Capacitor

Abstract

The utility model discloses a capacitor, which comprises a shell provided with an accommodating cavity with an opening at one end; a notch is formed in one side wall of the shell; the capacitor core is arranged in the accommodating cavity, and a potting material is filled between the capacitor core and the inner side wall of the shell; one end of each terminal is connected with the capacitor core, and the other end of each terminal penetrates out of the shell through the gap; and the two insulating parts are respectively sleeved on the two terminals, one ends of the insulating parts are clamped at the notches, and the other ends of the insulating parts extend outwards along the terminals. According to the technical scheme of the embodiment of the utility model, the use safety of the capacitor can be ensured while the assembly is facilitated to improve the space utilization rate.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, in particular to a capacitor. Background Art

[0002] With the rapid development of power electronics technology, metallized film capacitors are increasingly used in industrial control, new energy, automotive electronics, rail transit, power grids and other fields, and the requirements for the position of the capacitor terminal structure are becoming more diverse. In the current technical solution, the terminals of the capacitor are often designed to extend from the filling surface to overlap and assemble with the accessories. However, the above-mentioned lead-out method has relatively rigid requirements for the overlap structure inside the inverter, making it impossible to optimize the space utilization of the internal structure of the inverter, and the terminal lead-out area also requires additional space or the addition of insulating paper to meet the requirements of creepage distance and electrical clearance, sacrificing space utilization while also increasing costs. Utility Model Content

[0003] 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, the purpose of the utility model is to provide a capacitor that is easy to assemble to improve space utilization while ensuring the safety of the capacitor.

[0004] To achieve the above object, an embodiment of the utility model provides a capacitor, comprising:

[0005] A housing having a receiving cavity with an opening at one end; a notch is provided on one side wall of the housing;

[0006] A capacitor core is disposed in the accommodating cavity, and a potting material is filled between the capacitor core and the inner side wall of the shell;

[0007] Two terminals, one end of each terminal is connected to the capacitor core, and the other end of each terminal passes through the notch and out of the housing;

[0008] Two insulating members are respectively sleeved on the two terminals, and one end of the insulating member is engaged in the notch, and the other end extends outward along the terminal.

[0009] According to the capacitor of the embodiment of the utility model, the shell has a accommodating cavity with an opening at one end, the side wall of the shell is provided with a notch, the capacitor core is arranged in the accommodating cavity, and the capacitor core and the inner side wall of the shell are filled with potting material, one end of the two terminals is connected to the capacitor core, and the other end passes through the notch to the outside of the shell, thereby, the terminals are led out from the side wall of the shell, which makes the arrangement inside the inverter more convenient and improves the space utilization rate inside the inverter, and the insulating part is sleeved on the terminal, one end of which is engaged in the notch, and the other end extends outward along the terminal. Through the setting of the insulating part, on the basis of preventing the potting material from leaking from the notch, the safety of the capacitor can also be guaranteed.

[0010] In addition, a capacitor according to the above embodiment of the utility model may also have the following additional technical features:

[0011] Optionally, the number of the notches is two, and the two terminals pass through the two notches respectively.

[0012] Optionally, one end portion of the insulating member that is engaged with the notch is inserted into the shell, and a width of a portion of the insulating member that is inserted into the shell is greater than a width of the notch.

[0013] Optionally, a bending portion is provided at one end of the two terminals away from the housing, and the two bending portions are bent in opposite directions.

[0014] Optionally, the end of the insulating member extending outwardly extends to a bending position of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of a capacitor according to an embodiment of the utility model.

[0016] Description of reference numerals: housing 100 , notch 110 , potting material 120 , terminal 200 , bending portion 210 , insulating member 300 . DETAILED DESCRIPTION

[0017] 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.

[0018] 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.

[0019] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Please refer to Figure 1 The embodiment of the utility model provides a capacitor, including a housing 100 , a capacitor core, two terminals 200 and two insulating members 300 .

[0021] Specifically, the shell 100 can be a cylindrical structure, such as a square cylinder or a round cylinder, etc. The shell 100 has a accommodating cavity with one port for accommodating other components. A notch 110 is provided on one side wall of the shell 100, and the notch 110 is arranged close to the opening of the accommodating cavity. The notch 110 can be of any shape, such as circular, semicircular, square, strip, etc. It should be noted that the number of notches 110 can be one or two. When the number of notches 110 is two, the two notches 110 can be arranged in parallel, and the distance between the two notches 110 can be determined according to the actual implementation needs, and there is no special limitation on this.

