JPH0923510A - On-board type charger for battery forklift - Google Patents
On-board type charger for battery forkliftInfo
- Publication number
- JPH0923510A JPH0923510A JP7210145A JP21014595A JPH0923510A JP H0923510 A JPH0923510 A JP H0923510A JP 7210145 A JP7210145 A JP 7210145A JP 21014595 A JP21014595 A JP 21014595A JP H0923510 A JPH0923510 A JP H0923510A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic
- battery
- thermal switch
- fuse breaker
- electric circuit
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、充電中の火災事故を未
然に防止することができるバッテリフォークリフトの搭
載式充電器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-board charger for a battery forklift truck which can prevent a fire accident during charging.
【０００２】[0002]
【従来の技術】従来、バッテリフォークリフトの搭載式
充電器の整流器出力側に、短絡状態を検出するためのヒ
ューズを電気回路に接続するのみの構成であった。2. Description of the Related Art Conventionally, a fuse for detecting a short-circuit state is simply connected to an electric circuit on the rectifier output side of a battery charger for a battery forklift.
【０００３】[0003]
【発明が解決しようとする課題】上述のように、短絡状
態を検出するためのヒューズを電気回路に接続するのみ
の構成では、バッテリフォークリフトの高機能化に伴
い、バッテリが大容量化し、他方、部品のコンパクト化
のため走行・油圧用電動機、充電器のトランス等が許容
温度の高い高絶縁化（Ｈ種）し、電気回路の部品や配線
等とあいまって周囲温度が高くなり、部品や電線が劣化
して短絡事故を引き起こす危険性がある。また、下図の
ようなバッテリ両極間での短絡事故が充電中に発生した
場合、充電器の出力側についてはヒューズにより遮断で
きるが、ヒューズからの後段回路にはバッテリから短絡
電流が流れ、電線を焼損し車両火災につながるという課
題があった。この際、バッテリの短絡電流による電線の
焼損を防ぐため保護装置（本案では該ノーヒューズブレ
ーカー）をバッテリ近傍に設ける。As described above, in the configuration in which the fuse for detecting the short circuit state is simply connected to the electric circuit, the battery has a large capacity as the function of the battery forklift truck increases, and on the other hand, In order to make the parts compact, the electric motors for running / hydraulics, transformers of chargers, etc. have been made highly insulated (class H) with a high allowable temperature, and the ambient temperature has increased together with the parts and wiring of the electric circuit, resulting in parts and electric wires. May deteriorate and cause a short-circuit accident. Also, if a short circuit between the two electrodes of the battery as shown in the figure below occurs during charging, the output side of the charger can be shut off with a fuse, but a short-circuit current will flow from the battery to the subsequent circuit from the fuse and There was a problem that it would burn out and lead to a vehicle fire. At this time, a protection device (in this case, the no-fuse breaker) is provided near the battery to prevent the electric wire from being burnt out due to the short-circuit current of the battery.
【０００４】また、図３に図示しているように、バッテ
リ近傍の配線で充電中に短絡事故が発生した場合、充電
器の出力側については、ヒューズにより遮断できるが、
短絡事故で生じた短絡回路を流れるバッテリ両極間の電
流が遮断できず、電流が流れ続けて電線を焼損し、この
際発する熱によって車両火災を引きおこすという課題が
あった。Further, as shown in FIG. 3, when a short-circuit accident occurs during charging in the wiring near the battery, the output side of the charger can be cut off by a fuse.
There was a problem that the current between the two electrodes of the battery flowing through the short circuit caused by the short circuit accident could not be interrupted and the current continued to burn and the electric wire was burned, and the heat generated at this time caused a vehicle fire.
【０００５】[0005]
【課題を解決する手段】本発明は、バッテリフォークリ
フトのバッテリ近傍に主電気回路遮断用電磁式ノーヒュ
ーズブレーカーを設ける共に充電器側の部品にサーマル
スイッチを取りつけ、該サーマルスイッチの作動と同時
に上記ノーヒューズブレーカーを作動させる制御回路を
具備する構成として、上述の課題を解決せんとするもの
である。According to the present invention, an electromagnetic no-fuse breaker for interrupting a main electric circuit is provided in the vicinity of a battery of a battery forklift, and a thermal switch is attached to a part on a charger side. An object of the present invention is to solve the above-mentioned problems as a configuration including a control circuit for operating a fuse breaker.
