JPH0144978Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a tower kotatsu used as a warming device.

[Technical background of the invention and its problems]

Yagura kotatsu consists of a heater unit attached to the inner roof of a Yagura kotatsu. The radiant heat of the heater unit is sensed by a temperature sensor, and the power supply to the heater unit is controlled according to the sensing, thereby keeping the temperature inside the tower constant.

By the way, there are various sizes of towers depending on demand, and if the same type of heater unit could be used in common for each tower,
This is a big advantage in terms of cost. However, simply installing a temperature sensor in each tower to control the heater unit causes the following problems. That is, in a large-sized tower, it takes a relatively long time for the entire inside of the tower to reach a predetermined temperature, whereas in a small-sized tower, it takes only a short time. However, since the temperature sensor exclusively detects the radiant heat emitted from the heater unit and controls the heater unit regardless of the size of the tower, the overall temperature inside the tower is low when the tower is large, and low when it is small. There is a tendency for high temperatures to occur, making it difficult to share heater units.

[Purpose of invention]

The present invention was developed with this in mind, and its purpose is to maintain the same constant temperature inside the towers even if the sizes of the towers are different, so that the heater unit can be used in common. The aim is to enable the realization of

[Summary of the idea]

In order to achieve these objectives, the present invention provides a heater unit in the inner part of the tower, and also installs a temperature sensor that controls the energization of the heater unit in accordance with temperature detection in the direction away from the heater unit. The temperature sensor is movably supported, and is provided with an operation mechanism for moving and operating the temperature sensor.

[Example of idea]

An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a wooden tower, which has legs 3 detachably attached to the four corners of a ceiling body 2, and the ceiling body 2 is supported horizontally by these legs 3. The ceiling body 2 is constructed by assembling a plurality of inner bars 5 in a grid shape inside a rectangular outer frame 4, and the space in the center surrounded by each inner bar 5 is defined as a storage section 6. , the upper surface of this storage section 6 is closed by a top plate 7. The height dimensions of the outer frame 4 and each inner frame 5 are large, for example 55 mm, in order to make the ceiling body 2 look like luxurious furniture.
It is formed to approximately the same size. Note that a reinforcing beam 8 is installed on the lower surface of the top plate 7.

A heater unit 10 having a flat shape is horizontally stored and held in the housing part 6 via a support fitting 11. This heater unit 10 is constructed by attaching a planar heater 13 to the inner bottom surface of a dish-shaped heat dissipation case 12. Further, a guard 14 is attached to the lower surface of the heater unit 10 via the support fitting 11 so as to be spaced apart from and opposite to the lower surface.

A support plate 20 is fixed horizontally to the side surface of the support fitting 11, and a temperature sensor 16 is provided on the upper surface of the support plate 20 so as to face the heater unit 10 and to be movable in the direction of separation. That is, the temperature sensor 16 is slidably mounted on the upper surface of the support plate 20, and a guide hole 21 is formed in the support plate 20 along its longitudinal direction. A pair of tongue pieces 22, 22 protruding from the lower surface of the temperature sensor 16 pass through the guide hole 21 and protrude to the lower surface side thereof. The support plate 20 has support pieces 2 protruding downward at the middle and tip ends thereof.
3 and 23 are provided, and an operating shaft 24 is rotatably installed between these support pieces 23 and 23. A screw 25 is formed over a relatively long section in the middle of the operating shaft 24, and a portion of this screw 25 passes through the tongue pieces 22, 22 and is threadedly engaged with the tongue pieces 22, 22. . Therefore, by rotating the operating shaft 24 using a tool such as a screwdriver, the temperature sensor 16 can be moved along the longitudinal direction of the support plate 20 and moved closer to or farther away from the heater unit 10. It is.

A part of the inner crosspiece 5 that constitutes the side surface of the storage section 6 has a
A square-shaped installation port 1 faces the heater unit 10.
5 is formed, and the support plate 2 is placed inside this installation opening 15.
0 is inserted together with the temperature sensor 16. A cover 17 is provided on the side of the installation opening 15 facing the outer frame 4, and a plurality of slits 18 are bored in the cover 17 to allow air to circulate. Further, a plug receiving portion 19 is provided on the inner crosspiece 5 adjacent to the installation port 15, and this plug receiving portion 19
is electrically connected to the planar heater 13 of the heater unit 10 via a temperature sensor 16.

In the tower kotatsu constructed in this manner, a power plug is inserted into the plug receiving portion 19, and electricity is supplied to the planar heater 13 of the heater unit 10 through the temperature sensor 16. This energization causes the planar heater 13 to generate heat, and radiant heat is radiated into the tower 1 from the bottom surface of the heater unit 10, thereby heating the inside of the tower 1. In addition, a small amount of radiant heat is also emitted from the side of the heater unit 10, which is transmitted to the temperature sensor 1.
6, and when the sensed temperature reaches a certain temperature, the contacts in the temperature sensor 16 are opened and the power to the heater unit 10 is cut off. Along with this, the radiation of the heater unit 10 gradually decreases, which is detected by the temperature sensor 16, and the contact closes.
Heater unit 10 is energized again.

By repeating this process, the temperature inside the tower 1 is kept almost constant. If the temperature inside the tower 1 suddenly drops due to cold air entering the tower 1, etc., the air inside the tower 1 will flow into the area around the temperature sensor 16 through the slits 18 of the cover 17. The temperature sensor 16 detects a drop in the temperature inside the tower 1 based on the incoming air, and the heater unit 10 is continuously energized, so that the inside of the tower 1 quickly recovers to a predetermined temperature state. .

By the way, when the size of the tower 1, that is, the internal volume is large, the operating shaft 24 is rotated to move the temperature sensor 16 away from the heater unit 10 to increase the separation distance, and when the tower 1 is small, the distance is increased. The temperature sensor 16 is brought closer to the heater unit 10 to reduce the separation distance. When the tower 1 is large, the rate of temperature rise throughout the interior thereof is slow as described above, and when the tower 1 is small, the opposite is true.
When the separation distance l is large, the temperature sensor 16 is less sensitive to the radiation of the heater unit 10, and when the separation distance l is small, the opposite is true.
Therefore, due to this relationship, when the tower 1 is large, the rate of temperature rise is slow, but the time for energizing the heater unit 10 is extended, and when the tower 1 is small, the rate of temperature rise is rapid, but the heater unit The energization time for the tower 10 is shortened, and therefore the temperature inside the tower 1 is maintained at a predetermined constant temperature in both cases, so the same type of heater unit 10 can be used in both cases. .

[Effect of idea]

As explained above, according to the present invention, even if the sizes of the towers are different, the internal temperature can be maintained at a predetermined constant temperature, so that the same heater unit can be used in common for towers of different sizes. This has the effect of reducing costs.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view showing one embodiment of the present invention, FIG. 2 is a partial sectional view of the same, and FIG. 3 is a plan view of the mounting portion of the temperature sensor. 1... Tower, 10... Heater unit, 16
...Temperature sensor.

Claims (1)

[Scope of utility model registration request] A heater unit is provided in the inner sky of the tower, and a temperature sensor that controls the energization of the heater unit according to temperature detection is supported movably in the direction away from the heater unit. A yagura kotatsu characterized by being equipped with an operating mechanism for moving the kotatsu.