CN218957719U

CN218957719U - Paster diode with pin direction 180 degrees adjustable

Info

Publication number: CN218957719U
Application number: CN202222428305.5U
Authority: CN
Inventors: 陈盛隆; 叶敏
Original assignee: Parker Microelectronics Shenzhen Co ltd
Current assignee: Parker Microelectronics Shenzhen Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-05-02
Anticipated expiration: 2032-09-09

Abstract

The utility model provides a patch diode with a pin direction adjustable by 180 degrees, which comprises a chip, a first pin and a second pin. The first pin includes a first section and a second section connected, and the second section is bent toward one side of the chip. The second pin comprises a front pin and a rear pin, the front pin comprises a third section and a fourth section which are connected, a through plug hole is formed in the fourth section, and the plug hole penetrates through the fourth section along the thickness direction of the chip. The rear pin comprises a fifth section and a sixth section which are connected, the fifth section is provided with a bulge, the bulge is inserted into the insertion hole, and the sixth section is in a bent shape. The plug hole and the bulge are plugged in two different directions in the axial direction of the plug hole, so that the sixth section and the second section are positioned on the same side of the chip or are respectively positioned on two opposite sides of the chip, the direction of the sixth section can be conveniently adjusted by 180 degrees relative to the second section, and the influence on the welding structure between the front pin and the chip can be reduced.

Description

Paster diode with pin direction 180 degrees adjustable

Technical Field

The utility model relates to the technical field of patch diodes, in particular to a patch diode with a pin direction adjustable by 180 degrees.

Background

The transient suppression diode (Transient Voltage Suppressor, TVS) is used as an effective protection device to effectively suppress transient interference. TVS is a special-function patch diode made of silicon semiconductor material, when two ends of TVS tube are subjected to instant high-energy impact, it can be quickly opened, at the same time, it can absorb surge current, and clamp the voltage between two ends of TVS tube at a preset value so as to ensure that the following accurate electronic component is protected from damage due to instant high-energy impact.

The patch diode is provided with two pins, the front sections of the two pins are welded on two opposite surfaces of the chip respectively, and the rear sections of the two pins are used for being welded with the PCB. In the patch diode in the prior art, the rear sections of the two pins face the same side of the chip or the opposite side of the chip, once the two pins are welded with the chip, if the direction of the pins needs to be changed, the pins need to be readjusted in the bending direction in a manual bending mode, the adjustment is inconvenient, the pins and the chip can be possibly influenced in welding, the pins are loosened, the radian of the pins after being re-bent is not easy to control, and the welding of the pins and the PCB in the later stage is influenced.

Therefore, it is necessary to provide a chip diode with a pin direction of 180 degrees adjustable to solve the above technical problems.

Disclosure of Invention

The utility model provides a patch diode with a pin direction of 180 degrees adjustable, which is beneficial to the 180-degree direction adjustment of one pin relative to the other pin.

The technical scheme of the utility model is as follows:

a patch diode with a pin direction adjustable 180 degrees, comprising:

a chip;

the first pin comprises a first section and a second section which are connected, the first section is connected with the chip, the second section is bent towards one side of the chip, and the second section is used for being welded with the PCB; the method comprises the steps of,

the second pin comprises a front pin and a rear pin, the front pin comprises a third section and a fourth section which are connected, the third section is connected with the chip, a through plug hole is formed in the fourth section, and the plug hole penetrates through the fourth section along the thickness direction of the chip; the rear pin comprises a fifth section and a sixth section which are connected, the fifth section is provided with a bulge, the bulge is inserted into the insertion hole, the sixth section is bent and used for being welded with the PCB, and the insertion hole and the bulge are inserted into the insertion hole in two different directions in the axial direction, so that the sixth section and the second section are located on the same side of the chip or on opposite sides of the chip respectively.

In the patch diode with the pin direction adjustable by 180 degrees, the patch diode further comprises a colloid for packaging protection, and the chip is arranged in the colloid; the plug hole and the bulge are simultaneously positioned in the colloid, or the plug hole and the bulge are simultaneously positioned outside the colloid.

In the patch diode with the pin direction adjustable by 180 degrees, the plug hole is arranged at the end part of the fourth section, the plug hole is provided with two opposite first openings, the two first openings are respectively positioned on two opposite surfaces of the fourth section, and the bulge is positioned on one side surface of the fifth section.

In the patch diode with the pin direction adjustable by 180 degrees, the bulge is a convex hull formed by stamping.

In the patch diode with the pin direction adjustable by 180 degrees, the height of the protrusion protruding out of the fifth section is larger than the distance between the two first openings.

In the patch diode with the pin direction adjustable by 180 degrees, the plug hole is cylindrical, and the bulge is cylindrical matched with the plug hole.

In the patch diode with the pin direction adjustable by 180 degrees, the cross section of the plug hole is round or polygonal, and the cross section of the protrusion is round or polygonal matched with the plug hole.

In the patch diode with the pin direction adjustable by 180 degrees, an insertion tube is arranged on the end face, far away from the third section, of the fourth section, two ends of the insertion tube respectively protrude out of two opposite side faces of the fourth section, an inner cavity of the insertion tube forms an insertion hole, a second opening is formed in the tube wall of the insertion tube, the second opening faces the fifth section, and the second opening extends along the axial direction of the insertion tube and is communicated with two ends of the insertion tube; the bulge is columnar, is positioned on the end face of the fifth section, and two ends of the bulge are respectively protruded out of two opposite side faces of the fifth section.

In the patch diode with the pin direction adjustable by 180 degrees, the cross section of the plug hole is a circle with an opening, and the cross section of the bulge is a circle matched with the plug hole; the second opening has a size smaller than the diameter of the projection in the circumferential direction of the insertion tube.

In the patch diode with the pin direction adjustable by 180 degrees, the plug hole is in interference fit with the protrusion.

Compared with the prior art, the utility model has the beneficial effects that: according to the patch diode with the 180-degree adjustable pin direction, after the first pin and the second pin are welded with the chip, the relative positions of the sixth section and the second section can be changed through the insertion connection of the insertion hole and the protrusions in two different directions in the axial direction of the insertion hole, so that the sixth section and the second section are positioned on the same side of the chip or are respectively positioned on two opposite sides of the chip, namely, the sixth section can be conveniently adjusted in the 180-degree direction relative to the second section; in the adjustment process, the influence on the welding structure between the front pin and the chip can be reduced, and meanwhile, the bending radian of the sixth section after adjustment can not be changed, so that the welding between the sixth section and other parts in the later stage can not be influenced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments are briefly described below, and the drawings in the following description are only drawings corresponding to some embodiments of the present utility model.

Fig. 1 is a schematic cross-sectional structure of a patch diode according to a first preferred embodiment of the present utility model.

Fig. 2 is a schematic cross-sectional structure of another state of the patch diode according to the first preferred embodiment of the present utility model.

Fig. 3 is a schematic side view illustrating an exploded structure of a second pin of the chip diode according to the first preferred embodiment of the present utility model.

Fig. 4 is a schematic cross-sectional structure of a patch diode according to a second preferred embodiment of the present utility model.

Fig. 5 is a schematic cross-sectional structure of another state of the patch diode according to the second preferred embodiment of the present utility model.

Fig. 6 is a schematic side view illustrating an exploded structure of a second pin of a chip diode according to a second preferred embodiment of the present utility model.

Fig. 7 is a schematic top view illustrating an exploded structure of a second pin of a chip diode according to a second preferred embodiment of the present utility model.

Wherein, the identifications of fig. 1, 2 and 3 are as follows:

11. the chip is provided with a plurality of channels,

12. the first pins 121, the first segments 122, the second segments,

13. a second pin is provided for the second pin,

131. the front pin is provided with a pin hole,

1311. in the third section of the process, the third section,

1312. fourth segment, 13121, mating holes, 13122, first openings,

132. the rear pin is provided with a pin,

1321. the fifth section, 13211, the protrusions,

1322. in the sixth stage, the third stage,

14. and (5) colloid.

The designations of fig. 4, 5, 6 and 7 are as follows:

21. the chip is provided with a plurality of channels,

22. the first pin, 221, the first segment, 222, the second segment,

23. a second pin is provided for the second pin,

231. the front pin is provided with a pin hole,

2311. in the third section of the process, the third section,

2312. in the fourth stage, the third stage,

2313. the plug-in hole is provided with a plurality of plug-in holes,

2314. a plug-in pipe 23141, a second opening,

232. the rear pin is provided with a pin,

2321. in the fifth stage, the third stage,

2322. in the sixth stage, the third stage,

2323. a protrusion.

In the drawings, like structural elements are denoted by like reference numerals.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms of directions used in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are used for explaining and understanding the present utility model only with reference to the orientation of the drawings, and are not intended to limit the present utility model.

The words "first," "second," and the like in the terminology of the present utility model are used for descriptive purposes only and are not to be construed as indicating or implying relative importance and not as limiting the order of precedence.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The following is a preferred embodiment of a patch diode with a pin direction adjustable by 180 degrees, which can solve the above technical problems.

Referring to fig. 1, 2 and 3, a first preferred embodiment of the present utility model provides a patch diode with a pin direction adjustable by 180 degrees, which includes a chip 11, a first pin 12 and a second pin 13. The first lead 12 includes a first section 121 and a second section 122 connected, the first section 121 is connected to the chip 11, the second section 122 is bent toward one side of the chip 11, and the second section 122 is soldered to the PCB. The second pin 13 includes a front pin 131 and a rear pin 132, the front pin 131 includes a third section 1311 and a fourth section 1312 connected to each other, the third section 1311 is connected to the chip 11, a through socket 13121 is provided on the fourth section 1312, and the socket 13121 penetrates through the fourth section 1312 along a thickness direction of the chip 11. The rear pin 132 includes a fifth segment 1321 and a sixth segment 1322 connected to each other, the fifth segment 1321 is provided with a protrusion 13211, the protrusion 13211 is inserted into the insertion hole 13121, and the sixth segment 1322 is bent and is used for welding with a PCB board. The insertion hole 13121 and the protrusion 13211 are inserted in two different directions in the axial direction of the insertion hole 13121, so that the sixth segment 1322 and the second segment 122 are located on the same side of the chip 11 or on opposite sides of the chip 11, respectively.

According to the patch diode with the adjustable pin direction of 180 degrees, after the first pin 12 and the second pin 13 are welded with the chip 11, the relative positions of the sixth segment 1322 and the second segment 122 can be changed through the plugging of the plugging hole 13121 and the bulge 13211 in two different directions in the axial direction of the plugging hole 13121, so that the sixth segment 1322 and the second segment 122 are positioned on the same side of the chip 11 or are respectively positioned on two opposite sides of the chip 11, namely, the sixth segment 1322 can be conveniently adjusted in the direction of 180 degrees relative to the second segment 122; in the adjustment process, the influence on the welding structure between the front pins 131 and the chip 11 can be reduced, and meanwhile, the bending radian of the sixth section 1322 after adjustment is not changed, so that the welding between the sixth section 1322 and other components in the later stage is not influenced.

Referring to fig. 1, the chip diode further includes a molding compound 14 for packaging protection, the chip 11 is disposed in the molding compound 14, and the socket holes 13121 and the bumps 13211 are located in the molding compound 14 at the same time. In this structure, by encapsulating both the insertion hole 13121 and the protrusion 13211 in the colloid 14, the insertion hole 13121 and the protrusion 13211 are not separated, and the structure is more stable.

In other embodiments, the plug hole 13121 and the protrusion 13211 may be located outside the gel 14 at the same time, as desired. With this structure, even if the encapsulation of the chip 11, the first lead 12 and the second lead 13 by the colloid 14 is completed, the relative positions of the sixth segment 1322 and the second segment 122 can be continuously changed, so as to meet the user requirement, which is more convenient.

Referring to fig. 3, the plugging hole 13121 is disposed at an end of the fourth section 1312, the plugging hole 13121 has two opposite first openings 13122, the two first openings 13122 are respectively located on two opposite sides of the fourth section 1312, and the protrusion 13211 is located on one side of the fifth section 1321. With this structure, during the machining process, only one insertion hole 13121 needs to be dug at the end of the fourth section 1312, and one protrusion 13211 is provided on one side of the fifth section 1321, so that the machining is simple.

With continued reference to fig. 3, the protrusion 13211 is a convex hull formed by stamping. The structure is more convenient to process.

In other embodiments, the protrusion 13211 may be provided to protrude from the fifth section 1321 by a height greater than the distance between the two first openings 13122. With this structure, the protrusion 13211 is made not to easily fall off from the insertion hole 13121.

In other embodiments, the plug aperture 13121 may be configured as a cylinder and the boss 13211 may be configured as a cylinder that mates with the plug aperture 13121. This configuration allows the boss 13211 to be more stably inserted into the insertion hole 13121.

In other embodiments, the cross-section of the plug hole 13121 may be configured as a circle and the cross-section of the protrusion 13211 may be configured as a circle that mates with the plug hole 13121. This configuration facilitates insertion of the boss 13211 into the socket 13121. Alternatively, the cross section of the socket 13121 may be provided as a polygon, and the cross section of the protrusion 13211 is a polygon that matches the socket 13121. With this structure, the positioning insertion of the boss 13211 into the plug hole 13121 is facilitated.

The preparation process of the first preferred embodiment of the present utility model:

1. soldering the first section 121 of the first pin 12 with the chip 11;

2. soldering the third segment 1311 of the front lead 231 with the chip 11;

3. the plugging direction of the plugging holes 13121 and the protrusions 13211 is adjusted as required so that the sixth segment 1322 and the second segment 122 are positioned on the same side of the chip 11 or on opposite sides of the chip 11, respectively;

4. the chip 11, the first pins 12 and the second pins 23 are injected with glue to form the encapsulated glue 14.

Referring to fig. 4, 5, 6 and 7, a second preferred embodiment of the present utility model provides a patch diode with a pin direction adjustable by 180 degrees, which includes a chip 21, a first pin 22 and a second pin 23. The first lead 22 includes a first section 221 and a second section 222 connected to each other, the first section 221 is connected to the chip 21, the second section 222 is bent toward one side of the chip 21, and the second section 222 is soldered to the PCB. The second pin 23 includes a front pin 231 and a rear pin 232, the front pin 231 includes a third segment 2311 and a fourth segment 2312 connected to each other, the third segment 2311 is connected to the chip 21, a through socket 2313 is provided on the fourth segment 2312, and the socket 2313 penetrates the fourth segment 2312 along a thickness direction of the chip 21. The rear pin 232 includes a fifth segment 2321 and a sixth segment 2322, the fifth segment 2321 is provided with a protrusion 2323, the protrusion 2323 is inserted into the insertion hole 2313, and the sixth segment 2322 is bent and used for being welded with the PCB board. The plugging hole 2313 and the protrusion 2323 are plugged in two different directions in the axial direction of the plugging hole 2313, so that the sixth segment 2322 and the second segment 222 are located on the same side of the chip 21 or are located on two opposite sides of the chip 21 respectively.

According to the patch diode with the adjustable pin direction of 180 degrees, after the first pin 22 and the second pin 23 are welded with the chip 21, the relative positions of the sixth section 2322 and the second section 222 can be changed through the plugging of the plugging hole 2313 and the protrusions 2323 in two different directions in the axial direction of the plugging hole 2313, so that the sixth section 2322 and the second section 222 are positioned on the same side of the chip 21 or are respectively positioned on two opposite sides of the chip 21, namely, the direction of the sixth section 2322 can be conveniently adjusted by 180 degrees relative to the second section 222; and in the adjustment process, the influence on the welding structure between the front pin 231 and the chip 21 can be reduced, and meanwhile, the bending radian of the sixth section 2322 after adjustment can not be changed, and the welding between the sixth section 2322 and other components in the later stage can not be influenced.

Please refer to fig. 6 and fig. 7, and also refer to fig. 4. The end surface of the fourth segment 2312 far away from the third segment 2311 is provided with a plugging tube 2314, two ends of the plugging tube 2314 protrude out of two opposite side surfaces of the fourth segment 2312 respectively, an inner cavity of the plugging tube 2314 forms a plugging hole 2313, a second opening 23141 is formed in the tube wall of the plugging tube 2314, the second opening 23141 faces the fifth segment 2321, and the second opening 23141 extends along the axial direction of the plugging tube 2314 and is communicated with two ends of the plugging tube 2314. The protrusion 2323 is columnar, and is located at an end face of the fifth segment 2321, and two ends of the protrusion protrude from two opposite side faces of the fifth segment 2321 respectively. With this structure, the lengths of the protrusions 2323 and the socket 2314 can be made longer, so that the protrusions 2323 and the socket 2314 can be plugged more stably, and the protrusions 2323 can be plugged into the socket 2314 more easily because the socket 2314 has the second opening 23141.

Referring to fig. 7, the cross section of the plugging hole 2313 is a circle with an opening, and the cross section of the protrusion 2323 is a circle matched with the plugging hole 2313. The second opening 23141 is smaller in size than the diameter of the boss 2323 in the circumferential direction of the plug tube 2314. The structure enables the wrapping area of the plug tube 2314 to the boss 2323 to be large enough, so that the plug tube 2314 is more stable in connection with the boss 2323.

Referring to fig. 7, the plug hole 2313 is in interference fit with the boss 2323. The structure makes the plugging method of the plugging tube 2314 and the boss 2323 simple and the plugging state stable.

The preparation process of the second preferred embodiment of the present utility model is similar to that of the first preferred embodiment, and will not be repeated here.

In summary, although the present utility model has been described with reference to the preferred embodiments, the scope of the utility model is not limited thereto, and any person skilled in the art who is skilled in the art should make equivalent substitutions or modifications according to the technical scheme of the present utility model within the scope of the present utility model.

Claims

1. A patch diode with a pin direction adjustable 180 degrees, comprising:

a chip;

2. The patch diode with the pin direction adjustable by 180 degrees according to claim 1, wherein the patch diode further comprises a colloid for packaging protection, and the chip is arranged in the colloid; the plug hole and the bulge are simultaneously positioned in the colloid, or the plug hole and the bulge are simultaneously positioned outside the colloid.

3. The 180 degree pin direction adjustable patch diode of claim 1, wherein the socket is disposed at an end of the fourth segment, the socket having two opposing first openings, the two first openings being located on two opposing faces of the fourth segment, respectively, and the protrusion being located on one side of the fifth segment.

4. A pin direction 180 degree adjustable patch diode as claimed in claim 3 wherein said protrusion is a stamped convex hull.

5. A patch diode with a pin direction of 180 degrees adjustable according to claim 3, wherein the height of said protrusion protruding from said fifth section is greater than the distance between two of said first openings.

6. A patch diode with a pin direction of 180 degrees adjustable according to claim 3, wherein the socket hole is cylindrical, and the protrusion is cylindrical matching the socket hole.

7. The patch diode with the pin direction adjustable by 180 degrees according to claim 6, wherein the cross section of the plug hole is circular or polygonal, and the cross section of the protrusion is circular or polygonal matched with the plug hole.

8. The patch diode with the pin direction adjustable by 180 degrees according to claim 1, wherein an insertion tube is arranged on the end face, far away from the third section, of the fourth section, two ends of the insertion tube respectively protrude out of two opposite side faces of the fourth section, an inner cavity of the insertion tube forms the insertion hole, a second opening is arranged on the tube wall of the insertion tube, the second opening faces the fifth section, and the second opening extends along the axial direction of the insertion tube and is communicated with two ends of the insertion tube; the bulge is columnar, is positioned on the end face of the fifth section, and two ends of the bulge are respectively protruded out of two opposite side faces of the fifth section.

9. The patch diode with the pin direction adjustable by 180 degrees according to claim 8, wherein the cross section of the plug hole is a circle with an opening, and the cross section of the protrusion is a circle matched with the plug hole; the second opening has a size smaller than the diameter of the projection in the circumferential direction of the insertion tube.

10. The 180 degree pin direction adjustable patch diode of claim 8, wherein the socket hole is interference fit with the protrusion.