CN214254403U - Flat thyristor with built-in electrode lead - Google Patents

Abstract

The utility model discloses a built-in flat thyristor of electrode lead belongs to flat thyristor technical field, including the negative pole piece, the below of negative pole piece is equipped with the positive pole piece, is equipped with the thyristor chip between positive pole piece and the negative pole piece, and the lantern ring has been cup jointed in the outside of negative pole piece, and the lantern ring has been cup jointed down in the outside of positive pole piece, goes up the lantern ring and passes through stud with lower lantern ring to be connected, has seted up a plurality of louvres on the lower lantern ring. The utility model discloses a seted up the through wires hole on the negative pole piece, lead wire mechanism passes the through wires hole, and the assembly of the lead wire mechanism of being convenient for, the interior end of gate pole lead wire is connected with the gate pole of thyristor chip, and the interior end of cathode lead wire is connected with the negative pole of thyristor chip for flat thyristor pipeline circuit is connected, and hose protection gate pole lead wire and cathode lead wire prevent that gate pole lead wire and cathode lead wire from taking place the damage.

Description

Flat thyristor with built-in electrode lead

Technical Field

The utility model relates to a flat thyristor especially relates to a built-in flat thyristor of electrode lead wire, belongs to flat thyristor technical field.

Background

The thyristor is a high-power semiconductor device developed on the basis of the transistor, the appearance of the thyristor makes the semiconductor device expand to the forceful electric power field by the weak current field, the packaging form of the thyristor mainly has ceramic packaging, plastic packaging, metal casing packaging, bolt formula packaging and flat encapsulation, wherein, the medium and small current thyristor adopts ceramic packaging more, plastic packaging and metal casing packaging, the large current thyristor adopts bolt formula packaging and flat encapsulation more, but current flat thyristor heat dissipation is not good, lead to in time scattering and disappearing in a large amount of heats that advance thyristor work in-process produced, the life-span of thyristor has been reduced, the most integral type of adopting of current flat thyristor of while is not convenient for the change of internals, the utility model discloses a new solution is proposed to above problem.

How to research a flat-plate thyristor with a built-in electrode lead wire with good heat dissipation is a problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide a flat thyristor with a built-in electrode lead wire with good heat dissipation to solve the deficiencies of the prior art.

The purpose of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a built-in flat thyristor of electrode lead, includes the negative pole piece, the below of negative pole piece is equipped with the positive pole piece, the positive pole piece with be equipped with the thyristor chip between the negative pole piece, the lantern ring has been cup jointed in the outside of negative pole piece, the lantern ring has been cup jointed down in the outside of positive pole piece, go up the lantern ring with the lantern ring passes through stud to be connected down, a plurality of louvres have been seted up on the lantern ring down, the through wires hole has been seted up to the inside of negative pole piece, the inside of through wires hole is equipped with the lead device.

Preferably, the lead device comprises an insulating part, a hose is connected to the insulating part, and a gate lead and a cathode lead are sleeved inside the hose.

Preferably, one end of each of the gate lead and the cathode lead is connected with a terminal.

Preferably, an adjusting gasket is arranged between the upper lantern ring and the lower lantern ring.

Preferably, the top of the upper lantern ring is provided with a plurality of uniformly arranged counter bores.

Preferably, the stud is disposed inside the counterbore.

Preferably, the radiating holes are provided with dust screens.

Preferably, the upper collar is a square upper collar, and the lower collar is a square lower collar.

Preferably, four sides of the upper lantern ring and the lower lantern ring are rounded.

Preferably, the cathode block and the anode block are both provided with positioning holes.

The utility model has the advantages of: according to the utility model discloses a built-in flat thyristor of electrode lead wire, this built-in flat thyristor of electrode lead wire, the through wires hole has been seted up on the negative pole piece, lead wire mechanism passes the through wires hole, the assembly of the lead wire mechanism of being convenient for, the inner connection end of gate pole lead wire is connected with the gate pole of thyristor chip, the inner connection end of negative pole lead wire is connected with the negative pole of thyristor chip, make flat thyristor line connection, hose protection gate pole lead wire and negative pole lead wire, it takes place the damage to prevent gate pole lead wire and negative pole lead wire, the louvre is discharged the inside heat of flat thyristor simultaneously, the life-span of flat thyristor has been improved, when needing to change internals, pull down the lantern ring through stud, change the part of inside, make flat thyristor be convenient for the maintenance change, the cost is practiced thrift.

