WO2011144180A2 - 一种电池组防反接的控制电路及基站电源*** - Google Patents

一种电池组防反接的控制电路及基站电源*** Download PDF

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Publication number
WO2011144180A2
WO2011144180A2 PCT/CN2011/075443 CN2011075443W WO2011144180A2 WO 2011144180 A2 WO2011144180 A2 WO 2011144180A2 CN 2011075443 W CN2011075443 W CN 2011075443W WO 2011144180 A2 WO2011144180 A2 WO 2011144180A2
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WO
WIPO (PCT)
Prior art keywords
control circuit
diode
battery pack
power supply
normally open
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Application number
PCT/CN2011/075443
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English (en)
French (fr)
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WO2011144180A3 (zh
Inventor
邹善勤
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP11783097.6A priority Critical patent/EP2498369B1/en
Priority to PCT/CN2011/075443 priority patent/WO2011144180A2/zh
Priority to CN201180001022.4A priority patent/CN102369644B/zh
Publication of WO2011144180A2 publication Critical patent/WO2011144180A2/zh
Publication of WO2011144180A3 publication Critical patent/WO2011144180A3/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0034Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits

Definitions

  • the present invention relates to the field of power supply control technologies, and in particular, to a control circuit for a battery pack anti-reverse connection and a base station power supply system.
  • a high-power base station power system it is often necessary to configure one or more sets of large-capacity battery packs as backup power to power the base station equipment.
  • Medium and large-capacity base station power supplies often need to provide a current of a few ten to several hundred amperes, and the configured battery pack generally has several hundred amperes.
  • the common diode anti-reverse circuit or the anti-reverse circuit controlled by the MOS tube can no longer be adapted. If the battery is accidentally reversed, it is equivalent to a short circuit, which will generate a huge instantaneous current. If it is not protected, it will inevitably damage the battery and the device itself. However, the fuse is automatically blown only by the fuse in the main circuit to protect the system and cause equipment damage.
  • an object of the present invention is to provide a control circuit for a battery pack anti-reverse connection and a base station power supply, which can solve the problem of reverse connection protection when a medium-capacity battery is connected to a base station power supply system.
  • Embodiments of the present invention provide a control circuit for preventing and reversing a battery pack, the circuit comprising: a normally open contactor, a first normally open relay, a first diode, a second diode, and a second normally open Type relay, third diode, controller;
  • a first contact of the normally open contactor serves as a first input end of the control circuit, and a second contact of the normally open contactor is connected to a cathode of the first diode;
  • the anode of the first diode is connected to the movable contact of the first normally open relay, and the static contact of the first normally open relay is connected to the second of the control coil of the normally open contactor End
  • a first end of the control coil of the normally open contactor is connected to a cathode of the third diode, and an anode of the third diode serves as a second input end of the control circuit;
  • a first end of the control coil of the first normally open relay is connected to the second normally open relay a movable contact
  • a second end of the control coil of the first normally open relay is connected to an anode of the second diode
  • a cathode of the second diode is connected to the first open contactor
  • the static contact of the second normally-open type relay is connected to the common end of the first end of the control coil of the normally open contactor and the cathode of the third diode, and the control of the second normally-open type relay Both ends of the coil are connected to the output end of the controller;
  • the anode of the third diode is also the first output end of the control circuit, and the second contact of the normally open contactor is the second output end of the control circuit;
  • the power positive input terminal and the negative input terminal of the controller are respectively connected to the first output end and the second output end of the control circuit.
  • the embodiment of the present invention further provides a base station power supply, including a battery pack and a rectification power supply module, where the base station power supply further includes a control circuit for preventing and reversing the battery pack;
  • the battery pack is connected between the first input end and the second input end of the control circuit of the battery pack anti-reverse connection; the rectifying power supply module is connected to the first output of the control circuit of the anti-reverse connection of the battery pack Between the end and the second output.
  • the present invention discloses the following technical effects:
  • the control circuit of the embodiment of the present invention controls the operation of the control line of the second relay by sending a control command by the controller, thereby controlling the conduction or disconnection of the normally open contactor, thereby realizing protection
  • the battery pack is connected to or disconnected from the base station power system. Therefore, in the embodiment of the present invention, the automatic access or disconnection of the battery pack in the base station power supply system can be realized. Meanwhile, the circuit described in the embodiment of the present invention can also realize the generation of a large-capacity battery pack in the base station power supply system. When the fault is reversed, the battery pack is disconnected from the base station power system in time to protect the system from working normally.
