WO2010137361A1 - 感温アクチュエータ取付構造 - Google Patents
感温アクチュエータ取付構造 Download PDFInfo
- Publication number
- WO2010137361A1 WO2010137361A1 PCT/JP2010/052142 JP2010052142W WO2010137361A1 WO 2010137361 A1 WO2010137361 A1 WO 2010137361A1 JP 2010052142 W JP2010052142 W JP 2010052142W WO 2010137361 A1 WO2010137361 A1 WO 2010137361A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensitive actuator
- temperature
- piston
- temperature sensitive
- elastic member
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
- F02M1/08—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically
- F02M1/10—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat
- F02M1/12—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat with means for electrically heating thermostat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
Definitions
- the present invention relates to an attachment structure for attaching to a member to be attached a temperature-sensitive actuator that expands wax by projecting a heating element to project a piston.
- a heating element that generates heat when energized through a terminal, a wax that expands due to the heat generated by the heating element, a piston that protrudes from a through-hole formed in the housing by the expansion of the wax, and the piston
- a temperature-sensitive actuator provided with an elastic member that urges the non-projecting side to a non-projecting side is attached to a mounted member made of an automatic choke device (for example, see Patent Document 1).
- An object of the present invention is to provide a mounting structure with improved assembly of a temperature-sensitive actuator.
- the present invention provides a heating element that generates heat when energized through an energization terminal, a wax that expands due to the heat generated by the heating element, a piston that protrudes due to expansion of the wax,
- a temperature-sensitive actuator mounting structure in which a temperature-sensitive actuator having an elastic member that biases the piston toward the non-projecting side is mounted on a mounted member, a fixing protrusion is provided on a current-carrying terminal of the temperature-sensitive actuator,
- the mounting member is provided with a receiving portion that can receive the fixing protrusion from an orthogonal direction orthogonal to the axis of the piston, and the temperature-sensitive actuator is fixed by receiving the fixing protrusion in the receiving portion. It is characterized by being.
- the temperature-sensing actuator is attached by providing a fixing protrusion on the energizing terminal and inserting the fixing protrusion into the receiving part of the attachment member from an orthogonal direction perpendicular to the axis of the piston. Since it is fixed to the member, it can be attached without screwing, and the assemblability can be improved as compared with the conventional case.
- FIG. 7 is a sectional view taken along line VII-VII in FIG. 6.
- Sectional drawing which shows the non-protrusion state of the piston of the temperature-sensitive actuator of 2nd Embodiment.
- Sectional drawing which shows the protrusion state of the piston of the temperature-sensitive actuator of 2nd Embodiment Explanatory drawing which shows 3rd Embodiment of the attachment structure of the temperature sensitive actuator of this invention.
- FIGS. 1 to 4 a first embodiment of the temperature-sensitive actuator mounting structure of the present invention will be described using an automatic choke device as a mounted member.
- An automatic choke device 1 shown in FIG. 1 is attached to a carburetor provided in a general-purpose engine or the like (not shown), and includes a temperature sensitive actuator 2 that can project a piston 21 and a butterfly type that can block an intake passage 31.
- the choke valve 32 is provided. When the piston 21 of the temperature sensitive actuator 2 protrudes, the choke valve 32 is opened via the link mechanism 33.
- the temperature-sensitive actuator 2 includes first and second current-carrying terminals 41 and 42 with an interval in the axial direction of the piston 21.
- Lead wires 43a and 43b are connected to the energization terminals 41 and 42, respectively.
- a pair of fixing protrusions 41 a is formed on the front-side energization terminal 41.
- the automatic choke device 1 is provided with a mounting portion 11 for attaching the temperature sensitive actuator 2.
- the attachment portion 11 is configured by a substantially rectangular convex wall portion 12, and the temperature-sensitive actuator 2 is attached in the convex wall portion 12.
- a cutout portion 13 from which the piston 21 can freely protrude is provided at the tip of the convex wall portion 12.
- a receiving portion 14 that can receive a pair of fixing protrusions 41 a is formed on the side wall portion of the convex wall portion 12.
- Each receiving portion 14 is provided with a concave portion 14a that is recessed toward the rear end side.
- a notch 16 for positioning the temperature-sensitive actuator 2 by contacting the casing 24 of the temperature-sensitive actuator 2 is provided at the rear end portion of the convex wall portion 12.
- the tip portion of the piston 21 is formed with a small diameter, thereby forming a stepped portion 21a.
- the piston 21 is fitted with a receiving member 22 whose front end is locked to the stepped portion 21a of the piston 21 and receives an elastic member 23 made of a return spring at a flange 22b provided at the rear end.
