CN204011549U - Electrode terminal, the battery cover board assembly with it, battery and battery pack - Google Patents
Electrode terminal, the battery cover board assembly with it, battery and battery pack Download PDFInfo
- Publication number
- CN204011549U CN204011549U CN201320892045.5U CN201320892045U CN204011549U CN 204011549 U CN204011549 U CN 204011549U CN 201320892045 U CN201320892045 U CN 201320892045U CN 204011549 U CN204011549 U CN 204011549U
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- Prior art keywords
- terminal
- connecting ring
- leading
- battery
- out terminal
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- Expired - Lifetime
Links
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- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000007598 dipping method Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims 4
- 238000000429 assembly Methods 0.000 claims 4
- 238000003466 welding Methods 0.000 abstract description 55
- 238000007789 sealing Methods 0.000 abstract description 15
- 238000004140 cleaning Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 50
- 229910052782 aluminium Inorganic materials 0.000 description 47
- 239000004411 aluminium Substances 0.000 description 42
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 35
- 229910052802 copper Inorganic materials 0.000 description 33
- 239000010949 copper Substances 0.000 description 33
- 230000000694 effects Effects 0.000 description 21
- 238000000034 method Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000005755 formation reaction Methods 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 8
- 230000007704 transition Effects 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- -1 when interconnecting Chemical compound 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
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- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses electrode terminal, have its battery cover board assembly, battery and battery pack, wherein said electrode terminal comprises: leading-out terminal; And connecting ring, described connecting ring and described leading-out terminal are made up of different metal materials, and described connecting ring is set in the upper end of described leading-out terminal and welds with described leading-out terminal, between described connecting ring and the upper end of described leading-out terminal, has weld groove; The cross section of the cross section of the centre bore of described connecting ring and the upper end of leading-out terminal is all circle, ellipse or polygon.The electrode terminal of the utility model embodiment, cleaning efficiency and the cleaning performance of electrode terminal are improved, and ensure the sealing of welding between connecting ring and leading-out terminal, thereby improved manufacturability and the production efficiency of electrode terminal, reduced cost.
Description
Technical field
The utility model relates to battery technology field, more specifically, relates to a kind of electrode terminal, has battery cover board assembly, battery and the battery pack of this electrode terminal.
Background technology
Electrokinetic cell electric automobile is the vitals of electric automobile, and electric automobile performance is existed to material impact.Battery pack is by formation in series or in parallel with each other multiple cells, and the performance to battery pack of the quality of connection between cell has a significant impact.
Utility model content
The application makes with understanding with true discovery following problem based on utility model people: in the time being connected cell with connector, bonding strength between the electrode terminal of cell and power connector has a great impact the performance of battery pack, because positive terminal and the negative terminal of cell are made up of different metal, for example, the positive terminal of battery is conventionally made of aluminum, the negative terminal of battery is made of copper conventionally, conventionally adopt explosive welding (EW), stored energy welding and friction welding (FW) carry out copper aluminium welding, due to the welding fusing point difference of copper aluminium, when interconnecting, copper aluminium easily occurs that not prison welding leans on, produce welding gap, weld strength is low, salt fog resistance is poor, contact resistance is large, affect the performance of battery pack, and, the cost of above-mentioned welding method is high, complex process, application is restricted.Therefore, there is improved demand.
The utility model is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, an object of the present utility model is to propose a kind of electrode terminal, utilizes this electrode terminal, can avoid welding different metal connecting when cell, and be connected firmly, stability is high.
Another object of the present utility model is to propose a kind of battery cover board assembly with above-mentioned electrode terminal.
Another object of the present utility model is to propose a kind of battery with above-mentioned battery cover board assembly.
Another object of the present utility model is to propose a kind of battery pack with above-mentioned battery.
According to the electrode terminal of the utility model embodiment, comprising: leading-out terminal; And connecting ring, described connecting ring and described leading-out terminal are made up of different metal materials, and described connecting ring is set in the upper end of described leading-out terminal and welds with described leading-out terminal, between described connecting ring and the upper end of described leading-out terminal, has weld groove; The cross section of the cross section of the centre bore of described connecting ring and the upper end of leading-out terminal is all circle, ellipse or polygon.
According to the electrode terminal of the utility model embodiment, by weld groove being set between the upper end at connecting ring and the upper end of leading-out terminal, when welding, weld groove can be assembled unnecessary scolder and residue, avoid scolder excessive, making to weld residue easily cleans, avoid scolder to spill into other solders side of electrode terminal and affect welding, cleaning efficiency and the cleaning performance of electrode terminal are improved, and ensure the sealing of welding between connecting ring and leading-out terminal, thereby the manufacturability and the production efficiency that have improved electrode terminal, reduced cost.
And, because leading-out terminal and connecting ring are made up of different metal materials, therefore,, in the time connecting the cell that uses this electrode terminal, can avoid the welding between different metal material, for example, in the time that this metal terminal is the negative terminal of copper one-tenth, connecting ring can be made of aluminum, thereby the power connector that can be formed from aluminium connects the electrode terminal of cell, connecting ring and the welding of power connector, avoid the welding between copper and aluminium, increased bonding strength.
According to the battery cover board assembly of an embodiment of the utility model second aspect, comprising: main body cover plate, described main body cover plate is provided with fairlead; There is the insulating sealer of through hole; Electrode terminal, described electrode terminal is through described through hole and described fairlead, and described electrode terminal is according to the electrode terminal described in above-described embodiment.
According to the battery cover board assembly of another embodiment of the utility model second aspect, comprising: main body cover plate, described main body cover plate is provided with the first fairlead and the second fairlead; There is first insulating sealer and second insulating sealer with the second through hole of the first through hole; Positive terminal and negative terminal, described positive terminal is through described the first through hole and described the first fairlead, described negative terminal is through described the second through hole and described the second fairlead, described negative terminal is according to the electrode terminal described in above-described embodiment, and the connecting ring of described negative terminal is made up of identical metal material with described positive terminal.
According to the battery cover board assembly of another embodiment of the utility model second aspect, comprising: main body cover plate, described main body cover plate is provided with the first fairlead and the second fairlead; There is first insulating sealer and second insulating sealer with the second through hole of the first through hole; Positive terminal and negative terminal, described positive terminal is through described the first insulating sealer and described the first fairlead, described negative terminal is through described the second insulating sealer and described the second fairlead, described positive terminal is according to the electrode terminal described in above-described embodiment, and the connecting ring of described positive terminal is made up of identical metal material with described negative terminal.
According to the battery of the utility model third aspect embodiment, comprise according to the battery cover board assembly described in above-described embodiment.
According to the battery pack of an embodiment of the utility model fourth aspect, comprising: multiple batteries, described battery has positive terminal and negative terminal, and wherein said negative terminal is to be according to the electrode terminal described in above-described embodiment according to claim; Power brace, described power brace is electrically connected adjacent described battery, and described power brace, described negative pole connecting ring and described positive terminal are made up of identical metal material.
According to the battery pack of another embodiment of the utility model fourth aspect, comprising: multiple batteries, described battery has positive terminal and negative terminal, and wherein said positive terminal is according to the electrode terminal described in above-described embodiment; Power brace, described power brace is electrically connected adjacent described battery, and connecting ring and the described negative terminal of described power brace, described positive terminal are made up of identical metal material.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is according to the profile of the electrode terminal of an embodiment of the utility model;
Fig. 2 is according to the profile of the electrode terminal of another embodiment of the utility model;
Fig. 3 is according to the profile of the electrode terminal of another embodiment of the utility model;
Fig. 4 is according to the structural representation of connecting ring in Fig. 3;
Fig. 5 is according to the perspective view of the electrode terminal of an embodiment of the utility model;
Fig. 6 is according to the profile of the electrode terminal of another embodiment of the utility model;
Fig. 7 is according to the structural representation of the battery cover board assembly of an embodiment of the utility model;
Fig. 8 is according to the structural representation of the battery cover board assembly of another embodiment of the utility model;
Fig. 9 is the partial structurtes schematic diagram in Fig. 8;
Figure 10 is according to the structural representation of the battery cover board assembly of another embodiment of the utility model;
Figure 11 is the partial structurtes schematic diagram in Figure 10;
Figure 12 is according to the profile of the cover plate of the battery cover board assembly of an embodiment of the utility model;
Figure 13 is according to the vertical view of the cover plate of the battery cover board assembly of an embodiment of the utility model;
Figure 14 is the partial structurtes schematic diagram of Figure 11;
Figure 15 is according to the structural representation of the battery pack of the utility model embodiment.
Reference numeral:
Electrode terminal 100;
Leading-out terminal 10; Upper end 11; Flange 12; The first annular flat part 121; Annular rake 122; The second annular flat part 123; Leading-out terminal lower end 13; Weld groove 14;
Battery cover board assembly 200(200a, 200a ');
Connecting ring 20; Centre bore 21; Upper hole section 211; Bottom hole section 212;
Boss 50;
Insulating sealer 60; The first insulating sealer 60a(60a '); The second insulating sealer 60b(60b '); Through hole 61; The first through hole 61a(61a '); The second through hole 61b(61b ');
Upper end hole section 611; Interstitial hole section 612; Lower stomidium section 613; Annular groove 6131;
The first ring disk 70a(70a '); The second ring disk 70b(70b '); Upper flange 71a '; Lower flange 72a ';
Main body cover plate 80(80a, 80a '); Fairlead 81; The first fairlead 81a(81a ');
The second fairlead 81b(81b '); Upper fairlead section 811a '; Lower fairlead section 812a ';
Connect aluminium flake 90; Installing hole 91;
Battery pack 300.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term length " " thickness ", " on ", orientation or the position relationship of the instruction such as D score, " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of the device of instruction or hint indication or element must have specific orientation, with specific orientation structure with operate, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
First specifically describe by reference to the accompanying drawings the electrode terminal 100 according to the utility model embodiment below.
As shown in Figures 1 to 6, comprise leading-out terminal 10 and connecting ring 20 according to the electrode terminal 100 of the utility model embodiment.Particularly, connecting ring 20 and leading-out terminal 10 are made up of different metal materials, and connecting ring 20 is enclosed within on the upper end 11 of leading-out terminal 10 and welds with leading-out terminal 10, between connecting ring 20 and the upper end of leading-out terminal 10, has weld groove 14.
Thus, according to the electrode terminal 100 of the utility model embodiment, by weld groove 14 being set between the upper end at connecting ring 20 and the upper end of leading-out terminal 10, when welding, weld groove 14 can be assembled unnecessary scolder and residue, avoid scolder excessive, making to weld residue easily cleans, avoid scolder to spill into other solders side of electrode terminal 100 and affect welding, cleaning efficiency and the cleaning performance of electrode terminal 100 are improved, and ensure the sealing of welding between connecting ring 20 and leading-out terminal 10, thereby manufacturability and the production efficiency of electrode terminal 100 are improved, reduce cost.
And, because leading-out terminal 10 and connecting ring 20 are made up of different metal materials, therefore, in the time connecting the cell that uses this electrode terminal 100, can avoid the welding between different metal material, for example, in the time that this metal terminal is the negative terminal of copper one-tenth, connecting ring 20 can be made of aluminum, thereby the power connector that can be formed from aluminium connects the electrode terminal 100 of cell, connecting ring 20 and the welding of power connector, avoid the welding between copper and aluminium, increase bonding strength, be not easy to produce welding gap, salt fog resistance is strong, contact resistance is little, improve the performance of battery pack, and, reduce welding cost high, simplify technique, applied range.
It should be noted that, in correlation technique, on the upper end 11 of leading-out terminal 10 when sheathed connecting ring 20, the upper surface of connecting ring 20 is conventionally concordant with the upper surface of leading-out terminal 10, in the time that leading-out terminal 10 and connecting ring 20 are welded, unnecessary scolder and residue can outwards overflow from the upper surface of the upper surface of leading-out terminal 10 and connecting ring 20, the scolder overflowing and residue are fallen other positions that need to weld, can have a strong impact on welding effect and the sealing of other solders side, and scolder and residue clean difficulty, and cleaning efficiency is low.
And according to the electrode terminal 100 of the utility model embodiment, by limiting weld groove 14 between the upper end at connecting ring 20 and the upper end of leading-out terminal 10, scolder and reference unnecessary in welding process can be gathered in weld groove 14, be difficult for spilling on other solders side, thereby welding effect and the sealing of electrode terminal 100 entirety are ensured, and scolder and residue overflow few, major part concentrates in weld groove 14, easy to clean, cleaning efficiency effectively improves, thereby has improved the production efficiency of electrode terminal 100 entirety.
Wherein, between connecting ring 20 and the upper end 11 of leading-out terminal 10, comprise between the side surface of connecting ring 20 and the side surface of upper end 11 and/or between the side surface of connecting ring 20 and the upper surface of leading-out terminal 10.Describe the position relationship of weld groove 14 between connecting ring 20 and the upper end 11 of leading-out terminal 10 in detail below in conjunction with specific embodiment.
The structure that limits weld groove 14 between the upper end of connecting ring 20 and the upper end of leading-out terminal 10 is not particularly limited, and limits the spatial accommodation that can hold scolder and residue as long as meet in the upper end of connecting ring 20 and the upper end of leading-out terminal 10.Alternatively, as shown in Figure 1, according to an embodiment of the present utility model, the upper surface of connecting ring 20 flushes with the upper surface of leading-out terminal 10, and weld groove 14 is located between the periphery edge of upper end of leading-out terminal 10 and the inner edge of the upper end of connecting ring 20.
In other words, the upper surface of the upper surface of connecting ring 20 and leading-out terminal 10 at grade, connecting ring 20 is set on the upper end 11 of leading-out terminal 10, the periphery wall of the internal perisporium laminating leading-out terminal 10 of connecting ring 20, the cooperation place of the upper end of the upper end of connecting ring 20 and leading-out terminal 10 be formed with along the circumferential extension of leading-out terminal 10 weld groove 14.Thus, all can flow in weld groove 14 along unnecessary scolder and residue after the circumferential welding of leading-out terminal 10, improve the effect of assembling scolder and residue.
According to an embodiment of the present utility model, weld groove 14 is for annular and have V-arrangement cross section.Particularly, weld groove 14 is formed as the cannelure around leading-out terminal 10, and the cross section of this cannelure is formed as V font, that is to say, and this weld groove 14 opening up, two sidewalls that form weld groove 14 are respectively downwards and the formation inclined-plane that extends internally.Thus, when the weld groove 14 of this structure can conveniently weld, unnecessary scolder and residue flow into the bottom of weld groove 14 from inclined-plane, are convenient to scolder and residue to collect.Certainly, the cross section of weld groove 14 is not limited to V-arrangement, also can hold rapidly for other shape of scolder and residue.
Particularly, the position of the weld groove 14 limiting in the upper end of connecting ring 20 and the upper end of leading-out terminal 10 is not particularly limited, alternatively, according to an embodiment of the present utility model, weld groove 14 is formed by chamfering or rounding at least one in the inner edge of the periphery edge of the upper end of leading-out terminal 10 and the upper end of connecting ring 20.
That is to say, this weld groove 14 can be located at the upper end of connecting ring 20, also can be located at the upper end of leading-out terminal 10, can also be located between the upper end of connecting ring 20 and the upper end of leading-out terminal 10.In the time that weld groove 14 is located at the upper end of connecting ring 20, leading-out terminal 10 can be complete column structure, and the inner edge of the upper end of the internal perisporium of connecting ring 20 is provided with notch, and this notch coordinates formation weld groove 14 with the periphery wall of leading-out terminal 10; In the time that weld groove 14 is located at the upper end of leading-out terminal 10, to draw connecting ring 20 and can be formed as complete circular cylindrical structure, the periphery of the upper end of the periphery wall of leading-out terminal 10 is along being provided with notch, and this notch coordinates formation weld groove 14 with the internal perisporium of connecting ring 20; In the time that groove is located between the upper end of connecting ring 20 and the upper end of leading-out terminal 10, can on the inner edge of the upper end of the internal perisporium of connecting ring 20, be provided with notch, the periphery of the upper end of the periphery wall of leading-out terminal 10 along on be also provided with notch, the notch on connecting ring 20 coordinates this weld groove 14 of formation with the notch on leading-out terminal 10.
As shown in Figure 2, according to an embodiment of the present utility model, the upper surface of leading-out terminal 10 is positioned at the centre bore of connecting ring 20, and the upper surface of the internal perisporium of connecting ring 20 and leading-out terminal 10 limits weld groove 14.Particularly, the upper surface that the upper surface of the internal perisporium of connecting ring 20 upwards extends beyond leading-out terminal 10 is to form weld groove 14.That is to say, the axial length of connecting ring 20 is greater than the axial length of the upper end 11 of leading-out terminal 10, the lower surface of connecting ring 20 flushes with the lower surface of the upper end 11 of leading-out terminal 10, the upper surface of connecting ring 20 exceeds the upper surface of leading-out terminal 10, and the upper surface of leading-out terminal 10 coordinates and forms groove 14 with the internal perisporium of connecting ring 20 of upper surface that exceeds leading-out terminal 10.Thus, the groove 14 of this structure has larger spatial accommodation, can hold more scolder and residue, further reduces the amount that scolder and residue overflow, and ensures the overall welding effect of electrode terminal 100.
Further, the periphery of the upper end of leading-out terminal 10 is along being provided with chamfering or rounding.This chamfering or rounding make to form groove between the upper end of outer peripheral face of leading-out terminal 10 and the internal perisporium of connecting ring 20, make groove 14 have larger spatial accommodation, further ensure the welding effect of electrode terminal 100.
In other embodiments of the present utility model, as shown in Figure 3 and Figure 4, the centre bore 21 of connecting ring 20 comprises upper hole section 211 and bottom hole section 212, the radial dimension of upper hole section 211 is greater than the radial dimension of bottom hole section 212, and the upper end 11 of leading-out terminal 10 is engaged in bottom hole section 212.Further, the upper surface of leading-out terminal 10 and bottom hole section 212 is upper along concordant.Thus, on the basis of normal welding that does not affect electrode terminal 100, can further expand the spatial accommodation of groove 14, thereby can hold more scolder and residue, further ensure the integral solder effect of electrode terminal 100.
Wherein, the cross section of the upper end of the cross section of the centre bore of connecting ring 20 and leading-out terminal 10 is all circle, ellipse or polygon.
According to an embodiment of the present utility model, leading-out terminal 10 has circular cross section, and the diameter of the upper end 11 of leading-out terminal 10 is less than the diameter of the remainder of leading-out terminal 10.Thus, can be so that the assembling of connecting ring 10 on leading-out terminal 10.
Alternatively, in other embodiments of the present utility model, weld groove 14 can also be located between the outside wall surface of upper end 11 and the internal face of connecting ring 20 of leading-out terminal 10.That is to say, the radial dimension of the outside wall surface of upper end 11 is less than the radial dimension of the internal face of connecting ring 20, in the time that the cross section of the outside wall surface of upper end 11 and the internal face of connecting ring 20 is all formed as circle, between the internal face of the outside wall surface of upper end 11 and connecting ring 20, form annular vacancy, this vacancy forms weld groove 14.The weld groove 14 of this structure makes to have larger bonding area between connecting ring 20 and leading-out terminal 10, can further improve both welding stabilities.
As shown in Figure 6, according to an embodiment of the present utility model, the outer peripheral face of leading-out terminal 10 is provided with flange 12, connecting ring 20 is positioned at flange 12 tops, and at least one in the lower surface of the upper surface of flange 12 and connecting ring 20 is provided with the boss 50 between the upper surface of flange 12 and the lower surface of connecting ring 20.Thus, by boss 50 being set between connecting ring 20 and ring part 31, can make the upper surface of ring part 31 and the lower surface of connecting ring 20 spaced apart and not exclusively contact, in the time of welding, without together with the upper surface integral solder of the lower surface of connecting ring 20 and ring part 31, thereby reduce the welding stress that ring part 31 and flange 12 are subject to, avoided flange 12 to deform, and then the sealing of electrode terminal 100 and fixing are improved.
Particularly, flange 12 can comprise the first annular flat part 121 of being connected with leading-out terminal 10, from the annular rake 122 of the downward outward-dipping extension in outer of the first annular flat part 121 and from the periphery of the annular rake 122 outside annular flat parts 121 of horizontally extending the second annular flat part 123, the first along and the periphery of connecting ring 20 along concordant or stretch out and exceed the periphery edge of connecting ring 20.Alternatively, according to an embodiment of the present utility model, boss 50 is located on the first annular flat part 121.Further, arc transition between the lower surface of the first annular flat part 121 and the outer peripheral face of leading-out terminal 10.
Be that the plane that on flange 12, level height is the highest is the upper surface of the first annular flat part 121, on the upper surface of the first annular flat part 121, be provided with boss 50, the junction of the outer peripheral face of the lower surface of the first annular flat part 121 and leading-out terminal 10 is formed as circular arc, and the sectional dimension of the first annular flat part 121 is greater than or equal to the sectional dimension of connecting ring 20.
Wherein, in embodiments more of the present utility model, flange 12 is integrally formed with leading-out terminal 10.Thus, not only convenient formation of the structure being integrally formed, has reduced preparation cost, and has ensured the overall structure stability of leading-out terminal 10, also makes the connection of whole electrode terminal 100 more firm simultaneously.
The structure of boss 50 can rationally arrange according to concrete requirement, and alternatively, according to an embodiment of the present utility model, boss 50 is annular.Be that boss 50 is located between connecting ring 20 and flange 12, and be formed as annular.Thus, make can form annular contact surface between connecting ring 20 and flange 12, the lower surface of connecting ring 20 can form complete annular welds junction around leading-out terminal 10 and flange 12 in the time of welding, makes welding comparatively firm.
Further, according to an embodiment of the present utility model, boss 50 is multiple, and multiple boss 50 are arranged and being radially spaced apart from each other along leading-out terminal 10 with one heart.As shown in Figure 9, boss 50 is formed as two, two boss 50 intervals are located on the upper surface of flange 12, the height of two boss 50 equates, so that the upper surface of two boss 50 can both contact with the lower surface of connecting ring 20, and then can weld together with two boss 50 connecting ring 20 simultaneously, bonding area is increased, welding position is more even, welds more firm.
Certainly, the setting of boss 50 is not limited only to this, and for example, in other embodiments of the present utility model, boss 50 is located on the lower surface of connecting ring 20.Be located on flange 12 similarly with boss 50, in the time that boss 50 is located on the lower surface of connecting ring 20, the structure of boss 50 also can be formed as annular, and the quantity of boss 50 can be multiple, and spaced apart setting, therefore, its concrete structure and technique effect repeat no more.
The material of preparing of connecting ring 20 and leading-out terminal 10 can be the conventional electrode material of those of ordinary skill in the art, and alternatively, according to an embodiment of the present utility model, connecting ring 20 is aluminium ring, and leading-out terminal 10 is copper tip.That is to say, connecting ring 20 is for aluminum material is prepared from, and leading-out terminal 10 is prepared from for copper material.In other embodiments of the present utility model, connecting ring 20 can be also copper ring, and leading-out terminal 10 is aluminium terminal.
According to an embodiment of the present utility model, the radial dimension of the upper end 11 of leading-out terminal 10 is less than the radial dimension of the remainder of leading-out terminal 10.Be the radial dimension minimum of the upper end 11 of leading-out terminal 10, the radial dimension of the flange 12 on leading-out terminal 10 is larger.Now, when on the upper end 11 at leading-out terminal 10 when sheathed connecting ring 20, the size of connecting ring 20 can be less, thereby can save material usage.Meanwhile, the less enclosed electrode terminal 100 that is also easier in the upper end 11 of leading-out terminal 10.
In addition, because connecting ring 20 is set on the upper end 11 of leading-out terminal 10, in the time that the upper end 11 of leading-out terminal 10 changes, connecting ring 20 also should make corresponding change.For example, according to an embodiment of the present utility model, the centre bore 61 of connecting ring 20 and the upper end 11 of leading-out terminal 10 have noncircular cross section, are specifically as follows ellipse or polygon, and polygon can be triangle, quadrangle, hexagon etc.The upper end 11 that is leading-out terminal 10 is formed as non-cylindrical, and correspondingly, the shape of the centre bore 61 of connecting ring 20 is also formed as non-circular, with the shape adaptation of the upper end 11 of leading-out terminal 10.
It should be noted that, according to the electrode terminal 100 of the utility model embodiment, can be located at the positive pole of battery, also can be located at the negative pole of battery.Because the positive pole of battery is generally aluminium electrode, negative pole is generally copper electrode.Therefore, when be located at battery anodal according to the electrode terminal 100 of the utility model embodiment, leading-out terminal 10 is copper tip, and 20 of connecting rings are aluminium ring.In the time being located at the negative pole of battery according to the electrode terminal 100 of the utility model embodiment, leading-out terminal 10 is aluminium terminal, and 20 of connecting rings are copper ring.
Specifically describe according to the battery cover board assembly 200 of the utility model embodiment below in conjunction with drawings and Examples.
Embodiment 1
In embodiment of the present utility model, as shown in Figure 7, battery cover board assembly 200 comprises: main body cover plate 80, insulating sealer 60 and according to the electrode terminal 100 described in the utility model above-described embodiment.Particularly, main body cover plate 80 is provided with fairlead 81, and insulating sealer 60 has through hole 61, and electrode terminal 100 is arranged in main body cover plate 80 through through hole 61 and fairlead 81.
Can be applied to anodal and negative pole according to the battery cover board assembly 200 of the utility model embodiment is located at respectively on the battery at two ends, battery cover board assembly 200 is located at respectively the two ends of battery and seals described battery, can be positive terminal and/or the negative terminal of battery according to the electrode terminal 100 of the utility model above-described embodiment, the electrode terminal 100 that is positioned at two ends passes respectively main body cover plate 80 and is arranged in main body cover plate 80.Because the electrode terminal 100 according to the utility model above-described embodiment has above-mentioned technique effect, therefore, also there is corresponding technique effect according to the battery cover board assembly 200 of the utility model embodiment.
Embodiment 2
As shown in Figure 8 and Figure 9, in embodiment of the present utility model, battery cover board assembly 200a comprises: main body cover plate 80a, the first insulating sealer 60a and the second insulating sealer 60b, positive terminal and negative terminal.
Particularly, main body cover plate 80a is provided with the first fairlead 81a and the second fairlead 81b, the first insulating sealer 60a has the first through hole 61a, the second insulating sealer 60b has the second through hole 61b, positive terminal is through the first through hole 61a and the first fairlead 81a, negative terminal is through the second through hole 61b and the second fairlead 81b, wherein, negative terminal is according to the electrode terminal 100 described in more above-mentioned embodiment, and the connecting ring 20 of negative terminal is made up of identical metal material with positive terminal, be according to the copper tip of the utility model above-described embodiment at the negative terminal described in the utility model embodiment, 20 of connecting rings are the loop configuration identical with positive terminal material.
Can be applied to anodal and negative pole according to the battery cover board assembly 200a of the utility model embodiment is located on the battery of same one end, battery cover board assembly 200a is located on one end of battery and seals described battery, negative terminal can be the electrode terminal 100 becoming with copper according to the utility model above-described embodiment, positive terminal can be the terminal conventional according to those of ordinary skill in the art, and 20 of connecting rings are the loop configuration identical with positive terminal material.
Thus, positive terminal and negative terminal are arranged in the first fairlead 81a and the second fairlead 81b of main body cover plate 80a through the first insulating sealer 60a and the second insulating sealer 60b sealing respectively, battery cover board assembly 200a coordinates the end that is arranged on battery, thereby by battery complete seal.Because the electrode terminal 100 according to the utility model embodiment has above-mentioned technique effect, therefore also there is corresponding technique effect according to the battery cover board assembly 200a of the utility model embodiment.That is: by transition weld layer 30 being set between the different leading-out terminal 10 of material and connecting ring 20, and transition weld layer 30 is welded to realize being connected of leading-out terminal 10 and connecting ring 20 with leading-out terminal 10 and connecting ring 20 respectively, the fastness being connected and stability between connecting ring and leading-out terminal are improved, in welding process, transition weld layer 30 can also play minimizing scolder and flow to the effect on leading-out terminal 10, avoid solder temperature too high and cause leading-out terminal 10 to be out of shape, improved the fail safe of electrode terminal 100.
For the sealing that ensures that electrode terminal 100 and main body cover plate 80a assemble, alternatively, according to an embodiment of the present utility model, this battery cover board assembly 200a also comprises: be arranged on the first ring disk 70a in the first fairlead 81a and be arranged on the second ring disk 70b in the second fairlead 81b, the first insulating sealer 60a is supported on the first ring disk 70a, the second insulating sealer 60b is supported on the second ring disk 70b, positive terminal and negative terminal are arranged on main body cover plate 80a through the second ring disk 70b sealing that is arranged on the first ring disk 70a in the first fairlead 81a and be arranged in the second fairlead 81b respectively.
Particularly, the outer peripheral face of negative terminal is provided with flange 12, flange 12 comprises the first annular flat part 121 being connected with leading-out terminal 10, from the annular rake 122 of the downward outward-dipping extension in outer of the first annular flat part 121 with from outside horizontally extending the second annular flat part 123 of annular rake 122, the periphery of the first annular flat part 121 along with the periphery of connecting ring 20 along concordant or stretch out and exceed the periphery edge of connecting ring 20, wherein the first insulating sealer 60a is clamped between the first ring disk 70a and the second annular flat part 123 and with the second annular flat part 123 and welds.Thus, by the first ring disk 70a is set between the first insulating sealer 60a and main body cover plate 80a, can effectively ensure the sealing of electrode terminal 100 and main body cover plate 80a.
Embodiment 3
As shown in Figure 10 and Figure 11, in embodiment of the present utility model, battery cover board assembly 200a ' comprising: main body cover plate 80a ', the first insulating sealer 60a ' and the second insulating sealer 60b ', positive terminal and negative terminal.
Particularly, main body cover plate 80a ' is provided with the first fairlead 81a ' and the second fairlead 81b ' (as shown in Figure 12 and Figure 13), the first insulating sealer 60a ' has the first through hole 61a ', the second insulating sealer 60b ' has the second through hole 61b ', positive terminal is through the first through hole 61a ' and the first fairlead 81a ', negative terminal is through the second through hole 61b ' and the second fairlead 81b ', wherein, positive terminal is according to the electrode terminal 100 described in more above-mentioned embodiment, and the connecting ring 20 of positive terminal is made up of identical metal material with negative terminal, be according to the aluminium terminal of the utility model above-described embodiment at the positive terminal described in the utility model embodiment, 20 of connecting rings are the loop configuration identical with negative terminal material.
Can be applied to anodal and negative pole according to the battery cover board assembly 200a ' of the utility model embodiment is located on the battery of same one end, battery cover board assembly 200a ' is located on one end of battery and seals described battery, positive terminal can be the electrode terminal 100 becoming with copper according to the utility model above-described embodiment, negative terminal can be the terminal conventional according to those of ordinary skill in the art, and 20 of connecting rings are the loop configuration identical with negative terminal material.
Thus, positive terminal and negative terminal are arranged in the first fairlead 81a ' and the second fairlead 81b ' of main body cover plate 80a ' through the first insulating sealer 60a ' and the second insulating sealer 60b ' sealing respectively, battery cover board assembly 200a ' coordinates the end that is arranged on battery, thereby by battery complete seal.Because the electrode terminal 100 according to the utility model embodiment has above-mentioned technique effect, therefore also there is corresponding technique effect according to the battery cover board assembly 200a ' of the utility model embodiment.That is: by transition weld layer 30 being set between the different leading-out terminal 10 of material and connecting ring 20, and transition weld layer 30 is welded to realize being connected of leading-out terminal 10 and connecting ring 20 with leading-out terminal 10 and connecting ring 20 respectively, the fastness being connected and stability between connecting ring and leading-out terminal are improved, in welding process, transition weld layer 30 can also play minimizing scolder and flow to the effect on leading-out terminal 10, avoid solder temperature too high and cause leading-out terminal 10 to be out of shape, improved the fail safe of electrode terminal 100.
For the sealing that ensures that electrode terminal 100 and main body cover plate 80a ' assemble, alternatively, according to an embodiment of the present utility model, this battery cover board assembly 200a ' also comprises: be arranged on the first ring disk 70a ' in the first fairlead 81a ' and be arranged on the second ring disk 70b ' in the second fairlead 81b ', the first insulating sealer 60a ' is supported on the first ring disk 70a ', the second insulating sealer 60b ' is supported on the second ring disk 70b ', positive terminal and negative terminal are arranged on main body cover plate 80a ' through the second ring disk 70b ' sealing that is arranged on the first ring disk 70a ' in the first fairlead 81a ' and be arranged in the second fairlead 81b ' respectively.
Particularly, the outer peripheral face of positive terminal is provided with flange 12, flange 12 comprises the first annular flat part 121 being connected with leading-out terminal 10, from the annular rake 122 of the downward outward-dipping extension in outer of the first annular flat part 121 with from outside horizontally extending the second annular flat part 123 of annular rake 122, the periphery of the first annular flat part 121 along with the periphery of connecting ring 20 along concordant or stretch out and exceed the periphery edge of connecting ring 20, wherein the first insulating sealer 60a ' is clamped between the first ring disk 70a ' and the second annular flat part 123 and with the second annular flat part 123 and welds.
In other words, the two ends of the first insulating sealer 60a ' weld together with the second annular flat part 123 of the first ring disk 70a ' and flange 12 respectively, the first ring disk 70a is positioned between the first insulating sealer 60a ' and main body cover plate 80a ', the lower surface of the first ring disk 70a ' contacts with the first fairlead 81a ' of main body cover plate 80a ', and the upper surface of the first ring disk 70a ' and the first insulating sealer 60a ' weld together.Thus, by the first ring disk 70a ' is set between the first insulating sealer 60a ' and main body cover plate 80a ', positive terminal and the first insulating sealer 60a ', the first ring disk 70a ' and main body cover plate 80a ' are installed togather and form the system of sealing, can effectively ensure the sealing of positive terminal and main body cover plate 80a '.
Further, in embodiments more of the present utility model, the first insulating sealer 60a ' and the second insulating sealer 60b ' are ceramic-seal ring.Compared with rubber seal ring, adopt ceramic-seal ring can effectively extend the useful life of battery cover board assembly 200a '.Wherein, ceramic-seal ring can be the ceramic-seal rings such as Al2O3, AlN, BN or BeO.In addition, consider that ceramic-seal ring will be weldingly connected with the first ring disk 70a ', the second insulating sealer 60b ' and flange 12, and ceramic-seal ring is carried out to comparatively difficulty of directly welding, therefore, can do further processing to ceramic-seal ring, to reduce the difficulty of welding.For example, can carry out metalized on the surface of ceramic-seal ring, to reach the object of easy welding.Particularly, can be on the upper surface of ceramic-seal ring or lower surface nickel coating, zinc coat or sputtered aluminum layer etc.
As shown in figure 14, according to an embodiment of the present utility model, each in the first through hole 61a ' and the second through hole 61b ' comprises hole section 611, interstitial hole section 612 and lower hole section 613, and the radial dimension of upper hole section 611 and lower hole section 613 is all greater than the radial dimension of interstitial hole section 612.
Particularly, taking the first insulating sealer 60a ' as example, the middle part of the first insulating sealer 60a ' is provided with the first through hole 61a ' of up/down perforation, the upper surface of the first insulating sealer 60a ' is provided with hole section 611, the lower surface of the first insulating sealer 60a ' is provided with lower hole section 613, and the radial dimension of upper hole section 611 and lower hole section 613 is all greater than the radial dimension of interstitial hole section 612, the radial dimension of interstitial hole section 612 is more than or equal to the radial dimension of the lower end 13 of positive terminal, so that the first insulating sealer 60a ' can be set on positive terminal.
Further, the roof of lower hole section 613 is provided with annular groove 6131.Thus, when the lower surface contact weld of the upper surface of the first ring disk 70a ' and the first insulating sealer 60a ', need to avoid lower hole section 613 and annular groove 6131, distance between the first ring disk 70a ' and positive terminal is strengthened, the creepage distance of the first insulating sealer 60a ' is increased, and breakdown voltage resistant ability improves.Meanwhile, the setting of annular groove 6131 also can avoid scolder trickling in the time of welding to trickle and be difficult to the problem of cleaning everywhere.
According to an embodiment of the present utility model, the upper end of each in the first ring disk 70a ' and the second ring disk 70b ' is provided with upper flange 71a ' and lower end is provided with lower flange 72a ', each in the first fairlead 81a ' and the second fairlead 81b ' comprises fairlead section 811a ' and lower fairlead section 812a ' (as shown in figure 15), the radial dimension of upper fairlead section 811a ' is greater than the radial dimension of lower fairlead section 812a ', the lower flange 72a ' of the lower end of the first ring disk 70a ' and the first ring disk 70a ' be supported on the diapire of upper fairlead section 811a ' of the first fairlead 81a ' and with the inwall welding of the upper fairlead section 811a ' of the first fairlead 81a ', the lower flange 72a ' of the lower end of the second ring disk 70b ' and the second ring disk 70b ' be supported on the diapire of upper fairlead section 811a ' of the second fairlead 81b ' and with the inwall welding of the upper fairlead section 811a ' of the second fairlead 81b '.
That is to say, the first ring disk 70a ' is located in the upper fairlead section 811a ' of the first fairlead 81a ' of main body cover plate 80a ', the top and bottom of the first ring disk 70a ' are respectively equipped with upper flange 71a ' and lower flange 72a ', and upper flange 71a ' contacts with the diapire of upper fairlead section 811a ' with the first insulating sealer 60a ' respectively with lower flange 72a '.Thus, the first ring disk 70a ' and the contact area of the first insulating sealer 60a ' and main body cover plate 80a ' are increased, weld more firm.
Be all known for the person of ordinary skill of the art according to other formations of the battery cover board assembly 200a ' of the utility model embodiment, be not described in detail at this.
Comprise the battery cover board assembly 200(battery cover board assembly 200a according to the utility model embodiment, battery cover board assembly 200a ' according to the battery of the utility model embodiment).Battery cover board assembly 200(battery cover board assembly 200a, battery cover board assembly 200a ') be located at battery end with sealed cell.Due to according to the battery cover board assembly 200(battery cover board assembly 200a of the utility model embodiment, battery cover board assembly 200a ') there is above-mentioned technique effect, therefore, also there is corresponding technique effect according to the battery of the utility model embodiment.
As shown in figure 15, comprise according to multiple batteries of the utility model above-described embodiment and power brace 90 according to the battery pack 300 of the utility model embodiment.Wherein, battery has positive terminal and negative terminal, negative terminal can be that power brace 90 is electrically connected adjacent battery according to the copper tip described in above-described embodiment, and connecting ring 20 and the positive terminal of power brace 90, negative terminal are made up of identical metal material.
In other words, be according to the copper tip of the utility model above-described embodiment at the negative terminal described in the utility model embodiment, positive terminal can adopt the conventional electrode terminal of those of ordinary skill in the art, and the connecting ring 20 on negative terminal is the loop configuration identical with positive terminal material with 90 of power braces.
Comprise according to multiple batteries of the utility model above-described embodiment and power brace 90 according to the battery pack 300 in another embodiment of the utility model.Wherein, battery has positive terminal and negative terminal, positive terminal can be that power brace 90 is electrically connected adjacent battery according to the aluminium terminal in above-described embodiment, and connecting ring 20 and the negative terminal of power brace 90, positive terminal are made up of identical metal material.
That is to say, be according to the aluminium terminal of the utility model above-described embodiment at the positive terminal described in the utility model embodiment, negative terminal can adopt the conventional electrode terminal of those of ordinary skill in the art, and the connecting ring 20 on positive terminal is the loop configuration identical with negative terminal material with 90 of power braces.
Can be connected in parallel mutually for multiple batteries according to the battery pack of the utility model above-described embodiment, also can be connected in series mutually, can also connect and mix and be connected with parallel connection, below taking the positive terminal of battery as according to the aluminium terminal of the utility model above-described embodiment, negative terminal as specifically describing according to the battery pack of the utility model embodiment as example according to the copper tip of the utility model above-described embodiment.
In the time being connected in series between multiple batteries, power brace 90 is connected with negative terminal with the positive terminal on the battery of two adjacent settings respectively, the one end that is power brace 90 is connected with the positive terminal of a battery, and the other end is connected with the negative terminal of adjacent cell.Now, positive terminal is aluminium terminal, and negative terminal is copper tip, and negative terminal is arranged with the connecting ring 20 of aluminium matter on copper tip, and power brace 90 is aluminium flake.
Particularly, power brace 90 is provided with two installing holes 91 arranged spaced apart, the negative terminal of a battery, it is the connecting ring 20 that copper tip is provided with aluminium matter, connecting ring 20 and the copper tip of aluminium matter are weldingly connected, copper tip is according to the electrode terminal 100 in the more above-mentioned embodiment of the utility model, has corresponding technique effect, and connecting ring 20 and the copper tip of aluminium matter can be stablized welding.
An installing hole 91 of the power brace 90 of aluminium matter is set on connecting ring 20 and with it and is weldingly connected, another installing hole 91 of power brace 90 is set in the positive terminal of adjacent cell, be to be weldingly connected on aluminium terminal and with it, between the power brace 90 of the connecting ring 20 of aluminium matter and the power brace 90 of aluminium matter and aluminium matter and aluminium terminal, be connected the welding being between same metal material, effectively avoid the connected connection causing of copper aluminium welding to be difficult for and unsteady problem, convenient welding and welding effect are good, the stronger and fail safe of vibration resistance improves, the performance of battery pack is improved, and the price of aluminium is comparatively cheap, can reduce to a certain extent preparation cost.
In the time being connected in parallel between multiple batteries, power brace 90 is connected with positive terminal or negative terminal on the battery of two adjacent settings respectively, the one end that is power brace 90 is connected with the positive terminal of a battery, and the other end of power brace 90 is connected with the negative terminal in adjacent cell.Now, positive terminal is aluminium terminal, and negative terminal is copper tip, is arranged with the connecting ring 20 of aluminium matter on copper tip, and power brace 90 is aluminium flake.
Particularly, power brace 90 is provided with two installing holes 91 arranged spaced apart, the negative terminal of the battery of two adjacent settings, it is the connecting ring 20 that is respectively equipped with aluminium matter on copper tip, connecting ring 20 and the copper tip of aluminium matter are weldingly connected, copper tip is according to the electrode terminal 100 in the more above-mentioned embodiment of the utility model, has corresponding technique effect, and connecting ring 20 and the copper tip of aluminium matter can be stablized welding.The positive terminal of two adjacent settings, on aluminium terminal without connecting ring 20 is set.
Two installing holes 91 on the power brace 90 being connected with the negative terminal of adjacent two batteries are set in respectively adjacent two negative terminals, be on the connecting ring 20 of aluminium matter of copper tip, and be weldingly connected with two connecting rings 20 respectively, positive terminal with adjacent two batteries, be that two installing holes 91 on the connected power brace 90 of aluminium terminal are set in respectively two positive terminals, be to be weldingly connected with it on aluminium terminal and respectively, between the power brace 90 of the connecting ring 20 of aluminium matter and the power brace 90 of aluminium matter and aluminium matter and aluminium terminal, be connected the welding being between same metal material, effectively avoid the connected connection causing of copper aluminium welding to be difficult for and unsteady problem, convenient welding and welding effect are good, the stronger and fail safe of vibration resistance improves, the performance of battery pack is improved, and the price of aluminium is comparatively cheap, can reduce to a certain extent preparation cost.
Be all known for the person of ordinary skill of the art according to other formations of the battery pack of the utility model embodiment, be not described in detail at this.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in the situation that not departing from principle of the present utility model and aim in scope of the present utility model, amendment, replacement and modification.
Claims (17)
1. an electrode terminal, is characterized in that, comprising:
Leading-out terminal; And
Connecting ring, described connecting ring and described leading-out terminal are made up of different metal materials, and described connecting ring is set in the upper end of described leading-out terminal and welds with described leading-out terminal, between described connecting ring and the upper end of described leading-out terminal, has weld groove;
The cross section of the cross section of the centre bore of described connecting ring and the upper end of leading-out terminal is all circle, ellipse or polygon.
2. electrode terminal according to claim 1, is characterized in that, the upper surface of described connecting ring flushes with the upper surface of described leading-out terminal, and described weld groove is located between the periphery edge of upper end of described leading-out terminal and the inner edge of the upper end of described connecting ring.
3. electrode terminal according to claim 2, is characterized in that, described weld groove is for annular and have V-arrangement cross section.
4. electrode terminal according to claim 2, is characterized in that, described weld groove is formed by chamfering or rounding at least one in the inner edge of the periphery edge of the upper end of described leading-out terminal and the upper end of described connecting ring.
5. electrode terminal according to claim 1, is characterized in that, described weld groove is located between the outside wall surface of upper end and the internal face of described connecting ring of described leading-out terminal.
6. electrode terminal according to claim 1, is characterized in that, the radial dimension of the upper end of described leading-out terminal is less than the radial dimension of the remainder of described leading-out terminal.
7. electrode terminal according to claim 1, it is characterized in that, the outer peripheral face of described leading-out terminal is provided with flange, described connecting ring is positioned at described flange top, described flange comprises the first annular flat part of being connected with described leading-out terminal, from the annular rake of the downward outward-dipping extension in outer of described the first annular flat part with from the outwards horizontally extending second annular flat part of outer of described annular rake, the periphery of described the first annular flat part along and the periphery of described connecting ring exceed the periphery edge of described connecting ring along concordant or extension.
8. electrode terminal according to claim 1, it is characterized in that, the outer peripheral face of described leading-out terminal is provided with flange, described connecting ring is positioned at flange top, and at least one in the upper surface of wherein said flange and the lower surface of described connecting ring is provided with the boss between the upper surface of described flange and the lower surface of described connecting ring.
9. electrode terminal according to claim 8, is characterized in that, described boss is annular.
10. electrode terminal according to claim 9, is characterized in that, described boss is multiple, and described multiple boss are arranged and being radially spaced apart from each other along described leading-out terminal with one heart.
11. 1 kinds of battery cover board assemblies, is characterized in that, comprising:
Main body cover plate, described main body cover plate is provided with fairlead;
There is the insulating sealer of through hole;
Electrode terminal, described electrode terminal is through described through hole and described fairlead, and described electrode terminal is according to the electrode terminal described in any one in claim 1-10.
12. battery cover board assemblies according to claim 11, is characterized in that, described insulating sealer is ceramic-seal ring.
13. 1 kinds of battery cover board assemblies, is characterized in that, comprising:
Main body cover plate, described main body cover plate is provided with the first fairlead and the second fairlead;
There is first insulating sealer and second insulating sealer with the second through hole of the first through hole;
Positive terminal and negative terminal, described positive terminal is through described the first through hole and described the first fairlead, and described negative terminal passes described the second through hole and described the second fairlead,
Described negative terminal is the electrode terminal described in any one in claim 1-10, and the connecting ring of described negative terminal is made up of identical metal material with described positive terminal.
14. 1 kinds of battery cover board assemblies, is characterized in that, comprising:
Main body cover plate, described main body cover plate is provided with the first fairlead and the second fairlead;
There is first insulating sealer and second insulating sealer with the second through hole of the first through hole;
Positive terminal and negative terminal, described positive terminal is through described the first insulating sealer and described the first fairlead, and described negative terminal passes described the second insulating sealer and described the second fairlead,
Described positive terminal is the electrode terminal described in any one in claim 1-10, and the connecting ring of described positive terminal is made up of identical metal material with described negative terminal.
15. 1 kinds of batteries, is characterized in that, comprise the battery cover board assembly as described in any one in claim 11-14.
16. 1 kinds of battery pack, is characterized in that, comprising:
Multiple batteries, described battery has positive terminal and negative terminal, and wherein said negative terminal is according to the electrode terminal described in any one in claim 1-10;
Power brace, described power brace is electrically connected adjacent described battery, and described power brace, described negative pole connecting ring and described positive terminal are made up of identical metal material.
17. 1 kinds of battery pack, is characterized in that, comprising:
Multiple batteries, described battery has positive terminal and negative terminal, and wherein said positive terminal is according to the electrode terminal described in any one in claim 1-10;
Power brace, described power brace is electrically connected adjacent described battery, and connecting ring and the described negative terminal of described power brace, described positive terminal are made up of identical metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892045.5U CN204011549U (en) | 2013-12-31 | 2013-12-31 | Electrode terminal, the battery cover board assembly with it, battery and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892045.5U CN204011549U (en) | 2013-12-31 | 2013-12-31 | Electrode terminal, the battery cover board assembly with it, battery and battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN204011549U true CN204011549U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892045.5U Expired - Lifetime CN204011549U (en) | 2013-12-31 | 2013-12-31 | Electrode terminal, the battery cover board assembly with it, battery and battery pack |
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| Country | Link |
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| CN (1) | CN204011549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453541A (en) * | 2021-12-29 | 2022-05-10 | 广东顺科电气制造有限公司 | Cold heading device and cold heading process for forming battery leading-out terminal |
-
2013
- 2013-12-31 CN CN201320892045.5U patent/CN204011549U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453541A (en) * | 2021-12-29 | 2022-05-10 | 广东顺科电气制造有限公司 | Cold heading device and cold heading process for forming battery leading-out terminal |
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