CN114220710A

CN114220710A - Circuit breaker

Info

Publication number: CN114220710A
Application number: CN202111559984.3A
Authority: CN
Inventors: 马斌
Original assignee: Jinan Zhonghengguang Electromechanical Technology Center
Current assignee: Jinan Zhonghengguang Electromechanical Technology Center
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-03-22

Abstract

The invention provides a circuit breaker, relates to the field of circuit breakers, and aims to solve the problems that when the existing circuit breaker is used, the fixing effect of an electric wire cannot be enhanced, the electric wire cannot be continuously fixed, and the electric wire cannot be prevented from being pulled out and separated; the main body is a breaker body, mounting pieces are mounted on two sides of the top end of the main body, and a pressing piece is mounted on the top end of the main body; the mounting piece is of a rectangular structure, three round holes are formed in the mounting piece, a wedge block is arranged at the bottom of the inner end of the mounting piece, and a pressing plate is arranged at the bottom of the outer end of the mounting piece; the pressing plate comprises a limiting mechanism, the limiting mechanism is installed at the outer end of the pressing plate, and the pressing plate is of an L-shaped plate structure. When avoiding the electric wire to meet the gravity pulling and make the clamp plate rise, lead to the clamp plate to rise, can control the connecting piece and imbed the inside of slot, and then make the wedge of cardboard can contact with the bottom plate, and then make the clamp plate remove after fixing the electric wire, can carry out spacing fixed, the electric wire can not break away from by the pulling.

Description

Circuit breaker

Technical Field

The invention belongs to the technical field of circuit breakers, and particularly relates to a 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 predetermined time, and is generally used by being connected to an electric wire to further realize the disconnection and connection of a circuit.

For example, application No.: relate to a circuit breaker among CN201911272144.1, including insulating casing, be equipped with in the insulating casing and hold cavity and exhaust cavity, it is equipped with contact system, operating device, arc extinguishing system, overload protection system, its characterized in that in holding the cavity: the air outlet of the arc extinguishing system is arranged on two sides of the circuit breaker and penetrates through the whole circuit breaker along the length direction of the circuit breaker, so that the problems that the air outlet of the arc extinguishing system is arranged on the wire inlet end in the existing structure, the arcing distance is too large when high voltage and heavy current are disconnected, and interphase short circuit is easy to occur are effectively solved, zero arcing is realized for the circuit breaker, and the safety and the reliability during disconnection are greatly improved.

Based on prior art discovery, current circuit breaker when using can't be according to the convenient installation complementary unit of demand, can't be convenient fixed electric core when not having the screwdriver, can't prevent the mistake in the operation and bump the driving lever, and current circuit breaker when using, can't strengthen the fixed effect of electric wire, can't last fixed electric wire, can't avoid the electric wire to take out and break away from.

Disclosure of Invention

In order to solve the technical problems, the invention provides a circuit breaker, which aims to solve the problems that when the existing circuit breaker is used, an auxiliary mechanism cannot be conveniently installed according to requirements, an electric core cannot be conveniently fixed without a screwdriver, a poking rod cannot be prevented from being touched by mistake during operation, and when the existing circuit breaker is used, the electric wire fixing effect cannot be enhanced, an electric wire cannot be continuously fixed, and the electric wire cannot be prevented from being pulled out and separated.

The purpose and the effect of the circuit breaker are achieved by the following specific technical means:

a circuit breaker, comprising: a main body; the main body is a breaker body, mounting pieces are mounted on two sides of the top end of the main body, and a pressing piece is mounted on the top end of the main body; the mounting piece is of a rectangular structure, three round holes are formed in the mounting piece, a wedge block is arranged at the bottom of the inner end of the mounting piece, and a pressing plate is arranged at the bottom of the outer end of the mounting piece; the pressing plate comprises a limiting mechanism, the limiting mechanism is mounted at the outer end of the pressing plate, the pressing plate is of an L-shaped plate structure, two sides of the bottom of the pressing plate are of arc structures, a V-shaped groove is formed in the bottom of the pressing plate, a groove is formed in the outer side of the top end of the pressing plate, a round hole is formed in the middle of the pressing plate, a round rod of the top plate is inserted into the round hole, and the pressing plate is inserted into a rectangular groove of the bottom plate; the pressing piece is of a rectangular plate-shaped structure and is made of elastic plastic materials.

Further, the body includes: the side grooves are of L-shaped structures and are arranged on two sides of the top end of the main body; the supporting plate is of an L-shaped plate structure, the outer end of the supporting plate is of a wedge-shaped structure, the inner side of the top end of the supporting plate is of an arc-shaped structure, and the supporting plate is fixed at the bottoms of the two sides of the main body; the main body further includes: the embedded groove is of a rectangular structure and is arranged at the top end of the supporting plate; the contact piece is of a T-shaped structure and made of rubber, and the contact piece is fixedly adhered to the inside of the embedded groove and the upper portion of the supporting plate.

Further, the mount includes: the guide grooves are of inclined L-shaped structures and are arranged at two ends of the mounting piece; the embedded part is of an L-shaped structure, is arranged on the inner side of the mounting part and is inserted into the side groove; the mount further includes: the top plate is of an L-shaped plate structure and is fixed on the outer side of the top end of the mounting piece, three round rods are arranged at the bottom of the top plate, and springs are sleeved on the outer sides of the top ends of the round rods; the bottom plate is of a rectangular plate-shaped structure, three rectangular grooves are formed in the bottom plate, three rectangular blocks are arranged on the outer side of the bottom plate, the top end of the bottom plate is connected with the bottoms of the three round rods, and the bottom plate is fixed to the bottom of the outer end of the mounting piece; the mount further includes: the control rod is of a cylindrical structure, rubber anti-slip teeth which are arranged in an annular mode are arranged on the outer side of the top end of the control rod, a stop ring is arranged at the bottom of the control rod, the control rod is inserted into a circular hole of the mounting piece, and the control rod is inserted into screw rotating holes in the two sides of the main body; the plug-in components are of cross structures and are arranged at the bottom of the control rod, and the plug-in components are inserted into the bolt grooves of the main body.

Further, the pressing plate includes: the slots are of L-shaped structures, four symmetrical slots are arranged at two ends of the bottom of the outer side of the pressing plate, and the slots are positioned in the grooves of the pressing plate; the stop block is of a wedge-shaped structure and made of rubber and is arranged inside the groove of the pressing plate; the stop gear includes: the bottom of the connecting piece is of a rectangular structure, the top end of the connecting piece is composed of two symmetrical L-shaped structures, and the top end of the connecting piece is embedded into the slot; the cardboard, the cardboard is U-shaped plate column structure, and the cardboard is the spring board material, and the inboard of cardboard is equipped with align to grid's wedge, and the bottom at two connecting pieces is fixed to the cardboard.

Further, the follower includes: the pressing groove is of a rectangular structure and is arranged at the bottom of the pressing piece; the contact plate is of a rectangular plate-shaped structure, arc-shaped grooves are uniformly arranged at the top of the contact plate, the contact plate is made of oily silica gel, and the contact plate is fixedly bonded in the pressing groove; the follower further includes: the connecting plates are of L-shaped plate structures and are arranged on two sides of the pressing piece; the connecting rod, the connecting rod is cylindrical structure, and the connecting rod is established at the bottom side of connecting plate, and the connecting rod inserts in the inside of guide way.

Compared with the prior art, the invention has the following beneficial effects:

1. in the device, the installation part is arranged and is used for being connected with the side groove through the embedding part, so that the installation part can be conveniently installed and used, meanwhile, after the installation part is installed, the installation part can drive the pressing plate to be installed together, so as to assist in fixing the electric wire, the installation part drives the control rod to be installed together, so that the plug-in part can be inserted into the groove of the screw rod, so that the main body can be directly rotated through manual control during connection and maintenance, meanwhile, the installation part installs the pressing part through the guide groove, so that the connecting rod of the pressing part can move in the guide groove, so that the pressing part can be installed on the outer side of the deflector rod along with the guide groove, so as to protect the deflector rod, so that the deflector rod can avoid error touch when the deflector rod automatically trips, the contact plate can be contacted with the deflector rod, because the pressing part is made of elastic plastic, and the contact plate is made of oily silica gel, when the deflector rod trips to reset, the pressing piece can be smoothly pushed, so that the pressing piece cannot block the operation of the shifting lever;

2. in the device, a pressure plate is arranged and is used for being installed together with the installation part, so that after the wires are connected, the pressure plate can receive the power transmitted by the top spring, so that the pressing plate can continuously move downwards to be contacted with the electric wire through the V-shaped groove, the bottom of the electric wire is contacted with the supporting plate and the contact piece at the same time, the electric wire can be fixed in an anti-skid manner, the contact piece can be pressed by the pressing plate to deform, so that the electric wire can be embedded and fixed, thereby ensuring better fixing effect, avoiding the pressure plate from rising when the pressure plate rises due to the pulling of the electric wire by gravity when the pressure plate needs to be fixed, controlling the connecting piece to be embedded into the slot, so that the wedge-shaped block of the clamping plate can be contacted with the bottom plate, and after the pressing plate moves to fix the electric wire, can carry out spacing fixed, and then firmly fix the electric wire, make the electric wire can not pulled and break away from.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic bottom view of the present invention.

Fig. 3 is an exploded perspective view of the present invention.

Fig. 4 is an exploded bottom view of the present invention.

Fig. 5 is a schematic exploded perspective view of the main body of the present invention.

Fig. 6 is a schematic bottom view of the mount of the present invention.

FIG. 7 is a schematic view of the bottom and partially enlarged structure of the pressure plate of the present invention.

FIG. 8 is a schematic view of the bottom view of the compression element of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a main body; 101. a side groove; 102. a support plate; 103. a groove is embedded; 104. a contact member; 2. a mounting member; 201. a guide groove; 202. an insert; 203. a top plate; 204. a base plate; 205. a control lever; 206. a plug-in; 3. pressing a plate; 301. a slot; 302. a stopper; 303. a connecting member; 304. clamping a plate; 4. pressing parts; 401. pressing a groove; 402. a contact plate; 403. a connecting plate; 404. a connecting rod.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like 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 "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the invention provides a circuit breaker, comprising a main body 1; the main body 1 is a breaker body, mounting pieces 2 are mounted on two sides of the top end of the main body 1, and a pressing piece 4 is mounted on the top end of the main body 1; the mounting piece 2 is of a rectangular structure, three round holes are formed in the mounting piece 2, wedge blocks are arranged at the bottom of the inner end of the mounting piece 2, the mounting piece 2 is mounted on two sides of the main body 1 according to requirements, the mounting piece 2 can be mounted and used at will, and the pressing plate 3 is mounted at the bottom of the outer end of the mounting piece 2; the pressing plate 3 comprises a limiting mechanism, the limiting mechanism is installed at the outer end of the pressing plate 3, the pressing plate 3 is of an L-shaped plate structure, two sides of the bottom of the pressing plate 3 are of arc structures, the pressing plate 3 plays a role of receiving the power of a spring to move downwards so as to press and fix an electric wire, a V-shaped groove is formed in the bottom of the pressing plate 3, a groove is formed in the outer side of the top end of the pressing plate 3, a round hole is formed in the middle of the pressing plate 3, a round rod of the top plate 203 is inserted into the round hole, and the pressing plate 3 is inserted into a rectangular groove of the bottom plate 204; casting die 4, casting die 4 are the rectangular plate structure, and casting die 4 is the elastic plastic material, and casting die 4 has played and has been in the driving lever top, avoids the effect that the human body touched by mistake.

Wherein, casting die 4 includes: the pressing groove 401 is of a rectangular structure, the pressing groove 401 is arranged at the bottom of the pressing piece 4, and the pressing groove 401 plays a role in installing the contact plate 402; the contact plate 402 is of a rectangular plate-shaped structure, arc-shaped grooves which are uniformly arranged are formed in the top of the contact plate 402, the contact plate 402 is made of oily silica gel, the contact plate 402 is fixedly bonded in the pressing groove 401, and the contact plate 402 has the function of directly contacting with the deflector rod, so that the deflector rod can smoothly pass through the contact plate 402 without encountering resistance when being reset; the pressing member 4 further includes: the connecting plate 403 is of an L-shaped plate structure, and the connecting plate 403 is arranged on two sides of the pressing piece 4; connecting rod 404, connecting rod 404 are cylindrical structure, and connecting rod 404 is established at the bottom side of connecting plate 403, and connecting rod 404 inserts in the inside of guide way 201, and connecting rod 404 has played the effect of inserting into the inside of guide way 201, makes casting die 4 can stabilize the installation and use.

Wherein, clamp plate 3 includes: the slots 301 are L-shaped structures, four symmetrical slots 301 are arranged at two ends of the bottom of the outer side of the pressing plate 3, the slots 301 are located inside the grooves of the pressing plate 3, and the slots 301 play a role of embedding the top ends of the mounting connecting pieces 303, so that the connecting pieces 303 can move to drive the clamping plates 304 to be freely mounted for use; the stop block 302 is of a wedge-shaped structure, the stop block 302 is made of rubber, the stop block 302 is arranged in the groove of the pressure plate 3, and the stop block 302 can be stopped and fixed after being embedded into the top end of the connecting piece 303; stop gear includes: the bottom of the connecting piece 303 is of a rectangular structure, the top end of the connecting piece 303 is composed of two symmetrical L-shaped structures, and the top end of the connecting piece 303 is embedded in the slot 301; cardboard 304, cardboard 304 are U-shaped plate structure, and cardboard 304 is the spring board material, and the inboard of cardboard 304 is equipped with align to grid's wedge, and cardboard 304 is fixed in the bottom of two connecting pieces 303, and cardboard 304 has played and has made the wedge can contact with bottom plate 204, makes clamp plate 3 fix after the electric wire, can effectual spacing fixed.

Wherein, main part 1 includes: the side grooves 101 are L-shaped, the side grooves 101 are arranged on two sides of the top end of the main body 1, and the side grooves 101 play a role of embedding the installation embedded parts 202, so that the installation parts 2 can be freely installed according to requirements; the supporting plate 102 is of an L-shaped plate structure, the outer end of the supporting plate 102 is of a wedge-shaped structure, the inner side of the top end of the supporting plate 102 is of an arc-shaped structure, the supporting plate 102 plays a role of installing the contact element 104, meanwhile, the contact area between the supporting plate 102 and the electric wire can be increased, the electric wire can be in contact with the top end of the supporting plate 102, and further, the supporting plate 102 is fixed at the bottoms of the two sides of the main body 1 in an auxiliary regulation mode; the main body 1 further includes: the embedded groove 103, the embedded groove 103 is a rectangular structure, and the embedded groove 103 is arranged at the top end of the support plate 102; the contact 104 is in a T-shaped structure, the contact 104 is made of rubber, the contact 104 is fixedly bonded inside the embedded groove 103 and above the supporting plate 102, the contact 104 plays a role of anti-sliding contact with the electric wire, and meanwhile, the contact can be pressed by the pressing plate 3 to deform, so that the electric wire can be embedded and fixed.

Wherein, the mount 2 includes: the guide groove 201 is of an inclined L-shaped structure, the guide groove 201 is arranged at two ends of the mounting piece 2, and the guide groove 201 plays a role in mounting the connecting rod 404; an insert 202, wherein the insert 202 is of an L-shaped structure, the insert 202 is arranged at the inner side of the mounting part 2, and the insert 202 is inserted into the side groove 101; the mount 2 further includes: the top plate 203 is of an L-shaped plate structure, the top plate 203 is fixed on the outer side of the top end of the mounting part 2, the top plate 203 plays a role of mounting the pressing plate 3 through round rods and springs, so that the pressing plate 3 can receive power of the springs to move, the three round rods are arranged at the bottom of the top plate 203, and the springs are sleeved on the outer side of the top ends of the round rods; the bottom plate 204 is of a rectangular plate-shaped structure, three rectangular grooves are formed in the bottom plate 204, three rectangular blocks are arranged on the outer side of the bottom plate 204, the bottom plate 204 plays a role in controlling the pressing plate 3 to move in a guiding mode, the top end of the bottom plate 204 is connected with the bottoms of the three round rods, and the bottom plate 204 is fixed to the bottom of the outer end of the mounting piece 2; the mount 2 further includes: the control rod 205 is of a cylindrical structure, rubber anti-slip teeth which are arranged in an annular mode are arranged on the outer side of the top end of the control rod 205, a baffle ring is arranged at the bottom of the control rod 205, the control rod 205 is inserted into a circular hole of the mounting part 2, and the control rod 205 is inserted into screw rotating holes in two sides of the main body 1; plug-in components 206, plug-in components 206 are the cross structure, and plug-in components 206 are established in the bottom of control lever 205, and plug-in components 206 insert inside the bolt recess of main part 1, and plug-in components 206 can imbed the screw rod recess when the control lever 205 is rotatory inside, and then drive the screw rod rotatory, can fix electric core without the screwdriver.

As another embodiment of the present invention, when the lever is not required to be protected, the pressing member 4 may be manually pulled to move, so that the connecting rod 404 may be disengaged from the inside of the guiding groove 201, and the pressing member 4 may be removed.

When in use: when the device is required to be used, the two installation parts 2 can be manually controlled to be installed, so that the embedding part 202 can be embedded into the side groove 101, the installation parts 2 can be stably fixed, then the control main body 1 is fixed at a proper position, when the electric wire is required to be fixed, the pressing plate 3 at the proper position can be pulled upwards through manpower, then the electric wire penetrates through the bottom of the pressing plate 3, so that the electric wire can be inserted into the bottom of the fixing bolt, then the pressing plate 3 is loosened, the pressing plate 3 can receive the power of the spring to move downwards, further the electric wire is preliminarily limited and fixed, when the electric wire is clamped, the electric wire does not need to be held by hands, so that the electric wire cannot be separated, then the control rod 205 is pressed, the plug-in part 206 is embedded into the groove of the fixing bolt, then the control rod 205 is rotated, so that the control rod 205 can push the fixing bolt to clamp and fix the electric wire, and further stably connect the electric wire, then the connecting piece 303 is controlled to be installed, so that the top end of the connecting piece 303 can be inserted into the slot 301, then the pressing plate 3 is pressed downwards with force, after the pressing plate 3 moves downwards, the clamping plate 304 can be driven to move downwards, the wedge-shaped block of the clamping plate 304 can be contacted with the bottom plate 204, and further the pressing plate 3 can be in a limiting state, so that the pressing plate 3 can flatten the contact element 104, and further the electric wire is stably fixed, the fixing effect is better, and the electric wire can not be separated when being pulled, then the pressing piece 4 is controlled to be installed, so that the connecting rod 404 of the pressing piece 4 can be inserted into the guide groove 201, then the pressing piece 4 is pushed laterally, so that the top end of the pressing piece 4 is initially positioned at the lowest end of the guide groove 201, and further limited, so that the pressing piece 4 can be positioned at the top end of the deflector rod for protection, the human body is prevented from touching the deflector rod by mistake, and meanwhile, when the deflector rod is subjected to short circuit automatic reset, the circuit breaker can smoothly pass through the contact plate 402 without encountering resistance, and the circuit breaker can be connected with an electric wire for use.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A circuit breaker, characterized in that the circuit breaker comprises:

a main body;

the main body is a breaker body, mounting pieces are mounted on two sides of the top end of the main body, and a pressing piece is mounted on the top end of the main body; the mounting piece is of a rectangular structure, three round holes are formed in the mounting piece, a wedge block is arranged at the bottom of the inner end of the mounting piece, and a pressing plate is arranged at the bottom of the outer end of the mounting piece;

the pressing plate comprises a limiting mechanism, the limiting mechanism is mounted at the outer end of the pressing plate, the pressing plate is of an L-shaped plate structure, two sides of the bottom of the pressing plate are of arc structures, a V-shaped groove is formed in the bottom of the pressing plate, a groove is formed in the outer side of the top end of the pressing plate, a round hole is formed in the middle of the pressing plate, a round rod of the top plate is inserted into the round hole, and the pressing plate is inserted into a rectangular groove of the bottom plate; the pressing piece is of a rectangular plate-shaped structure and is made of elastic plastic materials.

2. The circuit breaker of claim 1, wherein the body comprises:

the side grooves are of L-shaped structures and are arranged on two sides of the top end of the main body; the backup pad, the backup pad is L shaped plate column structure, and the outer end of backup pad is the wedge structure, and the top inboard of backup pad is the arc structure, and the both sides bottom at the main part is fixed to the backup pad.

3. The circuit breaker of claim 1, wherein the main body further comprises:

the embedded groove is of a rectangular structure and is arranged at the top end of the supporting plate; the contact piece is of a T-shaped structure and made of rubber, and the contact piece is fixedly adhered to the inside of the embedded groove and the upper portion of the supporting plate.

4. The circuit breaker of claim 1, wherein the mount comprises:

the guide grooves are of inclined L-shaped structures and are arranged at two ends of the mounting piece;

the embedding piece is of an L-shaped structure and arranged on the inner side of the mounting piece, and the embedding piece is inserted into the side groove.

5. The circuit breaker of claim 1, wherein the mount further comprises:

the top plate is of an L-shaped plate structure and is fixed on the outer side of the top end of the mounting piece, three round rods are arranged at the bottom of the top plate, and springs are sleeved on the outer sides of the top ends of the round rods;

the bottom plate, the bottom plate is the rectangular plate structure, and the inside of bottom plate is equipped with three rectangular channel, and the outside of bottom plate is equipped with three rectangular block, and the top of bottom plate is connected with the bottom of three round bar, and the outer end bottom at the installed part is fixed to the bottom plate.

6. The circuit breaker of claim 1, wherein the mount further comprises:

the control rod is of a cylindrical structure, rubber anti-slip teeth which are arranged in an annular mode are arranged on the outer side of the top end of the control rod, a stop ring is arranged at the bottom of the control rod, the control rod is inserted into a circular hole of the mounting piece, and the control rod is inserted into screw rotating holes in the two sides of the main body; the plug-in components are of cross structures and are arranged at the bottom of the control rod, and the plug-in components are inserted into the bolt grooves of the main body.

7. The circuit breaker of claim 1, wherein the pressure plate comprises:

the slots are of L-shaped structures, four symmetrical slots are arranged at two ends of the bottom of the outer side of the pressing plate, and the slots are positioned in the grooves of the pressing plate; the dog, the dog is the wedge structure, and the dog is the rubber material, and the dog is established inside the recess of clamp plate.

8. The circuit breaker of claim 1, wherein the limit mechanism comprises:

the bottom of the connecting piece is of a rectangular structure, the top end of the connecting piece is composed of two symmetrical L-shaped structures, and the top end of the connecting piece is embedded into the slot;

the cardboard, the cardboard is U-shaped plate column structure, and the cardboard is the spring board material, and the inboard of cardboard is equipped with align to grid's wedge, and the bottom at two connecting pieces is fixed to the cardboard.

9. The circuit breaker of claim 1, wherein the compression element comprises:

the pressing groove is of a rectangular structure and is arranged at the bottom of the pressing piece;

the contact plate, the contact plate is the rectangular plate structure, and the top of contact plate is equipped with the arc wall of align to grid, and the contact plate is oily silica gel material, and the contact plate bonds and fixes in the inside of indent.

10. The circuit breaker of claim 1, wherein the compression element further comprises:

the connecting plates are of L-shaped plate structures and are arranged on two sides of the pressing piece; the connecting rod, the connecting rod is cylindrical structure, and the connecting rod is established at the bottom side of connecting plate, and the connecting rod inserts in the inside of guide way.