CN113452149A - Wireless charging box - Google Patents
Wireless charging box Download PDFInfo
- Publication number
- CN113452149A CN113452149A CN202110671947.5A CN202110671947A CN113452149A CN 113452149 A CN113452149 A CN 113452149A CN 202110671947 A CN202110671947 A CN 202110671947A CN 113452149 A CN113452149 A CN 113452149A
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- charging
- coil
- side wall
- box body
- space
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a wireless charging box, comprising: the wireless charging box comprises a box body, a box cover, a charging coil group and a charging circuit, wherein the box cover is covered on the box body, a charging space is formed in the box body, the upper end surface of the box cover and the outer peripheral surface of the box body form a charging contact surface, interlayer spaces are formed in the side wall and the bottom plate of the box body, the charging coil group and the charging circuit are arranged in the interlayer spaces, the charging circuit is electrically connected with the charging coil group, the charging coils form charging magnetic fields with uniform energy density in a plurality of planes which are not parallel to each other, and the charging magnetic fields can cover the charging space and the charging contact surface; small-sized equipment such as a Bluetooth headset and an intelligent bracelet can be charged in the charging box, so that the loss is avoided; can be at the peripheral round of charging case for some great equipment charge, satisfy multiple demand of charging.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless charging box.
Background
The wireless charging technology is a technology for charging by utilizing an electromagnetic induction principle, a transmitting end and a receiving end are respectively provided with a coil, the transmitting coil is connected with a power supply in a wired mode to generate an electromagnetic signal, and the receiving coil receives the electromagnetic signal transmitted by the transmitting coil, so that the wireless charging equipment is charged.
At present, wireless charging is mostly realized by adopting a wireless charging panel, and a smart phone waits for a charging device to be placed on the wireless charging panel and fixed until the whole wireless charging process is completed. Therefore, the existing scheme has more limitations on wireless charging, does not support wireless charging for a plurality of devices to be charged simultaneously, and is poor in user experience.
Disclosure of Invention
In view of the above, the present invention provides a wireless charging box capable of simultaneously charging a plurality of products.
In order to achieve the above object, an aspect of the present invention to solve the above problems is to provide a wireless charging box, including:
the charging circuit comprises a box body, a box cover, a charging coil group and a charging circuit, wherein the box cover is covered on the box body, a charging space is formed in the box body, the upper end face of the box cover reaches the outer peripheral face of the box body to form a charging contact face, an interlayer space is formed in the side wall of the box body and the bottom plate of the box body, the charging coil group is arranged in the interlayer space, the charging circuit is electrically connected with the charging coil group, the charging coils form charging magnetic fields with uniform energy density in a plurality of non-parallel planes, and the charging space reaches the charging contact face.
Further, the box includes outer wall and inner wall, the outer wall with the inner wall is fixed, form between the outer wall with the inner wall the intermediate layer space, charging coil and charging circuit sets up in the intermediate layer space.
Furthermore, the interlayer space is provided with a bottom space and a side wall space surrounding the bottom space, the charging coils are arranged in the bottom space and the side wall space, and the charging coil group can at least form a charging magnetic field with uniform energy density in a plane parallel to the bottom of the box body and a plane parallel to the side wall of the box body.
Further, the charging coil group comprises a side wall coil and a horizontal coil, the side wall coil is parallel to the side wall of the box body, the horizontal coil is parallel to the bottom of the box body, and the side wall coil is electrically connected with the horizontal coil and the charging circuit.
Furthermore, the side wall coil and the horizontal coil adopt an integrated structure, a litz wire sequentially penetrates through the side wall space, and the horizontal coil parallel to the bottom of the box body and the side wall coil parallel to the side wall of the box body are formed in the side wall space.
Further, four side wall coils and one horizontal coil are provided, the four side wall coils are respectively parallel to the side walls of the box body in different directions, the four side wall coils 31 are respectively a first side wall coil M1, a second side wall coil M2, a third side wall coil M3 and a fourth side wall coil M4, the charging circuit comprises an inverter circuit, a first capacitor C1 and a double-pole double-throw switch S1, the output end of the inverter circuit is electrically connected with one end of the first capacitor C1, the other end of the first capacitor C1 is connected with one end of the horizontal coil 32, the other end of the horizontal coil 32 is electrically connected with one end of the first side wall coil M1, the other end of the first side wall coil M1 is electrically connected with one end of the second side wall coil M2, the other end of the second side wall coil M2 is electrically connected with the second movable contact and the third movable contact of the double-pole double-throw switch S1, a first movable contact and a fourth movable contact of the double-pole double-throw switch S1 are electrically connected with a first input end and a second input end of the inverter circuit, one end of the third side wall coil M3 is electrically connected with a first fixed contact of the double-pole double-throw switch S1, the other end of the third side wall coil M3 is electrically connected with one end of the fourth side wall coil M4, and the other end of the fourth side wall coil M4 is electrically connected with a second fixed contact of the double-pole double-throw switch S1.
Further, still include adjustment mechanism, adjustment mechanism includes the mount and rotates the knob, the mount sets up in the lateral wall space, the mount with lateral wall space inner wall is articulated, it wears to locate to rotate the knob the lateral wall of box and in the mount is fixed, the lateral wall coil is fixed on the mount, rotate the knob, make the mount rotates along the axis of setting for, makes the lateral wall coil deflects along setting for the axis to the angle of charging of adaptation equipment.
Furthermore, the fixing frame comprises an x-axis framework and a y-axis framework, the x-axis framework is vertically fixed with the y-axis framework, the rotating knob comprises an x-axis knob and a y-axis knob, the x-axis knob penetrates through the side wall of the box body and is fixed on the x-axis framework, the y-axis knob penetrates through the side wall of the box body and is fixed on the y-axis framework, and the side wall coil can rotate along the x axis by rotating the x-axis knob; rotating the y-axis knob causes the sidewall coil to rotate along the y-axis.
Further, be provided with the butt bulb on the inner wall, the mount with butt bulb corresponds position department be equipped with butt bulb assorted spherical recess, the butt bulb with the concave surface butt of spherical recess.
Compared with the prior art, the wireless charging box provided by the invention has the following beneficial effects:
the wireless charging box provided by the invention can select the charging position according to the requirement; small-sized equipment such as a Bluetooth headset and an intelligent bracelet can be charged in the charging box, so that the loss is avoided; can be at the peripheral round of charging case for some great equipment charge, satisfy multiple demand of charging.
Drawings
Fig. 1 is a schematic structural diagram of a wireless charging box according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an internal structure of a wireless charging box according to an embodiment of the present invention;
FIG. 3 is a schematic view of the adjustment mechanism;
fig. 4 is a schematic diagram of the adjustment mechanism in cooperation with a charging coil assembly;
FIG. 5 is a simplified circuit diagram of the charging circuit and the charging coil assembly;
FIG. 6 is a schematic current diagram of a first mode of charging coil assembly;
FIG. 7 is a schematic current diagram of a second mode of charging coil assembly;
fig. 8 is a schematic view of an integrated coil.
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 invention and are not intended to limit the invention.
Referring to fig. 1 to 5, a wireless charging box according to a first embodiment of the present invention includes:
the charging device comprises a box body 1, a box cover 2, a charging coil group 3 and a charging circuit, wherein the box cover 2 covers the box body 1, a charging space 11 is formed in the box body 1, the upper end face of the box cover 2 and the outer peripheral face of the box body 1 form a charging contact face, an interlayer space 12 is formed in the side wall of the box body 1 and the bottom plate, the charging coil group 3 is arranged in the interlayer space 12, the charging circuit is electrically connected with the charging coil group 3, and the charging coil 3 forms a charging magnetic field with uniform energy density in a plurality of planes which are not parallel to each other.
Specifically, the box body 1 comprises an outer wall 13 and an inner wall 14, the outer wall 13 is fixed to the inner wall 14, the interlayer space 12 is formed between the outer wall 13 and the inner wall 14, and the charging coil 3 and the charging circuit are arranged in the interlayer space 12.
Specifically, the interlayer space 12 has a bottom space 121 and a sidewall space 122 surrounding the bottom space 121, the charging coils 3 are disposed in the bottom space 121 and the sidewall space 122, and the charging coil group 3 can at least form a charging magnetic field with uniform energy density in a plane parallel to the bottom of the case 1 and a plane parallel to the sidewall of the case 1.
Form the top open-ended in the inner wall 14 charge space 11, when less object (like bracelet, wrist-watch) need charge, can put into the object that waits to charge space 11, charging coil group 3 forms the magnetic field that charges of energy density homogeneous in a plurality of planes, right the product in the charge space 11 charges.
Specifically, case lid 2 can be established by the lid on box 1, case lid 2 has a terminal surface 21 that charges, and is preferred, the terminal surface 21 that charges is located the upper end of case lid 2, and when great object (for example cell-phone, flat board) need charge, can establish case lid 2 lid on box 1, will wait to charge the object place charge on the terminal surface 21.
Specifically, the charging coil assembly 3 includes a sidewall coil 31 and a horizontal coil 32, the sidewall coil 31 is parallel to the sidewall of the box body 1, the horizontal coil 32 is parallel to the bottom of the box body 1, and the sidewall coil 31 and the horizontal coil 32 are electrically connected to the charging circuit.
In another embodiment, the sidewall coil 31 and the horizontal coil 32 are integrated, and a litz wire sequentially passes through the sidewall space 122, so that the horizontal coil 32 parallel to the bottom of the case 1 and the sidewall coil 31 parallel to the sidewall of the case 1 are formed in the sidewall space 122.
As shown in fig. 8, a litz wire is used to form magnetic induction coils on both side walls of the case 1, respectively.
In the present embodiment, there are four side wall coils 31 and one horizontal coil 32, and the four side wall coils 31 are respectively parallel to the side walls of the box body 1 in different directions.
The four sidewall coils 31 are respectively a first sidewall coil M1, a second sidewall coil M2, a third sidewall coil M3 and a fourth sidewall coil M4, the charging circuit includes an inverter circuit 41, a first capacitor C1 and a double-pole double-throw switch S1, an output end of the inverter circuit 41 is electrically connected with one end of the first capacitor C1, the other end of the first capacitor C1 is connected with one end of a horizontal coil 32, the other end of the horizontal coil 32 is electrically connected with one end of the first sidewall coil M1, the other end of the first sidewall coil M1 is electrically connected with one end of the second sidewall coil M2, the other end of the second sidewall coil M2 is electrically connected with a second movable contact and a third movable contact of the double-pole double-throw switch S1, the first movable contact and the fourth movable contact of the double-pole double-throw switch S1 are electrically connected with a first input end and a second input end of the inverter circuit 41, one end of the third sidewall coil M3 is electrically connected with a first fixed contact of the double-pole double-throw switch S1, the other end of the third side wall coil M3 is electrically connected to one end of the fourth side wall coil M4, and the other end of the fourth side wall coil M4 is electrically connected to the second stationary contact of the double-pole double-throw switch S1.
The first sidewall coil M1, the second sidewall coil M2, the third sidewall coil M3, the fourth sidewall coil M4 have two connection modes:
in the first mode: when the double-pole double-throw switch S1 is switched to the first moving contact and the third moving contact, the first sidewall coil M1, the second sidewall coil M2, the third sidewall coil M3 and the fourth sidewall coil M4 are connected in series, and the current flow direction is as shown in fig. 6;
in the second mode: when the double pole double throw switch S1 is switched to the second moving contact and the fourth moving contact, the first sidewall coil M1, the second sidewall coil M2, the third sidewall coil M3 and the fourth sidewall coil M4 are connected in series, but the current flow directions of the third sidewall coil M3 and the fourth sidewall coil M4 are opposite to the current flow direction in the first mode, and the current flow directions are as shown in fig. 6.
In order to guarantee the charging effect, generally let the coil parallel with by the inside coil of battery charging outfit, consequently, still include adjustment mechanism 5, adjustment mechanism 5 includes mount 51 and rotation knob 52, mount 51 sets up in lateral wall space 122, mount 51 with lateral wall space 122 inner wall is articulated, rotation knob 52 wear to locate the lateral wall of box 1 and in mount 51 is fixed, lateral wall coil 31 is fixed on mount 51, rotates rotation knob 52 makes mount 51 rotates along the axis of settlement, makes lateral wall coil 31 deflects along the axis of settlement to the angle of charging of adaptation equipment.
