阅读说明：本技术 一种单永磁复合衔铁电磁机构 (Single permanent magnet composite armature electromagnetic mechanism ) 是由 梁慧敏 郭振国 刘桂林 魏子桐 马航宇 翟国富 于 2021-09-08 设计创作，主要内容包括：一种单永磁复合衔铁电磁机构,属于继电器技术领域。复合衔铁的中部与转轴连接；转轴以及复合衔铁设置在轭铁架的中部,轭铁架的相对内壁分别与对应的铁心的一端连接,两个铁心设置在转轴以及复合衔铁的两侧,复合衔铁的两端与复合衔铁配合设置；每个铁心另一端的外侧均套装有线圈骨架,并两个铁心设置在底板上,每个线圈骨架的外侧均缠绕有线圈,两个线圈串联设置。本发明有效提升了双稳态电磁机构的电磁效率,进一步降低了含永磁继电器的吸合电压与驱动功耗,提高永磁体的利用率,减小继电器体积与重量,可应用于含永磁继电器等多种电磁系统,并最终达到提高继电器灵敏度的用户需求。(A single permanent magnet composite armature electromagnetic mechanism belongs to the technical field of relays. The middle part of the composite armature is connected with the rotating shaft; the rotating shaft and the compound armature are arranged in the middle of the yoke iron frame, the opposite inner walls of the yoke iron frame are respectively connected with one end of the corresponding iron core, the two iron cores are arranged on the two sides of the rotating shaft and the compound armature, and the two ends of the compound armature are matched with the compound armature; the outside of every iron core other end all is equipped with coil skeleton to two iron cores set up on the bottom plate, and the outside of every coil skeleton all twines there is the coil, and two coils are established ties and are set up. The bistable electromagnetic mechanism effectively improves the electromagnetic efficiency of the bistable electromagnetic mechanism, further reduces the pull-in voltage and the driving power consumption of the relay containing the permanent magnet, improves the utilization rate of the permanent magnet, reduces the size and the weight of the relay, can be applied to various electromagnetic systems containing the permanent magnet relay and the like, and finally meets the user requirement of improving the sensitivity of the relay.)

1. The utility model provides a single compound armature electromagnetic mechanism of permanent magnetism which characterized in that: the magnetic field composite armature comprises a composite armature (1), a rotating shaft (2), an iron core (4), a coil (5), a coil framework (6), a bottom plate (11) and a yoke iron frame; the middle part of the composite armature iron (1) is connected with the rotating shaft (2); the rotating shaft (2) and the composite armature (1) are arranged in the middle of the yoke iron frame, the opposite inner walls of the yoke iron frame are respectively connected with one end of the corresponding iron core (4), the two iron cores (4) are arranged on two sides of the rotating shaft (2) and the composite armature (1), and two ends of the composite armature (1) are matched with the composite armature (1); the outer side of the other end of each iron core (4) is sleeved with a coil framework (6), the two iron cores (4) are arranged on the bottom plate (11), each coil (5) is wound on the outer side of each coil framework (6), and the two coils (5) are connected in series.

2. The single-magnet compound armature electromagnetic mechanism of claim 1, wherein: the yoke iron frame comprises a yoke iron (3) and a support piece (12); the two ends of the rotating shaft (2) are respectively connected with the middle parts of the corresponding support pieces (12), the yoke irons (3) which are oppositely arranged are arranged between the two support pieces (12), and the opposite surfaces of the yoke irons (3) are respectively connected with one ends of the corresponding iron cores (4).

3. The single-magnet compound armature electromagnetic mechanism of claim 2, wherein: the composite armature (1) comprises a middle permanent magnet (14), a left end magnetizer (15) and a right end magnetizer (16); the N pole of the middle permanent magnet (14) is connected with the left end magnetizer (15), the S pole of the middle permanent magnet (14) is connected with the right end magnetizer (16), and the middle of the middle permanent magnet (14) is connected with the rotating shaft (2); the left end magnetizer (15) and the right end magnetizer (16) of the composite armature (1) are respectively arranged between the pole faces of the corresponding sides of the two yokes (3).

Technical Field

The invention relates to a single permanent magnet composite armature electromagnetic mechanism, and belongs to the technical field of relays.

Background

The relay containing permanent magnet is widely applied to the fields of spaceflight, national defense and civil use due to the characteristics of small volume, light weight, high sensitivity and the like. The relay with permanent magnet adopts a bistable electromagnetic mechanism, the armature of the electromagnetic mechanism mostly adopts a rotary structure, the holding force is provided by a permanent magnet loop, the armature drives a contact spring system to realize the switching of signals, the yoke takes the limit of the armature, and the whole electromagnetic mechanism which takes the armature, the permanent magnet and the yoke as the center and is formed by connecting other parts such as a coil, an iron core and the like directly determines the performance of the whole relay with the permanent magnet.

Along with the development of the aerospace technology, users put forward the requirements of further reducing the pull-in voltage and improving the sensitivity of the relay for the relay containing permanent magnet, and the bistable electromagnetic mechanism in the existing product cannot improve the electromagnetic efficiency because of the limitation of the magnetic resistance of a coil electromagnetic loop, so the existing bistable electromagnetic mechanism cannot meet the requirements.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a single permanent magnet compound armature electromagnetic mechanism.

The invention adopts the following technical scheme: a single permanent magnet compound armature electromagnetic mechanism comprises a compound armature, a rotating shaft, an iron core, a coil framework, a bottom plate and a yoke iron frame; the middle part of the composite armature is connected with the rotating shaft; the rotating shaft and the compound armature are arranged in the middle of the yoke iron frame, the opposite inner walls of the yoke iron frame are respectively connected with one end of the corresponding iron core, the two iron cores are arranged on two sides of the rotating shaft and the compound armature, and two ends of the compound armature are matched with the compound armature; the outer side of the other end of each iron core is sleeved with a coil framework, the two iron cores are arranged on the bottom plate, the outer side of each coil framework is wound with coils, and the two coils are connected in series.

Compared with the prior art, the invention has the beneficial effects that:

the invention uses the composite armature part to replace a pure permanent magnet armature, and the composite armature structure is adopted, so that the magnetic resistance of a coil electromagnetic loop is obviously reduced, thereby effectively improving the electromagnetic efficiency of the bistable electromagnetic mechanism, further reducing the actuation voltage and the driving power consumption of the relay containing the permanent magnet, improving the utilization rate of the permanent magnet, reducing the volume and the weight of the relay, being applicable to various electromagnetic systems containing the permanent magnet relay and the like, and finally achieving the user requirement of improving the sensitivity of the relay.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a compound armature;

fig. 3 is a schematic view of the release position of the basic magnetic structure of the present invention;

fig. 4 is a schematic diagram of the positive pulse at the release position of the basic magnetic structure of the present invention;

FIG. 5 is a schematic view of the basic magnetic structure of the present invention at the engaging position;

fig. 6 is a schematic diagram of the reverse pulse of the pull-in position of the basic magnetic circuit structure of the present invention.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

A single permanent magnet compound armature electromagnetic mechanism comprises a compound armature 1, a rotating shaft 2, an iron core 4, a coil 5, a coil framework 6, a bottom plate 11 and a yoke iron frame; the middle part of the composite armature 1 is connected with the rotating shaft 2; the rotating shaft 2 and the compound armature 1 are arranged in the middle of the yoke iron frame, the opposite inner walls of the yoke iron frame are respectively connected with one end of the corresponding iron core 4, the two iron cores 4 are arranged on two sides of the rotating shaft 2 and the compound armature 1, and two ends of the compound armature 1 are matched with the compound armature 1; the outer side of the other end of each iron core 4 is sleeved with a coil framework 6, the two iron cores 4 are arranged on the bottom plate 11, each coil 5 is wound on the outer side of each coil framework 6, and the two coils 5 are connected in series.

The yoke frame comprises a yoke 3 and a support 12; the two ends of the rotating shaft 2 are respectively connected with the middle parts of the corresponding support pieces 12, the yokes 3 which are oppositely arranged are arranged between the two support pieces 12, and the opposite surfaces of the two yokes 3 are respectively connected with one end of the corresponding iron core 4.

The compound armature 1 comprises a middle permanent magnet 14, a left end magnetizer 15 and a right end magnetizer 16; the magnetizing direction of the middle permanent magnet 14 is left-right magnetizing, the N pole of the middle permanent magnet 14 is connected with the left end magnetizer 15, the S pole of the middle permanent magnet 14 is connected with the right end magnetizer 16, and the middle of the middle permanent magnet 14 is connected with the rotating shaft 2; the left end magnetizer 15 and the right end magnetizer 16 of the compound armature 1 are respectively arranged between the pole faces of the corresponding sides of the two yokes 3.

The working principle of the invention is as follows:

referring to fig. 3, when the compound armature 1 is at the initial release position, the left end magnetizer 15 of the compound armature 1 contacts with the left pole face of the yoke 3 at the lower end, when the coil 5 is not energized, no electromagnetic flux passes through the loop, and the permanent magnetic flux forms a small air gap closed path to generate a counterclockwise attraction force to keep the compound armature 1 at the release position.

When the compound armature 1 is in a release state and the coil 5 is energized in a positive direction, the electromagnetic mechanism generates electromagnetic flux in a clockwise direction, as shown in fig. 4. The electromagnetic flux and the permanent magnetic flux are overlapped, so that the suction force at the working air gap is changed, the composite armature 1 is gradually increased by the clockwise suction moment, the anticlockwise suction moment is gradually reduced, when the clockwise suction moment is larger than the anticlockwise suction moment, the composite armature 1 rotates clockwise until the left end magnetizer 15 of the composite armature 1 contacts with the left pole face of the yoke 3 at the upper end, and the composite armature 1 is in a suction state.

As shown in fig. 5, when the compound armature 1 is in the initial attraction position, the left end magnetizer 15 of the compound armature 1 contacts with the left pole face of the yoke 3 at the upper end; when the coil 5 is not electrified, no electromagnetic flux passes through the loop, and the magnetic flux of the permanent magnetic circuit forms a small air gap closed path to generate clockwise attraction force distance so as to keep the compound armature 1 at the attraction position.

Referring to fig. 6, when the compound armature 1 is in an attraction state and the coil 5 is energized with a reverse pulse, the electromagnetic mechanism generates electromagnetic flux in a counterclockwise direction. The electromagnetic flux and the permanent magnetic flux are overlapped, so that the suction force at the working air gap is changed, the composite armature 1 is gradually reduced by the clockwise suction moment, the anticlockwise suction moment is gradually increased, when the anticlockwise suction moment is greater than the clockwise suction moment, the composite armature 1 rotates anticlockwise until the left end magnetizer 15 of the composite armature 1 is contacted with the left pole face of the yoke 3 at the lower end, and the composite armature 1 is in a release state.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.