KR20140066010A - Charging and communication system in wireless for car - Google Patents

Abstract

The present invention relates to a contactless charger used in a vehicle and, more specifically, to a contactless charger for a vehicle capable of charging a portable terminal only with simple operation that the portable terminal is laid on a cellular phone holder by mounting a primary device for contactless charging on the cellular phone holder mounted on a vehicle and mounting a secondary device corresponding to the primary device on a cellular phone case. Also, the contactless charger for a vehicle skips an inconvenient process of connecting a power plug and a power line and charges the portable terminal by laying the portable terminal on the cellular phone holder.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging and communication system,

The present invention relates to a solid state charger for use in a vehicle. Particularly, since a primary device for non-contact charging is mounted on a cellular phone holder mounted on a vehicle, and a secondary device corresponding to the primary device is mounted on the cellular phone case, And more particularly, to a solid state charger for a vehicle.

The present invention also provides a vehicle-mounted contactless power supply device capable of charging a power supply in a form of simply placing the portable terminal on a cellular phone holder while omitting a troublesome process of connecting the power supply plug and the power supply line to each other, Charger.

2. Description of the Related Art Generally, a portable terminal holder for a vehicle is installed not only to charge a battery while operating a vehicle, but also to enable a user to easily perform a call while driving while holding a steering wheel by hand.

However, the conventional mobile phone terminal cradle always has to use the power jack and the power line to connect the cradle and the mobile phone terminal for charging the mobile terminal. In order to explain the problem of the conventional mobile phone terminal holder, general matters of the mobile terminal will be described.

Recently, as many mobile phones such as mobile communication terminal, IMT-2000 phone, smart phone, and iPhone are widely used, when the battery of the mobile phone is consumed, the user attaches the battery to the charger connected to the AC power source The battery is recharged and the charged battery is attached to the portable terminal.

Basically, the charger for a portable terminal includes an adapter for converting a household AC voltage (AC 220 / 110V) into a DC voltage and outputting it to a regulator; A regulator that applies a voltage to the charger through a household power cable and maintains an input voltage at a constant voltage; And a charging circuit for converting a DC voltage into a charging voltage and providing the battery as a battery attached to the charger.

A battery charging circuit for charging the cell with electricity from a current source includes: a variable resistor in parallel with the cell; a cell voltage detection device for detecting a current voltage value of the cell; And a comparator for comparing the current voltage value to a pre-set voltage value. The resistance value of the variable resistor is controlled in response to the temperature result so that it flows through both the cell by the current from the current source and the variable resistor as it is charged into the cell's capacitor. When the cell is fully charged, current is prevented from flowing through the cell to prevent overcharging.

The charger of the portable terminal senses the charging capacity of the battery using the voltage and temperature of the installed battery to prevent overcharging.

When a fully charged battery is installed in a wired type charger, the charger charges the battery for a period of time to detect a full charge according to a delta voltage or a temperature difference, thereby overcharging the battery to shorten the life of the battery. After the battery is installed, when the full charge flag is set, this battery voltage value and the battery temperature value are stored as the full charge setting value, and when the full charge flag is not set, the full charge voltage value and the temperature value The difference value between the detected voltage and the temperature is compared with a set reference value to determine a fully charged state of the mounted battery, and when the mounted battery is full charged, After the charge is completed, set the full charge flag, store the full charge voltage and temperature for a certain period of time , And the full charge voltage and the temperature are not updated after a lapse of a predetermined time. The charger reads the status of the next mounted battery, that is, the voltage and the temperature, and compares the full charge voltage and the temperature with each other to distinguish whether the battery is a fully charged battery or a battery to be charged. .

However, in the case of a wired type charger of a conventional portable terminal, the battery can be charged by attaching the battery by the contact type. However, recently, a system for charging the battery of the portable terminal with the wireless charger in a contactless manner has been introduced, and overcharge or over- It has not been provided.

In particular, the problem is further exacerbated in a portable terminal cradle used for charging and communicating with a mobile phone during operation of the vehicle as in the present invention.

First, the driver must always put his / her hand on the steering wheel and concentrate all the attention on the surroundings for the purpose of operation. If a situation occurs in which the user must hold the portable terminal by hand for a call, Can not be guaranteed.

Secondly, therefore, a cellular phone cradle is separately provided, and the cellular phone must be charged as well as being easily charged through the cradle. In the case of a cell phone cradle, the majority of users need to connect the cradle with the portable terminal .

Third, in the case of such conventional mobile phone cradle, all of the power supply and power lines are used for charging and making calls, and there is no alternative to prevent overcharging as well as troubles in use.

The present invention relates to a solid state charger for use in a vehicle. Particularly, since a primary device for non-contact charging is mounted on a cellular phone holder mounted on a vehicle, and a secondary device corresponding to the primary device is mounted on the cellular phone case, And more particularly, to a solid state charger for a vehicle.

The present invention also provides a vehicle-mounted contactless power supply device capable of charging a power supply in a form of simply placing the portable terminal on a cellular phone holder while omitting a troublesome process of connecting the power supply plug and the power supply line to each other, Charger.

The contactless charger for a vehicle according to the present invention comprises a support bar 20 protruding up to a certain height in combination with a fixing plate 10 fixed to a front panel of a vehicle, a support panel 20 fixed to an end of the support bar 20, (30), and a charging pad (= primary device) (100) attached to the supporting panel (30) in a size corresponding to the size of the supporting panel (30). When power is supplied to the charging pad serving as the primary device 100, the power is supplied to the battery 300 through the gender connection part 310 of the portable terminal 301, which is built in the case A of the portable terminal 301, The upper case 210b and the lower case 210a are engaged with each other so that the mobile terminal 301 can be folded and folded, And a terminal case (A) for covering the portable terminal.

The support panel 30 and the primary device 100 according to the present invention can be used to accommodate the primary device 100 on the inside of the support panel 30 so that the primary device 100, The primary device 100 and the secondary device 200 are connected to each other by the gender 200 of the terminal case A in which the secondary device 200 is installed in the portable terminal 301 to which the battery 300 is attached, When the mobile phone is connected to the connector 270, it detects the minute electric potential difference and recognizes the current and voltage standard information of the type of the portable terminal 301 (iphone, smartphone, general phone) (100) which is a non-contact charger main body which generates an induced electromotive force by ferrite of the secondary device (Gender) 200 through a coil and a ferrite by oscillating at a natural frequency after being switched to a mode; The battery 300 of the portable terminal 301 receives the induced electromotive force from the primary device (Pad) 100 through a coil and ferrite, converts the AC voltage to a DC voltage, and charges the battery to prevent rectification and overcharging. The charging state is indicated by the LED 250 and the RF frequency signal is transmitted to the primary device 100 so as to automatically shut off the charging of the battery 300 of the portable terminal 301 when the charging is completed And a secondary device (Gender) 200. The primary device (Pad) 100 is connected to the upper and lower cases 210b and 210a of the portable terminal with the portable terminal 301, When the device 200 is placed on the primary device 100, the ferrite of the secondary device 200 embedded in the upper case 210b of the portable terminal 301 or the lower case 210a, A fine electric potential difference is generated in the primary device (Pad) 100 by a magnet, and an RF frequency signal And the voltage and current of the portable terminal 301 are transmitted to the primary device (Pad) 100 through the call. When the minute potential difference is sensed, the mode is switched from the standby current mode to the energy generation mode, The electromotive force is controlled to be generated by a secondary device (Gender) 200 built in the upper and lower cases 210b and 210a of the portable terminal 301 and the upper and lower cases 210b and 210a of the portable terminal 301, (Gender) 200 installed in the main body 100 to the primary device (Pad) 100 at a predetermined distance from the upper portion of the main body 100 or charging the secondary device (Pad) 100, it is switched from the energy oscillation mode to the standby current mode to prevent overcharge by interrupting supply of voltage and current to the coil and ferrite. The lower cases 210b and 210a, The built-in secondary devices (Gender; 200 receives the induced electromotive force from the primary device (Pad) 100, which is the non-contact charging device, and recovers the induced electromotive force, low-pass filters (LPF) and regulates the LC component to detect the charged amount of the DC voltage The portable terminal 301 displays the charged state of the battery 300 of the secondary device (gender 200) connected to the battery 300 and the gender connector 270. If the charging is required, the Red LED is turned on, An LED 250 that is illuminated with an LED (or Blue LED); And a battery 300 of the portable terminal 301 are connected to a secondary device G 200 included in the case A of the portable terminal 301 and the charge voltage is supplied to the gender connection portion 310).

The charging pad, which is the primary device 100 according to the present invention, has a power supply jack for connecting a power line connected to a power plug of a vehicle. The supporting bar 20 includes a hinge The structure 21 is formed so that the portable terminal 301 mounted on the primary device 100 as the supporting panel 30 interlocks at a predetermined angle to adjust the viewing angle of the display panel: ), Which is horizontally projected horizontally, is formed at the lower ends of the left and right ends of the primary device 100 to prevent the portable terminal 301 from falling down.

In addition, the phone receiver bar 40 allows the mobile terminal 301 with the battery 300 to determine the mounting position of the terminal case A having the secondary device (Gender) 200 incorporated therein, By positioning the tile in place, the charging efficiency is maximized.

A side wing fastening block 35 protruding from the rear surface of the primary device 100, which is a support panel 30, according to the solid state charging device for a vehicle of the present invention; A wing body 51 coupled to the fastening block 35 and a wing body 51 extending in the left and right direction from the wing body 51 and extending in a rounded shape to the front of the primary device 100, A side support 50 including a side wing 52 formed to surround the front of the main body 100 so as to allow the mobile terminal 301 to receive a stable support in the left and right direction, 30 is connected to a power plug formed on a cellular phone holder of a vehicle so as to receive a current applied to a power supply line communicating with a power plug of the vehicle. The fixing plate 10 is connected to a front panel Or the attracting plate handle 11 is formed and adsorbed.

In addition, an LED lamp 60 for detecting the charged amount is formed on the front side of the primary device 100 according to the vehicle solid-state charger of the present invention.

The present invention is advantageous in that the charging can be completed only by the operation of placing the portable terminal on the primary device while eliminating the troubles of connecting the power source and the power line in charging the portable terminal.

In addition, the present invention is mounted on a movable vehicle, and even when there is a lot of fluctuation during operation, it is precisely positioned on a cell phone holder, and the induction electromotive force is transmitted to the secondary device through the primary device. It has the advantage of being able to improve.

Further, the present invention is advantageous in that since the configuration of the secondary device is mounted on the cellular phone case, all existing mobile phones can be used to charge the terminal with a non-contact point.

FIG. 1 is an exploded view of a mobile phone holder and a portable terminal of a contactless charging type according to the present invention,
2 is a view showing a state where a mobile phone is mounted on a cellular phone holder for a vehicle according to the present invention,
3 is a block diagram illustrating an internal system of a primary unit and a secondary unit of the present invention,
4 is an exploded view of a mobile phone case used in the present invention,
FIG. 5 is a front view showing a main part of the cellular phone holder of the present invention,
Fig. 6 is a rear view showing the cellular phone cradle of Fig. 5,
Fig. 7 is a left side view showing the cell phone receptacle recess of Fig. 5,
Fig. 8 is a right side view showing a substantial part of the cellular phone cradle of Fig. 5,
FIG. 9 is a plan view showing a substantial part of the cellular phone holder of FIG. 5,
Fig. 10 is a bottom view showing the main part of the cellular phone holder of Fig. 5;

The present invention relates to a solid state charger for a vehicle.

Therefore, the construction and operation of the present invention will be described in detail with reference to FIGS. 1 to 10. FIG.

1, a supporting bar 20 is fixed to an end of the supporting bar 20 by being coupled with a fixing plate 10 fixed to a front panel of the vehicle, And a charging pad (= primary device) 100 which is closely attached to the supporting panel 30 in a size corresponding to the supporting panel 30. When electric power is supplied to the charging pad, which is the primary device 100, There is a secondary device (Gender) 200 built in the case A of the portable terminal 301 and electrically connected to the battery 300 through the gender connection part 310 of the portable terminal 301, And a terminal case A covering the mobile terminal 301 by interposing the upper case 210b and the lower case 210a into engagement with each other so as to surround the rear surface and the side surface except for the front side. Accordingly, they are combined to charge the power of the portable terminal wirelessly in the vehicle.

