JP2517195Y2 - Cement resistor for electric power - Google Patents
Cement resistor for electric powerInfo
- Publication number
- JP2517195Y2 JP2517195Y2 JP3727390U JP3727390U JP2517195Y2 JP 2517195 Y2 JP2517195 Y2 JP 2517195Y2 JP 3727390 U JP3727390 U JP 3727390U JP 3727390 U JP3727390 U JP 3727390U JP 2517195 Y2 JP2517195 Y2 JP 2517195Y2
- Authority
- JP
- Japan
- Prior art keywords
- housing
- resistor
- heat sink
- internal heat
- cement
- 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） 本考案は、モータ制御等に使用される電力用セメント
抵抗器に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a cement resistor for electric power used for motor control and the like.
（従来の技術） 近年、半導体部品を用いて装置の小型化が進み、装置
内で比較的大きなスペースを占めていたこの種電力用抵
抗器に対しても小型・軽量化、低温度上昇の要求が強ま
ってきている。(Prior Art) In recent years, the miniaturization of devices using semiconductor parts has progressed, and demand for smaller size, lighter weight, and lower temperature rise has also been demanded for power resistors of this type, which occupy a relatively large space within the device. Is getting stronger.
第４図は、従来の120W型電力用セメント抵抗器を示し
たもので、長さ150mm、幅42mm、高さ20mmのケース11
に、第５図に示したように、両端に外部引出コード12を
設け、スパイラル状に巻いた抵抗体13をＵターンさせて
収納し、セメントを充填している。Fig. 4 shows a conventional 120W type cement resistor for electric power. Case 11 of length 150mm, width 42mm, height 20mm
Further, as shown in FIG. 5, external lead-out cords 12 are provided at both ends, and a spirally wound resistor 13 is U-turned to be housed and filled with cement.
（考案が解決しようとする課題） しかしながら、上記構成の電力用抵抗器では、さらに
ケースの両端、若しくは両側面から取付フランジ11a,11
bを突出させなければならず、それだけ余分なスペース
を必要としていた。(Problems to be solved by the invention) However, in the power resistor having the above-described configuration, the mounting flanges 11a and 11 are further attached from both ends or both side surfaces of the case.
The b had to be projected, which required extra space.
本考案は、このような従来技術の問題点を改善するも
ので、取付フランジをなくし、さらに従来と同じ外形寸
法ながら、放熱効果を高めるようにした電力用セメント
抵抗器を提供することを目的とする。SUMMARY OF THE INVENTION The present invention solves the above problems of the prior art, and an object thereof is to provide a power cement resistor which eliminates a mounting flange and has the same external dimensions as the conventional one, but which enhances the heat radiation effect. To do.
（課題を解決するための手段） この目的を達成するために、本考案は、一面が開口し
た箱形ハウジングの内底部の中央部分から立上り、内部
で発生した熱をハウジング外部まで伝導する内部ヒート
シンク部を設け、かつこの内部ヒートシンク部の高さ方
向に、貫通する取付孔若しくはねじを切った穴を設けた
構成とする。(Means for Solving the Problem) In order to achieve this object, the present invention provides an internal heat sink that rises from the central portion of the inner bottom of a box-shaped housing with one surface open and conducts the heat generated inside to the outside of the housing. And a mounting hole or a threaded hole penetrating therethrough is provided in the height direction of the internal heat sink portion.
（作用） この構成によれば、従来のものに比べてケース本体の
外形寸法は同じであるが、内部で発生した熱を内部ヒー
トシンク部によりハウジング外部まで効果的に熱伝導す
るので、放熱が促進され、温度上昇を抑えることができ
る。また、取付に、内部ヒートシンク部に設けた取付孔
あるいはねじを切った穴が利用されるため、従来の取付
フランジは不要となり、占有スペースを縮小することが
できる。(Operation) According to this structure, the outer dimensions of the case body are the same as those of the conventional one, but the heat generated inside is effectively conducted to the outside of the housing by the internal heat sink portion, so that heat dissipation is promoted. Therefore, the temperature rise can be suppressed. Further, since the mounting hole or the threaded hole provided in the internal heat sink portion is used for mounting, the conventional mounting flange is not required, and the occupied space can be reduced.
