JP4112536B2 - Indoor unit for air conditioner - Google Patents

Description

  The present invention relates to a separation-type air conditioner, and more particularly to an indoor unit of an air conditioner that is installed indoors and cools and heats the room.

  In general, an air conditioner usually includes a compressor and a heat exchanger, and is separated as a device that cools or heats an indoor space such as a residential space, a dining room, a library, or an office room by flowing a refrigerant. It is divided into a mold and an integrated air conditioner.

Here, in the integrated air conditioner, the outdoor unit and the indoor unit are not separated in a form independent of each other, are formed integrally, and are installed by making a hole in a wall of a house or hanging it over a window.
Moreover, the separation-type air conditioner includes a heat exchanger installed in the indoor unit of the indoor cooling or heating and a heat exchanger for outdoor air heat exchanger, a compressor discharges by compressing the refrigerant high temperature, at high pressure And the refrigerant pipe connecting the indoor unit and the outdoor unit.
That is, in the separation type air conditioner, the indoor unit and the outdoor unit are separated into different configurations, and are installed indoors and outdoors, respectively.

  Referring to FIGS. 1 to 3, an indoor unit of a separation type air conditioner is coupled to a base 1, a rear cabinet 2 coupled to an upper portion of the base 1, an open front surface, and a front surface of the cabinet 2. And a heat exchanger 30 that is installed in the upper part of the space formed by the rear cabinet 2 and the front cabinet 4 and exchanges heat with the air sucked indoors.

  Both sides of the front cabinet 4 are formed to be inclined, and the front cabinet 4 has an upper air outlet 4a formed in the upper portion 5 on the front surface and side air outlets 4b and 4c formed in the upper portions on the left and right sides. And side air inlets 4d and 4e formed on the left and right sides of the lower portion 6 of the front surface.

  In the front cabinet 4, the open / close panel 10 is installed on the front surface of the front cabinet 4 so that the upper air discharge port 4 a can be opened and closed, and the open / close panel 10 rises to close the upper air discharge port 4 a. In order to eliminate the step between the open / close panel 10 and the front cabinet 4, a front / rear moving panel 12 is installed on the front surface of the front cabinet 4 so as to be movable back and forth.

  Further, the left and right vanes 14 and 16 rotate in the front cabinet 4 so that the air direction of the air discharged through the side air outlets 4b and 4c can be adjusted simultaneously with opening and closing the side air outlets 4b and 4c. Left and right grills 7 and 8 are attached so as to be able to be opened and protected to protect the side air inlets 4d and 4e. The left and right grilles 7 and 8 have rear side air inlets 4d, An air filter (not shown) for removing foreign substances contained in the air that has passed through 4e is attached.

  The front cabinet 4 includes a driving means (not shown) such as a motor and a gear for moving the open / close panel 10 up and down, a driving means (not shown) such as a motor and a gear for moving the front / rear moving panel 2, and the left and right of each. A motor (not shown) for rotating the vanes 14 and 16 is provided.

  When an air blower 20 is driven, a general air conditioner indoor unit configured as described above moves indoor air through the left and right suction grills 7 and 8 and an air filter (not shown). The air from which foreign substances such as dust are removed is blown into the heat exchanger 30 for heat exchange, and then discharged into the room through the air discharge ports 4a, 4b, 4c, thereby cooling the room. Heat up.

  However, the indoor unit configured as described above has the following problems.

  First, after the air is sucked in through the suction ports formed on both side surfaces of the front cabinet, it is discharged to the air discharge ports formed on the front surface and both side surfaces of the front cabinet, so that the suction noise is generated. It occurs greatly.

  Secondly, when the air filter 9 is cleaned or replaced, the left and right suction grills 7 and 8 must be opened, and the air filter 9 must be separated from the back of the left and right suction grills 7 and 8. If the suction grills 7 and 8 are frequently opened and closed, the connecting portions are easily damaged.

  Third, since the left and right vanes 14 and 16 can seal only the side air discharge ports 4b and 4c, dust and the like can flow in through the suction grilles 7 and 8 and the suction ports 4d and 4e when the operation is stopped. Since the suction grills 7 and 8 and the vanes 14 and 16 are mounted on both sides of the front cabinet 4, the structure is complicated, and the suction grilles 7 and 8 and the vanes 14 and 16 are individually manufactured. Cost increases.

  Fourth, since the upper part of the heat exchanger 30 can be seen behind the upper air outlet 4a, the appearance is not good, and the structure of the front cabinet 4 is complicated by the open / close panel 12 and the front / rear moving panel 12, and the color of the front cabinet 4 Changes are not easy.

  In response to the above-described needs, development of an indoor unit for a separation-type air conditioner having a simplified structure while reducing air intake noise generated in the indoor unit is required.

  The present invention is to solve the above-described problems, and an object of the present invention is to provide an indoor unit for an air conditioner that minimizes air intake noise.

  Another object of the present invention is to provide an air conditioner room having a side vane that opens and closes both an air inlet and an air outlet formed on a side surface of the front cabinet and prevents foreign substances from flowing into the air inlet. Is to provide a machine.

  Still another object of the present invention is to provide an air conditioner indoor unit in which an air purifier that removes foreign substances from intake air can be easily attached and detached, and various configurations provided in the cabinet can be easily cleaned and repaired. There is.

In order to achieve the above object, an indoor unit for an air conditioner according to the present invention includes a base, a rear cabinet having a front surface opened, and a front cabinet coupled to the front surface of the rear cabinet and having a rear surface opened. provided, suction and blower to force the flow of air therein, a cabinet and a heat exchanger, provided on three sides of the both side surfaces of the lower front and the front cabinet of the cabinet, the indoor air inside the cabinet And an air outlet that is provided on three surfaces of the upper surface and both upper side surfaces of the cabinet and that discharges air in three directions into the room where heat is exchanged inside the cabinet. this, including rotatably provided in said cabinet, said each air discharge port, the vane to selectively open and close the respective air inlet The features.

  The cabinet includes a base, a rear cabinet provided at a rear side of the upper surface of the base and having a front surface opened, and a front cabinet provided at a front side of the upper surface of the base and coupled to a front end of the rear cabinet. .

  The air inlet includes a front air inlet provided on a front surface of the base and side air inlets provided on both side surfaces of a lower portion of the front cabinet.

  The air outlet includes an upper air outlet provided on the upper surface of the front cabinet and side air outlets provided on both side surfaces of the upper portion of the front cabinet.

  A front panel is rotatably connected to one of the cabinets, covers a front surface of the cabinet, and forms an appearance of the front surface of the cabinet.

  The indoor unit for an air conditioner further includes at least one auxiliary air inlet provided at a lower portion of the cabinet.

As another form, the indoor unit for an air conditioner according to the present invention is provided with a base, a rear cabinet provided at an upper portion of the base and having a front surface opened, and provided in front of an upper surface of the base. A front cabinet coupled to the front end and having a rear surface opened, upper air outlets provided on an upper surface of the front cabinet, side air outlets provided on both side surfaces of the upper part of the front cabinet, and a front surface of the base A front air inlet provided, side air inlets provided on both side surfaces of the lower part of the front cabinet, and a front panel rotatably connected to the front cabinet and covering the front of the front cabinet, the front cabinet is rotatably mounted on the front cabinet, the upper air discharge opening, the side air discharge port The front air inlet, and characterized in that it comprises a vane to selectively open and close the side air inlet.

  Here, the upper air outlet is formed on the upper surface of the front cabinet.

  The front cabinet has opposite side surfaces that are inclined with respect to the front surface of the front cabinet so that the horizontal section expands toward the rear.

  The front cabinet includes an air purifier that filters foreign substances contained in room air sucked through the front air inlet and the side air inlet.

  The air purification device is provided at the rear of both side surfaces of the lower part of the front cabinet, and is provided with a side filter for filtering foreign substances contained in the air sucked through the side air suction port, and an upper part of the base. And a lower filter assembly for filtering foreign substances contained in the air sucked through the front air inlet.

  The base includes at least one auxiliary air inlet. Here, the auxiliary air inlet is formed on at least one of the rear surface and the side surface of the base.

As another form, the indoor unit for an air conditioner according to the present invention includes a base, a rear cabinet provided at an upper portion of the base and having a front surface opened, and seated on the base, and is attached to a front end of the rear cabinet. A front cabinet having a rear surface and a front lower portion opened; an upper air outlet provided on an upper surface of the front cabinet; a side air outlet provided on both side surfaces of the upper portion of the front cabinet; and Included in the front air inlet provided on the front, side air inlet provided on both sides of the lower part of the front cabinet, and air sucked through the front air inlet provided on the upper part of the base a lower filter assembly for filtering foreign substances, provided inside of the side air inlet, contained in the air sucked through the side air inlet And a side filter for filtering foreign materials, is rotatably connected with one side upper and lower ends, respectively to one side upper and lower ends hinged portion or rotating connection portion of the front cabinet, the front panel forming the front appearance of the front cabinet The lower filter assembly and the side filter are inserted / extracted through a lower part of the opened front surface of the front cabinet in a state where the front panel is open. .

The front cabinet has a side discharge vane that selectively opens and closes the side air discharge port,
A side suction vane that selectively opens and closes the side air inlet.

  Of the side surface discharge vane and the side surface suction vane, a side surface discharge vane provided on the same side as the front cabinet and the side surface suction vane are integrally formed and opened and closed together.

  The front cabinet includes an upper vane that selectively opens and closes the upper air outlet and guides the air discharged through the upper air outlet forward.

  The indoor unit for an air conditioner according to the present invention has the following effects.

  First, since the indoor unit for an air conditioner according to the present invention sucks and discharges air from the three surfaces of the front cabinet, air intake noise is minimized, and heat is exchanged and purified in all directions in the room. Air is supplied.

  Secondly, according to the indoor unit of an indoor unit for an air conditioner according to the present invention, the air purification device can be easily and easily attached and detached, and there is no risk of damage to peripheral components during attachment and detachment.

  Thirdly, according to the indoor unit for an air conditioner according to the present invention, repair and cleaning work of the heat exchanger and the blower housed in the cabinet is performed with only the front panel opened. Therefore, the heat exchanger and the blower can be easily repaired and cleaned.

  Fourthly, according to the indoor unit for an air conditioner according to the present invention, a front panel that forms the exterior of the front of the indoor unit is provided, and devices such as a heat exchanger inside the cabinet cannot be seen from the front, so that the aesthetics are good. Improved and easy to change the front hue.

  Fifth, the indoor unit for an air conditioner according to the present invention can prevent penetration of foreign substances when the operation is stopped by a vane that opens and closes the air suction port and the air discharge port. And the side suction vane are integrally configured and opened and closed together by a single motor, the structure is simple and the assembly is easy.

  Sixth, in the indoor unit for an air conditioner according to the present invention, the upper air discharge port is formed on the upper surface of the front cabinet, and the flow resistance to the air discharged upward by the blower is reduced. An overload of the motor to be driven is prevented, and the air is smoothly discharged into the room through the upper air discharge port.

  Hereinafter, preferred embodiments of the present invention in which the objects of the present invention can be specifically realized will be described in detail with reference to the accompanying drawings. Here, the same name and the same code | symbol are attached | subjected about the same structure, and the additional description is abbreviate | omitted below.

  4 to 11, an embodiment of an indoor unit for an air conditioner according to the present invention includes a cabinet in which air suction ports 70a, 70b, 70c and air discharge ports 72a, 72b, 72c are formed. The fan 80 installed in the lower space inside the cabinet, and the heat exchanger 90 installed on the upper side of the fan 80 so that the air that is forced to flow by the fan 80 is heat-exchanged with the refrigerant. .

  The cabinet includes a base 50 and a rear cabinet 60 and a front cabinet 70 that are respectively installed on the upper surface of the base 50. Here, the rear cabinet 60 is formed in a trapezoidal shape whose front surface is opened and the shape of the horizontal section increases toward the front. When the indoor unit is installed at a corner of the room, the space utilization degree in the room is improved.

  The front cabinet 70 is coupled to the front end of the rear cabinet 60, has a horizontal cross section that expands toward the rear, and has a ladder shape with an open rear surface. The left and right side surfaces 73 and 74 are inclined with respect to the front surface 71. And an upper surface 72 perpendicular to the front surface 71.

  The air inlets 70a, 70b, and 70c are formed in a horizontally long shape on the front surface of the base 50, and are formed in a vertically long shape on the front air inlet port 70a through which the intake air from the room passes and on both side surfaces 73a and 74a at the lower part of the front cabinet 70. The side air inlets 70b and 70c allow the intake air from the room to pass therethrough.

  The air discharge ports 72a, 72b, 72c are formed in a horizontally long shape on the upper surface 72 of the front cabinet 70, and an upper air discharge port 72a through which air that has undergone a heat exchange process with the heat exchanger is discharged into the interior of the cabinet. It is formed by side air outlets 72b and 72c which are formed vertically on both side surfaces 73b and 74b of the upper part of the front cabinet and through which air having undergone a heat exchange process with the heat exchanger 90 is discharged to the side of the cabinet. Has been.

  With the air inlets 70a, 70b, 70c configured as described above and the air outlets 72a, 72b, 72c, the indoor unit sucks air into three surfaces and then discharges air onto the three surfaces.

  In addition to the above configuration, the base 50 further includes auxiliary air inlets formed on both side surfaces and the back surface of the rear portion. In this case, since indoor air can be sucked in a total of six directions via the front air inlet 70a, the auxiliary air inlet, and the side air inlets 70b and 70c, more rapid indoor air conditioning is possible.

  The base 50 is rotatably provided with a lower vane 74 that selectively opens and closes the front air inlet 70a. An upper air outlet 72a is selectively opened and closed at the upper portion of the front cabinet 70. An upper vane 75 that adjusts the wind direction is rotatably installed so that the air discharged into the room through the air discharge port 72a is discharged in front of the indoor unit.

  Further, side discharge vanes 76a and 76b that selectively open and close the side air discharge ports 72b and 72c and side suction vanes 77a and 77b that selectively open and close the side air intake ports are provided on the side surface of the front cabinet 70. Installed.

  Of the side discharge vanes 76a and 76b, the one installed on the left side surface 73b of the front cabinet 70 is called the left side discharge vane 76a, and the one installed on the right side surface 74b of the front cabinet 70 is called the right side discharge vane 76b. Of the side suction vanes 77a and 77b, the one installed on the left side surface 73a of the front cabinet 70 is called the left side suction vane 77a, and the one installed on the right side surface 74a of the front cabinet 70 is called the right side suction vane 77b.

