Novel energy storage structure battery pack

Abstract

The invention discloses a novel battery pack with an energy storage structure, which comprises a box body assembly, a battery pack and a battery pack, the supporting assembly is arranged near the middle of the box body assembly in the height direction, and the supporting assembly divides the box body into an upper-layer space and a lower-layer space; the upper-layer space is divided into an electrical chamber and a battery chamber; the battery modules are arranged in the lower-layer space and the battery chamber; the electrical assembly is mounted in the battery chamber; and the box cover covers the box body assembly. In a limited space, the energy storage capacity is increased as much as possible, and matching with the whole vehicle is not affected.

Description

Technical Field

[0001] The present invention belongs to the technical field of power batteries, and in particular relates to a battery pack with a novel energy storage structure. Background Art

[0002] In the process of implementing the present invention, the inventors found that the prior art has at least the following problems:

[0003] In the battery packs currently in use, the space occupied is limited, and single-layer modules are placed in a limited space, resulting in space waste.

[0004] CN117175112A - A lower shell of a battery pack, a heat-insulating battery pack and a battery pack assembly, discloses a lower shell of a battery pack, which is used to be mutually sleeved with a lower inner shell to form a lower shell of the battery pack, and the lower shell is used to cooperate with an upper cover to form a heat-insulating battery pack, characterized in that: the lower shell is made of a non-metallic composite material, including a lower shell body, and the bottom edge of the lower shell body is provided with an inwardly contracted step adapted to the bottom edge of the lower inner shell, and the above-mentioned technical problems cannot be solved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a new type of energy storage structure battery pack, which can maximize the energy storage capacity in a limited space without affecting the matching with the whole vehicle.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a new energy storage structure battery pack having:

[0007] A box assembly, which is a frame-shaped structure;

[0008] A support assembly is arranged near the middle of the box assembly in the height direction, and the support assembly divides the box into an upper space and a lower space; the upper space is divided into an electrical room and a battery room;

[0009] Battery modules, wherein the lower space and the battery chamber are provided with battery modules;

[0010] An electrical assembly installed in the battery room;

[0011] The box cover covers the box body assembly.

[0012] The support assembly comprises:

[0013] A support beam, with both ends mounted on the box assembly;

[0014] A support plate is mounted on the support beam, and the electrical assembly and battery module are mounted on the support plate.

[0015] The box assembly comprises:

[0016] The middle component is an integrated structure, including a bottom plate and side plates on both sides;

[0017] Left and right sealing plates are arranged on both sides of the middle component, and the left and right sealing plates are fixedly connected to the notches on both sides of the middle component;

[0018] Front and rear crossbeam assemblies, arranged at the bottom of the left and right sides of the middle assembly;

[0019] A fixed reinforcement beam is arranged at the bottom of the outer sides of the left and right sealing plates.

[0020] The support assembly also includes a support block, which is mounted on the box assembly through bolts; both ends of the support beam are mounted on the support block; and both ends of the support plate are mounted on the support beam.

[0021] Both ends of the support plate are provided with overlapped edges, and the overlapped edges are installed on the support beam.

[0022] The support plate is also provided with a BMS bracket, a relay bracket and a shunt bracket; the BMS bracket is tiltedly arranged in the electrical room.

[0023] The electrical assembly includes a BMS, an interface, a copper busbar and a relay. The BMS is installed on a BMS bracket, the relay is installed on a relay bracket, and the copper busbar connects the electrical assembly and the battery module.

[0024] A BMS bracket is also provided in the electrical room. The BMS bracket is tilted and a BMS is installed on the BMS bracket.

[0025] A heating film is provided on the bottom of the box assembly; a heating film is also provided on the support plate of the battery chamber.

[0026] A middle support member is also provided near the middle of the support beam, and the middle support member is connected to the box assembly by bolts.

