JP6518946B2 - Electric blower and electric vacuum cleaner using it - Google Patents

Electric blower and electric vacuum cleaner using it Download PDF

Info

Publication number
JP6518946B2
JP6518946B2 JP2016012585A JP2016012585A JP6518946B2 JP 6518946 B2 JP6518946 B2 JP 6518946B2 JP 2016012585 A JP2016012585 A JP 2016012585A JP 2016012585 A JP2016012585 A JP 2016012585A JP 6518946 B2 JP6518946 B2 JP 6518946B2
Authority
JP
Japan
Prior art keywords
terminal
power supply
electric blower
supply terminal
field winding
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 - Fee Related
Application number
JP2016012585A
Other languages
Japanese (ja)
Other versions
JP2017135805A (en
Inventor
徳田　剛
剛 徳田
西村　剛
剛 西村
哲平 秀熊
哲平 秀熊
樽谷　隆夫
隆夫 樽谷
笹尾　雅規
雅規 笹尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Priority to JP2016012585A priority Critical patent/JP6518946B2/en
Publication of JP2017135805A publication Critical patent/JP2017135805A/en
Application granted granted Critical
Publication of JP6518946B2 publication Critical patent/JP6518946B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Electric Suction Cleaners (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)

Description

本発明は、電気掃除機等に使用される電動送風機および電気掃除機に関するものである。   BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an electric blower and an electric vacuum cleaner used for an electric vacuum cleaner and the like.

従来の電気掃除機などに使用される電動送風機として図７、図８に示されるようなものがあった（例えば、特許文献１、２参照）。図７は、上記従来の電動送風機の構成、及び空気の流れを示す半断面図、図８は、同電動送風機の電源端子部の拡大図である。   As an electric blower used for the conventional vacuum cleaner etc., there exist some as shown by FIG. 7, FIG. 8 (for example, refer patent document 1, 2). FIG. 7 is a half sectional view showing the structure of the conventional electric fan and the flow of air, and FIG. 8 is an enlarged view of a power supply terminal portion of the electric fan.

図７において、従来の電動送風機１は、電動機２と、電動機２の出力軸３の一端に固定された回転ファン４と、回転ファン４の外周に位置し回転ファン４より吐き出された気流を整流する複数の案内翼５を有するディフューザ６と、回転ファン４とディフューザ６とを覆い中央に吸気口７を有するファンケース８によって構成されている。   In FIG. 7, the conventional electric blower 1 includes an electric motor 2, a rotating fan 4 fixed to one end of an output shaft 3 of the electric motor 2, and an outer periphery of the rotating fan 4. It comprises a diffuser 6 having a plurality of guide vanes 5 and a fan case 8 covering the rotary fan 4 and the diffuser 6 and having an inlet 7 at the center.

電動機２は、界磁ユニット９と電機子ユニット１０とカーボンブラシ（図示せず）と、それらを内蔵するブラケットＡ１１とブラケットＢ１２とから構成されている。
前記界磁ユニット９は、電磁鋼板を積層して成る界磁鉄心１３と、界磁巻線１４と、それらの絶縁性を確保するための樹脂製の界磁巻枠１５とから成り、界磁巻線１４の一端はカーボンブラシ（図示せず）に電気的に接続され、もう一端は電源端子１６に接続されている。 The motor 2 is composed of a field unit 9, an armature unit 10, a carbon brush (not shown), and a bracket A11 and a bracket B12 which incorporate them.
The field unit 9 comprises a field core 13 formed by laminating electromagnetic steel sheets, a field winding 14, and a resin field winding 15 for securing the insulation properties of the field winding. One end of the winding 14 is electrically connected to a carbon brush (not shown), and the other end is connected to the power supply terminal 16.

また、図８に示すように前記電源端子１６は、界磁巻枠１５に設けられた端子台１７に圧入固定した後、略直角に折り曲げられているため屈曲部１８が形成されていた。
次に、電機子ユニット１０は、出力軸３に圧入固定された電磁鋼板を積層して成る電機子鉄心１９に電機子巻線２０が施され、前記電機子巻線２０は出力軸３に圧入固定された整流子２１に電気的に接続されている。 Further, as shown in FIG. 8, the power supply terminal 16 is press-fixed to the terminal block 17 provided on the field winding frame 15 and then bent at a substantially right angle so that a bent portion 18 is formed.
Next, in the armature unit 10, an armature winding 20 is applied to an armature core 19 formed by laminating electromagnetic steel plates press-fitted and fixed to the output shaft 3, and the armature winding 20 is press-fitted to the output shaft 3. It is electrically connected to the fixed commutator 21.

