CN2784883Y

CN2784883Y - Floating type voltage and temperature monitoring probe for accumulator battery

Info

Publication number: CN2784883Y
Application number: CN 200520033229
Authority: CN
Inventors: 陈尚松
Original assignee: GUILIN ELECTRONIC INDUSTRY COLLEGE
Current assignee: GUILIN ELECTRONIC INDUSTRY COLLEGE
Priority date: 2005-02-04
Filing date: 2005-02-04
Publication date: 2006-05-31
Anticipated expiration: 2015-02-04

Abstract

The utility model relates to an earth floating type voltage and temperature monitoring probe for an accumulator group. The utility model is formed by the connection of a block box of a thick film integrated circuit, joint heads of an anode and a cathode of a probe, an output port on the block box of the thick film integrated circuit, an input port on the block box of the thick film integrated circuit and a wire with four cores. The block box of the thick film integrated circuit is composed of a conditioning module, a measuring module, an earth floating module and a power supply module. The joint heads of the anode and the cathode of the probe are connected to an anode and a cathode of a single battery of an accumulator group; the probes are connected in series by the wire with four cores according to a topological structure to be connected to a monitor of a monitoring system and are connected with a monitoring center through a signal channel, failure batteries are monitored and the voltage and the temperature of the failure batteries are beyond threshold value. The probe having the function of a sensor has the advantages that the volume is small, the wire distribution is terse when the utility model is in use, the digitization is realized right away, the disturbing influence is small, the measuring data are accurate, the operation and the maintenance are simple and convenient, etc.

Description

Floating ground formula accumulator step voltage temperature monitoring probe

(1) technical field:

The utility model relates to a kind of sensor probe, particularly floating ground formula accumulator battery voltage temperature monitoring probe.

(2) background technology:

The base station of current all communications equipment rooms, mobile communication and generating plant, transformer station, the first-class place that needs DC power supply of train all need to dispose battery pack power supply in support.For preventing that the indivedual cells in the battery pack lost efficacy, and influence the normal power supply of whole battery pack, need monitor and judge the battery performance quality.Since battery pack be more piece (as 24 to 110 joints) cell (2 volts of voltages of every joint) is composed in series, realize must handling common ground problem well to the automatic measurement of the voltage temperature of each cell wherein.Currently used analog switch (as relay, integrated circuit switch) scheme, by saving the testing scheme etc. that adds up, all there are complex circuit in numeral or linear optical coupling isolation scheme altogether, poor reliability, precision is low, and shortcomings such as price height cause applying difficulty.

(3) utility model content:

The purpose of this utility model be to disclose that a kind of volume is little, wiring is succinct, in-situ digitalization, disturbing effect is little, measurement data is accurate, the floating ground formula accumulator battery voltage automatic temperature monitoring of simple and convenient operation and maintenance is popped one's head in.

Task of the present utility model is achieved in that

The utility model is by thick film integrated circuit piece box, probe just, anode connector, two output ports on the thick film integrated circuit piece box, two input ports be connected input port, the four-core electric wire of the monitor of output port and battery pack is formed, probe just, anode connector directly is connected on cell positive and negative extreme, in the four-core electric wire two are connected with two output ports of thick film integrated circuit piece box, in addition two are connected with input port, the four-core electric wire is together in series all probes with fixed number and is connected with monitor by topological structure, output port will float the digital signal on ground and deliver to monitor, from the input port input low-voltage alternating current power supply of monitor.

Described thick film integrated circuit piece box is made up of by the encapsulation of thick film integrated circuit form conditioning module, measurement module, floating ground module, power module, conditioning module is connected with measurement module with the positive and negative connector of probe respectively, measurement module is connected with floating ground module, floating ground module is connected with output port, and power module joins with input port, measurement module and floating ground module respectively.Conditioning module can be provided with tested voltage range (as 2,6,12 volts etc.); Measurement module is a large scale integrated circuit, can be digital signal with the voltage transitions of tested battery, simultaneously, can measure the temperature on the battery electrode column, and also be converted to digital signal; Float the ground module, the digital signal conversion of voltage and temperature is exported for floating ground form; Power module is converted to direct supply with alternating current, provides working power to measurement module and floating ground module.

During use, floating ground formula battery tension temperature monitoring probe is applied among the automatic monitoring system of battery pack, the positive and negative joint of popping one's head in is directly connected on the both positive and negative polarity of every joint cell in the battery pack, all probes are through the quad series connection and be connected to monitor, and channel is connected with the PC of Surveillance center again.Monitor is main the composition with the chip microprocessor, be placed on battery pack near, can under software program control, read the voltage of every batteries and the numerical value of temperature by the battery sequence number.Channel can be the Surveillance center that wired (as RS485, telephone wire, grid line etc.) or wireless (mobile phone, radio station) are sent to data in the strange land.The PC of Surveillance center can be under the software program effect, data are read processing, and can discharge and recharge etc. under the operation situation of change of recording voltage, thereby calculate the parameter such as capacity, internal resistance of every batteries, can discriminate out the dead battery that voltage temperature exceeds threshold value.

This probe that plays the sensor effect has volume little, succinct, the in-situ digitalization of wiring, series of advantages such as disturbing effect is little, measurement data is accurate, simple and convenient operation and maintenance when using.

(4) description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a circuit structure schematic diagram of the present utility model;

Fig. 3 is the connection diagram of the utility model and battery pack automatic monitoring system.

(5) embodiment:

When implementing the utility model, the firstth, the designing and manufacturing method of GPRS thick film circuit.Specifically, be to design and to match four modules (7), (8), (9), (10) among Fig. 2.Described conditioning module (7) is made up of hardware division circuit and low-pass filter circuit, and main effect is to adjust the measurement range of tested voltage and prevent the high frequency interference intrusion; Measurement module (8) is made up of large scale integrated circuit, mainly finishes the digitized measurement to voltage temperature.Can select SMD 12 bit resolution analog to digital converters (A/D) and digital temperature meter (measurement range-30 is to+120 ℃, and error is less than 0.5 ℃) for use; Floating ground module (9) is made up of special IC, can be the special difference mode signal output on floating ground with digital signal conversion over the ground; Power module (10) is that the low-voltage alternating current power supply rectifying and wave-filtering that monitor (11) is sent here is converted to dc voltage power supply, for measurement module (8) and floating ground module (9) provide working power.

The second, during actual the use, probe is placed monitoring system, positive terminal among Fig. 2 (2) is connected to the positive pole of tested battery, anode connector (3) is received negative pole.Again output port (4), input port (5) are connected in series through four-core electric wire (6) and other tested battery, place the automatic monitoring system of battery pack shown in Figure 3, each probe is gone the rounds reading by single-chip microcomputer in the monitor (11).For example can be designed to 1 minute touring detection one time, and data channel (12) is sent on Surveillance center's PC (13) in strange land, PC can read data, analyzing and processing, determines the performance quality of each battery.

Claims

1, a kind of floating ground formula accumulator battery voltage temperature monitoring probe, it is characterized in that: it is by thick film integrated circuit piece box (1), probe positive terminal (2), probe anode connector (3), two output ports (4) on the thick film integrated circuit piece box (1), two input ports (5), four-core electric wire (6) is formed, the positive and negative connector (2) of probe, (3) directly be connected on cell positive and negative extreme, in the four-core electric wire (6) two are connected with two output ports (4), in addition two are connected with input port (5), and four-core electric wire (6) is contacted all probes with fixed number and is connected with the monitor (11) of battery pack by topological structure.

2, floating ground according to claim 1 formula accumulator battery voltage temperature monitoring probe, it is characterized in that thick film integrated circuit piece box (1) is by conditioning module (7), measurement module (8), floating ground module (9), power module (10) is pressed the encapsulation of thick film integrated circuit form and is formed, conditioning module (7) respectively with the probe positive and negative connector (2) and (3), measurement module (8) connects, measurement module (8) joins with floating ground module (9), floating ground module (9) is connected with output port (4), power module (10) respectively with input port (5), measurement module (8), floating ground module (9) connects.