Energy storage Pack package

Abstract

The utility model discloses an energy storage Pack which comprises a bottom support and a cover plate, a plurality of batteries are arranged between the bottom support and the cover plate, the batteries are arranged in a row, the top surface of each battery is provided with a positive terminal and a negative terminal, the positive terminals in the batteries are arranged in a row and are connected through a positive copper bar, and the negative terminals in the batteries are connected through a negative copper bar. The negative terminals in the batteries are arranged in a row and are connected through a negative copper bar; one end of the positive electrode copper bar and one end of the negative electrode copper bar extend out of one side of the cover plate to serve as a total positive wiring part and a total negative wiring part; the bottom support and the cover plate are connected and fixed through a plurality of threaded rods. By means of split charging of the upper cover, the battery pack and the bottom support of the energy storage Pack, on one hand, the installation efficiency of the energy storage Pack is improved, and installation is more convenient; on the other hand, the heat dissipation effect of the battery pack is greatly improved, and the contact area with cold air is larger.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage, and in particular relates to an energy storage Pack. Background Art

[0002] At present, with the development of renewable energy such as photovoltaic power generation, how to store electrical energy has become a new research direction.

[0003] An existing battery energy storage cabinet, such as a battery thermal management device for an energy storage cabinet disclosed in a Chinese invention patent with publication number CN109148998A, comprises a cooling component, an energy storage cabinet body, at least one battery module and a high-voltage box, each of the at least one battery module is connected to the high-voltage box, and the at least one battery module and the high-voltage box are both arranged inside the energy storage cabinet body, the cooling component is arranged inside the energy storage cabinet body, and is arranged with a gap between the at least one battery module and the high-voltage box; wherein the cooling component is used to heat the at least one battery module and input cooling gas into the high-voltage box to reduce the temperature of the battery module and the high-voltage box by the cooling gas; the energy storage cabinet body includes a first cabinet body part and a second cabinet body part; the first cabinet body part and the second cabinet body part are arranged relatively parallel; wherein, the at least one battery module is arranged above the first cabinet body part, and the high-voltage box is arranged below the first cabinet body part; the cooling component is arranged in the second cabinet body part, and the upper part of the cooling component is flush with the battery module above the first cabinet body part, and the lower part of the cooling component is flush with the high-voltage box below the first cabinet body part.

[0004] The energy storage cabinet disclosed in the above patent application has poor heat dissipation effect, and the space utilization rate of the entire system is low, and the energy storage cabinet occupies a large area. Utility Model Content

[0005] The utility model aims at the above-mentioned deficiencies in the prior art and provides an energy storage Pack.

[0006] An energy storage pack includes a bottom support and a cover plate, a plurality of batteries are placed between the bottom support and the cover plate, the batteries are arranged in a row, the top surface of each battery has a positive terminal and a negative terminal, the positive terminals in each battery are arranged in a row and connected by a positive copper busbar, and the negative terminals in each battery are arranged in a row and connected by a negative copper busbar;

[0007] One end of the positive copper bar and the negative copper bar extends from one side of the cover plate to serve as a total positive connection portion and a total negative connection portion;

[0008] The bottom bracket and the cover plate are connected and fixed by a plurality of threaded rods.

[0009] Preferably, the edge of the base has a screw hole, and the bottom of the threaded rod has a threaded portion that cooperates with the screw hole; the edge of the cover plate has a connecting countersunk hole, and the top of the threaded rod has a screw head that cooperates with the connecting countersunk hole, and when fixed, the screw head is located in the connecting countersunk hole.

[0010] Preferably, the positive copper bar and the negative copper bar are embedded in the cover plate, and mounting holes are provided at positions of the positive copper bar and the negative copper bar corresponding to the positive terminal or the negative terminal, and the positive copper bar or the negative copper bar is fixed to the positive terminal or the negative terminal by bolts passing through the mounting holes;

[0011] The cover plate is provided with an avoidance groove for avoiding the positive copper bar and the negative copper bar and facilitating the installation of the bolts.

[0012] More preferably, the positive copper bar and the negative copper bar are bent downward in the area where the mounting hole is located to form a sunken area.

[0013] Further preferably, the bending area between the sinking area and the non-sinking area of ​​the positive copper bar and the negative copper bar is 50 to 70 degrees with the vertical direction.

[0014] Preferably, the total positive connection part of the positive copper busbar and the total negative connection part of the negative copper busbar are each provided with a connection hole.

[0015] Preferably, the energy storage Pack is provided with a panel for covering and protecting the total positive wiring part and the total negative wiring part on the side where the total positive wiring part and the total negative wiring part are located.

[0016] More preferably, the panel is provided with plug-in pins, and the base and the cover are correspondingly provided with plug-in ports, and during installation, the plug-in pins are inserted into the plug-in ports.

[0017] Preferably, the top surface of the bottom bracket has limiting grooves for limiting the position of the battery, and a battery is placed in each limiting groove;

[0018] The bottom edge of the cover plate is provided with a circle of limiting convex edges, and the battery is located inside the limiting convex edges.

[0019] Preferably, the two sides of the long side of the base are respectively provided with a concave surface and a convex surface for mutual cooperation when two energy storage packs are combined.

[0020] The cover plate and the base are both made of SMC material (Sheet Molding Compound). Using SMC material to make the energy storage pack can, on the one hand, ensure the strength of the pack and facilitate transportation; on the other hand, the material can insulate the battery to prevent battery leakage from affecting other batteries or short circuiting.

[0021] Compared with the prior art, the utility model is beneficial in that:

[0022] By packaging the energy storage pack cover, battery pack and bottom bracket separately, on the one hand, the installation efficiency of the energy storage pack is improved, and the installation is more convenient; on the other hand, the heat dissipation effect of the battery pack is greatly improved, and the contact area with the cold air is larger. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the energy storage Pack of the utility model.

[0024] Figure 2 It is a schematic diagram of the explosion structure of the energy storage Pack of the utility model.

[0025] Figure 3 This is a schematic diagram of the explosion structure of the energy storage Pack of the utility model from another perspective.

[0026] Figure 4 A schematic diagram of the panel structure.

[0027] Figure 5 It is a schematic diagram of the structure of the cover plate.

[0028] Figure 6 It is a schematic diagram of the structure of the positive copper busbar and the negative copper busbar.

[0029] Figure 7 for Figure 6 A is a partial enlarged view.

[0030] Reference numerals:

[0031] Base 1, screw hole 11, limit groove 12, concave surface 13, convex surface 14, plug interface 15,

[0032] Cover plate 2, connecting countersunk hole 21, avoidance groove 22, limiting convex edge 23, plug interface 24,

[0033] Battery 3,

[0034] Copper busbar 4, main wiring part 41, mounting hole 42, sinking area 43, connection hole 44,

[0035] Threaded rod 5, threaded portion 51, screw head 52,

[0036] The panel 6 is plugged with the card pin 61 . DETAILED DESCRIPTION

[0037] like Figures 1 to 7 As shown, an energy storage Pack includes a base 1 and a cover 2, and a plurality of batteries 3 are placed between the base 1 and the cover 2, and the batteries 3 are arranged in a row.

[0038] like Figures 1 to 3As shown, the bottom bracket 1 and the cover plate 2 are connected and fixed by a plurality of threaded rods 5. The edge of the bottom bracket 1 has a screw hole 11, and the bottom of the threaded rod 5 has a threaded portion 51 that matches the screw hole 11. The edge of the cover plate 2 has a connecting countersunk hole 21, and the top of the threaded rod 5 has a screw head 52 that matches the connecting countersunk hole 21. When fixed, the screw head 52 is located in the connecting countersunk hole 21.

[0039] The number of threaded rods 5 is generally at least one at each of the four corners. When the entire energy storage Pack is long, another threaded rod 5 can be added in the middle of the long side to make the overall assembly structure more solid. In the structure shown in the figure, the number of threaded rods 5 is one at each of the four corners, and one in the middle of the long sides on both sides, for a total of 6 threaded rods 5. Correspondingly, the edge of the base 1 has a total of 6 screw holes 11, and the edge of the cover 2 has a total of 6 connection countersunk holes 21.

[0040] The top surface of the bottom bracket 1 has a limiting groove 12 for limiting the battery 3, and a battery 3 is placed in each limiting groove 12. Each battery 3 is placed in the limiting groove 12 on the bottom bracket 1, and the limiting groove 12 plays a positioning role, so the depth of the limiting groove 12 does not need to be very deep, and it only needs to have a sufficient limiting effect. If the limiting groove 12 is too deep, it will be unfavorable for the heat dissipation of the battery 3. At the same time, there is a certain interval between adjacent limiting grooves 12, so that there is a gap between the assembled batteries 3, and this gap is conducive to the heat dissipation of the battery 3.

[0041] A circle of limiting convex edges 23 are provided at the bottom edge of the cover plate 2, and the battery 3 is located inside the limiting convex edges 23. Since the limiting grooves 12 in the base 1 have already played a role in limiting the position of the battery 3, the limiting effect of the cover plate 2 on the battery 3 is reduced. A circle of limiting convex edges 23 are provided to make the battery 3 within the range surrounded by the limiting convex edges 23, which further plays a role in limiting the battery 3.

[0042] The top surface of each battery 3 has a positive terminal and a negative terminal. The positive terminals in each battery 3 are arranged in a row and connected by a positive copper busbar, and the negative terminals in each battery 3 are arranged in a row and connected by a negative copper busbar. Both the positive terminal and the negative terminal are arranged along the length direction of the energy storage pack.

[0043] like Figures 5 to 7 As shown, one end of the positive copper bar and the negative copper bar extends from one side of the cover plate as the total positive connection part and the total negative connection part. The positive copper bar and the negative copper bar are collectively referred to as copper bar 4, and the total positive connection part and the total negative connection part are collectively referred to as the total connection part 41.

[0044] The positive copper bar and the negative copper bar are embedded in the cover plate 2. The positive copper bar and the negative copper bar are provided with mounting holes 42 at positions corresponding to the positive terminal or the negative terminal. The positive copper bar or the negative copper bar is fixed to the positive terminal or the negative terminal by bolts (bolts not shown in the figure) passing through the mounting holes 42. The cover plate 2 is provided with an avoidance groove 22 for avoiding the positive copper bar and the negative copper bar and facilitating the installation of the bolts. The avoidance groove 22 also plays a role in heat dissipation and ventilation.

[0045] In a preferred embodiment, the positive copper bar and the negative copper bar are bent downward in the area where the mounting hole 42 is located to form a sinking area 43. The bending area between the sinking area 43 of the positive copper bar and the negative copper bar and the non-sinking area is 50 to 70 degrees with the vertical direction. This design, on the one hand, facilitates the installation of the bolts, and on the other hand, reduces the contact between the copper bar 4 and the top surface of the battery 3, avoiding the heating of the battery 3 affecting the copper bar 4.

[0046] The total positive connection part of the positive copper busbar and the total negative connection part of the negative copper busbar are each provided with a connection hole 44. The total connection part 41 serves as the input and output end of the entire energy storage pack, and the connection hole 44 serves as a connection hole for external power lines. One end of the total connection part 41 of the copper busbar 4 passes through one side of the cover plate 2, so that the total connection part 41 is located on the outside of the cover plate 2.

[0047] like Figures 1 to 4 As shown, the energy storage Pack is provided with a panel 6 for covering and protecting the total positive wiring part and the total negative wiring part on the side where the total positive wiring part and the total negative wiring part are located. The panel 6 is provided with a plug-in pin 61, and the base 1 and the cover plate 2 are correspondingly provided with a plug-in interface. The side of the base 1 is provided with a plug-in interface 15, and the side of the cover plate 2 is provided with a plug-in interface 24. It is fixed in the form of a buckle to ensure a neat appearance and provide safety protection. During installation, the plug-in pin 61 is inserted into the plug-in interface of the base 1 and the cover plate 2. After installation, there is enough space between the main plate surface of the panel 6 and the battery 3, the base 1 and the cover plate 2 for wiring. At the same time, this space can also be used as a heat dissipation duct to improve the heat dissipation effect.

