Capacitor convenient to install

Abstract

The utility model discloses a capacitor convenient to install, which comprises a shell provided with an accommodating cavity with an opening at one end, and potting materials are filled in the accommodating cavity to fix other components; the capacitor core is arranged in the accommodating cavity, and the capacitor core comprises two end surfaces; the two extraction electrodes are respectively connected with one end surface of the capacitor core and are led out of the shell from the opening; and the thickness of the end part, positioned outside the shell, of each extraction electrode is smaller than the thickness of other positions of the extraction electrode. According to the technical scheme of the embodiment of the utility model, the assembling flexibility of the electrodes of the capacitor can be improved, and various assembling requirements can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a capacitor which is easy to install. Background Art

[0002] With the rapid development of power electronics technology, metallized film capacitors are increasingly being used in industrial control, new energy, automotive electronics, rail transit, power grids, and other fields. At the same time, the limitations of capacitor mounting structures are becoming increasingly prominent. Current technical solutions generally use copper busbars as electrodes. The overall thickness of the electrodes depends on the thickness of the plate used. This thickness limitation reduces the flexibility of electrode assembly, making it difficult to meet assembly requirements. Utility Model Content

[0003] The present invention 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 present invention is to provide a capacitor that is easy to install, so as to improve the assembly flexibility of the capacitor electrodes and thus meet various assembly requirements.

[0004] To achieve the above-mentioned object, an embodiment of the present invention provides a capacitor that is easy to install, comprising:

[0005] The housing has a receiving cavity with one end open, and the receiving cavity is filled with a potting material to fix other components;

[0006] A capacitor core is disposed in the accommodating cavity, and the capacitor core includes two end surfaces;

[0007] Two lead-out electrodes, each of which is connected to one end surface of the capacitor core and is led out of the shell from the opening; the thickness of the end of each lead-out electrode located outside the shell is smaller than the thickness of other positions of the lead-out electrode.

[0008] According to the capacitor of the embodiment of the present invention, each of its lead electrodes is respectively connected to one end face of the capacitor core and is led out of the shell through the opening of the shell. In addition, the thickness of the end of each lead electrode located outside the shell is less than the thickness of the lead electrode at other positions, so that the end of the lead electrode located outside the shell has a larger elastic stroke, thereby facilitating its installation, improving the assembly flexibility of the electrode, and thus meeting various assembly requirements.

[0009] In addition, the capacitor that is easy to install according to the above embodiment of the present invention may also have the following additional technical features:

[0010] Optionally, one end of the lead-out electrode located outside the shell is bent outward to form a mounting portion, and the thickness of the mounting portion and the thickness at the bent position are both smaller than the thickness at other positions of the lead-out electrode.

[0011] Optionally, the two lead-out electrodes are led out from the same side of the opening, and an insulating film is provided between overlapping positions of the two lead-out electrodes.

[0012] Optionally, a fixing platform is provided on the outer side wall of the shell, and the fixing platform corresponds to the lead-out position of the lead-out electrode; a mounting hole is opened on the mounting portion, and two fixing members are provided on the fixing platform, and each fixing member corresponds to one of the mounting holes.

[0013] Optionally, the insulating film is folded outwards from between the two lead electrodes to cover the outer surface of the lead electrode farther from the potting material.

[0014] Optionally, at least one welding opening is provided at a position of each of the lead electrodes corresponding to the end surface of the capacitor core, and a welding strip is extended radially inward from the edge of the welding opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a capacitor that is easy to install according to one embodiment of the present invention;

[0016] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0017] Figure 3 Schematic diagram of a capacitor that is easy to install according to another embodiment of the present invention;

[0018] Figure 4 Schematic diagram of the structure of the lead-out electrode according to one embodiment of the present invention.

[0019] Explanation of reference numerals: housing 100 , potting material 110 , lead-out electrode 300 , welding port 310 , welding bar 320 , fixing platform 400 , insulating film 500 . DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present invention, examples of which 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 explain the present invention, and should not be construed as limiting the present invention.

[0021] 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. Rather, 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.

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Please refer to Figure 1 、 Figure 2 and Figure 4 The embodiment of the present invention provides a capacitor that is easy to install, including a housing 100 , a capacitor core, and two lead electrodes 300 .

[0024] Specifically, the housing 100 can be of any shape, such as a square, a column, etc. The housing 100 has a receiving cavity with one end open, which is used to accommodate other components. After the other components are placed, the cavity can be filled with potting material 110 to fix the other components.

[0025] The capacitor core is disposed in the receiving cavity and includes two end surfaces for circuit connection. It should be noted that the number of capacitor cores can be one, two, or any number of more than two. When there are multiple capacitor cores, the multiple capacitor cores are connected in parallel in the receiving cavity.

[0026] In the two extraction electrodes 300, each extraction electrode 300 is connected to an end face of the capacitor core, and then drawn out of the housing 100 through the opening. The portion of the extraction electrode 300 located outside the housing 100 can be used for the installation and circuit connection of the capacitor. In addition, the thickness of the end portion of each capacitor core located outside the housing 100 is less than the thickness of the extraction electrode 300 at other positions. Thus, the end portion of the extraction electrode 300 located outside the housing 100 can have a larger elastic stroke to improve its assembly flexibility, thereby meeting different assembly requirements. In addition, the dimensional tolerance of the capacitor installation can be increased, thereby increasing the applicable scope of the capacitor.

[0027] In one example, a certain pressure may be applied to the end of the lead-out electrode 300 away from the housing 100 so that the thickness of the end is smaller than that of other positions, or polishing may be performed, etc., which is not particularly limited.

[0028] In one embodiment of the present invention, one end of the lead-out electrode 300 located outside the housing 100 is bent outward to form a mounting portion, which can be used for capacitor mounting and circuit connection. Furthermore, the thickness of the mounting portion and the thickness of the bent portion are both smaller than the thickness of the lead-out electrode 300 at other locations.

[0029] It should be noted that, according to actual needs, the end of the lead-out electrode 300 located outside the shell 100 may have one or more bends. The mounting portion described in the present invention refers to the end of the lead-out electrode 300 away from the shell 100, and the "bending position" is the bending portion connected to the mounting portion.

[0030] Therefore, the thickness of the mounting portion and the thickness of its bending position are both smaller than the thickness of other positions of the lead-out electrode 300, so that the mounting portion can have greater elasticity, which not only increases the dimensional tolerance during capacitor installation and increases the applicable range of the capacitor, but also makes the mounting portion have a certain elasticity, thereby improving the assembly flexibility of the capacitor to meet different assembly requirements.

[0031] In one embodiment of the present invention, two lead-out electrodes 300 are led out from the same side of the opening. To prevent a short circuit between the two lead-out electrodes 300, an insulating film 500 is provided between the overlapping positions of the two lead-out electrodes 300. The insulating film 500 can be made of any insulating material. In one embodiment, the insulating film 500 is folded outward between the two lead-out electrodes 300 to cover the outer surface of the lead-out electrode 300 that is farther from the potting material 110, thereby preventing a short circuit caused by the lead-out electrode 300 being too close to other components. Furthermore, after the insulating film 500 covers the outer surface of the lead-out electrode 300 that is farther from the potting material 110, the end of the insulating film 500 can be inserted into the potting material 110 for fixation to prevent the insulating film 500 from shifting and affecting the insulation effect.

[0032] Please refer to Figure 3 In one embodiment of the present invention, when the two lead-out electrodes 300 are led out from the same side of the opening, a fixing platform 400 is provided on the outer wall of the shell 100, and the fixing platform 400 corresponds to the lead-out position of the lead-out electrode 300. A mounting hole is provided on the mounting portion to facilitate the locking between the capacitor and other components. The mounting hole can be of any shape, such as a round hole, a square hole, etc. Two fixing parts are provided on the fixing platform 400, and each fixing part corresponds to a mounting hole. Thus, when the capacitor is installed, the capacitor can be locked to a specified position and circuit connectivity can be achieved through a part that cooperates with the fixing part. In one example, the fixing part can be a nut, and the user can use a bolt to pass through the mounting hole on the mounting part of the lead-out electrode 300 and cooperate with the nut to achieve the locking of the capacitor.

[0033] Please refer to Figure 4 In one embodiment of the present invention, at least one welding opening 310 is provided at a position corresponding to the end surface of the capacitor core on the lead-out electrode 300. A welding strip 320 extends radially inward from the edge of the welding opening 310. The user can weld the welding strip 320 to the end surface of the capacitor core to achieve relative fixation between the lead-out electrode 300 and the capacitor core. In one example, there can be multiple welding openings 310 corresponding to each end surface to ensure the stability of the connection between the lead-out electrode 300 and the capacitor core. Similarly, there can be multiple welding strips 320 in each welding opening 310, and there is no special limitation on this.

[0034] 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 to 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 device or element referred to 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.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0037] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A capacitor that is easy to install, characterized in that: include: The housing has a receiving cavity with one end open, and the receiving cavity is filled with a potting material; A capacitor core is disposed in the accommodating cavity, and the capacitor core includes two end surfaces; Two lead-out electrodes, each of which is connected to an end face of the capacitor core and is led out of the shell through the opening; the thickness of the end of each lead-out electrode located outside the shell is smaller than the thickness of the lead-out electrode at a position other than the position located outside the shell.

2. The capacitor according to claim 1, wherein One end of the lead-out electrode located outside the shell is bent outward to form a mounting portion, and the thickness of the mounting portion and the thickness of the bent position are both smaller than the thickness of the lead-out electrode except the mounting portion and the bent position.

3. The capacitor according to claim 2, wherein: The two lead-out electrodes are led out from the same side of the opening, and an insulating film is provided between overlapping positions of the two lead-out electrodes.

4. The capacitor according to claim 3, wherein The outer wall of the shell is provided with a fixing platform, which corresponds to the lead-out position of the lead-out electrode; the mounting portion is provided with a mounting hole, and two fixing members are provided on the fixing platform, each of which corresponds to one of the mounting holes.

5. The capacitor according to claim 3, wherein The insulating film is folded outwards from between the two lead electrodes to cover the outer surface of the lead electrode that is farther away from the potting material.

6. The capacitor according to claim 1, wherein At least one welding opening is provided at a position of each of the lead electrodes corresponding to the end surface of the capacitor core, and a welding strip is extended radially inwardly from the edge of the welding opening.

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