CN105826957B

CN105826957B - Electronic device

Info

Publication number: CN105826957B
Application number: CN201510010540.2A
Authority: CN
Inventors: 庄顺荣; 葛明琪; 林宗正
Original assignee: Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Interconnect Technology Ltd
Priority date: 2015-01-09
Filing date: 2015-01-09
Publication date: 2020-03-31
Anticipated expiration: 2035-01-09
Also published as: CN105826957A

Abstract

The invention discloses an electronic device, which is used for being matched with a mobile device with a charging receiving module and an electrified accessory communicated with an external power supply, and comprises a first electric permanent magnet module, a conductive accessory and a charging transmitting module, wherein the conductive accessory is electrically communicated with the electrified accessory and is connected with the external power supply so as to supply power to the charging transmitting module; when the electronic device is electrified with reverse current, the suction force of the first electro-permanent magnet module is weakened, so that the electronic device releases the mobile equipment.

Description

Electronic device

[ technical field ] A method for producing a semiconductor device

The present invention relates to electronic devices, and particularly to an electro-permanent magnetic electronic device.

[ background of the invention ]

In the related prior art, reference is made to taiwan patent No. TWM438069, which discloses an electronic device with an electromagnetic positioning function, comprising: a body; a bidirectional wireless charging and discharging unit arranged in the machine body, wherein the bidirectional wireless charging and discharging unit comprises a power supply module, a control circuit module electrically connected with the power supply module and a transmitting and receiving circuit module electrically connected with the control circuit module, the control circuit module is provided with a magnetic pole control circuit capable of changing the current direction, and the magnetic pole control circuit is electrically connected with the power supply module; and an electromagnetic component, which is arranged at one side of the machine body and is electrically connected with the magnetic pole control circuit, the electromagnetic component has two different magnetic poles with changeable polarity, and a distance is kept between the electromagnetic component and the transmitting and receiving circuit module. For the related prior art, please refer to chinese utility model publication No. CN202111495, which discloses a handheld electronic device with a positioning function, comprising: a body; a bidirectional wireless charging and discharging unit which is arranged in the machine body and is provided with a transmitting and receiving circuit module; at least one positioning component, which is arranged on one side of the machine body and has a spacing distance with the transceiving circuit module; the corresponding positioning component is also arranged on the side of the machine body, corresponds to the positioning component and has the function of positioning each other, and the arrangement position of the corresponding positioning component arranged on the side corresponds to the arrangement position of the positioning component; therefore, any two palm electronic devices can be positioned by the positioning component and the corresponding positioning component, so that the transceiving circuit modules of the two palm electronic devices can accurately correspond to each other. U.S. patent 3671893 issued on No. 6/20 of 1972 discloses that a coil is wound around a permanent magnet, and current is applied to the coil to generate a magnetic field with a polarity opposite to that of the permanent magnet. The permanent magnet provides magnetic force to the rotor to rotate the rotor to the release position. The restoring device drives the rotor to move to the locking position and is adsorbed by the permanent magnet. U.S. patent publication No. 20130135067, published 5/30/2013, discloses a magnetic object holder comprising a permanent magnet, a pair of polar components, a magnetizing component, and a coil. A first polar assembly in the pair of polar assemblies is matched with a first pole (N pole or S pole) of the permanent magnet and is provided with a first retaining surface, and a second polar assembly is matched with the other pole of the permanent magnet and is provided with a second retaining surface. The first end face of the magnetizing assembly is in contact with the first polarity assembly, and the second end face of the magnetizing assembly is in contact with the second polarity assembly. The coil surrounds the magnetizing assembly. The coil is electrified to generate a magnetic field with the same polarity as the first pole of the permanent magnet. The first and second holding surfaces of the first and second polarity units attract the magnetic material in the magnetic material holder.

However, with the wide use of wireless charging applications, it is very important to be able to accurately position the wireless charging retractable module, and the aforementioned cases are inaccurate in positioning or not fixed firmly, and cannot safely, stably and accurately complete wireless connection. Meanwhile, the common electromagnet in the prior art needs to be continuously powered, so that the energy and the power are greatly consumed, and the electromagnet is not adsorbed immediately after being powered off accidentally, so that the problems of connection failure, unsuccessful charging and the like are easily caused.

Therefore, there is a need to provide a new electronic device to overcome the above-mentioned drawbacks.

[ summary of the invention ]

The invention aims to provide an electronic device which has stable suction force, saves energy and electricity, and is safe and reliable.

