KR20100053335A

KR20100053335A - Air conditioner

Info

Publication number: KR20100053335A
Application number: KR1020080112395A
Authority: KR
Inventors: 이준석
Original assignee: 엘지전자 주식회사
Priority date: 2008-11-12
Filing date: 2008-11-12
Publication date: 2010-05-20

Abstract

PURPOSE: An air conditioner is provided to prevent a loss time of an operator by installing the assembly of a printed circuit board to a control unit case in order to slide and attach/detach and assembling a display assembly on the printed circuit board assembly. CONSTITUTION: An air conditioner comprises: a rear case which forms the rear outer tube of a main body and whose front side is opened; and a control unit(120) which is placed in the rear case and includes a printed circuit board assembly and a control unit case(120') which is fixed in the rear case. The printed circuit board assembly comprises a printed circuit board(132), a printed circuit board case(123b), and a terminal block(125) which is connected to the printed circuit board by a wire and is installed on the control unit case.

Description

Air Conditioner

The present invention relates to an air conditioner, and more particularly, a work time of an assembler by sliding and detaching a PCB assembly to a control unit case disposed on a rear case, and hooking and seating a display assembly to the PCB assembly. An air conditioner capable of preventing losses.

In general, an air conditioner is used to cool or heat a room or purify the air by using a refrigeration cycle of a refrigerant consisting of a compressor, a condenser, an expansion mechanism, and an evaporator to create a more comfortable indoor environment for a user. .

The separate type and the integrated type are functionally the same, but the separate type is to install the indoor heat exchanger and the indoor blower in the indoor unit and the outdoor heat exchanger and the outdoor blower and the compressor in the outdoor unit to connect the indoor unit and the outdoor unit separated from each other by the refrigerant pipe. The indoor heat exchanger, the indoor blower, the outdoor heat exchanger, the outdoor blower, and the compressor are installed in one case.

The air conditioner includes a control unit for controlling the opening degree of the refrigerant pipe connected to the heat exchanger, the blower, and a wind direction control member for controlling the wind direction of the air discharged from the indoor unit / outdoor unit.

However, the air conditioner according to the prior art has a problem that the assembly process is complicated and takes a considerable time in assembling and installing the control unit to the indoor unit or the outdoor unit.

It is an object of the present invention to provide an air conditioner that can significantly reduce the time required for assembly work of an assembling assembly and can also reduce labor.

An air conditioner according to the present invention includes a rear case having a front appearance of a main body and having a front surface opened, and a control unit disposed inside the rear case, wherein the control unit includes: a PCB; A PCB assembly including a PCB case to which the PCB is coupled, a terminal block connected to the PCB by wires, and a control unit case fixed inside the rear case, wherein the PCB assembly slides on the control unit case. It is detached.

The control unit case may include a fixed box in which a front surface is opened so that the PCB assembly is detachable, and either side of the left and right sides is opened, a front cover disposed in the open front of the fixed box, and an opening of the box. It may include a side cover disposed on one side.

In addition, the control unit case may be made of a metal material.

In addition, the PCB case, the PCB is installed, is formed integrally with the side plate portion and the front end portion of the side plate portion which is disposed in the inside of the box horizontally on one side of the open box, with respect to the side plate portion It may include a vertically extending front plate portion.

In addition, ribs protruding upward and downward are integrally formed at upper and lower ends of the side plate portion, respectively, and sliding guides may be formed in the inside of the box to guide the sliding movement of the PCB case.

In addition, the front cover is disposed in front of the front plate portion to shield the front plate portion, in front of the front cover, the terminal block is disposed, the front cover is the fixed box (so that the wire is installed through) It may be formed to a size smaller than the open front of the.

The PCB assembly may further include a terminal block cover disposed in front of the front cover and covering the terminal block.

The display unit may further include a display unit that is fastened to a hook on the upper portion of the control unit and displays information such as cooling / heating operation or clean operation of the main body.

The display apparatus may further include a front case disposed in front of the rear case and having an air inlet, a lower air outlet, and an upper air outlet, wherein the display unit includes a display assembly hooked to an upper end of the PCB case; One side of the front case facing the assembly is disposed to cover the display assembly, and may include a window for displaying the operation information of the main body by the irradiated light.

The display assembly may further include a display case hooked to an upper end of the PCB case, a display PCB installed on the display case, a display unit installed on the display PCB, and a user to manually operate the main body. It may include a run / stop switch installed in the display PCB.

In addition, the display case may be integrally formed with a contact portion which extends toward the side where the window is disposed and is in line contact with the rear surface of the window or the front case.

The display assembly may further include an elastic button member disposed between the window and the operation / stop switch and configured to switch the operation / stop switch by an external force.

In addition, the elastic button member, one end is screwed to the back of the front case, the other end is configured to switch the run / stop switch while moving between the window and the run / stop switch.

In addition, the other end of the elastic button member may be formed with a button portion protruding to the front through the button hole formed in the window.

The display unit may include a plurality of LEDs spaced apart from the display PCB.

In addition, the LED may be a color-variable LED capable of emitting at least one of various colors.

In addition, at least one of the LEDs of the display unit is an operation display unit for selectively displaying the cooling operation and heating operation of the main body, the other is a function display unit for displaying a clean operation of the main body, the operation display unit is a variable color LED It may be made of.

The apparatus may further include at least one of an anion generator disposed in an air flow path inside the main body and generating an anion or an electrostatic precipitating filter disposed inside the air inlet. (On), and off when the electrostatic precipitating filter is inactive.

In addition, an LED guide may be installed in the PCB to protect the LED and guide the light emitted from the LED.

The air conditioner according to the present invention, by sliding the detachable assembly of the PCB assembly to the control unit case disposed on the rear case, it is possible to prevent the loss of work time of the assembler by hooking and seating the display assembly to the PCB assembly. Has the effect.

Hereinafter, a preferred embodiment of an air conditioner according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of one embodiment of an air conditioner according to the present invention, FIG. 2 is an exploded perspective view of an embodiment of an air conditioner according to the present invention, and FIG. 3 is a control unit installed in a rear case of the configuration of FIG. 1. 4 is an exploded perspective view showing a control unit and a display assembly in the configuration of FIG. 3, and FIG. 5 is an exploded perspective view showing the control unit and the display assembly assembled to the rear case of FIG. 1.

As shown in FIG. 1, the air conditioner according to the preferred embodiment of the present invention is provided with an air inlet 4 for sucking indoor air in the main body 2, and air-conditioned inside the main body 2. Air discharge ports 6 and 8 through which air is discharged are formed.

The main body 2 is installed standing on the floor of the room, or a part of which is embedded in the wall or installed on the wall, the air inlet 4 and the air discharge port 6, 8 is formed in the front portion In addition, the air inlet 4 and the air outlet 6 and 8 may be formed in addition to the lower surface of the front part when the main body 2 is installed on the floor of the room.

The main body 2 is a cooling / heating air conditioner capable of selectively performing a cooling operation and a heating operation, and has a lower air discharge port at a lower portion of the front surface to discharge the warmth to the lower portion of the main body 2 during the heating operation. 6) is formed, the upper air discharge port 8 is formed in the upper portion to discharge the cold air to the upper portion of the main body 2 during the cooling operation, the lower air discharge port 6 and the upper air discharge port (8) The air intake 4 is formed at the height between the.

The main body 2 may be the upper air discharge port 8 may be formed in the upper portion of the front surface of the main body 2, may be formed on the upper surface of the front portion of the main body 2, the main body 2 It is also possible to be formed on the inclined portion 34 between the upper front and the upper surface of the. Hereinafter, an inclined portion 34 is formed between an upper surface and an upper surface of the main body 2 so that the cool air can be discharged toward the upper part of the room during the cooling operation, and the upper air discharge port 8 is formed in the inclined portion. Explain.

As shown in FIG. 2, the main body 2 includes a rear case 10 that forms a rear appearance, and is disposed in front of the rear case 10 and the air inlet 4 and the lower air outlet 6. And a front cover 30 provided with the upper air outlet 8, and a front cover 50 provided in the front case 30 so as to cover the air intake 4 from the front.

