High-voltage power supply safety lock and industrial semiconductor high-voltage power supply equipment

Abstract

The utility model relates to the technical field of industrial semiconductors, and discloses a high-voltage power supply safety lock and industrial semiconductor high-voltage power supply equipment, and the industrial semiconductor high-voltage power supply equipment comprises a main control board, a rear backboard, a front panel and the high-voltage power supply safety lock. The high-voltage power supply safety lock comprises a first back plate interface terminal and a second back plate interface terminal which are arranged on the back plate, a relay arranged in the main control board, and a circuit breaker and a high-voltage transformer which are arranged in the industrial semiconductor high-voltage power supply equipment; the first backboard interface terminal and the second backboard interface terminal form a safety lock socket, and the opening and locking functions of the high-voltage power supply safety lock are realized through the safety lock socket; the situation that high-voltage output of the equipment is started again due to misoperation of the front panel in the overhaul or maintenance state of the equipment is avoided, the response time when the high-voltage output is suddenly closed due to the fact that software participates in control in the operation process of the equipment is shortened, and therefore the safety and reliability of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial semiconductor technical field, concretely is a kind of high-voltage power supply safety lock and industrial semiconductor high-voltage power supply equipment. BACKGROUND

[0002] In the industrial field, the application of semiconductor high-voltage power supply is increasingly widespread. However, due to its DC side high-voltage output can reach 5000V or more, there is a certain risk in the use process. When the worker overhauls or maintains the equipment, if the switch of the front panel is mistakenly touched to open the high-voltage output, it may cause serious threat to the life safety of the worker.

[0003] At present, the existing industrial semiconductor high-voltage power supply in the market has the deficiency in safety protection, when the equipment is in the state of overhaul or maintenance, there is lack of effective safety lock device to prevent the front panel from being misoperated to open the high-voltage output and cause danger. It cannot ensure that the high-voltage output is completely prohibited, which increases the risk of accidents. Moreover, when the high-voltage output needs to be closed urgently due to unexpected situation during the operation of the equipment, the existing equipment has a long reaction time due to the involvement of software control, and cannot realize the instantaneous closing of high-voltage, which brings potential safety hazard to the workers and the equipment.

[0004] Therefore, in order to solve the safety problem of industrial semiconductor high-voltage power supply in the use process, it is urgent to need a new type of safety lock device to improve the safety and reliability of the equipment. UTILITY MODEL CONTENT

[0005] The utility model patent aims to provide a high-voltage power supply safety lock and industrial semiconductor high-voltage power supply equipment, to prevent the industrial semiconductor high-voltage power supply equipment from being misoperated in the state of overhaul or maintenance, and to shorten the reaction time when the high-voltage output is closed urgently due to the involvement of software control during the operation of the equipment, so as to improve the safety and reliability of the equipment.

[0006] The utility model discloses a high -voltage power supply safety lock for industrial semiconductor high -voltage power supply equipment, comprising a main control panel, a backplate and a front panel, a first backplate interface terminal and a second backplate interface terminal on the backplate, a relay inside the main control panel, a circuit breaker and a high -voltage transformer inside the industrial semiconductor high -voltage power supply equipment, wherein one end of the first backplate interface terminal is electrically connected with the control end negative input end of the relay, one end of the second backplate interface terminal is grounded, the first backplate interface terminal and the second backplate interface terminal constitute a safety lock socket, and the safety lock socket realizes the opening and locking function of the high -voltage power supply safety lock, a safety lock plug corresponding to the safety lock socket is arranged, the safety lock plug is inserted into the safety lock socket, the other end of the first backplate interface terminal is short -circuited with the other end of the second backplate interface terminal through a jumper wire, the high -voltage power supply safety lock is opened, the safety lock plug is pulled out of the safety lock socket, and the high -voltage power supply safety lock is locked.

