CN106895503B

CN106895503B - Air conditioner

Info

Publication number: CN106895503B
Application number: CN201610741828.1A
Authority: CN
Inventors: 全富焕
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2015-12-18
Filing date: 2016-08-26
Publication date: 2020-06-05
Anticipated expiration: 2036-08-26
Also published as: EP3182023B1; CN106895503A; EP3182023A1; US20170176028A1

Abstract

The invention provides an air conditioner. An outdoor unit of an air conditioner according to an embodiment of the present invention includes a casing including an electric and electronic chamber provided with an electric and electronic unit and a heat exchange chamber provided on one side of the electric and electronic chamber and provided with a heat exchanger, the electric and electronic unit including: a plurality of electrical electronic components; an electric and electronic panel provided with a plurality of the electric and electronic components; and a terminal box provided on one side of the electric and electronic panel and having a terminal portion. According to the present invention, the inspection window is formed in the outdoor unit, and the display device is disposed inside the inspection window, so that the operation state of the outdoor unit can be easily confirmed through the inspection window only by separating the maintenance cover without separating the panel of the outdoor unit. Further, since a plurality of cables can be connected to the junction box, the cables can be arranged without being entangled, and short-circuiting or connection of the cables can be prevented.

Description

Air conditioner

Technical Field

The present invention relates to an air conditioner.

Background

An air conditioner is a home appliance that maintains indoor air in an optimum state according to the use and purpose. For example, the indoor air is conditioned to a cool and cool cooling state in summer, to a warm and warm heating state in winter, and to a comfortable and clean state by adjusting the humidity in the indoor air.

The air conditioner can be divided into a separate type air conditioner in which an indoor unit and an outdoor unit are separated, and an integrated type air conditioner in which an indoor unit and an outdoor unit are integrated, according to whether the indoor unit and the outdoor unit are separated or not.

In addition, according to the installation state of the air conditioner, the air conditioner may be classified into a wall-mounted air conditioner and a frame-mounted air conditioner which are installed on a wall, and a cabinet-type air conditioner which can be erected in a living room.

Further, according to the capacity of the indoor unit, there are: a single air conditioner configured to have a capacity capable of driving one indoor unit so as to be usable in a narrow place such as a home; a medium-and-large-sized air conditioner constructed in a very large capacity that can be used in a company or a dining hall; and a multi-type air conditioner configured to have a capacity capable of sufficiently driving a plurality of indoor units.

The air conditioner performs a refrigeration cycle. The apparatus for performing the refrigeration cycle includes: a compressor for compressing a refrigerant; a condenser for condensing the refrigerant compressed by the compressor; an expansion device for expanding the refrigerant passing through the condenser; and an evaporator that evaporates the refrigerant that has passed through the expansion device.

In general, the outdoor unit and the indoor unit of the separate type air conditioner are separately formed and disposed in the outdoor and indoor areas, respectively, but when the outdoor unit and the indoor unit are installed relatively far, the length of a pipe for connecting the outdoor unit and the indoor unit becomes long, thereby increasing flow loss in the pipe, and thus, if the outdoor unit and the indoor unit are installed close to each other, cooling efficiency, cost, or the like is facilitated.

Therefore, in the case of a high-rise building such as an apartment building or an office building, an outdoor unit is disposed in a space such as a balcony of the building (hereinafter, referred to as an outdoor unit installation space) so that the outdoor unit is installed adjacent to an indoor unit. In this case, the discharge portion provided in the outdoor unit may be disposed to face an exhaust port such as a window of a balcony. The discharge unit is disposed on a front surface of the outdoor unit. In this case, the air discharged through the discharge portion may be directly discharged to the outside of the balcony.

In addition, a display unit for displaying information on the operation state of the air conditioner may be provided on the front surface of the outdoor unit. In the installation state of the outdoor unit as described above, there are the following problems: in order to confirm the operation state of the outdoor unit, a user needs to move to a narrow space between the front surface of the outdoor unit and a window of a balcony.

The display unit can be shielded by a panel forming the appearance of the front surface of the outdoor unit. Therefore, in order to confirm the display portion, the panel needs to be separated. However, when the outdoor unit is disposed as described above, it is necessary to separate the panels of the outdoor unit in the narrow space, and thus it is difficult to confirm the operation state.

In addition, when the air conditioner is installed in the installation space of the outdoor unit, the air discharged from the front surface may flow into the outdoor unit again. In order to prevent this, a guide member may be provided on a panel of the outdoor unit, and the guide member may restrict the discharged air from flowing to a suction portion side of the outdoor unit.

In the outdoor unit provided with the guide member, in order to confirm the display portion, the guide member needs to be removed first, and then the panel needs to be separated, so that there is a problem that the work efficiency is reduced. Further, when the outdoor unit is mounted on an outer wall of a building, there are problems in that: there is a danger that an operator separates the panel of the outdoor unit installed on the outer wall.

The prior documents associated with the above are as follows:

application No. (application date): KR10-2004-0101027 (12 months 03 days in 2004)

The invention name is as follows: composite air conditioning system

In the above-mentioned conventional document, the state and operation of the air conditioner are controlled by the connection port and the communication interface, but if the connection port is connected to the outdoor unit, the panel of the outdoor unit is removed first, and therefore, there still remains the following problem: it is impossible to easily confirm the operation state of the outdoor unit in a narrow space.

In addition, the separation type air conditioner includes a power cable for supplying power to the outdoor unit and the indoor unit. Specifically, the power cables may include an indoor side power cable connected to the indoor unit and an outdoor side power cable connected to the outdoor unit. At least a part of the indoor power cable and the outdoor power cable are located in the outdoor unit.

In addition, the air conditioner may further include a signal cable for transmitting a control signal to the outdoor unit and the indoor unit. Specifically, the signal cables may include an indoor side signal cable connected to the indoor unit and an outdoor side signal cable connected to the outdoor unit. At least a part of the outdoor side signal cable and the indoor side signal cable are located in the outdoor unit.

According to the existing air conditioner, since a plurality of cables are located in the outdoor unit, there are the following problems: a plurality of said cables are twisted together in a complex manner with respect to each other, with the risk of certain lines being broken or short-circuited to each other.

In order to prevent the above problem, the conventional air conditioner may further include a cable extending from the outside to the outdoor unit and a junction box for connecting the cable located inside the outdoor unit. For example, a cable extending from the outside to the outdoor unit may be connected to one side of the junction box, and a cable positioned inside the outdoor unit may be connected to the other side of the junction box.

The prior documents associated with the above are as follows:

application No. (application date): KR10-2003-0024914 (19/04/2003)

The invention name is as follows: outdoor unit controller of air conditioner

In the prior art, the terminal block is configured to have a plurality of ends, and the power cable and the signal cable are connected to different ends of the terminal block from each other. Although the structure as described above can reduce the risk of short circuit between the cables, it is necessary to add a separate electric and electronic panel for connecting the junction box, and thus interference may occur between the added separate electric and electronic panel and the plurality of electric and electronic components, and due to the interference, there occurs a risk of separation of the cables from the junction box. Also, there are the following problems: due to the addition of a separate electrical and electronic panel, the flow of air for cooling the electrical and electronic parts is impeded.

Therefore, there is a need for a structure that prevents entanglement between the plurality of cables and interference with the plurality of electrical and electronic components, and that does not obstruct the flow of air flowing in the electrical and electronic section.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an air conditioner in which an operation state can be easily checked without removing a panel of an outdoor unit.

Further, an object is to provide an air conditioner capable of controlling an outdoor unit without removing a panel.

Further, an object of the present invention is to provide an air conditioner that prevents a risk of disconnection and short circuit by organizing a plurality of cables inside an outdoor unit.

Further, an object of the present invention is to provide an air conditioner in which a plurality of cables are prevented from interfering with electrical and electronic components disposed inside an electrical and electronic unit.

Further, it is an object to provide an air conditioner that does not obstruct the flow of air flowing in the electrical and electronic part.

An outdoor unit of an air conditioner according to an embodiment of the present invention includes a casing including an electric and electronic chamber in which an electric and electronic unit is installed and a heat exchange chamber in which a heat exchanger is disposed and which is installed at one side of the electric and electronic chamber, the electric and electronic unit including: a plurality of electrical electronic components; an electric and electronic panel provided with a plurality of the electric and electronic components; and a terminal box provided on one side of the electric and electronic panel and having a terminal portion.

Further, the electric and electronic parts include a display device, and the chassis includes: a front surface portion having a discharge port facing the discharge port; side surface portions disposed on both sides of the front surface portion; an upper surface portion disposed above the front surface portion, the side surface portion including: an inspection window formed through at least a part of the side surface portion being opened and guided so as to approach the display device; a maintenance cover combined with the inspection window to protect the display device.

Further, the front face portion includes: the front face includes: a front panel provided with the discharge port; and a first panel part coupled to one side of the front panel to shield the front of the electric and electronic part. The side face portion includes: a second panel section bent backward from the first panel section for shielding a side of the electropneumatic section; and a side panel coupled to one side of the second panel part.

Further, the display device includes: a circuit board provided with an operation unit and a communication unit; and the display part is arranged on one surface of the circuit board and is used for displaying the information of the working state of the air conditioner.

In addition, the side surface portion further includes a recessed portion that forms a corner portion of the inspection window and is combined with the service cover.

Further, the service cover includes: a first upper end portion inclined downward in one direction from a position of an upper end of the maintenance cover; and a second upper end portion inclined downward from a position of an upper end of the maintenance cover toward another direction.

In addition, the heat insulation part is arranged on the back of the maintenance cover and used for preventing moisture from entering the inner part of the machine shell.

Further, the terminal portion includes a first terminal portion and a second terminal portion, and the electric and electronic portion further includes: a first cable connected to the first terminal portion and transmitting a signal to the electrical/electronic component; a second cable extending from the outside and connected to the second terminal portion; and a fixing member that is provided to be spaced apart from the junction box and supports the second cable, the electric and electronic panel including: an installation portion in which the electrical/electronic component is installed; a support surface supporting the junction box; and an opening portion provided between the setting portion and the support surface.

Further, the first cable extends from the junction box to the electric and electronic parts through the opening portion.

The electric/electronic panel further includes a connecting portion extending in a direction intersecting the mounting portion and provided with another electric/electronic component, and the support surface is coupled to the connecting portion.

Further, a lower portion of the setting portion constitutes an upper end portion of the opening portion, and an upper portion of the support surface constitutes a lower end portion of the opening portion.

In addition, the electric and electronic panel further includes a fixing surface provided with the fixing member and located at a lower side of the supporting surface.

Further, the support surface and the fixing surface are disposed so as to face in one direction. The distance from the support surface to the second terminal portion corresponds to the distance from the support surface to the second cable fixed to the fixing member.

According to the present invention, the display device is provided on the side surface of the outdoor unit, so that information displayed on the display device can be easily confirmed.

Further, the inspection window is formed in the outdoor unit, and the display device is disposed inside the inspection window, so that the operation state of the outdoor unit can be easily confirmed through the inspection window only by separating the maintenance cover without separating the panel of the outdoor unit.

Further, by providing the cover including the heat radiating member, moisture can be prevented from entering the inside of the electric and electronic part.

Further, since a plurality of cables can be connected to the junction box, the cables can be arranged without being entangled, and short-circuiting or connection of the cables can be prevented.

In addition, the cable connected to the junction box is guided by the fixing member, so that the cable can be installed in the outdoor unit in a spread state, thereby preventing the cable from being bent or twisted together.

Further, the cable connected to the junction box is guided by the fixing member, and therefore, the cable can be prevented from being separated from the junction box.

Further, since the fixing member is disposed so as to correspond to the terminal portion of the terminal block, the cable can be prevented from being connected in a bent state.

Further, since the space separated from the electric/electronic panel to which the electric/electronic component is connected is provided and the wiring is performed in the separated space, the wiring can be easily performed.

The details of one or more embodiments are set forth in the accompanying drawings and the description below. Other features will be apparent from the description and drawings, and from the claims.

Drawings

Fig. 1 is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 2 is a diagram showing the configuration of an air conditioner and the flow cycle of refrigerant according to an embodiment of the present invention.

Fig. 3 is an exploded view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 4 is a plan view of the outdoor unit of the air conditioner of the embodiment of the present invention with the upper panel removed.

Fig. 5 is a front perspective view showing an electric and electronic part of the air conditioner of the embodiment of the present invention.

Fig. 6 is a rear perspective view showing an electric and electronic part of the air conditioner according to the embodiment of the present invention.

Fig. 7 is a diagram showing a display device of an air conditioner of an embodiment of the present invention.

Fig. 8 is a diagram showing a terminal block of an air conditioner of an embodiment of the present invention.

Fig. 9 is a rear perspective view showing a state where the terminal box of the air conditioner according to the embodiment of the present invention is connected to the electric and electronic panel.

Fig. 10 is a sectional view showing a state in which the terminal box of the air conditioner of the embodiment of the present invention is connected to the electric and electronic panel.

Fig. 11 is a perspective view showing a state where the service cover of the air conditioner of the embodiment of the present invention is separated.

Fig. 12 is a view showing a state where a service cover is attached to a service panel of an air conditioner according to an embodiment of the present invention.

Fig. 13 is a sectional view showing a structure in which a service panel and a service cover of an air conditioner according to an embodiment of the present invention are connected.

Detailed Description

Fig. 1 is a perspective view showing an outdoor unit of an air conditioner according to an embodiment of the present invention, fig. 2 is a view showing a structure of the air conditioner according to the embodiment of the present invention and showing a flow cycle of a refrigerant, fig. 3 is an exploded view showing the outdoor unit of the air conditioner according to the embodiment of the present invention, and fig. 4 is a plan view of the outdoor unit with an upper panel of the air conditioner according to the embodiment of the present invention removed.

Referring to fig. 1 to 4, an air conditioner according to an embodiment of the present invention includes: an outdoor unit 10 that exchanges heat with outdoor air; and an indoor unit (not shown) disposed in the indoor space for conditioning indoor air.

The outdoor unit 10 includes a casing forming an external appearance and having a plurality of components built therein. The casing includes a front panel 11, and the front panel 11 constitutes a front surface of the outdoor unit and is provided with a discharge port 11A. The front panel 11 may be disposed to face a window of a space in which the outdoor unit is installed, or an outer wall. That is, the front panel 11 may be disposed such that the discharge port 11A faces an exhaust port such as a window.

The casing further includes at least one of a rear panel 12 and an upper panel 13, the rear panel 12 is disposed to be spaced rearward from the front panel 11 and has a first suction port 12A, and the upper panel 13 forms an upper surface portion of the outdoor unit. The casing includes

side panels

14 and 15 constituting both side surfaces of the outdoor unit. The side panels include a left side panel 14 having a second suction port 14A and a right side panel 15 having a third suction port 15A.

In the present embodiment, the front panel 11 may be understood as a "front face portion" of the cabinet, the rear panel 12 may be understood as a "rear face portion" of the cabinet, and the both

side panels

14, 15 may be understood as "both side face portions" of the cabinet. The outdoor unit 10 includes an internal space surrounded by the casing, and a compressor and the like described below are disposed in the internal space.

The outdoor unit 10 may include

suction ports

12A, 14A, and 15A for sucking outdoor air and a discharge port 11A for discharging the sucked air. The discharge port 11A may be formed in front of the outdoor unit 10, and the

suction ports

12A, 14A, and 15A may be formed in the rear or side of the cabinet. More specifically, the discharge port 11A may be located in the front panel 11, and the

suction ports

12A, 14A, and 15A may be located in at least one of the rear panel 12, the left side panel 14, and the right side panel 15.

The outdoor unit 10 may further include a maintenance panel 100. The maintenance panel 100 may be formed to be curved in a circular arc shape in a side direction of the front surface of the outdoor unit. For example, the maintenance panel 100 may be curved in a circular arc shape on the right side of the front surface of the outdoor unit, one end of the maintenance panel 100 may be connected to the right side end of the front panel 11, and the other end of the maintenance panel 100 may be connected to the front end of the right side panel 15.

The maintenance panel 100 can open and shield both the front and the side by one panel, and thus, an installer or a manager can easily access the electric and electronic room. The maintenance panel 100 will be described in detail later.

The outdoor unit 10 further includes a base 17 constituting a lower surface portion of the outdoor unit, and the compressor and the like may be mounted on an upper surface of the base 17. The lower surface of the base 17 can be in contact with the ground so that the outdoor unit 10 can be fixed on the ground.

The outdoor unit 10 may include a partition wall 18, the partition wall 18 extending upward from the base 17 and dividing the inner space into a heat exchange chamber 50 and an electric and electronic chamber 60. The partition wall 18 prevents moisture inside the heat exchange chamber 50 from entering the electrical and electronic chamber 60.

The heat exchange chamber 50 is a space in which a heat exchanger 24 and a fan 32, which will be described later, are disposed, and is a space in which heat exchange is performed between the refrigerant passing through the heat exchanger 24 and the outside air flowing through the fan 32. The electric and electronic chamber 60 is a space in which an electric and electronic part 70 described later is provided. In order to prevent moisture from entering, the electric and electronic part 70 may be disposed at an upper portion of the electric and electronic chamber.

The partition wall 18 is a plate extending in the vertical direction, and one end thereof may be coupled to the upper surface of the base 17, and the other end thereof may be coupled to a first panel 80 described later. The partition wall 18 may include a curved surface in a circular arc shape, and in this case, the partition wall 18 may have a curved surface to correspond to a structure disposed in the electric and electronic chamber 60.

The outdoor unit 10 may include at least one of a compressor 21, an oil separator 22, a flow switching unit 23, an outdoor heat exchanger 24, an outdoor solenoid valve 38, a gas-liquid separator 25, and a plurality of refrigerant pipes 26.

The outdoor unit 10 includes: a compressor 21 that compresses a refrigerant; and an oil separator 22 disposed on an outlet side of the compressor 21, for separating oil from the refrigerant discharged from the compressor 21.

A flow switching part 23 is provided on an outlet side of the oil separator 22, and the flow switching part 23 is configured to guide the refrigerant discharged from the compressor 21 to an outdoor heat exchanger 24 or an indoor unit (not shown). As an example, the flow switching part 23 may include a four-way valve. The flow switching unit 23 may be connected to a first connection pipe 27, a second connection pipe 28, and a third connection pipe 29, the first connection pipe 27 being connected to the outdoor heat exchanger 24, the second connection pipe 28 being connected to the gas-liquid separator 25, and the third connection pipe 29 being connected to the indoor unit (not shown).

When the air conditioner performs the cooling operation, the refrigerant flows from the flow switching unit 23 into the outdoor heat exchanger 24 through the first connection pipe 27. When the air conditioner performs a heating operation, the refrigerant flows from the flow switching unit 23 to the indoor heat exchanger side of the indoor unit (not shown) via the third connection pipe 29. The outdoor heat exchanger 24 exchanges heat between outside air and a refrigerant, and the outdoor heat exchanger 24 functions as a condenser when the air conditioner performs a cooling operation, and the outdoor heat exchanger 24 functions as an evaporator when the air conditioner performs a heating operation.

When the air conditioner performs a cooling operation, the refrigerant having passed through the outdoor heat exchanger 24 passes through the expansion valve 35. That is, the expansion valve 35 may be disposed on the outlet side of the outdoor heat exchanger 24 when cooling operation is taken as a reference. During the cooling operation, the expansion valve 35 is fully opened, and therefore the decompression of the refrigerant is not performed.

The refrigerant having passed through the expansion valve 35 flows into the indoor unit through the indoor pipe 38, and the refrigerant evaporated in the indoor heat exchanger (not shown) flows into the outdoor unit 10 through the indoor pipe 38. The refrigerant flowing into the outdoor unit flows into the flow switching unit 23 through the third connection pipe 29, and flows out from the flow switching unit 23 through the second connection pipe 28.

The refrigerant having passed through the flow switching portion 23 flows into the gas-liquid separator 25. The gas-liquid separator 25 separates gaseous refrigerant before the refrigerant flows into the compressor 21, and the separated gaseous refrigerant flows into the compressor 21.

The outdoor unit may further include a motor 31, a fan 32, and a motor bracket 33.

The motor 31 provides a rotational force to the fan 32, and the fan 32 is connected to the rotational shaft of the motor 31 and causes air to flow by the rotational force. The fan 32 is connected to the motor bracket 33, and the motor bracket 33 supports the motor 31 and the fan 32.

The fan 32 may be located at a position corresponding to the discharge port 11A provided in the front panel 11, and the motor holder 33 may be a structure formed between the base 17 and the upper panel 13, that is, one end thereof may be connected to an upper surface of the base 17, and the other end thereof may be connected to a lower surface of the upper panel 13, so that the motor 31 connected to the front may be located at a position corresponding to the discharge port 11A.

Fig. 5 is a front perspective view showing an electric and electronic part of an air conditioner according to an embodiment of the present invention, and fig. 6 is a rear perspective view showing the electric and electronic part of the air conditioner according to the embodiment of the present invention.

Referring to fig. 5 and 6, the outdoor unit 10 includes an electrical and electronic part 70 for controlling the air conditioner. As an example, the electric and electronic part 70 may include at least one of a main Printed Circuit Board (PCB)71, a display device 72, an Inverter printed circuit board 73(Inverter PCB), a heat sink 75, a noise filter 78, and a reactor 79.

As another example, the electrical and electronic part 70 may include a junction box 200 connected to a plurality of cables connected to the electrical and electronic part 70 and a fixing member 300 fixing the cables.

The electric and electronic part 70 may include: a first electric and electronic panel 80 to which a plurality of the electric and electronic components are connected, the first electric and electronic panel 80; a second electrical and electronic panel 90 configured to be disposed spaced apart from the first electrical and electronic panel 80. The first electric and electronic panel 80 may be positioned at an upper side of the partition wall 18, and the partition wall 18 and the first electric and electronic panel 80 may divide the heat exchange chamber 50 and the electric and electronic chamber 60.

The inverter Printed Circuit Board (PCB)73 may be connected to a front surface of the first electrical and electronic panel 80, and the heat sink 75 may be connected to a rear surface thereof. Here, the front surface refers to a surface adjacent to the electric and electronic chamber 60, and the back surface refers to a surface adjacent to the heat exchange chamber 50.

The inverter Printed Circuit Board (PCB)73 and the heat sink 75 are connected at positions corresponding to each other with reference to the first electrical and electronic panel 80. Accordingly, the heat of the inverter Printed Circuit Board (PCB)73 may be transferred to the heat sink 75 through the first electrical and electronic panel 80 and discharged.

The first electric and electronic panel 80 may include a suction portion 85. The suction portion 85 is located above the first electric/electronic panel 80, and the suction portion 85 may be an opening penetrating the first electric/electronic panel. As an example, the suction part 85 may be positioned at an upper side of a position where the inverter Printed Circuit Board (PCB)73 is connected. The air guide 86 may be positioned at the rear of the suction portion 85, and the air in front of the suction portion 85 may flow into the inlet of the air guide 86.

The second electric/electronic panel 90 includes a front surface 91 disposed to face the front panel 11. The front surface 91 may be disposed parallel to the front panel 11 or the rear panel 12.

The second electric/electronic panel 90 may further include

side surface portions

92, 93, and 94 bent and extended from the front surface portion 91. The

side surface portions

92, 93, and 94 may include at least one of a first side surface portion 93, a second side surface portion 92, and a third side surface portion 94, the first side surface portion 93 being bent and extended from the front surface portion 91, the second side surface portion 92 being bent and extended from the front surface portion 91 and being positioned at an upper side of the first side surface portion 93, and the third side surface portion 94 being bent and extended from the front surface portion 91 and being positioned at a lower side of the first side surface portion 93.

In this case, the second side surface portion 92 may be disposed parallel to the maintenance panel 100, and the first or third

side surface portions

93 and 94 may be disposed parallel to the left or

right side panel

14 and 15.

The second electric and electronic panel 90 may further include a rear surface portion 95 bent and extended from the first side surface portion 93, the second side surface portion 92, and the third side surface portion 94. The rear surface portion 95 may be disposed in parallel with the front panel 11, the rear panel 12, or the front surface portion 91.

The first side surface portion 93, the second side surface portion 92, and the third side surface portion 94 may be spaced apart from each other in the vertical direction. The vertical direction is a direction from the base 17 toward the upper panel 13 or a direction from the upper panel 13 toward the base 17. That is, the first side surface portion 93, the second side surface portion 92, and the third side surface portion 94 may be arranged such that: the second lateral surface portion 92, the first lateral surface portion 93, and the third lateral surface portion 94 are spaced apart from each other in this order from the upper side to the lower side.

The first side surface portion 93, the second side surface portion 92, and the third side surface portion 94 may be spaced apart from each other in the left-right direction. Here, the left-right direction refers to a direction from the right side surface plate 15 toward the left side panel 14 or a direction from the left side surface plate 14 toward the right side panel 15.

As an example, of the first side surface portion 93, the second side surface portion 92, and the third side surface portion 94, the second side surface portion 92 is disposed closest to the right side panel 15, the first side surface portion 93 is disposed closest to the left side panel 14, and the third side surface portion 94 is disposed between the first side surface portion 93 and the second side surface portion 92 and spaced apart from each other. That is, the first side surface portion 93, the second side surface portion 92, and the third side surface portion 94 may be arranged such that: the second side surface portion 92, the third side surface portion 94, and the first side surface portion 93 are spaced apart from each other in this order from the right side to the left side.

Spaces 98 and 99 may be formed between the first side surface portion 93, the second side surface portion 92, and the third side surface portion 94. For example, a first space 98 may be formed between the first lateral portion 93 and the second lateral portion 92, and a second space 99 may be formed between the first lateral portion 93 and the third lateral portion 94 (see fig. 10).

The first cable 205 connected to the junction box 200 described later can be connected to the electrical/electronic component through the first space portion 98. Further, since the plurality of cables can be directly connected to the electronic and electric parts through the first space portion 98, the length of the cable wiring can be shortened, and air friction due to the wiring can be reduced, and further, air can flow through the second space portion 99, thereby securing an air flow path. The space 98 is formed by opening a part of the front panel 11 in the vertical direction, and thus can be understood as an "opening" of the front panel 11.

The main Printed Circuit Board (PCB)71 may be connected to a front surface of the front surface 91, and the reactor 79 may be connected to a rear surface thereof. The main Printed Circuit Board (PCB)71 and the reactor 79 may be configured not to correspond to each other. As an example, a main Printed Circuit Board (PCB) is connected to an upper side of a front surface of the front surface part 91, and the reactor 79 is connected to a lower side of a rear surface of the front surface part 91.

According to the above configuration, since air adjacent to the rear surface of the front surface 91 is discharged to the heat exchange chamber 50 through the air guide 86, which will be described later, the reactor 79 having a large heat dissipation amount is provided on the rear surface of the front surface 91 with respect to the main Printed Circuit Board (PCB)71, and heat generated in the reactor 79 is prevented from being transferred to the main Printed Circuit Board (PCB) 71.

The display device 72 may be connected to the front surface of the second side surface portion 92, and the noise filter 78 may be connected to the rear surface thereof. The display device 72 may be configured to face the service panel 100. More specifically, the display device may be disposed in a maintenance window facing the maintenance panel 100 so that the display device can be confirmed outside the outdoor unit through the maintenance window.

Referring to fig. 7, the display device 72 includes a circuit board and a display part 72A provided on one surface of the circuit board and displaying information on an operating state of the air conditioner. For example, the display portion 72A may include a plurality of Seven segments (Seven segments).

The circuit board may include an operating portion 72B. For example, the operation portion 72B may include a plurality of switches.

The circuit board may also include a communication portion 72C. The communication unit 72C can communicate with a device outside the outdoor unit. The operator can receive information on the operation state of the outdoor unit 10 by using the communication unit 72C, and can upload a program or the like to the outdoor unit 10 by using the communication unit 72C.

Fig. 8 is a view showing a terminal box of an air conditioner according to an embodiment of the present invention, fig. 9 is a rear perspective view showing a state where the terminal box of the air conditioner according to the embodiment of the present invention is connected to an electric and electronic panel, and fig. 10 is a sectional view showing a state where the terminal box of the air conditioner according to the embodiment of the present invention is connected to the electric and electronic panel.

Referring to fig. 5 to 6 and 8 to 10, a junction box 200 may be connected to a front surface of the first side surface portion 93.

One end of a power cable or a signal cable connected from the outside to the inside of the outdoor unit is connected to the junction box 200, and distributes the power or the signal to each of the electric and electronic parts 70. The wiring of the power cable or the signal cable passes through the first side surface portion 93, the second side surface portion 92, and the third side surface portion 94, which are spaced apart from each other, and is connected to each of the electronic and electrical parts 70.

A fixing member 300 may be connected to a front surface of the third side surface portion 94, and a part of the power cable or the signal cable may be fixed to the fixing member 300.

