TW202014717A - Floating type capacitor detection device and detection method thereof for performing a high voltage test by directly using air as insulation to comprehensively detect the quality characteristics of the tested capacitor - Google Patents

Abstract

The present invention relates to a floating type capacitor detection device and a detection method thereof. The floating type capacitor detection device comprises a management unit, a test controller, a second measurement module, a terminal module and a switching module. The test controller controls a first terminal and a second terminal of the terminal module to be simultaneously approached to and in electrical contact with a tested capacitor. The test controller controls the switching module according to a preset detection program so as to switch the first terminal and the second terminal to be electrically coupled to a first measurement module or a second measurement module of the test controller, thereby detecting a first characteristic parameter or a second characteristic parameter of the tested capacitor. The test controller controls the first terminal and the second terminal of the terminal module to be simultaneously away from the tested capacitor. Accordingly, with the present invention, it directly uses air as insulation for performing a high voltage test to comprehensively detect the quality characteristics of the tested capacitor.

Description

Floating type capacitance detection equipment and detection method

The invention relates to a floating capacitor detection device and a detection method thereof, in particular to a floating capacitor detection device and a detection method suitable for applying a high voltage test to a capacitor.

As the technology of electronic devices continues to evolve, and the size continues to become lighter, thinner and shorter, the application and demand of multilayer capacitors are also rising.

However, at present, most of the conventional testing equipments adopt rotary disk testing when performing high-voltage testing, which is not only limited to the working voltage test below 1000 volts, and after a period of testing, the multilayer capacitor under test will inevitably leave metal residues In the groove of the turntable, when accumulated to a certain amount, a short circuit may be formed, which may affect the accuracy of the detection, and even cause damage to the tested capacitor and the detection equipment. In addition, the conventional detection equipment cannot switch the parameters of the detection capacitor in real time, that is, it cannot comprehensively detect the characteristic parameters of the multilayer capacitor.

Therefore, the inventor has developed a floating type capacitance detection device and a detection method thereof, which can detect the multilayer capacitor with a floating floating detection mechanism and provide a switching mechanism for detecting the working conditions to effectively detect each of the multilayer capacitors Item characteristic parameters.

The main purpose of the present invention is to provide a floating capacitor detection device, which can float the tested capacitor in a floating manner, that is, directly use air as an insulation to conduct high voltage testing, and provide a switchable detection working condition mode Group structure to comprehensively and effectively detect the quality characteristics of the capacitor under test.

To achieve the above object, the present invention discloses a floating capacitor detection device for detecting at least one capacitor under test, wherein the device includes a management unit, a test controller, a second measurement module, and a terminal module And a switching module, and the test controller includes a processing unit and a first measurement module. The management unit is used to store a preset detection program and at least one detection parameter value. The test controller is electrically connected to the management unit and obtains a preset detection program and at least one detection parameter value. The first measurement module is used to measure the first characteristic parameter of at least one tested capacitor. The second measurement module is electrically connected to the processing unit and is used to measure the second characteristic parameter of at least one measured capacitance. The switching module is electrically connected to the test controller and the second measurement module. The terminal module is electrically connected to the switching module, and the terminal module includes a driving part, a first terminal and a second terminal. Wherein, the processing unit controls the driving part of the terminal module to drive the first terminal and the second terminal to simultaneously approach and electrically contact at least one tested capacitor; the processing unit controls the switching module according to a preset detection program to switch the first The terminal and the second terminal are electrically coupled to at least one of the first measurement module and the second measurement module, and then detect at least one of the first characteristic parameter or the second characteristic parameter of at least one measured capacitance; The processing unit controls the driving part of the terminal module to drive the first terminal and the second terminal to move away from the at least one tested capacitor at the same time and get out of electrical contact.

Another object of the present invention is to provide a floating capacitor detection method, so that the capacitor under test can be floated in a floating manner, that is, directly use air as an insulation to perform high voltage test steps, and provide switchable detection working conditions The test mode can comprehensively and effectively detect the quality characteristics of the capacitor under test.

In order to achieve the above object, the present invention provides a floating capacitance detection method, which is mainly applicable to a capacitance detection device, which includes a management unit, a test controller, a second measurement module, a terminal module and a switch Module, the test controller includes a first measurement module, and the terminal module includes a plurality of terminals; the method includes the following steps: (A) writing a preset detection program by the management unit; (B) testing the controller from the management unit Obtain the preset test program; (C) The multiple terminals of the control terminal module of the test controller simultaneously approach and electrically contact a tested capacitor; (D) The test controller controls the switching module according to the preset test program to switch the complex number The terminal is electrically coupled to at least one of the first measurement module and the second measurement module of the test controller, and further detects at least one of a first characteristic parameter and a second characteristic parameter of the capacitor under test; And (E) The plural terminals of the control terminal module of the test controller are at the same time far away from the tested capacitor and are out of electrical contact.

100‧‧‧Floating type capacitance testing equipment

1‧‧‧ management unit

2‧‧‧Test controller

20‧‧‧ processing unit

21‧‧‧ First measurement module

22‧‧‧Second measurement module

3‧‧‧terminal module

30‧‧‧Drive

31‧‧‧ First terminal

32‧‧‧Second terminal

33‧‧‧ drive motor

34‧‧‧ drive shaft

251‧‧‧The first chute

352‧‧‧Second chute

361a‧‧‧First guide arm

361b‧‧‧First Slide

362a‧‧‧Second guide arm

362b‧‧‧Second Slide

37‧‧‧Negative pressure nozzle

38‧‧‧Abutment

S1a, S1b, S2a, S2b ‧‧‧ node

4‧‧‧Switch module

41‧‧‧ First switching unit

42‧‧‧Second switching unit

5‧‧‧ Feeding module

200‧‧‧Method

(A)-(F)‧‧‧Step

Ps‧‧‧default detection program

Pt‧‧‧Detection parameter value

C‧‧‧ capacitance under test

FIG. 1 is a functional block diagram of a floating capacitor detection device according to a preferred embodiment of the present invention.

2A and 2B are respectively a top view and a side view of a terminal module according to a preferred embodiment of the present invention.

FIG. 2C is a schematic diagram showing the driving shaft, the first chute and the second chute in the terminal module according to a preferred embodiment of the present invention.

FIG. 3 is a functional schematic diagram of a switching module, a terminal module, a first measurement module, and a second measurement module according to a preferred embodiment of the present invention.

FIG. 4 is a flowchart showing the steps of a floating capacitor detection method according to a preferred embodiment of the present invention.

Before the floating capacitance detection device and detection method of the present invention are described in detail in this embodiment, it should be particularly noted that in the following description, similar elements will be denoted by the same element symbols. Furthermore, the drawings of the present invention are only for illustrative purposes, they are not necessarily drawn to scale, and all the details are not necessarily presented in the drawings.

Please refer to FIG. 1, which illustrates a functional block diagram of a floating capacitor detection device 100 according to a preferred embodiment of the present invention. As shown in the figure, a floating capacitor detection device 100 is used to detect at least one capacitor C under test (not shown in FIG. 1, please refer to FIGS. 2A and 2B for details), which includes a management unit 1 and a Test controller 2. However, the management unit 1 can be a personal desktop computer or a notebook computer, which is used to provide the user with a pre-stored preset test program Ps that can have a detection operation flow and a detection working voltage and current parameter value, and can also be stored in advance At least one detection parameter value Pt, for example, can be used to screen a comparison parameter table that classifies the quality characteristics of the capacitor C under test.

Secondly, the test controller 2 is electrically connected to the management unit 1, and can obtain the preset detection program Ps and the detection parameter value Pt from the management unit 1. The test controller 2 includes a processing unit 20 and a first measurement Module 21, wherein the processing unit 20 can provide the corresponding first operating voltage and current under the first detection condition according to the preset detection program to measure the first characteristic parameter of the measured capacitance C, which is used in this embodiment Among them, the first characteristic parameter includes the leakage current value (IL) and the insulation resistance (IR), wherein the leakage current value (IL) ranges from 0.1nA to 1mA, and the insulation resistance (IR) ranges from 10KΩ to 200TΩ.

Please continue to refer to FIG. 1, the floating capacitance detection device 100 also includes a second measurement module 22. The second measurement module 22 is electrically connected to the processing unit 20 in the test controller 2, and provides the corresponding second operating voltage and current under the second detection condition through the processing unit 20 according to a preset detection program, to The second characteristic parameter of the measured capacitance C is measured. In this embodiment, the second characteristic parameter includes an electrostatic capacitance value (C value) and a dielectric material attenuation coefficient (D value). Wherein, the first and second operating voltages provided under the first detection condition and the second detection condition can be from 10 volts to 10000 volts, however, the test conditions used in this embodiment are all loaded with high voltage.

However, after the detection process is completed, the processing unit 20 can transfer the first characteristic parameter and the second characteristic parameter obtained by the detection of the tested capacitor C to the management unit 1, and then perform another test on the tested capacitor C Detection. In addition, the processing unit 20 can not only transmit the detection data to the management unit 1 one by one, but the processing unit 20 can also take batch transmission to the management unit 1 according to the actual detection requirements.

At the same time, the processing unit 20 in the test controller 2 can also analyze and compare the detected test data such as the first characteristic parameter and the second characteristic parameter with the pre-stored detection parameter value Pt, so that The measured capacitance C is used to evaluate and judge the characteristic quality, and correspondingly generates a quality parameter. In this way, the distribution module 5 electrically connected to the test controller 2 can classify and concentrate the measured capacitance C according to the quality parameters.

In addition, the floating capacitance detection device 100 further includes a terminal module 3. The terminal module 3 is electrically connected to the test controller 2, and the terminal module 3 includes a driving part 30, a first terminal 31 and a second terminal 32. Thereby, the processing unit 20 in the test controller 2 can control the driving part 30 of the terminal module 3 according to the preset detection program Ps to drive the first terminal 31 and the second terminal 32 to approach or be away from the test at the same time The capacitance C determines whether it is in electrical contact with the capacitance C under test or out of electrical contact.

More specifically, please refer to FIGS. 2A to 2C synchronously, wherein FIGS. 2A and 2B are a top view and a side view of a terminal module according to a preferred embodiment of the present invention, and FIG. 2C is a comparison of the present invention. The schematic diagram of the driving shaft, the first chute and the second chute in the terminal module of the preferred embodiment. As shown in the figure, the driving part 30 in the terminal module 3 includes a driving motor 33 and a transmission shaft 34, and the transmission shaft 34 is connected to the driving motor 33. In addition, two ends of the transmission shaft 34 are respectively provided with a first inclined groove 351 and a second inclined groove 352 which are opposite to each other, wherein the extending direction of the groove rails of the first inclined groove 351 and the second inclined groove 352 are respectively a specific The angle (for example: 30 degrees to 60 degrees) and the central axis of the transmission shaft 34 constitute a mutual inclination.

Furthermore, the terminal module of this embodiment includes a base 38, a first slide 361b and a second slide 362b, a first guide arm 361a and a second guide arm 362a; the first slide 361b and the second slide base 362b are slide-mounted on the base 38 by way of guide rails and guide grooves, and the first terminal 31 and the second terminal 32 are respectively assembled on the first slider 361b and the second slider 362b, and are arranged to face each other. In addition, the driving unit 30 of this embodiment is also set on the base 38.

In addition, one ends of the first guiding arm 361a and the second guiding arm 362a are respectively connected to the first sliding seat 361b and the second sliding seat 362b, and the other ends are respectively slidably disposed in the first inclined groove 351 and the second inclined groove 352 . According to this, when the driving motor 33 drives the transmission shaft 34 to rotate in a first rotation direction, the first inclined groove 351 and the second inclined groove 352 drive the first through the first guide arm 361a and the second guide arm 362a, respectively The slider 361b and the second slider 362b approach toward each other, and synchronously and electrically contact the measured capacitor C attracted by a negative pressure suction nozzle 37, so that the test can be started. On the other hand, when the driving motor 33 drives the transmission shaft 34 to rotate in a second rotation direction, the first inclined groove 351 and the second inclined groove 352 are driven by the first guide arm 361a and the second guide arm 362a, respectively The first slider 361b and the second slider 362b are away from the measured capacitance C toward each other.

Please continue to refer to FIG. 1 and FIG. 3 synchronously, wherein FIG. 3 is a schematic diagram illustrating the switching module, the terminal module, the first measurement module, and the second measurement module of a preferred embodiment of the present invention. As shown in the figure, the floating capacitance detection device 100 includes a switch module 4, and the switch module 4 is electrically connected to the test controller 2, the second measurement module 22 and the terminal module 3. Thereby, the processing unit 20 in the test controller 2 can control the switching module 4 according to the preset detection program to switch the first terminal 31 and the second terminal 32 to be electrically coupled to the first measurement module 21 in sequence And the second measurement module 22, and then detect the first characteristic parameter or the second characteristic parameter of the measured capacitor C under the first detection condition and the second detection condition, respectively.

Furthermore, in this embodiment, the switching module 4 includes a first switching unit 41 and a second switching unit 42. When the processing unit 20 controls the switching module 4 to switch to detect the first characteristic parameter according to the preset detection program, the first switching unit 41 will switch to the node S1a, and the second switching unit 42 also switches to the node S1b to establish The data transmission connection channel is between the first measurement module 21 and the terminal module 3, even if the first terminal 31 and the second terminal 32 can be electrically coupled to the first measurement module 21, and the resulting The detection data (for example: leakage current value (IL) and insulation resistance (IR)) is transmitted to the first measurement module 21.

In contrast, when the processing unit 20 controls the switching module 4 to switch to detect the second characteristic parameter according to the preset detection program, the first switching unit 41 will switch to the node S2a, and the second switching unit 42 will also switch to the node S2b to Establish a data transmission connection channel between the second measurement module 22 and the terminal module 3, that is, the first terminal 31 and the second terminal 32 can be electrically coupled to the second measurement module 22, and the resulting The detection data (for example: the capacitance value (C value) and the dielectric material attenuation coefficient (D value)) are transmitted to the second measurement module 22.

Please refer to FIG. 4, which is a flowchart illustrating the steps of the floating capacitor detection method 200 according to a preferred embodiment of the present invention. As shown in the figure, a floating capacitor detection method 200, which is mainly applicable to the floating capacitor detection device 100 and its main components in the above embodiment, includes a management unit 1, a test controller 2, and a second measurement The module 22, the terminal module 3, and the switching module 4, and the test controller 2 includes a first measurement module 21, and the terminal module 3 includes a first terminal 31 and a second terminal 32.

First, the method 200 provides the user to write a preset detection program and set at least one detection parameter value through the management unit 1 in the writing and setting step (A). Next, the method 200 in the acquisition step (B) causes the test controller 2 to extract the preset detection program and the detection parameter values from the management unit 1 to perform the pre-detection operation.

Furthermore, in the approaching contacting step (C), the method 200 causes the test controller 2 to control the first terminal 31 and the second terminal 32 of the terminal module 3 to approach the test subject to the suction nozzle 37 at the same time. On both sides of the capacitor C, the first terminal 31 and the second terminal 32 are in electrical contact. Secondly, in the parameter detection step (D), the method 200 first performs a Kelvin test or a 4-wire test, that is, whether the first terminal 31 and the second terminal 32 are in contact with each other through a contact test The electrode end face of the tested capacitor C is in complete contact and constitutes conduction, which can fully avoid the test failure caused by poor contact.

Furthermore, the test controller 2 controls the switching module 4 according to the preset detection program, and adjusts the detection data transmission path of the first switching unit 41 and the second switching unit 42 to connect the first terminal 31 and the second terminal 32 The two simultaneously switch the first measurement module 21 and the second measurement module 22 electrically coupled to the test controller 2 in sequence, and then perform the test under the first detection condition and the second detection condition, respectively A first characteristic parameter and a second characteristic parameter of the capacitor C.

However, after the detection of the first characteristic parameter and the second characteristic parameter of the tested capacitor C is completed, the method 200 proceeds to step (E), even if the test controller 2 controls the terminal module 3 to drive the first terminal 31 and The second terminal 32 is away from both sides of the tested capacitor C at the same time, and the negative pressure suction nozzle 27 releases the tested capacitor C by releasing the negative pressure.

In addition, the method 200 may further include a quality determination step (F), which is based on the first characteristic parameter and the second characteristic parameter to be detected in the aforementioned parameter detection step (D) and the aforementioned writing and setting step (A). The predetermined detection parameter value is compared with the analysis to generate a quality parameter correspondingly, and then the classification is concentrated. In addition, in the quality determination step (F), the method 200 can also drive the test controller 2 to transmit the first characteristic parameter and the second characteristic parameter to the management unit 1.

The above embodiments are only examples for the convenience of description, and the scope of rights claimed by the present invention should be subject to the scope of the patent application, and not limited to the above embodiments.

100‧‧‧Floating type capacitance testing equipment

1‧‧‧ management unit

2‧‧‧Test controller

20‧‧‧ processing unit

21‧‧‧ First measurement module

22‧‧‧Second measurement module

3‧‧‧terminal module

30‧‧‧Drive

31‧‧‧ First terminal

32‧‧‧Second terminal

4‧‧‧Switch module

5‧‧‧ Feeding module

Ps‧‧‧default detection program

Pt‧‧‧Detection parameter value

Claims (10)

A floating capacitor detection device for detecting at least one capacitor under test. The device includes: a management unit for storing a preset detection program and at least one detection parameter value; a test controller electrically connected to the management The unit also obtains the preset detection program and the at least one detection parameter value. The test controller includes a processing unit; and a first measurement module for measuring the first characteristic parameter of the at least one tested capacitor; A second measurement module electrically connected to the processing unit for measuring the second characteristic parameter of the at least one tested capacitor; a switching module electrically connected to the test controller and the second measurement Module; and a terminal module, electrically connected to the switching module, the terminal module includes a driving part, a first terminal and a second terminal; wherein, the processing unit controls the driving part of the terminal module To drive the first terminal and the second terminal to approach and electrically contact the at least one tested capacitor at the same time; the processing unit controls the switching module according to the preset detection program to switch the first terminal and the second terminal The terminal is electrically coupled to at least one of the first measurement module and the second measurement module, and further detects at least one of the first characteristic parameter or the second characteristic parameter of the at least one measured capacitance The processing unit controls the driving part of the terminal module to drive the first terminal and the second terminal to move away from the at least one tested capacitor at the same time and get out of electrical contact. The floating capacitance detection device according to claim 1, wherein the first characteristic parameter includes a leakage current value and an insulation resistance, and the second characteristic parameter includes an electrostatic capacitance value and a dielectric material attenuation coefficient. The floating capacitance detection device of claim 1, wherein the processing unit transmits the first characteristic parameter and the second characteristic parameter to the management unit. As in the floating capacitor detection device of claim 1, wherein the processing unit analyzes and compares the first characteristic parameter and the second characteristic parameter detected for the at least one tested capacitor with the at least one detection parameter value, A quality parameter is generated correspondingly. The floating capacitor detection device according to claim 4 further includes a material distribution module, which is electrically connected to the test controller and used to classify the at least one capacitor under test according to the quality parameter. The floating capacitance detection device according to claim 1, wherein the terminal module includes a base, a first slider, and a second slider; the first slider and the second slider are slidably disposed on On the base, the first terminal and the second terminal are respectively set on the first slide and the second slide; the driving part is set on the base, and the driving part drives the first slide Synchronously approach or move away from each other with the second slide. The floating capacitance detection device according to claim 6, wherein the terminal module further includes a first guide arm and a second guide arm, and the drive unit includes a drive motor and a transmission shaft, the transmission shaft Connected to the drive motor, the two ends of the transmission shaft are respectively provided with a first inclined groove and a second inclined groove opposite to each other; one ends of the first guide arm and the second guide arm are respectively connected to the first One slider and the second slider, the other end is divided Do not slide on the first chute and the second chute; wherein, when the driving motor drives the transmission shaft to rotate in a first rotation direction, the first chute and the second chute are respectively through the The first guide arm and the second guide arm drive the first slider and the second slider toward each other; when the drive motor drives the transmission shaft to rotate in a second rotation direction, the first oblique The groove and the second inclined groove drive the first slide seat and the second slide seat away from each other by the first guide arm and the second guide arm, respectively. A floating capacitance detection method, which is suitable for a capacitance detection device, which includes a management unit, a test controller, a second measurement module, a terminal module and a switching module, the test controller It includes a first measurement module, the terminal module includes a plurality of terminals; the method includes the following steps: (A) write a preset detection program by the management unit; (B) the test controller is obtained from the management unit The preset detection program; (C) the test controller controls the plurality of terminals of the terminal module to simultaneously approach and electrically contact a capacitor under test; (D) the test controller controls the switching according to the preset detection program A module to switch at least one of the first measurement module and the second measurement module electrically coupling the complex terminals to the test controller, and then detect a first characteristic parameter of the measured capacitance And at least one of a second characteristic parameter; and (E) the test controller controls the plurality of terminals of the terminal module to be away from the tested capacitor and out of electrical contact at the same time. The method for detecting a floating capacitor according to claim 8, wherein step (A) further includes: setting at least one detection parameter value by the management unit; and step (F) after the step (E): ( F) The test controller analyzes and compares the detected first characteristic parameter and the second characteristic parameter with the at least one detection parameter value to correspondingly generate a quality parameter, and classifies the tested capacitor accordingly. The method for detecting a floating capacitor according to claim 9, wherein in step (F), the test controller further transmits the first characteristic parameter and the second characteristic parameter to the management unit.

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