CN216597458U

CN216597458U - Three-position electrical indicating device of circuit breaker

Info

Publication number: CN216597458U
Application number: CN202123448126.XU
Authority: CN
Inventors: 张韶松; 何力介; 李普初
Original assignee: Siqi Technology Co ltd
Current assignee: Siqi Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-24
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a three-position electric indicating device of a circuit breaker, which comprises a shell and an indicating component arranged in the shell, wherein the indicating component comprises a switching-off connecting rod which is arranged in the shell in a rotating way and is in linkage fit with a rotating shaft of the circuit breaker, a first torsional spring which is arranged between the switching-off connecting rod and the shell, a switching-off indicating disc which is arranged in the shell in a rotating way and is in linkage fit with the switching-off connecting rod, a tripping connecting rod which is arranged in the shell in a rotating way and is in linkage fit with a lock catch of the circuit breaker, a second torsional spring which is arranged between the tripping connecting rod and the shell, and a tripping indicating disc which is coaxially arranged with the switching-off indicating disc and is in linkage fit with the tripping connecting rod, the switching-off indicating disc is respectively provided with a switching-on indicating plate and a switching-off indicating plate, and the tripping indicating plate is provided with a tripping indicating plate, and a position signal acquisition module matched with the opening and closing connecting rod and the tripping connecting rod is arranged in the shell. The utility model has the advantages of simple structure, stable and reliable performance, accurate, the modular instruction.

Description

Three-position electrical indicating device of circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to three-position electrical indicating device of circuit breaker.

Background

The molded case circuit breaker is widely applied to the departments of industry and agriculture, traffic, mines, civil buildings, national defense and the like, plays a great role in the transmission and distribution of electric power and the protection of motors, and is a product with large use amount and wide use range in low-voltage electric appliances. A molded case circuit breaker is a switching device capable of closing, carrying, and opening a current under a normal circuit condition, and closing, carrying, and opening a current under an abnormal circuit condition (including a short-circuit condition) within a prescribed time. The molded case circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur. With the progress of science and technology and the development of economic society, the nation strongly supports the combination of an electric power system and the Internet of things to realize the construction of an intelligent power grid. Therefore, the demand for the intellectualization of the molded case circuit breaker is increasing. All be provided with operating condition monitoring devices on current moulded case circuit breaker, however, this moulded case circuit breaker's operating condition monitoring devices can't realize three position (closing position, separating brake position, dropout warning position) electric visual indication, can't realize the signal acquisition of three positions, can't upload the tripping signal of circuit breaker for information management platform, can't ensure maintainer's personal safety, have great potential safety hazard.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance are reliable, instruct accurate, modular three-position electrical indicating device.

In order to achieve the above object, the utility model discloses a three-position electrical indicating device of circuit breaker, including the casing, set up the instruction subassembly in the casing, the instruction subassembly is including setting up rotating the setting in the casing and with circuit breaker pivot linkage complex divide-shut brake connecting rod, set up the first torsional spring between divide-shut brake connecting rod and casing, rotate the setting in the casing and with divide-shut brake connecting rod linkage complex divide-shut brake indicator panel, rotate the setting in the casing and with circuit breaker hasp linkage complex trip connecting rod, set up the second torsional spring between trip connecting rod and casing, with divide-shut brake indicator panel coaxial arrangement and with the complex trip indicator panel of trip connecting rod linkage, divide-shut brake indicator panel on be provided with closing sign, separating brake sign respectively, trip indicator panel on be provided with the trip sign, the casing in be provided with and separate-shut brake connecting rod, And the position signal acquisition module is matched with the tripping connecting rod.

The beneficial effect of above-mentioned structure does: the indicating device adopts a modular structure design, the structure is more compact, the assembly is more convenient and faster, the indicating device can realize three-position (switch-on position, switch-off position and tripping alarm position) electrical visual indication, the switch-on and switch-off indication and the tripping indication can not interfere with each other, the three-position electrical indication of the circuit breaker can be accurately realized, a user can visually know the working state of the circuit breaker, and the position signal acquisition module can realize the signal acquisition of the three positions, thereby realizing the intelligent monitoring of the circuit breaker. When the indicating device works and the breaker is opened, the rotating shaft of the breaker pushes the opening and closing connecting rod to act, and the opening and closing connecting rod drives the opening and closing indicating disc to rotate to the opening indicating plate, so that opening and closing indication is realized; when the circuit breaker is switched on, the switching-on and switching-off connecting rod loses the limitation of a rotating shaft of the circuit breaker, and the switching-on and switching-off connecting rod drives the switching-on and switching-off indicating plate to rotate to the position of a switching-on indicating plate, so that switching-on indication is realized; when the circuit breaker is tripped, the circuit breaker lock catch drives the tripping connecting rod to act, and the tripping connecting rod drives the tripping indicating plate to rotate to the tripping indicating plate, so that tripping indication is realized. Therefore, the three-position electrical indicating device of the circuit breaker has the advantages of simple structure, stable and reliable performance, accurate indication and modularization.

Particularly, the position signal adopts the module including set up in the casing and with divide-shut brake connecting rod matched with first micro-gap switch, set up in the casing and with tripping connection rod matched with second micro-gap switch, divide-shut brake connecting rod move and can trigger first micro-gap switch along with the circuit breaker pivot, tripping connection rod move and can trigger second micro-gap switch along with the circuit breaker hasp. The first microswitch and the second microswitch can respectively monitor the working positions of the switching-on connecting rod and the switching-off connecting rod in real time, so that the three-position signal acquisition function of the indicating device is realized.

Particularly, the tripping device is characterized in that a positioning hole is formed in the tripping connecting rod, the positioning hole is clamped on the positioning rod of the shell and forms the linkage and matching of the tripping connecting rod and the positioning rod, a limiting piece which is abutted to the tripping driving piece is arranged at one end of the tripping connecting rod, the tripping driving piece is rotatably arranged on the framework of the circuit breaker and is in linkage matching with the lock catch of the circuit breaker, a poking rod part is arranged at the other end of the tripping connecting rod, a guiding waist-shaped hole is formed in the tripping indicating disc, the poking rod part is inserted into the guiding waist-shaped hole in a penetrating mode, and the poking rod part acts along with the tripping connecting rod and can slide in the guiding waist-shaped hole in a reciprocating mode and forms the linkage matching of the tripping indicating disc and the poking rod part. The tripping connecting rod and the positioning rod of the shell are assembled in a clamping matching mode, so that the tripping connecting rod and the shell are convenient to assemble, and the assembly is more convenient. And the tripping indicating disc is shifted by the tripping connecting rod through the poking rod part, so that the tripping indicating disc can be reliably driven by the tripping connecting rod, and the working reliability of the indicating device is favorably improved.

Particularly, the divide-shut brake connecting rod on be provided with the card hole, the card hole block on the locating lever, constitute the cooperation of being connected in the rotation of divide-shut brake connecting rod and locating lever, one end of divide-shut brake connecting rod have and contradict two contact pads in the circuit breaker pivot, the other end of divide-shut brake connecting rod stir the axial region, divide-shut brake indicator panel on be provided with the waist type hole that slides that stirs axial region matched with, stir the axial region and alternate and slide in the waist type downthehole reciprocating of sliding along with the motion of divide-shut brake connecting rod, and constitute the linkage cooperation of divide-shut brake indicator panel and stirring axial region. The opening and closing connecting rod is clamped on the positioning rod in the shell, so that the opening and closing connecting rod and the shell are assembled conveniently, the opening and closing indicating disc is stirred by the opening and closing connecting rod through the stirring shaft part, the opening and closing indicating disc can be reliably driven by the opening and closing connecting rod, and the working reliability of the indicating device is improved.

Particularly, the casing include the drain pan, set up the apron on the drain pan, apron and drain pan between be formed with the accommodation space that is used for placing the instruction subassembly, the drain pan on be provided with the instruction hole, the drain pan in correspond first micro-gap switch, second micro-gap switch department and be provided with the location axle, first micro-gap switch, second micro-gap switch on be provided with the card hole with location axle matched with, the location axle alternate in the card hole, and constitute the joint cooperation of first micro-gap switch, second micro-gap switch and drain pan. First micro-gap switch, second micro-gap switch block are on the location axle in the drain pan to be convenient for the assembly of first micro-gap switch, second micro-gap switch and base, it is more convenient to assemble.

Particularly, the two sides of the cover plate are respectively provided with a clamping plate, the clamping plates are provided with clamping holes, the bottom shell is provided with a clamping block matched with the clamping holes, and the clamping block is clamped in the clamping holes and forms clamping matching of the bottom shell and the cover plate. The cover plate is connected with the bottom shell in a clamping matching mode, so that the cover plate and the bottom shell are convenient to assemble, and the assembly is more convenient.

Drawings

Fig. 1 is a cross-sectional view of a circuit breaker according to an embodiment of the present invention.

Fig. 2 is the internal structure diagram of the circuit breaker of the embodiment of the present invention.

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

Fig. 4 is an internal structure diagram of the embodiment of the present invention.

Detailed Description

As shown in fig. 1-4, an embodiment of the present invention is a three-position electrical indicating device for a circuit breaker, including a housing 10, an indicating assembly 20 disposed in the housing 10, the indicating assembly 20 includes a switching connecting rod 21 rotatably disposed in the housing 10 and cooperating with a rotating shaft 30 of the circuit breaker, a first torsion spring 22 disposed between the switching connecting rod 21 and the housing 10, a switching indicating plate 23 rotatably disposed in the housing 10 and cooperating with the switching connecting rod 21, a tripping connecting rod 24 rotatably disposed in the housing 10 and cooperating with a lock catch 31 of the circuit breaker, a second torsion spring 25 disposed between the tripping connecting rod 24 and the housing 10, a tripping indicating plate 26 coaxially disposed with the switching indicating plate 23 and cooperating with the tripping connecting rod 24, the switching indicating plate 23 being respectively provided with a switching indicator 231 and a switching indicator 232, the tripping indicator 26 being provided with a tripping indicator 261, and a position signal acquisition module 27 matched with the switching-on/off connecting rod 21 and the tripping connecting rod 24 is arranged in the shell 10.

As shown in fig. 2 and 3, the position signal applying module 27 includes a first micro switch 271 disposed in the housing 10 and engaged with the switching-on/off link 21, and a second micro switch 272 disposed in the housing 10 and engaged with the tripping link 24, the switching-on/off link 21 moves along with the circuit breaker rotation shaft 30 and can trigger the first micro switch 271, and the tripping link 24 moves along with the circuit breaker latch 31 and can trigger the second micro switch 272. The first microswitch and the second microswitch can respectively monitor the working positions of the switching-on connecting rod and the switching-off connecting rod in real time, so that the three-position signal acquisition function of the indicating device is realized. The trip indicating plate 26 is provided with a guiding kidney-shaped hole 262, the deflector rod portion 243 penetrates through the guiding kidney-shaped hole 262, the deflector rod portion 243 moves along with the trip connecting rod 24 and can slide in the guiding kidney-shaped hole 262 in a reciprocating manner, and the tripping indicating plate 26 and the deflector rod portion 243 are in linkage fit. The tripping connecting rod and the positioning rod of the shell are assembled in a clamping matching mode, so that the tripping connecting rod and the shell are convenient to assemble, and the assembly is more convenient. And the tripping indicating disc is shifted by the tripping connecting rod through the poking rod part, so that the tripping indicating disc can be reliably driven by the tripping connecting rod, and the working reliability of the indicating device is favorably improved. The opening and closing connecting rod 21 on be provided with card hole 211, card hole 211 block on locating lever 11, constitute opening and closing connecting rod 21 and the cooperation of being connected of the rotation of locating lever 11, one end of opening and closing connecting rod 21 on have two conflict pieces 212 of contradicting on circuit breaker pivot 30, the other end of opening and closing connecting rod 21 have toggle shaft portion 213, opening and closing indicator 23 on be provided with the waist type hole 233 that slides that cooperatees with toggle shaft portion 213, toggle shaft portion 213 alternate in sliding waist type hole 233, toggle shaft portion 213 move and can slide in sliding waist type hole 233 along with opening and closing connecting rod 21 is reciprocal, and constitute the linkage cooperation of opening and closing indicator 23 and toggle shaft portion 213. The opening and closing connecting rod is clamped on the positioning rod in the shell, so that the opening and closing connecting rod and the shell are assembled conveniently, the opening and closing indicating disc is stirred by the opening and closing connecting rod through the stirring shaft part, the opening and closing indicating disc can be reliably driven by the opening and closing connecting rod, and the working reliability of the indicating device is improved.

As shown in fig. 3, the housing 10 includes a bottom case 12 and a cover plate 13 disposed on the bottom case 12, an accommodating space 100 for accommodating the indication component 20 is formed between the cover plate 13 and the bottom case 12, the bottom case 12 is provided with an indication hole 121, a positioning shaft 122 is disposed in the bottom case 12 corresponding to the first micro switch 271 and the second micro switch 272, the first micro switch 171 and the second micro switch 272 are provided with a clamping hole 273 matched with the positioning shaft 122, the positioning shaft 122 is inserted into the clamping hole 273, and the first micro switch 271, the second micro switch 272 and the bottom case 12 are in clamping fit. First micro-gap switch, second micro-gap switch block are on the location axle in the drain pan to be convenient for the assembly of first micro-gap switch, second micro-gap switch and base, it is more convenient to assemble. The two sides of the cover plate 13 are respectively provided with a clamping plate 131, the clamping plate 131 is provided with a clamping hole 132, the bottom case 12 is provided with a clamping block 123 matched with the clamping hole 132, and the clamping block 123 is clamped in the clamping hole 132 and forms clamping matching of the bottom case 12 and the cover plate 13. The cover plate is connected with the bottom shell in a clamping matching mode, so that the cover plate and the bottom shell are convenient to assemble, and the assembly is more convenient.

The indicating device adopts a modular structure design, the structure is more compact, the assembly is more convenient and faster, the indicating device can realize three-position (switch-on position, switch-off position and tripping alarm position) electrical visual indication, the switch-on and switch-off indication and the tripping indication can not interfere with each other, the three-position electrical indication of the circuit breaker can be accurately realized, a user can visually know the working state of the circuit breaker, and the position signal acquisition module can realize the signal acquisition of the three positions, thereby realizing the intelligent monitoring of the circuit breaker. When the indicating device works and the breaker is opened, the rotating shaft of the breaker pushes the opening and closing connecting rod to act, and the opening and closing connecting rod drives the opening and closing indicating disc to rotate to the opening indicating plate, so that opening and closing indication is realized; when the circuit breaker is switched on, the switching-on and switching-off connecting rod loses the limitation of a rotating shaft of the circuit breaker, and the switching-on and switching-off connecting rod drives the switching-on and switching-off indicating plate to rotate to the position of a switching-on indicating plate, so that switching-on indication is realized; when the circuit breaker is tripped, the circuit breaker lock catch drives the tripping connecting rod to act, and the tripping connecting rod drives the tripping indicating plate to rotate to the tripping indicating plate, so that tripping indication is realized. Therefore, the three-position electrical indicating device of the circuit breaker has the advantages of simple structure, stable and reliable performance, accurate indication and modular installation.

Claims

1. A three-position electrical indicating device of a circuit breaker is characterized in that: comprises a shell and an indicating component arranged in the shell, wherein the indicating component comprises a switching-on and switching-off connecting rod which is arranged in the shell in a rotating way and is in linkage fit with a rotating shaft of a circuit breaker, a first torsion spring which is arranged between the switching-on and switching-off connecting rod and the shell, a switching-on and switching-off indicating disc which is arranged in the shell in a rotating way and is in linkage fit with the switching-on and switching-off connecting rod, a tripping connecting rod which is arranged in the shell in a rotating way and is in linkage fit with a lock catch of the circuit breaker, a second torsion spring which is arranged between the tripping connecting rod and the shell, and a tripping indicating disc which is coaxially arranged with the switching-on and switching-off indicating disc and is in linkage fit with the tripping connecting rod, the opening and closing indicating disc is respectively provided with a closing indicating plate and an opening indicating plate, the tripping indicating disc is provided with a tripping indicating plate, and a position signal acquisition module matched with the opening and closing connecting rod and the tripping connecting rod is arranged in the shell.

2. The three-position electrical indicating device of a circuit breaker according to claim 1, wherein: the position signal adopt the module including set up in the casing and with divide-shut brake connecting rod matched with first micro-gap switch, set up in the casing and with dropout connecting rod matched with second micro-gap switch, divide-shut brake connecting rod move and can trigger first micro-gap switch along with the circuit breaker pivot, the dropout connecting rod move and can trigger second micro-gap switch along with the circuit breaker hasp.

3. Three-position electrical indicating device of a circuit breaker according to claim 1 or 2, characterized in that: the tripping indicating disc is provided with a guiding waist-shaped hole, the driving rod part is inserted into the guiding waist-shaped hole in a penetrating way, and the driving rod part can slide in the guiding waist-shaped hole in a reciprocating way along with the action of the tripping connecting rod and form linkage fit of the tripping indicating disc and the driving rod part.

4. A three-position electrical indicating device of a circuit breaker according to claim 3, wherein: the divide-shut brake connecting rod on be provided with the card hole, card hole block on the locating lever, constitute the rotation connection cooperation of divide-shut brake connecting rod and locating lever, one of divide-shut brake connecting rod serve and have two conflict contacts of contradicting in the circuit breaker pivot, the other end of divide-shut brake connecting rod stir the axial region, divide-shut brake indicator disc on be provided with and stir axial region matched with and slide waist type hole, stir the axial region and alternate and insert in sliding waist type hole, stir the axial region and just can be in sliding the downthehole reciprocating sliding of waist type along with the motion of divide-shut brake connecting rod, and constitute the linkage cooperation of divide-shut brake indicator disc and stir the axial region.

5. Three-position electrical indicating device of circuit breaker according to claim 1 or 2, characterized in that: the casing include the drain pan, set up the apron on the drain pan, apron and drain pan between be formed with the accommodation space that is used for placing the instruction subassembly, the drain pan on be provided with the instruction hole, the drain pan in correspond first micro-gap switch, second micro-gap switch department and be provided with the location axle, first micro-gap switch, second micro-gap switch on be provided with location axle matched with card hole, the location axle alternate in the card hole, and constitute the joint cooperation of first micro-gap switch, second micro-gap switch and drain pan.

6. The three-position electrical indicating device of a circuit breaker according to claim 5, wherein: the clamping plates are respectively arranged on two sides of the cover plate, clamping holes are formed in the clamping plates, clamping blocks matched with the clamping holes are arranged on the bottom shell, and the clamping blocks are clamped in the clamping holes to form clamping matching of the bottom shell and the cover plate.