CN104377338B

CN104377338B - Electrode terminal, there is its battery cover board assembly, battery and battery pack

Info

Publication number: CN104377338B
Application number: CN201310753850.4A
Authority: CN
Inventors: 何昱臣; 李银玲; 吴强; 汪鲁建; 刘斯源
Original assignee: 比亚迪股份有限公司
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2016-09-07
Also published as: CN104377338A

Abstract

The invention discloses a kind of electrode terminal, have its battery cover board assembly, battery and battery pack, wherein electrode terminal includes: leading-out terminal；With connection ring, connect ring set and be located on the upper end of leading-out terminal and weld with leading-out terminal, connect ring and leading-out terminal is made up of different metal materials.Electrode terminal according to the present invention, the ring that connects being set on leading-out terminal is connected the transition piece of sheet welding as leading-out terminal with power, is connected sheet respectively with leading-out terminal, power and welds by connecting ring and be connected the connection of sheet with power realizing leading-out terminal, avoid the leading-out terminal of different materials to be connected sheet with power and directly weld, so that weld is more firm.Additionally, connect the setting of ring, increase the width of electrode terminal radial direction, increase bonding area, thus, improve the weld strength of the battery cover board assembly applying this electrode terminal, also improve battery and the sealing of battery pack, vibration resistance and security.

Description

Electrode terminal, there is its battery cover board assembly, battery and battery pack

Technical field

The present invention relates to cell art, specifically, particularly to a kind of electrode terminal, have its battery cover board assembly, Battery and battery pack.

Background technology

Electrokinetic cell electric automobile is the vitals of electric automobile, and electric automobile performance is existed material impact.Battery pack be by Multiple cells composition in series or in parallel with each other, the performance to battery pack of the quality of connection between cell has the biggest shadow Ring.

Summary of the invention

The application is to make problems with true discovery and understanding based on inventor: connecting cell with connector Time, the performance of battery pack is had a great impact by the bonding strength between electrode terminal and the power connections of cell, due to Positive terminal and the negative terminal of cell are made up of different metal, and such as, the positive terminal of battery is commonly made from aluminium, electricity The negative terminal in pond is generally made of copper, and generally uses blast weldering, stored energy welding and friction welding (FW) to carry out copper aluminium welding, due to copper aluminium Welding fusing point is different, easily occurs that not prison welding is leaned on, produced that welding gap, weld strength be low, salt spray resistance when copper aluminium is connected with each other Property poor, contact resistance is big, affect the performance of battery pack, and, the cost height of above-mentioned welding method, complex process, application is subject to To limiting.Accordingly, there exist the demand of improvement.

It is contemplated that solve one of above-mentioned technical problem the most to a certain extent.

To this end, it is an object of the present invention to propose a kind of to be connected firmly, stability is high and security performance is good electrode terminal.

Further object is that a kind of battery cover board assembly with above-mentioned electrode terminal of proposition.

Another object of the present invention is to propose a kind of battery with above-mentioned battery cover board assembly.

A further object of the present invention is to propose two kinds of battery pack with above-mentioned battery.

Embodiment according to a first aspect of the present invention provides a kind of electrode terminal, including: leading-out terminal；With connect ring, described Connect ring set to be located on the upper end of described leading-out terminal and weld with described leading-out terminal, described connection ring and described leading-out terminal It is made up of different metal materials.

Electrode terminal according to embodiments of the present invention, the connection ring being set on leading-out terminal is connected sheet as leading-out terminal with power The transition piece of welding, is connected sheet respectively and welds by connecting ring and be connected sheet with power realizing leading-out terminal with leading-out terminal, power Connect, it is to avoid the leading-out terminal of different materials is connected sheet with power and directly welds, so that weld is more firm.Additionally, Connect the setting of ring, increase the width of electrode terminal radial direction, increase bonding area, thus, improve this electricity of application The weld strength of the battery cover board assembly of extreme son, also improves battery and the sealing of battery pack, vibration resistance and security.

Embodiment according to a second aspect of the present invention provides a kind of battery cover board assembly, including: main body cover plate, described 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 draws Portalling, described electrode terminal is electrode terminal as above.

Battery cover board assembly according to embodiments of the present invention, the connection ring being set on leading-out terminal is as leading-out terminal with power even The transition piece of contact pin welding, is connected connections ring sheet respectively and welds and be connected with power realizing leading-out terminal with leading-out terminal, power The connection of sheet, it is to avoid the leading-out terminal of different materials is connected sheet with power and directly welds, so that weld is more firm.This Outward, connect the setting of ring, increase the width of electrode terminal radial direction, increase bonding area, thus, improve application The weld strength of the battery cover board assembly of this electrode terminal, also improves battery and the sealing of battery pack, vibration resistance and safety Property.

Embodiment according to a third aspect of the present invention provides a kind of battery cover board assembly, including: main body cover plate, described body cover Plate is provided with the first fairlead and the second fairlead；There is the first insulating sealer of the first through hole and there is the second of the second through hole Insulating sealer；Positive terminal and negative terminal, described positive terminal passes described first through hole and described first fairlead, institute Stating negative terminal and pass described second through hole and described second fairlead, described negative terminal is electrode terminal as above, and The ring that connects of described negative terminal is made up of identical metal material with described positive terminal.

Embodiment according to a fourth aspect of the present invention provides a kind of battery cover board assembly, including: main body cover plate, described body cover Plate is provided with the first fairlead and the second fairlead；There is the first insulating sealer of the first through hole and there is the second of the second through hole Insulating sealer；Positive terminal and negative terminal, described positive terminal is drawn through described first insulating sealer and described first Hole, described negative terminal passes described second insulating sealer and described second fairlead, and described positive terminal is as above Electrode terminal, and described positive terminal connect ring be made up of identical metal material with described negative terminal.

Embodiment according to a fifth aspect of the present invention provides a kind of battery, including: battery cover board assembly as above.

Battery according to embodiments of the present invention, the connection ring being set on leading-out terminal is connected sheet as leading-out terminal with power and welds Transition piece, is connected sheet respectively with leading-out terminal, power and welds by connecting ring and be connected the connection of sheet with power realizing leading-out terminal, Avoid the leading-out terminal of different materials to be connected sheet with power and directly weld, so that weld is more firm.Additionally, connection ring Setting, increase the width of electrode terminal radial direction, increase bonding area, thus, improve application this electrode terminal The weld strength of battery cover board assembly, also improve battery and the sealing of battery pack, vibration resistance and security.

Embodiment according to a sixth aspect of the present invention provides a kind of battery pack, including: multiple batteries, described battery has positive pole Terminal and negative terminal, wherein said negative terminal is electrode terminal as above；Power connects sheet, and described power connects sheet Electrically connecting adjacent described battery, described power connects sheet, described negative pole connects ring with described positive terminal by identical metal material Material is made.

Battery pack according to embodiments of the present invention, the connection ring being set on leading-out terminal is connected sheet as leading-out terminal with power and welds The transition piece connect, is connected sheet respectively and welds by connecting ring and be connected the company of sheet with power realizing leading-out terminal with leading-out terminal, power Connect, it is to avoid the leading-out terminal of different materials is connected sheet with power and directly welds, so that weld is more firm.Additionally, even The setting of T-Ring, increases the width of electrode terminal radial direction, increases bonding area, thus, improves this electrode of application The weld strength of the battery cover board assembly of terminal, also improves battery and the sealing of battery pack, vibration resistance and security.

Embodiment according to a seventh aspect of the present invention provides a kind of battery pack, including: multiple batteries, described battery has positive pole Terminal and negative terminal, wherein said positive terminal is electrode terminal as above；Power connects sheet, and described power connects sheet Electrically connect adjacent described battery, described power connect sheet, described positive terminal connect ring with described negative terminal by identical Metal material is made.

The additional aspect of the present invention and advantage will part be given in the following description, and part will become bright from the following description Aobvious, or recognized by the practice of the present invention.

Accompanying drawing explanation

Fig. 1 is the sectional view of electrode terminal according to an embodiment of the invention；

Fig. 2 is the sectional view connecting ring of electrode terminal according to an embodiment of the invention；

Fig. 3 is the sectional view of the leading-out terminal of electrode terminal according to an embodiment of the invention；

Fig. 4 is the sectional view of electrode terminal according to an embodiment of the invention, and wherein leading-out terminal is that screw thread connects with being connected ring Connect；

Fig. 5 is the sectional view of battery cover board assembly according to an embodiment of the invention；

Fig. 6 is the sectional view of battery cover board assembly according to another embodiment of the invention, is wherein configured with in main body cover plate One fairlead and the second fairlead；

Fig. 7 is the partial structurtes schematic diagram in Fig. 6；

Fig. 8 is the sectional view of the main body cover plate of battery cover board assembly according to still a further embodiment, wherein main body cover plate On be configured with the first fairlead and the second fairlead；

Fig. 9 is the partial structurtes schematic diagram in Fig. 8；

Figure 10 is the profile of the cover plate of battery cover board assembly according to an embodiment of the invention；

Figure 11 is the partial structurtes schematic diagram in Fig. 8；

Figure 12 is the structural representation of battery pack according to an embodiment of the invention.

Reference

Electrode terminal 100；

Leading-out terminal 10；Upper end 11；Flange 12；First annular flat part 121；Annular rake 122；Second annular flat Straight portion 123；Leading-out terminal lower end 13；

Connect ring 20；Centre bore 21；

Battery cover board assembly 200 (200a, 200a ')；

Insulating sealer 60；First insulating sealer 60a (60a ')；Second insulating sealer 60b (60b ')；Through hole 61； First through hole 61a (61a ')；Second through hole 61b (61b ')；Upper end hole section 611；Interstitial hole section 612；Lower stomidium section 613； Annular groove 6131；

First annular video disc 70a (70a ')；Second ring disk 70b (70b ')；Upper flange 71a '；Lower flange 72a '；

Main body cover plate 80 (80a, 80a ')；Fairlead 81；First fairlead 81a (81a ')；Second fairlead 81b (81b ')； Upper fairlead section 811a '；Lower fairlead section 812a '；

Power connects sheet 90；Installing hole 91；

Battery pack 300.

Detailed description of the invention

Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most identical or Similar label represents same or similar element or has the element of same or like function.Describe below with reference to accompanying drawing Embodiment is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.

In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be only for Be easy to describe the present invention and simplifying describe rather than instruction or the device of hint indication or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or Person implies the quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more, Unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc. Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be machinery Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two elements Internal connection or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings Condition understands above-mentioned term concrete meaning in the present invention.

In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can To include that the first and second features directly contact, it is also possible to include the first and second features be not directly contact but by them it Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " include that first is special Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature is Two features " under ", " lower section " and " below " include that fisrt feature immediately below second feature and obliquely downward, or is merely representative of Fisrt feature level height is less than second feature.

Material describes electrode terminal 100 according to embodiments of the present invention in detail with reference to the accompanying drawings.

As Figure 1-Figure 4, electrode terminal 100 according to embodiments of the present invention includes: leading-out terminal 10 and connection ring 20.

Specifically, connect ring 20 and be set on the upper end 11 of leading-out terminal 10, and weld with leading-out terminal 10.Change speech It, connect and be configured with centre bore 21 on ring 20, connects ring 20 and is welded with leading-out terminal 10 by centre bore 21.Connect ring 20 and leading-out terminal 10 be made up of different metal materials.

Electrode terminal 100 according to embodiments of the present invention, the connection ring 20 being set on leading-out terminal 10 is as leading-out terminal 10 It is connected the transition piece of sheet welding with power, ring 20 will be connected and be connected sheet welding respectively with leading-out terminal 10, power to realize drawing Terminal 10 is connected the connection of sheet 90 with power, it is to avoid the leading-out terminal 10 of different materials is connected sheet 90 and directly welds with power, So that weld is more firm.Additionally, connect the setting of ring 20, increase the width of electrode terminal 100 radial direction, Increase bonding area, thus, improve the weld strength of the battery cover board assembly applying this electrode terminal 100, also improve Battery and the sealing of battery pack, vibration resistance and security.

It is understood that do not do specifically limited for the upper end 11 of leading-out terminal 10 and the connected mode of connection ring 20, As long as meet leading-out terminal 10 be connected ring 20 connection reliability.Such as, according to one embodiment of present invention, even T-Ring 20 can use with the upper end 11 of leading-out terminal 10 threadeds.Thus, it is possible to contribute to strengthening leading-out terminal 10 With the bonding strength being connected ring 20, thus improve leading-out terminal 10 be connected ring 20 weld strength.

It should be noted that the welding manner of leading-out terminal 10 and connection ring 20 can select as the case may be, in order to Convenient welding, improves welding efficiency, prevents leading-out terminal 10 and connection ring 20 from deforming upon when welding, can use soldering Welding.

It is made up of different metal in view of connection ring 20 and leading-out terminal 10, for improving leading-out terminal 10 further and connecting ring (such as, weld strength between 20, can carry out surface process on leading-out terminal 10 and with connecting the part that contacts of ring 20 Plating, spraying, anodic oxidation or airless injection etc.), the problem solid in order to solve not prison welding between different metal materials.

As it is shown in figure 1, according to one embodiment of present invention, in order to make the profile neat appearance of electrode terminal 100, connect ring The upper surface of 20 can be concordant with the upper surface of leading-out terminal 10.Simultaneously, it is also possible to save raw material, production cost is reduced.

It is understood that the cross sectional shape of the upper end 11 of the centre bore 21 and leading-out terminal 10 that connect ring 20 is not spy Different restriction, such as, in one embodiment of the invention, connects centre bore 21 and the upper end of leading-out terminal 10 of ring 20 11 have noncircular cross section.The i.e. upper end 11 of leading-out terminal 10 is formed as non-cylindrical, correspondingly, connects in ring 20 The shape of central hole 21 is again formed as non-circular, with the shape adaptation with the upper end 11 of leading-out terminal 10.

It addition, according to one embodiment of present invention, the radial dimension of the upper end 11 of leading-out terminal 10 is less than leading-out terminal 10 The radial dimension of remainder.The i.e. radial dimension of the upper end 11 of leading-out terminal 10 is minimum, convex on leading-out terminal 10 The radial dimension of edge 12 is bigger.Now, when sheathed connection ring 20 on the upper end 11 of leading-out terminal 10, connect ring 20 Size can be less, such that it is able to save material usage.Meanwhile, the upper end 11 of leading-out terminal 10 less be also easier to close Envelope battery.

As it is shown on figure 3, according to one embodiment of present invention, the outer peripheral face of leading-out terminal 10 is provided with flange 12, connects ring 20 are positioned at above flange 12.Flange 12 includes: first annular flat part 121, annular rake 122 and the second annular flat Straight portion 123.

Specifically, first annular flat part 121 is connected with leading-out terminal 10.Annular rake 122 is by first annular straight The outer in portion 121 extended configuration downward, outward-dipping becomes.Second annular flat part 123 is by the annular outside level of rake 122 Extended configuration becomes.

Additionally, for the contact area increasing leading-out terminal 10 further be connected ring between 20, according to a reality of the present invention Execute example, the periphery of first annular flat part 121 along with the periphery being connected ring 20 along concordant or extend beyond outward and connect outside ring 20 All edges.In other words, the radial dimension on the edge, periphery of first annular flat part 121 is more than or equal to the footpath connecting edge, ring 20 periphery To size.

According to one embodiment of present invention, the lower surface connecting ring 20 is welded with the upper surface of first annular flat part 121. It should be noted that the welding manner of leading-out terminal 10 and connection ring 20 can select, for convenience as the case may be Welding, improves welding efficiency, prevents leading-out terminal 10 and connection ring 20 from deforming upon when welding, can use Welding.

As Figure 1 and Figure 4, according to one embodiment of present invention, leading-out terminal 10 can have circular cross section, connects Ring 20 can be annular.It is understood that leading-out terminal 10 is not limited to this with the cross sectional shape being connected ring 20, only Want to disclosure satisfy that after welding both it use intensity of electrode terminal 100.It addition, outside first annular flat part 121 Footpath is more than the external diameter connecting ring 20.Thus, it is possible to increase the bonding area connected between ring 20 and first annular flat part 121, Thus increase the weld strength connected between ring 20 and first annular flat part 121.

As it is shown on figure 3, for the manufacturing procedure simplifying electrode terminal 100, reduce the production cost of electrode terminal 100, according to One embodiment of the present of invention, flange 12 may be integrally formed with leading-out terminal 10.In some embodiments of the invention, Arc transition between lower surface and the outer peripheral face of leading-out terminal 10 of one annular flat part 121.

Additionally, the material of preparing connecting ring 20 and leading-out terminal 10 can be the electrode material that those of ordinary skill in the art commonly use, In some embodiments of the invention, when connecting ring 20 and being aluminium ring, leading-out terminal 10 is copper tip.It is to say, when even When T-Ring 20 is prepared from for aluminum material, leading-out terminal 10 is prepared from for copper material.Concrete at other of the present invention In embodiment, when connecting ring 20 and being copper ring, leading-out terminal 10 is aluminium terminal.It is to say, be copper when connecting ring 20 When material is prepared from, leading-out terminal 10 is prepared from for aluminum material.

Battery cover board assembly 200 according to embodiments of the present invention is specifically described below in conjunction with the accompanying drawings with embodiment.

Embodiment 1

As it is shown in figure 5, in an embodiment of the present invention, battery cover board assembly 200 includes: main body cover plate 80, insulating sealer 60 and according to the electrode terminal 100 described in the above embodiment of the present invention.

Specifically, main body cover plate 80 is provided with fairlead 81, and insulating sealer 60 has through hole 61, electrode terminal 100 It is arranged in main body cover plate 80 through through hole 61 and fairlead 81.

Battery cover board assembly 200 according to embodiments of the present invention can apply to positive pole and negative pole is respectively provided on the battery at two ends, Battery cover board assembly 200 is respectively provided at the two ends of battery and seals described battery, electrode terminal according to the above embodiment of the present invention 100 can be positive terminal and/or the negative terminal of battery, and the electrode terminal 100 being positioned at two ends is each passed through main body cover plate 80 And be arranged in main body cover plate 80.Owing to electrode terminal 100 according to the above embodiment of the present invention has above-mentioned technique effect, Therefore, battery cover board assembly 200 according to embodiments of the present invention also has corresponding technique effect.

Battery cover board assembly 200 i.e.: according to embodiments of the present invention, the connection ring 20 being set on leading-out terminal 10 is as drawing Go out terminal 10 and be connected the transition piece of sheet 90 welding with power, ring 20 will be connected and be connected sheet 90 with leading-out terminal 10, power respectively Weld and is connected the connection of sheet 90 with power realizing leading-out terminal 10, it is to avoid the leading-out terminal 10 of different materials and power company Contact pin 90 is directly welded, so that weld is more firm.Additionally, connect the setting of ring 20, increase electrode terminal 100 The width of radial direction, increases bonding area, thus, improves the weldering of the battery cover board assembly applying this electrode terminal 100 Connect intensity, also improve battery and the sealing of battery pack, vibration resistance and security.

Embodiment 2

As shown in Figure 6, Figure 7, in the detailed description of the invention of the present invention, battery cover board assembly 200a includes: main body cover plate 80a, the first insulating sealer 60a and the second insulating sealer 60b, positive terminal and negative terminal.

Specifically, main body cover plate 80a is provided with the first fairlead 81a and the second fairlead 81b, the first insulating sealer 60a There is the first through hole 61a, the second insulating sealer 60b there is the second through hole 61b, positive terminal through the first through hole 61a and First fairlead 81a, negative terminal pass the second through hole 61b and the second fairlead 81b, wherein, according to negative terminal on State the electrode terminal 100 described in some embodiments, and the connection ring 20 of negative terminal and positive terminal are by identical metal material system Becoming, negative terminal the most described is the copper tip according to the above embodiment of the present invention, connects ring 20 then For the loop configuration identical with positive terminal material.

Battery cover board assembly 200a according to embodiments of the present invention can apply to positive pole and negative pole 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, and negative terminal can be according to the above-mentioned reality of the present invention Executing the electrode terminal 100 become with copper of example, positive terminal can be the terminal commonly used according to those of ordinary skill in the art, even T-Ring 20 is then the loop configuration identical with positive terminal material.

Thus, positive terminal and negative terminal are each passed through the first insulating sealer 60a and the second insulating sealer 60b and seal peace Being contained in the first fairlead 81a and the second fairlead 81b of main body cover plate 80a, battery cover board assembly 200a cooperation is arranged on The end of battery, thus by battery complete seal.Owing to electrode terminal 100 according to embodiments of the present invention has above-mentioned technology effect Really, battery cover board assembly 200a the most according to embodiments of the present invention also has corresponding technique effect.

Battery cover board assembly 200a i.e.: according to embodiments of the present invention, the connection ring 20 being set on leading-out terminal 10 is as drawing Go out terminal 10 and be connected the transition piece of sheet 90 welding with power, ring 20 will be connected and be connected sheet 90 with leading-out terminal 10, power respectively Weld and is connected the connection of sheet 90 with power realizing leading-out terminal 10, it is to avoid the leading-out terminal 10 of different materials and power company Contact pin 90 is directly welded, so that weld is more firm.Additionally, connect the setting of ring 20, increase electrode terminal 100 The width of radial direction, increases bonding area, thus, improves the weldering of the battery cover board assembly applying this electrode terminal 100 Connect intensity, also improve battery and the sealing of battery pack, vibration resistance and security.

As shown in Figure 6, Figure 7, in order to ensure the sealing of electrode terminal 100 and the assembling of main body cover plate 80a, alternatively, root According to one embodiment of the present of invention, this battery cover board assembly 200a also includes: be arranged on the first ring in the first fairlead 81a Shape video disc 70a and the second ring disk 70b being arranged in the second fairlead 81b, the first insulating sealer 60a are supported on the On one ring disk 70a, the second insulating sealer 60b is supported on the second ring disk 70b, positive terminal and negative terminal It is each passed through the first annular video disc 70a being arranged in the first fairlead 81a and the second ring being arranged in the second fairlead 81b Shape video disc 70b is sealingly mounted in main body cover plate 80a.

Specifically, the outer peripheral face of negative terminal is provided with flange 12, and flange 12 includes first annular with what leading-out terminal 10 was connected Flat part 121, from the outer of first annular flat part 121 downwardly and outwardly tilt extend annular rake 122 and incline from annular The second annular flat part 123 that tiltedly portion 122 is the most horizontal-extending, the periphery of first annular flat part 121 along be connected ring 20 Periphery along concordant or extend outwardly beyond connect ring 20 edge, periphery, wherein the second insulating sealer 60b is clamped in the second ring Weld between shape video disc 70b and second annular flat part 123 and with the second annular flat part 123.Thus, by exhausted second Second ring disk 70b is set between edge seal 60b and main body cover plate 80a, electrode terminal 100 can be effectively ensured with main The sealing of body cover plate 80a.

Embodiment 3

As shown in Figure 8, Figure 9, in the detailed description of the invention of the present invention, battery cover board assembly 200a ' including: main body cover plate 80a ', the first insulating sealer 60a ' and the second insulating sealer 60b ', positive terminal and negative terminal.

Specifically, main body cover plate 80a ' it is provided with the first fairlead 81a ' and the second fairlead 81b ' (such as Fig. 6 and Fig. 7 Shown in), the first insulating sealer 60a ' has the first through hole 61a ', the second insulating sealer 60b ' and has the second through hole 61b ', positive terminal pass the first through hole 61a ' and the first fairlead 81a ', negative terminal pass the second through hole 61b ' and Second fairlead 81b ', wherein, positive terminal is according to the electrode terminal 100 described in more above-mentioned embodiments, and positive terminal The ring 20 that connects of son is made up of identical metal material with negative terminal, and positive terminal the most described is Aluminium terminal according to the above embodiment of the present invention, connecting ring 20 is then the loop configuration identical with negative terminal material.

Battery cover board assembly 200a ' according to embodiments of the present invention can apply to positive pole and negative pole 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, and positive terminal can be according to the above-mentioned reality of the present invention Executing the electrode terminal 100 become with copper of example, negative terminal can be the terminal commonly used according to those of ordinary skill in the art, even T-Ring 20 is then the loop configuration identical with negative terminal material.

Thus, to be each passed through the first insulating sealer 60a ' and the second insulating sealer 60b ' close for positive terminal and negative terminal Envelope is arranged on main body cover plate 80a ' the first fairlead 81a ' and the second fairlead 81b ' interior, battery cover board assembly 200a ' Coordinate the end being arranged on battery, thus by battery complete seal.Owing to electrode terminal 100 according to embodiments of the present invention has Above-mentioned technique effect, battery cover board assembly 200a ' the most according to embodiments of the present invention also has corresponding technique effect.

Battery cover board assembly 200a ' i.e.: according to embodiments of the present invention, connection ring 20 conduct being set on leading-out terminal 10 Leading-out terminal 10 is connected the transition piece of sheet 90 welding with power, will connect ring 20 and be connected sheet with leading-out terminal 10, power respectively 90 welding are connected the connection of sheet 90 realizing leading-out terminal 10 with power, it is to avoid the leading-out terminal 10 of different materials and power Connect sheet 90 directly to weld, so that weld is more firm.Additionally, connect the setting of ring 20, increase electrode terminal 100 The width of radial direction, increases bonding area, thus, improves the weldering of the battery cover board assembly applying this electrode terminal 100 Connect intensity, also improve battery and the sealing of battery pack, vibration resistance and security.

As shown in Figure 8, Figure 9, in order to ensure electrode terminal 100 and main body cover plate 80a ' sealing assembled, alternatively, According to one embodiment of present invention, this battery cover board assembly 200a ' also includes: be arranged in the first fairlead 81a ' One ring disk 70a ' and the second ring disk 70b ' being arranged in the second fairlead 81b ', the first insulating sealer 60a ' is supported on first annular video disc 70a ', and the second insulating sealer 60b ' is supported on the second ring disk 70b ', Positive terminal and negative terminal are each passed through the first annular video disc 70a ' being arranged in the first fairlead 81a ' and are arranged on The second ring disk 70b ' in two fairlead 81b ' is sealingly mounted at main body cover plate 80a ' on.

Specifically, the outer peripheral face of positive terminal is provided with flange 12, and flange 12 includes first annular with what leading-out terminal 10 was connected Flat part 121, from the outer of first annular flat part 121 downwardly and outwardly tilt extend annular rake 122 and incline from annular The second annular flat part 123 that tiltedly portion 122 is the most horizontal-extending, the periphery of first annular flat part 121 along be connected ring 20 Periphery along concordant or extend outwardly beyond connect ring 20 edge, periphery, wherein the first insulating sealer 60a ' is clamped in the first ring Weld between shape video disc 70a ' with the second annular flat part 123 and with the second annular flat part 123.

In other words, the two ends of the first insulating sealer 60a ' are annular with the second of first annular video disc 70a ' and flange 12 respectively Flat part 123 welds together, and first annular video disc 70a is positioned at the first insulating sealer 60a ' and main body cover plate 80a ' it Between, the lower surface of first annular video disc 70a ' and main body cover plate 80a ' the first fairlead 81a ' contact, first annular video disc Upper surface and the first insulating sealer 60a ' of 70a ' weld together.Thus, by the first insulating sealer 60a ' with Main body cover plate 80a ' between first annular video disc 70a ' is set, positive terminal and the first insulating sealer 60a ', first annular Video disc 70a ' and main body cover plate 80a ' being installed togather forms the system closed, and positive terminal and master can be effectively ensured The sealing of body cover plate 80a '.

Further, in certain specific embodiments of the invention, the first insulating sealer 60a ' and the second insulating sealer 60b ' can be all ceramic-seal ring.Compared with rubber seal ring, ceramic-seal ring is used can effectively to extend battery cover board The service life of assembly 200a '.Wherein, ceramic-seal ring can be the ceramic-seal rings such as Al2O3, AlN, BN or BeO.Separately Outward, it is contemplated that ceramic-seal ring to weld phase with first annular video disc 70a ', the second ring disk 70b ' and flange 12 respectively Even, and ceramic-seal ring is directly welded more difficulty, therefore, it can ceramic-seal ring is further processed, to subtract The difficulty of few welding.Such as, metalized can be carried out on the surface of ceramic-seal ring, to reach the purpose easily welded.Tool Body ground, can on the upper surface of ceramic-seal ring or lower surface nickel coating, zinc coat or sputtered aluminum layer etc..

As shown in figure 11, according to one embodiment of present invention, each in the first through hole 61a ' and the second through hole 61b ' Including upper hole section 611, interstitial hole section 612 and lower opening section 613, the radial dimension of upper hole section 611 and lower opening section 613 is all higher than The radial dimension of interstitial hole section 612.

Specifically, as a example by the first insulating sealer 60a ', the middle part of the first insulating sealer 60a ' is provided with up/down perforation First through hole 61a ', the upper surface of the first insulating sealer 60a ' is provided with hole section 611, the first insulating sealer 60a ' Lower surface be provided with lower opening section 613, and the radial dimension of upper hole section 611 and lower opening section 613 is all higher than interstitial hole section 612 Radial dimension, 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 first Insulating sealer 60a ' can be set on positive terminal.

As shown in figure 11, further, the roof of lower opening section 613 is provided with annular groove 6131.Thus, first annular dish During the lower surface contact weld of the upper surface of sheet 70a ' and the first insulating sealer 60a ', need to avoid lower opening section 613 and ring Connected in star 6131 so that the distance between first annular video disc 70a ' and positive terminal strengthens, and makes the first insulating sealer 60a ' Creep age distance increase, breakdown voltage resistant ability improve.Meanwhile, the setting of annular groove 6131 can also be avoided when welding Solder trickling is trickled everywhere and is difficult to the problem cleaned.

As Figure 8-Figure 10, according to one embodiment of present invention, first annular video disc 70a ' and the second ring disk 70b ' In the upper end of each be provided with upper flange 71a ' and lower end is provided with lower flange 72a '；First fairlead 81a ' and second draws Each in the 81b ' of hole includes fairlead section 811a ' and lower fairlead section 812a '.Upper fairlead section 811a ' footpath To size more than lower fairlead section 812a ' radial dimension.

The lower end of first annular video disc 70a ' and the lower flange 72a ' of first annular video disc 70a ' are supported on the first fairlead Upper fairlead section 811a of 81a ' ' diapire on and with upper fairlead section 811a of the first fairlead 81a ' ' inwall weldering Connecing, the lower end of the second ring disk 70b ' and the lower flange 72a ' of the second ring disk 70b ' are supported on the second fairlead Upper fairlead section 811a of 81b ' ' diapire on and with upper fairlead section 811a of the second fairlead 81b ' ' inwall weldering Connect.

It is to say, as a example by first annular video disc 70a ', first annular video disc 70a ' is located at main body cover plate 80a ' first Upper fairlead section 811a of fairlead 81a ' ' in, the top and bottom of first annular video disc 70a ' are respectively equipped with upper flange 71a ' and lower flange 72a ', upper flange 71a ' and lower flange 72a ' respectively with the first insulating sealer 60a ' and upper extraction Hole section 811a ' diapire contact.Thus so that first annular video disc 70a ' and the first insulating sealer 60a ' and body cover The contact area of plate 80a ' increases, and welds the most firm.

Other of battery cover board assembly 200a ' according to embodiments of the present invention are constituted for the person of ordinary skill of the art It is all known, is not described in detail at this.

Battery according to embodiments of the present invention includes above-mentioned battery cover board assembly 200 (battery cover board assembly 200a, battery cover board Assembly 200a ').Battery cover board assembly 200 (battery cover board assembly 200a, battery cover board assembly 200a ') is located at battery End is with sealed cell.Due to battery cover board assembly 200 (battery cover board assembly 200a, battery cover according to embodiments of the present invention Board component 200a ') there is above-mentioned technique effect, therefore, battery according to embodiments of the present invention also has corresponding technique effect.

Battery i.e.: according to embodiments of the present invention, the connection ring 20 being set on leading-out terminal 10 as leading-out terminal 10 with Power connects the transition piece of sheet 90 welding, connection ring 20 is connected with leading-out terminal 10, power sheet 90 respectively and welds to realize Leading-out terminal 10 is connected the connection of sheet 90 with power, it is to avoid it is direct that the leading-out terminal 10 of different materials is connected sheet 90 with power Welding, so that weld is more firm.Additionally, connect the setting of ring 20, increase electrode terminal 100 radial direction Width, increases bonding area, thus, improves the weld strength of the battery cover board assembly applying this electrode terminal 100, also Improve battery and the sealing of battery pack, vibration resistance and security.

As shown in figure 12, battery pack 300 according to embodiments of the present invention includes that multiple battery as above and power connect sheet 90.Wherein, battery has positive terminal and negative terminal, and negative terminal can be according to the copper tip described in above-described embodiment, Power connects sheet 90 and electrically connects adjacent battery, power connect sheet 90, negative terminal connection ring 20 with positive terminal by identical Metal material make.

In other words, negative terminal described in embodiments of the present invention is the copper tip according to the above embodiment of the present invention, positive terminal Son can use the electrode terminal that those of ordinary skill in the art commonly use, and connection ring 20 and power on negative terminal connect sheet 90 It is then the loop configuration identical with positive terminal material.

Battery pack 300 according to embodiments of the present invention, the connection ring 20 being set on leading-out terminal 10 is as leading-out terminal 10 It is connected the transition piece of sheet 90 welding with power, connection ring 20 is connected sheet 90 with leading-out terminal 10, power respectively and welds with reality Existing leading-out terminal 10 is connected the connection of sheet 90 with power, it is to avoid it is straight that the leading-out terminal 10 of different materials is connected sheet 90 with power Connect welding, so that weld is more firm.Additionally, connect the setting of ring 20, increase electrode terminal 100 radial direction Width, increase bonding area, thus, improve the weld strength of battery cover board assembly applying this electrode terminal 100, Also improve battery and the sealing of battery pack, vibration resistance and security.

As shown in figure 12, the battery pack 300 in another embodiment according to embodiments of the present invention includes as mentioned above Multiple batteries and power connect sheet 90.Wherein, battery has positive terminal and negative terminal, positive terminal can according on Stating the aluminium terminal in embodiment, power connects sheet 90 and electrically connects adjacent battery, and power connects sheet 90, the connection of positive terminal Ring 20 is made up of identical metal material with negative terminal.

It is to say, positive terminal described in embodiments of the present invention is the aluminium terminal according to the above embodiment of the present invention, negative pole Terminal can use the electrode terminal that those of ordinary skill in the art commonly use, and connection ring 20 and power on positive terminal connect sheet 90 is the loop configuration identical with negative terminal material.

Battery pack according to the above embodiment of the present invention can be that multiple battery is connected in parallel mutually, it is also possible to is connected in series with each other, Can also connect and Hybrid connections in parallel, be the aluminium terminal according to the above embodiment of the present invention with the positive terminal of battery, bear below Extreme son is for according to the battery pack specifically described as a example by the copper tip of the above embodiment of the present invention according to embodiments of the present invention.

When being connected in series between multiple batteries, power connect sheet 90 respectively with the positive terminal on two batteries being disposed adjacent Be connected with negative terminal, i.e. one end of power connection sheet 90 is connected with the positive terminal of a battery, then the other end and adjacent electricity The negative terminal in pond is connected.Now, positive terminal is aluminium terminal, and negative terminal is copper tip, on negative terminal, i.e. copper tip Being arranged with the connection ring 20 of aluminium matter, it is aluminium flake that power connects sheet 90.

Specifically, power connects sheet 90 and is provided with two installing holes 91 arranged spaced apart, the negative terminal of a battery, i.e. Copper tip is provided with the connection ring 20 of aluminium matter, and the connection ring 20 of aluminium matter is weldingly connected with copper tip, and copper tip is according to the present invention Electrode terminal 100 in more above-mentioned embodiments, has corresponding technique effect, and the connection ring 20 of aluminium matter can be steady with copper tip Fixed welding.

The power of aluminium matter connects an installing hole 91 of sheet 90 and is set on connection ring 20 and is weldingly connected with it, and power connects Another installing hole 91 of sheet 90 is set in the positive terminal of adjacent cell, is i.e. weldingly connected on aluminium terminal and with it, aluminium matter The connection that connection ring 20 is connected between power connection sheet 90 and the aluminium terminal of sheet 90 and aluminium matter with the power of aluminium matter is identical Welding between metal material, effectively prevent the connected connection caused of copper aluminium welding and is difficult to and unsteady problem, welding side Just and welding effect is good, vibration resistance is higher and security improves, and the performance of battery pack is improved, and the price of aluminium is relative The cheapest, preparation cost can be reduced to a certain extent.

When being connected in parallel between multiple batteries, power connect sheet 90 respectively with the positive terminal on two batteries being disposed adjacent Or negative terminal is connected, i.e. one end of power connection sheet 90 is connected with the positive terminal of a battery, then power connects sheet 90 The other end is connected with the negative terminal in adjacent cell.Now, positive terminal is aluminium terminal, and negative terminal is copper tip, copper end Being arranged with the connection ring 20 of aluminium matter on son, it is aluminium flake that power connects sheet 90.

Specifically, power connects sheet 90 and is provided with two installing holes 91 arranged spaced apart, bearing of two batteries being disposed adjacent Extreme son, is i.e. respectively equipped with the connection ring 20 of aluminium matter on copper tip, the connection ring 20 of aluminium matter is weldingly connected with copper tip, copper end Son is according to the electrode terminal 100 in the more above-mentioned embodiments of the present invention, has corresponding technique effect, the connection ring 20 of aluminium matter Can stably weld with copper tip.Two positive terminals being disposed adjacent, i.e. then without arranging connection ring 20 on aluminium terminal.

Two installing holes 91 that the power being connected with the negative terminal of adjacent two batteries connects on sheet 90 are respectively sleeved at adjacent two On the connection ring 20 of the aluminium matter of individual negative terminal, i.e. copper tip, and it is connected ring 20 with two respectively and is weldingly connected, with adjacent two Two installing holes 91 that the power that the positive terminal of individual battery, i.e. aluminium terminal are connected connects on sheet 90 are respectively sleeved at two positive poles On terminal, i.e. aluminium terminal and being weldingly connected with it respectively, the ring 20 that connects of aluminium matter is connected sheet 90 and aluminium matter with the power of aluminium matter Power welding of connecting that the connection between sheet 90 and aluminium terminal is between same metal material, effectively prevent copper aluminium welding It is good with unsteady problem, convenient welding and welding effect that the connection caused that is connected is difficult to, and vibration resistance is higher and security carries Height, the performance of battery pack is improved, and the price of aluminium is the cheapest, can reduce preparation cost to a certain extent.

Other compositions of battery pack 300 according to embodiments of the present invention are the most all known , it is not described in detail at this.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ", Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes It is contained at least one embodiment or the example of the present invention.In this manual, the schematic representation's necessarily pin to above-mentioned term To be identical embodiment or example.And, the specific features of description, structure, material or feature can be any one Individual or multiple embodiment or example combine in an appropriate manner.Additionally, those skilled in the art can will retouch in this specification The different embodiments stated or example engage and combine.

Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary, it is impossible to Being interpreted as limitation of the present invention, above-described embodiment can be become by those of ordinary skill in the art within the scope of the invention Change, revise, replace and modification.

Claims

1. an electrode terminal, it is characterised in that including:

Leading-out terminal, the outer peripheral face of described leading-out terminal is provided with flange；With

Connecting ring, described connection ring set is located on the upper end of described leading-out terminal and welds with described leading-out terminal, described connection Ring and described leading-out terminal are made up of different metal materials, and described connection ring is positioned at above described flange, described flange include with Described leading-out terminal be connected first annular flat part, from the outer of described first annular flat part downwardly and outwardly tilt extend ring Shape rake and the second annular flat part the most horizontal-extending from the outer of described annular rake, described first annular flat part Periphery along with the described periphery being connected ring along concordant or extend beyond outward the edge, periphery of described connection ring.

Electrode terminal the most according to claim 1, it is characterised in that described connection ring and the upper end of described leading-out terminal Portion is threaded.

Electrode terminal the most according to claim 1, it is characterised in that the upper surface of described connection ring and described exit The upper surface of son is concordant.

Electrode terminal the most according to claim 1, it is characterised in that the radial dimension of the upper end of described leading-out terminal Radial dimension less than the remainder of described leading-out terminal.

Electrode terminal the most according to claim 1, it is characterised in that described connection ring and described first annular flat part Upper surface welding.

Electrode terminal the most according to claim 5, it is characterised in that the external diameter of described first annular flat part is more than institute State the external diameter connecting ring.

Electrode terminal the most according to claim 5, it is characterised in that described flange is integrally formed with described leading-out terminal.

Electrode terminal the most according to claim 7, it is characterised in that the lower surface of described first annular flat part and institute State arc transition between the outer peripheral face of leading-out terminal.

9. according to the electrode terminal according to any one of claim 1-8, it is characterised in that described leading-out terminal is copper tip, Described connection ring is aluminium ring.

10. according to the electrode terminal according to any one of claim 1-8, it is characterised in that described leading-out terminal is aluminium terminal, Described connection ring is copper ring.

11. 1 kinds of battery cover board assemblies, it is characterised in that including:

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 passes described through hole and described fairlead, and described electrode terminal is according to claim Electrode terminal according to any one of 1-10.

12. 1 kinds of battery cover board assemblies, it is characterised in that including:

Main body cover plate, described main body cover plate is provided with the first fairlead and the second fairlead；

There is the first insulating sealer of the first through hole and there is the second insulating sealer of the second through hole；

Positive terminal and negative terminal, described positive terminal passes described first through hole and described first fairlead, described negative pole end Son passes described second through hole and described second fairlead,

Described negative terminal is the electrode terminal described in claim 1-9, and the connection ring of described negative terminal and described positive terminal Son is made up of identical metal material.

13. battery cover board assemblies according to claim 12, it is characterised in that also include: be arranged on described first and draw The second ring disk that portalling interior first annular video disc and is arranged in described second fairlead, described first insulating sealer props up Support is on described first annular video disc, and described second insulating sealer is supported on described second ring disk.

14. battery cover board assemblies according to claim 13, it is characterised in that set on the outer peripheral face of described negative terminal There is first annular flat part that flange, described flange include being connected with described leading-out terminal, from described first annular flat part Along downwardly and outwardly tilting the annular rake extended and second annular flat the most horizontal-extending from the outer of described annular rake Straight portion, the periphery of described first annular flat part along with the described periphery being connected ring along concordant or extend beyond outward described connection ring Edge, periphery, wherein said second insulating sealer be clamped in described second ring disk and described second annular flat part between and with Described second annular flat part welding.

15. 1 kinds of battery cover board assemblies, it is characterised in that including:

Positive terminal and negative terminal, described positive terminal passes described first insulating sealer and described first fairlead, described Negative terminal passes described second insulating sealer and described second fairlead,

Described positive terminal is the electrode terminal according to any one of claim 1-8 and 10, and the connection of described positive terminal Ring is made up of identical metal material with described negative terminal.

16. battery cover board assemblies according to claim 15, it is characterised in that also include: be arranged on described first and draw The second ring disk that portalling interior first annular video disc and is arranged in described second fairlead, described first insulating sealer props up Support is on described first annular video disc, and described second insulating sealer is supported on described second ring disk.

17. battery cover board assemblies according to claim 16, it is characterised in that set on the outer peripheral face of described positive terminal There is first annular flat part that flange, described flange include being connected with described leading-out terminal, from described first annular flat part Along downwardly and outwardly tilting the annular rake extended and second annular flat the most horizontal-extending from the outer of described annular rake Straight portion, the periphery of described first annular flat part along with the described periphery being connected ring along concordant or extend beyond outward described connection ring Edge, periphery, wherein said first insulating sealer be clamped in described first annular video disc and described second annular flat part between and with Described second annular flat part welding.

18. according to the battery cover board assembly described in claim 12 or 15, it is characterised in that described first insulating sealer and Second insulating sealer is ceramic-seal ring.

19. according to the battery cover board assembly described in claim 12 or 15, it is characterised in that described first through hole and second leads to Each in hole includes that hole section, interstitial hole section and lower opening section, the radial dimension of described upper hole section and described lower opening section are all higher than The radial dimension of described interstitial hole section.

20. battery cover board assemblies according to claim 19, it is characterised in that the roof of described lower opening section is provided with ring Connected in star.

21. battery cover board assemblies according to claim 19, it is characterised in that described first annular video disc and the second ring The upper end of each in shape video disc is provided with upper flange and lower end is provided with lower flange, in described first fairlead and the second fairlead Each includes fairlead section and lower fairlead section, and the radial dimension of described upper fairlead section is more than the footpath of described lower fairlead section To size, the lower end of described first annular video disc and the lower flange of described first annular video disc are supported on the upper of described first fairlead Weld on the diapire of fairlead section and with the inwall of the upper fairlead section of described first fairlead, the lower end of described second ring disk On the diapire of the upper fairlead section being supported on described second fairlead with the lower flange of described second ring disk and with described second The inwall welding of the upper fairlead section of fairlead.

22. 1 kinds of batteries, it is characterised in that include the battery cover board assembly as according to any one of claim 11-21.

23. 1 kinds of battery pack, it is characterised in that including:

Multiple batteries, described battery has positive terminal and negative terminal, and wherein said negative terminal is for being root according to claim According to the electrode terminal according to any one of claim 1-9；

Power connects sheet, and described power connects the described battery that sheet electrical connection is adjacent, and described power connects sheet, described negative terminal Connect ring be made up of identical metal material with described positive terminal.

24. 1 kinds of battery pack, it is characterised in that including:

Multiple batteries, described battery has positive terminal and negative terminal, and wherein said positive terminal is according to claim 1-8 With the electrode terminal according to any one of 10；

Power connects sheet, and described power connects the described battery that sheet electrical connection is adjacent, and described power connects sheet, described positive terminal Connect ring be made up of identical metal material with described negative terminal.