CN210668605U - Battery protection board, battery pack and smart machine - Google Patents

Battery protection board, battery pack and smart machine Download PDF

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Publication number
CN210668605U
CN210668605U CN201921634198.3U CN201921634198U CN210668605U CN 210668605 U CN210668605 U CN 210668605U CN 201921634198 U CN201921634198 U CN 201921634198U CN 210668605 U CN210668605 U CN 210668605U
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China
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soft
region
board
plate
hard
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CN201921634198.3U
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Chinese (zh)
Inventor
刘东峰
魏学文
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model provides a battery protection shield, battery pack and smart machine. The battery protection plate includes: protection shield body, charging connector and discharge connector. The protection shield body includes that the hard board is regional, and with the regional laminating of hard board soft board of being connected regional, the soft board is regional including the soft board region that charges and the soft board region that discharges. The charging connector is arranged in the charging soft board area. The discharge connector is arranged in the discharge soft board area. This battery protection shield can reduce the production of heat effectively to do benefit to the heat dissipation, avoid the trouble problem because of high temperature takes place, do benefit to battery protection shield steady operation, and effectively protect battery pack and smart machine work.

Description

Battery protection board, battery pack and smart machine
Technical Field
The utility model relates to an intelligent equipment technical field especially relates to a battery protection shield, battery pack and intelligent equipment.
Background
Along with the research to smart machine quick charge, adopt the battery protection shield including charging connector and discharge connector to protect the battery at present to prevent the overcharge of battery electricity core, overdischarge, short circuit scheduling problem. During the rapid charging process, a large current flows through the battery protection plate, which makes the temperature of the battery protection plate easily rise, easily causing malfunction.
SUMMERY OF THE UTILITY MODEL
The present disclosure provides an improved battery protection board, battery pack and smart machine.
One aspect of the present disclosure provides a battery protection plate including:
the protection plate body comprises a hard plate area and a soft plate area which is connected with the hard plate area in a laminating mode, and the soft plate area comprises a charging soft plate area and a discharging soft plate area;
the charging connector is arranged in the charging soft board area; and
and the discharge connector is arranged in the discharge soft board area.
Optionally, the flexible board area further comprises a transition flexible board area, and the transition flexible board area is connected between the hard board area and the charging flexible board area in a laminating mode.
Optionally, the transition soft board area is also connected between the hard board area and the discharge soft board area in a laminating way.
Optionally, the charging soft board area and the discharging soft board area are oppositely arranged on two sides of the transition soft board area.
Optionally, the charging soft board area and the discharging soft board area are adjacently arranged on two sides of the transition soft board area.
Optionally, the hardboard region includes at least two layers of hardboards and locates at least four layers of soft boards between at least two layers of hardboards, at least two layers the soft board deviates from the hardboard region outwards extends and forms the soft board region that charges, at least two layers the soft board deviates from the hardboard region outwards extends and forms the soft board region that discharges.
Optionally, at least four layers of the flexible boards extend outwards away from the hard board area to form a transition flexible board area, and at least two layers of the flexible boards in the transition flexible board area extend outwards away from the transition flexible board area to form the charging flexible board area; and/or
At least two layers of the soft boards in the transition soft board area extend outwards to form the discharge soft board area.
Optionally, the charging flexible printed circuit board region is bent towards one side of the board surface where the hard printed circuit board region is located, and the discharging flexible printed circuit board region is bent towards the other side of the board surface where the hard printed circuit board region is located.
Another aspect of the present disclosure provides a battery assembly including:
an electric core;
an electrode; and
the battery protection plate of any one of the above-mentioned, the battery protection plate being connected to the battery cell through the electrode.
Another aspect of the present disclosure provides a smart device including the battery protection board of any one of the above-mentioned, or including the battery pack of the above-mentioned.
The battery protection board, the battery pack and the intelligent device provided by the embodiment of the disclosure have at least the following beneficial effects:
