Series connection type parallel capacitor structure

By using a series-parallel capacitor structure, multi-core parallel cores are welded to copper sheets and encapsulated with epoxy material, solving the problems of capacitors being unable to withstand large currents and cumbersome assembly, thus achieving a highly efficient and stable capacitor design.

CN223911536UActive Publication Date: 2026-02-13TECHCAP CAPACITOR INC
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Patent Information

Application Number
CN202520415156.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-02-13
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

Existing capacitor structures are difficult to withstand large currents and the assembly and welding processes are cumbersome.

Method used

The capacitor adopts a series-parallel connection structure, including a multi-core parallel core inside a plastic shell. It is welded to the copper busbar through an adapter copper sheet and isolated by an insulating film, and then filled with epoxy resin to fill the gaps.

Benefits of technology

This technology achieves high current carrying capacity and stability for capacitors, simplifies the assembly process, and improves production efficiency and insulation performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

A series connection type parallel capacitor structure is characterized in that a plurality of multi-core parallel cores (3) are arranged in a capacitor structure shell (1), and the cores (3) are round cores or flattened cores; two metal spraying end surfaces of the core (3) are respectively soldered with the two switching copper sheets (7) to form one capacitor core group (1), and two capacitor core groups are provided; the two end faces of the inner side are connected with the lower copper bar (6) in a welded mode through the switching copper sheets (7), the two end faces of the outer side are connected with the upper copper bar (5) in a welded mode through the switching copper sheets (7), and the upper copper bar (5) and the lower copper bar (6) are isolated through an insulating diaphragm. The utility model has the advantages of compact structure, small volume and convenience in installation and use, can be widely applied to various electronic equipment requiring high current bearing capacity and stable performance, and has wide market application prospect.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a capacitor technical field especially a series connection parallel capacitor structure. BACKGROUND

[0002] Nowadays, the capacitor is composed of multiple capacitor cores, and these cores have the same capacitance capacity and consistent structure size. However, this structure has several limitations: first, the structure of the capacitor cannot withstand large current; second, the assembly and welding process is relatively complicated. SUMMARY

[0003] In order to solve the above problems in the prior art, the utility model provides a series connection parallel capacitor structure.

[0004] The utility model discloses a technical scheme adopted to solve the technical problems:

[0005] A series connection parallel capacitor structure, which is suitable for multi-core parallel connection, comprises a capacitor structure shell 1, which is hollow inside; the capacitor structure shell 1 is made of plastic material; a plurality of multi-core parallel cores 3 are arranged inside the capacitor structure shell 1, and the cores 3 are round or flattened; two gold-plated end faces of the core 3 are respectively soldered with two adapter copper sheets 7 to form one capacitor core group, and there are two capacitor core groups; the two inner end faces are soldered and connected with a lower copper bar 6 through the adapter copper sheet 7, and the two outer end faces are soldered and connected with an upper copper bar 5 through the adapter copper sheet 7; the upper copper bar 5 and the lower copper bar 6 are isolated by an insulating film.

[0006] The utility model also has the following additional technical features:

[0007] As a further specific optimization of the utility model technical scheme: the adapter copper sheet 7 has a right-angle "L shape", and a soldering window 4 and a pouring feeding and gas outlet hole 2 are formed on the corresponding position of the adapter copper sheet 7.

[0008] As a further specific optimization of the utility model technical scheme: after the core is assembled into the capacitor structure shell 1, the adapter copper sheet 7 is respectively soldered and connected with the upper copper bar 5 and the lower copper bar 6 through the soldering window 4;

[0009] As a further specific optimization of the utility model technical scheme: after the soldering and connection, the epoxy material is poured for sealing, the epoxy material is poured from the pouring feeding and gas outlet hole 2, and the epoxy material fills all the gaps inside the capacitor structure shell 1.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] The compact structure, small volume, convenient installation and use are achieved by the capacitor structure. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view structural schematic diagram of the utility model;

[0013] Figure 2 It is a side view structural schematic diagram of the utility model.

[0014] Mark explanation: capacitor structure shell 1, pouring feed gas hole 2, core 3, welding window 4, upper copper bar 5, lower copper bar 6, switching copper sheet 7. DETAILED DESCRIPTION

[0015] The utility model discloses an example embodiment disclosed will be described in more detail below with reference to the drawings.

[0016] Example 1

[0017] A series connection parallel capacitor structure, the capacitor structure is applicable to multicore parallel;Including capacitor structure shell 1, capacitor structure shell 1 inside is hollow;The capacitor structure shell 1 is the shell made of plastic material;The capacitor structure shell 1 inside installation is provided with a plurality of multicore parallel core 3, and the core 3 is round core or flattened core;Two electroplating end faces of core 3 are respectively with two switching copper sheet 7 tin soldering and form 1 capacitor core group, and there are two capacitor core groups;Two inner end faces are connected with lower copper bar 6 through switching copper sheet 7, and two outer end faces are connected with upper copper bar 5 through switching copper sheet 7, and upper copper bar 5 and lower copper bar 6 are isolated by insulating film piece.

[0018] Switching copper sheet 7 appearance is right angle " L shape ",Switching copper sheet 7 on corresponding position processing has welding window 4 and pouring feed gas hole 2.

[0019] After core group is loaded into capacitor structure shell 1, switching copper sheet 7 is connected with upper copper bar 5 and lower copper bar 6 respectively through welding window 4;

[0020] After welding connection, fill with epoxy material, and epoxy material is filled from pouring feed gas hole 2, and epoxy material fills all interstices in capacitor structure shell 1.

[0021] A series connection parallel capacitor structure installation method:

[0022] First, the capacitor structure shell 1 is prepared to ensure that it is made of plastic material and has a hollow interior. Then, a plurality of multi-core parallel cores 3 are installed inside the capacitor structure shell 1, which can be round or flattened cores, and the specific shape is selected according to actual needs. Then, the two gold-plated end faces of the core 3 are respectively soldered with two adapter copper sheets 7, thereby forming a capacitor core group, and two capacitor core groups are needed.

[0023] After the capacitor core group is formed, the two end faces on the inside need to be welded and connected with the lower copper bar 6 through the adapter copper sheet 7, and the two end faces on the outside need to be welded and connected with the upper copper bar 5 through the adapter copper sheet 7. In this process, the upper copper bar 5 and the lower copper bar 6 need to be isolated by an insulating film to ensure the electrical safety of the capacitor structure.

[0024] The adapter copper sheet 7 has a right-angle "L-shaped" shape, and a welding window 4 and a potting feed and exhaust hole 2 are processed thereon. The welding window 4 is used to weld and connect the adapter copper sheet 7 with the upper copper bar 5 and the lower copper bar 6, and the potting feed and exhaust hole 2 is used for the subsequent epoxy material potting process.

[0025] After the welding connection is completed, epoxy material potting is needed. The epoxy material enters the inside of the capacitor structure shell 1 from the potting feed and exhaust hole 2, and fills all the gaps. After the potting process is completed, the capacitor structure is completed.

[0026] The capacitor structure of the utility model not only can withstand a large current, but also has a simple assembly and welding process, which greatly improves the production efficiency. At the same time, due to the use of epoxy material potting, the insulation performance and stability of the capacitor structure are also significantly improved.

[0027] Example 2

[0028] The capacitor structure shell 1 is also provided with a heat sink, which is tightly attached to the capacitor structure shell 1 to improve the heat dissipation performance of the capacitor and ensure the stable operation of the capacitor under long-term high-load work.

[0029] The bottom of the capacitor structure shell 1 is provided with a mounting foot, and the mounting foot is provided with a mounting hole, which facilitates the fixed installation of the capacitor structure and also improves the stability and reliability of the capacitor structure.

[0030] The opening of the capacitor structure shell 1 is provided with a sealing ring, which is tightly matched with the capacitor structure shell 1 to prevent external dust and moisture from entering the inside of the capacitor structure, and to ensure the performance and service life of the capacitor structure.

[0031] Installation method of the capacitor structure of example 2 in series connection and parallel connection:

[0032] Similar to the mounting method of example 1, first prepare the capacitor structure shell 1 with the heat sink, mounting foot and sealing ring. Then, according to the steps in example 1, install several multi-core parallel cores 3 inside the capacitor structure shell 1 and solder to form a capacitor core group, and then connect the upper copper bar 5 and the lower copper bar 6 through the adapter copper sheet 7. During this process, attention should also be paid to the insulation isolation between the upper copper bar 5 and the lower copper bar 6. After soldering, epoxy is filled to ensure that the epoxy fills all the gaps inside the capacitor structure shell 1. Finally, the capacitor structure is fixed and installed at the desired position through the mounting hole on the mounting foot.

[0033] The capacitor structure of the utility model in example 2, by increasing the heat sink, mounting foot and sealing ring and other design, further improve the heat dissipation performance, stability and reliability of the capacitor, also facilitate the fixed installation and protection of the capacitor structure.

[0034] The above detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.

Claims

1. A series-parallel connected capacitance structure, characterized by: The capacitor structure is suitable for multi-core parallel connection; the capacitor structure shell (1) is internally hollow; the capacitor structure shell (1) is made of plastic material; a plurality of multi-core parallel connection cores (3) are arranged in the capacitor structure shell (1), the core (3) is a round core or a flattened core; two gold-plated end faces of the core (3) are respectively tin soldered with two adapter copper sheets (7) to form one capacitor core group, and there are two capacitor core groups; the two inner end faces are welded and connected with the lower copper bar (6) through the adapter copper sheet (7), and the two outer end faces are welded and connected with the upper copper bar (5) through the adapter copper sheet (7); the upper copper bar (5) and the lower copper bar (6) are isolated by an insulating film.

2. The series-parallel capacitive structure according to claim 1, wherein: The adapter copper sheet (7) is in a right angle "L shape", and the adapter copper sheet (7) is processed with a welding window (4) and a pouring feeding and gas outlet hole (2) at a corresponding position.

3. The series-parallel capacitive structure according to claim 1, wherein: After the core is assembled into the capacitor structure shell (1), the adapter copper sheet (7) is welded and connected with the upper copper bar (5) and the lower copper bar (6) through the welding window (4).

4. The series-parallel capacitive structure of claim 1, wherein: After welding and connecting, the epoxy material is poured, the epoxy material is poured from the pouring feeding and gas outlet hole (2), and the epoxy material fills all the gaps in the capacitor structure shell (1).