CN2135861Y

CN2135861Y - Switch type integral uninterruptible power device

Info

Publication number: CN2135861Y
Application number: CN 92210061
Authority: CN
Inventors: 王刚; 王秀华
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-01-09
Filing date: 1992-01-09
Publication date: 1993-06-09
Anticipated expiration: 2002-01-09

Abstract

The utility model relates to a switch type integral uninterrupted power device. Standard voltage is output from input end to a switching element by voltage transformation, rectification and filtering and by a sample resistor. The circuit is also provided with an uninterrupted power supply system; a switch stable voltage power supply and the uninterrupted power supply is combined to be arranged in a metal casing in the way of tridimensional arrangement; the gaps among the components in the metal casing are filled by filling; an opening is sealed by insulation material to make into an integral device. The volume of the utility model is reduced by three quarters when output power is equivalent; operating performance is stable; the utility model is convenient for the use by matching with various instruments and devices.

Description

Switch type integral uninterruptible power device

The utility model relates to the integrated uninterrupted power supply device of a kind of switching regulator stabilized voltage power supply, particularly switching regulator.

Existing uninterruptible power system mostly is to be made of inverter, charging, batteries, and circuit is complicated, and there is a break time in AC-DC conversion, and ordinary circumstance is the 3-5 millisecond; And switching regulator stabilized voltage power supply device all is to be assembled by resolution element, and it is big to occupy volume, and is inconvenient as the power supply use of electronic circuit; Components and parts are exposed in the air, are subjected to the influence of external environment easily, and working life reduces greatly in than rugged environment especially, and can not guarantee high operating efficiency.

The purpose of this utility model is to overcome the defective that above-mentioned stabilized voltage power supply exists, providing a kind of is integrated in one discrete component, and switching regulator stabilized voltage power supply and uninterrupted power supply circuit are gathered, it is little to make a kind of volume, circuit is simple, the integrated uninterrupted power supply device of the switching regulator of stable work in work.

For finishing above-mentioned task, be that the independent entry device with the each several part of Switching Power Supply connects in the metal shell of packing into by three-dimensional arrangement mode, the components and parts gap fills filler it is fixed in the housing, and opening is made integral device with the insulating material sealing.Its circuit connecting mode is: power input is communicated with switch element Q after capacitor C filtering through transformer B, the rectification of rectifier D transformation again, is that high-frequency DC is pressed with voltage transition, and the output of switch element Q is through inductance L ₁, capacitor C ₅Again through resistance R ₃R ₄Sampling output one normal voltage.When unusual (outage or fault) appears in Alternating Current Power Supply, just by the direct voltage E of input ₂Power supply, this uninterrupted power supply is by diode Du ₁Du ₂Capacitor C u ₁And E ₂Form Du ₁The positive output end of input termination rectifier D, Du ₁Output through Du ₂Du ₁Connect switch element Q input.

The utlity model has following advantage:

1, volume is little, and is easy to install, when power output equates volume-diminished 3/4ths, be convenient to the supporting use of various instrument and equipments;

2, the automatic prolongation weak point of AC-DC conversion, the time is zero (not having the shake time);

3, owing to adopt integrated encapsulation and light filler, device body is light, is not subjected to the influence of external circuit interference and corrosive gas and vibration, and efficient height, failure rate are low.

In conjunction with the embodiments the utility model being done one below by accompanying drawing describes in detail.

Fig. 1 is circuit theory diagrams of the present utility model.

Fig. 2 is the structure assembling floor map that connects by Fig. 1.

See Fig. 1, when ac power supply just often, by a of terminals 2, b end points input ac voltage through transformer B ₁, rectifier D ₁, alternating current is become after the transformation rectification direct current (E of pulsation ₁), rectifier D ₁By capacitor C ₁C ₂Filtering and switch element Q ₁Connect, voltage transition is become high-frequency DC press, switch element is to form with triode and switch integrated chip, and its output is through inductance L ₁Capacitor C ₅After the filtering again through resistance R ₃R ₄Normal voltage of sampling output, sample resistance R ₃R ₄Mid point and switch element Q ₁Link to each other D ₂For the speed-sensitive switch diode, be connected on inductance L ₁Input.When outage or other fault appear in Alternating Current Power Supply, just by the direct voltage E of input de ₂Give whole electric, this uninterruptible power system is by diode Du ₁, Du ₂Capacitor C u ₁And E ₂Form Du ₁Input be connected on rectifier D ₁Positive output end, Du ₁Output and Du ₂Cu ₁Connect and also all be connected on switch element Q ₁Input.The input lead of power supply apparatus is connected on respectively on a, b end points (exchanging input) and cd end points (direct current supply input) of terminals 2, and wire of output terminal is connected on e, f, the g(direct current is exported) on the end points, generally require E ₁-E ₂≤ 5V is more suitable.Other adds Du ₁Du ₂Be to prevent E with their unilateral conduction ₂Anti-stream, and Du ₂Compensation Du is also arranged ₁The effect of reverse pressure drop.Whole system guarantees that by discharging and recharging of Cu1 the AC-DC conversion prolongation is 0.

See Fig. 2, each components and parts is linked up with three-dimensional arrangement mode by Fig. 1, and in the metal shell 1 of packing into, again with transformer B ₁, rectifier D ₁With switch element Q ₁Be fixed on the relevant position in the housing, for suspension device in the stationary housing and alleviate the device overall weight, adopt perlite to make filler 3 and fill the device gap, insulating material 4 adopts epoxy resin, and sealing makes it be fixed into the one device until parallel with housing.

Fig. 3 is the circuit theory diagrams of the utility model two-way output voltage type.

Fig. 4 is for pressing the assembling floor map that Fig. 3 connects.

See that its circuit theory diagrams of Fig. 3 are to have increased two-way output voltage type circuit, wherein Qu on the basis of Fig. 1 ₁Be DC to DC converter, the output voltage of power supply apparatus passes through Qu ₁, export negative voltage between the e that guarantees at terminals 2, the g end points.In addition, this circuit connects, and operation principle and method for packing are with above-mentioned embodiment.

Claims

1, the integrated uninterrupted power supply device of switching regulator is communicated with switch element Q through transformer B, rectifier D, filter capacitor C by input, and the output of switch element Q is through inductance L ₁, capacitor C ₅Again through R ₃R ₄Sampling output one normal voltage is characterized in that being provided with in circuit by diode Du ₁, Du ₂Capacitor C u ₁And E ₂The uninterruptible power system of forming, Du ₁The positive output end of input utmost point rectifier D, Du ₁Output passes through Du ₂Cu ₁Connect the input of switch element Q, each several part element device is connected in the metal shell (1) of packing into three-dimensional arrangement mode, the components and parts gap fills filler (3) opening and makes integral device with insulating material 4 sealings in the housing.

2, according to the described power supply apparatus of claim 1, it is characterized in that in the circuit of uninterrupted power supply the two-way voltage output system being set, the output voltage of device is by converter Qu ₁, make between e, g end points and export negative voltage.

3, according to the described power supply apparatus of claim 1, it is characterized in that filler (3) can be a perlite, insulating material 4 is an epoxy resin.