape as the cross section.

The blower fan 110 and 112 may include a left blower fan 110 positioned between the left supporter 62, the second supporter 70, and the support member 76, and the right supporter 66 and the second supporter 70. ) And a right blowing fan 112 positioned between the support member 76, a left shaft of the left blowing fan 110 is connected to a rotation shaft 110a, and a rotation shaft of the left blowing fan 110. 110a is inserted into a left bearing (not shown) which is inserted into and fixed to a through hole 62a formed in the left support 62, and is rotatably supported by the left support 62.

On the other hand, the right end of the right blower fan 112 is connected to the motor 118, the right end of the right blower fan 112 is connected to the rotary shaft 112a, the rotary shaft of the right blower fan (112) 112a is connected to the motor 118 through the through hole 66a of the right support 66.

One side of the motor 118 is supported by the right support 66, and the other side is supported by a motor support member 68 formed perpendicular to the chassis 50.

On the other hand, the right support 66 and the motor support member 68 forms a motor accommodating portion 69 for receiving the motor 118, one side of the motor accommodating portion 69 in front of the motor accommodating portion The control unit 69a which covers the 69 and which is equipped with an electric component (not shown) for operation of the air conditioner on the other side is installed.

The front frame 80 includes a left cover 82 and a right cover 84 fixed to both sides of the chassis 50 to protect the heat exchanger 100 and the support 60, and the left cover 82. And fixed between the right cover 84, the suction port 86 is formed on the upper surface, to filter the dust in the air introduced into the indoor unit by the rotation of the left blower fan 110 and the right blower fan 112 It consists of a plurality of front grills 87, 88 and 89 on which an air filter 99a and a dust collector 99b which ionize dust in the air and provide comfortable air.

The front grills 87, 88 and 89 are located on the left front grill 87 located at the front right side and the right side of the top surface of the left cover 82, and at the left side of the front left side and the top surface of the right cover 84. It consists of a right front grill 88 and a central front grill 89 located between the left front grill 87 and the right front grill 88.

The suction grill 90 has a left suction grille 94 rotatably connected to the front of the left front grille 87 and a right side rotatably hinged to the front of the right front grille 88. It consists of a suction grill 96 and a center suction grill 98 rotatably connected to the center front grille 89 by a hinge.

Referring to the operation of the present invention configured as described above are as follows.

First, when the motor 118 is driven, the right blowing fan 112 connected to the motor 118 rotates, and the left blowing fan 110 connected by the right blowing fan 112 and the rotating shaft 114 is It rotates integrally with the right blowing fan 112, the air in the room side is the suction port (92) of the suction grill (94, 96, 98) and the suction port (86) of the front grill (87, 88, 89) It is sucked into the indoor unit through.

The bulky foreign matter in the air passing through the suction ports 86 and 92 is filtered by the air filter 99a, and the air from which the foreign matter is removed while passing through the air filter 99a is collected in the dust collector 99b. It is purified by clean air while passing through it. The purified air passing through the air filter 99a and the dust collector 99b is heat-exchanged by the heat exchanger 100 and then discharged to the indoor side through the discharge port 106 while being guided by the flow path part 52. .

At this time, the right side of the left blowing fan 110 and the left side of the right blowing fan 112 are connected by the rotary shaft 114, the bearing 113 is mounted on the rotary shaft 114, the bearing 113 Is fixed to the second support part 70 by the support member 76, the plurality of blower fan (110, 112) can be rotated smoothly inside the indoor unit without hitting or twisting the portion connected to the rotary shaft. Will be.

Since the air conditioner of the present invention configured as described above can support a plurality of blowing fans by the support member, it is possible to install a plurality of blowing fans, and heat exchange by sucking a larger amount of air than when installing one blowing fan. Since it can be done, there is an effect that it can respond more appropriately to large-capacity heating and cooling.

And, by installing a plurality of suction grille and the front grille can solve the problem that the injection is not easy when each of the suction grille and the front grille is formed integrally, cleaning operation of the air filter and dust collector mounted on the front grille It has an easy effect.

In addition, when the right side of the air conditioner needs to be opened due to a failure of the electric parts in the motor and the control unit, the inconvenience of having to open all of the front frame and the suction grill is eliminated by opening only the right cover. have.

Claims (4)

A chassis fixed to a wall, having a heat exchanger positioned in front, integrally formed with a flow path portion for guiding the air passing through the heat exchanger, a first support portion for supporting the heat exchanger, and a second support portion for supporting the rotating shaft; A blowing fan positioned between the chassis and the heat exchanger and connected by the rotating shaft to enable the plurality of to be integrally rotated; A front frame coupled to the front of the chassis to form an accommodation space of a heat exchanger and a blowing fan together with the chassis; Is coupled to the front of the front frame, the indoor unit of the multi-segment split type air conditioner comprising a suction grill is formed. The method of claim 1, The bearing is fixed to the rotating shaft, the bearing is fixed to the second support portion, the other side is the indoor unit of the multi-segment split type air conditioner, characterized in that fixed to the support member covered on the front of the second support portion . The method of claim 1, The front frame is composed of a left cover and a right cover fixed to both sides of the chassis to protect the heat exchanger and the support, and a plurality of front grills fixed between the left cover and the right cover, the inlet is formed on the upper surface An indoor unit of a multi-segment split type air conditioner. The method of claim 3, wherein The front grill includes a left front grill located at the front right side of the left cover and a right side of the upper surface, a right front grill located at the left side of the front left side and the top surface of the right cover, and between the left front grill and the right front grill. Indoor unit of the multi-segment split type air conditioner, characterized in that consisting of the central front grill located.