JPS63111299A - Electric fan - Google Patents

Abstract

PURPOSE:To easily perform a switch control, by dividing the whole upper surface part of a base bed, which supports a head part, into plural regions and constituting control parts respectively using these divided regions. CONSTITUTION:An electric fan, which provides its head part 13 on a base bed 11, is equipped with a motor, blower blades 15 and a protective net 16. The base bed 11 form a flat quadrangular pyramid shape, and its whole upper surface part is divided into plural regions. Of these divided regions, left, front and right sides provide control parts 17-19 of switches. Accordingly, the electric fan enables the plural control parts to be respectively wide ensured further the switches to be very easily controlled.

Description

[Detailed description of the invention] [Object of the invention] (Industrial application field) The present invention provides a head on a base, and controls the operation of a motor that rotationally drives a blower blade provided on the head. The present invention relates to an electric fan that is controlled by a switch operated by an operating section.

(Prior Art) Conventionally, this type of electric fan has been equipped with switches such as a switch for stopping motor operation, a switch for setting wind speed, and a switch for setting timer time. It is designed to control the operation of the motor. FIG. 5 shows the conventional configuration of the switch and operating section. In the figure, reference numeral 1 denotes the top plate of the base, and an operating piece 2 that can be vertically displaced is formed at a predetermined portion of the top plate 1, and a suppressing protrusion 2a is provided on the back surface of the operating piece 2. It is provided. A sheet 3 is attached to the surface of the top plate 1 to cover it together with the operation piece 2. A flexibly deformable operating portion 4 is formed in a portion of the sheet 3 corresponding to the operating piece portion 2 . Reference numeral 5 denotes a circuit board disposed on the back side of the top plate 1, on which a minute stroke type switch 6 is mounted.
The switch is turned on by pressing the operating piece section 2 via the operating section 4.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional device, the operation section 4 usually
It is formed only in a narrow area that can be pressed with a finger (shown by a solid line in Fig. 5), and when pressing the operation part 4, the position must be determined carefully by eye. There was a problem that it was difficult to operate. In particular, there is a plurality of operation sections 4 for each type of switch, and these are often arranged in a concentrated manner, leading to the risk of erroneous operation.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an electric fan whose switch operation can be performed extremely easily and reliably.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a head on a base, and operates a motor that rotationally drives a blower blade provided on the head using an operation unit. The device is characterized in that the upper surface of the base is divided into a plurality of regions, and each of the divided regions constitutes the operation section.

(Function) Since the operating section is constituted by a wide area obtained by dividing the entire top surface of the base into degrees, a sufficient width of the operating section can be ensured, and therefore, when operating the operating section, There is no difficulty in operation such as having to carefully determine the position by eye, and there is no erroneous operation such as operating a different operation section.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. First, in FIG. 1, reference numeral 11 is a base, and a support 12 is erected on the base 11. A head 13 is attached to the upper end of the support 12, and the base 11 has a support 12 erected thereon. A head 13 is provided on the stand 11. The head 13 includes a motor 14 (see FIG. 3), a blower blade 15, a protective net 16, and the like. The base 11 is formed in the shape of a flat quadrangular pyramid with each side gently sloped, so that the upper surface of the base 11 is divided into a plurality of sections, in this case four sections. ing. Of the divided areas, the left side area, front side area, and right side area constitute switch operation units 17, 18 and 19, which will be described later. Each of these operation parts 17, 18 and 19 is formed of a conductive plate material, and the surface thereof is, for example, silk-printed. It is displayed that this is for stopping, the operation section 18 displays that this is for setting the wind speed and starting operation, and the operation section 19 displays that this is for setting timer time and starting operation. There is. Further, on the back surface of each of these operation parts 17, 18 and 19, a conductive plate 20 is arranged in electrical contact with each other as shown in FIG. 2
only 0 is shown). In this FIG. 2, 21 is a circuit board arranged on the back surface of the base 11, on which switches 22, 23, 24 (see FIG. 3) are mounted, and each switch 22, 23, 24 are connected to each conductive plate 20 and therefore to each operating section 17, 18 and 19 via lead wires 25, respectively.
is connected to.

In FIG. 3, the switch 22 is for stopping the operation operated by the operation part 17, the switch 23 is for setting the wind speed and starting the operation operated by the operation part 18, and the switch 24 is a timer operated by the operation part 19. This is for time setting and operation start.

Since these have the same configuration, the operation stop Ichikawa switch 22
I am speaking on behalf of. This switch 22 includes an NPN type transistor 26 as a switching element and a capacitor 27.
The switch circuit includes a resistor 28 and a resistor 28. The collector of the transistor 26 is connected to an input terminal Kl of a control circuit 29 consisting of a microcomputer,
The emitter is connected to the negative line of the rectifier circuit 30. The resistor 28 and capacitor 27 are connected in series, with the resistor 28 side connected to the operating section 17 and the capacitor 27 side connected to the negative line of the rectifier circuit 30. And resistor 28 and capacitor 27
A common connection point with the transistor 26 is connected to the base of the transistor 26. The collector of the transistor 26 in the air volume setting and operation start switch 18 is connected to the input terminal of the control circuit 29, and the collector of the transistor 26 in the timer time setting and operation start switch 19 is connected to the input terminal of the control circuit 29. Connected to 3.

In FIG. 3, 31 is a plug connected to a commercial AC power supply, 32a and 32b are power busbars, and 33 is a motor drive circuit connected to the power supply bus 32a, and this motor drive circuit 33 is a switching element such as a triac. Each output terminal R1, R2 of the control circuit 29
And control signals from R3 perform power on/off control and tap switching control of the motor 14. - Here, when the user's fingers touch each of the operation parts 17, 18 and 19, since one side of the commercial AC power supply is normally grounded, the resistance 28 A small current flows through the series circuit of capacitor 27 and capacitor 271; charge is accumulated and transistor 26
is turned on, and as a result, input signals are given from each switch 22, 23 and 24 to each input terminal of the control circuit 29, 2 and 3. Therefore, each switch 22, 23 and 23
and 24 are so-called touch switch types. or,
When the control circuit 29 receives an input signal from the operation stop switch 22, it outputs a control signal to the motor drive circuit 31 to stop the operation of the motor 14, and receives an input signal from the wind speed setting/operation start switch 23. If there is, the wind speed will be changed sequentially according to the number of inputs: ``weak'' → ``medium'' = ``strong'' - ``weak''...
・A control signal is output to the motor drive circuit 31 to start operation by setting the timer to Set the time as "30 minutes" = "1 hour" → "2 hours" = "4 hours" - "30 minutes"... and output a control signal to the motor drive circuit 31 to start operation. do.

Now,! - According to the present embodiment having the configuration described above, each operation unit 17.
18 and 19 are constituted by a wide area formed by dividing the entire upper surface of the base 11 into a trap, so that each operating section 17, 18 and 19 can be sufficiently spacious. That is, in an electric fan, the base 11 is used to support a relatively heavy head so that it does not fall over, so it is usually formed relatively large, and the upper surface of the large base is divided into one unit in total. As a result, the divided area becomes wider. Therefore, by configuring the operating sections 17.18 and 19 in the divided areas, respectively, the operating sections 17.18 and 19 can have a wide area. As a result,
Operation stop switch 22° Wind speed setting/operation start switch 23 and timer time setting/operation start switch 24
When touching the operating sections 17, 18 and 19 with your fingers to operate the
7. 18 and 19 can be operated by touch, and each operation part 17
．． Since 18 and 19 are broadly divided, erroneous operations can be avoided.

In particular, in this embodiment, the base 11 is formed into a polyhedron with a flat quadrangular pyramid shape, and the planes of the base 111 are divided, so that the operation parts 17, 18 and 19 can be arranged in different directions. It is possible to clearly distinguish between the two, which has an even better effect in terms of facilitating switch operation and preventing erroneous operation.

Further, in the case of this embodiment, since each switch 22, 23, and 24 is configured as a touch switch type, each operation section 17.
18 and 19 can be operated by touching them with fingers, and as a result, in the case of so-called contact type switches that open and close mechanical contacts, the switch operation may be uncertain depending on the direction and force of the operation on the operation part. However, in this embodiment, the switch operation can be ensured.

In addition, in the second embodiment, the base 11 itself is formed into a polyhedron such as a quadrangular pyramid shape, so that the entire base 111-plane part is divided into m number of sections, but in other embodiments of the present invention, As shown in FIG. 4, the upper surface of the rectangular base 34 may be divided into a number of meters, and the operation sections 35, 36 and 37 may be configured in the divided areas, respectively. . Further, in the eleventh embodiment, a so-called touch switch is illustrated as the switch, but this may also be a contact switch with a minute stroke or the like.

The pond water invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with various modifications without departing from the gist.

[Effects of the Invention] As is clear from the above description, the present invention provides a head on a base, and operates a motor that rotationally drives a blower blade provided on the head using an operation unit. The device is controlled by a switch, characterized in that the upper surface of the base is divided into a plurality of regions, and each of the divided regions constitutes the operation section,
This provides an excellent effect in that a wide number of operating sections can be secured, making it extremely easy to operate the switch, and eliminating erroneous operations.

[Brief explanation of the drawing]

1 to 3 show one embodiment of the present invention, in which FIG. 1 is an overall perspective view, FIG. 2 is an enlarged longitudinal sectional side view of main parts, FIG. 3 is an electric circuit diagram, and FIG. The figure is a diagram corresponding to FIG. 1 showing another embodiment of the present invention. FIG. 5 is a diagram corresponding to FIG. 2 showing a conventional example. In the figure, 11 is a base, 13 is a head, 14 is a motor, 15 is a blower blade, 17, 18 and 19 are operating parts, 22 is a switch for stopping operation, 23 is a switch for setting wind speed and starting operation,
24 is a timer time setting and operation start switch, 34 is a base, and 35, 36 and 37 are operating sections.

Claims (1)

[Claims] 1. In a device in which a head is provided on a base, and the operation of a motor that rotationally drives a blower blade provided on the head is controlled by a switch operated by an operation part,
An electric fan characterized in that the upper surface of the base is divided into a plurality of regions, and each of the divided regions constitutes the operation section.