Expansion alloy lead support with 24 wire numbers

Abstract

The utility model relates to the technical field of lead supports, in particular to a 24-wire-number expansion alloy lead support which comprises a frame body, a mounting groove is formed in the surface of the frame body, lead pins are arranged on the two sides of the frame body, an L-shaped fixing frame is connected to the surfaces of the bottoms of the lead pins, an X-shaped supporting frame is arranged in the L-shaped fixing frame, and the X-shaped supporting frame is connected with the lead pins. Side rods are connected to the two sides of the inner surface of the L-shaped fixing frame. According to the utility model, the L-shaped bevel angle of the terminal pin is supported by the L-shaped fixing frame, the interior of the L-shaped fixing frame is reinforced by the X-shaped supporting frame, the two sides of the L-shaped fixing frame are supported in an auxiliary manner by the side rods, and the two sides of the bottom end of the L-shaped fixing frame are fixed by the base fixing plate, so that the supporting of the L-shaped fixing frame to the terminal pin is more stable, the structure is simple, and the operation is convenient. The stability is high, and the problem that the yield is reduced due to breakage of the terminal pins caused by deformation of the terminal pins can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lead wire brackets, in particular to an expansion alloy lead wire bracket with 24 wires. Background Art

[0002] As the chip carrier of the integrated circuit, the IC lead frame plays an extremely important role in the integrated circuit. As a key structural component for forming an electrical circuit, it serves as a bridge connecting to external wires. Lead frames are required in most semiconductor integrated blocks. They are an important basic material in the electronic information industry and are widely used in communications, wearable devices and new energy vehicles.

[0003] The main function of the lead frame is to help engineers arrange and connect various components on the circuit board accurately and effectively. The lead frame allows engineers to use simpler, safer and more reliable methods to connect circuit elements and main circuits, which can greatly improve production efficiency when making circuit boards and also have a certain improvement effect on circuit performance. When using the existing 24-line expansion alloy lead frame, the pins and the frame body are an integrated structure. In order to adapt to high-power IC chips, the thickness of the frame body will be increased, but the pins are soft structures and are prone to breakage, so the pins need to be replaced as a whole, affecting the yield rate and increasing costs. Utility Model Content

[0004] The purpose of the utility model is to provide a 24-wire expanded alloy lead frame to solve the problem proposed in the above background technology that in order to adapt to high-power IC chips, the thickness of the frame body will be increased, but the pins are soft structures and are prone to breakage, so the pins need to be replaced as a whole, which affects the yield rate and increases the cost.

[0005] To achieve the above purpose, the utility model provides the following technical solution, a 24-wire expansion alloy lead frame, including a frame body:

[0006] The surface of the frame body is provided with a mounting groove, lead pins are provided on both sides of the frame body, the bottom surface of the lead pin is connected to an L-shaped fixing frame, an X-shaped supporting frame is provided inside the L-shaped fixing frame, side rods are connected to both sides of the inner surface of the L-shaped fixing frame, and base fixing plates are connected to both sides of the bottom end surface of the L-shaped fixing frame.

[0007] Preferably, the L-shaped fixing frame is arranged at the L-shaped angle of the bottom of the lead pin for support, and the X-shaped supporting frame reinforces the inside of the L-shaped fixing frame through its own shape.

[0008] Preferably, the L-shaped fixing frame and the X-shaped supporting frame are arranged to be fixedly connected, and the base fixing plate is connected to a surface of one side of the lead pin.

[0009] Preferably, the top end of the side rod is connected to one side of the bottom surface of the lead pin, and the bottom end of the side rod is connected to one side of the inner surface of the L-shaped fixing frame.

[0010] Preferably, the outer walls of the four corners of the frame body are sleeved with corner protection sleeves, rubber pads are connected to both sides of the inner surface of the corner protection sleeves, one side of the corner protection sleeves is connected to a limiting plate, and the surface of the limiting plate is provided with welding through holes.

