CN209946357U - Polarity discriminator for strip line product of aluminum electrolytic capacitor - Google Patents
Polarity discriminator for strip line product of aluminum electrolytic capacitor Download PDFInfo
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- CN209946357U CN209946357U CN201920559418.4U CN201920559418U CN209946357U CN 209946357 U CN209946357 U CN 209946357U CN 201920559418 U CN201920559418 U CN 201920559418U CN 209946357 U CN209946357 U CN 209946357U
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Abstract
The utility model provides an aluminum electrolytic capacitor strip line product polarity discriminator, include: the device comprises a detection shell, a main control module, a display module, a charging module and a detection module; the main control module is used for issuing instructions to each module and controlling the whole polarity judging process; the control module controls the opening and closing of the instrument and sets detection parameters; the display module is used for displaying product detection data; the charging module is used for charging and discharging the capacitor to be detected; the detection module is used for detecting the change values of the current parameters after the capacitor to be detected is charged in a positive phase and a negative phase. The utility model discloses can not only distinguish the polarity of this kind of condenser belted wire product fast accurately, open a way or the short circuit, reject bad product, can detect this type of product in batches moreover, save operating time greatly, improve production efficiency.
Description
Technical Field
The utility model relates to the technical field of capacitors, especially, relate to an aluminum electrolytic capacitor strip line product polarity discriminator.
Background
Aluminum electrolytic capacitors, which generally function as power filtering, decoupling, signal coupling, time constant setting, dc blocking, etc., in power circuits or intermediate and low frequency circuits, are polar. When such a polar aluminum electrolytic capacitor is used, it is necessary to connect and mount the capacitor with the correct polarity because it cannot receive a reverse voltage. Generally, before using, the positive electrode and the negative electrode of the aluminum electrolytic capacitor are firstly correctly distinguished. For most aluminum electrolytic capacitor products, the positive and negative electrodes can be almost directly distinguished on the appearance. For example, most manufacturers of soldering lug type aluminum electrolytic capacitors or horn type aluminum electrolytic capacitors currently select "negative electrode labels", that is, the welding pins corresponding to the "-" marks on the sleeve are used as the negative electrodes. Meanwhile, the top surfaces of the positive and negative terminals on the capacitor cover plate are sometimes marked by negative electrode embossing or the symbol. Of course, some electrolytic capacitor manufacturers print the "+" or "-" symbol on the rivet of the tab capacitor directly. In conclusion, the positive and negative electrode information of the polar capacitor can be basically and directly obtained from the appearance of the aluminum electrolytic capacitor product alone.
However, when a tab type aluminum electrolytic capacitor strip product is mass-produced, it is required to connect two lead wires of a certain length to the positive and negative terminals of the capacitor and to connect a lead connector or a lead connecting terminal to the ends of the lead wires. During the operation of connecting the lead wire to the positive and negative terminals of the capacitor, since the length of the connected lead wire is long (e.g., 250 to 500mm) and the two lead wires are required to be twisted together for use, there is a high possibility that the lead wire is not connected to the positive and negative terminals of the capacitor correctly or the lead wire is not welded to the connecting terminal firmly enough. Therefore, this will cause the bad phenomena of reversed polarity, open circuit or short circuit of the product of the tab type aluminum capacitor strip line. This not only affects the quality of the product, but also causes some damage to the electronic and electric products in use. Therefore, how to ensure the quality of the capacitor strip line product becomes a crucial quality control problem in production. At present, a universal meter is generally used for judging the polarity of the capacitor wired products, namely the resistance value of the capacitor is measured by using the positive and negative 2 times of a resistance shift pointer meter, one measurement with large resistance value indicates that a black pen of the universal meter is connected with the positive electrode of the capacitor, and a red pen of the universal meter is connected with the negative electrode of the capacitor. However, the method for judging the polarity of the capacitor can only judge one capacitor at a time, the working efficiency is very low, and especially the polarity judgment of the capacitor strip line products produced in large scale needs a lot of time to complete, which directly affects the production efficiency. There is a need for an apparatus that can quickly perform polarity discrimination of capacitor strip line products that can solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an aluminium electrolytic capacitor strip line product polarity discriminator, the polarity that has solved mass production's capacitor strip line product is differentiateed and then needs a large amount of time to accomplish, influences production efficiency's problem. In order to solve the technical problem, the utility model discloses specifically adopt following technical scheme:
