Smart windows with variable transmittance glazing

Abstract

A window includes a window frame having an opening defined therein through which an outdoor space and an indoor space communicate with each other, a pair of sashes slidably disposed in the window frame and sliding in an opening direction and a closing direction opposite to the opening direction, a variable transmittance window glass configured to fit in the sash to open and close the opening together with the sash according to the sliding of the sash, the variable transmittance window glass having a transmittance variable by electrical connection, a first conductive member disposed on the sash and electrically connected with the variable transmittance window glass to supply power to the variable transmittance window glass, and a second conductive member electrically connected with the first conductive member to supply power to the first conductive member from outside of the window frame.

Description

[0001] Cross-citation of related applications

[0002] This application claims priority to Korean Patent Application No. 10-2020-0107229, filed on August 25, 2020, with the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to a window, and more specifically, to a smart window with variable transmittance window glass. Background Technology

[0004] Generally, the window frame in a building's wall and the window sash installed within that frame are collectively referred to as a window. In recent years, smart windows have been developed, consisting of window glass with a variable transmittance film inserted between them.

[0005] The transmittance of the window glass in a smart window is altered via an electrical connection. Therefore, an electrical connection is required to control the transmittance. However, using a separate fastening connector for the electrical connection poses a risk of damage to the connector during window opening and closing, and also leads to performance degradation due to the separate design for overcoming steps.

[0006] Furthermore, since this window requires additional components for electrical connections compared to existing windows, it may cause inconvenience during window assembly processes such as applying sealant, and the airtightness of the window may not be maintained due to steps, leaks, etc.

[0007] Additionally, windows may not be aesthetically appealing when components used for electrical connections are exposed to the outside.

[0008] The information included in this Background section is intended only to enhance the understanding of the general background of this disclosure and should not be construed as an admission of prior art known to those skilled in the art or as any form of advice. Summary of the Invention

[0009] This disclosure is made to solve the aforementioned problems in the prior art while fully retaining the advantages achieved by the prior art.

[0010] One aspect of this disclosure provides a window that has a lower risk of damage to components used for electrical connections, maintains airtightness, and has aesthetic improvements.

[0011] The technical problems to be solved by this disclosure are not limited to those described above, and any other technical problems not mentioned herein will be clearly understood by those skilled in the art from the following description.

[0012] According to an aspect of the disclosure, a window includes a window frame having an opening defined therein through which an outdoor space and an indoor space communicate with each other; a pair of sashes installed in the window frame and sliding in an opening direction and a closing direction opposite to the opening direction; a variable transmittance window glass configured to fit in the sashes to open and close the opening together with the sashes according to sliding of the sashes, the variable transmittance window glass having a transmittance variable by electrical connection; a first conductive member provided on the sashes and electrically connected with the variable transmittance window glass to supply power to the variable transmittance window glass; and a second conductive member electrically connected with the first conductive member to supply power to the first conductive member from an outside of the window frame.

[0013] According to an embodiment, each of the first conductive members can be connected to at least a portion of a first surface, which is a surface of the corresponding sash facing the window frame among surfaces of the corresponding sash, and the second conductive member can be connected to at least a portion of a second surface, which is a surface of the window frame facing the first surface among surfaces of the window frame.

[0014] According to an embodiment, the first conductive member and the second conductive member can remain electrically connected with each other even if the sashes slide in the opening direction and the closing direction.

[0015] According to an embodiment, a position at which the sashes close the opening together with the corresponding variable transmittance window glass can be referred to as a closing position, and the second conductive member can be continuously provided between a first position on the second surface corresponding to an area in which the first conductive member is provided when the sashes are located at the closing position and a second position on the second surface corresponding to an area in which the first conductive member is provided when the sashes move from the closing position to a maximum in the opening direction.

[0016] According to an embodiment, the first conductive member and the second conductive member can be electrically connected with each other when the sashes are located at a predetermined reference position.

[0017] According to an embodiment, a position at which the sashes close the opening together with the corresponding variable transmittance window glass can be referred to as a closing position, and the second conductive member can be connected to a position on the window frame corresponding to a position of the first conductive member when the sashes are located at the closing position, the second conductive member is electrically connected with the first conductive member when the sashes are located at the closing position, and the second conductive member is electrically disconnected from the first conductive member when the window frame deviates from the closing position.

[0018] According to an embodiment, a position in which the sash closes the opening together with the corresponding variable transmittance window glass can be referred to as a closed position. The first surface and the second surface can be spaced apart from each other by a predetermined distance. The first conductive member can include a first protruding member that is obliquely protruded from the first surface toward the second surface. The second conductive member can include a second protruding member that is obliquely protruded from the second surface toward the first surface, the second protruding member being in contact with the first protruding member to electrically connect the first conductive member and the second conductive member when the sash is located in the closed position.

[0019] According to an embodiment, each of the variable transmittance window glasses can include a first glass layer, a variable transmittance film disposed on one surface of the first glass layer and having a transmittance variable by electrical connection, and an electrode terminal protruding from the variable transmittance film to the outside of the first glass layer and making direct or indirect electrical connection between the variable transmittance film and the corresponding first conductive member.

[0020] According to an embodiment, the electrode terminal can pass through an electrode terminal hole formed in the corresponding window frame and can be electrically connected with the first conductive member.

[0021] According to an embodiment, the sash can include an encapsulation member through which the electrode terminal passes, and the encapsulation member is inserted into the electrode terminal hole to cover the electrode terminal hole.

[0022] According to an embodiment, the window can further include a connection terminal coupled to the corresponding window frame and electrically connecting the electrode terminal with the first conductive member. The electrode terminal can include a first electrode terminal member electrically connected with the variable transmittance film and protruding toward a third surface, which is a surface of the sash facing the first glass layer among the surfaces of the sash, and a second electrode terminal member electrically connected with the connection terminal and formed to be bent from an end portion of the first electrode terminal member toward a fourth surface, which is a surface of the first glass layer facing the third surface.

[0023] According to an embodiment, the second electrode terminal member can be obliquely formed such that an end portion of the second electrode terminal member faces the third surface, and the connection terminal can include a first connection terminal member obliquely formed toward the fourth surface and electrically connected with the second electrode terminal by being in contact with the second electrode terminal member, and a second connection terminal member electrically connecting the first connection terminal member with the first conductive member by passing through a through-hole formed in the window frame.

[0024] According to an embodiment, the variable transmittance window glass can further include a second glass layer coupled to an opposite surface of the variable transmittance film, and the first glass layer and the second glass layer can be disposed such that a first spaced distance between the first glass layer and the corresponding window frame in a direction in which the electrode terminal protrudes is less than a second spaced distance between the second glass layer and the sash in a direction in which the electrode terminal protrudes.

[0025] According to an embodiment, the window can further include an electrode terminal engagement member disposed in the stepped space in which the first glass layer and the second glass layer do not overlap each other due to a difference between the first spaced distance and the second spaced distance when viewed in a direction in which the first glass layer and the second glass layer are stacked on each other, wherein the electrode terminal engagement member is coupled to at least a portion of the portion of the electrode terminal located in the stepped space and fixes at least the portion of the electrode terminal in the stepped space.

[0026] According to an embodiment, the window can further include a sealant that fills a space between the corresponding window frame and the variable transmittance window glass.

[0027] According to an embodiment, the variable transmittance window glass can further include a second glass layer spaced apart from an opposite surface of the variable transmittance film by a predetermined distance.

[0028] According to another aspect of the disclosure, a window includes a window frame having an opening defined therein through which an outdoor space and an indoor space communicate with each other, a pair of sashes configured to be installed in the window frame to slide in an opening direction and a closing direction opposite to the opening direction, a variable transmittance window glass configured to be fitted in the sash to open and close the opening together with the sash according to the sliding of the sash, the variable transmittance window glass having a transmittance variable by electrical connection, a power transmission part receiving power from an outside of the window frame and wirelessly transmitting the power, and a power reception part disposed on the sash and electrically connected with the variable transmittance window glass to supply the power transmitted from the power transmission part to the variable transmittance window glass.

[0029] According to an embodiment, a position in which each of the window frames closes the opening together with the corresponding variable transmittance window glass can be referred to as a closed position, and the corresponding power reception part can receive the power from the corresponding power transmission part when the sash is located at the closed position.

[0030] According to another aspect of the present disclosure, a window includes a window frame having an opening defined therein through which an outdoor space and an indoor space communicate with each other; a hinge rotatably coupled to a protrusion of the window frame about a predetermined rotation axis; a sash coupled to the hinge and configured to rotate according to rotation of the hinge; a variable transmittance window glass configured to fit into the sash to open and close the opening together with the sash according to rotation of the sash, the variable transmittance window glass having a transmittance variable by electrical connection; and a conductive member configured to supply power to the variable transmittance window glass, the conductive member including a first portion extending through the protrusion and electrically connected with an outside of the sash, a second portion extending through the hinge and electrically connected with the variable transmittance window glass, and a third portion extending through the protrusion and the hinge in a direction of the rotation axis and electrically connecting the first portion with the second portion.

[0031] According to another aspect of the present disclosure, a window includes a window frame having an opening defined therein through which an outdoor space and an indoor space communicate with each other; a hinge rotatably coupled to a protrusion of the window frame about a predetermined rotation axis; a sash coupled to the hinge and configured to rotate according to rotation of the hinge; a variable transmittance window glass configured to fit into the sash to open and close the opening together with the sash according to rotation of the sash, the variable transmittance window glass having a transmittance variable by electrical connection; and a conductive member configured to supply power to the variable transmittance window glass, the conductive member including a first portion extending through the protrusion and electrically connected with an outside of the sash, a second portion extending through the hinge and electrically connected with the variable transmittance window glass, and a third portion extending through the protrusion and the hinge in a direction of the rotation axis and electrically connecting the first portion with the second portion. BRIEF DESCRIPTION OF DRAWINGS

[0032] The above and other objects, features and advantages of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0033] Figure 1 is a cross-sectional view illustrating a window according to Embodiment 1-1 of the present disclosure;

[0034] Figure 2 is a cross-sectional view illustrating a state in which an opening of the window according to Embodiment 1-1 of the present disclosure is opened;

[0035] Figure 3 is a cross-sectional view illustrating an operation of the window according to Embodiment 1-1 of the present disclosure;

[0036] Figure 4 is a cross-sectional view illustrating a window according to Embodiment 1-2 of the present disclosure;

[0037] Figure 5 is a cross-sectional view illustrating an operation of the window according to Embodiment 1-2 of the present disclosure;

[0038] Figure 6is a cross-sectional view illustrating a case where the first conductive member of the window according to Embodiment 1-2 includes a first protruding member and the second conductive member includes a second protruding member;

[0039] Figure 7 is a cross-sectional view illustrating the window according to Embodiment 2-1 of the present disclosure;

[0040] Figure 8 is Figure 7 is an enlarged view of a portion indicated by a dotted line in

[0041] Figure 9 is a cross-sectional view illustrating the window according to Embodiment 2-2 of the present disclosure;

[0042] Figure 10 is Figure 9 is an enlarged view of a portion indicated by a dotted line in

[0043] Figure 11 is a cross-sectional view illustrating a case where the connection terminal of the window according to Embodiment 2-2 of the present disclosure includes a first connection terminal member;

[0044] Figure 12 is Figure 11 is an enlarged view of a portion indicated by a dotted line in

[0045] Figure 13A , Figure 13B , Figure 13C and Figure 13D are views illustrating examples of the variable transmittance glazing of the window;

[0046] Figure 14 is a cross-sectional view of the window of Embodiment 3 of the present disclosure;

[0047] Figure 15 is a cross-sectional view of the window of Embodiment 4-1 of the present disclosure;

[0048] Figure 16 is Figure 14 is an enlarged view of a portion indicated by a dotted line in

[0049] Figure 17 is a view illustrating the window according to Embodiment 4-2 of the present disclosure. DETAILED DESCRIPTION

[0050] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the exemplary drawings. In adding reference numerals to components in each drawing, it should be noted that even the same or equivalent components are denoted by the same reference numerals, even if they are shown on another drawing. Also, in describing the embodiments of the present disclosure, detailed description of well-known features or functions will be omitted in order not to unnecessarily obscure the principal subject matter of the present disclosure.

[0051] Embodiment 1-1

[0052] The window according to Embodiment 1-1 of the disclosure is a window having a low risk of damage to an assembly for electrical connection. The window according to Embodiment 1-1 of the disclosure can include a window frame 10, a pair of window sashes 20, a variable transmittance window glass 30, a first conductive member 40, and a second conductive member 50. Figure 1 FIG. 1 is a cross-sectional view illustrating a window according to Embodiment 1-1 of the disclosure. Figure 2 FIG. 2 is a cross-sectional view illustrating a state in which an opening of a window according to Embodiment 1-1 of the disclosure is opened. Figure 3 FIG. 3 is a cross-sectional view illustrating an operation of a window according to Embodiment 1-1 of the disclosure.

[0053] The window frame 10 can have an opening OP formed therein for connecting an indoor space with an outdoor space. The window sashes 20 can be installed in the window frame 10. The window sashes 20 can be installed in the window frame 10 so as to slide in an opening direction D1 and a closing direction D2 opposite to the opening direction D1. The variable transmittance window glass 30 can be inserted into the window sashes 20. The variable transmittance window glass 30 can open and close the opening OP together with the window sashes 20 according to the sliding of the window sashes 20. The variable transmittance window glass 30 can be formed such that its transmittance is changed by electrical connection.

[0054] The first conductive member 40 can be disposed on the window sashes 20 and can be electrically connected with the variable transmittance window glass 30. The first conductive member 40 can supply power to the variable transmittance window glass 30. The second conductive member 50 can be electrically connected with the first conductive member 40 and can supply power to the first conductive member 40 from the outside of the window frame 10. That is, when power is supplied to the second conductive member 50 from an external power source P and the second conductive member 50 is electrically connected with the first conductive member 40, power from the external power source P can be supplied to the variable transmittance window glass 30.

[0055] The external power source P can be controlled by a controller C. Based on a user's input, the controller C can perform control to adjust the power supplied to the variable transmittance window glass 30 by the external power source P. The controller C can include a processor and a memory. The processor can include a microprocessor such as a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a central processing unit (CPU), etc. The memory can store a control instruction based on which the processor generates an instruction for adjusting the power supplied to the variable transmittance window glass 30 by the external power source P. The memory can be a data memory such as a hard disk drive (HDD), a solid state drive (SSD), a volatile medium, a non-volatile medium, etc.

[0056] The window according to Embodiment 1-1 of the disclosure can include a first conductive member 40 disposed on the sash 20 and supplying power to the variable transmittance window glass 30, and a second conductive member 50 supplying external power to the first conductive member 40. Accordingly, the window can supply external power to the variable transmittance window glass 30, thereby changing the transmittance of the variable transmittance window glass 30.

[0057] Each of the first conductive members 40 can be connected to at least a portion of the first surface 21. The first surface 21 can be a surface facing the sash 20 among surfaces of the window frame 10.

[0058] The second conductive member 50 can be connected to at least a portion of the second surface 11. The second surface 11 can be a surface facing the first surface 21 among surfaces of the window frame 10. That is, the first conductive member 40 and the second conductive member 50 can be coupled to surfaces facing each other.

[0059] The first conductive member 40 and the second conductive member 50 can remain electrically connected to each other even when the sash 20 slides in the opening direction D1 and the closing direction D2. The opening direction D1 can be a direction in which the sash 20 moves to open the opening OP. For example, based on Figure 1 , the opening direction D1 can be a right direction. The closing direction D2 can be a direction opposite to the opening direction D1. For example, based on Figure 1 , the closing direction D2 can be a left direction.

[0060] Figure 3 is a cross-sectional view illustrating an operation of the window according to Embodiment 1-1 of the disclosure. Figure 3 is an enlarged view of a portion indicated by a dotted line in Figure 1 . The window according to Embodiment 1-1 of the disclosure can be disposed such that the first conductive member 40 and the second conductive member 50 remain electrically connected to each other even when the sash 20 slides in the opening direction D1 and the closing direction D2. Accordingly, power can be supplied to the corresponding variable transmittance window glass 30 regardless of whether the opening OP is opened or closed.

[0061] More specifically, the second conductive member 50 can extend from a first position L1 to a second position L2. That is, the second conductive member 50 is disposed in a straight line, or this means that the second conductive member 50 is continuously disposed at a predetermined interval. The first position L1 can be a position on the second surface 11 corresponding to an area in which the first conductive member 40 is disposed when the sash 20 is in a closed position. The closed position can be a position in which the sash 20 and the variable transmittance window glass 30 close the opening OP. That is, the sash 20 in the closed position can be understood as a sliding door in a closed state. Figure 1 is an example in which the sash 20 is in the closed position.

[0062] Figure 2 is a cross-sectional view showing a state in which the opening of the window according to Embodiment 1-1 of the disclosure is opened. As shown in Figure 2 , the second position L2 can be a position on the second surface 11 corresponding to a region where the first conductive member 40 is disposed when the sash 20 is moved in the opening direction D1 from the closed position to the maximum.

[0063] Since the second conductive member 50 is continuously disposed between the first position L1 and the second position L2, the first conductive member 40 and the second conductive member 50 can remain electrically connected to each other even when the sash 20 is slid, and power can be supplied to the variable transmittance window glass 30 at all times even when the sash 20 is slid. Accordingly, the transmittance of the variable transmittance window glass 30 can be adjusted.

[0064] Embodiment 1-2

[0065] Figure 4 is a cross-sectional view showing a window according to Embodiment 1-2 of the disclosure. Figure 5 is a cross-sectional view showing the operation of the window according to Embodiment 1-2 of the disclosure. Hereinafter, the window according to Embodiment 1-2 of the disclosure will be described with reference to Figure 4 and Figure 5 . Figure 5 shows an enlarged view of a portion indicated by a dotted line in Figure 4 .

[0066] The window according to Embodiment 1-2 differs from the window according to Embodiment 1-1 in that the first conductive member 40' and the second conductive member 50' are not electrically connected to each other at all times. Components that are the same as or correspond to components of the window according to Embodiment 1-1 are denoted by the same or corresponding reference numerals, and specific descriptions thereof will be omitted.

[0067] The first conductive member 40' and the second conductive member 50' can be electrically connected to each other when the sash 20 is located at a predetermined reference position. That is, the first conductive member 40' and the second conductive member 50' can be electrically disconnected from each other according to the sliding of the sash 20, and can be electrically connected to each other when the sash 20 is located at the predetermined reference position. The predetermined reference position can be the closed position.

[0068] More specifically, when the sash 20 is located at the closed position, the second conductive member 50' can be connected to a position on the window frame 10 corresponding to the position of the first conductive member 40'. The second conductive member 50' can be electrically connected to the first conductive member 40' when the sash 20 is located at the closed position. The second conductive member 50' can be electrically disconnected from the first conductive member 40' when the sash 20 deviates from the closed position.

[0069] Hereinafter, the window according to Embodiment 1-2 of the disclosure will be described with reference toFigure 6 An example of a structure for facilitating contact between the first conductive member 40" and the second conductive member 50" is described. Figure 6 is a cross-sectional view illustrating a case where the first conductive member 40" of the window according to Embodiment 1-2 of the present disclosure includes a first protruding member 41 and the second conductive member 50" includes a second protruding member 51. However, this is merely exemplary, and the structure of the first conductive member 40" and the second conductive member 50" is not limited thereto.

[0070] The first conductive member 40" can include the first protruding member 41. The first protruding member 41 can extend obliquely from the first surface 21 toward the second surface 11. The second conductive member 50" can include the second protruding member 51. The second conductive member 50" can extend obliquely from the second surface 11 toward the first surface 21. When the sash 20 is located in the closed position, the second protruding member 51 can be in contact with the first protruding member 41, and can electrically connect the first conductive member 40" with the second conductive member 50". At this time, the first surface 21 and the second surface 11 can be spaced apart from each other by a predetermined distance.

[0071] The first protruding member 41 and the second protruding member 51 can be configured to be elastically rotatable about a starting point from which the first protruding member 41 and the second protruding member 51 protrude. Since the first protruding member 41 and the second protruding member 51 are configured to be elastically rotatable, the first protruding member 41 and the second protruding member 51 can elastically support each other when in contact with each other, thereby increasing the contact force therebetween.

[0072] For example, a case where the first protruding member 41 and the second protruding member 51 are not present and the first conductive member and the second conductive member are parallel to each other can be considered. In this case, in order to bring the first conductive member and the second conductive member into contact by sliding, the spacing distance between the first surface 21 and the second surface 11 must coincide with the sum of the thickness of the first conductive member and the thickness of the second conductive member. In this case, since the possibility of error is high, the first conductive member and the second conductive member can not be well electrically connected.

[0073] The window according to Embodiment 1-2 of the present disclosure can include a first protruding member 41 obliquely protruding from the first surface 21 toward the second surface 11, and a second protruding member 51 obliquely protruding from the second surface 11 toward the first surface 21. Accordingly, as illustrated, when the sash 20 is located in the closed position, the first protruding member 41 and the second protruding member 51 can be in contact with each other. Accordingly, the electrical connection between the first conductive member 40" and the second conductive member 50" can be more effectively maintained.

[0074] Embodiment 2-1

[0075] Figure 7 is a cross-sectional view showing a window according to Embodiment 2-1 of the disclosure. Figure 8 is Figure 7 is an enlarged view of a portion indicated by a dotted line in Figure 7 and Figure 8 a window according to Embodiment 2-1 of the disclosure will be described.

[0076] Figures 7 to 12 is a cross-sectional view taken along line A-A in Figure 4 .

[0077] The window according to Embodiment 2-1 is different from the windows according to Embodiments 1-1 and 1-2 in aspects of a method for electrically connecting with the variable transmittance window glass 30. Components same as or corresponding to those of the windows according to Embodiments 1-1 and 1-2 are denoted by the same or corresponding reference numerals, and specific description thereof will be omitted.

[0078] The variable transmittance window glass 30 of the window according to Embodiment 2-1 of the disclosure can include a first glass layer 31, a variable transmittance film 32, and an electrode terminal 33. The variable transmittance window glass 30 can be a single layer window glass or a laminated window glass. The drawings related thereto are shown in Figure 13A and Figure 13B , which Figure 13A and Figure 13B will be described below.

[0079] The variable transmittance film 32 can be disposed on one surface of the first glass layer 31. The transmittance of the variable transmittance film 32 can be changed by electrical connection. The variable transmittance film 32 can be one of a polymer dispersed liquid crystal (PDLC), an electro-chromic (EC), and a suspended particle device (SPD). The electrode terminal 33 can make direct or indirect electrical connection between the variable transmittance film 32 and the first conductive member 40. The direct electrical connection can mean, for example, that the variable transmittance film 32 and the first conductive member 40 are connected by one conductor. The indirect electrical connection can mean, for example, that one conductor connected with the variable transmittance film 32 and another conductor connected with the first conductive member 40 are electrically connected with each other to make electrical connection between the variable transmittance film 32 and the first conductive member 40.

[0080] The electrode terminal 33 can protrude from the variable transmittance film 32 to the outside of the first glass layer 31. The outside of the first glass layer 31 can mean the outside of the area occupied by the first glass layer 31 when the first glass layer 31 is viewed in a direction in which the first glass layer 31 and the variable transmittance film 32 are stacked with each other.

[0081] The electrode terminal 33 can pass through the electrode terminal hole 23 formed in the sash 20 and can be electrically connected with the first conductive member 40. The electrode terminal hole 23 can be defined in a surface of the sash 20 that faces the first glass layer 31.

[0082] For example, in the case where the window does not have the electrode terminal hole 23, the electrode terminal 33 has to be disposed along the outer surface of the sash 20, and thus the aesthetic aspect of the window can not be attractive.

[0083] However, in the case of the window according to Embodiment 2-1 of the disclosure, the electrode terminal 33 can be embedded in the sash 20 through the electrode terminal hole 23, and thus the aesthetic aspect of the window can be improved.

[0084] The sash 20 can include a packing member 22. The packing member 22 can be inserted into the electrode terminal hole 23 to cover the electrode terminal hole 23. The packing member 22 can be configured so that the electrode terminal 33 passes therethrough. The packing member 22 can prevent the sealant 70 between the sash 20 and the variable transmittance window glass 30 from overflowing through the electrode terminal hole 23, or can prevent water from being introduced between the sash 20 and the variable transmittance window glass 30, thereby maintaining the air tightness of the window.

[0085] Hereinafter, a case where the variable transmittance window glass 30 is a laminated window glass will be described in detail. The laminated window glass can be understood as a window glass having a form in which glass layers are coupled to opposite surfaces of a variable transmittance film 32.

[0086] The variable transmittance window glass 30 of the window according to Embodiment 2-1 of the disclosure can further include a second glass layer 34. The second glass layer 34 can be coupled to the opposite face of the variable transmittance film 32. The first glass layer 31 and the second glass layer 34 can be disposed so that a first interval distance is smaller than a second interval distance. The first interval distance can be a distance by which the first glass layer 31 is spaced apart from the sash 20 in a direction in which the first glass layer 31 protrudes along the electrode terminal 33. The second interval distance can be a distance by which the second glass layer 34 is spaced apart from the sash 20 in a direction in which the second glass layer 34 protrudes along the electrode terminal 33.

[0087] The window according to Embodiment 2-1 of the disclosure can further include an electrode terminal engagement member 60. The electrode terminal engagement member 60 can be disposed in a stepped space. The stepped space can be a space in which the first glass layer 31 and the second glass layer 34 do not overlap with each other when viewed in a direction in which the first glass layer 31 and the second glass layer 34 are stacked on each other due to a difference between the first interval distance and the second interval distance.

[0088] The electrode terminal engaging member 60 can be coupled to at least a portion of a portion of the electrode terminal 33 located in the stepped space. The electrode terminal engaging member 60 can fix at least a portion of the electrode terminal 33 in the stepped space.

[0089] The window according to Embodiment 2-1 of the present disclosure can further include a sealant 70. The sealant 70 can fill a space between the sash 20 and the variable transmittance window glass 30. Hereinafter, a process of injecting the sealant 70 into the space between the sash 20 and the variable transmittance window glass 30 will be described in detail.

[0090] First, the variable transmittance window glass 30 is inserted into the sash 20. At this time, the electrode terminal 33 is allowed to pass through the electrode terminal hole 23 of the sash 20.

[0091] Second, the sealant 70 is injected into the space between the sash 20 and the variable transmittance window glass 30.

[0092] Third, air present in the space between the sash 20 and the variable transmittance window glass 30 is removed through the electrode terminal hole 23. At this time, a filter that passes air and blocks the sealant 70 can be coupled to the electrode terminal hole 23 to remove only air other than the sealant 70.

[0093] Finally, the sealant 70 is additionally injected into the space between the sash 20 and the variable transmittance window glass 30, and the encapsulation member 22 is coupled to the electrode terminal hole 23. At this time, after allowing the electrode terminal 33 to pass through the encapsulation member 22, the encapsulation member 22 is coupled to the electrode terminal hole 23.

[0094] Embodiment 2-2

[0095] Figure 9 FIG. 2-2B is a cross-sectional view illustrating a window according to Embodiment 2-2 of the present disclosure. Figure 10 is an enlarged view of a portion indicated by a dotted line in Figure 9 FIG. 2-2A is a cross-sectional view illustrating a window according to Embodiment 2-2 of the present disclosure. Figure 9 and Figure 10 The window according to Embodiment 2-2 of the present disclosure will be described with reference to FIGS. 2-2A and 2-2B. The window according to Embodiment 2-2 is different from the window according to Embodiment 2-1 in a method for electrically connecting between the variable transmittance film 32 and the first conductive member 40. Components the same as or corresponding to those of the window according to Embodiment 2-1 are denoted by the same or corresponding reference numerals, and detailed descriptions thereof will be omitted.

[0096] The window according to Embodiment 2-2 of the disclosure can further include a connection terminal 80. The connection terminal 80 can electrically connect the electrode terminal 33' with the first conductive member 40. That is, the electrode terminal 33' can be indirectly electrically connected with the first conductive member 40. The connection terminal 80 can be coupled to the sash 20'. The coupling of the connection terminal 80 with the sash 20' can include coupling the connection terminal 80 to the outside of the sash 20' and coupling the connection terminal 80 to the inside of the sash 20'.

[0097] The electrode terminal 33' can include a first electrode terminal member 33a and a second electrode terminal member 33b. The first electrode terminal member 33a can be electrically connected with the variable transmittance film 32. The first electrode terminal member 33a can protrude toward a third surface. The third surface can be a surface of the sash 20' that faces the first glass layer 31.

[0098] The second electrode terminal member 33b can be electrically connected with the connection terminal 80. The second electrode terminal member 33b can be bent from an end of the first electrode terminal member 33a toward a fourth surface. The fourth surface can be a surface of the first glass layer 31 that faces the third surface.

[0099] Hereinafter, examples of structures for facilitating contact between the electrode terminal 33" and the connection terminal 80' will be described in detail with reference to Figure 11 and Figure 12 Examples of structures for facilitating contact between the electrode terminal 33" and the connection terminal 80' will be described in detail with reference to Figure 11 is a cross-sectional view illustrating a case where the connection terminal 80' of the window according to Embodiment 2-2 of the disclosure includes a first connection terminal member 81. Figure 12 is an enlarged view of a portion indicated by a dotted line in Figure 11 However, this is merely exemplary, and the structures of the electrode terminal 33" and the connection terminal 80' are not limited thereto.

[0100] The second electrode terminal member 33b' can be formed obliquely such that an end portion faces the third surface. The connection terminal 80' can include a first connection terminal member 81 and a second connection terminal member 82. The first connection terminal member 81 can be configured to obliquely face the fourth surface. The first connection terminal member 81 can be electrically connected with the second electrode terminal member 33b' by being in contact with the second electrode terminal member 33b'. The second connection terminal member 82 can electrically connect the first connection terminal member 81 with the first conductive member 40. The second connection terminal member 82 can pass through a through-hole defined in the sash 20'. The through-hole can be formed through the first surface 21'.

[0101] The second electrode terminal member 33b' and the first connection terminal member 81 can be elastically rotatable about a starting point at which the second electrode terminal member 33b' and the first connection terminal member 81 start to protrude. Since the second electrode terminal member 33b' and the first connection terminal member 81 are elastically rotatable, when the second electrode terminal member 33b' and the first connection terminal member 81 come into contact with each other, they can elastically support each other, thereby increasing a contact force therebetween.

[0102] For example, in the case in which the electrode terminal and the connection terminal are disposed on the upper side of the window, the electrode terminal and the connection terminal can be spaced apart from each other due to the weight of the variable transmittance glazing. In this case, the electrode terminal and the connection terminal can be electrically disconnected from each other.

[0103] However, in the case of the window according to Embodiment 2-2 of the disclosure, the second electrode terminal member 33b' protruding toward the third surface and the first connection terminal member 81 protruding toward the fourth surface can come into contact with each other and can be electrically connected to each other. Accordingly, even when the variable transmittance glazing 30 moves downward due to its weight, an electrical connection between the electrode terminal 33" and the connection terminal 80' can be well maintained.

[0104] Embodiment 2-3

[0105] Figure 13A 、 Figure 13B 、 Figure 13C and Figure 13D are views showing examples of the variable transmittance glazing 30' of the window according to Embodiment 2-3 of the disclosure. Hereinafter, the window according to Embodiment 2-3 of the disclosure will be described with reference to Figure 13A 、 Figure 13B 、 Figure 13C and Figure 13D The window according to Embodiment 2-3 of the disclosure is different from the windows according to Embodiments 2-1 and 2-2 in the arrangement of the second glass layer 34'. Components which are the same as or correspond to those of the windows according to Embodiments 2-1 and 2-2 are denoted by the same or corresponding reference numerals, and specific descriptions thereof will be omitted.

[0106] The variable transmittance glazing 30' of the window according to Embodiment 2-3 of the disclosure can further include a second glass layer 34' spaced apart from the opposite surface of the variable transmittance film 32' by a predetermined distance. That is, the variable transmittance glazing 30' of the window according to Embodiment 2-3 of the disclosure can be a double glazing or a triple glazing.

[0107] Embodiment 3

[0108] Figure 14 is a cross-sectional view of a window according to Embodiment 3 of the disclosure. Hereinafter, the window according to Embodiment 3 of the disclosure will be described with reference to Figure 14A window according to Embodiment 3 of the present disclosure is described. The window according to Embodiment 3 differs from the windows according to the other embodiments in the method for electrically connecting with the variable transmittance film 32. Components that are the same as or correspond to components of the windows according to the other embodiments are denoted by the same or corresponding reference numerals, and specific description thereof will be omitted.

[0109] The window according to Embodiment 3 of the present disclosure can include a window frame 10, a pair of window sashes 20, a variable transmittance window pane 30, a power transmitting portion 52, and a power receiving portion 42. The window frame 10 can have an opening OP formed therein for connecting an indoor space with an outdoor space. The window sashes 20 can be installed in the window frame 10 so as to slide along an opening direction D1 and a closing direction D2 opposite to the opening direction D1. The variable transmittance window pane 30 can be inserted into the window sashes 20. The variable transmittance window pane 30 can open and close the opening OP together with the window sashes 20 according to the sliding of the window sashes 20. The transmittance of the variable transmittance window pane 30 can be changed by electrical connection.

[0110] The power transmitting portion 52 can receive power from the outside of the window frame 10 and can wirelessly transmit the power. The power receiving portion 42 can supply the power transmitted from the power transmitting portion 52 to the variable transmittance window pane 30. The power receiving portion 42 can be disposed on the window sashes 20 and can be electrically connected with the variable transmittance window pane 30.

[0111] The power receiving portion 42 can be disposed to receive the power from the power transmitting portion 52 when the window sashes 20 are located at the closed position.

[0112] The window according to Embodiment 3 of the present disclosure supplies power to the variable transmittance window pane 30 through the power transmitting portion 52 and the power receiving portion 42 that receives the power wirelessly from the power transmitting portion 52. Accordingly, the window according to Embodiment 3 has a low risk of the electrical connection components being separated due to friction, collision, etc. Accordingly, the window according to Embodiment 3 can efficiently supply power to the variable transmittance window pane 30.

[0113] Embodiment 4-1

[0114] Figure 15 is a cross-sectional view of a window according to Embodiment 4-1 of the present disclosure. Figure 16 is an enlarged view of the portion indicated by the dotted line in Figure 15 Figure 15 and Figure 16 A window according to Embodiment 4-1 of the present disclosure is described. The window according to Embodiment 4-1 differs from the windows according to the other embodiments in the coupling relationship between the window sashes 20 and the window frame 10. Components that are the same as or correspond to components of the windows according to the other embodiments are denoted by the same or corresponding reference numerals, and specific description thereof will be omitted.​

[0115] The window according to Embodiment 4-1 of the disclosure can include a window frame 10, a hinge 90, a sash 20, and a variable transmittance window glass 30. The window frame 10 can have an opening OP formed therein for connecting an indoor space with an outdoor space. The hinge 90 can be coupled to the protrusion 12 of the window frame 10 so as to be rotatable about a predetermined rotation axis AX. The sash 20 can be coupled to the hinge 90 and can be rotated according to the rotation of the hinge 90. That is, the window according to Embodiment 4-1 of the disclosure can be understood as a form such as a hinged door.

[0116] The variable transmittance window glass 30 can be inserted into the sash 20. The variable transmittance window glass 30 can open and close the opening OP together with the sash 20 according to the rotation of the sash 20. The variable transmittance window glass 30 can be formed such that its transmittance is changed by an electrical connection.

[0117] The window according to Embodiment 4-1 of the disclosure can include a conductive member 100. The conductive member 100 can supply power to the variable transmittance window glass 30. The conductive member 100 can include a first portion 101, a second portion 102, and a third portion 103. The first portion 101 can pass through the protrusion 12 and can be electrically connected with the outside of the sash 20. The second portion 102 can pass through the hinge 90 and can be electrically connected with the variable transmittance window glass 30. The third portion 103 can electrically connect the first portion 101 with the second portion 102. The third portion 103 can pass through the protrusion 12 and the hinge 90 in the direction of the rotation axis AX. That is, one end of the third portion 103 of the conductive member 100 of the window according to Embodiment 4 can be electrically connected to the first portion 101, and the second portion 102 can be electrically connected to the opposite end of the third portion 103.

[0118] In the case of the window according to Embodiment 4-1 of the disclosure, since the conductive member 100 supplies power to the variable transmittance window glass 30 passing through the protrusion 12 and the hinge 90, the conductive member 100 can be embedded in the sash 20 and the window frame 10. Accordingly, the aesthetics of the window are improved.

[0119] Embodiment 4-2

[0120] Figure 17 is a view illustrating a window according to Embodiment 4-2 of the disclosure. Hereinafter, the window according to Embodiment 4-2 of the disclosure will be described with reference to Figure 17 The window according to Embodiment 4-2 of the disclosure will be described. The window according to Embodiment 4-2 is different from the window according to Embodiment 4-1 in a conductive member 100'. Components which are the same as or correspond to those of the window according to Embodiment 4-1 are denoted by the same or corresponding reference numerals, and specific description thereof will be omitted.

[0121] The window according to Embodiment 4-2 of the disclosure can include a constraint member 110. The constraint member 110 can be connected to the window frame 10 and the sash 20, and can limit the rotation range of the sash 20 to a predetermined range.

[0122] The conductive member 100' of the window according to Embodiment 4-2 of the disclosure can include a constraint member 110. The conductive member 100' can be electrically connected with the outside of the variable transmittance window glass 30 and the window frame 10, and can supply power to the variable transmittance window glass 30.

[0123] In the case of the window according to Embodiment 4-2 of the disclosure, since the conductive member 100' supplies power to the variable transmittance window glass 30 through the constraint member 110, the conductive member 100' can be embedded in the constraint member 110. Accordingly, the aesthetic aspect of the window is improved.

[0124] As described above, according to the disclosure, the conductive member coupled to the sash and the conductive member coupled to the window frame are electrically connected in a contact manner. Accordingly, the risk of damaging the components for electrical connection can be low.

[0125] Further, according to the disclosure, the encapsulation member covers the through hole through which the electrode terminal passes. Accordingly, the air tightness of the window can be maintained.

[0126] In addition, according to the disclosure, the sash is designed such that the electrode terminal passes through the sash, and thus the electrode terminal is not exposed to the outside. Accordingly, the aesthetic aspect of the window is improved.

[0127] In the foregoing, although the disclosure has been described with reference to the example embodiments and the accompanying drawings, the disclosure is not limited thereto, and those skilled in the art to which the disclosure pertains can make various modifications and changes to the disclosure without departing from the spirit and scope of the disclosure claimed in the appended claims. Accordingly, the example embodiments of the disclosure are provided to explain the spirit and scope of the disclosure, but are not intended to limit them, such that the spirit and scope of the disclosure are not limited by the embodiments. The scope of the disclosure should be interpreted based on the appended claims, and all technical ideas within the scope equivalent to the claims should be included in the scope of the disclosure.

Claims

1. A window, comprising: A window frame having a defined opening through which an outdoor space communicates with an indoor space; A pair of window sashes are arranged in the window frame along an opening direction and a closing direction opposite to the opening direction; A variable transmittance window glass is configured to be fitted into a pair of said window sashes to open and close the opening together with the pair of said window sashes, the variable transmittance window glass having a transmittance that can be changed by electrical connection; Multiple first conductive components are disposed on a pair of the window sashes and electrically connected to the variable transmittance window glass to supply power to the variable transmittance window glass; as well as A second conductive member is electrically connected to a plurality of first conductive members to supply power from the outside of the window frame to the plurality of first conductive members, wherein each of the plurality of first conductive members is connected to at least a portion of a first surface, the first surface being the surface of the corresponding window sash facing the window frame. Wherein, the second conductive member is connected to at least a portion of the second surface, which is the surface of the window frame facing the first surface; The window sash is configured to close the opening together with the corresponding variable transmittance window glass in the closed position. The first surface and the second surface are spaced apart by a predetermined distance. The first conductive member includes a first protruding member that protrudes obliquely from the first surface toward the second surface, and The second conductive member includes a second protruding member that protrudes obliquely from the second surface toward the first surface. When the window sash is in the closed position, the second protruding member contacts the first protruding member to electrically connect the first conductive member and the second conductive member.

2. The window according to claim 1, wherein, Even when the window sash slides along the opening direction and the closing direction, the first conductive member and the second conductive member remain electrically connected to each other.

3. The window according to claim 2, wherein, When the window sash is in the closed position, it closes the opening together with the corresponding variable transmittance window glass, and The second conductive member is configured to extend continuously from a first position on the second surface to a second position on the second surface. Wherein, when the window sash is in the closed position, the first conductive member is disposed in the first position, and When the window sash slides to its maximum extent from the closed position along the opening direction, the first conductive member is positioned at the second position.

4. The window according to claim 1, wherein, When the window sash is in a predetermined reference position, the first conductive member and the second conductive member are electrically connected to each other.

5. The window according to claim 4, wherein, When the window sash is in the closed position, it closes the opening together with the corresponding variable transmittance window glass. When the window sash is in the closed position, the second conductive member is connected to the window frame, and When the window sash is in the closed position, the second conductive member is connected to the first conductive member, and when the window sash deviates from the closed position, the second conductive member is disconnected from the first conductive member.

6. A window, comprising: A window frame having a defined opening through which an outdoor space communicates with an indoor space; A pair of window sashes are arranged in the window frame along an opening direction and a closing direction opposite to the opening direction; A variable transmittance window glass is configured to be fitted into a pair of said window sashes to open and close the opening together with the pair of said window sashes, the variable transmittance window glass having a transmittance that can be changed by electrical connection; Multiple first conductive components are disposed on a pair of the window sashes and electrically connected to the variable transmittance window glass to supply power to the variable transmittance window glass; as well as A second conductive member is electrically connected to a plurality of first conductive members to supply power from the outside of the window frame to the plurality of first conductive members; Each of the variable transmittance window glass comprises: First glass layer; A variable transmittance film is disposed on one surface of the first glass layer, the variable transmittance film having a transmittance that can be changed via an electrical connection; and Electrode terminals protrude from the variable transmittance film to the outside of the first glass layer, and the electrode terminals are configured to make direct or indirect electrical connections between the variable transmittance film and the corresponding first conductive member. The window also includes: A connection terminal is coupled to the corresponding window sash and configured to electrically connect the electrode terminal to the first conductive member; The electrode terminals include a first electrode terminal component and a second electrode terminal component. The first electrode terminal component is electrically connected to the variable transmittance film and extends toward a third surface, which is the surface of the window sash facing the first glass layer. The second electrode terminal member is electrically connected to the connection terminal and is configured to bend from the end of the first electrode terminal member toward a fourth surface, the fourth surface being the surface of the first glass layer facing the third surface.

7. The window according to claim 6, wherein, The electrode terminal extends through an electrode terminal hole defined in the corresponding window sash and is electrically connected to the first conductive member.

8. The window according to claim 7, wherein, The window sash includes an encapsulation member through which the electrode terminals extend, and the encapsulation member passes through the electrode terminal hole to cover the electrode terminal hole.

9. The window according to claim 6, wherein, The second electrode terminal member is tilted such that the end of the second electrode terminal faces the third surface, and The connection terminal includes: A first connecting terminal member extends obliquely toward the fourth surface and is electrically connected to the second electrode terminal member by contacting it; and The second connection terminal member is configured to electrically connect the first connection terminal member to the first conductive member by extending through a through hole defined in the window frame.

10. The window of claim 6 further includes a sealant disposed in the space between the corresponding window sash and the variable transmittance window glass.

11. The window according to claim 6, wherein, The variable transmittance window glass further includes a second glass layer, which is spaced at a predetermined distance from the opposite surface of the variable transmittance film.

12. A window, comprising: A window frame having a defined opening through which an outdoor space communicates with an indoor space; A pair of window sashes are arranged in the window frame along an opening direction and a closing direction opposite to the opening direction; A variable transmittance window glass is configured to be fitted into a pair of said window sashes to open and close the opening together with the pair of said window sashes, the variable transmittance window glass having a transmittance that can be changed by electrical connection; Multiple first conductive components are disposed on a pair of the window sashes and electrically connected to the variable transmittance window glass to supply power to the variable transmittance window glass; as well as A second conductive member is electrically connected to a plurality of first conductive members to supply power from the outside of the window frame to the plurality of first conductive members; Each of the variable transmittance window glass comprises: First glass layer; A variable transmittance film is disposed on one surface of the first glass layer, the variable transmittance film having a transmittance that can be changed via an electrical connection; and Electrode terminals protrude from the variable transmittance film to the outside of the first glass layer, and the electrode terminals are configured to make direct or indirect electrical connections between the variable transmittance film and the corresponding first conductive member. The variable transmittance window glass further includes a second glass layer, which is coupled to the opposite surface of the variable transmittance film. The first glass layer and the second glass layer are configured such that a first interval distance between the first glass layer and the corresponding window frame along the direction in which the electrode terminal protrudes is less than a second interval distance between the second glass layer and the window sash along the direction in which the electrode terminal protrudes.

13. The window of claim 12, further comprising an electrode terminal engagement member disposed in a stepped space, wherein, when viewed along a direction in which the first glass layer and the second glass layer are stacked on top of each other, the first glass layer and the second glass layer are spaced apart from each other due to the difference between the first spacing distance and the second spacing distance. in, The electrode terminal engagement member is coupled to at least a portion of the electrode terminal located in the stepped space, and is configured to fix at least a portion of the electrode terminal in the stepped space.

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