WO2022230456A1 - 電動弁 - Google Patents
電動弁 Download PDFInfo
- Publication number
- WO2022230456A1 WO2022230456A1 PCT/JP2022/013209 JP2022013209W WO2022230456A1 WO 2022230456 A1 WO2022230456 A1 WO 2022230456A1 JP 2022013209 W JP2022013209 W JP 2022013209W WO 2022230456 A1 WO2022230456 A1 WO 2022230456A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- control board
- external connector
- housing
- substrate portion
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims description 46
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000005476 soldering Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- JLYXXMFPNIAWKQ-UHFFFAOYSA-N γ Benzene hexachloride Chemical compound ClC1C(Cl)C(Cl)C(Cl)C(Cl)C1Cl JLYXXMFPNIAWKQ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- 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
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K26/00—Machines adapted to function as torque motors, i.e. to exert a torque when stalled
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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
Definitions
- the present disclosure relates to motor operated valves.
- an electrically operated valve having a motor consisting of a stator member and a rotor member for displacing a valve body, and a housing accommodating the motor.
- a cover member of the housing holds a control board having a drive circuit for driving the motor.
- the cylindrical member of the housing is provided with a connector portion (external connector) that can be connected to an external power source.
- the terminals arranged inside the connector section are connected to the control board through the flexible board.
- LIN Local Interconnect Network
- Motor-operated valves used in automotive air conditioners are also equipped with a LIN communication function.
- Such motorized valves have control boards for handling LIN communications and share power, ground and communication lines through connectors.
- This motor-operated valve processes LIN communication with a microcomputer such as an IC mounted on a control board, and controls energization of a motor inside the motor-operated valve to control opening and closing of the valve.
- control board since a control board for LIN communication is not provided, the control board is installed near the external connector, and the external connector and the motor connector connecting the motor to the control board are placed close to each other. are placed.
- the signal (current) input from the external connector is processed by an IC or the like separated from the external connector through, for example, the upper surface of the control board, and then returns to the external connector side through, for example, the lower surface of the control board. Power is supplied to the motor through the board.
- a complicated electric circuit exists in the control board, it becomes a source of noise transmission and reception.
- the present disclosure aims to improve noise performance in an electrically operated valve with a communication function.
- a motor-operated valve includes a motor, a power transmission mechanism that converts rotational motion generated by the motor into an axial motion of a valve body, and a housing that accommodates at least part of the power transmission mechanism and the motor.
- an external connector provided in the housing to enable power supply to the motor and communication with a networked control device; and an external connector provided in the housing to process the communication and control the motor.
- the control board has a connection position with the external connector side terminal and a connection position with the motor side terminal on the control board, and is located at both ends in the longitudinal direction of the control board.
- This electric valve has a communication function with a control device connected by a network, and the control board processes communication and controls the motor.
- the connection position with the external connector side terminal and the connection position with the motor side terminal are located at both ends in the longitudinal direction of the control board. is simplified in one direction.
- a second aspect is the electrically operated valve according to the first aspect, wherein the control board is arranged in a direction intersecting the axis of the motor and connected to the external connector side terminals; a second substrate portion arranged in a direction along the axis and connected to the motor-side terminals, wherein the first substrate portion and the second substrate portion are separated from the first substrate portion and the second substrate portion; are connected by a thin and flexible flex wiring portion.
- the control board has a first board section connected to the external connector side terminals and a second board section connected to the motor side terminals, and the first board section and the second board section are connected to the terminals. Connected by flex wiring.
- the flex wiring section is thinner and more flexible than the first substrate section and the second substrate section. In other words, the first substrate portion and the second substrate portion are thicker and less flexible than the flex wiring portion.
- the second substrate portion which has relatively less flexibility, is connected to the motor-side terminals. Reception and transmission of noise from the second substrate section is suppressed.
- the flex wiring portion is bent and the first substrate portion is connected to the external connector-side terminals, whereby the first The substrate can be easily arranged in a direction intersecting the axis of the motor.
- a third aspect is the electric valve according to the second aspect, wherein the external connector side terminals and the motor side terminals are press-fit terminals that are press-fitted into through holes provided in the control board.
- the external connector-side terminals and the motor-side terminals are press-fit terminals, which are press-fitted into the through-holes of the control board, making it easy to assemble the control board. Also, since soldering is not required, there is no fear of solder cracks or solder balls, and an improvement in reliability can be expected. Furthermore, the first board section can be connected to the external connector side terminals at the same time as the step of bending the control board at the flex wiring section.
- a fourth aspect is the electrically operated valve according to the second aspect or the third aspect, wherein a gap is provided between the first substrate portion and the housing that enables the first substrate portion to be gripped during assembly. is provided.
- noise performance can be improved in an electrically operated valve having a communication function.
- FIG. 2 is a plan view showing a state in which a control board is exposed by removing a cover member of a housing in the electrically operated valve according to the present embodiment
- FIG. 4 is a cross-sectional view showing a process of assembling a control board in the motor-operated valve according to the present embodiment
- FIG. 11 is a plan view showing a state in which a control board is exposed by removing a cover member of a housing in an electrically operated valve according to a modification;
- the electrically operated valve 10 has a motor 12, a power transmission mechanism 14, a housing 16, an external connector 18, and a control board 20.
- the axial direction of the power transmission mechanism 14 (the axial direction of the motor) is the vertical direction, and the cover 24 of the housing 16, which will be described later, is located on the upper side. For convenience, the positional relationship of each member will be described with reference to this arrangement.
- the motor 12 is, for example, a stepping motor.
- a power feeding portion 12A of the motor 12 is provided with, for example, four motor-side terminals 12B.
- the motor-side terminals 12B are press-fit terminals, for example, and are press-fitted into through-holes 32 provided in the control board 20 . Since the structure of the motor 12 is well known, other explanations are omitted.
- the power transmission mechanism 14 is a mechanism that converts rotational motion generated by the motor 12 into axial motion of the valve body (not shown). Since the structure of the power transmission mechanism 14 is well known, other explanations are omitted. Reference numeral 14 indicates a can that houses at least part of the power transmission mechanism, and the can is not included in the power transmission mechanism 14 .
- the housing 16 is a member that accommodates at least part of the power transmission mechanism 14 and the motor 12, and has, for example, a cylindrical portion 22 and a lid 24 for closing the upper end of the cylindrical portion 22.
- the housing 16 accommodates the control board 20 and the like in addition to the motor 12 and the power transmission mechanism 14 .
- an O-ring 26 is arranged in a portion of the housing 16 that contacts the power transmission mechanism 14 .
- the power transmission mechanism 14 is provided with a mounting bracket 28 adjacent to the lower side of the housing 16 . Further below the mounting bracket 28, a lower base member having a flow path that is opened and closed by the electric valve 10 can be mounted. A valve body driven by the electric valve 10 is arranged in this lower base member.
- the external connector 18 is provided on the housing 16 and enables power supply to the motor 12 and communication with the control device 50 connected by the network 48, for example, LIN communication.
- LIN is an example of an in-vehicle network.
- the external connector 18 is connected to the control device 50 via the network 48 and power is supplied to the control board 12 via the external connector 18 .
- external connector 18 extends horizontally from housing 16 .
- Terminals 18A arranged inside the external connector 18 are electrically connected to external connector-side terminals 18B extending upward inside the housing 16 .
- the external connector-side terminals 18B are press-fit terminals, for example, and are provided at four locations, for example, and are press-fitted into through-holes 38 provided in the control board 20 .
- the control board 20 is provided in the housing 16, and is equipped with a microcomputer (electronic components 34 such as ICs) that processes communication with the control device 50, such as LIN communication, and controls the motor 12.
- a microcomputer electronic components 34 such as ICs
- the connection positions (through holes 38) with the external connector-side terminals 18B and the connection positions (through holes 32) with the motor-side terminals 12B are located at both ends of the control board 20 in the longitudinal direction. ing.
- the connection position with the external connector side terminal 18B and the connection position with the motor side terminal 12B are arranged on opposite sides of the axis L of the motor 12 as a reference.
- connection position between the control board 20 and the external connector side terminal 18B is arranged on the right side of the axis L of the motor 12, and the connection position between the control board 20 and the motor side terminal 12B is arranged on the left side of the axis L of the motor 12. are placed in
- the control board 20 has a first board section 41 , a second board section 42 and a flex wiring section 43 .
- the first board portion 41 is arranged in a direction intersecting the axis L of the motor 12 and connected to the external connector side terminals 18B.
- the second board portion 42 is arranged in a direction along the axis L of the motor 12 and connected to the motor-side terminals 12B.
- the flex wiring section 43 is formed by processing a portion of the control board 20 to be thinner than the first board section 41 and the second board section 42, for example, and has flexibility.
- the first substrate portion 41 and the second substrate portion 42 are combined and integrated by the flex wiring portion 43 .
- the control board 20 before assembly has a substantially flat plate shape as a whole because the flex wiring portion 43 is not bent.
- positioning holes 41A are formed in the first substrate portion 41, for example, at four locations.
- the housing 16 is provided with four positioning bosses 30, and the first board portion 41 is positioned and held by inserting the bosses 30 into the positioning holes 41A. By deforming the boss 30 , the first substrate portion 41 may be prevented from coming off the boss 30 .
- a gap S is provided between the first substrate portion 41 and the housing 16 to allow the first substrate portion 41 to be gripped during assembly.
- This gap S serves as a gripping margin for a tool (not shown).
- This tool is, for example, an assembly robot hand or the like. If the width W of the first substrate portion 41 is narrowed to provide the gap S, the mounting area for the electronic components is reduced, but the electronic components can be mounted on the second substrate portion 42 as well, so the mounting area for the electronic components is sufficiently secured. be done.
- the whole control board 20 is erected vertically, and the motor-side terminals 12B are press-fitted into the through holes 32 of the second board portion 42.
- the first board portion 41 is laid down in the direction of arrow A, and the external connector side terminals 18B are press-fitted into the through holes 38 of the first board portion 41 .
- the flex wiring portion 43 is bent.
- the boss 30 is inserted into the positioning hole 41A (FIG. 2).
- the cover 24 is attached to the cylindrical portion 22 (in the direction of arrow B) to close the upper end of the cylindrical portion 22 .
- the present embodiment is configured as described above, and its operation will be described below.
- the motor operated valve 10 has a LIN communication function, and a control board 20 processes LIN communication and controls the motor 12 .
- the connection position (through hole 38) with the external connector side terminal 18B and the connection position (through hole 32) with the motor side terminal 12B are arranged on opposite sides with respect to the axis L of the motor 12. Therefore, the electric path from the external connector 18 to the motor 12 via the control board 20 is simplified in one direction (direction of arrow C).
- the control board 20 has a first board portion 41 connected to the external connector side terminals 18B and a second board portion 42 connected to the motor side terminals 12B. and the second substrate portion 42 are coupled by the flex wiring portion 43 .
- the flex wiring portion 43 is thinner and more flexible than the first substrate portion 41 and the second substrate portion 42 .
- the first substrate portion 41 and the second substrate portion 42 are thicker and less flexible than the flex wiring portion 43 .
- the second board portion 42 which has relatively little flexibility, is connected to the motor-side terminals 12B compared to the case where a member having flexibility as a whole, such as a flexible board, is connected to the motor-side terminals 12B. Therefore, reception and transmission of noise from the second substrate portion 42 is suppressed.
- the flex wiring portion 43 is bent to connect the first board portion 41 to the external connector-side terminals 18B.
- the first substrate portion 41 can be easily arranged in a direction intersecting the axis L of the motor 12 .
- the external connector side terminals 18B and the motor side terminals 12B are press-fit terminals and are press-fitted into the through holes 38 and 32 of the control board 20, respectively, so that the control board 20 can be easily assembled. Also, since soldering is not required, there is no fear of solder cracks or solder balls, and an improvement in reliability can be expected. Furthermore, at the same time as the step of bending the control board 20 at the flex wiring part 43, the first board part 41 can be connected to the external connector side terminals 18B.
- the first substrate portion 41 is gripped by a tool (hand of an assembly robot, etc.) and the external connector side is opened.
- the step of connecting to the terminal 18B can be easily performed.
- noise performance can be improved in the electrically operated valve 10 having a communication function.
- control board 20 has the first board section 41, the second board section 42, and the flex wiring section 43, but the configuration of the control board 20 is not limited to this.
- the connection position with the external connector side terminal 18B and the connection position with the motor side terminal 12B on the control board 20 may be arranged on opposite sides of the axis L of the motor 12 as a reference.
- LIN was mentioned as an example of an in-vehicle network, the in-vehicle network is not limited to this, and may be CAN or the like.
- connection position with the external connector side terminal 18B and the connection position with the motor side terminal 12B on the control board 20 are 90° different from each other with respect to the axis L of the motor 12. may be placed. That is, both connection positions need not be arranged on the same side of the axis L of the motor 12 as a reference.
- the external connector side terminals 18B and the motor side terminals 12B are press-fit terminals, they may be connected by soldering without using press-fit terminals.
- a gap S is provided as a gripping margin for the tool, but the gap S does not necessarily have to be provided.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
本実施形態は、上記のように構成されており、以下その作用について説明する。図1において、本実施形態に係る電動弁10は、LIN通信機能を有しており、制御基板20がLIN通信を処理すると共に、モータ12を制御する。この制御基板20において、外部コネクタ側端子18Bとの接続位置(スルーホール38)とモータ側端子12Bとの接続位置(スルーホール32)とがモータ12の軸線Lを基準として互いに反対側に配置されているので、制御基板20を介した外部コネクタ18からモータ12への電路が一方向(矢印C方向)に簡略化される。
以上、本開示の実施形態の一例について説明したが、本開示の実施形態は、上記に限定されるものでなく、上記以外にも、その主旨を逸脱しない範囲内において種々変形して実施可能であることは勿論である。
本明細書に記載されたすべての文献、特許出願、および技術規格は、個々の文献、特許出願、および技術規格が参照により取り込まれることが具体的かつ個々に記された場合と同程度に、本明細書中に参照により取り込まれる。
Claims (4)
- モータと、
前記モータにより生ずる回転運動を、弁体の軸線方向運動に変換する動力伝達機構と、
前記動力伝達機構の少なくとも一部と前記モータを収容するハウジングと、
前記ハウジングに設けられ、前記モータへの電力供給とネットワークで接続された制御装置との通信を可能にする外部コネクタと、
前記ハウジング内に設けられ、前記通信を処理すると共に前記モータを制御する制御基板と、を有し、
前記制御基板における外部コネクタ側端子との接続位置とモータ側端子との接続位置とが前記制御基板の長手方向の両端部側にそれぞれ位置している電動弁。 - 前記制御基板は、前記モータの軸線と交差する方向に配置され前記外部コネクタ側端子に接続される第1基板部と、前記モータの軸線に沿う方向に配置され前記モータ側端子に接続される第2基板部とを有し、
前記第1基板部と前記第2基板部とが、前記第1基板部及び前記第2基板部よりも薄く可撓性を有するフレックス配線部により結合されている請求項1に記載の電動弁。 - 前記外部コネクタ側端子及びモータ側端子は、前記制御基板に設けられたスルーホールにそれぞれ圧入されるプレスフィット端子である請求項2に記載の電動弁。
- 前記第1基板部と前記ハウジングとの間に、組立時に前記第1基板部を把持することを可能とする間隙が設けられている請求項2又は請求項3に記載の電動弁。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280031741.9A CN117280147A (zh) | 2021-04-30 | 2022-03-22 | 电动阀 |
US18/556,922 US20240218938A1 (en) | 2021-04-30 | 2022-03-22 | Electric valve |
JP2023517151A JP7383328B2 (ja) | 2021-04-30 | 2022-03-22 | 電動弁 |
DE112022002387.2T DE112022002387T5 (de) | 2021-04-30 | 2022-03-22 | Elektrisches Ventil |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021077657 | 2021-04-30 | ||
JP2021-077657 | 2021-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022230456A1 true WO2022230456A1 (ja) | 2022-11-03 |
Family
ID=83847395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/013209 WO2022230456A1 (ja) | 2021-04-30 | 2022-03-22 | 電動弁 |
Country Status (5)
Country | Link |
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US (1) | US20240218938A1 (ja) |
JP (1) | JP7383328B2 (ja) |
CN (1) | CN117280147A (ja) |
DE (1) | DE112022002387T5 (ja) |
WO (1) | WO2022230456A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008166382A (ja) * | 2006-12-27 | 2008-07-17 | Mitsubishi Electric Corp | 電子制御装置 |
WO2019064767A1 (ja) * | 2017-09-28 | 2019-04-04 | 日本電産株式会社 | モータ及び電動パワーステアリング装置 |
WO2020203007A1 (ja) * | 2019-03-29 | 2020-10-08 | 株式会社不二工機 | 電動弁 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180023732A (ko) | 2016-08-26 | 2018-03-07 | 삼성에스디아이 주식회사 | 리튬이온전지용 복합양극활물질, 그 제조방법 및 이를 포함한 양극을 함유한 리튬이온전지 |
-
2022
- 2022-03-22 JP JP2023517151A patent/JP7383328B2/ja active Active
- 2022-03-22 DE DE112022002387.2T patent/DE112022002387T5/de active Pending
- 2022-03-22 WO PCT/JP2022/013209 patent/WO2022230456A1/ja active Application Filing
- 2022-03-22 CN CN202280031741.9A patent/CN117280147A/zh active Pending
- 2022-03-22 US US18/556,922 patent/US20240218938A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008166382A (ja) * | 2006-12-27 | 2008-07-17 | Mitsubishi Electric Corp | 電子制御装置 |
WO2019064767A1 (ja) * | 2017-09-28 | 2019-04-04 | 日本電産株式会社 | モータ及び電動パワーステアリング装置 |
WO2020203007A1 (ja) * | 2019-03-29 | 2020-10-08 | 株式会社不二工機 | 電動弁 |
Also Published As
Publication number | Publication date |
---|---|
US20240218938A1 (en) | 2024-07-04 |
JP7383328B2 (ja) | 2023-11-20 |
DE112022002387T5 (de) | 2024-02-08 |
CN117280147A (zh) | 2023-12-22 |
JPWO2022230456A1 (ja) | 2022-11-03 |
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