CN207783436U - Pcb board component and electronic equipment with it - Google Patents
Pcb board component and electronic equipment with it Download PDFInfo
- Publication number
- CN207783436U CN207783436U CN201820254536.XU CN201820254536U CN207783436U CN 207783436 U CN207783436 U CN 207783436U CN 201820254536 U CN201820254536 U CN 201820254536U CN 207783436 U CN207783436 U CN 207783436U
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- Prior art keywords
- pcb board
- board component
- plate body
- shielding case
- evacuation notch
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Abstract
The utility model discloses a kind of pcb board component and with its electronic equipment, pcb board component includes：Plate body, the plate body are equipped with conducting wire；Shielding case, the open end of the shielding case is connected with the plate body and the open end of the shielding case has the evacuation notch for avoiding the conducting wire；Sealing element, the sealing element are located at the evacuation indentation, there to seal the evacuation notch.The pcb board component of the utility model, it is ensured that the leakproofness in the space of shielding case and plate body restriction and waterproof and dampproof property, reliability is high, and service life is long, can promote user experience and the satisfaction of user.
Description
Technical field
The utility model is related to the technical field of electronic equipment more particularly to a kind of pcb board component and with its electronics
Equipment.
Background technology
In the pcb board component of the relevant technologies, space of the sealed shielding case of generally use to limit shielding case and plate body
Interior component carries out waterproof, but because of the cabling needs of plate body, when the surface layer cabling of plate body is pierced by the bottom of shielding case,
To ensure that pcb board component does not fail, shielding case cannot be accomplished to seal completely, to affect the sky that shielding case is limited with plate body
Interior leakproofness and waterproof and dampproof property, and then influence the reliability of pcb board component.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model carries
Go out a kind of pcb board component, it is ensured that the leakproofness in the space of shielding case and plate body restriction and waterproof and dampproof property, reliability
Height, service life is long, can promote user experience and the satisfaction of user.
The utility model also proposes a kind of electronic equipment, including above-mentioned pcb board component.
According to the pcb board component of the utility model embodiment, including：Plate body, the plate body are equipped with conducting wire；Shielding case,
The open end of the shielding case is connected with the plate body and the open end of the shielding case has for avoiding keeping away for the conducting wire
Allow notch；Sealing element, the sealing element are located at the evacuation indentation, there to seal the evacuation notch.
According to the pcb board component of the utility model embodiment, by the way that sealing element is arranged in evacuation indentation, there, so as to protect
The leakproofness in the space that shielding case is limited with plate body is demonstrate,proved, being located in the space that shielding case is limited with plate body on plate body is prevented
Component and liquid water, moisture etc. are contacted and are failed, it is possible thereby to improve the reliability of pcb board component, are conducive to extend pcb board
The service life of component promotes the satisfaction of user experience and user.
Include the pcb board group according to the utility model above-described embodiment according to the electronic equipment of the utility model embodiment
Part.
According to the electronic equipment of the utility model embodiment, by the way that the PCB according to the utility model above-described embodiment is arranged
Board group part thereby may be ensured that the leakproofness in space that shielding case and plate body limit, prevent on plate body be located at shielding case with
Component and liquid water, the moisture etc. in space that plate body limits are contacted and are failed, it is possible thereby to improve the reliable of electronic equipment
Property, be conducive to the service life of electronic equipment, promote the satisfaction of user experience and user.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 is the schematic diagram according to the pcb board component of the utility model one embodiment；
Fig. 2 is the enlarged drawing of part A in Fig. 1；
Fig. 3 is the schematic diagram according to the pcb board component of the utility model another embodiment；
Fig. 4 is the schematic diagram according to the shielding case of the utility model embodiment；
Fig. 5 is the stereogram according to the electronic equipment of the utility model embodiment；
Fig. 6 is the front view according to the electronic equipment of the utility model embodiment.
Reference numeral：
Pcb board component 100；
Plate body 1；Conducting wire 11；Shielding case 2；Avoid notch 21；Sealing element 3；
Electronic equipment 300；
Shell 310；Button 320；Shooting unit 330.
Specific implementation mode
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.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more spy
Sign.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
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, can also be electrical connection；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, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Below with reference to Fig. 1-Fig. 4 descriptions according to the pcb board component 100 of the utility model embodiment.
