CN211045348U

CN211045348U - Plastic casing type circuit breaker

Info

Publication number: CN211045348U
Application number: CN201921990494.7U
Authority: CN
Inventors: 颜建丰
Original assignee: Hangzhou Chengxiang Electric Co ltd
Current assignee: Hangzhou Chengxiang Electric Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-17
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a plastic casing type circuit breaker, which comprises a casing and a mounting plate, wherein the casing is nested and installed at the top of the mounting plate, the casing comprises a pressing block, a spring piece, a limiting rod and an insulating plate, a plurality of movable rods with the same specification are arranged at the inner side of the casing, the movable rods penetrate through the casing and are movably connected with the casing through bearings, the pressing block is embedded and arranged at the top end of the movable rod, the spring piece is arranged at one end of the movable rod and is connected with the movable rod through screws, the limiting rod is embedded and arranged at the outer side of the movable rod, the insulating plate is arranged at the inner side of the casing and is connected with the casing through screws, a movable mechanism is arranged at one end of the insulating plate, a power-on mechanism is arranged at the other end of the insulating plate, four corners of the circuit breaker, and the structure is simple, and the manufacturing cost is lower.

Description

Plastic casing type circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically says to a plastic casing formula circuit breaker.

Background

The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, has the function equivalent to the combination of a fuse type switch, an over-under-heat relay and the like, does not need to change parts after breaking fault current, and generally needs to be used for protecting the circuit in residential quarters along with the development of the society.

However, the existing circuit breaker is generally installed through one guide rail, the stability of the circuit breaker cannot be guaranteed, the circuit breaker is easy to fall off when the circuit breaker is used for a long time, the structure is complex, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above-mentioned not enough, the utility model provides a plastic casing type circuit breaker here makes four angles of circuit breaker rather than fixed through a mounting panel, has promoted the steadiness of circuit breaker greatly, simple to operate leads to the circuit breaker to be difficult for droing long term service life, and simple structure, and manufacturing cost is lower.

The utility model discloses a realize like this, construct a plastic casing formula circuit breaker, including shell and mounting panel, the shell nestification is installed in the top of mounting panel, the shell is including pressing the briquetting, the spring leaf, gag lever post and insulation board, the shell inboard is equipped with the movable rod that a plurality of specifications are the same, the movable rod runs through the shell and passes through the bearing with the shell and keep swing joint, press the briquetting embedding to set up in the top of movable rod, the spring leaf sets up in the one end of movable rod and passes through screwed connection with the movable rod, the gag lever post embedding sets up in the outside of movable rod, the insulation board is installed in the inboard of shell and is passed through screwed connection with the shell, the moving mechanism is installed to insulation board one.

Furthermore, a plurality of limiting holes with the same specification are hollowed in the top of the mounting plate; the mounting plate is fixed on the wall body through screws, the inner side of the mounting plate is hollow, in addition, the movable rod is limited through the arranged limiting rod, the movable rod is prevented from moving, the spring piece at one end of the movable rod is placed into the limiting hole, the spring piece generates elastic deformation, when the spring piece is pressed into the inner side of the mounting plate, the spring piece is deformed again and returns to the original shape, one end of the spring piece is attached to the inner side surface of the mounting plate, the mounting plate and the shell are kept fixed, when the mounting plate is required to be disassembled, the pressing block is rotated to drive the movable rod to rotate, the spring piece rotates along with the pressing block, when the spring piece rotates 90 degrees, one end of the spring piece is separated from the inner side surface of the mounting plate, meanwhile, the movable rod can be drawn out of the limiting hole, the disassembly of the shell is completed, and, the stability of the circuit breaker is greatly improved, and the circuit breaker is convenient to install.

Furthermore, the movable mechanism comprises an operating handle, a fixed block, a connecting rod, a triangular plate, a stationary contact and a movable block, the operating handle is movably connected with the insulating plate through a bearing, the fixed block is arranged at one end of the operating handle and is connected with the operating handle through a screw, two ends of the connecting rod are respectively movably connected with the fixed block and the triangular plate through the bearing, a bottom corner of the triangular plate is movably connected with the insulating plate through the bearing, the stationary contact is arranged at the bottom of the movable block and is attached to the movable block, the stationary contact is fixedly connected with the insulating plate through a screw, and the movable block is arranged at a top corner of the triangular plate and is connected with the triangular plate through; through control movable block rebound, the set-square of being connected with the movable block is followed and is rotated, and at this moment, the base angle of set-square passes through the bearing and rotates, and the other one corner in top of set-square passes through lever principle and drives the connecting rod of being connected rather than moving down, follows the removal with the fixed block that the connecting rod other end is connected, and fixed block pulling operating handle passes through the bearing and rotates, and at this moment, operating handle up moves, simple structure, and manufacturing cost is lower.

Furthermore, the electrifying mechanism comprises an upper wiring terminal, a lower wiring terminal, a first wire, a coil, a second wire, an arc extinguish chamber, a connecting plate, a third wire and an armature, wherein the upper wiring terminal is arranged at the top end of the insulating plate and is connected with the insulating plate in a nested manner, the lower wiring terminal is arranged at the bottom end of the insulating plate and is connected with the insulating plate in a nested manner, two ends of the first wire are respectively connected with the upper wiring terminal and the coil, the coil is nested in the middle of the insulating plate, one end of the coil is connected with the stationary contact through the second wire, the arc extinguish chamber is arranged at the top of the lower wiring terminal, two ends of the third wire are respectively connected with the lower wiring terminal; through last wiring end and the switch-on of external power source that sets up, the electric current leads into the coil from last wiring end through first wire, the electric current leads into the stationary contact from the coil through the second wire, at this moment, the electric current leads into the movable block with the stationary contact laminating, the electric current leads into the set-square of being connected with the movable block again, the set-square leads into down the wiring end through the third wire, it is connected with external power source to connect down the wiring end, form closed circuit, when circuit current overload, the coil can produce magnetic field through the electricity magnetism principle, the armature of coil bottom has magnetic force, magnetic force through armature upwards attracts the movable block, the movable block breaks away from with the stationary contact, make the circuit break, circuit breaker simple structure, and low in manufacturing cost.

Further, the arc extinguish chamber is connected with the insulating plate through a screw, and the arc extinguish chamber is connected with the third wire through a connecting plate; the connecting plate is made of brass, and the arc of the third wire is introduced into the arc extinguish chamber through the connecting plate, so that the arc in the circuit is absorbed, and the circuit is protected.

The utility model discloses a mounting panel makes four angles of circuit breaker rather than fixed, has promoted the steadiness of circuit breaker greatly, simple to operate leads to the circuit breaker to be difficult for droing long term service life, and simple structure, and manufacturing cost is lower, and concrete advantage embodies:

the method has the advantages that: the mounting plate is fixed on a wall body through screws, the inner side of the mounting plate is hollow, the movable rod is limited through the arranged limiting rod, the movable rod is prevented from moving, the spring piece at one end of the movable rod is placed into the limiting hole, the spring piece is elastically deformed, when the spring piece is pressed into the inner side of the mounting plate, the spring piece is deformed again and returns to the original shape, one end of the spring piece is attached to the inner side surface of the mounting plate, the mounting plate and the shell are kept fixed, when the mounting plate needs to be disassembled, the pressing block is rotated to drive the movable rod to rotate, the spring piece rotates along with the spring piece, when the spring piece rotates 90 degrees, one end of the spring piece is separated from the inner side surface of the mounting;

the method has the advantages that: the circuit is connected with an external power line through an upper connecting terminal, current is led into a coil from the upper connecting terminal through a first wire, the current is led into a stationary contact from the coil through a second wire, at the moment, the current is led into a movable block attached to the stationary contact, the current is further led into a triangular plate connected with the movable block, the triangular plate is led into a lower connecting terminal through a third wire, the lower connecting terminal is connected with an external power supply to form a closed loop, when the circuit current is overloaded, the coil can generate a magnetic field through an electromagnetic principle, an armature at the bottom of the coil can have magnetic force, the movable block is attracted upwards through the magnetic force of the armature, the movable block is separated from the stationary contact to disconnect the circuit, electric arcs of the third wire are led into an arc extinguish chamber through a connecting plate, and the electric arcs in the circuit are absorbed;

the method has the advantages that: through control movable block rebound, the set-square of being connected with the movable block is followed and is rotated, and at this moment, the base angle of set-square passes through the bearing and rotates, and another one corner in the top of set-square passes through lever principle and drives the connecting rod of being connected rather than moving down, and the fixed block of being connected with the connecting rod other end is followed and is removed, and fixed block pulling operating handle passes through the bearing and rotates, and operating handle up moves this moment.

Drawings

Fig. 1 is a schematic structural diagram of the plastic case circuit breaker of the present invention.

Fig. 2 is a schematic view of the structure of the insulating plate of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2 according to the present invention.

Fig. 4 is a schematic view of the mounting plate structure of the present invention.

Fig. 5 is a schematic view of the structure of the housing of the present invention.

Sequence numbers shown in the figures: the device comprises a shell 1, a movable rod 11, a pressing block 12, a spring piece 13, a limiting rod 14, an insulating plate 15, a movable mechanism 151, an operating handle 1511, a fixed block 1512, a connecting rod 1513, a triangle 1514, a stationary contact 1515, a movable block 1516, an energizing mechanism 152, an upper terminal 1521, a lower terminal 1522, a first conducting wire 1523, a coil 1524, a second conducting wire 1525, an arc extinguish chamber 1526, a connecting plate 1527, a third conducting wire 1528, an armature 1529, a mounting plate 2 and a limiting hole 21.

Detailed Description

The present invention will be described in detail below with reference to the attached drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention; furthermore, the terms "first," "second," "third," "upper, lower, left, right," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a plastic casing formula circuit breaker through improving here, as shown in the specification attached drawing, can be implemented as follows; the energy-saving type solar cell module comprises a shell 1 and a mounting plate 2, wherein the shell 1 is nested and mounted at the top of the mounting plate 2, the shell 1 comprises a pressing block 12, a spring piece 13, a limiting rod 14 and an insulating plate 15, a plurality of movable rods 11 with the same specification are arranged on the inner side of the shell 1, the movable rods 11 penetrate through the shell 1 and are movably connected with the shell 1 through bearings, the pressing block 12 is embedded and arranged at the top end of each movable rod 11, the spring piece 13 is arranged at one end of each movable rod 11 and is connected with the movable rods 11 through screws, the limiting rod 14 is embedded and arranged on the outer side of the movable rods 11, the insulating plate 15 is mounted on the inner side of the shell 1 and is connected with the shell 1 through screws;

more specifically, the top of the mounting plate 2 is hollowed with a plurality of limiting holes 21 with the same specification; the mounting plate 2 is fixed on the wall body through screws, the inner side of the mounting plate 2 is hollow, in addition, the movable rod 11 is limited through the arranged limit rod 14 to prevent the movable rod 11 from moving, the spring piece 13 at one end of the movable rod 11 is placed into the limit hole 21, the spring piece 13 generates elastic deformation, when the spring piece 13 is pressed into the inner side of the mounting plate 2, the spring piece 13 is deformed again and returns to the original shape, one end of the spring piece 13 is attached to the inner side surface of the mounting plate 2, the mounting plate 2 and the shell 1 are kept fixed, when the disassembly is needed, the movable rod 11 is driven to rotate by rotating the pressing block 12, the spring piece 13 rotates along with the rotation, when the spring piece 13 rotates 90 degrees, one end of the spring piece 13 is separated from the inner side surface of the mounting plate 2, meanwhile, the movable rod 11 can be drawn out from the limiting hole 21 to finish the disassembly of the shell 1, and the diameter of the limiting hole 21 is larger than the length of the side surface of the spring piece 13;

more specifically, the movable mechanism 151 includes an operating handle 1511, a fixed block 1512, a connecting rod 1513, a triangular plate 1514, a stationary contact 1515 and a movable block 1516, the operating handle 1511 is movably connected with the insulating plate 15 through a bearing, the fixed block 1512 is disposed at one end of the operating handle 1511 and is connected with the operating handle 1511 through a screw, two ends of the connecting rod 1513 are respectively movably connected with the fixed block 1512 and the triangular plate 1514 through a bearing, a bottom corner of the triangular plate 1514 is movably connected with the insulating plate 15 through a bearing, the stationary contact 1515 is disposed at the bottom of the movable block 1516 and is attached to the movable block 1516, the stationary contact 1515 is fixedly connected with the insulating plate 15 through a screw, and the movable block 1516 is disposed at a top corner of the triangular plate 1514 and is connected with the triangular plate; by controlling the movable block 1516 to move upwards, the triangular plate 1514 connected with the movable block 1516 rotates along with the movable block 1516, at this time, the bottom corner of the triangular plate 1514 rotates through a bearing, the other corner of the top end of the triangular plate 1514 drives the connecting rod 1513 connected with the triangular plate to move downwards through the lever principle, the fixed block 1512 connected with the other end of the connecting rod 1513 moves along with the triangular plate, the fixed block 1512 pulls the operating handle 1511 to rotate through the bearing, and at this time, the operating handle 1511 moves upwards;

more specifically, the energizing mechanism 152 includes an upper terminal 1521, a lower terminal 1522, a first wire 1523, a coil 1524, a second wire 1525, an arc extinguish chamber 1526, a connecting plate 1527, a third wire 1528 and an armature 1529, where the upper terminal 1521 is disposed at the top end of the insulating plate 15 and is connected to the insulating plate 15 in a nested manner, the lower terminal 1522 is disposed at the bottom end of the insulating plate 15 and is connected to the insulating plate 15 in a nested manner, two ends of the first wire 1523 are respectively connected to the upper terminal 1521 and the coil 1524, the coil 1524 is disposed at the middle position of the insulating plate 15 in a nested manner, one end of the coil 1524 is connected to the stationary contact 1515 through the second wire 1525, the arc extinguish chamber 1526 is disposed at the top of the lower terminal 1522, two ends of the third wire 1528 are respectively connected to the lower terminal 1522 and the triangular plate 1514, the armature 152; the current is conducted from an upper terminal 1521 to an external power line through an arranged upper terminal 1521, the current is conducted from the upper terminal 1521 to a coil 1524 through a first lead 1523, the current is conducted from the coil 1524 to a stationary contact 1515 through a second lead 1525, at the moment, the current is conducted to a movable block 1516 attached to the stationary contact 1515, the current is further conducted to a triangular plate 1514 connected with the movable block 1516, the triangular plate 1514 is conducted to a lower terminal 1522 through a third lead 1528, the lower terminal 1522 is connected with an external power supply to form a closed loop, when the current of the circuit is overloaded, the coil 1524 generates a magnetic field through an electromagnetic generating principle, an armature 1529 at the bottom of the coil 1524 has magnetic force, the movable block 1516 is upwards attracted through the magnetic force of the armature 1529, the movable block 1516 is separated from the stationary contact 1515, and the circuit is disconnected;

more specifically, the arc-extinguishing chamber 1526 is connected to the insulating plate 15 by a screw, and the arc-extinguishing chamber 1526 is connected to the third wire 1528 by a connecting plate 1527; the connecting plate 1527 is made of brass, and an arc of the third wire 1528 is introduced into the arc extinguishing chamber 1526 through the connecting plate 1527, so that the arc in the circuit is absorbed, and the circuit is protected.

The working principle of the plastic shell type circuit breaker is as follows: the mounting plate 2 is fixed on a wall body through screws, the inner side of the mounting plate 2 is hollow, the movable rod 11 is limited through a limiting rod 14, the movable rod 11 is prevented from moving, a spring piece 13 at one end of the movable rod 11 is placed into a limiting hole 21, the spring piece 13 is elastically deformed, when the spring piece 13 is pressed into the inner side of the mounting plate 2, the spring piece 13 is deformed again and returns to the original shape, one end of the spring piece 13 is attached to the inner side surface of the mounting plate 2, the mounting plate 2 is fixed with the shell 1, when the mounting plate is required to be dismounted, the movable rod 11 is driven to rotate by rotating the pressing block 12, the spring piece 13 rotates along with the spring piece, when the spring piece 13 rotates 90 degrees, one end of the spring piece 13 is separated from the inner side surface of the mounting plate 2, meanwhile, the movable rod 11 can be drawn out of the limiting hole 21, the current is led into the coil 1524 from the upper terminal 1521 through the first conducting wire 1523, the current is led into the stationary contact 1515 from the coil 1524 through the second conducting wire 1525, at this time, the current is led into the movable block 1516 attached to the stationary contact 1515, the current is led into the triangular plate 1514 connected with the movable block 1516, the triangular plate 1514 is led into the lower terminal 1522 through the third conducting wire 1528, the lower terminal 1522 is connected with an external power supply to form a closed circuit, when the current of the circuit is overloaded, the coil 1524 generates a magnetic field through an electromagnetic principle, the armature 1529 at the bottom of the coil 1524 has magnetic force, the movable block 1516 is attracted upwards through the magnetic force of the armature 1529, the movable block 1516 is separated from the stationary contact 1515 to break the circuit, the electric arc of the third conducting wire 1528 is led into the arc extinguishing chamber 1516 through the connecting plate 1527, the electric arc in the circuit is absorbed, the movable block is controlled to move upwards, the arc 1514 connected with the movable block 1516 rotates along with the electric arc, at this time, the bottom corner of the triangular plate 1514 rotates through a bearing, the other corner of the top end of the triangular plate 1514 drives the connecting rod 1513 connected with the triangular plate to move downwards through the lever principle, the fixed block 1512 connected with the other end of the connecting rod 1513 moves along with the connecting rod, the fixed block 1512 pulls the operating handle 1511 to rotate through the bearing, and at this time, the operating handle 1511 moves upwards.

In conclusion; plastics shell type circuit breaker compares with current plastics shell type circuit breaker, makes four angles of circuit breaker rather than fixed through a mounting panel, has promoted the steadiness of circuit breaker greatly, simple to operate leads to the circuit breaker to be difficult for droing long term service life, and simple structure, and manufacturing cost is lower.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A plastic case type circuit breaker comprising a case (1) and a mounting plate (2), characterized in that: the shell (1) is nested on the top of the mounting plate (2), the shell (1) comprises a pressing block (12), a spring piece (13), a limiting rod (14) and an insulating plate (15), a plurality of movable rods (11) with the same specification are arranged on the inner side of the shell (1), the movable rods (11) penetrate through the shell (1) and are movably connected with the shell (1) through bearings, the pressing block (12) is embedded in the top end of the movable rod (11), the spring piece (13) is arranged at one end of the movable rod (11) and is connected with the movable rod (11) through a screw, the limiting rod (14) is embedded in the outer side of the movable rod (11), the insulating plate (15) is arranged on the inner side of the shell (1) and is connected with the shell (1) through screws, a movable mechanism (151) is installed at one end of the insulating plate (15), and a power-on mechanism (152) is installed at the other end of the insulating plate (15).

2. The plastic case circuit breaker as claimed in claim 1, wherein: the top of the mounting plate (2) is provided with a plurality of limiting holes (21) with the same specification in a hollow manner.

3. The plastic case circuit breaker as claimed in claim 1, wherein: the movable mechanism (151) comprises an operating handle (1511), a fixed block (1512), a connecting rod (1513), a triangular plate (1514), a static contact (1515) and a movable block (1516), the operating handle (1511) is movably connected with the insulating plate (15) through a bearing, the fixed block (1512) is arranged at one end of the operating handle (1511) and is connected with the operating handle (1511) through a screw, two ends of the connecting rod (1513) are respectively movably connected with the fixed block (1512) and the triangular plate (1514) through bearings, the bottom corner of the triangular plate (1514) is movably connected with the insulating plate (15) through a bearing, the static contact (1515) is arranged at the bottom of the movable block (1516) and is attached to the movable block (1516), the static contact (1515) is fixedly connected with the insulating plate (15) through a screw, and the movable block (1516) is arranged at the top angle of the triangular plate (1514) and is connected with the triangular plate (1514) through a screw.

4. The plastic case circuit breaker as claimed in claim 1, wherein: the electrifying mechanism (152) comprises an upper terminal (1521), a lower terminal (1522), a first lead (1523), a coil (1524), a second lead (1525), an arc extinguishing chamber (1526), a connecting plate (1527), a third lead (1528) and an armature (1529), wherein the upper terminal (1521) is arranged at the top end of an insulating plate (15) and is connected with the insulating plate (15) in a nested manner, the lower terminal (1522) is arranged at the bottom end of the insulating plate (15) and is connected with the insulating plate (15) in a nested manner, two ends of the first lead (1523) are respectively connected with the upper terminal (1521) and the coil (1524), the coil (1524) is arranged at the middle position of the insulating plate (15) in a nested manner, one end of the coil (1524) is connected with a static contact (1515) through the second lead (1525), the arc extinguishing chamber (1526) is arranged at the top of the lower terminal (1522), two ends of the third lead (1528) are respectively connected with the lower terminal (1522) and a triangular, the armature (1529) is arranged at the bottom of the coil (1524), and the armature (1529) is connected with the insulating plate (15) through a screw.

5. The plastic case type circuit breaker according to claim 4, wherein: the arc extinguish chamber (1526) is connected with the insulating plate (15) through a screw, and the arc extinguish chamber (1526) is connected with a third wire (1528) through a connecting plate (1527).