CN102580947B - Dust collector of battery pole piece - Google Patents
Dust collector of battery pole piece Download PDFInfo
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- CN102580947B CN102580947B CN201210031057.9A CN201210031057A CN102580947B CN 102580947 B CN102580947 B CN 102580947B CN 201210031057 A CN201210031057 A CN 201210031057A CN 102580947 B CN102580947 B CN 102580947B
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Abstract
The invention belongs to the technical field of dust collection equipment, particularly relates to a dust collector capable of cleaning dust particles on the surface of a battery pole piece and improving the surface quality of the battery pole piece. The dust collector comprises a main body and a bracket for fixing the main body, wherein the main body comprises an air blowing part and an air sucking part. Compared with the prior art, a pressure chamber and a vacuum chamber are distributed compactly in the main body of the dust collector provided by the invention, so that dust particles can be blown and sucked efficiently by air. The high-speed and centralized air blown out from a slit can uniformly blow dust particles of the movable pole piece in a width direction; and the air mixed with the dust particles can be sucked effectively in the vacuum chamber, so that the cleaning of the pole piece surface is realized, the uniformity of the surface quality of the pole piece is improved, the cycling performance and safety of the battery are improved, and in addition, the environmental pollution by the dust particles is avoided. Besides, the dust collector can be arranged on a machine simply and flexibly so as to achieve surface dedusting of the battery pole piece.
Description
Technical field
The invention belongs to cleaner technical field, relate in particular to a kind of dust granules that can clear up battery pole piece surface, improve the dust arrester of battery pole piece surface quality.
Background technology
Pole piece is as the important component part of lithium ion battery, and its micro-structural has very important impact for the performance of lithium ion battery.Battery pole piece is being compacted after itemize, and dust collecting process need to be passed through in surface, the impact of the dust granules of avoiding being distributed in pole piece surface on the internal resistance of cell and self-discharge performance.In order to strengthen the stability of battery performance, to having relatively high expectations of pole piece surface dust, General Requirements battery pole piece in the divided by maximum granularity of the dust of coiling front surface below 20 μ m.If pole piece remained on surface has the particle of large-size, can cause the local micro-structural stress of lithium ion battery to concentrate, cause the local damage in the time of further processing and use procedure, easily cause the cycle performance of battery underground, even cause security incident.
At present, be generally divided into two classes for the dust arrester on pole piece surface, a class is the hairbrush that uses contact pole piece, the dust arrester of another kind of use gases at high pressure.Wherein, although adopt hairbrush dedusting principle simple, there is obvious shortcoming.Brush silk, in the time streaking pole piece surface, easily leaves slide mark on pole piece, even scratches pole piece; Part dust granules can be attached on the brush silk of hairbrush, is not only difficult to cleanedly, also can cause secondary pollution to pole piece; Hairbrush, due to stained, need to often be changed, and makes its maintenance cost higher.So it is that one is preferably selected that employing provides the gases at high pressure of green power to carry out dedusting.
In the device of existing use dedusting, gases at high pressure are after pipeline transportation, and from exporting the cleaning area that directly aims at the mark, the wind speed in exit has randomness with the shape of outlet, is difficult to accurately determine the target area of dedusting.In the clear dust technique of battery pole piece, chaotic gas flow reduces the uniformity of pole piece surface quality, and local stronger air-flow even can damage the coating on pole piece surface.The dust being blown afloat by gases at high pressure, owing to failing to be drawn in time, can fly away in the space around pole piece, weakens clean effect, also can pollute working environment.
On the other hand, while adopting vacuum cleaning, if the region on surface for clearance is large, vacuum sucks young, and not only negative pressure of vacuum is wasted, and part is positioned at the dust granules in " dead angle " region and can not be drawn and discharge.The region on pole piece surface is excessive, has increased the difficulty to cavity sealing, and gas is very easily from the ovfl of pole piece and air cavity.Long-time continuous cleaning pole piece surface, more requires dust arrester to be simple and easyly arranged on deftly on machine.
In view of this, the necessary one that provides can be improved dust removing effects, is convenient to collect and process dust granules, avoids particle contamination, thereby clears up efficiently the dust arrester of battery pole piece surface dust particle.
Summary of the invention
The object of the invention is to: for the deficiencies in the prior art, and provide one can improve dust removing effects, be convenient to collect and process dust granules, avoid particle contamination, thereby clear up efficiently the dust arrester of battery pole piece surface dust particle.
To achieve these goals, the present invention adopts following technical scheme:
A kind of dust-clearing apparatus for battery pole piece, comprises main body and the bearing for fixing described main body, and described main body comprises blow part and air-breathing part.The part of blowing is used for blowing out high pressure gas, removes the dust on pole piece, and air-breathing part is for drawing the gas that is mixed with dust granules, thereby reaches the effect of removing pole piece surface dust.
One as dust-clearing apparatus for battery pole piece of the present invention is improved, the described part of blowing comprises pressure chamber, is communicated with the intake section inputted for gases at high pressure, is located at the first cylinder being connected in described pressure chamber and with described intake section with described pressure chamber, and air blowing slit.
One as dust-clearing apparatus for battery pole piece of the present invention is improved, described suction unit is divided the portion of giving vent to anger that comprises vacuum chamber, be communicated with described vacuum chamber and be connected with vacuum environment, is located at the second cylinder being connected in described vacuum chamber and with the described portion of giving vent to anger, and backflow suction inlet.Pressure chamber and vacuum chamber are the optimal design based on hydrodynamic simulation, and gas while blowing out via the air blowing slit of pressure chamber flow velocity increase, and be a process of slowing down by vacuum chamber resorption.
When actual use, lithium ion battery anode pole piece after cold-press process before winding process or cathode sheet are being placed on deflector roll, first make to produce relative motion between pole piece and dust arrester, then utilize the gases at high pressure that blow out in air blowing slit to blow the dust granules on pole piece surface, the backflow suction inlet of recycling vacuum chamber, absorption is mixed with the gas of dust granules, and is discharged by the portion of giving vent to anger, thereby reaches the effect of the dust of removing pole piece surface.In the time carrying out dedusting operation, an outer surface of main body is relative with the surface of pole piece, and the distance of two faces is not more than 20mm.
Improve as the one of dust-clearing apparatus for battery pole piece of the present invention, between described pressure chamber and vacuum chamber through holding part transition.Concrete, holding part is between main body and treats the region between powder pole piece clearly, depends on wall and the end design of main body, guarantees this dust arrester in use, holding part can be realized excellent sealing effectiveness.
One as dust-clearing apparatus for battery pole piece of the present invention is improved, and described air blowing slit is arranged between described pressure chamber and holding part.
One as dust-clearing apparatus for battery pole piece of the present invention is improved, and described backflow suction inlet is arranged between described vacuum chamber and holding part.
Improve as the one of dust-clearing apparatus for battery pole piece of the present invention, described the first cylinder and the second cylinder are taper cylinder, and the first cylinder and the second cylinder are the cylinder with certain taper.
One as dust-clearing apparatus for battery pole piece of the present invention is improved, the width of described air blowing slit is less than the width of backflow suction inlet, and the two is located on the same wall of described main body, can also adjust the length of air blowing slit and backflow suction inlet according to the size of target for clearance.The length of described air blowing slit and backflow suction inlet is greater than 1/2nd of pole piece width dimensions.
One as dust-clearing apparatus for battery pole piece of the present invention is improved, and described intake section and the portion of giving vent to anger are all arranged on end cap.
One as dust-clearing apparatus for battery pole piece of the present invention is improved, and described bearing is fixedly connected with the end of main body by tight lock part.Distance between the clean face of main body and target can be set according to the adjustable locking position on bearing.
Compared with prior art, the present invention, by compactness in main body arrange pressure chamber and vacuum chamber, effectively utilizes gas to blow and resorption dust granules.From slit, blow out the gas in high speed, range set, blow the dust granules of pole piece width uniformity, the timely resorption efficiently of vacuum chamber is mixed with the gas of dust granules, not only realize cleaning pole piece surface, improve the uniformity of pole piece surface quality, thereby improved cycle performance and the security performance of battery; And avoid the pollution of dust granules to surrounding environment.In addition, dust arrester can also simple and easyly be arranged on machine deftly, realizes the surface dust operation to battery pole piece.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, dust arrester of the present invention and useful technique effect thereof are further described:
Fig. 1 is the perspective exploded view of dust arrester of the present invention;
Fig. 2 is the use view after dust arrester assembling of the present invention.
The specific embodiment
Refer to Fig. 1 and Fig. 2, a kind of dust-clearing apparatus for battery pole piece of the present invention, comprises main body 1 and the bearing 2 for fixing described main body 1, and described main body 1 comprises air blowing part 17 and air-breathing part 16.
Wherein, described air blowing part 17 comprises pressure chamber 3, is communicated with for the intake section 4 of gases at high pressure input, is located in described pressure chamber 3 and the first cylinder 8 being connected with described intake section 4 with described pressure chamber 3, and air blowing slit 9.
The portion of giving vent to anger 6 that described air-breathing part 16 comprises vacuum chamber 5, is communicated with described vacuum chamber 5 and is connected with vacuum environment, be located in described vacuum chamber 5 and the second cylinder 10 being connected with the described portion 6 of giving vent to anger, and backflow suction inlet 11, described the first cylinder 8 and the second cylinder 10 are taper cylinder.
Between described pressure chamber 3 and vacuum chamber 5 through holding part 12 transition.Concrete, described holding part 12 is between main body 1 and treats the region between powder pole piece 13 clearly, depends on wall and the end design of main body, guarantees this dust arrester in use, holding part 12 can be realized excellent sealing effectiveness.
Described air blowing slit 9 is arranged between described pressure chamber 3 and holding part 12, described backflow suction inlet 11 is arranged between described vacuum chamber 5 and holding part 12, the width of described air blowing slit 9 is less than the width of backflow suction inlet 11, and the two is located on the same wall of described main body 1.Can also adjust the length of air blowing slit 9 and backflow suction inlet 11 according to the size of target for clearance.The length of described air blowing slit 9 and backflow suction inlet 11 is greater than 1/2nd of pole piece width dimensions.
Described intake section 4 and the portion 6 of giving vent to anger are all arranged on end cap 7.
Described bearing 2 is fixedly connected with the end of main body 1 by tight lock part 15.Bearing 2 plays the effect of accurate location dust arrester.In the time that the bearing 2 of connection main body 1 is connected in machinery equipment, dust arrester itself can not deform.This is because 10 points of main bodys are light and handy, and the design rigidity of bearing 2 and tight lock part 15 also avoids the distortion that affects installation accuracy to produce.
The operation principle of dust-clearing apparatus for battery pole piece of the present invention is: pressure chamber 3 can input gases at high pressure by intake section 4, and vacuum chamber 5 is by the gas of the portion's of giving vent to anger 6 discharge currents two chambers (being pressure chamber 5 and vacuum chamber 6) in main body 1.
Concrete, the outer wall of the first cylinder 8 with tapering that pressure chamber 3 inside are provided with and pressure chamber's 3 inner wall limit gases are at the circulating area of pressure chamber 3 inside.The air blowing slit 9 that pressure chamber 3 has on just to the face of clean object in main body 1 is for blowing out high-pressure dust-cleaning gas.The inside of vacuum chamber 5 is provided with the second cylinder 10 with tapering, is opened in backflow suction inlet 11 on the same face of main body 1 for drawing the gas that is mixed with dust granules, and is discharged by the portion of giving vent to anger 6 with air blowing slit 9.Wherein, the pressure chamber 3 of main body 1, vacuum chamber 5 and holding part 12 form gas communication region, and the size and dimension in region is optimized design in hydrodynamic simulation software.Gases at high pressure are inputted main body 1 from intake section 4, and after pressure chamber 3, wind speed increases and can blow afloat pole piece surface dust particle.Dust granules is mixed in the gas in holding part 12, and the profile of main body 1 makes holding part 12 realize sealing, makes that dust granules is unlikely to be leaked in device space around.The width of the backflow suction inlet 11 of vacuum chamber 5 is significantly greater than the width of air blowing slit 9, and the gas in holding part 12 and dust granules are drawn back into rapidly in vacuum chamber 5, are discharged to outside dust arrester via the portion of giving vent to anger 6.
Please continue to refer to Fig. 2, the present invention is in the time of actual installation, and operator need adjust the installation site of bearing 2, makes the outside wall surface of main body 1 just to clear up pole piece surface to need.Operator only must connect and establish gas pipeline at intake section 4, between the portion of giving vent to anger 6 and vacuum environment, realizes and being communicated with.
When use, operator opens the supply of gases at high pressure, gas flows into the pressure chamber 3 of main body 1 by intake section 4, the gas of holding part 12 refluxes through the backflow suction inlet 11 of vacuum chamber 5 together with the pole piece surface dust particle being blown afloat, discharge from the portion of giving vent to anger 6, complete the conveying loop of whole gas.Thus, operator can carry out collection and treatment to dust granules beyond the portion of giving vent to anger 6.Due to pole piece 13 continuous feeds, the position of deflector roll 14 relative main bodys does not change, and dust arrester is cleared up the dust granules on pole piece 13 surfaces incessantly.In the time carrying out dedusting operation, an outer surface of main body 1 is relative with the surface of pole piece 13, and the distance of two faces is not more than 20mm.
In order to verify beneficial effect of the present invention, we adopt respectively hairbrush of the prior art and dust arrester of the present invention to carry out dedusting to same battery pole piece 13, and the surface quality that adopts the pole piece 13 that these two kinds of methods cleared up is carried out respectively analyzing (instrument of employing is charge coupled cell, i.e. CCD).Result shows, on the surface of pole piece 13, brushes after ten times at hairbrush, and part dust granules still remains on pole piece 13 surfaces; And adopt after dust arrester cleaning of the present invention, on the surface of pole piece 13, almost can't see residual dust granules.
Compared with prior art, the present invention, by arrange in the interior compactness of main body 1 pressure chamber 3 and vacuum chamber 5, effectively utilizes gas to blow and resorption dust granules.From air blowing slit 9, blow out the gas in high speed, range set, blow the dust granules of pole piece 13 widths uniformity, the timely resorption efficiently of vacuum chamber 5 is mixed with the gas of dust granules, not only realize cleaning pole piece 13 surfaces, improve the uniformity of pole piece 13 surface quality, thereby improved cycle performance and the security performance of battery; And avoid the pollution of dust granules to surrounding environment.In addition, dust arrester can also simple and easyly be arranged on machine deftly, realizes the surface dust operation to battery pole piece.
To the cleaning completely of above-mentioned pole piece 13 surface dust particles, be that the power by rationally utilizing air-flow is realized.The present invention is by the structure of design dust arrester chamber, make the gas of input can on the width of pole piece 13, blow dust granules uniformity, and discharge the dust granules that these separate from pole piece 13, make it outside device, be able to be collected in time and process.The present invention can be widely used in improving the surface quality of electrodes of lithium-ion batteries 13, but be not limited to the clear powder craft on electrodes of lithium-ion batteries 13 surfaces, for knowing those skilled in the art, the present invention is equally applicable to carry out material or object surface production industry and the technical field of dust removal process.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the present invention is not limited to the specific embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition,, although used some specific terms in this description, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (2)
1. a dust-clearing apparatus for battery pole piece, it is characterized in that: comprise main body (1) and the bearing (2) for fixing described main body (1), described main body (1) comprises blow part (17) and air-breathing part (16), described air blowing part (17) comprises pressure chamber (3), be communicated with the intake section (4) for gases at high pressure input with described pressure chamber (3), be located in described pressure chamber (3) and the first cylinder (8) being connected with described intake section (4), and air blowing slit (9), described air-breathing part (16) comprises vacuum chamber (5), the portion of giving vent to anger (6) that is communicated with and is connected with vacuum environment with described vacuum chamber (5), be located in described vacuum chamber (5) and the second cylinder (10) being connected with the described portion of giving vent to anger (6), and backflow suction inlet (11), between described pressure chamber (3) and vacuum chamber (5) through holding part (12) transition, described air blowing slit (9) is arranged between described pressure chamber (3) and holding part (12), described backflow suction inlet (11) is arranged between described vacuum chamber (5) and holding part (12), described the first cylinder (8) and the second cylinder (10) are taper cylinder, the width of described air blowing slit (9) is less than the width of backflow suction inlet (11), and the two is located on the same wall of described main body (1), described intake section (4) and the portion of giving vent to anger (6) are all arranged on end cap (7), the outer wall of the first cylinder (8) with tapering that described pressure chamber (3) inside is provided with and the inner wall limit gas of described pressure chamber (3) are at the inner circulating area of described pressure chamber (3).
2. dust-clearing apparatus for battery pole piece according to claim 1, is characterized in that: described bearing (2) is fixedly connected with the end of main body (1) by tight lock part (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210031057.9A CN102580947B (en) | 2012-02-13 | 2012-02-13 | Dust collector of battery pole piece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210031057.9A CN102580947B (en) | 2012-02-13 | 2012-02-13 | Dust collector of battery pole piece |
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| CN102580947A CN102580947A (en) | 2012-07-18 |
| CN102580947B true CN102580947B (en) | 2014-06-18 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102989732A (en) * | 2012-11-12 | 2013-03-27 | 彩虹（张家港）平板显示有限公司 | Dust removal method adopting ion wind curtain |
| CN104128330B (en) * | 2013-06-28 | 2016-08-10 | 中航锂电（江苏）有限公司 | Dust removal device of pole piece and use the pole piece slicing device of this dust removal device of pole piece |
| CN106099162B (en) * | 2016-08-10 | 2018-11-30 | 深圳市慧通天下科技股份有限公司 | A kind of dust collecting system for rubbing piece machine |
| CN109807115A (en) * | 2019-04-02 | 2019-05-28 | 广东基泰智能设备有限公司 | A kind of dedusting mechanism |
| CN112173824A (en) * | 2020-09-15 | 2021-01-05 | 于肖肖 | Weaving cloth cuts coiling mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2933619Y (en) * | 2006-07-29 | 2007-08-15 | 汕头市华天富信息材料有限公司 | Film cleaning device |
| CN201008870Y (en) * | 2007-03-05 | 2008-01-23 | 咸阳华清设备科技有限公司 | Screen dust removing device of flat panel display |
| CN201029100Y (en) * | 2007-03-14 | 2008-02-27 | 深圳市邦凯电子有限公司 | Powder sweeping device of electrode piece roller press |
| JP5162612B2 (en) * | 2010-03-26 | 2013-03-13 | 三星ダイヤモンド工業株式会社 | Air dust collector |
| CN102161209B (en) * | 2010-12-31 | 2012-11-28 | 东莞市飞新达精密机械科技有限公司 | Waste discharging structure of battery pole plate forming machine |
| CN202490803U (en) * | 2012-02-13 | 2012-10-17 | 东莞新能源科技有限公司 | Battery pole-piece dust removing device |
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