CN211319480U - Multi-power output multimedia equipment - Google Patents
Multi-power output multimedia equipment Download PDFInfo
- Publication number
- CN211319480U CN211319480U CN201922248280.9U CN201922248280U CN211319480U CN 211319480 U CN211319480 U CN 211319480U CN 201922248280 U CN201922248280 U CN 201922248280U CN 211319480 U CN211319480 U CN 211319480U
- Authority
- CN
- China
- Prior art keywords
- circuit
- power
- control
- charging
- multimedia device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a multi-power output multimedia device, which comprises a control circuit, a voltage stabilizing circuit and a charging circuit; the control circuit is connected with the charging circuit through the driving circuit, one end of the voltage stabilizing circuit is connected with the charging circuit, and the other end of the voltage stabilizing circuit is connected with the control circuit; the charging circuit is provided with a micro-usb circuit, a type-c circuit and a lighting circuit, and the micro-usb circuit, the type-c circuit and the lighting circuit are connected in parallel between the voltage stabilizing circuit and the charging circuit; the control circuit comprises a control chip U1, an infrared transmitting circuit, a laser transmitting circuit and an antenna circuit, wherein the infrared transmitting circuit, the laser transmitting circuit and the antenna circuit are respectively connected to the control chip U1. The multi-power output multimedia equipment of the utility model has scientific and reasonable design, is provided with the mobile power supply, adopts the large-capacity lithium battery, avoids frequent charging, and prolongs the service life and the whole service life of the product; RF and infrared functions are added, and external devices can be powered in various ways.
Description
Technical Field
The utility model relates to a multimedia equipment technical field, concretely relates to green, and the function is various, uses very practical wireless microphone through intelligent power supply in scenes such as present meeting and teaching.
Background
With the rapid development of electronic manufacturing industry, various electronic products are increasingly popularized, for example, a laser demonstrator is gradually becoming an indispensable tool in the places of conference lectures, electronic teaching and the like, and the laser demonstrator mainly comprises a handheld transmitter and a USB receiving end, and is used for explaining by matching laser indication with PPT documents during use. The portable power source is a portable charging device which can be carried about and can store electric energy, almost one hand is used for carrying out relay charging or power supply on consumer electronic products (such as smart phones and tablets) such as handheld mobile equipment, and the like, and the main components of the portable power source comprise a battery and a charging and discharging management circuit.
In traditional meeting and teaching application scene, the laser demonstration ware mainly adopts dry battery and small-size lithium cell, uses the dry battery to lead to the fact equipment frequent change battery, and the battery of abandoning causes environmental pollution, not environmental protection easily. The small lithium battery can only maintain the power supply of the laser demonstrator, and with the appearance of electronic products with various functions (such as wireless microphones, earphones and the like), a mobile power supply is required to be used as a relay charging and standby power supply in many application scenes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a green, and the function is various, uses the multimedia device of many power output of very practical in scenes such as present meeting and teaching.
In order to overcome the battery capacity that laser demonstration ware ubiquitous among the above-mentioned prior art is low or use disposable battery, easily cause environmental pollution, and the function is more single, at scene such as present meeting and teaching application defect that is not very practical the utility model discloses a following technical scheme:
a multi-power output multimedia device comprises a control circuit, a voltage stabilizing circuit and a charging circuit; the control circuit is connected with the charging circuit through the driving circuit, one end of the voltage stabilizing circuit is connected with the charging circuit, and the other end of the voltage stabilizing circuit is connected with the control circuit; the charging circuit is provided with a micro-usb circuit, a type-c circuit and a lighting circuit, and the micro-usb circuit, the type-c circuit and the lighting circuit are connected in parallel between the voltage stabilizing circuit and the charging circuit; the control circuit comprises a control chip U1, an infrared transmitting circuit, a laser transmitting circuit and an antenna circuit, wherein the infrared transmitting circuit, the laser transmitting circuit and the antenna circuit are respectively connected to the control chip U1.
Furthermore, the charging circuit is connected to the power supply VBUS through a diode D2, and the charging circuit is provided with a regulating resistor R3, and the regulating resistor R3 is connected to the charging circuit.
Further, the micro-usb circuit, the type-c circuit, and the lighting circuit are connected to the battery BATT through D1.
Furthermore, the driving circuit is a triode Q2 or a MOS transistor, the ground end and the output end of the triode Q1 are connected with a resistor R4, and the triode Q2 is connected with the charging circuit through a capacitor C11.
