Intelligent control device of circuit breaker
By designing the intelligent control device of the circuit breaker, using the communication module and intelligent unit board to monitor the gate status of the circuit breaker in real time and achieve active protection, the problem of traditional plastic case circuit breakers lacking active protection is solved, improving the level of intelligence and saving costs.
Patent Information
- Application Number
- CN202421809499.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Traditional mechanical plastic case circuit breakers lack active protection functions and cannot monitor operating conditions data in real time, which is prone to electrical safety problems.
An intelligent control device for circuit breakers is designed, including a communication module and an intelligent unit board. By connecting to the circuit breaker body, the gate position status is monitored in real time, and connected to the meter reading terminal through the communication module to realize remote monitoring and active protection.
Real-time monitoring and active protection of the gate status of the circuit breaker is realized, which avoids the occurrence of electrical safety problems, improves the intelligence level of traditional plastic case circuit breakers, and can achieve remote monitoring and protection without changing the circuit breaker, saving costs.
Smart Images
Figure CN222928092U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of low-voltage electrical appliances, and particularly relates to an intelligent control device for a circuit breaker. Background Art
[0002] A circuit breaker is an important switching device in the power system. When a fault occurs in the power system, it can cut off the circuit to ensure the safety of the power system. Among them, the molded case circuit breaker is a relatively common integrated circuit breaker at present, and its application range is very wide. With the increase in the number of electrical appliances, the traditional mechanical molded case circuit breaker lacks an effective active protection function in terms of electrical safety, cannot monitor the operating condition data of the traditional molded case circuit breaker, and is prone to electrical safety problems. Content of the Utility Model
[0003] Therefore, the utility model aims to solve the technical problems of the lack of active protection and insufficient intelligence in the traditional molded case circuit breaker in the prior art, and thus provides an intelligent control device for a circuit breaker.
[0004] According to a first aspect, an embodiment of the utility model provides an intelligent control device for a circuit breaker, including:
[0005] A communication module;
[0006] An intelligent unit board, the communication module is detachably connected to the intelligent unit board, and the intelligent unit board is connected to a meter reading terminal through the communication module;
[0007] The intelligent unit board is also connected to the circuit breaker body for monitoring the position state inside the circuit breaker body.
[0008] Optionally, the intelligent unit board includes: an intelligent unit main board and an intelligent unit power supply board;
[0009] The intelligent unit power supply board includes a first control chip and a first interface connected to the first control chip;
[0010] The intelligent unit main board includes a second control chip, a second interface for connecting to the first interface, and a communication module interface for connecting to the communication module; the communication module interface is also connected to the second control chip;
[0011] The second control chip is connected to the first control chip through a first transmission terminal;
[0012] The second interface is also connected to the circuit breaker body.
[0013] Optionally, the intelligent control device for a circuit breaker further includes: a first housing, and the intelligent unit board is arranged inside the first housing;
[0014] The first housing further includes: a metering current transformer, a protection current transformer, and a cable temperature sensor. Among them, the metering current transformer and the protection current transformer are integrally arranged, and the cable temperature sensor is used to monitor the temperature of the cable passing through the circuit breaker body.
[0015] The metering current transformer, the protection current transformer, and the cable temperature sensor are all electrically connected to the intelligent unit power board.
[0016] Optionally, the intelligent unit main board further includes a sampling circuit;
[0017] The sampling circuit is connected to the incoming line terminal of the circuit breaker body through a third interface; the sampling circuit is connected to the second control chip.
[0018] Optionally, the intelligent control device further includes: a second housing. The first housing and the second housing are connected through a card slot, and a front panel is provided on the second housing.
[0019] Optionally, the front panel includes a plurality of buttons and a display screen window. The intelligent control device further includes: an intelligent unit display board;
[0020] The intelligent unit display board is arranged above the intelligent unit main board and is electrically connected to the intelligent unit display board through an intelligent unit display board interface arranged above the intelligent unit main board;
[0021] The front panel covers the intelligent unit display board.
[0022] Optionally, the second housing further includes: a terminal cover plate, and the terminal cover plate covers the second interface.
[0023] Optionally, the intelligent unit main board further includes a fourth interface; the fourth interface is connected to the second control chip and is used to connect to an intelligent electric meter and / or an intelligent sensor.
[0024] Optionally, the intelligent unit power board includes:
[0025] A protection current transformer interface for connecting to a protection current transformer;
[0026] A metering current transformer interface for connecting to a metering current transformer;
[0027] A temperature sensor interface for connecting to a cable temperature sensor.
[0028] Optionally, the intelligent unit power board includes a first isolation circuit, and the first control chip is connected to the fourth interface through the first isolation circuit;
[0029] The intelligent unit main board includes a second isolation circuit, and the second control chip is connected to the fourth interface through the second isolation circuit.
[0030] The technical solution of the present utility model has the following advantages:
[0031] The utility model provides an intelligent control device for a circuit breaker, which can understand the state of the circuit breaker's contact position in real time, achieve active protection, and avoid electrical safety problems. An intelligent control device can also be set outside the molded case circuit breaker, solving the problem of difficult upgrade and transformation of traditional molded case circuit breakers. Without replacing the traditional molded case circuit breaker, remote monitoring and active protection of the molded case circuit breaker can be achieved, which not only saves costs but also improves the intelligence of the molded case circuit breaker, and effectively avoids damage to the circuit breaker switch caused by problems such as overheating of the line and overloading of the load, effectively reducing the operation and maintenance costs of user equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0033] Figure 1 An exploded structure diagram of a specific example of an intelligent control device for a circuit breaker in an embodiment of the present application;
[0034] Figure 2 A structure diagram of a specific example of the overall intelligent circuit breaker in an embodiment of the present application;
[0035] Figure 3 A structure diagram of a specific example of the contact position state feedback device inside the circuit breaker body in an embodiment of the present application;
[0036] Figure 4 A circuit structure diagram of a specific example of the power supply board of the intelligent unit in an embodiment of the present application;
[0037] Figure 5 A circuit structure diagram of a specific example of the main board of the intelligent unit in an embodiment of the present application;
[0038] Figure 6 A side view of a specific example of the intelligent control device in an embodiment of the present application;
[0039] Figure 7 A position diagram of a specific example of protecting the current transformer, metering current transformer and cable temperature sensor in the first housing in Embodiment 1 of the present application;
[0040] Description of the drawing reference numerals: 11 - intelligent control device, 111 - communication module, 112 - intelligent unit display board, 113 - intelligent unit main board, 1130 - second control chip, 1131 - second interface, 1132 - communication module interface, 1134 - third interface, 1135 - fourth interface, 1136 - intelligent unit display board interface, 1137 - sampling circuit, 1138 - second isolation circuit, 1139 - substation area topology identification circuit, 114 - intelligent unit power board, 1140 - first control chip, 1141 - first interface, 1142 - metering transformer interface, 1143 - temperature sensor interface, 1144 - sampling interface, 1145 - sixth interface, 1146 - first isolation circuit, 1147 - first transmission terminal, 1148 - protection transformer interface, 115 - first housing, 1151 - metering transformer, 1152 - protection transformer, 1153 - cable temperature measurement sensor, 116 - second housing, 1161 - terminal cover plate, 12 - circuit breaker body, 121 - switch position status feedback device, 122 - electromagnetic release. Detailed implementation manners
[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0043] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the internal communication of two elements. It can be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0044] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0045] This embodiment provides an intelligent control device for a circuit breaker, which is applied to occasions where a molded case circuit breaker needs to be remotely monitored, such as Figure 1 As shown, it includes a communication module 111 and an intelligent unit board.
[0046] The communication module 111 is detachably connected to the intelligent unit board, and the intelligent unit board is connected to a meter reading terminal through the communication module 111; the intelligent unit board is also connected to the circuit breaker body 12, and the intelligent unit board is used to monitor the position state inside the circuit breaker body.
[0047] Referring to Figure 2 As shown, the intelligent control device 11 provided by the present utility model can be connected to the circuit breaker body 12 to form a complete circuit breaker, which can include the intelligent control device 11 and the circuit breaker body 12. The intelligent control device 11 and the circuit breaker body 12 can be fixedly connected or detachably connected.
[0048] The communication module 111 can be a carrier communication module, and / or a wireless communication module, and / or a dual-mode communication module, and the communication module 111 can be replaced according to requirements. A 4G / 5G channel can be used for transmission between the meter reading terminal and the master station. The meter reading terminal transmits the information received from the master station to the intelligent unit board through the communication module 111. Of course, the communication module 111 can also send data information to the meter reading terminal.
