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CN-224229386-U - Noise reduction structure for electromagnetic valve and electromagnetic valve

CN224229386UCN 224229386 UCN224229386 UCN 224229386UCN-224229386-U

Abstract

The embodiment of the application relates to the technical field of electromagnetic valves, and discloses a noise reduction structure for an electromagnetic valve, which comprises a shell body, a movable iron core and a static iron core, wherein the shell body is used for limiting a cavity, the movable iron core and the static iron core are sequentially arranged in the cavity of the shell body in a penetrating way, a through hole is formed in the movable iron core along the axial direction, and a rubber part is formed in the penetrating hole in a filling way, wherein a first boss protruding out of the movable iron core is formed at the end part of the rubber part, and the first boss is contacted with the static iron core under the condition that the static iron core and the movable iron core collide, so that noise generated by collision is reduced. In addition, the rubber piece is closely attached to the inner wall of the through hole of the movable iron core to form a sealing integrated structure, the number of parts and assembly steps are reduced by the integrated structural design, and the assembly difficulty and error rate are reduced. The application also discloses an electromagnetic valve.

Inventors

  • LONG YONGHONG
  • CAO JUNMIN

Assignees

  • 上海联迅智控技术有限公司

Dates

Publication Date
20260512
Application Date
20250617

Claims (10)

  1. 1. The noise reduction structure for the electromagnetic valve comprises a shell body which surrounds a cavity, and is characterized by also comprising a movable iron core and a static iron core which are sequentially penetrated in the cavity of the shell body, wherein the movable iron core is provided with a through hole along the axial direction, and a rubber piece is poured and formed in the through hole; The rubber piece is provided with a first boss protruding out of the movable iron core at the end part of the movable iron core, and the first boss is contacted with the static iron core under the condition that the static iron core and the movable iron core collide, so that noise generated by collision is reduced.
  2. 2. The noise reduction structure according to claim 1, wherein the first end portion of the movable core is configured with a countersink such that a partial region of the first boss is embedded in the countersink; wherein, the opening area of the sinking groove is larger than the area of the through hole.
  3. 3. The noise reducing structure of claim 1, wherein, The bottom wall of the sinking groove is a plane vertical to the axial direction of the movable iron core or an inclined plane, and the bottom wall of the sinking groove is inclined from the side wall of the through hole to the side wall of the sinking groove under the condition that the bottom wall of the sinking groove is the inclined plane.
  4. 4. The noise reducing structure of claim 1, wherein, The rubber member is formed with a second boss protruding from the movable core at the other end portion of the movable core to reduce the sound generated at the time of impact.
  5. 5. The noise reducing structure of claim 1, wherein, The outer peripheral surface of the movable iron core is provided with a plane limiting structure so as to limit the rotation of the movable iron core.
  6. 6. The noise reducing structure of claim 1, wherein, The outer peripheral surface of the movable iron core is provided with a plurality of groups of strip-shaped bulges so as to reduce the contact area between the movable iron core and the shell.
  7. 7. The noise reducing structure according to claim 1, wherein the stationary core is axially configured with a receiving cavity for providing the spring assembly; Wherein, the stationary core is constructed with the bulge loop in the tip towards the movable core, and the bulge loop encircles along holding chamber open-ended circumference and sets up.
  8. 8. The noise reducing structure of claim 7, wherein, The movable iron core and the static iron core are coaxially arranged, and the radius of the first boss is larger than or equal to that of the convex ring.
  9. 9. The noise reducing structure according to any one of claims 1 to 8, The static iron core is provided with a groove at the end part deviating from the movable iron core, the groove is communicated with the accommodating cavity and is used for accommodating sintered cotton so as to reduce noise.
  10. 10. A solenoid valve comprising a noise reducing structure for a solenoid valve as claimed in any one of claims 1 to 9.

Description

Noise reduction structure for electromagnetic valve and electromagnetic valve Technical Field The application relates to the technical field of electromagnetic valves, in particular to a noise reduction structure for an electromagnetic valve and the electromagnetic valve. Background The electromagnetic valve is an electromagnetic control industrial device, is an automatic basic element for controlling fluid media, and mainly adopts the working principle that the movable iron core and the static iron core are attracted by utilizing the magnetization effect of a coil after being electrified, so that the regulation and control of the direction, flow, speed and the like of the media are realized. However, the movable iron core and the static iron core are attracted at a high speed, so that the impact force is high, and large noise is generated due to impact during the attraction, so that noise pollution is caused. Disclosure of utility model It is an object of the present application to provide a noise reducing structure for a solenoid valve and a solenoid valve, at least to solve the above-mentioned problems. In order to achieve the above-mentioned objective, some embodiments of the present application provide a noise reduction structure for an electromagnetic valve, which includes a housing defining a cavity, a movable core and a static core sequentially penetrating the cavity of the housing, wherein the movable core is axially configured with a through hole, and a rubber member is poured into the through hole, and the rubber member is configured with a first boss protruding from the movable core at an end of the movable core, and the first boss contacts with the static core when the static core and the movable core collide, so as to reduce noise generated by collision. Some embodiments of the present application further provide a solenoid valve, including the noise reduction structure for a solenoid valve provided in the foregoing embodiments. Compared with the related art, in the scheme provided by the embodiment of the application, the rubber piece is poured into the through hole of the movable iron core, the first boss is formed at the end part of the movable iron core, when the static iron core and the movable iron core collide, the first boss is contacted with the static iron core, so that impact energy generated by collision can be effectively absorbed, noise generated by collision is reduced, in addition, the rubber piece is tightly attached to the inner wall of the through hole of the movable iron core to form a sealing integrated structure, the number of parts and assembly steps are reduced due to the integrated structural design, and the assembly difficulty and error rate are reduced. Drawings One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated. FIG. 1 is a schematic cross-sectional view of a noise reducing structure for a solenoid valve provided by an embodiment of the present disclosure; FIG. 2 is an exploded schematic view of a noise reduction structure for a solenoid valve provided by an embodiment of the present disclosure; FIG. 3 is a schematic cross-sectional view of a stationary core provided by an embodiment of the present disclosure; fig. 4 is a schematic structural view of a movable iron core provided in an embodiment of the present disclosure; FIG. 5 is a schematic cross-sectional view of another structure of a plunger provided by an embodiment of the present disclosure; FIG. 6 is a schematic cross-sectional view of another structure of a plunger provided by an embodiment of the present disclosure; Fig. 7 is another schematic structural view of a movable iron core provided in an embodiment of the present disclosure; fig. 8 is a schematic cross-sectional view of another structure of a moving core provided in an embodiment of the present disclosure. Reference numerals: 10 parts of a shell, 20 parts of a movable iron core, 201 parts of a plane limiting structure, 202 parts of a protrusion, 30 parts of a rubber piece, 301 parts of a first boss, 302 parts of a second boss, 40 parts of a static iron core, 401 parts of a containing cavity, 402 parts of a convex ring, 403 parts of a groove, 50 parts of a spring assembly and 60 parts of sintered cotton. Detailed Description For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other