CN219937260U - Novel aluminum profile battery pack structure - Google Patents

Abstract

The utility model relates to a novel aluminum profile battery pack structure, which comprises an aluminum shell, a front end cover, a rear end cover, two groups of battery end seat plates respectively sleeved on the positive end and the negative end of a battery core, and two groups of oppositely arranged U-shaped bending plates; the two groups of U-shaped bending plates are coated on the two groups of battery terminal base plates, and a front baffle and a rear baffle which can be abutted against the U-shaped bending plates and the battery terminal base plates and connected with the U-shaped bending plates are arranged between the two groups of U-shaped bending plates; the aluminum shell is sleeved on the two groups of U-shaped bending plates; one side of the front baffle is provided with a plurality of upright posts, the front end cover is connected with the end parts of the upright posts, the rear end cover is connected with the rear baffle, and the front end cover and the rear end cover are connected with the two ends of the aluminum shell; the front end cover is provided with a PCBA plate, and a gap is reserved between the PCBA plate and the front baffle plate. The utility model provides a novel aluminum profile battery pack structure, which solves the problems that screw holes are formed on the surface of the existing aluminum profile shell everywhere to influence the overall appearance and the battery module inside the aluminum profile shell is easy to shake.

Description

Novel aluminum profile battery pack structure

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a novel aluminum profile battery pack structure.

Background

The battery pack shell commonly seen in the market at present is mostly of a sheet metal structure, the deformation tolerance of the processing size is difficult to control, the weight of the steel shell is excessively large in the whole proportion, the consistency of the aluminum shell is good, the weight is light, the integral forming structure strength is more stable, the appearance is attractive, and the battery pack shell is a good selection direction of various battery pack shells.

The battery module has various shapes, the flexibility of processing the shell adaptation module by using metal plates is higher in the market, the integrated aluminum profile has no fixed hole site, how to fix the module is a difficulty to consider, and the screw hole site is opened everywhere on the surface of the existing aluminum profile shell to influence the overall appearance. Meanwhile, in a closed narrow shell space, heat dissipation of the battery cell and the PCBA is another difficulty to consider.

Therefore, the utility model provides a novel aluminum profile battery pack structure, which can realize the stable fixation of the integrated aluminum profile shell without holes on the surface of the shell and the battery module, not only can not influence the overall appearance of the aluminum profile shell, but also has good heat dissipation property.

Disclosure of Invention

The utility model overcomes the defects of the prior art, provides a novel aluminum profile battery pack structure, and solves the problems that the whole appearance is influenced by opening screw holes on the surface of the existing aluminum profile shell everywhere and the battery module inside the aluminum profile shell is easy to shake.

In order to achieve the above purpose, the utility model adopts the following technical scheme: novel aluminium alloy group battery structure, its characterized in that: the battery terminal plate comprises an aluminum shell, a front end cover, a rear end cover, two groups of battery terminal seat plates respectively sleeved on the positive terminal and the negative terminal of the battery core, and two groups of U-shaped bending plates oppositely arranged;

the ends of the two groups of U-shaped bending plates are butted to form a frame body structure to cover one sides of the two groups of battery terminal base plates far away from the battery core, and a front baffle and a rear baffle which can be abutted against the U-shaped bending plates and the battery terminal base plates and connected with the U-shaped bending plates are arranged between the two groups of U-shaped bending plates;

the aluminum-type shell is sleeved on the two groups of U-shaped bending plates;

the front baffle plate is provided with a plurality of upright posts at one side far away from the battery terminal plate, the front end cover is abutted against and connected with the end parts of the upright posts, the rear end cover is abutted against and connected with one side far away from the front end cover, and one side of the front end cover and the rear end cover, which faces towards the U-shaped bending plate, are abutted against and connected with the two ends of the aluminum shell;

the front end cover is provided with the PCBA board towards one side of front bezel, one side of PCBA board with the front end cover laminating, leave the clearance between PCBA board and the front bezel.

