JP3933265B2 - Window heater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a window heater, and more particularly to a window heater that prevents condensation and cooling of a window in winter.
[0002]
[Prior art]
Windows provided in buildings have an important meaning for lighting and ventilating rooms, and particularly in recent buildings, there is a tendency to increase in size due to the appearance of tempered glass.
[0003]
When the interior of a building is heated in the cold season, condensation occurs inside the window glass due to the difference between the indoor temperature and the outside temperature. If this condensation is severe, it will drip down to the window frame through the window glass, wet the floor, and in the case of wood it will cause the window frame to rot.
[0004]
Various measures have been taken as measures against this. For example, in Japanese Patent Application Laid-Open No. 63-289192, a warm air generator is provided in a blind suspended from the front surface of an indoor side window, and the warm air heated by the heating section is ventilated along the window, thereby preventing condensation. A technique for preventing the occurrence is disclosed.
[0005]
Japanese Patent Laid-Open No. 1-94013 is intended for bus vehicles, and is provided with a heater in an upper air duct or a lower air duct provided on the lower side of the window glass, where the air is heated and the upper or lower part is heated. An air conditioner that blows out from a duct and sucks into a lower or upper duct is disclosed.
[0006]
Further, JP-A-1-275888 proposes a sheet-like heater for a window in which a flexible heater is attached to a sheet of almost the entire size of a window, and a sheet winding device and a heater temperature control device are provided. ing. With such a structure, when the heater is energized with the sheet pulled down, an upward airflow is generated along the sheet, and the cold air generated by being cooled by the glass window cooled by the outside air descends along the glass surface. Collide with the bottom of the window frame. Here, the cold air tends to flow toward the indoor side along the lower part of the window frame, but is dammed by the sheet, and is engulfed by the rising airflow to generate a circulating airflow between the window and the sheet, causing condensation and the window surface. Can be effectively prevented.
[0007]
Similar techniques are also disclosed in JP-A-1-275890, JP-A-59-29632, and JP-A-2-183735.
[0008]
[Problems to be solved by the invention]
In any of the above technologies, condensation or cooling of the window surface can be prevented, but it is necessary to modify the building itself or require a complicated mechanism. Have difficulty.
[0009]
The problem to be solved in the present invention is to provide a window heater which can be used without any special modification to an existing window and has an excellent dew condensation prevention effect.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is a linear window heater that is detachably installed on the indoor side of a window, and has a protrusion provided in the upper part of a hollow cover having thermal conductivity. characterized in that the heating element is mounted on.
[0011]
In the window heater according to the present invention, the hot air from the window heater rises along the inner side surface of the window by being placed on the indoor side of the window, particularly on the window frame, and thus, the building is remodeled. Without applying, dew condensation and cooling of the inner surface of the window can be prevented with simple means.
[0012]
Here, as the cover having thermal conductivity, those made of various metals such as aluminum, copper, and brass can be used, but aluminum is desirable particularly in terms of light weight and workability. Also, commercially available heaters with various structures can be used as the heating element mounted in the cover.
[0013]
The cross-sectional shape of the cover to be used is not particularly limited, but a saddle type that can be stably installed on the window frame and has a straight bottom surface and an arc-shaped top surface is preferable so as not to get in the way. Moreover, by using a bowl shape, the area of the upper surface necessary for heat dissipation can be increased, and heat can be efficiently supplied to the window surface.
[0014]
In general, the size of the window varies depending on the building, and it is difficult to manufacture a window heater that can be applied to all such a wide variety of windows. By enabling the extension window heater to be connected via the tool, it is possible to cope with a small number of parts. In this case, it is desirable to use one window heater having a length of 700 to 800 mm and connecting an appropriate number thereof.
[0015]
As this connection tool, a plug in which terminals for insertion into the window heater are protruded at both ends can be used. By using such a connection tool, it is possible to connect simply by inserting window heaters at both ends of the connection tool.
[0016]
Also, in order to prevent the window heater from being dropped or displaced when it is installed on a narrow window frame, a non-slip layer consisting of a hook for locking, uneven processing, and cloth tape is formed. Is desirable.
[0017]
Further, the cover and the heating element can be formed in a bellows shape so that they can be expanded and contracted. In this case, the material of the cover can be a spiral steel wire with aluminum foil attached to an air conditioning duct or the like, and the heating element can be a film heater. . Thereby, it becomes possible to extend and use it according to the size of the window.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the window heater of the present invention will be described in detail based on embodiments shown in the drawings. FIG. 1 is a perspective view of a window heater according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the window heater shown in FIG.
[0019]
In the window heater 10 of the present embodiment, a heater wire 14 as a heating element is mounted inside an aluminum cover 12 having a length of 750 mm, and plastic caps 16a and 16b are provided on both sides of the cover 12. It has been. The cap 16a is embedded with a light emitting diode (not shown) indicating on / off of the device, and one cap 16b is detachably mounted for extension as will be described later. A power cord 20 is provided with an outlet 20a on the tip side and a magnet type plug on the heater side.
[0020]
As clearly shown in the cross-sectional view of FIG. 2, the cover 12 is a hollow member having a bowl-shaped cross section. A pair of protrusions 12a are formed on the upper part, and a heat-resistant insulating tube is interposed in the protrusion 12a. The heater wire 14 is attached. Therefore, when the heater wire 14 is energized, the heater wire 14 generates heat, this heat is transmitted to the cover 12 by heat conduction, and hot air rises from the surface of the cover 12. At that time, since the inside of the cover 12 is hollow, heat conduction downward is hindered, and heat is efficiently conducted upward.
[0021]
The heater wire 14 is made of a metal rod and wired as shown in FIG. 3, and a thermostat 17 and a fuse 18 are provided on the base end side.
[0022]
22 is an adhesive tape as a non-slip layer affixed to the bottom surface of the cover 12, and even if it is placed on a window frame made of aluminum or the like by using a cloth made of unevenness on the surface, it may fall or slip. Is unlikely to occur. Reference numeral 24 denotes a hook for locking the aluminum window frame. The antiskid layer 22 and the hook 24 can be eliminated depending on the situation.
[0023]
Next, a method for using the window heater will be described. FIG. 4A is a front view showing a use state of the window heater shown in FIG. 1, and FIG. 4B is a side view of the same. As shown in the figure, the window heater 10 of the present embodiment is used by placing it on the frame of the window W and locking the hook 24 to the window frame. As a result, the hot air from the window heater 10 rises along the inner surface of the window W, thereby preventing condensation and cooling of the inner surface of the window with simple means without any modification to the building. it can.
[0024]
Here, since the cover 12 has a saddle shape in cross section, it can be stably installed in a narrow window frame space. Thereby, the area of the upper surface necessary for heat dissipation can be increased, and heat can be efficiently supplied to the window surface. Further, by providing the anti-slip layer 22 on the bottom surface of the cover 12 and having the hooks 24 for locking, the cover 12 can be stably used while being detachable from the window frame. Further, since the power cord 20 is a magnet type plug, when it is hooked, it is detached from the plug portion, and there is little risk that the window heater 10 itself falls.
[0025]
Next, a method for extending the window heater 10 will be described. Here, FIG. 5 is a perspective view of the connection plug, FIG. 6 is an exploded perspective view showing an end portion of the window heater, FIG. 7 is a perspective view showing a use state of the connection plug, and FIG. 8 is a detailed view of the connection portion.
[0026]
Referring to FIG. 5, the connection plug 30 is formed in a body 30 a having substantially the same cross-sectional shape as the cover 12, a pair of pins 30 b to be inserted into the recessed portion at the end of the window heater 10, and in the direction opposite to the pins 30 b, It consists of a pin 30c to be inserted into a recess at the end of the extension heater 40 which will be described later.
[0027]
The cap 16b of the window heater 10 is detachable as shown in the exploded perspective view of FIG. 6. With the cap 16b removed, the pin 30b of the connection plug 30 is inserted into the pin hole 12c of the window heater 10, The extension heater 40 is inserted on the opposite side. Accordingly, as shown in FIGS. 7 and 8, the window heater 10 and the extension heater 40 can be integrated electrically and structurally to have a length corresponding to the size of the window.
[0028]
As described above, the window heater according to the present embodiment allows the extension window heater 40 to be connected to the end of the window heater 10 via the connection tool 30, thereby reducing the size of the window with a small number of parts. Can also be supported.
[0029]
In addition to the above embodiment, it can be incorporated into a blind, mounted on a window frame, or attached to a window glass by a suction cup.
[0030]
【The invention's effect】
The following effects can be achieved by the present invention.
[0031]
(1) A linear window heater in which a heating element is mounted in a projection provided on the upper part of a hollow cover having thermal conductivity, and without any modification to the building, can be applied to the inner surface of the window by simple means. Condensation and cooling can be prevented.
[0032]
(2) By making the cross-sectional shape of the cover into a bowl shape, the cover can be stably installed on a window frame or the like while maintaining a high heat dissipation effect.
[0033]
(3) By making the extension window heater connectable to the end of the window heater via a connector, the invention can be applied to a wide variety of windows.
[0034]
(4) By providing a locking tool and / or a non-slip layer on the lower surface of the cover, it is possible to prevent dropping and displacement when installed on the window frame.
[0035]
(5) By making the cover and the heating element extendable, it is possible to deal with windows having different widths with one standard.
[Brief description of the drawings]
FIG. 1 is a perspective view of a window heater according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of the window heater shown in FIG.
FIG. 3 is an explanatory diagram showing a wiring state of heater wires.
4A is a front view showing a usage state of the window heater shown in FIG. 1, and FIG. 4B is a side view.
FIG. 5 is a perspective view of a connection plug.
FIG. 6 is an exploded perspective view showing an end portion of the window heater.
FIG. 7 is a perspective view showing a usage state of a connection plug.
FIG. 8 is a detailed view of a connecting portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Window heater 12 Cover 14 Heater wires 16a and 16b Cap 17 Thermostat 18 Thermal fuse 20 Power cord 22 Non-slip layer 24 Hook 30 Connection plug 40 Extension heater

Claims (6)

A linear window heater that is detachably installed on the indoor side of a window and is characterized in that a heating element is mounted in a protruding portion provided in the upper part of a hollow cover having thermal conductivity. Window heater. The window heater according to claim 1, wherein a cross-sectional shape of the cover is a bowl shape. The window heater according to claim 2, wherein an extension window heater can be connected to an end of the window heater via a connector. The window heater according to claim 3, wherein the connector is a plug having terminals protruding at both ends. The window heater according to claim 1, further comprising a latch and / or a non-slip layer on a lower surface of the cover. The window heater according to claim 1, wherein the cover and the heating element are extendable.

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