CN212252988U - Novel refrigeration cooling fan - Google Patents
Novel refrigeration cooling fan Download PDFInfo
- Publication number
- CN212252988U CN212252988U CN202020438762.0U CN202020438762U CN212252988U CN 212252988 U CN212252988 U CN 212252988U CN 202020438762 U CN202020438762 U CN 202020438762U CN 212252988 U CN212252988 U CN 212252988U
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- Prior art keywords
- heat
- refrigeration
- heat dissipation
- shell
- fan
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- Expired - Fee Related
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 69
- 238000001816 cooling Methods 0.000 title claims abstract description 45
- 230000017525 heat dissipation Effects 0.000 claims abstract description 68
- 230000000712 assembly Effects 0.000 claims abstract description 31
- 238000000429 assembly Methods 0.000 claims abstract description 31
- 239000004020 conductor Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 238000007664 blowing Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
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Abstract
The utility model discloses a novel refrigeration cooling fan, which comprises a fan component, a refrigeration device and a heat dissipation component; the fan assembly comprises a fan body and a mounting piece for mounting the fan body; the refrigerating device comprises a shell and two refrigerating components; the shell is arranged at the bottom of the fan body, the upper end face of the shell is provided with a through hole, the lower end face of the shell is provided with an air outlet, the left side wall and the right side wall of the shell are provided with mounting holes, the through hole is vertically opposite to the air outlet, and the air outlet is vertically opposite to the through hole; the two refrigeration components are arranged in the shell in a left-right opposite mode; the heat dissipation assembly comprises two first heat dissipation assemblies and two second heat dissipation assemblies, one ends of the two first heat dissipation assemblies are respectively connected with the two refrigeration assemblies, and the other ends of the two first heat dissipation assemblies respectively penetrate out of the two mounting holes; the two second heat dissipation assemblies are respectively arranged above the two first heat dissipation assemblies, and the lower ends of the two second heat dissipation assemblies are connected with the first heat dissipation assemblies. According to the utility model provides a refrigeration cooling fan can refrigerate the wind that blows out to the wind that makes to blow out is cold wind, thereby can improve the comfort level that the user used.
Description
Technical Field
The utility model relates to the field of household appliances, especially, relate to a novel refrigeration cooling fan.
Background
In people's house life, the kitchen is a very important activity region, because the kitchen uses high temperature to cook usually, causes the kitchen space temperature higher, especially in the higher season of outdoor temperature, people often bear the decocting of higher temperature when the kitchen moves about, but because of having the oil smoke in the kitchen can not install ordinary air conditioner, consequently, people often use the cooling fan to blow and cool down.
However, the cooling effect of the cooling fan is relatively poor, and when the external temperature is high, the temperature of the blown air is also high, so that the comfort brought to people is relatively poor.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model aims to provide a novel refrigeration cooling fan.
In order to achieve the above object, according to the utility model discloses a novel refrigeration cooling fan, include:
the fan assembly comprises a fan body and a mounting piece, wherein an air outlet is formed in the bottom of the fan body, and the mounting piece is connected with the fan body and used for mounting the fan body on a ceiling;
the refrigeration device comprises a shell and a refrigeration assembly; the shell is arranged at the bottom of the fan body, a through hole is formed in the upper end face of the shell, a plurality of air outlet holes are formed in the lower end face of the shell, mounting holes are formed in the left side wall and the right side wall of the shell respectively, the through hole is vertically opposite to an air outlet in the fan body, and the air outlet holes are vertically opposite to the through hole; the two refrigeration components are arranged in the shell in a left-right opposite mode;
the cooling device comprises a cooling assembly, a first cooling assembly and a second cooling assembly, wherein the number of the cooling assembly is two, one end of each of the two cooling assemblies is connected with the corresponding refrigerating assembly, and the other end of each of the two cooling assemblies penetrates out of the corresponding mounting hole; the two second heat dissipation assemblies are respectively arranged above the two first heat dissipation assemblies, and the lower ends of the two second heat dissipation assemblies are connected with the first heat dissipation assemblies.
According to the utility model provides a refrigeration cooling fan can refrigerate the wind that blows off to make the wind that blows off be cold wind, thereby can improve the comfort level that the user used.
In addition, according to the utility model discloses novel refrigeration cooling fan of above-mentioned embodiment can also have following additional technical characterstic:
according to an embodiment of the present invention, the first heat dissipation assembly includes a heat conductor and a plurality of first heat dissipation fins;
the inner end of the heat conductor is connected with the refrigerating assembly;
a plurality of first radiating fin from top to bottom interval even set up in the outer end of heat conductor.
According to an embodiment of the present invention, the second heat dissipation assembly includes a heat conductive connecting member, a heat conductive mounting plate, and a plurality of second heat dissipation fins;
the heat conduction connecting piece is of a U-shaped structure, and the upper end and the lower end of the heat conduction connecting piece are respectively connected with the first heat radiating fin positioned at the uppermost end and the first heat radiating fin positioned at the lowermost end;
the heat conduction mounting plate is arranged above the heat conduction connecting piece and is vertically connected with the upper end of the heat conduction connecting piece;
a plurality of second radiating fins from top to bottom the even setting in of interval on the outer wall of heat conduction mounting panel.
According to an embodiment of the present invention, each of the two refrigeration components includes a refrigeration module, a cold conductor, a heat conductor, a cold plate, and a hot plate;
the two refrigerating modules are oppositely arranged in the shell left and right;
the two cold conduction pieces are respectively arranged at the inner sides of the two refrigeration modules and are connected with the cold ends of the refrigeration modules;
the two heat conduction pieces are respectively arranged at the outer sides of the two refrigeration modules and are connected with the hot ends of the refrigeration modules;
the two cold plates are respectively connected with the two cold conduction plates, an air supply channel is formed between the two cold plates, and the air supply channel is opposite to the air outlet up and down;
the two heat plates are respectively connected with the two heat conduction plates, and the two heat conductors are respectively detachably connected with the two heat plates.
According to the utility model discloses an in the embodiment, relative being provided with on the interior diapire of casing and the interior roof rotates the connecting seat, refrigeration module with it rotates the connection to rotate the connecting seat.
According to an embodiment of the present invention, the hot plate and the cold plate are respectively provided with a first positioning groove and a second positioning groove;
the heat conductor is provided with a positioning lug, and the positioning lug is matched with the first positioning groove and the second positioning groove.
According to the utility model discloses an embodiment, first radiator unit and second radiator unit are made by the aluminium material.
According to the utility model discloses an embodiment, the heat conductor passes through the screw rod and installs on the casing.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a cross-sectional view of a heat sink assembly in accordance with an embodiment of the present invention;
fig. 3 is a partially enlarged schematic view at a in fig. 1.
Reference numerals:
a fan assembly 10;
a fan body 11;
a mounting member 12;
a refrigeration device 20;
a refrigeration assembly 21;
a refrigeration module 211;
a cold conductor 212;
a heat conductor 213;
a cold plate 214;
a second positioning groove 2141;
a hot plate 215;
a first positioning groove 2151;
a housing 22;
an air outlet 221;
a rotating connection base 222;
a heat dissipating component 30;
the first heat dissipation member 31;
a heat conductor 311;
positioning the bump 3111;
the first heat dissipation fins 312;
a second heat dissipation assembly 32;
a thermally conductive connector 321;
a thermally conductive mounting plate 322;
and second heat radiating fins 323.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 to 3, an embodiment of the present invention provides a novel cooling fan, including a fan assembly 10, a refrigeration device 20, and a heat dissipation assembly 30;
specifically, the fan assembly 10 includes a fan body 11 and a mounting member 12, an air outlet is formed at the bottom of the fan body 11, and the mounting member 12 is connected to the fan body 11 and is used for mounting the fan body 11 on a ceiling. The fan body 11 may be an axial flow fan in the prior art and is installed in the kitchen through the installation member 12, and of course, the fan body 11 may also be another type of fan, which is not limited in this embodiment.
The refrigerating device 20 comprises a shell 22 and a refrigerating assembly 21; the casing 22 is arranged at the bottom of the fan body 11, a through hole is formed in the upper end face, a plurality of air outlet holes 221 are formed in the lower end face, mounting holes are respectively formed in the left side wall and the right side wall, the through hole is vertically opposite to an air outlet in the fan body 11, and the air outlet holes 221 are vertically opposite to the through hole; two refrigeration assemblies 21 are provided, and the two refrigeration assemblies 21 are arranged in the casing 22 in a left-right opposite manner.
That is, the air blown out from the fan body 11 can enter the through hole on the casing 22 vertically opposite to the air outlet through the air outlet on the fan body, and the cooling component 21 is arranged in the through hole, so that the cooling capacity is produced by the cooling component 21, and when the air is blown out from the air outlet 221 at the bottom of the casing 22, the cooling capacity is accompanied, and further, the effect of blowing the cold air can be realized, and further, certain cooling is brought to the user.
The heat dissipation assembly 30 comprises a first heat dissipation assembly 31 and a second heat dissipation assembly 32, the number of the first heat dissipation assembly 31 and the number of the second heat dissipation assembly 32 are two, one end of each of the two first heat dissipation assemblies 31 is connected with the two refrigeration assemblies 21, and the other end of each of the two first heat dissipation assemblies 31 penetrates out of the two mounting holes; the two second heat dissipation assemblies 32 are respectively disposed above the two first heat dissipation assemblies 31, and the lower ends of the two second heat dissipation assemblies are connected to the first heat dissipation assemblies 31.
Both the first heat dissipation assembly 31 and the second heat dissipation assembly 32 can be used for dissipating heat of the refrigeration assembly 21, wherein the first heat dissipation assembly 31 is connected with the refrigeration assembly 21, so that the refrigeration assembly 21 can transfer heat to the first heat dissipation assembly 31 when in operation, the heat is dissipated through the first heat dissipation assembly 31, and the second heat dissipation assembly 32 is connected with the first heat dissipation assembly 31, so that the heat dissipation area of the whole heat dissipation assembly is increased, and the heat dissipation effect is improved. In addition, since the second heat dissipation assembly 32 is located above the first heat dissipation assembly 31, the heat dissipation effect can be improved without increasing the overall occupied space, and thus, the present invention is also applicable to kitchens with small space.
According to the utility model provides a refrigeration cooling fan can refrigerate the wind that blows off to make the wind that blows off be cold wind, thereby can improve the comfort level that the user used.
Advantageously, in an embodiment of the present invention, the first heat dissipation assembly 31 includes a heat conductor 311 and a plurality of first heat dissipation fins 312;
the inner end of the heat conductor 311 is connected with the refrigeration component 21;
the first heat dissipation fins 312 are disposed at the outer end of the heat conductor 311 from top to bottom at equal intervals.
Thus, the plurality of first heat dissipation fins 312 are arranged at the outer end of the heat conductor 311, so that the contact area between the heat conductor 311 and the air can be increased, and further the heat dissipation of the refrigeration assembly 21 is realized.
Advantageously, in one embodiment of the present invention, the second heat dissipation assembly 32 includes a heat conductive connector 321, a heat conductive mounting plate 322, and a plurality of second heat dissipation fins 323;
the heat conductive connector 321 is substantially U-shaped, and the upper and lower ends of the heat conductive connector are respectively connected to the first heat dissipating fin 312 at the uppermost end and the first heat dissipating fin 312 at the lowermost end;
the heat-conducting mounting plate 322 is disposed above the heat-conducting connecting member 321, and is vertically connected to the upper end of the heat-conducting connecting member 321;
the second heat dissipating fins 323 are uniformly spaced from top to bottom on the outer wall of the heat conducting mounting plate 322.
Preferably, a plurality of first heat dissipation fins 312 are connected to the middle of the heat conductive connection 321.
So, first radiator unit 31 can be with heat transfer for heat conduction connecting piece 321 when carrying out the heat to refrigeration assembly 21, and be connected with heat conduction mounting panel 322 on heat conduction connecting piece 321, and be provided with second radiating fin 323 on heat conduction mounting panel 322, consequently, the heat of transferring to heat conduction connecting piece 321 can be through second radiating fin 323 transfer to the air in, and then supplementary first radiator unit 31 dispels the heat, simultaneously, also can not increase whole occupation space.
