CN219658702U - Buffering foot protector for intelligent power module lead frame - Google Patents

Abstract

The utility model relates to the technical field of lead frames, in particular to a buffering foot protector for an intelligent power module lead frame. According to the utility model, the screw rod rotates to enable the pressing plate which is rotationally connected with the screw rod to move downwards along with the screw rod, so that the pressing plate is pressed down on the protection seat, and the end corners of the lead frame of the intelligent power module which is arranged on the end wall of the protection seat are pressed and clamped, thereby achieving the purpose of connecting the lead frame with the protection feet.

Description

Buffering foot protector for intelligent power module lead frame

Technical Field

The utility model relates to the technical field of lead frames, in particular to a buffering foot protector for an intelligent power module lead frame.

Background

The smart power module is an advanced power switching device having advantages of high current density, low saturation voltage and high voltage resistance of GTR (high power transistor), and advantages of high input impedance, high switching frequency and low driving power of MOSFET (field effect transistor), and a lead frame is used in the smart power module.

When lead frame uses, can install lead frame, during the installation, generally can be with lead frame direct assembly to electric appliance housing in, with casing end wall direct contact, because lead frame is thinner, when the casing takes place vibration, impact, lead frame with casing direct contact is impacted, impact can cause copper foil, electronic component fracture on the lead frame, and then cause the circuit breaking, influence the security when lead frame uses, for this, set up the buffering foot protector for the protection lead frame.

Disclosure of Invention

The utility model aims to provide a buffering pin protector for an intelligent power module lead frame.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an intelligent power module is buffering foot protector for lead frame, includes the protection seat, the seat upper end wall of protection seat has been seted up and has been put up the mouth, the seat lower mouth has been seted up at the middle part of protection seat, sealed lid is installed to the inboard of seat upper mouth, seat lower mouth, the seat upper mesh has been seted up to the side end wall of protection seat, the seat lower mesh has been seted up to the middle part end wall of protection seat, hold-down mechanism has been settled at the end angle top of protection seat, threaded hole has been seted up to the end wall of protection seat, the fixed column has been settled to the bottom wall of protection seat.

Preferably, the compressing mechanism comprises a compressing plate, a screw rod and a rubber pad, the screw rod penetrates through the end wall of the compressing plate, and the rubber pad is arranged on the bottom end wall of the compressing plate.

Preferably, the compacting plates are in threaded connection with the screw rods through threaded holes, and the compacting plates and the screw rods are both provided with two compacting plates and screw rods.

Preferably, the compacting plate is in threaded connection with the protection seat through a screw rod, and the compacting plate is in adhesive connection with the rubber pad.

Preferably, the protecting seat is in threaded connection with the sealing cover through the upper seat opening and the lower seat opening, and the sealing covers are provided with two sealing covers.

Preferably, the seat upper opening and the seat lower opening are respectively communicated with the seat upper mesh and the seat lower mesh, and the protection seat and the fixing column are fixedly connected.

The utility model has at least the following beneficial effects:

1. the lead screw rotates to enable the pressing plate connected with the lead screw in a rotating way, and the pressing plate is downwards pressed on the protection seat along with the lead screw, so that the lead frame end corners of the intelligent power module arranged on the end wall of the protection seat are pressed and clamped, and the purpose of connecting the lead frame with the protection feet is achieved;

2. can add dry powder respectively through seat upper mouth, seat lower mouth, like activated carbon granules, through sealed lid, shutoff and sealed seat upper mouth, seat lower mouth, the mesh is ventilative on the seat, under the seat for to the dry protection of lead frame end wall, the fixed column department of protective seat bottom is simultaneously used for cross-under screw spare, assembles the protective seat to the electrical apparatus casing on, the rubber pad is the rubber material, is used for buffering protection lead frame, through protective seat protection lead frame, prevents electrical apparatus casing when the impact, vibration damage lead frame.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of the present utility model;

FIG. 2 is a perspective view of the holder and seal cover of FIG. 1;

FIG. 3 is a schematic perspective view of the pinch plate of FIG. 1;

fig. 4 is a schematic bottom perspective view of the holder of fig. 1.

In the figure: 1. a protective seat; 2. a seat upper opening; 3. a seat lower opening; 4. sealing cover; 5. the seat is provided with mesh openings; 6. a mesh under the seat; 7. a compressing mechanism; 8. a compacting plate; 9. a screw rod; 10. a rubber pad; 11. a threaded hole; 12. and fixing the column.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution of buffering leg protection for an intelligent power module lead frame:

embodiment one:

as shown in fig. 1-4, a buffering foot protector for an intelligent power module lead frame comprises a protection seat 1, wherein an upper seat opening 2 is formed in the upper end wall of the protection seat 1, a lower seat opening 3 is formed in the middle of the protection seat 1, a sealing cover 4 is arranged on the inner sides of the upper seat opening 2 and the lower seat opening 3, upper seat meshes 5 are formed in the side end walls of the protection seat 1, lower seat meshes 6 are formed in the middle end walls of the protection seat 1, a pressing mechanism 7 is arranged at the top of an end angle of the protection seat 1, a threaded hole 11 is formed in the end wall of the protection seat 1, and a fixing column 12 is arranged at the bottom end wall of the protection seat 1.

Embodiment two:

on the basis of the first embodiment, as shown in fig. 1 and 2, the pressing mechanism 7 comprises a pressing plate 8, a screw rod 9 and a rubber pad 10, the screw rod 9 is penetrated through the end wall of the pressing plate 8, the rubber pad 10 is arranged on the bottom end wall of the pressing plate 8, the pressing plate 8 is in threaded connection with the screw rod 9 through a threaded hole 11, the pressing plate 8 and the screw rod 9 are both provided with two pressing plates, the pressing plate 8 is in threaded connection with the protection seat 1 through the screw rod 9, the pressing plate 8 in rotary connection with the screw rod 9 is rotated through the screw rod 9, and as the screw rod 9 moves downwards, the pressing plate 8 is pressed and clamped on the protection seat 1 through the lead frame end angles of the intelligent power module which are opposite to the end wall of the protection seat 1, so that the purpose of connecting a lead frame with the protection feet is achieved, and when the intelligent power module is used, four protection seats 1 can be respectively sleeved on the four end angle end sides of the lead frame;

on the basis of the first embodiment, as shown in fig. 3 and 4, the protection seat 1 is in threaded connection with the sealing cover 4 through the seat upper opening 2 and the seat lower opening 3, the sealing cover 4 is provided with two, the seat upper opening 2 and the seat lower opening 3 are respectively communicated with the seat upper mesh 5 and the seat lower mesh 6, meanwhile, the protection seat 1 and the fixing column 12 are fixedly connected, dry powder, such as activated carbon particles, can be respectively added through the seat upper opening 2 and the seat lower opening 3, the seat upper mesh 5 and the seat lower mesh 6 are ventilated through the sealing cover 4, and are used for drying and protecting the end wall of the lead frame, meanwhile, the fixing column 12 at the bottom of the protection seat 1 is used for connecting screw parts in a penetrating way, the protection seat 1 is assembled on an electric appliance shell, the rubber pad 10 is made of rubber material and is used for buffering and protecting the lead frame, and the lead frame is protected through the protection seat 1, and the lead frame is prevented from being damaged by impact and vibration when the electric appliance shell is impacted.

Working principle: the screw rod 9 is used for rotating the pressing plate 8 which is rotationally connected with the screw rod 9, the pressing plate 8 is downwards pressed on the protection seat 1 along with the screw rod 9, the lead frame end corners of the intelligent power module which is oppositely arranged on the end wall of the protection seat 1 are pressed and clamped, the purpose of connecting the lead frame with the protection feet is achieved, when the electric appliance is used, four protection seats 1 can be respectively sleeved on the four end corner end sides of the lead frame, dry powder such as activated carbon particles can be respectively added through the upper seat opening 2 and the lower seat opening 3, the upper seat opening 2 and the lower seat opening 3 are sealed through the sealing cover 4, the upper seat mesh 5 and the lower seat mesh 6 are ventilated and used for drying and protecting the end wall of the lead frame, meanwhile, the fixing column 12 at the bottom of the protection seat 1 is used for penetrating the screw piece, the protection seat 1 is assembled on the electric appliance shell, and the rubber pad 10 is made of rubber material and used for buffering and protecting the lead frame, and the electric appliance shell is prevented from being impacted and vibrated when the lead frame is damaged through the protection seat 1.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an intelligent power module is buffering foot protector for lead frame, includes protective seat (1), its characterized in that, seat upper mouth (2) have been seted up to the upper end wall of protective seat (1), seat lower mouth (3) have been seted up at the middle part of protective seat (1), sealed lid (4) are installed to the inboard of seat upper mouth (2), seat lower mouth (3), mesh (5) have been seted up to the side end wall of protective seat (1), mesh (6) have been seted up down to the middle part end wall of protective seat (1), hold-down mechanism (7) have been settled at the terminal angle top of protective seat (1), screw hole (11) have been seted up to the end wall of protective seat (1), fixed column (12) have been settled to the bottom wall of protective seat (1).

2. The buffering foot protector for the intelligent power module lead frame according to claim 1, wherein the pressing mechanism (7) comprises a pressing plate (8), a screw rod (9) and a rubber pad (10), the screw rod (9) is arranged on the end wall of the pressing plate (8) in a penetrating mode, and the rubber pad (10) is arranged on the bottom end wall of the pressing plate (8).

3. The buffering foot protector for the intelligent power module lead frame according to claim 2, wherein the pressing plate (8) is in threaded connection with the screw rod (9) through the threaded hole (11), and the pressing plate (8) and the screw rod (9) are both provided with two.

4. The buffering foot protector for the intelligent power module lead frame according to claim 2, wherein the pressing plate (8) is in threaded connection with the protector base (1) through a screw rod (9), and the pressing plate (8) is in adhesive connection with the rubber pad (10).

5. The buffering foot protector for the intelligent power module lead frame according to claim 1, wherein the protecting seat (1) is in threaded connection with the sealing cover (4) through the seat upper opening (2) and the seat lower opening (3), and the sealing covers (4) are provided with two.

6. The buffering foot protector for the intelligent power module lead frame according to claim 1, wherein the seat upper opening (2) and the seat lower opening (3) are respectively communicated with the seat upper mesh (5) and the seat lower mesh (6), and meanwhile, the protecting seat (1) and the fixing column (12) are fixedly connected.