[0011] Preferably, grooves are provided on both sides of the inner surface of the corner protector, and one side of the rubber pad is connected to one side of the inner wall of the groove provided in the corner protector.

[0012] Preferably, the rubber pad is filled between the frame body and the corner protector for buffering, and the limiting plate abuts against one side of the surface of the frame body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The L-shaped bevel of the lead pin is supported by an L-shaped fixing frame, the inside of the L-shaped fixing frame is reinforced by an X-shaped supporting frame, and the two sides of the L-shaped fixing frame are auxiliary supported by side rods, and the base fixing plate fixes the two sides of the bottom of the L-shaped fixing frame, so that the L-shaped fixing frame can support the lead pin more stably, with a simple structure and high stability, which can avoid deformation of the lead pin, resulting in breakage of the lead pin and reduced yield rate.

[0015] 2. By putting the corner protectors on the outer walls of the four corners of the frame body, and using rubber pads to fill the space between the frame body and the corner protectors for buffering, the two are in flexible contact, and the limiting plate is made to abut against the surface of the frame body. When connecting the corner protectors and the frame body, welding positioning is performed through the welding through holes provided on the surface of the limiting plate, so that the corner protectors are used to protect the corners of the frame body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A is an enlarged schematic diagram of the structure at center A;

[0018] Figure 3 It is a schematic diagram of a partial cross-sectional side view of the structure of the utility model;

[0019] Figure 4 It is a partially cutaway perspective schematic diagram of the structure of the utility model from a side view;

[0020] Figure 5 It is a schematic diagram of a partial cross-sectional plan view of the structure of the utility model when viewed from above.

[0021] In the figure: 1. frame body; 2. mounting slot; 3. lead pin; 4. L-shaped fixing frame; 5. X-shaped supporting frame; 6. side rod; 7. base fixing plate; 8. corner protector; 9. rubber pad; 10. limit plate; 11. welding through hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , an embodiment provided by the utility model:

[0024] A 24-wire expansion alloy lead frame, comprising a frame body 1:

[0025] A mounting groove 2 is provided on the surface of the frame body 1, lead pins 3 are provided on both sides of the frame body 1, an L-shaped fixing frame 4 is connected to the bottom surface of the lead pin 3, an X-shaped supporting frame 5 is provided inside the L-shaped fixing frame 4, side rods 6 are connected to both sides of the inner surface of the L-shaped fixing frame 4, and base fixing plates 7 are connected to both sides of the bottom end surface of the L-shaped fixing frame 4. The internal material of the frame body 1 is existing technology and can be purchased on the market. It is not a technical protection point of this application, and therefore, no further statements are made.

[0026] Furthermore, the L-shaped fixing frame 4 is arranged at the L-shaped angle at the bottom of the lead pin 3 for support, and the X-shaped support frame 5 reinforces the inside of the L-shaped fixing frame 4 through its own shape, thereby achieving the filling and reinforcement support function of the inside of the L-shaped fixing frame 4 through the X-shaped support frame 5.

[0027] Furthermore, the L-shaped fixing frame 4 and the X-shaped supporting frame 5 are arranged to be fixedly connected, and the base fixing plate 7 is connected to one side surface of the lead pin 3 , so that the base fixing plate 7 supports the bottom end of the L-shaped fixing frame 4 .

[0028] Furthermore, the top end of the side rod 6 is connected to one side of the bottom surface of the lead pin 3, and the bottom end of the side rod 6 is connected to one side of the inner surface of the L-shaped fixing frame 4, so that the side rod 6 can provide auxiliary support between the frame body 1 and the lead pin 3.

[0029] Furthermore, the outer walls of the four corners of the frame body 1 are sleeved with corner protection sleeves 8, rubber pads 9 are connected to the inner surfaces of the corner protection sleeves 8 on both sides, a limiting plate 10 is connected to one side of the corner protection sleeve 8, and a welding through hole 11 is provided on the surface of the limiting plate 10, so as to realize the protection of the corners of the frame body 1 by using the corner protection sleeves 8.

[0030] Furthermore, grooves are provided on both sides of the inner surface of the corner protector 8, and one side of the rubber pad 9 is connected to one side of the inner wall of the groove provided in the corner protector 8, so that the rubber pad 9 is limited by the groove provided in the corner protector 8.

[0031] Furthermore, the rubber pad 9 is filled between the frame body 1 and the corner protector 8 for buffering, and the limiting plate 10 is abutted against one side of the surface of the frame body 1, so that the limiting plate 10 assists the corner protector 8 in positioning the frame body 1.

[0032] Working principle: When reinforcing the 24-wire expansion alloy lead frame, the L-shaped bevel of the lead pin 3 is supported by the L-shaped fixing frame 4, the X-shaped supporting frame 5 is used to reinforce the inside of the L-shaped fixing frame 4, and the side rods 6 are used to provide auxiliary support on both sides of the L-shaped fixing frame 4, while the base fixing plate 7 fixes the two sides of the bottom end of the L-shaped fixing frame 4, so that the L-shaped fixing frame 4 supports the lead pin 3 more stably, has a simple structure, and high stability, which can avoid deformation of the lead pin 3, resulting in breakage of the lead pin 3 and reduced yield rate.

[0033] When protecting a 24-wire expansion alloy lead bracket, the corner protectors 8 are sleeved on the outer walls of the four corners of the frame body 1, and rubber pads 9 are filled between the frame body 1 and the corner protectors 8 for buffering, so that the two are in flexible contact, and the limiting plate 10 is abutted against the surface of the frame body 1. When connecting the corner protectors 8 and the frame body 1, welding positioning is performed through the welding through holes 11 set on the surface of the limiting plate 10, so that the corners of the frame body 1 are protected by the corner protectors 8.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A 24-wire expanded alloy lead frame, comprising a frame body (1), characterized in that: The frame body (1) is provided with a mounting groove (2) on its surface, lead pins (3) are provided on both sides of the frame body (1), the bottom surface of the lead pin (3) is connected to an L-shaped fixing frame (4), an X-shaped supporting frame (5) is provided inside the L-shaped fixing frame (4), side rods (6) are connected to both sides of the inner surface of the L-shaped fixing frame (4), and base fixing plates (7) are connected to both sides of the bottom end surface of the L-shaped fixing frame (4).

2. The 24-wire expanded alloy lead frame according to claim 1, characterized in that: The L-shaped fixing frame (4) is arranged at the L-shaped oblique angle of the bottom of the lead pin (3) for support, and the X-shaped supporting frame (5) reinforces the inside of the L-shaped fixing frame (4) through its own shape.

3. The 24-wire expanded alloy lead frame according to claim 1, characterized in that: The L-shaped fixing frame (4) and the X-shaped supporting frame (5) are arranged to be fixedly connected, and the base fixing plate (7) is connected to a surface of one side of the lead pin (3).

4. The 24-wire expanded alloy lead frame according to claim 1, characterized in that: The top end of the side rod (6) is connected to one side of the bottom surface of the lead pin (3), and the bottom end of the side rod (6) is connected to one side of the inner surface of the L-shaped fixing frame (4).

5. The 24-wire expanded alloy lead frame according to claim 1, characterized in that: The outer walls of the four corners of the frame body (1) are sleeved with corner protection sleeves (8), the inner surfaces of the corner protection sleeves (8) are connected to rubber pads (9) on both sides, one side of the corner protection sleeve (8) is connected to a limiting plate (10), and the surface of the limiting plate (10) is provided with welding through holes (11).

6. The 24-wire expanded alloy lead frame according to claim 5, characterized in that: Grooves are provided on both sides of the inner surface of the corner protection sleeve (8), and one side of the rubber pad (9) is connected to one side of the inner wall of the groove provided in the corner protection sleeve (8).

7. The 24-wire expanded alloy lead frame according to claim 5, characterized in that: The rubber pad (9) is filled between the frame body (1) and the corner protection sleeve (8) for buffering, and the limiting plate (10) is in contact with one side of the surface of the frame body (1).

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