JPS5933950Y2 - Hot air machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hot air fan in which the air volume, air pressure, air temperature, etc. can be adjusted.

Conventionally, with hot air fans that only use heating elements with large wind pressure losses, it was not possible to increase the air volume and wind pressure at the hot air outlet without changing the specifications of the blower.

The purpose of the present invention is to obtain a hot air fan that can increase the air volume and air pressure without significantly changing the specifications of the fan.

In addition to the heating element with large wind pressure loss, the present invention installs a heating element with small wind pressure loss in a separate air path from the heating element with large wind pressure loss. By switching or adjusting the heating element air path, the air volume, air pressure, and air temperature at the outlet can be adjusted.

An embodiment of the present invention will be described below with reference to the drawings.

The configuration of the embodiment is as shown in FIGS. 1 and 2, except for 1 and 2.
is the suction port, 3 is the blower, 4 is the suction side air path, 5 and 5'
6a is a large wind pressure loss heating element, 6b is a small wind pressure loss heating element, ? 7b is an air passage for a heating element, 8 is a partition wall, 9 is an air passage on the outlet side, and 10 is an outlet.

That is, a blower 3 is located inside the suction port 2 in the hidden outer enclosure 1, and a suction side air passage 4 is located adjacent to the fan 3.

The suction side air passage 4 is divided into an air passage 7a and an air passage 7b, and a large wind pressure loss heating element 6a and a small wind pressure loss heating element 6b are provided in the recessed partition walls 8 of each of the air passages 7a and 7b. It is being

Moreover, the air passages 7a and 7b are formed by a part of the partition wall 8 and the air passage variable device 5.
They are each partitioned independently.

Furthermore, on the opposite side of the partition wall 8 to the drawing air paths 7a and 7b, there is an air outlet side air path 9 having an air outlet 10.

The operation of this embodiment is that the air sucked from the suction port 2 by the blower 3 enters the suction side air path 4, and is sent to the air path 7a, air path 7b, or drawing path depending on the position of the air path variable device 5, and further generates heat. Either the body 6a or the heating element 6b,
Alternatively, the air is warmed by passing through both heating elements, and is then discharged to the outside as warm air through the air outlet 10 through the air outlet 10 on the air outlet side.

In both the embodiments shown in FIGS. 1 and 2, the A position (FIG. 1) or the C position (FIG. Second
), the air passes through the small wind pressure loss heating element 6b and the air volume and wind pressure are increased.

Moreover, when the air path variable devices 5, 5' are set to the B position (FIG. 1) or the D position (FIG. 2), air flows into the air path 7a for the large wind pressure loss heating element, so that the air volume and wind pressure are reduced.

Of course, when the input type force is constant, if the air volume increases, the air temperature will decrease, and vice versa, it will increase, so it is possible to adjust the air temperature by changing the air volume.

In addition, in FIGS. 1 and 2, the arrow symbol indicates the air path variable device 5.
, 5' is shown, but it is also possible to send air simultaneously to the image path without completely switching to the air path 7a or 7b side, and the air volume, air pressure, air temperature, etc. can be adjusted as appropriate.

In addition, when switching the air path variable devices 5, 5', the heating element Oa
, 5b, it is necessary to switch in conjunction with the power source of the heating element to prevent abnormal temperature rise.

In addition, in the embodiment of FIG. 1 and FIG. 2, the heating element 6a.

Although only one heating element 6b is provided, there is no limit to the number as long as the heating element 6a and the heating element 6b are compared depending on the air volume, wind pressure, air temperature, and input power (heat radiation amount).

On the other hand, if the blower 3 is one with air volume and wind pressure characteristics that are suitable for the large wind pressure loss heating element 6a, when switching to the small wind pressure loss heating element 6b, the air volume and wind pressure at the outlet 10 can be changed without significantly changing the specifications of the blower. can be increased.

As described above, the present invention is capable of increasing the air volume and wind pressure at the outlet without significantly increasing the capacity of the blower itself by providing an air path dedicated to heating elements with different wind pressure losses and an air path variable device. This adjustment has the effect of appropriately adjusting the air volume, air pressure, air temperature, etc.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views of an embodiment of the present invention. 5.5... Air path variable device, 6a+ 6b...
...Heating element, 7a, 7b...Air passage.

Claims (1)

[Scope of utility model registration request] A hot air fan characterized in that heating elements with different wind pressure losses, which are attached to an inner partition wall, are each provided with a dedicated air path, and the air paths can be switched or adjusted by an air path variable device.