The main body 2 has a blower 60 which sucks indoor air into the air inlet 4 and passes the inside of the main body 2, and then discharges the air through the lower air outlet 6 and the upper air outlet 8. ), An indoor heat exchanger (not shown) that acts as an evaporator and a condenser while cooling or heating the air sucked into the air inlet 4 by the blower 60, and a control unit 120 that controls the air conditioner. ) Can be installed.

The rear case 10 forms a rear appearance of the air conditioner and forms an air flow path. The rear case 10 is formed in a box shape with an open front surface, and flow path forming parts 11 and 12 forming an air flow path. 13 is formed.

2 and 3, the flow path forming parts 11 and 12 and 13 may include the left flow path forming part 11, the right flow path forming part 12, and the lower flow path forming part 13. Although not shown, the upper flow path forming part may be parallel to the lower flow path forming part 13 and formed at an upper end of the left flow path forming part 11 and the right flow path forming part 12.

The flow path forming parts 11, 12 and 13 may be formed by any one of the left flow path forming part 11 and the right flow path forming part 12 between one side wall of the rear case 10. Has an installation space S1 in which the control unit 120 is installed.

In addition, when the air conditioner is fixed to the wall between the other side wall of the rear case 10, the other 12 of the left flow channel forming portion 11 and the right flow channel forming portion 12 It has a fastening space S2, such as a screw which fixes the case 10 to a wall surface.

Meanwhile, as shown in FIG. 2, the rear case 10 includes a base portion 27 forming an outer appearance of a bottom portion of an air conditioner, and an upper plate portion 28 forming an appearance of an upper surface portion of the rear case 10. More).

The front case 30 forms a front appearance of the air conditioner, and is formed in a box shape in which the rear and bottom surfaces are open, and are installed to cover the front surface of the rear case 10.

In the air conditioner according to the preferred embodiment of the present invention, the control unit 120 controls the air conditioner according to an operation or an operation / stop input of a user's remote controller or the like, as shown in FIG. (PCB: Plastic Circuit Board) 123a, the PCB case 123b to which the PCB 123a is coupled, and the terminal block 125 electrically connected by the PCB 123a and lead wires. It comprises a PCB assembly (123) consisting of.

Here, the PCB case 123b may be made of an injection molded resin material for electrical insulation.

In addition, the terminal block 125 is a collection of terminals to which lead wires electrically connected to various electrical components in addition to the lead wires are connected. In the present invention, the terminal block 125 is a component of the PCB assembly 123. To achieve.

The PCB assembly 123 having such a configuration may include at least one of the left and right flow path forming portions 11 and 12 of the rear case 10 and one side wall or the other side wall of the rear case 10. It is coupled to the control unit case 120 'disposed in the installation space (S1) formed in the.

Here, the control unit case 120 'is fixed to the installation space (S1) by a fastening member such as a screw, and the left and right so that the PCB assembly 123 is detached in an operation of moving from the front to the rear. A fixing box 121 having one side and a front surface of the side surface opened, a front cover 122 disposed to block a portion of the front lower side of the fixing box 121, and a side surface and the front surface of the fixing box 121. In addition to the lower portion of the front side of the fixed box 121 shielded by the cover 122 includes a side cover 124 disposed to block the upper portion of the front opening.

The fixed box 121, the front cover 122, and the side cover 124 may be exposed to a fire hazard due to sparks of the PCB assembly 123 and the HVB 127, which will be described later, disposed inside the box 121. In order to prevent the metal material is preferred.

The side cover 124 is, as described above, the side plate portion 128 covering the open side of the fixed box 121, and the front upper plate portion 129 covering the opened front upper portion of the fixed box 121. ).

The side plate portion 128 covers and covers the side surface of the fixed box 121 that is opened, and a hook fastening hole 129a to which the display case 131 to be described later is hooked to the front upper plate portion 129. Wire through holes 129b are formed to penetrate the lead wires electrically connecting the display case 131 and the PCB 123a or the lead wires electrically connecting the terminal block 125 and the PCB 123a. Can be.

In addition, an HVB 127 is embedded in the control unit case 120 ′, and the HVB 127 is also electrically connected to the terminal block 125 disposed on the outer front surface of the front cover 122. A portion of the front lower side of the control unit case 120 ′ may be formed to be opened to connect using a wire.

Here, the terminal block 125 is installed on the front surface of the front cover 122 covering the open front surface of the fixed box 121, the operation of separating the lead wire during the troubleshooting of the control unit 120 Since the PCB assembly 123 including the terminal block 125 may be removed from the fixed box 121 without requiring a process, it is easy to diagnose a failure and the like.

That is, in a preferred embodiment of the air conditioner according to the present invention, the lead connected between the terminal block 125 or the display case 131 and the PCB 123a to repair the failure of the control unit 120 Since the PCB assembly 123 can be separated from the box 121 without separate wires, the operation is easy.

However, in the embodiment of the air conditioner according to the present invention, the front cover 122 as described above so that one surface of both the front and left and right sides of the fixed box 121 is necessarily opened, and to block one surface of the opened front and left and right sides. ) And the side cover 124 need not be configured. That is, according to the exemplary embodiment, only the front cover 122 may be provided such that the fixed box 121 opens only the front surface and blocks only the opened front surface. However, hereinafter, for the convenience of description, an embodiment of the case in which the side cover 124 is provided, which is a preferred embodiment of the present invention, will be limitedly described.

The PCB assembly 123 configured as described above is slidably attached to the inside of the fixed box 121. Here, the PCB case 123b is provided with the PCB 123a, and the side plate portion 123b 'and the side plate portion 123b which are disposed inside the box horizontally on one side of the opened box 121. It is formed integrally with the front end portion of '), and includes a front plate portion 123b "extending perpendicular to the side plate portion 123b'.

As described above, the front cover 122 of the control unit case 120 'is fixed to a front surface of the front plate part 123b ″ by a fastening member such as a screw, and the front cover 122 is The terminal block 125 is fixed so that when the PCB assembly 123 is attached to or detached from the control unit case 120 ', the front cover 122 is also attached to or detached from the control unit case 120'.

Meanwhile, ribs 123c protruding up and down are integrally formed at upper and lower ends of the side plate portion 123b 'of the PCB case 123b so that the PCB assembly 123 slides in and out of the box 121 easily. The sliding guide 121b is formed at a position corresponding to the rib 123c so that the rib 123c is inserted into the box 121 to guide the sliding.

Meanwhile, the air conditioner according to the preferred embodiment of the present invention may further include an HVB 127 installed in the fixed box 121 and applying a high voltage to the electrostatic precipitating filter 114 (not shown).

Meanwhile, referring to FIG. 4, the control unit 120 is provided with a display assembly 130 for inputting various commands of the air conditioner and displaying information such as cooling / heating operation or clean operation of the air conditioner.

The display assembly 130 is hooked by a hook to the hook fastening hole 129a formed on the front top plate 129 of the side cover 124 and formed on the front top plate 129 of the side cover 124. The display case 131, the display PCB 132 installed on the display case 131 by a fastening member such as a screw, the display units 133 and 134 provided on the display PCB 132, and an air conditioner. The remote controller may include a remote controller receiver 136 for receiving a signal transmitted from a remote controller for remote control, and an operation / stop switch 137 for driving / stopping the air conditioner.

The display case 131 is integrally formed with a window 140 to be described later or a contact portion 131a which is in line contact with an inner surface of the inclined portion 34 of the front case 30. Since the contact portion 131a of the display case 131 is linearly contacted with the window 140 or the inclined portion 34, the contact portion 131a is seated in the hook fastening hole 129a without shaking, and thus, inevitably occurs during operation of the air conditioner. There is an advantage that can prevent the noise caused by vibration.

Here, the rear end of the display case 131 corresponds to the upper edge portion of the control unit case 120 'to be seated and fixed to the upper edge portion of the control unit case 120' as shown in FIG. It may be formed in a shape. When the display case 131 having such a shape is seated on the control unit case 120 ′, an upper portion of the rear portion of the display case 131 is interviewed with an upper edge portion of the control unit case 120 ′. It is seated, and below the upper portion of the rear portion of the display case 131 is interviewed to the upper edge portion of the front of the control unit case 120 'is firmly fixed.

The display units 133 and 134 may include a plurality of LEDs spaced apart from the display PCB 132.