In a preferred embodiment of the utility model, rib positions are arranged at corners on the inner side of the aluminum shell, profile grooves are formed in two opposite sides of the periphery of the aluminum shell, two groups of U-shaped bending plates are embedded between two adjacent rib positions and are attached to the inner side of the aluminum shell, and a gap is reserved between the two groups of U-shaped bending plates and one side, close to the profile grooves, of the aluminum shell.

In a preferred embodiment of the utility model, a plurality of groups of limiting blocks for preventing the electric core from shifting are arranged on the battery terminal seat plate at equal intervals, a plurality of metal connecting sheets capable of being sleeved on the plurality of groups of limiting blocks are arranged on the battery terminal seat plate and used for connecting a plurality of electric cores in series or in parallel, and one end of each metal connecting sheet is electrically connected with the PCBA plate.

In a preferred embodiment of the utility model, two side support plates are arranged between two groups of battery end base plates, and the side support plates, the battery end base plates, the upright posts, the front baffle, the rear baffle and the U-shaped bending plates are all made of insulating materials.

In a preferred embodiment of the utility model, the front end cover and the rear end cover are both connected with the rib position on the inner side of the aluminum shell, one end of the two groups of U-shaped bending plates, which faces the front end cover, is provided with a notch, and one end of the front end cover, which faces the U-shaped bending plates, is embedded into the notch.

In a preferred embodiment of the utility model, the profile groove on the aluminum shell can be connected with the handle through a T-shaped nut.

In a preferred embodiment of the present utility model, a waterproof connector is disposed on the aluminum housing at a side close to the PCBA board.

The utility model solves the defects existing in the background technology, and has the beneficial effects that:

(1) The aluminum-type shell is integrally formed, no splicing welding seam exists on the surface of the aluminum-type shell, no hole sites (except the front end cover and the rear end cover) exist on the surface of the aluminum-type shell, and the rib sites of the two end faces on the inner side of the aluminum-type shell can be matched with the front end cover and the rear end cover to be detached and installed. The profile groove integrally formed with the aluminum shell is formed in the side face of the aluminum shell, and the universal T-shaped nut is selected to be used as a groove position for fixing the handle, so that the aluminum shell can be detached when not in use;

(2) The battery pack is fixed in a mode of combining a front baffle plate and a rear baffle plate which are made of insulating materials with a U-shaped bending plate, insulating pieces are arranged around the battery pack to isolate the battery pack from the aluminum-shaped shell, and the U-shaped bending plate can be detached from the front baffle plate and the rear baffle plate and can be arranged in a heat dissipation space inside the aluminum-shaped shell; the front baffle is connected with the front end cover through the upright post, the rear baffle is connected with the rear end cover, and the front end cover, the rear end cover and the aluminum shell are matched for disassembly and assembly to connect the whole product into a whole;

(3) PCBA board lock attaches on the front end housing, and the front end housing is the aluminium material, increases thickness as the fin, and through heat conduction silica gel and PCBA board contact heat dissipation to and whole heat under the enclosure space can transfer to aluminium type shell on, dispel the heat through aluminium type shell's surface.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the overall structure in a preferred embodiment of the present utility model;

FIG. 2 is a schematic top view of FIG. 1 in a preferred embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of FIG. 2 at A-A in accordance with a preferred embodiment of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3 at B in a preferred embodiment of the utility model;

FIG. 5 is a schematic view of the explosive structure of FIG. 1 in a preferred embodiment of the present utility model;

FIG. 6 is a schematic view showing the structure of the battery terminal plate, the metal connecting sheet and the side support plate in combination according to the preferred embodiment of the present utility model;

FIG. 7 is an enlarged schematic view of the structure at C of FIG. 6 in accordance with a preferred embodiment of the present utility model;

FIG. 8 is a schematic view of the structure of the present utility model in which two sets of U-shaped bending plates, front baffle plate and rear baffle plate are sleeved outside the structure shown in FIG. 6;

FIG. 9 is a schematic view of an aluminum-type outer shell of the preferred embodiment of the present utility model, which is installed around the outside of the structure shown in FIG. 8;

FIG. 10 is an enlarged schematic view of the structure of FIG. 9 at D in a preferred embodiment of the utility model;

wherein, 1, an aluminum type shell; 2. a front end cover; 3. a rear end cover; 4. a battery terminal plate; 5. a U-shaped bending plate; 6. a front baffle; 7. a rear baffle; 8. a column; 9. PCBA board; 10. a metal connecting sheet; 11. a side support plate; 12. a handle; 13. a waterproof joint; 101. a rib position; 102. a profile groove; 401. a limiting block; 501. notch.

Detailed Description

The utility model will now be described in further detail with reference to the drawings and examples, which are simplified schematic illustrations of the basic structure of the utility model, which are presented only by way of illustration, and thus show only the structures that are relevant to the utility model.

It should be noted that, if a directional indication (such as up, down, bottom, top, etc.) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship between the components, the movement situation, etc. in a certain specific posture, and if the specific posture is changed, the directional indication is correspondingly changed. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-10, a novel aluminum profile battery pack structure comprises an aluminum shell 1, a front end cover 2, a rear end cover 3, two groups of battery end seat plates 4 respectively sleeved on positive and negative end parts of a battery core and two groups of oppositely arranged U-shaped bending plates 5;

the ends of the two groups of U-shaped bending plates 5 are butted to form a frame structure to cover one sides of the two groups of battery end base plates 4 far away from the battery core, and a front baffle 6 and a rear baffle 7 which can be abutted against the U-shaped bending plates 5 and the battery end base plates 4 and connected with the U-shaped bending plates 5 are arranged between the two groups of U-shaped bending plates 5;

the aluminum shell 1 is sleeved on two groups of U-shaped bending plates 5;

a plurality of stand columns 8 are arranged on one side of the front baffle 6, which is far away from the battery terminal board 4, the front end cover 2 is abutted against and connected with the end parts of the plurality of stand columns 8, the rear end cover 3 is abutted against and connected with one side of the rear baffle 7, which is far away from the front end cover 2, and one side of the front end cover 2 and the rear end cover 3, which faces towards the U-shaped bending plate 5, are abutted against and connected with two ends of the aluminum shell 1;

the front end cover 2 is provided with PCBA board 9 towards the one side of preceding baffle 6, and one side and the front end cover 2 laminating of PCBA board 9 leave the clearance between PCBA board 9 and the preceding baffle 6.

Specifically, through respectively embedding the positive and negative terminal parts of the battery cell on the battery terminal seat board 4, not only the installation of the battery cell is convenient, but also the distance between a plurality of battery cells can be controlled simultaneously, so that gaps exist between the battery cells, and gaps are reserved between the PCBA board 9 and the front baffle 6, so that the diffusion of heat in the aluminum-type shell 1 can be facilitated. Simultaneously before laminating PCBA board 9 and front end housing 2, can be through scribbling heat conduction silica gel on the contact surface of PCBA board 9 and front end housing 2 to conveniently conduct the heat dissipation through front end housing 2 to PCBA board 9. And for convenience with a plurality of electric core series connection or parallelly connected together, the interval is the same on the battery terminal board 4 be provided with a plurality of groups of stopper 401 that are used for preventing the electric core aversion, be provided with a plurality of metal connection piece 10 that can overlap and establish on a plurality of groups of stopper 401 on the battery terminal board 4, be used for establishing a plurality of electric core in series or parallelly connected, the one end and the PCBA board 9 electric connection of metal connection piece 10, stopper 401 not only can effectively restrict the electric core between two groups of battery terminal boards 4, simultaneously can also prevent that metal connection piece 10 from shifting, guarantee the electric connection between a plurality of electric core and the PCBA board 9.

Further, as shown in fig. 5 and 8, after the two sets of battery terminal base plates 4 are sleeved on the positive and negative terminal portions of the battery core, the ends of the two sets of U-shaped bending plates 5 are butt-jointed and coated on the battery terminal base plates 4, and two side support plates 11 are arranged between the two sets of battery terminal base plates 4. At the same time, a notch 501 is arranged at one end of the two groups of U-shaped bending plates 5 facing the front end cover 2, and one end of the front end cover 2 facing the U-shaped bending plates 5 is embedded into the notch 501. After the two groups of U-shaped bending plates 5 and the front baffle 6 and the rear baffle 7 which can be abutted against by the battery end seat plate 4 are fixedly connected, the two groups of U-shaped bending plates 5, the front baffle 6 and the rear baffle 7 can be surrounded to form a stable box frame structure, and meanwhile, as the side support plates 11, the battery end seat plate 4, the upright posts 8, the front baffle 6, the rear baffle 7 and the U-shaped bending plates 5 are made of insulating materials, the two groups of U-shaped bending plates 5, the front baffle 6 and the rear baffle 7 are fixedly connected, so that the overall structural stability of the battery core module is better, and meanwhile, the insulating effect can be achieved.

Further, after the fixing of the battery core module is completed, as shown in fig. 3, 4 and 9, the aluminum-shaped casing 1 can be sleeved on the periphery of the box frame structure formed by the two groups of U-shaped bending plates 5, the front baffle 6 and the rear baffle 7, in this process, as the corner of the inner side of the aluminum-shaped casing 1 is provided with the rib positions 101, the two groups of U-shaped bending plates 5 are embedded between two adjacent rib positions 101 and are attached to the inner side of the aluminum-shaped casing 1, and a gap is reserved between the two groups of U-shaped bending plates 5 and one side of the aluminum-shaped casing 1, which is close to the profile groove 102. The strength of the whole aluminum shell 1 can be increased by the rib 101, the U-shaped bending plate 5, the front baffle 6 and the rear baffle 7 form a box frame structure which is not easy to shake when a gap is reserved in the aluminum shell 1, and the stability of the battery cell module is further guaranteed.

Further, as shown in fig. 1, 2 and 5, after the preliminary assembly is completed, the front end cover 2 and the rear end cover 3 are connected with the rib 101 on the inner side of the aluminum-type casing 1, the front end cover 2 abuts against and is connected with the end parts of the plurality of upright posts 8, the rear end cover 3 abuts against and is connected with one side of the rear baffle 7, which is far away from the front end cover 2, after the fixation is completed, a box structure with good sealing performance is formed by surrounding the front end cover 2, the rear end cover 3 and the aluminum-type casing 1, so that a plurality of battery cells can be firmly stored in the box, and meanwhile, the structure has good sealing performance.

In this embodiment, for convenience of use, two opposite sides on the periphery of the aluminum shell 1 are provided with profile grooves 102, the profile grooves 102 on the aluminum shell 1 can be connected with the handle 12 through T-nuts, the handle 12 can be installed under the condition of avoiding holes through the profile grooves 102 on the aluminum shell 1, and meanwhile, auxiliary facilities such as universal wheels and brackets can be installed through the profile grooves 102, so that convenience is brought to different practical application situations. In order to avoid rainwater from penetrating into the aluminum shell 1, a waterproof joint 13 is arranged on one side, close to the PCBA plate 9, of the aluminum shell 1, and a waterproof groove or a rubber pad and the like can be added at the joint before the front end cover 2, the aluminum shell 1, the rear end cover 3 and the aluminum shell 1 are fixed, so that the tightness of the structure is further ensured.

Working principle: by adopting the integrally formed aluminum shell 1 and connecting the front end cover 2 and the rear end cover 3 with the rib 101 on the inner side of the aluminum shell 1, after the installation is completed, the aluminum shell 1 has no visible hole site on the appearance, and the aesthetic property is improved. Meanwhile, on the structure for fixing the battery cell module, the positive and negative ends of the battery cell are respectively embedded into the battery terminal seat board 4, the displacement of the battery cell is limited by the limiting block 401 on the battery terminal seat board 4, and the battery terminal seat board 4 is covered by a box frame structure formed by surrounding two groups of U-shaped bending boards 5, a front baffle 6 and a rear baffle 7, so that the battery terminal seat board 4 can form a stable structure after being fixed. Finally, the aluminum shell 1 is sleeved and then is connected with the whole structure through the front end cover 2 and the rear end cover 3, so that stable fixation of the aluminum shell 1 with the battery module without holes on the surface can be realized, meanwhile, a gap reserved in the aluminum shell 1 and heat conduction of the front end cover 2 and the PCBA plate 9 are in contact, the whole appearance of the aluminum shell 1 is not affected, and meanwhile, good heat dissipation performance is achieved.

