US3778719A - Single body protective casing for solenoid assembly - Google Patents

Single body protective casing for solenoid assembly Download PDF

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Publication number
US3778719A
US3778719A US00210395A US3778719DA US3778719A US 3778719 A US3778719 A US 3778719A US 00210395 A US00210395 A US 00210395A US 3778719D A US3778719D A US 3778719DA US 3778719 A US3778719 A US 3778719A
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US
United States
Prior art keywords
casing
unit
slit
interior
combination
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.)
Expired - Lifetime
Application number
US00210395A
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English (en)
Inventor
H Kanawa
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.)
Yuken Kogyo Co Ltd
Original Assignee
Yuken Kogyo Co 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 Yuken Kogyo Co Ltd filed Critical Yuken Kogyo Co Ltd
Application granted granted Critical
Publication of US3778719A publication Critical patent/US3778719A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • ABSTRACT A solenoid assembly of which the electromagentic unit including an electrical coil, a magnetic core, a plunger and so forth are held by a protective casing made from resilient materials and housed in a cover.
  • the protec tive casing is slit in a desired direction and has an inside space having a corresponding shape to that of the electromagnetic unit.
  • This invention relates to a solenoid assembly of which an electromagetic unit including an electrical coil, a magnetic core and a plunger is held in a protective casing made of resilient materials and housed inside a cover member.
  • a conventional solenoid assembly is prepared in such a way that the electromagentic unit thereof, such as an electric coil, a magnetic core, a plunger, etc. is attached to a metal plate and housed within a cover to which the metal plate is secured.
  • the electromagnetic unit is housed inside a cover and held in position resiliently by a spring or the like.
  • the present invention has been contrived to obviate such defects in the conventional solenoid assembly.
  • the solenoid assembly such as an electrical coil, a magnetic core, a plunger, etc. are held by a retainer casing made of resilient material and housed inside a cover member to facilitate mounting and dismantling operations.
  • any mechanical shocks that generate during the operation of the device can be effectively absorbed through the dampening effect of the resilient material.
  • the noises also may be absorbed and the service life be lengthened.
  • the space inside the overall apparatus may be minimized and the dissipation of the heat generated in the coil to the outside is possible because of the thermal conductivity of the resilient materials.
  • FIG. 1 is a perspective exploded view of the solenoid assembly housed in a cover, I
  • FIG.,2 is a perspective view illustrative of the relationship between the protective casing and the electromagnetic unit, and.
  • FIGS. 3 to 9 respectively show formed on the protective casing.
  • A denotes a cover in which electromagnetic unit B and a protective casing C made of resilient materials may be housed.
  • the electromagnetic unit B comprises a magnetic core 2, an electrical coil 3 and a plunger 4. .
  • the plunger 4 is moved axially by the magnetic force of the coil 3 to move a valve spool, not shown.
  • the protective casing C is made of such resilient materials as rubber or synthetic resin and has one or more slits extending 'vertically, horizontally or in any desired directions from the outer surfaces 5, 6 to the inner surface 7.
  • a slit 8 is for inserting the electromagnetic different possible slits -unit B and is provided with a hole 9 at its terminating end to prevent the slit from becoming further enlarged.
  • the space 1 within the protective casing C is formed so as to fit snugly with the outer configuration of the electromagnetic unit B, leaving no empty spaces in the casing as the unit B is housed within the same as shown in FIG. 2.
  • the protective casing as above constructed When the protective casing as above constructed is detached from the moulding die (not shown), it is in the state as shown in FIG. 1, being open and the electromagnetic unit B is inserted within its opening part and closed, over which is placed the cover A.
  • the mechanical shock generated in the electromagnetic unit in operation can be absorbed through the dampening action of the protective casing made of the resilient materials and the mounting and dismantling operations of the solenoid assembly are made easier by virtue of the integrally formed protective casing, which reduced the number of component parts, thus simplifying the inventory management.
  • the electromagnetic unit will not slip out of the assembly even if the protective casing should accidentally be removed from the cover, thereby preventing possible losses of the component parts.
  • FIG. 2 illustrates how the electromagnet unit B is received in the hollow interior space 1 of the protective casing.
  • FIG. 2 illustrates how the configuration of this hollow interior space conforms to that of the unit B.
  • FIG. 3 illustrates an arrangement where the slit 8 extends vertically to enable the casing C to be spread apart in a manner similar to that illustrated in FIG. 1.
  • the slit extends horizontally so that the upper part of the casing may be tilted away from the lower part thereof.
  • FIGS. 5 and 9 respectively illustrate different locations of slits. In all of FIGS. 5-9 various slits extend vertically so that vertically extending portions of the casing can be spread apart from each other to receive the electromagnet unit.
  • FIG. 5-9 various slits extend vertically so that vertically extending portions of the casing can be spread apart from each other to receive the electromagnet unit.
  • FIGS. 7 and 9 there are a pair of mutually perpendicular slits which provide four sections of the casing C which can be spread apart from each other, these spreadable sections extending downwardly from the top in FIG. 7 and upwardly from the bottom in FIG. 9.
  • the slit 8 is similar to that of FIG. 3 in that it is situated in a plane which extends diagonally across the casing C, but in FIG. 9 the slit extends upwardly from the bottom while in FIG. 3 the slit extends downwardly from the top.
  • an electromagnet unit and a casing adapted to receive said unit, said casing consisting of a single body of resilient material formed in its interior with a hollow space conforming to the exterior configuration of said unit for receiving the latter with a snug fit in the interior of said casing, said casing being formed with a slit forming from parts of the casing portions which are spreadable away from each other to give access to the interior of said casing, said casing when positioned with said slit thereof closed and with said unit in the interior of said casing protecting said unit against mechanical shocks and at the same time dissipating heat, generated in the unit during operation thereof, due to the thermal conductivity of the resilient material of said casing.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Magnetically Actuated Valves (AREA)
US00210395A 1970-12-28 1971-12-21 Single body protective casing for solenoid assembly Expired - Lifetime US3778719A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1970132548U JPS5014129Y1 (de) 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
US3778719A true US3778719A (en) 1973-12-11

