SOT high-density encapsulation mold structure

Abstract

The utility model discloses an SOT high-density packaging mold structure which comprises a small plate, a plurality of first T-shaped grooves distributed at equal intervals are vertically formed in one side of the small plate, a T-shaped block is movably connected in each first T-shaped groove, and a plurality of second T-shaped grooves matched with the T-shaped blocks are vertically formed in the bottom face of the other side of the small plate. A plurality of small plates are spliced through the T-shaped blocks and the second T-shaped grooves, the firmness of direct connection of the small plates is improved, the small plates are prevented from loosening, the T-shaped blocks are movably connected into the first T-shaped grooves through the arc-shaped grooves, the arc-shaped blocks and the third springs, the binding faces of the two small plates are tightly bound together, and the binding efficiency of the small plates is improved. A plurality of small plates are arranged in the T-shaped block, gaps among the small plates are reduced, the packaging density is improved, a plurality of first positioning blocks and second positioning blocks are telescopically connected in a cavity in the T-shaped block, a positioning groove matched with a second T-shaped groove is formed in the second T-shaped groove, and the T-shaped block is further fixed in the second T-shaped groove.

Description

Technical Field

[0001] The utility model relates to the technical field of SOT packaging, in particular to a high-density encapsulation die structure for SOT. Background Technique

[0002] SOT is a surface mount packaging form for devices with 5 pins or less (3 pins, 4 pins). It is currently widely used in the manufacturing of precision instrument components and has high requirements for processing equipment. In the prior art, multiple small plates carrying components are usually assembled into a large plate. However, since the small plates inside are directly butted together without being fixed to each other, there are large gaps between the small plates. Especially when subjected to collisions, the small plates are prone to dislocation, resulting in a low integrated packaging density. Content of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies existing in the prior art and to propose a high-density encapsulation die structure for SOT.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a high-density encapsulation die structure for SOT, including small plates. A plurality of equally spaced first T-shaped grooves are vertically opened on one side of the small plate, and a T-shaped block is movably connected in each of the first T-shaped grooves. A plurality of second T-shaped grooves adapted to the T-shaped blocks are vertically opened on the bottom surface of the other side of the small plate.

[0005] As a further description of the above technical scheme: a plurality of first through holes communicating with the first T-shaped grooves are horizontally opened on one side of the small plate, and a hollow shaft is rotatably inserted through the plurality of first through holes together. A sleeve hole horizontally penetrates through the side surface of each T-shaped block, and the T-shaped block is fixedly sleeved on the outer edge of the hollow shaft through the sleeve hole. A plurality of equally spaced positioning grooves are horizontally opened in each of the second T-shaped grooves.

[0006] As a further description of the above technical scheme: an arc-shaped groove concentric with the hollow shaft is opened in each of the two outermost first T-shaped grooves, and an arc-shaped block is movably connected in each of the arc-shaped grooves. The two arc-shaped blocks are fixed at both ends of the hollow shaft, and a third spring that abuts against and is fixed to the arc-shaped block is fixed in the arc-shaped groove.

[0007] As a further description of the above technical scheme: a cavity is provided in the T-shaped block, a limiting member is telescopically connected in the cavity, a plurality of equally spaced air pipes are radially communicated with the outside of the hollow shaft, and each air pipe communicates with one of the cavities. A second through hole communicating with one of the first T-shaped grooves is horizontally penetrated through one side of the small plate, a gas valve is horizontally screwed in the second through hole, the gas valve communicates with the hollow shaft, and a plug block is provided in the second through hole.

[0008] As a further description of the above technical solution: The limiting member includes a first sealing plate telescopically connected to both sides of the inner wall of the cavity. The top wall of the cavity is telescopically connected to a second sealing plate. Horizontally fixed on the side surface of the first sealing plate are a plurality of equally spaced first positioning blocks. Vertically fixed on the top surface of the second sealing plate are a plurality of equally spaced second positioning blocks. Horizontally penetrating through both sides of the cavity are a plurality of first positioning holes adapted to the first positioning blocks. Vertically penetrating through the top wall of the cavity are a plurality of second positioning holes adapted to the second positioning blocks. The first positioning blocks and the second positioning blocks are adapted to the positioning grooves.

[0009] As a further description of the above technical solution: Horizontally fixed between the first sealing plate and the side wall of the cavity are two mirror-symmetrical first springs. Vertically fixed between the second sealing plate and the top wall of the cavity are two mirror-symmetrical second springs.

[0010] The utility model has the following beneficial effects:

[0011] Compared with the prior art, for the structure of the SOT high-density encapsulation mold, by splicing multiple small plates using T-shaped blocks and second T-shaped grooves, the firmness of the direct connection of multiple small plates is improved, preventing the small plates from becoming loose. And the T-shaped blocks are movably connected in the first T-shaped grooves through arc-shaped grooves, arc-shaped blocks, and third springs, making the joint surfaces of the two small plates fit tightly together, reducing the gaps between multiple small plates, improving the encapsulation density. Also, multiple first positioning blocks and second positioning blocks are telescopically connected in the cavities of the T-shaped blocks, and positioning grooves adapted to them are provided in the second T-shaped grooves, further fixing the T-shaped blocks in the second T-shaped grooves. Description of the Drawings

[0012] Figure 1 is a three-dimensional overall structure diagram of a structure of an SOT high-density encapsulation mold proposed by the utility model;

[0013] Figure 2 is a bottom view of the overall structure of a structure of an SOT high-density encapsulation mold proposed by the utility model;

[0014] Figure 3 is a main sectional view of the connection between the first T-shaped block and the first T-shaped groove of a structure of an SOT high-density encapsulation mold proposed by the utility model;

[0015] Figure 4 is of a structure of an SOT high-density encapsulation mold proposed by the utility model Figure 3 and is an enlarged view of the structure at A in it.

[0016] Legend Explanation:

[0017] 1. Small plate; 2. First T-shaped groove; 3. T-shaped block; 4. Second T-shaped groove; 5. Cavity; 6. Hollow shaft; 7. First through hole; 8. Sleeve hole; 9. Air pipe; 10. First sealing plate; 11. Second through hole; 12. First positioning block; 13. Second positioning block; 14. Second sealing plate; 15. Second spring; 16. Second positioning hole; 17. First positioning hole; 18. First spring; 19. Plug block; 20. Air valve; 21. Arc groove; 22. Third spring; 23. Arc block. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Referring to Figures 1 to 4 , a SOT high-density encapsulation mold structure provided by the present invention includes a small plate 1. A plurality of equally spaced first T-shaped grooves 2 are vertically opened on one side of the small plate 1. Each first T-shaped groove 2 is movably connected with a T-shaped block 3. A plurality of second T-shaped grooves 4 adapted to the T-shaped blocks 3 are vertically opened on the bottom surface of the other side of the small plate 1. A plurality of first through holes 7 communicating with the first T-shaped grooves 2 are horizontally opened on one side of the small plate 1. A hollow shaft 6 is rotatably penetrated through the plurality of first through holes 7 together. A sleeve hole 8 is horizontally penetrated through the side surface of each T-shaped block 3. The T-shaped block 3 is fixedly sleeved on the outer edge of the hollow shaft 6 through the sleeve hole 8. A plurality of equally spaced positioning grooves are horizontally opened in each second T-shaped groove 4; Arc grooves 21 concentric with the hollow shaft 6 are opened in the two outermost first T-shaped grooves 2 respectively. Each arc groove 21 is movably connected with an arc block 23. The two arc blocks 23 are fixed at both ends of the hollow shaft 6. A third spring 22 that abuts against and is fixed to the arc block 23 is fixed in the arc groove 21; A cavity 5 is provided in the T-shaped block 3, and a limiting member is telescopically connected in the cavity 5. A plurality of equally spaced air pipes 9 are radially communicated with the outside of the hollow shaft 6. Each air pipe 9 communicates with a cavity 5. A second through hole 11 communicating with a first T-shaped groove 2 is horizontally penetrated through one side of the small plate 1. An air valve 20 is horizontally screwed in the second through hole 11. The air valve 20 communicates with the hollow shaft 6. A plug block 19 is provided in the second through hole 11;

[0020] The limiting member includes a first sealing plate 10 telescopically connected to both sides of the inner wall of the cavity 5. Two mirror-symmetrical first springs 18 are horizontally fixed together between the first sealing plate 10 and the side wall of the cavity 5. The top wall of the cavity 5 is telescopically connected to a second sealing plate 14. Two mirror-symmetrical second springs 15 are vertically fixed between the second sealing plate 14 and the top wall of the cavity 5. A plurality of equally spaced first positioning blocks 12 are horizontally fixed to the side surface of the first sealing plate 10. A plurality of equally spaced second positioning blocks 13 are vertically fixed to the top surface of the second sealing plate 14. A plurality of first positioning holes 17 adapted to the first positioning blocks 12 are horizontally penetrated through both sides of the cavity 5. A plurality of second positioning holes 16 adapted to the second positioning blocks 13 are vertically penetrated through the top wall of the cavity 5. The first positioning blocks 12 and the second positioning blocks 13 are adapted to the positioning grooves.

[0021] By splicing a plurality of small plates 1 using the T-shaped blocks 3 and the second T-shaped grooves 4, the firmness of the direct connection of the plurality of small plates 1 is improved, and the loosening of the small plates 1 is avoided. The T-shaped blocks 3 are movably connected to the first T-shaped grooves 2 through the arc-shaped grooves 21, the arc-shaped blocks 23 and the third springs 22, so that the fitting surfaces of the two small plates 1 are closely fitted together, reducing the gaps between the plurality of small plates 1 and improving the packaging density. A plurality of first positioning blocks 12 and second positioning blocks 13 are telescopically connected in the cavity 5 in the T-shaped blocks 3, and positioning grooves adapted thereto are provided in the second T-shaped grooves 4, further fixing the T-shaped blocks 3 in the second T-shaped grooves 4.

[0022] Working principle: During use, the T-shaped block 3 on one of the small plates 1 is turned downward, so that the T-shaped block 3 disengages from the first T-shaped groove 2 and is in a horizontal state. At the same time, the arc-shaped block 23 slides in the arc-shaped groove 21, compressing the third spring 22. Then, the second T-shaped groove 4 of another small plate 1 is docked with the T-shaped block 3 of the first small plate 1. After the docking is completed, the compressed third spring 22 exerts a reverse thrust on the arc-shaped block 23, making the two small plates 1 closely fit together, reducing the gap between the two plates. Then, the plug block 19 is taken out, and an inflation device is connected to the air valve 20 to inflate the air valve 20. The gas enters the cavity 5 of the T-shaped block 3 through the hollow shaft 6 and the air pipe 9. The gas pushes the first sealing plate 10 and the second sealing plate 14 to displace, so that the first sealing plate 10 and the second sealing plate 14 drive the first positioning blocks 12 and the second positioning blocks 13 respectively to be pushed into the positioning grooves in the second T-shaped groove 4, and at the same time, the first springs 18 and the second springs 15 are compressed.

[0023] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A SOT high-density encapsulation mold structure, including a small plate (1), characterized in that: On one side of the small plate (1), a plurality of first T-shaped grooves (2) evenly distributed at equal intervals are vertically formed. Each of the first T-shaped grooves (2) is movably connected with a T-shaped block (3). On the bottom surface of the other side of the small plate (1), a plurality of second T-shaped grooves (4) adapted to the T-shaped blocks (3) are vertically formed.

2. The SOT high-density encapsulation die structure according to claim 1, wherein: On one side of the small plate (1), a plurality of first through holes (7) communicating with the first T-shaped grooves (2) are horizontally formed. A hollow shaft (6) is rotatably inserted through the plurality of first through holes (7) together. A sleeve hole (8) horizontally penetrates through the side surface of each T-shaped block (3). The T-shaped block (3) is fixedly sleeved on the outer edge of the hollow shaft (6) through the sleeve hole (8). A plurality of positioning grooves evenly distributed at equal intervals are horizontally formed in each of the second T-shaped grooves (4).

3. The structure of a SOT high-density encapsulation mold according to claim 2, characterized in that: An arc-shaped groove (21) concentric with the hollow shaft (6) is formed in each of the two outermost first T-shaped grooves (2). An arc-shaped block (23) is movably connected in each of the arc-shaped grooves (21). The two arc-shaped blocks (23) are fixed at both ends of the hollow shaft (6). A third spring (22) in contact with and fixed to the arc-shaped block (23) is fixed in the arc-shaped groove (21).

4. A SOT high-density encapsulation mold structure according to claim 2, characterized in that: A cavity (5) is provided in the T-shaped block (3). A limiting member is telescopically connected in the cavity (5). A plurality of air pipes (9) evenly distributed at equal intervals are radially communicated with the outside of the hollow shaft (6). Each of the air pipes (9) communicates with one of the cavities (5). A second through hole (11) communicating with one of the first T-shaped grooves (2) horizontally penetrates through one side of the small plate (1). A gas valve (20) is horizontally screwed in the second through hole (11). The gas valve (20) communicates with the hollow shaft (6). A plug block (19) is provided in the second through hole (11).

5. The structure of an SOT high-density encapsulation mold according to claim 4, characterized in that: The limiting member includes first sealing plates (10) telescopically connected to both sides of the inner wall of the cavity (5). A second sealing plate (14) is telescopically connected to the top wall of the cavity (5). A plurality of first positioning blocks (12) evenly distributed at equal intervals are horizontally fixed to the side surface of the first sealing plate (10). A plurality of second positioning blocks (13) evenly distributed at equal intervals are vertically fixed to the top surface of the second sealing plate (14). A plurality of first positioning holes (17) adapted to the first positioning blocks (12) horizontally penetrate through both sides of the cavity (5). A plurality of second positioning holes (16) adapted to the second positioning blocks (13) vertically penetrate through the top wall of the cavity (5). The first positioning blocks (12) and the second positioning blocks (13) are adapted to the positioning grooves.

6. The structure of a SOT high-density encapsulation mold according to claim 5, characterized in that: Two mirror-symmetrical first springs (18) are horizontally fixed together between the first sealing plate (10) and the side wall of the cavity (5). Two mirror-symmetrical second springs (15) are vertically fixed between the second sealing plate (14) and the top wall of the cavity (5).

Images