EP0480873A1 - Verfahren zur Herstellung einer Elektromagnetanordnung für Elektroventilen - Google Patents

Verfahren zur Herstellung einer Elektromagnetanordnung für Elektroventilen Download PDF

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Publication number
EP0480873A1
EP0480873A1 EP91810759A EP91810759A EP0480873A1 EP 0480873 A1 EP0480873 A1 EP 0480873A1 EP 91810759 A EP91810759 A EP 91810759A EP 91810759 A EP91810759 A EP 91810759A EP 0480873 A1 EP0480873 A1 EP 0480873A1
Authority
EP
European Patent Office
Prior art keywords
electromagnets
connection
connection block
coils
pins
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP91810759A
Other languages
English (en)
French (fr)
Other versions
EP0480873B1 (de
Inventor
Raphael Prina
Alain Guillot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parker Hannifin Manufacturing Switzerland SA
Original Assignee
Honeywell Lucifer SA
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
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Application filed by Honeywell Lucifer SA filed Critical Honeywell Lucifer SA
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding

Definitions

  • the present invention relates to a method of manufacturing a set of electromagnets for direct-controlled solenoid valves, consisting of a body of insulating material in which are embedded two electromagnets arranged side by side in the same position and each comprising a cylinder head provided with '' a core-shaped pole piece and a winding mounted on a coil body surrounding the pole piece, and a piece provided with electrical contacts ensuring the electrical connection of the coils with external connection means, the assembly being intended for receive two movable cores constituting the valves of the solenoid valves.
  • a solenoid valve which consists of two electromagnets arranged side by side in the same position.
  • Each electromagnet comprises a carcass made of insulating material supporting the connection terminals of the winding wire and a magnetic assembly consisting of two tubes placed in the carcass and over which is fitted a magnetic circuit before overmolding of the assembly.
  • the solenoid sets for solenoid valves are generally provided with a profiled part used for the connection of the solenoid valve in an installation. These profiled parts are formed during overmolding and have three connection pins intended to be plugged into an appropriate socket. However, there are different types of plug which vary both in their shape and profile as in the arrangement of the holes intended to receive the pins. In order to meet demand, the manufacturer must have sets of electromagnets having different types of connection means. The constitution of a stock means the multiplication of the number of sets of electromagnets having the same mechanical and electrical characteristics, but different means of connection.
  • the object of the present invention is to rationalize the manufacture of sets of electromagnets for solenoid valves so as to satisfy all needs, while reducing the necessary stock.
  • the method according to the invention is characterized in that the two electromagnets provided with their coils are made, that a connection block made of synthetic material is made separately, having, on one side, connection pieces provided with tongues and, on the other side, pins or other external connection means, that these tabs are plugged into the coils of the electromagnets, that the two electromagnets and the connection block are placed in a mold, and that the electromagnets are overmolded and a part of the connection block so as to connect the connection block to the electromagnets.
  • Figure 1 is a sectional view, along I-I of Figure 2, of a set of electromagnets obtained by the method according to the invention.
  • Figure 2 is a top view of the assembly of Figure 1, wherein one of the coils is shown in section along II-II and the plastic body is simply represented by its outline in phantom.
  • FIG. 3 is an exploded detail view of the lower part of the cylinder head of one of the electromagnets of FIGS. 1 and 2.
  • Figure 4 shows the pin holder connection block seen from the coils.
  • FIG. 5 schematically illustrates the process for overmolding the electromagnets and the connection block.
  • Figure 6 is a sectional view of a different pr connection block.
  • FIG. 7 is a rear view of the connection block of FIG. 6.
  • Figure 1 partially shows a solenoid valve consisting of a set of electromagnets 1 each comprising a movable core 2 provided with at least one valve 3 and held, in the absence of excitation of the electromagnets, against a valve seat 4 d 'a valve body 5 by a spring 6.
  • the two parallel valves are three-way.
  • Unit 1 comprises two electromagnets mounted side by side, in the same position, each consisting of a U-shaped cylinder head 7, the upper branch 7a of which is provided with a hole in which a pole piece 8 in the form of is fixed.
  • cylindrical core traversed by an axial duct 9.
  • the lower branch 7b of the cylinder head has a notch 10 in the shape of a U (FIG. 3) in which is driven a part 11 having a concave end 12 and two wings 13 and 14 of lower thickness to that of the part 11.
  • the wings 13 and 14 therefore extend over the lower branch 7b of the cylinder head.
  • Each of the electromagnets further consists of a coil body 15 of insulating material on which is wound a winding 16.
  • the coil body 15 has three flanges 17, 18 and 19.
  • the flange 17 has at least one thicker part which is pressed against the cylinder head 7.
  • the flange 18 is supported on the upper part of the part 11.
  • the flange 19 is supported on the external face of the branch 7b and has a cylindrical skirt 20 intended to come to fit in the chamber 21 of the valve body 5, the seal being ensured by a gasket 22.
  • the unit 1 further comprises a thermal switch 23 (FIG. 2) mounted between the windings of the two electromagnets, in the hottest zone.
  • a thermal switch 23 (FIG. 2) mounted between the windings of the two electromagnets, in the hottest zone.
  • One of the terminals of the thermal switch 23 is connected to one of the terminals of each of the coils.
  • the assembly further comprises a connection block 24 provided with three pins 25, 26 and 27 passing through the block 24 and four connection pieces 28, 29, 30 and 31, the inner ends of the pins being integral of the three connection pieces 28, 29 and 30 (Figure 4).
  • the pins 25, 26, 27 came in one piece with the respective connection pieces.
  • the ends of the connection pieces 29 to 31 are bent perpendicularly so as to form four contact tabs 29a, 30a, 31a and 31b. These tabs are fitted into the flanges 17 of the coil bodies in which they are in contact with the terminals of the coil.
  • the terminals 32 and 33 of the thermal switch are connected by welding or other method, to the connection pieces 28 and 31.
  • the connection block 24 has a groove 34 and a positioning fin 35.
  • the assembly is embedded by overmolding in a body of insulating material 36.
  • FIGS. 1 to 4 The assembly shown in FIGS. 1 to 4 is manufactured as follows:
  • Each of the electromagnets and the connection block 24 are made separately.
  • connection block 24 the connection pieces 28, 29, 30 and 31 are cut in one piece, leaving bridges 37, 38 and 39 shown in broken lines in FIG. 4.
  • the pins 25, 26 and 27, as well as the tongues 29a, 30a, 31a and 31b are formed by folding this part.
  • the pins are then assembled with a piece 40 of insulating material, by overmolding or in another known manner, the pins can in particular be simply threaded freely into holes provided for this purpose in the piece 40.
  • the bridges 37, 38 and 39 are then cut so as to separate from each other the four connection pieces 28, 29, 30 and 31.
  • the terminals 32 and 33 of the thermal switch 23 are then connected respectively to the connection pieces 28 and 31.
  • the tabs 29a, 30a, 31a and 31b are then inserted, by pairs, in each of the coils of the electromagnets, the thermal switch 23 coming to be placed between the coils.
  • the assembly is then placed in the cavity of a mold represented schematically by its two shells 41 and 42 in FIG. 5.
  • the synthetic material 36 injected into the mold not only coats the electromagnets, but also fills the groove 34 of the block connection 24 which thus forms a single piece with the electromagnets.
  • connection block 24 is the dimension of the circular flange 43 which closes the cavity 44 in which the connector 24 is housed.
  • the shape and dimension of the inner end of the connection block 24 can on the other hand vary.
  • the rest of the connection block 24 does not completely fill the cavity 44, but on the contrary leaves a clearance. This clearance is large enough to allow the cavity to receive connection blocks of different shapes and sizes.
  • connection block 124 has a thread 140 allowing the fixing of a connector by screwing. It is also provided with three pins 125, 126 and 127 and four connection pieces 128, 129, 130 and 131 having tabs 129a, 130a, 131a and 131b similar to the tabs of the first form of execution.
  • the connection pieces are obtained from a single piece cut and folded for the formation of the tabs and in which the connection pieces are provisionally connected by bridges 138 and 139. After fixing this single piece on pins 125 to 127, by crimping or in another known manner, the bridges 138 and 139 are cut to separate the four connection pieces from each other.
  • the connection piece 131 which is not integral with a pin, is temporarily held by two pins 141 and 142. After connection of the thermal switch 23, the connection block 124 is connected to the electromagnets by overmolding as described more high.
  • Pallets 35 and 135 are optional.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)
EP19910810759 1990-10-11 1991-09-27 Verfahren zur Herstellung einer Elektromagnetanordnung für Elektroventilen Expired - Lifetime EP0480873B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3278/90A CH683575A5 (fr) 1990-10-11 1990-10-11 Ensemble d'électroaimants pour électrovalves à commande directe.
CH3278/90 1990-10-11

Publications (2)

Publication Number Publication Date
EP0480873A1 true EP0480873A1 (de) 1992-04-15
EP0480873B1 EP0480873B1 (de) 1994-12-07

Family

ID=4252524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910810759 Expired - Lifetime EP0480873B1 (de) 1990-10-11 1991-09-27 Verfahren zur Herstellung einer Elektromagnetanordnung für Elektroventilen

Country Status (4)

Country Link
EP (1) EP0480873B1 (de)
JP (1) JPH04282087A (de)
CH (1) CH683575A5 (de)
DE (1) DE69105694T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113611478A (zh) * 2021-10-08 2021-11-05 余姚市三力信电磁阀有限公司 一种用于电磁阀的电磁线圈结构
WO2024002240A1 (zh) * 2022-07-01 2024-01-04 浙江三花汽车零部件有限公司 一种线圈组件以及电动阀

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3142038B2 (ja) * 1993-12-03 2001-03-07 株式会社デンソー 電磁弁
KR100425927B1 (ko) * 2001-12-21 2004-04-01 이기옥 솔레노이드 밸브

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377080A1 (fr) * 1977-01-11 1978-08-04 Grandclement G Electro-aimant pour electrovanne
GB2125224A (en) * 1982-08-13 1984-02-29 Messerschmitt Boelkow Blohm Electro-magnetic binary valve assembly
US4778293A (en) * 1986-08-01 1988-10-18 Oki Electric Industry Co., Ltd. Dot matrix print head
US4882558A (en) * 1988-02-18 1989-11-21 Aisin Seiki Kabushiki Kaisha Solenoid assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5815730Y2 (ja) * 1978-06-14 1983-03-30 株式会社デンソー 電磁弁
JPS5722479A (en) * 1980-07-14 1982-02-05 Aisin Warner Ltd Electromagnetic valve and its setting method
DE3430927A1 (de) * 1984-08-22 1986-03-06 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Elektromagnetanordnung mit ueberhitzungsschutz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377080A1 (fr) * 1977-01-11 1978-08-04 Grandclement G Electro-aimant pour electrovanne
GB2125224A (en) * 1982-08-13 1984-02-29 Messerschmitt Boelkow Blohm Electro-magnetic binary valve assembly
US4778293A (en) * 1986-08-01 1988-10-18 Oki Electric Industry Co., Ltd. Dot matrix print head
US4882558A (en) * 1988-02-18 1989-11-21 Aisin Seiki Kabushiki Kaisha Solenoid assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113611478A (zh) * 2021-10-08 2021-11-05 余姚市三力信电磁阀有限公司 一种用于电磁阀的电磁线圈结构
CN113611478B (zh) * 2021-10-08 2022-01-25 余姚市三力信电磁阀有限公司 一种用于电磁阀的电磁线圈结构
WO2024002240A1 (zh) * 2022-07-01 2024-01-04 浙江三花汽车零部件有限公司 一种线圈组件以及电动阀

Also Published As

Publication number Publication date
DE69105694D1 (de) 1995-01-19
DE69105694T2 (de) 1995-07-13
EP0480873B1 (de) 1994-12-07
CH683575A5 (fr) 1994-03-31
JPH04282087A (ja) 1992-10-07

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