JPH0410355B2 - - Google Patents
Info
- Publication number
- JPH0410355B2 JPH0410355B2 JP60235251A JP23525185A JPH0410355B2 JP H0410355 B2 JPH0410355 B2 JP H0410355B2 JP 60235251 A JP60235251 A JP 60235251A JP 23525185 A JP23525185 A JP 23525185A JP H0410355 B2 JPH0410355 B2 JP H0410355B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- arm
- deceleration transmission
- iron core
- housing
- 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
- 238000005406 washing Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 210000000078 claw Anatomy 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 8
- 239000011247 coating layer Substances 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 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 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Description
【発明の詳細な説明】
本発明は洗濯機の回転数検出装置に係り、特に
コイル部と永久磁石の取付け構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotation speed detection device for a washing machine, and more particularly to a mounting structure for a coil portion and a permanent magnet.
従来の装置は特開昭59−207193号公報に示すよ
うに発光素子と受光素子、又はホール素子と永久
磁石を用いるものが多く、これの取付け構造は洗
濯機特有の振動、及び衝撃などによる強度などが
考慮されていず実用的なものとなつていない。ま
た、取付け構造物が大きく取付け場所、及び価格
面で問題がある。
Conventional devices often use a light-emitting element and a light-receiving element, or a Hall element and a permanent magnet, as shown in Japanese Patent Application Laid-Open No. 59-207193, and the mounting structure of this device is resistant to vibrations and shocks peculiar to washing machines. etc. are not taken into consideration and it is not practical. In addition, the mounting structure is large, and there are problems in terms of mounting location and price.
本発明は従来品の欠点に鑑みなされたもので、
取り付け構造がコンパクトで簡単なものを提供せ
んとするものである。
The present invention was made in view of the drawbacks of conventional products.
The object is to provide a compact and simple mounting structure.
本発明は、洗濯槽と、この洗濯槽内に回動自在
に設けられる回転翼と、洗濯槽の外底部に設けら
れ、回転翼に回転を伝達する減速伝達手段と、こ
の減速伝達手段の下方に設けられ、モータの回転
を減速伝達手段に伝達するプーリと、コイル部お
よび永久磁石部よりなる回転数検出手段とを備え
ている洗濯機において、コイル部は鉄心とこの鉄
心に巻装するマグネツトワイヤーと外側を被覆す
る合成樹脂の被覆層とを有し、このコイルを支持
するアームを減速伝達手段の外ケースに設け、ア
ームを鋼板で形成するとともにこのアームに被覆
層を介してコイル部の鉄心が当接するようコイル
部をアームに取り付け、コイル部に対向するよう
に置かれる永久磁石をハウジングに収納し、ハウ
ジングの外側に少なくとも一対の支持足を設け、
支持足には挿入ガイド部および嵌合爪を設け、嵌
合爪を先端側に設け、プーリに形成されているだ
円形の孔にハウジングの支持足を挿入して挿入ガ
イド部が同孔の内側面に当接させるとともに嵌合
爪を同孔の縁部に係合させることを特徴とするも
のである。
The present invention provides a washing tub, a rotary blade rotatably provided in the washing tub, a deceleration transmission means provided at the outer bottom of the washing tub for transmitting rotation to the rotary blade, and a lower part of the deceleration transmission means. In a washing machine equipped with a pulley that transmits the rotation of the motor to a deceleration transmission means, and a rotation speed detection means consisting of a coil part and a permanent magnet part, the coil part consists of an iron core and a magnet wound around the iron core. An arm supporting the coil is provided on the outer case of the deceleration transmission means, and the arm is formed of a steel plate and the coil portion is attached to the arm through the coating layer. A coil part is attached to the arm so that the iron core of the coil part comes into contact with the arm, a permanent magnet placed opposite to the coil part is housed in a housing, and at least one pair of support legs are provided on the outside of the housing,
The support leg is provided with an insertion guide part and a mating claw, and the mating claw is provided on the tip side.The support leg of the housing is inserted into the oval hole formed in the pulley, and the insertion guide part is inserted into the hole. This feature is characterized in that the fitting claw is brought into contact with the side surface and engaged with the edge of the hole.
