KR20090010452A - Air conditioner - Google Patents

Abstract

An air-conditioner is provided that the number of component is minimized and the assembling process is simplified. An air-conditioner comprises a chassis(2) injection-molded into the synthetic resin, a front frame(10) which is combined in the front of the chassis and in which the air inlet port is formed, a heat exchanger(60) installed at the space among the chassis, a blower(50) installed at space, an exhaust unit(20) which is injection-molded into the synthetic resin while being installed at one side among the chassis and front frame.

Description

Air Conditioner

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to an air conditioner in which contact surfaces of some of a plurality of injection moldings constituting the air conditioner are corroded to minimize frictional areas.

In general, an air conditioner is a device for cooling or heating a room using a refrigeration cycle including a compressor, a condenser, an expansion device, and an evaporator.

Figure 5 is a cross-sectional view of the air conditioner according to the prior art, Figure 6 is an exploded perspective view of the air conditioner according to the prior art.

The air conditioner according to the prior art, as shown in Figures 5 and 6, is coupled to the chassis 202, the front of the chassis 202, the front air inlet 204 is formed on the front surface and the suction grill ( 206 is formed and the front frame 210, the air discharge port 208 is formed on the lower front side, the front suction grille 212 connected to the front of the front frame 210 to be rotatable, and mounted to the chassis 202 A heat exchanger 218 disposed between the motor 214, the blower fan 216 connected to the motor 214, and the blower fan 216, the air inlet 204, and the suction grille 206. It is configured to include.

The front frame 210 is provided with a pre-filter 205 for filtering foreign matter in the air sucked into the front air inlet 204.

The intake grill 212 protects the front air intake 204 and the prefilter 205, and an upper portion thereof is connected to an upper portion of the front frame 210.

A louver for forming a condensate receiver 219 for receiving condensate dropped from the indoor heat exchanger 218 and changing the left and right wind directions of the air discharged to the air outlet 208 in the lower portion of the front frame 210. A discharge grill 224 including a 220 and a vane 222 for changing the vertical wind direction is mounted.

The conventional air conditioner as described above has a chassis 202, a prefilter 205, a front frame 210, a front suction grille 212, a blower fan 216 and a discharge grille for ease of molding and light weight of each component. 224) and plastic injection molding.

In the conventional air conditioner configured as described above, when the blowing fan 216 is rotated by the driving of the motor 214, the indoor air in front of the suction grill 212 is provided with the suction grill 212 and the front air suction port. Foreign matter is filtered by the filter 205 while passing through 204, and is sucked into the space between the front frame 210 and the chassis 202.

In addition, indoor air above the front frame 210 passes through the upper surface suction grille 206 and is sucked into a space between the front frame 210 and the chassis 202.

The indoor air sucked as described above is cooled or heated by the refrigerant passing through the indoor heat exchanger 218 while passing through the indoor heat exchanger 218, and after passing through the blower fan 216, the louver 220. And it is discharged to the room through the air discharge port 208 under the guidance of the vane 222.

However, the air conditioner according to the prior art has a problem that a thermal deformation occurs when the plurality of plastic injection molding is expanded / contracted by heat during the air conditioning operation, and friction noise is generated by the deformation speed difference of the plastic injection molding in contact with each other.

In order to solve the above problems, the friction noise can be reduced by the thermal strain rate difference when a separate friction reducing member for reducing the friction between the adjacent plastic injection-molded by the adhesive material or the like. However, in this case, the number of parts and the material cost are increased due to the addition of the friction reducing member, and the process of attaching the friction reducing member is required separately, thereby delaying the entire assembly operation.

The present invention has been made to solve the above problems of the prior art, it is possible to reduce the noise between the plastic injection molding with a simple structure, to minimize the number of parts, and to provide an air conditioner with a simple assembly process. There is this.

In the air conditioner according to the present invention for solving the above problems, the synthetic resin injection molding which comes into contact with another synthetic resin injection molding among the plurality of synthetic resin injection moldings forming the air conditioner is subjected to corrosion treatment.

The corroded synthetic resin injection is subjected to surface corrosion on the mold of the plastic injection.

The air conditioner according to the present invention comprises a synthetic resin injection molded chassis; A synthetic resin injection molded front frame coupled to the front of the chassis and having an air inlet to form a space therebetween; A heat exchanger installed in the space; A blower installed in the space; It is installed on one side of the chassis and the front frame and comprises a synthetic resin injection molded discharge unit, the chassis and the front frame is at least one of the contact surface in contact with each other is subjected to corrosion treatment.

At least one of the chassis and the front frame is in contact with the discharge unit, and at least one of the contact surfaces is corroded.

