Metallized film capacitor capable of preventing corner collision

Abstract

The utility model discloses a metalized film capacitor capable of preventing corner collision, which comprises a capacitor, the capacitor comprises a main body and pins, longitudinal beams, cross beams and vertical beams are flexibly assembled on the edge of the main body, and the longitudinal beams, the cross beams and the vertical beams are mutually connected to form a bottomless protection frame perfectly matched with the main body; the corners of the connecting parts of the longitudinal beams, the cross beams and the vertical beams are integrally connected with expansion parts, the inner sides of the expansion parts are attached to the main body, and the outer sides of the expansion parts are flush with the outer sides of the longitudinal beams, the cross beams and the vertical beams. According to the utility model, the protective frame sleeve is arranged to protect the corners of the main body, so that the physical damage of the dielectric layer caused by collision of the corners in the transportation and installation process is greatly reduced; meanwhile, the bottomless design of the protective frame sleeve facilitates the installation and disassembly of the protective frame sleeve, thereby facilitating the recovery and reuse, and not affecting the installation and use of the capacitor.

Description

Technical Field

[0001] This utility model belongs to the field of thin film capacitor technology, and particularly relates to a metallized thin film capacitor with anti-edge corner impact. Background Technology

[0002] Metallized film capacitors are capacitors that use organic plastic films (such as polypropylene and polyester) as the dielectric, with a metallized layer formed on the surface through a vacuum evaporation process to serve as electrodes. Their core characteristics are that they are manufactured using winding or stacking processes, resulting in advantages such as small size and strong self-healing properties.

[0003] Metallized film capacitors typically have a plastic casing or are encapsulated directly in powdered epoxy resin without a casing. Due to the stress concentration at the corners of the capacitor, they are more susceptible to damage to internal components and breakage of leads due to impacts, which can lead to local short circuits or a decrease in capacitance.

[0004] Since metallized film capacitors are mostly prismatic in shape, they have edges and corners. During transportation or installation, bumps to these edges and corners can easily cause physical damage to the dielectric layer (such as scratches and dents), damaging the insulation performance. In high-voltage or high-frequency scenarios, dielectric breakdown can easily occur, and even the self-healing function can be affected, resulting in poor performance or direct damage to the metallized film capacitor. To solve the above problems, we propose a metallized film capacitor that is protected against edge and corner bumps. Utility Model Content

[0005] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0006] A metallized film capacitor designed to prevent edge and corner impacts includes a capacitor, which includes a main body and pins. The main body is movably fitted with longitudinal beams, transverse beams and vertical beams along its edges. Multiple longitudinal beams, transverse beams and vertical beams are connected together to form a bottomless protective frame that fits the main body.

[0007] The connecting parts of the longitudinal beams, transverse beams, and vertical beams are integrally connected with extension parts at the corners. The inner column side of the extension part is attached to the main body, and the outer side of the extension part is flush with the outer side of the longitudinal beams, transverse beams, and vertical beams.

[0008] As a preferred embodiment of the above technical solution, the longitudinal beams, transverse beams, vertical beams, and extension sections are all made of silicone material.

[0009] As a preferred embodiment of the above technical solution, air cavities are provided inside the longitudinal beam, transverse beam, vertical beam, and extension section, and the air cavities inside the longitudinal beam, transverse beam, and vertical beam are connected to the air cavities inside the extension section.

[0010] As a preferred embodiment of the above technical solution, the outer side of the extension is provided with a vent hole, and the vent hole is connected to the air cavity inside the extension.

[0011] As a preferred embodiment of the above technical solution, the outer corners of the longitudinal beam, transverse beam, vertical beam, and extension are all rounded.

[0012] As a preferred embodiment of the above technical solution, the lengths of the longitudinal beams and transverse beams are matched with the width and length of the main body, respectively; the length of the vertical beam is greater than the height of the main body.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The bottomless protective frame in this utility model can protect the corners of the main body, greatly reducing the physical damage to the dielectric layer caused by bumps and knocks during transportation and installation; at the same time, the bottomless design of the protective frame facilitates the installation and disassembly of the protective frame, thus facilitating recycling and reuse, and does not affect the installation and use of the capacitor.

[0015] 2. The addition of an extension section not only enhances the overall structural strength and stability of the bottomless protective frame, but also provides better protection for the corners of the main body. Furthermore, the extension section provides stronger coverage for the corners of the main body, preventing the main body from detaching from the protective frame. The addition of ventilation holes and air chambers further cushions the impact during collisions, thus improving the impact protection effect.

[0016] 3. The length of the vertical beam is greater than the height of the main body. When the main body is installed on the circuit board, the bottom end of the vertical beam contacts the circuit board first. Then, as the main body continues to descend until its bottom is in contact with the circuit board, a relative vertical displacement occurs between the protective frame and the main body (i.e., as shown in the image). Figure 2 (as shown in the diagram) This creates a gap between the longitudinal beams, transverse beams, and the top of the main body, making it easier for workers to remove the protective frame from this gap once the main body is fixed to the circuit board. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the anti-corner impact metallized film capacitor before installation in the embodiment.

[0018] Figure 2 The diagram shown is a three-dimensional structural schematic of the anti-corner impact metallized film capacitor during installation in the embodiment.

[0019] Figure 3 The diagram shown is a schematic representation of the overall structure of the bottomless protective frame in the anti-corner impact metallized film capacitor of the embodiment.

[0020] Figure 4 The diagram shown is a partial structural schematic of the bottomless protective frame in the anti-corner impact metallized film capacitor of the embodiment.

[0021] In the diagram: 10. Capacitor; 11. Main body; 12. Pin; 21. Longitudinal beam; 22. Crossbeam; 23. Vertical beam; 24. Extension section; 241. Vent hole; 30. Air chamber. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0023] Example

[0024] like Figure 1 , Figure 3 , Figure 4 As shown, the anti-corner impact metallized film capacitor includes a capacitor 10, which includes a main body 11 and pins 12. The main body 11 is movably fitted with longitudinal beams 21, horizontal beams 22 and vertical beams 23. Multiple longitudinal beams 21, horizontal beams 22 and vertical beams 23 are connected to form a bottomless protective frame that is compatible with the main body 11.

[0025] In this utility model, the bottomless protective frame can protect the corners of the main body 11, greatly reducing the physical damage to the dielectric layer caused by bumps and knocks during transportation and installation. At the same time, the bottomless design of the protective frame facilitates the installation and disassembly of the protective frame, thereby facilitating recycling and reuse, and does not affect the installation and use of the capacitor 10.

[0026] The connecting parts of the longitudinal beam 21, the transverse beam 22, and the vertical beam 23 are integrally connected with an extension part 24. The inner side of the extension part 24 is attached to the main body 11, and the outer side of the extension part 24 is flush with the outer side of the longitudinal beam 21, the transverse beam 22, and the vertical beam 23.

[0027] By setting the extension part 24, not only is the overall structural strength and stability of the bottomless protective frame strengthened, but it also provides better protection for the corners of the main body 11. Furthermore, the extension part 24 provides stronger coverage for the corners of the main body 11, preventing the main body 11 from detaching from the protective frame.

[0028] The longitudinal beam 21, the transverse beam 22, the vertical beam 23, and the extension section 24 are all made of silicone.

[0029] Air cavities 30 are provided inside the longitudinal beam 21, transverse beam 22, vertical beam 23, and extension section 24, and the air cavities 30 inside the longitudinal beam 21, transverse beam 22, and vertical beam 23 are connected to the air cavities 30 inside the extension section 24. A vent hole 241 is provided on the outer side of the extension section 24, and the vent hole 241 is connected to the air cavities 30 inside the extension section 24.

[0030] By setting vents 241 and air chambers 30, a further buffering effect can be provided during impacts, further improving the impact protection effect.

[0031] The outer corners of the longitudinal beam 21, the transverse beam 22, the vertical beam 23, and the extension section 24 are all rounded.

[0032] The rounded corner design reduces the sharp edges of the protective frame, thus preventing the main body 11 from being damaged by the sharp edges of the protective frame.

[0033] like Figure 2 As shown, the lengths of the longitudinal beam 21 and the transverse beam 22 are matched with the width and length of the main body 11, respectively; the length of the vertical beam 23 is greater than the height of the main body 11.

[0034] Before transportation and installation, i.e. Figure 1 As shown, the bottom end of the vertical beam 23 is lower than the bottom corner of the main body 11, which can better protect the bottom corner of the main body 11; when the main body 11 is installed on the circuit board, the bottom end of the vertical beam 23 contacts the circuit board first, and then the main body 11 continues to descend until the bottom of the main body 11 is in contact with the circuit board, and a relative vertical displacement occurs between the protective frame and the main body 11 (i.e., as shown). Figure 2 (as shown in the diagram) This creates a gap between the top of the longitudinal beam 21, the transverse beam 22, and the main body 11. After the main body 11 is fixed to the circuit board, it is easy for workers to remove the protective frame from this gap.

[0035] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A metallized film capacitor resistant to edge impacts, comprising a capacitor (10), said capacitor (10) comprising a body (11) and pins (12), characterized in that, The main body (11) is movably fitted with longitudinal beams (21), transverse beams (22) and vertical beams (23) along its edge. Multiple longitudinal beams (21), transverse beams (22) and vertical beams (23) are connected together to form a bottomless protective frame that is compatible with the main body (11). The connecting parts of the longitudinal beam (21), the transverse beam (22), and the vertical beam (23) are integrally connected with an extension part (24) at the corner. The inner side of the extension part (24) is attached to the main body (11), and the outer side of the extension part (24) is flush with the outer side of the longitudinal beam (21), the transverse beam (22), and the vertical beam (23).

2. The anti-edge corner impact metallized film capacitor according to claim 1, characterized in that, The longitudinal beam (21), transverse beam (22), vertical beam (23), and extension section (24) are all made of silicone material.

3. The anti-edge corner impact metallized film capacitor according to claim 2, characterized in that, The longitudinal beam (21), the transverse beam (22), the vertical beam (23), and the extension section (24) are all provided with air cavities (30), and the air cavities (30) inside the longitudinal beam (21), the transverse beam (22), and the vertical beam (23) are connected to the air cavities (30) inside the extension section (24).

4. The anti-edge corner impact metallized film capacitor according to claim 3, characterized in that, The extension (24) has a vent hole (241) on its outer side, and the vent hole (241) is connected to the air cavity (30) inside the extension (24).

5. The anti-edge corner impact metallized film capacitor according to claim 1, characterized in that, The outer corners of the longitudinal beam (21), transverse beam (22), vertical beam (23), and extension (24) are all rounded.

6. The anti-edge corner impact metallized film capacitor according to claim 1, characterized in that, The lengths of the longitudinal beams (21) and the transverse beams (22) are matched with the width and length of the main body (11), respectively; the length of the vertical beam (23) is greater than the height of the main body (11).

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