Cable connection box and energy storage system

Abstract

The utility model provides a cable connection box and an energy storage system, and the cable connection box comprises a first end part connecting piece, a second end part connecting piece, a flexible pipe, a first connecting pipe, and a second connecting pipe. The first end connecting piece, the first connecting pipe, the second connecting pipe and the second end connecting piece are fixedly connected in sequence. According to the cable connection box, the two interfaces are in butt joint, the hose is connected between the two interfaces, so that flexible connection is achieved, offset during butt joint is compensated, after the position is confirmed, the first connection pipe and the second connection pipe are fixed through the fixing bolts, and hard connection of the cable connection box is achieved; flexible connection is changed into hard connection, the requirement of the energy storage container for the flatness of a placement surface is lowered on the premise that the connection stability is guaranteed, the installation cost of the energy storage container is reduced to a great extent, and meanwhile the sealing and protection capacity for internal cables is greatly improved through the soft and hard two-layer connection structure.

Description

Technical Field

[0001] The utility model relates to the field of energy storage, and in particular to a cable connection box and an energy storage system. Background Art

[0002] Energy storage technology is widely used in the field of renewable energy power generation, such as smoothing wind power output, achieving active power leveling and frequency modulation. Mobile battery energy storage system is the main way to build battery energy storage system at present and in the future. Container is the main carrier of mobile battery energy storage system, which has the advantages of convenient long-distance transportation, convenient and fast operation and maintenance, etc.

[0003] When the energy storage containers in the prior art are docked, the two energy storage containers to be docked are first placed on the same horizontal plane, and then the two energy storage containers are connected through the connecting warehouse, so as to ensure the stability of the electrical connection between the two energy storage containers and protect the cables inside the connecting warehouse.

[0004] In order to ensure the stability of the energy storage container connection and protect the safety of the connecting cables, it is necessary to ensure that the energy storage containers are on the same plane. When a large number of energy storage containers are placed, a lot of manpower and material resources are needed to repair the placement site to ensure the flatness of the site, which makes the installation cost of the energy storage containers too high.

[0005] The above problems need to be solved urgently. Utility Model Content

[0006] The utility model aims to provide a cable connection box and an energy storage container.

[0007] In order to solve the above technical problems, the utility model provides a cable connection box, comprising:

[0008] A first end connector, a second end connector, a hose, a first connecting pipe, and a second connecting pipe;

[0009] The first end connecting piece and the second end connecting piece are arranged opposite to each other;

[0010] The hose is connected between the first end connector and the second end connector;

[0011] The first connecting pipe and the second connecting pipe are sleeved on the hose;

[0012] The first end connector, the first connecting pipe, the second connecting pipe and the second end connector are connected in sequence.

[0013] Furthermore, a first flange is extended outward from one end of the first connecting tube close to the second connecting tube;

[0014] A second flange is extended outwardly from one end of the second connecting tube close to the first connecting tube;

[0015] The first flange is provided with a first adjustment hole;

[0016] A second adjustment hole is provided at a position of the second flange corresponding to the first adjustment hole;

[0017] The opening directions of the first adjustment hole and the second adjustment hole are perpendicularly arranged and are fixed by fixing bolts.

[0018] Further, the first adjustment hole is arranged along the first direction, and the second adjustment hole is arranged along the second direction; or the first adjustment hole is arranged along the second direction, and the second adjustment hole is arranged along the first direction.

[0019] Furthermore, the first connecting pipe is provided with N first adjustment holes;

[0020] The second connecting pipe is provided with N second adjustment holes;

[0021] Wherein, N is greater than or equal to 1.

[0022] Furthermore, the side wall of the first connecting tube and the side wall of the second connecting tube are both provided with M third adjustment holes, wherein M is greater than or equal to 1.

[0023] Furthermore, the third adjustment hole is arranged along a third direction, wherein the third direction is perpendicular to a plane formed by the first direction and the second direction.

