JPH0673609U - Ceiling installed heater - Google Patents

Abstract

(57) [Summary] [Purpose] In addition to eliminating the freeze of the heater installed in the ceiling,
The inspection can be done easily and the temperature can be raised in a wide range of the ceiling. [Structure] An inspection lid 5 exposed to a ceiling surface is formed on a lower surface of a box-shaped main body 1, and an opening is formed on one side surface facing the main body 1. A blower 11 that sucks air in the ceiling from one opening and exhausts it from the other opening is provided in the main body 1.
Electric heater 1 that radiates heat to the air in the ceiling that passes through the inside of the main body 1
7 is provided in the main body 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heater installed in a ceiling that raises the temperature inside the ceiling of a building in a cold region and prevents floor cooling on the upper floor.

[0002]

[Prior art]

 In a building in a cold region, on a floor that directly contacts the outside air, such as the upper floors of the piloti portion, heat may be dissipated to the outside air, causing the foot space to cool, which may significantly deteriorate the living environment. Also, if there are water supply pipes, air conditioning water pipes, etc. in the ceiling of the piloti portion, they may freeze during severe cold season and damage the pipes. In the past, heat insulating materials have been generally used in such a piloti ceiling or under the floor of the heating room (inside the ceiling of the lower floor) to prevent a temperature drop due to heat radiation. It is wrapped and protected from freezing. Other methods to prevent the temperature from dropping include installing a concealment type fan coil that uses hot water in the ceiling and installing an electric panel heater in the ceiling. The chill was prevented.

[0003]

[Problems to be solved by the device]

 However, if a concealed fan coil or electric panel heater is installed inside the ceiling, these devices are hidden inside the ceiling, which makes maintenance difficult and requires some effective height inside the ceiling. In addition, concealed fan coils and floor heating that use hot water have the drawbacks that the piping may freeze when heating is stopped and the equipment becomes bulky. Further, in the electric panel heater, since the heat is generated by natural convection, there is a drawback that the effect is significantly reduced when the ceiling area is increased.

The present invention has been made in view of the above circumstances, and uses an electric heater as a heat source that does not cause freezing, allows easy inspection, and can raise the temperature even in a large ceiling area. The purpose is to provide a heater installed in the ceiling to prevent the deterioration of the living environment in cold regions.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the structure of the heater installed in the ceiling according to the present invention is a heater installed in the ceiling in which the main body is installed in the ceiling and the air in the ceiling is heated to prevent floor cooling of the upper floor. Therefore, an inspection lid that is exposed to the ceiling is formed on the bottom surface of the box-shaped main body, and openings are formed on the opposite side surfaces of the main body, and the air inside the ceiling is sucked in from this one opening and the other opening. It is characterized in that a blower for exhausting air is provided inside the main body, and an electric heater that radiates heat to the air inside the well passing through the main body is provided inside the main body.

[0006]

[Action]

 The air in the ceiling is forcibly convected by the blower, and it is possible to raise the temperature of the air in the ceiling over a wide range, so there is no need to secure a high ceiling height compared to the natural convection method. Electricity is used as the heat source, water piping is not used, and there is no risk of freezing. An inspection lid is integrally formed on the main body, and at the same time as mounting the main body, maintainability from below the ceiling is secured.

[0007]

【Example】

 Hereinafter, a preferred embodiment of a heater installed in a ceiling according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of a heater installed in a ceiling according to the present invention, FIG. 2 is a plan view of the heater installed in a ceiling from below, and FIG. 3 is a front view of the heater installed in a ceiling. A bracket 3 is provided on the top of the box-shaped main body 1, and the main body 1 is attached to the body side via the bracket 3. An openable and closable lid 5 is attached to the bottom of the main body 1, and when the main body 1 is attached to the body side, the inspection lid 5 is exposed on the ceiling surface. That is, the main body 1 is formed integrally with the inspection port. A power supply lamp 7 is attached to the inspection lid 5 (see FIG. 2), and the power supply lamp 7 is adapted to display the input state of the power supply on the ceiling surface. An opening is formed on one side surface (hereinafter referred to as a front surface and a rear surface) of the main body 1 facing each other, and a wire net 9 is attached to the opening portion (see FIG. 3).

A blower 11 is provided on the front side inside the main body 1, and the blower 11 sucks the air in the ceiling from the front side and exhausts it from the rear side. An air filter 13 is detachably attached to the front opening, and the air filter 13 prevents dust and the like in the ceiling from entering the main body 1. An electric component section 15 is provided inside the main body 1 near the blower 11, and the electric component section 15 controls the blower 11 and an electric heater described later. An electric heater 17 is provided on the rear surface side inside the main body 1, and air in the ceiling taken into the main body 1 by the blower 11 passes through the electric heater 17. That is, the air in the ceiling is sucked from the front surface of the main body 1 by the drive of the blower 11, is heated by the electric heater 17, and is blown into the ceiling from the rear surface of the main body 1 again.

FIG. 4 is a front view of the electric heater, and FIG. 5 is a side view of FIG. The electric heater 17 has horizontal sheathed heaters 19 with fins attached in a plurality of stages in the vertical direction, and the overall size is made compact (thinner) by increasing the heat radiation area. Further, an overheat prevention device 21 is attached to the electric heater 17, and the overheat prevention device 21 shuts off the protection circuit at a predetermined temperature or higher. As described above, all of the air filter 13, the electrical component 15, the blower 11, and the electric heater 17 can be easily inspected by opening the inspection lid 5 after the main body 1 is attached to the body side. It is like this.

FIG. 6 is a circuit diagram of a heater installed in the ceiling. The blower 11 and the electric heater 17 are operated and controlled in the electric component section 15 by an electric circuit shown in FIG. In the figure, BK is a safety breaker, H is an electric heater 17, SW is a switch, TH1 is a thermostat (for inlet), TH2 is an overheat prevention device 21, TF is a thermal fuse, PL is a power lamp 7, R1 and R2 are A relay, Mg is an electromagnetic switch, FAN is a blower 11, and T is a delay timer. When the switch SW is closed by building the electric circuit in this way, the power lamp 7 is turned on, the electromagnetic switch Mg is excited by the a contact of the relay R1, the electric heater 17 is energized, and the blower 11 is turned on. Driven. At this time, when it is detected that the overheat protection device 21 is at a predetermined temperature (85 ° C.) or higher, the electric current to the electric heater 17 is cut off to prevent excessive heating. The intake air temperature of the heater can be variably set from 0 ° C to 40 ° C by the thermostat TH1, and the temperature is raised by the electric heater 17 until the set temperature is reached. When the set temperature is reached, the electric power to the electric heater 17 is cut off. When the switch SW is opened, the power lamp 7 is turned off and the electricity to the electric heater 17 is cut off. At this time, the self-holding circuit composed of the relay R2 and the delay timer T operates to keep the blower 11 in the drive state for the set time of the delay timer T (3 minutes or more), so that the electric heater 17 is prevented from being burnt. It has become.

Since the heater installed in the ceiling configured as described above does not use a heat source using water as a medium, the fear of freezing of the pipe is eliminated and the durability can be improved. Further, since the sheathed heater with fins 19 is used as the electric heater 17, the main body 1 can be made thin and can be installed even if the height inside the ceiling cannot be sufficiently secured. Furthermore, since the inspection lid 5 is integrally provided on the main body 1, maintenance from below the ceiling can be made extremely easy. Further, since the heater installed in the ceiling can forcibly convect the air in the ceiling by the blower 11, it is not necessary to secure a high height in the ceiling, and even if the ceiling area is large, it is possible to sufficiently raise the temperature in the ceiling. You can

[0012]

[Effect of device]

 As described in detail above, the heater installed in the ceiling according to the present invention is heated because the blower for sucking and exhausting the air in the ceiling and the electric heater are provided in the main body and the inspection lid is formed on the lower surface of the main body. The air in the ceiling is forced to convection, and it is possible to raise the temperature of the air in the ceiling over a wide range with a lower ceiling height than the natural convection method. At the same time, maintenance from below the ceiling can be secured. As a result, it is possible to very reasonably prevent the deterioration of the living environment in cold regions.

[Brief description of drawings]

FIG. 1 is a side view of a heater installed in a ceiling according to the present invention.

FIG. 2 is a plan view of a heater installed in the ceiling as viewed from below.

FIG. 3 is a front view of a heater installed in a ceiling.

FIG. 4 is a front view of an electric heater.

FIG. 5 is a side view of FIG.

FIG. 6 is a circuit diagram of a heater installed in a ceiling.

[Explanation of symbols]

 1 Main body 5 Inspection lid 11 Blower 17 Electric heater

Claims (1)

[Scope of utility model registration request] 1. A heater installed in a ceiling in which a main body is provided in a ceiling and air in the ceiling is heated to prevent floor cooling of an upper floor, wherein a box-shaped lower surface of the main body is provided on a ceiling surface. A blower is provided in the main body, which forms exposed inspection lids, has openings formed on opposite side surfaces of the main body, and sucks air in the ceiling from one opening to exhaust the air from the other opening. An electric heater installed in the ceiling, wherein an electric heater that radiates heat to the air in the ceiling that passes through is provided in the main body.