CN112731004A - Direct current feeder device - Google Patents
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- CN112731004A CN112731004A CN202011395048.9A CN202011395048A CN112731004A CN 112731004 A CN112731004 A CN 112731004A CN 202011395048 A CN202011395048 A CN 202011395048A CN 112731004 A CN112731004 A CN 112731004A
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Abstract
本申请涉及一种直流馈线装置。所述直流馈线装置包括：母线、至少两个断路器、与各断路器对应的接线端子，各断路器的输入端均与母线连接，各断路器的输出端与对应的接线端子连接，断路器内部集成至少两个功能元件。采用该直流馈线装置能够通过母线获取电源总线的直流电信号，并将电源总线的直流电信号传输给断路器，断路器将该直流电信号传输至连接在接线端子的外接电气设备，由于断路器集合了至少两种监测电源总线直流电信号的检测部件，无需将监测电源总线的各元件分别连接至电源总线，提高了空间利用率，同时简化了直流馈线装置中的安装步骤，提高了安装效率。
The present application relates to a DC feeder device. The DC feeder device includes: a bus, at least two circuit breakers, and terminals corresponding to the circuit breakers, the input ends of the circuit breakers are connected to the bus bars, the output ends of the circuit breakers are connected to the corresponding connection terminals, and the circuit breakers are connected to the corresponding connection terminals. At least two functional elements are integrated internally. The DC feeder device can obtain the DC signal of the power bus through the bus, and transmit the DC signal of the power bus to the circuit breaker, and the circuit breaker transmits the DC signal to the external electrical equipment connected to the terminal. The two detection components for monitoring the DC signal of the power supply bus do not need to connect the components of the monitoring power supply bus to the power supply bus respectively, which improves the space utilization rate, simplifies the installation steps in the DC feeder device, and improves the installation efficiency.
Description
Technical Field
The application relates to the technical field of direct-current power supplies, in particular to a direct-current feeder device.
Background
With the development of the dc power supply technology, most of the power operation power supplies in power plants and substations nowadays are dc power supplies, and the dc feeder device is applied to a dc feeder screen for receiving a dc electrical signal of a power bus and supplying power to each element in the dc feeder device and electrical equipment externally connected to the dc feeder device.
The elements in the prior art are connected by wiring, and the elements are relatively independent.
Therefore, the direct current feeder device in the prior art has the problems of complex installation and low space utilization rate in actual use.
Disclosure of Invention
In view of the above, it is necessary to provide a dc feeder device that is easy to install and has a high space efficiency.
A dc feeder apparatus, the dc feeder apparatus comprising: the circuit breaker comprises a bus, at least two circuit breakers and connecting terminals corresponding to the circuit breakers; the input end of each circuit breaker is connected with the bus, and the output end of each circuit breaker is connected with the corresponding wiring terminal;
at least two functional elements are integrated inside the circuit breaker.
In one embodiment, the dc feeder apparatus further includes a housing, and the bus bar, the circuit breaker, and the connection terminal are disposed inside the housing.
In one embodiment, the shell comprises a panel and a base, wherein the panel and the base surround to form a cavity; the bus, the circuit breaker and the wiring terminal are all located inside the cavity and are installed on the base.
In one embodiment, the base is provided with at least one rail on which the circuit breaker and/or the connection terminal are mounted.
In one embodiment, the circuit breaker and/or the wiring terminal are removably mounted on the rail.
In one embodiment, at least two of an overcurrent protection element, a leakage current monitoring element, a breaker state sensing element and a load electrification indicating element are integrated in the breaker.
In one embodiment, the circuit breaker further comprises smart electronics; the intelligent electronic element is connected with other functional elements in the circuit breaker;
and the intelligent electronic element is used for receiving the output signals of other functional elements.
In one embodiment, the smart electronic component includes a microprocessor, at least one communication interface coupled to the microprocessor, the microprocessor for transmitting the output signal to an external device via the communication interface.
In one embodiment, the circuit breaker is a two-section protection circuit breaker or a three-section protection circuit breaker.
In one embodiment, the bus bar is a cylindrical copper bar or a rectangular copper bar.
The direct-current feeder device comprises a bus, at least two circuit breakers and wiring terminals corresponding to the circuit breakers, wherein the input end of each circuit breaker is connected with the bus, the output end of each circuit breaker is connected with the corresponding wiring terminals, and at least two functional elements are integrated in each circuit breaker. The direct current signal of the power bus is obtained through the bus, at least two circuit breakers can be connected to the bus, the direct current signal transmitted by the bus is received, the direct current signal is transmitted to external electrical equipment connected to a wiring terminal, at least two detection parts for monitoring the direct current signal of the power bus are integrated with the circuit breakers, all elements of the monitoring power bus are not required to be connected to the power bus respectively, only the external electrical equipment to be controlled is connected to the wiring terminal, the external electrical equipment is controlled through the circuit breakers connected with the wiring terminal, the space is saved, the space utilization rate is improved, meanwhile, the installation step of the direct current feeder device is simplified, and the installation efficiency is improved.
Drawings
FIG. 1 is a block diagram of an embodiment of a DC feeder apparatus;
fig. 2 is a structural view of a dc feeder apparatus in another embodiment;
FIG. 3 is a diagram of the housing structure of the DC feeder device in one embodiment;
FIG. 4 is a block diagram of a base within the housing in one embodiment;
FIG. 5 is a block diagram of a circuit breaker in the DC feeder apparatus of one embodiment;
fig. 6 is a block diagram showing a circuit breaker in the dc feeder apparatus according to another embodiment;
FIG. 7 is a block diagram of the structure of an intelligent electronic component in one embodiment;
fig. 8 is a block diagram of a dc feeder apparatus in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The numbering of the components as such, for example "first", "second", etc., in this application is used solely to distinguish between the objects depicted and not to imply any order or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The feeder screen is also a wiring cabinet, and can distribute a strong current bus or a weak current bus to each external electrical device after the strong current bus or the weak current bus is connected into the cabinet body. For example, an air switch box of a power line and a multimedia distribution box for decoration in recent years belong to a feeder screen, and the air switch box can be called as a feeder screen due to large internal capacity of a cabinet body in an enterprise and public institution, an industrial and mining enterprise, a market and a recreation place, and the air switch box is called as a feeder box when the internal capacity of a cabinet body in a home place is small. The feeder screen can be divided into an ac feeder screen and a dc feeder screen by the difference of the received signals, and in this application, a dc feeder device in the dc feeder screen is mainly described. In the practical use of the power system, the direct current signal of the accessed power bus needs to be monitored, so that the faults of external electrical equipment caused by faults of serious overload, short circuit, undervoltage and the like of the bus are avoided. When monitoring the direct current signal of the accessed power bus, monitoring elements such as a leakage current monitoring element, a circuit breaker, an indicator light and an auxiliary contact alarming contact element need to be connected with the bus respectively in a wiring mode, so that wiring in a direct current feeder screen is messy, installation is complex and space utilization rate is low.
Based on this, fig. 1 is a block diagram of a dc feeder apparatus according to an embodiment of the present application. As shown in fig. 1, the dc feeder apparatus includes: a bus 101, at least two circuit breakers 102, and a connection terminal 103 corresponding to each circuit breaker 102; the input end of each circuit breaker 102 is connected with the bus 101, and the output end of each circuit breaker 102 is connected with the corresponding wiring terminal 103; the circuit breaker 102 has at least two functional elements integrated therein.
In the embodiment of the present application, the bus 101 is configured to receive a dc electrical signal of a power bus and distribute the dc electrical signal of the power bus to each external device through a circuit breaker. The bus can be externally connected with two wires which are respectively connected with the positive and negative wires of the power bus to receive the direct current signal of the power bus. Optionally, the bus bar is made of a conductive material, for example, the conductive material may be a copper bar or an aluminum bar, which is not limited herein. Meanwhile, the shape of the bus bar may be a cylinder or a cuboid, which is not limited herein.
The input end of the circuit breaker 102 is connected to the bus, and the output end of the circuit breaker 102 is connected to the connecting terminal. The breaker 102 is configured to receive a dc signal transmitted by the bus, detect whether the received dc signal is abnormal, and disconnect the load circuit when an abnormal condition occurs. For example, when the received direct current signal is detected to be 150A, the rated current value of the rated direct current signal is 100A, and the current value is larger than the rated current value, the circuit is abnormal, the circuit breaker is tripped, the circuit is cut off, the accident is prevented from being expanded, and the safe operation is ensured. Alternatively, the circuit breaker may be a selective type circuit breaker and a non-selective type circuit breaker, which is not limited herein.