[0022] The capacitor core is arranged in the accommodating cavity, and the potting material 120 is filled between the capacitor core and the inner side wall of the housing 100. After the potting material 120 cools down, the relative position between the capacitor core and the housing 100 can be fixed to avoid contact between the capacitor core and the housing 100. One end of each terminal 200 is connected to the capacitor core, and the other end passes through the notch 110 outside the housing 100 to overlap and assemble with the counterpart. It should be understood that the width of the notch 110 can be slightly larger than the width of the terminal 200 to facilitate the installation of the terminal 200.

[0023] The two insulating members 300 are respectively sleeved on the two terminals 200, and one end of the insulating member 300 is engaged in the notch 110, that is, an interference fit is achieved between the end of the insulating member 300 and the notch 110, thereby preventing leakage from the notch 110 when filling the potting material 120. The other end of the insulating member 300 extends outward along the terminal 200 to ensure the insulation performance between the terminals 200 or between the terminal 200 and other components in the installation environment.

[0024] It should be noted that the extension length of the insulating member 300 can be determined according to the relative positions of the other components and the capacitor in the actual installation environment, so as to ensure that the components do not interfere with each other. In addition, the insulating member 300 can be made of insulating materials such as plastic, silica gel or powder encapsulation material, and those skilled in the art will not make any special restrictions on this.

[0025] Therefore, through the capacitor provided by the embodiment of the utility model, the terminal 200 is led out from the side wall of the housing 100, which is convenient for users to perform overlapping assembly, and the arrangement inside the inverter is also more convenient, thereby improving the space utilization rate inside the inverter. In addition, through the provision of the insulating member 300, the potting material 120 is prevented from leaking from the notch 110, and the safety of the capacitor can be ensured.

[0026] In one embodiment of the utility model, the number of the notches 110 can be two, and the two terminals 200 respectively pass through the two notches 110, so as to avoid the situation where the distance between the terminals 200 is too close, which reduces the safety, or the width of the notch 110 is too large and difficult to block.

[0027] In one example, one end portion of the insulating member 300 that is engaged at the notch 110 is inserted into the shell 100, and the width of the portion inserted into the shell 100 is greater than the width of the notch 110. This can prevent the insulating member 300 from escaping from the notch 110 under the action of external force, thereby ensuring the effectiveness of the insulating member 300 in sealing the notch 110.

[0028] In one embodiment of the utility model, a bending portion 210 is provided at one end of the two terminals 200 away from the housing 100, and the two bending portions 210 are bent in opposite directions. Thus, the user can install the capacitor through the bending portion 210 to ensure the contact area between the terminal 200 and the fitting, thereby ensuring the assembly effect. Furthermore, a through hole can be opened on each bending portion 210, through which the contact area between the welding material and the terminal 200 can be increased, thereby improving the stability of the capacitor assembly.

[0029] Based on the above embodiment, one end of the insulating member 300 extending outwardly extends to the bending point of the terminal 200, that is, the position connected to the bending portion 210, thereby ensuring the insulation performance between the two terminals 200 or between the terminal 200 and other components.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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 housing having a receiving cavity with an opening at one end; a notch is provided on one side wall of the housing; A capacitor core is disposed in the accommodating cavity, and a potting material is filled between the capacitor core and the inner side wall of the shell; Two terminals, one end of each terminal is connected to the capacitor core, and the other end of each terminal passes through the notch and out of the housing; Two insulating members are respectively sleeved on the two terminals, and one end of the insulating member is engaged in the notch, and the other end extends outward along the terminal.

2. The capacitor according to claim 1, characterized in that The number of the notches is two, and the two terminals pass through the two notches respectively.

3. The capacitor according to claim 2, characterized in that One end portion of the insulating member that is engaged with the notch is inserted into the shell, and the width of the portion of the insulating member that is inserted into the shell is greater than the width of the notch.

4. The capacitor according to claim 1, characterized in that A bending portion is arranged at one end of the two terminals away from the housing, and the two bending portions are bent in opposite directions.

5. The capacitor according to claim 4, characterized in that One end of the insulating member extending outwardly extends to a bending position of the terminal.

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