CN110034420A - A kind of mobile phone antenna elastic piece stability regulating device and method - Google Patents
A kind of mobile phone antenna elastic piece stability regulating device and method Download PDFInfo
- Publication number
- CN110034420A CN110034420A CN201810029315.7A CN201810029315A CN110034420A CN 110034420 A CN110034420 A CN 110034420A CN 201810029315 A CN201810029315 A CN 201810029315A CN 110034420 A CN110034420 A CN 110034420A
- Authority
- CN
- China
- Prior art keywords
- solenoid
- control unit
- antenna
- voltage
- regulating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 19
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 37
- 238000001514 detection method Methods 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010011376 Crepitations Diseases 0.000 description 1
- 230000005483 Hooke's law Effects 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/007—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for elastomeric connecting elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/02—Connectors or connections adapted for particular applications for antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/16—Connectors or connections adapted for particular applications for telephony
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Aerials (AREA)
- Telephone Set Structure (AREA)
Abstract
The application proposes a kind of mobile phone antenna elastic piece stability regulating device and method, it is related to communication technique field, the regulating device includes: permanent magnet, solenoid and control unit, described control unit, it is set as being electrically connected with the solenoid, provides voltage for the solenoid；The inside of antenna shrapnel is arranged in the solenoid, and coupling corresponding with the permanent magnet is arranged；Magnetic field is generated using the voltage that described control unit provides；The permanent magnet, is arranged in inside the contact point of antenna shrapnel, mutually exclusive with the solenoid under the magnetic fields that the solenoid generates, and compresses the antenna shrapnel.Overcome the problems, such as that existing mobile phone antenna elastic piece bring elastic slice in production test and user are reprocessed loosens, the adaptive technique being grounded using elastic slice is innovated by number and magnetoelectricity technology and elastic piece structure so that elastic slice still keeps relatively good contact in maintenance dismounting and hardware debugging.
Description
Technical field
The present invention relates to communication technique fields, and in particular to a kind of mobile phone antenna elastic piece stability regulating device and method.
Background technique
Currently, mobile phone machinery antenna shrapnel (containing the round elastic slice for having spring) it is main by elastic slice with need to contact
Metallic region tightly presses together, recycle elastic slice itself rebound elongation so that the two contact it is even closer.With bullet
The antenna shrapnel of spring then utilizes the coefficient of elasticity of spring, and when assembling, spring is compressed, spring in the range of elastic deformation allows
It can stretch automatically, so that the elastic slice being wrapped in outside spring can be good at touching metal surface, reach ideal contact effect
Fruit.
Problem of the existing technology is that metal fatigue is the characteristic that common elastic slice material can not evade.Metal inside knot
Structure is simultaneously uneven, to cause the imbalance of stress propagation, has individual places that can become the concentration zones of stress.At the same time, golden
There is also many small crackles for fault location inside belonging to.Under the continuous action of power, underbead crack can be increasing, in material
It is fewer and fewer that stress part can be transmitted.It finally will appear the fracture of metal inside.Metal clips is when long-term crimping in bullet
Piece bending place is easy to produce metal fatigue, and then influences the contact performance of elastic slice.Such case to research and development debugging, production and
User uses and brings reverse side effect.
In addition, the elastic slice as caused by patch accuracy of machines is excessively squeezed and deformed or producing line worker in production practice
Elastic slice self-reparability caused by inappropriate complete machine assembling mode reduce, caused by elastic slice poor contact phenomenon.Elastic slice contacts not
Reliability good to easily cause some unforeseen problems, that debugging and producing line to engineer and related research staff produce
Cause negative effect.Some users can be because the operations such as Cellphone Repairs dismounting rear cover also bring along elastic slice contact formedness simultaneously
Reduction.
Summary of the invention
The present invention provides a kind of mobile phone antenna elastic piece stability regulating device and method, so that antenna shrapnel is dismounted in maintenance
With the contact kept in hardware debugging.
In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is as follows:
In a first aspect, the present invention provides a kind of mobile phone antenna elastic piece stability regulating device, comprising:
Permanent magnet, solenoid and control unit,
Described control unit, is set as being electrically connected with the solenoid, provides voltage for the solenoid；
The inside of antenna shrapnel is arranged in the solenoid, and coupling corresponding with the permanent magnet is arranged；Using described
The voltage that control unit provides generates magnetic field；
The permanent magnet, is arranged in inside the contact point of antenna shrapnel, under the magnetic fields that the solenoid generates, with
The solenoid is mutually exclusive, compresses the antenna shrapnel.
Preferably, the solenoid is elastic solenoid.
Preferably, the regulating device further include: detection circuit；
The detection circuit, setting are electrically connected with the control unit, and detect the curent change of antenna shrapnel signal path
Situation or voltage change situation.
Preferably, the regulating device further include: trigger；
The trigger is arranged on the access of detection circuit and described control unit；When detection circuit detection
When curent change situation or voltage change situation meet preset condition, triggering described control unit is adjusted to the solenoid and mentions
The voltage value of confession.
Second aspect, the present invention also provides a kind of mobile phone antenna elastic piece stability adjusting methods, comprising:
Predeterminated voltage is provided for solenoid；
Under the magnetic fields that the solenoid generates, permanent magnet and the solenoid are mutually exclusive, compress the antenna
Elastic slice.
Preferably, the adjusting method further include:
The curent change situation or voltage change situation for detecting antenna shrapnel signal path, determine the antenna shrapnel
Ground connection situation.
Preferably, the adjusting method further include:
When the curent change situation or voltage change situation of the detection meet preset condition, it is adjusted to the solenoid
The voltage value of offer.
Compared to the prior art the present invention, has the following beneficial effects:
Technical solution of the present invention overcomes existing mobile phone antenna elastic piece bring elastic slice in production test and user are reprocessed
Loosening problem, the adaptive technique being grounded using elastic slice, by number and magnetoelectricity technology and elastic piece structure innovation so that elastic slice
Relatively good contact is still kept in maintenance dismounting and hardware debugging.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the mobile phone antenna elastic piece stability regulating device of the embodiment of the present invention；
Fig. 2 is the flow chart of the mobile phone antenna elastic piece stability adjusting method of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the elastic slice contact of the automatic adjustment of the embodiment of the present invention 1；
Fig. 4 is the flow chart of the automatic adjustment of the antenna shrapnel of the embodiment of the present invention 2.
Specific embodiment
To keep goal of the invention of the invention, technical scheme and beneficial effects more clear, with reference to the accompanying drawing to this
The embodiment of invention is illustrated, it should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
As shown in Figure 1, the embodiment of the present invention provides a kind of mobile phone antenna elastic piece stability regulating device, comprising:
Permanent magnet, solenoid and control unit,
Described control unit, is set as being electrically connected with the solenoid, provides voltage for the solenoid；
The inside of antenna shrapnel is arranged in the solenoid, and coupling corresponding with the permanent magnet is arranged；Using described
The voltage that control unit provides generates magnetic field；
The permanent magnet, is arranged in inside the contact point of antenna shrapnel, under the magnetic fields that the solenoid generates, with
The solenoid is mutually exclusive, compresses the antenna shrapnel.
Solenoid described in the embodiment of the present invention is elastic solenoid.
Elastic solenoid mainly carries out corresponding deformation according to the size of current flowed through in the embodiment of the present invention, and then makes day
The good contact of line elastic slice, shape control are the constant current electrical magnetisation principles based on Biot-Savart law, and electric current is bigger,
Magnetic field is stronger, and solenoidal deformation is bigger.
Regulating device described in the embodiment of the present invention further include: detection circuit；
The detection circuit, setting are electrically connected with the control unit, and detect the curent change of antenna shrapnel signal path
Situation or voltage change situation.
Regulating device described in the embodiment of the present invention further include: trigger；
The trigger is arranged on the access of detection circuit and described control unit；When the electricity of detection circuit detection
When stream situation of change or voltage change situation meet preset condition, triggering described control unit is adjusted to the solenoid and provides
Voltage value.
In mobile phone antenna elastic piece stability regulating device in the embodiment of the present invention, the lower position on elastic slice top is placed
Permanent magnet.By changing through the current direction and size in helix tube, change polarity of the magnetic field and intensity, according to homonymous magnetic pole phase
Mutually repel, synonyms pole attracts each other, the flexible situation on change elastic slice top, to reach optimal contact effect.Detection circuit,
The curent change situation for mainly detecting antenna shrapnel signal path is the solenoidal size of current of detection in fact, corresponding to determine
Solenoid deformation size, while according to the size of electric current, carry out the control and adjusting of deformation size.The testing result of detection circuit
Control unit is fed back to, then by the voltage change at both ends on control unit control solenoid, to change the electricity passed through in solenoid
Stream, the principle for recycling homonymous magnetic pole mutually exclusive adjust contact situation of the elastic slice with contact point.This is that elastic slice stability is automatic
The process of adjusting.
The present invention solve the problems, such as elastic slice poor contact in research and development debugging and caused by index it is insufficient or abnormal, conveniently grind
Hair debugging.
Using the antenna shrapnel of the embodiment of the present invention, solves metal in production, assembling, debugging and user's use process
Tired and bring contacts bad.Entire elastic slice realizes a kind of beneficial by elastic piece structure design, electromagnetic principle and self feed back
In the adaptive elastic slice regulating device that research and development debugging, production and assembly and user use.
As shown in Fig. 2, the embodiment of the present invention provides a kind of mobile phone antenna elastic piece stability adjusting method, comprising:
Predeterminated voltage is provided for solenoid；
Under the magnetic fields that the solenoid generates, permanent magnet and the solenoid are mutually exclusive, compress the antenna
Elastic slice.
Adjusting method described in the embodiment of the present invention further include:
The curent change situation or voltage change situation for detecting antenna shrapnel signal path, determine the antenna shrapnel
Ground connection situation.
It is that can be judged using analog-to-digital conversion that the embodiment of the present invention, which carries out voltage or current detection,.
Adjusting method described in the embodiment of the present invention further include:
When the curent change situation or voltage change situation of the detection meet preset condition, it is adjusted to the solenoid
The voltage value of offer.
The embodiment of the present invention is adjusted according to the data detected, exports corresponding voltage value.
Embodiment 1
As shown in figure 3, this example demonstrates that the process of the elastic slice contact of automatic adjustment:
The top of antenna shrapnel has one piece of permanent magnet first, and permanent magnet is substantially carried out magnetic attraction；In antenna shrapnel
It is internally integrated elastic solenoid, elastic solenoid has electric current to pass through, by changing the size of electric current, to change solenoidal
Magnetic field size according to the mutually exclusive property of homonymous magnetic pole, and then changes the structure of antenna shrapnel, to realize ideal
The automatic adjustment demand of elastic slice.
Specifically, elastic solenoid is connected by cabling and detection circuit with control unit, and control unit mainly passes through and changes
Become the change for being added in the voltage progress electric current at solenoid both ends, detection circuit carries out the detection of electric current, electricity by detection voltage value
The size and magnetic field strength of stream are directly proportional, and have certain mathematical calculating relations, the size in magnetic field and corresponding magnetic field force
It is proportional, so voltage change is exactly the change for leading to magnetic field force, to change the deformation of antenna shrapnel, that is, antenna
The stretching, extension of elastic slice and ground connection.When work, situation is contacted to detect elastic slice by detecting the curent change of antenna shrapnel signal path.
If contact is bad, pass through the voltage difference for increasing elastic solenoid both ends, and then increase through solenoidal electric current, according to complete
Ao-Sa cuts down your law will increase in the magnetic field strength at elastic solenoid both ends at this time, and mutually exclusive using homonymous magnetic pole, elastic slice connects
The permanent magnetic pole in contact bottom can be mobile towards elastic slice contact point direction.In entire adjustment process, detection circuit real time monitoring
The contact condition of elastic slice is preset with providing trigger signal for the variation of solenoid voltage difference of the two ends until elastic slice contact reaches
Scene.
Embodiment 2
For the realization of the automatic adjustment of antenna shrapnel, as shown in Figure 4.Off-mode, the bullet immediately below elastic slice contact point
Spring has a tension due to elastic deformation, according to Hooke's law, it is made to contact point contact with elastic slice.
S01, booting is powered on.
After S02, booting, real-time detection flows through solenoidal electric current.
S03, electric current size reflect the contact condition of elastic slice.
S04, contact it is good when, work normally.
S05, when contacting bad, increase the voltage difference at solenoid both ends, using electric magnetisation and the principle that identical charges repel each other, make
It is mobile towards the direction of shrapnel contact at the top of elastic slice, to improve contact of the elastic slice with contact.To reach optimal contact effect, need
It will be by constantly regulate the voltage difference at solenoid both ends until reaching preset dreamboat, that is, guarantee to pass through elasticity
Solenoidal electric current guarantees in some setting value.
Although disclosed embodiment is as above, its content is only to facilitate understand technical side of the invention
Case and the embodiment used, are not intended to limit the present invention.Any those skilled in the art to which this invention pertains, not
Under the premise of being detached from disclosed core technology scheme, any modification and change can be made in form and details in implementation
Change, but protection scope defined by the present invention, the range that the appended claims that must still be subject to limits.
Claims (7)
1. a kind of mobile phone antenna elastic piece stability regulating device characterized by comprising
Permanent magnet, solenoid and control unit,
Described control unit, is set as being electrically connected with the solenoid, provides voltage for the solenoid；
The inside of antenna shrapnel is arranged in the solenoid, and coupling corresponding with the permanent magnet is arranged；Utilize the control
The voltage that unit provides generates magnetic field；
The permanent magnet, is arranged in inside the contact point of antenna shrapnel, and described under the magnetic fields that the solenoid generates
Solenoid is mutually exclusive, compresses the antenna shrapnel.
2. regulating device as described in claim 1, it is characterised in that: the solenoid is elastic solenoid.
3. regulating device as claimed in claim 2, it is characterised in that: further include: detection circuit；
The detection circuit, setting are electrically connected with the control unit, and detect the curent change situation of antenna shrapnel signal path
Or voltage change situation.
4. regulating device as claimed in claim 3, it is characterised in that: further include: trigger；
The trigger is arranged on the access of detection circuit and described control unit；When the electric current of detection circuit detection
When situation of change or voltage change situation meet preset condition, triggering described control unit is adjusted to what the solenoid provided
Voltage value.
5. a kind of mobile phone antenna elastic piece stability adjusting method characterized by comprising
Predeterminated voltage is provided for solenoid；
Under the magnetic fields that the solenoid generates, permanent magnet and the solenoid are mutually exclusive, compress the antenna shrapnel.
6. adjusting method as described in claim 1, it is characterised in that: further include:
The curent change situation or voltage change situation for detecting antenna shrapnel signal path, determine the ground connection of the antenna shrapnel
Situation.
