Lightweight compact combined tantalum capacitor

Abstract

A lightweight compact combined tantalum capacitor comprises a housing with an accommodating cavity formed inside, a packaging cover used for sealing the accommodating cavity, a plurality of single tantalum capacitors arranged in the accommodating cavity, and a fixing mechanism arranged between the packaging cover and the housing. The shell further comprises a plurality of placing grooves which are arranged at the bottom of the accommodating cavity at intervals and are used for placing a plurality of single tantalum capacitors, and two lead holes which are oppositely arranged on the side wall of the accommodating cavity and extend outwards; by limiting the structure of the combined tantalum capacitor, the combined tantalum capacitor structure which is attractive in appearance, compact in space and easy, convenient and rapid to assemble is obtained, meanwhile, the electrical gaps and insulativity between the end faces of the multiple single tantalum capacitors can be guaranteed, the product weight is reduced, the multiple single tantalum capacitors are stably installed, and overall installation is facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of tantalum capacitor preparation, and particularly relates to a lightweight and compact combined tantalum capacitor. Background Art

[0002] The combined high-energy composite tantalum electrolytic capacitor is a new type of high-performance all-tantalum capacitor with high energy density and low impedance. It replaces the cathode of the electrolytic capacitor with the cathode of a large-capacity electrochemical capacitor, integrating the advantages of high working voltage of the electrolytic capacitor and high energy density of the electrochemical capacitor. This product is applicable to DC, pulse, and low-ripple circuits of military electronic equipment with high reliability requirements such as aviation, aerospace, ordnance, satellites, and radars. It can play the role of a battery in energy conversion circuits and power pulse circuits, and can better meet the requirements of filtering, standby power supply, power energy conversion, delay buffering, and energy buffering in the power supplies of various military complete machines.

[0003] Currently, during the assembly process of the combined high-energy composite tantalum electrolytic capacitor, good insulation is required between monomers. Currently, the potting method is used, which may cause problems with the insulation between monomers. When the product undergoes relatively high-level vibrations, displacement may occur, damaging the insulation between monomers. With the development of technology, the requirements for product miniaturization and lightweight are becoming increasingly stringent, and further improvement is needed. Summary of the Invention

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a lightweight and compact combined tantalum capacitor.

[0005] The utility model adopts the following technical scheme:

[0006] A lightweight and compact combined tantalum capacitor includes a housing with an accommodation cavity formed inside, a packaging cover for sealing the accommodation cavity, a plurality of monomer tantalum capacitors arranged in the accommodation cavity, and a fixing mechanism arranged between the packaging cover and the housing. The housing further includes a plurality of placement grooves spaced at the bottom of the accommodation cavity for placing a plurality of monomer tantalum capacitors, and two lead holes oppositely arranged and extending outward from the side walls of the accommodation cavity.

[0007] Further, the housing includes a stepped portion extending downward from its top for installing the packaging cover. The fixing mechanism includes a plurality of first fixing holes extending downward on the stepped portion, a plurality of second fixing holes arranged on the packaging cover opposite to the first fixing holes, and a plurality of fixing bolts respectively passing through the plurality of second fixing holes and opposite to the first fixing holes.

[0008] Further, the packaging cover includes a packaging cover body and four elevation blocks arranged in a matrix at the four corners of the bottom surface of the packaging cover body. The second fixing holes extend downward from the top of the packaging cover body through the opposite elevation blocks.

[0009] Furthermore, it also includes a positioning mechanism arranged on the top of the multiple single tantalum capacitors, and the positioning mechanism includes a positioning insulating plate arranged on the top of the multiple single tantalum capacitors and a positioning member arranged between the positioning insulating plate and the shell.

[0010] Furthermore, the positioning member includes a plurality of positioning grooves spaced apart at the bottom of the accommodating cavity, a plurality of positioning holes arranged on the positioning insulating plate opposite to the plurality of positioning grooves, and a plurality of positioning bolts respectively passing through the plurality of positioning holes and threadedly engaged with the relative positioning grooves.

[0011] Furthermore, the single tantalum capacitor includes a tantalum capacitor body and a positive electrode connecting column and a negative electrode connecting column arranged on the tantalum capacitor body.

[0012] Furthermore, the plurality of single tantalum capacitors include two first single tantalum capacitors arranged adjacent to the two lead holes and two second single tantalum capacitors arranged on one side of the two first single tantalum capacitors. The two first single tantalum capacitors and the two second single tantalum capacitors are arranged in a matrix in the accommodation cavity.

[0013] Furthermore, it also includes two first connecting wires connected between adjacent first single tantalum capacitors and second single tantalum capacitors, a second connecting wire connected between two adjacent second single tantalum capacitors, a first extension wire provided on the positive connecting post of a first single tantalum capacitor and extending outward through the relative lead hole, and a second extension wire provided on the negative connecting post of another first single tantalum capacitor and extending outward through the relative lead hole, wherein the first connecting wire is connected between the positive connecting post of the first single tantalum capacitor and the negative connecting post of the second single tantalum capacitor or between the negative connecting post of the first single tantalum capacitor and the positive connecting post of the second single tantalum capacitor.

[0014] From the above description of the utility model, it can be seen that compared with the prior art, the beneficial effects of the utility model are as follows: the present application limits the structure of the combined tantalum capacitor to obtain a combined tantalum capacitor structure with beautiful appearance, compact space, simple and quick assembly, while ensuring the electrical gap and insulation between the end faces of multiple single tantalum capacitors, reducing product weight, and multiple single tantalum capacitors are stably installed, easy to install as a whole, and stable and firm after installation, with a long service life and easy disassembly, making it easy to inspect and repair when the capacitor fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of a combined tantalum capacitor;

[0016] Figure 2 This is an exploded diagram of a combined tantalum capacitor;

[0017] Figure 3 It is a partial structural diagram of a combined tantalum capacitor;

[0018] Figure 4 Schematic diagram of the structure of the outer shell Figure 1 ;

[0019] Figure 5 Schematic diagram of the structure of the outer shell Figure 2 ;

[0020] Figure 6 Schematic diagram of the structure of the encapsulation cover;

[0021] In the figure, 1 - outer shell, 2 - encapsulation cover, 3 - single tantalum capacitor, 4 - fixing mechanism, 5 - positioning mechanism, 11 - accommodation cavity, 12 - placement groove, 13 - lead hole, 14 - step portion, 15 - mounting hole, 21 - encapsulation cover body, 22 - heightening block, 31 - tantalum capacitor body, 32 - positive connection column, 33 - negative connection column, 34 - first single tantalum capacitor, 35 - second single tantalum capacitor, 41 - first fixing hole, 42 - second fixing hole, 51 - positioning insulating plate, 52 - positioning groove, 53 - positioning hole, 54 - positioning bolt. Specific embodiments

[0022] The present utility model will be further described below through specific embodiments.

[0023] Refer to Figures 1 to 6 As shown, a lightweight and compact combined tantalum capacitor includes an outer shell 1 with an accommodation cavity 11 formed therein, an encapsulation cover 2 for sealing the accommodation cavity 11, a plurality of single tantalum capacitors 3 disposed in the accommodation cavity 11, a fixing mechanism 4 disposed between the encapsulation cover 2 and the outer shell 1, and a positioning mechanism 5 disposed on the tops of the plurality of single tantalum capacitors 3.

[0024] The outer shell 1 further includes a plurality of placement grooves 12 spaced apart at the bottom of the accommodation cavity 11 for placing the plurality of single tantalum capacitors 3, two lead holes 13 oppositely disposed and extending outward from the side walls of the accommodation cavity 11, a step portion 14 extending downward from its top for mounting the encapsulation cover 2, and a plurality of mounting holes 15 disposed on the bottom of the outer shell 1 and extending inward for mounting the combined tantalum capacitor on a corresponding device. By providing the placement grooves 12 for placing the single tantalum capacitors 3 at the bottom of the accommodation cavity 11, the single tantalum capacitors 3 are fixed to prevent the single tantalum capacitors 3 from being displaced during vibration, resulting in a short circuit of the single tantalum capacitors 3.

[0025] The fixing mechanism 4 includes a plurality of first fixing holes 41 extending downward on the step portion 14, a plurality of second fixing holes 42 provided on the encapsulation cover and opposite to the first fixing holes 41, and a plurality of fixing bolts respectively passing through the plurality of second fixing holes 42 and opposite to the first fixing holes 41. Through the cooperation of the fixing bolts with the first fixing holes 41 and the second fixing holes 42, the detachable setting of the encapsulation cover 2 is realized, so as to facilitate inspection and maintenance when the capacitor fails.

[0026] The positioning mechanism 5 includes a positioning insulating plate 51 provided on the tops of a plurality of single tantalum capacitors 3 and a positioning member provided between the positioning insulating plate 51 and the housing 1; specifically, the positioning member includes a plurality of positioning grooves 52 spaced apart at the bottom of the accommodating cavity 11, a plurality of positioning holes 53 provided on the positioning insulating plate 51 and opposite to the plurality of positioning grooves 52, and a plurality of positioning bolts 54 respectively passing through the plurality of positioning holes 53 and threadedly engaged with the opposite positioning grooves 52. By defining the structure of the positioning mechanism 5, the positioning insulating plate 51 cooperates with the positioning member to longitudinally fix the plurality of single tantalum capacitors 3, preventing the plurality of single tantalum capacitors 3 inside from being displaced during vibration and causing damage to the core body.

[0027] The encapsulation cover 2 includes an encapsulation cover body 21 and four elevation blocks 22 arranged in a matrix at the four corners of the bottom surface of the encapsulation cover body 21. Among them, the second fixing holes 42 extend downward from the top of the encapsulation cover body 21 through the opposite elevation blocks 22; through the cooperation of the encapsulation cover 2, the plurality of single tantalum capacitors 3 are longitudinally reinforced to ensure the stability during the use of the product.

[0028] The single tantalum capacitor 3 includes a tantalum capacitor body 3 and a positive connection column 32 and a negative connection column 33 provided on the tantalum capacitor body 31. Among them, the plurality of single tantalum capacitors 3 include two first single tantalum capacitors 34 adjacent to the two lead holes 13 and two second single tantalum capacitors 35 provided on one side of the two first single tantalum capacitors 34. The two first single tantalum capacitors 34 and the two second single tantalum capacitors 35 are arranged in a matrix in the accommodating cavity 11; specifically, the combined tantalum capacitor further includes two first connection wires connected between adjacent first single tantalum capacitors 34 and second single tantalum capacitors 35, a second connection wire connected between adjacent two second single tantalum capacitors 35, a first extension wire provided on the positive connection column of a first single tantalum capacitor and extending outward through the opposite lead hole 13, and a second extension wire provided on the negative connection column of the other first single tantalum capacitor and extending outward through the opposite lead hole 13. Further, the first connection wire is connected between the positive connection column of the first single tantalum capacitor and the negative connection column of the second single tantalum capacitor or connected between the negative connection column of the first single tantalum capacitor and the positive connection column of the second single tantalum capacitor; the second connection wire is respectively connected between the positive connection column of one second single tantalum capacitor and the negative connection column of the other second single tantalum capacitor.

[0029] By defining the structure of the combined tantalum capacitor, the present application obtains a combined tantalum capacitor structure with beautiful appearance, compact space, simple and fast assembly. At the same time, it can ensure the electrical clearance and insulation between the end faces of multiple single tantalum capacitors 3, reduce the product weight, the multiple single tantalum capacitors 3 are stably installed, convenient for overall installation, and are stable and firm after installation, with a long service life and convenient disassembly, which is convenient for inspection and maintenance when the capacitor fails.

[0030] The above is only a preferred embodiment of the present invention, and thus cannot limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the present invention application and the content of the specification should still fall within the scope covered by the present invention application.

Claims

1. A lightweight and compact combined tantalum capacitor, characterized in that: It includes a housing with an accommodation cavity formed inside, a packaging cover for sealing the accommodation cavity, a plurality of single tantalum capacitors disposed in the accommodation cavity, and a fixing mechanism disposed between the packaging cover and the housing. The housing further includes a plurality of placement grooves spacedly arranged at the bottom of the accommodation cavity for placing the plurality of single tantalum capacitors, and two lead holes oppositely arranged and extending outward from the side wall of the accommodation cavity.

2. The lightweight and compact combined tantalum capacitor according to claim 1, wherein: The housing includes a stepped portion extending downward from its top for mounting the packaging cover. The fixing mechanism includes a plurality of first fixing holes extending downward on the stepped portion, a plurality of second fixing holes disposed on the packaging cover opposite to the first fixing holes, and a plurality of fixing bolts respectively passing through the plurality of second fixing holes and opposite to the first fixing holes.

3. A lightweight and compact combined tantalum capacitor according to claim 2, characterized in that: The packaging cover includes a packaging cover body and four elevation blocks arranged in a matrix at the four corners of the bottom surface of the packaging cover body. The second fixing holes extend downward from the top of the packaging cover body through the opposite elevation blocks.

4. A lightweight and compact combined tantalum capacitor according to claim 1, characterized in that: It further includes a positioning mechanism disposed on the tops of the plurality of single tantalum capacitors. The positioning mechanism includes a positioning insulating plate disposed on the tops of the plurality of single tantalum capacitors and a positioning member disposed between the positioning insulating plate and the housing.

5. A lightweight and compact combined tantalum capacitor according to claim 4, characterized in that: The positioning member includes a plurality of positioning grooves spacedly arranged at the bottom of the accommodation cavity, a plurality of positioning holes disposed on the positioning insulating plate opposite to the plurality of positioning grooves, and a plurality of positioning bolts respectively passing through the plurality of positioning holes and threadedly engaged with the opposite positioning grooves.

6. A lightweight and compact combined tantalum capacitor according to claim 1, characterized in that: The single tantalum capacitor includes a tantalum capacitor body and a positive connection column and a negative connection column disposed on the tantalum capacitor body.

7. A lightweight and compact combined tantalum capacitor according to claim 6, characterized in that: The plurality of single tantalum capacitors include two first single tantalum capacitors adjacent to the two lead holes and two second single tantalum capacitors disposed on one side of the two first single tantalum capacitors. The two first single tantalum capacitors and the two second single tantalum capacitors are arranged in a matrix in the accommodation cavity.

8. A lightweight and compact combined tantalum capacitor according to claim 7, characterized in that: It further includes two first connecting wires connected between adjacent first single tantalum capacitors and second single tantalum capacitors, a second connecting wire connected between adjacent two second single tantalum capacitors, a first extension wire disposed on the positive connection column of a first single tantalum capacitor and extending outward through the opposite lead hole, and a second extension wire disposed on the negative connection column of the other first single tantalum capacitor and extending outward through the opposite lead hole. The first connecting wire is connected between the positive connection column of the first single tantalum capacitor and the negative connection column of the second single tantalum capacitor or between the negative connection column of the first single tantalum capacitor and the positive connection column of the second single tantalum capacitor.

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