JPH0334868Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a pilot lamp device for electrical equipment, and in particular, to an electrical equipment that can display the total operating time of equipment equipped with the pilot lamp. Regarding pilot lamp equipment.

[Conventional technology]

Generally, in the case of electrical equipment, a pilot lamp device whose lamp part is a neon lamp, light emitting diode, incandescent lamp, etc. is used to indicate whether or not electricity is being supplied reliably from the power source. . This pilot lamp device is installed in an easily visible position on the operation panel or front cover of an electrical device, and lights up when the electrical device is in operation to indicate that fact.

[Problem that the invention attempts to solve]

However, in most cases, pilot lamp devices that have been used conventionally have a single function of simply indicating the operation of the electrical equipment by lighting them up.

On the other hand, for electrical equipment that operates irregularly, such as portable engine generators, it is important to avoid unnecessary inconvenience to the operator as a guideline for determining the service life and timing of maintenance inspections. There have been many requests for automatic measurement of the total operating time of the device with a simple configuration without having to set the total operating time of the device.

[Purpose of invention]

In view of the situation of the prior art, the present invention provides a pilot lamp for electrical equipment that is integrally attached to a pilot lamp and has a function of displaying the total operating time of the electrical equipment equipped with the pilot lamp. Its purpose is to provide a lamp device.

[Means for solving problems]

Therefore, in the present invention, in a pilot lamp device for electrical equipment, which is equipped with a lamp part that indicates the power supply of the electrical equipment by lighting, the lamp case that holds and houses the lamp part is proportional to the amount of electricity energized. A side surface of the lamp case, which is held inside the electrical equipment, is provided with an hour meter whose indicator moves to display the total energization time, and a display section that displays the accumulated time of the hour meter. The purpose of the present invention is to achieve the above object by adopting a configuration in which the device is disposed in a section.

[Effect]

Each time an electrical device is powered on, the pilot lamp lights up to indicate that fact. On the other hand, the hour meter built into the pilot lamp device operates when the pilot lamp is energized. This operation is performed in proportion to the amount of electricity supplied, so by keeping the current supplied to the hour meter constant, the movement of the index of the hour meter is equal to the total lighting time of the pilot lamp, i.e. The total operating time of the electrical equipment will be displayed in an integrated manner.
The accumulated time can be confirmed when the pilot lamp is removed from the equipment.

[Example of idea]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

First, in FIG. 1, reference numeral 2 indicates the entire drive circuit of a pilot lamp device for electrical equipment installed in an electrical equipment (for example, an engine generator). This pilot lamp device 2 is comprised of a lamp section 4 that indicates power supply operation of the device by lighting (light emission), and a time meter 6 that integrates and displays the energization time to the lamp section 4.

Of these, the lamp section 4 is constructed by connecting a light emitting diode 8 as a main body of the lamp section and an adjustment resistor 10 in series, and is connected to the power source of the device via terminals a and b. Therefore, as soon as the device is powered on, the light emitting diode 8 emits light to display the fact.

On the other hand, the hour meter 6 is connected in parallel to the lamp section 4. To explain this in detail, the terminal a of the pilot lamp device 2 is connected to the adjustment diode 1.
2. It reaches the cathode end of the Zener diode 16 for constant voltage via the resistor 14 for current adjustment. The anode end of this Zener diode 16 is connected to terminal b
connected to. The value of the resistor 14 is set so that when the power supply voltage of the device is applied between the terminals a and b, a predetermined constant voltage is applied to both ends of the Zener diode 16. Further, an hour meter main body 18 serving as a display section of the hour meter is connected in parallel to this Zener diode 16. Therefore, both ends of the hour meter main body 18 are always maintained at a constant voltage, thereby performing an operation of displaying the time integration, which will be described later.

Here, the outline of the hour meter main body 18 will be explained based on FIG. 2. In FIG. 2, when a glass tube 20 having a predetermined inner diameter is filled with, for example, mercury 22 and an electrolyte 24 and a DC voltage is applied between electrodes 26, 26, the mercury 22 flows from the + side to the - side through the electrolyte 24. is electrolytic deposition (electrolytic reaction), electrolyte 2
4 moves from the - side to the + side as shown by arrow P. In this electrolytic reaction, it is known that the amount of a substance (mercury) deposited is proportional to the amount of electricity passed (Faraday's law). This ultimately leads to electrolyte 24
Since the moving distance of the electrolytic solution 24 is also proportional to the amount of electricity supplied, by keeping the flowing current constant, the total energizing time can be determined using the movement of the electrolytic solution 24 as an index.

In this embodiment, the hour meter body 18 configured and operated as described above is equipped as shown in FIG. The operating time of the on-board electrical equipment (for example, engine generator) is measured and displayed in an integrated form by moving the indicator 24.

Here, the maximum measurement time of the hour meter 6 is determined by the value of the resistor 14 and the Zener diode 16.
The measurement time setting means 27 is composed of these resistors 14 and the Zener diode 16.

Next, the pilot lamp device 2 of the time meter 6
Examples of implementation are shown in FIGS. 3 to 5. first,
In FIG. 3, 30 is the pilot lamp device 2.
The lamp case is shown. This lamp case 30
A resin outer case 32 formed into a substantially cylindrical shape as a whole, a resin lens case 33 integrally joined to the left end of the outer case 32 in FIG. 3 and formed into a substantially hemispherical shape as a whole; Said outer case 3
2 and an inner holding case 34 that is inserted into the inside of the holding case 34 and fixes and holds each circuit component shown in FIG. Here, transparent members are used for the outer case 32 and the lens case 33.

Among these, the inner holding case 34 has a counterbore-shaped mounting hole 34A formed therein for mounting a circuit element, and a mounting hole 34A for a lead wire from the bottom of the mounting hole 34A to the right end side in FIG. Through holes 34B, 34B (see FIG. 4, 2) are formed. Further, at a predetermined position on the side surface of the mounting hole 34A, as shown in FIG.
A long and narrow display window portion 34C for mounting the display device 8 is formed so as to penetrate through the front and back sides. Furthermore, a stepped portion 34Aa at the left end in FIG. 3 of the mounting hole 34A,
The light emitting diode 8 is arranged with a centering seat 36 arranged thereon. The lead terminal of this light emitting diode 8 is provided with the mounting hole 34.
Using the space inside A, the elements shown in FIG.
b' is drawn out and connected to the power supply of a predetermined device.

In the above implementation example, the glass tube 20 of the hour meter main body 18 is arranged as shown in FIG. There is. Furthermore, a predetermined time scale 37 is engraved on the inner holding case 34 along the display window 34C. Then, the inner holding case 34 mounted as described above is attached to the third outer case 32.
When inserted as shown in the figure, the light emitting diode 8 is arranged at a predetermined position in the lens case 33. As shown in the figure, a stepped portion 33A is formed inside the lens case 33 to provide a lens effect, and a light shielding plate 38 is disposed as shown in the figure.

In addition, the inner holding case 34 and the outer case 3
2 is locked by a locking mechanism 40. This lock mechanism 40 has lock holes 34D, 34D (see FIG. 4, 1,
2), and substantially key-shaped key portions 32A, 32A (see FIG. 3,
(see Fig. 5), and the key part 32
The removable lock is achieved by utilizing the slight elastic force of A and 32A.

Furthermore, the lens case 33 of the outer case 32
On the side, there are stop portions 32B, 32B having a substantially triangular side surface.
is formed, and the elasticity of this stopper portion 32B is used to secure the front cover 4 of a predetermined operation panel of an electrical device.
It is designed to be attached to 2. Here, the fifth
Reference numerals 32C and 32C in the figure are positioning parts when attaching to the front cover 42.

Next, the overall operation of this embodiment will be explained.

First, when the power is turned on and a specified electrical device starts operating, a light emitting diode 8 is activated to notify the user of this operation.
lights up. At the same time, the time meter 6 is activated and the indicator (electrolyte part) 24 moves a predetermined distance based on the chemical reaction described above during the time that the device is in operation. In the case of re-operation, this hour meter 6 integrates and displays from the previous final index position as described above, so depending on the distance traveled by this index, the
The total operating time of the device will be displayed.

During normal use, the hour meter main body 18 is located on the side of the lamp case 30 held inside the device, so it cannot be seen from the outside, but if necessary, it can be The indicator 24 of the hour meter 6 can be checked by removing the entire lamp device 2 from the device. That is, when the lamp case 30 is removed from the device, since the outer case 32 is transparent, the inner display window 34C is visible as shown in FIG.
And the hour meter main body 18 can be seen through.
As a result, by visually observing the index 24 and comparing it with the time scale 37 on the inner holding case 34, the total operating time can be seen at a glance, for example, ``it has already been operated for 1500 hours''.

In this way, in this embodiment, the hour meter 6, which can set the maximum operating time arbitrarily, is incorporated into the existing pilot lamp device, so the overall size is smaller and cheaper than when each hour meter is installed separately. It has the advantage of being In addition, since the hour meter body 18, which serves as the display section of the hour meter 6, is designed to be invisible from the outside during normal use, operators and others are required to check more electrical equipment. It also has the advantage of eliminating unnecessary troubles such as, etc., and requiring only the same operations as before.

On the other hand, if necessary, pilot lamp device 2
When pulled out, the total operating time of the electrical equipment can be immediately and quantitatively determined, allowing for appropriate maintenance and inspection, which has the advantage of improving the durability of the equipment.

In the above-described embodiment, the hour meter body 18 is fixedly held using a compound, but the present invention is not necessarily limited to this, and for example, a holder of a type that absorbs vibration etc. is used to hold the hour meter body 18 inside. It may be arranged in a case, and the hour meter main body 18 may be detachably attached to this holder. Further, the time scale does not have to be directly engraved on the inner holding case, but a simple mark may be printed on the outside of the glass tube 20 of the hour meter main body 18.

[Effect of idea]

As described above, according to the present invention, a pilot lamp device that lights up to indicate the power drive of electrical equipment,
As mentioned above, since the time meter that integrates and displays the total energization time to the pilot lamp device (that is, the total operating time of the device) is integrated, it is better to compare it with the case where the time meter is installed separately. The overall structure has been made smaller and easier to handle, and the hour meter display has been actively placed on the side of the lamp case, so you only need to check the display when necessary. Therefore, even if complicated operations and operations are performed during normal operation, the total operating time of the equipment can be displayed quantitatively and automatically, making it possible to perform appropriate maintenance of the equipment. It is possible to provide a practical pilot lamp device for electrical equipment.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing an embodiment of the present invention;
Figure 2 is a cross-sectional view showing an outline of the hour meter body in Figure 1, Figure 3 is a cross-sectional view showing an example of implementation in Figure 1,
1 is a partially cutaway side view showing the inner holding case in FIG. 3, FIG. 42 is a right side view of FIG. 41,
FIG. 5 is a partially cutaway side view showing the outer case and lens case in FIG. 3, and FIG. 6 is an explanatory view showing index reading on the hour meter body. 2... Pilot lamp device for electrical equipment, 4...
... Lamp part, 6... Hour meter, 18... Hour meter main body as a display part of the hour meter, 24... Electrolyte part as an indicator, 30... Lamp case.

Claims (1)

[Claims for Utility Model Registration] In a pilot lamp device for electrical equipment, which is equipped with a lamp section that indicates the power supply of the electrical equipment by lighting, the amount of electricity supplied to a lamp case that holds and houses the lamp section. The lamp case is equipped with an hour meter whose indicator moves in proportion to the total energization time and is capable of displaying the total energization time, and a display section for displaying the accumulated time of the hour meter is held inside the electric device. A pilot lamp device for electrical equipment, characterized in that it is disposed on the side surface of the device.