CN218648022U - Battery pack, charging device and charging combination - Google Patents
Battery pack, charging device and charging combination Download PDFInfo
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- CN218648022U CN218648022U CN202222886314.9U CN202222886314U CN218648022U CN 218648022 U CN218648022 U CN 218648022U CN 202222886314 U CN202222886314 U CN 202222886314U CN 218648022 U CN218648022 U CN 218648022U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application discloses battery package, charging device and charging assembly. The charging device includes: the battery pack comprises a shell, wherein a connecting part is arranged on the shell and is used for being connected with the battery pack in a matching way; the shell is provided with a plurality of air inlet grids which are arranged on the same side of the connecting part, the air inlet grids are arranged in an array mode, each air inlet grid comprises a plurality of through holes, a fan and a power module are arranged in the shell, at least part of the projection of the fan on the side of the connecting part is overlapped with the air inlet grids, the power module is arranged on a heat dissipation plate, the heat dissipation plate is located on the lower side of the fan, the shell is provided with an air outlet, and the air outlet is arranged on the side, close to the connecting part of the shell, of the bottom part opposite to the connecting part of the shell. This combination that charges utilizes a fan to force convulsions to form and advances cold air from battery package air intake, and the air current takes away the heat that electric core produced at the charge-discharge in-process through the wind channel, cools off electric core, then blows to charging device and flows from its air outlet under the effect of fan, realizes the purpose to battery package and charging device refrigerated.
Description
Technical Field
The application relates to the field of garden tool equipment, in particular to a battery pack, a charging device and a charging combination.
Background
At present, a plurality of heat dissipation windows are arranged on the shells of the battery pack and the charger as much as possible, and the temperature of the battery pack or the charger cannot reach the protection temperature for heat dissipation in the charging process through the heat dissipation windows, so that the charging process is influenced. With the popularization of fast charging and high-current chargers, 2 fans (as disclosed in chinese patent CN 201084796Y) or a plurality of fans are usually disposed inside the charger to dissipate heat. The arrangement of the plurality of heat dissipation windows greatly reduces the appearance attractiveness of the battery pack and the charger, and the arrangement of the plurality of fans increases the cost of the charger and has high energy consumption.
For this reason, there is a need to improve existing chargers and their combination with battery packs.
SUMMERY OF THE UTILITY MODEL
To overcome the above disadvantages, the present application aims to: a battery pack, a charging device and a charging assembly are provided. The charging combination effectively solves the problem that the battery pack and the charging device are cooled when the battery pack is charged and discharged on the premise of not increasing the product cost.
In order to achieve the purpose, the following technical scheme is adopted in the application:
a battery pack, comprising:
a housing, on which a connection part and a plurality of air outlet grids are arranged,
the connecting part is used for being matched and connected with the charging device, the air outlet grids are arranged in an array,
an air inlet groove is arranged on the side face of the shell, the width of the air inlet groove is smaller than or equal to 1.2mm, and the air inlet groove is used for communicating the inner cavity of the battery pack with the external environment. The air inlet amount is improved through the design of the air inlet groove, and meanwhile, the aesthetic feeling of the battery pack is not influenced. The bottom of shell is provided with the outage, and in the air inlet duct probably got into to a small amount of rainwater in actual practical process, the inner wall through the casing guide to the outage and be discharged like this rainwater can't get into inside the battery package
Preferably, in the battery pack, each air outlet grid comprises a plurality of through holes, and the through holes are used as air outlet holes.
Preferably, the bottom of the housing is provided with a drain hole for draining liquid.
The application provides a charging device, it is used for charging for foretell battery package, includes:
the battery pack comprises a shell, a battery pack and a battery pack, wherein a connecting part is arranged on the shell, and an electrode plate is arranged on the connecting part and is used for being connected with the battery pack in a matched manner;
the shell is provided with a plurality of air inlet grids which are arranged on the same side of the connecting part, the air inlet grids are arranged in an array, each air inlet grid comprises a plurality of through holes,
a fan and a power module are arranged in the housing, a projection of the fan on the side of the connecting portion at least partially overlaps the plurality of intake grids, the power module is arranged on a heat dissipating plate, and the heat dissipating plate is positioned on the lower side of the fan,
the shell is provided with an air outlet, and the air outlet is arranged at the side of the shell close to the bottom opposite to the connecting part of the shell.
