CN204515057U - A kind of tantalum capacitance short-circuit proving installation - Google Patents

Abstract

The utility model provides a kind of tantalum capacitance short-circuit proving installation, comprise pcb board and be arranged on the test cell on pcb board, described test cell comprises testing capacitance, indicating device, discharge diode and current-limiting resistance, after the series connection of described testing capacitance, indicating device and current-limiting resistance between serial connection and power positive cathode, described discharge diode is in parallel with indicating device and current-limiting resistance; This device of the utility model compensate for that measuring equipment speed is slow, false failure rate this shortcoming high; Do not need to drop into special measuring equipment, testing procedure is simple, not only reduces equipment investment cost, significantly increases work efficiency, and reduces production cost, and can effectively avoid surveying by mistake, improves the reliability of appearance product.

Description

A tantalum capacitor short-circuit test device

technical field

The utility model relates to the technical field of tantalum capacitor production, in particular to a tantalum capacitor short-circuit testing device.

Background technique

Measurement process The current automatic measurement device is mainly used to test the electrical parameters of capacitors such as leakage current, capacity, loss, and ESR. If the equipment detects that the parameters do not meet the standards, it will automatically reject the unqualified products. The advantage of this equipment is that it has a wide range of testing and a high degree of automation. The disadvantage is that the speed is slow and the false detection rate is high. When encountering urgent orders, it is often impossible to meet the production requirements of the workshop. Therefore, I made a device that independently measures whether the capacitor is short-circuited or not. The operator can quickly eliminate the short-circuited products through this device, and the reliability is very high.

Utility model content

In order to solve the above technical problems, the utility model provides a tantalum capacitor short-circuit testing device.

The utility model is realized through the following technical solutions.

The utility model provides a tantalum capacitor short-circuit test device, comprising a PCB board and a test unit arranged on the PCB board, the test unit includes a capacitor to be tested, an indicating device, a discharge diode and a current-limiting resistor, and the capacitor to be tested , the indicating device and the current limiting resistor are connected in series between the positive and negative poles of the power supply, and the discharge diode is connected in parallel with the indicating device and the current limiting resistor.

The indicating device is a light emitting diode.

The number of the test units installed on the PCB is 1-10.

The beneficial effects of the utility model are: the device makes up for the shortcomings of slow measurement equipment and high mismeasurement rate; it does not need to invest in special measurement equipment, and the test steps are simple, which not only reduces equipment investment costs, greatly improves work efficiency, and reduces Production costs, and can effectively avoid mistesting and improve the reliability of products on the market.

Description of drawings

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

In the figure: 1-test unit, 11-capacitor to be tested, 12-indicating device, 13-discharging diode, 14-current limiting resistor, 2-PCB board.

Detailed ways

The technical solution of the utility model is further described below, but the scope of protection is not limited to the description.

A kind of tantalum capacitor short-circuit testing device as shown in Figure 1, comprises PCB board 2 and is arranged on the test unit 1 on PCB board 2, and described test unit 1 comprises to-be-tested capacitance 11, indicating device 12, discharge diode 13 and limiter The current resistance 14, the capacitor 11 to be tested, the indicating device 12 and the current limiting resistor 14 are connected in series between the positive and negative poles of the power supply, and the discharge diode 13 is connected in parallel with the indicating device 12 and the current limiting resistor 14. The indicating device 12 is a light emitting diode. The number of the test units 1 installed on the PCB 2 is 1-10.

In the actual test process, after the capacitor 11 to be tested is connected to the test unit 1, it is connected to the positive and negative poles of the power supply through the A terminal and the B terminal. If the capacitor 11 to be tested is a qualified product, the light-emitting diode will light up, and then Then gradually fade and go out; if the capacitor 11 to be tested is an unqualified product, the diode keeps emitting light, which means that the capacitor 11 to be tested is a short-circuit product and needs to be removed. After the measurement is completed, the discharge switch is pressed, and the discharge diode 13 on the circuit will automatically discharge, so that the capacitor 11 to be measured returns to the initial state.

The device makes up for the shortcomings of slow measurement equipment and high false detection rate; it does not need to invest in special measurement equipment, and the test steps are simple, which not only reduces equipment investment costs, greatly improves work efficiency, and reduces production costs.

Claims (3)

1. a kind of tantalum capacitance short-circuit testing device, it is characterized in that: comprise PCB board (2) and be arranged on the test unit (1) on PCB board (2), described test unit (1) comprises electric capacity to be measured (11) , indicating device (12), discharge diode (13) and current-limiting resistor (14), described capacitor to be measured (11), indicating device (12) and current-limiting resistor (14) are connected in series with the positive and negative poles of the power supply after being connected in series Between, the discharge diode (13) is connected in parallel with the indicating device (12) and the current limiting resistor (14). 2. The tantalum capacitor short-circuit testing device according to claim 1, characterized in that: the indicating device (12) is a light emitting diode. 3. The tantalum capacitor short-circuit test device according to claim 1, characterized in that: the number of the test units (1) installed on the PCB board (2) is 1-10.