Multiple resistance series load testing device

Abstract

The utility model relates to resistance test technical field, relate to a kind of multiple resistance series connection load testing device.The utility model is welded in test resistance on test station, and the positioning rod corresponding to test station is worn on signal acquisition end, and the one end of the conducting rod on the acquisition component is connected with positioning rod, and conducting rod and signal acquisition end abutment communication, and the export end of the other end of conducting rod is connected with collection rod, and the signal acquisition equipment of signal output to outside is carried out load test by the test resistance signal of line board collection through wire arrangement, so that it can be always powered load work, read real-time data or monitoring process data, multiple same specification product's experimental test can be tested simultaneously, without repeatedly disassembling and assembling;Positioning mechanism, conducting mechanism and test mechanism are used in cooperation, realize the demand of multiple resistance product series connection load detection, can be connected to resistance conducting quickly, be favorable to reduce production cost, improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of resistance testing technology, and specifically to a multi-resistor series load testing device. Background Technology

[0002] Large power supply equipment, medical equipment, and electrical instruments often require the absorption of excess power during use. The high-power-consuming resistor used here is the load resistor. To prevent malfunctions, existing resistive load testing typically requires the load to be continuously powered on to read real-time data or monitor process data. This is used for simultaneous testing of multiple products of the same specifications, such as stability testing, rated power testing, humidity steady-state testing, high humidity testing, and lifespan testing.

[0003] Existing resistance series load testing is generally a non-standard test. Before each test, connecting wires must be soldered to the voltage signal acquisition terminal of each product so that real-time or process data of the product can be monitored outside the test system. The corresponding two connecting wires of each sample must also be labeled for identification. This approach requires a large number of connecting wires, and these connecting wires are all single-use (discarded after the experiment is completed), which will cause a lot of material waste. Testers also have to do a lot of complicated and repetitive work, which affects the testing efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an experimental test device that can test multiple products of the same specification at the same time without repeated disassembly and assembly, realize the need for series load testing of multiple resistor products, and improve test efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A multi-resistor series load testing device, comprising:

[0007] The test board has multiple test stations evenly arranged on it for mounting resistors, and each test station is equipped with a signal acquisition terminal.

[0008] A positioning mechanism includes a positioning plate, on which a plurality of positioning components are evenly arranged. Each positioning component is arranged in a one-to-one correspondence with a signal acquisition terminal. Each positioning component includes two positioning rods, which are inserted through the signal acquisition terminal.

[0009] A conducting mechanism includes a conducting frame on which multiple acquisition components are evenly arranged. Each acquisition component corresponds to a positioning component. Each acquisition component includes two conducting rods. One end of each conducting rod is connected to a positioning rod, and the conducting rod is in contact with and communicates with the signal acquisition end. The other end of each conducting rod is provided with an output end.

[0010] The testing mechanism includes a testing frame, on which a circuit board is mounted. Multiple collecting components are evenly arranged on the circuit board, and each collecting component corresponds to a collecting component. Each collecting component includes two collecting rods, one end of which is connected to the circuit board and the other end of which is connected to a conductive rod.

[0011] In one embodiment of this utility model, the test station includes a resistance welding base, the signal acquisition end is two test holes, the inner wall and edge of the test holes are provided with a conductive layer, the test holes are electrically connected to the welding points on the resistance welding base, and the test board has two load terminals, the load terminals are electrically connected to each resistance welding base.

[0012] In one embodiment of this utility model, a connecting plate is provided on the conductive rod, a conductive ring is provided on the connecting plate, the positioning rod passes through the conductive hole of the conductive ring, and the conductive ring is connected to the conductive layer on the test hole.

[0013] In one embodiment of the present invention, the positioning mechanism further includes a nut, and the outer side of the positioning rod is provided with an external thread. The nut is connected to the external thread on the positioning rod, and the nut is screwed into the positioning rod to press the conductive ring and the conductive layer together.

[0014] In one embodiment of this utility model, the conductive layer and the conductive ring are made of copper or copper alloy.

[0015] In one embodiment of this utility model, a conductive cylinder is provided at the bottom of the conductive rod, a guide hole is provided on the conductive cylinder, the positioning rod is inserted into the guide hole, and the free end of the conductive cylinder is connected to the conductive layer on the test hole.

[0016] In one embodiment of this utility model, a limiting rod is provided at the bottom of the guide hole, and a mating hole matching the limiting rod is provided on the free end of the positioning rod, and the limiting rod is inserted into the mating hole; a positioning ring groove is provided on the inner wall of the guide hole, and a positioning protrusion matching the positioning ring groove is provided on the outer wall of the positioning rod, and the positioning protrusion is engaged in the positioning ring groove.

[0017] In one embodiment of this utility model, the collecting rod and the conducting rod are made of conductive material, and the positioning rod is made of conductive material or insulating material.

[0018] In one embodiment of this utility model, a heat dissipation pipe is provided inside the positioning plate. The heat dissipation pipe has a serpentine structure. A water inlet pipe is provided on the water inlet of the heat dissipation pipe, and a water outlet pipe is provided on the water outlet of the heat dissipation pipe.

[0019] In one embodiment of this utility model, a plurality of positioning grooves are evenly arranged on the positioning plate, the positioning grooves are filled with insulating blocks, the two positioning rods pass through the insulating blocks, and the positioning rods are provided with limit blocks so that the positioning rods cannot be detached from the insulating blocks.

[0020] The beneficial effects of this utility model are:

[0021] This invention involves soldering a test resistor onto a test station. A positioning rod corresponding to the test station is inserted through the signal acquisition terminal. One end of a conductive rod on the acquisition component is connected to the positioning rod, and the conductive rod abuts and communicates with the signal acquisition terminal. The other end of the conductive rod is connected to a collecting rod. The circuit board outputs the collected test resistor signal through a ribbon cable to an external signal acquisition device for load testing, allowing it to continuously operate under load, read real-time data, or monitor process data. It can simultaneously test multiple products of the same specification without repeated disassembly and assembly. The positioning mechanism, conductive mechanism, and testing mechanism work together to meet the needs of series load testing of multiple resistor products, enabling rapid connection and conduction of resistors, which helps reduce production costs and improve testing efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a multi-resistor series load testing device according to the present invention.

[0023] Figure 2 This is a schematic diagram of the test board of this utility model.

[0024] Figure 3 This is a schematic diagram of the positioning plate of this utility model.

[0025] Figure 4 This is a schematic diagram of the conduction mechanism of this utility model.

[0026] Figure 5 This is a schematic diagram of the positioning mechanism of this utility model.

[0027] The following are the labeling instructions in the diagram: 1. Test plate; 11. Test station; 12. Resistance welding seat; 13. Test hole; 2. Positioning plate; 21. Heat dissipation pipe; 22. Water inlet pipe; 23. Water outlet pipe; 24. Positioning groove; 25. Insulating block; 26. Positioning rod; 27. Positioning mechanism; 28. Limiting block; 3. Conducting mechanism; 31. Conducting frame; 32. Data acquisition component; 33. Conducting rod; 34. Outlet end; 35. Connecting plate; 36. Conductive ring; 37. Nut; 38. Conductive layer; 4. Test mechanism; 41. Test frame; 42. Collection component; 43. Circuit board; 44. Collection rod; 5. Conductive cylinder; 51. Positioning ring groove; 52. Positioning protrusion; 53. Limiting rod; 54. Connecting hole. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figure 1-5 As shown, a multi-resistor series load testing device includes:

[0030] Test board 1, on which multiple test stations 11 for installing resistors are evenly arranged, and each test station 11 is equipped with a signal acquisition terminal;

[0031] The positioning mechanism 27 includes a positioning plate 2, on which a plurality of positioning components are evenly arranged. Each positioning component is arranged in a one-to-one correspondence with a signal acquisition end. Each positioning component includes two positioning rods 26, which are inserted through the signal acquisition end.

[0032] The conducting mechanism 3 includes a conducting frame 31, on which a plurality of acquisition components 32 are evenly arranged. Each acquisition component 32 is arranged in a one-to-one correspondence with a positioning component. Each acquisition component 32 includes two conducting rods 33. One end of each conducting rod 33 is connected to a positioning rod 26, and the conducting rod 33 is in contact with and communicates with the signal acquisition end. The other end of each conducting rod 33 is provided with an output end 34.

[0033] The testing mechanism 4 includes a testing frame 41, on which a circuit board 43 is provided. Multiple collecting components 42 are evenly arranged on the circuit board 43. Each collecting component 42 corresponds to a collecting component 32. Each collecting component 42 includes two collecting rods 44. One end of each collecting rod 44 is connected to the circuit board 43, and the other end is connected to the conducting rod 33.

[0034] This invention welds the test resistor onto the test station 11. The positioning rod 26 corresponding to the test station 11 passes through the signal acquisition end. One end of the conducting rod 33 on the acquisition component 32 is connected to the positioning rod 26, and the conducting rod 33 abuts and communicates with the signal acquisition end. The other end of the conducting rod 33, the outlet end 34, is connected to the collecting rod 44. The circuit board 43 outputs the collected test resistor signal to an external signal acquisition device through a ribbon cable for load testing, allowing it to continuously operate under load, read real-time data or monitor process data. It can simultaneously test multiple products of the same specification without repeated disassembly and assembly. The positioning mechanism 27, the conducting mechanism 3, and the test mechanism 4 work together to meet the needs of series load testing of multiple resistor products. It can quickly connect and conduct resistors, which helps to reduce production costs and improve testing efficiency.

[0035] The test frame 41 and the conductor frame 31 of this utility model can adopt existing quick connection structures such as snap-fit ​​and clamp, such as European-style male and female sockets or multi-wire terminal male and female plugs, so that the collecting rod 44 on the test frame 41 is connected to the conductor rod 33 on the conductor frame 31.

[0036] In one embodiment of the present invention, the test station 11 includes a resistance welding base 12, the signal acquisition end is two test holes 13, the inner wall and edge of the test holes 13 are provided with a conductive layer 38, the test holes 13 are electrically connected to the welding points on the resistance welding base 12, and the test board 1 has two load terminals, the load terminals are electrically connected to each resistance welding base 12.

[0037] Specifically, the test resistor is soldered onto the corresponding resistance soldering base 12. The conductive layer 38 on each test hole 13 is electrically connected to the soldering point on the resistance soldering base 12. The conductive ring 36 or conductive cylinder 5 on the conductive rod 33 is electrically connected to the conductive layer 38 on the test hole 13. Voltage or current is applied to the load end of the test board 1. The circuit board 43 outputs the collected test resistor signal to an external signal acquisition device through a ribbon cable for load testing. It can carry a larger load current and voltage and increase the heat dissipation speed when the current is applied, thus realizing the test of the resistance load stability under large current and voltage.

[0038] In one embodiment of this utility model, a connecting plate 35 is provided on the conductive rod 33, and a conductive ring 36 is provided on the connecting plate 35. The positioning rod 26 passes through the conductive hole of the conductive ring 36, and the conductive ring 36 is connected to the conductive layer 38 on the test hole 13.

[0039] Specifically, the positioning rod 26 passes through the conductive hole of the conductive ring 36, and the conductive ring 36 is connected to the conductive layer 38 on the test hole 13. Through the quick connection between the conductive ring 36 and the conductive layer 38, the circuit board 43 outputs the collected test resistance signal to an external signal acquisition device through a ribbon cable for load testing, so that it can be continuously powered on and the load can be operated to read real-time data or monitor process data, thereby improving test efficiency.

[0040] In one embodiment of the present invention, the positioning mechanism 27 further includes a nut 37, the outer side of the positioning rod 26 is provided with an external thread, the nut 37 is connected to the external thread on the positioning rod 26, and the nut 37 is screwed into the positioning rod 26 to press the conductive ring 36 and the conductive layer 38 tightly together.

[0041] Specifically, the nut 37 is screwed into the positioning rod 26 to press the conductive ring 36 and the conductive layer 38 together. This connection between the conductive ring 36 and the conductive layer 38 can fix the conduction mechanism 3, the test plate 1 and the positioning plate 2, effectively preventing the conductive ring 36 from separating from the conductive layer 38 due to shaking, and ensuring the stability of the electrical signal transmission.

[0042] In one embodiment of this utility model, the conductive layer 38 and the conductive ring 36 are made of copper or copper alloy.

[0043] Specifically, the conductive layer 38, the conductive ring 36, and the conductive cylinder 5 are made of copper or copper alloy, which effectively ensures the transmission of resistance signals, improves the accuracy of resistance load detection, and ensures the stability of electrical signal transmission.

[0044] In another embodiment of this utility model, a conductive cylinder 5 is provided at the bottom of the conductive rod 33, a guide hole is provided on the conductive cylinder 5, the positioning rod 26 is inserted into the guide hole, and the free end of the conductive cylinder 5 is connected to the conductive layer 38 on the test hole 13.

[0045] Specifically, the free end of the conductive cylinder 5 is connected to the conductive layer 38 on the test hole 13, and the positioning rod 26 is inserted into the guide hole to realize the rapid assembly of the conductive mechanism 3 and the positioning mechanism 27, reduce the difficulty of connection, and ensure the stability of electrical connection.

[0046] In one embodiment of this utility model, a limiting rod 53 is provided at the bottom of the guide hole, and a mating hole 54 matching the limiting rod 53 is provided on the free end of the positioning rod 26, and the limiting rod 53 is inserted into the mating hole 54; a positioning ring groove 51 is provided on the inner wall of the guide hole, and a positioning protrusion 52 matching the positioning ring groove 51 is provided on the outer wall of the positioning rod 26, and the positioning protrusion 52 is engaged in the positioning ring groove 51.

[0047] Specifically, the limiting rod 53 is inserted into the docking hole 54 and works in conjunction with the positioning rod 26 inserted into the conductive cylinder 5 to ensure the positional accuracy of the positioning rod 26 and the conductive cylinder 5, and to ensure the connection between the conductive cylinder 5 and the conductive layer 38. The outer wall of the positioning rod 26 is provided with a positioning protrusion 52 that matches the positioning ring groove 51. The positioning protrusion 52 is engaged in the positioning ring groove 51, which can tighten the conductive cylinder 5 onto the positioning rod 26. The two can be inserted together without the need for fasteners such as nuts 37, which enables quick insertion and removal connection, improves assembly efficiency, and ensures the connection accuracy of the two.

[0048] In one embodiment of this utility model, the collecting rod 44 and the conducting rod 33 are made of conductive material, and the positioning rod 26 is made of conductive material or insulating material.

[0049] Specifically, the collecting rod 44 and the conducting rod 33 are made of conductive material and can be connected to the conductive layer 38 on the test hole 13, so that the circuit board 43 receives the resistance signal from the resistance soldering seat 12 which is electrically connected to the conductive layer 38, ensuring test accuracy. When the positioning rod 26 is made of conductive material, the positioning rod 26 can be used as a wire to connect the conducting rod 33 and the conductive layer 38, ensuring the electrical connection effect. When the positioning rod 26 is made of insulating material, it can avoid problems such as electric arc between the positioning rod 26 and the conducting rod 33, ensuring test safety.

[0050] In one embodiment of the present invention, a heat dissipation pipe 21 is provided inside the positioning plate 2. The heat dissipation pipe 21 has a serpentine structure. A water inlet pipe 22 is provided on the water inlet of the heat dissipation pipe 21, and a water outlet pipe 23 is provided on the water outlet of the heat dissipation pipe 21.

[0051] Specifically, the water inlet pipe 22 inlets water and the water outlet pipe 23 outlet water complete the water circulation, thereby dissipating heat from the load resistor on the side guard plate. The flow rate of the water entering the heat dissipation pipe 21 can also be adjusted by the existing water flow rate, easily adjusting the temperature of the positioning plate 2 to achieve the specified test purpose, thus facilitating the testing of the series load function of the resistor product.

[0052] In one embodiment of the present invention, a plurality of positioning grooves 24 are evenly arranged on the positioning plate 2, and the positioning grooves 24 are filled with insulating blocks 25. The two positioning rods 26 are inserted through the insulating blocks 25, and the positioning rods 26 are provided with limit blocks 28 so that the positioning rods 26 cannot be detached from the insulating blocks 25.

[0053] Specifically, a limiting block 28 is provided on the positioning rod 26 to prevent the positioning rod 26 from detaching from the insulating block 25, thus ensuring the positioning effect of the positioning rod 26 on the test plate 1 and improving the testing accuracy. Multiple positioning slots 24 are evenly provided on the positioning plate 2 to avoid interference between tests. At the same time, the two positioning rods 26 pass through the insulating block 25, and the positioning slots 24 are filled with insulating blocks 25, which facilitates the replacement and maintenance of each positioning component and reduces the cost of use.

[0054] Usage process

[0055] The test resistor is soldered onto the corresponding resistance soldering base 12. The conductive layer 38 on each test hole 13 is electrically connected to the solder point on the resistance soldering base 12. The test plate 1 is placed on the positioning plate 2 of the positioning mechanism 27, so that the two positioning rods 26 on each positioning component pass through the test hole 13. Then, the acquisition component 32 on the conductive frame 31 is aligned and connected with the positioning component. The conductive ring 36 or conductive cylinder 5 on the conductive rod 33 is electrically connected to the conductive layer 38 on the test hole 13. The collection component 42 on the test frame 41 corresponds one-to-one with the acquisition component 32. The collecting rod 44 on board 43 is connected to the conducting rod 33. Voltage or current is applied to the load end of the test board 1. The circuit board 43 outputs the collected test resistance signal to an external signal acquisition device through a ribbon cable for load testing, so that it can be continuously powered on and the load can be operated. Real-time data or process data can be read or monitored. It can simultaneously test multiple products of the same specification without repeated disassembly and assembly, realizing the need for series load testing of multiple resistor products. The external signal acquisition device can conveniently save and view the data, which helps to reduce production costs and improve testing efficiency.

[0056] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A multi-resistor series load testing device, characterized in that, include: The test board has multiple test stations evenly arranged on it for mounting resistors, and each test station is equipped with a signal acquisition terminal. A positioning mechanism includes a positioning plate, on which a plurality of positioning components are evenly arranged. Each positioning component is arranged in a one-to-one correspondence with a signal acquisition terminal. Each positioning component includes two positioning rods, which are inserted through the signal acquisition terminal. A conducting mechanism includes a conducting frame on which multiple acquisition components are evenly arranged. Each acquisition component corresponds to a positioning component. Each acquisition component includes two conducting rods. One end of each conducting rod is connected to a positioning rod, and the conducting rod is in contact with and communicates with the signal acquisition end. The other end of each conducting rod is provided with an output end. The testing mechanism includes a testing frame, on which a circuit board is mounted. Multiple collecting components are evenly arranged on the circuit board, and each collecting component corresponds to a collecting component. Each collecting component includes two collecting rods, one end of which is connected to the circuit board and the other end of which is connected to a conductive rod.

2. The multi-resistor series load testing device as described in claim 1, characterized in that, The test station includes a resistance welding stand, the signal acquisition end has two test holes, the inner wall and edge of the test holes are provided with a conductive layer, the test holes are electrically connected to the welding points on the resistance welding stand, and the test board has two load terminals, which are electrically connected to each resistance welding stand.

3. The multi-resistor series load testing device as described in claim 2, characterized in that, The conductive rod is provided with a connecting plate, the connecting plate has a conductive ring, the positioning rod passes through the conductive hole of the conductive ring, and the conductive ring is connected to the conductive layer on the test hole.

4. The multi-resistor series load testing device as described in claim 3, characterized in that, The positioning mechanism also includes a nut, and the outer side of the positioning rod is provided with an external thread. The nut is connected to the external thread on the positioning rod, and the nut is screwed into the positioning rod to press the conductive ring and the conductive layer tightly together.

5. The multi-resistor series load testing device as described in claim 3, characterized in that, The conductive layer and the conductive ring are made of copper or copper alloy.

6. The multi-resistor series load testing device as described in claim 2, characterized in that, A conductive cylinder is provided at the bottom of the conductive rod, and a guide hole is provided on the conductive cylinder. The positioning rod is inserted into the guide hole, and the free end of the conductive cylinder is connected to the conductive layer on the test hole.

7. The multi-resistor series load testing device as described in claim 6, characterized in that, A limiting rod is provided at the bottom of the guide hole, and a mating hole matching the limiting rod is provided on the free end of the positioning rod. The limiting rod is inserted into the mating hole. A positioning ring groove is provided on the inner wall of the guide hole, and a positioning protrusion matching the positioning ring groove is provided on the outer wall of the positioning rod. The positioning protrusion is engaged in the positioning ring groove.

8. The multi-resistor series load testing device as described in claim 2, characterized in that, The collecting rod and the conducting rod are made of conductive material, and the positioning rod is made of conductive or insulating material.

9. The multi-resistor series load testing device as described in claim 1, characterized in that, The positioning plate is equipped with a heat dissipation pipe, which has a serpentine structure. The heat dissipation pipe has an inlet pipe at its inlet and an outlet pipe at its outlet.

10. The multi-resistor series load testing device as described in claim 1, characterized in that, The positioning plate is evenly provided with multiple positioning slots, and the positioning slots are filled with insulating blocks. The two positioning rods pass through the insulating blocks, and the positioning rods are provided with limit blocks so that the positioning rods cannot be detached from the insulating blocks.

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