[0027] One of the above technical solutions has the following advantages or beneficial effects: in a limited space, the energy storage capacity is increased as much as possible without affecting the matching with the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of a new energy storage structure battery pack provided in an embodiment of the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure of the new energy storage structure battery pack;

[0030] Figure 3 for Figure 1 Schematic diagram of the structure of the new energy storage structure battery pack;

[0031] Figure 4 for Figure 1 Schematic diagram of the structure of the new energy storage structure battery pack;

[0032] Figure 5 for Figure 1 Schematic diagram of the structure of the new energy storage structure battery pack;

[0033] Figure 6 for Figure 1 Schematic diagram of the structure of the new energy storage structure battery pack;

[0034] The marks in the above figure are:

[0035] 1. Box assembly, 101. Middle assembly, 102. Left and right sealing plates, 103. Fixed reinforcement beam;

[0036] 2. Front and rear beam components, 3. Battery modules,

[0037] 4. Support assembly, 401. Support plate, 402. Support beam, 403. Support block, 404. BMS bracket;

[0038] 5. Box cover,

[0039] 6. Electrical assembly, 601, BMS, 602, interface, 603, copper bus, 604, relay;

[0040] 7. Middle support,

[0041] 8. Heating film. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figures 1 to 6 , a new type of energy storage structure battery pack, with:

[0044] The box assembly 1 is a frame-shaped structure and is arranged at the lower part to accommodate and store the module electrical components.

[0045] The support assembly 4 is arranged near the middle of the height direction of the box assembly 1. The support assembly 4 divides the box into an upper space and a lower space; the upper space is divided into an electrical room and a battery room; it is arranged in the middle of the box to play a supporting and reinforcing role. The battery module 3 is provided in the lower space and the battery room; it is arranged inside the box, divided into upper and lower layers, to play an energy storage role. The electrical assembly 6 is installed in the battery room; it is arranged in the upper position of the box to play a supporting role for the module and electrical parts. The box cover 5 covers the box assembly 1. It is arranged at the top to play a sealing and protective role. By arranging in layers from top to bottom and in layers from left to right on the upper layer, the energy storage capacity can be increased as much as possible in a limited space without affecting the matching with the whole vehicle.

[0046] The support assembly 4 comprises: a support beam 402, both ends of which are mounted on the box assembly 1; a support plate 401, which is mounted on the support beam 402, and the electrical assembly 6 and the battery module 3 are mounted on the support plate 401. It plays the role of separating the box into two layers, upper and lower, and also plays the role of supporting the upper components.

[0047] The box assembly 1 has: a middle assembly 101, which is an integrated structure, including a bottom plate and side plates on both sides; the middle assembly 101 is formed by bending a whole plate, which is easy to process and has a good overall shape. Left and right sealing plates 102 are arranged on both sides of the middle assembly 101, and the left and right sealing plates 102 are fixedly connected to the notches on both sides of the middle assembly 101; the left and right sealing plates 102 close the notches at both ends of the middle assembly 101 to form a complete box structure. The front and rear crossbeam assemblies 2 are arranged at the bottom of the left and right sides of the middle assembly 101; they are arranged at both sides of the box to match and install the modules.

[0048] The fixed reinforcing beam 103 is arranged at the bottom of the outer sides of the left and right sealing plates 102. It is arranged at both sides of the box body to play a role in matching and fixing the whole vehicle.

[0049] The support assembly 4 also includes a support block 403, which is mounted on the box assembly 1 by bolts; both ends of the support beam 402 are mounted on the support block 403; and both ends of the support plate 401 are mounted on the support beam 402. The support block 403 is connected to the box, which is convenient to connect. The support beam 402 is then mounted on the support block 403, and the support plate 401 is then mounted on the support beam 402. The overall installation is convenient, easy to disassemble and assemble, and has good stability.

[0050] The two ends of the support plate 401 are provided with overlaps, which are installed on the support beam 402 to facilitate the connection between the support plate 401 and the support beam 402.

[0051] The support plate 401 is also provided with a BMS bracket 404, a relay 604 bracket and a shunt bracket; the BMS bracket 404 is tilted in the electrical room. The electrical assembly 6 includes a BMS, an interface, a copper bus 603 and a relay 604. The BMS is installed on the BMS bracket 404, the relay 604 is installed on the relay 604 bracket, and the copper bus 603 connects the electrical assembly 6 and the battery module 3. The electrical room is also provided with a BMS bracket 404, which is tilted and has a BMS installed on it. The electrical connection is realized.

[0052] A heating film 8 is provided at the bottom of the box assembly 1; a heating film 8 is also provided on the support plate 401 of the battery chamber, which heats the battery and improves the low-temperature reliability of the battery.

[0053] A middle support member 7 is also provided near the middle of the support beam 402, and the middle support member 7 is connected to the box assembly 1 by bolts, which plays a role of auxiliary support for the support beam 402 and prevents the support beam 402 from deformation.

[0054] Workflow:

[0055] First, weld the box body to the front and rear beam assemblies and the fixed reinforcement beam assembly. Under normal conditions, fix the module and box body to the front and rear beam assemblies with bolts. The support assembly and the second-layer support of the module are installed with the lower module. Then, install the electrical board assembly with the support assembly and the second-layer support of the module. Then, match and install the second-layer module with the electrical board assembly. Then integrate other electrical resources. Finally, match and install the box cover with the box body to obtain the battery pack assembly.

[0056] After adopting the above structure, the energy storage capacity can be increased as much as possible in a limited space without affecting the matching with the whole vehicle.

[0057] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of energy storage structure battery pack, characterized in that: have: A box assembly, which is a frame-shaped structure; A support assembly is arranged near the middle of the box assembly in the height direction, and the support assembly divides the box into an upper space and a lower space; the upper space is divided into an electrical room and a battery room; Battery modules, wherein the lower space and the battery chamber are provided with battery modules; An electrical assembly installed in the battery room; A box cover covers the box body assembly.

2. The novel energy storage structure battery pack according to claim 1, characterized in that: The support assembly comprises: A support beam, with both ends mounted on the box assembly; A support plate is mounted on the support beam, and the electrical assembly and battery module are mounted on the support plate.

3. The novel energy storage structure battery pack according to claim 2, characterized in that: The box assembly comprises: The middle component is an integrated structure, including a bottom plate and side plates on both sides; Left and right sealing plates are arranged on both sides of the middle component, and the left and right sealing plates are fixedly connected to the notches on both sides of the middle component; Front and rear crossbeam assemblies, arranged at the bottom of the left and right sides of the middle assembly; A fixed reinforcement beam is arranged at the bottom of the outer sides of the left and right sealing plates.

4. The novel energy storage structure battery pack as claimed in claim 3, characterized in that: The support assembly also includes a support block, which is mounted on the box assembly through bolts; both ends of the support beam are mounted on the support block; and both ends of the support plate are mounted on the support beam.

5. The novel energy storage structure battery pack according to claim 4, characterized in that: Both ends of the support plate are provided with overlapped edges, and the overlapped edges are installed on the support beam.

6. The novel energy storage structure battery pack according to claim 5, characterized in that: The support plate is also provided with a BMS bracket, a relay bracket and a shunt bracket; the BMS bracket is tiltedly arranged in the electrical room.

7. The novel energy storage structure battery pack according to claim 6, characterized in that: The electrical assembly includes a BMS, an interface, a copper busbar and a relay. The BMS is installed on a BMS bracket, the relay is installed on a relay bracket, and the copper busbar connects the electrical assembly and the battery module.

8. The novel energy storage structure battery pack according to claim 7, characterized in that: A BMS bracket is also provided in the electrical room. The BMS bracket is tilted and a BMS is installed on the BMS bracket.

9. The novel energy storage structure battery pack according to claim 8, characterized in that: A heating film is provided on the bottom of the box assembly; a heating film is also provided on the support plate of the battery chamber.

10. The novel energy storage structure battery pack according to claim 9, characterized in that: A middle support member is also provided near the middle of the support beam, and the middle support member is connected to the box assembly by bolts.

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