That is, the present invention has a fixing plate 10 attached to the front panel of the vehicle. The fixing plate 10 is used to attach to the front panel of the vehicle and to form the supporting bar 20 projecting to the top of the front panel. When the support bar 20 is protruded and the support panel 30 is fastened to the upper end thereof, the portable terminal 301 mounted on the support panel 30 can maintain the call while charging.

The following is a brief description of the charging method. As shown in FIG. 1, another panel is laid out in front of the support panel 30. The primary device 100, which is a charging pad, has a coil inside which current can be energized. A current flows through the coil, and the electric field of the current flowing in the coil generates an induced electromotive force in the coil of the corresponding secondary device 200. [ The battery 300 connected to the secondary device 200 by the induced electromotive force is charged. The primary device 100 of the portable terminal 301 used in the present invention operates through a current generated from the battery of the vehicle, which will be described later in more detail. That is, the primary device 100 of the present invention is mounted such that the current supplied from the vehicle is always energized through the separate power source and power line.

The advantages of the present invention are as follows.

The conventional portable terminal cradle must always be able to connect the battery of the vehicle and the battery 300 of the portable terminal by using the power line (= power line) even when the portable terminal cradle is mounted on the front panel of the vehicle. If this power line is not fitted, it will not be charged. Therefore, the driver of the vehicle must perform a separate operation for inserting the power line (= power line) into the portable terminal 301 after mounting the portable terminal 301 on the mount. However, the present invention can simultaneously induce conversation and charging only by simply placing the portable terminal 301 on the base of the portable terminal 301.

Next, the secondary device 200 of the present invention will be briefly described with reference to FIG. The secondary device (200) of the present invention is an essential device that can charge electric power corresponding to the primary device (100), and is inserted inside the terminal case (A).

In the case of the portable terminal 301, a variety of manufacturers manufacture the portable terminal 301, and all the portable terminal 301 manufacturers do not implement the portable terminal 301 in consideration of the non-contact communication and charging these days. This non-contact charging and communication is performed by the primary device 100 generating an induced electromotive force in the coil of the secondary device 200 in addition to the secondary device 200 connected to the battery 300 of the portable terminal 301, Is also necessary. Therefore, in order to enable the portable terminal 301 of the present invention to be used in any of the portable terminals 301, the portable terminal 301 is protected while the terminal case A ).

As shown in FIG. 1, the portable terminal case A of the present invention, which can be manufactured in various forms, is manufactured such that the upper case 210b and the lower case 210a can be engaged with each other. It can only be produced according to the outline of the product implemented by the existing terminal manufacturing company. For example, it could be the gelix series of iPhone and Samsung Electronics Co., Ltd. Of course, it can be various smart phones as well as all mobile terminals. It can be a pad type terminal such as an iPad and a gel pad, or it can be a netbook or a notebook.

A more detailed configuration and operation of the present invention will now be described. It is preferable that the supporting panel 30 and the primary device 100 according to the present invention are constructed such that the primary device 100 is housed inside the supporting panel 30 and the primary device 100 Do.

Brief Description of the Drawings Figure 1 shows a cradle of two embodiments. 1 is an exploded perspective view showing an embodiment in which the primary device 100 and the support panel 30 are separated from each other. In the case of FIGS. 2 and 5 to 10, the primary device 100 is a supporting panel 30 And the supporting panel 30 is the primary device 100. The primary device 100 is an integral type of the primary device 100, The support panel 30 is a panel for supporting the portable terminal 301. The primary device 100 is a panel having electronic components embedded therein for charging electric power and exchanging data. Therefore, combining them together is also effective in reducing volume. The present invention is also claimed as an example in which the support panel 30 and the primary device 100 are provided separately and in close contact, as in the case of FIG. 1, and the primary device 100, as in FIGS. 2 and 5-10, Is provided on the inside of the support panel (30) so as to produce an integrated primary device (100).

In the present invention, the configuration and operation of the primary device 100 and the secondary device 200 responsible for the charging will be described. The primary device 100 and the secondary device 200 of the present invention are devices that maintain communication with each other while preventing overcharging and achieving effective charging.

Explain its function.

When the secondary device 200 is connected to the battery 300 of the mobile phone by the gender connector 270, the gender 200 is connected to the main body 1 of the wireless charger, The primary device Pad 100 as a wireless charger senses a minute electric potential difference and transmits the RF signal from the gender 200 to the type of the mobile phone And the voltage / current capacity and switches from the standby current mode to the energy oscillation mode. The magnetic flux permeability of the induction magnetic field of ferrite of the secondary device (Gender) 200 through the ferrite magnet of the primary device (Pad) (100) is calculated by applying the basic principle of the electromagnetic field (250 to 350 KHz) with good permeability to generate an electromotive force from the induced magnetic field formed through the ferrite. This causes a current to be charged by the portable terminal (iPhone, smart phone, DMB phone, etc.) equipped with the battery 300 connected to the secondary device (Gender) 200 via the gender connector 270.

3 and 4, a cellular phone case and a wireless charger including a gender 200 according to the present invention are configured such that a secondary device (Gender) is attached to a portable terminal 301 to which a battery 300 is attached When the portable device is placed on the primary device (Pad) 100 which is a non-contact charger in a state of being connected by the gender connector 270 of the built-in mobile phone case, the primary device senses a minute potential difference, (iphone, smartphone, general phone) and the current and voltage standard information, and is switched from the standby current mode to the energy oscillation mode, oscillates at a natural frequency, and is transmitted to the secondary device (G 200) through a coil and a ferrite ) Ferrite to generate induced electromotive force. Also, the secondary unit may receive the induced electromotive force from the primary unit (Pad) 100 through a coil and a ferrite, convert the AC voltage into a DC voltage, rectify it, and charge the battery to prevent overcharging. And transmits an RF frequency signal to the primary device (Pad) 100 to automatically charge the battery of the portable terminal when the battery is fully charged. The secondary device 200 includes a lower case 210a for covering a portable terminal and a lower case 210a for covering the portable terminal and having a gender connector 270 connected to the battery of the portable terminal on the upper or lower case, And an upper case 210b of a cellular phone that covers the portable terminal by engaging with the upper case 210a.

1 to 4, the gender connector 270 is installed at the center or one side of the lower surface of the upper case 210 of the portable terminal or the lower case 210b of the portable terminal, Is connected to the cell phone battery through the battery charger 310 and is used for charging.

Will be described in more detail.

The primary pad 100 may be configured such that the mobile phone upper case 210b to which the portable terminal 301 is attached and the secondary device 200 built in the lower case 210a are connected to the primary A minute potential difference is generated in the primary device Pad by the ferrite magnet of the secondary device built in the upper case 210b or the lower case 210a of the portable terminal And transmits the type and voltage and current of the mobile phone to the primary device through the RF frequency signal from the gender. When the minute potential difference is detected, the mode is switched from the standby current mode to the energy generation mode, And controls the induction electromotive force to be generated in the secondary device (Gender) 200 built in the upper and lower cases of the mobile phone. A secondary device (Gender) 200 built in the upper and lower cases of the mobile phone is separated from the primary device (Pad) 100 by a predetermined distance during charging, And transmits the RF frequency signal for charge cutoff to the primary device (Pad).

As a result, the primary unit is switched from the energy oscillation mode to the standby current mode through the signal to prevent overcharging by interrupting the supply of voltage and current to the coil and ferrite.

The secondary device (Gender) 200 incorporated in the upper case and the lower case of the portable terminal receives the induced electromotive force from the primary device (Pad) 100, which is the non-contact charging device, and recycles, (LPF) and regulates the LC component to detect the charged amount of the DC voltage and displays the battery charging state of the secondary device (gender) 200 connected to the mobile phone battery and the gender connector. The Red LED lights up when charging is required, and the Yellow LED (or Blue LED) lights up when it is fully charged. Also, the wireless charger according to the present invention uses a DC voltage of 12-18 V and a current of 1 to 2A as an input power source, and generates a sufficient amount of power from the primary device (Pad) To generate the induced electromotive force, the circuit coil of the copper foil made of a double-sided or multilayer (four or more layers) printed circuit board (PCB) is raised to a working standby voltage of 50 to 100 V .

The secondary device Gender 200 attached to the portable terminal is connected to the battery 300 of the mobile phone by the gender connector 270. The secondary device 200 is connected to the primary device The pad 100 generates a small amount of potential difference by the ferrite magnets in the secondary device 200. When the potential difference is detected, (Induction current, induction voltage) generated by the ferrite of the secondary device (Gender) 200 through the ferrite of the primary device (Pad) by oscillating the secondary device (frequency range of 250 to 350 KHz) .

The wireless charger is an optimal coil turn for charging a mobile terminal (mobile communication terminal, iPhone, smartphone, DMB phone, tablet PC, camera, game machine etc.) with large capacity battery (2000mA or more) L value) ratio. The wireless charger supplies more than 800mA of current for the first time.

A secondary device 200 attached to a portable terminal (e.g., a mobile phone or a smartphone) in which the battery 300 is installed is placed on a primary device 100 that is a non-contact charging device, (Pad) 100 is switched from the standby current mode to the energy oscillation mode (frequency oscillation state). The electromotive force generated from the ferrite of the primary device (Pad) 100 is absorbed from the optimized circuit coil through the ferrite of the secondary device (Gender) 200 and adjusted to a constant current under the constant voltage, A voltage is transferred to the battery 300 of the portable terminal connected to the gender 200 and charged.

When the secondary device (Gender) 200 attached to the portable terminal is separated from the primary device (Pad) 100 as a non-contact charging device by a predetermined distance or more, the primary device (Pad) 100 generates a potential difference , The mode is switched from the energy oscillation mode (frequency oscillation state) to the standby current mode.

In order to efficiently generate the induction magnetic field, the primary pad 100 of the wireless charger is made of a double-sided, multi-layer PCB and a special shape of the coil is used to increase the magnetic flux permeability of the induction magnetic field. Ferrite was molded and used. The induction magnetic field transmitter (ferrite) in the primary device (Pad) 100 air-cools the heat generated in the coils and ferrite with the Al cooling plate due to the generation of the induction magnetic field.

The primary device (Pad) 100, which is a wireless charger, forms two ferrite beads on each of the Al cooling plates (a form in which the EMC core is miniaturized and mounted on a PCB (printed circuit board), noise blocking effect) It forms a PCB coil on the ferrite bead and keeps 0.5-1mm interval (minimized) with the product board.

The mobile phone case having the gender 200 senses the current charging rate of the battery and transmits an RF frequency signal from the gender 200 to the non-contact charger main body (Pad) 100 when the charging is completed. The contact charger main body (Pad) 100 operates in the standby power mode (standby power state), and the LED indicates the battery charging state of the cellular phone (electronic device). It also features a micro USB terminal that can be charged to a computer and USB, and has an electronic memory chip function.

This product can charge the iPhone (2400mA), charge more than 2 iPhones simultaneously, and can charge the iPhone and the general phone. It is possible to charge the simultaneous charge of multiple electronic devices in one primary device (Pad) (Gender) 200 can be used to charge the portable terminal during the charging operation. By using the charger of various models, the charging efficiency (energy efficiency) can be improved by the unique design of the inner coil and the applicable parts It reduces the protection of the product and energy loss by adjusting the charge amount (charging speed) according to the capacity and the charge amount of the battery. It also provides the function of judging the existence of the product on the pad and the function of controlling the energy emission when there is no product.

The gender 200 is mounted on a mobile phone case in a compact size and is easy to carry around. It is switched to a standby power source when the battery is fully charged. The system operates on its own pad with its own gender and cap. ~ 350kHz), and it works after mutual confirmation, so it prevents duplication.

After recognizing the product by gender product, we select the working conditions for each product and proceed with the work. For product classification method, we use unique frequency recognition method for each product. The non-contact charger product has a function to generate and reject high frequency which pests do not like, and it provides detection and power-off function when the product is heated.

4 is a configuration diagram of a mobile phone case and a wireless charger including a gender and a gender connector according to the present invention.

The mobile phone case (smartphone case) includes a gender and a gender connector. After the smartphone is mounted in a smartphone case including a gender, a secondary device (gender) attached to the smartphone case is connected to the non- Charge the induction electromotive force on the primary device (Pad) which is the main body of the Pad.

A plurality of mobile terminals (mobile phone, smartphone iPhone, etc.) 301 are attached to the gender connection part 270 of the mobile phone case A via a gender connection part 310, and a gender Contact charging unit to the secondary unit (Gender) 200 as a non-contact charging unit by using the electromagnetic induction unit 200 as a non-contact charging unit, The battery of the cellular phone 301 is charged through the gender connector 270. [

The gender 200 embedded in the bottom surface of the mobile phone case A has a cell phone 301 such as a smart phone or an iPhone and a gender connector 270 in a close contact manner, And is used in connection with the connection portion 301. The size of the gender 200 is 30 mm (width) x 40 mm (length) x 10 mm (height) for the iPhone, and the size of the gender 200 for a general phone is as small as possible It is designed to be 27mm (width) x40mm (length) x10mm (height) to be possible. The secondary device (Gender) 200 contained in the mobile phone case (A) uses the LED to display the charging status using red (red) or full (yellow) charging using the induced electromotive force.

The primary pad 100 as the non-contact charger minimizes the standby power to prevent heat generation at the approaching portion, so that the secondary device attached to the portable electronic device (such as a mobile phone or a smartphone) ) 200, and then generates an induced electromotive force by oscillating at a natural frequency by the coil and the ferrite.

The primary pad 100 as the non-contact charging device has a frequency adjustment range of 250 to 350 KHz and a secondary device 200 attached to the mobile phone case in the primary device 100 When the product is placed on, it is electrically turned on, and when the product placed on the primary device (Pad) 100 is out of a certain distance (Out), it provides an electrically Off function.

A primary device (Pad) 100 as a main body of a wireless charger has a secondary device Gender (A) when the cell phone 301 on which the battery 300 is mounted is in close contact with the cell phone case A 200) product is placed on the primary device (Pad) 100, the presence or the type of the mobile phone is detected by sensing a minute potential difference, and the mode is switched from the standby current mode to the energy generation mode, and an induced electromotive force is generated through the ferrite. Two control circuits (CPU function) control two coils.

The primary device (Pad) 100, which is a wireless charger, uses an overcharge prevention circuit according to the capacity of the battery of the mobile phone to prevent excessive charging due to overvoltage and overcurrent to adjust the maximum charging amount, And an overcharge protection function is provided by a secondary device (Gender) 200 to which a cell phone 301 equipped with the battery 300 mounted thereon is attached.

3 is an internal system configuration diagram of a gender and a wireless charger included in a smartphone case according to an embodiment of the present invention.

The communication unit 101 of the primary device 100 can recognize the type of the mobile phone (iphone, smartphone, general phone), the current and voltage (voltage), and the like when the gender attached to the mobile phone case is placed on the primary device (Pad) 100, which is a non-contact charger, through an ACL (Asynchronous ConnectionLess) link for data communication of the Bluetooth protocol. In order to block charging when the battery charging voltage of the mobile phone is full, Signal to the primary device (Pad) 100.

The control unit 102 of the primary device 100 receives the type of the mobile phone and the current and voltage standard information in the 2.4 GHz ISM band using the Bluetooth protocol with the primary device Pad which is the non-contact charger from the communication unit 101 Controls the control circuit 110 to operate in the energy oscillation mode from the standby current mode to generate the induced electromotive force or controls the control circuit 110 when the RF frequency signal is received in order to cut off the charge when the mobile phone battery is fully charged And operates in the standby current mode from the energy oscillation mode to interrupt the generation of the induced electromotive force.

The control circuit 110 of the primary device 100 may be configured such that the secondary device (Gender) 200 built in the mobile phone case with the portable device mounted thereon is placed on the primary device (Pad) If a potential difference is detected and a transition is made from the standby current mode to the energy generation mode or when the secondary device (Gender) is separated by a certain distance or more, the mode is switched from the energy generation mode to the standby current mode, Control the function.

The control circuit 110 of the primary device 100 controls the secondary device 200 installed in the mobile phone case to be spaced apart from the primary device Pad by a predetermined distance during charging, When receiving the RF frequency signal for charge cutoff from the device (Gender) to the primary device (Pad), the mode is switched from the energy oscillation mode, which is the charging state for generating the induced electromotive force, to the standby current state mode, Prevent overcharge.

When the secondary device (Gender) 200 built in the mobile phone case is placed on the primary device (Pad) 100 as the wireless charger, the primary device (Pad) is connected by the ferrite magnet of the secondary device (Gender) The control circuit 110 immediately oscillates at the natural frequency through the LC resonance circuit 130 and outputs the induced electromotive force through the coil and the ferrite to the secondary device Gender ) Coil and a ferrite.

In the state where the battery of the mobile terminal is connected to the secondary device 200 via the gender connector 270, the secondary device Gender 200 built in the mobile phone case is connected to the primary device Pad When the secondary device (Gender) 200 is separated from the upper device 100 during charging, a potential difference occurs. After sensing the amount of the current of the primary device (Pad) 100, To the standby current mode again to prevent the induced electromotive force from being generated to prevent the energy loss.

The AC power connection unit 120 receives AC power from an external AC power source.

The LC resonance circuit 130 is connected to the gender 200 of the cellular phone case through a gender connector 270 connected to the battery 300 of the cellular phone, The ferrite magnets of the primary device (Pad) 100 and the ferrite magnets of the secondary device (Gender) 200 are placed on the primary device (Pad) 100, which is a wireless charger, (250 to 350 kHz frequency range) under the control of the control circuit 110 immediately after detecting the potential difference.

The induction magnetic field transmission units (ferrites) 150 and 160 generate an induction magnetic field by the ferrite of the primary device (Pad) 100 when oscillated at a natural frequency from the LC resonance circuit 130, Ferrite generates induced electromotive force.

The cooling plates 140a and 140b air-cool the coils and the heat generated from the ferrite by induction magnetic field generation.

The coils 170a and 170b wind on the ferrite of the induction magnetic field transmission units 150 and 160 so that an induced electromotive force is generated according to the number of windings to which the current is applied.

The secondary device (Gender) 200 incorporated in the mobile phone case includes an induction magnetic field receiving unit (ferrite) 210, a rectifying circuit 220, a charging circuit 230, a charged amount sensing circuit 240, an LED 250, Prevention circuit 260, and a Gender connector 270.

The gender 200 embedded in the mobile phone case is connected to the battery 300 of the mobile phone through the gender connector 270 and the secondary device 200 built in the mobile phone case is connected to the wireless charger 1 The secondary device Gender 200 oscillates at a natural frequency from the primary device 100 by the ferrite magnets to form an induced magnetic field and to generate an induced electromotive force The induced voltage is converted into a DC voltage by the rectifier circuit 220 and is rectified by the regulator and then is charged by the charging circuit 230 The overcharging prevention circuit 260 prevents the overcharge of the overcharge prevention circuit 260 and supplies the charge voltage to the threshold charge voltage through the gender connector 270 to the threshold charge voltage, And charges the battery 300 of the portable terminal.

An induction magnetic field receiving unit (ferrite) 210 is oscillated at a natural frequency from a primary device (Pad) 100 and then transmitted from an induction magnetic field transmitting unit (ferrite) 150, 160 of the primary device Pad to a secondary device Gender, (Induction current, induction voltage) with the coil wound on the ferrite of the induction coil.

The rectifier circuit 220 rectifies the voltage generated by the induction electromotive force by using the bridge rectifier circuit to apply the AC voltage corresponding to the induced electromotive force received by the coil and the ferrite in the induction magnetic field receiving unit 210, LC frequency components are low-pass filtered (LPF) and generated by a regulator with a DC voltage (for example, DC 4V).

The charging circuit 230 receives the rectified DC voltage from the rectifying circuit 220 and regulates a constant current to charge the DC voltage and provides the charged DC voltage to the overcharge prevention circuit 260.

The charging amount sensing circuit 240 senses the charging amount of the DC voltage charged from the charging circuit 230 and measures the charging state in real time.

The LED 250 is a secondary device (gender) 200 built in a mobile phone case that receives the charged amount of the DC voltage to be charged from the charged amount sensing circuit 240 and charges the primary device (Pad) And the red LED is turned on when charging is necessary, and the yellow LED (or blue LED) is turned on when the battery is fully charged.

The overcharge prevention circuit 260 receives the charged voltage from the charging circuit 230 and prevents the overcharge due to overvoltage and overcurrent when the charging voltage of the present battery reaches the preset maximum charging reference voltage, The battery 300 of the portable terminal automatically stops the generation of the induced electromotive force in order to prevent the battery from being overcharged by blocking the supply of voltage to the battery through the control unit 261 and the communication unit 262 when the battery is fully charged. Pad 100 to charge and shut off the RF frequency signal.

At this time, the primary device (Pad) 100, which is a solid state charger, switches from the energy generation mode to the standby current mode upon receiving the RF frequency signal for charge cutoff from the communication unit 261 of the gender 200 The supply of voltage and current to the coils and the ferrite of the contactless charger (Pad) 100 is cut off and the generation of the induced electromotive force to the gender 200 is blocked, Prevent overcharging by shutting off the supply.

The control unit 261 is connected to the overcharge prevention circuit 260. When the gender attached to the mobile phone case is placed on the primary device Pad which is a non-contact charger, the control unit 261 controls the type of the mobile phone (iphone, smartphone, Current and voltage specification information is transmitted to the primary device (Pad) 100, which is a non-contact charger, through an ACL (Asynchronous Connectionless) link for data communication of the Bluetooth protocol of the communication unit 262, The RF frequency signal is transmitted so as to block the charging due to the induction electromotive force.

The communication unit 262 of the gender 200 attached to the mobile phone case transmits the type of the mobile phone and the current and voltage specification information in the 2.4 GHz ISM band using the Bluetooth protocol with the primary device which is the non- Or transmits an RF frequency signal to the primary device (Pad) 100 in order to cut off the charge when the mobile phone battery is fully charged.

The Gender connector 270 connects the secondary battery 200 of the mobile phone case with the battery 300 of the portable terminal such as a mobile phone or a smartphone and transmits the charging voltage to the gender connection unit 310 ).

The battery 300 of the portable terminal is charged in real time to the secondary device 200 by the induced electromotive force generated from the primary pad 100, The DC voltage is charged in real time via the Gender connector 270 and the Gender connector.

The primary device (Pad), which is a wireless charging body, senses the current and voltage information of the mobile phone type (iPhone, Galaxy phone, general phone) and the battery according to the frequency when detecting the oscillation signal (potential difference detection) in the initial standby current state.

The battery of the iPhone (A) shows 2400mA, the battery of the smartphone (Galaxy phone) (B) is 1500mA and the capacity of the cell phone (C) is 800mA (DC 3.7V) ) 100 detects the presence of a mobile phone when an oscillation signal (potential difference is detected) in the initial standby current state of the primary device (Pad) 100, which is the main body of the solid state charger, By the protocol, the mobile phone confirms the required current and voltage of the battery type, and charges it by the induced electromotive force in the energy oscillation mode.

For example, the current supply over time is adjusted to 500mmA for 10 seconds or more for the iPhone (A phone), 400mmA for the Galaxy phone (B phone), and 300mmA for the general phone (C phone).

The initial iPhone of 700mmA is a setting for charging, and the value may vary depending on the coil.

When there is no product during the oscillation of the primary device (Pad) 100, which is a wireless charger, the standby mode is changed to the standby current state again. The mobile phone equipped with the gender 200 is adjusted to the standby current mode when the mobile phone battery is fully charged.

When the portable terminal with the battery is separated from the primary device Pad 100 during the charging process by the secondary device 200 built in the mobile phone case connected through the gender connector 270, Pad 100 senses a potential difference and then is switched from the energy generation mode to the standby current mode by the control circuit 110 to cut off the current and power supply to the coil and ferrite to prevent induction electromotive force generation do.

Thereafter, when a secondary device (Gender) 200 built in the mobile phone case is placed on the primary device (Pad) 100, the primary device (Pad) 100, which is a noncontact charging device, It is switched to the energy oscillation mode and oscillates the natural frequency in the frequency range of 250 to 350 KHz to generate the induced electromotive force through the coil and the ferrite.

The functional description of the primary device 100 and the secondary device 200, in which current is charged to the inside of the terminal, is described above. Next, detailed embodiments of basic components forming the cradle of the present invention will be described.

In the present invention, it is preferable that the charging pad, which is the primary device 100, has a power plug for connecting a power line connected to the power plug of the vehicle. The electric field generated in the primary device 100 can generate an induced electromotive force by using a contactless point to the secondary device 200. The electric current to be directly supplied to the primary device 100 is supplied to the power source and the power line = Power line). Therefore, although not shown in FIG. 2, a separate power source jack should be formed in the primary device 100. [ Of course, in the case of the power source jack, it is also possible to form the power source in the support bar 20 or the fixed plate 10 of the cradle and to energize the coil and the current of the primary device 100 through the line.

The support bar 20 has a hinge structure 21 rotatable on one side so that the portable terminal 301 mounted on the primary device 100 as the support panel 30 interlocks at a predetermined angle, Adjust the viewing angle of the panel. In the case of the supporting bar 20, the fixing plate 10 is coupled in the direction of the front panel of the vehicle and the primary device 100 is fastened in the other direction. At this time, the portable terminal 301 of the present invention is mounted on the primary device 100 in a state where it is inserted into the terminal case A. In the case of the driver, the angle of view looking at the terminal case (A) is varied while driving according to the habit. If the primary device 100 is always positioned at a fixed angle from a fixed position, all drivers must ignore their habits and look at the mobile terminal at the same angle.

In order to solve this problem, in the present invention, a hinge structure (21) is applied to one side of the support bar (20) so that the viewing angle of the primary device (100) at the end can be adjusted. It is also possible to form the two hinges vertically raised in the fixing plate 10 as shown in FIGS. 1 and 2 and to connect the hinge to the end of the supporting bar 20 to couple with the hinge. Alternatively, the angle of view of the primary device 100 can be adjusted by applying a general hinge structure 21, which has been widely used.

In the present invention, a phone support bar (40) protruding horizontally forward is formed at the lower ends of both left and right ends of the primary device (100) as the support panel (30) to prevent the portable terminal (301) from falling off. A view angle for viewing the portable terminal 301 on which the primary device 100, which is the support panel 30, is erected is also used for a driver who intends to maintain an upright angle. When the primary device 100 is erected, the portable device 301 mounted thereon must be erected as well. This is because the portable device 301 falls below the primary device 100 in the interior of the vehicle receiving gravity vertically . In order to prevent this, a phone support bar 40 protruding horizontally from the lower end of the front side of the primary device 100 is formed to prevent the mobile terminal 301 from falling down. The angle of view can be adjusted at a certain angle as the support bar 20 is pivoted through the hinge structure 21 while the portable terminal 301 is mounted on the upper portion of the primary device 100. At this time, The phone receiver bar 40 supports the lower end of the portable terminal 301 so that the phone receiver bar 40 can maintain the fixed position without falling to the lower end.

In addition, the present invention adopts the following configuration with the same purpose as that of the above-described phone receiving bar (40). That is, a side wing fastening block 35 formed in a protruding shape is formed on the rear surface of the primary device 100, which is the support panel 30, and a wing body 51 coupled to the fastening block 35, And a side wing (52) extending from the wing body (51) in the left and right direction and extending in a rounded shape to the front of the primary device (100) so as to surround the front of the primary device 50 are formed. This allows the portable terminal 301 to receive a stable support in the left and right direction.

This is to prevent the driver from falling in the left direction and the right direction of the primary apparatus 100 when adjusting the viewing angle of the portable terminal 301 by holding the primary apparatus 100 while rotating it. This structure is illustrated in detail in the six-sided view of the illustrated FIGS. 5 to 10, wherein the rear surface of the primary device 100, which is the support panel 30, is provided with a protruding locking block 45 as shown. The side support tool 50 of the present invention is fastened to the fastening block 35. The side support tool 50 of the present invention is constructed such that the wing body 51 is positioned at the center of the wing body 51, It is a shape that prevents the arm from wrapping round in direction.

The wing body 51 is fastened to the fastening block 35 of the primary device 100 and the side wing 52 extending from the wing body 51 to the left and right side of the wing body 51, It is to wrap the front. If the portable terminal 301 is mounted on the primary device 100, the side wing 52 covers a part of the side surface and the front surface of the portable terminal 301 to prevent the portable terminal 301 from falling down. The end of the side wing (52) is formed with a rounded bent portion (53) so that the user does not get injured even if he touches the side wing (52). Of course, the bending portion 53 improves the aesthetics of the aesthetic appearance of the side wing 52. When the portable terminal 301 is placed, the side wing 52 can cover the portable terminal 301 by its elastic force .

In the present invention, the two embodiments have been described with reference to the drawings. That is, in the embodiment shown in FIG. 1, the charging pad and the support panel 30 are separated from each other. On the contrary, in the embodiment shown in FIG. 2 to FIG. 10, the primary device 100, which is the charging pad, and the support panel 30 are integrally formed.

In the present invention, it is an invention for achieving charging to a non-contact point through the secondary device 200 of the terminal case A corresponding to the primary device 100. [ Therefore, there is no inconvenience that the primary device 100 and the secondary device 200 are connected to each other by a power line or that the portable terminal 301 is connected to a power line. In the embodiment of FIG. 1, the support panel 30 and the charging pad, which is the primary device 100, are separately provided, so that the primary (100) The power supply line must be connected to the device 100.

On the other hand, in the embodiment of FIGS. 2 to 10, since the primary device 100 and the support panel 30 are integrally formed, it is necessary to form a power source on the support panel 30 and connect the power line. That is, the support panel 30, which is the primary device 100, is connected in line with a power plug formed on the cellular phone base A for the vehicle so as to receive the current applied to the power line connected to the power plug of the vehicle. Since the primary device 100 is the support panel 30, the power source plug is directly formed on the support panel 30. [

Also, as shown in the drawings of the present invention, it is preferable that the fixing plate 10 is attached to the front panel of the vehicle by using a double-sided tape or by forming a gripping plate handle 11 to be attracted and fastened. That is, the double-sided tape can be adhered to the bottom surface of the fixing plate 10 and can be tightly fixed to the front panel of the vehicle. Also, a suction plate is formed at the lower end of the fixing plate 10, and a suction plate knob 11 capable of improving the suction force by interlocking the suction plate is formed, so that the suction plate can be fastened to the front panel. In the case of this embodiment, since it is used in many forms in the past, it can be easily adopted.

Finally, on the front side of the primary device 100, an LED lamp 60 is formed on one side to indicate the charged amount. An LED lamp 60 may be formed on one side of the supporting panel 30 as a primary base unit so that the driver can be informed of the full charge through lighting of the lamp. As described above, the secondary device 200 of the present invention allows the user to know whether electric power is charged through a separate LED. However, in some cases, the LED lamp 60 can be formed on the primary device 100 so as to display a full image. The manner of operation is in accordance with the communication method of the primary device 100 and the secondary device 200 described above.

10; A fixing plate 11; Suction plate handle
20; Support bar 21; Hinge structure
30; Support panel 40; Phone bar
50; Side supports 51; Wing body
52; Side wing 60; LED lamp
100: primary device (PAD) 110: control circuit
120: AC power connection part 130: LC resonance circuit
140a, 140b: cooling plate 150, 160: induction magnetic field transmitter (ferrite)
170a, 170b: coil 200: 2
Gender
211: mobile phone case 210: induction magnetic field receiving unit (ferrite)
220: rectifier circuit 230: charging circuit
240: charge detection circuit 250: LED
260: Overcharge prevention circuit 261:

Claims (12)

A support panel 30 fixed to an end of the support bar 20, a support panel 30 connected to the support panel 20, And a charging pad (= primary device) 100 that comes in close contact with a size corresponding to the size of the charging pad.
When power is supplied to the charging pad serving as the primary device 100, the power is supplied to the battery 300 through the gender connection part 310 of the portable terminal 301, which is built in the case A of the portable terminal 301, (Gender) 200,
And a terminal case (A) covering the back side and the side surface of the portable terminal (301) except for the front side and the upper case (210b) and the lower case (210a) So that the electric power of the portable terminal is charged by the vehicle in a wireless manner.
The method according to claim 1,
The support panel (30) and the primary device (100)
Characterized in that the primary device (100) is housed inside the support panel (30) to form an integrated primary device (100).
3. The method of claim 2,
The primary device 100 and the secondary device 200,
When the portable terminal 301 with the battery 300 is connected to the gender connector 270 of the terminal case A in which the secondary device 200 is installed, A primary device (Pad) 100 which is switched to an oscillation mode and oscillates at a natural frequency to generate an induced electromotive force by ferrite of the secondary device (Gender) 200 through a coil and a ferrite;
The battery 300 of the portable terminal 301 which receives the induction electromotive force from the primary device 100 through the coil and the ferrite to prevent overcharging and charges the battery 300 through the LED 250 And a secondary device (Gender) 200 for transmitting an RF frequency signal to the primary device (Pad) 100 to automatically shut off the charging of the battery 300 of the portable terminal 301 when the battery 300 is fully charged And a contactless charger for a vehicle.
The method of claim 3,
The primary device (Pad) 100,
When a secondary device (Gender) 200 built in the upper and lower cases 210b and 210a to which the portable terminal 301 is attached is placed on the primary device 100, A minute potential difference is generated in the primary device (Pad) 100 by the ferrite magnets of the secondary device (Gender) 200 built in the upper case 210b of the upper case 210a or the lower case 210a, And the voltage and current of the portable terminal 301 are transmitted to the primary device 100. When the minute potential difference is sensed, the portable terminal 301 is switched from the standby current mode to the energy generation mode and immediately oscillates at a natural frequency, The portable terminal is controlled to be generated by a secondary device (Gender) 200 built in the upper and lower cases 210b and 210a of the portable terminal 301 and installed in the upper and lower cases 210b and 210a of the portable terminal 301 (Gender) 200 to the primary device (Pad) 100 When receiving a RF frequency signal for charge cut-off from the secondary device (Gender) 200 by the primary device (Pad) 100 at a certain distance during charging, Mode to switch off the supply of voltage and current by means of a coil and a ferrite to prevent overcharging.
The method of claim 3,
A secondary device (Gender) 200 built in the upper and lower cases 210b and 210a of the portable terminal 301,
Receives the induced electromotive force from the primary device (Pad; 100), which is the non-contact charging device, and recycles, low-pass filters (LPF) and regulates the LC components to sense the charged amount of the DC voltage, The red LED is turned on when the battery 300 is charged and the Yellow LED (or Blue) is turned on when the battery 300 is fully charged. LEDs 250 illuminated by LEDs; And
The secondary battery 200 of the portable terminal 301 is connected to the battery 300 of the portable terminal 301 and the charge voltage is supplied to the gender connection unit 310 of the portable terminal 301 And a Gender connector connected to the Gender connector.
3. The method of claim 2,
The charging pad, which is the primary device 100,
And a power supply jack for connecting a power line connected to the power plug of the vehicle.
3. The method of claim 2,
The support bar (20)
The hinge structure 21 is rotatable on one side so that the portable terminal 301 mounted on the primary device 100 as the support panel 30 interlocks at a predetermined angle to adjust the viewing angle of the display panel Wherein the contactless charger is a battery charger.
3. The method of claim 2,
At the lower ends of the left and right ends of the primary device 100, which is the support panel 30,
A phone support bar 40 protruding horizontally forward is formed to prevent the portable terminal 301 from falling down and a secondary device 200 built in the portable terminal 301 to which the battery 300 is attached Wherein the mounting position of the terminal case (A) is determined.
3. The method of claim 2,
A side wing fastening block 35 protruding from a rear surface of the primary device 100, which is a support panel 30;
A wing body 51 coupled to the fastening block 35 and extending in the left and right direction from the wing body 51 and extending in a rounded shape to the front of the primary device 100, And a side support (50) including a side wing (52) formed to surround the front side of the portable terminal (301) so that the portable terminal (301) can receive a stable support in the left and right directions.
3. The method of claim 2,
The support panel 30, which is the primary device 100,
And a line connected to a power source jack formed on a cellular phone holder for a vehicle to receive a current applied to a power line connected to a power plug of the vehicle.
3. The method of claim 2,
The fixing plate (10)
Characterized in that it is attached to the front panel of the vehicle by using a double-sided tape or by forming a suction plate handle (11) to perform suction and fastening.
3. The method of claim 2,
Characterized in that an LED lamp (60) is provided on the front side of the primary device (100) for indicating the sensing of the charged amount.

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