CN108666455B - Battery pack and electronic device using same - Google Patents

Battery pack and electronic device using same Download PDF

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Publication number
CN108666455B
CN108666455B CN201810412124.9A CN201810412124A CN108666455B CN 108666455 B CN108666455 B CN 108666455B CN 201810412124 A CN201810412124 A CN 201810412124A CN 108666455 B CN108666455 B CN 108666455B
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Prior art keywords
electronic device
battery
shell
plate
circuit board
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CN201810412124.9A
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Chinese (zh)
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CN108666455A (en
Inventor
郭晓凯
唐尹
王雷
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SZ DJI Technology Co Ltd
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SZ DJI Technology Co Ltd
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Priority to CN201810412124.9A priority Critical patent/CN108666455B/en
Publication of CN108666455A publication Critical patent/CN108666455A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • 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

Abstract

The invention discloses a battery pack and an electronic device using the same. The battery assembly comprises a shell, a battery core and a tab plate which are arranged in the shell, and an electric connector. The battery cell further comprises a tab, the tab is electrically connected with the tab plate, and the electric connector is electrically connected with the tab. Even battery pack produces vibrations in the use, the utmost point ear board also can not receive the force, and utmost point ear can not take place to warp or split, guarantees battery pack and applied this battery pack's electron device's safety in utilization.

