Electromagnetic valve assembly
By setting a sponge-material buffer portion and a rubber-material buffer washers in the solenoid valve assembly, combined with the reset assembly, the problem of movement noise of the solenoid valve moving core is solved, achieving low-cost and efficient noise reduction and improved device reliability.
Patent Information
- Application Number
- CN202422166283.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The existing solenoid valves generate noise during the movement of the moving iron core, and the existing noise reduction design is costly and has poor results.
A buffer portion is provided in the gap between the moving iron core and the sleeve. The buffer portion made of sponge expands or compresses when the moving iron core moves to buffer impact. Combined with a buffer washer and reset assembly made of rubber, including a reset rod and a spring, the smooth movement of the moving iron core and noise reduction are achieved.
Effectively reduce noise, improve device operation reliability, extend service life, and be low in cost.
Smart Images
Figure CN223178274U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solenoid valves, and more specifically to a solenoid valve assembly. Background Art
[0002] The solenoid valve is one of the essential components of automotive products, and its main function is to achieve the on-off function of pipelines. In the existing solenoid valve, a sealing member is generally provided on the moving iron core. The moving iron core is driven to move by a coil and a reset member, so that the sealing member can open or close the passage. Noise will be generated during the movement of the moving iron core, resulting in poor user experience. For this reason, some solenoid valves reduce noise through noise reduction design, but the existing noise reduction design has a high cost and poor noise reduction effect. Summary of the Utility Model
[0003] Aiming at the deficiencies and defects of the existing technology, a solenoid valve assembly with low cost and good noise reduction performance is provided.
[0004] A solenoid valve assembly includes:
[0005] A sleeve, with a movable iron core that can move back and forth inside the sleeve;
[0006] A static iron core, which is arranged at the tail end of the sleeve;
[0007] A coil assembly, which is arranged outside the sleeve;
[0008] A reset assembly, which includes a reset rod connected to the movable iron core;
[0009] When the coil assembly is energized, the movable iron core moves downward to the tail end to cooperate with the static iron core. When the coil assembly is de-energized, the reset rod drives the movable iron core to move upward to reset;
[0010] A buffer part, which is arranged in the gap between the front end of the movable iron core and the sleeve, and the buffer part can be compressed when the movable iron core is reset to buffer the impact of the movable iron core during reset.
[0011] After adopting the above structure, the solenoid valve assembly of the utility model has the following advantages compared with the existing technology: The buffer part arranged in the gap between the front end of the movable iron core and the sleeve can expand (absorb impact) when the movable iron core moves downward, and can be compressed after contacting the buffer part when the movable iron core moves upward. When the buffer part is compressed, it buffers the impact between the movable iron core and the sleeve, plays a buffering role, reduces noise, and improves the operation reliability of the device;
[0012] The buffer part is arranged in the gap, and there is no connection state between the buffer part and the movable iron core, so it will not move rapidly along with the movable iron core, and the buffer part has less wear and a long service life.
[0013] As an improvement of the present utility model, the buffer part is made of sponge material.
[0014] As an improvement of the present utility model, the buffer part is arranged with a clearance fit with the inner hole of the sleeve.
[0015] As an improvement of the present utility model, a groove is provided at the tail end of the moving iron core, and the static iron core is provided with a positioning part, and the positioning part is arranged with a clearance fit with the groove.
[0016] As an improvement of the present utility model, a buffer washer is provided on the front end face of the static iron core, and the buffer washer buffers the impact between the front end face of the static iron core and the tail end face of the moving iron core.
[0017] As an improvement of the present utility model, the buffer washer is made of rubber material.
[0018] As an improvement of the present utility model, the reset rod is inserted through the static iron core, and the front end of the reset rod passes through the static iron core and abuts against the tail end of the moving iron core.
[0019] As an improvement of the present utility model, the reset assembly further includes a spring connected to the reset rod. The reset rod moves downward with the moving iron core, and the spring is pre-tightened. When the coil assembly is powered off, the pre-tightening force drives the moving iron core to reset through the reset rod. Description of the Drawings
[0020] Figure 1 It is a schematic structural diagram when the moving iron core of the present utility model moves downward to cooperate with the static iron core.
[0021] Figure 2 It is a schematic structural diagram when the moving iron core of the present utility model moves upward to reset.
[0022] Figure 3 It is of the present utility model Figure 2 Enlarged schematic diagram of the structure at A in.
[0023] As shown in the figure: 1. Sleeve; 2. Moving iron core; 2.1. Groove; 3. Static iron core; 3.1. Positioning part; 4. Coil assembly; 5. Reset rod; 6. Buffer part; 7. Buffer washer; 8. Spring. Detailed Embodiment
[0024] The present utility model will be further described below in conjunction with the drawings and specific embodiments.
[0025] Please refer to Figures 1 - 3 As shown, a solenoid valve assembly includes:
[0026] A sleeve 1, and a movable iron core 2 that can move back and forth is arranged inside the sleeve 1;
[0027] The stationary iron core 3 is arranged at the tail end of the sleeve 1;
[0028] The coil assembly 4 is arranged outside the sleeve 1;
[0029] The reset assembly includes a reset rod 5 which is connected to the moving iron core 2;
[0030] When the coil assembly 4 is energized, the moving iron core 2 moves downward to the tail end to cooperate with the stationary iron core 3. When the coil assembly 4 is de-energized, the reset rod 5 drives the moving iron core 2 to move upward for reset;
[0031] The buffer part 6 is arranged in the gap between the front end of the moving iron core 2 and the sleeve 1, and the buffer part 6 can be compressed when the moving iron core 2 is reset to buffer the impact of the reset of the moving iron core 2.
[0032] The buffer part 6 arranged in the gap between the front end of the moving iron core 2 and the sleeve 1 can expand (absorb impact) when the moving iron core 2 moves downward. When the moving iron core 2 moves upward and contacts the buffer part 6, the buffer part 6 can be compressed. When the buffer part 6 is compressed, it buffers the impact between the moving iron core 2 and the sleeve 1, plays a buffering role, reduces noise, and improves the operation reliability of the device;
[0033] The buffer part 6 is arranged in the gap and has no connection with the moving iron core 2, so it will not move quickly along with the moving iron core 2, and the buffer part 6 has less wear and a long service life.
[0034] The buffer part 6 is made of sponge material. The buffer part 6 made of sponge material has the characteristics of low cost, good buffering effect, reliable operation and long service life.
[0035] The buffer part 6 is arranged with a clearance fit with the inner hole of the sleeve 1. Preferably, when the moving iron core 2 moves downward to the tail end to cooperate with the stationary iron core 3, the maximum gap is formed, and the buffer part 6 is filled in the maximum gap. The buffer part 6 is of an annular structure or a columnar structure; the outer wall of the buffer part 6 contacts the inner wall of the sleeve 1 to keep the buffer part 6 in the preset assembly position, making the operation reliability of the device high.
[0036] Please refer to Figures 2 - 3 As shown, a groove 2.1 is arranged at the tail end of the moving iron core 2, and a positioning part 3.1 is arranged on the stationary iron core 3. The positioning part 3.1 is arranged with a clearance fit with the groove 2.1.
[0037] The moving iron core 2 is of a cylindrical structure (matched with the inner hole of the sleeve 1), and the center line of the groove 2.1 coincides with the center line of the moving iron core 2 and the center line of the positioning part 3.1.
[0038] When the moving iron core 2 moves downward, the positioning portion 3.1 can enter the groove 2.1 first, playing a guiding role, so that the moving iron core 2 and the static iron core 3 can accurately obtain an effective cooperation state.
[0039] As an improvement of the present utility model, a buffer washer 7 is provided on the front end face of the static iron core 3, and the buffer washer 7 buffers the impact between the front end face of the static iron core 3 and the tail end face of the moving iron core 2. The buffer washer 7 plays a role in buffering the impact between the moving iron core 2 and the static iron core 3, further reducing noise and prolonging the service life;
[0040] Preferably, the buffer washer 7 is arranged on the front end face of the positioning portion 3.1 and contacts the bottom wall of the groove 2.1 to play a buffering role. After the above improvement, the buffer washer 7 is arranged on the front end face of the upwardly extending positioning portion 3.1, and can contact the bottom wall of the groove 2.1 first, with a reasonable structural layout and a stable buffering effect;
[0041] The buffer washer 7 and the front portion of the positioning portion 3.1 are adapted to be an annular structure, so that the contact area is large and the buffering effect is reliable.
