CN214068650U

CN214068650U - Reliable low-cost support structure and contactor thereof

Info

Publication number: CN214068650U
Application number: CN202022168859.7U
Authority: CN
Inventors: 黄鹤; 谭秋雪; 汤保成; 霍振普; 袁进
Original assignee: Zhongtai Fuan Dongguan Electronic Technology Co ltd
Current assignee: Zhongtai Fuan Dongguan Electronic Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-08-27
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to the technical field of contactors, in particular to a reliable low-cost support structure and a contactor thereof, which comprises a bottom plate and side plates arranged on two sides of the bottom plate; the coil is placed between the two side plates; the bottom plate extends upwards to form a circular ring part; the circular part is provided with a placing groove for placing the movable iron core. The utility model discloses a hole bottom the bottom plate carries out the turn-ups tensile, and tensile certain thickness and highly form ring portion to replace the magnetic ring, thereby saved the operating hour of magnetic ring and support crimping technology and the quality risk that the operation produced, and then the cost is reduced has promoted product reliability.

Description

Reliable low-cost support structure and contactor thereof

Technical Field

The utility model relates to a contactor technical field, concretely relates to reliable low-cost supporting structure and contactor thereof.

Background

A contactor is an electronic control device having a control system (also known as an input loop) and a controlled system (also known as an output loop), typically used in automatic control circuits, which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

The direct current contactor is one of contactors, and most of the existing direct current contactors adopt a movable spring direct-acting type (also called a solenoid direct-acting type) scheme, and the principle is that the direct current contactor is driven by a coil, electromagnetic force is generated through a magnetic circuit with a certain shape surrounding the periphery, and initial kinetic energy is provided for attraction of product contacts.

The magnetic circuit system of the direct current contactor generally comprises a yoke plate, a bracket, a magnetic conduction ring, a static iron core and a movable iron core to form a closed loop surrounding the axial direction of a coil, a certain gap is reserved between the movable iron core and the static iron core, and after the coil is electrified, electromagnetic force generated by the magnetic circuit system enables the movable iron core to move towards the closing direction of the magnetic circuit, namely the direction of the static iron core;

in the process of producing the direct current contactor, the magnetic conduction ring and the bracket need to be in compression joint, the operation of the compression joint process is easy to generate quality risks, the reliability of products is influenced, and the production cost of the magnetic conduction ring and the bracket is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned among the prior art not enough, provide a reliable low-cost bearing structure and contactor thereof.

The purpose of the utility model is realized through the following technical scheme: a reliable low-cost support structure comprises a bottom plate and side plates arranged on two sides of the bottom plate; the coil is placed between the two side plates; the bottom plate extends upwards to form a circular ring part; the circular part is provided with a placing groove for placing the movable iron core.

The utility model discloses further set up to, bottom plate and two curb plates form U type structure.

The utility model discloses further set up to, the top of curb plate is equipped with the draw-in groove with yoke iron plate joint.

The utility model discloses further set up to, curb plate, bottom plate and ring portion integrated into one piece.

A contactor comprises an insulating cover, a yoke iron plate, a bracket, a static contact, a moving point plate and a moving spring assembly; an arc extinguishing chamber is formed between the insulating cover and the yoke plate; one end of the static contact extends into and is fixed in the arc extinguishing chamber; the bracket is arranged at the bottom of the yoke iron plate; the movable spring assembly comprises a push rod and a magnetic circuit assembly; the magnetic circuit component is used for driving the push rod to move so as to enable the moving point plate to be in contact with the fixed contact;

the magnetic circuit component comprises a static iron core, a movable iron core and a coil; the coil is wound outside the static iron core; the movable iron core is arranged at the bottom of the static iron core; one end of the push rod is connected with the movable iron core; the other end of the push rod is connected with the moving point plate;

the bracket comprises a bottom plate and side plates arranged on two sides of the bottom plate; the coil is arranged between the two side plates; the bottom plate extends upwards to form a circular ring part; the circular part is provided with a placing groove for placing the movable iron core.

The utility model has the advantages that: the utility model discloses a hole bottom the bottom plate carries out the turn-ups tensile, and tensile certain thickness and highly form ring portion to replace the magnetic ring, thereby saved the operating hour of magnetic ring and support crimping technology and the quality risk that the operation produced, and then the cost is reduced has promoted product reliability.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.

Fig. 1 is a cross-sectional view of the contactor of the present invention;

fig. 2 is a schematic structural diagram of the yoke plate, the bracket, the movable iron core and the stationary iron core of the present invention;

fig. 3 is a schematic structural view of the bracket of the present invention;

wherein: 1. an insulating cover; 11. an arc-extinguishing chamber; 2. a yoke iron plate; 3. a support; 41. static contact; 42. a moving point plate; 5. a push rod; 61. a stationary iron core; 62. a movable iron core; 7. a coil; 81. a base plate; 82. a side plate; 83. a circular ring part; 91. a placement groove; 92. a clamping groove.

Detailed Description

The invention will be further described with reference to the following examples.

As can be seen from fig. 1 to 3; the reliable low-cost support structure of this embodiment includes a bottom plate 81 and side plates 82 disposed on two sides of the bottom plate 81; the coil 7 is placed between the two side plates 82; the bottom plate 81 extends upwards to form a circular ring part 83; the circular ring portion 83 is provided with a placing groove 91 for placing the movable iron core 62.

Specifically, the reliable low-cost support structure described in this embodiment is stretched by flanging the hole at the bottom of the bottom plate 81, and the ring portion 83 is formed by stretching a certain thickness and height, so as to replace the flux ring, thereby eliminating the man-hour of the compression joint process of the flux ring and the support 3 and the quality risk generated by the operation, further reducing the cost, and improving the reliability of the product.

In the present embodiment, the bottom plate 81 and the two side plates 82 form a U-shaped structure. The structure of the contactor is more stable through the arrangement.

In the embodiment of the reliable low-cost support structure, the top of the side plate 82 is provided with a clamping groove 92 clamped with the yoke plate 2. The fixation of the side plate 82 to the yoke plate 2 is facilitated by the above arrangement.

In the present embodiment, the side plate 82, the bottom plate 81 and the circular ring 83 are integrally formed. The production and the manufacture of the bracket 3 are convenient through the arrangement, and the cost is saved.

The contactor according to the embodiment includes an insulating cover 1, a yoke plate 2, a bracket 3, a fixed contact 41, a moving point plate 42 and a moving spring assembly; an arc extinguishing chamber 11 is formed between the insulating cover 1 and the yoke plate 2; one end of the static contact 41 extends into and is fixed in the arc extinguishing chamber 11; the bracket 3 is arranged at the bottom of the yoke iron plate 2; the movable spring assembly comprises a push rod 5 and a magnetic circuit assembly; the magnetic circuit component is used for driving the push rod 5 to move so as to enable the moving point plate 42 to be in contact with the fixed contact 41;

the magnetic circuit component comprises a static iron core 61, a movable iron core 62 and a coil 7; the coil 7 is wound outside the static iron core 61; the movable iron core 62 is arranged at the bottom of the static iron core 61; one end of the push rod 5 is connected with the movable iron core 62; the other end of the push rod 5 is connected with a moving point plate 42;

the bracket 3 comprises a bottom plate 81 and side plates 82 arranged at two sides of the bottom plate 81; the coil 7 is arranged between the two side plates 82; the bottom plate 81 extends upwards to form a circular ring part 83; the circular ring portion 83 is provided with a placing groove 91 for placing the movable iron core 62.

Specifically, in the contactor according to this embodiment, an arc extinguishing chamber 11 is formed between the insulating cover 1 and the yoke plate 2, the stationary contact 41 is fixed at the top of the arc extinguishing chamber 11, the moving-point plate 42 moves in the arc extinguishing chamber 11, the push rod 5 penetrates into the arc extinguishing chamber 11 from the bottom of the yoke plate 2 and then is connected to the moving-point plate 42, when the coil 7 is energized, the electromagnetic force generated by the magnetic circuit component moves the moving iron core 62 in the direction of closing the magnetic circuit, that is, moves toward the stationary iron core 61, so that the moving iron core 62 drives the push rod 5 to move upward, and the moving-point plate 42 is in contact with the stationary contact 41;

this embodiment is through carrying out the turn-ups tensile in the hole of bottom plate 81 bottom, tensile certain thickness and highly form ring portion 83 to replace the magnetic ring, thereby saved the operating hour of magnetic ring and support 3 crimping technology and the quality risk that the operation produced, and then the cost is reduced has promoted product reliability.

In the contactor according to this embodiment, the bottom plate 81 and the two side plates 82 form a U-shaped structure. The structure of the contactor is more stable through the arrangement.

In the contactor according to this embodiment, the top of the side plate 82 is provided with a slot 92 for being connected with the yoke plate 2 in a clamping manner. The fixation of the side plate 82 to the yoke plate 2 is facilitated by the above arrangement.

In the contactor according to this embodiment, the side plate 82, the bottom plate 81, and the circular ring 83 are integrally formed. The production and the manufacture of the bracket 3 are convenient through the arrangement, and the cost is saved.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A reliable low-cost support structure, characterized in that: comprises a bottom plate (81) and side plates (82) arranged at two sides of the bottom plate (81); the coil (7) is placed between the two side plates (82); the bottom plate (81) extends upwards to form a circular ring part (83); the circular ring part (83) is provided with a placing groove (91) for placing the movable iron core (62).

2. A reliable low cost support structure according to claim 1, wherein: the bottom plate (81) and the two side plates (82) form a U-shaped structure.

3. A reliable low cost support structure according to claim 1, wherein: and the top of the side plate (82) is provided with a clamping groove (92) clamped with the yoke iron plate (2).

4. A reliable low cost support structure according to claim 1, wherein: the side plate (82), the bottom plate (81) and the circular ring part (83) are integrally formed.

5. A contactor, characterized by: the device comprises an insulating cover (1), a yoke plate (2), a bracket (3), a static contact (41), a moving point plate (42) and a moving spring component; an arc extinguishing chamber (11) is formed between the insulating cover (1) and the yoke plate (2); one end of the static contact (41) extends into and is fixed in the arc extinguishing chamber (11); the bracket (3) is arranged at the bottom of the yoke iron plate (2); the movable spring assembly comprises a push rod (5) and a magnetic circuit assembly; the magnetic circuit component is used for driving the push rod (5) to move so as to enable the moving point plate (42) to be in contact with the fixed contact (41);

the magnetic circuit component comprises a static iron core (61), a movable iron core (62) and a coil (7); the coil (7) is wound outside the static iron core (61); the movable iron core (62) is arranged at the bottom of the static iron core (61); one end of the push rod (5) is connected with the movable iron core (62); the other end of the push rod (5) is connected with a moving point plate (42);

the support (3) comprises a bottom plate (81) and side plates (82) arranged on two sides of the bottom plate (81); the coil (7) is arranged between the two side plates (82); the bottom plate (81) extends upwards to form a circular ring part (83); the circular ring part (83) is provided with a placing groove (91) for placing the movable iron core (62).

6. A contactor according to claim 5, characterized in that: the bottom plate (81) and the two side plates (82) form a U-shaped structure.

7. A contactor according to claim 5, characterized in that: and the top of the side plate (82) is provided with a clamping groove (92) clamped with the yoke iron plate (2).

8. A contactor according to claim 5, characterized in that: the side plate (82), the bottom plate (81) and the circular ring part (83) are integrally formed.