Furthermore, a triode Q1 is arranged between the infrared emission circuit and the laser emission circuit, one end of the triode Q1 is connected with the control circuit, and the other two ends are respectively connected with the infrared emission circuit and the laser emission circuit.
Furthermore, the control circuit also comprises a crystal oscillator circuit, and two ends of the crystal oscillator circuit are respectively connected with the control chip U1 and are grounded through the capacitor C8 and the capacitor C6.
Furthermore, the control circuit further comprises a plurality of LED indicator light circuits and a plurality of control key circuits, and the LED indicator light circuits and the control key circuits are respectively connected to the control chip U1.
Furthermore, the control key circuit is provided with a Mode key, a PGdn key, a PGup key and a Laser key.
Furthermore, the multimedia device with multiple power outputs further comprises a shell, a laser transmitter, an infrared transmitting tube, a plurality of LED indicating lamps and a plurality of keys, wherein the laser transmitter, the infrared transmitting tube, the plurality of LED indicating lamps and the plurality of keys are positioned on the shell, and the laser transmitter, the infrared transmitting tube, the plurality of LED indicating lamps and the plurality of keys are connected with the control circuit.
Furthermore, a concave slideway and a safety lock hole are arranged on the shell, the concave slideway is matched with the charged base electronic lock, and the base electronic lock is buckled with the safety lock hole on the shell.
The multi-power output multimedia equipment of the utility model has scientific and reasonable design, is provided with the mobile power supply, adopts the large-capacity lithium battery, avoids frequent charging, and prolongs the service life and the whole service life of the product; RF and infrared functions are added, and external devices can be powered in various ways.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive exercise according to the drawings:
fig. 1 is a schematic diagram of an embodiment of a multi-power output multimedia device according to the present invention;
FIG. 2 is a schematic front view of a multi-power output multimedia device;
FIG. 3 is a schematic rear view of a multi-power output multimedia device;
FIG. 4 is a schematic top view of a multi-power output multimedia device;
fig. 5 is a schematic bottom view of a multi-power output multimedia device.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, and the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
As shown in fig. 1 to 5, a multi-power output multimedia device includes a control circuit, a voltage stabilizing circuit, and a charging circuit; the control circuit is connected with the charging circuit through the driving circuit, one end of the voltage stabilizing circuit is connected with the charging circuit, and the other end of the voltage stabilizing circuit is connected with the control circuit; the charging circuit is provided with a micro-usb circuit, a type-c circuit and a lighting circuit, and the micro-usb circuit, the type-c circuit and the lighting circuit are connected in parallel between the voltage stabilizing circuit and the charging circuit; the control circuit comprises a control chip U1, an infrared transmitting circuit, a laser transmitting circuit and an antenna circuit, wherein the infrared transmitting circuit, the laser transmitting circuit and the antenna circuit are respectively connected to the control chip U1.
Specifically, the control chip U1 is a programmable microcontroller integrated with a 2.4G rf transceiver, and it forms a minimum wireless control system with peripheral circuits, its pins 6, 10, 20, and 26 are connected to the input power supply BATT, and the substrate of the control chip U1 is connected to ground; a pin 28 is connected with a Mode key, a pin 29 is connected with a PGdn key, a pin 30 is connected with a PGup key, a pin 31 is connected with a Laser key, pins 11, 12, 13, 14, 15 and 16 are respectively connected with 6 LED indicator lamps, a pin 27 is connected with the negative electrode of an infrared emission tube IRD, a pin 25 is connected with the B pole of a triode Q1, and a pin 21 is connected with the C pole of a triode Q2; pins 1 connect pins 3 and 4 of the interface of the type-c circuit. The main part of the voltage stabilizing circuit is a voltage stabilizing chip U2, a pin U21 of the voltage stabilizing chip is grounded, a pin 3 is connected with a battery anode VBATT, and a pin 2 is connected with VCC; the main part of the charging circuit is a charging chip U3, pins 1 and 3 of the charging chip U3 are grounded, a pin 2 is connected with a regulating resistor R3, and pins 4 and 8 are connected with a power supply VBUS through a diode D2. The +5V of the three interfaces of the micro-usb circuit, the type-c circuit and the lighting circuit is connected to the battery through a diode D1 and is connected to the charging chip U3 through a diode D2.
Preferably, the charging circuit is connected to the power source VBUS through a diode D2, the charging circuit is provided with a regulating resistor R3, and the regulating resistor R3 is connected to the charging circuit. The micro-usb circuit, the type-c circuit and the lighting circuit are connected to the battery BATT through D1.
In some embodiments, the driving circuit is a transistor Q2 or a MOS transistor, a resistor R4 is connected to a ground terminal and an output terminal of the transistor Q1, and the transistor Q2 is connected to the charging circuit through a capacitor C11. A triode Q1 is arranged between the infrared emission circuit and the laser emission circuit, one end of a triode Q1 is connected with the control circuit, and the other two ends are respectively connected with the infrared emission circuit and the laser emission circuit.
Specifically, the control circuit further comprises a crystal oscillator circuit, two ends of the crystal oscillator circuit are respectively connected with the control chip U1 and are grounded through a capacitor C8 and a capacitor C6, and the crystal oscillator is 16M. The control circuit also comprises a plurality of LED indicator light circuits and a plurality of control key circuits, and the LED indicator light circuits and the control key circuits are respectively connected to the control chip U1; the LED indicating lamp circuit is divided into a circuit of an LED mode indicating lamp and a circuit of an LED electric quantity indicating lamp. The control key circuit is provided with a Mode key, a PGdn key, a PGup key and a Laser key.
The working principle of the embodiment is as follows:
when a 5V power supply is plugged into a micro-usb, type-c or lighting interface, a pin 23 of the control chip U1 detects a 5V voltage, the device enters a charging mode, and the power supply VBUS charges the battery BATT through the diode D2 and the charging chip U3. Meanwhile, the pin 22 of the control chip U1 monitors the voltage of the battery and provides a corresponding power indication, for example, the current voltage is 3.6V, it indicates that the battery is at about level 2 power according to the relationship between the voltage and the capacity of the lithium battery, the indicator light LED2 is turned on, the LED3, the LED4 and the LED5 are sequentially turned on every second, a cycle is completed, it indicates that the battery is currently in the charging mode, the power of the battery is charged to 20%, until the voltage reaches about 4.2V, it indicates that the battery is fully charged, and at this time, the LEDs 1 to the LED5 are fully turned on.
Control chip U1's 1 foot still can send electric quantity data for charging base, when type-c circuit has the special base of inserting, still is furnished with the safety lock in the base, inserts functions such as detection, and the base can be sent the state and the electric quantity of equipment to the thing networking backstage, realizes high in the clouds management.
When the 5V power supply is pulled out, the equipment enters a dormant state. The battery anode VBATT is stabilized through a voltage stabilizing chip U2, the output voltage VCC supplies power to a system, when any key is pressed, equipment can be awakened, when a Mode key is pressed, the emission Mode can be switched between an infrared Mode and an RF Mode, when the infrared Mode is switched, an indicator light LED6 is normally on, when PGup and PGdn keys are pressed, a pin 27 of U1 can control an infrared emission tube to send a preset infrared code, and the preset infrared code is usually a command for system on and system off in a central control system. When the computer is switched to the RF mode, the LED6 indicating lamp is turned off, the PGup and PGdn keys are pressed, the RF chip can send the instructions of the previous page and the next page to the matched USB receiver, the receiver can mode the keyboard codes of the PageUp and PageDown of the computer, and the functions of the previous page and the next page can be realized when the computer demonstrates documents. Pressing the Laser key will control the Q1 to turn on the Laser transmitter, and to turn off the Laser transmitter when released, as shown by pin 25 of control chip U1. After the operation triggered by each key press is completed, the system returns to the dormant state again.
When the external equipment needs to be powered, the battery VBATT can be output to VBUS through the diode D1, and the VBUS can be output to power the external equipment through 3 interfaces of micro-usb, type-c and lighting.
Further, the multi-power output multimedia device further comprises a shell 100, a laser transmitter 200, an infrared transmitting tube 300, a plurality of LED indicator lamps 400 and a plurality of keys 500, wherein the laser transmitter 200, the infrared transmitting tube 300, the plurality of LED indicator lamps 400 and the plurality of keys 500 are positioned on the shell 100, and the laser transmitter 200, the infrared transmitting tube 300, the plurality of LED indicator lamps 400 and the plurality of keys 500 are connected with a control circuit; the LED indicating lamp 400 is divided into an LED mode indicating lamp and an LED power indicating lamp. Specifically, a concave slide 101 and a safety lock hole 102 are arranged on the housing 100, the concave slide 101 is matched with a charged base electronic lock, and the base electronic lock locks the safety lock hole 102 on the housing 100.
In detail, the laser emitter 200 may emit red visible light; the infrared transmitting tube 300 can transmit an infrared remote control code; the LED mode indicator lamp is on for a long time to indicate the infrared mode, otherwise, the LED mode indicator lamp is in the RF mode; 5 LED electric quantity indicator lamps for indicating the current residual electric quantity; the plurality of keys 500 consists of: a Laser key 501, which is pressed to turn on the Laser transmitter 200; a PGup button 502 for sending a remote control code of system on in an infrared mode and sending a 'previous page' instruction in an RF mode; PGdn presses, 503, sends out the remote control code of system off in the infrared mode, send out the order of "next page" in the RF mode; a Mode button 504 is pressed to switch the infrared and RF modes.
Compared with the prior art, the multi-power output multimedia equipment adopts a large-capacity lithium battery, frequent charging is avoided, the service life of the product is prolonged, the overall service life of the product is prolonged, and rich functions of RF and infrared, memory safety lock, internet of things centralized management and the like are added.
The external dimension is 88.5mm in length, 30mm in width and 18mm in thickness; wholly grow up cuboid structure, by the top shell, the center comprises with the drain pan, the four corners is handled through the mellow chamfer, and top shell and drain pan are the cambered surface design, and symmetry and frivolous hold and feel splendid. From the top down be laser designator, infrared emitter, 6 work pilot lamps, 4 operation buttons, 3 power source. The side of the middle frame 2 is provided with a concave groove for connecting a suspension type buckle. The bottom shell is provided with 3 screw holes, the screw hole close to the power interface is also a lock hole for supporting the electronic lock, and the electronic lock tongue can easily slide in and out of the lock hole by combining the concave slideway 101 designed at the bottom. Although the volume is slightly larger than that of a traditional laser demonstrator, the laser demonstrator is more suitable for handheld devices in practical use, and the battery capacity is enough, so that the laser demonstrator can be used for a long time after being charged once.
The inside adopts the polymer lithium battery, the approximate capacity is 900mah-1000mah, 2 protection diodes are placed at the power input and output ports to prevent the voltage reversal, the external equipment required to be supported by the application scene, such as wireless microphone, wireless earphone and other equipment, can find that the power of the product is smaller in the actual use, the power of the internal circuit system is mostly about 3.3V, when the power of the external equipment is insufficient, the external equipment generally only needs the power input higher than the system voltage to work, if the external power adopts the boosting output mode of the traditional mobile power supply, the conversion loss is larger, the conversion rate is not high, therefore, the product design of the utility model simplifies the output boosting circuit, adopts the direct output mode of the lithium battery, improves the output capacity of the battery to the external equipment, in addition, the self circuit also adopts the design of ultra-low power consumption, the circuit is in the dormant state at ordinary times, only the user operates the keys to wake up the equipment, and the equipment returns to the dormant state after the operation is finished. In the aspect of power external interface, compare traditional portable power source interface, adopt micro-usb, TYPE-C, lighting three interface, it is compatible better, wherein TYPE _ C interface not only has two-sided blind plug, and support input and output, external connection is very simple and convenient through same interface connection, but also the design has convenient buckle and safe hasp, can easily hang on one's body, insert the base and can not only lock, charge, can also insert thing networking systems, let the state of equipment surveyability, at high in the clouds alright realize centralized management.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A multi-power output multimedia device comprises a control circuit, a voltage stabilizing circuit and a charging circuit; the method is characterized in that:
the control circuit is connected with the charging circuit through the driving circuit, one end of the voltage stabilizing circuit is connected with the charging circuit, and the other end of the voltage stabilizing circuit is connected with the control circuit; the charging circuit is provided with a micro-usb circuit, a type-c circuit and a lighting circuit, and the micro-usb circuit, the type-c circuit and the lighting circuit are connected in parallel between the voltage stabilizing circuit and the charging circuit; the control circuit comprises a control chip U1, an infrared transmitting circuit, a laser transmitting circuit and an antenna circuit, wherein the infrared transmitting circuit, the laser transmitting circuit and the antenna circuit are respectively connected to the control chip U1.
2. A multi-power-output multimedia device according to claim 1, wherein:
the charging circuit is connected to a power supply VBUS through a diode D2, a regulating resistor R3 is arranged on the charging circuit, and the regulating resistor R3 is connected with the charging circuit.
3. A multi-power-output multimedia device according to claim 2, wherein:
the micro-usb circuit, the type-c circuit and the lighting circuit are connected to the battery BATT through D1.
4. A multi-power-output multimedia device according to claim 1, wherein:
the drive circuit is a triode Q2 or an MOS tube, the ground terminal and the output terminal of the triode Q1 are connected with a resistor R4, and the triode Q2 is connected with the charging circuit through a capacitor C11.
5. A multi-power-output multimedia device according to claim 1, wherein:
a triode Q1 is arranged between the infrared emission circuit and the laser emission circuit, one end of a triode Q1 is connected with the control circuit, and the other two ends are respectively connected with the infrared emission circuit and the laser emission circuit.
6. A multi-power-output multimedia device according to claim 1, wherein:
the control circuit further comprises a crystal oscillator circuit, and two ends of the crystal oscillator circuit are respectively connected with the control chip U1 and are grounded through the capacitor C8 and the capacitor C6.
7. A multi-power-output multimedia device according to claim 1, wherein:
the control circuit further comprises a plurality of LED indicating lamp circuits and a plurality of control key circuits, and the LED indicating lamp circuits and the control key circuits are respectively connected to the control chip U1.
8. A multi-power-output multimedia device according to claim 7, wherein:
the control key circuit is provided with a Mode key, a PGdn key, a PGup key and a Laser key.
9. A multi-power-output multimedia device according to any one of claims 1-8, wherein:
the multimedia equipment with multiple power outputs further comprises a shell, a laser transmitter, an infrared transmitting tube, a plurality of LED indicating lamps and a plurality of keys, wherein the laser transmitter, the infrared transmitting tube, the plurality of LED indicating lamps and the plurality of keys are located on the shell and connected with the control circuit.
10. A multi-power-output multimedia device according to claim 9, wherein:
and a concave slideway and a safety lock hole are arranged on the shell, the concave slideway is matched with the charged base electronic lock, and the base electronic lock is buckled with the safety lock hole on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248280.9U CN211319480U (en) | 2019-12-12 | 2019-12-12 | Multi-power output multimedia equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248280.9U CN211319480U (en) | 2019-12-12 | 2019-12-12 | Multi-power output multimedia equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211319480U true CN211319480U (en) | 2020-08-21 |
Family
ID=72056738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922248280.9U Active CN211319480U (en) | 2019-12-12 | 2019-12-12 | Multi-power output multimedia equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211319480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022247587A1 (en) * | 2021-05-28 | 2022-12-01 | 格力博(江苏)股份有限公司 | Charging apparatus and application thereof |
-
2019
- 2019-12-12 CN CN201922248280.9U patent/CN211319480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022247587A1 (en) * | 2021-05-28 | 2022-12-01 | 格力博(江苏)股份有限公司 | Charging apparatus and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107196369B (en) | Multi-interface quick charging power supply | |
| US9515419B2 (en) | High power rechargeable flashlight with two way universal serial BUS | |
| CN211456715U (en) | Mobile power supply | |
| US20200059110A1 (en) | Multifunction wireless charging pad | |
| CN101009745A (en) | Four-in-one handset charging holder | |
| CN204089246U (en) | Wireless charging portable power source | |
| CN111756086B (en) | Power bridging device and bridging method using mobile robot battery | |
| TWI574486B (en) | Charging Device | |
| CN211319480U (en) | Multi-power output multimedia equipment | |
| CN202817803U (en) | Charging and discharging mobile power supply with single USB interface | |
| CN205846783U (en) | With handset mounting and the intelligent 5V power supply adaptor of ear playing function | |
| CN204046673U (en) | A kind of mobile phone with double cell function | |
| CN207663767U (en) | A kind of intelligent information Sign Board | |
| CN202602976U (en) | Remote control with USB and sleep wake-up device | |
| CN106058992B (en) | Intelligent 5V power supply adaptor with handset bracket and ear playing function | |
| CN203377657U (en) | Mobile power supply | |
| CN206922482U (en) | Dorsal clamp type portable power source | |
| CN106973479B (en) | Switching circuit system for intelligent lamp and switching method thereof | |
| CN203951224U (en) | A kind of portable power source of Portable self-contained connecting line | |
| CN210110084U (en) | Multifunctional laser pen for teaching | |
| CN216089878U (en) | LED crystal photo placing table and base | |
| CN212322218U (en) | Dual-mode switchable input device | |
| CN203823688U (en) | Lamp base with function of charging mobile power source and mobile power source system | |
| CN211296277U (en) | Sharing is dried and cell-phone dual-purpose device that charges | |
| CN204012807U (en) | A kind of chargeable multiple power supplies output |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |