JPH0614448Y2 - Transformer for charger - Google Patents
Transformer for chargerInfo
- Publication number
- JPH0614448Y2 JPH0614448Y2 JP1988100529U JP10052988U JPH0614448Y2 JP H0614448 Y2 JPH0614448 Y2 JP H0614448Y2 JP 1988100529 U JP1988100529 U JP 1988100529U JP 10052988 U JP10052988 U JP 10052988U JP H0614448 Y2 JPH0614448 Y2 JP H0614448Y2
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- charger
- charging
- secondary coil
- output voltage
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 「産業上の利用分野」 この考案の電気車などに用いられる蓄電池に対する充電
器に用いられる充電器用トランスに関する。[Detailed Description of the Invention] "Industrial field of application" The present invention relates to a charger transformer used in a charger for a storage battery used in an electric vehicle or the like.
「従来の技術」 従来の充電器用トランスは第３図に示すように磁気コア
１１に対して１次コイル１２と２次コイル１３とが分離
して巻かれ、１次コイル１２と２次コイル１３との間に
リーケージコア１４が介在されている。"Prior Art" In a conventional charger transformer, a primary coil 12 and a secondary coil 13 are separately wound around a magnetic core 11 as shown in FIG. A leakage core 14 is interposed between
準定電圧方式の充電器用トランスは充電初期から充電終
期までに出力直流電圧−出力直流電流が第４図に示すよ
うに変化させて充電する。初期充電電流Ｉ１および電圧
Ｅ１は Ｅ１＝2.125Ｎ で与えられる。Ｃは蓄電池の容量、Ｔは充電時間、Ｎは
直列電池個数である。終期充電電流Ｉ２および電圧Ｅ２
は Ｉ２＝（0.03〜0.05）Ｃ Ｅ２＝2.667Ｎ で与えられる。この出力電圧−電流特性は充電されるべ
き蓄電池に応じて決まり、この特性が得られるように充
電器用トランスが設計される。４８Ｖの蓄電池に対する
理想的な出力電圧−電流特性は第４図中の線１５とな
る。The quasi-constant voltage type transformer for charging is charged by changing the output DC voltage-output DC current from the initial charging to the final charging as shown in FIG. The initial charging current I 1 and the voltage E 1 are Given by E 1 = 2.125N. C is the capacity of the storage battery, T is the charging time, and N is the number of series batteries. Final charging current I 2 and voltage E 2
It is given by I 2 = (0.03~0.05) C E 2 = 2.667N. This output voltage-current characteristic is determined according to the storage battery to be charged, and the transformer for the charger is designed so as to obtain this characteristic. An ideal output voltage-current characteristic for a 48V storage battery is shown by line 15 in FIG.
この４８Ｖ用のトランスを用い、その２次巻線１３を単
純に1/2として２４Ｖの蓄電池の充電に用いると、その
時の出力電圧−電流特性は線１６となり、理想充電の出
力電圧−電流特性（線１７）と異なったものとなる。リ
ーケージコア１４の挿入枚数を増加すれば特性線１６の
傾斜φ１を大きくすることはできるが、リーケージコア
１４をすべて抜き去った状態よりφ１を小さくすること
はできない。このため従来においては理想充電特性線１
７を得るため大容量鉄心を利用するか、出力特性を犠牲
にして対応していた。つまり各種電圧の蓄電池ごとに異
なる鉄心型を必要とした。When this 48V transformer is used and its secondary winding 13 is simply halved to be used for charging a 24V storage battery, the output voltage-current characteristic at that time is line 16, and the output voltage-current characteristic of ideal charging is shown. It is different from (line 17). If the number of inserted leakage cores 14 is increased, the inclination φ 1 of the characteristic line 16 can be increased, but φ 1 cannot be made smaller than the state in which the leakage core 14 is completely removed. Therefore, in the conventional case, the ideal charging characteristic line 1
In order to obtain 7, a large-capacity iron core was used, or the output characteristics were sacrificed. That is, a different iron core type was required for each storage battery of various voltages.
「課題を解決するための手段」 この考案によれば２次コイルが同一巻方向で分割巻きと
され、その分別巻きの一方と１次コイルとが重ね巻きと
され、この重ね巻きと、２次コイルの分割巻きの他方と
の間にリーケージコアが介在される。[Means for Solving the Problem] According to the present invention, the secondary coil is dividedly wound in the same winding direction, one of the separate windings and the primary coil are overlapped, and the overlapped winding and the secondary coil are wound. A leakage core is interposed between the coil and the other of the split windings.
「実施例」 第１図，第２図はこの考案の実施例を示す。コア１１に
２次コイルがＮＳ１とＮＳ２とに分割巻きされ、その一
方の分割巻きＮＳ１と１次コイルＮＰとが重ね巻きとさ
れる。この重ね巻きと他方の分割巻きＮＳ２との間にリ
ーケージコア１４が介在される。"Embodiment" FIGS. 1 and 2 show an embodiment of the present invention. A secondary coil is split and wound around the core 11 into N S1 and N S2, and one of the split windings N S1 and the primary coil N P is lap-wound. The leakage core 14 is interposed between the overlapping winding and the other divided winding N S2 .
この構成によれば４８Ｖ用のトランスコアに対し、第１
図に示す構成とすることにより２４Ｖ用の理想充電の特
性（第４図線１７）を得ることができた。これは次の理
由による。１次コイルと２次コイルとを完全に重ね巻き
とすると、第４図の出力電圧−電圧特性はねてφ１＝０
にほぼ等しくなる。従って２次コイルの一部を１次コイ
ルと重ね巻きにすることにより、１次コイルと２次コイ
ルとを分割した場合より出力電圧−電流特性の傾斜をゆ
るやかにすることができる。このため第４図の特性線１
７を得ることができる。According to this configuration, the first for the transformer core for 48V
With the configuration shown in the figure, the ideal charging characteristics for 24 V (17 in FIG. 4) could be obtained. This is for the following reason. When the primary coil and the secondary coil are completely overlapped, the output voltage-voltage characteristic of FIG. 4 repels φ 1 = 0.
Is almost equal to. Therefore, by overlapping a part of the secondary coil with the primary coil, the slope of the output voltage-current characteristic can be made gentler than in the case where the primary coil and the secondary coil are divided. Therefore, characteristic line 1 in FIG.
7 can be obtained.
「考案の効果」 以上述べたようにこの考案によれば出力電圧−電流特性
の傾斜をゆるやかにすることができるため、例えば４８
Ｖの蓄電池に対して理想充電を行うように設計された充
電器用トランスの鉄心型をそのまま利用して２４Ｖの蓄
電池に対して理想充電を行う充電器用トランスを得るこ
とができる。従ってそれだけ各種電圧の蓄電池に対して
少ない鉄心型で理想充電を行う充電器用トランスを得る
ことができる。なおリーケージコア１４が用いられてい
るため、リーケージコア１４を増減することにより出力
電圧−電流特性の傾斜を調整することができる。"Effect of Device" As described above, according to this device, the slope of the output voltage-current characteristic can be made gentle.
It is possible to obtain a transformer for a charger that ideally charges a 24V storage battery by directly using the iron core type of the transformer for a charger that is designed to ideally charge a storage battery of V. Therefore, it is possible to obtain a transformer for a charger that performs ideal charging with a less number of iron cores for storage batteries of various voltages. Since the leakage core 14 is used, the slope of the output voltage-current characteristic can be adjusted by increasing or decreasing the leakage core 14.
第１図はこの考案による充電器用トランスの一例を示す
傾斜図、第２図はその等価回路図、第３図は従来の充電
器用トランスを示す傾斜図、第４図は出力電圧−電流特
性図である。FIG. 1 is an inclination diagram showing an example of a transformer for a charger according to the present invention, FIG. 2 is an equivalent circuit diagram thereof, FIG. 3 is an inclination diagram showing a conventional transformer for a charger, and FIG. 4 is an output voltage-current characteristic diagram. Is.
Claims (1)
れ、その分割巻きの一方と１次コイルとが重ね巻きとさ
れ、この重ね巻きと、上記２次コイルの分割巻きの他方
との間にリーケージコアが介在されている充電器用トラ
ンス。1. A secondary coil is divided into windings in the same winding direction, one of the divided windings and a primary coil are overlapped, and the overlapped winding and the other of the divided windings of the secondary coil. A transformer for a charger with a leakage core interposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988100529U JPH0614448Y2 (en) | 1988-07-27 | 1988-07-27 | Transformer for charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988100529U JPH0614448Y2 (en) | 1988-07-27 | 1988-07-27 | Transformer for charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0222031U JPH0222031U (en) | 1990-02-14 |
| JPH0614448Y2 true JPH0614448Y2 (en) | 1994-04-13 |
Family
ID=31328686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988100529U Expired - Lifetime JPH0614448Y2 (en) | 1988-07-27 | 1988-07-27 | Transformer for charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0614448Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6572541B2 (en) * | 2015-01-09 | 2019-09-11 | レシップホールディングス株式会社 | Transformer |
| JP2021174830A (en) * | 2020-04-22 | 2021-11-01 | スミダコーポレーション株式会社 | LLC transformer with built-in resonance coil |
-
1988
- 1988-07-27 JP JP1988100529U patent/JPH0614448Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0222031U (en) | 1990-02-14 |
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