Further, the fixing frame 51 includes an x-axis frame and a y-axis frame, the x-axis frame and the y-axis frame are vertically fixed, the rotation knob 52 includes an x-axis knob and a y-axis knob, the x-axis knob is disposed through the sidewall of the box body 1 and fixed to the x-axis frame, the y-axis knob is disposed through the sidewall of the box body 1 and fixed to the y-axis frame, and the sidewall coil 31 can rotate along the x-axis by rotating the x-axis knob; turning the y-axis knob causes the sidewall coil 31 to rotate along the y-axis.
Further, in order to avoid unnecessary shaking of the fixing frame 51 during use, the inner wall 14 is provided with the abutting ball head 141, a spherical groove 511 matched with the abutting ball head 141 is arranged at a position corresponding to the abutting ball head 141 of the fixing frame 51, the abutting ball head 141 abuts against a groove surface of the spherical groove 511, the rotation of the fixing frame 51 cannot be influenced, and the fixing frame 51 can also be provided with a certain supporting function.
During the use, will wait that the little object of charging is placed inside box 1, place great object of waiting to charge on case lid 2 or the laminating box 1 outside is placed, can be through switching first switch S1 and the series-parallel connection between the coil is adjusted to single-pole double-throw S2, changes the effect of charging, through rotating mount 51, thereby realizes lateral wall coil 31' S angular adjustment to the realization with wait the better laminating of object of charging.
Compared with the prior art, the wireless charging box provided by the invention has the following advantages and innovativeness:
compared with a wireless electric energy transmission coil with three power supplies, the wireless electric energy transmission coil only needs one transmitting circuit, and the number of the transmitting circuits is reduced;
compared with an xyz orthogonal circular coil structure, the invention is provided with a horizontal coil, so that the magnetic field inside the geometry in the box body is reasonably used;
compared with a square coil structure, the invention reduces the wire section for steering, enhances the magnetic field in the z-axis direction, adds a coil connection mode capable of enhancing the internal magnetic field and can switch between the two connection modes;
the invention designs a wireless charging box based on the coil structure, and the charging position can be selected according to requirements. Small-sized equipment such as a Bluetooth headset and an intelligent bracelet can be charged in the charging box, so that the loss is avoided; a circle of charging box can be used for charging some larger devices;
the coil rotating bracket is designed, and can be used for a wireless charging box to realize fine adjustment of the coil in the opposite direction. In actual use, the charging efficiency is improved by rotating the coil direction.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A wireless charging case, comprising:
the charging circuit comprises a box body, a box cover, a charging coil group and a charging circuit, wherein the box cover is covered on the box body, a charging space is formed in the box body, the upper end face of the box cover reaches the outer peripheral face of the box body to form a charging contact face, an interlayer space is formed in the side wall of the box body and the bottom plate of the box body, the charging coil group is arranged in the interlayer space, the charging circuit is electrically connected with the charging coil group, the charging coils form charging magnetic fields with uniform energy density in a plurality of non-parallel planes, and the charging space reaches the charging contact face.
2. A wireless charging box according to claim 1, wherein:
the box includes outer wall and inner wall, the outer wall with the inner wall is fixed, form between the outer wall with the inner wall the intermediate layer space, charging coil reaches charging circuit sets up in the intermediate layer space.
3. A wireless charging box according to claim 2, wherein:
the interlayer space is provided with a bottom space and a side wall space surrounding the bottom space, the charging coils are arranged in the bottom space and the side wall space, and the charging coil group can at least form a charging magnetic field with uniform energy density in a plane parallel to the bottom of the box body and a plane parallel to the side wall of the box body.
4. A wireless charging box according to claim 3, wherein:
the charging coil group comprises a side wall coil and a horizontal coil, the side wall coil is parallel to the side wall of the box body, the horizontal coil is parallel to the bottom of the box body, and the side wall coil is electrically connected with the horizontal coil and the charging circuit.
5. The wireless charging box of claim 4, wherein:
the side wall coil and the horizontal coil are of an integrated structure, a litz wire sequentially penetrates through the side wall space, and the horizontal coil parallel to the bottom of the box body and the side wall coil parallel to the side wall of the box body are formed in the side wall space.
6. A wireless charging box according to claim 5, wherein:
the four side wall coils are respectively parallel to the side walls of the box body in different directions, the four side wall coils 31 are respectively a first side wall coil M1, a second side wall coil M2, a third side wall coil M3 and a fourth side wall coil M4, the charging circuit comprises an inverter circuit, a first capacitor C1 and a double-pole double-throw switch S1, the output end of the inverter circuit is electrically connected with one end of the first capacitor C1, the other end of the first capacitor C1 is connected with one end of the horizontal coil 32, the other end of the horizontal coil 32 is electrically connected with one end of the first side wall coil M1, the other end of the first side wall coil M1 is electrically connected with one end of the second side wall coil M2, the other end of the second side wall coil M2 is electrically connected with the second movable contact and the third movable contact of the double-pole double-throw switch S1, and the first movable contact of the double-pole double-throw switch S1 is electrically connected with the third movable contact, The fourth moving contact is electrically connected with the first input end and the second input end of the inverter circuit, one end of the third side wall coil M3 is electrically connected with the first fixed contact of the double-pole double-throw switch S1, the other end of the third side wall coil M3 is electrically connected with one end of the fourth side wall coil M4, and the other end of the fourth side wall coil M4 is electrically connected with the second fixed contact of the double-pole double-throw switch S1.
7. A wireless charging box according to claim 6, wherein:
still include adjustment mechanism, adjustment mechanism includes the mount and rotates the knob, the mount sets up in the lateral wall space, the mount with lateral wall space inner wall is articulated, it wears to locate to rotate the knob the lateral wall of box and in the mount is fixed, the lateral wall coil is fixed on the mount, rotate the knob, make the mount rotates along the axis of setting for, makes the lateral wall coil deflects along setting for the axis to the angle of charging of adaptation equipment.
8. A wireless charging box according to claim 7, wherein:
the fixing frame comprises an x-axis framework and a y-axis framework, the x-axis framework and the y-axis framework are vertically fixed, the rotating knob comprises an x-axis knob and a y-axis knob, the x-axis knob penetrates through the side wall of the box body and is fixed on the x-axis framework, the y-axis knob penetrates through the side wall of the box body and is fixed on the y-axis framework, and the side wall coil can rotate along the x axis by rotating the x-axis knob; rotating the y-axis knob causes the sidewall coil to rotate along the y-axis.
9. A wireless charging box according to claim 8, wherein:
the inner wall is provided with a butt ball head, a spherical groove matched with the butt ball head is arranged at the position of the fixing frame corresponding to the butt ball head, and the butt ball head is abutted to the groove surface of the spherical groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110671947.5A CN113452149B (en) | 2021-06-17 | 2021-06-17 | Wireless charging box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110671947.5A CN113452149B (en) | 2021-06-17 | 2021-06-17 | Wireless charging box |
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| Publication Number | Publication Date |
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| CN113452149A true CN113452149A (en) | 2021-09-28 |
| CN113452149B CN113452149B (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110671947.5A Active CN113452149B (en) | 2021-06-17 | 2021-06-17 | Wireless charging box |
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| CN (1) | CN113452149B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114938052A (en) * | 2022-06-02 | 2022-08-23 | 阿维塔科技(重庆)有限公司 | Wireless charging equipment and charging method thereof and automobile |
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| US20170179754A1 (en) * | 2015-12-21 | 2017-06-22 | Electronics And Telecommunications Research Institute | Wireless charging apparatus based on three-dimensional (3d) wireless charging zone |
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| CN114938052A (en) * | 2022-06-02 | 2022-08-23 | 阿维塔科技(重庆)有限公司 | Wireless charging equipment and charging method thereof and automobile |
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| Publication number | Publication date |
|---|---|
| CN113452149B (en) | 2022-08-16 |
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