JPH0445410Y2 - - Google Patents
Info
- Publication number
- JPH0445410Y2 JPH0445410Y2 JP17635086U JP17635086U JPH0445410Y2 JP H0445410 Y2 JPH0445410 Y2 JP H0445410Y2 JP 17635086 U JP17635086 U JP 17635086U JP 17635086 U JP17635086 U JP 17635086U JP H0445410 Y2 JPH0445410 Y2 JP H0445410Y2
- Authority
- JP
- Japan
- Prior art keywords
- built
- storage battery
- external battery
- power
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010586 diagram Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は直流電源装置に関するもので、さらに
詳しく言えば内蔵蓄電池を備え、かつこの内蔵蓄
電池のバツクアツプ用として外部電池を無瞬断で
接続できる接続用端子を備えた直流電源装置に関
するものである。[Detailed description of the invention] Industrial application field The present invention relates to a DC power supply device, and more specifically, a connection device that is equipped with a built-in storage battery and that can connect an external battery without interruption for backing up the built-in storage battery. The present invention relates to a DC power supply device equipped with a terminal.
従来技術とその問題点
受電された商用交流電力を直流電力に変換して
負荷に供給するとともに内蔵蓄電池を充電する直
流電源装置は、無停電の直流電力が供給できるの
で、無停電が要求される各種のOA機器や通信用
機器の駆動用の電源装置として用いられている。Conventional technology and its problems DC power supplies that convert received commercial AC power into DC power and supply it to the load and charge a built-in storage battery are required to be uninterruptible because they can supply uninterrupted DC power. It is used as a power supply device to drive various OA equipment and communication equipment.
ところが、近年は停電が非常に少なくなり、ま
た停電があつてもきわめて短時間で復電するよう
になつたので、内蔵蓄電池の容量を小さくして直
流電源装置の小形、軽量化が図られるようになつ
てきている。このような装置の中には、点検等に
より生じる内蔵蓄電池の容量に対応する保持時間
以上の停電に備えて、内蔵蓄電池をバツクアツプ
する外部電池が接続できる外部電池接続用端子が
設けられているものがあり、その端子は外部電池
が逆極性に接続されないような構造にされてい
る。さらに外部電池が接続される場合、同時に内
蔵蓄電池を切り離すようにして蓄電池間の横流れ
を防止する構造にされている。 However, in recent years, power outages have become much rarer, and even if there is a power outage, power can be restored in a very short time, so it has become possible to reduce the capacity of built-in storage batteries to make DC power supplies smaller and lighter. I'm getting used to it. Some of these devices are equipped with an external battery connection terminal to which an external battery can be connected to back up the built-in storage battery in case of a power outage that occurs for a period longer than the capacity of the built-in storage battery due to inspection, etc. The terminals are designed to prevent external batteries from being connected with reverse polarity. Furthermore, when an external battery is connected, the built-in storage battery is disconnected at the same time to prevent cross-flow between the storage batteries.
しかしながら上記の如き直流電源装置では、内
蔵蓄電池が接続されている接点が開放されてから
外部電池が接続されるため、停電等により内蔵蓄
電池から負荷に給電されている場合には瞬間的に
給電が停止するという欠点があつた。また外部電
池接続用端子が逆接防止構造になつていても、第
２図の如きプラグで外部電池を接続する場合、外
部電池自体が逆極性（図示した極性と逆の場合）
に接続されていると、負荷に逆電圧が印加されて
重大な事故を引き起こす危険性を有していた。 However, in the above-mentioned DC power supply, the external battery is connected after the contact to which the built-in storage battery is connected is opened, so if power is being supplied to the load from the built-in storage battery due to a power outage, the power supply will be interrupted momentarily. It had the disadvantage of stopping. Also, even if the external battery connection terminal has a structure that prevents reverse connection, when connecting an external battery with a plug like the one shown in Figure 2, the external battery itself will have a reverse polarity (if the polarity is opposite to that shown in the diagram).
If it is connected to the load, there is a risk that a reverse voltage will be applied to the load and cause a serious accident.
考案の目的
本考案は上記欠点を解消するもので、内蔵蓄電
池が接続されている接点が開放されても給電が瞬
断しないようにするとともに、外部電池の極性が
逆極性になつていても負荷に逆電圧が印加されな
いようにすることにより、信頼性の高い直流電源
装置を得ることを目的とする。Purpose of the invention The present invention solves the above-mentioned drawbacks. It prevents the power supply from momentary interruption even if the contact to which the built-in storage battery is connected is opened, and also prevents the load from being interrupted even if the external battery has reverse polarity. The purpose is to obtain a highly reliable DC power supply device by preventing reverse voltage from being applied to the DC power supply.
