Integrated noise reduction electromagnetic valve
By designing an integrated noise-reducing solenoid valve and utilizing a buffer pad and press-fit welding structure, the noise pollution problem of solenoid valves has been solved, achieving silent operation and stable operation, and improving the performance of solenoid valves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-03
AI Technical Summary
Existing solenoid valves in thermal management systems generate significant noise from both operation and media flow, leading to environmental noise pollution.
An integrated noise-reducing solenoid valve was designed. By introducing a buffer pad and a press-fitted welding structure into the valve body, noise generation is reduced. This includes a main sealing buffer pad, a moving iron core buffer pad, and a valve cover assembly buffer pad. Combined with the magnetic field control of the coil assembly to control the movement of the valve core, silent operation is achieved.
It effectively reduces noise pollution from the solenoid valve, ensures stable operation of the valve body under high pressure, avoids jerking, and improves the user experience.
Smart Images
Figure CN223964984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of valves, and in particular to an integrated noise-reducing solenoid valve. Background Technology
[0002] Various types of solenoid valves are frequently used in thermal management systems to control and regulate fluid media. Common solenoid valves include valve seats, valve cores, valve cover assemblies, return springs, moving iron cores, stationary iron cores, and coil assemblies.
[0003] Existing solenoid valves generate significant noise from both operation and media flow, causing noise pollution to the surrounding environment. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides an integrated noise reduction solenoid valve.
[0005] This utility model discloses an integrated noise-reducing solenoid valve, comprising a coil assembly, a valve cover assembly, a valve cover assembly buffer pad, a piston, a main sealing buffer pad, a valve core, and a valve seat. The valve seat has an inner cavity for the valve core to move within, and the valve core and piston are installed in the inner cavity. The main sealing buffer pad is installed at the lower end of the valve core. The valve cover assembly is located on the valve core, and the valve cover assembly buffer pad is installed at the lower end of the valve cover assembly. The valve cover assembly and the valve core cooperate to form a chamber. An air inlet is opened on the lower side of the valve seat, and an air outlet is opened at the bottom of the valve seat. The coil assembly is installed on the valve cover assembly. Under normal conditions, the valve body is in a normally closed state, with air entering through the air inlet of the valve seat and exiting through the air outlet. Under normal conditions, the air outlet is sealed at the lower end of the valve core. When it needs to be opened, the coil assembly is energized to generate a magnetic field, and the air pressure and elastic force force the valve core to move upward, separating the main sealing buffer pad at the lower end of the valve core from the air outlet.
[0006] Preferably, the coil assembly consists of a coil frame, coil windings, an injection-molded shell, and a coil yoke. The coil windings are encased in the coil frame, and the injection-molded shell covers both. The coil yoke is mounted on the outside of the injection-molded shell. A stationary iron core and a moving iron core are installed inside the coil frame. The upper end of the moving iron core is frustum-shaped, and the lower end of the stationary iron core has a matching frustum-shaped hole. A stationary iron core buffer pad is installed at the lower end of the stationary iron core, and a threaded hole is present at the upper end of the stationary iron core. The coil assembly is fixed to the stationary iron core using combination screws. A groove is provided at the lower end of the moving iron core, inside which a moving iron core buffer pad is installed. Under normal conditions, the valve body is in a normally closed state. Air enters through the inlet of the valve seat and exits through the outlet. In normal operation, valve core 7 at the lower end seals the vent. The moving iron core buffer pad at the lower end seals the upper port of the pressure relief hole. When it needs to be opened, the coil assembly is energized to generate a magnetic field, causing the moving iron core to move upward. The buffer pad at the lower end of the moving iron core separates from the upper port of the pressure relief hole. Air pressure and elasticity force the valve core to move upward, and the main sealing buffer pad at the lower end of the valve core separates from the vent. When not in use, the coil assembly is de-energized, the moving iron core moves downward, and the moving iron core buffer pad at the lower end of the moving iron core blocks the upper port of the pressure relief hole. At the same time, the moving iron core moves downward with the valve core, and the main sealing buffer pad at the lower end of the valve core blocks the vent.
[0007] Preferably, the valve cover assembly and the valve seat are connected by press-fit welding, and the valve cover assembly and the valve seat are an integral structure. The valve cover assembly and the valve seat are integrated by press-fit welding to avoid the problem of separate structures being prone to jerking during spring operation under high pressure and horizontal installation, which could cause the spring to fail to rise and be pressed under the valve core, resulting in valve body failure.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: the valve body is normally closed when it is in normal condition. Air enters through the inlet of the valve seat and exits through the outlet. Under normal conditions, the outlet is sealed at the lower end of the valve core. When it needs to be opened, the coil assembly is energized to generate a magnetic field. The air pressure and elastic force force the valve core to move upward, and the main sealing buffer pad at the lower end of the valve core separates from the outlet. Attached Figure Description
[0009] Figure 1 This is a cross-sectional schematic diagram of the present invention;
[0010] Figure 2 This is an isometric schematic diagram of this utility model.
[0011] The following are labels in the attached diagram: 1. Coil assembly; 2. Static iron core buffer pad; 3. Static iron core; 4. Moving iron core; 5. Valve cover assembly; 6. Piston; 7. Main sealing buffer pad; 8. Moving iron core buffer pad; 9. Valve cover assembly buffer pad; 10. Valve core; 11. Valve seat. Detailed Implementation
[0012] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0013] Example
[0014] like Figure 1 and Figure 2 As shown, the integrated noise-reducing solenoid valve of this utility model includes a coil assembly 1, a valve cover assembly 5, a valve cover assembly buffer pad 9, a piston 6, a main sealing buffer pad 7, a valve core 10, and a valve seat 11. The valve seat 11 has an inner cavity for the valve core 10 to move within, in which the valve core 10 and piston 6 are installed. The main sealing buffer pad 7 is installed at the lower end of the valve core 10. The valve cover assembly 5 is disposed on the valve core 10, and the valve cover assembly buffer pad 9 is installed at the lower end of the valve cover assembly 5. The valve cover assembly 5 and the valve core 10 cooperate to form a chamber. An air inlet is opened on the lower side of the valve seat 11, and an air outlet is opened at the bottom of the valve seat 11. The coil assembly 1 is installed on the valve cover assembly 5.
[0015] The coil assembly consists of a coil frame, coil windings, injection-molded shell, and coil yoke. The coil frame is covered with coil windings, which are encased in the injection-molded shell. The coil yoke is mounted on the outside of the injection-molded shell. The coil frame contains a stationary iron core 3 and a moving iron core 4. The upper end of the moving iron core 4 is shaped like a frustum, and the lower end of the stationary iron core 3 has a matching frustum hole. The lower end of the stationary iron core 3 is fitted with a stationary iron core buffer pad 2, and the upper end of the stationary iron core 3 has a threaded hole. The coil assembly 1 is fixed to the stationary iron core 3 by a combination screw. The lower end of the moving iron core 4 has a groove containing a moving iron core buffer pad 8.
[0016] The valve cover assembly 5 and the valve seat 11 are connected by pressure welding, and the valve cover assembly 5 and the valve seat 11 are an integral structure.
[0017] In this embodiment, the valve body is normally closed. Air enters through the inlet of the valve seat 11 and exits through the outlet. Under normal conditions, the lower end 7 of the valve core 10 seals the outlet, and the moving iron core buffer pad 8 at the lower end of the moving iron core 4 seals the upper port of the pressure relief hole. When it needs to be opened, the coil assembly 1 is energized to generate a magnetic field, causing the moving iron core 4 to move upward. The buffer pad at the lower end of the moving iron core 4 separates from the upper port of the pressure relief hole. The air pressure and elastic force force the valve core 10 to move upward. The main sealing buffer pad 7 at the lower end of the valve core 10 and the outlet... The air outlet is separated; when not in use, the coil assembly 1 is de-energized, the moving iron core 4 moves downward, the moving iron core buffer pad 8 at the lower end of the moving iron core 4 blocks the upper port of the pressure relief hole, and at the same time the moving iron core 4 moves downward with the valve core 10, the main sealing buffer pad 7 at the lower end of the valve core 10 blocks the air outlet. The valve cover assembly 5 and the valve seat 11 are press-fitted and welded into a single structure to avoid the separate structure being easily jerked during horizontal installation under high pressure, which may cause the spring to fail to move up and be pressed under the valve core, resulting in the valve body function failure.
[0018] The valve core 10 of the integrated noise reduction solenoid valve of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An integrated noise reducing solenoid valve comprising a coil assembly (1), a bonnet assembly (5), a bonnet assembly gasket (9), a piston (6), a primary seal gasket (7), a spool (10) and a valve seat (11), characterized in that, The valve seat (11) is provided with an inner cavity for the movement of the valve core (10), the inner cavity is provided with the valve core (10) and the piston (6), the lower end of the valve core (10) is provided with the main sealing buffer pad (7), the valve cover assembly (5) is arranged on the valve core (10), the lower end of the valve cover assembly (5) is provided with the valve cover assembly buffer pad (9), the valve cover assembly (5) and the valve core (10) cooperate to form a cavity, the lower end of the valve seat (11) is provided with an air inlet, the bottom of the valve seat (11) is provided with an air outlet, and the valve cover assembly (5) is provided with the coil assembly (1).
2. The integrated noise reducing solenoid valve of claim 1, wherein, The coil assembly is composed of a coil framework, a coil winding, an injection molding shell and a coil yoke, the coil framework is provided with the coil winding, the two are wrapped by the injection molding shell, the coil yoke is arranged outside the injection molding shell, the coil framework is internally provided with the static iron core (3) and the dynamic iron core (4), the upper end of the dynamic iron core (4) is in the shape of a circular truncated cone, the lower end of the static iron core (3) is provided with a circular truncated cone hole matched with the dynamic iron core (4), the lower end of the static iron core (3) is provided with the static iron core buffer pad (2), the upper end of the static iron core (3) is provided with a threaded hole, the coil assembly (1) and the static iron core (3) are fixed by a combination screw, and the lower end of the dynamic iron core (4) is provided with a recess internally provided with the dynamic iron core buffer pad (8).
3. The integrated noise reducing solenoid valve of claim 1, wherein, The valve cover assembly (5) and the valve seat (11) are connected in a press fitting and welding mode, and the valve cover assembly (5) and the valve seat (11) are in an integrated structure.