CN210088134U

CN210088134U - Noise reduction electromagnetic valve

Info

Publication number: CN210088134U
Application number: CN201920906872.2U
Authority: CN
Inventors: 邵巧明; 陈鹏华; 冯星星; 邱进; 楼琳达
Original assignee: Jinhua Hongchang Electrlcal Equipment Co ltd
Current assignee: Jinhua Hongchang Electrlcal Equipment Co ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-02-18
Anticipated expiration: 2029-06-17

Abstract

The utility model provides a solenoid valve of making an uproar falls belongs to solenoid valve technical field. The electromagnetic valve solves the problem that the conventional electromagnetic valve core and the magnetic conduction core collide with each other to generate noise during the interaction. The utility model discloses a valve main part and set up solenoid, iron core, magnetic conduction core and reset spring in the valve main part, solenoid circular telegram back produces magnetic field, makes iron core and magnetic conduction core magnetization and mutual actuation, still includes the blotter, and the blotter is located between iron core and the magnetic conduction core. The utility model has the advantages of can effectively reduce the noise that iron core striking magnetic core produced, can absorb the buffering power moreover, make solenoid valve work more stable.

Description

Noise reduction electromagnetic valve

Technical Field

The utility model relates to a solenoid valve technical field specifically is a solenoid valve of making an uproar falls.

Background

The existing water equipment such as washing machine and water purifier is usually provided with a water inlet electromagnetic valve for controlling the on-off of water flow, when the working power supply adopts a direct current power supply, an electromagnetic coil is electrified to generate a magnetic field to promote the iron core and the magnetic core to be magnetized and mutually attracted, and the mutual attraction of the two iron pieces can generate impact sound, which is the main source of the noise of the direct current electromagnetic valve. Along with the higher and higher requirements of the market on the performance of the electromagnetic valve, the original electromagnetic valve structure is difficult to meet the noise requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an effective noise reduction's the solenoid valve of making an uproar that falls to the above-mentioned problem that exists among the prior art.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides a solenoid valve of making an uproar falls, includes the valve main part and sets up solenoid, iron core, magnetic core and reset spring in the valve main part, solenoid produces magnetic field after the circular telegram, makes iron core and magnetic core magnetization and mutual actuation, its characterized in that still includes the blotter, the blotter be located between iron core and the magnetic core.

The utility model discloses a theory of operation: when the electromagnetic valve is electrified to work, the electromagnetic coil generates a magnetic field after being electrified to promote the iron core and the magnetic conduction core to be magnetized and mutually attracted, and due to the arrangement of the buffer cushion, the magnetic conduction core firstly contacts with the buffer cushion to play a role in buffering the attraction of the iron core, so that the impact force and the impact speed of the iron core are reduced, and then the magnetic conduction core and the iron core are attracted together, so that the noise is reduced. Adopt the setting of above-mentioned structure, can effectively reduce the noise that the iron core striking magnetic core produced, can absorb the cushion effect moreover, make solenoid valve work more stable.

In the above noise reduction solenoid valve, an installation groove is formed in one end, facing the magnetic core, of the iron core, and the installation groove is used for installing the cushion pad.

In the above noise reduction solenoid valve, the cushion pad is a rubber pad.

In foretell solenoid valve of making an uproar falls, the valve main part include plastic envelope, lower iron plate, go up iron plate and casing, the plastic envelope be connected with lower iron plate, last iron plate be connected with lower iron plate and press from both sides the plastic envelope in the middle of with the plastic envelope, lower iron plate, the integrative and casing that connect of going up iron plate be connected, form the inner chamber between plastic envelope and the casing, solenoid, iron core, magnetic core, reset spring and blotter all be located the inner chamber, magnetic core connect the plastic envelope top and with last iron plate laminating.

In the noise reduction electromagnetic valve, the shell is internally provided with a sealing ring, and the sealing ring is arranged on the outer ring of the iron core and fixed through a gap between the lower iron plate and the shell.

In the above noise reduction solenoid valve, a rubber core is further disposed at an end of the iron core opposite to the magnetic conductive core.

In the noise reduction electromagnetic valve, the shell is internally provided with an isolation sleeve, one end of the isolation sleeve is attached to the lower iron plate, and the other end of the isolation sleeve is attached to the inner wall of the shell.

In the noise reduction electromagnetic valve, the plastic package and the lower iron plate, the upper iron plate and the lower iron plate, and the shell and the upper and lower iron plates are all fixed through connecting pieces.

Compared with the prior art, the noise reduction electromagnetic valve adopting the technical scheme has the following beneficial effects: the utility model discloses a solenoid valve of making an uproar falls can effectively reduce the noise that iron core striking magnetic core produced, can absorb the cushion effect moreover, makes solenoid valve work more stable.

Drawings

Fig. 1 is an isometric schematic view of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a schematic cross-sectional view of the present invention;

fig. 4 is a schematic view of the structure of the cushion pad of the present invention.

In the figure, 1, connecting piece; 2. an upper iron plate; 3. plastic packaging; 4. a lower iron plate; 5. a seal ring; 6. an isolation sleeve; 7. a return spring; 8. a magnetically conductive core; 9. a cushion pad; 10. an iron core; 11. a rubber core; 12. a housing; 13. an electromagnetic coil.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-4, the noise reduction solenoid valve comprises a valve body, and an electromagnetic coil 13, an iron core 10, a magnetic core 8 and a return spring 7 which are arranged in the valve body, wherein the electromagnetic coil 13 generates a magnetic field after being electrified to promote the iron core 10 and the magnetic core 8 to be magnetized and attracted with each other, and the noise reduction solenoid valve further comprises a buffer pad 9, and the buffer pad 9 is positioned between the iron core 10 and the magnetic core 8.

In a further elaboration, the iron core 10 is connected towards the end of the magnetic core 8 and is provided with a mounting groove, and the mounting groove is used for mounting the cushion pad 9. By adopting the arrangement of the mechanism, the cushion pad 9 moves along with the iron core 10, and the cushion pad 9 is ensured to contact and collide with the magnetic core 8 firstly.

In more detail, the cushion pad 9 is a rubber pad. The rubber pad is usually made of natural rubber, styrene butadiene rubber, butyl rubber, nitrile butadiene rubber and the like, and has good compressibility, wear resistance and elongation.

Further, the valve main body comprises a plastic package 3, a lower iron plate 4, an upper iron plate 2 and a shell 12, the plastic package 3 is connected with the lower iron plate 4, the upper iron plate 2 is connected with the lower iron plate 4 and clamps the plastic package 3 in the middle, the plastic package 3, the lower iron plate 4 and the upper iron plate 2 are connected into a whole and connected with the shell 12, an inner cavity is formed between the plastic package 3 and the shell 12, the electromagnetic coil 13, the iron core 10, the magnetic core 8, the reset spring 7 and the buffer pad 9 are located in the inner cavity, and the magnetic core 8 is connected with the top of the plastic package 3 and is attached to the upper iron plate 2. Easy dismounting is favorable to improving production efficiency.

To be more specific, in order to enhance the sealing performance, a sealing ring 5 is further provided inside the housing 12, and the sealing ring 5 is provided on the outer ring of the iron core 10 and fixed by a gap between the lower iron plate 4 and the housing 12. The sealing ring 5 is a common O-shaped ring in the market.

In more detail, the end of the iron core 10 opposite to the magnetic core 8 is further provided with a rubber core 11. The rubber core 11 can effectively seal and open the outlet of the shell 12, and rubber has precious elastic high polymer materials and a wider temperature range, and can generate larger deformation by giving smaller stress in different media, and the deformation can provide contact pressure, compensate leakage gaps and achieve the purpose of sealing.

To put it more specifically, in order to limit the iron core 10 to reciprocate in the inner cavity only along the height direction of the shell 12, the shell 12 is further provided with an isolation sleeve 6, one end of the isolation sleeve 6 is attached to the lower iron plate 4, and the other end is attached to the inner wall of the shell 12.

Preferably, in order to facilitate the disassembly and assembly and greatly improve the maintainability, the plastic package 3 and the lower iron plate 4, the upper iron plate 2 and the lower iron plate 4, and the shell 12 and the upper and lower iron plates 4 are fixed by the connecting piece 1.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the connecting member 1, the upper iron plate 2, the plastic package 3, the lower iron plate 4, the seal ring 5, the spacer 6, the return spring 7, the magnetic core 8, the cushion pad 9, the iron core 10, the rubber core 11, the housing 12, the electromagnetic coil 13, etc. are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a solenoid valve of making an uproar falls, includes the valve main part and sets up solenoid (13), iron core (10), magnetic core (8) and reset spring (7) in the valve main part, solenoid (13) production magnetic field after the circular telegram impels iron core (10) and magnetic core (8) magnetization and mutual actuation, its characterized in that still includes blotter (9), blotter (9) be located between iron core (10) and magnetic core (8).

2. A noise reduction solenoid valve according to claim 1, wherein an installation groove is formed at one end of the iron core (10) facing the magnetic core (8) and used for installing the buffer pad (9).

3. A noise reducing solenoid valve according to claim 2, characterised in that the buffer (9) is a rubber pad.

4. The noise reduction electromagnetic valve according to claim 1, wherein the valve body comprises a plastic package (3), a lower iron plate (4), an upper iron plate (2) and a housing (12), the plastic package (3) is connected with the lower iron plate (4), the upper iron plate (2) is connected with the lower iron plate (4) and clamps the plastic package (3) in the middle, the plastic package (3), the lower iron plate (4) and the upper iron plate (2) are connected into a whole and are connected with the housing (12), an inner cavity is formed between the plastic package (3) and the housing (12), the electromagnetic coil (13), the iron core (10), the magnetic core (8), the reset spring (7) and the cushion pad (9) are located in the inner cavity, and the magnetic core (8) is connected with the top of the plastic package (3) and is attached to the upper iron plate (2).

5. A noise reduction solenoid valve according to claim 4, characterized in that a sealing ring (5) is further arranged inside the housing (12), and the sealing ring (5) is arranged on the outer ring of the iron core (10) and fixed through a gap between the lower iron plate (4) and the housing (12).

6. A noise reduction solenoid valve according to claim 4, characterized in that the end of the iron core (10) facing away from the magnetic core (8) is further provided with a rubber core (11).

7. A noise reduction electromagnetic valve according to claim 4, characterized in that an isolation sleeve (6) is further arranged inside the housing (12), one end of the isolation sleeve (6) is attached to the lower iron plate (4), and the other end is attached to the inner wall of the housing (12).

8. The noise reduction electromagnetic valve according to claim 4, wherein the plastic package (3) and the lower iron plate (4), the upper iron plate (2) and the lower iron plate (4), and the housing (12) and the upper and lower iron plates (4) are fixed by the connecting member (1).