CN213277954U

CN213277954U - Magnetic latching direct current contactor suitable for being installed on circuit board

Info

Publication number: CN213277954U
Application number: CN202022578662.0U
Authority: CN
Inventors: 周勃
Original assignee: Zhejiang Sayoon Electric Co ltd
Current assignee: Zhejiang Sayoon Electric Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-05-25
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a magnetism keeps direct current contactor of installation on suitable circuit board, inside upper bracket and lower carriage located the casing, the upper bracket is fixed in the lower carriage top, be equipped with the coil former between lower bracket and the upper bracket, casing top both sides are equipped with puts the thing platform, and be equipped with static contact in putting thing platform bottom, the inside fixed axle that is equipped with of coil former, two parts about the fixed axle divide into, fixed axle top runs through the upper bracket, top and bottom are equipped with outer magnetic conduction circle in proper order on its lower part, magnet circle and interior magnetic conduction circle, be equipped with the plastic ring between two interior magnetic conduction circles, fixed axle top is aligned with spacing. The utility model discloses a design countersunk screw to collocation spring pad and flat pad are convenient for install on the circuit board, and inside each part realizes through the synergism that control current is stable, optimize the volume, are equipped with first thing platform and the second of putting and put the thing platform, through the position that changes the contact point, realize multiple control contact structure.

Description

Magnetic latching direct current contactor suitable for being installed on circuit board

Technical Field

The utility model relates to a contactor technical field, more specifically the magnetism that says so relates to a be fit for installation on circuit board keeps direct current contactor.

Background

At present, in the design of the direct current contactor, in order to extinguish and break the arc, a magnetic quenching principle is often adopted. Two opposite permanent magnets are arranged around the arc, and the arc extinguishing effect is better when the magnetic field intensity of an arc area is larger within a defined magnetic field intensity range. However, the current in the existing direct current contactor is small and is not enough to reach a critical value, and meanwhile, the current in the direct current contactor is unstable, so that the phenomenon of damage often occurs, and the service life is shortened. Meanwhile, the existing direct current contactor is large in size and inconvenient to install.

Therefore, how to provide a dc contactor that has a small size and can be mounted on a circuit board is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a small, can install the magnetism that is fit for installing on the circuit board and keep direct current contactor.

In order to achieve the above object, the present invention provides the following technical solutions, which mainly include: the device comprises a shell, an upper bracket and a lower bracket; wherein, the upper bracket and the lower bracket are arranged in the shell, the upper bracket is fixed on the top of the lower bracket, a coil rack is arranged between the lower bracket and the upper bracket, two sides of the top of the shell are provided with first object placing tables, the bottom of the first object placing table is provided with a static contact piece, a spacing frame is arranged between the two first object placing tables, a fixed shaft is arranged in the coil rack and is divided into an upper part and a lower part, the upper part of the fixed shaft penetrates through the upper bracket, the top and the bottom of the lower part of the fixed shaft are sequentially provided with an outer magnetic conduction ring, a magnet ring and an inner magnetic conduction ring, a plastic ring is arranged between the two inner magnetic conduction rings, the top end of the upper part of the fixed shaft is aligned with the spacing frame, a gasket, a movable contact piece, a convex fixing seat, a concave groove, a reset spring and a separation blade are sequentially arranged on the, the movable contact spring is fixed on the convex part, the concave groove is fixed on the bottom of the convex fixed seat, and a reset spring is arranged between the concave groove and the blocking piece.

Preferably, in the above magnetically latching dc contactor adapted to be mounted on a circuit board, the housing is provided with magnets at two sides of the corresponding position of the moving contact, and a second object placing table is provided at the top of the upper bracket.

Preferably, in the above magnetically latching dc contactor adapted to be mounted on a circuit board, the movable contact is provided with a movable contact, the stationary contact is provided with a stationary contact, and the stationary contact and the movable contact are located in a corresponding position.

Preferably, in the above magnetically latching dc contactor adapted to be mounted on a circuit board, an enameled wire is provided on the bobbin.

Preferably, in the above magnetic latching dc contactor suitable for being mounted on a circuit board, the bottom of the surface of the housing is provided with pins, the top of the surface of the housing is provided with countersunk screws, and the pins are connected with the coil rack; the countersunk head screw is provided with a flat pad and a spring pad, and the inside of the shell and the countersunk head screw are provided with auxiliary contact assemblies.

Preferably, in the above magnetically latching dc contactor adapted to be mounted on a circuit board, the countersunk head screw is connected to an external circuit board.

Preferably, in the above magnetically latching dc contactor adapted to be mounted on a circuit board, a shaft fixing sleeve is disposed at a contact position of the lower portion of the fixing shaft with the outer magnetic conductive ring, the magnet ring and the inner magnetic conductive ring.

According to the technical scheme, compared with the prior art, the utility model discloses a magnetic latching direct current contactor suitable for being installed on a circuit board, the utility model discloses a design countersunk screw, and collocation spring pad and flat pad, be convenient for install on the circuit board, each part realizes through the synergistic action that control current is stable, optimize the volume inside, is equipped with first thing platform and second thing platform of putting, through changing the position of contact point, realizes multiple control contact structure; make the utility model has the characteristics of the installation is convenient, the electric current is stable, small.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Figure 1 is a schematic view of the front cut structure of the utility model.

Figure 2 is the side cut structure schematic diagram of the utility model.

Detailed Description

The technical solutions in the embodiments of 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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-2, which is a magnetic latching dc contactor suitable for being mounted on a circuit board according to the present invention.

The utility model discloses, mainly include: a housing 1, an upper bracket 2 and a lower bracket 3; wherein, the upper bracket 2 and the lower bracket 3 are arranged inside the shell 1, the upper bracket 2 is fixed on the top of the lower bracket 3, a coil rack 4 is arranged between the lower bracket 3 and the upper bracket 2, two sides of the top of the shell 1 are provided with first object placing platforms 5, the bottom of the first object placing platforms 5 is provided with a static contact plate 11, a spacing rack 14 is arranged between the two first object placing platforms 5, a fixed shaft 6 is arranged inside the coil rack 4, the fixed shaft 6 is divided into an upper part and a lower part, the upper part of the fixed shaft 6 penetrates through the upper bracket 2, the upper part and the lower part of the fixed shaft are sequentially provided with an outer magnetic conduction ring 9, a magnet ring 8 and an inner magnetic conduction ring 7, a plastic ring is arranged between the two inner magnetic conduction rings 7, the top end of the upper part of the fixed shaft 6 is aligned with the spacing rack 14, and a gasket 15, a movable contact 12, a convex fixing seat 16, the gasket 15 and the blocking piece 18 are respectively fixed on the fixed shaft 6, the convex fixed seat 16 is sleeved on the fixed shaft 6, the movable contact spring 12 is fixed on the convex part, the concave groove 17 is fixed at the bottom of the convex fixed seat 16, and a return spring 18 is arranged between the concave groove 17 and the blocking piece 18.

In order to further optimize the above technical solution, the housing 1 is provided with magnets 13 at two sides of the corresponding position of the movable contact 12, and a second object placing table 25 is provided at the top of the upper bracket 2.

In order to further optimize the technical scheme, the movable contact piece 12 is provided with a movable contact 121, the fixed contact piece 11 is provided with a fixed contact 19, and the fixed contact 19 corresponds to the movable contact 121 in position.

In order to further optimize the above technical solution, the coil former 4 is provided with an enameled wire.

In order to further optimize the technical scheme, pins 24 are arranged at the bottom of the surface of the shell 1, countersunk screws 20 are arranged at the top of the surface of the shell, and the pins 24 are connected with the coil rack 4; a flat pad 22 and a spring pad 21 are arranged on the countersunk head screw 20, and an auxiliary contact assembly 23 is arranged inside the housing 1 and at the countersunk head screw 20.

In order to further optimize the technical scheme, a shaft fixing sleeve 10 is arranged at the contact position of the lower part of the fixing shaft 6 with the outer magnetic conductive ring 9, the magnet ring 8 and the inner magnetic conductive ring 7.

In order to further optimize the above technical solution, the countersunk head screw 20 is connected to an external circuit board.

In order to further optimize the technical scheme, the product of the application has small volume and a square shape, is more suitable for being installed on a circuit board PCB, and comprises a main shell 1, an electric contact system, an electromagnetic magnetic holding driving system, a magnetic blow-out arc system and an auxiliary switch system, wherein the electric contact system mainly comprises a static contact piece 11, a movable contact piece 12, a static contact 19 and a movable contact 121, so that a normally open structure of the main contact is realized, more space flows out below the movable contact piece 12 to meet an open-close structure or a normally closed structure, if the open-close circuit structure is realized, the same static contact piece 11 and static contact 19 are installed at the position of a second object placing table 25, the same movable contact piece 12 and movable contact 121 are additionally arranged below the movable contact piece 12, and the movable contact 121 faces downwards, the electromagnetic magnetic holding driving system comprises a coil rack 4, a magnet 13 and a coil rack, The outer magnetic conductive ring 9, the inner magnetic conductive ring 7, the upper bracket 2, the lower bracket 3, the shaft fixing sleeve 10 and the fixing shaft 6 form a magnetic retaining system, a coil and a magnet 13 are adopted to generate a magnetic field and magnetic force and the fixing shaft 6 moves, and a movable contact 121 in the electric contact system is pushed to move up and down and is arranged in a lower shell, the lower shell respectively leads out a static contact piece 11, an auxiliary switch and a coil leading-out pin, the leading-out pins are fixed by glue water, the installation of a circuit board PCB is convenient, the upper shell clamps the lower bracket 3 and props against the static contact piece 11 and the auxiliary switch, the looseness of the static contact piece 11 and the auxiliary switch is reduced, the service life is prolonged, the working procedures are reduced, the installation is convenient, the magnetic blowing arc extinguishing system can form a magnetic blowing arc extinguishing system by directly placing the magnet 13 in a groove of the shell 1 at two ends of the movable contact piece 12, the auxiliary switch system pushes the fixing shaft 6, and the auxiliary switch is pushed to work and is synchronous with the main contact, so that the function of an auxiliary switch system is achieved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a magnetism keeps direct current contactor suitable for installation on circuit board which characterized in that mainly includes: the device comprises a shell, an upper bracket and a lower bracket; wherein, the upper bracket and the lower bracket are arranged in the shell, the upper bracket is fixed on the top of the lower bracket, a coil rack is arranged between the lower bracket and the upper bracket, two sides of the top of the shell are provided with first object placing tables, the bottom of the first object placing table is provided with a static contact piece, a spacing frame is arranged between the two first object placing tables, a fixed shaft is arranged in the coil rack and is divided into an upper part and a lower part, the upper part of the fixed shaft penetrates through the upper bracket, the top and the bottom of the lower part of the fixed shaft are sequentially provided with an outer magnetic conduction ring, a magnet ring and an inner magnetic conduction ring, a plastic ring is arranged between the two inner magnetic conduction rings, the top end of the upper part of the fixed shaft is aligned with the spacing frame, a gasket, a movable contact piece, a convex fixing seat, a concave groove, a reset spring and a separation blade are sequentially arranged on the, the movable contact spring is fixed on the convex part, the concave groove is fixed on the bottom of the convex fixed seat, and a reset spring is arranged between the concave groove and the blocking piece.

2. A magnetically held DC contactor as claimed in claim 1, wherein the housing has magnets on opposite sides of the movable contact and a second platform on the top of the upper frame.

3. A magnetically held DC contactor as claimed in claim 1, wherein said movable contact is provided with a movable contact and said fixed contact is provided with a fixed contact, said fixed contact and said movable contact being positioned correspondingly.

4. A magnetically held DC contactor as claimed in claim 1, wherein said bobbin is provided with enameled wires.

5. The magnetically held direct current contactor as claimed in claim 1, wherein the bottom of the housing surface has pins and the top has countersunk screws, the pins are connected to the bobbin; the countersunk head screw is provided with a flat pad and a spring pad, and the inside of the shell and the countersunk head screw are provided with auxiliary contact assemblies.

6. A magnetically held DC contactor as claimed in claim 5, wherein said countersunk screw is adapted to be connected to an external circuit board.

7. A magnetically held dc contactor as claimed in claim 1, wherein said fixed shaft has a shaft retaining sleeve at the location where said lower portion of said fixed shaft contacts said outer magnetic ring, said magnetic ring and said inner magnetic ring.