Metallized film capacitor with dustproof structure

Abstract

The utility model discloses a metallized film capacitor with a dustproof structure, which comprises a capacitor inner shell, a capacitor outer shell is arranged outside the capacitor inner shell, and the center line of the capacitor outer shell and the center line of the capacitor inner shell are on the same vertical plane. One side of the capacitor inner shell is provided with a dismounting structure used for rapid dismounting. According to the metallized film capacitor with the dustproof structure, the threaded part is arranged, when the metallized film capacitor needs to be disassembled and assembled, the threaded lantern ring is rotated to be separated from the outside of the threaded part, then the threaded lantern ring is disassembled from the outside of the positioning disc, and then the positioning disc can be disassembled from one side of the inner shell of the capacitor, so that the inner core of the capacitor can be disassembled conveniently; after inspection is completed, one side of the inner shell of the capacitor is covered with the positioning disc, then the threaded part is sleeved with the threaded lantern ring, the threaded lantern ring is screwed tightly, the positioning pressing ring is attached to one side of the positioning disc, and therefore the positioning disc is positioned through the positioning pressing ring, and the problem that rapid disassembly and assembly cannot be achieved is solved.

Description

Technical Field

[0001] This utility model relates to the field of metallized film capacitor technology, specifically a metallized film capacitor with a dustproof structure. Background Technology

[0002] Metallized film capacitors are capacitors made by winding organic plastic film as the dielectric and metallized film as the electrode material. They have advantages such as high safety and wide applicability, and are widely used in a variety of fields.

[0003] However, current metallized film capacitors still have some drawbacks in use. They cannot be easily disassembled and assembled, making it difficult to quickly handle problems when they occur.

[0004] A novel metallized thin-film capacitor with a dustproof structure is proposed to address the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a metallized film capacitor with a dustproof structure to solve the problem of inability to quickly disassemble and assemble mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a metallized thin-film capacitor with a dustproof structure, comprising an inner capacitor shell, an outer capacitor shell disposed outside the inner capacitor shell, the centerline of the outer capacitor shell and the centerline of the inner capacitor shell being on the same vertical plane, and a disassembly and assembly structure for quick disassembly and assembly being provided on one side of the inner capacitor shell.

[0007] The disassembly and assembly structure includes a threaded part. A threaded part is provided on one side of the outer surface of the capacitor inner shell. A threaded collar is movably connected to the outside of the threaded part. A positioning plate is movably connected to one side of the capacitor inner shell. A positioning pressure ring is fixedly connected to one side of the inner surface of the threaded collar. A connecting plate is fixedly connected to one side of the outer surface of the threaded collar.

[0008] Preferably, the positioning disk is movably connected to the positioning pressure ring, and the connecting disk is movably connected to the capacitor housing.

[0009] Preferably, the centerline of the threaded collar and the centerline of the positioning pressure ring are on the same horizontal plane, and the centerline of the positioning disk and the centerline of the capacitor inner shell are on the same vertical plane.

[0010] Preferably, two sets of second terminals are fixedly connected to one side of the capacitor inner shell, and two sets of fixing sleeves are fixedly connected to one side of the positioning plate, with a rubber sleeve fixedly connected inside the fixing sleeve.

[0011] Preferably, the rubber sleeve is movably connected to the second joint, which passes through the fixed sleeve and extends to the outside of the fixed sleeve.

[0012] Preferably, an external threaded sleeve is fixedly connected to one side of the capacitor inner shell, and a first connector is movably connected inside the external threaded sleeve. A through groove is opened on one side of the capacitor outer shell, and a fixing nut is movably connected to the outside of the external threaded sleeve. A positioning ring is fixedly connected to one side inside the capacitor outer shell, a support ring is fixedly connected to the inside of the capacitor outer shell, and a support plate is fixedly connected to one side outside the capacitor inner shell.

[0013] Preferably, the positioning ring is movably connected to the inner shell of the capacitor, and the fixing nut is movably connected to the outer shell of the capacitor.

