CN210380313U

CN210380313U - Vehicle-mounted power supply circuit

Info

Publication number: CN210380313U
Application number: CN201921465670.5U
Authority: CN
Inventors: 张辉; 苏朋军; 杨继山
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-04-21
Anticipated expiration: 2029-09-04

Abstract

The utility model belongs to the vehicle mounted power field discloses a vehicle mounted power supply circuit, including vehicle mounted power socket, ignition switch, vehicle mounted inverter and battery, vehicle mounted inverter respectively with ignition switch with the battery is connected, vehicle mounted power socket includes 220V supply socket, USB interface and DC-DC module, wherein: the 220V power socket is connected with the vehicle-mounted inverter; the USB interface is connected with the DC-DC module; the DC-DC module is connected with the ignition switch, the vehicle-mounted inverter and the storage battery. The utility model discloses be in the same place 220V supply socket and USB interface integration to can satisfy the USB interface at any time and charge, need not on-vehicle dc-to-ac converter work, effectively solved supply socket and arranged the dispersion, charge inconvenient problem, reduced the system cost simultaneously.

Description

Vehicle-mounted power supply circuit

Technical Field

The utility model relates to a vehicle mounted power supply technical field especially relates to a vehicle mounted power supply circuit.

Background

With the rapid development of social economy and electronic technology, especially, the use of USB interfaces for charging mobile phones, PADs and other electrical appliances is becoming more and more popular. Commercial vehicles are used as 'mobile home' of drivers, and various electric appliances supporting USB interfaces, such as shavers, electric fans and the like, are widely used in a cab besides mobile phones and PADs. To meet the daily life requirements of drivers, USB interfaces have gradually become standard configurations on commercial vehicles.

More and more domestic supply socket all integrate the USB interface, and the USB interface power supply is provided by 220V supply socket conversion, and the user can directly charge for electrical apparatus such as cell-phone, PAD through the USB interface, saves space, convenient operation.

220V interface power and USB interface dispersion in the commercial car driver's cabin at present arrange, not only extravagant space, it is inconvenient to charge moreover, and the system is with high costs simultaneously. Considering that the 220V interface power supply needs the output when the vehicle-mounted inverter works, the requirement that a user uses a USB interface to charge at any time cannot be met, and therefore the existing household power socket integrated with the USB interface cannot be directly used on a vehicle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an on-vehicle power supply circuit to solve the problem that 220V supply socket and USB interface dispersion were arranged and can't use the problem that the USB interface charges at any time.

To achieve the purpose, the utility model adopts the following technical proposal: a vehicle-mounted power supply circuit comprises a vehicle-mounted power supply socket, an ignition switch, a vehicle-mounted inverter and a storage battery, wherein the vehicle-mounted inverter is respectively connected with the ignition switch and the storage battery, the vehicle-mounted power supply socket comprises a 220V power supply socket, a USB interface and a DC-DC module, and the vehicle-mounted power supply circuit comprises:

the 220V power socket is connected with the vehicle-mounted inverter;

the USB interface is connected with the DC-DC module;

the DC-DC module is connected with the ignition switch, the vehicle-mounted inverter and the storage battery.

Preferably, the vehicle-mounted power socket is further provided with a microswitch, a power supply end of the microswitch is connected with an ACC gear of the ignition switch, and a grounding end of the microswitch is connected with a negative electrode of the storage battery.

Preferably, an enabling signal acquisition end of the vehicle-mounted inverter is connected with the microswitch.

Preferably, the vehicle-mounted power socket is further provided with a first color indicator light for indicating the first working state and a second color indicator light for indicating the second working state.

Preferably, the first color indicator light is a green indicator light, and the second color indicator light is a red indicator light.

Preferably, the green indicator light and the red indicator light are integrated into a red-green two-color diode indicator light.

Preferably, the indicator light control 1 end of the vehicle-mounted inverter is connected with the power supply end of the red indicator light, and the indicator light control 2 end of the vehicle-mounted inverter is connected with the power supply end of the green indicator light.

Preferably, a power supply terminal of the vehicle-mounted inverter is connected to a positive electrode of the battery, and a ground terminal of the vehicle-mounted inverter is connected to a negative electrode of the battery. Preferably, an IG signal collecting terminal of the vehicle-mounted inverter is connected to an IG output terminal of the ignition switch.

Preferably, there is not more than one of the 220V power socket and the USB interface.

The utility model has the advantages that: the 220V interface power supply and the USB interface are integrated together, the USB interface can be charged at any time, the vehicle-mounted inverter is not needed to work, the problems of dispersion of power supply arrangement and inconvenience in charging are effectively solved, and the system cost is reduced.

Drawings

Fig. 1 is a schematic circuit diagram of a vehicle-mounted power supply circuit according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the utility model provides a vehicle power supply circuit, including battery, ignition switch, vehicle inverter, vehicle power socket and connecting wire harness.

In this embodiment, the battery provides 24V, and the battery has a positive electrode and a negative electrode.

The battery may supply a voltage of 12V.

The ignition switch has four gears: OFF, ACC, ON and ST.

In a preferred embodiment, of the four gears of the ignition switch, the OFF gear: the steering wheel is locked and the circuit is completely closed except for the anti-theft system and the small light. ACC gear: at the moment, the whole vehicle is electrified, the radio, the lamp and the like can normally work, but the air conditioner cannot be used, and the waiting time is 5-10 seconds. And (3) ON gear: except the starter, other basic equipment can work normally. START gear: the engine is started, except for the fact that partial functions can work normally, other power supplies are disconnected, and the key automatically returns to the ON gear after the hand is released.

The vehicle-mounted inverter is used for converting DC 24V direct current provided by the storage battery into 220V alternating current, and is respectively connected with the ignition switch and the storage battery.

The vehicle-mounted power socket comprises a 220V power socket, a USB interface and a DC-DC module, wherein:

the 220V power socket is connected with the vehicle-mounted inverter and used for outputting 220V alternating current;

the USB interface is connected with the DC-DC module and is used for connecting a USB joint;

Further, the vehicle-mounted power socket is further provided with a microswitch, and a power supply end and a grounding end of the microswitch are respectively connected with an ACC gear of the ignition switch and a negative electrode of the storage battery.

Furthermore, an enabling signal acquisition end of the vehicle-mounted inverter is connected with the microswitch.

The vehicle-mounted power socket is also provided with a first color indicator light for indicating the first working state and a second color indicator light for indicating the second working state. In the embodiment, the first working state represents a power supply state, and when the vehicle-mounted power socket is in the power supply state, the first color indicator lamp is turned on; the second working state represents a dormant state, when the vehicle-mounted power socket is in a fault state, the second color indicator lamp is turned on, and a user can quickly check the working state of the vehicle-mounted power socket through the two indicator lamps.

Further, the first color indicator light is a green indicator light, and the second color indicator light is a red indicator light. Namely, the green indicator light is turned on green to indicate that the vehicle-mounted power socket is in a power supply state, and the red indicator light is turned on red to indicate that the vehicle-mounted power socket is in a fault state.

Further, a green indicator light and a red indicator light are integrated into a red-green bicolor diode indicator light. The red-green double-color diode indicator lamp is adopted to realize that two indicator lamps display colors, so that the number of parts is reduced.

Further, the end 1 of the indicator lamp control of the vehicle-mounted inverter is connected with the power supply end of the red indicator lamp, and the end 2 of the indicator lamp control of the vehicle-mounted inverter is connected with the power supply end of the green indicator lamp.

Furthermore, the power supply end of the vehicle-mounted inverter is connected with the positive electrode of the storage battery, and the grounding end of the vehicle-mounted inverter is connected with the negative electrode of the storage battery.

Further, an IG signal acquisition end of the vehicle-mounted inverter is connected with an IG output end of the ignition switch.

Further, the 220V power socket and the USB interface are not only one. For example, in a preferred embodiment, the onboard power circuit has one 220V power receptacle and two USB interfaces, thereby being adapted to connect one 220V plug and two USB plugs.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vehicle-mounted power supply circuit comprises a vehicle-mounted power supply socket, an ignition switch, a vehicle-mounted inverter and a storage battery, wherein the vehicle-mounted inverter is respectively connected with the ignition switch and the storage battery, the vehicle-mounted power supply socket comprises a 220V power supply socket, a USB interface and a DC-DC module, and the vehicle-mounted power supply circuit is characterized in that:

the 220V power socket is connected with the vehicle-mounted inverter;

the USB interface is connected with the DC-DC module;

2. The vehicular power supply circuit according to claim 1, wherein the vehicular power supply socket is further provided with a microswitch, a power supply end of the microswitch is connected with the ACC gear of the ignition switch, and a ground end of the microswitch is connected with the negative electrode of the storage battery.

3. The vehicle-mounted power circuit according to claim 2, wherein an enable signal acquisition terminal of the vehicle-mounted inverter is connected with the microswitch.

4. The vehicular power supply circuit according to claim 3, wherein the vehicular power socket is further provided with a first color indicator lamp for indicating the first operating state and a second color indicator lamp for indicating the second operating state.

5. The vehicular power supply circuit according to claim 4, wherein the first color indicator lamp is a green indicator lamp, and the second color indicator lamp is a red indicator lamp.

6. The vehicular power supply circuit according to claim 5, wherein the green indicator light and the red indicator light are integrated into a red-green two-color diode indicator light.

7. The vehicle-mounted power circuit according to claim 5 or 6, wherein the indicator light control 1 end of the vehicle-mounted inverter is connected with the power end of the red indicator light, and the indicator light control 2 end of the vehicle-mounted inverter is connected with the power end of the green indicator light.

8. The vehicular power supply circuit according to claim 7, wherein a power supply terminal of the vehicular inverter is connected to a positive electrode of the storage battery, and a ground terminal of the vehicular inverter is connected to a negative electrode of the storage battery.

9. The vehicular electric power supply circuit according to claim 8, wherein an IG signal acquisition terminal of the vehicular inverter is connected to an IG output terminal of the ignition switch.

10. The vehicular power supply circuit according to claim 1, wherein there is not more than one of the 220V power socket and the USB interface.