WO2021085711A1 - Actionneur pour vanne de commutation multidirectionnelle - Google Patents

Actionneur pour vanne de commutation multidirectionnelle Download PDF

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Publication number
WO2021085711A1
WO2021085711A1 PCT/KR2019/015256 KR2019015256W WO2021085711A1 WO 2021085711 A1 WO2021085711 A1 WO 2021085711A1 KR 2019015256 W KR2019015256 W KR 2019015256W WO 2021085711 A1 WO2021085711 A1 WO 2021085711A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
actuator
valve
selector valve
detection sensor
Prior art date
Application number
PCT/KR2019/015256
Other languages
English (en)
Korean (ko)
Inventor
조형근
Original Assignee
주식회사 코렌스
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
Application filed by 주식회사 코렌스 filed Critical 주식회사 코렌스
Publication of WO2021085711A1 publication Critical patent/WO2021085711A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/12—Covers for housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

Definitions

  • the present invention relates to an actuator used in a multi-directional selector valve, and more particularly, to an actuator for a multi-directional selector valve with improved durability and capable of precisely controlling the rotation angle and opening and closing of the selector valve.
  • valve devices built into a vehicle is provided for flow, distribution, control or regulation of various types of fluids according to applications such as engine cooling, room temperature cooling/heating, exhaust gas recirculation (EGR system), and the like.
  • EGR system exhaust gas recirculation
  • the multi-directional switching valve that has multiple cooling water flow paths installed to control the flow direction of the cooling water in various directions.
  • the multi-directional switching valve is installed in the cooling water passage for efficient thermal management of the cooling water cooled by the radiator, and appropriately controls the cooling water temperature by opening and closing the passage according to the change in the cooling water temperature.
  • a conventional multi-directional switching valve includes a body having a plurality of outlet ports communicating with a coolant flow path, a valve bracket rotatably installed in the body to open and close the outlet port, and a valve bracket connected to the upper portion of the body. It is configured to include an actuator to rotate.
  • Such a conventional multi-directional switching valve has an advantage in that it is possible to increase the engine efficiency of a vehicle because it is possible to provide coolant introduced from the outside in various directions according to various conditions.
  • the actuator in order to accurately and quickly control the discharge direction of the coolant, the actuator must rotate the valve bracket as quickly as the correct angle.However, since a large number of sensors and measuring equipment are required to measure the rotation angle of the valve bracket, the standard of the actuator is increased. The downside is that it gets complicated. In addition, when the internal structure of the actuator for measuring the rotation angle of the valve bracket becomes complicated, the durability decreases, and the lifespan is shortened.
  • the present invention has been proposed in order to solve the above problems, and an object of the present invention is to provide an actuator for a multi-directional switch valve with improved durability and capable of precisely controlling the rotation angle and opening and closing of the valve.
  • the actuator for a multi-directional selector valve is an actuator for rotating a valve shaft of a multi-directional selector valve having a plurality of outlet ports, and is mounted on the upper side of the multi-directional selector valve.
  • the end of the valve shaft is inserted into the housing;
  • a motor mounted inside the housing to generate a rotational force;
  • a driving gear that receives rotational force generated by the motor and rotates the valve shaft;
  • a magnet disposed to surround the rotation axis of the drive gear;
  • a detection sensor mounted to be spaced upward or downward from the magnet to detect a change in a magnetic field generated when the magnet rotates; And a cover covering an upper portion of the housing so that the magnet and the detection sensor are inserted therein.
  • the magnet is formed such that one of the inner end and the outer end has a circular shape and the other has a polygonal shape, and an insertion groove into which the magnet is inserted is formed on an upper surface of the driving gear.
  • a slip prevention groove is formed on the bottom surface of the drive gear, and an insertion protrusion inserted into the slip prevention groove is provided at an upper end of the valve shaft.
  • the detection sensor is located on the rotation shaft of the driving gear, and the inner diameter of the magnet is formed to a size that allows the detection sensor to pass.
  • the magnet is mounted on the bottom surface of the printed circuit board.
  • the inner diameter of the magnet is formed larger than the outer diameter of the valve shaft.
  • the detection sensor is configured to detect a magnetic field of 10 mT or more and 80 mT or less when the magnet is rotated integrally with the driving gear.
  • the use of the actuator for a multi-directional selector valve according to the present invention has the advantage that the rotation angle and opening and closing of the valve can be precisely controlled, and the internal configuration is simplified, thereby improving the durability of the multi-directional selector valve.
  • the actuator for a multi-directional switching valve according to the present invention has the advantage that the detection sensor can continuously detect the change in the magnetic field of the magnet, and the phenomenon that the magnet is arbitrarily rotated while mounted on the driving gear does not occur.
  • FIG. 1 is an exploded perspective view showing a structure in which an actuator according to the present invention is mounted on a multi-directional selector valve.
  • FIG. 2 is a cross-sectional view of an actuator for a multi-directional selector valve according to the present invention.
  • FIG 3 is an exploded perspective view of an actuator for a multi-directional selector valve according to the present invention.
  • FIG. 4 is a bottom perspective view of a gear and a printed circuit board included in the actuator for a multi-directional switching valve according to the present invention.
  • FIG. 5 is a perspective view showing a coupling structure of a gear included in the actuator for a multi-directional selector valve according to the present invention.
  • FIG. 6 is a perspective view showing a coupling structure of a magnet included in the actuator for a multi-directional selector valve according to the present invention.
  • FIG. 7 and 8 are plan and side views showing an arrangement structure of a magnet and a detection sensor.
  • FIG. 1 is an exploded perspective view showing a structure in which an actuator according to the present invention is mounted on a multidirectional selector valve
  • FIG. 2 is a cross-sectional view of an actuator for a multidirectional selector valve according to the present invention
  • FIG. 3 is It is an exploded perspective view of an actuator for a switching valve.
  • FIG. 4 is a bottom perspective view of a gear and a printed circuit board included in the actuator for a multi-directional selector valve according to the present invention
  • FIG. 5 is a diagram showing a coupling structure of the gear included in the actuator for a multi-directional selector valve according to the present invention. It is a perspective view.
  • the multi-directional selector valve 100 has a body 110 having a plurality of outlet ports 112, and is inserted into the body 110, but any one
  • the valve bracket 120 for communicating the outlet port 112 to the other outlet port 112 is coupled to be arranged along the vertical central axis of the valve bracket 120 to rotate integrally with the valve bracket 120. It is configured to include a valve shaft (130).
  • the valve bracket 120 is provided with a plurality of valve holes 122, and when the valve hole 122 is rotated while being mounted inside the body 110, the valve hole 122 communicates with the outlet port 112 or partially flows. It can be slightly open or blocked to control the. Therefore, depending on how much the valve bracket 120 is rotated, it is determined through which outlet port 112 the fluid flows in and through which outlet port 112 the fluid is discharged. For example, when the coolant discharged from the engine flows into the multi-directional selector valve 100 through any one of the outlet ports 112, the coolant depends on how much the valve bracket 120 is rotated. It can be discharged by adjusting the flow rate in the direction of the set outlet.
  • valve shaft 130 protrudes upward of the body 110, and an insertion protrusion 132 is provided at the upper end of the valve shaft 130. Accordingly, as the actuator 200 rotates the insertion protrusion 132, the valve shaft 130 and the valve bracket 120 coupled thereto are rotated, and a flow path of the fluid is selected.
  • each part of the body 110 is sealed so that the coolant flowing into the body 110 can flow out only through the outlet port 112.
  • three outlet ports in one body 110 so that the cooling water introduced through any one outlet port 112 can be selectively discharged to one of the remaining two outlet ports 112. 112) is installed only, but the number of the outlet ports 112 can be freely changed according to the designer's choice.
  • Such a multi-directional selector valve 100 has been commercially used in a conventional vehicle cooling water distribution device, and a detailed description of the multi-directional selector valve 100 will be omitted.
  • the actuator 200 for a multi-directional selector valve is a device for operating the multi-directional selector valve 100 by rotating the valve shaft 130, and the valve shaft 130 and the valve bracket 120 coupled thereto
  • the biggest feature of the configuration is that it is configured to precisely detect the rotation of ).
  • the actuator 200 for a multidirectional selector valve is a device for rotating the valve shaft 130 of the multidirectional selector valve 100 having a plurality of outlet ports 112, and the multidirectional switch
  • the housing 210 is mounted on the upper side of the valve 100 and the end of the valve shaft 130 is inserted into the housing 210, the motor 220 is mounted inside the housing 210 to generate rotational force, and the motor A drive gear 240 that rotates the valve shaft 130 by receiving a rotational force generated from 220, a magnet 250 disposed to surround the rotational shaft of the drive gear 240, and the magnet 250
  • a detection sensor 270 that is mounted to be spaced upward from the magnet 250 to detect a change in a magnetic field generated when the magnet 250 rotates, and the housing 210 so that the magnet 250 and the detection sensor 270 are inserted into the interior.
  • It is configured to include a cover 280 covering the upper part. In this embodiment, only the case where the detection sensor 270 is spaced upward from the magnet 250 is illustrated, but the detection sensor 270
  • the housing 210 has an internal space of a certain size so that it can be mounted inside the motor 220 and the driving gear 240, and a portion corresponding to the insertion protrusion 132 protruding upward of the body 110 is It is open. Accordingly, the insertion protrusion 132 provided at the upper end of the valve shaft 130 passes through the housing 210 and is fastened to the driving gear 240.
  • the reduction gear 230 is a component that transmits the rotational force of the motor 220 to the driving gear 240, but functions to reduce the rotational force of the motor 220, and between the motor 220 and the driving gear 240 Is placed in At this time, both the driving gear 240 and the reduction gear 230 should be mounted so that they can rotate only and not move inside the housing 210. In this embodiment, only the case where the two reduction gears 230 reduce the rotational force of the motor 220 is shown, but the number and arrangement structure of the reduction gears 230 may be variously changed according to the user's selection. .
  • the inner diameter of the magnet 250 is preferably formed larger than the outer diameter of the valve shaft 130 so that the valve shaft 130 and the magnet 250 do not interfere with each other.
  • the detection sensor 270 can be applied to various types of sensors such as a Hall sensor, as long as it can detect a change in a magnetic field generated by the magnet 250.
  • the actuator 200 is characterized in that it senses the rotation of the valve bracket 120 rotated integrally with the drive gear 240 by detecting the rotation of the drive gear 240. That is, when the magnet 250 mounted on the upper surface of the driving gear 240 is rotated integrally with the driving gear 240, the detection sensor 270 detects a change in the magnetic field generated by the magnet 250 to detect a valve It is possible to detect whether the bracket 120 is rotated, and accordingly, control the rotation of the valve bracket 120.
  • the driving gear 240 and the valve shaft 130 may be integrally rotated, but in this case, the driving gear 240 There is a concern that slip occurs between the and the valve shaft 130 so that the valve shaft 130 may not rotate integrally with the driving gear 240.
  • a slip prevention groove 242 is formed on the bottom surface of the driving gear 240, and an insertion protrusion inserted into the slip prevention groove 242 in a 1:1 fitting manner at the upper end of the valve shaft 130 ( 132) is preferably provided.
  • the detection sensor 270 when the detection sensor 270 comes into contact with the magnet 250, when the magnet 250 rotates along the driving gear 240, it rubs against the detection sensor 270 and damages the detection sensor 270. Therefore, it is preferable that the detection sensor 270 is spaced a predetermined distance upward from the magnet 250. At this time, if the detection sensor 270 is excessively separated from the magnet 250, the detection sensor 270 cannot accurately detect the change in the magnetic field of the magnet 250. It is desirable that the separation distance is always kept constant.
  • the motor 220 and the driving gear 240 are positioned in the inner space between the housing 210 and the cover 280.
  • the magnet 250 is preferably mounted on the bottom surface of the printed circuit board 260.
  • the printed circuit board 260 is fixedly coupled to the space between the housing 210 and the cover 280, and the detection sensor 270 mounted on the printed circuit board 260 is separated from the magnet 250 May be kept constant, and accordingly, a change in the magnetic field generated by the magnet 250 may be accurately detected.
  • the detection sensor 270 when configured to be coupled to the bottom of the printed circuit board 260, the detection sensor 270 can maintain its initial position as long as the printed circuit board 260 is not damaged. , It is also possible to obtain the effect of improving the durability of the product.
  • a conventional sensing structure for detecting whether the gear rotates there is a structure in which a permanent magnet is coupled to one of the upper surfaces of the gear and a sensor for detecting whether the permanent magnet has passed is installed on the upper side of the gear.
  • a sensing structure has a problem that the rotation of the gear can be determined only when the permanent magnet passes through the lower side of the sensor, and the rotation of the gear cannot be determined while the permanent magnet does not pass through the lower side of the sensor.
  • the detection sensor 270 when the magnet 250 is mounted to surround the rotational axis of the driving gear 240 and the detection sensor 270 is installed on the rotational axis of the driving gear 240, the detection sensor ( Since 270 can always detect the rotation of the driving gear 240 regardless of how much the driving gear 240 is rotated, the rotation amount of the valve shaft 130 and the valve bracket 120 coupled thereto is It has the advantage of being able to accurately measure in real time.
  • FIG. 6 is a perspective view showing a coupling structure of the magnet 250 included in the actuator 200 for a multi-directional selector valve according to the present invention.
  • the magnet 250 and the driving gear 240 are always coupled to be integrally rotated.
  • the magnet 250 is formed to have a circular shape at an inner end and a polygonal shape at an outer end, and the magnet 250 is inserted into the upper surface of the driving gear 240 in a fitting manner to prevent rotation. Insertion groove 244 to be formed may be formed.
  • the magnet 250 and the driving gear 240 Has the advantage that it can always be rotated integrally.
  • the shape of the outer end of the magnet 250 may be changed to a polygonal shape such as a hexagonal or quadrangular shape.
  • the magnet 250 may have an inner end formed in a polygonal shape and an outer end formed in a circular shape.
  • 7 and 8 are a plan view and a side view showing the arrangement structure of the magnet 250 and the detection sensor 270.
  • the detection sensor 270 included in the present invention is located on the rotation axis of the driving gear 240 and is manufactured to be smaller than the inner diameter of the magnet 250. That is, the inner diameter of the magnet 250 is formed to be large enough to pass through the detection sensor 270 as shown in FIG.
  • the detection sensor 270 and the magnet 250 are arranged in this way, the detection sensor 270 and the magnet 250 do not overlap each other, so there is an advantage in that a measurement error of the amount of change in the magnetic field can be reduced.
  • the detection sensor 270 when the detection sensor 270 is disposed to face the inner empty space of the magnet 250, it is possible to obtain an effect of excellent linearity in detecting a change in the magnetic field formed in the inner empty space of the magnet 250. do.
  • the linearity of detecting a change in the magnetic field is improved as described above, it is possible to measure the magnetic field more accurately and predict the change in the magnetic field.
  • the magnet 250 is illustrated only when the inner diameter is circular and the outer diameter is polygonal, but the magnet 250 surrounds the rotation axis of the driving gear 240 and corresponds to the detection sensor 270. If it can be secured as an empty space, it can be replaced with any shape.
  • the separation distance between the detection sensor 270 and the magnet 250 is too narrow, there is a concern that the detection sensor 270 and the magnet 250 may come into contact, and the separation distance between the detection sensor 270 and the magnet 250 is If it is too wide, a problem occurs that it is difficult for the detection sensor 270 to accurately detect the magnetic field of the magnet 250.
  • the detection sensor 270 is so that the separation distance L with the magnet 250 is properly maintained as shown in FIG. 8, that is, when the magnet 250 is rotated integrally with the driving gear 240, the It is preferable that the detection sensor 270 is set to maintain a state spaced apart by a distance capable of sensing a magnetic field of 10 mT or more and 80 mT or less.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

Actionneur pour vanne de commutation multidirectionnelle selon la présente invention étant un actionneur pour faire tourner un arbre de vanne d'une vanne de commutation multidirectionnelle ayant une pluralité d'orifices d'entrée/sortie, et comprenant : un boîtier qui est logé de façon stable sur le côté supérieur de la vanne de commutation multidirectionnelle et dans lequel l'extrémité de l'arbre de vanne est insérée ; un moteur monté dans le boîtier pour générer une force de rotation ; un engrenage d'entraînement pour recevoir la force de rotation générée par le moteur pour faire tourner l'arbre de vanne ; un aimant disposé de façon à entourer un arbre de rotation de l'engrenage d'entraînement ; un capteur monté pour être espacé de l'aimant dans une direction vers le haut ou vers le bas pour détecter le changement d'un champ magnétique généré pendant la rotation de l'aimant ; et un couvercle pour recouvrir la partie supérieure du boîtier de telle sorte que l'aimant et le capteur sont insérés dans celui-ci.
PCT/KR2019/015256 2019-10-28 2019-11-11 Actionneur pour vanne de commutation multidirectionnelle WO2021085711A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0134599 2019-10-28
KR20190134599 2019-10-28

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Publication Number Publication Date
WO2021085711A1 true WO2021085711A1 (fr) 2021-05-06

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PCT/KR2019/015256 WO2021085711A1 (fr) 2019-10-28 2019-11-11 Actionneur pour vanne de commutation multidirectionnelle

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6485258B1 (en) * 1998-03-23 2002-11-26 Siemens Aktiengesellschaft Electromechanical actuator for a valve and steam turbine
JP2009081935A (ja) * 2007-09-26 2009-04-16 Nippon Gear Co Ltd 電動アクチュエータ
JP2011503469A (ja) * 2007-11-07 2011-01-27 キョントン ネットワーク カンパニー リミテッド 流量制御弁
KR101567400B1 (ko) * 2014-10-06 2015-11-10 동주에이피 주식회사 밸브 제어 장치 및 밸브 제어 방법
KR20190053931A (ko) * 2016-09-28 2019-05-20 무빙 마그네트 테크놀로지스 출력 기어를 둘러싸는 위치 센서를 갖는 기어드 모터 유닛

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6485258B1 (en) * 1998-03-23 2002-11-26 Siemens Aktiengesellschaft Electromechanical actuator for a valve and steam turbine
JP2009081935A (ja) * 2007-09-26 2009-04-16 Nippon Gear Co Ltd 電動アクチュエータ
JP2011503469A (ja) * 2007-11-07 2011-01-27 キョントン ネットワーク カンパニー リミテッド 流量制御弁
KR101567400B1 (ko) * 2014-10-06 2015-11-10 동주에이피 주식회사 밸브 제어 장치 및 밸브 제어 방법
KR20190053931A (ko) * 2016-09-28 2019-05-20 무빙 마그네트 테크놀로지스 출력 기어를 둘러싸는 위치 센서를 갖는 기어드 모터 유닛

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