WO2021260729A1 - Électrovanne améliorée avec enroulement d'aluminium - Google Patents

Électrovanne améliorée avec enroulement d'aluminium Download PDF

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Publication number
WO2021260729A1
WO2021260729A1 PCT/IN2021/050607 IN2021050607W WO2021260729A1 WO 2021260729 A1 WO2021260729 A1 WO 2021260729A1 IN 2021050607 W IN2021050607 W IN 2021050607W WO 2021260729 A1 WO2021260729 A1 WO 2021260729A1
Authority
WO
WIPO (PCT)
Prior art keywords
solenoid valve
valve
coil winding
purge control
improved
Prior art date
Application number
PCT/IN2021/050607
Other languages
English (en)
Inventor
Kabir BHANDARI
Amardip KUMAR
Nitin MANHAS
Yatin RANA
Original Assignee
Padmini Vna Mechatronics Pvt. Ltd.
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 Padmini Vna Mechatronics Pvt. Ltd. filed Critical Padmini Vna Mechatronics Pvt. Ltd.
Publication of WO2021260729A1 publication Critical patent/WO2021260729A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • F16K31/0658—Armature and valve member being one single element

Definitions

  • the present invention relates to a solenoid valve. More particularly, the present invention relates to an improved solenoid valve for purge control or the EVAP system solenoid valve like FTIV, Canister Vent Valve with a winding of aluminum wire for cost effectiveness and reduced weight.
  • a solenoid valve is an electrically controlled valve used in variety of applications such as fuel tank valve, purge valves, air bypass valves, vapor blocking valves, refueling vent valve, canister vent valve, water (like Electric water pump etc.), pneumatic (like vacuum solenoid valve, Turbocharger solenoid valve, Electronic Vacuum Regulator Valve etc.) & other solenoid valves.
  • the solenoid valve finds its utility wherever a fluid flow must be controlled/ maintained.
  • Solenoid valves when electrically energized or de-energized, either shut off or allow flow.
  • the actuation takes the form of an electromagnet and when energized, a magnetic field builds up which pulls a plunger or pivoted armature against the action of a spring.
  • the solenoid valves are either two port or three port valves.
  • a solenoid valve used for purge control is a part of vehicle’s evaporative emission control (EVAP) system.
  • the EVAP system is responsible plays an important role in preventing fuel vapors in the fuel tank from escaping into the atmosphere.
  • the EVAP system traps fuel vapors from the fuel tank and temporarily stores them in a charcoal canister.
  • the purge valve is precisely controls the amount of fuel vapor that is purged from the charcoal canister to engine.
  • the solenoid subassembly comprises of a bobbin with a coil winding having a magnetic return path.
  • the bobbin is usually made of an electrically insulated material while the coil winding should have an electrical conductivity. Copper having a very high electrical conductivity is the most suitable material for coil winding. But copper on the other hand is an expensive and heavy metal because of high density as compared to AT and hence it increases the cost as well as weight of the solenoid valve. Also on the other hand Aluminum is also a good thermal and electrical conductor.
  • CA2857301A1 relates to a solenoid pilot valve for a hydraulic valve, for household appliances.
  • This valve comprises at least one core mounted movably within a portion of said body and inside said chamber and carrying a closing member cooperating with the valve seat; and an actuator including a solenoid or coil of copper wire, mounted around said portion of the body. Copper being a costly and heavy metal increases the overall cost and weight of the product.
  • the main object of the present invention is to provide an improved solenoid valve with a winding of aluminum wire which is useful in variety of application such as Fuel Tank Valve, Purge Valves, Air Bypass valves, Vapor blocking/Refueling vent valve/Canister Vent Valve, water solenoid valve (like Electric water pump etc.), pneumatic (like vacuum solenoid valve, Turbocharger solenoid valve, Electronic Vacuum Regulator Valve etc.) & other solenoid valves used in the application of EVAP & Engine of 2 wheelers & 4 wheelers application.
  • Another object of the present invention is to provide an improved solenoid valve with a winding of aluminum wire that reduces the cost as well as the weight of the product significantly.
  • the present invention relates to an improved solenoid valve which is cost effective and has a reduced weight due to utilization of aluminum wire for coil winding.
  • the present invention provides an improved solenoid valve for purge control comprising of a housing, at least one bobbin assembly with integrated nozzles, at least one slotted bracket, a moving core, a spring, an U-bracket, a fixcore, a coil winding, a plurality of terminals and at least one O-ring optionally provided for better sealing.
  • the coil winding of aluminum wire is wound on the outer diameter of the bobbin assembly forming a solenoid. When the coil winding is energized, a magnetic field is set up and the moving core moves towards the fixcore opening an air flow passage.
  • the fixcore is a magnetic core fixed to the inner diameter of the bobbin assembly and gets magnetized when solenoid is energized.
  • the spring helps in resetting the position of moving core on de energization.
  • the housing encloses the coil sub assembly comprising the bobbin part of the bobbin assembly and coil winding and terminals.
  • the slotted bracket and U bracket provides magnetic path after crimped together.
  • the aluminum wire used for coil winding makes the solenoid valve cost effective and light weighted.
  • the terminals are preferably made of brass or brass alloy material and joined with aluminum wire through a joining process including but not limited to soldering or crimping.
  • the present invention provides an improved solenoid valve comprising of a valve body, at least one plunger, at least one fixcore, at least one bobbin assembly with inlet & outlet port, a coil winding, at least one spring and a plurality of terminals for electrical connection.
  • the material for coil winding is ideally an electrically conductive material and the bobbin part is made of an electrically insulated material. Copper due to very high electrical conductivity is the most preferred material, however increases the overall weight and cost of the product.
  • the material for coil winding as per present invention is aluminum wire that is cost effective and has reduced weight.
  • the terminals are preferably made of brass or brass alloy material and joined with aluminum wire through a joining process including but not limited to soldering or crimping.
  • the present invention provides an approach to make the solenoid valve cost effective and light weighted and is useful is applications such as Purge Control Valve, Isolation Valve, Air Bypass Valves, Vapor Blocking Valve/Refueling Vent Valve/Canister Vent Valve, water Solenoid Valve (like Electric water pump etc.) , pneumatic (like vacuum solenoid valve, Turbocharger solenoid valve, Electronic Vacuum Regulator Valve etc.) & other solenoid valves used in the application of EVAP & Engine of 2-Wheeler & 4-Wheeler application.
  • Fig. 1 shows a section diagram of the improved purge valve for purge control in accordance with the present invention.
  • Fig. 2 shows a bar diagram for comparison of copper and aluminum on basis of price.
  • Fig. 3 shows a bar diagram for comparison of copper and aluminum on basis of weight.
  • Fig. 4 shows a bar diagram for comparison of copper and aluminum on basis of electrical and pneumatic functional performance.
  • the present invention provides an improved solenoid valve with a winding of aluminum wire which is useful in variety of application such as Fuel Tank Valve, Purge Valves, Air Bypass valves, Vapor blocking valve/ Refueling vent valve/Canister Vent Valve.
  • the present invention provides an improved solenoid valve for purge control comprising of a housing, at least one bobbin, at least one slotted bracket, a moving core, a spring, an U-bracket, a fixcore, a coil winding, a plurality of terminals and at least one O-ring (O-ring provide optionally to provide more sealing).
  • the coil winding of aluminum wire is wound on the outer diameter of the bobbin part of bobbin assembly forming a solenoid. When the coil winding is energized, a magnetic field is set up and the moving core moves towards the fixcore opening an air flow passage.
  • the fixcore is a magnetic core fixed to the inner diameter of the bobbin assembly and gets magnetized when solenoid is energized.
  • the O-ring to control leakage during energized condition. While in de-energized condition, the moving core seals the bobbin.
  • the spring helps in resetting the position of moving core on de -energization.
  • the housing encloses the coil sub assembly comprising the bobbin part and coil winding and terminals.
  • the slotted bracket and U bracket provide magnetic path after crimped together.
  • the aluminum wire used for coil winding makes the solenoid valve cost effective and light weighted.
  • the terminals are preferably made of brass or brass alloy material and joined with aluminum wire through a joining process including but not limited to soldering or crimping.
  • the present invention provides an improved solenoid valve comprising of a valve body, at least one plunger, at least one fixcore, at least one bobbin assembly with integrated atleast one inlet and one outlet port, a coil winding, at least one spring and a plurality of terminals for electrical connection.
  • the material for coil winding is ideally an electrically conductive material and the bobbin assembly is made of an electrically insulated material.
  • the material for coil winding is aluminum wire that is cost effective and has reduced weight.
  • the terminals are preferably made of brass or brass alloy material and joined with aluminum wire through a joining process including but not limited to soldering or crimping.
  • the improved solenoid valve 10 for purge control has a bobbin assembly 1 and on its outer diameter coil winding 8 is wound which sets up magnetic field when energized.
  • the housing 2 encloses the bobbin assembly 1 with integrated nozzles with coil winding 8 and this housing 2 is inserted in a U-bracket 6 and closed at the top with a slotted bracket 3.
  • the moving core 4 is assembled over the fixcore 7.
  • the moving core 4 seals the bobbin assembly 1 during de-energized condition and moves towards fixcore 7 during energized condition opening an air flow passage.
  • a spring 5 resets the position of moving core 4 on de-energized condition.
  • the coil winding is preferably made of aluminum wire which is light weighted and cost effective compared to conventional copper wire.
  • Fig. 2 shows a bar diagram for comparison of copper and aluminum on basis of price.
  • the price of aluminum wire is approximately 40% less than copper wire.
  • the solenoid valve With use of aluminum wire for coil winding, the solenoid valve also becomes cost effective compared to solenoid valve with copper wire used as coil winding.
  • Fig. 3 shows a bar diagram for comparison of copper and aluminum on basis of weight.
  • the aluminum wire has approximately 15% less weight than the weight of the copper wire. Due to more weight, the solenoid valves with copper wire as coil winding when employed in a vehicle or other product increases the overall weight of the product.
  • Fig. 4 shows a bar diagram for comparison of copper and aluminum on basis of electrical and pneumatic functional performance.
  • the aluminum wire used as a coil winding is equally efficient as copper wire and suitable for use as coil winding in a solenoid valve. Therefore, the present invention provides an improved solenoid valve which is cost effective and has reduced weight as the conventionally used copper wire for coil winding is replaced with a light weight and comparatively much cheaper aluminum wire.

Abstract

La présente invention concerne une électrovanne (10) améliorée pour la commande de purge avec un enroulement de fil d'aluminium pour une efficacité de coût et un poids réduit. Ladite vanne améliorée (10) comprend un ensemble bobine (1) enroulé avec un enroulement de bobine (8) en aluminium qui est un métal léger et peu coûteux. Ledit enroulement de bobine (8) est soudé ou serti avec des bornes de la vanne (10).
PCT/IN2021/050607 2020-06-22 2021-06-22 Électrovanne améliorée avec enroulement d'aluminium WO2021260729A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202011026323 2020-06-22
IN202011026323 2020-06-22

Publications (1)

Publication Number Publication Date
WO2021260729A1 true WO2021260729A1 (fr) 2021-12-30

Family

ID=79282272

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2021/050607 WO2021260729A1 (fr) 2020-06-22 2021-06-22 Électrovanne améliorée avec enroulement d'aluminium

Country Status (1)

Country Link
WO (1) WO2021260729A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922965A (en) * 1989-02-22 1990-05-08 Beta Mfg. Co. Pneumatic solenoid valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922965A (en) * 1989-02-22 1990-05-08 Beta Mfg. Co. Pneumatic solenoid valve

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Coils made of Anodised Aluminium ", ANOFOL, 14 November 2019 (2019-11-14), XP055894236, Retrieved from the Internet <URL:https://web.archive.org/web/20191114164132/https://anofol.de/en/products/coils-made-of-anodised-aluminium/> [retrieved on 20220222] *

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