Electromagnetic valve
By welding the end cap to the housing and setting a buffer gasket between the end cap and the coil unit, the problems of high cost, high noise, and difficult vibration control of existing solenoid valves are solved, achieving low cost, high sealing performance, and stable operation.
Patent Information
- Application Number
- CN202520170716.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-25
AI Technical Summary
The existing connection method of solenoid valves results in high cost, difficulty in controlling noise and vibration, and inconvenience in production and manufacturing.
The end cap and the outer shell are connected by welding, and a buffer gasket is set between the end cap and the coil unit. The coil unit position is stabilized by the limiting structure. Combined with the buffer gasket made of rubber and the metal stamped outer shell and end cap, the production cost is reduced and the sealing performance and stability are improved.
It reduced production costs, noise and vibration, improved sealing performance and operational reliability of the device, and extended its service life.
Smart Images
Figure CN223595160U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electromagnetic valve, more exactly relates to a kind of electromagnetic valve. BACKGROUND
[0002] Electromagnetic valve is one of the indispensable components of automobile products, and its main function is to realize the on-off function of pipeline. The existing electromagnetic valve generally has a cylindrical structure shell, the coil unit is connected in the shell, and a limiting structure is arranged between the coil unit and the shell to limit the coil unit, to prevent its movement;
[0003] End caps are arranged at both ends of the shell for sealing the internal space, preventing foreign matter from entering,
[0004] The existing end cap is generally connected with the shell by screw thread, riveting or other methods, or the end cap and the shell are integrated. The above connection methods and structures result in high cost, are not conducive to production and manufacturing, and the noise and vibration during device operation cannot be well controlled. UTILITY MODEL CONTENT
[0005] In view of the deficiencies and defects of the prior art, a kind of electromagnetic valve with lower cost, easy to process and manufacture, and small noise and vibration is provided.
[0006] A kind of electromagnetic valve, comprising:
[0007] Shell, the shell has accommodating space in it;
[0008] Coil unit, the coil unit is arranged in accommodating space, and lower end is abutted on a limiting piece, and dynamic iron core is arranged on the inner side of coil unit, and dynamic iron core is in transmission connection with valve core;
[0009] End cap, the end cap is connected on the upper end of accommodating space by welding,
[0010] Buffer washer, the buffer washer is arranged between end cap and coil unit.
[0011] After the above structure, a kind of electromagnetic valve of the utility model, compared with prior art, has the following advantages: when coil unit is powered, dynamic iron core moves downward to cooperate with static iron core, and drives valve core to close working port, and medium cannot pass through working port to enter flow passage;
[0012] When coil unit is powered off, reset assembly drives valve core to move upward to open working port, and drives dynamic iron core to move upward, at this time, working port is communicated with flow passage, and medium can pass through.
[0013] After coil unit is placed in accommodating space, lower end is abutted on a limiting piece, and the downward movement of coil unit is limited;
[0014] The end cover is connected to the accommodating space by welding, preferably laser welding, which satisfies automatic processing, reduces production cost and processing difficulty, and improves production efficiency;
[0015] The buffer washer is arranged between the end cover and the coil unit, and can limit upward movement of the coil unit, so that the coil unit is prevented from moving up and down, the position of the coil unit is stable, and the device is stable and reliable in operation.
[0016] The buffer washer can seal, buffer and dampen, improve the sealing performance of the device, reduce noise, further improve operation reliability, and prolong service life.
[0017] As an improvement of the utility model, the shell is a cylindrical structure;
[0018] The end cover is a circular sheet structure, and the outer periphery of the end cover and the inner periphery of the accommodating space form a matching state.
[0019] As an improvement of the utility model, the end cover comprises an inner ring, the outer end of the inner ring is bent downward and then extends outward to form an outer ring,
[0020] The upper end surface of the coil unit is provided with a ring groove, the outer end bottom wall of the ring groove abuts against the bottom wall of the outer ring,
[0021] The top wall of the ring groove abuts against the bottom wall of the inner side position of the inner ring;
[0022] The bottom wall of the ring groove and the bottom wall of the inner ring form a limiting space, and the accommodating limiting space is used for limiting the buffer washer.
[0023] As an improvement of the utility model, the buffer washer is made of rubber material.
[0024] As an improvement of the utility model, the upper end surface of the buffer washer is further provided with annular flanges protruding outward, the annular flanges are two in number, and the two annular flanges are arranged at intervals from the inside to the outside.
[0025] As an improvement of the utility model, the limiting piece is a valve seat, the valve seat is assembled at the bottom of the accommodating space, and the upper end surface of the valve seat abuts against the bottom wall of the coil unit.
[0026] As an improvement of the utility model, the upper end of the coil unit is inwardly reduced to form a clamping groove, and the upper end of the accommodating space is inwardly folded to form a limiting part,
[0027] The bottom of the limiting part and the bottom wall of the clamping groove constitute a blocking cooperation.
[0028] As an improvement of the utility model, the shell and the end cover are respectively formed by stamping of metal. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 It is the sectional view structure schematic diagram of the utility model.
[0030] Figure 2 It is the end cover structure schematic diagram of the utility model. Figure 1 It is the structure enlarged schematic diagram of A place in the middle.
[0031] Figure 3 It is the end cover structure schematic diagram of the utility model.
[0032] Figure 4 It is the buffer washer structure schematic diagram of the utility model.
[0033] In the drawing: 1, shell; 1.1, accommodating space; 1.11, limiting portion; 2, coil unit; 2.1, coil framework; 2.2, coil; 2.3, annular groove; 2.4, clamping groove; 3, limiting member; 4, moving iron core; 5, end cover; 5.1, inner ring; 5.2, outer ring; 6, buffer washer; 6.1, annular flange; 7, limiting space; 8, static iron core; 9, guide rod; 10, working port; 11, flow channel; 12, valve core; 13, reset assembly. DETAILED DESCRIPTION
[0034] The utility model will be further described below in combination with the drawings and specific embodiments.
[0035] Please refer to Figures 1-4 The utility model discloses an electromagnetic valve, which comprises:
[0036] Shell 1, the shell 1 has accommodating space 1.1 in it;
[0037] Coil unit 2, the coil unit 2 is arranged in accommodating space 1.1, and the lower end is abutted on a limiting member 3, and the inner side of coil unit 2 is provided with moving iron core 4, and moving iron core 4 is drivingly connected with valve core 12;
[0038] End cover 5, the end cover 5 is connected on the upper end of accommodating space 1.1 by welding,
[0039] Buffer washer 6, the buffer washer 6 is arranged between end cover 5 and coil unit 2.
[0040] Coil unit 2 includes coil framework 2.1 and coil 2.2 arranged in annular groove on the outer side of coil framework 2.1;
[0041] The inner side of coil framework 2.1 is provided with sliding hole extending up and down,
[0042] When the coil 2.2 is powered, the moving iron core 4 moves downward to cooperate with the static iron core 8, and drives the valve core 12 to close the working port 10, so that the medium cannot pass through the working port 10 to enter the flow channel 11;
[0043] When the coil 2.2 is powered off, the reset assembly 13 (the spring arranged between the static iron core 8 and the moving iron core 4) drives the valve core 12 to move upward to open the working port 10, and drives the moving iron core 4 to move upward, at this time, the working port 10 is communicated with the flow channel 11, and the medium can pass through.
[0044] After the coil unit 2 is placed in the accommodating space 1.1, the lower end of the coil framework 2.1 is abutted against a limiting piece 3 to limit the downward movement of the coil unit 2;
[0045] After the winding of the coil framework 2.1 is completed, the coil unit 2 can be integrally plasticized, and the upper end of the coil framework 2.1 is further provided with a plug penetrating the end cover 5, and the plug is electrically connected with the coil 2.2;
[0046] The end cover 5 is connected with the accommodating space 1.1 by welding, preferably, the outer periphery of the end cover 5 and the accommodating space 1.1 are welded by laser welding, which satisfies automatic processing, reduces production cost and processing difficulty, and improves production efficiency;
[0047] The buffer washer 6 is arranged between the end cover 5 and the coil unit 2 to limit the upward movement of the coil unit 2, and the two limiting functions interact to effectively prevent the upward and downward movement of the coil unit 2, the position is stable, and the device runs stably and reliably.
[0048] The buffer washer 6 can seal, buffer and dampen, improve the sealing performance of the device, reduce noise, further improve the operation reliability, and prolong the service life.
[0049] As an improvement of the utility model, the shell 1 is a cylindrical structure;
[0050] The end cover 5 is a circular sheet structure, and the outer periphery of the end cover 5 and the inner periphery of the accommodating space 1.1 form a matched cooperation state.
[0051] After the above improvement, the shell 1 is a cylindrical structure, the accommodating space 1.1 inside and the coil unit 2 are also cylindrical structures,
[0052] After the coil unit 2 is placed in the accommodating space 1.1, the matching degree is better, the transverse and upward and downward shaking amplitudes are well controlled, the connection between the parts is stable, and the operation reliability is high;
[0053] The end cover 5 is a circular sheet structure, and the outer periphery of the end cover 5 and the inner periphery of the accommodating space 1.1 form a matched cooperation state.
[0054] As an improvement of the utility model, the end cover 5 comprises an inner ring 5.1, the outer end of the inner ring 5.1 is bent downward and extends outward to form an outer ring 5.2,
[0055] The upper end face of the coil unit 2 is provided with a ring groove 2.3, the outer end bottom wall of the ring groove 2.3 abuts against the bottom wall of the outer ring 5.2,
[0056] The groove top wall of the ring groove 2.3 abuts against the bottom wall of the inner ring 5.1 at the inner side position;
[0057] The bottom wall of the ring groove 2.3 and the bottom wall of the inner ring 5.1 form a limiting space 7, and the limiting space 7 is used for limiting the buffer washer 6.
[0058] After the above improvement, during assembly, the buffer washer 6 is first placed into the ring groove 2.3, further, the end cover 5 is assembled above the containing space 1.1, and the bottom wall of the inner ring 5.1 abuts against the upper end face of the buffer washer 6, the limiting space 7 formed can limit the buffer washer 6, prevent it from moving, and maintain stable sealing, buffering and damping effects.
[0059] As an improvement of the utility model, the buffer washer 6 is made of rubber material. The buffer washer 6 made of rubber material can elastically deform after being pressed on the lower end face of the end cover 5 and the upper end face of the coil unit 2, more tightly abut against the end face, and has the characteristics of good sealing performance and good buffer gap performance.
[0060] As an improvement of the utility model, the upper end face of the buffer washer 6 is further provided with annular flanges 6.1, the annular flanges 6.1 are two, and the two annular flanges 6.1 are arranged at intervals from inside to outside.
[0061] The two annular flanges 6.1 are arranged at intervals from inside to outside and abut against the bottom wall of the inner ring 5.1 of the end cover 5 to form a sealing structure, and a spaced space is formed between the two annular flanges 6.1, if foreign matters enter from the gap between the buffer washer 6 and the end cover 5, they need to pass through the two sealing structures, which can further improve the sealing performance of the device.
[0062] As an improvement of the utility model, the limiting member 3 is a valve seat, the valve seat is assembled at the bottom of the containing space 1.1, and the upper end face of the valve seat abuts against the bottom wall of the coil unit 2.
[0063] The static iron core 8 is arranged on the upper end face of the valve seat and extends upward, and the dynamic iron core 4 is arranged opposite to the static iron core 8 in position.
[0064] The working port 10 and the flow channel 11 are arranged on the valve seat, the valve core 12 is arranged at the upper end of the working port 10, the moving iron core 4 is arranged with the guide rod 9, the guide rod 9 passes through the static iron core 8 and the valve seat and is connected with the valve core 12;
[0065] The main component of the electromagnetic valve is used as the limiting piece 3, and no additional limiting structure is arranged, so that the electromagnetic valve has the characteristics of few components and low cost.
[0066] The inner edge of the housing 1 is formed by inward spinning at the bottom of the valve seat, so that the position of the valve seat is stable and reliable.
[0067] As an improvement of the utility model, the coil unit 2 is formed with a clamping groove 2.4 at the upper end, the accommodating space 1.1 is formed with a limiting part 1.11 at the upper end,
[0068] The bottom of the limiting part 1.11 and the bottom wall of the clamping groove 2.4 form a blocking cooperation.
[0069] After the improvement, the coil unit 2 is loaded from the bottom of the accommodating space 1.1 until the bottom wall of the clamping groove 2.4 abuts against the bottom of the limiting part 1.11, so that the coil unit 2 is loaded into the preset assembly position, the assembly is convenient, the limiting structure is increased, and the stability of the assembly of the coil unit 2 is improved.
[0070] As an improvement of the utility model, the housing 1 and the end cover 5 are respectively formed by stamping.
[0071] The two main components are manufactured by stamping, so that the cost of processing and forming is reduced, and the structure has the characteristics of high strength and long service life.
[0072] The above is only a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above-mentioned embodiments, and any technical solution belonging to the idea of the utility model belongs to the protection scope of the utility model. It should be pointed out that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the utility model can also be regarded as the protection scope of the utility model.
Claims
1. A solenoid valve, characterized in that, include: The outer casing (1) has an accommodating space (1.1) inside; Coil unit (2), the coil unit (2) is arranged in the accommodating space (1.1) and the lower end is abutted on a limiting member (3). A moving iron core (4) is arranged inside the coil unit (2) and is connected to the valve core (12) in a transmission manner. End cap (5), said end cap (5) is connected to the upper end of the accommodating space (1.1) by welding. A buffer washer (6) is placed between the end cap (5) and the coil unit (2).
2. The solenoid valve according to claim 1, characterized in that: The outer shell (1) has a cylindrical structure; The end cap (5) is a circular sheet structure, and the outer periphery of the end cap (5) and the inner periphery of the accommodating space (1.1) form a fitting state.
3. A solenoid valve according to claim 2, characterized in that: The end cap (5) includes an inner ring (5.1), the outer end of which is bent downwards and extends outwards to form an outer ring (5.2). The upper end face of the coil unit (2) is provided with an annular groove (2.3), and the bottom wall of the outer end of the annular groove (2.3) abuts against the bottom wall of the outer ring (5.2). The top wall of the annular groove (2.3) abuts against the bottom wall of the inner ring (5.1) at the inner side; A limiting space (7) is formed between the bottom wall of the annular groove (2.3) and the bottom wall of the inner ring (5.1), and the limiting space (7) limits and accommodates the buffer washer (6).
4. A solenoid valve according to claim 1, characterized in that: The buffer gasket (6) is made of rubber.
5. A solenoid valve according to claim 1, characterized in that: The upper end face of the buffer washer (6) is also provided with an annular flange (6.1), and there are two annular flanges (6.1), which are arranged at intervals from the inside to the outside.
6. A solenoid valve according to claim 1, characterized in that: The limiting member (3) is a valve seat, which is assembled at the bottom of the accommodating space (1.1), and the upper end face of the valve seat abuts against the bottom wall of the coil unit (2).
7. A solenoid valve according to claim 1, characterized in that: The upper end of the coil unit (2) is cut inward to form a slot (2.4), and the upper end of the accommodating space (1.1) is tapered inward to form a limiting part (1.11). The bottom of the limiting part (1.11) and the bottom wall of the slot (2.4) form a blocking fit.
8. A solenoid valve according to claim 1, characterized in that: The outer shell (1) and the end cap (5) are respectively formed by stamping metal.