CN2807594Y

CN2807594Y - vehicle-used multifunctional power source supplier

Info

Publication number: CN2807594Y
Application number: CN 200520018431
Authority: CN
Inventors: 周健生
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-10
Filing date: 2005-05-10
Publication date: 2006-08-16
Anticipated expiration: 2015-05-10

Abstract

The utility model relates to a vehicle-used multifunctional power source supplier which mainly comprises a casing, one end of the casing is provided with a vehicle cigarette lighter plug, the other end of the casing is provided with a commercial power supply socket, a USB socket and an IEEE (Institute of Electrical and Electronics Engineers) 1394 interface socket, a circuit board is arranged in the casing, and the circuit board is provided with a boosted circuit, a DC to AC circuit, a DC to DC circuit, a battery low-voltage protection circuit, an overpower protection circuit, a temperature protection circuit and an over-voltage protection circuit. According to the structure, the AC is supplied to various household small electric appliances, and simultaneously, the DC is supplied to charge mobile telephones and cameras, and the efficacy of portability, security protection and multifunctional use can be achieved.

Description

The Vehicular multifunctional power supply unit

Technical field

The relevant Vehicular multifunctional power supply unit of the utility model, refer to especially a kind of can reach be easy to carry, the power supply on vehicle supply of the effect of safeguard protection and multi-functional use.

Background technology

Existing power supply on vehicle supply, 12 volts of direct currents of automobile cigarette lighter socket output can be converted to the alternating current of 115 volts or 230 volts, so that the normal operation of every family expenses small electric apparatus to be provided, allow the car owner needn't worry to use the power source of household electrical appliance.

The inside of existing power supply on vehicle supply only is provided with the alternating current circuit that always circulates, and its outside only is provided with a mains power socket; Therefore, existing power supply on vehicle supply can only provide the alternating current of 115 volts or 230 volts to use to electrical equipment, if will be to information-based and computerized product charging such as mobile phone or camera, just must when going out, carry the charger of various products, and user or car owner are caused sizable inconvenience.

Summary of the invention

The utility model provides a kind of brand-new Vehicular multifunctional power supply unit, can reach be easy to carry, the power supply on vehicle supply of the effect of safeguard protection and multi-functional use.

For reaching above-mentioned purpose, Vehicular multifunctional power supply unit of the present utility model, mainly comprise a housing, one end of this housing is provided with an automobile cigarette lighter plug, the other end of this housing is provided with mains power socket, IEEE (the international electronic industrial technology of Institute of Electrical and Electronics Engineers/ association) 1394 interface sockets and two USB socket, be provided with a circuit board in this housing, this circuit board is provided with a booster circuit, direct current is delivered current circuit, the DC-DC circuit, the battery low-voltage protection circuit, the overpower protection circuit, temperature protection circuit and excess voltage protection; This automobile cigarette lighter plug is connected with booster circuit, DC-DC circuit and IEEE1394 interface socket; this booster circuit delivers current circuit with automobile cigarette lighter plug, direct current and the battery low-voltage protection circuit is connected; this direct current is delivered current circuit and is connected with mains power socket, overpower protection circuit, temperature protection circuit and excess voltage protection, and this DC-DC circuit is connected with two USB socket.

According to above-mentioned structure, Vehicular multifunctional power supply unit described in the utility model, automobile cigarette lighter plug wherein must be inserted on the cigarette lighter socket of an automobile, this mains power socket must plug a family expenses small electric apparatus, and this IEEE1394 interface socket and two USB socket must be connected with a mobile phone or camera respectively; This booster circuit can be converted to 140 volts direct current with 12 volts the direct current that cigarette lighter socket provided of automobile, and direct current is delivered the alternating current that current circuit is converted to 140 volts direct current with pulse width modulation mode 115 volts or 230 volts, and export the alternating current of these volts or 230 volts to mains power socket: this DC-DC circuit can be converted to five volts direct current with 12 volts the direct current that cigarette lighter socket provided of automobile with pulse width modulation mode, and exports this direct current of five volts to two USB socket; Moreover, this battery low-voltage protection circuit, overpower protection circuit, temperature protection circuit and excess voltage protection get the function situation of supervisory circuit at any time, when the rising of circuit running occurrence temperature, overload current, overvoltage, overpower and battery voltage are crossed unusual condition such as low, cut-out circuit running in real time; As mentioned above, the user must be inserted in the plug of every family expenses small electric apparatus on the mains power socket of the present utility model, use to provide AC power to supply every family expenses small electric apparatus running, utilize IEEE1394 interface socket and two USB socket to be connected simultaneously with mobile phone or camera, so that the charging of direct current power supply mobile phone and camera to be provided, solve the inconvenience that to carry various chargers when going out; And do security protection by battery low-voltage protection circuit, overpower protection circuit, temperature protection circuit and excess voltage protection, be easy to carry to avoid burning the accident of car, to reach, the effect of safeguard protection and multi-functional use.

Description of drawings

Fig. 1 is a three-dimensional combination figure of the present utility model.

Fig. 2 is a circuit block diagram of the present utility model.

Fig. 3 is a use schematic diagram of the present utility model.

Fig. 4, Fig. 5 are circuit diagram of the present utility model.

The figure number explanation

1 housing, 2 circuit boards

10 automobile cigarette lighter plugs, 11 mains power socket

12 IEEE1394 interface sockets, 13 USB socket

20 booster circuits, 21 direct currents are delivered current circuit

22 DC-DC circuit, 23 battery low-voltage protection circuits

24 overpower protection circuit, 25 temperature protection circuits

26 excess voltage protections, 30 family expenses small electric apparatus

31 mobile phones, 32 cameras

The cigarette lighter socket of 50 automobiles

Embodiment

Structure of the present utility model, device and feature thereof are lifted a preferable possible embodiments and are cooperated graphic being described in detail as follows:

Ask for an interview Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, Vehicular multifunctional power supply unit of the present utility model comprises that mainly a housing 1 forms, and it is characterized in that:

One end of this housing 1 is provided with an automobile cigarette lighter plug 10, and the other end of this housing 1 is provided with mains power socket 11, IEEE (the international electronic industrial technology of Institute of Electrical and Electronics Engineers/ association) 1394 interface sockets 12 and two USB socket 13;

Be provided with a circuit board 2 in this housing 1, this circuit board 2 is provided with a booster circuit 20, direct current is delivered current circuit 21, DC-DC circuit 22, battery low-voltage protection circuit 23, overpower protection circuit 24, temperature protection circuit 25 and excess voltage protection 26;

This automobile cigarette lighter plug 10 is connected with booster circuit 20, DC-DC circuit 22 and IEEEI394 interface socket 12; this booster circuit 20 delivers current circuit 21 with direct current and battery low-voltage protection circuit 23 is connected; this direct current is delivered current circuit 21 and is connected with mains power socket 11, overpower protection circuit 24, temperature protection circuit 25 and excess voltage protection 26, and this DC-DC circuit 22 is connected with two USB socket 13.

According to above-mentioned structure, Vehicular multifunctional power supply unit described in the utility model, automobile cigarette lighter plug 10 wherein must be inserted on the cigarette lighter socket 50 of an automobile, this mains power socket 11 must plug the attaching plug of a family expenses small electric apparatus 30, and this IEEE1394 interface socket 12 and two USB socket 13 must be connected with a mobile phone 31 or camera 32 respectively; This booster circuit 20 can be converted to 140 volts direct current with 12 volts the direct current that cigarette lighter socket provided of automobile, and direct current is delivered the alternating current that current circuit 21 usefulness pulse width modulation modes are converted to 140 volts direct current 115 volts or 230 volts, and export these volts or 230 volts to mains power socket 11: this DC-DC circuit 22 can be converted to five volts direct current with 12 volts the direct current that cigarette lighter socket provided of automobile with pulse width modulation mode, and exports this direct current of five volts to two USB socket 13.

Moreover, this battery low-voltage protection circuit 23, overpower protection circuit 24, temperature protection circuit 25 and excess voltage protection 26 get the function situation of supervisory circuit at any time, this battery low-voltage protection circuit 23 is when detecting cigarette lighter socket provided 12 volts the galvanic brownout of automobile, the power shortage of expression automobile storage battery, this battery low-voltage protection circuit 23 gets the input current that cuts off automobile cigarette lighter plug 10 automatically, avoids totally causing vehicle to stop working the power consumption in the automobile storage battery and maybe can't start; This overpower protection circuit 24 must be detected the consumed power in when running, and when consumed power was excessive, this overpower protection circuit 24 can cut off input current automatically, avoids that consumed power is excessive to be caused electric wire to cock off and burn the accident of car; This temperature protection circuit 25 must be detected the temperature in the housing 1; when the temperature in the housing 1 is too high; the indication circuit running takes place unusual; this temperature protection circuit 25 can cut off input current automatically; avoid Yin Wendu too high and burn: this excess voltage protection 26 must be detected mains power socket 11; the output voltage values of IEEE1394 interface socket 12 and two USB socket 13; when output voltage is too high or too low; indication circuit takes place unusual; this excess voltage protection 26 gets and cuts off electric current output immediately, avoids causing family expenses small electric apparatus 30; mobile phone 31 or camera 32 damage because of spread of voltage.

As mentioned above, the user must be inserted in the plug of every family expenses small electric apparatus 30 Vehicular multifunctional power supply unit of the present utility model, on the mains power socket wherein 11, supply every family expenses small electric apparatus 30 runnings with the AC power of 11 outputs on this mains power socket and use; Utilize IEEE1394 interface socket 12 and two USB socket 13 to be connected simultaneously with mobile phone 31 or camera 32, direct current power supply mobile phone 31 and camera 32 chargings with IEEE94 interface socket 12 and two USB socket 13 outputs effectively solve the inconvenience that will carry various chargers when going out; And can do security protection by battery low-voltage protection circuit 23, overpower protection circuit 24, temperature protection circuit 25 and excess voltage protection 26, be easy to carry to avoid burning the accident of car, to reach, the effect of safeguard protection and multi-functional use.

In sum, Vehicular multifunctional power supply unit described in the utility model, can reach be easy to carry, the effect of safeguard protection and multi-functional use.

Claims

1, a kind of Vehicular multifunctional power supply unit comprises that mainly a housing forms, and it is characterized in that:

One end of this housing is provided with an automobile cigarette lighter plug, and the other end of this housing is provided with mains power socket, IEEE1394 interface socket and two USB socket;

Be provided with a circuit board in this housing, this circuit board is provided with a booster circuit, direct current is delivered current circuit, DC-DC circuit, battery low-voltage protection circuit, overpower protection circuit, temperature protection circuit and excess voltage protection;

This automobile cigarette lighter plug is connected with booster circuit, DC-DC circuit and IEEE1394 interface socket; this booster circuit delivers current circuit with direct current and the battery low-voltage protection circuit is connected; this direct current is delivered current circuit and is connected with mains power socket, overpower protection circuit, temperature protection circuit and excess voltage protection, and this DC-DC circuit is connected with two USB socket.