CN209472106U - Electronic equipment - Google Patents
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- CN209472106U CN209472106U CN201920633440.9U CN201920633440U CN209472106U CN 209472106 U CN209472106 U CN 209472106U CN 201920633440 U CN201920633440 U CN 201920633440U CN 209472106 U CN209472106 U CN 209472106U
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Abstract
The utility model discloses a kind of electronic equipment, comprising: the first face, the second face and third face, the first face, the second face and third face is adjacent and the first face, the second face and third face are vertical two-by-two；First millimeter wave antenna array, the first millimeter wave antenna array are set on the first face；Second millimeter wave antenna array, the second millimeter wave antenna array are set on the second surface；Third millimeter wave antenna array, third millimeter wave antenna array are located on third face.Electronic equipment according to the present utility model, by the way that the first millimeter wave antenna array, the second millimeter wave antenna array and third millimeter wave antenna array are respectively set on the first face, the second face and third face of electronic equipment, three-dimensional millimeter wave antenna array can be formed, the range of receiving for increasing millimeter wave antenna, improves the performance of millimeter wave antenna.
Description
Technical field
The utility model relates to technical field of electronic equipment, more particularly, to a kind of electronic equipment.
Background technique
In the related technology, millimere-wave band frequency is high, and space attenuation is big, while current antenna scheme uses antenna formation
Formula belongs to directional aerial, and region gain is small other than antenna main beam, therefore the millimeter-wave signal that terminal receives is with direct projection
It is main.If the millimeter wave antenna of terminal is only arranged in single side, it is easy to appear and receives blind area.
Utility model content
The utility model proposes a kind of electronic equipment, the millimeter wave antenna performance of the electronic equipment is high.
According to the electronic equipment of the utility model embodiment, comprising: the first face, the second face and third face, first face,
The second face and third face is adjacent and first face, second face and the third face are vertical two-by-two；First milli
Metric wave aerial array, the first millimeter wave antenna array are located on first face；Second millimeter wave antenna array, described
Two millimeter wave antenna arrays are located on second face；Third millimeter wave antenna array, the third millimeter wave antenna array are set
On the third face.
According to the electronic equipment of the utility model embodiment, by the first face, the second face and third face of electronic equipment
On the first millimeter wave antenna array, the second millimeter wave antenna array and third millimeter wave antenna array is respectively set, can be formed
Three-dimensional millimeter wave antenna array, increases the range of receiving of millimeter wave antenna, improves the performance of millimeter wave antenna.
Some embodiments according to the present utility model, the first millimeter wave antenna array, second millimeter wave antenna
Array and the third millimeter wave antenna array are each provided at the position on remaining close two sides of respective face.
Some embodiments according to the present utility model, the first millimeter wave antenna array, second millimeter wave antenna
At least one of array and the third millimeter wave antenna array are straight line millimeter wave antenna array or plane millimeter wave antenna
Array.
In some embodiments of the utility model, the length in first face is identical as the length in second face, institute
The width for stating the first face is identical as the length in the third face, and the width in second face is of same size with the third face,
And the width in second face is less than the width in first face, the first millimeter wave antenna array is plane millimeter wave antenna
Array, the second millimeter wave antenna array and the third millimeter wave antenna array are straight line millimeter wave antenna array.
Some embodiments according to the present utility model, further include display screen, and the display screen is located at and first face phase
Pair surface on.
Some embodiments according to the present utility model, further includes: fourth face, the 5th face and the 6th face, the fourth face, institute
It states the 5th face and the 6th face is adjacent and the fourth face, the 5th face and the 6th face are vertical two-by-two, the described 4th
Face and first face are opposite and parallel, the 5th face and second face with respect to and parallel, the 6th face and described the
Three faces are opposite and parallel；4th millimeter wave antenna array, the 4th millimeter wave antenna array are located on the fourth face；5th
Millimeter wave antenna array, the 5th millimeter wave antenna array are located on the 5th face；6th millimeter wave antenna array, it is described
6th millimeter wave antenna array is located on the 6th face.
In some embodiments of the utility model, the 4th millimeter wave antenna array, the 5th millimeter wave antenna
Array and the 6th millimeter wave antenna array are each provided at the position on remaining close two sides of respective face.
In some embodiments of the utility model, the 4th millimeter wave antenna array, the 5th millimeter wave antenna
At least one of array and the 6th millimeter wave antenna array are straight line millimeter wave antenna array or plane millimeter wave antenna
Array.
In some embodiments of the utility model, the 4th millimeter wave antenna array is plane millimeter wave antenna battle array
Column, the 5th millimeter wave antenna array and the 6th millimeter wave antenna array are straight line millimeter wave antenna array.
In some embodiments of the utility model, the first millimeter wave antenna array, second millimeter wave antenna
Array, the third millimeter wave antenna array, the 4th millimeter wave antenna array, the 5th millimeter wave antenna array and institute
Stating the 6th millimeter wave antenna array includes multiple radiating elements, and the radiating element is that single polarization paster antenna or dual polarization are pasted
Chip antenna.
In some embodiments of the utility model, the first millimeter wave antenna array, second millimeter wave antenna
Array, the third millimeter wave antenna array, the 4th millimeter wave antenna array, the 5th millimeter wave antenna array and institute
Stating the 6th millimeter wave antenna array includes multiple radiating elements, and the radiating element is square patch antenna or circular patch day
Line.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the perspective view according to the electronic equipment of the utility model embodiment；
Fig. 2 is the first millimeter wave antenna array structure schematic diagram according to the electronic equipment of the utility model embodiment；
Fig. 3 is the structural schematic diagram according to the first millimeter wave antenna array of the electronic equipment of the utility model embodiment；
Fig. 4 is the structural schematic diagram according to the second millimeter wave antenna array of the electronic equipment of the utility model embodiment；
Fig. 5 is the structural schematic diagram according to the third millimeter wave antenna array of the electronic equipment of the utility model embodiment；
Fig. 6 is the perspective view according to the electronic equipment of the utility model embodiment；
Fig. 7 is the 4th millimeter wave antenna array structure schematic diagram according to the electronic equipment of the utility model embodiment；
Fig. 8 is the structural schematic diagram according to the 4th millimeter wave antenna array of the electronic equipment of the utility model embodiment；
Fig. 9 is the structural schematic diagram according to the 5th millimeter wave antenna array of the electronic equipment of the utility model embodiment；
Figure 10 is the structural schematic diagram according to the 6th millimeter wave antenna array of the electronic equipment of the utility model embodiment；
Figure 11 is the structural schematic diagram according to the electronic equipment of the utility model embodiment.
Appended drawing reference:
Electronic equipment 100,
First face 10, the second face 20, third face 30, fourth face 40, the 5th face 50, the 6th face 60,
First millimeter wave antenna array 1,
Second millimeter wave antenna array 2,
Third millimeter wave antenna array 3,
4th millimeter wave antenna array 4,
5th millimeter wave antenna array 5,
6th millimeter wave antenna array 6,
Radiating element 7,
Display screen 8.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
Below with reference to the accompanying drawings electronic equipment 100 according to the utility model embodiment is described.
As shown in Figure 1, according to the electronic equipment 100 of the utility model embodiment, including the first face 10, the second face 20,
Three faces 30, the first millimeter wave antenna array 1, the second millimeter wave antenna array 2 and third millimeter wave antenna array 3.
Specifically, the first face 10 of electronic equipment 100, the second face 20 and third face 30 is adjacent and the first face 10, second
Face 20 and third face 30 are vertical two-by-two.It is understood that the first face 10, the second face 20 and third face 30 connect common limit two-by-two
Three crest lines are made, three crest line intersections can limit a vertex.First millimeter wave antenna array 1 is located at the first face 10
On, the second millimeter wave antenna array 2 is located on the second face 20, and third millimeter wave antenna array 3 is located on third face 30, thus may be used
To form three-dimensional millimeter wave antenna array, increases the range of receiving of millimeter wave antenna, improve the performance of millimeter wave antenna.
Wherein, the work of the first millimeter wave antenna array 1, the second millimeter wave antenna array 2 and third millimeter wave antenna array 3
Make frequency range in millimere-wave band, the millimere-wave band includes at least the millimeter wave frequency band of the 5th Generation Mobile Communication System, and frequency is
24250MHz–52600MHz。
According to the electronic equipment 100 of the utility model embodiment, by the first face 10, the second face of electronic equipment 100
20 and third face 30 on the first millimeter wave antenna array 1, the second millimeter wave antenna array 2 and third millimeter wave antenna is respectively set
Array 3 can form three-dimensional millimeter wave antenna array, increase the range of receiving of millimeter wave antenna, improve the property of millimeter wave antenna
Energy.
Further, as shown in Figure 1, the first millimeter wave antenna array 1, the second millimeter wave antenna array 2 and third millimeter
Wave antenna array 3 is each provided at the position on remaining close two sides of respective face.It is understood that the first millimeter wave antenna array
1, the second millimeter wave antenna array 2 and third millimeter wave antenna array 3 are located at an angle of electronic equipment 100.Thus it is convenient for
The stacking and layout of the circuit of electronic equipment 100, are advantageously implemented the miniaturization of electronic equipment 100.
Optionally, in the first millimeter wave antenna array 1, the second millimeter wave antenna array 2 and third millimeter wave antenna array 3
At least one be straight line millimeter wave antenna array or plane millimeter wave antenna array.That is, the first millimeter wave antenna battle array
At least one of column 1, the second millimeter wave antenna array 2 and third millimeter wave antenna array 3 are straight line millimeter wave antenna array,
Or at least one of the first millimeter wave antenna array 1, the second millimeter wave antenna array 2 and third millimeter wave antenna array 3
For plane millimeter wave antenna array.It is possible thereby to increase the diversity of the structure of 100 millimeter wave antenna array of electronic equipment, meet
Different demands.
Further, as shown in Figure 1, the length in the first face 10 is identical as the length in the second face 20, the width in the first face 10
Identical as the length in third face 30, the width in the second face 20 is of same size with third face 30, and the width in the second face 20 is less than
The width in the first face 10.It is understood that electronic equipment 100 be it is flat, the area in the first face 10 is with respect to 20 He of the second face
Third face 30 is larger, and the second face 20 and third face 30 can be strip.As Figure 2-Figure 5, the first millimeter wave antenna array 1
For plane millimeter wave antenna array, the second millimeter wave antenna array 2 and third millimeter wave antenna array 3 are straight line millimeter wave antenna
Array.It is possible thereby to increase the first millimeter wave antenna array 1, the second millimeter wave antenna array 2 and third millimeter to greatest extent
The area of wave antenna array 3 improves the performance of millimeter wave antenna, while can be better to increase the number of radiating element 7
Match the appearance of electronic equipment 100.
In the description of the present invention, it should be understood that the orientation or position of the instructions such as term " length ", " width "
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be construed as a limitation of the present invention.
For example, in the illustrated example shown in fig. 2, the first millimeter wave antenna array 1 includes multiple radiating elements 7, multiple radiation
Unit 7 is embarked on journey arranges in column, such as two rows six column.In the example depicted in fig. 3, multiple spokes of the first millimeter wave antenna array 1
It penetrates unit 7 and embarks on journey and arrange in column, such as four rows six column.Wherein, the spacing of adjacent radiation unit is less than the one of minimum working frequency points
A free space wavelength.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Optionally, electronic equipment 100 further includes display screen 8, and display screen 8 is located on the surface opposite with the first face 10.It can
With understanding, the first face 10 is the back side of electronic equipment 100, and the second face 20 and third face 30 can be electronic equipment 100
Side.It is possible thereby to which the first millimeter wave antenna array 1 is avoided to occupy the space of display screen 8, be conducive to improve screen accounting, to have
Conducive to the comprehensive screen for realizing electronic equipment 100.Certainly, the utility model is without being limited thereto, and display screen 8 can also be penetrated in the first face 10
On.
Certainly, as shown in fig. 6, electronic equipment 100 further includes fourth face 40, the 5th face 50, the 6th face 60, the 4th millimeter wave
Aerial array 4, the 5th millimeter wave antenna array 5 and the 6th millimeter wave antenna array 6.Fourth face 40, the 5th face 50 and the 6th face
60 is adjacent and fourth face 40, the 5th face 50 and the 6th face 60 are vertical two-by-two, fourth face 40 and the first face 10 with respect to and it is parallel, the 5th
Face 50 and the second face 20 are opposite and parallel, and the 6th face 60 is opposite and parallel with third face 30, and the 4th millimeter wave antenna array 4 is located at
On fourth face 40, the 5th millimeter wave antenna array 5 is located on the 5th face 50, and the 6th millimeter wave antenna array 6 is located at the 6th face 60
On.First millimeter wave antenna array 1 and the 4th millimeter wave antenna array 4 emit in the opposite direction and receive signal, and second
Millimeter wave antenna array 2 and the 5th millimeter wave antenna array 5 emit in the opposite direction and receive signal, third millimeter wave day
Linear array 3 and the 6th millimeter wave antenna array 6 emit in the opposite direction and receive signal.It is possible thereby to form sextuple millimeter
Wave antenna array, increases the range of receiving of millimeter wave antenna, almost can satisfy the coverage effect of electronic equipment all directions, mentions
The performance of high millimeter wave antenna.
Further, as shown in fig. 6, the 4th millimeter wave antenna array 4, the 5th millimeter wave antenna array 5 and the 6th millimeter
Wave antenna array 6 is each provided at the position on remaining close two sides of respective face.It is understood that the 4th millimeter wave antenna array
4, the 5th millimeter wave antenna array 5 and the 6th millimeter wave antenna array 6 are located at another opposite angle of electronic equipment 100.
Thus convenient for the stacking and layout of the circuit of electronic equipment 100, it is advantageously implemented the miniaturization of electronic equipment 100.
Optionally, in the 4th millimeter wave antenna array 4, the 5th millimeter wave antenna array 5 and the 6th millimeter wave antenna array 6
At least one be straight line millimeter wave antenna array or plane millimeter wave antenna array.That is, the 4th millimeter wave antenna battle array
At least one of column 4, the 5th millimeter wave antenna array 5 and the 6th millimeter wave antenna array 6 are straight line millimeter wave antenna array,
Or at least one of the 4th millimeter wave antenna array 4, the 5th millimeter wave antenna array 5 and the 6th millimeter wave antenna array 6
For plane millimeter wave antenna array.It is possible thereby to increase the diversity of the structure of 100 millimeter wave antenna array of electronic equipment, meet
Different demands.
Further, as shown in fig. 6, the length of fourth face 40 is identical as the length in the 5th face 50, the width of fourth face 40
Identical as the length in the 6th face 60, the width in the 5th face 50 is of same size with the 6th face 60, and the width in the 5th face 50 is less than
The width of fourth face 40.It is understood that electronic equipment 100 be it is flat, the area of fourth face 40 is with respect to 50 He of the 5th face
6th face 60 is larger, and the 5th face 50 and the 6th face 60 can be strip.As shown in Fig. 7-Figure 10, the 4th millimeter wave antenna array
4 be plane millimeter wave antenna array, and the 5th millimeter wave antenna array 5 and the 6th millimeter wave antenna array 6 are straight line millimeter wave day
Linear array.It is possible thereby to increase the 4th millimeter wave antenna array 4, the 5th millimeter wave antenna array 5 and the 6th milli to greatest extent
The area of Metric wave aerial array 6 improves the performance of millimeter wave antenna, while can be more preferable to increase the number of radiating element 7
Matching electronic equipment 100 appearance.
For example, in the example depicted in fig. 7, the 4th millimeter wave antenna array 4 includes multiple radiating elements 7, multiple radiation
Unit 7 is embarked on journey arranges in column, such as two rows six column.In the example depicted in fig. 8, multiple spokes of the 4th millimeter wave antenna array 4
It penetrates unit 7 and embarks on journey and arrange in column, such as four rows six column.
Optionally, the first millimeter wave antenna array 1, the second millimeter wave antenna array 2, third millimeter wave antenna array 3,
Four millimeter wave antenna arrays 4, the 5th millimeter wave antenna array 5 and the 6th millimeter wave antenna array 6 include multiple radiating elements
7, radiating element 7 is single polarization paster antenna or dual-polarized patch antenna.It is possible thereby to increase the various structures of millimeter wave antenna
Property, meet the needs of different.
Optionally, the first millimeter wave antenna array 1, the second millimeter wave antenna array 2, third millimeter wave antenna array 3,
Four millimeter wave antenna arrays 4, the 5th millimeter wave antenna array 5 and the 6th millimeter wave antenna array 6 include multiple radiating elements
7, radiating element 7 is that (circular patch antenna is generally used to realize circular polarisation, seldom uses for square patch antenna or circular patch antenna
To realize linear polarization performance).It is possible thereby to increase the structure diversity of millimeter wave antenna, meets the needs of different.
Illustratively, electronic equipment 100 can be various types of calculating that are mobile or portable and executing wireless communication
Any one of machine system equipment (only illustratively shows a kind of form) in Figure 11.Specifically, electronic equipment 100 can be with
For mobile phone or smart phone (for example, being based on iPhone TM, the phone based on Android TM), portable gaming device
(such as Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone TM), knee
Laptop, PDA, portable Internet appliance, music player and data storage device, other handheld devices and such as
Wrist-watch, In-Ear Headphones, pendant, headphone etc., electronic equipment 100 can also be other wearable devices (for example, all
As electronic glasses, electronics clothes, electronics bracelet, electronics necklace, electronics are tatooed, the wear-type of electronic equipment 100 or smartwatch
Equipment (HMD)).
Electronic equipment 100 can also be any one of multiple electronic equipments 100, multiple electronic equipments 100 include but
It is not limited to cellular phone, smart phone, other wireless telecom equipments, personal digital assistant, audio player, other media plays
Device, video recorder, camera, other medium recorders, radio, Medical Devices, vehicle transport instrument, calculates music recorder
Device, programmable remote control, pager, laptop computer, desktop computer, printer, netbook computer, personal digital assistant
(PDA), portable media player (PMP), Motion Picture Experts Group's (MPEG-1 or MPEG-2) audio layer (MP3) play
Device, portable medical device and digital camera and combinations thereof.
In some cases, electronic equipment 100 can execute multiple functions and (for example, playing music, show video, storage
Picture and send and receive call).If desired, electronic equipment 100 can be such as cellular phone, media play
The portable device of device, other handheld devices, watch equipment, pendant equipment, receiver device or other compact portable equipment.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (11)
1. a kind of electronic equipment characterized by comprising
First face, the second face and third face, first face, second face and the third face is adjacent and first face,
Second face and the third face are vertical two-by-two；
First millimeter wave antenna array, the first millimeter wave antenna array are located on first face；
Second millimeter wave antenna array, the second millimeter wave antenna array are located on second face；
Third millimeter wave antenna array, the third millimeter wave antenna array are located on the third face.
2. electronic equipment according to claim 1, which is characterized in that the first millimeter wave antenna array, described second
Millimeter wave antenna array and the third millimeter wave antenna array are each provided at the position on remaining close two sides of respective face.
3. electronic equipment according to claim 1, which is characterized in that the first millimeter wave antenna array, described second
At least one of millimeter wave antenna array and the third millimeter wave antenna array are straight line millimeter wave antenna array or plane
Millimeter wave antenna array.
4. electronic equipment according to claim 3, which is characterized in that the length of the length in first face and second face
Spend identical, the width in first face is identical as the length in the third face, the width in second face and the third face
It is of same size, and the width in second face is less than the width in first face, the first millimeter wave antenna array is plane
Millimeter wave antenna array, the second millimeter wave antenna array and the third millimeter wave antenna array are straight line millimeter wave antenna
Array.
5. electronic equipment according to claim 1, which is characterized in that further include display screen, the display screen is located at and institute
It states on the opposite surface in the first face.
6. electronic equipment according to claim 1, which is characterized in that further include:
Fourth face, the 5th face and the 6th face, the fourth face, the 5th face and the 6th face is adjacent and the fourth face,
5th face and the 6th face are vertical two-by-two, and the fourth face and first face are opposite and parallel, the 5th face and
Second face is opposite and parallel, and the 6th face is opposite and parallel with the third face；
4th millimeter wave antenna array, the 4th millimeter wave antenna array are located on the fourth face；
5th millimeter wave antenna array, the 5th millimeter wave antenna array are located on the 5th face；
6th millimeter wave antenna array, the 6th millimeter wave antenna array are located on the 6th face.
7. electronic equipment according to claim 6, which is characterized in that the 4th millimeter wave antenna array, the described 5th
Millimeter wave antenna array and the 6th millimeter wave antenna array are each provided at the position on remaining close two sides of respective face.
8. electronic equipment according to claim 6, which is characterized in that the 4th millimeter wave antenna array, the described 5th
At least one of millimeter wave antenna array and the 6th millimeter wave antenna array are straight line millimeter wave antenna array or plane
Millimeter wave antenna array.
9. electronic equipment according to claim 8, which is characterized in that the 4th millimeter wave antenna array is plane millimeter
Wave antenna array, the 5th millimeter wave antenna array and the 6th millimeter wave antenna array are straight line millimeter wave antenna battle array
Column.
10. electronic equipment according to claim 6, which is characterized in that the first millimeter wave antenna array, described second
Millimeter wave antenna array, the third millimeter wave antenna array, the 4th millimeter wave antenna array, the 5th millimeter wave day
Linear array and the 6th millimeter wave antenna array include multiple radiating elements, and the radiating element is single polarization paster antenna
Or dual-polarized patch antenna.
11. electronic equipment according to claim 6, which is characterized in that the first millimeter wave antenna array, described second
Millimeter wave antenna array, the third millimeter wave antenna array, the 4th millimeter wave antenna array, the 5th millimeter wave day
Linear array and the 6th millimeter wave antenna array include multiple radiating elements, the radiating element be square patch antenna or
Circular patch antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920633440.9U CN209472106U (en) | 2019-04-30 | 2019-04-30 | Electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920633440.9U CN209472106U (en) | 2019-04-30 | 2019-04-30 | Electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209472106U true CN209472106U (en) | 2019-10-08 |
Family
ID=68095194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920633440.9U Active CN209472106U (en) | 2019-04-30 | 2019-04-30 | Electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209472106U (en) |
-
2019
- 2019-04-30 CN CN201920633440.9U patent/CN209472106U/en active Active
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