（実施例） 以下、図面を参照して実施例を詳細に説明する。第１
図及び第２図（第１図のＸ−Ｘ断面）は、本考案の一実
施例の電力用セメント抵抗器を示したもので、１は一面
が開口した箱形の金属製ハウジング、２はそのハウジン
グ１の内底部から立上り、内部で発生した熱をハウジン
グ外部まで伝導する。ハウジングと同一材からなる内部
ヒートシンク部で、その内部ヒートシンク部２は、ハウ
ジング１の幅方向中央部に位置し、長手方向はハウジン
グの壁面付近まで延びており、高さがハウジングの高さ
と略等しい。また、内部ヒートシンク部１の両端部に
は、上面から底面への高さ方向に貫通する取付孔2aを備
えている。なお、これは貫通せずに、上面又は底面のい
ずれか一方に設けたねじを切った穴でもよい。３はスパ
イラル状に巻かれた抵抗体で、ハウジング１にＵターン
して収納され、両端には絶縁碍子４に設けた出口端子５
を介して外部引出コード６が接続されている。7a,7bは
抵抗体３をハウジング１に接触しないように保持する絶
縁碍子である。ハウジング１に抵抗体３を収納した後
は、図示しないセメントを充填し、固化させる。(Example) Hereinafter, an example will be described in detail with reference to the drawings. First
1 and 2 (X-X cross section in FIG. 1) show an electric power cement resistor according to an embodiment of the present invention, in which 1 is a box-shaped metal housing with one opening and 2 is It rises from the inner bottom of the housing 1 and conducts the heat generated inside to the outside of the housing. The inner heat sink portion is made of the same material as the housing, and the inner heat sink portion 2 is located in the widthwise central portion of the housing 1 and extends in the longitudinal direction to the vicinity of the wall surface of the housing, and the height thereof is substantially equal to the height of the housing. . Further, both ends of the internal heat sink portion 1 are provided with mounting holes 2a penetrating in the height direction from the top surface to the bottom surface. It should be noted that this may be a threaded hole provided on either the top surface or the bottom surface without penetrating. Reference numeral 3 is a spirally wound resistor, which is housed in the housing 1 by making a U-turn, and has outlet terminals 5 provided on the insulator 4 at both ends.
The external withdrawal cord 6 is connected via the. Reference numerals 7a and 7b are insulators that hold the resistor 3 so as not to contact the housing 1. After housing the resistor 3 in the housing 1, cement (not shown) is filled and solidified.
このように構成された本実施例では、抵抗器を装置に
取り付ける際は、ハウジング１の表面を装置取付面に密
着させ、取付孔２にねじ等を通して取付けるので、従来
のような取付フランジを設ける必要はない。また、内部
で発生した熱は内部ヒートシンク部２を通して直ちにハ
ウジング表面へ伝導されるので、熱放散が効果的に促進
され、温度上昇を抑えることができる。ハウジング本体
の外形寸法を、従来例と同じ長さ150mm、幅42mm、高さ2
0mmとした120W型の抵抗器の場合、温度上昇を比較する
と、従来例の温度上昇が220℃であったのに対し、本実
施例では200℃以下に抑えることができた。In this embodiment having such a structure, when the resistor is attached to the device, the surface of the housing 1 is brought into close contact with the device mounting surface and the mounting hole 2 is mounted with a screw or the like, so that a conventional mounting flange is provided. No need. Further, the heat generated inside is immediately conducted to the housing surface through the internal heat sink portion 2, so that the heat dissipation is effectively promoted and the temperature rise can be suppressed. The outer dimensions of the housing body are the same as the conventional example: length 150 mm, width 42 mm, height 2
In the case of the 120 W type resistor with 0 mm, comparing the temperature rise, the temperature rise of the conventional example was 220 ° C., but in the present example, it could be suppressed to 200 ° C. or less.
第３図は、本考案の他の実施例を示したもので、抵抗
体３の外部引出部がねじ端子になっているものであり、
８は抵抗体３の両端にそれぞれ接続されたねじ端子、９
はねじ端子８を保持する絶縁碍子である。本実施例も第
１図の実施例と同様の効果を有する。FIG. 3 shows another embodiment of the present invention in which the external lead-out portion of the resistor 3 is a screw terminal.
8 is a screw terminal connected to both ends of the resistor 3, 9
Is an insulator that holds the screw terminal 8. This embodiment also has the same effects as the embodiment of FIG.
（考案の効果） 以上説明したように、本考案によれば、電力用セメン
ト抵抗器のハウジングの中央部に内部ヒートシンク部を
設け、かつその内部ヒートシンク部に表面から裏面に貫
通する取付孔若しくはねじを切った穴を設けることによ
り、従来と同じ外形寸法で、従来構成に比較して温度上
昇を低く押えることができ、さらに、従来のような取付
フランジを設ける必要がなくなり、その分、占有スペー
スが小さくなって、装置の小型化を図ることができる。(Effects of the Invention) As described above, according to the present invention, an internal heat sink is provided in the center of the housing of the power cement resistor, and the internal heat sink has a mounting hole or a screw penetrating from the front surface to the back surface. By providing a cut hole, it is possible to keep the temperature rise lower than the conventional configuration with the same external dimensions as the conventional one. Furthermore, it is not necessary to provide a mounting flange like the conventional one, and the occupied space is correspondingly increased. Can be reduced, and the device can be downsized.
第１図は本考案の一実施例の電力用セメント抵抗器の構
成図、第２図は第１図のＸ−Ｘ断面図、第３図は本考案
の他の実施例の構成図、第４図は従来例の外観図、第５
図は回路図である。 １……ハウジング、２……内部ヒートシンク部、2a……
取付孔、３……抵抗体、６……外部引出コード、7a,7b
……絶縁碍子、８……ねじ端子。FIG. 1 is a block diagram of a power cement resistor according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG. 3 is a block diagram of another embodiment of the present invention. Fig. 4 is an external view of the conventional example, No. 5
The figure is a circuit diagram. 1 ... Housing, 2 ... Internal heat sink, 2a ...
Mounting hole, 3 ... Resistor, 6 ... External lead cord, 7a, 7b
…… Insulator, 8 …… Screw terminal.
Claims (2)
からなるハウジングに、外部引出コード若しくは端子を
設けた抵抗体を収納し、セメントを充填してなる電力用
抵抗器であって、 前記ハウジングは、その内底部から立上り、内部で発生
した熱をハウジング外部まで伝導する、ハウジングと同
一材からなる内部ヒートシンク部を備え、この内部ヒー
トシンク部は、前記ハウジングの幅方向中央部に位置
し、長手方向は前記ハウジングの壁面付近まで延びてお
り、高さ方向は前記ハウジングと略等しい高さを有し、
前記抵抗体は、前記内部ヒートシンク部を略取り巻くよ
うに配置されていることを特徴とする電力用セメント抵
抗器。1. A power resistor comprising a box-shaped housing having an opening on one side and a housing made of a heat conductive material, in which a resistor provided with an external lead-out cord or a terminal is housed and filled with cement. The housing is provided with an internal heat sink portion that rises from the inner bottom of the housing and conducts the heat generated inside to the outside of the housing, and is made of the same material as the housing. Is located, the longitudinal direction extends to near the wall surface of the housing, and the height direction has substantially the same height as the housing,
The electric power cement resistor according to claim 1, wherein the resistor is arranged so as to substantially surround the internal heat sink portion.
用の貫通孔若しくはねじを切った穴を有することを特徴
とする請求項１記載の電力用セメント抵抗器。2. The power cement resistor according to claim 1, wherein the internal heat sink has a through hole or a threaded hole for mounting in the height direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3727390U JP2517195Y2 (en) | 1990-04-09 | 1990-04-09 | Cement resistor for electric power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3727390U JP2517195Y2 (en) | 1990-04-09 | 1990-04-09 | Cement resistor for electric power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03128902U JPH03128902U (en) | 1991-12-25 |
| JP2517195Y2 true JP2517195Y2 (en) | 1996-11-13 |
Family
ID=31544231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3727390U Expired - Lifetime JP2517195Y2 (en) | 1990-04-09 | 1990-04-09 | Cement resistor for electric power |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2517195Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4791397B2 (en) * | 2007-03-19 | 2011-10-12 | 株式会社キトー | Resistor, hoisting machine using the resistor as a regenerative braking resistor |
| JP5135851B2 (en) * | 2007-03-30 | 2013-02-06 | パナソニック株式会社 | Metal plate resistor |
| JP5135850B2 (en) * | 2007-03-30 | 2013-02-06 | パナソニック株式会社 | Metal plate resistor |
| JP6855991B2 (en) * | 2017-09-20 | 2021-04-07 | 株式会社デンソー | Resistor |
-
1990
- 1990-04-09 JP JP3727390U patent/JP2517195Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03128902U (en) | 1991-12-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |