CN217335210U - Wireless charging structure - Google Patents
Wireless charging structure Download PDFInfo
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- CN217335210U CN217335210U CN202220720650.3U CN202220720650U CN217335210U CN 217335210 U CN217335210 U CN 217335210U CN 202220720650 U CN202220720650 U CN 202220720650U CN 217335210 U CN217335210 U CN 217335210U
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- wireless
- wireless charging
- transmitting coil
- electrically connected
- charging structure
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to the technical field of charging, concretely relates to wireless charging structure, include: a transmission interface; the wireless charging device comprises a wireless charging body, a wireless charging unit and a wireless charging unit, wherein a wireless transmitting coil is installed inside the wireless charging body; one end of the transmission line is electrically connected with the wireless charging body, and the other end of the transmission line is electrically connected with the transmission interface; the wireless control PCB is arranged in the wireless charging body and is electrically connected with the wireless transmitting coil; the input end of the buck-boost adjusting PCB is electrically connected with the transmission interface, and the output end of the buck-boost adjusting PCB is electrically connected with the wireless control PCB through a transmission line; to sum up this application only installs wireless control PCB board in this internal mode of wireless charging through adopting to can effectively reduce the degree that the body of wireless charging sends out the boiling hot in the charging process, guarantee the speed of charging.
Description
Technical Field
The application relates to the technical field of charging, in particular to a wireless charging structure.
Background
With the progress of charging technology, wireless charging is more and more widely applied, and electronic devices such as mobile phones, watches and earphones gradually become a wireless charging mode; the wireless body that charges among the current wireless charging structure has wireless transmitting coil, and the corresponding battery charging outfit of treating is last to be provided with wireless receiving coil, when the battery charging outfit of treating charges, only need treat battery charging outfit place on the wireless body that charges can, will produce electromagnetic induction between wireless transmitting coil and the wireless receiving coil this moment to the battery charging outfit of treating charges.
However, in the prior art, because wireless control PCB board and buck-boost regulation PCB board are all installed in the wireless body that charges to lead to the wireless body that charges to send out to scald seriously in the charging process, and then reduce the charging speed.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a wireless charging structure to solve among the prior art because wireless control PCB board and buck-boost adjust the PCB board and all install in wireless this internal that charges, thereby lead to wireless charging body in the charging process to send out to scald seriously, and then reduce the technical problem of the speed of charging.
Technical scheme (I)
In order to achieve the above object, the present application provides a wireless charging structure, including:
a transmission interface;
the wireless charging device comprises a wireless charging body, a wireless charging unit and a wireless charging unit, wherein a wireless transmitting coil is installed inside the wireless charging body;
one end of the transmission line is electrically connected with the wireless charging body, and the other end of the transmission line is electrically connected with the transmission interface;
the wireless control PCB is arranged in the wireless charging body and is electrically connected with the wireless transmitting coil;
and the input end of the buck-boost regulating PCB is electrically connected with the transmission interface, and the output end of the buck-boost regulating PCB is electrically connected with the wireless control PCB through a transmission line.
As one of the alternatives of the present technical solution, the wireless charging body includes: the wireless control PCB board is arranged in the bottom shell, and the wireless transmitting coil is arranged on one side, facing the upper cover, of the wireless control PCB board.
As an alternative of this solution, the periphery of the wireless transmitting coil is further installed with a magnet array.
As one of the alternatives of the technical scheme, an annular supporting seat is further arranged in the bottom shell, a placing edge is convexly arranged at the inner ring of the annular supporting seat, the magnet array is installed in the annular supporting seat, and the wireless control PCB is installed at the inner ring through the placing edge.
As one of the optional solutions of the present technical solution, a ferrite layer is further disposed between the wireless control PCB board and the wireless transmitting coil.
As one of the alternatives of this technical solution, a placement groove is formed on one side of the ferrite layer facing the wireless transmitting coil, a limiting portion is further convexly provided in the placement groove, and the wireless transmitting coil is mounted in the placement groove through the limiting portion.
As one of the optional schemes of the technical scheme, a containing groove is formed in the surface, away from the upper cover, of the bottom shell, and a support is rotationally connected in the containing groove.
As one of the alternatives of the technical scheme, a plurality of heat dissipation holes are further formed in the accommodating groove, and a waterproof breathable film is attached to one side, away from the support, of each heat dissipation hole.
As one of the alternatives of the technical scheme, the plastic protective sleeve and the metal protective sleeve are sequentially sleeved on the outer side of the buck-boost adjusting PCB.
As one of the optional schemes of the technical scheme, one end of the transmission line, which is close to the buck-boost regulation PCB, is provided with a wire protection sleeve.
(II) advantageous effects
Compared with the prior art, the application has the following beneficial effects:
the application provides a wireless charging structure specifically includes: a transmission interface; the wireless charging device comprises a wireless charging body, a wireless charging unit and a wireless charging unit, wherein a wireless transmitting coil is installed inside the wireless charging body; one end of the transmission line is electrically connected with the wireless charging body, and the other end of the transmission line is electrically connected with the transmission interface; the wireless control PCB is arranged in the wireless charging body and is electrically connected with the wireless transmitting coil; the input end of the buck-boost adjusting PCB is electrically connected with the transmission interface, and the output end of the buck-boost adjusting PCB is electrically connected with the wireless control PCB through a transmission line; to sum up this application only installs wireless control PCB board in this internal mode of wireless charging through adopting to can effectively reduce the degree that the body of wireless charging sends out the boiling hot in the charging process, guarantee the speed of charging.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for a person skilled in the art to obtain other drawings without inventive exercise based on the drawings, wherein:
fig. 1 is a schematic diagram of a wireless charging structure after explosion of a buck-boost regulating PCB;
fig. 2 is a schematic diagram illustrating a wireless charging structure according to the present application;
fig. 3 is an exploded view of a wireless charging body in a wireless charging structure according to the present application;
fig. 4 is a cross-sectional view of the present application showing the cradle deployed in a wireless charging configuration;
FIG. 5 is a schematic view of the present application illustrating the cooperation of a waterproof breathable membrane and a heat sink in a wireless charging structure;
fig. 6 is a circuit connection block diagram illustrating a wireless charging structure according to the present application.
In the figure: 1. a transmission interface; 2. a wireless charging body; 3. a wireless transmitting coil; 4. a wireless control PCB board; 5. the voltage is increased and decreased to adjust the PCB; 6. a bottom case; 7. an upper cover; 8. a magnet array; 9. an annular supporting seat; 10. a ferrite layer; 11. a storage groove; 12. a support; 13. a plastic protective sleeve; 14. a metal protective sheath; 15. a wire protecting sleeve; 16. a transmission line; 17. a control unit; 18. waterproof ventilated membrane.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The present application will now be described in further detail with reference to the accompanying drawings and detailed description:
in order to solve among the prior art because wireless control PCB board 4 and buck-boost regulation PCB board 5 all install in wireless charging body 2 to lead to wireless charging body 2 in the charging process to send out to scald seriously, and then reduce the technical problem of the speed of charging, as shown in fig. 1-6, this application provides a wireless charging structure, include:
the power adapter comprises a transmission interface 1 connected with a power adapter, wherein the power adapter can be used for connecting commercial power to obtain electric power, and specifically, when the power adapter is connected with the commercial power, the voltage with a fixed value can be transmitted to the transmission interface 1; an exemplary Type-C transmission interface can be set; more specifically, the transmission interface 1 may read information of the power adapter to determine the maximum output power that can be output, and more specifically, the maximum output power is determined according to the fixed output voltage of the power adapter, which is not described herein for the prior art.
One end of the transmission line 16 is electrically connected to the wireless charging body 2, and the other end is electrically connected to the transmission interface 1.
The wireless control PCB board 4 is installed in the wireless charging body 2 and is electrically connected with the wireless transmitting coil 3, specifically, a control unit 17 and a full-bridge circuit are integrated on the wireless control PCB board 4, more specifically, the input end of the full-bridge circuit is electrically connected with the control unit 17, and the output end of the full-bridge circuit is electrically connected with the wireless transmitting coil 3; wherein, the full-bridge circuit can adjust the operating voltage of wireless transmitting coil 3 output based on the control of the control unit 17, and then output according to the operating voltage matched with the equipment to be charged.
The input end of the buck-boost regulating PCB board 5 is electrically connected with the transmission interface 1, and the output end of the buck-boost regulating PCB board is electrically connected with the wireless control PCB board 4 through a transmission line 16; more specifically, the output end of the buck-boost regulating PCB board 5 is electrically connected with the input end of the full-bridge circuit, wherein the buck-boost regulating PCB board 5 regulates the output voltage from the transmission interface 1 according to the instruction sent by the control unit 17, so as to regulate the output voltage to be the output voltage matched with the device to be charged, and transmit the output voltage to the full-bridge circuit through the transmission line 16, and finally output to the wireless transmitting coil 3 through the full-bridge circuit for output.
Specifically, after the wireless transmitting coil 3 is attached to a wireless receiving coil of the device to be charged, the wireless transmitting coil 3 receives a power request sent by the wireless receiving coil, the control unit 17 controls the boost-buck regulation PCB 5 to regulate the output voltage from the transmission interface 1 according to the power request, so as to modulate the output voltage into a voltage value matched with the power request after the boost or buck operation, and finally, the modulated target output voltage is transmitted to the full-bridge circuit through the transmission line 16 and finally output to the wireless transmitting coil 3 through the full-bridge circuit for output; in conclusion, the above structure is adopted to cooperate with the charging device to be charged with different power requirements, so that the adaptability of the wireless charging structure claimed by the application is improved; in addition, this application only installs the mode in wireless body 2 that charges through the adoption with wireless control PCB board 4, that is to say, places step-up and step-down regulation PCB board 5 between transfer chain and transmission interface 1 to can effectively reduce the degree that wireless body 2 that charges in the charging process sent out the boiling hot, guarantee the speed of charging.
Before the above inventive concept is proposed, a person skilled in the art has proposed a new attempt to arrange the wireless transmitting coil 3 in the transmission line 16, but the output of the wireless transmitting coil 3 is an alternating current, so that the magnetic field generated around the wireless transmitting coil 3 is easily interfered by the surrounding metal objects, and the transmission effect is finally affected; and adopt this technical problem of solution that the design of this embodiment can be fine, specifically be, the current that the step-up and step-down regulation PCB board 5 carried for full-bridge circuit through transmission line 16 is the direct current all the time, that is to say the current of transmission is the direct current all the time in the transmission line 16 to can effectively avoid by the interference of metal object on every side, guarantee transmission effect and charging efficiency.
According to an embodiment of the present application, in order to protect the buck-boost regulator PCB 5, as shown in fig. 1 and 2, a plastic protective sleeve 13 is sleeved on an outer side of the buck-boost regulator PCB 5; in order to further improve the connection strength at this position, a metal protective sleeve 14 may be sleeved outside the plastic protective sleeve 13.
According to an embodiment of the present application, in order to increase the flexibility of the soft and hard transition portion of the transmission line 16 to protect the buck-boost regulator PCB 5, a wire sheath 15 is disposed at one end of the transmission line 16 close to the buck-boost regulator PCB 5.
In the above embodiment, as shown in fig. 3 and 4, the wireless charging body 2 includes: the wireless control PCB comprises a bottom shell 6 and an upper cover 7 which are connected in a buckling mode, a wireless control PCB 4 is installed in the bottom shell 6, and a wireless transmitting coil 3 is installed on one side, facing the upper cover 7, of the wireless control PCB 4.
According to an embodiment of the application, in order to guarantee that the wireless receiving coil and the wireless transmitting coil 3 that set up in waiting to charge the equipment are accurate counterpoint, as shown in fig. 3, magnet array 8 is still installed to the periphery of wireless transmitting coil 3, and is preferred, magnet array 8 is also installed to the periphery of wireless receiving coil, when need treating to charge the equipment, need not to consider the position of wireless transmitting coil 3, only need to wait that the equipment of charging is close to wireless charging body 2 can, this moment under magnet array 8's interact, can realize wireless transmitting coil 3 and wireless receiving coil's accurate location.
According to an embodiment of the present application, in order to reduce the volume of the wireless charging body 2, as shown in fig. 3 and 4, an annular supporting seat 9 is further disposed in the bottom case, a placing edge is convexly disposed at an inner ring of the annular supporting seat 9, the magnet array 8 is installed in the annular supporting seat 9, and the wireless control PCB 4 is installed at the inner ring through the placing edge.
According to an embodiment of the application, in order to avoid the wireless transmitting coil 3 from breaking and scratching the wireless control PCB 4, a protective layer is arranged between the wireless transmitting coil 3 and the wireless control PCB 4, preferably, the wireless control PCB 4 is made of a flexible material, and the flexible material has good conductive performance, specifically, one side of the protective layer close to the wireless control PCB 4 is bonded with the wireless control PCB 4, and the wireless transmitting coil 3 is electrically connected with the wireless control PCB 4 through the protective layer.
Further, a ferrite layer 10 is arranged between the wireless control PCB 4 and the wireless transmitting coil 3, preferably, the size of the ferrite layer 10 is equal to that of the wireless control PCB 4; the magnetic field intensity of the wireless transmitting coil 3 can be enhanced under the action of the ferrite layer 10, and meanwhile, the magnetic convergence effect is high.
In a specific embodiment, in order to further reduce the volume of the wireless charging body 2, a placing groove is formed on one side of the ferrite layer 10 facing the wireless transmitting coil 3, a limiting portion is further convexly arranged in the placing groove, the wireless transmitting coil 3 is installed in the placing groove through the limiting portion, and for example, the size of the limiting portion should be smaller than or equal to the inner diameter of the wireless transmitting coil 3, so as to ensure that the wireless transmitting coil 3 is normally detached; preferably, the size of the wireless transmitting coil 3 is matched with that of the placing groove, so that the wireless transmitting coil 3 can be effectively prevented from shaking in the placing groove, the wireless transmitting coil 3 is further damaged, and the transmission effect is influenced; further, this application adopts the design of spacing portion can promote the stability that wireless transmitting coil 3 installed in the standing groove.
During the assembly, at first install annular supporting seat 9 in the drain pan, later install magnet array 8 in annular supporting seat 9, wireless control PCB board 4 is through placing along installing in the inner ring department of annular supporting seat 9, later places ferrite layer 10 in the outside of wireless control PCB board 4, later with wireless transmitting coil 3 through spacing portion install in the standing groove that ferrite layer 10 formed, it can with upper cover 7 and drain pan lock at last.
In another specific embodiment, because the ferrite layer 10 has a lower sintering temperature, it can be sintered at 900 ℃ or lower simultaneously with the conductive paste forming the wireless transmitting coil 3, so as to achieve co-firing of the upper cover 7, the wireless transmitting coil 3 and the ferrite layer 10 of the wireless charging device to form a combination; in conclusion, the design of this embodiment can save glue adhesion between upper cover 7 and wireless transmitting coil 3 and between wireless transmitting coil 3 and ferrite layer 10, is difficult to generate heat, and electric energy conversion efficiency is better.
According to one embodiment of the application, a containing groove 11 is formed in the surface of the bottom shell, which is far away from the upper cover 7, and a support 12 is rotatably connected in the containing groove 11; on one hand, the bracket 12 in the embodiment can be matched with the magnet array 8, so that charging of equipment to be charged of an inclined or transverse screen can be realized, and when the bracket 12 is not needed, for example, a wireless charging structure needs to be stored, the bracket 12 only needs to be rotated into the storage groove 11; in addition, when the support 12 is unfolded, the wireless charging body 2 can be cooled by natural convection of air, and heat dispersion capability is further improved.
In order to further improve the heat dissipation capability of the wireless transmitting coil 3, a heat dissipation structure is disposed in the wireless receiving slot 11, and in a specific embodiment, in order to ensure that only air can enter the wireless charging body 2 through the heat dissipation structure and moisture and the like cannot enter the wireless charging body 2 through the heat dissipation structure, as shown in fig. 5, the heat dissipation structure is composed of a plurality of heat dissipation holes and a waterproof breathable film 18, wherein the plurality of heat dissipation holes are arranged in the receiving slot 11 in a rectangular array, and the waterproof breathable film 18 is attached to one side of the plurality of heat dissipation holes away from the bracket 12, wherein the diameter of each heat dissipation hole is set as small as possible, so that on one hand, as many heat dissipation holes as possible can be disposed in the receiving slot 11, and on the other hand, external sharp foreign matters can be effectively prevented from entering the heat dissipation holes, thereby puncturing the waterproof breathable film 18; specifically, the waterproof breathable film 18 is also called breathing paper, is a very thin layer of novel polymer waterproof material, and is provided with a plurality of micropores thereon, so that gas molecules can smoothly enter the wireless charging body 2 through the micropores due to the small volume of the gas molecules, and the heat of the wireless transmitting coil 3 is taken out, thereby further reducing the heat of the wireless transmitting coil 3; meanwhile, because the volume ratio of the liquid molecule is large, the molecular tension on the surface of the liquid molecule can prevent the liquid molecule from passing through the micropores, so that the design of the waterproof breathable film 18 in the embodiment can ensure that only the gas molecule passes through the heat dissipation holes and the liquid molecule cannot smoothly pass through the heat dissipation holes, and the design of the embodiment can play a waterproof heat dissipation effect, thereby increasing the natural convection of air and accelerating the heat transfer generated in the wireless charging body 2.
In another specific embodiment, the heat dissipation structure may be configured as a plurality of blind holes, the plurality of blind holes are formed in the accommodating groove 11 in a rectangular array, the design of the blind holes in this embodiment can increase the heat dissipation efficiency by increasing the heat dissipation area, and meanwhile, the design of the blind holes in this embodiment can also prevent external liquid molecules or foreign matters from entering the wireless charging body 2 to damage the internal devices thereof.
The embodiments in the present specification are all described in a progressive manner, and some of the embodiments are mainly described as different from other embodiments, and the same and similar parts among the embodiments can be referred to each other.
It is noted that in the description and claims of the present application and in the above-mentioned drawings, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Also, the terms "comprises," "comprising," and "having," as well as any variations thereof or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The foregoing are merely exemplary embodiments of the present application and are presented to enable those skilled in the art to understand and practice the present application. Various modifications and changes to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A wireless charging structure, comprising:
a transmission interface (1);
the wireless charging device comprises a wireless charging body (2), wherein a wireless transmitting coil (3) is installed inside the wireless charging body;
one end of the transmission line (16) is electrically connected with the wireless charging body (2), and the other end of the transmission line is electrically connected with the transmission interface (1);
the wireless control PCB board (4) is installed in the wireless charging body (2) and is electrically connected with the wireless transmitting coil (3);
and the input end of the buck-boost regulating PCB (5) is electrically connected with the transmission interface (1), and the output end of the buck-boost regulating PCB is electrically connected with the wireless control PCB (4) through the transmission line (16).
2. The wireless charging structure according to claim 1, wherein the wireless charging body (2) comprises: the wireless control device comprises a bottom shell (6) and an upper cover (7) which are connected in a buckling mode, wherein a wireless control PCB (4) is installed in the bottom shell (6), and a wireless transmitting coil (3) is installed on one side, facing the upper cover (7), of the wireless control PCB (4).
3. The wireless charging structure according to claim 2, wherein the periphery of the wireless transmitting coil (3) is further mounted with a magnet array (8).
4. The wireless charging structure according to claim 3, wherein an annular supporting seat (9) is further disposed in the bottom case, a placing edge is protruded at an inner ring of the annular supporting seat (9), the magnet array (8) is installed in the annular supporting seat (9), and the wireless control PCB (4) is installed at the inner ring through the placing edge.
5. The wireless charging structure according to claim 2, characterized in that a ferrite layer (10) is further arranged between the wireless control PCB board (4) and the wireless transmission coil (3).
6. The wireless charging structure according to claim 5, wherein a placement groove is formed on one side of the ferrite layer (10) facing the wireless transmitting coil (3), a limiting portion is further protruded in the placement groove, and the wireless transmitting coil (3) is mounted in the placement groove through the limiting portion.
7. The wireless charging structure according to claim 2, wherein a receiving groove (11) is formed on a surface of the bottom case away from the upper cover (7), and a support (12) is rotatably connected to the receiving groove (11).
8. The wireless charging structure according to claim 7, wherein a plurality of heat dissipation holes are further formed in the accommodating groove (11), and a waterproof breathable film (18) is attached to one side of the heat dissipation holes, which is far away from the bracket (12).
9. The wireless charging structure of claim 1, wherein the buck-boost regulating PCB board (5) is sleeved with a plastic protective sleeve (13) and a metal protective sleeve (14) in sequence.
10. The wireless charging structure according to claim 1, wherein one end of the transmission line (16) near the buck-boost regulating PCB board (5) is provided with a wire sheath (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220720650.3U CN217335210U (en) | 2022-03-29 | 2022-03-29 | Wireless charging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220720650.3U CN217335210U (en) | 2022-03-29 | 2022-03-29 | Wireless charging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217335210U true CN217335210U (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220720650.3U Active CN217335210U (en) | 2022-03-29 | 2022-03-29 | Wireless charging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217335210U (en) |
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2022
- 2022-03-29 CN CN202220720650.3U patent/CN217335210U/en active Active
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