CN210040049U

CN210040049U - Outdoor permanent magnet vacuum circuit breaker with emergency manual switching-on and switching-off operation function

Info

Publication number: CN210040049U
Application number: CN201921306266.3U
Authority: CN
Inventors: 王仁品; 王红祖; 刘智
Original assignee: Central Link Jiangsu Electric Power Engineering Co Ltd
Current assignee: Central Link Jiangsu Electric Power Engineering Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-02-07
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a belong to permanent magnetism vacuum circuit breaker technical field, specifically be an outdoor permanent magnetism vacuum circuit breaker with emergent manual divide-shut brake operation function, including controlling casing, insulating casing, upper wiring end, back wiring end, vacuum interrupter and permanent magnetism operating mechanism, all fixed mounting has insulating casing on the upper surface of controlling the casing and the back lateral wall, upper wiring end, back wiring end are installed respectively on the insulating casing of upside and rear side, vacuum interrupter fixed mounting is in the inner chamber of controlling the casing, the bottom activity of upper wiring end has cup jointed the movable contact rod, the front end fixed connection of back wiring end has the stationary contact rod, through the mode of permanent magnetism operating mechanism and manual operation, can all adapt to under outage and some circumstances; through the setting of location locking mechanism, can carry out the locking effect to the position of insulating pull rod, undertake the location that realizes location locking mechanism, realize circuit breaker separation and closed location.

Description

Outdoor permanent magnet vacuum circuit breaker with emergency manual switching-on and switching-off operation function

Technical Field

The utility model relates to a permanent magnetism vacuum circuit breaker technical field specifically is an outdoor permanent magnetism vacuum circuit breaker with emergent manual divide-shut brake operation function.

Background

The circuit breaker must be provided with a power source, i.e. an operating mechanism, which is understood to be a component of the circuit breaker. It is common practice to use spring operated mechanisms for vacuum circuit breakers that are spring operated. In these years, an operating mechanism for operating a circuit breaker by using a magnetic force of a magnet, which is referred to as a permanent magnet mechanism, has appeared.

The outdoor vacuum circuit breaker driven by the permanent magnet mechanism has the advantages of long service life of the wall spring mechanism, few transmission parts, good stability and the like, and is widely used as a sectionalizer and a tie switch in power distribution network lines in cities and rural areas. Because the permanent magnet circuit breakers adopted in the current market can only be switched on and switched off electrically, when the emergency power failure maintenance of a circuit and the feeding condition of a storage battery are met, the permanent magnet mechanism driving module cannot work, the construction and maintenance troubles are caused, and the safety of an electric system cannot be effectively and safely guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an outdoor permanent magnetism vacuum circuit breaker with emergent manual divide-shut brake operation function to solve the permanent magnetism circuit breaker majority of adopting on the existing market that proposes in the above-mentioned background art and can only electronic divide-shut brake, meetting the emergent power failure of circuit and overhauls, under the battery feed condition, permanent magnetic mechanism drive module can't work, causes the puzzlement of construction and maintenance, can not be effective, the safe problem of assurance electrical system.

In order to achieve the above object, the utility model provides a following technical scheme: an outdoor permanent magnet vacuum circuit breaker with an emergency manual switching-on/off operation function comprises a control shell, an insulating shell, an upper wiring end, a rear wiring end, a vacuum arc extinguish chamber and a permanent magnet operation mechanism, wherein the insulating shell is fixedly mounted on the upper surface and the rear side wall of the control shell, the upper wiring end and the rear wiring end are respectively mounted on the insulating shell on the upper side and the rear side, the vacuum arc extinguish chamber is fixedly mounted in an inner cavity of the control shell, a movable contact rod is sleeved at the bottom end of the upper wiring end, a static contact rod is fixedly connected with the front end of the rear wiring end, the movable contact rod and the static contact rod both extend to the inner cavity of the vacuum arc extinguish chamber and are opposite in position, the permanent magnet operation mechanism is fixedly mounted on the right side wall of the inner cavity of the control shell, the left end of a movable iron core of the permanent magnet operation mechanism is connected with an insulating pull rod through a connecting pin, the left end of, the left end of insulating pull rod has cup jointed manual deciliter handle, be provided with the rand on the insulating pull rod, and the position of rand is corresponding with vacuum interrupter's position, the upside of insulating pull rod is connected with the turning arm through the connecting pin, the outer wall connection of connecting pin and movable contact rod is passed through to the upper end of turning arm, be provided with location locking mechanism between the left side of insulating pull rod and the inner wall left side of controlling the casing, location locking mechanism includes two limit stop, two of fixing connection on the inner wall of controlling the casing through the screw spacing stop symmetry sets up the upper and lower both sides at insulating pull rod, the embedded groove has been seted up to downside symmetry on the outer wall of insulating pull rod, be provided with supporting spring in the embedded groove, supporting spring's outer end is connected with the flexible head.

Preferably, the insulating housing is a ceramic insulating housing.

Preferably, the left side and the right side of the outer wall of the insulating pull rod are respectively sleeved with a linear bearing, and the linear bearings on the two sides are respectively connected with the left side wall of the control shell and the left side wall of the permanent magnet operating mechanism.

Preferably, one side wall of the limit stop close to the telescopic head is arc-shaped.

Preferably, the number of the upper terminals, the number of the rear terminals, the number of the vacuum arc-extinguishing chambers and the number of the clamping rings are the same and are not less than 2.

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

1) the permanent magnet control mechanism and the manual operation mode can adapt to the conditions of power failure and points;

2) through the setting of location locking mechanism, can carry out the locking effect to the position of insulating pull rod, undertake the location that realizes location locking mechanism, realize circuit breaker separation and closed location.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the control housing of the present invention;

FIG. 3 is a schematic right sectional view of the present invention;

fig. 4 is a schematic top view of the insulated pull rod of the present invention;

fig. 5 is the structural schematic diagram of the positioning locking mechanism of the present invention.

In the figure: the device comprises a control shell 1, an insulating shell 2, an upper terminal 3, a rear terminal 4, a vacuum arc-extinguishing chamber 5, a permanent magnet operating mechanism 6, an insulating pull rod 7, a manual opening and closing handle 8, a retainer ring 9, a crank arm 10, a positioning locking mechanism 11, a limit stop 111, a supporting spring 112 and a telescopic head 113.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-5, the present invention provides a technical solution: an outdoor permanent magnet vacuum circuit breaker with an emergency manual switching-on and switching-off operation function comprises a control shell 1, an insulating shell 2, an upper wiring terminal 3, a rear wiring terminal 4, a vacuum arc extinguish chamber 5 and a permanent magnet operating mechanism 6, wherein the upper wiring terminal 3 and the rear wiring terminal 4 are inserted into the control shell 1, the insulating shell 2 is coated on the upper wiring terminal 3 and the rear wiring terminal 4 to play a role in protection, the permanent magnet operating mechanism 6 adopts an existing permanent magnet mechanism, and the permanent magnet operating mechanism 6 comprises a permanent magnet, a movable iron core, a reset spring, a switching-on and switching-off coil and the like;

the upper surface and the rear side wall of the control shell 1 are fixedly provided with insulating shells 2, the insulating shells 2 on the upper side and the rear side are respectively provided with an upper wiring terminal 3 and a rear wiring terminal 4, and the insulating shells 2 are arranged on the upper wiring terminal 3 and the rear wiring terminal 4 through the outer walls, so that the insulating protection effect is achieved;

the vacuum arc extinguish chamber 5 is fixedly arranged in an inner cavity of the control shell 1, a movable contact rod is movably sleeved at the bottom end of the upper wiring end 3, a fixed contact rod is fixedly connected to the front end of the rear wiring end 4, the movable contact rod and the fixed contact rod extend to the inner cavity of the vacuum arc extinguish chamber 5 and are opposite in position, and the upper wiring end 3 and the movable contact rod can move relative to each other and can be contacted to realize the transmission of electric energy by separating or contacting the movable contact rod relative to the fixed contact rod through the movable contact rod;

the permanent magnet operating mechanism 6 is fixedly installed on the right side wall of the inner cavity of the control shell 1, the left end of a moving iron core of the permanent magnet operating mechanism 6 is connected with an insulating pull rod 7 through a connecting pin, the left end of the insulating pull rod 7 extends to the left side wall of the control shell 1 and penetrates through the left side wall of the control shell 1, the left end of the insulating pull rod 7 is sleeved with a manual opening and closing handle 8, and the separation and closing functions of the electric and manual dual-control circuit breaker are realized through the cooperation between the manual opening and closing handle 8 and the permanent magnet operating mechanism 6;

the insulating pull rod 7 is provided with a clamping ring 9, the position of the clamping ring 9 corresponds to the position of the vacuum arc-extinguishing chamber 5, the clamping ring 9 is positioned outside the vacuum arc-extinguishing chamber 5 through the arrangement of the clamping ring 9, the transverse width of the clamping ring 9 is wide, the clamping ring can not be contacted with the vacuum arc-extinguishing chamber 5 when moving, the axial line of the insulating pull rod 7 can be regulated and controlled to be intersected with the axial direction of the vacuum arc-extinguishing chamber 5, and therefore the insulating pull rod 7 can control the movable contact rod;

the upper side of the insulating pull rod 7 is connected with a crank arm 10 through a connecting pin, the upper end of the crank arm 10 is connected with the outer wall of the movable contact rod through the connecting pin, the insulating pull rod 7 moves leftwards or rightwards to drive the bottom end of the crank arm 10 to pull leftwards or rightwards, so that the upper end position of the crank arm 10 longitudinally moves upwards or downwards, the movable contact rod can be driven to move, and the separating and closing effects are realized;

a positioning locking mechanism 11 is arranged between the left side of the insulating pull rod 7 and the left side of the inner wall of the control shell 1, the positioning locking mechanism 11 comprises two limit stops 111 fixedly connected on the inner wall of the control shell 1 through screws, the two limit stops 111 are symmetrically arranged on the upper side and the lower side of the insulating pull rod 7, embedded grooves are symmetrically formed in the upper side and the lower side of the outer wall of the insulating pull rod 7, a supporting spring 112 is arranged in each embedded groove, the outer end of the supporting spring 112 is connected with a telescopic head 113, the telescopic head 113 is clamped on the left side or the right side of the limit stop 111, the telescopic head 113 is locked and positioned through the limiting effect of the limit stop 111, when the insulating pull rod 7 is pulled, the insulating pull rod 7 drives the telescopic head 113 to move, the telescopic head 113 is extruded to retract into the embedded groove when the telescopic head 113 is contacted with the limit stop 111, the supporting spring 112 is compressed, the telescopic head 113 extends under the supporting action of the supporting spring 112, and the limiting effect is achieved through the blocking action between the telescopic head 113 and the limit stop 111, so that the insulating pull rod 7 is not easy to move automatically.

The insulating housing 2 is a ceramic insulating housing.

The linear bearing has all been cup jointed to the outer wall left and right sides of insulating pull rod 7, and the linear bearing of both sides respectively with control the left side wall of casing 1 and the left side wall connection of permanent magnetism operating mechanism 6, through linear bearing's setting for insulating pull rod 7's removal is comparatively smooth, reduces frictional force.

The limit stopper 111 and the telescopic head 113 are both arc-shaped on the side wall close to each other, which facilitates the movement between the limit stopper 111 and the telescopic head 113.

Go up wiring end 3, back wiring end 4, vacuum interrupter 5 and rand 9 quantity the same and all be not less than 2, set for quantity according to the user demand, can a plurality of vacuum interrupter 5 of simultaneous control.

The working principle is as follows: two terminals which need to be connected with a circuit breaker are respectively connected to an upper terminal 3 and a rear terminal 4, an insulating pull rod 7 is electrically driven to push leftwards or pull rightwards through a permanent magnet operating mechanism 6, so that the insulating pull rod 7 drives the bottom end of a connecting lever 10 to move leftwards or rightwards, and as the upper end of the connecting lever 10 can only move upwards or downwards longitudinally, a movable contact rod is driven to ascend or descend through the upper end of the connecting lever 10, so that the movable contact rod and a fixed contact rod in a vacuum arc extinguish chamber 5 are separated or closed;

when the condition that the electric motor can not normally drive appears, make insulating pull rod 7 lateral shifting through manual pulling manual deciliter handle 8, reach the separation or the closure effect of circuit breaker, through the locking effect of location locking mechanism 11 for insulating pull rod 7 is difficult to remove by oneself after removing.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; 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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an outdoor permanent magnetism vacuum circuit breaker with emergent manual divide-shut brake operation function, is including controlling casing (1), insulating casing (2), last wiring end (3), back wiring end (4), vacuum interrupter (5) and permanent magnetism operating mechanism (6), its characterized in that: the upper surface and the rear side wall of the control shell (1) are fixedly provided with an insulating shell (2), the upper side and the rear side of the insulating shell (2) are respectively provided with an upper wiring terminal (3) and a rear wiring terminal (4), the vacuum arc-extinguishing chamber (5) is fixedly arranged in an inner cavity of the control shell (1), the bottom end of the upper wiring terminal (3) is movably sleeved with a movable contact rod, the front end of the rear wiring terminal (4) is fixedly connected with a static contact rod, the movable contact rod and the static contact rod both extend to the inner cavity of the vacuum arc-extinguishing chamber (5) and are opposite in position, the permanent magnet operating mechanism (6) is fixedly arranged on the right side wall of the inner cavity of the control shell (1), the left end of a movable iron core of the permanent magnet operating mechanism (6) is connected with an insulating pull rod (7) through a connecting pin, the left end of the insulating pull rod (7) extends to the left side wall of the control shell (1) and, the left end of the insulating pull rod (7) is sleeved with a manual opening and closing handle (8), the insulating pull rod (7) is provided with a clamping ring (9), the position of the clamping ring (9) corresponds to the position of the vacuum arc-extinguishing chamber (5), the upper side of the insulating pull rod (7) is connected with a connecting lever (10) through a connecting pin, the upper end of the connecting lever (10) is connected with the outer wall of the movable contact rod through the connecting pin, a positioning locking mechanism (11) is arranged between the left side of the insulating pull rod (7) and the left side of the inner wall of the control shell (1), the positioning locking mechanism (11) comprises two limit stop blocks (111) which are fixedly connected on the inner wall of the control shell (1) through screws, the two limit stop blocks (111) are symmetrically arranged on the upper side and the lower side of the insulating pull rod (7), and an embedded groove is symmetrically arranged on the lower side of the outer wall of, a supporting spring (112) is arranged in the embedded groove, and the outer end of the supporting spring (112) is connected with a telescopic head (113).

2. The outdoor permanent magnet vacuum circuit breaker with the emergency manual switching-on and switching-off operation function according to claim 1, characterized in that: the insulating shell (2) is a ceramic insulating shell.

3. The outdoor permanent magnet vacuum circuit breaker with the emergency manual switching-on and switching-off operation function according to claim 1, characterized in that: linear bearings are sleeved on the left side and the right side of the outer wall of the insulating pull rod (7), and the linear bearings on the two sides are connected with the left side wall of the control shell (1) and the left side wall of the permanent magnet operating mechanism (6) respectively.

4. The outdoor permanent magnet vacuum circuit breaker with the emergency manual switching-on and switching-off operation function according to claim 1, characterized in that: the limit stop (111) and the telescopic head (113) are both arc-shaped on one side wall.

5. The outdoor permanent magnet vacuum circuit breaker with the emergency manual switching-on and switching-off operation function according to claim 1, characterized in that: go up wiring end (3), back wiring end (4), vacuum interrupter (5) and rand (9) quantity the same and all be no less than 2.