CN217134634U

CN217134634U - Multi-core group capacitor filter

Info

Publication number: CN217134634U
Application number: CN202221054314.6U
Authority: CN
Inventors: 朱江滨; 吴育东; 王凯星; 张子山; 林志盛
Original assignee: Fujian Torch Electron Technology Co ltd
Current assignee: Fujian Torch Electron Technology Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-05
Anticipated expiration: 2032-05-05

Abstract

The utility model provides a multicore group electric capacity filter, including welding frame, a plurality of ceramic electric capacity chips, junction pole and plastic envelope shell, welding frame includes first pad, the second pad, the third pad and draw forth the end, it is first, interval arrangement and interconnect about the second pad, interval arrangement about third pad and the second pad, the electrically conductive end of each ceramic electric capacity chip welds with the second pad respectively, another electrically conductive end welds with the third pad respectively, it is first, second and third pad are annular pad, the plastic envelope shell is according to the welding frame mould pressing formation behind the welding ceramic electric capacity chip, draw forth the end setting on the third pad and stretch out the plastic envelope shell, the junction pole passes first, second and third pad and with first pad welding. The utility model discloses the reliability is high, and the suitability is strong, can be applicable to multiple environment, can change the capacitance according to the in-service use condition, and production is simple.

Description

Multi-core group capacitor filter

Technical Field

The utility model relates to a multicore group electric capacity filter.

Background

The interior of the existing ceramic capacitor filter is a special non-standard ceramic capacitor which is produced by manufacturers, has single model, can only be suitable for a certain specific occasion, has poor adaptability, is difficult to adjust and change according to the actual use condition, can not flexibly change the capacitance, and has low reliability.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multicore group electric capacity filter, the reliability is high, and the suitability is strong, can be applicable to multiple environment, can change the electric capacity according to the in-service use condition, and production is simple.

The utility model discloses a following technical scheme realizes:

the utility model provides a multicore group capacitive filter, including welding frame, a plurality of ceramic capacitor chip, junction pole and plastic envelope shell, welding frame includes first pad, the second pad, third pad and leading-out end, it is first, interval arrangement and interconnect about the second pad, interval arrangement about third pad and the second pad, the electrically conductive end of each ceramic capacitor chip welds with the second pad respectively, another electrically conductive end welds with the third pad respectively, it is first, second and third pad are annular pad, the plastic envelope is according to the welding frame mould pressing formation behind the welding ceramic capacitor chip, the leading-out end sets up on the third pad and stretches out the plastic envelope, the junction pole passes first, second and third pad and with first pad welding.

Furthermore, the diameter of the third bonding pad is larger than that of the second bonding pad, the ceramic capacitor chips are horizontally arranged, the second bonding pad is welded with the upper side of one conductive end of each ceramic capacitor chip, and the third bonding pad is welded with the lower side of the other conductive end of each ceramic capacitor chip.

Furthermore, the diameter of the first bonding pad is smaller than that of the second bonding pad, and a bent first connecting sheet is arranged between the edges of the first bonding pad and the second bonding pad.

Further, the leading-out end comprises four bending pieces which are shaped like Contraband and are arranged on the third bonding pad at intervals.

Furthermore, the plastic package shell is formed by molding an epoxy molding compound.

Furthermore, the wiring rod is sleeved with a circular ring to be welded with the first welding disc.

Further, the first and second pads and the first connecting piece are integrally formed.

The utility model discloses following beneficial effect has:

1. the utility model discloses a welding frame includes second pad and third pad that upper and lower interval arranged, a conductive end of a plurality of ceramic capacitor chip respectively with the second pad welding, another conductive end then with the third pad welding, carry out the mould pressing according to welding frame after the welding is accomplished, form the plastic envelope shell, pass first, second and third pad and with first pad welding with the terminal rod again, when using, to the both ends of terminal rod, adopt pin junction or wiring welding, draw forth the end and weld in the shell of the product that uses this electric capacity wave filter, or with the ground connection on the PCB board, can realize the filtering function, the ceramic capacitor chip of the utility model is standard ceramic capacitor chip, the suitability is strong, can select the number of standard ceramic capacitor chip according to the actual use condition, in order to satisfy the requirement to the capacity, can be applicable to multiple environment, second pad and third pad interval arrangement, can avoid ceramic capacitor chip two electrically conductive end intercommunication short circuit, second and third pad are the annular, both provide the space that the terminal rod passed, can regard as ceramic capacitor chip's supporting mechanism again, whole inner structure does not set up connecting wire, but regard welding frame as electrically conductive mechanism, can guarantee electrically conductive reliability, welding frame's simple structure, the plastic envelope shell then forms through the mould pressing, compare in assembly forming's product, produce more simply high-efficient, can be applied to the mass production occasion.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is the schematic structural diagram of the utility model after the plastic package shell is removed.

11, welding a frame; 111. a second bonding pad; 112. a third pad; 12. a ceramic capacitor chip; 13. a first bonding pad; 131. a first connecting piece; 2. a wire connecting rod; 21. a circular ring; 3. plastic packaging the shell; 4. and (6) leading out the terminal.

Detailed Description

As shown in fig. 1 to 3, the multi-core group capacitor filter includes a welding frame 11, four ceramic capacitor chips 12, a terminal rod 2 and a plastic package housing 3, the welding frame 11 includes a first pad 13, a second pad 111, a third pad 112 and a leading-out terminal 4, the first pad 13 and the second pad 111 are arranged at an interval up and down and are connected with each other, the third pad 112 and the second pad 111 are arranged at an interval up and down, one conductive terminal of each ceramic capacitor chip 12 is welded with the second pad 111, the other conductive terminal of each ceramic capacitor chip 12 is welded with the third pad 112, the first pad 13, the second pad 111 and the third pad 112 are all annular pads and have the same circle center, the diameters of the first pad 13, the second pad 111 and the third pad 112 are sequentially increased, a bent first connection piece 131 is arranged between the edges of the first pad 13 and the second pad 111 to realize the conductive connection of the first pad 13 and the second pad 111, the diameter of the third bonding pad 112 is larger than that of the second bonding pad 111, the four ceramic capacitor chips 12 are horizontally arranged at intervals, the second bonding pad 111 is welded with the upper side of one conductive end of each ceramic capacitor chip 12, and the third bonding pad 112 is welded with the lower side of the other conductive end of each ceramic capacitor chip 12, so that the use reliability can be improved.

After the ceramic capacitor chips 12 are welded to the welding frame 11, the plastic package housing 3 can be formed by molding an epoxy molding compound according to the welding frame 11, and the plastic package housing 3 protects the ceramic capacitor chips 12. After the plastic package housing 3 is formed, the first bonding pads 13 are located on the outer side of the plastic package housing 3, so that the wiring rods 2 can be conveniently welded. The leading-out terminal 4 is arranged on the welding frame 11 and extends out of the plastic package housing 3, and specifically comprises four Contraband-shaped bending pieces arranged on the third bonding pad 112 at intervals. In the present embodiment, the first pad 13, the second pad 111, and the first connecting piece 131 are integrally formed, and the third pad 112 and the terminal 4 are integrally formed, so that the production is convenient and simple.

The connection rod 2 passes through the first, second and third bonding pads 112 and is welded with the first bonding pad 13, and the connection rod 2 is sleeved with a circular ring 21 to be welded with the upper end of the first bonding pad 13.

Correspondingly, the production method of the multi-core group capacitor filter comprises the following steps: firstly, connecting one conductive end of each ceramic capacitor chip with a second bonding pad, then connecting the other conductive end of each ceramic capacitor chip with a third bonding pad, then carrying out die pressing according to a welding frame after the ceramic capacitor chips are welded to form a plastic package shell, and finally enabling a wiring rod to penetrate through the first bonding pad, the second bonding pad and the third bonding pad and be welded with the first bonding pad.

When the multi-core group capacitor filter is used, the contact pins are connected to two ends of the wiring rod 2, or the connection wires are welded to two ends of the wiring rod 2, and the leading-out end 4 is connected with a shell of a product using the multi-core group capacitor filter or a ground on a PCB (printed circuit board), so that a filtering function can be realized.

The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited thereby, and all equivalent changes and modifications made within the scope of the claims and the specification should be considered within the scope of the present invention.

Claims

1. A multi-core group capacitive filter, characterized by: including welding frame, a plurality of ceramic capacitor chip, junction pole and plastic envelope shell, welding frame includes first pad, the second pad, the third pad and draw forth the end, first pad, interval arrangement and interconnect about the second pad, interval arrangement about third pad and the second pad, a conductive end of each ceramic capacitor chip welds with the second pad respectively, another conductive end welds with the third pad respectively, first pad, second pad and third pad are annular pad, the plastic envelope shell is according to the welding frame mould pressing behind the welding ceramic capacitor chip and forms, it sets up on the third pad and stretches out the plastic envelope shell to draw forth the end, the junction pole passes first pad, second pad and third pad and with first pad welding.

2. A multi-core group capacitive filter as claimed in claim 1, wherein: the diameter of the third bonding pad is larger than that of the second bonding pad, the ceramic capacitor chips are horizontally arranged, the second bonding pad is welded with the upper side of one conductive end of each ceramic capacitor chip, and the third bonding pad is welded with the lower side of the other conductive end.

3. A multi-core group capacitive filter as claimed in claim 1, wherein: the diameter of the first bonding pad is smaller than that of the second bonding pad, and a bent first connecting sheet is arranged between the edges of the first bonding pad and the second bonding pad.

4. A multi-core group capacitive filter as claimed in claim 1, 2 or 3, wherein: the leading-out end comprises four bending pieces which are shaped like Contraband and are arranged on the third bonding pad at intervals.

5. A multi-core group capacitive filter as claimed in claim 1, 2 or 3, wherein: the plastic package shell is formed by molding an epoxy molding compound.

6. A multi-core group capacitive filter according to claim 1, 2 or 3, wherein: the wiring rod is sleeved with a circular ring to be welded with the first welding disc.

7. A multi-core group capacitive filter as claimed in claim 3, wherein: the first pad, the second pad and the first connecting piece are integrally formed.