CN203133253U

CN203133253U - Cell charging line monitoring device

Info

Publication number: CN203133253U
Application number: CN 201320084093
Authority: CN
Inventors: 林建阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-21
Filing date: 2013-02-21
Publication date: 2013-08-14
Anticipated expiration: 2023-02-21

Abstract

The utility model relates to a cell charging line monitoring device, comprising a charging line detection circuit, an AC under-voltage detection circuit and a one-chip microcomputer circuit. Output signals of the charging line detection circuit are transmitted to the one-chip microcomputer control circuit through a trigger circuit; output signals of the AC under-voltage detection circuit are transmitted to the one-chip microcomputer control circuit through a voltage comparison trigger circuit. Output signals of the one-chip microcomputer control circuit are transmitted to an RS 485 communication interface circuit. The cell charging line monitoring device employs AC and DC circuits to respectively collect AC and DC voltage signals; when power failure occurs, the one-chip microcomputer control circuit performs identification and determination; the results are transmitted to a computer terminal host through a system bus to display fault information and thereby to protect normal reliable operation of a power supply system.

Description

The battery charge line monitoring equipment

Technical field

The utility model relates to a kind of supervising device, particularly be a kind of battery charge line monitoring equipment.

Background technology

Ups power, EPS power supply are widely used in industry and commerce, and its inside is made up of charging circuit and battery etc., and the battery charge circuit is as to power supply DC charging interface unit, in case when breaking down, battery will lose charge function.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of battery charge line monitoring equipment is provided.

The technical scheme that its technical matters that solves the utility model adopts is: the battery charge line monitoring equipment, comprise the charging circuit testing circuit, exchange under-voltage testing circuit and single chip machine controlling circuit, the output signal of described charging circuit testing circuit is transferred to single chip machine controlling circuit through trigger circuit, the output signal of described interchange under-voltage testing circuit is transferred to single chip machine controlling circuit through voltage ratio than trigger circuit, and the output signal of described single chip machine controlling circuit sends to the RS485 communication interface circuit.

Described charging circuit testing circuit is gathered signal by the relay J 1 that the battery charge line output connects.

Described trigger circuit adopt photoelectrical coupler IC5.

Described interchange under-voltage testing circuit adopts voltage transformer (VT) LB to gather signal.

Described single chip machine controlling circuit adopts 89S52 single-chip microcomputer IC1.

Described RS485 communication interface circuit drives chip IC 3 transmission data messages by 75176 interfaces and is sent to the station terminal host computer.

By adopting above-mentioned technical scheme; the beneficial effects of the utility model are: the utility model adopts the AC and DC circuit to gather the AC and DC voltage signal respectively; when power fail takes place when; judge through single chip machine controlling circuit identification; reach the computer terminal main frame by system bus; show failure message, thus the normal reliable operation of protection power-supply system.

Description of drawings

Fig. 1 is frame assumption diagram of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

Embodiment

As shown in Figure 1 and Figure 2, battery charge line monitoring equipment of the present utility model, comprise charging circuit testing circuit 1, exchange under-voltage testing circuit 2 and single chip machine controlling circuit 3, the output signal of described charging circuit testing circuit 1 is transferred to single chip machine controlling circuit 3 through trigger circuit 11, the output signal of described interchange under-voltage testing circuit 2 is transferred to single chip machine controlling circuit 3 through voltage ratio than trigger circuit 21, and the output signal of described single chip machine controlling circuit 3 sends to RS485 communication interface circuit 31.

Described charging circuit testing circuit 1 is gathered signal by the relay J 1 that the battery charge line output connects, described trigger circuit 11 adopt photoelectrical coupler IC5, when the battery charge circuit normally connects, relay J 1 adhesive, the contact J1-1 of relay J 1 is also closed, photoelectrical coupler IC5 is in conducting state, its output terminal is low level, the 22nd end that this signal is input to 89S52 single-chip microcomputer IC1 also is low level state, after 89S52 single-chip microcomputer IC1 internal processor is judged, belong to normal condition, do not send control signal, when broken string takes place in charging circuit, relay J 1 not adhesive, the contact J1-1 of relay J 1 transfers normally open to by original closure, photoelectrical coupler IC5 is not because there being operating voltage, its inner triode is in cut-off state, be output as high level, the 22nd end that this signal is input to 89S52 single-chip microcomputer IC1 also is and drives chip IC 3 by 89S52 single-chip microcomputer IC1 to 75176 interfaces and send the driving command signal, after 75176 interfaces drive chip IC 3 decodings, reach the background terminal host computer by system bus, system software shows current fault status information.Thereby the normal reliable operation of protection power-supply system.

Described interchange under-voltage testing circuit 2 adopts voltage transformer (VT) LB to gather signal; when the primary side of voltage transformer (VT) LB has the AC220V input; its secondary output 2.2V; when the elementary input voltage of voltage transformer (VT) LB is lower than 130V; its secondary output end output 1.3V; through diode D1 rectification; resistance R 2 current limlitings; after signals such as capacitor C 3 filtering are handled; be connected to the 3rd pin of voltage comparator ic 6; when the 3rd pin of voltage comparator ic 6 is lower than its 2nd pin current potential; the 1st pin output voltage signal of voltage comparator ic 6; this moment, the current potential of A1 was lower than the 2nd pin current potential of voltage comparator ic 6; so voltage comparator ic 6 internal comparator circuit upset; the output high level signal makes photoelectrical coupler IC2 conducting be low level output; the 36th pin I/O end that this signal is input to 89S52 single-chip microcomputer IC1 also is low level state; after the internal processor identification of 89S52 single-chip microcomputer IC1; drive chip IC 3 by 89S52 single-chip microcomputer IC1 to 75176 interfaces and send the driving command signal; after 75176 interfaces drive chip IC 3 decodings; reach the background terminal host computer by system bus; system software shows current fault status information, thus the normal reliable operation of protection power-supply system.

Above-described only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.

Claims

1. battery charge line monitoring equipment, it is characterized in that: comprise charging circuit testing circuit (1), exchange under-voltage testing circuit (2) and single chip machine controlling circuit (3), the output signal of described charging circuit testing circuit (1) is transferred to single chip machine controlling circuit (3) through trigger circuit (11), the output signal of described interchange under-voltage testing circuit (2) is transferred to single chip machine controlling circuit (3) through voltage ratio than trigger circuit (21), and the output signal of described single chip machine controlling circuit (3) sends to RS485 communication interface circuit (31).

2. battery charge line monitoring equipment according to claim 1 is characterized in that: the relay J 1 collection signal that described charging circuit testing circuit (1) is connected by the battery charge line output.

3. battery charge line monitoring equipment according to claim 1 and 2 is characterized in that: described trigger circuit (11) employing photoelectrical coupler IC5.

4. battery charge line monitoring equipment according to claim 1 is characterized in that: described interchange under-voltage testing circuit (2) employing voltage transformer (VT) LB collection signal.

5. battery charge line monitoring equipment according to claim 1 is characterized in that: described single chip machine controlling circuit (3) employing 89S52 single-chip microcomputer IC1.

6. battery charge line monitoring equipment according to claim 1 is characterized in that: described RS485 communication interface circuit (31) drives chip IC 3 by 75176 interfaces and sends data messages and be sent to the station terminal host computer.