CN210722935U

CN210722935U - Middle cover for circuit breaker

Info

Publication number: CN210722935U
Application number: CN201921694996.5U
Authority: CN
Inventors: 刘生先
Original assignee: Shanghai Good Faith Icest Co ltd
Current assignee: Shanghai Good Faith Icest Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-06-09
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a well lid for circuit breaker belongs to circuit breaker technical field, including insulating lid, a pedestal, the front end surface of insulating lid is provided with the lid that turns, and the inside interlude of the lid that turns has the connecting axle, the lid that turns passes through connecting axle and insulating lid movable mounting, it has the part groove to open on the outer wall of lid to turn, the screw hole, and be equipped with movable buckle spare in the part groove, the internal rotation of base installs the screw, and the below position department that is close to the screw is provided with the explosion chamber, one side position department that is close to the explosion chamber is provided with the static contact, one side position department that is close to the static contact is provided with the moving contact, the below position department that is close to the moving contact is provided with the release chamber, and one side position department that is close to the release chamber is provided with operating handle, the. The utility model discloses have heat-conduction radiating function, promote the security to but have flip structure, convenient to use when dustproof splashproof water.

Description

Middle cover for circuit breaker

Technical Field

The utility model relates to a circuit breaker field, in particular to well lid for circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breaker divide into high-voltage circuit breaker and low-voltage circuit breaker according to its application range, and the circuit breaker generally comprises contact system, arc extinguishing system, operating device, release, shell etc. when the short circuit, reaction spring is overcome in the magnetic field that the heavy current produced, and release pulling operating device moves, and the instantaneous tripping operation of switch, when transshipping, the electric current grow, calorific capacity aggravation, bimetallic strip warp to certain degree pushing mechanism action, and the well lid is the bearing casing of circuit breaker promptly.

The existing circuit breaker has certain defects when in use, does not have the function of heat conduction and heat dissipation, cannot improve the safety, does not have a turnover structure, cannot be conveniently used while preventing dust and splashing, and needs further improvement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a well lid for circuit breaker can effectively solve the problem in the background art.

The utility model realizes the above purpose by the following technical proposal, a middle cover for a circuit breaker, which comprises an insulating cover and a base, wherein the front end outer surface of the insulating cover is provided with a turning cover, a connecting shaft is inserted in the turning cover, the turning cover is movably installed with the insulating cover by the connecting shaft, the outer wall of the turning cover is provided with a part groove and a threaded hole, a movable buckling part is arranged in the part groove, the base is internally and rotatably provided with an upper screw, an arc extinguish chamber is arranged at the position close to the lower part of the upper screw, a static contact is arranged at the position close to one side of the arc extinguish chamber, a moving contact is arranged at the position close to one side of the static contact, a release cavity is arranged at the position close to the lower part of the moving contact, an operating handle is arranged at the position close to one side of the release cavity, a lower screw is arranged at the position close to the operating, the bottom of base is rotatory installs the heat pipe, just the one end of heat pipe and the contact of lower screw, the one end welding of heat pipe has the heat dissipation burst.

Preferably, the upper screw and the lower screw rotate inside the insulating cover and the base at the same time to complete the fixed installation of the insulating cover and the base.

Preferably, the movable buckling piece can move up and down in a part groove of the turning cover and can be butted with a buckling groove on the inner wall of the base when moving down.

Preferably, the insulating cover and the base are both made of a PVC flame-retardant material, and the outer surfaces of the insulating cover and the base are coated with an anti-oxidation anti-corrosion layer.

Preferably, the number of the heat dissipation fragments is four, and the heat dissipation fragments are uniformly distributed on the outer surface of the heat conduction pipe.

Preferably, the connecting shaft is inserted into the insulating cover and the turning cover simultaneously, and the turning cover can realize reverse operation.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the lower extreme of heat pipe rotatory installation and base, the one end of heat pipe contacts with lower screw, because metal heat conduction speed is very fast, when the inside heat that produces of circuit breaker, the temperature of lower screw is compared in the higher heat transfer rate of other part temperature values faster, through contacting with the heat pipe, the quick heat transfer gives the heat pipe with the heat, installed the heat dissipation burst on the heat pipe, leave the clearance between the heat dissipation burst, the contact surface of air has been increased, consequently, the radiating rate has been increased, the security is promoted.

2. The connecting axle is worn too insulating the lid simultaneously, turn and cover in, make to turn and cover and can freely overturn, when turning the lid and be the closure state with the base, activity buckle spare can be in the part inslot of the lid that turns about moving, can dock with the catching groove on the base inner wall during downward activity, turn the lid this moment and play dustproof splashproof effect, when upwards lifting movable buckle spare, it shifts out from the catching groove, it can upwards overturn to turn the lid, convenience of customers carries out operation processing to inside device, convenient to use when dustproof splashproof.

Drawings

Fig. 1 is an expanded view of the present invention.

Fig. 2 is a view for completing the installation of the present invention.

Fig. 3 is a schematic diagram of the turning cover of the present invention.

In the figure: 1. the device comprises an insulating cover, 2, a base, 3, an upper screw, 4, an arc extinguish chamber, 5, a static contact, 6, a movable contact, 7, a release cavity, 8, an operating handle, 9, a lower screw, 10, a heat pipe, 11, a heat dissipation fragment, 12, a turning cover, 13, a connecting shaft, 14, a component groove, 15, a movable fastener, 16 and a threaded hole.

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, a middle cover for a circuit breaker includes an insulating cover 1, a base 2, a flip cover 12 disposed on an outer surface of a front end of the insulating cover 1, a connecting shaft 13 inserted into the flip cover 12, the flip cover 12 movably mounted with the insulating cover 1 through the connecting shaft 13, a component slot 14 and a threaded hole 16 formed on an outer wall of the flip cover 12, a movable fastener 15 installed in the component slot 14, an upper screw 3 rotatably installed in the base 2, an arc extinguish chamber 4 disposed near a lower position of the upper screw 3, a static contact 5 disposed near one side of the arc extinguish chamber 4, a moving contact 6 disposed near one side of the static contact 5, a release cavity 7 disposed near a lower position of the moving contact 6, an operating handle 8 disposed near one side of the release cavity 7, and a lower screw 9 disposed near a lower position of the operating handle 8, the bottom end of the base 2 is rotatably installed with a heat pipe 10, and one end of the heat pipe 10 contacts with the lower screw 9, and one end of the heat pipe 10 is welded with a heat dissipation slice 11.

The upper screw 3 and the lower screw 9 rotate inside the insulating cover 1 and the base 2 at the same time to complete the fixed installation of the insulating cover 1 and the base 2; the movable fastener 15 can move up and down in the part groove 14 of the turning cover 12, can be butted with a fastening groove on the inner wall of the base 2 to complete the limiting and fixing effect when moving downwards, and when the movable fastener 15 is lifted upwards, the movable fastener 15 is moved out of the fastening groove, and the limiting and fixing effect is relieved at the moment, so that the turning cover 12 can be turned and opened; the insulating cover 1 and the base 2 are both made of PVC flame-retardant materials, and the outer surfaces of the insulating cover 1 and the base 2 are coated with anti-oxidation anti-corrosion layers; the number of the heat dissipation fragments 11 is four, and the heat dissipation fragments 11 are uniformly distributed on the outer surface of the heat conduction pipe 10; the connecting shaft 13 is inserted into the insulating cover 1 and the flip cover 12 at the same time, and the flip cover 12 can realize reverse operation.

The utility model discloses a theory of operation: the insulating cover 1 is fixedly installed with the base 2 through an upper screw 3 and a lower screw 9, a heat conducting pipe 10 is rotatably installed at the lower end of the base 2, one end of the heat conducting pipe 10 is contacted with the lower screw 9, when heat is generated in the breaker due to the high heat conducting speed of metal, the temperature of the lower screw 9 is higher than the temperature value of other parts and has higher heat conducting speed, the heat is rapidly transferred to the heat conducting pipe 10 through the contact with the heat conducting pipe 10, the heat radiating fragments 11 are installed on the heat conducting pipe 10, gaps are reserved between the heat radiating fragments 11, the contact surface of air is increased, so the heat radiating speed is increased, a connecting shaft 13 simultaneously penetrates through the insulating cover 1 and the turning cover 12, so that the turning cover 12 can be freely turned over, when the turning cover 12 is in a closed state with the base 2, a movable fastener 15 can move up and down in a part groove 14 of the turning cover 12, and can be in, turning lid 12 this moment and playing dustproof splashproof effect of water, when upwards lifting movable buckle spare 15 and drawing, it shifts out from catching groove department, turns lid 12 and can upwards overturn, and convenience of customers carries out operation and treatment to inside device, and is more practical.

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. A middle cover for a circuit breaker is characterized in that: the novel electric soldering iron comprises an insulating cover (1) and a base (2), wherein a turning cover (12) is arranged on the outer surface of the front end of the insulating cover (1), a connecting shaft (13) is inserted into the turning cover (12), the turning cover (12) is movably mounted with the insulating cover (1) through the connecting shaft (13), a part groove (14) and a threaded hole (16) are formed in the outer wall of the turning cover (12), a movable buckling part (15) is arranged in the part groove (14), an upper screw (3) is rotatably mounted in the base (2), an arc extinguish chamber (4) is arranged at a position close to the lower part of the upper screw (3), a static contact (5) is arranged at a position close to one side of the arc extinguish chamber (4), a moving contact (6) is arranged at a position close to one side of the static contact (5), and a release cavity (7) is arranged at a position close to the lower part of the moving contact (6, and be close to one side position department of release chamber (7) is provided with operating handle (8), is close to operating handle's (8) below position department is provided with down screw (9), heat pipe (10) are installed in the bottom rotation of base (2), just the one end and the contact of lower screw (9) of heat pipe (10), the one end welding of heat pipe (10) has heat dissipation and divides piece (11).

2. The middle cover for a circuit breaker according to claim 1, wherein: the upper screw (3) and the lower screw (9) rotate in the insulating cover (1) and the base (2) simultaneously to complete the fixed installation of the insulating cover (1) and the base (2).

3. The middle cover for a circuit breaker according to claim 1, wherein: the movable buckling piece (15) can move up and down in the part groove (14) of the turning cover (12) and can be butted with the buckling groove on the inner wall of the base (2) when moving down.

4. The middle cover for a circuit breaker according to claim 1, wherein: the insulating cover (1) and the base (2) are both made of PVC flame-retardant materials, and the outer surfaces of the insulating cover (1) and the base (2) are coated with anti-oxidation anti-corrosion layers.

5. The middle cover for a circuit breaker according to claim 1, wherein: the number of the heat dissipation sub-fins (11) is four, and the heat dissipation sub-fins (11) are uniformly distributed on the outer surface of the heat conduction pipe (10).

6. The middle cover for a circuit breaker according to claim 1, wherein: the connecting shaft (13) is inserted into the insulating cover (1) and the turning cover (12) at the same time, and the turning cover (12) can realize reverse operation.