JP5339760B2 - Charger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a charger capable of charging built-in batteries of various kinds of portable devices, without having to remove the batteries from the portable devices and without having to connect the batteries to an external power supply. <P>SOLUTION: The charger is provided with: a main charging circuit 2 for charging a secondary battery 1 housed in an exterior case 20 with externally input power supplied from an external input terminal 5; a first charging circuit 3 for charging a built-in battery 9A of a first portable device 8A via a plug cord 6; a second charging circuit 4 for charging a built-in battery 9B of a second portable device 8B via a USB connector 7; and a control circuit 10 for controlling the first charging circuit 3 and the second charging circuit 4. The charger charges the built-in battery 9 of the portable device 8 with any one or both of the external input power and the secondary battery 1; and when an AC adaptor 19 is not connected to the external input terminal 5, the charger uses the secondary battery 1, to charge the built-in battery 9A of the first portable device 8A via a plug cord 6, and to charge the built-in battery 9B of the second portable device 8B via the USB connector 7. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention incorporates a secondary battery charged with external input power, such as an AC adapter, in an outer case, and is connected to the outside with both the secondary battery and external input power. The present invention relates to a charger for charging a battery built in a battery.

The present applicant has developed a charger incorporating a secondary battery. (See Patent Document 1)
JP 2003-199260 A

  Since the charger described in Patent Document 1 charges an external battery with both externally input power and a built-in secondary battery, it takes less time than charging with external input power alone. External battery can be charged.

  However, the above-described charger of Patent Document 1 is set so that AA batteries and AAA batteries can be attached and detached, and in addition to sequentially charging the external batteries with external input power, the built-in two chargers are also included. Since the secondary battery is also charged, the external battery can be charged in a shorter period of time compared to pulse charging alone. Since this charger charges a plurality of standard batteries such as AA batteries and AAA batteries as an external battery in order, it cannot be charged with a built-in battery in a mobile phone or the like. In addition, built-in batteries of various portable devices having a USB connector cannot be charged.

  The present invention has been developed for the purpose of solving this drawback. An important object of the present invention is to remove the built-in batteries of various portable devices connected by plug cords and USB connectors from the portable device, and even when not connected to an external power supply, the built-in batteries of various portable devices. It is in providing the charger which can charge.

Means for Solving the Problems and Effects of the Invention

The battery charger of the present invention has the following configuration in order to achieve the above-described object.
The charger includes an outer case 20, 40, the secondary battery 1 housed in the outer case 20, 40, and main charge housed in the outer case 20, 40 to charge the secondary battery 1 with external input power. Built-in circuit 2, external input terminal 5 of AC adapter 19 that is provided in external cases 20 and 40 and supplies external input power to main charging circuit 2, and is connected so as to be drawn out from external cases 20 and 40. A plug cord 6 detachably connected to a first portable device 8A including a battery 9A, and an external input power and the secondary battery 1 are switched via the plug cord 6 so that the built-in battery of the first portable device 8A The first charging circuit 3 for charging 9A, the USB connector 7 provided in the outer case 20, 40, and the USB connector 7 by switching between the external input power and the secondary battery 1 via the USB connector 7. The second charging circuit 4 for charging the internal battery 9B of the second portable device 8B connected to the first portable circuit 8B, the first charging circuit 3 and the second charging circuit 4 are controlled to control the first and second portable devices And a control circuit 10 for controlling the charging state of the internal battery 9 of the device 8. The charger charges the internal battery 9 of the portable device 8 with either or both of the external input power and the secondary battery 1, and in a non-input state of the external input power when the AC adapter 19 is not connected to the external input terminal 5. Uses the secondary battery 1 to charge the internal battery 9A of the first portable device 8A via the plug cord 6, and further charges the internal battery 9B of the second portable device 8B via the USB connector 7. .

  The above chargers do not take out the built-in batteries of various portable devices connected by plug cords or USB connectors from the portable device, and even when an external power source such as an AC adapter is not connected, Can be charged. In particular, this charger can charge a built-in battery of a portable device that can be connected to either a plug cord or a USB connector with a built-in secondary battery, so even if the AC adapter cannot be connected, It can be used very conveniently by charging the built-in battery of mobile phones that can be connected and all portable devices that can be connected to the USB connector.

In the battery charger according to claim 2 of the present invention, the outer case 20 is provided with fitting recesses 21 and 22 on the surface where the plug cord 6 can be detachably fitted at a fixed position.
Since this charger can be fitted in a fixed position so that a plug cord that is not in use can be removed, it can be conveniently carried by being fixed in a clean and unobtrusive state.

In the charger according to the present invention, a slide lid 42 slidable along the surface of the outer case 40 is connected to the main body case 41, and the storage portion 44 of the plug cord 6 is connected to the open portion 43 of the slide lid 42. In the state where the plug cord 6 is disposed in the storage portion 44, the slide lid 42 is closed and the plug cord 6 is stored inside the slide lid 42. The slide lid 42 has an outer shape in plan view. A drawer portion 46 that is a quadrangle of the same shape as the case 41 and that pulls out the plug cord 6 to the outside so that the slide lid 42 can be closed in a state where the plug cord 6 is pulled out from the storage portion 44. The end face of is notched.
Since this charger can store an unused plug cord inside the slide lid, the plug cord is not exposed to the outside when being carried, and can be carried in an unobstructed state while protecting the plug cord.

In the charger according to claim 4 of the present invention, the control circuit 10 includes a remaining capacity detection circuit 12 for detecting the remaining capacity of the secondary battery 1, and the remaining capacity detected by the remaining capacity detection circuit 12 is set. It is detected that the capacity is larger than the capacity, and the internal battery 9 of the portable device 8 is charged by the secondary battery 1.
This charger detects the remaining capacity of the secondary battery and charges the built-in battery of the portable device, so it can charge the built-in battery of the portable device connected to the outside without overdischarge of the secondary battery. it can.

In the charger according to claim 5 of the present invention, the control circuit 10 includes the switching circuit 11, and the switching circuit 11 is a secondary battery when the portable device 8 is connected in a state where external input power is input. 1 is suspended and the built-in battery 9 of the portable device 8 connected to the outside is charged.
This charger can quickly charge a built-in battery of a portable device connected to the outside when the AC adapter is connected and power is input from the outside.

In the charger of claim 6 of the present invention, the first mobile device 8A is a mobile phone that charges the internal battery 9A with the plug cord 6, the second mobile device 8B is charged with the USB connector 7, and the internal battery 9B is charged. USB connection device.
This charger can charge the built-in battery of the mobile phone and the USB connection device with both the power input from the AC adapter and the secondary battery.

  The charger according to claim 7 of the present invention converts the first charging circuit 3 into the voltage and current for charging the internal battery 9A of the first portable device 8A from the external input power and the power of the secondary battery 1. The output voltage / current adjustment circuit is used. This charger can charge the internal battery of the first portable device with an optimum voltage.

  The charger according to claim 8 of the present invention converts the second charging circuit 4 into the voltage and current for charging the internal battery 9B of the second portable device 8B from the external input power and the power of the secondary battery 1. The output voltage / current adjustment circuit is used. This charger can charge the internal battery of the second portable device with an optimum voltage.

In the charger according to claim 9 of the present invention, the control circuit 10 includes a connection detection circuit 13 that detects whether or not the plug cord 6 is connected to the first portable device 8A. The connection of one mobile device 8A is detected, and the first charging circuit 3 charges the internal battery 9A of the first mobile device 8A.
This charger can automatically charge the built-in battery of the connected mobile device when the first mobile device such as a mobile phone is connected.

The charger of claim 10 of the present invention is connected to the control circuit 10 with an operation switch 15 for inputting a signal for controlling the operation state of the second charging circuit 4 from the outside to the control circuit 10. In this charger, a signal is input from the operation switch 15 and the connection detection circuit 13 does not detect the connection of the first portable device 8A, and the second charging circuit 4 has the built-in battery of the second portable device 8B. Charge 9B.
The charger determines the connection state of the second portable device based on a signal input from the operation switch while avoiding unnecessary power consumption when the portable device is not connected. The built-in battery can be charged.

In the charger according to claim 11 of the present invention, the control circuit 10 includes a connection detection circuit 13 for detecting whether or not the plug cord 6 is connected to the first portable device 8A. An operation switch 15 for inputting a signal for controlling the operation state of the charging circuit 3 from the outside to the control circuit 10 is connected. In this charger, a signal is input from the operation switch 15 and the connection detection circuit 13 detects the connection of the first portable device 8A, and the first charging circuit 3 is a built-in battery of the first portable device 8A. Charge 9A.
The charger determines the connection state of the first portable device based on a signal input from the operation switch while not consuming power wastefully when the portable device is not connected. The built-in battery can be charged.

In the charger according to claim 12 of the present invention, the control circuit 10 includes a connection detection circuit 13 that detects whether or not the plug cord 6 is connected to the first portable device 8A, and the control circuit 10 includes the first An operation switch 15 for inputting a signal for controlling the operation state of the charging circuit 3 from the outside to the control circuit 10 is connected. In this charger, a signal is input from the operation switch 15 and the connection detection circuit 13 does not detect the connection of the first portable device 8A, and the second charging circuit 4 has the built-in battery of the second portable device 8B. Charge 9B.
The charger determines the connection state of the first portable device based on a signal input from the operation switch while avoiding wasteful power consumption when the portable device is not connected. The built-in battery can be charged.

According to a thirteenth aspect of the present invention, the plug 6B fixed to the tip of the plug cord 6 has the same shape as the plug 19B connected to the external input terminal 5.
In this charger, an AC adapter connected to the first portable device can be connected to the charger to charge the built-in secondary battery and the built-in battery of the first portable device, and the AC adapter can be used as a charger. The internal battery can be charged by connecting directly to the first portable device without connecting.

  The charger according to claim 14 of the present invention has the following configuration in order to achieve the above-mentioned object.
  The charger includes an outer case 20, 40, the secondary battery 1 housed in the outer case 20, 40, and main charge housed in the outer case 20, 40 to charge the secondary battery 1 with external input power. Built-in circuit 2, external input terminal 5 of AC adapter 19 that is provided in external cases 20 and 40 and supplies external input power to main charging circuit 2, and is connected so as to be drawn out from external cases 20 and 40. A plug cord 6 detachably connected to a first portable device 8A including a battery 9A, and an external input power and the secondary battery 1 are switched via the plug cord 6 so that the built-in battery of the first portable device 8A A first charging circuit 3 for charging 9A and a control circuit 10 for controlling the charging state of the built-in battery 9A of the first portable device 8A by controlling the first charging circuit 3 are provided. The charger charges the internal battery 9 </ b> A of the first portable device 8 </ b> A with either or both of the external input power and the secondary battery 1, and the external input power that is not connected to the AC adapter 19 is not connected to the external input terminal 5. In the input state, the secondary battery 1 charges the internal battery 9A of the first portable device 8A via the plug cord 6.
  In the charger, a slide lid 42 slidable along the surface of the outer case 40 is connected to the main body case 41, and an opening portion 43 of the slide lid 42 is provided with a storage portion 44 for the plug cord 6. In the state where the plug cord 6 is disposed in the storage portion 44, the slide lid 42 is closed and the plug cord 6 is stored inside the slide lid 42. A pull-out portion 46 that pulls out the plug cord 6 to the outside so that the slide lid 42 can be closed with the plug cord 6 being pulled out from the storage portion 44 and having the same shape as the end of the storage portion 44. Notched.

  Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment described below exemplifies a charger for embodying the technical idea of the present invention, and the present invention does not specify the charger as follows.

Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the examples are indicated in the “claims” and “means for solving problems” sections. It is added to the members. However, the members shown in the claims are not limited to the members in the embodiments.
Moreover, FIG. 2 thru | or 4 does not show the charger which concerns on the Example of this invention, The charger of the reference example is shown.

  The charger shown in the circuit diagram of FIG. 1 and the perspective views of FIGS. 2 to 4 includes an outer case 20, the secondary battery 1 stored in the outer case 20, and the secondary battery 1 stored in the outer case 20. A main charging circuit 2 that charges the battery 1 with external input power, an external input terminal 5 of an AC adapter 19 that is provided in the outer case 20 and supplies external input power to the main charging circuit 2, and is pulled out from the outer case 20. The plug cord 6 is connected so as to be detachably connected to the first portable device 8A including the built-in battery 9A, and the first input is switched between the external input power and the secondary battery 1 via the plug cord 6. The first charging circuit 3 for charging the built-in battery 9A of the portable device 8A, the USB connector 7 provided in the exterior case 20, and the external input power and the secondary battery 1 are switched via the USB connector 7. USB The second charging circuit 4 for charging the built-in battery 9B of the second portable device 8B connected to the connector 7, the first charging circuit 3 and the second charging circuit 4 are controlled, and the first and second charging circuits 4 are controlled. And a control circuit 10 for controlling the state of charge of the built-in battery 9 of the portable device 8.

  This charger charges the internal battery 9 of the portable device 8 connected to the outside with either or both of the external input power and the secondary battery 1, and the external input terminal 5 is not connected to the AC adapter 19. In the non-input state of power, the built-in secondary battery 1 is used to charge the built-in battery 9A of the first portable device 8A through the plug cord 6, and the second battery is connected through the USB connector 7. The built-in battery 9A of the portable device 8B is charged.

  The outer case 20 of the charger shown in FIG. 3 is provided with fitting recesses 21 and 22 on the back surface, in which the plug cord 6 can be detachably fitted at a fixed position. The outer case 20 shown in these drawings has a rectangular shape with a predetermined thickness as a whole, and has an insertion recess 21 of a cord 6A having a groove shape on the outer peripheral surface and an insertion recess 22 of a plug 6B on the bottom surface. Yes. Furthermore, the bottom surface of the exterior case 20 is provided with recesses 23 on both sides of a cord bush 6C that connects the cord 6A to the plug 6B. The outer case 20 can easily remove the plug 6 </ b> B fitted in the fitting recess 22 by putting a finger into the recesses 23 on both sides and holding the cord bush 6 </ b> C.

  The outer case 40 of FIGS. 5 to 7 is connected to a main body case 41 by a slide lid 42 that can slide along the surface. The slide lid 42 is connected to the main body case 41 so that the outer shape is a quadrangle having the same outer shape as that of the main body case 41 and can slide in the longitudinal direction. When the slide lid 42 is displaced in the longitudinal direction with respect to the main body case 41, an open portion 43 is formed on the bottom surface of the main body case 41. The open portion 43 is provided with a storage portion 44 for the plug cord 6, and the plug cord 6 is stored in the storage portion 44. The main body case 41 shown in the drawing is provided with a holding rib 45 that holds the plug cord 6 in a fixed position so as to protrude inside the storage portion 44. The outer case 40 can hold the plug cord 6 housed in the housing portion 44 in a fixed position while being positioned by the holding rib 45. The outer case 40 closes the slide lid 42 to store the plug cord 6 in the slide lid 42, opens the slide lid 42, takes out the plug cord 6 from the storage portion 44, and connects to the first portable device 8 </ b> A. To do. Further, the exterior case 40 shown in the figure has a drawer portion 46 for pulling out the plug cord 6 to the outside so that the slide lid 42 can be closed in a state where the plug cord 6 is pulled out from the storage portion 44. Notched.

  Further, the outer cases 20 and 40 are provided with the external input terminal 5 and the USB connector 7 around the outer casings 20 and 40, and further provided with the push button 14A of the inspection switch 14 and the push button 15A of the operation switch 15 on the surface thereof. Further, the exterior cases 20 and 40 shown in the figure are provided with a pilot lamp 16 outside. The pilot lamp 16 indicates the state of charge of the portable device 8 connected to the outside, or displays the remaining capacity of the secondary battery 1.

  The plug cord 6 is connected to the outer cases 20 and 40, and the plug 6 </ b> B connected to the tip of the plug cord 6 has the same shape as the plug 19 </ b> B connected to the external input terminal 5. An AC adapter 19 is connected to the external input terminal 5. A plug 19B of the AC adapter 19 is connected to the first portable device 8A or to the external input terminal 5 of the charger.

  The secondary battery 1 is a lithium ion battery. However, the secondary battery 1 can be any battery that can be charged, such as a nickel metal hydride battery or a nickel cadmium battery, instead of the lithium ion battery. The secondary battery 1 is a battery having a capacity larger than a capacity capable of fully charging the built-in battery 9A of the first portable device 8A, and has a capacity capable of fully charging the built-in battery 9 of the portable device 8 at least once.

  The main charging circuit 2 charges the secondary battery 1 with external input power input from the AC adapter 19 connected to the external input terminal 5. A charger using the secondary battery 1 as a lithium ion battery charges the secondary battery 1 using the main charging circuit 2 as a constant voltage constant current circuit. The main charging circuit 2 detects the full charge of the secondary battery 1 and ends the charging of the secondary battery 1. The main charging circuit 2 is controlled by the switching circuit 11 of the control circuit 10 to charge the secondary battery 1. The switching circuit 11 of the control circuit 10 is in a state where the AC adapter 19 is connected to the external input terminal 5 and the portable device 8 is not connected to the outside or the built-in battery 9 of the connected portable device 8 is fully charged. In this state, the secondary battery 1 is charged with the main charging circuit 2 in the operating state.

  The first charging circuit 3 is a voltage / current adjusting circuit that adjusts the output voltage and the output current to the voltage and current for charging the built-in battery 9A of the first portable device 8A to which the plug cord 6 is connected. The voltage / current adjustment circuit is a DC / DC converter, and adjusts and outputs the external input power and the voltage of the secondary battery 1 to a voltage that can charge the internal battery 9A of the first portable device 8A. The first charging circuit 3 is also controlled by the switching circuit 11 of the control circuit 10 to charge the built-in battery 9A of the first portable device 8A. The switching circuit 11 of the control circuit 10 switches the external input power and the secondary battery 1 to charge the internal battery 9A of the first portable device 8A while the plug cord 6 is connected to the first portable device 8A. Thus, the first charging circuit 3 is controlled. In a state where the AC adapter 19 is connected to the external input terminal 5, the switching circuit 11 of the control circuit 10 has priority over the secondary battery 1, that is, without charging with the secondary battery 1, the first with external input power. The built-in battery 9A of the portable device 8A is charged. In a state where the AC adapter 19 is not connected to the external input terminal 5, the secondary battery 1 charges the internal battery 9A of the first portable device 8A. Note that the switching circuit 11 of the control circuit 10 has priority over the built-in battery 9A of the first portable device 8A when the secondary battery 1 has a predetermined capacity or less when the AC adapter 19 is connected to the external input terminal 5. Then, the secondary battery 1 can be charged. Further, the switching circuit 11 of the control circuit 10 charges the internal battery 9A of the first portable device 8A while charging the secondary battery 1 in a state where the AC adapter 19 is connected to the external input terminal 5. It can also be switched.

  The second charging circuit 4 is a voltage / current adjusting circuit that adjusts the output voltage and the output current to the voltage and current for charging the internal battery 9B of the second portable device 8B connected to the USB connector 7. The voltage / current adjusting circuit is a DC / DC converter, and adjusts and outputs the external input power and the voltage of the secondary battery 1 to a voltage that can charge the internal battery 9B of the second portable device 8B. The second charging circuit 4 is also controlled by the switching circuit 11 of the control circuit 10 and charges the built-in battery 9B of the second portable device 8B. The switching circuit 11 of the control circuit 10 switches the external input power and the secondary battery 1 to charge the internal battery 9B of the second portable device 8B while the second portable device 8B is connected to the USB connector 7. Thus, the second charging circuit 4 is controlled. In a state where the AC adapter 19 is connected to the external input terminal 5, the switching circuit 11 of the control circuit 10 has priority over the secondary battery 1, that is, without charging with the secondary battery 1, the second input with external input power. The built-in battery 9 of the portable device 8B is charged. In a state where the AC adapter 19 is not connected to the external input terminal 5, the secondary battery 1 charges the internal battery 9B of the second portable device 8B.

  The control circuit 10 includes a switching circuit 11, a remaining capacity detection circuit 12, and a connection detection circuit 13. The switching circuit 11 switches between the main charging circuit 2, the first charging circuit 3, and the second charging circuit 4, and the secondary battery 1, the built-in battery 9A of the first portable device 8A, and the second charging circuit The charging of the internal battery 9B of the portable device 8B is controlled. The switching circuit 11 switches the secondary battery 1, the built-in battery 9A of the first portable device 8A, and the built-in battery 9B of the second portable device 8B in a state where the AC adapter 19 is connected to the external input terminal 5. To charge.

  The remaining capacity detection circuit 12 detects the remaining capacity of the secondary battery 1 and controls the switching circuit 11. The remaining capacity detection circuit 12 can calculate the remaining capacity by integrating the current for charging / discharging the secondary battery 1 and can detect the remaining capacity by detecting the voltage. The remaining capacity detection circuit 12 controls the switching circuit 11 to stop discharging of the secondary battery 1 when the remaining capacity of the secondary battery 1 becomes smaller than the minimum capacity. That is, the switching circuit 11 stops the discharging of the secondary battery 1 with the first charging circuit 3 and the second charging circuit 4 being inoperative. The remaining capacity detection circuit 12 of FIG. 1 includes a remaining capacity inspection switch 14. When the inspection switch 14 is pressed, the remaining capacity detection circuit 12 displays the remaining capacity of the secondary battery 1 by blinking or color of the pilot lamp 16.

  The connection detection circuit 13 detects whether or not the plug cord 6 is connected to the first portable device 8A. The connection detection circuit 13 determines the connection of the first portable device 8A based on the connection state between the ground line 6Ac of the plug cord 6 and the negative terminal 6Bb. The plug cord 6 is connected to the first portable device 8A through three terminals of a plus terminal 6Ba, a minus terminal 6Bb, and a ground terminal 6Bc. In the first portable device 8A, the negative terminal 18b and the ground terminal 18c are short-circuited by the connector 18 connected to the plug cord 6. Accordingly, when the plug cord 6 is connected to the first portable device 8A, the minus terminal 6Bb and the ground terminal 6Bc are short-circuited, so the connection detection circuit 13 detects a short-circuit between the minus terminal 6Bb and the ground terminal 6Bc. Then, it is determined that the first portable device 8A is connected.

Further, in FIG. 1, the connection detection circuit 13 can determine whether or not the first portable device 8 </ b> A is connected to the plug cord 6 by using the operation switch 15 as described below. . The control circuit 10 shown in FIG. 1 includes an operation switch 15 for inputting a signal for controlling the operation state of the first charging circuit 3 and the second charging circuit 4 from the outside to the connection detection circuit 13. The connection detection circuit 13 determines whether or not the first portable device 8 </ b> A is connected to the plug cord 6 by a signal (trigger signal) input from the operation switch 15. The control circuit 10 is in a sleep state in the standby state, and minimizes power consumption. When a signal (trigger signal) is input from the operation switch 15, the operation state is entered, and the connection detection circuit 13 detects a short circuit between the minus terminal 6Bb and the ground terminal 6Bc, and the first portable device 8A is connected. Determine whether it was done.

  Further, the connection detection circuit 13 determines whether or not the first portable device 8A is connected to the plug cord 6, and controls the switching circuit 11. When the connection detection circuit 13 detects from the signal input from the operation switch 15 that the first portable device 8A is connected to the plug cord 6, the first charging circuit 3 is set in the operating state and the first portable device 8A is activated. The internal battery 9A of the device 8A is charged. When the switching circuit 11 detects that the first portable device 8A is not connected to the plug cord 6, or detects that the built-in battery 9A of the first portable device 8A is fully charged, The charging circuit 4 is put into an operating state. This is because the built-in battery 9B of the second portable device 8B is charged.

  Further, as described above, the connection detection circuit 13 determines whether or not the first portable device 8A is connected to the plug cord 6 based on the signal (trigger signal) input from the operation switch 15, and the switching circuit 11 Instead of controlling, it is also possible to control as follows. This connection detection circuit 13 controls the switching circuit 11 by determining whether a USB connection device as the second portable device 8B is connected to the USB connector 7 by a signal (trigger signal) input from the operation switch 15. To do. The control circuit 10 is in a sleep state in the standby state, and minimizes power consumption. When a signal (trigger signal) is input from the operation switch 15, the operation state is entered, and the connection detection circuit 13 detects the voltage of the USB connector 7 to determine whether or not the USB connection device is connected. The connection detection circuit 13 in the operating state outputs, for example, a voltage larger or smaller than the voltage range of the built-in battery 9B of the second portable device 8B to the USB connector 7, and the second portable device 8B. Connection can be detected. In addition, such connection of the second portable device 8B can be detected by measuring the presence or absence of current. This is because the voltage of the USB connector 7 to which the second portable device 8B is connected becomes the voltage of the built-in battery 9B. When the connection detection circuit 13 detects that a USB connection device is connected to the USB connector 7 based on a signal (trigger signal) input from the operation switch 15, the connection detection circuit 13 sets the second charging circuit 4 to the operating state and sets the second charging circuit 4 to the operation state. The built-in battery 9B of the portable device 8B is charged. However, the switching circuit 11 detects that the first portable device 8A is not connected, or detects that the built-in battery 9A of the first portable device 8A is fully charged, and turns on the second charging circuit 4. Set to operating state. This is because the built-in battery 9A of the first portable device 8A is charged with priority over the built-in battery 9B of the second portable device 8B.

  The above control circuit 10 controls the switching circuit 11 by the following operation to charge the secondary battery 1, the built-in battery 9A of the first portable device 8A, and the built-in battery 9B of the second portable device 8B. .

[State in which AC adapter 19 is connected to external input terminal 5]
(1) The state in which the first and second portable devices 8 are not connected In this state, the switching circuit 11 charges the secondary battery 1 with the main charging circuit 2 in the operating state, and the secondary battery 1 is fully charged. And finish charging. In this state, the switching circuit 11 puts the first charging circuit 3 and the second charging circuit 4 into a non-operating state.
(2) The state in which the first portable device 8A is connected and the second portable device 8B is not connected In this state, the switching circuit 11 prioritizes the secondary battery 1 with the first charging circuit 3 in the operating state. Then, the built-in battery 9A of the first portable device 8A is charged. After the built-in battery 9A of the first portable device 8A is fully charged, the first charging circuit 3 is set to the non-operating state, and the main charging circuit 2 is set to the operating state until the secondary battery 1 is fully charged. The second charging circuit 4 is always kept in a non-operating state.
(3) The state in which the second portable device 8B is connected and the first portable device 8A is not connected. In this state, the switching circuit 11 sets the second charging circuit 4 in the operating state and the second portable device 8B The internal battery 9B is charged. After the built-in battery 9B of the second portable device 8B is fully charged, the second charging circuit 4 is set in a non-operating state and the main charging circuit 2 is set in an operating state until the secondary battery 1 is fully charged. The first charging circuit 3 is always kept in a non-operating state.
(4) State in which first portable device 8A and second portable device 8B are connected In this state, switching circuit 11 has priority over secondary battery 1 and internal battery 9B of second portable device 8B, The built-in battery 9A of the first portable device 8A is charged with the first charging circuit 3 in the operating state. In this state, the main charging circuit 2 and the second charging circuit 4 are in a non-operating state. After the built-in battery 9A of the first portable device 8A is fully charged, the second charging circuit 4 is set in the operating state to fully charge the built-in battery 9B of the second portable device 8B, and the built-in battery 9 is fully charged. Then, the secondary battery 1 is charged until the main charging circuit 2 is in an operating state until it is fully charged.

[A state where the AC adapter 19 is not connected to the external input terminal 5]
(1) The state in which the first portable device 8A is connected and the second portable device 8B is not connected In this state, the switching circuit 11 sets the main charging circuit 2 and the second charging circuit 4 to the non-operating state, 1 charging circuit 3 is set in an operating state, and internal battery 9A of first portable device 8A is charged with electric power output from secondary battery 1. Since the secondary battery 1 is discharged and the built-in battery 9A of the first portable device 8A is charged, the control circuit 10 performs the first charging while detecting the remaining capacity of the secondary battery 1 by the remaining capacity detection circuit 12. The built-in battery 9A is charged with the circuit 3 operating. When the remaining capacity of the secondary battery 1 reaches the minimum capacity, the control circuit 10 stops the charging of the built-in battery 9 </ b> A with the first charging circuit 3 in the non-operating state.
(2) The state in which the second portable device 8B is connected and the first portable device 8A is not connected In this state, the switching circuit 11 sets the main charging circuit 2 and the first charging circuit 3 to the non-operating state, The charging circuit 4 of the second mobile phone 8 is set in an operating state, and the built-in battery 9B of the second portable device 8B is charged with the power output from the secondary battery 1. Since the secondary battery 1 is discharged to charge the internal battery 9B of the second portable device 8B, the control circuit 10 performs the second charge while detecting the remaining capacity of the secondary battery 1 by the remaining capacity detection circuit 12. The built-in battery 9B is charged with the circuit 4 operating. When the remaining capacity of the secondary battery 1 reaches the minimum capacity, the control circuit 10 also stops the charging of the built-in battery 9B with the second charging circuit 4 in the non-operating state.
(3) State in which first mobile device 8A and second mobile device 8B are connected In this state, switching circuit 11 sets main charging circuit 2 and second charging circuit 4 to the non-operating state, The built-in battery 9A of the first portable device 8A is charged in preference to the built-in battery 9B of the portable device 8B. After the built-in battery 9A of the first portable device 8A is fully charged, the first charging circuit 3 is deactivated, the second charging circuit 4 is switched to the activated state, and the built-in battery of the second portable device 8B Fully charge 9B. Even in this charged state, the secondary battery 1 is discharged and the built-in battery 9 of the first and second portable devices 8 is charged. Therefore, the remaining capacity of the secondary battery 1 is controlled by the remaining capacity detection circuit 12 in the control circuit 10. The internal battery 9 is charged with the first charging circuit 3 or the second charging circuit 4 in the operating state. When the remaining capacity of the secondary battery 1 reaches the minimum capacity, the control circuit 10 stops the charging of the built-in battery 9 with the first charging circuit 3 or the second charging circuit 4 deactivated.

It is a circuit diagram of the charger concerning one Example of this invention. It is a perspective view of the charger concerning the reference example of this invention. FIG. 3 is a bottom perspective view of the charger shown in FIG. 2. It is a perspective view which shows the use condition of the charger shown in FIG. It is a perspective view of a charger according to the actual施例of the present invention. It is the bottom perspective view which looked at the storage part of the plug cord of the charger shown in Drawing 5 from the back. FIG. 6 is a bottom perspective view showing a state in which the plug cord is pulled out from the charger shown in FIG. 5.

DESCRIPTION OF SYMBOLS 1 ... Secondary battery 2 ... Main charging circuit 3 ... 1st charging circuit 4 ... 2nd charging circuit 5 ... External input terminal 6 ... Plug cord 6A ... Cord
6Ac ... Earth line
6B ... Plug
6Ba ... Positive terminal
6Bb ... Negative terminal
6Bc: Earth terminal
6C ... Cord bush 7 ... USB connector 8 ... Portable device 8A ... First portable device
8B ... Second portable device 9 ... Built-in battery 9A ... Built-in battery
9B ... Built-in battery 10 ... Control circuit 11 ... Switching circuit 12 ... Remaining capacity detection circuit 13 ... Connection detection circuit 14 ... Inspection switch 14A ... Push button 15 ... Operation switch 15A ... Push button 16 ... Pilot lamp 18 ... Connector 18a ... Plus terminal
18b ... Negative terminal
18c ... Earth terminal 19 ... AC adapter 19B ... Plug 20 ... Exterior case 21 ... Insertion recess 22 ... Insertion recess 23 ... Concavity 40 ... Exterior case 41 ... Main body case 42 ... Slide lid 43 ... Open part 44 ... Storage part 45 ... Retaining rib 46 ... drawer part

Claims (14)

The outer case (20), (40), the secondary battery (1) stored in the outer case (20), (40) and the secondary case stored in the outer case (20), (40) A main charging circuit (2) for charging the battery (1) with external input power, and an AC adapter (19) provided in the outer case (20), (40) for supplying external input power to the main charging circuit (2) ) External input terminal (5) and detachably connected to the first portable device (8A) having a built-in battery (9A) connected to be pulled out from the outer case (20), (40). Plug cord (6) to be switched and the external input power and the secondary battery (1) are switched via the plug cord (6) to charge the internal battery (9A) of the first portable device (8A). 1 charging circuit (3), USB connector (7) provided in the outer case (20), (40), and external input power and secondary battery (1) via the USB connector (7) To connect to the USB connector (7). The second charging circuit (4) for charging the internal battery (9B) of the portable device (8B), the first charging circuit (3) and the second charging circuit (4) to control the first and A control circuit (10) for controlling the charge state of the internal battery (9) of the second portable device (8),
The internal battery (9) of the portable device (8) is charged with either or both of the external input power and the secondary battery (1), and the AC adapter (19) is not connected to the external input terminal (5). When the external input power is not input, the internal battery (9A) of the first portable device (8A) is charged via the plug cord (6) with the secondary battery (1), and the USB connector ( 7) to charge the internal battery (9B) of the second portable device (8B) via
The outer case (40) is connected to a main body case (41) with a slide lid (42) that can slide along the surface, and a plug cord (6) is connected to an open portion (43) of the slide lid (42). ) Storage part (44), and with the plug cord (6) disposed in the storage part (44), the slide lid (42) is closed and the plug cord (6) is attached to the slide lid (42). It is designed to be stored inside,
Furthermore, the slide lid (42) is a quadrangle whose outer shape is the same shape as the main body case (41) in a plan view, and the slide with the plug cord (6) pulled out from the storage portion (44). A charger comprising a lead-out portion (46) for pulling out the plug cord (6) to the outside so that the lid (42) can be closed by cutting out the end face of the storage portion (44) .   2. The charger according to claim 1, wherein the outer case (20) is provided with fitting recesses (21) and (22) on a surface thereof in which the plug cord (6) can be detachably fitted at a fixed position.   The charger according to claim 1, wherein the main body case (41) is provided with a holding rib (45) for holding the plug cord (6) in a fixed position so as to protrude inside the storage portion (44). .   The control circuit (10) includes a remaining capacity detection circuit (12) for detecting the remaining capacity of the secondary battery (1), and the remaining capacity detected by the remaining capacity detection circuit (12) is larger than a set capacity. The charger according to claim 1, wherein the internal battery (9) of the portable device (8) is charged with the secondary battery (1).   The control circuit (10) includes a switching circuit (11) .When the portable device (8) is connected in a state where external input power is input, the switching circuit (11) is connected to the secondary battery (1). The charger according to claim 1, wherein charging is suspended and the built-in battery (9) of the portable device (8) connected to the outside is charged.   The first portable device (8A) is a mobile phone that charges the internal battery (9A) with the plug cord (6), and the second portable device (8B) charges the internal battery (9B) with the USB connector (7). The charger according to claim 1, wherein the charger is a USB connection device.   The first charging circuit (3) converts the external input power and the power of the secondary battery (1) into a voltage and current for charging the internal battery (9A) of the first portable device (8A) and outputs them. The charger according to claim 1, which is a voltage / current adjusting circuit.   The second charging circuit (4) converts the external input power and the power of the secondary battery (1) into a voltage and current for charging the internal battery (9B) of the second portable device (8B) and outputs them. The charger according to claim 1, which is a voltage / current adjusting circuit. The control circuit (10) includes a connection detection circuit (13) for detecting whether or not the plug cord (6) is connected to the first portable device (8A). The connection detection circuit (13) The charger according to claim 1, wherein the connection of the portable device (8A) is detected, and the built-in battery ( 9A ) of the first portable device (8A) is charged by the first charging circuit (3).   The control circuit (10) is connected to an operation switch (15) for inputting a signal for externally controlling the operation state of the second charging circuit (4) to the control circuit (10). ) And the connection detection circuit (13) does not detect the connection of the first portable device (8A), and the second charging circuit (4) is built into the second portable device (8B). The charger according to claim 9, wherein the battery (9B) is charged.   The control circuit (10) includes a connection detection circuit (13) for detecting whether or not the plug cord (6) is connected to the first portable device (8A), and the control circuit (10) includes a first An operation switch (15) is connected to the control circuit (10) to input a signal to control the operating state of the charging circuit (3) from the outside, and the connection is detected when a signal is input from the operation switch (15). With the circuit (13) detecting the connection of the first portable device (8A), the first charging circuit (3) charges the built-in battery (9A) of the first portable device (8A). The charger according to claim 1.   The control circuit (10) includes a connection detection circuit (13) for detecting whether or not the plug cord (6) is connected to the first portable device (8A), and the control circuit (10) includes a first An operation switch (15) is connected to the control circuit (10) to input a signal to control the operating state of the charging circuit (3) from the outside, and the connection is detected when a signal is input from the operation switch (15). The second charging circuit (4) charges the internal battery (9B) of the second portable device (8B) while the circuit (13) does not detect the connection of the first portable device (8A). The charger according to claim 1.   The charger according to claim 1, wherein the plug (6B) fixed to the tip of the plug cord (6) has the same shape as the plug (19B) connected to the external input terminal (5).   The outer case (20), (40), the secondary battery (1) stored in the outer case (20), (40) and the secondary case stored in the outer case (20), (40) A main charging circuit (2) for charging the battery (1) with external input power, and an AC adapter (19) provided in the outer case (20), (40) for supplying external input power to the main charging circuit (2) ) External input terminal (5) and detachably connected to the first portable device (8A) having a built-in battery (9A) connected to be pulled out from the outer case (20), (40). Plug cord (6) to be switched and the external input power and the secondary battery (1) are switched via the plug cord (6) to charge the internal battery (9A) of the first portable device (8A). 1 charging circuit (3) and a control circuit (10) for controlling the charging state of the internal battery (9A) of the first portable device (8A) by controlling the first charging circuit (3). And
  The internal battery (9A) of the first portable device (8A) is charged with either or both of the external input power and the secondary battery (1), and the AC adapter (19) is connected to the external input terminal (5). In the non-input state of external input power that is not connected, the secondary battery (1) is used to charge the internal battery (9A) of the first portable device (8A) via the plug cord (6).
  The outer case (40) is connected to a main body case (41) with a slide lid (42) that can slide along the surface, and a plug cord (6) is connected to an open portion (43) of the slide lid (42). ) Storage part (44), and with the plug cord (6) disposed in the storage part (44), the slide lid (42) is closed and the plug cord (6) is attached to the slide lid (42). It is designed to be stored inside,
  Furthermore, the slide lid (42) is a quadrangle whose outer shape is the same shape as the main body case (41) in a plan view, and the slide with the plug cord (6) pulled out from the storage portion (44). A charger comprising a lead-out portion (46) for pulling out the plug cord (6) to the outside so that the lid (42) can be closed by cutting out the end face of the storage portion (44).

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