The above-described preferred embodiments according to the present utility model are intended to suggest that, from the above description, various changes and modifications can be made by the person skilled in the art without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (7)

1. Novel aluminium alloy group battery structure, its characterized in that: the battery pack comprises an aluminum shell (1), a front end cover (2), a rear end cover (3), two groups of battery terminal seat plates (4) respectively sleeved on the positive end and the negative end of a battery cell, and two groups of U-shaped bending plates (5) oppositely arranged;

the ends of the two groups of U-shaped bending plates (5) are in butt joint to form a frame structure, the frame structure is coated on one side, far away from the battery core, of the two groups of battery end base plates (4), and a front baffle (6) and a rear baffle (7) which can be abutted against the U-shaped bending plates (5) and the battery end base plates (4) and connected with the U-shaped bending plates (5) are arranged between the two groups of U-shaped bending plates (5);

the aluminum-type shell (1) is sleeved on two groups of U-shaped bending plates (5);

a plurality of stand columns (8) are arranged on one side, far away from the battery end seat board (4), of the front baffle (6), the front end cover (2) is abutted against and connected with the end parts of the plurality of stand columns (8), the rear end cover (3) is abutted against and connected with one side, far away from the front end cover (2), of the rear baffle (7), and one side, facing the U-shaped bending plate (5), of the front end cover (2) and the rear end cover (3) is abutted against and connected with two ends of the aluminum shell (1);

the front end cover (2) is provided with PCBA board (9) towards one side of front bezel (6), one side of PCBA board (9) with front end cover (2) laminating, leave the clearance between PCBA board (9) and front bezel (6).

2. The novel aluminum profile battery pack structure according to claim 1, wherein: the aluminum shell (1) is characterized in that rib positions (101) are arranged at corners of the inner side of the aluminum shell (1), profile grooves (102) are formed in two opposite sides of the periphery of the aluminum shell (1), two groups of U-shaped bending plates (5) are embedded between two adjacent rib positions (101) and are attached to the inner side of the aluminum shell (1), and a gap is reserved between one side, close to the profile grooves (102), of each U-shaped bending plate (5) and each aluminum shell (1).

3. The novel aluminum profile battery pack structure according to claim 1, wherein: the battery terminal board (4) is provided with a plurality of groups of limiting blocks (401) which are used for preventing the battery cells from shifting at equal intervals, the battery terminal board (4) is provided with a plurality of metal connecting sheets (10) which can be sleeved on the limiting blocks (401) and are used for connecting a plurality of battery cells in series or in parallel, and one end of each metal connecting sheet (10) is electrically connected with the PCBA board (9).

4. The novel aluminum profile battery pack structure according to claim 1, wherein: two sets of battery terminal bedplate (4) between set up two side stand backup pads (11), side stand backup pad (11), battery terminal bedplate (4), stand (8), preceding baffle (6), backplate (7), U-shaped bent plate (5) are insulating material.

5. The novel aluminum profile battery pack structure according to claim 1, wherein: the novel aluminum shell is characterized in that the front end cover (2) and the rear end cover (3) are connected with rib positions (101) on the inner side of the aluminum shell (1), two groups of U-shaped bending plates (5) face one end of the front end cover (2) to be provided with a notch (501), and one end of the front end cover (2) faces the U-shaped bending plates (5) to be embedded into the notch (501).

6. The novel aluminum profile battery pack structure according to claim 1, wherein: the profile groove (102) on the aluminum shell (1) can be connected with the handle (12) through a T-shaped nut.

7. The novel aluminum profile battery pack structure according to claim 1, wherein: and a waterproof joint (13) is arranged on one side, close to the PCBA (9), of the aluminum shell (1).