CN215817534U - Power distribution device - Google Patents
Power distribution device Download PDFInfo
- Publication number
- CN215817534U CN215817534U CN202121112840.9U CN202121112840U CN215817534U CN 215817534 U CN215817534 U CN 215817534U CN 202121112840 U CN202121112840 U CN 202121112840U CN 215817534 U CN215817534 U CN 215817534U
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- Prior art keywords
- protection circuit
- alternating current
- switch
- distribution
- current distribution
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model is suitable for the field of power distribution, and provides a power distribution device which comprises a mains supply access interface, two generators and two alternating current distribution boards, wherein the generators correspond to the alternating current distribution boards one by one, each alternating current distribution board comprises a lightning protection circuit, an alternative switch, a protection circuit and a distribution module which are sequentially connected, and the output end of the protection circuit is also connected with a direction selection switch. The reasonable output of power distribution is realized by reasonably controlling the switching state of the alternative switch of the alternating current distribution board, two generators can work simultaneously or singly, the power supply capacity of the guarantee vehicle is also improved, and the long-time stable operation of the guarantee vehicle is ensured; and still set up lightning protection circuit and protection circuit, can guarantee that the AC distribution board can stable operation, guarantee operating stability and security.
Description
Technical Field
The utility model belongs to the field of power distribution, and particularly relates to a power distribution device.
Background
The power distribution design is a key part in the design of the guarantee vehicle, and the normal operation of a power distribution system of the guarantee vehicle is related to the normal work of the guarantee vehicle. In the power distribution design of guarantee car at present, generally adopt single generator, though can maintain the normal power supply demand of guarantee car, still there is power supply not enough to and some uncertain factors, for example the long-time full load work of generator can influence the life-span of generator, generator input current voltage also receives the thunder and lightning to influence easily moreover, has the potential safety hazard.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to provide a power distribution apparatus, which aims to solve the above technical problems.
The utility model adopts the following technical scheme:
the power distribution device includes commercial power access interface, two generators and two AC distribution boards, generator and AC distribution board one-to-one, the AC distribution board is including the lightning protection circuit, two select switch, protection circuit and the distribution module that connect in order, the protection circuit output still is connected with the selection to the switch, switch of the same way in two select switch of AC distribution board is connected to the generator that corresponds through lightning protection circuit, and another way switch is connected to through lightning protection circuit the commercial power access interface, the AC distribution board still include with the communication interface that protection circuit connects, the selection of two AC distribution boards is to the same one-way gating of switch constantly, and is used for being connected to the inverter circuit that charges after the gating output.
Furthermore, the protection circuit comprises an overcurrent detection circuit, a phase detection circuit and an overvoltage and undervoltage detection circuit which are connected in sequence.
Further, the communication interface is an RS485 interface.
Furthermore, each output branch of the distribution module is provided with a voltage detection unit, a current detection unit and a frequency detection unit which are connected to the communication interface.
The utility model has the beneficial effects that: the two generators and the two alternating current distribution plates are adopted, the reasonable output of power distribution is realized by reasonably controlling the switching state of the alternative switch of the alternating current distribution plates, the two generators can work simultaneously or singly, the power supply capacity of the vehicle is also improved, and the long-time stable operation of the vehicle is guaranteed; and still set up lightning protection circuit and protection circuit, can guarantee that the AC distribution board can stable operation, guarantee operating stability and security.
Drawings
Fig. 1 is a structural diagram of a power distribution apparatus according to an embodiment of the present invention.
Fig. 2 is a block diagram of a protection circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention 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 utility model and are not intended to limit the utility model.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 shows a structure of a power distribution apparatus provided by an embodiment of the present invention, and only a part related to the embodiment of the present invention is shown for convenience of explanation.
As shown in fig. 1, the utility power access interface 1, two generators and two ac distribution boards provided in this embodiment, wherein a first engine is labeled as 2, a second engine is labeled as 3, a first ac distribution board is labeled as 4, a second ac distribution board is labeled as 5, the generators and the ac distribution boards correspond to each other one by one, the ac distribution boards include a lightning protection circuit 61, an alternative switch 62, a protection circuit 63 and a distribution module 64, which are connected in sequence, an output end of the protection circuit 63 is further connected with a direction selection switch, wherein the direction selection switch of the first ac distribution board is labeled as K5, and the direction selection switch of the second ac distribution board is labeled as K6. One path of switch in the alternative alternating current distribution plate alternative switch is connected to a corresponding generator through a lightning protection circuit, the other path of switch is connected to the commercial power access interface through the lightning protection circuit, namely two paths of switches of the alternative alternating current distribution plate alternative switch are respectively marked as K1 and K2, two paths of switches of the alternative alternating current distribution plate alternative switch are respectively marked as K3 and K4, the switches are controlled through a relay, and K1, K2, K3 and K4 can only be gated all the way. K1 is connected to the commercial power access interface through the lightning protection circuit, and K2 is connected to the generator No. one through the lightning protection circuit, and K3 is connected to the commercial power access interface through the lightning protection circuit, and K4 is connected to the generator No. two through the lightning protection circuit. The alternating current distribution boards further comprise a communication interface 65 connected with the protection circuit, and the direction selection switches K5 and K6 of the two alternating current distribution boards are gated in a single way at the same time and are used for being connected to the charging inverter circuit 6 after being output in a gating mode.
The commercial power access interface is used for being externally connected with a commercial power supply, and the external power and the first generator firstly pass through the lightning protection circuit of the first alternating current distribution board and then are interlocked through the switches K1 and K2 to provide alternating current input for the first alternating current distribution board. The external power supply and the second generator firstly pass through the lightning protection circuit of the second AC distribution board and then are interlocked through the relays K3 and K4 to provide AC input for the second AC distribution board. When the external power is input, K1 and K3 are closed, K2 and K4 are opened, and the whole system is powered by the external power; when the external power is not input, K2 and K4 are closed, K1 and K3 are opened, and the whole system is respectively powered by two generators.
The two alternating current distribution boards can independently output the input alternating current to corresponding equipment output interfaces through the distribution module which is finally divided into 9 paths of AC380V and 5 paths of AC 220V.
After the K5 and the K6 are interlocked, the AC220V input is provided for the charging inverter circuit. When the load of the first alternating current distribution board is light, the switch K5 is closed, the switch K6 is opened, and the charging inverter circuit is powered by the first alternating current distribution board; when the load on the second AC distribution board is light, the switch K6 is closed, the switch K5 is opened, and the charging inverter circuit is powered by the second AC distribution board. Therefore, the two generators can supply power in a balanced manner. And each output branch of each alternating current distribution board distribution module is provided with a voltage detection unit, a current detection unit and a frequency detection unit which are connected to the communication interface, so that the actual complexity of the alternating current distribution board can be calculated.
In this embodiment, the communication interface is an RS485 interface, and communicates and controls with the power supply control unit through the interface.
When the lightning protection device is used in outdoor conditions, the lightning protection device can avoid damage to rear-end equipment caused by lightning. Alternating currents input by an external power supply and two generators need to pass through the lightning protection circuit and then are controlled and distributed, and safety is guaranteed.
As shown in fig. 2, the protection circuit 63 includes an overcurrent detection circuit 631, a phase detection circuit 632, and an overvoltage/undervoltage detection circuit 633, which are connected in sequence. The alternating current distribution board mainly distributes alternating current input by an external power supply (three-phase AC 380V/single-phase AC220V) and two generators (three-phase AC 380V). Meanwhile, the voltage, the current and the frequency of each branch can be sampled, the power of each branch is calculated, the power is uploaded to the power supply control unit through RS485 communication, and the power is uniformly reported to the whole-cabin intelligent management system by the power supply control unit. Through the protection circuit, this device possesses protection functions such as overcurrent, lack of phase, wrong phase, excessive pressure, undervoltage, lightning protection, and crosses undervoltage, overcurrent protection point and all adjustable, guarantees operating stability and security.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a power distribution device, its characterized in that includes commercial power access interface, two generators and two blocks of alternating current distribution boards, generator and alternating current distribution board one-to-one, the alternating current distribution board is including the lightning protection circuit, two select a switch, protection circuit and the distribution module that connect in order, the protection circuit output still is connected with the selection to the switch, switch of the same way in the two select a switch of alternating current distribution board is connected to the generator that corresponds through the lightning protection circuit, and another way switch is connected to through the lightning protection circuit the commercial power access interface, the alternating current distribution board still include with the communication interface that protection circuit connects, the selection of two blocks of alternating current distribution boards is to the same one way gating of switch constantly, and is used for being connected to the inverter circuit that charges after the gating output.
2. The power distribution apparatus of claim 1, wherein the protection circuit comprises an over-current detection circuit, a phase detection circuit, and an over-voltage and under-voltage detection circuit connected in series.
3. The power distribution apparatus of claim 2 wherein the communication interface is an RS485 interface.
4. The power distribution apparatus of claim 3, wherein each output branch of the distribution module has a voltage detection unit, a current detection unit, and a frequency detection unit connected to the communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121112840.9U CN215817534U (en) | 2021-05-24 | 2021-05-24 | Power distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121112840.9U CN215817534U (en) | 2021-05-24 | 2021-05-24 | Power distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215817534U true CN215817534U (en) | 2022-02-11 |
Family
ID=80173534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121112840.9U Active CN215817534U (en) | 2021-05-24 | 2021-05-24 | Power distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215817534U (en) |
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2021
- 2021-05-24 CN CN202121112840.9U patent/CN215817534U/en active Active
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