CN218351456U

CN218351456U - SOT-227 packaging device

Info

Publication number: CN218351456U
Application number: CN202222306123.0U
Authority: CN
Inventors: 张志祥; 明先霞; 刘新明; 王有利
Original assignee: Wuhu Maikewei Electromagnetic Technology Co ltd
Current assignee: Wuhu Maikewei Electromagnetic Technology Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-01-20
Anticipated expiration: 2032-08-31

Abstract

The utility model belongs to the technical field of the encapsulation is connected SOT-227 packaging hardware. Including encapsulation body (1), printing plate (2), set up a plurality of contacts (3) on encapsulation body (1), contact (3) are the nut, set up a plurality of pads (4) on printing plate (1), pad (4) set up to the structure that corresponds with contact (3) quantity and position, double-screw bolt (5) of dress are twisted in the activity respectively in every pad (4) position, every double-screw bolt (5) on printing plate (2) are twisted with encapsulation body (1) and are adorned and be connected corresponding one contact (3), printing plate (2) wherein two pads (4) are through copper foil (6) series connection. SOT-227 packaging hardware, simple structure can conveniently realize the connection and the dismantlement of encapsulation body and printing plate to connect reliably during the connection, the contact nature is good, the series connection of the pad of printing plate is realized to convenient and reliable simultaneously to the stability is good, satisfies operation requirement, low cost.

Description

SOT-227 packaging hardware

Technical Field

The utility model belongs to the technical field of the encapsulation is connected, more specifically say, relate to a SOT-227 packaging hardware.

Background

The SOT-227 packaging device has wide application range, has the volume between a single tube and a module, belongs to one of internal insulation packaging, and comprises the following electronic components: rectifier diode, fast recovery diode, IGBT, power module, thick mode resistance etc.. The packaging structure has the advantages of good heat dissipation, excellent anti-seismic performance and convenience in installation. However, the connection reliability of the package body and the circuit board of the conventional SOT-227 packaging device is insufficient, and meanwhile, in some use scenes, partial pads of the printed board are required to be connected in series, and the pads are directly connected by using wires, so that the packaging device is not attractive and has potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: aiming at the defects of the prior art, the SOT-227 packaging device is simple in structure, capable of conveniently realizing the connection and the disassembly of the packaging body and the printing plate, reliable in connection, good in contact performance, capable of conveniently and reliably realizing the series connection of the welding pads of the printing plate, good in stability, capable of meeting the use requirement and low in cost.

To solve the technical problem, the utility model discloses the technical scheme who takes does:

the utility model relates to a SOT-227 packaging hardware, including encapsulation body, printing plate, set up a plurality of contacts on the encapsulation body, the contact is the nut, sets up a plurality of pads on the printing plate, and the pad sets up to the structure that corresponds with contact quantity and position, and every pad position activity is twisted respectively and is adorned a double-screw bolt, and every double-screw bolt on the printing plate is twisted with a contact on the encapsulation body and is adorned the connection, and printing plate wherein two pads pass through copper foil series connection.

The packaging body and the printing plate are both arranged to be of a square structure, the contacts comprise four, the pads comprise four, the packaging body is close to each corner position and is respectively provided with one contact, and the printing plate is close to each corner position and is respectively provided with the pads.

When two of the pads on the printed board are connected in series through the copper foil, the two pads at the diagonal positions are connected through the copper foil.

When the two pads positioned at the opposite angle position on the printed board are connected through the copper foil, one end of the copper foil is fixedly connected with one pad through a screw, and the other end of the copper foil is fixedly connected with the other pad through another screw.

The encapsulation body on still set up a plurality of mountings, the mounting sets up to being L type structure, every mounting extends to the structure of a corresponding contact top position, every mounting extends to a corresponding contact top position and sets up the trompil.

When each stud on the printing plate is connected with a corresponding contact on the packaging body in a screwing mode, each stud penetrates through an opening of one fixing piece.

The surface of the packaging body is provided with a plurality of boss parts, each boss part is respectively provided with a concave mounting groove, and a contact is mounted in each mounting groove.

The fixing piece comprises a side edge part and a horizontal part which are arranged to be L-shaped structures,

the horizontal part of each fixing part extends to a position above a corresponding contact, and the side edge part of each fixing part is fixed on the packaging body.