In addition, the display units 133 and 134 may be formed of color-variable LEDs capable of emitting various colors at least one of the plurality of LEDs.

The display unit 133 or 134 is a driving display unit 133 which selectively displays cooling operation and heating operation, and when the other includes a function display unit 134 displaying clean operation, the driving display unit 133 is made of a color variable LED.

The driving display unit 134 is formed of a variable color LED, and emits a first color indicating cooling in the cooling operation, for example, blue, and a second color different from the first color displaying heating in the heating operation. For example, red light is emitted.

The function display unit 134 is turned on when the electrostatic precipitating filter is operated and turned off when the electrostatic precipitating filter is not operated.

The display PCB 132 is provided with an LED guide 135 to protect the plurality of LEDs and to guide the light irradiated from the LEDs by a hook or the like.

Meanwhile, the front case 30 covers the display assembly 130 at a position opposite to the display assembly 130 and displays information of an air conditioner by light irradiated from the LEDs 133 and 134. The window 140 is installed.

The window 140 has a button hole 141 formed at one side thereof, and is arranged to penetrate the button hole 141, and pressing the button unit 143 integrally formed at one side thereof switches the operation / stop switch 137. The elastic button member 144 is installed. Here, the button portion 143 is formed to protrude toward the front of the window 140 through the button hole 141 at the other end of the elastic button member 144.

The elastic button member 144 is fastened by a fastening member 146 such as a screw to the fastening boss 145 formed on the front case 30. More specifically, the elastic button member 144, one end is screwed to the rear surface of the front case 30 by the fastening member 146, the other end of the button portion 143 is the window 140 ) And the run / stop switch 137 to switch the run / stop switch 137.

The window 140 is formed with a light transmitting part 147 through which the signal of the remote control is transmitted at a position opposite to the remote control receiver 137.

Hereinafter, the assembling process of the air conditioner (particularly, the assembling process of the control unit 120 and the display assembly 130 to the installation space S1) according to the present invention will be described in detail with reference to FIG. 4. Is the same as

First, as shown in FIG. 4, a fastening member such as a screw is fixed to the fixing box 121 of the control unit case 120 ′ in the installation space S1 formed at one side of the rear case 10. Fix using.

Then, the PCB 123a is fastened to the PCB case 123b using a fastening member such as a screw, and the front cover 122 is screwed on the front surface of the front plate part 123b ″ of the PCB case 123b. Fix using a fastening member.

Next, the terminal block 125 is installed on the front surface of the front cover 122, and the terminal block 125 and the PCB 123a are electrically connected using a lead wire. In this case, the terminal block 125 and the HVB 127 may be electrically connected using a separate lead wire.

In addition, the terminal block 125 is shielded using the block cover 126, and the sliding guide 121b having the rib 123c formed in the box 121 covers the PCB assembly 123 configured as described above. Sliding and coupled to the fixed box 121 to be inserted into the sliding movement.

Next, the hook 131b formed in the display case 131 is inserted into the hook fastening hole 129a formed in the front upper plate part 129 of the side cover 124 to hook the display case 131. The display case 131 and the PCB 123a are electrically connected to each other using a lead wire.

In addition, the display case 131 is hooked to the front cover part 129 of the side cover 124 by using a fastening member such as a screw on the side cover 124 to the box 121. Combine.

In this state, the display unit 133, 134, and the display PC 132 on which the remote controller receiver 136 and the operation / stop switch 137 are installed may be screwed to the display case 131. When combined using the fastening member, the assembly process for the rear case 10 of the control unit 120 including the display case 131 is finally completed.

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

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

3 is an exploded perspective view showing a state in which the control unit is installed in the rear case of the configuration of FIG.

4 is an exploded perspective view illustrating a control unit and a display assembly in the configuration of FIG. 3;

5 is an exploded perspective view illustrating the control unit and the display assembly assembled to the rear case of FIG. 1.

2: body 4: air intake

6, 8: air outlet 10: rear case

11, 12 and 13: flow path forming portion 27: base portion

28: top plate 30: front case

34: slope 50: front cover

60: blower 120: control unit

120 ': control unit case 121: fixed box

121b: sliding guide 122: front cover

123b: PCB case 123b ": front panel

123c: rib 125: terminal block

126: block cover 128: side cover

129: front top panel 130: display assembly

131: display case 131a: contact portion

132: PCB 133,134: display unit

135: LED guide 137: run / stop switch

140: window 141: buttonhole

143: button portion 144: elastic button member

145: tightening boss 146: screw

147: light transmitting portion

Claims

A rear case which forms an exterior of the rear part of the main body and whose front surface is opened;

A control unit disposed inside the rear case,

The control unit,

A PCB assembly including a PCB, a PCB case to which the PCB is coupled, and a terminal block connected to the PCB by a wire;

It includes a control unit case fixed to the inside of the rear case,

The PCB assembly is a sliding air detachable to the control unit case.

The method according to claim 1,

The control unit case,

A fixed box having a front surface opened and detached from the left and right sides of the PCB assembly;

A front cover disposed at an opened front surface of the fixed box;

And a side cover disposed on one open side of the box.

The method according to claim 1,

The control unit case is an air conditioner made of a metal material.

The method according to claim 1 or 3,

The PCB case,

A side plate portion in which the PCB is installed and disposed inside the box horizontally on one side of the opened box;

An air conditioner is integrally formed with the front end portion of the side plate portion, and includes a front plate portion extending perpendicular to the side plate portion.

The method according to claim 4,

Ribs protruding up and down are integrally formed at the upper and lower ends of the side plate portion, respectively.

The air conditioner is formed in each of the sliding guide is inserted into the inside of the box to guide the sliding movement of the PCB case.

The method according to claim 5,

The front cover is disposed in front of the front plate portion to shield the front plate portion,

In front of the front cover, the terminal block is disposed,

And the front cover has a size smaller than an open front surface of the fixed box.

The method according to claim 6,

The PCB assembly further comprises a terminal block cover disposed in front of the front cover and covering the terminal block.

The method according to claim 1,

The air conditioner further comprises a display unit which is hooked on the upper portion of the control unit and is seated and displays information such as cooling / heating operation or clean operation of the main body.

The method according to claim 8,

A front case disposed in front of the rear case and having an air inlet, a lower air outlet, and an upper air outlet;

The display unit,

A display assembly hooked to an upper end of the PCB case;

And a window disposed on one side of the front case facing the display assembly to cover the display assembly, and displaying a driving information of the main body by irradiated light.

The method according to claim 9,

The display assembly,

A display case hooked to an upper end of the PCB case;

A display PCB installed in the display case;

A display unit installed in the display PCB;

And a run / stop switch installed on the display PC so that a user manually operates the main body.

The method according to claim 10,

The air conditioner of the display case is formed integrally with a contact portion extending in a side in which the window is disposed to be in line contact with the rear surface of the window or the front case.

The method according to claim 10,

The display assembly,

And an elastic button member disposed between the window and the run / stop switch and configured to switch the run / stop switch by an external force.

The method according to claim 12,

The elastic button member, one end is screwed to the back of the front case, the other end of the air conditioner to switch the operation / stop switch while moving between the window and the operation / stop switch.

14. The method of claim 13,

An air conditioner having a button portion protruding to the front through the button hole formed in the window at the other end of the elastic button member.

The method according to claim 10,

The display unit includes a plurality of LEDs spaced apart from the display PCB.

The method according to claim 15,

The LED is an air conditioner of at least one is a variable color LED capable of emitting a variety of colors.

The method according to claim 15 or 16,

At least one of the LEDs of the display unit is an operation display unit for selectively displaying the cooling operation and heating operation of the main body, the other is a function display unit for displaying the clean operation of the main body,

The air conditioner of the driving display unit is a variable color LED.

The method according to claim 17,

Further comprising at least any one of an anion generator disposed in the air flow path inside the main body to generate negative ions or an electrostatic precipitating filter disposed inside the air intake port,

The function display unit is on when the electrostatic precipitating filter is activated, and is off when the electrostatic precipitating filter is inoperative.

19. The method of claim 18,

The PCB is provided with an LED guide to protect the LED and to guide the light irradiated from the LED.