CN207022293U - A kind of electronic equipment - Google Patents
A kind of electronic equipment Download PDFInfo
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- CN207022293U CN207022293U CN201720551630.7U CN201720551630U CN207022293U CN 207022293 U CN207022293 U CN 207022293U CN 201720551630 U CN201720551630 U CN 201720551630U CN 207022293 U CN207022293 U CN 207022293U
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- circuit board
- display screen
- button
- main circuit
- housing
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Abstract
The utility model provides a kind of electronic equipment, the housing of the electronic equipment includes bottom wall and four side walls, four side walls according to being followed successively by the first side wall, second sidewall, the 3rd side wall and the 4th side wall clockwise, the first side wall is provided with key hole, and extension forms button fixing groove into housing, it is provided with a separator on bottom wall, separator connection second sidewall and the 4th side wall, is provided with the spacing edge in same level on the inwall and button fixing groove of four side walls；Inscription plate LENS is fixed on spacing along upper by engraving plate LENS gums, and forms a confined space with housing.
Description
Technical field
It the utility model is related to a kind of electronic technology field, more particularly to a kind of electronic equipment.
Background technology
The existing equipment with display screen is protected using inscription plate LENS to display screen mostly, and inscription plate LENS can be protected
The viewing area of display screen is not scratched or destroyed.Traditional, inscription plate LENS mostly enters luggage in assembling using clamping structure
Match somebody with somebody, structure and complex process.
Utility model content
The utility model aim to solve the problem that above mentioned problem/one of.
Main purpose of the present utility model is to provide a kind of electronic equipment.
To reach above-mentioned purpose, what the technical solution of the utility model was specifically realized in：
On the one hand the utility model provides a kind of electronic equipment, including：Housing, the housing include bottom wall and four sides
Wall, four side walls according to being followed successively by the first side wall, second sidewall, the 3rd side wall and the 4th side wall clockwise, and described
One side wall is provided with key hole, and into the housing, extension forms button fixing groove, and a separator is provided with the bottom wall,
The separator connects the second sidewall and the 4th side wall, on the inwall and the button fixing groove of four side walls
The spacing edge in same level is provided with, the outer wall of the bottom wall, four side walls and the button fixing groove limits
Going out a receiving portion, described accommodation section is separated into the first sub- receiving portion and the second sub- receiving portion by the separator, wherein, described
One sub- receiving portion is disposed with main circuit board and display screen from inside to outside, and the second sub- receiving portion is set gradually from inside to outside
There are battery, keyboard pcb and keyboard gum, the button fixing groove is disposed with button circuit board, metal elastic from inside to outside
Piece, foam and mechanical key；Plate LENS is engraved, upper surface is provided with Transparence Display region and key icon region, the inscription plate
LENS upper surface is exposed from the receiving portion of the housing, is arranged on described spacing along upper and close with housing composition one
Close space；Plate LENS gums are engraved, are arranged at described spacing along upper and positioned at inscription plate LENS lower surfaces, and are provided with the first hollow out list
Member and the second hollow-out unit, wherein, first hollow-out unit matches with the button fixing groove, second hollow-out unit and
Described accommodation section matches；Wherein, the display screen, between the main circuit board and the inscription plate LENS, the display screen
One side for display is arranged at the lower surface of the inscription plate LENS, and is oppositely arranged with the Transparence Display region, described aobvious
Display screen is electrically connected by the first flexible PCB with the main circuit board；
The battery, electrically connected by the second flexible PCB with the main circuit board；The keyboard pcb, is provided with
The one side of button is attached at the inscription plate LENS lower surfaces by the keyboard gum, and relative with the key icon region sets
Put, and electrically connected by the 3rd flexible PCB with the main circuit board；The button circuit board, metal clips is provided with, institute
State that button circuit board is provided with the one side of the metal clips and the key hole is oppositely arranged, and be electrically connected with the main circuit board
Connect；The mechanical key, on the foam, and the key hole is passed through, be exposed to outside the first side wall；Described first
The the first magnetic communication interface and the second magnetic communication interface of mutually insulated, the first magnetic communication are additionally provided with sub- receiving portion
Interface and the second magnetic communication interface are exposed at outside housing, the first magnetic communication interface and the second magnetic communication interface
Electrically connected respectively with the main circuit board.
In addition, the display screen is electronic-paper display screen；The non-one side for being used to show of the electronic-paper display screen passes through
Display screen gum is attached on the main circuit board.
In addition, four hollow-out units are additionally provided with the main circuit board；Four screen posts are additionally provided with the bottom wall,
Four screen posts and four hollow-out unit position correspondences, four screen posts pass through four hollow-out units；
The display screen is OLED display screen, and the display screen is sticked in four screen posts.
In addition, the one side of the button fixing groove is provided with opening；The button circuit board by connecting line with it is described
Main circuit board electrically connects, wherein, one end of the connecting line is fixedly connected on the button circuit board, and the other end is described in
Opening, be fixedly connected with the main circuit board.
In addition, the housing is plastic material；
In addition, the electronic equipment is electric signing tools or smart card.
In addition, the main circuit board is fixed on by screw on the bottom wall of the housing.
The utility model provides a kind of electronic equipment it can be seen from above-mentioned technical scheme provided by the utility model,
The electronic equipment is directly bonded on the spacing along upper of shell using LENS gums by plate LENS is engraved, and structure and technique are simple.
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present utility model
Example, on the premise of not paying creative work, can also be according to these accompanying drawings for one of ordinary skill in the art
Obtain other accompanying drawings.
Fig. 1 is the structural representation for the housing that the utility model embodiment 1 provides；
Fig. 2 is the structural representation for the electronic equipment that the utility model embodiment 1 provides；
Fig. 3 is the structural representation for the button circuit board that the utility model embodiment 1 provides；
Fig. 4 is the structural representation for the mechanical key that the utility model embodiment 1 provides；
Fig. 5 is the backsight structural representation for the housing that the utility model embodiment 1 provides；
Fig. 6 is the structural representation for the electronic equipment that the utility model embodiment 3 provides；
Fig. 7 is the structural representation for the main circuit board that the utility model embodiment 3 provides；
Fig. 8 is the structural representation for the housing that the utility model embodiment 3 provides.
Embodiment
With reference to the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole realities
Apply example.Based on embodiment of the present utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of protection of the utility model.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " be only used for describe purpose, and it is not intended that instruction or
Imply relative importance or quantity or position.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
The utility model embodiment is described in further detail below in conjunction with accompanying drawing.
Embodiment 1
The present embodiment provides a kind of electronic equipment, and the electronic equipment includes housing 10, and Fig. 1 is the structural representation of housing,
As shown in figure 1, housing 10 includes bottom wall 101 and four side walls, four side walls according to be followed successively by clockwise the first side wall 102,
Second sidewall 103, the 3rd side wall 104 and the 4th side wall 105, the first side wall 102 is provided with key hole 106, and prolongs into housing
Stretch to form button fixing groove 107, a separator 109 is provided with bottom wall 101, separator 109 connects second sidewall 103 and the 4th
Side wall 105, spacing along 108 in same level, bottom wall is provided with the inwall and button fixing groove 107 of four side walls
101st, the outer wall of four side walls and button fixing groove 107 limits a receiving portion, and accommodating portion is divided into the first son by separator 109
Receiving portion and the second sub- receiving portion.
Preferably, housing 10 is plastic material, and certainly, housing 10 can also be ceramic material, and the present embodiment is not done specifically
Limit.
In the present embodiment, the spacing edge on the spacing edge and button fixing groove 107 on the inwall of four side walls is in same
One horizontal plane, it is spacing along 108 to facilitate inscription plate LENS80 to be arranged on.
Fig. 2 be the present embodiment in electronic equipment structural representation, as shown in Fig. 2 the first sub- receiving portion from inside to outside according to
Secondary to be provided with main circuit board 20 and display screen 30, the second sub- receiving portion is disposed with battery 40, keyboard pcb from inside to outside
50 and keyboard gum 60, button fixing groove 107 is disposed with button circuit board 1071, metal clips 1072, bubble from inside to outside
Cotton 1073 and mechanical key 1074.
In the present embodiment, main circuit board 20 and mechanical key 1074 are irregular shape, display screen 30, battery 40, key
Disk circuit board 50, keyboard gum 60, button circuit board 1071 can be square (such as rectangle or square) shape,
Metal clips 1072 can be square configuration, or it is round-shaped, certainly, however it is not limited to this；Foam 1073 can be side
Shape shape, it is arranged on button circuit board 1071, positioned at the both sides of metal clips 1072, it is of course also possible to be square hollow
Structure, the hollow space of foam can be square or circular, and metal clips is contained in the hollow space of foam, and the utility model is simultaneously
The shape to foam and position are not limited specifically, as long as the foam 1033 set on button circuit board can ensure that machinery is pressed
After key 1034 is pressed, can also be upspring, metal clips 1032 will not be pressed always, just the scope of protection of the utility model it
It is interior.
As a kind of optional embodiment of the present embodiment, main circuit board 20 is fixed on the bottom wall of housing 10 by screw
On 101, it is ensured that main circuit board 20 is fixed in housing 10.
In the present embodiment, plate LENS80 is engraved, upper surface is provided with Transparence Display region and key icon region, engraves plate
LENS upper surface is exposed from the receiving portion of housing, be arranged on it is spacing along 108, and with housing 10 form a confined space.
Preferably, inscription plate LENS80 be arranged on it is spacing along 108 after, inscription plate LENS height is identical with four side walls.Make
For optional embodiment, inscription plate LENS80 height can also be higher than four side walls 102, it is of course also possible to be less than four sides
Wall 102, the present embodiment are simultaneously not specifically limited, as long as inscription plate LENS80 forms a closed space with housing 10, in this reality
Apply within the protection domain of example.Inscription plate LENS80 in the present embodiment is used to protect display screen not to be scratched or destroy.
In the present embodiment, the button for engraving plate LENS80 key icon region can be digital keys, alphabet key, really
Recognize button and/or delete button, the user of the electronic equipment can use digital keys, alphabet key input password, using true
Recognize button and confirm Transaction Information, using the information of delete button deleting input error, the present embodiment is not specifically limited.
In the present embodiment, plate LENS gums 70 are engraved, be arranged at it is spacing along 108 and positioned at inscription plate LENS lower surface,
And the first hollow-out unit 701 and the second hollow-out unit 702 are provided with, wherein, the first hollow-out unit 701 and button fixing groove 107
Matching, the second hollow-out unit 702 match with receiving portion.Specifically, inscription plate LENS gums 70 be arranged at it is spacing along upper, for will inscription
Plate LENS is fixed on spacing along upper.In addition, in the spacing effect that inscription plate LENS gums 70 are set along 108, there is dust and water protection
Fruit.
In this example it is shown that screen 30, between main circuit board 20 and inscription plate LENS80, display screen 30 is used to show
One side be arranged at inscription plate LENS lower surface, and be oppositely arranged with Transparence Display region, display screen 30 passes through the first flexible electrical
Road plate 301 electrically connects with main circuit board 20.Shown in this example it is shown that screen 30 can be electronic-paper display screen or OLED
Screen, the present embodiment are simultaneously not specifically limited.Display screen 30 in the present embodiment can be used for showing Transaction Information, certainly, and it is unlimited
In display Transaction Information, Transaction Information is shown by display screen 30, user can be facilitated to confirm Transaction Information.
In the present embodiment, battery 40, electrically connected by the second flexible PCB 401 with main circuit board 20.Specifically, this
Embodiment is power electronic equipment by battery 40.
In the present embodiment, keyboard pcb 50, the one side for being provided with button are attached at inscription plate by keyboard gum 60
LENS80 lower surfaces, and be oppositely arranged with key icon region, and be electrically connected by the 3rd flexible PCB 90 with main circuit board 20
Connect., can be with after user presses the button in inscription plate LENS80 key icon region specifically, by setting keyboard pcb 50
The corresponding numeral of input and/or letter on an electronic device.
Fig. 3 is the structural representation of button circuit board, as shown in figure 3, button circuit board 1071, is provided with metal clips
1072, button circuit board 1071 is provided with the one side of metal clips 1072 and key hole 106 is oppositely arranged, and with main circuit board 20
Electrical connection.
As optionally a kind of embodiment of the present embodiment, the one side of button fixing groove 107 is provided with opening；Button electricity
Road plate 1071 is electrically connected by connecting line with main circuit board 20, wherein, one end of connecting line is fixedly connected on button circuit board
On 1071, the other end passes through opening, be fixedly connected with main circuit board 20, wherein, connecting line can be physical connection line.
Fig. 4 is the structural representation of mechanical key, mechanical key 1074, on foam 1073, and passes through key hole
106, it is exposed to outside the first side wall 102；
Opened specifically, button circuit board 1071, metal clips 1072, foam 1073 and mechanical key 1074 have after combining
Crucial function, electronic equipment can be triggered and realize start or shutdown.In the present embodiment, electronic equipment is electric signing tools
Or smart card, certainly, however it is not limited to this, when electronic equipment is electric signing tools or smart card, by pressing mechanical key
1074, the electrical connection of triggering metal clips 1072 and button circuit board 1071, realize the start to electronic equipment or power-off operation.
