JPS63220060A - Starting and overload protective device for motor - Google Patents
Starting and overload protective device for motorInfo
- Publication number
- JPS63220060A JPS63220060A JP5336587A JP5336587A JPS63220060A JP S63220060 A JPS63220060 A JP S63220060A JP 5336587 A JP5336587 A JP 5336587A JP 5336587 A JP5336587 A JP 5336587A JP S63220060 A JPS63220060 A JP S63220060A
- Authority
- JP
- Japan
- Prior art keywords
- overload protection
- protection device
- terminal
- starting
- pin
- 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
- 230000001681 protective effect Effects 0.000 title 1
- 238000004804 winding Methods 0.000 claims description 21
- 239000011810 insulating material Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Thermally Actuated Switches (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 産業上の利用分野 本発明はモータの起動及び過負荷保護装置に関する。[Detailed description of the invention] Industrial applications The present invention relates to motor starting and overload protection devices.
従来の技術
モータの起動及び過負荷保護装置は従来より種線機に用
いられる起動装置及び過負荷保護装置は、近年低コスト
化、取付の作業効率のアップが求められている。このた
め従来起動装置と過負荷保護装置と別々であったものを
一つのパッケージに収納して上記要求に対応しようとす
る試みがなされた。例えば特開昭５８−４７９７６号は
、従来のものを組合せたものであるが形状も大きく、十
分コストが下るものではない。そこで過負荷保護装置を
小形化し、起動装置と一体に組込んだものが提案された
。例えばＵ、Ｓ ＰＡＴ、ＲＥ ３−１３６７号を第５
図に示す。１は起動装置、２は過負荷保護装置である。BACKGROUND ART Motor starting and overload protection devices have been conventionally used in seed line machines, and in recent years there has been a demand for lower costs and increased installation work efficiency. For this reason, attempts have been made to accommodate the starter device and overload protection device, which were conventionally separate devices, in one package to meet the above requirements. For example, Japanese Patent Application Laid-Open No. 58-47976 is a combination of conventional devices, but its shape is large and the cost is not sufficiently reduced. Therefore, it was proposed that the overload protection device be miniaturized and integrated with the starting device. For example, U, S PAT, RE 3-1367 No. 5
As shown in the figure. 1 is a starting device, and 2 is an overload protection device.
起動装置１はよく知られているＰＴＣ特性を持つセラミ
ック素子によって構成されており、３のピン受ターミナ
ルは、圧縮機の主巻線と接続され４のピン受ターミナル
は、補助巻線と接続される◇また過負荷保護装置２は、
起動装置１の上に設置され、５のピン受ターミナルは、
主巻線と補助巻線の共通接続部と接続される。過負荷保
護装置はバイメタル板のスナップアクシｇノにて作動す
る。The starter device 1 is composed of a ceramic element with well-known PTC characteristics, and the pin receiving terminal 3 is connected to the main winding of the compressor, and the pin receiving terminal 4 is connected to the auxiliary winding. ◇Also, the overload protection device 2
Installed on the starting device 1, the pin receiving terminal 5 is
Connected to the common connection of the main winding and auxiliary winding. The overload protection device is activated by a snap axle on a bimetallic plate.
本装置は第６図に示すように分相起動方式によるもので
ある。図中Ｃは共通端子Ｍは主巻線、Ｓは補助巻線を示
す。６は過負荷保護装置を示し７はＰＴＣセラミック素
子、ＣＲはランニング用コンデンサである。This device uses a split-phase startup method as shown in FIG. In the figure, C indicates the common terminal M indicates the main winding, and S indicates the auxiliary winding. 6 is an overload protection device, 7 is a PTC ceramic element, and CR is a running capacitor.
発明が解決しようとする問題点
上記例において、圧縮機の起動・過負荷保護装置は一体
化、小形化され、低コスト及び取付作業性の向上が図れ
るが、過負荷保護装置の位置が、圧縮機の外郭から離れ
ており、圧縮機外郭の温度追従性が悪くなる問題点があ
った。これは、別々の起動装置と過負荷保護装置を単に
組合せたため生ずる問題である。本発明は上記問題点を
解決し、小形化、低コスト及び取付作業性が良い圧縮機
の一体形起動・過負荷保護装置を提供し、特に、過負荷
保護装置の圧縮機外郭温度追従性を向上させる様に、一
体型起動・過負荷保護装置に適する構造のものを提供す
ることにある。Problems to be Solved by the Invention In the above example, the compressor startup/overload protection device is integrated and miniaturized, reducing costs and improving installation workability. However, the location of the overload protection device is Since it is far from the outer shell of the compressor, there was a problem in that the temperature followability of the compressor outer shell was poor. This is a problem caused by simply combining separate starting devices and overload protection devices. The present invention solves the above problems and provides an integrated starting/overload protection device for a compressor that is compact, low cost, and easy to install. The object of the present invention is to provide a structure suitable for an integrated starting/overload protection device.
問題点を解決するための手段 上記問題点を解決するため、本発明においては。Means to solve problems In order to solve the above problems, in the present invention.
圧縮機外郭に一体ケースに組込まれた起動装置と過負荷
保護装置よりなり、圧縮機の主巻線、補助巻線の共通接
続部と接続されるピン受ターミナルと、モータ外郭温度
を感知するサーモスタット素子を固定接点部と接続され
たピン受端子と保持端子と接続された補助ヒータにより
サンドイッチするように配置し圧縮機外郭の近傍に設置
した構成を有するものである。 ′
作 用
このため、サーモスタット素子は、ピン受ターミナルと
同じ程度の圧縮機外郭近傍に位置することになり圧縮機
外郭の温度変化を敏感に感知することが出来る。It consists of a starting device and an overload protection device integrated into the compressor outer case, a pin receiving terminal connected to the common connection of the compressor's main winding and auxiliary winding, and a thermostat that senses the motor outer case temperature. The element is sandwiched between a pin receiving terminal connected to a fixed contact portion and an auxiliary heater connected to a holding terminal, and is installed near the outer shell of the compressor. For this reason, the thermostat element is located near the compressor outer shell to the same extent as the pin receiving terminal, and can sensitively sense temperature changes in the compressor outer shell.
実施例 本発明の一実施例を第１〜４図を用いて説明する。Example An embodiment of the present invention will be described using FIGS. 1 to 4.
本実施例の起動方式は第６図の分相起動方式となってい
るが、他の方式においても同等の効果を有する◎２１は
略角状のケースであり起動装置部２２には半円柱状のふ
くらみ２２ａがあり起動装置２２及び過負荷保護装置２
３を区切る壁２４がある。また起動装置部２２に２ケ所
、過負荷保護装置２３に１ケ所角孔（２ｓａ、２ｓｂ、
２ｓａ）がおいており、これはカバー２６の突出部２７
とかん合する。該カバー２６は、平板状で圧縮機（図示
せず）と電気的に接続しているピンターミナル（図示せ
ず）を通す円孔２８が３ケおいているＯ
起動装置部２２は、圧縮機（図示せず）の主巻線と接続
しているピンターミナル（図示せず）と接続する略だ円
状に形成されたピン受ターミナル２９と補助巻線と接続
されるピンターミナル（図示せず）と接続されるピン受
ターミナル３０がある。The starting method of this embodiment is the split-phase starting method shown in FIG. 6, but other methods have the same effect. ◎ 21 is a substantially square case, and the starting device part 22 has a semi-cylindrical shape. There is a bulge 22a for starting device 22 and overload protection device 2.
There is a wall 24 that separates 3. In addition, there are two square holes in the starting device section 22 and one square hole in the overload protection device 23 (2sa, 2sb,
2sa) is placed on the protrusion 27 of the cover 26.
interlock with The cover 26 has a flat plate shape and has three circular holes 28 through which pin terminals (not shown) are electrically connected to the compressor (not shown). A pin receiving terminal 29 formed in an approximately oval shape connects to a pin terminal (not shown) connected to the main winding (not shown), and a pin terminal (not shown) connected to the auxiliary winding. ) There is a pin receiving terminal 30 connected to the terminal.
ピン受ターミナル２９．３０はケース２１のガイドによ
り位置決めされ、ピンターミナル（図示せず）とかん合
する位置に配置され為０ピン受はターミナル２９．３０
にはそれぞれ、熱伝導性の悪いバネ材にて作られた１対
のハ字状の弾性脚を持ったデンキコク板３１と接続され
る。またピン受ターミナル２９．３０は端子部分を持っ
たターミナル３２をそれぞれ接続される。ＰＴＣ特性を
持ったセラミック３３（以下セラミックと称す）は前記
２つのデンキ式り板３１の弾性脚にて把持されており、
ケース２１０半円柱状の突起２１ａの中に収納される。The pin receiver terminals 29.30 are positioned by the guides of the case 21 and are placed in positions where they mate with the pin terminals (not shown).
are each connected to a solid plate 31 having a pair of V-shaped elastic legs made of a spring material with poor thermal conductivity. Further, terminals 32 each having a terminal portion are connected to the pin receiving terminals 29 and 30, respectively. A ceramic 33 having PTC characteristics (hereinafter referred to as ceramic) is held by the elastic legs of the two metal plates 31,
The case 210 is housed in a semi-cylindrical projection 21a.
セラミック３３は円板状であシ、表面には銀メッキが施
される。ケース２１とセラミック３３が直接接触しない
様に、マイカ等で作られた半円状のスペーサ３４がある
０またカバー２６にてセラミック３３を押えるようにマ
イカ等で作られた線状のスペーサ３６が設け−られてい
る。The ceramic 33 is disk-shaped, and its surface is plated with silver. To prevent direct contact between the case 21 and the ceramic 33, there is a semicircular spacer 34 made of mica or the like.Also, a linear spacer 36 made of mica or the like is provided to press the ceramic 33 on the cover 26. It is provided.
過負荷保護装置部２３は絶縁性樹脂にて作られた両端に
突出部３６ａ 、ｂを持った凹状のペース３６の両端突
出部３６ａ、ｂの厚さ方向のはソ中央付近の対向する位
置に固着された固定接点３７と保持端子３８がある。固
着方法は接着又はインサート成形等が考えられる。The overload protection device section 23 has a concave pace 36 made of insulating resin and has projections 36a and 36b at both ends. There are fixed contacts 37 and holding terminals 38 that are fixed. Possible fixing methods include adhesion and insert molding.
ここで固定接点３７はペース３６との固着部分３７ａと
、該固着部分３７ａと平行で片面に銀クラツド接点を持
ち、かつ、固着部分３７ａとの連結部分にスリットを持
った接点部分３７ｂと、前記固着部分３７ｂと垂直に折
り曲げられたピン受ターミナル部３７ｃを持っている０
更に保持端子３８は、第１の突出部３８ａと、Ｌ字状に
前記固定接点３７のピン受ターミナル部３７ｃとは反対
側に折り曲げられた第２の突出部３８ｂを持っている０
第１の突出部３８ａには、角状で先端には前記固定接点
３７の接点部分３７ｂと接離する接点３９を持った。設
定された温度にてスナップアクシコンにより、接点３９
を開閉するバイメタル又はトリメタルに、て成形加工さ
れたサーモスタット素子４ｏが溶接されている。Here, the fixed contact 37 includes a fixed portion 37a that is connected to the pace 36, a contact portion 37b that is parallel to the fixed portion 37a and has a silver clad contact on one side, and has a slit at the connecting portion with the fixed portion 37a, and Furthermore, the holding terminal 38 has a pin receiving terminal portion 37c bent perpendicularly to the fixed portion 37b, and the holding terminal 38 has a first protruding portion 38a and an L-shaped portion opposite to the pin receiving terminal portion 37c of the fixed contact 37. 0 having a second protrusion 38b bent to the side.
The first protrusion 38a has an angular shape and has a contact 39 at its tip that comes into contact with and separates from the contact portion 37b of the fixed contact 37. Contact 39 is closed by the snap axicon at the set temperature.
A molded thermostat element 4o is welded to the bimetal or trimetal that opens and closes.
前記固定接点３７のピン受ターミナル部３７ｃには、主
巻線と補助巻線の共通接続部と接続したビンターミナル
（図示せず）と接続する略だ円状のビン受部４１ａを持
ったピン受ターミナル４１が溶接される。The pin receiving terminal portion 37c of the fixed contact 37 has a pin having a substantially elliptical pin receiving portion 41a that connects to a pin terminal (not shown) connected to a common connection portion between the main winding and the auxiliary winding. The receiving terminal 41 is welded.
まだ保持端子３８の第２の突出部３８ｂにはニクロム線
等にて曲げ加工された補助ヒータ４２が溶接され、更に
該補助ヒータ４２は外部接続用のターミナル４３と接続
する０ターミナル４３はケース２１の角孔よりケース外
へ出る。ここで補助ヒータ４２は必ずしも必要でなく必
要のないときは銅線等の低抵抗線にて保持端子３８とタ
ーミナル４３を接続する。以上のように構成するとサー
モスタット素子３９をサンドイッチするようにピン受タ
ーミナル４１と補助ヒータ４２が配置されることが判る
◎更に、ペース３６に組込まれた過負荷保護装置部２３
は、ケース２１に脱着自在に取付けられ、取付後カバー
２６にて密封される。An auxiliary heater 42 made of Nichrome wire or the like is still welded to the second protrusion 38b of the holding terminal 38, and the auxiliary heater 42 is connected to a terminal 43 for external connection. It comes out of the case through the square hole. Here, the auxiliary heater 42 is not necessarily required, and when it is not necessary, the holding terminal 38 and the terminal 43 are connected with a low resistance wire such as a copper wire. With the above configuration, it can be seen that the pin receiving terminal 41 and the auxiliary heater 42 are arranged so as to sandwich the thermostat element 39. Furthermore, the overload protection device section 23 incorporated in the pace 36
is detachably attached to the case 21, and sealed with a cover 26 after attachment.
ここで動作について説明する。The operation will now be explained.
圧縮機（図示せず）の起動時セラミック３３は冷えてい
るため抵抗が低く圧縮機（図示せず）には主巻線及び補
助巻線に電流が流れ、充分な起動トルクを与える。圧縮
機（図示せず）が起動するとセラミック３３は自己発熱
のため急激に抵抗が高くなり補助巻線への電流を十分小
さくする。When the compressor (not shown) is started, the ceramic 33 is cold and has low resistance, and current flows through the main winding and auxiliary winding of the compressor (not shown), providing sufficient starting torque. When the compressor (not shown) starts, the resistance of the ceramic 33 suddenly increases due to self-heating, thereby sufficiently reducing the current flowing to the auxiliary winding.
ここで過負荷保護装置２３には通常時には、サーモスタ
ット素子３９は閉状態であるがモータのロック時、過負
荷時には、過負荷保護装置に流れる電流を検知し、かつ
、圧縮機（図示せず）の外郭温度を検知して回路を開放
する。またサーモスタット素子３９はある設定温度にな
るように加工されるが、更に温度の微調整の手段として
固定接点３７の接点部分３７ｂの位置を可変することに
より、温調可能な構成である。In the overload protection device 23, the thermostat element 39 is normally closed, but when the motor is locked or overloaded, the overload protection device 23 detects the current flowing through the overload protection device and connects the compressor (not shown). Detects the outer shell temperature and opens the circuit. Further, the thermostat element 39 is processed to have a certain set temperature, but the temperature can be further adjusted by changing the position of the contact portion 37b of the fixed contact 37 as a means for finely adjusting the temperature.
以上述べた如く一体のケース２１に起動装置２２と過負
荷保護装置２３を組込んだことにより、小形で低コスト
のモータの起動・過負荷保護装置を提供することが出来
ると共に、圧縮機への取付も簡易に行なえる。更に過負
荷保護装置２３は、サーモスタット素子３９をサンドイ
ッチする様にピン受ターミナル４１と補助ヒータ４２が
圧縮機外郭に平行にかつ外郭近傍に配置されるため、巻
線温度の変化すなわち圧縮機外郭の温度変化に敏感に追
従することが出来る。As described above, by incorporating the starting device 22 and the overload protection device 23 into the integrated case 21, it is possible to provide a small and low-cost motor starting/overload protection device, and also to provide a small and low-cost motor starting/overload protection device. Installation is also easy. Furthermore, the overload protection device 23 is configured such that the pin receiving terminal 41 and the auxiliary heater 42 are arranged parallel to and near the outer shell of the compressor so as to sandwich the thermostat element 39. It can sensitively follow temperature changes.
発明の効果
以上述べた如く、本発明は、モータの起動・過負荷保護
装置を一体のケースに収納しモータ外郭にモータ巻線と
接続された３本のビンターミナルと接続されるものであ
り、更に過負荷保護装置はモータの主巻線と補助巻線の
共通接続部と接続されるピン受ターミナルと該ピン受タ
ーミナルと電気的に接続された固定接点部と該固定接点
部と対向する位置にあり、かつ設定された温度にて接点
を開閉するサーモスタット素子を保持する保持板と該保
持板と電気的に接続された補助ヒータと、前記補助ヒー
タと接続され外部と接続されるターミナルから成り、前
記ピン受はターミナルと補助ヒータはサーモスタット素
子をサンドインチするように配置され、かつモータ外郭
面に対して平行に配置される構成であるため、
（１）モータの起動・過負荷保護装置が小形化され、一
体化されたケースに収納されているため低コストでモー
タへの取付性が向上、
（２）過負荷保護装置のサーモスタット素子はピン受タ
ーミナルと補助ヒータによりサンドインチされかつモー
タ外郭面に対して平行にかつ外郭近傍に配置されるため
モータ外郭の温度変化に敏感に追従して、モータの焼損
を防止する。Effects of the Invention As described above, the present invention includes a motor starting/overload protection device housed in an integrated case and connected to three bin terminals connected to the motor windings on the outer shell of the motor. Furthermore, the overload protection device includes a pin receiving terminal connected to a common connection between the main winding and the auxiliary winding of the motor, a fixed contact portion electrically connected to the pin receiving terminal, and a position facing the fixed contact portion. It consists of a holding plate that holds a thermostat element that opens and closes the contacts at a set temperature, an auxiliary heater that is electrically connected to the holding plate, and a terminal that is connected to the auxiliary heater and connected to the outside. , Since the pin receiver is configured such that the terminal and the auxiliary heater are arranged so as to sandwich the thermostat element, and are arranged parallel to the outer surface of the motor, (1) the motor starting/overload protection device is Because it is compact and housed in an integrated case, it is easy to attach to the motor at low cost. Since it is arranged parallel to the surface and near the outer shell, it sensitively follows temperature changes in the motor outer shell, thereby preventing motor burnout.
以上の如く、本発明は実用上非常に有用である。As described above, the present invention is extremely useful in practice.
第１図は本発明の一実施例における起動・過負荷保護装
置の分解斜視図、第２図は第１図のカバーを外した正面
図、第３図は本発明の一実施例における中央断面図、第
４図は第１図における過負荷保護装置の分解斜視図、第
５図は従来例における起動・過負荷保護装置の斜視図、
第６図は分相起動方式における電気゛回路図である。
−２１・・・・・・ケース、２２・・・・・・起動装置
、２３・・・・・・過負荷保護装置、３６・・・・・・
ベース、３７・・・・・・固定接点部、３８・・・・・
・保持端子、３９・・・・・・接点、４０・・・・・・
サーモスタット素子、４１・・・・・・ピン受ターミナ
ル、４２・・・・・・補助ヒータ、４３・・・・・・タ
ーミナル。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名２１
−ケース
ｎ−起動茨夏
２３−！＊荷保１状置
３６−ペース
３８−保傅膓子
々−禰助ヒーク
ＩＯ−ターミナル
％−ベース
ｒ−固定！＃克都
３８−保舒購予
３９−接 丸
荀−ナーモスタシト素子
４１−−ビン受ターミナルFig. 1 is an exploded perspective view of a starting/overload protection device according to an embodiment of the present invention, Fig. 2 is a front view with the cover of Fig. 1 removed, and Fig. 3 is a central cross-sectional view of an embodiment of the present invention. 4 is an exploded perspective view of the overload protection device in FIG. 1, and FIG. 5 is a perspective view of the starting/overload protection device in the conventional example.
FIG. 6 is an electrical circuit diagram in the split-phase starting method. -21... Case, 22... Starting device, 23... Overload protection device, 36...
Base, 37...Fixed contact part, 38...
・Holding terminal, 39...Contact, 40...
Thermostat element, 41...Pin receiver terminal, 42...Auxiliary heater, 43...Terminal. Name of agent: Patent attorney Toshio Nakao and 1 other person21
-Case n-Start Ibaraka 23-! *Cargo Holder 1 Status 36-Pace 38-Hofu Fukozu-Nesuke Heek IO-Terminal %-Base r-Fixed! #Katsu 38-Hoshu purchase order 39-Connection round connection-Namostasito element 41--Bin receiving terminal
Claims (1)
助巻線に接続する第２のピンターミナルと、主巻線と補
助巻線との間の共通接続部と接続する第３のピンターミ
ナルを有し、前記第１及び第２のピンターミナルはモー
タの起動装置と接続され、第３のピンターミナルは過負
荷保護装置と接続するものであって、前記モータの起動
装置と過負荷保護装置は一体のケース同一平面上に収納
され、かつ起動装置と過負荷保護装置はケース内の壁に
より分離されており、過負荷保護装置は両端に突出部を
持った凹状の絶縁材料で形成されたベースと、該ベース
の中央付近に対向するように固着された固定接点部と、
保持端子を有し、保持端子は、固定接点部と接離する位
置に接点を持ったサーモスタット素子を固着しており、
該サーモスタット素子をサンドイッチする様に固定接点
部と接続されたピン受け端子と、保持端子と接続された
補助ヒータが位置していることを特徴とするモータの起
動・過負荷保護装置。A first pin terminal that connects to the main winding of the motor, a second pin terminal that connects to the auxiliary winding, and a third pin terminal that connects to the common connection between the main and auxiliary windings. wherein the first and second pin terminals are connected to a motor starting device, and the third pin terminal is connected to an overload protection device, the motor starting device and the overload protection device being connected to each other. is housed in an integrated case on the same plane, and the starting device and overload protection device are separated by a wall inside the case, and the overload protection device is formed of a concave insulating material with protrusions at both ends. a base; a fixed contact portion fixed to face the base near the center;
It has a holding terminal, and the holding terminal fixes a thermostat element having a contact at a position where it comes into contact with and separates from the fixed contact part,
A motor starting/overload protection device characterized in that a pin receiving terminal connected to a fixed contact portion and an auxiliary heater connected to a holding terminal are positioned so as to sandwich the thermostat element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5336587A JPS63220060A (en) | 1987-03-09 | 1987-03-09 | Starting and overload protective device for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5336587A JPS63220060A (en) | 1987-03-09 | 1987-03-09 | Starting and overload protective device for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63220060A true JPS63220060A (en) | 1988-09-13 |
Family
ID=12940782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5336587A Pending JPS63220060A (en) | 1987-03-09 | 1987-03-09 | Starting and overload protective device for motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63220060A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2802991A1 (en) | 1999-12-24 | 2001-06-29 | Ntn Toyo Bearing Co Ltd | Bearing with resin-coated rings to give resistance to electrical corrosion |
| JP2013243190A (en) * | 2012-05-18 | 2013-12-05 | Murata Mfg Co Ltd | Thermistor device |
-
1987
- 1987-03-09 JP JP5336587A patent/JPS63220060A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2802991A1 (en) | 1999-12-24 | 2001-06-29 | Ntn Toyo Bearing Co Ltd | Bearing with resin-coated rings to give resistance to electrical corrosion |
| JP2013243190A (en) * | 2012-05-18 | 2013-12-05 | Murata Mfg Co Ltd | Thermistor device |
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