Outdoor high voltage energy storage device

Abstract

The utility model discloses an outdoor high-voltage energy storage device, which includes a plurality of outdoor single-phase energy storage boxes. Each outdoor single-phase energy storage box is supported by an outdoor insulator installed on the ground, and the box contains two energy storage converter units, a set of auxiliary equipment and a set of insulating components. The outdoor high-voltage energy storage device of the utility model can reduce the volume of the box, reduce the floor space and cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical automation equipment, and specifically relates to an outdoor high-voltage energy storage device. Background Art

[0002] The voltage of high-voltage energy storage equipment on the market is generally 6-35KV. High-voltage cascade energy storage equipment has been widely recognized. It generally places the series-connected single-phase energy storage units directly in a larger container through insulation support. Due to the high voltage of the energy storage equipment, it is directly required that the insulation distance between all single-phase energy storage units and the container must be large, which leads to a great waste of container size, floor space and cost. Utility Model Content

[0003] The utility model aims to further optimize the size problem in related products. To this end, the embodiment of the utility model proposes an outdoor high-voltage energy storage device, which can reduce the size and floor space of the box and reduce product costs.

[0004] The outdoor high-voltage energy storage device of the embodiment of the utility model includes multiple outdoor single-phase energy storage boxes, each of which has a single-phase energy storage unit. The single-phase energy storage units in the multiple outdoor single-phase energy storage boxes are connected in series to form an outdoor high-voltage energy storage device.

[0005] The outdoor high-voltage energy storage device of the embodiment of the utility model has only two single-phase energy storage units connected in series in a single outdoor single-phase energy storage box. Therefore, the voltage of the two energy storage units in the box after being connected in series is greatly reduced, so that the single-phase energy storage unit does not need to have a large insulation distance from the box and peripheral equipment, thereby reducing the size of each outdoor single-phase energy storage box, the floor space occupied, and the manufacturing cost of the box.

[0006] In some embodiments, the box body of each outdoor single-phase energy storage box is supported by outdoor insulators installed on the ground and is insulated from adjacent boxes.

[0007] In some embodiments, the outdoor single-phase energy storage box includes a first single-phase energy storage unit, a second single-phase energy storage unit, a set of auxiliary equipment and a set of insulating components.

[0008] In some embodiments, the first single-phase energy storage unit and the second single-phase energy storage unit both include an energy storage housing, an energy storage component and a current conversion component, and the energy storage component and the current conversion component are connected and both are installed in the housing of the single-phase energy storage unit.

[0009] In some embodiments, the first single-phase energy storage unit is installed in an outdoor single-phase energy storage box using an insulating support and maintains an insulating distance from other components in the box.

[0010] In some embodiments, the second single-phase energy storage unit and other components are directly installed on the bottom surface of the outdoor single-phase energy storage box without being insulated from the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of an outdoor single-phase energy storage box of an outdoor high-voltage energy storage device according to an embodiment of the utility model.

[0012] Figure 2 It is a structural schematic diagram of a single-phase energy storage unit according to an embodiment of the utility model.

[0013] Reference numerals:

[0014] A first single-phase energy storage unit 100, an outdoor single-phase energy storage box 200, an energy storage auxiliary device 300,

[0015] Energy storage shell 1, energy storage component 2, current conversion component 3, second single-phase energy storage unit 4, insulating support 5, outdoor insulator 6. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0017] like Figure 1 and Figure 2 As shown, the outdoor high-voltage energy storage device of the embodiment of the utility model includes multiple outdoor single-phase energy storage boxes 200, each of which has two single-phase energy storage units. The single-phase energy storage units in the multiple outdoor single-phase energy storage boxes are connected in series to form an outdoor high-voltage energy storage device.

[0018] It should be noted that the outdoor high-voltage energy storage device also includes an outdoor single-phase energy storage box 200 , in which two single-phase energy storage units and an energy storage auxiliary device 300 are installed.

[0019] The single-phase energy storage unit includes a first energy storage unit 100, a second energy storage unit 4, an energy storage auxiliary device 300 and an insulation unit 5. The single-phase energy storage units 100 and 4 in multiple outdoor single-phase energy storage boxes 200 are connected in series to form a high-voltage energy storage device. The first energy storage unit 100 in the box is insulated from the box body and surrounding components, and is supported at the bottom of the box body by an insulating support 5.

[0020] In the outdoor high-voltage energy storage device of the embodiment of the utility model, the single-phase energy storage units 100 in all outdoor single-phase energy storage boxes are electrically connected in series with each other, and finally form a high voltage directly connected to the high-voltage power grid. Compared with the prior art in which a large number of single-phase energy storage units are installed in a large container, in such a box structure containing only two single-phase energy storage units, only the first single-phase energy storage unit 100 needs to maintain a smaller insulation distance with the outdoor single-phase energy storage box 200 and the surrounding components, which can save the original larger insulation distance of the product on the market, thereby reducing the size and cost of the outdoor single-phase energy storage box 200, improving the space utilization rate inside the outdoor single-phase energy storage box 200, and reducing the manufacturing cost of the outdoor single-phase energy storage box 200, which is also conducive to the local standardization and mass production of the energy storage device. At the same time, the smaller-sized outdoor single-phase energy storage boxes 200 designed and manufactured one by one are also conducive to preventing the expansion of the operation accidents of the energy storage device, and are also convenient for the lifting, transportation, installation and maintenance of the device. And when a certain energy storage unit is damaged, it is only necessary to replace the damaged energy storage unit, which is also convenient for later maintenance.

[0021] In some embodiments, the box body of each outdoor single-phase energy storage box 200 is supported by an outdoor insulator 6 installed on the ground and is insulated from adjacent boxes.

[0022] In some embodiments, the first single-phase energy storage unit 100 and the second single-phase energy storage unit 4 include an energy storage housing 1 , an energy storage component 2 and a current conversion component 3 , and the energy storage component 2 and the current conversion component 3 are connected and both are installed in the energy storage housing 1 .

[0023] Specifically, Figure 1 and Figure 2 As shown, the energy storage component 2 is connected to the AC component 3, and the energy storage component 2 and the AC component 3 are installed in the energy storage housing 1. For example, the energy storage component 2 is an energy storage battery cluster or an energy storage capacitor cluster.

[0024] Specifically, Figure 1 As shown, the first single-phase energy storage unit 100 is installed on the insulating support 5 and is insulated from the surrounding components and the box body.

[0025] In some embodiments, in addition to the above-mentioned first single-phase energy storage unit 100, other components in the box, including the second single-phase energy storage unit 4 and auxiliary equipment 300, are directly installed on the metal bottom surface of the outdoor single-phase energy storage box. In other words, the second single-phase energy storage unit 4 does not have to maintain an insulation distance from the box body.

[0026] Specifically, Figure 1 As shown, the outdoor single-phase energy storage box 200 is supported by outdoor insulators 6, and each outdoor insulator 6 is fixed to the ground.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An outdoor high-voltage energy storage device, characterized in that: It includes a plurality of outdoor single-phase energy storage boxes, each of which has a single-phase energy storage unit. The single-phase energy storage units in the plurality of outdoor single-phase energy storage boxes are connected in series to form an outdoor high-voltage energy storage device. The outdoor single-phase energy storage box includes a first single-phase energy storage unit, a second single-phase energy storage unit, a set of auxiliary equipment and a set of insulating components; The first single-phase energy storage unit and the second single-phase energy storage unit both include an energy storage housing, an energy storage component and a current conversion component, wherein the energy storage component and the current conversion component are connected and both are installed in the housing of the single-phase energy storage unit; The first single-phase energy storage unit is installed in an outdoor single-phase energy storage box with an insulating support and maintains an insulation distance from other components in the box; The second single-phase energy storage unit and other components are directly installed on the bottom surface of the outdoor single-phase energy storage box without the need to be insulated from the box.

2. The outdoor high-voltage energy storage device according to claim 1, characterized in that: The body of each outdoor single-phase energy storage box is supported by outdoor insulators installed on the ground and is insulated from adjacent boxes.

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