JPH03994A - Closed type compressor and manufacture thereof and refregerator using same - Google Patents

Closed type compressor and manufacture thereof and refregerator using same

Info

Publication number
JPH03994A
JPH03994A JP13467289A JP13467289A JPH03994A JP H03994 A JPH03994 A JP H03994A JP 13467289 A JP13467289 A JP 13467289A JP 13467289 A JP13467289 A JP 13467289A JP H03994 A JPH03994 A JP H03994A
Authority
JP
Japan
Prior art keywords
paint
hermetic compressor
heat dissipation
case
heat
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
Application number
JP13467289A
Other languages
Japanese (ja)
Inventor
Hiroaki Hatake
裕章 畠
Nobuo Abe
信雄 阿部
Kouji Nariyoshi
成好 巧次
Nobuo Kinugawa
衣川 信男
Akira Shibata
晃 柴田
Kazuo Ikeda
和雄 池田
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13467289A priority Critical patent/JPH03994A/en
Publication of JPH03994A publication Critical patent/JPH03994A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008Hermetic pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10Outer members for co-operation with rotary pistons; Casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F04C18/3564Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04Heating; Cooling; Heat insulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00Manufacture
    • F04C2230/90Improving properties of machine parts
    • F04C2230/91Coating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/30Casings or housings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To increase the heat radiation area of a closed case so as to improve the effect by coating the outer face of the case with a paint in which with heat discharge pieces are mixed to provide the heat discharge means comprising the coated film with uneveness. CONSTITUTION:A closed compressor has in its closed case 3 a motor element, a compression element driven thereby, and oil therefor. The outer surface of the case 3 is coated with a paint 5 mixed with metal chips 4 to make the sur face rough with uneveness. Namely, the heat radiating means comprising the coated film with the uneveness on the outer surface of the closed case 3. The coated paint 5 where the heat radiation chips 4 of 30 - 70 capacity % is mixed in as the heat radiation means is applied and hardened, thereby the film of which heat radiation chips protrude on the coated face is formed. It is thus possible for the chips 4 to serve as a radiation fin and increase the heat radia tion area of the case 3.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、例えば電気冷蔵庫及び空気調和機等の冷凍機
に供する密閉形圧縮機及びその製造方法とそれを用いた
冷凍機に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hermetic compressor for use in refrigerators such as electric refrigerators and air conditioners, a manufacturing method thereof, and a refrigerator using the same.

〔従来の技術〕[Conventional technology]

冷凍機の圧縮機は、最近小型密閉化する傾向にあり、温
度上昇による効率低下を解消することが重要な課題とさ
れ、効果的に熱を外部に放出するための種々の提案がな
されている。例えば、圧縮機ケースの外表面に熱輻射の
大きな塗料を塗布するとか、その他セラミックスや多孔
質のコーテング被膜を被覆するもの、あるいは、防音と
放熱効果との両者をねらったものとして第1N目にメラ
ミン系の合成樹脂膜から成る振動吸収層を被覆し、第2
層として、金属片を接着剤を用いランダムな方向に積層
して成る放熱層との2重層から成るものなどがある。こ
の種の圧縮機に関連するものとして、例えば特開昭60
−150487号、実開昭53−113406号を挙げ
ることができる。
Refrigerator compressors have recently become smaller and hermetically sealed, and resolving the loss of efficiency due to temperature rise has become an important issue, and various proposals have been made to effectively release heat to the outside. . For example, applying paint with high heat radiation to the outer surface of the compressor case, covering it with other ceramics or porous coatings, or aiming at both soundproofing and heat dissipation effects is the first N. Covered with a vibration absorbing layer made of a melamine-based synthetic resin film, the second
The layer may be a double layer including a heat dissipation layer formed by laminating metal pieces in a random direction using an adhesive. As related to this type of compressor, for example, JP-A-60
-150487 and Utility Model Application Publication No. 53-113406.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記のような放熱効果を有する被覆層を、圧縮機ケース
表面に形成することにより、確かにそれなりの効果は認
められるが、実用上さらに向上させる必要があり、また
、被覆層形成に当たっては防錆対策も必要である。
By forming a coating layer with heat dissipation effect as described above on the surface of the compressor case, it is certainly effective to some extent, but it needs to be further improved in practical terms, and when forming the coating layer, rust prevention Countermeasures are also necessary.

