CN203263285U - Swirler, cyclone separation device provided with swirler and vacuum cleaner provided with swirler - Google Patents
Swirler, cyclone separation device provided with swirler and vacuum cleaner provided with swirler Download PDFInfo
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- CN203263285U CN203263285U CN 201320184926 CN201320184926U CN203263285U CN 203263285 U CN203263285 U CN 203263285U CN 201320184926 CN201320184926 CN 201320184926 CN 201320184926 U CN201320184926 U CN 201320184926U CN 203263285 U CN203263285 U CN 203263285U
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Abstract
The utility model discloses a swirler, a cyclone separation device provided with the swirler and a vacuum cleaner provided with the swirler. The swirler comprises a shell body and a spiral surface section, wherein a separation space is defined inside the shell body, an air inlet and a dust dumping port are formed in the upper portion and the bottom of the shell body respectively, the spiral surface section is connected with the shell body, one end of the spiral surface section is connected with a lateral wall of the air inlet, and an air inlet passage is jointly defined by the spiral surface section and a shell body wall surface corresponding to the spiral surface section. According to the swirler, the spiral surface section is arranged, the spiral air inlet passage is jointly defined by the spiral surface section and the shell body, so that air with dust generates a spiral motion trend in advance under the guide of the air inlet passage, the air with dust newly entering the shell body can rapidly join in the air flow which has moved spirally inside the shell body instead of impacting the air flow to generate turbulent flow, and the separation efficiency of the dust is greatly improved.
Description
Technical field
This area relates to appliance field, especially relates to a kind of cyclone and cyclone separator, dust catcher with it.
Background technology
Traditional cyclone separator comprises a plurality of cyclones, cyclone is small top and big bottom reverse taper, the tangential air intake passage that is provided with of cyclone outer wall upside, cyclone lower end is provided with and gets rid of the ash mouth, dusty gas produces screw under the guiding of cone inwall after air intake passage enters cone inside, and by centrifugal force with dust separation out.Because the dusty gas that newly enters from air intake passage in cone must progressively produce screw under the guiding of cone inwall, so be difficult to incorporate at once in the air-flow of spiral running in cone, and the spiral air flow in the dusty gas that newly enters and cone bumps, form turbulent flow, hinder the separation of dust, greatly reduce the separative efficiency of dust.
The utility model content
The utility model is intended to solve at least one of technical problem that exists in prior art.For this reason, a purpose of the present utility model is to propose the high cyclone of separative efficiency of a kind of difficult formation turbulent flow and dust.
Another purpose of the present utility model is to propose a kind of cyclone separator with above-mentioned cyclone.
Another purpose of the present utility model is to propose a kind of dust catcher with above-mentioned cyclone separator.
Cyclone according to the utility model first aspect embodiment comprises: housing, and described enclosure interior limits separated space, and the top of described housing and bottom are formed with respectively air inlet and get rid of the ash mouth; With the helicoid section, described helicoid section is connected on described housing and an end of described helicoid section is connected with a sidewall of described air inlet, and wherein said helicoid section and the described shell wall side corresponding with described helicoid section limit air intake passage jointly.
Cyclone according to the utility model embodiment, by the helicoid section is set, helicoid section and housing limit spiral helicine air intake passage jointly, make dusty gas produce in advance the trend of screw under the guiding of this air intake passage, thereby make the dusty gas that newly enters in housing can incorporate rapidly in the air-flow of spiral running in housing and can not bump and form turbulent flow, greatly improved the separative efficiency of dust.
In addition, also can have following additional technical feature according to cyclone of the present utility model:
According to an embodiment of the present utility model, described helicoid section is extended towards the direction away from described housing center from described air inlet, and the outside wall surface of described helicoid section and the described housing corresponding with described helicoid section limits air intake passage jointly.Thus, because the size of the air intake passage porch of this cyclone is larger, thereby the air flow inlet circular rector is large, and the rotary speed of interior vortex vortex core is corresponding increasing also, can realize like this in the situation that shell dimension is constant, increased the treating capacity of dust gas.
Alternatively, the angle between the two ends on described helicoid section cross section is 90 °～360 °.Thus, when the angle between the two ends on helicoid section cross section was larger, the trend of the screw that dusty gas produces under the guiding of air intake passage can trend towards the air-flow of the screw in housing gradually, thereby can improve the separative efficiency of dust.
According to an embodiment of the present utility model, the cross-sectional area of described housing first equates from top to bottom, after reduce gradually.Thus, the convenient dust of separating of collecting.
Particularly, described housing comprises: epimere, described epimere form revolving body and cross-sectional area from top to bottom equates; Be positioned at the stage casing of epimere below, described stage casing forms revolving body and cross-sectional area from top to bottom reduces gradually; With the hypomere that is positioned at stage casing below, the cross section of described hypomere form circle or oval and from top to bottom the center of circle gradually to a lateral deviation from.Thus, the dust of separating had guide effect.
Further, the bottom of described helicoid section is provided with the base plate that extends towards housing direction.Thus, by base plate is set, dusty gas can enter fully in housing and the situation that the part dusty gas spills from the bottom between helicoid section and housing can not occur via air intake passage.
According to an embodiment of the present utility model, be formed with a plurality of air inlets on described housing and described a plurality of air inlet each interval is arranged.Thus, by a plurality of air inlets are set, the separative efficiency of dust and the treating capacity of gas have further been improved.
Alternatively, described helicoid section and described housing are one-body molded.Thus, processing is simple and cost is low.
According to the cyclone separator of the utility model second aspect embodiment, comprise the cyclone according to the above-mentioned first aspect of the utility model.
According to the cyclone separator of the utility model embodiment, by the cyclone of above-described embodiment is set, not only improved the separative efficiency of dust, and can increase the treating capacity of dusty gas.
Alternatively, described cyclone is at least one, and is arranged in parallel between at least one described cyclone.Thus, by a plurality of cyclones are set, further improve the separative efficiency of dust, and improved the treating capacity of dust.
According to the dust catcher of the utility model third aspect embodiment, comprise the cyclone separator according to the above-mentioned second aspect of the utility model.
According to the dust catcher of the utility model embodiment, by the cyclone separator of above-described embodiment is set, improved the separative efficiency of dust, thereby improved the operating efficiency of dust catcher.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic diagram according to the cyclone of an embodiment of the utility model;
Fig. 2 is the profile of the cyclone shown in Fig. 1;
Fig. 3 is the top view of the cyclone shown in Fig. 1;
Fig. 4 is the side view of the cyclone shown in Fig. 1;
Fig. 5 is the schematic diagram according to the cyclone of another embodiment of the utility model;
Fig. 6 is the profile of the cyclone shown in Fig. 5;
Fig. 7 is the top view of the cyclone shown in Fig. 5;
Fig. 8 is the side view of the cyclone shown in Fig. 5;
Fig. 9 is the schematic diagram according to the cyclone of another embodiment of the utility model;
Figure 10 is the profile of the cyclone shown in Fig. 9;
Figure 11 is the top view of the cyclone shown in Fig. 9;
Figure 12 is the side view of the cyclone shown in Fig. 9;
Figure 13 has the schematic diagram of the cyclone of an embodiment according to the utility model;
Figure 14 is the profile of the cyclone shown in Figure 13;
Figure 15 is the top view of the cyclone shown in Figure 13;
Figure 16 is the side view of the cyclone shown in Figure 13;
Figure 17 is the schematic diagram according to the cyclone separator of an embodiment of the utility model;
Figure 18 is the cutaway view of the cyclone separator shown in Figure 17.
Description of reference numerals:
100: cyclone;
1: housing; 11: separated space; 12: air inlet; 13: get rid of the ash mouth;
14: epimere; 15: the stage casing; 16: hypomere;
2: the helicoid section; 3: air intake passage; 4: base plate;
200: cyclone separator.