[0042] As an improvement of the present utility model, the buffer washer 7 is made of rubber material. When the coil assembly 4 is energized, the moving torque of the moving iron core 2 is large. Therefore, the buffer washer 7 made of rubber material buffers the impact of the moving iron core 2 on the static iron core 3. The buffer washer 7 made of rubber material has the characteristics of impact resistance, good buffer and noise reduction performance, low cost and easy maintenance.
[0043] The reset rod 5 is inserted through the static iron core 3, and the front end of the reset rod 5 passes through the static iron core 3 and abuts against the tail end of the moving iron core 2. The static iron core 3 is provided with a hole body, and the center line of the hole body coincides with the center line of the static iron core 3. The reset rod 5 passes through the hole body and enters the sleeve 1. The front end of the reset rod 5 contacts the bottom end face of the groove 2.1 of the moving iron core 2. The reset rod 5 can be driven by a driving member to move upward, thereby driving the moving iron core 2 to reset.
[0044] The reset assembly further includes a spring 8 connected to the reset rod 5. The reset rod 5 moves downward along with the moving iron core 2, and the spring 8 is pre-tightened. When the coil assembly 4 is powered off, the pre-tightening force drives the moving iron core 2 to reset through the reset rod 5. The tail end of the spring 8 abuts, and the front end abuts against the bottom end of the reset rod 5. The spring 8 drives the front end of the reset rod 5 to keep contacting the bottom end face of the groove 2.1 of the moving iron core 2. When the moving iron core 2 moves downward, the spring 8 is pre-tightened. When the coil assembly 4 is powered off, the pre-tightening force drives the reset rod 5 to move upward and drives the moving iron core 2 to reset.
[0045] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as within the protection scope of the present utility model.
Claims
1. A solenoid valve assembly, characterized in that, Comprising: A sleeve (1), with a movable iron core (2) that can move back and forth arranged inside the sleeve (1); A stationary iron core (3), which is arranged at the tail end of the sleeve (1); A coil assembly (4), which is arranged outside the sleeve (1); A reset assembly, the reset assembly includes a reset rod (5), and the reset rod (5) is connected to the movable iron core (2); When the coil assembly (4) is energized, the movable iron core (2) moves downward to the tail end to cooperate with the stationary iron core (3). When the coil assembly (4) is de-energized, the reset rod (5) drives the movable iron core (2) to move upward for reset; A buffer part (6), which is arranged in the gap between the front end of the movable iron core (2) and the sleeve (1), and the buffer part (6) can be compressed when the movable iron core (2) is reset to buffer the impact of the reset of the movable iron core (2).
2. The solenoid valve assembly according to claim 1, wherein: The buffer part (6) is made of sponge material.
3. The solenoid valve assembly according to claim 2, characterized in that: The buffer part (6) is arranged with a clearance fit with the inner hole of the sleeve (1).
4. A solenoid valve assembly according to claim 1, characterized in that: A groove (2.1) is arranged at the tail end of the movable iron core (2), and a positioning part (3.1) is arranged on the stationary iron core (3). The positioning part (3.1) is arranged with a clearance fit with the groove (2.1).
5. The solenoid valve assembly according to claim 1, wherein: A buffer washer (7) is arranged on the front end face of the stationary iron core (3), and the buffer washer (7) buffers the impact between the front end face of the stationary iron core (3) and the tail end face of the movable iron core (2).
6. The solenoid valve assembly according to claim 5, characterized in that: The buffer washer (7) is made of rubber material.
7. A solenoid valve assembly according to claim 1, characterized in that: The reset rod (5) passes through the stationary iron core (3), and the front end of the reset rod (5) passes through the stationary iron core (3) and abuts against the tail end of the movable iron core (2).
8. The solenoid valve assembly according to claim 7, wherein: The reset assembly further includes a spring (8) connected to the reset rod (5). The reset rod (5) moves downward along with the movable iron core (2), and the spring (8) is pre-tightened. When the coil assembly (4) is de-energized, the pre-tightening force drives the movable iron core (2) to reset through the reset rod (5).