Drawings

Fig. 1 is a schematic view of the overall structure of a preferred embodiment of a planar thyristor with a built-in electrode lead according to the present invention;

fig. 2 is an internal schematic view of the overall structure of a preferred embodiment of a planar thyristor with a built-in electrode lead according to the present invention;

fig. 3 is an internal cross-sectional view of the overall structure of a preferred embodiment of a planar thyristor with a built-in electrode lead according to the present invention;

fig. 4 is a top view of an upper collar of a preferred embodiment of a planar thyristor with an electrode lead built-in according to the present invention;

fig. 5 is a schematic view of an upper collar structure of a preferred embodiment of a planar thyristor with a built-in electrode lead according to the present invention;

fig. 6 is a schematic structural view of a lead wire device according to a preferred embodiment of the flat thyristor with a built-in electrode lead wire of the present invention.

In the figure: 1-upper lantern ring, 2-lower lantern ring, 3-cathode block, 4-anode block, 5-thyristor chip, 6-stud, 7-adjusting gasket, 8-heat dissipation hole, 9-lead device, 10-wiring terminal, 11-countersunk hole, 12-hose, 13-gate lead, 14-cathode lead, 15-positioning hole, 16-insulator and 17-threading hole.

Detailed Description

In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-6, the flat thyristor with built-in electrode lead provided in this embodiment includes a cathode block 3, an anode block 4 is disposed below the cathode block 3, a thyristor chip 5 is disposed between the anode block 4 and the cathode block 3, an upper collar 1 is sleeved on the outer side of the cathode block 3, a lower collar 2 is sleeved on the outer side of the anode block 4, the upper collar 1 is connected with the lower collar 2 through a stud 6, a plurality of heat dissipation holes 8 are disposed on the lower collar 2, a threading hole 17 is disposed inside the cathode block 3, and a lead device 9 is disposed inside the threading hole 17. The through wire hole 17 has been seted up on the negative pole piece 3, lead wire mechanism 9 passes through the through wire hole 17, be convenient for the assembly of lead wire mechanism 9, the interior end of gate pole lead wire 13 is connected with the gate pole of thyristor chip 5, the interior end of cathode lead wire 14 is connected with the negative pole of thyristor chip 5, make flat thyristor line connection, hose 12 protects gate pole lead wire 13 and cathode lead wire 14, prevent that gate pole lead wire 13 and cathode lead wire 14 from taking place the damage, louvre 8 is discharged the inside heat of flat thyristor simultaneously, the life-span of flat thyristor has been improved, pull down lantern ring 1 through stud 6 when needing to change internals, change the part of inside, make flat thyristor be convenient for maintain and change, the cost is saved.

In the present embodiment, as shown in fig. 1-3, an adjusting gasket 7 is disposed between the upper collar 1 and the lower collar 2; a dust screen is arranged on the heat dissipation holes 8; the cathode block 3 and the anode block 4 are both provided with positioning holes 15. The adjusting gasket 7 is arranged between the upper sleeve ring 1 and the lower sleeve ring 2, the gap between the upper sleeve ring 1 and the lower sleeve ring 2 can be adjusted, the assembly is convenient, the dustproof net can prevent dust from entering the interior of the flat thyristor and reducing the service life of the flat thyristor, and the positioning holes 15 are convenient for the installation and the positioning of the flat thyristor.

In the present embodiment, as shown in fig. 2 and 5, the top of the upper lantern ring 1 is provided with a plurality of uniformly arranged counter bores 11; the stud 6 is disposed inside the counterbore 11. The stress of the uniformly arranged counter bores 11 is uniform, the additional bending stress of the double-end stud 6 is reduced, the service life of the double-end stud 6 is prolonged, and the double-end stud 6 is arranged in the counter bores 11, so that the upper lantern ring 1 can be conveniently mounted and dismounted, and the replacement of the inner device of the flat-plate thyristor can be conveniently realized.

In the present embodiment, as shown in fig. 4 and 6, the upper collar 1 is a square upper collar, and the lower collar 2 is a square lower collar; the four sides of the upper lantern ring 1 and the lower lantern ring 2 are rounded; the lead device 9 comprises an insulating piece 16, a hose 12 is connected to the insulating piece 16, and a gate lead 13 and a cathode lead 14 are sleeved inside the hose 12; one ends of the gate lead 13 and the cathode lead 14 are connected to the connection terminal 10. The upper lantern ring 1 and the lower lantern ring 2 are both square, and the upper lantern ring 1 and the lower lantern ring 2 are both subjected to rounding treatment, so that the flat-plate thyristor is convenient to install, the flexible pipe 12 protects the gate lead wire 13 and the cathode lead wire 14 from being damaged, and meanwhile, the gate lead wire 13 and the cathode lead wire 14 are connected with the wiring terminal 10, so that the flat-plate thyristor can work after the wiring terminal 10 is connected with the trigger circuit.

In this embodiment, as shown in fig. 1 to fig. 6, the operation process of the planar thyristor with a built-in electrode lead provided in this embodiment is as follows:

step 1: the lead mechanism 9 passes through the threading hole 17, the inner connection end of the gate lead 13 is connected with the gate of the thyristor chip 5, the inner connection end of the cathode lead 14 is connected with the cathode of the thyristor chip 5, the thyristor chip 5 is clamped between the cathode block 3 and the anode block 4, the upper lantern ring 1 is sleeved on the cathode block 3, and the lower lantern ring 2 is sleeved on the anode block 4;

step 2: an adjusting gasket 7 is laid between the upper sleeve ring 1 and the lower sleeve ring 2 and connected through a double-end stud 6, when internal parts need to be replaced, the double-end stud 6 is detached, and the parts in the flat-plate thyristor are replaced

In summary, in the present embodiment, according to the flat thyristor with the built-in electrode lead of the present embodiment, the adjusting gasket 7 is installed between the upper sleeve ring 1 and the lower sleeve ring 2, so that the gap between the upper sleeve ring 1 and the lower sleeve ring 2 can be adjusted, the assembly is facilitated, the dustproof mesh can prevent dust from entering the interior of the flat thyristor and reducing the service life of the flat thyristor, and the positioning hole 15 facilitates the installation and positioning of the flat thyristor; the stress of the uniformly arranged counter bores 11 is uniform, the additional bending stress of the double-end stud 6 is reduced, the service life of the double-end stud 6 is prolonged, and the double-end stud 6 is arranged in the counter bores 11, so that the upper lantern ring 1 can be conveniently mounted and dismounted, and the inner device of the flat-plate thyristor can be conveniently replaced; the upper lantern ring 1 and the lower lantern ring 2 are both square, and the upper lantern ring 1 and the lower lantern ring 2 are both subjected to rounding treatment, so that the flat-plate thyristor is convenient to install, the flexible pipe 12 protects the gate lead wire 13 and the cathode lead wire 14 from being damaged, and meanwhile, the gate lead wire 13 and the cathode lead wire 14 are connected with the wiring terminal 10, so that the flat-plate thyristor can work after the wiring terminal 10 is connected with the trigger circuit.

The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.

Claims (10)

1. The utility model provides a built-in flat thyristor of electrode lead, its characterized in that, includes negative pole piece (3), the below of negative pole piece (3) is equipped with positive pole piece (4), positive pole piece (4) with be equipped with thyristor chip (5) between negative pole piece (3), lantern ring (1) has been cup jointed in the outside of negative pole piece (3), lantern ring (2) have been cup jointed down in the outside of positive pole piece (4), go up lantern ring (1) with lantern ring (2) are connected through stud (6) down, a plurality of louvres (8) have been seted up on lantern ring (2) down, through wires hole (17) have been seted up to the inside of negative pole piece (3), the inside of through wires hole (17) is equipped with lead device (9).

2. The planar thyristor with built-in electrode lead wire according to claim 1, wherein the lead wire device (9) comprises an insulator (16), a flexible tube (12) is connected to the insulator (16), and the gate lead wire (13) and the cathode lead wire (14) are sleeved inside the flexible tube (12).

3. The planar thyristor with built-in electrode lead according to claim 2, wherein one end of the gate lead (13) and one end of the cathode lead (14) are connected to a terminal (10).

4. The planar thyristor with built-in electrode lead wire according to claim 1, wherein a regulating spacer (7) is provided between the upper sleeve ring (1) and the lower sleeve ring (2).

5. The planar thyristor with built-in electrode lead according to claim 1, wherein the top of the upper sleeve ring (1) is provided with a plurality of uniformly arranged counter bores (11).

6. The planar thyristor with built-in electrode lead according to claim 5, wherein the stud (6) is disposed inside the counterbore (11).

7. The planar thyristor with built-in electrode lead according to claim 1, wherein the heat dissipation hole (8) is provided with a dust screen.

8. The planar thyristor with built-in electrode lead wire according to claim 1, wherein the upper ring (1) is a square upper ring and the lower ring (2) is a square lower ring.

9. The planar thyristor with built-in electrode lead wire according to claim 1, wherein the four sides of the upper sleeve ring (1) and the lower sleeve ring (2) are rounded.

10. The flat thyristor of claim 1, wherein the cathode block (3) and the anode block (4) are provided with positioning holes (15).

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