CN104900819B - Secondary electrochemical battery sealing body with encapsulated type chip heat dissipation structure and battery - Google Patents
Secondary electrochemical battery sealing body with encapsulated type chip heat dissipation structure and battery Download PDFInfo
- Publication number
- CN104900819B CN104900819B CN201510321485.9A CN201510321485A CN104900819B CN 104900819 B CN104900819 B CN 104900819B CN 201510321485 A CN201510321485 A CN 201510321485A CN 104900819 B CN104900819 B CN 104900819B
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- China
- Prior art keywords
- negative pole
- circuit board
- pole cap
- battery
- board module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 title abstract description 7
- 230000017525 heat dissipation Effects 0.000 title abstract 2
- 239000011149 active material Substances 0.000 claims description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 10
- 238000005538 encapsulation Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 3
- JPOPEORRMSDUIP-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(2,3,5,6-tetrachlorophenyl)benzene Chemical compound ClC1=CC(Cl)=C(Cl)C(C=2C(=C(Cl)C=C(Cl)C=2Cl)Cl)=C1Cl JPOPEORRMSDUIP-UHFFFAOYSA-N 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- LJQOBQLZTUSEJA-UHFFFAOYSA-N 1,2,3,5-tetrachloro-4-(2,3,5,6-tetrachlorophenyl)benzene Chemical compound ClC1=C(Cl)C(Cl)=CC(Cl)=C1C1=C(Cl)C(Cl)=CC(Cl)=C1Cl LJQOBQLZTUSEJA-UHFFFAOYSA-N 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M50/147—Lids or covers
-
- 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
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
-
- 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
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
-
- 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
- H01M50/183—Sealing members
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a secondary electrochemical battery sealing body with encapsulated type chip heat dissipation structure. The sealing body is used for sealing the opening part of the battery shell of a secondary electrochemical battery, and comprises a cathode cap, a circuit board module and an insulating washer, wherein a sunk wire turn structure is formed at one end, near the cathode cap, of the battery shell; the circuit board module is positioned between the wire turn and the cathode cap; a plurality of electronic components and heat conducting cabling are arranged on the circuit board module; the length of the diameter of the circuit board module is set between the sunk inner diameter formed by the wire turn and the inner diameter of the battery shell, so that the circuit board module is clamped on one side of the wire turn to seal the opening part of the battery shell; the circuit board module is connected with the cathode cap through a heat conducting material, and used for being respectively in heat contact with the cathode cap and the heat conducting cabling; the section of the insulating washer adopts a shape referring to the Specification; the insulating washer is arranged in the interspace among the battery shell, the circuit board module and the cathode cap, presses and fixes the circuit board module between the wire turn and the battery shell, and insulates the battery shell from the cathode cap.
Description
Technical field
The present invention relates to a kind of secondary cell is and in particular to a kind of making active materials for use in secondary electrochemical with encapsulation type chip cooling structure
Battery seal body and battery.
Background technology
In recent years, secondary cell (also referred to as rechargeable battery) has been widely used for various portable electric equipments and electronics
In equipment, such as toy, handheld device etc., this proposes higher and higher requirement to secondary cell energy storage energy.Lithium ion secondary
Battery is due to having the advantages that energy is high, with high power discharge, environmental protection, thus gradually can applying in above field.
The normal work of rechargeable battery is frequently necessary to the IC chip cooperation with other functions, has reached preferable work
Make effect.Generally rechargeable battery is packaged respectively with IC chip, then passes through the connection of circuit board and wire, knot again
It is combined use.So peripheral cell is many, and production process is many, high cost, and rechargeable battery is big with IC chip volume, property
Can be poor, it is unfavorable for miniaturization or miniaturization.
When carrying out lithium rechargeable battery encapsulation, the space shared by lithium rechargeable battery each several part is all more fixing,
Wherein, this electrostrictive polymer core inner then includes anode pole piece, isolating membrane and cathode pole piece, and deviates from isolating membrane in anode pole piece
The battery core closedtop that one end has specified altitude assignment is packaged, because battery core closedtop occupies the certain altitude of this polymer battery core,
Thus decreasing the useful space of this electrostrictive polymer core inner.And the space availability ratio of polymer battery core and lithium rechargeable battery
Energy density and capacity have compared with Important Relations, general, the space availability ratio of this polymer battery core is bigger, this lithium ion secondary electricity
The energy density in pond and capacity are also bigger, and therefore, existing lithium rechargeable battery generally existing due to polymer battery core
Low space utilization and the energy density of lithium rechargeable battery that leads to and the relatively low problem of capacity.
Content of the invention
The invention provides a kind of making active materials for use in secondary electrochemical cells seal body with encapsulation type chip cooling structure, described sealing
Body is used for closing the peristome of the battery container of described making active materials for use in secondary electrochemical cells, and wherein said seal body includes：Negative pole cap, circuit
Plate module and insulating washer, described battery container has the circle line structure of depression at it near one end of described negative pole cap；Described
Circuit board module is located between described circle line and described negative pole cap, which is provided with multiple electronic components and is used for as described electronics
Carry out the heat conduction wiring of conduction of heat, the diameter of described circuit board module is set in described circle line composition during element manipulation
Between the internal diameter of depression and the internal diameter of battery container, thus being stuck in described circle line side for closing the opening of described battery container
Portion, described circuit board module is connected by Heat Conduction Material with described negative pole cap, for respectively with described negative pole cap and with described
Heat conduction wiring is thermally contacted；The section of described insulating washer is inShape, is arranged in described battery container, circuit board module and bears
In the space of polar cap, extruding permanent circuit plate module between described circle line and battery container, and isolate described battery container and
Described negative pole cap.
Preferably, it is connected for scolding tin between described circuit board module and described negative pole cap.
Preferably, the both sides of described circuit board module have metal substrate and circuit covers copper face, and described circuit covers on copper face
It is provided with least one thermal hole, for being directed near negative pole cap heat away from the side of described negative pole cap from described circuit board
Side, wherein, described metal substrate connects the electronic component that can produce heat and described circuit covers copper face, near negative pole cap
The circuit of side is covered copper face and connects the position being contacted with negative pole cap to described circuit board module.
Preferably, the position that described circuit board module is contacted with described negative pole cap be shaped as " C " type ring-type.
Preferably, the opposite side with respect to described circle line for the described negative pole cap is provided with draw-in groove, the quantity of described draw-in groove is extremely
Less be two, for clamping and fixation described negative pole cap, be provided with heat radiation material layer in described draw-in groove.
Preferably, the edge of described negative pole cap is provided with dop corresponding with the position of described draw-in groove, for will be described
Negative pole cap is fixed on described circuit board module.
Preferably, described negative pole cap is made from a material that be thermally conductive.
Preferably, described battery container is the box hat of cylinder or rectangular structure.
Preferably, described insulating washer is a flexible and elastic ring insulating blanket.
Preferably, describedA part for the insulating washer of shape is used for extruding permanent circuit plate module in described circle line and electricity
Between the housing of pond, another part is used for isolating described battery container and described negative pole cap.
Preferably, described circle line is 0.2-1.2mm with respect to the cup depth of battery casing surface.
Preferably, described seal body is used for closing the peristome of the battery container of described making active materials for use in secondary electrochemical cells, described electricity
Pond also includes battery core and positive electrode cap, and wherein, described positive electrode cap and described battery container connect and compose the positive pole of described secondary cell；
Described battery core is positioned in described battery container, between described positive electrode cap and described circle line structure.
The seal body accessory structure design for electrochemical cell of the present invention is ingenious rationally, in described electrochemical cell electricity
Pole sealing part has electrode cap, and described electrode cap can cooperatively form shielding construction with circuit board, can stop its internal high frequency
Components and parts interference to external world, and the heat producing when circuit board can work is conducted to the external world, play protection circuit plate and
The effect of components and parts.In addition, correspond on described battery container being disposed with circle line structure between battery core and circuit board, for positioning
Battery core and the relative position of circuit board, and and electrode cap and battery container between insulating washer cooperation circuit board is fixed, and
Do not need any welding.
Brief description
With reference to the accompanying drawing enclosed, the more purpose of the present invention, function and advantage will be as follows by embodiment of the present invention
Description is illustrated, wherein：
Fig. 1 a diagrammatically illustrates the structural representation of the electrochemical cell of the present invention.
Fig. 1 b is the decomposition diagram of the electrochemical cell of the present invention.
Fig. 1 c is the profile along A-A direction for Fig. 1 a.
Fig. 1 d is the circuit diagram of the circuit board module of the present invention.
Fig. 2 a diagrammatically illustrates the envelope for electrochemical cell of the making active materials for use in secondary electrochemical cells first embodiment of the present invention
The dimensional decomposition structure diagram of mouth body accessory 200.
Fig. 2 b diagrammatically illustrates the envelope for electrochemical cell of the making active materials for use in secondary electrochemical cells first embodiment of the present invention
The enlarged partial sectional view of mouth body accessory 200.
Fig. 3 a is the structural representation of the making active materials for use in secondary electrochemical cells second embodiment according to the present invention.
Fig. 3 b is the fractionation structural representation of the making active materials for use in secondary electrochemical cells second embodiment according to the present invention.
Fig. 3 c is the profile along C-C direction for Fig. 3 b.
Fig. 4 is the three-dimensional exploded view of the seal body accessory 400 for electrochemical cell of third embodiment of the invention.
Fig. 5 is the structural representation of the second printed circuit board (PCB) in third embodiment of the invention.
Specific embodiment
By reference to one exemplary embodiment, the purpose of the present invention and function and the side for realizing these purposes and function
Method will be illustrated.However, the present invention is not limited to one exemplary embodiment disclosed below；Can by multi-form Lai
It is realized.The essence of description is only to aid in the detail of the various equivalent modifications Integrated Understanding present invention.
It should be appreciated that aforementioned description substantially and subsequently detailed description are exemplary illustration and explanation, should not
As the restriction to the claimed content of the present invention.
Hereinafter, embodiments of the invention will be described with reference to the drawings.In the accompanying drawings, identical reference represent identical
Or similar part, or same or similar step.
The present invention provides a kind of electrochemical secondary cell, and the structure that Fig. 1 a, 1b are respectively the electrochemical cell of the present invention is shown
It is intended to and decomposition diagram.As shown in Fig. 1 a, 1b, a kind of electrochemical cell 100, including：Battery container 101, it is placed in battery case
Battery core 102 in body 101, negative pole cap 103, the circuit board module 104 in space that is placed between battery core 102 and negative pole cap 103 with
And positive electrode cap 105.It is cased with battery container 101, battery container 101 is the box hat of cylinder or rectangular structure outside battery core 102.Root
According to one embodiment of the present of invention, positive electrode cap 105 is dextrorsely molded as one structure with described battery container 101.
Circuit board module 104 is at least one of which printed circuit board (PCB) (PCB), has the first side and the second side, the wherein first side
Point to negative pole cap 103 with respect to described electrochemical cell 100, battery core is pointed to respect to described electrochemical cell 100 in the second side
102.PCB is the circuit board (as shown in Figure 1 d) being printed with wiring pattern thereon, and has the housing inner diameter with described battery 100
There is the size being generally corresponding to.Multiple printed conductors and components and parts are arranged in the first side or second side of circuit board module 104.Electricity
Road plate module 104 near negative pole cap 103 side of described battery 100, between battery core 102 and negative pole cap 103.Circuit board module
It is provided with connector thus being fixed on negative pole cap 103 on circuit board module 104, for example, negative pole cap 103 can pass through on 104
It is weldingly fixed on circuit board module 104 it is also possible to be fixed by modes such as clampings.Circuit board module is used for lithium cell charging to be protected
Shield, instruction of charging, can be also used for discharge prevention, short-circuit protection, Cross prevention and the control output voltage of battery.Circuit board
It is provided with electrode connecting line 108a and 108b between module 104 and battery core 102, respectively the both positive and negative polarity of battery is drawn respectively, its
Middle 108a is positive lead, and 108b is negative lead.Fig. 1 c is the profile along A-A direction for Fig. 1 a.In circuit board module
Between 104 and the battery container 101 of outside, between negative pole cap 103 and battery container 101, it is provided with insulating washer 106.Felt pad
Circle 106 is a flexible and resilient annular insulating mat layer of tool, and it is shaped as " L " along described electrochemical cell 101A-A section
Shape.Insulating washer 106 can play the battery container 101 as first electrode for the isolation and the negative pole cap 103 as second electrode
Effect, and because the elastic reaction of insulating blanket 106 can extrude and fix circuit board module 104, sealed cell housing
Space between 101 and negative pole cap 103.Specifically, as illustrated in figure 1 c, a part for L shape is used for extruding permanent circuit plate module
104 between described circle line 107 and battery container 101, and another part is used for isolating described battery container 101 and described negative pole cap
103.
On the outer surface of battery container 101, the position between corresponding battery core 102 and printed circuit board (PCB) 106 has a circle inside
Ring-shaped depression, is circle line 107.Described battery core 102 is positioned in described battery container 101, positioned at positive electrode cap 105 and described circle
Between the structure of line 107.The setting of insulating washer 106 and circle line 107 makes circuit board module 104 be fixed on battery container 101
Ring-shaped depression and battery container 101 bottom between, therefore battery container 101 and the connection of negative pole cap 103 does not need any weldering
Connect.
Circle line 107 structure be provided for positioning circuit plate module 104, specifically, will be big for the diameter of circuit board module 104
Little be set between the internal diameter and the internal diameter of battery container 101 of the ring-shaped depression that circle line 107 is constituted, in assemble,
First battery core 102 is placed in battery container 101, then circuit board module 104 is assembled in battery container 101, circuit board
The size dimension of module 104 can be stuck in the structure of circle line 107 thus avoiding the contact with battery core 102, then passes through again
Battery container 101 is isolated by insulating blanket 106 with negative pole cap 103, completes the assembling of battery 100.Said structure makes
Circuit board module 104 by circle line 107 structure battery container 101 be internally formed one closing space be used for accommodating electricity
Core 102, such that it is able to increase the volume of battery core 102, therefore increases the capacity of secondary cell.Preferably, battery core 102 is airtight for one
Structure, is operated by being connected with corresponding battery plus-negative plate from internal its both positive and negative polarity of extraction of battery core 102.
Preferably, above-mentioned circle line 107 is 0.2-1.2mm with respect to battery container 101 depression in the surface depth.
Fig. 2 a diagrammatically illustrates the envelope for electrochemical cell of the making active materials for use in secondary electrochemical cells first embodiment of the present invention
The dimensional decomposition structure diagram of mouth body accessory 200.Fig. 2 b diagrammatically illustrate first embodiment of the invention for electrochemistry
The enlarged partial sectional view of the seal body accessory 200 of battery.As shown in Fig. 2 a, 2b, described seal body accessory 200 includes first
PCB 201, the 2nd PCB 202, negative pole cap 203 and the 2nd PCB 202, the outside of negative pole cap 203 and battery container 206 it
Between setting insulating washer 207..According to one embodiment of present invention, a PCB 201 and the 2nd PCB 202 is area phase
Two same printed circuit board., near battery core 204, described 2nd PCB 202 is away from battery core 204 for a described PCB 201.First
PCB 201 is stuck on battery container 206 by circle line 205.The interface arrangment that 2nd PCB 202 passes through to arrange thereon is negative with described
Polar cap 203 passes through contact and realizes electrical connection, and forms a shielding construction with it.First PCB 201 is near the side of battery core 204
It is disposed with multiple chips or circuit components with the 2nd PCB 202 away from the side of battery core 204, wherein, in the course of the work can
The components and parts producing radiation are arranged in the shielding construction that the 2nd PCB202 is formed with negative pole cap 203.In the 2nd PCB 202, bear
The outside of polar cap 203 and battery container 206 and between be provided with insulating washer 207.Insulating washer 207 is a flexible annular insulation
Bed course, can extrude and fix a PCB 201 and the 2nd PCB 202 at circle line 205, sealed cell housing 206 and negative pole cap
Space between 103.The position contacting with a PCB and the 2nd PCB in battery container 206 is contact-enhancing tin plating 210, with close
Gap between envelope circuit board and battery container.By the through hole 209 between a PCB and the 2nd PCB, battery core 204 is drawn
Negative lead 208b (208a is positive lead, and in figure is not shown) be connected with the wire on a PCB and the 2nd PCB.
The inner surface of through hole 209 is coated with conductive material, for example, copper facing, therefore the wiring of multiple circuit boards can be passed through through hole
209 link together, and are connected with the position of negative pole cap and circuit board contacts, thus being conducted to negative pole cap.
Due to the structure very little of the making active materials for use in secondary electrochemical cells according to the present invention, therefore it is placed in PCB's within battery container
Area also very little.Due to being integrated with substantial amounts of electronic component on PCB, integrated level is higher, therefore charges in making active materials for use in secondary electrochemical cells
When, electronic component can generate heat thus leading to the temperature of PCB to raise, and is unfavorable for the normal work of PCB.Above-mentioned envelope according to the present invention
Mouthful body accessory 200 can be by the special construction of setting effectively to realize PCB radiating.Specifically, can be with cloth on pcb board
It is provided with and connects up (not shown in Fig. 2) for the heat conduction carrying out conduction of heat when working for described electronic component, such as with printed wiring
Form setting.On the opposite side with respect to described circle line 205 for the described pcb board, that is, faced by the 2nd PCB 202 as shown in Figure 2
On the side of negative pole cap 203, it is provided with draw-in groove 208, for clamping and fixing described negative pole cap 203.In order to realize good dissipating
Heat, is equipped with heat radiation material layer, such as metal material layer in described draw-in groove 208, described heat radiation material layer one side is negative with described
Polar cap connect thus realize thermally contact, on the other hand with pcb board on lay for carrying out heat when working for described electronic component
The heat conduction wiring of conduction is thermally contacted, and so, the heat that electronic component operationally distributes by heat conduction wiring and can block
Groove 208 is delivered to negative pole cap 203, and is delivered to outside by negative pole cap 203 and is effectively spread.
Negative pole cap 203 is preferably made from a material that be thermally conductive, with the heat that outwards diffusing electrons element produces effectively.For example
It is made of metal.
It will be appreciated by persons skilled in the art that the seal body accessory 200 of two PCB of inclusion shown in Fig. 2 is only
Exemplary, the seal body accessory of the present invention applies also for a PCB or the situation of multi-layer PCB combination.
Fig. 3 is the another embodiment of the making active materials for use in secondary electrochemical cells radiator structure according to the present invention.As shown in Figure 3 a, away from
The side of negative pole cap, the chip on circuit board and components and parts by contact with the metal substrate 301 on circuit board and during by work
The heat producing is conducted to metal substrate 301, then passes to the circuit welding with metal substrate and covers copper face 302.Cover in circuit
One or more thermal holes 303 are arranged on copper face 302, thermal hole 303 is through-hole structure, covers copper face 302 with circuit and is integrated knot
Structure.The heat of therefore chip and components and parts generation is eventually delivered to the thermal hole 303 that circuit covers on copper face 302, by heat conduction
Hole 303 conducts heat to the opposite side of circuit board, that is, near the side of negative pole cap.Fig. 3 b is the secondary electrification according to the present invention
Learn the fractionation structural representation of battery second embodiment.The circuit that the edge that can be seen that negative pole cap 304 from Fig. 3 b is in contact with it
Plate 305 carries out scolding tin connection in both contacts site 306.Preferably, contact site be shaped as " C " type ring-type.Likewise,
Near negative pole cap side circuit board have with away from corresponding radiator structure on the circuit board of negative pole cap side, i.e. metal substrate
301 ', circuit covers copper face 302 '.The metal substrate 301 and 301 ' of thermal hole 303 connection circuit plate both sides, circuit covers copper face 302
With 302 '.Meanwhile, the circuit on the circuit board of negative pole cap side covers the contact site of copper face 302 ' and negative pole cap and circuit board
Position 306 connection.So, away from negative pole cap side chip operation when the heat that produces can transmit in the following manner：Metal liner
Bottom 301 circuit covers the contact site that copper face 302 thermal hole 303 circuit covers copper face 302 ' negative pole cap and circuit board
306 negative pole caps.The heat that chip near negative pole cap side produces directly can cover copper by metal substrate 301 ' circuit
The contact site 306 negative pole cap of face 302 ' negative pole cap and circuit board is delivered to the external world.Preferably, the material of thermal hole 303
For copper plated material, as shown in Figure 3 c, the chip of heating and the heat of electronic devices and components can be transmitted to circuit by thermal hole 303
The opposite side of plate, thus pass to negative pole cap.
Fig. 4 is the three-dimensional exploded view of the seal body accessory 400 for electrochemical cell of third embodiment of the invention.Described
Seal body accessory 400 includes a PCB 401, the 2nd PCB 402 and negative pole cap 403.Wherein the first PCB 401 and the 2nd PCB
It is disposed with multiple circuit components on 402.The edge of a PCB 401 and the 2nd PCB 402 is provided with multiple apertures 404,
For a PCB 401 and the 2nd PCB 402 is fixed together.Preferably, the 2nd PCB 402 connects the one of negative pole cap 403
Corresponding negative pole cap 403 marginal position in side has at least two draw-in groove 405 (not shown), and the edge of negative pole cap 403 then has
The dop 406 corresponding with described draw-in groove 405, for negative pole cap 403 is fixed on the 2nd PCB 402, and enables to be electrically connected
Connect and thermally contact.2nd PCB 402 is disposed with quoit 501 (as shown in Figure 5), negative pole cap with the contact site of negative pole cap 403
403 can play the effect of electro-magnetic shielding cover with quoit 501 cooperation.The material of described negative pole cap 403 is metal, can be by electricity
The heat that components and parts on the plate of road produce when working derives outside batteries by draw-in groove 405 contact with dop 406, plays radiating
Effect.
The seal body accessory structure design for electrochemical cell of the present invention is ingenious rationally, in described electrochemical cell electricity
Pole sealing part has electrode cap, and described electrode cap can cooperatively form shielding construction with circuit board, can stop its internal high frequency
Components and parts interference to external world, and the heat producing when circuit board can work is conducted to the external world, play protection circuit plate and
The effect of components and parts.In addition, correspond on described battery container being disposed with circle line structure between battery core and circuit board, for positioning
Battery core and the relative position of circuit board, and and electrode cap and battery container between insulating washer cooperation circuit board is fixed, and
Do not need any welding.
Explanation in conjunction with the present invention disclosing here and practice, the other embodiment of the present invention is for those skilled in the art
All will be readily apparent and understand.Illustrate and embodiment be to be considered only as exemplary, the true scope of the present invention and purport equal
It is defined in the claims.
Claims (12)
1. a kind of making active materials for use in secondary electrochemical cells seal body with encapsulation type chip cooling structure, described seal body is used for closing described
The peristome of the battery container of making active materials for use in secondary electrochemical cells, wherein said seal body includes：Negative pole cap, circuit board module and felt pad
Circle,
Described battery container has the circle line structure of depression at it near one end of described negative pole cap；
Described circuit board module be located between described circle line and described negative pole cap, which is provided with multiple electronic components and be used for be
Carry out the heat conduction wiring of conduction of heat, the diameter of described circuit board module is set in described circle during described electronic component work
Between the internal diameter of depression of line composition and the internal diameter of battery container, thus be stuck in described circle line side to be used for closing described battery case
The peristome of body, described circuit board module is connected by Heat Conduction Material with described negative pole cap, for respectively with described negative pole cap with
And thermally contacted with described heat conduction wiring；
The section of described insulating washer is inShape, is arranged in the space of described battery container, circuit board module and negative pole cap, squeezes
Pressure permanent circuit plate module is between described circle line and battery container, and isolates described battery container and described negative pole cap；
Described circuit board module is at least one of which printed circuit board (PCB).
2. making active materials for use in secondary electrochemical cells seal body according to claim 1, wherein said circuit board module and described negative pole cap
Between for scolding tin connect.
3. making active materials for use in secondary electrochemical cells seal body according to claim 2, the both sides of wherein said circuit board module have gold
Belong to substrate and circuit and cover copper face, described circuit covers and is provided with least one thermal hole on copper face, for by heat from described circuit
Plate is directed at side near negative pole cap away from the side of described negative pole cap, wherein,
Described metal substrate connects the electronic component that can produce heat and described circuit covers copper face,
Circuit near negative pole cap side is covered copper face and connects the position being contacted with negative pole cap to described circuit board module.
4. making active materials for use in secondary electrochemical cells seal body according to claim 3, wherein said circuit board module and described negative pole cap
Contact position be shaped as " C " type ring-type.
5. making active materials for use in secondary electrochemical cells seal body according to claim 1, wherein said negative pole cap is with respect to described circle line
Draw-in groove is provided with opposite side, the quantity at least two of described draw-in groove, for clamping and fixing described negative pole cap, described draw-in groove
Inside it is provided with heat radiation material layer.
6. making active materials for use in secondary electrochemical cells seal body according to claim 5, the edge of wherein said negative pole cap be provided with
The corresponding dop in position of described draw-in groove, for being fixed on described circuit board module by described negative pole cap.
7. making active materials for use in secondary electrochemical cells seal body according to claim 1, wherein said negative pole cap is made from a material that be thermally conductive.
8. making active materials for use in secondary electrochemical cells seal body according to claim 1, wherein said battery container is cylinder or rectangular
The box hat of body structure.
9. making active materials for use in secondary electrochemical cells seal body according to claim 1, wherein said insulating washer is flexible and elastic for one
Annular insulating mat layer.
10. making active materials for use in secondary electrochemical cells seal body according to claim 1, wherein said section is inThe insulating washer of shape
A part is used for extruding permanent circuit plate module between described circle line and battery container, and another part is used for isolating described battery
Housing and described negative pole cap.
11. making active materials for use in secondary electrochemical cells seal bodies according to claim 1, wherein said circle line is with respect to battery casing surface
Cup depth be 0.2-1.2mm.
A kind of 12. making active materials for use in secondary electrochemical cells comprising battery seal body as claimed in claim 1, described seal body is used for closing
The peristome of the battery container of described making active materials for use in secondary electrochemical cells, described battery also includes battery core and positive electrode cap, wherein,
Described positive electrode cap and described battery container connect and compose the positive pole of described secondary cell；
Described battery core is positioned in described battery container, between described positive electrode cap and described circle line structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510321485.9A CN104900819B (en) | 2015-06-12 | 2015-06-12 | Secondary electrochemical battery sealing body with encapsulated type chip heat dissipation structure and battery |
| PCT/CN2015/096612 WO2016197567A1 (en) | 2015-06-12 | 2015-12-08 | Secondary electrochemical battery sealer body having packaged chip heat dissipation structure and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510321485.9A CN104900819B (en) | 2015-06-12 | 2015-06-12 | Secondary electrochemical battery sealing body with encapsulated type chip heat dissipation structure and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104900819A CN104900819A (en) | 2015-09-09 |
| CN104900819B true CN104900819B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510321485.9A Active CN104900819B (en) | 2015-06-12 | 2015-06-12 | Secondary electrochemical battery sealing body with encapsulated type chip heat dissipation structure and battery |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197567A1 (en) * | 2015-06-12 | 2016-12-15 | 福建南平南孚电池有限公司 | Secondary electrochemical battery sealer body having packaged chip heat dissipation structure and battery |
| CN105896479B (en) * | 2016-05-26 | 2018-10-30 | 深圳先进储能材料国家工程研究中心有限公司 | A kind of built-in constant pressure protection structure member and use its rechargeable battery |
| CN107681068B (en) * | 2017-11-06 | 2024-06-11 | 惠州亿纬锂能股份有限公司 | Rechargeable battery with integrated battery cell |
| CN109994660B (en) * | 2019-03-15 | 2023-12-05 | 福建南平南孚电池有限公司 | Rechargeable battery with improved circuit unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2865011Y (en) * | 2005-11-23 | 2007-01-31 | 比亚迪股份有限公司 | Packaging battery |
| CN101252179B (en) * | 2008-03-31 | 2010-06-16 | 华为终端有限公司 | Electrode lead encapsulation method and structure as well as battery encapsulation method and structure |
| CN201294237Y (en) * | 2008-07-31 | 2009-08-19 | 比亚迪股份有限公司 | Electrode connection belt and lithium ion battery with the same |
| KR101441524B1 (en) * | 2012-02-07 | 2014-09-17 | 주식회사 엘지화학 | Secondary Battery of Novel Structure |
| CN204760438U (en) * | 2015-06-12 | 2015-11-11 | 福建南平南孚电池有限公司 | Secondary electrochemical cell seals body and battery with encapsulation cake core heat radiation structure |
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