Based on FIGS. 8 and 9, the lower vane 74 and the upper vane 75 will be described in more detail.
8 and 9 are cross-sectional views showing a state in which the front air inlet 70a and the upper air outlet 72a are opened by the lower vane 74 and the upper vane 75, respectively.

  Referring to FIG. 8, the lower vane 74 is rotatably connected to both side surfaces of the front air inlet 72 a of the base 50 so as to open and close the front air inlet 70 a and guide the intake of air.

  The lower vane 74 is configured to seal the front air inlet 70a when the indoor unit is not operating, and to open the front air inlet 70a when the indoor unit is operating. For this purpose, the lower vane 74 projects vertically from both ends of the suction guide portion 74a that guides air to the upper side of the base 50 that is sucked when the indoor unit operates and the length direction of the suction guide portion 74a. It includes projections 74b and 74c which are the center.

  Here, the protrusions 74b and 74c of the lower vane 74 are rotatably inserted into support grooves 50b and 50c respectively formed on the inner walls on both sides of the front air inlet 70a, and any one of the protrusions 74c is inserted into the protrusion 74c. Rotating means 130 such as a motor for rotating the lower vane 74 in accordance with a command from the control unit is connected.

Next, referring to FIGS . 9 and 10, the upper vane 75 opens and closes the upper air discharge port 72 a and simultaneously guides the discharge of air so that the upper air is disposed on the upper surface of the front cabinet 70. The discharge port 72a is rotatably connected.

The upper vane 75 is configured to seal the upper air outlet 72a when the indoor unit is not operating, and to open the upper air outlet 72a when the indoor unit is operating.
For this purpose, the upper vane 75 protrudes vertically from both ends in the length direction of the discharge guide portion 75a and the discharge guide portion 75a for guiding the air discharged during the operation of the indoor unit to the front of the cabinet, Projections 75b and 75c.

The protrusions 75b and 75c of the upper vane 75 are rotatably inserted into support grooves 71a and 71b respectively formed on inner walls on both sides of the upper air discharge port 72a, and any one of the protrusions 75c includes Rotating means such as a motor for rotating the upper vane 75 is connected.

The configurations of the left and right discharge vanes 76a and 76b and the left and right suction vanes 77a and 77b are similar to those of the lower vane 74 and the upper vane 75, and a description thereof will be omitted.
The upper vane 75 and the side discharge vanes 76a and 77b may be configured to automatically swing by a control unit (not shown).

  Inside the cabinet configured as described above, devices such as the blower 80 and the heat exchanger 90 are installed as described above.

  Referring to FIG. 10, the blower 80 sucks indoor air through the air suction ports 70a, 70b, and 70c, and the sucked air passes through the heat exchanger 90 and passes through the air discharge ports 72a, 72b, and 72c. Including a blower housing 81 installed in a lower space inside the cabinet, and a blower fan (not shown) installed inside the blower housing 81 as a device for forcing to be discharged through The front surface of the blower housing is opened and connected to an orifice 82 for guiding the air sucked through the air suction port. On the upper surface of the blower housing 81, an air discharge hole for discharging air upward where the heat exchanger 90 is located. (Not shown) is formed.

  The heat exchanger 90 is installed at an upper portion of the blower fan 80 and includes a refrigerant pipe through which the refrigerant passes and a plurality of pins attached to the refrigerant pipe. The heat exchanger 90 exchanges heat with air. A refrigerant pipe (not shown) for guiding the refrigerant evaporated or condensed to the outdoor unit is connected.

  A fan 92 is disposed below the heat exchanger 90 so that condensed water generated on the surface of the heat exchanger 90 and falling can be stored. One of the fans 92 stores the stored condensed water in the indoor unit. A drain hose (not shown) for draining to the outside is connected.

  On the other hand, the indoor unit of the air conditioner includes an air purifying device provided between the air inlets 70a, 70b, and 70c of the front cabinet 70 and the blower 80, and a front panel that forms the exterior of the front of the indoor unit. 100.

  Referring to FIGS. 10 and 11, the front panel 100 is rotatably connected to one of the front cabinets 70, covers the front surface 71 of the front cabinet 70, and has the appearance of the front surface of the indoor unit. The structure is easy to change.

  For this purpose, the upper right end of the front panel 100 is rotatably connected and supported by a rotary connecting portion such as a hinge connecting portion or an upper bracket 101 having a protrusion protruding downward on the right upper end of the front cabinet 70. The lower end of the right side of the front panel 100 is rotatably connected and supported by a rotary connection portion such as a hinge connection portion or a lower bracket 102 having a protrusion protruding upward at the right front end of the upper surface of the base 50. .

  On the left side of the rear surface of the front panel 100 and on the left side of the front surface 71 of the front cabinet, locking means such as magnets 103a and 103b for maintaining the closed state of the front panel 100 are provided. Of course, the front panel 100 may be connected to the left side of the cabinet. The locking means includes an elastic hook 103 provided on either the front cabinet 70 or the front panel 100 as shown in FIG. 13 showing a third embodiment of an indoor unit for an air conditioner described later. Various modifications are possible, such as being configured by the front cabinet 70 and the hook holder 103d provided on the other one of the front panels 100.

端面の内側の溝を有する四角フレーム１４０とを含む。ここで、四角フレーム１４０は、カラープレート１２０の取替えが可能なように、四角フレーム１４０の前方フランジまたは後方フランジが回転するか曲げやすいように構成されることが好ましい。 The front panel 100 includes a glass plate 110, a color plate 120 closely attached to the rear of the glass plate, a color plate 120, a rear plate 130 closely attached to the rear of the color plate, and a glass plate 110 closely attached to each other. , So as to surround the periphery of the color plate 120 and the rear plate 130

And a square frame 140 having a groove inside the end face. Here, the square frame 140 is preferably configured so that the front flange or the rear flange of the square frame 140 can be rotated or bent so that the color plate 120 can be replaced.

  With the above configuration, when the user wants to change the color and design of the front panel, the color and design of the front panel 100 can be changed by replacing the color plate 120.

  Further, the front panel 100 includes a display unit 121 that displays an operation mode of the operation information of the air conditioner, a desired temperature, and the like.

On the other hand, the indoor unit for an air conditioner according to the present invention is configured such that the user can clean, repair, or replace the heat exchanger 90, the blower 80, and the air purifier with the front panel 100 opened.
For this purpose, an opening hole 75 having a predetermined size is formed in the upper front surface of the front cabinet 70 to expose the heat exchanger 90, and lower side surfaces 73a and 74a on which side air inlets 70b and 70c are formed. The front surface in between is an opening.

  The lower side surfaces 73a and 74a are detachably connected to the lower ends of the upper side surfaces 73b and 74b where the side air discharge ports 72b and 72c are formed. In order to connect the lower side surfaces 73a and 74a to the lower ends of the upper side surfaces 73b and 74b, first fastening holes 73c and 74c are formed at one of the upper ends of the lower side surfaces 73a and 74a, respectively. Second fastening holes 73d and 74d corresponding to the first fastening holes 73c and 74c are formed on both sides of the lower end of the upper front surface, and are fixed to each other by a bolt S1.

  Further, coupling protrusions 73e and 74e projecting downward are formed on the lower ends of the lower side surfaces 73a and 74a, respectively, and coupling grooves 51 into which the coupling projections 73e and 74e are inserted on both sides of the upper surface of the base 50, 52 is formed to join the front cabinet 70 and the base 50 together.

  On the other hand, a shielding plate 131 for preventing air leakage through the opening hole 71c is disposed on the rear surface of the front panel at a position corresponding to the opening hole 71c formed in the upper front surface of the front cabinet 70. preferable.

  Next, with reference to FIGS. 10 and 11, the air purification apparatus for removing various foreign substances in the indoor air sucked into the cabinet through the air suction ports 70a, 70b, 70c will be described. To do.

  The air purification device includes side filters 210 and 220 disposed inside the side air inlets 70b and 70c, a lower filter assembly 230 disposed on an upper portion of the base 50 where the front air inlet 70a is formed, Is provided.

Here, the side filters 210 and 220 are inserted and pulled out by sliding in front of the cabinet with the front panel 100 open.
For this purpose, filter guides 73f and 74f into which the side filters 210 and 220 are inserted are provided on the inner walls of the lower side surfaces 73a and 74a of the lower part of the front cabinet 70, respectively. Here, the side filters 210 and 220 may have various structures such as a mesh filter that filters out foreign substances such as dust.

The lower filter assembly 230 has a structure in which a plurality of filters 231, 232, and 233 are arranged vertically.
More specifically, the lower filter assembly 230 is disposed above the first filter 231 mounted on the upper portion of the base, the second filter 232 disposed above the first filter 231, and the second filter 232. A third filter 233 is included.

  The first filter 231 includes a front air suction port 70 a and a mesh filter that filters foreign substances such as dust in the intake air guided to the upper side of the base 50 by the lower vane 74.

状に向き合うように突出して、第１フィルタ２３１の両側をガイドしかつ支持する第１フィルタガイド２３１a、２３１bが設けられるし、第１フィルタ２３１の両側端の下面は、ベース５０によって支持され、第１フィルタ２３１の両側面と両側端の上面は、第１フィルタガイド２３１a、２３１bによって支持される。 Then, the first filter 231 is slidingly inserted in front of the cabinet through the lower opening of the front cabinet on both sides of the upper surface of the base 50, respectively.

