CN207303710U - High voltage power distributing cabinet and system - Google Patents

Abstract

The utility model provides a high-voltage power distribution cabinet and a system, which relate to the technical field of power systems and include a vertical partition, which divides the cabinet body into a first space and a second space; the first space is provided with a first transverse partition , a plurality of first transverse partitions divide the first space into a plurality of first subspaces; a second transverse partition is arranged in the second space, and a plurality of second transverse partitions divide the second space into a plurality of second subspaces space; each first subspace is provided with at least two circuit boards, and each circuit board is provided with a Hall current sensor, a fuse and a DC relay; a plurality of second subspaces are provided in one second subspace There are output connectors, high-voltage output circuits and DCDC input power supply circuits, and at least two battery management units (Battery management units, referred to as BMUs) are installed in each of the remaining second subspaces to solve the problem of high-voltage power distribution cabinets for mobile energy storage charging vehicles. technical issues of lower applicability.

Description

High voltage distribution cabinet and system

technical field

The utility model relates to the technical field of power systems, in particular to a high-voltage power distribution cabinet and a system.

Background technique

With the popularization of electric vehicles, more and more high-voltage distribution boxes are used. The structure of high-voltage distribution boxes varies according to different models, but any structure of high-voltage distribution boxes must meet its own electrical drawings. Design requirements.

High-voltage power distribution cabinets refer to electrical products that are used for on-off, control or protection in power system power generation, transmission, distribution, power conversion and consumption, with a voltage level of 3.6kV to 550kV, mainly including high-voltage circuit breakers, Disconnectors and grounding switches, high-voltage load switches, high-voltage automatic reclosers and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof power distribution devices, and high-voltage switchgears. The high-voltage switch manufacturing industry is an important part of the power transmission and transformation equipment manufacturing industry.

At present, the applicability of the high-voltage power distribution cabinet to the mobile energy storage charging vehicle is low. Based on the current internal structure of the high-voltage power distribution cabinet, it cannot be well applied to the charging process of the mobile energy storage charging vehicle.

Utility model content

In view of this, the purpose of this utility model is to provide a high-voltage power distribution cabinet and system to solve the low applicability of the high-voltage power distribution cabinet in the prior art to mobile energy storage and charging vehicles. Based on the current high-voltage power distribution cabinet The internal structure cannot be better applied to the technical problems of the charging process of the mobile energy storage charging vehicle.

In the first aspect, the embodiment of the utility model provides a high-voltage power distribution cabinet, including: a cabinet body, a vertical partition arranged in the cabinet, and the vertical partition divides the cabinet body into a first space and a second space;

A plurality of first transverse partitions are arranged in the first space, and the plurality of first transverse partitions divide the first space into a plurality of first subspaces;

A plurality of second transverse partitions are arranged in the second space, and the plurality of second transverse partitions divide the second space into a plurality of second subspaces;

Each of the first subspaces is provided with at least two circuit boards, and each of the circuit boards is respectively provided with a Hall current sensor, a fuse and a DC relay;

One of the plurality of second subspaces is provided with an output connector, two high-voltage output circuits, and a DCDC input power supply circuit, and each of the remaining second subspaces is respectively provided with At least two battery management units (Battery management unit, referred to as BMU);

An input connector is arranged on the first side wall of the cabinet, and an output connector is arranged on the second side wall of the cabinet.

With reference to the first aspect, the embodiment of the present utility model provides a first possible implementation manner of the first aspect, wherein the input connector is connected to the circuit board.

With reference to the first aspect, the embodiment of the present utility model provides a second possible implementation manner of the first aspect, wherein the number of the first subspaces is seven.

With reference to the first aspect, the embodiment of the present utility model provides a third possible implementation manner of the first aspect, wherein the number of the second subspaces is eight.

In combination with the first aspect, the embodiment of the present utility model provides a fourth possible implementation manner of the first aspect, wherein the longitudinal position of the one second subspace is lower than that of each of the other second subspaces. subspace.

In combination with the first aspect, the embodiment of the present utility model provides a fifth possible implementation manner of the first aspect, wherein a switch device is provided on the third side wall of the cabinet.

With reference to the first aspect, the embodiment of the present utility model provides a sixth possible implementation manner of the first aspect, wherein the switch device is provided with a ventilation device.

With reference to the first aspect, the embodiment of the present utility model provides a seventh possible implementation manner of the first aspect, wherein a heat dissipation device is provided on the fourth side wall of the cabinet.

In the second aspect, the embodiment of the utility model also provides a high-voltage power distribution system, including: a terminal and a high-voltage power distribution cabinet as in the first aspect;

The terminal is connected to the high-voltage power distribution cabinet through wireless communication.

In combination with the second aspect, the embodiment of the present utility model provides a first possible implementation manner of the second aspect, wherein a communication device is arranged in the high-voltage power distribution cabinet;

The communication device sends the current value detected by the Hall current sensor to the terminal.

The technical solution provided by the embodiment of the utility model brings the following beneficial effects: In the high-voltage power distribution cabinet and the system provided by the embodiment of the utility model, the high-voltage power distribution cabinet includes a cabinet body and a vertical partition arranged in the cabinet body. The partition divides the cabinet into a first space and a second space, wherein a plurality of first transverse partitions are arranged in the first space, and the plurality of first transverse partitions divide the first space into a plurality of first subspaces , and a plurality of second transverse partitions are arranged in the second space, and the plurality of second transverse partitions divide the first space into a plurality of second subspaces. In addition, each first subspace is provided with at least two A circuit board, each circuit board is provided with a Hall current sensor, a fuse and a DC relay, and in addition, one of the second subspaces is provided with a DCDC input power supply circuit, an output connector and Two high-voltage output circuits, and at least two BMUs are respectively arranged in each of the remaining second subspaces. In addition, an input connector is arranged on the first side wall of the cabinet, and an input connector is arranged on the second side wall of the cabinet. The output connector is divided into multiple spaces by partitions in the high-voltage power distribution cabinet, and multiple independent charging systems are formed through Hall current sensors, fuses, DC relays and other equipment installed in different spaces. The structural distribution is reasonable, so it is possible to charge multiple mobile energy storage charging vehicles at the same time more reasonably through a high-voltage power distribution cabinet, and can not affect each other, making the high-voltage power distribution cabinet more suitable for charging mobile energy storage charging vehicles , so as to solve the low applicability of the high-voltage power distribution cabinet in the prior art to the mobile energy storage charging car. Based on the current internal structure of the high-voltage power distribution cabinet, it cannot be better applied to the charging of the mobile energy storage charging car Technical issues of the process.

Other features and advantages of the present invention will be set forth in the following description, and partly become apparent from the description, or can be learned by implementing the present invention. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the specification, claims and accompanying drawings.

In order to make the above-mentioned purpose, features and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below, together with the accompanying drawings, and are described in detail as follows.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is a schematic structural diagram of a high-voltage power distribution cabinet provided by an embodiment of the present invention;

Fig. 2 is another structural schematic diagram of the high-voltage power distribution cabinet provided by the embodiment of the utility model;

Fig. 3 is a schematic structural diagram of a high-voltage power distribution system provided by an embodiment of the present invention;

Fig. 4 is another structural schematic diagram of the high-voltage power distribution system in the embodiment of the present invention.

Icons: 1-high voltage power distribution cabinet; 11-cabinet body; 12-vertical partition; 13-first space; 14-second space; 15-first transverse partition; 16-first subspace; 17-second 18-second subspace; 19-circuit board; 111-first side wall; 112-second side wall; 113-third side wall; 1131-switching device; 1132-ventilation device; 114- The fourth side wall; 1141-radiating device; 181-output connector; 182-high voltage output circuit; 183-DCDC input power supply circuit; 184-BMU; 191-Hall current sensor; 192-fuse; 193-DC relay; 194-input connector; 2-high voltage power distribution system; 21-terminal; 22-communication device.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model. rather than all examples. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

At present, the applicability of the high-voltage power distribution cabinet to the mobile energy storage charging car is low. Based on the current internal structure of the high-voltage power distribution cabinet, it cannot be better applied to the charging process of the mobile energy storage charging car. Based on this, the utility model implements The example provides a high-voltage power distribution cabinet and system, which can solve the problem that the high-voltage power distribution cabinet in the prior art has low applicability to mobile energy storage charging vehicles. Based on the current internal structure of the high-voltage power distribution cabinet, it cannot be better Technical issues applicable to the charging process of mobile energy storage charging vehicles.

In order to facilitate the understanding of this embodiment, a high-voltage power distribution cabinet and system disclosed in the embodiment of the present utility model are firstly introduced in detail.

Embodiment one:

A high-voltage power distribution cabinet provided by the embodiment of the utility model, as shown in Figure 1, the high-voltage power distribution cabinet 1 may include: a cabinet body 11, a vertical partition 12 arranged in the cabinet body 11, and the vertical partition 12 can be The cabinet body 11 is divided into a first space 13 and a second space 14 .

As a preferred solution, the space volume of the first space 13 is larger than that of the second space 14, for example, the structure of the high-voltage distribution cabinet 1 is divided into two parts with narrow left and wide right when viewed from the front.

Further, a plurality of first transverse partitions 15 may be arranged in the first space 13, and the plurality of first transverse partitions 15 may divide the first space 13 into a plurality of first subspaces 16. As a preferred solution, The number of first subspaces 16 may be seven.

As a preferred implementation of this embodiment, at least two circuit boards 19 may be provided in each first subspace 16, and each circuit board 19 may be provided with a Hall current sensor 191, a fuse 192 and a DC relay 193 respectively. . As a preferred solution, two groups of circuit boards 19 can be arranged axially symmetrically.

As another implementation manner of this embodiment, an input connector 194 may be disposed on the first side wall 111 of the cabinet body 11 , and the input connector 194 may be connectable to the circuit board 19 .

In practical applications, the part of the first space 13 on the right side of the high-voltage power distribution cabinet 1 can be divided into seven layers in total, and each layer corresponds to two electrical subsystems, that is, two circuit boards 19. Hall current sensors 191, fuses 192, DC The symmetrical arrangement of the relays 193 is convenient for maintenance personnel to check and maintain. Moreover, the input connector 194 is installed on the right side, specifically, the input connector 194 is disposed on the side of the first space 13 that coincides with the cabinet body 11 .

As a preferred solution, one end of the fuse 192 is connected to the Hall current sensor 191 , and the other end is connected to the DC relay 193 . Wherein, the Hall current sensor 191 is used for measuring and protecting the circuit. Fuse 192 refers to an electrical appliance that fuses the fuse with the heat generated by itself and disconnects the circuit when the current exceeds the specified value. The melt melts to disconnect the circuit, and the fuse 192 is a current protector made by using this principle.

In addition, a plurality of second transverse partitions 17 may be arranged in the second space 14 , and the plurality of second transverse partitions 17 may divide the second space 14 into a plurality of second subspaces 18 .

Among the multiple second subspaces 18, one second subspace 18 may be provided with an output connector 181, two high-voltage output circuits 182 and one DCDC input power supply circuit 183, and each of the remaining second subspaces 18 At least two BMUs 184 may be respectively provided.

Further, an output connector 181 may be disposed on the second side wall 112 of the cabinet body 11 . As a preferred implementation of this embodiment, the output connector 181 is disposed on a side of the second space 14 that coincides with the cabinet body 11 .

It should be noted that the vertical position of the above-mentioned second subspace 18 is lower than that of each of the remaining second subspaces 18. The second subspace 18 of the first floor of the connector 181 .

As another implementation manner of this embodiment, the number of second subspaces 18 is eight. Among them, two BMUs 184 of battery management system (BMS) are arranged in the second subspace 18 of each floor of the seventh floor, and output connectors 181, two high-voltage An output circuit 182 and a DCDC input power supply circuit 183 .

Wherein, DCDC represents the conversion of a high-voltage (low-voltage) DC power supply into a low-voltage (high-voltage) DC power supply, wherein DC stands for Direct Current (DC for short).

In this embodiment, inside the high-voltage power distribution cabinet 1, relative to the left part of the first space 13, that is, the second space 14, there may be a total of eight floors of second subspaces 18, and the upper seven floors of the second subspace 18 The main control part of the BMS, that is, BMU184, is installed on each layer, and two are installed on each layer. The second subspace 18 on the last layer is the output part of the electrical schematic diagram, including two high-voltage outputs and one DCDC input power supply, and the output connector 181 is installed on the left side.

Wherein, the BMU 184 can be installed in the second subspace 18 on the seventh floor above in the form of a battery monitor. BMU184 has the function of detecting the voltage and temperature parameters of the single battery and providing an alarm function. The BMU184 can be responsible for monitoring the parameters of the single battery in series, and can also superimpose the detection data through the Controller Area Network (CAN) bus, and finally upload it to the Upper battery management system. BMU184 is a management unit that manages a single battery in a string of batteries. Generally, a BMU184 manages a battery pack consisting of 15 to 16 batteries, while a BMS manages multiple series-parallel battery packs. The BMS obtains each Various parameters of a battery, such as voltage, temperature, etc.

As shown in Figure 2, a switch device 1131 may be provided on the third side wall 113 of the cabinet body 11, and a switch device 1131 may be provided on the cabinet body 11 overlapping with the first space 13, and a ventilation device 1131 may be provided on the switch device 1131. Device 1132.

As shown in FIG. 2 , a heat dissipation device 1141 may be provided on the fourth side wall 114 of the cabinet body 11 , specifically, a heat dissipation device 1141 is provided on the cabinet body 11 overlapping with the first space 13 . The number of heat sinks 1141 is seven, that is, heat sinks 1141 are provided at the outer housings corresponding to the first subspaces 16 on each floor.

As a preferred implementation of this embodiment, the switch device 1131 is a switch door, therefore, the right side front is designed as a door, and a louver can be installed for ventilation under the door, and seven fans can be installed on the opposite side of the door.

Therefore, the structure of the high-voltage power distribution cabinet 1 can simultaneously meet the design requirements and installation size requirements of the high-voltage power distribution cabinet 1 in the mobile energy storage charging vehicle product, so that the high-voltage power distribution cabinet 1 has both functions and appearance. Can meet the demand.

As far as the existing technology is concerned, the applicability of the high-voltage power distribution cabinet to the mobile energy storage charging vehicle is low. Based on the current internal structure of the high-voltage power distribution cabinet, it cannot be better applied to the charging process of the mobile energy storage charging vehicle.

By providing the high-voltage power distribution cabinet 1, Hall current sensors 191, fuses 192, and DC relays 193 and other equipment are installed in different spaces in the cabinet body 11, thereby forming multiple independent charging systems with reasonable internal structure distribution. Therefore, it is realized that a plurality of mobile energy storage charging vehicles can be charged more reasonably through one high-voltage power distribution cabinet 1 at the same time, and can not affect each other, so that the high-voltage power distribution cabinet 1 is more suitable for charging mobile energy storage charging vehicles, thereby It solves the low applicability of the high-voltage power distribution cabinet in the prior art to the mobile energy storage charging vehicle. Based on the current internal structure of the high-voltage power distribution cabinet, it cannot be better applied to the charging process of the mobile energy storage charging vehicle. technical problem.

Embodiment two:

A high-voltage power distribution system provided by an embodiment of the present invention, as shown in FIG. 3 , the high-voltage power distribution system 2 may include: a terminal 21 and the high-voltage power distribution cabinet provided in the first embodiment above. The terminal 21 and the high-voltage power distribution cabinet 1 can be connected through wireless communication.

As shown in FIG. 4 , a communication device 22 may be installed in the high voltage power distribution cabinet 1 . The communication device 22 can send the current value detected by the Hall current sensor 191 to the terminal 21 .

In all examples shown and described herein, any specific values should be construed as merely exemplary and not limiting, and thus other examples of the exemplary embodiments may have different values.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

The high-voltage power distribution system provided by the embodiment of the utility model has the same technical features as the high-voltage power distribution cabinet provided by the above-mentioned embodiment, so it can also solve the same technical problems and achieve the same technical effect.

Specifically, the communication device 22 may also be in the form of a processor, and the processor may be an integrated circuit chip with signal processing capability. During implementation, the above-mentioned functions may be completed by hardware integrated logic circuits in the processor or instructions in the form of software. Above-mentioned processor can be general-purpose processor, comprises central processing unit (Central Processing Unit, be called for short CPU), network processor (Network Processor, be called for short NP) etc.; Can also be digital signal processor (Digital Signal Processing, be called for short DSP), Application Specific Integrated Circuit (ASIC for short), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Various functions disclosed in the embodiments of the present utility model can be realized or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The functions disclosed in conjunction with the embodiments of the present utility model may be directly implemented by a hardware decoding processor, or executed by hardware in the decoding processor.

In addition, in the description of the embodiments of the present utility model, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model.

In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

It should be noted that at last: the above-described embodiment is only the specific implementation manner of the present utility model, in order to illustrate the technical scheme of the present utility model, rather than it is limited, and the protection scope of the present utility model is not limited thereto, Although the utility model has been described in detail with reference to the aforementioned embodiments, those of ordinary skill in the art should understand that any person familiar with the technical field can still describe the aforementioned embodiments within the technical scope disclosed in the utility model. Modifications or changes can be easily imagined in the technical solutions, or equivalent replacement of some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model. All should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (10)

1. A kind of 1. high voltage power distributing cabinet, it is characterised in that including：Cabinet, the vertical clapboard being arranged in the cabinet, the vertical clapboard The cabinet is separated into the first space and second space；

   The first diaphragm plate of polylith is provided with first space, first space is separated into by the first diaphragm plate described in polylith Multiple first subspaces；

   The second diaphragm plate of polylith is provided with the second space, the second space is separated into by the second diaphragm plate described in polylith Multiple second subspaces；

   At least two circuit boards are provided with each first subspace, Hall electricity is respectively arranged with each circuit board Flow sensor, fuse and DC relay；

   Out connector, two-way High voltage output electricity are provided with second subspace in multiple second subspaces Road and all the way DCDC input power supply circuit, and at least two cell tubes are respectively arranged with remaining each described second subspace Manage unit (Battery management unit, abbreviation BMU)；

   Input connector is provided with the first side wall of the cabinet, output connection is provided with the second sidewall of the cabinet Device.
2. 2. high voltage power distributing cabinet according to claim 1, it is characterised in that the input connector connects with the circuit board Connect.
3. 3. high voltage power distributing cabinet according to claim 1, it is characterised in that the number of first subspace is seven.
4. 4. high voltage power distributing cabinet according to claim 1, it is characterised in that the number of second subspace is eight.
5. 5. high voltage power distributing cabinet according to claim 1, it is characterised in that longitudinal position of one second subspace Set low in remaining described each described second subspace.
6. 6. high voltage power distributing cabinet according to claim 1, it is characterised in that be provided with switch on the 3rd side wall of the cabinet Device.
7. 7. high voltage power distributing cabinet according to claim 6, it is characterised in that be provided with ventilation unit on the switching device.
8. 8. high voltage power distributing cabinet according to claim 1, it is characterised in that be provided with heat dissipation on the 4th side wall of the cabinet Device.
9. A kind of 9. high tension distribution system, it is characterised in that including：Terminal and such as claim 1-8 any one of them high pressures Power distribution cabinet；

   Connected between the terminal and the high voltage power distributing cabinet by wireless communication.
10. 10. high tension distribution system according to claim 9, it is characterised in that communication is provided with the high voltage power distributing cabinet Device；

    The current value that the communication device is detected to the terminal transmission Hall current sensor.