The specific embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
in description of the present utility model, it will be appreciated that, term " " center ", " vertically ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the present utility model, need to prove, unless clear and definite regulation and restriction are separately arranged, term " installation ", " being connected ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be directly to be connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Below with reference to the cyclone 100 of Fig. 1-Figure 18 description according to the utility model embodiment, this cyclone 100 can be used in dust catcher.In description below the application, be used in dust catcher describing as example take cyclone 100.Certainly, those skilled in that art are appreciated that this cyclone 100 is used for dust catcher and only describes as example, and are not limited to this, that is to say, also can be used in the electrical equipment of other types according to cyclone 100 of the present utility model, such as deduster etc.
As shown in Figure 1, the cyclone 100 according to the utility model first aspect embodiment comprises: housing 1 and helicoid section 2.Housing 1 inside limits separated space 11, and the top of housing 1 and bottom are formed with respectively air inlet 12 and get rid of ash mouth 13.For example in the example of Fig. 1 and Fig. 2, limit the separated space 11 of hollow in housing 1, the bottom of housing 1 is formed with along the grey mouth 13 of getting rid of of the circle that vertically runs through it, is formed with the air inlet 12 that radially runs through it on the upper side wall of housing 1.It will be appreciated that, get rid of ash mouthfuls 13 and can also be oval, Long Circle or greater than the polygon on three limits etc.
Dusty gas can enter separated space 11 in housing 1 by air inlet 12 via the air intake passage 3 on housing 1 top, produce screw under the guiding of housing 1 inwall, and by centrifugal force with the dust separation in dusty gas out, the dust of separating is derived by the ash mouth 13 that gets rid of of housing 1 bottom.
In one of them example of the present utility model, helicoid section 2 is one-body molded with housing 1.That is to say, helicoid section 2 and the whole processing and manufacturing of housing 1, helicoid section 2 is the part of housing 1 at this moment, processing is simple and cost is low.Certainly, the utility model is not limited to this, in other examples of the present utility model, helicoid section 2 and housing 1 are integral by being welded to connect, this moment, helicoid section 2 and housing 1 were respectively two separate parts, and respectively independent processing and manufacturing, then helicoid section 2 and housing 1 are by the mode of welding for example spot welding structure that forms as one.
Cyclone 100 according to the utility model embodiment, by helicoid section 2 is set, helicoid section 2 limits spiral helicine air intake passage 3 jointly with housing 1, make dusty gas produce in advance the trend of screw under the guiding of this air intake passage 3, thereby make the dusty gas that newly enters in housing 1 can incorporate rapidly in the air-flow of spiral running in housing 1 and can not bump and form turbulent flow, greatly improved the separative efficiency of dust.
In an embodiment of the present utility model, helicoid section 2 is extended towards the direction away from housing 1 center from air inlet 12, and the outside wall surface of helicoid section 2 and the housing 1 corresponding with helicoid section 2 limits air intake passage 3 jointly.For example in the example of Fig. 1 and Fig. 3, helicoid section 2 is extended towards the direction of another sidewall of air inlet 12 from a sidewall of air inlet 12, and helicoid section 2 is gradually away from the center of housing 1, and the outside wall surface of the internal face of helicoid section 2 and the housing 1 corresponding with helicoid section 2 limits air intake passage 3 jointly.Because the size of air intake passage 3 porch of this cyclone 100 is larger, thereby the air flow inlet circular rector is large, and the rotary speed of interior vortex vortex core is corresponding increasing also, can realize like this in the situation that housing 1 size constancy, has increased the treating capacity of dusty gas.
Certainly, the utility model is not limited to this, and in another embodiment of the present utility model, helicoid section 2 also can be from the direction extension (scheming not shown) of air inlet 12 towards contiguous housing 1 center.That is to say, helicoid section 2 is extended towards the direction of another sidewall of air inlet 12 from a sidewall of air inlet 12, and helicoid section 2 is the center of contiguous housing 1 gradually, and the internal face of the outside wall surface of helicoid section 2 and the housing 1 corresponding with helicoid section 2 limits air intake passage 3 jointly.
Further, the outside wall surface of the housing 1 corresponding with helicoid section 2 and the internal face of helicoid section 2 be arranged in parallel.As Fig. 3, Fig. 7 and shown in Figure 11, the outer surface of housing 1 of another sidewall that surpasses air inlet 12 is parallel with the inner surface of the helicoid section 2 corresponding with it, thus can guarantee from the dusty gas that air intake passage 3 enters can incorporate rapidly in the air-flow of spiral running in housing 1 and can not bump form turbulent.
Further, the bottom of helicoid section 2 is provided with the base plate 4 that extends towards housing 1 direction.That is to say, helicoid section 2 upwards is spaced from each other in the footpath along housing 1 with housing 1, distance dependent between the bottom of the shape of base plate 4 and helicoid section 2 and housing 1, particularly, the bottom of base plate 4 can be extended towards the direction of housing 1 along the radial level of housing 1.For example in the example of Fig. 5, distance between helicoid section 2 and housing 1 center is greater than the distance between housing 1 and its center, in other words, helicoid section 2 is positioned at the outside of housing 1 outer side surface, base plate 4 extends inwardly to the outside wall surface of housing 1 from the bottom of helicoid section 2 along the radial level of housing 1, like this, dusty gas can enter fully in housing 1 and the situation that the part dusty gas spills from the bottom between helicoid section 2 and housing 1 can not occur via air intake passage 3.Certainly, the utility model is not limited to this, in other examples of the present utility model, distance between helicoid section 2 and housing 1 center is less than the distance between housing 1 and its center, this moment, helicoid section 2 was positioned at the inboard of housing 1 interior sidewall surface, and base plate 4 is from the bottom of helicoid section 2 along the internal face that extends radially outwardly to housing 1 (scheming not shown) of housing 1.
In one of them example of the present utility model, base plate 4, spiral panel and housing 1 are one-body molded.In other words, base plate 4, spiral panel and the whole processing and manufacturing of housing 1, base plate 4, spiral panel are the part of housing 1 at this moment.Certainly, the utility model is not limited to this, in other examples of the present utility model, base plate 4, spiral panel and housing 1 also can link into an integrated entity by modes such as welding, that is to say, base plate 4, spiral panel and housing 1 are respectively three separate parts, and respectively independent processing and manufacturing, and then base plate 4, spiral panel and housing 1 are by the mode of welding for example spot welding structure that forms as one.
In an embodiment of the present utility model, the cross-sectional area of housing 1 first equates from top to bottom, after reduce gradually, as Fig. 2, Fig. 4, Fig. 6, Fig. 8, Figure 10 and shown in Figure 12, like this, after dusty gas enters from the air intake passage 3 on housing 1 top, the motion of spinning of separated space 11 in housing 1, dusty gas is in the process that moves downward while the motion of spinning, dust can be separated from air-flow gradually, the cross-sectional area that gets rid of ash mouth 13 is less, thus the convenient dust of separating of collecting.
Particularly, housing 1 comprises epimere 14, stage casing 15 and hypomere 16.Epimere 14 forms revolving body, and epimere 14 cross-sectional area from top to bottom equates.Stage casing 15 is positioned at the below of epimere 14, and stage casing 15 forms revolving body, and stage casing 15 cross-sectional area from top to bottom reduces gradually.Hypomere 16 is positioned at the below in stage casing 15, and the cross section of hypomere 16 forms circle or ellipse, and hypomere 16 from top to bottom the center of circle gradually to a lateral deviation from.For example in the example of Fig. 2, Fig. 6 and Figure 10, be epimere 14, stage casing 15 and the hypomere 16 that is connected successively from top to bottom, epimere 14 roughly is annular, stage casing 15 roughly is the taper shape of hollow, the coaxial setting of epimere 14 and stage casing 15, hypomere 16 cross section from top to bottom forms circle or ellipse, and the circular or oval-shaped center of circle gradually towards away from the lateral deviation at epimere 14 and 15 centers, stage casing from.Thus, the dust of separating had guide effect.Certainly, the utility model is not limited to this, and in other examples of the present utility model, the cross section in epimere 14 and stage casing 15 also can form respectively ellipse, Long Circle or greater than triangle etc.
Alternatively, the angle between the two ends on helicoid section 2 cross sections is 90 °～360 °.For example in the example of Fig. 1-Fig. 4, take the center in epimere 14 and stage casing 15 as the center of circle, the angle between the two ends of helicoid section 2 development length direction in the horizontal is 90 °, the quadrant that this moment, helicoid section 2 occupied on the plane.In the example of Fig. 5-Fig. 8, the center in epimere 14 and stage casing 15 is the center of circle, and the angle between the two ends of helicoid section 2 development length direction in the horizontal is 180 °, and helicoid section 2 occupies two quadrants adjacent on the plane at this moment.In the example of Fig. 9-Figure 12, the center in epimere 14 and stage casing 15 is the center of circle, and the angle between the two ends of helicoid section 2 development length direction in the horizontal is 270 °, three quadrants that this moment, helicoid section 2 occupied on the plane.In the example of Figure 13-Figure 16, the center in epimere 14 and stage casing 15 is the center of circle, and the angle between the two ends of helicoid section 2 development length direction in the horizontal is 360 °, four quadrants that this moment, helicoid section 2 occupied on the plane.Like this, when the angle between the two ends on helicoid section 2 cross sections was larger, the trend of the screw that dusty gas produces under the guiding of air intake passage 3 can trend towards the air-flow of the screw in housing 1 gradually, thereby can improve the separative efficiency of dust.
In an embodiment of the present utility model, be formed with a plurality of air inlets 12 on housing 1 and a plurality of air inlet 12 each intervals are arranged.For example in the example of Figure 17, the top of the housing 1 of the cyclone 100 in the middle of being positioned at is formed with respectively three air inlets that are spaced apart from each other 12, alternatively, the week that air inlet 12 is evenly distributed in housing 1 makes progress, and the angle between two at this moment adjacent air inlets 12 is 120 °.Thus, by a plurality of air inlets 12 are set, the separative efficiency of dust and the treating capacity of gas have further been improved.
As shown in Figure 17 and Figure 18, according to the cyclone separator 200 of the utility model second aspect embodiment, comprise the cyclone 100 according to the above-mentioned first aspect of the utility model.
According to the cyclone separator 200 of the utility model embodiment, by the cyclone 100 that above-described embodiment is set, not only improved the separative efficiency of dust, and can increase the treating capacity of dusty gas.
Alternatively, cyclone 100 is at least one, and is arranged in parallel between at least one cyclone 100.Ten cyclones 100 for example have been shown in the example of Figure 17, and in the middle of one of them cyclone 100 was positioned at, other nine cyclones 100 were respectively along the circumferential array of middle cyclone 100 and setting abreast.Here, so-called " be arrangeding in parallel " refers to the epimere 14 of ten cyclones 100 and the axis in stage casing 15 is parallel to each other.Thus, by a plurality of cyclones 100 are set, further improve the separative efficiency of dust, and improved the treating capacity of dust.It will be appreciated that, the quantity of cyclone 100 can be according to the actual requirement setting, to satisfy better actual requirement.
Dust catcher (scheming not shown) according to the utility model third aspect embodiment comprises the cyclone separator 200 according to the above-mentioned second aspect of the utility model.
According to the dust catcher of the utility model embodiment, the cyclone separator 200 by above-described embodiment is set has improved the separative efficiency of dust, thereby has improved the operating efficiency of dust catcher.
Be all known to those skilled in the art according to other formations and the operation of the dust catcher of the utility model embodiment, be not described in detail here.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (11)
1. a cyclone, is characterized in that, comprising:
Housing, described enclosure interior limits separated space, and the top of described housing and bottom are formed with respectively air inlet and get rid of the ash mouth; With
Helicoid section, described helicoid section are connected on described housing and an end of described helicoid section is connected with a sidewall of described air inlet, and wherein said helicoid section and the described shell wall side corresponding with described helicoid section limit air intake passage jointly.
2. cyclone according to claim 1, it is characterized in that, described helicoid section is extended towards the direction away from described housing center from described air inlet, and the outside wall surface of described helicoid section and the described housing corresponding with described helicoid section limits air intake passage jointly.
3. cyclone according to claim 2, is characterized in that, the angle between the two ends on described helicoid section cross section is 90 °～360 °.
4. cyclone according to claim 1, is characterized in that, the cross-sectional area of described housing first equates from top to bottom, after reduce gradually.
5. cyclone according to claim 4, is characterized in that, described housing comprises:
Epimere, described epimere form revolving body and cross-sectional area from top to bottom equates;
Be positioned at the stage casing of epimere below, described stage casing forms revolving body and cross-sectional area from top to bottom reduces gradually; With
Be positioned at the hypomere of stage casing below, the cross section of described hypomere form circle or oval and from top to bottom the center of circle gradually to a lateral deviation from.
6. cyclone according to claim 1, is characterized in that, the bottom of described helicoid section is provided with the base plate that extends towards housing direction.
7. cyclone according to claim 1, is characterized in that, is formed with a plurality of air inlets on described housing and described a plurality of air inlet each interval is arranged.
8. the described cyclone of any one according to claim 1-7, is characterized in that, described helicoid section and described housing are one-body molded.
9. a cyclone separator, is characterized in that, comprises cyclone as described in any one in claim 1-8.
10. cyclone separator according to claim 9, is characterized in that, described cyclone is at least one, and be arranged in parallel between at least one described cyclone.
11. a dust catcher is characterized in that, comprises cyclone separator as described in claim 9 or 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184926 CN203263285U (en) | 2013-04-12 | 2013-04-12 | Swirler, cyclone separation device provided with swirler and vacuum cleaner provided with swirler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184926 CN203263285U (en) | 2013-04-12 | 2013-04-12 | Swirler, cyclone separation device provided with swirler and vacuum cleaner provided with swirler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203263285U true CN203263285U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320184926 Expired - Fee Related CN203263285U (en) | 2013-04-12 | 2013-04-12 | Swirler, cyclone separation device provided with swirler and vacuum cleaner provided with swirler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203263285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095583A (en) * | 2013-04-12 | 2014-10-15 | 江苏美的春花电器股份有限公司 | Cyclone device, cyclone separating device with cyclone device and dust collector with cyclone separating device |
| CN109876576A (en) * | 2019-03-08 | 2019-06-14 | 深圳烟草工业有限责任公司 | A kind of dust-extraction unit |
-
2013
- 2013-04-12 CN CN 201320184926 patent/CN203263285U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095583A (en) * | 2013-04-12 | 2014-10-15 | 江苏美的春花电器股份有限公司 | Cyclone device, cyclone separating device with cyclone device and dust collector with cyclone separating device |
| CN109876576A (en) * | 2019-03-08 | 2019-06-14 | 深圳烟草工业有限责任公司 | A kind of dust-extraction unit |
| CN109876576B (en) * | 2019-03-08 | 2024-05-07 | 深圳烟草工业有限责任公司 | Dust removing device |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: No. 39 Cao Hu road Xiangcheng Economic Development Zone in Suzhou City, Jiangsu province 215100 Patentee after: JIANGSU MIDEA CLEANING ELECTRICAL APPLIANCE CO., LTD. Address before: River Road, Suzhou City, Jiangsu Province, Li Xiangcheng District No. 999 215131 Patentee before: Jiangsu Midea Chunhua Electric Appliance Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20190412 |