CN207795625U - Axial flow blower - Google Patents
Axial flow blower Download PDFInfo
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- CN207795625U CN207795625U CN201721845864.9U CN201721845864U CN207795625U CN 207795625 U CN207795625 U CN 207795625U CN 201721845864 U CN201721845864 U CN 201721845864U CN 207795625 U CN207795625 U CN 207795625U
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Abstract
The utility model discloses a kind of axial flow blowers, including：Even number set flabellum group；Multiple drive components, multiple drive components include at least one first drive component and multiple second drive components, each first drive component is equipped with the identical flabellum group of two groups of bending directions, each second drive component is equipped with one group of flabellum group, multiple second drive components are distributed in the both sides of at least one first drive component, and the rotation direction of the flabellum group on adjacent two drive components is opposite and bending direction is opposite.The axial flow blower of the utility model, it is at low cost, it can generate without the high axis stream wind of the amount of changing, wind pressure, air supplying distance is remote, is conducive to the working efficiency and production efficiency that improve axial flow blower, reduces the noise of axial flow blower, be conducive to the lightweight of axial flow blower.
Description
Technical field
The utility model is related to aeration technology field more particularly to a kind of axial flow blowers.
Background technology
Current domestic and international household electrical appliances market, axial flow blower application is wider, such as the series production of air-conditioning, refrigerator, electric fan, micro-wave oven
Product, air-out direction, uniformity, wind pressure and air supplying distance etc. are the main performance index of wind turbine, especially in air circulation, remote
Distance air-supply and the heat dissipation scene for concentration members.The axial flow blower of field of household appliances mostly uses traditional single layer flabellum group or double
The design of layer flabellum group, it is vortex-like direction of rotation that outlet air, which has circular rector, air-out direction, and vortex shape air-flow is difficult to effective with radiator
Cooperation, to keep heat exchange efficiency limited, drag losses increase.Simultaneously because single-stage axial fan pressure is smaller, in rotating speed and make an uproar
Under sound requires, fan pressure deficiency leads to air supplying distance and overcomes resistance of ducting limited ability, to influence the work of axial flow blower
Make efficiency.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model carries
Go out a kind of axial flow blower, it is at low cost, it can generate without the high axis stream wind of the amount of changing, wind pressure, air supplying distance is remote, is conducive to improve axis stream wind
The working efficiency and production efficiency of machine, reduce the noise of axial flow blower, are conducive to the lightweight of axial flow blower.
According to the axial flow blower of the utility model embodiment, including：Even number set flabellum group；Multiple drive components are described more
A drive component includes at least one first drive component and multiple second drive components, is set on each first drive component
There is the identical flabellum group of two groups of bending directions, each second drive component is described equipped with flabellum group described in one group
Multiple second drive components are distributed in the both sides of at least one first drive component, in adjacent two the driving component
The flabellum group rotation direction it is opposite and bending direction is opposite.
According to the axial flow blower of the utility model embodiment, by the way that even number set flabellum group, at least one drive component is arranged
With multiple second drive components, while make each first drive component be equipped with the identical flabellum group of two groups of bending directions, each
Second drive component is equipped with one group of flabellum group, and multiple second drive components are distributed in the both sides of the first drive component, and make
The rotation direction of flabellum group on two adjacent drive components is opposite and bending direction is opposite.To make axial flow blower that can generate
Axis stream wind without circular rector, high wind pressure, increases the air supplying distance of axial flow blower, can effectively improve the axis stream of axial flow blower generation
Wind overcomes the ability of the resistance of ducting, and then improves the working efficiency of axial flow blower.Being manufactured into for axial flow blower can be reduced simultaneously
This, is conducive to the lightweight of axial flow blower, improves the production efficiency of axial flow blower, reduces noise when axial flow blower work.
The center of rotation axis of some embodiments according to the present utility model, the multiple drive component overlaps.
Optionally, flabellum group described in every group is integrally formed part.
Specifically, the flabellum quantity of flabellum group described in every group is N, and the N meets：2≤N≤16.
Optionally, flabellum group described in every group is plastic material part.
Optionally, first drive component and/or second drive component are motor.
Some embodiments according to the present utility model, first drive component are one, and second drive component is
Two.
Optionally, the flabellum group on each second drive component on first drive component described in
Flabellum group is arranged.
Optionally, the flabellum group on each second drive component is far from described on first drive component
Flabellum group is arranged.
Optionally, the flabellum group on second drive component on first drive component described in
Flabellum group is arranged, and the flabellum group on another described second drive component is far from the flabellum group on first drive component
Setting.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 is the stereogram of the axial flow blower of some embodiments according to the present utility model；
Fig. 2 is the front view of the axial flow blower in Fig. 1；
Fig. 3 is the front view of the axial flow blower of other embodiments according to the present utility model；
Fig. 4 is the front view of the axial flow blower of other embodiment according to the present utility model；
Fig. 5 is the front view of the axial flow blower of still other embodiments according to the present utility model.
Reference numeral：
Axial flow blower 100；
Flabellum group 1；Flabellum 11；
Drive component 2；First drive component 21；Second drive component 22.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more spy
Sign.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Below with reference to Fig. 1-Fig. 5 descriptions according to the axial flow blower 100 of the utility model embodiment.
As Figure 1-Figure 5, according to the axial flow blower of the utility model embodiment 100, including：Flabellum group 1 and driving group
Part 2.
Specifically, flabellum group 1 is even number set.Drive component 2 is multiple, and multiple drive components 2 include at least one the
One drive component 21 and multiple second drive components 22, each first drive component 21 are equipped with the identical fan of two groups of bending directions
Leaf group 1, each second drive component 22 are equipped with one group of flabellum group 1, and multiple second drive components 22 are distributed at least one the
The rotation direction of the both sides of one drive component 21, the flabellum group 1 on adjacent two drive components 2 is opposite and bending direction phase
Instead.
Since flabellum group 1 is even number set, each first drive component 21 is equipped with two groups of flabellum groups 1, each second driving
Component 22 is equipped with one group of flabellum group 1.It follows that the quantity of the second drive component 22 is even number.
It is known that multiple second drive components 22 are distributed in the both sides of at least one first drive component 21, in axis stream
On the wind-guiding direction of wind turbine 100, air-flow flows first to second drive component 22, corresponding one group of flabellum group 1 this second
Drive component 22 is rotated by form Whirl deposite tank.Due to the rotation side of the flabellum group 1 on two adjacent drive components 2
To opposite and bending direction on the contrary, it is hereby understood that one on the drive component 2 adjacent with the second above-mentioned drive component 22 is fanned
The eddy flow wind facies that the Whirl deposite tank that leaf group 1 is formed after rotating is formed after being rotated with the flabellum group 1 on the second above-mentioned drive component 22
It is mutually formed to whirlwind, and then mutually neutralized to form the axis stream wind without circular rector, high wind pressure, axis stream wind is flowed along axial flow blower 100
Flabellum group 1 downstream.
It is understood that the drive component 2 adjacent with the second above-mentioned drive component 22 is the first drive component
21 or second drive component 22, on the wind-guiding direction of axial flow blower 100, third group flabellum group 1 all can be to axis stream wind after rotating
Continue speedup of boosting, forms Whirl deposite tank again.Similarly, the Whirl deposite tank formed after next 4th group of flabellum group 1 rotation
The Whirl deposite tank that can be generated with the third group flabellum group 1 of its upstream is formed to whirlwind, to mutually neutralize to be formed without circular rector, Gao Feng
The axis stream wind of pressure, and so on.
In summary, on the wind-guiding direction of axial flow blower 100, the eddy flow for every two groups of flabellum groups 1 formation sequentially arranged
Wind can be neutralized mutually to form the axis stream wind without circular rector, high wind pressure.That is, on the wind-guiding direction of axial flow blower 100, it is suitable
The Whirl deposite tank that every two groups of flabellum groups 1 of secondary arrangement generate can be mutually formed to whirlwind mutually to neutralize, and eventually form axis stream wind.Example
Such as, in the axial flow blower 100 of specific embodiment shown in Fig. 2, the quantity of flabellum group 1 is four groups and sequentially arranges, in axis stream
On the wind-guiding direction of wind turbine 100, i.e., on direction from left to right, the eddy flow of first group of flabellum group 1 and the generation of second group of flabellum group 1
Wind can be mutually formed to whirlwind mutually to neutralize, and eventually form axis stream wind, the rotation that third flabellum group 1 and the 4th flabellum group 1 generate
Stream wind can be mutually formed to whirlwind mutually to neutralize, and eventually form axis stream wind.
It is known that the flabellum group 1 of the utility model embodiment is even number set, the utility model embodiment thereby may be ensured that
Axial flow blower 100 can be formed no circular rector, high wind pressure axis stream wind, improve the working efficiency of axial flow blower 100, while can increase
The air supplying distance of axial flow blower 100, the axis stream wind for effectively improving the generation of axial flow blower 100 overcome the ability of the resistance of ducting.
It being understood that compared with prior art, in the case where identical wind pressure or air supplying distance require, this practicality is new
The speed that the flabellum group 1 of the axial flow blower 100 of type embodiment rotates can reduce, and then can reduce when axial flow blower 100 works
Noise improves the comfort of user.1 velocity of rotation of flabellum group under the same conditions, the axis stream wind of the utility model embodiment
100 air output of machine is big, wind pressure is high, air supplying distance is remote.
In the axial flow blower 100 of the utility model embodiment, since the first drive component 21 is equipped with two groups of bending directions
Identical flabellum group 1, while multiple second drive components 22 are distributed in the both sides of at least one first drive component 21, thus
While ensureing the air output and air supplying distance of axial flow blower 100, the number of drive component 2 can also be reduced, and then reduce axis
The manufacturing cost of flow fan 100, while being conducive to the lightweight of axial flow blower 100, the production efficiency of axial flow blower 100 is improved,
Reduce noise when axial flow blower 100 works.
Simultaneously it is understood that the quantity of the second drive component 22 positioned at least one first drive component, 21 both sides
It can be respectively one or respectively even number, thereby may be ensured that the axial flow blower 100 of the utility model embodiment can be formed
Axis stream wind without circular rector, high wind pressure.
According to the axial flow blower 100 of the utility model embodiment, by the way that even number set flabellum group 1, at least one driving is arranged
Component 2 and multiple second drive components 22, while each first drive component 21 being made to be equipped with the identical fan of two groups of bending directions
Leaf group 1, each second drive component 22 are equipped with one group of flabellum group 1, and multiple second drive components 22 are distributed in the first driving group
The both sides of part 21, and make that the rotation direction of flabellum group 1 on two adjacent drive components 2 is opposite and bending direction is opposite.
To make axial flow blower 100 can generate no circular rector, high wind pressure axis stream wind, increase the air supplying distance of axial flow blower 100, can have
Effect ground improves the ability that the axis stream wind that axial flow blower 100 generates overcomes the resistance of ducting, and then improves the work effect of axial flow blower 100
Rate.The manufacturing cost that axial flow blower 100 can be reduced simultaneously is conducive to the lightweight of axial flow blower 100, improves axial flow blower
100 production efficiency reduces noise when axial flow blower 100 works.
The center of rotation axis of some embodiments according to the present utility model, multiple drive components 2 overlaps.So as into
The air output of axial flow blower 100 is improved to one step, that is, improves the working efficiency of axial flow blower 100.
Optionally, every group of flabellum group 1 is integrally formed part.So as to further improve the production of axial flow blower 100
Efficiency improves the reliability of flabellum group 1, that is, improves the reliability that axial flow blower 100 works.
Optionally, every group of flabellum group 1 is plastic material part.It is hereby understood that the light weight of flabellum group 1, at low cost, be conducive to
The manufacturing cost for reducing axial flow blower 100, makes 100 lightweight of axial flow blower.
Optionally, the first drive component 21 and/or the second drive component 22 are motor.It thereby may be ensured that the first driving group
22 reliability of part 21 and/or the second drive component, and then ensure the reliability that axial flow blower 100 works.
Some embodiments according to the present utility model, the first drive component 21 are one, and the second drive component 22 is two.
It is hereby understood that the structure of axial flow blower 100 is simple, easily manufactured.Three drive components 2 can be achieved and drive four groups of 1 turn of flabellum groups
It is dynamic, so not only ensure axial flow blower 100 can be formed no circular rector, high wind pressure axis stream wind, improve the work effect of axial flow blower 100
Rate, and the manufacturing cost of axial flow blower 100 can be reduced, be conducive to the lightweight of axial flow blower 100, improve axial flow blower
100 production efficiency reduces noise when axial flow blower 100 works.
In some embodiments of the utility model, as depicted in figs. 1 and 2, the flabellum on each second drive component 22
Flabellum group 1 of the group 1 on the first drive component 21 is arranged.In the still other embodiments of the utility model, such as Fig. 3 and Fig. 4
Shown, the flabellum group 1 of flabellum group 1 on second drive component 22 on the first drive component 21 is arranged, another the
Flabellum group 1 on two drive components 22 is arranged far from the flabellum group 1 on the first drive component 21.In other of the utility model
In embodiment, as shown in figure 5, the flabellum group 1 on each second drive component 22 is far from the flabellum group 1 on the first drive component 21
Setting.
It should be noted that in the axial flow blower 100 of the utility model embodiment, the flabellum on the second drive component 22
The position setting of group 1 is unrestricted, can be designed according to the actual demand of user, as long as ensureing the work of axial flow blower 100
Efficiency and reliability.
Some embodiments according to the present utility model, on the wind-guiding direction of axial flow blower 100, adjacent two driving groups
The minimum range between flabellum group 1 on part 2 is L, and wherein L meets：L≥5mm.As a result, in 100 course of work of axial flow blower
In, collide when can be effectively prevented adjacent two flabellum groups 1 rotation, to improve the work of axial flow blower 100 can
By property.
Specifically, 12 quantity of flabellum of every group of flabellum group 1 is N, when N meets：When 2≤N≤16, it is ensured that axial flow blower
100 air output and air supplying distance improves the ability that the axis stream wind that axial flow blower 100 generates overcomes the resistance of ducting.As long as ensureing
The air output and air supplying distance of axial flow blower 100 improve the working efficiency of axial flow blower 100.
Optionally, every group of flabellum group 1 includes wheel hub 11, the multiple fans arranged successively along the center position far from flabellum group 1
Leaf 12 and wheel rim 13, wheel hub 11 are formed as cylindrical, and wheel rim 13 is formed as annular, and the both ends of each flabellum 12 are respectively provided at wheel rim
13 and wheel hub 11 on.That is wheel hub 11 is located at the center of flabellum group 1 and extends along the wind-guiding direction of axial flow blower 100, wheel
Edge 13 is set on wheel hub 11, and wheel rim 13 is connected with wheel hub 11 by multiple flabellums 12.It follows that every group of flabellum group 1
Be formed as enclosed flabellum group 1, it is simple in structure, while the structure of flabellum group 1 can be made more solid and reliable, be conducive to improve axis stream wind
The working efficiency and reliability of machine 100.Herein it should be noted that the shape of wheel hub 11 and wheel rim 13 is without being limited thereto, as long as protecting
Demonstrate,prove the reliability of structure of flabellum group 1.
Further, each flabellum 12 is detachably arranged on wheel hub 11 and wheel rim 13.Consequently facilitating the peace of flabellum group 1
Dress, dismounting and replacement, improve the flexibility of axial flow blower 100.
The structure of the axial flow blower 100 according to one specific embodiment of the utility model is carried out below with reference to Fig. 1 and Fig. 2
It is described in detail.It should be understood that following explanations only have it is exemplary, those of ordinary skill reading this practicality newly
After the following technical proposals of type, it is clear that can either some technical characteristics are combined or replace to technical solution therein
It changes, change, this also falls within the protection domain required by the utility model.
As depicted in figs. 1 and 2, according to the axial flow blower of the utility model embodiment 100, including：Four groups of flabellum groups 1, one
A first drive component 21 and two the second drive components 22.
Specifically, each first drive component 21 is equipped with the identical flabellum group 1 of two groups of bending directions, each second drives
Dynamic component 22 is equipped with the flabellum group 1 on one group of flabellum group 1 and each second drive component 22 on the first drive component 21
Flabellum group 1 be arranged.
The center of rotation axis of three drive components 2 overlaps, on the wind-guiding direction of axial flow blower 100, two second drives
Dynamic component 22 is distributed in the both sides of the first drive component 21, the rotation direction phase of the flabellum group 1 on adjacent two drive components 2
Anti- and bending direction is opposite.
Every group of flabellum group 1 is the integrated molding part of Material texture, and the first drive component 21 and the second drive component 22 are
Motor.The 11 quantity N=3 of flabellum of every group of flabellum group 1, on the wind-guiding direction of axial flow blower 100, adjacent two drive components
The minimum range between flabellum group 1 on 2 is L=5mm.A diameter of 400mm of maximum flabellum 11, rotating speed 1000r/min.
When axial flow blower 100 works, on the wind-guiding direction of axial flow blower 100, air-flow is first passed around positioned at inlet side
The second drive component 22 on flabellum group 1, then flow successively through two groups of flabellum groups 1 on the first drive component 21, finally lead to
The flabellum group 1 crossed on the second drive component 22 of air side flows out axial flow blower 100.
