CN110635532A - Wearable electronic device - Google Patents
Wearable electronic device Download PDFInfo
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- CN110635532A CN110635532A CN201910921081.1A CN201910921081A CN110635532A CN 110635532 A CN110635532 A CN 110635532A CN 201910921081 A CN201910921081 A CN 201910921081A CN 110635532 A CN110635532 A CN 110635532A
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- receiving coil
- power receiving
- coil
- wearable electronic
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to wearable electronic equipment, and relates to the technical field of electronic equipment. The main technical scheme adopted is as follows: a wearable electronic device, comprising: the wireless charging device comprises a main body, a charging unit and a wireless charging circuit, wherein a secondary battery and a wireless charging circuit connected with the secondary battery are arranged in the main body; the wearing part is connected with the main body and is configured to enclose a closed annular space; the power receiving coil is arranged in the wearing part and is connected with the wireless charging circuit, and the power receiving coil forms a communicated coil when the wearing part encloses an annular space; the receiving coil is used for being coupled with a magnetic field of a power transmission coil of the wireless charger, receiving magnetic induction current of the wireless charger and converting the magnetic induction current into electric energy to charge the secondary battery through the wireless charging circuit. The power receiving coil is arranged in the wearing part, so that the power receiving coil is provided with a larger annular coil, the magnetic field coupling with the power transmission coil in the wireless charger is increased, and the charging speed is accelerated.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to wearable electronic equipment.
Background
Along with intelligent wearing equipment's popularization, the use convenience of equipment is more and more taken an important consideration by the user, and wherein wireless charging technology is just for satisfying the user to develop for the equipment is swift charges.
However, during wireless charging, a power receiving coil needs to be arranged on the device so as to be capable of being matched with a power transmitting coil in a wireless charger, so that the power transmitting coil can generate a certain current in the power receiving coil through electromagnetic induction based on alternating current with a certain frequency, and further charge a battery.
Therefore, the above technical problems are urgently needed to be solved.
Disclosure of Invention
The invention mainly aims to provide wearable electronic equipment, which can solve the problem that wireless charging of intelligent wearable equipment with small volume is slow in the prior art.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the present invention, a wearable electronic device is provided, which includes:
the wireless charging device comprises a main body, a charging unit and a wireless charging circuit, wherein a secondary battery and a wireless charging circuit connected with the secondary battery are arranged in the main body;
a wearing part connected with the main body and configured to enclose a closed annular space;
a power receiving coil provided in the wearing member and connected to the wireless charging circuit, the power receiving coil forming a communicating coil when the wearing member encloses an annular space;
the receiving coil is used for being coupled with a magnetic field of a power transmission coil of a wireless charger, receiving magnetic induction current of the wireless charger, and converting the magnetic induction current into electric energy to charge the secondary battery through the wireless charging circuit.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Optionally, the wearable electronic device described above, wherein the wearable component is a flexible strip;
the strip-shaped power receiving coil which is disconnected is provided with a first connecting end and a second connecting end, and when the wearing part encloses an annular space, the first connecting end and the second connecting end are connected to form a communicated annular coil.
Optionally, in the wearable electronic device, a first fitting portion and a second fitting portion are respectively disposed at two ends of the strip-shaped wearing part;
the first connecting end of the power receiving coil is connected with the first matching part, and the second connecting end of the power receiving coil is connected with the second matching part;
the first matching part and the second matching part can be connected to form an annular space by the wearing part.
Optionally, in the wearable electronic device, the first mating portion and the second mating portion are a first magnetic attraction portion and a second magnetic attraction portion, respectively;
the first connecting end of the power receiving coil is arranged in the first magnetic suction part in a penetrating mode, and the second connecting end of the power receiving coil is arranged in the second magnetic suction part in a penetrating mode;
when the wearing part is enclosed into an annular space by the first magnetic absorption part and the second magnetic absorption part, the end part of the first connecting end is attached to the end part of the second connecting end to enable the power receiving coil to form a communicated annular coil.
Optionally, in the wearable electronic device, an end of the first connection end and an end of the first magnetic absorption part have a preset distance, a groove is formed at the end of the first magnetic absorption part, an end of the second connection end protrudes out of the end of the second magnetic absorption part by the preset distance, and a protrusion is formed at the end of the second magnetic absorption part.
Optionally, in the wearable electronic device, the number of the first connection ends is the same as the number of turns of the power receiving coil, a plurality of grooves are formed at the end of the first magnetic attraction part, the number of the second connection ends is the same as the number of turns of the power receiving coil, and a plurality of protrusions are formed at the end of the second magnetic attraction part.
Optionally, in the wearable electronic device, the first mating portion is a first latch, the second mating portion is a second latch, and the first latch and the second latch are detachably connected;
the first connecting end of the power receiving coil is connected with the first lock catch, and the second connecting end of the power receiving coil is connected with the second lock catch;
the first lock catch and the second lock catch can be locked to enable the wearing part to enclose an annular space.
Optionally, the wearable electronic device further comprises a controller, wherein the controller is connected to the left earphone and the right earphone, and the controller is connected to the controller through a connecting wire;
the controller is used for receiving wireless audio signals and driving the left earphone and the right earphone to sound through the connecting line.
Optionally, in the wearable electronic device, the first fitting portion is disposed at an end of the left earphone facing away from the sound outlet end, and the second fitting portion is disposed at an end of the right earphone facing away from the sound outlet end.
Alternatively, the wearable electronic apparatus described above, wherein the power receiving coil is bonded to a surface of the connecting wire in a multi-beam weave.
Alternatively, the wearable electronic apparatus described above, wherein the power receiving coil is detachably provided in the wearing part.
By means of the technical scheme, the wearable electronic equipment at least has the following advantages:
the wearable electronic equipment provided by the embodiment of the invention is characterized in that the wearable part is provided with the receiving coil, the wearable part can enclose the annular space and maintain a relative position relation with at least one part of the body of a user, so that the receiving coil can form the annular coil without occupying other spaces of the wearable electronic equipment, namely, the volume of the wearable electronic equipment cannot be increased by the arrangement of the receiving coil, and the annular space formed by the wearable part can be worn on the body of the user, so that the annular space cannot be too small, the receiving coil can be provided with the relatively large annular coil, the magnetic field coupling with the power transmission coil in the wireless charger can be increased, the charging power is improved, the charging speed is increased, and the use requirement of the user on the wireless charging function is met.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a wearable electronic device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a wearable electronic device provided in FIG. 1 with wearable components enclosing a closed annular space;
fig. 3 is a schematic structural diagram of another wearable electronic device provided by an embodiment of the invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the wearable electronic device according to the present invention, the detailed description, the structure, the features and the effects thereof are described in the following with reference to the accompanying drawings and the preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As shown in fig. 1 to 3, an embodiment of the present invention provides a wearable electronic device, including: a main body 1, a wearing member 2, and a power receiving coil 3; a secondary battery and a wireless charging circuit connected with the secondary battery are arranged in the main body 1; a wearing part 2, wherein the wearing part 2 is connected with the main body 1 and is configured to enclose a closed annular space (as shown in fig. 2); the power receiving coil 3 is arranged in the wearing part 2 and connected with the wireless charging circuit, and the power receiving coil 3 forms a communicated coil when the wearing part 2 encloses an annular space; the receiving coil 3 is used for being coupled with a magnetic field of a power transmission coil of a wireless charger, receiving magnetic induction current of the wireless charger, and converting the magnetic induction current into electric energy to charge the secondary battery through the wireless charging circuit.
In particular, the wearable electronic device may be any electronic device having the wearing part 2, for example, may be a wireless headset, a smart bracelet, a smart watch, a smart necklace, a virtual reality device, an augmented reality device, or the like. The main body 1, i.e. the main body part of the wearable electronic device, may include computing, controlling and executing components, and the main body 1 and the wearing component 2 may be connected in various ways, such as through connection, hinge connection, adhesion or rotation shaft connection.
The secondary battery provided in the main body 1 is a battery capable of being charged and discharged reciprocally, and may be a nickel hydrogen battery, a nickel cadmium battery, a lead-acid battery, a lithium ion battery, or the like. The wireless charging circuit can convert the magnetic induction current received by the power receiving coil 3 into electric energy and store the electric energy in a circuit of the secondary battery, and the specific structure of the wireless charging circuit can be known by technical personnel, and is not described herein.
The wearing member 2 is a member capable of forming a maintained state and a non-maintained state, i.e., a wearing state and a non-wearing state, and an annular space can be formed only when the wearing member 2 is in the maintained state. For example, in an electronic device in the form of a wristwatch, the strap may be released, and in this case, the strap may be in a non-retained state, and in this case, the strap may be in a retained state when the strap is fastened, and may be worn on a part of the body of the user, for example, on the wrist, neck, or head, and the annular space formed by the wearing part 2 may be adjustable in size, for example, by engaging the lock catch with a different keyhole. Furthermore, the wearing part 2 may form an approximately ring-shaped space with an opening when in the holding state, for example, an electronic device in the form of a bracelet, the wearing part 2 forms an approximately ring-shaped wearing structure with an opening, the wearing structure can also form a stable wearing relationship with the wrist of the user, when charging is required, the two ends of the wearing part 2 can be closed to form a ring-shaped state, and the power receiving coil 3 is further formed into a conductive loop coil for wireless charging.
The power receiving coil 3 may have a structure having a plurality of turns, and when the wearing member 2 is in a ring-shaped structure, the power receiving coil 3 may be a complete ring-shaped coil, and when the wearing member 2 is in a structure capable of being opened and closed to form a ring-shaped space, the power receiving coil 3 may be in a disconnected structure, and when the wearing member 2 forms a ring-shaped space, the disconnected portions are combined to form a complete ring-shaped coil. The power receiving coil 3 may be provided in the middle of the wearing member 2 or may be a surface.
According to the wearable electronic device provided by the embodiment of the invention, the power receiving coil 3 is arranged in the wearing part 2, the wearing part 2 can enclose the annular space and at least one part of the body of a user to maintain a relative position relationship, so that the power receiving coil 3 can form the annular coil without occupying other spaces of the wearable electronic device, namely, the volume of the wearable electronic device cannot be increased due to the arrangement of the power receiving coil 3, and the annular space formed by the wearing part 2 can be worn on the body of the user, so that the annular space cannot be too small, the power receiving coil 3 can have a relatively large annular coil, the magnetic field coupling with the power transmitting coil in the wireless charger can be increased, the charging power is improved, the charging speed is increased, and the use requirement of the user on the wireless charging function is met.
As shown in fig. 2, in the specific implementation, the wearing part 2 is a flexible strip; the strip-shaped power receiving coil 3 in a broken state has a first connection end (not shown in the figure) and a second connection end (not shown in the figure), and when the wearing part 2 encloses an annular space, the first connection end and the second connection end are connected to form a communicated annular coil.
Specifically, the wearing part 2 may be a conventional belt, a silicone belt, or a multi-section metal belt as long as it can be flexibly bent to form a ring shape. The power receiving coil 3 may be a loop coil, and then disconnected from any position, and two ends of the disconnected position are used as the first connection end and the second connection end, so that the power receiving coil 3 may also be a strip-shaped structure similar to the wearing component 2, so as to be disposed in the wearing component 2.
Further, two ends of the strip-shaped wearing part 2 are respectively provided with a first matching part 21 and a second matching part 22; a first connection end of the power receiving coil 3 is connected to the first mating portion 21, and a second connection end is connected to the second mating portion 22; when the first engaging portion 21 and the second engaging portion 22 are connected to enclose the wearing member 2 into an annular space, the end of the first connection end and the end of the second connection end are connected to form an annular coil that communicates with the power receiving coil 3.
Specifically, the first matching portion 21 and the second matching portion 22 are structures for connecting the wearing component 2 into an annular space, but in order to make the wearing component 2 be worn on the wearing part of the user in a reciprocating manner, the first matching portion 21 and the second matching portion 22 need to be detached in a reciprocating manner, and the connection structure between the first matching portion 21 and the second matching portion 22 is not limited, for example, as shown in fig. 1, the first matching portion 21 and the second matching portion 22 may be a first magnetic absorption portion and a second magnetic absorption portion, respectively, so that the first matching portion 21 and the second matching portion 22 can be connected through a quick magnetic absorption manner and can also be quickly separated through an external force, or as shown in fig. 2, the first matching portion 21 and the second matching portion 22 may also be a first lock catch and a second lock catch, respectively, and the first lock catch and the second lock catch can be detachably connected.
Wherein, when first cooperation portion 21 and second cooperation portion 22 were respectively for first magnetism portion of inhaling and second magnetism portion of inhaling, first magnetism portion of inhaling and second magnetism portion of inhaling can be block, lamellar body or ring structure respectively, for example first magnetism portion of inhaling and second magnetism portion of inhaling can be ring structure, perhaps has the lamellar body or the block of through-hole, receive electric coil 3's first link can wear to establish in the first magnetism portion, the second link can wear to establish in the second magnetism portion of inhaling, like this first magnetism portion of inhaling with second magnetism portion of inhaling makes when wearing part 2 and enclosing into the annular space, the tip of first link with the tip laminating of second link makes receive electric coil 3 forms the ring coil of intercommunication.
As shown in fig. 1, in a specific implementation, an end of the first connection end has a predetermined distance from an end of the first magnetic absorption part, a groove 211 is formed at the end of the first magnetic absorption part, an end of the second connection end protrudes out of the end of the second magnetic absorption part by the predetermined distance, and a protrusion 221 is formed at the end of the second magnetic absorption part.
Specifically, in order to ensure that the first connection end and the second connection end can be stably connected, the preferable configuration is that the groove 211 and the protrusion 221 are provided, so that when the first magnetic absorption portion and the second magnetic absorption portion are attracted to form an annular space, the protrusion 221 can be matched with the groove 211, the end of the second connection end can be inserted into the groove 211 and attached to the end of the first connection end at the bottom of the groove, and the power receiving coil 3 forms a communicated annular coil.
Further, in implementation, the first connection end and the second connection end of the power receiving coil 3 may be respectively configured as one metal connection end, that is, the connection ends of the plurality of wire harnesses in the power receiving coil 3 are integrated together. Or, can with the quantity of first link with the same that the number of turns set up of receiving coil 3 the tip of first magnetism portion of inhaling forms a plurality ofly recess 211, will the quantity of second link with the same that the number of turns set up of receiving coil 3 the tip of second magnetism portion of inhaling forms a plurality ofly protruding 221, like this a plurality of first link protruding 221 insert with a plurality of second link forms the recess 211 back, receiving coil 3 forms complete toroidal coil.
When the first and second mating portions 21 and 22 are first and second latches, respectively, as shown in fig. 3, the first and second latches may be any detachable latch structure, such as a plug-and-socket latch structure. At this time, the first lock catch and the second lock catch may be made of metal, and the first connection end of the power receiving coil 3 is connected to the first lock catch, and the second connection end is connected to the second lock catch, so that when the wearing part 2 is enclosed to form an annular space by the first lock catch and the second lock catch, the first connection end and the second connection end are connected to form a communicated annular coil by the power receiving coil 3.
As shown in fig. 1 and fig. 2, in a specific implementation, the wearable electronic device may be a wireless headset, in which case, a connection wire (not shown in the figure) is disposed in the wearable part 2, and the wearable part 2 encloses an approximately annular structure when worn, the main body 1 includes a left headset 12, a right headset 13 and a controller 11, the wearable part 2 is connected to the left headset 12, the right headset 13 and the controller 11, and the connection wire connects the controller 11 to the left headset 12 and the right headset 13; the controller 11 is configured to receive a wireless audio signal, and drive the left earphone 12 and the right earphone 13 to sound through the connection line.
Specifically, the scheme that the first matching part 21 and the second matching part 22 of the wearing part 2 are the first magnetic attraction part and the second magnetic attraction part respectively can be applied to the wireless earphone, the first magnetic attraction part is arranged at one end of the left earphone 12 deviating from the sound emitting end, the second magnetic attraction part is arranged at one end of the right earphone 13 deviating from the sound emitting end, therefore, when the user needs to charge the wireless earphone, as long as two ends of the wearing part 2 are worn, namely, the first magnetic attraction parts and the second magnetic attraction parts on the two earphones are attracted, the power receiving coil 3 can be communicated to form an annular coil, the power receiving coil 3 can be provided with a relatively large annular coil, the magnetic field coupling of the power transmission coil in the wireless charger can be increased, the charging power is improved, and the charging speed is accelerated.
In a specific implementation, the power receiving coil 3 is bonded to the surface of the connecting wire in a multi-beam weave.
Specifically, weave receiving coil 3 and connecting wire together, be convenient for receiving coil 3 in wearing the setting of part 2, increase receiving coil 3's the ability of accepting the bending repeatedly simultaneously, for example can weave the wire rod of multi-beam receiving coil 3 behind the connecting wire surface of wireless earphone, as whole carry out to mould plastics and wrap up silica gel or plastic unloading on receiving coil 3 and connecting wire and form and wear part 2.
In an implementation, the power receiving coil 3 is detachably disposed in the wearing part 2.
Specifically, an elastic groove may be formed in the wearing part 2 along the length direction, and then the power receiving coil 3 is wrapped therein, or a through hole may be formed in the middle of the wearing part 2, and then the power receiving coil 3 in the off state is inserted into the through hole. Thus, the power receiving coil 3 can be quickly replaced, and the wearable electronic equipment can be maintained conveniently.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. A wearable electronic device, comprising:
the wireless charging device comprises a main body, a charging unit and a wireless charging circuit, wherein a secondary battery and a wireless charging circuit connected with the secondary battery are arranged in the main body;
a wearing part connected with the main body and configured to enclose a closed annular space;
a power receiving coil provided in the wearing member and connected to the wireless charging circuit, the power receiving coil forming a communicating coil when the wearing member encloses an annular space;
the receiving coil is used for being coupled with a magnetic field of a power transmission coil of a wireless charger, receiving magnetic induction current of the wireless charger, and converting the magnetic induction current into electric energy to charge the secondary battery through the wireless charging circuit.
2. The wearable electronic device of claim 1,
the wearing part is in a flexible strip shape;
the strip-shaped power receiving coil which is disconnected is provided with a first connecting end and a second connecting end, and when the wearing part encloses an annular space, the first connecting end and the second connecting end are connected to form a communicated annular coil.
3. The wearable electronic device of claim 2,
a first matching part and a second matching part are respectively arranged at two ends of the strip-shaped wearing part;
the first connecting end of the power receiving coil is connected with the first matching part, and the second connecting end of the power receiving coil is connected with the second matching part;
the first matching part and the second matching part can be connected to form an annular space surrounded by the wearing part.
4. The wearable electronic device of claim 3,
the first matching part and the second matching part are respectively a first magnetic part and a second magnetic part;
the first connecting end of the power receiving coil is arranged in the first magnetic suction part in a penetrating mode, and the second connecting end of the power receiving coil is arranged in the second magnetic suction part in a penetrating mode;
when the wearing part is enclosed into an annular space by the first magnetic absorption part and the second magnetic absorption part, the end part of the first connecting end is attached to the end part of the second connecting end to enable the power receiving coil to form a communicated annular coil.
5. The wearable electronic device of claim 4,
the end part of the first connecting end and the end part of the first magnetic suction part are provided with a preset distance, a groove is formed at the end part of the first magnetic suction part, the end part of the second connecting end protrudes out of the end part of the second magnetic suction part, the preset distance is formed at the end part of the second magnetic suction part, and a protrusion is formed at the end part of the second magnetic suction part.
6. The wearable electronic device of claim 5,
the quantity of first link with receiving coil's number of turns is the same the tip of first magnetism portion of inhaling forms a plurality ofly the recess, the quantity of second link with receiving coil's number of turns is the same the tip of second magnetism portion of inhaling forms a plurality ofly the arch.
7. The wearable electronic device of claim 3,
the first matching part is a first lock catch, the second matching part is a second lock catch, and the first lock catch and the second lock catch can be detachably connected;
the first connecting end of the power receiving coil is connected with the first lock catch, and the second connecting end of the power receiving coil is connected with the second lock catch;
the first lock catch and the second lock catch can be locked to enable the wearing part to enclose an annular space.
8. A wearable electronic device according to any one of claims 3-6,
the main body comprises a left earphone, a right earphone and a controller, the wearing part is connected with the left earphone, the right earphone and the controller, a connecting wire is arranged in the wearing part, and the controller is connected with the left earphone and the right earphone through the connecting wire;
the controller is used for receiving wireless audio signals and driving the left earphone and the right earphone to sound through the connecting line.
9. The wearable electronic device of claim 8,
the first matching part is arranged at one end of the left earphone, which is back to the sound-emitting end, and the second matching part is arranged at one end of the right earphone, which is back to the sound-emitting end.
10. The wearable electronic device of claim 8,
the power receiving coil is combined on the surface of the connecting wire in a multi-beam weaving mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910921081.1A CN110635532A (en) | 2019-09-27 | 2019-09-27 | Wearable electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910921081.1A CN110635532A (en) | 2019-09-27 | 2019-09-27 | Wearable electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110635532A true CN110635532A (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910921081.1A Pending CN110635532A (en) | 2019-09-27 | 2019-09-27 | Wearable electronic device |
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| CN204391836U (en) * | 2015-02-13 | 2015-06-10 | 夏竹兵 | intelligent bracelet |
| CN105372984A (en) * | 2014-08-29 | 2016-03-02 | 三星电子株式会社 | Smart watch for enabling wireless charging |
| CN107005093A (en) * | 2014-12-23 | 2017-08-01 | 英特尔公司 | Along the wireless power receiving coil of the ring of device |
| CN208272712U (en) * | 2018-05-31 | 2018-12-21 | 珠海惠威科技有限公司 | A kind of headset system, headphone and wireless charging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633706A (en) * | 2013-12-11 | 2014-03-12 | 黄添添 | Wireless rechargeable electronic bracelet and wireless charging method thereof |
| CN104113124A (en) * | 2014-08-04 | 2014-10-22 | 广东欧珀移动通信有限公司 | Smart watch |
| CN105372984A (en) * | 2014-08-29 | 2016-03-02 | 三星电子株式会社 | Smart watch for enabling wireless charging |
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| CN107005093A (en) * | 2014-12-23 | 2017-08-01 | 英特尔公司 | Along the wireless power receiving coil of the ring of device |
| CN104618831A (en) * | 2015-01-27 | 2015-05-13 | 深圳市百泰实业有限公司 | Wireless intelligent headphone |
| CN204391836U (en) * | 2015-02-13 | 2015-06-10 | 夏竹兵 | intelligent bracelet |
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Application publication date: 20191231 |
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