CN205090586U - Filter core support and air purifier - Google Patents
Filter core support and air purifier Download PDFInfo
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- CN205090586U CN205090586U CN201520835581.0U CN201520835581U CN205090586U CN 205090586 U CN205090586 U CN 205090586U CN 201520835581 U CN201520835581 U CN 201520835581U CN 205090586 U CN205090586 U CN 205090586U
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- 230000001154 acute effect Effects 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009610 hypersensitivity Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- -1 pollen Substances 0.000 description 1
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Abstract
The application discloses a filter core support and air purifier. A filter core shelf energy sets up and support the filter core in air purifier, the filter core support includes: the guide vane that the vertical direction in a plurality of edges was arranged, wherein, at least one the direction that extend to its top the bottom of guide vane acutangulates the setting with the horizontal direction, the top of guide vane can be close to for its bottom the filter core. The bottom of guide vane is 30 degrees to 60 degrees to the direction of its top extension and the contained angle of horizontal direction. The bottom of guide vane is 45 degrees to the direction of its top extension and the contained angle of horizontal direction. The outline line of the cross section of the bottom of guide vane is the pitch arc. The filter core support and air purifier that this application provided can lead to the air -out of fan, makes its and filter core form the air inlet angle of preferred to improve air -out purification efficiency.
Description
Technical field
The application relates to air purification field, particularly relates to a kind of filter core support and air purifier.
Background technology
Room air may include or poisonous various materials bad to human body, as dust, pollen, smoke from cigarette, breath etc.Particularly housing facilities has height airtight construction in recent years, noxious material is made to rest on indoor, in addition, in the area that heavy air pollutes or in the family had the patient of pollen hypersensitivity and office, be not easy to carry out gravity-flow ventilation to improve room air by windowing to room.Therefore, it is possible to application room air being carried out to the air purifier of filtration, purification is more and more extensive.
At present, the air purifier generally used generally includes housing, blower fan, shutter and filter core.Blower fan and filter core are arranged in housing, and shutter and housing removably connect.Blower fan is provided with air inlet and air outlet, and shutter is provided with multiple fresh air inlet and enters to make room air.Room air enters blower fan by shutter through air inlet, and is urged to filter core by blower fan through air outlet, and then room air is purified by filter element filtering through filter core, and then reaches the object purified the air of a room.
In some air purifiers filter core be vertically be placed on blower fan between air outlet and air outlet grate, thus air-out to be filtered.For ease of installing more renew cartridge, in air purifier, being usually provided with filter core support installing for filter core.For this kind of air purifier, in the relatively-stationary situation of filter core and blower fan position, when the air-out of blower fan enters filter core, its wind direction and vertical filter core cannot form good air intake angle, and current filter core support is only supporting role for above-mentioned filter core, thus cause filter core to form larger windage to air-out, affect air-out purification efficiency.
Utility model content
In view of the deficiencies in the prior art, the application provides a kind of filter core support and air purifier, can lead to the air-out of blower fan, makes itself and filter core form preferably air intake angle, thus improves air-out purification efficiency.
For achieving the above object, the application provides a kind of filter core support, and it can be arranged in air purifier and support filter core; Described filter core support comprises:
Multiple guide vane of vertically arranging, wherein, the direction that the bottom of guide vane described at least one extends to its top is arranged from the horizontal by acute angle; The top of described guide vane can near described filter core relative to bottom it.
As preferred a kind of embodiment, the angle of the direction that the bottom of described guide vane extends to its top and horizontal direction is 30 degree to 60 degree.
As preferred a kind of embodiment, the angle of the direction that the bottom of described guide vane extends to its top and horizontal direction is 45 degree.
As preferred a kind of embodiment, the outline line of the cross section of the bottom of described guide vane is camber line.
As preferred a kind of embodiment, the direction that the bottom of each described guide vane extends to its top is all arranged from the horizontal by acute angle.
As preferred a kind of embodiment, the direction that the bottom of each described guide vane extends to its top is all equal with the angle of horizontal direction.
As preferred a kind of embodiment, the spacing distance often between neighbouring two described guide vanes reduces from the bottom to top successively.
As preferred a kind of embodiment, each described guide vane increases from the bottom to top successively along the development length to its top bearing of trend bottom it.
As preferred a kind of embodiment, described support member comprises multiple gripper shoe of arranging in the horizontal direction, and described gripper shoe vertically extends; Multiple described gripper shoe and multiple described guide vane form grid construction.
For achieving the above object, the application also provides a kind of air purifier, comprising:
Blower fan;
As above the filter core support described in arbitrary embodiment;
Filter core, it is arranged on described filter core support.
As preferred a kind of embodiment, described blower fan is arranged at the below of described filter core support.
As preferred a kind of embodiment, the quantity of described filter core support is two, two described filter core support shaft symmetries also form the air channel communicated with described blower fan between two described filter core supports, and the top of the described guide vane of two described filter core supports deviates from described air channel bottom separately; The quantity of described filter core is two, and two described filter cores are parallel to be placed on two described filter core supports.
As preferred a kind of embodiment, the quantity of described filter core support is two, two described filter core support shaft symmetries also form the air channel communicated with described blower fan between two described filter core supports, and the top of the described guide vane of two described filter core supports deviates from described air channel bottom separately; The quantity of described filter core is three, and wherein, two described filter cores are parallel to be placed on two described filter core supports, filter core described in another by the top braces of two described filter core supports above described filter core support.
Can find out in the application by describing above, the direction extended to its top by the bottom of guide vane described at least one is arranged from the horizontal by acute angle, namely make it lead to the air-out of blower fan to enter in filter core again by being obliquely installed guide vane, simultaneously, the top of guide vane ensure that the correct guidance for air-out relative to bottom it near filter core, so, the filter core support that the application provides can lead to the air-out of blower fan, make itself and filter core form preferably air intake angle, thus improve air-out purification efficiency.
With reference to explanation hereinafter and accompanying drawing, disclose in detail particular implementation of the present utility model, specifying principle of the present utility model can adopted mode.Should be appreciated that, thus embodiment of the present utility model is not restricted in scope.In the spirit of claims and the scope of clause, embodiment of the present utility model comprises many changes, amendment and is equal to.
The feature described for a kind of embodiment and/or illustrate can use in one or more other embodiment in same or similar mode, combined with the feature in other embodiment, or substitutes the feature in other embodiment.
Should emphasize, term " comprises/comprises " existence referring to feature, one integral piece, step or assembly when using herein, but does not get rid of the existence or additional of one or more further feature, one integral piece, step or assembly.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the filter core support schematic diagram that a kind of embodiment of the application provides;
Fig. 2 is the generalized section of the guide vane of the support of filter core shown in Fig. 1;
Fig. 3 is the generalized section of the support of filter core shown in Fig. 1;
Fig. 4 is the filter core support schematic diagram that the another kind of embodiment of the application provides;
Fig. 5 is the filter core support schematic diagram that the another kind of embodiment of the application provides.
Detailed description of the invention
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of the utility model protection.
It should be noted that, when element is called as " being arranged at " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in description of the present utility model herein just in order to describe concrete embodiment, is not intended to be restriction the utility model.Term as used herein "and/or" comprises arbitrary and all combinations of one or more relevant Listed Items.
Please refer to Fig. 1 to Fig. 3, be a kind of filter core support 100 that a kind of embodiment of the application provides, it can be arranged in air purifier and support filter core; Described filter core support 100 comprises: multiple guide vane 101 of vertically arranging, and wherein, the direction that the bottom 1011 of guide vane 101 described at least one extends to its top 1012 is arranged from the horizontal by acute angle; The top 1012 of described guide vane 101 is relative to the close described filter core of 1011 energy bottom it.
During use, the guide vane 101 arranged by vertical direction arrangement can ensure with to air-out guiding above the air outlet that the vertical placement of filter core, this filter core support 100 can be installed on blower fan, certainly, filter core support 100 also can match with the air inlet of blower fan, leads to air intake.For air-out, wind first touches filter core support 100 after being discharged by the air outlet of blower fan, due to the guide vane 101 of filter core support 100 top 1012 relative to bottom it 1011 near filter core, so, the air-out of blower fan first contacts the bottom 1011 of guide vane 101, because at least one guide vane 101 non-vertical is arranged, but the direction that the bottom 1011 of guide vane 101 extends to its top 1012 is arranged from the horizontal by acute angle, and then, relative to vertical direction, there is certain inclination in this guide vane 101, carry out certain break-in by the wind direction of guide vane 101 pairs of air-out behind the bottom 1011 of air-out contact guide vane 101 to lead, make wind direction during being flowed out by guide vane 101 top 1012 of air-out can form better air intake angle with filter core, and then reduce the windage that air-out enters filter core.
Can find out in present embodiment by describing above, the direction extended to its top 1012 by the bottom 1011 of guide vane described at least one 101 is arranged from the horizontal by acute angle, namely make it lead to the air-out of blower fan to enter in filter core again by being obliquely installed guide vane 101, simultaneously, the top 1012 of guide vane 101 is relative to 1011 ensure that correct guidance for air-out near filter core bottom it, so, the filter core support 100 that present embodiment provides can lead to the air-out of blower fan, itself and filter core is made to form preferably air intake angle, thus improve air-out purification efficiency.
Please continue to refer to Fig. 1, the filter core support 100 that present embodiment provides can be arranged in air purifier, is specifically as follows and is fixedly connected with, and can be also detachable connection, the application be restricted.This filter core support 100 comprises multiple guide vane 101, and described guide vane 101 entirety can be the lamellar body of the oblong extended in the horizontal direction.Certainly, filter core support 100 also can have supporting mechanism to support multiple guide vane 101, and meanwhile, supporting mechanism and guide vane 101 together form the incorporating section of placing filter core, such as slot, draw-in groove or other mechanisms.
The cross section of guide vane 101 can be as shown in Figure 2, in multiple guide vane 101, the direction that the bottom 1011 of guide vane 101 described at least one extends to its top 1012 is arranged from the horizontal by acute angle, and then this guide vane 101 is obliquely installed relative to vertical direction, to lead to the air-out of blower fan.Form air-out/air intake gap 110 between upper and lower two guide vanes 101, flow through for air, and when air flows, guide vane 101 completes the guiding to blower fan air-out wind direction.
Filter core support 100 based on described multiple guide vane 101 can have back to both sides, also can be called inner side and outside along wind direction, in air-out process, filter core support 100 is by Inside To Outside air-out, in air intake process, filter core support 100 is by air intake inside lateral.Based on this, the direction that the bottom 1011 of guide vane 101 extends to its top 1012 also can be understood as from inside to outside and the direction simultaneously upwards extended.
Guide vane 101 entirety is lamellar body, its can have back to two surfaces, these two surfaces are by top 1012 and bottom 1011 transition.The top 1012 of described guide vane 101 near described filter core relative to bottom 1011, can be the position of contact blower fan air-out at first and have surface windward in the bottom 1011 of guide vane 101 in air-out process.Level and smooth for ensureing the air-out of blower fan break-in when the bottom 1011 of guide vane 101, resistance is less, and then the outline line that can arrange the cross section of the bottom 1011 of described guide vane 101 is camber line.Arranged by this kind, the bottom 1011 of guide vane 101 can have level and smooth surface windward, the air-out of blower fan smoothly can be directed into the gap 110 between upper and lower two guide vanes 101 through the bottom 1011 of guide vane 101, and complete guiding by guide vane 101, and then the resistance suffered by the air-out that can reduce blower fan is further set by this kind.
For obtaining good air-out purification efficiency and clean-up effect, inventor is through lot of experiments, when finding that the angle of direction and the horizontal direction extended to its top 1012 bottom 1011 of described guide vane 101 is set to 30 degree to 60 degree, the resistance that guide vane 101 can cause air-out/air intake when leading to air-out is less, simultaneously, air-out after guiding also can have good entry angle when entering filter core, so, at this kind, the air-out purification efficiency that lower filter support 100 effectively can improve air purifier is set.As the preferred scheme of one, as shown in Figure 3, the angle of the direction that extends to its top 1012, the bottom 1011 of described guide vane 101 and horizontal direction can be 45 degree.
Further, for obtaining preferably air-out purification efficiency, in present embodiment, the direction that the bottom 1011 that can arrange each described guide vane 101 extends to its top 1012 is all arranged from the horizontal by acute angle, and then each guide vane 101 all can lead to air-out.Further, the direction that extends to its top 1012, the bottom 1011 of each described guide vane 101 is all equal with the angle of horizontal direction.Figure 3 shows that example, the angle of the direction that the bottom 1011 of each described guide vane 101 extends to its top 1012 and horizontal direction is 45 degree.
Refer to Fig. 4, consider in existing air purifier use procedure, easily occur that filter core is more near top 1012 position air-out, and less near bottom 1011 position air-out, the problem that air-out is comparatively uneven.For head it off, in present embodiment, the spacing distance that can arrange often between neighbouring two described guide vanes 101 reduces from the bottom to top successively.Because multiple guide vane 101 is for vertically to arrange, the spacing distance between adjacent two guide vanes 101 is its vertical spacing, also can be the vertical length in gap 110 between adjacent two guide vanes 101.Arrange can find out by this kind, the vertical length of the gap 110b between the guide vane 101 of top is shorter, spacing distance is less, guide vane 101 density above filter core support 100 is improved, and then increase the resistance of top guide vane 101 for air-out, and the vertical length of gap 110a between the guide vane 101 of below is longer, spacing distance is larger, make the density of the guide vane 101 below filter core support comparatively on less, and then its for air-out resistance compared with on the resistance of guide vane 101 less, the top air output of the filter core of air purifier can be suppressed thus to increase the below air output of filter core, make the even air-out of air purifier.
Refer to Fig. 5, same solve the uneven problem of above-mentioned air-out, in present embodiment, can also by arrange each described guide vane 101 along its bottom 1011 to increase successively from the bottom to top to the development length of its top 1012 bearing of trend.Arranged by this kind, add the guiding time of guide vane 101 for air-out, and then increase the resistance of top guide vane 101a for air-out, and below filter core support 100 due to the described development length of the guide vane 101b of below comparatively on less, and then its for air-out resistance compared with on the resistance of guide vane 101a less, the top air output of the filter core of air purifier can be suppressed thus to increase the below air output of filter core, make the even air-out of air purifier.
Certainly, solve the uneven problem of above-mentioned air-out and be not limited to above-mentioned two kinds of modes, the problems referred to above can also be solved by the angle of inclination (angle that bottom extends towards top) arranging guide vane 101 from the bottom to top, such as, it is increasing that the angle of 45 degree is departed from the angle of inclination that can arrange guide vane 101 from the bottom to top.
Please continue to refer to 1, described support member can comprise multiple gripper shoe 102 of arranging in the horizontal direction, and described gripper shoe 102 vertically extends; Multiple described gripper shoe 102 forms grid construction with multiple described guide vane 101.Consider that filter core support 100 entirety can be plastic material, multiple gripper shoe 102 can be formed in one with multiple guide vane 101 and construct.
The another kind of embodiment of the application also provides a kind of air purifier, comprising: blower fan; As above the filter core support 100 described in arbitrary embodiment; Filter core, it is arranged on described filter core support 100.Wherein, the shape of filter core support 100, structure and effect all can be arranged with reference to above-mentioned embodiment, repeat no longer one by one herein.
In present embodiment, filter core is arranged on filter core support 100.Filter core support 100 is not construed as limiting with relative position relation the application of blower fan, and such as, it can be positioned at the below of blower fan, also can be positioned at the top etc. of blower fan.As preferred mode, described blower fan can be arranged at the below of described filter core support 100.
As a concrete embodiment, the quantity of described filter core support 100 can be two, and two described filter core support 100 axial symmetry also form the air channel communicated with described blower fan between two described filter core supports 100.The top 1012 of the described guide vane 101 of two described filter core supports 100 deviates from described air channel relative to respective bottom 1011, and air channel can be communicated with the air outlet of blower fan or air inlet, and preferably, this air channel is communicated with the air outlet of blower fan.The quantity of described filter core is two, and two described filter cores are parallel to be placed on two described filter core supports 100.
As a feasible embodiment, the quantity of described filter core support 100 is two, two described filter core support 100 axial symmetry also form the air channel communicated with described blower fan between two described filter core supports 100, the top 1012 of the described guide vane 101 of two described filter core supports 100 deviates from described air channel relative to respective bottom 1011 and can be communicated with the air outlet of blower fan or air inlet, preferably, this air channel is communicated with the air outlet of blower fan.The quantity of described filter core is three, and wherein, two described filter cores are parallel to be placed on two described filter core supports 100, and filter core described in another is supported on the top of described filter core support 100 by the top 1012 of two described filter core supports 100.By arranging three filter cores of said structure, the air-out purification efficiency of air purifier effectively can be increased.
Any digital value quoted herein all comprises all values with the lower value of an incremented and upper value between lower limit to higher limit, there is the interval of at least Liang Ge unit between any lower value and any much higher value.For example, if set forth the quantity of parts or the value of process variable (such as temperature, pressure, time etc.) is from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, then object also lists such as 15 to 85,22 to 68,43 to 51,30 to 32 equivalences clearly to illustrate in this description.For the value being less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.These are only the examples wanting clearly to express, and can think that likely the combining of numerical value of enumerating between minimum and peak is all set forth clearly at this description in a similar manner.
Except as otherwise noted, all scopes all comprise all numerals between end points and end points." approximately " or " being similar to " that use together with scope is suitable for two end points of this scope.Thus, " about 20 to 30 " are intended to cover " about 20 to about 30 ", at least comprise the end points indicated.
The all articles disclosed and reference, comprising patent application and publication, being incorporated into this for various purposes by quoting.Describe combination term " substantially by ... form " determined element, composition, parts or step should be comprised and not affect in fact other elements of basic novel feature of this combination, composition, parts or step.The combination of element, composition, parts or the step that term " comprises " or " comprising " describes here is used also to contemplate the embodiment be substantially made up of these elements, composition, parts or step.Here by use term " can ", be intended to illustrate " can " described any attribute of comprising is all optional.
Multiple element, composition, parts or step can be provided by single integrated component, composition, parts or step.Alternatively, single integrated component, composition, parts or step can be divided into multiple elements of separation, composition, parts or step.Be used for describing the open "a" or "an" of element, composition, parts or step and do not say element, composition, parts or step in order to get rid of other.
Should be appreciated that, above description is to carry out illustrating instead of in order to limit.By reading foregoing description, the many embodiments outside provided example and many application will be all apparent for a person skilled in the art.Therefore, the scope of this instruction should not determined with reference to foregoing description, but the four corner of the equivalent that should have with reference to claims and these claims is determined.For comprehensive object, all articles and with reference to comprising the open all by reference to being combined in herein of patent application and bulletin.Omit in aforementioned claim theme disclosed herein any in be not to abandon this body matter, also should not be considered as the part that this theme is not thought of as disclosed utility model theme by inventor.
Claims (13)
1. a filter core support, it can be arranged in air purifier and support filter core; It is characterized in that, described filter core support comprises:
Multiple guide vane of vertically arranging, wherein, the direction that the bottom of guide vane described at least one extends to its top is arranged from the horizontal by acute angle; The top of described guide vane can near described filter core relative to bottom it.
2. filter core support as claimed in claim 1, is characterized in that: the angle of the direction that the bottom of described guide vane extends to its top and horizontal direction is 30 degree to 60 degree.
3. filter core support as claimed in claim 2, is characterized in that: the angle of the direction that the bottom of described guide vane extends to its top and horizontal direction is 45 degree.
4. filter core support as claimed in claim 1, is characterized in that: the outline line of the cross section of the bottom of described guide vane is camber line.
5. filter core support as claimed in claim 1, is characterized in that: the direction that the bottom of each described guide vane extends to its top is all arranged from the horizontal by acute angle.
6. filter core support as claimed in claim 5, is characterized in that: the direction that the bottom of each described guide vane extends to its top is all equal with the angle of horizontal direction.
7. filter core support as claimed in claim 1, is characterized in that: the spacing distance often between neighbouring two described guide vanes reduces from the bottom to top successively.
8. filter core support as claimed in claim 1, is characterized in that: each described guide vane increases from the bottom to top successively along the development length to its top bearing of trend bottom it.
9. filter core support as claimed in claim 1, is characterized in that: described support member comprises multiple gripper shoe of arranging in the horizontal direction, and described gripper shoe vertically extends; Multiple described gripper shoe and multiple described guide vane form grid construction.
10. an air purifier, is characterized in that, comprising:
Blower fan;
Filter core support as described in as arbitrary in claim 1 to 9;
Filter core, it is arranged on described filter core support.
11. air purifiers as claimed in claim 10, is characterized in that: described blower fan is arranged at the below of described filter core support.
12. air purifiers as claimed in claim 11, it is characterized in that: the quantity of described filter core support is two, two described filter core support shaft symmetries also form the air channel communicated with described blower fan between two described filter core supports, and the top of the described guide vane of two described filter core supports deviates from described air channel bottom separately; The quantity of described filter core is two, and two described filter cores are parallel to be placed on two described filter core supports.
13. air purifiers as claimed in claim 11, it is characterized in that: the quantity of described filter core support is two, two described filter core support shaft symmetries also form the air channel communicated with described blower fan between two described filter core supports, and the top of the described guide vane of two described filter core supports deviates from described air channel bottom separately; The quantity of described filter core is three, and wherein, two described filter cores are parallel to be placed on two described filter core supports, filter core described in another by the top braces of two described filter core supports above described filter core support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835581.0U CN205090586U (en) | 2015-10-26 | 2015-10-26 | Filter core support and air purifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835581.0U CN205090586U (en) | 2015-10-26 | 2015-10-26 | Filter core support and air purifier |
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| Publication Number | Publication Date |
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| CN205090586U true CN205090586U (en) | 2016-03-16 |
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| CN201520835581.0U Active CN205090586U (en) | 2015-10-26 | 2015-10-26 | Filter core support and air purifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383237A (en) * | 2021-12-21 | 2022-04-22 | 珠海格力电器股份有限公司 | Air duct structure and fresh air fan |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383237A (en) * | 2021-12-21 | 2022-04-22 | 珠海格力电器股份有限公司 | Air duct structure and fresh air fan |
| CN114383237B (en) * | 2021-12-21 | 2023-08-25 | 珠海格力电器股份有限公司 | Air duct structure and new fan |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: A. O. SMITH (CHINA) ENVIRONMENTAL PRODUCTS Co.,Ltd. Assignor: AOSMITH (China) water heater Co.,Ltd. Contract record no.: X2022990000446 Denomination of utility model: Filter holder and air purifier Granted publication date: 20160316 License type: Common License Record date: 20220729 |
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