JP2007138806A - Sensor fixing device for fluid machine - Google Patents

Sensor fixing device for fluid machine Download PDF

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JP2007138806A
JP2007138806A JP2005332816A JP2005332816A JP2007138806A JP 2007138806 A JP2007138806 A JP 2007138806A JP 2005332816 A JP2005332816 A JP 2005332816A JP 2005332816 A JP2005332816 A JP 2005332816A JP 2007138806 A JP2007138806 A JP 2007138806A
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sensor
fluid machine
fixing device
housing
hook
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JP4751703B2 (en
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Masaaki Takahata
正明 高畑
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Sanden Corp
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Sanden Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a sensor fixing device for a fluid machine excellent in assemblability. <P>SOLUTION: The sensor fixing device is provided with a sensor pocket 18 opening to an outer surface of a housing 4 of the fluid machine 2 and storing at least a part of a temperature sensor 10, and a fastener 2. The fastener 22 includes a plate part 24 abutting on the temperature sensor 10 from an outside of the housing 4, a rod part 26 and a hook part 28 formed as one body with the plate part 24 and mutually connecting the plate part 24 and the hosing 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、流体機械のセンサ固定装置に関する。   The present invention relates to a sensor fixing device for a fluid machine.

例えば車両用空調システムの圧縮機として用いられる流体機械には、過熱を防止するため温度センサが取り付けられる。温度センサを固定するセンサ固定装置は、流体機械のハウジングに設けられたセンサポケットを有する（例えば、特許文献１参照）。また、センサ固定装置は、センサポケットからの温度センサの抜けを防止する蓋部材を有し、蓋部材はハウジングに対して螺子により固定される。
特開平6-330860号公報 For example, a temperature sensor is attached to a fluid machine used as a compressor of an air conditioning system for a vehicle in order to prevent overheating. A sensor fixing device for fixing a temperature sensor has a sensor pocket provided in a housing of a fluid machine (see, for example, Patent Document 1). The sensor fixing device has a lid member that prevents the temperature sensor from coming off from the sensor pocket, and the lid member is fixed to the housing by a screw.
JP-A-6-330860

しかしながら、センサ固定装置の蓋部材を螺子止めする場合、作業者は、片手で蓋部材を適当な位置に固定しながら、残る片手でエアドライバ等を用いて螺子止めせねばならない。このような螺子止め作業は、作業者にとって煩雑であり、センサ固定装置の組立て性低下をもたらしている。
本発明は、このような課題に鑑みてなされたもので、その目的とするところは、組立て性に優れた流体機械のセンサ固定装置を提供することにある。 However, when the lid member of the sensor fixing device is screwed, the operator must screw the lid member with one hand using an air driver or the like while fixing the lid member at an appropriate position. Such a screwing operation is complicated for the operator and causes a decrease in the assembling property of the sensor fixing device.
The present invention has been made in view of such a problem, and an object thereof is to provide a sensor fixing device for a fluid machine that is excellent in assemblability.

上記の目的を達成するべく、本発明によれば、流体機械のハウジングの外面にて開口し、センサの少なくとも一部を収容するセンサポケットと、前記センサに前記ハウジングの外側から当接する当接部材と、前記当接部材に一体に形成され、前記当接部材と前記ハウジングとを互いに連結する連結部とを備えることを特徴とする流体機械のセンサ固定装置が提供される（請求項１）。   In order to achieve the above object, according to the present invention, a sensor pocket that opens at the outer surface of the housing of the fluid machine and accommodates at least a part of the sensor, and a contact member that contacts the sensor from the outside of the housing And a connecting portion that is integrally formed with the contact member and connects the contact member and the housing to each other (Claim 1).

好適な態様として、前記連結部は、前記当接部材から延びるロッドと、前記ロッドの先端に形成されたフックとを有し、前記ハウジングは、前記ハウジングの外面から突出する突起と、前記突起に形成され、前記フックと係合する受け部とを有する（請求項２）。
好適な態様として、前記受け部は、前記ロッドとは直交する方向に延び且つ一端に開口端を有する溝状をなし、前記突起は、前記受け部の開口端を通じた前記フックの係合方向での移動を許容し、この一方、前記係合方向とは反対方向での前記フックの移動を規制する抜け止め部を更に有する（請求項３）。 As a preferred aspect, the connecting portion includes a rod extending from the abutting member and a hook formed at a tip of the rod, and the housing includes a protrusion protruding from an outer surface of the housing, and a protrusion on the protrusion. And a receiving portion that is formed and engages with the hook.
As a preferred aspect, the receiving portion has a groove shape extending in a direction orthogonal to the rod and having an open end at one end, and the protrusion is in an engagement direction of the hook through the open end of the receiving portion. On the other hand, it further has a retaining portion for restricting the movement of the hook in the direction opposite to the engaging direction (Claim 3).

本発明の請求項１〜３の流体機械のセンサ固定装置においては、連結部が蓋部材と一体に形成されているので、その組立てが容易である。
請求項２の流体機械のセンサ固定装置においては、組立ての際にフックと受け部とを係合させればよく、その組立てが容易である。
請求項３の流体機械のセンサ固定装置においては、抜け止めにより受け部からのフックの抜けが防止されるので、センサが確実に固定される。 In the fluid machine sensor fixing device according to the first to third aspects of the present invention, since the connecting portion is formed integrally with the lid member, the assembly thereof is easy.
In the sensor fixing device for a fluid machine according to the second aspect of the present invention, it is only necessary to engage the hook and the receiving portion during assembly, and the assembly is easy.
In the sensor fixing device for a fluid machine according to the third aspect, the hook is prevented from coming off from the receiving portion by the stopper so that the sensor is securely fixed.

図１は、車両用空調装置の圧縮機としての流体機械２を示す。
流体機械２は、ハウジング４内に圧縮ユニットを有し、圧縮ユニットは、冷媒ガスの吸入工程、吸入した冷媒ガスの圧縮工程及び圧縮した冷媒ガスの吐出工程を実行する。ハウジング４の一端部には電磁クラッチ６が設けられ、エンジンの動力は電磁クラッチ６を介して圧縮ユニットに断続的に伝達される。すなわち、電磁クラッチ６のソレノイドに電力が供給されると、電磁クラッチ６では、ソレノイドの電磁力によりドライブ側ユニットとドリブン側ユニットとが連結される。 FIG. 1 shows a fluid machine 2 as a compressor of a vehicle air conditioner.
The fluid machine 2 has a compression unit in the housing 4, and the compression unit executes a refrigerant gas suction process, a suction refrigerant gas compression process, and a compressed refrigerant gas discharge process. An electromagnetic clutch 6 is provided at one end of the housing 4, and engine power is intermittently transmitted to the compression unit via the electromagnetic clutch 6. That is, when electric power is supplied to the solenoid of the electromagnetic clutch 6, the drive side unit and the driven side unit are connected in the electromagnetic clutch 6 by the electromagnetic force of the solenoid.

