Air conditioner

An air conditioner is provided that may include a case in which a heat exchanger is disposed and having an air inlet and an air outlet; a discharge pipe that communicates with the air outlet and extends outside of the case; and a kit having a discharge port in which the discharge pipe is fixed, and configured to be disposed at a window frame. The kit may include a main board in which the discharge port is formed; at least one sub-board configured to be movable up and down with respect to the main board; a rack connected with one of the main board or the at least one sub-board and forming a plurality of grooves spaced apart from each other in an upward-downward direction; and a holder connected with the other one of the main board or the at least one sub-board and having a protrusion inserted into one of the plurality of grooves to restrict upward-downward movement of the at least one sub-board.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application claims priority under 35 U.S.C. § 119 to Korean Application No. 10-2021-0021303, filed in Korea on Feb. 17, 2021, whose entire disclosure is hereby incorporated by reference.

BACKGROUND

An air conditioner is disclosed herein.

A portable air conditioner includes a heat pump, which includes a compressor, two heat exchangers, and an expansion valve, in a case. A blowing fan that moves air, which has exchanged heat through one heat exchanger, to an indoor space and a discharge pipe that discharges air that has exchanged heat with the other heat exchanger are disposed in the case of a portable air conditioner. The discharge pipe may have a long or extended pipe shape to discharge the air, which has exchanged heat in the portable air conditioner, to the outside.

A kit that fixes a discharge pipe is disposed on a window frame so that air is smoothly discharged to the outside through the discharge pipe. However, there is no structure that adjusts the height of the kits in accordance with various heights of window frames to fix the kits to the window frames in the related art, so there is a problem in that external air flows inside through a window.

Further, there is a problem in the related art in that even if the height of a kit can be adjusted, the gap between the kit and a window frame is not sealed well, so external air flows inside through the gap. Furthermore, there is a problem in that because the height of a kit is adjusted by fastening a screw, the kit is easily damaged by external forces.

A structure that adjusts the height of a kit by fastening a screw has been disclosed in Korean Publication No. 20-2008-0004797, which is hereby incorporated by reference, but there is a problem in that the screw is damaged by external forces, so that a lifespan of the kit is short. Further, there is no structure for sealing the gap between the kit and a window frame, so external air flows inside through the gap.

DETAILED DESCRIPTION

Advantages and features of embodiments, and methods of achieving them will be clear by referring to exemplary embodiments that will be describe hereafter with reference to the accompanying drawings. However, the embodiments are not limited to the exemplary embodiments described hereafter and may be implemented in various ways, and the exemplary embodiments are provided to complete the description and let those skilled in the art completely know the scope and the embodiments are defined by claims. Like reference numerals indicate like components throughout the specification.

Hereinafter, an air conditioner according to embodiments will be described with reference to the drawings.

An installation structure of an air conditioner will be described with reference toFIG.1.FIG.1shows an installation structure of a case10, a discharge pipe20, and a kit100. An air conditioner may include case10having a heat exchanger (not shown) disposed therein, an air inlet11, and air outlets12and13; discharge pipe20that communicates with the air outlet13and extends outside of the case10; and kit100having a discharge port100sto which the discharge pipe20is fixed, and configured to be fixed to a window frame40.

A first heat exchanger (not shown) and a second heat exchanger (not shown) through which air flowing inside through the air inlet11exchanges heat may be disposed in the case10. The first heat exchanger (not shown) and the second heat exchanger (not shown) may be connected with each other through a refrigerant pipe (not shown), and an expansion device (not shown) may be disposed on the refrigerant pipe (not shown).

Some of the air flowing into the case10through the air inlet11may exchange heat through the first heat exchanger (not shown) and then may be supplied to the interior through the first outlet12. The other of the air flowing in the case10through the air inlet11may exchange heat through the second heat exchanger (not shown) and then may flow to the discharge pipe20through the second outlet13.

A first channel (not shown) through which the air flowing into the case10through the air inlet11flows toward the first outlet12through the first heat exchanger (not shown) and a second channel (not shown) through which the air flowing into the case10through the air inlet11flows toward the second outlet13through the second heat exchanger (not shown) may be independently formed in the case10.

The discharge pipe20may communicate with the second outlet13and may extend toward an outdoor space. Air discharged out of the case10through the second outlet13may be discharged to the outdoor space through the discharge pipe20.

