SMT capacitor testing device

Abstract

The utility model discloses an SMT capacitor testing device, and relates to the technical field of capacitor testing. An SMT capacitor testing device comprises a mounting frame, a sliding frame and a base, a motor frame is fixedly mounted on the left side of the mounting frame, a forward and reverse rotation motor is arranged on the motor frame, the output end of the forward and reverse rotation motor is fixedly connected with a lead screw, and the lead screw is fixedly connected with the sliding frame. The surface of the lead screw is in threaded connection with a driving sliding table through the lead screw, first sliding rods are fixedly installed at the positions, close to the front end and the rear end, of the left side wall of the interior of the mounting frame, the surface of the sliding frame is movably sleeved with an auxiliary sliding table, and an electric telescopic rod is fixedly installed at the top of the auxiliary sliding table. A connecting rod is fixedly installed at the output end of the electric telescopic rod, a sealing cover is fixedly installed at the bottom of the connecting rod, a high-temperature detection bin is fixedly installed at the position, close to the left side, of the top of the base, and a low-temperature detection bin is fixedly installed at the position, close to the right side, of the top of the base.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor testing, and particularly relates to an SMT capacitor testing device. Background Technique

[0002] A capacitor testing device is a device used to test and evaluate the performance of SMT capacitors. SMT capacitors are a type of electronic component and are widely used in various electronic products and circuits. SMT capacitors are usually smaller, lighter than traditional plug-in capacitors, and are easier to automate production.

[0003] Chinese Utility Model Patent CN217981680U discloses a capacitor testing device, including: a capacitor tray and a testing unit; the capacitor tray includes a tray body, a first tray probe assembly, and a second tray probe assembly, and the first tray probe assembly and the second tray probe assembly are arranged on opposite sides of the tray body; the testing unit includes a charging test mechanism, a leakage test mechanism, and a discharging test mechanism, and the charging test mechanism, the leakage test mechanism, and the discharging test mechanism are arranged in sequence along a preset direction. The charging test mechanism includes a first probe assembly and a second probe assembly spaced from the first probe assembly. The leakage test mechanism includes a third probe assembly and a fourth probe assembly spaced from the third probe assembly. The discharging test mechanism includes a fifth probe assembly and a sixth probe assembly spaced from the fifth probe assembly. The above capacitor testing device can improve the working efficiency of capacitor charging test, discharging test, and leakage test.

[0004] However, most of the existing SMT capacitor testing devices neglect to test SMT capacitors within a wide temperature range. Such testing limitations may result in the performance and stability of SMT capacitors in some special application scenarios not being fully evaluated. Content of the Utility Model

[0005] The utility model provides an SMT capacitor testing device to solve the problems in the background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: An SMT capacitor testing device, including a mounting frame, a sliding frame and a base. A motor frame is fixedly installed on the left side of the mounting frame. There is a motor frame arranged on the mounting frame. A forward and reverse motor is arranged on the motor frame. The output end of the forward and reverse motor is fixedly connected to a lead screw. The surface of the lead screw is threadedly connected with a driving slide through the lead screw thread. On both sides of the inner left wall of the mounting frame near the front and rear ends, first slide rods are fixedly installed. An auxiliary slide is movably sleeved on the surface of the sliding frame. An electric telescopic rod is fixedly installed on the top of the auxiliary slide. The output end of the electric telescopic rod is fixedly connected to a connecting rod. The bottom of the connecting rod is fixedly installed with a sealing cover. A high-temperature detection chamber is fixedly installed on the top of the base near the left side. A low-temperature detection chamber is fixedly installed on the top of the base near the right side.

[0007] Further, the right sides of the two first slide rods penetrate through the left side of the driving slide near the front and rear ends and extend out of the right side of the driving slide and are fixedly connected to the positions on the inner right wall of the mounting frame near the front and rear ends. Limit switches are arranged on both the left and right inner walls of the mounting frame.

[0008] Further, an infrared emitter is arranged at the rear end of the sealing cover. A detection box is fixedly installed at the bottom of the sealing cover. A plurality of capacitor detection sockets are evenly distributed inside the detection box. A control box is fixedly installed on the top of the sealing cover. The height of the control box shall not be higher than that of the connecting rod. A sealing door is arranged on the front of the detection box. The detection box and the sealing door on the detection box are both made of metal with good thermal conductivity.

[0009] Further, infrared receivers are fixedly installed at the positions near the top of the rear ends of the low-temperature detection chamber and the high-temperature detection chamber. Controllers are arranged on both the low-temperature detection chamber and the high-temperature detection chamber.

[0010] Further, the output end of the electric telescopic rod penetrates through the top of the auxiliary slide and extends out of the bottom of the auxiliary slide. The connection part between the output end of the electric telescopic rod and the auxiliary slide is movably sleeved. The top of the electric telescopic rod is fixedly connected to the bottom of the driving slide.

[0011] Further, the left side of the lead screw penetrates through the inner left wall of the mounting frame and is fixedly connected to the output end of the forward and reverse motor. The connection part between the lead screw and the mounting frame is connected through a ball bearing.

[0012] Further, a bearing seat is fixedly installed at the center of the inner right wall of the mounting frame. The right side of the lead screw is movably sleeved on the left side of the bearing seat.

[0013] Furthermore, the top of the sliding frame is fixedly connected to the bottom of the mounting frame near the four corners, and the mounting frame is located above the base.

[0014] Compared with the prior art, the present utility model provides an SMT capacitor testing device, which has the following beneficial effects:

[0015] 1. For this SMT capacitor testing device, by setting the electric telescopic rod, the sealing cover, the detection box, the low-temperature detection chamber, and the high-temperature detection chamber, it can ensure that the SMT capacitor maintains normal electrical performance and working state in different environments, which is crucial for ensuring the wide application of SMT capacitors in various climates and environments; the test results contribute to the improvement of the product in the follow-up and enhance the reliability and stability of the subsequent products.

[0016] 2. For this SMT capacitor testing device, by setting the forward and reverse motor, the lead screw, and the first sliding rod, it can automatically drive the SMT capacitor to be detected to move, and the first sliding rod provides a guiding function to ensure the smoothness and accuracy of the moving process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the connection relationship diagram of the electric telescopic rod and the mounting cover of the present utility model;

[0019] Figure 3 is the structural diagram of the capacitor detection socket of the present utility model.

[0020] In the figure: 1, motor frame; 2, active slide; 3, first sliding rod; 4, lead screw; 5, mounting frame; 6, sliding frame; 7, electric telescopic rod; 8, auxiliary slide; 9, sealing cover; 10, detection box; 11, high-temperature detection chamber; 12, low-temperature detection chamber; 13, base; 14, infrared receiver; 15, capacitor detection socket; 16, connecting rod; 17, control box; 18, forward and reverse motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-3, the utility model discloses an SMT capacitor testing device, which includes a mounting frame 5, a sliding frame 6 and a base 13. A motor frame 1 is fixedly installed on the left side of the mounting frame 5. There is a motor frame 1 on the mounting frame 5, and a forward and reverse motor 18 is arranged on the motor frame 1. The output end of the forward and reverse motor 18 is fixedly connected with a lead screw 4. The surface of the lead screw 4 is threadedly connected with a driving slide 2 through the lead screw 4. At positions near the front and rear ends of the inner left side wall of the mounting frame 5, first slide rods 3 are fixedly installed on both sides. An auxiliary slide 8 is movably sleeved on the surface of the sliding frame 6. An electric telescopic rod 7 is fixedly installed on the top of the auxiliary slide 8. The output end of the electric telescopic rod 7 is fixedly connected with a connecting rod 16. The bottom of the connecting rod 16 is fixedly installed with a sealing cover 9. A high-temperature detection chamber 11 is fixedly installed at a position near the left side of the top of the base 13, and a low-temperature detection chamber 12 is fixedly installed at a position near the right side of the top of the base 13.

[0023] Specifically, the right sides of the two first slide rods 3 penetrate through the positions near the front and rear ends of the left side of the driving slide 2 and extend out of the right side of the driving slide 2 and are fixedly connected with the positions near the front and rear ends of the inner right wall of the mounting frame 5. Limit switches are arranged on both the left and right inner side walls of the mounting frame 5.

[0024] Specifically, an infrared emitter is arranged at the rear end of the sealing cover 9. A detection box 10 is fixedly installed at the bottom of the sealing cover 9. A plurality of capacitor detection sockets 15 are evenly distributed inside the detection box 10. A control box 17 is fixedly installed on the top of the sealing cover 9. The height of the control box 17 shall not be higher than that of the connecting rod 16. A sealing door is arranged on the front of the detection box 10. The detection box 10 and the sealing door on the detection box 10 are both made of metal with good thermal conductivity.

[0025] In this implementation scheme, during operation, the outer surface of the detection box 10 is movably sleeved inside the low-temperature detection chamber 12 and the high-temperature detection chamber 11, and the positions near the periphery of the bottom of the sealing cover 9 are in close contact with the positions near the periphery of the top of the low-temperature detection chamber 12 and the high-temperature detection chamber 11 during operation. The reason why the height of the control box 17 shall not be higher than that of the connecting rod 16 is to avoid the control box 17 from bumping when the output end of the electric telescopic rod 7 retracts.

[0026] Specifically, infrared receivers 14 are fixedly installed at positions near the top of the rear ends of the low-temperature detection chamber 12 and the high-temperature detection chamber 11. Controllers are arranged on both the low-temperature detection chamber 12 and the high-temperature detection chamber 11.

[0027] Specifically, the output end of the electric telescopic rod 7 penetrates through the top of the auxiliary slide 8 and extends out of the bottom of the auxiliary slide 8. The connection part between the output end of the electric telescopic rod 7 and the auxiliary slide 8 is movably sleeved. The top of the electric telescopic rod 7 is fixedly connected with the bottom of the driving slide 2.

[0028] Specifically, the left side of the lead screw 4 penetrates through the inner left side wall of the mounting frame 5 and is fixedly connected to the output end of the forward and reverse motor 18. The connection between the lead screw 4 and the mounting frame 5 is connected through a ball bearing.

[0029] Specifically, a bearing seat is fixedly installed at the center of the inner right side wall of the mounting frame 5, and the right side of the lead screw 4 is movably sleeved on the left side of the bearing seat.

[0030] Specifically, the top of the sliding frame 6 is fixedly connected to the bottom of the mounting frame 5 near the four corners, and the mounting frame 5 is located above the base 13.

[0031] During use, open the sealing door, insert the plug-in end of the SMT capacitor to be tested into the capacitor detection socket 15, close the sealing door, start the forward and reverse motor 18, drive the lead screw 4 to rotate through the output end of the forward and reverse motor 18, thereby driving the active slide 2 along the first slide bar 3, and the auxiliary slide 8 also moves along the sliding frame 6 until the infrared receiver 14 receives the signal emitted by the infrared emitter on the high-temperature detection chamber 11, then the forward and reverse motor 18 stops rotating. The output end of the electric telescopic rod 7 drives the connecting rod 16 to move downward, thereby driving the mounting cover, the detection box 10 and the SMT capacitor to be tested inside the capacitor detection socket 15 to move downward together and extend into the high-temperature detection chamber 11. The bottom of the sealing cover 9 is closely attached to the top of the high-temperature detection chamber 11 near the periphery. The high-temperature detection chamber 11 starts to test the high-temperature resistance, heat resistance and electrical performance of the capacitor under high-temperature environment. After the test is completed, drive the electric telescopic rod 7 again to take out the detection box 10 and perform subsequent data analysis and processing. Then start the forward and reverse motor again. The output end of the forward and reverse motor 18 drives the lead screw 4 to rotate again, thereby driving the active slide 2 to move along the first slide bar 3 until the infrared receiver 14 receives the signal emitted by the infrared emitter on the low-temperature detection chamber 12, then the forward and reverse motor 18 stops rotating again. The output end of the electric telescopic rod 7 drives the connecting rod 16 to move downward again, thereby driving the mounting cover, the detection box 10 and the SMT capacitor to be tested inside the capacitor detection socket 15 to move downward together and extend into the low-temperature detection chamber 12. The bottom of the sealing cover 9 is closely attached to the top of the low-temperature detection chamber 12 near the periphery. The low-temperature detection chamber 12 starts to test the capacitor at low temperature and examine its electrical performance and stability under low-temperature conditions. After the test is completed, drive the electric telescopic rod 7 again to take out the detection box 10 and perform subsequent data analysis and processing. Start the forward and reverse motor 18 again until the active slide 2 touches the adjacent limit switch, the forward and reverse motor 18 rotates in the reverse direction, and drives the electric telescopic and its components to return to their original positions, take out the tested SMT capacitor, and replace it with the next batch of SMT capacitors to be tested.

[0032] In summary, for the SMT capacitor testing device, by setting the electric telescopic rod 7, the sealing cover 9, the detection box 10, the low-temperature detection chamber 12 and the high-temperature detection chamber 11, the SMT capacitor can maintain normal electrical performance and working state in different environments, which is crucial for ensuring the wide application of SMT capacitors in various climates and environments; the test results contribute to the subsequent improvement of the product and improve the reliability and stability of the subsequent product; by setting the forward and reverse motor 18, the lead screw 4 and the first slide bar 3, the SMT capacitor to be detected can be automatically driven to move, and the first slide bar 3 provides a guiding function to ensure the smoothness and accuracy of the moving process.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A SMT capacitor testing device, comprising a mounting frame (5), a sliding frame (6) and a base (13), characterized in that: A motor frame (1) is fixedly mounted on the left side of the mounting frame (5), the motor frame (1) is arranged on the mounting frame (5), a forward and reverse motor (18) is arranged on the motor frame (1), the output end of the forward and reverse motor (18) is fixedly connected with a screw rod (4), the surface of the screw rod (4) is threadedly connected with an active slide (2) through the screw rod (4), a first slide rod (3) is fixedly mounted on the left side wall of the mounting frame (5) near the front and rear ends, an auxiliary slide (8) is movably sleeved on the surface of the slide frame (6), an electric telescopic rod (7) is fixedly mounted on the top of the auxiliary slide (8), a connecting rod (16) is fixedly mounted on the output end of the electric telescopic rod (7), a sealing cover (9) is fixedly mounted on the bottom of the connecting rod (16), a high temperature detection chamber (11) is fixedly mounted on the top of the base (13) near the left side, and a low temperature detection chamber (12) is fixedly mounted on the top of the base (13) near the right side.

2. The SMT capacitor testing device according to claim 1, characterized in that: The right sides of the two first slide bars (3) penetrate the left side of the active slide table (2) near the front and rear ends, extend out of the right side of the active slide table (2), and are fixedly connected to the inner wall of the mounting frame (5) near the front and rear ends. The inner left and right side walls of the mounting frame (5) are both provided with limit switches.

3. The SMT capacitor testing device according to claim 1, characterized in that: An infrared transmitter is arranged at the rear end of the sealing cover (9), a detection box (10) is fixedly installed at the bottom of the sealing cover (9), a plurality of capacitor detection sockets (15) are evenly distributed inside the detection box (10), a control box (17) is fixedly installed at the top of the sealing cover (9), the height of the control box (17) shall not be higher than the connecting rod (16), a sealing door is arranged at the front of the detection box (10), and the detection box (10) and the sealing door on the detection box (10) are both made of metal with good thermal conductivity.

4. The SMT capacitor testing device according to claim 1, characterized in that: An infrared receiver (14) is fixedly installed at a position close to the top of the rear end of the low-temperature detection chamber (12) and the high-temperature detection chamber (11), and a controller is provided on the low-temperature detection chamber (12) and the high-temperature detection chamber (11).

5. The SMT capacitor testing device according to claim 1, characterized in that: The output end of the electric telescopic rod (7) passes through the top of the auxiliary slide (8) and extends out of the bottom of the auxiliary slide (8); the connection between the output end of the electric telescopic rod (7) and the auxiliary slide (8) is a movable sleeve; the top of the electric telescopic rod (7) is fixedly connected to the bottom of the active slide (2).

6. The SMT capacitor testing device according to claim 1, characterized in that: The left side of the screw rod (4) passes through the inner left side wall of the mounting frame (5) and is fixedly connected to the output end of the forward and reverse motor (18); the connection between the screw rod (4) and the mounting frame (5) is connected via a ball bearing.

7. The SMT capacitor testing device according to claim 1, characterized in that: A bearing seat is fixedly mounted at the center of the right inner wall of the mounting frame (5), and the right side of the screw rod (4) is movably sleeved with the left side of the bearing seat.

8. The SMT capacitor testing device according to claim 1, characterized in that: The top of the sliding frame (6) is fixedly connected to the bottom of the mounting frame (5) near the four corners, and the mounting frame (5) is located above the base (13).

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