界磁ユニット９は、電源端子１６が負荷側（回転ファン４側）に位置するようにブラケットＢ１２内に圧入固定され、電機子ユニット１０は、出力軸３に圧入された軸受２２を介して回転自在となるよう、ブラケットＡ１１とブラケットＢ１２とで保持されている。また、ブラケットＢ１２の反負荷側には、吸込み気流を排出するために排気口２３が設けられ、負荷側の電源端子１６近傍にはブラケットＢ１２との絶縁距離を確保するようにした開口部２４が設けられている。   The field unit 9 is press-fitted and fixed in the bracket B 12 so that the power supply terminal 16 is located on the load side (the rotary fan 4 side), and the armature unit 10 is rotated via the bearing 22 press-fitted to the output shaft 3. It is held by the bracket A11 and the bracket B12 so as to be free. In addition, an exhaust port 23 is provided on the non-load side of the bracket B12 to discharge the suction air flow, and an opening 24 is provided in the vicinity of the power terminal 16 on the load side to secure an insulation distance from the bracket B12. It is provided.

上記従来の電動送風機の構成において、電動送風機１が運転されると、電動機２は電源端子１６から電力が供給され、界磁巻線１４で生成される主磁束と、電機子巻線２０に流れる電流との電磁作用により、電機子巻線２０にトルクが発生して電機子ユニット１０が回転する。   In the configuration of the conventional electric blower described above, when the electric blower 1 is operated, the electric power is supplied from the power supply terminal 16 to the electric motor 2 and flows to the armature winding 20 and the main magnetic flux generated by the field winding 14. By the electromagnetic action with the current, a torque is generated in the armature winding 20 and the armature unit 10 is rotated.

通常、電気掃除機用の電動送風機１は、約４０、０００ｒ／ｍｉｎから４５、０００ｒ／ｍｉｎの高速で回転する。この電機子ユニット１０の回転動作により、出力軸３に固定された回転ファン４が高速で回転することで空気が吸気口７から吸い込まれ気流が発生する。   Usually, the electric blower 1 for a vacuum cleaner rotates at a high speed of about 40, 000 r / min to 45, 000 r / min. Due to the rotational operation of the armature unit 10, the rotational fan 4 fixed to the output shaft 3 rotates at high speed, so that air is sucked from the intake port 7 and an air flow is generated.

吸引された気流は、図７の矢印で示すようにファンケース８の吸気口７より、回転ファン４内部を通過した後にその外周から排出され、ディフューザ６を経由して電動機２内に導かれ、電動機２に内蔵された界磁巻線１４、電機子巻線２０、カーボンブラシ（図示せ
ず）、軸受２２等を冷却した後、排気口２３から電動送風機１外部へと排出されるが、吸引された一部の気流は、電源端子１６近傍に設けた開口部２４から電動送風機１外部へ排出される。 The drawn air flow passes through the inside of the rotary fan 4 from the air intake port 7 of the fan case 8 as shown by the arrow in FIG. 7 and is discharged from the outer periphery thereof and is guided into the motor 2 via the diffuser 6 After cooling the field winding 14, the armature winding 20, the carbon brush (not shown), the bearing 22 and the like built in the motor 2, the air is discharged from the exhaust port 23 to the outside of the electric blower 1 A part of the air flow is discharged to the outside of the electric blower 1 from an opening 24 provided in the vicinity of the power supply terminal 16.

特開２００９−２６１０５７号公報JP, 2009-261057, A 特開２０１１−１１５０２６号公報JP, 2011-115026, A

しかしながら、上記従来の電動送風機の技術では、ブラケットＢ１２は一般的に導電性のある鉄やアルミなどの金属材料で構成されることが多く、電源端子１６とブラケットＢ１２との絶縁距離を確保するため、ブラケットＢ１２に設けた開口部２４の開口面積を大きくする必要があった。   However, in the above-described conventional electric blower technology, the bracket B12 is generally made of a conductive metal material such as iron or aluminum in many cases, and in order to secure the insulation distance between the power supply terminal 16 and the bracket B12. The opening area of the opening 24 provided in the bracket B12 needs to be increased.

従って、吸込まれた気流の開口部２４から排出される空気量が増加するため、ブラケットＢ１２内に導かれる空気量が減少することになり、その結果ブラケットＢ１２に内蔵された界磁巻線１４、電機子巻線２０、カーボンブラシ、軸受２２などの冷却効果の低下を招いていた。   Therefore, the amount of air discharged from the opening 24 of the sucked air flow is increased, so the amount of air guided into the bracket B12 is reduced, and as a result, the field winding 14 built in the bracket B12, The cooling effect of the armature winding 20, the carbon brush, the bearing 22 and the like is reduced.

