A mobile phone charger with a display screen

Abstract

The utility model discloses a mobile phone charger with display screen relates to mobile phone charger technical field, including mobile phone charger casing, be provided with the electricity plug on mobile phone charger casing, be provided with PCB board, control unit and display screen, display window, light transmission protection part, display screen control instruction input circuit on mobile phone charger casing, display screen control instruction input circuit has the non -contact type inductive button of setting on the PCB board, when charging for mobile phone, the control unit can show corresponding charging information through the display screen, when the user does not need to use the display screen display, can control the display screen breath screen through display screen control instruction input circuit, or when the display screen breath screen needs to continue the screen on, can control the display screen screen on display through display screen control instruction input circuit, and the adaptability is better, and display screen control instruction input circuit is set to the non -contact type inductive of user's point press action, and more favorably prevents the electricity leakage setting.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone charger technology, and in particular to a mobile phone charger with a display screen. Background Technology

[0002] When charging a mobile phone using a mobile phone charger, the charger is equipped with a display screen to provide users with charging information. The main control chip of the charger displays relevant data such as internal temperature, charging power, and whether the phone is fully charged through the screen. A mobile phone charger with an energy metering module, as proposed in Chinese invention application CN109617177A, can display power consumption information in real time through an LCD screen installed in the device, helping users better understand the power consumption and usage status of their mobile phone during charging.

[0003] When used at night, keeping the screen on is not conducive to users' sleep; some models are set to turn off the screen at a timer, for example, while charging, the screen will stay on for 1 minute, 3 minutes or 5 minutes and then automatically turn off. However, after the screen automatically turns off, users cannot view the charging data again, which needs improvement. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a charger with a display screen that allows the user to control the screen to turn on / off during a single charge.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mobile phone charger with a display screen, comprising a mobile phone charger housing, a power supply plug on the mobile phone charger housing, the power supply plug having an external power supply pin exposed outside the mobile phone charger housing, a PCB board inside the mobile phone charger housing, a control unit and a display screen on the PCB board, a display window corresponding to the display screen on the mobile phone charger housing, and a light-transmitting protective part corresponding to the display window, the display screen displaying through the light-transmitting protective part; the PCB board also comprises a display screen control command input circuit, the signal output terminal of the display screen control command input circuit is electrically connected to the signal terminal of the control unit, the control unit receives the screen off / screen on signal from the display screen control command input circuit, and the control terminal of the control unit is electrically connected to the signal terminal of the display screen; The display control command input circuit has a non-contact sensing button set on the PCB board. The non-contact sensing button senses the user's tapping action through the mobile phone charger casing.

[0006] A further technical solution of this utility model: The non-contact inductive button includes an inductive button, and the shell portion on the mobile phone charger housing corresponding to the inductive button is an insulating structure.

[0007] A further technical solution of this utility model: The PCB board includes a first main board, a first sub-board, and a second sub-board; The first sub-board is spliced ​​onto the first main board, and the welding surface of the first sub-board is set perpendicular to the welding surface of the first main board. The second sub-board is spliced ​​onto the first main board and the first sub-board, with the welding surface of the second sub-board perpendicular to the welding surface of the first main board.

[0008] A further technical solution of this utility model: The inside of the mobile phone charger casing is provided with at least three circuits. The first circuit is set on the first main board, the second circuit is set on the first sub-board, and the third circuit is set on the second sub-board.

[0009] A further technical solution of this utility model: the display screen and the display screen control command input circuit are included in the third part of the circuit.

[0010] A further technical solution of this utility model: the display window is located on the rear side of the mobile phone charger housing; The front end of the mobile phone charger housing has an installation port, and a front cover is connected to the front end of the mobile phone charger housing. An exposed opening is provided on the front cover, through which the external power plug is exposed outside the front cover. The welding surface of the second sub-board is opposite to the inner rear wall of the mobile phone charger housing, and the display screen is welded to the welding surface of the second sub-board; when the spliced ​​PCB board is installed into the mobile phone charger housing from the mounting port at the front end of the mobile phone charger housing, the display screen is close to the display window.

[0011] A further technical solution of this utility model: The light-transmitting protective part includes a light-transmitting protective cover connected to the rear side of the mobile phone charger housing and covering the display window.

[0012] Further technical solution of this utility model: The non-contact inductive button includes an inductive button set on the welding plate surface of the second sub-plate, and an indicator window corresponding to the inductive button is opened on the rear side of the mobile phone charger housing, and a light-transmitting protective cover extends to the closed indicator window.