[0048] The two sides of the long side of the base 1 are respectively provided with a concave surface 13 and a convex surface 14 for cooperation when two energy storage packs are combined. When the energy storage packs are combined, the long sides of the base 1 between adjacent energy storage packs are pressed against each other, and the concave surface 13 and the convex surface 14 at the pressed position cooperate, which can effectively prevent the energy storage pack from shaking during transportation, and also make the energy storage pack more firm after assembly.

[0049] The cover plate 2 and the base 1 of the present application are both made of SMC material (sheet molding compound). The energy storage pack is made of SMC material. On the one hand, the strength of the pack is guaranteed and transportation is convenient; on the other hand, the material can insulate the battery to prevent battery leakage from affecting other batteries or short circuiting.

Claims

1. An energy storage Pack, characterized in that: It includes a bottom bracket and a cover plate, a plurality of batteries are placed between the bottom bracket and the cover plate, the batteries are arranged in a row, the top surface of each battery has a positive terminal and a negative terminal, the positive terminals in each battery are arranged in a row and connected by a positive copper busbar, and the negative terminals in each battery are arranged in a row and connected by a negative copper busbar; One end of the positive copper bar and the negative copper bar extends from one side of the cover plate to serve as a total positive connection portion and a total negative connection portion; The bottom bracket and the cover plate are connected and fixed by a plurality of threaded rods.

2. The energy storage Pack according to claim 1, characterized in that: The edge of the base has a screw hole, and the bottom of the threaded rod has a threaded portion that cooperates with the screw hole; the edge of the cover plate has a connecting countersunk hole, and the top of the threaded rod has a screw head that cooperates with the connecting countersunk hole. When fixed, the screw head is located in the connecting countersunk hole.

3. The energy storage Pack according to claim 1, characterized in that: The positive copper bar and the negative copper bar are embedded in the cover plate, and mounting holes are provided at the positions of the positive copper bar and the negative copper bar corresponding to the positive terminal or the negative terminal, and the positive copper bar or the negative copper bar is fixed to the positive terminal or the negative terminal by bolts passing through the mounting holes; The cover plate is provided with an avoidance groove for avoiding the positive copper bar and the negative copper bar and facilitating the installation of the bolts.

4. The energy storage Pack according to claim 3, characterized in that: The positive electrode copper bar and the negative electrode copper bar are bent downward in the area where the mounting hole is located to form a sinking area.

5. The energy storage Pack according to claim 4, characterized in that: The bending area between the sinking area and the non-sinking area of ​​the positive copper bar and the negative copper bar is 50 to 70 degrees with the vertical direction.

6. The energy storage Pack according to claim 1, characterized in that: The total positive connection part of the positive copper busbar and the total negative connection part of the negative copper busbar are each provided with a connection hole.

7. The energy storage Pack according to claim 1, characterized in that: The energy storage pack is provided with a panel for covering and protecting the total positive wiring part and the total negative wiring part on one side where the total positive wiring part and the total negative wiring part are located.

8. The energy storage Pack according to claim 7, characterized in that: The panel is provided with plug-in pins, and the base and the cover are correspondingly provided with plug-in ports. During installation, the plug-in pins are inserted into the plug-in ports.

9. The energy storage Pack according to claim 1, characterized in that: The top surface of the bottom bracket has limiting grooves for limiting the position of the battery, and a battery is placed in each limiting groove; The bottom edge of the cover plate is provided with a circle of limiting convex edges, and the battery is located inside the limiting convex edges.

10. The energy storage Pack according to claim 1, characterized in that: The two sides of the long side of the base are respectively provided with a concave surface and a convex surface for mutual cooperation when two energy storage packs are combined.

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