CN220155457U

CN220155457U - Environment-friendly molded case circuit breaker

Info

Publication number: CN220155457U
Application number: CN202321531525.9U
Authority: CN
Inventors: 范亚峰; 孟冬
Original assignee: Xuchang Dongyun Electromechanical Co ltd
Current assignee: Xuchang Dongyun Electromechanical Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2023-12-08
Anticipated expiration: 2033-06-15

Abstract

The utility model discloses an environment-friendly molded case circuit breaker, which comprises an outer shell, wherein an opening and closing handle is arranged at the middle position of the front end surface of the outer shell, a parameter table is arranged on one side of the front end surface of the outer shell, and a reset switch is arranged on the other side of the front end surface of the outer shell; further comprises: the heat dissipation copper pipes are arranged on two sides of the inner part of the outer shell, the heat dissipation copper pipes are connected with the outer shell in a sealing way, two ends of each heat dissipation copper pipe extend to the outer part of the outer shell, one end of each heat dissipation copper pipe, which is positioned on the outer part of the outer shell, is fixedly provided with a heat dissipation flaring, and the heat dissipation flaring is in a conical structure; the installation mechanism is arranged at the rear end of the outer shell, the installation mechanism is fixedly connected with the outer shell, the movable installation plates are symmetrically installed at the rear end of the installation mechanism, and the movable installation plates and the installation mechanism slide and limit, so that the problem of poor heat dissipation and installation convenience of the molded case circuit breaker is solved.

Description

Environment-friendly molded case circuit breaker

Technical Field

The utility model relates to the technical field of molded case circuit breakers, in particular to an environment-friendly molded case circuit breaker.

Background

The molded case circuit breaker is also called a device type circuit breaker, all parts are sealed in a plastic shell, the auxiliary contacts, the undervoltage tripping device, the shunt tripping device and the like are modularized, and the molded case circuit breaker can cut off current automatically after the current exceeds trip setting. Plastic housing refers to the use of plastic insulators as the housing of the device to isolate the conductors from each other and from the grounded metal parts. Molded case circuit breakers typically contain a thermo-magnetic trip unit, while large sized molded case circuit breakers are equipped with solid state trip sensors. The tripping unit is divided into: thermomagnetic trip and electronic trip.

For example, chinese issued patent CN216389226U, an environment-friendly dry air insulation circuit breaker, comprises a circuit breaker body, wherein the circuit breaker body is provided with an installation notch for installing wires, one end of the installation notch is provided with an inlet, a binding post, a double-ended screw rod and a clamping plate are arranged in the installation notch, the double-ended screw rod is rotationally connected with the circuit breaker body, a fixing hole is formed in the middle of the double-ended screw rod along the radial direction of the double-ended screw rod, the clamping plate is two metal plates, the two clamping plates are respectively in threaded connection with two ends of the double-ended screw rod, and the binding post is electrically connected with the clamping plate through a wire. According to the double-end screw rod, the double-end screw rod is rotated, so that the electric wires are wound on the double-end screw rod, and meanwhile, the two clamping plates are driven to be close to each other and clamp the wound electric wires, so that the electric wires are connected more firmly, and the conductive area between the electric wires and the clamping plates is increased.

In actual use, the prior art can generate a large amount of heat along with the high-efficiency work of the internal elements, if the heat is not timely emitted, the service life of the elements and the safety are influenced, on the other hand, the installation convenience is poor, the flexible disassembly and assembly of the circuit breaker cannot be realized in the process of daily maintenance, and therefore the current requirements are not met, and the environment-friendly molded case circuit breaker is provided.

Disclosure of Invention

The utility model aims to provide an environment-friendly molded case circuit breaker, which is used for solving the problems of poor heat dissipation and poor installation convenience of the molded case circuit breaker in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the environment-friendly molded case circuit breaker comprises an outer shell, wherein an opening and closing handle is arranged at the middle position of the front end face of the outer shell, a parameter table is arranged on one side of the front end face of the outer shell, and a reset switch is arranged on the other side of the front end face of the outer shell; further comprises:

the heat dissipation copper pipes are arranged on two sides of the inner part of the outer shell, the heat dissipation copper pipes are connected with the outer shell in a sealing way, two ends of each heat dissipation copper pipe extend to the outer part of the outer shell, one end of each heat dissipation copper pipe, which is positioned on the outer part of the outer shell, is fixedly provided with a heat dissipation flaring, and the heat dissipation flaring is in a conical structure;

the mounting mechanism is arranged at the rear end of the outer shell and is fixedly connected with the outer shell, the movable mounting plates are symmetrically arranged at the rear end of the mounting mechanism up and down, and the movable mounting plates and the mounting mechanism are limited in a sliding mode.

Preferably, the outer wall of the inner end of the outer shell body of the heat dissipation copper pipe is provided with a plurality of heat dissipation copper sheets which are distributed at equal intervals in sequence, the inner part of the heat dissipation copper pipe is provided with a plurality of inner fins which are distributed at equal intervals in sequence, and the two ends of each inner fin are fixedly connected with the heat dissipation copper sheets respectively.

Preferably, connecting pieces are arranged at the upper end and the lower end between the heat dissipation copper pipes, and the connecting pieces are located in the outer shell.

Preferably, the inside of the installation mechanism is rotatably provided with a double-thread transmission rod, sliding blocks are arranged at the upper end and the lower end of the outside of the double-thread transmission rod, the rear ends of the sliding blocks are fixed with the movable installation plate, and the upper end of the double-thread transmission rod is fixedly provided with an octagonal adjusting wheel.

Preferably, the outer shell and the mounting mechanism are made of crosslinked polyethylene.

Preferably, the upper end of the outer shell is provided with three input termination trunking, and the lower end of the outer shell is provided with three output termination trunking.

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

1. the shell body of the utility model is made of crosslinked polyethylene, has good heat resistance, can not be decomposed or carbonized below 200 ℃, can be operated at 90 ℃ for a long time, has good insulating property, has small dielectric loss tangent value, is not greatly influenced by temperature, has higher hardness, rigidity, wear resistance and impact resistance, is not easy to crack, has stronger acid and alkali resistance and oil resistance, and has less harm to environment due to the combustion products mainly comprising water and carbon dioxide, thereby meeting the requirement of environmental protection.

2. According to the utility model, the heat radiating copper pipes are arranged on two sides of the inner part of the outer shell body, penetrate through and extend to the upper end and the lower end of the outer shell body, the outer wall is sealed with the outer shell body, the plurality of heat radiating copper sheets are arranged outside the heat radiating copper pipes, when the elements in the outer shell body radiate heat, the heat radiating copper sheets transmit the heat to the inner part of the heat radiating copper pipes, the inner fins in the inner part of the heat radiating copper pipes can not block the through holes, so that the heat is radiated in the through holes, the ventilation mechanism is arranged in the general electric cabinet, air can circulate from the inner part of the heat radiating copper pipes, heat transmitted from the inner part of the outer shell body is taken away, meanwhile, the heat radiating flares at the upper end and the lower end of the heat radiating copper pipes are in a conical structure, the air can accelerate the heat radiating copper pipes, so that the heat radiating effect is improved, in addition, the arrangement positions of the connecting sheets can not block the inner elements, the heat absorbing range can be improved, the heat radiating efficiency can be further improved, the structure can ensure that the heat is discharged in time on the premise that the inner part of the outer shell body is sealed, and the service life of the elements is even the effect is avoided.

3. According to the utility model, when the circuit breaker is installed by adopting the flexible installation structure, the circuit breaker is only required to be hung on the installation frame in the electrical cabinet, the tool is used to extend into the inside of the octagonal adjusting wheel to rotate, so that the double-thread transmission rod is driven to rotate, and the rotary motion is converted into the linear motion under the friction of the sliding block and the double-thread transmission rod, so that the two movable installation plates are displaced in opposite directions and gradually displace towards the direction of the installation frame until the two movable installation plates are attached to the installation frame, and the circuit breaker is fixed with the installation frame in the electrical cabinet.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a perspective view of a heat dissipating copper tube according to the present utility model;

FIG. 3 is a schematic diagram of the internal structure of a heat dissipation copper pipe according to the present utility model;

fig. 4 is a schematic diagram of a transmission structure of a movable mounting plate according to the present utility model.

In the figure: 1. an outer housing; 2. a parameter table; 3. an opening and closing handle; 4. a reset switch; 5. the input end is connected with the wire slot; 6. the output end is connected with the wire slot; 7. radiating and flaring; 8. a mounting mechanism; 9. an octagonal adjusting wheel; 10. a movable mounting plate; 11. a heat dissipation copper pipe; 12. a heat dissipation copper sheet; 13. a connecting sheet; 14. an inner fin; 15. a transmission cavity; 16. a double-thread transmission rod; 17. a sliding block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, an embodiment of the present utility model is provided: an environment-friendly molded case circuit breaker comprises an outer shell 1, wherein an opening and closing handle 3 is arranged at the middle position of the front end surface of the outer shell 1, a parameter table 2 is arranged on one side of the front end surface of the outer shell 1, and a reset switch 4 is arranged on the other side of the front end surface of the outer shell 1; further comprises:

the heat dissipation copper pipes 11 are arranged on two sides of the inside of the outer shell 1, the heat dissipation copper pipes 11 are in sealing connection with the outer shell 1, two ends of each heat dissipation copper pipe 11 extend to the outside of the outer shell 1, one end of each heat dissipation copper pipe 11, which is positioned outside the outer shell 1, is fixedly provided with a heat dissipation flaring 7, and the heat dissipation flaring 7 is in a conical structure;

the installation mechanism 8 is arranged at the rear end of the outer shell 1, the installation mechanism 8 is fixedly connected with the outer shell 1, the movable installation plate 10 is symmetrically installed on the upper portion and the lower portion of the rear end of the installation mechanism 8, and the movable installation plate 10 and the installation mechanism 8 are limited in a sliding mode.

When the internal element of shell body 1 gives off heat, through the inside that heat dissipation copper sheet 12 will heat transfer to heat dissipation copper pipe 11, be located the inside inner fin 14 of heat dissipation copper pipe 11 and can not block up the through-hole to give off heat at the through-hole is inside, general regulator cubicle all is equipped with ventilation mechanism, and the inside circulation of heat dissipation copper pipe 11 can be followed to the air, thereby takes away the heat that passes out from shell body 1 inside, and the heat dissipation flaring 7 of the upper and lower extreme is the toper structure on the heat dissipation copper pipe 11 simultaneously, can accelerate it when the air is got into, thereby improves the radiating effect.

Referring to fig. 2 and 3, a plurality of heat dissipation copper sheets 12 distributed at equal intervals in sequence are arranged on the outer wall of one end of the inner part of the outer shell body 1 of the heat dissipation copper tube 11, a plurality of inner fins 14 distributed at equal intervals in sequence are arranged in the inner part of the heat dissipation copper tube 11, and two ends of each inner fin 14 are fixedly connected with the heat dissipation copper sheets 12 respectively, so that heat can be discharged timely on the premise of ensuring the inner sealing of the outer shell body 1, and the influence on the service life and even the safety of elements is avoided.

Referring to fig. 2, connecting pieces 13 are disposed at the upper and lower ends between the heat dissipation copper tubes 11, the connecting pieces 13 are located inside the outer shell 1, the arrangement positions of the connecting pieces 13 do not shield the inner elements, the heat absorption range can be increased, and the heat dissipation efficiency is further improved.

Referring to fig. 4, the double-thread transmission rod 16 is rotatably installed in the installation mechanism 8, the sliding blocks 17 are installed at the upper end and the lower end of the outer portion of the double-thread transmission rod 16, the rear ends of the sliding blocks 17 are fixed with the movable installation plate 10, and the octagonal adjustment wheels 9 are fixedly arranged at the upper ends of the double-thread transmission rod 16.

Further, the outer shell 1 and the mounting mechanism 8 are made of crosslinked polyethylene, the heat resistance is good, the decomposition and carbonization can not be carried out at the temperature below 200 ℃, the long-term working temperature can reach 90 ℃, the insulating property is good, the dielectric loss tangent value is small, the insulating property is not greatly influenced by temperature, the hardness, the rigidity, the wear resistance and the impact resistance are high, the cracking is not easy to generate, the acid-base resistance and the oil resistance are high, the combustion products are mainly water and carbon dioxide, the harm to the environment is small, and the environment protection requirement is met.

Referring to fig. 1, three input termination trunking 5 are provided at the upper end of the outer casing 1, and three output termination trunking 6 are provided at the lower end of the outer casing 1 for connecting lines.

Working principle: when the circuit breaker is installed, the circuit breaker is only required to be hung on an installation frame in the electrical cabinet, the tool is used for extending to the inside of the octagonal adjusting wheel 9 to rotate the octagonal adjusting wheel, so that the double-thread transmission rod 16 is driven to rotate, rotary motion is converted into linear motion under the friction of the sliding block 17 and the double-thread transmission rod 16, the two movable installation plates 10 are enabled to be displaced in opposite directions and gradually displaced towards the direction of the installation frame until the two movable installation plates are attached to the installation frame, and the circuit breaker is fixed with the installation frame in the electrical cabinet.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Claims

1. The environment-friendly molded case circuit breaker comprises an outer shell (1), wherein an opening and closing handle (3) is arranged at the middle position of the front end face of the outer shell (1), a parameter meter (2) is arranged on one side of the front end face of the outer shell (1), and a reset switch (4) is arranged on the other side of the front end face of the outer shell (1);

the method is characterized in that: further comprises:

the heat dissipation copper pipes (11) are arranged on two sides of the inside of the outer shell (1), the heat dissipation copper pipes (11) are connected with the outer shell (1) in a sealing mode, two ends of each heat dissipation copper pipe (11) extend to the outside of the outer shell (1), one end, located outside the outer shell (1), of each heat dissipation copper pipe (11) is fixedly provided with a heat dissipation flaring (7), and each heat dissipation flaring (7) is of a conical structure;

the installation mechanism (8) is arranged at the rear end of the outer shell (1), the installation mechanism (8) is fixedly connected with the outer shell (1), the movable installation plates (10) are symmetrically installed at the rear end of the installation mechanism (8) up and down, and the movable installation plates (10) are limited by sliding with the installation mechanism (8).

2. An environmentally friendly molded case circuit breaker according to claim 1, wherein: the heat dissipation copper pipe (11) is provided with a plurality of heat dissipation copper sheets (12) which are distributed at equal intervals in sequence on the outer wall of one end of the inner part of the outer shell (1), a plurality of inner fins (14) which are distributed at equal intervals in sequence are arranged in the heat dissipation copper pipe (11), and two ends of each inner fin (14) are fixedly connected with the heat dissipation copper sheets (12) respectively.

3. An environmentally friendly molded case circuit breaker according to claim 2, wherein: connecting pieces (13) are arranged at the upper end and the lower end between the radiating copper pipes (11), and the connecting pieces (13) are positioned in the outer shell (1).

4. An environmentally friendly molded case circuit breaker according to claim 1, wherein: the inside rotation of installation mechanism (8) is installed double-thread drive pole (16), sliding block (17) are all installed to the upper and lower end of double-thread drive pole (16) outside, and the rear end and the movable mounting panel (10) of sliding block (17) are fixed mutually, the upper end of double-thread drive pole (16) is fixed to be provided with octagonal adjustment wheel (9).

5. An environmentally friendly molded case circuit breaker according to claim 1, wherein: the outer shell (1) and the mounting mechanism (8) are made of crosslinked polyethylene.

6. An environmentally friendly molded case circuit breaker according to claim 1, wherein: the upper end of the outer shell (1) is provided with three input termination trunking (5), and the lower end of the outer shell (1) is provided with three output termination trunking (6).