Reed type magnetic isolation piece, relay magnetic circuit structure and relay

Abstract

The utility model discloses a reed type magnetism isolating member, a relay magnetic circuit structure and a relay, comprising a magnetism isolating sheet body which is connected with a normally open side yoke of the relay magnetic circuit structure and corresponds to a normally open end pole face of a relay armature. The magnetic isolation sheet body is also connected with a reed which is used for generating counter force on the breaking action of the normally-open end of the relay armature and the normally-open side yoke. According to the utility model, the magnetism isolating sheet body can generate a magnetism isolating effect, the attraction force between the normally-open end and the normally-open side yoke in an attraction state is effectively reduced, meanwhile, the reed is also connected to the magnetism isolating sheet body, and the reed can generate a counter-force effect on the normally-open end of the relay armature, so that the normally-open end of the relay armature can be prevented from being damaged. According to the utility model, the release of the normally open end during breaking can be adjusted through the reaction force generated by the reed, so that the problem of possible difficult release in the release process of the armature is effectively improved, the problem of jamming at the contact breaking point in the release process of the armature is finally improved, and the release capability of the armature is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polarized relay technical field, concretely relates to a tongue spring type magnetic isolation piece, relay magnetic circuit structure and relay. BACKGROUND

[0002] Polarized relay is influenced by the magnetic field of magnetic steel (magnetic piece) in the magnetic circuit, and the armature release difficulty problem often exists when the armature normally open end and yoke break, in order to improve the armature release difficulty problem, the prior art often increases the magnetic isolation sheet at the pole surface of the attraction place, to reduce the attraction under the attraction state, improve the release capacity of armature, but this is only to improve the release capacity of armature at the initial release point of the attraction place, and cannot solve the release difficulty problem of armature in the release process, especially the armature often appears the phenomenon of jamming at the contact breaking point position, as shown in the figure Figure 6 The counterforce curve of the ordinary structure in the middle appears the intersection with the attraction force curve under 20%U release voltage at the contact breaking point, the attraction force is greater than the counterforce, the armature appears stagnation, needs to continue to lower the voltage, can continue to release. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiency of prior art, the utility model provides a tongue spring type magnetic isolation piece, which mainly solves the technical problem that the armature release difficulty problem may exist when the armature normally open end and yoke break of the existing polarized relay.

[0004] To achieve the above object, the utility model is realized by the following technical scheme:

[0005] A tongue spring type magnetic isolation piece, including the magnetic isolation sheet body for being connected with the normally open side yoke of the relay magnetic circuit structure and corresponding to the normally open end pole surface of the relay armature, the magnetic isolation sheet body is further connected with the tongue spring for generating the counterforce of the breaking action of the normally open end of the relay armature and the normally open side yoke.

[0006] Further, the magnetic isolation sheet body is configured to be welded on the normally open side yoke.

[0007] Further, the magnetic isolation sheet body is fixedly connected with the normally open side yoke by spot welding.

[0008] Further, two spot welding fixed positions are arranged between the magnetic isolation sheet body and the normally open side yoke, and the two spot welding fixed positions are configured to avoid the pole surface of the normally open end.

[0009] Further, the tongue spring includes the extension section connected with the magnetic isolation sheet body, the extension section is arranged corresponding to the normally open end of the relay armature, and the extension section is configured to be elastically deformed under the depression of the normally open end when the normally open end of the relay armature and the normally open side yoke are attracted, so as to provide the counterforce when the breaking action of the normally open end of the relay armature and the normally open side yoke is performed.

[0010] Furthermore, a bent portion is provided at the free end of the extension section and is bent toward the bottom surface of the normally open end of the relay armature.

[0011] 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.

[0012] Furthermore, the magnetic isolation sheet and the tongue spring are an integrally formed structure.

[0013] Based on the same inventive concept, the utility model also provides a relay magnetic circuit structure, including a normally open side yoke, a relay armature and any of the above-mentioned reed-type magnetic isolation parts, 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.

[0014] 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.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] 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, thereby facilitating improvement of the release ability of the armature at the initial release point at the attracted position. At the same time, a tongue spring is also connected to the magnetic isolation sheet, through which a reaction force can be generated on the normally open end of the relay armature. In this way, the reaction force generated by the tongue spring can regulate the release of the normally open end at the time of disconnection, thereby effectively improving the problem of possible release difficulty of the armature during the release process, and ultimately achieving the goal of improving the problem of the armature getting stuck at the contact disconnection point during the release process, thereby greatly improving the release ability of the armature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural cross-sectional view of a relay according to an embodiment of the present utility model.

[0018] Figure 2 It is a schematic diagram of the relay magnetic circuit structure of an embodiment of the present utility model.

[0019] Figure 3 It is a structural schematic diagram of the armature in the relay magnetic circuit structure of an embodiment of the present utility model when it is in a disconnected state.

[0020] Figure 4 It is a structural schematic diagram of the armature in the relay magnetic circuit structure of an embodiment of the present utility model when it is in an attracted state.

[0021] Figure 5 is a three-dimensional structure schematic view of the reed of the embodiment of the utility model.

[0022] Figure 6 is the matching diagram of the suction force curve of the embodiment of the utility model.

[0023] Label explanation:

[0024] 1, the magnetic separation sheet body, 2, the reed, 3, the normally open side yoke, 4, the relay armature, 21, the extension section, 22, the bending part, 41, the normally open end. Specific implementation

[0025] The utility model is further described below in combination with the drawings and embodiments.

[0026] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0027] Please refer to the drawings Figure 1 to the drawings Figure 5 An embodiment of the utility model provides a reed type magnetic separation piece, which comprises a magnetic separation sheet body 1 for being connected with 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, and a reed 2 for generating a counterforce on the breaking action of the normally open end 41 of the relay armature 4 and the normally open side yoke 3 is further connected on the magnetic separation sheet body 1. It can be understood that in the embodiment, the magnetic separation sheet body 1 can generate a magnetic separation effect on the suction contact part between the normally open end 41 of the relay armature 4 and the normally open side yoke 3, effectively reduces the suction force between the normally open end 41 and the normally open side yoke 3 in the suction state, and further helps to improve the release capacity of the armature at the initial release point of the suction, at the same time, the reed 2 is further connected on the magnetic separation sheet body 1, the reed 2 can generate a counterforce effect on the normally open end 41 of the relay armature 4, in this way, the counterforce effect generated by the reed 2 can adjust the release of the normally open end 41 in the breaking, thereby effectively improving the possible release difficulty problem of the armature in the release process, finally, the problem of the armature in the release process is improved in the contact breaking point position, and the release capacity of the armature is greatly improved.

[0028] Please refer to the drawings Figure 1 to the drawings Figure 5In one preferred embodiment, the magnetic isolation sheet 1 is configured to be welded 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 component can be quickly fixedly assembled with the normally open side yoke 3 by spot welding, and the assembly efficiency is high and the connection is stable. In addition, 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 conflict with each other, which effectively ensures the contact stability of the armature and the yoke when they 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.

[0029] Please refer to the attached Figure 1 To the attached Figure 5 In one preferred embodiment, the tongue reed 2 includes an extension section 21 connected to the magnetic isolation plate 1. The extension section 21 is provided corresponding to the normally open end 41 of the relay armature 4. The extension section 21 is configured to elastically deform under the downward pressure of the normally open end 41 when the normally open end 41 of the relay armature 4 is attracted to the normally open side yoke 3, thereby providing 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 bend 22 is provided at the free end of the extension section 21, which is bent toward the bottom surface of the normally open end 41 of the relay armature 4. The bend 22 ensures smooth contact between the armature and the tongue reed 2. In addition, during the debugging stage, the local reaction force during the armature release process can be adjusted by changing the bending angle of the connection between the extension section 21 and the magnetic isolation plate 1, so as to better solve the problem of stuck at the position of contact disconnection during the armature release process.

[0030] Please refer to the attached Figure 3 To the attached Figure 5 In one preferred embodiment, the bending portion 22 is in an arc-shaped bending shape to improve the contact smoothness between the tongue reed 2 and the normally open end 41 of the relay armature 4.

[0031] Please refer to the attached Figure 5 In one preferred embodiment, the magnetic isolation plate 1 and the tongue reed 2 are an integrally formed structure.

[0032] Please refer to the attached Figure 1 To the attached Figure 5The utility model discloses a kind of relay magnetic circuit structure, including normally open side yoke 3, relay armature 4 and the tongue spring type magnetic separator of any one embodiment above, wherein, the both ends of relay armature 4 are formed normally open end 41 and normally closed end respectively, and the length of normally open end 41 is greater than the length of normally closed end, to make the bottom of normally open end 41 and normally open side yoke 3 form installation space for being located in tongue spring 2.

[0033] The utility model discloses a kind of relay magnetic circuit structure, including the tongue spring type magnetic separator or relay magnetic circuit structure of any one embodiment above.

[0034] The above, embodiment is only used to illustrate the technical scheme of the utility model, and is not limited thereto; although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of technical features therein; and these modifications or replacements do not make the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiments of the utility model, so all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

Claims

1. A reed-type magnetic isolation member, comprising a magnetic isolation plate (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 plate (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 plate (1) is configured to be welded 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 plate (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).

5. The reed-type magnetic isolation member according to claim 1, characterized in that: The tongue reed (2) includes an extension section (21) connected to the magnetic isolation plate (1). The extension section (21) is provided corresponding to the normally open end (41) of the relay armature (4). The extension section (21) is configured to generate 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) perform a disconnection action.

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 tongue-shaped magnetic isolation member as claimed in any one of claims 1 to 8, 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 that of the normally closed end, so that an installation space for making way for the tongue (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 according to any one of claims 1 to 8 or the relay magnetic circuit structure according to claim 9.

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