図１中、符号８は、電磁クラッチ６のソレノイドに給電するための電線を示し、電線８は、温度センサ１０に接続されている。また、温度センサ１０は、電線１２を通じて流体機械２の駆動回路に電気的に接続され、温度センサ１０は、電線８と電線１２との間を断続的に接続可能である。
より詳しくは、温度センサ１０は、サーモスタットとしての機能を有し、通常、駆動回路からの電力は、電線１２、温度センサ１０及び電線８を通じて電磁クラッチ６に供給される。これにより電磁クラッチ６は連結状態になり、流体機械２が作動する。流体機械２の作動中、圧縮された冷媒ガスの温度が高くなってハウジング４の温度が設定温度を超えると、温度センサ１０は電線８と電線１２との間を電気的に遮断する。これにより、駆動回路の動作に係わらず電磁クラッチ６の連結状態が解除されて流体機械２の作動が停止し、流体機械２の過熱が防止される。 In FIG. 1, reference numeral 8 denotes an electric wire for supplying power to the solenoid of the electromagnetic clutch 6, and the electric wire 8 is connected to the temperature sensor 10. The temperature sensor 10 is electrically connected to the drive circuit of the fluid machine 2 through the electric wire 12, and the temperature sensor 10 can be intermittently connected between the electric wire 8 and the electric wire 12.
More specifically, the temperature sensor 10 has a function as a thermostat, and normally, electric power from the drive circuit is supplied to the electromagnetic clutch 6 through the electric wire 12, the temperature sensor 10, and the electric wire 8. Thereby, the electromagnetic clutch 6 will be in a connection state and the fluid machine 2 will operate | move. During the operation of the fluid machine 2, when the temperature of the compressed refrigerant gas increases and the temperature of the housing 4 exceeds the set temperature, the temperature sensor 10 electrically disconnects between the electric wires 8 and 12. Thereby, the coupled state of the electromagnetic clutch 6 is released regardless of the operation of the drive circuit, the operation of the fluid machine 2 is stopped, and the fluid machine 2 is prevented from being overheated.

図２は、図１の温度センサ１０の近傍を拡大して示し、温度センサ１０は本発明の一実施形態のセンサ固定装置により流体機械２に固定されている。
より詳しくは、温度センサ１０は、図３に示したように、円筒部１４と円筒部１４の一端に連なるヘッド部１６とを有する。ヘッド部１６の４つの側面のうち１つの側面からは電線８,１２が延び、この側面とは反対側のヘッド部１６の側面は、円筒部１４よりも曲率半径が若干大の半円筒形状の曲面により構成されている。 2 shows an enlarged view of the vicinity of the temperature sensor 10 of FIG. 1, and the temperature sensor 10 is fixed to the fluid machine 2 by the sensor fixing device of one embodiment of the present invention.
More specifically, the temperature sensor 10 includes a cylindrical portion 14 and a head portion 16 connected to one end of the cylindrical portion 14 as shown in FIG. The electric wires 8 and 12 extend from one of the four side surfaces of the head portion 16, and the side surface of the head portion 16 opposite to the side surface has a semi-cylindrical shape with a slightly larger radius of curvature than the cylindrical portion 14. It is composed of a curved surface.

センサ固定装置は、図３及び４に示したように、ハウジング４に形成された円筒状の凹所をセンサポケット１８として有し、センサポケット１８は温度センサ１０の円筒部１４を収容する。なお、センサポケット１８の底面と温度センサ１０の円筒部１４との間には、シリコン樹脂層１９が形成される。
センサポケット１８はハウジング４の外面にて開口し、センサポケット１８の開口縁近傍からは、Ｕ字形の平面形状を有する壁２０が突出している。壁２０は、互いに平行な直線部と、直線部の端同士を結ぶ湾曲部とを有する。壁２０は、電線８,１２が延び出ている側面を除いてヘッド部１６を囲み、壁２０の湾曲部がヘッド部の曲面に当接する。 As shown in FIGS. 3 and 4, the sensor fixing device has a cylindrical recess formed in the housing 4 as the sensor pocket 18, and the sensor pocket 18 accommodates the cylindrical portion 14 of the temperature sensor 10. A silicon resin layer 19 is formed between the bottom surface of the sensor pocket 18 and the cylindrical portion 14 of the temperature sensor 10.
The sensor pocket 18 opens at the outer surface of the housing 4, and a wall 20 having a U-shaped planar shape protrudes from the vicinity of the opening edge of the sensor pocket 18. The wall 20 has a linear part parallel to each other and a curved part connecting the ends of the linear part. The wall 20 surrounds the head portion 16 except for the side surface from which the electric wires 8 and 12 extend, and the curved portion of the wall 20 contacts the curved surface of the head portion.

一方、センサ固定装置は金属製の留具２２を有し、留具２２は、センサポケット１８及び壁２０からの温度センサ１０の抜けを防止する。
より詳しくは、留具２２は、温度センサ１０のヘッド部１６の端面に外側から当接する帯状の板部２４を有し、板部２４の両端には、ロッド部２６が直角に連なっている。これらロッド部２６の先端には、互いに向けて突出したフック２８が形成され、フック２８と係合可能な一対の受け部３０が、壁２０の直線部の根元近傍に形成されている。受け部３０は、ハウジング４の外面と略平行な溝状をなし、各受け部３０は、壁２０の湾曲部側に開口端を有する。 On the other hand, the sensor fixing device includes a metal fastener 22, which prevents the temperature sensor 10 from coming off from the sensor pocket 18 and the wall 20.
More specifically, the fastener 22 has a belt-like plate portion 24 that comes into contact with the end surface of the head portion 16 of the temperature sensor 10 from the outside, and rod portions 26 are connected to both ends of the plate portion 24 at a right angle. At the tips of these rod portions 26, hooks 28 projecting toward each other are formed, and a pair of receiving portions 30 that can be engaged with the hooks 28 are formed in the vicinity of the base of the straight portion of the wall 20. The receiving portions 30 have a groove shape substantially parallel to the outer surface of the housing 4, and each receiving portion 30 has an open end on the curved portion side of the wall 20.

また、板部２４の温度センサ１０側の面には、一対のくさび状の突起３２が形成され、突起３２は、ヘッド部１６を板部２４の長さ方向両側から挟み付けている。
更に、板部２４には、その中央から幅方向に突出した幅広部３４が形成されている。幅広部３４は、壁２０の湾曲部に形成され、直線部よりも更に突出したストッパ３６の側面に当接している。 A pair of wedge-shaped projections 32 are formed on the surface of the plate portion 24 on the temperature sensor 10 side, and the projections 32 sandwich the head portion 16 from both sides in the length direction of the plate portion 24.
Further, the plate portion 24 is formed with a wide portion 34 protruding in the width direction from the center thereof. The wide portion 34 is formed in the curved portion of the wall 20 and is in contact with the side surface of the stopper 36 that protrudes further than the straight portion.

上述したセンサ固定装置により、流体機械２に温度センサ１０を固定するには、まず、温度センサ１０の円筒部１４をセンサポケット１８に配置する。この後、留具２２にて温度センサ１０を固定するが、この際、留具２２のフック２８を受け部３０内にその開口端から滑り込ませてから、幅広部３４がストッパ３６を完全に乗り越えるまで、留具２２を壁２０の直線部と略平行に、すなわち板部２４の略幅方向に移動させる。留具２２の幅広部３４がストッパ３６を乗り越えると、板部２４が温度センサ１０のヘッド部１６の端面に当接した状態で、フック２８と受け部３０とが係合する。一方、ストッパ３６を乗り越えた留具２２の幅広部３４は、ヘッド部１６の端面よりも突出したストッパ３６の部分に当接し、逆方向での留具２２の移動が規制される。   In order to fix the temperature sensor 10 to the fluid machine 2 by the sensor fixing device described above, first, the cylindrical portion 14 of the temperature sensor 10 is disposed in the sensor pocket 18. Thereafter, the temperature sensor 10 is fixed by the fastener 22. At this time, after the hook 28 of the fastener 22 is slid into the receiving portion 30 from the opening end, the wide portion 34 completely gets over the stopper 36. The fastener 22 is moved substantially in parallel with the straight portion of the wall 20, that is, in the substantially width direction of the plate portion 24. When the wide portion 34 of the fastener 22 gets over the stopper 36, the hook 28 and the receiving portion 30 engage with each other in a state where the plate portion 24 is in contact with the end surface of the head portion 16 of the temperature sensor 10. On the other hand, the wide portion 34 of the clip 22 that has passed over the stopper 36 abuts against the portion of the stopper 36 that protrudes beyond the end surface of the head portion 16, and the movement of the clip 22 in the reverse direction is restricted.

上述したセンサ固定装置によれば、留具２２、すなわち、板部２４、ロッド部２６及びフック２８が一体に形成されているので、流体機械２への温度センサ１０の取付けに際し、センサ固定装置の組立てが容易である。
また、このセンサ固定装置によれば、組立ての際にフック２８と受け部３０とを係合させるのみでよく、その組立てが容易である。 According to the sensor fixing device described above, the fastener 22, that is, the plate portion 24, the rod portion 26, and the hook 28 are integrally formed. Therefore, when the temperature sensor 10 is attached to the fluid machine 2, the sensor fixing device is Easy to assemble.
Further, according to this sensor fixing device, it is only necessary to engage the hook 28 and the receiving portion 30 during assembly, and the assembly is easy.

更に、このセンサ固定装置によれば、ストッパ３６に対して幅広部３４が当接することにより受け部３０からのフック２８の抜けが防止されるので、温度センサ１０が確実に固定される。
本発明は上述した一実施形態に限定されるものではなく、種々の変形が可能であり、例えば、留具２２は樹脂製であってもよい。 Furthermore, according to this sensor fixing device, the hook 28 is prevented from coming off from the receiving portion 30 when the wide portion 34 abuts against the stopper 36, so that the temperature sensor 10 is fixed securely.
The present invention is not limited to the above-described embodiment, and various modifications are possible. For example, the fastener 22 may be made of resin.

また、留具２２のロッド部２６に弾性を付与してもよく、この場合、受け部３０が開口端を有していなくても、ロッド部２６の弾性変形によりフック２８同士の間隔を押し広げれば、フック２８と受け部３０とを係合させることができる。また、この場合、ストッパ３６が無くても、受け部３０からのフック２８の抜けがロッド部２６の弾性により防止される。   Further, elasticity may be imparted to the rod portion 26 of the fastener 22, and in this case, even if the receiving portion 30 does not have an open end, the spacing between the hooks 28 can be increased by elastic deformation of the rod portion 26. In this case, the hook 28 and the receiving part 30 can be engaged. In this case, even if the stopper 36 is not provided, the hook 28 is prevented from coming off from the receiving portion 30 due to the elasticity of the rod portion 26.

更に、留具２２の突起３２は無くてもよいが、突起３２により温度センサ１０のがたつきを防止するのが好ましい。   Furthermore, although the protrusion 32 of the fastener 22 may be omitted, it is preferable that the protrusion 32 prevents the temperature sensor 10 from rattling.

本発明の一実施形態のセンサ固定装置を適用した流体機械の平面図である。It is a top view of the fluid machine to which the sensor fixing device of one embodiment of the present invention is applied. 図１のセンサ固定装置近傍の拡大図である。It is an enlarged view of the sensor fixing device vicinity of FIG. 図１のセンサ固定装置を分解して概略的に示す斜視図である。It is a perspective view which decomposes | disassembles and shows schematically the sensor fixing device of FIG. 図２のIV-IV線に沿う断面図である。It is sectional drawing which follows the IV-IV line of FIG.

符号の説明Explanation of symbols

２ 流体機械
４ ハウジング
１０ 温度センサ
１８ ポケット
２２ 留具
２４ 板部（当接部材）
２６ ロッド部（連結部）
２８ フック（連結部） 2 Fluid machine 4 Housing 10 Temperature sensor 18 Pocket 22 Fastener 24 Plate part (contact member)
26 Rod part (connecting part)
28 Hook (connection part)

Claims (3)

流体機械のハウジングの外面にて開口し、センサの少なくとも一部を収容するセンサポケットと、
前記センサに前記ハウジングの外側から当接する当接部材と、
前記当接部材に一体に形成され、前記当接部材と前記ハウジングとを互いに連結する連結部と
を備えることを特徴とする流体機械のセンサ固定装置。 A sensor pocket that opens at the outer surface of the housing of the fluid machine and houses at least a portion of the sensor;
A contact member that contacts the sensor from the outside of the housing;
A sensor fixing device for a fluid machine, comprising: a connecting portion that is integrally formed with the contact member and connects the contact member and the housing to each other. 前記連結部は、
前記当接部材から延びるロッドと、
前記ロッドの先端に形成されたフックと
を有し、
前記ハウジングは、
前記ハウジングの外面から突出する突起と、
前記突起に形成され、前記フックと係合する受け部と
を有する
ことを特徴とする請求項１に記載の流体機械のセンサ固定装置。 The connecting portion is
A rod extending from the contact member;
A hook formed at the tip of the rod;
The housing is
A protrusion protruding from the outer surface of the housing;
The sensor fixing device for a fluid machine according to claim 1, further comprising a receiving portion that is formed on the protrusion and engages with the hook. 前記受け部は、前記ロッドとは直交する方向に延び且つ一端に開口端を有する溝状をなし、
前記突起は、前記受け部の開口端を通じた前記フックの係合方向での移動を許容し、この一方、前記係合方向とは反対方向での前記フックの移動を規制する抜け止め部を更に有する
ことを特徴とする請求項２に記載の流体機械のセンサ固定装置。 The receiving portion has a groove shape extending in a direction orthogonal to the rod and having an open end at one end,
The protrusion allows movement in the engagement direction of the hook through the opening end of the receiving portion, and further has a retaining portion for restricting movement of the hook in a direction opposite to the engagement direction. The sensor fixing device for a fluid machine according to claim 2, comprising:
JP2005332816A 2005-11-17 2005-11-17 Sensor fixing device for fluid machinery Expired - Fee Related JP4751703B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100933268B1 (en) 2008-08-05 2009-12-22 학교법인 두원학원 Compressor
JP2011080458A (en) * 2009-10-12 2011-04-21 Denso Corp Compressor
CN109822340A (en) * 2018-02-22 2019-05-31 耐思瑞股份有限公司 The method that positive-displacement metering pump is mounted on operating position
DE102020131351A1 (en) 2020-11-26 2022-06-02 Viessmann Climate Solutions Se compressor

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JPH0626461A (en) * 1992-07-09 1994-02-01 Toshiba Corp Electrical equipment protector for compressor
JPH09273481A (en) * 1996-04-08 1997-10-21 Zexel Corp Fixing structure for exposed electrical equipment in compressor

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JPH0626461A (en) * 1992-07-09 1994-02-01 Toshiba Corp Electrical equipment protector for compressor
JPH09273481A (en) * 1996-04-08 1997-10-21 Zexel Corp Fixing structure for exposed electrical equipment in compressor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100933268B1 (en) 2008-08-05 2009-12-22 학교법인 두원학원 Compressor
WO2010016697A2 (en) * 2008-08-05 2010-02-11 두원공과대학교 Compressor
WO2010016697A3 (en) * 2008-08-05 2010-04-01 두원공과대학교 Compressor
US8858197B2 (en) 2008-08-05 2014-10-14 Doowon Technical College Compressor with sensor and valve plate arrangement
DE112009001862B4 (en) * 2008-08-05 2016-01-14 Doowon Electronic Co., Ltd. compressor
JP2011080458A (en) * 2009-10-12 2011-04-21 Denso Corp Compressor
CN109822340A (en) * 2018-02-22 2019-05-31 耐思瑞股份有限公司 The method that positive-displacement metering pump is mounted on operating position
CN109822340B (en) * 2018-02-22 2021-06-22 耐思瑞股份有限公司 Method for mounting a volumetric metering pump in a working position
DE102020131351A1 (en) 2020-11-26 2022-06-02 Viessmann Climate Solutions Se compressor

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