CN113948343A

CN113948343A - Novel intelligent molded case circuit breaker

Info

Publication number: CN113948343A
Application number: CN202110993630.3A
Authority: CN
Inventors: 陈超; 卜权; 孙侃; 吕敏
Original assignee: Jiayuan Technology Co Ltd
Current assignee: Jiayuan Technology Co Ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-01-18

Abstract

The invention belongs to the field of electrical engineering, and particularly relates to a novel intelligent molded case circuit breaker, which comprises a bottom plate, a circuit breaker main body, a shell and a wiring part, wherein the circuit breaker main body is provided with a plurality of first connecting wires; the shell is arranged at the top end of the bottom plate, a breaker main body is arranged between the bottom plate and the shell, and wiring parts are arranged on two sides of the bottom plate; the rapid maintenance device comprises a bottom plate, a shell, a base plate and a sleeve rod, and is characterized in that a rapid maintenance mechanism is arranged at the joint of the bottom plate and the shell, the rapid maintenance mechanism comprises an insertion block, a clamping block, a sleeve rod, a limiting spring, a hinge rod, a movable groove, a movable block and a push block, the insertion block is fixedly connected to the bottom end of the shell, the top end of the bottom plate is provided with an insertion groove, the insertion block is inserted into the insertion groove, the insertion block is provided with a clamping groove, one side of the clamping block, which is close to the clamping groove, is clamped with the clamping groove, the bottom plate is internally provided with a movable cavity, the clamping block is sleeved in the movable cavity, and the sleeve rod is sleeved in the clamping block; the circuit breaker main body is convenient to inspect and maintain through the quick maintenance mechanism.

Description

Novel intelligent molded case circuit breaker

Technical Field

The invention relates to the field of electrical engineering, in particular to a novel intelligent molded case circuit breaker.

Background

When distributing electric energy, a circuit breaker, also called an air switch, is often used to protect an electric motor or an electric appliance.

The circuit breaker is a switching device which can close, bear and break the current under the condition of a normal loop and can close, bear and break the current under the condition of an abnormal loop within a specified time, and when the electrical appliances in the circuit have faults of serious overload, short circuit, undervoltage and the like, the circuit breaker can automatically cut off the circuit to protect the electrical appliances in the circuit.

The existing circuit breakers are mostly of an integrated structure, and are inconvenient to maintain, when the circuit breakers are maintained, screws for fixing on the circuit breakers are unscrewed one by one and buckles are broken off, and then the interiors of the circuit breakers can be checked, so that time and labor are wasted; therefore, a novel intelligent molded case circuit breaker is proposed to solve the above problems.

Disclosure of Invention

In order to make up for the defects of the prior art, the problem that the existing circuit breaker is inconvenient to maintain due to an integrated structure is solved, and the invention provides a novel intelligent molded case circuit breaker.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a novel intelligent molded case circuit breaker, which comprises a bottom plate, a circuit breaker main body, a shell and a wiring part, wherein the circuit breaker main body is provided with a circuit board; the shell is arranged at the top end of the bottom plate, a breaker main body is arranged between the bottom plate and the shell, and wiring parts are arranged on two sides of the bottom plate; the connection part of the bottom plate and the shell is provided with a quick maintenance mechanism, the quick maintenance mechanism comprises an insertion block, a clamping block, a sleeve rod, a limiting spring, a hinge rod, a movable groove, a movable block and a push block, the insertion block is fixedly connected with the bottom end of the shell, the top end of the bottom plate is provided with an insertion groove, the insertion block is inserted in the insertion groove, the insertion block is provided with a clamping groove, one side of the clamping block, which is close to the clamping groove, is clamped with the clamping groove, the bottom plate is internally provided with a movable cavity, the movable cavity is sleeved with the clamping block, the sleeve rod is sleeved in the clamping block, the limiting spring is wound on the outer side of the sleeve rod, one end, which is close to the clamping block, of the hinge rod is movably connected with the clamping block through a rotating shaft, the movable groove is opened and closed on the hinge rod, the movable block is slidably connected in the movable groove, the movable groove is fixedly connected in the movable cavity, and the push block is fixedly connected with one end, which is far away from the clamping block, of the hinge rod through the rotating shaft, the circuit breaker main body is convenient to inspect and maintain through the quick maintenance mechanism.

Preferably, the top of shell is provided with the heat conduction piece, and the bottom of heat conduction piece closely laminates with the circuit breaker main part, the ejector pad rubberizing is stained with the rubber pad, and has seted up anti-skidding line on the rubber pad, plays through the effect of heat conduction piece and carries out radiating effect to the circuit breaker main part, plays skid-proof effect through the effect of rubber pad on the ejector pad.

Preferably, one side of the limiting spring close to the clamping block is fixedly connected with the clamping block, one side of the limiting spring far away from the clamping block is fixedly connected inside the movable cavity, and the effect of enabling the clamping block to automatically rebound is achieved through the action of the reducing force of the limiting spring.

Preferably, be provided with quick replacement mechanism between bottom plate and the wiring portion, quick replacement mechanism includes spread groove, constant head tank, locating piece, location chamber, positioning spring and bolt, the both sides at the bottom plate are seted up to the spread groove, and one side that wiring portion is close to the bottom plate inserts the inside of establishing at the spread groove, the constant head tank is seted up in the wiring portion, locating piece and constant head tank block, the top at the spread groove is seted up to the location chamber, and the inside cover in location chamber is equipped with the locating piece, positioning spring sets up the inside in location chamber, the bolt runs through spread groove and wiring portion to with wiring portion threaded connection, play the effect of being convenient for change the wiring portion of damage through quick replacement mechanism.

Preferably, one side that the locating piece is close to the constant head tank is circular-arc design, and the locating piece cooperatees with the constant head tank, plays the effect of carrying out assistance-localization real-time to the wiring portion through locating piece and constant head tank complex effect.

Preferably, both sides of one end, close to the positioning spring, of the positioning block are fixedly connected with moving blocks, the moving blocks are connected inside the moving grooves in a sliding mode, the moving grooves are formed in both sides of the inside of the positioning cavity, and the effect that the positioning block moves more smoothly is achieved through the combined effect of the moving blocks and the moving grooves.

Preferably, the shell both sides are close to the all fixedly connected with cover blocks of position department at center, the cover groove has been seted up to one side that wiring portion top is close to the shell, and cover groove and cover block, the bottom fixedly connected with joint block of cover block, and joint block and joint groove block, the bottom in cover inslot portion is seted up in the joint groove, plays the effect of being connected the location between wiring portion and the shell through joint groove and joint block complex effect.

The invention has the advantages that:

1. according to the invention, through the structural design of the plug block, the fixture block, the loop bar, the limiting spring, the hinge rod, the movable groove, the movable block and the push block, the function of conveniently assembling and maintaining the circuit breaker is realized, the plug block is limited through the combination effect of the clamping groove and the fixture block, the effect of automatically rebounding the fixture block is realized through the combination effect of the limiting spring and the loop bar, the limitation on the plug block is conveniently released by releasing the clamping between the fixture block and the clamping groove through the combination effect of the hinge rod, the movable groove and the movable block, the problem that most of the existing circuit breakers are of an integrated structure and are inconvenient in maintenance is solved, and the maintenance of the interior of the circuit breaker is convenient;

2. according to the invention, through the structural design of the connecting groove, the positioning block, the positioning cavity and the positioning spring, the function of conveniently replacing the wiring part is realized, the wiring part is fixed through the combined action of the connecting groove, the positioning block, the positioning cavity and the positioning spring, the effect of conveniently disassembling and replacing the wiring part is achieved, the problem that the wiring part can be damaged after the existing circuit breaker is used for a long time is solved, and the durability of the circuit breaker is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic sectional view illustrating a first embodiment of the present invention;

FIG. 2 is an enlarged schematic view of a portion A of FIG. 1 according to the first embodiment;

FIG. 3 is an enlarged structural diagram of a portion B in FIG. 2 according to the first embodiment;

FIG. 4 is an enlarged structural view of the first embodiment at C in FIG. 2;

FIG. 5 is an enlarged structural view of the first embodiment at D in FIG. 1;

FIG. 6 is a schematic perspective view of a first embodiment;

fig. 7 is a schematic structural diagram of a partial front cross section in the second embodiment.

In the figure: 1. a base plate; 2. a circuit breaker main body; 3. a housing; 41. inserting a block; 42. a slot; 43. a card slot; 44. a clamping block; 45. a movable cavity; 46. a loop bar; 47. a limiting spring; 48. a hinged lever; 49. a movable groove; 410. a movable block; 411. a heat conducting block; 412. a push block; 413. a slider; 414. a chute; 5. a wiring portion; 61. connecting grooves; 62. positioning a groove; 63. positioning blocks; 64. a positioning cavity; 65. a positioning spring; 66. a moving block; 67. a moving groove; 68. a bolt; 69. sleeving a groove; 610. sleeving blocks; 611. a clamping block; 612. a clamping groove.

Detailed Description

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

Example one

Referring to fig. 1 to 6, a novel intelligent molded case circuit breaker includes a base plate 1, a circuit breaker main body 2, a case 3, and a wiring portion 5; the shell 3 is arranged at the top end of the bottom plate 1, the breaker main body 2 is arranged between the bottom plate 1 and the shell 3, and the wiring parts 5 are arranged on two sides of the bottom plate 1; the connection part of the bottom plate 1 and the shell 3 is provided with a quick maintenance mechanism, the quick maintenance mechanism comprises an insertion block 41, a fixture block 44, a sleeve rod 46, a limiting spring 47, a hinged rod 48, a movable groove 49, a movable block 410 and a push block 412, the insertion block 41 is fixedly connected to the bottom end of the shell 3, the top end of the bottom plate 1 is provided with a slot 42, the insertion block 41 is inserted in the slot 42, the insertion block 41 is provided with a clamping groove 43, one side of the fixture block 44 close to the clamping groove 43 is clamped with the clamping groove 43, the bottom plate 1 is provided with a movable cavity 45, the movable cavity 45 is sleeved with the fixture block 44, the sleeve rod 46 is sleeved in the fixture block 44, the limiting spring 47 is wound on the outer side of the sleeve rod 46, one end of the hinged rod 48 close to the fixture block 44 is movably connected with the fixture block 44 through a rotating shaft, the movable groove 49 is opened and closed on the hinged rod 48, the movable block 410 is slidably connected in the movable groove 49, and the movable groove 49 is fixedly connected in the movable cavity 45, the pushing block 412 is fixedly connected with one end of the hinge rod 48 far away from the clamping block 44 through a rotating shaft;

during operation, the pushing block 412 is pushed, the pushing block 412 moves under the action of pushing force, the pushing block 412 moves under the action of the combination of the hinge rod 48, the movable groove 49 and the movable block 410 to drive the fixture block 44 to move in the opposite direction, the fixture block 44 moves towards the inside of the movable cavity 45 and extrudes the limiting spring 47, the limiting spring 47 generates elastic deformation, the fixture block 44 is disengaged from the clamping groove 43 at the moment, the limiting effect on the insertion block 41 is disengaged, and at the moment, the shell 3 is pulled upwards to release the connection between the shell 3 and the bottom plate 1.

The top end of the shell 3 is provided with a heat conducting block 411, the bottom end of the heat conducting block 411 is tightly attached to the breaker main body 2, a rubber pad is glued on the push block 412, and anti-skid grains are arranged on the rubber pad;

in operation, heat conduction piece 411 is the metal material can be effectual conducts to the produced heat on circuit breaker main part 2, prevent that circuit breaker main part 2 from accumulating inside the device at the produced heat of during operation, lead to the device to melt from inside, and the outside of heat conduction piece 411 is scribbled and has brushed insulating coating and prevent that the electric current from using heat conduction piece 411 to produce the injury to contact personnel as the conductor, the effect of the anti-skidding line of seting up through the rubber pad that glues on ejector pad 412 and the outside, play the effect of the frictional force between increase ejector pad 412 and the hand, prevent the slippage when promoting ejector pad 412.

One side of the limiting spring 47 close to the fixture block 44 is fixedly connected with the fixture block 44, and one side of the limiting spring 47 far away from the fixture block 44 is fixedly connected inside the movable cavity 45;

when the plug-in block 41 is inserted into the slot 42, the plug-in block 41 extrudes the clamping block 44, the clamping block 44 is extruded to move towards the inside of the movable cavity 45 under the action of the inclined surface formed on the clamping block 44 and extrudes the limiting spring 47, so that the limiting spring 47 elastically deforms, when the plug-in block 41 is inserted to the limit, the extrusion force of the plug-in block 41 on the clamping block 44 disappears, at the moment, the clamping block 44 is restored to the original position under the action of the reducing force of the limiting spring 47 and is clamped with the clamping groove 43, the effect of limiting the plug-in block 41 is achieved, and the bottom plate 1 is connected with the shell 3.

A quick replacement mechanism is arranged between the bottom plate 1 and the wiring part 5, the quick replacement mechanism comprises a connecting groove 61, a positioning groove 62, a positioning block 63, a positioning cavity 64, a positioning spring 65 and a bolt 68, the connecting groove 61 is arranged on two sides of the bottom plate 1, one side, close to the bottom plate 1, of the wiring part 5 is inserted into the connecting groove 61, the positioning groove 62 is arranged on the wiring part 5, the positioning block 63 is clamped with the positioning groove 62, the positioning cavity 64 is arranged at the top end of the connecting groove 61, the positioning block 63 is sleeved inside the positioning cavity 64, the positioning spring 65 is arranged inside the positioning cavity 64, and the bolt 68 penetrates through the connecting groove 61 and the wiring part 5 and is in threaded connection with the wiring part 5;

in operation, when the wiring portion 5 is to be installed, the bolt 68 is first loosened to release the position of the wiring portion 5 by the bolt 68, and then the wiring portion 5 is pulled toward the side away from the base plate 1, so that the wiring portion 5 presses the positioning block 63 by the pulling force, the positioning block 63 moves toward the inside of the positioning cavity 64 to press the positioning spring 65, the positioning spring 65 elastically deforms, and at this time, the positioning block 63 releases the engagement with the positioning groove 62, and the auxiliary positioning effect of the wiring portion 5 is released.

One side of the positioning block 63, which is close to the positioning groove 62, is designed in an arc shape, and the positioning block 63 is matched with the positioning groove 62;

during operation, the positioning block 63 and the positioning groove 62 are matched to play a role in assisting in positioning the wiring part 5.

Both sides of one end of the positioning block 63, which is close to the positioning spring 65, are fixedly connected with moving blocks 66, the moving blocks 66 are slidably connected inside moving grooves 67, and the moving grooves 67 are formed in both sides inside the positioning cavity 64;

during operation, the combined action of the moving block 66 and the moving groove 67 is used for lowering the friction force of the positioning block 63 during movement, so that the positioning block 63 is smoother during movement, and meanwhile, the combined action of the moving block 66 and the moving groove 67 is used for limiting the movement distance of the positioning block 63, so that the positioning block 63 is prevented from being separated from the positioning cavity 64.

The positions of two sides of the shell 3 close to the center are fixedly connected with sleeve blocks 610, one side of the top end of the wiring part 5 close to the shell 3 is provided with a sleeve groove 69, the sleeve groove 69 is clamped with the sleeve blocks 610, the bottom end of the sleeve blocks 610 is fixedly connected with a clamping block 611, the clamping block 611 is clamped with a clamping groove 612, and the clamping groove 612 is arranged at the bottom end inside the sleeve groove 69;

in operation, when the wire connecting portion 5 is pulled, the inner wall of the sleeve groove 69 presses the engaging piece 611, so that the engaging piece 611 is disengaged from the engaging groove 612, and the effect of assisting the positioning of the wire connecting portion 5 is released.

Example two

Referring to fig. 7, in a first comparative example, as another embodiment of the present invention, a sliding block 413 is fixedly connected to a top end of the fixture block 44 near the limiting spring 47, the sliding block 413 is slidably connected to an inside of the sliding groove 414, and the sliding groove 414 is disposed at a top end of the inside of the movable cavity 45; during operation, the slider 413 slides in the inside of spout 414 along with the removal synchronization of fixture block 44, the effect through slider 413 and spout 414 combination plays the frictional force that reduces fixture block 44 when removing and between the inner wall of activity chamber 45, prevent that fixture block 44 from blocking because of the frictional force with between the inner wall of activity chamber 45 when removing, make fixture block 44 more smooth and easy when removing, the effect of using slider 413 and spout 414 combination simultaneously plays the effect of carrying on spacingly to the displacement distance of fixture block 44, prevent that fixture block 44 from deviating from in the activity chamber 45.

When the shell 3 and the bottom plate 1 are connected, firstly, the pushing block 412 is pushed, the pushing block 412 moves under the action of the pushing force, the pushing block 412 moves under the action of the combination of the hinge rod 48, the movable groove 49 and the movable block 410 to drive the fixture block 44 to move in the opposite direction, so that the fixture block 44 moves towards the inside of the movable cavity 45 and presses the limiting spring 47, the limiting spring 47 generates elastic deformation, at the moment, the fixture block 44 is released from being clamped with the clamping groove 43, the limiting effect on the insertion block 41 is released, at the moment, the shell 3 is pulled upwards to release the connection between the shell 3 and the bottom plate 1, when the bottom plate 1 and the shell 3 are connected, firstly, the insertion block 41 is aligned with the insertion groove 42, then, the shell 3 is pushed downwards to enable the insertion block 41 to be inserted into the insertion groove 42, and when the insertion block 41 is inserted into the insertion groove 42, the insertion block 41 presses the fixture block 44, under the action of the inclined plane formed on the fixture block 44, the fixture block 44 is extruded to move towards the inside of the movable cavity 45 and extrude the limiting spring 47, so that the limiting spring 47 is elastically deformed, when the insert block 41 is inserted to the limit, the extrusion force of the insert block 41 to the fixture block 44 disappears, at the moment, the fixture block 44 is restored to the original position under the action of the reducing force of the limiting spring 47 and is clamped with the clamping groove 43, the effect of limiting the insert block 41 is achieved, and the bottom plate 1 is connected with the shell 3.

When the connection portion 5 is to be installed, the bolt 68 is loosened to release the limit of the connection portion 5 by the bolt 68, then the connection portion 5 is pulled to the side away from the bottom plate 1, the connection portion 5 extrudes the positioning block 63 under the action of the pulling force, the positioning block 63 moves towards the inside of the positioning cavity 64 and extrudes the positioning spring 65, the positioning spring 65 elastically deforms, at this time, the positioning block 63 releases the engagement with the positioning groove 62, the auxiliary positioning effect on the connection portion 5 is released, at the same time, the inner wall of the sleeve groove 69 extrudes the engagement block 611 when the connection portion 5 is pulled, the engagement block 611 releases the engagement with the engagement groove 612, the auxiliary positioning effect on the connection portion 5 is released, at this time, the connection portion 5 can be taken off, and the reverse operation can be performed when the connection portion 5 is to be installed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. The utility model provides a novel intelligence moulded case circuit breaker which characterized in that: comprises a bottom plate (1), a breaker main body (2), a shell (3) and a wiring part (5); the shell (3) is arranged at the top end of the bottom plate (1), a circuit breaker main body (2) is arranged between the bottom plate (1) and the shell (3), and wiring parts (5) are arranged on two sides of the bottom plate (1);

the fast overhaul mechanism is arranged at the joint of the bottom plate (1) and the shell (3) and comprises an inserting block (41), a clamping block (44), a sleeve rod (46), a limiting spring (47), a hinge rod (48), a movable groove (49), a movable block (410) and a pushing block (412), wherein the inserting block (41) is fixedly connected to the bottom end of the shell (3), an inserting groove (42) is formed in the top end of the bottom plate (1), the inserting block (41) is inserted in the inserting groove (42), a clamping groove (43) is formed in the inserting block (41), one side, close to the clamping groove (43), of the clamping block (44) is clamped with the clamping groove (43), a movable cavity (45) is formed in the bottom plate (1), the clamping block (44) is sleeved in the movable cavity (45), the sleeve rod (46) is sleeved in the clamping block (44), and the limiting spring (47) is wound on the outer side of the sleeve rod (46), one end of the hinge rod (48) close to the fixture block (44) is movably connected with the fixture block (44) through a rotating shaft, the movable groove (49) is opened and closed on the hinge rod (48), the movable block (410) is slidably connected inside the movable groove (49), the movable groove (49) is fixedly connected inside the movable cavity (45), and the push block (412) is fixedly connected with one end of the hinge rod (48) far away from the fixture block (44) through the rotating shaft.

2. The novel intelligent molded case circuit breaker according to claim 1, characterized in that: the top of shell (3) is provided with heat conduction piece (411), and the bottom of heat conduction piece (411) closely laminates with circuit breaker main part (2), the rubber pad has been glued to ejector pad (412), and has seted up anti-skidding line on the rubber pad.

3. The novel intelligent molded case circuit breaker according to claim 2, characterized in that: one side of the limiting spring (47) close to the clamping block (44) is fixedly connected with the clamping block (44), and one side of the limiting spring (47) far away from the clamping block (44) is fixedly connected inside the movable cavity (45).

4. The novel intelligent molded case circuit breaker according to claim 3, characterized in that: a quick replacement mechanism is arranged between the bottom plate (1) and the wiring part (5), the quick replacement mechanism comprises connecting grooves (61), positioning grooves (62), positioning blocks (63), positioning cavities (64), positioning springs (65) and bolts (68), the connecting grooves (61) are arranged on two sides of the bottom plate (1), and one side of the wiring part (5) close to the bottom plate (1) is inserted in the connecting groove (61), the positioning groove (62) is arranged on the wiring part (5), the positioning block (63) is clamped with the positioning groove (62), the positioning cavity (64) is arranged at the top end of the connecting groove (61), a positioning block (63) is sleeved in the positioning cavity (64), the positioning spring (65) is arranged in the positioning cavity (64), the bolt (68) penetrates through the connecting groove (61) and the wiring part (5) and is in threaded connection with the wiring part (5).

5. The novel intelligent molded case circuit breaker according to claim 4, characterized in that: one side of the positioning block (63) close to the positioning groove (62) is designed in an arc shape, and the positioning block (63) is matched with the positioning groove (62).

6. The novel intelligent molded case circuit breaker according to claim 5, characterized in that: both sides of one end, close to the positioning spring (65), of the positioning block (63) are fixedly connected with moving blocks (66), the moving blocks (66) are connected inside moving grooves (67) in a sliding mode, and the moving grooves (67) are formed in both sides of the inside of the positioning cavity (64).

7. The novel intelligent molded case circuit breaker of claim 6, wherein: the utility model discloses a connection terminal, including shell (3), wiring portion (5), cover groove (69) have been seted up to one side that shell (3) top is close to the position department of center all fixedly connected with cover block (610), and cover groove (69) and cover block (610) block, the bottom fixedly connected with joint block (611) of cover block (610), and joint block (611) and joint groove (612) block, the bottom in cover groove (69) inside is seted up in joint groove (612).