CN203707073U - Aging and testing device for electronic tubes - Google Patents

Aging and testing device for electronic tubes Download PDF

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Publication number
CN203707073U
CN203707073U CN201420115606.5U CN201420115606U CN203707073U CN 203707073 U CN203707073 U CN 203707073U CN 201420115606 U CN201420115606 U CN 201420115606U CN 203707073 U CN203707073 U CN 203707073U
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China
Prior art keywords
electron tube
voltmeter
aged test
aging
tension transformer
Prior art date
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Active
Application number
CN201420115606.5U
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Chinese (zh)
Inventor
曾朝东
祝健
杜岩松
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CHENGDU XUGUANG ELECTRONICS Co Ltd
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CHENGDU XUGUANG ELECTRONICS Co Ltd
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Priority to CN201420115606.5U priority Critical patent/CN203707073U/en
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Abstract

The utility model discloses an aging and testing device for electronic tubes. Avoltage regulator provides electricity for a primary side of a high-voltage transformer, voltages output by a secondary side of thehigh-voltage transformerare exerted between positive poles and negative poles of the electronic tubes, the negative poles of the electronic tubes are grounded, current sensors are arranged on connecting lines of theelectronic tubes and the ground and connected with a voltmeter after passing through a transmitter, and a pair of output normally-closed contacts of the voltmeter is in series connection with a primary power supply circuit of thehigh-voltage transformer. According to the aging and testing device, two procedures, namely, aging and leakage current testing, for the electronic tubes are combined to be performed, and meanwhile, interlocking protection measures are taken, so that the working efficiency is improved, the energy consumption is reduced, the cost is saved, and the safety is improved.

Description

A kind of electron tube aged test device
Technical field
The utility model relates to electronic devices and components, relates in particular to a kind of electron tube aged test device.
Background technology
In the production process of electron tube, seasoned, test step is the of paramount importance operation that determines electron tube quality.At present, multistation electronics pipe aged test platform can meet the needs of production substantially, process is: the electron tube of having manufactured is placed on work housing, load high tension voltage, carry out burr processing, carry out seasoned, the high tension voltage loading according to the difference of product is also different, when arriving certain technological requirement, the size of measuring the inner leakage current of electron tube checks the insulation degree of electron tube and the stability of electron tube quality.This method operating efficiency is not high, and energy resource consumption is large.
Utility model content
The utility model aims to provide a kind of electron tube aged test device, increases work efficiency, and reduces energy consumption, cost-saving.
For achieving the above object, the utility model is realized by the following technical solutions:
The disclosed electron tube aged test of the utility model device: the elementary power supply that voltage regulator is high-tension transformer, described high-tension transformer secondary output voltage is applied between the anode and negative electrode of electron tube, the minus earth of described electron tube, on the line between ground, be provided with current sensor, described current sensor at electron tube and connect voltmeter after by transmitter, a pair of output normally closed interlock of voltmeter is connected in the elementary current supply circuit of high-tension transformer.When concrete operations, progressively improve the primary voltage of high-tension transformer by voltage regulator, carry out the seasoned of electron tube according to technological requirement at corresponding high pressure spot, reach after experienced process requirement, carry out the measurement of leakage current, the quality of examining the quality of the production.In seasoned or test process, if when the leakage current of electron tube is greater than the predetermined current on voltmeter, the output normally closed interlock of voltmeter disconnects, thereby the primary voltage of cutoff high transformer plays a protective role.
Further, in the elementary current supply circuit of high-tension transformer, be also in series with overcurrent protector, the elementary power supply of described overcurrent protector cutoff high transformer in the time that the primary current of high-tension transformer is excessive, further shields.
Further, the input of described voltmeter is parallel with waveform oscilloscope, waveform that can Real Time Observation electron tube leakage current, and for deeper research provides reference, the preferred oscilloscope of described waveform oscilloscope.
Further, the secondary output of described high-tension transformer is connected with early-warning for high pressure device, and described early-warning for high pressure device comprises HT pilot and audible-visual annunciator; In the time of high-pressure work, send cue by HT pilot, play warning function; And in the time that High voltage output approaches or exceedes the safety value of setting, send warning by audible-visual annunciator.
Preferably, described current sensor is current transformer, adopts current transformer can isolate the electromagnetic interference of seasoned loop high-voltage to test loop.
Further, described electron tube has multiple, and the quantity of described current sensor, transmitter, voltmeter is all identical with the number of electron tube, and multiple electron tubes and many covers public a set of seasoned loop of test loop are cost-saved, raise the efficiency.
What the utility model adopted is simple in structure effective; easy to maintenance; detection means advanced person; can multiple products be carried out seasoned simultaneously and be measured by a set of high-pressure system, save the energy, improve production efficiency; make electron tube in aged test; improve the quality of products, can find in time that in production engineering on each station, the situation of the excessive defective insulation of electric leakage appears in electron tube, and automatically close high-pressure system in time and protect the normal work of other products.
Brief description of the drawings
Fig. 1 is the utility model electrical schematic diagram;
In figure: 1-current transformer, 2-electron tube.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figure 1, the open electron tube aged test device of this utility model, be made up of a seasoned loop test loop identical with several, the number of test loop equals to treat that the number of seasoned electron tube 2 is identical, and test loop is for testing the leakage current of electron tube, wherein, seasoned loop comprises: several anodes, what negative electrode was parallel with one another treats that seasoned electron tube 2 is connected to the secondary of high-tension transformer, wherein one end ground connection, mutually insulated between electron tube 2 bodys, earth terminal is arranged near electron tube 2 one sides, the elementary connection voltage regulator of high-tension transformer, test loop comprises: on the earth terminal of each electron tube 2 and the connection line of earth point, current transformer 1 is set, current transformer 1 is to adopt voltmeter to measure after voltage by transmitter by current conversion, this voltage is input to oscilloscope simultaneously and carries out the observation of practical work waveform.
As a kind of safety precautions, between seasoned loop and test loop, adopt following interlock mode: described voltmeter adopts the digital display type voltmeter of tape relay output, the a pair of normally closed interlock of this relay is connected in the primary return of the high-tension transformer in seasoned loop, when real work, by the type of electron tube and corresponding technological requirement, above-mentioned setting voltage value is set, if the leakage current of one of them electron tube is excessive, make the input voltage value of connected digital display type voltmeter be greater than setting voltage value, its with the actuating of relay, the normally closed interlock being connected in the primary return of high-tension transformer disconnects, thereby realize the power-off in seasoned loop.
Further, the overcurrent protector of also connecting in the primary return of high-tension transformer, in the time that operating current exceedes technological requirement, disconnects the primary return of high-tension transformer automatically.
Further, at the secondary parallel high voltage precaution device of high-tension transformer, the early-warning for high pressure device of employing should comprise HT pilot and audible-visual annunciator, and HT pilot is worked in the time having high pressure, be used for pointing out this working region to have high pressure, near personnel are served as warning; Audible-visual annunciator is worked in the time that high pressure is too high, for the protection of device and the electron tube in seasoned loop, also can avoid the damage of power supply facilities.
Certainly; the utility model also can have other various embodiments; in the situation that not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims (8)

1. an electron tube aged test device, it is characterized in that: the elementary power supply that voltage regulator is high-tension transformer, described high-tension transformer secondary output voltage is applied between the anode and negative electrode of electron tube, the minus earth of described electron tube, on the line between ground, be provided with current sensor, described current sensor at electron tube and connect voltmeter after by transmitter, a pair of output normally closed interlock of voltmeter is connected in the elementary current supply circuit of high-tension transformer.
2. electron tube aged test device according to claim 1, is characterized in that: in the elementary current supply circuit of high-tension transformer, be also in series with overcurrent protector.
3. electron tube aged test device according to claim 1, is characterized in that: the input of described voltmeter is parallel with waveform oscilloscope.
4. electron tube aged test device according to claim 1, is characterized in that: the secondary output of described high-tension transformer is connected with early-warning for high pressure device.
5. electron tube aged test device according to claim 3, is characterized in that: described waveform oscilloscope is oscilloscope.
6. electron tube aged test device according to claim 4, is characterized in that: described early-warning for high pressure device comprises HT pilot and audible-visual annunciator.
7. electron tube aged test device according to claim 1, is characterized in that: described current sensor is current transformer.
8. electron tube aged test device according to claim 1, is characterized in that: described electron tube has multiple, and the quantity of described current sensor, transmitter, voltmeter is all identical with the number of electron tube.
CN201420115606.5U 2014-03-14 2014-03-14 Aging and testing device for electronic tubes Active CN203707073U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420115606.5U CN203707073U (en) 2014-03-14 2014-03-14 Aging and testing device for electronic tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420115606.5U CN203707073U (en) 2014-03-14 2014-03-14 Aging and testing device for electronic tubes

Publications (1)

Publication Number Publication Date
CN203707073U true CN203707073U (en) 2014-07-09

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CN201420115606.5U Active CN203707073U (en) 2014-03-14 2014-03-14 Aging and testing device for electronic tubes

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CN (1) CN203707073U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105182270A (en) * 2015-07-31 2015-12-23 华立仪表集团股份有限公司 Device and method of electric energy meter voltage-withstand test
CN105772429A (en) * 2014-12-19 2016-07-20 厦门华瑞电子有限公司 Automatic washing device for relay

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105772429A (en) * 2014-12-19 2016-07-20 厦门华瑞电子有限公司 Automatic washing device for relay
CN105182270A (en) * 2015-07-31 2015-12-23 华立仪表集团股份有限公司 Device and method of electric energy meter voltage-withstand test

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