Lead anti-loosening structure of thin film capacitor

Abstract

The utility model discloses a film capacitor lead anti-loosening structure, which comprises two symmetrical leads fixedly arranged at the top of a film capacitor, the surfaces of the two leads are provided with thread bushings, the bottoms of the surfaces of the thread bushings are fixedly connected with mounting sleeves, the mounting sleeves are attached to the top of the film capacitor, and the mounting sleeves are fixedly connected with the film capacitor. The bottom of the surface of the installation sleeve is fixedly connected with a lower bottom ring, the lower bottom ring is attached to the top of the thin film capacitor, the top of the installation sleeve is provided with a connecting piece, the top of the connecting piece is fixedly connected with lower clamping teeth, the upper portion of the surface of the threaded sleeve is in threaded connection with a fastening piece, and the bottom of the fastening piece is provided with upper clamping teeth. According to the utility model, the bottom of the threaded sleeve is continuously fixed through the mounting sleeve and the lower bottom ring, and then the lower clamping teeth, the upper clamping teeth and the fasteners are matched for use, so that the mounting sleeve can be stably mounted on the surface of the lead, and the welding spots of the film capacitor and the lead cannot be loosened.

Description

Technical Field

[0001] This utility model belongs to the field of thin film capacitor technology, and in particular relates to a thin film capacitor lead anti-loosening structure. Background Technology

[0002] Film capacitors are capacitors made by winding or stacking metal foil or metallized film as electrodes and organic plastic film as dielectric.

[0003] During the use of film capacitors, the leads will frequently vibrate, and loosening of the leads will occur from time to time, affecting the transmission of current. When loose leads are subjected to external vibration and impact, they are prone to displacement, deformation or breakage. Therefore, we need to design a lead-locking structure for film capacitors, using a snap-fit ​​and threaded structure to ensure that the lead and circuit connection always maintain a low resistance state, stably transmit current, avoid increased contact resistance due to loosening, prevent lead displacement, deformation or breakage, prevent loose leads from pulling and damaging the internal structure of the capacitor, and ensure the overall structural integrity of the capacitor. Utility Model Content

[0004] The purpose of this invention is to provide a lead wire anti-loosening structure for a thin-film capacitor, which has the advantages of stable current transmission, avoiding increased contact resistance due to loosening, preventing lead wire displacement, deformation or breakage, preventing damage to the internal structure of the capacitor due to loosening of the lead wire, and ensuring the overall structural integrity of the capacitor, thereby solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A lead wire anti-loosening structure for a thin film capacitor includes two symmetrical leads fixedly installed on the top of the thin film capacitor. Each lead has a threaded sleeve on its surface. A mounting sleeve is fixedly connected to the bottom of the threaded sleeve surface, and the mounting sleeve fits against the top of the thin film capacitor. A lower bottom ring is fixedly connected to the bottom of the mounting sleeve surface, and the lower bottom ring fits against the top of the thin film capacitor. A connector is provided on the top of the mounting sleeve, and a lower locking tooth is fixedly connected to the top of the connector. A fastener is threadedly connected to the upper surface of the threaded sleeve, and an upper locking tooth is provided at the bottom of the fastener, with the lower locking tooth engaging with the upper locking tooth.

[0006] Preferably, both leads are fitted with rubber sleeves, and the threaded sleeve is fitted onto the surface of the rubber sleeves.

[0007] Preferably, a spring washer is attached to the bottom of the connector, and the bottom of the spring washer is pressed against the top of the bottom ring.

[0008] Preferably, the bottom of the fastener is tightly fitted with a connecting ring, and the connecting ring is fixedly connected to the upper retaining tooth.

[0009] Preferably, a plurality of Z-shaped blocks are fixedly mounted on the surface of the mounting sleeve and the lower bottom ring, and the bottom of the plurality of Z-shaped blocks is fixedly mounted to the top of the film capacitor.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model uses the mounting sleeve and the lower bottom ring to further fix the bottom of the threaded sleeve. Then, through the cooperation of the lower locking teeth, the upper locking teeth and the fasteners, the mounting sleeve is installed more stably on the surface of the lead wire. This prevents the solder joints of the film capacitor and the lead wire from loosening, thereby achieving stable current transmission, avoiding increased contact resistance due to loosening, preventing lead wire displacement, deformation or breakage, preventing the lead wire from loosening and pulling and damaging the internal structure of the capacitor, and ensuring the overall structural integrity of the capacitor.

[0012] 2. This utility model uses a rubber sleeve, whose elastic deformation capability can buffer external vibration. The rubber sleeve is elastic and can tightly wrap the lead wire through an interference fit, filling the gap between the lead wire and the threaded sleeve, and directly preventing the lead wire from loosening through friction.

[0013] 3. By setting up Z-shaped blocks, the Z-shaped blocks are evenly distributed circumferentially. The bottom surface of the Z-shaped blocks can form a contact constraint with the top of the film capacitor, which restricts the radial sway of the leads, evenly distributes the load, and improves the stability of the connection between the mounting sleeve, the lower bottom ring and the top of the film capacitor. Attached Figure Description

[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0015] Figure 1 This is a front view schematic diagram of one embodiment of the present utility model;

[0016] Figure 2 This is a side view of one embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the disassembly and assembly of a lead wire anti-loosening structure according to an embodiment of the present invention;

[0018] Figure 4 This is a three-dimensional schematic diagram of the bottom ring and threaded sleeve according to an embodiment of the present invention.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Film capacitor; 2. Lead wire; 3. Rubber sleeve; 4. Threaded sleeve; 5. Mounting sleeve; 6. Lower bottom ring; 7. Spring washer; 8. Connector; 9. Lower retaining tooth; 10. Fastener; 11. Connecting ring; 12. Upper retaining tooth; 13. Z-block. Detailed Implementation

[0021] In the following description, embodiments of the anti-loosening structure for thin-film capacitor leads of the present invention will be described with reference to the accompanying drawings.

[0022] Figure 1-4 This invention illustrates an embodiment of a lead-locking structure for a thin-film capacitor, comprising two symmetrical leads 2 fixedly mounted on the top of a thin-film capacitor 1. Each lead 2 has a threaded sleeve 4 on its surface and a rubber sleeve 3 fitted over it. The threaded sleeve 4 fits over the surface of the rubber sleeve 3. The elastic deformation of the rubber sleeve 3 buffers external vibrations. The rubber sleeve 3 is elastic and can tightly wrap around the lead 2 through an interference fit, filling the gap between the lead 2 and the threaded sleeve 4, directly preventing the lead 2 from loosening through friction. A mounting sleeve 5 is fixedly connected to the bottom of the threaded sleeve 4, fitting against the top of the thin-film capacitor 1. A lower bottom ring 6 is fixedly connected to the bottom of the mounting sleeve 5, fitting against the top of the thin-film capacitor 1. Multiple Z-shaped... Block 13, the bottom of multiple Z-shaped blocks 13 is fixedly installed on the top of the film capacitor 1. Through the setting of Z-shaped blocks 13, the Z-shaped blocks 13 are evenly distributed in the circumference. The bottom surface of the Z-shaped blocks 13 can form a contact constraint with the top of the film capacitor 1, restricting the radial sway of the lead 2, evenly distributing the load, and improving the stability of the connection between the mounting sleeve 5, the lower bottom ring 6 and the top of the film capacitor 1. The top of the mounting sleeve 5 is provided with a connector 8. The bottom of the connector 8 is fitted with a spring washer 7. The bottom of the spring washer 7 is pressed against the top of the lower bottom ring 6. The top of the connector 8 is fixedly connected with a lower retaining tooth 9. The upper surface of the threaded sleeve 4 is threadedly connected with a fastener 10. The bottom of the fastener 10 is provided with an upper retaining tooth 12. The lower retaining tooth 9 engages with the upper retaining tooth 12. The bottom of the fastener 10 is tightly fitted with a connecting ring 11. The connecting ring 11 is fixedly connected with the upper retaining tooth 12.

[0023] Working Principle: In use, the user places the rubber sleeve 3 on the surface of the lead wire 2, with the bottom of the rubber sleeve 3 adhering to the top of the film capacitor 1. Then, the user places the rubber sleeve 3 on the surface of the lead wire 2, and the threaded sleeve 4 on the surface of the rubber sleeve 3. Next, the user places the mounting sleeve 5 on the bottom of the threaded sleeve 4, ensuring the mounting sleeve 5 is in contact with the top of the film capacitor 1. The lower bottom ring 6 is placed on the bottom of the mounting sleeve 5. At this point, Z-shaped blocks 13 are mounted on the surfaces of the mounting sleeve 5 and the lower bottom ring 6. The Z-shaped blocks 13 are evenly distributed circumferentially, and their bottom surfaces can form a line with the top of the film capacitor 1. Contact constraint restricts the radial movement of lead wire 2. When spring washer 7 is pressed against the top of bottom ring 6, lower locking tooth 9 and connector 8 are sleeved on the surface of threaded sleeve 4, thereby making connector 8 fit with spring washer 7. Then, connecting ring 11 drives upper locking tooth 12 to engage with lower locking tooth 9, and then rotates fastener 10, causing fastener 10 to rotate downward on the surface of threaded sleeve 4, so that fastener 10 will fit tightly with connecting ring 11, thus preventing loosening of lower locking tooth 9 and upper locking tooth 12 during engagement. Finally, it can effectively prevent lead wire 2 from shifting, deforming or breaking.

[0024] In summary, this anti-loosening structure for the thin-film capacitor leads further secures the bottom of the threaded sleeve 4 by using the mounting sleeve 5 and the lower bottom ring 6. Then, through the coordinated use of the lower locking teeth 9, the upper locking teeth 12, and the fasteners 10, the mounting sleeve 5 is stably installed on the surface of the lead 2. This prevents the solder joints between the thin-film capacitor 1 and the lead 2 from loosening, thus achieving stable current transmission. It avoids increased contact resistance due to loosening, prevents lead displacement, deformation, or breakage, and prevents damage to the internal structure of the capacitor from loosening and pulling, ensuring the overall structural integrity of the capacitor.

Claims

1. A lead-locking anti-loosening structure for a thin-film capacitor, characterized in that, The device includes two symmetrical leads (2) fixedly mounted on the top of a film capacitor (1). Each of the two leads (2) is provided with a threaded sleeve (4). A mounting sleeve (5) is fixedly connected to the bottom of the surface of the threaded sleeve (4). The mounting sleeve (5) fits against the top of the film capacitor (1). A lower bottom ring (6) is fixedly connected to the bottom of the surface of the mounting sleeve (5). The lower bottom ring (6) fits against the top of the film capacitor (1). A connector (8) is provided on the top of the mounting sleeve (5). A lower locking tooth (9) is fixedly connected to the top of the connector (8). A fastener (10) is threadedly connected to the upper surface of the threaded sleeve (4). An upper locking tooth (12) is provided at the bottom of the fastener (10). The lower locking tooth (9) engages with the upper locking tooth (12).

2. The anti-loosening structure for thin-film capacitor leads according to claim 1, characterized in that, Both leads (2) are fitted with rubber sleeves (3), and the threaded sleeve (4) is fitted on the surface of the rubber sleeves (3).

3. The anti-loosening structure for thin-film capacitor leads according to claim 2, characterized in that, The bottom of the connector (8) is fitted with a spring washer (7), and the bottom of the spring washer (7) is pressed against the top of the bottom ring (6).

4. The anti-loosening structure for thin-film capacitor leads according to claim 3, characterized in that, The bottom of the fastener (10) is tightly fitted with a connecting ring (11), and the connecting ring (11) is fixedly connected to the upper retaining tooth (12).

5. The anti-loosening structure for thin-film capacitor leads according to claim 4, characterized in that, Multiple Z-shaped blocks (13) are fixedly installed on the surfaces of the mounting sleeve (5) and the lower bottom ring (6), and the bottom of the multiple Z-shaped blocks (13) is fixedly installed on the top of the film capacitor (1).

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