The second drive component 22 for being wherein located at inlet side drives corresponding flabellum group 1 to be rotated in the counterclockwise direction to generate
Whirl deposite tank, then the first drive component 21 drive corresponding two flabellum groups 1 to be rotated in a clockwise direction.Wherein the first driving group
The Whirl deposite tank that the flabellum group 1 positioned at inlet side on part 21 generates and the flabellum group on the second drive component 22 of inlet side
1 generate Whirl deposite tank mutually form to whirlwind, and then mutually neutralize and formed no circular rector, high wind pressure axis stream wind.First driving
The flabellum group 1 positioned at air side on component 21 can continue axis stream wind to boost speedup and form Whirl deposite tank again, be located at
Second drive component 22 of air side drives corresponding flabellum group 1 to be rotated in the counterclockwise direction to generate Whirl deposite tank to be driven with first
The Whirl deposite tank that the flabellum group 1 positioned at air side on dynamic component 21 generates is mutually formed to whirlwind, and then is mutually neutralized to be formed
Axis stream wind without circular rector, high wind pressure.Then axis stream wind flows out axial flow blower 100 along the axial of axial flow blower 100.So as to
Improve the working efficiency of axial flow blower 100.
According to other configuration examples of the axial flow blower 100 of the utility model embodiment and operation for the common skill in this field
All it is known for art personnel, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that：
Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (10)
1. a kind of axial flow blower, which is characterized in that including：
Even number set flabellum group；
Multiple drive components, the multiple drive component include at least one first drive component and multiple second drive components,
Each first drive component is equipped with the identical flabellum group of two groups of bending directions, each on second drive component
Equipped with flabellum group described in one group, the multiple second drive component is distributed in the both sides of at least one first drive component,
The rotation direction of the flabellum group in two adjacent the driving component is opposite and bending direction is opposite.
2. axial flow blower according to claim 1, which is characterized in that the center of rotation axis weight of the multiple drive component
It closes.
3. axial flow blower according to claim 1, which is characterized in that flabellum group described in every group is integrally formed part.
4. axial flow blower according to claim 1, which is characterized in that the flabellum quantity of flabellum group described in every group is N, described
N meets：2≤N≤16.
5. axial flow blower according to claim 1, which is characterized in that flabellum group described in every group is plastic material part.
6. axial flow blower according to claim 1, which is characterized in that first drive component and/or second drive
Dynamic component is motor.
7. axial flow blower according to claim 1, which is characterized in that first drive component be one, described second
Drive component is two.
8. axial flow blower according to claim 7, which is characterized in that the flabellum on each second drive component
Flabellum group setting of the group on first drive component.
9. axial flow blower according to claim 7, which is characterized in that the flabellum on each second drive component
Group is far from the flabellum group setting on first drive component.
10. axial flow blower according to claim 7, which is characterized in that the fan on second drive component
The flabellum group of the leaf group on first drive component is arranged, the flabellum on another described second drive component
Group is far from the flabellum group setting on first drive component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721845864.9U CN207795625U (en) | 2017-12-22 | 2017-12-22 | Axial flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721845864.9U CN207795625U (en) | 2017-12-22 | 2017-12-22 | Axial flow blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795625U true CN207795625U (en) | 2018-08-31 |
Family
ID=63281869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721845864.9U Active CN207795625U (en) | 2017-12-22 | 2017-12-22 | Axial flow blower |
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| Country | Link |
|---|---|
| CN (1) | CN207795625U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458663A (en) * | 2018-11-16 | 2019-03-12 | 广东美的制冷设备有限公司 | Air-conditining and air conditioner with it |
| CN110513312A (en) * | 2019-09-05 | 2019-11-29 | 东莞市鸿生五金塑胶科技有限公司 | Inflation/deflation air pump |
| CN111043058A (en) * | 2018-10-15 | 2020-04-21 | 广东美的白色家电技术创新中心有限公司 | Counter-rotating fan |
-
2017
- 2017-12-22 CN CN201721845864.9U patent/CN207795625U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043058A (en) * | 2018-10-15 | 2020-04-21 | 广东美的白色家电技术创新中心有限公司 | Counter-rotating fan |
| CN109458663A (en) * | 2018-11-16 | 2019-03-12 | 广东美的制冷设备有限公司 | Air-conditining and air conditioner with it |
| CN110513312A (en) * | 2019-09-05 | 2019-11-29 | 东莞市鸿生五金塑胶科技有限公司 | Inflation/deflation air pump |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |