CN204374400U - Accumulator monitoring equipment Alignment frock - Google Patents

Abstract

The utility model relates to a kind of calibrating installation, be specifically related to a kind of accumulator monitoring equipment Alignment frock, comprise power supply, insulating power supply module, reference voltage source module and pin terminal J1, J2, J3, J4, power supply is by pin terminal J3 and pin terminal J4 and insulating power supply model calling, and insulating power supply module is electrically connected with reference voltage source module; The utility model structure is simple, cost is lower, can easily realize, to the high low side calibration of accumulator monitoring equipment simulating amount monomer voltage, judging whether the voltage acquisition precision of accumulator monitoring equipment reaches requirement, has significant effect to the monitoring and maintenance of our storage batteries of transformer substation.

Description

Battery monitoring equipment calibration tooling

technical field

The utility model relates to a calibration device, in particular to a calibration tool for storage battery monitoring equipment.

Background technique

With the development of science and technology, batteries have been widely used in various fields, bringing a lot of convenience to our life. Especially in the substation, the battery, as the backup energy of the substation, has become an indispensable part of the DC system. When the AC power fails, the battery can quickly provide energy to the accidental load to avoid accidents.

In practical applications, the frequency of battery failure is very high. Since the battery packs are used in series, when one of the batteries fails, the entire battery pack will be in a paralyzed state; therefore, the monitoring and maintenance of the battery packs is very important. Similarly, the battery monitoring equipment and calibration tooling also need to attract our attention; for the calibration of the voltage acquisition unit of the battery monitoring equipment, the traditional calibration tooling has the problems of inaccurate calibration, poor stability and safety, which will affect the battery monitoring equipment. The acquisition accuracy of the battery will have a huge impact, which will easily cause a misjudgment of the performance of the battery and bring serious losses to the substation.

Utility model content

In order to solve the deficiencies in the above technical problems, the purpose of this utility model is to provide a battery monitoring equipment calibration tool, which can realize accurate, fast, safe and reliable calibration of the battery monitoring equipment voltage acquisition unit.

The technical scheme that the utility model adopts for solving its technical problem is:

Calibration tooling for battery monitoring equipment, including power supply, isolated power module, reference voltage source module and pin terminals J1, J2, J3, J4. The power supply is connected to the isolated power module through pin terminal J3 and pin terminal J4, and the isolated power module is connected to the The reference voltage source module is electrically connected.

The isolated power supply module mainly plays the role of isolation, voltage stabilization, and positive and negative dual output DC-DC; the reference voltage source module adopts a series voltage stabilization circuit, and provides a voltage reference during calibration; pin terminal J1 and pin terminal J2 pass through The voltage acquisition line is connected with the voltage acquisition unit of the battery monitoring equipment, and transmits the reference voltage to the voltage acquisition unit in the battery monitoring equipment; pin terminal J3 and pin terminal J4 provide input voltage to the isolated power supply module.

Further preferably, the basic circuit modules of the battery monitoring equipment calibration tool are as follows, three parallel branches are connected between the 1 pin of the isolated power supply module and the 2 pins of the isolated power supply module, respectively, the resistor R6 and the light emitting diode LED1 are connected in series The branch of the capacitor C5 and the pin terminal J3 are connected in parallel, and the branch of the capacitor C6 and the pin terminal J4 is connected in parallel; the 2 pins of the isolated power module are grounded, the 3 pins of the isolated power module are connected to the isolated power module There are 2 parallel branches connected between the 5 pins, which are the parallel branch of the resistor R4 and the capacitor C3, and the series branch of the resistor R1 and the inductor L1 connected in series and then together with the parallel circuit of the capacitor C1 and the capacitor C2; the resistor The parallel circuit of R5 and capacitor C4 is connected between pin 4 of the isolated power module and pin 5 of the isolated power module; pin 3 of the reference voltage source module is connected to the common terminal of capacitor C1 and capacitor C2, and resistor R2 is connected to At the common end of pin 1 of the reference voltage source module and capacitor C1 and capacitor C2, resistor R3 is connected between pin 1 of the reference voltage source module and pin 2 of the reference voltage source module, the reference voltage source module 2 pins to ground.

Further preferably, the circuit of the battery monitoring equipment calibration tool is a circuit in which 20 basic circuit modules of the battery monitoring equipment calibration tool are sequentially connected to provide 20 reference voltages.

Further preferably, the battery monitoring equipment calibration tool includes a battery high-end voltage monitoring equipment calibration tool and a battery low-end voltage monitoring equipment calibration tool, so as to realize accurate calibration of the battery monitoring equipment.

Further preferably, the isolated power supply module in the battery high-end voltage monitoring equipment calibration tool adopts IA1215KS-2W, and the reference voltage source module adopts TL431A. TL431A is a three-terminal adjustable shunt reference voltage source with good thermal stability. Its output voltage With two resistors, it can be arbitrarily set to any value from Vref (reference voltage 2.5V) to 36V. The input voltage of IA1215KS-2W is 12V, and the output is 15V, which provides power for some circuits and can realize the analog monomer The high end of the voltage is calibrated.

Further preferably, the isolated power supply module in the calibration tool for the battery low-end voltage monitoring equipment is IA1209KP-2W, and the reference voltage source module adopts TLV431ALP, which can realize the calibration of the low-end of the analog monomer voltage.

Further preferably, there are 10 connection jacks on the pin terminal J1 and the pin terminal J2 respectively, and can output different reference values.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model has simple structure and low cost, can easily realize the high and low end calibration of the analog monomer voltage of the battery monitoring equipment, judge whether the voltage acquisition accuracy of the battery monitoring equipment meets the requirements, and has a significant effect on the monitoring and maintenance of our substation battery effect.

Description of drawings

Fig. 1 principle block diagram of the utility model;

Fig. 2 circuit diagram of the utility model.

Detailed ways

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

Example 1

As shown in Figure 1-2, the battery monitoring equipment calibration tooling described in this utility model includes a power supply, an isolated power supply module, a reference voltage source module and pin terminals J1, J2, J3, J4, and the power supply passes through the pin terminal J3 and the pin terminal The pin terminal J4 is connected to the isolated power module, and the isolated power module is electrically connected to the reference voltage source module. The reference voltage source module is connected to the voltage acquisition unit of the battery monitoring equipment through the pin terminal J1 and pin terminal J2. To the role of isolation, voltage stabilization, and positive and negative dual output DC-DC; the reference voltage source module adopts a series voltage stabilization circuit, and provides a voltage reference during calibration; pin terminal J3 and pin terminal J4 provide input for the isolated power supply module Voltage.

Among them, the basic circuit module of the battery monitoring equipment calibration tool is as follows. There are 3 parallel branches connected between the 1 pin of the isolated power module and the 2 pin of the isolated power module, which are respectively the series connection of the resistor R6 and the light emitting diode LED1. Branch, capacitor C5 is connected in parallel with pin terminal J3, and capacitor C6 is connected in parallel with pin terminal J4; pin 2 of the isolated power module is grounded, pin 3 of the isolated power module is connected to pin 5 of the isolated power module There are two parallel branches connected between the pins, which are the parallel branch of the resistor R4 and the capacitor C3, the series branch of the resistor R1 and the inductor L1 in series and then the parallel circuit of the capacitor C1 and the capacitor C2; the resistor R5 The parallel circuit with capacitor C4 is connected between pin 4 of the isolated power module and pin 5 of the isolated power module; pin 3 of the reference voltage source module is connected to the common terminal of capacitor C1 and capacitor C2, and resistor R2 is connected to Pin 1 of the reference voltage source module and the common end of capacitor C1 and capacitor C2, resistor R3 is connected between pin 1 of the reference voltage source module and pin 2 of the reference voltage source module, and 2 pins of the reference voltage source module The pin is grounded; the circuit of the battery monitoring equipment calibration tool is a circuit in which 20 basic circuit modules of the battery monitoring equipment calibration tool are connected in sequence, providing 20 reference voltages; the battery monitoring equipment calibration tool includes the battery high-end voltage monitoring equipment calibration tool and the battery low voltage Calibration tooling for terminal voltage monitoring equipment to achieve accurate calibration of battery monitoring equipment; the isolated power supply module in the calibration tooling for battery high-end voltage monitoring equipment adopts IA1215KS-2W, and the reference voltage source module adopts TL431A. TL431A is a good thermal stability Three-terminal adjustable shunt reference voltage source, its output voltage can be arbitrarily set to any value from Vref (reference voltage 2.5V) to 36V with two resistors, IA1215KS-2W input voltage is 12V, output 15V, Provide power for some circuits, which can realize the high-end calibration of the analog monomer voltage; there are 10 wiring jacks on the pin terminal J1 and pin terminal J2 respectively, which can output different reference values.

Example 2

On the basis of Example 1, the isolated power module in the calibration tool for the battery low-end voltage monitoring equipment is IA1209KP-2W, and the reference voltage source module adopts TLV431ALP, which can realize the calibration of the low-end of the analog monomer voltage.

Concrete use process of the present utility model:

When in use, connect the power supply through pin terminal J3 and pin terminal J4 to provide input voltage to the isolated power module, and the isolated power module provides power for some circuits. Pin terminal J1 and pin terminal J2 communicate with the battery monitoring equipment through the voltage acquisition line The voltage acquisition unit is connected, the reference voltage is transmitted to the voltage acquisition unit, the voltage acquisition unit transmits the data to the PC, and the calibration is performed through the PC and the voltage accuracy value.

Claims (7)

1. an accumulator monitoring equipment Alignment frock, it is characterized in that, comprise power supply, insulating power supply module, reference voltage source module and pin terminal J1, J2, J3, J4, power supply is electrically connected with reference voltage source module with insulating power supply model calling insulating power supply module by pin terminal J3 and pin terminal J4.

2. accumulator monitoring equipment Alignment frock according to claim 1, it is characterized in that, the basic circuit module of accumulator monitoring equipment Alignment frock is as follows, 3 branch roads in parallel are connected with between 1 pin of insulating power supply module and 2 pins of insulating power supply module, be respectively the branch road that resistance R6 connects mutually with LED 1, the branch road that electric capacity C5 is in parallel with pin terminal J3, and the branch road that electric capacity C6 is in parallel with pin terminal J4; 2 pin ground connection of insulating power supply module, 2 branch roads in parallel are connected with between 3 pins of insulating power supply module and 5 pins of insulating power supply module, be respectively the branch road that resistance R4 is in parallel with electric capacity C3, the series arm that resistance R1 is formed together with electric capacity C2 parallel circuit with electric capacity C1 after connecting with inductance L 1 again; The parallel circuit of resistance R5 and electric capacity C4 is connected between 4 pins of insulating power supply module and 5 pins of insulating power supply module; 3 pins of reference voltage source module are connected with the common port of electric capacity C2 with electric capacity C1, resistance R2 is connected to 1 pin of reference voltage source module and the common port of electric capacity C1 and electric capacity C2, resistance R3 is connected between 1 pin of reference voltage source module and 2 pins of reference voltage source module, 2 pin ground connection of described reference voltage source module.

3. accumulator monitoring equipment Alignment frock according to claim 1, is characterized in that, the circuit of accumulator monitoring equipment Alignment frock is the circuit that the basic circuit module of 20 accumulator monitoring equipment Alignment frocks connects successively.

4. accumulator monitoring equipment Alignment frock according to claim 1, is characterized in that, accumulator monitoring equipment Alignment frock comprises accumulator high-end voltage monitoring equipment Alignment frock and accumulator lower terminal voltage monitoring equipment calibration tool.

5. accumulator monitoring equipment Alignment frock according to claim 4, is characterized in that, the insulating power supply module in accumulator high-end voltage monitoring equipment Alignment frock adopts IA1215KS-2W, and reference voltage source module adopts TL431A.

6. accumulator monitoring equipment Alignment frock according to claim 4, is characterized in that, the insulating power supply module in accumulator lower terminal voltage monitoring equipment calibration tool is IA1209KP-2W, and reference voltage source module adopts TLV431ALP.

7. accumulator monitoring equipment Alignment frock according to claim 1, is characterized in that, pin terminal J1 and pin terminal J2 has respectively 10 patch jacks.