CN203983258U - A kind of composite type bonding shell - Google Patents
A kind of composite type bonding shell Download PDFInfo
- Publication number
- CN203983258U CN203983258U CN201420044824.4U CN201420044824U CN203983258U CN 203983258 U CN203983258 U CN 203983258U CN 201420044824 U CN201420044824 U CN 201420044824U CN 203983258 U CN203983258 U CN 203983258U
- Authority
- CN
- China
- Prior art keywords
- casing
- terminal
- bottom plate
- shell
- shell bottom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 238000005452 bending Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005269 aluminizing Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
Abstract
A kind of composite type bonding shell, it mainly by casing, several terminals and shell bottom plate by assembling, described terminal inserts in the through hole of casing according to physical circuit layout, and the top of casing disposes and compresses terminal in case the loosening shell bottom plate of not-go-end; The through hole arranging in described casing is wedge shape square hole, terminal head partial width is less than wedge shape square hole, the both sides of terminal upper portion have broached-tooth design to insert casing tapered wall and it is quite located, its sawtooth embeds casing, and the both sides that are positioned at broached-tooth design below on terminal have wedge shape to be embedded in the rear end of the wedge shape square hole of casing; Described terminal and shell bottom plate close contact are interference fit between shell bottom plate and casing; Shell bottom plate sinks to 0.1～2mm in casing after grafting completes; The features such as it has rational in infrastructure, easy to use, reliable, it has terminal injection molding type shell and terminal plug-in type shell advantage concurrently.
Description
Technical field
The utility model relates to a kind of composite type bonding shell for power module package, belong to design and the encapsulation technology field of the power model of power electronics.
Background technology
It is fixing reliably that supersonic bonding requires workpiece to have when bonding, and bonding face will keep clean simultaneously; Insecure fixedly meeting makes Workpiece vibration cause ultrasonic energy loss when bonding, causes the unreliable or rosin joint of solder joint, and cause cannot bonding because being subject to polluting for bonding face.
In traditional power semiconductor package industry, the shell that bonding is used is roughly divided into two kinds of terminal injection molding type and terminal plug-in types;
Terminal injection molding type shell wherein, the effect of its fixed terminal is best, but when injection moulding, easily produces the pollution of bonding face, so to injection mold require high; While terminal injection molding type bonding shell underaction, different circuit needs different moulds.There is fewer companies to adopt the injection casing of full terminal, then according to concrete circuit, unwanted terminal is cut off, can save like this expense of mould, but increased material cost and follow-up processing cost;
The shell of terminal plug-in type can prevent that terminal is contaminated in the course of processing, can change plug-in position and grafting quantity according to different circuit, but the crystallized ability of terminal is poor, under the effect of external force, terminal can be extracted simultaneously.
Utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and provides a kind of rational in infrastructure, easy to use, reliable, can have the composite type bonding shell for power module package of terminal injection molding type shell and terminal plug-in type shell advantage concurrently.
The purpose of this utility model completes by following technical solution, described composite type bonding shell, it mainly by casing, several terminals and shell bottom plate by assembling, described terminal inserts in the through hole of casing according to physical circuit layout, and the top of casing disposes and compresses terminal in case the loosening shell bottom plate of not-go-end.
The through hole arranging in described casing is wedge shape square hole, terminal head partial width is less than wedge shape square hole, the both sides of terminal upper portion have broached-tooth design to insert casing tapered wall and it is quite located, its sawtooth embeds casing, and the both sides that are positioned at broached-tooth design below on terminal have wedge shape to be embedded in the rear end of the wedge shape square hole of casing.
Described terminal and shell bottom plate close contact are interference fit between shell bottom plate and casing; Shell bottom plate sinks to 0.1～2mm in casing after grafting completes.
Described casing is used PBT, and PA or PPS injected plastics material form by injection mo(u)lding; Described terminal adopts oxygen-free copper or fine copper to form by punching press and bending and molding, and it is positioned at wedge shape position and is horizontally arranged with hole.
On described casing, be provided with location hole, and shell bottom plate is inserted in and in corresponding location hole, is carried out interference connection by the reference column arranging on it.
Described terminal upper portion has a dogleg section, and the bottom surface of this dogleg section is the bonding face that aluminizing or nickel plating, gold are processed, and is provided with groove in a side of wrap direction.
The formation above of the bonding face of described terminal and shell bottom plate closely cooperates, and the wedged hole front end on casing and the bonding face 21 of terminal have the gap of 0.01mm～0.3mm, and the groove 26 of casing wedged hole front end and terminal bending is contactless.
The surrounding of described shell bottom plate has chamfering, and there is the difference in height of 0.1mm～2mm the bottom surface of shell bottom plate and casing bottom surface.
The utlity model has the features such as rational in infrastructure, easy to use, reliable, it has terminal injection molding type shell and terminal plug-in type shell advantage concurrently.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: shown in Fig. 1, composite type bonding shell described in the utility model, it mainly by casing 1, several terminals 2 and shell bottom plate 3 by assembling, described terminal 2 inserts in the through hole of casing 1 according to physical circuit layout, and the top of casing 1 disposes and compresses terminal 2 in case the loosening shell bottom plate 3 of not-go-end.
The through hole of described casing 1 interior setting is wedged hole 12, terminal head 24 partial widths are less than wedged hole 12, the both sides of terminal upper portion have broached-tooth design 22 to insert casing tapered wall 16 and it is quite located, its sawtooth embeds casing, and the both sides that are positioned at broached-tooth design 22 belows on terminal have wedge shape 23 to be embedded in the rear end 17 of the wedge shape square hole 12 of casing.
