CN215816122U

CN215816122U - Battery structure

Info

Publication number: CN215816122U
Application number: CN202121262355.XU
Authority: CN
Inventors: 田欣
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-02-11
Anticipated expiration: 2031-06-07

Abstract

The utility model discloses a battery structure, and relates to the technical field of lithium batteries. The battery structure includes a waterproof case and a heat sink. The waterproof shell is sleeved outside the battery to form a gap, a heat dissipation port and a water outlet are formed in the waterproof shell, the heat dissipation port and the water outlet are communicated with the gap, and the heat dissipation port is higher than the water outlet; the radiating fins are positioned in the gaps and are attached to the side faces of the batteries. Can enough improve the water-proof effects to the battery through this battery structure, can distribute away the battery heat comparatively fast again, guarantee the normal use of battery.

Description

Battery structure

Technical Field

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

Background

To current waterproof construction, there is the relatively poor problem of water-proof effects, in case intake in the waterproof casing, be difficult to discharge water fast, because waterproof casing is airtight relatively simultaneously, so can not distribute away the heat of lithium cell effectively, be unfavorable for the normal use of lithium cell, probably lead to the lithium cell to burn out even when serious.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery structure, which can improve the waterproof effect on a battery, can quickly dissipate the heat of the battery and ensures the normal use of the battery.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a battery structure comprising:

the waterproof case is sleeved outside the battery to form a gap, a heat dissipation port and a water outlet are arranged on the waterproof case, the heat dissipation port and the water outlet are communicated with the gap, and the heat dissipation port is arranged higher than the water outlet;

and the radiating fins are arranged in the gaps and are attached to the side surfaces of the batteries.

As a preferable aspect of the battery structure, the waterproof case includes:

the top of the shell is provided with a battery inlet and a battery outlet;

and the sealing cover is covered on the battery inlet and outlet and is in sealing connection with the shell.

As a preferable scheme of the battery structure, a limiting groove is arranged on one side of the shell opposite to the sealing cover, a limiting bulge is arranged on one side of the sealing cover opposite to the shell, and the limiting bulge is clamped in the limiting groove; or

The side, opposite to the sealing cover, of the shell is provided with the limiting protrusion, the side, opposite to the shell, of the sealing cover is provided with the limiting groove, and the limiting protrusion is clamped in the limiting groove.

As a preferable scheme of the battery structure, the bottom of the sealing cover is connected with a sealing block, and the sealing block is inserted in the battery inlet and outlet;

the waterproof case still includes sealed the pad, sealed pad edge the circumference cover of sealed piece is established sealed piece is last, sealed piece passes through sealed pad with battery import and export sealing connection.

As a preferable mode of the battery structure, the waterproof case further includes a fastening member, and the case is detachably connected to the sealing cover through the fastening member.

As a preferable scheme of the battery structure, the battery structure further comprises a moisture-proof pad, the moisture-proof pad is arranged at the bottom in the waterproof case, and the battery is placed above the moisture-proof pad.

As a preferable scheme of the battery structure, the heat radiating fins and the water outlet are oppositely arranged at intervals;

the battery structure further comprises a flow guide part, the flow guide part is located between the radiating fin and the water outlet, the flow guide part is provided with a flow guide surface which is obliquely arranged along the vertical direction, the upper end of the flow guide surface extends to one side of the battery, back to the radiating fin, and the lower end of the flow guide surface extends to the water outlet.

As a preferable scheme of the battery structure, a lead is connected to the battery;

the battery structure still includes the wire shell, the wire shell cover is established on the wire, the wire shell passes the waterproof cover setting and with the waterproof cover is connected.

As a preferable mode of the battery structure, the heat sink is provided as an insulating member.

As a preferable scheme of the battery structure, the battery structure further comprises a dustproof net, and the dustproof net is covered at the heat dissipation opening.

The utility model has the beneficial effects that:

the utility model provides a battery structure, which can enable water to be discharged through a gap and a water outlet in sequence when water enters a waterproof shell, so that water accumulation in the waterproof shell is avoided, and the waterproof effect is improved. Simultaneously, when the battery used, can derive the heat that the battery dispels to the clearance fast through the fin, and then make the heat scatter to the outside of buckler through the thermovent again to guarantee that the battery can last normal use, effectively avoid the battery to burn out.

Drawings

Fig. 1 is a schematic view of the overall appearance structure of a battery structure provided in an embodiment of the present invention;

fig. 2 is an overall sectional structural schematic view of a battery structure provided in an embodiment of the present invention;

fig. 3 is a schematic view of the overall structure of a heat sink provided in an embodiment of the present invention.

In the figure:

100. a battery; 200. a wire;

1. a waterproof shell; 11. a housing; 111. a heat dissipation port; 112. a water outlet; 113. a battery inlet and outlet; 114. a limiting groove; 115. a first mounting block; 12. a sealing cover; 121. a limiting bulge; 122. a sealing block; 123. a second mounting block; 13. a gap; 14. a gasket; 15. a fastener; 16. a handle; 17. a support leg;

2. a heat sink; 21. a heat dissipation layer; 22. a bonding layer; 3. a dust screen; 4. a moisture-proof pad; 5. a flow guide member; 51. a flow guide surface; 6. a wire housing.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. 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.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and 2, the present embodiment provides a battery structure including a waterproof case 1 and a heat sink 2. Wherein the waterproof case 1 is fitted over the outside of the battery 100 to form a gap 13. Waterproof case 1 is provided with heat radiation opening 111 and water discharge opening 112, both heat radiation opening 111 and water discharge opening 112 are communicated with gap 13, and heat radiation opening 111 is higher than water discharge opening 112. Heat sink 2 is located in gap 13, and heat sink 2 is attached to the side surface of battery 100.

According to the arrangement, when water enters the waterproof shell 1, the water can be discharged through the gap 13 and the water outlet 112 in sequence, water accumulation in the waterproof shell 1 is avoided, and the waterproof effect is improved. Simultaneously, when battery 100 used, can derive the heat that battery 100 dispels to clearance 13 fast through setting up fin 2, and then make the heat through thermovent 111 outside of dispelling to waterproof case 1 again to guarantee that battery 100 can last normal use, effectively avoid battery 100 to burn out.

It should be noted that, since heat radiation port 111 is provided higher than drain port 112, it is ensured that water in waterproof case 1 is discharged through drain port 112 instead of through heat radiation port 111.

In this embodiment, one heat dissipation opening 111 is provided, which is located at the middle of the front side of the waterproof case 1. Two water discharge ports 112 are provided, and the two water discharge ports 112 are respectively located at the lower portion of the left side and the lower portion of the right side of the waterproof case 1. Of course, in other embodiments, the number and the position of the heat dissipation opening 111 and the water discharge opening 112 can be adjusted according to actual needs, and are not limited to this embodiment.

Optionally, a dust screen 3 is further disposed in the battery structure, and the dust screen 3 is covered at the heat dissipation port 111. Can prevent effectively through dust screen 3 that the dust from passing through thermovent 111 and getting into in waterproof case 1, both can guarantee the inside cleanness of waterproof case 1, also can avoid too much dust to cause adverse effect to the operation of battery 100, guarantee the normal use of battery 100.

The heat sink 2 is an insulating member to prevent a short circuit from occurring when it contacts the battery 100, thereby ensuring the normal operation of the battery 100. In terms of quantity, two heat dissipation fins 2 are arranged in the battery structure, and the two heat dissipation fins 2 are respectively attached to the left side surface and the right side surface of the battery 100, so that the heat dissipation efficiency is improved.

In other embodiments, the heat sink 2 may be attached to other side surfaces of the battery 100, and the heat sink 2 and the side surfaces of the battery 100 are disposed in a one-to-one correspondence. Of course, one heat dissipation sheet 2 may be bent according to actual needs, so that one heat dissipation sheet 2 is attached to two adjacent sides (e.g., the left side and the front side of the battery 100) or more sides of the battery 100 at the same time.

In particular structural aspects, as shown in fig. 3, the heat sink 2 includes a heat dissipation layer 21 and an adhesive layer 22. Wherein, the heat dissipation layer 21 plays a role of heat dissipation; the adhesive layer 22 is located between the heat dissipation layer 21 and the battery 100, and the heat dissipation layer 21 is adhered to the side surface of the battery 100 by the adhesive layer 22. Thus, air between the heat sink 2 and the battery 100 can be discharged, and sufficient contact between the heat sink 2 and the battery 100 can be ensured, thereby achieving excellent heat dissipation.

Optionally, the battery structure further comprises a moisture-proof mat 4, the moisture-proof mat 4 being arranged at the bottom inside the waterproof case 1, the battery 100 being placed above the moisture-proof mat 4. Accordingly, the waterproof effect of the battery structure can be further improved by the moisture-proof mat 4. In this embodiment, the moisture-proof pad 4 is also an insulating member, as in the case of the heat sink 2, to prevent short circuit from occurring when contacting the battery 100, thereby ensuring normal operation of the battery 100.

Next, the waterproof case 1 and other arrangements in the battery structure will be described.

As a specific structure of the waterproof case 1, as shown in fig. 1 and 2, it includes a case 11 and a sealing cover 12. The top of the housing 11 is provided with a battery inlet 113, and the sealing cover 12 is disposed on the battery inlet 113 and is connected to the housing 11 in a sealing manner. Therefore, the battery 100 can be quickly placed into the waterproof case 1 through the battery inlet/outlet 113, which is very convenient. Then, the battery inlet/outlet 113 can be covered by the sealing cover 12, thereby ensuring the waterproof property of the waterproof case 1.

Alternatively, a stopper groove 114 is provided on the side of the housing 11 opposite to the sealing cover 12, and a stopper protrusion 121 is provided on the side of the sealing cover 12 opposite to the housing 11. The limiting protrusion 121 is clamped in the limiting groove 114, so that the sealing cover 12 can be conveniently and quickly positioned when being installed, and the connection stability of the shell 11 and the sealing cover 12 is improved. In this embodiment, the left and right sides of the top of the waterproof case 1 are horizontally extended inward to form extension plates, and the sealing covers 12 abut against the extension plates. The extending plate on each side is provided with an upward limiting groove 114 to match with the limiting protrusion 121.

Of course, in other embodiments, the limiting protrusion 121 may be disposed on the side of the housing 11 opposite to the sealing cover 12, and the limiting groove 114 may be disposed on the side of the sealing cover 12 opposite to the housing 11 to perform the same function.

Optionally, a sealing block 122 is further connected to the bottom of the sealing cover 12, and the sealing block 122 is inserted into the battery inlet/outlet 113. The waterproof case 1 further includes a sealing gasket 14, the sealing gasket 14 is sleeved on the sealing block 122 along the circumferential direction of the sealing block 122, and the sealing block 122 is hermetically connected with the battery inlet 113 and the battery outlet 113 through the sealing gasket 14. According to the arrangement, the sealing performance of the connection between the sealing cover 12 and the shell 11 can be ensured, and the structure is simple and convenient to assemble.

In this embodiment, the bottom of the sealing block 122 is spaced apart from the battery 100. The extension plate is a ring plate, a battery inlet and outlet 113 is formed in the middle of the extension plate, and the sealing gasket 14 abuts against the lower side of the extension plate along the circumferential direction of the extension plate to form a sealing structure.

Optionally, the watertight housing 1 further comprises a fastening member 15, and the housing 11 is detachably connected to the sealing cover 12 by the fastening member 15. In the present embodiment, the fastener 15 is a bolt assembly including a fastening bolt and a fastening nut. Specifically, as shown in fig. 1, a first mounting block 115 is disposed on each of the left and right sides of the sealing cover 12, a second mounting block 123 is disposed on each of the left and right sides of the top of the housing 11, and the first mounting block 115 and the second mounting block 123 are disposed correspondingly. The fastening bolt passes through the first mounting block 115 and the second mounting block 123 in turn from top to bottom to be in threaded connection with the fastening nut, so as to realize the detachable fixed connection between the shell 11 and the sealing cover 12.

Otherwise, a handle 16 is provided on the top of the watertight housing 1 for the user to use. In this embodiment, the handle 16 is mounted at the top of the sealing cap 12 in the middle. Further, both sides at the bottom of waterproof shell 1 are provided with stabilizer blade 17 respectively, and all are provided with the slipmat in the bottom of every stabilizer blade 17 to guarantee the steadiness that waterproof shell 1 placed.

In addition to ensuring waterproofing through the sealing connection between the case 11 and the sealing cover 12, the present embodiment also performs other settings in the battery structure to improve the overall waterproofing effect.

As shown in fig. 2, the heat sink 2 is disposed opposite to the drain opening 112 at a distance. Meanwhile, a flow guide member 5 is further disposed in the battery structure, the flow guide member 5 is located between the heat sink 2 and the drain 112, the flow guide member 5 has a flow guide surface 51 inclined in the up-down direction, an upper end of the flow guide surface 51 extends to a side of the heat sink 2 facing away from the battery 100, and a lower end of the flow guide surface 51 extends to the drain 112. At this time, the water in the waterproof case 1 can be guided to the drain port 112 and drained by the flow guide surface 51, and the drainage efficiency is improved. Of course, the guide surface 51 prevents the external water from flowing back into the waterproof case 1 through the drain port 112.

In this embodiment, two flow guiding members 5 are provided, and the two flow guiding members 5 are respectively disposed on the left and right sides in the waterproof case 1 and are disposed in one-to-one correspondence with the two water outlets 112.

Alternatively, in consideration of the fact that the lead wire 200 is connected to the battery 100, external water may enter the waterproof case 1 through the lead wire 200 when the lead wire 200 passes through the waterproof case 1, adversely affecting waterproofing, and the lead case 6 is further provided in the battery structure. Specifically, the wire casing 6 is sleeved on the wire 200, and the wire casing 6 passes through the waterproof casing 1 and is connected with the waterproof casing 1, so that external water can be prevented from entering the waterproof casing 1 through the wire 200. In this embodiment, an opening is formed in the left side of the waterproof case 1 so that the wire case 6 can be easily pulled out, and the wire case 6 is hermetically connected to the opening through a sealing ring.

In summary, the present embodiment provides a battery structure, which has the following advantages:

(1) the waterproof performance is good. Specifically, the sealing performance after the housing 11 and the sealing cover 12 are assembled is ensured by the arrangement of the limiting groove 114, the limiting protrusion 121, the sealing block 122, the sealing gasket 14 and the like; through the arrangement of the communicated gap 13 and the water outlet 112, water in the waterproof case 1 can be quickly discharged; the whole waterproof performance of the battery structure is effectively improved through the arrangement of the moisture-proof pad 4, the flow guide piece 5, the lead shell 6 and the like.

(2) And the heat dissipation performance is good. Specifically, by arranging the heat dissipation fins 2, the gaps 13 and the heat dissipation openings 111, heat generated by the battery 100 can be quickly discharged out of the waterproof case 1, so that the battery 100 can be continuously and normally used, and the battery 100 is prevented from being burnt out.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A battery structure, comprising:

the waterproof case (1) is sleeved outside the battery (100) to form a gap (13), a heat dissipation opening (111) and a water drainage opening (112) are arranged on the waterproof case (1), the heat dissipation opening (111) and the water drainage opening (112) are communicated with the gap (13), and the heat dissipation opening (111) is higher than the water drainage opening (112);

and a heat sink (2) disposed in the gap (13), the heat sink (2) being disposed on a side surface of the battery (100).

2. The battery structure according to claim 1, characterized in that the waterproof case (1) comprises:

the battery pack comprises a shell (11), wherein a battery inlet and outlet (113) is formed in the top of the shell (11);

and the sealing cover (12) is covered on the battery inlet and outlet (113) and is in sealing connection with the shell (11).

3. The battery structure according to claim 2, characterized in that a limiting groove (114) is arranged on the side of the shell (11) opposite to the sealing cover (12), a limiting bulge (121) is arranged on the side of the sealing cover (12) opposite to the shell (11), and the limiting bulge (121) is clamped in the limiting groove (114); or

The side, opposite to the sealing cover (12), of the shell (11) is provided with the limiting protrusion (121), the side, opposite to the sealing cover (12), of the sealing cover (12) is provided with the limiting groove (114), and the limiting protrusion (121) is clamped in the limiting groove (114).

4. The battery structure according to claim 2, wherein a sealing block (122) is connected to the bottom of the sealing cover (12), and the sealing block (122) is inserted into the battery inlet/outlet (113);

waterproof housing (1) still includes sealed pad (14), sealed pad (14) are followed the circumference cover of sealed piece (122) is established sealed piece (122) is last, sealed piece (122) are passed through sealed pad (14) with battery exit (113) sealing connection.

5. The battery structure according to claim 2, characterized in that the watertight case (1) further comprises a fastening member (15), and the case (11) is detachably connected to the sealing cover (12) by the fastening member (15).

6. The battery structure according to claim 1, characterized in that the battery structure further comprises a moisture-proof mat (4), the moisture-proof mat (4) being provided at the bottom inside the waterproof case (1), the battery (100) being placed above the moisture-proof mat (4).

7. The battery structure according to claim 1, wherein the heat sink (2) is disposed opposite to the drain opening (112) at a spacing;

the battery structure still includes water conservancy diversion spare (5), water conservancy diversion spare (5) are located fin (2) with between outlet (112), water conservancy diversion spare (5) have along water conservancy diversion face (51) that the upper and lower direction slope set up, the upper end of water conservancy diversion face (51) extends to back on fin (2) one side of battery (100), the lower extreme of water conservancy diversion face (51) extends to outlet (112).

8. The battery structure according to claim 1, characterized in that a lead wire (200) is connected to the battery (100);

the battery structure further comprises a wire shell (6), the wire shell (6) is sleeved on the wire (200), and the wire shell (6) penetrates through the waterproof shell (1) and is connected with the waterproof shell (1).

9. The battery structure according to any one of claims 1 to 8, characterized in that the heat sink (2) is provided as an insulating member.

10. The battery structure according to any one of claims 1 to 8, characterized in that the battery structure further comprises a dust screen (3), the dust screen (3) being provided at the heat dissipation port (111) in a covering manner.