CN216563404U - Battery pack - Google Patents

Abstract

The present invention provides a battery pack, including: the module assembly is arranged in the box body, the support is connected with the upper end of the module assembly, the partition is connected with the support, the main control board is connected with the partition, and the partition is located between the support and the main control board. The partition board is provided with a plurality of first buckles and a plurality of second buckles, the main control board is connected with the partition board through the first buckles, and the partition board is connected with the support through the second buckles. The utility model provides a battery pack which is used for at least improving the installation safety of a main control board.

Description

Battery pack

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery pack.

Background

In recent years, the market share of new energy automobiles is continuously increased, batteries are taken as driving units of the new energy automobiles, and attention of related enterprises is paid to research, and the battery pack has the advantages of light weight and long service life, so that the battery pack is more important to be applied to an automobile start-stop system.

The main control board is the control center of battery package, monitors the user state of battery package, and in current battery package, directly pass through the screw connection with the main control board on the support usually, there is the potential safety hazard, and the urgent need improves.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery pack which is used for at least improving the installation safety of a main control board.

In order to achieve the above object, the present invention provides a battery pack including: the box, module assembly, support, baffle and main control board, the module assembly sets up in the box, the support with the upper end of module assembly is connected, the baffle with leg joint, the main control board with the baffle is connected, just the baffle is located the support with between the main control board.

The utility model provides a battery pack, wherein the partition plate is arranged between the support and the main control board, the partition plate has an effective isolation effect, the insulation effect between the support and the main control board is increased, and the installation safety of the main control board is improved, so that the safety of the battery pack is improved.

In a possible implementation manner, the partition board has a plurality of first buckles and a plurality of second buckles, the main control board is connected with the partition board through the first buckles, and the partition board is connected with the bracket through the second buckles.

In a possible implementation manner, a first limiting groove is formed in a surface of the partition board, which faces away from the bracket, a plurality of baffles are arranged at the edge of the first limiting groove, the main control board is located in the first limiting groove, and the baffles abut against the main control board.

In a possible implementation manner, a notch is formed in the baffle, and the first buckle is connected in the notch.

In a possible implementation manner, the first buckle includes an extending portion and a first claw portion, the extending portion is connected with the bottom wall of the notch, a distance is provided between the extending portion and two side walls of the notch, the first claw portion is connected to one end of the extending portion, which faces away from the bottom wall of the notch, and is located on the upper side of the main control board, and a gap between the first claw portion and the main control board is 0.1 mm-0.5 mm.

In a possible implementation manner, the partition board is further provided with a plurality of openings, and the plurality of second fasteners are correspondingly arranged in the plurality of openings one by one.

In a possible implementation manner, the second buckle includes a first connection section, a second connection section, and a second claw portion, which are connected in sequence, one end of the first connection section is connected to an inner wall of the opening, the second connection section extends toward a direction close to the support, a connection plate is disposed on the support, a connection hole is formed in the connection plate, and the second claw portion extends into the connection hole and is fastened to a side wall of the connection hole.

In a possible implementation manner, the second connecting section and the first connecting section have an included angle therebetween, the first connecting section is parallel to the bottom wall of the partition board, and a through groove is formed between two sides of the first connecting section and the inner wall of the opening.

In a possible implementation manner, a second limiting groove and a rib plate located at the edge of the second limiting groove are further arranged on the partition plate, a lead line is arranged in the second limiting groove, and the lead line is abutted to the rib plate.

In a possible implementation manner, a through hole is further formed in the partition plate, and a lead connected to the module assembly extends to the upper side of the partition plate through the through hole and is electrically connected to the main control board.

In a possible implementation mode, the box body comprises a bottom shell and an upper cover buckled at the upper end of the bottom shell, the upper cover is covered on the partition plate, and a pair of terminals is connected to the upper cover.

In one possible implementation, the pair of terminals are electrically connected to the main control board through the lead rows, respectively.

According to the battery pack provided by the utility model, the main control board is connected with the partition board through the first buckle, and the partition board is connected with the bracket through the second buckle, so that the connection among the main control board, the partition board and the bracket is facilitated.

According to the battery pack provided by the utility model, the baffle is arranged to play a role in limiting the main control board, and the first buckle is arranged to play a role in fixing the main control board, so that the main control board is stably fixed on the partition board.

According to the battery pack provided by the utility model, the through groove is formed between the two sides of the first connecting section and the inner wall of the opening, so that the effect of elastic deformation of the second buckle is increased, the second claw part is conveniently extended into the connecting hole, and the effect of connecting the bracket and the partition plate is realized.

In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions, other technical problems solved by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description of the embodiments.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded schematic view of a battery pack according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a battery pack according to an embodiment of the present invention;

fig. 3 is an exploded view of a bracket, a partition plate and a lead row of a battery pack according to an embodiment of the present invention;

fig. 4 is a schematic view of an assembly structure of a bracket, a partition plate and a lead row of a battery pack according to an embodiment of the present invention;

fig. 5 is a top view of a main control board of a battery pack according to an embodiment of the present invention;

fig. 6 is a schematic perspective view illustrating a separator of a battery pack according to an embodiment of the present invention;

fig. 7 is a front view of a separator of a battery pack according to an embodiment of the present invention;

fig. 8 is a front view of a main control board of a battery pack according to an embodiment of the present invention;

fig. 9 is a plan view of a separator of a battery pack according to an embodiment of the present invention;

fig. 10 is an enlarged view of the structure at a of fig. 4 of the battery pack according to the embodiment of the present invention;

fig. 11 is an enlarged view of a structure at B in fig. 6 of a battery pack according to an embodiment of the present invention;

fig. 12 is a cross-sectional view of the battery pack of fig. 9, taken along the line C-C of fig. 9;

fig. 13 is an enlarged view of the structure at D in fig. 12 of the battery pack according to the embodiment of the present invention;

fig. 14 is a front view of a battery pack according to an embodiment of the present invention.

Description of reference numerals:

10-a box body;

11-a bottom shell;

12-upper cover;

13-a terminal;

20-a module assembly;

30-a scaffold;

31-a connecting plate;

311-connecting hole;

32-fixed columns;

40-a separator;

41-a baffle plate;

411-notch;

42-a first buckle;

421-an extension;

422-a first jaw portion;

43-opening;

44-a first restraint slot;

45-a second buckle;

451-a first connecting segment;

452-a second connection segment;

453-second jaw;

46-a second limit groove;

47-through groove;

48-a through hole;

49-rib plate;

50-a main control board;

60-lead row;

61-thread sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In current battery package structure, directly pass through the screw connection with the main control board on the support usually, have the hidden danger of security, in production equipment and dismantlement maintenance process, all need twist the action of screw to also there is the screw and transfer into the inside risk of battery package, consequently, the urgent need is to make the improvement to the mounting structure of main control board in the battery package, simplifies the assembly degree of difficulty, improves the packaging efficiency.

In view of the above background, according to the battery pack provided by the utility model, the partition plate is arranged between the bracket and the main control board, the connection between the partition plate and the bracket is realized in a buckling connection manner, and the connection between the main control board and the partition plate is also realized in a buckling connection manner, so that the assembly process of the battery pack is simplified, and the assembly efficiency of the battery pack is improved.

A battery pack provided by an embodiment of the present invention is described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the present invention provides a liquid crystal display device including: the module assembly 20 is arranged in the box body 10, the support 30 is connected with the upper end of the module assembly 20, the partition plate 40 is connected with the support 30, the main control board 50 is connected with the partition plate 40, and the partition plate 40 is positioned between the support 30 and the main control board 50.

According to the battery pack provided by the utility model, the partition plate 40 is arranged between the bracket 30 and the main control board 50, so that the partition plate 40 has an effective isolation effect, the insulation effect between the bracket 30 and the main control board 50 is increased, and the use safety is improved.

In a possible embodiment, the partition 40 has a plurality of first fasteners 42 and a plurality of second fasteners 45, the main control board 50 is connected to the partition 40 through the first fasteners 42, and the partition 40 is connected to the bracket 30 through the second fasteners 45.

According to the battery pack provided by the utility model, the main control board 50 is connected with the partition board 40 through the first buckle 42, and the partition board 40 is connected with the bracket 30 through the second buckle 45, so that the connection among the main control board 50, the partition board 40 and the bracket 30 is facilitated, compared with a mode of adopting screw connection, the action of screwing screws is avoided, the production and assembly are convenient, the assembly cost is low, the assembly efficiency can be greatly improved, the disassembly and maintenance are convenient, and the popularization and the application are convenient.

In one possible embodiment, the bracket 30 is made of plastic. The main control board 50 is a Battery Management System (BMS), and the main control board 50 is a control System for the Battery pack and monitors the usage status of the Battery pack.

