JPH0112950B2 - - Google Patents
Info
- Publication number
- JPH0112950B2 JPH0112950B2 JP54116574A JP11657479A JPH0112950B2 JP H0112950 B2 JPH0112950 B2 JP H0112950B2 JP 54116574 A JP54116574 A JP 54116574A JP 11657479 A JP11657479 A JP 11657479A JP H0112950 B2 JPH0112950 B2 JP H0112950B2
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- ferrite
- ferrite magnet
- core
- pole member
- 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
Links
- 229910000859 α-Fe Inorganic materials 0.000 claims description 43
- 230000005291 magnetic effect Effects 0.000 claims description 35
- 230000004907 flux Effects 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims 1
- 229910000828 alnico Inorganic materials 0.000 description 17
- 239000000463 material Substances 0.000 description 7
- 230000005347 demagnetization Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000018 strontium carbonate Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Electromagnetic Pumps, Or The Like (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
【発明の詳細な説明】
本発明は、振動型圧縮機、特に該圧縮機内部に
設けられる永久磁石として、アルニコ系磁石に代
えてフエライト系磁石を使用するようにした振動
型圧縮機に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibratory compressor, and particularly to a vibratory compressor in which a ferrite magnet is used instead of an alnico magnet as a permanent magnet provided inside the compressor. be.
一般に、振動型圧縮機と称されるものは磁石と
ボイス・コイルとからなるダイナミツク・スピー
カの原理と、バネによる機械的共振原理との組合
せによつて構成され、その動作は電気系であつて
はシンクロナス・モータと同一であり、これに機
械的振動理論を組合せたものと考えられる。そし
てこの種の振動型圧縮機は冷凍機用コンプレツサ
及び空気圧縮機等として広く使用されている。 In general, what is called a vibratory compressor is constructed based on a combination of the principle of a dynamic speaker consisting of a magnet and a voice coil, and the principle of mechanical resonance using a spring, and its operation is based on an electrical system. is the same as a synchronous motor, and can be considered to be a combination of mechanical vibration theory. This type of vibratory compressor is widely used as a refrigerator compressor, an air compressor, and the like.
次に第１図ａ図示の側断面図及び同図ｂ図示の
Ｘ−X′からみた断面図を参照して、従来使用さ
れていた圧縮機の構成を説明する。図中の符号１
はハウジング、２は永久磁石、３は内部鉄心、４
は外部鉄心、５は環状間隙、６は振動コイル、７
は支持体、８，９は共振バネ、１０は吸入口、１
０′は内部パイプ、１０″は吐出パイプ、１０は
吐出口であつて図示構成を有している。即ち、環
状間隙５中には永久磁石２による内部鉄心３およ
び外部鉄心４を介して供給される磁界が形成され
ているため、前記環状間隙５中に配置された振動
コイル６に交番電流が供給されると、振動コイル
６はコイル支持体と一体になつて供給交番電流の
周波数に応じた振動する力が与えられ、コイル支
持体７に連結されたピストン１１を駆動する。し
かもこの場合、例えばフレオン等のガスは吸入口
１０からハウジング内部に入り、内部パイプ１
０′、バネ中心位置にあるピストン１１を経由し
吐出パイプ１０″を介して吐出口１０から外部
に吐出される。 Next, the configuration of a conventionally used compressor will be explained with reference to a side sectional view shown in FIG. 1A and a sectional view taken along line X-X' shown in FIG. 1B. Code 1 in the diagram
is the housing, 2 is the permanent magnet, 3 is the internal core, 4
is the external core, 5 is the annular gap, 6 is the vibration coil, 7
is a support, 8 and 9 are resonance springs, 10 is an inlet, 1
0' is an internal pipe, 10'' is a discharge pipe, and 10 is a discharge port, which has the configuration shown in the figure. That is, a permanent magnet 2 is supplied to the annular gap 5 via an internal core 3 and an external core 4. Since a magnetic field is formed, when an alternating current is supplied to the vibrating coil 6 disposed in the annular gap 5, the vibrating coil 6 becomes integrated with the coil support and changes according to the frequency of the supplied alternating current. A vibrating force is applied to drive the piston 11 connected to the coil support 7. Moreover, in this case, gas such as freon enters the inside of the housing from the inlet 10 and enters the internal pipe 1.
