JPS5874977A - Temperature control damper apparatus - Google Patents
Temperature control damper apparatusInfo
- Publication number
- JPS5874977A JPS5874977A JP17306981A JP17306981A JPS5874977A JP S5874977 A JPS5874977 A JP S5874977A JP 17306981 A JP17306981 A JP 17306981A JP 17306981 A JP17306981 A JP 17306981A JP S5874977 A JPS5874977 A JP S5874977A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- bellows
- heat
- temperature
- trap
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
- G05D23/125—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow
- G05D23/126—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow using a capillary tube
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Temperature-Responsive Valves (AREA)
- Control Of Temperature (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は冷凍冷蔵庫などに用いられ冷蔵室の温度に応じ
て冷気ｉｔ副制御るダンパ一式温度調節器に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a temperature controller with a damper set used in refrigerators and the like, which sub-controls cold air depending on the temperature of the refrigerating compartment.
従来の温度調節ダンパー装置を第１図により説明すると
、１はダクトであり、ダンパー２はダクト１内の冷気通
路に揺動可能にばね３により冷気通路を閉じる方向に引
張られて枢支されている。A conventional temperature control damper device will be explained with reference to FIG. 1. Reference numeral 1 denotes a duct, and a damper 2 is pivotally supported in a cold air passage in the duct 1 by being pulled in a direction to close the cold air passage by a spring 3. There is.
ベローズ４、保護カバー５、キャピラリチューブ６、感
熱管７は密閉容器を形成しており、内部には液冷媒が封
入されている。８は押棒であり、感熱管Ｚ内の冷媒の蒸
気圧力により伸縮するベローズ４の動きをダンパー２に
伝達しダクト１の冷気通路を開閉させる。１４は断熱軸
であり、押棒７に貫通されダクト１に挿入されている。The bellows 4, the protective cover 5, the capillary tube 6, and the heat-sensitive tube 7 form a sealed container, and a liquid refrigerant is sealed inside. A push rod 8 transmits the movement of the bellows 4, which expands and contracts due to the vapor pressure of the refrigerant in the heat-sensitive tube Z, to the damper 2, thereby opening and closing the cold air passage of the duct 1. 14 is a heat insulating shaft, which is penetrated by the push rod 7 and inserted into the duct 1.
９はボデーでアリベローズ４、押棒８を収納するととも
にダクト１に取り付けられている。１０は調整ギヤであ
り圧縮された調整ばね１３を押棒８との間に介してポデ
ー９にねじ込まれている。調整ギヤ１０の外面は平歯車
が形成され、フェイスギヤ１１と噛み合い、またフェイ
スギヤ１１Ｆｉ中央部に設けたダイヤル軸１１ａが貫通
して軸受板１２によりダクト１に固定されている。また
冷媒の液容積ＶＬとベローズ４とキャピラリチューブ乙
の容積■Ｂ１感熱管７の容積Ｖｓの関係はＶＢ （ｖｔ
、 （ｖＳとなっている。Reference numeral 9 is a body which accommodates the dovetail bellows 4 and push rod 8 and is attached to the duct 1. Reference numeral 10 denotes an adjustment gear, which is screwed into the podium 9 with a compressed adjustment spring 13 interposed between it and the push rod 8. A spur gear is formed on the outer surface of the adjustment gear 10 and meshes with the face gear 11, and a dial shaft 11a provided at the center of the face gear 11Fi passes through and is fixed to the duct 1 by a bearing plate 12. Furthermore, the relationship between the liquid volume VL of the refrigerant and the volume Vs of the bellows 4 and capillary tube B B1 is VB (vt
, (vS.
次に動作について説明するとベローズ４側の温度が感熱
管７の温度よりも低い場合は冷媒は最も温度の低い位置
に凝縮することから液冷媒はベローズ４側に溜まり、ベ
ロ・−ズ内各積から溢ｎた量（ｖＬ〜Ｖａ ）の液冷媒
が感熱管７に溜まっている。Next, to explain the operation, when the temperature on the bellows 4 side is lower than the temperature of the heat-sensitive tube 7, the refrigerant condenses at the lowest temperature position, so the liquid refrigerant accumulates on the bellows 4 side, and each volume inside the bellows is The amount of liquid refrigerant (vL-Va) that overflowed from the tube is collected in the heat-sensitive tube 7.
またベローズ４側の温度よりも高い場合は液冷媒は温度
の低い感熱管７に溜まるが感熱管７の容積ＶＳＨ封入さ
れた液冷媒ＶＬよりも大きいことから液冷媒は全て感熱
管７に位置している。つまり感熱管７の温度がベローズ
４の温度よりも高い場合も低い場合も常に液冷媒とガス
冷媒の共存状態が感熱管７の内部に存在している。した
がって感熱管７の温度による飽和蒸気圧でベローズ４の
圧力が決定されることになる。しかし状態図第２図に示
すように、ベローズ４の位置が温度を感知する感熱管７
の位置よりも高い位置に設置され、しかも感熱管７の温
度がベローズ４よりも高い場合はベローズ４に冷媒が凝
縮して溜まるが、高低差による重力により液冷媒がキャ
ピラリチューブ６を通り感熱管Ｚ側に流下する。このた
めに感熱管７の液冷媒の温度はベローズ４側から流入し
た温度の低い液冷媒が混ざり、感熱管７周囲の温度との
間に差ができ誤作動してしまう。この冷媒の流下現象に
よる誤作動は感熱管７がベローズ４よりも上方に設置さ
れ、しかも温度が低い場合にも生ずる。If the temperature is higher than the temperature on the bellows 4 side, the liquid refrigerant will accumulate in the low-temperature heat-sensitive tube 7, but since the volume VSH of the heat-sensitive tube 7 is larger than the enclosed liquid refrigerant VL, all of the liquid refrigerant will be located in the heat-sensitive tube 7. ing. In other words, whether the temperature of the heat-sensitive tube 7 is higher or lower than the temperature of the bellows 4, a coexistence state of liquid refrigerant and gas refrigerant always exists inside the heat-sensitive tube 7. Therefore, the pressure of the bellows 4 is determined by the saturated vapor pressure depending on the temperature of the heat-sensitive tube 7. However, as shown in the state diagram FIG.
If the heat-sensitive tube 7 is installed at a higher position than the bellows 4 and the temperature of the heat-sensitive tube 7 is higher than that of the bellows 4, the refrigerant will condense and accumulate in the bellows 4, but the liquid refrigerant will pass through the capillary tube 6 due to the gravity due to the difference in height and reach the heat-sensitive tube. Flows down to the Z side. For this reason, the temperature of the liquid refrigerant in the heat-sensitive tube 7 is mixed with the low-temperature liquid refrigerant that has flowed in from the bellows 4 side, and a difference is created between the temperature of the liquid refrigerant around the heat-sensitive tube 7 and malfunction. This malfunction due to the refrigerant flowing down phenomenon also occurs when the heat-sensitive tube 7 is installed above the bellows 4 and the temperature is low.
本発明の目的は、これらの感熱管内に封入された液冷媒
の移動により誤作動が生じるという現象を防止した温度
調節器を提供するものである。An object of the present invention is to provide a temperature regulator that prevents malfunctions caused by movement of liquid refrigerant sealed within these heat-sensitive tubes.
本発明は−Ｆ記欠点を改善するために行なわれたもので
あり、感熱管とベローズを連結するキャピラリチューブ
にトラップを設けることにより液冷媒の流下現象を防止
するとともに、トラップを感熱管に近づけて設けること
により温度感知を感熱管の温度で作動するようにしたも
のである。The present invention has been made to improve the drawbacks listed in -F, and by providing a trap in the capillary tube that connects the heat-sensitive tube and the bellows, it prevents the liquid refrigerant from flowing down, and the trap is brought closer to the heat-sensitive tube. By providing a heat-sensitive tube, the temperature sensor is activated based on the temperature of the heat-sensitive tube.
本発明の一実施例を第２図により説明すると、同じ番号
は従来例と同一物を示している。ベローズ４、キャピラ
リチューブ６、感熱管７が連通管となり、感熱管７の近
傍のキャピラリチューブ６に螺旋形のトラップ６ａを１
巻き以上設けてあり、連通管内には従来例で述べた゛通
りの液冷媒が封入されている。次に状態図第３図、第４
図により液冷媒の状態を説明する。第３図に示すように
、ベローズ４の位置が温度を感知する感熱管７の位置よ
りも低い位置に設置され、しかも感熱管の温度が低い場
合には感熱管７に凝縮して溜った液冷媒はキャピラリチ
ューブ６の途中に設けたトラップ６ａの位置で流下が防
げられるので感熱管内の液冷媒がベローズ側に流下する
ことがない。また第４図に示すように、ベローズ４の位
置が感熱管７の位置よりも扁く、シかもベローズ４側の
温度が低い場合は、ベローズ４内で凝縮した液冷媒はベ
ローズ４内を満たし、さらに溢れた液冷媒は感熱管７内
に溜まる。このときもベローズ４と感熱−管７の落差に
よる重力によりベローズ４からの液冷媒の流下は感熱管
７近傍のトラップ６ａ部分で止められることになり、液
の流下による不安定状態がなくなる。つまり、キャピラ
リチューブ６の途中にトラップを設けることによりベロ
ーズ４と感熱管７の取付けによる高低の制限がなく使用
することができる。これにより感熱管７には常に液冷媒
とガス冷媒の共存状態となり、感熱管の温度による蒸気
圧によりベローズ内の圧力は決定される。One embodiment of the present invention will be described with reference to FIG. 2, where the same numbers indicate the same parts as in the conventional example. The bellows 4, capillary tube 6, and heat-sensitive tube 7 serve as a communicating tube, and a spiral trap 6a is connected to the capillary tube 6 near the heat-sensitive tube 7.
The communication pipe is provided with more than one coil, and the liquid refrigerant as described in the conventional example is sealed in the communication pipe. Next, state diagrams Figures 3 and 4
The state of the liquid refrigerant will be explained with reference to the diagram. As shown in FIG. 3, when the bellows 4 is installed at a lower position than the heat-sensitive tube 7 that senses temperature, and the temperature of the heat-sensitive tube is low, liquid condenses and accumulates on the heat-sensitive tube 7. Since the refrigerant is prevented from flowing down at the position of the trap 6a provided in the middle of the capillary tube 6, the liquid refrigerant inside the heat-sensitive tube does not flow down to the bellows side. Further, as shown in FIG. 4, if the position of the bellows 4 is lower than the position of the heat-sensitive tube 7 and the temperature on the bellows 4 side is lower, the liquid refrigerant condensed within the bellows 4 will fill the inside of the bellows 4. Further, the overflowing liquid refrigerant accumulates in the heat-sensitive tube 7. At this time as well, the flow of liquid refrigerant from the bellows 4 is stopped at the trap 6a near the heat-sensitive tube 7 due to the gravity caused by the head difference between the bellows 4 and the heat-sensitive tube 7, and an unstable state due to the flow of liquid is eliminated. In other words, by providing a trap in the middle of the capillary tube 6, the capillary tube 6 can be used without being limited in height by attachment of the bellows 4 and the heat-sensitive tube 7. As a result, a liquid refrigerant and a gas refrigerant coexist in the heat-sensitive tube 7 at all times, and the pressure inside the bellows is determined by the vapor pressure depending on the temperature of the heat-sensitive tube.
またトラップの形状を螺旋形にし、１巻き以上の成形を
し、たので螺旋方向を水平にして取り付ければ６６０度
の向きに設置してもトラップが形成され、取り付は方向
の制限がなく使用することができる。さらにトラップ６
ａの位置が温度を感知する感熱管７の近傍に設けたので
液止めがトラップの部分で行なわれた場合にもトラップ
６ａ部分と感熱管７の部分の温度差は非常に少なくほぼ
感熱部の温度による飽和蒸気圧となり、安定した温度感
知が得られ誤動作を防止することができる。In addition, the shape of the trap is spiral, and it is molded into one or more turns, so if it is installed with the spiral direction horizontal, the trap will be formed even if it is installed in a 660 degree orientation, and there are no restrictions on the installation direction. can do. More trap 6
Since the position of a is located near the heat-sensitive tube 7 that senses the temperature, even if the liquid is stopped at the trap, the temperature difference between the trap 6a and the heat-sensitive tube 7 is very small. The saturated vapor pressure is determined by temperature, allowing stable temperature sensing and preventing malfunctions.
次に温度調節の動作について説明すると、冷蔵室に設置
された感熱管７の温度が高くなると感熱管内の蒸気圧が
高くなり、ベローズ４を膨張し、押棒８と調整ギヤ１０
の間に介在させた調整ばね１６を圧縮しなから押棒８が
ダンパー２を押し動かし、ダクト１の冷気通路を開いて
冷気を冷蔵室に吐出して冷蔵室を冷やす。冷蔵室が冷え
て管熱管７の温度が低くなると冷媒の蒸気圧が低くなり
、ベローズ４内の圧力が小さくなるのでベローズ４は押
棒８と共に調整ばね１６の反発力により押し戻され、ダ
ンパー２はばね３によりダクト１の冷気通路ｒ閉じて冷
蔵室への冷気量を調節して冷蔵室の温度を一定に保つ。Next, to explain the operation of temperature adjustment, as the temperature of the heat-sensitive tube 7 installed in the refrigerator room increases, the vapor pressure inside the heat-sensitive tube increases, expanding the bellows 4 and moving the push rod 8 and adjustment gear 10.
The push rod 8 pushes the damper 2 without compressing the adjustment spring 16 interposed therebetween, opens the cold air passage of the duct 1, and discharges cold air into the refrigerator compartment to cool the refrigerator compartment. When the refrigerator compartment cools down and the temperature of the tube heating tube 7 decreases, the vapor pressure of the refrigerant decreases, and the pressure inside the bellows 4 decreases, so the bellows 4 is pushed back together with the push rod 8 by the repulsive force of the adjustment spring 16, and the damper 2 is pushed back by the spring. 3 closes the cold air passage r of the duct 1 to adjust the amount of cold air flowing into the refrigerator compartment and keep the temperature of the refrigerator compartment constant.
冷蔵室の温度を変えたい場合はフェイスギヤのダイヤル
軸１１ａを回転することによりフェイスギヤ１１と噛み
合った調整ギヤ１０を回動し、ボデー９とのねじ込み量
が変わり、調整ばね１６の圧縮量を変えることにより行
なう。If you want to change the temperature of the refrigerator compartment, by rotating the dial shaft 11a of the face gear, the adjustment gear 10 meshed with the face gear 11 is rotated, the amount of screwing into the body 9 is changed, and the amount of compression of the adjustment spring 16 is changed. This is done by changing.
以上説明した如く、本発明によ扛ば温度調節ダンパー装
置のベローズと感熱管全連結するキャピラリチューブに
トラップを設け、（ラップの形状を１巻き以上の螺旋形
とするとともにトラップの位ｌｉｋ感熱管の近傍とした
ので、ベローズと感熱管の高低差および温度差に関係、
なく使用することができるとともに、常に感熱管の温度
により作動する誤作動が得られる。As explained above, according to the present invention, a trap is provided in the capillary tube that connects the bellows of the temperature control damper device and the heat-sensitive tube (the shape of the wrap is a spiral shape with one or more turns), and Since it is set near , it is related to the height difference and temperature difference between the bellows and the heat-sensitive tube.
In addition to being able to be used without any problems, it also always prevents malfunctions due to the temperature of the heat-sensitive tube.
第１図は従来の温度調節ダンパー装置の縦断面図、第２
図は本発明の温度調節ダンパー装置の縦断面図、第３図
、第４図は本発明の冷媒の状態を示す状態図である。
１・・・ダクト、２°・°ダンパー、３・・・ばね、４
・・・ベローズ、５・・・保護カバー、６・・・キャピ
ラリチューブ、６ａ・・・トラップ、７・・・感熱管、
８・・・押棒、９・・・ボデー、１０・・・調整ギヤ、
１１・・・フェイスギヤ、１２・・・軸受板、１６・・
・調整ばね、１４・・・断熱幅。
代理人弁理士 薄 １）利 翫“鶴、Figure 1 is a longitudinal sectional view of a conventional temperature control damper device, Figure 2
The figure is a longitudinal sectional view of the temperature regulating damper device of the present invention, and FIGS. 3 and 4 are state diagrams showing the state of the refrigerant of the present invention. 1... Duct, 2°/° damper, 3... Spring, 4
... Bellows, 5... Protective cover, 6... Capillary tube, 6a... Trap, 7... Heat sensitive tube,
8... Push rod, 9... Body, 10... Adjustment gear,
11...Face gear, 12...Bearing plate, 16...
・Adjustment spring, 14...Insulation width. Representative Patent Attorney Bo 1) Li Han “Tsuru,”
Claims (1)
る連通管内に封入した冷媒の蒸気圧力によりベローズを
変位させ、この変化量を押棒等により冷気通路を形成す
るダクト内に揺動可能に枢支さｎたダンパーに伝達し、
冷気通路を開閉させる温度調節ダンパー装置において、
感熱管とベローズを連結するキャピラリチューブにトラ
ップを設けたことを特徴とする温度調節ダンパー装置、 ２、 キャピラリチューブに設けたトラップの位置を温
度を感知する感熱管の近傍に形成した特許請求の範囲第
１項記載の温度調節ダンパー装置。 ６、トラップを１巻き以上の螺旋形にした特許請求の範
囲第１項および第２項記載の温度調節ダンパー装置。[Claims] 1. The bellows is displaced by the vapor pressure of a refrigerant sealed in a communicating tube consisting of a heat-sensitive tube, a capillary tube, and a bellows, and this amount of change can be swung into a duct forming a cold air passage using a push rod or the like. is transmitted to the damper pivoted on the
In the temperature control damper device that opens and closes the cold air passage,
2. A temperature regulating damper device characterized in that a trap is provided in a capillary tube that connects a heat-sensitive tube and a bellows; 2. Claims in which the trap provided in the capillary tube is located near a heat-sensitive tube that senses temperature. 2. The temperature control damper device according to item 1. 6. The temperature control damper device according to claims 1 and 2, wherein the trap has a spiral shape with one or more turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17306981A JPS5874977A (en) | 1981-10-30 | 1981-10-30 | Temperature control damper apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17306981A JPS5874977A (en) | 1981-10-30 | 1981-10-30 | Temperature control damper apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5874977A true JPS5874977A (en) | 1983-05-06 |
Family
ID=15953626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17306981A Pending JPS5874977A (en) | 1981-10-30 | 1981-10-30 | Temperature control damper apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5874977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100977747B1 (en) | 2008-02-20 | 2010-08-24 | 주식회사 한국번디 | Manufacturing Method of Temperature Controller |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249496U (en) * | 1975-10-03 | 1977-04-08 |
-
1981
- 1981-10-30 JP JP17306981A patent/JPS5874977A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249496U (en) * | 1975-10-03 | 1977-04-08 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100977747B1 (en) | 2008-02-20 | 2010-08-24 | 주식회사 한국번디 | Manufacturing Method of Temperature Controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4258899A (en) | Actuating apparatus for adjusting a movable element, particularly the closure member of a valve | |
| US2520191A (en) | Refrigerant expansion valve | |
| JPH1016542A (en) | Receiver having expansion mechanism | |
| US3659433A (en) | Refrigeration system including a flow metering device | |
| JPS5874977A (en) | Temperature control damper apparatus | |
| US3054273A (en) | Thermal expansion valve | |
| CN113701405B (en) | Refrigeration system thermostatic expansion valve temperature sensing bulb with overheat protection | |
| US2959933A (en) | Air conditioning apparatus | |
| CN105605835A (en) | Expansion apparatus and refrigerant cycle of vehicle air conditioner using the same | |
| CN212390645U (en) | Absorption refrigeration system combined with siphon evaporator | |
| US2224377A (en) | Refrigerating apparatus | |
| US3691784A (en) | Cryogenic refrigerating apparatus | |
| US2573151A (en) | Refrigerant expansion valve | |
| US2500778A (en) | Refrigerator having an automatically controlled secondary refrigerant system | |
| US3704598A (en) | Cryogenic cooling apparatus | |
| US4784320A (en) | Metal hydride thermostat | |
| US2778196A (en) | Automatic control apparatus for refrigeration system | |
| US2279888A (en) | Control system | |
| JPH0215789B2 (en) | ||
| JPH025346Y2 (en) | ||
| US1719074A (en) | Regulating mechanism | |
| JP2586427B2 (en) | Expansion valve for refrigeration cycle | |
| JPS61280371A (en) | Refrigerator | |
| US2256671A (en) | Refrigerating apparatus | |
| US5144815A (en) | Thermal valve for compressor |