Reed type magnetic isolation piece, relay magnetic circuit structure and relay
By designing reed-type magnetic separator in polarization relay, using the combination of magnetic separator and reed, the problem of difficulty in releasing the armature when it is broken is solved, the release ability and contact smoothness are improved, and the phenomenon of lag is solved .
Patent Information
- Application Number
- CN202411686480.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-01-10
AI Technical Summary
There are often difficulties in releasing the polarization relay when the armature is often broken from the yoke, especially when the contact break point is easily stuck, which is difficult to effectively solve the problem of existing technology.
Design a reed-type magnetic separator. Through the combination of the magnetic separator and the tongue reed, the magnetic separator is used to generate a magnetic separator between the relay armature and the normally open side yoke, thereby reducing the suction force in the suction state. And the reed provides a reaction force when disconnected, adjusting the release process of the armature.
It effectively improves the initial release ability of the armature at the suction and junction, and solves the possible lag problems during the release process, significantly improving the release ability of the armature.
Smart Images
Figure CN119297036A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of polarized relays, and in particular to a reed-type magnetic isolation component, a relay magnetic circuit structure and a relay. Background Art
[0002] The polarized relay is affected by the magnetic field of the magnetic steel (magnetic parts) in the magnetic circuit. When the armature is normally opened and disconnected from the yoke, it is often difficult to release the armature. In order to improve the problem of difficult armature release, the prior art often adds a magnetic isolation plate to the pole surface at the attraction point to reduce the suction force in the attraction state and improve the release ability of the armature. However, this only improves the release ability of the armature at the initial release point at the attraction point, and cannot solve the problem of difficult release of the armature during the release process. In particular, the armature often gets stuck at the contact breaking point, as shown in the attached figure. Figure 6 The reaction force curve of the ordinary structure intersects with the suction force curve at the contact breaking point and the 20% U release voltage. The suction force is greater than the reaction force, causing the armature to stagnate. The voltage needs to be further reduced before it can be released. Summary of the invention
[0003] In view of the shortcomings of the prior art, the present invention provides a tongue-reed type magnetic isolation member, which mainly solves the technical problem that the armature of the prior polarized relay may be difficult to release when the armature is normally opened and the yoke is disconnected.
[0004] To achieve the above object, the present invention is achieved through the following technical solutions: A tongue-spring type magnetic isolation component includes a magnetic isolation sheet body which is connected to the normally open side yoke of a relay magnetic circuit structure and corresponds to the normally open end pole surface of the relay armature. The magnetic isolation sheet body is also connected to a tongue-spring which is used to generate a reaction force for the disconnection action between the normally open end of the relay armature and the normally open side yoke.
[0005] Furthermore, the magnetic isolation sheet is configured to be welded and connected to the normally open side yoke.
[0006] Furthermore, the magnetic isolation sheet is fixedly connected to the normally open side yoke by spot welding.
[0007] Furthermore, two spot welding fixing positions are provided between the magnetic isolation sheet and the normally open side yoke, and the two spot welding fixing positions are configured to avoid the pole surface of the normally open end.
[0008] Furthermore, the tongue spring includes an extension section connected to the magnetic isolation plate, the extension section is arranged corresponding to the normally open end of the relay armature, and the extension section is configured to produce elastic deformation due to the downward pressure of the normally open end when the normally open end of the relay armature is attracted by the normally open side yoke, so as to provide a reaction force when the normally open end of the relay armature and the normally open side yoke perform a disconnection action.
[0009] Furthermore, a bent portion bent toward the bottom surface of the normally open end of the relay armature is provided at the free end of the extension section.
[0010] Furthermore, the bent portion is in an arc-shaped bend to improve the contact smoothness between the tongue reed and the normally open end of the relay armature.
[0011] Furthermore, the magnetic isolation sheet and the tongue spring are an integrally formed structure.
[0012] Based on the same inventive concept, the present invention also provides a relay magnetic circuit structure, comprising a normally open side yoke, a relay armature and any of the above-mentioned reed-type magnetic isolation components, wherein the two ends of the relay armature respectively form a normally open end and a normally closed end, and the length of the normally open end is greater than the length of the normally closed end, so that an installation space for making way for the reed is formed between the bottom of the normally open end and the normally open side yoke.
[0013] Based on the same inventive concept, the present invention also provides a relay, comprising any of the above-mentioned reed-type magnetic isolation components or relay magnetic circuit structures.
[0014] The above technical solution has the following advantages or beneficial effects:
[0015] In the tongue-spring type magnetic isolation component, relay magnetic circuit structure and relay described in the present invention, the magnetic isolation sheet can produce a magnetic isolation effect on the attracted contact portion between the normally open end of the relay armature and the normally open side yoke, effectively reducing the suction force between the normally open end and the normally open side yoke in the attracted state, which is beneficial to improve the release ability of the armature at the initial release point of the attracted state. At the same time, a tongue reed is also connected to the magnetic isolation sheet, and the tongue reed can generate a reaction force on the normally open end of the relay armature. In this way, the reaction force generated by the tongue reed can regulate the release of the normally open end when disconnected, thereby effectively improving the problem of possible release difficulty of the armature during the release process, and finally improving the problem of jamming at the contact disconnection point during the release process of the armature, thereby greatly improving the release ability of the armature. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 4 is a cross-sectional view of the structure of a relay according to an embodiment of the present invention.
[0017] Figure 2 Schematic diagram of the magnetic circuit structure of a relay according to an embodiment of the present invention.
[0018] Figure 3 It is a structural schematic diagram of the armature in the relay magnetic circuit structure of an embodiment of the present invention when it is in a disconnected state.
[0019] Figure 4 It is a structural schematic diagram of the armature in the relay magnetic circuit structure of an embodiment of the present invention when it is in an attracted state.
[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the tongue reed according to an embodiment of the present invention.
[0021] Figure 6 It is a suction and reaction force curve matching diagram of an embodiment of the present invention.
[0022] Description of labels:
[0023] 1. Magnetic isolation sheet, 2. Reed, 3. Normally open side yoke, 4. Relay armature, 21. Extension section, 22. Bending section, 41. Normally open end. DETAILED DESCRIPTION
[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0026] Please refer to the attached Figure 1 To Attachment Figure 5 An embodiment of the present invention provides a tongue-reed type magnetic isolation component, including a magnetic isolation sheet 1 which is connected to the normally open side yoke 3 of the relay magnetic circuit structure and corresponds to the pole surface of the normally open end 41 of the relay armature 4, and the magnetic isolation sheet 1 is also connected to a tongue-reed 2 which is used to generate a reaction force for the disconnection action between the normally open end 41 of the relay armature 4 and the normally open side yoke 3. It can be understood that, in the present embodiment, the magnetic isolation sheet 1 can produce a magnetic isolation effect on the attracted contact portion between the normally open end 41 of the relay armature 4 and the normally open side yoke 3, thereby effectively reducing the suction force between the normally open end 41 and the normally open side yoke 3 in the attracted state, thereby facilitating improving the release ability of the armature at the initial release point at the attracted position. At the same time, a tongue reed 2 is also connected to the magnetic isolation sheet 1, and a reaction force can be generated on the normally open end 41 of the relay armature 4 through the tongue reed 2. In this way, the reaction force generated by the tongue reed 2 can regulate the release of the normally open end 41 when disconnected, thereby effectively improving the problem of possible release difficulty of the armature during the release process, and finally achieving the improvement of the problem of jamming at the contact breaking point during the release process of the armature, thereby greatly improving the release ability of the armature.
[0027] Please refer to the attached Figure 1 To Attachment Figure 5In one preferred embodiment, the magnetic isolation sheet 1 is configured to be welded and connected to the normally open side yoke 3. Preferably, the magnetic isolation sheet 1 is fixedly connected to the normally open side yoke 3 by spot welding. Furthermore, two spot welding fixing positions are provided between the magnetic isolation sheet 1 and the normally open side yoke 3, and the two spot welding fixing positions are configured to avoid the pole surface of the normally open end 41. In this embodiment, the tongue-spring type magnetic isolation part and the normally open side yoke 3 can be quickly fixedly assembled together by spot welding, and the assembly efficiency is high, the connection is stable, and the spot welding fixing position is configured to avoid the pole surface area where the normally open end 41 and the normally open side yoke 3 are in conflict with each other, which effectively ensures the contact stability when the armature and the yoke are attracted. However, those skilled in the art should understand that in other embodiments, the magnetic isolation sheet 1 can also be fixedly assembled with the normally open side yoke 3 by other numbers of spot welding fixing positions. In addition, the magnetic isolation sheet 1 can also be fixedly connected with the normally open side yoke 3 by other existing conventional connection structures, and is not limited to the specific implementation methods disclosed in this embodiment.
[0028] Please refer to the attached Figure 1 To Attachment Figure 5 In one preferred embodiment, the tongue reed 2 includes an extension section 21 connected to the magnetic isolation sheet 1, and the extension section 21 is arranged corresponding to the normally open end 41 of the relay armature 4, and the extension section 21 is configured to produce elastic deformation under the downward pressure of the normally open end 41 when the normally open end 41 of the relay armature 4 is attracted with the normally open side yoke 3, so as to provide a reaction force when the normally open end 41 of the relay armature 4 and the normally open side yoke 3 are disconnected. Preferably, a bending portion 22 bent toward the bottom surface of the normally open end 41 of the relay armature 4 is provided at the free end of the extension section 21. The contact smoothness between the armature and the tongue reed 2 can be ensured by the bending portion 22. In addition, during the debugging stage, the local reaction force during the armature release process can also be adjusted by changing the connection bending angle between the extension section 21 and the magnetic isolation sheet 1, so as to better solve the problem of jamming at the position of contact disconnection during the armature release process.
