CN219143986U - Multi-core combined capacitor - Google Patents

Abstract

The utility model discloses a multi-core combined capacitor, which comprises a shell and a cover plate, wherein a plurality of capacitor cores, a common lead wire and a plurality of independent lead wires are arranged in the shell, a plurality of wiring terminals are inserted into terminal holes of the cover plate, and each wiring terminal comprises a common electrode end and a plurality of independent electrode ends. All the capacitor cores are connected with the common electrode terminal through a single common lead, and each capacitor core is connected with different independent electrode terminals through each independent lead, namely, each capacitor core corresponds to different independent electrode terminals. Through above structural design mode, the user can use a plurality of electric capacity cores alone or parallelly connected combination use according to actual circuit's needs, has multiple connected mode to match out multiple different electric capacities, make things convenient for the user to select to use, structural design is simple reasonable. And through the integrated inside that sets up at the casing with a plurality of electric capacity cores, structural design is compact, occupation space is little, can show reduction in production cost.

Description

Multi-core combined capacitor

Technical Field

The utility model relates to the technical field of capacitor products, in particular to a multi-core combined capacitor.

Background

The capacitor is an element for storing electric quantity and electric energy (potential energy), and is also an electronic component commonly used in electronic circuits, and plays an important role in circuits such as tuning, bypass, coupling and filtering. With the progress of science and technology and the development of society, the capacitor industry is driven to grow greatly. A number of technical solutions are known from the prior art regarding capacitors.

For example, chinese patent publication No. CN210668104U discloses a circular dc support capacitor with a sealing structure, where the circular dc support capacitor accommodates a housing of the capacitor core and a cover plate connected to the top of the housing, and the technical solution may enable the circular dc support capacitor to work in a high-temperature and high-humidity environment, so as to have a better application range. The Chinese patent document with the publication number of CN203134561U discloses an anti-explosion capacitor, which consists of a capacitor core, a shell, a potting material and a leading-out end, wherein the capacitor core is positioned in the shell, the potting material between the capacitor core and the shell is made of an elastomer material, one or more through holes are formed in the proper position on the shell, and the capacitor in the technical scheme has the characteristic of high safety performance. The chinese patent publication No. CN204668162U discloses a film capacitor, which includes a case and a capacitor core of the capacitor, and the technical scheme fixes the capacitor core by hot melt adhesive, which can prevent the capacitor core from floating up when the epoxy resin is poured, thereby facilitating the pouring of the epoxy resin.

The technical defects and shortcomings of the scheme are as follows: the structure adopts the design mode that the single shell is provided with the single capacitor core, for the capacitor of the type, customers can only use the capacitor singly or in combination and matched with the capacitor in actual use, the purchasing cost is high, the installation operation is complex and tedious in use, and after a plurality of capacitors are assembled, larger space can be occupied in the use process and the transportation process.

Therefore, there is a need in the art to provide a capacitor that is convenient to use and occupies a small space.

Disclosure of Invention

In order to solve the technical problems that the cost is high, the installation and the use are inconvenient and the occupied space is large when the capacitor in the prior art is combined and matched, the utility model provides a multi-core combined capacitor, which has the characteristics of simple and reasonable structural design, simplicity and convenience in use and operation and small occupied space.

The utility model adopts the technical proposal for solving the problems that:

a multi-core combined capacitor, comprising:

the capacitor comprises a shell, wherein a capacitor core assembly is arranged in the shell and comprises a capacitor core, a common lead and independent leads, the number of the capacitor core and the number of the independent leads are more than or equal to two, the capacitor cores are connected through the common lead, and the capacitor cores are respectively connected with the independent leads;

the cover plate is provided with a plurality of groups of terminal holes, wiring terminals are inserted into any group of terminal holes, and each wiring terminal comprises a public electrode end and an independent electrode end;

wherein the common lead is connected to the common electrode terminal, and the independent lead is connected to the independent electrode terminal.

Further, the capacitive core assembly further includes insulating spacers disposed between each of the capacitive cores to separate each of the capacitive cores.

Further, the edge of the cover plate protrudes upwards to form an annular baffle, and the height of the annular baffle is higher than that of any one of the wiring terminals.

Further, the common lead is connected to the bottom of each of the capacitor cores, and each of the independent leads is connected to the top of each of the capacitor cores.

In a second embodiment of the present utility model, a technical solution is provided regarding specific structural arrangements of the cover plate, the common electrode terminal, and the independent electrode terminal.

And the cover plate is provided with a parting bead, and the parting bead is arranged between any two groups of adjacent terminal holes so as to separate the terminal holes.

Further, at least two terminal holes are included in any one group of the terminal holes.

Further, the common electrode terminal is of an L-shaped terminal structure, and the independent electrode terminal is of a U-shaped terminal structure.

In a third embodiment of the utility model, a solution is provided regarding a specific structural arrangement of the filling structure.

The capacitor comprises a capacitor core, and is characterized in that a filling structure is further arranged in the shell, and the filling structure is arranged between the inner side wall of the shell and the capacitor core, so that the capacitor core is wrapped by the filling structure.

Further, the filling structure comprises an epoxy resin.

In a fourth embodiment of the present utility model, a technical solution is provided regarding specific number of capacitor cores, common leads, independent leads, terminal holes, common electrode terminals and independent electrode terminals.

The number of the capacitor cores is 3, the number of the common leads is 1, the number of the independent leads is 3, the number of the terminal holes is 4 groups, the number of the common electrode terminals is 1, and the number of the independent electrode terminals is 3.

In summary, compared with the prior art, the multi-core combined capacitor provided by the utility model has at least the following technical effects:

1) The multi-core combined capacitor comprises a shell and a cover plate, wherein a plurality of capacitor cores, a single common lead wire and a plurality of independent lead wires are arranged in the shell, a plurality of wiring terminals are inserted into terminal holes of the cover plate, and each wiring terminal comprises a common electrode end and a plurality of independent electrode ends; all the capacitor cores are connected with the common electrode terminal through a single common lead wire, and each capacitor core is connected with each independent electrode terminal through each independent lead wire, namely, each capacitor core corresponds to each independent electrode terminal; through the structural design mode, a user can independently use or parallelly combine a plurality of capacitor cores according to the requirement of an actual circuit, and the capacitor cores have various connection modes, so that various different electric capacities are matched, the capacitor cores are convenient for the user to select and use, and the structural design is simple and reasonable;

2) The multi-core combined capacitor provided by the utility model can realize the use selection of various electric capacities by integrating the plurality of capacitor cores, the common lead and the plurality of independent leads in the shell, does not need to combine and match the capacitor with a plurality of single cores, namely does not need complex and complicated installation operation, has compact structural design and small occupied space, and can obviously reduce the product cost.

Drawings

FIG. 1 is a schematic diagram of a multi-core combined capacitor according to the present utility model;

FIG. 2 is an exploded view of the multi-core combined capacitor of the present utility model;

FIG. 3 is a schematic diagram of the structure of the capacitive core assembly, common leads and individual leads of the present utility model;

FIG. 4 is another schematic diagram of the capacitive core assembly, common leads and independent leads of the present utility model;

FIG. 5 is a top view of the multi-core combined capacitor of the present utility model;

wherein the reference numerals have the following meanings:

1. a housing; 2. a capacitive core assembly; 21. a capacitor core; 22. an insulating spacer; 3. a common lead; 4. an independent lead; 5. a cover plate; 51. a parting bead; 52. an annular baffle; 6. a connection terminal; 7. a common electrode terminal; 8. and an independent electrode terminal.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

Referring to fig. 1-4, according to a first embodiment of the present utility model, a multi-core combined capacitor includes a case 1, a capacitor core assembly 2 is disposed in the case 1, the capacitor core assembly 2 includes a capacitor core 21, a common lead 3 and independent leads 4, the number of the capacitor core 21 and the number of the independent leads 4 are equal to each other, and the number of the capacitor core 21 and the number of the independent leads 4 are equal to or greater than two, each capacitor core 21 is connected through the common lead 3, and each capacitor core 3 is connected to each independent lead 4. Wherein the common lead 3 sequentially passes through each capacitor core 21, so that each capacitor core 21 is connected through the common lead 3; the individual leads 4 are connected to the respective capacitive cores 3, i.e. correspond to the respective capacitive cores 3. Specifically, the housing 1 may preferably be an insulating structure such as plastic.

Referring to fig. 1-5, the multi-core combined capacitor further comprises a cover plate 5, a plurality of groups of terminal holes are formed in the cover plate 5, wiring terminals 6 are inserted into any group of terminal holes, and the wiring terminals 6 comprise a common electrode terminal 7 and independent electrode terminals 8. Wherein the number of the common electrode terminals 7 is 1, and the common electrode terminals are used for being connected with a single common lead 4; the number of the independent electrode terminals 8 is the same as the number of the capacitor cores 3 and the number of the independent leads 4, that is, the independent electrode terminals 8 respectively correspond to the independent leads 4 and are used for being connected with the independent leads 4. Specifically, the cover plate 5 may preferably be an insulating structure such as plastic.

In the solution of this embodiment, all the capacitor cores 21 are connected to the common electrode terminal 7 by a single common lead 3, and each capacitor core 21 is connected to each individual electrode terminal 8 by each individual lead 4, i.e. each capacitor core 3 corresponds to a different individual electrode terminal 8. Specifically, the common electrode terminal 7 is used as a common terminal of the whole capacitor, each independent electrode terminal 8 is used as an independent terminal of the whole capacitor corresponding to each different capacitor core 21, one end of an external circuit can be connected with the common electrode terminal 7 during use, and the other end of the external circuit can be connected with any one or more independent electrode terminals 8, so that the independent use or parallel use of the plurality of capacitor cores 21 is realized according to the actual requirement of the circuit, and a plurality of capacitance specifications with different sizes are matched through a plurality of connection modes, so that the capacitor cores are convenient for users to select and use.

More specifically, the capacitance of each capacitor core 21 may be the same or different, so that the capacitance of the multi-core combined capacitor of the present utility model may be selected from the range of the capacitance of a single minimum capacitor core 21 (when the minimum capacitor core 21 is used alone) to the sum of the capacitances of all the capacitor cores 21 (when all the capacitor cores 21 are connected in parallel), and the structural design is simple and reasonable. In addition, the utility model can realize the use selection of various capacitance by integrating the plurality of capacitor cores 21, the common lead 3 and the plurality of independent leads 4 in the shell 1, does not need to combine and match a plurality of capacitors with single cores, can save complex and complicated installation operation flow, has compact structural design and small occupied space, and can obviously reduce the product cost.

Referring to fig. 2 and 3, in a preferred version of this embodiment, the capacitive core assembly 2 further includes insulating spacers 22, the insulating spacers 22 being disposed between each of the capacitive cores 21 to separate each of the capacitive cores 21. Specifically, the insulating spacer 22 is preferably a sheet-shaped structure made of insulating material such as paper or plastic, and is used to separate the respective capacitor cores 21 in the housing 1, so that the respective capacitor cores 21 form independent capacitor bodies, and thus, after the respective capacitor cores 21 are connected to the different independent electrode terminals 8 through the independent leads 4, the selection of different capacitance values is achieved.

In another preferred embodiment of this embodiment, as shown in fig. 1, 2 and 5, an annular baffle plate 52 is formed by upwardly protruding the edge of the cover plate 5, and the height of the annular baffle plate 52 is higher than the height of any one of the connection terminals 6. Among them, the annular baffle plate 52 may preferably be an insulating structure such as plastic. Specifically, after each connection terminal 6 is inserted into the terminal hole of the cover plate 5, the height of the annular baffle plate 52 is higher than that of any connection terminal 6, so that the connection terminal 6 is prevented from contacting with an external structure when the multi-core combined capacitor is not used, the connection terminal 6 is protected, and the service life of the capacitor is prolonged.

Referring to fig. 3 and 4, in another preferred embodiment of this embodiment, the common lead 3 is connected to the bottom of each of the capacitor cores 21, and each of the individual leads 4 is connected to the top of each of the capacitor cores 21. Specifically, the common lead 3 sequentially passes through the bottom of each capacitor core 21 and is connected to each capacitor core 21, then extends upward to a height higher than the capacitor core 21, and finally is connected to the common electrode terminal 7 inserted in the cover plate 5. The individual leads 4 are connected to the top of the capacitor cores 21, respectively, and extend upward to be finally connected to the individual electrode terminals 8 inserted in the cover plate 5. Through the structural design mode, on one hand, the common lead 3 and each independent lead 4 can be ensured to be staggered, and the mutual influence among the leads is avoided; on the other hand, since the mounting positions of the common lead 3 and the independent lead 4 are the bottom of the capacitor core 21 and the top of each capacitor core 21 respectively, operators can conveniently connect various leads on each capacitor core 1, the situation of wire confusion in the assembly process is not easy to occur, and the assembly difficulty of the multi-core combined capacitor is reduced.

Example 2

In the second embodiment of the present utility model, a technical solution is provided regarding specific structural arrangements of the cover plate 5, the common electrode terminal 7 and the independent electrode terminal 8.

Referring to fig. 1 and 5, in the technical solution of this embodiment, a parting bead 51 is provided on the cover 5, and the parting bead 51 is disposed between any two adjacent groups of the terminal holes, so as to separate the terminal holes of each group. Among them, the division bar 51 is preferably a long strip structure made of an insulating material such as plastic. Specifically, the parting strips 51 are used for separating the terminal holes of each group, that is, separating the common electrode terminal 7 and the independent terminals 8 inserted in each group of terminal holes, one end of the external circuit is connected with the common electrode terminal 7, and the other end of the external circuit can be connected with the different independent terminals 8, so that the selective use of capacitance of different magnitudes is realized.

In a preferred embodiment of this embodiment, as shown in fig. 5, at least two terminal holes are included in any one of the terminal holes for inserting both ends of the terminal and extending the terminal from the top.

Referring to fig. 2, in another preferred aspect of this embodiment, the common electrode terminal 7 is an L-shaped terminal structure, and the independent electrode terminal 8 is a U-shaped terminal structure, both of which are metal terminal structures. One end of the L-shaped terminal structure is inserted into the terminal hole and extends upwards to protrude; the two ends of the U-shaped terminal structure are inserted into the terminal holes and extend upwards to protrude. Specifically, by providing the common electrode terminal 7 and the independent electrode terminal 8 in different shapes or types of metal terminal structures, it is possible to facilitate the user to recognize and select connection use during use.

Example 3

In a third embodiment of the utility model, a solution is provided with respect to a specific structural arrangement of filling structures (not shown in the figures).

In this embodiment, a filling structure is further disposed inside the housing 1, and the filling structure is disposed between the inner sidewall of the housing 1 and the capacitor core 21, so that the filling structure wraps the capacitor core 21. During specific assembly, the capacitor cores 21 and the leads are combined and then placed in the shell 1, then the filling structure in a molten state is poured into the shell 1, and the capacitor cores 21 can be wrapped after the filling structure is cooled, so that the capacitor cores 21 are insulated, fixed, structurally protected and the like.

In a preferred version of this embodiment, the filler structure comprises an epoxy resin having excellent adhesive and thermosetting properties that can be cured quickly after pouring into the interior of the housing 1 to encase the capacitive core 21 arrangement.

Example 4

In the fourth embodiment of the present utility model, a technical solution is provided regarding the specific number of the capacitor core 21, the common lead 3, the independent lead 4, the terminal hole, the common electrode terminal 7 and the independent electrode terminal 8.

Referring to fig. 2 to 5, in the technical solution of this embodiment, the number of the capacitor cores 21 is 3; the number of the common leads 3 is 1, and the number of the independent leads 4 is 3 as same as the number of the capacitor cores 21; the number of the terminal holes is 4 groups, the number of the common electrode terminals 7 is 1, and the number of the independent electrode terminals 8 and the number of the capacitor cores 21 are the same and are all 3. Specifically, 3 capacitor cores 21 are respectively labeled as A, B, C, so that the multi-core combined capacitor of the utility model can realize the selective use of 7 connection modes, namely:

①、A；②、B；③、C；④、AB；⑤、AC；⑥、BC；⑦、ABC。

in summary, the multi-core combined capacitor provided by the utility model comprises a housing 1 and a cover plate 5, wherein a plurality of capacitor cores 21, a single common lead 3 and a plurality of independent leads 4 are arranged in the housing 1, a plurality of connecting terminals 6 are inserted into terminal holes of the cover plate 5, and the connecting terminals 6 comprise a common electrode terminal 7 and a plurality of independent electrode terminals 8. Wherein all the capacitor cores 21 are connected to the common electrode terminal 7 through a single common lead 3, and each capacitor core 21 is connected to each independent electrode terminal 8 through each independent lead 4, i.e. each capacitor core 21 corresponds to a different independent electrode terminal 8. Through the above structural design mode, the user can use a plurality of capacitor cores 21 singly or in parallel according to the requirement of an actual circuit, and the capacitor cores have a plurality of connection modes, so that a plurality of different electric capacities can be matched, the user can select and use the capacitor cores conveniently, and the structural design is simple and reasonable. In addition, the utility model can realize the use selection of various different capacitances by integrating the plurality of capacitor cores 21, the single common lead 3 and the plurality of independent leads 4 in the shell 1, and the capacitor with a plurality of single cores is not required to be used in a combined and matched way, i.e. complex and complicated installation operation is not required, the structure design is compact, the occupied space is small, and the product cost can be obviously reduced.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (9)

1. A multi-core combined capacitor, comprising:

the capacitor comprises a shell, wherein a capacitor core assembly is arranged in the shell and comprises a capacitor core, a common lead and independent leads, the number of the capacitor core and the number of the independent leads are more than or equal to two, the capacitor cores are connected through the common lead, and the capacitor cores are respectively connected with the independent leads;

the cover plate is provided with a plurality of groups of terminal holes, wiring terminals are inserted into any group of terminal holes, and each wiring terminal comprises a public electrode end and an independent electrode end;

wherein the common lead is connected with the common electrode terminal, and the independent lead is connected with the independent electrode terminal; the cover plate is provided with a parting bead which is arranged between any two groups of adjacent terminal holes so as to separate the terminal holes.

2. The multi-core combined capacitor of claim 1 wherein said capacitive core assembly further comprises insulating spacers disposed between each of said capacitive cores to separate each of said capacitive cores.

3. The multi-core combined capacitor of claim 1 wherein any one of said sets of terminal holes includes at least two terminal holes.

4. The multi-core combined capacitor of claim 3, wherein the common electrode terminal is an L-shaped terminal structure and the individual electrode terminal is a U-shaped terminal structure.

5. The multi-core combined capacitor according to claim 1, wherein an edge of the cover plate is upwardly protruded to form a ring-shaped baffle plate, and a height of the ring-shaped baffle plate is higher than a height of any one of the connection terminals.

6. The multi-core combined capacitor of claim 1 wherein said common lead is connected to a bottom of each of said capacitive cores and each of said individual leads is connected to a top of each of said capacitive cores.

7. The multi-core combined capacitor of claim 1, wherein a filler structure is further provided inside the case, the filler structure being disposed between an inner sidewall of the case and the capacitor core such that the filler structure surrounds the capacitor core.

8. The multi-core combined capacitor of claim 7 wherein the filler structure comprises an epoxy.

9. The multi-core combined capacitor according to any one of claims 1 to 8, wherein the number of the capacitor cores is 3, the number of the common leads is 1, the number of the individual leads is 3, the number of the terminal holes is 4 groups, the number of the common electrode terminals is 1, and the number of the individual electrode terminals is 3.

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