Cabinet door type T1 test device

Abstract

The utility model relates to a cabinet door type T1 test device, the device is used for being assembled on a target cabinet, the device comprises a cabinet door, the cabinet door comprises a plurality of hinges used for being detachably hinged with the target cabinet, and the cabinet door can be closed or opened on the target cabinet; a T1 test module, a signal switching module and a man-machine interaction module are arranged on the cabinet door, the signal switching module is electrically connected with the T1 test module, the signal switching module is used for being electrically connected with a target cabinet so as to control test signal transmission between the target cabinet and the T1 test module during a T1 test, and the man-machine interaction module is electrically connected with the T1 test module. And the man-machine interaction module is used for displaying test information. According to the utility model, when a T1 test is carried out each time, a worker does not need to plug and pull out a cable and does not need to move the T1 test module, thereby not only reducing the burden of the worker, but also reducing the risk that the cable is damaged and the risk that the T1 test module collides with SIP room equipment.

Description

Cabinet-type T1 test apparatus Technical Field

[0001] This utility model relates to the field of nuclear power plant equipment technology, and in particular to a cabinet-type T1 test device. Background Technology

[0002] Periodic testing at nuclear power plants includes T1 tests (T1 tests for short). In related technologies, a dedicated, portable T1 test unit is typically moved to the SIP (Process Instrumentation on System) room for testing, with a testing frequency of once every two weeks. Because each test requires the SIP protection cabinet (Process Instrumentation on System) to be plugged and unplugged from the T1 test unit, the risk of damage to interfaces and cables increases, including problems such as poor contact and aging, thus preventing the T1 test from proceeding normally. Furthermore, due to the large number of devices in the SIP room and the limited safety space, each movement of the T1 test unit carries the risk of collision with other equipment. Incidents of equipment damage due to collisions within the SIP room occasionally occur. Collisions can significantly impact the high-precision PCB cards inside the portable T1 test unit. Minor damage may result in components detaching, affecting card performance; serious damage could lead to short circuits within the portable T1 test unit, potentially triggering a major nuclear power plant accident. This not only affects the testing schedule but also adversely impacts the safety of the nuclear power plant. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a cabinet door type T1 test device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a cabinet door type T1 test device for assembly on a target cabinet. The cabinet door type T1 test device includes a cabinet door, and the cabinet door includes multiple hinges for detachably hinged to the target cabinet, so that the cabinet door can be closed or opened on the target cabinet.

[0005] The cabinet door is equipped with a T1 test module, a signal switching module, and a human-machine interaction module. The signal switching module is electrically connected to the T1 test module and is used to control the transmission of test signals between the target cabinet and the T1 test module during the T1 test. The human-machine interaction module is electrically connected to the T1 test module and is used to display test information.

[0006] Preferably, the inner side of the cabinet door has a receiving space opposite to the opening of the target cabinet. The receiving space is used to accommodate the T1 test module and the signal switching module. When the cabinet door is closed on the target cabinet, the T1 test module and the signal switching module will not interfere with the equipment inside the target cabinet.

[0007] Preferably, the cabinet door is provided with a first through hole for assembling the human-machine interaction module, a first fixing bracket for fixing the human-machine interaction module, and a second fixing bracket for fixing the signal switching module and the T1 test module.

[0008] Preferably, the second fixing frame includes a rectangular box that is detachably mechanically connected to the inside of the cabinet door, and the signal switching module and the T1 test module are disposed in the rectangular box.

[0009] Preferably, the rectangular box includes a top surface, a front surface, a first side surface, and a second side surface opposite to the first side surface;

[0010] The signal switching module is installed inside the rectangular box and close to the top surface. The top surface is provided with a second through hole that exposes the wiring port of the signal switching module to the outside. The front surface is provided with a plurality of first heat dissipation holes for heat dissipation of the signal switching module.

[0011] The T1 test module is installed inside the rectangular box and away from the top surface. The first side and / or the second side are provided with second heat dissipation holes for heat dissipation of the T1 test module.

[0012] Preferably, the inner side is provided with a cable fixing groove mechanism for fixing the connecting cables of the T1 test module, the signal switching module and the human-machine interaction module;

[0013] The cabinet door is also equipped with a lock.

[0014] Preferably, the cabinet-type T1 test device further includes a power supply module electrically connected to the T1 test module, the signal switching module, and the human-machine interaction module for drawing power from the distribution box to supply power to each module.

[0015] Preferably, the power supply module includes a voltage conversion unit and a filtering unit. The voltage conversion unit is used to supply power to the T1 test module, the signal switching module and the human-machine interaction module. The filtering unit is used to prevent overcurrent in the voltage conversion unit and to filter the power supply input to the voltage conversion unit.

[0016] The input terminal of the filtering unit is electrically connected to the distribution box, the output terminal of the filtering unit is electrically connected to the voltage conversion unit, and the voltage conversion unit is electrically connected to the T1 test module, the signal switching module, and the human-machine interaction module.

[0017] Preferably, the filtering unit includes a filter AF, a surge protector FU1, a fuse assembly, and a circuit breaker assembly;

[0018] The input terminal of the filter AF is used to electrically connect to the distribution box. The input terminal of the filter AF is also connected to ground via the surge protector FU1. The output terminal of the filter AF is connected to the voltage conversion unit via the fuse assembly and the circuit breaker assembly.

[0019] The power supply module also includes a cable reel and a terminal block assembly located on the cabinet door. The input end of the terminal block assembly is electrically connected to the voltage conversion unit via a cable in the cable reel, and the output end of the terminal block assembly is electrically connected to the T1 test module, the signal switching module, and the human-machine interaction module via a cable.

[0020] The present invention has the following beneficial effects: it provides a cabinet-type T1 test device, so that when conducting T1 tests, the staff does not need to plug or unplug cables or move the T1 test module. This not only reduces the burden on the staff, but also reduces the risk of cable damage and the risk of collision between the T1 test module and the SIP room equipment, thus significantly improving the efficiency of T1 tests and the safety of nuclear power plants. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0022] Figure 1 is a schematic diagram of the cabinet door type T1 test device in one embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of the structure inside the cabinet door in one embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of the structure of the outer surface of the cabinet door in one embodiment of the present invention;

[0025] Figure 4 is a structural schematic diagram of the second fixing member in one embodiment of the present invention;

[0026] Figure 5 is a structural schematic diagram of the back and first side of the second fixing member in one embodiment of the present invention;

[0027] Figure 6 is a structural schematic diagram of the wire-fixing groove mechanism in one embodiment of the present invention;

[0028] Figure 7 is a circuit structure block diagram of a cabinet-type T1 test device in one embodiment of the present invention;

[0029] Figure 8 is a circuit diagram of the power supply module in one embodiment of this utility model;

[0030] Figure 9 is a circuit diagram of each DC power supply, cable reel, and connector assembly in the embodiment of Figure 8.

[0031] Explanation of reference numerals in the attached figures:

[0032] Cabinet door 1; Hinges 11; Accommodation space 12; First through hole 13; First fixing bracket 14; Second fixing bracket 15; Top surface 151; Front 152; First side 153; Second heat dissipation hole 1531; Back 154; Fixing component 155; Cable tray mechanism 16; First cable tray 161; Second cable tray 162; Door lock 17; Target cabinet 2; T1 test module 3; Signal switching module 4; Human-machine interaction module 5; Power supply module 6; Voltage conversion unit 61; Filtering unit 62; Terminal block assembly 7. Detailed Implementation

[0033] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "up," "down," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Figure 1 is a schematic diagram of the cabinet-type T1 test device in one embodiment of this utility model. This cabinet-type T1 test device is used to mount on the target cabinet 2, replacing the original cabinet door of the target cabinet 2. It enables periodic T1 testing of the target cabinet 2, solving the problem of damage to the internal PCB cards of the T1 test device caused by frequent movement and collisions, and improving T1 test efficiency. This plays a positive role in shortening the T1 test period and improving the safety of nuclear power plants. Furthermore, the target cabinet 2 can be an existing SIP protection cabinet in a nuclear power plant.

[0036] Figure 2 is a schematic diagram of the structure inside the cabinet door in one embodiment of the present invention. Referring to Figures 1 and 2, the cabinet door type T1 test device may include a cabinet door 1, which may include a plurality of hinges 11 for detachably hinged to the target cabinet 2, so that the cabinet door 1 can be closed or opened on the target cabinet 2.

[0037] Due to the large number and diverse structures of SIP protection cabinets in nuclear power plants, to ensure a tight seal of cabinet door 1, the outer surface dimensions and shape of cabinet door 1 must be consistent with the original outer surface dimensions and shape of the target cabinet 2's cabinet door. Furthermore, the number, type, and installation position of hinges 11 must correspond one-to-one with the number, type, and installation position of hinges on the original cabinet door of the target cabinet 2. Therefore, specific limitations are not made regarding the outer surface dimensions and shape of cabinet door 1, or the number, type, and installation position of hinges. It should be noted that the outer surface of cabinet door 1 or the original cabinet door of the target cabinet 2 refers to the side facing outwards after the cabinet door is closed (see Figure 3).

[0038] The cabinet door 1 is equipped with a T1 test module 3, a signal switching module 4, and a human-machine interaction module 5.

[0039] Figure 7 is a circuit structure block diagram of the cabinet-type T1 test device in one embodiment of this utility model. Referring to Figure 7, the T1 test module 3 is electrically connected to the signal switching module 4 and the human-machine interaction module 5. The T1 test module 3 may include the control circuit module required for implementing the T1 test in existing portable T1 test devices. Of course, the control circuit module can also be replaced by other measurement, control, and simulation modules, as long as the replacement module can run the computer programs related to the T1 test of existing portable T1 test devices.

[0040] The signal switching module 4 is used to electrically connect to the target cabinet 2 to control the transmission of test signals between the target cabinet 2 and the T1 test module 3 during the T1 test. Specifically, when the T1 test is not required, to avoid interference from the module on the cabinet door 1 with the normal operation of the target cabinet 2, the signal switching module 4 will disconnect the communication connection between the T1 test module 3 and the target cabinet 2. The communication connection between the T1 test module 3 and the target cabinet 2 will only be connected when the T1 test is performed. The T1 test usually requires multiple signal inputs and outputs. Accordingly, the signal switching module 4 may include multiple switches (the switches can be relays or other switching devices). One end of each switch is electrically connected to the T1 test module 3, and the other end of each switch can be electrically connected to the target cabinet 2 via a cable. During the T1 test, all switches are turned on, enabling signal transmission between the T1 test module 3 and the target cabinet 2, thereby implementing the T1 test. When the T1 test is not performed, all switches are turned off to prevent the T1 test module 3 from interfering with the operation of the target cabinet 2. When the switch is a relay, the signal switching module 4 also includes hardware circuitry for controlling the on / off state of each switch. For example, a circuit breaker connected in series between the excitation coil of each relay and the power supply. The circuit breaker controls whether the relay is energized, thereby controlling the on / off state of the switch. Alternatively, a PLC controller can be used instead of a circuit breaker. The advantage of a PLC controller is its ability to communicate with the human-machine interface module 5, allowing operators to customize the control of any relay's on / off state according to their needs, providing greater flexibility. Furthermore, in this embodiment, the PLC controller can utilize existing computer programs to control the on / off state of the relays.

[0041] The human-machine interface module 5 can be electrically connected to the T1 test module 3 via a network cable. The human-machine interface module 5 is used to display test information and obtain test operation commands. Specifically, the human-machine interface module 5 can include an existing touchscreen, or a combination of a display screen, mouse, and keyboard. Test operation commands can include various commands that control the on / off state of any relay, whether the T1 test is performed, and whether the T1 test is paused. Test information includes displaying the test progress, test results, and test records. It should be noted that the implementation of displaying test information and obtaining test operation commands in the human-machine interface module 5 can refer to the computer program in existing portable T1 test devices, and will not be elaborated further here.

[0042] To ensure the proper functioning of the signal switching module 4, in one embodiment, the PLC controller in the signal switching module 4 can also be electrically connected to the human-machine interface module 5 via an RS232 serial port, allowing operators to use the human-machine interface module 5 to automatically detect whether the functions of each relay in the signal switching module 4 are normal, which is equivalent to adding a self-test function to the signal switching module 4.

[0043] In one embodiment, referring to Figure 2, the inner side of the cabinet door 1 forms a receiving space 12 opposite to the opening of the target cabinet 2. The receiving space 12 is used to accommodate the T1 test module 3 and the signal switching module 4. When the cabinet door 1 is closed on the target cabinet 2, the T1 test module 3 and the signal switching module 4 will not interfere with the equipment inside the target cabinet 2. It should be noted that since some target cabinets 2 have some operable parts protruding from the cabinet surface, such as circuit breakers, cable interfaces, switches, buttons, etc., it is necessary to ensure that the cabinet door 1 will not interfere with these parts after it is closed, thereby avoiding damage or misoperation.

[0044] In one embodiment, referring to Figures 2 and 3, the cabinet door 1 is provided with a first through hole 13 located on the outer surface of the cabinet door 1. The first through hole 13 is used to assemble the human-machine interaction module 5 and to allow the display part of the human-machine interaction module 5 to be presented on the outer surface of the cabinet door 1. The inner side of the cabinet door 1 is also provided with a first fixing bracket 14 that is mechanically connected to the cabinet door 1 and used to fix the human-machine interaction module 5. In the embodiment of Figure 2, the first fixing bracket 14 is a U-shaped metal plate. The two sides of the first fixing bracket 14 are fixed to the inner side of the cabinet door 1 by screw connection and are opposite to the first through hole 13. The middle part of the first fixing bracket 14 is mechanically connected to the human-machine interaction module 5 by screw connection, thereby fixing the human-machine interaction module 5.

[0045] In one embodiment, referring to Figure 2, the inner side of the cabinet door 1 is also provided with a second fixing frame 15 that is mechanically connected to the cabinet door 1 and is used to fix the signal switching module 4 and the T1 test module 3.

[0046] Figure 4 is a structural schematic diagram of the second fixing member in one embodiment of the present invention. Further, referring to Figure 4, the second fixing frame 15 includes a rectangular box that is detachably mechanically connected to the inner side of the cabinet door 1, and the signal switching module 4 and the T1 test module are disposed inside the rectangular box.

[0047] Figure 5 is a structural schematic diagram of the back and first side of the second fixing member in one embodiment of the present invention. Referring to Figures 4 and 5, the rectangular box may include a top surface 151, a front surface 152, a first side surface 153, a second side surface (not shown) opposite to the first side surface 153, and a back surface 154 opposite to the front surface 152.

[0048] Both the signal switching module 4 and the T1 test module are installed inside a rectangular enclosure. The signal switching module 4 is positioned near the top surface 151, i.e., at the top of the rectangular enclosure (see Figure 4). The top surface 151 has a second through hole 1511 that exposes the wiring port of the signal switching module 4 to the outside, allowing personnel to connect the wiring port of the signal switching module 4 to the target cabinet 2. It should be noted that after the wiring port of the signal switching module 4 is connected to the target cabinet 2, the connection between the signal switching module 4 and the target cabinet 2 can be maintained indefinitely unless there is a equipment failure or maintenance requirement. The front surface 152 has several honeycomb-shaped first heat dissipation holes 1521 for heat dissipation of the signal switching module 4. It should be noted that to prevent the signal switching module 4 from overheating and being damaged, several cooling fans are usually also installed inside the signal switching module 4. In this embodiment, the number of first heat dissipation holes 1521 is the same as the number of cooling fans in the signal switching module 4, and corresponds to the air outlet position of the cooling fans in the signal switching module 4. In addition, as shown in Figure 5, honeycomb-shaped heat dissipation holes can also be provided on the back side 154 for heat dissipation of the signal switching module 4.

[0049] The T1 test module 3 is located away from the top surface 151, i.e., at the bottom of the rectangular box, as shown in Figure 4. The first side 153 and / or the second side are also provided with honeycomb-shaped second heat dissipation holes 1531 for heat dissipation of the T1 test module 3. It should be noted that the T1 test module 3 is usually also equipped with several cooling fans. The number of second heat dissipation holes 1531 is consistent with the number of cooling fans in the T1 test module 3, and corresponds to the air outlet positions of the cooling fans in the T1 test module 3.

[0050] To further improve heat dissipation, in one embodiment, as shown in Figures 4 and 5, multiple heat dissipation grilles are provided on the front side 152, the back side 154, the first side side 153, and the second side side, respectively.

[0051] In one embodiment, as shown in Figure 5, the second fixing frame 15 further includes two fixing members 155 screwed between the rectangular box and the inner side of the cabinet door 1. The fixing members 155 can be Z-shaped plates, and the specific shape and structure can be referred to Figure 5. Of course, they can also be other shapes, which are not specifically limited here.

[0052] Figure 6 is a schematic diagram of the cable tray mechanism in one embodiment of the present invention. Since there are a large number of communication cables connecting the signal switching module 4 and the target cabinet 2, and between the T1 test module 3 and the human-machine interaction module 5, in order to avoid these cables interfering with the components of the target cabinet 2, in one embodiment, as shown in Figure 6, a cable tray mechanism 16 is also provided on the inner side of the cabinet door 1 for fixing the connecting cables of the T1 test module 3, the signal switching module 4, and the human-machine interaction module 5. The cable tray mechanism 16 may include a first cable tray 161 arranged horizontally inside the cabinet door 1 and a second cable tray 162 arranged vertically inside the cabinet door 1. The first cable tray 161 is preferably used to fix the cable between the signal switching module 4 and the target cabinet 2. The second cable tray 162 is preferably used to fix the cable connected to the human-machine interaction module 5. Of course, the first cable tray 161 and the second cable tray 162 are not limited to fixing a certain type of cable. Depending on the length of the cable on site, the first cable tray 161 and the second cable tray 162 can be used in combination to fix the cables between each module inside the cabinet door 1 without interfering with the components inside the target cabinet 2.

[0053] In one embodiment, as shown in Figures 2 and 3, the cabinet door 1 is also provided with a door lock 17. The door lock 17 can be an existing top and bottom bolt lock to lock the cabinet door 1 after it is closed.

[0054] In some embodiments, the cabinet-type T1 test device can draw power directly from the target cabinet 2. However, for embodiments where power cannot be drawn from the target cabinet 2, power needs to be drawn from the distribution box in the SIP room. Accordingly, the cabinet-type T1 test device may also include a power supply module 6 as shown in Figure 7. The power supply module 6 is electrically connected to the T1 test module 3, the signal switching module 4, and the human-machine interface module 5. The power supply module 6 is used to draw power from the distribution box to supply power to each module.

[0055] Figure 8 is a circuit diagram of the power supply module in one embodiment of the present invention. In one embodiment, referring to Figure 8, the power supply module 6 may include a voltage conversion unit 61 and a filtering unit 62. The voltage conversion unit 61 is electrically connected to the filtering unit 62, and the voltage conversion unit 61 is used to supply power to the T1 test module 3, the signal switching module 4, and the human-machine interaction module 5. The input terminal of the filtering unit 62 is electrically connected to the distribution box, and the output terminal of the filtering unit 62 is electrically connected to the voltage conversion unit 61. The voltage conversion unit 61 is electrically connected to the T1 test module 3, the signal switching module 4, and the human-machine interaction module 5.

[0056] Referring to Figure 8, the voltage conversion unit 61 may include a first DC power supply V1 and a second DC power supply V2. The first DC power supply V1 and the second DC power supply V2 are electrically connected to the distribution box via a filter unit 62 to obtain 220V AC power from the distribution box, and respectively convert the 220V AC power into 24V DC power to power the human-machine interaction module 5 and the signal switching module 4, and 28V DC power to power the T1 test module 3. The first DC power supply V1 may be a UHP-500-24 switching power supply, and the second DC power supply V2 may be an RSP-150-27 switching power supply.

[0057] The filter unit 62 is used to prevent overcurrent at the input of the voltage conversion unit 61 and to filter the input power supply of the voltage conversion unit 61.

[0058] Referring to Figure 8, the filtering unit 62 may include a filter AF, a surge protector FU1, a fuse assembly, and a circuit breaker assembly. The input terminal of the filter AF is used for electrical connection to the distribution box, and the input terminal of the filter AF is also connected to ground via the surge protector FU1. The output terminal of the filter AF is connected to the voltage conversion unit 61 via the fuse assembly and the circuit breaker assembly.

[0059] Among them, the filter AF can be a power filter with model number CW4L3-10A-S, and the surge protector FU1 can be a surge protector with model number NXU-II 40KA.

[0060] Referring to Figure 8, the fuse assembly may include a second fuse F2 electrically connected between one of the input terminals of the first DC power supply V1 and the filter AF, and a third fuse F3 electrically connected between one of the input terminals of the second DC power supply V2 and the filter AF. The function of the fuse is to melt and break when the corresponding DC power supply input is overcurrent, thereby protecting the DC power supply.

[0061] Referring to Figure 8, the circuit breaker assembly may include a second circuit breaker Q2 electrically connected between the first DC power supply V1 and the filter AF, and a third circuit breaker Q3 electrically connected between the second DC power supply V2 and the filter AF. The second circuit breaker Q2 and the third circuit breaker Q3 are used to control the on / off of the input power of the first DC power supply V1 and the second DC power supply V2, respectively.

[0062] In one embodiment, referring to Figure 8, the filter unit 62 may further include a first fuse F1 and a first circuit breaker Q1. The input terminal of the filter AF is connected to the output terminal of the first circuit breaker Q1, and the input terminal of the first circuit breaker Q1, after being connected to the first fuse F1, is used to connect to the distribution box. In this embodiment, the first circuit breaker Q1 can serve as the main power switch of the power supply module 6, while the first fuse F1 is used to blow when the total input current exceeds the limit, thereby preventing damage to the subsequent circuits due to overcurrent.

[0063] Because the distance from different target cabinets 2 to the power distribution box varies, the cable length required for the power supply module 6 to be electrically connected to the power distribution box is inconsistent in some embodiments. Due to the limited space in the SIP room, to avoid long power supply cables from the power distribution box scattering on the ground, occupying floor space, affecting staff work, and increasing the risk of staff being knocked over by more cables on the ground, in one embodiment (see Figure 9), the power supply module 6 also includes a cable reel XB and a terminal block assembly 7 located on the cabinet door 1. The input end of the terminal block assembly 7 is electrically connected to the voltage conversion unit 61 via a cable in the cable reel XB, and the output end of the terminal block assembly 7 is electrically connected to the T1 test module 3, the signal switching module 4, and the human-machine interface module 5 via cables. In this embodiment, the cable reel XB, the voltage conversion unit 61, and the filter unit 62 in the power supply module 6 can be located inside or near the power distribution box to avoid additional equipment occupying room floor space.

[0064] Further, referring to Figure 9, the terminal block assembly 7 may include a first aviation connector socket HC and at least three second aviation connector sockets HL (Figure 9 only shows one of them). The first aviation connector socket HC can be an existing 4-pin aviation connector socket to connect to the output terminals of the first DC power supply V1 and the second DC power supply V2, respectively. Each second aviation connector socket HL can be an existing 2-pin aviation connector socket to electrically connect to the first aviation connector socket HC to obtain 24V or 28V DC power from the first aviation connector socket HC. The second aviation connector socket HL also electrically connects to the T1 test module 3, the signal switching module 4, or the human-machine interface module 5. Additionally, the first aviation connector socket HC and each of the second aviation connector sockets HL are preferably located near the bottom of the mounting cabinet door 1.

[0065] It should be noted that, in order to improve the connection stability between cables, aviation connectors are preferably used for the interfaces and terminals of each module in this invention.

[0066] Understandably, the technical solution of this utility model installs the T1 test module 3 and the human-machine interaction module 5 in the cabinet door 1, and controls the communication connection between the T1 test module 3 and the target cabinet 2 through the signal switching module 4. This allows staff to conduct T1 tests on the target cabinet 2 on-site as needed, without having to plug and unplug cables for each test or move the T1 test module 3. This not only reduces the burden on staff, but also reduces the risk of cable damage and the risk of collision between the T1 test module 3 and SIP room equipment, significantly improving the efficiency of T1 testing and the safety of nuclear power plants.

[0067] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A cabinet-type T1 test device, used for mounting on a target cabinet (2), characterized in that, The cabinet-type T1 test device includes a cabinet door (1), which includes multiple hinges (11) for detachably hinged to the target cabinet (2), so that the cabinet door (1) can be closed or opened on the target cabinet (2); the cabinet door (1) is provided with a T1 test module (3), a signal switching module (4) and a human-machine interaction module (5), the signal switching module (4) is electrically connected to the T1 test module (3), the signal switching module (4) is used to electrically connect to the target cabinet (2) to control the test signal transmission between the target cabinet (2) and the T1 test module (3) during the T1 test, the human-machine interaction module (5) is electrically connected to the T1 test module (3), and the human-machine interaction module (5) is used to display test information.

2. The cabinet-door type T1 test device according to claim 1, characterized in that, The inner side of the cabinet door (1) forms a receiving space (12) opposite to the opening of the target cabinet (2). The receiving space (12) is used to accommodate the T1 test module (3) and the signal switching module (4). When the cabinet door (1) is closed on the target cabinet (2), the T1 test module (3) and the signal switching module (4) will not interfere with the equipment inside the target cabinet (2).

3. The cabinet-door type T1 test device according to claim 2, characterized in that, The cabinet door (1) is provided with a first through hole (13) for assembling the human-machine interaction module (5), a first fixing bracket (14) for fixing the human-machine interaction module (5), and a second fixing bracket (15) for fixing the signal switching module (4) and the T1 test module (3).

4. The cabinet-door type T1 test device according to claim 3, characterized in that, The second fixing frame (15) includes a rectangular box that is detachably mechanically connected to the inside of the cabinet door (1), and the signal switching module (4) and the T1 test module are located in the rectangular box.

5. The cabinet-door type T1 test device according to claim 4, characterized in that, The rectangular box includes a top surface (151), a front surface (152), a first side surface (153), and a second side surface opposite to the first side surface (153). The signal switching module (4) is installed in the rectangular box and close to the top surface (151). The top surface (151) has a second through hole (1511) that exposes the wiring port of the signal switching module (4) to the outside. The front surface (152) has a plurality of first heat dissipation holes (1521) for heat dissipation of the signal switching module (4). The T1 test module is installed in the rectangular box and away from the top surface (151). The first side surface (153) and / or the second side surface have second heat dissipation holes (1531) for heat dissipation of the T1 test module.

6. The cabinet-door type T1 test device according to claim 2, characterized in that, The inner side is provided with a cable tray mechanism (16) for fixing the connecting cables of the T1 test module (3), the signal switching module (4) and the human-machine interaction module (5); the cabinet door (1) is also provided with a door lock (17).

7. The cabinet-door type T1 test apparatus according to any one of claims 1 to 6, characterized in that, The cabinet-type T1 test device also includes a power supply module (6) that is electrically connected to the T1 test module (3), the signal switching module (4) and the human-machine interaction module (5) for drawing power from the distribution box to supply power to each module.

8. The cabinet-door type T1 test device according to claim 7, characterized in that, The power supply module (6) includes a voltage conversion unit (61) and a filtering unit (62). The voltage conversion unit (61) is used to supply power to the T1 test module (3), the signal switching module (4), and the human-machine interaction module (5). The filtering unit (62) is used to prevent overcurrent in the voltage conversion unit (61) and to filter the power input to the voltage conversion unit (61). The input terminal of the filtering unit (62) is used to electrically connect to the distribution box, and the output terminal of the filtering unit (62) is electrically connected to the voltage conversion unit (61). The voltage conversion unit (61) is electrically connected to the T1 test module (3), the signal switching module (4), and the human-machine interaction module (5).

9. The cabinet-door type T1 test device according to claim 8, characterized in that, The filtering unit (62) includes a filter AF, a surge protector FU1, a fuse assembly (623), and a circuit breaker assembly; the input terminal of the filter AF is used to electrically connect to the distribution box, and the input terminal of the filter AF is also connected to ground via the surge protector FU1; the output terminal of the filter AF is connected to the voltage conversion unit (61) via the fuse assembly and the circuit breaker assembly.

10. The cabinet-door type T1 test device according to claim 8, characterized in that, The power supply module (6) also includes a cable reel and a terminal block assembly (7) located on the cabinet door (1). The input end of the terminal block assembly (7) is electrically connected to the voltage conversion unit (61) via a cable in the cable reel. The output end of the terminal block assembly (7) is electrically connected to the T1 test module (3), the signal switching module (4), and the human-machine interaction module (5) via a cable.

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