CN103259329A - Direct-current multiple-power switch-over switch - Google Patents

Direct-current multiple-power switch-over switch Download PDF

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Publication number
CN103259329A
CN103259329A CN 201310203338 CN201310203338A CN103259329A CN 103259329 A CN103259329 A CN 103259329A CN 201310203338 CN201310203338 CN 201310203338 CN 201310203338 A CN201310203338 A CN 201310203338A CN 103259329 A CN103259329 A CN 103259329A
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switch
circuit
power
direct
single
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CN 201310203338
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Chinese (zh)
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CN103259329B (en )
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胡博峰
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南京海勇电子科技有限公司
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Abstract

The invention discloses a direct-current multiple-power switch-over switch, wherein two direct-current power supplies are connected with the input side of the direct-current multiple-power switch-over switch, a load is connected with the load side of the direct-current multiple-power switch-over switch, and an option switch is connected with the control side of the direct-current multiple-power switch-over switch. The direct-current multiple-power switch-over switch comprises an operating circuit, a single-chip microcomputer, a control circuit, driving circuits and switching tubes. The driving circuits comprise a driving circuit A and a driving circuit B. The switching tubes comprise a switching tube A and a switching tube B. The control circuit, the single-chip microcomputer, the driving circuit A, the switching tubes and the driving circuit B are connected in sequence. The operating circuit is connected with the single-chip microcomputer and supplies working power to the single-chip microcomputer. The control circuit processes an externally input selection signal and inputs the externally input selection signal to the single-chip microcomputer. The single-chip microcomputer gives an order according to the externally input selection signal input by the control circuit. The driving circuits drive the switching tubes to be switched off or switched on according to the order of the single-chip microcomputer. The switching tubes are both triodes. The direct-current multiple-power switch-over switch can bear a large load, can switch over in a battery pack, and is sensitive in response and reliable in operation.

Description

一种直流多电源切换开关 A DC power supply switch Multi

技术领域 FIELD

[0001] 本发明涉及电路技术领域,尤其涉及一种直流多电源切换开关。 [0001] Technical Field The present invention relates particularly to a multi-DC power switch.

背景技术 Background technique

[0002]目前使用的直流多电源切换开关,其电路图如图1所示,其主要包括电磁控制系统和机械切换系统,电磁控制系统包括控制开关11、12、13、A侧电源投入端子14、A侧电源跳闸端子16、B侧电源投入端子15、B侧电源跳闸端子17和辅助开关21。 [0002] Multi-DC power switch currently in use, a circuit diagram thereof shown in Figure 1, which includes an electromagnetic switching system and the mechanical control system, the control system includes a solenoid control switch 11,12,13, A-side power supply input terminal 14, A terminal-side power trip 16, B-side power supply input terminal 15, B-side power supply terminal 17 and the trip auxiliary switch 21.

[0003] 使用时,其按一定的要求(电压、电流、时间、频率等参数或者人工的操作)在A电源、B电源两路电源之间来回转换,该转换是通过A侧电源投入端子14 (记作A1、A2),B侧电源跳闸端子17 (记作BT1、BT2),B侧电源投入端子15 (记作B1、B2),A侧电源跳闸端子16 (记作AT1、AT2)的相互配合通电完成。 [0003] During operation, certain requirements (voltage, current, time, frequency and other parameters or manual operation) between the power supply A, B two power supply switch back and forth, the input terminal 14 is converted by the A side of the power supply (referred to as A1, A2), B-side power trip terminal 17 (denoted as BT1, BT2), B-side power supply input terminal 15 (referred to as B1, B2), a-side power trip terminal 16 (referred to as AT1, AT2) of cooperating complete power. 该转换的实现过程如下: The implementation process of conversion as follows:

当A电源合闸时,应先给B电源侧跳闸端子17信号,分闸线圈工作,完成B侧端子拖扣,切断B电源;再给A侧电源投入端子14信号,合闸线圈工作,完成A侧端子合闸,接通A电源,继而完成整个转换功能; When A power switch on, the power source side B should give a trip signal terminal 17, opening coil working, drag to complete the buckle-side terminal B, cut off the power supply B; A side to give a signal power input 14, closing the work coil terminals, complete A closing-side terminal, the power supply is turned on A, and then complete the conversion function;

当B电源合闸时,应先给A电源侧跳闸端子16信号,分闸线圈工作,完成A侧端子拖扣,切断A电源;再给B侧电源投入端子15信号,合闸线圈工作,完成B侧端子合闸,接通B电源,继而完成整个转换功能。 When the B switch on the power supply, the power supply side should give A trip signal terminal 16, opening coil working, drag to complete the buckle-side terminal A, A power cut off; give B-side input terminal of the power supply signal 15, the closing coil, and completed closing side terminal B, B power is turned on, and then complete the conversion.