in the battery protection board, the battery pack and the intelligent device provided by the embodiment of the disclosure, the hard board region and the soft board region of the protection board body are connected in a laminating manner, so that the arrangement of bonding pads is avoided, the effective arrangement area of components is reduced, the sparse arrangement of the components is facilitated, the heat dissipation is facilitated, the welding of the bonding pads is avoided, the internal resistance of the protection board body is increased, and the heat generated due to the internal resistance is reduced. This battery protection shield can reduce the production of heat effectively to do benefit to the heat dissipation, avoid the trouble problem because of high temperature takes place, do benefit to battery protection shield steady operation, and effectively protect battery pack and smart machine work.
Drawings
Fig. 1 is a schematic structural view illustrating a battery protection plate according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating the construction of a battery assembly according to an exemplary embodiment of the present disclosure;
fig. 3 is a schematic structural view of a battery protection plate according to an exemplary embodiment of the present disclosure;
fig. 4 is a schematic structural view illustrating a battery protection plate according to an exemplary embodiment of the present disclosure;
fig. 5 is a schematic structural view illustrating a battery protection plate according to an exemplary embodiment of the present disclosure;
3 fig. 36 3 is 3 a 3 cross 3- 3 sectional 3 view 3 of 3 the 3 battery 3 protection 3 plate 3 shown 3 in 3 fig. 34 3 of 3 the 3 present 3 disclosure 3 taken 3 along 3 line 3 a 3- 3 a 3. 3
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprises" or "comprising" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
As used in this disclosure and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Fig. 1 is a schematic structural view illustrating a battery protection plate 100 according to an exemplary embodiment. In some embodiments, referring to fig. 1, the battery protection plate 100 includes: a hard board 110, a charging flexible board 120, a discharging flexible board 130, a charging connector 140 and a discharging connector 150. One end of the hard board 110 is welded to the soft charging board 120 through a bonding pad 160, the other end of the hard board 110 is welded to the soft discharging board 130 through a bonding pad 160, the charging connector 140 is disposed on the soft charging board 120, and the discharging connector 150 is disposed on the soft discharging board 130. However, the hard board 110 and the soft charging board 120, and the hard board 110 and the soft discharging board 130 are connected by the bonding pads 160, so that the effective layout area of the components on the battery protection board 100 is reduced, the components are densely arranged, and the temperature of the battery protection board 100 is easily raised. Moreover, the connection of the bonding pads 160 increases the internal resistance of the battery protection plate 100, which is likely to heat the battery protection plate 100, thus being not beneficial to heat dissipation of the battery protection plate 100, and further being likely to cause failure.
In order to solve the above problem, an embodiment of the present disclosure provides a battery protection plate, including: protection shield body, charging connector and discharge connector. The protection plate body comprises a hard plate area and a soft plate area connected with the hard plate area in a laminating mode, and the soft plate area comprises a charging soft plate area and a discharging soft plate area. The charging connector is arranged in the charging soft board area. The discharge connector is arranged in the discharge soft board area. According to the battery protection board provided by the embodiment of the disclosure, the hard board region and the soft board region of the protection board body are connected in a laminating manner, so that the arrangement of bonding pads is avoided, the effective arrangement area of components is reduced, the sparse arrangement of the components for heat dissipation is facilitated, the welding of the bonding pads is avoided, the internal resistance of the protection board body is increased, and the heat generated due to the internal resistance is reduced. This battery protection shield can reduce the production of heat effectively to do benefit to the heat dissipation, avoid the trouble problem because of high temperature takes place, do benefit to battery protection shield steady operation, and effectively protect battery pack and smart machine work.
Some embodiments of the present disclosure provide a smart device, comprising: fuselage and battery pack. The fuselage is equipped with the installation cavity, and the inner wall of installation cavity is equipped with the connection contact that charges and connects the contact that discharges. The charging connection contact is used for being electrically connected with a charging connector of the battery assembly so as to charge the battery assembly through the intelligent device. The discharging connection contact is used for being electrically connected with a discharging connector of the battery assembly so as to supply power to the intelligent equipment through the battery assembly.
In the embodiments of the present disclosure, the smart device includes but is not limited to: mobile phones, tablet computers, ipads, digital broadcast terminals, messaging devices, game consoles, medical devices, fitness devices, personal digital assistants, smart wearable devices, smart televisions, and other smart home products, and the like.
Fig. 2 is a schematic diagram illustrating the structure of a battery assembly according to an exemplary embodiment of the present disclosure. Referring to fig. 2, the battery assembly 200 includes a cell 210, an electrode 220, and a battery protection plate 230. The battery protection plate 230 is connected to the battery cell 210 through the electrode 220. The battery protection plate 230 is used to control whether the battery cells 210 are powered on or off, and the charging current and the discharging current of the battery cells 210, so as to protect the battery cells 210. In some embodiments, the cells 210 include lithium ion cells 210.
Fig. 3 is a schematic structural diagram of a battery protection plate 230 according to an exemplary embodiment of the present disclosure. Referring to fig. 3, the battery protection plate 230 includes: a protective plate body 231, a charging connector 232, and a discharging connector 233. The protection plate body 231 includes a hard plate region 234, and a soft plate region 235 laminated with the hard plate region 234, and the soft plate region 235 includes a charging soft plate region 236 and a discharging soft plate region 237. The charging connector 232 is disposed in the charging flexible board area 236. The discharge connector 233 is provided in the discharge flexible board region 237. It should be noted that the hard board region 234 is harder than the soft board region 235, the hard board region 234 is not easy to bend, the stability is good, and the soft board region 235 is easy to bend, and can be matched with smart devices with different installation cavities. Through the cooperation of the hard board region 234 and the soft board region 235, the structure of the protection board body 231 is stable, and the protection board body is suitable for intelligent devices with different structures.
According to the battery protection plate 230 provided by the embodiment of the present disclosure, the hard plate region 234 and the soft plate region 235 of the protection plate body 231 are connected in a laminated manner, so as to avoid the arrangement of pads to reduce the effective layout area of components, facilitate the sparse layout of components to dissipate heat, avoid the arrangement of pads to increase the internal resistance of the protection plate body 231, and reduce the heat generated due to the internal resistance. This battery protection board 230 can reduce the production of heat effectively to do benefit to the heat dissipation, avoid the trouble problem because of high temperature takes place, do benefit to battery protection board 230 and stabilize work, and effectively protect battery pack 200 and smart machine work. And, soft board region 235 makes battery protection shield 230 have the bendability, not only conveniently with the smart machine cooperation that has different structure installation chambeies be connected, but also based on the flexible performance of soft board region 235, when the smart machine falls, can avoid charging connector 232 and/or discharging connector 233 and protect between shield body 231 and the smart machine to break away from each other. In addition, because the hard board region 234 and the soft board region 235 do not need to be welded through a welding pad, the difficulty of attaching other components to the protection board body 231 is reduced, the difficulty of manufacturing the battery pack is reduced, and the potential risk caused by poor welding of the welding pad is effectively reduced.
Fig. 4 is a schematic structural diagram illustrating a battery protection plate 230 according to an exemplary embodiment of the present disclosure. In some embodiments, referring to fig. 4, the flexible board region 235 further includes a transitional flexible board region 238, which is laminated between the rigid board region 234 and the charging flexible board region 236. Through setting up transition soft board region 238, the soft board region 236 that conveniently charges is buckled, and then conveniently makes the charging connection contact that the lock of charging connector 232 is connected to smart machine, does benefit to battery protection board 230 and installs steadily in smart machine, and this makes battery protection board 230 be applicable to the smart machine of isostructure. Moreover, the transition soft board region 238 is connected with the hard board region 234 and the charging soft board region 236 in a laminating manner, rather than being connected through a bonding pad, so that increase of internal resistance at the connection position is avoided, reduction of heat generation of the protection board body 231 is facilitated, and effective heat dissipation area is increased.
In some embodiments, with continued reference to fig. 4, the transition flexible printed circuit board area 238 is also laminated between the rigid printed circuit board area 234 and the discharge flexible printed circuit board area 237. Through setting up transition soft board region 238, the soft board region 237 that conveniently discharges buckles, and then conveniently makes the connector 233 lock of discharging connect in the discharge connection contact of smart machine, does benefit to battery protection board 230 and installs steadily in the smart machine, and this makes battery protection board 230 be applicable to the smart machine of isostructure. Moreover, the transition soft board region 238 is connected with the hard board region 234 and the discharge soft board region 237 in a laminating manner, rather than in a bonding pad manner, so that the increase of internal resistance at the connection position is avoided, the reduction of the heat productivity of the protection board body 231 is facilitated, and the effective heat dissipation area is increased.
In some embodiments, with continued reference to fig. 4, the charging softboard area 236 is disposed on opposite sides of the transition softboard area 238 from the discharging softboard area 237. Thus, heat dissipation from the charging soft plate region 236 and the discharging soft plate region 237 is facilitated, and the protection plate body 231 of this structure is easily manufactured.
Fig. 5 is a schematic structural diagram illustrating a battery protection plate 230 according to an exemplary embodiment of the present disclosure. In other embodiments, referring to fig. 5, the charging flexible printed circuit board area 236 and the discharging flexible printed circuit board area 237 are disposed adjacent to each other on both sides of the transition flexible printed circuit board area 238. The protection plate body 231 of this structure is easy to manufacture, and is favorable to reducing the production cost.
The present disclosure gives the following examples for how the hard board region 234 and the soft board region 235 are laminated:
3 fig. 36 3 illustrates 3 a 3 cross 3- 3 sectional 3 view 3 of 3 the 3 battery 3 protection 3 plate 3 230 3 shown 3 in 3 fig. 34 3 along 3 the 3 line 3 a 3- 3 a 3 of 3 the 3 present 3 disclosure 3. 3 Referring to fig. 6, the hard plate region 234 includes at least two hard plates 239 and at least four soft plates 240 disposed between the at least two hard plates 239, the at least two soft plates 240 extend outward away from the hard plate region 234 to form a charging soft plate region 236, the at least two soft plates 240 extend outward away from the hard plate region 234 to form a discharging soft plate region 237, the discharging soft plate region 237 is not shown in fig. 6, and the discharging soft plate region 237 and the charging soft plate region 236 are formed in the same manner. It should be noted that both outermost layers of the hard board region 234 are hard boards 239, and the soft board 240 is disposed between the two hard boards 239. In some embodiments, the stable hard plate region 234 and the soft plate region 235 with better bending property can be formed in a simple manner, which facilitates the production and manufacture of the battery protection plate 230. Moreover, at least two layers of soft boards 240 in the charging soft board area 236 are provided with charging circuits, and at least two layers of soft boards 240 in the discharging soft board area 237 are provided with discharging circuits, so that the charging circuits and the discharging circuits are not affected with each other, and the reduction of thermal resistance and the convenience of heat dissipation are facilitated.
In some embodiments, with continued reference to fig. 6, at least four layers of flexible sheets 240 extend outwardly away from the rigid sheet region 234 to form a transitional flexible sheet region 238, and at least two layers of flexible sheets 240 of the transitional flexible sheet region 238 extend outwardly away from the transitional flexible sheet region 238 to form a charging flexible sheet region 236; and/or at least two layers of flexible boards 240 of the transition flexible board area 238 extend outwards to form the discharge flexible board area 237 away from the transition flexible board area 238. With this configuration, the stability of the transition soft plate region 238 is better than that of the charging soft plate region 236 and the discharging soft plate region 237, which not only provides structural stability to the battery protection plate 230, but also facilitates bending of the charging soft plate region 236 and the discharging soft plate region 237. In addition, the manufacturing method is simple, and the battery protection plate 230 is convenient to produce and manufacture.
The number of layers of the hard board region 234 and the number of layers of the soft board region 235 in the embodiment of the present disclosure are not specifically limited, and a charging line and a discharging line may be designed. In some embodiments, with continued reference to fig. 6, the hard plate region 234 includes two hard plates 239 and four soft plates 240, the four soft plates 240 being laminated between the two hard plates 239. Four layers of soft boards 240 extend outwards away from the hard board area 234 to form a transition soft board area 238, two layers of soft boards 240 of the transition soft board area 238 extend outwards away from the transition soft board area 238 to form a charging soft board area 236, and the other two layers of soft boards 240 extend outwards away from the transition soft board area 238 to form a discharging soft board area 237. In the embodiment of the present disclosure, each hard board 239 or each soft board 240 is provided with a metal layer and an insulating layer, so as to facilitate the conduction and insulation of the circuit. Through holes or blind holes are punched on the hard board 239 and the soft board 240, communicated lines can be arranged.
The embodiment of the present disclosure can reduce the number of blind holes arranged in the circuit by laminating the hard board region 234 and the soft board region 235, and arranging the hard board 239 and the soft board 240 by laminating, rather than providing pad welding, and is beneficial to reducing the manufacturing cost and facilitating the arrangement of the circuit.
In the embodiment of the present disclosure, the charging flexible printed circuit board area 236 and the discharging flexible printed circuit board area 237 may be bent in different directions. In some embodiments, the charging soft plate area 236 and the discharging soft plate area 237 are bent toward one side of the plate surface where the hard plate area 234 is located. In some embodiments, the charging soft board area 236 is bent toward one side of the board where the hard board area 234 is located, and the discharging soft board area 237 is bent toward the other side of the board where the hard board area 234 is located, so that a heat dissipation space is formed between the charging soft board area 236 and the discharging soft board area 237, which is beneficial for heat dissipation.
For the embodiment of the battery assembly 200 and the smart device, since it substantially corresponds to the embodiment of the battery protection plate 230, reference may be made to the partial description of the embodiment of the battery protection plate 230. The battery pack 200 embodiment, the smart device embodiment and the battery protection plate 230 embodiment are complementary.
The above embodiments of the present disclosure may be complementary to each other without conflict.
The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims (10)

1. A battery protection plate, characterized by comprising:
the protection plate body comprises a hard plate area and a soft plate area which is connected with the hard plate area in a laminating mode, and the soft plate area comprises a charging soft plate area and a discharging soft plate area;
the charging connector is arranged in the charging soft board area; and
and the discharge connector is arranged in the discharge soft board area.
2. The battery protection plate as claimed in claim 1, wherein the flexible board region further includes a transitional flexible board region laminated between the hard board region and the charging flexible board region.
3. The battery protection panel according to claim 2, wherein the transition soft plate region is further laminated between the hard plate region and the discharge soft plate region.
4. The battery protection plate according to claim 3, wherein the charging soft plate region and the discharging soft plate region are disposed at two sides of the transition soft plate region opposite to each other.
5. The battery protection plate according to claim 3, wherein the charging soft plate region and the discharging soft plate region are disposed adjacent to each other at two sides of the transition soft plate region.
6. The battery protection plate as claimed in claim 1, wherein the hard plate region includes at least two hard plates and at least four soft plates disposed between the at least two hard plates, at least two soft plates extend outward away from the hard plate region to form the charging soft plate region, and at least two soft plates extend outward away from the hard plate region to form the discharging soft plate region.
7. The battery protection plate according to claim 6, wherein at least four layers of the flexible boards extend outwards away from the hard board region to form a transition flexible board region, and at least two layers of the flexible boards in the transition flexible board region extend outwards away from the transition flexible board region to form the charging flexible board region; and/or
At least two layers of the soft boards in the transition soft board area extend outwards to form the discharge soft board area.
8. The battery protection board according to any one of claims 1 to 7, wherein the charging soft board region is bent toward one side of the board surface where the hard board region is located, and the discharging soft board region is bent toward the other side of the board surface where the hard board region is located.
9. A battery assembly, comprising:
an electric core;
an electrode; and
the battery protection sheet of any one of claims 1 to 8, which is connected to the cell through the electrode.
10. A smart device comprising the battery protection board of any one of claims 1-8, or comprising the battery assembly of claim 9.
CN201921634198.3U 2019-09-27 2019-09-27 Battery protection board, battery pack and smart machine Active CN210668605U (en)

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Application Number Priority Date Filing Date Title
CN201921634198.3U CN210668605U (en) 2019-09-27 2019-09-27 Battery protection board, battery pack and smart machine

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Application Number Priority Date Filing Date Title
CN201921634198.3U CN210668605U (en) 2019-09-27 2019-09-27 Battery protection board, battery pack and smart machine

Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113764833A (en) * 2020-06-05 2021-12-07 东莞新能德科技有限公司 Battery and electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113764833A (en) * 2020-06-05 2021-12-07 东莞新能德科技有限公司 Battery and electronic device

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