JPH081412Y2 - Output control mechanism of heat storage heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to an output adjusting mechanism for a heat storage heater using a damper mechanism.

(Prior Art) A heat storage heater has a configuration shown in FIG. That is, reference numeral 1 denotes a housing, which houses a heat storage body 3 having a heating element 2 therein, and surrounds the heat storage body 3 with a heat insulating material 4, and the heat insulating material 4 and the heat storage material 3 An air passage 5 is formed between the and.

A blower 6 is housed behind the lower part of the casing 1, and the blower 6 sucks air from a suction port 7 provided in the lower front surface of the casing 1 and sends the air to an air inlet 5a of the ventilation passage 5. I am trying.

An air outlet 8 is provided on the lower front surface of the casing 1 above the inlet 7, and the inlet 7 and the outlet 8 are partitioned by a heat shield plate 9 in the casing 1. . A damper mechanism 10 is mounted on the heat shield plate 9.

As shown in FIG. 5, the damper mechanism 10 is provided below the air outlet 5b of the ventilation passage 5 and is provided with a bimetal mechanism 11. The bimetal mechanism 11 is connected to one end of a connecting rod 12 and the connection is made. A movable damper 13 is connected to the other end of the rod 12.

When the temperature of the air sent out from the air outlet 5b is sufficiently low, the damper mechanism 10 is deformed little and the movable damper 13 is moved to a position where the air inlet 5a is opened to the maximum as shown by the solid line in the figure. Further, when the temperature of the air sent out from the air outlet 5b is sufficiently high, the deformation of the bimetal mechanism 11 becomes large and the movable damper 13
Is moved to a position where the air inlet 5a is maximally closed as shown by the dotted line in the figure.

The heating element 2 is adapted to generate heat by inexpensive power such as nighttime power or snow melting power used in cold regions to cause the heat storage element 3 to store heat energy.

In this device, the temperature of the air sent from the air outlet 5b of the ventilation passage 5 is considerably high when a sufficient amount of heat energy is stored in the heat storage body 3, so that the bimetal mechanism 11 is largely deformed and the air inlet of the ventilation passage 5 is deformed. Block 5a to the maximum.
In this state, the amount of air sent to the air inlet 5a of the ventilation passage 5 by the operation of the blower 6 is small, and thus the ventilation passage 5
The amount of high-temperature air sent out from the air outlet 5b is small. Compared with this, the amount of low-temperature air directly supplied by the blower 6 via the installation portion of the damper mechanism 10 becomes relatively large.

In this way, the high temperature air and the low temperature air are mixed inside the air outlet 8 and the air of an appropriate temperature is blown out to the outside from the air outlet 8.

Then, as the heat storage energy of the heat storage body 3 decreases, the temperature around the bimetal mechanism 11 gradually decreases, and the deformation of the bimetal mechanism 11 gradually decreases and the movable damper 13
Rotates in a direction to open the air inlet 5a. In this way, the amount of high-temperature air sent out from the air outlet 5b of the ventilation passage 5 is relatively increased. The temperature of the hot air in this case decreases as the heat storage energy of the heat storage body 3 decreases.

On the contrary, the amount of low-temperature air directly supplied by the blower 6 via the installation portion of the damper mechanism 10 becomes relatively small.

(Problems to be solved by the invention) However, in this conventional device, when the thermal energy of the heat storage body 3 is reduced and the deformation of the bimetal mechanism 11 is reduced,
Since the movable damper 13 rotates in proportion to this, when the heat storage energy of the heat storage body 3 is relatively large, the amount of energy released becomes too large and hot air of a considerably high temperature is blown out, resulting in an operating time. There was a problem that the temperature difference of the hot air as a whole became large.

Therefore, the present invention can minimize the amount of energy released in the state where the heat storage energy of the heat storage body is relatively large, and thus can reduce the temperature difference of the warm air during the entire operation time, and the heat storage heating has a simple structure. It is intended to provide a power output adjusting mechanism of a container.

[Configuration of the Invention] (Means for Solving the Problem) The present invention is to store a heat storage body having a heating element inside in a housing insulated from the outside and to provide ventilation by a blower around the heat storage body. In a heat storage heater that blows air into a duct, mixes high-temperature air from the ventilation duct with low-temperature air supplied directly from a blower and blows warm air from the outlet, operates according to the temperature of the hot air blown. However, when the temperature of the hot air is high, a damper mechanism that operates the movable damper in the direction to close the air inlet to the ventilation passage, and a maximum when the movable damper of the damper mechanism operates in the direction to close the air inlet A stopper for restricting the operation of the movable damper is provided at a position before the movable position.

(Operation) In the present invention having such a configuration, the movable damper of the damper mechanism operates in the direction of closing the air inlet of the ventilation passage when the heat storage energy of the heat storage body is large. At this time, the movement of the movable damper is restricted by the stopper at a position before the maximum movable position. Therefore, there is no stopper even when the heater is operated with sufficient heat energy stored in the heat storage body to release the heat storage energy of the heat storage body and the movable damper tries to move in the direction to open the air inlet of the ventilation passage. Sometimes the movable damper does not move for the time required to move the movable damper from the maximum movable position to the position regulated by the stopper. Therefore, the amount of air sent to the air inlet of the ventilation passage during this time is controlled to be substantially constant.

Thus, at the beginning of the operation of the heater, the amount of heat energy released from the heat storage body is suppressed.

Eventually, the movable damper will rotate away from the stopper in the direction to open the air inlet.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The basic structure of the heater is the same as that shown in FIG. 4, and therefore the description of the entire structure will be omitted and only the essential parts will be described.

As shown in FIG. 1, the maximum movable position (2 in the figure) when the heat storage energy of the heat storage body 3 is sufficient and the movable damper 13 of the damper mechanism 10 rotates in a direction of closing the air inlet 5a of the ventilation passage 5 A stopper 14 for restricting the movement of the movable damper 13 is provided at a position (position shown by a solid line in the figure) before this position (position shown by a dashed line).

The movable stroke of the bimetal mechanism 11 when the movable damper 13 is rotated to the maximum movable position is l ₃ , the movable stroke of the bimetal mechanism 11 when it is moved to the position regulated by the stopper 14 is l ₂ , the movable damper 13 When the movable stroke of the bimetal mechanism 11 when the valve is fully opened is l ₁ , the movable stroke of the bimetal mechanism 11 is actually _{1 to} l ₂ because the movable damper 13 is restricted by the stopper 14.
It will work in the range of.

In this embodiment having such a configuration, the temperature around the bimetal mechanism 11 is considerably high when the heat storage body 3 has sufficient heat storage energy, and the bimetal mechanism 11 will be deformed until the maximum movable stroke is l ₃ . However, since the rotation of the movable damper 13 is restricted by the stopper 14, the deformation of the bimetal mechanism 11 is stopped when it is deformed up to the movable stroke l ₂ .

When the heater is operated in this state, the heat storage energy of the heat storage body 3 is released and the temperature around the bimetal mechanism 11 gradually decreases. However bimetal mechanism 11 for moving stroke until reduced to a temperature at which the ambient temperature corresponds to the movable stroke l ₂ is not a l ₂ or less, while the movable damper 13
Is in contact with the stopper 14. This is the heat storage body 3
Corresponds to the time required for the movable damper 13 to move from the maximum movable position to the position regulated by the stopper 14 when the heat storage energy is continuously discharged.

Therefore, the amount of air sent into the ventilation passage 5 during this time is substantially constant. In this way, the release of the heat storage energy of the heat storage body 3 is suppressed at the beginning of the operation of the heater. Therefore, there is no possibility that the temperature of the warm air blown out by releasing the excessive thermal energy becomes abnormally high.

Then, when the ambient temperature of the bimetal mechanism 11 eventually falls below the temperature corresponding to the movable stroke l ₂ ,
The movable stroke of the bimetal mechanism 11 becomes smaller than l ₂ . As a result, the movable damper 13 separates from the stopper 14 and rotates in the direction of opening the air inlet 5a.
In this way, when the heat storage energy of the heat storage body 3 decreases, the amount of air sent into the ventilation path 5 increases, and the damper mechanism 10 relatively moves.
The amount of low-temperature air supplied via the is reduced and the temperature of the hot air blown out is maintained at an appropriate temperature.

In this way, the temperature difference of the warm air blown out over the entire operating time can be made smaller than in the conventional case.

For example, the difference between the movable strokes l ₂ and l ₁ is 20 mm, and the stroke when the movable damper is rotated from fully closed to fully open is also 20 mm in the past, and the relationship of the operating distance of the bimetal mechanism 11 to the heat radiation time is shown in the graph. If it shows, it will become like FIG. The solid line graph in the figure represents the present embodiment, and the dotted line graph in the figure represents the conventional example.

That is, in the present embodiment, the stroke remains unchanged at 20 mm for the first hour, and then the stroke becomes smaller than the conventional one.

In addition, the output of the heat quantity with respect to the heat radiation time in the present embodiment and the conventional example can be shown as an average for each hour as shown in FIG. Also in FIG. 3, the solid line graph shows the present embodiment, and the dotted line graph shows the conventional example.

As is clear from this characteristic graph, in this example, it is understood that the thermal energy released is suppressed for one hour after the start of heat dissipation. Then, it can be seen that the heat energy released thereafter is kept higher than in the conventional case.

Therefore, the temperature difference of the warm air can be reduced over the entire operation time as compared with the conventional case.

Further, since only the stopper 14 that regulates the movable damper 13 is used, the configuration is extremely simple.

[Advantages of the Invention] As described in detail above, according to the present invention, the amount of energy released in a state where the heat storage energy of the heat storage body is relatively large can be suppressed as much as possible, and therefore the temperature of the warm air during the entire operation time can be reduced. It is possible to provide an output adjusting mechanism for a heat storage heater with a small difference and a simple structure.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention.
The figure is a configuration diagram of the main part, FIG. 2 is a graph showing the relationship between the heat radiation time and the operating distance of the bimetal mechanism in comparison with the conventional one, and FIG. 3 is the relationship between the heat radiation time and the average output heat amount per unit time. 4 is a graph showing a comparison with FIG. 4, FIG. 4 is a configuration diagram showing an overall configuration of the heat storage heater, and FIG. 5 is a configuration diagram of main parts showing a conventional example. DESCRIPTION OF SYMBOLS 1 ... Housing, 2 ... Heating element, 3 ... Heat storage body, 4 ... Insulating material, 5 ...
Ventilation passage, 6 ... Blower, 10 ... Damper mechanism, 13 ... Movable damper, 14 ... Stopper.

Claims (1)

[Scope of utility model registration request] 1. A heat storage body having a heating element inside is housed in a housing so as to be insulated from the outside, and air is blown into a ventilation passage formed around the heat storage body by a blower, and the high temperature from the ventilation passage is increased. In a heat storage heater that mixes air and low-temperature air directly supplied from the blower and blows out warm air from an outlet,
A damper mechanism that operates according to the temperature of the hot air blown out, and when the temperature of the hot air is high, operates a movable damper in a direction that closes the air inlet to the ventilation passage, and the movable damper of this damper mechanism is the air inlet. An output adjusting mechanism for a heat storage heater, wherein a stopper for restricting the operation of the movable damper is provided at a position before the maximum movable position when operating in the closing direction.