A new type of solenoid valve

Abstract

The present invention relates to a new type of solenoid valve in the field of solenoid valve technology, comprising a valve body and a valve mechanism, wherein an inlet channel and an outlet channel are arranged in the valve body, the valve mechanism comprises a seal for isolating the valve cavity and an electromagnetic structure for driving the seal to move, the electromagnetic structure comprises a cover body, a magnet and a coil, and the magnet and the coil are installed in the cover body at intervals. The present invention embeds the magnet and the coil in the cover body, thereby greatly reducing magnetic leakage, improving the magnetic field utilization rate of the coil, reducing the number of coil turns, reducing power consumption, and effectively solving the heating problem of the solenoid valve. At the same time, the cover body can effectively isolate the external magnetic field, avoid interference with the internal electromagnetic structure, and ensure the stability of the working operation of the solenoid valve; the coil and the valve core with cantilever support are arranged in the gap between the isolation cover and the magnet, so that the solenoid valve will not have any mechanical friction during the process of driving the switch, and the problems of wear and mechanical noise of the solenoid valve are completely solved.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valves, and in particular to a novel solenoid valve. Background Art

[0002] The working principle of the solenoid valve is to energize the electromagnetic coil, so that the iron core wrapped with the electromagnetic coil generates magnetism, attracting the armature under the iron core to move, thereby driving the valve port sealing member to separate from the valve port, opening the valve and allowing gas and liquid to pass through. Figure 1-2 As shown, the solenoid valve in the prior art has no external protective structure for its coil 23, resulting in severe magnetic flux leakage, low magnetic field utilization, and susceptibility to external magnetic field interference. Furthermore, its valve core 22 is large in size and mass, requiring a large amount of kinetic energy during switching motion, which increases the number of turns of the coil 23, increases power consumption, and generates severe heat without active heat dissipation, making it unsuitable for long-term use. Furthermore, its valve core 22 directly contacts the valve body 21 through sliding friction, making it prone to jamming and failure, and also generating considerable noise, making it unsuitable for widespread use. Therefore, the present invention proposes a new type of solenoid valve. Summary of the Invention

[0003] The present invention provides a novel solenoid valve, which completely solves the problems of noise, wear, power consumption and magnetic field interference of the solenoid valve by optimizing the electromagnetic structure.

[0004] The object of the present invention is achieved in the following ways:

[0005] A new type of solenoid valve includes a valve body and a valve mechanism arranged in the valve body, the valve body is provided with an inlet channel and an outlet channel for conducting with the outside, the inlet channel and the outlet channel are connected through a valve cavity, the valve mechanism includes a seal for isolating the valve cavity and an electromagnetic structure for driving the seal to move, the electromagnetic structure includes a cover, a magnet and a coil, and the magnet and coil are installed in the cover at intervals.

[0006] Furthermore, the valve body is composed of an upper cover and a base.

[0007] Furthermore, the sealing member is composed of a sealing ring and a valve core for isolating the valve cavity, and the sealing ring surrounds between the upper cover and the base.

[0008] Furthermore, a positioning ring is provided between the upper cover and the base, and the sealing ring is embedded in the positioning ring.

[0009] Furthermore, protrusions are provided at both the upper and lower ends of the sealing ring.

[0010] Furthermore, the valve core is connected to the sealing ring through a plurality of cantilevers, and the valve core is connected to the coil through a cover.

[0011] Furthermore, the outlet channel is connected to the valve cavity through the cover body and the magnet, and the upper and lower ends of the valve core are respectively provided with a head and a tail, and the head and the tail are respectively used to separate the valve cavity and the outlet channel.

[0012] Furthermore, a connecting channel communicating with the outside is provided on one side of the valve body, and the connecting channel is connected to the valve cavity.

[0013] Furthermore, sound-absorbing foam is installed in the outlet channel.

[0014] Furthermore, a gasket is provided on the upper end of the magnet.

[0015] Beneficial effects of the present invention:

[0016] 1. The magnet and coil are built into the cover, which greatly reduces magnetic leakage, improves the magnetic field utilization of the coil, reduces the number of coil turns, reduces power consumption, and effectively solves the heating problem of the solenoid valve. At the same time, the cover can effectively isolate the external magnetic field, prevent the internal electromagnetic structure from being interfered with, and ensure the stability of the solenoid valve operation;

[0017] 2. The magnet and coil are arranged in the cover at intervals, so that no mechanical friction occurs during the driving of the solenoid valve, thereby completely solving the wear and noise problems of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of a solenoid valve in the prior art;

[0019] Figure 2 This is a magnetic flux line detection diagram of the coil in the working state in the prior art;

[0020] Figure 3 This is a magnetic flux line detection diagram of the coil in the working state of the present invention;

[0021] Figure 4 This is a structural diagram of a new type of solenoid valve in the first embodiment;

[0022] Figure 5 This is a cross-sectional view of a novel solenoid valve in the first embodiment;

[0023] Figure 6 This is a schematic diagram of an explosion of a novel solenoid valve in the first embodiment;

[0024] Figure 7 Schematic diagram of the structure of the sealing member and the electromagnetic structure in the present invention;

[0025] Figure 8 This is a flow diagram after the solenoid valve is opened in the first embodiment;

[0026] Figure 9 This is a structural diagram of a new type of solenoid valve in the second embodiment;

[0027] Figure 10 This is a schematic diagram of an explosion of a new type of solenoid valve in the second embodiment;

[0028] Figure 11 This is a cross-sectional view of a new type of solenoid valve in the second embodiment;

[0029] Figure 12 This is a flow diagram after the solenoid valve is opened in the second embodiment;

[0030] Figure 13 This is a flow diagram after the solenoid valve is closed in the second embodiment;

[0031] The reference numerals in the figure are: 1-valve body, 1A-upper cover, 1B-base, 101-inlet channel, 102-outlet channel, 103-valve cavity, 104-connecting channel, 2-seal, 201-seal ring, 202-valve core, 2021-head, 2022-tail, 203-cantilever, 3-cover, 4-magnet, 5-coil, 6-positioning ring, 7-cover, 8-gasket. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1:

[0034] In this embodiment, refer to Figure 3 - Figure 8 A new type of solenoid valve is specifically implemented, including a valve body 1 and a valve mechanism arranged in the valve body 1. The valve body 1 is provided with an inlet channel 101 and an outlet channel 102 for conducting with the outside. The inlet channel 101 and the outlet channel 102 are connected by a valve cavity 103. The valve mechanism includes a seal 2 for isolating the valve cavity 103 and an electromagnetic structure for driving the seal 2 to move. The electromagnetic structure includes a cover 3, a magnet 4 and a coil 5. The magnet 4 and the coil 5 are installed at intervals in the cover 3, and the coil 5 surrounds the outside of the magnet 4. The seal 2 is installed on the coil 5.

[0035] In this embodiment, the valve body 1 is composed of an upper cover 1A and a base 1B. The base 1B is provided with a positioning pin that cooperates with the upper cover 1A.

[0036] Furthermore, the sealing member 2 is composed of a sealing ring 201 and a valve core 202 for isolating the valve cavity 103. The valve core 202 is integrally formed with the sealing ring 201 via a plurality of cantilevers 203. During the actuation of the solenoid valve, the plurality of cantilevers 203 fix and restrict the valve core 202 in the middle of the valve body 1, so that the valve core 202 can isolate the valve cavity 103, forming a switching action. The valve core 202 is connected to the coil 5 via the cover 7, so that the coil 5 can also be restricted and suspended in a central position between the magnet 4 and the cover 3, ensuring that the coil 5 can maintain a distance from the magnet 4 and the cover 3 during movement, avoiding contact friction between the coil 5 and the magnet 4 or the cover 3, and completely solving the wear and noise problems of the solenoid valve. At the same time, the low-resistance structure of the valve core 202 can significantly reduce the power of the electromagnetic structure, effectively reducing heat generation and energy consumption.

[0037] Furthermore, a positioning ring 6 is provided between the upper cover 1A and the base 1B. When the valve core 202 is driven up and down by the electromagnetic structure, the arrangement of the sealing ring 201 embedded in the positioning ring 6 can effectively prevent the sealing ring 201 from being offset, thereby ensuring the sealing effect of the valve body 1. The upper and lower ends of the sealing ring 201 are respectively provided with protrusions that fit tightly with the upper cover 1A and the base 1B, which are used to ensure the sealing of the valve body 1.

[0038] like Figure 8 As shown, the outlet channel 102 passes through the housing 3 and the magnet 4 and connects to the valve cavity 103. When the solenoid valve is opened, the medium entering through the inlet channel 101 will sequentially pass through both sides of the coil 5 and finally be discharged from the outlet channel 102 in the middle of the magnet 4. As the medium passes through the magnet 4 and coil 5, it can carry away the heat generated by them. This active heat dissipation method can quickly dissipate heat from the electromagnetic structure, thereby ensuring the long-term stability of the solenoid valve.

[0039] The solenoid valve in this embodiment is generally used in gas circuit systems. If it is used in oil or liquid circuit systems, the electromagnetic structure needs to be processed accordingly (such as encapsulation process, metal surface post-processing, etc.) to ensure that the electromagnetic structure is not affected by the corrosion of the medium.

[0040] Furthermore, a sound-absorbing foam (not shown) for absorbing noise is installed in the outlet channel 102. The cover 3 and the gasket 8 are preferably made of soft magnetic material, and the seal 2 is integrally formed of silicone or other elastic materials.

[0041] like Figure 2 As shown, it shows the distribution of magnetic flux lines of the existing traditional solenoid valve coil 5 when it is working. Due to the lack of a protective structure, the coil 5 has serious magnetic leakage, low magnetic field utilization, and high power consumption. In addition, when multiple valve bodies are used in combination, the magnetic fields they generate are prone to interfere with each other, affecting the normal operation of the solenoid valve.

[0042] like Figure 3As shown, it shows the distribution of magnetic flux lines when the coil 5 of the present invention is working. The electromagnetic driving force of the coil 5 can be calculated according to the formula of Ampere force, that is, F=BIL (F is the electromagnetic driving force, B represents the magnetic induction intensity, I represents the current intensity passing through the coil 5, and L represents the length of the coil 5 in the magnetic field). When the magnet 4 and the coil 5 of the same specifications are used, the more magnetic flux lines of the magnet 4 concentrated on the coil 5, the greater the electromagnetic driving force of the coil 5. Therefore, the present invention embeds the magnet 4 and the coil 5 in the cover 3, and provides a gasket 8 at the upper end of the magnet 4, thereby confining the magnetic flux lines of the magnet 4 in the gap between the cover 3 and the magnet 4, so that the magnetic flux lines of the magnet 4 can be concentrated on the coil 5, greatly reducing the leakage magnetic phenomenon, improving the magnetic field utilization rate of the coil 5, reducing the number of turns of the coil 5, reducing power consumption, and effectively solving the heating problem of the solenoid valve. At the same time, the cover 3 can effectively isolate the external magnetic field, avoid interference with the internal electromagnetic structure, and ensure the stability of the operation of the solenoid valve.

[0043] Example 2:

[0044] like Figure 9-13 As shown, a connecting channel 104 communicating with the outside is provided on one side of the valve body 1, and the connecting channel 104 is connected to the valve cavity 103. The upper and lower ends of the valve core 202 are respectively provided with a head 2021 and a tail 2022, which are used to separate the valve cavity 103 and the outlet channel 102 respectively.

[0045] When the solenoid valve is powered off, the tail portion 2022 of the valve core 202 blocks the connection between the outlet channel 102 and the valve cavity 103. At this point, the inlet channel 101 is connected to the connecting channel 104, and the medium is discharged from the inlet channel 101, the valve cavity 103, and the connecting channel 104 in sequence. When the solenoid valve is powered on, the valve core 202 is driven upward, and the head portion 2021 of the valve core 202 blocks the connection between the valve cavity 103 and the inlet channel 101. At this point, the outlet channel 102 is connected to the connecting channel 104, and the medium is discharged from the connecting channel 104, the valve cavity 103, and the outlet channel 102 in sequence. In actual applications, the outlet channel 102 of this embodiment primarily serves to relieve pressure.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are all within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A novel solenoid valve, comprising a valve body (1) and a valve mechanism disposed in the valve body (1), wherein the valve body (1) is provided with an inlet channel (101) and an outlet channel (102) for communicating with the outside, wherein the inlet channel (101) and the outlet channel (102) are connected via a valve cavity (103), and wherein: The valve mechanism includes a sealing member (2) for isolating the valve cavity (103) and an electromagnetic structure for driving the sealing member (2) to move, wherein the electromagnetic structure includes a cover (3), a magnet (4) and a coil (5), wherein the magnet (4) and the coil (5) are installed in the cover (3) at intervals; the valve body (1) is composed of an upper cover (1A) and a base (1B); the sealing member (2) is composed of a sealing ring (201) and a valve core (202) for isolating the valve cavity (103), wherein the sealing ring (201) surrounds the upper cover (1A) and the base (1B); the valve core (202) is connected to the sealing ring (201) through a plurality of cantilevers (203), and the valve core (202) is connected to the coil (5) through a cover (7).

2. A new type of solenoid valve according to claim 1, characterized in that: A positioning ring (6) is provided between the upper cover (1A) and the base (1B), and the sealing ring (201) is embedded in the positioning ring (6).

3. A new type of solenoid valve according to claim 1 or 2, characterized in that: The sealing ring (201) is provided with protrusions at both the upper and lower ends.

4. The novel solenoid valve according to claim 1, characterized in that: The outlet channel (102) passes through the cover (3) and the magnet (4) to be connected to the valve cavity (103); the upper and lower ends of the valve core (202) are respectively provided with a head (2021) and a tail (2022); the head (2021) and the tail (2022) are respectively used to separate the valve cavity (103) and the outlet channel (102).

5. A new type of solenoid valve according to claim 1 or 4, characterized in that: A connecting channel (104) communicating with the outside is provided on one side of the valve body (1), and the connecting channel (104) is connected to the valve cavity (103).

6. A new type of solenoid valve according to claim 1 or 4, characterized in that: Sound-absorbing foam is installed in the outlet channel (102).

7. A new type of solenoid valve according to claim 1 or 4, characterized in that: A gasket (8) is provided at the upper end of the magnet (4).

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