CN2214682Y - Automatic voltage regulator with input voltage indicator - Google Patents

Abstract

The utility model provides an automatic voltage regulator with input voltage indicators, which is composed of a wire package, a servo motor, and a driving reduction gear. A brush arm is installed on a main shaft of the reduction gear; a carbon brush is installed on the brush arm. The utility model is characterized in that an indicator is connected to the carbon brush in a mechanical way; the different positions of the carbon brush, which correspond to different input voltages, are indicated; the input voltages are indicated. The indicator which is a scale disk is installed on the main shaft; an observation window is positioned on a cover casing which corresponds to the scale disk, and scale lines are arranged on the observation window. The utility model has the advantages that the structure is simple, the utility model is visual, and the position of the carbon brush can be directly reflected. The utility model can be used for the indicator of the input voltages, and the utility model can be used for an automatic voltage regulator with the function of monitoring.

Description

Automatic voltage regulator with input voltage indicator

The utility model relates to the automatic voltage regulator in the voltage control apparatus, and the automatic voltage regulator of input voltage indicator is particularly arranged.

The contact automatic voltage regulator of voltage stabilizing in the past by line bag, servomotor and transmission decelerating device, is equipped with brush arm on the main shaft of reduction gear, carbon brush also is installed on it constitutes.In order to play the supervision effect, technique known is to connect an indicating instrument, because the more accurate cost height of indicating instrument itself, and easy break-down.

The purpose of this utility model provides the automatic voltage regulator that the input voltage indicator is arranged that a kind of double as simple in structure monitors.

The utility model is finished as follows: mechanically be connected with indicator on carbon brush, carbon brush should be indicated by the pairing diverse location of different input voltages, in order to the indication input voltage.

Said indicator is an index dial, is installed on the main shaft, rotates synchronously with carbon brush, and how many angles brush arm rotates, and corresponding index dial also rotates same angle, and is provided with view window with the index dial opposite position on the case, is provided with scale mark on view window.

Said index dial is equipped with pad Guan Yuduan circle under it, brush arm connects, and is fastenedly connected by screw and main shaft; Index dial also can be installed on the in-line gears, in-line gears and the transmitting gear engagement that is installed on the main shaft; Index dial can also be installed in on the shaft pulley, is connected with rotor wheel on being installed in main shaft.

The utility model has following advantage than conventional art: simple in structure, there are not the complicacy and the accuracy of common indicating instrument, and can directly reflect the position of carbon brush, so also can do to monitor and use.

Further describe below in conjunction with accompanying drawing.

Fig. 1 is the electric schematic circuit of automatic voltage regulator.

Fig. 2 is that this practicality is newly with novel structural drawing.

Fig. 3 is a vertical view of the present utility model.

With reference to Fig. 1, the contact automatic voltage regulator is actually an auto-transformer, its output is a fixing tap in coil windings, therefore the circle number of turn of output and common port be fix and input is the carbon brush of a slip, when input voltage changes, for making output voltage keep constant, must make slip carbon brush current collector position, change the circle number of turn. As shown, automatic voltage regulator can be set up following relational expression as an ideal transformer:

$\frac{V_{}}{V_{}}＝\frac{N_1}{{\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="942087720\_DRIMG2.png"\; state="\{\{state\}\}">N</figure-callout>}}_2}{\mathrm{,\; <figure-callout\; id="1"\; label="N"\; filenames="942087720\_DRIMG2.png"\; state="\{\{state\}\}">N</figure-callout>}}_1=\frac{N_2}{V_{}}{\mathrm{·\; V}}_{}$

V wherein_Enter---input voltage, V_{Go out}Output voltage,

N ₁---import slip carbon brush end to the common port circle number of turn,

N ₂---output is to the circle number of turn of common port.

Find out V from above-mentioned formula_{Go out}、N ₂Be constant constant, so N₁With V_EnterBe directly proportional, that is to say each V_EnterThe fixed position that a correspondence is all arranged is so just can reflect the magnitude of voltage of input from the position at carbon brush place.

With reference to Fig. 2, this is an embodiment, is structural drawing of the present utility model.Automatic voltage regulator is partly installed servomotor by line bag (12), its hollow, also can be designed to be placed on the outside, adds that transmission decelerating device constitutes, and at the main shaft (6) of transmission decelerating device brush arm (7) is housed, and carbon brush (8) is installed again on the brush arm (7).In order to observe the input voltage situation intuitively, on carbon brush (8), mechanically be connected with indicator, carbon brush is indicated because of the pairing diverse location of different input voltages, in order to the indication input voltage.Show a kind of scheme on figure, adopt dish at quarter (2) to make indicator, be installed on the main shaft (6), rotate synchronously with carbon brush (8), promptly how many angles brush arm (7) rotates, and how many angles corresponding index dial (2) also rotates.Case (9) is arranged on this automatic voltage regulator, be provided with view window (1) with index dial (2) opposite position on it, on view window (1), be provided with scale mark (10) (shown in Fig. 2).This automatic voltage regulator, whole device have case (9) and box plate (11) to contain outward.For index dial (2) being installed on main shaft (6), there is pad pipe (4) to be connected with brush arm (7) under it with end circle (5), this is the needs of levelling position.Then, with screw (3) index dial (2) and main shaft (6) are fastenedly connected.

Index dial (2) also can be installed on the in-line gears, on the in-line gears be installed on the transmission gear on the main shaft (6), mesh with the transmission gear that is installed on the main shaft (6) on the in-line gears, main shaft (6) drives transmission gear once rotating like this, drive in-line gears then, make index dial (2) rotate same angle together.This is another embodiment.

Index dial (2) can also be installed in on the shaft pulley, and this belt pulley is connected with power wheel on the main shaft (6).How many angles main shaft (6) rotates, and then makes belt pulley rotate how many angles by power wheel by belt gear, thereby how many angles index dial (2) also rotates.This is another embodiment.

In order to make view window (1) obviously directly perceived, adopt transparent material such as glass or organic glass to make.Scale mark (10) is provided with for rotational angle gone up by display scale dish (2).Indicator of the present utility model is made up of the transparent windows (1) of index dial (2) and band scale mark (10), and when the input of automatic voltage regulator changed, carbon brush (8) rotated thereupon and changes input coil number of turn N ₁, index dial (2) and then rotates, and the angle of its rotation is differentiated by scale mark (10), can be expressed as output voltage and reads, and can monitor the ruuning situation of pressure regulator simultaneously.When especially electric or mechanical fault appear in automatic voltage regulator, it is motionless usually to be reflected as carbon brush (8), or carbon brush (8) is fixed on circle number of turn maximum or minimum position, and the utility model can pass through the position that view window (1) directly reflects carbon brush, has just reflected that also the most common failure of automatic voltage regulator is used to do to monitor.

Claims (4)

1, there is the automatic voltage regulator of input voltage indicator to constitute by line bag (12), servomotor and transmission decelerating device, brush arm (7) is housed on the main shaft of reduction gear, carbon brush (8) is installed on the brush arm (7), it is characterized in that on main shaft (6), also being equipped with the indicator that rotates synchronously with carbon brush (8), upward and on the indicator opposite position be provided with view window (1) at case (9), view window (1) is provided with scale mark (10).

2, according to the said automatic voltage regulator of claim 1, it is characterized in that said indicator is index dial (2), pad pipe (4) is housed under it is connected, and have screw (3) and main shaft (6) to be fastenedly connected with end circle (5), brush arm (7); Index dial (2) also can be installed on the in-line gears, in-line gears and the transmission gear engagement that is installed on the main shaft (6); Index dial (2) can also be installed in on the shaft pulley, is connected with power wheel on being installed in main shaft (6).

3,, it is characterized in that whole device has case (9) and box plate (11) to contain outward according to claim 1 or 2 said automatic voltage regulators.

4,, it is characterized in that view window (1) makes with transparent material such as glass or organic glass according to claim 1 or 2 said automatic voltage regulators.

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