CN219513097U - MOS tube with detachable pins - Google Patents

Abstract

The utility model relates to the technical field of semiconductor electronic elements, in particular to a MOS tube with detachable pins, which comprises a packaging tube, a chip and a plurality of pins, wherein the chip is arranged in the packaging tube, each pin comprises a pin body and connecting pieces, each connecting piece is positioned in the packaging tube and is electrically connected with the chip, the packaging tube is provided with a plurality of mounting holes corresponding to the connecting pieces one by one, and one end of each pin body penetrates through the corresponding mounting hole and is detachably connected with and electrically connected with the connecting piece. The utility model can simplify the pin maintenance process.

Description

MOS tube with detachable pins

Technical Field

The utility model relates to the technical field of semiconductor electronic elements, in particular to a MOS tube with detachable pins.

Background

The MOS transistor is a metal-oxide-semiconductor field effect transistor, alternatively referred to as a metal-insulator-semiconductor field effect transistor, separated by a thin layer of silicon dioxide. The MOS tube has multiple functions, such as a switching function and a blocking function, and the use of the MOS tube brings great convenience to electronic equipment and is often used in the fields of motor drive, power supply, battery protection and the like. In the use of MOS pipe, the pin can damage, fracture to lead to the unable use of MOS pipe, the process of maintenance pin is very loaded down with trivial details.

Disclosure of Invention

In order to simplify the pin maintenance process, the utility model provides the MOS tube with the detachable pins.

The MOS tube with the detachable pins adopts the following technical scheme:

the utility model provides a pin detachable MOS pipe, includes packing tube, chip and a plurality of pin, the chip is located in the packing tube, each the pin all includes pin body and connecting piece, each the connecting piece all is located in the packing tube and with chip electric connection, the packing tube be equipped with a plurality of mounting holes of connecting piece one-to-one, each pin body one end all passes the correspondence the mounting hole, with the connecting piece can dismantle and be connected and electric lead.

Through adopting above-mentioned technical scheme, in MOS pipe use, if the pin damages or breaks, can dismantle the pin from the mounting hole, change new pin, promoted the efficiency of maintenance pin to make the process of pin maintenance more convenient.

Optionally, the connecting piece is equipped with the notch orientation the spread groove of pin body, be equipped with the internal thread in the spread groove, pin body tip be equipped with the external screw thread of internal thread looks adaptation.

By adopting the technical scheme, the pins are connected with the connecting piece through threads, so that the pin maintenance process is more convenient; meanwhile, the threaded connection can also improve the tightness between the pin and the packaging tube, and strengthen

The waterproof performance of the MOS tube is improved, and the damage probability of the MOS tube is reduced.

Optionally, the connecting groove is made of metal.

Through adopting above-mentioned technical scheme, the spread groove is the metal material, can make the pin body be located when the spread groove, remain switching on with the connecting piece all the time, reduced the probability that produces the trouble in the MOS pipe use.

Optionally, the pin body is provided with an annular protruding portion which abuts against the outer wall of the packaging tube.

Through adopting above-mentioned technical scheme, annular protruding portion next-door neighbour body, and the diameter that the size is greater than the pin body for the pin is when damaging, and the position that the pin body was equipped with annular protruding portion is difficult to fracture in other positions of pin body compared, when the pin damaged, dismantles the pin through holding annular protruding portion, can make the process of pin maintenance more convenient. If the broken part of the pin is close to the packaging tube, the pin can still be detached through the annular protruding part. Meanwhile, the annular protruding part can improve sealing performance.

Optionally, the outer periphery of the annular protruding part is polygonal.

Through adopting above-mentioned technical scheme, with annular protruding portion stretch the periphery and establish to the polygon, can make the pin dismantle the process more convenient, promoted maintenance pin efficiency.

Optionally, a sealing gasket is arranged on one side of the annular protruding portion facing the packaging tube.

Through adopting above-mentioned technical scheme, after the pin installation is accomplished, sealed pad is located between annular protruding portion and the encapsulation pipe, has promoted the leakproofness between pin and the encapsulation pipe, has strengthened the waterproof performance of MOS pipe, has reduced the probability that the MOS pipe damaged.

Optionally, the packaging tube comprises a tube body with an opening at one side and a cover plate covered on the tube body.

Through adopting above-mentioned technical scheme, when making the MOS pipe, can install parts such as chip, pin on the body earlier, with the apron lid again on the body, can make the process of making the MOS pipe more convenient, promoted the efficiency of making the MOS pipe. Optionally, a groove is formed in one side, facing the cover plate, of the pipe body, a protrusion corresponding to the groove is formed in the cover plate, and the protrusion is inserted into the groove.

Through adopting above-mentioned technical scheme, the recess on the body corresponds with the arch on the apron, and recess and arch can make the more firm of MOS pipe encapsulation, have reduced the fault rate of MOS pipe to can strengthen the waterproof performance of encapsulation pipe.

Optionally, a sealant is arranged in the groove.

By adopting the technical scheme, the sealing glue can promote the sealing property between the pipe body and the cover plate, further enhance the waterproof performance of the packaging pipe and reduce the failure rate of the MOS pipe.

Optionally, a protective layer is arranged outside the pin.

Through adopting above-mentioned technical scheme, in MOS pipe use, the pin can isolate steam, has reduced the probability that the pin is corroded by steam, has reduced the fault rate of MOS pipe.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. in the use process of the MOS tube, when the pins are damaged or broken, the pins are detachably connected with the packaging tube, so that the pins can be directly replaced without replacing the MOS tube, and meanwhile, the annular protruding parts with polygonal peripheries are arranged on the pins, so that the efficiency of mounting and dismounting the pins is improved;

2. the pin adopts threaded connection, annular protruding portion and encapsulation tube to set up sealed the pad between, has promoted the leakproofness between encapsulation tube and the pin. The pipe body and the cover plate of the packaging pipe are spliced through the grooves and the protrusions, and meanwhile, sealant is arranged in the grooves, so that the tightness of the pipe body and the cover plate is improved. The waterproof performance of the MOS tube is enhanced, and the failure rate of the MOS tube is reduced;

3. the protective layer is arranged outside the pin, and in the using process of the MOS tube, the protective layer can isolate water vapor, so that the probability of corrosion of the pin is reduced, and the failure rate of the MOS tube is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a MOS transistor with a detachable pin in an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the structure of the MOS transistor with detachable pins shown in FIG. 1 with pins separated from the packaging tube;

fig. 3 is a cross-sectional view taken along line A-A of fig. 1.

Reference numerals illustrate: 1. packaging the tube; 11. a tube body; 111. a groove; 12. a cover plate; 121. a protrusion; 2. a chip; 3. pins; 31. a pin body; 311. an annular protruding portion; 32. a connecting piece; 321. a connecting groove; 4. a mounting hole; 5. a sealing gasket; 6. pin protecting sleeve.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 3. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. 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 fall within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The embodiment of the utility model discloses a MOS tube with detachable pins. Referring to fig. 1, the pin-detachable MOS transistor includes a package tube 1, a chip 2 (located inside the package tube 1), and a number of pins 3.

Referring to fig. 3, the chip 2 is disposed inside the packaging tube 1, the pins 3 include pin bodies 31 and connecting pieces 32, the connecting pieces 32 are electrically connected with the chip 2 and are all disposed inside the packaging tube 1, a plurality of mounting holes 4 corresponding to the connecting pieces 32 one by one are disposed on the packaging tube 1, one end of each pin body 31 is detachably connected with the connecting pieces 32 through the corresponding mounting hole 4, and the connecting pieces 32 are electrically conducted with the pin bodies 31.

When the MOS tube is used in some movable equipment, the MOS tube can vibrate in the use process of the equipment and generate hard collision with other parts, so that the pin 3 is damaged and broken, and the MOS tube cannot be normally used. The current solutions are: cutting off the pin 3, and re-welding; or directly replacing the whole MOS tube. The solution of the above solution is too cumbersome and inefficient. When the pins 3 are damaged and broken, the MOS tube in the embodiment can directly detach the pins 3 from the mounting holes 4 and replace the new pins 3, so that the maintenance process is more convenient, and the maintenance efficiency is greatly improved.

Referring to fig. 3, in order to facilitate the installation of the chip 2 in the package tube 1, the package tube 1 includes a tube body 11 opened at one side and a cover plate 12 covering the tube body 11. In this embodiment, the chip 2 is disposed on the inner wall of the tube 11, and in other embodiments, the chip 2 may also be disposed on the cover 12. By the arrangement, when the MOS tube is manufactured, the chip 2, the connecting piece 32 and other parts are firstly arranged in the tube body 11, and then the cover plate 12 is covered on the tube body 11, so that the process of manufacturing the MOS tube is more convenient, and the efficiency of manufacturing the MOS tube is improved. Meanwhile, when the inside of the MOS tube is maintained later, the cover plate 12 can be taken down for maintenance, so that the maintenance efficiency is improved. In other embodiments, the chip 2 may be packaged in a plastic package mode, and when the MOS transistor is used, the chip 2 needs to emit heat to the air through the plastic package layer, and in this embodiment, the chip 2 may directly emit heat to the air, so that the heat dissipation effect is better.

The pipe body 11 and the cover plate 12 can be connected by means of threads, adhesion, plugging and the like, and referring to fig. 3, in this embodiment, a groove 111 is provided on a side of the pipe body 11 facing the cover plate 12, a protrusion 121 corresponding to the groove 111 is provided on the cover plate 12, and the protrusion 121 is plugged into the groove 111. When the MOS tube is manufactured, the encapsulation of the MOS tube can be firmer, and the tightness between the tube body 11 and the cover plate 12 can be improved. And meanwhile, sealant is arranged in the groove 111, so that the tightness between the pipe body 11 and the cover plate 12 can be further improved. By the arrangement, the waterproof performance of the packaging tube 1 can be enhanced, and the failure rate of the MOS tube is reduced.

Referring to fig. 3, a connecting groove 321 is formed on the connecting piece 32, a notch of the connecting groove 321 faces the pin body 31 and is provided with an internal thread, one end of the pin body 31, which is close to the connecting groove 321, is provided with an external thread matched with the internal thread, and the pin body 31 is in threaded connection with the connecting piece 32 through the internal thread and the external thread. So set up, when changing pin 3, only change pin 3 through the screw thread, can further promote the convenience and the change efficiency of changing pin 3. Meanwhile, the tightness between the pin 3 and the packaging tube 1 can be improved through threaded connection, and the waterproof performance of the MOS tube is enhanced. In other embodiments, according to different usage scenarios of the MOS tube, the connection manner of the connection piece 32 and the pin body 31 may be a snap connection, an interference connection, a hinge connection, or the like.

The connecting member 32 may be made of a hard conductive material or a flexible conductive material, and in this embodiment, the connecting member 32 is made of a metal material.

In an alternative embodiment, the connecting piece 32 is a flexible lead, the connecting groove 321 is fixedly connected with the tube body 11, the connecting groove 321 and the tube body 11 can be integrally formed or connected in a split mode, an electrode is arranged in the connecting groove 321 and is located at the bottom of the connecting groove 321, and the chip 2 is connected with the electrode through the lead. After the pin body 31 is in threaded connection with the connecting groove 321, the pin body 31 is in contact conduction with the electrode, so that the pin body 31 is electrically connected with the chip 2. Since the leads are flexible, it is ensured that the connection 32 will not break due to severe vibration, so that the electrodes can be kept electrically conductive with the chip 2 at all times.

In the use, threaded connection between pin body 31 and spread groove 321 can become flexible for pin body 31 is kept away from with the electrode and the disconnection, thereby leads to pin body 31 and chip 2 disconnection, and in this embodiment, spread groove 321 is the metal material, and pin body 31 only has contacted spread groove 321, just can guarantee pin body 31 and chip 2 electric conduction, has reduced the probability that produces the trouble in the MOS pipe use.

In this embodiment, the pin body 31 is provided with an annular protruding portion 311, and referring to fig. 1, the annular protruding portion 311 abuts against the outer wall of the packaging tube 1. When the annular protruding portion 311 is not provided, when the fracture surface of the pin 3 is overlapped with the outer side wall of the tube 11, the remaining pins 3 are all located in the tube 11, so that it is too difficult to detach the pins 3. Referring to fig. 3, since the annular protruding portion 311 is adjacent to the pipe body 11 and the size is larger than the diameter of the pin body 31, when the pin 3 is damaged, the portion of the pin body 31 provided with the annular protruding portion 311 is not easy to break compared with other portions of the pin body 31, when the pin 3 is damaged, the annular protruding portion 311 is used as a stress point, and the pin 3 is dismounted by rotating the annular protruding portion 311, so that the maintenance process of the pin 3 is more convenient. Meanwhile, the annular protruding part 311 can also improve the tightness between the tube body 11 and the pin 3 and reduce the failure rate of the MOS tube.

The outer periphery of the annular protruding portion 311 is set to be polygonal, and the polygonal periphery can provide stress points when the pins 3 are replaced by the annular protruding portion 311, so that the pin 3 disassembling process is more convenient, and the pin 3 maintaining efficiency is improved.

Referring to fig. 2, the circumference of the annular protruding portion 311 is quadrangular in this embodiment, and in other embodiments, the circumference of the annular protruding portion 311 may be configured in other shapes, such as a circle, an ellipse, a polygon, etc.; and according to the different service scenarios of MOS pipe, can set up annular protruding portion 311 surface as the roughness, make pin 3 dismantlement process more convenient. The shape and the size of the annular protruding portion 311 can be set according to the requirement, and when one of the pin bodies 31 is rotated, the annular protruding portions 311 on two adjacent pin bodies 31 cannot interfere.

Referring to fig. 3, the annular protrusion 311 is provided with a gasket 5 facing the packaging tube 1, and the gasket 5 may be disposed in the connecting groove 321 or may be disposed outside the connecting groove 321, and in this embodiment, the gasket 5 is disposed in the connecting groove 321. After the pin 3 is installed, the sealing gasket 5 can also improve the tightness between the pin 3 and the packaging tube 1, further enhance the waterproof performance of the MOS tube and reduce the damage probability of the MOS tube. Meanwhile, the friction force between the pin body 31 and the connecting piece 32 can be increased by the sealing gasket 5, so that the pin body 31 and the connecting piece 32 are firmly connected, and the pin 3 is not easy to fall off in the use process of the MOS tube. The sealing gasket 5 can prevent the annular protruding part 311 from being in hard contact with the pipe body 11, and can protect the pipe body 11.

In the use process of the MOS tube, the pins 3 are corroded by water vapor, referring to fig. 3, in this embodiment, the pins 3 are provided with a protective layer made of rubber, silica gel and other materials, the protective layer wraps the pins 3 except for the welding parts, the protective layer can isolate the water vapor, and the corrosion probability of the pins 3 is reduced. In other embodiments, according to different usage scenarios of the MOS tube, the protection layer may be made of anti-corrosion metal, and completely wrap the pins 3.

The MOS tube with detachable pins provided by the embodiment has the working principle that:

when the pin 3 is damaged and broken, the damaged pin 3 can be detached from the mounting hole 4, and a new pin 3 is replaced, so that the pin 3 maintenance process is more convenient, and the pin 3 maintenance efficiency is improved. An annular protrusion 311 with a polygonal periphery is provided, the pins 3 can still be detached when the pins 3 break at a position close to the packaging tube 1, and the polygonal periphery can provide a stress point when being replaced. The pin body 31 is connected with the connecting piece 32 through threads, and the sealing gasket 5 is arranged between the annular protruding portion 311 and the connecting groove 321, so that the sealing performance between the pin body 31 and the packaging tube 1 is improved, and the waterproof performance of the MOS tube is enhanced. The packaging tube 1 comprises a cover plate 12 and a tube body 11, the cover plate 12 is spliced with the tube body 11, so that the efficiency of manufacturing the MOS tube can be improved, meanwhile, sealant is arranged at the spliced part, the tightness between the tube body 11 and the cover plate 12 is improved, and the waterproof performance of the MOS tube is enhanced. The pin 3 protective sleeve is arranged, so that the probability of corrosion damage to the pin 3 is reduced.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (9)

1. The MOS tube with the detachable pins is characterized by comprising a packaging tube (1), a chip (2) and a plurality of pins (3), wherein the chip (2) is arranged in the packaging tube (1), each pin (3) comprises a pin body (31) and a connecting piece (32), each connecting piece (32) is arranged in the packaging tube (1) and is electrically connected with the chip (2), the packaging tube (1) is provided with a plurality of mounting holes (4) which are in one-to-one correspondence with the connecting pieces (32), and one end of each pin body (31) penetrates through the corresponding mounting hole (4) and is detachably connected with the connecting piece (32) and electrically communicated with the connecting piece;

the pin is characterized in that the connecting piece (32) is provided with a connecting groove (321) with a notch facing the pin body (31), an internal thread is arranged in the connecting groove (321), and an external thread matched with the internal thread is arranged at the end part of the pin body (31).

2. The MOS transistor of claim 1, wherein the connecting groove (321) is made of metal.

3. A pin-detachable MOS tube according to claim 1, characterized in that the pin body (31) is provided with an annular protrusion (311) against the outer wall of the encapsulation tube (1).

4. A MOS tube with detachable pins as claimed in claim 3, characterized in that the outer circumference of the annular protrusion (311) is polygonal.

5. A pin-detachable MOS tube according to claim 3 or 4, characterized in that the annular protrusion (311) is provided with a sealing gasket (5) on the side facing the encapsulation tube (1).

6. A MOS tube with detachable pins according to claim 1, characterized in that the packaging tube (1) comprises a tube body (11) with an opening at one side and a cover plate (12) covering the tube body (11).

7. The MOS tube with the detachable pins according to claim 6, wherein a groove (111) is provided on a side of the tube body (11) facing the cover plate (12), a protrusion (121) corresponding to the groove (111) is provided on the cover plate (12), and the protrusion (121) is inserted into the groove (111).

8. The MOS tube with the detachable pins as claimed in claim 7, wherein a sealant is provided in the recess (111).

9. The MOS transistor of claim 1, wherein the pins (3) are provided with a protective layer.