つまり、前述のアルミ等の金属片を樹脂でケース表面に
積層固着する場合には、一般にケース表面に樹脂を塗布
し、塗膜が湿潤な間に金属片を散布し、付着させておき
、塗膜を硬化することにより、金属片をケース表面に固
着するものである。
In other words, when laminating and fixing metal pieces such as aluminum to the case surface with resin, the resin is generally applied to the case surface, the metal pieces are scattered while the coating is wet, and the metal pieces are left to adhere. By curing the film, the metal piece is fixed to the case surface.

したがって、金属片はその一部が樹脂にて固着されてい
るのみであるため、付着力が十分でなく剥離し易く、ま
た、金属片の大部分は露出しているため錆び易いという
問題があった。
Therefore, since the metal pieces are only partially fixed with resin, there is a problem that the adhesion is not strong enough and they tend to peel off, and since most of the metal pieces are exposed, they are prone to rust. Ta.

本発明は、かかる問題点を解消しようというものであり
、その第1の目的は放熱効果が十分で信頼性の高い改良
された密閉形圧縮機を、第2の目的は、その製造方法を
、そして第3の目的は、かかる圧縮機を備えた冷凍機を
、それぞれ提供することにある。
The present invention aims to solve such problems, and its first purpose is to provide an improved hermetic compressor with sufficient heat dissipation effect and high reliability, and its second purpose is to provide a method for manufacturing the compressor. A third object is to provide a refrigerator equipped with such a compressor.

〔課題を解決するための手段〕[Means to solve the problem]

上記第1の目的は、 (1)密閉ケース内に電動要素と、この電動要素により
駆動される圧縮要素と、圧縮機油とを収容して成る密閉
型圧縮機であって、前記密閉ケース外表面に凹凸形状を
有する塗膜から成る放熱手段が設けられ、前記放熱手段
として、30〜70容量%の放熱片を混入した塗料を塗
布、硬化することにより少なくとも前記放熱片の一部を
塗膜面に突出させた塗膜を形成して成る密閉型圧縮機に
より、 (2)上記放熱片を金属、ガラス繊維、黒鉛、砂及びセ
ラミックスの少なくとも一種で構成すると共に上記塗膜
を構成する塗料を、チヂミ塗料、ハンマートーン塗料、
レザートーン塗料及び樹脂ビーズ又は変成ゴムビーズを
配合したウレタン樹脂塗料から成る群から選択されるい
ずれか一種の塗料と成した上記(1)記載の密閉型圧縮
機により、そして (3)上記金属から成る放熱片が、銅、アルミニウム及
び鉄から成る群から選択される少なくとも一種の金属を
含む上記(2)記載の密閉型圧縮機により、達成される
(1) A hermetic compressor comprising an electric element, a compression element driven by the electric element, and compressor oil housed in a hermetically sealed case, the outer surface of the hermetically sealed case being A heat dissipation means consisting of a coating film having an uneven shape is provided, and as the heat dissipation means, at least a part of the heat dissipation strips are coated on the coated film surface by applying and curing a paint mixed with 30 to 70% by volume of heat dissipation pieces. (2) The heat dissipating piece is made of at least one of metal, glass fiber, graphite, sand, and ceramics, and the paint constituting the coating film is Chijimi paint, Hammertone paint,
By the hermetic compressor according to (1) above, which is made of any one kind of paint selected from the group consisting of a leather tone paint and a urethane resin paint blended with resin beads or modified rubber beads, and (3) made of the metal mentioned above. This is achieved by the hermetic compressor described in (2) above, in which the heat dissipation piece includes at least one metal selected from the group consisting of copper, aluminum, and iron.

なお、上記チヂミ塗料は、桐油を使用し塗装表面をチリ
メン状に凹凸にさせるものである。また、ハンマートー
ン塗料は、メラミン樹脂又はスチレン化アルキド樹脂が
主成分で、ハンマー打痕状の塗装表面を実現するもの、
さらにまた、レザートーン塗料は、ビニール樹脂を主体
としたレザー状の塗装表面が得られるものである。
Note that the above-mentioned bubbly paint uses tung oil to make the painted surface uneven in the shape of chili peppers. In addition, hammer tone paints are mainly composed of melamine resin or styrenated alkyd resin, and create a hammer-marked painted surface.
Furthermore, the leather tone paint is one that provides a leather-like painted surface mainly made of vinyl resin.

