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CN-122025340-A - Switch electromagnet comprising magnetic conductive gasket

CN122025340ACN 122025340 ACN122025340 ACN 122025340ACN-122025340-A

Abstract

The invention relates to the technical field of electromagnetic control, and discloses a switch electromagnet comprising a magnetic conduction gasket. The switch electromagnet comprises a guide sleeve, a coil shell, a magnetic conducting gasket, a coil framework, a fixed armature, a mechanical spring, a thimble and a movable armature, wherein the coil is wound on the coil framework and is arranged inside the coil shell, the magnetic conducting gasket is arranged on one side of the coil framework, the coil shell, the fixed armature, the movable armature and the magnetic conducting gasket are made of magnetic conducting materials, an electromagnet magnetic circuit is formed together, the fixed armature and the movable armature are axially provided with unthreaded holes and are used for installing the mechanical spring and the thimble, and a limiting device is arranged on the left side of the movable armature, so that the mechanical spring has precompression under an initial state, and the movable armature moves to the right side in an inner hole of the guide sleeve until being attracted with the fixed armature when the switch electromagnet works. The invention optimizes the magnetic circuit of the electromagnet, thereby reducing the power consumption and improving the output force characteristic.

Inventors

  • GUO WENKANG
  • LIU XIANGYU
  • TIAN WEI
  • DONG BOHAN
  • SONG ZHIYI

Assignees

  • 北京自动化控制设备研究所

Dates

Publication Date
20260512
Application Date
20251231

Claims (7)

  1. 1. The utility model provides a switch electromagnet containing magnetic conduction gasket, a serial communication port, this switch electromagnet includes uide bushing (1), coil housing (2), magnetic conduction gasket (3), coil (4), coil skeleton (5), fixed armature (6), mechanical spring (7), thimble (8) and moving armature (9), coil (4) winding is on coil skeleton (5), and it is inside to put in coil housing (2), magnetic conduction gasket (3) set up in coil skeleton (5) one side, coil housing (2), fixed armature (6), moving armature (9) and magnetic conduction gasket (3) all adopt magnetic conduction material, constitute the electro-magnet magnetic circuit jointly, fixed armature (6) and moving armature (9) set up the unthreaded hole axially, be used for installing mechanical spring (7) and thimble (8), moving armature (9) left side is provided with stop device, make mechanical spring (7) have precompression volume under initial state, when switch electromagnet works, moving armature (9) are in the hole motion to right side of uide bushing (1), until with fixed armature (6) actuation.
  2. 2. Switching electromagnet according to claim 1, characterized in that the moving armature (9) is radially provided with damping through holes for ensuring stability during movement of the moving armature.
  3. 3. Switching electromagnet according to claim 2, characterized in that the coil former (5), the guide sleeve (1), the mechanical spring (7) and the ejector pin (8) are all made of non-magnetic materials.
  4. 4. A switching electromagnet according to claim 3, wherein the non-magnetic material is polytetrafluoroethylene or stainless steel 316L.
  5. 5. The switching electromagnet according to any one of claims 1-4, wherein the magnetically permeable material is electrical pure iron DT4 or Q235.
  6. 6. Switching electromagnet according to any one of claims 1-5, characterized in that the magnetically permeable shim (3) is arranged in a recess in one side of the coil former (5).
  7. 7. The switching electromagnet according to any one of claims 1 to 5, wherein the fixed armature is of a boss type, the movable armature is of a cylinder type, and the ejector pin is of a boss type.

Description

Switch electromagnet comprising magnetic conductive gasket Technical Field The invention relates to the technical field of electromagnetic control, in particular to a switch electromagnet comprising a magnetic conduction gasket. Background The electromagnet generates magnetic force through current to generate motion, is widely applied to the fields of machinery, electricity, industrial production and the like, and is widely used in the use environment in which the current is needed to keep the mechanical state or generate mechanical motion. However, in the application process, the common electromagnet often has the problem of low attraction strength, in order to ensure the attraction force in the attraction state, the working current of the coil or the number of turns of the coil must be increased, so that the heating value of the electromagnet is increased, the electromagnet can only work in a short time, potential safety hazards are brought, and the coil is burnt out when serious, so that the control is invalid and other problems are caused. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides a switch electromagnet comprising a magnetic conduction gasket, which can solve the problems in the prior art. The technical scheme includes that the switch electromagnet comprises a guide sleeve, a coil housing, a magnetic gasket, a coil framework, a fixed armature, a mechanical spring, a thimble and a movable armature, wherein the coil is wound on the coil framework and is arranged in the coil housing, the magnetic gasket is arranged on one side of the coil framework, the coil housing, the fixed armature, the movable armature and the magnetic gasket are made of magnetic materials and jointly form an electromagnet magnetic circuit, the fixed armature and the movable armature are axially provided with unthreaded holes for installing the mechanical spring and the thimble, and a limiting device is arranged on the left side of the movable armature, so that the mechanical spring has precompression in an initial state, and the movable armature moves to the right side in an inner hole of the guide sleeve until the movable armature is attracted with the fixed armature when the switch electromagnet works. Preferably, the movable armature is radially provided with a damping through hole for ensuring stability in the moving process of the movable armature. Preferably, the coil framework, the guide sleeve, the mechanical spring and the thimble are all made of non-magnetic materials. Preferably, the non-magnetic material is polytetrafluoroethylene, or stainless steel 316L. Preferably, the magnetically permeable material is electrical pure iron DT4 or Q235. Preferably, the magnetic conductive gasket is arranged in the groove at one side of the coil skeleton. Preferably, the fixed armature is boss-type, the movable armature is cylinder-type, and the thimble is boss-type. Through the technical scheme, the magnetic conduction gasket can be arranged on one side of the coil skeleton, so that the magnetic leakage of the position where the magnetic conduction gasket is arranged is reduced, the magnetic flux utilization rate of the magnetic circuit of the electromagnet is increased, the magnetic circuit of the electromagnet is optimized, the power consumption is reduced, and the output force characteristic is improved. Drawings The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. FIG. 1 is a cross-sectional view of a switching electromagnet including a magnetically permeable spacer according to an embodiment of the present invention; fig. 2 is an output force versus displacement characteristic of an electromagnet without and with a magnetically permeable spacer. Description of the reference numerals 1. A guide sleeve 2, a coil shell 3, a magnetic conduction gasket 4, a coil 5 and a coil framework, 6, fixed armature, 7, mechanical spring, 8, thimble, 9, moving armature. Detailed Description Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. It should be noted here that, in order to avoid obscuring the