Advantageously, in one embodiment of the present invention, both refrigeration assemblies 21 comprise a refrigeration module 211, a cold conductor 212, a heat conductor 213, a cold plate 214, and a hot plate 215;
the two cooling molds are oppositely arranged in the shell 22 from left to right;
the two cold conductors 212 are respectively arranged at the inner sides of the two refrigeration modules 211 and connected with the cold ends of the refrigeration modules 211;
the two heat conduction pieces 213 are respectively arranged at the outer sides of the two refrigeration modules 211 and connected with the hot ends of the refrigeration modules 211;
the two cold plates 214 are respectively connected with the two cold conduction plates, an air supply channel is formed between the two cold plates 214, and the air supply channel is opposite to the air outlet up and down;
the two thermal plates 215 are respectively connected to the two heat transfer plates, and the two heat conductors 311 are respectively detachably connected to the two thermal plates 215.
So, the cold volume that is produced by two refrigeration module 211's cold junction can transmit to cold plate 214 through cold conduction piece 212, and two cold plates 214 set up relatively, are formed with air supply channel between, consequently, the heat of two cold plates 214 transmissions can distribute to in the air supply channel, then follow the wind that fan body 11 blew out and blow out from exhaust vent 221 together, from the effect of realizing local cooling.
Advantageously, in another embodiment of the present invention, the inner bottom wall and the inner top wall of the housing 22 are oppositely provided with a rotary connecting seat 222, and the refrigeration module 211 is rotatably connected with the rotary connecting seat 222.
That is to say, the refrigeration module 211 can rotate in the vertical direction by rotating the connection seat 222, so that the cold plate 214 and the hot plate 215 indirectly connected to the cold end and the hot end of the refrigeration module 211 can be exchanged in position by rotating, specifically, when refrigeration is required, the refrigeration module 211 can be rotated to make the two cold plates 214 approach each other and form an air supply channel for supplying cold air, so that the cold energy transferred by the two cold plates 214 can be blown into a kitchen by the fan body 11, thereby cooling the local position; conversely, when heating is required, the cooling module 211 can be rotated to enable the two heat plates 215 to be adjacent to each other and form a blowing channel for blowing hot air, so that heat transferred by the two heat plates 215 can be blown into the kitchen through the fan body 11, thereby realizing temperature rise at a local position.
Advantageously, in some embodiments of the present invention, the hot plate 215 and the cold plate 214 are provided with a first positioning groove 2151 and a second positioning groove 2141, respectively;
the heat conductor 311 is provided with a positioning protrusion 3111, and the positioning protrusion 3111 is adapted to the first positioning groove 2151 and the second positioning groove 2141.
Preferably, the positioning protrusion 3111 is disposed at the center of the inner end surface of the heat conductor 311, and the first positioning groove 2151 and the second positioning groove 2141 are also disposed at the center of the hot plate 215 and the cold plate 214.
That is to say, when refrigerating, hot plate 215 links to each other with heat conductor 311, at this moment, because be equipped with first locating groove 2151 on it, then, location lug 3111 on the heat conductor 311 alright peg graft with first locating groove 2151, can make first heat dissipation component 31 contact with hot plate 215, and then realize the heat transfer, with dispel the heat to hot plate 215, simultaneously, because heat conductor 311 and first locating groove 2151 all are located respective central point, consequently, can carry on spacingly to refrigeration module 211, prevent that refrigeration module 211 from rotating and using after the influence. Correspondingly, when heating, the cold plate 214 is connected to the heat conductor 311, and since the heat conductor 311 and the second positioning groove 2141 are both located at the respective central positions, the refrigeration module 211 can be limited, thereby preventing the refrigeration module 211 from rotating and being used after being affected. So, adopt above-mentioned structure, can be so that heat conductor 311 and refrigeration module 211 are connected conveniently, possess limiting displacement simultaneously, and is easy to assemble, is favorable to the use.
Advantageously, in some embodiments of the present invention, the first heat dissipation assembly 31 and the second heat dissipation assembly 32 are both made of aluminum material.
Therefore, the first heat dissipation assembly 31 and the second heat dissipation assembly 32 have good heat dissipation effects, are relatively low in cost and are beneficial to use.
Advantageously, in further embodiments of the present invention, the thermal conductor 311 is mounted on the housing 22 by a screw.
So, install heat conductor 311 through the screw rod for heat conductor 311's installation is very convenient and firm, also is convenient for dismantle heat conductor 311 when follow-up needs heat simultaneously, conveniently rotates refrigeration module 211.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (8)
1. A novel refrigeration cooling fan is characterized by comprising:
the fan assembly comprises a fan body and a mounting piece, wherein an air outlet is formed in the bottom of the fan body, and the mounting piece is connected with the fan body and used for mounting the fan body on a ceiling;
the refrigeration device comprises a shell and a refrigeration assembly; the shell is arranged at the bottom of the fan body, a through hole is formed in the upper end face of the shell, a plurality of air outlet holes are formed in the lower end face of the shell, mounting holes are formed in the left side wall and the right side wall of the shell respectively, the through hole is vertically opposite to an air outlet in the fan body, and the air outlet holes are vertically opposite to the through hole; the two refrigeration components are arranged in the shell in a left-right opposite mode;
the cooling device comprises a cooling assembly, a first cooling assembly and a second cooling assembly, wherein the number of the cooling assembly is two, one end of each of the two cooling assemblies is connected with the corresponding refrigerating assembly, and the other end of each of the two cooling assemblies penetrates out of the corresponding mounting hole; the two second heat dissipation assemblies are respectively arranged above the two first heat dissipation assemblies, and the lower ends of the two second heat dissipation assemblies are connected with the first heat dissipation assemblies.
2. A novel cooling fan as claimed in claim 1, wherein the first heat dissipation assembly comprises a heat conductor and a plurality of first heat dissipation fins;
the inner end of the heat conductor is connected with the refrigerating assembly;
a plurality of first radiating fin from top to bottom interval even set up in the outer end of heat conductor.
3. A novel cooling fan as claimed in claim 2, wherein the second heat dissipation assembly comprises a heat conductive connector, a heat conductive mounting plate and a plurality of second heat dissipation fins;
the heat conduction connecting piece is of a U-shaped structure, and the upper end and the lower end of the heat conduction connecting piece are respectively connected with the first heat radiating fin positioned at the uppermost end and the first heat radiating fin positioned at the lowermost end;
the heat conduction mounting plate is arranged above the heat conduction connecting piece and is vertically connected with the upper end of the heat conduction connecting piece;
a plurality of second radiating fins from top to bottom the even setting in of interval on the outer wall of heat conduction mounting panel.
4. A novel refrigeration cooling fan as recited in claim 3 wherein both of said refrigeration components include a refrigeration module, a cold conductor, a heat conductor, a cold plate and a hot plate;
the two refrigerating modules are oppositely arranged in the shell left and right;
the two cold conduction pieces are respectively arranged at the inner sides of the two refrigeration modules and are connected with the cold ends of the refrigeration modules;
the two heat conduction pieces are respectively arranged at the outer sides of the two refrigeration modules and are connected with the hot ends of the refrigeration modules;
the two cold plates are respectively connected with the two cold conduction plates, an air supply channel is formed between the two cold plates, and the air supply channel is opposite to the air outlet up and down;
the two heat plates are respectively connected with the two heat conduction plates, and the two heat conductors are respectively detachably connected with the two heat plates.
5. A novel refrigeration cooling fan as recited in claim 4 wherein the inner bottom wall and the inner top wall of the housing are oppositely provided with a rotary connecting seat, and the refrigeration module is rotatably connected with the rotary connecting seat.
6. A novel refrigeration cooling fan as claimed in claim 5, wherein the hot plate and the cold plate are respectively provided with a first positioning groove and a second positioning groove;
the heat conductor is provided with a positioning lug, and the positioning lug is matched with the first positioning groove and the second positioning groove.
7. A novel cooling fan as claimed in claim 1, wherein the first and second heat dissipating components are made of aluminum material.
8. A novel refrigeration cooling fan as claimed in claim 2 wherein the heat conductor is mounted to the housing by a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020438762.0U CN212252988U (en) | 2020-03-30 | 2020-03-30 | Novel refrigeration cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020438762.0U CN212252988U (en) | 2020-03-30 | 2020-03-30 | Novel refrigeration cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212252988U true CN212252988U (en) | 2020-12-29 |
Family
ID=73985337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020438762.0U Expired - Fee Related CN212252988U (en) | 2020-03-30 | 2020-03-30 | Novel refrigeration cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212252988U (en) |
-
2020
- 2020-03-30 CN CN202020438762.0U patent/CN212252988U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20201229 |