CN212342533U

CN212342533U - Excitation type dual-power contact pressing device

Info

Publication number: CN212342533U
Application number: CN202021763319.7U
Authority: CN
Inventors: 龚叶; 刘凯
Original assignee: Nanjing Apaitek Technology Co ltd
Current assignee: Nanjing Apaitek Technology Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-01-12
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses an excitation type dual power supply contact press device, which comprises an outer shell, the inner chamber top fixed mounting of shell has the inside casing, the inner chamber of inside casing is provided with the pivot, the top fixed connection disc of pivot, the top axle center fixed mounting of disc has the outer tube of pressing down, the inside of pressing down the outer tube sets up first spring and presses down the inner tube, the top of pressing down the inner tube sets up the conversion knob, the bottom symmetry of conversion knob is provided with presses down abrupt piece, the inner chamber bottom symmetry of inside casing is provided with the second spring, it has stop device to go back fixed mounting in the second spring, the equal fixed mounting moving contact mount pad in second spring and stop device's top, the beneficial effect of the utility model: the manual and automatic switching mode is adopted, and the manual mode and the automatic mode are not interfered with each other; the phenomenon that manual switching is not easy to fail to cause wrong switching occurs.

Description

Excitation type dual-power contact pressing device

Technical Field

The utility model relates to a power transfer switch technical field specifically is an excitation type dual supply contact press device.

Background

The dual-power transfer switch is a switch capable of switching between two power supplies, and along with the development of social economy, the dual-power transfer switch is widely applied to important places where power failure is not allowed, such as high-rise buildings, communities, hospitals, airports, wharfs, fire fighting, metallurgy, chemical engineering, textiles and the like.

The existing dual-power transfer switch generally adopts a mechanical locking device to control the selection of a power supply, the existing mechanical locking device generally performs power supply switching through manual operation, an operator must perform on-site control on the switch, the control is inconvenient for the operator, the switch switching can not be performed at the first time, and in addition, the problem of potential safety hazard also generally exists in manual control, so that the dual-power transfer switch is not suitable for popularization and use.

However, in the switching between the normal use and the standby use, the situation that the coil is always operated and burnt due to the jamming problem in the switching process or the switch is damaged due to the dispersion of the ion flow ions in the use process can occasionally occur due to the parts, so the invention aims to apply the manual-automatic integrated power transfer switch.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an excitation type dual supply contact press device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an excitation type dual-power contact pressing device comprises a shell, wherein an inner frame is fixedly installed at the top of an inner cavity of the shell, a rotating shaft is arranged in the inner cavity of the inner frame, a disc is fixedly connected to the top of the rotating shaft, a pressing outer tube is fixedly installed at the top axis position of the disc, a first spring and a pressing inner tube are arranged inside the pressing outer tube, a switching knob is arranged at the top of the pressing inner tube, pressing lugs are symmetrically arranged at the bottom of the switching knob, second springs are symmetrically arranged at the bottom of the inner cavity of the inner frame, a limiting device is fixedly installed in the second springs, moving contact installation seats are fixedly installed at the tops of the second springs and the limiting device, moving contacts are arranged on the moving contact installation seats, through holes are formed in the disc, static contacts matched and connected with the moving contacts are arranged on the inner wall of the through holes, and an electromagnet is arranged in the limiting device.

As a further aspect of the present invention: the horizontal plane of disc and the horizontal plane at shell top are parallel and level mutually, and the shell top is reserved has the opening that corresponds with the disc, set up the dark line in the disc, just the dark line is through inside the pivot.

As a further aspect of the present invention: the number of the through holes is at least four, and the distance between the two pressing protruding blocks is equal to the diameter of a circle surrounded by the four through holes.

As a further aspect of the present invention: the limiting device comprises an inner rod and an outer rod, the inner rod is connected with the inner wall of the outer rod in an inserting mode, the top of the inner rod is fixedly connected with the bottom of the moving contact mounting seat, the electromagnet is arranged inside the outer rod, and the inner rod is magnetically connected with the electromagnet.

As a further aspect of the present invention: the moving contact mounting seat is characterized in that the longitudinal section of the moving contact mounting seat is of a trapezoidal structure, the cross section of the moving contact mounting seat is of a circular structure, the moving contact is arranged at a position close to the top end, and the static contact is arranged at a position close to the bottom end of the disc.

