Integrated circuit packaging outer structure

Abstract

The utility model discloses an integrated circuit packaging outer structure which comprises a chip and pins. The LED lamp further comprises an upper shell, a lower shell, heat dissipation fins, a positioning structure and an installation structure. The chip is located in a space defined by the upper shell and the lower shell and is fixedly connected with the upper shell; the plurality of pins are uniformly distributed on the front side and the rear side of the lower shell; a rectangular limiting shoulder is arranged on the lower shell; the plurality of radiating fins are distributed on the upper surface of the upper shell; the positioning structure comprises a plurality of positioning blocks which are evenly distributed on the front side and the rear side of the upper shell, and positioning grooves capable of containing the positioning blocks are formed in the limiting shoulders. According to the utility model, through a detachable installation structure, rapid separation of the upper shell and the lower shell is realized, so that when faults occur at the end parts of the pins and packaged internal elements, the pins and the packaged internal elements can be disassembled for detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit technical field, specifically point to a kind of integrated circuit package outer structure. BACKGROUND

[0002] The integrated circuit package not only plays the role of electrical connection between bonding point in integrated circuit chip and outside, but also provides a stable and reliable working environment for integrated circuit chip, which plays the role of mechanical or environmental protection for integrated circuit chip, so that integrated circuit chip can play normal function and ensure high stability and reliability.

[0003] The quality of integrated circuit package is good or bad, which is related to the performance of integrated circuit as a whole. Therefore, the package should have strong mechanical properties, good electrical properties, heat dissipation properties and chemical stability. In actual use, in order to ensure the safe operation of the chip, a closed package scheme is usually used to lock the chip completely in the package shell, but when the pins have poor contact and other problems in use, the closed shell cannot detect the end fault of the corresponding pin and repair, and the flexibility is low. SUMMARY

[0004] The utility model solves the above-mentioned technical problem that the closed shell cannot detect the end fault of the faulty pin and repair, and provides an integrated circuit package outer structure.

[0005] To solve the above technical problems, the utility model provides a technical scheme: an integrated circuit package outer structure, comprising a chip and a pin; further comprising:

[0006] An upper shell and a lower shell; the chip is located in the space enclosed by the upper shell and the lower shell, and is fixedly connected with the upper shell; the pins are evenly distributed on the front and rear sides of the lower shell; a rectangular limiting shoulder is arranged on the lower shell;

[0007] A heat dissipation fin, which is arranged on the upper surface of the upper shell;

[0008] A positioning structure; comprising a plurality of positioning blocks arranged on the front and rear sides of the upper shell, and a positioning groove arranged on the limiting shoulder and capable of accommodating the positioning blocks;

[0009] An installation structure; comprising a fitting circular groove arranged on both sides of the limiting shoulder, a hollow cylinder arranged on both sides of the upper shell and capable of entering the fitting circular groove, and a threaded hole arranged on both sides of the upper shell and capable of communicating with the hollow cylinder; a screw rod is threadedly connected in the threaded hole; a blocking tooth is movably arranged in the hollow cylinder, and a circular hole corresponding to the blocking tooth is arranged on both sides of the blocking tooth; a circular hole two corresponding to the circular hole is arranged in the limiting shoulder; when the screw rod extends into the hollow cylinder, the blocking tooth can be pushed out of the circular hole and into the circular hole two.

[0010] Further, the heat dissipation fins gradually decrease in spacing from the two ends to the middle.

[0011] Further, the positioning blocks, the shapes, positions and numbers of the positioning grooves correspond to each other, and rubber layers are arranged outside the positioning blocks.

[0012] Further, both sides of the upper shell are provided with operation grooves corresponding to the threaded holes, and the screw rods are located in the operation grooves.

[0013] Further, the hollow cylinder is provided with symmetrical arc-shaped plates inside, the blocking teeth are located on the outer sides of the corresponding arc-shaped plates, and springs are arranged between the arc-shaped plates and the inner sides of the hollow cylinder.

[0014] Further, the two round holes are in communication with the corresponding assembly circular grooves.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The upper shell and the lower shell are embedded, are installed through a plurality of corresponding positioning blocks and positioning grooves, are firmly installed in the horizontal direction, and are quickly separated through the detachable installation structure, so that the upper shell and the lower shell can be disassembled for detection when the pin end portion and the internal elements of the package are faulty. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structural schematic diagram of the utility model.

[0018] Figure 2 is the structural schematic diagram of the lower shell and the limiting shoulder of the utility model.

[0019] Figure 3 is the structural schematic diagram of the upper shell of the utility model.

[0020] Figure 4 is the structural schematic diagram of the limiting shoulder of the utility model.

[0021] As shown in the drawings: 1, pin, 2, upper shell, 3, lower shell, 4, heat dissipation fin, 5, positioning block, 6, positioning groove, 7, limiting shoulder, 8, hollow cylinder, 9, threaded hole, 10, screw rod, 11, blocking tooth, 12, round hole, 13, operation groove, 14, arc-shaped plate, 15, round hole two, 16, assembly circular groove. DETAILED DESCRIPTION

[0022] The utility model will be further described in detail in combination with the drawings.

[0023] Example one, in combination with the drawings Figure 1 , 2, 3, 4, an integrated circuit package outer structure, comprising a chip and a pin 1;

[0024] The upper shell 2 and the lower shell 3; the chip is located in the space enclosed by the upper shell 2 and the lower shell 3, and is fixedly connected with the upper shell 2, realizing protection of the chip, and there is a space between the chip and the lower shell 3, providing a heat dissipation space; the pin 1 is provided with a plurality of pins, which are uniformly distributed on the front and rear sides of the lower shell 3, and are used for connecting with the external circuit; the lower shell 3 is provided with a rectangular limiting shoulder 7 for embedding the upper shell 2;

[0025] Combined with the accompanying Figure 1 , 3 , the heat dissipation fin 4 is provided with a plurality of heat dissipation fins, which are distributed on the upper surface of the upper shell 2; the heat dissipation fin 4 gradually decreases from both ends to the middle; the heat dissipation fin 4 is used for assisting heat dissipation of the internal elements, and is arranged more densely in the middle part where the internal elements are more concentrated, and the heat dissipation effect is good, and gradually sparse towards both ends;

[0026] Combined with the accompanying Figure 1 , 2 , 3, the positioning structure; the limiting shoulder 7 is provided with a plurality of positioning blocks 5 which are uniformly distributed on the front and rear sides of the upper shell 2, and the limiting shoulder 7 is provided with a positioning groove 6 which can accommodate the positioning block 5; the shape, position and number of the positioning block 5 and the positioning groove 6 correspond; the outer side of the positioning block 5 is wrapped with a rubber layer;

[0027] The positioning block 5 and the positioning groove 6 can embed the upper shell 2 into the limiting shoulder 7, and can prevent displacement, realizing fixation in the horizontal direction; the rubber layer can increase the friction between the positioning block 5 and the positioning groove 6, making the installation more stable and firm;

[0028] Combined with the accompanying Figure 1 , 2 , 3, 4, the mounting structure; the limiting shoulder 7 is provided with a mounting circular groove 16 on both sides; the upper shell 2 is provided with a hollow cylinder 8 which can enter the mounting circular groove 16 on both sides; the hollow cylinder 8 is embedded in the mounting circular groove 16;

[0029] The upper shell 2 is provided with a threaded hole 9 which can communicate with the hollow cylinder 8 on both sides; the threaded hole 9 is threadedly connected with a screw rod 10, so that the screw rod 10 can directly extend into the hollow cylinder 8; the upper shell 2 is provided with an operation groove 13 corresponding to the threaded hole 9 on both sides, and the screw rod 10 is located in the operation groove 13; the operation groove 13 facilitates the operation of the screw rod 10, provides space for the screw rod 10, and can assist the rotation of the screw rod 10 by tweezers;

[0030] The hollow cylinder 8 is provided with a blocking tooth 11 moving inside; the hollow cylinder 8 is provided with a symmetrical arc-shaped plate 14, and the blocking tooth 11 is located outside the corresponding arc-shaped plate 14; a spring is arranged between the arc-shaped plate 14 and the inner side of the hollow cylinder 8; when the arc-shaped plates 14 move in opposite directions, the blocking tooth 11 will move in opposite directions;

[0031] The hollow cylinder 8 is provided with a blocking tooth 11 moving inside; the hollow cylinder 8 is provided with a symmetrical arc-shaped plate 14, and the blocking tooth 11 is located outside the corresponding arc-shaped plate 14; a spring is arranged between the arc-shaped plate 14 and the inner side of the hollow cylinder 8; when the arc-shaped plates 14 move in opposite directions, the blocking tooth 11 will move in opposite directions;

[0032] In the above structure, when the screw 10 rotates and enters the hollow cylinder 8, the two arc-shaped plates 14 will be squeezed to move, and the blocking tooth 11 on both sides of the arc-shaped plate 14 will be ejected from the circular hole 12 and inserted into the circular hole two 15, so that the hollow cylinder 8 is fixed in the assembly circular groove 16, that is, in the limiting shoulder 7, since the hollow cylinder 8 is fixed outside the upper shell 2, the upper shell 2 is fixed in the limiting shoulder 7, and the overall fixation is completed, when disassembly and detection are needed, the upper shell 2 can be removed by reversing the screw 10.

[0033] The above describes the utility model and its implementation, which is not limited, and the drawings shown are only one of the embodiments of the utility model, and the actual structure is not limited. In summary, if a person skilled in the art is inspired, without departing from the purpose of the utility model, without creative design, similar structure and embodiments of the technical scheme should belong to the protection scope of the utility model.

Claims

1. An integrated circuit package external structure comprising a chip and a pin (1); characterized by: Also include: The upper shell (2) and the lower shell (3); the chip is located in the space enclosed by the upper shell (2) and the lower shell (3), and is fixedly connected with the upper shell (2); the pin (1) is provided with a plurality of, evenly distributed in the front and rear sides of the lower shell (3); the lower shell (3) is provided with a rectangular limiting shoulder (7); The heat dissipation fin (4) is provided with a plurality of, distributed on the upper surface of the upper shell (2); Positioning structure; including a plurality of positioning blocks (5) evenly distributed on the front and rear sides of the upper shell (2), the limiting shoulder (7) is provided with a positioning groove (6) capable of accommodating the positioning block (5); The mounting structure; including the assembly circular groove (16) provided on both sides of the limiting shoulder (7), the hollow cylindrical body (8) capable of entering the assembly circular groove (16) is provided on both sides of the upper shell (2), the threaded hole (9) capable of communicating with the hollow cylindrical body (8) is provided on both sides of the upper shell (2); the threaded hole (9) is threadedly connected with the screw rod (10); the hollow cylindrical body (8) is movably provided with the blocking tooth (11), and both sides are provided with a circular hole (12) corresponding to the blocking tooth (11), the limiting shoulder (7) is provided with a circular hole two (15) corresponding to the circular hole (12); when the screw rod (10) extends into the hollow cylindrical body (8), the blocking tooth (11) can be ejected from the circular hole (12) to the circular hole two (15).

2. An integrated circuit package-on-package structure according to claim 1, wherein: The heat dissipation fin (4) gradually decreases from both ends to the middle.

3. The integrated circuit package-on-package structure of claim 1, wherein: The shape, position and number of the positioning block (5) and the positioning groove (6) correspond; the outer side of the positioning block (5) is wrapped with a rubber layer.

4. The integrated circuit package of claim 1, wherein: Both sides of the upper shell (2) are provided with an operation groove (13) corresponding to the threaded hole (9), and the screw rod (10) is located in the operation groove (13).

5. The integrated circuit package-out structure of claim 1, wherein: The hollow cylindrical body (8) is provided with a symmetrical arc-shaped plate (14), and the blocking tooth (11) is located on the outer side of the corresponding arc-shaped plate (14); the arc-shaped plate (14) and the inner side of the hollow cylindrical body (8) are both provided with a spring.

6. The integrated circuit package-on-package structure of claim 1, wherein: The circular hole two (15) is in communication with the corresponding assembly circular groove (16).

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