CN211629042U

CN211629042U - Lead frame

Info

Publication number: CN211629042U
Application number: CN201922431391.3U
Authority: CN
Inventors: 陈虎; 张伟; 殷旭
Original assignee: Taixing City Longteng Electronics Co ltd
Current assignee: Taixing City Longteng Electronics Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-02
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a lead frame, include: a card mounting structure and a main board structure; the main board structure is detachably arranged on the clamping structure, the first spring is stretched by pulling the support rod, the frame main board is clamped between the mounting block and the clamping seat according to the height of the frame main board, the clamping blocks at one ends of the two stress rods are separated by pushing the sliding block, and the frame main board is vertically clamped between the clamping blocks by the action of the second spring to be fixed; further, electrical elements or chips can be mounted on the frame main board in the main body structure through the circular through holes on the frame main board; after the frame main board is integrally installed, the through-connection through holes on the board can be installed and fixed through the rotation of the four corners, and the through-connection through the limiting rods are movably connected with the frame main board, so that the shock absorption and buffering can be performed through the third spring when the frame main board is impacted, and the damage caused by overlarge stress is prevented; the design structure is simple, the cost is low, the integrated lead frame is convenient for workers to weld, and the stress damage of the integrated lead frame can be prevented.

Description

Lead frame

Technical Field

The utility model relates to an electronic equipment technical field specifically is a lead frame.

Background

The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electrical connection between a leading-out end of an internal circuit of a chip and an external lead by means of bonding materials (gold wires, aluminum wires and copper wires) to form an electrical circuit, plays a role of a bridge connected with an external lead, needs to use the lead frame in most semiconductor integrated blocks and is an important basic material in the electronic information industry;

however, when an electric device, a chip and the like are installed on the lead frame, the lead frame is relatively thin, the chip and the like are relatively small, so that the installation is relatively inconvenient, particularly the horizontal placement is extremely difficult to install, and the chip lead is required to be inserted into the through hole of the frame, and then the back surface of the lead is welded and fixed to be connected with a frame circuit; and after the frame is integrated, the frame is easy to damage by impact force during installation and use, so a lead frame is designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lead frame to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme lead frame, include: a card mounting structure and a main board structure; the main board structure is detachably arranged on the card installing structure;

the dress card structure includes: the device comprises a base, a pair of supporting rods with the same structure, a pair of first springs with the same structure, a pair of mounting blocks with the same structure, two pairs of sliding blocks with the same structure, two pairs of stress rods with the same structure, two pairs of clamping blocks with the same structure and two pairs of second springs with the same structure;

the base is of a rectangular box structure, one end of each of a pair of supporting rods is movably inserted into the upper wall of the base respectively and is symmetrically positioned at the diagonal positions, the first springs are movably sleeved on one end of each supporting rod respectively and are positioned between one end of each supporting rod and the inner upper wall of the base, the mounting blocks are of a hollow structure, the mounting blocks are fixedly welded on the side wall of the other end of each supporting rod respectively and are mutually symmetrical, the upper side wall and the lower side wall of each mounting block are provided with chutes with the same structure, the two pairs of sliding blocks are movably embedded in the chutes of the upper walls of the mounting blocks respectively and are symmetrically positioned on the two sides of the central line, one end of each stress rod is movably embedded in the chutes of the lower walls of the mounting blocks respectively and is fixedly welded on the lower walls of the sliding blocks respectively and is mutually symmetrical, and the clamping blocks are fixedly welded, one end of each of the two pairs of second springs is fixedly arranged on the left side wall and the right side wall of the mounting block respectively, and the other end of each of the two pairs of second springs is fixedly connected to the side wall of the sliding block respectively and is in symmetrical parallel with the side wall of the sliding block.

Preferably, the main board structure includes: the frame comprises a frame main board, two pairs of limiting rods with the same structure, two pairs of adapter plates with the same structure and two pairs of third springs with the same structure;

the frame mainboard is the rectangle structure, and its upper wall equidistance sets up a plurality of circular switching through-holes that the structure is the same to its switching through-hole center part impartial distance sets up a plurality of first thermovents that the structure is the same, two pairs of gag lever post one end activity cartridge respectively in frame mainboard four corners position department, two pairs of keysets one end fixed weld respectively on the gag lever post other end, and its other end has all seted up fixed through-hole, and lie in frame mainboard both ends symmetry parallel to each other respectively, two pairs the third spring activity suit respectively is on the gag lever post other end, and lies in between keysets and frame mainboard lateral wall respectively.

Preferably, the limiting rod is of a rectangular structure.

Preferably, a plurality of second heat dissipation ports with the same structure are arranged at the center of the frame main board at equal intervals.

Preferably, the upper wall of the base is provided with a pair of concave clamping seats with the same structure, the concave clamping seats are respectively positioned on the central line, and the inner walls of the concave clamping seats are provided with rubber pads matched with each other.

Preferably, the fixture block is of a hemispherical rubber structure.

Preferably, the mounting block is of a concave structure.

Compared with the prior art, the beneficial effects of the utility model are that: according to the lead frame, the first spring is stretched by pulling the support rod in the clamping structure, so that the frame main board can be clamped between the mounting block and the clamping seat according to the height of the frame main board, the clamping blocks at one ends of the two stress rods are separated by pushing the sliding block, and the frame main board is vertically clamped between the clamping blocks for fixing by means of the acting force of the second spring; further, electrical elements or chips can be mounted on the frame main board in the main body structure through the circular through holes on the frame main board; after the frame main board is integrally installed, the frame main board can be installed and fixed through the switching through holes in the switching boards at the four corners and is movably connected with the frame main board through the limiting rods, and when the frame main board is impacted, the frame main board can be damped and buffered through the third springs, so that the frame main board is prevented from being damaged due to overlarge stress; the design structure is simple, the cost is low, the integrated lead frame is convenient for workers to weld, and the stress damage of the integrated lead frame can be prevented.

Drawings

Fig. 1 is a schematic view of the overall assembly structure of the present invention;

FIG. 2 is a schematic view of the assembling structure of the mounting and clamping structure of the present invention;

FIG. 3 is a schematic view of the main structure assembly structure of the present invention;

fig. 4 is a schematic view of a front sectional structure of the card loading structure of the present invention.

In the figure: 1. the clamping structure comprises a clamping structure 11, a base 12, a supporting rod 13, a first spring 14, a mounting block 15, a sliding block 16, a stress rod 17, a clamping block 18, a second spring 2, a main body structure 21, a frame main board 22, a limiting rod 23, an adapter plate 24 and a third spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a lead frame, comprising: the card installing structure 1 and the mainboard structure; the main board structure is detachably arranged on the card installing structure 1; dress card structure 1 includes: the device comprises a base 11, a pair of supporting rods 12 with the same structure, a pair of first springs 13 with the same structure, a pair of mounting blocks 14 with the same structure, two pairs of sliding blocks 15 with the same structure, two pairs of stress rods 16 with the same structure, two pairs of clamping blocks 17 with the same structure and two pairs of second springs 18 with the same structure; the base 11 is a rectangular box structure, one end of a pair of supporting rods 12 is respectively movably inserted in the upper wall of the base 11 and is respectively positioned at the diagonal positions and is symmetrical to each other, a pair of first springs 13 is respectively movably sleeved on one end of the supporting rods 12 and is positioned between one end and the inner upper wall of the base 11, a pair of mounting blocks 14 are both of a hollow structure, a pair of mounting blocks 14 are respectively fixedly welded on the side wall of the other end of the supporting rods 12 and are symmetrical to each other, the upper side wall and the lower side wall of each mounting block are both provided with chutes with the same structure, two pairs of sliding blocks 15 are respectively movably embedded in the chutes on the upper wall of the mounting blocks 14 and are symmetrical to each other on the two sides of a central line, one end of two pairs of stress rods 16 is respectively movably embedded in the chutes on the lower wall of the mounting blocks 14 and is respectively fixedly welded on the lower, one end of each of the two pairs of second springs 18 is fixedly arranged on the left side wall and the right side wall in the mounting block 14, and the other end of each of the two pairs of second springs is fixedly connected to the side wall of the sliding block 15 and is symmetrical and parallel to each other; through dress card structure 1, can make things convenient for the electrical part installation fixed.

Preferably, the main board structure further includes: the frame comprises a frame main board 21, two pairs of limiting rods 22 with the same structure, two pairs of adapter boards 23 with the same structure and two pairs of third springs 24 with the same structure;

the frame main board 21 is of a rectangular structure, a plurality of circular through holes with the same structure are formed in the upper wall of the frame main board at equal intervals, a plurality of first heat dissipation ports with the same structure are formed in the center of each through hole at equal intervals, one ends of two pairs of limiting rods 22 are movably inserted into four corners of the frame main board 21 respectively, one ends of two pairs of adapter plates 23 are fixedly welded to the other ends of the limiting rods 22 respectively, fixing through holes are formed in the other ends of the two pairs of adapter plates, the two pairs of adapter plates are located at two ends of the frame main board 21 and are symmetrically parallel to each other, and two pairs of third springs 24 are movably sleeved on the other ends of the limiting rods 22 respectively and are located between.

Preferably, the limiting rod 22 is rectangular, so that the limiting rod can limit the position conveniently and can move up and down.

As an optimized scheme, further, a plurality of second heat dissipation ports with the same structure are equidistantly formed in the central position of the frame main board 21, so that heat dissipation of the electric device is facilitated.

As an optimized scheme, further, a pair of concave card seats 3 with the same structure are installed on the upper wall of the base 11 and are respectively located on the central line, and rubber pads matched with each other are arranged on the inner walls of the concave card seats, so that the concave card seats are convenient to bear and limit, and are prevented from being damaged.

Preferably, the latch 17 is a hemispherical rubber structure, which facilitates clamping and fixing and prevents the frame main board 21 from being damaged by scratching.

Preferably, the mounting block 14 is a concave structure, so as to facilitate mounting and limiting.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Example (b): as can be seen from fig. 1-4 of the specification, first, the first spring 13 is stretched by pulling the supporting rod 12 on the base 11 in the card installing structure 1, so that the frame main board 21 can be clamped between the mounting block 14 and the card seat 3 according to the height of the frame main board 21, the clamping blocks 17 at one end of the two stressed rods 16 are separated by pushing the sliding blocks 15 on the upper wall of the mounting block 14, and the frame main board 21 is vertically clamped between the clamping blocks 17 by the acting force of the second spring 18 for fixing; further, the main frame 21 in the main body structure 2 can be provided with electrical components or chips through the circular through holes; after the frame mainboard 21 is integrated to be installed, the switching through-hole on the keysets 23 of accessible four corners position is installed fixedly to through gag lever post 22 and frame mainboard 21 swing joint, accessible third spring 24 carries out the shock attenuation buffering when receiving the impact force, prevents the too big damage of atress.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; meanwhile, unless explicitly stated or limited otherwise, the terms "fixedly welded", "movably inserted", "movably sleeved", "tea bag", "opened", and the like, should be understood in a broad sense, and for example, may be fixedly connected, may also be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lead frame, comprising: a card installing structure (1) and a main board structure; the main board structure is detachably arranged on the card installing structure (1);

the card installing structure (1) comprises: the device comprises a base (11), a pair of supporting rods (12) with the same structure, a pair of first springs (13) with the same structure, a pair of mounting blocks (14) with the same structure, two pairs of sliding blocks (15) with the same structure, two pairs of stress rods (16) with the same structure, two pairs of clamping blocks (17) with the same structure and two pairs of second springs (18) with the same structure;

the base (11) is of a rectangular box structure, one end of each of a pair of supporting rods (12) is movably inserted into the upper wall of the base (11) and is positioned at the diagonal positions and is symmetrical to each other, one end of each of a pair of first springs (13) is movably sleeved on one end of each of the supporting rods (12) and is positioned between one end of each of the supporting rods and the inner upper wall of the base (11), each of a pair of mounting blocks (14) is of a hollow structure, each of a pair of mounting blocks (14) is fixedly welded on the side wall of the other end of each of the supporting rods (12) and is symmetrical to each other, sliding grooves with the same structure are formed in the upper side wall and the lower side wall of each of the mounting blocks (14), two pairs of sliding blocks (15) are movably embedded into the sliding grooves in the upper wall of each of the mounting blocks (14) and are positioned at the two sides of a central line and are symmetrical to each, the two pairs of clamping blocks (17) are respectively fixedly welded on the side wall of the other end of the stress rod (16) and are mutually attached and symmetrical, one end of each of the two pairs of second springs (18) is respectively and fixedly arranged on the left side wall and the right side wall in the mounting block (14), and the other ends of the two pairs of second springs are respectively and fixedly connected on the side wall of the sliding block (15) and are mutually symmetrical and parallel.

2. A lead frame according to claim 1, characterized in that: the main board structure includes: the device comprises a frame main board (21), two pairs of limiting rods (22) with the same structure, two pairs of adapter plates (23) with the same structure and two pairs of third springs (24) with the same structure;

the frame mainboard (21) is of a rectangular structure, a plurality of circular switching through holes with the same structure are arranged on the upper wall of the frame mainboard (21) at equal intervals, a plurality of first heat dissipation ports with the same structure are arranged on the center positions of the switching through holes at equal intervals, one ends of the two pairs of limiting rods (22) are movably inserted into the four corners of the frame mainboard (21) respectively, one ends of the two pairs of switching plates (23) are fixedly welded on the other ends of the limiting rods (22) respectively, fixing through holes are formed in the other ends of the switching plates and are located at two ends of the frame mainboard (21) and are symmetrically parallel to each other respectively, and the three springs (24) are movably sleeved on the other ends of the limiting rods (22) respectively and are located between the switching plates (23) and the side walls of the frame.

3. A lead frame according to claim 2, characterized in that: the limiting rod (22) is of a rectangular structure.

4. A lead frame according to claim 2, characterized in that: a plurality of second heat dissipation ports with the same structure are formed in the center of the frame main board (21) at equal intervals.

5. A lead frame according to claim 1, characterized in that: the upper wall of the base (11) is provided with a pair of concave clamping seats (3) with the same structure, the concave clamping seats are respectively positioned on the central line, and the inner walls of the concave clamping seats are provided with rubber pads which are matched with each other.

6. A lead frame according to claim 1, characterized in that: the fixture block (17) is of a hemispherical rubber structure.

7. A lead frame according to claim 1, characterized in that: the mounting block (14) is of a concave structure.