Insulation protection structure for high-voltage ceramic capacitor

Abstract

The utility model discloses an insulation protection structure for a high-voltage ceramic capacitor, and aims to provide the insulation protection structure for the high-voltage ceramic capacitor, which is convenient to decompose. The capacitor comprises a capacitor body, a bottom plate, a top plate and a protection frame, the bottom plate is arranged at the lower end of the capacitor body, pins are arranged on the capacitor body, one ends of the pins are connected with the capacitor body, the other ends of the pins penetrate through the bottom plate and then are arranged on the other side of the bottom plate, the top plate is arranged at the upper end of the capacitor body, and the bottom plate is connected with the top plate. A bearing plate is arranged on one side of the capacitor main body, the bearing plate is attached to the capacitor main body, the capacitor main body, the bottom plate and the top plate are all arranged in a protection frame, and the protection frame is detachably connected with the bottom plate. The beneficial effects of the utility model are that the protection structure is convenient to decompose, the position of the capacitor can be limited, the bottom plate and the top plate can be conveniently separated, the capacitor main body can be further limited, and the protection frame is convenient to disassemble and move.

Description

Technical Field

[0001] This utility model relates to the field of capacitor-related technology, and in particular to an insulating and protective structure for high-voltage ceramic capacitors. Background Technology

[0002] High-voltage ceramic capacitors are capacitors that use ceramic materials as the dielectric, featuring high voltage withstand, small size, and low loss. Currently, some ceramic capacitors suffer from poor insulation between the capacitor core and the casing, leading to short circuits. Existing casings are relatively immobile when installing the capacitor core, and the core is prone to movement within the casing, thus reducing the capacitor's practicality. Existing ceramic capacitors mostly employ sealed protective structures, which offer good protection, but these structures are difficult to disassemble and install, hindering maintenance of the capacitor.

[0003] Chinese Patent Publication No. CN220873417U, published on April 30, 2024, discloses a capacitor with protective function, comprising a body, an inner protective shell, an outer protective shell, and an end cap. The inner protective shell is tightly fitted and fixedly connected to the outside of the body. The inner protective shell is characterized by having several air columns on its outer surface, with the outer protective shell sleeved on its outer side. The inner wall of the outer protective shell is connected to the air columns. The outer protective shell is integrally formed and includes a first protective layer, a second protective layer, and a connecting ring. A gap is formed between the first and second protective layers. The end cap is fixed to the upper side of the body, with its lower end face fitting against the upper end face of the body. A pin protection cover is integrally formed on the end cap, and a through hole is provided on the pin protection cover, with a rubber hose fixedly connected thereto. A drawback of this invention is that the protective structure of the capacitor is not easily disassembled. Utility Model Content

[0004] The present invention aims to overcome the shortcomings of existing technologies where the protective structure is not easily disassembled, and provides an insulating protective structure for high-voltage ceramic capacitors that facilitates the disassembly of the protective structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An insulating protective structure for a high-voltage ceramic capacitor includes a capacitor body, a base plate, a top plate, and a protective frame. The base plate is placed at the lower end of the capacitor body. The capacitor body has pins, one end of which is connected to the capacitor body, and the other end of which passes through the base plate and is placed on the other side of the base plate. The top plate is placed at the upper end of the capacitor body, and the base plate is connected to the top plate. A support plate is provided on one side of the capacitor body, and the support plate is in contact with the capacitor body. The capacitor body, base plate, and top plate are all placed within the protective frame, and the protective frame is detachably connected to the base plate.

[0007] The capacitor body is placed within a protective frame. A top plate is placed above the capacitor, and a bottom plate is placed below it. The capacitor body is confined between the top and bottom plates by the connection between them. The protective frame is then installed on the bottom plate to provide all-around protection for the capacitor body. The top plate protects the upper part of the capacitor body, and the bottom plate protects the lower part. The leads mounted on the capacitor pass through the bottom plate, allowing the capacitor body to connect to electronic components and perform its function. A support plate is installed inside the protective frame, fitting snugly against the side of the capacitor body to restrain it and prevent it from shaking. The capacitor body can be inspected by separating the protective frame from the bottom plate, and the protective function can be removed by separating the bottom and top plates. All parts of this protective structure are made of insulating material to ensure its protective performance and facilitate disassembly.

[0008] Preferably, the support plate is attached to one side of the capacitor body, and support blocks are installed on both sides of the support plate, with the support blocks also attached to the capacitor body. One side of the support plate is attached to the inner wall of the protective frame, and the other side is attached to the capacitor body, restricting the position of the capacitor. Simultaneously, two support blocks are installed on the support plate, one on each side, and the two support blocks are attached to the lower side of the capacitor to prevent the capacitor from sliding up and down. This design effectively restricts the position of the capacitor.

