FMC bus short circuit test equipment
By designing an FMC bus short-circuit test device, and utilizing a PLC controller and positioning components, the problems of inaccurate time control and FMC bus detachment in traditional testing methods were solved, achieving efficient and accurate multi-line testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AIR FRANCE KLM ACCESSORIES SERVICES (SHANGHAI) CO LTD
- Filing Date
- 2025-03-11
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional manual short-circuit testing methods cannot accurately control the short-circuit time, affecting the testing progress and accuracy, and the FMC bus is prone to detachment during the testing process.
Design an FMC bus short-circuit test device, comprising a housing, a relay module, a DC power supply module, and a PLC controller. The PLC controller controls the relay module to perform short-circuit testing, and a positioning component prevents the FMC bus from falling off. Indicator lights display the test status, and a computer program is used to set the test script.
It enables simultaneous testing of multiple FMC buses, is simple to operate, saves manpower, improves testing efficiency and accuracy, prevents FMC bus detachment, and records test data.
Smart Images
Figure CN224176568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit testing technology, specifically an FMC bus short-circuit testing device. Background Technology
[0002] With the rapid advancement of electronic technology, the application scope of the FMC bus system in many electronic devices is expanding rapidly; during the short-circuit test, each signal line needs to be short-circuited to both the positive and negative terminals of the power supply.
[0003] Traditional testing methods use manual short-circuiting, which is achieved manually. However, due to human factors, this method affects the accuracy of test progress and time control, making it impossible to control the short-circuit time precisely. Utility Model Content
[0004] The purpose of this invention is to provide an FMC bus short-circuit test device that can simultaneously perform short-circuit tests on multiple FMC buses and also prevent the FMC buses from falling off during the test.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an FMC bus short-circuit test device, including a housing, inside which are arranged a relay module, a DC power supply module and a PLC controller, a plurality of interfaces one electrically connected to the relay module are fixedly provided on one side of the housing, a positioning component is provided on the outside of the interface one, an indicator light electrically connected to the relay module is provided on the top of the housing, and an interface two electrically connected to the PLC controller is fixedly provided on the other side of the housing.
[0006] A further feature of this invention is that a T-shaped partition is fixedly provided inside the housing, dividing the housing into cavity one, cavity two, and cavity three. The relay module, DC power supply module, and PLC controller are respectively installed inside cavity one, cavity two, and cavity three. The partition is provided with slots on its side.
[0007] A further feature of this invention is that the front and back of the housing are provided with mounting grooves, a maintenance plate is embedded in the front of the housing, and a display electrically connected to the PLC controller is fixedly mounted on the surface of the maintenance plate. The maintenance plate is connected to the corresponding mounting groove by fixing bolts.
[0008] A further feature of this invention is that a heat sink is embedded on the back of the housing, the surface of the heat sink has heat dissipation holes, and the heat sink is connected to the corresponding mounting groove by fixing bolts.
[0009] A further feature of this invention is that the relay module includes multiple relays, each relay having two channel ports, one channel port being connected to the positive or negative terminal of the DC power module, and the other channel port being connected to interface one.
[0010] A further feature of this invention is that a lamp holder electrically connected to a relay is fixedly provided at the top of the housing, and the indicator light is threadedly mounted on the lamp holder, with the two being electrically connected.
[0011] A further feature of this invention is that the positioning component includes an upper and lower symmetrical mounting plate and a positioning plate. The mounting plate is fixedly disposed on one side of the housing and is located on the upper and lower sides of the interface. The mounting plate is connected to the positioning plate by a connecting spring. The side of the positioning plate is fixedly provided with a protrusion. The positioning plates are provided with arc-shaped positioning grooves at positions close to each other.
[0012] A further feature of this invention is that the positioning groove has a shrinkage groove inside, a sealing plate is slidably provided inside the shrinkage groove, and the sealing plate is connected to the inner side of the shrinkage groove through a connecting spring.
[0013] In summary, this utility model has the following beneficial effects: This utility model uses a PLC controller to control the on / off state of a relay module to achieve short-circuit testing of the FMC bus. It can be used to test multiple FMC buses simultaneously, is simple to operate, requires no personnel supervision during operation, saves manpower, and improves testing efficiency. Furthermore, the PLC controller can record test steps, and test scripts can be set independently through computer programming to meet different testing needs. Additionally, the positioning component can limit the position of the inserted FMC bus, preventing it from falling off during testing and improving testing accuracy. Attached Figure Description
[0014] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;
[0015] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;
[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0017] Figure 4 This is a schematic diagram of the exploded structure of this utility model;
[0018] Figure 5 This is an exploded magnified structural diagram of the positioning component of this utility model.
[0019] In the diagram: 1. Housing; 101. Divider; 102. Groove; 103. Cavity 1; 104. Cavity 2; 105. Cavity 3; 2. Inspection plate; 201. Display; 3. Heat sink; 4. Relay module; 401. Indicator light; 5. DC power module; 6. PLC controller; 7. Interface 1; 8. Positioning component; 801. Mounting plate; 802. Connecting spring 1; 803. Positioning plate; 804. Protrusion; 805. Positioning groove; 806. Shrinkage groove; 807. Sealing plate; 9. Interface 2. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings of the embodiments thereof.
[0021] Please see Figures 1-5 In this embodiment of the present invention, an FMC bus short-circuit test device includes a housing 1. Inside the housing 1 are a relay module 4, a DC power supply module 5, and a PLC controller 6. The relay module 4 includes multiple relays, each relay having two channel ports. One channel port is connected to the positive or negative terminal of the DC power supply module 5, and the other channel port is connected to interface 7. A lamp holder electrically connected to the relays is fixedly mounted on the top of the housing 1. An indicator light 401 is threaded onto the lamp holder, and the two are electrically connected. The PLC controller 6 is a self-powered PLC controller. Multiple interfaces electrically connected to the relay module 4 are fixedly mounted on one side of the housing 1. 7. A positioning component 8 is provided on the outside of interface 7 to position the FMC bus and prevent it from falling off during testing, thus improving the accuracy of the test. An indicator light 401 electrically connected to the relay module 4 is provided on the top of the housing 1. When the test starts, the working status of each relay can be intuitively displayed by the indicator light 401 being constantly lit or flashing. An interface 9 electrically connected to the PLC controller 6 is fixed on the other side of the housing 1. The PLC controller 6 is electrically connected to the computer by inserting the connecting cable. The test script of the PLC controller 6 is set by computer programming. A dust cover is snapped on the end of interface 9 to prevent dust from entering when not in use.
[0022] In this embodiment, preferably, a T-shaped partition 101 is fixedly provided inside the housing 1, dividing the housing 1 into cavity one 103, cavity two 104 and cavity three 105. The relay module 4, DC power module 5 and PLC controller 6 are respectively arranged inside cavity one 103, cavity two 104 and cavity three 105, separating cavity one 103, cavity two 104 and cavity three 105 so that they do not interfere with each other. The partition 101 has a slot 102 on its side to facilitate wiring between the components.
[0023] In this embodiment, preferably, the front and back of the housing 1 are provided with mounting grooves, the front of the housing 1 is provided with a maintenance plate 2, and the surface of the maintenance plate 2 is fixed with a display 201 electrically connected to the PLC controller 6 for displaying information such as the test status of the relay module 4. The maintenance plate 2 is connected to the corresponding mounting groove by fixing bolts, which facilitates the disassembly and assembly of the maintenance plate 2.
[0024] In this embodiment, preferably, a heat sink 3 is embedded on the back of the housing 1. The surface of the heat sink 3 is provided with heat dissipation holes to ventilate and dissipate heat inside the housing 1. At the same time, the heat sink 3 is connected to the corresponding mounting slot by fixing bolts, which facilitates the disassembly and assembly of the heat sink 3.
[0025] In this embodiment, preferably, the positioning component 8 includes a mounting plate 801 and a positioning plate 803 that are symmetrically arranged vertically. The mounting plate 801 is fixedly disposed on one side of the housing 1 and is located on the upper and lower sides of the interface 7. The mounting plate 801 is connected to the positioning plate 803 by a connecting spring 802. Under the elastic action of the connecting spring 802, two adjacent positioning plates 803 can be made to fit together, thereby limiting the position of the FMC bus between them. The side of the positioning plate 803 is fixedly provided with a protrusion 804. The protrusion 804 can be used to pull the positioning plate 803 to move. The positioning plates 803 are provided with an arc-shaped positioning groove 805 at the position close to each other. The positioning groove 805 fits with the surface of the FMC bus, thereby positioning the FMC bus inserted into the interface 7 to prevent it from falling off.
[0026] In this embodiment, preferably, the positioning groove 805 is provided with a shrinkage groove 806 inside, and a sealing plate 807 is slidably provided inside the shrinkage groove 806. The sealing plate 807 is connected to the inner side of the shrinkage groove 806 through a connecting spring 808. The elastic coefficient of the connecting spring 802 is much greater than that of the connecting spring 808, so that when adjacent positioning plates 803 pass through the FMC bus, the sealing plate 807 can be compressed into the shrinkage groove 806. When no further wiring is needed, the adjacent sealing plates 807 can be pressed together to seal the interface 7.
[0027] In use, first insert one end of the data cable into the computer's USB port and the other end into interface 9, electrically connecting the PLC controller 6 to the computer. Then, program the test script for the PLC controller 6 using the computer. Next, pull the positioning plate 803 away from each other using the protrusion 804. Then, insert one end of the FMC bus to be tested into interface 7, electrically connecting the FMC bus to the relay module 4. Under the elastic action of the connecting spring 802, the positioning plates 803 are brought closer together. The positioning groove 805 clamps and limits the FMC bus, preventing it from falling off during testing and affecting the accuracy of the test data. The FMC bus is connected to the channel ports of each relay used for testing. Another channel port of the relay is connected to the DC power supply module 5 according to the test requirements. The channel port of the FMC bus to be short-circuited and the test time are set by the computer. After the short-circuit test starts, the PLC controller 6 starts timing. The indicator light 401 of the relay module 4 in the test state lights up. The short-circuit test time is set to 15 minutes. When the short-circuit time reaches the set time, the PLC controller 6 disconnects the relay in the test state, the short-circuit test ends, and the corresponding L indicator light 401 flashes. The test data is recorded in the memory of the PLC controller 6, thus realizing the short-circuit test of the FMC bus.
[0028] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. An FMC bus short-circuit test device, comprising a housing (1), characterized in that, The housing (1) is equipped with a relay module (4), a DC power supply module (5) and a PLC controller (6). One side of the housing (1) is fixed with multiple interfaces (7) that are electrically connected to the relay module (4). The outer side of the interface (7) is equipped with a positioning component (8). The top of the housing (1) is equipped with an indicator light (401) that is electrically connected to the relay module (4). The other side of the housing (1) is fixed with an interface (9) that is electrically connected to the PLC controller (6).
2. The FMC bus short-circuit test device according to claim 1, characterized in that: The housing (1) is fixedly provided with a T-shaped partition (101) inside, which divides the housing (1) into cavity one (103), cavity two (104) and cavity three (105). The relay module (4), DC power module (5) and PLC controller (6) are respectively installed inside cavity one (103), cavity two (104) and cavity three (105). The partition (101) is provided with a slot (102) on the side.
3. The FMC bus short-circuit test device according to claim 1, characterized in that: The housing (1) has mounting grooves on both the front and back sides. A maintenance plate (2) is embedded on the front side of the housing (1). A display (201) electrically connected to the PLC controller (6) is fixed on the surface of the maintenance plate (2). The maintenance plate (2) is connected to the corresponding mounting groove by fixing bolts.
4. The FMC bus short-circuit test device according to claim 3, characterized in that: The back of the housing (1) is fitted with a heat sink (3), and the surface of the heat sink (3) is provided with heat dissipation holes. At the same time, the heat sink (3) is connected to the corresponding mounting groove by fixing bolts.
5. The FMC bus short-circuit test device according to claim 1, characterized in that: The relay module (4) includes multiple relays, each relay having two channel ports. One channel port is connected to the positive or negative terminal of the DC power module (5), and the other channel port is connected to interface one (7).
6. The FMC bus short-circuit test device according to claim 1, characterized in that: The top of the housing (1) is fixedly provided with a lamp holder that is electrically connected to the relay. The indicator light (401) is threaded onto the lamp holder and the two are electrically connected.
7. The FMC bus short-circuit test device according to claim 1, characterized in that: The positioning component (8) includes a mounting plate (801) and a positioning plate (803) that are symmetrically arranged on the upper and lower sides. The mounting plate (801) is fixedly arranged on one side of the housing (1) and is located on the upper and lower sides of the interface (7). The mounting plate (801) is connected to the positioning plate (803) by a connecting spring (802). The side of the positioning plate (803) is fixedly provided with a protrusion (804). The positioning plates (803) are provided with an arc-shaped positioning groove (805) at the positions close to each other.
8. The FMC bus short-circuit test device according to claim 7, characterized in that: The positioning groove (805) has a shrinkage groove (806) inside, and a sealing plate (807) is slidably provided inside the shrinkage groove (806). The sealing plate (807) is connected to the inner side of the shrinkage groove (806) through a connecting spring (808).