The function button that button circuit board 1071, metal clips 1072, foam 1073 and mechanical key 1074 are formed after combining is waterproof
Button, realize the function of button waterproof.
Fig. 5 is the backsight structural representation of housing, as shown in figure 5, being additionally provided with the of mutually insulated in the first sub- receiving portion
One magnetic communication interface 110 and the second magnetic communication interface 111, the first magnetic communication interface 110 and the second magnetic communication interface
111 are exposed at outside housing 10, and the first magnetic communication interface 110 and the second magnetic communication interface 111 are electric with main circuit board 20 respectively
Connection.Specifically, specifically, electronic equipment by the first magnetic communication interface 110 and the second magnetic communication interface 111 realize with
The communication connection of external equipment.
Electronic equipment in the present embodiment is directly bonded on the spacing along upper, knot of shell using LENS gums by plate LENS is engraved
Structure and technique are simple.
Embodiment 2
As different from Example 1, the display screen 30 in the present embodiment is defined to electronic-paper display screen, electronic-paper display screen
The non-one side for being used to show is attached at main circuit board 20 by display screen gum.Electronic-paper display screen in the present embodiment compares
It is thin, electronic-paper display screen is fixed on main circuit board 20 by display screen gum, it is ensured that electronic-paper display screen is in housing
Interior position is fixed；In addition, the display screen of the present embodiment, display effect access expansion paper effect are used as using electronic-paper display screen
Fruit, from reading fatigue.
Electronic equipment in the present embodiment is directly bonded on the spacing along upper, knot of shell using LENS gums by plate LENS is engraved
Structure and technique are simple.In addition, the display screen of the present embodiment, display effect access expansion paper effect are used as using electronic-paper display screen
Fruit, from reading fatigue.
Embodiment 3
The electronic equipment that the present embodiment provides for details, reference can be made to Fig. 6, and the electronic equipment in the present embodiment is different from embodiment 1
, display screen 30 is defined to OLED display screen 30a in the present embodiment；In addition, four hollow outs are additionally provided with main circuit board 20
Unit (201a, 201b, 201c and 201d), as shown in Figure 7；Be additionally provided with bottom wall 101 four screen posts (112a, 112b,
112c and 112d), as shown in figure 8, four screen posts (112a, 112b, 112c and 112d) and four hollow-out units (201a,
201b, 201c and 201d) position correspondence, four screen posts (112a, 112b, 112c and 112d) pass through four hollow-out units
(201a, 201b, 201c and 201d)；Specifically, 112a and 201a position correspondences, 112b and 201b position correspondences, 112c with
201c position correspondences, 112d and 201d position correspondences, display screen is OLED display screen 30a, and OLED display screen 30a is sticked in four
Individual screen post (112a, 112b, 112c and 112d).In the present embodiment, four screen posts are set on bottom wall 101, and OLED shows
Display screen 30a, which is sticked in screen post, can ensure that positions of the OLED display screen 30a in housing 10 is fixed.In the present embodiment
OLED display screen constructs and processing procedure is fairly simple.
Electronic equipment in the present embodiment is directly bonded on the spacing along upper, knot of shell using LENS gums by plate LENS is engraved
Structure and technique are simple.It is in addition, fairly simple as the display screen of the present embodiment, construction and processing procedure using OLED display screen.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of preferred embodiment of the present utility model includes other realization, wherein can not press shown or discuss
Order, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be by this
The embodiment person of ordinary skill in the field of utility model is understood.
It should be appreciated that each several part of the present utility model can be realized with hardware, software, firmware or combinations thereof.
In above-mentioned embodiment, what multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Software or firmware are realized.If, and in another embodiment, can be with known in this field for example, realized with hardware
Any one of following technology or their combination realize：With the gate for realizing logic function to data-signal
The discrete logic of circuit, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA),
Field programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing module,
Can be that unit is individually physically present, can also two or more units be integrated in a module.It is above-mentioned integrated
Module can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated mould
If block is realized in the form of software function module and counted as independent production marketing or in use, one can also be stored in
In calculation machine read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as not departing from the utility model to limitation of the present utility model, one of ordinary skill in the art
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.The scope of the utility model is by appended claims and its equivalent limits.
Claims (7)
1. a kind of electronic equipment, it is characterised in that including：
Housing, the housing include bottom wall and four side walls, and four side walls according to being followed successively by the first side wall, clockwise
Two side walls, the 3rd side wall and the 4th side wall, the first side wall is provided with key hole, and extension forms button into the housing
Fixing groove, a separator is provided with the bottom wall, the separator connects the second sidewall and the 4th side wall, described
The spacing edge in same level, the bottom wall, described four are provided with the inwall of four side walls and the button fixing groove
The outer wall of individual side wall and the button fixing groove limits a receiving portion, and described accommodation section is separated into the first son by the separator
Receiving portion and the second sub- receiving portion, wherein, the first sub- receiving portion is disposed with main circuit board and display screen from inside to outside,
The second sub- receiving portion is disposed with battery, keyboard pcb and keyboard gum from inside to outside, the button fixing groove by
Button circuit board, metal clips, foam and mechanical key are disposed with from inside to outside；
Plate LENS is engraved, upper surface is provided with Transparence Display region and key icon region, and the upper surface of the inscription plate LENS is from institute
State and expose in the receiving portion of housing, be arranged on described spacing along upper, and form a confined space with the housing；
Plate LENS gums are engraved, are arranged at described spacing along upper and positioned at inscription plate LENS lower surface, and are provided with the first hollow out list
Member and the second hollow-out unit, wherein, first hollow-out unit matches with the button fixing groove, second hollow-out unit and
Described accommodation section matches；
Wherein,
The display screen, between the main circuit board and the inscription plate LENS, the one side that the display screen is used to show is set
The lower surface of the inscription plate LENS is placed in, and is oppositely arranged with the Transparence Display region, the display screen is flexible by first
Circuit board electrically connects with the main circuit board；
The battery, electrically connected by the second flexible PCB with the main circuit board；
The keyboard pcb, the one side for being provided with button are attached at the inscription plate LENS lower surfaces by the keyboard gum,
And be oppositely arranged with the key icon region, and electrically connected by the 3rd flexible PCB with the main circuit board；
The button circuit board, is provided with metal clips, and the button circuit board is provided with one side and the institute of the metal clips
State key hole to be oppositely arranged, and electrically connected with the main circuit board；
The mechanical key, on the foam, and the key hole is passed through, be exposed to outside the first side wall；
The the first magnetic communication interface and the second magnetic communication interface of mutually insulated are additionally provided with the first sub- receiving portion, it is described
First magnetic communication interface and the second magnetic communication interface are exposed at outside housing, the first magnetic communication interface and second
Magnetic communication interface electrically connects with the main circuit board respectively.
2. electronic equipment according to claim 1, it is characterised in that
The display screen is electronic-paper display screen；
The non-one side for being used to show of the electronic-paper display screen is attached at the main circuit board by display screen gum.
3. electronic equipment according to claim 1, it is characterised in that
Four hollow-out units are additionally provided with the main circuit board；
Four screen posts, four screen posts and four hollow-out unit position correspondences, institute are additionally provided with the bottom wall
State four screen posts and pass through four hollow-out units；
The display screen is OLED display screen, and the display screen is sticked in four screen posts.
4. according to the electronic equipment described in any one of claims 1 to 3, it is characterised in that
The one side of the button fixing groove is provided with opening；
The button circuit board is electrically connected by connecting line with the main circuit board, wherein, one end of the connecting line, which is fixed, to be connected
Be connected on the button circuit board, the other end passes through the opening, be fixedly connected with the main circuit board.
5. according to the electronic equipment described in any one of claims 1 to 3, it is characterised in that
The housing is plastic material.
6. according to the electronic equipment described in any one of claims 1 to 3, it is characterised in that
The electronic equipment is electric signing tools or smart card.
7. according to the electronic equipment described in any one of claims 1 to 3, it is characterised in that
The main circuit board is fixed on by screw on the bottom wall of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551630.7U CN207022293U (en) | 2017-05-18 | 2017-05-18 | A kind of electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551630.7U CN207022293U (en) | 2017-05-18 | 2017-05-18 | A kind of electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207022293U true CN207022293U (en) | 2018-02-16 |
Family
ID=61476812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720551630.7U Active CN207022293U (en) | 2017-05-18 | 2017-05-18 | A kind of electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207022293U (en) |
-
2017
- 2017-05-18 CN CN201720551630.7U patent/CN207022293U/en active Active
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