[0024] Furthermore, fixing holes are provided at the fitting positions of the first end connecting piece and the second end connecting piece and the corresponding third adjustment holes.

[0025] Further, the first connecting pipe is slidably connected to the first end connecting piece, and is suitable for being fixed by a fixing bolt passing through the corresponding third adjustment hole and the fixing hole;

[0026] The second connecting pipe is slidably connected to the second end connecting piece, and is suitable for being fixed by means of fixing bolts passing through the corresponding third adjustment holes and fixing holes.

[0027] Furthermore, the ends of the first end connecting piece and the second end connecting piece both extend outwardly to form fixed flanges;

[0028] An equipotential point is arranged on the fixed flange.

[0029] Furthermore, the first connecting pipe is separately provided and / or the second connecting pipe is separately provided.

[0030] On the other hand, the utility model also provides an energy storage system, comprising:

[0031] At least two energy storage containers;

[0032] Two adjacent energy storage containers are connected via the cable connection box as described above.

[0033] The beneficial effect of the utility model is that the utility model provides a cable connection box and an energy storage system, the cable connection box is set in the form of two interface docking, and a hose is connected between the two interfaces to achieve soft connection, and compensate for the offset during docking. After the position is confirmed, the first connecting pipe and the second connecting pipe are fixed by fixing bolts to achieve a hard connection of the cable connection box, from a soft connection to a hard connection. Under the premise of ensuring the stability of the connection, the energy storage container's requirements for the flatness of the placement surface are reduced, and the installation cost of the energy storage container is greatly reduced. At the same time, the soft and hard two-layer connection structure greatly improves the sealing and protection capabilities of the internal cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Figure 1 It is a structural schematic diagram of the cable connection box provided in this embodiment from a first perspective.

[0036] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0037] Figure 3 It is a structural schematic diagram of the cable connection box provided in this embodiment from a second viewing angle.

[0038] Figure 4 It is a partial structural schematic diagram of the cable connection box provided in this embodiment.

[0039] In the figure: 110, first end connector; 111, fixed flange; 112, equipotential point; 113, fixed copper busbar; 120, second end connector; 130, hose; 140, first connecting pipe; 141, first flange; 1411, first adjustment hole; 150, second connecting pipe; 151, second flange; 1511, second adjustment hole; 152, third adjustment hole; 153, fixed hole; 154, top cover; 155, bottom plate. DETAILED DESCRIPTION

[0040] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model. Example 1

[0041] See also Figure 1-Figure 4 The utility model provides a cable connection box, including: a first end connector 110, a second end connector 120, a hose 130, a first connecting tube 140 and a second connecting tube 150; the first end connector 110 and the second end connector 120 are arranged opposite to each other; the hose 130 is fixedly connected between the first end connector 110 and the second end connector 120; the first connecting tube 140 and the second connecting tube 150 are sleeved on the hose 130; the first end connector 110, the first connecting tube 140, the second connecting tube 150 and the second end connector 120 are fixedly connected in sequence. The cable connection box is configured to have two interfaces connected, and a hose 130 is connected between the two interfaces to achieve a soft connection and compensate for the offset during the connection. After the position is confirmed, the first connection tube 140 and the second connection tube 150 are fixed by fixing bolts (not shown) to achieve a hard connection of the cable connection box, from a soft connection to a hard connection. Under the premise of ensuring the stability of the connection, the energy storage container's requirements for the flatness of the placement surface are reduced, which greatly reduces the installation cost of the energy storage container. At the same time, the soft and hard two-layer connection structure greatly improves the sealing and protection capabilities of the internal cables.

[0042] The hose 130 is a fireproof pipe.

[0043] When the energy storage containers are docked, it is only necessary to ensure that the corresponding ground is flat when a single energy storage container is placed, which reduces the degree of finishing of the ground flatness and reduces the installation cost of the energy storage containers.