Family

ID=15083846

Family Applications (1)

Application Number Title Priority Date Filing Date
US00210395A Expired - Lifetime US3778719A (en) 1970-12-28 1971-12-21 Single body protective casing for solenoid assembly

Country Status (4)

Country Link
US (1) US3778719A (de)
JP (1) JPS5014129Y1 (de)
FR (1) FR2120906A5 (de)
GB (1) GB1316066A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839690A (en) * 1972-11-29 1974-10-01 Siemens Ag Insulating means for an electromagnetic relay
US20030189473A1 (en) * 2002-04-05 2003-10-09 Moeller Gmbh AC electromagnet
US7525404B2 (en) 2004-08-19 2009-04-28 Remy Inc. Moisture exhausting membrane in electrical solenoid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209096A (en) * 1962-05-24 1965-09-28 Reiner Plug-in relay construction
US3648203A (en) * 1970-08-26 1972-03-07 Honeywell Inc Relay switch housing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209096A (en) * 1962-05-24 1965-09-28 Reiner Plug-in relay construction
US3648203A (en) * 1970-08-26 1972-03-07 Honeywell Inc Relay switch housing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839690A (en) * 1972-11-29 1974-10-01 Siemens Ag Insulating means for an electromagnetic relay
US20030189473A1 (en) * 2002-04-05 2003-10-09 Moeller Gmbh AC electromagnet
US7525404B2 (en) 2004-08-19 2009-04-28 Remy Inc. Moisture exhausting membrane in electrical solenoid

Also Published As

Publication number Publication date
GB1316066A (en) 1973-05-09
DE2164634A1 (de) 1972-07-13
JPS5014129Y1 (de) 1975-05-01
FR2120906A5 (de) 1972-08-18
DE2164634B2 (de) 1976-02-12

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