その結果、前述の各部の温度が高くなり、カーボンブラシの早期摩耗、整流子２１の真円度の悪化、軸受２２のグリス劣化による早期破壊等の異常が発生する危険性を高めるという課題があった。   As a result, there is a problem that the temperature of each of the above-mentioned parts becomes high, and the risk of occurrence of abnormalities such as early wear of carbon brush, deterioration of roundness of commutator 21 and early breakage due to grease deterioration of bearing 22 occurs. The

本発明は、前記従来の課題を解決するもので、電動送風機の温度上昇を低減すると共に、電源端子の屈曲部での破断を防止し、信頼性の高い電動送風機および電気掃除機を実現することを目的とする。   The present invention solves the above-mentioned conventional problems, and reduces the temperature rise of the electric blower and prevents breakage at the bent portion of the power supply terminal to realize a highly reliable electric blower and an electric vacuum cleaner. With the goal.

前記従来の課題を解決するために、本発明の電動送風機は、界磁鉄心及び前記界磁鉄心の両端面に装着した界磁巻枠に巻回された界磁巻線、及び前記界磁巻枠に前記界磁巻線の端部を電気的に接続した電源端子を圧入固定する端子台を設けた界磁ユニットと、出力軸に圧入固定された電機子鉄心に巻回された電機子巻線、及び前記出力軸に圧入固定された
整流子と軸受から構成された電機子ユニットと、前記界磁ユニットと前記電機子ユニットを収納するブラケットと、前記出力軸に固定された回転ファンと、前記回転ファンの外周方向に位置し複数の固定翼を備えたディフューザとから構成される電動送風機において、絶縁材料から成る端子保護カバーを前記電源端子近傍に設けた開口部を塞ぐように固定し、前記端子保護カバーに設けたスリット部に前記電源端子が挿入できるようにし、前記スリット部の幅を前記電源端子の厚みと略同一にし、前記電源端子に本体の端子が挿入される際、前記本体の端子が前記電源端子および前記スリット部に当接されたもので、端子保護カバーにより開口部から排出される空気が遮断されて、電動機内部の発熱部品を冷却する空気量が増えるので、熱的ダメージを低減することができる。また、端子保護カバーに設けたスリット部に挿入された電源端子に掃除機本体側の端子を接続すると、スリット部と掃除機本体側の端子が当接し、電源端子の屈曲部への応力を低減してその屈曲部での破断を防止することができる。 In order to solve the above-mentioned conventional problems, an electric blower according to the present invention comprises a field core and a field winding wound around a field winding mounted on both end surfaces of the field core, and the field winding. A field unit provided with a terminal block for press-fitting and fixing a power supply terminal having the end of the field winding electrically connected to a frame, and an armature winding wound around an armature core press-fitted and fixed to an output shaft An armature unit comprising a wire and a commutator and a bearing press-fitted to the output shaft, a bracket for housing the field unit and the armature unit, and a rotating fan fixed to the output shaft; A terminal protection cover made of an insulating material is fixed so as to close an opening provided in the vicinity of the power supply terminal, in the electric blower constituted of a diffuser which is located in the outer peripheral direction of the rotary fan and has a plurality of fixed wings. Provided on the terminal protection cover Said power supply terminal is to be inserted in slit portion, the width of the slit portion substantially equal to the thickness of the power supply terminal, when the terminal body is inserted into the power source terminal, the terminal of the body is the power source terminal and Since the air discharged from the opening by the terminal protection cover is blocked by the contact with the slit and the amount of air for cooling the heat generating component inside the motor increases, thermal damage can be reduced. . In addition, when the terminal on the cleaner body side is connected to the power supply terminal inserted in the slit provided in the terminal protection cover, the slit unit and the terminal on the cleaner body abut, reducing stress on the bent portion of the power supply terminal It is possible to prevent breakage at the bent portion.

本発明は、電動送風機の冷却効果を高め、かつ電源端子の破断を防止した信頼性の高い電動送風機及び電気掃除機を提供することができる。   The present invention can provide a highly reliable electric blower and an electric vacuum cleaner which enhances the cooling effect of the electric blower and prevents the breakage of the power supply terminal.

