CN218730686U

CN218730686U - Magnetic latching contactor

Info

Publication number: CN218730686U
Application number: CN202221871105.0U
Authority: CN
Inventors: 龚祚勇; 郑杰; 陈望戍; 高铨; 李强; 彭琼; 林浩
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2023-03-24
Anticipated expiration: 2032-07-12

Abstract

A magnetic latching contactor, comprising an electromagnetic system (a) and a contact system (b), wherein the contact system (b) can be switched on and off under the action of the electromagnetic system (a) so as to realize the on-off of the contactor, and is characterized in that: electromagnetic system (a) includes permanent magnet (1), a permanent magnet (1) side sets up with first yoke (2) laminating, and another side sets up with magnetic conduction board (3) laminating. The utility model discloses utilize the magnetism of permanent magnet to keep the principle, realized need not to last also can keep the purpose that the sound contact is in the closed state for the coil power supply when the major loop switch-on, effectively reduced the energy consumption when the major loop switch-on keeps.

Description

Magnetic latching contactor

Technical Field

The utility model belongs to the technical field of the contactor, specifically say so and relate to a magnetic latching contactor.

Background

The contactor is characterized in that a magnetic field is generated by current flowing through a coil, so that a contact is closed, and effective power transmission is realized. A conventional contactor generally includes an electromagnetic system, a contact system, an arc extinguishing system, a transmission mechanism, and a housing. The electromagnetic system generally comprises components such as a coil, a movable iron core, a static iron core, a magnetic yoke and the like. When the electromagnetic coil of the contactor is electrified, a strong magnetic field is generated, so that the static iron core generates electromagnetic attraction to attract the movable iron core and drive the contact to act, and the contact is closed; when the coil is powered off, the electromagnetic attraction disappears, the movable iron core is released under the action of the release spring, the contact is restored, and the contact is disconnected.

In the prior art, when a main loop is connected, a contactor needs to continuously supply power to a coil to keep a moving contact and a static contact in a closed state, so that excessive energy consumption can be caused, and especially energy waste can be caused in an application occasion with long power-on time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a magnetism keeps contactor to above-mentioned current contactor need last just can keep sound contact in the defect that the closed state caused the energy extravagant for the coil power supply when the major loop switch-on, utilizes the magnetism of permanent magnet to keep the principle, has realized need not to last also can keep sound contact in the purpose of closed state for the coil power supply when the major loop switch-on, has effectively reduced the energy consumption when the major loop switch-on keeps.

Technical scheme

In order to realize the technical purpose, the utility model provides a magnetism keeps contactor, it includes electromagnetic system and contact system, thereby contact system can put through and divide the break-make that realizes contactor under the electromagnetic system effect, its characterized in that: the electromagnetic system comprises a permanent magnet, one side face of the permanent magnet is attached to the first magnetic yoke, and the other side face of the permanent magnet is attached to the magnetic conduction plate.

Further, the permanent magnet is arranged in a manner of magnetizing up and down.

Furthermore, the whole body of the permanent magnet and the magnetic conduction plate which are attached together is attached to the first magnetic yoke through the iron core sleeve.

Furthermore, the whole body formed by attaching the permanent magnet and the magnetic conduction plate together is positioned in a step inner cavity in the iron core sleeve and is propped against the step of the step inner cavity to be attached to the first magnetic yoke.

Further, the iron core sleeve is fixed on the lower surface of the first magnetic yoke.

Furthermore, the movable iron core is positioned below the magnetic conduction and can move up and down in the iron core sleeve, and the movable iron core can drive a movable contact bridge and a static conductive column in the contact system to be connected and disconnected in the process of moving up and down in the iron core sleeve.

Further, a coil is arranged outside the iron core sleeve.

Furthermore, a magnetic conduction ring is arranged between the coil and the iron core sleeve.