The air conditioner according to the present invention configured as described above, as the contact surface of the synthetic resin injection contacting the other synthetic resin injection molding of the plurality of synthetic resin injection constituting the air conditioner, since the friction area between the contact surface of the plurality of synthetic resin injection is minimized When interposing a separate friction reducing member between a plurality of synthetic resin injection molding, the number of parts can be minimized, and the assembly process has a simple advantage.

In the air conditioner according to the present invention, since the corrosion-treated synthetic resin injection part is subjected to surface corrosion on the mold of the synthetic resin injection, the overall manufacturing process is simpler than the additional manufacturing process after the injection molding the synthetic resin injection in the mold.

In the air conditioner according to the present invention, since the chassis, the front frame, and the discharge unit which are susceptible to thermal expansion / contraction due to heat exchanged air during cooling / heating are subjected to corrosion treatment, all of the plurality of synthetic resin injection parts constituting the air conditioner are subjected to corrosion treatment. In this case, only a configuration having a greater effect due to thermal expansion / shrinkage can be efficiently eroded and a manufacturing process is simple.

Has one advantage.

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

1 is an exploded perspective view of an air conditioner according to the present invention, FIG. 2 is a cross-sectional view of the air conditioner according to the present invention, FIG. 3 is a front view of the chassis shown in FIGS. 1 and 2, and FIG. 4 is FIG. 1. And a rear view of the front frame shown in FIG. 2.

The air conditioner according to the present embodiment is one of a stand-type air conditioner, a wall-mounted air conditioner, a ceiling-type air conditioner, or an integrated air conditioner, and is limited to a wall-mounted air conditioner in which synthetic resin injections are used in consideration of weight.

 As shown in FIG. 1 and FIG. 2, the air conditioner according to the present embodiment includes: a main body 1 forming an outer appearance of the chassis 2; And a front frame 10 coupled to the front of the chassis 2 and having an air inlet 4 formed to form a space therebetween.

In addition, at least one side of the chassis 2 and the front frame 10 is provided with a discharge unit 20 for guiding the discharge of air.

The main body 1 has an air discharge port 12 formed in the lower part of the front frame 10, in particular, the bottom surface thereof, and the discharge unit 20 is located inside the main body 1, in particular, above the air discharge port 12. It is also possible to discharge the air passing through the discharge unit 20 to the outside of the main body 1 through the air discharge port 12 of the front frame 10, among the chassis 2 and the front frame 10 An opening in which the discharge unit 20 is disposed is formed in at least one lower portion, in particular, a bottom portion of the discharge unit 20 so that the discharge unit 20 is directly exposed to the outside of the main body 1, and an air discharge port is formed in the discharge unit 20 itself. In addition, the air passing through the discharge unit 20 may be directly discharged to the outside of the main body 1, hereinafter, the air discharge port 12 is formed in the lower part of the front frame 10, particularly the bottom surface, the discharge unit ( The case where 20) is provided so that it is located above the air discharge port 12 is demonstrated, for example.

The chassis 2 is integrally formed with flow path guides 5, 6 and 7 which form a flow path of a fan 54 which will be described later.

The flow path guides 5, 6 and 7 are center guides 7 between the left and right guides 5 and 6 protruding forward from the chassis 2 and the left and right guides 5 and 6, respectively. It includes.

The chassis 2 is provided with a heat exchanger supporter 8 supporting the heat exchanger 60 described later and forming an air flow path.

The air conditioner according to the present embodiment functions as a guide / supporter for supporting the heat exchanger 60 while one of the left and right guides 5 and 6 forms an air flow path, and the heat exchanger supporter ( 8) is coupled to the other one (5) of the left and right guides (5) (6).

The front frame 10 is coupled so that the rear end of each of the upper surface portion, the left surface portion, the right surface portion and the bottom portion is in contact with the front end portion of the upper surface portion, the left surface portion, the right surface portion and the bottom portion of the chassis 2.

The front frame 10 is provided with a purifying unit 8 for filtering foreign matter in the air sucked into the air inlet 4 and a grill 9 for protecting at least a portion of the air inlet 4.

The discharge unit 20 is assembled to at least one of the chassis 2 and the front frame 10 by fastening means such as a fastening member or hook means such as a hook.

The discharge unit 20 has a drain 22 which receives condensed water dropped from the heat exchanger 60, which will be described later, on the upper surface, and a drain hose 22 which guides the condensed water to the outside of the main body 1 in the drain 22. 23 is connected, and a discharge passage 24 communicating with the air discharge port 12 is formed under the drain portion 22.

The discharge unit 20 includes a vertical wind direction adjusting mechanism 26 for adjusting the vertical wind direction of the air passing through the discharge passage 24 and a left and right wind direction adjusting mechanism 28 for adjusting the left and right wind directions of the air passing through the discharge passage 24. ) Is placed.

The air conditioner according to the present embodiment is installed inside the main body 1 and the inlet panel 40 for opening and closing the air inlet 4 to suck the air through the air inlet 4 to discharge the air outlet 12 The blower 50 further includes a heat exchanger 60 for exchanging heat sucked into the body 10 with the refrigerant.

The inlet panel 40 is connected to the panel driving mechanism 42 installed in the front frame 10 and rotates forwardly around the lower portion by the panel driving mechanism, or is linearly reciprocated back and forth by the panel driving mechanism.

The blower 50 is installed in the chassis 12 so as to cover the motor 52 mounted on the motor mounting portion formed in the chassis 12, the fan 54 installed on the rotating shaft of the motor, and the motor 52. Motor cover 56.

The heat exchanger 60 is positioned between the air inlet 4 and the fan 54, and the lower end thereof is installed above the drain 22.

On the other hand, the control box 70 which is a control unit for controlling the air conditioner is installed inside the main body 1, especially around the motor 52, the control box 70 is coupled to the chassis 2 and the substrate ( The box main body 72 to which electrical components, such as 71, are installed and the at least one cover 73 and 74 which cover the box main body 72 are included.

Meanwhile, as shown in FIGS. 1 and 2, the air conditioner according to the present embodiment includes a plurality of components 2, 10, 20, 40, 52, and 54 of a plurality of components constituting the air conditioner. Synthetic resin injection molding (2) (10) of which most of the components except for the heat exchanger (60) and the motor (52) of the blower (50) among the (56) (60) and (70) are injection molded from a synthetic resin such as plastic (2) (10) (20) (40) (54) (56) (70), and each of the plurality of synthetic resin (2) (10) (20) (40) (54) (56) (70) In contact with the synthetic resin injection moldings 2, 10, 20, 40, 56 and 70, the contact surface is corroded.

Here, the corrosion treatment is to minimize the contact area, that is, the friction area between the plastic injection moldings (2), (10), (20), (40), (56) and (70) contacting each other, and each of the two contact surfaces may be corroded. In addition, only one of the two contact surfaces may be corroded, and the plastic injection moldings 2, 10, 20, 40, 56, and 70 which contact the both surfaces may be corroded to minimize the friction area between each other. It is preferred to be treated.

And, the plurality of resin injections (2) (10) (20) (40) (56) (70) are all synthetic resin injections (2) (10) (20) (40) (56) in contact with each other. The contact surfaces of 70 may be corroded, and the contact surfaces of the synthetic resin injection moldings 2, 10 and 20, which are caused to expand and contract by heat of heat-exchanged air during operation of the air conditioner, may be corroded. The contact surfaces of the synthetic resin injection moldings (2) (56) (72) (73) (74), in which expansion and contraction are caused by heat emitted from various electrical components such as the motor (52) and the substrate (71), are corroded. It is also possible, and will be described below by limiting that the contact surface of the synthetic resin injection molding (2) (10) 20, the expansion and contraction caused by the heat of the heat-exchanged air during operation of the air conditioner.

The synthetic resin injection molding products (2) (10) and (20), in which expansion and contraction are caused by heat of heat-exchanged air, are the chassis (2), the front frame (20), and the discharge unit (30). (2), the front frame 20, and the discharge unit 30 will be described by limiting only that the contact surfaces which are in contact with each other are subjected to corrosion treatment.

Here, the surface of the chassis 2, the front frame 10, and the discharge unit 20, which are corrosion-treated synthetic resin injection moldings, are to be contacted with another synthetic resin injection molding on the mold of the synthetic resin injection molding.

Hereinafter, the contact surface and the corrosion treatment of the chassis 2, the front frame 20, and the discharge unit 30 will be described in detail.

First, the chassis 2 and the front frame 10 are in surface contact with the upper end portion, the left side portion, the right side portion, and the rear end portion of the bottom portion overlapping the top portion, the left side portion, the right side portion and the bottom portion of the chassis 2, Each part of the surface contact is corroded.

That is, the chassis 2 and the front frame 10 are formed with upper contact portions 2A and 10A overlapping each other in the vertical direction at their upper surface portions, respectively, below the upper contact portions 2A and 10A. The corrosion treatment part 10A 'is formed in the upper surface of any one contact part 10A located, and the corrosion treatment part 2A' is formed in the lower surface of the other contact part 2A located above it.

In addition, the chassis 2 and the front frame 10 are each provided with lower contact portions 2B and 10B overlapping each other in the up and down direction on the lower surface thereof, and the lower contact portions 2B and 10B are provided on the lower side. Corrosion treatment part 2B 'is formed in the upper surface of any one contact part 2B located, and corrosion treatment part 10B' is formed in the lower surface of the other contact part 10B located above it.

In addition, the chassis 2 and the front frame 10 are each formed with left contact portions 2C and 10C that overlap each other in the left and right directions, and are located on the left side of the left contact portions 2C and 10C. The corrosion treatment portion is formed on the right side of any one contact portion 10C, and the corrosion treatment portion is formed on the left side of the other contact portion 2C positioned on the right side.

In addition, the chassis 2 and the front frame 10 are formed with right contact portions 2D and 10D, which overlap each other in the left and right directions, like the left side portions thereof, respectively, and are positioned on the left side, like the left side portions. The corrosion treatment portion is formed on the right side of any one contact portion 10D, and the corrosion treatment portion is formed on the left side of the other contact portion 2D positioned on the right side.

Meanwhile, the discharge unit 20 may be in surface contact with a fastening portion fastened to the chassis 2 or the front frame 10, or other portions other than the fastening portion may be in surface contact with the chassis 2 or the front frame 10. Hereinafter, a case where the drain portion 22 is in surface contact with the front frame 10 among the fastening portion and the fastening portion will be described in detail.

The front frame 10 and the drain portion 22 are formed with front contact portions 10E and 22A facing each other and overlapping back and forth, respectively, and a corrosion treatment portion 10E 'on the rear surface of the front contact portion 10C of the front frame 10. Is formed, and a corrosion treatment portion 22A 'is formed on the entire surface of the front contact portion 10C of the drain portion 22.

Looking at the operation of the present invention configured as described above are as follows.

First, in an air conditioning operation such as cooling / heating / defrosting of the air conditioner, the motor 52 is rotated to rotate the fan 54, and the indoor air is connected to the chassis 2 and the front through the air inlet 4. It is sucked in between the frames 10. The sucked air is heated / cooled by the heat exchanger 60, then guided along the flow path guides 5, 6, 7 of the chassis 1 to the passage 24 of the discharge unit 20, and the air Passed through the discharge port 4 is discharged to the outside of the chassis 2 and the front frame 10 to heat / cool / dehumidify the room.

On the other hand, the air conditioner, when the indoor air is sucked between the chassis 2 and the front frame 10 passes through and then discharged again to the outside of the chassis 2 and the front frame 10, the heat exchanger (60) The temperature of at least one of the chassis 2, the front frame 10, and the discharge unit 20 is increased / decreased by the temperature of the passed air, and the chassis 2, the front frame 10, and the discharge unit 20 ) Is molded from a synthetic resin injection molding, at least a part of which is thermally expanded / contracted, and a difference in thermal expansion / contraction speeds occurs, and the contact surfaces rub against each other. The chassis 2, the front frame 10, and the discharge unit ( 20) each of the contact surfaces is corroded, so that the contact surfaces are rubbed finely with the friction area between them minimized. That is, the chassis 2, the front frame 10 and the discharge unit 20 is minimized noise due to thermal expansion / contraction.

According to the present invention, a contact surface of a synthetic resin injection molding in contact with another synthetic resin injection molding among a plurality of synthetic resin injection moldings is corroded, thereby minimizing the number of parts than when a separate friction reducing member is interposed between the plurality of synthetic resin injection moldings. It can be used for simple air conditioners.

1 is an exploded perspective view of an air conditioner according to the present invention;

2 is a cross-sectional view of an air conditioner according to the present invention;

3 is a front view of the chassis shown in FIGS. 1 and 2;

4 is a rear view of the front frame shown in FIGS. 1 and 2;

5 is a cross-sectional view of an air conditioner according to the prior art,

6 is an exploded perspective view of an air conditioner according to the prior art.

<Explanation of symbols on main parts of the drawings>

One; Body 2: Chassis

2A, 2B, 2C, 2D: Contact 2A ', 2B': Corrosion Treatment

4: air intake 10: front frame

10A, 10B, 10C, 10D, 10E: Contact part 10A ', 10B': Corrosion treatment part

12: air discharge port 20: discharge unit

22: drain 22A: contact

22A ': Corrosion treatment part 50: Blower

60: heat exchanger

Claims (4)

An air conditioner in which a synthetic resin injection product which comes into contact with another synthetic resin injection product of a plurality of synthetic resin injection parts constituting the air conditioner has a corrosion-treated contact surface thereof. The method of claim 1, The corrosion-treated synthetic resin injection is an air conditioner, the surface of which is partially subjected to corrosion processing on the mold of the synthetic resin injection. A plastic injection molded chassis; A synthetic resin injection molded front frame coupled to the front of the chassis and having an air inlet to form a space therebetween; A heat exchanger installed in the space; A blower installed in the space; It is installed on one side of the chassis and the front frame and includes a synthetic resin injection molded discharge unit, And the chassis and the front frame are corroded to at least one of the contact surfaces in contact with each other. The method of claim 3, wherein At least one of the chassis and the front frame is in contact with the discharge unit, and at least one of the contact surfaces is corroded.

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