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CN212752722U - Battery protection board and mobile terminal - Google Patents

Battery protection board and mobile terminal Download PDF

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Publication number
CN212752722U
CN212752722U CN202021357539.XU CN202021357539U CN212752722U CN 212752722 U CN212752722 U CN 212752722U CN 202021357539 U CN202021357539 U CN 202021357539U CN 212752722 U CN212752722 U CN 212752722U
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China
Prior art keywords
board
hard
battery protection
soft
electronic components
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CN202021357539.XU
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Chinese (zh)
Inventor
张利华
张伟杰
张强波
骆延昕
张胜林
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Sky Chip Interconnection Technology Co Ltd
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Sky Chip Interconnection Technology Co Ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
    • H05K1/0203—Cooling of mounted components
    • H05K1/0209—External configuration of printed circuit board adapted for heat dissipation, e.g. lay-out of conductors, coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H05K3/361—Assembling flexible printed circuits with other printed circuits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)

Abstract

本实用新型提供一种电池保护板、移动终端，所述电池保护板包括：硬板及软板，其中，软板及硬板互相连接，硬板的一表面贴装有电子元器件。封装层，覆盖于硬板装载有电子元器件的一侧表面，并配合硬板将电子元器件封装。其中，封装层封装电子元器件，提高了电池保护板的散热能力防水能力。

Figure 202021357539

The utility model provides a battery protection board and a mobile terminal. The battery protection board includes a hard board and a soft board, wherein the soft board and the hard board are connected to each other, and electronic components are mounted on a surface of the hard board. The encapsulation layer covers the side surface of the hard board on which the electronic components are loaded, and cooperates with the hard board to encapsulate the electronic components. Among them, the encapsulation layer encapsulates the electronic components, which improves the heat dissipation and waterproof capability of the battery protection board.

Figure 202021357539

Description

Battery protection board and mobile terminal
Technical Field
The utility model relates to a battery technology field especially relates to a battery protection shield, mobile terminal.
Background
The battery protection board is used as a necessary component in the modern mobile phone and is mainly used for overcharge and overcurrent protection. The battery protection plate structure proposed in the current market is mainly to mount elements on the surface of a hard plate first and then weld a soft plate structure. However, the main problems of the hard board surface element mounting and the soft board structure re-welding are poor reliability of a soldering point and temperature rise, and the existing battery protection board element is exposed, so that the waterproof performance and the heat dissipation performance are poor.
In order to solve the above problem, the utility model provides a novel battery protection shield.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides a battery protection shield, mobile terminal to solve the poor problem of current battery protection shield waterproof nature and thermal diffusivity.
In order to solve the technical problem, the utility model discloses a technical scheme be: provided is a battery protection plate including: the flexible printed circuit board comprises a hard board and a soft board, wherein the soft board is connected with the hard board; one surface of the hard board is attached with an electronic component; and the packaging layer covers one side surface of the electronic component loaded on the hard board and is matched with the hard board to package the electronic component.
The rigid-flex printed circuit board comprises a rigid-flex printed circuit board body and a flexible printed circuit board body, wherein the rigid-flex printed circuit board body comprises a rigid-flex printed circuit board body and a flexible printed circuit board body, the rigid-flex printed circuit board body comprises a rigid-flex printed circuit board, the rigid-flex printed circuit board body and the flexible.
Wherein, electronic components includes: one or any combination of a resistor, a capacitor, an inductor, an integrated chip and an MOS tube.
The surface of the hard board, which is far away from the electronic component, is provided with a first electrode area and a second electrode area which are used for connecting the positive electrode and the negative electrode of the battery.
And a connector is arranged at one end of the soft board far away from the hard board and used for connecting equipment to be powered.
The hard board is made of hard materials, the soft board is made of soft materials, and the hard board and the soft board are both provided with circuit layers.
For solving the technical problem, the utility model discloses a another technical scheme be: there is provided a mobile terminal including the battery protection board as set forth in any one of the above.
The utility model has the advantages that: be different from prior art's condition, the utility model provides a battery protection shield, include: interconnect's soft board and hardboard, and the electronic components is equipped with in the subsides of hardboard surface, and the hardboard loading has electronic components's a side surface has the encapsulated layer, and the encapsulated layer cooperation hardboard encapsulates electronic components to this improves radiating effect, improves waterproof nature through the encapsulated layer.
Drawings
Fig. 1 is a schematic structural view of a battery protection plate in the prior art;
fig. 2 is a schematic structural diagram of an embodiment of the battery protection plate of the present invention;
fig. 3 is a schematic structural diagram of the mobile terminal of the present invention.
Detailed Description
The battery protection plate structure proposed in the current market is as shown in fig. 1, a hard plate is firstly made, components are pasted on the surface of the hard plate, and then a soft plate structure is welded.
In the battery protection board structure shown in fig. 1, after a hard board 11 is manufactured, an electronic component is mounted on one surface of the hard board, and then a soft board 12 is welded to one end of the hard board 11. In general, soldering is performed using a solder during soldering, but the reliability of the soldering point is poor and the temperature rises. And current panel backplate electronic components exposes, and it can cause waterproof nature and poor problem of thermal diffusivity.
Therefore, the battery protection plate in the prior art has problems and needs to be improved. Based on the problem, the utility model provides a novel battery protection plate structure, it can solve the soldering point reliability difference of the structure shown in figure 1, the problem of the poor problem of temperature rise and waterproof nature, thermal diffusivity.
Specifically, the utility model discloses a battery protection shield includes rigid-flex printed circuit board, interconnect's hardboard and soft board promptly, and wherein, the hardboard facing is equipped with electronic components, and the hardboard loading has one side of electronic components to be provided with the encapsulation layer to encapsulate electronic components, with this radiating effect and waterproof nature that improves battery protection shield. The rigid-flex combined plate is formed by the soft plate and the hard plate, so that tin solder can be prevented from being used for welding, the reliability of the battery protection plate is improved, and the performance of the battery protection plate is improved.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person without creative work all belong to the protection scope of the present invention.
The following explains and explains a specific embodiment of the present invention with reference to the drawings.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of the battery protection plate of the present invention. Comprises a hard board 11 and a soft board 12, wherein the hard board 11 and the soft board 12 are connected with each other.
The hard board 11 is made of a hard material, and is specifically made of a core board copper-clad plate, wherein the core board is made of a paper substrate, a glass fiber cloth substrate, a synthetic fiber cloth substrate, a non-woven fabric substrate, a composite substrate and other materials which are soaked with resin to prepare bonding sheets, the bonding sheets are combined by a plurality of bonding sheets, a copper foil is coated on one side or two sides of the prepared substrate board, and then the core board copper-clad plate is prepared by hot-pressing and curing. And pressing the manufactured core board copper-clad plate through a prepreg to form a stacked structure of the multilayer core board copper-clad plate. The prepreg is an interlayer bonding layer during lamination, specifically, the prepreg mainly comprises resin and a reinforcing material, when a multilayer circuit board is manufactured, glass fiber cloth is usually used as the reinforcing material, the glass fiber cloth is soaked in resin glue solution and is subjected to heat treatment and pre-baking to form a sheet, the sheet is softened under heating and pressurization and is solidified after cooling, and the sheet has viscosity, and two adjacent layers can be bonded in a high-temperature pressing process.
The flexible board 12 is made of a flexible material and is made of a polyimide copper clad material. In particular, printed circuit boards made with flexible dielectric substrates (mainly polyimide or polyester films) have many advantages not found in rigid printed circuit boards. For example, it can be freely bent, rolled, folded. The Flexible Printed Circuit (FPC) is utilized, namely the flexible board, so that the size of the electronic product can be greatly reduced, and the requirements of the electronic product on the development of high density, miniaturization and high reliability are met.
In this embodiment, the rigid-flex board is composed of the hard board 11 and the soft board 12. Specifically, the soft board 12 is partially embedded in the hard board 11 at the connecting position of the hard board 11 and the soft board 12. This prevents the soft board 12 and the hard board 11 from being connected by welding, thereby improving reliability and the like.
Specifically, an electronic component 13 is attached to one surface of the hard board 11, and the electronic component 13 specifically includes: one or any combination of a resistor, a capacitor, an inductor, an integrated chip and an MOS tube. The integrated chip is used for receiving signals and feeding the signals back to electronic components 13 such as MOS tubes and the like so as to make the electronic components react correspondingly and further protect the battery. Specifically, if the integrated chip detects a voltage overshoot, the voltage overshoot is reflected to the other electronic components 13, and the MOS transistor is turned off, so that power supply is stopped, and the battery is protected.
Wherein, a packaging layer 14 is further arranged on the surface of one side of the hard board 11 loaded with the electronic component 13, and the packaging layer 14 is matched with the hard board 11 to package the electronic component 13. Therefore, when the electronic component 13 works, the generated heat can be dissipated through the packaging layer 14, and the heat dissipation effect of the packaging layer 14 is better than that of air. In addition, the encapsulation layer 14 has a good waterproof effect, which can further protect the battery. Specifically, the encapsulation layer 14 may be made of a plastic molding material, such as epoxy resin.
Furthermore, a first electrode region 15 and a second electrode region 16 are provided on a surface of the hard sheet 11 on a side away from the electronic component 13. In one embodiment, the first electrode region 15 is a positive electrode, and the second electrode region 16 is a negative electrode, which is used to connect with the positive and negative electrodes of the battery.
The first electrode region 15 and the second electrode region 16 are flush with the surface of the hard plate 11 on the side away from the electronic component 13.
The end of the soft board 12, which is far away from the hard board 11, is further provided with a connector 17, and the connector 17 is used for connecting to-be-powered equipment, such as a mobile phone, a tablet computer, and the like, so that a battery is loaded in the to-be-powered equipment to supply power to the to-be-powered equipment.
In the battery protection board provided by the embodiment, the hard board 11 and the soft board 12 are integrally formed, which avoids welding the hard board 11 and the soft board 12, thereby improving the reliability of the battery protection board. In addition, the battery protection board of this embodiment is provided with the encapsulating layer 14 on the surface of the side where the hard board 11 is attached to the electronic component 13, and the encapsulating layer 14 can improve heat dissipation capability and accelerate the dissipation of heat generated by the electronic component 13, and can play a role in waterproofing on the other hand, thereby protecting the battery.
Please refer to fig. 3, which is a schematic structural diagram of the mobile terminal of the present invention. The mobile terminal 61 includes a battery protection board 62, wherein the battery protection board 62 includes the battery protection board 62 shown in fig. 2.
The mobile terminal 61 refers to a computer device that can be used in mobile, and broadly includes a mobile phone, a notebook, a tablet computer, a POS machine, and even a vehicle-mounted computer.
The utility model provides a battery protection shield and preparation method thereof through constituteing hardboard and soft board rigid-flex printed circuit board, avoids welding hardboard and soft board, and then improves battery protection shield's reliability. In addition, an electronic component is pasted on one surface of the hard board, and the electronic component is packaged by the packaging layer, so that the packaging layer can improve the heat dissipation capacity of the battery protection board relative to air, and further the heat generated by the electronic component is rapidly dissipated.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (7)

1.一种电池保护板，其特征在于，包括：1. A battery protection board, characterized in that, comprising: 硬板及软板，其中，所述软板及所述硬板连接；A hard board and a soft board, wherein the soft board and the hard board are connected; 所述硬板的一表面贴装有电子元器件；A surface of the hard board is mounted with electronic components; 封装层，覆盖于所述硬板装载有所述电子元器件的一侧表面，并配合所述硬板将所述电子元器件封装。The encapsulation layer covers the side surface of the hard board on which the electronic components are loaded, and cooperates with the hard board to encapsulate the electronic components. 2.根据权利要求1所述的电池保护板，其特征在于，所述硬板及所述软板组成刚挠结合板，且所述软板部分嵌入在所述硬板中。2 . The battery protection board according to claim 1 , wherein the hard board and the soft board form a rigid-flex board, and the soft board is partially embedded in the hard board. 3 . 3.根据权利要求1所述的电池保护板，其特征在于，所述电子元器件包括：电阻、电容、电感、集成芯片、MOS管中一种或任意组合。3 . The battery protection board according to claim 1 , wherein the electronic components include one or any combination of resistors, capacitors, inductors, integrated chips, and MOS tubes. 4 . 4.根据权利要求1所述的电池保护板，其特征在于，所述硬板远离所述电子元器件的表面具有第一电极区域及第二电极区域，用于连接电池的正极和负极。4 . The battery protection board according to claim 1 , wherein a surface of the hard board away from the electronic components has a first electrode area and a second electrode area for connecting the positive electrode and the negative electrode of the battery. 5 . 5.根据权利要求1所述的电池保护板，其特征在于，所述软板远离所述硬板的一端设有连接器，用于连接待供电设备。5 . The battery protection board according to claim 1 , wherein a connector is provided at one end of the flexible board away from the hard board, which is used to connect the device to be powered. 6 . 6.根据权利要求1所述的电池保护板，其特征在于，所述硬板的材料为硬性材料，所述软板的材料为软性材料，所述硬板及所述软板上均具有线路层。6 . The battery protection board according to claim 1 , wherein the material of the hard board is a hard material, the material of the soft board is a soft material, and both the hard board and the soft board have circuit layer. 7.一种移动终端，其特征在于，包括权利要求1～权利要求6所述的电池保护板。7 . A mobile terminal, comprising the battery protection board according to claim 1 to claim 6 . 8 .
CN202021357539.XU 2019-10-28 2020-07-10 Battery protection board and mobile terminal Active CN212752722U (en)

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CN2019110331554 2019-10-28

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112738974A (en) * 2019-10-28 2021-04-30 天芯互联科技有限公司 Battery protection board, method of making the same, and mobile terminal

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