The kit100may be configured to be fixed to the window frame40and may be connected with the discharge pipe20. The kit100may fix the discharge pipe20such that the discharge pipe20is not movable. The discharge pipe20may be inserted and fixed in the discharge port100s. Air flowing through the discharge pipe20may be discharged to the outdoor space through the discharge port100s.

An entire external shape of the window frame40may be a rectangle. The window frame40may include an upper frame41connected with an upper portion of a window30, a lower frame42connected with a lower portion of the window30, and side frames43that connect the upper frame41and the lower frame42.

An entire external shape of the window30may be a rectangle and a plurality of windows may be disposed inside of the window frame40. The window30may include a first window frame31connected with the upper frame41, a second window frame32connected with the lower frame42, and a third window frame33that extends in an upward-downward direction and that connects the first window frame31and the second window frame32.

The kit100may be disposed between the side frame43and the third window frame33and may be connected with each of the upper frame41and the lower frame42.

Hereafter, a connection relationship of a main board110and sub-boards120and130will be described with reference toFIGS.2to4.FIG.2is a first state view in which first sub-board120is exposed upward from the main board110.FIG.3is a second state view in which the first sub-board120is hidden in the main board110.FIG.4is a third state view in which the first sub-board120is exposed upward from the main board110and second sub-board130is exposed downward from the main board110.

The kit100may include the first main board110having the discharge port100s, the first sub-board120at least partially disposed at an upper portion of the main board110, and the second sub-board130at least partially disposed at a lower portion of the main board110. The first sub-board120and the second sub-board130may be referred to as “sub-boards”. The sub-boards120and130may be disposed to be movable in the vertical direction with respect to the main board110.

The discharge port100smay be formed at a position close to the first sub-board120and the second sub-board130. The discharge port100smay be positioned closer to a board lower end110bthan a board upper end110aof the main board110.

The kit100may include holders140and160disposed at any one of the main board110and the sub-boards120and130, and racks150and170disposed at the other one of the main board110and the sub-boards120and130. The holders140and160may be disposed at the main board110. The holders140and160may include first holder140that restricts upward-downward movement of the first sub-board120and a second holder160that restricts upward-downward movement of the second sub-board130.

The first holder140may be disposed at the upper portion of the main board110and the second holder160may be disposed at the lower portion of the main board110. The first holder140and the second holder160may be disposed at ends of the main board110. The first holder140may be disposed at the board upper end110aof the main board110and the second holder160may be disposed at board lower end110bof the main board110.

The racks150and170may be disposed at the sub-boards120and130. The racks150and170may include first rack150disposed at the first sub-board120and second rack170disposed at the second sub-board130. The first rack150may extend in the upward-downward direction and may be disposed in parallel with the first sub-board120. The second rack170may extend in the upward-downward direction and may be disposed in parallel with the second sub-board130.

The kit100may include a supporter180that is attached/detached to/from at least any one of the sub-boards120and130. The supporter180may be selectively attached/detached to/from the main board110, the first sub-board120, and/or the second sub-board130.

Referring toFIG.2, the first sub-board120may be exposed upward from the main board110in the first state. In the first state, the second sub-board130may not be connected to the main board110.

The first holder140may be coupled to the first rack150and may restrict the first sub-board120. The first holder140may restrict upward-downward movement of the first sub-board120.

In the first state, a height of the kit100may be increased by a height of a first sub-board120exposed upward from the main board110, as compared with when only the main board110is disposed. In the first state, the supporter180may be connected to each of the main board110and the first sub-board120. A plurality of supporters180may be provided, for example, two supporters180may be provided. Any one of the plurality of supporters180may be connected to an upper side of the first sub-board120and the other one may be connected to a lower side of the main board110. The supporter180connected to the upper side of the first sub-board120may seal a portion between the first sub-board120and the upper frame41, and the supporter180connected to the lower side of the main board110may seal a portion between the main board110and the lower frame42.

Referring toFIG.3, the first sub-board120may be hidden inside of the main board110in the second state. In the second state, the second sub-board130may not be connected to the main board110.

The first holder140may be coupled to the first rack150and may restrict the first sub-board120. The first holder140may restrict upward-downward movement of the first sub-board120.

In the second state, the height of the kit100may be increased by height of the first sub-board120exposed upward from the main board110, as compared with when only the main board110is disposed. However, when the first sub-board120is fully hidden inside of the main board110, the height of the kit100may be the same as the height of the main board110.

In the second state, the supporter180may be connected to the main board110. A plurality of supporters180may be provided, for example, two supporters may be provided. Any one of the plurality of supporters180may be connected to the upper side of the main board110and the other one may be connected to the lower side of the main board110. The supporter180connected to the upper side of the main board110may seal the portion between the main board110and the upper frame41, and the supporter180connected to the lower side of the main board110may seal the portion between the main board110and the lower frame42.

Referring toFIG.4, the first sub-board120may be exposed upward from the main board110in the third state. In the third state, the second sub-board130may be connected to the main board110and may be exposed downward from the main board110.

The first holder140may be coupled to the first rack150and may restrict the first sub-board120. The first holder140may restrict upward-downward movement of the first sub-board120.

The second holder160may be coupled to the second rack170and may restrict the second sub-board130. The second holder160may restrict upward-downward movement of the second sub-board130.

In the third state, the height of the kit100may be increased by a sum of the height of the first sub-board120exposed upward from the main board110and the height of the second sub-board130exposed downward from the main board110, as compared with when only the main board110is disposed.

In the third state, the supporter180may be connected to each of the first sub-board120and the second sub-board130. A plurality of supporters180may be provided, for example, two supporters may be provided. Any one of the plurality of supporters180may be connected to the upper side of the first sub-board120and the other one may be connected to the lower side of the second sub-board130. The supporter180connected to the upper side of the first sub-board120may seal the portion between the first sub-board120and the upper frame41, and the supporter180connected to the lower side of the second sub-board130may seal the portion between the second sub-board130and the lower frame42.

A length H1of the first sub-board120may be smaller than a length H2of the second sub-board130. A length ratio of the first sub-board120and the second sub-board130may be 1:2.

The length H1of the first sub-board120may be smaller than a length H0of the main board110. The first sub-board120may be completely hidden inside of the main board110.

The length H0of the main board110may be smaller than the length H2of the second sub-board130. The second sub-board130may be only partially hidden inside of the main board110.

Hereafter, structure in which the sub-boards120and130are moved in the vertical direction in the main board110will be described with reference toFIGS.5and6.FIG.5shows the kit100cut along line V-V′ shown inFIG.6, andFIG.6shows a shape of the kit100seen from a front.

Referring toFIG.5, the main board110may include a main plate111at which the discharge port100sis formed, a first side plate118that protrudes rearward from the main plate111, and a second side plate119that protrudes rearward from the main plate111and is spaced apart from the first side plate118. The sub-boards120and130may be moved in the vertical direction between the first side plate118and the second side plate119.

The first side plate118and the second side plate119may be symmetrically formed with respect to each other. The first side plate118and the second side plate119may face each other with the main plate111therebetween.

A pair of side plates118and119may include a first wall112that protrudes rearward from the main plate111, a second wall113that extends toward a center portion of the main board110, a first pressing protrusion114that protrudes rearward from the second wall113, a third wall115that protrudes rearward from the second wall113, a fourth wall116that extends out of the main board110from the third wall115, and a second pressing protrusion117that protrudes forward from the fourth wall116. The second wall113and the fourth wall116may be disposed to face each other, and the first pressing protrusion114and the second pressing protrusion117may be disposed to face each other.

The first sub-board120and the second sub-board130may have the same horizontal cross-sectional shapes. Hereafter, the first sub-board120will be described for convenience of description, but the description for the first sub-board120may be the same as for the second sub-board130.

The first sub-board120may include a sub-plate121disposed to face the main plate111, a first sub-side plate122that protrudes rearward from the sub-plate121, a second sub-side plate123that protrudes rearward from the sub-plate121and spaced apart from the first sub-side plate122, a rear plate124that connects the first sub-side plate122and the second sub-side plate123and spaced rearward apart from the sub-plate121, a reinforcing plate125that protrudes forward from the rear plate124, and a recess129at which the rack150is disposed.

The sub-plate121may be disposed in close contact with the main plate111and may be disposed in parallel with the main plate111. The sub-plate121may include a first remainder121athat protrudes outward further than the first sub-side plate122and a second remainder121bthat protrudes outward further than the second sub-side plate123.

The first remainder121amay be inserted in the first side plate118and the second remainder121bmay be inserted in the second side plate119. The first remainder121aand the second remainder121bmay be inserted between the main plate111and the second wall113and may be restricted in outward movement by the first wall112.

Outward movement of the first sub-side plate122may be restricted by the first side plate118. In particular, outward movement of the first sub-side plate122may be restricted by the third wall115.

Outward movement of the second sub-side plate123may be restricted by the second side plate119. In particular, outward movement of the second sub-side plate123may be restricted by the third wall115.

The rear plate124may include a third remainder124athat protrudes outward further than the first sub-side plate122, a fourth remainder124bthat protrudes outward further than the second sub-side plate123, a first mounting protrusion124cthat protrudes forward from the third remainder124a, and a second mounting protrusion124dthat protrudes forward from the fourth remainder124b.

The first remainder124amay restrict rearward movement of the first side plate118. Rearward movement of the fourth wall116may be restricted by the first remainder124a. Outward movement of the fourth wall116may be restricted by the first mounting protrusion124c.

The first remainder124amay restrict rearward movement of the second side plate119. Rearward movement of the fourth wall116may be restricted by the second remainder124b. Outward movement of the fourth wall116may be restricted by the second mounting protrusion124d.

The reinforcing plate125may protrude forward from the rear plate124and may be connected with the recess129. The recess129may include a first recess wall126that protrudes rearward from the sub-plate121, a second recess wall127that protrudes rearward from the sub-plate121and spaced apart from the first recess wall126to form a space therebetween, and a supporting wall128that connects the first recess wall126and the second recess wall127.

The first recess wall126may include a first boundary wall126athat protrudes rearward from the sub-plate121, a second boundary wall126bthat extends toward a center portion of the sub-board120from the first boundary wall126a, a third boundary wall126cthat protrudes rearward from the second boundary wall126b, a fourth boundary wall126dthat extends outward from the third boundary wall126c, and a fifth boundary wall126ethat protrudes rearward from the fourth boundary wall126d. The second recess wall127may be formed symmetrically to the first recess wall126with the rack150therebetween. The second recess wall127, the same as the first recess wall126, may include a first boundary wall127a, a second boundary wall127b, a third boundary wall127c, a fourth boundary wall127d, and a fifth boundary wall127e.

The rack150may be disposed between the first recess wall126and the second recess wall127and rearward movement thereof may be restricted by the supporting wall128. Lateral or left-right movement of a plurality of partition protrusions152(seeFIG.8) described hereinafter may be restricted by the first recess wall126and the second recess wall127. Left-right movement of the partition protrusions152may be restricted by a pair of third boundary walls127c. Left-right movement of a rack frame151(seeFIG.8) described hereinafter may be restricted by the first recess wall126and the second recess wall127, and rearward movement thereof may be restricted by the supporting wall128. At least a portion of the rack frame151may be inserted between the fourth boundary wall127dand the supporting wall128and outward movement thereof may be restricted by the fifth boundary wall127e.

At least a portion of the holder160may be disposed between the first recess wall126and the second recess wall127and movement thereof may be restricted by the first recess wall126and the second recess wall127. At least a portion of the holder160may be disposed between a pair of first boundary walls126aand127a, and left-right movement thereof may be restricted by the pair of first boundary walls126aand127a. Rearward movement of at least a portion of the holder160may be restricted by a pair of second boundary walls126band127b.

The sub-board120may be moved in the vertical direction in an overlap space110s(seeFIG.13A) formed behind the main board110. The overlap space110smay refer to a space formed between the first side plate118and the second side plate119. The main plate111, the first side plate118, and the second side plate119may support the sub-board120such that the sub-board120is not separated from the main board110when the sub-board120is moved in the vertical direction.

Referring toFIG.6, the sub-board120may be at least partially hidden inside of the main board110while moving in the vertical direction in the overlap space110s. The holder140may restrict the sub-board120through coupling to the rack150such that the sub-board120is no longer moved in the vertical direction.

The sub-board120, in a restricted state, may be divided into a first part120aexposed upward from the main board110and a second part120bhidden inside of the main board110. The rack150positioned at the first part120amay be exposed upward from the main board110and the rack150positioned at the second part120bmay be hidden inside of the main board110. It is possible to increase a height of the kit100by a height of the first part120aby adjusting an exposure length of the first part120athrough coupling of the holder140and the rack150.

Hereafter, a coupling relationship of holder140and rack150will be described with reference toFIGS.7and8.FIG.7shows the kit100cut along line VII-VII′ shown inFIG.6, andFIG.8shows the shape obliquely seen from above.

The holder140may include a supporting portion141fixed to the main board110, a grip142that extends in the upward-downward direction from the supporting portion141, and a protrusion143that protrudes rearward from the grip142and spaced apart from the supporting portion141in the upward-downward direction. When the holder140is fixed to the sub-board120, the supporting portion141may be fixed to the sub-board120.

In the first holder140, the grip142may extend upward from the supporting portion141and the protrusion143may be positioned over the supporting portion141. In the second holder160, the grip142may extend downward from the supporting portion141and the protrusion143may be positioned under the supporting portion141. The supporting portion141, the grip142, and the protrusion143may be integrally formed and may be made of a material that is elastically deformed.

The supporting portion141may be fixed to the main board110without moving. The grip142may be moved forward and rearward with respect to the supporting portion141by elastically deforming. The protrusion143that protrudes rearward from the grip142may be moved forward and rearward with the grip142when the grip142is moved forward and rearward. Left-right movement and rearward movement of the supporting portion141may be restricted by the recess129.

The rack150may include rack frame151that extends in the upward-downward direction, a plurality of partition protrusions152that protrudes forward from the rack frame151, and a plurality of grooves153formed between the plurality of partition protrusions152. The plurality of partition protrusions152may be spaced apart from each other in the upward-downward direction and may be disposed in parallel with each other. The plurality of grooves153may be formed between the plurality of partition protrusions152, respectively, and may be spaced apart from each other in the upward-downward direction. The protrusion143may be moved rearward and inserted into one of the plurality of grooves153and may be moved forward and separated out of the one of the plurality of grooves153.

When the grip142is pulled in a first direction P, the protrusion143may be separated out of the groove153. When the protrusion143is separated out of the groove153, the sub-board120may be moved in the vertical direction without being restricted by the main board110.

When the grip142is pushed in a second direction Q, the protrusion143may be inserted into the groove153. When the protrusion143is inserted in the groove153, the sub-board120is restricted by the main board110and upward-downward movement thereof is restricted.

The protrusion143may be selectively inserted into the groove153corresponding to the protrusion143in a frontward-rearward direction of the plurality of grooves153. Accordingly, it is possible to adjust the height of the kit100by changing the groove153corresponding to the protrusion143by moving the sub-board120in the vertical direction with respect to the main board110.

The coupling structure of the first holder140and the first rack150described above may be applied in the same way to the coupling structure of the second holder160and the second rack170. However, the second holder160, unlike the first holder140, has the grip and the protrusion under the supporting portion, so there may be a slight difference in forward and rearward movement directions. As for the second holder160, it is possible to express that when the grip and the protrusion are moved forward with respect to the main board110, the protrusion is separated out of the groove of the rack, and when the grip and the protrusion are moved rearward with respect to the main board110, the protrusion is inserted into the groove of the rack.

The rack150may be spaced apart from an end120cof the sub-board120. An uppermost end150aof the rack frame151may be positioned lower than the upper end portion120cof the sub-board120. The uppermost end150aof the rack frame151may be spaced a predetermined distance D downward apart from the upper end portion120cof the sub-board120.

Hereafter, a disposition structure of supporter180will be described with reference toFIGS.9and10.FIG.9is an enlarged view showing a portion of the kit100at which the supporter180is disposed, andFIG.10is a view of the kit100at which the supporter180is disposed, taken along line X-X′ shown inFIG.9.

The supporter180may include a supporting plate181seated on the sub-board120, a first supporting body182that protrudes upward from the supporting plate181and having a window frame groove182cin which the window frame140is inserted, and a second supporting body183that protrudes downward from the supporting plate181and having a board groove183cin which a portion of the sub-board120is inserted. The supporting plate181, the first supporting body182, and the second supporting body183may be integrally formed.

The supporter180may be attached/detached to/from an upper side of the first sub-board120and may be attached/detached to/from a lower side of the second sub-board130. The rear plate124of the first sub-board120may be inserted into the board groove183eand the supporter180may be connected to the first sub-board120by fitting the second supporting body183to the rear plate124. The supporting plate181may be seated on the upper side of the first sub-board120with the supporter180connected to the first sub-board120. A weight of the supporter180may be supported by the first sub-side plate122, the second sub-side plate123, the rear plate124, and the recess129.

The supporting plate181may be positioned rearward further than the sub-plate121. A gap G may be formed between the supporting plate181and the sub-plate121.

The weight of the supporting plate181may be supported by the third remainder124aand the fourth remainder124band the supporting plate181may be disposed closer to the center portion of the sub-board120than the first mounting protrusion124cand the second mounting protrusion124d. The supporting plate181may be disposed inside of the first mounting protrusion124cand the second mounting protrusion124dand may be disposed between the first mounting protrusion124cand the second mounting protrusion124d.

The supporting plate181may include a first base plate181awhich is a portion at which the first supporting body182protrudes, and a second base plate181bwhich is a portion at which the second supporting body183protrudes. The first base plate181aand the second base plate181bmay be integrally formed.

The first supporting body182may protrude upward from the first base plate181a, and the second supporting body183may protrude upward from the second base plate181b. The first supporting body182and the second supporting body183may not overlap in the vertical direction.

The first supporting body182may include a first window frame holder182athat protrudes upward from the supporting plate181, a second window frame holder182bthat protrudes upward from the supporting plate181and spaced rearward apart from the first window frame holder182a, and a window frame groove182cformed between the first window frame holder182aand the second window frame holder182b. The first window frame holder182amay include a first holding plate182a1that extends upward from the supporting plate181, and a first holding protrusion182a2that protrudes rearward from the first holding plate182a1. The second window frame holder182amay include a second holding plate182b1that extends upward from the supporting plate181, and a second holding protrusion182b2that protrudes forward from the second holding plate182b1. A width of the window frame groove182cmay decrease upward.

The upper frame41may include a base frame41athat transversely extends, and a fixing frame41bthat protrudes downward from the base frame41a. The fixing frame41bmay fix the kit100to the window frame40by being inserted in the window frame groove182c. The fixing frame41bmay be disposed between the first holding plate182a1and the second holding plate182b1and may be pressed by the first holding protrusion182a2and the second holding protrusion182b2.

The second supporting body183may include a first board holder183athat protrudes downward from the supporting plate181, a second board holder183bthat protrudes downward from the supporting plate181and spaced rearward apart from the first board holder183a, and a board groove183cformed between the first board holder183aand the second board holder183b. The first board holder183amay include a third holding plate183a1that extends downward from the supporting plate181, and a first reinforcing protrusion183a2that protrudes forward from the third holding plate183a1. The third holding plate183a1may have a shape that protrudes rearward downward. The second board holder183bmay include a fourth holding plate183b1that extends downward from the supporting plate181, and a second reinforcing protrusion183b2that protrudes rearward from the fourth holding plate182b1. The fourth holding plate183b1may have a shape that protrudes forward downward. A width of the board groove183cmay decrease downward.

The rear plate124may fix the sub-board120to the supporter180by being inserted in the board groove183c. The rear plate124may be disposed between the third holding plate183a1and the fourth holding plate183b1and may be pressed by the third holding protrusion183a1and the fourth holding plate183b1.

Hereafter, gaskets191and192will be described with reference toFIGS.11A and11B.FIG.11Ais a perspective view of the first gasket191which is inserted in the window30andFIG.11Bis a perspective view of the second gasket192which is inserted in the window frame40.

The kit100may include gasket190disposed between a side of each of the main board110and the sub-boards120and130and the window frame40. The gasket190may be disposed between the side of each of the main board110and the sub-boards120and130and the window30.

The gasket190may include a first gasket191disposed between the side of each of the main board110and the sub-boards120and130and the window30, and a second gasket192disposed between the side of each of the main board110and the sub-boards120and130and the window frame40. The first gasket191may be inserted in the third window frame33and the second gasket192may be inserted in the side frame43.

Referring toFIG.11A, the first gasket191may include a first kit sealer191ainserted in the main board110and the sub-boards120and130, a first sealer hole191bopen in the vertical direction at the first kit sealer191a, a first window sealer191cthat protrudes to a side from the first kit sealer191a, a second window sealer191dthat protrudes to a side from the first kit sealer191aand spaced apart from the first window sealer191c, a first sealer protrusion191ethat protrudes toward the second window sealer191dfrom the first window sealer191c, a second sealer protrusion191fthat protrudes toward the first window sealer191cfrom the second window sealer191d, and a window insertion groove191gformed between the first window sealer191cand the second window sealer191d.

Referring toFIG.11B, the second gasket192may include a second kit sealer192ainserted in the main board110and the sub-boards120and130, a first sealer hole192bopen in the vertical direction at the second kit sealer192a, a first rib192cthat protrudes outward from the second kit sealer192a, a second rib192dthat protrudes outward from the second kit sealer192aand that faces the first rib192c, a window frame sealer192efacing the second kit sealer192awith the first rib192cand the second rib192dtherebetween, a window frame sealer hole192fopen in the vertical direction at the window frame sealer192e, a third rib192gthat protrudes outward from the window frame sealer192e, and a fourth rib192hthat protrudes outward from the window frame sealer192eand facing the third rib192g.

Hereafter, a sealing structure by the gasket190will be described with reference toFIGS.12A and12B.FIG.12Ashows the kit100before it is sealed by the gasket190andFIG.11Bshows an installation structure of the kit100after it is sealed by the gasket190.

A first gasket groove118sin which the second gasket192may be inserted may be formed at the first side plate118. A second gasket groove119sin which the first gasket191may be inserted may be formed at the second side plate119. The first gasket groove118sand the second gasket groove119smay be referred to as “gasket grooves”.

The third window frame33may be inserted in the window insertion groove191gand may be pressed by the first sealer protrusion191eand the second sealer protrusion191f. The first gasket191may be inserted in the second gasket groove119sand may be pressed by the first pressing protrusion114and the second pressing protrusion117. The first kit sealer191amay seal the portion between the main board110and the sub-boards120and130by being inserted in the second gasket groove119s.

The window frame sealer192emay be inserted in the side frame43, and the third rib192gand the fourth rib192hmay be pressed to the side frame43. The side frame43may be in close contact with the first rib192cand the second rib192d.

The second gasket192may be inserted in the first gasket groove118sand may be pressed by the first pressing protrusion114and the second pressing protrusion117. The second kit sealer192amay seal the portion between the main board110and sub-boards120and130and the side frame43by being inserted in the first gasket groove118s.

Hereafter, a close contact structure of the gasket190will be described with reference toFIGS.13A and13B.FIG.13Ais a view illustrating a close contact structure of the main board110and the gasket190, andFIG.13Bis a view illustrating a close contact structure of the sub-boards120and130and the gasket190.

Referring toFIG.13A, the first gasket191may be in closed contact with the second side plate119and the second gasket192may be in close contact with the first side plate118. The first kit sealer191amay be in close contact with the third wall115and may be disposed between the first pressing protrusion114and the second pressing protrusion117.

The first window sealer191cmay be in close contact with the second wall113and the second window sealer119dmay be in close contact with the fourth wall116. The first window sealer191cmay be positioned further outside than the first pressing protrusion114and the second window sealer191dmay be positioned further outside than the second pressing protrusion117.

The second kit sealer192amay be in close contact with the third wall115and may be disposed between the first pressing protrusion114and the second pressing protrusion117. The first rib192cmay be in close contact with the first wall112and the second rib192dmay be spaced outward apart from the fourth wall116.

Referring toFIG.13B, the first gasket191may be in closed contact with the second sub-side plate123and the second gasket192may be in close contact with the first sub-side plate122. The first gasket191may be in close contact with the second mounting protrusion124din a state in which the first gasket191is inserted in the second gasket groove119s. The second window sealer191dmay be supported in close contact with the second mounting protrusion124d.

The second gasket192may be in close contact with the first mounting protrusion124cin a state in which the second gasket192is inserted in the first gasket groove118s. The second rib192dmay be supported in close contact with the first mounting protrusion124c. The first mounting protrusion124cand the second mounting protrusion124dmay be referred to as “gasket holding portions” that protrude forward from the rear plate124.

Embodiments disclosed herein provide an air conditioner equipped with a kit a height of which is easily adjusted. Embodiments disclosed herein further provide an air conditioner equipped with a kit having increased durability against external forces. Embodiments disclosed herein furthermore provide an air conditioner equipped with a kit having an increased lifespan.

Embodiments disclosed herein provide an air conditioner equipped with a kit preventing inflow of external forces. Embodiments disclosed herein also provide an air conditioner in which the fitting compatibility of a kit is improved.

Advantages are not limited to the advantages described above and other advantages will be clearly understood by those skilled in the art from the description.

Embodiments disclosed herein provide an air conditioner that may include a case in which a heat exchanger is disposed and that has an air inlet and an air outlet; a discharge pipe that communicates with the air outlet and extends out of the case; and a kit that has a discharge port in which the discharge pipe is fixed, and disposed to be fixed to a window frame. The kit may include a main board at which the discharge port is formed; a sub-board that is disposed to be movable in the vertical direction with respect to the main board; a rack that is connected with any one of the main board and the sub-board and forms a plurality of grooves spaced apart from each other in an upward-downward direction; and a holder that is connected with the other one of the main board and the sub-board and has a protrusion inserted in the groove and moving forward and rearward to restrict upward-downward movement of the sub-board. It is possible to adjust a height of the kit by restricting upward-downward movement of the sub-board by inserting the protrusion in the groove.

The rack may be connected with the sub-board and the holder may be connected with the main board. The holder may include a supporting portion or support fixed to any one of the main board and the sub-board and spaced apart from the protrusion, and a grip that connects the supporting portion and the protrusion. The holder may be disposed at an end of any one of the main board and the sub-board.

The rack may include a plurality of partition protrusions forming the groove therebetween by being spaced apart from each other in the upward-downward direction. The rack may be disposed to be spaced apart from an end of any one of the main board and the sub-board.

The sub-board may include a first sub-board at least a portion of which is disposed at an upper side of the main board, and a second sub-board at least a portion of which is disposed at a lower side of the main board. The first sub-board and the second sub-board may extend in the upward-downward direction.

A length of the first sub-board may be smaller than a length of the second sub-board. The discharge port may be formed at a position closer to the second sub-board than the first sub-board.

The holder may include a first holder that corresponds to the first sub-board, and a second holder that corresponds to the second sub-board. A grip of the first holder may be disposed higher than the supporting portion, and a grip of the second holder may be positioned lower than the supporting portion. An overlap space in which the sub-board is moved in the vertical direction may be formed behind the main board.

The main board may include a main plate at which the discharge port is formed; a first side plate that protrudes rearward from the main plate; and a second side plate that protrudes rearward from the main plate and spaced apart from the first side plate. The sub-board may be moved in the vertical direction between the first side plate and the second side plate.

The kit may further include a supporter that is attached/detached to/from at least any one of the main board and the sub-board. The supporter may include a supporting plate that is seated on any one of the main board and the sub-board; a first supporting body that protrudes to a side from the supporting plate and at which a window frame groove in which the window frame is inserted is formed; and a second supporting body that protrudes to another side from the supporting plate and at which a board groove, in which at least any one of the main board and the sub-board is inserted, is formed. The first supporting body and the second supporting body may not overlap in the upward-downward direction.

The kit may further include a gasket disposed between a side of each of the main board and the sub-board and the window frame. The gasket may include a first gasket inserted in a window, and a second gasket inserted in the window frame.

The main board may include a main plate at which the discharge port is formed, and a side plate that protrudes rearward from the main plate and at which a gasket groove in which the gasket is inserted is formed. The sub-board may include a rear plate spaced rearward apart from the main board, and a gasket holding portion that protrudes forward from the rear plate.

According to an air conditioner according to embodiments disclosed herein, advantages may be achieved as follows.

First, there is an advantage in that a height of the kit may be easily adjusted by adjusting an overlap height of the main board and the sub-board by inserting the protrusion of the holder in any one of the plurality of grooves formed at the rack.

Second, there is another advantage in that a fastening force between the main board and the sub-board is increased through coupling of the holder and the rack, so durability of the kit against external force is increased.

Third, there is another advantage in that a lifespan of the kit is improved by the structure of the holder including the supporting portion, the grip, and the protrusion, and a restriction method of insertion in any one of the plurality of grooves.

Fourth, there is another advantage in that a shape compatibility with a window frame is increased by the supporter and the gasket, so that the kit completely prevents inflow of external air.

Fifth, there is another advantage in that as the sub-board is moved up and down in the overlap space formed inside of the main board, the shape compatibility of the kit is increased.

Advantages are not limited to those described above and other advantages not stated herein may be made apparent to those skilled in the art from claims.

Although embodiments were illustrated and described above, the embodiments are not limited to the disclosed embodiments and may be modified in various ways by those skilled in the art without departing from the scope described in claims, and the modified examples should not be construed independently from the spirit of the scope.