CN100558217C - A kind of nickel strap is fixed on method on the printed circuit board (PCB) - Google Patents
A kind of nickel strap is fixed on method on the printed circuit board (PCB) Download PDFInfo
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- CN100558217C CN100558217C CNB2005101354165A CN200510135416A CN100558217C CN 100558217 C CN100558217 C CN 100558217C CN B2005101354165 A CNB2005101354165 A CN B2005101354165A CN 200510135416 A CN200510135416 A CN 200510135416A CN 100558217 C CN100558217 C CN 100558217C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Nickel strap is fixed to method on the printed circuit board (PCB), and this method comprises nickel strap is fixed on the pad of printed circuit board (PCB), and wherein, the method on the described pad that nickel strap is fixed on printed circuit board (PCB) comprises fixedly nickel sheet, spot welding then on pad earlier.Method provided by the invention is simple to operate, can effectively enhance productivity, and reduces product cost, and can effectively guarantee the stability of product quality.
Description
Technical field
The invention relates to a kind of fixing means, specifically, the invention relates to the method on a kind of printed circuit board (PCB) that nickel strap is fixed on battery.
Background technology
Lithium ion battery is as a kind of chemical power source, refers to respectively the secondary cell that constitutes as both positive and negative polarity with two compounds that can reversibly embed with the removal lithium embedded ion.When battery charge, lithium ion takes off embedding from positive pole, in negative pole, embed, otherwise during discharge.
Lithium rechargeable battery because have specific energy height, operating voltage height, self-discharge rate low, have extended cycle life, advantage such as pollution-free and in modern mobile electronic device and communication apparatus, being used widely, as mobile phone, notebook computer, Hand Personal Computer, PDA(Personal Digital Assistant), small-sized camera, digital camera, portable DVD player/VCD and MP3 player.In recent years, lithium rechargeable battery also obtains application progressively in electric tool and electronic toy field.
The relationship between quality of the core component printed circuit board (PCB) (PCB) of lithium rechargeable battery is to the quality of battery performance.Printed circuit board (PCB) (PCB) comprises that mainly substrate (the at present general FR4 of employing glass plate) and surface cover copper pad, the surface is treated, as green oil, sensitization oil, anti-oxidation etc., be some letter symbols of sign effect silk-screen etc. in addition, it is single sided board that the substrate single face covers copper, and double-sided copper-clad is a double sided board, what copper was covered in the intermediate layer in addition is the multiaspect plate, the number of plies is many more, and manufacture craft requires high more, and difficulty is big more.The welding nickel strap is in order to draw the both positive and negative polarity that both positive and negative polarity is connected to battery from printed circuit board (PCB) (PCB), to form the test loop of this protective circuit plate.
Generally adopt conventional method that nickel strap is fixed on the printed circuit board (PCB) (PCB) in the assembly line of existing lithium ion battery, promptly adopt the technology of constant temperature ferrochrome soldering nickel strap to the printed circuit board (PCB) (PCB), just utilize the constant temperature flatiron with the nickel strap soldering to the pad of printed circuit board (PCB) (PCB).This technology comprises following several steps: as shown in Figure 1, (1) solder stick 4 (diameter of general used solder stick is 0.8 millimeter) is placed on the pad 3 and solder stick is melted on the pad 3, tin on the pad with constant temperature flatiron 2 (output temperature of constant temperature solder horn generally is made as 350 ℃); (2) then the front end of nickel strap to be welded 1 is stained with a little rosin scaling powder, according to the welding needs, determine the wicking length of wicking end, the vertical immersion of wicking end is melted to be had in the tin stove of scolding tin, immersion 0.5-1 takes out after second immediately, promptly finishes to be tin on the nickel strap soldering position; (3) nickel strap behind the wicking 1 is contacted with pad 3, weld with constant temperature flatiron 2, as shown in Figure 2.This soldering technological operation operation is many, and weak effect, efficient are low, and product cost, quality are had considerable influence.Analyze reason and mainly contain following several respects, at first, analyze from efficiency cost, needed that before carrying out soldering technology nickel strap is carried out wicking and handle, the pad of printed circuit board (PCB) (PCB) also needs last in advance tin in addition, just can carry out welding operation then.This traditional welding technological operation operation is many, and efficient is low, the cost height.The second, to analyze from quality again, the soldering process is owing to band rosin scaling powder, and frequent discovery has residual rosin behind the soldering nickel strap, it is easily adhered little solder splashes and causes short circuit easily, has potential safety hazard; In addition, manual another defective is to be not easy the soldering time to grasp, and the time is long easily to cause printed circuit board (PCB) (PCB) to produce local deformation under high-temperature, it is bad to cover copper loss, also causes the element temperature influence easily, has inefficacy hidden danger; The rosin smog of the volatilization of operating process simultaneously can be smoked and disturb the operating personnel, and is high to soldering operating personnel's solder technology requirement.And the printed circuit board (PCB) that obtains (PCB) quality discrepancy is big, unstable product quality.
Summary of the invention
Goal of the invention of the present invention is to overcome to adopt existing battery soldering nickel strap many to the method operational sequence on the printed circuit board (PCB), weak effect, efficient are low, and the unstable product quality that obtains, the high shortcoming of preparation cost and provide a kind of simple to operate, efficient height, quality better and steady quality, the preparation method who nickel strap is fixed to printed circuit board (PCB) that cost is low.
The present inventor finds, in the process of preparation printed circuit board (PCB), the method of traditional fixedly nickel strap is for adopting manual constant temperature ferrochrome soldering nickel strap to printed circuit board (PCB) (PCB), and before welding, on pad, be coated with one deck tin, and nickel strap need be carried out wicking and handle, the effect that the high temperature that utilizes welding to produce makes tin play adhesive the tin fusion is bonded together nickel strap and pad.Because the material of pad is a copper, other parts that good heat conductivity, temperature easily conduct on the circuit board cause damage, and in the prior art, can't be directly with the nickel strap direct spot welding to copper pad.And the present inventor finds, nickel strap is a welding material commonly used in a kind of battery of mobile phone, if first fixedly nickel sheet on the pad of printed circuit board (PCB), and then nickel strap is placed on nickel sheet upper surface, utilize the resistance heat that electrode output instantaneous large-current produces in the resistance welding machine welding process that the nickel sheet and the effective welding of nickel strap of material of the same race is fixing, the welding effect on nickel strap surface shows as and the sizable solder joint of electrode diameter, utilize this method like a cork nickel strap to be spoted weld on the pad, and more promptly save time with traditional constant temperature ferrochrome soldering and efficient.
The invention provides and a kind of nickel strap is fixed to method on the battery printed circuit board (PCB), this method comprises nickel strap is fixed on the pad of printed circuit board (PCB), wherein, the method on the described pad that nickel strap is fixed on printed circuit board (PCB) comprises fixedly nickel sheet, spot welding then on pad earlier.
The inefficacy hidden danger that adopts the method for spot welding nickel strap provided by the invention can effectively avoid short circuit potential safety hazard that the residual scolding tin metallics of traditional soldering process brings printed circuit board (PCB) and high temperature soldering that electronic devices and components such as printed circuit board (PCB) are brought, and can avoid being disturbed by rosin smog is smoked soldering process operation personnel.The more important thing is, spot weld operation is simple to operate, compare with original traditional-handwork soldering operation, owing to reduced and soaked nickel and go up the tin two procedures and effectively improved production efficiency with pre-, reduced product cost, in addition, adopt welding quality that method provided by the invention can guarantee good and can effectively guarantee the stability of product quality.
Description of drawings
Fig. 1 is the schematic diagram of the welding nickel strap method of prior art;
Fig. 2 is the schematic diagram of the welding nickel strap method of prior art;
Fig. 3 is the schematic diagram of welding nickel strap method of the present invention;
Fig. 4 is the schematic diagram of welding nickel strap method of the present invention;
Fig. 5 is the schematic diagram of welding nickel strap method of the present invention;
Fig. 6 a is the schematic diagram of welding nickel strap method of the present invention;
Fig. 6 b is the schematic diagram of welding nickel strap method of the present invention;
Fig. 7 is the schematic diagram of welding nickel strap method of the present invention;
Fig. 8 is the schematic diagram of welding nickel strap method of the present invention.
Embodiment
According to method provided by the invention, described spot welding is exactly to utilize the big electric current of exporting on the resistance welded machine electrode to produce the contact surface fusing of heat with part at the electrode contact position, and part links together by fusion points to each other under pressure.According to method provided by the invention, finish the resistance welding machine that described spot weld operation can adopt this area routine, those skilled in the art can select the resistance welding machine that is suitable for as required, for example can select for use MP20 model single electrode (single head) resistance welding machine that science and technology international corporation of Baolong produces or MB20 model bipolar electrode (double end) resistance welding machine to wait and implement spot weld operation.The condition that described employing resistance welding machine carries out spot welding is conventionally known to one of skill in the art.
According to the present invention, the method that described nickel sheet is fixed on the pad can adopt the method for well known to a person skilled in the art, as adopting surface mounting technology (SMT) the nickel sheet is fixed on the pad.Described surface mounting technology (SMT) is a mount technology known in those skilled in the art, is widely used in this area.Described nickel sheet can be fixed on the optional position of pad, and preferred fixed form is for being fixed on the nickel sheet middle part of pad.The length and the width of the described nickel sheet that is fixed are not particularly limited, the length of described nickel sheet and width all can be equal to or less than the length of side of pad, those skilled in the art can select suitable length and width as required, and the quantity of nickel sheet also is not particularly limited, and can be one or more pieces.As long as length, width and quantity for the nickel sheet guarantee in welding process, make nickel strap and described nickel sheet have enough contacts area to finish spot weld operation and be fixed together and get final product.Under the preferable case, the length of described nickel sheet equates that with the length of side of pad the size of described pad is decided according to the specification of different battery printed circuit board (PCB)s; The width of described nickel sheet is generally the 1-6 millimeter, is preferably the 2.5-5 millimeter; The thickness of described nickel sheet is the 0.1-0.5 millimeter, is preferably the 0.15-0.3 millimeter.
According to a specific embodiment of the present invention, the method that nickel strap is fixed on the pad of battery printed circuit board (PCB) comprises the steps:
(1) it is 3.8 millimeters with length earlier, width is 3.2 millimeters, thickness is that 0.3 millimeter nickel sheet 6 is 3.8 millimeters by the length that surface mounting technology (SMT) is separately fixed on the printed circuit board (PCB) 5, width is the centre of 3.4 millimeters pad 3, and the upper and lower both sides of described nickel sheet equate with the distance on the upper and lower both sides of pad.As shown in Figure 3.
(2) printed circuit board (PCB) that is fixed with the nickel sheet that step (1) is obtained and nickel strap to be welded are fixed in the anchor clamps 8 on the spot welding machine supporting plate, then the model of producing with Baolong science and technology international corporation be the electrode alignment of the bipolar electrode resistance welding machine 7 of MB20 be fixed with the nickel sheet the position at the enterprising spot welding of nickel strap, be about 0.5 second weld time.As shown in Figure 4.Obtain the printed circuit board (PCB) after the nickel strap welding operation finished as shown in Figure 5,9 are the weldering nuclear of welding after finishing.
According to another embodiment of the present invention, the method that nickel strap is fixed on the pad of battery printed circuit board (PCB) comprises the steps:
(1) it is 5.0 millimeters with length earlier, width is 4.5 millimeters, thickness is that 0.15 millimeter nickel sheet 11 is 5.0 millimeters by the length that surface mounting technology (SMT) is separately fixed at printed circuit board (PCB) 12, width is the centre of 4.5 millimeters pad 13, and the upper and lower both sides of described nickel sheet equate with the distance on the upper and lower both sides of pad.Shown in Fig. 6 b.Simultaneously nickel strap is welded for the ease of electrode, the back side of the pad locations of printed circuit board (PCB) is provided with U type open slot 10 with two single electrode resistance welding machines.Shown in Fig. 6 a.
(2) printed circuit board (PCB) that step (1) is obtained and nickel strap to be welded are fixed in the anchor clamps 15 on the spot welding machine supporting plate, the model that science and technology international corporation of two Baolongs are produced is that two electrodes of the single electrode resistance welding machine 14 of MP20 are clipped in the middle relatively and with nickel strap, aim at simultaneously be fixed with the nickel sheet on the printed circuit board (PCB) the position at the enterprising spot welding of nickel strap, be about 1.0 seconds weld time.As shown in Figure 7.Obtain the printed circuit board (PCB) of finishing the nickel strap welding operation as shown in Figure 8,16 for welding the weldering nuclear after finishing.
The kind of other parts, quantity are conventionally known to one of skill in the art on the structure of described printed circuit board (PCB) and the circuit board, their assemble method is for can adopt the method for well known to a person skilled in the art, concrete operations step and operating condition are conventionally known to one of skill in the art.
Claims (5)
1, a kind of nickel strap is fixed to method on the printed circuit board (PCB), this method comprises nickel strap is fixed on the pad of printed circuit board (PCB), it is characterized in that the method on the described pad that nickel strap is fixed on printed circuit board (PCB) comprises and adopts surface mounting technology the nickel sheet to be attached on the pad spot welding then earlier.
2, method according to claim 1, wherein, described nickel sheet is attached to the centre of pad.
3, method according to claim 1, wherein, the length of described nickel sheet and width are less than or equal to the length of side of pad respectively, and thickness is the 0.1-0.5 millimeter.
4, method according to claim 3, wherein, the length of described nickel sheet equates that with the length of side of pad width is the 2.5-5.0 millimeter, thickness is the 0.15-0.3 millimeter.
5, method according to claim 1, wherein, described spot welding adopts single electrode or bipolar electrode resistance welding machine to weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101354165A CN100558217C (en) | 2005-12-28 | 2005-12-28 | A kind of nickel strap is fixed on method on the printed circuit board (PCB) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101354165A CN100558217C (en) | 2005-12-28 | 2005-12-28 | A kind of nickel strap is fixed on method on the printed circuit board (PCB) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1993022A CN1993022A (en) | 2007-07-04 |
| CN100558217C true CN100558217C (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101354165A Active CN100558217C (en) | 2005-12-28 | 2005-12-28 | A kind of nickel strap is fixed on method on the printed circuit board (PCB) |
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| CN (1) | CN100558217C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205459B (en) * | 2011-05-04 | 2013-01-02 | 珠海市讯达科技有限公司 | Equipment for automatically welding battery circuit board and using method of equipment |
| CN103427085A (en) * | 2013-07-29 | 2013-12-04 | 昆山元崧电子科技有限公司 | Battery panel nickel sheet welding product |
| CN103440707B (en) * | 2013-08-02 | 2016-03-02 | 福建联迪商用设备有限公司 | A kind of magnetic head installation method and structure thereof |
| CN114211074A (en) * | 2021-12-15 | 2022-03-22 | 盐城维信电子有限公司 | Laser welding method for vehicle-mounted flexible board and nickel sheet |
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2005
- 2005-12-28 CN CNB2005101354165A patent/CN100558217C/en active Active
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| Publication number | Publication date |
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| CN1993022A (en) | 2007-07-04 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen BYD Lithium Battery Co., Ltd. Assignor: Biyadi Co., Ltd. Contract fulfillment period: 2008.4.25 to 2012.11.19 contract change Contract record no.: 2008440000071 Denomination of invention: Method for fixing nickel strip on printed circuit board License type: Exclusive license Record date: 2008.5.13 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.4.25 TO 2012.11.19 Name of requester: SHENZHEN BYD LITHIUM BATTERY CO., LTD. Effective date: 20080513 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen BYD Lithium Battery Co., Ltd. Assignor: Biyadi Co., Ltd. Contract fulfillment period: 2008.11.12 to 2014.4.30 contract change Contract record no.: 2008440000368 Denomination of invention: Method for fixing nickel strip on printed circuit board License type: Exclusive license Record date: 20081113 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.12 TO 2014.4.30; CHANGE OF CONTRACT Name of requester: SHENZHEN CITY BIYADILI BATTERY CO., LTD. Effective date: 20081113 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |