CN210299901U - Card sleeve device with relay wireless charging function - Google Patents

Abstract

The utility model relates to the technical field of wireless charging devices, in particular to a card sleeve device with relay wireless charging, wherein a relay transmitting coil used for transmitting wireless charging energy to an intelligent terminal is arranged in a first panel; the second panel is internally provided with a relay receiving coil for receiving wireless charging energy, and the relay receiving coil and the relay transmitting coil are respectively arranged on two sides of the clamping groove structure and are electrically connected through a high-frequency low-resistance circuit. When the card sleeve device is applied, the card sleeve device can relay wireless charging energy to realize wireless charging of the intelligent terminal; the user can with the electronic card peg graft temporarily extremely in the draw-in groove structure, follow intelligent terminal and conveniently carry together, and because the electronic card position is in between two shielding baffles, do not disturb, do not harm, do not influence this electronic card when carrying out wireless charging to intelligent terminal.

Description

Card sleeve device with relay wireless charging function

Technical Field

The utility model relates to a wireless charging device technical field, concretely relates to cutting ferrule device with relay wireless charging.

Background

Present intelligent terminal is more and more intelligent, more and more convenient, on intelligent terminal charging mode, wireless charging mode will replace wired charging mode, carry out intelligent terminal and charge, and traditional intelligent terminal still integrates a lot of other functions usually, for example intelligent terminal combines with electronic card storage device, will need hand-carry, the electronic card of frequent use is placed with intelligent terminal together, high durability and convenient use, but along with the rise of wireless charging technique, if intelligent terminal is in wireless charging process, still place the electronic card near intelligent terminal, very easily lead to the demagnetization of electronic card, make the electronic card normally work, and the product that does not solve this type of problem appears on the market at present.

SUMMERY OF THE UTILITY MODEL

In order to effectively solve the problem, the utility model provides a cutting ferrule device with relay wireless charging.

The utility model discloses a concrete technical scheme as follows: a card sleeve device with relay wireless charging function is matched with wireless charging equipment to realize wireless charging of an intelligent terminal, and comprises a first panel, a second panel and a card slot structure, wherein the first panel and the second panel are arranged oppositely, and the card slot structure is formed between the first panel and the second panel;

a relay transmitting coil used for transmitting wireless charging energy to the intelligent terminal is arranged in the first panel;

the second panel is internally provided with a relay receiving coil for receiving wireless charging energy, and the relay receiving coil and the relay transmitting coil are respectively arranged on two sides of the clamping groove structure and are electrically connected through a high-frequency low-resistance circuit.

Further, the ferrule device further comprises at least one shielding partition plate for inhibiting the alternating magnetic field;

the shielding partition plate is arranged on one side, opposite to the intelligent terminal, of the relay transmitting coil;

and a shielding partition plate is arranged on one side of the relay receiving coil facing the intelligent terminal.

Furthermore, the relay transmitting coil and the relay receiving coil form a coil group which is oppositely arranged;

the area surrounded by the outer contour of the projection of the shielding partition plate on a plane vertical to the axis of the spiral coil of the coil group is A;

the area surrounded by the outer contour of the coil group projected on a plane vertical to the axis of the spiral coil is B:

the plane projected area A of the shielding partition is not less than 1/5 of the projected area B of the coil group on the same plane.

Furthermore, the shielding clapboard comprises a copper sheet, an aluminum sheet, an iron sheet and a steel sheet.

Further, the shielding clapboard comprises a steel sheet, an iron sheet and a copper-iron multilayer combination.

Furthermore, the two groups of conductive and magnetic conductive materials are connected with the high-frequency low-resistance magnetic conductive material X through the high-frequency low-resistance conductive material.

Further, the high-frequency low-resistance circuit comprises a copper foil and a Litz wire made of a plurality of strands of enameled wires;

the Litz wire is realized in a parallel, twisted, coaxial, overlapping and mixed weaving mode, and the radius d of an enameled wire in the thickness H, Litz line of the copper foil is smaller than or equal to the thickness h of a skin effect layer formed on the surface of a wireless charging high-frequency alternating current frequency during wireless charging.

The utility model discloses an useful part: by applying the utility model, 1) the card sleeve device can relay the wireless charging energy to realize the wireless charging of the intelligent terminal; 2) the user can with the electronic card peg graft temporarily extremely in the draw-in groove structure, follow intelligent terminal and conveniently carry together, when needs exclusive use electronic card, only need release the card the draw-in groove structure can realize the separation of electronic card and cutting ferrule device, and because the electronic card position is in between two shielding baffle, do not disturb, do not harm, do not influence this electronic card when carrying out wireless charging to intelligent terminal.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

fig. 2 is a side view of the internal structure of the first embodiment of the present invention;

fig. 3 is an exploded view of the internal structure of a second embodiment of the present invention;

fig. 4 is a side view of the internal structure of a second embodiment of the present invention;

fig. 5 is a side view of the internal structure of a third embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.

As shown in fig. 1, it is the utility model discloses the overall structure schematic diagram of the first embodiment, this embodiment provides a cutting ferrule device with relay wireless charging, cutting ferrule device is applied to on the intelligent terminal that has the wireless function of charging to cooperate the work with outside wireless charging equipment, wireless charging equipment for this field conventional, can carry out wireless device that charges to intelligent terminal can, do not specifically limit here. The intelligent terminal comprises but is not limited to digital products such as a mobile phone with a wireless charging function, an intelligent tablet and the like;

the card sleeve device comprises a first panel 1, a second panel 2 and a card slot structure 3, wherein the first panel 1 and the second panel 2 are arranged in parallel, a gap distance exists between the first panel 1 and the second panel 2, and the card slot structure 3 capable of containing electronic cards is formed;

in other embodiments, it can also be understood that the first panel 1 and the second panel 2 are of an integral structure, and the peripheral side of one side is recessed inwards to form a slot structure 3. The electronic card is any card structure with an electronic storage function, such as a credit card, a bank card and the like.

The first panel 1 and the intelligent terminal back plate are fixedly arranged with each other, and the fixing arrangement mode includes but is not limited to fixing modes such as bonding and the like;

as shown in fig. 2, the ferrule device further includes a relay coil assembly, where the relay coil assembly includes a relay receiving coil 4 and a relay transmitting coil 5, and specifically, the relay transmitting coil 5 is disposed in the first panel 1; a relay receiving coil 4 is arranged in the second panel 2, the relay receiving coil 4 and the relay transmitting coil 5 are electrically connected in series, and specifically, the relay receiving coil 4 is communicated with the relay transmitting coil 5 through a first high-frequency low-resistance circuit 6;

the relay transmitting coil 5 and the relay receiving coil 4 are respectively arranged in the first panel 1 and the second panel 2 in parallel, so that the electronic card is accommodated in the card slot structure 3 and cannot directly pass through the magnetic induction line to be affected by electromagnetism.

The working process is as follows: the electronic card can be accommodated in the card slot structure 3 in the wireless charging process, when the card sleeve device receives the transmitting energy of external wireless charging equipment, the relay receiving coil 4 receives the alternating current of the external transmitting coil, the relay receiving coil 4 transmits the current to the relay transmitting coil 5 through a high-frequency low-resistance conductor circuit, the relay transmitting coil 5 continuously carries out wireless charging on the intelligent terminal, the electronic card cannot directly penetrate through a magnetic induction line to be influenced by electromagnetism, the magnetism of the electronic card is ensured, and the whole card sleeve device forms a wireless relay charging circuit for wirelessly charging 'alternating magnetic field generated by a wireless charging transmitter coil-alternating magnetic field of the relay receiving coil 4-alternating magnetic field of the relay transmitting coil 5-alternating current of a wireless charging receiver'.

As shown in fig. 3 and 4, in the second embodiment of the present invention, the relay coil assembly further includes a shielding partition 7 for suppressing the alternating magnetic field, the relay transmitting coil 5 is provided with the shielding partition 7 opposite to one side of the back plate of the intelligent terminal, the relay receiving coil 4 is provided with the shielding partition 7 towards one side of the intelligent terminal, which is equivalent to the two side faces of the slot structure 3 are respectively provided with the shielding partition 7, so as to ensure that the electronic card is accommodated in the slot structure 3, and is located between the two shielding partitions 7, so that the wireless electromagnetic interference influence is not received, the production process flow is more satisfied, and the production can be performed rapidly in a large batch.

As shown in fig. 5, in the third embodiment of the present invention, the third embodiment is the same as most of the above embodiments, except that in the present embodiment, the shielding partition 7 includes but is not limited to a conductor material such as copper sheet, aluminum sheet, iron sheet, steel sheet, etc.;

the area A of the outer contour enclosure of the conductor material projected on a plane perpendicular to the axis of the helical coil of the coil group is not less than 1/5 of the area B of the outer contour enclosure of the coil group projected on the same plane.

Further, the two groups of conductor materials are electrically connected through a second high-frequency low-resistance circuit 8 or a conducting wire, and the EMC is reduced.

In a fourth embodiment of the present invention, the fourth embodiment is the same as most of the above, except that the shielding partition 7 includes but is not limited to a conductor material of a multi-layer combination of steel sheet, iron sheet, copper and iron;

the area A of the outer contour enclosure of the conductor material projected on a plane perpendicular to the axis of the helical coil of the coil group is not less than 1/5 of the area B of the outer contour enclosure of the coil group projected on the same plane.

Further, the two groups of conductive and magnetic conductive materials are connected with the high-frequency low-resistance magnetic conductive material X through the conduction of the second high-frequency low-resistance circuit 8, so as to reduce EMC and magnetic field leakage.

Further, X may have two sets of conductive and magnetically permeable materials connected to form a structure with X, and when the structure is spatially overlapped with a certain axial plane (i.e. a plane cut along an axis) of a spiral coil of a wireless charging transmitter or receiver, the overlapping may generate a closed curve. The surface equipotential body approaching to the electric field and the magnetic field is realized, or the electric field and the magnetic field in the structure formed by connecting two groups of conductive and magnetic conductive materials and the X are approaching to zero, so that the objects in the structure are further protected from being interfered.

In other embodiments, the cable for realizing the electrical connection of the two relay coils is the first high-frequency low-resistance circuit 6, the cable for realizing the electrical connection of the two relay coils is the second high-frequency low-resistance circuit 8, the first high-frequency low-resistance circuit 6 and the second high-frequency low-resistance circuit 8 can be Litz wires made of copper foils and stranded enameled wires, the Litz wires are realized in parallel, twisted, coaxial, overlapped and mixed modes, and the radius d of the enameled wire in the thickness H, Litz line of the copper foil is smaller than or equal to the thickness h of a skin effect layer formed on the surface of the wirelessly charged high-frequency alternating current frequency during wireless charging.

When the card sleeve device is applied, 1) the card sleeve device can relay wireless charging energy to realize wireless charging of the intelligent terminal;

2) the user can with the electronic card peg graft temporarily extremely in the draw-in groove structure 3, conveniently carry along with intelligent terminal, when needs exclusive use electronic card, only need release the card draw-in groove structure 3, can realize the separation of electronic card and cutting ferrule device, and because the electronic card position is in between two shielding baffle 7, do not disturb, do not harm, do not influence this electronic card when carrying out wireless charging to intelligent terminal.

For those skilled in the art, based on the teachings of the present invention, changes, modifications, substitutions and alterations to the embodiments will still fall within the scope of the invention.

Claims (7)

1. A card sleeve device with relay wireless charging function is matched with wireless charging equipment to realize wireless charging of an intelligent terminal, and is characterized in that the card sleeve device comprises a first panel, a second panel and a card slot structure, wherein the first panel and the second panel are arranged oppositely, and the card slot structure is formed between the first panel and the second panel;

a relay transmitting coil used for transmitting wireless charging energy to the intelligent terminal is arranged in the first panel;

the second panel is internally provided with a relay receiving coil for receiving wireless charging energy, and the relay receiving coil and the relay transmitting coil are respectively arranged on two sides of the clamping groove structure and are electrically connected through a high-frequency low-resistance circuit.

2. The card sleeve device with relay wireless charging as claimed in claim 1, characterized in that said card sleeve device further comprises at least one shielding barrier suppressing alternating magnetic field;

the shielding partition plate is arranged on one side, opposite to the intelligent terminal, of the relay transmitting coil;

and a shielding partition plate is arranged on one side of the relay receiving coil facing the intelligent terminal.

3. The card sleeve device with relay wireless charging function as claimed in claim 2, wherein the relay transmitting coil and the relay receiving coil form oppositely arranged coil groups;

the area surrounded by the outer contour of the projection of the shielding partition plate on a plane vertical to the axis of the spiral coil of the coil group is A;

the area surrounded by the outer contour of the coil group projected on a plane vertical to the axis of the spiral coil is B:

the plane projected area A of the shielding partition is not less than 1/5 of the projected area B of the coil group on the same plane.

4. The card sleeve device with relay wireless charging function as claimed in claim 3, wherein the shielding partition comprises copper sheet, aluminum sheet, iron sheet, steel sheet.

5. The card sleeve device with relay wireless charging function as claimed in claim 3, wherein the shielding partition comprises a multi-layer combination of steel sheet, iron sheet and copper-iron.

6. The card sleeve device with relay wireless charging function according to claim 4 or 5, wherein the two sets of conductive and magnetically permeable materials are connected with the high-frequency low-resistance magnetically permeable material X through high-frequency low-resistance conductive.

7. The ferrule device with relay wireless charging according to any one of claims 1 to 5, wherein the high frequency low resistance circuit comprises a copper foil, Litz wire made of a multi-strand enameled wire;

the Litz wire is realized in a parallel, twisted, coaxial, overlapping and mixed weaving mode, and the radius d of an enameled wire in the thickness H, Litz line of the copper foil is smaller than or equal to the thickness h of a skin effect layer formed on the surface of a wireless charging high-frequency alternating current frequency during wireless charging.

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