Iron core assembly and electromagnetic valve
By setting grooves and stress conduction structures in the installation groove of the iron core, the problem of tearing and falling off between the iron core and the elastic seal is solved, and the stability of the iron core assembly and the reliability of the solenoid valve are achieved.
Patent Information
- Application Number
- CN202423078871.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The existing matching structure of the iron core and the elastic seal easily causes the elastic seal to tear and fall off, affecting the stability and reliability of products such as solenoid valves.
An installation groove is set on the end face of the iron core, and a groove and a stress conduction structure are provided on the inner wall. The elastic seal is embedded in the installation groove and fills the groove. The stress is dispersed through the stress conduction structure to avoid stress concentration.
A stable connection between the iron core and the elastic seal is achieved to prevent tearing and falling off, ensuring the stability and reliability of the iron core assembly, thereby improving the stability and reliability of the solenoid valve.
Smart Images
Figure CN223434843U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of iron cores, in particular to an iron core component and a solenoid valve. Background Art
[0002] Elastic seals are provided at the ends of the iron cores of products such as solenoid valves to achieve sealing with mating components.
[0003] The current structure for the iron core and elastic seal is a groove formed at the end of the iron core, with the elastic seal positioned within the groove by means of clipping, gluing, or other methods. Durability tests have shown that elastic seals are prone to tearing and falling out of the groove after repeated compression, affecting the proper operation of products such as solenoid valves.
[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content
[0005] The utility model provides an iron core assembly and a solenoid valve, which are used to achieve stable cooperation between the iron core and the elastic seal, avoid problems such as tearing and falling off of the elastic seal during use, ensure the stability and reliability of the iron core assembly, and further ensure the stability and reliability of products such as the solenoid valve used by the iron core assembly.
[0006] According to one aspect of the present invention, there is provided an iron core assembly, comprising an iron core and an elastic seal, wherein: an end face of the iron core is provided with a mounting groove, and the elastic seal is embedded in the mounting groove; an inner wall of the mounting groove is provided with at least one groove, and the elastic seal fills the groove; a stress conduction structure is provided at the starting portion of the mounting groove, and the elastic seal is in contact with the stress conduction structure.
[0007] In some embodiments, the groove is connected to the inner wall of the mounting groove by a rounded transition, and / or the stress conduction structure is connected to the inner wall of the mounting groove by a rounded transition.
[0008] In some embodiments, the mounting groove is formed as a groove with one end open, the stress conduction structure is provided at the opening of the mounting groove, and the stress conduction structure is formed as an inclined opening.
[0009] In some embodiments, the angle between the inclined opening and the central axis of the core is less than or equal to 45°.
[0010] In some embodiments, the stress-transmitting structure extends along the central axis of the core by no less than 1 mm.
[0011] In some embodiments, the groove is formed as an annular groove.
[0012] In some embodiments, the annular groove comprises two spaced apart rows.
[0013] In some embodiments, the groove has a depth of no less than 0.4mm.
[0014] In some embodiments, the elastic seal is a rubber piece, and the elastic seal is vulcanized in the mounting groove.
[0015] According to another aspect of the present application, an electromagnetic valve is provided, which is configured with the core assembly as described in any of the above embodiments; wherein the core is a spool of the electromagnetic valve, and the elastic seal is arranged on opposite end faces of the core, and the elastic seal is used for sealingly cooperating with a gas interface of the electromagnetic valve.
[0016] The present application has at least the following beneficial effects compared with the prior art:
[0017] The mounting groove of the core is used for integrally accommodating the elastic seal, at least one groove is arranged on the inner wall of the mounting groove, and the elastic seal is locked, the elastic seal is connected with the core stably by being embedded in the mounting groove and filling the groove, and the elastic seal is prevented from falling off. The starting position of the mounting groove is also provided with a stress transmission structure, and the elastic seal is attached to the stress transmission structure, so that a structure for transmitting and dispersing stress is formed at the starting cooperation position of the elastic seal and the core, so that the stress of the elastic seal after being pressed is transmitted and dispersed through the structure, and tearing of the elastic seal caused by stress concentration and excessive local stress is avoided.
[0018] Therefore, the core assembly provided by the present application integrally accommodates the elastic seal through the mounting groove of the core, locks the elastic seal through the at least one groove arranged on the inner wall of the mounting groove, and transmits and disperses the stress after being pressed through the cooperation of the stress transmission structure arranged at the starting position of the mounting groove and the elastic seal, so as to realize stable cooperation of the core and the elastic seal, avoid tearing and falling off of the elastic seal with use, ensure stability and reliability of the core assembly, and further ensure stability and reliability of the product to which the core assembly is applied.
[0019] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS
[0020] The drawings incorporated by reference in the specification illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application. It is apparent that the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0021] Figure 1 A partial cross-sectional structure schematic view of the iron core assembly in the embodiment of the present application is shown.
[0022] Figure 2 A cross-sectional structure schematic view of one end of the iron core assembly in the embodiment of the present application is shown. DETAILED DESCRIPTION
[0023] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein. Rather, these implementations are provided as example (ies) so that this disclosure will be thorough and complete, and will fully convey the scope of the example (ies) to those skilled in the art.
[0024] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application, and together with the description serve to explain the principles of the present application. In the drawings:
[0025] It should be noted that the embodiments of the present application and the features in different embodiments can be combined with each other without conflict.
[0026] Figure 1 A partial cross-sectional structure of the iron core assembly is shown, Figure 2 A cross-sectional structure of one end of the iron core assembly is shown, Figure 1 and Figure 2 As shown in the drawings, the iron core assembly provided by the embodiment of the present application comprises an iron core 10 and an elastic sealing member 20, wherein:
[0027] An installation groove 11 is arranged on the end face of the iron core 10, and the elastic sealing member 20 is embedded in the installation groove 11;
[0028] At least one groove 12 is arranged on the inner wall of the installation groove 11, and the elastic sealing member 20 fills the groove 12;
[0029] The starting part of the mounting groove 11 is provided with a stress transmission structure 13, and the elastic sealing element 20 is attached to the stress transmission structure 13.
[0030] The mounting groove 11 of the iron core 10 is used for integrally accommodating the elastic sealing element 20, and the inner wall of the mounting groove 11 is provided with at least one groove 12 for locking the elastic sealing element 20. The starting part of the mounting groove 11 is provided with a stress transmission structure 13, and the elastic sealing element 20 is attached to the stress transmission structure 13.
[0031] The starting part of the mounting groove 11 is provided with a stress transmission structure 13, and the elastic sealing element 20 is attached to the stress transmission structure 13. Figure 1 The stress transmission structure 13 can be formed as an open groove structure arranged at the starting part of the mounting groove 11.
[0032] The starting part of the mounting groove 11 is provided with a stress transmission structure 13, and the elastic sealing element 20 is attached to the stress transmission structure 13.
[0033] The iron core assembly provided by the utility model can integrally accommodate the elastic sealing element 20 through the mounting groove 11 of the iron core 10, lock the elastic sealing element 20 through the at least one groove 12 arranged on the inner wall of the mounting groove 11, and conduct and disperse the pressure stress through the cooperation of the stress transmission structure 13 arranged at the starting part of the mounting groove 11 and the elastic sealing element 20.
[0034] In the embodiment of the utility model, the iron core 10 can be formed into a column shape, or other suitable shape adapted to the applied product. The elastic sealing member 20 can be arranged at the end of the iron core 10, or arranged at the middle of the iron core 10, which is determined according to the requirement of the applied product. In addition, the elastic sealing member 20 can be arranged outside or inside the iron core 10, which is determined according to the requirement of the applied product. In one specific example, the iron core 10 is a cylindrical iron core, and the elastic sealing member 20 is arranged at the opposite two end faces of the iron core 10, and the two ends of the iron core assembly can be formed into the structure as shown in the figure, but not limited thereto. Figure 2 The stress conducting structure 13 can be arranged at the end of the installation groove 11, and the stress conducting structure 13 can be formed into a bevel opening.
[0035] In some embodiments, the groove 12 and the inner wall of the installation groove 11 are connected by a round corner transition, and / or the stress conducting structure 13 and the inner wall of the installation groove 11 are connected by a round corner transition.
[0036] Through the round corner transition, the sharp contact is avoided to impact the elastic sealing member 20 when the elastic sealing member 20 is pressed, which plays a buffering protection and auxiliary stress dispersion role, so that the elastic sealing member 20 is not easy to tear after being repeatedly extruded and deformed.
[0037] In some embodiments, the installation groove 11 is formed into a groove with one end opening, the stress conducting structure 13 is arranged at the opening of the installation groove 11, and the stress conducting structure 13 is formed into a bevel opening. The stress conducting structure 13 in the bevel opening style is convenient for processing, and the elastic sealing member 20 is convenient for close-fitting, so as to be able to conduct and disperse the stress when the elastic sealing member 20 is pressed. The bevel opening and the inner wall of the installation groove 11 can be connected by a round corner transition, so as to avoid the sharp contact to cause the elastic sealing member 20 to tear.
[0038] In other embodiments, the stress conducting structure 13 can also be formed into a circular arc opening and the like, which can also realize that the stress of the elastic sealing member 20 is uniformly distributed without stress concentration point after being pressed, and the stress is conducted to the rear end, so that the elastic sealing member 20 is not easy to tear after being repeatedly extruded and deformed.
[0039] In the case that the installation groove 11 is formed into a groove with one end opening, the shape of the bottom 11' of the installation groove 11 can be determined according to the design requirement, the processing convenience requirement and the like. For example, the bottom 11' of the installation groove 11 can be formed into a structure similar to a conical surface, so as to facilitate drilling processing, or facilitate casting demolding; wherein the taper of the conical surface is not too small, so as to avoid the elastic sealing member 20 from sliding out and the elastic sealing member 20 from being concentratedly stressed at the sharp end and the like.
[0040] The mounting groove 11 can also be formed into various types of grooves, such as a groove with both ends open, an annular groove, etc., depending on the matching relationship between the core 10 and the elastic seal 20 required by the product in which the core assembly is used. Regardless of the type of groove formed by the mounting groove 11, the solution of the utility model can be adopted. By designing the elastic seal 20 embedded in the mounting groove 11, filling at least one groove 12 provided on the inner wall of the mounting groove 11, and the stress conduction structure 13 provided at the starting portion of the mounting groove 11, a stable matching between the core 10 and the elastic seal 20 is achieved, while preventing the elastic seal 20 from tearing or falling off during use, thereby ensuring the stability and reliability of the core assembly and the product to which it is applied.
[0041] In some embodiments, the angle θ between the inclined opening and the central axis Z of the core 10 is less than or equal to 45°. In a preferred embodiment, the angle θ can be between 20° and 40°. If the angle θ is too small, the stress conduction and dispersion effect may be poor. If the angle θ is too large, most of the pressure on the elastic seal 20 will be concentrated on the inclined opening and cannot be effectively transmitted to the rear end, resulting in stress concentration at the inclined opening, bringing risks such as tearing of the elastic seal. Therefore, the angle θ is set to be less than or equal to 45°, such as 10°, 15°, 25°, 33°, 45°, etc.; preferably, the angle θ is between 20° and 40°, specifically 20°, 26°, 30°, 33°, 40°, etc., to achieve effective stress conduction and dispersion.
[0042] In some embodiments, the extension component H of the stress-transmitting structure 13 along the central axis Z of the core 10 is no less than 1 mm. This ensures that the stress-transmitting structure 13 is of a certain size, that is, that the contact area between the stress-transmitting structure 13 and the elastic seal 20 is sufficient, thereby ensuring the effective stress conduction and dispersion. In specific implementations, the extension component H can be 1 mm, 1.2 mm, 1.6 mm, 2 mm, etc.
[0043] In some embodiments, the groove 12 is formed as an annular groove, which can lock the elastic seal 20 evenly in the circumferential direction, thereby achieving a stable connection between the elastic seal 20 and the core 10 and preventing the elastic seal 20 from falling off.
[0044] In some embodiments, the groove 12 may also include a plurality of grooves spaced apart in the circumferential direction, for example, a plurality of grooves spaced apart evenly in the circumferential direction, which can also achieve better locking of the elastic seal 20 in the circumferential direction.
[0045] In some embodiments, the groove 12 includes two grooves spaced apart from each other. The elastic seal 20 is locked by two or more grooves 12 to ensure tight fit between the elastic seal 20 and the core 10 and prevent the elastic seal 20 from falling out.
[0046] In some embodiments, the groove 12 has a groove depth S of no less than 0.4 mm. The groove depth S refers to the depth of the groove 12, specifically the dimension of the groove 12 along the radial direction X of the core 10. This ensures that the groove 12 secures the elastic seal 20 and provides sufficient resistance to prevent the elastic seal 20 from dislodging when the elastic seal 20 is deformed under pressure. In specific implementations, the groove depth S can be 0.4 mm, 0.6 mm, 0.9 mm, 1 mm, and so on.
[0047] In some embodiments, the elastic seal 20 may be a rubber member. Rubber has excellent wear resistance and resilience, which can improve the performance of the core assembly. Depending on the design requirements of the product in which the core assembly is used, the elastic seal 20 may also be made of materials such as resin and polyurethane.
[0048] In some embodiments, the elastic seal 20 is vulcanized into the mounting groove 11 of the core 10. The vulcanization process can form a three-dimensional structure within the elastic seal 20, giving the elastic seal 20 high elasticity and tensile strength, thereby improving the operating performance of the core assembly. In a specific implementation, the stress conduction structure 13 at the beginning of the mounting groove 11 can be used as a vulcanization opening, into which a suitable material such as rubber is poured and vulcanized to form the core assembly structure, forming the elastic seal 20 embedded in the mounting groove 11, filling the groove 12 of the mounting groove 11 and conforming to the stress conduction structure 13.
[0049] An embodiment of the present invention also provides a solenoid valve, which is equipped with an iron core assembly described in any of the above embodiments; wherein the iron core 10 is the valve core of the solenoid valve, and the elastic seal 20 is arranged on the opposite end faces of the iron core 10, and the elastic seal 20 is used to seal with the gas interface of the solenoid valve.
[0050] The solenoid valve is equipped with the above-mentioned iron core assembly, and the elastic seal 20 is accommodated as a whole through the installation groove 11 of the iron core 10, and the elastic seal 20 is locked by at least one groove 12 on the inner wall of the installation groove 11. The compressive stress of the elastic seal 20 is transmitted and dispersed through the cooperation between the stress conduction structure 13 at the starting part of the installation groove 11 and the elastic seal 20, thereby achieving stable cooperation between the iron core 10 and the elastic seal 20 and avoiding problems such as tearing and falling off of the elastic seal 20, ensuring the stability and reliability of the iron core assembly, achieving the sealing cooperation between the iron core assembly and the gas interface on the valve seat of the solenoid valve, improving the sealing performance of the cooperation between the iron core assembly and the valve seat, and improving the stability and reliability of the solenoid valve.
[0051] The above is further detailed description of the utility model in combination with specific preferred embodiments, and cannot be deemed as limitation of the specific implementation of the utility model to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them shall be deemed as belonging to the protection scope of the utility model.
Claims
1. A core assembly comprising a core and an elastic seal, characterized in that: The end surface of the iron core is provided with a mounting groove, and the elastic sealing member is embedded in the mounting groove; The inner wall of the installation groove is provided with at least one groove, and the elastic sealing member fills the groove; A stress conduction structure is provided at the starting portion of the installation groove, and the elastic sealing member is fitted into the stress conduction structure.
2. The core assembly according to claim 1, wherein: The groove is connected to the inner wall of the mounting groove by a rounded transition, and / or the stress conduction structure is connected to the inner wall of the mounting groove by a rounded transition.
3. The core assembly according to claim 1, wherein: The mounting groove is formed as a groove with one end open, the stress conduction structure is arranged at the opening of the mounting groove, and the stress conduction structure is formed as an inclined opening.
4. The core assembly according to claim 3, wherein: The angle between the inclined opening and the central axis of the iron core is less than or equal to 45°.
5. The core assembly according to claim 1, wherein: The extension component of the stress conduction structure along the central axis of the iron core is not less than 1 mm.
6. The core assembly according to claim 1, wherein: The groove is formed as an annular groove.
7. The core assembly according to claim 6, wherein: The annular groove includes two grooves arranged at intervals.
8. The core assembly according to claim 1, wherein: The groove depth is not less than 0.4 mm.
9. The core assembly according to any one of claims 1 to 8, wherein: The elastic sealing member is a rubber member, and the elastic sealing member is vulcanized and formed in the installation groove.
10. A solenoid valve, characterized in that: The solenoid valve is provided with an iron core assembly as claimed in any one of claims 1 to 9; Wherein, the iron core is the valve core of the solenoid valve, the elastic sealing member is arranged on the opposite end surfaces of the iron core, and the elastic sealing member is used to seal and cooperate with the gas interface of the solenoid valve.