[0014] Preferably, the support disk is movably connected to the capacitor housing, and the support rings inside the capacitor housing are arranged at equal intervals.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the metallized film capacitor with dustproof structure not only achieves quick assembly and disassembly and effective dustproofing, but also improves the strength of the capacitor;

[0016] (1) By providing a threaded part, a threaded collar, a positioning plate, a positioning pressure ring and a connecting plate, when it is necessary to disassemble or install the capacitor, rotate the threaded collar to disengage it from the outside of the threaded part and then remove the threaded collar from the outside of the positioning plate. After that, the positioning plate can be removed from one side of the capacitor inner shell, so that the capacitor core inside can be easily removed. After inspection, the positioning plate is put back on one side of the capacitor inner shell. Then the threaded collar is put on the outside of the threaded part and tightened, so that the positioning pressure ring fits against one side of the positioning plate. Thus, the positioning plate is positioned by the positioning pressure ring, which makes it easy to disassemble and install.

[0017] (2) By setting a positioning plate, a fixing sleeve, a rubber sleeve and a second connector, two sets of fixing sleeves are installed on one side of the positioning plate of the capacitor. The fixing sleeve is fitted onto the outside of the second connector to support the second connector. At the same time, the rubber sleeve inside the fixing sleeve fits against the outside of the second connector to effectively ensure the sealing, thereby preventing dust from entering the gaps and affecting the operation of the internal core, thus achieving effective dust prevention.

[0018] (3) By setting a support ring, a positioning ring, a fixing nut, an external threaded sleeve, a support plate and a through groove, a positioning ring is installed on one side inside the capacitor shell and a support plate is installed on one side outside the capacitor shell. The support plate and the positioning ring can support the capacitor shell respectively to ensure the stability of the capacitor shell. After installation, the external threaded sleeve is passed through the through groove and the fixing nut is sleeved on the outside of the external threaded sleeve and tightened. The capacitor shell is positioned by the fixing nut. The support ring inside the capacitor shell can effectively improve the overall strength of the capacitor shell and reduce the probability of deformation, thereby improving the strength of the capacitor. Attached Figure Description

[0019] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0020] Figure 2 This is a side view of the positioning pressure ring structure of this utility model;

[0021] Figure 3 This is a side view of the external threaded sleeve structure of this utility model;

[0022] Figure 4 This is a front view cross-sectional structural diagram of the threaded collar of this utility model.

[0023] In the diagram: 1. Capacitor inner shell; 2. Capacitor outer shell; 3. Support ring; 4. Positioning ring; 5. Fixing nut; 6. First connector; 7. External threaded sleeve; 8. Threaded part; 9. Support plate; 10. Threaded collar; 11. Positioning plate; 12. Fixing sleeve; 13. Rubber sleeve; 14. Second connector; 15. Positioning pressure ring; 16. Connecting plate; 17. Through groove. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figure 1-4 A metallized film capacitor with a dustproof structure includes a capacitor inner shell 1, a capacitor outer shell 2 is disposed outside the capacitor inner shell 1, the center line of the capacitor outer shell 2 is on the same vertical plane as the center line of the capacitor inner shell 1, and a disassembly and assembly structure for quick disassembly and assembly is provided on one side of the capacitor inner shell 1.

[0026] The disassembly and assembly structure includes a threaded part 8. A threaded part 8 is provided on one side of the outer side of the capacitor inner shell 1. A threaded collar 10 is movably connected to the outside of the threaded part 8. A positioning plate 11 is movably connected to one side of the capacitor inner shell 1. A positioning pressure ring 15 is fixedly connected to one side inside the threaded collar 10. A connecting plate 16 is fixedly connected to one side outside the threaded collar 10.

[0027] The positioning disk 11 is movably connected to the positioning pressure ring 15, and the connecting disk 16 is movably connected to the capacitor housing 2;

[0028] The centerline of the threaded collar 10 and the centerline of the positioning pressure ring 15 are on the same horizontal plane, and the centerline of the positioning disk 11 and the centerline of the capacitor inner shell 1 are on the same vertical plane.

[0029] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, when the capacitor needs to be disassembled, rotate the threaded collar 10 to disengage it from the outside of the threaded portion 8 and remove the threaded collar 10 from the outside of the positioning plate 11. Then, the positioning plate 11 can be removed from one side of the capacitor inner shell 1, making it easy to remove the internal capacitor core. After inspection, cover the positioning plate 11 back onto one side of the capacitor inner shell 1. Then, put the threaded collar 10 on the outside of the threaded portion 8 and tighten it, so that the positioning pressure ring 15 fits against one side of the positioning plate 11. Thus, the positioning plate 11 is positioned by the positioning pressure ring 15, which makes it easy to disassemble and assemble.

[0030] Example 2: Two sets of second pins 14 are fixedly connected to one side of the capacitor inner shell 1, and two sets of fixing sleeves 12 are fixedly connected to one side of the positioning plate 11. A rubber sleeve 13 is fixedly connected inside the fixing sleeve 12.

[0031] The rubber sleeve 13 is movably connected to the second joint 14, which passes through the fixed sleeve 12 and extends to the outside of the fixed sleeve 12.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, two sets of fixing sleeves 12 are installed on one side of the positioning plate 11 of the capacitor. The fixing sleeves 12 are fitted onto the outside of the second connector 14 to support the second connector 14. At the same time, the rubber sleeve 13 inside the fixing sleeve 12 fits against the outside of the second connector 14 to effectively ensure sealing, thereby preventing dust from entering through gaps and affecting the operation of the internal core, thus achieving effective dust prevention.

[0033] Example 3: An external threaded sleeve 7 is fixedly connected to one side of the inner shell 1 of the capacitor. The first connector 6 is movably connected inside the external threaded sleeve 7. A through groove 17 is opened on one side of the outer shell 2 of the capacitor. A fixing nut 5 is movably connected to the outside of the external threaded sleeve 7. A positioning ring 4 is fixedly connected to one side inside the outer shell 2 of the capacitor. A support ring 3 is fixedly connected to the inside of the outer shell 2 of the capacitor. A support plate 9 is fixedly connected to one side outside the inner shell 1 of the capacitor.

[0034] The positioning ring 4 is movably connected to the inner shell 1 of the capacitor, and the fixing nut 5 is movably connected to the outer shell 2 of the capacitor.

[0035] The support plate 9 is movably connected to the capacitor housing 2, and the support rings 3 inside the capacitor housing 2 are arranged at equal intervals.

[0036] Specifically, such as Figure 1 and Figure 3 As shown, a positioning ring 4 is installed on one side inside the capacitor shell 2, and a support plate 9 is installed on one side outside the capacitor inner shell 1. The support plate 9 and the positioning ring 4 can support the capacitor shell 2 respectively, ensuring the stability of the capacitor shell 2. After installation, the external threaded sleeve 7 is passed through the through groove 17 and the fixing nut 5 is sleeved on the outside of the external threaded sleeve 7 and tightened, thereby positioning the capacitor shell 2 by the fixing nut 5. The support ring 3 inside the capacitor shell 2 can effectively improve the overall strength of the capacitor shell 2 and reduce its probability of deformation, thus improving the strength of the capacitor.

[0037] Working Principle: In use, a positioning ring 4 is installed inside the capacitor shell 2 on one side, and a support plate 9 is installed outside the capacitor inner shell 1 on one side. The support plate 9 and the positioning ring 4 can support the capacitor shell 2 respectively, ensuring the stability of the capacitor shell 2. After installation, the external threaded sleeve 7 is passed through the through groove 17, and the fixing nut 5 is sleeved on the outside of the external threaded sleeve 7 and tightened, thereby positioning the capacitor shell 2 by the fixing nut 5. The support ring 3 inside the capacitor shell 2 can effectively improve the overall strength of the capacitor shell 2 and reduce its probability of deformation. When it is necessary to disassemble or assemble the capacitor, rotate the threaded collar 10 to disengage it from the outside of the threaded part 8, and then remove the threaded collar 10 from the outside of the positioning plate 11. Next, the positioning plate 11 can be removed from one side of the capacitor inner shell 1, making it easier to remove the internal capacitor core. After inspection, the positioning plate 11 is put back on one side of the capacitor inner shell 1. Then, the threaded collar 10 is fitted onto the outside of the threaded part 8 and tightened, so that the positioning pressure ring 15 fits against one side of the positioning plate 11, thereby positioning the positioning plate 11 by the positioning pressure ring 15. Two sets of fixing sleeves 12 are installed on one side of the positioning plate 11 of the capacitor. The fixing sleeves 12 are fitted onto the outside of the second connector 14 to support the second connector 14. At the same time, the rubber sleeve 13 inside the fixing sleeve 12 fits against the outside of the second connector 14 to effectively ensure sealing, thereby preventing dust from entering the gaps and affecting the operation of the internal core.

Claims

1. A metallized film capacitor having a dustproof structure, comprising a capacitor inner case (1), characterized in that: The capacitor inner shell (1) is externally provided with a capacitor shell (2), the center line of the capacitor shell (2) and the center line of the capacitor inner shell (1) are on the same vertical plane, and one side of the capacitor inner shell (1) is provided with a dismounting structure for quick dismounting; The dismounting structure comprises a threaded portion (8), one side of the capacitor inner shell (1) is provided with the threaded portion (8), a threaded sleeve ring (10) is movably connected to the outside of the threaded portion (8), a positioning disc (11) is movably connected to one side of the capacitor inner shell (1), a positioning pressure ring (15) is fixedly connected to one side of the inside of the threaded sleeve ring (10), and a connecting disc (16) is fixedly connected to one side of the outside of the threaded sleeve ring (10).

2. The metallized film capacitor with dustproof structure according to claim 1, characterized in that: The positioning disc (11) and the positioning pressure ring (15) are movably connected, and the connecting disc (16) and the capacitor shell (2) are movably connected.

3. The metallized film capacitor with dustproof structure according to claim 1, characterized in that: The center line of the threaded sleeve ring (10) and the center line of the positioning pressure ring (15) are on the same horizontal plane, and the center line of the positioning disc (11) and the center line of the capacitor inner shell (1) are on the same vertical plane.

4. The metallized film capacitor with dustproof structure according to claim 1, characterized in that: One side of the capacitor inner shell (1) is fixedly connected with two groups of second pins (14), one side of the positioning disc (11) is fixedly connected with two groups of fixed sleeves (12), and the inside of the fixed sleeve (12) is fixedly connected with a rubber sleeve (13).

5. The metallized film capacitor with dustproof structure according to claim 4, characterized in that: The rubber sleeve (13) and the second pin (14) are movably connected, and the second pin (14) penetrates through the fixed sleeve (12) and extends to the outside of the fixed sleeve (12).

6. The metallized film capacitor with dustproof structure according to claim 1, characterized in that: One side of the capacitor inner shell (1) is fixedly connected with an external threaded sleeve (7), the inside of the external threaded sleeve (7) is movably connected with a first pin (6), one side of the capacitor shell (2) is provided with a through groove (17), the outside of the external threaded sleeve (7) is movably connected with a fixed nut (5), one side of the inside of the capacitor shell (2) is fixedly connected with a positioning ring (4), the inside of the capacitor shell (2) is fixedly connected with a supporting ring (3), and one side of the outside of the capacitor inner shell (1) is fixedly connected with a supporting disc (9).

7. The metallized film capacitor with dustproof structure according to claim 6, characterized in that: The positioning ring (4) and the capacitor inner shell (1) are movably connected, and the fixed nut (5) and the capacitor shell (2) are movably connected.

8. The metallized film capacitor with dustproof structure according to claim 6, characterized in that: The supporting disc (9) and the capacitor shell (2) are movably connected, and the supporting ring (3) inside the capacitor shell (2) is arranged at equal intervals.

Images