上記第2の目的は、 (4)密閉ケース内に電動要素と、この電動要素により
駆動される圧縮要素と、圧縮機油とを収容して成る密閉
型圧縮機の前記密閉ケース外表面に、チヂミ塗料、ハン
マートーン塗料、レザートーン塗料及び樹脂ビーズ又は
変成ゴムビーズを配合したウレタン樹脂塗料から成る群
から選択されるいずれか一種の塗料に30〜70容量%
の放熱片を混入した塗料を塗布する工程と、前記塗布に
より形成された塗膜を硬化する工程とを有して成る密閉
型圧縮機の製造方法により、また (5)上記放熱片を混入した塗料を塗布する工程として
、吹き付け塗布を行う上記(4)記載の密閉型圧縮機の
製造方法により、達成される。
(4) The hermetic compressor has an electric element, a compression element driven by the electric element, and compressor oil housed in the airtight case. 30 to 70% by volume of any type of paint selected from the group consisting of paint, hammer tone paint, leather tone paint, and urethane resin paint blended with resin beads or modified rubber beads.
A method for manufacturing a hermetic compressor comprising the steps of: applying a paint mixed with a heat dissipating piece; and curing the coating film formed by the application; and (5) containing the heat dissipating piece mixed in. This is achieved by the method for manufacturing a hermetic compressor described in (4) above, in which spray coating is performed as the step of applying the paint.

そして上記第3の目的は、 (6)密閉型圧縮機の吐出管と吸込管との間に少なくと
も凝縮器、減圧装置、蒸発器を順次接続して冷凍サイク
ルを構成して成る冷凍機において、前記密閉型圧縮機を
上記(1)、(2)もしくは(3)記載の密閉型圧縮機
で構成した冷凍機により、更に具体的には。
The third object is as follows: (6) A refrigerator in which a refrigeration cycle is constructed by sequentially connecting at least a condenser, a pressure reducing device, and an evaporator between a discharge pipe and a suction pipe of a hermetic compressor, More specifically, by a refrigerator in which the hermetic compressor is the hermetic compressor described in (1), (2), or (3) above.

(7)上記(6)記載の冷凍機を備えた冷蔵庫により、
そして (8)上記(6)記載の冷凍機を備えた空気調和機によ
り、達成される。
(7) With the refrigerator equipped with the refrigerator described in (6) above,
and (8) achieved by an air conditioner equipped with the refrigerator described in (6) above.

〔作用〕[Effect]

圧縮機の熱収支は、下記の一般式で表される。 The heat balance of the compressor is expressed by the following general formula.

G−h ; + 0.86W = K 5As(Ts−
Ta) 十〇−h o −(]、)但し、Ksはケース
表面の熱伝達率(Kcal/m2h’C)、Asはケー
ス表面積(m2)、Tsはケース表面温度(’C)、T
aは周囲外気温度(℃)、Gは冷媒流量(kg/h)、
h、は圧縮機吸込みガスのエンタルピ(Kcal/kg
)、hoは吐出冷媒のエンタルピ(Kcal/kg)、
Wは圧縮機入力(w)をそれぞれ示す。
G-h; + 0.86W = K5As(Ts-
Ta) 10-h o -(],) However, Ks is the heat transfer coefficient of the case surface (Kcal/m2h'C), As is the case surface area (m2), Ts is the case surface temperature ('C), T
a is the ambient outside temperature (℃), G is the refrigerant flow rate (kg/h),
h, is the enthalpy of the compressor suction gas (Kcal/kg
), ho is the enthalpy of the discharged refrigerant (Kcal/kg),
W indicates compressor input (w), respectively.

式(1)の左辺は、入熱量、右辺は、流出熱量である。The left side of equation (1) is the amount of heat input, and the right side is the amount of heat released.

一般に、自然冷却(強制冷却がない場合)においては、
Ksは10KcaL/m” h ’C程度であるが、ケ
ース外表面に塗料により固着された放熱片のフィン効果
により、熱伝達率Ksは見かけ上、2〜3倍に増加する
。その結果、入熱量は変化せずほぼ一定なので、ケース
表面温度Tsは低下し、吐出ガスエンタルピh0も小さ
くなる方向に移動し、吐出ガス温度も低下する。このた
め、圧縮機密閉ケース内に固着されている圧縮要素及び
電動要素、さらに密閉ケース内に停溜している冷凍機油
の温度も低下させることができ、結果として、圧縮機の
異常過熱を防止することができる。塗料中に分散される
放熱片の量は、前述のごとく、塗料に対し容量比で30
%〜70%が好ましい。30%より少ないと十分な放熱
効果が得られず、また、70%より多いと、十分な接着
固定が得られず好ましくない。
Generally, in natural cooling (when there is no forced cooling),
Ks is about 10 KcaL/m''h'C, but due to the fin effect of the heat dissipation piece fixed to the outer surface of the case with paint, the heat transfer coefficient Ks apparently increases by 2 to 3 times. Since the amount of heat does not change and is almost constant, the case surface temperature Ts decreases, the discharge gas enthalpy h0 also moves in the direction of decreasing, and the discharge gas temperature also decreases. It is possible to lower the temperature of the compressor, electric element, and even the refrigerating machine oil accumulated in the sealed case, and as a result, it is possible to prevent abnormal overheating of the compressor. As mentioned above, the amount is 30% by volume relative to the paint.
% to 70% is preferred. If it is less than 30%, a sufficient heat dissipation effect cannot be obtained, and if it is more than 70%, sufficient adhesive fixation cannot be obtained, which is not preferable.

〔実施例〕〔Example〕

以下図面により、本発明の一実施例を説明する。 An embodiment of the present invention will be described below with reference to the drawings.

第1図は、密閉形圧縮機14の縦断面とそれに接続する
冷凍機の冷凍サイクルを模式的に示した装置の概略説明
図、そして第2図(a)は第1図の圧縮機の横断面を、
第2図(b)は圧縮機14の密閉ケース3のB部におけ
る拡大部分断面図を示したものである。
FIG. 1 is a schematic explanatory diagram of the device schematically showing a vertical section of the hermetic compressor 14 and the refrigeration cycle of the refrigerator connected to it, and FIG. 2(a) is a cross-sectional view of the compressor shown in FIG. 1. the face,
FIG. 2(b) shows an enlarged partial sectional view of section B of the closed case 3 of the compressor 14.

第1図により全体構成を説明すると、密閉形圧縮機14
の密閉ケース3の表面には、金属片4の混入した塗料5
が塗布されており、表面形状は凹凸状に粗面化された形
状である。密閉ケース3内には、電動要素2及びこの電
動要素2によって駆動される圧縮要素1が収納されてい
る。
To explain the overall configuration with reference to FIG. 1, the hermetic compressor 14
The surface of the sealed case 3 is coated with paint 5 mixed with metal pieces 4.
is coated, and the surface has a roughened shape. Inside the closed case 3, an electric element 2 and a compression element 1 driven by the electric element 2 are housed.

上記構成から成る圧縮機は、吐出管9より、凝縮器11
.減圧装置12、蒸発器13と共に環状の冷蔵庫用冷凍
サイクルを構成している。
The compressor configured as described above has a discharge pipe 9 connected to a condenser 11.
.. Together with the pressure reducing device 12 and the evaporator 13, it constitutes an annular refrigerator refrigeration cycle.

第2図により、金属片4が塗料5により密閉ケース3に
固着している様子につき詳述すると、金属片4は表面全
体が樹脂塗料で覆われており、その一部は外部に突出し
突起を形成してケース3の表面の凹凸を構成している。
Referring to FIG. 2, we will explain in detail how the metal piece 4 is fixed to the sealed case 3 by the paint 5.The entire surface of the metal piece 4 is covered with resin paint, and a part of it protrudes outward and has a protrusion. This forms the unevenness on the surface of the case 3.

そして、他の一部は樹脂塗膜5の中に強固に付着固定さ
れている。したがって、金属片は安定にケース表面に植
設されているため剥離の問題はなく、また、突起の表面
が塗膜で覆われていることから錆び難い構造となってい
る。なお、かかる表面凹凸構造を有する塗膜面の形成は
5予め金属片を所定量塗料液中に分散混入しておき、こ
の塗料をケース表面に吹き付け塗料することにより行っ
た。
The other part is firmly adhered and fixed in the resin coating film 5. Therefore, since the metal pieces are stably planted on the case surface, there is no problem of peeling, and since the surfaces of the protrusions are covered with a coating film, the structure is resistant to rust. The coating surface having such a surface unevenness structure was formed by dispersing and mixing a predetermined amount of metal pieces into the coating liquid in advance, and spraying this coating onto the case surface.

再度第1図に戻って、動作の説明をすると、圧縮機要素
1から吐出された吐出冷媒ガスは、密閉ケース3内から
吐出管9を経て、凝縮器11、減圧装置12、蒸発器1
3を通過して再び圧縮要素1に吸入される。密閉ケース
3内部は、高温の吐出冷媒ガスによって充満しており、
さらに電動要素2の発熱が加わり表面温度は高温になる
。従来の塗料を塗布した平滑な塗装面をもつ密閉ケース
においては、表面の熱伝達率Ksは自然冷却の場合は約
10Kcal/m2h ℃と小さく、密閉ケース表面か
らの放熱量も50〜60Kcal/hと小さいので、密
閉ケース表面温度は約90〜100℃と高温である。
Returning to FIG. 1 again, to explain the operation, the discharged refrigerant gas discharged from the compressor element 1 passes from the inside of the sealed case 3 through the discharge pipe 9 to the condenser 11, the pressure reducing device 12, and the evaporator 1.
3 and is sucked into the compression element 1 again. The inside of the sealed case 3 is filled with high temperature discharged refrigerant gas.
Furthermore, heat generated by the electric element 2 is added, and the surface temperature becomes high. In a sealed case with a smooth painted surface coated with conventional paint, the surface heat transfer coefficient Ks is as small as approximately 10 Kcal/m2h °C in the case of natural cooling, and the amount of heat dissipated from the sealed case surface is also 50 to 60 Kcal/h. Because of its small size, the surface temperature of the sealed case is as high as about 90 to 100°C.

一方、本発明の金属片4を混入した塗料5を塗布した密
閉ケース3においては、塗装面を凹凸にし、放熱面積を
大きくし、又個々の金属片4が放熱フィンの役割を果た
すため、密閉ケース3の外表面の熱伝達率Ksは約2〜
3倍の20〜30Kcal/m”h’C程度に大幅に向
上し、放熱量も増加するため、密閉ケース3の表面温度
は、約5〜10deg低下する。
On the other hand, in the sealed case 3 coated with the paint 5 mixed with the metal pieces 4 of the present invention, the painted surface is made uneven to increase the heat dissipation area, and since the individual metal pieces 4 play the role of heat dissipation fins, the sealed case 3 is sealed. The heat transfer coefficient Ks of the outer surface of case 3 is approximately 2~
The surface temperature of the sealed case 3 is reduced by about 5 to 10 deg because the temperature is significantly improved to about 20 to 30 Kcal/m''h'C, which is three times as much, and the amount of heat dissipated is also increased.

その結果、密閉ケース3内の圧縮要素1及び電動要素2
、さらに密閉ケース3内の吐出冷媒ガス温度も同様に1
5deg程度低下する。したがって、冷媒圧縮に際して
、圧縮要素1から冷媒への加熱が抑制されるので、最も
効率の良い等温圧縮に近づける効果があり、冷媒ガス圧
縮に要する仕事量を軽減することができる。また、上記
冷凍サイクルを空気調和機とした場合には、圧縮要素1
の温度低下により、冷媒吸入重量の増加がなされ、冷房
能力の増加が見込まれる。この結果、圧縮機の効率は、
約3%増加する。同時に、冷凍機油6自身をも、高温に
なることを防止し、安定した潤滑性能が得られる。
As a result, the compression element 1 and the electric element 2 inside the closed case 3
, Furthermore, the temperature of the discharged refrigerant gas in the sealed case 3 is also 1.
It decreases by about 5 degrees. Therefore, during refrigerant compression, heating from the compression element 1 to the refrigerant is suppressed, which has the effect of approaching the most efficient isothermal compression and reduces the amount of work required for refrigerant gas compression. Moreover, when the above-mentioned refrigeration cycle is used as an air conditioner, the compression element 1
As the temperature decreases, the weight of refrigerant sucked will increase, and an increase in cooling capacity is expected. As a result, the efficiency of the compressor is
This will increase by approximately 3%. At the same time, the refrigerating machine oil 6 itself is also prevented from becoming high temperature, and stable lubrication performance can be obtained.

なお、本実施例では放熱片として金属片の例を示したが
、その他ガラス繊維、黒鉛、砂及びセラミックス等を塗
料に混入しても良いことは云うまでもない。
In this embodiment, a metal piece is used as a heat dissipation piece, but it goes without saying that other materials such as glass fiber, graphite, sand, ceramics, etc. may be mixed into the paint.

