CN216564599U

CN216564599U - Charging patch with overload protection function

Info

Publication number: CN216564599U
Application number: CN202123403718.XU
Authority: CN
Inventors: 武雨萌; 刘思媛; 刘綦
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-17
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a charging patch with an overload protection function, which belongs to the field of mobile power supplies and comprises an upper shell and a lower shell, wherein the upper shell is arranged on the top surface of the lower shell, a traceless adhesive tape is bonded on the top surface of the upper shell, the top surface of the upper shell is in an upward arc structure close to two sides, a paper lithium battery and a PCB (printed Circuit Board) are arranged in the lower shell, the paper lithium battery is electrically connected with a control circuit of the PCB, the control circuit comprises an MCU (microprogrammed control Unit), an IC (Integrated Circuit) module, an LED (light-emitting diode) display screen, a type-c interface, a usb (user bus) interface and an overload protector, the weight and the volume of the mobile power supply are reduced by adopting a paper lithium battery mode, and the overload protector is arranged in the upper shell to protect the paper lithium battery.

Description

Charging patch with overload protection function

Technical Field

The utility model relates to the technical field of mobile power supplies, in particular to a charging patch with an overload protection function.

Background

A portable power source and a mobile charger (charger) are portable chargers that can be carried about by a person, can store electric energy by themselves, mainly charge consumer electronics (such as wireless phones and notebook computers) such as handheld mobile devices, and are particularly applied to occasions without external power supply.

However, the conventional mobile power supply has a large volume due to the need of storing a sufficient amount of electricity, and when the mobile phone is charged, the inconvenience is brought in the carrying and charging processes due to the large volume and heavy weight, and the lithium battery of the mobile power supply is damaged and the service life is reduced in the charging process of different devices due to the lack of an overload protection function in the charging process of the mobile phone.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a charging patch with an overload protection function, which reduces the weight and the volume of a mobile power supply by adopting a paper lithium battery mode, and is internally provided with an overload protector to protect the paper lithium battery so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a charging patch with an overload protection function comprises an upper shell and a lower shell, wherein the upper shell is installed on the top surface of the lower shell, a traceless adhesive tape is bonded on the top surface of the upper shell, the top surface of the upper shell is close to two sides and is of an upward arc-shaped structure, a paper lithium battery and a PCB are installed inside the lower shell, the paper lithium battery is electrically connected with a control circuit of the PCB, the control circuit comprises an MCU, an IC module, an LED display screen, a type-c interface, a usb interface and an overload protector, a control end of the overload protector is electrically connected with the MCU, a detection end of the overload protector is electrically connected with the paper lithium battery, a control end of the MCU is electrically connected with the IC module, the paper lithium battery is electrically connected with the IC module, a signal output end of the MCU is electrically connected with the LED display screen, a mounting groove is formed in one end of the top surface of the upper shell, the LED display screen is installed in the mounting groove in a plug-in mode, the inside top surface integrated into one piece of inferior valve has the baffle, the PCB board passes through the baffle to be installed in the cavity of the constitution of epitheca and inferior valve, type-c interface and usb interface all with IC module electric connection, type-c interface and usb interface are installed respectively on the casing one end lateral wall that epitheca and inferior valve are constituteed.

Preferably, the periphery of the bottom surface of the upper shell is integrally formed with a clamping plate, the periphery of the top surface of the lower shell is integrally formed with a clamping groove, and the clamping plate is clamped and connected with the inside of the clamping groove.

Preferably, the paper lithium battery includes carbon pole layer, positive terminal, anodal layer, isolation layer, negative pole terminal, negative pole layer and lithium utmost point layer, carbon pole layer, positive terminal, anodal layer, isolation layer, negative pole terminal, negative pole layer and lithium utmost point layer encapsulate fixedly through polystyrene plastics.

Preferably, the bottom surface of the carbon pole layer is provided with an anode layer, one side of the anode layer is fixedly connected with one end of an anode terminal, the other end of the anode terminal is electrically connected with an anode pin of the IC module, an isolation layer is arranged between the anode layer and the cathode layer, and the isolation layer is of a cellulose nanocrystal structure.

Preferably, one end of the negative electrode layer is fixedly connected with one end of a negative terminal, the negative terminal is electrically connected with a negative pin on the IC module, and a lithium electrode layer is disposed on the bottom surface of the negative electrode layer.

Preferably, the two sides of the top surface of the interior of the lower shell are fixedly connected with limiting plates respectively, the limiting plates are arranged on the top surface of the interior of the lower shell at equal intervals, and the limiting plates are of an upward arc-shaped structure.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a charging patch with an overload protection function, which is characterized in that a traditional lithium battery is replaced by an advanced paper lithium battery, and the volume and the weight of a mobile power supply can be effectively reduced due to the special structure of the paper lithium battery, so that the convenience of a user can be greatly improved when the user charges a mobile phone through a mobile power supply, and the portability of the user can also be improved when the user carries the mobile phone.

Through having increased overload protection ware in the control circuit of paper lithium cell, detect the processing through overload protection ware in to paper lithium cell power supply process to when the paper lithium cell takes place to transship, when under-voltage, excessive pressure, can in time carry out the outage through MCU to the paper lithium cell and handle, and then can effectively protect the paper lithium cell, in order to increase the life of paper lithium cell.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a paper lithium battery structure according to the present invention;

FIG. 3 is a schematic view of the upper and lower housing construction of the present invention;

FIG. 4 is a block diagram of the control circuitry of the present invention.

Reference numbers in the figures: 1. an upper shell; 2. a lower case; 3. a traceless adhesive tape; 4. a type-c interface; 5. a usb interface; 6. a paper lithium battery; 61. a carbon electrode layer; 62. a positive terminal; 63. a positive electrode layer; 64. an isolation layer; 65. a negative terminal; 66. a negative electrode layer; 67. a lithium electrode layer; 7. mounting grooves; 8. clamping a plate; 9. a card slot; 10. a limiting plate; 11. a separator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a charging patch with an overload protection function, which comprises an upper shell 1 and a lower shell 2, wherein a clamping plate 8 is integrally formed on the periphery of the bottom surface of the upper shell 1, a clamping groove 9 is integrally formed on the periphery of the top surface of the lower shell 2, the clamping plate 8 is connected with the inside of the clamping groove 9 in a clamping manner, a sealing ring is arranged inside the clamping groove 9, the upper shell 1 is clamped with the clamping groove 9 of the lower shell 2 through the clamping plate 8, the upper shell 1 and the lower shell 2 can be installed, and further, a PCB and a paper lithium battery 6 which are installed inside can be protected.

The epitheca 1 is installed on the top surface of inferior valve 2, and the top surface of epitheca 1 bonds and has no trace sticky tape 3, can paste epitheca 1 on the back of cell-phone shell through no trace sticky tape 3, and can not remain the trace at the cell-phone shell back after tearing yet, and the top surface of epitheca 1 is close to both sides and is the arc structure that makes progress, can laminate according to the cell-phone arc back and handle.

The internally mounted of inferior valve 2 has paper lithium cell 6 and PCB board, paper lithium cell 6 includes carbon pole layer 61, positive terminal 62, positive layer 63, the isolation layer 64, negative terminal 65, negative pole layer 66 and lithium pole layer 67, carbon pole layer 61, positive terminal 62, positive layer 63, the isolation layer 64, negative terminal 65, negative pole layer 66 and lithium pole layer 67 encapsulate fixedly through polystyrene plastics, polystyrene plastics have good water resistance, be used for to the processing of paper lithium cell 6 encapsulation, can make the inside group's of paper lithium cell 6 constitute and construct can waterproof, and polystyrene plastics have shock resistance well, be used for to the encapsulation of paper lithium cell 6, can make paper lithium cell 6 take place also can not make the inner structure take place the damage after warping.

The bottom surface of carbon pole layer 61 is provided with positive pole layer 63, one side and the positive terminal 62 one end fixed connection of positive pole layer 63, the other end of positive pole terminal 62 and the anodal pin electric connection of IC module, be provided with isolation layer 64 between positive pole layer 63 and the negative pole layer 66, the one end and the negative terminal 65 one end fixed connection of negative pole layer 66, negative terminal 65 and the negative pole pin electric connection on the IC module, the bottom surface of negative pole layer 66 is provided with lithium pole layer 67, isolation layer 64 is the cellulose nanocrystal structure, good airtight structure has, can make paper lithium cell 6's positive pole layer 63 and negative pole layer 66 can be kept apart, mutual noninterference.

The paper lithium battery 6 is electrically connected with a control circuit of the PCB, the control circuit comprises an MCU, an IC module, an LED display screen, a type-c interface 4, a usb interface 5 and an overload protector, a control end of the overload protector is electrically connected with the MCU, a detection end of the overload protector is electrically connected with the paper lithium battery 6, a control end of the MCU is electrically connected with the IC module, the paper lithium battery 6 is electrically connected with the IC module, a signal output end of the MCU is electrically connected with the LED display screen, one end of the top surface of the upper shell 1 is provided with a mounting groove 7, the LED display screen is inserted into the mounting groove 7, a baffle plate 11 is integrally formed on the top surface of the inner part of the lower shell 2, a PCB is arranged in a cavity formed by the upper shell 1 and the lower shell 2 through the baffle plate 11, the type-c interface 4 and the usb interface 5 are electrically connected with the IC module, and the type-c interface 4 and the usb interface 5 are respectively installed on the side wall of one end of the shell formed by the upper shell 1 and the lower shell 2.

The inside top surface both sides of inferior valve 2 are fixedly connected with limiting plate 10 respectively, and limiting plate 10 equidistance is arranged on the inside top surface of inferior valve 2, and limiting plate 10 is the arc structure that makes progress, through carrying out spacing processing to encapsulation back paper lithium cell 6, makes its installation go into inferior valve 2 and the inside back of epitheca 1, can not take place to rock in the inside of epitheca 1 and inferior valve 2.

During specific work, paper lithium cell 6 passes through carbon layer 61, positive terminal 62, positive pole layer 63, isolation layer 64, negative terminal 65, the structure that negative pole layer 66 and lithium layer 67 are constituteed produces electric current and voltage, then supply power respectively to the PCB board through negative terminal 65 and positive terminal 62 and handle, the one end of charging wire is connected through usb interface 5, the other end of charging wire and the interface butt joint that charges of cell-phone, it connects the back to detect the cell-phone through the IC chip in the IC module, control paper lithium cell 6 supplies power to the built-in lithium cell of cell-phone and handle, the electric quantity signal to MCU transmission signal paper lithium cell 6 simultaneously, MCU sends the signal of telecommunication that corresponds and gives the LED display screen, it is luminous to make the LED display screen correspond the number of sending out the charactron, thereby can learn the electric quantity of paper lithium cell 6.

In the charging process, voltage and electric current through overload protection ware to paper lithium cell 6 again detect and handle, when taking place overload decompression phenomenon, the transmission signal of telecommunication gives MCU, the IC chip of MCU control IC module breaks off the power supply of lithium cell, thereby can protect the processing to the lithium cell, when paper lithium cell 6's electric quantity is not enough, insert 5V power through 5 cooperation charging wires of usb interface, and carry out charging process to paper lithium cell 6 through IC module control, LED display screen shows lithium cell electric quantity simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a paster that charges with overload protection function, includes epitheca (1) and inferior valve (2), its characterized in that: the upper shell (1) is installed on the top surface of the lower shell (2), a traceless adhesive tape (3) is bonded on the top surface of the upper shell (1), the top surface of the upper shell (1) is close to two sides and is of an upward arc-shaped structure, a paper lithium battery (6) and a PCB are installed inside the lower shell (2), the paper lithium battery (6) is electrically connected with a control circuit of the PCB, the control circuit comprises an MCU, an IC module, an LED display screen, a type-c interface (4), a usb interface (5) and an overload protector, a control end of the overload protector is electrically connected with the MCU, a detection end of the overload protector is electrically connected with the paper lithium battery (6), the control end of the MCU is electrically connected with the IC module, the paper lithium battery (6) is electrically connected with the IC module, a signal output end of the MCU is electrically connected with the LED display screen, a mounting groove (7) is formed in one end of the top surface of the upper shell (1), LED display screen slot is bayonet to be installed in mounting groove (7), the inside top surface integrated into one piece of inferior valve (2) has baffle (11), the PCB board passes through baffle (11) to be installed in the cavity of the constitution of epitheca (1) and inferior valve (2), type-c interface (4) and usb interface (5) all with IC module electric connection, install respectively on the casing one end lateral wall that epitheca (1) and inferior valve (2) are constituteed type-c interface (4) and usb interface (5).

2. The charging patch with the overload protection function according to claim 1, wherein: the clamping plate is characterized in that a clamping plate (8) is integrally formed on the periphery of the bottom surface of the upper shell (1), a clamping groove (9) is integrally formed on the periphery of the top surface of the lower shell (2), and the clamping plate (8) is connected with the inside of the clamping groove (9) in a clamping mode.

3. The charging patch with the overload protection function according to claim 1, wherein: the paper lithium battery (6) comprises a carbon pole layer (61), a positive terminal (62), a positive layer (63), an isolation layer (64), a negative terminal (65), a negative layer (66) and a lithium pole layer (67), wherein the carbon pole layer (61), the positive terminal (62), the positive layer (63), the isolation layer (64), the negative terminal (65), the negative layer (66) and the lithium pole layer (67) are fixedly packaged through polystyrene plastic.

4. A charging patch with overload protection function according to claim 3, characterized in that: the bottom surface of carbon layer (61) is provided with positive pole layer (63), one side and positive terminal (62) one end fixed connection of positive pole layer (63), the other end and the anodal pin electric connection of IC module of positive terminal (62), be provided with isolation layer (64) between positive pole layer (63) and negative pole layer (66), isolation layer (64) are cellulose nanocrystal structure.

5. The charging patch with the overload protection function according to claim 4, wherein: one end of the negative electrode layer (66) is fixedly connected with one end of a negative electrode terminal (65), the negative electrode terminal (65) is electrically connected with a negative electrode pin on the IC module, and a lithium electrode layer (67) is arranged on the bottom surface of the negative electrode layer (66).

6. The charging patch with the overload protection function according to claim 1, wherein: the limiting plates (10) are fixedly connected to two sides of the inner top surface of the lower shell (2) respectively, the limiting plates (10) are arranged on the inner top surface of the lower shell (2) in an equidistant mode, and the limiting plates (10) are of an upward arc-shaped structure.