0', and is discharged to the outside from the discharge port 10 via the piston 11 located at the spring center position and through the discharge pipe 10''.
以上が駆動原理のあらましであるが、これら振
動型圧縮機には永久磁石２として従来、アルニコ
系磁石が使用されていた。即ち、アルニコ系磁石
は、その一例として挙げると、Co25％、Ni15％、
Al8％、Fe52％からなる成分を有するものがある
ことからも理解できる如く、コバルトの含有率が
高い。 The above is an overview of the driving principle. Conventionally, alnico magnets have been used as the permanent magnets 2 in these vibrating compressors. In other words, alnico magnets have, for example, 25% Co, 15% Ni,
As can be understood from the fact that some have components consisting of 8% Al and 52% Fe, the content of cobalt is high.
しかし近年コバルトの資源不足によつてアルニ
コ系磁石の価格が高騰しており、このためにフエ
ライト系磁石を使用することが注目されるように
なつてきた。フエライト系磁石としては、例えば
バリウム・フエライト、ストロンチユム・フエラ
イト等があるが、いずれもその主成分は酸化第２
鉄（Fe2O3）であつて全体の78％を占め、他の成
分はバリウム・フエライトにあつては例えば炭酸
バリウム（BaCo3）18％、その他４％であり、一
方、ストロンチユム・フエライトにあつては例え
ば炭酸ストロンチユム（SrCO3）18％、その他４
％を有している。即ち、上記フエライトの含有成
分率から理解できる如く、フエライト系磁石は安
価であつて近年使用量が増加してきている。 However, in recent years, the price of alnico magnets has risen due to the lack of cobalt resources, and for this reason, the use of ferrite magnets has been attracting attention. Examples of ferrite-based magnets include barium ferrite and strontium ferrite, but in both cases the main component is secondary oxide.
Iron (Fe 2 O 3 ) accounts for 78% of the total, and other components include barium carbonate (BaCo 3 ), 18%, and other 4% in barium ferrite, while strontium ferrite contains 78% of the total. For example, strontium carbonate (SrCO 3 ) 18%, other 4
%have. That is, as can be understood from the above-mentioned content ratio of ferrite, ferrite magnets are inexpensive and have been used in increasing amounts in recent years.
したがつて振動型圧縮機に使用される永久磁石
を高価なアルニコ系磁石から安価なフエライト系
磁石に置換することが当然考えられるが、以下の
如き特性上の難点が問題になる。 Therefore, it is natural to consider replacing the expensive alnico-based magnets with inexpensive ferrite-based magnets as the permanent magnets used in the vibratory compressor, but the following problems arise in terms of characteristics.
第２図にはアルニコ系磁石とフエライト系磁石
との減磁曲線が夫々示されるが、図の縦軸は磁束
密度Ｂ、横軸は保持力Ｈを示し、図示上部横軸は
パーミアンス係数を示す。そして，は夫々ア
ルニコ系磁石及びフエライト系磁石の特性の一例
を示している。一般に永久磁石の設計に際して
は、予想される外部からの逆磁界の影響及び環境
の温度変化に伴なう減磁を考慮しつつ、磁束密度
Ｂと保持力Ｈとで表わされる磁気エネルギ積が最
大となる動作点を選ぶようにしている。そして原
点０と動作点とを結ぶ延長線上のパーミアンス係
数によつて、磁石の断面積と長さとの比が決定さ
れる。したがつて減磁曲線，と作動線ａ，ｂ
との交点の延長によつて夫々の磁石のパーミアン
ス係数が表わされる。しかし一般に磁石の全磁束
は下記の式によつて示される。 Figure 2 shows the demagnetization curves of alnico magnets and ferrite magnets, where the vertical axis of the figure shows the magnetic flux density B, the horizontal axis shows the coercive force H, and the horizontal axis at the top of the figure shows the permeance coefficient. . and show examples of the characteristics of alnico-based magnets and ferrite-based magnets, respectively. Generally, when designing a permanent magnet, the maximum magnetic energy product represented by magnetic flux density B and coercive force H is taken into consideration, considering the influence of expected external reverse magnetic fields and demagnetization due to environmental temperature changes. I try to choose an operating point where . The ratio between the cross-sectional area and the length of the magnet is determined by the permeance coefficient on the extension line connecting the origin 0 and the operating point. Therefore, the demagnetization curve and the operating lines a, b
The permeance coefficient of each magnet is expressed by the extension of the intersection with . However, in general, the total magnetic flux of a magnet is expressed by the following equation.
φ＝Bd×ｄ
但しφは全磁束、Bdは動作点における磁束密
度、ｄは磁石の断面積、
ここで第２図に明示される如く、アルニコ系磁
石は作動点Ａにおいて10Kガウスの磁束密度とな
るのに対して、フエライト系磁石は作動点Ｂにお
いて2Kガウスであるため、上記両磁石の全磁束
を等しくするためには、フエライト磁石の断面積
をアルニコ磁石のそれの５倍にする必要がある。
しかし磁気エネルギ積は磁石の単位体積当りの磁
気エネルギで示され、夫々の磁石の作動点におけ
る磁気エネルギ積と断面積とからアルニコ磁石と
フエライト磁石との厚みの比は１：0.4となる。 φ=Bd×d However, φ is the total magnetic flux, Bd is the magnetic flux density at the operating point, and d is the cross-sectional area of the magnet.As shown in Figure 2, the alnico magnet has a magnetic flux density of 10K Gauss at the operating point A. On the other hand, since the ferrite magnet has 2K Gauss at the operating point B, in order to equalize the total magnetic flux of both magnets, the cross-sectional area of the ferrite magnet needs to be five times that of the alnico magnet. There is.
However, the magnetic energy product is expressed as the magnetic energy per unit volume of the magnet, and from the magnetic energy product and cross-sectional area at the operating point of each magnet, the ratio of the thicknesses of the alnico magnet and the ferrite magnet is 1:0.4.
即ち、両磁石の比較において、同等な磁気エネ
ルギを有するためには、フエライト磁石はアルニ
コ磁石に対して断面積は大きく、しかも厚みにお
いて薄い、いわゆる偏平な形状にする必要があ
る。 That is, in a comparison of both magnets, in order to have equivalent magnetic energy, a ferrite magnet needs to have a larger cross-sectional area and a thinner thickness than an alnico magnet, that is, a so-called flat shape.
したがつて第１図図示の振動型圧縮機に使用さ
れている永久磁石（アルニコ磁石）２をフエライ
ト磁石で置換するためには、前記永久磁石２の断
面形状を大きくしなければならず、永久磁石を従
来のアルニコ磁石からフエライト磁石にすること
によつて価格を低廉にすることができる反面、振
動型圧縮機の外径形状に影響を与えるという新た
な問題が生ずる。そこで出願人は上記外径形状の
大きなフエライト磁石の装着位置を外部鉄心内周
面に選び、しかも該内周面に沿つて分割配設した
振動型圧縮機の具体的構造を先に提案した。この
構造が第３図に示されている。第３図図示の構成
は公知ではないが、図において第１図として示し
た従来構成との差異は、(i)永久磁石２がアルニコ
磁石からフエライト磁石にその材質を変更した
点、(ii)前記材質の変更により断面積が大きくしか
も薄い偏平形状にする必要があることから、従
来、ハウジング１の中心位置上部に設けられてい
た永久磁石をハウジング内周縁にある外部鉄心内
面に即ち環状磁気間隙内に装着し、断面積の増大
を吸収した点、(iii)前記外部鉄心内面への装着に際
して永久磁石を断面弧状の磁石中に分割して配置
し、分割配置された永久磁石片相互の間隙内に吐
出パイプを配置してスペース・フアクターの改善
と同時に製造工程の簡略化をはかつた点等であ
る。 Therefore, in order to replace the permanent magnet (alnico magnet) 2 used in the vibratory compressor shown in FIG. 1 with a ferrite magnet, the cross-sectional shape of the permanent magnet 2 must be increased, Although the price can be reduced by changing the magnet from a conventional alnico magnet to a ferrite magnet, a new problem arises in that it affects the outer diameter shape of the vibratory compressor. Therefore, the applicant has previously proposed a specific structure of a vibratory compressor in which the ferrite magnet with the large outer diameter is mounted on the inner circumferential surface of the outer core, and is divided and arranged along the inner circumferential surface. This structure is shown in FIG. Although the configuration shown in FIG. 3 is not publicly known, the differences from the conventional configuration shown in FIG. 1 are (i) that the material of the permanent magnet 2 has been changed from alnico magnet to ferrite magnet; Due to the change in the material mentioned above, it is necessary to create a flat shape with a large cross-sectional area and a thin thickness. (iii) When attached to the inner surface of the external core, the permanent magnet is divided into magnets with an arc-shaped cross section, and the gap between the divided permanent magnet pieces is reduced. By arranging the discharge pipe inside, the space factor was improved and the manufacturing process was simplified.
