CN202681838U - Cyclone separation dust cup of dust cleaner - Google Patents

Cyclone separation dust cup of dust cleaner Download PDF

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Publication number
CN202681838U
CN202681838U CN 201220314798 CN201220314798U CN202681838U CN 202681838 U CN202681838 U CN 202681838U CN 201220314798 CN201220314798 CN 201220314798 CN 201220314798 U CN201220314798 U CN 201220314798U CN 202681838 U CN202681838 U CN 202681838U
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CN
China
Prior art keywords
cup
dust
cyclone
filter
secondary cyclone
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Withdrawn - After Issue
Application number
CN 201220314798
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Chinese (zh)
Inventor
胡海荣
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胡海荣
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Priority to CN 201220314798 priority Critical patent/CN202681838U/en
Application granted granted Critical
Publication of CN202681838U publication Critical patent/CN202681838U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses a cyclone separation dust cup of a dust cleaner. The cyclone separation dust cup is characterized in that a primary filer structure is that an external sleeve and an inner sleeve of a primary filter are arranged at a part below a main air inlet in a cup body, wherein the radial radius of the primary filter is reduced gradually downwards and a sidewall of the primary filter is sleeve-shaped; the external sleeve is provided with air inlets communicated with the main air inlet of the cup body; a dust fall mouth is arranged between the external sleeve and the inner sleeve and communicated with a large-particle dust collection cavity at an external layer of the bottom of the cup body; and a secondary cyclone separator structure is that a cyclone body sleeve is arranged above the primary filter, and secondary cyclone separator units are arranged inside the primary filter, wherein the secondary cyclone separator units are distributed circumferentially and the central axes of the secondary cyclone separator units are inclined outwards; the secondary cyclone separator units are connected in parallel to form a secondary cyclone separator and connects a lower dust mouth with a small-particle dust collection cavity at an inner layer of the bottom of the cup body by a central tube; and outlets of the secondary cyclone separator units are converged by a tertiary filter and connected with a main air outlet of a dust cup cover. The overall structure of the cyclone separation dust cup is reasonable and practical and has the advantages of small air resistance and high separation efficiency.

Description

Cyclone separation dust cup of dust catcher
Technical field
The utility model relates to a kind of cyclone separation dust cup of dust catcher, especially a kind of dirt cup of cyclone separating.
Background technology
The dirt cup that filters usefulness is the critical piece in the dust catcher, and in order better to realize separating of the impurity such as dust and air, existing dust catcher adopts the cyclone dust cup of secondary separation more.The air that contains impurity tangentially enters first order separator, do gyration from top to bottom, in turning course, bulky grain, heavier impurity because of density greater than air, suffered centrifugal force large and collide lose that inertia falls into the below dust-collecting cavity behind the inwall of first order separator and and air separation.Thinner impurity and air enter second level separator, and tiny dust loses dust-collecting cavity and the air separation that inertia falls into the below after colliding the inwall of second level separator.And clean air is discharged in the atmosphere after by filter elements such as sponges.
Be the cyclone separation dust cup that 201110400853.0 Chinese patent discloses a kind of dust catcher such as the patent No., comprise the cup that has tangential first order air inlet on the sidewall, the dirt bowl cover with air outlet and the cyclonic separation body that is arranged in the described cup with described cup coupling, it is characterized in that, described cyclonic separation body comprises main body, the sidewall middle part of described main body is provided with a plurality of second level air inlet, the edge, position, middle and lower part of described main body is connected with cyclonic separation body dust-blocking cover, below described cyclonic separation body dust-blocking cover, be first order dust-collecting cavity between cyclone separator lower wall and the cup, consisted of first order separator; There are a plurality of cyclonic separation cores to be distributed in the cyclonic separation core print seat around the described main body inside upper part, be provided with the air guide member with air inlet duct on the described cyclonic separation core, to import subordinate's separator from described cyclonic separation core air-flow out, the sidewall middle part of described cyclonic separation core offers third level air inlet, the edge, position, middle and lower part of cyclonic separation core is connected with cyclonic separation core dust-blocking cover, below described cyclonic separation core dust-blocking cover, the space is second level dust-collecting cavity between main body inboard and the subordinate's separator, has consisted of second level separator; Described cyclonic separation body center is provided with the center cyclone separator, as third level separator; The bottom of described cyclonic separation body and described center cyclone separator and described cup is fixed; This class cyclone separation dust cup mainly exists defective to be that the one-level whirlwind directly rotates in dirt cup main body, because the dust of deposition and the whirlwind of rotation are on the same surfaces of revolution, the dust of deposition in use also can other back whirlwind take away, enter the second-stage separator from aperture, the separating effect of primary separator is poor, has strengthened greatly the pressure of second-stage separator; The dust fall mouth of secondary cyclone directly facing to the granule dust laying dust chamber at center, so also cause easily the air-flow of dust again to carry, causes separative efficiency to descend;
Granted publication number is the disclosed a kind of dust separation cup of suction cleaner of Chinese patent of CN201219871Y, bowl cover side and bowl cover seat form the air inlet of spirality air inlet duct, bowl cover seat and bowl cover form the air-out road junction, bowl cover seat downside has the one-level dust separator, the dust-separation ring is arranged at one-level dust separator bottom, its inboard, the upper end arranges the cyclone cylinder of spirality air inlet duct, the inner chamber top of cyclone cylinder is provided with the conical secondary dust separator with screen pack, its upper outside is provided with guide ring, and the middle part of one-level dust separator also is provided with guide ring.
Because one-level dust separator and secondary dust separator are in the same cavity volume, there is unavoidably a small amount of not separated air directly to enter the air inlet of secondary dust separator from the one-level dust separator with air-flow, cause the workload of the second-order separation to increase, and screen pack is set directly at the dust-collecting cavity top, cause easily the dust kicked up to enter from the mesh of screen pack, thereby stop up the secondary dust separator, inferior separating effect impacts use.
The utility model content
Technical problem to be solved in the utility model provides the cyclone separation dust cup of dust catcher that a kind of cyclonic separation is effective, dust collection efficiency is high.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of cyclone separation dust cup of dust catcher, comprise the cup that has total air inlet on the sidewall, the dirt bowl cover with total air outlet with described cup coupling, and be arranged on be connected in the described cup grade one filter and secondary cyclone, it is characterized in that:
Described grade one filter structure be the inherent total following position of air inlet of cup be provided with a downward radially radius generally diminishing, sidewall body present the overcoat of the grade one filter of shell-like, in outer being embedded with of grade one filter, be provided with again downwards radially radius generally diminishing, sidewall body present shell-like, have the inner sleeve of the grade one filter of filtering function, the overcoat of grade one filter has air inlet, is communicated with total air inlet of cup; Have the dust fall mouth between the overcoat of grade one filter and the inner sleeve of grade one filter, and the outer field bulky grain control of dust of bottom of cup cavity is communicated with;
Described secondary cyclone structure is provided with the cyclone body cover above grade one filter, the secondary cyclone unit of circle distribution is installed in the cyclone body cover, the secondary cyclone unit composes in parallel secondary cyclone, and makes the lower dirt mouth of secondary cyclone unit by the granule control of dust cavity connection of central tube and bottom of cup internal layer; The outlet of secondary cyclone unit converges by tertiary filter, is communicated with total air outlet of dirt bowl cover.
As improvement, described cyclone body is enclosed within the evagination cavity that outside wall surface is formed with the choke effect.
Preferably, described secondary cyclone number of unit has 3 ~ 9, and preferred 3, its central shaft alignment outer incline and horizontal plane keep 45 ~ 85 ° of angles, preferred 60~80 ° of angles.Can be equally distributed at periphery preferably.
As improvement, described secondary cyclone mainly is included in whirlwind air channel and the cover plate of secondary cyclone inside and the center pipe support composition of secondary cyclone of the secondary cyclone of outside, the whirlwind air channel is distributed with the wind channel of unit, the import of tangential induced air road and cyclone body sleeving inner space are communicated with, and the conical cavity of wind channel outlet and unit is communicated with, the center of the unit on the pipe support of center goes out to manage in the lean-in conical cavity that tiltedly is inserted into unit, thereby consists of secondary cyclone.
Improve, described tertiary filter is arranged on the sponge frame in the dirt bowl cover again, is filled with the sponge of filter effect in the sponge frame.
Improve, described cup includes cup main body and cup base again, and a side of cup main body and cup base is to adopt to be rotationally connected, and the cup main body is connected opposite side the connection buckle is set with cup base.
Improve, a side of described dirt bowl cover and cyclone body cover is to adopt to be rotationally connected again, and the opposite side of dirt bowl cover and cyclone body cover is that Elastic buckle is set.
As improvement, described bottom of cup is provided with the storage barrel with the umbrella shape ring set, bottom of cup is divided into the granule control of dust cavity of outer field bulky grain control of dust cavity and internal layer, and the inner sleeve that makes grade one filter is supported on the umbrella shape ring set, and central tube is supported in the upper port slot of storage barrel.Described dust fall mouth adopts square.
At last, the jacket and inner sleeve main body of described grade one filter is the tapered sleeve shape.
Compared with prior art, the utility model has the advantage of:
1. the grade one filter outside has two-layer, skin is dirt cup main body, nexine is the overcoat of grade one filter, this is different with other similar products, other similar products are that the one-level whirlwind directly rotates in dirt cup main body, and this product one-level whirlwind is to rotate between the jacket and inner sleeve of grade one filter, because one section space is arranged in the middle of jacket and inner sleeve, dust is after rotating through cavity high speed between the jacket and inner sleeve, deposit in the bulky grain control of dust cavity, because the overcoat of dirt cup main body and grade one filter is not the identical surfaces of revolution, the dust that deposits to bulky grain control of dust cavity just is difficult to return between the jacket and inner sleeve go in the cavity, the dust that enters so again in the secondary cyclone has just greatly reduced, like this with regard to Effective Raise the separative efficiency of grade one filter, and other like product since the dust of deposition and the whirlwind of rotation on the same surfaces of revolution, the dust of deposition in use also can other back whirlwind take away, enter the second-stage separator from aperture, the separating effect of primary separator is poor, has strengthened greatly the pressure of second-stage separator; Have square opening as the dust fall mouth between the jacket and inner sleeve of grade one filter, this hole is for after larger rubbish inspiration dirt cup is arranged, by the rotation after from then on the hole fall in the bulky grain control of dust cavity, prevent that larger rubbish is stuck in the dirt cup grade one filter;
2. secondary cyclone is comprised of a plurality of cone separators.This grade separator has adopted one or more tangent air inlets, guarantees wind energy along tangentially the entering in the secondary cyclone of conical camber, guarantees simultaneously with the wind sectional area enough greatly, prevents from causing efficient that larger decline is arranged owing to the ventilation interfacial area is too small; The granule control of dust cavity of secondary cyclone separates fully with the bulky grain control of dust cavity of primary separator, demountable structure is adopted in the below of control of dust cavity, this structure can be taken the central tube of grade one filter and the lower chamber of second-stage separator apart together, can clear up very easily the rubbish that pile up the inside;
3. compact overall structure is reasonable, and air resistance is little, and separative efficiency is high, and assembling is used easily.
Description of drawings
Fig. 1 is the cutaway view of dirt cup of the present utility model;
Fig. 2 is decomposition texture schematic diagram of the present utility model;
The specific embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Anticipate as shown in the figure, a kind of cyclone separation dust cup of dust catcher, it includes cup 1, the dirt bowl cover, the main members such as grade one filter 2 and secondary cyclone 3, wherein cup 1 includes cup main body 1.1 and cup base 1.2, one side of cup main body 1.1 and cup base 1.2 is that employing is pivotally connected, and the opposite side that cup main body 1.1 is connected with cup base arranges the connection buckle, the button 1.3 of cup base can be snapped onto on the flange 1.4 of cup bottom part body evagination, above flange, cup main body outer surface is provided with press button 1.5 and button 1.3 cooperates, be provided with the sealing ring 1.6 of annular seal groove and liner on the binding face of cup base 1.2 and cup main body 1.1, be fixed with suction inlet seat 1.7 on the sidewall of cup 1, consisted of total air inlet, be provided with in the cup 1 be connected grade one filter 2 and secondary cyclone 3.
Wherein, grade one filter 2 structures mainly include the inner sleeve 2.2 of overcoat 2.1 and the grade one filter of grade one filter, the overcoat 2.1 of grade one filter is in the cup 1 at total air inlet and following position thereof, radially radius is diminishing downwards generally, sidewall body presents the tapered sleeve shape, the overcoat 2.1 of grade one filter has air inlet 2.3, be communicated with total air inlet of cup, the inner sleeve 2.2 of grade one filter is within the overcoat 2.1 of grade one filter, also be generally downwards radially radius dwindle gradually, sidewall body presents the tapered sleeve shape, and has a filtering function, be provided with filter bores, consisted of the filtration channel of grade one filter 2 between the two, has simultaneously the cyclonic separation effect, the inner sleeve 2.2 of grade one filter is supported on the umbrella shape ring set 4.1 of storage barrel 4, storage barrel 4 is fixed on cup base 1.2 middle parts by sealing ring 4.2, cup 1 bottom is divided into the granule control of dust cavity 1.9 of outer field bulky grain control of dust cavity 1.8 and internal layer, and, have square dust fall mouth 2.4 between the overcoat 2.1 of grade one filter and the inner sleeve 2.2 of grade one filter, and the outer field bulky grain control of dust of bottom of cup cavity 1.8 is communicated with;
Secondary cyclone 3 structures cup 1 above grade one filter 2 connects and fixes cyclone body cover 3.1, cyclone body cover 3.1 is formed with the choke effect in outside wall surface, present the substantially evagination cavity 3.2 of petal shape, cyclone body overlaps the 3.1 interior secondary cyclone unit 3.3 of having installed, secondary cyclone unit 3.3 is equally distributed on periphery, number is 3, the central axis of secondary cyclone unit 3.3 tilts upwardly and outwardly, central axis is outward-dipping to keep 60 ~ 80 ° of angles with horizontal plane, the lower dirt mouth 3.4 of secondary cyclone unit 3.3 is communicated with by the granule control of dust cavity 1.9 of central tube 3.5 and bottom of cup internal layer, central tube 3.5 is supported in the upper port slot of storage barrel 4,3.3 outlets of secondary cyclone unit converge by tertiary filter 5, be communicated with total air outlet of dirt bowl cover 6, formed secondary cyclone 3 thereby these secondary cyclone unit 3.3 are together in parallel;
Secondary cyclone 3 mainly is included in the whirlwind air channel 3.6 of the secondary cyclone of outside, the cover plate 3.7 of secondary cyclone inside and the center pipe support of secondary cyclone 3.8 form, the circumferential side wall in whirlwind air channel 3.6 is installed on the inner sleeve 2.2 of grade one filter by sealing ring 3.14, on periphery, distribute the equably wind channel 3.9 of 3 secondary cyclone unit of whirlwind air channel 3.6, each tangential induced air road 3.9 imports and cyclone body overlap 3.1 interior spaces and are communicated with, the conical cavity 3.10 of each wind channel 3.9 outlets and each secondary cyclone unit 3.3 is communicated with, center pipe support 3.8 covers on whirlwind air channel 3.6 by sealing gasket 3.13 and cover plate 3.7, the center of the secondary cyclone unit on the center pipe support 3.8 is gone out in the lean-in conical cavity 3.10 that tiltedly is inserted into unit of pipe 3.11, thereby consist of secondary cyclone unit 3.3, these secondary cyclone unit 3.3 are by having composed in parallel secondary cyclone 3.
Tertiary filter 5 just is arranged on the sponge frame 5.1 in the dirt bowl cover, is filled with the sponge of filter effect in the sponge frame 5.1, thereby plays filter effect, and the air-flow through the secondary cyclone unit is converged.
One side of the dirt bowl cover 6 with total air outlet of cup 1 coupling and cyclone body cover 3.1 also is that employing is pivotally connected, the opposite side of dirt bowl cover 6 and cyclone body cover 3.1 is that Elastic buckle is set, and the Elastic buckle 6.1 on the dirt bowl cover 6 can be snapped onto on the bayonet socket 3.12 of cyclone body cover 3.Dirt bowl cover 6 is with being easy to carry and pushing away next handle 6.2.
Also be provided with safety valve 7 in the dust kicked up by somebody walking in front cup.
Its operation principle is such: enter with the air of the dust total air inlet from the dirt cup, after entering, rotate in grade one filter 2 cavity high speeds, the air of High Rotation Speed volume behind the cavity sharply enlarges, rotating speed slows down, thick dust just deposits to the bottom of cavity, by the dust fall mouth, drops in the outer field bulky grain control of dust of the bottom of cup cavity 1.8; Air through initial gross separation enters into transitional cavity from filtering aperture, then enter the conical cavity of secondary cyclone unit 3.3 from secondary cyclone wind channel 3.9, the air that enters rotates in taper conical cavity high speed, volume sharply enlarged after the air of High Rotation Speed entered in the conical cavity, rotating speed slows down, and thin dust just deposits to the bottom of granule control of dust cavity 1.9; Cleaner air after separating is after the center of secondary cyclone unit goes out pipe 3.11 and export away, and again through the filtration of tertiary filter 5 with converge, last clean air is from the total air outlet discharge of dirt cup.
The above only is preferred embodiment of the present utility model; should be understood that; for the ordinary skill in the art; do not breaking away under the principle prerequisite of the present utility model; can also make various deformation and improvement; cross section such as tapered sleeve wall in present embodiment is straight line, it can be modified as a certain curve, all should be considered as protection domain of the present utility model.