本発明の実施例を第１図、第２図、第３図、第
４図、第５図及び第６図により説明すると、１は
洗濯機の減速及びクラツチ機構部等を含む減速伝
達手段である。モーターからの動力をプーリー２
等を介して減速伝達手段１に伝達する。この減速
伝達手段１を介してモーターの回転は攪拌翼１９
又は洗濯槽２０に伝達され、洗濯又は脱水を行
う。この減速伝達手段１は鋼板の外ケースで保護
されている。
Embodiments of the present invention will be explained with reference to FIGS. 1, 2, 3, 4, 5, and 6. Reference numeral 1 denotes a deceleration transmission means including a deceleration and clutch mechanism of the washing machine. be. Power from the motor is transferred to pulley 2
The signal is transmitted to the deceleration transmitting means 1 via etc. The rotation of the motor is controlled by the stirring blade 19 via this deceleration transmission means 1.
Alternatively, the water is transmitted to the washing tub 20 for washing or dehydration. This deceleration transmission means 1 is protected by an outer case made of steel plate.
３は回転数検出装置のコイル部で、前記外ケー
ス３の外周の一部に固定されたＬ字形の鋼板のア
ーム４に固着され、プーリー２に装着された永久
磁石５と一定間隙を保つて対応している。 Reference numeral 3 denotes a coil portion of the rotation speed detection device, which is fixed to an L-shaped steel plate arm 4 fixed to a part of the outer periphery of the outer case 3, and is kept at a constant gap with the permanent magnet 5 attached to the pulley 2. Compatible.
コイル部３の下に鋼板アーム４を敷くことは、
永久磁石５と鋼板アーム４間での磁束密度を増し
コイルで多くの磁束を切ることになり、大きな起
電力を得ることができる。コイル部に鋼板をイン
サートした成形品も同じ効果を得ることができ
る。 Placing the steel plate arm 4 under the coil part 3 means that
The magnetic flux density between the permanent magnet 5 and the steel plate arm 4 is increased, and a large amount of magnetic flux is cut by the coil, so that a large electromotive force can be obtained. The same effect can be obtained with a molded product with a steel plate inserted into the coil part.
コイル部３は外枠ケース６に嵌め込まれてい
る。コイル部３は、マグネツトワイヤー７とこの
マグネツトワイヤー７の中心部に位置する鉄心８
と引出線９と口出部１０とこれらを被覆する耐水
性に優れた注型用のエポキシ樹脂の被覆層１１と
から形成されている。 The coil portion 3 is fitted into an outer frame case 6. The coil portion 3 includes a magnet wire 7 and an iron core 8 located at the center of the magnet wire 7.
It is formed of a leader wire 9, an outlet portion 10, and a coating layer 11 of an epoxy resin for casting having excellent water resistance and covering these.
マグネツトワイヤー７と引出線９との接続は口
出部１０から水が浸入してもマグネツトワイヤー
７に伝えないよう被覆部を８mm程度とり、先端部
にマグネツトワイヤー７をからめ半田付けし、直
接マグネツトワイヤー７が引出線９の被覆部に触
れないようにしてある。さらに外枠ケース６と注
型用エポキシ樹脂の被覆槽１１の接合面から水が
侵入しても半田付部に至らぬよう半田付け部に絶
縁用チユーブ１２をかぶせ半田付け部が直接外枠
ケース６に接触しないようにしてある。 The connection between the magnet wire 7 and the leader wire 9 is made by providing a covering section of about 8 mm so that even if water enters from the outlet 10, it will not be transmitted to the magnet wire 7, and the magnet wire 7 is intertwined with the tip and soldered. , the magnet wire 7 is prevented from directly touching the covering portion of the leader wire 9. Furthermore, the soldering part is covered with an insulating tube 12 so that even if water enters from the joint surface of the outer frame case 6 and the coating tank 11 of the epoxy resin for casting, it does not reach the soldering part, and the soldering part is directly connected to the outer frame case. 6 so as not to come into contact with it.
マグネツトワイヤー７の外径と鉄心８の外径比
率（ｄ／Ｄ×100）は第５図に示す如く効率的に
最大の起電力が得られるように30〜40％としてあ
る。また鉄心８の先端は前記鋼体のアームの表面
に0.5以下の絶縁層を介して当接している。 As shown in FIG. 5, the ratio of the outer diameter of the magnet wire 7 to the outer diameter of the iron core 8 (d/D×100) is set at 30 to 40% so as to efficiently obtain the maximum electromotive force. Further, the tip of the iron core 8 is in contact with the surface of the arm of the steel body through an insulating layer of 0.5 or less.
永久磁石５はハウジング１３に挿入され、プー
リー２に複数個装着されている。ハウジング１３
は中央部に内周面１４、円周リブ１５を設け、両
側に挿入ガイド１６、嵌合爪１７をもつ支持足を
有し、永久磁石５を内周面に挿入し、プーリー２
のだ円孔１８に嵌合固定される。 A plurality of permanent magnets 5 are inserted into the housing 13 and attached to the pulley 2. Housing 13
is provided with an inner circumferential surface 14 and a circumferential rib 15 in the center, and has support legs with insertion guides 16 and fitting claws 17 on both sides, a permanent magnet 5 is inserted into the inner circumferential surface, and a pulley 2
It is fitted and fixed into the oval hole 18.
回転数の検出はプーリーが回転し、コイルが永
久磁石と鋼板アーム間に発生する磁束を瞬時に切
ることで生じる起電力を、一定時間数えることで
行うものである。 The number of rotations is detected by counting the electromotive force generated when the pulley rotates and the coil instantaneously cuts off the magnetic flux generated between the permanent magnet and the steel plate arm over a certain period of time.
以上述べたように本願発明は、洗濯槽と、この
洗濯槽内に回動自在に設けられる回転翼と、洗濯
槽の外底部に設けられ、回転翼に回転を伝達する
減速伝達手段と、この減速伝達手段の下方に設け
られ、モータの回転を減速伝達手段に伝達するプ
ーリと、コイル部および永久磁石部よりなる回転
数検出手段とを備えている洗濯機において、コイ
ル部は鉄心とこの鉄心に巻装するマグネツトワイ
ヤーと外側を被覆する合成樹脂の被覆層とを有
し、このコイルを支持するアームを減速伝達手段
の外ケースに設け、アームを鋼板で形成するとと
もにこのアームに被覆層を介してコイル部の鉄心
が当接するようコイル部をアームに取り付け、コ
イル部に対向するように置かれる永久磁石をハウ
ジングに収納し、ハウジングの外側に少なくとも
一対の支持足を設け、支持足には挿入ガイド部お
よび嵌合爪を設け、嵌合爪を先端側に設け、プー
リに形成されているだ円形の孔にハウジングの支
持足を挿入して挿入ガイド部が同孔の内側面に当
接させるとともに嵌合爪を同孔の縁部に係合させ
ることを特徴とする洗濯機の回転数検出装置にあ
る。
As described above, the present invention includes a washing tub, a rotary blade rotatably provided in the washing tub, a deceleration transmission means provided at the outer bottom of the washing tub for transmitting rotation to the rotary blade, and In a washing machine that includes a pulley that is provided below the deceleration transmission means and that transmits the rotation of the motor to the deceleration transmission means, and a rotation speed detection means that includes a coil part and a permanent magnet part, the coil part is connected to an iron core and the iron core. An arm supporting this coil is provided on the outer case of the deceleration transmission means, and the arm is formed of a steel plate and a coating layer is provided on the arm. The coil part is attached to the arm so that the iron core of the coil part comes into contact with the arm through the coil part, a permanent magnet placed opposite to the coil part is housed in the housing, at least one pair of support legs is provided on the outside of the housing, and the support leg is provided with at least one pair of support legs. is provided with an insertion guide part and a fitting claw, the fitting claw is provided on the tip side, and the supporting foot of the housing is inserted into the oval hole formed in the pulley, so that the insertion guide part touches the inner surface of the hole. A rotation speed detection device for a washing machine is characterized in that the fitting claw is brought into contact with the edge of the hole and the fitting claw is engaged with the edge of the hole.
この構成によれば、次のような良さがある。 This configuration has the following advantages.
(1) コイル部のマグネツトワイヤーは合成樹脂の
被覆層でモールドされているので、水滴や湿気
で電気的な特性が変化することがなく、回転検
知の精度が低下することはない。(1) Since the magnet wire in the coil section is molded with a synthetic resin coating layer, the electrical characteristics will not change due to water droplets or moisture, and the accuracy of rotation detection will not deteriorate.
(2) コイル部の鉄心が被覆層を介して鋼板のアー
ムに当接しているので、コイル部に大きな起電
力が発生するので回転検知の精度が向上する。(2) Since the iron core of the coil part is in contact with the steel plate arm through the coating layer, a large electromotive force is generated in the coil part, improving the accuracy of rotation detection.
(3) 永久磁石をプーリと取り付けるハウジング
は、挿入ガイド部および嵌合爪を有する支持足
を備え、この支持足をだ円形の孔に嵌め込んで
プーリに支持させるものであるので、コンパク
トで簡単な構造である。取り付けも押し込みに
より行なわれるので作業性がよく、しかも支持
足の嵌合爪がだ円形の孔の縁部に係合して確実
な支持が得られるのである。(3) The housing for attaching the permanent magnet to the pulley is compact and simple, as it is equipped with an insertion guide and a support leg with a fitting claw, and the support leg is fitted into an oval hole to be supported by the pulley. It has a unique structure. Since the installation is also done by pushing, the workability is good, and the fitting claws of the support legs engage with the edges of the oval holes to provide reliable support.
第１図は本発明を洗濯機に取付けた時の概略
図、第２図は本発明の実施例の主要部断面、第３
図は本発明の実施例の平面図、第４図は本発明の
実施例の長径方向の断面図、第５図は鉄心の径と
起電力の関係を示す図、第６図は出力電圧の波形
を示す図。
１……減速伝達手段、２……プーリー、３……
コイル部、４……鋼板のアーム、５……永久磁
石、６……外枠ケース、７……マグネツトワイヤ
ー、８……鉄心、９……引出線、１０……口出
部、１１……エポキシ樹脂の被覆層、１２……絶
縁用チユーブ、１３……ハウジング、１４……内
周面、１５……円周リブ、１６……挿入ガイド、
１７……嵌合爪、１８……だ円孔、１９……回転
翼、２０……洗濯槽。
Fig. 1 is a schematic diagram of the present invention installed in a washing machine, Fig. 2 is a cross section of the main part of an embodiment of the present invention, and Fig. 3 is a schematic diagram of the present invention installed in a washing machine.
Figure 4 is a plan view of an embodiment of the present invention, Figure 4 is a sectional view in the major axis direction of the embodiment of the present invention, Figure 5 is a diagram showing the relationship between the core diameter and electromotive force, and Figure 6 is a diagram of the output voltage. A diagram showing waveforms. 1...Deceleration transmission means, 2...Pulley, 3...
Coil part, 4... Steel plate arm, 5... Permanent magnet, 6... Outer frame case, 7... Magnet wire, 8... Iron core, 9... Lead wire, 10... Exit part, 11... ... Epoxy resin coating layer, 12 ... Insulating tube, 13 ... Housing, 14 ... Inner peripheral surface, 15 ... Circumferential rib, 16 ... Insertion guide,
17... Fitting claw, 18... Oval hole, 19... Rotating blade, 20... Washing tub.
Claims (1)
れる回転翼と、洗濯槽の外底部に設けられ、回転
翼に回転を伝達する減速伝達手段と、この減速伝
達手段の下方に設けられ、モータの回転を減速伝
達手段に伝達するプーリと、コイル部および永久
磁石部よりなる回転数検出手段とを備えている洗
濯機において、 コイル部は鉄心とこの鉄心に巻装するマグネツ
トワイヤーと外側を被覆する合成樹脂の被覆層と
を有し、 このコイルを支持するアームを減速伝達手段の
外ケースに設け、 アームを鋼板で形成するとともにこのアームに
被覆層を介してコイル部の鉄心が当接するようコ
イル部をアームに取り付け、 コイル部に対向するように置かれる永久磁石を
ハウジングに収納し、ハウジングの外側に少なく
とも一対の支持足を設け、支持足には挿入ガイド
部および嵌合爪を設け、嵌合爪を先端側に設け、 プーリに形成されているだ円形の孔にハウジン
グの支持足を挿入して挿入ガイド部が同孔の内側
面に当接させるとともに嵌合爪を同孔の縁部に係
合させることを特徴とする洗濯機の回転数検出装
置。[Scope of Claims] 1. A washing tub, a rotary blade rotatably provided in the washing tub, a deceleration transmission means provided at the outer bottom of the washing tub for transmitting rotation to the rotary blade, and this deceleration transmission. In a washing machine that is provided with a pulley that is provided below the means and that transmits the rotation of the motor to the deceleration transmission means, and a rotation speed detection means that includes a coil section and a permanent magnet section, the coil section has an iron core and a coil wound around the iron core. The arm supporting the coil is provided in the outer case of the deceleration transmission means, and the arm is formed of a steel plate and the arm is coated with a coating layer. The coil part is attached to the arm so that the iron core of the coil part comes into contact with the coil part, a permanent magnet placed opposite to the coil part is housed in the housing, at least one pair of support legs is provided on the outside of the housing, and the support legs are inserted into the support legs. A guide part and a mating claw are provided, the mating claw is provided on the tip side, and the support leg of the housing is inserted into the oval hole formed in the pulley so that the insertion guide part comes into contact with the inner surface of the hole. A rotation speed detection device for a washing machine, characterized in that a fitting claw is engaged with an edge of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60235251A JPS6297595A (en) | 1985-10-23 | 1985-10-23 | Apparatus for detecting rate of rotation of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60235251A JPS6297595A (en) | 1985-10-23 | 1985-10-23 | Apparatus for detecting rate of rotation of washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6297595A JPS6297595A (en) | 1987-05-07 |
| JPH0410355B2 true JPH0410355B2 (en) | 1992-02-25 |
Family
ID=16983309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60235251A Granted JPS6297595A (en) | 1985-10-23 | 1985-10-23 | Apparatus for detecting rate of rotation of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6297595A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050037692A (en) * | 2003-10-20 | 2005-04-25 | 삼성전자주식회사 | Washing machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144042A (en) * | 1978-04-28 | 1979-11-09 | Toshiba Corp | Rotational speed sensing system for automatic washing machine |
| JPS60132598A (en) * | 1983-12-22 | 1985-07-15 | 松下電器産業株式会社 | Dehydration unbalance detection apparatus |
-
1985
- 1985-10-23 JP JP60235251A patent/JPS6297595A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144042A (en) * | 1978-04-28 | 1979-11-09 | Toshiba Corp | Rotational speed sensing system for automatic washing machine |
| JPS60132598A (en) * | 1983-12-22 | 1985-07-15 | 松下電器産業株式会社 | Dehydration unbalance detection apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6297595A (en) | 1987-05-07 |
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