Capacitor

Abstract

The utility model discloses a capacitor, which comprises a packaging shell, a capacitor core, a sealant and an extraction electrode, the packaging shell comprises a bottom and a side part surrounding the bottom, and the side part surrounds the bottom to form a containing cavity with an opening in one side; a reinforcing piece is arranged on the outer side wall of the long-edge side part of the packaging shell; the capacitor core is arranged in the packaging shell; the sealant is encapsulated in the packaging shell so as to fix the capacitor core; and the extraction electrode is connected with the capacitor core and is led out of the packaging shell. According to the utility model, the structural strength of the packaging shell can be enhanced, so that the stability of the capacitor is improved, and the problem of deformation of the packaging shell after being stressed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors. Background Art

[0002] Metallized film capacitors are increasingly used in industrial control, new energy, automotive electronics, rail transit, power grids and other fields, and the product performance requirements for metallized film capacitors are also getting higher and higher. In the relevant technology, metallized film capacitors include a packaging shell, a capacitor core, a lead electrode and a sealant; the capacitor core includes a plate, a dielectric and a metal layer sprayed on the two end faces of the plate, and the capacitor core is arranged in the packaging shell; the sealant is encapsulated in the packaging shell to fix the capacitor core, and the sealant is usually epoxy resin; the lead electrode is connected to the capacitor core and led out of the packaging shell, and the lead electrode is generally a lead, a welding piece or a busbar.

[0003] Since the packaging shell needs to be filled with epoxy resin, one surface of the packaging shell needs to be open to fill the epoxy resin, and the other surfaces are closed. The packaging shell structure itself is prone to deformation, and the long side adjacent to the open surface is also prone to further deformation when subjected to force. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, one purpose of the utility model is to provide a capacitor to enhance the structural strength of the packaging shell, thereby improving the stability of the capacitor and solving the problem of deformation of the packaging shell after being subjected to force.

[0005] In order to achieve the above-mentioned object, the first embodiment of the utility model provides a capacitor, comprising:

[0006] A packaging shell, the packaging shell comprising a bottom and a side portion surrounding the bottom, the side portion surrounding the bottom to form a receiving cavity with an opening on one side; a reinforcement piece is provided on an outer side wall of a long side portion of the packaging shell;

[0007] A capacitor core, the capacitor core being disposed in the packaging housing;

[0008] A sealant is poured into the packaging shell to fix the capacitor core;

[0009] The lead-out electrode is connected to the capacitor core and is led out of the packaging shell.

[0010] According to a capacitor of an embodiment of the utility model, the packaging shell includes a bottom and a side portion surrounding the bottom, and the side portion is surrounded by the bottom to form a accommodating cavity with an opening on one side; the outer side wall of the long side portion of the packaging shell is provided with a reinforcement member, so that the structural strength of the packaging shell can be enhanced, thereby improving the stability of the capacitor and solving the problem of deformation of the packaging shell after being subjected to force.

[0011] In addition, a capacitor according to the above embodiment of the utility model may also have the following additional technical features:

[0012] Optionally, the reinforcement member disposed on the outer wall of the long side of the packaging shell is a rib, and the rib is integrally formed with the packaging shell.

[0013] Specifically, the ribs are arranged in pairs, and at least two pairs of the ribs are arranged on each long side of the packaging shell.

[0014] Specifically, the ribs are configured in a triangular prism shape.

[0015] Optionally, the capacitor core is a metallized film capacitor core.

[0016] Optionally, the lead-out electrode includes a positive lead-out electrode and a negative lead-out electrode, the positive lead-out electrode is connected to the metal layer on one end surface of the capacitor core, and the negative lead-out electrode is connected to the metal layer on the other end surface of the capacitor core. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional combination diagram of an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of

[0019] Figure 3 Another three-dimensional combination diagram of an embodiment of the utility model.

[0020] Description of symbols

[0021] Package shell 1, bottom 11, side 12, accommodating cavity 13, capacitor core 2, sealant 3, lead-out electrode 4, reinforcement 5. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0024] like Figures 1 to 3 As shown, a capacitor according to an embodiment of the utility model includes a packaging shell 1, a capacitor core 2, a sealant 3 and a lead electrode 4.

[0025] The packaging shell 1 includes a bottom 11 and a side portion 12 surrounding the bottom 11, wherein the side portion 12 is surrounded by the bottom 11 to form a receiving cavity 13 with one side open, and the packaging shell 1 is in the shape of a rectangular parallelepiped with one side open. A reinforcement member 5 is provided on the outer side wall of the long side portion 12 of the packaging shell 1. The packaging shell 1 can be a plastic shell or a metal shell.

[0026] Optionally, the reinforcement member 5 disposed on the outer wall of the long side portion 12 of the packaging shell 1 is a rib, and the rib is integrally formed with the packaging shell 1. Specifically, the ribs are disposed in pairs, and at least two pairs of the ribs are disposed on each long side portion 12 of the packaging shell 1. The ribs are disposed in a triangular prism shape.

[0027] The capacitor core 2 is disposed in the packaging shell 1. Optionally, the capacitor core 2 is a metallized film capacitor core, and the capacitor core 2 comprises a plate, a dielectric, and a metal layer sprayed on two end surfaces of the plate.

[0028] The sealant 3 is filled in the packaging shell 1 to fix the capacitor core 2. The sealant 3 is usually epoxy resin.

[0029] The lead-out electrode 4 is connected to the capacitor core 2 and led out of the package shell 1. Optionally, the lead-out electrode 4 includes a positive lead-out electrode and a negative lead-out electrode, the positive lead-out electrode is connected to the metal layer on one end surface of the capacitor core 2, and the negative lead-out electrode is connected to the metal layer on the other end surface of the capacitor core 2.

[0030] A capacitor according to an embodiment of the utility model comprises a packaging shell 1 including a bottom 11 and a side portion 12 surrounding the bottom 11, wherein the side portion 12 is arranged around the bottom 11 to form a receiving cavity 13 with an opening on one side; a reinforcing member 5 is provided on the outer side wall of the long side portion 12 of the packaging shell 1, so that the structural strength of the packaging shell 1 can be enhanced, thereby improving the stability of the capacitor and solving the problem of deformation of the packaging shell 1 after being subjected to force.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0036] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A capacitor, characterized in that: include: A packaging shell, the packaging shell comprising a bottom and a side portion surrounding the bottom, the side portion surrounding the bottom to form a receiving cavity with an opening on one side; The outer side wall of the long side of the packaging shell is provided with a reinforcement piece; A capacitor core, the capacitor core being disposed in the packaging housing; A sealant is poured into the packaging shell to fix the capacitor core; An extraction electrode, the extraction electrode is connected to the capacitor core and is extracted outside the packaging shell; The reinforcing member arranged on the outer wall of the long side of the packaging shell is a rib, and the rib is integrally formed with the packaging shell.

2. A capacitor according to claim 1, characterized in that: The ribs are arranged in pairs, and at least two pairs of the ribs are arranged on each long side of the packaging shell.

3. A capacitor according to claim 1, characterized in that: The ribs are arranged in a triangular prism shape.

4. A capacitor according to claim 1, characterized in that: The capacitor core is a metallized film capacitor core.

5. A capacitor according to claim 1, characterized in that: The lead-out electrodes include a positive lead-out electrode and a negative lead-out electrode. The positive lead-out electrode is connected to a metal layer on one end surface of the capacitor core, and the negative lead-out electrode is connected to a metal layer on the other end surface of the capacitor core.

Images