CN216793698U

CN216793698U - SMD two schottky diodes

Info

Publication number: CN216793698U
Application number: CN202220279090.2U
Authority: CN
Inventors: 何海营; 黎广志; 张珽
Original assignee: Foshan Youkuang Semiconductor Technology Co ltd
Current assignee: Foshan Youkuang Semiconductor Technology Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-06-21
Anticipated expiration: 2032-02-11

Abstract

The utility model relates to a patch type double Schottky diode which comprises a double Schottky diode, wherein a patch is arranged on the surface of the double Schottky diode, a protection component is arranged on the surface of the patch, pin components extending to the outside of the protection component are arranged on two sides of the double Schottky diode, and the protection component comprises cushion pads fixedly arranged on the front side and the back side of the patch. This two schottky diodes of SMD, connect dedicated welding post through the lead angle line, during the welding, accessible welding post inserts the welding hole fast, will weld the post again and melt, fuse together with the welding hole, can realize the rapid welding, and connection stability is high, the joint strength has been increased substantially, the phenomenon that breaks away from is difficult for appearing, through at paster surface mounting blotter, paste the inner wall of protective housing with the blotter other end, effectual two schottky diodes to paster and paster inside carry out effectual protection, and service life is promoted.

Description

SMD two schottky diodes

Technical Field

The utility model relates to the technical field of double Schottky diodes, in particular to a patch type double Schottky diode.

Background

The special-based diode is divided into two packaging forms of a leaded type and a surface-mounted type, and the Schottky diode adopting the leaded type packaging is usually used as a high-frequency large-current rectifier diode, a fly-wheel diode or a protective diode. The Schottky pair transistors have three pin leading-out modes of connecting the cathodes of the two transistors, connecting the anodes of the two transistors and connecting the anode of one diode with the cathode of the other diode.

The conventional double-Schottky diode is unstable when pins are welded after connection, so that the pins are poor in contact and easy to separate, the protection performance is poor, and the service life of the double-Schottky diode is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a surface-mounted double-Schottky diode which has the advantages of stable welding, good protection and the like, and solves the problems that the pin contact is poor, the separation is easy to occur, the protection is poor and the service life of the double-Schottky diode is influenced because the existing double-Schottky diode is unstable when pins are welded after being connected.

In order to realize the purposes of stable welding and good protection, the utility model provides the following technical scheme: the utility model provides a two schottky diodes of SMD, includes two schottky diodes, two schottky diodes's surface is provided with the paster, the surface of paster is provided with protective assembly, two schottky diodes's both sides are provided with the pin subassembly that extends to protective assembly outside, protective assembly includes the blotter of fixed mounting at the positive and negative both sides of paster, blotter opposite side fixed mounting has protective housing, the pin subassembly includes the polar plate of fixed mounting in two schottky diode both sides, the fixed surface of polar plate installs the lead angle line that extends to protective housing outside, lead angle line other end fixed mounting has the insulating pad that contacts with protective housing, the bottom fixed mounting of insulating pad has the welding post.

Furthermore, the polar plate comprises a negative plate and a positive plate, the surface of the polar plate is provided with a positioning hole, and the surface of the lead wire is fixedly provided with a fixing pin extending into the positioning hole.

Furthermore, the lead wire is a flat copper bar, the number of the patches is two, and the two patches are wrapped on the surfaces of the double-Schottky diode and the polar plate.

Further, four angles of paster are all seted up for the chamfer, and the blotter is high temperature resistant insulating rubber pad, and the surface of every paster is equipped with 4 blotters, and the blotter is the matrix distribution.

Further, the protective housing is composed of two rectangular half shells, one sides of the two rectangular half shells are rotatably connected through a hinge, a clamping block is fixedly mounted on the other side of the two rectangular half shells, and a clamping groove matched with the lead wire is formed in the surface of the protective housing.

Further, the insulating pad is a circular insulating rubber pad, a through hole matched with the angle guiding line is formed in the insulating pad, the welding column is cylindrical, and the surface of the protective shell is fixedly provided with the heat conducting pipe.

Further, the heat pipe distributes in the both sides of protective housing, and the inner wall fixed mounting of heat pipe has the filter screen, and the heat pipe is the matrix form and distributes.

Compared with the prior art, the utility model provides a surface mount type double Schottky diode, which has the following beneficial effects:

this two schottky diodes of SMD, it is fixed with polar plate and lead angle line interlude through fixed needle, then connect dedicated welding post through the lead angle line, during the welding, accessible welding post inserts the welding hole fast, melt the welding post again, combine together with the welding hole, can realize the rapid welding, and connection stability is high, joint strength has been increased substantially, the phenomenon that breaks away from is difficult for appearing, furthermore, through at paster surface mounting blotter, then paste the inner wall of protecting casing with the blotter other end, can effectually carry out effectual protection to paster and the inside two schottky diodes of paster, and then life has been promoted, and finally, can realize timely heat dissipation through installing the heat pipe additional on protecting casing surface, and further life has been promoted.

Drawings

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

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic bottom view of the present invention.

In the figure: 1 double Schottky diode, 2 polar plates, 3 lead wires, 31 fixing pins, 4 patches, 5 cushion pads, 6 protective shells, 61 fixture blocks, 7 insulating pads, 8 welding columns, 9 heat conduction pipes and 10 filter screens.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a chip-type double schottky diode includes a double schottky diode 1, where the front and back sides of the double schottky diode 1 are both fixedly mounted with a chip 4, and four corners of the chip 4 are both formed as chamfers.

Set up protection component through the surface at paster 4 to reinforcing paster 4 and two schottky diode 1's protectiveness promotes life, is provided with the pin subassembly that extends to the protection component outside through the both sides at two schottky diode 1, realizes the high-speed welding, strengthens the purpose of connecting.

Protection component includes the blotter 5 of fixed mounting at 4 tow sides of paster, and the surface of every paster 4 is equipped with 4 blotters 5, and blotter 5 is the matrix distribution, and 5 opposite sides bonds of blotter have protective housing 6.

Wherein, blotter 5 is high temperature resistant insulating rubber pad, can effectual absorption outside vibrations to reduce the injury to two schottky diodes 1.

Secondly, protective housing 6 comprises two rectangle half shells, and one side of two rectangle half shells passes through the hinge rotation and connects, and the opposite side fixed mounting of two rectangle half shells has fixture block 61, and protective housing 6's surface is seted up the draw-in groove with 3 looks adaptations of angle of approach.

The pin subassembly includes polar plate 2 of fixed mounting in two schottky diode 1 positive and negative both sides, and the fixed surface of polar plate 2 installs and extends to the outside lead angle line 3 of

protective housing

6, and 3 other end fixed mounting of lead angle line have with protective housing 6 contact's insulating pad 7, and the bottom fixed mounting of insulating pad 7 has cylindric welding post 8.

The polar plate 2 comprises a cathode plate and an anode plate, a positioning hole is formed in the surface of the polar plate 2, and when the lead angle wire 3 is butted with the polar plate 2, a fixing pin 31 extending into the positioning hole is inserted into the surface of the lead angle wire 3 so as to fix the polar plate on the outer side.

And the lead angle wire 3 replaces a cylindrical copper strip through a flat copper strip, so that the lead angle wire is convenient to fix.

Secondly, insulating pad 7 adopts the circular shape insulating rubber pad to set up the perforation with 3 looks adaptations of angle of lead in insulating pad 7's inside, weld post 8 and be tin system post, after welding post 8 inserts the welding hole, utilize the flatiron to melt welding post 8 and can let welding post 8 and welding hole fuse into an organic whole.

In addition, heat conduction pipes 9 distributed in a matrix form are fixedly mounted on both sides of the protective case 6, and a filter screen 10 is fixedly mounted on the inner wall of the heat conduction pipe 9, so that heat is radiated through the heat conduction pipe 9.

This embodiment is when using, it is fixed with

polar plate

2 and 3 interlude of lead angle line through fixed needle 31, then connect dedicated welding post 8 through lead angle line 3, during the welding, insert the welding hole with welding post 8, again melt welding post 8, combine together with the welding hole, can realize the rapid weld, in addition, through 4 surface mounting blotters 5 at the paster, then paste the inner wall of protecting casing 6 with 5 other ends of blotters, with this realization to paster 4 and paster 4 inside two schottky diode 1 carry out effectual protection, realize in time dispelling the heat through heat pipe 9.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. The utility model provides a two schottky diodes of SMD, includes two schottky diodes (1), its characterized in that: a patch (4) is arranged on the surface of the double Schottky diode (1), a protection component is arranged on the surface of the patch (4), and pin components extending to the outside of the protection component are arranged on two sides of the double Schottky diode (1);

the protective component comprises cushion pads (5) fixedly arranged on the front surface and the back surface of the patch (4), a protective shell (6) is fixedly arranged on the other side of the cushion pads (5), and a heat conduction pipe (9) is fixedly arranged on the surface of the protective shell (6);

the pin subassembly includes polar plate (2) of fixed mounting in two schottky diode (1) both sides, the fixed surface of polar plate (2) installs lead wire (3) that extend to protective housing (6) outside, lead wire (3) other end fixed mounting has insulating pad (7) that contact with protective housing (6), the bottom fixed mounting of insulating pad (7) has welding post (8).

2. The surface mount type bi-schottky diode of claim 1, wherein: the polar plate (2) comprises a cathode plate and an anode plate, the surface of the polar plate (2) is provided with a positioning hole, and the surface of the lead wire (3) is fixedly provided with a fixing needle (31) extending into the positioning hole.

3. The surface mount type bi-schottky diode of claim 1, wherein: the lead wire (3) is a flat copper strip, the number of the patches (4) is two, and the two patches (4) are wrapped on the surfaces of the double-Schottky diode (1) and the polar plate (2).

4. The surface mount type bi-schottky diode of claim 1, wherein: four angles of paster (4) are all seted up for the chamfer, and blotter (5) are high temperature resistant insulating rubber pad, and the surface of every paster (4) is equipped with 4 blotters (5), and blotter (5) are matrix distribution.

5. The surface mount type bi-schottky diode of claim 1, wherein: protective housing (6) comprises two rectangle half shells, and one side of two rectangle half shells is passed through the hinge and is rotated the connection, and the opposite side fixed mounting of two rectangle half shells has fixture block (61), and the draw-in groove with lead wire (3) looks adaptation is seted up on the surface of protective housing (6).

6. The surface mount type bi-schottky diode of claim 1, wherein: insulating pad (7) are circular insulating rubber pad, and the perforation with lead angle line (3) looks adaptation is seted up to the inside of insulating pad (7), and welding post (8) are cylindric, the fixed surface of protective housing (6) installs heat pipe (9).

7. The SMD double-Schottky diode according to claim 6, wherein: the heat conduction pipes (9) are distributed on two sides of the protective shell (6), a filter screen (10) is fixedly mounted on the inner wall of each heat conduction pipe (9), and the heat conduction pipes (9) are distributed in a matrix form.