Description

Battery pack and electronic device using same
The application is a divisional application of the Chinese patent application with the application number of 201580002807.1 (application date: 2015, 6 and 1; invention name: battery pack and electronic device using the battery).
Technical Field
The invention relates to the field of batteries, in particular to a circuit board fixing structure of a battery.
Background
At present, electronic devices such as portable mobile terminals, photographic equipment, electric tools, unmanned aerial vehicles, model airplane equipment and the like are mostly provided with replaceable batteries, and particularly, lithium batteries which can be repeatedly used are most widely applied.
A typical battery includes a battery case, one or more cells, tab plates, and a protective plate. Wherein the battery core is accommodated in the interior of the battery shell. The battery core is welded on the pole lug plate through a pole lug, and the pole lug is electrically connected with an electric connector of the battery through the pole lug plate, so that the battery core is electrically connected with the electric connector. The polar ear plate and the protective plate are fixedly connected with the battery shell through a limiting mechanism arranged on the battery shell. The limiting mechanism can be a limiting groove, a limiting convex column or a screw and the like.
During the use of the electronic device, especially when the electronic device is an electric tool or an unmanned aerial vehicle or other equipment, the electronic device is very easy to generate vibration. The battery cell usually accounts for 90% of the weight of the battery, and because the battery cell is fixed only by welding the tab and the tab plate, the tab can be pulled by the battery cell in the vibration process of the battery. Along with the increase of the number of times of use, the utmost point ear that electric core can drive electric core warp, splits even, and the battery explosion appears in the serious, brings the potential safety hazard for electron device's use.
Disclosure of Invention
In view of the foregoing, the present invention provides a battery assembly and an electronic device using the same.
The utility model provides a battery pack, its includes the casing, sets up in inside electric core and the circuit board subassembly of casing and electric connector, the casing comprises lid and lower casing, circuit board subassembly include utmost point otic placode and electric connector fixed plate, its characterized in that, electric connector is fixed in on the electric connector fixed plate, the lid with the connection can be dismantled to the casing down, utmost point otic placode and casing phase separation's setting.
Furthermore, a gap formed between the battery cell and the shell is filled with a filler for preventing the battery cell from shaking in the shell.
Further, the lower shell comprises a containing cavity for containing the battery cell and an opening part communicated with the containing cavity, and the cover body is arranged on the opening part of the lower shell.
Furthermore, a blocking part for blocking the tab plate from coming out of the accommodating cavity is further arranged on the lower shell.
Further, the blocking part is a protruding part, a flange or a blocking wall protruding from the inner side wall of the lower shell.
Furthermore, a hollow part is formed in the shell and used for increasing the contact area between the battery cell and the air.
Further, the electric connector fixing plate is fixedly connected with the shell.
Furthermore, the battery pack further comprises a protection plate, the protection plate is arranged above the pole ear plate and fixedly connected with the shell, and the protection plate is used for covering and protecting the circuit board assembly.
Further, the circuit board assembly and the protection plate are arranged in a containing cavity formed in the lower shell.
Further, the electric connector is also electrically connected with the tab.
The utility model provides an electronic device, includes that electron device body and detachable connect or fixed connection are at the battery pack on electron device, battery pack includes the casing, set up and the inside electric core and the circuit board subassembly of casing and electric connector, the casing comprises lid and lower casing, circuit board subassembly include utmost point otic placode and with the electric connector fixed plate, its characterized in that, electric connector is fixed in on the electric connector fixed plate, the lid with the connection can be dismantled to the casing down, utmost point otic placode and casing phase separation's setting.
Furthermore, the electronic device is an unmanned aerial vehicle, an electric cradle head or a remote control combat tank.
Furthermore, a gap formed between the battery cell and the shell is filled with a filler for preventing the battery cell from shaking in the shell.
Further, the lower shell comprises a containing cavity for containing the battery cell and an opening part communicated with the containing cavity, and the cover body is arranged on the opening part of the lower shell.
Furthermore, a blocking part for blocking the tab plate from coming out of the accommodating cavity is further arranged on the lower shell.
Further, the blocking part is a protruding part, a flange or a blocking wall protruding from the inner side wall of the lower shell.
Furthermore, a hollow part is formed in the shell and used for increasing the contact area between the battery cell and the air.
Further, the electric connector fixing plate is fixedly connected with the shell.
Furthermore, the battery pack further comprises a protection plate, the protection plate is arranged above the pole ear plate and fixedly connected with the shell, and the protection plate is used for covering and protecting the circuit board assembly.
Further, the circuit board assembly and the protection plate are arranged in an accommodating cavity formed in the lower shell.
Further, the electric connector is also electrically connected with the tab.
In the battery assembly, the polar lug plate and the shell are arranged separately, and even if the battery assembly vibrates in the using process, the polar lug plate is not subjected to the pulling force of the electric core, so that the polar lug cannot deform or break, the polar lug plate and the polar lug can be ensured not to be damaged by the battery assembly under any condition, and the use safety of the battery assembly and an electronic device using the battery assembly is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present invention.
Fig. 2 is a schematic top view of the battery module shown in fig. 1.
Fig. 3 is a side view schematically illustrating the battery module of fig. 1.
Fig. 4 is an exploded view of the battery module of fig. 1.
Fig. 5 is a schematic cross-sectional view of the battery assembly of fig. 3 taken along V-V.
Fig. 6 is a partially enlarged schematic view of VI in fig. 5.
Fig. 7 is a schematic cross-sectional view of the battery module of fig. 2 taken along VII-VII.
Description of the main elements
Figure GDA0001686652460000031
Figure GDA0001686652460000041
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
Referring to fig. 1-3, a structure of a battery assembly 100 according to an embodiment of the invention is schematically illustrated. The battery assembly 100 includes a casing 10, a battery cell 40 accommodated in the casing 10, and electronic components (not shown) such as a circuit board accommodated in the casing 10. The casing 10 is used to protect the battery cell 40 and electronic components such as a circuit board, which are accommodated in the casing 10. The battery cell 40 may include one or more battery cells.
Referring to fig. 4, in the present embodiment, the housing 10 includes a cover 11 and a lower housing 12. A containing cavity (not shown) for containing the battery cell 40 is formed in the lower casing 12, the lower casing 12 further includes an opening portion 14 communicated with the containing cavity, and the battery cell 40 is loaded into the containing cavity through the opening portion 14.
The cover 11 is detachably connected to the lower case 12 and covers the opening 14 of the lower case 12. In the present embodiment, the cover 11 and the lower housing 12 are detachably connected by a snap-fit manner. In other embodiments, the cover 11 and the lower housing 12 may be detachably fixed by screws, glue, or other methods.
In this embodiment, the lower case 12 is further provided with a hollow portion 13 communicated with the accommodating cavity, the hollow portion 13 can be used to increase a contact area between the battery cell 40 and air, so as to perform a heat dissipation function, and meanwhile, the hollow portion 13 can also reduce the material and weight of the case 10, so as to reduce the weight of the battery assembly 100.
In the present embodiment, the lower case 12 has a substantially rectangular parallelepiped shape, and the lower case 12 is formed by joining a first lower case 121 and a second lower case 122. In other embodiments, the lower housing 12 may be integrally formed.
The battery assembly 100 further includes a circuit board assembly 200 disposed in the case 10 and a protection plate 50. The circuit board assembly 200 includes a tab plate 20 and an electrical connector mounting plate 30. In the present embodiment, the circuit board assembly 200 and the protection plate 50 are disposed in a receiving cavity formed in the lower case 12 of the case 10.
The battery assembly 100 further includes an electrical connector 70, and the electrical connector 70 is used for power transmission and electrical signal transmission of the battery assembly 100.
Referring to fig. 5 to 6, the battery cell 40 further includes a tab 41, and the tab 41 is welded to the tab plate 20. The tab plate 20 is arranged separately from the housing 10, i.e. the housing 10 is not fixedly connected to the tab plate 20.
The electrical connector fixing plate 30 is fixedly connected to the housing 10, and the electrical connector fixing plate 30 is used for fixing the electrical connector 70. In this embodiment, the electrical connector fixing plate 30 is fixed to the lower housing 12, and specifically, the electrical connector fixing plate 30 may be fixedly connected to the lower housing 12 by means of a snap, a fixing rib, a positioning boss, or an adhesive. The electrical connector 70 is also electrically connected to the tab 41, so that electric energy and electrical signal can be transmitted between the tab 41 and the battery cell 40. In one embodiment, the electrical connector 70 is electrically connected to the tab 41 by a wire, a printed circuit, or the like.
The protection plate 50 is fixedly connected with the housing 10. The protection plate 50 is disposed above the circuit board assembly 200 for covering and protecting the circuit board assembly 200, the tab 41 and other electronic components. In the present embodiment, the protection plate 50 is fixed in the cover 11 of the housing 10, and specifically, the protection plate 50 may be fixedly connected to the cover 11 by means of a snap, a fixing rib, a positioning boss, or an adhesive.
A gap 60 formed between the battery cell 40 and the lower casing 12 is further filled with a filler, and the filler is used for preventing the battery cell 40 from shaking in the lower casing 12. The filler can be foam, glue, adhesive tape or the like.
Referring to fig. 7, in the present embodiment, the tab plate 20 is disposed in the accommodating cavity of the lower shell 12 of the shell 10 and is separated from the shell 10. The lower housing 12 is further provided with at least one blocking portion 123, and the blocking portion 123 is used for blocking the pole lug plate 20 from coming out of the accommodating cavity of the lower housing 12. In one embodiment, the stop 123 is a protrusion, a flange or a wall protruding from an inner sidewall (not numbered) of the lower housing 12.
In the battery assembly 100 using the circuit board assembly 200 of the present embodiment, the tab plate 20 is separated from the housing 10, and even if the battery assembly 100 vibrates during use, the tab plate 20 is not subjected to a pulling force of the battery cell 40, so that the tab 41 is not deformed or broken, and the tab plate 20 and the tab 41 are not damaged by the battery assembly 100 under any conditions, thereby ensuring the use safety of the battery assembly 100 and an electronic device using the battery assembly 100.
The battery pack 100 may be used in various electronic devices such as an unmanned aerial vehicle, a motorized pan and tilt head, a remote control chariot, a consumer electronic device, and the like.
It will be appreciated by those skilled in the art that the above embodiments are illustrative only and not intended to be limiting, and that suitable modifications and variations may be made to the above embodiments without departing from the true spirit and scope of the invention.

Claims (19)

1. A battery pack comprises a shell, an electric core and a circuit board assembly which are arranged in the shell, and an electric connector, wherein the shell consists of a cover body and a lower shell, the circuit board assembly comprises a polar lug plate and an electric connector fixing plate, and the battery pack is characterized in that the electric connector is fixed on the electric connector fixing plate, the cover body is detachably connected with the lower shell, and the polar lug plate and the shell are arranged in a separated mode; wherein
The internal chamber that holds that is used for the holding that is formed with of inferior valve the electric core, utmost point otic placode sets up hold in the chamber, still be equipped with on the casing down and be used for blockking utmost point otic placode is followed hold the portion that blocks that deviates from in the chamber.
2. The battery assembly of claim 1, wherein a gap formed between the cell and the casing is filled with a filler for preventing the cell from shaking within the casing.
3. The battery module according to claim 1, wherein the lower case further comprises an opening portion communicating with the receiving chamber, and the lid body is provided to cover the opening portion of the lower case.
4. The battery module according to claim 1, wherein the blocking portion is a protrusion protruding from an inner sidewall of the lower case.
5. The battery assembly of claim 1, wherein the housing has a hollow-out portion formed thereon, and the hollow-out portion is configured to increase a contact area between the battery cell and air.
6. The battery pack of claim 1, wherein the electrical connector securing plate is fixedly attached to the housing.
7. The battery pack of claim 1 further comprising a protective plate disposed over the tab and fixedly attached to the housing, the protective plate for concealing and protecting the circuit board assembly.
8. The battery pack according to claim 7, wherein the circuit board assembly and the protective plate are disposed in a receiving cavity formed in the lower case.
9. The battery assembly of claim 1 wherein the electrical connector is further electrically connected to the tab.
10. An electronic device comprises an electronic device body and a battery assembly which is detachably connected or fixedly connected to the electronic device, wherein the battery assembly comprises a shell, an electric core and a circuit board assembly which are arranged in the shell, and an electric connector, the shell consists of a cover body and a lower shell, the circuit board assembly comprises a polar lug plate and an electric connector fixing plate, and the electronic device is characterized in that the electric connector is fixed on the electric connector fixing plate, the cover body is detachably connected with the lower shell, and the polar lug plate and the shell are arranged in a separated mode; wherein
The internal chamber that holds that is used for the holding that is formed with of inferior valve the electric core, utmost point otic placode sets up hold in the chamber, still be equipped with on the casing down and be used for blockking utmost point otic placode is followed hold the portion that blocks that deviates from in the chamber.
11. The electronic device of claim 10, wherein the electronic device is an unmanned aerial vehicle, a motorized pan/tilt head, or a remotely controlled combat vehicle.
12. The electronic device of claim 10, wherein a gap formed between the battery cell and the housing is filled with a filler for preventing the battery cell from shaking in the housing.
13. The electronic device according to claim 10, wherein the lower case further includes an opening portion communicating with the accommodation chamber, and the cover body is provided to cover the opening portion of the lower case.
14. The electronic device according to claim 10, wherein the blocking portion is a protrusion, a flange, or a stopper protruding from an inner sidewall of the lower case.
15. The electronic device of claim 10, wherein a hollow-out portion is formed in the housing, and the hollow-out portion is configured to increase a contact area between the battery cell and air.
16. The electronic device of claim 10, wherein the electrical connector securing plate is fixedly attached to the housing.
17. The electronic device of claim 10, wherein the battery pack further comprises a protective plate disposed over the tab and fixedly attached to the housing, the protective plate for concealing and protecting the circuit board assembly.
18. The electronic device according to claim 17, wherein the circuit board assembly and the protective plate are disposed in a receiving cavity formed in the lower case.
19. The electronic device of claim 10 wherein the electrical connector is further electrically connected to the tab.
CN201810412124.9A 2015-06-01 2015-06-01 Battery pack and electronic device using same Active CN108666455B (en)

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CN201810412124.9A CN108666455B (en) 2015-06-01 2015-06-01 Battery pack and electronic device using same
PCT/CN2015/080524 WO2016192017A1 (en) 2015-06-01 2015-06-01 Battery assembly and electronic device using the battery
CN201580002807.1A CN105794013B (en) 2015-06-01 2015-06-01 The electronic device of battery component and the application battery component

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CN110800129A (en) * 2018-08-31 2020-02-14 深圳市大疆创新科技有限公司 Battery and agricultural unmanned aerial vehicle with same
CN111028478A (en) * 2019-12-30 2020-04-17 苏州普康智慧养老产业科技有限公司 Intelligent home old-age-care home-based service calling system

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CN202285251U (en) * 2011-09-29 2012-06-27 北京神州远望科技有限公司 Special-shaped lithium battery module
CN103701163A (en) * 2013-12-06 2014-04-02 深圳市大疆创新科技有限公司 Battery, aircraft with battery and battery control method
CN104218207A (en) * 2014-07-16 2014-12-17 浙江超威创元实业有限公司 Lithium ion battery module structure

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CN105794013A (en) 2016-07-20
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CN108666455A (en) 2018-10-16

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