At least two functional elements are integrated in the circuit breaker 102, and the functional elements may be an overcurrent protection element, a leakage current monitoring element, a circuit breaker state sensing element, a load electrification indicating element, an intelligent electronic element, and the like, which is not limited herein. The integrated at least two functional elements may integrate two protection elements, namely, a leakage current monitoring element and an overcurrent protection element, or integrate three protection elements, namely, a leakage current monitoring element, a current monitoring element and a breaker state sensing element, or integrate five protection elements, namely, an overcurrent protection element, a leakage current monitoring element, a breaker state sensing element and a load electrification indicating element, and the like, or integrate six protection elements, namely, an overcurrent protection element, a leakage current monitoring element, a breaker state sensing element, a load electrification indicating element and an intelligent electronic element, and are not limited herein.
The overcurrent protection element is used for receiving direct current transmitted by a bus, and if the current value exceeds the rated current value, protective measures such as overload long delay, short circuit instantaneous protection, short circuit short delay protection and the like are implemented to drive the circuit breaker to trip, namely, the switch is switched off. The leakage current monitoring element is used for receiving the direct current transmitted by the bus and measuring the leakage current value of the direct current transmitted by the bus in real time. The current monitoring element is used for receiving the direct current transmitted by the bus and measuring the current value of the direct current transmitted by the bus in real time. The breaker state sensing element is used for receiving the closing state of the breaker switch and monitoring whether the state of the overcurrent protection element is closed or opened. The load electrification indicating element is used for receiving direct current transmitted by the bus, and a light emitting part of the indicating lamp is driven through a voltage signal of the direct current to light or extinguish the light emitting part. And the intelligent electronic element is used for receiving the output signals of other functional elements and transmitting the output signals to external receiving equipment.
The connection terminal 103 is connected to an output end of the circuit breaker 102, and the connection terminal 103 is used for providing a connection terminal for external electrical equipment. For example, the terminals may be european terminals, plug terminals, building wiring terminals, fence terminals, spring terminals, rail terminals, wall terminals, photoelectric coupling terminals, ring terminals, tubular terminals, copper strips, iron strips, etc., without limitation.
The direct-current feeder device comprises a bus, at least two circuit breakers and wiring terminals corresponding to the circuit breakers, wherein the input end of each circuit breaker is connected with the bus, the output end of each circuit breaker is connected with the corresponding wiring terminals, and at least two functional elements are integrated in each circuit breaker. The direct current signal of the power bus is obtained through the bus, the circuit breaker receives the direct current signal transmitted by the bus and transmits the direct current signal to the external electrical equipment connected with the wiring terminal, because the circuit breaker is integrated with at least two detection parts for monitoring the direct current signal of the power bus, and the circuit breaker integrated with at least two detection parts for monitoring the direct current signal of the power bus only needs to connect the input end interface of the circuit breaker with the bus without connecting each element of the monitoring power bus to the power bus respectively, so as to detect whether the direct current signal of the power bus is abnormal or not, only needs to connect the external electrical equipment to be controlled to the wiring terminal, controls the external electrical equipment through the circuit breaker connected with the wiring terminal, saves space, improves space utilization rate, and simplifies installation steps in the direct current feeder device, the installation efficiency is improved.
The above embodiment describes an internal component of a dc feeder apparatus, and the dc feeder apparatus needs to protect the internal component in practical use, so as to increase the service life and prevent dust, liquid, etc. from damaging various functional elements, so that a protective casing needs to be provided for the internal component of the dc feeder apparatus, and now the casing is described with an embodiment, as shown in fig. 2, on the basis of the above embodiment, the present application further provides a dc feeder apparatus, where the dc feeder apparatus further includes a casing 201, and a bus 202, a circuit breaker 203, and a connection terminal 204 are all provided inside the casing.
In the present embodiment, the housing 201 is used to mount the bus bar 202, the circuit breaker 203, and the connection terminal 204 inside the housing and enclose them. Alternatively, the housing may be a plastic material, such as Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polystyrene (PS), and acrylonitrile-butadiene-styrene copolymer (ABS), without limitation. The material of the housing may also be metal, such as steel, iron, etc., without limitation.
The shape of the housing 201 may be a rectangular parallelepiped or a cylinder, and the housing may be shaped by a sheet metal process, which is not limited herein.
In this embodiment, the dc feeder device further includes a housing, and the bus, the circuit breaker, and the connection terminal are all disposed inside the housing. Because adopt the casing with generating line, circuit breaker and binding post parcel inside, protected generating line, circuit breaker and binding post, can increase direct current feeder device's life.
The foregoing embodiment describes a housing in a dc feeder apparatus, the housing wraps a bus, a circuit breaker and a connection terminal inside, and in practical use, the bus, the circuit breaker and the connection terminal are necessarily fixed, so that the bus, the circuit breaker and the connection terminal can be fixed on a base of the housing, and after the bus, the circuit breaker and the connection terminal are installed, a cavity is formed by surrounding a panel and the base, and the bus, the circuit breaker and the connection terminal are inside the housing. Based on this, the housing of the dc feeder device is further described in an embodiment, as shown in fig. 3, the present application further provides a dc feeder device, in which the housing includes a panel 301 and a base panel 302, and the base encloses a cavity; the bus, the circuit breaker and the wiring terminal are all located inside the cavity and are installed on the base.
The housing of the dc feeder device includes a panel 301 and a base 302, where the panel 301 and the base 302 surround to form a cavity, and the bus, the circuit breaker, and the terminal may be fixed on the base 302 of the housing. Optionally, an observation window is disposed on the panel 301 according to the display interface of the load indicating element of the circuit breaker, wherein the observation window may be rectangular or circular, and is not limited herein.
Optionally, the bus, the circuit breaker, and the connection terminal may be directly mounted on the base through screws, or a guide rail may be added to the base, and the bus, the circuit breaker, and the connection terminal are directly mounted on the guide rail through screws, which is not limited herein.
In the direct current feeder device that this application embodiment provided, casing among the direct current feeder device includes that panel and base panel surround with the base and form the cavity, and generating line, circuit breaker and binding post all are located inside the cavity, and install on the base. Because all be located the cavity with generating line, circuit breaker and binding post inside, panel and base surround the cavity that forms and protect generating line, circuit breaker and binding post, can increase direct current feeder device's life, all install generating line, circuit breaker and binding post on the base simultaneously, make direct current feeder device inside simple clean and tidy, the installation of being convenient for.
The shell mentioned in the previous embodiment comprises a panel and a base, wherein the panel and the base surround to form a cavity, and the bus, the circuit breaker and the wiring terminal are all located inside the cavity and are installed on the base. In order to make the generating line, circuit breaker and binding post all be located the cavity inside, and install on the base, the accessible sets up the guide rail, installs circuit breaker and/or binding post on the guide rail. As shown in fig. 4, in one embodiment, the base is provided with at least one rail 401 on which the circuit breaker and/or the wiring terminals are mounted.
The guide rail provided on the base may be a standard 35mm electrical guide rail, or may be a general electrical guide rail, which is not limited herein. Alternatively, the circuit breaker and the corresponding terminal may be mounted on the same rail, or the circuit breaker and the corresponding terminal may be mounted on two rails, respectively, which is not limited herein.
Alternatively, the guide rail may be mounted by directly fixing the guide rail to the base through screws, or by adhering the guide rail to the base through adhesion, which is not limited herein.
In this embodiment, the base is provided with at least one rail on which the circuit breaker and/or the connection terminal are mounted. Because at least one guide rail is arranged on the base, units formed by a plurality of groups of circuit breakers and wiring terminals in the direct current feeder device can be arranged in the direct current feeder device in order, the space is reasonably planned, the space utilization rate is improved, and the installation is convenient.
The above embodiments have been described for a dc feeder housing, in which the guide rails are provided in the component parts of the housing base, and on the basis of the above embodiments, the circuit breaker and/or the connection terminal are detachably mounted on the guide rails.
The circuit breaker and/or the wiring terminal are detachably mounted on the guide rail, and the circuit breaker and/or the wiring terminal are mounted on the guide rail through screws and can be detached and remounted when replacement is needed, for example, the circuit breaker in the original direct current feeder device is a two-section type protection circuit breaker, and at the moment, the circuit breaker needs to have a short-circuit short-delay protection function when in use, and then the two-section type protection circuit breaker needs to be replaced by a three-section type protection circuit breaker, so that the original two-section type protection circuit breaker needs to be detached, and the three-section type protection circuit breaker is mounted at the original position after detachment.
In this embodiment, the circuit breaker and/or the wiring terminal are detachably mounted on the guide rail, so that the direct-current feeder device has the characteristic of flexibly replacing internal elements, and the elements can be replaced and adjusted according to real-time needs, so that the direct-current feeder device has more functions and expansibility.
The above embodiments have been described with respect to the case of the dc feeder apparatus, and in practical use, the circuit breaker of the dc feeder apparatus can cut off and connect the load circuit, and cut off the fault circuit, so as to protect the electric appliance and the line. In this embodiment, the circuit breaker in the dc feeder apparatus is further described, as shown in fig. 5, at least two of an overcurrent protection element 501, a leakage current monitoring element 502, a current monitoring element 503, a circuit breaker state sensing element 504, and a load live indicating element 505 are integrated inside the circuit breaker.
At least two functional elements are integrated inside the circuit breaker, and the functional elements may be an overcurrent protection element, a leakage current monitoring element, a circuit breaker state sensing element, a load electrification indicating element, and the like, which is not limited herein. The integrated at least two functional elements may integrate two protection elements, namely, a leakage current monitoring element and an overcurrent protection element, or integrate three protection elements, namely, a leakage current monitoring element, a current monitoring element and a breaker state sensing element, or integrate four protection elements, namely, an overcurrent protection element, a leakage current monitoring element, a current monitoring element and a load electrification indicating element, or integrate five protection elements, namely, an overcurrent protection element, a leakage current monitoring element, a breaker state sensing element and a load electrification indicating element, which is not limited herein.
The overcurrent protection element is used for receiving direct current transmitted by a bus, and if the current value exceeds the rated current value, overload long delay, short circuit instantaneous protection and short circuit short delay protection are implemented to drive the circuit breaker to trip, namely, the switch is switched off. Alternatively, the overcurrent protection may be thermal protection and magnetic protection, and may also be electronic protection. For example, when the received dc signal is detected to be 120A, the rated current value of the rated dc signal is 100A, and the current value is greater than the rated current value, the circuit is abnormal, the circuit breaker trips, and the circuit is cut off.
The leakage current monitoring element is used for receiving direct current transmitted by the bus, measuring the leakage current value of the direct current transmitted by the bus in real time and transmitting detected leakage current information to the intelligent electronic unit. Optionally, the leakage current monitoring element may be a leakage current sensor, for example, the leakage current sensor detects a direct current signal output by each branch, when the branch is insulated normally, the currents flowing through the sensors are equal in magnitude and opposite in direction, and the output signal is zero; when the branch circuit is grounded, the leakage current sensor has a differential current flowing through, and the output of the sensor is not zero.
The current monitoring element is used for receiving the direct current transmitted by the bus and measuring the current value of the direct current transmitted by the bus in real time. Optionally, the current detection element can be a current sensor, can detect information of current to be detected in the circuit breaker, can convert the detected information into an electric signal meeting certain standard requirements or information in other required forms according to a certain rule, and outputs the electric signal or the information in other required forms to the intelligent electronic element.
The circuit breaker state sensing element is used for receiving the closing state of a circuit breaker switch, monitoring whether the state of the overcurrent protection element is closed or opened, and transmitting the closing state information of the circuit breaker switch to the intelligent electronic element.
The load electrification indicating element is used for receiving direct current transmitted by the bus, and a light emitting part of the indicating lamp is driven through a voltage signal of the direct current to light or extinguish the light emitting part. Alternatively, the load electrification indicating element may be an indicator lamp or an LED display screen, which is not limited herein. For example, taking the load electrification indicating element as an indicator light, when the load electrification indicating element receives the direct current transmitted by the bus, a voltage signal of the direct current drives a light emitting part of the indicator light, and the light emitting part is turned on or off, where the load electrification indicating element is kept normally on when a circuit in the direct current feeder device normally works, and if the circuit in the direct current feeder device is abnormal, the load electrification indicating element is turned off; when the load electrification indicating element receives the direct current transmitted by the bus, the voltage signal of the direct current drives the light emitting part of the indicator light to flash, and if the circuit in the direct current feeder device is abnormal, the load electrification indicating element is extinguished, which is not limited herein. Illustratively, the load electrification indicating element is an LED display screen, and displays the voltage value of the direct current in the direct current feeder device when the circuit in the direct current feeder device is working normally.
In this embodiment, at least two of an overcurrent protection element, a leakage current monitoring element, a breaker state sensing element, and a load electrification indicating element are integrated inside the breaker. Because the circuit breaker has gathered overcurrent protection component, leakage current monitoring component, circuit breaker state perception component, the electrified indicating element of load, saved the space in the direct current feeder device, improved space utilization, simultaneously, need not be connected overcurrent protection component, leakage current monitoring component, circuit breaker state perception component, the electrified indicating element decibel of load and power bus, reduced the wiring for the installation of direct current feeder device is more simple and convenient.
On the basis of the above embodiments, as shown in fig. 6, in one embodiment, the circuit breaker further includes a smart electronic component 601; the intelligent electronic element is connected with other functional elements in the circuit breaker; and the intelligent electronic element is used for receiving the output signals of other functional elements.
The intelligent electronic element is used for receiving measured values of current signals of the overcurrent protection element, the leakage current monitoring element, the breaker state sensing element and the load electrification indicating element and carrying out signal transmission in a wired or wireless mode.
In this embodiment, the circuit breaker further comprises an intelligent electronic component; the intelligent electronic element is connected with other functional elements in the circuit breaker; and the intelligent electronic element is used for receiving the output signals of other functional elements. Output signals of other functions can be transmitted to the data processing center, and the data processing center can timely feed back whether the direct current feeder device is abnormal or not by monitoring the output signals.
The above embodiments describe the components integrated inside the circuit breaker, wherein the intelligent electronic component is connected to other functional components inside the circuit breaker, and is used for receiving output signals of other functional components. In one embodiment, the intelligent electronic component is further described, as shown in fig. 7, the intelligent electronic component includes a microprocessor 701, and at least one communication interface 702 connected to the microprocessor 701, and the microprocessor 701 is configured to transmit an output signal to an external device through the communication interface 702.
The microprocessor 701 is configured to receive output signals of other functional elements. Optionally, the microprocessor may be implemented by a Micro Control Unit (MCU) chip, a dsp (digital Signal processing) chip, or a Field Programmable Gate Array (FPGA) chip, which is not limited in the embodiment of the present application.
Wherein the microprocessor is connected to at least one communication interface 702 for sending the output signal to an external device. Optionally, the communication interface sends the output signal to an external device, and information may be transmitted in a wired manner or a wireless manner, which is not limited herein. Optionally, the communication interface may also adopt interfaces such as CAN, ethernet or wireless bluetooth, 4G/5G, and the like, which is not limited herein.
In this embodiment, the intelligent electronic component includes a microprocessor, and at least one communication interface connected to the microprocessor, and the microprocessor is configured to transmit the output signal to the external device through the communication interface. Because the intelligent electronic component receives the measured values of the current signals of the overcurrent protection component, the leakage current monitoring component, the breaker state sensing component and the load electrification indicating component, and performs signal transmission in a wired or wireless mode through the communication interface, the interactivity of data is increased, and meanwhile, the direct current signal of the direct current feeder device is monitored in real time, so that the abnormality can be found in time and hidden dangers can be solved.
On the basis of the above embodiments, the circuit breaker is a two-stage protection circuit breaker or a three-stage protection circuit breaker.
The two-section type protection circuit breaker is a circuit breaker with short circuit instantaneous protection and overload long-delay protection. The three-section type protection circuit breaker is a circuit breaker with short circuit instantaneous protection, short circuit short delay protection and overload long delay protection.
In this embodiment, the circuit breaker is a two-stage protection circuit breaker or a three-stage protection circuit breaker. Different circuit breakers can be selected according to the protection function in practical application, and the practicability of the direct-current feeder device is improved.
On the basis of the above embodiment, the bus bar is a cylindrical copper bar or a rectangular copper bar.
The bus can be externally connected with two wires which are respectively connected with the positive and negative wires of the power bus to receive the direct current signal of the power bus. The bus is a cylindrical copper bar or a rectangular copper bar, and has high current density, low resistance and small skin effect, and does not need to be used for capacity reduction.
In this embodiment, the bus bar is a cylindrical copper bar or a rectangular copper bar. Because the bus connects each current-carrying branch loop in the distribution device together, the bus plays the role of collecting, distributing and transmitting electric energy, and when the bus is in operation, huge electric energy passes through, and when the circuit is in short circuit, the bus bears great heating and electrodynamic force effect, therefore, the bus is a cylindrical copper bar or a rectangular copper bar, and because the current density is large, the resistance is small, the skin effect is small, the capacity reduction is not needed, and the safety and the economy of the direct-current feeder device are improved.
Fig. 8 is a structural diagram of a dc feeder apparatus according to an embodiment of the present application, and as shown in fig. 8, the dc feeder apparatus includes: bus 801, breaker 802, terminal 803, housing 804.
The bus 801 is configured to receive a dc signal of a power bus, and distribute the dc signal of the power bus to each external device through a circuit breaker. Optionally, the bus bar is a rectangular copper bar.
The input terminal of the breaker 802 is connected to the bus 801, and the output terminal thereof is connected to the connection terminal 803. The breaker is used for receiving the direct current signal transmitted by the bus, detecting whether the received direct current signal is abnormal or not, and cutting off or switching on a load circuit. The circuit breaker comprises an overcurrent protection element, a leakage current monitoring element, a circuit breaker state sensing element, a load electrification indicating element and an intelligent electronic element which are integrated inside. Optionally, the circuit breaker is a two-stage protection circuit breaker or a three-stage protection circuit breaker.
The connection terminal 803 is connected to an output terminal of the circuit breaker, and is used for providing a connection terminal for an external electrical device. Optionally, the terminal is a plug-in terminal.
The housing 804 is used to mount the bus bar, the circuit breaker and the terminal inside the housing and to enclose them, forming an enclosed cavity. The housing includes a panel and a base, wherein the circuit breaker and the wiring terminal are mounted on a guide rail of the base.
In this embodiment, the dc feeder device includes the generating line, two at least circuit breakers, with the binding post that each circuit breaker corresponds, the input of each circuit breaker all is connected with the generating line, the output of each circuit breaker is connected with the binding post that corresponds, the inside at least two functional element that integrate of circuit breaker. The direct current signal of the power bus is obtained through the bus, at least two circuit breakers are connected to the bus, the direct current signal transmitted by the bus is received, the direct current signal is transmitted to the external electrical equipment connected to the wiring terminal, because the circuit breaker is integrated with at least two detection parts for monitoring the direct current signals of the power supply bus, the elements of the monitoring power supply bus do not need to be connected to the power supply bus respectively, only the external electrical equipment to be controlled needs to be connected to the wiring terminal, the circuit breaker connected with the wiring terminal controls the external electrical equipment, saves space, improves space utilization rate, meanwhile, the installation steps in the direct current feeder device are simplified, the installation efficiency is improved, detected signals can be transmitted in a wired or wireless mode through intelligent electronic elements inside the circuit breaker, and the data interactivity is improved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011395048.9A CN112731004A (en) | 2020-12-03 | 2020-12-03 | Direct current feeder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011395048.9A CN112731004A (en) | 2020-12-03 | 2020-12-03 | Direct current feeder device |
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| CN112731004A true CN112731004A (en) | 2021-04-30 |
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| CN202011395048.9A Pending CN112731004A (en) | 2020-12-03 | 2020-12-03 | Direct current feeder device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202308781U (en) * | 2011-10-28 | 2012-07-04 | 哈尔滨九洲电气股份有限公司 | Feeder unit module structure |
| CN203722065U (en) * | 2014-01-20 | 2014-07-16 | 安徽泰昂电力技术有限公司 | Feeder module device |
| JP2016092881A (en) * | 2014-10-30 | 2016-05-23 | 有限会社バベッジ | Breaker and breaker device control |
| CN207410110U (en) * | 2017-10-31 | 2018-05-25 | 许继电源有限公司 | DC power supply feed panel, AC power feed panel and feed element module |
| CN109560616A (en) * | 2019-01-21 | 2019-04-02 | 深圳市泰昂能源科技股份有限公司 | A kind of feeder means and DC feeder screen |
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2020
- 2020-12-03 CN CN202011395048.9A patent/CN112731004A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202308781U (en) * | 2011-10-28 | 2012-07-04 | 哈尔滨九洲电气股份有限公司 | Feeder unit module structure |
| CN203722065U (en) * | 2014-01-20 | 2014-07-16 | 安徽泰昂电力技术有限公司 | Feeder module device |
| JP2016092881A (en) * | 2014-10-30 | 2016-05-23 | 有限会社バベッジ | Breaker and breaker device control |
| CN207410110U (en) * | 2017-10-31 | 2018-05-25 | 许继电源有限公司 | DC power supply feed panel, AC power feed panel and feed element module |
| CN109560616A (en) * | 2019-01-21 | 2019-04-02 | 深圳市泰昂能源科技股份有限公司 | A kind of feeder means and DC feeder screen |
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