CN100561058C - air conditioner - Google Patents

Abstract

Provide a kind of air-conditioner.This air-conditioner comprises: main drain pan is divided into Lower Half to the inner space of air-conditioner; The chassis, the bottom outward appearance of qualification air-conditioner; The indoor blower unit, it is installed on the top part of main drain pan, with the introducing and the discharge of guiding room air; And control cabinet, a plurality of electronic components of the operation of control air-conditioner are installed therein.Control cabinet strides across main drain pan and vertically installs.

Description

air conditioner

technical field

The present invention relates to an air conditioner, and more particularly, to an air conditioner in which a control box, in which electronic components are installed, is mounted in a vertical direction and fixed to a main drain pan and an indoor blower unit.

Background technique

Generally, an air conditioner includes a compressor, an expansion valve, and an indoor heat exchanger. An air conditioner maintains the temperature of a room evenly to provide a comfortable environment for humans.

That is, the air conditioner is a heating/cooling device installed at an indoor space of a room, an office, or a home to heat or cool the indoor space. The air conditioner has a cooling cycle such as a compressor-outdoor heat exchanger-expansion valve-indoor heat exchanger or a heating cycle formed by reverse circulation of refrigerant.

However, since the conventional air conditioner is large-sized or generally installed on a wall of a building, it is difficult to move the air conditioner once installed. This is troublesome for the user.

Therefore, recently, a mobile air conditioner having wheels at the bottom has been developed to provide convenience to users. Such a portable air conditioner is disclosed in Korean Utility Model No. 0252478.

In a conventional portable air conditioner, the control box occupies a large space, increasing the overall size of the air conditioner. In addition, electronic components that generate heat, such as capacitors, are arranged in the control box. The control box is closed by a cover. Therefore, electronic components may be damaged by heat generated and accumulated in the control box.

Furthermore, since the interior space of the control box is small when the cover is opened, it is difficult to install electronic components in the control box, and assembly performance deteriorates.

Contents of the invention

Accordingly, the present invention is directed to an air conditioner that substantially obviates one or more problems due to limitations and disadvantages of the related art.

An object of the present invention is to provide an air conditioner which can maximize space utilization by installing a control box at the front side of a main drain pan in a vertical direction.

Another object of the present invention is to provide an air conditioner having a capacitor exposed to the outside of the control box by penetrating the side of the control box and thus cooled by air flowing in the air conditioner.

Still another object of the present invention is to provide an air conditioner having a control box which can selectively fold one side thereof, thereby improving assembly performance by installing electronic components in a state where one side is unfolded.

Additional advantages, objects and features of the invention are set forth in part in the ensuing description, and in part will be apparent to those skilled in the art upon examination of the following, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

To achieve these objects and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided an air conditioner comprising: a main drain pan dividing the interior space of the air conditioner into upper and lower halves; a chassis, Defines the appearance of the lower part of the air conditioner; an indoor blower unit installed on the upper part of the main drain pan to guide the introduction and discharge of indoor air; and a control box in which a plurality of electronic components that control the operation of the air conditioner are installed, wherein The control box is mounted vertically across the main drain pan.

In another aspect of the present invention, there is provided an air conditioner, which includes: a main drain pan that divides the interior space of the air conditioner into upper and lower halves; and a control box in which a plurality of electronic components that control the operation of the air conditioner are installed. , the control box is installed vertically across the main drain pan, wherein the control box includes a box body in which electronic components are installed and a box cover for closing the open front of the box body; The side shield part of the external appearance is formed at the end of the case so as to be bendable.

According to the present invention, the control box is mounted straddling in the vertical direction in a state of being inserted into the recessed control box installation portion on the front portion of the main drain pan. Therefore, the space utilization rate of the air conditioner can be maximized, and thus the air conditioner can be made more compact.

In addition, the capacitors are exposed outside the control box by penetrating the side of the control box. Therefore, the capacitor can be air-cooled by the air flowing in the air conditioner, and thus damage to the electronic components in the control box can be prevented in advance.

Also, since the sides of the control box are designed to be folded, the ability to assemble electronic components in the control box can be improved.

In addition, since the control box support supports the control box installed on the control box mounting portion, the control box can be prevented from falling. Therefore, safety is ensured during installation of the control box, and installation stability can be improved.

Furthermore, in the air conditioner according to the present invention, by installing the control box on the end of the main drain pan, the length of wires connecting the electronic components to the control panel can be reduced. By reducing the number of wires, manufacturing costs can be reduced, and short circuits can be prevented. Therefore, product reliability can be improved.

Description of drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. In the attached picture:

1 is a front perspective view of an air conditioner according to an embodiment of the present invention;

2 is a rear perspective view of an air conditioner according to an embodiment of the present invention;

3 is an exploded perspective view of an internal structure of an air conditioner according to an embodiment of the present invention;

4 and 5 are front and rear perspective views, respectively, of a rear frame according to an embodiment of the present invention;

6 and 7 are front and rear perspective views, respectively, of an inlet grille according to an embodiment of the present invention;

Figure 8 is a perspective view illustrating a cable securing member coupled to a chassis in accordance with an embodiment of the present invention;

9 and 10 are top and bottom perspective views of a cable securing member according to an embodiment of the present invention;

11 to 13 are longitudinal sectional views illustrating a process for assembling a cable fixing part according to an embodiment of the present invention;

14 and 15 are respectively front and rear perspective views illustrating an outdoor blower unit mounted on a chassis according to an embodiment of the present invention;

16 and 17 are front and rear perspective views illustrating a state in which a lower air guide and a lower orifice are separated from each other according to an embodiment of the present invention;

18 and 19 are left and right side views, respectively, showing a first heat exchanger coupled to an outdoor blower unit according to an embodiment of the present invention;

20 and 21 are front and rear perspective views of a front frame according to an embodiment of the present invention;

22 and 23 are top and bottom perspective views, respectively, of a main drain pan according to an embodiment of the present invention;

24 and 25 are front and rear perspective views illustrating a state in which an upper air guide and an upper orifice are separated from each other according to an embodiment of the present invention;

26 is a rear perspective view of an indoor blower unit coupled to a front frame in accordance with an embodiment of the present invention;

Figure 27 is a perspective view showing the installation of brackets and supporting angles according to an embodiment of the present invention;

28 is a front exploded perspective view of a control box according to an embodiment of the present invention; and

FIG. 29 is a view showing the air flow of the air conditioner according to the embodiment of the present invention.

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. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the teachings of the present invention. Concepts are conveyed to those skilled in the art.

1 and 2 are front and rear perspective views, respectively, of an air conditioner according to an embodiment of the present invention.

1 and 2, an air conditioner according to an embodiment of the present invention includes a front frame 100 defining an appearance of a front half of the air conditioner, and a rear frame 300 defining an appearance of a rear half of the air conditioner.

The front frame 100 forms a frame of the front half of the air conditioner, and partially forms the top and left and right sides of the air conditioner. A control panel 120 is provided on the front frame 100 . A user controls the operation of the air conditioner using the control panel 120 .

The rear frame 300 partially forms the top surface and left and right sides of the air conditioner and the rear half of the air conditioner. A discharge guide unit 400 for discharging heat-exchanged air to the outside is connected to the rear frame 300 . The discharge guide unit 400 will be described in more detail later.

Fig. 3 is an exploded perspective view of the internal structure of the air conditioner.

Referring to FIG. 3 , the front frame 100 is rectangular in shape. The front frame 100 protrudes forward at its central portion. Accordingly, the front frame 100 has a generally circular profile.

A grill mounting opening 102 is formed near an upper end of the front frame 100 . The grill installation opening 102 is a portion in which an exhaust window 110 to be described later is installed, and is formed in a rectangular shape extending in the horizontal direction.

The top surface of the front frame 100 is inclined at a predetermined angle. The front frame 100 is provided with a panel opening 104 in which a control panel 120 is to be installed. The panel opening 104 is formed in a rectangular shape corresponding to the shape of the control panel 120 . The front panel 200 is formed in a rectangular shape to define a front appearance of the air conditioner. The front panel 200 is fixed on the front of the front frame 100 . Accordingly, the front panel 200 has a shape corresponding to the front surface of the front frame 100 . That is, like the front frame 100, the upper end of the central portion of the front panel 200 protrudes farther than the lower end of the central portion. That is, the front panel 200 is circular (arc-shaped).

An exhaust window 110 through which heat exchange air is exhausted to the outside is installed in the grill installation opening 102 . The exhaust window 110 is provided to adjust a discharge direction of air. A plurality of exhaust louvers are provided in the exhaust hole 110 to direct air downward, upward, leftward, or rightward. A control panel 120 is mounted in the panel opening 104 . The control panel 120 is provided with a plurality of buttons. That is, a pair of button assemblies 122 are provided at a lower portion of the control panel 120 , and buttons are provided on the button assemblies 122 and exposed upward through the control panel 120 .

Control PCB 124 is mounted below button assembly 122. The control PCB 124 converts the button operations of the button assembly 122 into signals, and transmits the signals to a control unit (not shown). Control PCB 124 is supported by control frame 126. The control PCB 124 is surrounded by a box-shaped PCB housing 128.

The discharge hole 210 is formed through a portion near the upper end of the front panel 200 . The heat exchange air is discharged forward through the discharge hole 210 . Accordingly, the exhaust hole 210 is formed in a rectangular shape corresponding to the exhaust window 110 .

The rear frame 300 is coupled to the front frame 100 . Accordingly, the front end of the rear frame 300 is formed in a shape corresponding to the front frame 100 . That is, left and right front end portions of the rear frame 300 protrude forward to be rounded at a central portion thereof and correspond to left and right rear end portions of the front frame 100 .

An external air inlet 302 is formed at an upper half of the rear frame 300 . The outside air inlet 302 defines a passage through which outside air (room air) is introduced into the air conditioner. The external air inlet 302 is formed in a rectangular shape.

The external air inlet 302 is provided at a central portion with a rectangular filter frame 304 corresponding to the external air inlet 302 . The filter frame 304 is smaller than the outside air inlet 302 . Filter frame 304 supports special filters such as deodorizing filter 322 .

The outside air inlet 302 is closed by an air intake grill 310 . External air (room air) is introduced into the air conditioner through the intake grill. Therefore, the intake grill 310 is provided with a plurality of holes. The intake grill 310 is sized to correspond to the external air inlet 302 . The air intake grille 310 is slightly inclined forward.

The pre-filter 320 is installed on the frame of the external air inlet 302 . The pre-filter 320 is provided to filter foreign substances contained in the air introduced through the intake grill 310 . The size of the pre-filter corresponds to the size of the external air inlet 302 . A deodorizing filter 322 is provided in front of the pre-filter 320 . The deodorizing filter 322 is provided to remove bad smell from the air introduced through the intake grill 310 . The size of the deodorizing filter 322 corresponds to the size of the filter frame 304 and thus is fixed on the filter frame 304 .

The lower grill 330 is integrally formed with the lower half of the rear frame 300 . The lower grill 330 guides air into the air conditioner and prevents foreign objects from being introduced into the air conditioner.

A handle 340 is provided on the rear frame 300 . That is, handle openings 342 are installed near left and right upper ends of the rear frame 300 , and the handle 340 is inserted into the handle openings 342 . A handle 340 is provided to allow a user to easily lift and move the air conditioner.

The discharge guide unit 400 is connected to the rear frame 300 . The discharge guide unit 400 is provided to discharge heat-exchanged air in the air conditioner to the outdoor side. The discharge guide unit 400 has a first end connected to the rear frame 300 and a second end exposed to the outdoor outside.

The discharge guide unit 400 is installed to communicate with the inside of the lower half of the rear frame 300 , and includes a discharge duct 410 , a discharge nozzle 420 , a frame connector 430 and a nozzle connector 440 .

The discharge nozzle 420 defines an end for discharging air through the discharge conduit 410 . Exhaust conduit 410 is formed of a flexible material or shape so that it can be bent. A frame connector 430 is provided between the rear frame 300 and the exhaust duct 410 to guide installation of a lower end of the exhaust duct 410 on the rear frame 300 . A nozzle connector 440 is provided between the discharge conduit 410 and the discharge nozzle 420 in order to guide the coupling of the upper end of the discharge conduit to the discharge nozzle.

The lower appearance of the air conditioner is formed by a chassis 500 . The chassis 500 is coupled to lower ends of the front and rear frames 100 and 300, and supports various elements that will be described later. As shown in the figure, the chassis 500 is formed in a rectangular shape.

A plurality of wheels 502 are mounted on the bottom of chassis 500 . Wheels 502 are provided to easily move the air conditioner, and are provided at respective corners of the rectangular chassis 500 .

The first heat exchanger 510 is installed on the top center portion of the chassis 500 . That is, the first heat exchanger 510 is installed at the center portion of the chassis in the front-rear direction.

The first heat exchanger 510 functions to cool and heat the refrigerant by allowing the refrigerant to exchange heat with air.

That is, the air introduced through the lower grill 330 formed on the lower half of the rear frame 300 exchanges heat with the refrigerant flowing along the first heat exchanger 510 while passing through the first heat exchanger 510 , And then discharged to the outside side (outdoor side) through the discharge guide unit 400 .

The compressor 520 is installed at the right side of the first heat exchanger 510 . The compressor 520 is installed at a right rear end portion of the chassis 500 and is supported by a triangular-shaped compressor frame 522 . The compressor frame 522 is mounted on the chassis 500 .

The accumulator 530 is installed beside the compressor 520 . The accumulator 530 filters the liquid coolant so that only gaseous coolant can be introduced into the compressor 520 .

The condensed water detection unit 540 is installed in front of the compressor 520 . The condensed water detection unit 540 detects when condensed water collects a predetermined amount on the upper surface of the chassis 500, and displays the detection result.

A condensate pump 550 is further installed on the right front end of the chassis 500 . The condensate pump 550 pumps the condensate collected in the chassis 500 to the secondary drain pan 750 . The condensate pipe 560 is connected to the condensate pump 550 . The condensed water pipe 560 functions as a passage for guiding condensed water pumped by the condensed water pump 550 to the sub drain pan 750 . Therefore, the lower end of the condensed water pipe 560 is connected to the condensed water pump 550 , and the upper end is connected to the sub drain pan 750 .

A bracket 570 is further installed at the right end of the chassis 500 . The bracket 570 is formed with a rectangular plate to support the right end of the main drain pan 700 which will be described later.

Describing the bracket 570 in more detail, the bracket 570 is provided with a strength reinforcing groove 572 formed as a substantially rectangular groove at a central portion of the right surface. That is, the strength reinforcement groove 572 is provided to enhance the strength of the bracket 570 . A drain pan support 574 is provided on the left upper end of the bracket 570 . The drain pan support 574 contacts the main drain pan 700 and is threadedly coupled thereto.

For this, supporter coupling holes 574' are formed through front and rear portions and a central portion of the drain pan supporter 574, respectively. A supporter coupling hole 574' is formed at a position corresponding to the bracket coupling portion (see FIG. 23 ) so that the upper end of the bracket 570 can be coupled to the bottom of the main drain pan 700. Referring to FIG.

The drain pan support 574 is provided at its upper half with a cutout portion 576 cut in a rectangular shape from the left end to the right side. The cut-out portion 576 is formed so as not to interfere with the condensed water pipe 560 . That is, the cutout portion 576 is formed to correspond to the condensed water pipe passage groove (726 in FIG. 22).

形状弯曲的基座配合部分578从支架570的下端延伸。基座配合部分578随着它向前走向下倾斜，从而它在支架570联接到底盘500的顶部表面上时，插入在支架支撑件(见图14)中。by

A curved base engaging portion 578 extends from the lower end of the bracket 570 . The base engaging portion 578 slopes down as it goes forward so that it is inserted into the stand support (see FIG. 14 ) when the stand 570 is coupled to the top surface of the chassis 500 .

That is, the top surface of the chassis 500 is designed to have a right front side having the lowest level, and the condensate water pump 550 is installed thereon. Thus, when the base engaging portion 578 is raised to contact the top surface of the chassis 500, the drain pan support 574 slopes downward as it goes forward.

Therefore, in order for the drain pan support 574 to horizontally support the main drain pan 700, the lower end of the base fitting portion 578 is inclined downward as it goes forward.

A plurality of bracket coupling portions 579 are formed in the base fitting portion 578 . In a state where the bracket 570 is seated on the top surface of the chassis 500 , the bracket coupling portion 579 is screw-coupled to the chassis 500 .

Therefore, when the bracket coupling portion 579 is coupled to the chassis 500 side, the bracket 570 is locked by the chassis 500 .

A support angle 580 is further provided on the front end of the chassis 500 . A support angle 580 is provided to support the upper right portion of the air conditioner. A support angle 580 is vertically installed at a right front portion of the chassis 500 to support a front load of the main drain pan 700 .

The support angle 580 is formed by bending a rectangular plate at a right angle so that it has a V shape when viewed from the top. The support angle 580 has a lower end coupled to the right front end of the pan 500 and an upper end coupled to the right front end of the main drain pan 700 .

To this end, the support angle 580 is provided with a drain coupling portion 582 at the upper portion. A drain coupling portion 582 is provided at each of the front and right surfaces of the support angle 580 and is located at a lower position than the drain coupling portion 582 .

Thus, the support angle 580 supports the right front end load of the main drain pan 700 when the drain coupling portion 582 and the base coupling portion 584 are threadedly coupled to the angle hole (740 of FIG. 22 ) and the angle fixing hole 588 .

The chassis 500 is provided with a unit seating portion 503 at the left top surface. The outdoor blower unit 600 is fitted in the unit seating portion 503 . It is concave to have a protrusion corresponding to the cross-section of the lower end of the outdoor blower unit 600 .

Thus, when the outdoor blower unit 600 is inserted in the unit seating portion 503, the outdoor blower unit 600 maintains its upright state on the top surface of the chassis 500 (see FIG. 14).

A cable fixing part 590 is provided on the top rear portion of the chassis 500 . A cable fixing part 590 is provided to fix a power supply cable (C in FIG. 12 ) for supplying power to each element. The cable fixing part 590 is fixed on the cable seating part 504 raised upward from the chassis 500 to partially receive the power cable C. As shown in FIG. The cable fixing member 590 fixes the power cable C by pressing the outer surface of the power cable C. As shown in FIG.

Therefore, even when a pulling force is applied to the power cord C exposed to the outside of the air conditioner, the power cord C is not further pulled out. The cable fixing part 590 and the cable seating part 504 will be described in more detail later.

An outdoor blower unit 600 is provided at the left side of the first heat exchanger 510 . The outdoor blower unit 600 generates wind to flow air. That is, the outdoor blower unit 600 generates suction at the left side to suck air through the first heat exchanger 510 and discharge the sucked air to the upper right side.

To this end, the outdoor blower unit 600 includes a lower opening 610 and a lower air guide 620 defining a housing groove 640, a lower fan 630 generating wind through rotation in the housing groove 640, and a lower motor providing rotational force to the lower fan 630. 660. The lower aperture 610 supports various elements including the lower blower unit 800 and directs air to the left through the first heat exchanger 510 . Thus, a circular lower orifice hole 612 is formed at the central portion of the lower orifice 610 .

The lower air guide 620 is installed at the left side of the lower aperture 610 . The lower air guide 620 guides air flow together with the lower aperture 610 . A lower fan 630 for forcibly generating air flow is disposed between the lower aperture 610 and the lower air guide 620 . Accordingly, the housing slot 640 is defined by the lower aperture 610 and the lower air guide 620 to guide the air flowing through the lower fan 630 .

That is, the housing groove 640 is formed by grooves respectively formed at the left surface of the lower aperture 610 and the right surface of the lower air guide 620 to guide air discharged by the lower fan 630 . The case groove has a larger diameter than the outer diameter of the lower fan 630 to accommodate the lower fan 630 .

Exhaust guides 650 corresponding to each other are further formed on the lower aperture 610 and the lower air guide 620 , respectively. The discharge guide 650 functions to guide air from the case groove 640 to the discharge guide unit 400 . The upper end of the discharge guide 650 has a shape corresponding to that of the lower end of the discharge guide unit 400 .

A circular discharge grill 652 is inserted and installed in the inner upper end of the discharge guide 650 . The discharge grill 652 functions to prevent foreign matter from being introduced through the discharge guide 650 .

A lower motor hole 622 is formed in a central portion of the lower air guide 620 . Accordingly, the lower motor 660 is inserted and fixed in the lower motor hole 622 . The lower motor 660 generates rotational force using external power, and supplies the rotational force to the lower fan 630 to rotate the lower fan 630 .

A lower motor supporter 670 is further installed at the left side of the lower air guide 620 . The lower motor supporter 670 is provided to more firmly support the lower motor 660 mounted on the lower air guide 620 . The lower motor supporter 670 has a lower end adjoining the chassis 500 . The coupling relationship of elements of the outdoor blower unit 600 will be described in more detail later.

The main drain pan 700 is installed on the central rear portion of the front frame 100 . The main drain pan 700 is formed in a rectangular shape, functions to collect condensed water generated from the second heat exchanger 870, supports components, and divides the inner space of the air conditioner into upper and lower halves.

In more detail, an air conditioner is generally divided into an indoor side and an outdoor side. The main drain pan 700 functions to divide the air conditioner into indoor and outdoor sides. That is, with respect to the main drain pan 700, the outdoor side (radiation side) is formed at the lower half, and the indoor side (heat absorption side) is formed at the upper half.

The auxiliary drain pan 750 is installed below the main drain pan 700 . The sub-drain pan 750 is a portion for collecting and distributing condensed water fed by the condensed water pump 550 .

In more detail, the sub drain pan 750 extends in the front-rear direction and is installed at the upper side of the first heat exchanger 510 . Accordingly, the condensed water collected in the main drain pan 700 is guided and collected in the sub drain pan 750 . The condensed water fed into the sub drain pan 750 is evenly distributed to the upper end of the first heat exchanger 510 to be evaporated.

The indoor blower unit 800 is installed at an upper side of the main drain pan 700 . The indoor blower unit 800 guides indoor air into the air conditioner through the external air inlet 302 and vertically stands on the top surface of the main drain pan 700 .

The front appearance of the indoor blower unit 800 is provided with an upper air guide 810 for guiding air forced by an upper fan 850 . The upper air guide 810 is installed across the upper side of the main drain pan 700 . The upper air guide 810 is integrally formed with the upper fan case 820 . The upper fan case 820 is installed to surround the upper fan 850 .

Accordingly, the air forcibly discharged by the upper fan 850 is guided by the upper fan case 820 and is guided to the discharge guide part 824 . An upper motor hole 822 is formed through the upper air guide 810 . The upper motor 830 is inserted into the upper motor hole 822 . The upper motor 830 provides rotational force to the upper fan 850 .

A discharge guide part 824 is installed through an upper end of the upper air guide 810 . The exhaust guide part 824 is formed in a rectangular shape corresponding to the exhaust window 110 . Accordingly, the air guided by the upper fan case 820 is guided forward through the discharge guide member 824 and passes through the exhaust window 110 .

An upper motor supporter 840 is further provided at a lower side of the upper motor 830 . The upper motor supporter 840 has the same function as the lower motor supporter 670 . That is, the upper motor supporter 840 is provided to more firmly support the upper motor 830 . Accordingly, the upper motor supporter 840 has a lower end fixed on the front top surface of the main drain pan 700 .

Upper fan 850 is received in upper fan housing 820 . The upper fan 850 is provided to forcibly guide external air into the air conditioner through the intake grill 310 , and is coupled at a rear end of the upper motor 830 .

The upper aperture 860 is provided on the rear side of the upper air guide 810 . An upper aperture 860 is formed in a rectangular plate and is provided with a circular upper aperture hole 862 through which air flows.

The second heat exchanger 870 is installed at the rear side of the upper aperture 860 . The second heat exchanger 870 is provided to allow air introduced through the intake grill 310 to exchange heat with refrigerant, and is installed on the rear half of the main drain pan 700 .

Meanwhile, a control box 880 is installed at a right front end portion of the main drain pan 700 . A control box 880 is installed in the main drain pan 700 to receive a plurality of electronic components for controlling the operation of the air conditioner. That is, the upper half of the control box 880 protrudes upward from the main drain pan 700 , and the lower half protrudes downward from the main drain pan 700 .

The structure of the control box 880 will be described in more detail later.

4 and 5 are front and rear perspective views, respectively, of a rear frame according to an embodiment of the present invention.

4 and 5, the rear surface of the rear frame 300 is configured to be stepped. That is, the lengths of the upper and lower halves of the rear frame 300 are different from each other. The length of the lower half of the rear frame 300 is greater than the length of the upper half of the rear frame 300 . Accordingly, a stepped surface 350 is formed at the central portion of the rear frame 300 . That is, the stepped surface 350 is formed at the lower side of the external air inlet 302 formed through the upper half of the rear frame 300 .

A conduit connection opening 352 is vertically formed at the stepped surface 350 . The duct connection opening 352 is a portion to which the lower end of the discharge guide unit 400 is coupled. That is, the frame connector 430 of the discharge guide unit 400 is installed and inserted in the conduit connection opening 352 .

Accordingly, the conduit connection opening 352 is formed in a cylindrical shape corresponding to the lower end of the frame connector 430 . Grille protrusion insertion holes 354 are formed through left and right side ends of the stepped surface 350 . The grill protrusion insertion hole 354 is a portion into which the grill coupling protrusion 317 is inserted.

Meanwhile, a grill installation part 360 is formed at an upper side of the stepped surface 350 . The grill installation part 360 is a part on which the intake grill 310 is installed. It is formed in the rear of the external air inlet 302 .

A plurality of filter fixing hooks 362 on which the pre-filter 320 is mounted are formed on the edge of the external air inlet 302 . That is, filter fixing hooks 362 are respectively formed on the four corners of the rear surface of the end of the external air inlet 302 to fix the four corners of the pre-filter.

The lower grid 330 is formed on the lower side of the stepped surface 350 . The lower grill 330 may be formed only at the right side of the lower half of the rear frame 300 . That is, in FIG. 5, although the air intake grill 310 is formed through the lower half of the rear frame 300, air substantially cannot flow through the left side of the air intake grill 310 because it is blocked.

The reason why the lower grill 330 is formed only on the right side of the rear frame 300 is to allow air introduced through the lower grill 330 to pass through the first heat exchanger 510 . That is, the air introduced backward through the lower grill 330 is guided to the right side of the first heat exchanger 510 , and then is guided to the left side of the first heat exchanger 510 .

A duct hole 364 is formed through a lower end of the rear frame 300 . The pipe hole 364 is a portion in which a discharge pipe (not shown) for guiding the discharge of condensed water is installed.

A plurality of frame coupling protrusions 370 for coupling to the front frame 100 are formed on the front end of the rear frame 300 . The frame coupling protrusion 370 is a portion through which coupling members such as screws pass. Frame coupling protrusions 370 are formed on left and right side and upper ends of the rear frame 300 .

That is, the frame coupling protrusion 370 is formed on the center of the left and right ends and the upper and lower ends of the rear frame 300 , and the left and right sides of the front surface of the upper end. Accordingly, screws are inserted into the frame coupling protrusion 370 to achieve coupling of the rear frame 300 to the front frame 100 . Meanwhile, a removal groove 372 is formed on an upper rear side end portion of the rear frame 300 . The removal slots 372 are recessed inwardly from both sides of the rear frame 300 . The vertical length of the removal groove 372 is designed to almost correspond to the length of a human hand.

The removal groove 372 is provided to prevent interference with the user's hand when the user holds the removal rib 315 to pull the removal rib 315 of the intake grill 310 forward.

A grill hook coupling hole 374 is formed in an upper end of the rear frame 300 . The grill coupling hook 316 is inserted into the grill hook coupling hole 374 .

Grill hook coupling holes 374 are formed in left and right sides of the upper end of the grill mounting part 360 . The grille hook attachment holes 374 are sized such that the hook portions 316' of the grille attachment hooks 316 can be inserted therein.

6 and 7 are front and rear perspective views, respectively, of an air intake grill according to an embodiment of the present invention.

Referring to FIGS. 6 and 7 , a plurality of grill ribs 312 are formed at predetermined equal intervals on the intake grill 310 so that air flows between the grill ribs 312 .

The gaps between the grill ribs 312 may be blocked by a mesh or mesh to prevent the introduction of foreign matter.

A rib supporter 312 ′ is vertically formed at a central portion of the intake grill 310 . The rib support 312' functions to support the intake grill 310. Referring to FIG.

The intake grill 310 is provided with a duct receiving groove 313 for partially receiving the discharge guide unit 400 . That is, the intake grill 310 is provided with a forwardly recessed duct receiving groove 313 at the left portion. The lower end of the duct receiving groove 313 is formed in a semicircular shape corresponding to the front surface of the discharge duct 410 . Accordingly, the discharge conduit 410 and the front ends of the frame connector 430 are received in the conduit receiving groove 313 .

The intake grill 310 is inclined forward. Accordingly, both ends of the intake grill 310 are bent and extended forward so as to define a triangular-shaped grill side surface portion 314 whose width gradually increases downward. A grill reinforcement rib 314' is formed on the inner side of the grill side surface portion 314 to reinforce support strength.

Removal ribs 315 are further formed on the upper end of the intake grill 310 to facilitate removal. That is, the removal rib 315 protrudes from the upper end of the grill side surface portion 314 . Therefore, when the user pulls the removal rib 315 backward, the upper end of the intake grill 310 is separated from the rear frame 300 .

A pair of grill coupling hooks 316 is formed on the upper end of the intake grill 310 . The grill coupling hook 316 is a portion through which the upper end of the intake grill 310 is connected to the rear frame 300 . Grill coupling hooks 316 protrude forward from left and right upper ends.

The grill coupling hook 316 is designed to have its own elastic force so that its front end can move a predetermined distance and return to its original position. A hook portion 316 ′ is formed on the front end of the grill coupling hook 316 .

Therefore, after the grill coupling hook 316 is inserted into the grill hook coupling hole 374 of the rear frame 300, the grill coupling hook 316 is not disengaged from the grill hook coupling hole 374 due to the hook portion 316' unless a predetermined external force is applied.

A grill coupling protrusion 317 is further formed at a lower end of the intake grill 310 . The grill coupling protrusion 317 is a portion inserted into the grill protrusion insertion hole 354 . Therefore, they protrude from left and right lower ends of the intake grill 310 and are dimensioned to correspond to the width of the grill protrusion insertion hole 354 .

The cable fixing part 590 will be described below with reference to FIGS. 8 to 13 .

As shown in FIG. 8 , the cable fixing part 590 is coupled to the left corner of the top surface of the chassis 500 by the coupling part S. As shown in FIG. The cable seating part 504 on which the cable fixing part 590 is seated protrudes from the top surface of the chassis 500 .

The cable fixing part 590 is fixedly coupled to the top surface of the cable seating part 504 by the coupling part S. As shown in FIG. Here, the cable fixing part 590 is configured to press the outer surface of the power cable C. Referring to FIG.

In more detail, the cable seating portion 504 is provided at the top surface with a coupling hole 505 recessed downward and fixing the coupling part S, and a hook hole 506 into which the end of the cable fixing part 590 is inserted and hooked.

The fixing part coupling hole 505 is a portion to which the coupling part S is coupled. Fixing member coupling holes 505 are formed on the top surface of the cable seating portion 504 at predetermined intervals.

Accordingly, the cable fixing part 590 is selectively coupled to one of the fixing part coupling holes 505 . Accordingly, the coupling position of the cable fixing part 590 may vary.

A pair of seating portion reinforcing ribs 504 ′ is formed on the right top surface of the cable seating portion 504 spaced apart from the fixing part coupling hole 505 . The seating part reinforcement rib 504' is provided to prevent deformation of the cable seating part 504 when the fixing part hook protrusion (599 of FIG. 9) is fixedly inserted in the fixing part hook hole 506. Referring to FIG. The seating portion reinforcing ribs 504' are spaced apart from each other in parallel.

A cable guide 508 is provided on the rear side of the cable seating portion 504 . The cable guide 508 is elevated by a predetermined height from the top surface of the chassis to divide the upper space of the chassis 500 . The power cable C partially fixed by the cable fixing member 590 is drawn out of the air conditioner by the cable guide 508 .

That is, the front end of the cable guide 508 is opened to the position where the cable fixing member 590 is arranged. A cable exposure groove 508' is formed on the rear end of the cable guide 508 to allow the power cable C to be exposed to the outside of the air conditioner.

Accordingly, the power cable C located in the rear of the cable fixing part 590 is guided to the cable exposing groove 508' by the cable guide 508, and thus exposed to the outside of the air conditioner.

The cable fixing part 590 is placed on the cable seating part 504, and includes a coupling plate 592 coupled to the fixing part coupling hole 505, and a receiving part formed at the right end of the coupling plate 592 and having a circular shape so as to receive the power cable C 594.

The coupling plate 592 is generally formed in a rectangular shape, and coupled to the coupling part S. As shown in FIG. The bottom surface of the coupling plate 592 maintains a state of contact with the top surface of the cable seating portion 504 .

To this end, the coupling plate 592 is provided with a coupling hole (593 in FIG. 9 ) at the center, which cooperates with one of the fixing part coupling holes 505 to change the coupling position of the cable fixing part 590 .

The receiving portion 594 is integrally formed with the coupling plate 592 . The receiving portion 594 defines a plurality of receiving spaces 596 in which the power cables C are received. The receiving space 596 is designed to receive power cables C of various thicknesses. That is, the receiving space 596 includes a first receiving space 596' formed on the left side of the receiving part 594, and a first receiving space 596' formed at the right side of the first receiving space 596' and having a larger curvature than the first receiving space 596'. The second receiving space 596".

Therefore, according to the thickness of the power cord C, the power cord C may be selectively received in one of the first and second receiving spaces 596' and 596''.

That is, the cable fixing part 590 may be formed in various shapes depending on the shape of the applied power cable C. Referring to FIG. For example, when using a power cable C having a rectangular cross section, the receiving space 596 may be designed to have a rectangular shape.

Needless to say, the power cord C can be inserted into both of the first and second receiving spaces 596' and 596".

A pair of pressing protrusions 594' are provided on the top plates of the first and second receiving spaces 596' and 596'' to press the outer circumference of the power cord C received therein, thereby preventing the power cord C from moving forward and backward. Pull out. Compression protrusions 594' are spaced parallel to each other.

Fixing part reinforcing ribs 598 are provided on the front and rear ends of the top surface of the cable fixing part 590 to prevent deformation and damage of the cable fixing part 590 in advance.

That is, the power cable C is inserted into the receiving space 596 in a state where the bottom surface of the cable fixing member 590 contacts the cable seating portion 504 . At this time, the power cord C is applied with a pressing force by the pressing protrusion 594'.

The cable fixing part 590 exerts a vertical force (counterclockwise force) with respect to the coupling hole 593 . In this case, the cable fixing part 590 may be deformed and damaged. Therefore, it is desirable that the fixing part reinforcing rib 598 is formed on the top surface of the cable fixing part 590 .

形固定部件钩突起599形成在右端上，即在第二右空间的右侧下端上。The cable fixing part 590 is designed not to rotate forward and backward relative to the coupling hole 593 at its right portion. that is,

A shape fixing member hook protrusion 599 is formed on the right end, that is, on the right lower end of the second right space.

The fixing part hook protrusion 599 fits in the fixing part hook hole 506 , has a length corresponding to the length of the fixing part hook hole 506 and a thickness smaller than that of the fixing part hook hole 506 .

Therefore, after the fixing member hook protrusion 599 is inserted in the fixing member hook hole 506 in a state where the cable fixing member 590 is inclined as shown in FIG. is firmly hooked.

Assembly of the elements of the outdoor blower unit 600 will be described with reference to FIGS. 14 and 19 as follows.

As shown in the drawing, the outdoor blower unit 600 is formed in a cuboid shape by a lower aperture 610 and a lower air guide 620 coupled to each other. A space is defined in the outdoor blower unit 600 by housing grooves 640 symmetrically formed on the lower aperture 610 and the lower air guide 620 . A lower fan 630 is provided in the space.

The outdoor blower unit 600 is seated on the unit seat portion 503 to maintain its upright state on the chassis 500 . The outdoor blower unit 600 is firmly fixed to the chassis 500 through lower end corners fixed by coupling members.

Therefore, when the insertion portion 602 is inserted in the unit seating portion 503 , the front, rear, left, and right surfaces of the insertion portion 602 contact the inner surface of the unit seating portion 503 .

形联接凸缘615。The outdoor blower unit 600 is designed to support the load of the primary and secondary drain pans 700 and 750 . That is, the outdoor blower unit 600 is provided with a drain seating groove 614 on which the bottom of the main drain pan 700 is partially disposed. The outdoor blower unit 600 is provided at the front surface

Form coupling flange 615.

That is, the drain seating groove 614 is recessed to have a curvature corresponding to the protrusion (see FIG. 3 ) protruding downward from the bottom surface of the main drain pan 700 , thereby supporting the load of the main drain pan 700 .

An end portion of a bottom surface of the sub drain pan 750 is coupled to a top surface of the coupling flange 615 to be supported by the coupling flange 615 . That is, the coupling flange 615 is provided with hook holes 616 at the top surface, and the sub-drain pan 750 is provided with a pair of coupling hooks 752 at the front end.

The coupling hooks 752 are rectangular plates spaced apart from each other. The distance between the front and rear surfaces of the coupling hook 752 corresponds to the width of the hook hole 616 . The hook protrusion 754 extends from the lower end of the rear surface of the coupling hook 752 .

Therefore, when the coupling hook 752 is inserted in the hook hole 616, the hook protrusion 754 penetrates into the hook hole 616 and is fixed. Accordingly, the sub-drain pan 750 is supported on the top surface of the coupling flange 615 .

The top surface of the coupling flange 615 is inclined downward as it goes backward so that the condensed water flowing along the bottom surface of the sub drain pan 750 falls through the hook hole 616 . That is, in a state in which the sub-drain pan 750 is fixedly coupled to the coupling flange 615, when the condensed water falls from the sub-drain pan 750 onto the first heat exchanger 510, part of the condensed water falls along the sub-drain pan. The bottom surface of 750 flows rearwardly and leads into the top surface of coupling flange 615 . In order to direct the condensed water backward, the top surface of the coupling flange 615 is sloped.

Accordingly, a hook hole 616 may be formed at a rear end of the top surface of the coupling flange 615 .

A drop water guide 617 protrudes from a left end portion of the top surface of the coupling flange 615 . A drop water guide 617 is provided to prevent condensation water flowing backward along the top surface of the coupling flange 615 from falling leftward.

Therefore, the condensed water collected on the top surface of the coupling flange 615 can fall only through the hook hole 616 . When the amount of condensed water collected on the top surface of the coupling flange 615 increases without being discharged through the hook hole 616 , the condensed water is guided by the falling water guide 617 to fall onto the first heat exchanger 510 .

Meanwhile, the coupling flange 615 functions to prevent the movement of the first heat exchanger 510 by receiving and fixing the surface of the first heat exchanger 510 . That is, the coupling flange 615 has a size corresponding to the first heat exchanger 510 , and coupling portions 618 are formed on left and right side surfaces of the coupling flange 615 .

The coupling part 618 is coupled to a side surface of the first heat exchanger 510 through a coupling member. Coupling portions 618 are formed at a plurality of positions on upper and lower portions of left and right side surfaces of the coupling flange 615 . A plurality of holes (not shown) are formed on the side surface of the first heat exchanger 510 to correspond to the coupling portion 618 .

Accordingly, the coupling portion 618 is coupled to the hole by the coupling part S, and the outdoor blower unit 600 is fixedly coupled to the first heat exchanger 510 . The coupling flange 615 is provided at the inner surface with a plurality of spaced protrusions (619 of FIG. 16 ) extending to abut the front surface of the lower aperture 610 . The spacing protrusion 619 supports the first heat exchanger 510 such that the first heat exchanger 510 maintains a state of being spaced apart from the lower orifice 610 . The front end of the spacing protrusion 619 is designed to contact the first heat exchanger 510 .

Accordingly, when the first heat exchanger 510 is inserted in the coupling flange 615 , the first heat exchanger 510 contacts the spacing protrusion 619 to be spaced apart from the front surface of the lower aperture 610 . The first heat exchanger 510 is fixed in a state where it is spaced apart from the outdoor blower unit 600 by the coupling portion 618 coupled to the hole by the coupling member. Meanwhile, a discharge grill 652 is provided in a discharge guide 650 provided with a grill fixing groove 654 for fixing the discharge grill 652 .

The grill fixing groove 654 receives a portion of the outer circumference of the discharge grill 652 to prevent vertical movement of the discharge grill 652 . The discharge grill 652 is provided at the outer circumference with a plurality of grill protrusions 653 for allowing the discharge grill 652 to be fixed in the grill fixing groove 654 . The grill protrusion 653 is formed to correspond to the grill fixing groove 654 . The assembly of the lower aperture 610 with the lower air guide 620 takes place by fitting the lower aperture 610 as shown in FIG. 8 .

Referring to FIG. 15 , describing the outer structure of the lower air guide 620 , reinforcing ribs 624 formed in a grid shape extend from the surface of the lower air guide 620 . The reinforcement rib 624 reinforces the front thickness of the lower air guide 620 to improve the strength of the lower air guide 620 .

A lower motor 660 and a lower motor supporter 670 are coupled to the front surface of the lower air guide 620 . The lower motor supporter 670 receives the lower motor 660 at an upper portion thereof, and a lower end of the lower motor supporter 670 is seated on the top surface of the chassis 500 .

Accordingly, the top surface of the chassis 500 contacting the bottom surface of the lower motor supporter 670 supports the relatively heavy load of the lower motor 660 . Therefore, there is a need for a structure to withstand the heavier lower motor 660 .

That is, the support seating portion 509 is formed to extend from the front half of the top surface of the chassis 500 . The support seating part 509 is larger than the lower motor support 670 to support the load of the lower motor 660 .

The support placement portion 509 is provided with a plurality of support coupling grooves (509' in FIG. 8). The supporter coupling groove 509 ′ is a portion to which a coupling part passing through the lower end of the lower motor supporter 670 is coupled to couple the lower motor supporter 670 to the chassis 500 .

A plurality of supporter coupling grooves 624 ′ are provided on the front central portion of the lower air guide 620 around the lower motor hole 622 . The supporter coupling groove 624 ′ provides a place where the lower motor supporter 670 is coupled to the lower air guide 620 , and is arranged along a circle concentric with the lower motor hole 622 .

Therefore, when the supporter coupling groove 624' and the supporter coupling groove 509' are coupled to the upper portion and the lower end of the lower motor supporter 670, the front surface of the outdoor blower unit 600 is completely fixed on the chassis 500.

Meanwhile, the chassis 500 is provided at the top surface with a structure for fixing and supporting the lower part of the angle steel 580 and the bracket 570 on the chassis 500 .

That is to say, as shown in FIG. 14 , the chassis 500 is provided with a forwardly recessed angle steel installation groove 586 at the corner of the right end. The lower end of the supporting angle steel 580 is placed on the angle steel setting groove 586 corresponding to the cross-sectional shape of the supporting angle steel 580 .

A pair of angle iron fixing holes 588 are formed through the front and right sides of the angle iron seating groove 586 . The base coupling portion 584 is coupled to the angle fixing hole 588 by a coupling member such as a screw. That is, like the base coupling portion 584, the angle fixing hole 588 is formed so that the angle fixing hole 588 formed on the front side is higher than the angle fixing hole 588 formed on the right side.

Therefore, when the lower end of the support angle 580 is inserted into the angle seating groove 586, the base coupling portion 584 and the angle fixing hole 588 are arranged concentrically so that they can be interlocked by the coupling part.

Bracket supports 575 extend from front and rear portions of the right top surface of the chassis 500 to support a lower end of the bracket 570 .

That is to say, the bracket support member 575 includes a bracket front end support part 575 ' for fixing the front end lower side of the bracket 570, and a pile rear end support part 575 " for fixing the lower part of the rear end. The front end support part 575 ' of the bracket and The pile rear end support portions 575" are symmetrical to each other.

形状形成，并且支桩后端支撑部分575″以

形状形成。因此，支架570的下端，即基座配合部分578，插入在与其中形成支架前端支撑部分575′和支桩后端支撑部分575″的纵向方向间隔开的右侧中。In more detail, when viewed from the top, the front end support portion 575' of the bracket is

The shape is formed, and the supporting part of the pile rear end is 575″ to

shape formed. Accordingly, the lower end of the bracket 570, ie, the base fitting portion 578, is inserted in the right side spaced from the longitudinal direction in which the bracket front end support portion 575' and the pile rear end support portion 575'' are formed.

A plurality of seating guides 577 are provided on the right surface of the stand supporter 575 . The installation guide 577 is provided so that the bracket 570 is easily inserted into the right side of the bracket supporter 575 and guides the installation position of the bracket 570 .

That is, the seating guides 577 protrude rightward from the right surface of the stand supporter 575 and are spaced apart from each other in the front-rear direction. Each of the placement guides 577 increases in width as it goes down from the upper end of the bracket support 575 . That is, the right end of the placement guide 577 is inclined. The distance from the right end of the seating guide 577 to the right surface of the chassis 500 increases as it goes upward from the bottom surface of the chassis 500 . Therefore, interference can be minimized when the base fitting portion 578 of the bracket 570 is inserted into the right side of the seating guide 577 . During insertion, the lower end of the base fitting portion 578 is guided along the inclined right end of the seating guide 577 to be seated on the top surface of the chassis 500 .

A plurality of bracket contact portions 577 ′ recessed leftward and having a rectangular shape are provided on the right surface of the chassis 500 . The bracket contact portion 577 ′ has an upper end contacting an upper portion of the bracket coupling portion 579 to support the load of the bracket 570 .

That is, two bracket contact parts 577' are formed at the right side of the bracket support part 575', and one bracket contact part 577' is formed between the two bracket contact parts 577'. That is, a total of three bracket contact portions are provided.

The height of the bracket contact portion 577 ′ corresponds to the height of the bracket coupling portion 579 . Accordingly, when the bracket coupling portion 579 contacts the top surface of the chassis 500 , the bracket contact portion 577 ′ contacts the bottom surface of the bracket coupling portion 579 to support the bracket 570 .

The bracket contact portion 577' is provided with a structure for locking the base engaging portion 578 mated between the bracket support 575 and the bracket contact portion 577'. That is, the bracket contact portion 577' is provided with a bracket fixing portion 577'' at the right surface.

The bracket fixing part 577 ″ guides the insertion of the coupling part. The left end of the insertion coupling part is coupled to the bracket coupling part 579 of the bracket 570 .

Also, when the bracket 570 is coupled by the coupling member and contacts the left surface of the bracket contact portion 577', the left surface of the bracket 570 should not be spaced apart from the seating guide 577. Referring to FIG.

That is, the left surface of the bracket contact portion 577 ′ is designed such that the distance from the left surface thereof to the right surface of the lower end of the seating guide 577 corresponds to the thickness of the bracket coupling portion 579 .

20 and 21 are front and rear perspective views of a front frame according to an embodiment of the present invention.

20 and 21, the front frame 100 is formed in a grid shape having a plurality of rectangular openings. A reinforcement panel may be further installed on the rear surface of the front frame 100 . The reinforcing panels function as sound insulating or sound absorbing parts or as moisture (condensate) absorbing parts.

In more detail, the front frame 100 is provided with a plurality of panel hook holes 130 . Panel hooks (not shown) formed on the rear edge of the front panel 200 are inserted into the panel hook holes 130 . Panel hook holes 130 are formed along the front edge of the front frame 100 .

The front frame 100 is provided with a plurality of panel coupling parts 132 . That is, three panel coupling parts 132 are formed on the upper end of the grill installation opening 102 at predetermined intervals, and three panel coupling parts 132 are formed on the lower end of the grill installation opening 102 at predetermined intervals. Also, three panel coupling parts 132 are horizontally formed on the lower end of the front frame 100 at predetermined intervals. The panel coupling portion 132 is a portion through which coupling members (not shown) such as screws pass. Accordingly, a panel coupling hole 132' is formed in a central portion of the panel coupling part 132 to allow a coupling member to be inserted and passed through the panel coupling hole 132'.

Also, an auxiliary coupling part 134 is further formed on the front frame 100 . The auxiliary coupling part 134 is formed in the same shape as that of the panel coupling part 132 , but the formation position of the auxiliary coupling part 134 is different. That is, the auxiliary coupling portion 134 is preferably formed at a central portion of the front frame 100 . In more detail, two auxiliary coupling parts 134 are formed at left and right sides of the lower half of the front frame 100 .

The auxiliary coupling part 134 serves as auxiliary coupling means together with the auxiliary coupling protrusion 224 of the front panel 200 . The auxiliary coupling means is selectively used depending on the weight of the front panel 200 . That is, in a case where a heavy part such as glass is further mounted on the front side of the front panel 200, the auxiliary coupling means is used to allow the front panel 200 to be more firmly fixed on the front frame 100.

Accordingly, a coupling part such as the panel coupling part 132 passes through the auxiliary coupling part 134 .

A plurality of frame coupling parts 140 are formed on lateral sides and an upper rear end of the front frame 100 . The frame coupling portion 140 is a portion to which a coupling member (not shown) such as a screw is coupled, and is formed at a position corresponding to the frame coupling protrusion 370 of the rear frame 300 . Accordingly, when the coupling member passes through the frame coupling protrusion 370 and is coupled to the frame coupling part 140, the rear frame 300 and the front frame 100 are coupled to each other. Screw grooves to which coupling members such as screws are coupled are formed in central portions of the plurality of frame coupling parts 140 .

形状(当从上侧看时)形成。因此，后框架300的边缘插入在联接引导肋142与前框架100之间的间隙中。A plurality of coupling guide ribs 142 protrude inwardly from a lateral rear end of the front frame 100 . The coupling guide rib 142 is intended to guide the assembly of the front frame 100 and the rear frame 300, and to or

The shape (when viewed from the upper side) is formed. Accordingly, the edge of the rear frame 300 is inserted into the gap between the coupling guide rib 142 and the front frame 100 .

或

形状(当从上侧看时)形成。A pair of drain coupling parts 144 protrudes inwardly from lateral sides of the front frame 100 . The drain coupling part 144 protrudes inwardly from both lateral sides of the front frame 100 so as to be symmetrical to each other, and in a

or

The shape (when viewed from the upper side) is formed.

The drain coupling part 144 allows the front frame 100 to be coupled to the main drain pan 700 using a coupling part. Accordingly, a drain coupling hole 144' is formed in a rear end of the drain coupling part 144 to pass through the drain coupling part 144 so that a coupling member such as a screw passes through the drain coupling hole 144'.

Also, referring to FIG. 21 , the frame coupling part 140 is integrally formed with the inner side of the drain coupling part 144 .

或

形状(当从上侧看时)形成。A pair of base coupling parts 146 protrudes inwardly from a laterally lower end of the front frame 100 . The base coupling part 146 protrudes inwardly from both sides of the front frame 100 so as to be symmetrical with respect to each other, and as in the drain coupling part 144

or

The shape (when viewed from the upper side) is formed.

The base coupling part 146 is intended to allow the front frame 100 and the chassis 500 to be coupled to each other using coupling parts such as screws. Accordingly, a base coupling hole 146' is formed in a rear end of the base coupling part 146 to pass through the base coupling part 146 so that a coupling part such as a screw passes through the base coupling hole 146'.

Also, the frame coupling part 140 is integrally formed with the inner side of the base coupling part 146 as in the drain coupling part 144 .

A plurality of air guide coupling parts 148 are formed at an upper rear end of the front frame 100 . The air guide coupling member 148 is intended to couple the upper air guide 810 to the front frame 100 . Three air guide coupling parts 148 are formed at a lower side of the upper rear end of the front frame 100 at predetermined intervals. An air guide coupling hole 148' is formed in the air guide coupling part 148 to pass through the air guide coupling part 148 so that a coupling part such as a screw passes through the air guide coupling hole 148'.

The louver installation parts 106 are respectively formed on both sides of the grille installation opening 102 . The louver mounting portion 106 is a portion at which both ends of the louver 110 are mounted and supported, and is formed in a semicircular shape protruding forward in a circular shape.

Also, the louver mounting groove 108 is recessed from the inner lateral side of the louver mounting portion 106 in the lateral direction. The louver rotation shaft 111 of the exhaust louver 110 is inserted into the air hole installation groove 108 . A louver mounting groove 108 is formed in each of lateral sides of the pair of louver mounting portions 106 . The front side of at least one of the two louver installation grooves 108 is preferably open to allow easy installation of the louver rotation shaft 111 .

A louver motor (not shown) that supplies rotational power to the exhaust window 110 is installed in at least one of the pair of louver mounting portions 106 formed at both ends of the grille mounting opening 102 .

A louver supporter 150 is integrally formed at a central portion of the grill installation opening 102 . The louver supporter 150 is vertically formed to support a central portion of the exhaust window 110 .

The louver supporter 150 includes a connection portion 152 vertically installed across the grill installation opening 102 , and a stopper 154 extending forward from a central portion of the connection portion 152 . Also, upper and lower ends of the stopper 154 contact the slot front side 114 ′ and the slot lower side 114 ″ of the exhaust hole 110 to limit the rotational range of the exhaust window 110 .

22 and 23 are top and bottom perspective views, respectively, of a main drain pan in accordance with an embodiment of the present invention.

22 and 23, as described above, the main drain pan 700 has an approximately quadrangular appearance, and is installed on the central portion between the front frame 100 and the rear frame 300 to divide the space formed by the front and rear frames 100 and 300 into an upper part and a lower part.

A plurality of bottom partition ribs 702 are formed on the upper surface of the main drain pan 700 as indicated. The bottom partition rib 702 allows a plurality of cavities to be formed on the upper surface of the main drain pan 700, thereby forming a space through which condensed water can flow.

In more detail, a plurality of bottom partition ribs 702 are formed on the upper surface of the main drain pan 700 at equal intervals. These bottom partition ribs 702 are integrally formed with the main drain pan 700 and protrude upward from the upper surface of the main drain pan 700 .

The plurality of bottom partition ribs 702 allows parts such as the second heat exchanger 870 installed above the main drain pan 700 not to be in close contact with the upper surface of the main drain pan 700 , thereby forming a predetermined space. Thus, condensed water that has been generated and dropped from the second heat exchanger 870 may easily flow on the upper surface of the main drain pan 700 .

Meanwhile, the bottom partition rib 702 is inclined at a predetermined angle with respect to the front and lateral sides of the main drain pan 700 . That is, the bottom partition rib 702 has a shape inclined to the left to guide the flow of condensed water.

A plurality of bottom condensation water holes 704 are formed in the main drain pan 700 to vertically pass through the main drain pan 700 . Bottom condensate holes 704 allow condensate that has been produced and falls from the second heat exchanger 870 to move below the main drain pan 700 .

A downwardly recessed case seating groove 710 is further formed on the front half of the main drain pan 700 . The case seating groove 710 is intended to prevent interference with the upper fan case 820 formed on the upper air guide 810 . Accordingly, the case seating groove 710 is formed in an arc shape corresponding to the shape of the lower end of the upper fan case 820 so that the lower end of the upper fan case 820 is received in the upper side of the case seating groove 710 .

A plurality of groove dividing ribs 712 are integrally formed on the case seating groove 710 at equal intervals. The groove partition rib 712 is formed in a shape corresponding to that of the bottom partition rib 702 . Accordingly, the groove dividing rib 712 is formed to be inclined leftward at a predetermined angle, and protrudes upward from the upper surface of the case seating groove 710 . Also, a tank condensation water hole 714 is formed in the case seating groove 710 to vertically pass through the case seating slot 710 . The sink condensation hole 714 has the same shape as the bottom condensation hole 704 and performs the same function.

Also, a plurality of tank condensation water holes 714 are formed in the lowermost end of the housing seating tank 710 . That is, the groove condensation water hole 714 is formed in the lowermost portion of the case seating groove 710, which is recessed and rounded downward, and has an arc-shaped cross-section (when viewed from the front side). This serves to quickly drain the condensed water collected in the housing seating groove 710 to the lower side.

The upper air guide coupling portion 715 is provided at a portion spaced apart from the case seating groove 710 . The air guide coupling portion 715 is coupled to the air guide coupling block ( 818 of FIG. 25 ) to prevent the upper orifice 860 from being separated from the main drain pan 700 .

A condensed water drop guide 716 is further formed on the lower surface of the main drain pan 700 . The condensate drop guide 716 allows the condensate moving through the condensate holes 704 and 714 to the underside of the main drain pan 700 to fall quickly and directly. That is, the condensed water drop guide 716 allows the condensed water that has moved to the lower side of the main drain pan 700 to drop directly without flowing to other parts.

Accordingly, the condensed water drop guide 716 protrudes downward from the lower side of the main drain pan 700 and has a cylindrical shape. In more detail, the condensation water drop guide 716 extends downward from the condensation water holes 704 and 714 . That is, the condensed water drop guide 716 extends downward from the bottom condensed water hole 704 and the groove condensed water hole 714 , and is formed in a cylindrical shape corresponding to the shapes of the condensed water holes 704 and 714 .

Meanwhile, a plurality of grooves for avoiding interference with adjacent parts are formed in the main drain pan 700 .

In more detail, the control box installation opening 720 is formed to open on the right front end of the main drain pan 700 . The control box installation opening 720 is formed in a size and shape corresponding to the cross-section of the control box 880 . Accordingly, the control box 880 is installed vertically through the control box installation opening 720 .

For this, a control box supporting unit for supporting the control box 880 is provided on the main drain pan 700 and the control box 880 . The control box supporting unit includes a control box seating part 727 and a control box supporting part 886 .

In more detail, the control box installation opening 720 is provided with control box seating portions 727 at left and right lower ends. The control box seating portion 727 protrudes into the control box installation opening 720 . A control box support portion ( 886 of FIG. 28 ) is seated on the top surface of the control box seating portion 727 .

The control box installation opening 720 is provided at the front end with a pair of removal preventing portions 728 having a predetermined size in the vertical direction. The removal prevention portion 728 functions to prevent the control box 880 inserted in the control box installation opening 720 from being removed forward.

That is, the control box 880 restrained by the control box seating portion 727 may move forward when dropped. However, the removal preventing portion 728 fixes the front left and right ends of the control box 880 to suppress the forward movement of the control box 880 .

Therefore, the removal preventing portion 728 has a larger width than the control box seating portion 727 . A distance between the dismantling prevention parts 728 facing each other may be smaller than a front left-right length of the control box 880 . A lower fixing unit for fixing a lower end of the control box 880 is further provided on the main drain pan 700 and the control box 880 . The lower part fixing unit includes a control box lower fixing part 729 and a lower fixing part coupling hole 894 . In more detail, the control box installation opening 720 is provided at a rear portion with a control box lower fixing portion 729 protruding forward. The lower fixing portion 729 of the control box is used to more firmly install the control box 880 in the control box installation opening 720 . The lower fixed portion 729 of the control box is connected by the lower fixed portion coupling hole (894 in FIG. 28 ) and the coupling component.

Therefore, the control box 880 is seated on the control box seating portion 727 and prevented from moving forward by the dismantling prevention portion 728 , and is more firmly mounted in the control box installation opening 720 by the control box lower fixing portion 729 .

Meanwhile, a duct escape groove 722 is formed in the left rear portion of the main drain pan 700 to open in the rearward direction. The duct escape groove 722 is intended to avoid interference with the lower end of the discharge guide unit 400 . Accordingly, the duct escape groove 722 has a semicircular shape corresponding to the front end of the discharge guide unit 400 .

形状切削主排水盘700的右后边缘形成的部分。工作孔724意图用来使操作人员容易工作(例如，在维修之后)。A working hole 724 is formed in a right rear portion of the main drain pan 700 . The working hole 724 is through the

Shape cut the portion formed by the right rear edge of the main drain pan 700 . The work hole 724 is intended to allow easy work by an operator (eg, after maintenance).

形状(当从上方看时)形成。For example, the compressor 520 is installed under the right end of the main drain pan 700 . The compressor 520 is covered with a protective cover (not shown). A working hole 724 is formed to allow an operator to easily install the protective cover from above. A pipe passing groove 726 through which a coolant pipe (not shown) passes is formed in the right end of the main drain pan 700 . That is, the coolant flowing between the first heat exchanger 510, the compressor 520, and the second heat exchanger 870 flows through the coolant pipe formed by the pipe. This coolant pipe is installed vertically in the pipe passage groove 726 . The tubing passes through slot 726 as indicated in

Shapes (when viewed from above) form.

形状(当从上方看时)。A cable passing groove 730 is formed in the left front end of the main drain pan 700 . The cable passing slot 730 is a slot through which a power cable (not shown) through which an external power source is applied and a power line supplying power to the upper motor 830 pass. The cable passage slot 730 has

Shape (when viewed from above).

A power line passing groove 732 is formed in the front end of the main drain pan 700 . That is, a power line passing slot 732 is formed in the left side of the control box installation opening 720 . The power line passing groove 732 is a portion through which various power lines supplied to the compressor 520 and the condensed water pump 550 pass.

Power lines pass through slot 732 as indicated in Shapes (when viewed from above) form. A removal preventing rib 732' for preventing a power line (not shown) inserted in the power line passing groove 732 from being removed to the front side is further formed at the front end.

An auxiliary groove 734 is further formed near the right front end of the main drain pan 700 . As the power lines pass through the slot 732, the auxiliary slot 734 is also intended to guide multiple power lines. The auxiliary slot 734 is formed in a size smaller than that of the power line passing slot 732 to pass the DC power line therethrough.

形状(当从上方看时)形成，并且直流线拆除防止肋734′形成在右端处，以防止电力线拆开。Auxiliary slot 734 is shown as

A shape (when viewed from above) is formed, and a direct current line dismantling preventing rib 734' is formed at the right end to prevent the power line from being dismantled.

Drain coupling parts 736 , 737 and 739 for coupling with the sub drain pan 750 are formed on the main drain pan 700 . The drain coupling parts 736 , 737 and 739 are composed of a front drain coupling part 736 formed at the front end of the main drain pan 700 , a rear drain coupling part 737 formed at the rear end of the main drain pan 700 , and a right drain coupling part 739 .

A front drain coupling part 736 is formed at a central front end of the main drain pan 700 , and a rear drain coupling part 737 protrudes from the central rear end of the main drain pan 700 in a rearward direction. Drain coupling holes 738 through which coupling members such as screws pass are formed in central portions of the front and rear drain coupling parts 736 and 737 to pass through the front and rear drain coupling parts 736 and 737 .

Three right drain coupling parts 739 are formed at a right portion of the main drain pan 700 . That is, the right drain coupling part 739 is formed at the rear end of the main drain pan 700 , the right front end and the right rear end of the case seating groove 710 . A right drain coupling hole 739 ′ like the drain coupling hole 738 is also formed in the right drain coupling portion 739 to pass through the right drain coupling portion 739 .

形状(当从上方看时)形成。支撑角钢580从角形孔740的上方插入。An angular hole 740 is formed in the front right edge of the main drain pan 700 . The angle hole 740 is a portion through which the support angle 580 is passed and installed. Therefore, the angle hole 740 is formed in a cross-section corresponding to the support angle 580.

Shapes (when viewed from above) form. The support angle 580 is inserted from above the angle hole 740 .

The angle coupling portion 745 is recessed at the front and right side of the angle hole 740 . An angle coupling hole 745 ′ is formed through a lower portion of the angle coupling portion 745 . An angle coupling hole 745' is formed corresponding to the drain coupling portion so that a coupling member can be inserted therethrough.

The angle coupling part 745 is designed such that a part of the coupling part (for example, a screw head) coupled to the angle coupling hole 745 ′ does not protrude from the right surface of the main drain pan 700 . The depth of the angle coupling portion 745 is greater than the thickness of the screw head.

形状和

形状(当从图23中的上方看时)。在支架支撑部分742之间的距离与排水盘支撑件574的前后长度相对应(见图3)。Also, a bracket support portion 742 is formed at a portion adjacent to a right lower end of the main drain pan 700 . The bracket support portion 742 is a portion to which the upper end of the bracket 570 is coupled and supported, protrudes downward (upward in FIG. 23 ) from the lower surface of the main drain pan 700, and is formed in a pair. That is, the bracket support portions 742 are installed at predetermined intervals therebetween, and have mutually symmetrical positions as shown.

shape and

Shape (when viewed from above in Figure 23). The distance between the bracket support portions 742 corresponds to the front-rear length of the drain pan support 574 (see FIG. 3 ).

Accordingly, when the top surface of the drain pan support 574 is seated in the bracket support portion 742, forward, left, and right movement is restricted.

A plurality of bracket coupling parts 746 are provided between the bracket support parts 742 . The bracket coupling portion 746 is interlocked with support coupling holes 574' formed at predetermined intervals on the drain pan support 574 through coupling members.

To this end, the bracket coupling portion 746 is forced to correspond to the support coupling hole 574'.

Meanwhile, frame coupling portions 744 are formed in adjacent portions of left and right front ends of the main drain pan 700 . The frame coupling portion 744 is a screw groove to which coupling members such as screws are coupled to fix the main drain pan 700 to the front frame 100 .

The frame coupling part 744 is formed in a position corresponding to the drain coupling hole 144' of the drain coupling part 144 and in a shape corresponding thereto. Accordingly, the front end of the main drain pan 700 is fixed to the front frame 100 when coupled to the frame coupling part 744 after the screw passes through the drain coupling hole 144'.

The upper air guide 810 and the upper orifice 860 which are the main parts of the indoor indoor blower unit 800 will be described below with reference to FIGS. 24 and 25 .

Referring to FIGS. 24 and 25 , three front coupling parts 811 are formed on the upper end of the upper air guide 810 . The front coupling part 811 is coupled to the air guide coupling part 148 using a coupling part to fix the upper air guide 810 to the front frame 100 .

A pair of escape grooves 812 recessed downward are provided between the front coupling parts 811 . The escape groove 812 is formed to prevent interference between the front and rear frames at their coupling portions.

That is, the front frame and the rear frame are assembled with each other by coupling the frame coupling part 140 to the frame coupling protrusion 370 . Therefore, if the groove 812 is not avoided, the frame coupling protrusion 370 interferes with the upper portion of the upper air guide 810 and thus cannot be coupled to the frame coupling part 140 .

Accordingly, the pair of escape grooves 812 is formed between the front coupling portions 811 . At this time, the escape groove 812 has a width greater than the outer diameter of the frame coupling protrusion 370 so that it can be inserted into the frame coupling protrusion 370 .

The condensed water guide part 814 is provided on the front half of the top surface of the upper air guide 810 . The condensed water guide portion 814 is formed in a rectangular shape to guide the condensed water formed on the top surface thereof rearward to the left.

That is, a discharge guide part 824 through which cool air is discharged to a room is formed under the condensed water guide part 814 . When cold air encounters hot air, condensed water is generated on the condensed water guide portion 814 .

Therefore, the condensed water guide portion 814 guides the condensed water to the rear left, thereby not allowing the condensed water droplet to go forward. The reason for directing the condensed water rearward to the left is to prevent the condensed water from being directed to the control box 880 provided at the right side of the upper air guide 810 . That is, since many electronic components are installed in the control box 880, there may be a short circuit when the electronic components come into contact with water. For this reason, the rear end of the condensed water guide portion 814 is lower than the front end. The left end of the condensed water guide portion 814 is lower than the right end. Water drop prevention ribs 815 are provided on the left/right ends and front end of the dew water guide portion 814 . The water drop preventing rib 815 functions to prevent the condensed water from falling forward when a large amount of condensed water is suddenly generated on the condensed water guide portion 814 . A condensed water guide groove 816 is provided on the left rear end of the water drop prevention rib 815 . The condensed water guide groove 816 guides the condensed water guided to the left rear portion of the condensed water guide part 814 to the left side of the upper air guide 810 .

An upper motor hole 822 is formed on a front central portion of the upper air guide 810 . An upper support coupling groove 826 is formed around the upper motor hole 822 . The upper support coupling groove 826 is a portion coupled thereto through a coupling part of the upper motor support 840 . The upper supporter coupling groove 826 is formed along a circle concentric with the upper motor hole 822 .

An air guide reinforcement rib 828 is provided on a front lower portion of the upper air guide 810 to enhance the strength of the upper air guide 810 . Air guide reinforcement ribs 828 are formed on the front surface of the upper fan case 820 . In more detail, the air guide reinforcing ribs 828 are mostly formed in a grid shape. The control box upper fixing portion 829 is recessed on the left front center portion of the upper air guide 810 . The control box upper fixing portion 829 is coupled to an upper portion of the rear surface of the control box 880 provided to couple the upper portion of the control box 880 to the indoor blower unit 800 .

The control box upper fixing part 829 constitutes an upper fixing unit for coupling the upper part of the control box 880 to the upper surface of the upper air guide 810 together with the upper fixing part coupling hole ( 890 of FIG. 28 ).

The control box sub-fixing portion 829' is recessed at a portion spaced rightward from the control box upper fixing portion 829. Like the control box upper fixing portion 829 , the control box sub fixing portion 829 ′ functions to couple the upper portion of the control box 880 to the upper air guide 810 .

That is, the control box upper fixing portion 829 is configured to fix the upper center of the control box 880 , and the control box sub fixing portion 829 ′ is configured to fix the upper right side of the control box 880 .

The control box sub fixing portion 829' constitutes an upper sub fixing unit for fixing the upper right side of the control box 880 to the upper right part of the upper air guide 810 together with the upper fixing sub coupling hole (892 of FIG. 28). The upper sub-fixing unit is an auxiliary structure that can be selectively formed.

The control box upper fixing part 829 is coupled to the upper fixing part coupling hole ( 890 of FIG. 28 ), and the control box sub fixing part 829 ′ is coupled to the upper fixing sub coupling hole ( 892 of FIG. 28 ).

Therefore, when the control box upper fixing part 829 and the control box sub fixing part 829' are respectively coupled to the upper fixing part coupling hole 890 and the upper fixing sub coupling hole 892, the upper part of the control box 880 is fixed to the indoor blower unit 800, That is, on the right front side of the upper air guide 810 .

If desired, only one of the control box upper fixed portion 829 and the control box secondary fixed portion 829' may be selectively coupled.

Air guide coupling blocks 818 and orifice coupling blocks 864 for fixing the front and rear halves of the indoor blower unit 800 to the top surface of the main drain pan 700 are formed at lower portions of the front and rear surfaces of the upper air guide 810. partly on.

An air guide coupling block 818 protrudes forward from a lower left side of the upper air guide 810 and is coupled to the upper air guide coupling portion 715 by a coupling member. A port coupling block 864 protrudes from a lower left/right side of the front surface of the upper port 860 and is coupled to the upper port coupling unit 703 .

Thus, the indoor blower unit 800 maintains its upright state without being separated from the top surface of the main drain pan 700 .

Orifice coupling hooks 865 are provided on rear halves of left and right sides of the upper air guide 810 . The orifice coupling hook 865 is inserted into the hook insertion hole 869 ′ so that the upper air guide 810 may be coupled to the upper orifice 860 . Aperture coupling hooks 865 are formed on upper and lower portions of left and right sides of the upper air guide 810 .

A plurality of seating coupling grooves ( 866 of FIG. 25 ) are formed on the rear surface of the upper air guide 810 . The coupling groove 866 is arranged to guide the coupling positions of the upper port 860 and the upper air guide 810 and allow them to be coupled to each other. That is, the seating coupling groove 866 is provided with an insertion coupling protrusion ( 867 of FIG. 24 ) to guide coupling positions of the upper air guide 810 and the upper hole 860 . An air guide coupling groove 866' is provided on the center where the coupling groove 866 is placed.

Accordingly, when the air guide coupling groove 866' is coupled to the insertion protrusion hole 867' by a coupling member such as a screw, the upper air guide 810 is completely coupled to the upper orifice 860. Referring to FIG.

Meanwhile, the upper orifice 860 is provided with an upper orifice hole 862 at the center, and is formed in a circular shape. The upper aperture 860 is provided at a front surface with a contact rib 868 corresponding to the rear end of the upper fan case 820 . The contact ribs 868 contact the upper fan case 820 to prevent air leakage. The contact ribs 868 are slightly larger or smaller than the rear end of the upper fan housing 820 . Accordingly, when the upper aperture 860 is coupled to the upper air guide 810 , the contact rib 868 closes the opening of the upper fan case 820 . The contact rib 868 is provided with an insertion coupling protrusion 867 at an outer portion. The insertion coupling protrusion 867 is formed corresponding to the seating coupling groove 866 to be engaged with the seating coupling groove 866 .

The insertion coupling protrusion 867 is provided with an insertion protrusion hole 867' at the center. The insertion protrusion hole 867' is coupled to the air guide coupling groove 866' by a coupling member. That is, as shown in FIG. 24, the insertion protrusion hole 866' is coupled to the air guide coupling groove 866' by inserting the coupling member into the insertion protrusion hole 867' from the rear side of the upper opening 860.

The upper aperture 860 is provided at left and right ends of the front surface with coupling ribs 869 protruding forward with a predetermined width. The coupling rib 869 is provided with hook insertion holes 869' at upper and lower portions.

Accordingly, when the orifice coupling hook 865 is inserted in the hook insertion hole 869', the outer surface of the coupling rib 869 contacts the inner left/right surface of the upper air guide 810 to prevent air leakage.

形状，并且向前突出。安置凸缘861稍大于第二热交换器870的横截面。多个固定孔861′形成在安置凸缘861的左和右侧上。因此，在第二热交换器870安置在安置凸缘861中之后，插入在固定孔861′中的联接部件联接到第二热交换器870的侧面上，并且然后第二热交换器870牢固地固定在上部孔口860上。A seating flange 861 is provided on the rear edge of the upper aperture 860 . The second heat exchanger 870 is seated in the seating flange 861 and coupled thereto. That is, the mounting flange 861, as shown in FIG. 25, has

shape and protrude forward. The mounting flange 861 is slightly larger than the cross-section of the second heat exchanger 870 . A plurality of fixing holes 861 ′ are formed on left and right sides of the seating flange 861 . Therefore, after the second heat exchanger 870 is set in the setting flange 861, the coupling member inserted in the fixing hole 861' is coupled to the side of the second heat exchanger 870, and then the second heat exchanger 870 is firmly Fixed on the upper orifice 860.

The control box will be described in more detail below with reference to FIGS. 27 and 28 .

28 is a front exploded perspective view of a control box according to an embodiment of the present invention.

Referring to FIGS. 27 and 28 , the control box 880 includes a box body 880' formed in a cuboid shape having open front and rear sides, and a box cover 880'' closing the open front side of the box body 880'.

The rear surface of the case body 880 ′ extends rightward to form a side shield portion 881 . A curved guide portion 881 ′ is formed through the left end of the side shield portion 881 . The curved guide portion 881' has a plurality of grooves spaced apart from each other at predetermined intervals in the vertical direction. When the side shield part 881 is bent clockwise with respect to the bent guide part 881', the bent position is guided by the bent guide part 881'.

The side shield portion 881 is sized to correspond to the left side surface of the case 880'. Accordingly, when the side shielding portion 881 is bent clockwise relative to the bending guide portion 881', the side shielding portion 881 defines a right surface of the case body 880'.

Therefore, when the side shield portion 881 is in the state shown in FIG. 28, a plurality of electronic components can be efficiently mounted.

The side shield portion 881 is provided at the upper right end with a wire pull-out portion 882 recessed circularly to the left. When the side shield portion 881 is rotated clockwise to define the right side surface of the case 880', the wire pull-out portion 882 is located on the front end.

Therefore, after the electronic components are installed in the box body 880', when the wires connected to the electronic components are pulled out through the right side of the box body 880', and the side shield part 881 is pivoted, the wires can be inserted into the wires drawn out. within section 882.

The side shield portion 881 is provided with shield portion coupling holes 883 at upper and lower ends. The shield part coupling hole 883 is formed to maintain a bent state when the side shield part 881 is bent to close the right side of the case body 880'. The shield part coupling hole 883 is coupled to a shield part detent hole 883' formed on the right side of the upper and lower surfaces of the case 880'.

A plurality of body flanges 884 are provided on the left front end of the case body 880 ′ and the right side end of the side shield part 881 . Body flanges 884 are provided to allow the case 880 ′ to be coupled to the case cover 880 ″ by coupling means such as screws. Some of the body flanges 884 are provided with cover detent holes 885 .

The cover catch hole 885 is coupled to the body coupling hole 889 to stop the case cover 880", so that the case cover 880" cannot be separated from the case body 880'.

The box body 880 ′ is provided with a rectangular control box support portion 886 at a lower portion of the left side surface, and the side shield portion 881 is provided with a rectangular control box support portion 886 at a front lower portion of the side shield portion 881 . The control box support portion 886 interferes with the top surface of the control box seating portion 727 so that the control box 880 remains in a fixed position inside the control box mounting opening 720 .

That is, the control box support part 886 provided at the lower part of the left side surface of the box body 880' is formed to have a lower end protruding outward, and the control box support part 886 provided on the front lower part of the side shield part 881 is formed. having a rearwardly protruding lower end.

Therefore, since the control box supporting portion 886 is located at the left and right ends of the box body 880 ′, the control box seating portion 727 interferes with the control box supporting portion 886 when the control box 880 is inserted downward from the removal preventing portion 728 .

The case 880' is provided with a capacitor exposure hole 887 at the bottom. The capacitor exposure hole 887 is a portion in which a capacitor (887' of FIG. 27) functioning as a low-capacity battery by accumulating charges is inserted. The capacitor exposure hole 887 has an inner diameter corresponding to the outer diameter of the capacitor 887'.

Accordingly, when the upper part of the capacitor 887' is inserted downward in the capacitor exposing hole 887 after the lower part of the capacitor 887' is inserted in the capacitor exposing hole 887, the capacitor 887' is exposed outside the control box 880.

This is to use the air flow created under the main drain pan 700 to cool the capacitor 887'.

Meanwhile, a plurality of cover flanges 888 are provided on the outer end of the case cover 880″. The cover flanges 888 are provided to surround the left/right side surfaces of the case body 880′ when the case body 880′ is coupled to the case cover 880″. and the front half of the upper/lower surface. A cover flange 888 formed on the upper end of the tank cover 880'' is provided with a cover insertion protrusion 888' at the center of the rear end.

The cover insertion protrusion 888' fits in the insertion protrusion receiving portion 888" formed on the top surface of the case body 880', and functions to stop the upper end of the case cover 880" to prevent the case cover 880" from falling.

The case cover 880″ is provided with five body coupling holes 889 at the front lower portion. The body coupling holes 889 are coupled to the cover stopper holes 885 and formed at positions corresponding thereto, allowing the case cover 880″ to be coupled to the case body 880′ superior.

Meanwhile, the box body 880' is provided with an upper fixing portion coupling hole 890 at a central portion of the inner wall. The upper fixing portion coupling hole 890 is coupled to the control box upper fixing portion 829 by a coupling member, allowing the control box 880 to be fixed to the upper air guide 810 .

A sub fixing part coupling hole 892 is formed on the right side of the upper fixing part coupling hole 890 .

The sub-fixed portion coupling hole 892 is formed corresponding to the control box sub-fixed portion 829', and is a portion to which a coupling member is coupled. The upper right side of the control box 880 is fixed on the front surface of the upper air guide 810 .

The case is provided with a lower fixing portion coupling hole 894 at the inner lower portion. A lower fixing part coupling hole 894 is provided to allow a lower part of the control box 880 to be fixed to the main drain pan 700, coupled to the control box lower fixing part 729 by a coupling member.

The operation of the air conditioner according to the present invention will be described below with reference to FIG. 29 .

First, the flow of coolant and air in the air conditioner according to the present invention will be described.

Although the air conditioner can be used for cooling and heating, description will be made on a case where the air conditioner is used for cooling.

The first heat exchanger 510 functions as a condenser, and the second heat exchanger 870 functions as an evaporator. Also, a coolant pipe (not shown) is connected between the compressor 520, the first heat exchanger 510, and the second heat exchanger 870 to guide the flow of the coolant.

Accordingly, when the gas coolant from the compressor 520 is compressed into high temperature and high pressure coolant, and flows into the first heat exchanger 510, the first heat exchanger 510 exchanges heat with external air to condense the coolant.

Thereafter, the condensed coolant expands while it passes through an expansion valve (not shown), and flows into the second heat exchanger 870 . The coolant that has flowed to the second heat exchanger 870 exchanges heat with external air to be evaporated. Therefore, the coolant becomes gaseous. At this time, the liquid coolant also remains, so that the two-phase coolant actually mixes and exists.

The coolant passes through the accumulator 530 and is sent back to the compressor 520 to complete the coolant cycle.

Meanwhile, the air exchanges heat while it passes through the first and second heat exchangers 510 and 870 . This process is described with reference to FIGS. 1 , 2 , and 29 .

指示)。在这时的空气流动基本上由下部风扇630产生。就是说，当下部电机660由从外部施加的电源驱动时，连接到下部电机660的轴上的下部风扇630转动以产生空气流动。First, the air flow at the radiating side (underside of the main drain pan) is described (shown in FIG. 29 by

instruct). The air flow at this time is basically generated by the lower fan 630 . That is, when the lower motor 660 is driven by the power applied from the outside, the lower fan 630 connected to the shaft of the lower motor 660 rotates to generate air flow.

Accordingly, air from the rear side flows in through the lower grill 330 formed in the lower half of the rear frame 300 . The air flowing to the front through the lower grill 330 changes its direction to flow to the left and pass through the first heat exchanger 510 .

The temperature of the air passing through the first heat exchanger 510 increases. That is, since the first heat exchanger 510 functions as a condenser, the air receives heat from the coolant flowing through the first heat exchanger 510 to become high temperature air.

The high-temperature air having passed through the first heat exchanger 510 passes through the lower orifice hole 612 to flow into the central portion of the lower fan 630 . The air that has flowed into the central portion of the lower fan 630 flows radially as the fan 630 rotates, and is guided and discharged upward by the discharge guide 650 .

The high-temperature air guided upward by the discharge guide 650 is completely discharged outside the building through the discharge guide unit 400 .

Next, describe the air flow generated at the heat-absorbing side (upper side of the main drain pan) (represented in Figure 28 by instruct). The air flow at this time is basically generated by the upper fan 850 . That is, when the upper motor 830 is driven by the power applied from the outside, the upper fan 850 connected to the shaft of the upper motor 830 rotates to generate air flow.

Accordingly, the air of the indoor space flows into the inside (front side) through the intake grill 310 formed in the upper half of the rear frame 300 . The air flowing in through the intake grill 310 sequentially passes through the pre-filter 320 and the deodorizing filter 322, thereby removing impurities or bad smell contained in the air.

The air that has passed through the pre-filter 320 and the deodorizing filter 322 exchanges heat with the second heat exchanger 870 while it passes through the second heat exchanger 870 . That is, since the second heat exchanger 870 functions as an evaporator, the air passing through the second heat exchanger 870 is cooled by exchanging heat with the coolant flowing through the second heat exchanger 870 .

The low-temperature air that has passed through the second heat exchanger 870 flows to the front through the upper orifice hole 862 , and flows into the central portion of the upper fan 850 . The air that has flowed into the central portion of the upper fan 850 is radially discharged as the upper fan 850 rotates. Air is directed into an upward flow by the upper fan housing 820 .

Air flowing upward from the upper fan case 820 moves to the front through the discharge guide part 824 of the upper air guide 810 to pass through the exhaust window 110 . The low-temperature air passing through the exhaust window 110 is exhausted to the front of the exhaust hole 210 to cool the indoor space. Meanwhile, the direction of air passing through the exhaust window 110 may be changed by a plurality of ribs formed on the exhaust window 110 .

At this time, the cold air discharged through the discharge hole 210 encounters the hot air above the condensed water guide part 814 to generate condensed water. The condensed water flows to the left rear of the condensed water guide portion 814 (see FIG. 24 ).

Then, the condensed water falls to the left side of the indoor blower unit 800 . In addition, even when the amount of condensed water increases sharply, the condensed water cannot fall forward through the water drop preventing ribs 815 formed on the front end and left and right ends of the condensed water guide portion 814 .

The power cable C on the top surface of the chassis 500 using the cable fixing part 590 will be described below with reference to FIGS. 8 to 13 .

First, one of the plurality of receiving spaces 596 is selected according to the thickness of the power cable C, and the power cable C is inserted in the second receiving space 596" when it is relatively thick, and inserted in the first receiving space when it is thin. 596' in.

After the above, as shown in FIG. 12 , the cable fixing member 590 is inclined to the right, and in this state, the fixing member hook protrusion 599 is inserted in the fixing member hook hole 506, after which the fixing member hook protrusion 599 is moved counterclockwise. turn.

At this time, the top surface of the fixing member hook protrusion 599 contacts the bottom surface of the cable seating portion 504 to be braked. The cable seating portion 504 is reinforced and supported by seating portion reinforcing ribs 504'.

The lower end of the pressing protrusion 594' presses the upper portion of the outer circumference of the power cord C downward.

Then, the coupling part S is inserted into the coupling hole 593 , and the lower end of the coupling part S is coupled to the fixing part coupling hole 505 .

Through the above-described process, the fixing of the power cable C using the cable fixing member 590 is completed. After that, the power cable C pulled out to the rear of the cable fixing part 590 is guided to the cable guide 508 and exposed to the outside of the air conditioner through the cable exposure groove 508'.

When the cable fixing part 590 is in a detachable state from the cable seating part 504 by releasing the coupling part S, the power supply cable C fixed by the above process is unstable.

The process for fixing the outdoor blower unit 600 to the chassis 500 will be described below with reference to FIGS. 14 to 19. FIG.

From the state shown in FIG. 16 , after the lower fan 630 is located in front of the lower air guide 620 , the lower motor 660 moves forward from the lower air guide 620 and is inserted in the lower motor hole 622 .

After the above, the lower motor 660 is axially coupled to the lower fan 630, and the discharge grill 652 is located in the discharge guide. At this time, the grill protrusion 653 formed on the outer circumference of the discharge grill 652 is inserted into the grill fixing groove 654 .

When the lower fan 630, the lower motor 660, and the discharge grill 652 are previously fixed to the lower air guide 620, the lower orifice 610 is coupled to the front of the lower air guide 620 using a coupling member.

After the outdoor blower unit 600 is erected as illustrated in FIG. 14 , the insertion portion 602 is inserted into the unit seating portion 503 . At this time, the unit seating portion 503 receives the insertion portion 602 and brakes it, and thus the outdoor blower unit 600 keeps it in an upright state on the top surface of the chassis 500 .

Then, as shown in FIG. 15 , the lower motor 660 is fitted on the upper portion of the lower motor support 670 . At this time, the lower end of the lower motor support 670 contacts the top surface of the support seating part 509 .

A plurality of coupling parts are coupled to the support coupling groove 624' and the support coupling groove 509' after passing through the upper and lower ends of the lower motor support 670. Referring to FIG.

Through the above process, the outdoor blower unit 600 is supported on the chassis 500 , and at the same time, the lower motor 660 is fixed by the lower motor supporter 670 .

A coupling process of the indoor blower unit 800, the front frame, and the rear frame will be described below with reference to FIGS. 18 to 26 .

First, assemble the fully disassembled indoor blower unit as shown in FIG. 24 . That is, after the upper fan 850 is inserted into the upper fan case 820 , the upper motor 830 is inserted from the front side to the rear side to axially couple the upper fan 850 to the upper motor 830 .

After the above, the rear half of the upper motor 830 is inserted into the upper portion of the upper motor supporter 840, and the upper motor supporter 840 is coupled to the upper supporter coupling groove 826 using a coupling member such as a screw. At this time, the upper motor supporter 840 is coupled to the front surface of the upper air guide 810 .

Then, the upper aperture 860 is coupled to the upper air guide 810 . That is, the contact rib 868 is in contact with the rear end of the upper fan case 820 . Then, the orifice coupling hook 865 is inserted and fixed in the hook insertion hole 869'. At this time, the insertion coupling protrusion 867 is inserted into the seating coupling groove 866 .

Then, a coupling bolt is inserted in the insertion protrusion hole 867' and the air guide coupling groove 866' to complete the coupling of the indoor blower unit 800. Referring to FIG.

The indoor blower unit 800 is seated on the casing seat groove. At this time, the upper end of the indoor blower unit 800 is located between the air guide coupling opening and the frame coupling part 140 .

After the above, the front coupling part 811 is coupled to the air guide coupling hole to fix the upper end of the indoor blower unit 800 to the front frame, and then the air guide coupling block 818, the air guide coupling part 715, and the orifice The coupling blocks 864 are coupled to each other using coupling members such as screws, thereby fixing the lower portion of the indoor blower unit 800 to the top surface of the main drain pan 700 .

When the above assembly process is completed, the air conditioner is in the state shown in FIG. 26 after which the front end of the rear frame 300 contacts the rear end of the front frame 100 . At this time, the coupling part is inserted into the frame coupling protrusion and coupled to the frame coupling part 140, thereby completing the assembly of the air conditioner.

A process of reinforcing the strength of the air conditioner using the support angle 580 and the bracket 570 will be described below with reference to FIGS. 3 , 14 , 22 , and 23 .

First, as shown in FIG. 27 , the outdoor blower unit 600 is installed on the left side of the top surface of the chassis 500 , and the main drain pan 700 and the indoor blower unit 800 are installed on the upper part of the outdoor blower unit 600 . In this state, the bracket 570 stands up between the chassis 500 and the main drain pan 700 at the right end.

At this time, the bracket 570 is arranged with the upper end more to the right than the lower end, after which the bracket coupling portion 579 is inserted into the right side of the pair of bracket supports 575 .

At this time, since the lower end of the seating guide 577 is larger than the upper end, insertion of the bracket coupling portion 579 can be achieved. In addition, when the bracket coupling portion 579 is inserted, the guide 577 interferes with the lower end of the bracket coupling portion 579 on the right so that the right surface of the bracket coupling portion 579 contacts the left surface of the bracket contact portion 577'.

When the bracket coupling portion 579 is fully inserted into the bracket supporter 575, the upper portion of the bracket 570 is pushed leftward to rotate counterclockwise.

Then, the drain pan support 574 interferes with the bracket support portion 742, and thus cannot be rotated.

After the above, the bracket 570 supports the right end of the main drain pan 700 when the bracket coupling part 746 is fixed to the support coupling hole 574' using a coupling member such as a screw.

Next, a process of supporting the right front end of the main drain pan 700 using the support angle 580 whose lower end moves down to be inserted into the angle hole 740 in a state where the support angle 580 is vertically erected is described. The lower end of the support angle 580 is inserted into the angle installation groove 586 .

When the supporting angle is seated on the angle seating groove 586 , the lower end of the supporting angle 580 contacts the top surface of the chassis 500 . At this time, the drain coupling portion 582 and the angle coupling hole 745; and the base coupling portion 584 and the angle fixing hole 588 are arranged to correspond to each other.

At this time, upper and lower portions of the support angle 580 are coupled to the main drain pan 700 and the chassis 500 to support the load of the right front end of the main drain pan 700 when coupled by the coupling part.

The process for installing the control box 880 on the control box installation opening will be described below with reference to FIGS. 22, 24, 27, and 19.

To mount the control box 880 on the control box mounting opening 720, a plurality of electronic components are included in the box body 880' including a capacitor 887'. That is, the side shield portion 881 is coplanar with the rear surface of the control box 880, so that electronic components can be mounted in a state in which the front and right sides of the box body 880' are opened.

Specifically, the capacitor 887' is moved downward in the case 880' to be inserted in the capacitor exposure hole 887, and then the capacitor 887' is fixed at an upper portion thereof to an inner portion of the case 880'.

Since the capacitor 887' generates a lot of heat, the lower portion of the capacitor 887' is exposed through the underside of the control box 880 so that the heat is dissipated by the air flow generated by the outdoor blower unit 600.

When electronic components are mounted in the box body 880', a plurality of wires are bundled and pulled out to the right, and the rear shield portion 881 is bent. That is, since the bending guide portion 881' is provided on the left end of the side shielding portion 881, the bending portion of the side shielding portion 881 can be bent without applying a strong force. The curved side shield portion 881 defines the right side surface of the case 880'. At the same time, the wire is inserted in the wire pull-out portion 882 , and the interference with the side shield portion 881 is released.

After the above, in order to prevent the side shield part 881 from opening counterclockwise again with respect to the curved guide part 881', the shield part coupling hole 883 and the shield part detent hole 883' are coupled by screws.

The box body 880' is seated on the control box seat portion 727 when the above process is performed. In more detail, the box 880 ′ is inserted downwardly in the control box mounting opening 720 after the box 880 ′ is arranged such that the open front portion of the box 880 ′ is oriented toward the front portion 22 of the main drain pan 700 .

During the insertion of the box body 880' into the control box installation opening 720, the control box supporting portion 886 interferes with the control box seating portion 727, and through this interference, the box body 880' does not fall down and is inserted into the control box. Fit in opening 720 to span vertically across the right front side of main drain pan 700 (see FIG. 27 ).

At this time, the removal preventing portion 728 interferes with the left/right sides of the front end of the case body 880' to prevent the case body 880' from moving forward.

After the above, the upper fixed portion coupling hole 890 and the auxiliary fixed portion coupling hole 892 are respectively coupled to the upper fixed portion 829 of the control box and the auxiliary fixed portion 829' of the control box shown in FIG. The upper portion is fixed to the right side of the front surface of the upper air guide 810 .

Second, the lower portion of the box body 880' is fixed to the front surface of the main drain pan 700. Referring to FIG. That is, the lower part of the box body 880' is fixed to the main drain pan 700 by coupling the coupling member to the lower fixing part coupling hole 894 shown in FIG. 22 and the control box lower fixing part 729.

After the above process is completed, the installation of the box body 880' in the control box installation opening 720 is completed. At this time, the front of the box 880' is in an open state. Thus, the open front of the case 880' is closed by the coupling case cover 880".

That is, by inserting the cover insertion protrusion 888' in the insertion protrusion receiving portion 888", the upper portion of the case cover 880" is hooked and fixed to the top surface of the case body 880', and thereafter, by coupling the coupling member to the body On the connecting hole 889 and the cover brake hole 885, the assembly and installation of the control box 880 is completed.

Simultaneously, when maintenance is required due to the damage of electronic components installed in the control box 880, the box cover 880″ is separated. Can be separable.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present invention. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

For example, as far as the box body 880' can be selectively closed at one side surface thereof and the capacitor 887' is partially exposed to the outside of the box body 880', the side shield portion 881 and the capacitor exposure hole 887 can be formed in the box body 880. ' on any part of the

In the embodiment of the present invention, although the control box 880 is designed to straddle to the right when viewed from the front side of the main drain pan 700, the control box 880 may be designed to be in the direction of flow of air generated by the outdoor blower unit 600. across in the other direction.

Claims (14)

1. An air conditioner, comprising: The main drain pan divides the interior space of the air conditioner into upper and lower halves; Chassis, defining the appearance of the lower part of the air conditioner; an indoor blower unit installed on the upper side of the main drain pan to direct the intake and discharge of indoor air; and a control box in which are installed a plurality of electronic components controlling the operation of the air conditioner, Wherein, the control box is installed vertically through the main drain pan. 2. The air conditioner according to claim 1, further comprising a control box installation opening for receiving the control box and formed at an end of the main drain pan, wherein the control box installation opening is recessed from an outer surface of the main drain pan . 3. The air conditioner according to claim 2, wherein the control box is fixed to the indoor blower unit and the main drain pan. 4. The air conditioner according to claim 2, further comprising a control box supporting unit for supporting the control box on the main drain pan, wherein the control box supporting unit includes control boxes respectively formed on the main drain pan and the control box. Box placement part and control box support part. 5. The air conditioner according to claim 4, wherein the control box seating part is formed on both side lower ends of the control box installation opening, and protrudes toward an inside of the control box installation opening. 6. The air conditioner according to claim 4, wherein the control box supporting part protrudes outward from a side surface of the control box. 7. The air conditioner according to claim 2, wherein the control box installation opening is provided at a front end with a dismantling preventing portion for preventing the control box inserted in the control box installation opening from being separated forward. 8. The air conditioner according to claim 3, wherein the control box has a lower end fixed to the main drain pan by a lower fixing unit, and an upper end fixed to an upper air guide constituting the indoor blower unit by an upper fixing unit. 9. The air conditioner according to claim 8, wherein the lower fixing unit includes a control box lower fixing part protruding forward from a rear end of the control box installation opening, and a lower fixing part formed in a lower half of the control box Connection hole. 10. The air conditioner according to claim 8, wherein the upper fixing unit includes a control box upper fixing part formed on the right front side of the upper air guide, and an upper fixing part formed in the center of an upper half of the control box. Partial connection holes. 11. The air conditioner according to claim 10, wherein the upper fixing unit is provided at a side with an upper sub-fixing unit to selectively help firmly fix the upper end of the control box to the air guide. 12. The air conditioner according to claim 11, wherein the upper sub-fixing unit allows the right side of the upper end of the control box to be fixed to the right front side of the upper air guide, and is included in a spaced right side from the control box upper fixing part. The auxiliary fixing part of the control box formed at the part of the control box, and the auxiliary fixing part coupling hole formed on the right side of the upper fixing part coupling hole. 13. An air conditioner, comprising: the main drain pan, which divides the interior space of the air conditioner into upper and lower halves; and a control box in which are installed a plurality of electronic components controlling the operation of the air conditioner, the control box is installed vertically through the main drain pan, Wherein, the control box includes a box body in which the electronic components are installed, and a box cover for closing the open front of the box body; and The case is provided at a side with a side shield portion defining an appearance of a side surface of the case, and the side shield portion is formed at an end of the case so as to be bendable. 14. The air conditioner according to claim 13, wherein the control box is provided at a surface with a capacitor exposure hole through which the capacitor is installed.

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