A capacitor burn-in fixture that facilitates clamping

By designing a capacitor aging fixture that is easy to clamp, and adopting an adjustable clamping structure and cooling system, the problem of low efficiency in capacitor aging testing in the prior art has been solved. This enables rapid fixing and cooling of multiple sets of capacitors, improving the reliability of testing and product quality.

CN224581564UActive Publication Date: 2026-07-31CHENGDU AVIC HUACE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU AVIC HUACE TECH CO LTD
Filing Date
2025-06-04
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing capacitor aging fixtures only support the testing of a single model or a single capacitor, resulting in low testing efficiency.

Method used

A capacitor aging fixture that is easy to clamp is designed. It adopts an adjustable multi-clamping structure and a cooling system to achieve rapid fixation and rapid cooling of multiple capacitors.

Benefits of technology

It enables rapid fixing of multiple capacitor sets and adaptable fixing of capacitors of different sizes. At the same time, rapid cooling improves the reliability of aging tests and the consistency of product quality, preventing bulging, leakage or explosion.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of capacitor aging testing technology and discloses a capacitor aging fixture that is easy to clamp. It includes a base, a support plate fixedly connected to the top of the base, four sets of placement slots fixedly connected to the top of the support plate, and an adjustable multi-clamping structure above the support plate. The fixture includes a movable plate, a first movable hole, a limiting hole, a lead screw, a handle, limiting rods, a pressure plate, and an anti-slip pad. In use, multiple capacitors are placed in the placement slots, and the handle is manually turned, causing the lead screw to rotate. Two sets of limiting rods are placed between the movable plate and the support plate, allowing the movable plate to move up and down outside the lead screw. The movable plate causes the pressure plate to move up and down. An anti-slip pad is fixedly connected to the bottom of the pressure plate, and the bottom of the anti-slip pad fits tightly against the top of the capacitor, thus achieving rapid clamping of multiple capacitors.
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Description

Technical Field

[0001] This utility model relates to the field of welding furnace carrier technology, specifically a capacitor aging clamp that is easy to clamp. Background Technology

[0002] A capacitor is a passive electronic component that can store and release electrical energy. Its core function is to store charge and perform functions such as filtering, coupling, tuning, and energy buffering in circuits.

[0003] Capacitor aging testing refers to the process of determining whether a capacitor has experienced performance degradation or failure after long-term use or storage through electrical performance testing, environmental stress testing, or life assessment. Testers use fixtures to fix the capacitor for testing. Common capacitor aging fixtures only support the testing of a single model or a single capacitor, resulting in low testing efficiency.

[0004] Now, a capacitor aging fixture that is easy to clamp is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a capacitor aging fixture that is easy to clamp, so as to solve the problem mentioned in the background art that it only supports the testing of a single model or a single capacitor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a capacitor aging clamp that is easy to clamp, including a base, a support plate fixedly connected to the top of the base, four sets of placement slots fixedly connected to the top of the support plate, and an adjustable multi-set clamping structure provided above the support plate.

[0007] The adjustable multi-clamping structure includes a movable plate, which is positioned above the support plate. The movable plate has a first movable hole inside, and two sets of limiting holes are provided on the left and right sides of the first movable hole. A lead screw is movably connected inside the first movable hole, and a handle is fixedly connected to the top of the lead screw. Limiting rods are movably connected inside the two sets of limiting holes. Four sets of pressure plates are provided on the lower side of the movable plate, and anti-slip pads are provided at the bottom of the four sets of pressure plates.

[0008] As a further technical solution of this utility model, the four sets of placement slots are arranged symmetrically, and the bottom ends of the top capacitors of the four sets of placement slots are closely attached.

[0009] As a further technical solution of this utility model, the two sets of limiting holes are arranged symmetrically, and the inner diameter of the limiting holes matches the outer diameter of the limiting rod.

[0010] As a further technical solution of this utility model, the outer diameter of the lead screw matches the inner diameter of the first movable hole, and the movable plate can move up and down on the outside of the lead screw.

[0011] As a further technical solution of this utility model, the movable plate has four sets of second movable holes inside, and four sets of screws are movably connected inside the four sets of second movable holes. Springs are sleeved on the outside of the four sets of screws.

[0012] As a further technical solution of this utility model, the four sets of second movable holes are symmetrically arranged, the outer diameter of the four sets of screws matches the inner diameter of the second movable holes, and the four sets of screws can move up and down inside the second movable holes.

[0013] As a further technical solution of this utility model, a liquid inlet is provided on the left side of the front end of the support plate, a liquid outlet is provided on the right side of the front end of the support plate, and a cooling coil is fixedly connected inside the support plate.

[0014] As a further technical solution of this utility model, the liquid inlet and liquid outlet are arranged symmetrically, and the liquid inlet, liquid outlet and cooling coil are internally connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the easy-to-clamp capacitor aging fixture not only realizes the rapid fixing of multiple sets of capacitors, but also realizes the fixing of capacitors of different sizes in the same batch, and also realizes the rapid cooling of capacitors.

[0016] (1) By setting up a movable plate, a first movable hole, a limiting hole, a screw, a handle, a limiting rod, a pressure plate and an anti-slip pad, when in use, multiple sets of capacitors are placed in the placement slot, and the screw is manually turned. The screw is driven to rotate, and two sets of limiting rods are set between the movable plate and the support plate. The movable plate moves up and down on the outside of the screw, and the movable plate drives the pressure plate to move up and down. The bottom end of the pressure plate is fixedly connected to the anti-slip pad, and the bottom end of the anti-slip pad is tightly attached to the top of the capacitor, thereby realizing the rapid fixing of multiple sets of capacitors.

[0017] (2) By setting a second movable hole, screw and spring, when in use, the anti-slip pad is in close contact with the capacitor, the capacitor pushes the pressure plate to move upward, the pressure plate is located at the bottom end of the screw, the screw moves up and down in the second movable hole, the outside of the screw is sleeved with a spring, the spring is located between the pressure plate and the movable plate, so that the pressure plate has a downward force, the four sets of screws and springs act on the corresponding pressure plates, so that capacitors of different sizes can be fixed in the same batch;

[0018] (3) By setting up an inlet, an outlet and a cooling coil, when in use, coolant is injected into the inlet and discharged from the outlet through the cooling coil, thereby achieving rapid cooling of the support plate. The support plate is fixedly connected to the placement tank, and the top of the placement tank is tightly attached to the bottom of the capacitor, thereby achieving rapid cooling of the capacitor and preventing the temperature from exceeding the material limit. Through scientific cooling treatment, the reliability of aging test and product quality consistency can be significantly improved, and bulging, leakage or even explosion can be prevented. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a top view of the movable plate structure of this utility model;

[0021] Figure 3 This is a top view cross-sectional structural diagram of the support plate of this utility model;

[0022] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of a portion of point A in the middle section;

[0023] Figure 5 For the present utility model Figure 1 Enlarged cross-sectional view of section B in the middle.

[0024] In the diagram: 1. Base; 2. Support plate; 3. Placement slot; 4. Movable plate; 5. First movable hole; 6. Limiting hole; 7. Lead screw; 8. Tightening handle; 9. Limiting rod; 10. Pressure plate; 11. Anti-slip pad; 12. Second movable hole; 13. Screw; 14. Spring; 15. Liquid inlet; 16. Liquid outlet; 17. Cooling coil. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: Please refer to Figure 1-5 A capacitor aging fixture that is easy to clamp includes a base 1, a support plate 2 fixedly connected to the top of the base 1, four sets of placement slots 3 fixedly connected to the top of the support plate 2, and an adjustable multi-set clamping structure provided above the support plate 2.

[0027] Please see Figure 1-5A capacitor aging fixture that is easy to clamp also includes an adjustable multi-clamping structure. The adjustable multi-clamping structure includes a movable plate 4, which is set above the support plate 2. The movable plate 4 has a first movable hole 5 inside, and two sets of limiting holes 6 are opened on the left and right sides of the first movable hole 5. A screw rod 7 is movably connected inside the first movable hole 5, and a handle 8 is fixedly connected to the top of the screw rod 7. Limiting rods 9 are movably connected inside the two sets of limiting holes 6. Four sets of pressure plates 10 are provided on the lower side of the movable plate 4, and anti-slip pads 11 are provided at the bottom of the four sets of pressure plates 10.

[0028] The four sets of placement slots 3 are arranged symmetrically, and the bottom ends of the top capacitors of the four sets of placement slots 3 are tightly attached. The two sets of limiting holes 6 are arranged symmetrically, and the inner diameter of the limiting hole 6 matches the outer diameter of the limiting rod 9. The outer diameter of the lead screw 7 matches the inner diameter of the first movable hole 5. The movable plate 4 can move up and down on the outside of the lead screw 7.

[0029] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, in use, multiple sets of capacitors are placed in the placement slot 3, and the handle 8 is turned manually. The handle 8 drives the lead screw 7 to rotate. Two sets of limiting rods 9 are set between the movable plate 4 and the support plate 2. The movable plate 4 moves up and down on the outside of the lead screw 7. The movable plate 4 drives the pressure plate 10 to move up and down. The bottom end of the pressure plate 10 is fixedly connected to the anti-slip pad 11. The bottom end of the anti-slip pad 11 is tightly attached to the top end of the capacitor, thereby realizing the rapid fixing of multiple sets of capacitors.

[0030] The movable plate 4 has four sets of second movable holes 12 inside, and four sets of screws 13 are movably connected inside the four sets of second movable holes 12. Springs 14 are sleeved on the outside of the four sets of screws 13. The four sets of second movable holes 12 are symmetrically arranged. The outer diameter of the four sets of screws 13 matches the inner diameter of the second movable holes 12. The four sets of screws 13 can move up and down inside the second movable holes 12.

[0031] Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, during use, the anti-slip pad 11 is in close contact with the capacitor, and the capacitor pushes the pressure plate 10 upward. The pressure plate 10 is located at the bottom end of the screw 13, and the screw 13 moves up and down in the second movable hole 12. The outer side of the screw 13 is fitted with a spring 14, which is located between the pressure plate 10 and the movable plate 4, so that the pressure plate 10 has a downward force. The four sets of screws 13 and springs 14 act on the corresponding pressure plates 10, thereby enabling the fixing of capacitors of different sizes in the same batch.

[0032] A liquid inlet 15 is provided on the left side of the front end of the support plate 2, and a liquid outlet 16 is provided on the right side of the front end of the support plate 2. A cooling coil 17 is fixedly connected inside the support plate 2. The liquid inlet 15 and the liquid outlet 16 are arranged symmetrically, and the liquid inlet 15, the liquid outlet 16, and the cooling coil 17 are connected internally.

[0033] Specifically, such as Figure 1 and Figure 3 As shown, during use, coolant is injected into the inlet 15, and the coolant is discharged from the outlet 16 through the cooling coil 17, thereby achieving rapid cooling of the support plate 2. The support plate 2 is fixedly connected to the placement tank 3, and the top of the placement tank 3 is tightly fitted to the bottom of the capacitor, thereby achieving rapid cooling of the capacitor and preventing the temperature from exceeding the material limit. Through scientific cooling treatment, the reliability of aging tests and product quality consistency can be significantly improved, and bulging, leakage, or even explosion can be prevented.

[0034] Working Principle: In use, this invention first places multiple capacitors in the placement slot 3. By manually turning the handle 8, the screw 7 rotates. Two sets of limiting rods 9 are set between the movable plate 4 and the support plate 2. The movable plate 4 moves up and down outside the screw 7, causing the pressure plate 10 to move up and down. The bottom end of the pressure plate 10 is fixedly connected to an anti-slip pad 11, which fits tightly against the top of the capacitor, thus quickly fixing the multiple capacitors. Secondly, with the anti-slip pad 11 tightly against the capacitor, the capacitor pushes the pressure plate 10 upwards. The pressure plate 10 is located at the bottom end of the screw 13, which moves up and down within the second movable hole 12. A spring 1 is sleeved on the outside of the screw 13. 4. Spring 14 is located between pressure plate 10 and movable plate 4, so that pressure plate 10 has a downward force. Four sets of screws 13 and spring 14 act on the corresponding pressure plates 10, so that capacitors of different sizes can be fixed in the same batch. At the same time, by injecting coolant into the liquid inlet 15, the coolant is discharged from the liquid outlet 16 through the cooling coil 17, thereby achieving rapid cooling of support plate 2. Support plate 2 is fixedly connected to placement tank 3, and the top of placement tank 3 is tightly attached to the bottom of capacitor, thereby achieving rapid cooling of capacitor and avoiding the temperature from exceeding the material limit. Through scientific cooling treatment, the reliability of aging test and product quality consistency can be significantly improved, and bulging, leakage or even explosion can be prevented.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A capacitor burn-in fixture for easy clamping comprising a base (1) characterized in that: The top of the base (1) is fixedly connected to a support plate (2), and the top of the support plate (2) is fixedly connected to four sets of placement slots (3). An adjustable clamping structure is provided above the support plate (2). The adjustable multi-clamping structure includes a movable plate (4), which is located above the support plate (2). The movable plate (4) has a first movable hole (5) inside, and two sets of limiting holes (6) are provided on the left and right sides of the first movable hole (5). A lead screw (7) is movably connected inside the first movable hole (5), and a handle (8) is fixedly connected to the top of the lead screw (7). Limiting rods (9) are movably connected inside the two sets of limiting holes (6). Four sets of pressure plates (10) are provided on the lower side of the movable plate (4), and anti-slip pads (11) are provided at the bottom of the four sets of pressure plates (10).

2. The capacitor burn-in fixture of claim 1, wherein: The four sets of placement slots (3) are arranged symmetrically, and the bottom ends of the top capacitors of the four sets of placement slots (3) are closely attached.

3. The capacitor burn-in fixture of claim 1, wherein: The two sets of limiting holes (6) are arranged symmetrically, and the inner diameter of the limiting holes (6) matches the outer diameter of the limiting rod (9).

4. The capacitor burn-in fixture of claim 1, wherein: The outer diameter of the lead screw (7) matches the inner diameter of the first movable hole (5), and the movable plate (4) can move up and down on the outside of the lead screw (7).

5. The capacitor burn-in fixture of claim 1, wherein: The movable plate (4) has four sets of second movable holes (12) inside, and four sets of screws (13) are movably connected inside the four sets of second movable holes (12). Springs (14) are sleeved on the outside of the four sets of screws (13).

6. A capacitor burn-in fixture for easy assembly according to claim 5, wherein: The four sets of second movable holes (12) are arranged symmetrically, and the outer diameter of the four sets of screws (13) matches the inner diameter of the second movable holes (12). The four sets of screws (13) can move up and down inside the second movable holes (12).

7. The capacitor burn-in fixture of claim 1, wherein: The support plate (2) has an inlet (15) on the left side of its front end and an outlet (16) on the right side of its front end. A cooling coil (17) is fixedly connected inside the support plate (2).

8. The capacitor burn-in fixture of claim 7, wherein: The liquid inlet (15) and liquid outlet (16) are arranged symmetrically, and the liquid inlet (15), liquid outlet (16) and cooling coil (17) are internally connected.