Energy storage aluminum alloy battery box body

Abstract

The utility model discloses an energy storage aluminum alloy battery box, which relates to the technical field of new energy storage battery boxes and comprises a main shell, an upper cover, a cooling plate and a support. The water inlet assembly and the water outlet assembly penetrate through the side plates, and the two ends of the water inlet assembly and the two ends of the water outlet assembly extend to the exterior of the main shell and the cooling plate correspondingly. Cooling liquid enters the flow guide groove through the water inlet assembly and is discharged through the water outlet assembly to achieve circulating cooling of the battery pack. The main shell is made of an aluminum plate; the peripheral wall body of the main shell is punched and bent and is hermetically welded with the bottom wall body; the support is provided with a first supporting beam part and a second supporting beam part. The plurality of groups of support beam parts I are distributed between the two groups of support beam parts II at intervals; a protruding part is arranged on the first supporting beam part. The battery box body is made of aluminum alloy instead of steel, so that the weight of the box body is reduced, the energy density is improved, and a battery system is lighter; welding seams of the battery box body are reduced, and safety and reliability are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy storage battery boxes, in particular to an energy storage aluminum alloy battery box. Background Art

[0002] With the development trend of the new energy industry, especially the rapid development of new energy vehicles and energy storage power stations, the development of large-capacity energy storage batteries has become one of the important means. Traditional battery casings are mainly made of steel, which is widely used due to its high technical maturity and convenient processing. However, with the continuous improvement of the energy density requirements of battery systems, steel has become difficult to meet the demand due to its high mass density and heavy weight.

[0003] Therefore, in response to the problems existing in traditional new energy energy storage battery boxes, a device with optimized structure, reduced overall weight, reduced leakage risk, and enhanced safety and reliability is designed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an energy storage aluminum alloy battery box with optimized structure, reduced overall weight, reduced leakage risk, and enhanced safety and reliability.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] An energy storage aluminum alloy battery box includes a main shell, an upper cover is installed above the main shell, a cooling plate is installed below the main shell, a guide groove is opened on the cooling plate, a bracket is installed below the cooling plate, and reinforcing beams are installed at intervals inside the main shell. Side panels are installed on both sides and the bottom of one side of the reinforcing beam, and a water inlet fitting and a water outlet fitting are installed on the side panel located at the bottom of the reinforcing beam. The ends of the water inlet fitting and the water outlet fitting extend to the outside of the main shell and the cooling plate respectively. Coolant enters the guide groove through the water inlet fitting and is discharged through the water outlet fitting to achieve circulation cooling of the battery pack.

[0007] The main housing is made of aluminum plate;

[0008] The walls around the main shell are punched and bent and sealed and welded to the bottom wall;

[0009] The bracket has a first support beam and a second support beam;

[0010] The plurality of groups of support beam portions are spaced and distributed between the two groups of support beam portions;

[0011] A protrusion is provided on a portion of the support beam.

[0012] Furthermore, the main shell and the cooling plate are connected by laser welding.

[0013] Furthermore, the reinforcement beam is an extruded aluminum profile.

[0014] Furthermore, the bottom of the reinforcing beam and the main shell are connected by stir friction spot welding.

[0015] Furthermore, lifting holes are provided on the two parts of the support beam for lifting and transportation.

[0016] In the above technical solution, the utility model is an energy storage aluminum alloy battery box, which has the following

[0017] Beneficial effects:

[0018] 1. Replacing the battery box material from steel to aluminum alloy can reduce the overall weight of the box, which not only increases the energy density but also makes the battery system lighter;

[0019] 2. The main forming technologies of the aluminum plates in the battery box include stamping aluminum welding, extruded aluminum stir friction and casting, which reduce welds and enhance safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the explosion structure of an energy storage aluminum alloy battery box provided in an embodiment of the utility model;

[0022] Figure 2 A schematic structural diagram of a main shell in an energy storage aluminum alloy battery box provided by an embodiment of the present utility model;

[0023] Figure 3 A schematic diagram of the assembly structure of a main shell and a cooling plate in an energy storage aluminum alloy battery box provided in an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Main shell; 2. Upper cover; 3. Cooling plate; 4. Bracket; 5. Reinforcement beam; 6. Side panel;

[0026] 31. Diversion trough;

[0027] 41. Support beam part 1; 42. Support beam part 2;

[0028] 411, raised portion;

[0029] 421, lifting hole;

[0030] 71. Water inlet fitting; 72. Water outlet fitting. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] It should be noted that the terms "one side", "all around", "bottom", etc. used in this article indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for illustrative purposes, 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 cannot be understood as a limitation on the present invention; in addition, the terms "one part", "two parts", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] See also Figure 1-Figure 3 As shown;

[0034] An energy storage aluminum alloy battery box includes a main shell 1, an upper cover 2 is installed above the main shell 1, a cooling plate 3 is installed below the main shell 1, a guide groove 31 is opened on the cooling plate 3, a bracket 4 is installed below the cooling plate 3, and reinforcing beams 5 are installed at intervals inside the main shell 1. Side plates 6 are installed on both sides and the bottom of one side of the reinforcing beam 5, and a water inlet fitting 71 and a water outlet fitting 72 are installed on the side plate 6 at the bottom of the reinforcing beam 5. The ends of the water inlet fitting 71 and the water outlet fitting 72 extend to the outside of the main shell 1 and the cooling plate 3 respectively. Coolant enters the guide groove 31 through the water inlet fitting 71 and is discharged through the water outlet fitting 72 to achieve circulation cooling of the battery pack;

[0035] The main housing 1 is made of aluminum plate;

[0036] The walls of the main housing 1 are punched and bent and sealed and welded to the bottom wall;

[0037] The bracket 4 has a first support beam portion 41 and a second support beam portion 42;

[0038] Multiple groups of support beams 1 part 41 are spaced apart and distributed between two groups of support beams 2 part 42;

[0039] A protrusion 411 is provided on the support beam portion 41 .

[0040] The main housing 1 and the cooling plate 3 are connected by laser welding.

[0041] The reinforcement beam 5 is an extruded aluminum profile.

[0042] The bottom of the reinforcing beam 5 is connected to the main shell 1 by stir friction spot welding.

[0043] The second support beam portion 42 is provided with a lifting hole 421 for lifting and transporting.

[0044] Specifically, a storage aluminum alloy battery box, in terms of overall structure and process, the main shell 1 of the battery box is stamped and bent by aluminum plates, and the bent four corners are welded to the extruded profile to form a closed shell, which is more securely sealed; the cooling plate 3 is laser-welded to the main shell 1 to make the battery pack cool down faster; a reinforcing beam 5 of extruded aluminum profile is added to the main shell 1 to ensure the overall strength of the battery box; a protrusion 411 is added to the bottom bracket 4, and the protrusion 411 serves as a support point to improve the overall load-bearing capacity and strength; a steel lifting hole 421 is added to the second part 42 of the support beam, and a lifting rope can be connected in the lifting hole 421 during transportation to assist transportation; and the cooling plate 3 is connected to the main shell 1 by laser welding, and the reinforcing beam 5 is connected to the main shell 1 by stir friction spot welding to reduce the risk of battery box leakage.

[0045] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An energy storage aluminum alloy battery box, comprising a main shell (1), an upper cover (2) is installed above the main shell (1), a cooling plate (3) is installed below the main shell (1), a guide groove (31) is opened on the cooling plate (3), a bracket (4) is installed below the cooling plate (3), a reinforcing beam (5) is installed at intervals inside the main shell (1), side plates (6) are installed on both sides and the bottom of one side of the reinforcing beam (5), and a water inlet fitting (71) and a water outlet fitting (72) are installed on the side plate (6) located at the bottom of the reinforcing beam (5), the two ends of the water inlet fitting (71) and the water outlet fitting (72) respectively extend to the outside of the main shell (1) and the cooling plate (3), the coolant enters the guide groove (31) through the water inlet fitting (71) and is discharged through the water outlet fitting (72) to achieve circulation cooling of the battery pack, characterized in that: The main housing (1) is made of aluminum plate; The four walls of the main shell (1) are punched and bent and sealed and welded to the bottom wall; The bracket (4) comprises a first support beam (41) and a second support beam (42); Multiple groups of the support beam first portion (41) are spaced and distributed between two groups of the support beam second portion (42); A protrusion (411) is provided on a portion (41) of the support beam.

2. The energy storage aluminum alloy battery box according to claim 1, characterized in that: The main housing (1) and the cooling plate (3) are connected by laser welding.

3. The energy storage aluminum alloy battery box according to claim 1, characterized in that: The reinforcing beam (5) is an extruded aluminum profile.

4. The energy storage aluminum alloy battery box according to claim 1, characterized in that: The bottom of the reinforcing beam (5) and the main shell (1) are connected by stir friction spot welding.

5. The energy storage aluminum alloy battery box according to claim 1, characterized in that: The second support beam portion (42) is provided with a hoisting hole (421) for hoisting and transporting.

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