JPH01315681A - Closed motor driven compressor - Google Patents
Closed motor driven compressorInfo
- Publication number
- JPH01315681A JPH01315681A JP14749288A JP14749288A JPH01315681A JP H01315681 A JPH01315681 A JP H01315681A JP 14749288 A JP14749288 A JP 14749288A JP 14749288 A JP14749288 A JP 14749288A JP H01315681 A JPH01315681 A JP H01315681A
- Authority
- JP
- Japan
- Prior art keywords
- power source
- inverter
- secondary power
- rotor
- battery
- 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
- 230000006698 induction Effects 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は自動車に搭載して用いられるパーツテリーを電
源とした冷蔵庫等の冷凍サイクル用の密閉型電動圧縮機
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hermetic electric compressor for the refrigeration cycle of a refrigerator or the like, which is powered by a battery mounted on an automobile.
従来の技術
近年、観光バス等にはほとんど冷蔵庫が搭載されており
、レジャー指向に伴ない、乗用車用の冷蔵庫の需要も増
加の傾向にある。以下、図面を参照しながら、従来の密
閉型電動圧縮機の一例について説明する。第３図及び第
４図において示したものは、従来、−船釣に車載用冷蔵
庫等に使われている。ＤＣブラシレス方式のモータを用
いたレシプロタイプの圧縮機である。第３図はその駆動
系を示したもので、１はバッテリー、２はコントローラ
、３は圧縮機本体で、バッテリー１を一次電源とし、圧
縮機本体３からの信号に応じた矩形波を二次電源として
圧縮機本体３に出力するコントローラ２によって、圧縮
機本体３は駆動される。BACKGROUND OF THE INVENTION In recent years, most tour buses and the like are equipped with refrigerators, and as passenger cars become more leisure-oriented, the demand for refrigerators for passenger cars is on the rise. An example of a conventional hermetic electric compressor will be described below with reference to the drawings. The devices shown in FIGS. 3 and 4 have conventionally been used in vehicle-mounted refrigerators for boat fishing, and the like. This is a reciprocating type compressor that uses a DC brushless motor. Figure 3 shows the drive system. 1 is the battery, 2 is the controller, and 3 is the compressor main body. The battery 1 is the primary power source, and the rectangular wave according to the signal from the compressor main body 3 is the secondary power source. The compressor main body 3 is driven by the controller 2 which outputs power to the compressor main body 3 as a power source.
第４図は圧縮機本体３の断面図で、４は密閉容器、６は
ステータ６．マグネツトロータ了とからなるＤＣ７’ラ
シレスモータ、８は前記ＤＣブラシレスモータ６によっ
て駆動される、レシプロタイプの圧縮要素であシ、いず
れも密閉容器４内に収納されている。１０はマグネット
ロータ７の位置を検出する素子、１１は素子１０を支持
するステイで、ステータ６に固定しである。１５は素子
１０の信号を出力する出力端子で密閉容器４に固着され
ている。１６はコントローラ２からの二次電源の入力端
子で、同じく密閉容器４に固着され、ステータ６と接続
されている。FIG. 4 is a sectional view of the compressor main body 3, where 4 is a closed container, 6 is a stator 6. A DC 7' brushless motor 8 consisting of a magnet rotor and a reciprocating type compression element driven by the DC brushless motor 6 is housed in a closed container 4. 10 is an element for detecting the position of the magnet rotor 7, and 11 is a stay that supports the element 10 and is fixed to the stator 6. Reference numeral 15 denotes an output terminal for outputting a signal from the element 10, which is fixed to the closed container 4. Reference numeral 16 denotes an input terminal for a secondary power source from the controller 2, which is also fixed to the closed container 4 and connected to the stator 6.
以上のような構成において、マグネットロータ７の位置
を検出する素子１ｏからの信号は出力端子１６を経てコ
ントローラ２に送られ、前記信号に応じて生成された矩
形波が二次電源として、入力端子１６を経てＤＣブラシ
レスモータ６に入力され、マグネットロータ７が回転し
、圧縮要素８を駆動する。In the above configuration, a signal from the element 1o that detects the position of the magnet rotor 7 is sent to the controller 2 via the output terminal 16, and a rectangular wave generated in accordance with the signal is sent to the input terminal as a secondary power source. The signal is input to the DC brushless motor 6 via the motor 16, and the magnet rotor 7 rotates to drive the compression element 8.
発明が解決しようとする課題
しかしながら以上のような構成では、圧縮機本体におい
て、マグネットロータの位置検出に要する部品点数が極
めて多く、また、これらを組立調整する工数も複雑とな
る。更Ｋ、マグネットロータ自体、鉄粉系のゴミが組立
時に付着し易く、これら鉄粉係のゴミが摺動部に入り込
み、異常摩耗。Problems to be Solved by the Invention However, in the above configuration, the number of parts required for detecting the position of the magnet rotor in the compressor main body is extremely large, and the number of steps for assembling and adjusting these parts is also complicated. Additionally, iron powder dust tends to adhere to the magnetic rotor itself during assembly, and these iron powder dust enter the sliding parts, causing abnormal wear.
ロック等を引起こす等、信頼性の面でも多くの課題を残
していた。Many problems remained in terms of reliability, such as locking.
本発明は上記課題に鑑み、位置検出手段及びマグネット
ロータが不要となる密閉型電動圧縮機を提供するもので
ある。In view of the above problems, the present invention provides a hermetic electric compressor that does not require a position detection means or a magnetic rotor.
課題を解決するための手段
以上のような課題を解決するだめに本発明の密閉型電動
圧縮機は、バッテリーを一次電源とし、前記−次電源と
ほぼ同電圧の交流を二次電源として出力するインバータ
を備え、圧縮要素と、前記二次電源によって駆動される
インダクションモータとを密閉容器内に収納した構成を
備えたものである。Means for Solving the Problems In order to solve the above-mentioned problems, the hermetic electric compressor of the present invention uses a battery as a primary power source and outputs alternating current of approximately the same voltage as the secondary power source as a secondary power source. The compressor is equipped with an inverter, and has a configuration in which a compression element and an induction motor driven by the secondary power source are housed in a closed container.
作 用
本発明は上記した構成により、ブラシレスＤＣモータが
不要となるため、位置検出手段及びマグネットロータは
不要となる。Operation The present invention, with the above-described configuration, eliminates the need for a brushless DC motor, and thus eliminates the need for a position detection means and a magnetic rotor.
実施例
以下、本発明の一実施例について、図面を参照しながら
説明する。尚、従来例と同一部品は同一符号を用いて説
明する。第１図は駆動系を示したもので、１はバッチＩ
Ｊ−％２０はインバータ、２１は圧縮機本体であシ、バ
ッテリー１を一次電源とし、インバータ２０によって前
記−次電源とほぼ同電圧の３相交流が二次電源として出
力され、圧縮機本体２１を駆動する。前記二次電源は消
費電力量を減らすため、効率を上げる目的でＰＷＭ変調
されている。第２図は圧縮機本体２１の断面図で、家庭
用冷蔵庫でも主流となシつつある横型ローリングピスト
ンタイプの圧縮機である。２２は密閉容器、２３は３相
型のインダクションモータで、ステータ２４、ロータ２
６から構成されている。２６は前記インダクションモー
タ２３によって駆動されるローリングピストン式の圧縮
要素でインダクシヲンモータ２３と共に密閉容器２２に
収納される。２８はインバータ２０からの二次電源の入
力端子で、密閉容器２２に固着され、ステータ２４と接
続されている。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. Note that parts that are the same as those in the conventional example will be explained using the same reference numerals. Figure 1 shows the drive system, 1 is batch I.
J-% 20 is an inverter, 21 is the compressor main body, the battery 1 is used as a primary power source, the inverter 20 outputs 3-phase AC with almost the same voltage as the secondary power source as a secondary power source, and the compressor main body 21 to drive. The secondary power source is PWM modulated for the purpose of increasing efficiency in order to reduce power consumption. FIG. 2 is a sectional view of the compressor main body 21, which is a horizontal rolling piston type compressor that is becoming mainstream in household refrigerators. 22 is a sealed container, 23 is a three-phase induction motor, which includes a stator 24 and a rotor 2.
It consists of 6. 26 is a rolling piston type compression element driven by the induction motor 23, and is housed in the closed container 22 together with the induction motor 23. Reference numeral 28 denotes an input terminal for a secondary power source from the inverter 20, which is fixed to the closed container 22 and connected to the stator 24.
以上のような構成において、インバータ２ｏより二次電
源として出力される３中交流は入力端子２８を経てイン
ダクションモ〜り２３に入力され、インバータ２ｏの周
波数に対し、若干のすベシを生じながらロータ２５が回
転し、圧縮要素２６を駆動する。In the above configuration, the AC output from the inverter 2o as a secondary power source is input to the induction motor 23 via the input terminal 28, and is applied to the rotor with a slight deviation from the frequency of the inverter 2o. 25 rotates and drives the compression element 26.
従って、ブラシレスＤＣモータに欠かせないマグネット
ロータの位置検出に必要な数多くの部品が本構成によっ
て不要となり、同時にこれらの部品を組立調整するため
の複雑な工数もなくなシ、極めて安価な密閉型電動圧縮
機を実現できる。更に、マグネットロータを必要としな
いだめ、組立時に付着する鉄系のゴミの量も減り、高い
信頼性を得ることが可能である。また、本発明によれば
、−次電源と二次電源との間で電圧増幅を行なわないた
め、特別な増幅回路が不要であり、インバータのコスト
を低くおさえることができる。なお、圧縮機起動時は、
インダクンヨンモータの場合、通常定格電流の数倍の起
動電流が流れるが、周波数、電圧を徐々に上げていく、
いわゆるソフトスタートをかけることで起動時の電流を
低くおさえ、インバータの出力部のスイッチング素子の
容量を小さくし、インバータのコストを安くすることが
可能である。Therefore, this configuration eliminates the need for many parts required to detect the position of the magnetic rotor, which is indispensable for brushless DC motors, and at the same time eliminates the complicated man-hours required to assemble and adjust these parts. An electric compressor can be realized. Furthermore, since a magnetic rotor is not required, the amount of iron-based dust that adheres during assembly is reduced, making it possible to obtain high reliability. Further, according to the present invention, since voltage amplification is not performed between the negative power source and the secondary power source, a special amplification circuit is not required, and the cost of the inverter can be kept low. In addition, when starting the compressor,
In the case of an indakunyong motor, the starting current normally flows several times the rated current, but as the frequency and voltage are gradually increased,
By applying a so-called soft start, it is possible to keep the current at startup low, reduce the capacitance of the switching elements in the output section of the inverter, and reduce the cost of the inverter.
発明の効果
以上のように本発明はバッテリーを一次電源とし、前記
−次電源とほぼ同電圧の交流を二次電源として出力する
インバータをｆｊｎえ、圧１略要素と、前記二次″厩源
によって駆動されるインダクションモークとを密閉容器
内に収納することによシ、ロータの位置検出手段及びマ
グネットロータが不要となシ、極めて安価で、信頼性の
高い密閉型電動圧縮機を実現できる。Effects of the Invention As described above, the present invention uses a battery as a primary power source, an inverter that outputs alternating current of approximately the same voltage as the secondary power source as a secondary power source, a voltage element, and the secondary power source. By housing the induction moke driven by the rotor in a closed container, a rotor position detection means and a magnet rotor are not required, and an extremely inexpensive and highly reliable hermetic electric compressor can be realized.
第１図は本発明の一実施例における駆動系を示した関連
図、第２図は同第１図の圧縮機本体の断面図、第３図は
従来例の駆動系を示した関連図、第４図は同じく圧縮機
本体の断面図である。
１・・・・・・バッテリー、２０・・・・・・インバー
タ、２２・・・・・・密閉容器、２３・・・・・・イン
ダクンヨンモータ、２６・・・・・・圧縮要素。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名Ｉ・
・−バリテリー
６− イ ソ バ − タ
第１図
＄２１１１ａ−ＩＥｍｌｌ＊FIG. 1 is a related diagram showing a drive system in an embodiment of the present invention, FIG. 2 is a sectional view of the compressor main body in FIG. 1, and FIG. 3 is a related diagram showing a drive system in a conventional example. FIG. 4 is also a sectional view of the compressor main body. DESCRIPTION OF SYMBOLS 1...Battery, 20...Inverter, 22...Airtight container, 23...Indakunyong motor, 26...Compression element. Name of agent: Patent attorney Toshio Nakao and one other person I.
・-Varitery 6-Isoba-ta Figure 1 $2111a-IEmll*
Claims (1)
の交流を二次電源として出力するインバータを備え、圧
縮要素と、前記二次電源によって駆動されるインダクシ
ョンモータとを密閉容器内に収納した密閉型電動圧縮機
。A sealed type that uses a battery as a primary power source, is equipped with an inverter that outputs alternating current of approximately the same voltage as the primary power source as a secondary power source, and houses a compression element and an induction motor driven by the secondary power source in a sealed container. Electric compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14749288A JPH01315681A (en) | 1988-06-15 | 1988-06-15 | Closed motor driven compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14749288A JPH01315681A (en) | 1988-06-15 | 1988-06-15 | Closed motor driven compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01315681A true JPH01315681A (en) | 1989-12-20 |
Family
ID=15431614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14749288A Pending JPH01315681A (en) | 1988-06-15 | 1988-06-15 | Closed motor driven compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01315681A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50135605A (en) * | 1974-04-09 | 1975-10-28 | ||
| JPS59578B2 (en) * | 1979-07-30 | 1984-01-07 | 新日本製鐵株式会社 | Strip heating device for continuous annealing furnace |
-
1988
- 1988-06-15 JP JP14749288A patent/JPH01315681A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50135605A (en) * | 1974-04-09 | 1975-10-28 | ||
| JPS59578B2 (en) * | 1979-07-30 | 1984-01-07 | 新日本製鐵株式会社 | Strip heating device for continuous annealing furnace |
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