JP2000125516A - Inner rotor type brushless motor, and method of detecting temperature of the motor - Google Patents
Inner rotor type brushless motor, and method of detecting temperature of the motorInfo
- Publication number
- JP2000125516A JP2000125516A JP11321042A JP32104299A JP2000125516A JP 2000125516 A JP2000125516 A JP 2000125516A JP 11321042 A JP11321042 A JP 11321042A JP 32104299 A JP32104299 A JP 32104299A JP 2000125516 A JP2000125516 A JP 2000125516A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- diode
- temperature
- coil
- inner rotor
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、インナーロータ型ブラ
シレスモータ及び該モータのコイルの温度の検出方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner rotor type brushless motor and a method for detecting a temperature of a coil of the motor.
【０００２】[0002]
【従来の技術】従来、インナーロータ型ブラシレスモー
タは、そのコイル温度検出素子を配置するスペースの確
保が難しく、故意な装着スペースを確保するとその分モ
ータ構造の簡素化に繋がらないという問題があった。2. Description of the Related Art Conventionally, an inner rotor type brushless motor has a problem that it is difficult to secure a space for disposing a coil temperature detecting element, and if a intentional mounting space is secured, the motor structure cannot be simplified. .
【０００３】[0003]
【発明が解決しようとする課題】本発明は、インナーロ
ータ型ブラシレスモータのコイル温度を検出するダイオ
ードの配置を簡素化したブラシレスモータ及び該モータ
のコイル温度検出方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a brushless motor in which the arrangement of a diode for detecting the coil temperature of an inner rotor type brushless motor is simplified, and a method of detecting the coil temperature of the motor.
【０００４】[0004]
【課題を解決するための手段】本発明は、モータコイル
間にダイオードを設け、該ダイオードの順方向電圧の温
度特性（−２ｍＶ／℃）を利用して、モータコイルの温
度を検出する。According to the present invention, a diode is provided between motor coils, and a temperature of the motor coil is detected by using a temperature characteristic (-2 mV / ° C.) of a forward voltage of the diode.
【０００５】[0005]
【実施例】図１は、本発明の実施例を示している。以下
に、モータコイル温度を検出する態様を説明する。FIG. 1 shows an embodiment of the present invention. Hereinafter, a mode for detecting the motor coil temperature will be described.
【０００６】図１に示すように、ロータマグネットの磁
束による誘起電圧が相殺するように、ボビンスロット
５’の一端部において、コイル１とコイル１’の間にダ
イオード２’のリード部６’を束ねて接着剤３’で貼り
つける。As shown in FIG. 1, a lead 6 'of a diode 2' is inserted between a coil 1 and a coil 1 'at one end of a bobbin slot 5' so that an induced voltage due to a magnetic flux of a rotor magnet is offset. Bundle and paste with adhesive 3 '.
【０００７】前記ダイオード２’の引き出し端子のうち
アノード端子Ａ側に図２に示すように電流制限抵抗Ｒ及
び直流電源＋ＤＣ（１２Ｖ）を接続する。前記ダイオー
ド２’の順方向電圧ｖは、約−２ｍＶ／℃の温度特性を
有するため、この順方向電圧ｖを測定することによりコ
イル温度を検出することができる。常温（２５℃）にお
ける順方向電圧は、約０．６Ｖ〜０．７Ｖであるから、
モータのコイルの限界温度を約１３０℃とすると、この
温度における順方向電圧は、約０．５Ｖまで降下する。
このように順方向電圧を検出することによりコイルの温
度変化を順方向電圧の変化として検出することができ温
度検出が可能となる。As shown in FIG. 2, a current limiting resistor R and a DC power supply + DC (12 V) are connected to the anode terminal A side of the lead terminal of the diode 2 '. Since the forward voltage v of the diode 2 ′ has a temperature characteristic of about −2 mV / ° C., the coil temperature can be detected by measuring the forward voltage v. Since the forward voltage at normal temperature (25 ° C.) is about 0.6 V to 0.7 V,
Assuming that the limit temperature of the motor coil is about 130 ° C., the forward voltage at this temperature drops to about 0.5V.
By detecting the forward voltage in this manner, a change in the coil temperature can be detected as a change in the forward voltage, and the temperature can be detected.
【０００８】ここで、前記リード部６’を束ねることに
より図３に示すようにリード部６’に誘起電圧ｅは発生
せず、誘起電圧が重畳されない順方向電圧ｖが得られ、
またダイオード２’はコイル外形よりはみ出ることはな
く、かつコイルとダイオードとの密着性は良くなり接着
剤の塗布量も少なくて済むことになる。Here, by bundling the lead portions 6 ', as shown in FIG. 3, no induced voltage e is generated in the lead portion 6', and a forward voltage v in which no induced voltage is superimposed is obtained.
Also, the diode 2 'does not protrude beyond the outer shape of the coil, the adhesion between the coil and the diode is improved, and the amount of adhesive applied is reduced.
【０００９】[0009]
【発明の効果】本発明は、コイル温度検出用のダイオー
ドをモータコイル間に貼り付けたから、故意な貼り付け
箇所の確保は不必要となり、固定する接着剤の塗布量が
減るとともに、ダイオードのリード線を短くすることが
できる。According to the present invention, since the diode for detecting the coil temperature is attached between the motor coils, it is not necessary to secure a deliberate attachment portion, the amount of adhesive to be fixed is reduced, and the lead of the diode is reduced. Lines can be shortened.
【図１】本発明の実施例を示す図である。FIG. 1 is a diagram showing an embodiment of the present invention.
【図２】本発明の概略結線図である。FIG. 2 is a schematic connection diagram of the present invention.
【図３】本発明の動作波形図である。FIG. 3 is an operation waveform diagram of the present invention.
１’・・モータコイル ２’・・ダイオード ３’・・
接着剤 ４・・コイルボビン ５’・・コイルボビンス
ロット ６’・・リード部1 '... Motor coil 2' ... Diode 3 '...
Adhesive 4 Coil bobbin 5 'Coil bobbin slot 6' Lead
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１１年１１月１１日（１９９９．１１．
１１）[Submission date] November 11, 1999 (1999.11.
11)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図２[Correction target item name] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図２】 FIG. 2
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図３[Correction target item name] Figure 3
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図３】 FIG. 3
Claims (2)
いて、モータコイル間にダイオードを接着し、コイル間
に束ねて接着されたダイオードのリード部をモータ外へ
引き出して検出回路に接続し、該検出回路でモータコイ
ル温度を検出するようにしたブラシレスモータ。In an inner rotor type brushless motor, a diode is adhered between motor coils, a lead portion of the diode which is bundled and adhered between the coils is pulled out of the motor and connected to a detection circuit. Brushless motor that detects coil temperature.
いて、モータコイル間にダイオードを接着し、コイル間
に束ねて接着されたダイオードのリード部をモータ外へ
引き出して検出回路に接続し、 前記検出回路に出力される直流電圧を用いてモータコイ
ルの温度を検出することを特徴とするブラシレスモータ
の温度検出方法。2. In an inner rotor type brushless motor, a diode is bonded between motor coils, a lead portion of the bonded diode which is bundled between the coils is pulled out of the motor, connected to a detection circuit, and output to the detection circuit. A method for detecting a temperature of a brushless motor, comprising detecting a temperature of a motor coil using a DC voltage to be applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11321042A JP2000125516A (en) | 1999-11-11 | 1999-11-11 | Inner rotor type brushless motor, and method of detecting temperature of the motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11321042A JP2000125516A (en) | 1999-11-11 | 1999-11-11 | Inner rotor type brushless motor, and method of detecting temperature of the motor |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3205611A Division JPH0549224A (en) | 1991-07-23 | 1991-07-23 | Inner rotor type brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000125516A true JP2000125516A (en) | 2000-04-28 |
Family
ID=18128163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11321042A Pending JP2000125516A (en) | 1999-11-11 | 1999-11-11 | Inner rotor type brushless motor, and method of detecting temperature of the motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000125516A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006340580A (en) * | 2005-06-06 | 2006-12-14 | Toyota Motor Corp | Rotary electric machine |
| CN112345105A (en) * | 2020-10-16 | 2021-02-09 | 中国航发四川燃气涡轮研究院 | Lead structure for temperature test of compressor rotor disc body |
-
1999
- 1999-11-11 JP JP11321042A patent/JP2000125516A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006340580A (en) * | 2005-06-06 | 2006-12-14 | Toyota Motor Corp | Rotary electric machine |
| CN112345105A (en) * | 2020-10-16 | 2021-02-09 | 中国航发四川燃气涡轮研究院 | Lead structure for temperature test of compressor rotor disc body |
| CN112345105B (en) * | 2020-10-16 | 2023-06-23 | 中国航发四川燃气涡轮研究院 | Lead structure for testing temperature of rotor disc body of air compressor |
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