  • control circuit of the embodiment of the invention can realize the reverse connection protection problem when the medium-capacity battery is connected to the base station power system.
  • FIG. 1 is a control circuit diagram of a battery pack anti-reverse connection according to an embodiment of the present invention.
  • an object of the present invention is to provide a control circuit for a battery pack anti-reverse connection and a base station power supply system, which can solve the problem of reverse connection protection when a medium-sized battery pack is connected to a base station power supply system.
  • the control circuit includes: a normally open contactor 102, a first normally open relay 103, a first diode 104, a second diode 105, a second normally open relay 106, a third diode 107, The controller 111 and the controller anti-reverse protection module 112.
  • the first contact of the normally open contactor 102 serves as a first input end of the control circuit, connected to the cathode of the protected battery pack 101, and the second contact of the normally open contactor 102 is connected to the first contact The cathode of a diode 104.
  • the anode of the first diode 104 is connected to the movable contact of the first normally open relay 103, and the static contact of the first normally open relay 103 is connected to the control line of the normally open contactor 102.
  • the second end of the cockroach is connected to the movable contact of the first normally open relay 103, and the static contact of the first normally open relay 103 is connected to the control line of the normally open contactor 102.
  • the first end of the control coil of the normally open contactor 102 is connected to the cathode of the third diode 107, and the anode of the third diode 107 is used as the second input end of the control circuit.
  • the anode of the protected battery pack 101 is described.
  • a first end of the control coil of the first normally-on relay 103 is connected to a movable contact of the second normally-on relay 106, and a second end of the control coil of the first normally-on relay 103
  • the anode of the second diode 105 is connected to the first contact of the normally open contactor 102, that is, the first input terminal of the control circuit.
  • the static contact of the second normally-on type relay 106 is connected to the common end of the first end of the control coil of the normally open contactor 102 and the cathode of the third diode 107, the second normally open type Both ends of the control line ⁇ of the relay 106 are connected to the output of the controller 111.
  • the anode of the third diode 107 (ie, the second input end of the control circuit) is also the first output end of the control circuit, and the second contact of the normally open contactor 102 is the A second output of the control circuit.
  • the power positive input terminal and the negative input terminal of the controller 111 are respectively connected to the first output end and the second output end of the control circuit.
  • control circuit may further include: a controller power supply anti-reverse module 112, wherein the controller power supply anti-reverse module 112 is connected to the power input end of the controller 111. Between the controller and the power supply.
  • the controller power supply anti-reverse module 112 can be implemented by using a diode. Specifically, the power supply positive input terminal or the power supply negative input terminal of the controller 111 and the controller power supply A diode is connected in series to prevent reverse connection protection of the controller 111.
  • the diode may be connected in series to the positive input terminal of the power supply of the controller 111 or the negative input terminal of the power supply, and the diodes may be connected in series according to the direction of normal current flow.
  • the diode when the diode is connected to the positive input end of the power supply of the controller 111, the anode of the diode is connected to the positive pole of the controller power supply, and the cathode thereof is connected to the positive input end of the power supply of the controller 111.
  • the controller power When the controller power is normally connected, the diode is turned on and the controller 111 operates normally; once the controller power is normally connected
  • the power supply of 111 is reversed, that is, the anode of the diode 111 is connected to the negative pole of the power supply, and the diode is turned off to protect the controller 111.
  • the diode When the diode is connected to the negative input terminal of the controller 111, the anode of the diode is connected to the negative input terminal of the controller 111, and the cathode thereof is connected to the negative terminal of the controller power supply.
  • the power of the controller 111 When the power of the controller 111 is normally connected, the diode is turned on, and the controller 111 operates normally; once the power of the controller 111 is reversed, the cathode of the diode 111 is connected to the positive pole of the power supply, and the diode is turned off,
  • the controller 111 serves as a protection.
  • 112 can be set individually or integrated in one.
  • the conduction and disconnection of the normally open contactor 102 are controlled by the controller 111. Specifically, the controller 111 sends a control command to control the second normally open relay.
  • control line 106 106 of 106 controls the conduction or disconnection of the normally open contactor 102, thereby enabling the protected battery pack to be connected to or disconnected from the base station power supply system.
  • control line of the normally open contactor 102, the first normally open relay 103, and the second normally open relay 106 are connected in parallel with a relay reverse diode.
  • the conventional technology in the art is not described here.
  • the working principle of the control circuit is:
  • the control circuit of the battery anti-reverse connection is such that the first input end of the control circuit is connected to the cathode of the protected battery pack 101, and the second input end is connected to the anode of the protected battery pack 101;
  • the first output end of the circuit is connected to the positive pole of the base station of the base station power system (shown as RTN+ in FIG. 1), and the second output end is connected to the negative pole of the busbar of the system (shown as NEG- in FIG. 1).
  • the rectified power module 113 of the base station power system is connected between the positive pole and the negative pole of the system bus. As shown in Figure 1, system load 114 is also connected between the positive and negative terminals of the system bus.
  • the rectifying power module 113 is configured to convert the AC power to the DC power, and provide a DC power to the base station power system to supply the base station load 114.
  • the controller 111 cannot be powered by the controller anti-reverse protection module 112, and cannot send a control signal to the second
  • the control line of the open type relay 106 is such that the control line of the second normally open type relay 106 does not operate.
  • the control line of the first normally-on type relay 103 is also inoperable due to the reverse cut-off of the second diode 105 and the third diode 107, and the first normally-on type relay 103
  • the movable contact is disconnected, so that the control coil of the normally open contactor 102 is inoperable, the movable contact of the normally open contactor 102 is disconnected, so that the battery pack 101 cannot be connected to the system, and the base station power system is in Protection status.
  • the system busbar When the base station power system is powered by the rectification power module 113, the system busbar is normally powered. At this time, if the battery pack 101 is reversed, even if the controller 111 sends a control signal to the second normally-on relay 106. ⁇ , but the control line of the second normally-on type relay 106 is also inoperable due to the reverse cut-off of the second diode 105 and the third diode 107, the first normally-on type relay 103 The movable contact is disconnected, so that the control coil of the normally open contactor 102 is inoperable, the movable contact of the normally open contactor 102 is disconnected, so that the battery pack 101 cannot be connected to the system, and the base station power system is at Protection status.
  • the controller 111 When the battery pack 101 is normally connected, the controller 111 is normally powered on, and the movable contact of the second normally-on type relay 106 is controlled to be closed. At this time, the first normally-on type relay 103 is energized, and the movable contact of the first normally-open type relay 103 is closed, so that the control line of the normally-open type contactor 102 operates, the normally-open type contactor The movable contact of 102 is closed and the battery pack 101 is normally connected to the system bus.
  • the battery pack 101 when only the battery pack 101 supplies power to the system and the battery pack 101 is normally accessed (the rectification power supply module 113 does not work at this time), the battery pack 101 cannot directly access the system mother.
  • the row can only be connected to the system busbar under the control of the controller 111.
  • the control of the first normally-on type relay 103 A second diode 105 connected in series on the wire is connected to the negative electrode of the battery pack 101 (shown as BAT- in FIG. 1).
  • the cathode of the first diode 104 connected in series on the circuit of the movable contact of the first normally-open type relay 103 is connected to the negative pole of the system bus (shown as NEG- in FIG. 1).
  • the control circuit of the embodiment of the present invention sends a control command by the controller 111 to control the operation of the control coil of the second normally-on type relay 106, thereby controlling the conduction or disconnection of the normally-open contactor 102.
  • the protected battery pack is connected to or disconnected from the base station power system. Therefore, in the embodiment of the present invention, the automatic access or disconnection of the battery pack in the base station power supply system can be realized.
  • the circuit in the embodiment of the present invention can also realize that when the battery pack of the base station power supply system is reversely connected, The battery pack is disconnected from the base station power system in time to protect the system from working normally.
  • control circuit of the embodiment of the present invention can realize the reverse protection problem when the medium-sized and large-capacity battery is connected to the base station power supply system.
  • the first short-circuit protection circuit 108 is disposed, and the first short-circuit protection circuit 108 is connected to the control line of the normally-open contactor 102.
  • the second end of the crucible is between the stationary contact of the first normally open relay 103.
  • a second short-circuit protection circuit 109 is further disposed, and the second short-circuit protection circuit 109 is connected to the normally-open contactor 102. Between the first end of the control coil and the stationary contact of the second normally open relay 106.