[0013] A further technical solution of this utility model: the inner wall of the mobile phone charger housing is formed with a positioning guide rail, which is arranged at the front and rear, and the front end of the positioning guide rail has an insertion port corresponding to the first motherboard. The side of the positioning guide rail has a positioning groove that is set along the length of the positioning guide rail, and the groove opening extends to communicate with the insertion port.

[0014] A further technical solution of this utility model: positioning guide rails are formed on a pair of opposing inner walls of the mobile phone charger housing; The two different positioning guides on the opposite inner walls have their positioning grooves facing each other. The first motherboard is inserted into two different positioning guides on the opposite inner walls.

[0015] Compared with existing technologies, the advantages of this technical solution are as follows: When charging a mobile phone using a mobile phone charger with a display screen, the control unit can display corresponding charging information, such as charging power and whether it is fully charged, through the display screen; when the user does not need to use the display screen, the display screen can be turned off through the display screen control command input circuit; or when the display screen needs to be turned on again after it is turned off, the display screen can be turned on through the display screen control command input circuit, making it more applicable; and the display screen control command input circuit is set to perform non-contact sensing of the user's tap action, which is more conducive to leakage protection.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is an exploded view of the structure of this utility model; Figure 4 This is another exploded view of the structure of this utility model; Figure 5 This is a schematic diagram of the positioning guide rail of this utility model.

[0019] The corresponding labels in the attached diagram are explained as follows: Mobile phone charger housing-1, mounting port-101, display window-102, light-transmitting protective part-103, front cover-104, indicator window-105, positioning guide rail-106, power plug-2, control unit-3, display screen-4, display screen control command input circuit-5, inductive button-501, first main board-6, first sub-board-7, second sub-board-8, extension plug-in board-9, splicing slot-10. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 A mobile phone charger with a display screen includes a mobile phone charger housing 1, a power supply plug 2 is provided on the mobile phone charger housing 1, and the power supply plug 2 has an external power supply pin exposed outside the mobile phone charger housing 1.

[0022] The inside of the mobile phone charger housing 1 has a PCB board, on which a control unit 3 and a display screen 4 are installed.

[0023] The mobile phone charger housing 1 is provided with a display window 102 corresponding to the display screen 4. The mobile phone charger housing 1 has a light-transmitting protective part 103 corresponding to the display window 102, and the display screen 4 displays through the light-transmitting protective part 103.

[0024] The PCB board is also equipped with a display screen control command input circuit 5. The signal output terminal of the display screen control command input circuit 5 is electrically connected to the signal terminal of the control unit 3. The control unit 3 receives the screen off / screen on signal from the display screen control command input circuit 5. The control terminal of the control unit 3 is electrically connected to the signal terminal of the display screen 4.

[0025] The display control command input circuit 5 has a non-contact sensing button set on the PCB board. The non-contact sensing button senses the user's tapping action through the mobile phone charger casing.

[0026] When charging a mobile phone using a charger with a built-in display screen, the control unit can display corresponding charging information, such as charging power and whether it is fully charged, through the display screen 4. When the user does not need to use the display screen, the display screen can be turned off through the display screen control command input circuit 5. Or, when the display screen needs to be turned on again after it is turned off, the display screen can be turned on through the display screen control command input circuit 5, which is more versatile. Moreover, the display screen control command input circuit 5 is set to perform non-contact sensing of the user's tap action, which is more conducive to leakage protection.

[0027] In some embodiments, the non-contact sensing button includes an inductive button 501, and the portion of the mobile phone charger housing corresponding to the non-contact sensing button is an insulating structure.

[0028] For example, the part of the mobile phone charger casing corresponding to the contactless sensor button is made of plastic.

[0029] When a user's finger approaches the outside of the phone charger housing 1 and is within the sensing area of ​​the inductive button 501, the display control command input circuit 5 can detect the change in inductance through the inductive button 501, thus recognizing it as a tap by the user. This design eliminates the need for direct contact between the user's finger and the inductive button; the inductive button is located inside the phone charger housing, while the user's finger is outside, and the two are separated by the phone charger housing. This reduces the risk of leakage of current to the user through the inductive button, making operation safer. Furthermore, during operation, no force or excessive pressure is required on the phone charger housing, effectively ensuring the stability of the phone charger during charging.

[0030] In some embodiments, the PCB board includes a first main board 6, a first sub-board 7, and a second sub-board 8. The first sub-board 7 is spliced ​​onto the first main board 6, and the soldering surface of the first sub-board 7 is perpendicular to the soldering surface of the first main board 6. The second sub-board 8 is spliced ​​onto the first main board 6 and the first sub-board 7, and the soldering surface of the second sub-board 8 is perpendicular to the soldering surface of the first main board 6, and the soldering surface of the second sub-board 8 is perpendicular to the soldering surface of the first sub-board 7.

[0031] In some embodiments, the first main board has a first splicing portion corresponding to the first sub-board, and the first sub-board has a first splicing mating portion that mates with the first splicing portion. The first main board has a second splicing portion corresponding to the second sub-board, and the second sub-board has a second splicing mating portion that mates with the second splicing portion. The first sub-board has a third splicing portion that mates with the second sub-board, and the second sub-board has a third splicing mating portion that mates with the third splicing portion.

[0032] The aforementioned splicing parts (first splicing part, second splicing part, and third splicing part) are either extension plug-in boards 9 on the corresponding boards (first main board and first sub-board) or splicing slots opened on the corresponding boards.

[0033] The aforementioned splicing mating parts (first splicing mating part, second splicing mating part, and third splicing mating part) are splicing slots 10 opened on the corresponding plates (first sub-plate and second sub-plate) or extended plug-in plates on the corresponding plates.

[0034] The extension plug-in board 9 is plugged into the corresponding splicing slot 10, so that the first motherboard 6, the first sub-board 7, and the second sub-board 8 can be spliced ​​together to form a complete PCB board.

[0035] In some embodiments, the display window 102 is disposed on the rear side of the mobile phone charger housing 1.

[0036] The front end of the mobile phone charger housing 1 has an installation port 101, and a front cover 104 is connected to the front end of the mobile phone charger housing 1. An exposed opening is provided on the front cover 104, through which the external power plug is exposed outside the front cover.

[0037] After soldering the corresponding electronic components onto the first main board 6, the first sub-board 7, and the second sub-board 8, and splicing the three together, the spliced ​​PCB board can be inserted into the mobile phone charger housing 1 through the mounting port 101 at the front end of the mobile phone charger housing 1.

[0038] Specifically, the welding surface of the second sub-plate 8 is opposite to the inner rear wall of the mobile phone charger housing 1, and the display screen 4 is welded to the welding surface of the second sub-plate 8.

[0039] When the spliced ​​PCB board is inserted into the mobile phone charger housing 1 through the mounting port 101 at the front end of the mobile phone charger housing 1, the display screen 4 is close to the display window 102.

[0040] The aforementioned configuration of the first main board 6, the first sub-board 7, and the second sub-board 8 divides the internal circuitry of the mobile phone charger into three parts: the first part of the circuitry is located on the first main board 6, the second part of the circuitry is located on the first sub-board 7, and the third part of the circuitry is located on the second sub-board 8.

[0041] For example, the first mainboard 6 is equipped with an input filtering and rectification circuit, a PFC circuit, a protocol chip, a transformer, a main control chip of the control unit and its peripheral circuits, etc.; the first sub-board 7 is equipped with an output filtering and rectification circuit, multiple USB output interfaces, etc.; the second sub-board 8 is equipped with a display screen 4, a display screen control command input circuit 5, etc.

[0042] The heat source inside the mobile phone charger is dispersed by the first motherboard 6, the first sub-board 7, and the second sub-board 8, resulting in good heat dissipation efficiency; and the splicing arrangement of the first motherboard 6, the first sub-board 7, and the second sub-board 8 can form a support for the display screen 4.

[0043] In some embodiments, the inductive button 501 is disposed on the welding plate surface of the second sub-board 8 and corresponds to the rear side of the mobile phone charger housing 1.

[0044] The rear side of the mobile phone charger housing 1 is provided with an indicator window corresponding to the inductive button 501. The light-transmitting protection part 103 includes a light-transmitting protective cover connected to the rear side of the mobile phone charger housing 1 and covering the display window 102. The light-transmitting protective cover extends to close the indicator window 105.

[0045] A light-transmitting protective cover, such as a light-transmitting plastic cover, provides insulation while allowing light to pass through, thus preventing interference with the inductive button's sensitivity to the user.

[0046] The light-transmitting protective cover can both protect the display screen and allow users to confirm the location of the inductive buttons through its light transmission effect.

[0047] In some embodiments, the inner wall of the mobile phone charger housing 1 is formed with a positioning guide rail 106, which is arranged at the front and rear, and the front end of the positioning guide rail 106 has an insertion port corresponding to the first motherboard 6.

[0048] The side of the positioning guide rail 106 (e.g.) Figure 5 The upper side of the lower positioning guide rail or the lower side of the upper positioning guide rail has a positioning groove arranged along the length of the positioning guide rail, and the groove opening extends to communicate with the insertion port.

[0049] In some embodiments, a pair of opposing inner walls of the mobile phone charger housing 1 (such as...) Figure 5 Positioning guide rails are formed on both the upper and lower inner walls of the container.

[0050] The two different positioning guides on the opposing inner walls have their positioning grooves facing each other. For example... Figure 5 As shown, the positioning guide rail on the upper inner wall of the mobile phone charger housing has its positioning groove opening facing downwards; the positioning guide rail on the lower inner wall of the mobile phone charger housing has its positioning groove opening facing upwards; and the downward-facing groove and the upward-facing groove are directly opposite each other.

[0051] The first motherboard 6 is inserted into two different positioning guides on the opposite inner walls. The positioning guides hold the first motherboard 6 in place to ensure that the PCB board as a whole is stable inside the mobile phone charger housing.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mobile phone charger with a display screen, comprising a mobile phone charger housing, a power connector on the mobile phone charger housing having external power pins exposed outside the mobile phone charger housing, a PCB board inside the mobile phone charger housing, a control unit and a display screen on the PCB board, a display window corresponding to the display screen on the mobile phone charger housing, and a light-transmitting protective portion corresponding to the display window, the display screen displaying information through the light-transmitting protective portion; characterized in that... The PCB board is also equipped with a display control command input circuit. The signal output terminal of the display control command input circuit is electrically connected to the signal terminal of the control unit. The control unit receives the screen off / screen on signal from the display control command input circuit. The control terminal of the control unit is electrically connected to the signal terminal of the display screen. The display control command input circuit has a non-contact sensing button set on the PCB board. The non-contact sensing button senses the user's tapping action through the mobile phone charger casing.

2. The cell phone charger of claim 1, wherein, Non-contact sensing buttons include inductive buttons, and the housing portion on the mobile phone charger corresponding to the inductive button is an insulated structure.

3. The cell phone charger of claim 1, wherein, The PCB board includes a first main board, a first sub-board, and a second sub-board; The first sub-board is spliced ​​onto the first main board, and the welding surface of the first sub-board is set perpendicular to the welding surface of the first main board. The second sub-board is spliced ​​onto the first main board and the first sub-board, with the welding surface of the second sub-board perpendicular to the welding surface of the first main board.

4. The cell phone charger of claim 3, wherein, The inside of the mobile phone charger casing contains at least three circuits: the first circuit is located on the first main board, the second circuit is located on the first sub-board, and the third circuit is located on the second sub-board.

5. The cell phone charger of claim 4, wherein, The display screen and the display screen control command input circuit are included in the third part of the circuit.

6. The cell phone charger of claim 5, wherein, The display window is located on the back of the phone charger casing; The front end of the mobile phone charger housing has an installation port, and a front cover is connected to the front end of the mobile phone charger housing. An exposed opening is provided on the front cover, through which the external power plug is exposed outside the front cover. The welding surface of the second sub-board is opposite to the inner rear wall of the mobile phone charger housing, and the display screen is welded to the welding surface of the second sub-board; when the spliced ​​PCB board is installed into the mobile phone charger housing from the mounting port at the front end of the mobile phone charger housing, the display screen is close to the display window.

7. The cell phone charger of claim 6, wherein, The light-transmitting protection section includes a light-transmitting protective cover attached to the rear side of the mobile phone charger housing and covering the display window.

8. The cell phone charger of claim 7, wherein, The non-contact inductive button includes an inductive button set on the welding plate surface of the second sub-board. An indicator window corresponding to the inductive button is opened on the rear side of the mobile phone charger housing, and a light-transmitting protective cover extends to the closed indicator window.

9. The mobile phone charger according to claim 6, characterized in that, The inner wall of the mobile phone charger casing is formed with positioning guide rails, which are positioned at the front and back. The front end of the positioning guide rails has an insertion port corresponding to the first motherboard. The side of the positioning guide rail has a positioning groove that is set along the length of the positioning guide rail, and the groove opening extends to communicate with the insertion port.

10. The cell phone charger of claim 6, wherein, A pair of opposite inner walls of the mobile phone charger housing are formed with positioning guide rails; The two different positioning guide rails on the pair of opposite inner walls are arranged with the notches of the positioning sliding grooves facing each other, The first main board is inserted into the two different positioning guide rails on the pair of opposite inner walls.

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