Series connection type parallel capacitor structure

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 high-current-bearing-capacity and stable-performance current transformer is compact in structure, small in size and convenient to install and use, can be widely applied to various electronic devices needing high current bearing capacity and stable performance, and has wide market application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitors, and in particular to a capacitor structure with a series-connected parallel connection. Background Art

[0002] At present, capacitors are mostly composed of multiple capacitor cores. These cores not only have the same capacitance value but also have the same structural dimensions. However, this structure has several limitations: First, the structure of the capacitor is difficult to withstand large currents; second, the assembly and welding processes are relatively cumbersome. Summary of the Invention

[0003] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a capacitor structure with a series-connected parallel connection.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows: A capacitor structure with a series-connected parallel connection, which is suitable for multi-core parallel connection; it includes a capacitor structure housing 1, and the interior of the capacitor structure housing 1 is hollow; the capacitor structure housing 1 is a housing made of plastic material; several multi-core parallel cores 3 are installed inside the capacitor structure housing 1, and the cores 3 are round cores or flattened cores; the two metallized end faces of the cores 3 are respectively soldered to two transfer copper sheets 7 to form 1 capacitor core group, and there are two capacitor core groups in total; the two inner end faces are welded and connected to the lower copper row 6 through the transfer copper sheet 7, and the two outer end faces are welded and connected to the upper copper row 5 through the transfer copper sheet 7, and the upper copper row 5 and the lower copper row 6 are isolated by an insulating film.

[0005] The present invention also has the following additional technical features: As a further specific optimization of the technical solution of the present invention: the transfer copper sheet 7 has a right-angled "L" shape, and welding windows 4 and potting feed air holes 2 are processed at corresponding positions on the transfer copper sheet 7.

[0006] As a further specific optimization of the technical solution of the present invention: after the cores are assembled into the capacitor structure housing 1, the transfer copper sheet 7 is respectively welded and connected to the upper copper row 5 and the lower copper row 6 through the welding windows 4; As a further specific optimization of the technical solution of the present invention: after the welding connection, epoxy resin is used for potting, and the epoxy resin is potted from the potting feed air holes 2, and the epoxy resin fills all the voids inside the capacitor structure housing 1.

[0007] Compared with the prior art, the present invention has the following advantages: The structure of the present invention is compact, small in volume, and convenient for installation and use. In addition, the design of this capacitor structure makes the connection between capacitor core groups more stable, improving the overall stability and reliability of the capacitor. In practical applications, it can be widely applied to various electronic devices that require high current-carrying capacity and stable performance, and has broad market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a front view structural schematic diagram of the present invention; Figure 2 is a side view structural schematic diagram of the present invention.

[0009] Description of reference numerals: capacitor structure housing 1; potting feed vent 2; core 3; welding window 4; upper copper busbar 5; lower copper busbar 6; adapter copper sheet 7. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0010] The exemplary embodiments disclosed by the present invention will be described in more detail below with reference to the drawings.

[0011] Embodiment 1 A capacitor structure in series-parallel connection, which is applicable to multi-core parallel connection; it includes a capacitor structure housing 1, and the inside of the capacitor structure housing 1 is hollow; the capacitor structure housing 1 is a housing made of plastic material; several multi-core parallel-connected cores 3 are installed inside the capacitor structure housing 1, and the cores 3 are round cores or flattened cores; the two metallized end faces of the core 3 are respectively soldered to two adapter copper sheets 7 to form 1 capacitor core group, and there are two capacitor core groups in total; the two inner end faces are welded and connected to the lower copper busbar 6 through the adapter copper sheet 7, and the two outer end faces are welded and connected to the upper copper busbar 5 through the adapter copper sheet 7, and the upper copper busbar 5 and the lower copper busbar 6 are isolated by an insulating film.

[0012] The adapter copper sheet 7 is in the shape of a right-angled "L", and welding windows 4 and potting feed vents 2 are processed at corresponding positions on the adapter copper sheet 7.

[0013] After the core group is installed in the capacitor structure housing 1, the adapter copper sheet 7 is respectively welded and connected to the upper copper busbar 5 and the lower copper busbar 6 through the welding window 4; After the welding connection, epoxy resin is used for potting, and the epoxy resin is potted from the potting feed vent 2, and the epoxy resin fills all the voids inside the capacitor structure housing 1.

[0014] An installation method of a capacitor structure in series-parallel connection: First, prepare the capacitor structure housing 1 to ensure that it is made of plastic material and is hollow inside. Then, install several multi-core parallel-connected cores 3 inside the capacitor structure housing 1. The cores 3 can be round cores or flattened cores, and the specific shape is selected according to actual needs. Then, the two metallized end faces of the core 3 are respectively soldered to two adapter copper sheets 7 to form one capacitor core group, and a total of two capacitor core groups need to be formed.

[0015] After forming the capacitor core group, it is necessary to weld and connect the two inner end faces to the lower copper row 6 through the adapter copper sheet 7, and at the same time weld and connect the two outer end faces to the upper copper row 5 through the adapter copper sheet 7. During this process, an insulating film sheet is needed to isolate between the upper copper row 5 and the lower copper row 6 to ensure the electrical safety of the capacitor structure.

[0016] The outer shape of the adapter copper sheet 7 is in a right-angled "L" shape, and it is processed with a welding window 4 and a potting feed vent hole 2. The welding window 4 is used to weld and connect the adapter copper sheet 7 to the upper copper row 5 and the lower copper row 6, while the potting feed vent hole 2 is used for the subsequent epoxy potting process.

[0017] After the welding connection is completed, epoxy potting is required. The epoxy material enters the interior of the capacitor structure housing 1 through the potting feed vent hole 2 and fills all the voids. After the potting process is completed, the capacitor structure is fabricated.

[0018] The capacitor structure of the present invention can not only withstand a large current, but also has a simple assembly and welding process, greatly improving the production efficiency. At the same time, due to the use of epoxy potting, the insulation performance and stability of the capacitor structure have also been significantly improved.

[0019] Embodiment 2 A heat sink is further provided outside the capacitor structure housing 1, and the heat sink is closely attached to the capacitor structure housing 1 to improve the heat dissipation performance of the capacitor and ensure the stable operation of the capacitor under long-term high-load working conditions.

[0020] Mounting feet are provided at the bottom of the capacitor structure housing 1, and mounting holes are provided on the mounting feet to facilitate the fixed installation of the capacitor structure and also improve the stability and reliability of the capacitor structure.

[0021] A sealing ring is provided at the opening of the capacitor structure housing 1, and the sealing ring is closely fitted with the capacitor structure housing 1 to prevent external dust and moisture from entering the interior of the capacitor structure and ensure the performance and service life of the capacitor structure.

[0022] Installation method of the capacitor structure in series-parallel connection in Embodiment 2: Similar to the installation method of Embodiment 1, first prepare the capacitor structure housing 1 with a heat sink, mounting feet and a sealing ring. Then, according to the steps in Embodiment 1, install several multi-core parallel cores 3 into the interior of the capacitor structure housing 1, and perform soldering to form a capacitor core group, and then weld and connect to the upper copper row 5 and the lower copper row 6 through the adapter copper sheet 7. During this process, attention also needs to be paid to the insulation isolation between the upper copper row 5 and the lower copper row 6. After welding, perform epoxy potting to ensure that the epoxy material fills all the voids inside the capacitor structure housing 1. Finally, fix and install the capacitor structure to the required position through the mounting holes on the mounting feet.

[0023] In Embodiment 2 of the capacitor structure of the present invention, through designs such as adding heat sinks, mounting feet, and sealing rings, the heat dissipation performance, stability, and reliability of the capacitor are further improved. At the same time, it also facilitates the fixed installation and protection of the capacitor structure.

[0024] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

Claims

1. A series parallel capacitor structure, characterized in that: The capacitor structure is suitable for multi-core parallel connection; it comprises a capacitor structure housing (1), the interior of the capacitor structure housing (1) is hollow; the capacitor structure housing (1) is a housing made of plastic material; a plurality of multi-core parallel cores (3) are installed inside the capacitor structure housing (1), the cores (3) are round cores or flattened cores; two gold-sprayed end faces of the cores (3) are respectively soldered to two transfer copper sheets (7) to form (1) a capacitor core group, with two capacitor core groups in total; the two inner end faces are welded to the lower copper bar (6) through the transfer copper sheet (7), and the two outer end faces are welded to the upper copper bar (5) through the transfer copper sheet (7), and the upper copper bar (5) and the lower copper bar (6) are isolated by an insulating film.

2. The series-parallel capacitor structure according to claim 1, characterized in that: The transfer copper sheet (7) has a right-angle "L" shape, and a welding window (4) and a potting feed outlet hole (2) are processed at corresponding positions on the transfer copper sheet (7).

3. The series-parallel capacitor structure according to claim 1, characterized in that: After the core assembly is installed in the capacitor structure housing (1), the transfer copper sheet (7) is respectively welded and connected to the upper copper bar (5) and the lower copper bar (6) through the welding window (4).

4. The series-parallel capacitor structure according to claim 1, characterized in that: After the welding connection, epoxy material is used for potting. The epoxy material is potted from the potting material feed and outlet holes (2), and the epoxy material fills all the gaps inside the capacitor structure shell (1).

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