CN113125810B - Electrical separation switching separation device for multiple types of separation connectors - Google Patents

Electrical separation switching separation device for multiple types of separation connectors Download PDF

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Publication number
CN113125810B
CN113125810B CN202110203647.4A CN202110203647A CN113125810B CN 113125810 B CN113125810 B CN 113125810B CN 202110203647 A CN202110203647 A CN 202110203647A CN 113125810 B CN113125810 B CN 113125810B
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power supply
separation
self
peak
pinhole
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CN113125810A (en
Inventor
庄超
蒙川
杨明
张丽华
刘燕清
杨缘
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Sichuan Aerospace Liaoyuan Technology Co ltd
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Sichuan Aerospace Liaoyuan Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0416Connectors, terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/36Overload-protection arrangements or circuits for electric measuring instruments
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The invention discloses an electric separation switching separation device of a plurality of types of separation connectors, which comprises: the power supply comprises a power supply wiring terminal, a switch without a self-locking button, a power supply connection indicator lamp, a peak elimination circuit, a contact element storage bag, an alligator clip and a plurality of pinhole contact elements; the power connection terminal is connected with one end without the self-locking button switch, the other end without the self-locking button switch is connected with one end of the power-on indicator lamp, and the other end of the power-on indicator lamp is respectively connected with the anti-peaking circuit, the crocodile clip and the plurality of pinhole contacts; part of the pinhole contacts are connected with the separation connector, and the rest of the pinhole contacts are connected with the contact storage bag. The invention effectively solves the problem that the electric split contact piece needs to be temporarily searched and matched before each test is performed, reduces the preparation time and improves the working efficiency.

Description

Electrical separation switching separation device for multiple types of separation connectors
Technical Field
The invention belongs to the technical field of electric connector electric separation of accurate guidance technology, and particularly relates to a multi-connector electric separation switching separation device.
Background
As precision guided technology weapon systems become more complex, more and more electrical disconnect connectors require power to perform electrical disconnect tests, resulting in more and more types of mating contacts that are required.
The anti-peak circuit is not added to some separation connectors, and a single independent contact piece is easy to lose.
Currently, in performing electrical separation, alligator clips are used to clamp the corresponding contacts to apply voltage to the electrical separation connector coils. Because many electrical disconnect connectors do not incorporate anti-peaking circuitry, discharge arcing between the connector surface and the contacts at the moment of power failure can result in damage to the electrical connector surface resulting in connector rejection. Low test efficiency, etc.
Disclosure of Invention
The invention solves the technical problems that: the defect of the prior art is overcome, the multi-connector electric separation switching separation device is provided, the problem that electric separation contact pieces need to be temporarily searched and matched before each test is effectively solved, the preparation time is shortened, and the working efficiency is improved. And the quality risks of generating surplus substances, which are omitted in the butt joint surface of the product, are effectively avoided, and the quality assurance of the product is improved. The anti-peak current generated in the moment of power failure of the electric branch coil can be effectively prevented from breaking down internal devices of the power supply, and reliability of an electric separation test is improved.
The invention aims at realizing the following technical scheme: an electrical disconnect switch disconnect device for a plurality of types of disconnect connectors, comprising: the power supply comprises a power supply wiring terminal, a switch without a self-locking button, a power supply connection indicator lamp, a peak elimination circuit, a contact element storage bag, an alligator clip and a plurality of pinhole contact elements; the power connection terminal is connected with one end without the self-locking button switch, the other end without the self-locking button switch is connected with one end of the power-on indicator lamp, and the other end of the power-on indicator lamp is respectively connected with the anti-peaking circuit, the crocodile clip and the plurality of pinhole contacts; part of pinhole contacts are connected with the separation connector, and the rest of pinhole contacts are connected with the contact storage bag; the switching power supply voltage is sent into one end without the self-locking button switch through the power supply wiring terminal, the voltage is switched on to the other end without the self-locking button switch after the self-locking button switch is pressed down, the power supply on indicator lamp is lightened, the corresponding pinhole contact piece applies the voltage to the corresponding point position of the separation connector, and the head and the seat of the separation connector are smoothly separated; the coil without the self-locking button switch is loosened, the separation connector is powered off, and at the moment, the anti-peak current of the coil of the separation connector is released through the anti-peak circuit.