In this embodiment, the front surface portion 91 is connected to the first side surface portion 93, the second side surface portion 92, and the third side surface portion 94, and in this respect, the front surface portion 91 may be regarded as a "connecting portion". In addition, the second side surface portion 92 is provided with an electric and electronic component, and in this respect, the second side surface portion 92 may be regarded as an "installation portion", and the first side surface portion 93 supports the terminal box 200, and therefore, the first side surface portion 93 may be regarded as a "support surface", and the third side surface portion 94 is provided with a fixing member 300 for fixing the power supply cable or the signal cable, and in this respect, the third side surface portion 94 may be regarded as a "fixing surface". The junction box 200 is electrically connected to a power cable and a signal cable, and connects a power source and a signal outside the outdoor unit to the electric and electronic part 70 inside the outdoor unit.

The terminal box 200 includes a main body 210 and a terminal 230. One ends of the power cable and the signal cable may be connected to the terminal portion 230. The terminal portions 230 may be provided in plural in correspondence with the number of the cables, and may be arranged in parallel in correspondence with each other.

For example, the terminal portions 230 may be formed in 2 rows, and the terminal portions 230 may include first terminal portions 230A and second terminal portions 230B. The first terminal portion 230A may be an output terminal for transmitting power and signals to the electronic and electronic components 70, and the second terminal portion 230B may be an input terminal for inputting power and signals from the outside of the outdoor unit.

At this time, the power cable and the signal cable may include: a first cable 205 connected to the first terminal portion 230A and connected to the electrical/electronic portion 70; and a second cable 206 connected to the second terminal portion 230B and transmitting an external power source and a signal to the first terminal portion 230A. At this time, the first cable 205 may be understood as an output cable, and the second cable 206 may be understood as an input cable.

The terminal part 230 may include the first terminal part 230A and the same number of second terminal parts 230B, the first terminal part 230A may be disposed at one side of the body part 210, and the second terminal part 230B may be disposed at the other side of the body part 210. Although it is shown in the drawings that the four first terminal parts 230A and the four second terminal parts 230B are formed in 2 rows, it is not limited thereto and may be increased or decreased according to the number of power sources and signals used in the outdoor unit.

The terminal part 230 includes: a terminal 231 provided on the upper surface of the body portion 210 and electrically connected to one end of a cable; and an engaging member 232 which presses the terminal 231 to fix one end of the cable.

Although the terminal 231 and the engaging member 232 are illustrated in the drawings as penetrating the flat plate and the flat plate with screws, it is not limited thereto, and any structure may be applied if a structure capable of electrically connecting with and fixing one end of the cable is possible.

The junction box 200 further includes a partition wall 250. The partition walls 250 are disposed on the upper surface of the body portion 210 and between the terminal portions 230, and electrically separate the terminal portions 230. At this time, the partition wall 250 may extend from the upper surface of the body portion 210 to the lateral side. The distance between the cables can be made longer by the partition wall 250 extending to the side face.

The junction box 200 further includes a cover 270. The lid 270 is connected to the upper surface of the body 210, and prevents the terminal 230 from being exposed upward. Therefore, a terminal part 230 and a partition wall 250 may be provided between the main body part 210 and the lid part 270, and a cable connected to the terminal part 230 may extend to both sides of the main body part 210.

The junction box 200 further includes a connecting portion 290 for fixing the junction box to the first side surface portion 93. The connection part 290 includes an opening penetrating the body part 210 and a connection member penetrating the opening. The junction box 200 is connected to one surface of the first side surface portion 93 by the connection portion.

One side of the junction box 200 may be disposed to face the upper panel 13, and the other side of the junction box 200 may be disposed to face the base 17. For example, the first terminal portion 230A is disposed to face upward, and the second terminal portion 230B is disposed to face downward.

The first and

second side portions

93 and 92 may be spaced apart from each other in the left-right direction by a distance greater than the height of the body portion 210 of the junction box 200, and the cable connected to the first terminal portion 230A may be connected to each of the electric and electronic parts 70 through the first space portion 98 between the first and

second side portions

93 and 92.

That is, the first cable 205 corresponding to the output of the junction box 200 is connected to the first terminal part 230A, and the first cable 205 can be connected to each of the electronic and electric parts through the first space part 98. For example, the first cable 205 connected to the first terminal portion 230A may be connected to the noise filter 78 through the first space portion 98.

In addition, the first side surface portion 93 and the third side surface portion 94 may be spaced apart in the left-right direction by a distance corresponding to the height of the body portion 210 of the junction box 200. In this case, the height is a height from the first side surface portion 93, which is the lower surface of the terminal block 200, to the terminal portion 230.

The second cable 260 connected to the second terminal portion 230B may be fixed by a fixing member 300 provided on one surface of the third side surface portion 94. As an example, the fixing member 300 may be a clamping device.

In this case, the distance from the first side surface portion 93 to the second terminal portion 230B may correspond to the distance from the first side surface portion 93 to a second cable fixed to the fixing member 300, and the distance from the first side surface portion 93 to the second terminal portion 230B or the distance from the first side surface portion 93 to the second cable may be within 1 cm.

According to the above-described structure, since the second cable 206 is fixed by the fixing member 300 so that the second cable 206 is not bent and is connected to the junction box 200, the second cable 206 is doubly fixed by the junction box 200 and the fixing member 300, thereby preventing the second cable 206 from being pulled out of the junction box 200.

The terminal part 230 and the fixing member 300 may be located on a virtual plane. In this case, the first side surface portion 93 and the third side surface portion 94 may be arranged to face in one direction. For example, the first side surface portion 93 and the third side surface portion 94 may extend parallel to each other, and the first side surface portion 93 and the third side surface portion 94 may be disposed to face both side surface portions of the housing.

The fixing member 300 may be provided in plurality according to the number of the second cables 206.

Fig. 11 is a perspective view showing a state where a maintenance cover of an air conditioner according to an embodiment of the present invention is separated, fig. 12 is a view showing a state where a maintenance cover is attached to a maintenance panel of an air conditioner according to an embodiment of the present invention, and fig. 13 is a sectional view showing a connection structure of the maintenance panel and the maintenance cover of the air conditioner according to an embodiment of the present invention.

Referring to fig. 11 to 13, the maintenance panel 100 of the outdoor unit 10 according to an embodiment of the present invention includes a main body 101 curved in a circular arc shape from a front surface of the outdoor unit to one side. The main body 101 includes: a first panel portion 101A arranged to face forward; and a second panel portion 101B bent from the first panel portion 101A and extending to one side and facing one side.

From another point of view, the first panel 101A is a portion extending in the left-right direction, and the second panel 101B is a portion bent from the first panel 101A and extending in the front-rear direction.

In this regard, the front panel 11 and the first panel 101A are disposed so as to face the front of the housing, and in this regard, the "front face of the housing" is understood, and the

side panels

14 and 15 and the second panel 101B are understood as the "side face of the housing". Further, the upper panel 13 may be understood as the "upper face of the cabinet".

The maintenance panel 100 includes an inspection window 110 formed through the body 101. The inspection window 110 includes an opening penetrating the main body 101, and the inspection window 110 is formed in a shape corresponding to the shape of the display device 72 and is disposed at a position corresponding to the display device 72.

According to the above-described structure, the display device 72 can be exposed to the outside through the inspection window 110, and thus, an installer can check the state of the outdoor unit 10 through the inspection window 110 by opening only the maintenance cover 150 for selectively opening and closing the inspection window 110 without separating the maintenance panel 100.

The inspection window 110 may be disposed on the second panel part 101B. According to the above-described structure, even when the outdoor unit is disposed in a narrow space such as a balcony or a wall of a building and thus it is difficult to operate in front of the outdoor unit 10, the state of the outdoor unit can be recognized through the inspection window 110 provided in the second panel 101B of the outdoor unit, thereby improving convenience of an operator.

In the present embodiment, the inspection window 110 is provided on the second panel 101B, but is not limited thereto, and may be provided on the

side panels

14 and 15. That is, it may be provided on a side surface portion of the housing.

The maintenance panel 100 further includes a recess 103 recessed from the body 101 in an inside direction of the outdoor unit. The size of the recess 103 may be formed to correspond to the size of a service cover 150, which will be described later. For example, the recess 103 may be formed in the second panel 101B.

Further, the inspection window 110 may penetrate the recess 103, and the inspection window 110 may be formed at the center of the recess 103. That is, the recess 103 may be located in a vertical direction or a horizontal direction with respect to the inspection window 110. From other viewpoints, the recess 103 may be located at a corner of the inspection window 110.

The depth of the recess 103 recessed into the outdoor unit 10 may correspond to the thickness of a maintenance cover 150 to be described later. For example, the recess depth of the recess 103 may be the same as the thickness of the service cover 150. Therefore, the outer surface of the main body portion 101 and the outer surface of the service cover 150 may be located on the same plane. In this case, the outer surface is a surface formed in a direction opposite to a direction toward the inside of the outdoor unit.

The maintenance panel 100 may further include an inclined portion 102 extending from the main body portion 101 to the recess portion 103. The inclined portion 102 connects the main body portion 101 and the recessed portion 103 constituting a step difference with each other.

The maintenance panel 100 includes a connection part 120 penetrating the recess 103. The maintenance cover 150 is connected to the connection portion 120 by a connection member 170 described later.

The connection part 120 may be formed in plurality. And may be symmetrically disposed with respect to the inspection window 110. For example, one of the connection portions 120 may be formed on the recess 103 located above the inspection window 110, and the other connection portion 120 may be formed on the recess 103 located below the inspection window 110.

The service panel 100 may further include a connection reinforcement part 121. The connection reinforcing part 121 prevents the connection part 120 from being loosened by the expansion of the size by the connection member 170. The connection reinforcing part 121 may extend from the connection part 120 to the inside of the outdoor unit.

The connection part 120 and the connection reinforcing part 121 may be formed in one body. For example, the connection portion 120 may be formed by a pressing process. That is, the connection portion 120 may be formed by punching the recess 103, and the connection reinforcing portion 121 may be formed by processing a burr (burr) formed on the rear side of the recess 103 in the press process.

The outdoor unit 10 may further include a service cover 150. The service cover 150 selectively closes the inspection window 110 by being selectively coupled to the recess 103.

The service cover 150 includes a body portion 151 and an end portion 153 bent from the body portion toward the service panel 100. Therefore, the end 153 may contact the recess 103.

The end 153 includes an upper end 155 formed at an upper corner of the maintenance cover 150, a front end 156 formed at a front corner of the maintenance cover 150, a rear end 157 formed at a rear corner of the maintenance cover 150, and a lower end 158 formed at a lower corner of the maintenance cover 150. In this case, the front direction is a direction in which the discharge port 11A is formed in the outdoor unit 10, and the rear direction is a direction opposite to the front direction. The upper side refers to a direction toward the upper panel 13, and the lower side refers to a direction opposite to the upper side.

The upper end portions 155 may be formed to have different inclinations from one position to another. More specifically, the first upper end portion 155A is inclined from one position to one side, and the second upper end portion 155B is inclined from one position to the other side. The location may be the center of the upper end 155. In this case, the center is a position where the distance from the front end 156 is the same as the distance from the rear end 157.

For example, the first upper end portion 155A may be inclined downward when approaching the front from the center. The second upper end portion 155B may be inclined downward when approaching rearward from the center.

The first and second

upper end portions

155A and 155B may be symmetrical in the front-rear direction with respect to the center of the service cover. According to the above-described structure, the water flowing from the outer surface of the maintenance panel 100 to the maintenance cover 150 is branched to the first and second

upper end portions

155A and 155B, the water flowing through the first upper end portion 155A moves to the front end portion 156, and the water flowing through the second upper end portion 155B moves to the rear end portion 157.

The first and second

upper end portions

155A and 155B allow water to be rapidly discharged without being accumulated on the upper end portion 155, thereby preventing the water at the upper end portion from entering between the maintenance cover 150 and the recess 103.

The service cover 150 includes a through portion 152 penetrating the body portion 151. The maintenance cover 150 is connected to the maintenance panel 100 by a connecting member 170, which will be described later, penetrating the through portion 152.

The through portion 152 may be formed in plurality and correspond to the connection portion 120. For example, when the connection unit 120 is vertically formed with reference to the inspection window 110, the through portion 152 is also vertically formed corresponding to the connection unit 120.

The maintenance cover 150 includes a through reinforcement portion 153 extending from the through portion 152 toward the maintenance panel 100. The penetrating reinforcement 153 and the connection reinforcement 121 are functionally the same, but there is a difference in that the penetrating reinforcement 153 is provided in the penetrating portion 152.

The outdoor unit may further include a heat insulating member 160 for blocking the absorption of water into the inspection window 110. The heat insulating member 160 is disposed between the service panel 100 and the service cover 150, and between the service panel 100 and the inspection window 110.

Since one surface of the heat insulating member 160 contacts the inner surface of the service cover 150 and the other surface contacts the outer surface of the service panel 100, water outside the service panel 100 can be prevented from entering the inspection window 110. Accordingly, the heat insulating member 160 may be understood as a "waterproof member" or a "seal" that prevents water from entering the inspection window 110. For example, the heat insulating member may be made of a material having water absorption property or a porous material. In addition, as another example, the heat insulating member may be formed of any one of sponge, rubber, and plastic.

The outdoor unit 10 may further include a connection member 170 connecting the service cover 150 to the service panel 100. The connection member 170 is connected to the connection unit 120 through the through portion 152. The connection member 170 may be provided in plurality corresponding to the number of the through portions 152 or the connection portions 120.

The outdoor unit may include a gasket 180. The washer 180 intervenes between the head of the connection member 170 and the outer surface of the service cover 150 to prevent the connection member 170 from being loosened by vibration. The gasket 180 prevents moisture from entering the outdoor unit 10 through the penetration part 152. Thus, the gasket 180 may be understood as a "waterproof member" or "seal". Accordingly, the heat insulating member 160 and the gasket 180 block moisture from entering the inside of the outdoor unit.

Claims

1. An outdoor unit of an air conditioner for discharging conditioned air to a discharge port of an installation space, wherein,

the outdoor unit includes:

a housing including an electric and electronic chamber provided with an electric and electronic part and a heat exchange chamber provided on one side of the electric and electronic chamber and provided with a heat exchanger,

the electric and electronic part includes:

an electric and electronic panel provided with a plurality of electric and electronic components; and

a terminal box provided at one side of the electric and electronic panel and including a first terminal portion and a second terminal portion,

a first cable connected to the first terminal portion and transmitting a power source or a signal to the electrical/electronic component;

a second cable connected to the second terminal unit and extending to an outside of the outdoor unit; and

a fixing part disposed to be spaced apart from the junction box and supporting the second cable,

the electric and electronic panel includes:

an installation portion in which the electrical/electronic component is installed;

a support surface which is arranged in the same direction as the setting portion and on which the junction box is mounted;

a fixing surface arranged in the same direction as the support surface, the second cable being fixed to the fixing surface by the fixing member;

a first space portion provided between the installation portion and the support surface, the first cable penetrating the first space portion; and

and a second space portion provided between the support surface and the fixing surface, through which air flows.

2. The outdoor unit of an air conditioner according to claim 1,

the electrical and electronic component comprises a display device,

the housing includes: a front surface portion having a discharge port facing the discharge port; side surface portions disposed on both sides of the front surface portion; an upper surface portion disposed above the front surface portion,

the side face portion includes:

an inspection window formed through at least a part of the side surface portion being opened and guided so as to approach the display device;

a maintenance cover combined with the inspection window to protect the display device.

3. The outdoor unit of an air conditioner according to claim 2,

the front face includes:

a front panel provided with the discharge port;

and a first panel part coupled to one side of the front panel to shield the front of the electric and electronic part.

4. The outdoor unit of an air conditioner according to claim 3,

the side face portion includes:

a second panel section bent backward from the first panel section for shielding a side of the electropneumatic section; and

and a side panel coupled to one side of the second panel.

5. The outdoor unit of an air conditioner according to claim 2,

the display device includes:

a circuit board provided with an operation unit and a communication unit;

and the display part is arranged on one surface of the circuit board and is used for displaying the information of the working state of the air conditioner.

6. The outdoor unit of an air conditioner according to claim 2,

the side surface portion further includes a recessed portion that forms a corner portion of the inspection window and is combined with the service cover.

7. The outdoor unit of an air conditioner according to claim 2,

the service cover includes:

a first upper end portion inclined downward in one direction from a position of an upper end of the maintenance cover;

and a second upper end portion inclined downward from a position of an upper end of the maintenance cover toward another direction.

8. The outdoor unit of an air conditioner according to claim 2,

the heat insulation structure further comprises a heat insulation part which is arranged on the back surface of the maintenance cover and used for preventing moisture from entering the inner part of the machine shell.

9. The outdoor unit of an air conditioner according to claim 1,

the electric and electronic panel further includes a connecting portion extending in a direction intersecting the mounting portion and provided with other electric and electronic components,

the support surface and the fixing surface are combined with the connecting portion.

10. The outdoor unit of an air conditioner according to claim 1,

the first space portion is provided between a lower portion of the setting portion and an upper portion of the support surface.

11. The outdoor unit of an air conditioner according to claim 1,

the second space portion is provided between a lower portion of the support surface and an upper portion of the fixing surface.

12. The outdoor unit of an air conditioner according to claim 1,

the supporting surface is positioned at the rear of the lower side of the setting part,

the fixing surface is positioned in front of the lower side of the supporting surface.

13. The outdoor unit of an air conditioner according to claim 1,

the distance from the support surface to the second terminal portion corresponds to the distance from the support surface to the second cable fixed to the fixing member.