Oven for testing heat resistance of capacitor
By designing an adjustable tray spacing and worm gear clamping mechanism for capacitor heat resistance testing, the problem that existing equipment cannot adapt to capacitors of different heights has been solved, thus improving the accuracy and efficiency of the test.
Patent Information
- Application Number
- CN202423262744.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing oven for testing the heat resistance of capacitors has a fixed spacing between the partitions, which cannot meet the testing requirements of capacitors of different heights, resulting in low space utilization, poor testing accuracy, and low efficiency.
An adjustable tray spacing capacitor heat resistance test oven was designed. The trays can be freely distributed through a combination of sliding and locking parts, and capacitors of different sizes can be quickly clamped by a worm gear mechanism to ensure their stable position during the test.
It enables flexible testing of capacitors of different heights, improves space utilization and testing accuracy, reduces errors, and enhances production efficiency.
Smart Images
Figure CN223770232U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of capacitance testing technology, and in particular to an oven for testing the heat resistance of capacitors. Background Technology
[0002] To ensure that capacitors can work normally and stably in high-temperature environments, capacitor heat resistance testing has become an important part of evaluating capacitor quality and performance. Capacitor heat resistance testing ovens are specifically designed to simulate the working conditions of capacitors in high-temperature environments. By placing capacitors in the testing oven and setting different temperatures and durations, the capacitance changes, loss tangent, and leakage current parameters of capacitors at high temperatures can be detected. This helps to determine whether capacitors can maintain their performance indicators under specified high-temperature conditions and whether they meet the heat resistance requirements of specific application scenarios.
[0003] With the fixed spacing between the upper and lower partitions inside the existing test oven, it can only test capacitors of a specific height. If they are too tall, they cannot be placed inside; if they are too short, the space utilization is low and the capacitors will wobble, affecting the accuracy of the test. The fixed spacing also limits the ability to test multiple capacitors of different heights at the same time. Capacitors of different specifications can only be tested in batches, which is time-consuming and labor-intensive. Furthermore, it introduces errors due to changes in conditions, increases costs, and reduces efficiency, making it difficult to meet diverse needs and efficient production and R&D. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a capacitor heat resistance testing oven, which aims to improve the problem that the fixed spacing of the partitions in existing testing ovens cannot meet different testing needs.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a capacitor heat resistance testing oven, comprising a shell, a fixed box fixedly connected to the top of the inner wall of the shell, heating tubes fixedly connected to the bottom and rear side of the shell, limit strips fixedly connected to the left and right sides of the inner wall of the fixed box, multiple trays arranged between the two limit strips, first sliding grooves opened on the left and right sides of the inner walls of the multiple trays, locking members slidably connected in the multiple first sliding grooves, sliding members arranged between two adjacent locking members, two second sliding grooves opened on the top of the multiple sliding members, the multiple locking members sliding in adjacent second sliding grooves, two tension springs fixedly connected to the front side of the sliding members, the front ends of the multiple tension springs fixedly connected to adjacent trays, and a fixing component arranged on the top of the multiple trays, the fixing component being used to fix the capacitor.
[0006] Preferably, the fixing component includes a clamping box, which is fixedly connected to the tray. A worm gear is rotatably connected to the bottom of the inner wall of the clamping box, and a worm is meshed with the right side of the worm gear. A rotating disk is fixedly connected to the top of the worm gear, and four connecting rods are rotatably connected to the top of the rotating disk. Clamping components are rotatably connected to opposite sides of the four connecting rods, and the four clamping components are slidably connected to the clamping box.
[0007] Preferably, the front end of the worm gear extends through and to the front side of the clamping box, the worm gear is rotatably connected to the clamping box, and a knob is fixedly connected to the front end of the worm gear.
[0008] Preferably, two hinges are fixedly connected to the front side of the outer casing, and a cover plate is fixedly connected between the two hinges.
[0009] Preferably, the fixed box has multiple ventilation openings at the bottom and on the left and right sides, and the surfaces of the multiple pallets have multiple ventilation holes.
[0010] Preferably, multiple fans are fixedly connected to both the left and right sides of the outer casing.
[0011] Preferably, each of the plurality of sliding members is fixedly connected to a pressing rod on its front side, the front sides of the plurality of pressing rods extend through and to the front side of the tray, and the plurality of pressing rods are slidably connected to the adjacent trays.
[0012] Preferably, two slide rails are fixedly connected to the left and right sides of the inner wall of the fixed box, and the multiple trays slide between the four slide rails.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the tray can be moved upward by directly lifting the tray upward. Pressing the pressing rod pushes the sliding member, thereby stretching the tension spring. The two locking members slide in the second slide groove, thereby causing the locking members to disengage from the limiting strip. At this time, the tray can be moved downward, realizing the free distribution of the trays in the test oven, thereby meeting different test requirements.
[0015] 2. In this utility model, rotating the knob drives the worm gear to rotate, which in turn drives the worm wheel and the rotating disk to rotate, causing the connecting rod to pull the clamping part to slide on the clamping box, thereby quickly clamping and fixing the capacitor. This allows for the fixing of capacitors of different sizes, ensuring that the capacitors remain in a stable position during testing and will not shift due to vibration or airflow, thus guaranteeing the accuracy and reliability of the test results. Attached Figure Description
[0016] Figure 1 This is a main body diagram of the capacitor heat resistance testing oven proposed in this utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the right side of the outer shell of the capacitor heat resistance testing oven proposed in this utility model.
[0018] Figure 3 This is a schematic cross-sectional view of the top of the tray of the capacitor heat resistance testing oven proposed in this utility model.
[0019] Figure 4 This is a schematic diagram of the clamping box of the capacitor heat resistance testing oven proposed in this utility model.
[0020] Figure 5 This is a cross-sectional schematic diagram of the clamping box of the capacitor heat resistance testing oven proposed in this utility model.
[0021] Legend:
[0022] 1. Outer shell; 2. Fixing box; 3. Cover plate; 4. Hinge; 5. Ventilation vent; 6. Support plate; 7. Pressing rod; 8. Fan; 9. Heating element; 10. Slide rail; 11. Limiting strip; 12. Ventilation hole; 13. First slide groove; 14. Locking element; 15. Sliding element; 16. Second slide groove; 17. Clamping element; 18. Tension spring; 19. Clamping box; 20. Knob; 21. Connecting rod; 22. Worm gear; 23. Worm; 24. Rotating disk. Detailed Implementation
[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] Reference Figures 1-3 This utility model provides an embodiment of a capacitor heat resistance testing oven, including a shell 1, a fixed box 2 fixedly connected to the top of the inner wall of the shell 1, heating tubes 9 fixedly connected to the bottom and rear side of the shell 1, limit strips 11 fixedly connected to the left and right sides of the inner wall of the fixed box 2, multiple trays 6 arranged between the two limit strips 11, first sliding grooves 13 opened on the left and right sides of the inner wall of the multiple trays 6, locking members 14 slidably connected in the multiple first sliding grooves 13, sliding members 15 arranged between two adjacent locking members 14, two second sliding grooves 16 opened on the top of the multiple sliding members 15, the multiple locking members 14 sliding in the adjacent second sliding grooves 16, two tension springs 18 fixedly connected to the front side of the sliding members 15, the front end of the multiple tension springs 18 fixedly connected to the adjacent trays 6, and a fixing component arranged on the top of the multiple trays 6 for fixing capacitors.
[0025] Specifically, the airflow inside the outer casing 1 is heated by the heating tube 9, thereby enabling the heating test of the capacitor inside the fixed box 2. Since the surface of the limiting strip 11 has multiple triangular grooves, the tray 6 is directly lifted upwards. At this time, the locking member 14 is squeezed and can move freely upwards. Pressing the pressing rod 7 pushes the sliding member 15, thereby stretching the tension spring 18. At this time, the two locking members 14 slide in the first sliding groove 13, thereby causing the locking member 14 to disengage from the limiting strip 11. At this time, the tray 6 can be moved downwards, realizing the free distribution of the tray 6 inside the test oven.
[0026] Reference Figure 4 and Figure 5 The fixing component includes a clamping box 19, which is fixedly connected to the tray 6. A worm gear 22 is rotatably connected to the bottom of the inner wall of the clamping box 19. A worm 23 is meshed with the right side of the worm gear 22. A rotating disk 24 is fixedly connected to the top of the worm gear 22. Four connecting rods 21 are rotatably connected to the top of the rotating disk 24. Clamping parts 17 are rotatably connected to the opposite sides of the four connecting rods 21. All four clamping parts 17 are slidably connected to the clamping box 19.
[0027] Specifically, by rotating the knob 20, the worm gear 23 is rotated, which in turn drives the worm wheel 22 and the rotating disk 24 to rotate, and at the same time drives the connecting rod 21 to rotate. The connecting rod 21 pulls the clamping piece 17 to slide on the clamping box 19, thereby achieving the effect of quickly clamping and fixing the capacitor, thus achieving the effect of fixing capacitors of different sizes.
[0028] Reference Figure 5 The front end of the worm gear 23 passes through and extends to the front side of the clamping box 19. The worm gear 23 is rotatably connected to the clamping box 19, and a knob 20 is fixedly connected to the front end of the worm gear 23.
[0029] Specifically, by rotating the knob 20, the worm gear 23 is rotated, thereby driving the top clamping member 17 to clamp.
[0030] Reference Figure 1 Two hinges 4 are fixedly connected to the front side of the outer shell 1, and a cover plate 3 is fixedly connected between the two hinges 4.
[0031] Specifically, the cover plate 3 can be rotated via the hinge 4, thereby sealing the outer shell 1 and heating the interior.
[0032] Reference Figure 1 and Figure 2 The bottom and left and right sides of the fixed box 2 are provided with multiple ventilation openings 5, and the surface of the multiple trays 6 is provided with multiple ventilation holes 12.
[0033] Specifically, multiple ventilation openings 5 allow hot air from inside the outer casing 1 to enter the fixed box 2, and multiple ventilation holes 12 ensure uniform distribution of hot air between the upper and lower layers, thereby guaranteeing the accuracy of the test.
[0034] Reference Figure 1 Multiple fans 8 are fixedly connected to both the left and right sides of the outer casing 1.
[0035] Specifically, the fan 8 can quickly dissipate the heat generated by the heating element to every corner inside the housing 1, making the temperature distribution inside the housing 1 more uniform and ensuring that the capacitor is heated evenly, thereby improving the accuracy and reliability of the test.
[0036] Reference Figure 3 Each of the multiple sliding parts 15 has a pressing rod 7 fixedly connected to its front side. The pressing rods 7 extend through and to the front side of the tray 6. The pressing rods 7 are slidably connected to the tray 6 adjacent to them.
[0037] Specifically, by pressing the pressing rod 7 and sliding it within the tray 6, the sliding member 15 on the rear side is moved, thereby moving the tray 6.
[0038] Reference Figure 1 The inner walls of the fixed box 2 are fixedly connected to two slide rails 10 on both the left and right sides, and multiple trays 6 slide between the four slide rails 10.
[0039] Specifically, the slide rails 10 on both sides are used to maintain balance when the pallet 6 moves up and down, and to prevent the pallet 6 from tilting.
[0040] Working principle: When in use, place the capacitor on the clamping box 19, turn the knob 20 to drive the worm gear 23 to rotate, thereby driving the worm wheel 22 and the rotating disk 24 to rotate, and at the same time driving the connecting rod 21 to rotate. The connecting rod 21 pulls the clamping part 17 to slide on the clamping box 19, realizing quick clamping and fixing of the capacitor. Press the pressing rod 7 to push the sliding part 15, thereby stretching the tension spring 18. At this time, the two locking parts 14 slide in the first sliding groove 13, thereby making the locking parts 14 disengage from the limit strip 11. At this time, the tray 6 can be moved up and down freely. After fixing the tray 6 in the appropriate position, close the cover 3. The fan 8 can quickly blow the heat generated by the heating tube 9 to all corners inside the shell 1, making the temperature distribution inside the shell 1 more uniform. The heat enters the fixing box 2 through the vent 5 to heat and test the capacitor.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. Capacitance heat resistance test oven comprising a housing (1), characterized in that: The outer shell (1) top fixed connection has fixed box (2), the outer shell (1) bottom and rear side are fixedly connected with heating pipe (9), the fixed box (2) inner wall left and right sides are fixedly connected with limiting strip (11), a plurality of supporting plates (6) are arranged between the two limiting strips (11), a plurality of the first sliding grooves (13) are formed in the left and right sides of the inner wall of the supporting plate (6), the locking pieces (14) are slidably connected in the first sliding grooves (13), the sliding pieces (15) are arranged between the two locking pieces (14) adjacent to each other, two second sliding grooves (16) are formed in the top of the sliding piece (15), the locking pieces (14) are slidably arranged in the adjacent second sliding grooves (16), the two pull springs (18) are fixedly connected to the front side of the sliding piece (15), the front ends of the plurality of pull springs (18) are fixedly connected between the adjacent supporting plates (6), and the plurality of supporting plates (6) are provided with fixing assemblies on the top, and the fixing assemblies are used for fixing capacitors.
2. The capacitive heat resistance test oven of claim 1, wherein: The fixing assembly comprises a clamping box (19), the clamping box (19) is fixedly connected between the supporting plate (6), the worm gear (22) is rotatably connected to the inner wall bottom of the clamping box (19), the worm gear (22) is rotatably connected with the worm (23) on the right side, the rotating disc (24) is fixedly connected to the top of the worm gear (22), the four connecting rods (21) are rotatably connected to the top of the rotating disc (24), the clamping pieces (17) are rotatably connected to the opposite sides of the four connecting rods (21), and the four clamping pieces (17) are slidably connected between the clamping box (19).
3. The capacitive heat resistance test oven of claim 2, wherein: The front end of the worm (23) extends to the front side of the clamping box (19), and the worm (23) is rotatably connected with the clamping box (19).
4. The capacitive heat resistance test oven of claim 1, wherein: The front side of the outer shell (1) is fixedly connected with two hinges (4), and the cover plate (3) is fixedly connected between the two hinges (4).
5. The capacitive heat resistance test oven of claim 1, wherein: The bottom and the left and right sides of the fixed box (2) are provided with a plurality of ventilation openings (5), and a plurality of ventilation holes (12) are formed in the surface of the plurality of supporting plates (6).
6. The capacitive heat resistance test oven of claim 1, wherein: The left and right sides of the outer shell (1) are fixedly connected with a plurality of fans (8).
7. The capacitive heat resistance test oven of claim 2, wherein: The front side of the plurality of sliding pieces (15) is fixedly connected with a pressing rod (7), the front side of the plurality of pressing rods (7) extends to the front side of the supporting plate (6), and the plurality of pressing rods (7) are slidably connected between the adjacent supporting plates (6).
8. The capacitive heat resistance test oven of claim 1, wherein: The inner wall left and right sides of the fixed box (2) are fixedly connected with two slide rails (10), and the plurality of supporting plates (6) are slidably arranged between the four slide rails (10).