[0049] Furthermore, the intelligent unit board can be connected to the position state feedback device 121 inside the circuit breaker body 12. As shown in Figure 3 As shown, the intelligent unit board can monitor the position state inside the circuit breaker body, and / or control the opening or closing of the position through the position state feedback device 121. Specifically, the position state feedback device 121 can identify the opening and closing states of the circuit breaker position. The intelligent unit board is connected to the position state feedback device 121. The intelligent unit board can monitor the position state of the circuit breaker through the position state feedback device, and can also transmit a control instruction to the position state feedback device 121 by using the intelligent unit board, so as to control the opening or closing of the circuit breaker position through the position state feedback device 121.
[0050] In this embodiment, after the communication module 111 receives the control information sent by the meter reading terminal, the communication module 111 transmits the received control information to the intelligent unit board, and then the intelligent unit board sends a control instruction to the gate position state feedback device 121, so as to control the opening or closing of the gate position inside the circuit breaker body 12 through the gate position state feedback device 121. Further, the gate position state feedback device 121 can transmit the identified state of the circuit breaker gate position to the intelligent unit board, and the intelligent unit board transmits the received state information to the communication module 111, and then the communication module 111 transmits it to the meter reading terminal, so that the state of the circuit breaker gate position can be understood in real time, and active protection can be realized, thereby improving the intelligence level of traditional molded case circuit breakers.
[0051] In this embodiment, an intelligent control device can be directly set on the outside of the molded case circuit breaker, which can effectively solve the problem of difficulty in upgrading and transforming traditional molded case circuit breakers. Remote monitoring and active protection of the molded case circuit breaker can be achieved without replacing the traditional molded case circuit breaker, which saves costs and improves the intelligence of the molded case circuit breaker. It also effectively avoids damage to the circuit breaker switch caused by problems such as line overheating and excessive load, and effectively reduces the operation and maintenance costs of user equipment.
[0052] As an optional implementation, in the embodiment of the utility model, the smart unit board includes: a smart unit main board 113 and a smart unit power board 114;
[0053] like Figure 4 As shown, the smart unit power board 114 includes a first control chip 1140 and a first interface 1141 connected to the first control chip 1140;
[0054] like Figure 5 As shown, the smart unit mainboard 113 includes a second control chip 1130, a second interface 1131 for connecting to the first interface 1141, and a communication module interface 1132 for connecting to the communication module 111; the communication module interface 1132 is also connected to the second control chip 1130;
[0055] The second control chip 1130 is connected to the first control chip 1140 via the first transmission terminal 1147;
[0056] The second interface 1131 is also connected to the gate position state feedback device 121 inside the circuit breaker body 12 .
[0057] The intelligent unit mainboard 113 is also provided with a substation topology identification circuit 1139 to meet the identification requirements of the physical topology of the power supply line.
[0058] like Figure 1As shown, the intelligent control device includes a communication module 111, an intelligent unit main board 113, an intelligent unit power board 114, and a first housing 115; the intelligent unit power board 114 and the intelligent unit main board 113 can be arranged inside the first housing 115 from bottom to top.
[0059] In this embodiment, the first control chip 1140 can adopt an N32G451 switch protection chip, and the second control chip 1130 can adopt an HT7625 metering and control integrated chip. The communication module 111 can adopt a hot-swap connection method and is electrically connected to the communication module 111 through a communication module interface 1132 arranged above the intelligent unit main board 113. The positional relationship of the connections between the communication module 111, the intelligent unit main board 113, the intelligent unit power board 114, and the first housing 115 can be as Figure 1 shown, and the assembled intelligent control device 11 can be as Figure 6 shown.
[0060] As Figure 3 shown, a breaker position state feedback device 121 is arranged inside the breaker body 12, and the breaker position state feedback device 121 can identify the opening and closing states of the breaker position. The breaker position state feedback device 121 is connected to a fourth interface 1135 and a second interface 1131. The fourth interface 1135 is a switch state monitoring interface and can monitor the breaker position. The second interface 1131 can be a switch control interface and can control the breaker position. Among them, the second interface 1131 is connected to a first interface 1141, the first interface 1141 is connected to the first control chip 1140, the first control chip 1140 is connected to the second control chip 1130, and the second control chip 1130 transmits the monitoring result to the communication module 111 through the communication module interface 1132, and then the communication module 111 transmits it to the meter reading terminal, so as to realize the real-time monitoring of the breaker position.
[0061] Of course, when an abnormal situation occurs in the breaker, the control instruction can be immediately transmitted to the breaker position state feedback device 121 through the first control chip 1140, and then the breaker position state feedback device 121 controls the electromagnetic release 122 inside the breaker body 12 to realize tripping protection.
[0062] Further, when the control of the breaker position is actively implemented through the meter reading terminal, the process is as follows: when the communication module 111 receives a control instruction, the communication module 111 is connected to the second control chip 1130 through the communication module interface 1132. The second control chip 1130 is connected to the first control chip 1140 through the first transmission terminal 1147. The first control chip 1140 is connected to the first interface 1141. The first interface 1141 is connected to the second interface 1131. The second interface 1131 is further connected to the breaker position state feedback device 121. Finally, the electromagnetic release 122 inside the breaker body 12 is controlled through the breaker position state feedback device 121 to achieve the active protection of the breaker.
[0063] Therefore, not only can the remote communication function of the communication module 111 be used to monitor and read the opening and closing states of the breaker position, but also the remote control of the breaker position can be achieved through remote instructions, so as to realize the active protection of the breaker and improve the intelligent level of traditional molded case breakers.
[0064] In this embodiment, an intelligent control device is arranged outside the molded case breaker, which solves the problem of difficult upgrading and transformation of traditional molded case breakers. Without replacing the traditional molded case breaker, remote monitoring and active protection of the molded case breaker can be realized, which not only saves costs but also improves the intelligence of the molded case breaker, and effectively avoids the damage of the breaker switch caused by problems such as overheating of the line and overloading of the load, effectively reducing the operation and maintenance costs of user equipment.
[0065] It should be noted that the embodiments of the present invention mainly introduce the hardware structure of the breaker intelligent control device. What the present invention intends to protect is also the structure and components included in the breaker intelligent control device. As for the control logic, data transmission and other method contents, existing logics can be completely adopted.
[0066] As an optional implementation manner, in the embodiments of the present invention, the breaker intelligent control device further includes: a first housing 115, and the intelligent unit board is arranged inside the first housing 115;
[0067] As Figure 7 shown, the first housing 115 further includes: a metering current transformer 1151, a protection current transformer 1152, and a cable temperature sensor 1153. Among them, the metering current transformer 1151 and the protection current transformer 1152 are integrally arranged;
[0068] The metering current transformer 1151, the protection current transformer 1152, and the cable temperature sensor 1153 are all electrically connected to the intelligent unit power board 114.
[0069] The first housing 115 further includes a switch wiring copper bar, and the cable temperature sensor 1153 can be sleeved on the switch wiring copper bar. The cable output by the circuit breaker body 12 is connected to the intelligent control device 11 through the switch wiring copper bar.
[0070] In this embodiment, the cable temperature sensor 1153 can monitor the temperature of the cable passing through the circuit breaker body 12. According to the overload long-time delay, short-time delay of short circuit, instantaneous short circuit and other power supply fault conditions of the circuit breaker body 12 monitored by the cable temperature sensor 1153, control instructions are transmitted to the gate position state feedback device 121 through the second interface 1131, and then the gate position state feedback device 121 controls the electromagnetic release 122 inside the circuit breaker body 12 to realize the active protection of the circuit breaker.
[0071] In this embodiment, the metering mutual inductor 1151 and the protection mutual inductor 1152 are connected to the intelligent unit power board 114 through the metering mutual inductor interface 1142 and the protection mutual inductor interface 1148 on the intelligent unit power board 114. The current data of the cable can be obtained through the intelligent unit power board 114.
[0072] As Figure 5 shown, as an optional implementation manner, in the embodiment of the present utility model, the intelligent unit main board 113 further includes a sampling circuit 1137;
[0073] The sampling circuit 1137 is connected to the incoming line terminal of the circuit breaker body 12 through the third interface 1134;
[0074] The sampling circuit 1137 is connected to the second control chip 1130. The second control chip 1130 is used to receive the sampling signal collected at the incoming line terminal by the sampling circuit 1137.
[0075] In this embodiment, the third interface 1134 can be a voltage sampling interface. The third interface 1134 is connected to the incoming line terminal of the circuit breaker body 12 to collect the voltage at the incoming line terminal of the circuit breaker body 12. The collected voltage is processed by the sampling circuit 1137, and the final voltage data is determined by the second control chip 1130. Further, a sampling interface 1144 is also provided on the intelligent unit power board 114. The sampling interface 1144 can be a current sampling interface. The sampling interface 1144 is connected to the metering mutual inductor interface 1142 connected to the metering mutual inductor 1151 and is also connected to the sampling circuit 1137. The current data collected by the metering mutual inductor 1151 is processed by the sampling circuit 1137 and then transmitted to the second control chip 1130. According to the voltage data and current data obtained by the second control chip 1130, the power consumption data of the circuit breaker body 12 is determined. It should be noted that the current and voltage sampling methods and processing methods introduced in this embodiment can be completely implemented by existing technologies.
[0076] In this embodiment, the intelligent control device 11 can not only monitor the switch position state of the circuit breaker body 12 and play an active protection function for the circuit breaker body 12, but also monitor the power consumption data of the circuit breaker body 12, improving the intelligent level of traditional molded case circuit breakers.
[0077] As Figure 1 shown, as an alternative embodiment, in the embodiment of the present utility model, the intelligent control device 11 further includes: a second housing 116. The first housing 115 and the second housing 116 are connected by a card slot, enabling an integrated design of the intelligent control device 11, and a front panel is also provided on the second housing 116.
[0078] As Figure 1 shown, as an alternative embodiment, in the embodiment of the present utility model, the front panel includes a plurality of buttons and a display screen window. The intelligent control device 11 further includes: an intelligent unit display board 112;
[0079] The intelligent unit display board 112 is disposed above the intelligent unit main board 113 and is electrically connected to the intelligent unit display board 112 through an intelligent unit display board interface 1136 provided above the intelligent unit main board 113;
[0080] The front panel covers the intelligent unit display board 112.
[0081] In this embodiment, the intelligent unit display board 112 is integrated with user interaction buttons and a display screen. The intelligent unit display board 112 is connected to the intelligent unit main board 113 through the intelligent unit display board interface 1136, and can display the opening and closing states of the circuit breaker switch position through the intelligent unit display board 112, and can also be used to display current power information, etc.
[0082] As Figure 1 shown, as an alternative embodiment, in the embodiment of the present utility model, the second housing 116 further includes: a terminal cover 1161. The terminal cover covers the second interface 1131. It can also cover above the third interface 1134 and the fourth interface 1135.
[0083] In this embodiment, the terminal cover 1161 is used to cover the interfaces exposed outside after the circuit breaker body 12 and the intelligent control device 11 are installed, thereby ensuring the integration of the installation.
[0084] As an alternative embodiment, in the embodiment of the present utility model, the intelligent unit main board further includes a fourth interface 1135;
[0085] The fourth interface 1135 is connected to the second control chip 1130 and is used to connect to an intelligent electric meter and / or an intelligent sensor.
[0086] The fourth interface 1135 can be a telemetry signal + 485 communication interface. Through the fourth interface 1135, it is possible to flexibly expand the acquisition of data from devices such as smart electricity meters and smart sensors.
[0087] As Figure 4 shown, as an alternative implementation, in the embodiments of the present utility model, the smart unit power board 114 includes:
[0088] A protection current transformer interface 1148 for connecting to a protection current transformer 1152;
[0089] A metering current transformer interface 1142 for connecting to a metering current transformer 1151;
[0090] A temperature sensor interface 1143 for connecting to a cable temperature sensor 1153. Among them, the protection current transformer 1152, the metering current transformer 1151, and the cable temperature sensor 1153 can all be connected to the corresponding interfaces in a plug-in manner.
[0091] As an alternative implementation, in the embodiments of the present utility model, the smart unit power board 114 includes a first isolation circuit 1146. The first control chip 1140 is connected to the fourth interface 1135 through the first isolation circuit 1146;
[0092] The smart unit main board 113 includes a second isolation circuit 1138. The second control chip 1130 is connected to the fourth interface 1135 through the second isolation circuit 1138.
[0093] A sixth interface 1145 corresponding to the fourth interface 1135 is also provided on the smart unit power board 114. The fourth interface 1135 can be plugged into the sixth interface 1145. After the first control chip 1140 is connected to the sixth interface 1145 through the first isolation circuit 1146, it is then connected to the fourth interface 1135.
[0094] In this embodiment, by connecting to the fourth interface 1135 through the first isolation circuit 1146 and the second isolation circuit 1138 respectively, signal interference can be reduced and the reliability of data transmission can be improved.
[0095] Based on the circuit breaker assembled with the circuit breaker intelligent control device provided in this embodiment, it has a simple structure, is easy to deploy, has a low cost, and does not require replacing the original molded case circuit breaker, which can effectively avoid resource waste and save costs. Moreover, it also improves the intelligent and digital level of traditional molded case circuit breakers and enhances the user's ability to monitor, control, and warn about the operating conditions of key nodes in the low-voltage distribution network.
[0096] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to exhaustively list all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of this utility model creation.
Claims
1. A circuit breaker intelligent control device, characterized in that: include: Communication module (111); An intelligent unit board, the communication module (111) being detachably connected to the intelligent unit board, and the intelligent unit board being connected to a meter reading terminal via the communication module (111); The intelligent unit board is also connected to the circuit breaker body (12) and is used to monitor the gate position status inside the circuit breaker body.
2. The circuit breaker intelligent control device according to claim 1, characterized in that: The intelligent unit board comprises: an intelligent unit main board (113) and an intelligent unit power supply board (114); The intelligent unit power board (114) comprises a first control chip (1140) and a first interface (1141) connected to the first control chip (1140); The intelligent unit mainboard (113) comprises a second control chip (1130), a second interface (1131) for connecting to the first interface (1141), and a communication module interface (1132) for connecting to the communication module (111); the communication module interface (1132) is also connected to the second control chip (1130); The second control chip (1130) is connected to the first control chip (1140) via a first transmission terminal (1147); The second interface (1131) is also connected to the circuit breaker body (12).
3. The circuit breaker intelligent control device according to claim 2, characterized in that: The circuit breaker intelligent control device further comprises: a first housing (115), wherein the intelligent unit board is arranged inside the first housing (115); The first housing (115) further comprises: A metering transformer (1151), a protection transformer (1152), and a cable temperature sensor (1153), wherein the metering transformer (1151) and the protection transformer (1152) are integrated, and the cable temperature sensor (1153) is used to monitor the temperature of the cable passing through the circuit breaker body (12); The metering transformer (1151), the protection transformer (1152), and the cable temperature sensor (1153) are all electrically connected to the intelligent unit power board (114).
4. The circuit breaker intelligent control device according to claim 3, characterized in that: The intelligent unit mainboard (113) further includes a sampling circuit (1137); The sampling circuit (1137) is connected to the incoming terminal of the circuit breaker body (12) via a third interface (1134); The sampling circuit (1137) is also connected to the second control chip (1130).
5. The circuit breaker intelligent control device according to claim 3, characterized in that: The intelligent control device (11) further comprises: a second shell (116); the first shell (115) and the second shell (116) are connected via a card slot; and the second shell (116) is provided with a front panel.
6. The circuit breaker intelligent control device according to claim 5, characterized in that: The front panel includes a plurality of buttons and a display screen window, and the intelligent control device (11) further includes: an intelligent unit display panel (112); The smart unit display panel (112) is arranged above the smart unit main board (113), and is electrically connected to the smart unit display panel (112) via a smart unit display panel interface (1136) arranged above the smart unit main board (113); The front panel covers the smart unit display panel (112).
7. The circuit breaker intelligent control device according to claim 5, characterized in that: The second housing (116) further comprises: a terminal cover plate (1161), wherein the terminal cover plate (1161) covers the second interface (1131).
8. The circuit breaker intelligent control device according to claim 2, characterized in that: The intelligent unit mainboard further includes a fourth interface (1135); The fourth interface (1135) is connected to the second control chip (1130) and is used to connect to a smart meter and / or a smart sensor.
9. The circuit breaker intelligent control device according to claim 3, characterized in that: The intelligent unit power board comprises: A protection transformer interface (1148), used for connecting to the protection transformer (1152); A metering transformer interface (1142), used for connecting to the metering transformer (1151); The temperature sensor interface (1143) is used to connect to the cable temperature sensor (1153).
10. The circuit breaker intelligent control device according to claim 8, characterized in that: The intelligent unit power board (114) comprises a first isolation circuit (1146), and the first control chip (1140) is connected to the fourth interface (1135) via the first isolation circuit (1146); The intelligent unit mainboard (113) comprises a second isolation circuit (1138), and the second control chip (1130) is connected to the fourth interface (1135) via the second isolation circuit (1138).