KR100784305B1 - Multifunctional portable charger for mobile devices - Google Patents

Abstract

The present invention relates to a multifunctional portable charger capable of recharging exhausted power of a portable device as well as being used as a safety lamp, a pulse measuring device, a game machine, etc .; A secondary battery capable of charging from an external charger and supplying power to the microcomputer; A DC / DC converter for boosting the voltage of the charger or the secondary battery to a reference voltage of the microcomputer; An external charge control circuit controlled by the microcomputer to output an output voltage of the DC / DC converter to a charger of an external device; A high brightness LED lamp controlled by the microcomputer and emitting light at an output voltage of the DC / DC converter; And a photodiode for outputting an electrical signal proportional to the reflected light intensity by reflecting the infrared rays of the infrared light emitting diodes irradiated to the human body such as an infrared light emitting diode and a finger that emit infrared light, and an amplifying circuit for amplifying the output of the photodiode. It consists of a detection circuit for generating a pulse corresponding to the pulse from the change in the intensity of the electrical signal received from the output of the circuit output to the microcomputer, the pulse sensor driven by the output voltage of the DC / DC converter; According to the present invention, by carrying one device during leisure activities or outdoor activities, it is possible to charge portable devices such as mobile phones, MP3 players, GPS receivers, moving distance measuring devices, DMB, PMP, etc. Can be used as a flashlight and safety at night, and check your heart rate during leisure activities. You can check, and the break has the advantage that you can play a simple random lottery game.

Portable, Charger, Multifunction

Description

Multifunctional portable charger {MULTIFUNCTIONAL PORTABLE CHARGER FOR MOBILE DEVICES}

1 is a block diagram of a multifunctional portable charger according to the present invention.

2 is an external perspective view of a multifunctional portable charger according to the present invention.

3a to 3p is a state diagram showing the function of the multifunctional portable charger according to the present invention.

        Explanation of symbols on the main parts of the drawings

10: micom 12: first function key

14: second function key 16: main key

18: 24-pin connector 20: Secondary battery protection circuit

24: secondary battery 26: DC-DC converter

28: constant voltage circuit 30: secondary battery charge detection circuit

32: external charge control circuit 34: external charge current monitoring circuit

36: USB connector 38: LED lamp

40: buzzer 42: detection circuit

44: amplification circuit 46: pulse detection button

48: photodiode 50: ultraviolet light emitting diode

52: light emitting circuit 54a, 54b: LED

56: LED display

The present invention relates to a portable charger, and more particularly, to exhausted power of portable devices such as mobile phones, MP3 players, GPS receivers, moving distance measuring devices, etc. in environments where it is difficult to use commercial power sources such as outdoor activities and leisure activities. Not only can recharge, but also relates to a multifunctional portable charger that can be used as a safety light, pulse meter, game machine, and the like.

Portable devices such as mobile phones, MP3 players, GPS receivers, and range finders use rechargeable batteries that are mostly rechargeable by their power source. Since there is a certain limit on the amount of charge power of rechargeable batteries, these portable devices that use rechargeable batteries as power sources are used for leisure activities such as mountain climbing, cycling, marathon, in-line skating, and outdoor activities such as picnics and travel. It is easy to be discharged under the final voltage and no longer use the portable device. In particular, a portable device that provides a video such as a digital media broadcasting (DMB) receiving terminal and a portable media player (PMP) has a high power consumption, thereby shortening the use time of a secondary battery.

In addition, it is necessary for a person who performs leisure activities such as cycling, running and in-line skating at night to be aware of his / her presence to the driver of the vehicle or other leisure workers in the adjacent distance for safety of collision avoidance.

In addition, when leisure activities such as marathon, cycling, hiking, etc., which require a large amount of physical fitness, it is necessary to check their physical condition from time to time to rest. The easiest way to check your physical condition is to check your pulse rate.

In addition, in the case of a break or travel during leisure activities, if there is a portable device that can play a simple random lottery game, it can be very useful.

A person having leisure or outdoor activities can purchase and use a device having the above-described functions individually. However, when these devices are purchased separately, a separate battery must be used for each device, and the weight is too heavy for carrying and leisure activities.

The present invention devised to solve the above problems of the prior art is to provide a multi-function portable charger that can provide a variety of functions required during the leisure or outdoor activities with a common power source.

Micom;

A secondary battery capable of charging from an external charger and supplying power to the microcomputer;

A DC / DC converter for boosting the voltage of the charger or the secondary battery to a reference voltage of the microcomputer;

An external charge control circuit controlled by the microcomputer to output an output voltage of the DC / DC converter to a charger of a portable device;

A high brightness LED lamp controlled by the microcomputer and emitting light at an output voltage of the DC / DC converter; And

An infrared light emitting diode for emitting infrared light, a photodiode for reflecting the infrared light of the infrared light emitting diode irradiated on a human body such as a finger and outputting an electrical signal proportional to the reflected light intensity, an amplifying circuit for amplifying the output of the photodiode, the amplifying circuit It consists of a detection circuit for generating a pulse corresponding to the pulse from the change in the intensity of the electrical signal received from the output of the output to the microcomputer, the pulse sensor driven by the output voltage of the DC / DC converter; It features.

The microcomputer includes an LED display including a plurality of LEDs controlled by the microcomputer, and displays the state of charge of the secondary battery, displays whether the portable device is charged, and displays safety patterns by using the LED display and the LED lamp. It is desirable to enable the LED flashing according to the pulse rate display or certain game rules.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the multi-function portable charger according to the present invention will be described in detail.

1 is a configuration diagram of a multifunctional portable charger according to the present invention, Figure 2 is an external perspective view of the multifunctional portable charger according to the present invention, Figures 3a to 3p is a state diagram showing the function of the multifunctional portable charger according to the present invention Respectively.

Referring to FIG. 1, the multifunctional portable charger according to the present invention includes a secondary battery 24, and boosts the output voltage of the secondary battery 24 to 5V by the DC-DC converter 26, and then connects the USB connector. Through (36), the mobile phone, MP3 player, GPS receiver, mobile range finder, DMB receiver terminal, PMP and the like are outputted to a connector gender capable of charging a secondary battery built in a portable device. If the portable device to be charged has a built-in charging circuit, use a connector gender without a built-in charging circuit.If the portable device to be charged does not have a built-in charging circuit, use a connector gender with a built-in charging circuit. use. The secondary battery 24 is preferably two lithium ion batteries having a capacity of 2200 mA, but is not limited thereto. The secondary battery 24 is charged with a charging current having a voltage of 4.2V by a 24-pin connector into which a 24-pin charging jack of a conventional mobile phone charger is inserted. The secondary battery 24 is provided with a protection circuit 20 to prevent overcharge and overdischarge of the secondary battery in parallel.

1 and 2, the multifunctional portable charger according to the present invention includes a high brightness LED lamp 38 that can be used for a flash, safety light, pulse rate display, and the like.

In addition, as shown in Figures 1 and 2, the present invention is connected to the light emitting circuit 52 to count the pulse rate by using a change in the amount of reflected light after irradiating infrared rays when the user touches the finger, etc., infrared Infrared light emitting diode 50 for emitting light, photodiode 48 for reflecting the infrared light of the infrared light emitting diode 50 irradiated to the human body such as a finger and outputting an electrical signal proportional to the reflected light intensity, output of the photodiode An amplifying circuit 44 which amplifies, and a pulse sensor composed of a detection circuit 42 which receives the output of the amplifying circuit 44 and generates a pulse corresponding to the pulse from a change in the intensity of the electrical signal. In FIG. 2, reference numeral 46 denotes a pulse detection button provided on the infrared light emitting diode 50 and the photodiode 48 and made of a transparent material.

In addition, the present invention includes an LED display 56 composed of a plurality of LEDs 54a and 54b, and the state of charge of the secondary battery 24 using the LED display 56 and the LED lamp 38. Display, charge status display of the portable device, safety pattern display, pulse rate display or LED flash according to certain game rules. In addition, the present invention preferably further includes a buzzer 40 so as to simultaneously generate a sound when a user inputs a key or emits light of the LEDs 54a and 54b.

A feature of the present invention is that the secondary battery 24 is not only used to charge the secondary battery of a portable device, but also the power supply and infrared light of the high brightness LED lamp 38 which is responsible for a part of a flash function, a safety light function or a display function. Power supply of the pulse sensor consisting of a light emitting diode 50, a photodiode 48, an amplifying circuit 44, a detection circuit 42, etc., a charge state display function of a secondary battery, a charge state display function of an external portable device , A safety light pattern display function, a pulse rate display function or the LED display 56 in charge of the LED flashing function according to a predetermined game rule. By this configuration, by carrying a very compact and lightweight device, it is possible to use all the functions of various devices necessary for leisure activities and outdoor activities.

1 and 3A, the present invention provides a main key 16 to which a power switch and a mode selection function such as standby, safety light, heart rate measurement, game, and the like, a cursor key of a game mode, and the LED lamp 38 are provided. The first function key 12 to which functions such as on / off and safety light type selection are given, the number selection key of game mode, and the second function key 14 to which brightness control of the LED lamp 38 is provided. ).

Referring back to FIG. 1, the amount of charge detection of the secondary battery 24, the charging of a portable device by the secondary battery 24, the reception and counting of a pulse signal from the pulse sensor, the high brightness LED lamp 38 ), The LED display 56, etc. are connected to the input signal of the main key 16, the first function key 12 and the second function key 14 and the portable device to the USB connector 36. It is controlled by the microcomputer 10 depending on whether or not.

In addition, the present invention includes a DC / DC converter 26, converts the charge voltage (4.2V) of the 24 pin charging jack or the output voltage (3.7V) of the secondary battery 24 to 5V to the microcomputer It is used as the power supply of (10), the charging voltage for an external portable device, and the drive power supply required for each above-mentioned component of this invention. At this time, the reference voltage of the microcomputer 10 supplies the output voltage of the DC / DC converter 26 after the ripple is completely removed by the constant voltage circuit 28.

In addition, the USB connector 36 provided to charge the portable device includes an external charge control circuit 32 for controlling the charging of the portable device by the DC / DC converter 26 by the microcomputer 10. Further, an external charge current monitoring circuit 34 for monitoring the amount of current used to charge the portable device through the USB connector 36 to stop charging by the external charge control circuit 32 is further provided.

When the user selects the heart rate mode by the input of the main key 16, the pulse rate is counted by receiving a pulse from the detection circuit 42 of the pulse sensor. In addition, the microcomputer 10 may receive an analog signal from the amplification circuit 44 of the pulse sensor and use it as a key input of a user such as a game start key.

The microcomputer 10 displays the state of charge of the secondary battery 24 using the LED display 56 and the LED lamp 38 according to a user's input of the keys 16, 12, and 14, and an external portable device. Controls whether or not the charging, safety pattern display, pulse display, pulse rate display or LED flashing according to a certain game rules. The microcomputer 10 may be used as a flash by lighting the high brightness LED lamp 38 in accordance with a user's key input. In addition, the microcomputer 10 receives the current charge amount from the charge detection circuit 30 connected to the secondary battery 24 to display the state of charge of the secondary battery 24.

Referring to FIG. 2, when the present invention is used as a safety lamp, the LED display 56 is attached to a bicycle, a backpack, or the like so that the LED display 56 faces rearward.

Hereinafter, a charging function, a safety light function, a heartbeat function, a game function, etc. which can be performed by the present invention having the above-described configuration will be described with reference to FIGS. 3A to 3P. Since the function according to the present invention is performed by the program executed in the microcomputer 10, the functions shown in FIGS. 3A to 3P correspond to the algorithm of the program executed in the microcomputer 10 of the present invention.

3A, the lower 24-pin connector 18 is connected to the 24-pin charging jack of the existing mobile phone charger to charge the secondary battery 24, and the upper USB connector 36 charges the mobile phone or other portable device. This pluggable connector is connected to charge the rechargeable battery contained in the portable device.

The main key 16 is an on / off and function mode selection key of the main power supply. The mode that can be selected by the main key 16 is composed of a standby mode, a safety light mode, a heart rate mode, and a game mode in accordance with the function performed by the present invention. When the main key 16 is pressed for the first time while the power is off, the power is turned on, and when pressed further, the mode is switched in the order of standby mode-> safety mode-> heart mode-> game mode. The first function key 12 functions as a cursor key in a game mode, an LED lamp 38 on / off key, or a safety light type selection key. The second function key 14 serves as a number selection key or LED lamp 38 brightness control key in the game mode. The pulse detection button 46 performs a heartbeat input function in the heartbeat mode, performs a battery charge display function in the standby mode, and performs a game start key function in the game mode. The LEDs 54a and 54b are composed of a total of 10 LEDs 54b in 5 rows of inner 2 rows and a total of 10 LEDs 54a in 5 rows of outer 2 rows, and blue LEDs are used as the inner LEDs 54b. As the LED 54a, a red LED is used. In the heartbeat mode, the blue LED 54b represents one unit, and the displayed number is a number from 1-0 displayed between the inner LED 54b and the outer LED 54a. In addition, the blue LED 54b displays a number selected by the user in a game mode in which a lottery or the like is performed. The red LED 54a indicates 10 units in the heartbeat mode, and the displayed number is a number up to 1-0 displayed between the inner LED 54b and the outer LED 54a. In addition, the red LED 54a performs a cursor function for selecting a number to be selected in the game mode for lottery or the like. The LED lamp 38 not only performs the flash function in the safety light mode but also displays 100 units in the heartbeat mode.

3A is an initial standby state, in which there is no power input to the 24-pin connector 18 and a standby state in which power is not turned on.

3B is a state in which the charging power for the secondary battery 24 is supplied to the 24-pin connector 18 from the external charger and the charging for the portable device is not performed. At this time, the filling amount (90%) is indicated by the red LED 54a.

3C is a state in which the charging power for the secondary battery 24 is supplied to the 24-pin connector 18 from the external charger, and the charging power for the secondary battery of the external portable device is also simultaneously supplied through the USB connector 36. to be. The LED lamp 38 blinks to indicate that the secondary battery 24 is charged by 90%.

3D illustrates a state in which the main power is turned on by pressing the main key 16 while the rechargeable battery 24 is not supplied and only the secondary battery 24 is charged. In this case, the standby power is displayed. LED 1 blinks. Press and hold the main key (16) for standby mode-> safety light mode (blue LED flashes 1)-> heart rate mode (blue LED flashes 6)-> game mode (red LED flashes 6) The function mode is switched. At this time, when the finger is placed on the pulse detection button 46, the charge amount is displayed on the red LED 54a for 5 seconds. Press and hold the main key 16 to turn off the main power.

3E shows the safety light mode. As described above, the safety light mode is selected by pressing the main key 16, and the safety light mode is started by pressing the first function key 12 or the second function key 14. When the safety light mode starts, the LED lamp 38 flashes while emitting high brightness light (flash), and the red LED 54a and the blue LED 54b alternately flash. If you attach it to a bicycle or backpack in this state, you can use it as a safety light at night.

3F shows that the LED lamp 38 and the LEDs 54a and 54b blink while forming a certain icon or pattern by pressing the main key 16 in the safety light mode. The blinking icon or pattern is variously configured by combining the LED lamp 38 and the constituent LEDs 54a and 54b with the flashing status, the flashing order, the flashing speed, and the like. The user may use the first function key 12 or the second function key. According to (14), the icon or pattern can be changed while being selected sequentially.

3G shows the heart rate mode. Put your finger on the pulse detection button 46 in the heart rate mode to operate the heart rate mode.

3H shows that some LEDs blink each time the heartbeat beats while the heartbeat mode is in operation. At this time, it is preferable to make the buzzer 40 sound as well.

3I to 3K show that when a stable pulse is detected in the heartbeat mode, the pulse rate per minute is converted into the LED lamp 38 and the LEDs 54a and 54b. 3i shows 75 times per minute, 3j shows 110 times per minute and 3k shows 202 times per minute. 100 is displayed when the LED lamp 38 is turned on, and 200 is displayed when the LED lamp 38 is blinking.

3L shows the game mode. Depending on the program, 20 LEDs 54a and 54b, LED lamps 38, and keys 16, 12 and 14 can be combined to play various games. However, in FIG. 3L to FIG. At the beginning of the game, the red LED 54a flashes sequentially around the blue LED 54b and then lights up after stopping at the red LED of the random number. As an example, a lottery game in which a person who selects a blue LED 54b having the same number as the number of red LEDs 54a determined as a winner is illustrated.

FIG. 3m shows that when the pulse detection button 46 is touched in the game mode, the blue LED 54b is ready to be selected, and when the first function key 12 is pressed, the red LED 54a is sequentially selected from 1 to 0. It turns on and moves.

At this time, the game participant presses the second function key 14 when his red LED 54a is at the number selected by him, and lights up the blue LEDs 54b of the same number as shown in FIG. 3M. .

 In this state, the game starts when the pulse detection button 46 is touched, and the red LED 54a flashes several times sequentially as shown in FIG. 3O, and then one of the selected blue LEDs is shown in FIG. 3P. Stop at the number corresponding to. This way, the winner can be determined.

According to the present invention having the above-described configuration, not only can carry one device during leisure activities or outdoor activities, but also charge portable devices such as mobile phones, MP3 players, GPS receivers, moving distance measuring devices, DMB, PMP, etc. Can be used as a flashlight or safety at night, you can check your body condition by checking your heart rate, and you can play simple games such as breaks.

Claims (2)

In one housing that can be worn on a backpack or bicycle, a pulse sensor that can measure the pulse rate at any time during leisure activities, and can be used as a substitute for flash and safety during leisure activities, and when displaying the pulse rate by the pulse sensor High brightness LED lamp that can display 100 units of pulse rate, and 20 LEDs of the same color each 10 are displayed to display 10 units and 0 units of pulse rate detected by the pulse sensor in combination with the high brightness LED lamp. It includes an LED display, a secondary battery that can be charged from an external charger, and an external charge control circuit that can supply power of the secondary battery to a charger of another portable device, and output voltage of the secondary battery is DC. The high-brightness LED lamp, the pulse sensor, and the LED display under the control of the microcomputer by boosting by a DC / DC converter. Multi-function portable charger characterized in that the supply to the ray and the external charge control circuit. The method of claim 1, When the high brightness LED lamp is used as a safety lamp, the microcomputer flashes the LEDs arranged on the high brightness LED lamp and the LED display to form a predetermined icon or pattern.

Images