Capacitor convenient to install

Abstract

The utility model relates to a capacitor convenient to install, which comprises a plastic shell with an opening and a capacitor core, the capacitor core is an inner string core, the inner string core is encapsulated in an inner cavity of the plastic shell through a packaging material, metal spraying surfaces at the left end and the right end of the inner string core are electrically connected with leading-out terminals, and the leading-out terminals are electrically connected with the plastic shell. At least two leading-out terminals penetrate through the opening and extend out of the plastic shell, at least one side wall of the plastic shell horizontally extends outwards to form a connecting lug, and the connecting lug is provided with an adjusting long hole for connection. The capacitor core of the capacitor adopts the inner series core, the performance of the capacitor core can be improved under the condition of the same size, the product is safer and more reliable, the adjusting long hole in the plastic shell can be used for connecting and installing the capacitor and the installing plate, the installing position can be finely adjusted in a sliding manner, the adjustment is accurate, convenient and rapid, and the production efficiency is improved. And the installation efficiency and quality can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of capacitors, in particular to a capacitor which is mainly used for a fan and is convenient to install. Background Art

[0002] At present, the structure of a capacitor mainly includes a plastic shell and a core group built in the inner cavity of the plastic shell. The core group usually includes a plurality of capacitor cores, and the plurality of capacitor cores are connected in series and parallel in an external series connection mode. Therefore, under the same performance requirements, a larger plastic shell is required to accommodate the plurality of capacitor cores. Finally, it is necessary to connect several capacitor cores in series and parallel in the plastic shell. The increased capacitor cores increase the volume of the plastic shell, improve the requirements for the installation environment of the capacitor, and currently, when installing the capacitor, the plastic shell is provided with connecting ears, and after the circular holes on it are aligned with the circular holes on the mounting plate, screws are used to pass through the two circular holes to finally realize the installation and fixation. However, since the screws and the two circular holes can only be coaxially matched, the position of the capacitor cannot be finely adjusted after the screws pass through the two circular holes, increasing the installation difficulty of the capacitor. Therefore, the applicant provides a new solution for the capacitor through the improvement and perfection of the existing technology for consumers to choose and use. Summary of the Invention

[0003] The purpose of the utility model is to provide a capacitor which is convenient to install, has a simple and reasonable structure, and is stable in structure.

[0004] A capacitor which is convenient to install includes a plastic shell with an open top and capacitor cores. The capacitor cores are internal series cores, and the internal series cores are potted in the inner cavity of the plastic shell through potting material. The lead terminals of the internal series cores extend out from the top of the plastic shell. At least one side wall of the plastic shell extends horizontally outwards to form a connecting ear, and an adjusting long hole for connection is opened on the connecting ear.

[0005] The purpose of the utility model can also be solved by adopting the following technical measures:

[0006] As a more specific solution, a copper clad laminate is arranged on the top of the internal series core, two copper clad surfaces are arranged at intervals on the copper clad laminate, and the lead terminals are respectively welded on the two copper clad surfaces; wires are electrically connected to the gold-sprayed surfaces at the left and right ends of the internal series core and are welded to the copper clad laminate or the lead terminals through the wires.

[0007] As a further solution, a plurality of through holes are arranged on the surface of the copper clad laminate, and at least part of the through holes penetrate through the copper clad surface; the potting material covers the copper clad laminate.

[0008] As a further solution, the shape of the copper clad laminate is the same as the shape of the inner cavity of the plastic housing, or the side edges of the copper clad laminate abut against the left and right wall surfaces of the inner cavity, and the end edges of the copper clad laminate abut against the front and back wall surfaces of the inner cavity, so that the capacitor core is positioned in the inner cavity of the plastic housing through the copper clad laminate.

[0009] As a further solution, the extending direction of the adjusting long hole is perpendicular to the corresponding side wall, or the extending direction of the adjusting long hole is parallel to the corresponding side wall.

[0010] As a further solution, the plastic housing is in a cuboid shape, including two long side walls and two short side walls. A connecting ear extends at the middle position of one of the long side walls, and the bottom surface of the connecting ear is flush with the bottom surface of the plastic housing.

[0011] As a further solution, the inner series core is in a flat cylindrical structure, and two parallel flat surfaces are provided on opposite sides. The two flat surfaces face the two long side walls respectively, and the flat surfaces abut against or are close to the long side walls.

[0012] As a further solution, the inner series core is made by winding two layers of films. The two layers of films include an outer layer film and an inner layer film;

[0013] Two inner layer metal coatings are symmetrically arranged on the inner surface of the inner layer film, and are separated between the two inner layer metal coatings; one outer layer metal coating is arranged on the inner surface of the outer layer film, and the outer layer metal coating is connected in series with the left and right two inner layer metal coatings.

[0014] As a further solution, the inner layer metal coating covers to the edge of the inner layer film, and a thickening area is arranged near the edge of the inner layer metal coating; the width of the outer layer film is smaller than the width of the inner layer film, the outer layer metal coating is arranged at the middle position of the outer layer film, and a margin is formed at the edge of the outer layer film, and the margin corresponds to the thickening area.

[0015] The beneficial effects of the present utility model are as follows:

[0016] A capacitor that is convenient to install according to the present utility model. The capacitor core of this capacitor adopts an inner series core, which can improve the performance of the capacitor core under the same volume, make the product safer and more reliable, and can improve the service life of the capacitor. The adjusting long holes on the plastic housing can be used for the connection and installation between the capacitor and the mounting plate, and can perform sliding fine adjustment on the installation position, with precise adjustment, convenient and fast, and can effectively improve the installation efficiency and quality. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the first embodiment of the capacitor in the present utility model.

[0018] Figure 2 Schematic diagram of the matching structure between the adjusting long hole and the connecting round hole in the present utility model.

[0019] Figure 3 Schematic diagram of the unfolded structure of the inner string core in the present utility model.

[0020] Figure 4 Schematic diagram of the sectional connection between the outer film and the inner film in the present utility model.

[0021] Figure 5 Schematic diagram of the structure of the second embodiment of the capacitor in the present utility model. Detailed implementation manners

[0022] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. Embodiment 1:

[0023] As Figures 1 to 4 shown, a capacitor that is convenient to install includes a plastic housing 1 with an open top and a capacitor core. The capacitor core is an inner string core 2. The inner string core 2 is potted in the inner cavity of the plastic housing 1 through a potting material 3. The lead terminals 4 of the inner string core 2 extend out from the top of the plastic housing 1. By adopting the inner string core 2 for the capacitor core of this capacitor, the performance of the capacitor core can be improved under the same volume, making the product safer and more reliable.

[0024] At least one side wall of the plastic housing 1 extends horizontally outwards to form a connecting ear 5. An adjusting long hole 501 for connection is provided on the connecting ear 5. The adjusting long hole 501 on the plastic housing 1 can be used for connecting and installing the capacitor to the mounting plate, and can also perform sliding fine adjustment on the installation position, with precise adjustment, convenient and fast, which can effectively improve the installation efficiency and quality.

[0025] A copper clad laminate 6 is provided at the top of the inner string core 2. Two copper clad surfaces 601 are arranged at intervals on the copper clad laminate 6. The lead terminals 4 are respectively welded on the two copper clad surfaces 601. Electrically conductive wires 7 are connected to the metallized surfaces 201 at the left and right ends of the inner string core 2, and are welded to the copper clad laminate 6 or the lead terminals 4 through the electrically conductive wires 7. By arranging the lead terminals 4 at the top of the inner string core 2 through the electrically conductive wires 7, the pitch between the lead terminals 4 can be fixed to meet the customized needs of customers.

[0026] A plurality of through holes 602 are provided on the surface of the copper clad laminate 6, and at least part of the through holes 602 penetrate through the copper clad surface 601. The potting material 3 covers the copper clad laminate 6. The provision of the through holes 602 enables the potting material 3 (epoxy resin) to better penetrate through the copper clad laminate 6, increasing the contact area and fixing the copper clad laminate 6 better.

[0027] The shape of the copper clad plate 6 is the same as the shape of the inner cavity of the plastic shell 1 (the shapes of the copper clad plate 6 and the inner cavity of the plastic shell 1 are both rectangular), or the copper clad plate 6 is in other regular shapes (in this embodiment, a pill-shaped structure) or other irregular shapes, but at least the sides of the copper clad plate 6 are against the left and right walls of the inner cavity, and the ends of the copper clad plate 6 are against the front and back walls of the inner cavity, so that the capacitor core is positioned in the inner cavity of the plastic shell 1 through the copper clad plate 6.

[0028] In this embodiment, the extending direction of the adjusting slot 501 and its corresponding side wall are perpendicular to each other, so that the capacitor can be slid left and right along the width direction for fine adjustment.

[0029] In more embodiments, the extending direction of the adjusting long hole 501 can also be set parallel to the corresponding side wall. The setting of the adjusting long hole 501 enables the capacitor to slide back and forth along the length direction for fine adjustment.

[0030] The plastic housing 1 is in the shape of a rectangular parallelepiped, including two long side walls 101 and two short side walls 102. A connecting ear 5 extends from the middle position of one of the long side walls 101, and the bottom surface of the connecting ear 5 is flush with the bottom surface of the plastic housing 1. When only one connecting ear 5 is provided, arranging the connecting ear 5 in the middle position can balance the forces at the left and right ends of the plastic housing 1, and the capacitor can be supported on the mounting plate 9 after installation.

[0031] The inner string core 2 is in the form of a flat cylindrical structure, with two parallel flat surfaces 202 provided on opposite sides, the two flat surfaces 202 facing the two long side walls 101 respectively, and the flat surfaces 202 are against or close to the long side walls 101; the cooperation between the flat surfaces 202 and the long side walls 101 can limit the angle at which the inner string core 2 is placed in the inner cavity of the plastic shell 1, thereby playing a limiting role and preventing the inner string core 2 from rotating at will in the inner cavity of the plastic shell 1.

[0032] Specifically, the inner string core 2 is made by winding two layers of film, and the two layers of film include an outer film 21 and an inner film 22;

[0033] The inner surface of the inner film 22 is symmetrically provided with two inner metal coatings 23, and the two inner metal coatings 23 are separated from each other; the inner surface of the outer film 21 is provided with an outer metal coating 24, and the outer metal coating 24 is connected in series with the left and right inner metal coatings 23; the left and right inner metal coatings 23 are connected in series and in parallel through the outer metal coating 24, thereby realizing an inner series connection.

[0034] In addition, the inner metal plating layer 23 covers the edge of the inner thin film 22, and a thickening area 231 is arranged at the inner metal plating layer 23 close to the edge; the width of the outer thin film 21 is smaller than that of the inner thin film 22, the outer metal plating layer 24 is arranged at the middle position of the outer thin film 21, and a margin 211 is formed at the edge of the outer thin film 21, and the margin 211 is arranged corresponding to the thickening area 231.

[0035] Specifically, the length of the inner string core 2 is W1, and 32 mm ± 2 mm ≤ W1 ≤ 52 mm ± 2 mm;

[0036] The thickness of the inner string core 2 is T1, and 8.2 mm ± 2 mm ≤ T1 ≤ 31.5 mm ± 2 mm;

[0037] The width of the inner string core 2 is H1, and 16 mm ± 2 mm ≤ H1 ≤ 44.1 mm ± 2 mm.

[0038] It further includes a mounting plate 9. The plastic housing 1 is placed against the mounting plate 9, and a connecting round hole 901 corresponding to the adjusting long hole 501 is formed on the mounting plate 9; fastening units such as screws pass through the adjusting long hole 501 and the connecting round hole 901, so as to fasten the capacitor on the mounting plate 9. When the position of the capacitor needs to be finely adjusted, only need to loosen the screw, so that the plastic housing 1 can slide relative to the screw. After adjusting to the preset position, tighten the screw again to fix the capacitor again. Embodiment Two:

[0039] The difference between Embodiment Two and Embodiment One is that, as Figure 5 shown, four lead terminals 4 are connected to the copper clad laminate 6, and the four lead terminals 4 are arranged in a matrix and evenly distributed.

[0040] The rest of the structure and principle of Embodiment Two are the same as those of Embodiment One, and will not be elaborated in detail here.

[0041] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and equivalents.

Claims

1. A capacitor that is easy to install, comprising a plastic housing (1) with an opening at the top and a capacitor core, characterized in that The capacitor core is an inner string core (2), the inner string core (2) is encapsulated in the inner cavity of a plastic shell (1) by means of an encapsulation material (3), a lead terminal (4) of the inner string core (2) extends from the top of the plastic shell (1), at least one side wall of the plastic shell (1) is provided with a connecting ear (5) extending horizontally outward, and a connecting long hole (501) for adjusting connection is provided on the connecting ear (5).

2. A capacitor that is easy to install according to claim 1, characterized in that A copper-clad plate (6) is arranged on the top of the inner string core (2), two copper-clad surfaces (601) are arranged on the copper-clad plate (6) at intervals, and the lead terminals (4) are respectively welded to the two copper-clad surfaces (601); the gold-sprayed surfaces (201) at the left and right ends of the inner string core (2) are electrically connected to wires (7), and are welded to the copper-clad plate (6) or the lead terminals (4) through the wires (7).

3. A capacitor that is easy to install according to claim 2, characterized in that The surface of the copper-clad board (6) is provided with a plurality of through holes (602), and at least some of the through holes (602) pass through the copper-clad surface (601); the packaging material (3) covers the copper-clad board (6).

4. A capacitor that is easy to install according to claim 2, characterized in that The shape of the copper-clad plate (6) is the same as the shape of the inner cavity of the plastic housing (1), or the side edges of the copper-clad plate (6) abut against the left and right walls of the inner cavity, and the ends of the copper-clad plate (6) abut against the front and rear walls of the inner cavity, so that the capacitor core is positioned in the inner cavity of the plastic housing (1) through the copper-clad plate (6).

5. A capacitor that is easy to install according to claim 1, characterized in that : The extending direction of the adjusting long hole (501) and the corresponding side wall are arranged perpendicularly to each other, or the extending direction of the adjusting long hole (501) and the corresponding side wall are arranged parallel to each other.

6. A capacitor that is easy to install according to claim 1, characterized in that The plastic shell (1) is in the shape of a rectangular parallelepiped, comprising two long side walls (101) and two short side walls (102), wherein a connecting ear (5) extends from the middle of one of the long side walls (101), and the bottom surface of the connecting ear (5) is flush with the bottom surface of the plastic shell (1).

7. A capacitor that is easy to install according to claim 3, characterized in that The inner string core (2) is in the form of a flat cylindrical structure, wherein two mutually parallel flat surfaces (202) are provided on opposite sides, the two flat surfaces (202) respectively face the two long side walls (101), and the flat surfaces (202) are arranged against or close to the long side walls (101).

8. A capacitor that is easy to install according to claim 1, characterized in that : The inner string core (2) is made by winding two layers of film, the two layers of film including an outer film (21) and an inner film (22); The inner surface of the inner film (22) is symmetrically provided with two inner metal coatings (23), and the two inner metal coatings (23) are separated from each other; the inner surface of the outer film (21) is provided with an outer metal coating (24), and the outer metal coating (24) is connected in series with the left and right inner metal coatings (23).

9. A capacitor that is easy to install according to claim 8, characterized in that : The inner metal coating (23) covers the edge of the inner film (22), and a thickened area (231) is arranged close to the edge of the inner metal coating (23); the width of the outer film (21) is smaller than the width of the inner film (22), the outer metal coating (24) is arranged in the middle of the outer film (21), and the edge of the outer film (21) forms a margin (211), and the margin (211) and the thickened area (231) are arranged correspondingly.

Images