JP4812348B2 - Motorized valve - Google Patents

Motorized valve Download PDF

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JP4812348B2
JP4812348B2 JP2005201083A JP2005201083A JP4812348B2 JP 4812348 B2 JP4812348 B2 JP 4812348B2 JP 2005201083 A JP2005201083 A JP 2005201083A JP 2005201083 A JP2005201083 A JP 2005201083A JP 4812348 B2 JP4812348 B2 JP 4812348B2
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rectifying
valve
valve body
refrigerant
valve chamber
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JP2007016958A (en
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浩次 樋口
健資 田渕
哲也 青木
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Fujikoki Corp
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Fujikoki Corp
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Description

本発明は、冷凍サイクルに配設されて冷媒の流量を制御する電動弁に関する。   The present invention relates to a motor-operated valve that is disposed in a refrigeration cycle and controls the flow rate of a refrigerant.

冷媒の流量を制御する電動弁にあっては、冷媒が弁室を通過する際に流動音を発生させる。
下記特許文献は、この流動音を低減する電動弁を開示している。
特開2005−3336号公報
In the electric valve that controls the flow rate of the refrigerant, a flow noise is generated when the refrigerant passes through the valve chamber.
The following patent document discloses a motor-operated valve that reduces this flow noise.
JP 2005-3336 A

弁体が装備されている弁室内に流入する冷媒は、液相冷媒中に気相冷媒が泡沫として混入される状態が起こる。
この泡沫が成長して大きな気泡となると、弁室内を通過する際に衝突音を発生し、騒音の原因となる。
本発明の目的は、気泡により発生する騒音の低減を図る電動弁を提供することにある。
In the refrigerant flowing into the valve chamber equipped with the valve body, a state occurs in which the gas-phase refrigerant is mixed in the liquid-phase refrigerant as foam.
When this foam grows into large bubbles, a collision sound is generated when passing through the valve chamber, causing noise.
An object of the present invention is to provide a motor-operated valve that reduces noise generated by bubbles.

上記目的を達成するために、本発明の電動弁は、弁室と弁室の軸線方向に形成されるオリフィスを有する弁本体と、弁室に配設される弁体と、弁体をオリフィスに対して離接する電動手段と、弁室の軸線に直交する方向に設けられる冷媒通路と、冷媒通路およびオリフィスに連通される1対の配管を備えるとともに、配管と弁本体との間に配設され複数の整流穴を有する冷媒の整流部材を備え、整流部材はフランジを有し底面に整流穴を有するカップ状の部材であって、フランジが配管の端面と弁本体に有する開口部との間で固定される。 In order to achieve the above object, an electric valve of the present invention includes a valve body having an orifice formed in the axial direction of the valve chamber and the valve chamber, a valve body disposed in the valve chamber, and the valve body as an orifice. disposed between the electric drive means in contact away for a coolant passage provided in a direction perpendicular to the axis of the valve chamber, provided with a pipe pair in communication with the coolant passage and the orifice, the piping and the valve body It is provided with a rectifying member of a refrigerant having a plurality of rectifying holes, straightening member is a cup-shaped member to have a rectifying holes on the bottom have a flange, the flange of the aperture having the end face and the valve body of the pipe Fixed between.

そして、整流部材は中央に配設される第1の整流穴と、第1の整流穴の周囲に配置される複数の第2の整流穴を備え、第2の整流穴の径寸法は、第1の整流穴の径寸法より小さな寸法を有するものである。   The rectifying member includes a first rectifying hole arranged in the center and a plurality of second rectifying holes arranged around the first rectifying hole, and the diameter dimension of the second rectifying hole is It has a size smaller than the diameter size of one straightening hole.

本発明は以上の手段を備えることにより、弁室に流入する冷媒中の大きな気泡により発生する衝突音を低減することができる。   By providing the above means, the present invention can reduce a collision sound generated by large bubbles in the refrigerant flowing into the valve chamber.

図1は本発明の電動弁の全体構成を示す説明図である。
全体を符号1で示す電動弁は、黄銅等で作成される弁本体10を有する。弁本体10は弁体が挿入される弁室14とオリフィス12と弁室の軸線に直交する方向に設けられる冷媒通路16を有し、冷媒通路16に連通する配管20とオリフィス12に連通する配管22が固着される。
FIG. 1 is an explanatory diagram showing the overall configuration of the motor-operated valve of the present invention.
The motor-operated valve indicated as a whole by reference numeral 1 has a valve body 10 made of brass or the like. The valve body 10 includes a valve chamber 14 into which the valve body is inserted, an orifice 12, and a refrigerant passage 16 provided in a direction perpendicular to the axis of the valve chamber, and a pipe 20 communicating with the refrigerant passage 16 and a pipe communicating with the orifice 12. 22 is fixed.

弁本体10には、ナット部材30を介してモータユニット50の軸受52が取付けられる。
モータユニット50は、モータ54と減速装置56を有し、減速された出力は、出力軸60を介してドライバー62に伝達される。
A bearing 52 of a motor unit 50 is attached to the valve body 10 via a nut member 30.
The motor unit 50 includes a motor 54 and a speed reduction device 56, and the reduced output is transmitted to the driver 62 via the output shaft 60.

軸受52の中心部にはねじ軸64が螺合し、ドライバー62によりねじ軸64は回転駆動され、軸方向に移動する。ねじ軸64の移動は、ボール70、受け部材72を介して弁軸80に伝達される。弁軸80の先端には弁体82が取り付けてあり、オリフィス12からのリフト量により通過する冷媒の流量を制御する。   A screw shaft 64 is screwed into the central portion of the bearing 52, and the screw shaft 64 is rotationally driven by the driver 62 to move in the axial direction. The movement of the screw shaft 64 is transmitted to the valve shaft 80 via the ball 70 and the receiving member 72. A valve body 82 is attached to the tip of the valve shaft 80, and the flow rate of the refrigerant passing therethrough is controlled by the lift amount from the orifice 12.

弁軸80の外周部にはベローズ92が配設され、リング部材90により弁本体10に固着される。このベローズ92により、弁室14側とモータユニット50の間がシールされる。   A bellows 92 is disposed on the outer peripheral portion of the valve shaft 80 and is fixed to the valve body 10 by a ring member 90. The bellows 92 seals between the valve chamber 14 side and the motor unit 50.

図2は、弁本体10とその内部の構造の詳細を示し、(a)は断面図、(b)は(a)の左側面図、(c)は下面図である。
第1の配管20と弁室14の間には、冷媒通路16が設けられる。そして、冷媒通路には冷媒の整流部材100が挿入される。
同様に第2の配管22が固着されるオリフィス12に対向して冷媒の整流部材100が挿入される。
2A and 2B show details of the valve body 10 and the internal structure thereof. FIG. 2A is a sectional view, FIG. 2B is a left side view of FIG. 2A, and FIG.
A refrigerant passage 16 is provided between the first pipe 20 and the valve chamber 14. A refrigerant flow regulating member 100 is inserted into the refrigerant passage.
Similarly, the refrigerant rectifying member 100 is inserted facing the orifice 12 to which the second pipe 22 is fixed.

図3は整流部材100の詳細を示す。
整流部材100は、カップ状の部材であって、取付用のフランジ102を有する。このフランジ102を配管20,22により押圧することにより、整流部材100は弁本体10の開口部に固定される。
整流部材100は、弁室14に対して流入・流出する冷媒を整流するための複数の整流穴を有する。整流穴は、中心に設けられる第1の整流穴110と第1の整流穴110の周囲に配置される複数の第2の整流穴120により構成される。
この整流部材100はパンチングプレートを素材としてプレス加工により製作することもできる。
FIG. 3 shows details of the rectifying member 100.
The flow regulating member 100 is a cup-shaped member and has a mounting flange 102. The rectifying member 100 is fixed to the opening of the valve body 10 by pressing the flange 102 with the pipes 20 and 22.
The rectifying member 100 has a plurality of rectifying holes for rectifying the refrigerant flowing into and out of the valve chamber 14. The rectifying hole is configured by a first rectifying hole 110 provided at the center and a plurality of second rectifying holes 120 arranged around the first rectifying hole 110.
The rectifying member 100 can also be manufactured by pressing using a punching plate as a material.

第1の配管20又は第2の配管22から弁室14に流入しようとする冷媒は、この整流部材100を通過する間に整流される。
この作用により弁室を通過する冷媒の通過音は低減される。
また、整流穴110,120の径寸法は、弁本体10に形成される冷媒通路の径寸法に比べて小さな寸法に設定されている。
さらに、第2の整流穴120の径寸法は、第1の整流穴110の径寸法より小さく設定されている。
The refrigerant that is about to flow into the valve chamber 14 from the first pipe 20 or the second pipe 22 is rectified while passing through the rectifying member 100.
By this action, the passing sound of the refrigerant passing through the valve chamber is reduced.
Further, the diameter dimensions of the rectifying holes 110 and 120 are set to be smaller than the diameter dimension of the refrigerant passage formed in the valve body 10.
Further, the diameter dimension of the second rectifying hole 120 is set smaller than the diameter dimension of the first rectifying hole 110.

従って、冷媒中に混入する気泡のうちで大きな気泡はこの整流穴を通過することができず、大きな気泡が弁室に流入する際に発生する騒音は防止される。
さらに、この整流穴は大きな気泡を細分化する機能を有する。この作用によって気泡は細分化され、冷媒通過音の低減に資するものである。
Therefore, large bubbles among the bubbles mixed in the refrigerant cannot pass through the rectifying hole, and noise generated when the large bubbles flow into the valve chamber is prevented.
Further, the rectifying hole has a function of subdividing large bubbles. By this action, the bubbles are subdivided and contribute to the reduction of refrigerant passing sound.

本発明の電動弁の全体構成を示す説明図。Explanatory drawing which shows the whole structure of the motor operated valve of this invention. 弁本体の説明図。Explanatory drawing of a valve main body. 整流部材の説明図。Explanatory drawing of a baffle member.

符号の説明Explanation of symbols

1 電動弁
10 弁本体
12 オリフィス
14 弁室
16 冷媒通路
20,22 配管
50 モータユニット
62 ドライバー
64 ねじ軸
80 弁軸
82 弁体
100 整流部材
DESCRIPTION OF SYMBOLS 1 Motorized valve 10 Valve main body 12 Orifice 14 Valve chamber 16 Refrigerant passage 20,22 Piping 50 Motor unit 62 Driver 64 Screw shaft 80 Valve shaft 82 Valve body 100 Rectification member

Claims (3)

弁室と該弁室の軸線方向に形成されるオリフィスを有する弁本体と、前記弁室に配設される弁体と、該弁体を前記オリフィスに対して離接する電動手段と、前記弁室の軸線に直交する方向に設けられる冷媒通路と、該冷媒通路および前記オリフィスに連通される1対の配管を備える電動弁であって、
記配管と前記弁本体との間に配設され複数の整流穴を有する冷媒の整流部材を備え、
前記整流部材はフランジを有し底面に前記整流穴を有するカップ状の部材であって、前記フランジが前記配管の端面と前記弁本体に有する開口部との間で固定される電動弁。
A valve body having a valve chamber and an orifice formed in an axial direction of the valve chamber; a valve body disposed in the valve chamber; an electric means for separating and contacting the valve body with respect to the orifice; and the valve chamber An electrically operated valve comprising a refrigerant passage provided in a direction perpendicular to the axis of the refrigerant passage and a pair of pipes communicating with the refrigerant passage and the orifice,
Disposed between said valve body and pre-Sharing, ABS pipe provided with a rectifying member of a refrigerant having a plurality of rectifying holes,
The rectifying member is a cup-shaped member to have a the rectifying holes on the bottom have a flange, an electric valve which said flange is secured between the opening having in the valve body and the end face of the pipe.
前記整流部材は中央に配設される第1の整流穴と、該第1の整流穴の周囲に配置される複数の第2の整流穴を備える請求項1記載の電動弁。   The motor-operated valve according to claim 1, wherein the rectifying member includes a first rectifying hole disposed in the center and a plurality of second rectifying holes disposed around the first rectifying hole. 前記第2の整流穴の径寸法は、前記第1の整流穴の径寸法より小さな寸法を有する請求項2記載の電動弁。   The motor-operated valve according to claim 2, wherein a diameter dimension of the second rectifying hole is smaller than a diameter dimension of the first rectifying hole.
JP2005201083A 2005-07-11 2005-07-11 Motorized valve Active JP4812348B2 (en)

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KR101268326B1 (en) * 2010-05-13 2013-05-28 한라비스테온공조 주식회사 Thermal expansion valve and air conditioning device for vehicles using the expansion valve
JP7029169B2 (en) 2018-07-25 2022-03-03 株式会社不二工機 Solenoid valve
CN111829216A (en) * 2019-04-23 2020-10-27 浙江盾安禾田金属有限公司 Electronic expansion valve and refrigerator with same
CN110513532A (en) * 2019-08-15 2019-11-29 浙江盾安禾田金属有限公司 Valve muffler and electric expansion valve with the valve muffler
JP7365188B2 (en) * 2019-10-10 2023-10-19 株式会社鷺宮製作所 control valve
CN117267455A (en) * 2022-06-14 2023-12-22 浙江盾安人工环境股份有限公司 Noise reduction device, electronic expansion valve and noise reduction method

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JPH0626738A (en) * 1992-07-08 1994-02-04 Hitachi Ltd Air conditioning apparatus
JPH07146032A (en) * 1993-11-26 1995-06-06 Matsushita Seiko Co Ltd Expansion valve
JP3821918B2 (en) * 1997-07-07 2006-09-13 株式会社本山製作所 Control valve cage, control valve and piping silencer

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