In one possible embodiment, referring to fig. 1 and 2, the module assembly 20 includes a plurality of module cells, and the module assembly 20 is used for converting chemical energy into electrical energy. The module electric core adopted by the embodiment has the advantages of high integration degree, convenience for automatic production and higher product consistency and reliability.

In a possible implementation manner, referring to fig. 4 and fig. 6, a first limiting groove 44 is formed on a surface of the partition 40 facing away from the bracket 30, a plurality of blocking plates 41 are disposed at edges of the first limiting groove 44, the main control board 50 is located in the first limiting groove 44, and the blocking plates 41 abut against the main control board 50.

In a possible embodiment, the baffle 41 is provided with a notch 411, and the first buckle 42 is connected in the notch 411.

Referring to fig. 5 and 6, the plane of the baffle plate 41 is perpendicular to the plane of the partition plate 40, the baffle plate 41 is blocked around the main control plate 50, and the baffle plate 41 plays a role in limiting, so that the main control plate 50 is stably fixed on the partition plate 40.

In a possible implementation manner, as shown in fig. 7 and 8, the height H1 of the baffle plate 41 is higher than the thickness T of the main control plate 50, i.e., H1 > T, the height H1 of the baffle plate 41 may be 6mm to 9mm, the thickness T of the main control plate 50 may be 1mm to 2mm, for example, the height H1 of the baffle plate 41 may be 6mm, 7mm, 8mm or 9mm, and the thickness T of the main control plate 50 may be 1mm or 2 mm.

It is easy to understand that the notches 411 are through the baffle plates 41, and the number of the notches 411 formed on each baffle plate 41 can be flexibly set according to the use requirement.

In a possible implementation manner, referring to fig. 9, 12 and 13, the first buckle 42 includes an extending portion 421 and a first claw portion 422, the extending portion 421 and the bottom wall of the notch 411 are connected to each other, a space is provided between the extending portion 421 and both side walls of the notch 411, the first claw portion 422 is connected to one end of the extending portion 421, which faces away from the bottom wall of the notch 411, the first claw portion 422 is located on the upper side of the main control board 50, and the space between the first claw portion 422 and the main control board 50 is 0.1mm to 0.5 mm. It is easy to understand that, if the gap between the first claw 422 and the main control board 50 is too small, the first claw 422 abuts against the main control board 50, which easily causes uneven stress on the main control board 50 and damages the main control board 50, whereas if the gap between the first claw 422 and the main control board 50 is too large, the position of the main control board 50 cannot be well defined, and the main control board 50 is easily loosened.

In one possible embodiment, the gap between the first claw portion 422 and the main control plate 50 may be 0.1mm, 0.3mm, or 0.5 mm.

Referring to fig. 13, the first claw portion 422 has a triangular longitudinal section, and the protruding length H2 of the first claw portion 422 may be 0.2mm to 1mm, that is, the distance between the end of the first claw portion 422 away from the extending portion 421 and the extending portion 421 may be 0.2mm to 1 mm. For example, the protruding length H2 of the first jaw portion 422 may be 0.2mm, 0.5mm, or 1 mm.

The distance between the extending portion 421 and the two sidewalls of the notch 411 is greater than 0, so as to facilitate the elastic bending of the first buckle 42. The end of the first claw part 422, which is far away from the extension part 421, is provided with a chamfered surface, which is convenient for assembling the main control board 50 to abut against, and when the main control board 50 is assembled, the edge of the main control board 50 slides along the chamfered surface, which is convenient for the main control board 50 to be smoothly installed in the first limit groove 44.

Extension 421 supports at the edge of main control panel 50, and restriction main control panel 50 removes at first spacing groove 44 to, first claw 422 is used for restricting main control panel 50 to keeping away from the direction motion of baffle 40, through extension 421 and first claw 422, makes main control panel 50 by stable injecing in first spacing groove 44, and difficult not hard up avoids main control panel 50 drunkenness to shift.

In a possible implementation manner, referring to fig. 6 and 10, the partition plate 40 is further provided with a plurality of openings 43, and a plurality of second fasteners 45 are correspondingly arranged in the plurality of openings 43. To facilitate the connection of the bracket 30 to the partition 40, the second catch 45 may be provided at a corner position on the partition 40.

In a possible embodiment, the second buckle 45 includes a first connection section 451, a second connection section 452, and a second claw 453 connected in sequence, one end of the first connection section 451 is connected to an inner wall of the opening 43, the second connection section 452 extends toward a direction close to the bracket 30, the bracket 30 is provided with a connection plate 31, the connection plate 31 is provided with a connection hole 311 therein, and the second claw 453 extends into the connection hole 311 and is buckled with a side wall of the connection hole 311. The second claw 453 is engaged with the sidewall of the coupling hole 311, thereby coupling the bracket 30 to the partition 40.

The number of the connection plates 31 corresponds to the number of the second catches 45, and the positions of the connection plates 31 correspond to the positions of the second catches 45, so that the second claw portions 453 extend into the connection holes 311.

In a possible embodiment, the plane of the connection plate 31 is perpendicular to the plane of the support 30.

In a possible implementation manner, referring to fig. 10 and 11, an included angle is formed between the second connection section 452 and the first connection section 451, the first connection section 451 is parallel to the bottom wall of the partition board 40, and a through groove 47 is formed between two sides of the first connection section 451 and the inner wall of the opening 43, so that the effect of elastic deformation of the second buckle 45 is increased, the second claw 453 is conveniently extended into the connection hole 311, and the effect of connecting the bracket 30 and the partition board 40 is achieved.

In one possible implementation, the angle between the second connecting section 452 and the first connecting section 451 may be 90 °.

In a possible implementation manner, referring to fig. 4 and 6, a second limiting groove 46 and a rib 49 located at an edge of the second limiting groove 46 are further provided on a side of the partition 40 facing away from the bracket 30, a lead line 60 is disposed in the second limiting groove 46, and the lead line 60 abuts against the rib 49. The rib 49 serves to define the position of the lead row 60.

In a possible embodiment, the side of the partition 40 facing away from the support 30 has two second limiting grooves 46, and the two second limiting grooves 46 are respectively located at two opposite sides of the first limiting groove 44, so that the position is reasonable, and the assembly cost and the harness arranging cost can be reduced.

In one possible embodiment, the rib 49 may have a height of 1mm to 4mm and the rib 49 may have a thickness of 1mm to 3 mm. For example, the height of the rib 49 may be 1mm, 2mm, 3mm or 4mm, and the thickness of the rib 49 may be 1mm, 2mm or 3 mm.

In a possible embodiment, referring to fig. 1 and 6, the partition plate 40 is further provided with a through hole 48, and the wires connected to the module assembly 20 extend to the upper side of the partition plate 40 through the through hole 48 and are electrically connected to the main control board 50, which is beneficial to the arrangement of the wires.

In one possible embodiment, one end of the wire may be electrically connected to the main control board 50 through the harness connector, and the size of the through hole 48 is 1mm to 3mm larger than that of the harness connector, so that the wire connected to the harness connector can pass through the through hole smoothly.

In one possible embodiment, the through hole 48 may be a kidney-shaped hole, and the length of the through hole 48 is 16mm and the width thereof is 10 mm. Of course, the through hole 48 may be a circular hole or a polygonal hole, and is not particularly limited herein.

In a possible implementation manner, the box 10 includes a bottom case 11 and an upper cover 12 buckled on the upper end of the bottom case 11, the upper cover 12 covers the partition 40, the upper cover 12 is connected with a pair of terminals 13, and the main control board 50 is connected with the upper cover 12 through screws, which is beneficial to improving the stability of the connection of the main control board 50.

In a possible implementation, referring to fig. 1 and 14, the bottom case 11 may be a rectangular box, the pair of terminals 13 connected to the upper cover 12 are electrically connected to the pair of lead rows 60, respectively, one of the pair of terminals 13 is a positive terminal, the other is a negative terminal, and the pair of terminals 13 serves as an output interface of the battery. Bottom shell 11 and upper cover 12 may be made of plastic, bottom shell 11 and upper cover 12 play an insulating protection role, and upper cover 12 may also provide a supporting role for lead bar 60.

In one possible embodiment, a pair of terminals 13 are electrically connected to the main control board 50 through lead rows 60, respectively. The pair of lead rows 60 may be connected to the main control board 50 by a fastener such as a rivet or a screw, one end of the pair of lead rows 60 is connected to the positive terminal and the negative terminal of the main control board 50, respectively, and referring to fig. 4 and 6, the pair of lead rows 60 are located in the two second limiting grooves 46, respectively.

In a possible embodiment, as shown in fig. 3 and 4, the side of the bracket 30 facing the partition 40 has fixing posts 32, and the side of the lead row 60 facing the bracket 30 has threaded sleeves 61 attached thereto, the threaded sleeves 61 extending into the fixing posts 32. The threaded sleeve 61 can be a hexagonal nut, the fixing column 32 can be a hexagonal pipe column matched with the threaded sleeve 61, and a hole for the threaded sleeve 61 to pass through is formed in the partition plate 40. Referring to fig. 1 and 3, a pair of terminals 13 connected to the upper cover 12 are screwed to the screw sleeve 61, and the pair of terminals 13 are electrically connected to the lead bar 60.

In one possible implementation, the lead line 60 may be a copper line or an aluminum line.

The utility model provides a battery pack, which is free from the action of fixing a screw in a buckling connection mode, can simplify the production process and improve the production efficiency. It should be noted that the numerical values and numerical ranges referred to in this application are approximate values, and there may be some error due to the manufacturing process, and the error may be considered to be negligible by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "top", "bottom", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential", and the like, are used to indicate an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the utility model and to simplify the description, and do not indicate or imply that the position or element referred to must have a particular orientation, be of particular construction and operation, and thus, are not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; either directly or indirectly through intervening media, such as through internal communication or through an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (12)

1. A battery pack, comprising: box (10), module assembly (20), support (30), baffle (40) and main control board (50), module assembly (20) set up in box (10), support (30) with the upper end of module assembly (20) is connected, baffle (40) with support (30) are connected, main control board (50) with baffle (40) are connected, just baffle (40) are located support (30) with between main control board (50).

2. The battery pack according to claim 1, wherein the separator (40) has a plurality of first snaps (42) and a plurality of second snaps (45), the main control board (50) is connected to the separator (40) through the first snaps (42), and the separator (40) is connected to the bracket (30) through the second snaps (45).

3. The battery pack according to claim 2, wherein a first limiting groove (44) is formed in a surface of the separator (40) facing away from the bracket (30), a plurality of baffles (41) are disposed at edges of the first limiting groove (44), the main control board (50) is located in the first limiting groove (44), and the baffles (41) abut against the main control board (50).

4. The battery pack according to claim 3, wherein the baffle (41) is provided with a notch (411), and the first buckle (42) is connected in the notch (411).

5. The battery pack according to claim 4, wherein the first latch (42) comprises an extending portion (421) and a first claw portion (422), the extending portion (421) is connected with the bottom wall of the notch (411), a distance is formed between the extending portion (421) and two side walls of the notch (411), the first claw portion (422) is connected to one end of the extending portion (421) facing away from the bottom wall of the notch (411), the first claw portion (422) is located on the upper side of the main control plate (50), and a gap between the first claw portion (422) and the main control plate (50) is 0.1 mm-0.5 mm.

6. The battery pack according to any one of claims 2 to 5, wherein the partition (40) is further provided with a plurality of openings (43), and the plurality of second fasteners (45) are correspondingly arranged in the plurality of openings (43) one by one.

7. The battery pack according to claim 6, wherein the second latch (45) comprises a first connecting section (451), a second connecting section (452) and a second claw portion (453) which are connected in sequence, one end of the first connecting section (451) is connected with the inner wall of the opening (43), the second connecting section (452) extends towards the direction close to the support (30), a connecting plate (31) is arranged on the support (30), a connecting hole (311) is formed in the connecting plate (31), and the second claw portion (453) extends into the connecting hole (311) and is fastened with the side wall of the connecting hole (311).

8. The battery pack according to claim 7, wherein the second connecting section (452) has an angle with the first connecting section (451), the first connecting section (451) is parallel to the bottom wall of the partition (40), and a through groove (47) is formed between both sides of the first connecting section (451) and the inner wall of the opening (43).

9. The battery pack according to any one of claims 1 to 5, wherein the separator (40) is further provided with a second limiting groove (46) and a rib plate (49) located at the edge of the second limiting groove (46), a lead row (60) is arranged in the second limiting groove (46), and the lead row (60) is abutted against the rib plate (49).

10. The battery pack according to any one of claims 1 to 5, wherein the partition plate (40) is further provided with a through hole (48), and the lead wires connected to the module assembly (20) extend to the upper side of the partition plate (40) through the through hole (48) and are electrically connected to the main control board (50).

11. The battery pack according to claim 9, wherein the case (10) includes a bottom case (11) and an upper cover (12) fastened to an upper end of the bottom case (11), the upper cover (12) is covered on the partition (40), and a pair of terminals (13) are connected to the upper cover (12).

12. The battery pack according to claim 11, wherein the pair of terminals (13) are electrically connected to the main control board (50) through the lead rows (60), respectively.

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