[0009] Preferably, connecting screws are installed on both sides of the base plate. The top end of the connecting screw on one side of the base plate passes through the top plate and is positioned above the top plate. The top end of the connecting screw on the other side of the base plate passes through the support plate and the top plate and is positioned above the top plate. A nut is installed at the top end of the connecting screw, and the nut is threadedly connected to the top end of the connecting screw. Connecting screws are installed on the side of the base plate facing the capacitor body, and connecting screws are installed on both sides. The connecting screw on one side directly penetrates the top plate, while the connecting screw on the side positioned on the support plate penetrates the support plate and then penetrates the top plate. This can limit the relative position of the support plate and the base plate. A nut is installed at the end of the connecting screw that penetrates the top plate. The top plate, base plate, and support plate can be fixed together by the screws, restricting the capacitor body between the top plate and the base plate. The support plates and connecting screws on the front and rear sides restrict the capacitor body and ensure that it does not come into contact with the protective frame. This design facilitates the separation of the base plate and the top plate.

[0010] Preferably, the top plate is provided with a fitting groove that fits into the upper end of the capacitor body, and a limiting block is installed on the bottom plate that fits into the other side of the capacitor body. The fitting groove on the side of the top plate facing the capacitor body fits into the capacitor body to prevent wear on the capacitor body during installation and use. To further restrict the position of the capacitor body, a limiting block is installed on the bottom plate. The limiting block fits into the side of the capacitor body that does not contact the support plate, further confining the capacitor body to the bottom plate. The limiting block also fits into the inner wall of the protective frame. This design further restricts the capacitor body.

[0011] Preferably, the protective frame has openings at both ends, and the base plate has locking blocks installed on both sides. The protective frame has slots inside, and the base plate is detachably connected to the protective frame through the engagement of the locking blocks and slots. The openings at both ends of the protective frame facilitate the insertion of the protective frame to enclose the base plate. The inner wall of the protective frame has slots, and the base plate has locking blocks installed on both the front and rear sides. When the protective frame is pushed in, the locking blocks engage with the slots, completing the detachable connection between the protective frame and the base plate. This connection facilitates the removal of the protective frame, making the design convenient for disassembly.

[0012] Preferably, the plane containing the top surface of the protective frame is the same as the plane containing the top surface of the top plate, and the plane containing the bottom surface of the protective frame is the same as the plane containing the bottom surface of the bottom plate. A pressing block with finger grooves is installed on the side of the protective frame. The top surface of the protective frame aligns with the top surface of the top plate, and the bottom surface of the protective frame aligns with the bottom surface of the bottom plate, ensuring the regularity of the protective structure and improving its sealing performance. Since the protective frame and the bottom plate are detachably connected, pressing blocks with finger grooves are installed on the protective frame to facilitate separation. The pressing blocks can be squeezed through the finger grooves to apply tension, thereby separating the protective frame from the bottom plate. This design facilitates the movement of the protective frame.

[0013] The beneficial effects of this utility model are: it facilitates the disassembly of the protective structure, can restrict the position of the capacitor, facilitates the separation of the bottom plate and the top plate, can further restrict the capacitor body, facilitates the disassembly of the protective frame, and facilitates the movement of the protective frame. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 Cross-sectional view;

[0016] Figure 3 yes Figure 2 Structural diagram of the base plate and support plate;

[0017] Figure 4 yes Figure 2 Schematic diagram of the top slab structure;

[0018] Figure 5 yes Figure 1 A schematic diagram of the structure of the central protective frame.

[0019] In the diagram: 1. Capacitor body; 2. Base plate; 3. Top plate; 4. Protective frame; 5. Pins; 6. Support plate; 7. Support block; 8. Connecting screw; 9. Nut; 10. Fitting groove; 11. Limiting block; 12. Locking block; 13. Locking groove; 14. Pressing block; 15. Finger groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 , Figure 2In the illustrated embodiment, an insulating protective structure for a high-voltage ceramic capacitor includes a capacitor body 1, a base plate 2, a top plate 3, and a protective frame 4. The base plate 2 is placed at the lower end of the capacitor body 1. The capacitor body 1 is provided with pins 5, one end of which is connected to the capacitor body 1, and the other end of which passes through the base plate 2 and is placed on the other side of the base plate 2. The top plate 3 is placed at the upper end of the capacitor body 1, and the base plate 2 is connected to the top plate 3. A support plate 6 is provided on one side of the capacitor body 1, and the support plate 6 is attached to the capacitor body 1. The capacitor body 1, the base plate 2, and the top plate 3 are all placed inside the protective frame 4, and the protective frame 4 is detachably connected to the base plate 2.

[0022] like Figure 3 As shown, the support plate 6 is attached to one side of the capacitor body 1, and support blocks 7 are installed on both sides of the support plate 6, with the support blocks 7 attached to the capacitor body 1.

[0023] Both sides of the base plate 2 are equipped with connecting screws 8. The top end of the connecting screw 8 on one side of the base plate 2 passes through the top plate 3 and is placed above the top plate 3. The top end of the connecting screw 8 on the other side of the base plate 2 passes through the support plate 6 and the top plate 3 and is placed above the top plate 3. A nut 9 is installed on the top end of the connecting screw 8, and the nut 9 is threadedly connected to the top end of the connecting screw 8.

[0024] like Figure 4 As shown, the top plate 3 is provided with a fitting groove 10, which fits with the upper end of the capacitor body 1. The bottom plate 2 is equipped with a limiting block 11, which fits with the other side of the capacitor body 1.

[0025] like Figure 5 As shown, both ends of the protective frame 4 are open, and both sides of the base plate 2 are equipped with locking blocks 12. The protective frame 4 is provided with a locking groove 13. The base plate 2 is detachably connected to the protective frame 4 through the cooperation of the locking blocks 12 and the locking groove 13.

[0026] The plane on which the top surface of the protective frame 4 is located is the same as the plane on which the top surface of the top plate 3 is located, and the plane on which the bottom surface of the protective frame 4 is located is the same as the plane on which the bottom surface of the bottom plate 2 is located. A pressing block 14 is installed on the side of the protective frame 4, and a finger groove 15 is provided on the pressing block 14.

[0027] When installing the protective structure, first attach the support plate 6 to the connecting screw 8 on one side of the base plate 2, place the support plate 6 on the base plate 2, then pass the lead 5 of the capacitor body 1 through the base plate 2, place the capacitor body 1 above the base plate 2, and at the same time, attach one side of the capacitor body 1 to the support plate 6, and support both sides by the support plate 7, while attaching the other side of the capacitor body 1 to the limiting block 11.

[0028] After the base plate 2 is connected to the capacitor body 1, the top plate 3 is installed at the upper end of the connecting screw 8, so that the fitting groove 10 of the top plate 3 fits with the upper end of the capacitor body 1, and the top plate 3 fits with the top surface of the support plate 6, thus covering the capacitor body 1 inside.

[0029] After the base plate 2 and top plate 3 are placed, all components are pushed into the protective frame 4. The protective frame 4 is detachably connected to the base plate 2 through the cooperation of the locking block 12 and the locking groove 13. After all components are placed in the protective frame 4, the entire structure is fixed together by the connection of the nut 9 and the connecting screw 8, thus completing the sealing of the protective structure. Then the capacitor body 1 can be installed normally. When maintenance is required, after removing the nut 9, the protective frame 5 can be pulled off by applying pulling force through the finger groove 15 on the pressing block 14.

Claims

1. An insulating protective structure for a high-voltage ceramic capacitor, characterized in that, The capacitor body includes a capacitor body (1), a base plate (2), a top plate (3), and a protective frame (4). The base plate (2) is placed at the lower end of the capacitor body (1). The capacitor body (1) is provided with pins (5). One end of the pins (5) is connected to the capacitor body (1), and the other end of the pins (5) passes through the base plate (2) and is placed on the other side of the base plate (2). The top plate (3) is placed at the upper end of the capacitor body (1). The base plate (2) is connected to the top plate (3). A support plate (6) is provided on one side of the capacitor body (1). The support plate (6) is attached to the capacitor body (1). The capacitor body (1), the base plate (2), and the top plate (3) are all placed inside the protective frame (4). The protective frame (4) is detachably connected to the base plate (2).

2. The insulating protection structure for a high-voltage ceramic capacitor according to claim 1, characterized in that, The support plate (6) is attached to one side of the capacitor body (1), and support blocks (7) are installed on both sides of the support plate (6), and the support blocks (7) are attached to the capacitor body (1).

3. The insulating protection structure for a high-voltage ceramic capacitor according to claim 2, characterized in that, Both sides of the base plate (2) are equipped with connecting screws (8). The top end of the connecting screw (8) on one side of the base plate (2) passes through the top plate (3) and is placed above the top plate (3). The top end of the connecting screw (8) on the other side of the base plate (2) passes through the support plate (6) and the top plate (3) and is placed above the top plate (3). The top end of the connecting screw (8) is equipped with a nut (9), and the nut (9) is threadedly connected to the top end of the connecting screw (8).

4. The insulating protection structure for a high-voltage ceramic capacitor according to claim 2, characterized in that, The top plate (3) is provided with a fitting groove (10), which is fitted to the upper end of the capacitor body (1). The bottom plate (2) is equipped with a limiting block (11), which is fitted to the other side of the capacitor body (1).

5. The insulating protection structure for a high-voltage ceramic capacitor according to claim 1, characterized in that, Both ends of the protective frame (4) are open, and both sides of the base plate (2) are equipped with a locking block (12). The protective frame (4) is provided with a slot (13). The base plate (2) is detachably connected to the protective frame (4) through the cooperation of the locking block (12) and the slot (13).

6. The insulating protective structure for a high-voltage ceramic capacitor according to claim 5, characterized in that, The plane on the top surface of the protective frame (4) is the same as the plane on the top surface of the top plate (3), the plane on the bottom surface of the protective frame (4) is the same as the plane on the bottom surface of the bottom plate (2), and a pressing block (14) is installed on the side of the protective frame (4), and the pressing block (14) is provided with a finger groove (15).

Images