  • the first short circuit protection circuit 108 and the second short circuit protection circuit 109 may each adopt a short circuit protection component.
  • the short circuit protection component may be a PTC (Positive Temperature Coefficient), a thermistor, or the like.
  • the control circuit may further include: an alarm unit 110.
  • the alarm unit 110 is connected between the first input end and the second input end of the control circuit, and when the battery anti-reverse control circuit is in use, the alarm unit 110 is connected to the Between the anode and the cathode of the protected battery pack 101.
  • the alarm unit 110 operates to issue a warning to remind the operator that a battery pack reverse fault occurs, so that the operator can repair the fault in time.
  • the alarm unit 110 may be an audible alarm. As shown in FIG. 1, the alarm unit 110 may include: a fourth diode 115, a speaker 116, and an inductor 117.
  • a cathode of the fourth diode 115 is connected to a first input end of the control circuit, an anode of the fourth diode 115 is connected to a first end of the speaker 116; and a second end of the speaker 116 is connected
  • the second input of the control circuit is connected through the inductor 117.
  • the fourth diode 115 When the battery pack 101 is normally accessed, the fourth diode 115 is reversely turned off, the two ends of the speaker 116 are disconnected, the alarm unit 110 is not working; when the battery pack 101 is reversed The fourth diode 115 is turned on, the speaker 116 is turned on, and the alarm unit 110 emits an audible warning.
  • the alarm unit 110 can also provide a lighting alarm, and only a suitable light emitting diode can be used.
  • the embodiment of the present invention further provides a base station power supply system, where the base station power supply system includes: a battery pack, a rectification power supply module, and a control circuit for preventing reverse connection of the battery pack.
  • the base station power supply system includes: a battery pack, a rectification power supply module, and a control circuit for preventing reverse connection of the battery pack.
  • the control circuit for preventing reverse connection of the battery pack is the same as the control circuit described in the foregoing embodiments of the present invention.
  • the battery pack is connected between the first input end and the second input end of the control circuit of the battery pack anti-reverse connection; the rectifying power supply module is connected to the first output of the control circuit of the anti-reverse connection of the battery pack Between the end and the second output.
  • the anti-reverse connection control circuit of the battery pack is configured to disconnect the battery pack from the base station power supply system in time when the battery pack of the base station power supply system is reversely connected, and the protection system works normally.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种电池组(101)防反接的控制电路包括常开型接触器(102)、第一常开型继电器(103)、第一二极管(104)、第二二极管(105)、第二常开型继电器(106)、第三二极管(107)和控制器(111)。控制器(111)通过发送控制指令控制第二常开型继电器(106)的控制线圈工作与否,进而控制常开型接触器(102)导通或断开,从而将被保护的电池组(101)接入基站电源***或从***断开。还提供了一种基站电源***。采用该控制电路,可以将电池组自动接入基站电源***或从***断开,并且当中大容量电池组反接时,可以及时将电池组从电源***断开,从而保护了***。

Description

一种电池组防反接的控制电路 ^站电源*** 技术领域 本发明涉及电源控制技术领域,特别是涉及一种电池组防反接的控制电路 及基站电源***。
背景技术
在大功率的基站电源***中,常常需要配置一组或多组大容量的电池组作 为后备电源给基站设备供电。中大容量的基站电源往往需要提供十几到几百安 培的电流, 所配置的电池组一般也有几百安时。
对于中大容量的基站电源,普通二极管防反接电路或 M0S管控制的防反接 电路已经不能适应了。 如果蓄电池不小心反接, 则相当于发生短路, 即会产生 巨大的瞬时电流。 如果不加保护, 则必然会损坏蓄电池和设备本身。 但仅靠主 路中的保险丝自动熔断来保护***也造成设备损坏。
因此, 必须设计防止中大容量的基站电源反接的电路, 既能保护电池反接 时不对设备造成损害, 也能在电池正常接入时可靠的工作。
发明内容
有鉴于此,本发明的目的在于提供一种电池组防反接的控制电路及基站电 源, 能够解决中大容量的电池接入基站电源***时的反接保护问题。
本发明实施例提供一种电池组防反接的控制电路, 所述电路包括: 常开型 接触器、 第一常开型继电器、 第一二极管、 第二二极管、 第二常开型继电器、 第三二极管、 控制器;
所述常开型接触器的第一触点作为该控制电路的第一输入端,所述常开型 接触器的第二触点接所述第一二极管的阴极;
所述第一二极管的阳极接所述第一常开型继电器的动触点,所述第一常开 型继电器的静触点接所述常开型接触器的控制线圏的第二端;
所述常开型接触器的控制线圏的第一端接所述第三二极管的阴极,所述第 三二极管的阳极作为该控制电路的第二输入端;
所述第一常开型继电器的控制线圏的第一端接所述第二常开型继电器的 动触点, 所述第一常开型继电器的控制线圏的第二端接所述第二二极管的阳 极, 所述第二二极管的阴极接所述常开型接触器的第一触点;
所述第二常开型继电器的静触点接所述常开型接触器的控制线圏的第一 端与第三二极管的阴极的公共端,所述第二常开型继电器的控制线圏的两端接 所述控制器的输出端;
所述第三二极管的阳极亦为所述控制电路的第一输出端,所述常开型接触 器的第二触点为所述控制电路的第二输出端;
所述控制器的电源正输入端和负输入端分别接所述控制电路的第一输出 端和第二输出端。
本发明实施例还提供一种基站电源, 包括电池组和整流电源模块, 所述基 站电源还包括所述的电池组防反接的控制电路;
所述电池组接在所述电池组防反接的控制电路的第一输入端与第二输入 端之间;所述整流电源模块接在所述电池组防反接的控制电路的第一输出端与 第二输出端之间。
根据本发明提供的具体实施例, 本发明公开了以下技术效果:
本发明实施例所述控制电路,通过控制器发送控制指令,控制所述第二继 电器的控制线圏的工作与否, 进而控制常开型接触器的导通或断开,从而实现 将被保护的电池组接入基站电源***或从***断开。 由此, 本发明实施例, 能 够实现基站电源***中, 电池组的自动接入或断开; 同时, 本发明实施例所述 电路,还能实现当基站电源***的中大容量的电池组发生反接故障时,及时将 电池组从所述基站电源***中断开, 保护***正常工作。
与常规的仅用普通二极管防反接电路或 M0S管控制的防反接电路,本发明 实施例所述控制电路能够实现对中大容量的电池接入基站电源***时的反接 保护问题。
附图说明 图 1为本发明实施例的电池组防反接的控制电路图。
具体实施方式 为使本发明的上述目的、特征和优点能够更加明显易懂, 下面结合附图和 具体实施方式对本发明作进一步详细的说明。 有鉴于此,本发明的目的在于提供一种电池组防反接的控制电路及基站电 源***, 能够解决中大容量的电池组接入基站电源***时的反接保护问题。
参照图 1 , 为本发明实施例的电池组防反接的控制电路图。 所述控制电路 包括: 常开型接触器 102、 第一常开型继电器 103、 第一二极管 104、 第二二 极管 105、 第二常开型继电器 106、 第三二极管 107、 控制器 111、 控制器防反 接保护模块 112。
所述常开型接触器 102的第一触点作为该控制电路的第一输入端,接被保 护的电池组 101的阴极,所述常开型接触器 102的第二触点接所述第一二极管 104的阴极。
所述第一二极管 104的阳极接所述第一常开型继电器 103的动触点,所述 第一常开型继电器 103的静触点接所述常开型接触器 102的控制线圏的第二 端。
所述常开型接触器 102的控制线圏的第一端接所述第三二极管 107的阴 极, 所述第三二极管 107的阳极作为该控制电路的第二输入端,接所述被保护 的电池组 101的阳极。
所述第一常开型继电器 103 的控制线圏的第一端接所述第二常开型继电 器 106的动触点,所述第一常开型继电器 103的控制线圏的第二端接所述第二 二极管 105的阳极,所述第二二极管 105的阴极接所述常开型接触器 102的第 一触点, 也即为接该控制电路的第一输入端。
所述第二常开型继电器 106的静触点接所述常开型接触器 102的控制线圏 的第一端与第三二极管 107的阴极的公共端,所述第二常开型继电器 106的控 制线圏的两端接所述控制器 111的输出端。
所述第三二极管 107的阳极(即为该控制电路的第二输入端)亦为所述控 制电路的第一输出端,所述常开型接触器 102的第二触点为所述控制电路的第 二输出端。
所述控制器 111 的电源正输入端和负输入端分别接所述控制电路的第一 输出端和第二输出端。
为了防止控制器 111反接, 所述控制电路还可以包括: 控制器电源防反接 模块 112, 所述控制器电源防反接模块 112接在所述控制器 111的电源输入端 和控制器电源之间。
由于控制器 111 的工作电流比较小, 因而, 所述控制器电源防反接模块 112可以采用二极管实现, 具体的, 在所述控制器 111的电源正输入端或电源 负输入端与控制器电源之间串接一二极管, 来实现对控制器 111 的防反接保 护。
所述二极管可以串接在所述控制器 111的电源正输入端或电源负输入端, 且该二极管按照电流正常流向的方向串接。
具体的, 当所述二极管接在所述控制器 111电源正输入端时, 所述二极管 的阳极接控制器电源的正极, 其阴极接所述控制器 111的电源正输入端。 当该 控制器电源正常接入时, 该二极管导通, 控制器 111正常工作; 一旦该控制器
111的电源发生反接, 即为所述二极管 111的阳极接电源负极,该二极管截止, 对控制器 111起保护作用。
当所述二极管接在所述控制器 111的电源负输入端时,所述二极管的阳极 接接所述控制器 111的电源负输入端, 其阴极接所述控制器电源的负极。 当该 控制器 111电源正常接入时, 该二极管导通, 控制器 111正常工作; 一旦该控 制器 111的电源发生反接, 即为所述二极管 111的阴极接电源正极, 该二极管 截止, 对控制器 111起保护作用。
优选地, 本发明实施例中, 所述控制器 111和所述控制器电源防反接模块
112可以单独设置, 也可以将二者集成在一体设置。
本发明实施例中, 所述常开型接触器 102的导通和断开由所述控制器 111 控制。 具体的, 所述控制器 111 发送控制指令, 控制所述第二常开型继电器
106的控制线圏的工作与否, 进而控制常开型接触器 102的导通或断开, 从而 实现将被保护的电池组接入基站电源***或从***断开。
需要说明的是, 本发明实施例中, 所述常开型接触器 102、 第一常开型继 电器 103以及第二常开型继电器 106的控制线圏两端均并联有继电器反并二极 管, 此为本领域的常规技术, 在此不再赘述。
该控制电路的工作原理为:
所述电池防反接的控制电路在使用时,使该控制电路的第一输入端接被保 护的电池组 101的阴极, 第二输入端接被保护的电池组 101的阳极; 该控制电 路的第一输出端接基站电源***母排的正极(如图 1 中 RTN+所示), 第二输 出端接所述***母排的负极(如图 1中 NEG-所示)。
所述基站电源***的整流电源模块 113接在***母排的正极和负极之间。 如图 1所示, ***负载 114也接在***母排的正极和负极之间。 其中, 所述整 流电源模块 113用于将 AC电源转换为 DC电源, 为所述基站电源***提供直 流电源, 为基站负载 114供电。
当基站电源***由电池组 101供电且该电池组 101发生反接时,所述控制 器 111因所述控制器防反接保护模块 112作用无法上电,无法发出控制信号给 所述第二常开型继电器 106的控制线圏,使得第二常开型继电器 106的控制线 圏不工作。 同时, 由于所述第二二极管 105和第三二极管 107的反向截止, 所 述第一常开型继电器 103的控制线圏也不能工作, 所述第一常开型继电器 103 的动触点断开,使得所述常开型接触器 102的控制线圏不能工作, 所述常开型 接触器 102的动触点断开,使得电池组 101无法接入***,基站电源***处于 保护状态。
当基站电源***由所述整流电源模块 113供电时, ***母排正常有电, 此 时, 若电池组 101出现反接, 即使控制器 111发出了控制信号给第二常开型继 电器 106的控制线圏, 但由于第二二极管 105和第三二极管 107的反向截止, 所述第二常开型继电器 106 的控制线圏也不能工作, 所述第一常开型继电器 103的动触点断开, 使得所述常开型接触器 102的控制线圏不能工作, 所述常 开型接触器 102的动触点断开,使得电池组 101不能接入***,基站电源*** 处于保护状态。
当所述电池组 101正常接入时, 所述控制器 111正常上电, 控制所述第二 常开型继电器 106的动触点闭合。 此时, 所述第一常开型继电器 103得电, 第 一常开型继电器 103的动触点闭合,使得所述常开型接触器 102的控制线圏工 作,所述常开型接触器 102的动触点闭合,所述电池组 101正常接入***母排。
本发明实施例中, 当仅由所述电池组 101 给***供电且所述电池组 101 正常接入时(此时整流电源模块 113不工作 ), 所述电池组 101并不能直接接 入***母排, 只能在控制器 111的控制下接入***母排。
具体的, 本发明实施例所述控制电路中, 所述第一常开型继电器 103的控 制线圏上串联的第二二极管 105接到所述电池组 101的负极(如图 1中 BAT- 所示)。 所述第一常开型继电器 103的动触点的电路上串联的第一二极管 104 的阴极接到***母排的负极(如图 1 中 NEG-所示)。 由此, 可以防止所述电 池组 101接入***后, ***立刻上电, 发生不确定的事故。
本发明实施例所述控制电路, 通过控制器 111发送控制指令, 控制所述第 二常开型继电器 106的控制线圏的工作与否,进而控制常开型接触器 102的导 通或断开,从而实现将被保护的电池组接入基站电源***或从***断开。由此, 本发明实施例, 能够实现基站电源***中, 电池组的自动接入或断开; 同时, 本发明实施例所述电路, 还能实现当基站电源***的电池组发生反接故障时, 及时将电池组从所述基站电源***中断开, 保护***正常工作。
与常规的仅用普通二极管防反接电路或 MOS管控制的防反接电路, 本发 明实施例所述控制电路能够实现对中大容量的电池接入基站电源***时的反 接保护问题。
优选地, 本发明实施例中, 为了防止该控制电路短路后烧毁电路和器件, 设置第一短路保护电路 108, 所述第一短路保护电路 108接在所述常开型接触 器 102的控制线圏的第二端和所述第一常开型继电器 103的静触点之间。
优选地, 本发明实施例中, 为了防止该控制电路短路后烧毁电路和器件, 还设置有第二短路保护电路 109, 所述第二短路保护电路 109接在所述常开型 接触器 102的控制线圏的第一端和所述第二常开型继电器 106的静触点之间。
本发明实施例中, 所述第一短路保护电路 108 和第二短路保护电路 109 均可以采用短路保护元件。 具体的, 所述短路保护元件可以为自恢复保险丝 PTC ( Positive Temperature Coefficient, 正温度系数)、 热敏电阻等。 当控制电 路发生短路时, 所述短路保护元件发热, 其阻值瞬间增大, 切断控制电路, 起 到保护作用; 当短路故障恢复时, 所述短路保护元件呈现低阻状态, 使控制电 路连通, 正常工作。
优选地, 本发明实施例中, 所述控制电路还可以包括: 告警单元 110。 所 述告警单元 110接在所述控制电路的第一输入端和第二输入端之间,当所述电 池防反接的控制电路在使用时,所述告警单元 110即为接在所述被保护的电池 组 101的阳极和阴极之间。 当所述电池组 101反接后, 所述告警单元 110工作, 发出警告, 提醒操作 人员发生电池组反接故障, 以便操作人员能够及时修复故障。
具体的, 所述告警单元 110可以为声音告警, 如图 1中所示, 所述告警单 元 110可以包括: 第四二极管 115、 扬声器 116、 电感 117。
所述第四二极管 115的阴极接所述控制电路的第一输入端,所述第四二极 管 115的阳极接所述扬声器 116的第一端;所述扬声器 116的第二端接通过所 述电感 117接所述控制电路的第二输入端。
当所述电池组 101正常接入时, 所述第四二极管 115反向截止, 所述扬声 器 116两端断开, 所述告警单元 110不工作; 当所述电池组 101发生反接时, 所述第四二极管 115导通, 接通所述扬声器 116, 所述告警单元 110发出声音 警告。
当然, 本发明实施例中, 所述告警单元 110还可以提供发光告警, 只需采 用适当的发光二极管即可。
相应的,本发明实施例还提供一种基站电源***,所述基站电源***包括: 电池组、 整流电源模块、 以及电池组防反接的控制电路。
所述电池组防反接的控制电路与本发明前述实施例所述的控制电路相同。 所述电池组接在所述电池组防反接的控制电路的第一输入端与第二输入 端之间;所述整流电源模块接在所述电池组防反接的控制电路的第一输出端与 第二输出端之间。
所述电池组防反接的控制电路用于当基站电源***的电池组发生反接故 障时, 及时将电池组从所述基站电源***中断开, 保护***正常工作。
以上对本发明所提供的一种电池组防反接的控制电路及基站电源***,进 述, 以上实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时, 对于本领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围 上均会有改变之处。 综上所述, 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种电池组防反接的控制电路, 其特征在于, 所述电路包括: 常开型 接触器、 第一常开型继电器、 第一二极管、 第二二极管、 第二常开型继电器、 第三二极管、 控制器;
所述常开型接触器的第一触点作为该控制电路的第一输入端,所述常开型 接触器的第二触点接所述第一二极管的阴极;
所述第一二极管的阳极接所述第一常开型继电器的动触点,所述第一常开 型继电器的静触点接所述常开型接触器的控制线圏的第二端;
所述常开型接触器的控制线圏的第一端接所述第三二极管的阴极,所述第 三二极管的阳极作为该控制电路的第二输入端;
所述第一常开型继电器的控制线圏的第一端接所述第二常开型继电器的 动触点, 所述第一常开型继电器的控制线圏的第二端接所述第二二极管的阳 极, 所述第二二极管的阴极接所述常开型接触器的第一触点;
所述第二常开型继电器的静触点接所述常开型接触器的控制线圏的第一 端与第三二极管的阴极的公共端,所述第二常开型继电器的控制线圏的两端接 所述控制器的输出端;
所述第三二极管的阳极亦为所述控制电路的第一输出端,所述常开型接触 器的第二触点为所述控制电路的第二输出端;
所述控制器的电源正输入端和负输入端分别接所述控制电路的第一输出 端和第二输出端。
2、 根据权利要求 1所述的电池组防反接的控制电路, 其特征在于, 在所 述常开型接触器的控制线圏的第二端和所述第一常开型继电器的静触点之间 接一短路保护电路。
3、 根据权利要求 1所述的电池组防反接的控制电路, 其特征在于, 在所 述常开型接触器的控制线圏的第一端和所述第二常开型继电器的静触点之间 接一短路保护电路。
4、 根据权利要求 2或 3所述的电池组防反接的控制电路, 其特征在于, 所述短路保护电路为自恢复保险丝 PTC或热敏电阻。
5、 根据权利要求 1至 3任一项所述的电池组防反接的控制电路, 其特征 在于, 所述电路还包括: 告警单元;
所述告警单元接在所述控制电路的第一输入端和第二输入端之间,用于当 发生电池组反接故障时, 发送反接警告。
6、 根据权利要求 5所述的电池组防反接的控制电路, 其特征在于, 所述 告警单元包括: 第四二极管、 扬声器、 电感;
所述第四二极管的阴极接所述控制电路的第一输入端,所述第四二极管的 阳极接所述扬声器的第一端;所述扬声器的第二端接通过所述电感接所述控制 电路的第二输入端。
7、 根据权利要求 1至 3任一项所述的电池组防反接的控制电路, 其特征 在于, 所述控制电路还包括: 控制器电源防反接模块;
所述控制器电源防反接模块接在所述控制器的电源输入端和控制器电源 之间。
8、 根据权利要求 7所述的电池组防反接的控制电路, 其特征在于, 所述 控制器电源防反接模块为一二极管;
所述二极管串接在所述控制器的电源正输入端或电源负输入端与控制器 电源之间。
9、 根据权利要求 7所述的电池组防反接的控制电路, 其特征在于, 所述 控制器和所述控制器电源防反接模块单独设置;
或者, 所述控制器和所述控制器电源防反接模块集成在一体设置。
10、 一种基站电源, 包括电池组和整流电源模块, 其特征在于, 所述基站 电源还包括如权利要求 1至 9任一项所述的电池组防反接的控制电路;
所述电池组接在所述电池组防反接的控制电路的第一输入端与第二输入 端之间;所述整流电源模块接在所述电池组防反接的控制电路的第一输出端与 第二输出端之间。
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CN102369644A (zh) 2012-03-07
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EP2498369B1 (en) 2015-03-25
EP2498369A2 (en) 2012-09-12
EP2498369A4 (en) 2013-02-20

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