本発明の実施の形態１における電動送風機の外観図An external view of an electric blower according to Embodiment 1 of the present invention 同電動送風機の電源端子近傍の拡大図Enlarged view of the vicinity of the power supply terminal of the same electric blower 同電動送風機の他の例を示す電源端子近傍の拡大縦断面図An enlarged longitudinal sectional view in the vicinity of the power supply terminal showing another example of the same electric blower 本発明の実施の形態２における電動送風機の電源端子近傍の拡大縦断面図An enlarged longitudinal sectional view in the vicinity of a power supply terminal of an electric blower according to a second embodiment of the present invention 本発明の実施の形態３における電動送風機の電源端子近傍の拡大横断面図The expanded cross-sectional view of the power supply terminal vicinity of the electric blower in Embodiment 3 of this invention 本発明の実施の形態４における電気掃除機の構成図The block diagram of the vacuum cleaner in Embodiment 4 of this invention 従来の電動送風機の構成、及び空気の流れを示す半断面図A half sectional view showing the configuration of the conventional electric blower and the flow of air 同電動送風機の電源端子部の拡大図Enlarged view of the power supply terminal of the same electric blower

第１の発明は、界磁鉄心及び前記界磁鉄心の両端面に装着した界磁巻枠に巻回された界磁巻線、及び前記界磁巻枠に前記界磁巻線の端部を電気的に接続した電源端子を圧入固定する端子台を設けた界磁ユニットと、出力軸に圧入固定された電機子鉄心に巻回された電機子巻線、及び前記出力軸に圧入固定された整流子と軸受から構成された電機子ユニットと、前記界磁ユニットと前記電機子ユニットを収納するブラケットと、前記出力軸に固定された回転ファンと、前記回転ファンの外周方向に位置し複数の固定翼を備えたディフューザとから構成される電動送風機において、絶縁材料から成る端子保護カバーを前記電源端子近傍に設けた開口部を塞ぐように固定し、前記端子保護カバーに設けたスリット部に前記電源端子が挿入できるようにしたもので、端子保護カバーにより開口部から排出される空気が遮断されて、電動機内部の発熱部品を冷却する空気量が増えるので、熱的ダメージを低減することができる。また、端子保護カバーに設けたスリット部に挿入された電源端子に掃除機本体側の端子を接続すると、スリット部と掃除機本体側の端子が当接し、電源端子の屈曲部への応力を低減してその屈曲部での破断を防止することができる。   According to a first aspect of the present invention, there is provided a field core and a field winding wound around a field winding mounted on both end surfaces of the field core, and an end of the field winding on the field winding. A field unit provided with a terminal block for press fitting and fixing an electrically connected power terminal, an armature winding wound around an armature core press fitted and fixed to an output shaft, and a press fitting and fixed to the output shaft An armature unit formed of a commutator and a bearing, a bracket for storing the field unit and the armature unit, a rotary fan fixed to the output shaft, and a plurality of rotary fans positioned in the outer peripheral direction of the rotary fan In a motor-driven blower comprising a diffuser having a fixed wing, a terminal protection cover made of an insulating material is fixed so as to close an opening provided in the vicinity of the power supply terminal, and the slit is provided in the terminal protection cover Power supply terminal can be inserted In which the, in the air discharged from the opening through a terminal protection cover is cut off, since the amount of air for cooling the heat-generating components inside the electric motor is increased, it is possible to reduce thermal damage. In addition, when the terminal on the cleaner body side is connected to the power supply terminal inserted in the slit provided in the terminal protection cover, the slit unit and the terminal on the cleaner body abut, reducing stress on the bent portion of the power supply terminal It is possible to prevent breakage at the bent portion.

第２の発明は、特に、第１の発明のスリット部の幅を電源端子の厚みと略同一にしたもので、スリット部からの空気の漏れを防止でき、また掃除機本体側の端子の保持もできるので、電源端子の屈曲部の応力を低減し破断も防止できる。   According to a second aspect of the invention, in particular, the width of the slit portion of the first aspect is substantially equal to the thickness of the power supply terminal, so that leakage of air from the slit portion can be prevented, and holding of the terminal on the cleaner body side Also, since the stress at the bent portion of the power supply terminal can be reduced and breakage can be prevented.

第３の発明は、特に、第１又は第２の発明のスリット部の外周部分にリブを設けたもので、掃除機本体側の端子をより確実に保持できるので、更に電源端子の屈曲部の破断を防止できる。   In the third invention, in particular, a rib is provided on the outer peripheral portion of the slit portion of the first or second invention, and since the terminal on the cleaner body side can be held more reliably, Breakage can be prevented.

第４の発明は、特に、第１〜３のいずれか一つの発明の端子保護カバーの外周部に爪部を形成し、前記爪部はブラケットの開口部の縁部と嵌合するようにしたもので、端子保護カバーを開口部に確実に固定できるようになる。   According to a fourth aspect of the invention, in particular, the claw portion is formed on the outer peripheral portion of the terminal protection cover according to any one of the first to third inventions, and the claw portion is fitted to the edge of the opening of the bracket Thus, the terminal protection cover can be securely fixed to the opening.

第５の発明に係る電気掃除機は、請求項１〜４のいずれか１項に記載の電動送風機を用いたもので、信頼性の高い電気掃除機を実現できる。   The vacuum cleaner concerning the 5th invention is what uses the electric blower according to any one of claims 1 to 4, and can realize a highly reliable vacuum cleaner.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiment.

（実施の形態１）
図１は、本発明の実施の形態１における電動送風機の外観図、図２は、同電動送風機の電源端子近傍の拡大図である。なお、上記従来の電動送風機と同一構成部品については同一符号を付して、一部その説明を省略する。 Embodiment 1
FIG. 1 is an external view of an electric blower according to Embodiment 1 of the present invention, and FIG. 2 is an enlarged view of the vicinity of a power supply terminal of the electric blower. The same components as those of the conventional electric blower described above are denoted by the same reference numerals, and the description thereof will be partially omitted.

図１、２において、本実施の形態における電動送風機１において、界磁巻枠１５の端子台１７に固定された電源端子１６近傍のブラケットＢ１２に開口部２４が設けられ、前記開口部２４を塞ぐ端子保護カバー２５が取り付けられている。前記端子保護カバー２５に
は電源端子１６に対向して電源端子１６を通すことのできるスリット部２６が設けられている。また、スリット部２６の幅を電源端子１６の厚みと略同一に設定している。 In FIGS. 1 and 2, in the electric blower 1 according to the present embodiment, an opening 24 is provided in a bracket B12 near the power supply terminal 16 fixed to the terminal block 17 of the field winding frame 15 to close the opening 24. The terminal protection cover 25 is attached. The terminal protection cover 25 is provided with a slit portion 26 facing the power supply terminal 16 and through which the power supply terminal 16 can be passed. Further, the width of the slit portion 26 is set to be substantially the same as the thickness of the power supply terminal 16.

本実施の形態における電動送風機１は以上のように構成されているので、電動送風機１が運転されると、電機子ユニット１０の出力軸３に固定された回転ファン４が高速で回転することにより空気が吸い込まれ気流が発生する。吸引された気流は、ファンケース８の吸気口７より、回転ファン４内部を通過した後にその外周部から排出され、ディフューザ６内を経由して電動機２内に導かれ、電動機２に内蔵された界磁巻線１４、電機子巻線２０、カーボンブラシ（図示せず）、軸受２２等を冷却した後、ブラケットＢ１２の排気口２３から電動送風機１外部へと排出される。   Since electric blower 1 in the present embodiment is configured as described above, rotation fan 4 fixed to output shaft 3 of armature unit 10 is rotated at high speed when electric blower 1 is operated. Air is drawn in and an air flow is generated. The sucked air flow passes through the inside of the rotary fan 4 from the air intake port 7 of the fan case 8 and is discharged from the outer peripheral portion thereof, is guided into the motor 2 via the diffuser 6, and is incorporated in the motor 2. After cooling the field winding 14, the armature winding 20, the carbon brush (not shown), the bearing 22 and the like, the air is discharged from the exhaust port 23 of the bracket B12 to the outside of the electric blower 1.

従来は、吸引された気流の一部は、電源端子１６近傍に設けた開口部２４から電動送風機１外部へ排出されるが、本実施の形態における電動送風機の特徴である端子保護カバー２５がブラケットＢ１２の開口部２４を塞ぐことにより空気の排出を遮断するので、電動機２内に導かれる冷却風が増加し、電動機２内部の界磁ユニット９、電機子ユニット１０、カーボンブラシ（図示せず）などの冷却効果を向上させて熱的ダメージを低減することができる。   Conventionally, a part of the sucked air flow is discharged to the outside of the electric blower 1 from the opening 24 provided in the vicinity of the power supply terminal 16, but the terminal protection cover 25 which is a feature of the electric blower in this embodiment is a bracket Since the discharge of air is shut off by closing the opening 24 of B12, the cooling air introduced into the motor 2 is increased, and the field unit 9, the armature unit 10, the carbon brush (not shown) inside the motor 2 The thermal effect can be reduced by improving the cooling effect such as.

また、スリット部２６の幅を電源端子１６の厚みと略同一にしているので、スリット部２６からの空気の漏れを防止でき、また掃除機本体（図示せず）側の端子２７の保持もできるので、電源端子１６の屈曲部１８の応力を低減し破断も防止できる。   Further, since the width of the slit portion 26 is substantially the same as the thickness of the power supply terminal 16, the air can be prevented from leaking from the slit portion 26, and the terminal 27 on the cleaner body (not shown) side can be held. Therefore, the stress of the bent portion 18 of the power supply terminal 16 can be reduced and breakage can be prevented.

また、図３に示すように、電動機２の電源端子１６に本体の端子２７を挿入する際、端子保護カバー２５に設けたスリット部２６の幅を前記本体の端子２７の厚みと略同一に設定して当接するように構成すれば、掃除機本体の端子２７に接続されたリード線２８の微振動による電源端子１６の屈曲部１８への応力を低減できるため、屈曲部１８の破断を防止することができる。   Further, as shown in FIG. 3, when inserting the terminal 27 of the main body into the power supply terminal 16 of the motor 2, the width of the slit portion 26 provided in the terminal protection cover 25 is set substantially the same as the thickness of the terminal 27 of the main body. Since the stress on the bent portion 18 of the power supply terminal 16 due to the slight vibration of the lead wire 28 connected to the terminal 27 of the vacuum cleaner main body can be reduced if it is configured so as to abut on, the breakage of the bent portion 18 is prevented. be able to.

（実施の形態２）
図４は、本発明の実施の形態２における電動送風機の電源端子近傍の拡大縦断面図である。なお、上記従来の電動送風機および第１の実施の形態における電動送風機と同一構成部品については同一符号を付して、一部その説明を省略する。 Second Embodiment
FIG. 4 is an enlarged vertical cross-sectional view of the vicinity of the power supply terminal of the electric blower according to Embodiment 2 of the present invention. The same components as those of the conventional electric blower and the electric blower in the first embodiment are designated by the same reference numerals, and the description thereof is partially omitted.

本実施の形態における電動送風機は、図４に示すようには、電動機２のブラケットＢ１２に設けた開口部２４を塞ぐ端子保護カバー２５のスリット部２６の外周にリブ２９を設けたものである。   As shown in FIG. 4, the motor-driven blower in the present embodiment is provided with ribs 29 on the outer periphery of the slit portion 26 of the terminal protection cover 25 that closes the opening 24 provided in the bracket B12 of the motor 2.

本実施の形態における電動送風機は以上のように構成されているので、電源端子１６に掃除機本体の端子２７を挿入した時に、掃除機本体の端子２７が端子保護カバー２５で確実に保持され、更に電源端子１６の屈曲部１８への応力を低減することができる。また、リブ２９の端面部に曲面部を形成するようにすれば、掃除機本体の端子２７の挿入が容易になり、作業性を向上させることができることは言うまでもない。   Since the electric blower in the present embodiment is configured as described above, when the terminal 27 of the cleaner body is inserted into the power supply terminal 16, the terminal 27 of the cleaner body is reliably held by the terminal protection cover 25. Furthermore, the stress on the bent portion 18 of the power supply terminal 16 can be reduced. Further, it is needless to say that if the curved surface portion is formed on the end face portion of the rib 29, the insertion of the terminal 27 of the cleaner main body becomes easy, and the workability can be improved.

（実施の形態３）
図５は、本発明の実施の形態３における電動送風機の電源端子近傍の拡大横断面図である。なお、上記実施の形態における電動送風機と同一構成部品については同一符号を付して、一部その説明を省略する。 Third Embodiment
FIG. 5 is an enlarged cross-sectional view of the vicinity of the power supply terminal of the electric blower according to the third embodiment of the present invention. The same components as those of the motor-driven blower in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be partially omitted.

本実施の形態における電動送風機は、図５に示すようには、端子保護カバー２５の両端に爪部３０を設け、前記爪部３０は電動機２のブラケットＢ１２の開口部２４の端部で係
止できるようにしたものである。 In the electric blower according to the present embodiment, as shown in FIG. 5, claws 30 are provided at both ends of the terminal protection cover 25, and the claws 30 are engaged at the end of the opening 24 of the bracket B12 of the motor 2. It is something that can be done.

これによって、端子保護カバー２５を電動送風機１の外側から確実に取り付けることができ、作業性の向上が図れると供に、端子保護カバー２５の保持を確実にできるようになる。   As a result, the terminal protection cover 25 can be securely attached from the outside of the electric blower 1, and the improvement of the workability can be achieved, and the terminal protection cover 25 can be reliably held.

（実施の形態４）
図６は、本発明の実施の形態４における電気掃除機の構成図である。なお、上記実施の形態における電動送風機と同一構成部品については同一符号を付して、一部その説明を省略する。 Embodiment 4
FIG. 6 is a block diagram of the vacuum cleaner in the fourth embodiment of the present invention. The same components as those of the motor-driven blower in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be partially omitted.

本実施の形態における電気掃除機は、上記実施の形態１〜３における電動送風機１のいずれかを内蔵した掃除機本体３１と、掃除機本体３１内の集塵室（図示せず）と連通した延長管３２と、ホース３３と、吸込み具３４とで構成されている。   The vacuum cleaner according to the present embodiment is in communication with the cleaner body 31 incorporating any of the electric blowers 1 according to the first to third embodiments and the dust collection chamber (not shown) in the cleaner body 31. An extension pipe 32, a hose 33, and a suction tool 34 are provided.

本実施の形態における電気掃除機は、以上のように構成されているので、電動送風機１で発生した気流により、吸込み具３４から空気と塵埃を吸込み、延長管３２、ホース３３を経由して、集塵室（図示せず）内に内蔵したフィルター（図示せず）で塵埃を捕集することができる。   Since the vacuum cleaner in the present embodiment is configured as described above, air and dust are sucked from the suction tool 34 by the air flow generated by the electric blower 1, and the air and dust are drawn through the extension pipe 32 and the hose 33. Dust can be collected by a filter (not shown) built in a dust collection chamber (not shown).

このとき、上記実施の形態１〜３で説明した優れた電動送風機１を内蔵しているので、信頼性の高い電気掃除機を実現することができる。   At this time, since the excellent electric blower 1 described in the first to third embodiments is built in, a highly reliable vacuum cleaner can be realized.

以上のように、本発明にかかる電動送風機は、信頼性向上が図れるため、電気掃除機など電動送風機を用いる家庭用電化機器、産業機器等の信頼性改善用途にも幅広く適用できる。   As mentioned above, since the electric blower concerning this invention can aim at reliability improvement, it can be widely applied to the reliability improvement application of household electrical appliances, an industrial apparatus, etc. which use electric blowers, such as a vacuum cleaner.

１ 電動送風機
２ 電動機
３ 出力軸
４ 回転ファン
５ 案内翼
６ ディフューザ
７ 吸気口
８ ファンケース
９ 界磁ユニット
１０ 電機子ユニット
１１ ブラケットＡ
１２ ブラケットＢ（ブラケット）
１３ 界磁鉄心
１４ 界磁巻線
１５ 界磁巻枠
１６ 電源端子
１７ 端子台
１８ 屈曲部
１９ 電機子鉄心
２０ 電機子巻線
２１ 整流子
２２ 軸受
２３ 排気口
２４ 開口部
２５ 端子保護カバー
２６ スリット部
２７ 端子
２８ リード線
２９ リブ
３０ 爪部
３１ 掃除機本体
３２ 延長管
３３ ホース
３４ 吸込み具 1 electric blower 2 motor 3 output shaft 4 rotating fan 5 guide wing 6 diffuser 7 air inlet 8 fan case 9 field unit 10 armature unit 11 bracket A
12 Bracket B (bracket)
13 field core 14 field winding 15 field winding 16 power terminal 17 terminal block 18 bending section 19 armature core 20 armature winding 21 commutator 22 bearing 23 exhaust port 24 opening 25 terminal protective cover 26 slit section 27 terminal 28 lead wire 29 rib 30 claw 31 vacuum cleaner main body 32 extension tube 33 hose 34 suction tool

Claims (4)

界磁鉄心及び前記界磁鉄心の両端面に装着した界磁巻枠に巻回された界磁巻線、及び前記界磁巻枠に前記界磁巻線の端部を電気的に接続した電源端子を圧入固定する端子台を設けた界磁ユニットと、出力軸に圧入固定された電機子鉄心に巻回された電機子巻線、及び前記出力軸に圧入固定された整流子と軸受から構成された電機子ユニットと、前記界磁ユニットと前記電機子ユニットを収納するブラケットと、前記出力軸に固定された回転ファンと、前記回転ファンの外周方向に位置し複数の固定翼を備えたディフューザとから構成される電動送風機において、
絶縁材料から成る端子保護カバーを前記電源端子近傍に設けた開口部を塞ぐように固定し、前記端子保護カバーに設けたスリット部に前記電源端子が挿入できるようにし、
前記スリット部の幅を前記電源端子の厚みと略同一にし、
前記電源端子に本体の端子が挿入される際、前記本体の端子が前記電源端子および前記スリット部に当接されることを特徴とする電動送風機。 Field winding core and field winding wound around field winding mounted on both end faces of the field winding, and power source having the end of the field winding electrically connected to the field winding A field unit provided with a terminal block for press-fitting and fixing a terminal, an armature winding wound around an armature core press-fitted and fixed to an output shaft, and a commutator and a bearing press-fitted and fixed to the output shaft Comprising: the armature unit as described above; a bracket for accommodating the field unit and the armature unit; a rotary fan fixed to the output shaft; and a plurality of fixed wings positioned in the outer peripheral direction of the rotary fan An electric blower comprising
A terminal protection cover made of an insulating material is fixed to close an opening provided in the vicinity of the power supply terminal so that the power supply terminal can be inserted into a slit provided in the terminal protection cover .
Making the width of the slit portion substantially the same as the thickness of the power supply terminal;
When the terminal of the main body is inserted into the power supply terminal, the terminal of the main body is brought into contact with the power supply terminal and the slit portion . スリット部の外周部分にリブを設けたことを特徴とする請求項１に記載の電動送風機。 The electric blower according to claim 1 , wherein a rib is provided on an outer peripheral portion of the slit portion. 端子保護カバーの外周部に爪部を形成し、前記爪部はブラケットの開口部の縁部と嵌合するようにしたことを特徴とする請求項１または２に記載の電動送風機。 The electric blower according to claim 1 or 2 , wherein a claw portion is formed on an outer peripheral portion of the terminal protection cover, and the claw portion is fitted to an edge portion of an opening portion of the bracket. 請求項１〜３のいずれか１項に記載の電動送風機を用いた電気掃除機。 A vacuum cleaner using the electric blower according to any one of claims 1 to 3 .
JP2016012585A 2016-01-26 2016-01-26 Electric blower and electric vacuum cleaner using it Expired - Fee Related JP6518946B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016012585A JP6518946B2 (en) 2016-01-26 2016-01-26 Electric blower and electric vacuum cleaner using it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016012585A JP6518946B2 (en) 2016-01-26 2016-01-26 Electric blower and electric vacuum cleaner using it

Publications (2)

Publication Number Publication Date
JP2017135805A JP2017135805A (en) 2017-08-03
JP6518946B2 true JP6518946B2 (en) 2019-05-29

Family

ID=59503066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016012585A Expired - Fee Related JP6518946B2 (en) 2016-01-26 2016-01-26 Electric blower and electric vacuum cleaner using it

Country Status (1)

Country Link
JP (1) JP6518946B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7312150B2 (en) * 2020-09-23 2023-07-20 日立グローバルライフソリューションズ株式会社 Permanent magnet rotating electric machine and washing machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5423907A (en) * 1977-07-26 1979-02-22 Alps Electric Co Ltd Motor brush
JP2002048099A (en) * 2000-07-31 2002-02-15 Nippon Densan Corp Electrically driven blower
JP5966154B2 (en) * 2012-12-21 2016-08-10 パナソニックＩｐマネジメント株式会社 Electric blower and electric vacuum cleaner using the same
JP2014187751A (en) * 2013-03-22 2014-10-02 Mitsuba Corp Fuel supply device
JP6011557B2 (en) * 2014-01-31 2016-10-19 株式会社デンソー Drive device

Also Published As

Publication number Publication date
JP2017135805A (en) 2017-08-03

Similar Documents

Publication Publication Date Title
JP6504754B6 (en) Electric blower and vacuum cleaner using the same
US20140356131A1 (en) Fan module and electric blower having the same
JP6375516B2 (en) Electric blower and electric vacuum cleaner using it
JP3307386B2 (en) Electric blower and vacuum cleaner using the same
JP6518946B2 (en) Electric blower and electric vacuum cleaner using it
JP4635563B2 (en) Electric blower
KR20090005460A (en) Blushless direct current motor assemble
TW201640030A (en) Axial flow fan and casing thereof
JP6450928B2 (en) Electric blower and electric vacuum cleaner using the same
JP5316192B2 (en) Electric blower and electric vacuum cleaner using the same.
JP5966154B2 (en) Electric blower and electric vacuum cleaner using the same
JP6458243B2 (en) Electric blower and electric vacuum cleaner using the same
JP4952061B2 (en) Electric blower and electric vacuum cleaner using the same
EP3757399A1 (en) Boss, rotating fan, electric blower, electric cleaner, and hand dryer
JP4498358B2 (en) Electric motor and electric blower provided with the same
JP2006299808A (en) Electric blower and vacuum cleaner using the same
JP6557864B2 (en) Electric blower and electric vacuum cleaner using it
JP2009095534A (en) Electric blower
JP2005207235A (en) Electric blower and vacuum cleaner using the same
JP6147999B2 (en) Commutator motor
JP2013199871A (en) Electric blower
JP2019088190A (en) Electric blower and vacuum cleaner using the same
EP4317703A1 (en) Electric blower
JP5125096B2 (en) Electric blower and electric vacuum cleaner using the same
CN111033047B (en) Scroll fluid machine

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20180220

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20181204

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20181130

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190115

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20190116

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20190312

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190325

R151 Written notification of patent or utility model registration

Ref document number: 6518946

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

LAPS Cancellation because of no payment of annual fees