CN2136994Y

CN2136994Y - Detecting instrument for high-pressure chamber of copier

Info

Publication number: CN2136994Y
Application number: CN 92237580
Authority: CN
Inventors: 韩昌盛
Original assignee: No83622 Units Of Pla
Current assignee: No83622 Units Of Pla
Priority date: 1992-10-28
Filing date: 1992-10-28
Publication date: 1993-06-23
Anticipated expiration: 2002-10-28

Abstract

The utility model relates to a detecting instrument for the high-voltage chamber of a copier, being designed for dynamically detecting the of single starting up and powering on when the high-voltage chamber of the copier is separated from a host computer. The utility model is composed of a control circuit, a detection converting circuit and a power supply, and is characterized in that in alternating current and direct current high-voltage measurements, detection connecting lines JB1-5 are connected with the output lines JA1-5 of the high-pressure chamber; an HD1 and an HD2 in the JB1-5 are two sets of direct current high-voltage detecting heads, an HA1 and an HA2 are two sets of alternating current high-voltage detecting heads, an R1-an R4 are the dummy resistors of the high-pressure chamber, and an H1 (1-4) which is the switch of control relays J1-J4 is a four-way interlocking switch; a bias detector is connected with a resistor through a relay J5.

Description

Detecting instrument for high-pressure chamber of copier

The utility model belongs to duplicating machine high-pressure chamber detecting instrument, is specially adapted to the various AC and DC parameters that the duplicating machine maintenance personal checks, the calibration duplicating machine is exported, and also can measure the high pressure of other electronic equipment, and its sensing range is 0-15000V(P-P).

During duplicating machine work, its high-pressure chamber produces 5000 volts of (P-P) above high pressure of many groups, and be installed in the machine, detect extremely inconvenient, and certain danger arranged, the high pressure checkout equipment of duplicating machine manufacturer is mainly by import at present, adopt voltage, electric current to measure respectively, complex structure costs an arm and a leg, be unfavorable for promoting and produce, for general maintaining unit, can only carry out high-pressure chamber by multimeter and measure at the machine partial parameters, can't calibrate each high voltage parameter, have a strong impact on duplicating machine quality and serviceable life, the major part processing of having to do to scrap.

The purpose of this utility model is the problem at above-mentioned existence, has designed a kind ofly can leave the duplicating machine high-pressure chamber detector that main frame starts, powers up detection of dynamic separately to the duplicating machine high-pressure chamber.

The utility model technical solution:

A kind of duplicating machine high-pressure chamber detector of being made up of control circuit, detection change-over circuit, power supply is characterized in that in the AC and DC high-tension measurement, detects line JB _1-5With high-pressure chamber output line JA _1-5Link to each other JB _1-5In HD ₁, HD ₂Be two groups of high direct voltage detection heads, HA ₁, HA ₂Be two groups of ac high-voltage probes, R ₁--R ₄Be the dummy resistance of high-pressure chamber, when detecting high-pressure chamber, as the load of high-pressure chamber, pilot relay J ₁--J ₄Switch be K _1(1-4), it is four interlock switchs, bias voltage passes through relay J ₅Link to each other with resistance.

Advantage of the present utility model:

The utility model is disembarked and is started and the comprehensive detection function, the every technical parameter of printer high-pressure chamber after this detector detects, calibrates can reach the requirement of new product, price is less than imported product 1/10th, cost is low, easy and simple to handle, practicality is big, is general duplicating machine maintenance personal's desirable maintenance device.

Fig. 1 is the utility model start detection schematic diagram of disembarking.

Fig. 2 is the utility model detecting device power circuit diagram.

Fig. 3 is that the utility model high pressure detects schematic diagram.

Fig. 4 is the utility model high-pressure chamber relay wiring figure.

Fig. 5 is the utility model relay wiring figure.

Fig. 6 is the utility model bias voltage decoding schematic diagram.

Fig. 7 is the utility model high-pressure chamber wiring diagram.

Below in conjunction with accompanying drawing the utility model is further described:

Power supply be for can debug constant voltage dc source, input voltage 220V ± 10%, output voltage 24V, Q ₁Be the overcurrent protection pipe, LM117HV is the three-terminal voltage-stabilizing integrated package, for enlarging output power, external power tube Q ₂, total output can reach 100W.

When detecting high-pressure chamber, the various edge connectoies that at first connect high-pressure chamber to be measured promptly: PA _1-7→ PB _1-7, JA _1-5→ JB _1-5, turn on the power switch K _AlwaysAnd K ₄, high-pressure chamber adds low-voltage supply, opens K again ₅The survey high-pressure chamber starts, and exports four groups of high pressure and one group of bias voltage.

1, K is pressed in the bias voltage measurement _2(1-5)Different keys position interlock switch then carries out different decoding to high-pressure chamber, and exportable corresponding duplicating machine is dense, dilution control voltage.Through J _5(1-4)Directly show the detection data to gauge outfit.

2, AC and DC high-tension measurement: JB _1-5In HD ₁, HD ₂Be two groups of high direct voltage detection heads, to the high pressure more than 5000 volts that high-pressure chamber produces decay, the step-down current limliting.HA ₁, HA ₂Be two groups of ac high-voltage probes, design one high-voltage rectification element in the probe, HA ₁, HA ₂It is the key element that detects high-voltage alternating.R ₁-R ₄Be the dummy resistance of high-pressure chamber, when detecting high pressure,, also prevent high-pressure chamber unloaded operation and the mutual interference of ac high-voltage phase as the load of high-pressure chamber.Pilot relay J ₁-J ₄Switch be K ₁, it is four interlock switchs, for example when detecting the charging extra-high voltage, then at first opens and detects switch K ₃, relay J ₅Action is opened passage for high pressure detects, and opens K again _1-1Switch, J ₁The actuating of relay, HD so ₁Detected high-voltage signal is through J _1(6-7), J _5(7-6), J _5(1-3)Contact enters the indication gauge outfit.Can use HD respectively with quadrat method ₂, HA ₁, HA ₂Detect other several groups of high pressure, also removable probe arbitrarily detects other position high pressure.

Claims

1, a kind of duplicating machine high-pressure chamber detector of being made up of control circuit, detection change-over circuit, power supply is characterized in that in the AC and DC high-tension measurement, detects line JB _1-5With high-pressure chamber output line JA _1-5Link to each other JB _1-5In HD ₁, HD ₂Be two groups of high direct voltage detection heads, HA ₁, HA ₂Be two groups of ac high-voltage detection heads, R ₁--R ₄Be the dummy resistance of high-pressure chamber, when detecting high-pressure chamber, as the load of high-pressure chamber, pilot relay J ₁--J ₄Switch be K _{1 (1-4)}, it is four interlock switchs, bias voltage detects and passes through relay J ₅Link to each other with resistance.