CN215498380U

CN215498380U - Household low-voltage direct-current power supply system

Info

Publication number: CN215498380U
Application number: CN202121036442.3U
Authority: CN
Inventors: 俞心蕾
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-15
Filing date: 2021-05-15
Publication date: 2022-01-11
Anticipated expiration: 2031-05-15

Abstract

The utility model relates to a household low-voltage direct-current power supply system which comprises a total direct-current power supply, a direct-current power supply line, a direct-current power distribution socket and a direct-current electric appliance. The main direct current power supply consists of a plurality of sub direct current power supplies with different voltage grades, and the plurality of sub direct current power supplies are connected in series for use. The direct current power supply circuit is provided with a plurality of wires with different voltages, and the combination of more voltage grades can be obtained by using the limited number of the wires. The household low-voltage direct-current power supply system uniformly supplies power to indoor direct-current electric appliances, so that a charger or a voltage-reducing rectification power supply carried by the electric appliances is saved, and the household low-voltage direct-current power supply system is very significant in saving resources, reducing harmful garbage and saving energy.

Description

Household low-voltage direct-current power supply system

Technical Field

The utility model relates to a household low-voltage direct-current power supply system, in particular to a low-voltage direct-current power supply system which is suitable for reducing voltage of an alternating-current 220V power supply, rectifying the voltage into low-voltage direct current and supplying power to direct-current electric appliances in a house, and is suitable for the field of household power supply and distribution.

Background

A common household power supply system in China is 220V alternating current, and the 220V alternating current supplies power to all electric appliances such as indoor lamps, televisions, computers and the like. However, some household appliances are powered by low-voltage direct current, for example, a common mobile phone charging power supply is 5V direct current; the power supply in the desktop computer is 12V direct current and 5V direct current, 12V is used for supplying power to the hard disk, and 5V is used for supplying power to the mainboard CPU; the internal power supply of the liquid crystal television is provided with 24V direct current, 12V direct current and 5V direct current, wherein 24V is used for supplying power to the liquid crystal display, 12V direct current is used for supplying power to the sound box, and 5V direct current is used for supplying power to the CPU of the main board; the charging power supply of the electric bicycle is 36V direct current. The LED lamp beads of the household LED illuminating lamp are also powered by direct current, and the common method is that each LED lamp is provided with a rectifier, and after 220V alternating current is reduced and rectified into direct current, the power is supplied to the LED lamp beads.

The interior of a large number of household appliances is supplied with direct current, and the current household power supply system is 220V alternating current, so that each appliance is provided with a charger, or a direct current power supply is arranged inside the appliance, and the 220V alternating current is stepped down and rectified into required direct current to supply power to the appliances. Therefore, each electric appliance needs to be provided with a voltage reduction rectifying device, and a large amount of waste is caused; and these step-down rectification equipment often are in electrified standby state for a long time, have wasted a large amount of electric quantities again.

On the other hand, low voltage below 36V is safe for human body, while 220V ac may cause great harm to human body. From the safety point of view, it is also unreasonable to use 220V ac power supply for these low-voltage appliances which only need a few volts.

With the appearance of a large number of household appliances needing low-voltage direct-current power supply, a uniform low-voltage direct-current power supply system is built in a house to uniformly supply power to the direct-current electric appliances, so that a charger or a step-down rectification power supply carried by each appliance is saved, and the method is very significant for saving resources, reducing harmful garbage and saving energy.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows:

aiming at numerous low-voltage direct-current electric equipment in a room, a low-voltage direct-current power supply system which is safe, reliable, economical, reasonable and convenient to use is provided, so that chargers or voltage-reduction rectification power supplies carried by electric appliances are used as few as possible, and the aims of saving resources, reducing harmful garbage and saving energy are finally achieved.

The technical scheme adopted by the utility model is as follows:

1. the household low-voltage direct-current power supply system consists of a total direct-current power supply, a direct-current power supply line, a direct-current power distribution socket and a direct-current electric appliance.

2. The main direct-current power supply is arranged at a position close to a direct-current load center in a room, the main direct-current power supply uniformly supplies power to direct-current electric appliances in the room, and the main direct-current power supply is composed of a plurality of branch direct-current power supplies with different voltage grades in order to adapt to different voltage requirements. A plurality of sub direct current power supplies with different voltage grades are connected in series, so that more power supplies with higher voltage grades can be obtained.

3. The direct current power supply circuit is led out from a main direct current power supply, the direct current power supply circuit is composed of a plurality of wires, the wires are led out from different voltage parts of the main direct current power supply respectively, and voltages among the wires are different, so that the limited number of the wires can be used, and more voltage grade combinations can be obtained.

4. The direct current distribution socket is led from a direct current power supply circuit, and a plurality of direct current distribution sockets can be arranged at different positions in a room according to requirements. Several power sources with different voltages can be led out from the wires with different voltage levels of the direct current power supply circuit.

5. The DC power distribution socket uses a standard panel of 86mm x 86mm, and a plurality of jacks with different voltage levels are arranged on the panel. The jacks with the voltage class of 5V use standard USB jacks, and the jacks with the voltage classes of 12V, 24V and 36V use round jacks.

6. The DC electric appliance selects the required voltage grade from the DC power supply line for leading, the TV set is LED with the voltages of 24V, 12V and 5V, the desktop computer is LED with the voltages of 12V and 5V, and the LED lamp is LED with the voltage of 36V.

7. When the area of a house is large, a plurality of sets of the household low-voltage direct-current power supply systems can be arranged indoors so as to meet the direct-current power supply requirements of different rooms.

The utility model has the beneficial effects that:

1. the total direct current power supply is used for uniformly supplying power to the indoor direct current electric appliances, so that the chargers or the step-down rectification power supplies carried by the electric appliances are saved, and the method is very significant for saving resources, reducing harmful garbage and saving energy.

2. A plurality of sub direct current power supplies with different voltage grades are connected in series, so that a limited number of sub direct current power supplies are used, and more power supplies with higher voltage grades can be obtained.

3. The direct current power supply line is composed of a plurality of wires which are respectively led out from different voltage parts of the main direct current power supply, and the voltage between each wire is different, so that the limited number of the wires can be used, and more voltage levels can be combined.

4. The DC power distribution socket uses a standard panel of 86mm x 86mm, and a plurality of jacks with different voltage levels are arranged on the panel. The jacks with the voltage class of 5V use standard USB jacks, and the jacks with the voltage classes of 12V, 24V and 36V use round jacks. Therefore, the household direct current power supply system can be standardized and is convenient to use.

Drawings

Fig. 1 is a schematic diagram of a low-voltage dc power supply system according to the present embodiment.

Fig. 2 is a schematic diagram of a dc power distribution socket panel according to the present embodiment.

Detailed Description

As shown in fig. 1-2, the present embodiment is a small-sized household low-voltage dc power supply system, which uses 220V ac power as an external power source to form a dc power supply system with voltage levels of 36V, 24V, 12V, 5V, etc. to supply power to dc power appliances such as dc distribution sockets, televisions, desktop computers, LED lamps, etc.

1. The household low-voltage direct-current power supply system consists of a total direct-current power supply (1), a direct-current power supply line (2), a direct-current power distribution socket (3) and direct-current electric appliances (4, 5 and 6).

2. The main direct-current power supply (1) is arranged in a position close to a direct-current load center in a house, the main direct-current power supply (1) uniformly supplies power to direct-current electric appliances in the house, and in order to adapt to different voltage requirements, the main direct-current power supply (1) is composed of a plurality of branch direct-current power supplies (11, 12 and 13) with different voltage grades. The sub-DC power supply (11) is 5V, the sub-DC power supply (12) is 12V, and the sub-DC power supply (13) is 24V. The sub-direct current power supplies (11, 12 and 13) are connected in series in sequence, so that more power supplies with higher voltage grades can be obtained.

3. The direct current power supply line (2) is led out from the total direct current power supply (1), the direct current power supply line (2) is composed of a plurality of conducting wires, the conducting wires are led out from different voltage positions of the total direct current power supply (1), voltage among the conducting wires is different, voltage of the conducting wire (21) is 0V, voltage of the conducting wire (22) is 24V, voltage of the conducting wire (23) is 36V, and voltage of the conducting wire (24) is 41V. This allows the use of a limited number of wires, resulting in a greater number of voltage level combinations: the voltage between the lead wires (21) to (22) is 24V, the voltage between the lead wires (22) to (23) is 12V, the voltage between the lead wires (23) to (24) is 5V, the voltage between the lead wires (21) to (23) is 36V, the voltage between the lead wires (21) to (24) is 41V, and the voltage between the lead wires (22) to (24) is 17V.

4. The direct current distribution socket (3) is connected from the direct current power supply circuit (2) in a leading mode, and a plurality of direct current distribution sockets (3) can be arranged at different positions in a room according to requirements. A plurality of power supplies with different voltages can be led out from the leads with different voltage levels of the direct current power supply circuit (2).

5. The DC distribution socket (3) uses a standard panel of 86mm x 86mm, and a plurality of jacks with different voltage levels are arranged on the panel. A standard USB socket is used for the socket (31) with the voltage level of 5V, and circular sockets are used for the sockets (32, 33, 34) with the voltage levels of 12V, 24V and 36V.

6. The direct current electric appliances (4, 5 and 6) select the required voltage grade from the direct current power supply line (2) to be connected, the television (4) is connected with the voltages of 24V, 12V and 5V, the desktop computer (5) is connected with the voltages of 12V and 5V, and the LED lamp (6) is connected with the voltage of 36V.

Claims

1. A household low-voltage direct current power supply system is characterized in that: the household low-voltage direct-current power supply system consists of a main direct-current power supply, a direct-current power supply line, a direct-current power distribution socket and a direct-current electric appliance.

2. A household low voltage dc supply system according to claim 1, characterized in that: the main direct-current power supply is arranged at a position close to a direct-current load center in a room, the main direct-current power supply uniformly supplies power to direct-current electric appliances in the room, and the main direct-current power supply is composed of a plurality of branch direct-current power supplies with different voltage grades in order to adapt to different voltage requirements.

3. A household low voltage dc supply system according to claim 1, characterized in that: a plurality of sub direct current power supplies with different voltage grades are connected in series, so that more power supplies with higher voltage grades can be obtained.

4. A household low voltage dc supply system according to claim 1, characterized in that: the direct current power supply circuit is led out from a main direct current power supply, the direct current power supply circuit is composed of a plurality of wires, the wires are led out from different voltage parts of the main direct current power supply respectively, and voltages among the wires are different, so that the limited number of the wires can be used, and more voltage grade combinations can be obtained.

5. A household low voltage dc supply system according to claim 1, characterized in that: the direct current distribution socket is led from a direct current power supply circuit, and a plurality of direct current distribution sockets can be arranged at different positions in a room according to requirements.

6. A household low voltage dc supply system according to claim 1, characterized in that: several power sources with different voltages can be led out from the wires with different voltage levels of the direct current power supply circuit.

7. A household low voltage dc supply system according to claim 1, characterized in that: the DC power distribution socket uses a standard panel of 86mm x 86mm, and a plurality of jacks with different voltage levels are arranged on the panel.

8. A household low voltage dc supply system according to claim 1, characterized in that: the jacks with the voltage class of 5V use standard USB jacks, and the jacks with the voltage classes of 12V, 24V and 36V use round jacks.

9. A household low voltage dc supply system according to claim 1, characterized in that: the DC electric appliance selects the required voltage grade from the DC power supply line for leading, the TV set is LED with the voltages of 24V, 12V and 5V, the desktop computer is LED with the voltages of 12V and 5V, and the LED lamp is LED with the voltage of 36V.

10. A household low voltage dc supply system according to claim 1, characterized in that: when the area of a house is large, a plurality of sets of the household low-voltage direct-current power supply systems can be arranged indoors so as to meet the direct-current power supply requirements of different rooms.