CN102580947A - Dust collector of battery pole piece - Google Patents
Dust collector of battery pole piece Download PDFInfo
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- CN102580947A CN102580947A CN2012100310579A CN201210031057A CN102580947A CN 102580947 A CN102580947 A CN 102580947A CN 2012100310579 A CN2012100310579 A CN 2012100310579A CN 201210031057 A CN201210031057 A CN 201210031057A CN 102580947 A CN102580947 A CN 102580947A
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- pole piece
- battery pole
- dust
- dust arrester
- vacuum chamber
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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 the cleaner technical field, relate in particular to a kind of dust granules that can clear up the 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 influence for the performance of lithium ion battery.Battery pole piece is after being compacted itemize, and the surface needs through dust collecting process, avoids being distributed in the influence of the dust granules on pole piece surface to 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 dedusting, generally require battery pole piece in the divided by maximum granularity of the dust of coiling front surface below 20 μ m.If the 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 when further processing and use, cause the cycle performance of battery underground easily, even cause security incident.
At present, the dust arrester to the pole piece surface generally is divided into two types, one type of hairbrush that is to use the contact pole piece, the dust arrester of another kind of use gases at high pressure.Wherein, though adopt hairbrush dedusting principle simple, there is significant disadvantages.The brush silk is prone on pole piece, stay slide mark when streaking the pole piece surface, even scratches pole piece; The part dust granules can brush silk attached to hairbrush on, not only be difficult to cleared up, also can cause secondary pollution to pole piece; Hairbrush is because stained, and often replacing makes higher to its maintenance cost.So adopting the gases at high pressure that green power is provided to carry out dedusting is a kind of more excellent selection.
In the device of existing using gases dedusting, gases at high pressure are through behind the 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 confirm the target area of dedusting.In the clear dust technology of battery pole piece, chaotic gas flow makes the uniformity of pole piece surface quality reduce, local stronger air-flow even can damage the pole piece coating surfaces.Dust by gases at high pressure blow afloat owing to fail by timely absorption, can fly away in the space around the pole piece, weakens the effect of cleaning, also can pollute working environment.
On the other hand, when adopting vacuum cleaning, if the zone on surface for clearance greatly, vacuum sucks young, and not only negative pressure of vacuum is wasted, and part is positioned at the dust granules in " dead angle " zone can not be drawn discharge.Pole piece surface regional excessive increased the difficulty that cavity is sealed, 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 simple and easyly to be installed on the machine deftly.
In view of this, necessaryly provide a kind of and can improve dust removing effects, be convenient to collect and handle dust granules, avoid particle contamination, thereby clear up the dust arrester of battery pole piece surface dust particle efficiently.
Summary of the invention
The objective of the invention is to: to the deficiency of prior art, and a kind of dust removing effects that can improve is provided, is convenient to collect and handle dust granules, avoid particle contamination, thereby clear up the dust arrester of battery pole piece surface dust particle efficiently.
To achieve these goals, the present invention adopts following technical scheme:
A kind of battery pole piece dust arrester comprises main body and the bearing that is used for fixing said main body, and said main body comprises blow part and air-breathing part.The part of blowing is used to blow out high pressure gas, removes the dust on the pole piece, and air-breathing part then is used to draw the gas that is mixed with dust granules, thereby reaches the effect of removing the pole piece surface dust.
A kind of improvement as battery pole piece dust arrester of the present invention; The said part of blowing comprises pressure chamber, is communicated with the intake section that supplies gases at high pressure to import, is located in the said pressure chamber and first cylinder that is connected with said intake section with said pressure chamber, and the air blowing slit.
A kind of improvement as battery pole piece dust arrester of the present invention; Said suction unit branch comprises vacuum chamber, be communicated with said vacuum chamber and the portion of giving vent to anger that is connected with vacuum environment, be located in the said vacuum chamber and second cylinder that is connected with the said portion of giving vent to anger, and the backflow suction inlet.Pressure chamber and vacuum chamber are based on the optimal design of hydrodynamics emulation, and gas when blowing out via the air blowing slit of pressure chamber flow velocity increase, and be a process of slowing down by the vacuum chamber resorption.
During actual the use; Lithium ion battery anode pole piece behind the cold-press process before the winding process or negative electrode pole piece are being placed on the deflector roll, are making earlier between pole piece and dust arrester and produce relative motion, utilizing the gases at high pressure that blow out in the air blowing slit to blow the dust granules on pole piece surface then; Utilize the backflow suction inlet of vacuum chamber again; 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 the pole piece surface.When carrying out the dedusting operation, the surface of outer surface of body and pole piece relatively, the distance of two faces is not more than 20mm.
As a kind of improvement of battery pole piece dust arrester of the present invention, between said pressure chamber and the vacuum chamber through the holding part transition.Concrete, holding part is between body and treats the zone between the powder pole piece clearly, depends on the wall and the end design of body, guarantees this dust arrester in use, holding part can be realized excellent sealing effectiveness.
As a kind of improvement of battery pole piece dust arrester of the present invention, said air blowing slit is arranged between said pressure chamber and the holding part.
As a kind of improvement of battery pole piece dust arrester of the present invention, said backflow suction inlet is arranged between said vacuum chamber and the holding part.
As a kind of improvement of battery pole piece dust arrester of the present invention, said first cylinder and second cylinder are the taper cylinder, reach first cylinder and second cylinder and are the cylinder with certain taper.
A kind of improvement as battery pole piece dust arrester of the present invention; The width of said air blowing slit is less than the width of backflow suction inlet; And the two is located on the same wall of said 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 said air blowing slit and backflow suction inlet is greater than 1/2nd of pole piece width dimensions.
As a kind of improvement of battery pole piece dust arrester of the present invention, said intake section all is arranged on the end cap with the portion of giving vent to anger.
As a kind of improvement of battery pole piece dust arrester of the present invention, said bearing is fixedly connected with the end of body through tight lock part.Distance between main body and target cleaning face can be set according to the adjustable locking position on the bearing.
Compared with prior art, the present invention effectively utilizes gas to blow and the resorption dust granules through compactness in body arrange pressure chamber and vacuum chamber.From slit, blow out the gas in high speed, the 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 realized the cleaning on pole piece surface has been improved the uniformity of pole piece surface quality, thereby improved the cycle performance and the security performance of battery; And avoided the pollution of dust granules to surrounding environment.In addition, dust arrester can also simple and easyly be installed on the machine deftly, realizes the surperficial dedusting operation to battery pole piece.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment, dust arrester of the present invention and useful technique effect thereof are further specified:
Fig. 1 is the perspective exploded view of dust arrester of the present invention;
The user mode sketch map of Fig. 2 after for dust arrester of the present invention assembling.
The specific embodiment
See also Fig. 1 and Fig. 2, a kind of battery pole piece dust arrester of the present invention comprises main body 1 and the bearing 2 that is used for fixing said main body 1, and said main body 1 comprises air blowing part 17 and air-breathing part 16.
Wherein, said air blowing part 17 comprises pressure chamber 3, is communicated with the intake section 4 that supplies the gases at high pressure input, is located in the said pressure chamber 3 and first cylinder 8 that is connected with said intake section 4 with said pressure chamber 3, and air blowing slit 9.
Said air-breathing part 16 comprises vacuum chamber 5, be communicated with said vacuum chamber 5 and the portion of giving vent to anger 6 that is connected with vacuum environment, be located in the said vacuum chamber 5 and second cylinder 10 that is connected with the said portion 6 of giving vent to anger; And backflow suction inlet 11, said first cylinder 8 and second cylinder 10 are the taper cylinder.
Between said pressure chamber 3 and the vacuum chamber 5 through holding part 12 transition.Concrete, said holding part 12 is between the body 1 and the zone of treating 13 of powder pole pieces clearly, depends on the wall and end design of body, guarantees this dust arrester in use, and holding part 12 can be realized the sealing effectiveness of excellence.
Said air blowing slit 9 is arranged between said pressure chamber 3 and the holding part 12; Said backflow suction inlet 11 is arranged between said vacuum chamber 5 and the holding part 12; The width of said air blowing slit 9 is less than the width of backflow suction inlet 11, and the two is located on the same wall of said 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 said air blowing slit 9 and backflow suction inlet 11 is greater than 1/2nd of pole piece width dimensions.
Said intake section 4 all is arranged on the end cap 7 with the portion 6 of giving vent to anger.
Said bearing 2 is fixedly connected with the end of body 1 through tight lock part 15.Bearing 2 plays the effect of accurate location dust arrester.When the bearing 2 that connects body 1 was connected on the machinery equipment, dust arrester itself can not deform.This is because body 10 minutes is light and handy, and the distortion that the design rigidity of bearing 2 and tight lock part 15 is also avoided influencing installation accuracy produces.
The operation principle of battery pole piece dust arrester of the present invention is: pressure chamber 3 can be through intake section 4 input gases at high pressure, and vacuum chamber 5 is through the gas of the portion's of giving vent to anger 6 discharge currents two chambers (being pressure chamber 5 and vacuum chamber 6) on body 1.
Concrete, the inner wall limits gas of the outer wall of first cylinder 8 of the band tapering that pressure chamber 3 inside are provided with and body 1 other parts is at the circulating area of body 1 inside.Pressure chamber 3 is used to blow out high-pressure dust-cleaning gas at body 1 air blowing slit 9 of having on the face of cleaning object.The inside of vacuum chamber 5 is provided with second cylinder 10 of band tapering, and the backflow suction inlet 11 that is opened on the same one side of body 1 with air blowing slit 9 is used to draw the gas that is mixed with dust granules, and is discharged by the portion of giving vent to anger 6.Wherein, the pressure chamber 3 of body 1, vacuum chamber 5 and holding part 12 are formed the gas communication zone, and the size and dimension in zone is optimized design in the hydrodynamics simulation software.Gases at high pressure are from intake section 4 input bodies 1, 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 the holding part 12, and the profile of body 1 makes holding part 12 realize sealing, makes in the unlikely space that leaks into around the device of dust granules.Significantly greater than the width of air blowing slit 9, gas in the holding part 12 and dust granules are drawn back into rapidly in the vacuum chamber 5 width of the backflow suction inlet 11 of vacuum chamber 5, are discharged to outside the dust arrester via the portion of giving vent to anger 6.
Please continue to consult Fig. 2, the present invention is when actual installation, and the operator need adjust the installation site of bearing 2, makes the outside wall surface of body 1 to clear up the pole piece surface over against need.The operator only must connect at intake section 4 and establish gas pipeline, between portion of giving vent to anger 6 and vacuum environment, realizes being communicated with.
During use; The operator opens the supply of gases at high pressure; Gas flows into the pressure chamber 3 of body 1 through intake section 4; The gas of holding part 12 refluxes with the backflow suction inlet 11 of the pole piece surface dust particle that is blown afloat through vacuum chamber 5, discharges from the portion of giving vent to anger 6, accomplishes the conveying loop of whole gas.Thus, the operator can carry out collection and treatment to dust granules beyond the portion of giving vent to anger 6.Because pole piece 13 continuous feeds, the position of deflector roll 14 relative bodies does not change, and dust arrester is cleared up the dust granules on pole piece 13 surfaces incessantly.When carrying out the dedusting operation, the surface of outer surface of body 1 and pole piece 13 relatively, the distance of two faces is not more than 20mm.
In order to verify beneficial effect of the present invention; We adopt hairbrush of the prior art and dust arrester of the present invention that same battery pole piece 13 is carried out dedusting respectively; And the surface quality that adopts the pole piece 13 that these two kinds of methods cleared up carried out analyzing (instrument of employing is charge coupled cell, i.e. CCD) respectively.The result shows that after hairbrush was brushed ten times, the part dust granules still remained on pole piece 13 surfaces on the surface of pole piece 13; And after adopting dust arrester cleaning of the present invention, almost can't see residual dust granules on the surface of pole piece 13.
Compared with prior art, the present invention effectively utilizes gas to blow and the resorption dust granules through compactness in body 1 arrange pressure chamber 3 and vacuum chamber 5.From air blowing slit 9, blow out the gas in high speed, the range set; Blow the dust granules of pole piece 13 widths uniformity; Vacuum chamber 5 timely resorptions efficiently are mixed with the gas of dust granules; Not only realized the cleaning on pole piece 13 surfaces has been improved the uniformity of pole piece 13 surface quality, thereby improved the cycle performance and the security performance of battery; And avoided the pollution of dust granules to surrounding environment.In addition, dust arrester can also simple and easyly be installed on the machine deftly, realizes the surperficial dedusting operation to battery pole piece.
To the cleaning fully of above-mentioned pole piece 13 surface dust particles, be to realize through the power that rationally utilizes air-flow.The present invention is through 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 these from the dust granules that pole piece 13 separates, it is able to by timely collection and processing outside device.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 the production industry and the technical field of dust removal process.
According to the announcement and the instruction of above-mentioned specification, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the specific embodiment that discloses and describe above the present invention is not limited to also should fall in the protection domain of claim of the present invention modifications more of the present invention and change.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the present invention is not constituted any restriction.
Claims (10)
1. battery pole piece dust arrester is characterized in that: comprise main body (1) and be used for fixing the bearing (2) of said main body (1), said main body (1) comprises blow part (17) and air-breathing part (16).
2. battery pole piece dust arrester according to claim 1; It is characterized in that: the said part (17) of blowing comprises pressure chamber (3), is communicated with the intake section (4) that supplies the gases at high pressure input, is located at first cylinder (8) that said pressure chamber (3) is interior and be connected with said intake section (4) with said pressure chamber (3), and air blowing slit (9).
3. battery pole piece dust arrester according to claim 2; It is characterized in that: said air-breathing part (16) comprises vacuum chamber (5), be communicated with said vacuum chamber (5) and the portion of giving vent to anger (6) that is connected with vacuum environment, be located in the said vacuum chamber (5) and second cylinder (10) that is connected with the said portion of giving vent to anger (6), and backflow suction inlet (11).
4. battery pole piece dust arrester according to claim 3 is characterized in that: between said pressure chamber (3) and the vacuum chamber (5) through holding part (12) transition.
5. battery pole piece dust arrester according to claim 4 is characterized in that: said air blowing slit (9) is arranged between said pressure chamber (3) and the holding part (12).
6. battery pole piece dust arrester according to claim 4 is characterized in that: said backflow suction inlet (11) is arranged between said vacuum chamber (5) and the holding part (12).
7. battery pole piece dust arrester according to claim 3 is characterized in that: said first cylinder (8) and second cylinder (10) are the taper cylinder.
8. battery pole piece dust arrester according to claim 3 is characterized in that: the width of said air blowing slit (9) is less than the width of backflow suction inlet (11), and the two is located on the same wall of said body (1).
9. battery pole piece dust arrester according to claim 3 is characterized in that: said intake section (4) and the portion of giving vent to anger (6) all are arranged on the end cap (7).
10. battery pole piece dust arrester according to claim 1 is characterized in that: said bearing (2) is fixedly connected with the end of body (1) through 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 |
Applications Claiming Priority (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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| CN102580947A true CN102580947A (en) | 2012-07-18 |
| CN102580947B CN102580947B (en) | 2014-06-18 |
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| CN201210031057.9A Active CN102580947B (en) | 2012-02-13 | 2012-02-13 | Dust collector of battery pole piece |
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Cited By (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 |
| CN104128330A (en) * | 2013-06-28 | 2014-11-05 | 中航锂电（洛阳）有限公司 | Pole shoe dust collector and pole shoe slicing device utilizing same |
| CN106099162A (en) * | 2016-08-10 | 2016-11-09 | 深圳市慧通天下科技股份有限公司 | A kind of dust collecting system rubbing sheet 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN112173824A (en) * | 2020-09-15 | 2021-01-05 | 于肖肖 | Weaving cloth cuts coiling mechanism |
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| CN102580947B (en) | 2014-06-18 |
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