WO2001081851A1 - Heat switch - Google Patents

Heat switch Download PDF

Info

Publication number
WO2001081851A1
WO2001081851A1 PCT/JP2001/003372 JP0103372W WO0181851A1 WO 2001081851 A1 WO2001081851 A1 WO 2001081851A1 JP 0103372 W JP0103372 W JP 0103372W WO 0181851 A1 WO0181851 A1 WO 0181851A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat medium
heat
heating
reservoir
wick
Prior art date
Application number
PCT/JP2001/003372
Other languages
French (fr)
Japanese (ja)
Inventor
Harunori Kishi
Original Assignee
Harunori Kishi
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
Priority to JP2000163716 priority Critical
Priority to JP2000-163716 priority
Application filed by Harunori Kishi filed Critical Harunori Kishi
Publication of WO2001081851A1 publication Critical patent/WO2001081851A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/06Control arrangements therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus

Abstract

A heat switch which is relatively simple in construction, quick in switching action, and satisfactory in heat cut-off ability. The wicks in the heating and cooling sections, respectively, of a heat pipe are separated from each other, and a flow channel is provided which returns a heat medium from the cooling section to a heat medium reservoir. Feeding of the heat medium to the heating section is from the heat medium reservoir through the heating section wick. The heat medium reservoir is of volume-variable construction. Changing the volume of the heat medium reservoir controls contact and noncontact between the heating section wick and the heat medium, thereby providing on-off control of the heat transmission of the heat medium.

Description

明 細 書  Specification
熱スィツチ 技術分野 Thermal Switch Technical Field
本発明は熱の移動を制御するスィツチ機能を持ったヒートパイプに関する ものである。 背晕技術  The present invention relates to a heat pipe having a switch function for controlling heat transfer. Technology
従来の熱スィツチとしては、 磁力で羽根を操作して蒸気流を遮断する方式 の熱スィツチ、冷却部から加熱部へ戻る途中の熱媒を電子冷却で凍らせる方式 の熱スィツチ等が提案されていた。 これらの熱スィツチは、構造が複雑であつ たり、 スイッチング動作が遅い、 熱遮断が不完全といった簡題があった。 本発明は比較的に単純な構造で、 スイッチング動作が速く、 熱遮断性が良 好な熱スィツチを得ることが目的である。 発明の開示  As a conventional heat switch, a heat switch in which a blade is operated by magnetic force to shut off a steam flow, and a heat switch in which a heat medium returning from a cooling section to a heating section is frozen by electronic cooling are proposed. Was. These heat switches had simple problems such as complicated structure, slow switching operation, and incomplete heat interruption. SUMMARY OF THE INVENTION An object of the present invention is to obtain a heat switch having a relatively simple structure, a fast switching operation, and good heat insulation. Disclosure of the invention
上記目的を達成するため、 本発明の熱スィッチは、 相互に離れた位置に加 熱部と冷却部とを設けた中空容器と熱媒溜とで密閉容器を形成し、前記熱媒溜 は熱媒を収用する体積を可変できる機構を備え、前記熱媒溜の体積を変える手 段を設け、前記密閉容器内には前記加熱部で蒸発し冷却部で凝縮する熱媒を封 入し、前記凝縮した熱媒を一時貯めておく中間熱媒溜を設け、前記凝縮した熱 媒を中間熱媒溜へ導く冷却部ウィックを設け、中間熱媒溜から熱媒溜へ熱媒を 戻す戻り流路を設け、前記熱媒溜から加熱部へ熱媒を供給するための冷却部の ウィックとは分離された加熱部ウィックを設けたものである。  In order to achieve the above object, a heat switch of the present invention comprises a closed container formed of a hollow container provided with a heating unit and a cooling unit at positions separated from each other and a heat medium reservoir, and the heat medium reservoir is provided with a heat medium. A mechanism for changing the volume for accommodating the medium, a means for changing the volume of the heat medium reservoir is provided, and a heat medium that evaporates in the heating unit and condenses in the cooling unit is sealed in the closed container; An intermediate heat medium reservoir for temporarily storing the condensed heat medium; a cooling unit wick for guiding the condensed heat medium to the intermediate heat medium reservoir; and a return flow path for returning the heat medium from the intermediate heat medium reservoir to the heat medium reservoir. And a heating unit wick separated from the cooling unit wick for supplying the heating medium from the heating medium reservoir to the heating unit.
この熱スィッチにおいて、 熱媒溜の熱媒を収用する体積を縮小すると熱媒 の液レベルが高くなり、 加熱部のウィックと熱媒溜の熱媒が接触している状 態になる。この状態で加熱部に外部から熱を加えると加熱部のウイック; ^ら熱 媒が蒸発し、その蒸発した熱媒量に相当する熱媒が毛管現象により熱媒溜から 補充される。 次に蒸発した熱媒は圧力差により冷却部に移動し、冷却部では、 外部に熱を放出して熱媒が液体に戻る。その熱媒は冷却部のウィック、中間熱 媒溜、戻り流路を通って、熱媒溜に戻る。 といったサイクルで通常のヒートパ イブと同様の大量の熱伝達を実現することができる。 In this heat switch, when the volume of the heat medium in the heat medium reservoir is reduced, the liquid level of the heat medium rises, and the wick of the heating section is in contact with the heat medium in the heat medium reservoir. Be in a state. When heat is externally applied to the heating section in this state, the wick of the heating section evaporates, and the heating medium corresponding to the amount of the evaporated heating medium is replenished from the heating medium reservoir by capillary action. Next, the evaporated heat medium moves to the cooling unit due to the pressure difference, and in the cooling unit, heat is released to the outside and the heat medium returns to liquid. The heat medium returns to the heat medium reservoir through the wick of the cooling section, the intermediate heat reservoir, and the return flow path. In such a cycle, a large amount of heat transfer similar to a normal heat pipe can be realized.
次に、 熱媒溜の熱媒を収用する体積を増大させると熱媒溜の液レベルが下 がり、加熱部のウィックと熱媒溜の熱媒が接触しない状態になる。加熱部ウイ ックに残つた熱媒が蒸発した後は、外部から熱を加えても熱媒が熱媒溜から供 給されないため、 熱媒による熱伝達作用は起こらない。  Next, when the volume of the heat medium reservoir for accommodating the heat medium is increased, the liquid level of the heat medium reservoir decreases, and the wick of the heating unit does not come into contact with the heat medium of the heat medium reservoir. After the heat medium remaining in the heating unit wick evaporates, the heat medium is not supplied from the heat medium reservoir even if heat is applied from the outside, so that the heat transfer action by the heat medium does not occur.
再ぴ熱媒溜の熱媒を収用する体積を縮小すると、 熱媒の液レベルが高くな り、加熱部ウィックと熱媒溜の熱媒が している状態になる。すると熱媒が 毛管現象により熱媒溜から加熱部のウィックに補充され、直ちに熱媒が蒸発し、 前述の大量の熱伝達状態に戻る。  When the volume of the heat medium in the heat storage medium is reduced, the liquid level of the heat medium increases, and the heating unit wick and the heat medium in the heat medium medium are separated. Then, the heat medium is replenished from the heat medium reservoir to the wick of the heating section by capillary action, and the heat medium evaporates immediately and returns to the above-described large heat transfer state.
この様に熱媒溜の熱媒の液レベルを操作して、 熱媒溜の熱媒と加熱部のゥ イツクの接触を断続することで熱伝達の断続が実現できる。  In this way, by controlling the liquid level of the heat medium in the heat medium reservoir and intermittently contacting the heat medium in the heat medium reservoir with the jack of the heating unit, intermittent heat transfer can be realized.
なお加熱部ウィックと冷却部ウィックが分離されているため、 加熱部の径 と冷却部の径を変えることができ、両者を継ぐ部位をセラミックなどの熱伝導 率の小さい材料で構成すれば中空容器の熱伝導による伝熱を極めて小さくす ることができ、 熱遮断性をさらに良くすることができる。 図面の簡単な説明  Since the heating part wick and the cooling part wick are separated, the diameter of the heating part and the diameter of the cooling part can be changed, and if the part connecting them is made of a material with low thermal conductivity such as ceramic, a hollow container The heat transfer due to heat conduction can be made extremely small, and the heat insulation can be further improved. BRIEF DESCRIPTION OF THE FIGURES
図 1は、 この発明にかかる装置の正面図 (断面図) である。 発明を実施するための最良の形態 FIG. 1 is a front view (cross-sectional view) of an apparatus according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
発明の実施の形態を実施例にもとずき図面を參照して説明する。 図 1にお いて中空容器 ( 1 ) の加熱部 A、 冷却部 Bの内側に加熱部ウィック ( 5 ) 、 冷却部ウィック (2) として金網、焼結金属等の毛管力の大きい構造体を装着 する。 冷却部ウィック (2) の端部に中間熱媒溜 (3) を形成する。 中間熱媒 溜 (3) の一部を切り欠き、 パイプなどで戻り流路 (4) を形成する。 熱媒溜 (7) はべローズ(8) などの伸縮可能な構造体を含んだもので構成する。 中 空容器と熱媒溜 ( 7 )を溶接などの適当な方法により密閉構造とし、熱媒溜 ( 7 ) には、適当な量の熱媒(6) を封入する。 ベローズ(8) の片方の端部を外箱 (12) に固定し、反対の自由端にはソレノィドのプランジャ (9) を取り付 ける。 ソレノィド (11) を外箱 (12) に固定する。 ベローズ (8) の自由 端とソレノィド (11) の間に適当な強さの圧縮スプリング (10) を装着す る。 以上の様にして熱スィッチを構成する。  Embodiments of the present invention will be described with reference to the drawings based on examples. In Fig. 1, a structure with a large capillary force such as a wire mesh or sintered metal is installed inside the heating part A and cooling part B of the hollow container (1) as the heating part wick (5) and the cooling part wick (2). I do. Form an intermediate heat reservoir (3) at the end of the cooling unit wick (2). Cut out part of the intermediate heat reservoir (3) and form a return channel (4) with pipes. The heat medium reservoir (7) is configured to include a structure that can expand and contract, such as a bellows (8). The hollow container and the heat medium reservoir (7) are sealed by an appropriate method such as welding, and an appropriate amount of the heat medium (6) is sealed in the heat medium reservoir (7). Secure one end of the bellows (8) to the outer box (12) and attach a solenoid plunger (9) to the other free end. Secure the solenoid (11) to the outer box (12). Install a compression spring (10) of appropriate strength between the free end of the bellows (8) and the solenoid (11). The thermal switch is configured as described above.
次にこの熱スィッチの動作について説明する。 まず、 熱伝達機能が動作す る ONモードは  Next, the operation of the heat switch will be described. First, the ON mode in which the heat transfer function operates
(i) ソレノィド(11)を OFFにし、圧縮スプリングの力でベローズ(8) を縮小させる。 すると、熱媒溜 (7) の体積が縮小し、熱媒の液レベルは上昇 し、 熱媒溜の熱媒と加熱部ウィックとが接触する。  (i) Turn off the solenoid (11) and reduce the bellows (8) by the force of the compression spring. Then, the volume of the heat medium reservoir (7) is reduced, the liquid level of the heat medium rises, and the heat medium of the heat medium reservoir comes into contact with the heating unit wick.
(ii) 毛管現象により加熱部ウィック (5) に熱が浸潤する。  (ii) Heat infiltrates the heating section wick (5) due to capillary action.
(ffi) 外部より加熱部 Aに熱が加わると、 加熱部ウィック (5) の熱媒は 蒸発し、 蒸発した分は熱媒溜 (7) より毛管現象により補充される。  (ffi) When heat is applied to the heating section A from the outside, the heating medium in the heating section wick (5) evaporates, and the evaporated portion is replenished from the heating medium reservoir (7) by capillary action.
M 蒸発した熱媒は圧力差により冷却部 Bの方へ移動する。  M The evaporated heat medium moves toward the cooling section B due to the pressure difference.
(V) 冷却都 Bでは外部へ熱を放出して凝縮し、 熱媒が液体に戻る。 (V) In cooling city B, heat is released to the outside and condenses, and the heat medium returns to liquid.
) 凝縮した熱媒は、 自重及び毛管力により冷却部ウィック (2) 、 中間 熱媒溜 (3) 、 戻り流路 (4) を経て熱媒溜 (7) に戻る。  The condensed heat medium returns to the heat medium reservoir (7) via the cooling unit wick (2), the intermediate heat medium reservoir (3), and the return flow path (4) by its own weight and capillary force.
(vfi) (iii) の作用に戻る。 以上のサイクルを繰り返してヒートパイプと周様に熱媒の蒸発潜熱を利用 した大量の熱伝達機能が実現できる。 (vfi) Return to the action of (iii). By repeating the above cycle, a large amount of heat transfer function using the latent heat of vaporization of the heat medium can be realized like a heat pipe.
次に熱伝達機能が動作しない O F Fモードは  Next, the heat transfer function does not work.
(i) ソレノィド (11) を ONにし、圧縮スプリング (10) のパネカ以 上力でベローズ (8) を伸長させる。 すると、 熱媒溜 (7) の体積が増加し、 熱媒の液レベルは下降し、熱媒溜の熱媒と加熱部ウィック (5) の接触が絶た れる。  (i) Turn on the solenoid (11) and extend the bellows (8) with a force higher than that of the compression spring (10). Then, the volume of the heat medium reservoir (7) increases, the liquid level of the heat medium drops, and the contact between the heat medium of the heat medium reservoir and the heating unit wick (5) is cut off.
(ii) 外部より加熱部 Aに加わえられた熱により、 加熱部ウィック (5) に残った熱媒が蒸努し終わると、熱媒溜 (7) カ^の熱媒の供給がないため、 それ以上の熱媒による熱伝達は中断される。  (ii) When the heating medium remaining in the heating section wick (5) is completely steamed by the heat applied to the heating section A from the outside, the heating medium in the heating medium reservoir (7) is not supplied. However, the heat transfer by the further heat medium is interrupted.
(iii) 前記の最後に蒸発した熱媒も圧力差により冷却部 Bの方へ移動し、 冷却部 Bで外部へ熱を放出して凝縮し、 熱媒溜 (7) に戻る。 前期の (ii) と同じ理由でその後の熱媒による熱伝達作用は継続されない。  (iii) The heat medium evaporated at the end also moves toward the cooling section B due to the pressure difference, releases heat to the outside in the cooling section B, condenses, and returns to the heat medium reservoir (7). For the same reason as in (ii) of the previous term, the subsequent heat transfer by the heat medium is not continued.
以上の順序で速やかに熱媒による熱伝達作用は遮断される。  In the above order, the heat transfer action by the heat medium is immediately cut off.
このように熱媒溜の体積を変えることで、 加熱部ウィックと熱媒との接 触 ·非接触を制御し、 もって熱媒による熱伝達の ON -OFFを制御すること ができる。 産業上の利用可能性  By changing the volume of the heat medium reservoir in this way, it is possible to control the contact / non-contact between the heating unit wick and the heat medium, thereby controlling the heat transfer ON-OFF by the heat medium. Industrial applicability
この発明によれば、 比較的に単純な構造で、 スィツチング動作が速く、 熱遮断性が良好な熱スィツチが実現することができる。  According to the present invention, it is possible to realize a heat switch having a relatively simple structure, a fast switching operation, and good heat insulation.

Claims

請求の範囲 The scope of the claims
1 . 相互に離れた位置に加熱部と冷却部とを設けた中空容器と熱媒溜とで密 閉容器を形成し、前記熱媒溜は熱媒を収用する体積を可変できる機構を備え、. 前記熱媒溜の体積を変える手段を設け、前記密閉容器内には前記加熱部で蒸発 し冷却部で凝縮する熱媒を封入し、 前記凝縮した熱媒を一時貯めておく中間 熱媒溜を設け、前記凝縮した熱媒を中間熱媒溜へ導く冷却部ウイックを設け、 中間熱媒溜から熱媒溜へ熱媒を戻す戾り流路を設け、前記熱媒溜から加熱部へ 熱媒を供給するための冷却部ウイックとは分離された加熱部ウイックを設け た熱スィツチ。 1. A closed container is formed by a hollow container provided with a heating unit and a cooling unit at positions separated from each other and a heat medium reservoir, and the heat medium reservoir has a mechanism capable of changing a volume for receiving the heat medium, Means for changing the volume of the heat medium reservoir are provided, a heat medium that evaporates in the heating unit and condenses in the cooling unit is sealed in the closed container, and an intermediate heat medium reservoir that temporarily stores the condensed heat medium is provided. A cooling unit wick that guides the condensed heat medium to the intermediate heat medium reservoir; a flow path for returning the heat medium from the intermediate heat medium reservoir to the heat medium reservoir; and a heat path from the heat medium reservoir to the heating unit. A heat switch provided with a heating unit wick separate from the cooling unit wick for supplying the medium.
PCT/JP2001/003372 2000-04-24 2001-04-19 Heat switch WO2001081851A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000163716 2000-04-24
JP2000-163716 2000-04-24

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001578893A JP4446326B2 (en) 2000-04-24 2001-04-19 Thermal switch
AU4879601A AU4879601A (en) 2000-04-24 2001-04-19 Heat switch

Publications (1)

Publication Number Publication Date
WO2001081851A1 true WO2001081851A1 (en) 2001-11-01

Family

ID=18667434

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/003372 WO2001081851A1 (en) 2000-04-24 2001-04-19 Heat switch

Country Status (3)

Country Link
JP (1) JP4446326B2 (en)
AU (1) AU4879601A (en)
WO (1) WO2001081851A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1304808C (en) * 2003-08-06 2007-03-14 中国科学院电工研究所 Low temperature heat tube for thermal switch
CN103759562A (en) * 2014-01-18 2014-04-30 门立山 One-way heat transfer valve
CN103900418A (en) * 2014-03-26 2014-07-02 苏州永博电气有限公司 Heat transmission control switch
JP2016001070A (en) * 2014-06-11 2016-01-07 株式会社デンソー Cooler
CN111735215A (en) * 2020-07-03 2020-10-02 西安建筑科技大学 Area-variable type phase-change sleeve solar flat plate collector

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1304808C (en) * 2003-08-06 2007-03-14 中国科学院电工研究所 Low temperature heat tube for thermal switch
CN103759562A (en) * 2014-01-18 2014-04-30 门立山 One-way heat transfer valve
CN103759562B (en) * 2014-01-18 2015-06-10 门立山 One-way heat transfer valve
CN103900418A (en) * 2014-03-26 2014-07-02 苏州永博电气有限公司 Heat transmission control switch
JP2016001070A (en) * 2014-06-11 2016-01-07 株式会社デンソー Cooler
CN111735215A (en) * 2020-07-03 2020-10-02 西安建筑科技大学 Area-variable type phase-change sleeve solar flat plate collector

Also Published As

Publication number Publication date
AU4879601A (en) 2001-11-07
JP4446326B2 (en) 2010-04-07

Similar Documents

Publication Publication Date Title
US20080036076A1 (en) Intelligent cooling method combining passive and active cooling components
EP0348838A3 (en) Bellows heat pipe for thermal control of electronic components
WO2001081851A1 (en) Heat switch
JP2000146471A (en) Loop type heat pipe
US3805528A (en) Thermal actuator
JP2012255577A (en) Loop heat pipe, and electronic apparatus including the same
WO1999060321A1 (en) Thermally controlled active heat switch system
US9534819B2 (en) System for fast and accurate filling of a two-phase cooling device, notably a heat pipe, adapted for use in an automated process
US4413671A (en) Switchable on-off heat pipe
KR100865718B1 (en) Heat Pipe for Long Distance
US3614981A (en) Dual tube heat pipe and means for control thereof
US2156082A (en) Compensated pre-heat coil
JP2001235260A (en) Overheating stabilized device of gasification device
JPH0726795B2 (en) Heat transport pipe
JP4992917B2 (en) External combustion engine
JP2006292337A (en) Heat pipe device
KR20050095289A (en) Heat pipe with triangle groove wick
KR100922215B1 (en) Cold water dispenser
AU659502B2 (en) Improvements in and relating to heat pipes
JP2000046486A (en) Heat transfer apparatus
JP4146241B2 (en) Ironing equipment
JP2004132601A (en) Capillary force driven two-phase fluid loop and its heat transport method
KR20200066142A (en) Plate type heat pipe
KR100876453B1 (en) Heat pipe
JP2000150750A (en) Device for limiting temperature of light-emitting laser diode

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA CN IL IN JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
ENP Entry into the national phase in:

Ref country code: JP

Ref document number: 2001 578893

Kind code of ref document: A

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase