CN216315617U - Atomizing body convenient to assemble and provided with heating ceramic core - Google Patents

Atomizing body convenient to assemble and provided with heating ceramic core Download PDF

Info

Publication number
CN216315617U
CN216315617U CN202122457924.2U CN202122457924U CN216315617U CN 216315617 U CN216315617 U CN 216315617U CN 202122457924 U CN202122457924 U CN 202122457924U CN 216315617 U CN216315617 U CN 216315617U
Authority
CN
China
Prior art keywords
atomizing
atomization
core
cover
ceramic core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202122457924.2U
Other languages
Chinese (zh)
Inventor
林光榕
郑贤彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou Happy Vaping Technology Ltd
Original Assignee
Huizhou Happy Vaping Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huizhou Happy Vaping Technology Ltd filed Critical Huizhou Happy Vaping Technology Ltd
Priority to CN202122457924.2U priority Critical patent/CN216315617U/en
Application granted granted Critical
Publication of CN216315617U publication Critical patent/CN216315617U/en
Priority to PCT/CN2022/110140 priority patent/WO2023061008A1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10Devices using liquid inhalable precursors
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40Constructional details, e.g. connection of cartridges and battery parts
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46Shape or structure of electric heating means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00Sprayers or atomisers specially adapted for therapeutic purposes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • A61M15/06Inhaling appliances shaped like cigars, cigarettes or pipes

Abstract

The utility model discloses an atomization body convenient to assemble and provided with a heating ceramic core, which comprises an atomization cover and the atomization core arranged in the atomization cover, wherein an atomization channel which is longitudinally communicated is arranged in the atomization cover, an atomization core containing cavity is expanded in the middle of the atomization channel, the atomization core is arranged in the atomization core containing cavity, a liquid supply hole is formed in the wall part of the atomization core containing cavity, a mist outlet is formed in the upper end of the atomization cover, an air inlet is formed in the lower end of the atomization cover, the mist outlet and the air inlet are respectively communicated with the atomization channel, the atomization core comprises a liquid storage body and the heating ceramic core, electrode leads are connected and arranged at two ends of the heating ceramic core, and the electrode leads are led out from the lower end of the atomization cover. The atomizer has the advantages of being simple in structure, convenient to assemble into the atomizer and beneficial to achieving automatic production.

Description

Atomizing body convenient to assemble and provided with heating ceramic core
Technical Field
The utility model relates to the technical field of electronic atomization equipment, in particular to an atomization body which is convenient to assemble and provided with a heating ceramic core.
Background
Electronic atomization equipment generally includes battery pack and atomizer, installs the battery in the battery pack, and the battery supplies power for the atomizer, and the atomizer is including installing the atomizing core on the atomizing seat, and the atomizing core can be with treating atomizing solution be atomizing liquid heating atomizing and become vapour fog or aerosol when the circular telegram.
The electronic atomization device specifically comprises an electronic smoking set, a medical liquid medicine atomization device and the like, and the basic task of the electronic atomization device is to provide a heating process to convert tobacco liquid, liquid medicine and other solutions stored in the electronic atomization device into vapor, aerosol, steam and the like.
The existing atomizer in the market comprises an atomizer shell, an atomizing cover, an atomizing core, an atomizing seat, a base, a connecting electrode and the like, the number of accessories is large, the structure is complex, and when the atomizing core is installed in the atomizer, the process is complex, and the automatic production is difficult to realize.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide an atomization body which is convenient to assemble and is provided with a heating ceramic core.
The technical scheme of the utility model is realized as follows: the utility model provides a convenient equipment and have atomizing body of ceramic core that generates heat, locate in electronic atomization equipment's atomizer, including atomizing cover and the atomizing core of locating in the atomizing cover, the inside of atomizing cover is equipped with the atomizing passageway that vertically link up, the middle part extension of atomizing passageway is equipped with atomizing core and holds the chamber, atomizing core locates atomizing core holds the intracavity, atomizing core holds the wall portion in chamber and is equipped with the confession liquid hole, atomizing cover's upper end is equipped with out fog interface and lower extreme and is equipped with the interface that admits air, go out fog interface and admit air the interface respectively with atomizing passageway intercommunication, atomizing core includes the stock solution body and the ceramic core that generates heat, the ceramic core that generates heat is made integrative by porous ceramic and heating resistor, heating resistor's both ends are connected and are equipped with the electrode lead wire, the electrode lead wire warp the atomizing cover lower extreme is drawn forth.
Preferably, the atomizing cover can be split into a first atomizing cover and a second atomizing cover in half, a convex part and a concave part are respectively arranged on the wall part of the joint of the first atomizing cover and the second atomizing cover, and the convex part is tightly inserted into the concave part to connect the first atomizing cover and the second atomizing cover into a whole.
Preferably, the seam at the joint of the first atomization cover and the second atomization cover is welded into a whole by means of laser welding or ultrasonic welding.
Preferably, a sealing strip is arranged at the joint of the first atomization cover and the second atomization cover.
Preferably, the liquid storage body is set to be a cylindrical body, a liquid storage body through hole communicated with the atomizing channel is vertically formed in the middle of the cylindrical body, and the heating ceramic core is arranged on the surface of the inner wall of the liquid storage body through hole.
Preferably, a sealing sleeve is further arranged between the liquid storage body and the connecting position of the cavity of the atomizing core, and a sealing sleeve through hole is formed in the position, located at the liquid supply hole, of the sealing sleeve.
Preferably, the liquid storage body is made of non-woven fabrics, porous ceramics, organic cotton, glass fiber materials, polyester fiber materials, nylon fiber materials or acetate fiber materials.
The utility model has the following beneficial effects: the utility model relates to an atomization body which is convenient to assemble and provided with a heating ceramic core, the atomization body is arranged in a shell of an atomizer, the atomization body is provided with a mist outlet interface and a gas inlet interface, when the atomization body is arranged in the atomizer, the mist outlet interface is only required to be connected to a suction nozzle of the atomizer shell, the gas inlet interface is required to be connected to a bottom interface of the atomizer shell, and a cavity between the atomization body and the atomizer shell is used for storing atomized liquid, so that the atomization body can be very conveniently assembled in the atomizer, and only an atomization channel and an atomization core are required to be arranged in the atomization body.
Drawings
FIG. 1 is a front view of an atomizing body according to an embodiment of the present invention;
FIG. 2 is a perspective view of a first atomization cap in accordance with an embodiment of the present invention;
FIG. 3 is a perspective view of a second atomization cap in accordance with an embodiment of the present invention;
FIG. 4 is a perspective view of a reservoir according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of an atomizing body according to an embodiment of the present invention;
FIG. 6 is an exploded perspective view of an atomizing body according to an embodiment of the present invention;
FIG. 7 is a perspective view of an atomizing mask in accordance with an embodiment of the present invention;
FIG. 8 is a second perspective view of the first atomizing mask in accordance with the present embodiment;
FIG. 9 is a second perspective view of a second atomization cap in accordance with an embodiment of the present invention;
FIG. 10 is a first cross-sectional view of an atomizing mask in accordance with an embodiment of the present invention;
FIG. 11 is a second cross-sectional view of the atomizing mask of the present embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The utility model is convenient for assembly and has the atomization body of the ceramic core of generating heat, for the convenience of following the description, as shown in figure 1, the atomization body is placed vertically upwards, the description about "upper and lower, upper and lower ends, upper and lower, lower and left and right" of each part, etc. described herein, all refer to the position relation of each part when the atomization body is placed vertically upwards. The atomized liquid refers to a solution to be heated and atomized.
Examples
As shown in fig. 1 to 3, the atomization body which is convenient to assemble and has the heating ceramic core according to the embodiment of the present invention is installed in an atomizer of an electronic atomization apparatus, and includes an atomization cover 1 and an atomization core 2 disposed in the atomization cover, the atomization cover 1 can be split into two halves, i.e., a first atomization cover 11 and a second atomization cover 12, in which the first atomization cover 11 and the second atomization cover 12 are combined and connected to form the atomization cover 1, and the atomization core 2 is conveniently installed in the atomization cover by the combination and connection manner. The inside of atomizing cover 1 is equipped with vertically to link up atomizing passageway 13 that link up promptly from top to bottom, and the middle part extension of atomizing passageway 13 is equipped with atomizing core and holds chamber 14, and atomizing core 2 is located atomizing core and holds intracavity 14, and atomizing core holds the wall portion that chamber 14 was equipped with liquid supply hole 140, and the upper end of atomizing cover 1 is equipped with out fog interface 15 and the lower extreme is equipped with inlet air interface 16, goes out fog interface 15 and inlet air interface 16 respectively with atomizing passageway 13 intercommunication. The wall part of the joint of the first atomization cover 11 and the second atomization cover 12 is respectively provided with a convex part 17 and a concave part 18, and the convex part 17 is tightly inserted into the concave part 18 to connect the first atomization cover 11 and the second atomization cover 12 into a whole. After the connection, the seam of the joint of the first atomization cover 11 and the second atomization cover 12 is welded by laser welding or ultrasonic welding to be integrated for sealing, so that the atomized liquid outside the atomization body is prevented from leaking to the atomization channel inside the atomization body. In other embodiments, the connection between the first atomizing cover 11 and the second atomizing cover 12 may be sealed by a sealing strip, so as to prevent the atomized liquid outside the atomizing body from leaking into the atomizing passage inside the atomizing body.
As shown in fig. 4-6, the atomizing core 2 includes a liquid storage body 21 and a heating ceramic core 22, the heating ceramic core 22 is made of porous ceramic and a heating resistor (not shown), two ends of the heating resistor are connected with electrode leads 23, the electrode leads 23 are led out through the lower end of the atomizing cover 1, and the heating ceramic core 22 can also absorb the atomizing liquid and can generate heat when being electrified. When the atomizing core 2 works, the atomized liquid introduced from the liquid supply hole 140 is heated and atomized into aerosol, and the air entering through the air inlet port 16 drives the aerosol to be discharged through the mist outlet port 15. The liquid storage body 21 is a cylindrical body, a liquid storage body through hole 210 communicated with the atomizing channel 13 is vertically arranged in the middle of the cylindrical body, and the heating ceramic core 22 is arranged on the inner wall surface of the liquid storage body through hole 210. The liquid storage body 21 is made of nonwoven fabric. The heating ceramic core 22 is made of porous ceramic material and is integrated with a heating resistor, and two ends of the heating resistor are connected with electrode leads 23.
As shown in fig. 5, when the atomizing body of this embodiment works, the atomized liquid outside the atomizing body enters and permeates through the liquid supply hole 140 of the atomizing cover 1 and is stored in the liquid storage body 21, the heating ceramic core 22 generates heat after being electrified, the atomized liquid penetrating through the liquid storage body 21 to the heating ceramic core 22 is heated and atomized into aerosol, and simultaneously, as shown by a continuous arrow, the outside air is sucked upwards into the atomizing channel 13 at the lower part through the air inlet port 16 at the bottom, the atomized aerosol flows upwards along with the air, and is discharged through the atomizing channel 13 at the upper part and then through the mist outlet port 15, and finally is sucked into the user's mouth through the suction nozzle of the atomizer.
As shown in fig. 7-11, in another embodiment, the atomizing mask 1 can be split into the first atomizing mask 11 and the second atomizing mask 12 in half, that is, the first atomizing mask 11 and the second atomizing mask 12 are connected up and down to form the atomizing mask 1. Similarly, the inside of the atomizing cover 1 is provided with an atomizing channel 13 which is longitudinally communicated, the middle of the atomizing channel 13 is extended to form an atomizing core accommodating cavity 14, the atomizing core 2 is arranged in the atomizing core accommodating cavity 14, the wall of the atomizing core accommodating cavity 14 is provided with a liquid supply hole 140, the upper end of the atomizing cover 1 is provided with a mist outlet interface 15, the lower end of the atomizing cover 1 is provided with an air inlet interface 16, and the mist outlet interface 15 and the air inlet interface 16 are respectively communicated with the atomizing channel 13. The wall part of the joint of the first atomization cover 11 and the second atomization cover 12 is respectively provided with a convex part 17 and a concave part 18, and the convex part 17 is tightly inserted into the concave part 18 to connect the first atomization cover 11 and the second atomization cover 12 into a whole.
In other embodiments, the liquid storage body 21 may also be made of porous ceramic, or organic cotton, or glass fiber material, or polyester fiber material, or nylon fiber material, or acetate fiber material.
In other embodiments, a sealing sleeve (not shown) is further disposed between the connection between the liquid storage body 21 and the atomizing core cavity 14, a sealing sleeve through hole is disposed at the position of the sealing sleeve located at the liquid supply hole 140, and the sealing sleeve is used for sealing a gap between the liquid storage body 21 and the atomizing core cavity 14 to prevent the atomized liquid from directly leaking to the atomizing channel.
The atomization body which is convenient to assemble and provided with the heating ceramic core is arranged in the shell of the atomizer, the atomization body is provided with the mist outlet interface and the air inlet interface, when the atomization body is arranged in the atomizer, the mist outlet interface is only connected to the suction nozzle of the atomizer shell, the air inlet interface is connected to the bottom interface of the atomizer shell, and the cavity between the atomization body and the atomizer shell is used for storing atomized liquid, so that the atomization body can be very conveniently assembled in the atomizer, and only the atomization channel and the atomization core are needed to be arranged in the atomization body
The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Various modifications and alterations may occur to those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and alterations should be accorded the broadest interpretation so as to encompass all such modifications and alterations.

