CN204991591U - Take single permanent magnetism circuit breaker of manual combined floodgate function - Google Patents

Abstract

The utility model discloses a single permanent magnet circuit breaker with a manual closing function in the field of permanent magnet control mechanisms, comprising a housing and a magnetic brake mechanism, the magnetic brake mechanism includes a body and a moving iron core, and the housing is equipped with There is a waist-shaped hole on the pillar; there is an iron core pin shaft on the moving iron core, and a support arm is connected to the casing in rotation. The iron core pin shaft is inserted into the waist-shaped hole of the support arm, and the other end of the support arm is provided with a support arm. Pin shaft, the pin shaft of the support arm is inserted into the limit hole of the support arm of the main beam. The main beam is provided with a main beam pin shaft. One of the main beam pin shafts is hinged with a pressure plate. The lower part of the pressure plate is provided with a pressure plate pin shaft inserted into the waist hole of the pillar. Inside; the housing is provided with a camshaft; the housing is provided with a spring mechanism drive arm, and the other end of the spring mechanism drive arm is provided with a drive arm pin, which is inserted into the limit hole of the main beam drive arm correspondingly, and the spring mechanism drives the arm Connected to the spring mechanism. The utility model can perform closing operation in the case of power failure to deal with unexpected situations, and the device has a simple structure and saves costs.

Description

A single permanent magnet circuit breaker with manual closing function

technical field

The utility model belongs to the field of permanent magnet control mechanisms, in particular to a permanent magnet circuit breaker.

Background technique

In the prior art, the vacuum circuit breaker generally adopts a spring operating mechanism, and the energy supplied by the motor to the spring operating mechanism drives the movement of the contacts of the vacuum interrupter, which has many moving parts and complicated movement. In order to solve the problems of slow opening speed and short service life of the vacuum circuit breaker with the spring operating mechanism, there is a permanent magnet circuit breaker in the prior art. The braking mechanism includes a main body and a moving iron core capable of horizontal reciprocating movement. Magnets and coils are provided on the outer sides corresponding to both ends of the moving iron core. The moving iron core is connected to one end of the insulating pull rod through the transmission mechanism, and the other end One end is connected with the contacts of the vacuum interrupter. When the device is working, the coil is energized, and the moving iron core moves to the end with a larger magnetic force, and the contact of the vacuum interrupter is driven to move through the transmission mechanism and the insulating pull rod. The disadvantages are: the structure of the transmission mechanism is complicated, and the production cost is high. , prone to failure; when the device loses power and there is no backup power supply, the permanent magnet circuit breaker cannot be closed, resulting in the inability to respond to emergencies.

Utility model content

The purpose of the utility model is to provide a single permanent magnet circuit breaker with manual closing function, which can perform closing operation in the case of power failure to deal with emergencies, and the device has a simple structure and saves costs.

The purpose of this utility model is achieved as follows: a single permanent magnet circuit breaker with manual closing function, including a housing and a magnetic braking mechanism arranged in the housing, the magnetic braking mechanism includes a body and a horizontal For the reciprocating moving iron core, a number of pillars are arranged at intervals along the horizontal direction inside the housing, and a horizontal waist-shaped hole is arranged on the upper part of each pillar, and a vertical waist-shaped hole is arranged on the middle part of the pillar; one end of the moving iron core There is an iron core pin shaft, and the support arm is rotatably connected to the fixed shaft whose axis is perpendicular to the moving iron core in the housing. One end of the support arm is provided with a waist-shaped hole, and the iron core pin shaft is inserted into the waist shape of the support arm. In the hole, the other end of the support arm is provided with a support arm pin, and the support arm pin is inserted into the limit hole of the support arm of the horizontal main beam, and the main beam is respectively provided with a main beam pin corresponding to each pillar. and inserted into the horizontal waist-shaped hole of the corresponding pillar, one of the main beam pins is hinged with an inclined pressure plate, and the lower part of the pressure plate is provided with a pressure plate pin and inserted into the vertical waist-shaped hole of the corresponding pillar; A camshaft is provided on the outside corresponding to the other end of the iron core; a spring mechanism drive arm that can rotate around one end is also provided in the housing, and the other end of the spring mechanism drive arm is provided with a drive arm pin, which is inserted into the drive arm correspondingly. In the limiting hole of the driving arm of the main beam, the driving arm of the spring mechanism is connected with the spring mechanism.

When the utility model is working, the moving iron core is driven by the magnetic force to reciprocate horizontally. When the moving iron core moves to the left, the support arm rotates clockwise around the fixed shaft, driving the main beam to move to the right, and the pressure plate moves along the pin axis of the main beam. Turn clockwise, the pin shaft of the pressure plate moves in the vertical waist-shaped hole of the pillar, the pressure plate is connected with the connecting rod, and the connecting rod drives the movable end of the vacuum interrupter to move through the insulating rod to make the opening action; the moving iron core moves to the right , the support arm rotates counterclockwise around the fixed shaft, driving the main beam to move to the left, the pressure plate rotates counterclockwise around the pin shaft of the main beam, the pin shaft of the pressure plate moves in the vertical waist-shaped hole of the pillar, and the pressure plate passes through the connecting rod and the insulating pull rod Drive the moving end of the vacuum interrupter and make a closing action. Compared with the prior art, the utility model has the beneficial effect that: in the case of power failure, the moving iron core can be pushed to the left by turning the camshaft, so that the main beam moves to the right, and the vacuum interrupter makes a split. Also in the case of power failure, the spring mechanism can be manually stretched to store energy, the spring mechanism shrinks and the spring mechanism drives the arm to drive the main beam to move to the left, and the vacuum interrupter makes a closing action, which can deal with power failure And there is no backup power supply, not limited by external conditions. The device has the advantages of simple structure, convenient use, cost saving and trouble-free occurrence.

As a further improvement of the utility model, there are three pillars, and the pin shafts of the pressing plates are correspondingly inserted into the vertical waist-shaped holes of the middle pillars. The pin shaft of the main beam moves along the horizontal waist-shaped hole of the pillar, and the pin shaft of the pressure plate moves along the vertical waist-shaped hole of the middle pillar.

As a further improvement of the utility model, the main girder is provided with an opening spring through the connecting plate.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the utility model.

Fig. 2 is an enlarged view of point A in Fig. 1 .

Fig. 3 is an enlarged view of B in Fig. 1 .

Fig. 4 is a front view of the utility model.

Fig. 5 is a top view of the utility model.

Among them, 1 shell, 2 magnetic brake mechanism, 3 moving iron core, 3a iron core pin, 4 pillar, 5 fixed shaft, 6 arm, 6a arm pin, 7 waist hole, 8 main beam, 8a Arm limiting hole, 8b main beam pin, 8c driving arm limiting hole, 9 pressure plate, 9a pressure plate pin, 10 camshaft, 11 spring mechanism driving arm, 11a driving arm pin, 12 opening spring, 13 connection plate.

detailed description

As shown in Figure 1-5, it is a single permanent magnet circuit breaker with manual closing function, including a housing 1 and a magnetic brake mechanism 2 arranged in the housing 1. The magnetic brake mechanism 2 includes a body and a horizontal For the reciprocating moving iron core 3, the inside of the housing 1 is provided with a number of pillars 4 at intervals in the horizontal direction, the upper part of the pillar 4 is provided with a horizontal waist-shaped hole 7, and the middle part of the pillar 4 is provided with a vertical waist-shaped hole 7; the moving iron core 3 An iron core pin shaft 3a is provided at one end of the housing 1, and a support arm 6 is rotatably connected to the fixed shaft 5 whose axis is perpendicular to the moving iron core 3 in the housing 1. One end of the support arm 6 is provided with a waist-shaped hole 7, and the iron core pin shaft 3a is fitly inserted into the waist-shaped hole 7 of the support arm 6, and the other end of the support arm 6 is provided with a support arm pin shaft 6a, and the support arm pin shaft 6a is matched and inserted into the support arm limit hole 8a of the horizontal main beam 8, and the main beam 8 corresponds to Each pillar 4 is respectively provided with a main beam pin 8b and inserted into the horizontal waist-shaped hole 7 of the corresponding pillar 4, wherein a main beam pin 8b is hinged with an inclined pressure plate 9, and the bottom of the pressure plate 9 is provided with a pressure plate pin 9a and Insert into the vertical waist-shaped hole 7 corresponding to the pillar 4; the outer side corresponding to the other end of the moving iron core 3 in the housing 1 is provided with a camshaft 10; the housing 1 is also provided with a spring mechanism drive arm that can rotate around one end 11. The other end of the spring mechanism driving arm 11 is provided with a driving arm pin shaft 11a, which is correspondingly inserted into the driving arm limiting hole 8c of the main beam 8, and the spring mechanism driving arm 11 is connected with the spring mechanism. There are three pillars 4, and the pressing plate pins 9a are correspondingly inserted into the vertical waist-shaped holes 7 of the middle pillar 4. The main beam 8 is provided with an opening spring 12 through a connecting plate 13 .

When the device is working, the moving iron core 3 is driven by the magnetic force to reciprocate horizontally. When the moving iron core 3 moves to the left, the support arm 6 rotates clockwise around the fixed shaft 5, driving the main beam 8 to move to the right, and the pressure plate 9 moves around The main beam pin shaft 8b rotates clockwise, the pressure plate pin shaft 9a moves in the vertical waist hole 7 of the pillar 4, the pressure plate 9 is connected with the connecting rod, and the connecting rod drives the movable end of the vacuum interrupter to move through the insulating pull rod, making Opening action; when the moving iron core 3 moves to the right, the support arm 6 rotates counterclockwise around the fixed shaft 5, driving the main beam 8 to move to the left, the pressure plate 9 rotates counterclockwise around the main beam pin 8b, and the pressure plate pin 9a The vertical waist-shaped hole 7 of the pillar 4 moves inside, and the pressure plate 9 drives the moving end of the vacuum interrupter through the connecting rod and the insulating pull rod to make a closing action. In the case of power failure, the device can rotate the camshaft 10 to push the moving iron core 3 to move to the left, so that the main beam 8 moves to the right, and the vacuum interrupter performs an opening action; also in the case of power failure , the spring mechanism can be manually stretched to store energy, the spring mechanism shrinks, and the spring mechanism driving arm 11 drives the main beam 8 to move to the left, and the vacuum interrupter makes a closing action, which can deal with the situation of power failure and no backup power supply. limited by external conditions. The device has the advantages of simple structure, convenient use, cost saving and trouble-free occurrence.

The utility model is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the utility model, those skilled in the art can make some technical features based on the disclosed technical content without creative work. Replacement and deformation, these replacements and deformations are all within the protection scope of the present utility model.

Claims (3)

1. the single permanent-magnet breaker with closing by hand function, comprise housing and be arranged on the magnetic brake mechanism in housing, described magnetic brake mechanism comprises body and can do the dynamic iron core of horizontal reciprocating movement, it is characterized in that: described enclosure interior is interval with some pillars in the horizontal direction successively, each column upper section is provided with horizontal mounting hole, is provided with vertical mounting hole in the middle part of pillar, one end of described dynamic iron core is provided with iron core bearing pin, support arm is rotatably connected in described housing by axis and the perpendicular fixed axis of dynamic iron core, one end of support arm is provided with mounting hole, described iron core bearing pin coordinates in insertion support arm mounting hole, the other end of described support arm is provided with support arm bearing pin, described support arm bearing pin coordinates in the support arm spacing hole of the horizontal girder of insertion, the corresponding each pillar of described girder is respectively equipped with girder bearing pin and inserts in the horizontal mounting hole of respective strut, wherein a girder bearing pin is hinged with tilted platen, pressing plate bottom is provided with pressing plate bearing pin and inserts in the vertical mounting hole of corresponding pillar, in described housing, the outside corresponding with the dynamic iron core other end is provided with camshaft, also be provided with the spring mechanism actuating arm that can rotate around one end in described housing, the other end of spring mechanism actuating arm is provided with actuating arm bearing pin, and actuating arm bearing pin correspondence is inserted in the actuating arm spacing hole of girder, and described spring mechanism actuating arm is connected with spring mechanism.

2. a kind of single permanent-magnet breaker with closing by hand function according to claim 1, is characterized in that: described pillar is provided with 3, and pressing plate bearing pin correspondence is inserted in the vertical mounting hole of intermediate studdle.

3. a kind of single permanent-magnet breaker with closing by hand function according to claim 1 and 2, is characterized in that: described girder is provided with tripping spring by connecting plate.