[0029] Please refer to the attached Figure 3 To Attachment Figure 5 In one preferred embodiment, the bending portion 22 is in an arc shape to improve the contact smoothness between the tongue reed 2 and the normally open end 41 of the relay armature 4.
[0030] Please refer to the attached Figure 5 In one preferred embodiment, the magnetic isolation sheet 1 and the tongue reed 2 are an integrally formed structure.
[0031] Please refer to the attached Figure 1 To Attachment Figure 5One embodiment of the present invention further provides a relay magnetic circuit structure, comprising a normally open side yoke 3, a relay armature 4 and a tongue-reed type magnetic isolation member of any of the above embodiments, wherein the two ends of the relay armature 4 respectively form a normally open end 41 and a normally closed end, and the length of the normally open end 41 is greater than the length of the normally closed end, so that an installation space for making way for the tongue reed 2 is formed between the bottom of the normally open end 41 and the normally open side yoke 3. It can be understood that in this embodiment, it is precisely because the normally open end 41 of the relay armature 4 is designed to be longer than the normally closed end that an installation space for the tongue reed 2 to extend is formed between the bottom of the normally open end 41 and the normally open side yoke 3, so that it is possible to use the tongue reed 2 to provide a reaction force for the normally open end 41 of the relay armature 4.
[0032] An embodiment of the present invention further provides a relay magnetic circuit structure, comprising the reed-type magnetic isolation member or the relay magnetic circuit structure of any of the above embodiments.
[0033] As described above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements do not deviate the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
Claims
1. A reed-type magnetic isolation member, comprising a magnetic isolation sheet (1) for connecting to a normally open side yoke (3) of a relay magnetic circuit structure and corresponding to a normally open end (41) pole surface of a relay armature (4), characterized in that: The magnetic isolation sheet body (1) is also connected to a tongue reed (2) for generating a reaction force for the disconnection action between the normally open end (41) of the relay armature (4) and the normally open side yoke (3).
2. The reed type magnetic isolation member according to claim 1, characterized in that: The magnetic isolation sheet body (1) is configured to be welded and connected to the normally open side yoke (3).
3. The reed type magnetic isolation member according to claim 2, characterized in that: The magnetic isolation sheet body (1) is fixedly connected to the normally open side yoke iron (3) by spot welding.
4. The reed type magnetic isolation member according to claim 3, characterized in that: Two spot welding fixing positions are provided between the magnetic isolation sheet body (1) and the normally open side yoke iron (3), and the two spot welding fixing positions are configured to avoid the pole surface of the normally open end (41).
5. The reed type magnetic isolation member according to claim 1, characterized in that: The tongue reed (2) comprises an extension section (21) connected to the magnetic isolation sheet (1); the extension section (21) is arranged corresponding to the normally open end (41) of the relay armature (4); and the extension section (21) is configured to produce elastic deformation under the downward pressure of the normally open end (41) when the normally open end (41) of the relay armature (4) and the normally open side yoke (3) are attracted, so as to provide a reaction force when the normally open end (41) of the relay armature (4) and the normally open side yoke (3) are disconnected.
6. The reed type magnetic isolation member according to claim 5, characterized in that: A bent portion (22) is provided at the free end of the extension section (21) and is bent toward the bottom surface of the normally open end (41) of the relay armature (4).
7. The reed type magnetic isolation member according to claim 6, characterized in that: The bent portion (22) is in an arc-shaped bend to improve the contact smoothness between the tongue reed (2) and the normally open end (41) of the relay armature (4).
8. The reed-type magnetic isolation member according to any one of claims 1 to 7, characterized in that: The magnetic isolation sheet (1) and the tongue reed (2) are an integrally formed structure.
9. A relay magnetic circuit structure, characterized in that: It comprises a normally open side yoke (3), a relay armature (4) and a reed-type magnetic isolation member as claimed in any one of claims 1 to 8, wherein two ends of the relay armature (4) respectively form a normally open end (41) and a normally closed end, and the length of the normally open end (41) is greater than that of the normally closed end, so that an installation space for making way for the reed (2) is formed between the bottom of the normally open end (41) and the normally open side yoke (3).
10. A relay, characterized in that: It comprises the reed-type magnetic isolation member as described in any one of claims 1 to 8 or the relay magnetic circuit structure as described in claim 9.