[0044] In order to compensate for the offset when the first connecting tube 140 and the second connecting tube 150 are connected, in the present application, a first flange 141 is extended outward from one end of the first connecting tube 140 close to the second connecting tube 150; a second flange 151 is extended outward from one end of the second connecting tube 150 close to the first connecting tube 140; a first adjustment hole 1411 is provided on the first flange 141; a second adjustment hole 1511 is provided on the second flange 151; the first adjustment hole 1411 is arranged perpendicular to the opening direction of the second adjustment hole 1511, and are fixed by bolts. During installation, the first end connector 110 and the second end connector 120 are first fixed to the corresponding energy storage container respectively, and the soft connection of the cable is realized through the hose 130. Then, the first connecting tube 140 and the second connecting tube 150 are sleeved on the outside of the hose 130, and then the offset is compensated through the first adjustment hole 1411 and the second adjustment hole 1511. Then, the first connecting tube 140 and the second connecting tube 150 are fixed by fixing bolts, realizing a hard connection, realizing the sealing of the cable, and improving the protection capability of the cable.

[0045] Specifically, the first adjustment hole 1411 is arranged along the first direction, and the second adjustment hole 1511 is arranged along the second direction; or the first adjustment hole 1411 is arranged along the second direction, and the second adjustment hole 1511 is arranged along the first direction. Figure 1 The Y-axis direction in the second direction is Figure 1 The Z-axis direction.

[0046] In order to improve the connection strength between the first connecting tube 140 and the second connecting tube 150 , in the present application, N first adjustment holes are provided on the first connecting tube 140 ; ​​N second adjustment holes 1511 are provided on the second connecting tube 150 ; wherein N is greater than or equal to 1.

[0047] Since the interval between two adjacent energy storage containers may deviate, in order to compensate for this deviation, in this embodiment, the side wall of the first connecting pipe 140 and the side wall of the second connecting pipe 150 are both provided with M third adjustment holes 152, wherein M is greater than or equal to 1. The third adjustment holes 152 are arranged along a third direction, wherein the third direction is perpendicular to the plane formed by the first direction and the second direction. Specifically, the third direction is Figure 1 A fixing hole 153 is provided at the fitting position between the first end connector 110 and the second end connector 120 and the corresponding third adjustment hole 152 .

[0048] In this embodiment, the first connecting tube 140 is slidably connected to the first end connecting member 110, and is suitable for being fixed by fixing bolts passing through the corresponding third adjustment holes 152 and fixing holes 153; the second connecting tube 150 is slidably connected to the second end connecting member 120, and is suitable for being fixed by fixing bolts passing through the corresponding third adjustment holes 152 and fixing holes 153. During installation, the positions of the first connecting tube 140 and the second connecting tube 150 are adjusted by sliding, and after being adjusted to a suitable position, the first connecting tube 140 and the second connecting tube 150 are fixed by fixing bolts to complete the compensation of the spacing deviation, thereby improving the connection strength of the cable connection box.

[0049] In this embodiment, the ends of the first end connector 110 and the second end connector 120 extend outwardly to form a fixed flange 111; an equipotential point 112 is provided on the fixed flange 111; the first end connector 110, the second end connector 120, the first connecting pipe 140 and the second connecting pipe 150 are all made of conductive materials. The equipotential point 112 is formed by contacting the installation bolts with the welded stainless steel gasket to form an equipotential point 112 between the cable connection box and the energy storage container.

[0050] In this embodiment, the second connecting pipe 150 is split, and includes a bottom plate 155 and a top cover 154; the bottom plate 155 is arranged below the fireproof cloth; the top cover 154 is buckled on the fireproof cloth and fixedly connected to the bottom plate 155. In order to facilitate the compensation of the distance between two adjacent energy storage containers and the installation of the cable connection box, the second connecting pipe 150 is split, so as to facilitate the overall installation of the cable connection box.

[0051] In other embodiments, the structure of the first connecting tube 140 may be the same as that of the second connecting tube 150, and may be a split-type arrangement. Alternatively, in other embodiments, only the first connecting tube 140 may be a split-type arrangement, and the second connecting tube 150 may be an integrated structure. That is, at least one of the first connecting tube 140 and the second connecting tube 150 may be a split-type arrangement.

[0052] In this embodiment, a fixed copper bus 113 is disposed inside the first end connector 110 for fixing the cable.

[0053] This embodiment also provides an energy storage system, including: at least two energy storage containers; two adjacent energy storage containers are connected by a cable connection box as described above. The cable connection box is set in the form of two interface docking, and a hose 130 is connected between the two interfaces to achieve a soft connection, and the offset during docking is compensated. After the position is confirmed, the first connecting pipe 140 and the second connecting pipe 150 are fixed by fixing bolts to achieve a hard connection of the cable connection box, from a soft connection to a hard connection. Under the premise of ensuring the stability of the connection, the energy storage container's requirements for the flatness of the placement surface are reduced, and the installation cost of the energy storage container is greatly reduced. At the same time, the soft and hard two-layer connection structure greatly improves the sealing and protection capabilities of the internal cables.

[0054] All devices (parts without specific structure) selected in this application are universal standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods. In addition, the software programs involved in this application are all prior art, and this application does not involve any improvement to the software programs.

[0055] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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.

[0056] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0057] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0058] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0059] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0060] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cable connection box, characterized in that: include: A first end connector, a second end connector, a hose, a first connecting pipe, and a second connecting pipe; The first end connecting piece and the second end connecting piece are arranged opposite to each other; The hose is connected between the first end connector and the second end connector; The first connecting pipe and the second connecting pipe are sleeved on the hose; The first end connector, the first connecting pipe, the second connecting pipe and the second end connector are connected in sequence.

2. The cable connection box according to claim 1, characterized in that: A first flange is extended outwardly from one end of the first connecting tube close to the second connecting tube; A second flange is extended outwardly from one end of the second connecting tube close to the first connecting tube; The first flange is provided with a first adjustment hole; The second flange is provided with a second adjustment hole; The first adjustment hole and the second adjustment hole are arranged in a perpendicular and corresponding direction and are fixed by bolts.

3. The cable connection box according to claim 2, characterized in that: The first adjustment hole is arranged along the first direction, and the second adjustment hole is arranged along the second direction; or the first adjustment hole is arranged along the second direction, and the second adjustment hole is arranged along the first direction.

4. The cable connection box according to claim 2, characterized in that: The first connecting pipe is provided with N first adjustment holes; The second connecting pipe is provided with N second adjustment holes; Wherein, N is greater than or equal to 1.

5. The cable connection box according to claim 2, characterized in that: The side wall of the first connecting tube and the side wall of the second connecting tube are both provided with M third adjustment holes, wherein M is greater than or equal to 1.

6. The cable connection box according to claim 5, characterized in that: The third adjustment hole is arranged along a third direction, wherein the third direction is perpendicular to a plane formed by the first direction and the second direction.

7. The cable connection box according to claim 5, characterized in that: A fixing hole is provided at the matching position between the first end connecting piece and the second end connecting piece and the corresponding third adjustment hole.

8. The cable connection box according to claim 7, characterized in that: The first connecting pipe is slidably connected to the first end connecting piece and is suitable for being fixed by bolts passing through the corresponding third adjustment holes and fixing holes; The second connecting pipe is slidably connected to the second end connecting piece, and is suitable for being fixed by bolts passing through the corresponding third adjustment holes and fixing holes.

9. The cable connection box according to claim 1, characterized in that: The ends of the first end connecting piece and the second end connecting piece both extend outwards to form fixed flanges; An equipotential point is arranged on the fixed flange.

10. The cable connection box according to claim 1, characterized in that: The first connecting pipe is separately provided and / or the second connecting pipe is separately provided.

11. An energy storage system, characterized in that: include: At least two energy storage containers; Two adjacent energy storage containers are connected via a cable connection box as described in any one of claims 1 to 10.

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