CN214477384U - Plug-in type power module shell capable of preventing terminal from falling off - Google Patents
Plug-in type power module shell capable of preventing terminal from falling off Download PDFInfo
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- CN214477384U CN214477384U CN202120331004.3U CN202120331004U CN214477384U CN 214477384 U CN214477384 U CN 214477384U CN 202120331004 U CN202120331004 U CN 202120331004U CN 214477384 U CN214477384 U CN 214477384U
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- plug
- shell
- terminal
- power module
- main body
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- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009713 electroplating Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses a plug-in type power module shell for preventing terminal from falling off, which comprises a shell and a power module body arranged in the shell, wherein the shell mainly comprises a shell and a terminal arranged on the shell in a plug-in type manner, the terminal mainly comprises a base, a main body part and a leading-out part, the base is a block structure which is transversely arranged, a plug-in part for connecting the terminal in the shell is vertically arranged downwards on one side edge of the length direction of the base, and the plug-in part passes through the shell and is clamped on an insulating substrate of the power module body through a lock joint edge arranged at the bottom of the plug-in part; the side edge of the base, which is far away from one side of the plugging part, is connected with the main body part through an upwards extending bent edge, the top of the main body part is connected with the leading-out part, the width of the leading-out part is smaller than that of the main body part, and the top of the leading-out part is provided with a leading-out end with a trapezoidal structure; and a plurality of tooth-shaped grooves convenient for inserting and fixing the terminals are formed in the left side wall and the right side wall of the main body part.
Description
Technical Field
The utility model relates to an electron device technical field, concretely relates to plug-in type power module shell that prevents terminal and drop.
Background
A power module is a power driver that combines power electronics and integrated circuit technology. The intelligent power module gains a bigger and bigger market due to the advantages of high integration level, high reliability and the like, is particularly suitable for frequency converters of driving motors and various inverter power supplies, and is a common power electronic device for variable-frequency speed regulation, metallurgical machinery, electric traction, servo drive and variable-frequency household appliances. The power module comprises an Insulated Gate Bipolar Transistor (IGBT) module, a diode module, an M0SFET module, an Intelligent Power (IPM) module and the like. When the shell is manufactured by adopting an injection molding technology, the frequency of terminal falling is greatly reduced, but the manufacturing cost is high; the terminal is connected with the shell in a plugging mode and is directly connected to the shell in a welding mode, the method is simple, the cost is low, and the terminal is easy to fall off in the process of repeatedly plugging and unplugging the power module.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a simple structure and can effectively improve the plug-in type power module shell that prevents that the terminal from droing of module plug stability.
The utility model aims at providing a plug-in type power module shell for preventing terminal from falling off, which comprises a shell and a power module body arranged in the shell, wherein the shell mainly comprises a shell and a terminal arranged on the shell in a plug-in type manner, the terminal mainly comprises a base, a main body part and a leading-out part which are arranged in an integrated manner, the base is a block structure which is transversely arranged, a plug-in part for connecting the terminal in the shell is vertically arranged downwards on one side edge of the length direction of the base, and the plug-in part passes through the shell and is connected on an insulating substrate of the power module body through a lock joint edge arranged at the bottom of the plug-in part; the side edge of the base, which is far away from one side of the plugging part, is connected with the main body part through a bending edge extending upwards, the top of the main body part is connected with the leading-out part, the width of the leading-out part is smaller than that of the main body part, and the top of the leading-out part is provided with a leading-out end with a trapezoidal structure.
Furthermore, a plurality of tooth-shaped grooves convenient for inserting and fixing the terminals are formed in the left side wall and the right side wall of the main body part, and the depth of the tooth-shaped grooves is less than one fourth of the width of the main body part; a round hole is arranged on the upper part of the main body part in a penetrating way.
Furthermore, the tooth-shaped groove comprises an upper tooth groove and a lower tooth groove, wherein the upper tooth groove is gradually inclined downwards from outside to inside, the lower tooth groove is connected with the inner end of the upper tooth groove and extends outwards in parallel or downwards from inside to outside gradually, and an arc transition edge is arranged at the joint of the upper tooth groove and the lower tooth groove.
Further, the outer surface of the terminal is subjected to plating treatment.
Furthermore, the buckling edge is clamped on the insulating substrate of the power module body and is welded and fixed through the solder.
The utility model has the advantages of: the utility model discloses simple structure through dual fixed, has not only fixed on terminal surface, has also fixed through the buckle in the shell bottom. Thereby greatly improve the performance of module for be difficult to warp when power module terminal receives the power of upwards pulling, prevent after the welding surface drops, the terminal roll-off.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the terminal of the present invention;
fig. 3 is a schematic structural diagram of the housing of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-3, the plug-in type power module housing for preventing a terminal from falling described in the present invention comprises a housing and a power module body disposed in the housing, the housing mainly comprises a housing 1 and a terminal 2 disposed on the housing 1 in a plug-in type, the terminal 2 mainly comprises a base 3, a main body 4 and a leading-out portion 5, the base 3 is a horizontally disposed block structure, a plug-in portion 6 for connecting the terminal 2 in the housing 1 is vertically disposed downwards on one side edge of the base 3 in the length direction, the plug-in portion 6 passes through the housing 1 and is connected to an insulating substrate of the power module body through a fastening edge 7 disposed at the bottom of the plug-in portion 6; the side edge of the base 3 far away from one side of the inserting part 6 is connected with the main body part 4 through a bending edge 8 extending upwards, the top of the main body part 4 is connected with the leading-out part 5, the width of the leading-out part 5 is smaller than that of the main body part 4, and the top of the leading-out part 5 is provided with a leading-out end 9 in a trapezoidal structure.
Referring to fig. 2, a plurality of tooth-shaped grooves 10 for facilitating the insertion and fixation of the terminals are formed on the left and right side walls of the main body portion 4, and the depth of the tooth-shaped grooves 10 is less than one fourth of the width of the main body portion 4; a circular hole 11 is formed in the upper portion of the body 4.
Referring to fig. 2, the gullet 10 includes an upper gullet 12 inclined downward from outside to inside and a lower gullet 13 connected to the inner end of the upper gullet 12 and extending outward in parallel or downward from inside to outside, and an arc transition edge 14 is disposed at the connection between the upper gullet 12 and the lower gullet 13. The outer surface of the terminal 2 is subjected to plating treatment. The buckling edges 7 are clamped on the insulating substrate of the power module body and are welded and fixed through welding fluxes.
The power module body mainly comprises a chip, an insulating substrate and a heat dissipation plate, wherein the terminal is directly inserted into the shell and is directly connected in a welding mode, and the insulating substrate is connected through a buckle at the bottom of the terminal. The chips are reflowed and welded on the conductive copper layer of the insulating substrate, the insulating substrate is directly welded on the heat dissipation plate, and the chips, the corresponding conductive layers of the chips and the insulating substrate and the corresponding leading-out positions of the terminals and the insulating substrate are electrically connected through aluminum wire bonding.
The housing is suitable for an Insulated Gate Bipolar Transistor (IGBT) module, and also comprises a diode module, an M0SFET module, an Intelligent Power (IPM) module and the like. The utility model discloses simple structure through dual fixed, has not only fixed on terminal surface, has also fixed through the buckle in the shell bottom. Thereby greatly improve the performance of module for be difficult to warp when power module terminal receives the power of upwards pulling, prevent after the welding surface drops, the terminal roll-off.
The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a prevent plug-in type power module shell that terminal drops, includes shell and the power module body of setting in this shell, its characterized in that: the shell mainly comprises a shell and a terminal arranged on the shell in a plug-in mode, the terminal mainly comprises a base, a main body part and a leading-out part which are arranged in an integrated mode, the base is of a transversely arranged block-shaped structure, a plug-in part used for clamping the terminal in the shell is vertically arranged downwards on one side edge of the base in the length direction, and the plug-in part penetrates through the shell and is clamped on an insulating substrate of the power module body through a buckling edge arranged at the bottom of the plug-in part; the side edge of the base, which is far away from one side of the plugging part, is connected with the main body part through a bending edge extending upwards, the top of the main body part is connected with the leading-out part, the width of the leading-out part is smaller than that of the main body part, and the top of the leading-out part is provided with a leading-out end with a trapezoidal structure.
2. The plug-in power module housing for preventing the terminal from falling off as claimed in claim 1, wherein: the left side wall and the right side wall of the main body part are provided with a plurality of tooth-shaped grooves which are convenient for inserting and fixing the terminals, and the depth of the tooth-shaped grooves is less than one fourth of the width of the main body part; a round hole is arranged on the upper part of the main body part in a penetrating way.
3. The plug-in power module housing for preventing the terminal from falling off as claimed in claim 2, wherein: the tooth-shaped groove comprises an upper tooth groove and a lower tooth groove, the upper tooth groove is gradually inclined downwards from outside to inside, the lower tooth groove is connected with the inner end of the upper tooth groove and extends outwards in parallel or downwards gradually from inside to outside, and an arc transition edge is arranged at the joint of the upper tooth groove and the lower tooth groove.
4. The plug-in power module housing for preventing the terminal from falling off as claimed in claim 2 or 3, wherein: the outer surface of the terminal is subjected to electroplating treatment.
5. The plug-in power module housing for preventing the terminal from falling off as claimed in claim 2 or 3, wherein: the fastening edge is clamped on the insulating substrate of the power module body and is welded and fixed through welding flux.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120331004.3U CN214477384U (en) | 2021-02-05 | 2021-02-05 | Plug-in type power module shell capable of preventing terminal from falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120331004.3U CN214477384U (en) | 2021-02-05 | 2021-02-05 | Plug-in type power module shell capable of preventing terminal from falling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214477384U true CN214477384U (en) | 2021-10-22 |
Family
ID=78137623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120331004.3U Active CN214477384U (en) | 2021-02-05 | 2021-02-05 | Plug-in type power module shell capable of preventing terminal from falling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214477384U (en) |
-
2021
- 2021-02-05 CN CN202120331004.3U patent/CN214477384U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.988, Kexing Road, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Star Semiconductor Co.,Ltd. Address before: No.988, Kexing Road, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: STARPOWER SEMICONDUCTOR Ltd. |