JP3973144B2 - Switching device switching state discrimination device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switching state determination device for a switching device attached to a generator.
[0002]
[Prior art]
Conventionally, portable generators are used in a variety of load devices, and one generator can be used to switch the windings to cope with them, and the output can be used for three-phase AC or single-phase AC. There is something that was made. And the switching is not performed frequently, and if it is switched during the operation of the generator, the load device connected to the generator body and the generator may be damaged, and the switch Is installed in a position that cannot be seen from the outside, such as inside the control panel or inside the side door provided on the side of the generator. Therefore, on the other hand, it is difficult to see from the outside of the generator whether the switching device is switched to a three-phase alternating current or a single-phase alternating current. Therefore, when operating the generator, the generator is started after opening the operation panel and the side door and confirming the switching position of the switching lever.
[0003]
As a conventional technique corresponding to this, there is one that switches the connection of the armature coil of the generator, sets the output from the output terminal to three-phase AC or single-phase AC, and displays the status by lighting the indicator lamp (special feature). No. 2001-57664).
[0004]
[Problems to be solved by the invention]
However, in this method, the power of the display lamp is taken from the generator and the display lamp is lit. Therefore, when the generator is not operated, it is not lit, and the machine is completely in a maintenance or operation preparation state. When the switch is stopped, there is a problem that it is not known whether the switch is switched to the three-phase AC or single-phase AC position.
[0005]
The present invention has been made in order to solve the above-described problems, and switches such as a three-phase / single-phase switch for a generator that are not frequently switched are placed in a position where they cannot be seen from the outside such as an operation panel. An object of the present invention is to provide a switching state discriminating device for a switching device that can confirm the switching state at a glance without requiring a power source and without opening an operation panel even when installed.
[0006]
[Means for Solving the Problems]
The present invention that has solved the above problems is a portable engine-driven generator that includes a switch having a switch lever for switching the specifications of the output power in the operation panel, and for determining the switching state of the switch lever. The device is provided with a tape material as an identification means at the tip of the switching lever, and is separately provided at a position corresponding to the switching position of the tip of the switching lever on the operation panel. A window portion on which a transparent member that can be seen through is integrated with a name plate for visually recognizing the tip of the switching lever from the outside is provided.
[0007]
According to the present invention, by forming a window portion for viewing the distal end portion of the switching lever of switching unit from outside operation panel, by viewing the position of the tip of the switching lever, without opening the control panel The switching state of the three-phase alternating current or single-phase alternating current can be determined.
[0009]
According to the present invention, a window for viewing the distal end portion of the switching lever switcher externally, is covered with the transparent member, it is possible to not leak the sound generator is generated externally, Since outside air is not sucked from this window, it is possible to prevent dust from accumulating at contact points of the switch or rainwater from entering.
[0011]
According to the present invention, since the transparent member is provided integrally with the nameplate, the position of the switching lever of the three-phase alternating current or single-phase alternating current is displayed on the nameplate so that the three-phase alternating current or single-phase alternating current is displayed. Can be confirmed more accurately.
[0013]
According to the present invention, by pasting easily distinguished tape having a conspicuous color such as yellow tip of the switching lever of the switching unit, the switching state of the switching lever in the operating panel further effectively discriminated be able to. As another identification means, the switching lever may be painted or covered to facilitate identification.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a switching state discriminating apparatus for a switching device according to the invention will be described in detail with reference to the drawings. As an embodiment, in a portable soundproof generator that can easily generate power at an arbitrary place and be used as a power source for various types of load equipment, the connection of the armature windings of the generator body can be switched to change the three-phase A three-phase / single-phase switching device that can be switched to a four-wire alternating current (hereinafter simply referred to as a three-phase alternating current) or a single-phase three-wire alternating current (hereinafter simply referred to as a single-phase alternating current) will be described as an example.
[0015]
As shown in FIGS. 1 (a) and 1 (b), the generator 1 includes an engine 5 and a generator body 6 driven by the engine 5 inside a soundproof case 4, on the front surface thereof. An operation panel 3 is provided.
[0016]
The operation panel 3 includes a starter switch 17, three-phase / single-phase switching indicators 19a and 19b, windows 20a and 20b for looking through the switching lever, a three-phase (single-phase) output terminal 24, a leakage relay 25, a three-phase / single Various instruments such as a phase changer 28 and a frequency meter are provided. The three-phase / single-phase switching device 28 is attached to a substantially central portion of the control box 32 inside the operation panel 3 through a mounting bracket so as not to be seen from the outside. The operation panel 3 is provided with three-phase / single-phase indicator lamps 19a, 19b beside the windows 20a, 20b looking into the switching lever. When the indicator lamps 19a and 19b are turned on, the three-phase or single-phase switching state of the switch 28 can be determined.
[0017]
In FIG. 2, a switching device switching state discriminating device 2 is a device for discriminating the three-phase or single-phase switching state of the switching device 28. The switching device is provided with a yellow tape 31 attached to the tip as an identification means. A three-phase / single-phase switch 28 having a lever 30 and windows 20a and 20b in the operation panel 3 for viewing the switching lever 30 having a square shape for visually recognizing the tip of the switching lever 30 from the outside. .
[0018]
Further, the switching lever 30 for switching the switching device 28 can be moved up and down to switch between three phases or single phase, and the operation panel 3 includes the upper and lower portions of the switching lever 30 of the switching device 28. Window portions 20a and 20b are provided at positions corresponding to the switching positions. A name plate 33 is attached to the front surface of the operation panel 3 so as to cover the windows 20a and 20b.
[0019]
As shown in FIG. 3, the nameplate 33 is provided with transparent portions 34a and 34b at positions where the tip of the switching lever 30 can be seen when switched to three-phase alternating current or single-phase alternating current. Round holes 35a and 35b for arranging indicator lamps 19a and 19b for displaying that switching to alternating current or single-phase alternating current is provided in pairs with transparent portions 34a and 34b. Furthermore, the name which shows a switching state is described in the position which can see the front-end | tip part of the switching lever 30 when switched to three-phase alternating current or single-phase alternating current, and the position which shows the indicator lamps 19a and 19b, The intermediate part is also described. , Notes etc. are described.
[0020]
Next, this usage will be described. As shown in FIG. 4, when the switching lever 30 is positioned downward to select single-phase alternating current, the operator 37 holds the yellow tape 31 attached to the tip of the switching lever 30. Since the transparent portion 34b on the side of the nameplate 33 marked as single-phase AC can be seen through the peephole 20b below the operation panel 3, it is easy for the switch 28 to select single-phase AC. Can be confirmed.
[0021]
At this time, the inside of the window portion 20a looking into the upper switching lever on the operation panel 3 looks into the dark inside of the control box 32, and appears black. Therefore, it can be confirmed that the three-phase / single-phase switch 28 has not selected three-phase alternating current.
[0022]
At the same time, when the starter switch 17 is turned ON, the three-phase / single-phase switching indicator lamp 19a or 19b provided at a position corresponding to the window portion 20a or 20b looking into the switching lever 30 on the operation panel 3 is turned on. In addition, it can be confirmed supplementarily that the three-phase / single-phase switch 28 is selected. The three-phase / single-phase switching indicator lamp 19a or 19b is automatically turned on when a battery is used as a power source and the switch 28 is switched to three-phase AC or single-phase AC. Since this indicator lamp (specifically, a light emitting diode) is provided, even when the generator is not operating, when the starter switch 17 is turned on, the position of the switch 28 is confirmed. can do.
[0023]
On the other hand, when the switching lever 30 with the yellow tape 31 is moved upward in order to select three-phase alternating current, the yellow tape 31 at the tip of the switching lever 30 is moved for the same reason as described above. Through the transparent portion 34a on the side of the nameplate 33 marked as three-phase alternating current, the window portion 20a is viewed through the switching lever 30 above the operation panel 3.
[0024]
Thus, the switching state of the three-phase / single-phase switching device 28 can be determined through the state of the switching lever 30.
[0025]
The embodiment described above is an example for explaining the present invention, and the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the gist of the invention. . For example, although the viewing window is a square window, a round window, an elliptical window, or the like may be selected as appropriate. Also, on the operation panel, the nameplate of the film describing the display related to the three-phase four-wire AC and the single-phase three-wire AC is pasted so as to cover the observation window portion and the indicator lamp portion. A transparent film or the like may be attached as a transparent member only to (□ part), and other materials may be used. Moreover, although yellow tape was stuck on the front-end | tip of a switching lever, a yellow lever may be sufficient. Furthermore, the switching device targeted by the present invention is not limited to the three-phase / single-phase switching device, but naturally includes other switching devices having a switching lever.
[0026]
【The invention's effect】
As described above, according to the present invention, the operation panel is formed by forming the window on the operation panel so that the tip of the switching lever of the switch of the portable engine-driven generator can be visually recognized from the outside. Even if it is not opened, the switching state of the three-phase alternating current or single-phase alternating current can be determined. In this way, when a switch that does not switch frequently, such as a three-phase / single-phase switch, is installed in a position where it cannot be seen from the outside, such as in the operation panel, no power supply is required. Since the switching situation can be confirmed at a glance without opening the operation panel , and the viewing window portion for visually recognizing the tip of the switching lever of the switching device from the outside is covered with a transparent member, The sound generated by the engine that drives it can be prevented from leaking to the outside, and since outside air is not blown through this window, dust can be prevented from collecting at the contacts of the switch, and the like. Since the transparent member is integrated with the nameplate, the position of the three-phase AC / single-phase AC switching lever is displayed on the nameplate, so that the switching state of the three-phase AC or single-phase AC can be more accurately indicated. Can be confirmed , By pasting easily distinguished tape having a conspicuous color such as yellow tip of the switching lever of the switching unit, the switching state of the switching lever in the control panel, it is possible to further effectively discriminated. Further, even when a standard switching lever is used, it can be easily identified.
[Brief description of the drawings]
FIG. 1 shows an entire generator equipped with a switching state discriminating device for a switching device according to the present invention, wherein (a) is a front view and (b) is a right side view.
FIG. 2 is a side sectional view showing an outline of a switching state discriminating apparatus for a switching device according to the present invention.
FIG. 3 is an explanatory view showing a nameplate of the switching state discriminating device of the switching device according to the present invention.
FIG. 4 is a perspective view showing an outline of a switching state discriminating apparatus for a switching device according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Generator 2 Switching state discrimination | determination apparatus 3 Switchboard 4 Soundproof case 5 Engine 6 Generator main body 17 Starter switch 19a, 19b Indicator light 20a, 20b Window part 24 Three-phase (single-phase) output terminal 25 Earth leakage relay 28 Switching Device 30 Switching lever 31 Yellow tape 32 Control box 33 Name plate (film)
34a, 34b Transparent portion 35a, 35b Round hole 36 Worker (eye looking at the side without the switching lever)
37 Workers (Eyes looking at the switch lever)

Claims (1)

In a portable engine-driven generator equipped with a switching lever having a switching lever for switching the specifications of the output power inside the operation panel, the apparatus is for determining the switching state of the switching lever, and tape material is attached as identifying means to the tip portion, on the board of the control panel, separately provided at positions corresponding to the switching position of the distal end portion of the switching lever, from the outside tip of the switching lever A switching state discriminating device for a switching device of a portable engine-driven generator, comprising a window portion on which a transparent member that can be seen through is integrated with a nameplate for visual recognition.

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