Test fixture for testing power supply and network two-in-one lightning protection product

Abstract

The utility model relates to the field of lightning protection product testing, in particular to a test fixture for testing a power supply and network two-in-one lightning protection product, which comprises a control unit, a first relay, a second relay, a third relay and a mounting base, two groups of plugs and clamps are arranged on the mounting base, and a driving structure is arranged on the mounting base. The driving structure is used for driving the two groups of plugs to be respectively connected with a product input interface and a product output interface of the lightning protection product, the first relay is arranged between the first interface and the product input interface, and the second relay is arranged between the second interface and the product output interface; the lightning protection element tester is electrically connected with the product input interface of the lightning protection product, and the third relay is arranged between the lightning protection element tester and the product input interface of the lightning protection product. According to the application, the lightning protection product and the wire tester as well as the lightning protection element tester are more convenient to mount and dismount, and the switching among the test loops of the lightning protection product is quicker.

Description

Technical Field

[0001] The present application relates to the field of lightning protection product testing, and in particular to a test fixture for testing a two-in-one lightning protection product of a power supply and a network. Background Art

[0002] Most of the electronic components on network communication equipment are sensitive components and are very vulnerable to lightning strikes. Network communication equipment should be treated as a top priority in lightning protection measures. The power supply and network two-in-one lightning protection product can be connected to the power supply, control terminal and network cable on the network communication equipment, absorbing and discharging electromagnetic interference, pulses and other line surges in the power line and signal line from three aspects, protecting network communication equipment from lightning damage, and limiting the instantaneous overvoltage that penetrates into the power line and signal transmission line to the voltage range that the equipment or system can withstand, or discharging the strong lightning current into the ground to protect the network communication equipment from impact.

[0003] Reference Figure 1 The lightning protection product includes a housing 100, and two interfaces 110 are provided on both sides of the length direction of the housing 100, and the two interfaces are a network interface and a power interface. After the power and network two-in-one lightning protection product is produced, a lightning protection test needs to be performed. The current test requires first connecting the lightning protection product to a wire tester for an open and short circuit test, and then using a lightning protection component tester to detect the clamping voltage of the lightning protection product to detect whether the lightning protection product is qualified.

[0004] With respect to the above-mentioned related technologies, the inventors found that during the current testing, it is necessary to manually connect the lightning protection product to the wire tester and the lightning protection component tester. After the test, the wire tester is first disassembled and then connected to the lightning protection component tester. The installation and disassembly are complicated and troublesome, and the testing efficiency is low. Utility Model Content

[0005] In order to improve test efficiency, the present application provides a test fixture for testing a two-in-one lightning protection product of power supply and network.

[0006] The present application provides a test fixture for testing a two-in-one lightning protection product for power supply and network, which adopts the following technical solution:

[0007] A test fixture for testing a two-in-one lightning protection product of power supply and network, comprising a wire tester and a lightning protection component tester, and also comprising a control unit, a first relay, a second relay, a third relay and a mounting base, wherein the mounting base is provided with two groups of plugs and a clamp for clamping the lightning protection product, and the mounting base is provided with a driving structure, and the driving structure is used to drive the two groups of plugs to be connected to a product input interface and a product output interface of the lightning protection product respectively, the wire tester comprises a first interface and a second interface, the first interface and the second interface are respectively electrically connected to the product input interface and the product output interface of the lightning protection product, the first relay is arranged between the first interface and the product input interface, the second relay is arranged between the second interface and the product output interface, the lightning protection component tester is electrically connected to the product input interface of the lightning protection product, the third relay is arranged between the lightning protection component tester and the product input interface of the lightning protection product, and the control unit is used to control the conduction or disconnection of the first relay, the second relay and the third relay.

[0008] By adopting the above technical solution, during the test, the staff only needs to place the lightning protection product on the installation base, and then clamp the lightning protection product with the clamp. During this period, the driving structure drives the plug to be electrically connected to the lightning protection product. At this time, the control unit controls the first relay and the second relay to be turned on, so that the open short circuit test is performed through the wire tester. After the test is passed, the second relay is closed and the third relay is opened. At this time, the clamping voltage between the input lines of the lightning protection product and between the lines and the ground wire is detected by the lightning protection component tester, so that the installation and disassembly between the lightning protection product and the wire tester and the lightning protection component tester (varistor DC parameter tester) is more convenient, thereby improving the test efficiency.

[0009] Preferably, the fixture comprises a mounting block, a clamping block and a clamping cylinder, the piston rod of the clamping cylinder is connected to the clamping block, and when the piston rod of the clamping cylinder is extended, the clamping block and the mounting block respectively clamp both sides of the width direction of the lightning protection product.

[0010] By adopting the above technical solution, during testing, the staff only needs to place the lightning protection product on one side of the mounting block, and then turn on the clamping cylinder so that the clamping block and the mounting block respectively clamp the two sides of the lightning protection product in the width direction, thereby avoiding the movement of the lightning protection product during testing.

[0011] Preferably, a slot is provided on the mounting block, and a side of the lightning protection product in the width direction away from the clamping block is plugged into and matched with the slot.

[0012] By adopting the above technical solution, during testing, the staff only needs to plug the side of the lightning protection product away from the clamp block in the width direction into the slot to fix the position of the lightning protection product, thereby avoiding the movement of the lightning protection product during clamping and affecting subsequent tests.

[0013] Preferably, the driving structure comprises two driving cylinders, the piston rods of the two driving cylinders are connected to a pushing block, and the two groups of plugs are respectively connected to the two pushing blocks.

[0014] By adopting the above technical solution, during testing, the staff only needs to plug the side of the lightning protection product away from the clamp block in the width direction into the slot to fix the position of the lightning protection product, and then turn on the driving cylinder to make the push block drive the plug to connect with the interface, thereby making the installation and disassembly between the lightning protection product and the wire tester and the lightning protection component tester (varistor DC parameter tester) more convenient, and switching between the various test circuits of the lightning protection product is faster, saving time and effort.

[0015] Preferably, three mounting frames are provided on the mounting base, and the three mounting frames are respectively used to place two driving cylinders and one clamping cylinder. A cover plate is provided at the opening of each mounting frame, and a through hole is provided on the side wall of the mounting frame for the piston rod of the driving cylinder or the clamping cylinder to extend out.

[0016] By adopting the above technical solution, the clamping cylinder and the driving cylinder are placed in the installation frame, thereby protecting the clamping cylinder and the driving cylinder as well as the personal safety of the staff.

[0017] Preferably, the cover plate is made of transparent material.

[0018] By adopting the above technical solution, the staff can observe the working status of the driving cylinder and the clamping cylinder, so as to respond and repair in time when a fault occurs.

[0019] Preferably, a switch component is further included, and the switch component is used to control the driving cylinder and the clamping cylinder to extend or retract the piston rod.

[0020] By adopting the above technical solution, during testing, the staff can turn off the driving cylinder and the clamping cylinder in time through the switch part, thereby improving safety.

[0021] Preferably, it further comprises a plurality of fourth relays, wherein the plurality of fourth relays are all connected between the third relay and the product input interface and the plurality of fourth relays are arranged in parallel, and the control unit is used to control the disconnection or conduction of the plurality of fourth relays.

[0022] By adopting the above technical solution, multiple fourth relays can be connected to connect multiple circuits respectively to perform clamping voltage test on the lightning protection element between the power supply part and the network part of the lightning protection product, thereby improving the detection accuracy.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. During the test, the staff only needs to place the lightning protection product on the installation base, and then clamp the lightning protection product with a clamp. During this period, the driving structure drives the plug to be electrically connected to the lightning protection product. At this time, the control unit controls the first relay and the second relay to be turned on, so that the open and short circuit test is performed through the wire tester. After the test is passed, the second relay is closed and the third relay is opened. At this time, the clamping voltage between the input lines of the lightning protection product and between the line and the ground line is detected by the lightning protection component tester, so that the installation and disassembly between the lightning protection product and the wire tester and the lightning protection component tester is more convenient, thereby improving the test efficiency;

[0025] 2. During the test, the staff only needs to insert the side of the lightning protection product away from the clamp block in the width direction into the card slot to fix the position of the lightning protection product, thereby preventing the lightning protection product from moving during clamping and affecting subsequent tests;

[0026] 3. During the test, the staff only needs to plug the side of the lightning protection product away from the clamp block in the width direction into the slot to fix the position of the lightning protection product, and then turn on the driving cylinder to make the push block drive the plug to connect with the interface, thereby making the installation and disassembly between the lightning protection product and the wire tester and the lightning protection component tester (varistor DC parameter tester) more convenient, and switching between the various test circuits of the lightning protection product is faster, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the lightning protection product.

[0028] Figure 2 It is a structural block diagram of the test fixture of an embodiment of the present application.

[0029] Figure 3 This is a schematic diagram of the overall structure of the test fixture of the embodiment of the present application.

[0030] Figure 4 It is a partial structural diagram of the test jig of the embodiment of the present application, mainly showing the fixture and the driving structure.

[0031] Explanation of the reference numerals: 100, housing; 110, interface; 1, mounting base; 11, switch member; 21, mounting frame; 22, cover plate; 41, mounting block; 411, slot; 42, clamping block; 43, clamping cylinder; 51, driving cylinder; 52, pushing block; 53, plug. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] The present application embodiment discloses a test fixture for testing a two-in-one lightning protection product for power supply and network. Figure 1 , Figure 2 , Figure 3 A test fixture for testing a two-in-one lightning protection product for power supply and network includes a mounting base 1 having a rectangular top view, a wire tester and a lightning protection component tester 3. The mounting base 1 is provided with a clamp for clamping the lightning protection product and four plugs 53. The four plugs 53 are connected with a driving structure for driving the plugs 53 to be electrically connected to an interface 110 of the lightning protection product.

[0034] Reference Figure 3 , Figure 4 The fixture includes a mounting block 41, a clamping block 42 and a clamping cylinder 43. The clamping block 42 and the mounting block 41 are respectively located on both sides of the width direction of the lightning protection product. The bottom of the mounting block 41 is connected to the mounting base 1 by bolts, and the piston rod of the clamping cylinder 43 is connected to the clamping block 42 by bolts. A card slot 411 is provided on one side of the mounting block 41. The length of the card slot 411 is consistent with the length of the lightning protection product, and the height of the card slot 411 is consistent with the height of the lightning protection product, thereby realizing the plug-in cooperation between one side of the lightning protection product in the width direction and the card slot 411, so as to avoid the movement of the lightning protection product during the subsequent clamping period and affect the subsequent test. In addition, a groove for placing the lightning protection product housing 100 is provided on the clamping block 42.

[0035] The other four plugs 53 are evenly divided into two groups. The two plugs 53 in each group are different, and are respectively connected to the network interface 110 and the power interface 110 of the lightning protection product. The driving structure includes two driving cylinders 51. The piston rods of the two driving cylinders 51 are connected to connecting blocks by bolts, and the connecting blocks are connected to pushing blocks 52 by bolts. Each group of plugs 53 is connected to one side of the pushing block 52 close to one end of the lightning protection product.

[0036] From the top view, there are three mounting frames 21 on the mounting base 1, which are located on the left and right and below the mounting block 41 and are connected by bolts. The two left and right mounting frames 21 are larger than the lower mounting frame 21. The left and right mounting frames 21 are respectively used to place two driving cylinders 51, and the purpose of their setting is to hide the circuit. The lower mounting frame 21 is used to place the clamping cylinder 43. A cover plate 22 is fixed on the top of each mounting frame 21 by bolts to close the opening of the mounting frame 21. The cover plate 22 is made of a transparent acrylic plate to facilitate the staff to observe the working status. In addition, the side walls of the mounting frame 21 close to the lightning protection product are provided with through holes for the piston rod of the driving cylinder 51 or the clamping cylinder 43 to extend out. The through holes of the left and right mounting frames 21 can also facilitate the entry of the push block 52 to facilitate the installation of the lightning protection product.

[0037] In addition, a physical button-like switch 11 is provided on the mounting base 1. The switch 11 is used to control the driving cylinder 51 and the clamping cylinder 43 to extend or retract the piston rod. When the lightning protection product is plugged into the card slot 411, the staff can control the driving cylinder 51 and the clamping cylinder 43 to extend the piston rod through the switch 11 to start the test. When the test is completed or the test fails, the staff can promptly control the driving cylinder 51 and the clamping cylinder 43 to retract the piston rod through the switch to end the test.

[0038] Reference Figure 2 , Figure 3 Finally, the wire tester and the lightning protection component tester are connected to the mains. The lightning protection component tester can use a varistor DC parameter tester. The wire tester includes a first interface and a second interface, and also includes a control unit, a first relay Ka, a second relay Kb, and a third relay Kc. The control unit is connected to the control ends of the first relay Ka, the second relay Kb, and the third relay Kc. The lightning protection product includes a product input interface and a product output interface. When the two sets of plugs 53 are connected to the product input interface and the product output interface of the lightning protection product, the first interface and the second interface are respectively electrically connected to the product input interface and the product output interface of the lightning protection product. The first relay is arranged between the first interface and the product input interface, and the second relay is arranged between the second interface and the product output interface. When the wire tester is connected to the lightning protection product, the control unit controls the first relay and the second relay to be turned on. At this time, an open short circuit test is performed through the wire tester. The wire tester is connected to a buzzer and an indicator light. When the test fails, the buzzer emits a continuous alarm sound. When it passes, the indicator light turns green and the control buzzer emits a prompt sound to indicate that the test is passed.

[0039] There are also 16 fourth relays arranged between the third relay and the product input interface, and the control ends of the 16 fourth relays are all connected to the control unit. The 16 fourth relays are connected between the circuits of the power supply part and the network part of the lightning protection product to realize the parallel setting of the 16 fourth relays. In addition, the control unit is connected to the host computer. When the open short circuit test is qualified, the control unit controls the third relay to be turned on and the second relay to be disconnected, and then controls the 16 fourth relays to be turned on respectively to connect the 16 circuits to perform a clamping voltage test on the lightning protection components between the circuits of the power supply part and the network part of the product. The lightning protection component tester detects the clamping voltage between the input lines of the lightning protection product and between the lines and the ground wires and outputs a signal to the control unit, and the control unit then outputs a signal to the host computer. When the clamping voltage is in the set range, PASS is displayed on the display screen of the host computer, and when the clamping voltage is not in the set range, FALL is displayed on the display screen of the host computer, wherein the set range is input by the designer, and it is the voltage range when the lightning protection component is working normally.

[0040] In addition, the host computer can also store the above test data into the archive, and combine the QR code affixed to the lightning protection product with the archive information traceability. Subsequent users and staff can query the test data of the lightning protection product when it leaves the factory based on the product QR code on the lightning protection product.

[0041] The implementation principle of a test fixture for testing a two-in-one lightning protection product of power supply and network in an embodiment of the present application is as follows: during the test, the staff only needs to place the lightning protection product on the mounting base 1, and then clamp the lightning protection product with the clamp. During this period, the driving structure drives the plug 53 to be electrically connected to the lightning protection product. At this time, the control unit controls the first relay and the second relay to be turned on, so that an open and short circuit test is performed through the wire tester. After the test is passed, the second relay is closed and the third relay is opened. At this time, the clamping voltage between the input lines of the lightning protection product and between the lines and the ground line is detected by the lightning protection component tester, so that the installation and disassembly between the lightning protection product and the wire tester and the lightning protection component tester are more convenient, and the switching between the various circuits of the lightning protection product is faster, thereby improving the test efficiency.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A test fixture for testing a two-in-one lightning protection product of power supply and network, including a wire tester and a lightning protection component tester, characterized in that: The invention also comprises a control unit, a first relay, a second relay, a third relay and a mounting base (1), wherein the mounting base (1) is provided with two groups of plugs (53) and a clamp for clamping a lightning protection product, and the mounting base (1) is provided with a driving structure, wherein the driving structure is used to drive the two groups of plugs (53) to be connected to a product input interface and a product output interface of the lightning protection product respectively, the wire tester comprises a first interface and a second interface, wherein the first interface and the second interface are respectively electrically connected to the product input interface and the product output interface of the lightning protection product, the first relay is arranged between the first interface and the product input interface, the second relay is arranged between the second interface and the product output interface, the lightning protection component tester is electrically connected to the product input interface of the lightning protection product, the third relay is arranged between the lightning protection component tester and the product input interface of the lightning protection product, and the control unit is used to control the conduction or disconnection of the first relay, the second relay and the third relay.

2. A test fixture for testing a two-in-one lightning protection product for power supply and network according to claim 1, characterized in that: The clamp comprises a mounting block (41), a clamping block (42) and a clamping cylinder (43); a piston rod of the clamping cylinder (43) is connected to the clamping block (42); when the piston rod of the clamping cylinder (43) is extended, the clamping block (42) and the mounting block (41) respectively clamp two sides of the lightning protection product in a width direction.

3. A test fixture for testing a two-in-one lightning protection product for power supply and network according to claim 2, characterized in that: The mounting block (41) is provided with a slot (411), and a side of the lightning protection product in the width direction away from the clamping block (42) is plugged into and matched with the slot (411).

4. A test fixture for testing a two-in-one lightning protection product for power supply and network according to claim 2, characterized in that: The driving structure comprises two driving cylinders (51), the piston rods of the two driving cylinders (51) are both connected to a pushing block (52), and the two groups of plugs (53) are respectively connected to the two pushing blocks (52).

5. A test fixture for testing a two-in-one lightning protection product for power supply and network according to claim 4, characterized in that: Three mounting frames (21) are arranged on the mounting base (1), and the three mounting frames (21) are respectively used to place two driving cylinders (51) and one clamping cylinder (43). A cover plate (22) is arranged at the opening of each mounting frame (21), and a through hole is opened on the side wall of the mounting frame (21) for the piston rod of the driving cylinder (51) or the clamping cylinder (43) to extend out.

6. A test fixture for testing a two-in-one lightning protection product for power supply and network according to claim 5, characterized in that: The cover plate (22) is made of a transparent material.

7. A test fixture for testing a two-in-one lightning protection product for power supply and network according to claim 1, characterized in that: It also comprises a switch component (11), wherein the switch component (11) is used to control the driving cylinder (51) and the clamping cylinder (43) to extend or retract the piston rod.

8. A test fixture for testing a two-in-one lightning protection product for power supply and network according to claim 1, characterized in that: It also includes a plurality of fourth relays, which are all connected between the third relay and the product input interface and are arranged in parallel, and the control unit is used to control the disconnection or conduction of the plurality of fourth relays.

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