Claims (10)

1. cyclone separation dust cup of dust catcher, comprise the cup that has total air inlet on the sidewall, with the dirt bowl cover with total air outlet of described cup coupling, and be arranged on be connected in the described cup grade one filter and secondary cyclone, it is characterized in that:
Described grade one filter structure be the inherent total following position of air inlet of cup be provided with a downward radially radius generally diminishing, sidewall body present the overcoat of the grade one filter of shell-like, in outer being embedded with of grade one filter, be provided with again downwards radially radius generally diminishing, sidewall body present shell-like, have the inner sleeve of the grade one filter of filtering function, the overcoat of grade one filter has air inlet, is communicated with total air inlet of cup; Have the dust fall mouth between the overcoat of grade one filter and the inner sleeve of grade one filter, and the outer field bulky grain control of dust of bottom of cup cavity is communicated with;
Described secondary cyclone structure is provided with the cyclone body cover above grade one filter, the secondary cyclone unit of circle distribution is installed in the cyclone body cover, the secondary cyclone unit composes in parallel secondary cyclone, and makes the lower dirt mouth of secondary cyclone unit by the granule control of dust cavity connection of central tube and bottom of cup internal layer; The outlet of secondary cyclone unit converges by tertiary filter, is communicated with total air outlet of dirt bowl cover.
2. cyclone separation dust cup of dust catcher according to claim 1 is characterized in that described cyclone body is enclosed within the evagination cavity that outside wall surface is formed with the choke effect.
3. cyclone separation dust cup of dust catcher according to claim 1 is characterized in that described secondary cyclone number of unit has 3 ~ 9, and its central shaft alignment outer incline and horizontal plane keep 45 ~ 85 ° of angles.
4. cyclone separation dust cup of dust catcher according to claim 1, it is characterized in that described secondary cyclone mainly is included in whirlwind air channel and the cover plate of secondary cyclone inside and the center pipe support composition of secondary cyclone of the secondary cyclone of outside, the whirlwind air channel is distributed with the wind channel of unit, the import of tangential induced air road and cyclone body sleeving inner space are communicated with, and the wind channel outlet is communicated with the conical cavity of unit, the center of the unit on the pipe support of center goes out to manage in the lean-in conical cavity that tiltedly is inserted into unit, thereby consists of secondary cyclone.
5. cyclone separation dust cup of dust catcher according to claim 1 is characterized in that described tertiary filter is arranged on the sponge frame in the dirt bowl cover, is filled with the sponge of filter effect in the sponge frame.
6. cyclone separation dust cup of dust catcher according to claim 1, it is characterized in that described cup includes cup main body and cup base, one side of cup main body and cup base is to adopt to be rotationally connected, and the cup main body is connected opposite side the connection buckle is set with cup base.
7. cyclone separation dust cup of dust catcher according to claim 1 is characterized in that the side that described dirt bowl cover and cyclone body overlap is to adopt to be rotationally connected, and the opposite side of dirt bowl cover and cyclone body cover is that Elastic buckle is set.
8. cyclone separation dust cup of dust catcher according to claim 1, it is characterized in that described bottom of cup is provided with the storage barrel with the umbrella shape ring set, bottom of cup is divided into the granule control of dust cavity of outer field bulky grain control of dust cavity and internal layer, and the inner sleeve that makes grade one filter is supported on the umbrella shape ring set, and central tube is supported in the upper port slot of storage barrel.
9. cyclone separation dust cup of dust catcher according to claim 1 is characterized in that described dust fall mouth employing is square.
10. cyclone separation dust cup of dust catcher according to claim 1, the jacket and inner sleeve main body that it is characterized in that described grade one filter is the tapered sleeve shape.
CN 201220314798 2012-07-02 2012-07-02 Cyclone separation dust cup of dust cleaner Withdrawn - After Issue CN202681838U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220314798 CN202681838U (en) 2012-07-02 2012-07-02 Cyclone separation dust cup of dust cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220314798 CN202681838U (en) 2012-07-02 2012-07-02 Cyclone separation dust cup of dust cleaner

Publications (1)

Publication Number Publication Date
CN202681838U true CN202681838U (en) 2013-01-23

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CN 201220314798 Withdrawn - After Issue CN202681838U (en) 2012-07-02 2012-07-02 Cyclone separation dust cup of dust cleaner

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103405195A (en) * 2013-07-16 2013-11-27 宁波锦隆电器有限公司 Dust collection device for dust collector
CN103431810A (en) * 2013-08-13 2013-12-11 胡海荣 Cyclone separation type dust cup
CN103445723A (en) * 2013-08-31 2013-12-18 卓力电器集团有限公司 Three-stage cyclone separation dust collector
CN103494583A (en) * 2013-09-30 2014-01-08 苏州德震电器有限公司 Cyclonic dust collector
CN103519749A (en) * 2012-07-02 2014-01-22 胡海荣 Cyclone separation dust cup of dust collector
CN104367271A (en) * 2014-10-31 2015-02-25 珠海格力电器股份有限公司 Gas-dust separating unit and dust collector
CN104367272A (en) * 2014-10-31 2015-02-25 珠海格力电器股份有限公司 Gas-dust separating unit and dust collector
CN104840152A (en) * 2015-06-09 2015-08-19 莱克电气股份有限公司 Handheld dust collector with spiral two-level tornado dust-air separation structure
CN111493738A (en) * 2018-08-30 2020-08-07 三星电子株式会社 Vacuum cleaner

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103519749A (en) * 2012-07-02 2014-01-22 胡海荣 Cyclone separation dust cup of dust collector
CN103519749B (en) * 2012-07-02 2016-05-11 胡海荣 Cyclone separation dust cup of dust catcher
CN103405195A (en) * 2013-07-16 2013-11-27 宁波锦隆电器有限公司 Dust collection device for dust collector
CN103431810B (en) * 2013-08-13 2016-01-20 胡海荣 A kind of Seperated dust cup of whirlwind
CN103431810A (en) * 2013-08-13 2013-12-11 胡海荣 Cyclone separation type dust cup
CN103445723A (en) * 2013-08-31 2013-12-18 卓力电器集团有限公司 Three-stage cyclone separation dust collector
CN103494583A (en) * 2013-09-30 2014-01-08 苏州德震电器有限公司 Cyclonic dust collector
CN103494583B (en) * 2013-09-30 2017-01-11 苏州德震电器有限公司 Cyclonic dust collector
CN104367272A (en) * 2014-10-31 2015-02-25 珠海格力电器股份有限公司 Gas-dust separating unit and dust collector
CN104367271A (en) * 2014-10-31 2015-02-25 珠海格力电器股份有限公司 Gas-dust separating unit and dust collector
CN104840152A (en) * 2015-06-09 2015-08-19 莱克电气股份有限公司 Handheld dust collector with spiral two-level tornado dust-air separation structure
US10568479B2 (en) 2015-06-09 2020-02-25 Kingclean Electric Co., Ltd. Handheld dust collector having spiral two-stage tornado dust-air separation structure
CN111493738A (en) * 2018-08-30 2020-08-07 三星电子株式会社 Vacuum cleaner

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AV01 Patent right actively abandoned

Granted publication date: 20130123

Effective date of abandoning: 20160511

C25 Abandonment of patent right or utility model to avoid double patenting