a polarity discriminator for a strip line product of an aluminum electrolytic capacitor comprises: the device comprises a detection shell, a main control module, a display module, a charging module and a detection module;
the main control module comprises a Micro Control Unit (MCU), the MCU is installed on a PCB inside the detection shell and is respectively connected with the control module, the display module, the charging module and the detection module, and the MCU is used for issuing instructions to the modules and controlling the whole polarity discrimination process;
the control module comprises a power switch and a polarity judging and setting key, wherein the power switch and the polarity judging and setting key are arranged on the outer surface of the detection shell, the power switch is used for controlling the instrument to be turned on and off, and the polarity judging and setting key is used for setting detection parameters;
the display module comprises a capacitor electrical performance parameter display screen arranged outside the detection shell, and the capacitor electrical performance parameter display screen is used for displaying detection data of the capacitor to be detected;
the charging module is arranged inside the detection shell and used for charging and discharging a capacitor to be detected;
the detection module comprises a plurality of capacitor plugs arranged on the outer surface of the detection shell, a connecting wire and an A/D converter installed on the PCB, wherein the capacitor plugs are used for being connected with the capacitor to be detected through the connecting wire, and the A/D converter is used for detecting the change value of the current parameter after the capacitor to be detected is charged in the positive phase and the reverse phase.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a simple, swift PCB (printed Circuit Board) Circuit board, carry out normal phase and reverse phase charging to being detected the condenser product through constant voltage power supply, utilize microcontrol unit MCU (microcontrollerUnit) to measure the polarity judgement that the electric current variation value of every product realized the soldering lug condenser area line product through the AD converter, when taking line capacitor charging process in the product emergence antipolarity, short Circuit or when inefficacy such as opening a way, instruct the LED lamp will light the warning so that reject the bad product on the corresponding detection interface. The utility model discloses can not only distinguish the polarity of this kind of condenser belted wire product fast accurately, open a way or the short circuit, reject bad product, can detect this type of product in batches moreover, save operating time greatly, improve production efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the wiring of the capacitor to be detected according to the present invention;
FIG. 3 is a schematic diagram of the module connection of the present invention;
description of reference numerals: the device comprises a detection shell 1, a power switch 2, a polarity discrimination setting button 3, a capacitor electrical property parameter display screen 4, a capacitor plug 5, a connecting wire 6, an indicating LED lamp 7 and a capacitor to be detected 8.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.
As shown in fig. 1 to 3, the present embodiment provides a polarity discriminator for a strip line product of an aluminum electrolytic capacitor, comprising: the device comprises a detection shell 1, a main control module, a display module, a charging module and a detection module;
the main control module comprises a Micro Control Unit (MCU), the MCU is installed on a PCB inside the detection shell 1 and is respectively connected with the control module, the display module, the charging module and the detection module, and the MCU is used for sending instructions to the modules and controlling the whole polarity discrimination process;
the control module comprises a power switch 2 and a polarity distinguishing and setting key 3, wherein the power switch 2 is arranged on the outer surface of the detection shell 1, the power switch 2 is used for controlling the opening and closing of an instrument, and the polarity distinguishing and setting key 3 is used for setting detection parameters;
the display module comprises a capacitor electrical performance parameter display screen 4 arranged outside the detection shell 1, and the capacitor electrical performance parameter display screen 4 is used for displaying detection data of the capacitor 8 to be detected;
the charging module is arranged inside the detection shell 1 and is used for charging and discharging the capacitor 8 to be detected;
the detection module comprises a plurality of capacitor plugs 5 arranged on the outer surface of the detection shell 1, a connecting wire 6 and an A/D converter installed on a PCB, wherein the capacitor plugs 5 are used for being connected with a capacitor 8 to be detected through the connecting wire 6, and the A/D converter is used for detecting the change values of current parameters after positive-phase and reverse-phase charging of the capacitor 8 to be detected.
For more audio-visual demonstration testing result, detect that every condenser plug 5 department on the casing 1 surface all is provided with instruction LED lamp 7, instruction LED lamp 7 is connected with host system. When the product has failure phenomena such as reversed polarity, short circuit or open circuit in the charging process of the capacitor 8 to be detected, the indicating LED lamp 7 is turned on to indicate that the capacitor 8 to be detected belongs to a defective product.
In order to charge and discharge the capacitor 8 to be detected more stably, the charging module includes a constant voltage power supply.
In the charging process, a Micro Control Unit (MCU) in a main control module measures the current change value of each product through an A/D converter, and after the normal phase and the reverse phase charging is carried out on the strip-line product of the chip aluminum capacitor, if the reverse phase current value measured by a detection module is large but is smaller than the current value in the short circuit, the polarity of the strip-line product is reverse, and the strip-line product belongs to a defective product. The current value measured during short circuit is the biggest, and then no current produces during open circuit, all belong to the defective products, and instruction LED lamp 7 will light the warning so that reject the defective products on the corresponding detection interface.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (3)
1. A polarity discriminator for a strip line product of an aluminum electrolytic capacitor is characterized by comprising: the device comprises a detection shell, a main control module, a display module, a charging module and a detection module;
the main control module comprises a Micro Control Unit (MCU), the MCU is installed on a PCB inside the detection shell and is respectively connected with the control module, the display module, the charging module and the detection module, and the MCU is used for issuing instructions to the modules and controlling the whole polarity discrimination process;
the control module comprises a power switch and a polarity judging and setting key, wherein the power switch and the polarity judging and setting key are arranged on the outer surface of the detection shell, the power switch is used for controlling the instrument to be turned on and off, and the polarity judging and setting key is used for setting detection parameters;
the display module comprises a capacitor electrical performance parameter display screen arranged outside the detection shell, and the capacitor electrical performance parameter display screen is used for displaying detection data of the capacitor to be detected;
the charging module is arranged inside the detection shell and used for charging and discharging a capacitor to be detected;
the detection module comprises a plurality of capacitor plugs arranged on the outer surface of the detection shell, a connecting wire and an A/D converter installed on the PCB, wherein the capacitor plugs are used for being connected with the capacitor to be detected through the connecting wire, and the A/D converter is used for detecting the change value of the current parameter after the capacitor to be detected is charged in the positive phase and the reverse phase.
2. The aluminum electrolytic capacitor wired product polarity discriminator according to claim 1, wherein an indication LED lamp is disposed at each capacitor plug on the outer surface of the detection housing, and the indication LED lamp is connected to the main control module.
3. The aluminum electrolytic capacitor strip line product polarity discriminator according to claim 1, wherein said charging module comprises a constant voltage power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920559418.4U CN209946357U (en) | 2019-04-23 | 2019-04-23 | Polarity discriminator for strip line product of aluminum electrolytic capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920559418.4U CN209946357U (en) | 2019-04-23 | 2019-04-23 | Polarity discriminator for strip line product of aluminum electrolytic capacitor |
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| CN209946357U true CN209946357U (en) | 2020-01-14 |
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| CN201920559418.4U Active CN209946357U (en) | 2019-04-23 | 2019-04-23 | Polarity discriminator for strip line product of aluminum electrolytic capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115267617A (en) * | 2022-08-03 | 2022-11-01 | 深圳市新中元电子有限公司 | Polarity direction determination method of aluminum electrolytic capacitor |
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2019
- 2019-04-23 CN CN201920559418.4U patent/CN209946357U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115267617A (en) * | 2022-08-03 | 2022-11-01 | 深圳市新中元电子有限公司 | Polarity direction determination method of aluminum electrolytic capacitor |
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Address after: 313000 88 Changxi North Road, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Huzhou new JiangHao Electronics Co.,Ltd. Address before: 313000 Building 1, science and Technology Innovation Park, No.1 Industrial Road, South Taihu hi tech Industrial Park, Huzhou City, Zhejiang Province Patentee before: HUZHOU YILI ELECTRONIC Co.,Ltd. |
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