JPH0670528A - Frequency generator for dc brushless motor - Google Patents
Frequency generator for dc brushless motorInfo
- Publication number
- JPH0670528A JPH0670528A JP23267892A JP23267892A JPH0670528A JP H0670528 A JPH0670528 A JP H0670528A JP 23267892 A JP23267892 A JP 23267892A JP 23267892 A JP23267892 A JP 23267892A JP H0670528 A JPH0670528 A JP H0670528A
- Authority
- JP
- Japan
- Prior art keywords
- frequency generator
- circuit board
- magnet
- coil
- brushless motor
- 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
- 238000005476 soldering Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 17
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Brushless Motors (AREA)
- Windings For Motors And Generators (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は，特に電子計算機の周辺
機器や，複写機等の事務用機器の駆動に使用される直流
ブラシレスモ−タ用周波数発電機の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a frequency generator for a DC brushless motor which is used especially for driving peripheral equipment of electronic computers and office equipment such as copying machines.
【０００２】[0002]
【従来の技術】まず，図９〜図１２により従来技術の内
容・構成を説明する。図９は従来の周波数発電機を有す
る直流ブラシレスモ−タの半部縦断正面図，図１０はこ
の周波数発電機のコイルパタ−ンの正面図を示す。図９
において，１は回路基板，２はブラケット，３はロ−タ
である。ロ−タ３は周波数発電機用マグネット４とロ−
タマグネット５とこれ等を保持するホルダ−３ａとホル
ダ−３ａと一体となってブッシュ３ｂと共に支えるシャ
フト１３から成る。６はステ−タ，６ａはステ−タ巻線
である。ステ−タ６はロ−タマグネット５と少隙を隔て
て対向するよう配置され，軸受ハウジング９，ボ−ルベ
アリング１１ａ，１１ｂを介してシャフト１３に支承さ
れる。なお，８はナイロングリップ，１０はねじ，１２
は止め輪で，ロ−タ３はステ−タ６のまわりに自由自在
に回転し得るようになつている。一方，周波数発電機マ
グネット４と僅かなギャップを隔てて面対向して回路基
板１上に周波数発電機コイル７が配置される。図１０は
周波数発電機コイル７の配置構造を示すもので，１は回
路基板，７は周波数発電機コイル，７ａは回路基板１上
に形成したパタ−ンコイルの一素線で，周波数マグネッ
ト４の中心に対し磁極の存在する領域につきほぼ３６０
゜にわたって設けられる。2. Description of the Related Art First, the contents and structure of the prior art will be described with reference to FIGS. FIG. 9 is a vertical sectional front view of a DC brushless motor having a conventional frequency generator, and FIG. 10 is a front view of a coil pattern of this frequency generator. Figure 9
In the figure, 1 is a circuit board, 2 is a bracket, and 3 is a rotor. The rotor 3 is a rotor for the frequency generator magnet 4 and the rotor.
The magnets 5 and the holder 3a for holding them and the shaft 13 integrally supporting the holder 3a and the bush 3b. Reference numeral 6 is a stator, and 6a is a stator winding. The stator 6 is arranged so as to face the rotor magnet 5 with a small gap, and is supported by the shaft 13 via the bearing housing 9 and the ball bearings 11a and 11b. In addition, 8 is a nylon grip, 10 is a screw, 12
Is a retaining ring, and the rotor 3 can freely rotate around the stator 6. On the other hand, a frequency generator coil 7 is arranged on the circuit board 1 so as to face the frequency generator magnet 4 with a slight gap therebetween. FIG. 10 shows the layout structure of the frequency generator coil 7. Reference numeral 1 is a circuit board, 7 is a frequency generator coil, and 7a is a single strand of the pattern coil formed on the circuit board 1. Approximately 360 per region where the magnetic pole exists with respect to the center
It is provided over a degree.
【０００３】図１１は図９に示した周波数発電機マグネ
ット４の着磁された磁極Ｎ，Ｓの磁性４ａを示したもの
である。図１２はロ−タマグネット５を内面から展開し
てロ−タ着磁磁極５ａの配置状態を示したものである。
図９〜図１２の構成をとることによって，ロ−タ着磁磁
極５ａの極性をホ−ル素子（図示せず）により検知し，
ステ−タ６に巻かれた巻線への電流を順次切り換えを行
うことによってロ−タ３を回転させる。一方，周波数発
電機マグネット４と回路基板１のほぼ全周に配した周波
数発電機コイル７の相互発電作用により発生する周波数
発電機出力により回転数を制御する。もちろん回転力を
発生させるためのドライブ回路部とスピ−ドを制御する
ためのコントロ−ル回路部（詳細は図示せず）が回路基
板１のロ−タ３側の領域１４にはデスクリ−ト部品をそ
の反対側（内面側）にはテップ部品を配置してあるもの
である。なお，図１３は，従来例の周波数発電機コイル
パタ−ンが３６０°にわたって配置している場合の出力
電圧波形図，また図１４は従来例のコイルパタ−ン３６
０°をその約１／４の９０°の領域に縮小した場合の出
力電圧波形図で，いずれも横軸は時間軸（ｍｓｅｃ），
縦軸は出力電圧（ｍＶ）で表示してある。FIG. 11 shows the magnetism 4a of the magnetized magnetic poles N and S of the frequency generator magnet 4 shown in FIG. FIG. 12 shows the arrangement of the rotor magnetized magnetic poles 5a when the rotor magnet 5 is expanded from the inner surface.
9 to 12, the polarity of the rotor magnetized magnetic pole 5a is detected by a hall element (not shown),
The rotor 3 is rotated by sequentially switching the currents to the windings wound around the stator 6. On the other hand, the rotation speed is controlled by the frequency generator output generated by the mutual power generation action of the frequency generator magnet 4 and the frequency generator coil 7 arranged almost all around the circuit board 1. Of course, a drive circuit section for generating a rotational force and a control circuit section (details not shown) for controlling the speed are provided in the area 14 on the rotor 3 side of the circuit board 1 in a discrete manner. The parts are arranged on the opposite side (inner surface side) of the parts. 13 is an output voltage waveform diagram when the conventional frequency generator coil pattern is arranged over 360 °, and FIG. 14 is the conventional coil pattern 36.
In the output voltage waveform diagram when 0 ° is reduced to a 90 ° region that is about ¼ of that, the horizontal axis is the time axis (msec),
The vertical axis represents the output voltage (mV).
【０００４】[0004]
【発明が解決しようとする課題】従来のものは，上記の
ように，回路基板１上に形成させた周波数発電機コイル
７をマグネット４側に配置するものであったから，高さ
のあるロ−タ側に，主としてデスクリ−ト部品を配置
し，裏面側のブラケット２との隙間は少ないので背の低
い電子部品を配置するのが一般的であった。即ち，従来
のものでは，周波数発電機コイル７のコイルパタ−ン７
ａがあるため回路基板１の片面化が困難であった。ま
た，回路基板１の全面積に対し周波数発電機コイル７の
占める面積が大きく，回路基板１を小型化するのも困難
であった。さらに，従来のものでは回路基板１上に直
接，周波数発電機コイル７を形成しているため，発電機
用マグネット４の径が変わると回路基板１上のコイルパ
タ−ン７ａも全面的に変更せねばならず，同一の回路基
板１の簡単な変更では対応できないという問題点があっ
た。本発明は従来のものの上記課題（問題点）を解決す
るようにした直流ブラシレスモ−タ用周波数発電機を提
供することを目的とする。In the conventional device, the frequency generator coil 7 formed on the circuit board 1 is arranged on the side of the magnet 4 as described above, and therefore, it has a high height. Generally, the discrete parts are arranged on the computer side, and the short electronic parts are generally arranged because there is a small gap with the bracket 2 on the rear surface side. That is, in the conventional case, the coil pattern 7 of the frequency generator coil 7 is used.
Since there is a, it is difficult to form the circuit board 1 on one side. Further, the area occupied by the frequency generator coil 7 is large relative to the entire area of the circuit board 1, and it is difficult to downsize the circuit board 1. Further, in the conventional one, since the frequency generator coil 7 is formed directly on the circuit board 1, when the diameter of the generator magnet 4 changes, the coil pattern 7a on the circuit board 1 must be completely changed. However, there is a problem that a simple change of the same circuit board 1 cannot be applied. An object of the present invention is to provide a frequency generator for a DC brushless motor, which solves the above-mentioned problems (problems) of the conventional one.
【０００５】[0005]
【課題を解決するための手段】本発明に成る直流ブラシ
レスモ−タ用周波数発電機は上記のような課題（問題
点）を解決するために，周波数発電機コイルを基板上に
直接，形成するのではなく，必要な周波数発電機コイル
を，別途に一電子部品として製作し，これを基板上の所
定の位置に半田付け等で固定するようにした。この場
合，周波数発電機コイルは，バックヨ−クとして効果の
ある高透磁率材料である鉄基板上に設けて効率を増大
し，円周角にて従来ほぼ３６０°必要とした周波数発電
機コイルを約１／２〜１／４低度（９０°位）の領域に
集約縮小し，しかもこの鉄基板上に設けられる周波数発
電機コイルはコイルそのものを囲む扇形の最小スペ−ス
で形成することが望ましい。この結果，ロ−タ出力変更
のためロ−タマグネットや，周波数発電機マグネットの
内外径形状の変更に対しても，一電子部品としての周波
数発電機コイルを変更するのみで，基板そのものは取付
位置の変更程度で大幅な変更の必要をなくしたものであ
る。In order to solve the above problems (problems), the frequency generator for a DC brushless motor according to the present invention has a frequency generator coil formed directly on a substrate. Instead, the required frequency generator coil was separately manufactured as an electronic component, and this was fixed to the specified position on the board by soldering or the like. In this case, the frequency generator coil is provided on an iron substrate, which is a high-permeability material that is effective as a back yoke, to increase the efficiency, and the frequency generator coil that has conventionally required about 360 ° in the circumferential angle is used. The frequency generator coil, which is reduced to approximately 1/2 to 1/4 low (90 °), can be formed on the iron substrate with a minimum fan-shaped space surrounding the coil itself. desirable. As a result, even if the inner and outer diameter shapes of the rotor magnet and the frequency generator magnet are changed to change the rotor output, the frequency generator coil as one electronic component is changed, and the board itself is mounted. It eliminates the need for a major change in position.
【０００６】[0006]
【作用】上述のような構成においては，周波数発電機コ
イルを一つの電子部品として用意するため，ロ−タ側に
周波数発電機コイルを設ける場合でも，基板全体を両面
化する必要がなくなり，従って片面基板化が実現でき
る。また，鉄基板をバックヨ−クとして，発電機出力を
増大することができたので，スペ−スとしては従来の１
／２〜１／４程度に抑えられ，しかも周波数発電機コイ
ルを囲む部分は扇形にできるため最小のスペ−スで形成
できた。従って，従来円周角で約３６０°全領域を占め
ていた基板上でのスペ−スを大幅に減少できる。In the above-mentioned structure, since the frequency generator coil is prepared as one electronic component, even if the frequency generator coil is provided on the rotor side, it is not necessary to make the entire substrate double-sided. A single-sided board can be realized. Moreover, since the iron substrate can be used as a back yoke to increase the output of the generator, it can be used as a conventional space.
It was suppressed to about / 2 to 1/4, and the part surrounding the frequency generator coil could be formed into a fan shape, so that it could be formed with the smallest space. Therefore, the space on the substrate, which conventionally occupies the whole area of about 360 ° in the circumferential angle, can be greatly reduced.
【０００７】[0007]
【実施例】以下図面に示した第１及び第２の各実施例に
より本発明を具体的に説明する。 第１の実施例：図１は本発明を適用した周波数発電機の
基本構成となる実施例の半部縦断正面図で，同図におい
て，従来例のものに対応する構成については図９と同一
の符号を付して示した。１５は本発明の周波数発電機コ
イルで，周波数発電機用マグネット４に少隙を隔てて回
路基板１上に半田付け等の手段で固定される。図２，図
３は夫々本発明による周波数発電機のコイルパタ−ンの
詳細構造を示すための平面図，縦断側面図である。図
２，図３に示すように，周波数発電機コイル１５は，コ
イルパタ−ン１５ａと位置決め部１５ｂ，１５ｃとより
成り，高透磁率材料のたとえば鉄基板部１５ｆ上に形成
され，コイルパタ−ン１５ａを囲む最小の形状といえる
扇形形状に形成される。なお，回路基板１への固定はコ
イルパタ−ン１５ａの両端結線部とこの両端結線部に対
応した回路基板１の所定の位置へジャンパ−線１５ｄ，
１５ｅで結線し半田付け等で固定される。回路基板１と
発電機コイル１５との位置決めは押し出し部１５ｂ1，
１５ｃ1，と穴１５ｂ2，１５ｃ2とより成る位置決め部
１５ａ，１５ｂで実施する例を示したが，この位置決め
手段は穴であっても，また突起であってもどちらでも差
し支えない。また位置決め箇所は形状大きさによっては
１箇所でも，複数箇所であっても差し支えない。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the first and second embodiments shown in the drawings. First Embodiment: FIG. 1 is a half longitudinal sectional front view of an embodiment which is a basic structure of a frequency generator to which the present invention is applied. In FIG. 1, the structure corresponding to that of the conventional example is the same as FIG. The symbol is attached. Reference numeral 15 is a frequency generator coil of the present invention, which is fixed to the frequency generator magnet 4 with a small gap on the circuit board 1 by soldering or the like. 2 and 3 are a plan view and a vertical side view, respectively, showing the detailed structure of the coil pattern of the frequency generator according to the present invention. As shown in FIGS. 2 and 3, the frequency generator coil 15 is composed of a coil pattern 15a and positioning portions 15b and 15c and is formed on a high magnetic permeability material such as an iron substrate portion 15f. It is formed in a fan shape that can be said to be the smallest shape that surrounds. The fixing to the circuit board 1 is performed by connecting the both ends of the coil pattern 15a and the jumper wires 15d, to the predetermined positions of the circuit board 1 corresponding to the both ends of the connection.
The wires are connected at 15e and fixed by soldering or the like. Positioning of the circuit board 1 and the generator coil 15 is performed by the push-out portion 15b 1 ,
Although an example is shown in which the positioning portions 15a and 15b composed of 15c 1 and holes 15b 2 and 15c 2 are used, the positioning means may be holes or protrusions. Further, depending on the shape and size, the number of positioning positions may be one or plural.
【０００８】第２の実施例：図４〜図６は本発明の周波
数発電機コイル１５′の第２の実施例を示すものであ
る。なお，図４は平面図，図５は正面図，図６は側面図
である。本実施例では，第１及び第２の各コイルパタ−
ン１５ａ′，１５ａ″を発電機の出力を増大させるため
に，複数列（本実施例では２列のダブルパ−ンコイル）
のパタ−ンコイルとなるように並列的に配置したもので
ある。また，各コイルパタ−ンの終端４箇所の折り曲げ
部１５ｇを設けて，回路基板１への固定，半田付けが簡
略となるようにしている。Second Embodiment: FIGS. 4 to 6 show a second embodiment of the frequency generator coil 15 'of the present invention. 4 is a plan view, FIG. 5 is a front view, and FIG. 6 is a side view. In this embodiment, the first and second coil patterns are used.
In order to increase the output of the generator, a plurality of rows 15a 'and 15a "(two rows of double-pan coils in this embodiment) are used.
The pattern coils are arranged in parallel to each other. Further, bent portions 15g are provided at four ends of each coil pattern so that fixing to the circuit board 1 and soldering can be simplified.
【０００９】図７は本発明の第１の実施例の場合につい
て後述の表１の条件で測定した出力電圧の波形図，図８
は本発明の第２の実施例の場合について上記条件で測定
した出力電圧の波形図を夫々示したものである。なお，
これら各図中，横軸は時間軸であるが，図７は（ｍｓｅ
ｃ），図８も（ｍｓｅｃ）で，また各縦軸は出力電圧
（ｍＶ）で表示してある。これらの本発明の測定結果
（図７，図８）と従来例のものについての測定結果（図
１３，図１４）とを夫々比較すると次の点が確認され
た。まず，従来例のものについて言えば，図１３に示す
コイルパタ−ンが３６０°である標準型の場合に比べ，
図１４に示したコイルパタ−ンを約１／４の９０°とし
た場合は出力電圧は当然１／４の値となる。次に，本発
明の第１の実施例のように，バックヨ−クとして高透磁
率の鉄基板を使用した場合には，図７に示すように，コ
イルパタ−ンを１／４の領域に縮小しても出力電圧が図
１３のものの約６０％以上の値となり，実用的には充分
スピ−ドコントロ−ルできるものであることが確認され
た。さらに，ダブルパタ−ンコイルとした第２の実施例
の場合には，図８に示すように，出力電圧は図１３の場
合の８０％弱となり，さらに形状を縮小しても実用可能
であることが確認された。FIG. 7 is a waveform diagram of the output voltage measured under the conditions of Table 1 described later in the case of the first embodiment of the present invention, and FIG.
Are waveform diagrams of the output voltage measured under the above conditions in the case of the second embodiment of the present invention. In addition,
In each of these figures, the horizontal axis is the time axis, but in FIG.
c) and FIG. 8 also show (msec), and each vertical axis shows the output voltage (mV). The following points were confirmed by comparing the measurement results of the present invention (FIGS. 7 and 8) with the measurement results of the conventional example (FIGS. 13 and 14). First, regarding the conventional example, compared to the case of the standard type in which the coil pattern shown in FIG. 13 is 360 °,
When the coil pattern shown in FIG. 14 is set to 90 °, which is about 1/4, the output voltage naturally becomes 1/4. Next, when an iron substrate having a high magnetic permeability is used as the back yoke as in the first embodiment of the present invention, the coil pattern is reduced to a 1/4 region as shown in FIG. However, the output voltage was about 60% or more of that of FIG. 13, and it was confirmed that the output voltage could be sufficiently controlled in practical use. Further, in the case of the second embodiment in which the double pattern coil is used, the output voltage becomes a little less than 80% of that in the case of FIG. 13, as shown in FIG. confirmed.
【００１０】表１は本発明と従来例とを具体的に比較す
るために，上記の出力波形図で示した測定結果を測定条
件と共に数値で示したもので，同表には図７，図８及び
図１３，図１４の測定結果と各種条件コイルパタ−ンの
角度，全マグネット極数に対する縮小極数の割合，コイ
ルパタ−ンがシングルかダブルか，又，マグネットとコ
イルパタ−ンのギャップ，鉄基板の有無，回転数の測定
条件などを一覧表にして示してある。In order to specifically compare the present invention with the conventional example, Table 1 shows numerically the measurement results shown in the above output waveform diagram together with the measurement conditions. 8 and FIG. 13 and FIG. 14 and various conditions Coil pattern angle, ratio of reduced poles to total magnet poles, whether coil pattern is single or double, gap between magnet and coil pattern, iron The table shows the presence / absence of the substrate and the measurement conditions for the rotation speed.
【００１１】[0011]
【表１】 [Table 1]
【００１２】[0012]
【発明の効果】本発明を適用したブラシレスモ−タ用周
波数発電機は，上記のよう構成したから，次に述べるよ
うな優れた効果を有する。 従来のものは，ロ−タ側に周波数発電機コイルパタ−
ンを配置するものであったから両面基板とせざるを得な
かったが，本発明のものでは基板上からコイルパタ−ン
を取り去り，周波数発電機コイルを別に一つの電子部品
として用意するようにしたので，片面基板化が実現でき
るようになった。 この周波数発電機コイルを鉄基板等の高透磁率材料の
基板上に形成した場合には，出力効率が大幅に増大し，
また従来のものに比べ発電機コイルを１／２〜１／４の
円周角領域に縮小できた。 さらに，コイルパタ−ンを扇形形状内に収納するよう
に形成した場合には，発電機コイルは，さらにコンパク
ト化することができた。 周波数発電機マグネットの径の変更に対しても，周波
数発電機コイルと，この周波数発電機コイルの回路基板
上への取付位置を変更するだけで，回路基板そのものを
大きく変更することなく対応できる。The frequency generator for a brushless motor to which the present invention is applied has the following excellent effects because it is configured as described above. The conventional type has a frequency generator coil pattern on the rotor side.
However, in the present invention, the coil pattern is removed from the substrate and the frequency generator coil is separately prepared as one electronic component. A single-sided board can now be realized. When this frequency generator coil is formed on a substrate of high magnetic permeability material such as an iron substrate, the output efficiency increases significantly,
Further, the generator coil can be reduced to a circumferential angle region of 1/2 to 1/4 as compared with the conventional one. Furthermore, when the coil pattern was formed so as to be housed in a fan shape, the generator coil could be made more compact. The diameter of the frequency generator magnet can be changed without changing the circuit board itself by simply changing the frequency generator coil and the mounting position of the frequency generator coil on the circuit board.
【図１】本発明による周波数発電機を含む基本構成の実
施例を示した直流ブラシレスモ−タの半部縦断正面図で
ある。FIG. 1 is a vertical sectional front view of a half portion of a DC brushless motor showing an embodiment of a basic configuration including a frequency generator according to the present invention.
【図２】本発明による周波数発電機コイルパタ−ンの第
１の実施例の平面図である。FIG. 2 is a plan view of a first embodiment of a frequency generator coil pattern according to the present invention.
【図３】図２に示す実施例における周波数発電機の鉄基
板使用の構成を示した縦断正面図である。FIG. 3 is a vertical cross-sectional front view showing a configuration using an iron substrate of the frequency generator in the embodiment shown in FIG.
【図４】本発明による周波数発電機コイルパタ−ンの第
２の実施例を示す平面図である。FIG. 4 is a plan view showing a second embodiment of the frequency generator coil pattern according to the present invention.
【図５】図４の実施例における正面図である。5 is a front view of the embodiment shown in FIG.
【図６】図４の実施例における側面図である。FIG. 6 is a side view of the embodiment shown in FIG.
【図７】本発明による周波数発電機用マグネットを９０
°の領域で鉄基板上にコイルパタ−ンを設けた場合の出
力電圧の波形図である。FIG. 7 illustrates a magnet for a frequency generator according to the present invention 90
It is a waveform diagram of the output voltage when the coil pattern is provided on the iron substrate in the region of °.
【図８】本発明による周波数発電機用マグネット極数を
１００極としてコイルパタ−ンを２４極分で，９０°の
領域とし鉄基板に設け，しかもダブルパタ−ンコイルと
した場合の出力電圧の波形図である。FIG. 8 is a waveform diagram of an output voltage when the number of magnet poles for the frequency generator according to the present invention is 100 and the coil pattern is 24 poles and is provided in a 90 ° region on the iron substrate, and is a double pattern coil. Is.
【図９】従来例の周波数発電機を含む直流ブラシレスモ
−タの半部縦断正面図である。FIG. 9 is a vertical sectional front view of a DC brushless motor including a conventional frequency generator.
【図１０】図９の周波数発電機コイルパタ−ンの平面図
である。10 is a plan view of the frequency generator coil pattern of FIG. 9. FIG.
【図１１】図９の周波数発電機用マグネットの着磁磁極
の極性を示した下面図である。11 is a bottom view showing the polarities of the magnetized magnetic poles of the frequency generator magnet of FIG. 9. FIG.
【図１２】図９の回転子マグネットの着磁磁極の極性を
示した内側から見た展開図である。FIG. 12 is a development view seen from the inside showing the polarity of the magnetized magnetic poles of the rotor magnet of FIG. 9.
【図１３】従来例の周波数発電機の出力電圧の波形図
で，周波数発電機コイルパタ−ンは標準型の３６０°に
わたっている場合である。FIG. 13 is a waveform diagram of the output voltage of the conventional frequency generator, in the case where the frequency generator coil pattern extends over 360 ° of the standard type.
【図１４】従来例の周波数発電機の出力電圧の波形図
で，コイルパタ−ンを９０°の領域に縮小した場合を示
す。FIG. 14 is a waveform diagram of the output voltage of the conventional frequency generator, showing a case where the coil pattern is reduced to a 90 ° region.
１：回路基板 ２：ブラケット ３：ロ−タ ４：周波数発電機用マグネット ５：ロ−タマグネット １５：周波数発電機コイル １５ａ，１５ａ′，１５ａ″：コイルパタ−ン １５ｆ：鉄基板部 1: Circuit board 2: Bracket 3: Rotor 4: Magnet for frequency generator 5: Rotor magnet 15: Frequency generator coil 15a, 15a ', 15a ": Coil pattern 15f: Iron substrate part
Claims (4)
ネットとを有するロ−タより成り，このロ−タとブラケ
ットとの間に制御回路を構成する回路基板を配置し，前
記周波数発電機用マグネットは，円周方向に複数の磁極
を有し，かつこのマグネットに面対向して，わずかな空
隙を隔てて上記回路基板を配置させ，この回路基板上に
周波数発電機のコイルを設けて周波数発電機機能を持た
せ前記発電機コイルよりの出力信号を速度検出信号とし
て使用して速度制御を行う直流ブラシレスモ−タにおい
て，上記周波数発電機マグネットに平行し，上記回路基
板上の一部に，周波数発電機用コイル機能を持たせた周
波数発電機のコイルパタ−ンを一つの電子部品として別
途製作したものを半田付け等で固定するようにしたこと
を特徴とする直流ブラシレスモ−タ用周波数発電機。1. A frequency generator comprising a rotor having a magnet and a rotor magnet, wherein a circuit board constituting a control circuit is arranged between the rotor and the bracket, and the frequency generator is used. The magnet has a plurality of magnetic poles in the circumferential direction, and the circuit board is arranged face-to-face with the magnet with a slight gap, and a coil of a frequency generator is provided on the circuit board. In a DC brushless motor that has a generator function and uses the output signal from the generator coil as a speed detection signal to control the speed, a DC brushless motor that is parallel to the frequency generator magnet and has a part on the circuit board. , A DC generator characterized in that a coil pattern of a frequency generator having a coil function for a frequency generator is separately manufactured as one electronic component and fixed by soldering or the like. Frequency generator for lassless motor.
材料を使用した請求項１記載の直流ブラシレスモ−タ用
周波数発電機。2. The frequency generator for a DC brushless motor according to claim 1, wherein the frequency generator is made of a high magnetic permeability material such as an iron substrate.
複数個並列に上記回路基板上に配置するようにした請求
項１乃至２のいずれかに記載の直流ブラシレスモ−タ用
周波数発電機。3. The coil pattern of the frequency generator,
The frequency generator for a DC brushless motor according to claim 1, wherein a plurality of frequency generators are arranged in parallel on the circuit board.
機のコイルパタ−ンを含め，全体として扇形に形成する
ようにした請求項１乃至３のいずれかに記載の直流ブラ
シレスモ−タ用周波数発電機。4. The frequency generator for a DC brushless motor according to claim 1, wherein the coil of the frequency generator is formed in a fan shape as a whole, including the coil pattern of the frequency generator. Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23267892A JPH0670528A (en) | 1992-08-10 | 1992-08-10 | Frequency generator for dc brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23267892A JPH0670528A (en) | 1992-08-10 | 1992-08-10 | Frequency generator for dc brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0670528A true JPH0670528A (en) | 1994-03-11 |
Family
ID=16943082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23267892A Pending JPH0670528A (en) | 1992-08-10 | 1992-08-10 | Frequency generator for dc brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0670528A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6475858A (en) * | 1987-09-17 | 1989-03-22 | O M Kenkyusho Kk | Solar system house |
| US5717268A (en) * | 1996-06-17 | 1998-02-10 | Philips Electronics North America Corp. | Electric motor with tachometer signal generator |
-
1992
- 1992-08-10 JP JP23267892A patent/JPH0670528A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6475858A (en) * | 1987-09-17 | 1989-03-22 | O M Kenkyusho Kk | Solar system house |
| US5717268A (en) * | 1996-06-17 | 1998-02-10 | Philips Electronics North America Corp. | Electric motor with tachometer signal generator |
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