CN218243353U

CN218243353U - Mobile power supply

Info

Publication number: CN218243353U
Application number: CN202222465804.1U
Authority: CN
Inventors: 刘明; 张洪杰; 张腾飞; 张政飞
Original assignee: Zhengzhou Shixiang Electronic Technology Co ltd
Current assignee: Zhengzhou Shixiang Electronic Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-06
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a mobile power supply, including input interface, adopt a transformer to realize direct current conversion module, direct current to alternating current module, output module, control panel and the auxiliary power supply of direct current boost conversion, the auxiliary power supply electricity is connected control panel, input interface, direct current conversion module, direct current to alternating current module and output module series connection, control panel and direct current conversion module and direct current to alternating current module electric connection; the utility model has the advantages of reduced production cost.

Description

Mobile power supply

Technical Field

The utility model belongs to the technical field of portable power source, concretely relates to portable power source.

Background

The function of the mobile power station is as the name implies a mobile power supply device. With the increasing application of mobile electric equipment in the real society, the power supply requirements of the equipment must be kept synchronous, the electric equipment requirements not only have direct current, but also more need alternating current 220V/50Hz power supply, and the mobile power station is the equipment for converting the low-voltage direct current of the energy storage module into the 220V alternating current for output

The existing mobile power supply generally comprises energy storage equipment, a direct current-to-direct current circuit, a direct current-to-alternating current circuit and a control panel; when the energy storage device is used, power supply is achieved through the power supply module, the low-voltage direct-current power supply in the energy storage device is converted into the high-voltage direct-current power supply through the direct-current to direct-current conversion circuit, then the high-voltage direct-current power supply is converted into the alternating-current 220V/50Hz power supply through the direct-current to alternating-current conversion circuit, so that the low-voltage direct-current power supply can be converted into the alternating-current 220V/50Hz power supply, the number of the transformers in the direct-current to direct-current conversion circuit is four, and production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art and providing a portable power source with reduce manufacturing cost.

The technical scheme of the utility model as follows:

the utility model provides a mobile power supply, includes input interface, adopts a transformer to realize direct current conversion module, direct current-to-alternating current module, output module, control panel and the auxiliary power supply of direct current boost conversion, auxiliary power supply electricity connection control panel, input interface, direct current conversion module, direct current-to-alternating current module and output module series connection, control panel and direct current conversion module and direct current-to-alternating current module electric connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model adopts the direct current conversion module which has a transformer to realize the direct current boost conversion to realize the boost conversion of the direct current voltage power supply, thereby reducing the production cost;

2. the utility model adopts the control panel to realize the control of the direct current conversion module and the direct current-to-alternating current module, and realizes the functions of high voltage detection and protection, input overcurrent detection and protection, output overcurrent detection and protection, and over-temperature detection and protection, thus ensuring the use;

in a word, the utility model has the advantage of reduction in production cost.

Further, the dc conversion module includes an isolation driving circuit a and an isolation driving circuit B connected to the control board, the input interface, and the auxiliary power supply, and a resonant circuit, the resonant circuit includes a transformer T3 having two ENDs connected to the isolation driving circuit a and the isolation driving circuit B, an inductor L5 connected to one END of the transformer T3, a diode Q9 and a diode Q11 connected in series, a diode Q15 and a diode Q16 connected in series, a high voltage output HV1+ connected to a line connecting the diode Q15 and the diode Q16, and a termination END-injection-not finding a chinese name corresponding to the END connected to the diode Q9 and the diode Q11, the diode Q9 and the diode Q15 are connected in parallel to the other END of the inductor L5, the diode Q11 and the diode Q16 are connected in parallel to the other END of the transformer T3, a current of the diode Q15 and the diode Q16 is delivered to the high voltage output HV1+, the diode Q9 and the diode Q15 are connected in parallel, the diode Q11 and the diode Q16 are connected in parallel to the other END of the high voltage output END C12, a negative electrode C12 of the high voltage output C1 and a negative electrode C12 and a positive electrode C12 connected in parallel to the ac conversion module, and a negative electrode C12 of the high voltage output terminal C12 connected in parallel to the ac terminal C12; the direct current low-voltage power supply is transformed by one transformer, the number of transformers during direct current boosting is reduced, the production cost is reduced, alternating current components in direct current voltage are reduced through rectifying and filtering of the diode Q9, the diode Q11, the diode Q15, the diode Q16, the capacitor C2, the capacitor C12 and the capacitor C35, the direct current components are kept, the ripple factor of output voltage is reduced, and the waveform is relatively smooth.

Furthermore, the direct current conversion module, the direct current-to-alternating current module, the output module, the control panel and the auxiliary power supply are respectively arranged in two drawing cabinets which are drawn and arranged in the shell; the direct current conversion module, the direct current-to-current module, the output module, the control panel and the auxiliary power supply are fixedly installed through the drawing cabinet arranged in the shell in a drawing mode, and the direct current conversion module, the direct current-to-current module, the output module, the control panel and the auxiliary power supply are conveniently maintained.

Further, the output module comprises a switch connected with the auxiliary power supply and the direct current-to-alternating current module, and a USB output seat and an alternating current 220V output seat which are connected in parallel with the switch, wherein the switch, the USB output seat and the alternating current 220V output seat are all arranged on the shell; the output of the low-voltage direct-current power supply is realized through the USB output base, the power output of 220B/50Hz is realized through the alternating-current 220V output base, and people can conveniently select different power supplies according to electric equipment.

Drawings

Fig. 1 is a schematic diagram of a system of the present invention;

FIG. 2 is a schematic circuit diagram of the auxiliary power supply of FIG. 1 according to the present invention;

FIG. 3 is a schematic circuit diagram of the control board of FIG. 1 according to the present invention;

fig. 4 is a schematic circuit diagram of the dc conversion module of fig. 1 according to the present invention;

fig. 5 is a schematic circuit diagram of the resonant circuit of fig. 4 according to the present invention;

FIG. 6 is a schematic circuit diagram of the isolation driving circuit A of FIG. 4 according to the present invention

FIG. 7 is a circuit diagram of the isolation driving circuit B of FIG. 4 according to the present invention;

fig. 8 is a circuit diagram illustrating the dc-to-ac module of fig. 1 according to the present invention;

fig. 9 is a schematic view of the housing of fig. 1 according to the present invention;

fig. 10 is a schematic position diagram of the output module of fig. 1 according to the present invention.

In the figure, 1, a shell, 2, a switch, 3, an alternating current 220V output seat, 4, a USB output seat, 5, a pull cabinet, 6, an auxiliary power supply, 7, a direct current conversion module, 8, a direct current-to-alternating current module, 9, a control board, 10, isolation driving circuits A and 11, isolation driving circuits B and 12 and a resonant circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 10, a portable power source includes an input interface, a dc-to-dc conversion module 7 for performing dc-to-dc conversion by using a transformer, a dc-to-ac conversion module 8, an output module, a control board 9, and an auxiliary power source 6, wherein the auxiliary power source 6 is electrically connected to the control board 9, the input interface, the dc-to-dc conversion module 7, the dc-to-ac conversion module 8, and the output module, the input interface, the dc-to-ac conversion module 7, the dc-to-ac conversion module 8, and the output module are connected in series, the control board 9 is electrically connected to the dc-to-ac conversion module 7 and the dc-to-ac conversion module 8, and the control board 1239 is of NetLabe model;

when the power supply is used, the auxiliary power supply 6 is connected with the energy storage module, the output module is connected with the electric equipment, the low-voltage direct-current power supply is converted by the auxiliary power supply 6 to output two groups of direct-current voltages which are respectively supplied to the control panel 9, the direct-current conversion module 7 and the direct-current to alternating-current module 8, the control panel 9 sends out PWM control signals to the direct-current conversion module 7, the direct-current conversion module 7 receives the PWM control signals and converts the direct-current low-voltage power supply into a direct-current high-voltage power supply, then the direct-current conversion module 7 sends the direct-current high-voltage power supply to the direct-current to alternating-current module 8, at the moment, the control panel 9 sends out SPWM control signals to the direct-current to alternating-current module 8, the direct-current to alternating-current module 8 receives the SPWM control signals and converts the direct-current high-voltage power supply into 220V/50Hz power supply, and then the direct-current to alternating-current module 8 sends the 220V/50Hz power supply to the output module and the electric equipment to be electrified and work.

In this embodiment, the dc conversion module 7 includes an isolation driving circuit a10, an isolation driving circuit B11, and a resonant circuit 12, the isolation driving circuit a10 is connected to the control board 9 at the pins 33, 38, and 37, the driving isolation circuit B11 is connected to the control board 9 at the pins 33, 40, and 39, the driving isolation circuit a10 and the driving isolation circuit B11 are both connected to the auxiliary power supply 6 and the input interface, the resonant circuit 12 includes a transformer T3 having two ENDs connected to the isolation driving circuit a10 and the isolation driving circuit B11, an inductor L5 connected to one END of the transformer T3, diodes Q9 and Q11 connected in series, diodes Q15 and Q16 connected in series, a high voltage output terminal HV1+ connected to a line connecting the diodes Q15 and Q16, and a termination terminal END connected to a line connecting the diodes Q9 and Q11, the diodes Q9 and Q15 are connected in parallel to the other END of the inductor L5, the diodes Q11 and Q16 connected in parallel, the negative electrode of the transformer Q3 and the negative electrode C1 + of the transformer Q16 are connected to the negative electrode of the high voltage output terminal C12, the high voltage output terminal Q12 and the high voltage output terminal C2 connected to the capacitor C1 + of the diode C12, the high voltage output terminal Q12 and the capacitor C2 are connected in parallel to the capacitor C1 + of the diode C1 + of the transformer C12, the diode C12 and the diode C2 are connected in parallel connected to the diode C2, the diode C2 and the diode C1 + and the diode C12, the diode C12 are connected in parallel connected to the diode C1; when the high-frequency boosting power supply is used, the control board 9 sends out a PWM control signal to the direct current conversion module 7, the signal is isolated and amplified through the two isolation driving circuits, the signal is connected to the grid electrode of the switching tube and used for controlling the conduction of the switching tube, the high-frequency boosting is completed through the transformer T3 and the inductance coil L5 in a matching mode, the high-frequency boosting power supply is rectified and filtered through the diode Q9, the diode Q11, the diode Q15, the diode Q16, the capacitor C2, the capacitor C12 and the capacitor C35, and the direct current high-voltage power supply is output.

In this embodiment, the dc conversion module 7, the dc-to-ac module 8, the output module, the control board 9, and the auxiliary power supply 6 are respectively disposed in two pull-out cabinets 5, and the pull-out cabinets 5 are disposed in the housing 1 in a pull-out manner; when using, realize the protection to direct current conversion module 7, direct current-to-alternating current module 8, output module, control panel 9 and auxiliary power supply 6 through casing 1, and when direct current conversion module 7, direct current-to-alternating current module 8, output module, control panel 9 and auxiliary power supply 6 broke down, directly take pull cabinet 5 out casing 1, then maintain can, be convenient for direct current conversion module 7, direct current-to-alternating current module 8, output module, control panel 9 and auxiliary power supply 6's maintenance.

In this embodiment, the output module includes a switch 2 connected to the auxiliary power supply 6 and the dc-to-ac module 8, and a USB output socket 4 and an ac 220V output socket 3 connected in parallel to the switch 2, where the switch 2, the USB output socket 4, and the ac 220V output socket 3 are all disposed on the housing 1; when the USB socket is used, the switch 2 is turned on, the auxiliary power supply 6 outputs low-voltage direct-current power to the USB output socket 4, the direct-current to alternating-current module 8 outputs alternating-current 220V/50Hz power to the alternating-current 220V output socket 3, when the alternating-current 220V/50Hz power is needed, the electric equipment is connected to the alternating-current 220V output socket 3, and when the direct-current low-voltage power is needed, the electric equipment is connected to the USB output socket 4.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A mobile power supply, characterized in that: the DC-AC converter comprises an input interface, a DC conversion module, a DC-AC module, an output module, a control panel and an auxiliary power supply, wherein the DC conversion module, the DC-AC module, the output module, the control panel and the auxiliary power supply are used for realizing DC boost conversion by using a transformer, the auxiliary power supply is electrically connected with the control panel, the input interface, the DC conversion module, the DC-AC module and the output module are connected in series, and the control panel is electrically connected with the DC conversion module and the DC-AC module.

2. The mobile power supply of claim 1, wherein: the direct current conversion module comprises an isolation driving circuit A and an isolation driving circuit B which are connected with a control board, an input interface and an auxiliary power supply, and a resonance circuit, wherein the resonance circuit comprises a transformer T3 with two ENDs connected with the isolation driving circuit A and the isolation driving circuit B, an inductance coil L5 connected with one END of the transformer T3, diodes Q9 and Q11 which are connected in series, diodes Q15 and Q16 which are connected in series, a high-voltage output END HV1+ connected on a line connected with the diodes Q15 and Q16, and a termination END END connected on a line connected with the diodes Q9 and Q11, the diodes Q9 and Q15 are connected in parallel to the other END of the inductance coil L5, the diodes Q11 and Q16 are connected in parallel to the other END of the transformer T3, the currents of the diodes Q15 and Q16 are transmitted to high-voltage output ENDs HV1+, the conduction directions of the diodes Q9 and Q15 are opposite, the conduction directions of the diodes Q11 and Q16 are opposite, the high-voltage output ENDs Q1 + C12 and a negative electrode C12 of a capacitor C12 and an alternating current of the high-voltage output END C12, which are connected in parallel to the control board, the input interface and the control board, the direct current conversion module.

3. The mobile power supply of claim 2, wherein: direct current conversion module, direct current-to-current conversion module, output module, control panel and auxiliary power supply equally divide and do not set up in two pull cabinets, the pull cabinet pull sets up in the casing.

4. The mobile power supply of claim 3, wherein: the output module comprises a switch connected with the auxiliary power supply and the direct current-to-alternating current module, a USB output seat and an alternating current 220V output seat which are connected to the switch in parallel, and the switch, the USB output seat and the alternating current 220V output seat are all arranged on the shell.