CN204792944U - Secondary cell negative pole seals body - Google Patents
Secondary cell negative pole seals body Download PDFInfo
- Publication number
- CN204792944U CN204792944U CN201520406690.0U CN201520406690U CN204792944U CN 204792944 U CN204792944 U CN 204792944U CN 201520406690 U CN201520406690 U CN 201520406690U CN 204792944 U CN204792944 U CN 204792944U
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- China
- Prior art keywords
- negative pole
- circuit board
- board module
- battery container
- pole cap
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a secondary cell negative pole seals body, include: negative pole cap, circuit matrix piece and sealing washer, battery case has sunken dense line structure in the one end that it is close to the negative pole cap, and circuit matrix piece is located between dense line and the negative pole cap, and the card is in circle line one side, circuit matrix piece is the plastics flexible circuit board, the sealing washer is a flexible and elasticity annular insulation bed course, arranges in the space of battery case, circuit matrix piece and negative pole cap, the sealing washer is convex with the position of the inside contact of battery case for cooperation battery case's circular structure, the side edge and the gap department between the battery case of circuit matrix piece are provided with first cladding material, and circuit matrix piece is provided with second cladding material with the gap department of circle line, and second cladding material extends a segment length along the surface that circuit matrix piece is close to circle line one side to realize the electrical contact with the positive pole wiring on the circuit matrix piece, thus anodal wiring on the circuit matrix piece and battery case's electrical contact.
Description
Technical field
The utility model relates to a kind of secondary cell, is specifically related to a kind of secondary battery negative pole seal body.
Background technology
In recent years, secondary cell (also referred to as rechargeable battery) has been widely used in various portable electric equipment and electronic equipment, such as toy, handheld device etc., and this proposes more and more higher requirement to secondary cell energy storage energy.Lithium rechargeable battery due to have energy high, can the advantage such as high power discharge, environmental protection, be thus applied in above field gradually.
The normal work of rechargeable battery often needs to coordinate with the integrated circuit (IC) chip of other functions, has reached desirable working effect.Usual rechargeable battery and integrated circuit (IC) chip encapsulate respectively, and then by the connection of circuit board and wire, combine use.Such peripheral cell is many, and production process is many, cost is high, and greatly, poor-performing, is unfavorable for miniaturization or microminiaturization for rechargeable battery and integrated circuit (IC) chip volume.
When carrying out lithium rechargeable battery encapsulation, space shared by lithium rechargeable battery each several part is all comparatively fixing, wherein, this electrostrictive polymer core inner then comprises anode pole piece, barrier film and cathode pole piece, and the battery core closedtop in one end that anode pole piece deviates from barrier film with specified altitude assignment encapsulates, because battery core closedtop occupies the certain altitude of this polymer battery core, thus decrease the useful space of this electrostrictive polymer core inner.And the space availability ratio of polymer battery core and the energy density of lithium rechargeable battery and capacity have comparatively Important Relations, general, the space availability ratio of this polymer battery core is larger, the energy density of this lithium rechargeable battery and capacity are also larger, therefore, existing lithium rechargeable battery ubiquity the low and energy density of the lithium rechargeable battery caused of space availability ratio due to polymer battery core and the lower problem of capacity.
Utility model content
The utility model provides a kind of secondary battery negative pole seal body, described seal body is used for the peristome of the battery container closing described making active materials for use in secondary electrochemical cells, wherein said seal body comprises: negative pole cap, circuit board module and sealing ring, described battery container has the circle line structure of depression in its one end near described negative pole cap, described battery core is positioned in described battery container, between described positive electrode cap and described circle line structure; Described circuit board module is between described circle line and described negative pole cap, and the diameter of described circuit board module is set to, between the internal diameter and the internal diameter of battery container of the depression of described circle line formation, be stuck in described circle line side thus isolate with described battery core; Described circuit board module is plastic flexible circuit board, has certain elasticity, produces elastic deformation be used for being stuck in described battery container inside by the extruding of described sealing ring; Described sealing ring is a flexibility and elastic ring insulating blanket, is arranged in the space of described battery container, circuit board module and negative pole cap, and for isolating described battery container and described negative pole cap, negative pole cap, battery container and circuit board module are stated in sealing; The position of described sealing ring and battery container interior contact is circular arc, for the arc structure of matching battery housing; Gap place between the lateral edge of described circuit board module and battery container is provided with the first coating, the gap place of described circuit board module and circle line is provided with the second coating, described second coating extends a segment length along described circuit board module near the surface of described circle line side, electrical contact is realized to connect up with the positive pole on described circuit board module, thus the electrical contact of the positive pole wiring realized on described circuit board module and battery container.
