CN208142884U - A kind of wireless charging mobile power source - Google Patents

Abstract

The utility model discloses a kind of wireless charging mobile power sources, including shell, pcb board and coffret, coffret is electrically connected with pcb board, and coffret is divided into charging interface and two groups of power supply interface, coffret can opposite shell movement to stretch out shell or retraction shell；Charging interface includes A type USB male joint, power supply interface includes the transfer connector that port is USB Type-C male connector and the transfer connector that port is the two-in-one male connector of MicroUSB-Lightning, when needing to charge to mobile power source or needing to power to other electronic products using mobile power source, coffret can be stretched out from shell convenient for being connected with external interface, connection is assisted without additional data line, it can be realized in the case where no data line and power to other electronic products or charge to mobile power source, it is easy to carry, it is easy to use.

Description

Wireless charging mobile power supply

Technical Field

The utility model relates to a portable power source technical field, concretely relates to wireless portable power source that charges.

Background

The portable charger integrates power supply and charging functions, and can charge digital equipment such as mobile phones, tablet computers and the like at any time and any place. Generally, a lithium battery cell (or a dry battery, which is rare) is used as an electricity storage unit, so that the use is convenient and quick.

If the utility model discloses a chinese utility model patent of bulletin number CN206727930U authorizes the bulletin text, it discloses a take wireless portable power source that charges of solar energy of WIFI function, including casing, battery, circuit function board and transmitting coil, be equipped with main control chip and wireless module of charging on the circuit function board, after the electronic product that has the wireless function of charging was close to transmitting coil, transmitting coil and the inside charging coil of electronic product mutual-induction realization of can separating the sky transmission electric energy, but for conductor connection transmission electric energy, conversion efficiency ratio is lower, and transmission rate is low.

For example, the publication number CN207339367U, the patent of the chinese utility model discloses a wireless charging mobile power supply device, which includes a detachable charger and a mobile power supply that are fastened and fixed to each other; the charger is provided with a boss, and the boss is provided with a power supply contact; the mobile power supply is provided with a groove for the insertion of the boss, a power supply thimble is arranged in the groove, and after the boss is inserted into the groove, the power supply thimble can be contacted with the power supply contact to form electric connection.

In the scheme, the charger needs to be detached from the mobile power supply firstly in the charging process of the mobile power supply, and then the lug boss is butted with the groove, so that the operation is complex; when electronic products such as mobile phones and the like are powered, the USB data line is still needed to be used for electrically connecting the charging interface of the digital product with the power supply interface of the mobile power supply, the electronic products cannot be powered under the condition of not using the USB data line, and the wireless effect is not achieved in the true sense.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wireless portable power source that charges can solve and can't carry out the problem of supplying power to the electronic product under the condition that does not use the data line now.

In order to achieve the above purpose, the technical scheme of the utility model is that:

the utility model provides a wireless portable power source that charges, includes shell, PCB board and transmission interface, and the transmission interface is connected with PCB board electricity, and the transmission interface divide into the interface that charges and supplies power interface two sets ofly, and the transmission interface can move in order to stretch out the shell or retract the shell relatively to the shell.

The utility model discloses further set up to: the transmission interface is connected with the shell in a sliding mode, an extending opening is formed in the shell, and the transmission interface can extend out of the shell or retract into the shell from the extending opening after sliding relative to the shell.

The utility model discloses further set up to: the shell is provided with a shifting port, the transmission interface is fixedly connected with a shifting block, and the shifting block is positioned on the inner side of the shifting port.

The utility model discloses further set up to: the shell is provided with a sliding groove for the sliding connection of the transmission interface, and after the transmission interface slides along the sliding groove, the transmission interface can extend out of the shell or retract into the shell from the extending opening.

The utility model discloses further set up to: the transmission interface is fixedly connected with a positioning block, and the inner wall of the sliding chute is provided with two groups of positioning grooves; after the transmission interface is retracted into the shell, the positioning block is inserted into one group of positioning grooves to limit the transmission interface to move along the direction extending out of the shell; after the transmission interface extends out of the shell, the positioning block is inserted into the other group of positioning grooves to limit the transmission interface to move along the direction of retracting into the shell.

The utility model discloses further set up to: the transmission interface is provided with a positioning groove, and the inner wall of the sliding groove is fixedly connected with two groups of positioning blocks; after the transmission interface is retracted into the shell, one group of positioning blocks are inserted into the positioning grooves to limit the transmission interface to move along the direction extending out of the shell; after the transmission interface extends out of the shell, the other group of positioning blocks are inserted into the positioning grooves to limit the transmission interface to move along the direction of retracting into the shell.

The utility model discloses further set up to: an elastic piece is arranged between the transmission interface and the inner wall of the sliding chute, and two ends of the elastic piece along the elastic deformation direction are respectively abutted against the transmission interface and the inner wall of the sliding chute; after the positioning block is aligned with the positioning groove, the elastic piece can push the positioning block to be inserted into the positioning groove.

The utility model discloses further set up to: one end of the elastic piece is fixedly connected with the transmission interface, and the other end of the elastic piece is in sliding butt joint with the inner wall of the sliding groove.

The utility model discloses further set up to: one end of the elastic piece is in sliding butt joint with the surface of the transmission interface, and the other end of the elastic piece is fixedly connected with the inner wall of the sliding groove.

The utility model discloses further set up to: the elastic piece is located between the side wall of the transmission interface and the side wall of the sliding groove.

The utility model discloses further set up to: the elastic piece is located between one side, far away from the shifting block, of the transmission interface and the inner wall of the sliding groove.

The utility model discloses further set up to: the transmission interface is provided with a containing groove on one surface far away from the shifting block, one end of the elastic piece is inserted in the containing groove and is abutted against the bottom surface of the containing groove, and the other end of the elastic piece is abutted against the inner wall of the sliding groove in a sliding manner.

The utility model discloses further set up to: the shifting block is of a hollow structure, and the accommodating groove is communicated with the inner cavity of the shifting block.

The utility model discloses further set up to: two groups of first limiting surfaces are arranged on the inner wall of the poking opening, and the poking opening is positioned between the two groups of first limiting surfaces; after the transmission interface retracts into the shell, the shifting block abuts against one group of first limiting surfaces to limit the transmission interface to move towards the direction of retracting into the shell; after the transmission interface extends out of the shell, the shifting block is abutted against the other group of first limiting surfaces so as to limit the transmission interface to move towards the direction extending out of the shell.

The utility model discloses further set up to: the transmission interface is fixedly connected with a limiting block, two groups of second limiting surfaces are arranged on the shell, and the limiting block is positioned between the two groups of second limiting surfaces; after the transmission interface retracts into the shell, the limiting block abuts against one group of second limiting surfaces to limit the transmission interface to move towards the direction of retracting into the shell; after the transmission interface extends out of the shell, the limiting block is abutted against the other group of second limiting surfaces so as to limit the transmission interface to move towards the direction of extending out of the shell.

The utility model discloses further set up to: the transmission interface is electrically connected with the PCB through a lead.

The utility model discloses further set up to: and the transmission interface is in contact sliding type electric connection with the PCB.

The utility model discloses further set up to: the transmission interface is fixedly and electrically connected with a contact piece, the PCB is fixedly and electrically connected with a contact, and the contact piece are always kept in sliding abutting connection in the movement process of the transmission interface.

The utility model discloses further set up to: and the port of the charging interface is an A-type USB male connector.

The utility model discloses further set up to: the port of the charging interface is a USB Type-C male connector.

The utility model discloses further set up to: the transmission interface is rotatably connected with the shell, a hidden cavity is arranged on the shell, and the transmission interface and the shell can extend out of the hidden cavity or retract into the hidden cavity after rotating relatively.

The utility model discloses further set up to: the wireless mobile power supply that charges still includes the female head of micro USB, the female head of micro USB with shell looks fixed connection and with PCB board electricity is connected.

The utility model discloses further set up to: the wireless mobile power supply that charges still includes the female head of MiniUSB, the female head of MiniUSB with shell looks fixed connection and with PCB board electricity is connected.

The utility model discloses further set up to: wireless portable power source that charges still includes the female head of USBType-C, the female head of USBType-C with shell looks fixed connection and with PCB board electricity is connected.

The utility model discloses further set up to: the power supply interface comprises a transmission connector with a port being a USB Type-C male connector and/or a transmission connector with a port being a MicroUSB male connector and/or a transmission connector with a port being a MiniUSB male connector and/or a transmission connector with a port being a Lightning male connector and/or a transmission connector with a port being a MicroUSB-Lightning two-in-one male connector.

The utility model discloses further set up to: the wireless charging mobile power supply further comprises an A-type USB female head, and the A-type USB female head is fixedly connected with the shell and electrically connected with the PCB.

The utility model discloses further set up to: the charging interface and the power supply interface are respectively positioned on two opposite end faces of the shell.

The utility model discloses further set up to: the shell comprises a shell body and a shield, the shield is connected with the shell, and the transmission interface can extend out of the shield or retract into the shield after the shield moves relative to the shell.

The utility model discloses further set up to: the shield is connected with the shell body in a sliding way; the transmission interface is fixedly connected with the shell body, and the transmission interface can be retracted into the cover body or extended out of the cover body after the protective cover slides relative to the shell body.

The utility model discloses further set up to: the shield is rotatably connected with the shell body; the transmission interface is fixedly connected with the shell body, and the transmission interface can be retracted into the cover body or extended out of the cover body after the protective cover is turned over relative to the shell body.

The utility model discloses further set up to: the protective cover is detachably and fixedly connected with the shell body; the transmission interface is fixedly connected with the shell body and is positioned on the inner side of the cover body.

The utility model has the advantages of as follows:

when need charge or need use the portable power source to supply power to other electronic product at portable power source, can stretch out transmission interface from the shell and be convenient for be connected with external interface, and do not need extra data line auxiliary connection, can realize charging portable power source, convenient to use to other electronic product power supplies or to portable power source under the condition that does not have the data line.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic view showing the internal structure of the casing in example 1;

fig. 3 is a schematic diagram showing a power supply interface end transmission interface structure in embodiment 1;

FIG. 4 is a schematic view showing a structure of a chute in embodiment 1;

FIG. 5 is a schematic view showing a structure of a positioning groove in embodiment 1;

FIG. 6 is a schematic view showing the structure of the anchor block in embodiment 1;

FIG. 7 is a schematic view showing the structure of the elastic member in example 1;

fig. 8 is a schematic view showing a structure of the accommodating groove in embodiment 1;

fig. 9 is a schematic view showing the structure of the first stopper surface and the second stopper surface in embodiment 1;

FIG. 10 is a schematic view showing a structure of a lead wire in example 1;

FIG. 11 is a schematic diagram showing a MicroUSB-Lightning two-in-one male plug structure in embodiment 1;

FIG. 12 is a schematic view showing the structure of the elastic member in example 2;

FIG. 13 is a schematic view showing a structure of a positioning groove and a positioning block in embodiment 3;

fig. 14 is a schematic view showing a contact piece and contact point structure in embodiment 4;

FIG. 15 is a schematic view showing a structure of a female USB connector according to embodiment 5;

FIG. 16 is a schematic view showing a USB Type-C female connector structure according to embodiment 5;

fig. 17 is a schematic view showing a connection structure between the elastic member and the inner wall of the chute and the transmission interface in embodiment 6;

FIG. 18 is a schematic view showing a hidden chamber structure in example 7;

FIG. 19 is a schematic view showing a state where the transmission interface is extended out of the hidden slot in embodiment 7;

FIG. 20 is a schematic view showing the structure of the shield and the housing body in example 8;

FIG. 21 is a schematic view showing the shield of embodiment 8 rotated to expose the transfer port;

FIG. 22 is a schematic view showing the structure of the shield and the housing body in example 9;

FIG. 23 is a schematic view showing the shield of embodiment 9 after sliding to expose the transmission port;

fig. 24 is a schematic view showing the state where the embodying shield of embodiment 10 is detached from the housing body.

Wherein,

1. a housing; 11. a box body; 12. a box cover; 13. an extension opening; 14. poking the mouth; 15. a first limiting surface; 16. a second limiting surface; 17. a chute; 18. positioning a groove; 19. a hidden cavity; 101. a housing body; 102. a shield;

2. a battery;

3. a PCB board;

4. a transmission interface; 41. a charging interface; 411. a type a USB male; 412. USB Type-C male; 413. two-in-one male head of MicroUSB-Lightning; 42. a power supply interface; 43. shifting blocks; 44. Positioning blocks; 45. a containing groove; 46. a limiting block; 47. a contact; 48. a contact piece;

5. an elastic member;

6. a type a USB female;

7. USB Type-C female head;

8. and (4) conducting wires.

Detailed Description

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Example 1

The utility model provides a wireless portable power source that charges, synthesizes fig. 1 and fig. 2, includes shell 1, battery 2, PCB board 3 and transmission interface 4, and shell 1 includes mutual fixed connection's box body 11 and lid 12, and battery 2 fixed mounting is inside box body 11, and PCB board 3 is located between battery 2 and lid 12, and transmission interface 4 is connected with PCB board 3 mutually, and transmission interface 4 can stretch out shell 1 or retract shell 1.

With reference to fig. 2 and 3, the transmission interface 4 is divided into two groups, namely a charging interface 41 and a power supply interface 42, the transmission interface 4 is slidably connected to the box cover 12, and preferably, the charging interface 41 and the power supply interface 42 are respectively located at two ends of the box cover 12, but not limited to be respectively located at two ends of the box cover 12, and may also be located on the same side surface, or may be located on adjacent side surfaces.

Referring to fig. 4, the box cover 12 is provided with an extension opening 13, and the transmission interface 4 can extend out of the box cover 12 from the extension opening 13 or retract into the box cover 12 after sliding relative to the box cover 12. The box cover 12 is provided with a poking opening 14, the transmission interface 4 is fixedly connected with a poking block 43, and the poking block 43 is positioned on the inner side of the poking opening 14, so that the poking block 43 can be conveniently poked by hands to enable the transmission interface 4 to extend out of or retract into the extending opening 13. The box cover 12 is provided with a sliding groove 17 for the sliding connection of the transmission interface 4, and after the transmission interface 4 slides along the sliding groove 17, the transmission interface 4 can extend out of the shell 1 or retract into the shell 1 from the extension opening 13.

As shown in fig. 4, the transmission interface 4 is fixedly connected with a positioning block 44, and with reference to fig. 5, two groups of positioning grooves 18 are formed on the inner wall of the sliding groove 17; with reference to fig. 6, after the transmission interface 4 is retracted into the housing 1, the positioning block 44 is inserted into one of the positioning slots 18 to limit the movement of the transmission interface 4 in the direction extending out of the housing 1; after the transfer port 4 is extended out of the housing 1, the positioning block 44 is inserted into another set of positioning grooves 18 to limit the movement of the transfer port 4 in the direction of retracting into the housing 1.

As shown in fig. 7, an elastic member 5 is disposed between the transmission interface 4 and the inner wall of the sliding slot 17, the elastic member 5 is preferably a spring, and the elastic member 5 is located between a surface of the transmission interface 4 away from the shifting block 43 and the inner wall of the sliding slot 17. Two ends of the elastic piece 5 along the elastic deformation direction are respectively abutted with the transmission interface 4 and the inner wall of the sliding groove 17; after the positioning block 44 is aligned with the positioning slot 18, the elastic element 5 can push the positioning block 44 to be inserted into the positioning slot 18.

One end of the elastic element 5 is fixedly connected with the transmission interface 4, and the other end is in sliding butt joint with the inner wall of the sliding groove 17. Referring to fig. 8, a receiving groove 45 is formed on a surface of the transmission interface 4 away from the shifting block 43, one end of the elastic element 5 is inserted into the receiving groove 45 and abuts against a bottom surface of the receiving groove 45, and the other end of the elastic element slidably abuts against an inner wall of the sliding groove 17. The shifting block 43 is a hollow structure, and the accommodating groove 45 is communicated with the inner cavity of the shifting block 43.

As shown in fig. 9, two sets of first limiting surfaces 15 are disposed on the inner wall of the dial opening 14, and the dial opening 14 is located between the two sets of first limiting surfaces 15; after the transmission interface 4 retracts into the housing 1, the shifting block 43 abuts against one group of first limiting surfaces 15 to limit the transmission interface 4 to move towards the direction of retracting into the housing 1; after the transmission interface 4 extends out of the housing 1, the shifting block 43 abuts against another set of first limiting surfaces 15 to limit the transmission interface 4 from moving towards the direction extending out of the housing 1

The transmission interface 4 is fixedly connected with a limiting block 46, two groups of second limiting surfaces 16 are arranged on the shell 1, and the limiting block 46 is positioned between the two groups of second limiting surfaces 16; after the transmission interface 4 retracts into the housing 1, the limiting block 46 abuts against one group of second limiting surfaces 16 to limit the transmission interface 4 to move towards the direction of retracting into the housing 1; after the transmission interface 4 extends out of the housing 1, the limiting block 46 abuts against another set of second limiting surfaces 16 to limit the transmission interface 4 from moving toward the direction of extending out of the housing 1.

As shown in fig. 10, the transmission interface 4 is electrically connected to the PCB 3 through the wires 8, and during the sliding process of the transmission connector, the wires 8 can be bent and deformed to maintain the electrical connection between the transmission connector and the PCB 3.

The port of the charging interface 41 is an a-Type USB male connector 411, and the power supply interface 42 includes a transmission connector with a USB Type-C male connector 412 and a transmission connector with a Lightning male connector. Preferably, a transmission connector with a port of the micro usb-Lightning two-in-one male head 413 is adopted, the transmission connector structure of the micro usb-Lightning two-in-one male head 413 is divided into an upper layer, a middle layer and a lower layer as shown in fig. 11, and gold fingers (conductors) are fixedly connected to surfaces of the upper layer and the lower layer (in the direction of the view in fig. 11) which are far away from each other, and are used for connecting the Lightning female head; one surface of the middle layer is fixedly connected with a golden finger which is used for being connected with a micro USB female head, and a transmission connector (not shown in the figure) with a MiniUSB male head port can also be used.

Example 2

A wireless charging portable power source, which is different from embodiment 1 in that, as shown in fig. 12, the elastic member 5 is a spring, and the elastic member 5 has a plurality of elastic pieces which are distributed between the transmission interface 4 and the inner wall of the sliding groove 17.

Example 3

A wireless charging mobile power supply, as shown in fig. 13, the positioning slot 18 is disposed on the transmission interface 4, the positioning block 44 is fixedly connected to an inner wall of the sliding slot 17, and the positioning block 44 is located on a side surface of the sliding slot 17, the elastic element 5 is an elastic sheet, the elastic element 5 is located between the transmission interface 4 and a side wall of the sliding slot 17 and located on a side of the output interface far from the positioning block 44, the shifting block 43 is shifted in a direction (lateral direction) close to the elastic element 5, so that the transmission interface 4 can extrude the elastic element 5, the positioning block 44 is gradually pulled out of the positioning slot 18, the transmission interface 4 can be slid after the positioning block 44 is pulled out of the positioning slot 18, the shifting block 43 is released after the positioning block 44 is slid to be aligned with the positioning slot 18, and the elastic element 5 gradually.

Example 4

A wireless charging mobile power supply is different from the embodiment 1 in that, as shown in fig. 14, a transmission interface 4 is in contact sliding type electric connection with a PCB 3, a contact 47 is fixedly and electrically connected to the PCB 3, a contact 48 is fixedly and electrically connected to the transmission interface 4, and the contact 47 and the contact 48 are always in sliding abutting connection in the movement process of the transmission interface 4.

Example 5

A wireless charging portable power source is different from embodiment 1 in that, as shown in fig. 15,

the wireless mobile power supply that charges still includes the female head 6 of A type USB, and the female head 6 of A type USB is connected with shell 1 looks fixed connection and is connected with PCB board 3 looks electricity.

As shown in fig. 16, the wireless mobile power supply that charges still includes USB Type-C female head 7, and USB Type-C female head 7 is connected with shell 1 looks fixed connection and is connected with PCB board 3 looks electricity.

The embodiment is not limited to further comprising an A-Type USB female head 6 and a USB Type-C female head 7, and can also be one of the A-Type USB female head 6 and the USB Type-C female head 7;

the micro USB socket can also comprise a micro USB female head (not shown in the figure), wherein the micro USB female head is fixedly connected with the shell 1 and is electrically connected with the PCB 3;

the PCB can also comprise a MiniUSB female head (not shown in the figure), wherein the MiniUSB female head is fixedly connected with the shell 1 and is electrically connected with the PCB 3;

any one of the listed linkers or any combination of several thereof may be used.

Example 6

A wireless charging portable power source, which is different from embodiment 1 in that, as shown in fig. 17, one end of an elastic member 5 is in sliding contact with the surface of a transmission interface 4, the other end is fixedly connected with the inner wall of a sliding slot 17, and the elastic member 5 is located between the side wall of the transmission interface 4 and the side wall of the sliding slot 17.

Example 7

A wireless charging mobile power supply is different from the embodiment 1 in that, referring to fig. 18 and fig. 19, a transmission interface 4 is rotatably connected with a housing 1, a hidden cavity 19 is arranged on the housing 1, and the transmission interface 4 and the housing 1 can extend out of the hidden cavity 19 or retract into the hidden cavity 19 after rotating relatively.

Example 8

A wireless charging portable power source, which is different from the embodiment 1 in that, in combination with fig. 20 and 21, a housing 1 includes a housing body 101 and a shield 102, and the shield 102 is rotatably connected with the housing body 101; the transmission interface 4 is fixedly connected with the casing body 101, and after the protective cover 102 is turned over relative to the casing body 101, the transmission interface 4 can be retracted into the cover body or extended out of the cover body.

Example 9

A wireless charging portable power source, which is different from the embodiment 8 in that, in combination with fig. 22 and 23, a shield 102 is slidably connected to a housing body 101; the transmission interface 4 is fixedly connected with the casing body 101, and after the protective cover 102 slides relative to the casing body 101, the transmission interface 4 can be retracted into the cover body or extended out of the cover body.

Example 10

A wireless charging portable power source, which is different from embodiment 8 in that, as shown in fig. 24, a shield 102 is detachably and fixedly connected with a housing body 101; the transmission interface 4 is fixedly connected with the casing body 101, the transmission interface 4 is located inside the cover, and preferably, the shield 102 is inserted into the casing body 101.

Example 11

A wireless charging portable power source, which is different from the embodiment 1 in that the port of the charging interface 41 is a usb type-C male connector 412.

The utility model discloses but the arbitrary combination of the joint of the different grade Type that lists in (like USB Type-C male joint 412, MiniUSB female joint 6, the female joint of micro USB, USB Type-C female joint 7, the female joint of A Type USB 6, the two public heads 413 of little USB-Lightning, Lightning public head etc.) uses, differs in this specification, as long as satisfy charge interface 41 and power supply interface 42 all have at least one joint can, and do not confine to only adopt wherein certain joint or only adopt certain combination wherein.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (31)

1. The utility model provides a wireless portable power source that charges, includes shell (1), PCB board (3) and transmission interface (4), transmission interface (4) are connected with PCB board (3) looks electricity, and transmission interface (4) divide into charge interface (41) and power supply interface (42) two sets ofly, characterized by: the transmission interface (4) can move relative to the shell (1) to extend out of the shell (1) or retract into the shell (1).

2. The wireless charging mobile power supply of claim 1, wherein: the transmission interface (4) is connected with the shell (1) in a sliding mode, an extending opening (13) is formed in the shell (1), and the transmission interface (4) can extend out of the shell (1) or retract into the shell (1) from the extending opening (13) after sliding relative to the shell (1).

3. The wireless charging mobile power supply of claim 2, wherein: the shell (1) is provided with a poking opening (14), the transmission interface (4) is fixedly connected with a poking block (43), and the poking block (43) is located on the inner side of the poking opening (14).

4. The wireless charging mobile power supply of claim 3, wherein: the shell (1) is provided with a sliding groove (17) for the transmission interface (4) to be in sliding connection, and after the transmission interface (4) slides along the sliding groove (17), the transmission interface (4) can extend out of the shell (1) or retract into the shell (1) from the extending opening (13).

5. The wireless charging mobile power supply of claim 4, wherein: a positioning block (44) is fixedly connected to the transmission interface (4), and two groups of positioning grooves (18) are formed in the inner wall of the sliding groove (17); after the transmission interface (4) is retracted into the shell (1), a positioning block (44) is inserted into one group of positioning grooves (18) to limit the transmission interface (4) to move along the direction extending out of the shell (1); after the transmission interface (4) extends out of the shell (1), the positioning block (44) is inserted into the other group of positioning grooves (18) to limit the movement of the transmission interface (4) along the direction of retracting into the shell (1).

6. The wireless charging mobile power supply of claim 4, wherein: a positioning groove (18) is formed in the transmission interface (4), and two groups of positioning blocks (44) are fixedly connected to the inner wall of the sliding groove (17); after the transmission interface (4) is retracted into the shell (1), one set of positioning blocks (44) is inserted into the positioning grooves (18) to limit the transmission interface (4) to move along the direction extending out of the shell (1); after the transmission interface (4) extends out of the shell (1), another group of positioning blocks (44) are inserted into the positioning grooves (18) to limit the transmission interface (4) to move along the direction of retracting into the shell (1).

7. The wireless charging mobile power supply according to claim 5 or 6, wherein: an elastic piece (5) is arranged between the transmission interface (4) and the inner wall of the sliding groove (17), and two ends of the elastic piece (5) along the elastic deformation direction are respectively abutted against the transmission interface (4) and the inner wall of the sliding groove (17); after the positioning block (44) is aligned with the positioning groove (18), the elastic piece (5) can push the positioning block (44) to be inserted into the positioning groove (18).

8. The wireless charging mobile power supply of claim 7, wherein: one end of the elastic piece (5) is fixedly connected with the transmission interface (4), and the other end of the elastic piece is in sliding butt joint with the inner wall of the sliding groove (17).

9. The wireless charging mobile power supply of claim 7, wherein: one end of the elastic piece (5) is in sliding butt joint with the surface of the transmission interface (4), and the other end of the elastic piece is fixedly connected with the inner wall of the sliding groove (17).

10. The wireless charging mobile power supply of claim 7, wherein: the elastic piece (5) is positioned between the side wall of the transmission interface (4) and the side wall of the sliding groove (17).

11. The wireless charging mobile power supply of claim 7, wherein: the elastic piece (5) is located between one surface, far away from the shifting block (43), of the transmission interface (4) and the inner wall of the sliding groove (17).

12. The wireless charging mobile power supply of claim 11, wherein: one surface of the transmission interface (4) far away from the shifting block (43) is provided with a containing groove (45), one end of the elastic piece (5) is inserted in the containing groove (45) and is abutted against the bottom surface of the containing groove (45), and the other end of the elastic piece is abutted against the inner wall of the sliding groove (17) in a sliding manner.

13. The wireless charging mobile power supply of claim 12, wherein: the shifting block (43) is of a hollow structure, and the accommodating groove (45) is communicated with the inner cavity of the shifting block (43).

14. The wireless charging mobile power supply of claim 3, wherein: two groups of first limiting surfaces (15) are arranged on the inner wall of the poking opening (14), and the poking opening (14) is positioned between the two groups of first limiting surfaces (15); after the transmission interface (4) retracts into the shell (1), the shifting block (43) is abutted with one group of first limiting surfaces (15) to limit the transmission interface (4) to move towards the direction of retracting into the shell (1); after the transmission interface (4) extends out of the shell (1), the shifting block (43) is abutted with the other group of first limiting surfaces (15) so as to limit the transmission interface (4) to move towards the direction extending out of the shell (1).

15. The wireless charging mobile power supply of claim 2, wherein: the transmission interface (4) is fixedly connected with a limiting block (46), two groups of second limiting surfaces (16) are arranged on the shell (1), and the limiting block (46) is positioned between the two groups of second limiting surfaces (16); after the transmission interface (4) retracts into the shell (1), the limiting block (46) is abutted with one group of second limiting surfaces (16) to limit the transmission interface (4) to move towards the direction of retracting into the shell (1); after the transmission interface (4) extends out of the shell (1), the limiting block (46) is abutted against the other group of second limiting surfaces (16) so as to limit the transmission interface (4) to move towards the direction extending out of the shell (1).

16. The wireless charging mobile power supply of claim 2, wherein: the transmission interface (4) is electrically connected with the PCB (3) through a lead (8).

17. The wireless charging mobile power supply of claim 2, wherein: the transmission interface (4) is in contact sliding type electric connection with the PCB (3).

18. The wireless charging mobile power supply of claim 17, wherein: the transmission interface (4) is fixed with electricity and is connected with contact (48), the PCB board (3) is fixed with electricity and is connected with contact (47), and in the motion process of the transmission interface (4), the contact (47) and the contact (48) always keep mutually sliding and abutting.

19. The wireless charging mobile power supply of claim 1, wherein: the port of the charging interface (41) is an A-Type USB male connector (411) and/or a USB Type-C male connector (412).

20. The wireless charging mobile power supply of claim 1, wherein: the port of the charging interface (41) is a USB Type-C male connector (412).

21. The wireless charging mobile power supply of claim 1, wherein: the transmission interface (4) is rotatably connected with the shell (1), a hidden cavity (19) is arranged on the shell (1), and the transmission interface (4) can extend out of the hidden cavity (19) or retract into the hidden cavity (19) after rotating relative to the shell (1).

22. The wireless charging mobile power supply of claim 1, wherein: the wireless mobile power supply that charges still includes the female head of micro USB, the female head of micro USB with shell (1) looks fixed connection and with PCB board (3) looks electricity is connected.

23. The wireless charging mobile power supply of claim 1, wherein: the wireless charging mobile power supply further comprises a MiniUSB female head, and the MiniUSB female head is fixedly connected with the shell (1) and electrically connected with the PCB (3).

24. The wireless charging mobile power supply of claim 1, wherein: wireless portable power source that charges still includes USB Type-C female head (7), USB Type-C female head (7) with shell (1) looks fixed connection and with PCB board (3) looks electricity is connected.

25. The wireless charging mobile power supply of claim 1, wherein: the power supply interface (42) comprises a transmission connector with a port of a USB Type-C male connector (412), a transmission connector with a port of a MicroUSB male connector, a transmission connector with a port of a MiniUSB male connector, a transmission connector with a port of a Lightning male connector and/or a transmission connector with a port of a MicroUSB-Lightning two-in-one male connector (413).

26. The wireless charging mobile power supply of claim 1, wherein: the wireless mobile power supply that charges still includes female head (6) of A type USB, female head (6) of A type USB with shell (1) looks fixed connection and with PCB board (3) looks electricity is connected.

27. The wireless charging mobile power supply of claim 1, wherein: the charging interface (41) and the power supply interface (42) are respectively located on two opposite end faces of the housing (1).

28. The wireless charging mobile power supply of claim 1, wherein: the shell (1) comprises a shell body (101) and a shield (102), the shield (102) is connected with the shell (1), and the transmission interface (4) can extend out of the shield (102) or retract into the shield (102) after the shield (102) moves relative to the shell (1).

29. The wireless charging mobile power supply of claim 28, wherein: the shield (102) is connected with the shell body (101) in a sliding way; the transmission interface (4) is fixedly connected with the shell body (101), and after the protective cover (102) slides relative to the shell body (101), the transmission interface (4) can be retracted into the cover body or extended out of the cover body.

30. The wireless charging mobile power supply of claim 28, wherein: the shield (102) is rotatably connected with the shell body (101); the transmission interface (4) is fixedly connected with the shell body (101), and after the protective cover (102) is turned over relative to the shell body (101), the transmission interface (4) can be retracted into the cover body or extended out of the cover body.

31. The wireless charging mobile power supply of claim 28, wherein: the shield (102) is detachably and fixedly connected with the shell body (101); the transmission interface (4) is fixedly connected with the shell body (101), and the transmission interface (4) is positioned on the inner side of the cover body.