CN216354000U - Intelligent molded case circuit breaker with metering and communication functions - Google Patents
Intelligent molded case circuit breaker with metering and communication functions Download PDFInfo
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- CN216354000U CN216354000U CN202120818534.0U CN202120818534U CN216354000U CN 216354000 U CN216354000 U CN 216354000U CN 202120818534 U CN202120818534 U CN 202120818534U CN 216354000 U CN216354000 U CN 216354000U
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Abstract
The utility model discloses an intelligent plastic shell circuit breaker with a metering communication function, which is characterized by comprising a circuit breaker shell, a metering protection module, a communication module, a state detection module and a temperature monitoring module. The utility model reduces the volume of the molded case circuit breaker through high integration and realizes the metering communication function.
Description
Technical Field
The utility model relates to an intelligent plastic shell circuit breaker with a metering communication function, and belongs to the technical field of circuit protection.
Background
With the construction and development of the ubiquitous power internet of things of the country, the low-voltage power distribution system serving as the tail end of the smart power grid is an important component for constructing a strong smart power grid. The development of an intelligent molded case circuit breaker as one of core elements forming a low-voltage power distribution system is an important foundation for constructing the intelligent low-voltage power distribution system.
The existing intelligent circuit breaker usually has the following problems:
the common intelligent circuit breaker in the market generally only has a protection function and does not have power measurement and carrier communication functions. In order to expand functions of metering communication and the like, various functional modules need to be integrated in the circuit breaker, so that the volume of the circuit breaker is inevitably increased, and the use of a user is influenced.
Secondly, in order to know the opening and closing state and the fault tripping state of the circuit breaker from the background terminal, a state acquisition accessory is usually additionally arranged in the circuit breaker, and the accessory is large in size and occupies the installation position of a communication module so as to increase the size of the intelligent circuit breaker in order to meet the requirement of the universal shape and size of the industry.
In some important use occasions, in order to ensure the running reliability of a power distribution system, the temperature rise of the circuit breaker is often monitored, and detection data are transmitted to a background for processing. The existing intelligent circuit breaker usually does not have a temperature detection function, and the use requirements of users cannot be effectively met.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is that the existing common molded case circuit breaker is large in size and cannot meet the temperature monitoring requirement.
In order to solve the technical problems, the technical scheme of the utility model is to provide an intelligent plastic shell circuit breaker with a metering communication function, which mainly comprises a circuit breaker shell, a metering protection module, a communication module, a state detection module and a temperature monitoring module.
The circuit breaker shell comprises a base, a middle cover and a panel which are sequentially arranged from bottom to top; the base is arranged in a first assembling groove which is arranged at the wire outlet end and has an opening facing the middle cover; the middle cover is arranged on a second assembling groove which is arranged at the wire outlet end and has an opening facing the base, and a third assembling groove which is arranged in the middle and has an opening facing the panel.
The metering protection module comprises a metering mutual inductor, a quick saturation mutual inductor, a magnetic flux tripper, a metering protection assembly board and a backup protection assembly; the metering protection component board sequentially comprises a power supply board, a metering board, a control board and a display board from bottom to top; the power panel gets electricity from the incoming line end of the circuit breaker, and the metering protection assembly board and the communication module can still work normally after the circuit breaker is powered off. The metering protection module is arranged in a first assembly groove on the base and a second assembly groove on the middle cover. The measurement of parameters such as current, voltage, power, electric quantity, frequency and the like is realized through the metering mutual inductor and the metering plate. Through the fast saturation mutual inductor, the control panel and the magnetic flux release, basic protection functions such as overload, short circuit, overvoltage and undervoltage, phase failure and zero fault, grounding fault and the like are realized. The display panel is provided with a liquid crystal display screen, buttons, an indicator light and a USB interface, and provides a human-computer interaction interface for parameter inquiry and setting for a user. The backup protection component mainly comprises an iron core, an armature and a spring, and under the condition that the electronic protection function fails, the circuit is protected from being damaged by short-circuit current through magnetic protection; the backup protection assembly is used for enabling three phases of the circuit breaker to have a backup protection function.
The communication module comprises a module housing, a module cover plate and a communication circuit board assembly; the communication module is arranged between the third mounting groove of the middle cover and the panel. The communication circuit board assembly is provided with a communication plug-in terminal which is connected with a socket on the control board in a plug-in mode; the control panel is provided with an external communication interface, and a user can connect the external communication interface with the background terminal to realize remote measurement of electric parameters and remote parameter setting and control of the circuit breaker. The communication module is in a plug-in connection mode, can be used for replacing a communication circuit board assembly and a circuit breaker communication mode and supporting multiple communication modes such as RS485, HPLC, 4G, micropower wireless and the like.
The state detection module comprises a bracket, an alarm push rod, an auxiliary push rod, a return spring and a microswitch; the state detection module is arranged in a third mounting groove of the middle cover; the state detection module is connected with the control panel through the plug-in terminal and can transmit the state of the circuit breaker to the terminal through the communication module. The state detection module is used for identifying the on-off state of the circuit breaker by the rotation action of the rotating shaft on the auxiliary push rod and identifying whether the circuit breaker is in fault tripping or not by the rotation action of the tripping upper push rod on the alarm push rod.
The temperature monitoring module comprises a temperature module housing, a bottom plate and a temperature measuring circuit board; the temperature monitoring module is arranged at the bottom of the circuit breaker; the temperature measurement circuit board is arranged between the temperature module housing and the bottom plate; the temperature measurement circuit board is provided with a group of temperature measurement terminals which are respectively connected with fastening screws on the incoming and outgoing line terminals of the circuit breaker, and the temperature of each terminal of the circuit breaker is determined in a temperature compensation mode by detecting the temperature of the fastening screws connected with the incoming and outgoing line terminals. The temperature monitoring module is selected according to user requirements for selection.
Drawings
Fig. 1 is a schematic diagram of a smart circuit breaker configuration;
FIG. 2 is a schematic structural diagram of the intelligent circuit breaker after the middle cover is removed;
FIG. 3 is a view showing the construction of the base;
FIG. 4 is a view showing the construction of the middle cap;
FIG. 5 is a schematic structural diagram of a metering protection module;
FIG. 6 is a schematic view of a metering circuit board assembly;
FIG. 7 is a schematic view of a communication module;
FIG. 8 is a diagram illustrating the structure and operation of a status detection module;
FIG. 9 is a diagram of a temperature measurement module;
FIG. 10 is a schematic view of the temperature measurement module assembly;
fig. 11 is a schematic view of the housing structure.
Detailed Description
In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1-2, the intelligent plastic shell circuit breaker comprises a circuit breaker shell, a communication module 4, a state detection module 5, a temperature detection module 6 and a metering protection module 7; the circuit breaker housing includes a middle cover 1, a panel 2, and a base 3.
As shown in fig. 2-6, the metering protection module 7 includes a metering protection assembly plate 71, a casing 72, a trip unit bracket 73, a metering transformer 74, a transformer bracket 75, a fast saturation transformer 76, a backup protection assembly 77, and a flux trip unit 78. The metering protection module 7 is arranged in the first assembly groove 32 on the base 3 and the second assembly groove 13 on the middle cover 2.
The mutual inductor bracket 75 is arranged in the first assembling groove 32 on the base 3, and the bottom of the mutual inductor bracket is connected with the base 3 in a screw fastening mode; the metering transformer 74 and the fast saturation transformer 76 are arranged in the cavity of the transformer bracket 75; the tripper bracket 73 is arranged above the transformer bracket 75 in a screw fastening mode; the magnetic flux release 78 is arranged above the release bracket 73 in a screw fastening manner; the cover 72 is arranged above the release bracket 73 and is connected with the release bracket 73 in a barb buckling manner; the metering protection component plate 71 is arranged in the mounting cavity of the housing 72; the upper ends of the metering protection component plate 71 and the housing 72 are arranged in the second assembly groove of the middle cover.
The metering protection component board 71 comprises a power supply board 714, a metering board 713, a control board 712 and a display board 711 in sequence from bottom to top. The power panel 714 takes electricity from the incoming line end of the circuit breaker, and the wiring groove 31 and the electricity taking hole 32 are formed in the base 3, so that the requirement of the power panel 714 for taking electricity and wiring is met; after the breaker is powered off, the metering protection assembly plate 71 and the communication module 4 can still work normally. The output lead of the metering transformer 74 is provided with a plug terminal which is connected with a first socket 7131 on the metering board 713 in a plug mode. And the output lead of the rapid saturation transformer 76 is provided with a plug terminal which is connected with the second socket 7125 on the control board 712 in a plug mode. The input lead of the magnetic flux release 78 is provided with a plug terminal, and is connected with the third socket 7123 on the control board 712 in a plug mode.
The metering protection module 7 measures parameters such as current, voltage, power, electric quantity, frequency and the like through the metering mutual inductor 74 and the metering plate 713; through the fast saturation mutual inductor 76, the control panel 712 and the magnetic flux release 78, basic protection functions such as overload, short circuit, overvoltage and undervoltage, phase failure and zero fault, grounding fault and the like are realized. The display panel 711 is provided with a liquid crystal display 7114, a button 7115, an indicator lamp 7113 and a USB interface 7112, and provides a human-computer interface for user parameter query and setting. The backup protection component 77 mainly comprises an iron core, an armature and a spring, and under the condition that the electronic protection function fails, the circuit is protected from being damaged by short-circuit current through magnetic protection; the backup protection module 77 is configured to enable all three phases of the circuit breaker to have a backup protection function.
As shown in fig. 1 and 7, the communication module 4 includes a module housing 41, a module cover 43, and a communication board assembly 42; the communication module 4 is arranged between the third mounting groove 11 of the middle cover 1 and the panel 2. The communication circuit board assembly 42 is provided with a communication plug terminal 421, which is connected with the socket 7121 on the control board 712 in a plug-in manner for signal transmission; an external communication interface 7122 is arranged on the control panel 712, and a user can connect the external communication interface 7122 with a background terminal to realize remote measurement of electric parameters and remote parameter setting and control of the circuit breaker. The communication module 4 is connected in a plugging manner, can replace the communication circuit board assembly 42 and the circuit breaker, and supports various communication modes such as RS485, HPLC, 4G, micropower wireless and the like.
As shown in fig. 2 and 8, the state detection module 5 includes a bracket 51, an alarm push rod 54, an auxiliary push rod 52, a return spring and micro switch 53, and a micro switch 55. The state detection module 5 is arranged in a third mounting groove 12 on the middle cover 1; the state detection module 5 is connected to the control board 712 via the socket terminal 551, and can transmit the breaker state to the terminal via the communication module 4. The state detection module 5 identifies the on-off state of the circuit breaker by the rotation action of the rotating shaft 9 on the auxiliary push rod 52, and identifies whether the circuit breaker is in fault tripping or not by the rotation action of the tripping push rod 8 on the alarm push rod 54.
Referring to fig. 9-11, the temperature detection module 6 includes a temperature module housing 61, a bottom plate 62, and a temperature measurement circuit board 63. The temperature detection module 6 is arranged at the bottom of the circuit breaker; the temperature measuring circuit board 63 is arranged between the temperature module cover 61 and the bottom plate 62; a group of temperature measuring terminals 631 are arranged on the temperature measuring circuit board 63 and are respectively connected with the fastening screws 64 on the circuit breaker inlet and outlet terminals, and the temperature of each terminal of the circuit breaker is determined in a temperature compensation mode by detecting the temperature of the fastening screws 64 connected with the inlet and outlet terminals. The output lead of the temperature measurement circuit board 63 is provided with a plug terminal, which passes through the power-taking hole 612 on the cover 61 and is connected with the socket 7124 on the control board 712 in a plug-in manner. The housing 61 is provided with a wiring groove 611 as a wiring groove of the temperature measuring terminal 631. The temperature detection module is selected for matching according to the requirements of users; when a user installs the temperature detection module, the power-taking lead of the power panel 714 passes through the power-taking hole 612 and the wiring groove 611 on the cover 61, and is connected with the inlet terminal screw, so that the inlet terminal power-taking mode of the power panel 714 is realized.
Claims (4)
1. An intelligent plastic shell circuit breaker with a metering communication function is characterized by comprising a circuit breaker shell, a metering protection module, a communication module, a state detection module and a temperature monitoring module;
the circuit breaker shell comprises a base, a middle cover and a panel which are sequentially arranged from bottom to top; the base is arranged at the wire outlet end, and the opening of the base faces the first assembling groove of the middle cover; the middle cover is arranged at the wire outlet end, the opening of the middle cover faces to the second assembling groove of the base, and the middle cover is arranged at the middle part of the middle cover, the opening of the middle cover faces to the third assembling groove of the panel;
the metering protection module comprises a metering mutual inductor, a quick saturation mutual inductor, a magnetic flux tripper, a metering protection assembly board and a backup protection assembly; the metering protection component board sequentially comprises a power supply board, a metering board, a control board and a display board from bottom to top; the power panel takes electricity from the incoming line end of the circuit breaker, so that the metering protection assembly board and the communication module can still work normally after the circuit breaker is powered off; the metering protection module is arranged in a first assembly groove on the base and a second assembly groove on the middle cover; the measurement of current, voltage, power, electric quantity and frequency parameters is realized through the metering mutual inductor and the metering plate; basic protection functions of overload, short circuit, overvoltage and undervoltage, phase failure and zero fault and ground fault are realized through the rapid saturation mutual inductor, the control panel and the magnetic flux release; the display panel is provided with a liquid crystal display screen, a button, an indicator light and a USB interface, and provides a human-computer interaction interface for parameter query and setting for a user; the backup protection component comprises an iron core, an armature and a spring, and under the condition that the electronic protection function fails, the circuit is protected from being damaged by short-circuit current through magnetic protection; the backup protection assembly is used for enabling three phases of the circuit breaker to have a backup protection function.
2. The intelligent plastic case circuit breaker with metering communication function of claim 1, wherein the communication module comprises a module housing, a module cover plate and a communication circuit board assembly; the communication module is arranged between the third mounting groove of the middle cover and the panel; the communication circuit board assembly is provided with a communication plug-in terminal which is connected with the socket on the control panel in a plug-in mode; an external communication interface is arranged on the control panel, and a user can connect the external communication interface with the background terminal to realize remote measurement of electric parameters and remote parameter setting and control of the circuit breaker; the communication module is in a plug-in connection mode, can replace a communication circuit board assembly and a circuit breaker communication mode by replacing the communication circuit board assembly, and supports multiple RS485, HPLC, 4G and micropower wireless communication modes.
3. The intelligent plastic case circuit breaker with metering and communication functions of claim 2, wherein the state detection module comprises a bracket, an alarm push rod, an auxiliary push rod, a return spring and a microswitch; the state detection module is arranged in a third mounting groove of the middle cover; the state detection module is connected with the control panel through the plug-in terminal and can transmit the state of the circuit breaker to the terminal through the communication module; the state detection module is used for identifying the on-off state of the circuit breaker by the rotation action of the rotating shaft on the auxiliary push rod and identifying whether the circuit breaker is in fault tripping or not by the rotation action of the tripping upper push rod on the alarm push rod.
4. The intelligent plastic case circuit breaker with metering and communication functions of claim 3, wherein the temperature monitoring module comprises a temperature module housing, a bottom plate and a temperature measuring circuit board; the temperature monitoring module is arranged at the bottom of the circuit breaker; the temperature measuring circuit board is arranged between the temperature module housing and the bottom plate; the temperature measurement circuit board is provided with a group of temperature measurement terminals which are respectively connected with fastening screws on the incoming and outgoing line terminals of the circuit breaker, and the temperature of each terminal of the circuit breaker is determined in a temperature compensation mode by detecting the temperature of the fastening screws connected with the incoming and outgoing line terminals; the temperature monitoring module is selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120818534.0U CN216354000U (en) | 2021-04-21 | 2021-04-21 | Intelligent molded case circuit breaker with metering and communication functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120818534.0U CN216354000U (en) | 2021-04-21 | 2021-04-21 | Intelligent molded case circuit breaker with metering and communication functions |
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| Publication Number | Publication Date |
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| CN216354000U true CN216354000U (en) | 2022-04-19 |
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| CN202120818534.0U Active CN216354000U (en) | 2021-04-21 | 2021-04-21 | Intelligent molded case circuit breaker with metering and communication functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115148556A (en) * | 2022-09-01 | 2022-10-04 | 浙江正泰电器股份有限公司 | Integrated protection module and circuit breaker |
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2021
- 2021-04-21 CN CN202120818534.0U patent/CN216354000U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115148556A (en) * | 2022-09-01 | 2022-10-04 | 浙江正泰电器股份有限公司 | Integrated protection module and circuit breaker |
| CN115148556B (en) * | 2022-09-01 | 2024-01-23 | 浙江正泰电器股份有限公司 | Integrated protection module and circuit breaker |
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