Direct-current composite type pressurization tester and power distribution system thereof

Abstract

The utility model provides a direct current composite type pressurization tester and a power distribution system thereof, the direct current composite type pressurization tester is provided with a first terminal block, a control device and a remote control device, the control device is connected with the first terminal block, and the control device comprises a first protector, a second protector and a first mode switching knob switch; the remote control device comprises a first relay, a second relay and a remote control processing module; the first mode switching normally-closed input end is connected with the first protector, the first mode switching normally-open input end is connected with the second protector, the first mode switching normally-open common output end is connected with the normally-open input end of the first relay, the first mode switching normally-open common output end is connected with the normally-open input end of the second relay, and the second mode switching normally-open common output end is connected with the normally-open input end of the second relay. The coil input end of the first relay is connected with the remote control processing module; and the coil input end of the second relay is connected with the remote control processing module. The safety and the reliability of the DC composite type pressurization tester in the pressurization test are improved.

Description

Technical Field

[0001] The utility model relates to the field of pressure function tests, in particular to a DC composite pressure tester and its power distribution system. Background Technique

[0002] With the rapid development of rail transit, the intelligent guiding safety of subway vehicles has attracted increasing attention, especially how to use more scientific and safe test means to verify the pressure tests of electrical cabinets of subway vehicles and connectors or terminal blocks at the undercarriage equipment.

[0003] In the existing technology, most pressure test equipment is directly connected to electrical cabinets for testing, which is often time-consuming and prone to the risk of electric shock to debugging personnel. Especially during the single-pressure and multi-pressure composite functional test process, due to the possible virtual connection and the state of conduction and non-conduction transformation between the pressure line pins and the power-taking points, it may cause the parts inside the pressure test equipment to have contact welding to form a short circuit, increasing the electric shock risk of debugging personnel and reducing the safety and reliability of the DC composite pressure tester during the composite or distributed pressure test. Content of the Utility Model

[0004] The purpose of the utility model is to at least solve one of the technical problems existing in the prior art, and provide a DC composite pressure tester and its power distribution system, which can avoid the failure of the remote control device to achieve the pressure on / off function due to contact welding of the relay during the pressure application process, and improve the safety and reliability of the DC composite pressure tester during the composite or distributed pressure test.

[0005] To achieve the above purpose, the first aspect of the embodiment of the utility model provides a DC composite pressure tester, including:

[0006] A first terminal block, and the first terminal block is a multi-input and multi-output terminal block;

[0007] A control device, which is used to receive an external pressure signal and output a high-voltage current to the first terminal block. The control device is connected to the first terminal block, and the control device includes a first fuse, a second fuse, and a first mode switching knob switch;

[0008] A remote control device, which is used to send a control signal for turning on or off the pressure signal to the control device. The remote control device includes a first relay, a second relay, and a remote control processing module;

[0009] Wherein, the first mode switching knob switch is used to switch the emergency stop mode of the control device. The first mode switching knob switch includes a first mode switching normally closed input terminal, a first mode switching normally open input terminal, a first mode switching normally open common output terminal, and a first mode switching normally closed common output terminal;

[0010] The normally-closed input terminal of the first mode switch is connected to the output terminal of the first fuse, the normally-open input terminal of the first mode switch is connected to the output terminal of the second fuse, the normally-open common output terminal of the first mode switch is connected to the normally-open input terminal of the first relay, the normally-open common output terminal of the first mode switch is connected to the normally-open input terminal of the second relay, the coil input terminal of the first relay is connected to the first normally-open output terminal of the remote control processing module, and the coil input terminal of the second relay is connected to the second normally-open output terminal of the remote control processing module.

[0011] Furthermore, in some embodiments, the first terminal block includes:

[0012] Zero-voltage input point;

[0013] Zero-voltage output point, the voltage of the zero-voltage output point corresponds to the voltage of the zero-voltage input point, and the zero-voltage output point is grounded or connected to zero.

[0014] Multiple first power-taking input points, each of the first power-taking input points is respectively connected to the normally-closed output terminal of the first relay, the normally-closed output terminal of the second relay, the common output terminal of the first relay, the common output terminal of the second relay, the normally-open input terminal of the first fuse, and the normally-open input terminal of the second fuse;

[0015] Multiple first power-taking output points, the voltage of each of the first power-taking output points corresponds to the voltage of each of the first power-taking input points.

[0016] Furthermore, in some embodiments, the DC composite voltage boosting tester further includes:

[0017] A second terminal block, the second terminal block is a one-in-multiple-out terminal block, the second terminal block includes a second power-taking input point and multiple second power-taking output points, the voltage of each of the second power-taking output points corresponds to the voltage of the second power-taking input point, and the second power-taking input point is connected to the corresponding first power-taking output point;

[0018] A third terminal block, the third terminal block is a one-in-multiple-out terminal block, the third terminal block includes a third power-taking input point and multiple third power-taking output points, the voltage of each of the third power-taking output points corresponds to the voltage of the third power-taking input point, and the third power-taking input point is connected to the corresponding first power-taking output point;

[0019] Wherein, both the second terminal block and the third terminal block are used as the DC test interface output platforms for the single voltage boosting mode, the multi-voltage boosting mode, or the composite voltage boosting mode, and both the second power-taking output points and the third power-taking output points are used as the single voltage boosting output ports or the multi-voltage boosting output ports of the DC composite voltage boosting tester.

[0020] Further, in some embodiments, the control device further includes:

[0021] A first indicator light, which is used to display the power-on and power-off states of the first relay;

[0022] A second indicator light, which is used to display the power-on and power-off states of the second relay;

[0023] A second mode switching knob switch, which is used to switch the indicator light mode of the control device. The second mode switching knob switch includes a second mode switching normally closed input terminal, a second mode switching normally open input terminal, a second mode switching normally open common output terminal, and a second mode switching normally closed common output terminal;

[0024] Wherein, the second mode switching normally closed input terminal is connected to the output terminal of the first indicator light, the second mode switching normally open input terminal is connected to the output terminal of the second indicator light, the second mode switching normally open common output terminal and the second mode switching normally closed common output terminal are connected in parallel with each other, and both the second mode switching normally open common output terminal and the second mode switching normally closed common output terminal are connected to the zero voltage input point.

[0025] Further, in some embodiments, the first mode switching knob switch or the second mode switching knob switch is a two-gear self-locking six-pin metal knob switch, and the diameter of the first mode switching knob switch or the second mode switching knob switch is 15 mm.

[0026] Further, in some embodiments, the DC composite voltage boosting tester further includes:

[0027] A DC power socket, which is used as a connection interface for an external power supply. The positive output terminal of the DC power socket is connected to the positive input terminal of the remote control processing module, and the negative output terminal of the DC power socket is connected to the negative input terminal of the remote control processing module;

[0028] Wherein, the DC power socket is a 5.5 mm * 2.5 mm round hole threaded nut socket.

[0029] Further, in some embodiments, the DC composite voltage boosting tester further includes:

[0030] A boosting wire, which is used to transmit electric energy and serves as a connecting wire for the first terminal block, the second terminal block, the third terminal block, the control device, and the remote control device. One end of the boosting wire is a HanE male pin, and the other end of the boosting wire is a pre-insulated tubular terminal or a high-voltage-resistant banana plug;

[0031] Wherein, the cross-sectional size range of the HanE male pin is 1.0 mm 2 to 4 mm 2 , and the cross-sectional size range of the pre-insulated tubular terminal is 1.0 mm2 to 4 mm 2 , the diameter of the lantern metal terminal of the high-voltage-resistant banana plug is 4 mm.

[0032] Further, in some embodiments, the DC composite pressure tester further includes a handle, and the handle is disposed on the side of the DC composite pressure tester.

[0033] A second aspect of the embodiments of the present invention provides a DC remote control pressurized power distribution system, including:

[0034] The DC composite pressure tester as described in the first aspect above;

[0035] A plurality of first power distribution modules, each first power distribution module includes a pressurizing component, and the input end of the pressurizing component is connected to the first power-taking output point of the DC composite pressure tester;

[0036] A plurality of second power distribution modules, each second power distribution module includes a feedback component, and the input end of the feedback component is connected to the second power-taking output point or the third power-taking output point of the DC composite pressure tester;

[0037] A DC low-voltage power supply, and the output end of the DC low-voltage power supply is connected to the DC power socket of the DC composite pressure tester.

[0038] The DC composite pressure tester and its power distribution system according to the embodiments of the present utility model have at least the following beneficial effects: By providing a first terminal block, a control device, and a remote control device, the first terminal block is a multi-in and multi-out terminal block; the control device is used to receive an external pressure signal and output a high-voltage current to the first terminal block, the control device is connected to the first terminal block, and the control device includes a first fuse, a second fuse, and a first mode switching knob switch. The remote control device is used to send a control signal for turning on or off the pressure signal to the control device, and the remote control device includes a first relay, a second relay, and a remote control processing module; wherein, the first mode switching knob switch is used to switch the control device to the emergency stop mode. The first mode switching knob switch includes a first mode switching normally closed input terminal, a first mode switching normally open input terminal, a first mode switching normally open common output terminal, and a first mode switching normally closed common output terminal; the first mode switching normally closed input terminal is connected to the output terminal of the first fuse, the first mode switching normally open input terminal is connected to the output terminal of the second fuse, the first mode switching normally open common output terminal is connected to the normally open input terminal of the first relay, the first mode switching normally open common output terminal is connected to the normally open input terminal of the second relay, the coil input terminal of the first relay is connected to the first normally open output terminal of the remote control processing module; the coil input terminal of the second relay is connected to the second normally open output terminal of the remote control processing module, thereby avoiding the situation that the remote control device cannot achieve the pressure on / off function due to the contact welding of the relay during the pressure application process, and improving the safety and reliability of the DC composite pressure tester during the composite or distributed pressure test.

[0039] Other features and advantages of the present utility model will be described in the following description, and in part, will become apparent from the description. The objectives and other advantages of the present utility model can be achieved and obtained through the structures specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings are used to provide a further understanding of the technical solutions of the present utility model, and constitute a part of the description. Together with the embodiments of the present utility model, they are used to explain the technical solutions of the present utility model, and do not constitute a limitation to the technical solutions of the present utility model.

[0041] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0042] Figure 1 is an isometric view of the DC composite pressure tester provided by the embodiment of the present utility model;

[0043] Figure 2 is a top view of the DC composite pressure tester provided by the embodiment of the present utility model;

[0044] Figure 3It is an exploded view of the DC composite pressure tester provided by the embodiment of the present utility model;

[0045] Figure 4 It is a circuit diagram of the DC remote control pressure distribution system provided by the embodiment of the present utility model.

[0046] Reference numerals:

[0047] DC composite pressure tester 1000, first terminal block 1100, zero voltage input point 1110, zero voltage output point 1120, first power supply taking input point 1130, first power supply taking output point 1140, control device 1200, first fuse 1210, second fuse 1220, first mode switching knob switch 1230, first mode switching normally closed input terminal 1231, first mode switching normally open input terminal 1232, first mode switching normally open common output terminal 1233, first mode switching normally closed common output terminal 1234, remote control device 1300, first relay 1310, second relay 1320, remote control processing module 1330, second terminal block 1400, third terminal block 1500, DC power socket 1600, pressure line 1700, handle 1800.

[0048] First power distribution module 2100, pressure component 2110, second power distribution module 2200, feedback component 2120, DC low voltage power supply 2300. Detailed implementation manners

[0049] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0050] In the description of the present utility model, if the first and second are described for the purpose of distinguishing technical features, they cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0051] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0052] With the rapid development of rail transit, the intelligent guiding safety of subway vehicles has attracted increasing attention, especially how to use more scientific and safe test methods to verify the pressure tests of the electrical cabinets of subway vehicles and the connectors or terminal blocks of the equipment under the vehicle.

[0053] In the existing technology, the manual pressure application method is still one of the commonly used debugging methods at present. However, this method is often time-consuming and prone to the risk of electric shock to the debugging personnel. Especially during the multi-pressure functional test, due to the possible virtual connection and the state of conduction transformation back and forth between the pressure application wire pins and the power-taking points, the reliability of the test verification results is reduced. At the same time, although the ready-made pressure application function test device can apply pressure to the pressure application points of different equipment of multiple vehicles, the overall weight of the device is not suitable for decentralized pressure application tests, and the number of pressure application wires required is relatively large, and the wire length will also increase a lot. As a result, it is inconvenient to debug subway vehicles and poses potential safety hazards for personnel operation during the actual operation in the later stage.

[0054] Based on this, the embodiment of the present utility model provides a DC composite pressure application tester and its power distribution system. By providing a first terminal block, a control device, and a remote control device, the first terminal block is a multi-input multi-output terminal block; the control device is used to receive an external pressure application signal and output a high-voltage current to the first terminal block. The control device is connected to the first terminal block. The control device includes a first fuse, a second fuse, and a first mode switching knob switch. The remote control device is used to send a control signal for turning on or off the pressure application signal to the control device. The remote control device includes a first relay, a second relay, and a remote control processing module; wherein, the first mode switching knob switch is used to switch the emergency stop mode of the control device. The first mode switching knob switch includes a first mode switching normally closed input terminal, a first mode switching normally open input terminal, a first mode switching normally open common output terminal, and a first mode switching normally closed common output terminal; the first mode switching normally closed input terminal is connected to the output terminal of the first fuse, the first mode switching normally open input terminal is connected to the output terminal of the second fuse, the first mode switching normally open common output terminal is connected to the normally open input terminal of the first relay, the first mode switching normally open common output terminal is connected to the normally open input terminal of the second relay, the coil input terminal of the first relay is connected to the first normally open output terminal of the remote control processing module; the coil input terminal of the second relay is connected to the second normally open output terminal of the remote control processing module, thereby avoiding the inability to realize the pressure application on-off function due to the contact welding of the relay during the pressure application process of the remote control device, and improving the safety and reliability of the DC composite pressure application tester during the composite or decentralized pressure application test.

[0055] The DC composite pressure application tester provided by the embodiment of the present utility model is specifically described through the following embodiments.

[0056] Refer toFigure 1 , Figure 2 , Figure 3 and Figure 4 as shown, Figure 1 is an isometric view of a DC composite pressure tester provided by an embodiment of the present utility model, Figure 2 is a top view of a DC composite pressure tester provided by an embodiment of the present utility model, Figure 3 is an exploded view of a DC composite pressure tester provided by an embodiment of the present utility model, Figure 4 is a circuit diagram of a DC remote control pressure distribution system provided by an embodiment of the present utility model. The DC composite pressure tester 1000 includes a first terminal block 1100, a control device 1200, and a remote control device 1300. The first terminal block 1100 is a multi-input multi-output terminal block; the control device 1200 is configured to receive an external pressure signal and output a high-voltage current to the first terminal block 1100. The control device 1200 is connected to the first terminal block 1100. The control device 1200 includes a first fuse 1210, a second fuse 1220, and a first mode switching knob switch 1230. The remote control device 1300 is configured to send a control signal for turning on or off the pressure signal to the control device 1200. The remote control device 1300 includes a first relay 1310, a second relay 1320, and a remote control processing module 1330.

[0057] Among them, the first mode switching knob switch 1230 is used to switch the control device 1200 to the emergency stop mode. The first mode switching knob switch 1230 includes a first mode switching normally closed input terminal 1231, a first mode switching normally open input terminal 1232, a first mode switching normally open common output terminal 1233, and a first mode switching normally closed common output terminal 1234; the first mode switching normally closed input terminal 1231 is connected to the output terminal of the first fuse 1210, the first mode switching normally open input terminal 1232 is connected to the output terminal of the second fuse 1220, the first mode switching normally open common output terminal 1233 is connected to the normally open input terminal of the first relay 1310, the first mode switching normally open common output terminal 1233 is connected to the normally open input terminal of the second relay 1320, the coil input terminal of the first relay 1310 is connected to the first normally open output terminal of the remote control processing module 1330; the coil input terminal of the second relay 1320 is connected to the second normally open output terminal of the remote control processing module 1330.

[0058] Further, as can be seen from Figure 4 the first terminal block 1100 includes a zero voltage input point 1110 and a zero voltage output point 1120. The voltage of the zero voltage output point 1120 corresponds to the voltage of the zero voltage input point 1110. The zero voltage output point 1120 is grounded or connected to zero.

[0059] Further, as can be seen from Figure 4It can be known that the first terminal block 1100 further includes a plurality of first power-taking input points 1130 and a plurality of first power-taking output points 1140. Each of the first power-taking input points 1130 is respectively connected to the normally-closed output terminal of the first relay 1310, the normally-closed output terminal of the second relay 1320, the common output terminal of the first relay 1310, the common output terminal of the second relay 1320, the normally-open input terminal of the first fuse 1210, and the normally-open input terminal of the second fuse 1220; the voltages of each of the first power-taking output points 1140 respectively correspond to the voltages of each of the first power-taking input points 1130.

[0060] Furthermore, the DC composite voltage application tester 1000 further includes a second terminal block 1400. The second terminal block 1400 is a one-into-many terminal block. The second terminal block 1400 includes a second power-taking input point (not labeled) and a plurality of second power-taking output points (not labeled). The voltage of each of the second power-taking output points corresponds to the voltage of the second power-taking input point. The second power-taking input point is connected to the corresponding first power-taking output point 1140;

[0061] Furthermore, the DC composite voltage application tester 1000 further includes a third terminal block 1500. The third terminal block 1500 is a one-into-many terminal block. The third terminal block 1500 includes a third power-taking input point (not labeled) and a plurality of third power-taking output points (not labeled). The voltage of each of the third power-taking output points corresponds to the voltage of the third power-taking input point. The third power-taking input point is connected to the corresponding first power-taking output point 1140.

[0062] It should be noted that both the second terminal block 1400 and the third terminal block 1500 are used as the DC test interface output platforms for the single voltage application mode, the multi-voltage application mode, or the composite voltage application mode. The second power-taking output points and the third power-taking output points are both used as the single voltage application output ports or the multi-voltage application output ports of the DC composite voltage application tester 1000.

[0063] Furthermore, from Figure 3 and Figure 4 it can be known that the control device 1200 further includes a first indicator light 1240, a second indicator light 1250, and a second mode switching knob switch 1260. The first indicator light 1240 is used to display the power-on and power-off states of the first relay 1310; the second indicator light 1250 is used to display the power-on and power-off states of the second relay 1320; the second mode switching knob switch 1260 is used to perform indicator light mode switching on the control device 1200. The second mode switching knob switch 1260 includes a second mode switching normally-closed input terminal 1261, a second mode switching normally-open input terminal 1262, a second mode switching normally-open common output terminal 1263, and a second mode switching normally-closed common output terminal 1264.

[0064] Among them, the second mode switching normally closed input terminal 1261 is connected to the output terminal of the first indicator light 1240, the second mode switching normally open input terminal 1262 is connected to the output terminal of the second indicator light 1250, the second mode switching normally open common output terminal 1263 and the second mode switching normally closed common output terminal 1264 are connected in parallel with each other, and both the second mode switching normally open common output terminal 1263 and the second mode switching normally closed common output terminal 1264 are connected to the zero voltage input point 1110.

[0065] It should be noted that the first mode switching knob switch 1230 or the second mode switching knob switch 1260 is a two - gear self - locking six - pin metal knob switch, and the diameter of the first mode switching knob switch 1230 or the second mode switching knob switch 1260 is 15 mm.

[0066] Furthermore, from Figure 3 and Figure 4 it can be known that the DC composite voltage - applying tester 1000 further includes a DC power socket 1600. The DC power socket 1600 is used as the connection interface for an external power supply. The positive output terminal of the DC power socket 1600 is connected to the positive input terminal of the remote control processing module 1330, and the negative output terminal of the DC power socket 1600 is connected to the negative input terminal of the remote control processing module 1330.

[0067] Among them, the DC power socket 1600 is a 5.5 mm * 2.5 mm round - hole threaded nut socket.

[0068] Furthermore, from Figure 3 and Figure 4 it can be known that the DC composite voltage - applying tester 1000 further includes a pressure - applying wire 1700. The pressure - applying wire 1700 is used to transmit electric energy and serves as the connecting wire for the first terminal block 1100, the second terminal block 1400, the third terminal block 1500, the control device 1200, and the remote control device 1300. One end of the pressure - applying wire 1700 is a HanE male pin, and the other end of the pressure - applying wire 1700 is a pre - insulated tubular terminal or a high - voltage - resistant banana plug.

[0069] Among them, the cross - sectional size range of the HanE male pin is 1.0 mm 2 to 4 mm 2 , the cross - sectional size range of the pre - insulated tubular terminal is 1.0 mm 2 to 4 mm 2 , and the diameter of the lantern - shaped metal terminal of the high - voltage - resistant banana plug is 4 mm.

[0070] Furthermore, from Figure 1 it can be known that the DC composite voltage - applying tester 1000 further includes a handle 1800, and the handle 1800 is arranged on the side of the DC composite voltage - applying tester 1000.

[0071] In the second aspect of the embodiments of the present utility model, a DC remote control pressurized power distribution system is proposed. Starting from Figure 4 it can be seen that the DC remote control pressurized power distribution system includes a DC composite pressurizing tester 1000 as described in the first aspect above, a plurality of first power distribution modules 2100, a plurality of second power distribution modules 2200, and a DC low-voltage power supply 2300; the first power distribution module 2100 includes a pressurizing component 2110, and the input end of the pressurizing component 2110 is connected to the first power-taking output point 1140 of the DC composite pressurizing tester 1000. The second power distribution module 2200 includes a feedback component 2120, and the input end of the feedback component 2120 is connected to the second power-taking output point or the third power-taking output point of the DC composite pressurizing tester 1000. The output end of the DC low-voltage power supply 2300 is connected to the DC power socket 1600 of the DC composite pressurizing tester 1000.

[0072] Furthermore, the normal working principle of the DC composite pressurizing tester 1000 is described as follows:

[0073] A digital display adjustable DC 480W switching power supply is selected as the pressurizing component 2110 of the second power distribution module 2200, and a digital multimeter is used as the feedback component 2120 of the first power distribution module 2100. During the circuit connection process, a positive terminal of the digital display adjustable DC 480W switching power supply is connected to the first fuse 1210 through the first terminal block 1100. The positive measurement terminal of the digital multimeter is connected to the common output terminal of the first relay 1310 through the second terminal block 1400. The COM terminal of the digital multimeter is connected to a negative terminal of the digital display adjustable DC 480W switching power supply.

[0074] The verification process of the conduction of the circuit corresponding to the first relay 1310 is as follows: Turn the range knob of the digital multimeter to the DC voltage 200V range. Turn on the digital display adjustable DC 480W switching power supply. When the DC voltage adjustment knob is slowly adjusted from DC0V to DC110V, the digital multimeter shows DC110V and remains stable for about 30 minutes. Then, manually control the remote control device 1300 to conduct the circuit on the first relay 1310 10 times, that is, control the normally open contact of the first relay 1310 to break and close back and forth, and the DC110V value of the digital multimeter shows stable during break and close. When the DC voltage adjustment knob is adjusted from DC110V to DC123V, the digital multimeter shows DC110V and remains stable for about 30 minutes.

[0075] Similarly, the verification process for the conduction of the circuit corresponding to the second relay 1320 is as follows. Another positive terminal of the digital display adjustable DC 480W switching power supply is connected to the second fuse 1220 through the first terminal block 1100. The positive measurement terminal of the digital multimeter is connected to the common output terminal of the second relay 1320 through the third terminal block 1500. The COM terminal of the digital multimeter is connected to another negative terminal of the digital display adjustable DC 480W switching power supply. Then, the above verification is carried out for the second relay 1320 in the same way. The verification result is the same as that of the above verification of the first relay 1310. The range of DC high voltage values that both the first relay 1310 and the second relay 1320 of the control device 1200 can withstand is DC0V - DC123V.

[0076] Furthermore, in the verification embodiment of the emergency stop mode switching function of the DC composite pressure tester 1000, a digital display adjustable DC 480W switching power supply is selected as the pressure application component 2110 of the two second power distribution modules 2200, a digital multimeter is used as the feedback component 2120 of the first power distribution module 2100, and a DC110V laser tube light is used as the feedback component 2120 of another first power distribution module 2100. During the circuit connection process, one positive terminal of the digital display adjustable DC 480W switching power supply is connected to the first fuse 1210 through the first terminal block 1100, and another positive terminal of the digital display adjustable DC 480W switching power supply is connected to the second fuse 1220 through the first terminal block 1100. The positive measurement terminal of the digital multimeter is connected to the common output terminal of the first relay 1310 through the second terminal block 1400, and the positive terminal of the DC110V laser tube light is connected to the common output terminal of the second relay 1320 through the third terminal block 1500. The COM terminal of the digital multimeter is connected to one negative terminal of the digital display adjustable DC 480W switching power supply, and the negative terminal of the DC110V laser tube light is connected to another negative terminal of the digital display adjustable DC 480W switching power supply.

[0077] The verification process for the emergency stop mode switching of the corresponding circuit of the first relay 1310 is as follows. Turn the range knob of the digital multimeter to the 200V DC voltage range, turn on the digital display adjustable DC 480W switching power supply, and slowly adjust the DC voltage adjustment knob from DC0V to DC110V. Then, turn the first mode switching knob switch 1230 to the emergency stop position of the corresponding circuit of the first relay 1310, so that the first mode switching normally closed input terminal 1231 and the first mode switching normally closed common output terminal 1234 inside the first mode switching knob switch 1230 are conducted, and the first mode switching normally open input terminal 1232 and the first mode switching normally closed common output terminal 1234 are not conducted; then manually control the remote control device 1300 so that the normally open input terminal of the first relay 1310 is not closed, and the digital multimeter does not display the DC110V value; then, manually control the remote control device 1300 so that the normally open input terminal of the second relay 1320 is closed, and the DC110V laser tube light is powered on and becomes bright.

[0078] Similarly, the verification process for the emergency stop mode switching of the corresponding circuit of the second relay 1320 is as follows. Turn the range knob of the digital multimeter to the 200V DC voltage range, turn on the digital display adjustable DC 480W switching power supply, and slowly adjust the DC voltage adjustment knob from DC0V to DC110V. Then, turn the first mode switching knob switch 1230 to the emergency stop position of the corresponding circuit of the second relay 1320, so that the first mode switching normally open input terminal 1232 and the first mode switching normally closed common output terminal 1234 inside the first mode switching knob switch 1230, and the first mode switching normally closed input terminal 1231 and the first mode switching normally closed common output terminal 1234 are not conducted. Manually operate the B-channel button, and the normally open contact of the B-channel relay is not closed, and the DC110V laser tube light is not on; then manually control the remote control device 1300 so that the normally open input terminal of the first relay 1310 is closed, and the digital multimeter displays the DC110V value.

[0079] According to the above verification results, it can be seen that the first mode switching knob switch 1230 can timely and reliably cut off the high-voltage DC current of the corresponding circuit of the first relay 1310 or the second relay 1320.

[0080] Further, in the verification embodiment of the indicator light mode switching function of the DC composite pressure tester 1000, a digital display adjustable DC 480W switching power supply is selected as the pressurizing component 2110 of the two second power distribution modules 2200, a digital multimeter is used as the feedback component 2120 of the first power distribution module 2100, and a DC 110V laser tube light is used as the feedback component 2120 of another first power distribution module 2100. During the circuit connection process, one positive terminal of the digital display adjustable DC 480W switching power supply is connected to the first fuse 1210 through the first terminal block 1100, and the other positive terminal of the digital display adjustable DC 480W switching power supply is connected to the second fuse 1220 through the first terminal block 1100. The positive measurement terminal of the digital multimeter is connected to the common output terminal of the first relay 1310 through the second terminal block 1400, and the positive terminal of the DC 110V laser tube light is connected to the common output terminal of the second relay 1320 through the third terminal block 1500. The COM terminal of the digital multimeter is connected to one negative pole of the digital display adjustable DC 480W switching power supply, and the negative terminal of the DC 110V laser tube light is connected to the other negative pole of the digital display adjustable DC 480W switching power supply. The zero voltage output point 1120 corresponding to the first terminal block 1100 is connected to the zero line terminal or the grounding terminal of the digital display adjustable DC 480W switching power supply through a wire.

[0081] The verification process of the indicator light mode switching of the circuit corresponding to the first relay 1310 is as follows. Turn the range gear knob of the digital multimeter to the DC voltage 200V gear, turn on the digital display adjustable DC 480W switching power supply, and slowly adjust the DC voltage adjustment knob from DC0V to DC110V. Then, turn the second mode switching knob switch 1260 to the indication position of the circuit corresponding to the first relay 1310, so that the second mode switching normally closed input terminal 1261 and the second mode switching normally closed common output terminal 1264 inside the second mode switching knob switch 1260 are conducted, and the second mode switching normally open input terminal 1262 and the second mode switching normally closed common output terminal 1264 are not conducted. Then, turn the second mode switching knob switch 1260 to the indication position of the circuit corresponding to the second relay 1320, so that the second mode switching normally open input terminal 1262 and the second mode switching normally closed common output terminal 1264 inside the second mode switching knob switch 1260 are conducted. Finally, manually control the remote control device 1300 so that the normally open input terminal of the first relay 1310 is not closed, no current flows through the first indicator light 1240 and it does not emit light, and the digital multimeter does not display the DC110V value; manually control the remote control device 1300 so that the normally open input terminal of the second relay 1320 is closed, current flows through the first indicator light 1240 and it emits light, and the DC 110V laser tube light is powered on and becomes bright.

[0082] Similarly, turn the range knob of the digital multimeter to the 200V DC voltage range, turn on the digital display adjustable DC 480W switching power supply. When the DC voltage adjustment knob is slowly adjusted from DC0V to DC110V, then turn the second mode switching knob switch 1260 to the indication position corresponding to the second relay 1320, so that the second mode switching normally closed input terminal 1261 and the second mode switching normally closed common output terminal 1264 inside the second mode switching knob switch 1260 are not conducting, and the second mode switching normally open input terminal 1262 and the second mode switching normally closed common output terminal 1264 are conducting. Then, turn the second mode switching knob switch 1260 to the indication position corresponding to the first relay 1310, so that the second mode switching normally closed input terminal 1261 and the second mode switching normally closed common output terminal 1264 inside the second mode switching knob switch 1260 are conducting. Finally, manually control the remote control device 1300 to close the normally open input terminal of the first relay 1310. There is current flowing through and the first indicator light 1240 emits light. The digital multimeter shows the value of DC110V. Manually control the remote control device 1300 so that the normally open input terminal of the second relay 1320 is not closed. There is no current flowing through and the second indicator light 1250 does not emit light. The DC110V laser tube light is not on.

[0083] It can be seen from the verification results that when the second mode switching knob switch 1260 forms a loop with the grounding terminal or the neutral terminal of the power distribution cabinet in the control device 1200, it can accurately reflect the on / off situation of the pressurization operation of one system circuit or two system circuits, which facilitates the verification of the pressurization test by a single operator.

[0084] Furthermore, in the verification embodiment of the relay setting and interlock function of the control device 1200, a digital display adjustable DC 480W switching power supply is selected as the pressurization component 2110 of the two second power distribution modules 2200, a digital multimeter is used as the feedback component 2120 of the first power distribution module 2100, and a DC110V laser tube light is used as the feedback component 2120 of another first power distribution module 2100. During the circuit connection process, a positive terminal of the digital display adjustable DC 480W switching power supply is connected to the first fuse 1210 through the first terminal block 1100, and another positive terminal of the digital display adjustable DC 480W switching power supply is connected to the second fuse 1220 through the first terminal block 1100. The positive measurement terminal of the digital multimeter is connected to the common output terminal of the first relay 1310 through the second terminal block 1400, and the positive terminal of the DC110V laser tube light is connected to the common output terminal of the second relay 1320 through the third terminal block 1500. The COM terminal of the digital multimeter is connected to a negative pole of the digital display adjustable DC 480W switching power supply, and the negative terminal of the DC110V laser tube light is connected to another negative pole of the digital display adjustable DC 480W switching power supply.

[0085] Turn the range knob of the digital multimeter to the 200V DC voltage range, and turn on the digital display adjustable DC 480W switching power supply. When the DC voltage adjustment knob is slowly adjusted from DC0V to DC110V, then turn the first mode switching knob switch 1230 to the emergency stop position corresponding to the first relay 1310, so that the first mode switching normally closed input terminal 1231 and the first mode switching normally closed common output terminal 1234 inside the first mode switching knob switch 1230 are conducted, and the first mode switching normally open input terminal 1232 and the first mode switching normally closed common output terminal 1234 are not conducted. Then manually control the remote control device 1300 so that the normally open input terminal of the first relay 1310 is not closed, and the digital multimeter does not display the DC110V value; then, manually control the remote control device 1300 so that the normally open input terminal of the second relay 1320 is closed, and the DC110V laser tube light is powered on and brightens. Further, turn the first mode switching knob switch 1230 to the emergency stop position corresponding to the second relay 1320, so that the first mode switching normally open input terminal 1232 and the first mode switching normally closed common output terminal 1234, the first mode switching normally closed input terminal 1231 and the first mode switching normally closed common output terminal 1234 inside the first mode switching knob switch 1230 are not conducted, manually operate the B-channel button by hand, the normally open contact of the B-channel relay is not closed, and the DC110V laser tube light is not on; then manually control the remote control device 1300 so that the normally open input terminal of the first relay 1310 is closed, and the digital multimeter displays the DC110V value.

[0086] It can be seen from the verification results that when the pressurization function of any one relay corresponding circuit of the manual remote control device 1200 is effective, the pressurization function of the other relay corresponding circuit fails, effectively avoiding the situation of system function disorder when two pressurization function tests need to be carried out in the same power distribution module in the same system, enabling the two pressurization function tests to proceed in an orderly manner without interference.

[0087] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A DC composite pressure tester, characterized in that , including: The first terminal block, and the first terminal block is a multi-input multi-output terminal block; A control device for receiving an external pressurizing signal and outputting a high-voltage current to the first terminal block. The control device is connected to the first terminal block and includes a first fuse, a second fuse, and a first mode switching knob switch; A remote control device for sending a control signal for turning on or off the pressurizing signal to the control device. The remote control device includes a first relay, a second relay, and a remote control processing module; Wherein, the first mode switching knob switch is used for performing an emergency stop mode switching on the control device. The first mode switching knob switch includes a first mode switching normally closed input terminal, a first mode switching normally open input terminal, a first mode switching normally open common output terminal, and a first mode switching normally closed common output terminal; The first mode switching normally closed input terminal is connected to the output terminal of the first fuse. The first mode switching normally open input terminal is connected to the output terminal of the second fuse. The first mode switching normally open common output terminal is connected to the normally open input terminal of the first relay and the normally open input terminal of the second relay. The coil input terminal of the first relay is connected to the first normally open output terminal of the remote control processing module. The coil input terminal of the second relay is connected to the second normally open output terminal of the remote control processing module.

2. The DC composite pressure tester according to claim 1, wherein The first terminal block includes: Zero-voltage input point; Zero-voltage output point, and the voltage of the zero-voltage output point corresponds to the voltage of the zero-voltage input point. The zero-voltage output point is grounded or connected to zero; A plurality of first power-taking input points, and each of the first power-taking input points is respectively connected to the normally closed output terminal of the first relay, the normally closed output terminal of the second relay, the common output terminal of the first relay, the common output terminal of the second relay, the normally open input terminal of the first fuse, and the normally open input terminal of the second fuse; A plurality of first power-taking output points, and the voltage of each of the first power-taking output points corresponds to the voltage of each of the first power-taking input points.

3. The DC composite pressure tester according to claim 2, characterized in that, The DC composite pressurizing tester further includes: A second terminal block, and the second terminal block is a single-input multi-output terminal block. The second terminal block includes a second power-taking input point and a plurality of second power-taking output points. The voltage of each of the second power-taking output points corresponds to the voltage of the second power-taking input point. The second power-taking input point is connected to the corresponding first power-taking output point; A third terminal block, and the third terminal block is a single-input multi-output terminal block. The third terminal block includes a third power-taking input point and a plurality of third power-taking output points. The voltage of each of the third power-taking output points corresponds to the voltage of the third power-taking input point. The third power-taking input point is connected to the corresponding first power-taking output point; Among them, both the second terminal block and the third terminal block are used as the DC test interface output platforms for single-pressure mode, multi-pressure mode, or composite pressure mode, and both the second power-taking output point and the third power-taking output point are used as the single-pressure output port or multi-pressure output port of the DC composite pressure tester.

4. The DC composite pressure tester according to claim 2, wherein The control device further includes: A first indicator light, which is used to display the power-on and power-off states of the first relay; A second indicator light, which is used to display the power-on and power-off states of the second relay; A second mode switching knob switch, which is used to switch the indicator light mode of the control device. The second mode switching knob switch includes a second mode switching normally closed input terminal, a second mode switching normally open input terminal, a second mode switching normally open common output terminal, and a second mode switching normally closed common output terminal; Among them, the second mode switching normally closed input terminal is connected to the output terminal of the first indicator light, the second mode switching normally open input terminal is connected to the output terminal of the second indicator light, the second mode switching normally open common output terminal and the second mode switching normally closed common output terminal are connected in parallel with each other, and both the second mode switching normally open common output terminal and the second mode switching normally closed common output terminal are connected to the zero voltage input point.

5. The DC composite pressure tester according to claim 4, characterized in that, The first mode switching knob switch or the second mode switching knob switch is a two-gear self-locking six-pin metal knob switch, and the diameter of the first mode switching knob switch or the second mode switching knob switch is 15 mm.

6. The DC composite pressure tester according to claim 1, wherein, The DC composite pressure tester further includes: A DC power socket, which is used as the connection interface for an external power supply. The positive output terminal of the DC power socket is connected to the positive input terminal of the remote control processing module, and the negative output terminal of the DC power socket is connected to the negative input terminal of the remote control processing module; Among them, the DC power socket is a 5.5 mm * 2.5 mm round hole threaded nut socket.

7. The DC composite pressure tester according to claim 3, wherein The DC composite pressure tester further includes: A pressure line, which is used to transmit electric energy and serve as the connection line for the first terminal block, the second terminal block, the third terminal block, the control device, and the remote control device. One end of the pressure line is a HanE male pin, and the other end of the pressure line is a pre-insulated tubular terminal or a high-voltage-resistant banana plug; Among them, the cross-sectional size range of the HanE male needle is 1.0 mm 2 to 4 mm 2 , the cross-sectional size range of the pre-insulated tubular terminal is 1.0 mm 2 to 4 mm 2 , and the diameter of the lantern metal terminal of the high-voltage-resistant banana plug is 4 mm.

8. The DC composite pressure tester according to claim 1, characterized in that, The DC composite pressure tester further includes a handle, which is provided on the side of the DC composite pressure tester.

9. A DC remote control pressurized power distribution system, characterized in that , including: The DC composite pressure tester according to any one of claims 1 to 8; A plurality of first power distribution modules, each of the first power distribution modules includes a pressure component, and the input terminal of the pressure component is connected to the first power-taking output point of the DC composite pressure tester; A plurality of second power distribution modules, each of the second power distribution modules includes a feedback component, and the input terminal of the feedback component is connected to the second power-taking output point or the third power-taking output point of the DC composite pressure tester; A DC low-voltage power supply, and an output end of the DC low-voltage power supply is connected to the DC power socket of the DC composite pressure tester.

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