Novel plug-in capacitor

Abstract

The utility model discloses a novel plug-in type capacitor which comprises a capacitor body, the lower end of the capacitor body is provided with a plurality of pins, the lower end of the capacitor body is provided with an insulating bottom plate, and the upper end face of the insulating bottom plate is provided with pin through holes corresponding to the positions of the pins. A plurality of arc-shaped positioning bulges are fixed on the section, exposed out of the lower port of the pin through hole, of each pin; the lower end of each pin is provided with a spine part, and the outer surface of the spine part is fixedly provided with an insulating silica gel layer. The upper end of the capacitor body is sleeved with a capacitor explosion-proof cover, the upper inner wall surface of the capacitor explosion-proof cover is provided with an elastic buffer device, the lower end of the capacitor explosion-proof cover is fixedly provided with a plurality of elastic clamping claws, and the lower end of each elastic clamping claw is clamped and fixed with the outer surface of the capacitor body. According to the technical scheme, the capacitor is reasonable in structural design, reliable in positioning, long in service life and good in practicability, and parts can be replaced in a targeted manner, and the use cost of the capacitor is reduced.

Description

Technical Field

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

[0002] A capacitor is a "container" that can store electric charge. However, this "container" contains a special substance - electric charge, and the positive and negative charges stored are equally distributed on two conductor plates that are not directly connected. It cannot generate electrons - it just stores electrons. Capacitors are divided into single-phase capacitors and three-phase capacitors. Single-phase capacitors are ordinary single two-line capacitors, and three-phase capacitors are composed of three ordinary single two-line capacitors connected in a Y-shape or a △-shape.

[0003] Traditional capacitors need to be welded or inserted into the circuit board, while plug-in capacitors can be directly inserted into or pulled out of the circuit board, which is very convenient and quick. However, there are still some shortcomings in the structure of existing plug-in capacitors: the structural design is unreasonable, some accessories of the existing plug-in capacitor explosion-proof aluminum cover are integrally formed, and once a part of the capacitor explosion-proof aluminum cover is broken, it needs to be completely replaced, which consumes more materials and increases the cost, and the installation and disassembly are more troublesome, which brings inconvenience to use; in addition, the existing plug-in capacitors are easy to loosen during use, have a short service life, and poor practicality. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a new plug-in capacitor with reasonable structural design, targeted replacement of parts, reduced cost of capacitor use, reliable positioning, long service life and good practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel plug-in capacitor, comprising a capacitor body, a plurality of pins are arranged at the lower end of the capacitor body, an insulating bottom plate is arranged at the lower end of the capacitor body, a pin through hole is arranged on the upper end surface of the insulating bottom plate in alignment with each pin position, the lower end of each pin is arranged through the aligned pin through hole, and a plurality of arc-shaped positioning protrusions are fixed on the lower end section of each pin exposed from the pin through hole; a spike portion is arranged at the lower end of each pin, and an insulating silicone layer is fixedly arranged on the outer surface of the spike portion;

[0006] The upper end of the capacitor body is sleeved with a capacitor explosion-proof cover, the lower end of the outer surface of the capacitor explosion-proof cover is fixedly provided with a convex edge of the explosion-proof cover, and the upper end surface of the convex edge of the explosion-proof cover is provided with a plurality of bolt through holes, each of which is penetrated by a positioning bolt, and the lower end of the positioning bolt is connected to the insulating bottom plate;

[0007] An elastic buffer device is provided on the upper inner wall surface of the capacitor explosion-proof cover, and the elastic buffer device includes a positioning spring and a limit plate, the upper end of the positioning spring is fixedly connected to the upper inner wall surface of the capacitor explosion-proof cover, the lower end of the positioning spring is fixedly connected to the upper end surface of the limit plate, and the lower end surface of the limit plate is connected to the upper end surface of the capacitor body;

[0008] A plurality of elastic claws are fixedly arranged at the lower end of the capacitor explosion-proof cover, and the lower end of each elastic claw is clamped and fixed to the outer surface of the capacitor body.

[0009] The utility model is further configured as follows: an insulating adhesive layer is fixedly arranged on the lower end surface of the insulating bottom plate, and a vertical through hole is arranged on the upper end surface of the insulating adhesive layer in alignment with each pin through hole position.

[0010] The utility model is further configured as follows: the capacitor explosion-proof cover is made of stainless steel or ABS plastic material, and a plurality of heat dissipation through holes are arranged on the side of the capacitor explosion-proof cover.

[0011] The utility model is further configured as follows: the positioning bolt includes a bolt head and a screw rod, the bolt head and the upper end of the screw rod are integrally arranged, a return spring is arranged at the lower end of the bolt head, a positioning gasket is arranged at the lower end of the return spring, the return spring and the positioning gasket are both sleeved on the screw rod, the upper end of the return spring is connected to the lower end of the bolt head, the lower end of the return spring is connected to the upper end face of the positioning gasket, and the lower end face of the positioning gasket is connected to the upper end face of the convex edge of the explosion-proof cover.

[0012] The utility model is further configured as follows: a positioning cylinder is integrally provided on the upper end surface of the insulating base plate aligned with the position of each positioning bolt, a connecting screw hole is provided at the middle position of the upper end surface of each positioning cylinder, and the lower end of the screw rod of each positioning bolt is threadedly connected to the aligned connecting screw hole.

[0013] The utility model is further configured as follows: a pull ring is integrally arranged on the upper end surface of the capacitor explosion-proof cover.

[0014] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model has a reasonable structural design, the pins of the capacitor body are first sleeved with an insulating bottom plate, each pin is exposed from the lower end section of the pin through hole and inserted into the socket of the existing circuit board, and the arc-shaped positioning protrusion on each pin plays a positioning role, so that the pin is compactly connected to the inner wall surface of the socket of the circuit board, is not easy to loosen, and has a long service life;

[0015] The lower end surface of the insulating bottom plate is bonded and fixed to the upper end surface of the existing circuit board through an insulating adhesive layer; a capacitor explosion-proof cover is sleeved on the upper end of the capacitor body, the upper end of the positioning spring of the elastic buffer device on the upper inner wall of the capacitor explosion-proof cover is fixedly connected to the upper inner wall of the capacitor explosion-proof cover, the lower end of the positioning spring is fixedly connected to the upper end surface of the limit plate, and the lower end surface of the limit plate is connected to the upper end surface of the capacitor body; the lower end of each elastic claw at the lower end of the capacitor explosion-proof cover is clamped and fixed to the outer surface of the capacitor body; the structural design is reasonable, and the elastic buffer device and the elastic claw at the lower end of the capacitor explosion-proof cover play a dual positioning role on the capacitor body, so that the capacitor body is reliably positioned and not easy to loosen;

[0016] The lower end of the outer surface of the capacitor explosion-proof cover is fixedly provided with an explosion-proof cover convex edge, and the explosion-proof cover convex edge is connected to the insulating bottom plate through positioning bolts; the connection is reliable, the assembly and disassembly are easy, the parts can be replaced in a targeted manner, the use cost of the capacitor is reduced, and the practicability is good.

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 The enlarged schematic diagram of the middle part I;

[0020] Figure 3 for Figure 1 The enlarged schematic diagram of the middle part II;

[0021] Figure 4 It is a schematic diagram of assembling the utility model and the existing circuit board. DETAILED DESCRIPTION

[0022] In the description of this embodiment, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] See also Figure 1 and Figure 4The utility model discloses a novel plug-in capacitor, comprising a capacitor body 1, a plurality of pins 2 are arranged at the lower end of the capacitor body 1, an insulating bottom plate 3 is arranged at the lower end of the capacitor body 1, a pin through hole 31 is arranged on the upper end surface of the insulating bottom plate 3 in alignment with each pin position, the lower end of each pin 2 is arranged through the aligned pin through hole 31, and a plurality of arc-shaped positioning protrusions 21 are fixed on the lower end section of each pin 2 exposed from the pin through hole 31; a spike portion 22 is arranged at the lower end of each pin 2, and an insulating silicone layer 4 is fixedly arranged on the outer surface of the spike portion 22;

[0024] The upper end of the capacitor body 1 is sleeved with a capacitor explosion-proof cover 5, and the lower end of the outer surface of the capacitor explosion-proof cover 5 is fixedly provided with an explosion-proof cover convex edge 51, and the upper end surface of the explosion-proof cover convex edge 51 is provided with a plurality of bolt through holes 511, and each bolt through hole 511 is penetrated with a positioning bolt 6, and the lower end of the positioning bolt 6 is connected to the insulating bottom plate 3;

[0025] An elastic buffer device is provided on the upper inner wall surface of the capacitor explosion-proof cover 5, and the elastic buffer device includes a positioning spring 7 and a limiting plate 8, the upper end of the positioning spring 7 is fixedly connected to the upper inner wall surface of the capacitor explosion-proof cover 5, the lower end of the positioning spring 7 is fixedly connected to the upper end surface of the limiting plate 8, and the lower end surface of the limiting plate 8 is connected to the upper end surface of the capacitor body 1;

[0026] A plurality of elastic claws 9 are fixedly disposed at the lower end of the capacitor explosion-proof cover 5 , and the lower end of each elastic claw 9 is clamped and fixed to the outer surface of the capacitor body 1 .

[0027] Preferably, at least two pins 2 are fixedly provided at the lower end of the capacitor body 1, and the number of arc-shaped positioning protrusions 21 on the lower end section of each pin 2 exposed from the pin through hole 31 is set to 1-4, and the arc-shaped positioning protrusions 21 are all made of copper and have good conductivity; the number of bolt through holes 511 on the upper end surface of the explosion-proof cover flange 51 is set to 2-4; the number of elastic claws 9 at the lower end of the capacitor explosion-proof cover 5 is set to 2-4, and the upper ends of the elastic claws 9 are integrated with the lower end of the capacitor explosion-proof cover 5 or fixed by welding or screw connection.

[0028] In order to make the structural design of the utility model more reasonable, as a preferred embodiment, an insulating adhesive layer 10 is fixedly provided on the lower end surface of the insulating base plate 3 described in this embodiment, and a vertical through hole 101 is provided on the upper end surface of the insulating adhesive layer 10 aligned with each pin through hole position.

[0029] The capacitor explosion-proof cover 5 is made of stainless steel or ABS plastic, and a plurality of heat dissipation through holes 52 are arranged on the side of the capacitor explosion-proof cover 5. Preferably, the number of the heat dissipation through holes 52 is more than 3.

[0030] The positioning bolt 6 includes a bolt head 61 and a screw rod 62, the bolt head 61 is integrally arranged with the upper end of the screw rod 62, a return spring 11 is arranged at the lower end of the bolt head 61, a positioning gasket 12 is arranged at the lower end of the return spring 11, the return spring 11 and the positioning gasket 12 are both sleeved on the screw rod 62, the upper end of the return spring 11 is connected to the lower end of the bolt head 61, the lower end of the return spring 11 is connected to the upper end surface of the positioning gasket 12, and the lower end surface of the positioning gasket 12 is connected to the upper end surface of the explosion-proof cover flange 51.

[0031] The upper end surface of the insulating base plate 3 is integrally provided with a positioning cylinder 32 aligned with the position of each positioning bolt, and a connecting screw hole is provided at the middle position of the upper end surface of each positioning cylinder 32, and the lower end of the screw rod 62 of each positioning bolt 6 is threadedly connected to the aligned connecting screw hole.

[0032] A pull ring 53 is integrally provided on the upper end surface of the capacitor explosion-proof cover 5 .

[0033] In actual application, the pins 2 of the capacitor body 1 are first sleeved with the insulating bottom plate 3, and the circuit board 100 is arranged below the insulating bottom plate 3. The lower end section of each pin 2 exposed from the pin through hole 31 is inserted into the socket of the circuit board 100. The arc-shaped positioning protrusion 21 on each pin 2 plays a positioning role, so that the pin 2 is compactly connected to the inner wall surface of the socket of the circuit board, not easy to loosen, and has a long service life;

[0034] The lower end surface of the insulating bottom plate 3 is bonded and fixed to the upper end surface of the existing circuit board through the insulating adhesive layer 10; the upper end of the capacitor body 1 is sleeved with a capacitor explosion-proof cover 5, the upper end of the positioning spring 7 of the elastic buffer device on the upper inner wall surface of the capacitor explosion-proof cover 5 is fixedly connected to the upper inner wall surface of the capacitor explosion-proof cover 5, the lower end of the positioning spring 7 is fixedly connected to the upper end surface of the limit plate 8, and the lower end surface of the limit plate 8 is connected to the upper end surface of the capacitor body 1; the lower end of each elastic claw 9 at the lower end of the capacitor explosion-proof cover 5 is clamped and fixed to the outer surface of the capacitor body 1; the structural design is reasonable, and the elastic claw 9 at the lower end of the elastic buffer device and the capacitor explosion-proof cover 5 plays a dual positioning role on the capacitor body 1, so that the capacitor body 1 is reliably positioned and not easy to loosen;

[0035] The lower end of the outer surface of the capacitor explosion-proof cover 5 is fixedly provided with an explosion-proof cover flange 51, which is connected to the insulating base plate 3 through positioning bolts 6; the connection is reliable, easy to assemble and disassemble, and parts can be replaced in a targeted manner, reducing the use cost of the capacitor and having good practicality.

[0036] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above-mentioned utility model, which fall within the scope of protection of the present invention.

Claims

1. A novel plug-in capacitor, comprising a capacitor body (1), wherein a plurality of pins (2) are provided at the lower end of the capacitor body (1), and characterized in that: An insulating bottom plate (3) is provided at the lower end of the capacitor body (1); a pin through hole (31) is provided on the upper end surface of the insulating bottom plate (3) aligned with each pin position; the lower end of each pin (2) is arranged through the aligned pin through hole (31), and a plurality of arc-shaped positioning protrusions (21) are fixed on the lower end section of each pin (2) exposed from the pin through hole (31); a spike portion (22) is provided at the lower end of each pin (2), and a layer of insulating silicone layer (4) is fixedly provided on the outer surface of the spike portion (22); The upper end of the capacitor body (1) is sleeved with a capacitor explosion-proof cover (5), the lower end of the outer surface of the capacitor explosion-proof cover (5) is fixedly provided with an explosion-proof cover convex edge (51), the upper end surface of the explosion-proof cover convex edge (51) is provided with a plurality of bolt through holes (511), each bolt through hole (511) is penetrated by a positioning bolt (6), and the lower end of the positioning bolt (6) is connected to the insulating bottom plate (3); An elastic buffer device is provided on the upper inner wall surface of the capacitor explosion-proof cover (5), and the elastic buffer device comprises a positioning spring (7) and a limiting plate (8), the upper end of the positioning spring (7) is fixedly connected to the upper inner wall surface of the capacitor explosion-proof cover (5), the lower end of the positioning spring (7) is fixedly connected to the upper end surface of the limiting plate (8), and the lower end surface of the limiting plate (8) is connected to the upper end surface of the capacitor body (1); A plurality of elastic claws (9) are fixedly arranged at the lower end of the capacitor explosion-proof cover (5), and the lower end of each elastic claw (9) is clamped and fixed to the outer surface of the capacitor body (1).

2. A novel plug-in capacitor according to claim 1, characterized in that: An insulating rubber layer (10) is fixedly arranged on the lower end surface of the insulating bottom plate (3), and a vertical through hole (101) is arranged on the upper end surface of the insulating rubber layer (10) in alignment with the position of each pin through hole.

3. A novel plug-in capacitor according to claim 2, characterized in that: The capacitor explosion-proof cover (5) is made of stainless steel or ABS plastic material, and a plurality of heat dissipation through holes (52) are arranged on the side of the capacitor explosion-proof cover (5).

4. A novel plug-in capacitor according to claim 3, characterized in that: The positioning bolt (6) comprises a bolt head (61) and a screw rod (62); the bolt head (61) is integrally arranged with the upper end of the screw rod (62); a reset spring (11) is arranged at the lower end of the bolt head (61); a positioning gasket (12) is arranged at the lower end of the reset spring (11); the reset spring (11) and the positioning gasket (12) are both sleeved on the screw rod (62); the upper end of the reset spring (11) is connected to the lower end of the bolt head (61); the lower end of the reset spring (11) is connected to the upper end surface of the positioning gasket (12); and the lower end surface of the positioning gasket (12) is connected to the upper end surface of the convex edge (51) of the explosion-proof cover.

5. A novel plug-in capacitor according to claim 4, characterized in that: The upper end surface of the insulating bottom plate (3) is integrally provided with a positioning cylinder (32) aligned with the position of each positioning bolt, and a connecting screw hole is provided at the middle position of the upper end surface of each positioning cylinder (32), and the lower end of the screw rod (62) of each positioning bolt (6) is threadedly connected to the aligned connecting screw hole.

6. A novel plug-in capacitor according to claim 5, characterized in that: A pull ring (53) is integrally provided on the upper end surface of the capacitor explosion-proof cover (5).

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