Preferably, the connector between described circuit board module and described negative pole cap is solder.
Preferably, the connector between described circuit board module with described negative pole cap is that buckle is connected.
Preferably, the edge of described negative pole cap is provided with at least two dops, for described negative pole cap is fixed on described circuit board module.
Preferably, described circuit board module is provided with at least two draw-in grooves, for installing described negative pole cap relative to the marginal position side of described negative pole cap corresponding to described negative pole cap.
Preferably, the shape of described sealing ring be "
" type,
a part for extruding permanent circuit plate module between described circle line and described battery container, another part is for isolating described battery container and described negative pole cap, described sealing ring is for isolating the part of described battery container and described negative pole cap, to stretch out and higher than described battery container certain distance, and flush with described negative pole cap, produce short circuit to prevent described battery when charging.
Preferably, the material of described coating is conductive metal material.
Preferably, described coating is zinc-plated.
Preferably, the shape of described negative pole cap and circuit board module connecting portion is " C " type circulus.
Preferably, described battery also comprises 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 circuit board module.
Seal body accessory structure for electrochemical cell design of the present utility model is rationally ingenious; at described electrochemical cell electrode sealing part, there is negative pole cap; described negative pole cap can coordinate with circuit board and forms shielding construction; the heat conduction produced during work is given extraneous, plays the effect of protective circuit plate and components and parts.In addition, described battery container corresponds to and between battery core and circuit board, is furnished with circle line structure, for locating the relative position of battery core and circuit board, and by sealing ring and zinc-plated structure by circuit board module block edge and the gap sealing between battery container and circle line.
Accompanying drawing explanation
With reference to the accompanying drawing of enclosing, the following description by the utility model execution mode is illustrated by the more object of the utility model, function and advantage, wherein:
Fig. 1 a diagrammatically illustrates the structural representation of electrochemical cell of the present utility model.
Fig. 1 b is the decomposition diagram of electrochemical cell of the present utility model.
Fig. 1 c is the profile of Fig. 1 a along A-A direction.
Fig. 2 a diagrammatically illustrates the enlarged partial sectional view of the seal body accessory for electrochemical cell of the present utility model.
Fig. 2 b diagrammatically illustrates the enlarged partial sectional view of another embodiment of the seal body accessory for electrochemical cell of the present utility model.
Fig. 3 is the sectional exploded view of the seal body accessory for electrochemical cell of the present utility model.
Embodiment
By reference to one exemplary embodiment, the purpose of this utility model and function and the method for realizing these objects and function will be illustrated.But the utility model is not limited to following disclosed one exemplary embodiment; Can be realized it by multi-form.The essence of specification is only help various equivalent modifications Integrated Understanding detail of the present utility model.
Should be appreciated that description and the follow-up detailed description of aforementioned cardinal principle are exemplary illustration and explanation, should not be used as the restriction to the claimed content of the utility model.
Hereinafter, embodiment of the present utility model will be described with reference to the drawings.In the accompanying drawings, identical Reference numeral represents same or similar parts, or same or similar step.
The utility model provides a kind of electrochemical secondary cell, and Fig. 1 a, 1b are respectively the structural representation Sum decomposition perspective view of electrochemical cell 100 of the present utility model.As shown in Fig. 1 a, 1b, a kind of electrochemical cell 100, comprising: battery container 101, the battery core 102 be placed in battery container 101, negative pole cap 103, the circuit board module 104 being placed in the space between battery core 102 and negative pole cap 103 and positive electrode cap 105.Battery core 102 overcoat has battery container 101, and between positive electrode cap 105 and circuit board module 104.Battery container 101 is the box hat of cylinder or rectangular structure, for output cathode, and permanent circuit plate module 104.According to an embodiment of the present utility model, positive electrode cap 105 is molded as one structure with described battery container 101 dextrorsely, forms the positive pole of secondary cell 100.
Circuit board module 104 is at least one layer printed circuit board (PCB), has the first side and the second side, and wherein the first side is pointed to negative pole cap 103, second side relative to described electrochemical cell 100 and pointed to battery core 102 relative to described electrochemical cell 100.PCB is the circuit board it being printed with wiring pattern, and has and have roughly corresponding size with the housing inner diameter of described battery 100.Multiple printed conductor and components and parts are arranged in the first side or second side of circuit board module 104.Circuit board module 104 near negative pole cap 103 side of described battery 100, between battery core 102 and negative pole cap 103.
Circuit board module 104 is provided with connector thus is fixed on circuit board module 104 by negative pole cap 103, such as, negative pole cap 103 can be welded on circuit board module 104 by solder, also can be fixed by modes such as buckle connections.Preferably, when adopting snap to connect, the edge of negative pole cap 103 is provided with at least two dops, for negative pole cap 103 is fixed on circuit board module 104, and circuit board module 104 is provided with at least two draw-in grooves, for installing negative pole cap 103 relative to the marginal position side of negative pole cap 103 corresponding to described negative pole cap 103.The circuit cathode output end of circuit board module 104 is arranged on described negative pole cap 103 and the junction of circuit board, and negative pole is exported and circuit ground conllinear.
Circuit board module is used for lithium cell charging protection, charging instruction, can also be used for the discharge prevention of battery, short-circuit protection, Cross prevention and control output voltage.Be provided with electrode connecting line 108a and 108b between circuit board module 104 and battery core 102, drawn respectively by the both positive and negative polarity of battery respectively, wherein 108a is positive lead, and 108b is negative lead.
Fig. 1 c is the profile of Fig. 1 a along A-A direction.Between circuit board module 104 and the battery container 101 of outside, between negative pole cap 103 and battery container 101, be provided with sealing ring 106.Sealing ring 106 is a flexibility and has flexible annular insulating mat layer, it can play the effect of the battery container 101 of isolation as the first electrode and the negative pole cap 103 as the second electrode, and because the elastic reaction of sealing ring 106 can extrude and fix circuit board module 104, the space between sealed cell housing 101 and negative pole cap 103.Particularly, as illustrated in figure 1 c, the shape of sealing ring 106 be "
" type,
a part for extruding permanent circuit plate module 104 between described circle line 107 and battery container 101, another part is for isolating described battery container 101 and described negative pole cap 103.Sealing ring 106, for isolating the part of battery container 101 and negative pole cap 103, to stretch out and higher than battery container 101 certain distance, and flushes with negative pole cap 103, produces short circuit to prevent described battery when charging.
Preferably, sealing ring 106 is circular arc with the position of battery container 101 interior contact, for the arc structure of matching battery housing 101.Preferably, circuit board module 104 is plastic flexible circuit board, has certain elasticity, produces elastic deformation be used for being stuck in battery container 101 inside by the extruding of sealing ring 106.
The ring-shaped depression that position on the outer surface of battery container 101 between corresponding battery core 102 and printed circuit board (PCB) 106 has a circle inside is circle line 107.Described battery core 102 is positioned in described battery container 101, between positive electrode cap 105 and the structure of described circle line 107.Sealing ring 106 and circle line 107 be arranged so that circuit board module 104 is fixed on bottom the ring-shaped depression of battery container 101 and battery container 101 between, therefore battery container 101 and the connection of negative pole cap 103 are without any need for welding.
The setting of circle line 107 structure is used for positioning circuit plate module 104, particularly, the diameter of circuit board module 104 is set between the internal diameter of the ring-shaped depression formed at circle line 107 and the internal diameter of battery container 101, when assembling battery, first battery core 102 is placed in battery container 101, then circuit board module 104 is assembled in battery container 101, the structure that the size dimension of circuit board module 104 can be stuck in circle line 107 avoids the contact with battery core 102, and then by sealing ring 106, battery container 101 and negative pole cap 103 are isolated, complete the assembling of battery 100.Said structure makes circuit board module 104 to define a closed space in battery container 101 inside for holding battery core 102 by the structure of circle line 107, thus can increase the volume of battery core 102, therefore increases the capacity of secondary cell.Preferably, battery core 102 is a closed structure, carries out work by being connected from its both positive and negative polarity of battery core 102 inside extraction with corresponding battery plus-negative plate.
Preferably, above-mentioned circle line 107 is 0.2-1.2mm relative to the battery container 101 depression in the surface degree of depth.
Fig. 2 a diagrammatically illustrates the enlarged partial sectional view of the seal body accessory 200 for electrochemical cell of the present utility model.As shown in Figure 2, described seal body accessory 200 comprises a PCB201, the 2nd PCB202, negative pole cap 203.According to an embodiment of the present utility model, a PCB201 and the 2nd PCB202 are two printed circuit board that area is identical.A described PCB201 is near battery core 204, and described 2nd PCB202 is away from battery core 204.One PCB201 is stuck on battery container 206 by circle line 205.Negative pole cap 203 described in 2nd PCB202 realizes electrical connection by contact, and with its composition shielding construction.One PCB201 is furnished with multiple chip or circuit components near the side of battery core 204 and the 2nd PCB202 away from the side of battery core 204, wherein, the components and parts that can produce radiation are in the course of the work arranged in the shielding construction that the 2nd PCB202 and negative pole cap 203 form.The outside of the 2nd PCB202, negative pole cap 203 and battery container 206 and between be provided with sealing ring 207.Sealing ring 207 is a flexibility and elastic ring insulating blanket, be arranged in the space of described battery container 206, the 2nd PCB202 and negative pole cap 203, a part for described sealing ring 207 is used under the extruding of battery container 206, fixing a PCB201 and the 2nd PCB202 in circle line 205 place, another part, for isolating battery container 206 and negative pole cap 203, seals negative pole cap 203, battery container 206 and the space between a PCB201 and the 2nd PCB202.Sealing ring 207 is circular arc with the position of battery container 206 interior contact, for the arc structure of matching battery housing 206.
Gap place between the lateral edge of the one PCB201 and the 2nd PCB202 and battery container 206 is provided with the first coating 210, the gap place of the one PCB201 and circle line 205 is provided with the second coating 211, second coating 211 extends a segment length along a PCB201 near the surface of circle line 205 side, length is between 0.5mm ~ 3mm, 213 electrical contact is realized to connect up with the positive pole on a PCB201, thus the electrical contact of the positive pole wiring 213 realized on a PCB201 and battery container 206, and a PCB201 and the 2nd PCB202 edge and the gap between battery container 206 and circle line 205 can be sealed.The situation of the circuit board module with one piece of PCB can also be applied to according to the seal body accessory 200 for electrochemical cell of the present utility model, as shown in Figure 2 b, gap place between the lateral edge of circuit board module 212 and battery container 206 is provided with the first coating 210, and circuit board module 212 is provided with the second coating 211 with the gap place of circle line 205.Second coating 211 extends a segment length along circuit board module 212 near the surface of circle line 205 side, length is between 0.5mm ~ 3mm, 213 electrical contact is realized to connect up with the positive pole on circuit board module 212, thus the electrical contact of positive pole wiring 213 in realizing circuit plate module 212 and battery container 206.Preferably, the material of coating is good conductive metal material, such as: zinc-plated.By the through hole 209 between a PCB and the 2nd PCB, the negative lead 208b (208a is positive lead, not shown) battery core 204 drawn is connected with the wire on the 2nd PCB with a PCB.The inner surface of through hole 209 is coated with electric conducting material, such as, be copper facing, therefore the wiring of multiple circuit board can be linked together by through hole 209, and be connected with the position of circuit board contacts with negative pole cap, thus conducted to negative pole cap.
Fig. 3 is the sectional exploded view of the seal body accessory 300 for electrochemical cell of the present utility model.As shown in Figure 3, described seal body accessory 300 comprises negative pole cap 301, sealing ring 302, circuit board module 303.Circuit board module 303 is provided with charging indicator light 305 with the corresponding position, edge of negative pole cap 301.Negative pole cap 301 is " C " type circulus with the shape of circuit board module 303 connecting portion, namely the edge of negative pole cap has breach 304, breach 304 is the Tong Guangkou of charging indicator light 305, described breach 304 has certain height but is no more than the height of negative pole cap, in order to charging indicator light 305 is come out, the position of the charging indicator light 305 in its position corresponding circuits plate module 303.Sealing ring 302 is a flexibility and elastic ring insulating blanket, the Tong Guangkou (as shown in Figure 3) of charging indicator light 305 can be covered completely, the material of sealing ring 302 is transparent light conductive material, and the light that charging indicator light 305 can be made to send is through described sealing ring and make whole sealing ring printing opacity.
Seal body accessory structure for electrochemical cell design of the present utility model is rationally ingenious; at described electrochemical cell electrode sealing part, there is negative pole cap; described negative pole cap can coordinate with circuit board and forms shielding construction; the heat conduction produced during work is given extraneous, plays the effect of protective circuit plate and components and parts.In addition, described battery container corresponds to and between battery core and circuit board, is furnished with circle line structure, for locating the relative position of battery core and circuit board, and by sealing ring and zinc-plated structure by circuit board module block edge and the gap sealing between battery container and circle line.
In conjunction with the explanation of the present utility model disclosed here and practice, other embodiments of the present utility model are all easy to expect and understand for those skilled in the art.Illustrate and embodiment be only considered to exemplary, true scope of the present utility model and purport limited by claim.
Claims (10)
1. a secondary battery negative pole seal body, described seal body is used for the peristome of the battery container closing described making active materials for use in secondary electrochemical cells, and wherein said seal body comprises: negative pole cap, circuit board module and sealing ring,
Described battery container has the circle line structure of depression in its one end near described negative pole cap, and described battery core is positioned in described battery container, between described positive electrode cap and described circle line structure;
Described circuit board module is between described circle line and described negative pole cap, and the diameter of described circuit board module is set to, between the internal diameter and the internal diameter of battery container of the depression of described circle line formation, be stuck in described circle line side thus isolate with described battery core; Described circuit board module is plastic flexible circuit board, has certain elasticity, produces elastic deformation be used for being stuck in described battery container inside by the extruding of described sealing ring;
Described sealing ring is a flexibility and elastic ring insulating blanket, being arranged in the space of described battery container, circuit board module and negative pole cap, for isolating described battery container and described negative pole cap, sealing described negative pole cap, battery container and circuit board module;
The position of described sealing ring and battery container interior contact is circular arc, for the arc structure of matching battery housing;
Gap place between the lateral edge of described circuit board module and battery container is provided with the first coating, the gap place of described circuit board module and circle line is provided with the second coating, described second coating extends a segment length along described circuit board module near the surface of described circle line side, electrical contact is realized to connect up with the positive pole on described circuit board module, thus the electrical contact of the positive pole wiring realized on described circuit board module and battery container.
2. seal body according to claim 1, the connector between wherein said circuit board module and described negative pole cap is solder.
3. seal body according to claim 1, the connector between wherein said circuit board module with described negative pole cap is that buckle is connected.
4. seal body according to claim 3, the edge of wherein said negative pole cap is provided with at least two dops, for described negative pole cap is fixed on described circuit board module.
5. seal body according to claim 3, wherein said circuit board module is provided with at least two draw-in grooves, for installing described negative pole cap relative to the marginal position side of described negative pole cap corresponding to described negative pole cap.
6. seal body according to claim 1, the shape of wherein said sealing ring is
type,
a part for extruding permanent circuit plate module between described circle line and described battery container, another part is for isolating described battery container and described negative pole cap, described sealing ring is for isolating the part of described battery container and described negative pole cap, to stretch out and higher than described battery container certain distance, and flush with described negative pole cap, produce short circuit to prevent described battery when charging.
7. seal body according to claim 1, the material of wherein said coating is conductive metal material.
8. seal body according to claim 7, wherein said coating is zinc-plated.
9. seal body according to claim 1, the shape of wherein said negative pole cap and circuit board module connecting portion is " C " type circulus.
10. comprise a making active materials for use in secondary electrochemical cells for seal body as claimed in claim 1, described battery also comprises 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 circuit board module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520406690.0U CN204792944U (en) | 2015-06-12 | 2015-06-12 | Secondary cell negative pole seals body |
| PCT/CN2015/096608 WO2016197563A1 (en) | 2015-06-12 | 2015-12-08 | Negative electrode sealing body of secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520406690.0U CN204792944U (en) | 2015-06-12 | 2015-06-12 | Secondary cell negative pole seals body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792944U true CN204792944U (en) | 2015-11-18 |
Family
ID=54532937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520406690.0U Active CN204792944U (en) | 2015-06-12 | 2015-06-12 | Secondary cell negative pole seals body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792944U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047834A (en) * | 2015-06-12 | 2015-11-11 | 福建南平南孚电池有限公司 | Negative electrode sealing body of secondary battery |
| WO2016197563A1 (en) * | 2015-06-12 | 2016-12-15 | 福建南平南孚电池有限公司 | Negative electrode sealing body of secondary battery |
-
2015
- 2015-06-12 CN CN201520406690.0U patent/CN204792944U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047834A (en) * | 2015-06-12 | 2015-11-11 | 福建南平南孚电池有限公司 | Negative electrode sealing body of secondary battery |
| WO2016197563A1 (en) * | 2015-06-12 | 2016-12-15 | 福建南平南孚电池有限公司 | Negative electrode sealing body of secondary battery |
| CN105047834B (en) * | 2015-06-12 | 2017-06-09 | 福建南平南孚电池有限公司 | A kind of secondary battery negative pole seal body |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |