CN211525654U

CN211525654U - Miniature electromagnetic valve

Info

Publication number: CN211525654U
Application number: CN201922293682.0U
Authority: CN
Inventors: 李标胜; 赵静
Original assignee: Dongguan Jingbofang Precision Electronics Co ltd
Current assignee: Dongguan Jingbofang Precision Electronics Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-18
Anticipated expiration: 2029-12-18

Abstract

The utility model provides a miniature solenoid valve, including the air cock, the case, a spring, the lid, the skeleton, the coil, the mouth that seals, casing and lead wire, the air cock passes through screw and lid fixed connection constitution cavity, be located the cavity and be equipped with case and a pot head and locate the spring of case below, the hole has been seted up at the lid middle part, the skeleton passes hole and the other pot head of spring that are located on the lid and locates on the skeleton, the coil winding is located on the skeleton, it is equipped with the mouth that seals to be located the skeleton bottom, the mouth that seals wears to locate in the hole that the casing middle part was seted up, casing and. The utility model discloses a side air cock design cooperation air cock, iron cover and casing form complete runner in the cavity, and the suction that outside negative pressure produced is unanimous with the electromagnetic force direction that the coil produced, has avoided the condition that the backstop piece drops; the second backstop piece has avoided the direct and skeleton contact in case bottom and produced a large amount of noises at the during operation, and the spring withstands the case simultaneously and makes the case not rock, further noise reduction.

Description

Miniature electromagnetic valve

Technical Field

The utility model relates to a valve field, concretely relates to miniature solenoid valve.

Background

At present, common electromagnetic valves on the market have the following disadvantages that one of the disadvantages is that an air inlet and an air outlet exist at the same time at one section of a valve body, even if glue is used for bonding a stop piece and a valve core together, the inlet is in a negative pressure environment for a long time, the stop piece is sucked by the inlet, the valve core operates for a long time, the adhesion of the glue between the valve core and the stop piece is reduced, the stop piece is loosened and falls off, and therefore the electromagnetic valve cannot realize a closing function, and the electromagnetic valve fails to work; secondly, the electromagnetic valve is often used in a vibration environment, the valve core can resonate, and the valve core vibrates along with an external mechanism to impact the framework, so that great noise is caused; thirdly, the collision between the valve core and the iron seal mouth is easy to generate obvious impact sound, and noise reduction measures are lacked, so that the noise is further generated when the valve works.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide a miniature solenoid valve of making an uproar at the end that can use under all kinds of pressure environment.

The utility model discloses technical scheme as follows:

the utility model provides a miniature solenoid valve, includes miniature solenoid valve main part, miniature solenoid valve main part comprises air cock, case, spring, lid, skeleton, coil, seal mouth, casing and lead wire, the air cock pass through the screw with lid fixed connection constitutes the cavity, is located be equipped with in the cavity the spring of case below is located to case and pot head, and the hole has been seted up at the lid middle part, the skeleton passes on the hole that is located on the lid and the other pot head of spring locate the skeleton, on the skeleton was located in the coil winding, it is equipped with the seal mouth to be located the skeleton bottom, the seal mouth wears to locate in the hole that the casing middle part was seted up, casing and lid block installation, the seal mouth bottom is equipped with the lead wire.

In the above scheme, be equipped with first sealing ring and first end separation blade between air cock and case, be located the case bottom and be equipped with the second and end the separation blade, and be located and be equipped with the second sealing ring between skeleton and the seal mouth.

In the above scheme, the diameter of the inner ring of the first sealing ring is equivalent to that of the first stopping sheet, and the first stopping sheet is nested inside the first sealing ring.

In the above scheme, the air tap side is equipped with the air inlet, and is located the air tap top and has seted up the gas outlet.

In the above scheme, the valve core is in a cylindrical structure, and the second stopping sheet protrudes out of the valve core.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a side air cock design cooperation air cock, iron cover and casing form complete runner in the cavity, provide a great elasticity by the lower part spring simultaneously, withhold valve opening with case upper portion first backstop piece, prevent to squint the phenomenon of gas leakage and produce, the suction that outside negative pressure produced is unanimous with the electromagnetic force direction that the coil produced, the atress is all the laminating power to case one side in the use of first backstop piece, has avoided the condition that the backstop piece drops; the bottom of the valve core is provided with the second stop piece which is protruded, so that the bottom of the valve core is prevented from directly contacting with the framework to generate a large amount of noise during working, and meanwhile, the spring supports the valve core to prevent the valve core from shaking, so that the noise is further reduced; finally, the utility model discloses a case of cylinder design, the effectual electromagnetic force that has increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an external structure view of a micro electromagnetic valve provided by the present invention;

FIG. 2 is an exploded view of the internal structure of the micro solenoid valve;

FIG. 3 is a sectional view showing the internal structure of the micro solenoid valve;

FIG. 4 is a structural section view of the valve core;

fig. 5 is a schematic structural view of the spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical solution of the present invention, the following description is made by using specific examples.

Examples

Referring to fig. 1 to 5, the present embodiment provides a micro solenoid valve, which includes a micro solenoid valve main body, the micro solenoid valve main body includes an air faucet 2, a valve core 5, a spring 7, a cover 8, a frame 9, a coil 10, a sealing nozzle 12, a casing 13, and a lead 14, the air faucet 2 is fixedly connected to the cover 8 through a screw 1 to form a cavity 203, the cavity 203 is provided with the valve core 5 and the spring 7 having one end sleeved under the valve core 5, the middle portion of the cover 8 is provided with a hole, the frame 9 passes through the hole on the cover 8 and the other end of the spring 7 is sleeved on the frame 9, the coil 10 is wound on the frame 9, the sealing nozzle 11 is provided at the bottom of the frame 9, the sealing nozzle 11 is inserted into the hole provided at the middle portion of the casing 13, the casing 13 is.

In this embodiment, a first sealing ring 3 and a first stopping piece 4 are disposed between the air faucet 2 and the valve core 5, a second stopping piece 6 is disposed at the bottom of the valve core 5, and a second sealing ring 11 is disposed between the framework 9 and the sealing nozzle 12.

Preferably, the diameter of the inner ring of the first sealing ring 3 is equivalent to the diameter of the first stop piece 4, and the first stop piece 4 is nested inside the first sealing ring 43.

In this embodiment, the air faucet 2 has an air inlet 204 at a side thereof and an air outlet 201 at a top thereof.

In the present embodiment, the valve core 5 is a cylindrical structure, and the second stopping sheet 6 protrudes from the valve core 5.

The working principle is as follows:

the inside of the miniature solenoid valve cavity forms a complete flow channel, when the air inlet 204 is connected to the outside, the valve is not electrified, negative pressure generated outside is led into the cavity of the valve body 203, at the moment, the lower spring 7 provides larger elastic force to push the stop sheet at the upper part of the valve core 5 against the valve opening 202, and the cavity 203 is driven to have certain vacuum degree.

The preferred spring uses great power spring 7, can not rock by the top case, and backstop piece 4 area is done greatly, can increase the contact surface, prevents the skew gas leakage.

When the valve is electrified, the valve core is pulled down through a magnetic field generated by the electrified coil 10, the valve port 202 is opened, and gas enters from the exhaust port 201 to complete a working cycle.

Preferably, the valve core is made into a round shape, so that the electromagnetic force can be effectively increased, and the stop sheet 6 at the lower part of the valve core is arranged to protrude out of the lower surface of the valve core, so that the noise generated by the direct metal impact of the valve core 5 and the iron seal mouth 12 is avoided.

This embodiment miniature solenoid valve can effectually solve the mesopore and hold end separation blade 4, causes the condition that end separation blade 4 drops from case 5, and the innovation sets up the air inlet of valve in the side of valve, and the suction that outside negative pressure produced is unanimous with the electromagnetic force direction that coil 10 produced, and the atress all is the laminating force to case 5 one side in the use of end separation blade 4, the condition that end separation blade 4 drops can not appear.

The spring 7 uses a spring with larger force, and can not shake against the valve core, and can not generate resonance noise under the condition of external force.

Claims

1. The utility model provides a miniature solenoid valve, includes miniature solenoid valve main part, its characterized in that, miniature solenoid valve main part includes air cock, case, spring, lid, skeleton, coil, seal mouth, casing and lead wire, the air cock pass through the screw with lid fixed connection constitutes the cavity, is located be equipped with in the cavity the spring of case below is located to case and pot head, and the hole has been seted up at the lid middle part, the skeleton passes hole and the other pot head of spring that are located on the lid and locates on the skeleton, the coil winding is located on the skeleton, is located the skeleton bottom and is equipped with the seal mouth, the seal mouth wears to locate in the hole that the casing middle part was seted up, casing and lid block installation, the seal mouth bottom is equipped with the lead wire.

2. The micro-electromagnetic valve according to claim 1, wherein a first sealing ring and a first stop piece are disposed between the air nozzle and the valve core, a second stop piece is disposed at the bottom of the valve core, and a second sealing ring is disposed between the frame and the sealing nozzle.

3. A miniature electromagnetic valve according to claim 2 wherein the diameter of the inner ring of said first sealing ring is comparable to the diameter of said first stop tab, said first stop tab being nested within said first sealing ring.

4. The micro-electromagnetic valve according to claim 1, wherein the air nozzle has an air inlet at a side thereof and an air outlet at a top thereof.

5. A miniature electromagnetic valve according to claim 2 wherein said spool is cylindrical in configuration and said second stop tab protrudes from said spool.