JPH028654A - Air blower - Google Patents

Abstract

PURPOSE:To enable a small-sized air blower to be attained and perform an automatic ON/OFF operation of a heater by a method characteristic of a self- temperature controlling heater forming a vane wheel is set in such a manner that its resistance value is high in case of about 20 deg.C or more, no heat is generated and the resistance value is low in case of about 10 deg.C or less and heat is generated. CONSTITUTION:As a vane wheel 1 is rotated by a motor 2, air is sucked through a blowing port 3a as indicated by an arrow (a) and then discharged through a discharging port 3b. As a self-temperature controlling heater forming the vane wheel 1 is energized through an energization circuit 4, in case that an atmosphere temperature is about 20 deg.C or more, the resistance value is sufficiently high, so that an electric current is scarcely supplied and no heat is generated, resulting in that the device is operated as a mere air fan or a circulator. In turn, in case that the atmosphere temperature is about 10 deg.C or less, a resistance value of the self-temperature controlling heater is low, so that a high electric current flows and an amount of heat is also increased. Accordingly, air blown by the vane wheel 1 is heated and discharged and the device is operated as a hot air heater.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a blower device used for heating and cooling in domestic and industrial applications.

2. Description of the Related Art As shown in FIG. 4, a conventional blower device of this type houses an impeller 23 and a motor 22 for driving the impeller inside an outer box 21 having an air inlet 21a and an outlet 21tl. The heater 24 is fixed to the downstream side of the impeller 23 and has a length of 11 m, and by manually turning the power to the heater 24 to 0N10FF using a switch (not shown) provided in the outer box 21, it is possible to connect the heater 24 from the discharge port 21b. They were getting warm or cool air. Furthermore, a configuration has also been considered in which the ambient temperature is detected using a sensor (not shown) that detects temperature, and the current to the heater 24 is automatically set to 0N10FF based on the detected value. In addition, as shown in FIG. 5, two heaters 34, 3
5 was installed to adjust the amount of heat generated by this blower.

Problems that Komei is trying to solve However, this type of feeder 8a requires space to incorporate the heaters 24, 34, 35 on the downstream side of the impeller 11, which limits miniaturization. 24
, 34.35 0N10FF must be performed manually or a heater control circuit including a sensor for temperature detection is required.

The present invention solves such conventional problems, and aims to provide an air blower that can reduce the size of the air blower and automatically perform 0N10FF of the heating element without using a special control circuit. It is something to do.

Means for Solving the Problems In order to solve the above problems, the blower device of the present invention includes an impeller formed of a self-temperature-controlled heating element whose resistance increases as the temperature increases, and an impeller that drives the impeller. and an energizing circuit capable of energizing the self-temperature control I light-silent body that forms a rotary impeller even when the moeki impeller is rotating, and the characteristics of the self-temperature control heating element are , the resistance value becomes sufficiently large at temperatures above about 20° C. and no heat is generated, and the resistance value becomes small below about 10° C. so that heat is generated sufficiently.

Furthermore, in addition to the above-mentioned configuration, the blower device of the present invention is configured such that an energizing circuit is provided in each of the regions where the impeller is divided into a plurality of regions, and the plurality of energizing circuits can be energized separately or simultaneously. It is.

Function: With the above configuration, self-temperature control r! Since the characteristics of the O heating element are set so that the resistance value becomes large at temperatures above about 20℃, it does not generate heat at temperatures above about 20℃ and functions as a fan or circulator, while at temperatures above about 20℃.
Since the resistance value is set to be sufficiently small below, the impeller generates heat at low temperatures of about 10°C or less and operates as a hot air fan.

In addition, in a blower device in which a current-carrying circuit is provided in each region where the impeller is divided into a plurality of regions, by changing the number of current-carrying circuits among the plurality of current-carrying circuits to the self-temperature control heating element, The amount of heat generated by the hot air fan can be adjusted.

Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a sectional view of a blower device showing an embodiment of the present invention. In FIG. 1, 1 is an impeller formed by a self-temperature control 611 heating element whose resistance increases as the temperature increases, 2 is a motor that drives the impeller 1, and these impeller 1 and motor 2 are , is housed inside an outer box 3 having an inlet 3a and an outlet 3b. Reference numeral 4 denotes an energizing circuit that energizes the self-temperature control heating element forming the impeller 1;
By supplying power from a power supply line 7 via a slip ring 6 rotatably provided to the impeller 1, electricity can be supplied even while the impeller 1 is rotating. Here, the characteristics of the self-temperature-controlled heating element il1 forming the impeller 1 are set as shown in FIG. At lower temperatures, the resistance value is sufficiently small.

In the above configuration, when the impeller 1 is rotated by the motor 2, air is blown in from the air inlet 3a and discharged from the outlet 3b as shown by arrow a.

When the self-temperature-controlled ItIR heating body forming the impeller 1 is passed through the current-carrying circuit 4, the resistance value is sufficiently large when the ambient temperature is about 20°C or higher, so almost no current flows. Since it does not heat up, this blower can be used as a fan or circulator.

However, when the ambient temperature is low, about 10 degrees Celsius or less, self-temperature control is possible! 1] Since the resistance value of the heating element decreases, a large current flows and the amount of heat generated increases. therefore,
Since the air blown by the impeller 1 is warmed and discharged, the air blowing position G acts as a hot air (peak). By using it as the impeller 1, it can be used as an air blower that blows warm air when the temperature is low and cool air when the temperature is high, without using a special heater control circuit.

Also, self-temperature control! Since the impeller 1 is formed of the heating element 11 itself, there is no need for a space to separately incorporate a heating element such as a heater, and the blower can be downsized.

FIG. 3 is a sectional view of a Jl sending device showing another embodiment of the present invention. In FIG. 3, 11 is an impeller, 12 is a motor, and 13 is an outer box, and these structures are the same as those of the above embodiment, and the characteristics of the self-temperature controlled heating element forming the impeller 11 are also the same. However, in this embodiment, the impeller 11 is divided into two regions, and energizing circuits 14A and 143 are disposed corresponding to each region. These energizing circuits 14A, 14B are connected to four electric wires 15A, 15131. :,
By supplying power from the respective power supply lines 17A and 173 via the slip rings 1f3A and 163 that are rotatably provided to the rotating shaft 12a of the motor 12, the impeller 11 can be turned 0N10FF independently even while it is rotating. is now possible.

Even if this configuration is achieved, the self-temperature control heating element forming the impeller 11 does not generate heat when the ambient temperature is about 20° C. or higher, as in the above embodiment, so this blower device is simply a single fan. Alternatively, it works as a circulator, and when the ambient temperature is about 10°C or less, the self-temperature control RJO heating element generates heat, so this sending device 8a works as a hot air fan,
There is no need to use special heater control circuits. Further, by energizing one or both of the energizing circuits 14A, 14B, it is possible to adjust the amount of heat generated, and furthermore, since the energizing circuits 74A, 143 are provided in one impeller 11. Compared to the conventional one having two heaters, the space for installing the heater can be significantly saved, and the blower can be further downsized.

In this case, the number of divided regions of the impeller and the energizing circuit should be changed to 3.
More than one may be provided, and with this blower device, it is possible to adjust the heat load even more finely, and the space of the blower device can be further reduced.

Effect of light As mentioned above, according to the air blowing position of the present invention, the following effects can be achieved by 19
It will be done.

(1) Since the impeller is made of a self-temperature-controlled heating element, the impeller itself becomes the heating element, and there is no need to incorporate a separate heater, allowing for a smaller blower device and adjustable heating suspension. , this effect becomes even greater.

(2) The characteristics of the self-temperature control tIIu heating element are set so that the resistance value becomes sufficiently large at temperatures above about 20°C, and
In the following, on the contrary, I am trying to show a small resistance value, so
When the ambient temperature is about 20°C or higher, it does not generate heat and can be used as a medium eyebrow machine, but when the ambient temperature is below about 10'C, it can be heated sufficiently with a blower to use ff1J.
Switching to work as a heater can be done automatically without a special heater control circuit.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an air blower showing an embodiment of the present invention, and FIG. 2 is a self-temperature control 21 forming an impeller of the air blower.
11 is a resistance temperature characteristic diagram of a heating body, FIG. 3 is a sectional view of a blower device showing another embodiment of the present invention, and FIGS. 4 J3 and 5 are sectional views each showing a conventional blower device. 1.11... Impeller (self-temperature control heating element), 2゜1
2...Motor, 4.14A, 14B...Electrifying circuit, 5゜15A, 15[3...4 lightning 1 gland, 5.16A
, 16B...Slip ring, 7.17A, 17B
...Power supply line. Agent Morimoto Zan Hiro City Figure 1 Figure 2 Layer thickness C) Figure 42! ! Hajiho Figure 5

Claims (1)

[Scope of Claims] 1. An impeller formed of a self-temperature-controlled heating element whose resistance value increases as the temperature increases, a motor that drives this impeller, and a motor that drives the impeller even when the impeller is rotating. and an energizing circuit capable of supplying current to the self-temperature-controlled heating element forming the vehicle, and the characteristic of the self-temperature-controlled heating element is that the resistance value becomes sufficiently large at about 20° C. or higher, without generating heat. The blower is set so that the resistance value decreases below 10℃ and generates sufficient heat. 2. The blower device according to claim 1, wherein the energizing circuit is provided in each region of the impeller divided into a plurality of regions, and is configured to be able to energize the plurality of energizing circuits separately or simultaneously.