The first filter guides 231a and 231b projecting so as to face each other and guiding and supporting both sides of the first filter 231 are provided, and the lower surfaces of both side ends of the first filter 231 are supported by the base 50, and The both side surfaces of the first filter 231 and the upper surfaces of the two side ends are supported by first filter guides 231a and 231b.

  Next, the second filter 232 and the third filter 233 are mounted inside a separate filter frame 234 and are disposed above the first filter 231.

  The second filter 232 is a hepa filter, a nano-carbon filter disposed above the hepa filter, and an upper portion of the nano-carbon filter, and the carbon of the nano-carbon filter is blown off. It is preferable to include a non-woven fabric that prevents this and a support frame that supports the filter.

  The third filter 233 includes a nano copper filter, a nano silver filter, and a support frame that supports the nano copper filter and the nano silver filter.

  The filter frame 234 is provided on the upper side of the first filter 231. The filter frame 234 accommodates the second filter 232 and the third filter 233. The fastening hole 53 formed on the upper surface of the base and the both side surfaces of the filter frame 234 are provided. The bolt S2 is fastened to a fastening hole 234a formed in a protruding portion protruding laterally at the lower end and fixed to each other.

  In order to facilitate the mounting of the filter frame 234, it is preferable that an alignment protrusion (not shown) for aligning the position of the protrusion of the filter frame is formed on the upper surface of the base 50. The alignment protrusion protrudes upward so as to support a part or all of the outer profile of the protrusion of the filter frame. Therefore, when the protrusion is brought into contact with the align protrusion when the filter frame is mounted, the filter frame 234 is loaded at an accurate position above the base 50.

  The filter frame 234 will be described in more detail. In the filter frame, the air sucked through the front air suction port 70a passes through the first filter 231 and passes through the filter frame from the lower part to the upper part. The upper and lower surfaces are open so as to be purified by the third filter 233. In addition, the front surface is open so that the second filter 232 and the third filter 233 are inserted and pulled out in front of the filter frame 234.

  A lower support guide 234b that supports and guides the second filter 232 is provided on the inner wall of the lower portion of the filter frame 234, and an upper portion that supports and guides the third filter 233 above the lower support guide 234b. Guides 234c are provided, and at the upper ends of both side surfaces of the filter frame, detachment prevention protrusions 234e formed to protrude inward to prevent the third filter 233 from detaching upward from the filter frame 234 are formed.

  Here, the lower support guide 234b connects the front end support base that supports the front end of the second filter 232, the front end support base, and the rear inner wall of the filter frame, and the lower surface of the second filter. A plurality of lower surface support bases. Since the upper support guide 234c is similar in shape to the lower support guide 234b, its description is omitted.

In addition to the above configuration, a photocatalytic plasma air purifier 240 is installed at the top of the multilayer filter, that is, in front of the blower 80.
The photocatalytic plasma air cleaner 240 includes a high voltage generator, an ionization unit, a collection unit, and a photocatalytic filter. Here, the high voltage generation unit applies a high voltage to the ionization unit to induce discharge. And the said ionization part ionizes the dust etc. in the air with the energy which generate | occur | produced at the time of the said discharge, and irradiates light energy. The collection unit collects the ionized dust and the like, and the photocatalytic filter collects odor particles decomposed by light energy emitted from the ionization unit.

  At the upper part of the photocatalytic plasma air cleaner 240, a control box 250 is provided in which electric parts for controlling the motors connected to the vanes 74, 75, 76a, 76b, 77a, 77b are installed.

  When the front panel 100 is opened by the indoor unit according to the present invention configured as described above, as shown in FIG. 11, the heat exchanger is exchanged through the opening hole 71c formed in the upper front surface of the front cabinet 70. 90 is exposed, and the blower 80 and the air purifying device are exposed through the opened lower portion of the front cabinet 70. Therefore, the user cleans or repairs the devices such as the heat exchanger 80 and the blower 80 in front of the indoor unit. For example, the filters 210, 220, 231, 232, and 233 can be inserted and pulled out for cleaning and replacement.

Next, with reference to FIG.12 and FIG.13, 2nd Embodiment and 3rd Embodiment of the indoor unit for air conditioners concerning this invention are described.
Here, FIG. 12 is a perspective view showing a second embodiment of the indoor unit for an air conditioner according to the present invention, and FIG. 13 is a perspective view showing a third embodiment of the indoor unit for an air conditioner according to the present invention. FIG.
In 2nd Embodiment and 3rd Embodiment of the said indoor unit, the remaining structure except the both side surfaces 73 and 74 of a front cabinet is the same as said 1st Embodiment.

  Referring to FIG. 12, in the second embodiment of the indoor unit for an air conditioner according to the present invention, suction grilles 78 are provided on both side surfaces of the lower part of the front cabinet 70 where the side air inlet is formed.

  Referring to FIG. 13, a left vane (not shown) is formed on the left side surface of the front cabinet 70 provided in the third embodiment of the indoor unit for an air conditioner according to the present invention. The air inlet is opened and closed simultaneously, and a right vane 79 is formed on the right side surface of the front cabinet 70 to open and close the right air outlet and the right air inlet simultaneously. Since the remaining configuration is the same as or similar to that of the first embodiment as described above, the description thereof is omitted.

  Hereinafter, the operation of the indoor unit for an air conditioner according to the present invention configured as described above will be described based on the first embodiment.

  First, when power is applied to the air conditioner and a cooling or heating operation mode is input, upper and lower vanes 74 and 75, and side discharge vanes 76a and 76b installed on the sides of the front cabinet, The side suction vanes 77a and 77b are rotated by the motors to open the air suction ports 70a, 70b and 70c and the air discharge ports 72a, 72b and 72c.

  Then, while the blower 80 is driven, indoor air is sucked into the cabinet through the air suction ports 70a, 70b, 70c. The sucked air is purified while passing through the side filters 210 and 220 and the lower filter assembly 230 that constitute the air purification device.

  More specifically, the air sucked through the air suction port 70 a on the front surface of the base 50 sequentially passes through the first filter 231, the second filter 232, and the third filter 233 of the lower filter assembly 230. Air that is purified while passing through and sucked through the air inlets 70 b and 70 c on the side surface of the front cabinet 70 is purified while passing through the side filters 210 and 220. Here, when the indoor unit operates mainly for air purification, the indoor unit is operated with the side intake vanes 77a and 77b closed and only the lower vane 75 open, and the front air intake port 70a is operated. Since air is sucked only through the air, only the fine dust is removed by the lower filter assembly 230, and the air discharged into the room is cleanly purified.

  Next, the air purified by passing through the filters 210, 220, 231, 232, 233 passes through the photocatalytic plasma air purifier 240 located in front of the blower 80, and the photocatalytic plasma air purifier 240 in the above process. Dust and odor particles in the air that pass through are ionized and collected.

  The air purified as described above is blown to the heat exchanger 90 side by the blower 80, and then passed through a heat exchange process with the refrigerant flowing inside the heat exchanger, and then cooled or heated in the air discharge state. The air is discharged into the room through the outlets 72a, 72b, 72c, and the room is cooled or heated.

  On the other hand, when foreign substances such as dust overlap on the filters 231, 232, 233 of the lower filter assembly 230 and the side filters 210, 220 due to long-term use of the air purification device provided in the indoor unit, the user The front panel 100 can be opened, and the filters 231, 232, 233 and the side filters 210, 220 of the lower filter assembly can be easily pulled out to the front of the front cabinet 70 through the opened lower part.

Then, after inserting and assembling the cleaning filter or a new filter, the front panel 100 is rotated and closed.
Also, when repairing or cleaning devices such as the heat exchanger 90 and the blower 80, the heat exchanger 90 and the blower 80 are cleaned or repaired through the opening hole 71c with the front panel 100 opened. Can be easily done.

  Next, when the user wants to change the front color of the indoor unit, the front color of the indoor unit can be changed easily and easily by replacing the existing color plate 120 mounted on the front panel 100 with a new color plate. it can.

In a general indoor unit for air conditioners, it is a perspective view showing the sealed state of an air outlet. It is a perspective view which shows the open state of an air discharge port in the general indoor unit for air conditioners. It is a front view which shows the open state of the air discharge port in the general indoor unit for air conditioners. 1 is a perspective view showing an open state of an air inlet and an air outlet in an embodiment of an indoor unit for an air conditioner according to the present invention. 1 is a front view showing an open state of an air inlet and an air outlet in an embodiment of an indoor unit for an air conditioner according to the present invention. 1 is a perspective view showing a sealed state of an air inlet and an air outlet in an embodiment of an indoor unit for an air conditioner according to the present invention. FIG. 2 is a front view showing a sealed state of an air inlet and an air outlet in an embodiment of the indoor unit for an air conditioner according to the present invention. It is sectional drawing which shows the open state of the lower vane which opens and closes the front air inlet of the indoor unit for air conditioners which concerns on this invention. It is sectional drawing which shows the open state of the upper vane which opens and closes the upper air discharge opening of the indoor unit for air conditioners which concerns on this invention. It is a perspective view which decomposes | disassembles and shows one Embodiment of the indoor unit for air conditioners which concerns on this invention. In the indoor unit for air conditioners which concerns on this invention, it is a perspective view which shows the open state of a front panel. It is a perspective view which shows other embodiment of the indoor unit for air conditioners which concerns on this invention. It is a perspective view which shows other embodiment of the indoor unit for air conditioners which concerns on this invention.