In the electrical separation switching separation device of the separation connectors of the plurality of types, the plurality of pinhole contacts comprise a miniature pinhole contact, a plurality of pinhole contacts of 1mm and pinhole contacts of 0.8 mm.
In the electrical separation switching separation device of the plurality of types of separation connectors, the anti-peak eliminating circuit comprises a resistor R1, an anti-peak eliminating diode D, a coil resistor R2 and a separation inductance coil L; the resistor R1 is connected in series with the anti-peak eliminating diode D and then connected in parallel with the split inductor L; the coil resistor R2 is connected between the anti-peaking diode D and the split inductor coil L.
In the above-mentioned multiple type of separation connector electrical separation switching separator, press the other end that does not take auto-lock button switch to the voltage of closing after not taking auto-lock button switch, power on pilot lamp lights, corresponding pinhole contact is applyed the voltage at the corresponding point position of separation connector, and anti-peak diode D is in the off state this moment, and separation connector's head and seat are separated smoothly, and the both ends of separation inductance coil L can produce the anti-peak voltage of multiple in the moment of outage, and anti-peak diode D is in the on state this moment, and anti-peak voltage can release voltage to resistance R1 through anti-peak diode, and resistance R1 consumes anti-peak voltage.
In the electrical separation switching separation device of the plurality of types of separation connectors, the power supply wiring terminal comprises a positive power supply wiring terminal and a negative power supply wiring terminal; wherein the positive power supply wiring terminal and the negative power supply wiring terminal are both connected with the button switch without self-locking; the positive power supply wiring terminal is connected with the positive electrode of the power supply, and the negative power supply wiring terminal is connected with the negative electrode of the power supply.
In the electrical separation switching separation device of the plurality of types of separation connectors, the positive power supply wiring terminal is a red wiring terminal.
In the electrical separation switching and separating device of the plurality of types of separation connectors, the negative power supply wiring terminal is a black wiring terminal.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention effectively solves the problem that the electric split contact piece needs to be temporarily searched and matched before each test is performed, reduces the preparation time and improves the working efficiency;
(2) The invention effectively avoids the quality risk of generating surplus substances which are missed in the butt joint surface of the product, and improves the quality assurance of the product. The anti-peak current generated in the moment of power failure of the electric branch coil can be effectively prevented from breaking down internal devices of the power supply, and reliability of an electric separation test is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a block diagram of a multi-connector electrical separation switching separation device provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of an anti-peak circuit according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Fig. 1 is a block diagram of a multi-connector electrical separation switching separation device according to an embodiment of the present invention. As shown in fig. 1, the multi-connector electrical separation switching separation device includes: the power supply comprises a power supply wiring terminal, a switch without a self-locking button, a power supply connection indicator lamp, a peak elimination circuit, a contact element storage bag, a crocodile clip and a plurality of pinhole contact elements; wherein,
the power connection terminal is connected with one end without the self-locking button switch, the other end without the self-locking button switch is connected with one end of the power-on indicator lamp, and the other end of the power-on indicator lamp is respectively connected with the anti-peaking circuit, the crocodile clip and the plurality of pinhole contacts; part of pinhole contacts are connected with the separation connector, and the rest of pinhole contacts are connected with the contact storage bag;
the switching power supply voltage is sent into one end without the self-locking button switch through the power supply wiring terminal, the voltage is switched on to the other end without the self-locking button switch after the self-locking button switch is pressed down, the power supply on indicator lamp is lightened, the corresponding pinhole contact piece applies the voltage to the corresponding point position of the separation connector, and the head and the seat of the separation connector are smoothly separated; the coil without the self-locking button switch is loosened, the separation connector is powered off, and at the moment, the anti-peak current of the coil of the separation connector is released through the anti-peak circuit.
