阅读说明：本技术 一种集成的直流馈电单元装置 (Integrated direct current feed unit device ) 是由 段玉杰 刘启广 孙增强 李欢 李宏志 张卫峰 张博宇 张瑞华 郑港生 张立恒 于 2021-08-19 设计创作，主要内容包括：本发明涉及直流操作电源系统技术领域,具体地说,涉及一种集成的直流馈电单元装置。其包括安装装置,所述安装装置包括安装壳,所述安装装置内设置有微型断路器、支路绝缘监测模块和开关量监测模块,所述安装壳的一侧设置有开口,所述安装壳一侧的开口处铰接有盖板,该集成的直流馈电单元装置中,通过设置的安装装置,可以对安装壳的大小以及微型断路器的数量进行调整,使得安装装置可根据机柜的大小来进行组装,以便于不需要根据机柜的大小来对该装置进行生产,解决了目前各种开关器件需要在电流直流机柜内完成组装、配线等生产任务,需要等定制机柜到厂后才能开始生产,进而导致了开关器件的生产效率降低的问题。(The invention relates to the technical field of direct current operation power supply systems, in particular to an integrated direct current feed unit device. It includes installation device, installation device is including the installation shell, be provided with miniature circuit breaker, branch insulation monitoring module and switching value monitoring module in the installation device, one side of installation shell is provided with the opening, the opening part of installation shell one side articulates there is the apron, among this integrated direct current feed unit device, through the installation device who sets up, can adjust the size of installation shell and miniature circuit breaker's quantity for installation device can assemble according to the size of rack, so that need not come to produce the device according to the size of rack, solved present various switching device need accomplish the equipment in electric current direct current rack, production tasks such as distribution, customization rack can just begin production after to the factory such as needs, and then the problem that has leaded to switching device's production efficiency to reduce.)

1. An integrated dc feed cell arrangement, characterized by: including installation device (100), installation device (100) are including installation shell (110), be provided with miniature circuit breaker (111), branch insulation monitoring module and switching value monitoring module in installation device (100), one side of installation shell (110) is provided with the opening, the opening part of installation shell (110) one side articulates there is apron (120), miniature circuit breaker (111) are provided with a plurality ofly, branch insulation monitoring module includes direct current leakage current sensor CG1, direct current leakage current sensor CG1 sets up the below at miniature circuit breaker (111), the positive pole and the negative pole of miniature circuit breaker (111) are connected with the positive pole and the negative pole of direct current leakage current sensor CG1, direct current leakage current sensor CG 1's G port ground connection, switching value monitoring module is connected with miniature circuit breaker (111).

2. The integrated dc feed cell device of claim 1, wherein: be connected with the pilot lamp between the positive pole of miniature circuit breaker (111) output and the negative pole for the instruction to miniature circuit breaker (111) circular telegram, the pilot lamp is installed at one side outer wall of apron (120).

3. The integrated dc feed cell device of claim 1, wherein: an opening hole (121) is formed in one side of the cover plate (120), the opening hole (121) is located right in front of an electric gate in the miniature circuit breaker (111), and the electric gate in the miniature circuit breaker (111) penetrates through the opening hole (121).

4. The integrated dc feed cell device of claim 1, wherein: the switching value monitoring module comprises a controller IC1, a connector CON1 and a triode Q1, wherein a port 1 of the controller IC1 is connected with a power supply, a port 2 of the controller IC1 is connected with the output end of a miniature circuit breaker (111), a port 3 of the controller IC1 is grounded, a port 4 of the controller IC1 is connected with a port 1 of the connector CON1, a port 2 of the connector CON1 is connected with a triode Q1, and a port 3 of the connector CON1 is grounded.

5. The integrated dc feed cell device of claim 1, wherein: the branch circuit insulation monitoring module further comprises a coupling capacitor C1, a coupling capacitor C2 and a switch S1, the input ends of the coupling capacitor C1 and the coupling capacitor C2 are connected with the output end of the miniature circuit breaker (111), the output end of the coupling capacitor C1 is connected with the input end of the switch S1, an alternating current signal generator is further connected between the output end of the coupling capacitor C1 and the input end of the switch S1, the output end of the switch S1 is connected with the input end of the miniature circuit breaker (111), and an A/D conversion circuit is connected between the output end of the switch S1 and the input end of the miniature circuit breaker (111).

6. The integrated dc feed cell device of claim 5, wherein: the branch circuit insulation monitoring module is characterized in that an amplifying circuit is further arranged in the branch circuit insulation monitoring module, the amplifying circuit comprises a collector resistor RC, a base resistor RB, an emitter resistor RE and a transformer T, the output end of the collector resistor RC is connected with a coupling capacitor C3, the output end of the coupling capacitor C3 is connected with the input end of the base resistor RB, the output end of the base resistor RB is connected with the input end of the transformer T, the output end of the transformer T is connected with the input end of the emitter resistor RE, and the output end of the transformer T is further connected with a coupling capacitor C4.

7. The integrated dc feed cell device of claim 5, wherein: the branch insulation monitoring module is internally provided with a communication circuit, the input end of the communication circuit is connected with the output end of the A/D conversion circuit, and the output end of the communication circuit is connected with an equipment terminal.

8. The integrated dc feed cell device of claim 7, wherein: and the output end of the communication circuit adopts an RS-485 interface.

Technical Field

The invention relates to the technical field of direct current operation power supply systems, in particular to an integrated direct current feed unit device.

Background

The cabinet is an indispensable component in the electrical equipment and is a carrier of the electrical control equipment; typically made of cold rolled steel sheet or alloy. Can provide the protection functions of water resistance, dust prevention, electromagnetic interference resistance and the like for the storage equipment.

The rack needs to cooperate various switching device to use, and various switching device need accomplish production tasks such as equipment, distribution in the current direct current rack at present, need wait customization rack to the factory after just can begin to produce, and then has leaded to switching device's production efficiency to reduce, and simultaneously, present switching device does not possess the function to switch and insulation monitoring, when switching device is about to take place to damage, can not protect switching device the very first time.

Disclosure of Invention

The present invention is directed to an integrated dc power feeding unit device to solve the above problems.

For realizing above-mentioned purpose, an integrated direct current feed unit device is provided, including installation device, installation device is including the installation shell, be provided with miniature circuit breaker, branch insulation monitoring module and switching value monitoring module in the installation device, one side of installation shell is provided with the opening, the opening part of installation shell one side articulates there is the apron, miniature circuit breaker is provided with a plurality ofly, branch insulation monitoring module includes direct current leakage current sensor CG1, direct current leakage current sensor CG1 sets up the below at miniature circuit breaker, miniature circuit breaker's positive pole and negative pole are connected with the positive pole and the negative pole of direct current leakage current sensor CG1, direct current leakage current sensor CG 1's G port ground connection, switching value monitoring module is connected with miniature circuit breaker.

As a further improvement of the technical scheme, an indicator lamp is connected between the anode and the cathode of the output end of the miniature circuit breaker and used for indicating the electrification of the miniature circuit breaker, and the indicator lamp is installed on the outer wall of one side of the cover plate.

As a further improvement of the technical scheme, an opening is formed in one side of the cover plate, the opening is located right ahead of an electric gate in the miniature circuit breaker, and the electric gate in the miniature circuit breaker penetrates through the opening.

As a further improvement of the present technical solution, the switching value monitoring module includes a controller IC1, a connector CON1, and a triode Q1, a port 1 of the controller IC1 is connected with a power supply, a port 2 of the controller IC1 is connected with an output end of the miniature circuit breaker, a port 3 of the controller IC1 is grounded, a port 4 of the controller IC1 is connected with a port 1 of the connector CON1, a port 2 of the connector CON1 is connected with the triode Q1, and a port 3 of the connector CON1 is grounded.

As a further improvement of the technical solution, the branch insulation monitoring module further includes a coupling capacitor C1, C2 and a switch S1, the input ends of the coupling capacitor C1 and the coupling capacitor C2 are connected with the output end of the miniature circuit breaker, the output end of the coupling capacitor C1 is connected with the input end of the switch S1, an alternating current signal generator is further connected between the output end of the coupling capacitor C1 and the input end of the switch S1, the output end of the switch S1 is connected with the input end of the miniature circuit breaker, and an a/D conversion circuit is connected between the output end of the switch S1 and the input end of the miniature circuit breaker.

As a further improvement of the technical solution, an amplifying circuit is further arranged in the branch insulation monitoring module, the amplifying circuit includes a collector resistor RC, a base resistor RB, an emitter resistor RE and a transformer T, an output end of the collector resistor RC is connected with a coupling capacitor C3, an output end of the coupling capacitor C3 is connected with an input end of the base resistor RB, an output end of the base resistor RB is connected with an input end of the transformer T, an output end of the transformer T is connected with an input end of the emitter resistor RE, and an output end of the transformer T is further connected with a coupling capacitor C4.

As a further improvement of the technical scheme, a communication circuit is arranged in the branch insulation monitoring module, the input end of the communication circuit is connected with the output end of the A/D conversion circuit, and the output end of the communication circuit is connected with an equipment terminal.

As a further improvement of the technical scheme, an RS-485 interface is adopted at the output end of the communication circuit.

Compared with the prior art, the invention has the beneficial effects that:

1. among this integrated direct current feed unit device, through the installation device who sets up, can adjust the size of installation shell and miniature circuit breaker's quantity, make installation device can assemble according to the size of rack, so that need not come to produce the device according to the size of rack, solved present various switching device and need accomplish the equipment in electric current direct current rack, production tasks such as distribution, need wait customization rack just can begin production after the factory, and then the problem that has leaded to switching device's production efficiency to reduce.

2. In this integrated direct current feed unit device, through the insulating monitoring module of branch road that sets up, can detect the insulating nature between the circuit to in time discovery and the processing to the circuit.

3. In this integrated direct current feed unit device, through the switching value monitoring module who sets up, when connecing wrong power cord, can the automatic cutout power, when the voltage is too high, automatic disconnection, and then the whole module of protection is not destroyed.

4. In the integrated direct current feed unit device, the signal in the branch insulation detection module can be amplified through the arranged amplifying circuit, so that the monitoring accuracy of the switching value monitoring module is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a mounting case according to embodiment 1 of the present invention;

FIG. 3 is a schematic view of a cover plate structure according to embodiment 1 of the present invention;

fig. 4 is a schematic diagram of the operation of the miniature circuit breaker according to embodiment 1 of the present invention;

fig. 5 is a working schematic diagram of a switching value monitoring module according to embodiment 1 of the present invention;

fig. 6 is a working schematic diagram of a branch insulation monitoring module according to embodiment 1 of the present invention;

fig. 7 is an operational schematic diagram of an amplifying circuit according to embodiment 2 of the present invention;

the various reference numbers in the figures mean:

100. a mounting device;

110. mounting a shell; 111. a miniature circuit breaker;

120. a cover plate; 121. and (6) opening holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

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

Example 1

Referring to fig. 1 to 6, an integrated dc feed unit device is provided, which includes a mounting device 100, the mounting device 100 includes a mounting case 110, a micro circuit breaker 111, a branch insulation monitoring module and a switching value monitoring module are disposed in the mounting device 100, an opening is disposed at one side of the mounting case 110, a cover plate 120 is hinged to the opening at one side of the mounting case 110, a plurality of micro circuit breakers 111 are disposed, the branch insulation monitoring module includes a dc leakage current sensor CG1, the dc leakage current sensor CG1 is disposed below the micro circuit breaker 111, an anode and a cathode of the micro circuit breaker 111 are connected to an anode and a cathode of the dc leakage current sensor CG1, a G port of the dc leakage current sensor CG1 is grounded, the switching value monitoring module is connected to the micro circuit breaker 111, and the size of the mounting case 110 and the number of the micro circuit breakers 111 can be adjusted by the mounting device 100, so that the mounting device 100 can be assembled according to the size of the cabinet so that the device does not need to be produced according to the size of the cabinet.

When the installation device 100 of the device is used specifically, the same number of miniature circuit breakers 111 are installed according to the size of a cabinet, so that the miniature circuit breakers 111 do not need to be produced according to the size of the cabinet, when the miniature circuit breakers 111 work, the direct current leakage current sensors CG1 are installed on positive and negative outgoing lines of a direct current loop in a surrounding mode, when the device runs, signals output by all branch sensors are detected in real time, when the branch insulation condition is normal, the currents flowing through the sensors are equal in magnitude and opposite in direction, the output signals are zero, when the branches are grounded, the leakage current sensors have differential currents flowing through, the output of the sensors is not zero, therefore, the direct current system grounding branches can be judged by detecting the output signals of all the branch sensors, and the protection of the miniature circuit breakers 111 is realized.

In addition, in order to realize the instruction to the operating condition of miniature circuit breaker 111, be connected with the pilot lamp between the positive pole of miniature circuit breaker 111 output and the negative pole for the instruction to miniature circuit breaker 111 circular telegram, the pilot lamp is installed at one side outer wall of apron 120, and when miniature circuit breaker 111 circular telegram, the pilot lamp lights, and when miniature circuit breaker 111 did not circular telegram, the pilot lamp was closed, and then through the quick operating condition who understands miniature circuit breaker 111 of pilot lamp.

Further, for the convenience of controlling miniature circuit breaker 111, trompil 121 has been seted up to one side of apron 120, trompil 121 is located miniature circuit breaker 111 internal electric gate's dead ahead, miniature circuit breaker 111 internal electric gate passes trompil 121, when needs are opened or are closed miniature circuit breaker 111, can realize the control to miniature circuit breaker 111 through promoting the electric gate that sets up in trompil 121, so that need not open apron 120 when control, improve the efficiency of controlling miniature circuit breaker 111.

Still further, the switching value monitoring module includes a controller IC1, a connector CON1, and a triode Q1, a 1 port of the controller IC1 is connected with a power supply, a 2 port of the controller IC1 is connected with an output end of the miniature circuit breaker 111, a 3 port of the controller IC1 is grounded, a 4 port of the controller IC1 is connected with a 1 port of the connector CON1, a 2 port of the connector CON1 is connected with a triode Q1, a 3 port of the connector CON1 is grounded, when the 2 port of the connector CON1 outputs a low level, the optical coupler is turned on, a base of the triode Q1 receives a low level and is not turned on, and when the other party receives a high level, the received high level is the high level required by the other party, so that a circuit board of the other party cannot be damaged;

when the 2 port of the connector CON1 outputs a high level, the optocoupler is not turned on, the base of the transistor Q1 receives the high level, and is turned on, and the other party receives the low level.

Specifically, the branch insulation monitoring module further comprises coupling capacitors C1, C2 and a switch S1, wherein input ends of the coupling capacitors C1 and C2 are connected with an output end of the miniature circuit breaker 111, an output end of the coupling capacitor C1 is connected with an input end of the switch S1, an alternating current signal generator is further connected between an output end of the coupling capacitor C1 and an input end of the switch S1, an output end of the switch S1 is connected with an input end of the miniature circuit breaker 111, an a/D conversion circuit is connected between an output end of the switch S1 and an input end of the miniature circuit breaker 111, the branch insulation monitoring module adopts an alternating current injection method, when an insulation fault occurs on a bus, the branch insulation monitoring module injects an alternating current signal into the bus through the alternating current signal generator, when branch insulation is normal, the alternating current small signal passes through an alternating current small transformer twice after passing through a load, amplitudes of the two times are equal and opposite in direction, the induction signals generated on the small mutual inductor are mutually offset, and no induction current exists on the mutual inductor when the external appearance is seen, so that the system is normal; when the branch circuit is grounded in a pure resistive mode, part of alternating current small signals are lost through a grounding resistor, the amplitude of incoming and outgoing signals is unequal, the directions are opposite, and the branch circuit is judged to have an insulation fault due to induced current generated on the small mutual inductor.

Example 2

In order to improve the accuracy of the branch insulation monitoring module, the following improvements are made on the basis of the embodiment 1:

referring to fig. 7, an amplifying circuit is further disposed in the branch insulation monitoring module, the amplifying circuit includes a collector resistor RC, a base resistor RB, an emitter resistor RE and a transformer T, an output end of the collector resistor RC is connected to a coupling capacitor C3, an output end of the coupling capacitor C3 is connected to an input end of the base resistor RB, an output end of the base resistor RB is connected to an input end of the transformer T, an output end of the transformer T is connected to an input end of the emitter resistor RE, an output end of the transformer T is further connected to a coupling capacitor C4, and the coupling capacitor C3 and the coupling capacitor C4 serve to "isolate direct current from alternating current" in the circuit; the capacitance of the capacitor is in inverse proportion to the frequency, so that under the condition of direct current, the capacitance is equivalent to an open circuit, and the amplifying circuit is reliably isolated from a signal source; when the capacitance is sufficiently large, the capacitance of the coupling capacitor is extremely small with respect to an ac input signal in a predetermined frequency range, and the ac input signal can be considered as a short circuit, so that the ac signal passes through without being attenuated.

Example 3

In order to realize quick awareness of the operation of the branch insulation monitoring module, the following improvements are made on the basis of embodiment 1:

the branch insulation monitoring module is internally provided with a communication circuit, the input end of the communication circuit is connected with the output end of the A/D conversion circuit, the output end of the communication circuit is connected with an equipment terminal, the running condition of the branch insulation monitoring module is checked through the equipment terminal (computer), and then the branch insulation monitoring module does not need to be checked manually on site.

Furthermore, in order to improve the stability of the communication circuit for transmitting signals to the equipment terminal, the output end of the communication circuit adopts an RS-485 interface, the RS-485 has two-wire system and four-wire system connection, the four-wire system can only realize a point-to-point communication mode, the four-wire system is rarely adopted, and the two-wire system connection mode is mostly adopted, the connection mode is a bus type topological structure, at most 32 nodes can be connected on the same bus, and meanwhile, the RS-485 has certain anti-interference capability, so that the stability of the communication circuit for transmitting signals to the equipment terminal is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.