Claims (7)

1. The utility model provides a convenient equipment and have atomizing body of ceramic core that generates heat, locate in electronic atomization equipment's atomizer, its characterized in that, including atomizing cover and the atomizing core of locating in the atomizing cover, atomizing cover's inside is equipped with the atomizing passageway that vertically link up, atomizing passageway's middle part extension is equipped with atomizing core and holds the chamber, atomizing core locates atomizing core holds the intracavity, atomizing core holds the wall portion in chamber and is equipped with the confession liquid hole, atomizing cover's upper end is equipped with out fog interface and lower extreme and is equipped with the interface that admits air, go out fog interface and admit air the interface respectively with atomizing passageway intercommunication, atomizing core includes the stock solution body and the ceramic core that generates heat, the ceramic core that generates heat is made integrative by porous ceramic and heating resistor, heating resistor's both ends are connected and are equipped with the electrode lead wire, the electrode lead wire warp the atomizing cover lower extreme is drawn forth.
2. The atomizing body with the conveniently assembled and heat-generating ceramic core according to claim 1, wherein the atomizing hood is split into a first atomizing hood and a second atomizing hood, a convex portion and a concave portion are respectively disposed on a wall portion of a joint of the first atomizing hood and the second atomizing hood, and the convex portion is tightly inserted into the concave portion to connect the first atomizing hood and the second atomizing hood into a whole.
3. The atomizing body with the heat-generating ceramic core and convenient to assemble according to claim 2, wherein the joint of the first atomizing cover and the second atomizing cover is welded into a whole by laser welding or ultrasonic welding.
4. The atomizing body which is convenient to assemble and has the heating ceramic core according to claim 2, wherein a sealing strip is arranged at the joint of the first atomizing cover and the second atomizing cover.
5. The atomizing body with the conveniently assembled and heat-generating ceramic core according to claim 1, wherein the liquid storage body is a cylindrical body, a liquid storage body through hole communicated with the atomizing channel is vertically arranged in the middle of the cylindrical body, and the heat-generating ceramic core is arranged on the inner wall surface of the liquid storage body through hole.
6. The atomizing body with the conveniently assembled and heat-generating ceramic core according to claim 1, wherein a sealing sleeve is further disposed between the connection of the liquid storage body and the cavity of the atomizing core, and a sealing sleeve through hole is disposed at the liquid supply hole of the sealing sleeve.
7. The atomizing body with a heat-generating ceramic core and convenient to assemble according to claim 1, wherein the liquid storage body is made of non-woven fabric, porous ceramic, organic cotton, glass fiber material, polyester fiber material, nylon fiber material or acetate fiber material.
CN202122457924.2U 2021-10-12 2021-10-12 Atomizing body convenient to assemble and provided with heating ceramic core Active CN216315617U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202122457924.2U CN216315617U (en) 2021-10-12 2021-10-12 Atomizing body convenient to assemble and provided with heating ceramic core
PCT/CN2022/110140 WO2023061008A1 (en) 2021-10-12 2022-08-04 Atomization body convenient to assemble and having heating ceramic core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122457924.2U CN216315617U (en) 2021-10-12 2021-10-12 Atomizing body convenient to assemble and provided with heating ceramic core

Publications (1)

Publication Number Publication Date
CN216315617U true CN216315617U (en) 2022-04-19

Family

ID=81175867

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122457924.2U Active CN216315617U (en) 2021-10-12 2021-10-12 Atomizing body convenient to assemble and provided with heating ceramic core

Country Status (2)

Country Link
CN (1) CN216315617U (en)
WO (1) WO2023061008A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113892682A (en) * 2021-10-12 2022-01-07 惠州市新泓威科技有限公司 Atomizing body convenient to assemble
CN114917436A (en) * 2022-05-07 2022-08-19 声海电子(深圳)有限公司 Electronic Chinese herbal medicine liquid atomizing device
WO2023061008A1 (en) * 2021-10-12 2023-04-20 惠州市新泓威科技有限公司 Atomization body convenient to assemble and having heating ceramic core
WO2023061006A1 (en) * 2021-10-12 2023-04-20 惠州市新泓威科技有限公司 Easy-to-assemble atomization body provided with spiral heating wire

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9861132B2 (en) * 2013-12-31 2018-01-09 Shenzhen First Union Technology Co., Ltd. Atomizer and electronic cigarette having same
EP3162403B1 (en) * 2016-01-16 2021-03-03 Shenzhen First Union Technology Co., Ltd. Atomizer and electronic cigarette having same
CN208550033U (en) * 2018-06-22 2019-03-01 徐云林 Ceramic atomization core, atomizer and electronic cigarette
CN210782910U (en) * 2019-08-12 2020-06-19 深圳市合元科技有限公司 Atomizing core subassembly, atomizer and electron cigarette
CN212325378U (en) * 2020-05-09 2021-01-12 深圳市森克维普科技有限公司 Novel reconfigurable finished product atomizing core that generates heat
CN112931973A (en) * 2021-01-29 2021-06-11 深圳市康泓威科技有限公司 Atomizer with atomizing core provided with sleeve
CN216315617U (en) * 2021-10-12 2022-04-19 惠州市新泓威科技有限公司 Atomizing body convenient to assemble and provided with heating ceramic core

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113892682A (en) * 2021-10-12 2022-01-07 惠州市新泓威科技有限公司 Atomizing body convenient to assemble
WO2023061008A1 (en) * 2021-10-12 2023-04-20 惠州市新泓威科技有限公司 Atomization body convenient to assemble and having heating ceramic core
WO2023061006A1 (en) * 2021-10-12 2023-04-20 惠州市新泓威科技有限公司 Easy-to-assemble atomization body provided with spiral heating wire
CN114917436A (en) * 2022-05-07 2022-08-19 声海电子(深圳)有限公司 Electronic Chinese herbal medicine liquid atomizing device

Also Published As

Publication number Publication date
WO2023061008A1 (en) 2023-04-20

Similar Documents

Publication Publication Date Title
CN216315617U (en) Atomizing body convenient to assemble and provided with heating ceramic core
CN216453383U (en) Atomization body convenient to assemble and provided with heating metal net
CN216315618U (en) Atomization body convenient to assemble and provided with spiral heating wire
CN216165138U (en) Atomization body convenient to assemble and provided with liquid guide strip
CN113892682A (en) Atomizing body convenient to assemble
CN108576938B (en) Atomizer with integrated horizontal atomizing core and electronic cigarette thereof
WO2018130023A1 (en) Electronic cigarette atomizer
CN109330029B (en) Electronic cigarette atomizer
CN212911688U (en) Atomizer and aerosol generating device thereof
CN212393863U (en) Disposable electronic atomization device
CN111671152A (en) Disposable electronic atomization device
CN111671151A (en) Disposable electronic atomization device for pre-sale liquid injection
WO2023109220A1 (en) Atomizer having hollowed-out atomization cover
CN214129814U (en) Atomizer with central mist-suction channel and integrated atomizing assembly
CN113439878A (en) Electronic atomization assembly
CN112956745A (en) Atomizer and electronic cigarette
CN217771480U (en) Simple electronic cigarette
CN213307433U (en) Disposable electronic atomization device for pre-sale liquid injection
CN214129804U (en) Disposable electronic atomization device convenient for liquid injection
CN213215330U (en) Atomizer and aerosol generating device thereof
CN213663666U (en) Electronic atomization device convenient for liquid injection
CN211431065U (en) Atomizer and aerosol generating device thereof
CN217986685U (en) Atomizer with simple oil injection mode
CN217885106U (en) Atomizing core structure, atomizer and aerosol generating device
CN216493519U (en) Atomizer with fretwork atomizer

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant