Load life test equipment

Abstract

The utility model relates to the technical field of load test equipment, and discloses load life test equipment, which comprises a circuit board, and a plurality of groups of resistors are arranged on the outer surface of the circuit board. By arranging the screw rod, the rotating rod, the fixing frame and the power line, as the screw rod is in threaded sleeve connection with the moving ring, the screw rod is driven to move forwards when the screw rod rotates, and then the screw rod drives the rotating rod to rotate by taking the hinged part of the rotating rod and the conductive block as the axis through the moving rod; when the rotating rod is attached to the metal ring, the rotating rod is matched with the metal ring to lock the conductive block, so that the power line can be quickly connected with the circuit board, and due to the design of the first direct-current power supply and the second direct-current power supply, full-power on-off current testing can be output to the circuit board; and the first direct-current power supply and the second direct-current power supply can be simultaneously plugged with multiple groups of power lines, and the fixing frame can simultaneously fix multiple groups of circuit boards, so that the load test can be simultaneously performed on the multiple groups of circuit boards.

Description

TECHNICAL FIELD

[0001] The utility model relates to load test equipment technical field, more specifically, the utility model relates to a load life test equipment. BACKGROUND

[0002] The name of circuit board has: ceramic circuit board, aluminum substrate, high frequency board etc., and the circuit board makes circuit miniaturization, and the circuit board plays an important role to the batch production and optimization of fixed circuit and electrical appliance layout.

[0003] When the operator is in the same batch of resistor production and processing is completed, often needs to carry out load test, so as to calculate the service life of the resistor, at this time will use load test equipment, the existing load test equipment often all have the function of temperature and humidity, in order to test the product under different temperature conditions, full power on-off current test, to study the product accelerated life test, but most of the existing load life test equipment can only test a group of resistors at the same time, due to the load life test cycle is often longer, thus causing the existing load test equipment production capacity is relatively low, and due to the existing load test equipment often only rely on welding or test crocodile clamp head and resistor connection, due to the limitation of test crocodile clamp head connection, leading to the resistor in the process of testing is easy to fall off from the test crocodile clamp head, this will affect the subsequent test results, the welding method can make the circuit board and equipment stable connection, but the operation is too cumbersome, makes the test efficiency is not high, therefore needs its improvement. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a load life test equipment, has the advantage that makes the power cord and the circuit board quick connection.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a load life test equipment, including:

[0006] Circuit board, the outer surface of the circuit board is provided with a plurality of groups of resistors, the inside of the circuit board is fixedly sleeved with a metal ring, the inside of the metal ring is movably sleeved with a conductive block;

[0007] Output mechanism, the output mechanism is arranged on the outer surface of the conductive block;

[0008] Connecting mechanism, the connecting mechanism is arranged in the inside of the conductive block;

[0009] The connecting mechanism comprises a rotating block, the outer surface of the rotating block is movably sleeved with the inner sleeve of the conductive block, the left end of the rotating block is fixedly installed with a screw rod, the right end of the screw rod is movably connected with the back surface of the conductive block, the outer surface of the screw rod is threadedly sleeved with a moving ring, the outer surface of the moving ring is hingedly connected with a movable rod, the other end of the movable rod is hingedly connected with a rotating rod, and the other end of the rotating rod is hingedly connected with the inner part of the outer surface of the conductive block.

[0010] As a preferred technical scheme of the utility model, the output mechanism comprises:

[0011] The inner part of the metal plate is movably sleeved with the outer surface of the conductive block.

[0012] The number of the power lines is two, one end of the two power lines is fixedly connected with the outer surface of the metal plate, the other end of the two power lines is respectively connected with a first direct current power supply and a second direct current power supply, and the bottom end of the first direct current power supply and the second direct current power supply is movably connected with a fixing box.

[0013] As a preferred technical scheme of the utility model, the front end of the rotating block is fixedly installed with a twisting block, and the left side of the twisting block is movably connected with the outer surface of the metal ring.

[0014] As a preferred technical scheme of the utility model, the outer surface of the circuit board is movably connected with a fixing frame, a clamping groove is formed in the fixing frame, and the inner part of the clamping groove is movably connected with the outer surface of the circuit board.

[0015] As a preferred technical scheme of the utility model, the bottom end of the fixing frame is movably connected with a constant temperature and humidity test box, the outer surface of the constant temperature and humidity test box is hingedly connected with a box door, and the inner part of the left side of the constant temperature and humidity test box is movably sleeved with the outer surface of the power line.

[0016] As a preferred technical scheme of the utility model, the inner part of the constant temperature and humidity test box is fixedly sleeved with thermocouple temperature sensing wires, the number of the thermocouple temperature sensing wires is two, and the other end of the two thermocouple temperature sensing wires is respectively welded to the outer surface of the circuit board and the resistor.

[0017] Compared with the prior art, the utility model has the beneficial effects as follows:

[0018] 1. This utility model, by setting up a screw, a rotating rod, a fixing frame, and a power cord, allows the screw to move forward when it rotates, as the screw is screwed into a moving ring. Then, the screw drives the rotating rod to rotate around the hinge point with the conductive block as its axis via the movable rod. When the rotating rod is in contact with the metal ring, it locks the conductive block, thus enabling the power cord to be quickly connected to the circuit board. Due to the design of the first and second DC power supplies, it can output full-power on / off current testing to the circuit board. Furthermore, the first and second DC power supplies can simultaneously connect to multiple power cords, and the fixing frame can simultaneously fix multiple circuit boards, thus enabling simultaneous load testing of multiple circuit boards.

[0019] 2. This utility model, by setting up a constant temperature and humidity test chamber and thermocouple temperature sensing wires, allows operators to easily control the experimental temperature and humidity due to the design of the constant temperature and humidity test chamber, so as to provide a constant temperature and humidity test environment for the circuit board. Due to the design of the thermocouple temperature sensing wires, it is easy for operators to monitor the temperature of the product in real time and adjust the experimental temperature in a timely manner. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the fixing frame of this utility model;

[0022] Figure 3 This is a schematic diagram of the circuit board structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the rear view structure of the circuit board of this utility model;

[0024] Figure 5 This is a cross-sectional view of the screw of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the motion ring of this utility model;

[0026] Figure 7 for Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0027] In the diagram: 1. Circuit board; 2. Metal ring; 3. Conductive block; 4. Rotating block; 5. Tightening block; 6. Screw; 7. Moving ring; 8. Movable rod; 9. Rotating rod; 10. Metal plate; 11. Power cord; 12. First DC power supply; 13. Second DC power supply; 14. Fixing box; 15. Fixing frame; 16. Slot; 17. Resistor; 18. Thermocouple sensing wire; 19. Constant temperature and humidity test chamber; 20. Chamber door. Detailed Implementation

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] As shown in Figures 1 to 7 The utility model provides a load life test equipment, including:

[0030] Circuit board 1, the outer surface of circuit board 1 is provided with several groups of resistors 17, the inside of circuit board 1 is fixedly sleeved with metal ring 2, the inside of metal ring 2 is movably sleeved with conductive block 3;

[0031] Output mechanism, output mechanism is set up in the outer surface of conductive block 3;

[0032] Connecting mechanism, connecting mechanism is set up in the inside of conductive block 3;

[0033] Wherein, connecting mechanism includes rotating block 4, the outer surface of rotating block 4 is movably sleeved with the inside of conductive block 3, the left end of rotating block 4 is fixedly installed with screw rod 6, the right end of screw rod 6 is movably connected with the back of conductive block 3, the outer surface of screw rod 6 is threadedly sleeved with movement ring 7, the outer surface of movement ring 7 is hinged with movable rod 8, the other end of movable rod 8 is hinged with rotating rod 9, the other end of rotating rod 9 is hinged with the inside of the outer surface of conductive block 3.

[0034] Because screw rod 6 is threadedly sleeved with movement ring 7, when rotating block 4 drives screw rod 6 to rotate, screw rod 6 will drive movement ring 7 to move forward at this time, and at the same time, movement ring 7 will drive rotating rod 9 to rotate with the hinged place of conductive block 3 as the axis, when rotating rod 9 is attached to metal ring 2, rotating rod 9 will cooperate with metal ring 2 to lock the movement of conductive block 3 as a whole.

[0035] Wherein, output mechanism includes:

[0036] Metal plate 10, the inside of metal plate 10 is movably sleeved with the outer surface of conductive block 3;

[0037] Power line 11, the number of power line 11 is two, one end of two power lines 11 is fixedly connected with the outer surface of metal plate 10, the other end of two power lines 11 is respectively connected with first direct current power supply 12 and second direct current power supply 13, the bottom end of first direct current power supply 12 and second direct current power supply 13 is movably connected with fixed box 14.

[0038] When the first DC power supply 12 and the second DC power supply 13 are running, the two metal plates 10 will be powered through the two power lines 11, and the two metal plates 10 will be powered through the two conductive blocks 3 and the two metal rings 2 to the circuit board 1 as a whole for load testing, and since the first DC power supply 12 and the second DC power supply 13 can simultaneously plug in multiple power lines 11, multiple circuit boards 1 can be simultaneously subjected to load testing to improve productivity.

[0039] The front end of the rotating block 4 is fixedly provided with a twisting block 5, and the left side of the twisting block 5 is movably connected with the outer surface of the metal ring 2.

[0040] Due to the design of the twisting block 5, the operator can rotate the rotating block 4 by twisting the twisting block 5.

[0041] The outer surface of the circuit board 1 is movably connected with a fixing frame 15, and the fixing frame 15 is provided with a clamping groove 16 movably connected with the outer surface of the circuit board 1.

[0042] Due to the design of the fixing frame 15 and the clamping groove 16, the circuit board 1 can be fixed as a whole, and multiple circuit boards 1 can be fixed at the same time.

[0043] The bottom end of the fixing frame 15 is movably connected with a constant temperature and humidity test box 19, the outer surface of the constant temperature and humidity test box 19 is hingedly connected with a box door 20, and the left side of the constant temperature and humidity test box 19 is movably sleeved with the outer surface of the power line 11.

[0044] Due to the design of the constant temperature and humidity test box 19, the circuit board 1 can be provided with a constant temperature and humidity test environment, and due to the design of the box door 20, the operator can easily open and close the constant temperature and humidity test box 19.

[0045] The inside of the constant temperature and humidity test box 19 is fixedly sleeved with a thermocouple temperature sensing wire 18, the number of the thermocouple temperature sensing wire 18 is two, and the other end of the two thermocouple temperature sensing wires 18 is respectively welded to the outer surface of the circuit board 1 and the resistor 17.

[0046] Due to the design of the thermocouple temperature sensing wire 18, the temperature of the circuit board 1 and the resistor 17 can be continuously monitored, and the operator can easily monitor in real time.

[0047] The working principle and use process of the utility model:

[0048] First, the operator first checks the (1) overall appearance, confirm that the appearance of no aging or damage to the circuit board 1 as a whole along the card slot 16 placed in the fixed frame 15 inside, this fixed frame 15 and card slot 16 will be fixed to the circuit board 1, followed by the operator will put the conductive block 3 into the metal ring 2 inside, followed by the operator on the twist block 5 twist, this twist block 5 will be driven by rotating block 4 screw rod 6 rotation, because the outer surface of the screw rod 6 and the internal thread of the movement ring 7 sleeve, when the screw rod 6 rotation will drive the movement ring 7 along the outer surface of the screw rod 6 forward movement, this movable rod 8 will be driven by the movement ring 7 movement, followed by the other end of the movable rod 8 will be on the rear end of the rotating rod 9 extrusion, so that the rotating rod 9 with the hinge of the conductive block 3 as the axis of rotation, when the rotating rod 9 rotates ninety degrees, the outer surface of the rotating rod 9 will be with the back of the metal ring 2, this rotating rod 9 will be with the metal ring 2 cooperation on the whole movement of the conductive block 3 lock, so as to realize the function of the power cord 11 and the circuit board 1 fast connection, followed by the operator at the same time start the first DC power supply 12 and the second DC power supply 13, this first DC power supply 12 and the second DC power supply 13 will be through the power cord 11 and the metal plate 10 to the conductive block 3 power, this conductive block 3 will be through the metal ring 2 on the whole circuit board 1 power supply, in order to carry on the load test of the whole circuit board 1, because the first DC power supply 12 and the second DC power supply 13 can be inserted into multiple power cord 11, and because the fixed frame 15 and the card slot 16 can be fixed to multiple circuit board 1 at the same time, so as to realize the function of being able to simultaneously carry on the load test of multiple circuit board 1, because the power cord 11 is provided with two lines inside, and then can test the current and voltage sampling, so as to facilitate the operator to calculate the resistance of the circuit board 1 when running.

[0049] Subsequently, the operator starts the constant temperature and humidity test box 19, this constant temperature and humidity test box 19 will provide constant temperature and humidity test environment for the whole circuit board 1, and because of the design of the constant temperature and humidity test box 19, the operator can control the experimental temperature and humidity, when the load test is carried out for a period of time, for example, forty-eight hours, the operator opens the constant temperature and humidity test box 19 by pulling the door 20, the operator takes out the whole circuit board 1 to check the whole circuit board 1, so as to prevent the aging of the circuit board 1 in the test process, because of the design of the thermocouple temperature sensing wire 18, the temperature of the circuit board 1 and the temperature of the resistor 17 can be detected continuously, so that the operator can monitor the temperature of the product in real time, and adjust the experimental temperature in time.

[0050] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0051] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A load life test apparatus characterized by comprising: Include: The circuit board (1), the outer surface of the circuit board (1) is provided with a plurality of groups of resistors (17), the inner part of the circuit board (1) is sleeved with a metal ring (2), the inner part of the metal ring (2) is movably sleeved with a conductive block (3); The output mechanism is arranged on the outer surface of the conductive block (3); The connecting mechanism is arranged in the inner part of the conductive block (3); Wherein, the connecting mechanism includes a rotating block (4), the outer surface of the rotating block (4) is movably sleeved with the inner part of the conductive block (3), the left end of the rotating block (4) is fixedly installed with a screw rod (6), the right end of the screw rod (6) is movably connected with the back surface of the conductive block (3), the outer surface of the screw rod (6) is threadedly sleeved with a moving ring (7), the outer surface of the moving ring (7) is hinged with a movable rod (8), the other end of the movable rod (8) is hinged with a rotating rod (9), the other end of the rotating rod (9) is hinged with the inner part of the outer surface of the conductive block (3).

2. A load life test apparatus according to claim 1, characterized by: The output mechanism includes: The inner part of the metal plate (10) is movably sleeved with the outer surface of the conductive block (3); The power line (11) is two in number, one end of the two power lines (11) is fixedly connected with the outer surface of the metal plate (10), the other end of the two power lines (11) is respectively connected with a first direct current power supply (12) and a second direct current power supply (13), the bottom end of the first direct current power supply (12) and the second direct current power supply (13) is movably connected with a fixed box (14).

3. A load life test apparatus according to claim 1, wherein: The front end of the rotating block (4) is fixedly installed with a twisting block (5), the left side of the twisting block (5) is movably connected with the outer surface of the metal ring (2).

4. A load life test apparatus according to claim 3, wherein: The outer surface of the circuit board (1) is movably connected with a fixed frame (15), the fixed frame (15) is provided with a clamping groove (16), the inner part of the clamping groove (16) is movably connected with the outer surface of the circuit board (1).

5. A load life test apparatus according to claim 4, wherein: The bottom end of the fixed frame (15) is movably connected with a constant temperature and humidity test box (19), the outer surface of the constant temperature and humidity test box (19) is hinged with a box door (20), the inner part of the left side of the constant temperature and humidity test box (19) is movably sleeved with the outer surface of the power line (11).

6. A load life test apparatus according to claim 5, wherein: The inner part of the constant temperature and humidity test box (19) is fixedly sleeved with a thermocouple temperature sensing wire (18), the number of the thermocouple temperature sensing wire (18) is two, the other end of the two thermocouple temperature sensing wires (18) is respectively welded on the outer surface of the circuit board (1) and the resistor (17).

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