〔効果〕〔effect〕

上述のとおり、本発明によれば放熱片を混入した塗料を
密閉形圧縮機のケースに塗布することにより、表面を凹
凸状に粗面化し、凸部に放熱フィンの役割をもたせるこ
とができ、しかも凸部を形成する放熱片が塗膜により強
固に付着しているので剥離の問題はなく、信頼性の高い
放熱効果の大きな密閉形圧縮機を実現することができる
。このように本発明によればケースの放熱能力が大幅に
向上するので、圧縮要素、@動要素、冷凍機油の温度上
昇を抑制し、圧縮機における圧縮仕事量を軽減し、また
冷媒吸入重量の増加をもたらし、かつ冷凍機油の高温に
よる劣化を防止する優れた効果をもたらすものである。
As described above, according to the present invention, by applying a paint mixed with heat dissipation pieces to the case of a hermetic compressor, the surface can be roughened into an uneven shape, and the convex portions can serve as heat dissipation fins. Moreover, since the heat dissipating pieces forming the convex portions are firmly adhered to the coating film, there is no problem of peeling, and a hermetic compressor with high reliability and a large heat dissipation effect can be realized. As described above, according to the present invention, the heat dissipation ability of the case is greatly improved, so the temperature rise of the compression element, the moving element, and the refrigerating machine oil is suppressed, the compression work in the compressor is reduced, and the weight of the refrigerant sucked is reduced. It brings about an excellent effect of preventing deterioration of refrigerating machine oil due to high temperatures.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、本発明の一実施例を示す密閉形圧縮機の縦断
面構造とそれに接続される冷凍サイクルを模式的に示し
た冷凍機の概略説明図、第2図(a)は、圧縮機の横断
面構造を、そして第2図(b)は第2図(a)のB部の
拡大断面図をそれぞれ示したものである。 1・・・圧縮要素 3・・・密閉ケース 5・・・塗料 9・・・吐出管 11・・・凝縮器 13・・・蒸発器
FIG. 1 is a schematic explanatory diagram of a refrigerator, schematically showing the longitudinal cross-sectional structure of a hermetic compressor and the refrigeration cycle connected thereto, showing one embodiment of the present invention, and FIG. The cross-sectional structure of the machine is shown, and FIG. 2(b) is an enlarged sectional view of section B in FIG. 2(a). 1... Compression element 3... Sealed case 5... Paint 9... Discharge pipe 11... Condenser 13... Evaporator

Claims (1)

【特許請求の範囲】 1、密閉ケース内に電動要素と、この電動要素により駆
動される圧縮要素と、圧縮機油とを収容して成る密閉型
圧縮機であって、前記密閉ケース外表面に凹凸形状を有
する塗膜から成る放熱手段が設けられ、前記放熱手段と
して、30〜70容量%の放熱片を混入した塗料を塗布
、硬化することにより少なくとも前記放熱片の一部を塗
膜面に突出させた塗膜を形成して成る密閉型圧縮機。 2、上記放熱片を金属、ガラス繊維、黒鉛、砂及びセラ
ミックスの少なくとも一種で構成すると共に上記塗膜を
構成する塗料を、チヂミ塗料、ハンマートーン塗料、レ
ザートーン塗料及び樹脂ビーズ又は変成ゴムビーズを配
合したウレタン樹脂塗料から成る群から選択されるいず
れか一種の塗料と成した請求項1記載の密閉型圧縮機。 3、上記金属から成る放熱片が、銅、アルミニウム及び
鉄から成る群から選択される少なくとも一種の金属を含
む請求項2記載の密閉型圧縮機。 4、密閉ケース内に電動要素と、この電動要素により駆
動される圧縮要素と、圧縮機油とを収容して成る密閉型
圧縮機の前記密閉ケース外表面に、チヂミ塗料、ハンマ
ートーン塗料、レザートーン塗料及び樹脂ビーズ又は変
成ゴムビーズを配合したウレタン樹脂塗料から成る群か
ら選択されるいずれか一種の塗料に30〜70容量%の
放熱片を混入した塗料を塗布する工程と、前記塗布によ
り形成された塗膜を硬化する工程とを有して成る密閉型
圧縮機の製造方法。 5、上記放熱片を混入した塗料を塗布する工程として、
吹き付け塗布を行う請求項4記載の密閉型圧縮機の製造
方法。 6、密閉型圧縮機の吐出管と吸込管との間に少なくとも
凝縮器、減圧装置、蒸発器を順次接続して冷凍サイクル
を構成して成る冷凍機において、前記密閉型圧縮機を請
求項1、2もしくは3記載の密閉型圧縮機で構成した冷
凍機。 7、請求項6記載の冷凍機を備えた冷蔵庫。 8、請求項6記載の冷凍機を備えた空気調和機。
[Claims] 1. A hermetic compressor comprising an electric element, a compression element driven by the electric element, and compressor oil housed in a hermetically sealed case, wherein the external surface of the hermetically sealed case is uneven. A heat dissipation means consisting of a paint film having a shape is provided, and as the heat dissipation means, at least a part of the heat dissipation pieces protrudes from the coating surface by applying and curing a paint mixed with 30 to 70% by volume of heat dissipation pieces. A hermetic compressor made by forming a coating film. 2. The heat dissipating piece is made of at least one of metal, glass fiber, graphite, sand, and ceramics, and the paint that makes up the coating film is a combination of buoyant paint, hammer tone paint, leather tone paint, and resin beads or modified rubber beads. 2. The hermetic compressor according to claim 1, wherein the hermetic compressor is made of any one kind of paint selected from the group consisting of urethane resin paints. 3. The hermetic compressor according to claim 2, wherein the heat dissipation piece made of metal contains at least one metal selected from the group consisting of copper, aluminum, and iron. 4. A hermetic compressor comprising an electric element, a compression element driven by the electric element, and compressor oil housed in a hermetically sealed case, and the outer surface of the hermetically sealed case is coated with buoyant paint, hammer tone paint, or leather tone paint. A step of applying a paint in which 30 to 70% by volume of a heat dissipating piece is mixed into any one kind of paint selected from the group consisting of a paint and a urethane resin paint blended with resin beads or modified rubber beads; A method for manufacturing a hermetic compressor, comprising a step of curing a coating film. 5. As a step of applying the paint mixed with the heat dissipation piece,
5. The method for manufacturing a hermetic compressor according to claim 4, wherein spray coating is performed. 6. A refrigerating machine in which a refrigeration cycle is constructed by sequentially connecting at least a condenser, a pressure reducing device, and an evaporator between a discharge pipe and a suction pipe of the hermetic compressor, wherein the hermetic compressor according to claim 1 A refrigerator comprising the hermetic compressor according to , 2 or 3. 7. A refrigerator comprising the refrigerator according to claim 6. 8. An air conditioner comprising the refrigerator according to claim 6.
JP13467289A 1989-05-30 1989-05-30 Closed type compressor and manufacture thereof and refregerator using same Pending JPH03994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13467289A JPH03994A (en) 1989-05-30 1989-05-30 Closed type compressor and manufacture thereof and refregerator using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13467289A JPH03994A (en) 1989-05-30 1989-05-30 Closed type compressor and manufacture thereof and refregerator using same

Publications (1)

Publication Number Publication Date
JPH03994A true JPH03994A (en) 1991-01-07

Family

ID=15133870

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13467289A Pending JPH03994A (en) 1989-05-30 1989-05-30 Closed type compressor and manufacture thereof and refregerator using same

Country Status (1)

Country Link
JP (1) JPH03994A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100460673C (en) * 2004-04-28 2009-02-11 乐金电子(天津)电器有限公司 Compressor
CN103629114A (en) * 2012-08-22 2014-03-12 上海日立电器有限公司 Cylinder shell of rotor compressor
CN106368949A (en) * 2015-07-24 2017-02-01 东芝开利株式会社 Hermetic compressor and refrigeration cycle device
EP3492740A4 (en) * 2016-07-29 2019-12-11 Daikin Industries, Ltd. Compressor for refrigeration machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100460673C (en) * 2004-04-28 2009-02-11 乐金电子(天津)电器有限公司 Compressor
CN103629114A (en) * 2012-08-22 2014-03-12 上海日立电器有限公司 Cylinder shell of rotor compressor
CN106368949A (en) * 2015-07-24 2017-02-01 东芝开利株式会社 Hermetic compressor and refrigeration cycle device
JP2017025837A (en) * 2015-07-24 2017-02-02 東芝キヤリア株式会社 Hermetic compressor and refrigeration cycle device
EP3492740A4 (en) * 2016-07-29 2019-12-11 Daikin Industries, Ltd. Compressor for refrigeration machine

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