CN213277953U - Direct current contactor suitable for being installed on circuit board - Google Patents

Abstract

The utility model discloses a direct current contactor suitable for being installed on a circuit board, an upper bracket and a lower bracket are arranged inside a shell, a coil rack is arranged between the lower bracket and the upper bracket which are fixed at the top of the lower bracket, an upper push rod sleeve is embedded and a lower push rod sleeve are arranged inside the upper push rod sleeve, the upper push rod sleeve and the lower push rod sleeve are positioned on the same central line, a fixed shaft is arranged on the central line, a fixed seat is sleeved on the fixed shaft, two sides of the fixed shaft are fixed with the upper bracket, and the top of the upper bracket is provided with; two sides of the top of the shell are provided with object placing platforms, the bottoms of the object placing platforms are provided with static contacts, a limiting frame is arranged between the two object placing platforms, the top of the fixed shaft is fixed on the limiting frame, and the top of the fixed shaft is fixedly provided with a clamp spring, an insulating gasket, a convex fixing seat and a movable contact spring. 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 control current, optimizes the characteristics of volume through the synergism.

Description

Direct current contactor suitable for being installed on circuit board

Technical Field

The utility model relates to a contactor technical field, more specifically the direct current contactor who relates to an installation on suitable circuit board that says so.

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 direct current contactor of installation on the suitable circuit board on the circuit board.

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; the upper support and the lower support are arranged in the shell, the upper support is fixed at the top of the lower support, a coil rack is arranged between the lower support and the upper support, and a lower push rod sleeve, an upper push rod sleeve and a fixed seat are arranged in the coil rack from bottom to top; the upper push rod sleeve is embedded in the lower push rod sleeve, the upper push rod sleeve and the lower push rod sleeve are positioned on the same central line, a fixed shaft is arranged on the central line, the fixed seat is sleeved on the fixed shaft, two sides of the fixed seat are fixed with the upper support, and the top of the upper support is provided with a baffle plate; the top of the fixed shaft is fixed on the limiting frame, and the top of the fixed shaft is fixedly provided with a snap spring, an insulating gasket, a convex fixed seat and a movable contact spring; the clamp spring is fixed at the tail end of the fixed shaft, the movable contact piece is arranged between the insulating gasket and the convex fixing seat and limited by the clamp spring, an upper reset spring is arranged between the convex fixing seat and the separation blade, the clamp spring is arranged at the bottom of the fixed shaft and limited by the upper push rod sleeve, and a lower reset spring is arranged between the upper push rod sleeve and the fixing seat.

Preferably, in the above dc contactor adapted to be mounted on a circuit board, the housing is provided with magnets at both sides of the movable contact piece at corresponding positions, and an electrical contact system is provided at the top of the upper frame.

Preferably, in the above 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 in corresponding positions.

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

Preferably, in the above dc contactor adapted to be 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 to the bobbin; the countersunk head screw is provided with a flat pad and a spring pad, an auxiliary contact assembly is arranged in the shell and at the countersunk head screw, and the auxiliary contact assembly is electrically connected with the electrical contact system.

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

According to the technical scheme, compare with prior art, the utility model discloses a direct current contactor who installs on being fit for the circuit board, 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 control current, optimizes the characteristics of volume through the synergism.

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 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 3 and a lower bracket 2; the upper support 3 and the lower support 2 are arranged in the shell 1, the upper support 3 is fixed at the top of the lower support 2, a coil rack 4 is arranged between the lower support 2 and the upper support 3, and a lower push rod sleeve 5, an upper push rod sleeve 6 and a fixed seat 7 are arranged in the coil rack 4 from bottom to top; the upper push rod sleeve 6 is embedded in the lower push rod sleeve 5, the upper push rod sleeve and the lower push rod sleeve are positioned on the same central line, a fixed shaft 8 is arranged on the central line, the fixed seat 7 is sleeved on the fixed shaft 8, two sides of the fixed seat are fixed with the upper support 3, and the top of the upper support 3 is provided with a baffle 19; two sides of the top of the shell 1 are provided with object placing tables 20, the bottom of the object placing tables 20 is provided with a static contact piece 14, a limiting frame is arranged between the two object placing tables 20, the top of the fixed shaft 8 is fixed on the limiting frame, and the top of the fixed shaft 8 is fixedly provided with a clamp spring 82, an insulating gasket 81, a convex fixed seat 837 and a movable contact piece 16; the snap spring 82 is fixed at the tail end of the fixed shaft 8, the movable contact piece 16 is arranged between the insulating gasket 81 and the convex fixing seat 837 and limited by the snap spring 82, an upper return spring 84 is arranged between the convex fixing seat 837 and the blocking piece 19, the snap spring 82 is arranged at the bottom of the fixed shaft 8 and limits the upper push rod sleeve 6, and a lower return spring 85 is arranged between the upper push rod sleeve 6 and the fixing seat 7.

In order to further optimize the above technical solution, the housing 1 is provided with magnets 17 on both sides of the corresponding position of the movable contact piece 16, and an electrical contact system 18 on the top of the upper bracket 3.

In order to further optimize the technical scheme, the movable contact 16 is provided with a movable contact 161, the fixed contact 14 is provided with a fixed contact 141, and the fixed contact 141 and the movable contact 161 are in corresponding positions.

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 13 are arranged at the bottom of the surface of the shell 1, countersunk screws 10 are arranged at the top of the surface of the shell, and the pins 13 are connected with the coil rack 4; the countersunk head screw 10 is provided with a flat pad 11 and a spring pad 9, an auxiliary contact assembly 12 is arranged in the shell 1 and at the position of the countersunk head screw 10, and the auxiliary contact assembly 12 is electrically connected with an electrical contact system 18.

In order to further optimize the above technical solution, the countersunk head screw 10 is connected to an external circuit board.

In order to further optimize the technical scheme, the circuit board PCB is suitable for being mounted on a circuit board, the circuit board PCB comprises a main shell 1, an electric contact system 18, an electromagnetic driving system, a magnetic blow-out arc system and an auxiliary switch system, wherein the electric contact system 18 mainly comprises a fixed contact piece 14, a movable contact piece 16, a fixed contact 141 and a movable contact 161 seat, a normally open structure of a main contact is realized, more space is reserved below the movable contact piece 16 to meet the requirement design of the normally open structure or the normally closed structure, if the normally open structure of the circuit is realized, the same fixed contact piece 14 and fixed contact 141 are arranged at the position of the electric contact system 18, the same movable contact piece 16 and movable contact 161 are additionally arranged at the bottom of the movable contact piece 16, and the movable contact 161 faces downwards, the electromagnetic driving system is realized by the aid of a coil, an upper bracket 3, a lower bracket 2, a fixed seat 7, an upper push rod sleeve 6 and a lower push rod sleeve 5, the magnetic blow-out arc extinguishing system is characterized in that the fixed shaft 8 is composed of a fixed shaft 8 and the like, two ends of the fixed shaft 8 are clamped through clamp springs 82 and are installed in a lower shell, a static contact piece 14, an auxiliary switch and a coil lead-out pin are led out of the lower shell respectively to facilitate circuit board installation, the lead-out pins 13 are fixed through glue, the lower support 2 is clamped through the shell 1 and abuts against the static contact piece 14 and the auxiliary switch, looseness of the static contact piece 14 and the auxiliary switch is reduced, service life is prolonged, procedures are reduced, and installation is facilitated.

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 (6)

1. The utility model provides a direct current contactor who installs on suitable circuit board which characterized in that mainly includes: the device comprises a shell, an upper bracket and a lower bracket; the upper support and the lower support are arranged in the shell, the upper support is fixed at the top of the lower support, a coil rack is arranged between the lower support and the upper support, and a lower push rod sleeve, an upper push rod sleeve and a fixed seat are arranged in the coil rack from bottom to top; the upper push rod sleeve is embedded in the lower push rod sleeve, the upper push rod sleeve and the lower push rod sleeve are positioned on the same central line, a fixed shaft is arranged on the central line, the fixed seat is sleeved on the fixed shaft, two sides of the fixed seat are fixed with the upper support, and the top of the upper support is provided with a baffle plate; the top of the fixed shaft is fixed on the limiting frame, and the top of the fixed shaft is fixedly provided with a snap spring, an insulating gasket, a convex fixed seat and a movable contact spring; the clamp spring is fixed at the tail end of the fixed shaft, the movable contact piece is arranged between the insulating gasket and the convex fixing seat and limited by the clamp spring, an upper reset spring is arranged between the convex fixing seat and the separation blade, the clamp spring is arranged at the bottom of the fixed shaft and limited by the upper push rod sleeve, and a lower reset spring is arranged between the upper push rod sleeve and the fixing seat.

2. A direct current contactor adapted to be mounted on a circuit board according to claim 1, wherein said housing is provided with magnets on both sides of the corresponding position of the moving contact and an electrical contact system on the top of the upper frame.

3. The direct current contactor suitable for being mounted on a circuit board as claimed in claim 1, wherein the movable contact piece is provided with a movable contact, the fixed contact piece is provided with a fixed contact, and the fixed contact and the movable contact correspond to each other in position.

4. The direct current contactor as claimed in claim 1, wherein said bobbin is provided with enameled wires.

5. The direct current contactor suitable for being mounted on a circuit board as claimed in claim 1, wherein pins are arranged at the bottom of the surface of the shell, countersunk screws are arranged at the top of the surface of the shell, and the pins are connected with the coil rack; the countersunk head screw is provided with a flat pad and a spring pad, an auxiliary contact assembly is arranged in the shell and at the countersunk head screw, and the auxiliary contact assembly is electrically connected with the electrical contact system.

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

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