- the elastic member 23 formed of a return spring is disposed between the flange portion 22b and the inner surface of the convex wall portion 12 on the front end side.
- the elastic member 23 urges the piston 21 rearward through the receiving member 22 locked to the step portion of the piston 21 so that the piston 21 is in a non-projecting state.
- the fixing protrusion 41a of the temperature sensitive actuator 2 is brought into contact with the rear end surface of the recess 14a by the urging force of the elastic member 23. Thereby, the temperature-sensitive actuator 2 is prevented from moving in the axial direction with respect to the automatic choke device 1.
- the pair of fixing protrusions 41a of the temperature-sensitive actuator 2 are positioned in the concave portion 14a, thereby preventing the temperature-sensitive actuator 2 from rotating in the convex wall portion 12 and dropping out of the convex portion 12. ing.
- the elastic member 23, the fixing protrusions 41a and 41a, and the concave portions 14a and 14a are firmly fixed in the convex wall portion 12, so that vibration or the like
- the temperature sensitive actuator 2 is reliably prevented from falling out of the convex wall portion 12, and the assembly of the temperature sensitive actuator 2 is improved as compared with the conventional screwed type.
- the degree of freedom in arrangement of the temperature-sensitive actuator 2 is improved, and the automatic choke device 1 can be reduced in size.
- the temperature sensitive actuator 2 is positioned by the casing 24 of the temperature sensitive actuator 2 coming into contact with the notch 16 at the rear end of the convex wall portion 12, the fixing projections 41a and 41a and the concave portions 14a and 14a are positioned. In combination with the fixing, the temperature-sensitive actuator 2 can be prevented from tilting in the convex wall portion 12.
- the temperature-sensitive actuator 2 of the second embodiment is attached to the automatic choke device 1 that is a member to be attached.
- the same components as those of the first embodiment are denoted by the same reference numerals and the same reference numerals. Description is omitted.
- the temperature sensitive actuator 2 of 2nd Embodiment is from the PTC heater arrange
- the piston 21 protrudes when the heating element 51 (see FIGS. 8 and 9) is heated and the wax W (see FIGS. 8 and 9) expands.
- a pair of fixing protrusions 42 a and 42 a are also formed on the current-carrying terminal 42 on the rear end side. Further, as shown in FIGS. 6 to 9, fixing protrusions 42a and 42a can be received on the side wall portion of the convex wall portion 12 of the second embodiment instead of the notch portion 16 of the first embodiment. Receiving portions 15 and 15 are formed. The receiving portions 15 and 15 are provided with concave portions 15a and 15a that are recessed toward the rear end side.
- the tip portion of the piston 21 is formed with a small diameter, thereby forming a stepped portion 21a.
- the piston 21 is fitted with a receiving member 22 whose front end is locked to the stepped portion 21a of the piston 21 and receives an elastic member 23 made of a return spring at a flange 22b provided at the rear end.
- the elastic member 23 formed of a return spring is disposed between the flange portion 22b and the inner surface of the convex wall portion 12 on the front end side.
- the elastic member 23 urges the piston 21 rearward through the receiving member 22 locked to the step portion 21a of the piston 21 so that the piston 21 is in a non-projecting state.
- the fixing protrusion 41a of the temperature sensitive actuator 2 is brought into contact with the rear end surface of the recess 14a by the urging force of the elastic member 23. Thereby, the temperature-sensitive actuator 2 is prevented from moving in the axial direction with respect to the automatic choke device 1.
- the fixing protrusions 41 a and 42 a of the temperature-sensitive actuator 2 are positioned in the recesses 14 a and 15 a by the urging force of the elastic member 23, and the temperature-sensitive actuator 2 rotates within the convex wall portion 12 and outside the convex portion 12. To prevent falling off.
- the elastic member 23 and the fixing protrusions 41a and 42a and the recesses 14a and 15a are firmly fixed in the convex wall 12 by the three locations.
- the temperature sensitive actuator 2 is reliably prevented from falling off from the convex wall portion 12 due to vibration or the like, and the assembly of the temperature sensitive actuator 2 is improved as compared with the conventional screwed type. Further, since a space for screwing is not required as in the prior art, the degree of freedom of arrangement of the temperature sensitive actuator 2 is improved and the automatic choke device 1 can be downsized.
- the fixing projection 41a abuts against the rear end surface of the recess 14a by the urging force of the elastic member 23, and the fixing projection 42a is spaced from the rear end surface of the recess 15a. For this reason, it is designed so that only the rear end surface of the concave portion 14a can be accurately aligned, and the depth of the concave portion 15a only needs to be designed so that a gap is generated with respect to the fixing projection 42a. It becomes easy.
- the receiving portions 14 and 15 are formed in a slit shape, and the fixing protrusions 41a and 42a are simply press-fitted into the receiving portions 14 and 15 and fixed. May be.
- the receiving portions 14 and 15 of the third embodiment are not formed with the recesses 14a and 15a of the second embodiment.
- SYMBOLS 1 Automatic choke apparatus (member to be attached), 11 ... Mounting part, 12 ... Convex wall part, 13 ... Notch part, 14 ... Receiving part, 14a ... Recessed part, 15 ... Receiving part, 15a ... Recessed part, 2 ... Temperature-sensitive actuator 21 ... Piston, 21a ... Step part, 22 ... Receiving member, 22b ... Flange part, 23 ... Elastic member (return spring), 31 ... Intake passage, 32 ... Choke valve, 33 ... Link mechanism, 41 ... First terminal, 41a ... fixing projection, 42 ... second terminal, 42a ... fixing projection, 43a, 43b ... lead wire, 51 ... heating element (PTC heater), W ... wax.
- PTC heater heating element
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Means For Warming Up And Starting Carburetors (AREA)
- Actuator (AREA)
Abstract
Description
図1~図4を参照して、本発明の感温アクチュエータ取付構造の第1実施形態について、自動チョーク装置を被取付部材として説明する。図1に示す自動チョーク装置1は、図外の汎用エンジン等に設けられた気化器に取り付けられるものであり、ピストン21を突出自在な感温アクチュエータ2と、吸気道31を閉塞自在なバタフライ型のチョーク弁32とを備える。感温アクチュエータ2のピストン21が突出すると、リンク機構33を介してチョーク弁32が開弁される。
け部材22を介してピストン21を後方へ付勢し、ピストン21を非突出状態とする。
次に、図5~図9を参照して、本発明の感温アクチュエータ取付構造の第2実施形態について説明する。第2実施形態の感温アクチュエータ2も第1実施形態と同様に被取付部材たる自動チョーク装置1に取り付けられるものであり、第1実施形態と同一の構成については、同一の符号を付すと共にその説明を省略する。
の内面との間に配置されている。弾性部材23は、ピストン21の段差部21aに係止される受け部材22を介してピストン21を後方へ付勢し、ピストン21を非突出状態とする。
第3実施形態として、図7に示すように、受入部14,15をスリット状に形成し、固定用突部41a,42aを単純に受入部14,15に圧入して固定するように構成してもよい。第3実施形態の受入部14,15には、第2実施形態の凹部14a,15aは形成されない。
Claims (2)
- 通電用端子を介して通電されることにより発熱する発熱体と、該発熱体の発熱により膨張するワックスと、該ワックスの膨張により突出するピストンと、該ピストンを非突出側に付勢する弾性部材とを有する感温アクチュエータを、被取付部材に取り付ける取付構造において、
前記感温アクチュエータの通電用端子に固定用突部が設けられ、
前記被取付部材には、前記固定用突部を前記ピストンの軸に直交する直交方向から受け入れ自在な受入部が設けられ、
該受入部に前記固定用突部が受け入れられることにより前記感温アクチュエータが固定されることを特徴とする感温アクチュエータ取付構造。 - 請求項1記載の感温アクチュエータ取付構造において、
前記受入部には、前記弾性部材の付勢方向に向って凹む凹部が形成され、
前記固定用突部は、前記弾性部材の付勢力により、前記凹部に押し付けられて固定されることを特徴とする感温アクチュエータ取付構造。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10780321.5A EP2436904B1 (en) | 2009-05-28 | 2010-02-15 | Temperature sensitive actuator |
CN201080020712.XA CN102422008B (zh) | 2009-05-28 | 2010-02-15 | 感温执行机构的安装结构 |
CA2761721A CA2761721C (en) | 2009-05-28 | 2010-02-15 | Temperature sensitive actuator attaching structure |
US13/320,752 US8820655B2 (en) | 2009-05-28 | 2010-02-15 | Temperature sensitive actuator attaching structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009129240A JP5132633B2 (ja) | 2009-05-28 | 2009-05-28 | 感温アクチュエータ取付構造 |
JP2009-129240 | 2009-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010137361A1 true WO2010137361A1 (ja) | 2010-12-02 |
Family
ID=43222487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/052142 WO2010137361A1 (ja) | 2009-05-28 | 2010-02-15 | 感温アクチュエータ取付構造 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8820655B2 (ja) |
EP (1) | EP2436904B1 (ja) |
JP (1) | JP5132633B2 (ja) |
CN (1) | CN102422008B (ja) |
CA (1) | CA2761721C (ja) |
WO (1) | WO2010137361A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6684162B2 (ja) * | 2016-06-17 | 2020-04-22 | 日本サーモスタット株式会社 | サーモアクチュエータのケーシング構造 |
JP6684163B2 (ja) * | 2016-06-17 | 2020-04-22 | 日本サーモスタット株式会社 | サーモアクチュエータのケーシング構造 |
US10302208B2 (en) * | 2016-12-05 | 2019-05-28 | Rostra Vernatherm, Llc | Control valve with external relief bias member |
JP6668319B2 (ja) * | 2017-12-27 | 2020-03-18 | 株式会社ユタカ技研 | サーモアクチュエータ |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62137596U (ja) * | 1986-02-24 | 1987-08-29 | ||
JPH07238868A (ja) * | 1994-02-28 | 1995-09-12 | Nippon Thermostat Kk | エンジンのオートスタータ装置 |
JPH0914114A (ja) * | 1995-06-30 | 1997-01-14 | Yamaha Motor Co Ltd | エンジンの点火時期制御装置 |
JP2006063864A (ja) | 2004-08-26 | 2006-03-09 | Honda Motor Co Ltd | 気化器の電動式オートチョーク装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2027928A1 (ja) * | 1970-06-06 | 1971-12-09 | Danfoss As | |
US4392608A (en) * | 1979-12-03 | 1983-07-12 | Texas Instruments Incorporated | Thermally responsive fluid and electrical switch and control system |
US4313561A (en) * | 1980-04-28 | 1982-02-02 | Eaton Corporation | Temperature control system and thermally responsive electro-vacuum relay therefor |
JPS6056877U (ja) * | 1983-09-26 | 1985-04-20 | エヌテ−シ−工業株式会社 | 熱動弁 |
JPH0442253U (ja) * | 1990-08-06 | 1992-04-09 | ||
JP2817876B2 (ja) * | 1997-02-27 | 1998-10-30 | 富士精工株式会社 | 熱動弁の漏電防止構造と弁駆動部ユニット |
ITTO20031038A1 (it) * | 2003-12-24 | 2005-06-25 | Eltek Spa | Dispositivo attuatore elettro-termico. |
JP2006274898A (ja) * | 2005-03-29 | 2006-10-12 | Aisin Seiki Co Ltd | サーモエレメントのシール構造 |
EP2111507B1 (en) * | 2007-02-12 | 2011-03-30 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
JP5383321B2 (ja) * | 2009-05-28 | 2014-01-08 | 日本サーモスタット株式会社 | 感温アクチュエータ |
-
2009
- 2009-05-28 JP JP2009129240A patent/JP5132633B2/ja active Active
-
2010
- 2010-02-15 WO PCT/JP2010/052142 patent/WO2010137361A1/ja active Application Filing
- 2010-02-15 CN CN201080020712.XA patent/CN102422008B/zh active Active
- 2010-02-15 US US13/320,752 patent/US8820655B2/en active Active
- 2010-02-15 EP EP10780321.5A patent/EP2436904B1/en active Active
- 2010-02-15 CA CA2761721A patent/CA2761721C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62137596U (ja) * | 1986-02-24 | 1987-08-29 | ||
JPH07238868A (ja) * | 1994-02-28 | 1995-09-12 | Nippon Thermostat Kk | エンジンのオートスタータ装置 |
JPH0914114A (ja) * | 1995-06-30 | 1997-01-14 | Yamaha Motor Co Ltd | エンジンの点火時期制御装置 |
JP2006063864A (ja) | 2004-08-26 | 2006-03-09 | Honda Motor Co Ltd | 気化器の電動式オートチョーク装置 |
Also Published As
Publication number | Publication date |
---|---|
US20120060362A1 (en) | 2012-03-15 |
JP2010275928A (ja) | 2010-12-09 |
CA2761721A1 (en) | 2010-12-02 |
CN102422008B (zh) | 2015-06-17 |
CN102422008A (zh) | 2012-04-18 |
EP2436904A4 (en) | 2016-11-30 |
CA2761721C (en) | 2013-07-09 |
EP2436904B1 (en) | 2021-01-20 |
JP5132633B2 (ja) | 2013-01-30 |
US8820655B2 (en) | 2014-09-02 |
EP2436904A1 (en) | 2012-04-04 |
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