Capacitor with pin protection

Abstract

The utility model discloses a capacitor with pin protection. The capacitor comprises a housing which is internally provided with a core, a busbar and a potting material. The core is fixed in the shell through a potting material; the power supply is electrically connected with an external circuit through a busbar; the busbar extends out of the shell from the extending potting material, the extending part is a pin, and the pin is locally sleeved with a protection piece; the protection piece is sleeved on the pin; the protection piece is a cube, a notch is partially formed in the cube, the pin penetrates out of one face of the cube through the notch, and the penetrating-out position and the cube protrude to form a supporting foot. According to the utility model, the pins of the capacitor are protected by the protector, so that the pins are not easy to deform or break during production and transportation of the capacitor.

Description

Technical Field

[0001] The utility model relates to the field of capacitors, in particular to a capacitor with pin protection. Background Art

[0002] Film capacitors are widely used in electronic equipment, industrial control, automobiles and other fields. Film capacitors are generally composed of capacitor core (including plates, dielectrics and metal layers sprayed on both end faces), lead electrodes (usually leads, solder tabs or busbars), packaging shells, filling resins (such as epoxy resins), etc.

[0003] In some capacitor structures, the lead electrodes are some thin and long terminals that extend directly out of the filling resin. The thin and long terminals extend vertically out of the filling resin, which is easy to deform or even break during production and transportation, resulting in defective products. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the above technology at least to a certain extent. To this end, the purpose of the utility model is to provide a capacitor with pin protection measures.

[0005] To achieve the above object, an embodiment of the utility model provides a capacitor with pin protection, comprising:

[0006] Shell: contains core, busbar and potting material;

[0007] Core: fixed in the shell by potting material; electrically connected to the external circuit through the busbar;

[0008] Busbar: extends out of the housing from the potting material, the extended part is the pin, and the pin is partially covered with a protective piece;

[0009] Protective member: sleeved on the pin; the protective member is a cube, a notch is formed locally in the cube, the pin passes through the notch and goes out from one side of the cube, and at the position where the pin passes out, a protrusion on the cube forms a supporting foot.

[0010] According to the capacitor with pin protection in the embodiment of the utility model, the pins are protected by the protective member, so that the pins of the capacitor are not easily deformed or broken during production and transportation.

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

[0012] Optionally, the pin has a rectangular cross-section, is bent to form a first pin segment and a second pin segment that are connected to but not coaxially, and the two pin segments are connected by a bent segment; the first pin segment, the bent segment and part of the second pin segment are within the notch.

[0013] Optionally, the protective member is provided with a notch on one side which is recessed inward to form a groove, one end of the groove passes through a side of the protective member close to the core; the other end stops inside the protective member and is connected to the outside through a connecting hole with a smaller cross-sectional area than the groove and in the same direction as the groove.

[0014] Optionally, the supporting foot is truncated cone-shaped, and the bottom area of ​​one end close to the core is larger than the bottom area of ​​the other end.

[0015] Furthermore, a tapered hole is formed in the supporting foot for the pin to pass through. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall structural view according to an embodiment of the utility model;

[0017] Figure 2 It is a structural exploded view according to one embodiment of the utility model;

[0018] Figure 3 The figure is an angle view of a protective member according to an embodiment of the present invention.

[0019] Description of labels:

[0020] Shell 1

[0021] Busbar 2

[0022] Pin 21 First pin segment 211 Second pin segment 212 Bend segment 213

[0023] Protective member 22 Notch 221 Support foot 222

[0024] The groove 223 is connected to the hole 224 . DETAILED DESCRIPTION

[0025] 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.

[0026] Since the capacitor with pin protection is provided in the utility model, the pin is protected by the protection piece, so that the pin of the capacitor is not easily deformed or broken during production and transportation.

[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] 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.

[0029] Existing capacitors, such as those used in energy-saving vehicles and power systems, have high withstand voltage and capacity, so the capacitor volume is also large. However, due to actual usage scenarios, the exposed pins of the capacitors are not made too thick. Therefore, relative to the volume of the capacitor, the pins are easily deformed by external forces at various links.

[0030] Some capacitors also have protective covers on the pins, but this type of protective cover either fixes the relative position of the two pins at the same time, or simply puts on a cylindrical protective cover; the former has a narrow scope of application, and the protective cover must be replaced if the pin spacing changes, while the latter is generally put on separately after manufacturing is completed, and is not firmly combined with the capacitor itself, and may fall off before use.

[0031] In view of these problems, the utility model provides a structure on the pin that firmly fixes and effectively protects the pin.

[0032] Figures 1 to 3 A capacitor with pin protection according to an embodiment of the utility model comprises:

[0033] Shell 1: contains core, busbar 2 and potting material;

[0034] Core: fixed in the housing 1 by potting material; electrically connected to the external circuit through the busbar 2;

[0035] Busbar 2: extends out of the potting material and out of the housing 1, the protruding part is a pin 21, and a protective member 22 is partially provided on the pin 21;

[0036] Protective member 22: sleeved on pin 21; protective member 22 is a cube, with a notch 221 formed locally therein, through which pin 21 passes through one side of the cube, and at the position where the pin passes through, a protrusion on the cube forms a supporting foot 222, the cross-sectional size of protective member 22 greatly exceeds the size of the original pin 21, and the notch 221 is provided so that after the capacitor is installed in the circuit, there is still a portion that can be contacted by the detection probe, thereby both reinforcing the pin 21 of the capacitor and retaining the detectability of the component.

[0037] In the capacitor of the present invention, when the protective member 22 is sleeved on the pin 21, a part of it is also fixed by the potting material, so there is no problem of falling off. The structural characteristics of the protective member 22 itself can make the part of the pin 21 have better shear damage resistance during use. This is for resisting the force between the component and the circuit board caused by continuous vibration under vehicle working conditions, and preventing the component from falling off during use.

[0038] In some embodiments, the pin 21 has a rectangular cross-section, and the pin 21 is bent to form a first pin segment 211 and a second pin segment 212 that are oriented toward but not coaxially, and the two pin segments are connected by a bent segment 213; the first pin segment 211, the bent segment 213 and part of the second pin segment 212 are within the notch 221, and this bent end fixes the capacitor. Under the action of an extreme external force, even if the capacitor is slightly displaced relative to the circuit board, the elongated distance can be compensated by straightening the bent segment 213 without immediately damaging the component or circuit board structure.

[0039] In some embodiments, the protective member 22 is provided with one side of the notch 221, which is indented inward to form a groove 223. One end of the groove 223 passes through the side of the protective member 22 close to the core; the other end stops inside the protective member 22, and is connected to the outside through a connecting hole 224 with a cross-sectional area smaller than the groove 223 and in the same direction as the groove 223. The purpose of providing the groove 223 is to reduce the resistance of the protective member 22 when it is placed in the potting material. Since the potting material is still in a liquid state when it is placed, it will have buoyancy on the placed protective member 22, reducing the cross-section of the protective member 22. At the same time, the surface area immersed in the potting material is increased through the groove 223, and the liquid tension of the potting material is used to prevent the submerged protective member 22 from floating or shifting, thereby improving production efficiency.

[0040] Optionally, the support foot 222 is a truncated cone, and the bottom area of ​​one end close to the core is larger than the bottom area of ​​the other end. Further, a tapered hole for the pin 21 to pass through is formed in the support foot 222, and the tapered hole facilitates the insertion of the core.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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. Capacitor with pin protection, characterized in that: include Shell: contains core, busbar and potting material; Core: fixed in the shell by potting material; electrically connected to the external circuit through the busbar; Busbar: extends out of the housing from the potting material, the extended part is the pin, and the pin is partially covered with a protective piece; Protective member: sleeved on the pin; the protective member is a cube, a notch is formed locally in the cube, the pin passes through the notch and goes out from one side of the cube, and at the position where the pin passes out, a protrusion on the cube forms a supporting foot.

2. The capacitor with pin protection according to claim 1, characterized in that: The pin has a rectangular cross section and is bent to form a first pin segment and a second pin segment that are connected to but not coaxially, and the two pin segments are connected by a bent segment; the first pin segment, the bent segment and part of the second pin segment are within the notch.

3. The capacitor with pin protection according to claim 1, characterized in that: The protective member is provided with a notch on one side which is sunken inward to form a groove, one end of which passes through a side of the protective member close to the core; the other end stops inside the protective member and is connected to the outside through a connecting hole with a cross-sectional area smaller than the groove and in the same direction as the groove.

4. The capacitor with pin protection according to claim 1, characterized in that: The supporting foot is in a truncated cone shape, and the bottom area of ​​one end close to the core is larger than the bottom area of ​​the other end.

5. The capacitor with pin protection as claimed in claim 4, characterized in that: A tapered hole for the pin to pass through is formed in the supporting foot.

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