【０００６】[0006]
【実施例】本発明の実施例を図面にて説明すると、図１
は本発明の回路図を示す。１は交流電源、２は主電磁開
閉器の常開接点、２´は主電磁開閉器２の励磁コイル、
３はトランス、４は整流器、５はヒューズ、６はバッテ
リ、７は電圧リレーの常開接点、７´は電圧リレーの励
磁コイル、８はモータタイマの限時動作接点、８´はモ
ータタイマ８の励磁コイル、９は充電開始用押しボタン
スイッチ、１０は充電停止用押しボタンスイッチ、１１
は主電気回路遮断用電磁式ノーヒューズブレーカー、１
１´は主電気回路遮断用電磁式ノーヒューズブレーカー
の接点引きはずし用励磁コイル、１２′は電磁継電器の
励磁コイル、１２−１は電磁継電器の常閉接点、１２−
２は電磁継電器の常開接点および１３はサーマルスイッ
チである。DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described with reference to FIG.
Shows a circuit diagram of the present invention. 1 is an AC power supply, 2 is a normally open contact of the main electromagnetic switch, 2'is an exciting coil of the main electromagnetic switch 2,
3 is a transformer, 4 is a rectifier, 5 is a fuse, 6 is a battery, 7 is a voltage relay normally open contact, 7'is a voltage relay exciting coil, 8 is a motor timer time-delay contact, and 8'is a motor timer 8. Excitation coil, 9 is a push button switch for starting charging, 10 is a push button switch for stopping charging, 11
Is an electromagnetic no-fuse breaker for breaking the main electrical circuit, 1
1'is an excitation coil for tripping the contact of an electromagnetic no-fuse breaker for breaking the main electric circuit, 12 'is an excitation coil of an electromagnetic relay, 12-1 is a normally closed contact of the electromagnetic relay, 12-
Reference numeral 2 is a normally open contact of the electromagnetic relay, and 13 is a thermal switch.
【０００７】上記バッテリ６と整流器４との間には、主
電気回路遮断用電磁式ノーヒューズブレーカー１１が挿
入接続され、かつバッテリ６の両極に電圧リレー７の他
にサーマルスイッチ１３と直列に電磁継電器の励磁コイ
ル１２が、該電磁継電器の接点１２−１、１２−２と主
電気回路遮断用電磁式ノーヒューズブレーカー１１の接
点引きはずし用励磁コイル１１´に接続されている。An electromagnetic no-fuse breaker 11 for interrupting the main electric circuit is inserted and connected between the battery 6 and the rectifier 4, and both electrodes of the battery 6 are connected in series with the thermal switch 13 in addition to the voltage relay 7. The exciting coil 12 of the relay is connected to the contacts 12-1 and 12-2 of the electromagnetic relay and the exciting coil 11 'for tripping the contact of the electromagnetic no-fuse breaker 11 for breaking the main electric circuit.
【０００８】上記交流電源１と電磁開閉器の常開接点２
との間には、ヒューズ５を介して充電開始用押ボタンス
イッチ９、充電停止用押しボタンスイッチ１０、電磁継
電器の常閉接点１２−１、モータタイマ８の限時動作接
点８´および電磁開閉器の励磁コイル２´が直列に接続
され、充電開始用押ボタンスイッチ９に並列に電磁開閉
器の常開接点２が、さらに上記限時動作接点８´から後
段にモータタイマ８および電圧リレー７の常開接点７´
の直列に接続した回路を並列に接続する構成としてい
る。The AC power source 1 and the normally open contact 2 of the electromagnetic switch.
, A charge start push button switch 9, a charge stop push button switch 10, an electromagnetic relay normally closed contact 12-1, a motor timer 8 time-delay contact 8 ', and an electromagnetic switch. Of the electromagnetic switch are connected in series to the charging start push button switch 9, and the normally open contact 2 of the electromagnetic switch is further connected to the motor timer 8 and the voltage relay 7 downstream from the time-delaying contact 8 '. Open contact 7 '
The circuits connected in series are connected in parallel.
【０００９】図２に図示するようにサーマルスイッチ１
３は、充電器を構成する部品であるトランス３のコイ
ル、コアあるいは整流器４の冷却板１４に取り付け、充
電中の短絡事故による異常な温度上昇を検出する。As shown in FIG. 2, the thermal switch 1
3 is attached to the coil or core of the transformer 3, which is a component of the charger, or the cooling plate 14 of the rectifier 4, and detects an abnormal temperature rise due to a short circuit accident during charging.
【００１０】異常な温度上昇とは、サーマルスイッチ１
０に設定された温度にサーマルスイッチ１０の取り付け
場所が到達する状態をい、具体的には周囲温度を５０
℃、最大許容温度上昇値を７０deg とすると設計限界値
は１２０℃であり、この場合のサーマルスイッチ１３の
設定温度は１３０〜１４０℃とする。An abnormal temperature rise means the thermal switch 1
The state where the mounting location of the thermal switch 10 reaches the temperature set to 0, specifically, the ambient temperature is set to 50
The design limit value is 120 ° C. when the maximum allowable temperature rise value is 70 ° C. and the set temperature of the thermal switch 13 in this case is 130 to 140 ° C.
【００１１】[0011]
充電をする場合 充電開始用押ボタンスイッチ９を手動で押すと、交流電
源から充電停止用押しボタンスイッチ１０の常閉接点、
電磁継電器の常閉接点１２−１、モータタイマの限時動
作接点８および電磁開閉器の励磁コイル２´と電流が流
れ、電磁開閉器の常開接点２は閉じ、電磁開閉器は自己
保持される共にトランス３、整流器４、ヒューズ５、主
電気回路遮断用電磁式ノーヒューズブレーカー１１に電
流が流れバッテリ６は充電される。In case of charging When the push button switch 9 for starting charging is manually pushed, the normally closed contact of the push button switch 10 for stopping charging from the AC power source,
A current flows through the normally-closed contact 12-1 of the electromagnetic relay, the time-delayed contact 8 of the motor timer, and the exciting coil 2'of the electromagnetic switch, the normally-open contact 2 of the electromagnetic switch is closed, and the electromagnetic switch is held by itself. At the same time, current flows through the transformer 3, the rectifier 4, the fuse 5, and the electromagnetic no-fuse breaker 11 for breaking the main electric circuit, and the battery 6 is charged.
【００１２】充電中にサーマルスイッチが作動した場合 サーマルスイッチ１３が作動すると、電磁継電器の励磁
コイル１２′に電流が流れ、常開接点１２−２が閉じ、
主電気回路遮断用電磁式ノーヒューズブレーカー１１の
接点引きはずし用励磁コイル１１′を励磁し、主電気回
路遮断用電磁式ノーヒューズブレーカー１１がトリップ
（主接点を開く）してバッテリ６への電流の供給を停止
させる。When the thermal switch operates during charging When the thermal switch 13 operates, a current flows through the exciting coil 12 'of the electromagnetic relay, and the normally open contact 12-2 closes.
The electromagnetic no-fuse breaker 11 for disconnecting the main electric circuit is energized to excite the exciting coil 11 'for tripping the contact, and the electromagnetic no-fuse breaker 11 for disconnecting the main electric circuit trips (opens the main contact) to cause a current to the battery 6. Stop the supply of.
【００１３】一方は電気回路遮断用電磁式ノーヒューズ
ブレーカー１１が作動してバッテリ６への電流の供給を
停止させ、他方は常閉接点１２−１を開き、電磁開閉器
の励磁コイル２´への電流の流れを遮断し、電磁開閉器
２が離脱して交流電源１１からの電流の供給を停止し充
電を停止させる。On the one hand, the electromagnetic no-fuse breaker 11 for breaking the electric circuit operates to stop the supply of current to the battery 6, and on the other hand, the normally closed contact 12-1 is opened to the exciting coil 2'of the electromagnetic switch. Then, the electromagnetic switch 2 is disengaged and the current supply from the AC power supply 11 is stopped to stop the charging.
【００１４】充電を停止させる場合 充電停止用押ボタンスイッチ１０を手動で押すと、電磁
開閉器の励磁コイル２´への電流の流れを遮断し、電磁
開閉器の常開接点１２−２が離脱して電源からの電流の
供給を停止し充電を停止させる。When charging is stopped When the push button switch 10 for stopping charging is manually pushed, the flow of current to the exciting coil 2'of the electromagnetic switch is interrupted, and the normally open contact 12-2 of the electromagnetic switch is disconnected. Then, the supply of current from the power supply is stopped and the charging is stopped.
【００１５】[0015]
【効果】本発明は、上述のように、バッテリフォークリ
フトのバッテリ近傍に主電気回路遮断用電磁式ノーヒュ
ーズブレーカーを設ける共に充電器の部品にサーマルス
イッチを取りつけ、該サーマルスイッチの作動と同時に
上記ノーヒューズブレーカーを作動させる制御回路を具
備する構成としたので、充電中に短絡事故が発生した場
合、充電をただちに停止すと共にバッテリを主回路から
切りはなし、バッテリからの短絡電流による車両火災を
防止することができる。As described above, according to the present invention, an electromagnetic no-fuse breaker for disconnecting the main electric circuit is provided in the vicinity of the battery of the battery forklift, and a thermal switch is attached to the parts of the charger. Since it has a control circuit that activates the fuse breaker, if a short-circuit accident occurs during charging, immediately stop charging and disconnect the battery from the main circuit to prevent vehicle fire due to short-circuit current from the battery. be able to.
【図１】本発明の回路図を示す。FIG. 1 shows a circuit diagram of the present invention.
【図２】サーマルスイッチ取付状態図を示す。FIG. 2 shows a thermal switch mounting state diagram.
【図３】短絡個所を示す参考図である。FIG. 3 is a reference diagram showing a short-circuited portion.
１ 交流電源 ２ 主電磁開閉器の常開接点 ２´ 主電磁開閉器の励磁コイル ３ トランス ４ 整流器 ５ ヒューズ ６ バッテリ ７ 電圧リレーの常開接点 ７´ 電圧リレーの励磁コイル ８ モータタイマの限時動作接点 ８´ モータタイマの励磁コイル ９ 充電開始用押しボタンスイッチ １０ 充電停止用押しボタンスイッチ １１ 主電気回路遮断用電磁式ノーヒューズブレーカー １１´ 主電気回路遮断用電磁式ノーヒューズブレーカ
ー接点の引きはずし用励磁コイル1 AC power supply 2 Normally open contact of main electromagnetic switch 2'Exciting coil of main electromagnetic switch 3 Transformer 4 Rectifier 5 Fuse 6 Battery 7 Voltage relay normally open contact 7'Voltage relay exciting coil 8 Motor timer timed contact 8'Excitation coil of motor timer 9 Push button switch for charging start 10 Push button switch for charging stop 11 Electromagnetic no-fuse breaker for breaking main electric circuit 11 'Excitation for tripping electromagnetic no-fuse breaker contact for breaking main electric circuit coil
Claims (1)
に主電気回路遮断用電磁式ノーヒューズブレーカーを設
ける共に充電器の部品にサーマルスイッチを取りつけ、
該サーマルスイッチの作動と同時に上記ノーヒューズブ
レーカーを作動させる制御回路を具備してなるバッテリ
フォークリフトの搭載式充電器。1. An electromagnetic no-fuse breaker for interrupting a main electric circuit is provided near a battery of a battery forklift, and a thermal switch is attached to a charger part.
An on-board charger for a battery forklift comprising a control circuit for operating the no-fuse breaker at the same time when the thermal switch is activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21014595A JP3355071B2 (en) | 1995-06-30 | 1995-06-30 | On-board charger for battery forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21014595A JP3355071B2 (en) | 1995-06-30 | 1995-06-30 | On-board charger for battery forklift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0923510A true JPH0923510A (en) | 1997-01-21 |
| JP3355071B2 JP3355071B2 (en) | 2002-12-09 |
Family
ID=16584522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21014595A Expired - Fee Related JP3355071B2 (en) | 1995-06-30 | 1995-06-30 | On-board charger for battery forklift |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3355071B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499150A (en) * | 2017-07-20 | 2017-12-22 | 北自所制造业自动化工程研究中心（常州）有限公司 | container-type charging station |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4781364B2 (en) | 2004-09-03 | 2011-09-28 | ソシエテ ド テクノロジー ミシュラン | Improved curing method for uneven thick rubber products |
-
1995
- 1995-06-30 JP JP21014595A patent/JP3355071B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499150A (en) * | 2017-07-20 | 2017-12-22 | 北自所制造业自动化工程研究中心（常州）有限公司 | container-type charging station |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3355071B2 (en) | 2002-12-09 |
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