Capacitor

Abstract

The utility model discloses a capacitor, which comprises a packaging shell, a capacitor core, a sealant, an extraction electrode and a positioning piece, the capacitor core is arranged in the packaging shell; the sealant is encapsulated in the packaging shell so as to fix the capacitor core; the extraction electrode is connected with the capacitor core and is led out of the packaging shell; the positioning piece is arranged on the packaging shell, the positioning piece is detachably connected relative to the packaging shell, and a positioning structure for positioning the extraction electrode is arranged on the positioning piece. According to the utility model, the extraction electrode and the packaging shell can be assembled simply and conveniently, the production efficiency is improved, and the production cost is reduced.

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. At the same time, the product performance requirements for metallized film capacitors are getting higher and higher, and the structure is becoming more and more complex. In the related 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] The lead electrode and the package shell are fixed by the positioning tooling, and then filled with resin to solidify. With the development of new energy vehicles, the structure of the package shell is becoming more and more complex. Sometimes the position of the lead electrode is difficult to locate by the tooling or the positioning tooling is very complex. Sometimes the lead electrode is blocked by the package shell. To realize the assembly of the lead electrode and the package shell, multiple parts of the tooling need to be screwed together. The whole assembly process is very complicated, with low production efficiency and high production cost. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the above technology to a certain extent. To this end, one purpose of the utility model is to provide a capacitor so that the lead-out electrode and the packaging shell can be assembled simply and conveniently, thereby improving production efficiency and reducing production costs.

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

[0006] Encapsulation shell;

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

[0008] A sealant, wherein the sealant is filled in the packaging shell to fix the capacitor core;

[0009] An extraction electrode, the extraction electrode is connected to the capacitor core and is extracted outside the packaging shell;

[0010] A positioning member is arranged on the packaging shell, the positioning member is detachably connected to the packaging shell, and a positioning structure for positioning the lead-out electrode is provided on the positioning member.

[0011] According to a capacitor of an embodiment of the utility model, since a positioning piece is arranged on the packaging shell, the positioning piece is detachably connected with respect to the packaging shell, and a positioning structure for positioning the lead-out electrode is provided on the positioning piece, when assembling the lead-out electrode and the packaging shell, it is only necessary to first fix the positioning piece on the packaging shell, and then fix the lead-out electrode with the positioning structure of the positioning piece, thereby making the assembly of the lead-out electrode and the packaging shell simple and convenient, improving production efficiency and reducing production costs.

[0012] In addition, a capacitor according to the above embodiment of the utility model may also have the following additional technical features:

[0013] Optionally, a fixing pin is provided on the positioning member, and a fixing hole is provided on the packaging shell, and the fixing pin of the positioning member is inserted into the fixing hole of the packaging shell to fix the positioning member.

[0014] Optionally, the positioning structure of the positioning member includes positioning the lead-out electrode by means of screws, buckles or pin holes.

[0015] Specifically, a positioning pin is provided on the positioning member, a positioning hole is provided on the lead-out electrode, and the positioning pin is inserted into the positioning hole to position the lead-out electrode.

[0016] Optionally, the positioning member is provided with a positioning column for positioning the busbar of the opponent member.

[0017] Optionally, a support member is provided on the packaging shell, and the positioning member abuts against the support member.

[0018] 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 one end of the capacitor core, and the negative lead-out electrode is connected to the other end of the capacitor core.

[0019] Optionally, the capacitor core is a metallized film capacitor core. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional combination diagram of an embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional exploded view of an embodiment of the utility model;

[0022] Figure 3 Another exploded perspective view of an embodiment of the present utility model;

[0023] Figure 4 for Figure 3 A partial enlarged view of .

[0024] Description of symbols

[0025] Package shell 1, fixing hole 11, support member 12, capacitor core 2, sealant 3, lead-out electrode 4, positioning hole 41, positioning member 5, fixing pin 51, positioning pin 52, positioning column 53. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] like Figures 1 to 4 As shown, a capacitor according to an embodiment of the utility model includes a packaging shell 1, a capacitor core 2, a sealant 3, a lead electrode 4 and a positioning member 5.

[0029] The capacitor core 2 is arranged in the packaging shell 1. Optionally, the capacitor core 2 is a metallized film capacitor core, which includes a plate, a dielectric and a metal layer sprayed on two end surfaces of the plate; the packaging shell 1 can be a plastic shell or a metal shell.

[0030] The sealant 3 is filled in the packaging shell 1 to fix the capacitor core 2. The sealant 3 is usually epoxy resin.

[0031] 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 one end of the capacitor core 2, and the negative lead-out electrode is connected to the other end of the capacitor core 2.

[0032] The positioning member 5 is arranged on the packaging shell 1, and the positioning member 5 is detachably connected to the packaging shell 1. Optionally, a fixing pin 51 is provided on the positioning member 5, and a fixing hole 11 is provided on the packaging shell 1. The fixing pin 51 of the positioning member 5 is inserted into the fixing hole 11 of the packaging shell 1 to fix the positioning member 5. The positioning member 5 is provided with a positioning structure for positioning the lead-out electrode 4. Optionally, the positioning structure of the positioning member 5 includes positioning the lead-out electrode 4 by screws, buckles or pin holes. Specifically, a positioning pin 52 is provided on the positioning member 5, and a positioning hole 41 is provided on the lead-out electrode 4. The positioning pin 52 is inserted into the positioning hole 41 to position the lead-out electrode 4. The positioning member 5 can be made of metal or plastic.

[0033] In a capacitor of the embodiment of the utility model, since the positioning member 5 is arranged on the packaging shell 1, the positioning member 5 is detachably connected with respect to the packaging shell 1, and a positioning structure for positioning the lead-out electrode 4 is provided on the positioning member 5, when assembling the lead-out electrode 4 and the packaging shell 1, it is only necessary to first fix the positioning member 5 on the packaging shell 1, and then fix the positioning structure of the positioning member 5 to the lead-out electrode 4, thereby making the assembly of the lead-out electrode 4 and the packaging shell 1 simple and convenient, improving production efficiency and reducing production costs.

[0034] Optionally, the positioning member 5 is provided with a positioning column 53 for positioning the busbar of the counterpart, further simplifying the assembly process of the capacitor and the controller. The packaging shell 1 is provided with a support member 12, and the positioning member 5 abuts against the support member 12 to further enhance the stability of the positioning member 5.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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: Encapsulation shell; 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; A positioning member is arranged on the packaging shell, the positioning member is detachably connected to the packaging shell, and a positioning structure for positioning the lead-out electrode is provided on the positioning member.

2. A capacitor according to claim 1, characterized in that: The positioning member is provided with a fixing pin, and the packaging shell is provided with a fixing hole. The fixing pin of the positioning member is inserted into the fixing hole of the packaging shell to fix the positioning member.

3. A capacitor according to claim 1, characterized in that: The positioning structure of the positioning member includes positioning the lead-out electrode by means of screws, buckles or pin holes.

4. A capacitor according to claim 3, characterized in that: The positioning member is provided with a positioning pin, the lead-out electrode is provided with a positioning hole, and the positioning pin is inserted into the positioning hole to position the lead-out electrode.

5. A capacitor according to claim 1, characterized in that: The positioning member is provided with a positioning column for positioning the busbar of the opponent member.

6. A capacitor according to claim 1, characterized in that: A supporting piece is provided on the packaging shell, and the positioning piece abuts against the supporting piece.

7. A capacitor according to claim 1, characterized in that: The lead-out electrode includes a positive lead-out electrode and a negative lead-out electrode. The positive lead-out electrode is connected to one end of the capacitor core, and the negative lead-out electrode is connected to the other end of the capacitor core.

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

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