CN217009421U

CN217009421U - Casing and battery package

Info

Publication number: CN217009421U
Application number: CN202220259375.XU
Authority: CN
Inventors: 郭晓峰
Original assignee: Zhejiang Titan Machinery Co ltd
Current assignee: Zhejiang Titan Machinery Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-07-19
Anticipated expiration: 2032-01-25

Abstract

The utility model provides a shell and a battery pack, and relates to the technical field of power batteries. The shell comprises a shell body and a dustproof net, wherein the shell body is enclosed to form a cavity for accommodating the battery pack; the shell body is provided with heat dissipation holes; the dustproof net is detachably connected with the inner wall of the shell body and is covered with radiating holes; the dust screen is provided with a plurality of through holes, the area of each through hole is smaller than that of each heat dissipation hole, and the through holes are arranged at intervals in the length direction and/or the width direction of the dust screen and are communicated with the heat dissipation holes. The utility model improves the heat dissipation performance of the power battery.

Description

Casing and battery package

Technical Field

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

Background

The battery system is an indispensable part of both hybrid vehicles and pure electric vehicles. The battery performance and operating conditions directly affect the operating performance of the vehicle.

The pure electric vehicle requires a large number of batteries and has a limited loading space, and thus a battery pack is formed by closely arranging battery cells. When the electric vehicle runs under different working conditions, each battery unit in the battery pack can discharge at different rates, a large amount of heat is generated at different heat generation rates, and uneven heat accumulation can be generated along with time accumulation and space influence, so that the running environment temperature of the battery pack is unbalanced or the temperature of the battery pack is overhigh. If the whole battery pack cannot dissipate heat in time when working again, the charge-discharge cycle life of a battery system can be shortened, the power and energy performance of the battery is influenced, even thermal runaway is caused, and finally the safety and reliability of the battery pack are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shell and a battery pack so as to solve the technical problem that the battery pack in the prior art is poor in heat dissipation performance.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

in a first aspect, the utility model provides a housing, which comprises a housing body and a dust screen, wherein the housing body encloses a cavity for accommodating a battery;

the shell body is provided with heat dissipation holes;

the dust screen is detachably connected with the inner wall of the shell body, and the heat dissipation holes are covered;

the dustproof net is provided with a plurality of through holes, the area of each through hole is smaller than that of each radiating hole, and the through holes are arranged at intervals along the length direction and/or the width direction of the dustproof net and are communicated with the radiating holes.

Alternatively,

the louvre is equipped with a plurality ofly, and is a plurality of the louvre is along the length and/or the width direction interval setting of casing body.

Or,

the housing body comprises a plurality of side walls and two end caps;

the side walls are connected in sequence, and the adjacent side walls form included angles to form the cavity;

the two end covers are respectively positioned at two ends of the side walls.

Alternatively,

the side wall is provided with the heat dissipation holes, and the dust screen is provided with a plurality of dust screens;

the plurality of dust screens and the plurality of side walls are arranged in a one-to-one correspondence manner.

Alternatively,

the side walls comprise a first side wall and a second side wall, and the first side wall and the second side wall are arranged oppositely;

the shell further comprises a first gasket and a second gasket, the first gasket is arranged corresponding to the first side wall, and the second gasket is arranged corresponding to the second side wall;

the first gasket is positioned on one side of the dust screen, which is far away from the first side wall;

the second gasket is located the dust screen deviates from one side of second lateral wall.

Alternatively,

the dust screen with the inner wall of shell body passes through buckle structure and can dismantle the connection.

In a second aspect, the present invention provides a battery pack comprising a housing as defined in any one of the above.

Alternatively,

the battery pack further comprises a plurality of batteries, and the batteries are arranged at intervals along the width direction and/or the length direction of the battery pack.

Alternatively,

when the case includes a first gasket and a second gasket, both ends of the battery are respectively abutted against the first gasket and the second gasket.

Or,

the battery pack further comprises a key board and a control board, wherein the key board and the control board are oppositely arranged on two sides of the plurality of batteries and are communicated with the batteries;

the control panel is equipped with the radiating block, the radiating block is located the control panel deviates from the one end of keypad.

By combining the technical scheme, the technical effect analysis realized by the utility model is as follows:

the shell provided by the utility model comprises a shell body and a dustproof net, wherein the shell body is enclosed to form a cavity for accommodating a battery pack; the shell body is provided with heat dissipation holes; the dustproof net is detachably connected with the inner wall of the shell body and is covered with radiating holes; the dust screen is equipped with a plurality of through-holes, and the area of through-hole is less than the area of louvre, and a plurality of through-holes set up along the length and/or the width direction interval of dust screen, and switch on with the louvre. The shell body is provided with heat dissipation holes, the dustproof net cover is arranged on the heat dissipation holes, and the heat dissipation holes are used for dissipating heat of the battery pack, so that the heat dissipation performance of the battery pack is improved; in addition, dust, impurities and the like outside the battery pack are blocked by the dustproof net, so that the battery pack is prevented from being damaged due to the fact that the impurities enter the battery pack, and safety and reliability of the battery pack are further improved.

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 described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

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

fig. 2 is a schematic perspective view of a battery pack provided in an embodiment of the present invention (without an end cap);

fig. 3 is a third schematic perspective view (not including a side wall) of a battery pack according to an embodiment of the utility model;

FIG. 4 is a schematic view of a dust screen of the housing according to an embodiment of the present invention;

FIG. 5 is a schematic view of a first gasket of the housing according to the embodiment of the utility model;

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

fig. 7 is a schematic perspective view of a battery pack according to an embodiment of the present invention.

Icon:

100-a shell body; 120-heat dissipation holes; 130-an end cap; 140-a first side wall; 150-a second sidewall; 160-a first shim; 170-a second gasket; 180-a third side wall; 190-a fourth sidewall; 200-dust screen; 210-a via; 300-a battery; 400-a keypad; 500-a control panel; 510-heat sink block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only for convenience of describing the present invention and simplifying the description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

In view of this, the housing provided in the embodiment of the present invention includes a housing body 100 and a dust-proof net 200, wherein the housing body 100 encloses a cavity for accommodating a battery; the case body 100 is provided with heat dissipation holes 120; the dust screen 200 is detachably connected with the inner wall of the case body 100 and covers the heat dissipation holes 120; the dust screen 200 is provided with a plurality of through holes 210, the area of the through holes 210 is smaller than that of the heat dissipation holes 120, and the through holes 210 are arranged at intervals along the length and/or width direction of the dust screen 200 and are communicated with the heat dissipation holes 120. The case body 100 is provided with the heat dissipation holes 120, the dust screen 200 covers the heat dissipation holes 120, and the heat dissipation holes 120 are utilized to dissipate heat of the battery pack, so that the heat dissipation performance of the battery pack is improved; in addition, the dust screen 200 is used for blocking dust, impurities and the like outside the battery pack, so that the battery pack is prevented from being damaged due to the fact that the impurities enter the battery pack, and the safety and the reliability of the battery pack are further improved.

The first embodiment is as follows:

the shape and structure of the housing are explained in detail below:

in an alternative of the embodiment of the present invention, please refer to fig. 1 to 4, the housing body 100 is configured as a rectangular parallelepiped.

Specifically, the cavity for accommodating the battery 300 is a rectangular parallelepiped, and is conveniently matched with the battery 300.

The case body 100 is formed as a rectangular parallelepiped, which facilitates installation of the battery 300 and installation of the battery pack to the power system.

In an alternative aspect of the embodiment of the present invention, the heat dissipation holes 120 are provided in plurality, and the plurality of heat dissipation holes 120 are spaced apart in the length and/or width direction of the case body 100.

Specifically, the plurality of heat dissipation holes 120 are disposed at intervals along the length direction of the case body 100; alternatively, the plurality of heat dissipation holes 120 are provided at intervals in the width direction of the case body 100; alternatively, the plurality of heat dissipation holes 120 are provided at intervals in the longitudinal direction and the width direction of the case body 100.

A plurality of heat dissipation holes 120 are formed, so that the heat dissipation performance of the battery pack is further improved; the plurality of heat dissipation holes 120 are spaced apart along the length and/or width direction of the case body 100, thereby achieving uniform heat dissipation.

In an alternative of the embodiment of the present invention, the heat dissipation hole 120 is provided in a Y shape.

Specifically, the Y-shaped openings of adjacent heat dissipation holes 120 arranged at intervals along the width direction of the case body 100 are opposite in direction and arranged oppositely or staggered, wherein the opposite arrangement means that the Y-shaped openings of two heat dissipation holes 120 are opposite and the planes of the Y-shaped straight line portions coincide, and the staggered arrangement means that the Y-shaped openings of two heat dissipation holes 120 are opposite and the planes of the Y-shaped straight line portions are arranged at intervals; in this embodiment, four rows of heat dissipation holes 120 are formed along the width direction of the housing body 100, and the first row of heat dissipation holes 120 and the second row of heat dissipation holes 120 are staggered; the second heat dissipation hole 120 is disposed opposite to the third heat dissipation hole 120, and the third heat dissipation hole 120 and the fourth heat dissipation hole 120 are disposed in a staggered manner.

The heat dissipation holes 120 are arranged in a Y shape, and when two adjacent heat dissipation holes 120 are arranged in a staggered manner, the straight line part of one heat dissipation hole 120 can be inserted between the straight line parts of a plurality of adjacent heat dissipation holes 120 in the other row, so that the heat dissipation area is enlarged, and the phenomenon that the strength of the shell body 100 is reduced due to the overlarge opening of the heat dissipation hole 120 is avoided. Of course, other shapes of the heat dissipation hole 120, such as circular, square, etc., should also be within the scope of the embodiments of the present invention.

In an alternative to the present embodiment, the housing body 100 includes a plurality of side walls and two end caps 130; the side walls are connected in sequence, and the adjacent side walls form an included angle to form a cavity; two end caps 130 are respectively located at both ends of the plurality of sidewalls.

Specifically, in this embodiment, the housing body 100 includes four sidewalls, and the four sidewalls are sequentially connected to form a cavity having a rectangular cross section. Preferably, adjacent sidewalls are vertically disposed.

The housing body 100 is formed by a plurality of side walls and two end caps 130, and the adjacent side walls are perpendicular to each other, so that the battery 300 can be conveniently accommodated, and the battery pack can be conveniently matched with other accessories.

In an alternative of an embodiment of the utility model, the plurality of side walls are integrally connected.

Specifically, the sheet material is subjected to a bending process, forming the case body 100 having a plurality of side walls.

The plurality of side walls are integrally connected, so that the connection strength of the shell body 100 is enhanced, and the service life of the shell body 100 is prolonged. Of course, other connection methods, such as snap connection, adhesion, etc., should also be within the scope of the embodiments of the present invention.

In an alternative scheme of the embodiment of the utility model, the side wall is provided with a plurality of heat dissipation holes 120, and the dust screen 200 is provided with a plurality of heat dissipation holes; the plurality of dust screens 200 are disposed in one-to-one correspondence with the plurality of sidewalls.

Specifically, in the present embodiment, each sidewall is provided with a plurality of heat dissipation holes 120, and the plurality of heat dissipation holes 120 are arranged in parallel and at intervals along the length and width directions of the sidewall.

Each side wall is provided with a heat dissipation hole 120, so that the heat dissipation performance of the battery pack is further improved; the plurality of dust screens 200 and the plurality of side walls are arranged in a one-to-one correspondence manner, so that the damage to the battery 300 caused by the dust or impurities entering the battery pack from the heat dissipation holes 120 on the side walls is avoided, and the safety performance of the battery pack is further improved.

In an alternative of the embodiment of the present invention, please refer to fig. 3 and 5, the side wall includes a first side wall 140 and a second side wall 150, the first side wall 140 is disposed opposite to the second side wall 150; the housing further comprises a first gasket 160 and a second gasket 170, wherein the first gasket 160 and the first side wall 140 are correspondingly arranged, and the second gasket 170 and the second side wall 150 are correspondingly arranged; the first gasket 160 is positioned on the side of the dust screen 200 away from the first sidewall 140; the second spacer 170 is located on a side of the dust screen 200 facing away from the second sidewall 150.

Specifically, the sidewalls include a first sidewall 140, a second sidewall 150, a third sidewall 180, and a fourth sidewall 190, the first sidewall 140 and the second sidewall 150 are oppositely disposed, and the third sidewall 180 and the fourth sidewall 190 are oppositely disposed and respectively located at both ends of the first sidewall 140 and the second sidewall 150. Preferably, the first and

second shims

160 and 170 are configured in a rectangular shape.

The housing further comprises a first gasket 160 and a second gasket 170, the first gasket 160 and the second gasket 170 are arranged oppositely, when the housing bears the battery 300, the first gasket 160 and the second gasket 170 are respectively located at two ends of the battery 300, when the battery pack is impacted, impact force is transmitted to the battery 300 after the impact force is transmitted to the first gasket 160 or the second gasket 170 by the side wall, and the first gasket 160 or the second gasket 170 can buffer the impact force to play a role in shock prevention. Further, the first pad 160 and the second pad 170 are made of an insulating rubber pad.

In an alternative aspect of the embodiment of the present invention, the first gasket 160 and the second gasket 170 include a plurality of rubber pads, and the plurality of rubber pads are disposed in one-to-one correspondence with the plurality of batteries 300.

Specifically, the elastic rubber pad is obtained by die cutting and stamping the elastic material.

A plurality of cushion and a plurality of battery 300 one-to-one set up, guarantee all to have the buffering between the inner wall of every battery 300 and shell body 100, improved the security and the reliability of battery package.

In an alternative of the embodiment of the present invention, the dust screen 200 is detachably connected to the inner wall of the case body 100 by a snap structure.

Specifically, the side wall of the dust screen 200 is provided with a protrusion or a slot, the inner wall of the housing body 100 is correspondingly provided with a slot or a protrusion, and the protrusion is inserted into the slot.

The inner wall of dust screen 200 and shell body 100 passes through buckle structure and can dismantle the connection, and the mounting means is simple, easily clears up dust screen 200, avoids blockking up influence heat dispersion because of long-time use dust screen 200. Of course, other connection methods, such as bonding, etc., should also be within the scope of the embodiments of the present invention.

Example two:

the battery pack provided by the embodiment of the utility model comprises the shell in the first embodiment, so that all beneficial effects in the first embodiment are achieved, and the details are not repeated.

In an alternative aspect of the present invention, the battery pack further includes a plurality of batteries 300, and the plurality of batteries 300 are disposed at intervals along the width and/or length direction of the battery pack.

Specifically, the plurality of batteries 300 are arranged at intervals in the width direction of the battery pack; alternatively, the plurality of batteries 300 are arranged at intervals along the length direction of the battery pack; alternatively, the plurality of batteries 300 are arranged at intervals in the length and width directions of the battery pack. In this embodiment, the plurality of batteries 300 are arranged at intervals in the length and width directions of the battery pack.

The battery pack comprises a plurality of batteries 300, so that the electric energy of the battery pack is improved, and the energy of the power batteries 300 is improved.

In an alternative of the embodiment of the present invention, when the case includes the first and

second gaskets

160 and 170, both ends of the battery 300 abut the first and

second gaskets

160 and 170, respectively.

Specifically, the batteries 300 are arranged in a cylinder, and the axes of the plurality of batteries 300 are arranged in parallel.

The two ends of the battery 300 are respectively abutted against the first gasket 160 and the second gasket 170, when the battery pack is impacted, the impact force is transmitted to the battery 300 after the impact force is transmitted to the first gasket 160 or the second gasket 170 by the side wall, and the first gasket 160 or the second gasket 170 can buffer the impact force to play a role in shock prevention. Further, the first pad 160 and the second pad 170 are made of an insulating rubber pad. Preferably, the first gasket 160 and the second gasket 170 are sandwiched between the battery 300 and the dust screen 200, so as to facilitate replacement of the first gasket 160 or the second gasket 170. Of course, other arrangements, such as bonding to the ends of the battery 300, etc., are also within the scope of the embodiments of the present invention.

In an alternative of the embodiment of the present invention, please refer to fig. 6 and 7, the battery pack further includes a key board 400 and a control board 500, wherein the key board 400 and the control board 500 are oppositely disposed at two sides of the plurality of batteries 300 and are both communicated with the batteries 300; the control board 500 is provided with a heat dissipation block 510, and the heat dissipation block 510 is disposed at an end of the control board 500 away from the key board 400.

Specifically, a plurality of batteries 300 are arranged in parallel at intervals along the length and width directions of the case to form a battery 300 set, and the key sheet 400 and the control board 500 are respectively located on both sides of the battery 300 set along the length direction of the case.

The key board 400 and the control board 500 are respectively located at two sides of the plurality of batteries 300, and when the key board 400 or the control board 500 is damaged, the damaged key board 400 or the damaged control board 500 can be replaced correspondingly without being replaced completely, so that the maintenance cost is saved. The control board 500 is provided with a heat dissipation block 510 for dissipating heat from the control board 500, thereby preventing the control board 500 from being out of service due to overhigh temperature of the control board 500. More preferably, the heat slug 510 is made of aluminum plate.

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

1. A housing, comprising: the battery case comprises a case body (100) and a dust screen (200), wherein the case body (100) encloses to form a cavity for accommodating a battery (300);

the shell body (100) is provided with heat dissipation holes (120);

the dust screen (200) is detachably connected with the inner wall of the shell body (100), and the heat dissipation holes (120) are covered;

the dustproof net (200) is provided with a plurality of through holes (210), the area of each through hole (210) is smaller than that of each heat dissipation hole (120), and the through holes (210) are arranged at intervals in the length direction and/or the width direction of the dustproof net (200) and are communicated with the heat dissipation holes (120).

2. The case according to claim 1, wherein the heat dissipating hole (120) is provided in plurality, and the plurality of heat dissipating holes (120) are provided at intervals in a length and/or width direction of the case body (100).

3. The housing according to claim 1, wherein the shell body (100) comprises a plurality of side walls and two end caps (130);

the two end covers (130) are respectively positioned at two ends of the side walls.

4. The housing according to claim 3, wherein said side wall is provided with said heat radiating holes (120), and said dust-proof net (200) is provided in plurality;

the plurality of dust screens (200) and the plurality of side walls are arranged in a one-to-one correspondence manner.

5. The housing of claim 4, wherein the side walls include a first side wall (140) and a second side wall (150), the first side wall (140) being disposed opposite the second side wall (150);

the shell further comprises a first gasket (160) and a second gasket (170), the first gasket (160) is arranged corresponding to the first side wall (140), and the second gasket (170) is arranged corresponding to the second side wall (150);

the first gasket (160) is positioned on the side of the dust screen (200) facing away from the first side wall (140);

the second gasket (170) is located on a side of the dust screen (200) facing away from the second side wall (150).

6. The housing according to any of claims 1 to 5, wherein the dust screen (200) is detachably connected to the inner wall of the housing body (100) by a snap-fit structure.

7. A battery pack comprising a housing as claimed in any one of claims 1 to 6.

8. The battery pack according to claim 7, wherein the battery pack further comprises a plurality of batteries (300), and the plurality of batteries (300) are arranged at intervals along the width and/or length direction of the battery pack.

9. The battery pack according to claim 8, wherein when the case includes a first gasket (160) and a second gasket (170), both ends of the battery (300) abut against the first gasket (160) and the second gasket (170), respectively.

10. The battery pack according to claim 9, further comprising a key sheet (400) and a control board (500), wherein the key sheet (400) and the control board (500) are oppositely disposed on both sides of the plurality of batteries (300) and are both communicated with the batteries (300);

the control panel (500) is provided with a heat dissipation block (510), and the heat dissipation block (510) is arranged at one end, deviating from the key board (400), of the control panel (500).