As Figure 1-Figure 4, according to the pcb board component 100 of the utility model embodiment, including：Plate body 1,2 and of shielding case
Sealing element 3.
Specifically, plate body 1 is equipped with conducting wire 11.The open end of shielding case 2 be connected with plate body 1 and shielding case 2 open wide
Hold the evacuation notch 21 having for avoiding conducting wire 11.It follows that the component on plate body 1 is (not shown) positioned at shielding case
In 2 spaces limited with plate body 1.It thereby may be ensured that the reliability of pcb board component 100.
Simultaneously it is found that the setting of evacuation notch 21 can be effectively prevented the associated electronic device using pcb board component 100
300 make shielding case 2 contacts with each other with the top of corresponding conducting wire 11 to rub and make due to vibration etc. in use
Pcb board component 100 fails, so as to further ensure the reliability of pcb board component 100.
Sealing element 3 is located at evacuation notch 21 to seal evacuation notch 21.It thereby may be ensured that shielding case 2 is limited with plate body 1
Leakproofness in fixed space prevents the component being located in the space that shielding case 2 is limited with plate body 1 and liquid on plate body 1
Water, moisture etc. are contacted and are failed, that is to say, that and the setting of sealing element 3 can make pcb board component 100 have waterproof and dampproof ability,
It is possible thereby to improve the reliability of pcb board component 100, it is conducive to extend the service life of pcb board component 100, promoting user makes
With the satisfaction of experience and user.
It is understood that sealing element 3 has certain elasticity, so as to prevent due to the conducting wire at evacuation notch 21
11 contact friction with sealing element 3 and pcb board component 100 are made to fail.
According to the pcb board component 100 of the utility model embodiment, by the way that sealing element 3 is arranged at evacuation notch 21, to
It can ensure shielding case 2 and the leakproofness in the space of the restriction of plate body 1, prevent the shielding case 2 that is located on plate body 1 from being limited with plate body 1
Component in fixed space and liquid water, moisture etc. are contacted and are failed, it is possible thereby to the reliability of pcb board component 100 is improved,
It is conducive to extend the service life of pcb board component 100, promotes the satisfaction of user experience and user.
Some embodiments according to the present utility model, sealing element 3 are sealing foam.It thereby may be ensured that the bullet of sealing element 3
Property, ensure shielding case 2 and the leakproofness in the space of the restriction of plate body 1, while keeping the light weight and cost of sealing element 3 low.It needs herein
It is noted that the material of sealing element 3 is without being limited thereto, sealing element 3 may be formed as other materials part, as long as ensureing sealing element
The reliability of 3 sealing evacuation notches 21.
Further, sealing foam is annular and is sleeved on conducting wire 11 outside, periphery wall and the evacuation notch 21 of sealing foam
Inner wall and plate body 1 coordinate with the corresponding position of evacuation notch 21.That is, the inner wall of evacuation notch 21, conducting wire 11
Accommodation space, sealing bubble are limited jointly positioned at the part corresponding with evacuation notch 21 of the part of evacuation notch 21 and plate body 1
Cotton is located in accommodation space and avoids notch 21 with sealing.To ensure the same of the reliability of the sealing evacuation notch 21 of sealing element 3
When, the mode that sealing element 3 is assemblied at evacuation notch 21 can be made simple, reliable.Simultaneously can prevent to a certain extent by
The normal use effect of the component of other positions on pcb board component 100 is influenced in the setting of sealing foam.
Further, sealing foam is annular and is sleeved on conducting wire 11 outside, periphery wall and the evacuation notch 21 of sealing foam
Inner wall and plate body 1 be interference fitted with the corresponding position of evacuation notch 21.To make sealing element 3 match with shielding case 2 and plate body 1
It closes even closer, further improves the reliability of pcb board component 100.
Herein it should be noted that the outer end face of evacuation notch 21 refers to the close evacuation notch 21 of shielding case 2 and encloses
Around the part of evacuation notch 21.
Optionally, sealing foam is bonded in the outer end face for avoiding notch 21 and the plate with evacuation 21 face of notch by glue
On body 1.It thereby may be ensured that the reliability of the sealing evacuation notch 21 of sealing element 3.Sealing element 3 is set to be assemblied in evacuation notch 21 simultaneously
The mode at place simply, conveniently, is conducive to the production efficiency for improving pcb board component 100.
Optionally, evacuation notch 21 is formed as semicircular in shape.It is hereby understood that the structure of shielding case 2 is simple, notch is avoided
21 is easily manufactured, is conducive to the production efficiency for improving pcb board component 100, while can ensure the reliability of pcb board component 100.
Optionally, evacuation notch 21 is formed as square configuration.It is hereby understood that the structure of shielding case 2 is simple, notch 21 is avoided
It is easily manufactured, be conducive to the production efficiency for improving pcb board component 100, while can ensure the reliability of pcb board component 100.
Further, the shortest distance between the bottom wall and plate body 1 of evacuation notch 21 is H, and H meets：0.25mm≤H≤
0.3mm.That is, the shortest distance between evacuation notch 21 and the wall and plate body 1 of 1 face of plate body is H, when H meets：
When 0.25mm≤H≤0.3mm, can be effectively prevented using pcb board component 100 associated electronic device 300 in use
There is Problem of Failure, to ensure the reliability of pcb board component 100.Be conducive to improve what shielding case 2 was limited with plate body 1 simultaneously
Leakproofness in space and waterproof and dampproof property, and then it is conducive to extend the service life of pcb board component 100, it promotes user and uses
The satisfaction of experience and user.
Herein it should be noted that the shape of evacuation notch 21 is without being limited thereto, trapezoidal, triangle etc. is may also be formed as, only
Ensure that evacuation notch 21 can effectively avoid the conducting wire 11 on plate body 1, and ensures the reliability of pcb board component 100 i.e.
It can.
Some embodiments according to the present utility model, open end and the plate body 1 of shielding case 2 are weldingly connected.So as to protect
The reliability that card shielding case 2 is connect with plate body 1, keeps shielding case 2 and the connection type of plate body 1 simple.
Optionally, shielding case 2 is integrated stamping parts.The part that is, shielding case 2 is integrally formed, to be conducive to letter
Change the production process of pcb board component 100, improves the production efficiency of pcb board component 100.
Optionally, evacuation notch 21 is multiple.So as to so that shielding case 2 can avoid multiple conducting wires 11 on plate body 1,
Improve the practicability of shielding case 2.
Optionally, shielding case 2 is that the open end of multiple and each shielding case 2 is connected with plate body 1 respectively.It follows that plate
Multiple components on body 1 can be located in the space that different shielding cases 2 are limited with plate body, more so as to prevent to a certain extent
The production that contacts with each other due to generation vibration etc. in 300 operational process of associated electronic device of application pcb board component 100 of a component
Raw interference is conducive to the reliability for improving pcb board component 100.
According to other compositions of the pcb board component 100 of the utility model embodiment and operate for the common skill in this field
All it is known for art personnel, is not detailed herein.
As shown in figs 1 to 6, according to the electronic equipment of the utility model embodiment 300, including according on the utility model
State the pcb board component 100 of embodiment.
According to the electronic equipment 300 of the utility model embodiment, by being arranged according to the utility model above-described embodiment
Pcb board component 100 thereby may be ensured that shielding case 2 and the leakproofness in the space of the restriction of plate body 1, prevent being located on plate body 1
The component that shielding case 2 is limited with plate body 1 in space and liquid water, moisture etc. are contacted and are failed, it is possible thereby to improve electronics
The reliability of equipment 300 is conducive to extend the service life of electronic equipment 300, promotes the satisfaction of user experience and user
Degree.
Specifically, electronic equipment 300 includes shell 310, button 320 and shooting unit 330.
It should be noted that electronic equipment 300 can various can obtain data from outside and from being carried out to the data
The equipment of reason, alternatively, electronic equipment 300 can be it is various be built-in with battery, and can be obtained from outside electric current to the battery into
The equipment of row charging, for example, mobile phone, tablet computer, computing device or device for display of message etc..
The electronic equipment 300 that the utility model is applicable in is introduced by taking mobile phone as an example.In the utility model embodiment
In, mobile phone may include radio circuit, memory, input unit, Wireless Fidelity (WiFi, wireless fidelity) module,
The components such as display unit, sensor, voicefrequency circuit, processor, projecting cell, shooting unit 330, battery.
Radio circuit can be used for receive and send messages or communication process in, signal sends and receivees, particularly, by base station
After downlink information receives, processor processing is given；In addition, the data of mobile phone uplink are sent to base station.In general, radio circuit includes
But be not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, radio frequency electrical
Road can also be communicated with network and other equipment by radio communication.Above-mentioned wireless communication can use any communication standard or association
View, including but not limited to global system for mobile communications (GSM, Global System for Mobilecommunication) are led to
With grouping wireless service (GPRS, General Packet Radio Service), CDMA (CDMA, Code Division
Multiple Access), it is wideband code division multiple access (WCDMA, WidebandCode Division Multiple Access), long
Phase evolution (LTE, Long Term Evolution), Email, short message service (SMS, Short Messaging
Service) etc..
Wherein, memory can be used for storing software program and module, and processor is stored in the soft of memory by operation
Part program and module, to execute various function application and the data processing of mobile phone.Memory can include mainly storage journey
Sequence area and storage data field, wherein storing program area can storage program area, the application program needed at least one function (such as
Sound-playing function, image player function etc.) etc.；Storage data field can be stored uses created data (such as according to mobile phone
Audio data, phone directory etc.) etc..In addition, memory may include high-speed random access memory, can also include non-volatile
Memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.
Input unit can be used for receiving the number or character information of input, and generate the user setting and work(with mobile phone
Related key signals can be controlled.Specifically, input unit may include touch panel and other input equipments.Touch panel,
Referred to as touch screen, collect user on it or neighbouring touch operation (for example user is any suitable using finger, stylus etc.
The operation of object or attachment on touch panel or near touch panel), and driven accordingly according to preset formula
Attachment device.Optionally, touch panel may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor, and can receiving area
It manages the order that device is sent and is executed.Furthermore, it is possible to a variety of using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes touch panel.In addition to touch panel, input unit can also include other input equipments.Specifically, other are inputted
Equipment can include but is not limited to physical keyboard, button 320 (such as volume control button, switch key etc.), trace ball, mouse
It is one or more in mark, operating lever etc..
Wherein, display unit can be used for showing information input by user or be supplied to user information and mobile phone it is each
Kind menu.Display unit may include display panel, optionally, liquid crystal display (LCD, Liquid Crystal may be used
Di splay), the forms such as Organic Light Emitting Diode (OLED, Organic Light-Emitting Diode) configure display surface
Plate.Further, touch panel can cover display panel, when touch panel detects on it or after neighbouring touch operation,
Processor is sent to determine the type of touch event, device is followed by subsequent processing and is provided on a display panel according to the type of touch event
Corresponding visual output.
Wherein, the position in the outer display panel of the visual output which can identify, can be used as aftermentioned " viewing area
Domain ".The function that outputs and inputs that mobile phone can be realized using touch panel and display panel as two independent components, also may be used
That mobile phone is realized so that touch panel and display panel is integrated outputs and inputs function.
In addition, mobile phone may also include at least one sensor, such as attitude transducer, optical sensor and other sensings
Device.
Specifically, attitude transducer is referred to as motion sensor, also, as one kind of the motion sensor, can
To enumerate gravity sensor, cantilevered shifter is made using elastic sensing element in gravity sensor, and using the sensitive member of elasticity
Energy-stored spring made of part drives electric contact, to realize the variation that Gravity changer is converted into electric signal.
As the another kind of motion sensor, accelerometer sensor can be enumerated, accelerometer sensor can detect all directions
Upper (generally three axis) acceleration magnitude, can detect that size and the direction of gravity, can be used to identify mobile phone posture when static
It (for example pedometer, is struck using (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function
Hit) etc..
Motion sensor listed above may be used as aftermentioned " attitude parameter " element of acquisition, but be not limited to
This, other sensors that can obtain " attitude parameter " are each fallen in the scope of protection of the utility model, for example, gyroscope etc.,
Also, the operation principle and data handling procedure of the gyroscope can be similar to the prior art, here, in order to avoid repeating, save
Slightly its detailed description.
In addition, as sensor, can also configure barometer, hygrometer, thermometer and infrared sensor etc., other are sensed
Device, details are not described herein.
Optical sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ambient light
The light and shade of line adjusts the brightness of display panel, proximity sensor can when mobile phone is moved in one's ear, close display panel and/or
Backlight.
Voicefrequency circuit, loud speaker and microphone can provide the audio interface between user and mobile phone.Voicefrequency circuit can will connect
The transformed electric signal of audio data received, is transferred to loud speaker, and voice signal output is converted to by loud speaker；Another party
The voice signal of collection is converted to electric signal by face, microphone, is converted to audio data after being received by voicefrequency circuit, then by audio
After the processing of data output processing device, through radio circuit to be sent to such as another mobile phone, or audio data exported to storage
Device is to be further processed.
WiFi belongs to short range wireless transmission technology, mobile phone can help user to send and receive e-mail by WiFi module,
Browse webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.
Processor is that the control centre of mobile phone is passed through using the various pieces of various interfaces and connection whole mobile phone
Operation executes the software program and/or module being stored in memory, and calls the data being stored in memory, executes
The various functions and processing data of mobile phone, to carry out integral monitoring to mobile phone.Optionally, processor may include one or more
Processing unit；Preferably, processor can integrate application processor and modem processor, wherein application processor is mainly located
Operating system, user interface and application program etc. are managed, modem processor mainly handles wireless communication.
It is understood that above-mentioned modem processor can not also be integrated into processor.
Also, the processor can execute same or similar with processing unit as the realization element of above-mentioned processing unit
Function.
Mobile phone further includes the power supply (such as battery) powered to all parts.
Power supply can be logically contiguous with processor by power-supply management system, is managed to be realized by power-supply management system
The functions such as charging, electric discharge and power managed.Although being not shown, mobile phone can also be no longer superfluous herein including bluetooth module etc.
It states.
It should be noted that mobile phone is only the citing of a kind of electronic equipment 300, the utility model is simultaneously not particularly limited, this
Utility model can be applied to the electronic equipments such as mobile phone, tablet computer, and the utility model does not limit this.
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：
Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
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：
Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (10)
1. a kind of pcb board component, which is characterized in that including：
Plate body, the plate body are equipped with conducting wire；
Shielding case, the open end of the shielding case is connected with the plate body and the open end of the shielding case has for avoiding
State the evacuation notch of conducting wire；
Sealing element, the sealing element are located at the evacuation indentation, there to seal the evacuation notch.
2. pcb board component according to claim 1, which is characterized in that the sealing element is sealing foam.
3. pcb board component according to claim 2, which is characterized in that the sealing foam is annular and is sleeved on outside described
On conducting wire, the periphery wall of the sealing foam with it is described evacuation notch inner wall and the plate body it is corresponding with the evacuation notch
Position cooperation.
4. pcb board component according to claim 1, which is characterized in that the evacuation notch is formed as semicircular in shape.
5. pcb board component according to claim 1, which is characterized in that the evacuation notch is formed as square configuration.
6. pcb board component according to claim 5, which is characterized in that bottom wall and the plate body of the evacuation notch it
Between the shortest distance be H, the H meets：0.25mm≤H≤0.3mm.
7. pcb board component according to claim 1, which is characterized in that the open end of the shielding case is welded with the plate body
It connects connected.
8. pcb board component according to claim 1, which is characterized in that the shielding case is integrated stamping parts.
9. pcb board component according to claim 1, which is characterized in that the evacuation notch is multiple.
10. a kind of electronic equipment, which is characterized in that include the pcb board component according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820254536.XU CN207783436U (en) | 2018-02-12 | 2018-02-12 | Pcb board component and electronic equipment with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820254536.XU CN207783436U (en) | 2018-02-12 | 2018-02-12 | Pcb board component and electronic equipment with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207783436U true CN207783436U (en) | 2018-08-28 |
Family
ID=63210257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820254536.XU Expired - Fee Related CN207783436U (en) | 2018-02-12 | 2018-02-12 | Pcb board component and electronic equipment with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207783436U (en) |
-
2018
- 2018-02-12 CN CN201820254536.XU patent/CN207783436U/en not_active Expired - Fee Related
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