[0004] 这种转换开关,其切换时间长,线路和结构复杂,容易出故障。 [0004] This switch that switches a long time, and complex circuit structure, prone to failure. 再者,机械切换系统采用机械式接触,切换时容易产生电弧;机械式接触的接触电阻较大,容易发热使其失效,甚至起火,安全性差。 Furthermore, the mechanical system uses a mechanical switch contact arcing when switching is easy; mechanical contact with the contact resistance is large, it is easy to heat failure, or even a fire, poor security. 发明内容 SUMMARY

[0005] 本发明的目的是提供一种能快速切换直流电路,且不产生电弧,安全可靠的直流多电源切换开关。 [0005] The object of the present invention is to provide a fast switching DC circuit, without arcing, secure multi-DC power switch.

[0006] 本发明所采用的技术方案具体是这样实现的: [0006] The technical solution used in the invention is specifically implemented as follows:

本发明提供了一种直流多电源切换开关,其输入侧接入多个直流电源,负载侧接入负载,控制侧接入选择开关,所述直流多电源切换开关包括工作电路、单片机、控制电路、驱动电路和开关管,所述驱动电路包括驱动电路A和驱动电路B,所述开关管包括开关管A和开关管B,所述控制电路、所述单片机、所述驱动电路A、所述开关管与所述驱动电路B依次连接,所述工作电路与所述单片机连接并为其提供工作电源,所述控制电路处理外部输入选择信号并输入给所述单片机,所述单片机根据所述控制电路输入的信号发出指令,所述驱动电路根据所述单片机的指令,驱动所述开关管的关闭或者导通,所述开关管为三级管。 The present invention provides a multi-DC power switch, a plurality of input-side access to the DC power supply, a load-side load access, the access control-side selection switch, the power switch comprises a plurality of DC operating circuit, microcontroller, the control circuit , and a switch driving circuit, the driving circuit includes a driving circuit A and the drive circuit B, the switch comprises a switch A and switch B, the control circuit of the microcontroller, the drive circuit A, the switch and the drive circuit B in turn connected to a working circuit and the single chip and connected to provide operating power, said control circuit for processing an external input signal and input to the microcontroller, according to the control of the microcontroller instructs the input signal circuit, the driving circuit according to an instruction of the microcontroller, the drive is turned off or the switch, the switch is a triode.

[0007] 所述直流多电源切换开关为直流双电源切换。 [0007] The DC power supply switch is switched to multi-DC dual power.

[0008] 本发明的直流多电源切换开关,能承载大的电流、负载;可快速在电池组中切换,反应灵敏,动作可靠。 [0008] The present invention is a multi-DC power switch, can carry large current loads; fast switching in a battery pack, responsive, and reliable operation. 附图说明 BRIEF DESCRIPTION

[0009] 图1是现有直流多电源切换开关的电路图。 [0009] FIG. 1 is a circuit diagram of a conventional DC power supply switching multiple switches.

[0010] 图2是本发明具体实施例的直流多电源切换开关的电路图。 [0010] FIG 2 is a specific embodiment of the current invention is a circuit diagram of a multi power switch.

[0011] 图3是本发明具体实施例的直流多电源切换开关的工作原理示意图。 [0011] FIG. 3 is a schematic diagram of the current embodiment of the present invention, multiple power switch works.

具体实施方式 detailed description

[0012] 为使本发明的上述目的、特征和优点能够更加明显易懂,下面结合附图对本发明的具体实施方式做详细的说明,使本发明的上述及其它目的、特征和优势将更加清晰。 [0012] For the above-described objects, features and advantages of the present invention can be more fully understood in conjunction with the accompanying drawings a detailed description of specific embodiments of the present invention, the above and other objects, features and advantages of the invention will become more apparent . 在全部附图中相同的附图标记指示相同的部分。 In the drawings the same reference numerals indicate the same parts. 并未刻意按比例绘制附图,重点在于示出本发明的主旨。 The drawings are deliberately not to scale, emphasis being placed upon illustrating the gist of the present invention.

[0013] 下面结合图2至图3对本发明的直流多电源切换开关的具体实施例进行详细说明,本发明具体实施例的直流多电源切换开关是以直流双电源切换开关为例进行说明。 [0013] below with reference to FIGS. 2 to FIG. 3 embodiment of the DC power source switch of the present invention is described in detail plurality DC specific embodiments of the present invention is a multi-DC power switch dual power switch is described as an example.

[0014] 图2是本发明具体实施例的直流多电源切换开关的电路图,本发明实施例的直流多电源切换开关,其输入侧31接电源A80或电源B90,负载侧33接入负载,控制侧32接入手动控制的选择开关,直流多电源切换开关包括工作电路70、单片机10、控制电路20、驱动电路和开关管,驱动电路包括驱动电路A30和驱动电路B40,开关管包括开关管A50和开关管B60,控制电路20、单片机10、驱动电路A30、开关管与驱动电路B40依次连接,工作电路70与单片机10连接并为其提供工作电源,控制电路20处理外部输入选择信号并输入给单片机10,单片机10根据控制电路20输入的信号发出指令,驱动电路根据单片机10的指令,驱动开关管的关闭或者导通,实现在多组电源中的切换。 [0014] FIG 2 is a specific embodiment of the current invention is a circuit diagram of a multi power switch, an embodiment of the present invention, the DC power multiple switch, the input side 31 to the power supply A80 or B90, the load-side load 33 access control manual selection switch 32 side of the access control, the DC switch includes a multi-power operation circuit 70, microcontroller 10, the control circuit 20, and a switch driving circuit, the driving circuit includes a drive circuit and the drive circuit B40 A30, A50 switch comprises a switching transistor and a switch B60, the control circuit 20, microcontroller 10, a drive circuit A30, B40 switch sequentially connected to the drive circuit, the operation circuit 70 and the microcontroller 10 is connected to provide operating power, the control circuit 20 processes externally input selection signal and input to the microcontroller 10, the microcontroller 10 instructs the control circuit 20 according to a signal input, a drive circuit 10 according to instructions from the MCU, the driving switch is turned off or turned on the tube, to achieve switching of the plurality of sets of the power supply.

[0015] 本发明中,开关管为三级管。 [0015] In the present invention, the switch for the three tubes.

[0016] 图3是本发明具体实施例的直流多电源切换开关的工作原理示意图,如图3所示,当直流电源A、电源B分别接入后,工作电路提供单片机工作电压,单片机开始工作,系统初始化,当控制侧无输入信号时,开关管A、开关管B处于关断状态;当控制侧有电源A导通信号时,开关管A导通,开关管B关断;当控制侧有电源B导通信号时,开关管B导通、开关管A关断,初始化完成。 [0016] FIG. 3 is a DC embodiment of the present invention is a multi-switch power switching operation principle diagram shown in Figure 3, when the DC power supply A, B access the power, voltage operation circuit provides the microcontroller, the microcontroller starts work system initialization, when the control side is no input signal, the switch A, the switch B is in the off state; when the control side of the power supply A on signal, the switch A is turned on, the switch B is turned off; when the control side when a power-on signal B, the switch B is turned on, the switch A is turned off, the initialization is complete.

[0017] 当单片机接收到由电源A到电源B的切换信号AB时,单片机发出指令,驱动电路A工作,切断开关管A,然后驱动电路B工作,导通开关管B,系统返回,切换动作完成,电源B被导通,向负载供电;当单片机接收到由电源B到A的切换信号BA时,单片机发出指令,驱动电路B工作,切断开关管B,然后驱动电路A工作,导通开关管A,系统返回,切换动作完成,电源A被导通,向负载供电。 [0017] When the microcontroller receives the switching signal AB from the power source A to the power supply B, the microcontroller issues a command, the driving circuit A work off switch A, and the drive circuit B job is turned on switch B, the system returns, the switching operation is completed, the power supply B is turned on, power to the load; when the microcontroller receives the switching signal BA from the power supply B to a, the microcontroller issues a command, the driving circuit B to work to cut off the switch B, and driving circuit a work turning on the switch A pipe, the system returns, the switching operation is completed, the power supply A is turned on, power to the load.

[0018] 本发明的直流多电源切换开关,能承载大的电流、负载;可快速在电池组中切换,反应灵敏,动作可靠;在切换中无电弧的产生。 [0018] The present invention is a multi-DC power switch, can carry large current loads; fast switching in a battery pack, responsive, reliable operation; no arcing in the handover.

[0019] 在以上的描述中阐述了很多具体细节以便于充分理解本发明。 [0019] numerous specific details are set forth in the above description in order to provide a thorough understanding of the present invention. 但是以上描述仅是本发明的较佳实施例而已,本发明能够以很多不同于在此描述的其它方式来实施,因此本发明不受上面公开的具体实施的限制。 However, the foregoing description is only preferred embodiments of the present invention, it is possible in many other ways than in the embodiments described herein to the present invention, the present invention is not limited so particular embodiments disclosed above. 同时任何熟悉本领域技术人员在不脱离本发明技术方案范围情况下,都可利用上述揭示的方法和技术内容对本发明技术方案做出许多可能的变动和修饰,或修改为等同变化的等效实施例。 While any person skilled in the art without departing from the scope of the present invention, can be disclosed by the above methods and technical content may make numerous variations and modifications of the technical solution of the present invention, as equivalent variations or modifications equivalent embodiments example. 凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化及修饰,均仍属于本发明技术方案保护的范围内。 All without departing from the technical solutions of the present invention, any simple modification based on the technical essence of the present invention made of the above Example, equivalents, modifications and variations, provided they fall within the scope of protection of the present invention.

Claims (2)

  1. 1. 一种直流多电源切换开关,其特征在于,其输入侧接入多个直流电源,负载侧接入负载,控制侧接入选择开关,所述直流多电源切换开关包括工作电路、单片机、控制电路、驱动电路和开关管,所述驱动电路包括驱动电路A和驱动电路B,所述开关管包括开关管A和开关管B,所述控制电路、所述单片机、所述驱动电路A、所述开关管与所述驱动电路B依次连接,所述工作电路与所述单片机连接并为其提供工作电源,所述控制电路处理外部输入选择信号并输入给所述单片机,所述单片机根据所述控制电路输入的信号发出指令,所述驱动电路根据所述单片机的指令,驱动所述开关管的关闭或者导通,所述开关管为三级管。 A multi-DC power switch, wherein the input side of the DC power supply a plurality of access, access to the load-side load, the control-side access selection switch, the power switch comprises a plurality of DC operating circuit, microcontroller, a control circuit, and a switch driving circuit, the driving circuit includes a driving circuit A and the drive circuit B, the switch comprises a switch A and switch B, the control circuit of the microcontroller, the drive circuit A, the switching transistor and the driving circuit B are sequentially connected, said operating circuit is connected to the microcontroller and to provide operating power, said control circuit for processing an external input signal and input to the microcontroller, the microcontroller according to the said control signal instructs the input circuit, the driving circuit according to an instruction of the microcontroller, the drive is turned off or the switch, the switch is a triode.
  2. 2.根据权利要求I所述的直流多电源切换开关,其特征在于,所述直流多电源切换开关为直流双电源切换。 2. DC I as claimed in claim multiple power switch, wherein said plurality of DC to DC switching power supply switch dual power.
CN 201310203338 2013-05-28 2013-05-28 A DC power supply switch Multi CN103259329B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030220026A1 (en) * 2002-04-15 2003-11-27 Fuji Electric Co., Ltd. Switching power supply unit
CN200983517Y (en) * 2006-12-12 2007-11-28 郴州市东塘电气设备有限公司 Dual-power supply automatic switching device
CN201536273U (en) * 2009-11-04 2010-07-28 佛山市柏克电力设备有限公司 Double power supply conversion static switch
CN201750204U (en) * 2010-07-20 2011-02-16 重庆市电力公司电网检修分公司 Direct current double-power-supply intelligent switching device
CN203352271U (en) * 2013-05-28 2013-12-18 南京海勇电子科技有限公司 Direct-current power change-over switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030220026A1 (en) * 2002-04-15 2003-11-27 Fuji Electric Co., Ltd. Switching power supply unit
CN200983517Y (en) * 2006-12-12 2007-11-28 郴州市东塘电气设备有限公司 Dual-power supply automatic switching device
CN201536273U (en) * 2009-11-04 2010-07-28 佛山市柏克电力设备有限公司 Double power supply conversion static switch
CN201750204U (en) * 2010-07-20 2011-02-16 重庆市电力公司电网检修分公司 Direct current double-power-supply intelligent switching device
CN203352271U (en) * 2013-05-28 2013-12-18 南京海勇电子科技有限公司 Direct-current power change-over switch

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