CN220754022U - High-pressure tank, flow guiding device and energy storage device - Google Patents

Abstract

The application relates to a high-voltage box, a flow guiding device and an energy storage device, and relates to the field of energy storage, comprising a box body, a first electric connector and a second electric connector; the box body comprises a first side wall and a second side wall; the first electric connector is arranged on the first side wall, and the second electric connector is arranged on the second side wall; the first electric connector is in conductive connection with the second electric connector, and the first electric connector is used for being in conductive connection with a battery; the second electric connector is used for conducting connection with external equipment, and the second electric connector is connected with the external equipment in an inserted conducting mode. This application sets up at two lateral walls of box through first electric joint and second electric joint, and second electric joint and external equipment conductive connection have the effect of being convenient for high-voltage tank installation in the circuit.

Description

High-pressure tank, flow guiding device and energy storage device

Technical Field

The application relates to the field of energy storage systems, in particular to a high-pressure tank, a flow guiding device and an energy storage device.

Background

The energy storage power station can be used for balancing unbalance of supply and demand in different periods of the power grid, carrying out power scheduling and coping with peak-valley power loads. Typical energy storage power stations store electrical energy in batteries and, when needed, input the electrical energy into the power grid.

Electrochemical energy storage containers are widely used, and high voltage boxes are an important component of an energy storage system, and the high voltage boxes electrically control a plurality of battery clusters in the energy storage system and structurally influence the layout of the container of the whole energy storage system.

The existing electric main wiring of the high-voltage box adopts a scheme of front-end incoming line and front-end outgoing line, and the front-end cables of the high-voltage box can cross and interfere.

Disclosure of Invention

The application provides a high-voltage box, guiding device and energy memory, have and reduce the cable cross on the high-voltage box, be convenient for connect the circuit on the high-voltage box.

The application provides a high-voltage box, which comprises a box body, a first electric connector and a second electric connector; the box body comprises a first side wall and a second side wall; the first electric connector is arranged on the first side wall, and the second electric connector is arranged on the second side wall; the first electric connector is in conductive connection with the second electric connector, and the first electric connector is used for being in conductive connection with the battery; the second electric connector is used for conducting connection with the external equipment, and the second electric connector is connected with the external equipment in a plugging mode in a conducting mode.

In the above technical scheme, the first electric connector and the second electric connector are respectively located on two side walls, and when conducting connection between the first electric connector and the battery and conducting connection between the second electric connector and external equipment, the electric connectors on any side wall of the box body are fewer, so that the first electric connector and the second electric connector are connected into a circuit.

The second electric connector is connected with the external equipment in a plugging conductive manner, the box body is moved to enable the second electric connector to be connected with the external equipment in a plugging manner, so that the second electric connector is connected with the external equipment in a conductive manner, and the second electric connector is further convenient to be connected with the external equipment in a conductive manner.

The application also provides a guiding device, which comprises a conductive seat and a high-voltage box, wherein the conductive seat is connected with the second electric connector in a plugging conductive way.

In the technical scheme, the high-voltage box is moved to enable the second electric connector to be inserted into the conductive seat, and then the battery is electrically connected with the first electric connector, so that the conductive seat in the flow guiding device and the high-voltage box are conveniently connected.

The application also provides an energy storage device, which comprises a battery cluster and a high-voltage box, wherein the first electric connector is electrically connected with the battery cluster.

In the technical scheme, the first electric connector is connected with the battery cluster, so that the control of the high-voltage box on the battery cluster is realized.

When the battery cluster is connected with the first battery connector, the connectors on the first side wall are relatively fewer, so that the first electric connector is convenient to be electrically connected with the battery cluster.

Drawings

FIG. 1 is a schematic diagram of a structure in one embodiment;

FIG. 2 is a schematic diagram of a first electrical connector and a conductive base according to an embodiment;

FIG. 3 is a system architecture diagram of one embodiment;

FIG. 4 is a schematic diagram of a second electrical connector and a conductive base according to an embodiment;

fig. 5 is a schematic structural diagram of a second electrical connector and a conductive base according to an embodiment.

1. A case; 11. a first sidewall; 12. a second sidewall; 2. a first electrical connector; 3. a second electrical connector; 4. a conductive base; 5. a frame body; 6. a fuse; 7. and an isolating switch.

Detailed Description

The present application is further described in detail below by way of the accompanying drawings and examples. The features and advantages of the present application will become more apparent from the description.

The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other.

The embodiment of the application discloses a high-voltage box, which is used in an energy storage system, and the energy storage system further comprises a battery cluster and an energy storage converter. The battery cluster stores electric energy or discharges the electric energy outwards through the energy storage converter, and the high-voltage box is electrically connected between the battery cluster and the energy storage converter and is a high-voltage loop management module for connecting the battery cluster and the energy storage converter.

The high-voltage box has the functions of battery cluster voltage/current collection, contactor control and protection. The high-voltage box is used for providing the protection functions of overcurrent protection, short-circuit protection, overvoltage protection or undervoltage protection for the battery cluster, so that the whole energy storage system can be ensured to normally operate.

The high-voltage box is provided with a main control module, a positive relay, a negative relay, a pre-charging resistor, an isolation disconnecting link, a fuse and a shunt. The ac voltage in the high voltage tank is typically not less than 1000V and the dc voltage is typically not less than 1500V. The high-pressure tank is a common name in the field of energy storage, also called high-pressure control box.

Referring to fig. 1, the high voltage tank includes a tank body 1, a first electrical connector 2, and a second electrical connector 3. The case 1 includes a first side wall 11 and a second side wall 12; the first electrical connector 2 is arranged on the first side wall 11 and the second electrical connector 3 is arranged on the second side wall 12.

The first electrical connector 2 is electrically conductively connected to the second electrical connector 3, the first electrical connector 2 being adapted for electrically conductive connection to a battery.

The second electric connector 3 is used for conducting connection with external equipment, and the second electric connector 3 is connected with the external equipment in a plugging mode in a conducting mode.

Specifically, the case 1 is a housing for placing an electric device, and the case 1 is a rectangular case as an example; optionally, the box body 1 is a hexagonal, trapezoidal or special-shaped box.

The case 1 has four side walls, two of which are a first side wall 11 and a second side wall 12, respectively. The first electrical connector 2 is arranged on the first side wall 11 and the cable connected to the first electrical connector 2 is arranged on the first side wall 11. The second electrical connector 3 is disposed on the second side wall 12, and an external device connected to the second electrical connector 3 is disposed on the second side wall 12.

In this embodiment, the battery is electrically connected to the first electrical connector 2 by a cable. Illustratively, the end of the cable to which the first electrical connector 2 is connected is provided with a plug, the first electrical connector 2 comprising a socket for mating with the plug on the cable. The second electrical connector 3 is connected with an external device in a plugging conductive way.

The first electrical connector 2 and the second electrical connector 3 each include a set of connectors, the set of connectors includes a positive connector and a negative connector, the positive connector is electrically connected to the positive electrode, and the negative connector is electrically connected to the negative electrode.

The first electric connector 2 of the high-voltage box is in conductive connection with the battery, the second electric connector 3 is in conductive connection with the external equipment, and the high-voltage box serves as a relay between the battery and the external equipment. The electric energy of the battery is output outwards through the high-voltage box, and the external equipment charges the battery through the high-voltage box.

And the incoming line and the outgoing line relative to the high-voltage box in the prior art are all positioned on the same side wall of the high-voltage box. In this embodiment, the first electrical connector 2 and the second electrical connector 3 are respectively on two sidewalls of the case 1, and when the first electrical connector 2 is electrically connected with the battery and the second electrical connector 3 is electrically connected with an external device, the number of connectors on any sidewall of the case 1 is small, so that the first electrical connector 2 and the second electrical connector 3 are conveniently connected into a circuit, and the occurrence of the situation that the cables connected on the high-voltage case are crossed, interfered or connected in error is reduced.

The second electric connector 3 is connected with the external equipment in an inserted conductive manner, and the movable box body 1 enables the second electric connector 3 to be connected with the external equipment in an inserted manner, so that the second electric connector 3 is connected with the external equipment in an conductive manner. The second electric connector 3 is connected with external equipment in an inserted conductive manner, so that the second electric connector 3 is further convenient to install and connect with the external equipment; the connection of the main cable to the second electrical connector 3 can be omitted, reducing the effort of the installation of the high voltage tank.

Referring to fig. 1, as an alternative, a first side wall 11 is provided opposite a second side wall 12. Specifically, the first side wall 11 and the second side wall 12 are located at the front end and the rear end of the case 1.

The first electric connector 2 is connected to the first side wall 11, the second electric connector 3 is connected to the second side wall 12, the first side wall 11 is opposite to the second side wall 12, and the first electric connector 2 and the second electric connector 3 are located on two opposite sides of the box body 1.

The cable connected to the first electric connector 2 and the external equipment connected to the second electric connector 3 are respectively arranged at the opposite ends of the box body 1, the distance between the first electric connector 2 and the second electric connector 3 is long, the influence between the cable and the installation of the external equipment is small, and the installation is convenient.

The movable box body 1 is spliced with the external equipment through the second electric connector 3, the position where the external equipment is connected with the second electric connector 3 is a bare area, the cable and the external equipment are respectively positioned at two ends of the box body 1, the distance between the cable and the external equipment is large, and the installation of the cable is little influenced by the external equipment.

Further, a first direction is defined, which is the opposite direction of the first sidewall 11 and the second sidewall 12, and in the drawing, the first direction is denoted as X direction. When the high-pressure tanks are provided at intervals in the first direction, the two second side walls 12 of the two high-pressure tanks are one ends of the two high-pressure tanks that are close to each other. Two rows of high pressure tanks are illustrated as being arranged in a first direction, each row comprising twelve high pressure tanks arranged in an array along a surface perpendicular to the first direction.

In other embodiments, the structure of the case 1 includes an annular column, and the first sidewall 11 and the second sidewall 12 are part of the annular sidewalls, respectively.

In other embodiments, the first sidewall 11 and the second sidewall 12 are two adjacent sidewalls of the case 1.

Referring to fig. 2, as an alternative, the second electrical connector 3 is snap-in connected to an external device.

Specifically, the external device includes a conductive base 4, and the second electrical connector 3 is in snap contact with a portion of the conductive base 4 of the external device for connecting the second electrical connector 3. The second electrical connector 3 is illustratively in a snap-in connection with an external device.

The second electrical connector 3 or the part of the external device for the second electrical connector 3 can generate elastic deformation, and after the second electrical connector 3 and the part of the external device for the second electrical connector 3 relatively move to a set position along the first direction, the second electrical connector 3 and the conductive seat 4 can be mutually contacted and kept in a pressed state.

The second electric connector 3 is connected with the external equipment in a snap-in mode, and the stability of the connection and fixation of the second electric connector 3 and the external equipment can be kept.

Referring to fig. 1, as an alternative, the first electrical connector 2 comprises a terminal.

Terminals are multi-finger terminals, also known as terminals, for conductive or signal connection between a cable and an electrical device. The structure of the terminal includes, but is not limited to, a split hole, a double hole, a socket and a hook.

The terminals include, but are not limited to, rail guard terminals, spring terminals, and rail terminals. The present embodiment only illustrates that the first electrical connector 2 may be in the form of a terminal, and in other embodiments, the first electrical connector 2 may be in other forms capable of electrically conductive connection with a cable, such as a connector or a connector assembly.

Referring to fig. 2, as an alternative, the second electrical connector 3 comprises a contact.

Referring to fig. 4, specifically, the contact is a duckbill contact, the contact is a square block, a notch is provided at one end of the contact facing away from the box, and a portion of the conductive seat 4 of the external device for connecting with the contact is correspondingly provided with the duckbill contact along the first direction, so that the portion of the conductive seat 4 for connecting with the contact can extend into the notch of the contact, and contacts with and keeps pressed against the side wall of the notch of the contact, so that the contact can be connected with the external device in a plugging manner.

Referring to fig. 5, alternatively, the contact is a cylindrical contact, and the contact includes an annular spring, an annular plate, and a plurality of strips. The plurality of laths set up in annular plate one end, and a plurality of laths set up along annular plate circumference, and lath length sets up along first direction, lath and annular plate integrated into one piece. The annular springs are telescopic springs, at least two annular springs are arranged, and the two annular springs are sleeved outside the plurality of slats. The annular spring is illustrated in the drawing by a dashed box; only two slats are illustrated in the figure.

The conductive seat 4 of the external device is correspondingly arranged, specifically, the conductive seat 4 comprises a slat and a conductive column protruding out of the slat, and the conductive column is inserted into the annular inner side surrounded by a plurality of slats along the first direction and is contacted and pressed with the slats.

The contact forms also include, but are not limited to, blade contact, butt contact, wedge contact, plug contact, Z-contact finger slider, rolling slider.

The material of the contact includes at least one of copper, aluminum, chromium, silver, iron, tungsten, and molybdenum. Illustratively, the contacts are copper bars.

Referring to fig. 1, the present embodiment further discloses a flow guiding device, which includes a conductive base 4 and a high-voltage box, where the conductive base 4 is connected with the second electrical connector 3 in a plugging manner.

Specifically, the second electrical connector 3 is used for electrically connecting with an external device, and the external device includes a conductive base 4, and the conductive base 4 is electrically connected with the second electrical connector 3.

The conductive seat 4 is fixedly arranged, and the high-voltage box is movably connected with the conductive seat 4 in an inserting way. In other embodiments, the movable conductive base 4 may be inserted into the high-voltage box after the high-voltage box is placed and fixed.

In this embodiment, the high-voltage box and the battery cluster are separately placed, and the cable led out from the battery cluster is electrically connected with the corresponding high-voltage box. The plurality of high-voltage boxes are intensively placed, so that the plurality of high-voltage boxes are convenient to be connected with one conductive seat 4 in a conductive way.

The conductive seat 4 in the flow guiding device and the high-voltage box are connected quickly, so that the connection and installation of cables on the high-voltage box are reduced.

Referring to fig. 1, as an alternative, the high voltage tank is provided with a plurality of conductive sockets 4 electrically connected to a plurality of second electrical connectors 3.

Specifically, the conductive seat 4 includes a strip-shaped copper bar, and the conductive seat 4 is fixedly arranged. One conductive seat 4 is in conductive connection with a plurality of high-voltage boxes arranged vertically. In this embodiment, the guide is electrically connected to four high-voltage boxes arranged vertically. Optionally, the guide is electrically connected to two, three or five high voltage tanks arranged vertically.

Referring to fig. 1, as an alternative, a plurality of high pressure tanks are arranged in a stack. Specifically, the length of the conductive seat 4 is vertically arranged, and one conductive seat 4 is electrically connected with a plurality of vertically arranged high-voltage boxes.

The flow guiding device further comprises a frame body 5, a plurality of storage spaces are formed in the frame body 5, the storage spaces are arranged at intervals vertically, and the high-pressure boxes are located in the storage spaces in a one-to-one correspondence mode. The high-voltage box slides in the storage space along the first direction to a set position and is connected with the conductive seat 4 in a plugging manner.

In other embodiments, a plurality of high pressure tanks are stacked in a vertical direction, with top walls and bottom walls of vertically adjacent two high pressure tanks being in contact.

In other embodiments, the plurality of high pressure tanks are arranged in sequence in the horizontal direction. Or the arrangement mode of a plurality of high-pressure tanks is determined according to design requirements.

Referring to fig. 3, as an alternative, the conductive socket 4 includes a bus bar, a fuse 6, and an isolating switch 7.

Specifically, the busbar is a copper bar. The fuse 6 is an electric appliance that fuses a melt by heat generated by itself when a current exceeds a predetermined value, and opens a circuit. The isolating switch 7 is an electrical appliance for isolating an electrical circuit. The isolating switch 7 is provided with a fracture in a breaking state; in the off state, normal operating current and short-circuit current under fault are passed through the circuit.

Referring to fig. 2, the first electrical connectors 2 are plugged into a busbar, which is electrically conductive to the four first electrical connectors 2. The busbar is fixed on the frame body 5, and the box body 1 moves along a first direction to realize conductive connection of the first electric connector 2 and the busbar in a plugging manner, and the busbar is connected with the fuse 6 and the isolating switch 7 in series through a cable.

Referring to fig. 1, the embodiment further discloses an energy storage device, which comprises a battery cluster and a high-voltage box, wherein the battery cluster comprises a plurality of battery cells, and the first electric connector 2 is electrically connected with the battery cluster.

Specifically, the battery cluster comprises a plurality of battery packs, the high-voltage box is connected with the plurality of battery packs in series, the battery packs comprise a plurality of battery cells, and the plurality of battery cells in the battery packs are connected in series and parallel.

In other embodiments, the battery pack includes a plurality of battery packs, the battery packs include a plurality of battery modules connected in series and parallel, the battery modules include a plurality of battery cells, and the plurality of battery cells in the battery modules are connected in series and parallel.

In other embodiments, the battery cluster includes a plurality of battery cells connected in series-parallel.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "left", "right", etc. are based on the directions or positional relationships in the working state of the present application, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, unless explicitly specified and limited otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The present application has been described in connection with the preferred embodiments, but these embodiments are merely exemplary and serve only as illustrations. On the basis of this, many alternatives and improvements can be made to the present application, which fall within the scope of protection of the present application.

Claims (10)

1. The high-voltage box is characterized by comprising a box body, a first electric connector and a second electric connector; wherein,

the box body comprises a first side wall and a second side wall;

the first electric connector is arranged on the first side wall, and the second electric connector is arranged on the second side wall;

the first electric connector is in conductive connection with the second electric connector, and the first electric connector is used for being in conductive connection with a battery;

the second electric connector is used for conducting connection with external equipment, and the second electric connector is connected with the external equipment in an inserted conducting mode.

2. The high pressure tank of claim 1, wherein the first sidewall is disposed opposite the second sidewall.

3. The high voltage tank of claim 1, wherein the second electrical connector is snap-in connected to the external device.

4. The high voltage tank of claim 1, wherein the first electrical connector comprises a terminal.

5. The high voltage tank of claim 1, wherein the second electrical connector comprises a contact.

6. A flow guiding device comprising a conductive socket and a high voltage box according to any of claims 1-5, said conductive socket being in a plug-in conductive connection with said second electrical connector.

7. The flow guiding device as defined in claim 6, wherein a plurality of said high voltage boxes are provided, said conductive sockets being electrically connected to a plurality of said second electrical connectors.

8. The flow guide device of claim 7, wherein a plurality of the high pressure tanks are stacked.

9. The flow guiding device of claim 6, wherein the conductive mount comprises a bus bar, a fuse, and a disconnector that are conductively connected; wherein the busbar is in plug-in conductive connection with the second electrical connector.

10. An energy storage device comprising a battery cluster and the high voltage tank of any one of claims 1-5, the battery cluster being electrically connected to the first electrical connector.