JPS59168285A - Hermetically closed coolant compressor - Google Patents
Hermetically closed coolant compressorInfo
- Publication number
- JPS59168285A JPS59168285A JP4066083A JP4066083A JPS59168285A JP S59168285 A JPS59168285 A JP S59168285A JP 4066083 A JP4066083 A JP 4066083A JP 4066083 A JP4066083 A JP 4066083A JP S59168285 A JPS59168285 A JP S59168285A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- compressor
- discharge valve
- state
- push
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/24—Bypassing
- F04B49/246—Bypassing by keeping open the outlet valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は冷凍、空調に使用される密閉形冷媒゛圧縮機に
係り、特に過熱、過負荷防止に好適な圧縮機に関するも
のである。 １５〔従来技術〕
第１図は従来の密閉形冷媒圧縮機（ロータリ・式）の一
部所面図を示す。図において１は密閉容器、２は圧縮要
素で該密閉容器の土部処配役・されたモータ（図示せず
）により駆動される。２０圧縮要素２はクランクシャフ
ト３．シリンダ４−該シリンダ内で偏心回転するローラ
７、該クランクシャフト３を軸支しシリンダ４の上、下
関“口を閉塞す上端面板５と下端面板６．圧縮室１３゜
を高圧室と低圧室に区画するベーン（図示せず）そして
下端面板６に取り付けられた吐出弁１１．。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a hermetic refrigerant compressor used in refrigeration and air conditioning, and particularly to a compressor suitable for preventing overheating and overload. 15 [Prior Art] Fig. 1 shows a partial view of a conventional hermetic refrigerant compressor (rotary type). In the figure, 1 is a closed container, and 2 is a compression element driven by a motor (not shown) which is connected to the bottom of the closed container. 20 compression element 2 is attached to the crankshaft 3. Cylinder 4 - A roller 7 that rotates eccentrically within the cylinder, an upper end face plate 5 and a lower end face plate 6 that pivotally support the crankshaft 3 and close the upper and lower ports of the cylinder 4. The compression chamber 13° is divided into a high pressure chamber and a low pressure chamber. a vane (not shown) and a discharge valve 11 attached to the lower end face plate 6.
リテーナ１２からなる。冷媒ガスは吸入ｖ８の吸゛入口
９から圧縮室１３に導入されて、クランクシ。It consists of a retainer 12. Refrigerant gas is introduced into the compression chamber 13 from the suction inlet 9 of the suction v8, and is then compressed by the crankshaft.
ヤフト３の回転により圧縮され、吐出口１ｏを通。It is compressed by the rotation of the shaft 3 and passes through the discharge port 1o.
って密閉容器１内に吐出され外部の冷凍サイグ）ルを循
環する。The water is discharged into the sealed container 1 and circulated through an external refrigerated pipe.
第２図は、第１図のＡ−Ａ断面図で吐出弁周。FIG. 2 is a sectional view taken along the line AA in FIG. 1, showing the circumference of the discharge valve.
囲の構造を示したものである。１４は弁押えであ。This figure shows the structure of the enclosure. 14 is a valve holder.
る。圧縮室内の圧力が吐出弁１１の周囲の圧力（。Ru. The pressure inside the compression chamber is the pressure around the discharge valve 11 (.
密閉容器内圧力）より低い状態では（α）図のよう１５
に吐出弁１１は閉じられており、圧縮室内の圧力・が上
昇してくると（ｈ）図に矢印で図示するように・圧力差
で吐出弁を押上げ密閉容器で内に吐出さ・れる。In a state lower than (internal pressure of a closed container), (α)15 as shown in the figure.
The discharge valve 11 is closed, and when the pressure inside the compression chamber rises, the pressure difference pushes up the discharge valve and discharges into the airtight container as shown by the arrow in figure (h). .
このように構成された従来の密閉形冷媒圧卿〇機には以
下に記すような欠点があった。 ′圧縮機が過負荷
−過熱運転されると温度上昇。The conventional closed type refrigerant pressurizer configured as described above had the following drawbacks. 'If the compressor is operated under overload and overheating, the temperature will rise.
により潤滑油が劣化しカーボンスラッジを生じζ潤滑不
良や異常摩耗の原因となるが、吐出冷媒゛ガスの温度を
直接感知し圧縮運転を停止させる５簡易で適切な方法が
ないため、密閉容器表面に。This causes the lubricating oil to deteriorate and generate carbon sludge, which causes poor lubrication and abnormal wear. To.
温度と電流値で作動するパイ、メタル式の過負荷。Pi, metal type overload that operates based on temperature and current value.
防止リレーを設け、さらに吐出ガス圧力を検知。A prevention relay is installed and the discharge gas pressure is also detected.
し所定の圧力以上になったら圧縮運転を停止させる高圧
カットスイッチを配設して間接的に過０熱、過負荷防止
を行っていた。However, a high-pressure cut switch that stops compression operation when the pressure exceeds a predetermined level is installed to indirectly prevent overheating and overload.
本発明の目的は、吐出冷媒ガスの温度を直接。 The purpose of the present invention is to directly control the temperature of the discharged refrigerant gas.
検知して圧縮機の過熱、過負荷防止を実・現でき。Detects and prevents compressor overheating and overload.
る密閉形冷媒圧縮機を提供することにある。 １５〔発
明の概要〕
本発明の特徴は、低温でマルテンサイトの状態にある金
属材料を加熱すると変形前の元の形・に戻るという形状
記憶効果を利用し、吐出冷媒・ガス温度を直接感知して
吐出弁をリフトさせ圧２０縮−非圧縮運転を制御し、圧
縮機の過熱、過負。An object of the present invention is to provide a hermetic refrigerant compressor. 15 [Summary of the Invention] The feature of the present invention is that the temperature of the discharged refrigerant/gas can be directly sensed by utilizing the shape memory effect, in which when a metal material in a martensite state at low temperature is heated, it returns to its original shape before deformation. The discharge valve is lifted to control the compression-non-compression operation to prevent overheating or overloading of the compressor.
荷保護を可能にした密閉形冷媒圧縮機にある。。This is a hermetic refrigerant compressor that enables load protection. .
以下、本発明を実施例によって説明する。 。 Hereinafter, the present invention will be explained by examples. .
第３図は、本発明の一実施例に係る密閉形冷媒圧縮機の
吐出弁周囲の断面構造図である（第。FIG. 3 is a cross-sectional structural diagram around the discharge valve of the hermetic refrigerant compressor according to an embodiment of the present invention (Fig. 3).
１図のＡ−Ａ断面に相当）。ここで第１図及び第２図と
同一番号を付したものは同一部分で同。(corresponds to the A-A cross section in Figure 1). Here, parts with the same numbers as in Figures 1 and 2 are the same.
−の作用をなすものである。第３図において、１５は例
えばＩ’ｉ −Ｎｉ合金のような形状記憶金属０で作ら
れた押上板で、高温状態（１２０℃程度）。- It has the effect of -. In FIG. 3, 15 is a push-up plate made of shape memory metal 0, such as I'i-Ni alloy, and is in a high temperature state (approximately 120° C.).
で直伸形状を記憶させたものである。１６は押上板１５
の取付ボルトである。The straight-stretched shape is stored in memory. 16 is a push-up plate 15
This is the mounting bolt.
とのよ５に構成された密閉形冷媒圧縮機の過。The hermetic refrigerant compressor configured in Tonoyo 5.
熱、過負荷保護動作を次に説明する。第３図（呻５は通
常の圧縮運転状態を示すもので、吐出弁１１・周囲の雰
囲気（冷媒ガス）温度は１２０℃以下の・温度に保たれ
ているため押上板１５は形状記憶効・果を発揮せず吐出
弁１１に押され（必要な際はバ・イアスバネカを作用さ
せる）て下方にたわんだ２０状態となっている。従って
、吐出弁１１は第２図″において説明したように通常の
圧縮作用をなす・ことになる。しかし、吐出圧力が高く
又吸込ガ・スが過熱状態になっている時や過負荷運転の
場。The heat and overload protection operation will be explained next. FIG. 3 (No. 5 shows the normal compression operation state. Since the temperature of the discharge valve 11 and the surrounding atmosphere (refrigerant gas) is maintained at a temperature of 120°C or less, the push-up plate 15 has a shape memory effect. It is in the state 20 where it is pushed downward by the discharge valve 11 without exerting any effect (the bias spring is applied when necessary) and is bent downward.Therefore, the discharge valve 11 is in the state 20 as explained in Fig. 2''. Normal compression will occur.However, when the discharge pressure is high and the suction gas is overheated, or during overload operation.
合は温度上昇し、吐出弁周囲の温度は１２０″’ｃＢ上
となる。この結果、押上板１５は形状記憶効果を発揮し
直伸形状となり（ｂ）のように吐出弁１１をリフトさせ
る。この状態では、圧縮空間は吹抜は状態となって圧縮
作用を行わなくなり低温の。If this happens, the temperature rises, and the temperature around the discharge valve becomes 120''cB higher.As a result, the push-up plate 15 exhibits a shape memory effect and becomes a straight-stretched shape, lifting the discharge valve 11 as shown in (b). In this state, the compression space is in the atrium state and does not perform any compression action and is at a low temperature.
冷媒ガスが矢印のように流出して冷却し、圧縮。Refrigerant gas flows out in the direction of the arrow, cools and compresses.
機の過熱、過負荷運転が自動的に防止させるよ。Automatically prevents machine overheating and overload operation.
うになる。I'm going to growl.
第４図は、本発明の他の実施例を示した断面。FIG. 4 is a cross section showing another embodiment of the present invention.
図で、第３図の実施例に加えて押上板１５にヒー゛り等
の加熱器１７が装着されている。 １５このよ
うに構成することにより、過熱、過負・荷防止効果に加
えて、ヒータ１７に通電すること・により任意に形状記
憶効果を発揮させて非圧縮・連転状態を作り出すことが
可能となる。この結・果、始動前にヒータに通電してお
くことにょ弾〇起動時に圧縮運転を行わなくなり起動負
荷を大。In the figure, in addition to the embodiment shown in FIG. 3, a heater 17 such as a heater is attached to the push-up plate 15. 15 With this configuration, in addition to the effect of preventing overheating, overload, and load, it is also possible to create a non-compressible, continuous rotation state by arbitrarily exerting a shape memory effect by energizing the heater 17. Become. As a result, it is recommended to energize the heater before starting. Compression operation will not be performed at startup, increasing the startup load.
巾に低減することが可能になり、モータの起動。It becomes possible to reduce the width and start the motor.
トルクを増加するために一般的に使用していた。Commonly used to increase torque.
キャパシタ等の電気部品を省略することが可能゛になる
。又、起動ミスによるモータの拘束も防５ぐことかでき
る。It becomes possible to omit electrical parts such as capacitors. Furthermore, it is possible to prevent the motor from being restricted due to a startup error.
以上説明した密閉形冷媒圧縮機には次のよう。 The hermetic refrigerant compressor explained above has the following features.
な効果がある。There is an effect.
吐出ガスの温度を直接感知して、圧縮機の瀘０度上昇限
度である所定の温度で形状記憶効果を。Directly senses the temperature of the discharged gas and creates a shape memory effect at a predetermined temperature, which is the compressor's 0 degree rise limit.
発揮して吐出弁をリフトするように構成したの。It was configured to lift the discharge valve by exerting its force.
、で、自動的に過熱、過負荷保護が実現され、簡。, automatically provides overheating and overload protection, and is easy to use.
易な構造で信頼性の高い密閉形冷媒圧縮機を提。We offer a hermetic refrigerant compressor with a simple structure and high reliability.
供することができる。 １５can be provided. 15
第１図は、従来の密閉形冷媒圧縮機の一部給断面図、第
２図は第１図のＡ−Ａ断面で吐出弁周・囲の構造図、第
３図は本発明の一実施例に係る・吐出弁周囲の断面図、
第４図は本発明の他の突０流側な示す吐出弁周囲の断面
図である。 。
１０・・・吐出口、
１１・・・吐出弁、
１５・・・押上板、
１６・・・取付ボルト、 ′１７・・
・ヒータ。
０
５
・ ７ ・
オ １ 図
ｔ
オ ２ 図
（ＣＬ）
２
（−＆）Fig. 1 is a partial sectional view of a conventional hermetic refrigerant compressor, Fig. 2 is a cross section taken along line A-A in Fig. 1, and is a structural diagram of the area around the discharge valve, and Fig. 3 is an embodiment of the present invention. According to an example, a sectional view around the discharge valve,
FIG. 4 is a sectional view of the periphery of the discharge valve showing another 0-flow side of the present invention. . 10...Discharge port, 11...Discharge valve, 15...Push-up plate, 16...Mounting bolt, '17...
·heater. 0 5 ・ 7 ・ O 1 Figure t O 2 Figure (CL) 2 (-&)
Claims (1)
要素を配設し、該圧縮要素に吐出弁を一有する圧縮機に
おいて、該吐出弁に近接して、。 形状記憶金属からなる押上板を配設し、該押上板が高温
状態において元の形状に復起する力に。 より前記吐出弁をもち上げるようにしたことを。 特徴とする密閉形冷媒圧縮機。 １０[Scope of Claim] A compressor including a motor and a compression element driven by the motor disposed in a closed container, and a discharge valve in the compression element, in close proximity to the discharge valve. A push-up plate made of shape-memory metal is provided, and the push-up plate has a force that allows it to return to its original shape under high temperature conditions. The above-mentioned discharge valve is lifted up. Features of hermetic refrigerant compressor. 10
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4066083A JPS59168285A (en) | 1983-03-14 | 1983-03-14 | Hermetically closed coolant compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4066083A JPS59168285A (en) | 1983-03-14 | 1983-03-14 | Hermetically closed coolant compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59168285A true JPS59168285A (en) | 1984-09-21 |
Family
ID=12586684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4066083A Pending JPS59168285A (en) | 1983-03-14 | 1983-03-14 | Hermetically closed coolant compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59168285A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6278384U (en) * | 1985-11-05 | 1987-05-19 | ||
| JP2014129792A (en) * | 2012-12-28 | 2014-07-10 | Daikin Ind Ltd | Compressor and refrigeration device |
| CN111102165A (en) * | 2019-12-13 | 2020-05-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Lift limiting part, exhaust valve assembly, compressor and household appliance |
-
1983
- 1983-03-14 JP JP4066083A patent/JPS59168285A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6278384U (en) * | 1985-11-05 | 1987-05-19 | ||
| JP2014129792A (en) * | 2012-12-28 | 2014-07-10 | Daikin Ind Ltd | Compressor and refrigeration device |
| CN111102165A (en) * | 2019-12-13 | 2020-05-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Lift limiting part, exhaust valve assembly, compressor and household appliance |
| CN111102165B (en) * | 2019-12-13 | 2021-12-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Lift limiting part, exhaust valve assembly, compressor and household appliance |
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