Window and window module with improved airtightness

Abstract

The present invention provides a window frame having one or more first protruding mounting portions; a cover plate mounted to surround at least a portion of the window frame and having a first insertion mounting portion recessed inwardly to allow the first protruding mounting portion to be inserted; and a sealing member provided on the first protruding mounting portion, which contacts at least a portion of the inner surface of the first insertion mounting portion and undergoes elastic deformation when the first protruding mounting portion is mounted on the first insertion mounting portion.

Description

Technology Field

[0001] The present invention relates to a window and a window module with improved airtightness, and more specifically, to a window module in which a cover plate for improving the aesthetics of the window is modularized (standardized) so that it can be freely assembled to the window frame of a general window or a system window. Background Technology

[0002] In the conventional method of assembling the window frame and the cover frame for finishing the exterior of the window frame, general windows have a problem in that it is difficult to freely implement the shape of the cover frame.

[0003] In particular, when a cover frame is assembled to a standard or system window, gaps occur due to tolerances in the assembled parts, which leads to a decrease in the airtightness of the window due to wind pressure, resulting in the generation of cold air and a reduction in thermal insulation performance. Prior art literature

[0004] Korean Utility Model Publication 20-0263773 (2002.02.09) The problem to be solved

[0005] The present invention is devised to solve the aforementioned problems and aims to provide a window module in which the window frame mounting part (assembly part) and the cover plate mounting part (assembly part) are modularized by providing a mounting part (assembly part) of a predetermined shape on the window frame and a mounting part (assembly part) of a corresponding shape on the cover plate.

[0006] In addition, by providing a sealing member in the window frame to improve the airtightness performance of the window, the sealing member is compressed when the cover plate is mounted (assembled) to the window frame, thereby providing a window and a window module with improved airtightness performance. means of solving the problem

[0007] To achieve the above objective, according to one aspect of the present invention, a window frame is provided having one or more first protruding mounting portions; a cover plate mounted to surround at least a portion of the window frame and having a first insertion mounting portion recessed inwardly to allow the first protruding mounting portion to be inserted; and a sealing member provided on the first protruding mounting portion, which contacts at least a portion of the inner surface of the first insertion mounting portion and elastically deforms when the first protruding mounting portion is mounted on the first insertion mounting portion.

[0008] In addition, the sealing member and the first protruding mounting part are formed of the same resin material, and the sealing member is provided to have a lower hardness than the first protruding mounting part.

[0009] Additionally, the first protruding mounting portion has a mounting groove in which a portion of the sealing member is fixed, and another portion of the sealing member protrudes outside the first protruding mounting portion.

[0010] In addition, the mounting groove is formed so that its width widens in at least a portion as it extends toward the bottom surface.

[0011] In addition, the sealing member is coated with resin within the mounting groove and co-extruded with the first protruding mounting part.

[0012] Additionally, the first insertion mounting portion has an insertion groove that is recessed inwardly from the inner surface of the first insertion mounting portion so that a portion of the sealing member protruding outside the first protruding mounting portion is inserted and contacted.

[0013] Additionally, the first protruding mounting portion has a first locking projection, and the first insertion mounting portion has a second locking projection arranged to engage with the first locking projection when the first protruding mounting portion is inserted into the first insertion mounting portion.

[0014] Additionally, the first protruding mounting portion has a tolerance absorption portion that is recessed inward from the outer surface of the first protruding mounting portion to absorb assembly tolerance when the first locking projection and the second locking projection engage.

[0015] In addition, when the first protruding mounting part is inserted into and mounted in the first insertion mounting part, the second locking projection is arranged to be positioned at a predetermined distance from the tolerance absorption part.

[0016] Additionally, the first locking projection has an inclined surface of a predetermined first angle formed extending from the outer circumference of the first protruding mounting portion, and the second locking projection has an inclined surface of a predetermined second angle formed extending from the inner circumference of the first insertion mounting portion, and the first angle and the second angle are provided to have the same angle.

[0017] Additionally, the first protruding mounting portion has a predetermined first width, the mounting groove portion of the first protruding mounting portion has a second width smaller than the first width, the sealing member protruding outside the first protruding mounting portion has a third width larger than the second width, and the insertion groove portion of the first insertion mounting portion is provided to have a fourth width larger than the third width and smaller than the first width.

[0018] In addition, according to another aspect of the present invention, a window frame is provided having a plurality of first protruding mounting portions; a first cover plate is mounted to surround at least a portion of the window frame and has a first insertion mounting portion that is recessed inwardly so that the first protruding mounting portions are inserted therein; a second cover plate is mounted to surround another portion of the window frame and has a first insertion mounting portion that is recessed inwardly so that the first protruding mounting portions are inserted therein, and differs from the first cover plate in at least one of size and shape; and a sealing member is provided in the first protruding mounting portion and, when the first protruding mounting portions are mounted in the first insertion mounting portions, contacts at least a portion of the inner surface of the first insertion mounting portions and undergoes elastic deformation. Effects of the invention

[0019] According to the present invention, by modularizing the assembly part of the window frame and the cover plate mounted on the window frame, the shape of the cover plate can be freely implemented in the case of a general window, and in the case of a system window, a lift sliding system can be implemented for both the inner and outer windows, thereby providing the advantage of enabling product differentiation and premiumization.

[0020] In addition, by modularizing the assembly part (mounting part) into a predetermined shape, it can be applied to other products, thereby improving productivity.

[0021] In addition, by co-extruding a sealing member (soft part) into the window frame, the sealing performance can be improved when the cover plate is mounted on the window frame. Brief explanation of the drawing

[0022] FIGS. 1 to 4 are drawings showing various embodiments of a window module according to one embodiment of the present invention. FIGS. 5 and 6 are drawings showing a window frame of a window module according to one embodiment of the present invention. FIGS. 7 to 12 are drawings showing a first protruding mounting part and a first insertion mounting part according to an embodiment of the present invention. Specific details for implementing the invention

[0023] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, and should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0024] Additionally, identical or corresponding components are assigned the same or similar reference numbers regardless of drawing symbols, and redundant descriptions thereof are omitted; furthermore, for the convenience of explanation, the size and shape of each illustrated component may be exaggerated or reduced.

[0025] Therefore, it should be understood that the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, and that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0026] The present invention relates to a window module (10) in which a window frame (100; 101, 102) and various types of cover plates (200; 201~208) mounted on the window frame are modularized. Hereinafter, a window module (10) according to one embodiment of the present invention will be described in detail with reference to the attached drawings.

[0027] FIGS. 1 to 4 are drawings showing various embodiments of a window module according to one embodiment of the present invention.

[0028] Referring to FIGS. 1 to 4, a window module (10) according to one embodiment of the present invention includes a window frame (100) and a cover plate (200) mounted on the window frame to finish the exterior of the window frame.

[0029] With the window sash frame mounted on the above window frame (100), the rolling performance of the lower roller of the window sash is improved by the cover plate, and the airtightness of the upper and side parts is strengthened and the aesthetics are improved, thereby realizing the function and image of a high-end window.

[0030] First, a window module (10) according to one embodiment of the present invention can be divided into a system window (see FIG. 1 and FIG. 2) and a general window (see FIG. 3 and FIG. 4).

[0031] Accordingly, the following description of the system window is described in the first embodiment, the description of the general window is described in the second embodiment, and the window module of the present invention is described using the same reference numerals for the same descriptions.

[0032] In the case of a system window, the height of the first protruding mounting part may be lower than the height of the first protruding mounting part provided in the window frame of a general window in order to lower the height of the window frame, and the locking projection of the first protruding mounting part provided in the window frame (101) of the system window may be provided on the upper side.

[0033] In the case of a standard window, the height of the first protruding mounting part may be increased to secure a drainage structure, and accordingly, a locking projection may be provided in the center of the height direction.

[0034] FIGS. 5 and FIGS. 6 are drawings showing a window frame (100) according to one embodiment of the present invention.

[0035] Specifically, FIG. 5 is a drawing showing a window frame (101) of a system window according to a first embodiment of the present invention, and FIG. 6 is a drawing showing a window frame (102) of a general window according to a second embodiment of the present invention.

[0036] Referring to FIGS. 5 and 6, the window frame (100) of the present invention has one or more first protruding mounting parts (300).

[0037] Additionally, the window frame (100) may have one or more rail sections (150) for mounting a window sash frame (not shown).

[0038] The above window frame (100) and the first protruding mounting part (300) can each be formed to extend along the longitudinal direction. Accordingly, the first insert mounting part (400) can be formed to extend along the longitudinal direction.

[0039] The above window frame (100) has a first surface (101) for being fixed to a wall and a second surface (102) opposite to the first surface (101).

[0040] Referring to FIGS. 1 to 6, the cover plate (200) of the present invention is mounted to surround at least a portion of the window frame (100) and has a first insertion mounting portion (400) that is recessed inward so that a first protruding mounting portion (300) is inserted therein.

[0041] The above cover plate (200) has a first surface (2001) facing the window frame (100) and a second surface (1002) opposite to the first surface.

[0042] The first insert mounting portion (400) above may be formed to have a predetermined hollow portion (S1) that is recessed inwardly to a predetermined depth from the first surface (2001) of the cover plate (200).

[0043] In addition, it includes a sealing member (330) provided on the first protruding mounting part (300), which contacts at least a portion of the inner surface of the first insertion mounting part (400) and elastically deforms when the first protruding mounting part (300) is mounted on the first insertion mounting part (400).

[0044] Additionally, the sealing member (330) and the first protruding mounting part are formed of the same resin material, and the sealing member (330) may be provided to have a lower hardness than the first protruding mounting part.

[0045] Specifically, the window frame (100) and the first protruding mounting part (300) formed protruding therefrom may be formed of PVC, and the sealing member (330) may be provided to have a lower hardness than the first protruding mounting part (300) by adding a plasticizer to the PVC.

[0046] Meanwhile, the sealing member (330) and the first protruding mounting part (300) are formed of different resin materials, and the sealing member (330) may be provided to have a lower hardness than the first protruding mounting part (300).

[0047] For example, the first protruding mounting part (300) may be formed of PVC material and the sealing member (330) may be formed of TPE (Thermo Plastic Elastomer) material, but is not limited thereto.

[0048] The hardness of the above-mentioned sealing member (330) may be 55 to 65, 58 to 63, 59 to 61, or 60, but is not limited thereto.

[0049] Accordingly, the sealing member (330) is formed of a soft material, and when the first insert mounting part (400) is mounted on the first protruding mounting part (300), the sealing member (330) is pressed and elastically deformed so as to make close contact between the first protruding mounting part (300) and the first insert mounting part (400) and seal the space between at least a portion of the area.

[0050] The first protruding mounting part (300) is formed to protrude from the second surface (102) of the window frame with a predetermined width (w) and height (h).

[0051] In addition, the first protruding mounting portion (300) has a mounting groove (332) in which a portion of the sealing member (330) is fixed, and another portion of the sealing member (330) may protrude outside the first protruding mounting portion (300).

[0052] The above mounting groove (332) may be formed so that its width increases in at least part toward the bottom surface.

[0053] Specifically, the mounting groove (332) may be provided to be recessed inward from the end surface (3011) of the first protruding mounting portion (300).

[0054] The above sealing member (330) can be co-extruded with the first protruding mounting part (301) by applying resin within the mounting groove (332).

[0055] The first protruding mounting portion (300) has a pair of first locking protrusions (3012) provided on each side in the width direction.

[0056] The first insertion mounting portion (400) has a pair of second locking projections (4012) arranged to engage with the first locking projection (3012) when the first protruding mounting portion (300) is inserted into the first insertion mounting portion (400).

[0057] The second locking projection (4012) can be provided on each side in the width direction of the first insertion mounting part (400).

[0058] The first protruding mounting portion (300) has a pair of tolerance absorption portions (3013) that are recessed inward from the outer surface of the first protruding mounting portion (300) to absorb assembly tolerance when the first locking projection (3012) and the second locking projection (4012) engage.

[0059] The above tolerance absorption portion (3013) can be provided on each side in the width direction.

[0060] When the first protruding mounting part (300) is inserted and mounted into the first insertion mounting part (400), the second locking projection (4012) may be positioned at a predetermined distance from the tolerance absorption part (3013).

[0061] The first locking projection (3012) has an inclined surface (3014) of a predetermined first angle (θ1) formed extending from the outer surface of the first protruding mounting part (300).

[0062] At this time, the second locking projection (4012) has an inclined surface (4014) of a predetermined second angle (θ2) formed extending from the inner circumference of the first insertion mounting part (400).

[0063] Here, the first angle (θ1) and the second angle (θ2) are arranged to have the same angle.

[0064] That is, the first locking projection (3012) and the second locking projection (4012) can be formed symmetrically with respect to each other and arranged to have the same angle.

[0065] In addition, the first protruding mounting portion (300) has a predetermined first width (W1), the mounting groove portion (332) of the first protruding mounting portion (300) has a second width (W2) smaller than the first width (W1), the sealing member (330) protruding outside the first protruding mounting portion (300) has a third width (W3) larger than the second width (W2), and the insertion groove portion (430) of the first insertion mounting portion (400) is provided to have a fourth width (W4) larger than the third width (W3) and smaller than the first width (W1).

[0066] FIGS. 7 to 9 are drawings showing a first protruding mounting part (301) and a first insertion mounting part (401) according to a first embodiment of the present invention.

[0067] Referring to FIGS. 7 to 9, one or more first protruding mounting portions (301) of a window frame (101) (also referred to as the 'first window frame') according to the first embodiment of the present invention may have a predetermined hollow portion (3010) on the inside.

[0068] The first locking projection (3012) of the first protruding mounting part (301) according to the first embodiment of the present invention may be extended and protruded from the longitudinal section (3011) to have a predetermined angle of inclination (first angle).

[0069] Additionally, the tolerance absorption portion (3013) may be provided adjacent to the lower part of the first locking projection (3012).

[0070] Here, the first angle (θ1) can be defined as the angle between a virtual extension line (L1) following the inner circumference of the tolerance absorption portion (3013) and a virtual extension line (L2) following the inclined surface of the first locking projection (3012), and the first angle has 20 degrees (°) to 30 degrees (°).

[0071] In addition, the second angle (θ2) can be defined as the angle between a virtual extension line (L3) following the inner surface of the side of the first insertion mounting part (401) (inner surface in a direction perpendicular to the ground) and a virtual extension line (L4) following the inclined surface (4014) of the second locking projection, and the second angle has 20 degrees (°) to 30 degrees (°).

[0072] Here, the inclined surface of the first locking projection (3012) may be provided so that the cross-sectional area widens toward the bottom, and the inclined surface of the second locking projection (4012) may be provided so that the cross-sectional area widens toward the top.

[0073] Referring to FIG. 8, when the first protruding mounting part (301) is inserted and mounted into the first insertion mounting part (401), the second locking projection (4012) is positioned adjacent to the tolerance absorption part (3013).

[0074] At this time, the sealing member (330) is inserted into the insertion groove (430) and seals a portion of the area between the first protruding mounting part and the first insertion mounting part.

[0075] In particular, the upper surface (upper side inner surface) (4011) of the first insertion mounting part (401) is mounted in contact with at least a portion of the end surface (3011) of the first protruding mounting part, so that the sealing member (330) can be more tightly sealed within the insertion groove (430) by elastic deformation.

[0076] In this state, a predetermined first and second gap (g1, g2) may be formed between the tolerance absorption portion (3013) and the second locking projection (4012).

[0077] The thermal insulation of the window module can be improved by the sealing member (330) blocking the movement of airflow caused by wind pressure from the first gap (g1) side to the second gap (g2) side or from the second gap (g2) side to the first gap (g1) side through these first and second gaps (g1, g2).

[0078] Referring to FIG. 9, the height (t1) of the first locking projection (3012) according to the first embodiment of the present invention may be provided to be 0.4 to 0.6 mm, and the height (t2) of the second locking projection (4012) may be provided to be 0.4 to 0.6 mm.

[0079] In addition, a predetermined first tolerance gap (t3), defined as the distance between the height-direction end of the second stopper projection (4012) and the bottom surface of the tolerance absorption portion (3013), may be provided to have a value of 0.2 to 0.3 mm.

[0080] In addition, a predetermined second tolerance gap (t3') may be formed in the width direction of the interlocking area of ​​the first and second locking protrusions (3012, 4012) formed as above to absorb the tolerance of the locking protrusions, and the predetermined second tolerance gap (t3') may be provided to have a width of 0.1 to 0.3 mm.

[0081] Additionally, a predetermined third tolerance gap (t4) may be formed in the height direction of the interlocking area of ​​the first and second locking protrusions (3012, 4012) to absorb the tolerance of the locking protrusions, and the predetermined third tolerance gap (t4) may be provided to have a size of 0.2 to 0.3 mm.

[0082] FIGS. 10 to 12 are drawings showing a first protruding mounting part (302) and a first insertion mounting part (402) according to a second embodiment of the present invention.

[0083] Referring to FIGS. 10 to 12, when the first protruding mounting part (301) according to the first embodiment of the present invention is provided to have a first height, the first protruding mounting part (302) according to the second embodiment (also referred to as the 'second protruding mounting part') may be provided to have a second height higher than the first height.

[0084] Accordingly, the height of the first insertion mounting part (401) according to the first embodiment may be provided to correspond to the first height, and the height of the first insertion mounting part (402) (also called the 'second insertion mounting part') according to the second embodiment may be provided to correspond to the second height.

[0085] One or more first protruding mounting portions (302) of a window frame (102) (also referred to as the 'second window frame') according to the second embodiment of the present invention may have one or more predetermined hollow portions (3010) on the inside.

[0086] The first locking projection (3012) of the first protruding mounting part (302) according to the second embodiment of the present invention may be extended and protruded from the side (3011a) of the first protruding mounting part (302) to have a predetermined angle of inclination (first angle).

[0087] Additionally, the tolerance absorption portion (3013) may be provided adjacent to the lower part of the first locking projection (3012).

[0088] Here, the first angle (θ1) can be defined as the angle between a virtual extension line (L1') following the side (3011a) of the first protruding mounting part (302) and a virtual extension line (L2) following the inclined surface of the first locking projection (3012), and the first angle has 20 degrees (°) to 30 degrees (°).

[0089] In addition, the second angle (θ2) can be defined as the angle between a virtual extension line (L3) following the inner surface of the side of the first insertion mounting part (402) (inner surface in a direction perpendicular to the ground) and a virtual extension line (L4) following the inclined surface (4014) of the second locking projection, and the second angle has 20 degrees (°) to 30 degrees (°).

[0090] In this document, the inclined surface of the first locking projection (3012) may be provided so that the cross-sectional area widens toward the bottom, and the inclined surface of the second locking projection (4012) may be provided so that the cross-sectional area widens toward the top.

[0091] Referring to FIG. 11, when the first protruding mounting part (302) is inserted and mounted into the first insertion mounting part (402), the second locking projection (4012) is positioned adjacent to the tolerance absorption part (3013).

[0092] At this time, the sealing member (330) is inserted into the insertion groove (430) and seals a portion of the area between the first protruding mounting part and the first insertion mounting part.

[0093] In particular, the upper surface (upper side inner surface) (4011) of the first insertion mounting part (402) is mounted in contact with at least a portion of the end surface (3011) of the first protruding mounting part, so that the sealing member (330) can be more tightly sealed within the insertion groove (430) by elastic deformation.

[0094] In this state, a predetermined first and second gap (g1', g2') (also referred to as the third and fourth gap) may be formed between the tolerance absorption portion (3013) and the second locking projection (4012).

[0095] The thermal insulation of the window module can be improved by the sealing member (330) blocking the movement of airflow caused by wind pressure from the first gap (g1') side to the second gap (g2') side or from the second gap (g2') side to the first gap (g1') side through these first and second gaps (g1', g2').

[0096] Referring to FIG. 12, the height (t11) of the first locking projection (3012) according to the second embodiment of the present invention may be provided to be 0.2 to 0.3 mm, and the height (t21) of the second locking projection (4012) may be provided to be 0.4 to 0.6 mm.

[0097] In addition, a predetermined fourth tolerance gap (t31), defined as the distance between the height-direction end of the second stopper projection (4012) and the bottom surface of the tolerance absorption portion (3013), may be provided to have a value of 0.2 to 0.3 mm (same as in the first embodiment).

[0098] Additionally, a predetermined fifth tolerance gap (t41) may be formed in the height direction of the interlocking area of ​​the first and second locking projections (3012, 4012) to absorb the tolerance of the locking projections, and the predetermined fifth tolerance gap (t41) may be provided to have a size of 0.2 to 0.3 mm.

[0099] In addition, referring to FIGS. 1 to 4, a window module according to another embodiment of the present invention comprises: a window frame having a plurality of first protruding mounting portions; a first cover plate mounted to surround at least a portion of the window frame and having a first insertion mounting portion recessed inwardly so that the first protruding mounting portions are inserted; a second cover plate that differs from the first cover plate in at least one of size and shape and is mounted to surround another portion of the window frame and has a first insertion mounting portion recessed inwardly so that the first protruding mounting portions are inserted; and a sealing member provided in the first protruding mounting portions and elastically deformed while contacting at least a portion of the inner surface of the first insertion mounting portions when the first protruding mounting portions are mounted in the first insertion mounting portions.

[0100] Specifically, referring to FIG. 2, the first cover plate (203) and the second cover plate (204) may be provided with at least one of their size and shape being different from each other.

[0101] As described above, one or more first insertion mounting portions are provided in a plurality of cover plates (200; 201~208) having different sizes and shapes, and one or more first protruding mounting portions are provided in a window frame, so that at least one or two or more cover plates (200) selected from the plurality of cover plates (200) can be selectively mounted on the window frame. Explanation of the symbols

[0102] 10: Window Module 100: Window frame 200: Cover plate 300: 1st protruding mounting part 400: First insertion mounting part

Claims

Claim 1 A window frame having one or more first protruding mounting portions; a cover plate mounted to surround at least a portion of the window frame and having a first insertion mounting portion recessed inwardly to allow the first protruding mounting portion to be inserted; and a sealing member provided on the first protruding mounting portion and elastically deformed while contacting at least a portion of the inner surface of the first insertion mounting portion when the first protruding mounting portion is mounted on the first insertion mounting portion, wherein the first protruding mounting portion has a first locking projection, and the first insertion mounting portion has a second locking projection provided to engage with the first locking projection when the first protruding mounting portion is inserted into the first insertion mounting portion, and the first protruding mounting portion has a tolerance absorption portion recessed inwardly from the outer surface of the first protruding mounting portion to absorb assembly tolerance when the first locking projection and the second locking projection engage. Claim 2 A window module according to claim 1, wherein the sealing member and the first protruding mounting part are formed of the same resin material, and the sealing member is provided to have a lower hardness than the first protruding mounting part. Claim 3 In claim 1, the first protruding mounting portion has a mounting groove in which a portion of the sealing member is fixed, and the sealing member is a window module in which another portion of the sealing member protrudes outside the first protruding mounting portion. Claim 4 In claim 3, the mounting groove is formed such that its width widens in at least a portion toward the bottom surface. Claim 5 In claim 4, the sealing member is a window module co-extruded with a first protruding mounting part, in which resin is applied within the mounting groove. Claim 6 In claim 3, the first insertion mounting portion has an insertion groove recessed inwardly from the inner circumference of the first insertion mounting portion so as to be inserted into and contacted by a portion of the sealing member protruding outside the first protruding mounting portion. Claim 7 A window module according to claim 1, wherein when the first protruding mounting part is inserted into and mounted in the first insertion mounting part, the second locking projection is arranged to be positioned at a predetermined distance from the tolerance absorption part. Claim 8 A window module according to claim 1, wherein the first locking projection has an inclined surface of a predetermined first angle formed extending from the outer circumference of the first protruding mounting portion, and the second locking projection has an inclined surface of a predetermined second angle formed extending from the inner circumference of the first insertion mounting portion, and the first angle and the second angle are provided to have the same angle. Claim 9 A window module according to claim 6, wherein the first protruding mounting portion has a predetermined first width, the mounting groove portion of the first protruding mounting portion has a second width smaller than the first width, the sealing member protruding outside the first protruding mounting portion has a third width larger than the second width, and the insertion groove portion of the first insertion mounting portion has a fourth width larger than the third width and smaller than the first width. Claim 10 A window frame having a plurality of first protruding mounting portions; a first cover plate mounted to surround at least a portion of the window frame and having a first insertion mounting portion recessed inwardly to allow the first protruding mounting portion to be inserted; a second cover plate that differs from the first cover plate in at least one of size and shape, is mounted to surround another portion of the window frame, and has a first insertion mounting portion recessed inwardly to allow the first protruding mounting portion to be inserted; A window module comprising a sealing member provided in a first protruding mounting portion, which contacts at least a portion of the inner surface of the first insertion mounting portion and elastically deforms when the first protruding mounting portion is mounted in the first insertion mounting portion, wherein the first protruding mounting portion has a first locking projection, and the first insertion mounting portion has a second locking projection provided to engage with the first locking projection when the first protruding mounting portion is inserted in the first insertion mounting portion, and the first protruding mounting portion has a tolerance absorption portion recessed inward from the outer surface of the first protruding mounting portion to absorb assembly tolerance when the first locking projection and the second locking projection engage.

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