CN201956926U

CN201956926U - High-frequency AC-DC (alternating current-direct current) bidirectional conversion device

Info

Publication number: CN201956926U
Application number: CN2010206600228U
Authority: CN
Inventors: 林煜喆
Original assignee: CHANGYANG XINGYE Co Ltd
Current assignee: CHANGYANG XINGYE Co Ltd
Priority date: 2010-12-14
Filing date: 2010-12-14
Publication date: 2011-08-31
Anticipated expiration: 2020-12-14

Abstract

The utility model relates to a high-frequency AC-DC (alternating current-direct current) bidirectional conversion device, which comprises a first converter, a conversion switch, a second converter, wherein the conversion switch is arranged between the first converter and the second converter; the first converter comprises a conversion element and a high-frequency transformer; the second converter comprises a rectifier element and a conversion element; and through the conversion control of the conversion switch, an AC power is converted to a DC power to be output, or the DC power is converted to the AC power to be output, and the implementation of bidirectional conversion of AC-DC and DC-AC is achieved, so that the structure of a circuit is simplified, the volume of equipment is reduced, and the cost is lowered.

Description

High frequency type alternating current-direct current bi-directional conversion device

Technical field

The utility model is a kind of high frequency type AC/DC bi-directional conversion device, be between first transducer and second transducer, to be provided with one to switch switch, by the switching controls of diverter switch, convert alternating electromotive force to direct current power output, or control converts direct current power to alternating electromotive force output.

Background technology

Direct current is changeed in general interchange or direct current is delivered in the power supply change-over device of stream, early stage employed transformer, mostly be low-frequency transformer greatly, control circuit is simple but the low-frequency transformer volume is big and cost is high, the dealer is the reduction equipment volume and reduces cost, change to melt and close circuit and replace, therefore must use high frequency transformer with high frequency.

Existing high frequency interchange commentaries on classics direct current or direct current are delivered the power supply changeover device of stream, can't use same circuit arrangement to exchange to change direct current and direct current to deliver the two-way dual-purpose enforcement of stream, see also Fig. 1 shown in, deliver the change-over circuit figure of stream (DC TO AC) for existing direct current, be with direct current power Vdc, by conversion element 11 and high frequency transformer 12 conversion output high-tension electricity direct currents, connection transfers to rectifier cell 13 and conversion element 14, converts direct current power Vdc to alternating electromotive force Vac output; And Figure 2 shows that the existing change-over circuit figure that changes direct current (AC TO DC) that exchanges, be via rectifier cell 15 with alternating electromotive force AC, rectification changes into direct current after conversion element 16 switches to high-frequency signal, by high frequency transformer 17 and rectifier cell 18 step-down rectifiers, and convert alternating electromotive force AC to direct current power Vdc output.Again, existing direct current is delivered the stream translation circuit, can't oppositely be used as the change-over circuit that exchange to change direct current and use, because of as if good general's alternating current (AC) by the output (O/P_L﹠amp among the change-over circuit figure (Fig. 1); O/P_N) locate input, electric power and signal that this moment, conversion element 14 was produced can be intercepted by rectifier cell 13, can't be passed to high frequency transformer 12, so conversion element 11 and high frequency transformer 12 can't be worked, therefore can't change into direct current power Vdc output.Exchange to change the power consumption equipment that direct current (AC TO DC) and direct current are delivered stream (DCTO AC) transducer for needs, interchange commentaries on classics direct current transducer and direct current then must be set in apparatus simultaneously deliver stream transformer, so, not only cause the apparatus volume to increase, its cost also increases.For another, No. 095119347 " two-way efficient electrical power transducer " utility model patent of TaiWan, China and No. 096110774 " combined type energy-saving UPS and bidirectional transducer module and power transferring method " utility model patent, but promptly provide the system of bi-directional conversion, precisely because the circuit system structure complexity, System Operation is complicated.

The utility model content

The inventor is a designs simplification of asking the alternating current-direct current bidirectional transducer, and then proposes the utility model, and the phase is with usability on the lifting industry.

Main purpose of the present utility model promptly is to provide a kind of high frequency type alternating current-direct current bi-directional conversion device.This high frequency type alternating current-direct current bi-directional conversion device comprises: first transducer, diverter switch, second transducer, wherein said diverter switch are arranged between first transducer and second transducer.

Further, this high frequency type alternating current-direct current bi-directional conversion device is to be provided with one to switch switch between first transducer and second transducer, switching controls by diverter switch, convert alternating electromotive force to direct current power output, or control converts direct current power to alternating electromotive force output use, and this first transducer has comprised conversion element and high frequency transformer, and second transducer has comprised rectifier cell, conversion element, with the control of diverter switch.

Utilize the technical solution of the utility model, can reach the utilization enforcement that interchange commentaries on classics direct current and direct current are delivered the stream bi-directional conversion, with the structure of simplification circuit, the reduction equipment volume, and reduce cost.

Description of drawings

Fig. 1 delivers the change-over circuit schematic diagram of stream for existing direct current.

Fig. 2 is the existing change-over circuit schematic diagram that changes direct current that exchanges.

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

Fig. 4 is the circuit diagram that the utility model is implemented.

Fig. 5 is the schematic diagram that the utility model embodiment direct current is delivered stream mode.

Fig. 6 is the schematic diagram that the utility model embodiment exchanges changes DC mode.

Drawing reference numeral

11: conversion element 12: high frequency transformer

13: rectifier cell 14: conversion element

15: rectifier cell 16: conversion element

17: high frequency transformer 18: rectifier cell

Transducer 21 in 20: the first: conversion element

22: high frequency transformer 30: diverter switch

Transducer 41 in 40: the second: rectifier cell

42: conversion element

Embodiment

Below, lift a specific embodiment with regard to the utility model detailed content and technological means, and conjunction with figs. is described in detail as follows:

Sincerely see also Fig. 3, Fig. 4 shown in, the utility model is a kind of high frequency type alternating current-direct current bi-directional conversion device, You Zhike is used in the alternating current-direct current bi-directional conversion device of power consumption equipment, it comprises: first transducer 20, diverter switch 30, second transducer 40, wherein this diverter switch 30 is arranged between first transducer 20 and second transducer 40, and this first transducer 20 has comprised that conversion element 21 and high frequency transformer 22, the second transducers 40 have comprised rectifier cell 41, conversion element 42.

By the switching controls of diverter switch 30, the alternating current power conversions is become direct current power Vdc output, or control converts direct current power Vdc to alternating electromotive force Vac output.

When no civil power is supplied with, diverter switch 30 is switched to direct current deliver stream mode (DC TO AC MODE), please join Fig. 5 shown in the utility model embodiment direct current deliver the schematic diagram of stream mode, the a group switch of diverter switch 30 is cut to first transducer 20 and second transducer 40 is on-state, and the b of diverter switch 30 group switch is cut to first transducer 20 and second transducer 40 is off-state; Operating state for using direct current power Vdc to power under this pattern, conversion element 21 and high frequency transformer 22 conversion output high-tension electricity direct currents by first transducer 20, connect the rectifier cell 41, the conversion element 42 that transfer to second transducer 40, this high-tension electricity direct current is converted to the frequency alternating electromotive force Vac output of civil power uses for load end.

When civil power normal supply and palpus use direct current power, diverter switch 30 can be switched to exchange and change DC mode (ACTO DC MODE), please join Fig. 6 shown in the utility model embodiment exchange the schematic diagram that changes DC mode, a group switch of diverter switch 30 is cut to civil power AC incoming line (LINE L﹠amp; LINE N) be on-state with second transducer 40, and the b of diverter switch 30 group switch is cut to first transducer 20 and second transducer 40 is on-state; Export operating state for electric main AC being changed into direct current power Vdc under this pattern, rectifier cell 41 by second transducer 40, this commercial power rectification is changed into direct current after conversion element 42 switches to high-frequency signal, and transfer to first transducer 20 through the b of diverter switch 30 group switch, by the conversion element 21 and high frequency transformer 22 conversion decompressions of first transducer 20, change into direct current power Vdc output.

The utility model is arranged at diverter switch 30 between first transducer 20 and second transducer 40, switching controls by diverter switch 30, convert electric main AC to direct current power Vdc output, or control converts direct current power Vdc to alternating electromotive force Vac output, reach with a ball bearing made using and to deliver the utilization of stream bi-directional conversion and implement exchange changeing direct current or direct current, deliver the apparatus that flows dual-purpose power supply changeover device for needs interchange commentaries on classics direct current and direct current, can simplify the structure of circuit, the reduction equipment volume, and reduce cost.

Comprehensive the above, the utility model has had the content that breaks through habit formula person really, and has the enforcement direction of initiative, simultaneously can reach the Practical Benefit that has on the industry again, more conform with the principle that industry is utilized, therefore the important document that meets patent application files an application in accordance with the law, earnestly asks favour and awards legal royalty interest.

The specific embodiment that the utility model is enumerated only is the normal embodiment that uses, and is not limitation the utility model technological means content, and the enforcement of other impartial effects such as all belongs to the utility model technology category.

Claims

1. a high frequency type alternating current-direct current bi-directional conversion device is characterized in that, described high frequency type alternating current-direct current bi-directional conversion device comprises: first transducer, diverter switch, second transducer, wherein said diverter switch are arranged between first transducer and second transducer.