JP2016211318A - Window member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a window member capable of suppressing dew condensation on a glass plate or a window frame.SOLUTION: A window member 1 includes: a multi-layered glass 20; a window frame 5; and a heater 4. The multi-layered glass 20 has two glass plates 2a and 2b which are disposed being separated from each other in a thickness direction of the multi-layered glass 20, and a liquid heating medium filling a space between the two glass plates 2a and 2b. The window frame 5 holds the multi-layered glass 20. The heater 4 is held by a window frame 5 and heats a heating medium 3 and the window frame 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates generally to window members, and more particularly to window members having double glazing.

  2. Description of the Related Art Conventionally, a technique for preventing dew condensation on an indoor glass by heating the indoor glass of a multilayer glass having an outdoor glass and an indoor glass (see, for example, Patent Document 1). In patent document 1, the electric current is sent through the electrically conductive film provided in the indoor side glass, and the indoor side glass is heated to prevent dew condensation on the indoor side glass.

JP 2014-76937 A

  However, in Patent Document 1, only the indoor glass of the multilayer glass is directly heated, so that there is a possibility that the window frame holding the multilayer glass is condensed.

  This invention is made | formed in view of the said reason, The objective is to provide the window member which can suppress dew condensation of both a glass plate and a window frame.

  The window member of the present invention includes a multilayer glass, a window frame that holds the multilayer glass, and a heating device, and the multilayer glass is disposed at least in the thickness direction of the multilayer glass. Two glass plates and a liquid heat medium that fills a space between the at least two glass plates, and the heating device is held by the window frame and heats the heat medium and the window frame. Features.

  In this invention, there exists an effect that the dew condensation of both a glass plate and a window frame can be suppressed.

1A is a front view illustrating a schematic configuration of a window member in Embodiment 1. FIG. 1B is a cross-sectional view taken along the line AA in FIG. 1A. FIG. 2A is a front view illustrating a schematic configuration of a first modification of the window member in the first embodiment. 2B is a schematic configuration diagram corresponding to the BB cross section of FIG. 2A. It is a front view which shows schematic structure of the 2nd modification of the window member in Embodiment 1. FIG. It is a front view which shows schematic structure of the window member in Embodiment 2. FIG. It is a front view which shows schematic structure of the modification of the window member in Embodiment 2. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
A schematic configuration diagram of the window member 1 of the present embodiment is shown in FIGS. 1A and 1B. In addition, each figure demonstrated in the following embodiment is a typical figure, and ratio of each magnitude | size and thickness of each component does not necessarily reflect an actual dimensional ratio.

  The window member 1 of the present embodiment is configured to include a multilayer glass 20, a heating device 4, and a window frame 5, and is provided at an opening of a wall 100 of a building and used as a window. Note that the directions used in the following description are defined as the vertical direction in FIG. 1A and the horizontal direction in FIG. In FIG. 1B, the left side of the window member 1 is the outdoor side, and the right side is the indoor side.

  The multilayer glass 20 has two glass plates 2 a and 2 b and a heat medium 3.

  Each of the two glass plates 2a and 2b is made of a glass material and is formed in a rectangular plate shape. The “glass material” here includes not only glass (eg, soda lime glass) containing silicate as a main component but also organic glass containing acrylic resin, polycarbonate, or the like as a main component. Moreover, the glass plates 2a and 2b have translucency that allows light to pass therethrough, and it is more desirable that the glass plates 2a and 2b have transparency so that scattering of transmitted light can be ignored and objects can be clearly identified through the glass plates 2a and 2b.

  The glass plates 2a and 2b are disposed facing each other in the thickness direction of the multilayer glass 20 (left and right direction in FIG. 1B), and the glass plate 2a is located on the indoor side and the glass plate 2b is located on the outdoor side. A liquid heat medium 3 is provided in the space (gap) between the glass plates 2a and 2b.

  The heat medium 3 is a liquid having a higher thermal conductivity than air and fills the space between the glass plates 2a and 2b. The heat medium 3 is used to transmit heat from the heating device 4 to the glass plates 2a and 2b. The heat medium 3 is appropriately selected from water, saline, silicone oil, ethylene glycol, diethylene glycol, propylene glycol, methyl alcohol, isopropanol, and the like. The heat medium 3 has a light-transmitting property that allows light to pass therethrough, and it is more desirable that the heat medium 3 has a transparency that can ignore the scattering of the transmitted light and clearly identify an object through the heat medium 3. The heat medium 3 is preferably composed of an antifreeze solution in order to prevent freezing in winter. The term “antifreeze” as used herein refers to a liquid that has a relatively low freezing point and does not freeze even in winter in the cold region at outside air temperatures. Examples of the antifreeze liquid include silicone oil and ethylene glycol. Further, the window member 1 includes a joining member 11 in order to hold the liquid heat medium 3 between the glass plates 2a and 2b and prevent leakage.

  The joining member 11 is formed in a rectangular frame shape along the edges of the glass plates 2a and 2b, and is provided between the glass plates 2a and 2b. The bonding member 11 is in close contact with the glass plates 2 a and 2 b to form a space surrounded by the glass plates 2 a and 2 b and the bonding member 11. In the present embodiment, the joining member 11 functions as a sealing member, and the liquid heat medium 3 is filled in a sealing space surrounded by the glass plates 2 a and 2 b and the joining member 11. The joining member 11 is made of a material having a relatively high thermal conductivity. Examples of the joining member 11 include a rubber elastic body obtained by curing a one-component condensation type liquid silicone rubber adhesive containing a metal filler. A heating device 4 is provided outside the joining member 11 (on the side opposite to the heat medium 3). The joining member 11 may be provided along the end surfaces of the glass plates 2a and 2b, and may be configured to form a space surrounded by the glass plates 2a and 2b and the joining member 11. In addition, a spacer or the like may be provided between the glass plates 2a and 2b in order to keep the distance between the glass plates 2a and 2b.

  The heating device 4 includes a heat generating portion selected from a heater (for example, a sheathed heater), a Peltier element, and the like, and is provided so that the heat generating portion is in contact with the bonding member 11. In the present embodiment, the heating device 4 includes a heater (seeds heater), and is separated from each other in the left-right direction by two points along each of the upper side and the lower side of the joining member 11 formed in a rectangular frame shape. Are arranged. As described above, since the joining member 11 is made of a material having a relatively high thermal conductivity, the heat of the heating device 4 is transmitted to the heat medium 3 through the joining member 11. That is, the heating device 4 is configured to heat the heat medium 3.

  The holding member 12 is formed in a rectangular frame shape along the end surfaces of the glass plates 2a and 2b, and holds the heating device 4 by fitting the heating device 4 into a recess formed on the inner surface. The holding member 12 is made of a material having a relatively high thermal conductivity (for example, a rubber elastic body obtained by curing a one-component condensation type liquid silicone rubber adhesive containing a metal filler), like the bonding member 11. It is in contact with the heat generating part of the heating device 4.

  The window frame 5 is a so-called sash, and holds the multilayer glass 20. The window frame 5 is formed in a rectangular frame shape, and a recess 51 is provided on the entire inner surface. The end portions of the glass plates 2 a and 2 b and the holding member 12 (including the heating device 4) are fitted into the concave portion 51 of the window frame 5. That is, the window frame 5 holds the glass plates 2a and 2b, the heating device 4, and the holding member 12. And the window frame 5 holding the glass plates 2a and 2b is attached to the opening provided in the wall 100 of the building. A packing may be provided between the window frame 5 and the glass plates 2a and 2b in order to prevent water from entering.

  The window frame 5 holds the holding member 12 and is in contact with the holding member 12. As described above, since the holding member 12 is made of a material having relatively high thermal conductivity, the heating device 4 and the window frame 5 are thermally coupled via the holding member 12. That is, the heating device 4 is configured to heat the window frame 5.

  The heating device 4 is connected to the power supply wiring routed through the wall 100 of the building through the window frame 5 and the holding member 12, and is supplied with power from the commercial power supply via the power supply wiring.

  As described above, the window member 1 of the present embodiment includes the multilayer glass 20, the window frame 5, and the heating device 4. The double-glazed glass 20 includes two glass plates 2a and 2b that are arranged apart from each other in the thickness direction of the double-glazed glass 20, and a liquid heat medium 3 that fills a space between the two glass plates 2a and 2b. . The window frame 5 holds the multilayer glass 20. The heating device 4 is held by the window frame 5 and heats the heat medium 3 and the window frame 5.

  The heating device 4 is operated mainly by a user in winter, and generates heat to heat the heat medium 3. The heat medium 3 fills the space between the glass plates 2 a and 2 b, and heat from the heating device 4 is transmitted to the glass plates 2 a and 2 b through the heat medium 3. Furthermore, since the heat medium 3 is in a liquid state, convection is generated, and heat from the heating device 4 can be efficiently transmitted to the entire glass plates 2a and 2b. Thus, the glass plates 2a and 2b are indirectly heated through the heat medium 3 to warm the whole. Accordingly, the glass plates 2a and 2b have a reduced temperature difference (temperature distribution) for each place in the same plane of the glass plates 2a and 2b as compared with a case where the heaters or the like are directly heated by contact. By reducing the temperature difference (temperature distribution) between the glass plates 2a and 2b, shrinkage and expansion of the glass plates 2a and 2b due to the temperature difference are suppressed, and damage to the glass plates 2a and 2b can be prevented.

  Furthermore, the heating device 4 heats both the glass plates 2 a and 2 b and the window frame 5. By heating the glass plates 2a, 2b and the window frame 5 by the heating device 4, for example, condensation of both the glass plates 2a, 2b and the window frame 5 in winter can be suppressed.

  Moreover, it is preferable that the heat medium 3 is an antifreeze liquid. By using the antifreeze liquid for the heat medium 3, the heat medium 3 can be prevented from freezing, and the glass plates 2a and 2b can be prevented from being damaged due to the freezing of the heat medium 3.

  Next, the modification of the window member 1 of this embodiment is shown.

  First, the window member 1A of the first modification will be described. A schematic configuration diagram of the window member 1A is shown in FIGS. 2A and 2B. In addition to the configuration of the window member 1, the window member 1 </ b> A according to the present modification is based on the temperature of the air on one side of the multilayer glass 20 and the temperature of the air on the other side of the multilayer glass 20. 4 is further provided.

  The control device 6 is provided in the window frame 5 and receives the measurement results of the first temperature sensor 61 and the second temperature sensor 62. The first temperature sensor 61 is provided indoors (on the right side in FIG. 2B) on one side of the multilayer glass 20, measures the indoor air temperature (room temperature), and transmits the measurement result to the control device 6. The second temperature sensor 62 is provided outdoors (the left side in FIG. 2B) on the other side of the multilayer glass 20, measures the outdoor temperature (outside temperature), and transmits the measurement result to the control device 6. The communication method between the control device 6 and the first sensor and the second sensor may be wired communication using a signal line or wireless communication using a radio signal. The first temperature sensor 61 and the second temperature sensor 62 are desirably provided at positions away from the glass plates 2a and 2b so as not to measure the temperatures of the glass plates 2a and 2b themselves. Furthermore, the first temperature sensor 61 is more preferably provided at a position within about several cm from the indoor glass plate 2a so as to measure the room temperature in the vicinity of the indoor glass plate 2a.

  Then, the control device 6 determines whether or not condensation is likely to occur on the glass plates 2a and 2b and the window frame 5 based on the room temperature and the outside air temperature. For example, the control device 6 determines that the dew condensation is likely to occur when the room temperature is increased by the heater in winter and the temperature difference between the room temperature and the outside air temperature is equal to or greater than the threshold value. In addition, the ease with which condensation occurs also affects the height of the room temperature, and the lower the room temperature, the smaller the amount of saturated water vapor in the air, so condensation tends to occur. Therefore, the control device 6 may be configured to determine whether or not it is a situation in which condensation is likely to occur based on the room temperature.

  The control device 6 is connected to each heating device 4 via a control line 60 and controls the operation of each heating device 4. Specifically, when it is determined that the dew condensation is likely to occur based on the room temperature and the outside air temperature, the control device 6 operates the heating device 4 to warm the glass plates 2a and 2b and the window frame 5. . Thereby, since the glass plates 2a and 2b and the window frame 5 are warmed in a situation where condensation is likely to occur, the condensation of the glass plates 2a and 2b and the window frame 5 can be suppressed. Further, the heating device 4 is not operated under a situation where the possibility of dew condensation is low (for example, a situation where the temperature difference between the room temperature and the outside air temperature is small). That is, in this modification, it is suppressed that the heating apparatus 4 operates unnecessarily, and an energy saving effect can be obtained.

  In addition, the control apparatus 6 may be comprised so that it may be judged whether it is the condition where condensation tends to generate | occur | produce based also on indoor relative humidity. Condensation is likely to occur because of the relative humidity in the room, and the higher the relative humidity, the easier it is for condensation to occur. The control device 6 determines whether or not condensation is likely to occur based on a temperature difference between room temperature and outside temperature, room temperature, indoor relative humidity, and the like. The accuracy of determining whether or not there is is improved.

  Next, the window member 1B of the second modification will be described. The schematic block diagram of the window member 1B is shown in FIG. The window member 1 </ b> B of this modification further includes a cooling device 41 that cools the heat medium 3 in addition to the configuration of the window member 1.

  The cooling device 41 includes a Peltier element 42, is held by the holding member 12, and cools the heat medium 3 through the joining member 11. The Peltier element 42 has a first surface and a second surface. Depending on the polarity of the current supplied to the Peltier element 42, one of the first surface and the second surface absorbs (cools) the other surface. Radiates heat. The Peltier element 42 is provided so that the first surface and the second surface face each other in the thickness direction of the multilayer glass 20, and the first surface is located on the indoor side and the second surface is located on the outdoor side. And the cooling device 41 cools the heat medium 3 using the 1st surface of the Peltier device 42 as a heat absorption part (cooling part). In order to secure the heat dissipation efficiency of the Peltier element 42, it is desirable to provide openings in the holding member 12 and the window frame 5 to expose the second surface (heat dissipation part) of the Peltier element 42. Furthermore, a heat radiating fin may be provided on the second surface of the Peltier element 42.

  With the above configuration, the cooling device 41 cools the heat medium 3, whereby the glass plates 2 a and 2 b are cooled via the heat medium 3. The cooling device 41 is operated mainly by a user in summer, and the window member 1B can be used as a cooling aid for an air conditioner or the like by cooling the glass plates 2a and 2b.

  Further, the Peltier element 42 can operate the first surface as a heat radiating part (heat generating part) by reversing the polarity of the current supplied to the Peltier element 42 when the first surface is used as a heat absorbing part. The heating medium 3 and the window frame 5 can be heated. That is, the cooling device 41 can also function as the heating device 4. In other words, the heating device 4 in the present modification is configured to include the Peltier element 42. Thereby, the heating device 4 can also serve as a cooling device 41 that cools the heat medium 3. As described above, the heating device 4 is operated mainly in winter in order to suppress the condensation of the glass plates 2a and 2b and the window frame 5, and the cooling device 41 is operated mainly in summer as an aid for cooling. That is, since the heating device 4 and the cooling device 41 are operated at different times, the convenience of switching between the heating device 4 and the cooling device 41 using the Peltier element 42 is high.

  In addition, the number of the heating apparatuses 4 and the place where the heating apparatus 4 is provided are not limited to the above. For example, the heating device 4 may be provided along the left side and the right side of the joining member 11 formed in a rectangular frame shape. Alternatively, the heating device 4 may be provided along the entire circumference of the bonding member 11.

  Moreover, in this embodiment, although the heat medium 3 is hold | maintained in the space between glass plate 2a, 2b using the joining member 11, it is not limited to the said structure. For example, the heat medium 3 is held in the space between the first glass plate and the second glass plate by providing the first glass plate with a recess, filling the recess with the heat medium 3 and closing the recess with the second glass plate. It may be a configuration.

  Moreover, although the multilayer glass 20 of this embodiment is comprised using the two glass plates 2a and 2b, the number of glass plates is not limited to two. For example, the multi-layer glass 20 may be composed of a so-called three-layer glass provided with three glass plates. In this case, it is not necessary to fill all the glass plates with the heat medium 3. For example, the space between the indoor side glass plate and the intermediate glass plate of the three-layer glass may be filled with the heat medium 3, and the space between the outdoor side glass plate and the intermediate glass plate may be used as an air layer.

In this embodiment, the window member 1 (1A, 1B) is used to form a fixed window. However, the type of the window is not limited to a fixed window, and a sliding window is used. It may be a movable window such as a raising / lowering window, a vertical sliding window, or a side sliding window. When the window member 1 (1A, 1B) is used for a movable window, the window frame 5 is attached to an outer frame (sash frame) provided in the opening of the wall 100 of the building. In this case, the heating device 4 is supplied with power using non-contact power feeding. For example, it is possible to supply power from the commercial power supply to the heating device 4 by non-contact power supply by providing a power supply coil in the outer frame and a power reception coil in the window frame 5 and electrically coupling the power supply coil and the power reception coil. Become. Furthermore, an electrode may be provided in the window frame 5 and the outer frame, and the electrodes may be in contact with each other when the window is closed, and power may be supplied to the heating device 4.
(Embodiment 2)
FIG. 4 shows a schematic configuration diagram of the window member 1C of the present embodiment. 1C of window members of this embodiment are further provided with the stirring apparatus 7 in addition to the structure of the window member 1 of embodiment. In addition, the same code | symbol is attached | subjected to the same structure as the window member 1 of Embodiment 1, and description is abbreviate | omitted.

  The stirring device 7 stirs the heat medium 3. The stirring device 7 is configured by, for example, a magnetic stirrer, and includes a stirring bar 71 and a driving device 72.

  The stirrer 71 has a magnet inside and is provided in the liquid heat medium 3. The shape of the stirrer 71 in a plan view is a cross shape, and a flow is generated in the liquid heat medium 3 by rotating. The specific gravity of the stirring bar 71 is larger than the specific gravity of the heat medium 3 and sinks into the heat medium 3. Further, the shape of the stirring bar 71 is not limited to a cross shape, and may be formed in a rod shape, for example.

  The drive device 72 includes a magnet and a motor that rotates the magnet. The driving device 72 is provided on the window frame 5 and is disposed below the lower side of the joining member 11 formed in a rectangular frame shape. The magnet of the driving device 72 and the magnet of the stirring bar 71 are magnetically coupled via the joining member 11.

  The window member 1 </ b> C of the present embodiment includes two stirring devices 7 and is disposed apart in the left-right direction. The number and position of the stirring device 7 are not limited to the above.

  The stirring device 7 can rotate the stirring bar 71 having a magnet magnetically coupled to the magnet of the driving device 72 by rotating the magnet of the driving device 72 using a motor. When the stirrer 71 provided in the heat medium 3 rotates, a flow of the heat medium 3 is generated in the rotation axis direction of the stirrer 71 (for example, from bottom to top), and the heat medium 3 is stirred. Thereby, the heat medium 3 flows in the space formed between the glass plates 2a and 2b, the temperature difference of the heat medium 3 is reduced, and the heat of the heating device 4 is efficiently transmitted to the entire glass plates 2a and 2b. can do.

  Next, the modification of the window member 1 of this embodiment is shown in FIG. The window member 1 </ b> D of this modification includes a circulation device 8 instead of the stirring device 7.

  The circulation device 8 takes out the heat medium 3 from a predetermined place in the space formed between the two glass plates 2a and 2b and returns it to a different place in the space formed between the two glass plates 2a and 2b. The circulation device 8 includes a pump 81, and an upper pipe 82 and a lower pipe 83 that allow the space between the glass plates 2 a and 2 b to communicate with the pump 81.

  The pump 81 is provided on the window frame 5 and is disposed on the right side of the right side of the joining member 11 formed in a rectangular frame shape. The upper pipe 82 is held by the holding member 12, one end is connected to the pump 81, and the other end is connected to the upper opening 111 formed at the center in the left-right direction on the upper side of the joining member 11. The lower pipe 83 is held by the holding member 12, and one end is connected to the pump 81, and the other end is connected to the lower opening 112 formed at the center in the left-right direction on the lower side of the joining member 11.

  The circulation device 8 circulates the heat medium 3 by operating the pump 81. For example, the pump 81 takes out the heat medium 3 in the upper place in the space formed between the glass plates 2 a and 2 b through the upper pipe 82. Then, the pump 81 returns (feeds) the taken-out heat medium 3 to the lower position of the space formed between the glass plates 2a and 2b via the lower pipe 83. Thereby, the heat medium 3 circulates through the pump 81, the upper pipe 82, and the lower pipe 83. The circulation direction of the heat medium 3 is not limited to the above, and the heat medium 3 taken out via the lower pipe 83 may be returned via the upper pipe 82.

  In this way, by using the circulation device 8 to move the heat medium 3 in the space formed between the glass plates 2a and 2b, the temperature difference of the heat medium 3 is reduced, and the heat of the heating device 4 is reduced. It can transmit efficiently to the whole glass plates 2a and 2b.

  The number of the circulation devices 8 and the positions of the openings provided in the joining member 11 are not limited to the above. The window member 1D may include a plurality of circulation devices 8, and the right side and the left side of the joining member 11 An opening may be provided in.

  Moreover, embodiment mentioned above is an example of this invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made according to design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it can be changed.

1, 1A, 1B, 1C, 1D Window member multilayer glass 20
2a, 2b Glass plate 3 Heat medium 4 Heating device 41 Cooling device 42 Peltier element 5 Window frame 6 Control device 7 Stirring device 8 Circulating device

Claims (7)

With double glazing,
A window frame holding the multilayer glass;
A heating device,
The multilayer glass is
At least two glass plates disposed apart in the thickness direction of the multilayer glass;
A liquid heat medium filling the space between the at least two glass plates,
The said heating apparatus is hold | maintained at the said window frame, and heats the said heat medium and the said window frame. The window member characterized by the above-mentioned. The window member according to claim 1, wherein the heat medium is an antifreeze. The window member according to claim 1, further comprising a stirring device that stirs the heat medium. The window member according to claim 1, further comprising a circulation device that takes out the heat medium from a predetermined place in the space and returns the heat medium to a different place in the space. The apparatus further comprises a control device that controls the operation of the heating device based on the temperature of the air on one side of the multilayer glass plate and the temperature of the air on the other side of the multilayer glass plate. The window member of any one of Claims 1-4. The window device according to claim 1, wherein the heating device includes a Peltier element. The window member according to any one of claims 1 to 6, further comprising a cooling device that cools the heat medium.

Images