CN215396468U

CN215396468U - Power module jig capable of effectively relieving layered tear resistance of insulating layer

Info

Publication number: CN215396468U
Application number: CN202121806317.6U
Authority: CN
Inventors: 刘国清; 胡旭伟
Original assignee: Hangzhou Bigeng Automation Equipment Co ltd
Current assignee: Hangzhou Bigeng Automation Equipment Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-01-04
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a power module jig capable of effectively relieving insulation layer delamination and tearing resistance, which comprises a lower die holder and an upper die holder, wherein an upper die cavity is formed in the bottom of the upper die holder, a heat-conducting plate is fixedly connected to the inner wall of the upper die cavity, heat-radiating fins are fixedly connected to both sides of the heat-conducting plate, and one side of each heat-radiating fin, which is far away from the heat-conducting plate, penetrates through the upper die holder and extends to the outside of the upper die holder. This effectively alleviate anti power module tool of tearing of insulating layer layering, through the heat-conducting plate with the heat conduction of plastic envelope material to on the fin, fin derives the tool with the heat, the refrigerator cools off the inside air of box simultaneously, air transmission after the cooling is to the shell in, when making the fan rotate, can blow cooling air to fin outer end, cool down fin fast, thereby accelerate fin's heat conduction efficiency, reduce the temperature difference, effectively alleviate the layering and the tearing of insulating layer.

Description

Power module jig capable of effectively relieving layered tear resistance of insulating layer

Technical Field

The utility model relates to the technical field of power module jigs, in particular to a power module jig capable of effectively relieving the delamination of an insulating layer and resisting tearing.

Background

The power module is a module encapsulated by power electronic devices according to a certain functional combination, the jig is a large-scale tool of carpenters, ironmen, pincers, machines, electric controls and other handcrafts, and is mainly used as a tool for assisting the control of position or action (or both), the jig can be divided into a process assembly jig, an item test jig and a circuit board test jig, wherein the process assembly jig comprises an assembly jig, a welding jig, a disassembly jig, a glue dispensing jig, an irradiation jig, an adjustment jig and a shearing jig, the item test jig comprises a service life test jig, a packaging test jig, an environment test jig, an optical test jig, a shielding test jig, a sound insulation test jig and the like, and the circuit board test jig mainly comprises an ICT test jig, an FCT functional jig, an SMT furnace-passing jig and the like, BGA test fixtures, etc.

At present at the in-process of encapsulating power module, because the compound die moulds plastics when moulding plastics the high temperature of plastic envelope material, and the difference of temperature between the power module can lead to insulating layer layering and tearing to influence the production quality of power module, and current plastic envelope material cooling body cools off through heat radiation fins or water-cooled mode mostly, and cooling rate is slower, thereby leads to the insulating layer to appear layering easily and tear.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a power module jig capable of effectively relieving the delamination of an insulating layer and resisting tearing, and solves the problem that the existing plastic packaging material cooling mechanism is mostly cooled only by a radiating fin or a water cooling mode, so that the insulating layer is easy to delaminate and tear due to a low cooling speed.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides an effectively alleviate anti power module tool of tearing of insulating layer layering, includes die holder and upper die base, the die cavity has been seted up to the bottom of upper die base, and the inner wall fixedly connected with heat-conducting plate of die cavity, the equal fixedly connected with heat radiation fins in both sides of heat-conducting plate, one side that heat radiation fins kept away from the heat-conducting plate runs through the upper die base and extends to the outside of upper die base, the top of upper die base is provided with heat dissipation mechanism.

The heat dissipation mechanism comprises a box body, the bottom of the box body is fixedly connected with the top of the upper die base, the bottom of the inner wall of the box body is fixedly connected with a refrigerator, the two sides of the box body are communicated with air outlet pipes, the two sides of the top of the upper die base are both provided with shells through supporting plates, one ends of the shells, far away from the box body, are communicated with one ends of the shells, the top of the inner wall of the shell is fixedly connected with a motor, one ends of motor output shafts are fixedly connected with fans, and the bottom of the shells is provided with a through groove.

Preferably, both sides of the top of the upper die base are communicated with injection molding pipes, and the bottom ends of the injection molding pipes penetrate through the upper die base and extend into the upper die cavity.

Preferably, the inside of the upper die base is provided with a heat dissipation cavity, and the heat dissipation cavity is positioned right above the upper die cavity.

Preferably, the front side of the right side of the upper die base is communicated with a water inlet pipe, and the water inlet pipe is communicated with a water inlet of the heat dissipation cavity.

Preferably, the back on the right side of the upper die base is communicated with a water outlet pipe, and the water outlet pipe is communicated with a water outlet of the heat dissipation cavity.

Preferably, the top of the lower die base is movably connected with the bottom of the upper die base, and the top of the lower die base is provided with a lower die cavity matched with the upper die cavity.

Advantageous effects

The utility model provides a power module jig capable of effectively relieving the delamination of an insulating layer and resisting tearing. Compared with the prior art, the method has the following beneficial effects:

(1) this effectively alleviate anti power module tool of tearing of insulating layer layering, inner wall fixedly connected with heat-conducting plate through last die cavity, the equal fixedly connected with radiator fin in both sides of heat-conducting plate, the top of upper die base is provided with heat dissipation mechanism, conduct the heat of plastic envelope material to radiator fin through the heat-conducting plate, radiator fin derives the tool with the heat, reduce the temperature of plastic envelope material, the refrigerator cools off the inside air of box simultaneously, air transmission after the cooling is to the shell in, when making the fan rotate, can blow cooling air to radiator fin outer end, cool down radiator fin fast, thereby accelerate radiator fin's heat conduction efficiency, reduce the temperature difference, effectively alleviate the layering of insulating layer and tear.

(2) This effectively alleviate anti power module tool of tearing of insulating layer layering, the inside through the upper die base has been seted up the heat dissipation chamber, and the heat dissipation chamber is located the die cavity directly over, the front intercommunication on upper die base right side has the inlet tube, the back intercommunication on upper die base right side has the outlet pipe, when carrying out the heat dissipation through heat radiation fins, outside water conveying mechanism communicates with the inlet tube in the upper die base, cooling water flows through the heat dissipation chamber, take away the partial heat of plastic-sealed material, the heat dissipation of plastic-sealed material has further been accelerated, the off-the-shelf quality is improved.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is a top view of the internal structure of the heat dissipation chamber of the present invention.

In the figure: 1 lower die holder, 2 upper die holders, 3 upper die cavities, 4 heat-conducting plates, 5 heat-radiating fins, 6 heat-radiating mechanisms, 61 box bodies, 62 refrigerators, 63 air outlet pipes, 64 shells, 65 motors, 66 fans, 67 through grooves, 7 injection molding pipes, 8 heat-radiating cavities, 9 water inlet pipes, 10 water outlet pipes and 11 lower die cavities.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an effectively alleviate anti power module tool of tearing of insulating layer layering, including die holder 1 and upper die base 2, die cavity 3 has been seted up to the bottom of upper die base 2, and the inner wall fixedly connected with heat-conducting plate 4 of die cavity 3, heat-conducting plate 4 is made for the graphite alkene material, the heat conduction effect is good, the equal fixedly connected with radiating fin 5 in both sides of heat-conducting plate 4, radiating fin 5 keeps away from one side of heat-conducting plate 4 and runs through upper die base 2 and extend to the outside of upper die base 2, the top of upper die base 2 is provided with heat dissipation mechanism 6.

The heat dissipation mechanism 6 comprises a box body 61, an air inlet pipe is arranged at the top of the box body 61, an electromagnetic valve is arranged in the air inlet pipe, the bottom of the box body 61 is fixedly connected with the top of the upper die base 2, a refrigerator 62 is fixedly connected with the bottom of the inner wall of the box body 61, the refrigerator 62 is controlled by an external switch and is connected with an external power supply by a lead, the working principle and the specific structure of the refrigerator 62 are well known by those skilled in the art and are not described herein, an air outlet pipe 63 is communicated with two sides of the box body 61, a shell 64 is fixedly connected with two sides of the top of the upper die base 2 by a supporting plate, one side of the shell 64 is communicated with one end of the air outlet pipe 63 far away from the box body 61, a motor 65 is fixedly connected with the top of the inner wall of the shell 64, the motor 65 is controlled by the external switch and is connected with the external power supply by a lead, and one end of an output shaft of the motor 65 is fixedly connected with a fan 66, the bottom of the housing 64 is formed with a through slot 67.

The two sides of the top of the upper die holder 2 are communicated with injection molding tubes 7, the bottom ends of the injection molding tubes 7 penetrate through the upper die holder 2 and extend to the inner part of the upper die cavity 3, a heat dissipation cavity 8 is arranged in the upper die holder 2, the heat dissipation cavity 8 is in a coil shape, the heat dissipation cavity 8 is positioned right above the upper die cavity 3, the front side of the right side of the upper die holder 2 is communicated with a water inlet pipe 9, and the water inlet pipe 9 is communicated with the water inlet of the heat dissipation cavity 8, the back surface of the right side of the upper die base 2 is communicated with a water outlet pipe 10, electromagnetic valves are arranged inside the water inlet pipe 9 and the water outlet pipe 10, controlled by an external switch, a water outlet pipe 10 is communicated with a water outlet of the heat dissipation cavity 8, the top of the lower die holder 1 is movably connected with the bottom of the upper die holder 2, the top of the lower die holder 1 is provided with a lower die cavity 11 matched with the upper die cavity 3, the parts of the device not involved are the same as or can be implemented using prior art.

When in use, the power module is placed in the lower die cavity 11, the plastic package material is injected into the upper die cavity 3 through the injection molding pipe 7, the power module is packaged, after the plastic package material is injected, the heat of the plastic package material is conducted to the radiating fins 5 by the heat conducting plate 4, the heat is conducted out of the jig by the radiating fins 5, the temperature of the plastic package material is reduced, the air inside the box body 61 is cooled by the refrigerator 62, the cooled air is transmitted into the shell 64 through the air outlet pipe 63, the motor 65 is started, the fan 66 is driven to rotate, the fan 66 blows the cooled air to the outer ends of the radiating fins 5, the radiating fins 5 are rapidly cooled, so that the heat conduction efficiency of the radiating fins 5 is accelerated, the heat dissipation is accelerated, meanwhile, the external water conveying mechanism is communicated with the water inlet pipe 9 and the water outlet pipe 10 of the upper die base 2, the cooling water is injected, and circularly flows through the radiating cavity 8, and partial heat of the plastic package material is taken away, further quickening the heat dissipation of the plastic package material and effectively relieving the delamination and tearing of the insulating layer.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an effectively alleviate power module tool that tears of insulating layer layering, includes die holder (1) and upper die base (2), its characterized in that: an upper die cavity (3) is formed in the bottom of the upper die base (2), a heat conducting plate (4) is fixedly connected to the inner wall of the upper die cavity (3), heat radiating fins (5) are fixedly connected to two sides of the heat conducting plate (4), one side, far away from the heat conducting plate (4), of each heat radiating fin (5) penetrates through the upper die base (2) and extends to the outside of the upper die base (2), and a heat radiating mechanism (6) is arranged at the top of the upper die base (2);

heat dissipation mechanism (6) include box (61), the bottom of box (61) and the top fixed connection of upper die base (2), the bottom fixedly connected with refrigerator (62) of box (61) inner wall, the both sides of box (61) all communicate has outlet duct (63), the both sides at upper die base (2) top all are linked together through backup pad fixedly connected with shell (64), and the one end of keeping away from box (61) with outlet duct (63) in one side of shell (64), the top fixedly connected with motor (65) of shell (64) inner wall, and the one end fixedly connected with fan (66) of motor (65) output shaft, logical groove (67) have been seted up to the bottom of shell (64).

2. The power module jig for effectively relieving insulation layer delamination tear resistance of claim 1, wherein: the die is characterized in that two sides of the top of the upper die base (2) are communicated with injection pipes (7), and the bottom ends of the injection pipes (7) penetrate through the upper die base (2) and extend into the upper die cavity (3).

3. The power module jig for effectively relieving insulation layer delamination tear resistance of claim 1, wherein: a heat dissipation cavity (8) is formed in the upper die base (2), and the heat dissipation cavity (8) is located right above the upper die cavity (3).

4. The jig for effectively relieving the delamination of the insulation layer and tearing resistance of the power module according to claim 3, wherein: the front side of the right side of the upper die holder (2) is communicated with a water inlet pipe (9), and the water inlet pipe (9) is communicated with a water inlet of the heat dissipation cavity (8).

5. The jig for effectively relieving the delamination of the insulation layer and tearing resistance of the power module according to claim 3, wherein: the back of the right side of the upper die base (2) is communicated with a water outlet pipe (10), and the water outlet pipe (10) is communicated with a water outlet of the heat dissipation cavity (8).

6. The power module jig for effectively relieving insulation layer delamination tear resistance of claim 1, wherein: the top of the lower die holder (1) is movably connected with the bottom of the upper die holder (2), and the top of the lower die holder (1) is provided with a lower die cavity (11) matched with the upper die cavity (3).