Preferably, the housing has a tetragonal shape, the connecting portion is disposed on a top side of the housing, and the outlet is disposed on a side surface of the housing and close to a bottom side of the connecting portion opposite to the housing.
Preferably, the connection portion is formed in a square shape, the plurality of air inlet grills are disposed inside the connection portion, an auxiliary air inlet is disposed on the connection portion and communicated with the inside of the case, and the auxiliary air inlet is disposed to face the electrode sheet.
Preferably, the area of the auxiliary air inlet is more than or equal to 1/3 of the air outlet of the battery.
Preferably, a guide portion is provided in the housing, the guide portion guiding air flowing in from the auxiliary air inlet to the fan side to be mixed with air flowing in from the air intake grill.
Preferably the housing comprises an upper housing and a lower housing,
a notch is arranged at the side surface end part side of the upper shell, the upper shell is combined with the lower shell, the notch forms an air outlet of the charging device,
the lower case has: a connecting end for connecting with the upper shell,
a protruding part is arranged in the lower shell, a gap is arranged between the protruding part and the connecting end,
the top of the protruding part is located on a plane higher than the plane of the connecting end in the horizontal direction,
go up the casing and with the casing combination back down, the protruding covers the breach, the air current warp the protruding baffling flows from the air outlet.
The embodiment of the application provides a charging combination, it includes: in the above-mentioned battery pack and charging device,
the battery pack is matched and arranged behind the charging device,
the air inlet grids face the air outlet grids of the battery pack, the air inlet area on the air inlet grids combined by the plurality of perforations is smaller than or equal to the air outlet area of the air outlet grids, cooling air enters the shell from the air inlet grooves, flows through the battery core, flows out of the air outlet grids of the battery pack, is introduced into the shell of the charging device through the air inlet grids, and blows air guided by the fan to the heat dissipation plate and flows out of the air outlet of the charging device to cool the charging device. The charging combination realizes the cooling of the battery pack and the charger through a fan.
Advantageous effects
The application provides a charging device, a fan of its internal configuration utilizes this fan to force convulsions to form and advances cold air from battery package air intake during charging, and the air current takes away the heat that electric core produced at the charge-discharge in-process through the wind channel, cools off electric core, then blows to charging device and flows out from its air outlet under the effect of fan, realizes the purpose to battery package and charging device refrigerated. In addition, a baffling structure is arranged at an air outlet of the charging device, so that water is prevented from entering the shell from the outside. The air outlet of the charging device adopts a hidden design, so that the aesthetic feeling is improved.
Drawings
The accompanying drawings are included to provide an understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure. The shapes and sizes of the various elements in the drawings are not to be considered as true proportions, but rather are merely intended to illustrate the context of the application.
Fig. 1 is a schematic perspective view of a charging assembly according to an embodiment of the present disclosure.
Fig. 2 is a schematic cross-sectional view from a perspective of fig. 1.
Fig. 3 is a schematic cross-sectional view from a perspective of fig. 1.
Fig. 4 is a schematic perspective view of a battery pack according to an embodiment of the present application.
Fig. 4a is a schematic top view of the battery pack of fig. 4.
Fig. 4B is a schematic cross-sectional view at B-B in fig. 4 a.
Fig. 5 is a schematic top view of a charging device according to an embodiment of the present application.
Fig. 6 and 7 are schematic cross-sectional views of the charging device in a view angle of fig. 5.
Fig. 8 is a schematic perspective view of a charging device according to an embodiment of the present application.
Fig. 9 is a schematic cross-sectional view of the charging assembly of fig. 1 from a perspective.
Fig. 10 is a schematic cross-sectional view of the charging device in fig. 1 from a perspective.
Fig. 11 is a schematic perspective view of a battery pack according to an embodiment of the present application.
Fig. 12 is a schematic perspective view of the battery pack shown in fig. 11 with the first cover plate hidden.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present application. The conditions employed in the examples may be further adjusted as determined by the particular manufacturer, and the conditions not specified are typically those used in routine experimentation.
In the present application, the terms "upper", "lower", "inner", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
The application discloses battery package, charging device and charging assembly. This combination of charging utilizes a fan action in the charging device to forced draft forms and advances cold air from the battery package air intake, and the air current takes away the heat that electric core produced at the charge-discharge in-process through the wind channel, cools off electric core, then blows to charging device and flows out from its air outlet under the effect of fan, realizes the purpose to battery package and charging device cooling. The charging device is provided with a waterproof structure for preventing water from flowing into the inside of the case from the outside.
The charging device and the charging combination proposed in the present application are described below with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view of a charging assembly according to an embodiment of the present disclosure.
This charging combination includes: the charging device (also called charger) 200 and the battery pack 100 matched with the charging device 200 are provided, the top side of the casing 101 of the battery pack 100 is provided with a connecting end 120 (see fig. 4), and the casing 101 is provided with an air inlet groove 130. The intake duct 130 is disposed on the bottom side of the side surface of the housing 101 (bottom side is away from the connection end 120). The width of the air inlet groove is less than or equal to 1.2mm. The too big filter screen that needs of width of groove to avoid the foreign matter to get into in the battery package from the air inlet duct. Compared with the prior battery pack, the air inlet is in a porous shape, so that the air inlet amount is increased. The housing 101 may be formed by combining a plurality of cover plates to enclose the internal cells. In the present embodiment, the housing 101 includes a first cover plate 101a and an inner lining plate 101b (see fig. 11 and 12), the first cover plate 101a covers the inner lining plate 101b, one side end of the inner lining plate 101b is provided with a recess 101b, after the first cover plate 101a covers the inner lining plate 101b, the recess 101b and the first cover plate 101a form an air inlet channel 130, the air inlet channel 130 and the air inlet flow path 131, and external air flows through the air inlet channel 130 into the air inlet flow path 131 and then into the battery pack to cool the battery cell.
The internal structure of the charging assembly is described with reference to fig. 2, 3 and 9.
The charging device has a housing, a plurality of air inlet grilles 210 disposed on the housing, a fan 220 disposed in the housing, the air inlet grilles 210 facing the fan 220,
after the battery pack is mounted on the charging device in a matching way, the connecting end 120 of the battery pack is connected with the charging device in a matching way,
the inlet grill 210 faces the outlet grill 140 of the pack,
when the charging device charges the battery pack, the fan is operated, air enters the casing 101 from the air inlet slot 130 on the side surface of the battery pack 100, flows through the battery cell 110 to cool the battery cell, flows out of the air outlet grid 140 of the battery pack, is introduced into the shell of the charging device through the air inlet grid 210 of the charging device,
the air guided by the fan 220 blows toward a heat dissipating plate (e.g., a heat dissipating aluminum plate) of the power module to cool the power module and the charging device, and then flows out from the air outlet 250 of the charging device. Therefore, when a fan 220 is used in a charging state, the fan can forcibly draw air towards an air outlet grid (also called an air outlet of a battery pack) of the battery pack to form cold air entering from an air inlet of the battery pack, and the air flow passes through an air duct (a gap reserved in the middle of an electric core of the battery pack) to take away heat generated by the electric core in the charging and discharging processes, so that the effect of cooling the electric core of the battery pack is achieved; air coming out of the battery pack blows to a heat dissipation aluminum plate in the charging device under the action of the fan, then flows out of an air outlet (a hidden air port) on the charger to dissipate heat, and the aim of cooling the battery pack and the charging device is fulfilled.
In one embodiment, the charging device is configured with a first mode of operation in which the fan operates to draw air to cool the battery pack. The battery pack may be discharged with a large current or overheated due to overshoot. In this mode, the charging device does not charge the battery pack, and only cools the battery pack with the fan. And when the temperature of the battery pack is lower than the preset temperature, entering a second working mode, and charging the battery pack by the charging device in the second working mode.
When the charging device is in operation, the air flow for cooling the battery pack is guided into the charging device by the fan and blown to the heat dissipation aluminum plate of the charging device together with the air entering from the auxiliary air inlet 230, so as to cool the heat dissipation aluminum plate. The cooling efficiency can be improved. The temperature of the air introduced through the auxiliary air inlet 230 is lower than that of the air introduced from the air inlet grill 210 to cool the battery pack.
Next, the three-dimensional structure of the battery pack of the present application will be described with reference to fig. 4.
The battery pack comprises a casing 101, wherein a connecting part 120 is arranged on the casing 101, and the connecting part 120 is used for matching connection with a charging device or a tool. A plurality of outlet grids 140, the plurality of outlet grids 140 being arranged in an array. Each air outlet grill 140 includes a plurality of perforations 141, and the perforations 141 serve as air outlet holes. The area of the air outlet of the battery combined by the plurality of air outlets is S1. An air inlet slot 130 (hidden air inlet to improve the aesthetic appearance of the battery pack) is provided on the side of the housing 101. Preferably, the air inlet slot 130 is disposed on the side of the side near the bottom (the side far from the connecting portion 120), so as to lengthen the flow path of the gas/air in the housing and improve the cooling effect.
The bottom of the housing 101 is provided with a drain hole 102, and the drain hole 102 is used for draining liquid (e.g., rainwater). In practical process a small amount of rainwater probably gets into the air inlet duct, leads to outage 102 through the inner wall of casing, flows out through this outage 109, if there is a small amount of rainwater to get into the downthehole accessible air inlet duct of outage and discharge, the rainwater can't get into inside the battery package like this.
The structure of the charging device of the present application is described next with reference to fig. 5 to 8.
The charging device comprises a shell, wherein a connecting part 240 is arranged on the shell, an electrode plate 241 is arranged on the connecting part, and the electrode plate 241 is used for being matched and connected with the connecting part of the battery pack. The connection part 240 has a mounting plane 242 thereon, and the mounting plane 242 is in contact with the battery pack (see fig. 2). The housing is provided with a plurality of air inlet grills 210, and the air inlet grills 210 are arranged in an array. Each air inlet grid 210 includes a plurality of through holes 211, and the air inlet area on the air inlet grid combined by the plurality of through holes 211 is S2 (preferably, S2 is less than or equal to S1, which is equivalent to the air outlet of the battery pack through the air inlet grid). The housing is provided with an outlet 250, and the outlet 250 is disposed on a side close to the bottom of the housing (the bottom is opposite to the side of the connecting portion 240 of the housing). A fan 220 is disposed in the housing, and the fan 220 draws air into the intake grill 210 during operation. A power module is disposed in the case, and the power module is disposed on the heat sink 260 and cooled by the heat sink 260. Preferably, the heat dissipation plate can be a heat dissipation aluminum plate or a heat dissipation aluminum plate provided with a graphene coating (to improve heat dissipation efficiency).
An auxiliary air inlet 230 is disposed on the charging device, and the auxiliary air inlet 230 may be disposed near the air inlet grille 210 or at other positions. In the present embodiment, the auxiliary intake port 230 is disposed near the intake grill 210, and the guide portion 231 is disposed in the housing, and the guide portion 231 guides the air flowing in from the auxiliary intake port 230 to the fan side to be mixed with the air flowing in from the intake grill 210. Preferably, the area S3 of the auxiliary air inlet is greater than or equal to 1/3 of the area S1 of the air outlet of the battery. In other embodiments, the guide 231 may be omitted.
When the charging device is operated, cooling air flows in from the air inlet grid 210 side and the auxiliary air inlet 230 side, is guided by the fan to blow towards the heat dissipation plate, and then flows out from the air outlet 250 of the shell to take away heat in the shell, so as to cool the power module and the charging device.
The internal structure of the charging device is described next with reference to fig. 10.
The charging device includes a housing including an upper housing 201b and a lower housing 201a, a cutout 201b is disposed on a side surface end portion side of the upper housing 201b, the upper housing 201b is combined with the lower housing 201a, and the cutout 201b constitutes an air outlet. The lower case 201a has a connection end 201a2, the connection end 201a2 is used for connecting with the upper case 201b, a protrusion 201a1 is arranged in the lower case 201a, a space is provided between the protrusion 201a1 and the connection end 201a2, and a plane where a top 201a11 of the protrusion 201a1 is located is higher than a plane where the connection end 201a2 is located in the horizontal direction. When the upper case 201b and the lower case 201a are combined in this way, the protrusion 201a1 can cover the notch 201b, and the airflow flows out from the air outlet through the gap between the protrusion 201a1 and the connection end 201a2 and the upper case 201b (forming a hidden air outlet, improving the appearance of the charger). The protrusion 201a1 is provided in this way, so that water can be prevented from entering the housing from the air outlet, and the baffling and waterproof effects can be achieved. Even if water enters the outlet, the water is guided by the protrusion 201a1 to the space between the protrusion 201a1 and the connection end 201a2 (which constitutes a gutter in combination), and is discharged through the drain hole. The notch 201b is U-shaped, splayed, etc. The lower case 201a is provided with a fixing portion 261 to fix the heat sink 260.
In one embodiment, a flow guiding rib is arranged in the housing, and air blown out by the fan is guided to the power device through the flow guiding rib so as to improve the heat dissipation effect.
The above embodiments are merely illustrative of the technical concepts and features of the present application, and the purpose of the embodiments is to enable those skilled in the art to understand the content of the present application and implement the present application, and not to limit the protection scope of the present application. All equivalent changes and modifications made within the spirit of the present application are intended to be covered by the scope of the present application.
Claims (10)
1. A battery pack, comprising:
a housing, on which a connection part and a plurality of air outlet grids are arranged,
the connecting part is used for being matched and connected with the charging device, the air outlet grids are arranged in an array,
dispose the air inlet duct on the side of shell, its width less than or equal to 1.2mm, the air inlet duct is used for the intercommunication the inner chamber and the external environment of battery package.
2. The battery pack according to claim 1,
each air outlet grid comprises a plurality of through holes which are used as air outlet holes.
3. The battery pack according to claim 1,
and a liquid discharge hole is formed in the bottom of the shell and used for discharging liquid.
4. A charging device for charging a battery pack according to any one of claims 1 to 3, comprising:
the battery pack comprises a shell, a battery pack and a battery pack, wherein a connecting part is arranged on the shell, and an electrode plate is arranged on the connecting part and is used for being connected with the battery pack in a matched manner;
the shell is provided with a plurality of air inlet grids which are arranged on the same side of the connecting part, the air inlet grids are arranged in an array, each air inlet grid comprises a plurality of through holes,
a fan and a power module are arranged in the shell, the projection of the fan on the side of the connecting part is at least partially overlapped with the plurality of air inlet grids, the power module is arranged on a heat dissipation plate, and the heat dissipation plate is positioned on the lower side of the fan,
the shell is provided with an air outlet, and the air outlet is arranged on the side of the shell close to the bottom opposite to the connecting part of the shell.
5. A charging arrangement as claimed in claim 4,
the shell is tetragonal, the connecting part is arranged on the top side of the shell, and the air outlet is arranged on the side surface of the shell and close to the bottom side opposite to the connecting part of the shell.
6. A charging arrangement as claimed in claim 4,
the connecting part is square, the plurality of air inlet grids are arranged on the inner side of the connecting part, an auxiliary air inlet is arranged on the connecting part and communicated with the inside of the shell, and the auxiliary air inlet is arranged opposite to the electrode plate.
7. A charging arrangement as claimed in claim 6,
the area of the auxiliary air inlet is more than or equal to 1/3 of the area of the battery air outlet.
8. A charging arrangement as claimed in claim 4,
a guide portion is provided in the housing, the guide portion guiding air flowing in from the auxiliary air inlet to the fan side to be mixed with air flowing in from the air inlet grille.
9. A charging arrangement as claimed in claim 4,
the shell comprises an upper shell and a lower shell,
a notch is arranged at the side surface end part side of the upper shell, the upper shell is combined with the lower shell, the notch forms an air outlet of the charging device,
the lower case has: a connecting end for connecting with the upper shell,
a protruding part is arranged in the lower shell, a gap is arranged between the protruding part and the connecting end,
the top of the protruding part is located on a plane higher than the plane of the connecting end in the horizontal direction,
after the upper shell and the lower shell are combined, the notch is covered by the protruding part, and the airflow passes through the protruding part and is baffled to flow out of the air outlet.
10. A charging assembly, comprising:
the battery pack according to any one of claims 1 to 3 and the charging device according to any one of claims 4 to 9,
after the battery pack is matched and arranged on the charging device,
the air inlet grids face the air outlet grids of the battery pack, the air inlet area on the air inlet grids combined by the plurality of punched holes is smaller than or equal to the air outlet area of the air outlet grids, cooling air enters the shell from the air inlet grooves, flows through the battery core, flows out of the air outlet grids of the battery pack, is introduced into the shell of the charging device through the air inlet grids, and air guided by the fan blows to the heat dissipation plate and flows out of the air outlet of the charging device to cool the charging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222886314.9U CN218648022U (en) | 2022-10-31 | 2022-10-31 | Battery pack, charging device and charging combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222886314.9U CN218648022U (en) | 2022-10-31 | 2022-10-31 | Battery pack, charging device and charging combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218648022U true CN218648022U (en) | 2023-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222886314.9U Active CN218648022U (en) | 2022-10-31 | 2022-10-31 | Battery pack, charging device and charging combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218648022U (en) |
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2022
- 2022-10-31 CN CN202222886314.9U patent/CN218648022U/en active Active
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