考案の構成
本考案の直流電源装置は、商用交流電力を変換
して得られた直流電力で充電される内蔵蓄電池
と、この内蔵蓄電池のバツクアツプ用に外部電池
が接続できる外部電池接続用端子とを備え、一方
の内蔵蓄電池接続用端子と一方の外部電池接続用
端子との間に、ダイオードを接続するとともに外
部電池が接続されると開放される接点を設け、そ
れぞれの外部電池接続用端子間にヒユーズとダイ
オードとの直列回路を挿入し、前記ヒユーズとダ
イオードとの直列接続点を他方の内蔵蓄電池接続
用端子に接続したものである。Structure of the invention The DC power supply device of the invention has a built-in storage battery that is charged with DC power obtained by converting commercial AC power, and an external battery connection terminal to which an external battery can be connected for backing up the built-in storage battery. In addition, a diode is connected between one built-in storage battery connection terminal and one external battery connection terminal, and a contact that opens when an external battery is connected is provided between each external battery connection terminal. A series circuit of a fuse and a diode is inserted, and the series connection point of the fuse and diode is connected to the other built-in storage battery connection terminal.
実施例
以下実施例により説明する。第１図は本考案の
直流電源装置１０の回路図で、商用交流電力源１
を受電する入力端子１１，１２と、負荷７を接続
する負荷端子７，７２と、外部電池８を接続する
外部電池接続用端子８１，８２とを備えている。
入力端子１１，１２に接続された商用交流電力源
１から得られる交流電力は交流−直流変換回路２
で直流電力に変換され、負荷端子７１，７２を介
して負荷７に供給されるとともに内蔵蓄電池接続
用端子３１，３２を介して内蔵蓄電池３を充電す
る。また外部電池接続用端子８１，８２は、内蔵
蓄電池３の容量に対応する保持時間以上の停電に
備えて乾電池や蓄電池などの外部電池８が接続で
きるようにするためのもので、一方の外部電池接
続用端子８１と一方の内蔵蓄電池接続用端子３１
との間に、外部電池８が接続されると開放されて
内蔵蓄電池３を切り離す接点９を設けるととも
に、前記外部電池接続用端子８１にアノードを、
内蔵蓄電池接続用端子３１にカソードを接続して
ダイオード４を接続している。このような構成と
することにより、外部電池８が接続されて接点９
が開放されても、内蔵蓄電池３から負荷７への給
電はダイオード４を介して継続されるため、瞬間
的に給電が停止することなく外部電池８からの給
電に切り換えることができる。Examples The following examples will be explained below. FIG. 1 is a circuit diagram of a DC power supply device 10 of the present invention, in which a commercial AC power source 1
input terminals 11 and 12 for receiving power; load terminals 7 and 72 for connecting the load 7; and external battery connection terminals 81 and 82 for connecting the external battery 8.
AC power obtained from a commercial AC power source 1 connected to input terminals 11 and 12 is supplied to an AC-DC converter circuit 2.
The DC power is converted into DC power, which is supplied to the load 7 via the load terminals 71 and 72, and also charges the built-in storage battery 3 via the built-in storage battery connection terminals 31 and 32. The external battery connection terminals 81 and 82 are for connecting an external battery 8 such as a dry battery or a storage battery in case of a power outage lasting longer than the retention time corresponding to the capacity of the built-in storage battery 3. Connection terminal 81 and one built-in storage battery connection terminal 31
A contact 9 is provided between the external battery 8 and the internal storage battery 3, which is opened when the external battery 8 is connected, and an anode is connected to the external battery connection terminal 81.
A cathode is connected to a built-in storage battery connection terminal 31, and a diode 4 is connected thereto. With this configuration, the external battery 8 is connected and the contact 9
Even if the load 7 is opened, the power supply from the built-in storage battery 3 to the load 7 continues via the diode 4, so that the power supply can be switched to the external battery 8 without momentarily stopping the power supply.
さらに本考案の直流電源装置１０では、第２図
の如きプラグの外部で外部電池８が逆極性に接続
される等により、外部電池接続用端子８１，８２
間に逆電圧が印加されても負荷７に逆電圧が印加
されないようにするため、外部電池接続用端子８
１，８２間にダイオード５とヒユーズ６との直列
回路を挿入し、前記ダイオード５のカソードとヒ
ユーズ６とが接続された直列接続点を他方の内蔵
蓄電池接続用端子３２に接続している。このよう
な構成とすることにより、外部電池接続用端子８
１，８２間に逆極性の電圧が印加されても、ダイ
オード５、ヒユーズ６を介して大電流が流れてヒ
ユーズ６を溶断させるので、ダイオード４の破壊
が防止でき、負荷７にも逆電圧が印加されること
はなく、負荷７を破壊するといつた重大な事故の
発生を防止することができる。 Furthermore, in the DC power supply device 10 of the present invention, the external battery connection terminals 81 and 82 are connected to each other with opposite polarity outside the plug as shown in FIG.
In order to prevent reverse voltage from being applied to the load 7 even if a reverse voltage is applied between the external battery connection terminals 8
A series circuit of a diode 5 and a fuse 6 is inserted between the diode 5 and the fuse 6, and the series connection point where the cathode of the diode 5 and the fuse 6 are connected is connected to the other built-in storage battery connection terminal 32. With such a configuration, the external battery connection terminal 8
Even if a reverse polarity voltage is applied between 1 and 82, a large current flows through diode 5 and fuse 6 and blows out fuse 6, which prevents diode 4 from being destroyed and also prevents reverse voltage from being applied to load 7. Since no voltage is applied, it is possible to prevent a serious accident such as destruction of the load 7 from occurring.
考案の効果
実施例において詳述した如く、本考案の直流電
源装置は、必要に応じて外部電池を接続して保持
時間を長くすることができるので、装置自体の小
形、軽量化を図ることができる。またこの時に内
蔵蓄電池が接続されている接点が開放されても給
電が瞬断することもなく、また外部電池接続用端
子間に逆電圧が印加されても負荷に逆電圧が印加
されることもないので、信頼性を高めることがで
きる。Effects of the invention As detailed in the examples, the DC power supply device of the present invention can extend the holding time by connecting an external battery as necessary, so the device itself can be made smaller and lighter. can. In addition, even if the contact to which the built-in storage battery is connected is opened at this time, the power supply will not be interrupted momentarily, and even if a reverse voltage is applied between the external battery connection terminals, the reverse voltage will not be applied to the load. Therefore, reliability can be improved.
第１図は本考案の直流電源装置の回路図、第２
図は本考案の直流電源装置の外部電池接続用端子
に接続されるプラグの斜視図である。
１……商用交流電力源、１１，１２……入力端
子、３……内蔵蓄電池、３１，３２……内蔵蓄電
池接続用端子、４，５……ダイオード、６……ヒ
ユーズ、７……負荷、７１，７２……負荷端子、
８……外部電池、８１，８２……外部電池接続用
端子、９……接点、１０……直流電源装置。
Figure 1 is a circuit diagram of the DC power supply of the present invention, Figure 2 is a circuit diagram of the DC power supply device of the present invention.
The figure is a perspective view of a plug connected to an external battery connection terminal of the DC power supply device of the present invention. 1... Commercial AC power source, 11, 12... Input terminal, 3... Built-in storage battery, 31, 32... Built-in storage battery connection terminal, 4, 5... Diode, 6... Fuse, 7... Load, 71, 72...Load terminals,
8... External battery, 81, 82... External battery connection terminal, 9... Contact, 10... DC power supply device.
Claims (1)
負荷に供給するとともにこの直流電力で充電さ
れる内蔵蓄電池と、この内蔵蓄電池のバツクア
ツプ用に外部電池が接続できる外部電池接続用
端子とを備えた直流電源装置において、一方の
内蔵蓄電池接続用端子と一方の外部電池接続用
端子との間に、ダイオードを接続するとともに
外部電池が接続されると開放されて内蔵蓄電池
を切り離す接点を設けたことを特徴とする直流
電源装置。 (2) 外部電池接続用端子間にヒユーズとダイオー
ドとの直列回路を挿入し、前記ヒユーズとダイ
オードとの直列接続点を他方の内蔵蓄電池接続
用端子に接続したことを特徴とする実用新案登
録請求の範囲第１項記載の直流電源装置。[Scope of claim for utility model registration] (1) A built-in storage battery that supplies DC power obtained by converting commercial AC power to a load and is charged with this DC power, and an external battery for backing up this built-in storage battery. In a DC power supply device equipped with a connectable external battery connection terminal, a diode is connected between one built-in storage battery connection terminal and one external battery connection terminal, and the diode is opened when an external battery is connected. A DC power supply device characterized by having a contact point for disconnecting a built-in storage battery. (2) A request for registration of a utility model characterized in that a series circuit of a fuse and a diode is inserted between external battery connection terminals, and the series connection point of the fuse and diode is connected to the other built-in storage battery connection terminal. The DC power supply device according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17635086U JPH0445410Y2 (en) | 1986-11-17 | 1986-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17635086U JPH0445410Y2 (en) | 1986-11-17 | 1986-11-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6381639U JPS6381639U (en) | 1988-05-30 |
| JPH0445410Y2 true JPH0445410Y2 (en) | 1992-10-26 |
Family
ID=31116511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17635086U Expired JPH0445410Y2 (en) | 1986-11-17 | 1986-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0445410Y2 (en) |
-
1986
- 1986-11-17 JP JP17635086U patent/JPH0445410Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6381639U (en) | 1988-05-30 |
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