Combined lead frame structure

Abstract

The utility model provides a combined lead frame structure, which comprises a first lead frame, a second lead frame, an I-shaped batten and a miniature rubber abutting block, a first clamping plate is fixed at the right end of the first lead frame, a second clamping plate is fixed at the left end of the second lead frame, and the first clamping plate and the second clamping plate are mutually clamped. Two I-shaped grooves are formed in the clamping position of the first clamping plate and the second clamping plate in a penetrating mode, the two I-shaped strip plates are clamped in the two I-shaped grooves respectively, and rectangular grooves are formed in the left ends and the right ends of the two I-shaped strip plates respectively. The utility model aims to solve the problems that a conventional lead frame is relatively small in size, occupies a lot of circuit installation space and is relatively waste, has good practicability, designs an anti-drop mutual clamping structure, can realize rapid combined use between two lead frames, effectively reduces the circuit installation space occupied by the combined structure of the device, and is convenient to popularize and use.

Description

Technical Field

[0001] The utility model discloses a combined lead frame structure, belonging to the technical field of lead frames. Background Art

[0002] As the chip carrier of integrated circuits, the lead frame is a key structural component that uses bonding materials to achieve electrical connection between the internal circuit lead ends of the chip and the external leads to form an electrical circuit. It serves as a bridge to connect to external wires and is an important infrastructure in the electronic information industry.

[0003] Patent No.: CN208985977U, mentions a combined lead frame, by inserting the slider on the side of the second pin into the inside of the guide groove on the side of the first pin, so that the first pin and the second pin are connected, and the combination of the guide groove and the slider is used to realize partial fixing and limiting functions. During the sliding process of the slider, the connecting block drives the card block to be inserted into the inside of the card groove, so that the first lead frame body and the second lead frame body are fixed, effectively realizing the firm connection of the connection part to avoid looseness. During the sliding process of the slider, the connecting rod on the side of the first lead frame body and the connecting rod on the side of the second lead frame body respectively drive the corresponding rib plate to move, so that the rib plate and the side of the bump are attached, and then in the plastic sealing process, the rib plate and the bump are plastic sealed together, effectively increasing the strength of the connection part to avoid damage due to strength reasons, but the gap between the two lead frames in the device is large, and the integrated circuit is small as a whole due to size reasons, and then it will occupy a lot of circuit installation space, which is relatively wasteful. Now a combined lead frame structure is urgently needed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a combined lead frame structure to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. An anti-detachment and interlocking structure is designed to achieve rapid combination and use of two lead frames, and effectively reduce the circuit installation space occupied by the combined structure of the device, which is convenient for promotion and use.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a combined lead frame structure, including a first lead frame, a second lead frame, an I-shaped strip and a micro rubber block, a first clamping plate is fixed to the right end of the first lead frame, a second clamping plate is fixed to the left end of the second lead frame, the first clamping plate and the second clamping plate are engaged with each other, and two I-shaped grooves are penetrated through the engaging part of the first clamping plate and the second clamping plate, the I-shaped strips are provided with two, and the two I-shaped strips are respectively clamped in the two I-shaped grooves, and rectangular grooves are provided at the left and right ends of the two I-shaped strips, and lightweight plastic plates are fixed in the two rectangular grooves, and the side surfaces of the two lightweight plastic plates are penetrated with a plurality of limiting holes at equal distances from front to back, and micro reset springs are horizontally installed in the plurality of limiting holes, and a plurality of micro rubber blocks are provided.

[0006] Furthermore, a plurality of heat dissipation holes are formed through the upper ends of the first card plate and the second card plate at equal distances from front to back.

[0007] Furthermore, the front ends of the two I-shaped strips are both provided with thread grooves.

[0008] Furthermore, the plurality of micro rubber blocks are respectively located in the plurality of limiting holes and are respectively connected to the movable ends of the plurality of micro reset springs.

[0009] Furthermore, the other ends of the plurality of micro rubber abutting blocks abut against the first clamping plate and the second clamping plate respectively.

[0010] Furthermore, the two I-shaped strips are made of the same high-strength metal material.

[0011] The beneficial effects of the utility model: the utility model has a combined lead frame structure. Since the utility model adds a first clamping plate, a second clamping plate, an I-shaped strip plate, a lightweight plastic plate, a micro reset spring and a micro rubber block, our design improvement and actual use have shown that the device has good practicality. A anti-detachment mutual clamping structure is designed to achieve rapid combination and use between the two lead frames, and effectively reduce the circuit installation space occupied by the combined structure of the device, which is convenient for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a combined lead frame structure of the utility model;

[0014] Figure 2 for Figure 1 A partial cross-sectional schematic diagram of ;

[0015] Figure 3 This is a schematic diagram of the position of a lightweight plastic plate of a combined lead frame structure of the utility model;

[0016] Figure 4 for Figure 3 Schematic diagram of the local structure;

[0017] In the figure: 1-first lead frame, 2-second lead frame, 3-first card board, 4-second card board, 5-heat dissipation hole, 6-I-shaped groove, 7-I-shaped strip board, 8-lightweight plastic board, 9-limiting hole, 10-micro reset spring, 11-micro rubber block. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 4 The utility model provides a technical solution: a combined lead frame structure, including a first lead frame 1, a second lead frame 2, an I-shaped strip 7 and a micro rubber block 11, a first card plate 3 is fixed to the right end of the first lead frame 1, a second card plate 4 is fixed to the left end of the second lead frame 2, the first card plate 3 and the second card plate 4 are engaged with each other, two I-shaped grooves 6 are penetrated and opened at the engaging position of the first card plate 3 and the second card plate 4, two I-shaped strips 7 are provided, the two I-shaped strips 7 are respectively clamped in the two I-shaped grooves 6, the left and right ends of the two I-shaped strips 7 are provided with rectangular grooves, and lightweight plastic plates 8 are fixed in the two rectangular grooves, and the side surfaces of the two lightweight plastic plates 8 are penetrated and opened with multiple limiting holes 9 at equal distances from front to back, and micro reset springs 10 are horizontally installed in the multiple limiting holes 9, and multiple micro rubber blocks 11 are provided. This design solves the problem that the gap between the two lead frames in the original device is large, and the integrated circuit is small as a whole due to size reasons, and then it will occupy a lot of circuit installation space, which is relatively wasteful.

[0020] As the first embodiment of the utility model: a plurality of heat dissipation holes 5 are formed at equal distances from the front to the back of the upper ends of the first card plate 3 and the second card plate 4, and the heat dissipation capacity of the first card plate 3 and the second card plate 4 can be improved by the plurality of heat dissipation holes 5. The front ends of the two I-shaped strips 7 are provided with thread grooves, and the thread grooves are convenient for the staff to pull the I-shaped strips 7 with external thin bolts.

[0021] The multiple micro rubber abutments 11 are respectively located in the multiple limiting holes 9, and are respectively connected to the active ends of the multiple micro reset springs 10. The multiple micro reset springs 10 added can abut the multiple micro rubber abutments 11. The other ends of the multiple micro rubber abutments 11 abut against the first card plate 3 and the second card plate 4 respectively. The multiple micro rubber abutments 11 added can abut against the first card plate 3 and the second card plate 4 respectively, thereby preventing the two I-shaped strips 7 from easily falling off in the two I-shaped grooves 6. Both I-shaped strips 7 are made of the same high-strength metal material.

[0022] As a second embodiment of the utility model: when it is necessary to quickly combine the first lead frame 1 and the second lead frame 2, firstly engage the first clamping plate 3 and the second clamping plate 4 with each other, then use external thin bolts to insert into the two threaded grooves, and then align the two I-shaped strips 7 with the two I-shaped grooves 6 and slowly push them until the two I-shaped strips 7 are completely pushed into the two I-shaped grooves 6. During this process, multiple micro-reset springs 10 can resist multiple micro-rubber blocks 11, so that the other ends of the multiple micro-rubber blocks 11 are respectively against the first clamping plate 3 and the second clamping plate 4, which can prevent the two I-shaped strips 7 from easily falling off in the two I-shaped grooves 6.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A combined lead frame structure, comprising a first lead frame (1), a second lead frame (2), an I-shaped strip (7) and a micro rubber stopper (11), characterized in that: A first clamping plate (3) is fixed to the right end of the first lead frame (1), and a second clamping plate (4) is fixed to the left end of the second lead frame (2), and the first clamping plate (3) and the second clamping plate (4) are engaged with each other; Two I-shaped grooves (6) are provided through the engaging portion between the first clamping plate (3) and the second clamping plate (4), two I-shaped strips (7) are provided, and the two I-shaped strips (7) are respectively clamped in the two I-shaped grooves (6); The left and right ends of the two I-shaped strips (7) are provided with rectangular grooves, and a lightweight plastic plate (8) is fixed in each of the two rectangular grooves. The side surfaces of the two lightweight plastic plates (8) are provided with a plurality of limit holes (9) equidistantly extending from the front to the back, and a miniature return spring (10) is horizontally installed in each of the plurality of limit holes (9). A plurality of the miniature rubber stop blocks (11) are provided.

2. The combined lead frame structure according to claim 1, characterized in that: A plurality of heat dissipation holes (5) are provided at even intervals from front to back through the upper ends of the first card plate (3) and the second card plate (4).

3. The combined lead frame structure according to claim 1, characterized in that: The front ends of the two I-shaped strips (7) are both provided with thread grooves.

4. The combined lead frame structure according to claim 1, characterized in that: The plurality of micro rubber stoppers (11) are respectively located in the plurality of limiting holes (9) and are respectively connected to the movable ends of the plurality of micro reset springs (10).

5. The combined lead frame structure according to claim 1, characterized in that: The other ends of the plurality of micro rubber abutment blocks (11) abut against the first clamping plate (3) and the second clamping plate (4) respectively.

6. The combined lead frame structure according to claim 1, characterized in that: The two I-shaped strips (7) are both made of the same high-strength metal material.

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