A capacitor structure

Abstract

The utility model discloses a capacitor structure, which includes a capacitor body and a shielding support; the shielding support includes a metal plate and a plastic part, the metal plate is arranged on the capacitor body, the plastic part is integrally formed on the metal plate and has a convex block protruding from one side surface of the metal plate in the thickness direction, and the convex block is used to support a PCB board. The capacitor structure can reduce assembly procedures and reduce capacitor costs.

Description

Technical Field

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

[0002] Film capacitors are widely used in electronic equipment, industrial control, automobiles and other fields. In some capacitor structures, a metal plate is required between the capacitor and the matching PCB substrate to shield the electrical signal interference, and a plastic part is required to support the PCB substrate. The capacitor structure in the related art needs to be assembled and set separately, which increases the assembly process, the number of parts, and the cost is high. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the above technology at least to a certain extent. To this end, one purpose of the utility model is to provide a capacitor structure that can reduce assembly processes and reduce capacitor costs.

[0004] To achieve the above-mentioned purpose, the utility model proposes a capacitor structure, which includes a capacitor body and a shielding support member; the shielding support member includes a metal plate and a plastic member, the metal plate is arranged on the capacitor body, the plastic member is integrally formed on the metal plate and has a protrusion protruding from one side surface of the metal plate in the thickness direction, and the protrusion is used to support the PCB board.

[0005] According to a capacitor structure of the utility model, a plastic part and a metal plate are integrally formed, a protrusion is provided on the plastic part for supporting a PCB board, and the metal plate is provided on a capacitor body. This can simplify the assembly process of the capacitor body and the PCB board, reduce the number of parts, improve the overall connection strength of the shielding support, and reduce the cost of the capacitor.

[0006] In addition, the capacitor structure proposed in the present invention may also have the following additional technical features:

[0007] Optionally, the protrusion is arranged on a surface of a side of the metal plate facing away from the capacitor body.

[0008] Optionally, the metal plate has a through hole in the thickness direction, and the protrusion passes through the through hole toward a side surface of the metal plate away from the capacitor body.

[0009] Furthermore, an anti-drop structure is provided between the protrusion and the metal plate to prevent the protrusion from falling off the metal plate or rotating relative to the metal plate.

[0010] Specifically, the anti-slip structure includes two anti-slip bosses, at least one positioning column and at least one positioning hole;

[0011] The two anti-slip bosses are arranged at opposite ends of the through hole in a one-to-one correspondence;

[0012] The positioning hole is provided in the metal plate and penetrates through the metal plate in the thickness direction;

[0013] The positioning column is inserted into the positioning hole and two ends thereof are connected to the two anti-slip bosses in a one-to-one correspondence.

[0014] Specifically, the anti-slip structure includes two anti-slip bosses, at least one positioning column and at least one positioning groove;

[0015] The two anti-slip bosses are arranged at opposite ends of the through hole in a one-to-one correspondence;

[0016] The positioning groove is provided on the metal plate and its opening faces one of the anti-slip bosses;

[0017] The positioning column is inserted into the positioning groove and connected to the anti-dropping boss opposite to the positioning groove.

[0018] More specifically, the anti-drop boss, the positioning column and the plastic part are integrally formed.

[0019] Furthermore, there are a plurality of positioning holes, and the plurality of positioning holes are distributed at intervals along the circumference of the through hole, and the number of the positioning posts is the same as the number of the positioning holes and corresponds one to one.

[0020] Optionally, the protrusions include at least two, and the at least two protrusions are arranged on the metal plate at intervals.

[0021] Optionally, a cross section of the protrusion perpendicular to the protrusion height is circular, elliptical or polygonal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a capacitor structure according to an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of a shielding support member according to an embodiment of the present utility model;

[0024] Figure 3 A schematic diagram of a shielding support member from another perspective of an embodiment of the utility model;

[0025] Figure 4 This is an exploded view of the shielding support member according to an embodiment of the present utility model.

[0026] Description of labels:

[0027] Capacitor body 1 , shielding support 2 , metal plate 21 , through hole 211 , plastic part 22 , bump 221 , PCB board 3 , anti-slip structure 23 , anti-slip boss 231 , positioning column 232 , positioning hole 233 . DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] The following is combined with Figure 1-Figure 4 The capacitor structure according to the embodiment of the utility model is described in detail, including how the metal plate is connected to the capacitor body, and how the bump is connected to the PCB board.

[0031] like Figure 1 As shown, a capacitor structure according to an embodiment of the utility model includes a capacitor body 1 and a shielding support member 2 .

[0032] Specifically, the shielding support member 2 includes a metal plate 21 and a plastic member 22. The metal plate 21 is arranged on the capacitor body 1. The plastic member 22 is integrally formed on the metal plate 21 and has a protrusion 221 protruding from one side surface of the metal plate 21 in the thickness direction. The protrusion 221 is used to support the PCB board 3.

[0033] That is to say, the plastic part 22 for supporting the PCB board 3 and the metal plate 21 for shielding the interference of the electric signal are integrally formed, so that the assembly of parts can be reduced.

[0034] Therefore, according to a capacitor structure of the utility model, a plastic part 22 and a metal plate 21 are integrally formed, the plastic part 22 is provided with a protrusion 221 for supporting the PCB board 3, and the metal plate 21 is arranged on the capacitor body 1, which can simplify the assembly process of the capacitor body 1 and the PCB board 3, reduce the number of parts, improve the overall connection strength of the shielding support 2, and reduce the cost of the capacitor.

[0035] The plastic component 22 can be integrally formed on the metal plate 21 by injection molding.

[0036] The capacitor body 1 can be an existing capacitor, such as a busbar connected to a plurality of capacitor cores, and separated by insulating paper in the overlapping area to assemble the busbar, the plurality of capacitor cores and the insulating paper into an integrated unit to complete the capacitor element assembly. The capacitor element assembly is then accommodated in the housing cavity of the shell, and then a filling resin in a liquid phase is injected into the housing cavity from the opening of the shell to fill the space between the capacitor element assembly and the shell with the filling resin; if the filling resin is injected, the filling resin in the shell can be hardened, and the capacitor element assembly is fixed relative to the shell by the hardened filling resin.

[0037] like Figure 2 and Figure 3 As shown, the shielding support member 2 according to the embodiment of the present invention includes a plastic member 22 and a metal plate 21 .

[0038] Specifically, the metal plate 21 is formed into a horizontally extending plate shape, and the metal plate 21 can be an aluminum plate or other metal plates with shielding function. The protrusion 221 of the plastic part 22 is arranged on the side surface of the metal plate 21 away from the capacitor body 1. In this way, the protrusion 221 can support the PCB board.

[0039] More specifically, the metal plate 21 has a through hole 211 in the thickness direction, and the protrusion 221 passes through the through hole 211 toward a surface of the metal plate 21 facing away from the capacitor body 1 . This makes it easy to mold the plastic part 22 on the metal plate 21 .

[0040] Combination Figure 4 In order to prevent the plastic part 22 from falling off the metal plate 21 or rotating relative to the metal plate 21 , an anti-falling structure 23 is provided between the protrusion 221 and the metal plate 21 to limit the protrusion 221 from falling off the metal plate 21 or rotating relative to the metal plate 21 .

[0041] Specifically, the anti-slip structure 23 includes two anti-slip bosses 231, at least one positioning column 232 and at least one positioning hole 233; the two anti-slip bosses 231 are arranged at opposite ends of the through hole 211 in a one-to-one correspondence; the positioning hole 233 is arranged in the metal plate 21 and penetrates in the thickness direction; the positioning column 232 is inserted in the positioning hole 233 and the two ends are connected to the two anti-slip bosses 231 in a one-to-one correspondence. It can be understood that the provision of the anti-slip bosses 231 can prevent the protrusion 221 from falling off the metal plate 21, and the positioning column 232 is inserted in the positioning hole 233 to prevent the plastic part 22 from rotating relative to the metal plate 21, thereby preventing the plastic part 22 from rotating and falling off.

[0042] The anti-drop boss 231 and the positioning column 232 are integrally formed with the plastic part 22 . In this way, the plastic part 22 can be integrally formed with the metal plate 21 .

[0043] Furthermore, there are a plurality of positioning holes 233, which are spaced apart along the circumference of the through hole 211, and the number of positioning posts 232 is the same as the number of positioning holes 233 and corresponds one to one. Figure 4 As shown, three positioning holes 233 and three positioning posts 232 are provided, which can better prevent the plastic part 22 from rotating and falling off.

[0044] In addition, the height of the positioning column 232 can be the same as the depth of the positioning hole 233 , so that the two anti-slip bosses 231 can abut against two side surfaces of the metal plate 21 in the thickness direction.

[0045] In other examples, the anti-slip structure 23 can be a groove and positioning column matching structure, for example, the anti-slip structure includes two anti-slip bosses, at least one positioning column and at least one positioning groove; the two anti-slip bosses are arranged at the opposite ends of the through hole in a one-to-one correspondence; the positioning groove is arranged on the metal plate 21 and the opening faces one of the anti-slip bosses; the positioning column is inserted into the positioning groove and connected to the anti-slip boss opposite to the positioning groove.

[0046] As for the bumps 221 , the bumps 221 include at least two, and at least two bumps 221 are arranged at intervals on the metal plate 21 . In this way, the PCB board 3 can be supported stably.

[0047] The cross section of the protrusion 221 perpendicular to the protrusion height is circular, elliptical or polygonal. Specifically, when the cross section of the protrusion 221 perpendicular to the protrusion height is circular, the protrusion 221 may be cylindrical, conical or truncated cone, etc.; when the cross section of the protrusion 221 perpendicular to the protrusion height is elliptical, the protrusion 221 may be elliptical cylinder, elliptical cone or elliptical cone, etc.; when the cross section of the protrusion 221 perpendicular to the protrusion height is polygonal, the protrusion 221 may be square column, prism, etc.

[0048] In addition, the plastic part 22 can be a thermoplastic material such as PPS, PC, PBT, etc.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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 structure, characterized in that: It includes a capacitor body and a shielding support member; the shielding support member includes a metal plate and a plastic member, the metal plate is arranged on the capacitor body, the plastic member is integrally formed on the metal plate and has a protrusion protruding from one side surface of the metal plate in the thickness direction, and the protrusion is used to support the PCB board.

2. The capacitor structure according to claim 1, wherein: The protrusion is arranged on a surface of the metal plate which is away from the capacitor body.

3. The capacitor structure according to claim 1, wherein: The metal plate has a through hole in the thickness direction, and the protrusion passes through the through hole toward a surface of the metal plate that is away from the capacitor body.

4. The capacitor structure according to claim 3, characterized in that An anti-drop structure is provided between the protrusion and the metal plate to prevent the protrusion from falling off the metal plate or rotating relative to the metal plate.

5. The capacitor structure according to claim 4, characterized in that The anti-slip structure includes two anti-slip bosses, at least one positioning column and at least one positioning hole; The two anti-slip bosses are arranged at opposite ends of the through hole in a one-to-one correspondence; The positioning hole is provided in the metal plate and penetrates through the metal plate in the thickness direction; The positioning column is inserted into the positioning hole and two ends thereof are connected to the two anti-slip bosses in a one-to-one correspondence.

6. The capacitor structure according to claim 4, characterized in that The anti-slip structure includes two anti-slip bosses, at least one positioning column and at least one positioning groove; The two anti-slip bosses are arranged at opposite ends of the through hole in a one-to-one correspondence; The positioning groove is provided on the metal plate and its opening faces one of the anti-slip bosses; The positioning column is inserted into the positioning groove and connected to the anti-slip boss opposite to the positioning groove.

7. The capacitor structure according to claim 5 or 6, characterized in that: The anti-drop boss, the positioning column and the plastic part are integrally formed.

8. The capacitor structure according to claim 5, wherein: There are a plurality of positioning holes, and the plurality of positioning holes are distributed at intervals along the circumference of the through hole. The number of the positioning posts is the same as the number of the positioning holes and corresponds one to one.

9. The capacitor structure according to claim 1, wherein: The protrusions include at least two, and the at least two protrusions are arranged on the metal plate at intervals.

10. The capacitor structure according to claim 1, wherein: The cross section of the protrusion perpendicular to the protrusion height is circular, elliptical or polygonal.

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