7. adjusting method as claimed in claim 6, it is characterised in that: further include:
When the curent change situation or voltage change situation of the detection meet preset condition, it is adjusted to the solenoid and provides
Voltage value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029315.7A CN110034420B (en) | 2018-01-12 | 2018-01-12 | Mobile phone antenna elastic sheet stability adjusting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029315.7A CN110034420B (en) | 2018-01-12 | 2018-01-12 | Mobile phone antenna elastic sheet stability adjusting device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110034420A true CN110034420A (en) | 2019-07-19 |
| CN110034420B CN110034420B (en) | 2022-01-25 |
Family
ID=67234394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810029315.7A Active CN110034420B (en) | 2018-01-12 | 2018-01-12 | Mobile phone antenna elastic sheet stability adjusting device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110034420B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101631161A (en) * | 2008-07-15 | 2010-01-20 | 捷讯研究有限公司 | Mobile wireless communications device with antenna contact having reduced RF inductance |
| US20100331050A1 (en) * | 2009-06-25 | 2010-12-30 | Tahk Ui-Soo | Portable terminal |
| CN102866561A (en) * | 2005-11-16 | 2013-01-09 | Va公司 | Non-contact shutter activation system and method |
| CN204304006U (en) * | 2015-01-15 | 2015-04-29 | 南京濠暻通讯科技有限公司 | Antenna for mobile phone contact flat spring |
| CN106229013A (en) * | 2016-07-28 | 2016-12-14 | 中国计量科学研究院 | There is the two-dimensional nano displacement platform of millimeter stroke |
| CN206236802U (en) * | 2016-11-01 | 2017-06-09 | 夏成文 | A kind of deck and the socket being adapted to the deck |
| CN206332205U (en) * | 2016-12-29 | 2017-07-14 | 庄恩贵 | Cable interface component for network security |
| CN206517519U (en) * | 2016-12-31 | 2017-09-22 | 郑州双杰科技股份有限公司 | The wired charging system of unmanned plane |
-
2018
- 2018-01-12 CN CN201810029315.7A patent/CN110034420B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866561A (en) * | 2005-11-16 | 2013-01-09 | Va公司 | Non-contact shutter activation system and method |
| CN101631161A (en) * | 2008-07-15 | 2010-01-20 | 捷讯研究有限公司 | Mobile wireless communications device with antenna contact having reduced RF inductance |
| US20100331050A1 (en) * | 2009-06-25 | 2010-12-30 | Tahk Ui-Soo | Portable terminal |
| CN204304006U (en) * | 2015-01-15 | 2015-04-29 | 南京濠暻通讯科技有限公司 | Antenna for mobile phone contact flat spring |
| CN106229013A (en) * | 2016-07-28 | 2016-12-14 | 中国计量科学研究院 | There is the two-dimensional nano displacement platform of millimeter stroke |
| CN206236802U (en) * | 2016-11-01 | 2017-06-09 | 夏成文 | A kind of deck and the socket being adapted to the deck |
| CN206332205U (en) * | 2016-12-29 | 2017-07-14 | 庄恩贵 | Cable interface component for network security |
| CN206517519U (en) * | 2016-12-31 | 2017-09-22 | 郑州双杰科技股份有限公司 | The wired charging system of unmanned plane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110034420B (en) | 2022-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170040801A1 (en) | Portable solar panel system electrical control | |
| EP4040627A1 (en) | Apparatus and method for detecting foreign objects in wireless power transmission system | |
| CN205671927U (en) | Electric pressure cooker and pressure detection circuit thereof | |
| CN109754866A (en) | Attention training method, device and computer readable storage medium | |
| CN110034420A (en) | A kind of mobile phone antenna elastic piece stability regulating device and method | |
| US8265896B2 (en) | Track detection device and track detection method thereof | |
| CN202013387U (en) | Charger detection circuit | |
| CN206490197U (en) | Electric wire connects box | |
| CN205178532U (en) | Wireless terminal of charging | |
| CN205982548U (en) | Signal plate test fixture | |
| CN209477857U (en) | A kind of workpiece sensing equipment | |
| CN111211815B (en) | Antenna position detection device and detection method | |
| CN208568839U (en) | A kind of transformer terminal test fixture device | |
| CN207719449U (en) | A kind of battery connecting seat terminal structure | |
| CN202486259U (en) | Device for identifying homonym end and synonym end of high-low frequency transformer winding | |
| CN204964558U (en) | Testing fixture | |
| CN105789720A (en) | Charging method and device | |
| CN206321758U (en) | Battery protective plate performance test device | |
| CN205646339U (en) | Smart jack button anti -jamming circuit and smart jack based on thing networking | |
| CN206041796U (en) | A power factor corrects circuit for high -power LED | |
| CN205620478U (en) | A coil check out test set for circuit board | |
| CN209513225U (en) | A kind of high-precision eyeglass anti-blue light detector | |
| CN104957871B (en) | A kind of electric scrubbing brush carrying out vertical tremor using ultrasonic wave | |
| CN104198838B (en) | A kind of mobile terminal vehicle trip's charger overhauls test device | |
| CN207765357U (en) | Button and clothes treatment device including the button |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |