PT9481U - AC / DC RECHARGEABLE BATTERY FOR TELEMOVEL - Google Patents

Description

RESEARCH

Eoíarafe: " AC / DC RECHARGEABLE BATTERY FOR MOBILE PHONE "

EXPLANATIONS ABOUT THE INVENTION

Background of the Invention ΓBrief Introduction to Invencolol Technology

This invention is a type of "AC / DC rechargeable battery for mobile phone", especially a mobile phone battery which can be charged directly from mains power, or charged by a commercially available DC charger.

To charge a traditional mobile phone battery, to replace the power consumed, a charger must be used. For this reason, the user has to buy an extra charger and pay more money. In addition, the charger is too large, heavy and uncomfortable to carry. ΓBe Introduction to Technology Prevl

Due to these disadvantages, the producers have perfected it. As shown in Fig. 1, the rechargeable battery is composed of a carton (10) and a charger, etc. A concave compartment 13, with two recesses to its left and to its right, is placed in the panel 12 of the housing 10 to hold a reversible and positionable electrical connector 15. The plug 15 has two forwardly elongated electric inserts 1 and a conductive support shaft 17 connecting the electrical inserts 16 transversely. The left and right conductive plates (18), with recesses, are installed in the frame of the circuit (11) of the charger, to secure the conductive support shaft (17) of the plug (15). Then the power of the network AC can be supplied to the charger via the electrical insertion pieces 16, the conductive support shaft 17 and the conductive plate 18 of the plug 15. But this configuration of the conductive support shaft (17) will increase the resistance of the chain; in addition, the contacts between the conductive support shaft 17 and the conductive plates 18 of the circuit board 11 have a fixed coupling shape which can not make a firm contact. Furthermore, when the plug 15 is outwardly and well positioned, as well as when it is retracted and set, the conductive support shaft 17 is not separated from the conductive plate 18, which always causes wear and tear decrease in conductivity. In addition, since the positioning of the conductive support shaft 17 of the plug 15 is based on the firm mounting of the circuit board 11 and the support of the conductive plate 18, losses always occur. This is not an ideal structure to operate.

Another disadvantage is that the plug (15) is the AC receiver terminal of the charger. After rectification, filtering and stabilization, the AC is converted to DC to drive the transformer and the load circuit, through an activator circuit, consisting of transistors. The DC, on the one hand, is used to charge the rechargeable battery (19), on the other hand it supplies power to the mobile phone through the DC emitting terminals of the panel (12). When the batteries (19) are fully charged, the charger can not automatically shut down the driven circuit. This results in energy expenditure and shortening of the life of the circuit and the batteries (19). Another problem is that there is no full charge indicator or protection against overheating of the batteries (19).

Due to the disadvantages of the existing rechargeable mobile phone battery, a new way of solving these problems has been sought, and finally the invention " AC / DC mobile phone type rechargeable battery ". The purpose of this invention is to provide a " rechargeable battery type AC / DC for mobile phone ". Its plastic shaft of the plug is secured between the concave housing of the panel and the rear body of the cabinet, making the electrical insert of the plug firmly press the elastic conductive parts of the circuit board of the charger. When the plug is collected and seated, the electrical inserts will be separated from the elastic conductive parts. This can be safely and securely mounted as a whole. It is durable and its conductive quality is perfected.

Another object of this invention is to provide a " rechargeable battery type AC / DC for mobile phone ". A reversible, positionable plug is attached to the back of the case body, so the rechargeable battery can be charged directly from the mains without being detached from the phone. The third object of this invention is to provide a " rechargeable battery type AC / DC for mobile phone ". A dual color LED, a thermosensitive resistor and rechargeable batteries are connected in parallel along the charging circuit. When the charge voltage is lower than the reference voltage, the double LED red light comes on. When the batteries are fully charged, the green dual LED light comes on and a low potential is emitted to an optical coupling switch, from a linear IC, to stop recharging. This saves energy and prolongs battery life.