In order to achieve the above object, the present invention discloses an electronic device, for cooperating with a mobile device having a charging receiving module and a power-on accessory connected with an external power source, the electronic device includes a first electro-permanent magnet module, a conductive accessory and a charging transmitting module, the conductive accessory is electrically connected with the power-on accessory and is connected with the external power source so as to supply power to the charging transmitting module, wherein, when the electronic device is powered on with current, the first electro-permanent magnet module has enhanced suction force to attract the mobile device, so that the charging transmitting module cooperates with the charging receiving module of the mobile device to realize charging the mobile device; when the electronic device is electrified with reverse current, the suction force of the first electro-permanent magnet module is weakened, so that the electronic device releases the mobile equipment.

In order to achieve the above object, the present invention also discloses an electronic device assembly, which is used in cooperation with a power-on accessory connected with an external power supply, the electronic device assembly includes an electronic device and a mobile device electrically connected with the electronic device, the electronic device includes a first electro-permanent magnet module, a conductive accessory and a charging emission module, the mobile device includes an induction sheet matched with the first electro-permanent magnet module and a charging reception module matched with the charging emission module, the conductive accessory is electrically connected with the power-on accessory and is connected with the external power supply so as to supply power to the charging emission module, wherein, when the electronic device is powered with a forward current, the first electro-permanent magnet module has an enhanced suction force to attract the mobile device, so that the charging emission module is matched with the charging reception module of the mobile device to charge the mobile device; when the electronic device is electrified with reverse current, the suction force of the first electro-permanent magnet module is weakened, so that the electronic device releases the mobile equipment.

Compared with the prior art, the invention has the following beneficial effects: the electronic device adopts the electro-permanent magnet technology, only the instant power supply is switched on when the magnetizing and demagnetizing states are converted, and no electricity is used in the working process, so that the phenomenon that the attraction is influenced by heating and temperature rise caused by continuous electricity consumption of the traditional electromagnet does not exist, and meanwhile, the device is energy-saving, electricity-saving, free of temperature rise, deformation and power failure and loss of magnetism danger, safe and reliable.

[ description of the drawings ]

Fig. 1 is a perspective view of an electronic device of the present invention in conjunction with a mobile device.

Fig. 2 is a partially exploded perspective view of fig. 1.

Fig. 3 is a partially exploded perspective view of fig. 2 viewed from another direction.

Fig. 4 is a schematic view of the electronic device of fig. 1 with the back plate removed.

Fig. 5 is a schematic view of the panel of fig. 4 taken out again.

Fig. 6 is a perspective view of the electronic device of the first embodiment of the invention fixed to the supporting frame after being matched with the mobile device.

Fig. 7 is a perspective view of fig. 6 viewed from another direction.

Fig. 8 is an exploded perspective view of the support bracket of fig. 6.

Fig. 9 is a schematic view of the electronic device of the second embodiment of the invention being fixed to a power plug after being engaged with a mobile device.

Fig. 10 is a schematic view of another embodiment of an electro-permanent magnet module wound with a coil for an electronic device according to the present invention.

Fig. 11 is an exploded perspective view of the wound electro-permanent magnet module of fig. 10.

[ description of main reference symbols ]

Electronic device 100 substrate 1

First side 11 of anchor point 10

Second side 12 first button 13

Wireless charging transmission module 14 socket connector 15

Electro-permanent magnet module 16, 16' second electro-permanent magnet module 161

First electric permanent magnet module 162 permanent magnet alloys 163 and 163'

Magnetizer 164, 164 'coil 165, 165'

Recess 20 of back plate 2

Second button 22 of the storage groove 21

Contact sheet 23 printed circuit board assembly 3

Mobile device 200 mobile communication device 201

Shell 310 of jacket 300

Receiving portion 312 of bottom plate 311

Side wall 313 receiving cavity 314

Receiving hole 315 mainboard 320

Plug connector 321 wireless charging receiving module 322

Circuit board 323 stop 324

Contact 326 of sensor strip 325

Base 401 of support frame 400

Connecting rod 402 socket assembly 403

Top cover 404 first guide tab 405

Power plug 500 plug 501

Upper cover 502

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

An embodiment of the electronic device 100 of the present invention is described in detail below with reference to fig. 1 to 11.

Referring to fig. 1 to 4, the electronic device 100 of the present invention, which can be used with a mobile device 200, includes a substrate 1, a backplane 2 covering the substrate 1, and a printed circuit board assembly 3 disposed between the substrate 1 and the backplane 2.

Referring to fig. 2 to 4, a first side surface 11 is a surface of the substrate 1 attached to the mobile device 200, and the first side surface 11 is provided with a first button 13 and a pair of positioning points 10. The side of the substrate 1 facing away from the mobile device 200 is a second side 12. The second side 12 has a wireless charging transmitting module 14 electrically connected to the pcb assembly 3, a socket connector 15 and an electro-permanent magnet module 16 wound with a coil. The electro-permanent magnet module 16 includes a second electro-permanent magnet module 161 close to the wireless charging transmission module 14 and a first electro-permanent magnet module 162 far from the wireless charging transmission module 14. The second electro-permanent magnet module 161 is controlled by the first button 13. The socket connector 15 and the electric permanent magnet module 16 are respectively located on two sides of the wireless charging and transmitting module 14 along the length direction of the substrate 1. The second electro-permanent magnet module 161 and the first electro-permanent magnet module 162 each have a pair of permanent magnet alloys 163 transversely disposed and a pair of magnetizers 164 at two ends. A coil 165 for passing current is wound around the pair of permanent magnetic alloys 163. The pair of magnetizers 164 is a magnetic alloy having a high magnetic permeability and a high saturation magnetic flux density. One of the pair of permanent magnetic alloys 163 is a soft magnetic material, has low coercive force and high magnetic conductivity, is easily interfered by an external magnetic field, is easily magnetized, and is also easily demagnetized; the other is hard magnetic material, has high coercive force, residual magnetic flux density and stability, and is not easily interfered by an external magnetic field.

The back plate 2 has a receiving groove 21 and a second button 22 provided corresponding to the receptacle connector 15. The receiving slot 21 is disposed on the top of the back plate 2 for receiving and fixing the socket connector 15. The second button 22 is disposed on one side of the back plate 2. The back plate 2 is a concave portion 20 corresponding to the second electro-permanent magnet module 161 of the electro-permanent magnet module 16. The recess 20 is provided with a contact piece 23. The first electro-permanent magnet module 162 is controlled by the second button 22.

Referring to fig. 5, the mobile device 200 is a mobile communication apparatus 201 with a casing 300 according to the present embodiment. The housing 300 includes a housing 310 and a motherboard 320 at least partially embedded in the housing 310. The housing 310 includes a bottom plate 311, a rectangular parallelepiped receiving portion 312 located at the bottom of the bottom plate 311, and a sidewall 313 surrounding the bottom plate 311 and the receiving portion 312 to form a receiving cavity 314. The top of the receiving portion 312 near the bottom plate 311 is formed with a receiving hole 315. The main board 320 is provided with a plug connector 321, a wireless charging receiving module 322, a circuit board 323 and a stop 324, wherein the plug connector 321 is located at the bottom and penetrates through the accommodating hole 315, the circuit board 323 is fixedly matched with the plug connector 321 and the wireless charging receiving module 322, and the stop 324 is located behind the plug connector 321. The mobile communication device 201 has a receptacle connector (not shown) for charging. After the outer cover 300 is sleeved on the mobile communication device 201, the plug connector 321 is in butt joint with the socket connector to be electrically conducted. The stopper 324 is capable of being retained in the receiving hole 315 located on the main plate 320. The main board 320 corresponds to the sensing piece 325 of the first electro-permanent magnet module 162 of the electro-permanent magnet module 16, and contacts 326 matched with the positioning points 10 of the electronic device 100 are disposed at two sides of the sensing piece 325. The plug connector 321 and the circuit board 323 are both covered in the receiving portion 312, and the main board 320 is located behind the bottom plate 311 of the housing 310.

Referring to fig. 6 to 8, in the first embodiment of the invention, the electronic device 100 is fixed to the supporting frame 400 by suction. Referring to fig. 8, the supporting frame 400 includes a base 401, a connecting rod 402 fixed on the base 401, a socket assembly 403 sleeved on the connecting rod 402, a top cover 404 covering the socket assembly 403, and a first guiding tab 405 made of a metal material and located between the socket assembly 403 and the top cover 404.

In use, after the first button 13 on the electronic device is activated, the second electro-permanent magnet module 161 is energized with a positive current, so as to magnetically enhance and adsorb the first guide tab 405 of the supporting frame 400. The electronic device 100 is stably attached to the supporting frame 400. The adsorption state can be maintained after power-off.

When the mobile device 200 is installed in the electronic apparatus 100, after the second button 22 on the electronic apparatus 100 is activated, the first electro-permanent magnet module 162 is energized with a forward current, and the magnetic force of the first electro-permanent magnet module 162 is enhanced to attract the induction sheet 325 in the mobile device 200. The contacts 326 of the casing 300 are oriented precisely with respect to the location 10 of the electronic device 100. The electronic apparatus 100 is made to stably adsorb the mobile device 200. The adsorption state can be maintained after power-off.

A power-on accessory (not shown) is used for charging. The power-on accessory in this embodiment is a cable connector having one end of a standard USB plug connector and the other end of a Micro USB plug connector. During charging, the microsusb plug connector of the cable connector is inserted into the socket connector 15 of the electronic device 100, and the standard USB plug connector is connected to an external power source to supply power to the wireless charging transmitter module 14, so as to charge the wireless charging receiver module 322 of the mobile device 200.

When the second button 22 is activated, the electronic device 100 is powered on by a reverse current, the magnetic force of the second electro-permanent magnet module 161 is weakened, the attraction between the second electro-permanent magnet module and the induction sheet 325 is reduced, and the supporting frame 400 can be easily removed. When the first button 13 is activated, the electronic device 100 is powered on by a reverse current, the magnetic force of the first electro-permanent magnet module 162 is weakened, the attraction force between the first electro-permanent magnet module and the induction sheet 325 is reduced, and the mobile device 200 can be easily removed.

Referring to fig. 9, with reference to fig. 2 and 3, in a second embodiment of the present invention, the mobile device 200 is attached to the electronic apparatus 100 and then attached to the power plug 500 in the same manner as the first embodiment. Referring to fig. 10, the power plug 500 includes a plug 501, an upper cover 502 covering the plug 501, and a second guide tab (not shown) disposed between the plug 501 and the upper cover 502. A conductive sheet (not shown) is provided on the upper cover 502.

In use, when the second button 22 of the electronic device 100 is activated, the second electro-permanent magnetic module 161 is energized with a positive current to magnetically enhance the attraction of the second conductive tab 503 of the power plug 500. Thereby causing the contact pads 23 of the electronic device 100 to contact the conductive pads on the top cover 502 of the power plug 500. The electronic device 100 is stably attached to the power plug 500. The adsorption state can be maintained after power-off.

During charging, the plug 501 of the power plug 500 is connected to an external power source, so that the contact sheet 23 of the electronic device 100 is contacted with the conductive sheet on the upper cover 502 of the power plug 500 to supply power to the wireless charging transmitting module 14, and further charge the wireless charging receiving module 322 of the mobile device 200.

When the second button 22 is activated, the electronic device 100 is powered on by a reverse current, the magnetic force of the second electromagnetic module 161 is weakened, the attraction force between the second electromagnetic module and the second guiding tab 503 is reduced, and the power plug 500 can be easily removed. When the first button 13 is activated, the electronic device 100 is powered on by a reverse current, the magnetic force of the first electro-permanent magnet module 162 is weakened, the attraction force between the first electro-permanent magnet module and the induction sheet 325 is reduced, and the mobile device 200 can be easily removed.

As an alternative to the second embodiment, the power plug 500 may be provided with a cable instead of the conductive sheet (not shown) on the upper cover 502. The cable is used and has one end inserted into the receptacle connector 15 of the electronic device 100. When the power plug is connected to an external power source, the electronic apparatus 100 may be powered, and then the mobile device 200 may be charged. The manner in which the mobile device 200 and the power plug 500 are attached to or detached from the electronic apparatus 100 is the same as that of the second embodiment.

The receptacle connector 15 and the contact piece 23 in the second embodiment in the first and second embodiments are both referred to as conductive fittings. The cable connector of the first embodiment, the conductive sheet on the upper cover 502 of the second embodiment, and the cable of the second embodiment in the modification may be referred to as a power-on fitting.

The forward current is a current for increasing the magnetic force of the first electro-permanent magnet module 162 or the second electro-permanent magnet module 161. The forward current passing through first electro-permanent magnet module 162 is not necessarily in the same direction as the forward current passing through second electro-permanent magnet module 161.

The electro-permanent magnet module 16 may be composed of a plurality of permanent magnet alloys 163 and a plurality of magnetizers 164. Referring to fig. 10 and eleven, the electro-permanent magnet module 16 ' is formed by a pair of permanent magnet alloys 163 ' and three magnetizers 164 ' connected together. The pair of permanent magnetic alloys 163 'is wound with a coil 165' for passing current. In sequence, the electro-permanent magnet module 16 may be composed of X permanent magnet alloys 163 and X +1 magnetizers 164, and is adapted to the requirements of different strengths of suction forces.

It should be noted that the wireless charging module used in the present invention conforms to the Qi standard of the wireless charging alliance. The electro-permanent magnet technology used in the present invention can currently employ electromagnetic induction or electromagnetic resonance. Compared with a common electromagnet, the electric permanent magnet magnetizing and demagnetizing cycle is fast, the working magnetic force is not affected by power supply faults such as system power failure and the like in work after magnetizing, the remanence of the demagnetizing back surface is clean, and the fast stress release can be realized. The matched electric control function is complete, the control is convenient, and the button control is adopted to control the magnetization and demagnetization. The interior of the electric permanent magnet is free of any moving part, the integral strength is high, the reliability and durability are realized, the performance is stable, special maintenance is not needed, and the service life is long.

The above description is only for the purpose of describing several embodiments of the present invention, and not for the purpose of describing all embodiments, and any equivalent variations of the technical solutions of the present invention which are obvious to those skilled in the art after reading the present specification are intended to be covered by the claims of the present invention.

Claims

1. An electronic device is used in cooperation with a mobile device with a charging receiving module and an electrified accessory communicated with an external power supply, and comprises a first electro-permanent magnet module, a conductive accessory and a charging transmitting module, wherein the conductive accessory is electrically communicated with the electrified accessory and is connected with the external power supply so as to supply power to the charging transmitting module, when the electronic device is electrified with forward current, the first electro-permanent magnet module enhances the suction force to attract the mobile device, so that the charging transmitting module is matched with the charging receiving module of the mobile device to realize charging of the mobile device; when the electronic device is electrified with reverse current, the suction force of the first electro-permanent magnet module is weakened, so that the electronic device releases the mobile equipment.

2. The electronic device of claim 1, wherein: the electronic device also comprises a second electro-permanent magnet module, and when the electronic device is electrified with forward current, the suction force of the second electro-permanent magnet module is enhanced; when the reverse current is introduced, the suction force of the second electro-permanent magnet module is weakened.

3. The electronic device of claim 2, wherein: the conductive fitting is a receptacle connector that mates with a plug connector disposed on the power-on fitting.

4. The electronic device of claim 2, wherein: the second electro permanent magnet module attracts the support frame with the first guide connection piece when the attraction force of the second electro permanent magnet module is enhanced and is supported on the support frame, and the support frame is released when the attraction force of the second electro permanent magnet module is weakened.

5. The electronic device of claim 2, wherein: the conductive accessory is a contact piece, the power-on accessory is a conductive sheet arranged on the power plug, the power-on accessory is adsorbed when the suction force of the second electro-permanent magnet module is enhanced, so that the conductive sheet on the power plug is electrically conducted with the contact piece, and the power-on accessory is released when the suction force of the second electro-permanent magnet module is weakened.

6. The electronic device of claim 2, wherein: the first electro-permanent magnet module and the second electro-permanent magnet module are arranged in a separated mode, and the charging and transmitting module is arranged on one side of the first electro-permanent magnet module and one side of the second electro-permanent magnet module.

7. The electronic device of claim 2, wherein: the electric permanent magnet module comprises a plurality of first electric permanent magnet modules which are connected and arranged and a plurality of second electric permanent magnet modules which are connected and arranged.

8. An electronic device assembly is matched with an electrified accessory which is communicated with an external power supply for use, and comprises an electronic device and a mobile device which is electrically connected with the electronic device, wherein the electronic device comprises a first electric permanent magnet module, a conductive accessory and a charging emission module; when the electronic device is electrified with reverse current, the suction force of the first electro-permanent magnet module is weakened, so that the electronic device releases the mobile equipment.

9. The electronic device combination of claim 8, wherein: the mobile equipment comprises a mobile communication device with a socket connector and an outer sleeve, wherein the induction sheet and the charging receiving module are positioned in the outer sleeve.

10. The electronic device combination of claim 9, wherein: the outer sleeve is provided with a plug connector, and the plug connector and the socket connector are electrically communicated to enable the mobile communication device to be communicated with the outer sleeve.