CN201274234Y

CN201274234Y - Independent charging and discharging apparatus for automatic aging machine

Info

Publication number: CN201274234Y
Application number: CNU2008200606863U
Authority: CN
Inventors: 孙良泉
Original assignee: NANTONG TIANHE MECHANICAL TECHNOLOGY Co Ltd
Current assignee: NANTONG TIANHE MECHANICAL TECHNOLOGY Co Ltd
Priority date: 2008-07-23
Filing date: 2008-07-23
Publication date: 2009-07-15
Anticipated expiration: 2018-07-23

Abstract

The utility model discloses an independent charge and discharge device for an automatic aging machine, which effectively solves the problem that in the case of short circuit during the conditioning process, the rest capacitors can avoid being aged, improves the aging quality during production and ensures the leakage current of the products to reach the standard. The independent charge and discharge device consists of a programmable controller or an industrial control computer, a current detection module, a constant current adjusting module, an over-current protection thermistor, a capacitor to be aged, a aging bent and a aging power source. The conditioning power source is connected with the current detection module; the constant current adjusting module and the conditioning bent form a loop; the programmable controller or the industrial control computer controls the current detection module and the constant current adjusting module; the over-current protection thermistor is connected with the capacitor to be aged in series to form a aging unit; and a plurality of aging units are connected in parallel to form the aging bent.

Description

Automatic aging machine independence charge and discharge device

Technical field

The utility model relates to field of capacitor manufacture, especially aluminium electrolytic capacitor automatic aging machine independence charge and discharge device.

Background technology

In the production technology of existing aluminium electrolytic capacitor, the core bag is through dipping, become semi-finished product after the encapsulation, semi-finished product will become the qualified finished product of electrical property, the palpus process applies specified aging voltage and give the ageing of stipulated time in constant hot environment, purpose is the electrolyte that utilizes the core bag self to flood, repair in the capacitor production process because of cutting through a series of electrochemical reactions, riveted joint and friction etc. and impaired aluminum electric pole foil oxide-film, reach product capacity, stablizing of a series of electrical properties such as leakage current and loss tangent makes it meet the requirement of target level of product quality.Capacitor after aging after tested, become formal product after the sorting.Traditional aging method adopts the device of charged in parallel, and tens of～hundreds of capacitor is plugged on the aging framed bent of charging, and tens such framed bents are connected on again on the powerful ageing power supply jointly, and ageing simultaneously charges.If the drawback of this device is that one or several capacitor short-circuit is wherein arranged, so, because the existence of this shorted condenser, because charging circuit is in parallel, almost all the flow through capacitor of short circuit of ageing electric current will be made, therefore normal capacitor will lose ageing electric current and voltage, have a strong impact on the ageing quality, cause product leakage current index not up to standard.

The utility model content

The utility model technology has solved the problems referred to above effectively, has guaranteed to have in the ageing process under the situation of short circuit to avoid all the other capacitors to can not get ageing, has improved the ageing quality when producing, and has guaranteed that the product leakage current is up to standard.

The technical solution adopted in the utility model is: automatic aging machine independence charge and discharge device; it is by Programmable Logic Controller or industrial PC; current detection module; the constant flow regulation module; the overcurrent protection thermistor; treat the ageing capacitor; the ageing framed bent; the ageing power supply is formed; the ageing power supply connects current detection module, and constant flow regulation module and ageing framed bent constitute loop, Programmable Logic Controller or industrial PC Control current detection module and constant flow regulation module; the overcurrent protection thermistor forms the ageing unit with treating the ageing capacitors in series, a plurality of ageings unit ageing framed bent that forms in parallel.

When ageing carries out, when among the whole capacitor device charging group during arbitrary capacitor short-circuit, at first be that the overcurrent protection thermistor of series connection on it sharply raises because of overcurrent heating resistance, the restriction electric current further increases, and has isolated the adverse effect of poor short circuit capacitor to peripheral non-defective unit effectively; Rise when influencing other framed bent when the charging current that causes whole framed bent owing to whole batch quality problems is acute, the constant current Detection ﹠ Controling circuit unit that is connected on this framed bent in time moves, by regulating the angle of flow of high-power field-effect transistor in the constant-current control circuit, the control charging current is all the time in steady state.By this a series of regulating and controlling, got rid of the adverse effect of short circuit product effectively to normal product, improved ageing quality and ageing efficient.

Description of drawings

Fig. 1 is the utility model schematic diagram.

1 is Programmable Logic Controller or industrial PC among the figure; 2 is current detection module; 3 is the constant flow regulation module; 4 are the overcurrent protection thermistor; 5 for treating the ageing capacitor; 6 is ageing framed bent (in the frame of broken lines); 7 is the ageing power supply.

Embodiment

Automatic aging machine independence charge and discharge device; it is by Programmable Logic Controller or industrial PC; current detection module; the constant flow regulation module; the overcurrent protection thermistor; treat the ageing capacitor; the ageing framed bent; the ageing power supply is formed; the ageing power supply connects current detection module, and constant flow regulation module and ageing framed bent constitute loop, Programmable Logic Controller or industrial PC Control current detection module and constant flow regulation module; the overcurrent protection thermistor with treat that the ageing capacitors in series forms seasoned unit, a plurality of ageings unit ageing framed bent that forms in parallel.

When normal ageing begins, regulate determine the ageing voltage electric current after, by the electric current of ageing power supply 7 outputs through current detection module 2, constant flow regulation module 3, overcurrent protection thermistor 4 to treating that ageing capacitor 5 provides constant ageing electric current.

In treating ageing capacitor 5, there be a certain capacitor to damage and when producing short circuit, short circuit current causes connecting, and thermistor 4 on it sharply generates heat, resistance raises, make the electric current rapid drawdown of this capacitor of flowing through, isolated the influence of shorted condenser effectively other capacitor on the same framed bent.

When causing the impaired capacitor of short circuit to increase if batch quality problems take place; the acute liter of ageing electric current that will cause whole ageing framed bent so; at this moment; by current detection module 2; detected over-current signal is after Programmable Logic Controller or industrial PC 1 judgment processing; the output pulse width modulation signal is given constant flow regulation module 3, and the current stabilization of controlling whole framed bent has played protection ageing power supply and isolated the effect of defective products in predetermined scope.

Claims

1, automatic aging machine independence charge and discharge device; it is characterized in that: it is by Programmable Logic Controller or industrial PC; current detection module, constant flow regulation module, overcurrent protection thermistor; treat the ageing capacitor; the ageing framed bent, the ageing power supply is formed, and the ageing power supply connects current detection module; constant flow regulation module and ageing framed bent constitute loop, Programmable Logic Controller or industrial PC Control current detection module and constant flow regulation module.

2, automatic aging machine independence charge and discharge device according to claim 1 is characterized in that: the overcurrent protection thermistor forms the ageing unit with treating the ageing capacitors in series.

3, automatic aging machine independence charge and discharge device according to claim 1 is characterized in that: a plurality of ageings unit ageing framed bent that forms in parallel.