CN116313660A - Intelligent electronic circuit breaker - Google Patents

Abstract

The invention discloses an intelligent electronic circuit breaker, which comprises a base, a middle cover and a controller module, wherein the middle cover is provided with a groove structure, an electric connection plate assembly connected with a plurality of groups of functional circuits is arranged in the groove structure, the controller module is installed in the groove structure and forms detachable plug-in fit with the electric connection plate assembly through a plug-in assembly, the electric connection plate assembly plays a role in connecting an intermediate circuit between the controller module and the functional circuits, circuit connection is simplified, the modularized installation design is realized between the controller module and the circuit breaker by adopting the technical scheme, even if the controller module fails, the controller module can be overhauled by pulling the controller module out of the middle cover, the whole circuit breaker does not need to be disassembled in the overhauling process, the overhauling maintenance work is facilitated, the installation efficiency is improved, the production cost is reduced, and the market competitiveness of a product is improved.

Description

Intelligent electronic circuit breaker

Technical Field

The invention relates to the technical field of piezoelectric devices, in particular to an intelligent electronic circuit breaker.

Background

Along with the construction and development of a national intelligent power grid, as a low-voltage distribution system at the tail end of the intelligent power grid, an electronic molded case circuit breaker is an important component for constructing a strong intelligent power grid, and the existing electronic molded case circuit breaker is widely used for infrequent conversion and motor protection in a distribution line, has overload long-time delay, short-circuit instantaneous and undervoltage protection functions, can protect lines and power supply equipment from being damaged, has higher and higher intelligent requirements along with the molded case circuit breaker, and also has the functions of signal acquisition and transmission, remote control, remote measurement, remote regulation and the like.

The prior electronic molded case circuit breaker comprises a controller unit and a communication module, wherein the controller unit consists of a power supply circuit board, a control circuit board, a display board and other elements, and in order to realize the modularized installation of the controller unit, the circuit boards are usually installed on a bracket at intervals to form an integral controller unit module, namely the controller unit is fixed on a base of the circuit breaker through the bracket and is positioned between an operating system and a middle cover of the circuit breaker, the communication module is installed on the middle cover and is electrically connected with the controller unit, then a plurality of groups of functional circuits in the circuit breaker are welded with the controller unit through a wire way, and the plurality of groups of functional circuits comprise a detection circuit, an execution circuit, a signal processing circuit and the like, so that various functions of the circuit breaker for signal acquisition, signal transmission and intelligent control are realized.

From the above structure, the existing electronic molded case circuit breaker still has the following problems: 1. because the controller unit is arranged between the base and the middle cover, arc gas and metal particles can be generated when the breaker breaks large current, and the metal particles can contact the controller unit under the action of strong air flow, so that the controller unit is easy to damage, and the service life is short; 2. the installation structure of the controller unit is complex, and is connected with the circuit breaker through complex lines, once the controller unit fails, the whole circuit breaker is required to be dismantled or the whole machine product is directly replaced, the circuit board is easy to be dismantled in the disconnecting process, the installation process is complex, the efficiency is low, the production cost is high, and the overhaul and the maintenance work are inconvenient.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the problems that the controller unit in the prior art is fixed between the base and the middle cover through the bracket, is easy to contact arc gas and metal particles to damage, and the whole breaker product needs to be dismantled when the controller unit breaks down, so that the maintenance work is inconvenient, the whole installation structure is complex, and the production cost is high.

In order to solve the above technical problems, the present invention provides an intelligent electronic circuit breaker, comprising:

the shell structure comprises a base and a middle cover, wherein the middle cover is provided with a groove structure;

the circuit breaker is provided with a plurality of groups of functional circuits which are arranged in the space between the base and the middle cover and are connected with the electric connection plate assembly;

the controller module is installed and accommodated in the groove structure, detachable plug-in cooperation is formed between the controller module and the electric connection plate assembly through a plug-in assembly, and the plug-in assembly comprises a socket structure arranged on one of the controller module and the electric connection plate assembly and a joint structure arranged on the other of the controller module and the electric connection plate assembly and connected with the socket structure.

In the intelligent electronic circuit breaker, the controller module is arranged in the groove structure along the height direction of the circuit breaker, a square handle hole through which the handle can pass is formed in the controller module, and a limiting structure used for limiting the controller module to be pulled out of the groove structure when the circuit breaker is closed is arranged between the handle and the handle hole.

In the intelligent electronic circuit breaker, the limiting structure comprises a limiting inclined plane arranged at one end of the handle hole, and the handle is close to the limiting inclined plane when in a closing position, so that the limiting inclined plane is blocked by the handle.

In the intelligent electronic circuit breaker, the groove structure bottom surface is provided with two mounting grooves of certain depth of sinking, the electric connection plate assembly is including setting up first connecting plate and the second connecting plate in two mounting grooves respectively, the controller module passes through grafting subassembly plug with first connecting plate and second connecting plate respectively and links to each other, first connecting plate and second connecting plate pass through screw structure or joint structure or adhesive structure to be fixed in two in the mounting groove.

In the above-mentioned intelligent electronic circuit breaker, the controller module include the module shell, with set up in circuit board subassembly and the communication device in the module shell, the module shell including the installation the sealed cavity of circuit board subassembly, and intercommunication sealed cavity just is fit for installing communication device's slot structure, but communication device plug sets up in the slot structure with circuit board subassembly links to each other.

In the above-mentioned intelligent electronic circuit breaker, the controller module with be provided with mistake proofing mounting structure between the groove structure, mistake proofing mounting structure is including running through setting up at least one first through-hole between slot structure and the module shell, and correspond first through-hole setting and be in at least one fixed orifices of groove structure bottom surface, pass first through-hole by the fastener after fixed connection in the fixed orifices.

In the above-mentioned intelligent electronic circuit breaker, mistake proofing mounting structure is still including setting up two second through-holes of module shell top both sides, and correspond the second through-hole sets up two guide posts on the groove structure lateral wall, and along the axial extension of second through-hole set up two of module shell both sides dodge the spout, two guide posts are along two lower port departments of dodging spout sliding butt at two second through-holes, pass the second through-hole through the fastener after fixed connection in on the guide post.

In the intelligent electronic circuit breaker, the controller module is inserted into the groove structure along the side of the length direction of the circuit breaker, a socket communicated with the groove structure is arranged on the side wall of one end of the middle cover, and a handle hole which can be used for inserting a handle into a U shape is formed in the controller module.

In the intelligent electronic circuit breaker, a guide sliding rail structure for guiding the controller module to slide and insert into the groove structure is arranged between the controller module and the groove structure, the guide sliding rail structure extends along the length direction of the circuit breaker, and the electric connection plate assembly is arranged on the inner side wall of the other end of the middle cover, which is opposite to the socket.

In the above-mentioned intelligent electronic circuit breaker, be provided with socket structure and a plurality of first interfaces that are used for connecting multiunit functional circuit on the first connecting plate, multiunit functional circuit is including connecting respectively voltage frequency acquisition circuit, temperature information acquisition circuit, floodgate position state detection circuit and power get electric circuit of first connecting plate.

The second connecting plate is provided with a socket structure and a plurality of second jacks used for connecting a plurality of groups of functional circuits, and the plurality of groups of functional circuits further comprise a zero sequence current acquisition circuit, a metering acquisition circuit, a fault tripping acquisition circuit and a test tripping control circuit which are connected with the second connecting plate.

In the intelligent electronic circuit breaker, a main circuit of the circuit breaker arranged on the base is of a three-phase three-wire structure or a single-phase two-wire structure.

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. according to the intelligent electronic circuit breaker provided by the invention, the electric connection plate assembly connected with a plurality of groups of functional circuits is arranged in the groove structure of the middle cover, the controller module is arranged in the groove structure and forms detachable plug-in fit with the electric connection plate assembly through the plug-in assembly, and the quick plug-in connection can be realized by utilizing the plug-in principle design, so that the electric connection plate assembly has excellent electrical performance and mechanical performance, an intermediate circuit connection function is realized between the controller module and the functional circuits, the circuit connection is simplified, the controller module is enabled to realize the functions of signal acquisition transmission, intelligent control and the like of the circuit breaker, the controller module adopting the technical scheme is enabled to realize independent plug-in installation in the groove structure, the installation structure is simplified, and is separated from an operating system on a base, so that arc gas and metal particles generated by the circuit breaker current are prevented from damaging the controller module, and the controller module is in modular installation design, so that when the controller module breaks down, the whole circuit breaker is not required to be detached from the middle cover, the whole circuit breaker is not required to be disconnected in the process, the power supply of the circuit breaker is also not required to be disconnected, the production and maintenance and the manufacturing costs are reduced, the production and the manufacturing and the maintenance costs are increased, the production and the maintenance and the market are convenient are facilitated.

2. According to the intelligent electronic circuit breaker provided by the invention, the square handle hole through which the handle can pass is formed in the controller module, and the limit inclined plane is arranged at one end of the handle hole, so that the limit inclined plane is just close to the limit inclined plane when the handle rotates to the switching-on position, and is positioned below the handle, and at the moment, the controller module cannot be pulled out of the groove structure due to the limit of the limit inclined plane by the position of the handle, so that the controller module is limited to be installed and pulled out during switching-on of the circuit breaker, the limiting and locking effects are realized on the controller module through the handle, and the installation and the pulling out of the controller module on the circuit breaker can be normally realized only when the handle is positioned at the switching-off position, so that the use safety is ensured.

3. In the intelligent electronic circuit breaker provided by the invention, the controller module is usually mounted on the circuit breaker in a vertical plug-in mode, and the electric connection plate assembly is correspondingly arranged on the bottom surface of the groove structure, so that the vertical plug-in connection with the controller module is realized.

4. In the intelligent electronic circuit breaker provided by the invention, the electric connection plate assembly comprises the first connection plate and the second connection plate, and the first connection plate is provided with a plurality of first connection sockets for connecting the voltage frequency acquisition circuit, the temperature information acquisition circuit, the gate state detection circuit and the power supply power taking circuit, and the first connection plate is provided with a plurality of second connection sockets for connecting the zero sequence current acquisition circuit, the metering acquisition circuit, the fault tripping acquisition circuit and the test tripping control circuit.

Drawings

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

Fig. 1 is a schematic structural diagram of an intelligent electronic circuit breaker in a closing state;

fig. 2 is a schematic diagram of a split structure of the intelligent electronic circuit breaker of the present invention;

fig. 3 is a schematic structural diagram of the intelligent electronic circuit breaker of the present invention after hiding the controller module;

FIG. 4 is a schematic perspective view of a controller module according to the present invention;

FIG. 5 is a schematic plan view of a controller module according to the present invention;

FIG. 6 is a schematic cross-sectional view of the controller module shown in FIG. 5;

FIG. 7 is a schematic diagram of another alternative controller module of the present invention;

reference numerals illustrate: 1. a base; 2. a middle cover; 21. a groove structure; 22. a mounting groove; 3. an electrical connection board assembly; 31. a first connection plate; 32. a second connecting plate; 33. a first socket; 34. a second socket; 4. a controller module; 41. a handle hole; 42. a module housing; 43. a slot structure; 44. a communication device; 45. a circuit board assembly; 5. a socket structure; 6. a joint structure; 7. an error-proof mounting structure; 71. a first through hole; 72. a second through hole; 73. avoiding the chute; 74. a guide post; 75. a fixing hole; 8. and a limiting inclined plane.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

The present embodiment is specifically described below with reference to the accompanying drawings:

the present embodiment provides an intelligent electronic circuit breaker as shown in fig. 1-7, comprising:

the shell structure comprises a base 1 and a middle cover 2, wherein a groove structure 21 is arranged on the middle cover 2;

an electric connection plate assembly 3 fixed in the groove structure 21, the circuit breaker having a plurality of groups of functional lines disposed in a space between the base 1 and the middle cover 2 and connected to the electric connection plate assembly 3;

the controller module 4 is installed and accommodated in the groove structure 21, detachable plug-in fit is formed between the controller module 4 and the electric connection plate assembly 3 through a plug-in assembly, and the plug-in assembly comprises a socket structure 5 arranged on one of the controller module 4 and the electric connection plate assembly 3, and a joint structure 6 arranged on the other of the controller module 4 and the electric connection plate assembly 3 and connected with the socket structure 5.

In the above embodiment, the electric connection board assembly 3 connected with the multiple groups of functional circuits is arranged in the groove structure 21 of the middle cover 2, the controller module 4 is installed in the groove structure 21 and forms detachable plug-in fit with the electric connection board assembly 3 through the plug-in assembly, and quick plug-in connection can be realized by utilizing the plug-in principle design, so that the electric connection board assembly 3 has excellent electrical performance and mechanical performance, an intermediate circuit connection function is realized between the controller module 4 and the functional circuits, circuit connection is simplified, thereby the controller module 4 realizes functions of signal acquisition transmission, intelligent control and the like of the circuit breaker, the controller module 4 adopting the technical scheme realizes independent plug-in installation in the groove structure 21, simplifies an installation structure and is separated from an operation system on the base 1, thus avoiding damage to the controller module 4 caused by arc gas and metal particles generated by breaking current of the circuit breaker, and realizing modularized installation design between the controller module and the circuit breaker, so that the controller module can be overhauled as long as the controller module is pulled out from the middle cover when the controller module breaks down, the whole circuit breaker is required to be disassembled, the power supply is not required to be disconnected, the production cost is not easy to be increased, the production and the product is convenient to promote the market maintenance and the maintenance process is convenient, and the production and the maintenance cost is improved.

As a preferred embodiment, the controller module 4 is installed in the groove structure 21 along the height direction of the circuit breaker, a square handle hole 41 through which a handle can pass is arranged on the controller module 4, and a limiting structure for limiting the controller module 4 to be pulled out of the groove structure when the circuit breaker is closed is arranged between the handle and the handle hole 41.

As shown in fig. 2 and 6, the limiting structure includes a limiting inclined plane 8 disposed at one end of the handle hole 41, when the handle rotates to a closing position, the limiting inclined plane 8 is just close to the limiting inclined plane 8, so that the limiting inclined plane 8 is located below the handle, and the limiting inclined plane 8 is blocked by the handle.

The specific arrangement of the controller module 4 is described in detail below with reference to fig. 3-7:

the controller module 4 comprises a module shell 42, and a circuit board assembly 45 and a communication device 44 which are arranged in the module shell 42, the module shell 42 comprises a closed cavity for installing the circuit board assembly 45, and a slot structure 43 which is communicated with the closed cavity and is suitable for installing the communication device 44, the communication device 44 is arranged in the slot structure 43 in a pluggable manner, the circuit board assembly 45 is connected with the circuit board assembly 45, the circuit board assembly 45 comprises a control circuit board, a power circuit board and a display board and has a core function of data information processing, the structure is arranged, the communication module is used for carrying out high-speed transmission on analog or digital signals of the circuit breaker, the communication connection between the circuit breaker and the intelligent power grid system is realized, and the controller module can realize functions of remote control and adjustment on the circuit breaker according to signal instructions.

The controller module 4 is also in a square structure and is easy to be installed in the wrong direction on the middle cover 2, in order to prevent the controller module 4 from being installed in the wrong direction on the middle cover 2, an error-proof installation structure 7 is arranged between the controller module 4 and the groove structure 21, the error-proof installation structure 7 comprises at least one first through hole 71 penetrating through and arranged between the slot structure 43 and the module shell 42, and at least one fixing hole 75 corresponding to the first through hole 71 and arranged on the bottom surface of the groove structure 21, the fixing hole is fixedly connected to the fixing hole 75 after passing through the first through hole 71 through a fastener, in addition, the controller module further comprises two second through holes 72 arranged on two sides of the top of the module shell 42, two guide posts 74 corresponding to the second through holes 72 and two avoidance slide grooves 73 arranged on two sides of the module shell along the axial extension of the second through holes 72, the two guide posts 74 are in sliding butt joint with the lower ports of the two second through holes 72, the avoidance slide grooves 73 play a role in fixing the guide posts 74 to the guide posts 74 and the fixing hole 75 are matched with the fixing hole, and the fixing hole is preferably provided with the fixing hole structure through the fixing hole. According to the structure, under the condition that the controller module 4 is in wrong installation, the guide support posts 74 do not correspond to the avoidance sliding grooves 73, the two guide support posts 74 can block the controller module 4 from being inserted into the groove structure 21 of the middle cover 2, so that a user is prompted that the installation position is not required to be adjusted in time, and the controller module can be correctly inserted into the groove structure of the middle cover only when the two guide support posts correspondingly slide into the two avoidance sliding grooves, so that the accuracy and the uniqueness of the installation position of the controller module are ensured.

As a preferred embodiment, as shown in fig. 3, the bottom surface of the groove structure 21 is provided with two mounting grooves 22 that settle to a certain depth, the electric connection board assembly 3 includes a first connection board 31 and a second connection board 32 that are respectively disposed in the two mounting grooves 22, the first connection board 31 and the second connection board 32 are fixed in the two mounting grooves 22 through a screw structure or a clamping structure or an adhesive structure, the controller module 4 is respectively connected with the first connection board 31 and the second connection board 32 through plugging components, specifically, a socket structure 5 is disposed on the first connection board 31 and the second connection board 32 respectively, a connector structure 6 connected with the circuit board assembly 45 is disposed at the bottom of the controller module 4 correspondingly, a plurality of jacks are disposed on the socket structure 5, and a plurality of pins that are matched and inserted into the jacks are disposed on the connector structure 6, so as to realize electrical connection between the socket structure 5 and the connector structure 6, when the controller module 4 is vertically inserted into the groove structure 21, and then the controller module and the two final controller module can be connected with the connector structure through mating of the socket structure 5 and the connector structure 6, and the final controller module can be connected with the connector structure through the fastener.

In the above embodiment, although the controller module 4 is preferably mounted in the groove structure 21 of the middle cover 2 by vertical insertion and extraction, as an alternative embodiment, a side insertion mounting manner may also be used, and referring specifically to fig. 7, the controller module 4 is inserted into the groove structure 21 along the side of the length direction of the circuit breaker, for this purpose, a socket for communicating with the groove structure 21 needs to be provided on one end side wall of the middle cover 2, a handle hole 41 for inserting a handle into a U shape is provided on the controller module 4, the electric connection board assembly 3 is provided on the inner side wall of the other end of the middle cover 2 opposite to the socket, and at the same time, the setting position of the joint structure 6 on the controller module 4 is adjusted and optimized, that is, the joint structure 6 connected with the electric connection board assembly 3 in an inserting and extracting manner is provided on one end of the controller module 4. In order to ensure that the controller module 4 can be stably and accurately installed in the groove structure 21 in a side-plugging mode, a guide sliding rail structure for guiding the controller module 4 to be inserted into the groove structure 21 in a sliding mode is arranged between the controller module 4 and the groove structure 21, the guide sliding rail structure extends to a socket along the length direction of the circuit breaker, and the controller module 4 is provided with an installation guiding function through the guide sliding rail structure, so that the installation is convenient and quick.

In this embodiment, the main circuit of the circuit breaker disposed on the base 1 is of a three-phase three-wire structure or a single-phase two-wire structure, and a plurality of groups of functional circuits are disposed between the base 1 and the middle cover 2, and the functional circuits include a detection circuit structure, an execution circuit structure, a signal circuit structure, and the like, and are connected with the electric connection board assembly 3 in a circuit connection manner, and after connection is established between the controller module 4 and the functional circuits, functions such as signal detection, functional protection, and intelligent control of the circuit breaker are realized. As a preferred embodiment, the first connection board 31 is provided with a socket structure 5 and a plurality of first sockets 33 for connecting a plurality of groups of functional circuits, the plurality of groups of functional circuits include a voltage acquisition circuit, a temperature information acquisition circuit, a gate state detection circuit and a power supply power taking circuit which are respectively connected with the first connection board 31, wherein the voltage acquisition circuit is used for acquiring voltage and frequency information of a main circuit of a circuit breaker, the temperature information acquisition circuit can detect temperature information of the main circuit of the circuit breaker in real time through a temperature sensor, the gate state detection circuit is used for acquiring opening or closing state information of the circuit breaker, and the power supply power taking circuit is used for providing power required by operation for the controller module 4 through connecting one side of a wire inlet end of the circuit breaker; in addition, the second connecting plate 32 is provided with a socket structure 5 and a plurality of second sockets 34 for connecting a plurality of groups of functional circuits, the plurality of groups of functional circuits further comprise a zero sequence current acquisition circuit, a metering acquisition circuit, a fault tripping acquisition circuit and a test tripping control circuit, the zero sequence current acquisition circuit is used for acquiring zero line current information of a main circuit of the circuit breaker through a zero sequence transformer, the metering acquisition circuit is used for acquiring electric quantity parameter information of the main circuit of the circuit breaker through the metering transformer, the fault tripping acquisition circuit is used for detecting whether the circuit breaker has a tripping fault or not, and the test tripping control circuit is used for a controller module 4 to test the circuit breaker, wherein the functional circuits are all conventionally known circuit designs and are clear to a person skilled in the art and are not specifically developed herein.

The advantage of adopting the structure setting is that through be provided with a plurality of first jacks 33 and a plurality of second jacks 34 on first connecting plate 31 and second connecting plate 32 respectively, voltage frequency acquisition circuit, temperature information acquisition circuit, floodgate position state detection circuit and power get the circuit and only need peg graft in corresponding first jack 33 through the pencil joint can realize electric connection with first connecting plate 31 respectively, the same, zero sequence current acquisition circuit, measurement acquisition circuit, trouble tripping acquisition circuit and experimental tripping control circuit peg graft in corresponding second jack 34 through the pencil joint respectively and can realize electric connection with second connecting plate 32, then, the cooperation of rethread controller module 4 and first connecting plate 31 and second connecting plate 32 is pegged graft together to realize circuit transmission and signal transmission's effect between controller module and multiunit functional circuit, it is from this to see that the connected mode between controller module and multiunit functional circuit and the electric connecting plate all adopts the connector form to peg graft and link, installs the wiring convenient and fast, and structure is compacter, realizes the modularization and connects, is favorable to the assembly efficiency of mass production of product.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (11)

1. An intelligent electronic circuit breaker, comprising:

the shell structure comprises a base (1) and a middle cover (2), wherein a groove structure (21) is arranged on the middle cover (2);

an electric connection plate assembly (3) fixed in the groove structure (21), wherein the circuit breaker is provided with a plurality of groups of functional circuits which are arranged in the space between the base (1) and the middle cover (2) and are connected with the electric connection plate assembly (3);

the controller module (4) is installed and accommodated in the groove structure (21), detachable plug-in cooperation is formed between the controller module (4) and the electric connection plate assembly (3) through a plug-in assembly, the plug-in assembly comprises a socket structure (5) arranged on one of the controller module (4) and the electric connection plate assembly (3), and a joint structure (6) arranged on the other of the controller module (4) and the electric connection plate assembly (3) and connected with the socket structure (5).

2. The intelligent electronic circuit breaker according to claim 1, characterized in that: the controller module (4) is installed into the groove structure (21) along the height direction of the circuit breaker, a square handle hole (41) through which a handle can pass is formed in the controller module (4), and a limiting structure used for limiting the controller module (4) to be pulled out of the groove structure (21) when the circuit breaker is closed is arranged between the handle and the handle hole (41).

3. The intelligent electronic circuit breaker according to claim 2, characterized in that: the limiting structure comprises a limiting inclined plane (8) arranged at one end of the handle hole (41), and the handle is close to the limiting inclined plane (8) when in a closing position, so that the limiting inclined plane (8) is blocked by the handle.

4. The intelligent electronic circuit breaker according to claim 3, characterized in that: the utility model discloses a motor vehicle electric connection board, including recess structure (21), electric connection board subassembly (3) are provided with two mounting grooves (22) of certain degree of depth that sink, electric connection board subassembly (3) are including setting up first connecting plate (31) and second connecting plate (32) in two mounting grooves (22) respectively, controller module (4) link to each other through grafting subassembly plug with first connecting plate (31) and second connecting plate (32) respectively, first connecting plate (31) and second connecting plate (32) are fixed in two through screw structure or joint structure or adhesive structure in mounting groove (22).

5. The intelligent electronic circuit breaker according to any of claims 1-4, characterized in that: the controller module (4) comprises a module shell (42), and a circuit board assembly (45) and a communication device (44) which are arranged in the module shell (42), wherein the module shell (42) comprises a closed cavity for installing the circuit board assembly (45), and a slot structure (43) which is communicated with the closed cavity and is suitable for installing the communication device (44), and the communication device (44) is arranged in the slot structure (43) in a pluggable manner and is connected with the circuit board assembly (45).

6. The intelligent electronic circuit breaker according to claim 5, characterized in that: the controller is characterized in that an error-proof mounting structure (7) is arranged between the controller module (4) and the groove structure (21), the error-proof mounting structure (7) comprises at least one first through hole (71) penetrating through the slot structure (43) and the module shell (42), and at least one fixing hole (75) corresponding to the first through hole (71) and arranged on the bottom surface of the groove structure (21), and the fixing hole (75) is fixedly connected after the fixing piece penetrates through the first through hole (71).

7. The intelligent electronic circuit breaker according to claim 6, characterized in that: the mistake proofing mounting structure (7) further comprises two second through holes (72) arranged on two sides of the top of the module shell (42), two guide posts (74) arranged on the side wall of the groove structure (21) corresponding to the second through holes (72), and two avoidance sliding grooves (73) arranged on two sides of the module shell along the axial extension of the second through holes (72), wherein the two guide posts (74) are in sliding butt at the lower ports of the two second through holes (72) along the two avoidance sliding grooves (73), and are fixedly connected to the guide posts (74) after penetrating through the second through holes (72) through fasteners.

8. The intelligent electronic circuit breaker according to claim 1, characterized in that: the controller module (4) is inserted into the groove structure (21) along the side of the length direction of the circuit breaker, a socket communicated with the groove structure (21) is arranged on the side wall of one end of the middle cover (2), and a handle hole (41) which can be used for inserting a handle into a U shape is arranged on the controller module (4).

9. The intelligent electronic circuit breaker according to claim 8, wherein: the circuit breaker is characterized in that a guide sliding rail structure for guiding the controller module (4) to be inserted into the groove structure (21) in a sliding mode is arranged between the controller module (4) and the groove structure (21), the guide sliding rail structure extends in the length direction of the circuit breaker, and the electric connection plate assembly (3) is arranged on the inner side wall of the other end of the middle cover (2) opposite to the socket.

10. The intelligent electronic circuit breaker according to any of claims 1-9, characterized in that:

the first connecting plate (31) is provided with a socket structure (5) and a plurality of first connecting sockets (33) for connecting a plurality of groups of functional circuits, wherein the plurality of groups of functional circuits comprise a voltage frequency acquisition circuit, a temperature information acquisition circuit, a gate state detection circuit and a power supply power taking circuit which are respectively connected with the first connecting plate (31);

the second connecting plate (32) is provided with a socket structure (5) and a plurality of second sockets (34) for connecting a plurality of groups of functional circuits, and the plurality of groups of functional circuits further comprise a zero sequence current acquisition circuit, a metering acquisition circuit, a fault tripping acquisition circuit and a test tripping control circuit which are connected with the second connecting plate.

11. The intelligent electronic circuit breaker according to claim 10, characterized in that: the main circuit of the circuit breaker arranged on the base (1) is of a three-phase three-wire structure or a single-phase two-wire structure.

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