For the purpose of evaluation, a practical example with figures, as follows, is presented in detail to explain how to achieve the above-mentioned objectives, using technological measures. Figure 1 is a cross-sectional view of a " rechargeable battery " for mobile phone. Fig. 2 represents an aspect of the invention. 3 is a cross-sectional view of Fig. 2; Fig. 4 is a cross-sectional view showing that the plug (in Fig. 2) has been turned outwardly and positioned. 5 is a cross-sectional view showing that the plug (in Fig. 4) has been turned outwardly and positioned. 6 shows the side view of Fig. 5; Fig. 7 shows the plug of Fig. 6 which has been collected and set. Fig. 8 shows the block diagram of the loader of this invention. Fig. 9 shows the circuit diagram of Fig. 8. Fig. 10 shows the aspect of another practical example of this invention. (22) Concave housing (23) Side wall (24) Side wall (25) Snap-in (26) Bracket plate (27) Bracket plate Φ (28) (29) Window for light (210) Back box body (220) Housing Concave (30) Electrical plug (31) Plastic housing (32) Support shaft (33) Support shaft (34) Electric insertion part (35) Spare parts for electric power supply (41) Spare parts of energy supply 4 (42) Elastic load-carrying parts (50) Circuit board (51) Conductive elastic piece (52) conductive

(60) AC receiver terminal (61) Rectifier circuit (62) Filter circuit (63) Voltage stabilizer circuit (64) Activation circuit (65) Charge circuit (66) Overheat protection circuit (67) Rechargeable battery

(68) DC emitter terminal

(69) DC receiver terminal

As indicated in Fig. 2, the invention " AC / DC type rechargeable mobile phone battery " is mainly a rechargeable battery for mobile phone, which can be directly charged by electric power (usually AC 110-240V). A magazine is attached to a carton and a concave compartment space 22 is formed in the front portion of the carton panel 20 to secure the plug 30 (it can be rolled out and positioned as well as collected and set ), which is used for direct charging with mains power.

As indicated in Fig. 3, the rechargeable battery housing is composed of the panel 20 and the rear housing body 21 by the connection thereof by high frequency melt connection. A concave compartment space (22) is made in the front part of the panel (20). Fittings 25 are formed at the rear ends of the left and right side walls 23 of the concave housing 22 respectively to engage the left and right sections of the plastic support shaft 32 ) (33) of the plastic body (31) of the plug (30). The left and right electrical inserts (34) (35) of the plug pass through the plastic body (31) (longer in front and shorter in back). A pair of plastic support plates 26 are placed on the inside of the rear body of the carton, opposite one another, with one on the right and one on the left. The plastic support plates fasten the support shaft 32 of the plug with its recesses 28 located at the leading end of the plates to enable the plug 30 to be turned outwardly and positioned or collected and set around the shaft. The charging circuit board (50) and the rechargeable batteries (67) are firmly installed in the rechargeable battery case. Two resilient conductive pieces 51, 52, which extend out of the circuit frame 50, are used as AC receiver terminals. The rear ends of the electrical inserts 34 of the plug 30 are elastically compressed in the pieces 51, 52. FIGS. 4,5,6 show that the plug (30) is (in position) turned outwardly and positioned. The plastic body 31 of the plug 30 fits the left and right walls 23 of the concave compartment 22. The plastic support shaft 32 is secured and held by a support plate 26 and its inserts 25 with the same material. This method can reduce electrical resistance, improve the conductivity quality of the current, consequently the AC current can circulate uniformly into the charger through the electrical inserts 34 of the plug 30 and the elastic conductive parts (51) (52). Additionally it is durable and can be assembled quickly and tightly.

As indicated in Fig. 7, when the rechargeable battery does not need to be recharged, the plug 30 may be collapsed into the space of the concave compartment 22 of the panel 20, then the rear ends of the pieces (35) of the plug (30) will disconnect from the elastic conductive parts (51) (52) of the circuit board (50).

As indicated in Fig. 8, the AC power 110-240V enters the AC receiver terminal 60 of the rechargeable battery, and then passes through the rectifier circuit 61, the filter circuit 62, the voltage stabilizing circuit 63, , the activator circuit 64, and the charger circuit 65, for charging the rechargeable batteries 67. When an ordinary charger is used, the charge current flows through the DC terminal 69 and the elastic charging part 42 (as indicated in Fig. 3) into the rechargeable batteries 67. When the rechargeable batteries are fully charged, the DC can be switched to the mobile phone through its DC-emitting terminal (68) and the conductive part (40) as shown in Fig.

Referring now to Fig. 9, the AC power 110-240V enters the AC receiver terminal 60 of the charger, is then rectified to DC current through a bridging rectifier D1 of the rectifier circuit 61. Current limit resistance (Rl) is used to limit current within a defined range; the resistor R2 and the diode D2 combined with the transistor Q1 are used as a filter and together with a Zener diode D3 in the voltage stabilizer circuit provide a comparative reference voltage for the Overcurrent protection section on the activator circuit.

A switch circuit, which provides a voltage suitable for controlling the transistor (Q2), is composed of a transistor (Q1) and an optical coupler (E1). The rechargeable batteries 67 are charged through the transformer (T) and charging circuit (65). The load circuit (65) is connected to the transformer secondary coil emitter terminal. The following elements are connected in the charging circuit 65 in parallel: a dual color LED, a capacitor E4 connected in series to a diode D4 and the rechargeable batteries 67. Through a Zener diode (D5) and resistor (R7), a linear IC (E2) is connected at the point of connection of the capacitor (C4) and diode (D4) to provide a reference voltage. Another end of the linear IC (E2) is connected to the crossover point of the dual-color LED to compare the load voltage with the reference voltage. While the voltage is lower than the reference voltage (the potential of pin # 3 is less than pin # 2), the activator circuit 64 is driven to work, and the rechargeable battery 67 is charged through the transformer ) and the charging circuit (65). Simultaneously, the double-colored LED (see light window (29) in Fig. 3) lights up red, indicating that it is charging. When the rechargeable batteries are fully charged (the potential of pin # 2 is less than pin # 3), the diode (D4) is driven and the double LED lights green. At the same time, a lower potential is emitted to the optical switch IC (El), from the linear IC (E2), to turn off the transistor (Q2) and stop charging. As a result, you save energy and extend the life of the circuit and the batteries.

Before the rechargeable battery 67 is connected to the emitting terminals on the secondary side of the transformer T, two heat-sensitive resistors RIO of an overheat protection circuit 66 are connected in series thereto . As the temperature inside the rechargeable battery 67 increases, the resistance of the thermosensitive resistors (R11) (R11) decreases correspondingly, which provides protection against overheating, to interrupt charging of the rechargeable batteries.

As indicated in Fig. 10, the concave compartment 220 is located at the back of the carton 210 to hold the plug 30 allowing the rechargeable battery to be charged by the mains power without being detached from the mobile phone.

In summary, the " AC / DC mobile phone rechargeable battery " is durable and can be assembled quickly and tightly; its conductivity is superior to that of other batteries; is suitable for charging a mobile phone in " standby "; has indicators to reveal charging conditions (charging or fully charged); it can stop charging automatically, and consequently, the life of the circuits and the rechargeable batteries is prolonged. It can meet all requirements in practice.

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Claims (4)

A rechargeable battery of AC / DC type for mobile phone, especially a type of mobile phone battery which can be charged directly from the mains power, characterized in that its structure includes: - a housing which is composed of a panel and a rear box body; a concave compartment being located at the front of the panel for securing a reversible and positionable plug; - a charger installed in a housing, the alternating current being received through its AC receiver plug and then rectified, filtered and stabilized to drive a transformer and a load circuit via a transistor activator circuit to charge the rechargeable DC batteries ; its DC emitter terminal being connected to the elastic conductive parts to provide DC to the mobile phone. the plastic support shaft being elongated at both its right and left sides of the plastic body of the carton to engage the left and right grooves of the concave compartment in the panel. The elongated ends are also secured by the front notches of the support plates, on the left and on the right, which are installed in the back case face to face. The electrical inserts, left and right, penetrate through the plastic body. - two elastic conductive parts, used as AC receiving terminals, extending outwardly from the circuit board and pushing the rear ends of the electrical inserts of the turned turntable. - an optical coupling switch, connected to the base of the transistor of the activator circuit of the charger. - its charging circuit, connected to the transformer secondary coil emitter terminal. The following elements are connected along the charge circuit: a dual color LED, a capacitor (C4) connected in series with a diode (D4), and rechargeable batteries. A linear IC is connected at the point of connection of capacitor C4 and diode D4 through a Zener diode D5 to provide a reference voltage. Another end of the linear IC is connected to the double-colored LED cross-over point to compare the load voltage with the reference voltage. While the voltage is below the reference voltage, the dual color LED turns on the red light. When the rechargeable batteries are completely full, the diode (D4) is driven and the double LED turns green. Simultaneously, a lower potential is emitted to the optical switch, from the linear IC, to disconnect the transistor in the activator circuit. A rechargeable AC / DC mobile phone battery as claimed in claim 1, characterized in that the plug in its carton can be withdrawn and settles into the concave compartment of the panel, at the same time as the electrical insert of the the connector is detached from the elastic conductive part of the circuit board, with its rear end facing upwards. A rechargeable AC / DC mobile phone battery as claimed in claim 1, characterized in that the concave compartment is located at the back of the carton to secure the plug, thereby enabling the mobile phone to be charged, from the mains without being separated. A rechargeable AC / DC mobile phone battery as claimed in claim 1, characterized in that it is connected in series with a thermosensitive resistor, before connecting to the secondary coil of the charger. 2