上記したこれらの点を第３図について説明する
と、２はフエライトからなる永久磁石であつて外
部鉄心４の内周面に配置されており、発生される
磁束が強磁性材からなるポール部材１２によつて
内部鉄心に向つて効率よく集束されるようにされ
る。即ち、永久磁石２の材質がフエライト磁石に
なつたために断面積を大とする必要があり、した
がつて内部鉄心３及び振動コイル６と相接する位
置よりも、さらに上方にまでのびるよう軸方向の
寸法が大となるようにされる。このため永久磁石
２の表面には強磁性材からなるポール部材１２が
装着され、該ポール部材１２が図示下方にある磁
束を集めて、環状間隙５に集束させるようにされ
る。なお永久磁石２は磁石片に３分割されてお
り、磁石片相互の間隙内部に吐出パイプ１０″が
挿通されている。このように磁石片相互の間隙を
利用して吐出パイプ１０″を挿通するようにして
いる。このことから、永久磁石２を環状磁気間隙
内に配置したことによる圧縮機の直径の増大を実
質上吸収することが可能となる。しかし、上記第
３図図示の構造において、上記ポール部材１２を
フエライト磁石の内面に固着する構造が煩雑とな
りかつ圧縮機製造時の製造工数が大となる。 To explain these points mentioned above with reference to FIG. 3, reference numeral 2 denotes a permanent magnet made of ferrite, which is placed on the inner peripheral surface of the external iron core 4, and the generated magnetic flux is directed to the pole member 12 made of ferromagnetic material. Therefore, it is efficiently focused toward the internal core. That is, since the material of the permanent magnet 2 is now a ferrite magnet, it is necessary to increase the cross-sectional area. The dimensions are made to be large. For this purpose, a pole member 12 made of a ferromagnetic material is attached to the surface of the permanent magnet 2, and the pole member 12 collects the magnetic flux in the downward direction in the figure and focuses it on the annular gap 5. The permanent magnet 2 is divided into three magnet pieces, and the discharge pipe 10'' is inserted into the gap between the magnet pieces.In this way, the discharge pipe 10'' is inserted through the gap between the magnet pieces. That's what I do. This makes it possible to substantially absorb the increase in the diameter of the compressor due to the arrangement of the permanent magnet 2 within the annular magnetic gap. However, in the structure shown in FIG. 3, the structure for fixing the pole member 12 to the inner surface of the ferrite magnet becomes complicated, and the number of manufacturing steps during the manufacture of the compressor increases.
本発明は上記問題点を解決することを目的とし
てなされたものであり、ポール部材を板状体を彎
曲せしめて弾性をもつよう構成し、該ポール部材
を彎曲した圧縮状態において環状磁気間隙中に挿
入し、前記弾性材の弾力を利用して外部鉄心、フ
エライト磁石、ポール部材の夫々を密着固定させ
るようにした振動型圧縮機を提供することを目的
としている。以下図面を参照しつつ実施例を説明
する。 The present invention has been made for the purpose of solving the above-mentioned problems, and the pole member is made of a curved plate-like body to have elasticity, and the pole member is placed in the annular magnetic gap in the curved and compressed state. It is an object of the present invention to provide a vibratory compressor in which an external iron core, a ferrite magnet, and a pole member are closely fixed by inserting the elastic member and utilizing the elasticity of the elastic material. Examples will be described below with reference to the drawings.
第４図は本発明になる振動型圧縮機の要部のみ
を示す１実施例側断面図であり、同図ａは磁気回
路部のみを示す側断面図、同図ｂは同図ａにおけ
るＹ−Y′からみた断面図、第５図はポール部材
とフエライト磁石との取付関係を示し、同図ａは
ポール部材の一部に切起しをもうけてフエライト
磁石に固定する場合の斜視図、同図ｂはポール部
材に突起をもうけてフエライト磁石に固定する場
合の斜視図を夫々示す。 FIG. 4 is a side sectional view of one embodiment showing only the essential parts of the vibratory compressor according to the present invention, FIG. 4a is a side sectional view showing only the magnetic circuit section, and FIG. 5 shows the attachment relationship between the pole member and the ferrite magnet, and FIG. Figure b shows a perspective view of a case in which a pole member is provided with a protrusion and fixed to a ferrite magnet.