Adopt the technical scheme of the utility model, theory of operation and beneficial effect as follows:

SOT-227 packaging hardware, packaging hardware including packaging body and printing plate, when the structure sets up, need realize printing plate and packaging body's connection. The structures of the package body and the printed board are respectively improved. Set up the contact on the encapsulation body, the contact is the nut, and set up the pad on the printing plate, and on the one hand, every pad position sets up the double-screw bolt respectively, and every double-screw bolt of being convenient for is connected with a contact that corresponds, realizes being connected of encapsulation body and printing plate, and on the other hand, wherein two pads that are in diagonal angle position on the printing plate pass through the copper foil and connect to realize the series connection of these two pads, connect reliably, satisfy the requirement. SOT-227 packaging hardware, simple structure can conveniently realize the connection and the dismantlement of encapsulation body and printing plate to connect reliably during the connection, the contact nature is good, convenient and reliable realizes the series connection of the pad of printing plate simultaneously, stability is good, satisfies operation requirement, low cost.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

fig. 1 is a schematic axial view of a package body of the SOT-227 package device of the present invention;

FIG. 2 is a schematic side cross-sectional structural view of a printing plate of the SOT-227 packaging apparatus of the present invention;

FIG. 3 is a schematic top view of a printing plate of the SOT-227 package according to the present invention;

in the drawings, the symbols are respectively: 1. a package body; 2. a printing plate; 3. a contact; 4. a bonding pad; 5. a stud; 6. copper foil; 7. a screw; 8. a fixing member; 9. opening a hole; 10. a boss portion; 11. mounting grooves; 12. a side edge portion; 13. a horizontal portion.

Detailed Description

The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be further described in detail, such as the shapes and structures of the components, the mutual positions and connections between the components, the functions and operation principles of the components, etc. according to the embodiments of the present invention:

as shown in fig. 1-3, the utility model relates to a SOT-227 packaging hardware, including packaging body 1, printing plate 2, packaging body 1 is last to set up a plurality of contacts 3, and contact 3 is the nut, sets up a plurality of pads 4 on the printing plate 2, and pad 4 sets up to the structure that corresponds with contact 3 quantity and position, and a double-screw bolt 5 of dress is twisted in the activity respectively in every pad 4 positions, and every double-screw bolt 5 on the printing plate 2 is twisted with packaging body 1 and is adorned with corresponding contact 3 and be connected, and printing plate 2 wherein two pads 4 pass through copper foil 6 series connection. The structure provides an improved technical scheme based on a unique concept aiming at the defects in the prior art. The packaging device comprises a packaging body and a printing plate, and when the structure is arranged, the connection between the printing plate and the packaging body needs to be realized. The structures of the package body and the printed board are respectively improved. Set up the contact on the encapsulation body, the contact is the nut, and set up the pad on the printing plate, and on the one hand, every pad position sets up the double-screw bolt respectively, and every double-screw bolt of being convenient for is connected with a contact that corresponds, realizes being connected of encapsulation body and printing plate, and on the other hand, wherein two pads that are in diagonal angle position on the printing plate pass through the copper foil and connect to realize the series connection of these two pads, connect reliably, satisfy the requirement. SOT-227 packaging hardware, simple structure can conveniently realize the connection and the dismantlement of encapsulation body and printing plate to connect reliably during the connection, the contact nature is good, convenient and reliable realizes the series connection of the pad of printing plate simultaneously, stability is good, satisfies operation requirement, low cost.

The packaging body 1 and the printing plate 2 are both of a square structure, the number of the contacts 3 is four, the number of the bonding pads 4 is four, the packaging body 1 is close to each corner position and is provided with one contact 3, and the printing plate 2 is close to each corner position and is provided with the bonding pads 4. Above-mentioned structure, encapsulation body and printing plate need connect the use, consequently, cooperation setting is realized to structures between them, and the structure setting back, and every double-screw bolt of being convenient for can be twisted the screw thread of installing a corresponding contact tender. Therefore, the reliable connection between the stud and the contact is ensured, and the communication between each pad and the corresponding contact is reliably realized.

When two of the pads 4 on the printed board 2 are connected in series through the copper foil 6, the two pads 4 at the diagonal positions are connected through the copper foil 6. When the two pads 4 positioned at the opposite angle position on the printed board 2 are connected through the copper foil 6, one end of the copper foil 6 is fixedly connected with one pad 4 through the screw 7, and the other end of the copper foil 6 is fixedly connected with the other pad 4 through the other screw 7. In the structure, the printed circuit board is a general glass fiber printed circuit board. The copper foil is used as a connecting material and is reliably connected with the bonding pads in series. Meanwhile, the studs on the printing plate can penetrate through the pad part of the printing plate, so that when the studs are screwed to the contacts, each stud is screwed from the hexagonal end at the other end, and therefore the studs and the contacts are conveniently and quickly connected, and the operation is convenient and fast.

The packaging body 1 is further provided with a plurality of fixing pieces 8, the fixing pieces 8 are arranged to be L-shaped structures, each fixing piece 8 extends to a structure above one corresponding contact 3, and each fixing piece 8 extends to a position above one corresponding contact 3 to form an opening 9. In the structure, the air inlet pipe is provided with the air inlet pipe,

when each stud 5 on the printed board 2 is screwed with a corresponding contact 3 on the packaging body 1, each stud 5 passes through an opening 9 of a fixing piece 8. Above-mentioned structure, on the one hand, the mounting plays the spacing effect of contact to in the mounting groove, avoids the contact to drop, and on the other hand, the trompil plays the fixed action to the double-screw bolt that passes, avoids the excessive slope of double-screw bolt.

The surface of the packaging body 1 is provided with a plurality of boss parts 10, each boss part 10 is respectively provided with a concave mounting groove, and each mounting groove is internally provided with one contact 3. The fixing member 8 includes a side portion 12 and a horizontal portion 13, and the side portion 12 and the horizontal portion 13 are formed in an L-shaped configuration. The horizontal portion 13 of each fixing member 8 extends to a position above a corresponding contact 3, and the side edge portion 12 of each fixing member 8 is fixed to the package body 1. In the structure, the side edge part is fixedly arranged on the packaging body, and the packaging body is a plastic piece. And the horizontal part plays the spacing effect of the contact in the mounting groove on the one hand, avoids the contact to drop, and on the other hand, the trompil on the horizontal part plays the fixed action to the double-screw bolt that passes, avoids the excessive slope of double-screw bolt.

SOT-227 packaging hardware, packaging hardware including packaging body and printing plate, when the structure sets up, need realize printing plate and packaging body's connection. The structures of the package body and the printed board are respectively improved. Set up the contact on the encapsulation body, the contact is the nut, and set up the pad on the printing plate, and on the one hand, every pad position sets up the double-screw bolt respectively, and every double-screw bolt of being convenient for is connected with a contact that corresponds, realizes being connected of encapsulation body and printing plate, and on the other hand, wherein two pads that are in diagonal angle position on the printing plate pass through the copper foil and connect to realize the series connection of these two pads, connect reliably, satisfy the requirement. SOT-227 packaging hardware, simple structure can conveniently realize the connection and the dismantlement of encapsulation body and printing plate to connect reliably during the connection, the contact nature is good, the series connection of the pad of printing plate is realized to convenient and reliable simultaneously to the stability is good, satisfies operation requirement, low cost.

The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the present invention can be implemented in various ways without modification, and the present invention is not limited by the above embodiments.

Claims

1. A SOT-227 package, comprising: including encapsulation body (1), printing plate (2), set up a plurality of contacts (3) on encapsulation body (1), contact (3) are the nut, set up a plurality of pads (4) on printing plate (2), pad (4) set up to the structure that corresponds with contact (3) quantity and position, double-screw bolt (5) of dress are twisted in the activity respectively in every pad (4) position, every double-screw bolt (5) on printing plate (2) are twisted with encapsulation body (1) and are adorned and be connected corresponding one contact (3), printing plate (2) wherein two pads (4) are through copper foil (6) series connection.

2. The SOT-227 packaging of claim 1, wherein: the packaging structure is characterized in that the packaging body (1) and the printing plate (2) are both arranged to be square structures, the number of the contacts (3) is four, the number of the pads (4) is four, the packaging body (1) is close to each corner position and is respectively provided with one contact (3), and the number of the printing plate (2) is close to each corner position and is respectively provided with one pad (4).

3. The SOT-227 package of claim 2, wherein: when two of the pads (4) on the printed board (2) are connected in series through the copper foil (6), the two pads (4) at the diagonal positions are connected through the copper foil (6).

4. The SOT-227 package of claim 3, wherein: when two pads (4) positioned at opposite angles on the printed board (2) are connected through the copper foil (6), one end of the copper foil (6) is fixedly connected with one pad (4) through the screw (7), and the other end of the copper foil (6) is fixedly connected with the other pad (4) through the other screw (7).

5. The SOT-227 packaging of claim 1 or 2, wherein: encapsulation body (1) on still set up a plurality of mounting (8), mounting (8) set up to be L type structure, every mounting (8) extend to the structure of a corresponding contact (3) top position, every mounting (8) extend to a corresponding contact (3) top position and set up trompil (9).

6. The SOT-227 packaged device of claim 5, wherein: when each stud (5) on the printed board (2) is connected with a corresponding contact (3) on the packaging body (1) in a screwing mode, each stud (5) penetrates through an opening (9) of one fixing piece (8).

7. The SOT-227 package of claim 1 or 2, wherein: the surface of the packaging body (1) is provided with a plurality of boss parts (10), each boss part (10) is respectively provided with a concave mounting groove (11), and a contact (3) is mounted in each mounting groove.

8. The SOT-227 packaging of claim 5, wherein: the fixing piece (8) comprises a side edge part (12) and a horizontal part (13), wherein the side edge part (12) and the horizontal part (13) are set to be L-shaped structures.

9. The SOT-227 packaging of claim 8, wherein: the horizontal part (13) of each fixing part (8) extends to a position above a corresponding contact (3), and the side edge part (12) of each fixing part (8) is fixed on the packaging body (1).