Explanation of symbols

50 Base 60 Rear cabinet 70 Front cabinet 70a Front air inlet 70b, 70c Side air inlet 72a Upper air outlet 72b, 72c Side air outlet 74 Lower vane 75 Upper vane 76a, 76b Side outlet vane 77a, 77b Side inlet vane 80 Blower 90 Heat exchanger
100 Front panel 210, 220 Side filter 230 Lower filter assembly

Claims (16)

Base, front open rear cabinets, and aft are coupled to the front of the cabinet, and comprises a front cabinet rear is opened, a blower that forces the flow of air into, a cabinet and a heat exchanger ,
An air inlet provided on three sides of the front side of the cabinet and the lower side of the front cabinet, and for sucking indoor air into the cabinet;
An air outlet provided on three sides of the upper surface and both upper side surfaces of the cabinet, and for discharging air in three directions into the room heat-exchanged inside the cabinet;
The cabinet is
An indoor unit for an air conditioner including a vane that is rotatably provided in the cabinet and that selectively opens and closes the air discharge ports and the air suction ports. The rear cabinet is provided behind the upper surface of the base,
The indoor unit for an air conditioner according to claim 1, wherein the front cabinet is provided in front of an upper surface of the base . The air inlet is
A front air inlet provided in front of the base;
Side air inlets provided on both side surfaces of the lower part of the front cabinet,
The indoor unit for an air conditioner according to claim 2, comprising: The air outlet is
An upper air outlet provided on the upper surface of the front cabinet;
Side air outlets provided on both side surfaces of the upper part of the front cabinet,
The indoor unit for an air conditioner according to claim 3, comprising:   The indoor unit for an air conditioner according to claim 1, further comprising a front panel that is rotatably connected to one of the cabinets, covers a front surface of the cabinet, and forms an appearance of the front surface of the cabinet.   The indoor unit for an air conditioner according to claim 1, further comprising at least one auxiliary air inlet provided in a lower portion of the cabinet. Base and
A rear cabinet provided at the top of the base and having an open front;
A front cabinet provided in front of the upper surface of the base, coupled to a front end of the rear cabinet, and having a rear surface open;
An upper air outlet provided on the upper surface of the front cabinet;
Side air outlets provided on both side surfaces of the upper part of the front cabinet;
A front air inlet provided in front of the base;
Side air inlets provided on both side surfaces of the lower part of the front cabinet;
A front panel rotatably connected to the front cabinet and covering a front surface of the front cabinet;
With
The front cabinet is
An air conditioner that is rotatably installed in the front cabinet and includes a vane that selectively opens and closes the upper air outlet, the side air outlet, the front air inlet, and the side air inlet. Indoor unit for machine. The front cabinet is
The indoor unit for an air conditioner according to claim 7 , comprising both side surfaces inclined with respect to a front surface of the front cabinet so that a horizontal section extends toward the rear . The front cabinet is
The air conditioner room according to claim 7, further comprising an air purifier that filters foreign substances contained in room air sucked through the front air inlet and the side air inlet. Machine. The air purifier is
A side filter that is provided behind both side surfaces of the lower portion of the front cabinet and filters foreign substances contained in the air sucked through the side air inlet;
The air conditioner according to claim 9, further comprising: a lower filter assembly provided at an upper portion of the base and configured to filter foreign substances contained in air sucked through the front air suction port. Indoor unit. The indoor unit for an air conditioner according to claim 7, wherein the base includes at least one auxiliary air inlet . The auxiliary air inlet is
The indoor unit for an air conditioner according to claim 11, wherein the indoor unit is formed on at least one of a rear surface and a side surface of the base . Base and
A rear cabinet provided at the top of the base and having an open front;
A front cabinet that is seated on the base, provided at the front end of the rear cabinet, and whose rear and front lower portions are open,
An upper air outlet provided on the upper surface of the front cabinet;
Side air outlets provided on both side surfaces of the upper part of the front cabinet;
A front air inlet provided in front of the base;
Side air inlets provided on both side surfaces of the lower part of the front cabinet;
A lower filter assembly provided at an upper part of the base and filtering foreign substances contained in air sucked through the front air inlet;
A side filter that is provided inside the side air inlet and filters foreign substances contained in the air sucked through the side air inlet;
A front panel that is rotatably connected to the upper and lower ends of one side of the front cabinet by a hinge connecting portion or a rotary connecting portion, respectively, and that forms the front of the front cabinet;
With
The room for an air conditioner is characterized in that the lower filter assembly and the side filter are inserted / extracted through a lower part of the opened front surface of the front cabinet with the front panel open. Machine. The front cabinet is
A side discharge vane that selectively opens and closes the side air discharge port;
The indoor unit for an air conditioner according to claim 13, further comprising a side suction vane that selectively opens and closes the side air inlet . The side discharge vane and the side suction vane provided on the same side as the front cabinet of the side discharge vane and the side suction vane, and the side suction vane are integrally formed and opened and closed together. The indoor unit for an air conditioner described. The front cabinet is
The indoor unit for an air conditioner according to claim 13 , further comprising an upper vane that selectively opens and closes the upper air outlet and guides the air discharged through the upper air outlet forward .

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