CN103516231A - Box-type high-voltage DC power supply - Google Patents

Abstract

The invention provides a box-type high-voltage DC power supply with a discharge function. The high-voltage DC power supply adopts a structure that a high-voltage transformer, a high-voltage rectifying module, a high-voltage capacitor, a high-voltage current-limiting resistor module and a high-voltage discharge switch are arranged on a high-voltage epoxy resin baseboard; according to the circuit connection, the low-voltage conducting wires of the high-voltage components of the high-voltage DC power supply are connected to a low-voltage socket; the high-voltage conducting wires of the high-voltage components of the high-voltage components are connected to a high-voltage socket. The high-voltage DC power supply has the advantages as follows: the high-voltage epoxy resin baseboard is adopted as the mounting baseboard of the high-voltage components, is high in voltage resistance, and can prevent the high-voltage components from sparking with an iron housing; all the high-voltage modules adopt high-pressure epoxy resin pouring technology, so as to enable the voltage resistance of the high-voltage modules to meet corresponding requirements and be mounted compactly, and reduce the overall size of the high-voltage DC power supply; the high-voltage discharge switch and the high-voltage current-limiting resistor are combined to discharge surplus high voltage, so that the automation degree and safety are high, and the high-voltage components in the high-voltage DC power supply can be protected.

Description

Box type high-voltage DC power supply

Technical field

The present invention relates to a kind of high-voltage DC power supply, especially a kind of box type high-voltage DC power supply with drainage function.

Background technology

At present, some high-voltage DC power supply, because the reason of power supply internal high pressure electric capacity exists the difficult problem discharging of residual high pressure after power-off, easily produces high voltage arc when changing the equipment that connects this power supply, gently causes damage equipment, heavy cause operating personnel's high pressure to get an electric shock, quite dangerous.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of box type high-voltage DC power supply with drainage function is provided, the residual high pressure of automatically releasing, assurance equipment and personnel's safety.

According to technical scheme provided by the invention, the described box type high-voltage DC power supply with drainage function comprises high-voltage epoxy base plate, on described high-voltage epoxy base plate, high-tension transformer is set, high-voltage rectifying module, high-voltage capacitance, high-voltage and current-limitation resistive module and the high pressure switch of releasing, the high-voltage output end of described high-tension transformer is connected to the interchange input interface of high-voltage rectifying module, the high voltage direct current output interface of high-voltage rectifying module is connected to high-voltage capacitance high-pressure side, high-voltage capacitance high-pressure side is also connected to one end of high-voltage and current-limitation resistive module, the other end of high-voltage and current-limitation resistive module connects high pressure release high-pressure side and the high-tension terminal of switch simultaneously, the importation of described high-tension transformer is connected to Low-voltage socket, the low-voltage direct output interface of high-voltage rectifying module is connected to high-voltage capacitance low-pressure end, high-voltage capacitance low-pressure end is connected to the release low-pressure end of switch of high pressure, the release low-pressure end of switch of high pressure is connected to Low-voltage socket, and the release input control end of switch of high pressure is connected to Low-voltage socket.

Further, the described high pressure switch of releasing comprises: tractive electromagnet, iron plate, high-voltage epoxy plate, metal conducting bar, high-pressure side, low-pressure end and input control end, the power input that described input control end is tractive electromagnet are installed; Described installation iron plate one end installation high-voltage epoxy plate, the other end is installed low-pressure end, on described high-voltage epoxy plate, tractive electromagnet and high-pressure side is installed, and described electromagnet and high-pressure side are positioned at installs iron plate both sides; One end of the drawing head connection metal conducting rod of tractive electromagnet, metal conducting bar middle part is rotationally connected with installation iron plate, and be connected with described installation iron plate conduction, when the drawing head of tractive electromagnet stretches out, the other end of described metal conducting bar contacts conduction with high-pressure side, when the drawing head of tractive electromagnet, retract, the other end of described metal conducting bar is separated with high-pressure side, and high-pressure side and low-pressure end are disconnected.

The gap that described high-tension transformer, high-voltage rectifying module, high-voltage capacitance, high-voltage and current-limitation resistive module and high pressure are released between switch all adopts high-voltage epoxy perfusion.

The present invention has the following advantages: (1) power acquisition of the present invention is the mounting base as high voltage component with high-voltage epoxy plate, and withstand voltage height prevents high voltage component and iron shell sparking.(2) high-pressure modular of power supply of the present invention all adopts high-voltage epoxy instillation process, thereby makes it withstand voltagely reach corresponding requirement and can make the installation that each parts can be compacter, reduces power source integral size.(3) power acquisition of the present invention carries out the release of residual high pressure with the release combination of switch and high-voltage and current-limitation resistance of high pressure, and automation is high, the good and protection power source internal high pressure parts of fail safe.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is the high pressure schematic diagram after switch energising of releasing.

Fig. 3 is the high pressure schematic diagram after switch circuit breaking of releasing.

Embodiment

Below in conjunction with concrete accompanying drawing, the invention will be further described.

As shown in Figure 1: box type high-voltage DC power supply comprises: high-tension transformer 1, high-voltage rectifyingmodule 2, high-voltage capacitance 3, high-voltage and current-limitation resistive module 4, highpressure release switch 5, Low-voltage socket 6, high-tension terminal 7, high-voltageepoxy base plate 8 etc.High-tension transformer 1, high-voltage rectifyingmodule 2, high-voltage capacitance 3, high-voltage and current-limitation resistive module 4 and thehigh pressure switch 5 of releasing is set on described high-voltageepoxy base plate 8.

The high potential assembly of described high-voltage DC power supply connects according to circuit, and the wire of low-pressure section is connected to Low-voltage socket 6, and the wire of high-pressure section is connected to high-tension terminal 7.Be specially: the high-voltage output end of described high-tension transformer 1 is connected to the interchange input interface of high-voltage rectifying module 2, the high voltage direct current output interface of high-voltage rectifying module 2 is connected to high-voltage capacitance 3 high-pressure sides, high-voltage capacitance 3 high-pressure sides are also connected to one end of high-voltage and current-limitation resistive module 4, and the other end of high-voltage and current-limitation resistive module 4 connects high pressure release high-pressure side and the high-tension terminal 7 ofswitch 5 simultaneously.The importation of described high-tension transformer 1 is connected to Low-voltage socket 6, the low-voltage direct output interface of high-voltage rectifying module 2 is connected to high-voltage capacitance 3 low-pressure ends, high-voltage capacitance 3 low-pressure ends are connected to the release low-pressure end ofswitch 5 of high pressure, the release low-pressure end ofswitch 5 of high pressure is connected to Low-voltage socket 6, and the release input control end ofswitch 5 of high pressure is connected to Low-voltage socket 6.

Operation principle of the present invention is as follows: first the input control end by theswitch 5 of releasing to high pressure powers up, and the release high-pressure side ofswitch 5 and low-pressure end of high pressure disconnected, and powers up then to the importation of high-tension transformer 1, and equipment works.While wanting arrestment work, first disconnect the power supply of the importation of high-tension transformer 1, then disconnect the release power supply of input control end ofswitch 5 of high pressure, the release high-pressure side ofswitch 5 of high pressure is communicated with low-pressure end, the interior residual high pressure of high-voltage capacitance 3 is released by high-voltage and current-limitation resistive module 4.

As Fig. 2, shown in 3, the release structure ofswitch 5 of described high pressure comprises:tractive electromagnet 13,iron plate 14, high-voltage epoxy plate 15,metal conducting bar 12, high-pressure side 10, low-pressure end 11,input control end 9 etc. are installed.Describedinput control end 9 is the power input of tractive electromagnet 13.Describedinstallation iron plate 14 one end installation high-voltage epoxy plates 15, the other end is installed low-pressure end 11, andtractive electromagnet 13 and high-pressure side 10 are installed on described high-voltage epoxy plate 15, and describedelectromagnet 13 and high-pressure side 10 are positioned atinstalls iron plate 14 both sides; Drawing head connectionmetal conducting rod 12 one end oftractive electromagnet 13,metal conducting bar 12 middle parts are rotationally connected withinstallation iron plate 14, and be connected with describedinstallation iron plate 14 conductions, when the drawing head oftractive electromagnet 13 stretches out, the other end of describedmetal conducting bar 12 contacts conduction with high-pressure side 10, when the drawing head oftractive electromagnet 13, retract, the other end of describedmetal conducting bar 12 is separated with high-pressure side 10, and high-pressure side 10 and low-pressure end 11 are disconnected.Highpressure release switch 5 operating state as shown in Figure 2:input control end 9 input voltages, the electromagnetism iron prop oftractive electromagnet 13 is traction upwards,metal conducting bar 12 disconnects with the metallic conduction ball of high-pressure side 10, high-pressure side 10 disconnects with low-pressure end 11.As shown in Figure 3: input control end 9 off voltages, the electromagnetism iron prop oftractive electromagnet 13 moves down, the metallic conduction ball conducting ofmetal conducting bar 12 and high-pressure side 10, high-pressure side 10 is communicated with low-pressure end 11.

Claims (3)

1. box type high-voltage DC power supply, comprise high-voltage epoxy base plate (8), it is characterized in that: high-tension transformer (1) is set on described high-voltage epoxy base plate (8), high-voltage rectifying module (2), high-voltage capacitance (3), high-voltage and current-limitation resistive module (4) and the high pressure switch (5) of releasing, the high-voltage output end of described high-tension transformer (1) is connected to the interchange input interface of high-voltage rectifying module (2), the high voltage direct current output interface of high-voltage rectifying module (2) is connected to high-voltage capacitance (3) high-pressure side, high-voltage capacitance (3) high-pressure side is also connected to one end of high-voltage and current-limitation resistive module (4), the other end of high-voltage and current-limitation resistive module (4) connects high pressure release high-pressure side and the high-tension terminal (7) of switch (5) simultaneously, the importation of described high-tension transformer (1) is connected to Low-voltage socket (6), the low-voltage direct output interface of high-voltage rectifying module (2) is connected to high-voltage capacitance (3) low-pressure end, high-voltage capacitance (3) low-pressure end is connected to the release low-pressure end of switch (5) of high pressure, the release low-pressure end of switch (5) of high pressure is connected to Low-voltage socket (6), and the release input control end of switch (5) of high pressure is connected to Low-voltage socket (6).

2. box type high-voltage DC power supply as claimed in claim 1, it is characterized in that, the described high pressure switch (5) of releasing comprising: tractive electromagnet (13), iron plate (14), high-voltage epoxy plate (15), metal conducting bar (12), high-pressure side (10), low-pressure end (11) and input control end (9) are installed, described input control end (9) is the power input of tractive electromagnet (13); Described installation iron plate (14) one end installation high-voltage epoxy plate (15), the other end is installed low-pressure end (11), upper tractive electromagnet (13) and the high-pressure side (10) installed of described high-voltage epoxy plate (15), described electromagnet (13) and high-pressure side (10) are positioned at installs iron plate (14) both sides; One end of the drawing head connection metal conducting rod (12) of tractive electromagnet (13), metal conducting bar (12) middle part is rotationally connected with installation iron plate (14), and be connected with described installation iron plate (14) conduction, when the drawing head of tractive electromagnet (13) stretches out, the other end of described metal conducting bar (12) contacts conduction with high-pressure side (10), when the drawing head of tractive electromagnet (13) is retracted, the other end of described metal conducting bar (12) is separated with high-pressure side (10), and high-pressure side (10) and low-pressure end (11) are disconnected.

3. box type high-voltage DC power supply as claimed in claim 1, it is characterized in that, described high-tension transformer (1), high-voltage rectifying module (2), high-voltage capacitance (3), high-voltage and current-limitation resistive module (4) and high pressure are released and are all adopted high-voltage epoxy to pour between switch (5).

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