[0007] In the utility model, when the industrial semiconductor high -voltage power supply equipment needs to start high -voltage output and supply power to the load, the safety lock plug is inserted into the safety lock socket, the other end of the first backplate interface terminal is short -circuited with the other end of the second backplate interface terminal through a jumper wire, and the high -voltage power supply safety lock is opened. At this time, the control end positive and negative input end of the relay is connected with the positive and negative pole of the direct current power supply, and the control end negative pole of the relay is turned on through the jumper wire short -circuited with the first backplate interface terminal and the second backplate interface terminal, therefore, the control end positive and negative pole of the relay forms a loop, the relay is attracted, and the control end positive and negative pole output end of the relay outputs a signal to the circuit breaker, so that the circuit breaker is turned on. The high -voltage alternating -current voltage output by the high -voltage alternating -current power supply can pass through the turned -on circuit breaker, and the high -voltage alternating -current voltage is output to the primary side of the high -voltage transformer through the circuit breaker, so that the secondary side of the high -voltage transformer can output high -voltage alternating -current voltage to the load power supply.

[0008] When the industrial semiconductor high-voltage power supply device needs to be closed in the maintenance or maintenance state, the safety lock is locked by pulling out the safety lock plug from the safety lock socket, that is, the high-voltage power supply safety lock is locked. At this time, the short-circuit jumper between the other end of the first back plate interface terminal and the other end of the second back plate interface terminal is removed, so that the control end negative pole of the relay cannot be connected to the ground through the first back plate interface terminal and the second back plate interface terminal, and the control end negative pole of the relay is suspended, so that the control end positive pole and the control end negative pole of the relay cannot form a loop, and the relay cannot be attracted, so that the output signal of the control end positive pole and the control end negative pole is suspended, and the circuit breaker connected to the output end cannot be turned on, so that the high-voltage alternating current output by the high-voltage alternating current power supply cannot pass through the circuit breaker, and the circuit breaker cannot output the high-voltage alternating current to the primary side of the high-voltage transformer, so that the secondary side of the high-voltage transformer cannot output the high-voltage alternating current to the load, and finally the high-voltage output of the industrial semiconductor high-voltage power supply device is cut off, realizing the function of closing the high-voltage output.

[0009] Therefore, as described above, since the high-voltage power supply safety lock is switched from the open state to the locked state, that is, the industrial semiconductor high-voltage power supply device is switched from the high-voltage output state to the high-voltage cut-off state, the opening and locking of the high-voltage power supply safety lock are directly controlled by the safety lock socket, that is, by pure hardware, instead of by software, so that the reaction time of the device is greatly shortened, and the industrial semiconductor high-voltage power supply device is switched from the high-voltage output state to the high-voltage cut-off state instantaneously, thereby avoiding the phenomenon that the device cannot be closed instantaneously when an emergency occurs and needs to be closed, and improving the safety and reliability of the device. At the same time, when the industrial semiconductor high-voltage power supply device needs to be closed in the maintenance or maintenance state, the high-voltage power supply safety lock is locked by the safety lock socket, and the high-voltage output of the device is cut off, and the whole process does not need to be controlled by software, so that even if the front panel is misoperated during maintenance, the high-voltage output will not be opened again to cause danger, and the safety of personnel and equipment is ensured. In general, the high-voltage power supply safety lock provided by the utility model patent only needs a circuit structure composed of a circuit breaker and a relay to complete the high-voltage output and cut-off of the industrial semiconductor high-voltage power supply device, and has the advantages of simple structure, simple opening and locking operation, low cost, safety and reliability. As described above, the high-voltage power supply safety lock provided by the utility model patent solves the safety problem existing in the use of the existing industrial semiconductor high-voltage power supply.

[0010] In the second aspect, the utility model patent embodiment further provides an industrial semiconductor high-voltage power supply device, which comprises a main control panel, a back plate, a front panel and the high-voltage power supply safety lock of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 A structure schematic view of a high-voltage power supply safety lock provided by the utility model embodiment;

[0012] Figure 2 A second back plate interface terminal grounding circuit schematic diagram provided by the utility model embodiment;

[0013] Figure 3 A structure schematic view of another high-voltage power supply safety lock provided by the utility model embodiment.

[0014] In the figure: 1, main control panel; 2, back plate; 3, first back plate interface terminal; 4, second back plate interface terminal; 5, relay; 6, circuit breaker; 7, safety lock plug; 8, phase drive board; 9, bidirectional thyristor; T1, high-voltage transformer; A1, negative input end of the control end of the relay; A2, positive input end of the control end of the relay; DC, direct current power supply; AC, high-voltage alternating current power supply; Q1, PNP triode; R1, first bias resistor; L, light emitting diode; Q2, NPN triode; R2, second bias resistor. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0016] In the description of the present application, it should be understood that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0017] As Figure 1 shown, Figure 1The utility model discloses a high voltage power supply safety lock's structure schematic diagram provides a kind of high voltage power supply safety lock, applied to industrial semiconductor high voltage power supply equipment, the industrial semiconductor high voltage power supply equipment includes main control panel 1, backplate 2 and front panel, the high voltage power supply safety lock includes: first backplate interface terminal 3 and second backplate interface terminal 4 on the backplate 2, relay 5 inside the main control panel 1, and circuit breaker 6 and high voltage transformer T1 inside the industrial semiconductor high voltage power supply equipment.

[0018] Wherein, one end of the first backplate interface terminal 3 is electrically connected with the control end negative input end A1 of the relay 5;One end of the second backplate interface terminal 4 is grounded;The first backplate interface terminal 3 and the second backplate interface terminal 4 constitute a safety lock socket, and the opening and locking functions of the high voltage power supply safety lock are realized through the safety lock socket;There is a safety lock plug 7 corresponding to the safety lock socket.

[0019] When the industrial semiconductor high voltage power supply equipment needs to start high voltage output to power supply, the safety lock plug 7 is inserted into the safety lock socket, the other end of the first backplate interface terminal 3 is short-circuited with the other end of the second backplate interface terminal 4 through a jumper, and the high voltage power supply safety lock is in an open state.

[0020] Wherein, the control end positive input end A2 of the relay 5 is connected with the positive pole of the direct current power supply DC, and the control end negative input end A1 is connected with the negative pole of the direct current power supply DC;The control end positive and negative output end of the relay 5 is electrically connected with the control pin positive and negative of the circuit breaker 6 respectively. Wherein, the voltage of the direct current power supply DC is 24V. Correspondingly, the relay 5 adopts a relay of OMRON brand and model G6B-114P-US-24VDC, and the coil working voltage of the relay is 24V direct current. This means that the coil of the relay needs to be provided with 24V direct current power supply to work normally, and the on-off of the control circuit. This kind of relay plays a role in signal conversion, control and protection in circuit, and is widely used in the fields of automation control, power system, communication equipment and the like.

[0021] When the high voltage power supply safety lock is in an open state, the control end positive and negative input end of the relay is connected with the positive and negative poles of the direct current power supply DC, which is controlled by software, and the control end negative A1 of the relay 5 is turned on after the jumper short-circuiting of the first backplate interface terminal 3 and the second backplate interface terminal 4, so that the control end positive and negative of the relay 5 forms a loop, the relay 5 is attracted, and the control end positive and negative output end of the relay 5 outputs a signal to the circuit breaker 6, so that the circuit breaker 6 is turned on.

[0022] The line-in pin of the circuit breaker 6 is electrically connected with the high-voltage alternating current power supply AC, the line-out pin of the circuit breaker 6 is electrically connected with one side of the primary side of the high-voltage transformer T1, and one side of the secondary side of the high-voltage transformer T1 is connected with the load.

[0023] Therefore, the high-voltage alternating current voltage output by the high-voltage alternating current power supply AC can pass through the circuit breaker 6 which is turned on at this time, and the circuit breaker 6 outputs the high-voltage alternating current voltage to one side of the primary side of the high-voltage transformer T1, so that one side of the secondary side of the high-voltage transformer T1 outputs the high-voltage alternating current voltage to the load for power supply.

[0024] When the industrial semiconductor high-voltage power supply device needs to be closed in the maintenance or maintenance state, the safety lock plug 7 is pulled out of the safety lock socket, and at this time, the high-voltage power supply safety lock is in the locked state.

[0025] At this time, the short-circuit jumper between the other end of the first backplane interface terminal 3 and the other end of the second backplane interface terminal 4 is removed, the control end negative pole A1 of the relay 5 cannot be conducted with the ground through the first backplane interface terminal 3 and the second backplane interface terminal 4, the control end negative pole A1 of the relay 5 is suspended, and the control end positive pole and the control end negative pole of the relay 5 cannot form a loop, so that the relay 5 cannot be attracted, and therefore, the output signal of the control end positive pole and the control end negative pole of the relay 5 is suspended, and therefore, the circuit breaker 6 connected with the output end cannot be turned on, so that the high-voltage alternating current voltage output by the high-voltage alternating current power supply AC cannot pass through the circuit breaker 6, and the circuit breaker cannot output the high-voltage alternating current voltage to one side of the primary side of the high-voltage transformer T1, so that one side of the secondary side of the high-voltage transformer T1 cannot output the high-voltage alternating current voltage to the load for power supply, and finally the high-voltage output of the industrial semiconductor high-voltage power supply device is cut off, and the function of closing the high-voltage output is realized.

[0026] It should be noted that when the high-voltage power supply safety lock is in the locked state, the device can be normally started, but the high-voltage alternating current voltage output cannot be started; that is, only when the high-voltage power supply safety lock of the device is in the opened state, the high-voltage alternating current voltage output can be started to supply power to the load. The primary side rated voltage of the high-voltage transformer T1 is 220V, and the secondary side rated voltage is 5800V, that is, the high-voltage alternating current voltage as high as 5800V can be output to the load through one side of the secondary side of the high-voltage transformer T1 to realize the high-voltage output of the device. The rated voltage parameters of the high-voltage transformer T1 can be customized according to the specific application scene of the device, and the embodiments of the utility model are not limited in particular.

[0027] It should be noted that the pins of the safety lock socket can be designed as double rows, a total of 12 pins, the spacing between each adjacent two pins is 4.2mm, and the pin jack hole shape is square. It can be understood that the pin design of the safety lock socket is correspondingly adapted to the safety lock plug, so that the safety lock plug can be inserted into the safety lock socket. This double row design can arrange more pins in a limited space, and can make the connection between the socket and the plug more stable. Usually two rows of pins are arranged in parallel, which can be more convenient to adapt to the plug with double row pins. Compared with the round hole, the square hole socket can better prevent the pin from rotating when the square pin is inserted, ensuring that the connection position of each pin is accurate. Moreover, the square hole design may provide better mechanical stability and electrical contact performance in some cases, and is suitable for some occasions with high connection reliability requirements, such as industrial semiconductor high-voltage power supply equipment, communication equipment, etc.

[0028] Therefore, the high-voltage power supply safety lock provided by the embodiments of the utility model realizes the opening and locking state of the high-voltage power supply safety lock through the safety lock socket and the safety lock plug. Since the high-voltage power supply safety lock realizes the opening and locking state by directly controlling through the safety lock socket, i.e. pure hardware, from the opening to the locking state of the industrial semiconductor high-voltage power supply equipment, i.e. from the high-voltage output to the high-voltage cut-off state, the reaction time of the equipment is greatly shortened, and the high-voltage output of the industrial semiconductor high-voltage power supply equipment is completed instantaneously from the high-voltage output to the high-voltage cut-off state, thereby avoiding the phenomenon that the equipment cannot be closed instantaneously when the high-voltage output needs to be closed in an emergency situation, and the safety and reliability of the equipment are improved. At the same time, when the high-voltage output of the industrial semiconductor high-voltage power supply equipment needs to be closed in the maintenance state, the high-voltage power supply safety lock is locked through the safety lock socket, and the high-voltage output of the equipment is cut off. The whole process does not need to be controlled by software, so even if the front panel is misoperated during maintenance, the high-voltage output will not be opened again to cause danger, and the safety of personnel and equipment is ensured. In general, the high-voltage power supply safety lock provided by the utility model patent only needs a circuit structure composed of a circuit breaker and a relay to complete the high-voltage output and cut-off of the industrial semiconductor high-voltage power supply equipment, which has the advantages of simple structure, simple opening and locking operation, low cost, safety and reliability. In summary, the high-voltage power supply safety lock provided by the utility model patent solves the safety problem of the existing industrial semiconductor high-voltage power supply in use.

[0029] In some possible embodiments, as shown in Figure 2 Figure 2 ​The utility model provides a second backboard interface terminal grounding circuit principle graph, one end of second backboard interface terminal 4 passes through PNP type triode Q1, first bias resistance R1, emitting diode L, NPN type triode Q2 and second bias resistance R2 and grounds.

[0030] One end of second backboard interface terminal 4 is electrically connected with the collector of PNP type triode Q1, the emitter of PNP type triode Q1 is connected with the positive pole of direct current power supply DC, the base of PNP type triode Q1 is electrically connected with one end of first bias resistance R1, the other end of first bias resistance R1 is electrically connected with the anode of emitting diode L, the cathode of emitting diode L is electrically connected with the collector of NPN type triode Q2, the emitter of NPN type triode Q2 is grounded, the base of NPN type triode Q2 is electrically connected with one end of second bias resistance R2, the other end of second bias resistance R2 is connected with the negative pole of direct current power supply DC.

[0031] Similarly, when the industrial semiconductor high voltage power supply equipment needs to start high voltage output to supply power for load, the safety lock plug 7 is inserted into the safety lock socket, the other end of the first backboard interface terminal 3 is short-circuited with the other end of the second backboard interface terminal 4 by a jumper, and the high voltage power supply safety lock is in an open state. At this time, the base of the PNP type triode Q1 is at a low level, the emitter thereof is connected with the positive pole of the direct current power supply DC, and the collector thereof is electrically connected with one end of the second backboard interface terminal 4, so that the PNP type triode Q1 is turned on. After the transmission signal is transmitted to the emitting diode L through the first bias resistance R1, the emitting diode L is lighted, the PNP type triode Q1 is turned on, and thus the control end positive and negative poles of the relay 5 form a loop, and the relay 5 is attracted.

[0032] When the industrial semiconductor high voltage power supply equipment needs to close the high voltage output in the maintenance state, the safety lock plug 7 is removed from the safety lock socket, and at this time, the high voltage power supply safety lock is in a locking state. At this time, the short-circuit jumper between the other end of the first backboard interface terminal 3 and the other end of the second backboard interface terminal 4 is removed, the control end negative pole A1 of the relay 5 cannot be conducted with the ground through the first backboard interface terminal 3 and the second backboard interface terminal 4, the control end negative pole A1 of the relay 5 is suspended, and thus the control end positive and negative poles of the relay 5 cannot form a loop, and the relay 5 cannot be attracted. At this time, the PNP type triode Q1 and the NPN type triode Q2 cannot be turned on, and the emitting diode L cannot be lighted.

[0033] The light emitting diode is composed of a PN junction and has unidirectional conductivity. When a forward voltage is applied to the light emitting diode, the holes injected from the P region to the N region and the electrons injected from the N region to the P region are recombined with the electrons of the N region and the holes of the P region respectively within several microns near the PN junction to generate fluorescent light through spontaneous radiation. The energy states of the electrons and the holes in different semiconductor materials are different. When the electrons and the holes are recombined, the energy released is different. The more energy released, the shorter the wavelength of the light emitted. Commonly used are red, green or yellow light emitting diodes. The reverse breakdown voltage of the light emitting diode is greater than 5 volts. Its forward voltage-current characteristic curve is very steep, and a current limiting resistor (i.e. bias resistor) must be connected in series when used to control the current through the light emitting diode.

[0034] In summary, when the safety lock plug 7 is inserted into the safety lock socket, the high-voltage power safety lock is in the open state, and the light emitting diode L is lit; when the safety lock plug 7 is removed from the safety lock socket, the high-voltage power safety lock is in the locked state, and the light emitting diode L cannot be lit. Therefore, the operator can directly observe whether the light emitting diode L is lit to determine the state of the high-voltage power safety lock of the current device, so as to avoid misoperation, which is convenient and fast and further improves the safety of the device.

[0035] It should be noted that the resistance value of the first bias resistor R1 is 3.01k, and the resistance value of the second bias resistor R2 is 10k. The light emitting diode L emits orange light when lit. Specifically, aluminum gallium indium phosphorus (AlGaInP) material can be used as the semiconductor material of the light emitting diode L. By adjusting the component ratio of aluminum (Al), gallium (Ga), indium (In) and phosphorus (P), the light emitting wavelength can be changed, so that orange light emission is realized. The light emitting diode made of such material has high light emitting efficiency and good stability, and provides a clear open signal when the high-voltage power safety lock is in the open state.

[0036] As shown in Figure 3 As shown in Figure 3 Another structure diagram of a high-voltage power safety lock is provided for the embodiment of the utility model, another high-voltage power safety lock is provided, which is applied to an industrial semiconductor high-voltage power equipment, the industrial semiconductor high-voltage power equipment includes a main control panel 1, a back plate 2, a phase drive panel 8 and a front panel, the high-voltage power safety lock includes: a first back plate interface terminal 3 and a second back plate interface terminal 4 arranged on the back plate 2, a relay 5 arranged in the main control panel 1, a circuit breaker 6 and a high-voltage transformer T1 arranged in the industrial semiconductor high-voltage power equipment, and a bidirectional thyristor 9 arranged in the phase drive panel 8.

[0037] The circuit breaker 6 is electrically connected with the high-voltage alternating current power supply AC through the bidirectional thyristor 9; the high-voltage alternating current power supply AC is electrically connected with the input end of the bidirectional thyristor 9, and the output end of the bidirectional thyristor 9 is electrically connected with the incoming line pin of the circuit breaker 6.

[0038] The high-voltage alternating current voltage output by the high-voltage alternating current power supply AC is modulated through the bidirectional thyristor 9 and then output to the primary side of the high-voltage transformer T1, and the secondary side of the high-voltage transformer T1 outputs high-voltage alternating current voltage to the load for power supply.

[0039] The bidirectional thyristor is a kind of semiconductor device, which can control the conduction of current in two directions. Unlike ordinary thyristors that can only control the current in one direction, bidirectional thyristors can effectively control alternating current. It has three electrodes, namely main electrode T1, main electrode T2 and control electrode G. In an alternating current circuit, the direction of current is periodically changed. Bidirectional thyristors can achieve conduction control in both positive and negative half cycles of alternating current according to control signals, which makes them widely used in the field of alternating current power control, such as dimming, speed regulation, temperature regulation, etc. The bidirectional thyristor 9 of the embodiment of the utility model can meet the needs of different application scenarios, making the applicability of the device wider and improving the practicability.

[0040] The embodiment of the utility model also provides an industrial semiconductor high-voltage power supply device, comprising: a main control board 1, a back plate 2, a front panel and any high-voltage power supply safety lock in the above embodiment 1 or 2.

[0041] The industrial semiconductor high-voltage power supply device inserts or removes the safety lock plug 7 into or from the safety lock socket to control the high-voltage power supply safety lock of the device in an open or locked state by pure hardware, not only effectively avoiding the misoperation of the front panel of the industrial semiconductor high-voltage power supply device in the maintenance or maintenance state, but also shortening the reaction time of emergency shutdown of high-voltage output caused by software participation in control during the operation of the device, thereby improving the safety and reliability of the device.

[0042] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-voltage power supply safety lock applied to an industrial semiconductor high-voltage power supply device, the industrial semiconductor high-voltage power supply device comprising a main control panel (1), a back panel (2) and a front panel, characterized in that, The high-voltage power supply safety lock comprises: The first back plate interface terminal (3) and the second back plate interface terminal (4) are arranged on the back plate (2), the relay (5) is arranged in the main control plate (1), and the circuit breaker (6) and the high-voltage transformer (T1) are arranged in the industrial semiconductor high-voltage power supply device; Wherein, one end of the first back plate interface terminal (3) is electrically connected with the control end negative input end (A1) of the relay (5); one end of the second back plate interface terminal (4) is grounded; the first back plate interface terminal (3) and the second back plate interface terminal (4) constitute a safety lock socket, and the opening and locking functions of the high-voltage power supply safety lock are realized through the safety lock socket; a safety lock plug (7) corresponding to the safety lock socket is arranged; when the safety lock plug (7) is inserted into the safety lock socket, the other end of the first back plate interface terminal (3) is short-circuited with the other end of the second back plate interface terminal (4) through a jumper, the high-voltage power supply safety lock is opened, and when the safety lock plug (7) is pulled out of the safety lock socket, the high-voltage power supply safety lock is locked; Wherein, the control end positive input end (A2) of the relay (5) is connected with the positive pole of the direct current power supply (DC), and the control end negative input end (A1) is connected with the negative pole of the direct current power supply (DC); the control end positive and negative output ends of the relay (5) are respectively electrically connected with the control pin positive and negative poles of the circuit breaker (6); Wherein, the incoming line pin of the circuit breaker (6) is electrically connected with the high-voltage alternating current power supply (AC), the outgoing line pin of the circuit breaker (6) is electrically connected with one side of the primary side of the high-voltage transformer (T1), and one side of the secondary side of the high-voltage transformer (T1) is connected with a load.

2. A safety lock for a high voltage power supply as claimed in claim 1, characterized in that One end of the second back plate interface terminal (4) is grounded through a PNP type triode (Q1), a first bias resistor (R1), a light emitting diode (L), an NPN type triode (Q2) and a second bias resistor (R2); Wherein, one end of the second back plate interface terminal (4) is electrically connected with the collector of the PNP type triode (Q1), the emitter of the PNP type triode (Q1) is connected with the positive pole of the direct current power supply (DC), the base of the PNP type triode (Q1) is electrically connected with one end of the first bias resistor (R1), the other end of the first bias resistor (R1) is electrically connected with the anode of the light emitting diode (L), the cathode of the light emitting diode (L) is electrically connected with the collector of the NPN type triode (Q2), the emitter of the NPN type triode (Q2) is grounded, the base of the NPN type triode (Q2) is electrically connected with one end of the second bias resistor (R2), and the other end of the second bias resistor (R2) is connected with the negative pole of the direct current power supply (DC).

3. A safety lock for a high voltage power supply as claimed in claim 1 or 2, characterized in that The industrial semiconductor high-voltage power supply device further comprises a phase driving board (8), and the high-voltage power supply safety lock further comprises a bidirectional thyristor (9) arranged in the phase driving board (8), and the circuit breaker (6) is electrically connected with the high-voltage alternating current power supply (AC) through the bidirectional thyristor (9). The high-voltage alternating current power supply (AC) is electrically connected with the input end of the bidirectional thyristor (9), and the output end of the bidirectional thyristor (9) is electrically connected with the incoming line pin of the circuit breaker (6).

4. A safety lock for a high voltage power supply as defined in claim 1, wherein The direct current power supply (DC) is 24V.

5. A safety lock for a high voltage power supply as defined in claim 1, wherein The primary rated voltage of the high-voltage transformer (T1) is 220V, and the secondary rated voltage is 5800V.

6. A safety lock for a high voltage power supply as defined in claim 1, wherein The safety lock socket is designed as double rows with 12 pins, the spacing between two adjacent pins is 4.2mm, and the pin jack is square.

7. A safety lock for a high voltage power supply as defined in claim 1, wherein The model of the relay (5) is G6B-114P-US-24VDC.

8. A safety lock for a high voltage power supply as defined in claim 2, wherein, The resistance value of the first bias resistor (R1) is 3.01k, and the resistance value of the second bias resistor (R2) is 10k.

9. A safety lock for a high voltage power supply as defined in claim 2, wherein, The light-emitting diode (L) emits orange light when being lighted.

10. An industrial semiconductor high-voltage power supply device, characterized by comprising: Comprise: A main control board (1), a back plate (2), a front panel and the high-voltage power supply safety lock according to any one of claims 1 to 9.

Images