CN212303423U - Small-size high-specific-volume power supporting capacitor - Google Patents

Abstract

The utility model relates to the technical field of capacitors, and discloses a small-volume high-specific-volume power supporting capacitor, which comprises a shell, an insulating layer, an amorphous oxide layer, a tantalum anode, a tantalum tube, a tantalum wire, a diaphragm, a gasket, a cathode and a capacitor plug, wherein the capacitor plug comprises an insulating plug seat, a connecting column, a plug, an explosion bead and a channel, the connecting column comprises a connecting column body, an annular groove and a drainage channel, the outer surface layer of the connecting column body is provided with the annular groove, the drainage channel radially penetrates through the connecting column body, is communicated with the annular groove, the plug is fixedly arranged at the lower end of the connecting column, the blasting beads are arranged in the connecting column body and positioned above the drainage channel, the channel longitudinally penetrates through the insulating plug seat, the connecting column and the plug, this condenser can make the condenser seal more portably swiftly in the manufacturing process through setting up the electric capacity stopper, and the leakproofness is better, makes production efficiency obtain promoting by a wide margin.

Description

Small-size high-specific-volume power supporting capacitor

Technical Field

The utility model relates to a condenser technical field specifically is a little volume high specific volume electric power support capacitor.

Background

The tantalum is mainly used for manufacturing electrolytic capacitors, 62% of the world tantalum product consumption is in the form of tantalum powder and tantalum wires for manufacturing the tantalum electrolytic capacitors in 2000, and the tantalum capacitors have the advantages of high specific volume, good stability, wide use temperature range, good moisture resistance, good shock resistance, high reliability, convenience for miniaturization and chip formation and the like, so that the tantalum capacitors are widely used in the fields of IT industry, mobile communication, mobile phones, personal computers, camcorders, digital cameras, automobiles, sound equipment, high-grade toys, instruments and meters, aerospace and the like. After being inquired:

the existing sheet type full-sealed non-solid electrolytic tantalum capacitor (publication No. CN201465812U) comprises an insulator, a shell, a cathode, a diaphragm, a gasket, a cathode, a tantalum anode and a tantalum wire, wherein the capacitor adopts a metal oxide with large capacity as the cathode, and the capacitance per unit weight of a cathode active material exceeds 100F/g, so that the capacitor has the characteristics of small volume, large capacity and high reliability, is axially led out and is convenient to mount, and can be widely applied to various electronic circuits such as filtering, energy storage and the like.

Therefore, a new capacitor structure is proposed to solve the problem that the tantalum tube is easily detached during the use process due to the influence of welding on the tantalum tube.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a be not enough to prior art, the utility model provides a little volume high specific volume electric power support capacitor, through with the sealing layer with electric capacity stopper and tantalum union coupling, avoid the welding to cause destruction to the tantalum pipe, and sealing performance also obtains promoting to electric capacity stopper plays protection and supporting role to the tantalum pipe, in the use, the tantalum pipe is difficult for droing.

(II) technical scheme

For realizing above-mentioned messenger's condenser seals convenient and fast, avoid the welding to cause destruction to the tantalum pipe, the tantalum pipe is difficult for the purpose that drops in the use, the utility model provides a following technical scheme: a small volume, high specific volume power support capacitor comprising:

the shell is made of metal materials and is cylindrical, and a circular hole is formed in the top of the shell;

the insulating layer is wrapped on the outer surface layer of the shell;

an amorphous oxide layer coated on the inner side of the case, and functioning as a cathode of the capacitor together with the case;

the tantalum anode is formed by pressing high specific capacity tantalum powder and is arranged inside the shell;

a tantalum wire, the lower end of which is inserted into the tantalum anode;

a membrane disposed between the amorphous oxide layer and the tantalum anode;

a gasket disposed at a bottom of an inner side of the housing;

a negative electrode, the upper end of which is fixed on the shell and is used as the negative electrode of the capacitor;

a capacitive plug for sealing a housing, comprising:

an insulating plug seat;

the connecting column is fixedly arranged at the lower end of the insulating plug seat;

the supporting rod is in an arc shape, and the lower end of the supporting rod is fixedly arranged at the upper end of the insulating plug seat;

a socket fixed at the upper end of the support rod;

the lower end of the tantalum tube is sleeved at the upper end of the tantalum wire, and the other end of the tantalum tube extends out of the shell to be used as the positive electrode of the capacitor;

and the sealing layer is used for sealing connection of the tantalum tube and the capacitor plug.

Preferably, the centers of the plug seat, the connecting column and the socket are all provided with circular through holes.

Preferably, the surface of the connecting column is provided with threads.

Preferably, the edge of the round hole at the top of the shell is provided with threads.

Preferably, the inner wall of the tantalum tube is provided with a wave-shaped convex line.

Preferably, the socket comprises a socket disc and an interface, the socket disc is circular, and the interface is arranged at the edge of the socket disc.

Preferably, the socket plate is provided with a plurality of oval through holes.

Preferably, the case is filled with an electrolyte.

(III) advantageous effects

Compared with the prior art, the utility model provides a little volume high specific volume electric power support capacitor possesses following beneficial effect:

1. this little volume high specific volume electric power support capacitor sets up the screw thread through setting up at shell top round hole edge and spliced pole surface, seals the condenser through threaded connection, in process of production, seals more conveniently.

2. This little volume high specific volume electric power support capacitor through with sealing layer sealing connection tantalum pipe and electric capacity stopper, has avoided the welding to cause the destruction to the tantalum pipe, and has made the leakproofness that has promoted the junction.

3. This little volume high specific volume power support capacitor through setting up cock seat, bracing piece and socket, lets the tantalum pipe wait to support and protect in the use, can make the tantalum pipe can not drop easily.

4. This little volume high specific volume power support capacitor sets up a plurality of oval through-holes on the socket dish, can promote the heat dispersion of condenser connecting circuit back junction.

5. The small-volume high-specific-volume power supporting capacitor has the advantage that the wavy wales are arranged on the inner wall of the tantalum tube, so that the tantalum tube and the tantalum wire are in contact more fully.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a cross-sectional view of the capacitor plug 9 of fig. 1;

FIG. 3 is a top view of the socket 94 of FIG. 2;

FIG. 4 is an enlarged schematic view of the junction of the tantalum anode 4, the tantalum wire 5 and the tantalum tube 10;

in the figure: 1 outer shell, 2 insulating layers, 3 amorphous oxide layers, 4 tantalum anode, 5 tantalum wire, 6 diaphragm, 7 gasket, 8 cathode, 9 capacitor plug, 91 plug seat, 92 connecting column, 93 supporting rod, 94 socket, 941 socket disk, 942 interface, 10 tantalum tube and 11 sealing layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "page", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a small-volume high-specific-volume power support capacitor includes a housing 1, an insulating layer 2, an amorphous oxide layer 3, a tantalum anode 4, a tantalum wire 5, a diaphragm 6, a gasket 7, a negative electrode 8, a capacitor plug 9, a tantalum tube 10, and a sealing layer 11. The shell 1 is made of metal materials and is cylindrical, a round hole is formed in the top of the shell, threads are arranged on the edge of the round hole, and electrolyte is filled in the round hole; the insulating layer 2 is wrapped on the outer surface layer of the shell 1, so that the surface layer of the capacitor is insulated and plays a role in protecting the capacitor; an amorphous oxide layer 3 is coated on the inside of the case 1, and serves as a cathode of the capacitor together with the case 1; the tantalum anode 4 is formed by pressing high specific volume tantalum powder, has the characteristics of excellent electrical property, wide working temperature range, excellent volume efficiency and large capacitance in unit volume, and is arranged in the shell 1, so that the capacitor meets the requirements of small volume and high specific volume; the lower end of the tantalum wire 5 is inserted into the tantalum anode 4; the diaphragm 6 is arranged between the amorphous oxide layer 3 and the tantalum anode 4 and plays a role in isolation; the gasket 7 is fixedly arranged at the bottom of the inner side of the shell 1 and used for fixing the tantalum anode 4; the upper end of the negative electrode 8 is fixed on the shell 1 and is used as the negative electrode of the capacitor; the capacitor plug 9 is used for sealing the housing 1, and comprises an insulating plug seat 91, a connecting column 92, a supporting rod 93 and a socket 94, wherein the insulating plug seat 91 is made of insulating materials such as ceramics and mica, the connecting column 92 is fixedly arranged at the lower end of the insulating plug seat 91, the surface of the connecting column 92 is provided with threads which can be meshed with the threads in a round hole at the upper end of the housing 1, the supporting rod 93 is arc-shaped, the lower end of the supporting rod 93 is fixedly arranged at the upper end of the insulating plug seat 91, the socket 94 is fixedly arranged at the upper end of the supporting rod (93) and comprises a socket disc 941 and an interface 942, the socket disc 941 is round and is provided with a plurality of oval through holes, so that the heat dissipation at the connecting part of the capacitor and the circuit after connection is; the tantalum tube 10 is used as a leading-out wire of the tantalum wire 5, the lower end of the tantalum tube is sleeved at the upper end of the tantalum wire 5, the other end of the tantalum tube extends out of the shell 1 to be used as an anode of the capacitor, and in order to enable the tantalum tube 10 to be fully contacted with the tantalum wire 5, the inner wall of the tantalum tube 10 is provided with a wave-shaped convex pattern; circular through holes are formed in the centers of the plug seat 91, the connecting column 92 and the socket 94, and the tantalum tube 10 penetrates through the capacitor plug 9 through the circular through holes; the sealing layer 11 is specifically an epoxy sealant, and is arranged between the tantalum tube 10 and gaps of the plug seat 91, the connecting column 92 and the circular through hole of the socket 94 to play roles of connection and sealing.

The utility model discloses a theory of operation:

the capacitor is connected into the circuit through the tantalum tube 10 and the negative electrode 8, when the tantalum tube 10 is connected, the connector 942 is inserted into a corresponding socket hole of the circuit board, so that the capacitor can be connected more firmly, and the socket disc 941 is provided with a plurality of oval through holes, so that the heat dissipation of the connection part is not influenced; because the tantalum tube 10 is connected with the capacitor plug 9 through the sealing layer 11, and the capacitor plug 9 is connected with the shell 1 through the threads, the tantalum tube 10 cannot fall off due to mechanical vibration and the like when in use, and the insulating plug seat 91, the support rod 93 and the socket 94 are integrated to support and protect the tantalum tube 10, so that the tantalum tube 5 cannot be broken; the inner wall of the tantalum tube 10 is provided with a wave-shaped convex line which is fully contacted with the tantalum wire, so that the condition of open circuit cannot occur; the tantalum anode 4 is formed by pressing high specific volume tantalum powder, so that the capacitor can meet the requirements of small volume and high specific volume.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A small volume high specific volume power support capacitor, comprising:

the shell (1) is made of metal materials, is cylindrical, and is provided with a round hole at the top;

an insulating layer (2) wrapping the outer surface layer of the shell (1);

an amorphous oxide layer (3) coated on the inside of the housing (1);

a tantalum anode (4) disposed inside the housing (1);

a tantalum wire (5) with the lower end inserted into the tantalum anode (4);

a membrane (6) disposed between the amorphous oxide layer (3) and the tantalum anode (4);

a gasket (7) fixedly arranged at the bottom of the inner side of the shell (1);

a negative electrode (8), the upper end of which is fixed on the shell (1);

a capacitive plug (9) for sealing the housing (1), comprising:

an insulating plug seat (91);

a connecting post (92) fixedly arranged at the lower end of the insulating plug seat (91);

the supporting rod (93) is arc-shaped, and the lower end of the supporting rod is fixedly arranged at the upper end of the insulating plug seat (91);

a socket (94) fixed to an upper end of the support rod (93);

the lower end of the tantalum tube (10) is sleeved at the upper end of the tantalum wire (5), and the other end of the tantalum tube extends out of the shell (1);

a sealing layer (11) for the sealing connection of the tantalum tube (10) to the capacitor plug (9).

2. A small volume high specific volume power support capacitor as in claim 1, wherein: the centers of the plug seat (91), the connecting column (92) and the socket (94) are all provided with circular through holes.

3. A small volume high specific volume power support capacitor as in claim 1, wherein: the surface of the connecting column (92) is provided with threads.

4. A small volume high specific volume power support capacitor as in claim 2, wherein: the top of the shell (1) is provided with a circular hole, and the edge of the circular hole is provided with threads.

5. A small volume high specific volume power support capacitor as in claim 2, wherein: the inner wall of the tantalum tube (10) is provided with a wave-shaped convex line.

6. A small volume high specific volume power support capacitor as in claim 1, wherein: the receptacle (94) comprises a receptacle disc (941) and an interface (942), the receptacle disc (941) being circular and the interface (942) being arranged at an edge of the receptacle disc (941).

7. A small volume high specific volume power support capacitor as in claim 6, wherein: the socket disc (941) is also provided with a plurality of oval through holes.

8. A small volume high specific volume power support capacitor as in claim 1, wherein: the shell (1) is filled with electrolyte.

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