CN215815746U

CN215815746U - Miniature circuit breaker of high-speed arc extinguishing

Info

Publication number: CN215815746U
Application number: CN202122226431.8U
Authority: CN
Inventors: 罗万周; 郑佑龙; 吴康; 汪义高
Original assignee: Zhejiang Lankai Electric Co ltd
Current assignee: Zhejiang Lankai Electric Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-11
Anticipated expiration: 2031-09-14

Abstract

The utility model provides a miniature circuit breaker for high-speed arc extinction, which relates to the technical field of circuit breakers and comprises a base and an arc extinction chamber arranged in the base, wherein an air leakage opening is formed in one side, which is positioned in the arc extinction chamber, of the base, a positioning piece for positioning and installing the base and an external object is arranged on the outer wall of one side, which is close to the air leakage opening, of the base, the positioning piece comprises a positioning box fixed on the surface of one side of the base and a positioning plate arranged in the positioning box, a transmission piece for transmitting the positioning plate to the outside of the positioning box is arranged in the positioning box, a driving piece for driving the transmission piece is also arranged outside the positioning box, the driving piece drives the positioning plate to move to the outside of the positioning box through driving the transmission piece, and the positioning plate is used for positioning and installing the base and the external object. The base is aligned with an external object, subsequent installation is facilitated, and the installation efficiency of workers is greatly improved.

Description

Miniature circuit breaker of high-speed arc extinguishing

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a miniature circuit breaker with high-speed arc extinction.

Background

The circuit breaker is a switching device capable of breaking and connecting a load circuit and breaking a fault circuit, preventing an accident from being enlarged, and ensuring safe operation, and among them, the circuit breaker is suitable for use in various places such as industries, businesses, high-rise buildings, and residential houses, and is also one of important distribution electric appliances in a low-voltage power grid system.

The circuit breaker often needs to assemble between the outside article in the use to realize the function of control and multiple protect function of collection, nevertheless in the group with the in-process, can't guarantee to align between base and the outside article, inconvenient subsequent installation, thereby reduce staff's installation effectiveness, wait to further improve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a small-sized circuit breaker capable of extinguishing arc at high speed, aiming at the defects of the prior art.

The utility model solves the technical problems through the following technical means:

miniature circuit breaker of high-speed arc extinguishing, include the base and set up in the inside explosion chamber of base, the mouth that loses heart has been seted up to the inside and one side that is located the explosion chamber of base, one side outer wall that the base is close to the mouth that loses heart is provided with the setting element that is used for base and outside article to advance line location installation, the setting element is including being fixed in the location box of base side surface and setting up in the inside locating plate of location box, the inside of location box is provided with and is used for going on driven driving piece to the locating plate transmission to the location box outside, the outside of location box still is provided with and is used for carrying out driven driving piece to the driving piece, and the driving piece drives the outside that the locating plate removed to the location box through the drive driving piece, and the locating plate is used for advancing line location installation to base and outside article.

Further, the driving medium includes that the transmission sets up in the threaded rod of the output of driving piece and the ball nut on threaded rod surface is located to the movable sleeve, the locating plate sets up in one side of ball nut.

Furthermore, the setting element still is including being fixed in the regulating box of ball nut side surface, the inboard of regulating box is provided with the extension piece, the groove of accomodating has been seted up to a side surface of extension piece, the locating plate passes through the torsional spring and rotates and set up in the inside of accomodating the groove.

Further, the junction of extending piece and regulating box is provided with the elastic component, the elastic component includes the spring housing, the spring housing sets up in the one end surface that the piece is close to the driving piece that extends, the elastic component is still including setting up in the flexible post of extending piece and regulating box junction, and the outside of flexible post is located to the spring housing cover, one side of regulating box is provided with carries out spacing lid stopper to the piece that extends.

Further, the explosion chamber has seted up the mouth that loses heart for the opposite side of gas vent, the threaded rod is close to the surface of driving piece and is provided with radiator fan, and radiator fan and the mouth that loses heart are in same vertical water line, the louvre that a plurality of runs through is seted up on the surface of location box, and a plurality of louvre that is close to the base extends to the inner chamber of base.

Further, the surface of base is provided with a plurality of mounting panel, the mounting hole has been seted up on the mounting panel, and the inside of mounting hole is provided with the screw.

The utility model has the beneficial effects that:

1. the driving piece is started through the arranged driving piece, the driving piece drives the positioning plate to move to the outside of the positioning box through the driving transmission piece, the positioning plate abuts against one side of an external object, and the base abuts against the other side of the object, so that the base is aligned with the external object, the subsequent installation is facilitated, and the installation efficiency of workers is greatly improved;

2. when driving piece drive driving medium pivoted, can drive radiator fan and rotate and set up the louvre that runs through in a plurality of on the surface of location box, the heat that will lose heart and send out dispels the heat, further improves the heat-sinking capability of base for the explosion chamber gives vent to anger the big improvement of mode, thereby further improves the high-speed arc extinguishing capability of circuit breaker, and uses a driving piece, the energy saving reduces use cost.

Drawings

FIG. 1 is an internal cross-sectional view of a base of the present invention;

FIG. 2 is a schematic view of a connection between a positioning member and a base according to the present invention.

In the figure: 1. a base; 2. an arc extinguishing chamber; 3. an exhaust port; 4. an air escape opening; 5. a positioning member; 501. a positioning box; 502. an adjusting box; 503. an extension block; 504. positioning a plate; 6. a drive member; 7. a transmission member; 701. a threaded rod; 702. a ball nut; 8. a heat radiation fan; 801. heat dissipation holes; 9. an elastic member; 901. a spring housing; 902. a telescopic column.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

As shown in fig. 1 and fig. 2, the miniature circuit breaker for high-speed arc extinction of the present embodiment includes a base 1 and an arc extinguish chamber 2 disposed inside the base 1, wherein an air release opening 4 is disposed inside the base 1 and at one side of the arc extinguish chamber 2, the other side of the arc extinguish chamber 2 is provided with an air outlet 3, the outer wall of one side of the base 1 close to the air outlet 4 is provided with a positioning piece 5 for positioning and installing the base 1 and an external object, the positioning piece 5 comprises a positioning box 501 fixed on the surface of one side of the base 1 and a positioning plate 504 arranged inside the positioning box 501, a transmission piece 7 for transmitting the positioning plate 504 to the outside of the positioning box 501 is arranged inside the positioning box 501, the outside of the positioning box 501 is also provided with a driving piece 6 for driving the transmission piece 7, the driving piece 6 drives the positioning plate 504 to move to the outside of the positioning box 501 through the driving transmission piece 7, and the positioning plate 504 is used for positioning and installing the base 1 and the external object;

during the use, explosion chamber 2 is after absorbing the electric arc heat, produced gas is given vent to anger through gas vent 3 and disappointing mouth 4, thereby guarantee the high-speed arc extinguishing ability of circuit breaker, when installing base 1 and outside article, outside article such as air-break circuit breaker etc. need align them and assemble, consequently need the location in advance, at first start driving piece 6, driving piece 6 drives locating plate 504 through drive transmission spare 7 and removes to the outside of location box 501, locating plate 504 supports one side of outside article, base 1 supports the opposite side of article, thereby align between base 1 and the outside article, make things convenient for subsequent installation, staff's installation effectiveness has been improved greatly.

As shown in fig. 2, the transmission member 7 includes a threaded rod 701 disposed at the output end of the driving member 6, and a ball nut 702 movably sleeved on the surface of the threaded rod 701, and the positioning plate 504 is disposed at one side of the ball nut 702;

when the positioning box is used, the driving piece 6 drives the threaded rod 701 to rotate, the ball nut 702 movably sleeved on the surface of the threaded rod 701 drives the positioning plate 504 to move, and finally the positioning plate is moved out of the positioning box 501, so that time and labor are saved.

As shown in fig. 2, the positioning member 5 further includes an adjusting box 502 fixed on a side surface of the ball nut 702, an extending block 503 is disposed inside the adjusting box 502, a receiving slot is disposed on a side surface of the extending block 503, and the positioning plate 504 is rotatably disposed inside the receiving slot through a torsion spring;

through the adjusting box 502 that sets up, will extend the piece 503 and accomodate in the inside of adjusting box 502, locating plate 504 is accomodate in the recess that extends the piece 503 and offers, saves occupation of land space, increases the use length of setting element 5 again simultaneously.

As shown in fig. 2, an elastic member 9 is disposed at a connection position of the extension block 503 and the adjusting box 502, the elastic member 9 includes a spring sleeve 901, the spring sleeve 901 is disposed on a surface of one end of the extension block 503 close to the driving member 6, the elastic member 9 further includes a telescopic column 902 disposed at a connection position of the extension block 503 and the adjusting box 502, the spring sleeve 901 is sleeved outside the telescopic column 902, and a cover plug for limiting the extension block 503 is disposed at one side of the adjusting box 502;

when the telescopic column 902 is used, the cover plug is opened, the extension block 503 is ejected from the inside of the adjusting box 502 by the elastic force of the spring sleeve 901, and the arranged spring sleeve 901 guides the moving direction of the telescopic column 902 to prevent the position deviation.

As shown in fig. 2, a heat dissipation fan 8 is disposed on the surface of the threaded rod 701 close to the driving member 6, the heat dissipation fan 8 and the air release opening 4 are located on the same vertical horizontal line, a plurality of through heat dissipation holes 801 are disposed on the surface of the positioning box 501, and the plurality of heat dissipation holes 801 close to the base 1 extend to the inner cavity of the base 1;

when the driving medium 7 rotates, it can drive the heat dissipation fan 8 to rotate, the heat that the mouth 4 of will disappointing sent out dispels the heat, sets up the louvre 801 that runs through in a plurality of on the surface of location box 501, further improves the heat-sinking capability of base 1 for the explosion chamber 2 gives vent to anger the improvement greatly of the mode, thereby further improves the high-speed arc extinguishing capability of circuit breaker.

As shown in fig. 1, a plurality of mounting plates are arranged on the surface of a base 1, mounting holes are formed in the mounting plates, and screws are arranged in the mounting holes;

the surface of the base 1 is provided with a mounting plate, a mounting hole is formed in the mounting plate, a screw is arranged in the mounting hole, and the base 1 and an external object can be conveniently positioned and mounted in a mode of matching the mounting hole and the screw.

The working principle of the miniature circuit breaker for high-speed arc extinction of the embodiment is as follows:

when the base 1 and an external object are installed, the external object such as an air-break circuit breaker and the like needs to be aligned and assembled, so that the external object needs to be positioned in advance, the driving piece 6 is started, the driving piece 6 drives the threaded rod 701 to rotate, the ball nut 702 movably sleeved on the surface of the threaded rod 701 drives the adjusting box 502 to move to the outside of the positioning box 501 through the driving transmission piece 7, the cover plug is taken down, the extending block 503 is popped out from the inside of the adjusting box 502 by means of the elastic force of the spring sleeve 901, the positioning plate 504 rotates out of the inside of the groove due to the elastic force of the torsion spring and props against one side of the external object, and the base 1 props against the other side of the object, so that the base 1 and the external object are aligned, subsequent installation is convenient, and the installation efficiency of workers is greatly improved;

when driving piece 6 drive transmission spare 7 rotates, can drive radiator fan 8 and rotate and set up the louvre 801 that runs through in a plurality of on the surface of location box 501, dispel the heat that mouthful 4 sent out, further improve the heat-sinking capability of base 1, make the explosion chamber 2 give vent to anger the big improvement of mode, thereby further improve the high-speed arc extinguishing capability of circuit breaker, and use a driving piece 6, the energy saving reduces use cost. The driving member 6 in this embodiment is a motor, and the model is: Y80M 1-2; the type of the heat radiation fan 8 is as follows: JFC-060A.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. Miniature circuit breaker of high-speed arc extinguishing, including base (1) and set up in the inside explosion chamber (2) of base (1), disappointing mouth (4) have been seted up to the inside of base (1) and the one side that is located explosion chamber (2), its characterized in that, base (1) is close to one side outer wall of disappointing mouth (4) and is provided with setting element (5) that are used for base (1) and outside article to advance line location installation, setting element (5) are including being fixed in location box (501) of base (1) side surface and setting up in locating plate (504) of location box (501) inside, the inside of location box (501) is provided with and is used for driving piece (7) outside locating plate (504) to location box (501), the outside of location box (501) still is provided with and is used for carrying out driven driving piece (6) to driving piece (7), and driving piece (6) drive locating plate (504) through driving piece (7) and move to the locating plate (501) And the positioning plate (504) is used for positioning and mounting the base (1) and an external object.

2. The miniature circuit breaker with high-speed arc extinction according to claim 1, wherein the transmission member (7) comprises a threaded rod (701) which is arranged at the output end of the driving member (6) in a transmission manner and a ball nut (702) which is movably sleeved on the surface of the threaded rod (701), and the positioning plate (504) is arranged at one side of the ball nut (702).

3. The miniature circuit breaker with high-speed arc extinction according to claim 2, wherein the positioning member (5) further comprises an adjusting box (502) fixed on one side surface of the ball nut (702), an extending block (503) is arranged inside the adjusting box (502), a receiving groove is formed on one side surface of the extending block (503), and the positioning plate (504) is rotatably arranged inside the receiving groove through a torsion spring.

4. The miniature circuit breaker with high-speed arc extinction according to claim 3, wherein an elastic member (9) is arranged at the connection position of the extension block (503) and the adjusting box (502), the elastic member (9) comprises a spring sleeve (901), the spring sleeve (901) is arranged on the surface of one end, close to the driving member (6), of the extension block (503), the elastic member (9) further comprises a telescopic column (902) arranged at the connection position of the extension block (503) and the adjusting box (502), the spring sleeve (901) is sleeved outside the telescopic column (902), and a cover plug for limiting the extension block (503) is arranged on one side of the adjusting box (502).

5. The miniature circuit breaker with high-speed arc extinction according to claim 2, wherein the arc extinguishing chamber (2) is opened with an air release opening (4) relative to the other side of the exhaust port (3), the surface of the threaded rod (701) close to the driving member (6) is provided with a heat radiation fan (8), and the heat radiation fan (8) and the air release opening (4) are on the same vertical horizontal line, the surface of the positioning box (501) is opened with a plurality of penetrating heat dissipation holes (801), and a plurality of heat dissipation holes (801) close to the base (1) extend to the inner cavity of the base (1).

6. A miniature circuit breaker with high-speed arc extinction according to claim 1, wherein a plurality of mounting plates are arranged on the surface of the base (1), mounting holes are arranged on the mounting plates, and screws are arranged inside the mounting holes.