JPS625538U - - Google Patents
Info
- Publication number
- JPS625538U JPS625538U JP9584085U JP9584085U JPS625538U JP S625538 U JPS625538 U JP S625538U JP 9584085 U JP9584085 U JP 9584085U JP 9584085 U JP9584085 U JP 9584085U JP S625538 U JPS625538 U JP S625538U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- fluid
- superheat
- bellows
- predetermined value
- 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
- 238000001514 detection method Methods 0.000 claims description 9
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 6
- 230000002159 abnormal effect Effects 0.000 claims 1
- 230000008602 contraction Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Landscapes
- Thermally Actuated Switches (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Description
図面は本考案の一実施例を示し、第１図は本考
案の過装度検出スイツチの縦断面図、第２図は第
１図の過熱度検出スイツチを冷媒圧縮用コンプレ
ツサに適用した場合の配線図、第３図は過熱度検
出スイツチの温度及び圧力に応じた作動特性図で
ある。
１……吸入側配管（検出空間）、２……過熱度
検出スイツチ、４……ベローズ、５……形状記憶
合金製のばね、６ａ……固定接点、６ｂ……可動
接点、８……リード線、９……コンプレツサ、１
４……電源、１８……ストツパ。
The drawings show one embodiment of the present invention, and Fig. 1 is a longitudinal cross-sectional view of the overload detection switch of the present invention, and Fig. 2 shows the superheat detection switch of Fig. 1 applied to a refrigerant compression compressor. The wiring diagram, FIG. 3, is a diagram showing the operating characteristics of the superheat degree detection switch depending on the temperature and pressure. 1... Suction side piping (detection space), 2... Superheat detection switch, 4... Bellows, 5... Shape memory alloy spring, 6a... Fixed contact, 6b... Movable contact, 8... Lead Line, 9... Compressor, 1
4...Power supply, 18...Stopper.
Claims (1)
ることにより過熱度を検出し、当該過熱度が異常
となつたときその流体の温度又は圧力に感応する
感応手段によつて可動接点を固定接点に接触せし
めるようにした過熱度検出スイツチにおいて、前
記感応手段を内部が前記検出空間と連通されたベ
ローズと、一端が該ベローズの端面に支持され且
つ他端に前記可動接点が固定された形状記憶合金
製のばねと、前記流体の温度が所定値以下のとき
には前記流体の圧力が所定値以下になつても前記
ベローズの収縮を規制して前記可動接点を前記固
定接点に接触させないようにしたストツパから成
り、前記ベローズは前記流体の圧力が所定値以下
となつたとき前記可動接点が前記固定接点と接触
する如く変位し、且つ前記形状記憶合金製のばね
は前記流体の温度が所定値以上となつたとき前記
可動接点が前記固定接点と接触する如く変位する
ようにしたことを特徴とする過熱度検出スイツチ
。 The degree of superheat is detected by detecting the temperature and pressure of the fluid flowing in the detection space, and when the degree of superheat becomes abnormal, the movable contact is changed to a fixed contact by a sensitive means that is sensitive to the temperature or pressure of the fluid. A superheat detection switch in which the sensing means is brought into contact with a bellows having an interior thereof communicated with the detection space, and a shape memory alloy having one end supported by an end surface of the bellows and the movable contact fixed to the other end. and a stopper that prevents the movable contact from coming into contact with the fixed contact by regulating contraction of the bellows even if the pressure of the fluid falls below a predetermined value when the temperature of the fluid is below a predetermined value. The bellows is displaced such that the movable contact comes into contact with the fixed contact when the pressure of the fluid becomes less than a predetermined value, and the shape memory alloy spring is moved when the temperature of the fluid becomes more than a predetermined value. 1. A superheat degree detection switch, wherein the movable contact is displaced so as to come into contact with the fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9584085U JPS625538U (en) | 1985-06-26 | 1985-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9584085U JPS625538U (en) | 1985-06-26 | 1985-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS625538U true JPS625538U (en) | 1987-01-13 |
Family
ID=30960917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9584085U Pending JPS625538U (en) | 1985-06-26 | 1985-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS625538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010020249A1 (en) * | 2008-08-19 | 2010-02-25 | Danfoss A/S | A superheat sensor |
-
1985
- 1985-06-26 JP JP9584085U patent/JPS625538U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010020249A1 (en) * | 2008-08-19 | 2010-02-25 | Danfoss A/S | A superheat sensor |
| US8783945B2 (en) | 2008-08-19 | 2014-07-22 | Danfoss A/S | Superheat sensor |
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