CN112259420A

CN112259420A - Fusion type 4P moulded case circuit breaker

Info

Publication number: CN112259420A
Application number: CN202011188616.8A
Authority: CN
Inventors: 蔡寄文; 贾俊; 谈赛; 王云飞; 蒋罗庚; 成琴
Original assignee: Wasion Electric Co Ltd
Current assignee: Wasion Electric Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-01-22

Abstract

A fusion type 4P molded case circuit breaker comprises an insulating base plate, an adapter plate, a base, a middle cover and an upper cover arranged in sequence; The terminal and the outlet terminal are provided with installation holes for installing the voltage sensor and the temperature sensor. The voltage signal collected by the voltage sensor and the temperature signal collected by the temperature sensor are transmitted to the signal output terminal of the transformer module through the adapter board for summary output. The controller includes a processing module and a control module arranged in parallel, the processing module is in communication connection with the signal output end of the transformer module, the control module is in communication connection with the outside of the circuit breaker, after the upper cover and the middle cover body are installed The limit of the controller is fixed. The circuit breaker disclosed by the invention solves the problems of low utilization rate of internal space of the existing circuit breaker, inability to install more functional modules, low modularization of each part of the internal structure, complicated production and assembly, and the like.

Description

Fusion type 4P moulded case circuit breaker

Technical Field

The invention belongs to the technical field of circuit breakers, and particularly relates to a fusion type 4P molded case circuit breaker.

Background

Along with the continuous deepening of distribution thing networking degree, the circuit breaker is as a distribution system's partly, and is higher and higher to its direction demand of intellectuality, high integration, nevertheless considers actual transformation application scenario, can not have too big change to the size requirement of circuit breaker. On the basis of original standard circuit breaker overall dimension, built-in communication module, collection module, the control module who supports thing networking again, so provide higher requirement to its inner space's utilization ratio, present a great deal of scheme is mostly to be the addition on original product, causes inner space utilization ratio low, can't install more functional module, each partial modularization degree of inner structure is low, the production assembly is complicated, the production difficulty, a series of problems such as product fault rate height.

Disclosure of Invention

In order to overcome the problems in the prior art, the invention provides a fusion type 4P molded case circuit breaker, which aims to solve the problems that the internal space utilization rate of the existing circuit breaker is low, more functional modules cannot be installed, the modularization degree of each part of the internal structure is low, the production and assembly are complex and the like.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the invention provides a fusion type 4P molded case circuit breaker, which comprises an insulating bottom plate, an adapter plate, a base, a middle cover and an upper cover which are sequentially arranged;

the base comprises a base body, and a mutual inductor module and a release are arranged on the base body; the wire inlet end and the wire outlet end of the base body are provided with mounting holes, the mounting holes are used for mounting a voltage sensor and a temperature sensor, and a voltage signal acquired by the voltage sensor and a temperature signal acquired by the temperature sensor are transmitted to the signal output end of the mutual inductor module through the adapter plate to be collected and output;

the middle cover comprises a middle cover body and a controller, and a middle cover groove is formed in the middle cover body; the controller comprises a processing module and a control module which are arranged in parallel, the processing module is arranged in the middle cover groove and is in communication connection with the signal output end of the mutual inductor module, the control module is arranged outside the middle cover groove, and the control module is in communication connection with the outside of the circuit breaker;

the upper cover and the middle cover body are mounted and then are limited and fixed to the controller.

In a preferred embodiment, the base body further includes an adapter plate mounting groove, an adapter plate is mounted in the adapter plate mounting groove, and the adapter plate is packaged on the base body through the insulating bottom plate.

In a preferred embodiment, in the production process, the base body further comprises a wiring groove, and the voltage sensor and the temperature sensor connecting wire are connected with the adapter plate after penetrating through the wiring groove.

In a preferred embodiment, the base body further includes a transformer module mounting hole for mounting the transformer module;

and the tripper mounting hole is used for mounting the tripper.

In a preferred embodiment, the transformer module includes a mounting housing, a three-phase ac transformer, and a PCB board; the three-phase alternating current transformer is arranged in the mounting shell, and the PCB is arranged on one side of the mounting shell; one end of the PCB is provided with a current transformer interface and a switching port, and the other end of the PCB is provided with a switching welding leg.

In a preferred embodiment, the processing module is provided with a pin, and the pin is connected with the switching port of the transformer module.

In a preferred embodiment, the control module is provided with a communication interface and a liquid crystal display, the communication interface is used for establishing communication connection with the outside, and the liquid crystal display is used for establishing human-computer interface communication with the outside.

In a preferred embodiment, the upper cover is provided with an indicator lamp through hole, a communication hole and a liquid crystal viewing hole.

In a preferred embodiment, the base body is further provided with a base fixing hole, the middle cover body is provided with an embedded nut, the upper cover is provided with an upper cover fixing hole, and the embedded nut is matched with the base fixing hole and the upper cover fixing hole through screws respectively for fixing the base body, the middle cover body and the upper cover.

In a preferred embodiment, the instrument transformer is externally provided with a label.

The invention has the following beneficial effects:

(1) the invention discloses a fusion type 4P molded case circuit breaker, which integrates a mutual inductor module and a release in a base respectively, integrates a controller in a middle cover, transmits collected voltage signals and temperature signals to a signal input end of the mutual inductor module for gathering by a transfer board, and outputs the gathered voltage signals and temperature signals to the controller for voltage and temperature control so as to adapt to different use environments and form a feedback loop based on voltage and temperature control.

(2) According to the fusion type 4P molded case circuit breaker disclosed by the invention, due to the adoption of a four-pole design, compared with a three-pole design, the use space of the middle cover is increased, the processing module of the controller can be completely accommodated in the groove of the middle cover, the controller can be limited and fixed after the upper cover and the middle cover are fixed, additional punching and fixing are not needed, and the structural design is optimized.

(3) The invention discloses a fusion type 4P molded case circuit breaker, which is a modularized and stacked structural scheme, wherein the internal structure is distinguished according to functions, and a modularized and integrated structural design is carried out, so that the functions can be selectively configured or different functional modules can be configured in a user-defined mode according to requirements. The stacked installation structure effectively reduces the secondary wires of the internal secondary control loop, and achieves the purposes of convenient assembly, high reliability and flexible configuration.

Drawings

Fig. 1 is an exploded schematic view of the circuit breaker of the present invention;

fig. 2 is a schematic view of the assembly of the circuit breaker of the present invention;

FIG. 3 is a schematic view of a base structure according to the present invention;

FIG. 4 is a schematic diagram of an instrument transformer module assembly of the present invention;

FIG. 5 is an exploded view of the transformer module of the present invention;

FIG. 6 is a schematic view of the cover structure of the present invention;

FIG. 7 is a schematic diagram of a controller according to the present invention;

FIG. 8 is a schematic view of the structure of the upper cover of the present invention;

the above reference numerals:

1. an insulating base plate; 2. an adapter plate; 3. a base body; 4. a transformer module; 5. a release; 6. a middle cover body; 7. a controller; 8. an upper cover; 9. a label;

31. mounting holes; 32. an adapter plate mounting groove; 33. a wiring duct; 34. a base fixing hole;

311. a voltage sensor mounting hole; 312. a temperature sensor mounting hole;

41. installing a shell; 42. a three-phase alternating current transformer; 43. a PCB board; 44. a current transformer socket; 45. a transfer port; 46. switching welding feet; 47. an insulating spacer;

61. a middle cover groove; 62. an embedded nut;

71. a processing module; 72. a control module;

711. inserting a pin; 721. a communication interface; 722. a liquid crystal display screen;

81. an upper cover fixing hole; 82. limiting ribs; 83. an indicator light through hole; 84. a communication hole; 85. a liquid crystal viewing aperture.

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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 present disclosure. 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.

As shown in fig. 1 to 8, the embodiment provides a fusion type 4P molded case circuit breaker, which includes an insulating base plate 1, an adapter plate 2, a base, a middle cover, and an upper cover, which are sequentially disposed.

The base includes base body 3, and 3 are equipped with mutual-inductor module 4 and release 5 on the base body, and the inlet wire end and the leading-out terminal of base body 3 are provided with mounting hole 31, and wherein mounting hole 31 is used for installing voltage sensor and temperature sensor, and the voltage signal that voltage sensor gathered and the temperature signal that temperature sensor gathered convey to the signal output part of mutual-inductor module 4 through above-mentioned keysets 2 and gather the output.

The middle cover comprises a middle cover body 6 and a controller 7, wherein a middle cover groove 61 is formed in the middle cover body 6; the controller 7 comprises a processing module 71 and a control module 72 which are arranged in parallel, wherein the processing module 71 is arranged in the middle cover groove 61, the processing module 71 is in communication connection with the signal output end of the mutual inductor module 4, the control module 72 is arranged outside the middle cover groove 61, and the control module 72 is in communication connection with the outside of the circuit breaker.

Preferably, the base body 3 further includes an adapter plate mounting groove 32, the adapter plate 2 is mounted in the adapter plate mounting groove 32, and the adapter plate 2 is packaged on the base body 3 through the insulating bottom plate 1.

Preferably, the base body 3 further includes a wiring groove 33, and the voltage sensor and the temperature sensor connecting wire are connected with the adapter plate 2 after passing through the wiring groove 33.

In the specific implementation process, the wire inlet end and the wire outlet end of the base body 3 are provided with mounting holes 31, the mounting holes 31 include a voltage sensor mounting hole 311 and a temperature sensor mounting hole 312, probes of the temperature sensor and the voltage sensor are respectively mounted in the temperature sensor mounting hole 312 and the voltage sensor mounting hole 311, then the wires of the temperature sensor and the voltage sensor are connected to the adapter plate 2 through the wiring groove 33 arranged at the rear part of the base body 3, the wiring groove 33 is regularly arranged, the installation is convenient, the strong points and the weak points can be reliably partitioned, the lower part at the rear of the base body 3 is provided with an adapter plate mounting groove 32, the adapter plate 2 is mounted in the groove, and the adapter plate 2 is packaged on the base body 3 through the insulating base plate 1, so that the connection of the wires and the fixation of the adapter plate 2 are facilitated, and particularly, the wires and the adapter plate 2 are connected in an inserting manner in the embodiment.

Preferably, the transformer module 4 includes a mounting case 41, a three-phase ac transformer 42, and a PCB board 43; the three-phase ac transformer 42 is disposed in the mounting housing 41, the PCB 43 is disposed at one side of the mounting housing 41, wherein one end of the PCB 43 is provided with a current transformer socket 44 and a switching port 45, and the other end is provided with a switching leg 46.

In the specific implementation process, the transformer module 4 comprises an installation shell 41, three alternating current transformer installation cavities are arranged in the shell, one side of the installation shell 41 is connected with a PCB 43, the outer side of the PCB 43 and the other side of the installation shell 41 are provided with an insulating partition plate 47, the insulating partition plate 47 is connected with the installation shell 41 in a clamping manner, and the upper end of the PCB 43 is provided with a current transformer jack 44 for collecting current signals collected by a current transformer; the upper end of the PCB 43 is further provided with a switching port 45, in this embodiment, the switching port 45 is a bus bar for outputting the current signal collected by the current transformer through the switching port. The lower extreme of PCB board 43 still is equipped with switching leg 46, and switching leg 46 can pass the through-hole that sets up on the base body 3, establishes electrical connection with the keysets 2 of installing in the base body 3 lower part with the welded mode, can summarize the output through switching port 45 with the temperature signal that voltage signal and the temperature sensor gathered that voltage sensor gathered after the intercommunication.

The base body 3 is provided with a mutual inductor module mounting hole for mounting the mutual inductor module, and meanwhile, the base body 3 is also provided with a release mounting hole for mounting a release 5, and the middle cover body 6 and the base body 3 are fixed after a primary loop inside the circuit breaker and the release 5 are mounted and fixed.

The concrete fixed mode is equipped with base fixed orifices 34 on base body 3, mainly is located the upper portion and the lower part edge of base body 3, is equipped with embedded nut 62 on the position that corresponds with base fixed orifices 34 on the well lid body 6, fixes base body 3 and well lid body 6 through the screw from the rear portion of base body 3, can't see the fastening screw when the product is normally installed for the product is whole more harmonious. To this end, the circuit breaker primary circuit structure part and the sensor (voltage sensor and temperature sensor) acquisition part are assembled to form the circuit breaker bottom layer part, all secondary signal outputs are collected and output through the switching port 45 of the transformer module,

the controller 7 comprises a processing module 71 and a control module 72 which are arranged in parallel, the processing module 71 is arranged in the middle cover groove 61, the processing module 71 is in communication connection with the signal output end of the mutual inductor module 4, the control module 72 is arranged outside the middle cover groove 61, the control module 72 is in communication connection with the outside of the circuit breaker, and the upper cover 8 and the middle cover body 6 are fixed to the controller 7 in a limiting mode after being installed.

Preferably, the processing module 71 is provided with a pin 711, and the pin 711 is connected with the switching port 45 of the transformer module 4. The control module 72 is provided with a communication interface 721 and a liquid crystal display 722, the communication interface 721 is used for establishing communication connection with the outside, and the liquid crystal display 722 is used for establishing human-computer interface communication with the outside.

In a specific implementation process, after the middle cover body 6 is fixed, the controller 7 is fixed, as shown in fig. 7, the controller 7 includes a processing module 71 and a control module 72 which are arranged in parallel and are several electronic circuit boards connected in parallel, wherein the processing module 71 is provided with a pin 711 for establishing connection with a switching port 45 (bus) on the PCB 43 in the transformer module 4 in an insertion manner; the control module 72 is provided with a communication interface 721 for establishing communication connection with the outside of the circuit breaker, and the control module is also provided with a liquid crystal display screen 722 for establishing human-computer interaction communication with the outside of the circuit breaker.

The concrete fixing mode is that, the corresponding position of embedding nut 61 on upper cover 8 and the well lid body 6 is equipped with upper cover fixed orifices 81, the upper cover 8 inboard is provided with spacing muscle 82, processing module 71 can place on well lid inslot 61 on the well lid body 6, control module 72 part is placed outside well lid groove 61, pass through the screw with well lid body 6 fixed back with upper cover 8, utilize upper cover 8's spacing muscle 82 can fix controller 7, and need not additionally to set up the fixed orifices and fix controller 7.

Preferably, the upper cover 8 is provided with an indicator lamp through hole 83, a communication hole 84, and a liquid crystal viewing hole 85. In the specific implementation process, the upper cover is provided with 5 indicator lamp through holes 83 for cooperating with the indicator lamps on the controller 7 to visualize the functional state of the product, and the upper cover 8 is provided with a communication hole 84 through which the external device can establish communication with the communication interface 721 on the controller 7; the upper cover 8 is provided with a liquid crystal window hole 85 for establishing a man-machine interaction function with the outside.

To this end, the entire circuit breaker is installed and, as a preferred option, the exterior of the circuit breaker may also be provided with a label 9.

The fused 4P molded case circuit breaker is a modularized and stacked structural scheme, the internal structures are distinguished according to functions, a modularized and integrated structural design is carried out, the functions can be configured selectively or different functional modules can be configured by self-definition according to requirements, and the problems that the internal space utilization rate of the existing circuit breaker is low, more functional modules cannot be installed, the modularization degree of each part of the internal structure is low, the production and assembly are complex and the like are effectively solved.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and is not intended to limit the practice of the invention to these embodiments. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. a fusion type 4P molded case circuit breaker, is characterized in that, comprises the insulating base plate, the adapter plate, the base, the middle cover and the upper cover that are arranged successively;

The base includes a base body on which a transformer module and a tripper are arranged; the incoming wire end and the outgoing wire end of the base body are provided with installation holes, and the installation holes are used for installing voltage A sensor and a temperature sensor, the voltage signal collected by the voltage sensor and the temperature signal collected by the temperature sensor are transmitted to the signal output terminal of the transformer module through the adapter board for summary output;

The middle cover includes a middle cover body and a controller, the middle cover body is provided with a middle cover groove; the controller includes a processing module and a control module arranged in parallel, and the processing module is arranged in the middle cover groove , the processing module is connected in communication with the signal output end of the transformer module, the control module is arranged outside the middle cover groove, and the control module establishes a communication connection with the outside of the circuit breaker;

After the upper cover and the middle cover body are installed, the controller is limited and fixed.

2 . The fusion type 4P molded case circuit breaker according to claim 1 , wherein the base body further comprises an adapter plate installation groove, and an adapter plate is installed in the adapter plate installation groove. 3 . The adapter board is packaged on the base body through the insulating bottom plate.

3 . The fusion type 4P molded case circuit breaker according to claim 1 , wherein the base body further comprises a row wire groove, and the connecting wires of the voltage sensor and the temperature sensor pass through the row wire groove. 4 . Then connect with the adapter board.

4 . The fusion type 4P molded case circuit breaker according to claim 1 , wherein the base body further comprises a transformer module mounting hole for installing the transformer module; 5 .

and a release mounting hole for installing the release.

5. A fusion type 4P molded case circuit breaker according to claim 1, wherein the transformer module comprises a mounting shell, a three-phase AC transformer and a PCB board; In the installation housing, the PCB board is arranged on one side of the installation housing; one end of the PCB board is provided with a current transformer socket and a transfer port, and the other end is provided with a transfer pin.

6 . The fusion 4P molded case circuit breaker according to claim 5 , wherein the processing module is provided with pins, and the pins are connected to the transfer port of the transformer module. 7 .

7. A fusion type 4P molded case circuit breaker according to claim 1, wherein the control module is provided with a communication interface and a liquid crystal display screen, and the communication interface is used to establish a communication connection with the outside, so the The liquid crystal display is used to establish human-machine interface communication with the outside.

8 . The fusion type 4P molded case circuit breaker according to claim 1 , wherein the upper cover is provided with an indicator light through hole, a communication hole and a liquid crystal viewing window hole. 9 .

9. A fusion type 4P molded case circuit breaker according to claim 1, wherein the base body is further provided with a base fixing hole, and the middle cover body is provided with an embedded nut, so The upper cover is provided with an upper cover fixing hole, and the embedded nut is used in cooperation with the base fixing hole and the upper cover fixing hole respectively through screws to fix the base body, the middle cover body and the upper cover. .

10 . The fusion type 4P molded case circuit breaker according to claim 1 , wherein a sign is provided outside the transformer. 11 .