Battery pack, battery cluster and energy storage container

Abstract

The utility model discloses a battery pack, a battery cluster and an energy storage container, the battery pack comprises a battery box and a battery unit, and the battery unit is arranged in the battery box; the battery box comprises a box body, a panel and a plug connector, one end of the box body is provided with an opening, and the panel covers the opening; the panel is provided with a groove, and the plug connector is arranged in the groove. According to the utility model, the groove is arranged on the panel, and the plug connector is arranged in the groove, so that the size of the longer plug connector protruding out of the electric box is reduced, and therefore, the space waste is reduced, the size of the energy storage container is reduced, the transportation difficulty and cost are reduced, and the energy storage container is more favorable for manufacturing and after sale.

Description

Technical Field

[0001] The utility model relates to the field of energy storage, and in particular to a battery pack, a battery cluster and an energy storage container. Background Art

[0002] With the continuous development of energy storage technology, lithium-ion batteries are widely used in energy storage systems due to their high energy density, long life and low self-discharge rate. In addition, carrying more electricity within the limited space specified by standard containers, that is, achieving higher energy density, has become a key goal pursued in the industry. At present, the market is gradually tending to adopt 5MWh container energy storage systems that can provide integer electricity.

[0003] However, users have increasing requirements for the integration of container energy storage systems, and the existing 5MWh container energy storage systems can only use non-standard containers or 1P104S long power boxes. Although these 5MWh container energy storage systems can provide the required power, the non-standard containers are different from standard containers in size, shape or load capacity, which increases the difficulty and cost of transportation. The 1P104S long power box is long in size and heavy in weight, which poses considerable challenges to manufacturing and after-sales. Utility Model Content

[0004] The embodiments of the present invention provide a battery pack, a battery cluster and an energy storage container to improve the integration of a container energy storage system, reduce the size of a 5MWh container, and reduce the difficulty and cost of transportation.

[0005] Specifically, the utility model provides a battery pack, including a battery box and a battery cell, wherein the battery cell is arranged inside the battery box; the battery box includes a box body, a panel and a connector, an opening is provided at one end of the box body, and the panel covers the opening; a groove is provided on the panel, and the connector is arranged in the groove.

[0006] Optionally, there are multiple connectors, and the multiple connectors are arranged at intervals in the groove; or, there are multiple grooves, and the grooves are arranged in a one-to-one correspondence with the connectors.

[0007] Optionally, the length of the battery box does not exceed 1150 mm, the width of the battery box does not exceed 800 mm, and the height of the battery box does not exceed 250 mm; the depth of the groove is 20 mm to 30 mm.

[0008] Optionally, the connector includes one or more of a high voltage connector, a low voltage connector and a communication interface structure.

[0009] The utility model also provides a battery cluster, comprising a mounting frame and a plurality of battery packs as described in any one of the above items, wherein the battery packs are arranged on the mounting frame.

[0010] Optionally, the plurality of battery packs are stacked vertically and arranged in an array along the front-to-back direction and the left-to-right direction; the opening directions of the plurality of grooves are all forward or backward.

[0011] Optionally, in the front-to-back direction, the distance between the connector of each battery pack and the inner side of the door of the battery compartment is 5 mm to 10 mm;

[0012] In the left-right direction, the distance between two adjacent battery packs does not exceed 110 mm.

[0013] The utility model also provides an energy storage container, comprising a cabinet and a battery cluster as described in any one of the above items, wherein the battery cluster is arranged in the cabinet.

[0014] Optionally, the energy storage container further includes a heat dissipation module;

[0015] The cabinet includes a temperature control cabin and a plurality of battery cabins, the plurality of battery cabins are arranged in sequence along the length direction of the cabinet, and each battery cabin is provided with a battery cluster; a cabin wall is provided between two adjacent battery cabins, and a cabin door is provided on both sides of each battery cabin; the heat dissipation module is laid on the top of the battery cabin;

[0016] The temperature control cabin is arranged at one end of the cabinet and located on one side of the battery cabin; the temperature control cabin includes an electrical cabin and a unit cabin, wherein a distribution box, a fire control box and a bus are arranged in the electrical cabin; and a unit host is arranged in the unit cabin.

[0017] Optionally, the energy storage container further includes bracket columns, and the bracket columns are embedded in the side walls of the cabinet body, thereby saving space in the left and right directions.

[0018] Optionally, the depth of the temperature control cabin does not exceed 500 mm, and the thickness of the heat dissipation module does not exceed 250 mm.

[0019] The beneficial effects of the utility model are:

[0020] In the battery pack, battery cluster and energy storage container provided by the utility model, since a groove is provided on the panel and the connector is provided in the groove, the size of the longer connector protruding from the electrical box is reduced, thereby reducing space waste and effectively improving space utilization. In other words, if the groove is not provided, the connector will protrude too much from the battery box, and will exceed the standard size in the X direction of the container. Therefore, the provision of the groove is conducive to improving the integration of the container energy storage system, reducing the size of the 5MWh container energy storage, and reducing the difficulty and cost of transportation.

[0021] Furthermore, the utility model can further improve the integration of the energy storage container by reasonably arranging the layout of the battery pack and the battery cluster in the cabinet of the energy storage container, limiting the size of the battery pack, the distance between the battery pack and other components, the size of the temperature control cabin and the heat dissipation module, and embedding the bracket columns in the side walls of the cabinet. Finally, the 1P52S short battery box is used to realize a standard 20-foot 5MWh integer power energy storage container, which reduces the difficulty and cost of transportation and is more conducive to manufacturing and after-sales. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a schematic structural diagram of a battery pack in the first embodiment of the utility model;

[0024] Figure 2 is a schematic partial diagram of a battery pack in the first embodiment of the utility model;

[0025] Figure 3 It is a schematic structural diagram of an energy storage container in the first embodiment of the utility model;

[0026] Figure 4 It is a schematic partial structural diagram of an energy storage container in the first embodiment of the utility model;

[0027] Figure 5 It is a schematic partial structural diagram of a battery cluster in the first embodiment of the utility model;

[0028] Figure 6 It is a schematic partial structural diagram of a battery cluster in the first embodiment of the utility model.

[0029] In the figure: 100, battery box, 110, box body, 120, panel, 121, groove, 130, connector, 200, cabinet, 210, battery compartment, 211, door, 212, electric box, 213, main control box, 220, temperature control compartment, 221, electric compartment, 222, unit compartment, 230, bracket column, 300, heat dissipation module, 410, unit host;

[0030] b. The distance between the connector and the inner wall of the hatch, c. The distance between two adjacent battery boxes, d. The length of the battery box, e. The depth of the temperature control cabin, f. The thickness of the heat dissipation module, h. The height of the battery box, w. The width of the battery box. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Figure 1 Schematic diagram of the battery pack in the first embodiment of the utility model. Figure 1 As shown, and refer to Figures 2 to 6The embodiment of the utility model provides a battery pack, including a battery box 100 and a battery unit, wherein the battery unit is arranged inside the battery box 100; the battery box 100 includes a box body 110, a panel 120 and a plug-in connector 130, wherein an opening is arranged at one end of the box body 110, and the panel 120 covers the opening. A groove 121 is arranged on the panel 120, and the plug-in connector 130 is arranged in the groove 121.

[0035] In the embodiment of the utility model, since the groove 121 is provided on the panel 120, and the connector 130 is provided in the groove 121, the size of the longer connector 130 protruding from the electric box 212 is reduced, thereby reducing space waste and effectively improving space utilization. In other words, if the groove 121 is not provided, the connector 130 will protrude too much from the battery box 100, and will exceed the standard size in the X direction of the container. Therefore, the provision of the groove 121 is conducive to improving the integration of the container energy storage system, reducing the size of the 5MWh container energy storage, and reducing the difficulty and cost of transportation.

[0036] In one embodiment of the present invention, the length of the battery box does not exceed 1150 mm, the width of the battery box does not exceed 800 mm, and the height of the battery box does not exceed 250 mm. The depth of the groove 121 is 20 mm to 30 mm. If the depth of the groove 121 is too small, the effect of improving space utilization is not obvious. If the depth of the groove 121 is too large, it may affect the battery cells in the battery box 100.

[0037] like Figure 2 As shown, in one embodiment of the present utility model, the number of the plug connectors 130 is multiple, and the multiple plug connectors 130 are arranged in intervals in the groove 121; or, the number of the plug connectors 130 is multiple, and the grooves 121 are arranged one by one with the plug connectors 130. Further, the plug connector 130 includes one or more of a high-voltage connector, a low-voltage connector, and a communication interface structure.

[0038] The utility model also provides a battery cluster, comprising a mounting frame and a battery pack as in any of the above embodiments, so as to have all the effects of the battery pack. The battery pack is arranged on the mounting frame.

[0039] In one embodiment of the utility model, the plurality of battery packs are stacked vertically and arranged in an array along the front-to-back direction and the left-to-right direction; the opening directions of the plurality of grooves 121 are all forward or backward. In the front-to-back direction, the distance between the connector 130 of each battery pack and the inner side of the door of the battery compartment is 5 mm to 10 mm. In the left-to-right direction, the distance between two adjacent battery packs does not exceed 110 mm.

[0040] like Figure 3 , Figure 4 As shown, the utility model also provides an energy storage container, comprising a cabinet 200 and a battery cluster as in any of the above embodiments, so as to have all the effects of a battery cluster. The battery cluster is arranged in the cabinet 200 .

[0041] It should be noted that the X direction is the width direction of the container, that is, the front-to-back direction; the Y direction is the length direction, that is, the left-to-right direction; and the Z direction is the height direction, that is, the up-down direction.

[0042] like Figure 5 , Figure 6 As shown, in one embodiment of the utility model, six battery compartments 210 are arranged in the cabinet 200, a bulkhead is arranged between two adjacent battery compartments, a door 211 is arranged on the front and rear sides of each battery compartment 210, each battery compartment 210 includes eight layers of electrical boxes 212 and one layer of main control box 213, two battery packs are arranged in each electrical box 212, one battery pack is arranged in each main control box 213, and a total of 108 battery packs are arranged in the six battery compartments 210. A heat dissipation module 300 is also arranged in the cabinet 200, and the heat dissipation module 300 is arranged on the top of the battery compartment 210.

[0043] A temperature control cabin 220 is arranged in the cabinet 200, and the temperature control cabin 220 is arranged at one end of the cabinet 200 and located on one side of the battery compartment 210. The temperature control cabin 220 includes an electrical compartment 221 and a unit compartment 222. The electrical compartment 221 is provided with a distribution box, a fire control box and a bus bar; the unit compartment 222 is provided with a unit host 410. The heat dissipation module 300, the temperature control cabin 220 and the battery compartment 210 are isolated from each other.

[0044] This arrangement allows the heat dissipation module 300, the temperature control cabin 220 and the battery cabin 210 to be reasonably distributed according to the internal space of the cabinet 200, rather than simply being distributed in a straight line. This can effectively utilize the internal space of the cabinet 200, improve the integration of the energy storage container, and reduce the size of the 5MWh container.

[0045] In one embodiment of the utility model, the energy storage container further includes a bracket column 230, which is embedded in the side wall of the cabinet 200, so that the energy storage container can save the thickness of one bracket column 230 in the Y direction, thereby improving space utilization.

[0046] Specifically, in the X direction, the length d of the battery box does not exceed 1150mm; the distance between the connector 130 and the inner wall of the hatch 211 is b, and satisfies: 5mm<b≤10mm. In the Y direction, the width w of the battery box does not exceed 800mm; the spacing c between two adjacent battery packs does not exceed 110mm; the depth e of the temperature control cabin 220 does not exceed 500mm. In the Z direction, the height h of the battery box does not exceed 250mm; the thickness f of the heat dissipation module 300 does not exceed 250mm.

[0047] This configuration can achieve an integer power of 5MWh in the 1P52S short box, which can reduce the difficulty and cost of transportation, improve system integration, and be more conducive to manufacturing and after-sales. At the same time, the 1P52S short box can also be used in grouped cabinets, which is more flexible than the 1P104S long box.

[0048] That is to say, the utility model reduces the space occupied by each battery pack by providing a groove on the panel of each battery pack and arranging the connector in the groove; and further improves the integration of the energy storage container by reasonably arranging the layout of the battery pack and the battery cluster in the cabinet of the energy storage container, limiting the size of the battery pack, the distance between the battery pack and other components, the size of the temperature control cabin and the heat dissipation module, and embedding the bracket columns in the side walls of the cabinet. Finally, a standard 20-foot 5MWh integer energy storage container is realized using a 1P52S short battery box, which reduces the difficulty and cost of transportation and is more conducive to manufacturing and after-sales.

[0049] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A battery pack, characterized in that: It comprises a battery box and a battery unit, wherein the battery unit is arranged inside the battery box; the battery box comprises a box body, a panel and a connector, an opening is arranged at one end of the box body, and the panel covers the opening; a groove is arranged on the panel, and the connector is arranged in the groove.

2. The battery pack according to claim 1, characterized in that: There are multiple connectors, and the multiple connectors are arranged at intervals in the groove; or there are multiple grooves, and the grooves are arranged in a one-to-one correspondence with the connectors.

3. The battery pack according to claim 1, characterized in that: The length of the battery box does not exceed 1150 mm, the width of the battery box does not exceed 800 mm, and the height of the battery box does not exceed 250 mm; The depth of the groove is 20 mm to 30 mm.

4. The battery pack according to claim 1, characterized in that: The connector includes one or more of a high voltage connector, a low voltage connector and a communication interface structure.

5. A battery cluster, characterized in that: It comprises a mounting frame and a plurality of battery packs according to any one of claims 1 to 4, wherein the battery packs are arranged on the mounting frame.

6. The battery cluster according to claim 5, characterized in that: The plurality of battery packs are stacked vertically and arranged in an array along the front-to-back direction and the left-to-right direction; the opening directions of the plurality of grooves are all forward or backward; In the front-to-back direction, the distance between the connector of each battery pack and the inner side of the door of the battery compartment is 5 mm to 10 mm; In the left-right direction, the distance between two adjacent battery packs does not exceed 110 mm.

7. An energy storage container, characterized in that: The invention comprises a cabinet and the battery cluster as claimed in claim 5 or 6, wherein the battery cluster is arranged in the cabinet.

8. The energy storage container according to claim 7, characterized in that: The energy storage container also includes a heat dissipation module; The cabinet includes a temperature control cabin and a plurality of battery cabins, the plurality of battery cabins are arranged in sequence along the length direction of the cabinet, and each battery cabin is provided with a battery cluster; a cabin wall is provided between two adjacent battery cabins, and a cabin door is provided on both the front and rear sides of each battery cabin; The heat dissipation module is laid on the top of the battery compartment; The temperature control cabin is arranged at one end of the cabinet and located on one side of the battery cabin; the temperature control cabin includes an electrical cabin and a unit cabin, wherein a distribution box, a fire control box and a bus are arranged in the electrical cabin; and a unit host is arranged in the unit cabin.

9. The energy storage container according to claim 7, characterized in that: The energy storage container further comprises a bracket column, and the bracket column is embedded in the side wall of the container body.

10. The energy storage container according to claim 8, characterized in that: The depth of the temperature control cabin does not exceed 500 mm, and the thickness of the heat dissipation module does not exceed 250 mm.

Images