As a further aspect of the present invention: the top of disc still is provided with guard flap, guard flap is ring shape setting, just guard flap is located the outside of through-hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. two different conversion modes, namely manual conversion and automatic conversion, can be realized, and the conversion process is simple;

2. in the manual switching process, the switching of the power supply can be realized only by two different steps of pressing and rotating, and the condition of switching by mistake is not easy to occur;

3. the two switching modes are not interfered with each other and can be carried out independently or simultaneously.

Drawings

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

FIG. 1 is a sectional view of the present invention;

FIG. 2 is a schematic view of the through hole configuration of the present invention;

fig. 3 is an enlarged view of the structure of the present invention.

In the figure: the device comprises a shell 1, an inner frame 2, a rotating shaft 3, a disc 4, a pressing outer tube 5, a first spring 6, a pressing inner tube 7, a rotating device 8, a pressing bump 9, a second spring 10, a limiting device 11, a moving contact mounting seat 12, a moving contact 13, a moving contact 14, a moving contact 15, a protective baffle 16, a motor 17 and an electromagnet 18.

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.

Referring to fig. 1-3, in an embodiment of the present invention, an excitation type dual power contact pressing device includes a housing 1, an inner frame 2 is fixedly installed on a top portion of an inner cavity of the housing 1, a rotating shaft 3 is disposed in an inner cavity of the inner frame 2, a disc 4 is fixedly connected to a top portion of the rotating shaft 3, a pressing outer tube 5 is fixedly installed on a top axis position of the disc 4, a first spring 6 and a pressing inner tube 7 are disposed inside the pressing outer tube 5, a conversion knob 8 is disposed on a top portion of the pressing inner tube 7, pressing protrusions 9 are symmetrically disposed at a bottom portion of the conversion knob 8, a second spring 10 is symmetrically disposed at a bottom portion of the inner cavity of the inner frame 2, a limiting device 11 is further fixedly installed in the second spring 10, a moving contact mounting seat 12 is fixedly installed at top portions of the second spring 10 and the limiting device 11, a moving contact 13 is, the disc 4 is provided with a through hole 14, the inner wall of the through hole 14 is provided with a static contact 15 which is matched and connected with a movable contact 13, the bottom of the rotating shaft 3 is rotatably connected with a motor 17, and an electromagnet 18 is arranged inside the limiting device 11.

It is worth noting that the horizontal plane of the disc 4 is flush with the horizontal plane of the top of the housing 1, an opening corresponding to the disc 4 is reserved in the top of the housing 1, a hidden line is arranged in the disc 4 and passes through the inside of the rotating shaft 3, the hidden line arranged in the disc 4 is connected with the static contact 15, the hidden line can avoid the phenomenon of hidden line winding caused by the rotation of the disc 4 through the inside of the rotating shaft 3, meanwhile, line holes of the hidden line are reserved in the top of the inner frame 2, the number of the through holes 4 is at least four, and the distance between the two pressing protruding blocks 9 is equal to the diameter of a circle formed by the four through holes 4 in a surrounding mode.

It is worth noting that the limiting device 11 comprises an inner rod and an outer rod, the inner rod is connected with the inner wall of the outer rod in an inserting mode, the top of the inner rod is fixedly connected with the bottom of the moving contact mounting seat 12, the electromagnet 18 is arranged inside the outer rod, the inner rod is magnetically connected with the electromagnet 18, the moving contact mounting seat 12 is limited to move up and down only through the limiting device 11, and the phenomenon that the second spring 10 is bent due to friction resistance between the disc 4 and the moving contact mounting seat 12 under the condition that the disc 4 rotates is avoided.

It should be noted that the longitudinal section of the movable contact mounting seat 12 is a trapezoid structure, the cross section of the movable contact mounting seat is a circular structure, the movable contact 13 is disposed at a position close to the top end, the fixed contact 15 is disposed at a position close to the bottom end of the disk 4, the flat-top conical structure can facilitate the movable contact mounting seat 12 to be inserted into the through hole 14, so that the fixed contact 15 and the movable contact 13 can be conveniently combined, and meanwhile, the movable contact 13 and the fixed contact 15 are not easy to fall off, and the electric shock hazard of personnel can be reduced due to the height arrangement.

It is worth noting that the top of the disc 4 is further provided with a protective baffle 16, the protective baffle 16 is arranged in a circular ring shape, and the protective baffle 16 is located outside the through hole 14, so that the existence of the protective baffle 16 can also reduce the situation of direct contact with the movable contact mounting seat 12, and reduce the danger of electric shock.

Example (b):

in a specific power supply switching process, the power supply switching process can be divided into two steps, wherein in the first step, the switching knob 8 is pressed downwards, and along with the downward pressing of the switching knob 8, the pressing protrusion 9 presses the moving contact mounting base 12 to be separated from the through hole 14, namely, the moving contact 13 is separated from the static contact 15, so that the power supply switching-off process is completed; a second step of rotating the conversion knob 8, wherein the whole disc 4 rotates along with the rotation of the conversion knob 8, and the horizontal height of the movable contact mounting seat 12 is lower than that of the bottom of the disc 4 at the moment, so that the disc 4 can rotate, when the conversion knob 8 rotates to the angle position of another power supply, the conversion knob 8 is loosened, the first spring 6 can bounce the conversion knob 8, the pressing lug 9 is separated from the through hole 14, the movable contact mounting seat 12 is not pressed by the pressing lug 9, and the movable contact mounting seat 12 is bounced by the second spring 10, so that the combination of the static contact 15 and the movable contact 13 is realized, and the process of power supply conversion is completed;

when the coil current around the electromagnet 18 is increased to generate larger magnetic force, the inner rod is influenced by the magnetic force of the electromagnet 18 to serve the elastic force of the second spring 10, the moving contact 13 is driven to be separated from the static contact 15, the motor 17 drives the disc 4 to rotate after being electrified, after a corresponding instruction is finished, the electromagnet 18 and the motor 17 stop working, and the first spring 6 and the second spring 10 automatically finish the remaining power supply conversion work;

the switching angle between the two power sources is set to ninety degrees, which is convenient for operation and observation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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.

Claims

1. The utility model provides an excitation type dual supply contact press device, includes shell (1), its characterized in that: an inner frame (2) is fixedly installed at the top of an inner cavity of the outer shell (1), a rotating shaft (3) is arranged in the inner cavity of the inner frame (2), a disc (4) is fixedly connected to the top of the rotating shaft (3), a pressing outer tube (5) is fixedly installed at the top axle center position of the disc (4), a first spring (6) and a pressing inner tube (7) are arranged inside the pressing outer tube (5), a conversion knob (8) is arranged at the top of the pressing inner tube (7), pressing convex blocks (9) are symmetrically arranged at the bottom of the conversion knob (8), a second spring (10) is symmetrically arranged at the bottom of the inner cavity of the inner frame (2), a limiting device (11) is fixedly installed in the second spring (10), moving contact installation seats (12) are fixedly installed at the tops of the second spring (10) and the limiting device (11), and moving contacts (13) are arranged on the moving contact installation seats (12, the disc (4) is provided with a through hole (14), the inner wall of the through hole (14) is provided with a static contact (15) which is connected with the moving contact (13) in a matching way, the bottom of the rotating shaft (3) is rotatably connected with a motor (17), and an electromagnet (18) is arranged inside the limiting device (11).

2. The excitation type dual-power contact pressing device according to claim 1, wherein: the horizontal plane of disc (4) and the horizontal plane at shell (1) top are parallel and level mutually, and shell (1) top is reserved has the opening that corresponds with disc (4), set up the hidden line in disc (4), just the hidden line passes through pivot (3) insidely.

3. The excitation type dual-power contact pressing device according to claim 1, wherein: the number of the through holes (14) is at least four, and the distance between the two pressing lugs (9) is equal to the diameter of a circle surrounded by the four through holes (14).

4. The excitation type dual-power contact pressing device according to claim 1, wherein: the limiting device (11) comprises an inner rod and an outer rod, the inner rod is inserted into the inner wall of the outer rod, the top of the inner rod is fixedly connected with the bottom of the moving contact mounting seat (12), the electromagnet (18) is arranged inside the outer rod, and the inner rod is magnetically connected with the electromagnet (18).

5. The excitation type dual-power contact pressing device according to claim 1, wherein: the longitudinal section of the moving contact mounting seat (12) is of a trapezoidal structure, the cross section of the moving contact mounting seat is of a circular structure, the moving contact (13) is arranged at a position close to the top end, and the static contact (15) is arranged at a position close to the bottom end of the disc (4).

6. The excitation type dual-power contact pressing device according to claim 1, wherein: the top of disc (4) still is provided with guard flap (16), guard flap (16) are ring shape setting, just guard flap (16) are located the outside of through-hole (14).