Battery pack structure

Abstract

The utility model relates to the technical field of batteries, in particular to a battery pack structure which is characterized by comprising a shell and a plurality of battery units, a frame used for fixing the battery units is arranged in the shell, a plurality of mounting grooves used for inserting the battery units are formed in the frame, and the battery units are horizontally arranged. The frame is located at the two ends of the plurality of battery units, the battery units are inserted into the mounting grooves, a BMS circuit board is further arranged at the top of the shell, a plurality of heat dissipation holes are further formed in the frame in a penetrating mode, a plurality of hollowed-out holes are formed in the shell, and the heat dissipation holes are located at the hollowed-out holes, so that the battery units are wrapped by the shell, and the anti-falling and anti-vibration effects are achieved on the battery units; and meanwhile, the battery pack can better dissipate heat due to the matched arrangement of the frame and the shell.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery pack structure. Background Art

[0002] Outdoor power supplies are often used in outings, camping and other occasions. They have ultra-large capacity and can provide power supply functions in the wild. The core component of outdoor power supplies is the battery pack for energy storage. The battery pack is composed of multiple battery cells connected in series and parallel. Most of the existing battery packs use a frame to fix multiple battery cells, and the battery cells are placed vertically, and then the battery cells are wrapped by an outer shell, resulting in poor air circulation inside the battery pack and poor heat dissipation. Utility Model Content

[0003] The purpose of the present application is to provide a battery pack structure, which wraps the battery unit by an outer shell to provide the battery unit with a drop-resistant and shock-resistant effect. At the same time, the coordinated arrangement of the frame and the outer shell enables the battery pack to dissipate heat better.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a battery pack structure, including a shell and a plurality of battery cells, the shell is provided with a frame for fixing the battery cells, the frame is provided with a plurality of mounting grooves for inserting the battery cells, the battery cells are placed horizontally, the frame is located at both ends of the plurality of battery cells, the battery cells are inserted in the mounting grooves, a BMS circuit board is also provided on the top of the shell, a plurality of heat dissipation holes are also penetrated on the frame, and a plurality of hollow holes are opened on the shell, wherein the heat dissipation holes are located at the hollow holes.

[0005] By adopting the above technical solution, the frame fixes several battery cells to each other in the outer shell, and the battery cells are placed horizontally, with both ends of the battery cells facing the sides of the outer shell, which is conducive to better protecting the battery cells, and the heat dissipation holes cooperate with the hollow holes, so that the battery pack can dissipate heat better, and the outer shell wraps the battery cells, which has a drop-proof and shock-resistant effect on the battery cells.

[0006] Preferably, the mounting grooves are arranged in a matrix on the frame, a through hole is provided at the center of the mounting groove, the diameter of the through hole is smaller than the diameter of the battery cell, the heat dissipation hole is located in the middle of the four mounting grooves, and a plurality of grooves are also provided on the outer surface of the frame.

[0007] By adopting the above scheme, the setting of the hole enables the mounting groove to fix the battery cell while further reducing the coverage of the frame on the battery cell, which is beneficial to improving its heat dissipation effect. The setting of the groove further reduces the coverage area of ​​the frame on the battery cell, which is beneficial to further improving the heat dissipation effect.

[0008] Preferably, the shell includes a chassis and an upper cover, the upper cover is covered on the chassis, the chassis and the upper cover are fixedly connected by bolts, and the interior of the chassis and the interior of the upper cover are both provided with protective layer plates, and the protective layer plates are used to cover the hollow holes at the bottom of the chassis and the top of the upper cover.

[0009] By adopting the above technical solution, the provision of the protective layer is beneficial to protecting the interior of the shell from water and dust.

[0010] Preferably, two support rods are provided at the bottom of the chassis, and the support rods are used to prop up the chassis.

[0011] By adopting the above solution, the support rods can prop up the chassis, which is helpful to isolate the external environment and better protect the battery pack.

[0012] Preferably, two handles are provided on both sides of the top of the upper cover, and the handles are integrally formed with the upper cover.

[0013] By adopting the above solution, the provision of the handle makes it more convenient to take and place the battery pack.

[0014] In summary, the beneficial technical effects of this application are:

[0015] The frame fixes several battery cells to each other in the outer shell, and the battery cells are placed horizontally with both ends of the battery cells facing the sides of the outer shell, which is conducive to better protecting the battery cells. The heat dissipation holes cooperate with the hollow holes, so that the battery pack can dissipate heat better, and the outer shell wraps the battery cells to provide resistance to falling and shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the battery pack in this application.

[0017] Figure 2 Schematic diagram of the structure of the battery unit in this embodiment.

[0018] Figure 3 It is a schematic diagram of the structure of the framework in this embodiment.

[0019] Figure 4 Schematic diagram of the structure of the housing in this embodiment.

[0020] Description of reference numerals:

[0021] 1. Shell; 2. Battery cell; 3. Frame; 4. Mounting slot; 5. BMS circuit board; 6. Heat dissipation hole; 7. Hollow hole; 8. Through hole; 9. Groove; 10. Chassis; 11. Upper cover; 12. Protective layer; 13. Support rod; 14. Handle. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0023] The present application discloses a 2500W battery pack structure, which is mainly used in outdoor mobile power supplies for storing and providing electrical energy, such as Figure 1-Figure 3 As shown, it specifically includes a shell 1 and a plurality of battery cells 2. A frame 3 for fixing the battery cells 2 is provided in the shell 1. The frame 3 is provided with a plurality of mounting grooves 4 for inserting the battery cells 2. The battery cells 2 are placed horizontally. The frame 3 is located at both ends of the plurality of battery cells 2. The battery cells 2 are inserted in the mounting grooves 4. A BMS circuit board 5 is also provided on the top of the shell 1. A plurality of heat dissipation holes 6 are also penetrated through the frame 3. A plurality of hollow holes 7 are opened on the shell 1, wherein the heat dissipation holes 6 are located at the hollow holes 7. The frame 3 fixes the plurality of battery cells 2 to each other in the shell 1, and the battery cells 2 are placed horizontally. The two ends of the battery cells 2 face the sides of the shell 1, which is conducive to better protecting the battery cells 2. The heat dissipation holes 6 cooperate with the hollow holes 7, so that the battery pack can dissipate heat better. In addition, the shell 1 wraps the battery cells 2, which has the effect of resisting falling and shock.

[0024] Specifically, Figure 2 and Figure 3 As shown, there are two groups of battery cells 2, each group has eight battery cells 2, and each group of battery cells 2 shares two frames 3. The battery cells 2 are interconnected by nickel sheets, and the mounting grooves 4 are arranged in a matrix on the frame 3, specifically two rows and four columns of mounting grooves 4. A through hole 8 is opened at the center of the mounting groove 4, and the diameter of the through hole 8 is smaller than the diameter of the battery cell 2. When the battery cell 2 is inserted into the mounting groove 4, the end of the battery cell 2 is abutted against the bottom of the mounting groove 4, and the side wall of the battery cell 2 is matched with the groove wall of the mounting groove 4. The heat dissipation hole 6 is located in the middle of the four mounting grooves 4. A plurality of grooves 9 are also opened on the outer surface of the frame 3. The setting of the through hole 8 enables the mounting groove 4 to fix the battery cell 2 while further reducing the coverage of the frame 3 on the battery cell 2, which is beneficial to improving its heat dissipation effect. The setting of the groove 9 further reduces the coverage area of ​​the frame 3 on the battery cell 2, which is beneficial to further improving the heat dissipation effect.

[0025] Furthermore, in this embodiment, if Figure 4As shown, the housing 1 includes a chassis 10 and an upper cover 11. The upper cover 11 covers the chassis 10. The chassis 10 and the upper cover 11 are fixedly connected by bolts. The side and top surfaces of the upper cover 11 and the chassis 10 are provided with hollow holes 7, so that the weight of the battery pack is lowered, lightweight design is met, and the energy density of the battery module and the system can be improved. The interior of the chassis 10 and the interior of the upper cover 11 are provided with a plurality of protective layer plates 12. The protective layer plates 12 are used to cover the hollow holes 7 at the bottom of the chassis 10 and the top of the upper cover 11. The protective layer plates 12 The setting is conducive to protecting the interior of the shell 1 from water and dust. Two support rods 13 are set at the bottom of the chassis 10. The support rods 13 are used to prop up the chassis 10. The setting of the support rods 13 can set up the chassis 10, which is conducive to isolating the external environment and better protecting the battery pack. Two handles 14 are set on both sides of the top of the upper cover 11. The handles 14 are integrally formed with the upper cover 11. The handles 14 are bent by the upper cover 11, and holes for grabbing are also opened on the handles 14. The setting of the handles 14 makes it more convenient to take and put the battery pack.

[0026] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above examples is only used to help understand the method and core idea of ​​the utility model; the above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above-mentioned technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A battery pack structure, characterized in that: The invention comprises a shell (1) and a plurality of battery cells (2), wherein the shell (1) is provided with a frame (3) for fixing the battery cells (2), the frame (3) is provided with a plurality of mounting grooves (4) for inserting the battery cells (2), the battery cells (2) are placed horizontally, the frame (3) is located at both ends of the plurality of battery cells (2), the battery cells (2) are inserted in the mounting grooves (4), a BMS circuit board (5) is also provided on the top of the shell (1), a plurality of heat dissipation holes (6) are also penetrated through the frame (3), and a plurality of hollow holes (7) are opened on the shell (1), wherein the heat dissipation holes (6) are located at the hollow holes (7).

2. A battery pack structure according to claim 1, characterized in that: The mounting grooves (4) are arranged in a matrix on the frame (3); a through hole (8) is provided at the center of the mounting groove (4); the diameter of the through hole (8) is smaller than the diameter of the battery unit (2); the heat dissipation hole (6) is located in the middle of the four mounting grooves (4); and a plurality of grooves (9) are provided on the outer side surface of the frame (3).

3. A battery pack structure according to claim 1, characterized in that: The housing (1) comprises a chassis (10) and an upper cover (11), wherein the upper cover (11) covers the chassis (10), and the chassis (10) and the upper cover (11) are fixedly connected by bolts. The interior of the chassis (10) and the interior of the upper cover (11) are both provided with a protective layer plate (12), and the protective layer plate (12) is used to cover the hollow holes (7) at the bottom of the chassis (10) and the top of the upper cover (11).

4. A battery pack structure according to claim 3, characterized in that: Two support rods (13) are arranged at the bottom of the chassis (10), and the support rods (13) are used to prop up the chassis (10).

5. A battery pack structure according to claim 3, characterized in that: Two handles (14) are provided on both sides of the top of the upper cover (11), and the handles (14) are integrally formed with the upper cover (11).

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