JP2019196700A5 - - Google Patents

Description

Energy saving method of window opening

  The present invention is a simple type that can be attached to a window frame or an outer wall surface on the outdoor side of a window opening for the purpose of saving energy required for cooling and heating when heating and cooling a room having a window opening using energy. The present invention relates to a device and a method of using the window cover to save energy and prevent dew condensation on the indoor side of the window opening.

  Because there is a temperature difference between the outside air temperature and the indoor temperature when cooling and heating the room, hot air enters the room from the high temperature outside air through the window during cooling, and cool air enters the room from the low temperature outside air through the window during heating. It is widely known that the heat of penetration can be reduced by closing the curtain. However, it is notorious that simply closing the curtain will allow room air to circulate through the gap between the curtain and the walls that are open up, down, left, and right, and that the air in the window space between the window and the curtain will enter the room. Absent.

  This air circulation in the room is called convection, and the air in the space between the window and the curtain between the window and the curtain is warmed up through the window heated by the outside air during cooling, and then the room air cooled by the cooling is cooled by the curtain. Convection occurs between the air in the window space and the room air by being drawn into the window space from below, and conversely during heating, after the air in the window space is cooled down through the window cooled by the outside air and descends, When the room air warmed by the air is drawn into the window space from above the curtain, convection occurs between the air in the window space and the room air, and the convection of the air is limited as long as there is a temperature difference between the room temperature and the outside air temperature. As it continues, there is a large energy loss during cooling and heating.

  In winter, dew condensation on the indoor side of the window is a major problem. The cause of dew condensation on the indoor side of the window is that the absolute vapor pressure of water vapor is almost constant everywhere in an unpartitioned indoor space, whereas the saturated vapor pressure of water vapor in the air decreases as the temperature decreases. As the outside air temperature decreases and the temperature of the air near the window in the room decreases, the saturated vapor pressure of the water vapor in the air near the window decreases, and the saturated vapor pressure of the water vapor in the air near the window becomes lower than the absolute pressure of the water vapor in the room air. The water vapor in the air near the window cannot be kept as it is, and condenses in order from a lower temperature to form dew.

  Even if a general curtain is impervious to light, there is a certain amount of air permeability, so that water vapor can pass through freely, so there is no partition for water vapor, so close the curtain and close the curtain. By performing energy saving by shielding the air, the temperature of the air at the window lowers than when not partitioned by a curtain and approaches the outside air temperature, so that dew condensation easily occurs.

  In order to solve such a problem, for example, Patent Literature 1 discloses a device that saves energy and prevents dew condensation by covering the entire outer wall with a heat-insulating rotatable structure. Installation is difficult due to the cost and labor involved in additional installation.

  Patent Literature 1 discloses a method of installing a roll screen that is fixed to upper, lower, left, and right window frames on the outdoor side of a window opening, but is widely used because installation work and equipment costs are high. It is difficult to do so.

  Utility Model Publication 1 discloses a method of maintaining a closed space on the outdoor side of a window by mounting a protective screen covering the entire surface of the window from the outdoor side on the outdoor side of the window. It is difficult to disseminate it because the cost of installation work and equipment becomes expensive.

Patent Registration No. 2662753

Patent publications

Patent publication 1

Patent Publication No. 2005-113577

Utility model publications

Utility Model Publication 1

Utility Model Publication No. 1982-159989

  The existing general window openings have extremely poor heat insulation performance compared to general external walls, and are the places that require the most measures when considering energy conservation in buildings. There is a limit in the current state of the window opening of a general combination of a window and a curtain, because heat from the outside can be suppressed only by opening and closing the window and opening and closing the curtain.

  If there is a rain door on the outdoor side of the window opening, closing it can contribute to energy saving and prevention of dew condensation on the indoor side, but it is not suitable for daytime use because the rain door does not allow light to pass through.

  When cooling and heating a room with only windows and curtains at the window opening, there is a temperature difference between the outside air temperature and the indoor temperature even if the curtains are closed, so when cooling, the air in the space near the window is warmed and the specific gravity becomes lighter and rises. After entering the room through the gap between the wall and the upper part of the curtain, the air cooled by the indoor cooling is drawn into the space near the window from the gap between the wall and the lower part of the curtain, it is warmed again and rises into the room. Conversely, during heating, the air in the space near the window is cooled by the outside air temperature and descends, and after entering the room through the gap between the wall and the lower part of the curtain, the air warmed by the indoor heating Then, it is drawn into the space near the window from the gap at the top of the curtain, it is cooled again, descends and enters the room, causing convection of air.The convection of the air causes a temperature difference between the room temperature and the outside air temperature. Since continues as long as that, the energy conservation if it is possible to stop the convection of the air.

  Furthermore, in winter, the outside air temperature decreases, so the absolute humidity decreases and drying becomes easier.Therefore, humidification often occurs indoors to prevent drying, and condensation forms inside the window opening at night when the outside air temperature decreases. This is a major problem.

  The present invention provides an openable and closable window cover that can be easily installed later on a window frame or an outer wall surface on the outdoor side of a window opening, and an installation method thereof. By closing this window cover, a substantially closed space can be created on the outdoor side of the window opening.

  By using a window cover that can be easily installed later on the window frame or outer wall surface outside the window opening, a generally closed space is created outside the window opening, and that space is used as a heat insulation layer for air. By doing so, it is possible to prevent dew condensation on the indoor side of the window opening and save energy during cooling and heating.

Front view of the window cover installed state of the first embodiment on the outdoor side of the window opening Horizontal sectional view (XX section) of the window cover installed state of the first embodiment on the outdoor side of the window opening. Vertical sectional view (Y-Y section) of the window cover installed state of the first embodiment on the outdoor side of the window opening. Image of the fixed form of the end of the window cover of the first embodiment on the outdoor side of the window opening The perspective view of the window cover of the second embodiment on the outdoor side of the window opening. Vertical sectional view at the time of the opening operation of the window cover installed state of the second embodiment on the outdoor side of the window opening Vertical sectional view at the time of closing operation of the window cover installed state of the second embodiment on the outdoor side of the window opening The front view which shows the installation state of the window cover of the third embodiment in which the existing outdoor wind-impermeable roll screen was modified. Front view showing a state in which the existing outdoor wind-impermeable roll screen has been partially lowered Side view and front view showing the installation state of the window cover of the fourth embodiment on the outdoor side of the window opening Side view of an outdoor roll screen used for the window cover of the fifth embodiment Side view when the roll screen on the outdoor side of the window cover of the fifth embodiment is wound up and only the roll clean on the indoor side is used. Side view when the roll screen on the indoor side of the window cover of the fifth embodiment is wound up and only the roll clean on the outdoor side is used

  An embodiment of a retrofitted outdoor window cover according to the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding portions are denoted by the same reference characters, and description thereof will not be repeated.

  FIG. 1 is a front view showing the installation state of the window cover of the first embodiment on the outdoor side attached later, and FIG. 2 is a horizontal cross-sectional view cut horizontally at a position indicated by a one-dot chain line XX in FIG. It is. Further, FIG. 3 is a vertical sectional view cut vertically at a position indicated by a one-dot chain line YY in FIG.

  The window cover of the first embodiment on the outdoor side fixes the left and right fixed shaft boxes 1 to the window frame 11 using the mounting screws 7, and hangs the cover sheet 4 around the left and right fixed shafts 2 while stretching the cover. It is characterized in that it is used by being closed up and down by the closed box 3.

  FIG. 1 shows a state in which the cover sheet 4 is removed from the upper closing box 3c and slightly lowered, but when using this window cover, the cover sheet 4 is raised to the upper closing cover 3c and used. If not, the cover sheet 4 may be lowered to the lower side. Alternatively, the cover sheet 4 may be fixed by the upper closed box 3c, removed from the lower closed box 3d, and raised upward.

  The cover sheet 4 may be wound on one side like a roll screen, or may be folded in a bellows shape and brought to one side.

  As shown in FIGS. 2 and 3, the left and right fixed boxes 1 and the upper and lower closed boxes 3 are kept in contact with the cover sheet 4 stretched around by lines, so that the cover sheet 4 is fixed on all sides. 1 and the closing box 3, it is connected to the window frame on all sides, and the space between the cover sheet 4 and the window can be almost shielded from the outside air, so that the shielded space becomes a shielded air layer. It can contribute to heat insulation.

  It is desirable that the air layer be closed on all sides, since the ingress and egress of air will be completely eliminated. However, assuming that the air enters and exits due to convection due to a temperature difference, the upper and lower closed boxes 3 It is desirable to have both, but if there is only one of the upper and lower sides, convection can be stopped if the right and left sides are closed, and the same energy saving effect can be expected as a shielded air layer.

  In FIG. 3, the closing box 3 is fixed so as to sandwich the cover sheet 4. However, if the contact with the cover sheet 4 is connected to both ends of the closing box 3, the air does not pass therethrough. However, if the cover sheet 4 is wavy due to the wind of the outside air, the contact may be separated. Therefore, it is better to fix the cover sheet 4 so that at least one of the upper and lower sides is sandwiched.

  FIG. 4 shows a method of connecting the cover sheet 4 to the fixed shaft 2 in the fixed box. The elastic rubber band-like retaining ring 5 is passed through the fixed shaft 2, and the cover sheet 4 is attached to the clip 6 attached to the retaining ring 5. This shows a fixing form in which the ends are sandwiched. If the combined length of the ring 5 and the clip 6 is too long, the end of the cover sheet 4 does not stay in the fixing box 1 and the fixing box 1 and the cover sheet Note that linear contact with 4 will be interrupted.

  By fixing the end of the cover sheet 4 with the clip 6, the cover sheet 4 can be cut to an arbitrary length and used, and is not affected by the width of the window opening.

  By providing a window cover on the outdoor side and forming a shielded air layer between the outside air and the window 12, the energy saving effect of the window opening in cooling and heating can be expected, and when the outside air temperature in winter falls, the outdoor side The temperature of the window 12 can be kept higher than when there is no window cover, and the effect of preventing dew condensation on the indoor side of the window opening can be expected.

  FIG. 5 is a perspective view of the window cover of the second embodiment on the outdoor side of the window opening, in which a sheet-like cover is incorporated behind a grid portion of a general horizontal window grid, and a fishing band 206 is provided. FIG. 7 is a perspective view of the window cover, which is fixed in a state where the window cover is opened, and looks like a horizontal window lattice when viewed from the front.

  FIG. 6 is a vertical sectional view orthogonal to the outer wall surface when the window cover of the second embodiment on the outdoor side of the window opening is opened without using the window cover. In this state, the lattice portion can be used as an eave, so that a daytime awning effect in summer can be expected.

  FIG. 7 is a vertical sectional view orthogonal to the outer wall surface when the window cover of the second embodiment on the outdoor side of the window opening is closed for use. From the state in which the window cover of FIG. 6 is opened, the window cover is rotated by approximately 90 degrees about the window cover fixing shaft 204, and the upper and lower ends of the cover sheet 202 of the window cover are successively closed so as to overlap with each other. Since the space between the cover sheet 202 of the window cover and the window can be substantially shielded from the outside air, the shielded space becomes a shielded air layer and can contribute to heat insulation.

Figure 8 is a case where a converted roll screen 301 impervious to wind the roll screen device impervious to existing wind for outdoor 9, making an air layer which is approximate enclosed outdoor side of the window opening, FIG. 13 is a front view of the window cover of the third embodiment in a state in which the roll screen 301 impermeable to air is lowered to a predetermined position, and a fastener 305 between the roll cover 301 and the closure cover 304 is fitted from below, and is closed to the top.

FIG. 9 shows an installation in which a wind-impermeable roll screen 301 of an existing outdoor wind-impermeable roll screen device is used for the purpose of shielding sunlight during cooling, and the air- impermeable roll screen 301 is partially lowered. It is a front view showing a state.

If the wind-impermeable roll screen 301 shown in FIG. 9 is merely lowered to a position where it can shield sunlight, there is a gap between both sides of the wind-impermeable roll screen 301 and the window frame 11, so that the window opening can be opened. The air between the outdoor side of the part and the wind-impermeable roll screen 301 flows across the air- impermeable roll screen 301 from side to side, or flows down from the side, so that it forms a sealed air layer. Does not work.

On the other hand, in the window cover of the third embodiment shown in FIG. 8, one side of each of the fasteners 305 is attached to both sides of the roll screen 301 which does not allow air to pass, and the other of the fasteners 305 is provided with a roll screen 301 which does not allow air to pass. attached to the closure cover 304 disposed on the left and right, after unloading the roll screen 301 that is impervious to air to a predetermined position of the window opening can be closed, pieces of both sides of each of the fastener 305 of the rolling screen 301 impervious to the wind After connecting one side and the other of the fasteners 305 corresponding to each attached to each of the closing covers 304 arranged on the left and right, respectively , the respective fasteners 305 are raised, and the wind between the left and right closing covers 304 is reduced. It is a front view showing the state where the roll screen 301 which does not pass was connected up and down entirely.

The window cover according to the third embodiment shown in FIG. 8 is characterized in that the left and right closing covers 304 and the roll screen 301 that is impermeable to air are connected and fixed by fasteners 305 to create a substantially sealed air layer. I do.

In Figure 8, since the lower the rolling screen 301 impervious to wind as viewed from the front to a predetermined position where downward completely hidden in the window opening, a shade 301 which is impervious to air by using a fastener 305 to the left and right lateral each of the fasteners 305 go up while connecting from bottom to top and a closure cover 304 in the later connected below, shows a state in which fully raised to above the lower side of the roll screen box 302, impervious to air This is an embodiment of the window cover that entirely covers the outdoor side of the window opening using the roll screen 301.

The air layer surrounded by the roll screen 301, the left and right closing covers 304, the roll screen box 302 , the window frame 11 and the window 12 that do not allow the air to pass therethrough completely eliminates the inflow and outflow of air when the entire surface is closed. Although it is desirable, it is assumed that the movement of the air in the air layer is caused by vertical convection moving in the opposite direction to the indoor side due to the temperature difference of the air inside and outside the room, excluding the influence of the wind blowing outside, upwardly, closing the air passage in the upward direction by a roll screen box 302, the flow in the lateral direction together with what is covered by the closure cover 304 and the fastener 305, a rolling screen 301 impervious to wind three-way close and is able, and be completely closed between the underscores 303 and Madokamachi 11 below the roll screen 301 impervious to wind around the Even without convection of large vertically due to the temperature difference between the air generally can be stopped, work energy saving effect can be expected as an air layer which is approximate sealed.

In addition, when the existing outdoor roll screen device is a roll screen that allows air to pass through, only the existing roll screen that allows air to pass is replaced with the roll screen 301 that does not allow air to pass, and then the above-described operation is performed. In this way, a substantially closed air layer can be similarly created on the outdoor side of the window opening.

  FIG. 10 shows a state in which a velcro tape 401c is stuck on the indoor side surface of an air-impermeable roll screen 301 of an existing outdoor air-impermeable roll screen device, and a velcro tape 401d is stuck to the window frame 11. It is a side view and a front view showing the state where the window cover of the shown fourth embodiment was partially lowered.

  In FIG. 10, the roll screen 301 that does not allow air to flow is in a state where it is not completely lowered to the lower side. A certain magic tape 401d is not in close contact, but after lowering the wind screen roll screen 301 down, the magic tape 401c and the magic tape 401d are brought into close contact with each other so that the wind screen roll screen 301 and the left and right The gap between the window frames 11 can be closed, and the three sides on the outdoor side of the window opening can be closed together with the upper roll screen box 302. Can be found on the outdoor side of

  Instead of the magic tape 401 shown in FIG. 10 described above, a thin steel plate and a thin magnet sheet are adhered to the indoor surface of the roll screen 301 and the window frame 11, respectively, which do not allow air to flow, so that the steel plate and the magnet sheet When magnetically adhered to each other, it is possible to close the gap between the roll curtain 301 and the left and right window frames 11, which do not allow air to flow, and together with the upper roll screen box 302, the outdoor side of the window opening can be closed as described above. Since the three sides can be closed, a substantially sealed air layer can be created on the outdoor side of the window opening. (Not shown)

  FIG. 11 is a side view of an outdoor roll curtain in the form of a double-layered roll curtain according to the fifth embodiment. Is a roll curtain 501 for shielding sunlight, which has a structure that blocks sunlight from oblique directions. On the other hand, the roll curtain 301 that does not allow air to pass through the room is a third embodiment or a fourth embodiment. This is a roll curtain having the same specifications as the roll curtain 301 that does not allow the air to pass through.

  FIG. 12 shows an outdoor wind-permeable roll curtain 501 shown in FIG. FIG. 4 is a side view of the case where only the sunshine is used. The roll curtain 301 that allows sunlight to pass through but does not allow the wind to pass through the outside of the window opening while taking in the heat of the sunlight into the room in winter or the like. By closing the gap between the roll curtain 301 and the left and right window frames 11 and creating a substantially closed air layer with three sides closed together with the roll curtain box 302, the warm sunlight can be taken in and the outdoor side of the window opening. The air layer can be expected to save energy and prevent condensation.

  FIG. 13 shows a roll curtain 501 that winds up the indoor air-impermeable roll curtain 301 shown in FIG. It is a side view in the case of using only, without using air conditioning that uses energy in the room in the early summer etc., shows the embodiment in which the sunlight inserted into the room is blocked, the outside air is taken in, and the outside air is cooled. In the case of using air-conditioning indoors at the time of high summer, as shown in FIG. 11, two roll curtains are used at the same time, and the solar radiation is shielded by a roll curtain 501 through which the wind on the outdoor side passes. As a result, the roll curtain 301 that reduces the heat load caused by the solar radiation and blocks the wind on the indoor side closes the gap between the roll curtain 301 on the indoor side and the left and right window frames 11. Roll curtain box 302 Te In addition to this, an example in which a substantially closed air layer closed on three sides is created on the outdoor side of the window opening is shown.In addition to suppressing solar radiation, the window opening is substantially insulated from the outside, and further cooling is provided. Contribute to energy saving.

  A window cover that covers the outdoor side of the window opening as described above can also be provided with a security function against intrusion from the outside by devising the window cover, and further fly by a strong wind such as a typhoon. A function to protect the window glass from flying objects can also be expected. (Not shown)

  Although the embodiments and examples of the present invention have been described above, the embodiments and examples disclosed herein are illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the embodiments and examples, and is intended to include any combinations within the scope and meaning equivalent to the terms of the claims.

1 Fixed axis box 1a Fixed axis box (left)
1b Fixed axis box (right)
2 Fixed shaft 2a Fixed shaft (left)
2b Fixed shaft (right)
3 Closed box 3c Closed box (top)
3d closed box (bottom)
4 Cover sheet 5 Retaining ring 6 Clip 7 Mounting screw 10 Wall surface 11 Window frame 12 Window 12a Window (left)
12b window (right)
13 Screen door 201c Closed box of window cover of the second embodiment (top)
201d Closed box of the window cover of the second embodiment (bottom)
202 Cover sheet of the window cover of the second embodiment 203 Passive portion of the window cover of the second embodiment 203a Passive portion of the window cover of the second embodiment (left)
203b Passive part of the window cover of the second embodiment (right)
204 Passive shaft of window cover of second embodiment 205 Fixed shaft of window cover of second embodiment 206 Hanging band of window cover of second embodiment 207 Fixing screw of window cover of second embodiment 301 Wind-impermeable roll Screen 302 Roll screen box 303 Bottom bar 304 Closing cover 304a Closing cover (left)
304b closure cover (right)
305 fastener 305a fastener (left)
305b fastener (right)
306 Closing cover fixing bar 306a Closing cover fixing bar (left)
306b Closed cover fixing bar (right)
307 Fixed bar mounting screw
401 Velcro
401c magic tape 1
401d magic tape 2
501 Roll screen to let wind through
502 Roll Curtain Winding Belt
503 Winding belt hook for outdoor use
504 Indoor wrap strap hook Note: The following are registered trademarks: Magic tape 2. Roll screen 3. fastener

Claims (3)

  A window cover to be attached to a window frame or an outer wall surface so as to cover the window opening from the outdoor side in order to contribute to energy saving of the window opening of a building to be cooled and heated and prevention of dew condensation on the indoor side of the window opening, and the window cover. A window cover that contributes to energy saving and prevention of dew condensation on the indoor side of the window opening by closing the left, right, upper and lower three sides of the four sides of the gap between the window and the window frame A window cover for covering the outdoor side of the window opening made in conjunction with roll screens impervious to wind outdoor, of the gap between the rolling screen impervious to wind for Madokamachi and outdoor, left, right, and top of the The window cover according to claim 1, wherein the three sides can be closed. 3. The window cover according to claim 1 or claim 2, wherein the outdoor side of the window cover of claim 1 or 2 covers an outdoor side of a window opening in which a screen or a roll screen for passing wind is disposed for shielding sunlight.