Energy storage container

Abstract

The utility model discloses an energy storage container, a wiring assembly comprises a plurality of limiting parts which are arranged along a first direction and extend along a second direction perpendicular to the first direction, and each limiting part is fixedly connected with a container body and is positioned on one side, deviating from a battery cluster, of each power converter; the electric connection cable group comprises cable units which are equal to the electric power converters in number and are in one-to-one correspondence with the electric power converters, each cable unit is used for connecting one electric power converter and the convergence equipment, and each cable unit comprises a first section extending in the first direction and a second section bent from the first section and used for connecting wiring terminals of the electric power converters; each first section is used for connecting a convergence device and is arranged and supported on at least one limiting piece along a second direction; wherein the length of the second section of the cable unit corresponding to the power converter, which is farther away from the convergence equipment, in each power converter is longer on a projection plane perpendicular to the first direction. The cable units are arranged in order, the heat dissipation efficiency is high, and a large current is allowed to pass through.

Description

Technical Field

[0001] This utility model relates to the field of containers, specifically to an energy storage container. Background Technology

[0002] Currently, energy storage battery devices in energy storage containers can not only store excess power generated by the power generation system, but also supply power to the grid when the power generation system generates less power. In existing technologies, energy storage battery devices need to be used in conjunction with power conversion devices (such as DC-DC converters), combiner devices, and distribution devices. The energy storage battery device includes multiple battery clusters arranged horizontally in a first direction, and each battery cluster includes multiple battery packs arranged vertically. The power conversion device is connected to each battery pack via control lines and power lines and is used to control the on / off state of each battery pack. The power conversion device includes multiple power converters, one-to-one with the number of battery clusters. Each power converter controls one battery cluster. The power converters are usually placed above or below the corresponding battery cluster and have terminals at their front ends. The terminals of each power converter are electrically connected to the combiner device located on one side of the container in the first direction via cables, which are located at the bottom or top of the energy storage container. In practical applications, it has been found that the cables between the power converters and the combiner device have high temperatures, posing a safety hazard during long-term operation, and the output or input current of the energy storage container cannot be too large. Utility Model Content

[0003] The purpose of this invention is to overcome the aforementioned defects or problems in the prior art and to provide an energy storage container in which the cable units for connecting the power converter and the combiner are neatly arranged, have high heat dissipation efficiency, and allow a large current to pass through.

[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Technical Solution 1 and its related embodiments provide an energy storage container, including a container body, energy storage equipment, power conversion equipment, combiner equipment, and wiring components. The energy storage equipment is placed inside the container and includes several battery clusters arranged horizontally along a first direction. The power conversion equipment includes power converters that are equal in number and correspond one-to-one with the number of battery clusters. The power converters are located below or above the corresponding battery clusters, and one end of each power converter along a second direction is provided with a terminal. The combiner equipment is placed inside the container and located on a first side of the energy storage equipment along the first direction. The wiring components include groups of electrical connection cables for connecting each power converter and the combiner equipment. The wiring components also include several wires arranged along the first direction and vertically... The limiting members extend horizontally in a second direction from the first direction. Each limiting member is fixed to the housing and located on the side of each power converter away from the battery cluster. The electrical connection cable group includes cable units that are equal in number and correspond one-to-one with the power converters. Each cable unit is used to connect a power converter and a combiner device. Each cable unit includes a first segment extending along the first direction and a second segment bent from the first segment and used to connect the terminals of the power converter. Each first segment is used to connect the combiner device and is laid along the second direction and supported on at least one limiting member. The second segment of the cable unit corresponding to the power converter that is further away from the combiner device has a longer projection length on the projection plane perpendicular to the first direction.

[0006] Based on technical solution one, there is also technical solution two. In technical solution two and its related embodiments, each first segment is also limited and cooperated with the corresponding limiting member along the second direction and the vertical direction.

[0007] Based on technical solution two, there is also technical solution three. In technical solution three and its related embodiments, the power converter is located below the corresponding battery cluster; it also includes a liquid cooling pipeline system for dissipating heat from the energy storage device and placed inside the box; the liquid cooling pipeline system includes a supply pipe and a return pipe placed at the bottom of the box, and each cable unit is also supported on the supply pipe and the return pipe.

[0008] Based on technical solution three, there is also technical solution four. In technical solution four and its related embodiments, the liquid cooling pipeline system includes a coolant supply device placed on the first side of the energy storage device along the first direction. The supply pipe and the return pipe are both connected to the coolant supply device. The supply pipe has a first supply section extending along the second direction, and the return pipe has a first return section extending along the second direction. The first supply section and the first return section are arranged along the first direction and are suitable for supporting the first section of each cable unit.

[0009] Based on technical solution four, there is also technical solution five. In technical solution five and its related embodiments, the liquid supply pipe is provided with a second liquid supply section extending along the first direction and communicating with the first liquid supply section, and the liquid return pipe is provided with a second liquid return section extending along the first direction and communicating with the first liquid return section; the second liquid supply section and the second liquid return section are arranged along the second direction and are suitable for supporting the second section of each cable unit.

[0010] Based on technical solution five, there is also technical solution six. In technical solution six and its related embodiments, the wiring terminal is located in front of the second liquid supply section and the second liquid return section.

[0011] Based on technical solution four, there is also technical solution seven. In technical solution seven and its related embodiments, at least one limiting member is provided between the first liquid supply section and the first liquid return section.

[0012] Based on technical solution four, there is also technical solution eight. In technical solution eight and its related embodiments, the limiting member is lower than the liquid supply pipe and the liquid return pipe.

[0013] Based on technical solution two, there is also technical solution nine. In technical solution nine and its related embodiments, each cable unit includes at least two cables; the limiting member is provided with a plurality of positioning holes arranged along the second direction, the spacing between adjacent positioning holes is similar to the diameter of the cable, and the cable is adapted to be limited and connected to the limiting member along the second direction and the vertical direction by a cable tie fixed to the positioning hole.

[0014] Based on technical solution three, there is also technical solution ten. In technical solution ten and its related embodiments, the enclosure includes a first compartment for accommodating energy storage equipment and a second compartment for accommodating combiner equipment. The first compartment and the second compartment are separated by a partition wall, and the bottom of the partition wall is provided with a cable passage for cable units to pass through.

[0015] As can be seen from the above description of the present invention and its preferred embodiments, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0016] Through continuous observation, experimentation, and research, the applicant has determined that the technical problem in the existing technology that leads to "high temperature of the cable between the power converter and the combiner device, posing a safety hazard during long-term operation, and the inability to allow excessive input or output current of the energy storage container" is that, in the existing technology, the wiring terminals of the power converter and the cables of the combiner device are easily crossed and stacked with the cables of other power converters and combiners, resulting in concentrated heat and high temperature, which poses a safety hazard during long-term operation. Therefore, the current that the cable between the power converter and the combiner device can carry in the existing technology cannot be too large to avoid excessive temperature, which imposes certain limitations on the application of energy storage containers.

[0017] In the first technical solution and its preferred embodiment, each cable unit includes a first segment extending along a first direction and a second segment bent from the first segment and used to connect to the terminals of the power converter. Each first segment is used to connect to the combiner device and is laid out along the second direction and supported on at least one limiting member. Therefore, the first segments of each cable unit can be neatly arranged along the second direction by being supported on at least one limiting member. Since the second segment of the cable unit corresponding to the power converter that is further away from the combiner device has a longer projection length on the projection plane perpendicular to the first direction, the second segments of each cable unit are also staggered from each other and the second segment of each cable unit does not cross or stack with the first or second segments of other cable units. This makes the cables of each cable unit not cross each other and are neatly arranged, avoiding heat concentration caused by cable stacking. The heat dissipation efficiency of each cable unit is higher than that of the prior art, thus allowing a larger current to pass through. There are fewer restrictions when using energy storage containers. Furthermore, since the first and second segments of the cable unit are neatly arranged, wiring errors are less likely to occur during subsequent maintenance. Furthermore, when the power converter is located below the corresponding battery cluster, the electrical connection cable assembly is also located at the bottom of the container. The limiting device prevents the cable from falling to the bottom of the container or the ground, making it easier to protect the cable unit. When the power converter is located above the corresponding battery cluster, the electrical connection cable assembly is located at the top of the container. The limiting device prevents the cable from contacting the upper surface of the power converter, thus preventing the heat from the power converter from being transferred to the cable unit and causing the cable unit to overheat, thereby improving the heat dissipation efficiency of the cable unit.

[0018] In the second technical solution and its preferred embodiment, each first segment is also matched with the corresponding limiting member along the second direction and the vertical direction to limit and cooperate, which can improve the stability of the cable and further make the cable arrangement of the cable unit neat.

[0019] In technical solution three and its preferred embodiments, the power converter is located below the corresponding battery cluster, and each cable unit is also supported on the liquid supply pipe and the liquid return pipe. This makes full use of the structure of the liquid cooling pipeline system, improves the support stability of the cable unit, and the liquid supply pipe and the liquid return pipe can also remove the heat of the cable unit, further improving the heat dissipation efficiency of the cable unit.

[0020] In the fourth technical solution and its preferred embodiment, the liquid cooling pipeline system includes a coolant supply device placed on the first side of the energy storage device along the first direction. The coolant supply device and the manifold device are placed on the same side, which facilitates maintenance of the energy storage container on the first side of the container. The first liquid supply section and the first liquid return section are arranged along the first direction and are suitable for supporting the first section of each cable unit, which can reduce the number of limiting parts and save material and installation costs.

[0021] In technical solution five and its preferred embodiment, the second liquid supply section and the second liquid return section are arranged along the second direction and are suitable for supporting the second section of each cable unit, which improves the support stability of the second section of the cable unit, prevents the second section of the cable unit from falling to the bottom of the container or the ground, and further improves the heat dissipation efficiency of the cable unit.

[0022] In technical solution six and its preferred embodiment, the wiring terminal is located in front of the second liquid supply section and the second liquid return section. Compared with the wiring terminal being located behind the second liquid supply section and the second liquid return section, this is more conducive to reducing the number of bends in the second section of the cable unit, thereby better preventing damage to the cable unit after multiple bends and extending the service life of the cable unit.

[0023] In technical solution seven and its preferred embodiment, at least one limiting member is also provided between the first liquid supply section and the first liquid return section, which can prevent the first section of the cable unit from falling to the bottom of the container or the ground between the first liquid supply section and the first liquid return section, and further make the cable arrangement of the cable unit neat.

[0024] In technical solution eight and its preferred embodiment, the limiting component is lower than the liquid supply pipe and the liquid return pipe, so that the first segment of the cable unit can undulate and form a stable triangular structure. On the one hand, this is beneficial to the stability of the first segment of the cable unit. On the other hand, it also creates a certain distance between the cable unit and the power converter, further improving the heat dissipation efficiency of the first segment of the cable unit.

[0025] In technical solution nine and its preferred embodiments, each cable unit includes at least two cables; the limiting member is provided with a plurality of positioning holes arranged along the second direction, the spacing between adjacent positioning holes is similar to the diameter of the cable, and the cable is suitable for being limited and connected to the limiting member along the second direction and the vertical direction by cable ties fixed to the positioning holes. The structure is simple and the cost is low.

[0026] In the tenth technical solution and its preferred embodiment, the bottom of the partition wall is provided with a cable passage for the cable unit to pass through. Compared with setting cable passages in other positions of the partition wall, this is more conducive to avoiding damage to the cable unit. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a partial front view of the energy storage container according to an embodiment of this application;

[0029] Figure 2 This is a partial perspective view of an energy storage container according to an embodiment of this application;

[0030] Figure 3 for Figure 2 An enlarged schematic diagram of part A;

[0031] Figure 4 for Figure 2 Top view.

[0032] Explanation of key figure labels:

[0033] 10 housing; 11 first compartment; 12 second compartment; 13 partition wall; 131 cable outlet; 20 battery cluster; 21 battery pack; 30 power converter; 31 terminal block; 40 combiner device; 50 wiring assembly; 51 cable unit; 52 first section; 53 second section; 54 limiting member; 541 positioning hole; 60 liquid supply pipe; 61 first liquid supply section; 62 second liquid supply section; 70 return pipe; 71 first return section; 72 second return section. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0035] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0036] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0037] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0038] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0039] In the claims and the description other than the embodiments, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" only refer to a feature having one of the aforementioned directions being perpendicular to a feature having another direction, and do not require that they be implemented according to the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction is perpendicular to both the Y-axis direction and the Z-axis direction. The X-axis direction can be divided into left and right, the Y-axis direction into front and back, and the Z-axis direction into up and down.

[0040] See Figure 1 , Figure 1 An energy storage container is shown, including a container body 10, energy storage equipment, power conversion equipment, a combiner device 40, a wiring assembly 50, and a liquid-cooled piping system.

[0041] See Figure 2 The enclosure 10 includes a first compartment 11 for accommodating an energy storage device and a second compartment 12 for accommodating a combiner device 40. The first compartment 11 and the second compartment 12 are separated by a partition wall 13. The bottom of the partition wall 13 is provided with a cable passage 131 for the cable unit 51 (described below) to pass through. The second compartment 12 is located on a first side of the first compartment 11 along a first direction. Figure 1-2 In the first direction, the energy storage container is the length direction. In practical applications, the container 10 can also be equipped with more compartments, but this embodiment does not limit this.

[0042] See also Figure 1 The energy storage device is placed in the first compartment 11 of the housing 10 and includes several battery clusters 20 arranged in a horizontal first direction. Each battery cluster 20 includes several battery packs 21 arranged in a vertical direction. The connection relationship between the battery packs 21 can be parallel, series, or a hybrid connection of series followed by parallel or parallel followed by series. In this embodiment, the connection relationship of the battery packs 21 is not limited.

[0043] The power conversion equipment includes power converters 30, one-to-one with the number of battery clusters 20. The power converters 30 are located below the corresponding battery clusters 20. The power converters 30 are connected to each battery pack 21 in the energy storage device via control lines and power lines. The power converters 30 are used to control the on / off state of each battery pack 21. However, in practical applications, the function of the power converters 30 can be configured as needed; this embodiment does not limit this. One end of each power converter 30 is provided with a terminal block 31 along a horizontal second direction perpendicular to the first direction. This terminal block 31 is mainly connected to the combiner device 40. It should be understood that the power conversion equipment is suspended above the ground or forms a gap with the bottom surface of the container, thus providing accommodating space for the wiring assembly 50, the supply pipe 60, and the return pipe 70 (described below).

[0044] The combiner device 40 is placed inside the second compartment 12 of the housing 10 and is located on the first side of the energy storage device along the first direction. Figure 1 (on the right side of the image), in this embodiment, the combiner device 40 is used to output direct current.

[0045] See Figure 2-4 The wiring assembly 50 includes an electrical connection cable group for connecting each power converter 30 and the combiner device 40, and a plurality of limiting members 54 arranged along a first direction and extending along a second horizontal direction perpendicular to the first direction. Each limiting member 54 is fixedly connected to the housing 10 and located on the side of each power converter 30 away from the battery cluster 20. In this embodiment, each limiting member 54 is located at the bottom of the container. The electrical connection cable group includes cable units 51, which are equal in number and correspond one-to-one with the power converters 30. Each cable unit 51 is used to connect a power converter 30 to a battery cluster 40. The converter 30 and the combiner device 40, each cable unit 51 includes a first segment 52 extending along a first direction and a second segment 53 bent from the first segment 52 and used to connect the terminal 31 of the power converter 30. Each first segment 52 is used to connect the combiner device 40 and is laid along a second direction and supported on at least one limiting member 54. The second segment 53 of the cable unit 51 corresponding to the power converter 30 that is further away from the combiner device 40 has a longer projection length on the projection plane perpendicular to the first direction. Figure 2 In this embodiment, the first segment 52 of the cable unit 51 closest to the partition wall 13 is closest to the front of the container, and the first segment 52 of the cable unit 51 furthest from the partition wall 13 is closest to the rear of the container. Preferably, in this embodiment, each first segment 52 is also matched with a corresponding limiting member 54 for limiting in the second direction and vertical direction. In this embodiment, each cable unit 51 includes at least two cables; the limiting member 54 is provided with a plurality of positioning holes 541 arranged along the second direction, the spacing between adjacent positioning holes 541 is similar to the diameter of the cable, and the cable is adapted to be connected to the limiting member 54 for limiting in the second direction and vertical direction by cable ties fixed to the positioning holes 541.

[0046] The liquid-cooled piping system is used to dissipate heat from the energy storage device and is housed within the enclosure 10. This liquid-cooled piping system is existing technology. In this embodiment, the liquid-cooled piping system includes a coolant supply device located on a first side of the energy storage device along a first direction. The liquid-cooled piping system includes a supply pipe 60 and a return pipe 70 located at the bottom of the enclosure 10. Both the supply pipe 60 and the return pipe 70 are connected to the coolant supply device. The supply pipe 60 has a first supply section 61 extending along a second direction, and the return pipe 70 has a first return section 71 extending along a second direction. The first supply section 61 and the first return section 71 are arranged along the first direction and are adapted to support the first section 52 of each cable unit 51. Figure 2 and Figure 4 In the middle, the liquid supply pipe 60 is provided with a second liquid supply section 62 extending along the first direction and communicating with the first liquid supply section 61, and the liquid return pipe 70 is provided with a second liquid return section 72 extending along the first direction and communicating with the first liquid return section 71; the second liquid supply section 62 and the second liquid return section 72 are arranged along the second direction and are adapted to support the second section 53 of each cable unit 51. Figure 2 and Figure 4 In this configuration, the first segment 52 of each cable unit 51 is supported on the first liquid supply section 61 and the first liquid return section 71, and the second segment 53 of each cable unit 51 is also basically supported on the second liquid supply section 62 and the second liquid return section 72, except for the second segment 53 furthest from the partition wall 13, which is not supported on the second liquid supply section 62 and the second liquid return section 72. At least one limiting member 54 is also provided between the first liquid supply section 61 and the first liquid return section 71. Figure 4 Only one limiting member 54 is shown between the first liquid supply section 61 and the first liquid return section 71. However, it should be understood that the number of limiting members 54 can be set according to the distance between the first liquid supply section 61 and the first liquid return section 71. This embodiment does not limit this.

[0047] In this embodiment, the terminal block 31 is located in front of the second liquid supply section 62 and the second liquid return section 72. The limiting member 54 is lower than the liquid supply pipe 60 and the liquid return pipe 70.

[0048] In this embodiment, each cable unit 51 is also supported on the liquid supply pipe 60 and the liquid return pipe 70, the first segment 52 of each cable unit 51 is supported on the first liquid supply section 61 and the first liquid return section 71, and the second segment 53 of each cable unit 51 is also supported on the second liquid supply section 62 and the second liquid return section 72.

[0049] It should be understood that although this embodiment only shows the implementation where the power converter 30 is located below the corresponding battery cluster 20, those skilled in the art will understand that the power converter 30 can also be located above the corresponding battery cluster 20. When the power converter 30 is located above the corresponding battery cluster 20, a gap is formed between the top of each power converter 30 and the top surface of the container, thereby providing a space for accommodating the wiring assembly 50. At this time, the cable outlet 131 is located at the top of the partition wall 13, each limiting member 54 is located above each power converter 30, and the electrical connection cable group is located at the top of the container.

[0050] In this embodiment, each cable unit 51 includes a first segment 52 extending along a first direction and a second segment 53 bent from the first segment 52 and used to connect the terminal block 31 of the power converter 30. Each first segment 52 is used to connect the combiner device 40 and is arranged along the second direction and supported on at least one limiting member 54. Therefore, the first segments 52 of each cable unit 51 can be neatly arranged along the second direction by being supported on at least one limiting member 54. Since the second segment 53 of the cable unit 51 corresponding to the power converter 30 that is farther away from the combiner device 40 is projected onto the projection plane perpendicular to the first direction, The longer the cable unit 51, the more staggered the second segments 53 of each cable unit 51 become, and the second segments 53 of each cable unit 51 do not cross or stack with the first segments 52 or 53 of other cable units 51. This ensures that the cables of each cable unit 51 do not cross each other and are neatly arranged, avoiding heat concentration caused by cable stacking. The heat dissipation efficiency of each cable unit 51 is higher than that of existing technologies, allowing for the passage of larger currents. There are fewer restrictions when using it in energy storage containers. Furthermore, since the first segments 52 and 53 of the cable units 51 are neatly arranged, wiring errors are less likely to occur during subsequent maintenance. In addition, when the power converter 30 is located below the corresponding battery cluster 20, the electrical connection cable group is also located at the bottom of the container. The setting of the limiting member 54 makes it less likely for the cables to fall to the bottom of the container or the ground, making it easier to protect the cable units 51. When the power converter 30 is located above the corresponding battery cluster 20, the electrical connection cable group is located on the top of the container. The setting of the limiting member 54 can prevent the cable from contacting the upper surface of the power converter 30, and can prevent the heat of the power converter 30 from being transferred to the cable unit 51, causing the temperature of the cable unit 51 to be too high, thereby improving the heat dissipation efficiency of the cable unit 51.

[0051] In this embodiment, each first segment 52 is also matched with the corresponding limiting member 54 in the second direction and the vertical direction to limit and cooperate, which can improve the stability of the cable and further make the cable arrangement of the cable unit 51 neat.

[0052] In this embodiment, the power converter 30 is located below the corresponding battery cluster 20, and each cable unit 51 is also supported on the liquid supply pipe 60 and the liquid return pipe 70. This makes full use of the structure of the liquid cooling pipeline system, improves the support stability of the cable unit 51, and the liquid supply pipe 60 and the liquid return pipe 70 can also remove the heat from the cable unit 51, further improving the heat dissipation efficiency of the cable unit 51.

[0053] In this embodiment, the liquid cooling pipeline system includes a coolant supply device placed on the first side of the energy storage device along the first direction. The coolant supply device and the manifold 40 are placed on the same side, which facilitates maintenance of the energy storage container on the first side of the container. The first liquid supply section 61 and the first liquid return section 71 are arranged along the first direction and are suitable for supporting the first section 52 of each cable unit 51, which can reduce the number of limiting parts 54 and save material and installation costs.

[0054] In this embodiment, the second liquid supply section 62 and the second liquid return section 72 are arranged along the second direction and are suitable for supporting the second section 53 of each cable unit 51, which improves the support stability of the second section 53 of the cable unit 51, prevents the second section 53 of the cable unit 51 from falling to the bottom of the container or the ground, and further improves the heat dissipation efficiency of the cable unit 51.

[0055] In this embodiment, the terminal block 31 is located in front of the second liquid supply section 62 and the second liquid return section 72. Compared with the terminal block 31 being located behind the second liquid supply section 62 and the second liquid return section 72, this is more conducive to reducing the number of bends in the second section 53 of the cable unit 51, thereby better preventing damage to the cable unit 51 after multiple bends and extending the service life of the cable unit 51.

[0056] In this embodiment, at least one limiting member 54 is also provided between the first liquid supply section 61 and the first liquid return section 71, which can prevent the first section 52 of the cable unit 51 from falling to the bottom of the container or the ground between the first liquid supply section 61 and the first liquid return section 71, and further make the cable arrangement of the cable unit 51 neat.

[0057] In this embodiment, the limiting member 54 is lower than the liquid supply pipe 60 and the liquid return pipe 70, so that the first segment 52 of the cable unit 51 has undulations and can form a stable triangular structure. On the one hand, this is beneficial to the stability of the first segment 52 of the cable unit 51. On the other hand, it also makes a certain gap between the cable unit 51 and the power converter 30, which further improves the heat dissipation efficiency of the first segment 52 of the cable unit 51.

[0058] In this embodiment, each cable unit 51 includes at least two cables; the limiting member 54 is provided with a plurality of positioning holes 541 arranged along the second direction, the spacing between adjacent positioning holes 541 is similar to the diameter of the cable, and the cable is suitable for being limited and connected to the limiting member 54 along the second direction and the vertical direction by cable ties fixed to the positioning holes 541. The structure is simple and the cost is low.

[0059] In this embodiment, the bottom of the partition wall 13 is provided with a cable passage 131 for the cable unit 51 to pass through. Compared with other locations of the partition wall 13, the cable passage 131 is more conducive to avoiding damage to the cable of the cable unit 51.

[0060] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. An energy storage container, comprising a container body (10), an energy storage device, a power conversion device, a combiner device (40), and a wiring assembly (50), wherein the energy storage device is disposed within the container body (10) and includes a plurality of battery clusters (20) arranged along a first horizontal direction; the power conversion device includes power converters (30) in equal and one-to-one correspondence with the number of battery clusters (20), the power converters (30) being located above or below the corresponding battery clusters (20); one end of each power converter (30) is provided with a terminal block (31) along a second direction; the combiner device (40) is disposed within the container body (10) and located on a first side of the energy storage device along the first direction; the wiring assembly (50) includes an electrical connection cable group for connecting each power converter (30) and the combiner device (40), characterized in that, The wiring assembly (50) further includes several limiting members (54) arranged along a first direction and extending along a second horizontal direction perpendicular to the first direction. Each limiting member (54) is fixed to the housing (10) and located on the side of each power converter (30) away from the battery cluster (20). The electrical connection cable group includes cable units (51) equal in number and corresponding one-to-one with the power converters (30). Each cable unit (51) is used to connect a power converter (30) and a combiner device (40). Each cable unit (51) includes... A first segment (52) extending along a first direction and a second segment (53) bending from the first segment (52) and used to connect the terminal (31) of the power converter (30), each first segment (52) is used to connect the combiner device (40) and is laid along a second direction and supported on at least one limiting member (54); wherein, the second segment (53) of the cable unit (51) corresponding to the power converter (30) that is further away from the combiner device (40) has a longer projection length on the projection plane perpendicular to the first direction.

2. The energy storage container as described in claim 1, characterized in that, Each first segment (52) is also limited and matched with the corresponding limiting member (54) in the second direction and the vertical direction.

3. The energy storage container as described in claim 2, characterized in that, The power converter (30) is located below the corresponding battery cluster (20); it also includes a liquid cooling pipe system for dissipating heat from the energy storage device and placed inside the housing (10); the liquid cooling pipe system includes a supply pipe (60) and a return pipe (70) placed at the bottom of the housing (10), and each cable unit (51) is also supported on the supply pipe (60) and the return pipe (70).

4. An energy storage container as described in claim 3, characterized in that, The liquid cooling pipeline system includes a coolant supply device placed on the first side of the energy storage device along a first direction. The supply pipe (60) and the return pipe (70) are both connected to the coolant supply device. The supply pipe (60) is provided with a first supply section (61) extending along a second direction, and the return pipe (70) is provided with a first return section (71) extending along a second direction. The first supply section (61) and the first return section (71) are arranged along the first direction and are adapted to support the first section (52) of each cable unit (51).

5. An energy storage container as described in claim 4, characterized in that, The liquid supply pipe (60) is provided with a second liquid supply section (62) extending along the first direction and communicating with the first liquid supply section (61), and the liquid return pipe (70) is provided with a second liquid return section (72) extending along the first direction and communicating with the first liquid return section (71); the second liquid supply section (62) and the second liquid return section (72) are arranged along the second direction and are adapted to support the second section (53) of each cable unit (51).

6. An energy storage container as described in claim 5, characterized in that, The terminal block (31) is located in front of the second liquid supply section (62) and the second liquid return section (72).

7. An energy storage container as described in claim 4, characterized in that, At least one limiting element (54) is also provided between the first liquid supply section (61) and the first liquid return section (71).

8. An energy storage container as described in claim 4, characterized in that, The limiting member (54) is lower than the supply pipe (60) and the return pipe (70).

9. An energy storage container as described in claim 2, characterized in that, Each cable unit (51) includes at least two cables; the limiting member (54) is provided with a plurality of positioning holes (541) arranged along the second direction, the spacing between adjacent positioning holes (541) is similar to the diameter of the cable, and the cable is adapted to be limited and connected to the limiting member (54) along the second direction and the vertical direction by cable ties fixed to the positioning holes (541).

10. An energy storage container as described in claim 3, characterized in that, The enclosure (10) includes a first compartment (11) for accommodating the energy storage device and a second compartment (12) for accommodating the combiner device (40). The first compartment (11) and the second compartment (12) are separated by a partition wall (13), and the bottom of the partition wall (13) is provided with a cable passage (131) for the cable unit (51) to pass through.

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