Further, the contact system includes that the movable contact bridge is led with quiet electric conduction, electromagnetic system includes permanent magnet, magnetic conduction board, first yoke, second yoke, moves iron core, magnetic conduction ring and coil, the quiet electric conduction post is installed on the casing, and the casing outside is arranged in to one end, and the other end is arranged in the casing inner chamber with the movable contact bridge is corresponding, and the second yoke is arranged in casing inner chamber bottom, first yoke is installed the upper end of second yoke, the loose axle upper end is passed via hole on the first yoke is connected with the contact system, the lower extreme of loose axle is located the inner space of second yoke, moves the iron core dress and is in on the lower extreme of loose axle.

Advantageous effects

The utility model provides a pair of magnetic latching contactor utilizes the magnetic latching principle of permanent magnet, has realized need not to last also can keep the purpose that the sound contact is in the closed state for the coil power supply when the main circuit switch-on, has effectively reduced the energy consumption when the main circuit switch-on keeps.

Drawings

Fig. 1 is a product diagram of the embodiment of the present invention.

Fig. 2 is an exploded view of an embodiment of the present invention.

Fig. 3 is an internal structure diagram of the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", "front", "back", "left", "right", "side for common use", "side for standby" and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Examples

In order to solve the technical problem that the conventional contactor needs to continuously supply power to a coil when a main loop is connected to keep a moving contact and a static contact in a closed state, so that energy is wasted, as shown in fig. 1 and 2, the embodiment provides a magnetic latching contactor which comprises an electromagnetic system a and a contact system b, wherein the contact system b can be connected and disconnected under the action of the electromagnetic system a to realize the connection and disconnection of the contactor. As shown in fig. 3 and 4, the contact system b includes a movable contact bridge 6 and a stationary conductive column 7, the electromagnetic system a includes a permanent magnet 1, a magnetic conductive plate 3, a first magnetic yoke 2, a second magnetic yoke 10, a movable iron core 5, a magnetic conductive ring 9 and a coil 8, the stationary conductive column 7 is installed on a housing 11, one end of the stationary conductive column is installed outside the housing 11, the other end of the stationary conductive column is installed in an inner cavity of the housing 11 and corresponds to the movable contact bridge 6, the second magnetic yoke 10 is installed at the bottom of the inner cavity of the housing 11, the first magnetic yoke 2 is installed at the upper end of the second magnetic yoke 10, the upper end of a movable shaft 12 penetrates through a via hole on the first magnetic yoke 2 to be connected with the contact system b, the lower end of the movable shaft 12 is located in an inner space of the second magnetic yoke 10, and the movable iron core 5 is installed at the lower end of the movable shaft 12.

More specifically, one side surface of the permanent magnet 1 is attached to the first magnetic yoke 2, and the other side surface is attached to the magnetic conductive plate 3, as shown in fig. 3, in this embodiment, the permanent magnet 1 is located below the first magnetic yoke 2 and attached to the lower surface of the first magnetic yoke 2, and the magnetic conductive plate 3 is located below the permanent magnet 1 and attached to the lower surface of the permanent magnet 1. The permanent magnet 1 is arranged in a manner of magnetizing up and down, the upper surface is an N pole, the lower surface is an S pole, or the upper surface is an S pole, and the lower surface is an N pole. The whole body of permanent magnet 1 and magnetic conduction plate 3 laminating back together through iron core sleeve 4 with first yoke 2 laminating setting. In this embodiment, the core sleeve 4 is fixed to the lower surface of the first yoke 2.

The permanent magnet 1 and the magnetic conduction plate 3 are attached together, and the whole is located in a step inner cavity 401 in the iron core sleeve 4 and is abutted by a step 401a of the step inner cavity 401 to be attached to the first magnetic yoke 2. Further, the movable iron core 5 is located below the magnetic conductive plate 3, the movable iron core 5 can move up and down in the iron core sleeve 4, and the movable iron core 5 can drive the movable contact bridge 6 and the static conductive column 7 in the contact system b to be connected and disconnected in the process of moving up and down in the iron core sleeve 4. And a coil 8 is arranged outside the iron core sleeve 4. And a magnetic conductive ring 9 is arranged between the coil 8 and the iron core sleeve 4.

In this embodiment, as shown in fig. 3, the coil 8 is sleeved on the iron core sleeve 4, the positive energization is performed, the attraction force generated by the coil 8 is superposed with the attraction force generated by the permanent magnet 1, and when the attraction force generated by the permanent magnet 1 and the coil 8 is greater than the counter force of the spring 13, the movable iron core 5 starts to move upward until the movable contact bridge 6 and the static conductive column 7 are closed; the coil 8 stops supplying power, and the movable iron core 5 is kept in a closed state by the attraction of the permanent magnet 1; when the attraction force provided by the permanent magnet 1 is smaller than the counter force of the spring 13, the movable iron core 5 starts to move downwards until the initial position of disconnection; the coil 8 stops supplying power, the attraction force provided by the permanent magnet 1 is not enough to overcome the counterforce of the spring 13, and the movable iron core 5 is kept at the open position.

According to the magnetic latching contactor provided by the embodiment, the purpose that the movable and fixed contacts can be kept in a closed state without continuously supplying power to the coil when the main loop is connected is achieved by utilizing the magnetic latching principle of the permanent magnet, and the energy consumption when the main loop is connected and kept is effectively reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A magnetic latching contactor comprises an electromagnetic system (a) and a contact system (b), wherein the contact system (b) can be switched on and off under the action of the electromagnetic system (a) so as to realize the on-off of the contactor, and the magnetic latching contactor is characterized in that: electromagnetic system (a) includes permanent magnet (1), a permanent magnet (1) side sets up with first yoke (2) laminating, and another side sets up with magnetic conduction board (3) laminating.

2. A magnetic latching contactor as claimed in claim 1, wherein: the permanent magnet (1) is arranged in a manner of magnetizing up and down.

3. A magnetic latching contactor as claimed in claim 1 or 2, wherein: the whole body of permanent magnet (1) and magnetic conduction board (3) laminating back together through iron core sleeve (4) with first yoke (2) laminating setting.

4. A magnetic latching contactor as claimed in claim 3, wherein: the whole after permanent magnet (1) and magnetic conduction board (3) laminating together is located in step inner chamber (401) in iron core sleeve (4), and by step (401 a) of step inner chamber (401) support with the laminating of first yoke (2).

5. A magnetic latching contactor as claimed in claim 3, wherein: the iron core sleeve (4) is fixed on the lower surface of the first magnetic yoke (2).

6. A magnetic latching contactor as claimed in claim 1, wherein: the movable iron core (5) is positioned below the magnetic conduction plate (3), the movable iron core (5) can move up and down in the iron core sleeve (4) in a reciprocating mode, and the movable iron core (5) can drive a movable contact bridge (6) and a static conductive column (7) in the contact system (b) to be connected and disconnected in the process of moving up and down in the iron core sleeve (4).

7. A magnetic latching contactor as claimed in claim 3, wherein: and a coil (8) is arranged outside the iron core sleeve (4).

8. A magnetic latching contactor as claimed in claim 7, wherein: and a magnetic conduction ring (9) is arranged between the coil (8) and the iron core sleeve (4).

9. A magnetic latching contactor as claimed in claim 1, wherein: contact system (b) are including moving contact bridge (6) and static conductive column (7), electromagnetic system (a) includes permanent magnet (1), magnetic conduction board (3), first yoke (2), second yoke (10), moves iron core (5), magnetic conduction ring (9) and coil (8), the static conductive column (7) is installed on casing (11), and casing (11) outside is arranged in to one end, and the other end arrange in casing (11) inner chamber with it is corresponding to move contact bridge (6), and second yoke (10) is arranged in casing (11) inner chamber bottom, install first yoke (2) the upper end of second yoke (10), loose axle (12) upper end is passed via hole on first yoke (2) is connected with contact system (b), the lower extreme of loose axle (12) is located the inner space of second yoke (10), moves iron core (5) and adorns on the lower extreme of loose axle (12).