図において第１図として示した従来構成との差
異を列挙すると、(イ)永久磁石２がアルニコ磁石か
らフエライト磁石にその材質を変更した点、(ロ)前
記材質の変更により断面積が大きくしかも薄い偏
平形状にする必要があることから、従来、ハウジ
ングの中心位置上部に設けられていた永久磁石を
ハウジング内周縁にある外部鉄心内面、即ち環状
磁気間隙内に装着し、断面積の増大に対処した
点、(ハ)前記外部鉄心内面への装着に際してフエラ
イト磁石を断面弧状に形成して分割配置し、ポー
ル部材と共に外部鉄心に対して一体に固着するこ
ととなるが、この場合に、予め弾性材をもつて板
状に形成されたポール部材を彎曲した圧縮状態に
おいて挿入し、フエライト磁石に当接拡大して接
触圧力をかけ密着固定するようにした点、(ニ)更
に、ポール部材には分割配置されたフエライト磁
石の形状に合せて適当な保持手段をもうけると共
に、フエライト磁石の周縁に沿つてのポール部材
の回転移動を防止する手段を講じた点等である。 Listing the differences from the conventional configuration shown in Figure 1 are (a) the material of the permanent magnet 2 has been changed from an alnico magnet to a ferrite magnet, and (b) the cross-sectional area has been increased due to the change in material. Since it is necessary to have a thin and flat shape, the permanent magnet that was conventionally installed at the upper center of the housing was installed inside the outer core at the inner periphery of the housing, that is, within the annular magnetic gap, to cope with the increase in cross-sectional area. (c) When attached to the inner surface of the external core, the ferrite magnet is formed into an arc-shaped cross section and is divided into sections, and is fixed to the external core together with the pole member. The pole member, which is formed into a plate shape with material, is inserted in a curved and compressed state, contacts the ferrite magnet and expands, and applies contact pressure to tightly fix the pole member. In addition to providing suitable holding means to match the shape of the divided ferrite magnets, a means for preventing rotational movement of the pole member along the periphery of the ferrite magnets is provided.
上記列挙された各点を第４図および第５図につ
いて説明すると、２はフエライトからなる永久磁
石であつて外部鉄心４の内周面に配置されてお
り、発生される磁束が磁性を有するポール部材１
２によつて内部鉄心３に向つて集束される。即
ち、永久磁石２の材質がフエライト磁石になつた
ために断面積を大とする必要があり、したがつて
第１図に示される如く内部鉄心３及び振動コイル
６と相対する位置よりも、永久磁石２の軸方向の
寸法が大となるようにされる。このため永久磁石
２の表面には弾性体からなるポール部材１２が装
着され、該ポール部材１２が軸方向に拡がつた磁
束を集束して、環状磁気間隙５に集中されるよう
にされる。第５図には分割されたフエライト磁石
２とポール部材１２との関係を示す図が示されて
いる。そして同図ａにはフエライト磁石の形状に
合せて前記ポール部材１２に切起し１３をもうけ
て磁石２を保持する実施例が示されており、同図
ｂには前記切起し１３に代えて突起１４がもうけ
られて磁石の保持と共に、ポール部材１２の上下
端周縁に鍔１５をもうけて永久磁石２に対して軸
方向移動をなくするよう固定される。ポール部材
１２は磁性を有する板状に形成されており、非圧
縮状態のもとで磁石２の内径によつてつくられる
円よりも大きな円周を有する如く形成される。し
たがつて外部鉄心４に接着剤によつて磁石２が固
着されている状態で、ポール部材１２を更に彎曲
した圧縮状態にしつつ環状磁気間隙に挿入し、磁
石に対する切起し１３などの位置を合せて圧縮状
態を解けば、ポール部材１２は磁石内壁に当接拡
大され永久磁石２に対して密着固定される。勿論
接着剤を用いることは任意である。 To explain each point listed above with reference to FIGS. 4 and 5, reference numeral 2 denotes a permanent magnet made of ferrite, which is placed on the inner circumferential surface of the outer core 4, and the generated magnetic flux is attached to a magnetic pole. Part 1
2 towards the inner core 3. That is, since the material of the permanent magnet 2 has become a ferrite magnet, it is necessary to increase the cross-sectional area. Therefore, as shown in FIG. 2 is made larger in the axial direction. For this purpose, a pole member 12 made of an elastic material is attached to the surface of the permanent magnet 2, and the pole member 12 focuses the magnetic flux spreading in the axial direction so that it is concentrated in the annular magnetic gap 5. FIG. 5 shows a diagram showing the relationship between the divided ferrite magnet 2 and the pole member 12. Figure a shows an embodiment in which the pole member 12 is provided with a cut 13 in accordance with the shape of the ferrite magnet to hold the magnet 2. A protrusion 14 is provided to hold the magnet, and flanges 15 are provided at the upper and lower peripheral edges of the pole member 12 to fix it relative to the permanent magnet 2 to prevent axial movement. The pole member 12 is formed into a magnetic plate shape, and is formed to have a circumference larger than the circle formed by the inner diameter of the magnet 2 in an uncompressed state. Therefore, with the magnet 2 fixed to the external core 4 with adhesive, the pole member 12 is further compressed into a curved state and inserted into the annular magnetic gap, and the position of the cutout 13 and the like relative to the magnet is adjusted. At the same time, when the compressed state is released, the pole member 12 comes into contact with the inner wall of the magnet and expands, and is tightly fixed to the permanent magnet 2. Of course, using an adhesive is optional.
以上説明した如く、本発明によれば、振動型圧
縮機に使用されていたアルニコ磁石をフエライト
磁石に代えると共にその配置位置をハウジング中
心位置から環状磁気空隙内に移動せしめて断面積
の増大に対処している。そして永久磁石表面にも
うけるポール部材を板状体を彎曲せしめた形で構
成し、永久磁石の内壁面に当接する如き構成とし
ているため、組立て工程がきわめて簡単となる。 As explained above, according to the present invention, the alnico magnets used in the vibratory compressor are replaced with ferrite magnets, and the position of the magnets is moved from the center of the housing to the annular magnetic gap, thereby dealing with an increase in cross-sectional area. are doing. Since the pole member provided on the surface of the permanent magnet is formed by a curved plate-like member and is configured to abut against the inner wall surface of the permanent magnet, the assembly process is extremely simple.
第１図は振動型圧縮機の従来構成を示し、同図
ａは側断面図、同図ｂはＸ−X′からみた断面図、
第２図はアルニコ系磁石とフエライト系磁石との
特性を説明する説明図、第３図は本発明の前提と
して考慮された振動型圧縮機の側断面図、第４図
は本発明になる振動型圧縮機の要部のみを示す１
実施例側断面図であり、同図ａは磁気回路部のみ
を示す側断面図、同図ｂはＹ−Y′からみた断面
図、第５図はポール部材とフエライト磁石との取
付関係を示し、同図ａはポール部材の一部に切起
しをもうけた一実施例の斜視図、同図ｂはポール
部材に突起をもうけた他の一実施例の斜視図を
夫々示す。
図中２は永久磁石、３は内部鉄心、４は外部鉄
心、５は環状間隙、１２はポール部材、１３は切
起し、１４は突起、１５は鍔を表わしている。
Figure 1 shows the conventional configuration of a vibratory compressor, in which figure a is a side sectional view, figure b is a sectional view taken from X-X',
Fig. 2 is an explanatory diagram explaining the characteristics of alnico magnets and ferrite magnets, Fig. 3 is a side sectional view of a vibratory compressor considered as a premise of the present invention, and Fig. 4 is a vibration according to the present invention. 1 showing only the main parts of the mold compressor
FIG. 5 is a side sectional view of the embodiment; FIG. 5A is a side sectional view showing only the magnetic circuit section, FIG. , Figure a is a perspective view of an embodiment in which a part of the pole member is provided with a cut-and-bevel, and Figure b is a perspective view of another embodiment in which the pole member is provided with a protrusion. In the figure, 2 is a permanent magnet, 3 is an internal core, 4 is an external core, 5 is an annular gap, 12 is a pole member, 13 is a cut-and-raised part, 14 is a protrusion, and 15 is a collar.
Claims (1)
て同心円状に配設された外部鉄心、前記各内部鉄
心および外部鉄心とで形成される環状磁気間隙、
上記外部鉄心側に接してもうけられて該環状磁気
間隙に磁界を発生させる永久磁石、前記磁気間隙
に配置された振動コイル、および該振動コイルと
一体になつた支持体とを少なくともそなえ、前記
振動コイルに電力を給電することによつて前記振
動コイルと一体に形成される支持体を振動させる
ようにした振動型圧縮機において、上記内部鉄心
はその軸方向寸法が上記振動コイルの軸方向寸法
にくらべて小とされ、更に上記永久磁石をフエラ
イト磁石とすると共に、前記フエライト磁石を固
定手段を介して上記環状磁気間隙内に円周状に配
置してなり、かつ上記フエライト磁石は、その軸
方向寸法が上記振動コイルの軸方向寸法にくらべ
て大とされると共に該フエライト磁石の表面に強
磁性材からなるポール部材が設けられ、磁束を上
記内部鉄心に集束せしめるようにしたことを特徴
とする振動型圧縮機。 ２ 上記フエライト磁石は固定手段を介して上記
外部鉄心内周面に円周状に配置されてなり、弾性
材をもつて板状に構成された磁性材よりなる上記
ポール部材を彎曲した圧縮状態において上記環状
磁気間〓内に挿入した上で、上記円周状に配置さ
れたフエライト磁石周面に当接拡大せしめた状態
の下で内接面を密着させたことを特徴とする特許
請求の範囲第１項記載の振動型圧縮機。[Scope of Claims] 1. An inner core located at a central position, an outer core arranged concentrically with respect to the inner core, an annular magnetic gap formed by each of the inner cores and the outer core;
At least a permanent magnet that is provided in contact with the external iron core side and generates a magnetic field in the annular magnetic gap, a vibrating coil disposed in the magnetic gap, and a support integrated with the vibrating coil, In a vibratory compressor that vibrates a support formed integrally with the vibrating coil by supplying electric power to the coil, the internal core has an axial dimension that is equal to the axial dimension of the vibrating coil. The permanent magnet is a ferrite magnet, and the ferrite magnet is arranged circumferentially within the annular magnetic gap via a fixing means, and the ferrite magnet is The ferrite magnet is characterized in that its dimensions are larger than the axial dimensions of the vibrating coil, and a pole member made of a ferromagnetic material is provided on the surface of the ferrite magnet to focus magnetic flux on the internal iron core. Vibratory compressor. 2. The ferrite magnets are arranged circumferentially on the inner peripheral surface of the outer core through fixing means, and the pole member made of a magnetic material having a plate shape with an elastic material is bent and compressed. Claims characterized in that the inscribed surface is brought into close contact with the circumferential surface of the ferrite magnet arranged in a circumferential manner while being inserted into the annular magnetic space and expanded to contact the circumferential surface of the ferrite magnet. The vibratory compressor according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11657479A JPS5641470A (en) | 1979-09-11 | 1979-09-11 | Vibration-type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11657479A JPS5641470A (en) | 1979-09-11 | 1979-09-11 | Vibration-type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5641470A JPS5641470A (en) | 1981-04-18 |
| JPH0112950B2 true JPH0112950B2 (en) | 1989-03-02 |
Family
ID=14690475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11657479A Granted JPS5641470A (en) | 1979-09-11 | 1979-09-11 | Vibration-type compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5641470A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002035095A1 (en) * | 2000-10-25 | 2002-05-02 | Sawafuji Electric Co., Ltd. | Vibrating compressor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505912A (en) * | 1972-12-07 | 1975-01-22 | ||
| JPS5240804A (en) * | 1975-09-27 | 1977-03-30 | Katsumi Ito | Voice coil type pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4970504U (en) * | 1972-10-03 | 1974-06-19 |
-
1979
- 1979-09-11 JP JP11657479A patent/JPS5641470A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505912A (en) * | 1972-12-07 | 1975-01-22 | ||
| JPS5240804A (en) * | 1975-09-27 | 1977-03-30 | Katsumi Ito | Voice coil type pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002035095A1 (en) * | 2000-10-25 | 2002-05-02 | Sawafuji Electric Co., Ltd. | Vibrating compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5641470A (en) | 1981-04-18 |
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