CN209823711U

CN209823711U - Low-power photovoltaic adapter box with standard voltage output

Info

Publication number: CN209823711U
Application number: CN201920966062.6U
Authority: CN
Inventors: 黄成勇; 成志华; 陈少逸; 劳宏彬; 吴建邦; 孙建飞; 贾庆龙
Original assignee: Tongren Fanneng Mobile Energy Co Ltd
Current assignee: Tongren Fanneng Mobile Energy Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2019-12-20
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a take miniwatt photovoltaic switching box of standard voltage output, comprises a box bod, external MC4 public head, external MC4 female joint, the anodal output terminal of direct current, direct current negative pole output terminal, prevent module and direct current regulator circuit against the current, external MC4 public head is fixed in one side of box body with external MC4 female joint, direct current positive pole output terminal and direct current negative pole output terminal are fixed in the opposite side of box body, external MC4 public head and external MC4 female joint are connected respectively in the income end of direct current regulator circuit, direct current positive pole output terminal and direct current negative pole output terminal connect respectively in the play end of direct current regulator circuit, prevent module and direct current regulator circuit electric connection against the current. The photovoltaic power supply system of the low-power equipment is greatly simplified, the convenient utilization rate of solar energy in low-power mobile energy sources is improved, and particularly the utilization rate of light and thin flexible solar cell modules in the mobile equipment is improved.

Description

Low-power photovoltaic adapter box with standard voltage output

Technical Field

The utility model relates to a photovoltaic module field, in particular to take miniwatt photovoltaic switching box of standard voltage output.

Background

The solar cell panel belongs to photovoltaic equipment, and the main part of the solar cell panel is made of semiconductor materials, and the semiconductor materials generate a photoelectric effect after being irradiated by light rays to generate current. Because the photovoltaic cell board receives external factors such as sunlight illumination intensity to influence, the voltage of output can fluctuate. If the current generated by the solar panel is directly charged into the storage battery or directly supplies power to the load, the storage battery and the load are easily damaged, and the service life of the electric equipment is seriously influenced. The MC4 joint is mainly used for standard output interfaces of solar photovoltaic modules and solar panels, and realizes the connection of the photovoltaic modules and other related conversion equipment, thereby realizing the output utilization of solar energy. At present, the photovoltaic power generation industry is applied more, and solar energy is utilized by connecting components such as a solar controller, an inverter, a storage battery, electric equipment and the like; for applications of low-power portable devices, an intermediate conversion device is required to be added, and the intermediate conversion device cannot be directly connected with the electric equipment.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a use electric installation and solar energy component's power to realize nimble configuration, save middle control device, convenient simple miniwatt photovoltaic adapter box of taking standard voltage output.

According to an aspect of the utility model provides a take miniwatt photovoltaic switching box of standard voltage output, including box body, external MC4 public head, external MC4 female joint, the anodal output terminal of direct current, direct current negative pole output terminal, prevent module and direct current regulator circuit against the current, external MC4 public head and external MC4 female joint are fixed in one side of box body, the anodal output terminal of direct current and direct current negative pole output terminal are fixed in the opposite side of box body, external MC4 public head and external MC4 female joint are connected respectively in the incoming end of direct current regulator circuit, and the anodal output terminal of direct current and direct current negative pole output terminal are connected respectively in the output of direct current regulator circuit, prevent module and direct current regulator circuit electric connection against the current.

In some embodiments, the DC voltage regulator further includes a DC interface, the DC interface is fixed to the other side of the box body, and the DC interface is electrically connected to the output end of the DC voltage regulating circuit.

In some embodiments, the dc voltage regulating circuit further includes a USB adapter fixed to the other side of the box body, and the USB adapter is electrically connected to the output end of the dc voltage regulating circuit.

The utility model has the advantages that: the photovoltaic power supply system of the low-power equipment is greatly simplified, convenience is provided for non-professionals or ordinary consumers when selecting the solar cell panel of the adaptable mobile equipment, the utilization rate of solar energy on low-power mobile energy is improved, and particularly the utilization rate of a light and thin flexible solar cell module on the mobile equipment is improved.

Drawings

Fig. 1 is a schematic structural diagram of a low-power photovoltaic junction box with a standard voltage output according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an anti-backflow module and a dc voltage regulating circuit of the low-power photovoltaic junction box with standard voltage output shown in fig. 1;

fig. 3 is a state diagram of a low-power photovoltaic junction box with standard voltage output shown in fig. 1.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

Fig. 1 to 3 schematically show a low-power photovoltaic junction box with a standard voltage output according to an embodiment of the present invention.

Referring to fig. 1 to 3, a low-power photovoltaic junction box with standard voltage output includes a box body 1, an external MC4 male connector 2, an external MC4 female connector 3, a direct current positive output terminal 4, a direct current negative output terminal 5, an anti-reflux module 6, a direct current voltage regulating circuit 7, a direct current DC interface 8 and a USB junction 9. The external MC4 male connector 2 and the external MC4 female connector 3 are packaged with the box body 1 into a whole and fixed on one side of the box body 1. The direct current positive output terminal 4 and the direct current negative output terminal 5 are fixed on the other side of the box body 1. The anti-reflux module 6 and the direct current voltage regulating circuit 7 are sealed and fixed in the box body 1. The anti-reflux module 6 can prevent the reverse flow of current and avoid the reverse charging of the storage battery of the electric equipment when the illumination is insufficient. The direct current voltage regulating circuit 7 can select a voltage boosting mode or a voltage reducing mode according to the output power of the solar battery.

The external MC4 male connector 2 and the external MC4 female connector 3 are respectively connected to the input end of the direct current voltage regulating circuit 7, the direct current positive output wiring terminal 4 and the direct current negative output wiring terminal 5 are respectively connected to the output end of the direct current voltage regulating circuit 7, and the anti-backflow module 6 is electrically connected with the direct current voltage regulating circuit 7.

The direct current DC interface 8 and the USB adapter interface 9 are both fixed on the other side of the box body 1, and the direct current DC interface 8 and the USB adapter interface 9 are respectively electrically connected with the output end of the direct current voltage regulating circuit 7.

As shown in fig. 2, the connection circuit of the reverse flow prevention module 6 and the dc voltage regulation circuit 7 is that the reverse flow prevention module 6 includes a diode 61 and an inductor 62, and the dc voltage regulation circuit 7 includes a single chip microcomputer 71, a first power supply 72, a second power supply 73, a resistor 74, a variable resistor 75, a positive input terminal 76, a negative input terminal 77, a positive output terminal 78, and a negative output terminal 79. The singlechip 71 is an XL6009 singlechip. The single chip 71 is provided with 5 pins: the first pin (I), the second pin (II), the third pin (III), the fourth pin (II) and the fifth pin (V). The fifth pin (fifthly) is connected with the sliding end of the variable resistor (75); the fourth pin (r) is connected to the positive input 76, one end of the inductor 62, and the positive terminal of the first power supply 72; the third pin (c) is connected with the other end of the inductor 62 and the anode of the diode 61; the cathode of the diode 61 is connected to the anode output terminal 78, the variable resistor 75 and the anode of the second power supply 73; the other end of the variable resistor 75 is connected to one end of the resistor 74; the other end of the resistor 74 is connected to the first pin (r), the negative input terminal 77 and the negative output terminal 79. The external MC4 male connector 2 and the external MC4 female connector 3 are respectively connected with the positive input end 76 and the negative input end 77, and the direct current positive output wiring terminal 4 and the direct current negative output wiring terminal 5 are respectively connected with the positive output end 78 and the negative output end 79. The DC interface 8 and the USB interface 9 are connected to the positive output terminal 78 and the negative output terminal 79. The power supply of the electric equipment of the corresponding interface can be realized through the direct current DC interface 8 and the USB adapter interface 9.

When sunlight is sufficient, the solar cell panel 10 can supply power to the electric equipment at a stable voltage of 5V, at the moment, the current is large, the charging is fast, and only the solar cell panel and the adapter box which are suitable for the electric equipment 11 need to be selected during application; when sunlight is insufficient or the output voltage of the solar panel is low (lower than 5V), the solar panel with the output power larger than the power of the electric equipment can be selected during application, the voltage regulating module of the adapter box outputs stable 5V voltage to supply power to the equipment through a boosting mode, and at the moment, the current is relatively small and the charging is slow; when no sunlight exists or the solar cell panel is shielded by the cloud layer and no current is output by the solar cell panel, the anti-backflow module of the junction box can cut off the current and prevent the current of the electric equipment from flowing backwards, so that the battery of the electric equipment is protected and premature power loss is prevented.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a take miniwatt photovoltaic adapter box of standard voltage output which characterized in that: including box body (1), external MC4 public head (2), external MC4 female joint (3), the anodal output terminal of direct current (4), direct current negative pole output terminal (5), prevent adverse current module (6) and direct current regulator circuit (7), one side in box body (1) is fixed in external MC4 public head (2) and external MC4 female joint (3), the anodal output terminal of direct current (4) and direct current negative pole output terminal (5) are fixed in the opposite side of box body (1), external MC4 public head (2) and external MC4 female joint (3) are connected respectively in the income end of direct current regulator circuit (7), and direct current anodal output terminal (4) and direct current negative pole output terminal (5) are connected respectively in the play end of direct current regulator circuit (7), prevent adverse current regulator module (6) and direct current regulator circuit (7) electric connection.

2. A low power photovoltaic junction box with standard voltage output as claimed in claim 1, wherein: the box body is characterized by further comprising a direct current DC interface (8), wherein the direct current DC interface (8) is fixed on the other side of the box body (1), and the direct current DC interface (8) is electrically connected with the output end of the direct current voltage regulating circuit (7).

3. A low power photovoltaic junction box with standard voltage output as claimed in claim 2, wherein: the USB adapter is characterized by further comprising a USB adapter port (9), wherein the USB adapter port (9) is fixed on the other side of the box body (1), and the USB adapter port (9) is electrically connected with the output end of the direct current voltage regulating circuit (7).