Electromagnetic valve mechanism with low power consumption, high reliability and stability

Abstract

The electromagnetic valve mechanism comprises a valve body and a coil located at the upper end of the valve body, the valve body is provided with a water inlet and a water outlet, a valve port communicated with the water inlet and the water outlet is formed in the valve body, an iron core sleeve is installed in the coil, the upper end of the iron core sleeve is open, and a static iron core is placed in the upper end of the iron core sleeve. A sealing ring is installed between the static iron core and the iron core sleeve, a movable iron core extending up and down further extends into the iron core sleeve, the movable iron core is located below the static iron core, the lower end of the movable iron core is connected with a sealing gasket used for blocking the valve port, and a strong compression spring extending up and down is installed between the static iron core and the movable iron core. The electromagnetic valve is high in opening force, tight in closing, stable and reliable in the pressure range of 0-0.035 Mpaf, capable of working stably on the premise that the coil power is not increased and the product material cost is not increased, and capable of being widely applied to the fields of intelligent water boilers, energy storage and the like.

Description

Technical Field

[0001] The invention relates to a solenoid valve, in particular to a solenoid valve mechanism with low power consumption and high reliability and stability. Background Art

[0002] At present, the high and low pressure general solenoid valve products on the market generally adopt a straight-through structure. The coil power is very large, generally around 20 watts. The price of the raw material of the coil, the enameled wire, is high and the cost is expensive, which does not meet the current energy conservation and emission reduction requirements. Some equipment requires dozens of automatically controlled solenoid valve products, and the load of hundreds of watts or even thousands of watts far exceeds the power load designed for the relevant equipment. The top of the core sleeve of the traditional solenoid valve product is sealed. The assembly structure is to put a spring with very small elastic force into the core sleeve and then put a relatively small diameter moving iron core (about φ6.00mm) into the core sleeve to make a pure pressure-free structure. The starting pressure is generally within 0-0.008Mpa. The applicable industry is narrow and cannot meet the requirements of relevant special industries. In addition, due to the small spring pressure and low stability and reliability, it is often easy for the sealing gasket to be not pressed tightly due to the relatively small spring pressure, and leakage occurs. It is also more sensitive to impurities in the medium. Once impurities enter the valve cavity, it is also easy to leak due to insufficient spring force. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, an object of the present invention is to provide a solenoid valve mechanism with low power consumption, high reliability and stability.

[0004] The technical solution of the present invention is: a low-power, high-reliability and stability solenoid valve mechanism, including a valve body and a coil located at the upper end of the valve body, the valve body having a water inlet and a water outlet, the valve body having a valve port connected to the water inlet and the water outlet, an iron core sleeve installed in the coil, the upper end of the iron core sleeve is open and a static iron core is placed in it, a sealing ring is installed between the static iron core and the iron core sleeve, a moving iron core extending up and down is also extended into the iron core sleeve, the moving iron core is located below the static iron core, a sealing gasket for blocking the valve port is connected to the lower end of the moving iron core, and a strong compression spring extending up and down is installed between the static iron core and the moving iron core.

[0005] Furthermore, a groove is provided on the outer side of the static iron core, and the sealing ring is inserted into the groove.

[0006] Furthermore, a concave hole is provided at the upper end of the moving iron core, and the middle and lower parts of the strong compression spring extend into the concave hole, and the top of the strong compression spring abuts against the bottom of the stationary iron core.

[0007] Furthermore, the coil outer cover is provided with a U-shaped iron bracket, and the top of the static iron core is in contact with the inner wall of the upper end of the U-shaped iron bracket.

[0008] The low-power, high-reliability and stability solenoid valve mechanism provided by the present invention has the following beneficial effects: the static iron core is placed in the iron core sleeve, and it functions as an electromagnet when the coil is energized, thereby increasing the electromagnetic suction effect without increasing the coil power; when power is turned on, the strong electromagnetic suction of the moving iron core compresses the strong compression spring, and the moving iron core moves upward to bring the sealing gasket connected to its lower end away from the valve port, and the solenoid valve opens; after power is turned off, due to the disappearance of the electromagnetic suction, the moving iron core is pressed downward by the elastic force of the strong compression spring, thereby pressing the sealing gasket tightly against the valve port, thereby achieving the effect of closing the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0010] Figure 2 It is a cross-sectional schematic diagram of the present invention.

[0011] As shown in the figure: 1-valve body, 2-coil, 2.1-water inlet, 2.2-water outlet, 2.3-valve port, 3-iron core sleeve, 4-static iron core, 5-sealing ring, 6-moving iron core, 7-sealing gasket, 8-strong compression spring, 9-U-shaped iron bracket. DETAILED DESCRIPTION

[0012] In order to more intuitively and completely understand the technical solution of the present invention, a non-limiting feature description is now provided in conjunction with the accompanying drawings of the present invention as follows:

[0013] like Figure 1 , Figure 2 As shown, a low-power, high-reliability and stability solenoid valve mechanism comprises a valve body 1 and a coil 2 located at the upper end of the valve body 1, the valve body 1 having a water inlet 2.1 and a water outlet 2.2, the valve body 1 having a valve port 2.3 connected to the water inlet 2.1 and the water outlet 2.2, an iron core sleeve 3 is installed in the coil 2, the upper end of the iron core sleeve 3 is open and a static iron core 4 is placed in it, a sealing ring 5 is installed between the static iron core 4 and the iron core sleeve 3, a moving iron core 6 extending up and down is also extended into the iron core sleeve 3, the moving iron core 6 is located below the static iron core 4, the lower end of the moving iron core 6 is connected to a sealing gasket 7 for blocking the valve port 2.3, and a strong compression spring 8 extending up and down is installed between the static iron core 4 and the moving iron core 6.

[0014] The strong compression spring 8 can ensure that when the product is not powered on, the moving iron core 6 is firmly pressed downward by strong elastic force, so that the sealing gasket 7 tightly blocks the valve port 2.3.

[0015] In order to facilitate the fixing of the sealing ring 5, a groove is provided on the outer side of the static iron core 4, and the sealing ring 5 is inserted into the groove. The sealing ring 5 plays a sealing role.

[0016] A concave hole is provided at the upper end of the moving iron core 6, and the middle and lower parts of the strong compression spring 8 extend into the concave hole. The top of the strong compression spring 8 abuts against the bottom of the static iron core 4, and the strong compression spring 8 will not slide out of the concave hole.

[0017] The coil 2 is covered with a U-shaped iron bracket 9, and the top of the static iron core 4 is in contact with the inner wall of the upper end of the U-shaped iron bracket 9.

[0018] The static iron core 4 is placed in the iron core sleeve 3, and plays the function of turning into an electromagnet when the coil 2 is energized, thereby increasing the effect of electromagnetic attraction without increasing the power of the coil 2. When power is turned on, the strong electromagnetic attraction of the moving iron core 6 compresses the strong compression spring 8, and the moving iron core 6 moves upward to bring the sealing gasket 7 connected to its lower end away from the valve port 2.3, and the solenoid valve opens; after power is turned off, due to the disappearance of the electromagnetic attraction, the moving iron core 6 is pressed downward by the elastic force of the strong compression spring 8, thereby pressing the sealing gasket 7 tightly against the valve port 2.3, thereby achieving the effect of closing the solenoid valve.

[0019] The diameter of the static and dynamic core is larger than that of the traditional solenoid valve core, and the electromagnetic suction force can be enhanced when powered on.

[0020] The present invention has a strong opening force and closes tightly. It is stable and reliable within the pressure range of 0-0.035Mpaf. It can work stably without increasing the coil power and the product material cost. It can be widely used in the fields of intelligent water boilers, energy storage, etc.

[0021] Of course, the above are only preferred embodiments of the present invention, and the patent scope of the present invention is not limited thereto. All simple modifications and equivalent structural changes made using the contents of the specification and drawings of the present invention should be included in the patent protection scope of the present invention.

Claims

1. A low-power, high-reliability and stable electromagnetic valve mechanism, comprising a valve body and a coil located at the upper end of the valve body, the valve body having a water inlet and a water outlet, and a valve port in the valve body that is connected to the water inlet and the water outlet, characterized in that: An iron core sleeve is installed in the coil, the upper end of the iron core sleeve is open and a static iron core is placed in it, a sealing ring is installed between the static iron core and the iron core sleeve, and a moving iron core extending up and down is also extended into the iron core sleeve, the moving iron core is located below the static iron core, and a sealing gasket for blocking the valve port is connected to the lower end of the moving iron core, and a strong compression spring extending up and down is installed between the static iron core and the moving iron core.

2. A low-power, high-reliability and stability solenoid valve mechanism according to claim 1, characterized in that: A groove is arranged on the outer side of the static iron core, and the sealing ring is inserted into the groove.

3. The low-power, high-reliability and stability solenoid valve mechanism according to claim 1 is characterized in that: A concave hole is arranged at the upper end of the moving iron core, the middle and lower parts of the strong compression spring extend into the concave hole, and the top of the strong compression spring abuts against the bottom of the static iron core.

4. The low-power, high-reliability and stability solenoid valve mechanism according to claim 1, characterized in that: The outer cover of the coil is provided with a U-shaped iron bracket, and the top of the static iron core is in contact with the inner wall of the upper end of the U-shaped iron bracket.

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