Fig. 1 shows a disconnecting connector disconnecting test equivalent circuit, wherein L is the inductance of an electric disconnecting plug coil, and R2 is the coil resistance. After the Vc voltage is disconnected, because the current of the inductance coil cannot be suddenly changed, the energy in the coil still needs to be released through flowing in the arrow direction, if the internal resistance and the voltage drop of the diode are ignored, and R=R1+R2 is caused, the switch K is disconnected at the moment when the current in the inductance L is Vc/R2, and then the current in the inductance L is provided with
L*(di/dt)+Ri=0;
The general solution of the visible current i is
i=Aexp(-Ri/L)。
Since the current cannot be suddenly changed in the inductor, i (0-) =i (0+) =1o.substitution formula i=axp (-Ri/L) yields an integration constant a=io.
Thus, the current i=loxp (-Rt/L) =loxp (-T/T), where lo=vc/R, t=l/R.
The voltages on the resistor and the inductor are respectively:
un=Ri=Rloexp(-t/T);
L=Ldi;
di=-Rloexp(-t/T)。
from the above formula, the absolute values of the two are all reduced according to the same exponential law. The induced electromotive force inevitably causes voltage rise at both ends of the inductor along the direction of the current due to the decrease of the current, and the voltage of the inductor should be negative in the selected reference direction, so that a negative sign appears in the formula (3), the current and voltage change curves with time can also see the influence on the circuit after the resistance is increased, and finally the anti-peak voltage is released at the end of the resistor R1 through diode conduction.
The plurality of pinhole contacts includes a miniature pinhole contact, a plurality of 1mm pinhole contacts, and a 0.8mm pinhole contact.
The voltage of the switch power supply is sent to one end of the button switch through the power connection terminal, the other end of the switch is connected with the power connection indicator lamp, and the end is simultaneously connected with the anti-peaking circuit and various contact pieces, and the crocodile clip. The contact insulating storage bag is additionally arranged outside the contact wire to prevent the short circuit of the power supply. The power supply voltage is switched on to the other end after the button switch is pressed down, the power supply switch-on indicator lamp is turned on, and the corresponding contact piece applies voltage to the corresponding point position of the electric connector, namely the actual electric separation voltage value is arranged on the wiring bag of the corresponding electric separation connector, and at the moment, the separation connector is smoothly separated. When the switch is released, the switch is automatically reset, the electric separation voltage is closed, and the anti-peak current of the electric separation coil is released through the anti-peak circuit. The whole electrical separation and falling process is completed.
The steps of using the electrical disconnect switch of the various types of connectors of the present invention are as follows:
(1) The power supply wiring terminals are connected to the positive and negative stages of the power supply. The red binding post connects the positive level of power, and black binding post connects at the negative level of power.
(2) And selecting proper contact elements according to the required separation connectors, and inserting the contact elements at corresponding point positions of the corresponding connectors, inserting the red contact elements into positive stages and inserting the black contact elements into negative stages. And the redundant contact is placed in the contact storage bag, so that the positive and negative-level short circuit of the power supply is prevented.
(3) The voltage to be applied is set on the power supply.
(4) The button switch is pressed, and the power-on indicator lamp is turned on. A voltage is applied to the split connector wiring packages. The connector head and the seat are separated smoothly.
(5) The release button switch and the button spring up automatically, and the disconnection connector is powered off.
(6) The energy of the wire package without the anti-peaking circuit is released through the anti-peaking circuit.
(7) And closing the power supply.
Schematic diagram of anti-peaking circuit. As shown in fig. 2, the anti-peak circuit comprises a resistor R1, an anti-peak diode D, a coil resistor R2 and a separation inductance coil L; the resistor R1 is connected in series with the anti-peak eliminating diode D and then connected in parallel with the split inductor L; the coil resistor R2 is connected between the anti-peaking diode D and the split inductor coil L. The connection relation is as follows: the resistor R1 is connected in series with the anti-peaking diode and in parallel with the separate electrical connector coil.
After the self-locking button switch is pressed down, the voltage is switched on to the other end without the self-locking button switch, the power-on indicator lamp is turned on, the corresponding pinhole contact piece applies the voltage to the corresponding point of the separation connector, the anti-peak eliminating diode D is in a cut-off state, the head and the seat of the separation connector are smoothly separated, the two ends of the inductance coil L are separated at the moment of power failure to generate the multiplied anti-peak voltage, the anti-peak eliminating diode D is in a conduction state, the anti-peak voltage can release the voltage to the resistor R1 through the anti-peak eliminating diode, and the resistor R1 consumes the anti-peak voltage. Through the optimization of different contact interfaces, the quick separation test of multiple types of electric separation connectors can be realized, and the efficiency is high. And the connectors of various types are matched with each other without independently making a separation tool for each type of separation connector.
The embodiment effectively solves the problem that the electric branch contact pieces are required to be temporarily searched and matched before each test, reduces the preparation time and improves the working efficiency. And the quality risks of generating surplus substances, which are omitted in the butt joint surface of the product, are effectively avoided, and the quality assurance of the product is improved. The anti-peak current generated in the moment of power failure of the electric branch coil can be effectively prevented from breaking down internal devices of the power supply, and reliability of an electric separation test is improved.
Although the present invention has been described in terms of the preferred embodiments, it is not intended to be limited to the embodiments, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present invention by using the methods and technical matters disclosed above without departing from the spirit and scope of the present invention, so any simple modifications, equivalent variations and modifications to the embodiments described above according to the technical matters of the present invention are within the scope of the technical matters of the present invention.

Claims (7)

1. An electrical disconnect switch for a plurality of types of disconnect connectors, comprising: the power supply comprises a power supply wiring terminal, a switch without a self-locking button, a power supply connection indicator lamp, a peak elimination circuit, a contact element storage bag, an alligator clip and a plurality of pinhole contact elements; wherein,
the power connection terminal is connected with one end without the self-locking button switch, the other end without the self-locking button switch is connected with one end of the power-on indicator lamp, and the other end of the power-on indicator lamp is respectively connected with the anti-peaking circuit, the crocodile clip and the plurality of pinhole contacts; part of pinhole contacts are connected with the separation connector, and the rest of pinhole contacts are connected with the contact storage bag;
the switching power supply voltage is sent into one end without the self-locking button switch through the power supply wiring terminal, the voltage is switched on to the other end without the self-locking button switch after the self-locking button switch is pressed down, the power supply on indicator lamp is lightened, the corresponding pinhole contact piece applies the voltage to the corresponding point position of the separation connector, and the head and the seat of the separation connector are smoothly separated; the coil without the self-locking button switch is loosened, the separation connector is powered off, and at the moment, the anti-peak current of the coil of the separation connector is released through the anti-peak circuit.
2. The electrical disconnect switch of a multi-type disconnect connector of claim 1, wherein: the plurality of pinhole contacts includes a miniature pinhole contact, a plurality of 1mm pinhole contacts, and a 0.8mm pinhole contact.
3. The electrical disconnect switch of a multi-type disconnect connector of claim 1, wherein: the anti-peak circuit comprises a resistor R1, an anti-peak diode D, a coil resistor R2 and a separation inductance coil L; wherein,
the resistor R1 is connected in series with the anti-peak eliminating diode D and then connected in parallel with the split inductor L;
the coil resistor R2 is connected between the anti-peaking diode D and the split inductor coil L.
4. The electrical disconnect switch of claim 3, wherein: after the self-locking button switch is pressed down, the voltage is switched on to the other end without the self-locking button switch, the power-on indicator lamp is turned on, the corresponding pinhole contact piece applies the voltage to the corresponding point of the separation connector, the anti-peak eliminating diode D is in a cut-off state, the head and the seat of the separation connector are smoothly separated, the two ends of the inductance coil L are separated at the moment of power failure to generate the multiplied anti-peak voltage, the anti-peak eliminating diode D is in a conduction state, the anti-peak voltage can release the voltage to the resistor R1 through the anti-peak eliminating diode, and the resistor R1 consumes the anti-peak voltage.
5. The electrical disconnect switch of claim 3, wherein: the power supply wiring terminal comprises a positive power supply wiring terminal and a negative power supply wiring terminal; wherein,
the positive power supply wiring terminal and the negative power supply wiring terminal are connected with the button switch without self-locking;
the positive power supply wiring terminal is connected with the positive electrode of the power supply, and the negative power supply wiring terminal is connected with the negative electrode of the power supply.
6. The electrical disconnect switch of a multi-type disconnect connector of claim 5, wherein: the positive power supply connecting terminal is a red connecting terminal.
7. The electrical disconnect switch of a multi-type disconnect connector of claim 5, wherein: the negative power supply connecting terminal is a black connecting terminal.
CN202110203647.4A 2021-02-23 2021-02-23 Electrical separation switching separation device for multiple types of separation connectors Active CN113125810B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132389A (en) * 1977-04-21 1978-11-18 Siemens Ag Indicating tester for voltage* voltage polarity* and continuity of electric conductor
CN201238112Y (en) * 2008-08-14 2009-05-13 中航光电科技股份有限公司 Automatic-separation electric connector and its plug
JP2009231064A (en) * 2008-03-24 2009-10-08 Otowa Denki Kogyo Kk Spd live-line separating device
CN201521700U (en) * 2009-09-21 2010-07-07 邵阳维克液压有限责任公司 Solenoid valve controller
CN102938576A (en) * 2012-11-21 2013-02-20 无锡北方湖光光电有限公司 Multifunctional charging solenoid
CN104868295A (en) * 2015-04-03 2015-08-26 成都威思霍克科技发展有限公司 Intelligent connector adopting electromagnetic separation and use method thereof
CN205282819U (en) * 2015-10-12 2016-06-01 泰科电子(上海)有限公司 On --spot wiring connector of detachable and on --spot wiring connector component of detachable
CN207368407U (en) * 2017-08-15 2018-05-15 杭州航天电子技术有限公司 A kind of negative peak mechanism that disappears suitable for separation connector
CN109755998A (en) * 2018-12-21 2019-05-14 中国航天时代电子有限公司 A kind of more satellite separation release power-supply controllers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6174232B1 (en) * 2016-11-25 2017-08-02 株式会社ユニバーサルビュー Pinhole contact lens and smart contact system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132389A (en) * 1977-04-21 1978-11-18 Siemens Ag Indicating tester for voltage* voltage polarity* and continuity of electric conductor
JP2009231064A (en) * 2008-03-24 2009-10-08 Otowa Denki Kogyo Kk Spd live-line separating device
CN201238112Y (en) * 2008-08-14 2009-05-13 中航光电科技股份有限公司 Automatic-separation electric connector and its plug
CN201521700U (en) * 2009-09-21 2010-07-07 邵阳维克液压有限责任公司 Solenoid valve controller
CN102938576A (en) * 2012-11-21 2013-02-20 无锡北方湖光光电有限公司 Multifunctional charging solenoid
CN104868295A (en) * 2015-04-03 2015-08-26 成都威思霍克科技发展有限公司 Intelligent connector adopting electromagnetic separation and use method thereof
CN205282819U (en) * 2015-10-12 2016-06-01 泰科电子(上海)有限公司 On --spot wiring connector of detachable and on --spot wiring connector component of detachable
CN207368407U (en) * 2017-08-15 2018-05-15 杭州航天电子技术有限公司 A kind of negative peak mechanism that disappears suitable for separation connector
CN109755998A (en) * 2018-12-21 2019-05-14 中国航天时代电子有限公司 A kind of more satellite separation release power-supply controllers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
脱落(分离)连接器分离系统的设计研究;陈召辉;机电元件;第36卷(第04期);第14-16页+第32页 *

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