Described terminal and shell bottom plate 3 close contacts, 1 of shell bottom plate 3 and casing are interference fit; Shell bottom plate 3 sinks to 0.1～2mm in casing after grafting completes.
Described casing 1 is used PBT, and PA or PPS injected plastics material form by injection mo(u)lding; Described terminal 2 adopts oxygen-free copper or fine copper to form by punching press and bending and molding, and it is porose that it is positioned at wedge shape 23 position horizontally sets.
On described casing 1, be provided with location hole 13, and shell bottom plate 3 is inserted in corresponding location hole 13 and is carried out interference connection by the reference column 34 arranging on it.
One dogleg section 25 is arranged at described terminal 2 tops, and the bottom surface of this dogleg section 25 is the bonding face 21 that aluminizing or nickel plating, gold are processed, and is provided with groove 26 in a side of wrap direction.
33 formation above of the bonding face 21 of described terminal and shell bottom plate 3 closely cooperate, wedge shape square hole front end 15 on casing 1 and the bonding face 21 of terminal 2 have the gap of 0.01mm～0.3mm, and casing 1 wedged hole front end 15 is contactless with the groove 26 of terminal 2 bendings.
The surrounding of described shell bottom plate 3 has chamfering 32, and there is the difference in height of 0.1mm～2mm bottom surface 31 and casing 1 bottom surface 14 of shell bottom plate 3.
embodiment: as shown in Figure 1, whole shell is comprised of casing 1 terminal 2 and shell bottom plate 3 in the assembling of composite type bonding shell, can be according to different circuit requirements at corresponding position inserted terminals on casing.
By fixture, casing is fixed, under certain External Force Acting, terminal 2 is inserted in casing wedge shape square hole 12, terminal head 24 partial widths are less than wedge shape square hole 12, when inserting casing tapered wall 16, terminal broached-tooth design 22 quite locates with it, its sawtooth embeds casing, until the wedge shape 23 of terminal cannot be passed through casing wedged hole rear end 17.
Shell bottom plate as shown in Figure 1, inserts shell bottom plate reference column 34 in casing location holes 13 both interference fit after completing the grafting of terminal.Under certain External Force Acting, make terminal bottom surface 21 and 33 form and to closely cooperate above shell bottom plate.Casing wedged hole front end 15 and terminal bonding face 21 have the gap of 0.01mm～0.3mm, and casing wedged hole front end 15 is contactless with terminal bending groove 26.
Surrounding at shell bottom plate has chamfering 32.Assemble rear casing base plate bottom surface 31 and casing bottom surface 14 and had the difference in height of 0.1mm～2mm.
Claims (8)
1. a composite type bonding shell, it mainly by casing, several terminals and shell bottom plate by assembling, it is characterized in that described terminal (2) inserts in the through hole of casing (1) according to physical circuit layout, the top of casing (1) disposes and compresses terminal (2) in case the loosening shell bottom plate (3) of not-go-end.
2. composite type bonding shell according to claim 1, it is characterized in that the through hole arranging in described casing (1) is wedge shape square hole (12), head (24) partial width of terminal (2) is less than wedged hole (12), the both sides on terminal (2) top have broached-tooth design (22) to insert casing (1) tapered wall 16 and it is quite located, its sawtooth embeds casing, and the both sides that are positioned at broached-tooth design (22) below on terminal (2) have wedge shape (23) to be embedded in the rear end (17) of the wedged hole (12) of casing.
3. composite type bonding shell according to claim 1 and 2, is characterized in that described terminal and shell bottom plate (3) close contact, between shell bottom plate (3) and casing (1), is interference fit; Shell bottom plate (3) sinks to 0.1～2mm in casing after grafting completes.
4. composite type bonding shell according to claim 3, is characterized in that described casing (1) is used PBT, and PA or PPS injected plastics material form by injection mo(u)lding; Described terminal (2) adopts oxygen-free copper or fine copper to form by punching press and bending and molding, and it is porose that it is positioned at wedge shape (23) position horizontally set.
5. composite type bonding shell according to claim 4, it is characterized in that being provided with location hole (13) on described casing (1), and shell bottom plate (3) is inserted in corresponding location hole (13) and is carried out interference connection by the reference column (34) arranging on it.
6. composite type bonding shell according to claim 4, it is characterized in that a dogleg section (25) is arranged at described terminal (2) top, the bottom surface of this dogleg section (25) is the bonding face (21) that aluminizing or nickel plating, gold are processed, and is provided with groove (26) in a side of wrap direction.
7. composite type bonding shell according to claim 6, it is characterized in that the bonding face (21) of described terminal (2) and shell bottom plate (3) above (33) form and closely cooperate, wedged hole front end (15) on casing (1) and the bonding face (21) of terminal (2) have the gap of 0.01mm～0.3mm, and casing (1) wedged hole front end (15) is contactless with the groove (26) of terminal (2) bending.
8. composite type bonding shell according to claim 5, is characterized in that the surrounding of described shell bottom plate (3) has chamfering (32), and there is the difference in height of 0.1mm～2mm the bottom surface (31) of shell bottom plate (3) and casing (1) bottom surface (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044824.4U CN203983258U (en) | 2014-01-24 | 2014-01-24 | A kind of composite type bonding shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044824.4U CN203983258U (en) | 2014-01-24 | 2014-01-24 | A kind of composite type bonding shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203983258U true CN203983258U (en) | 2014-12-03 |
Family
ID=51980681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044824.4U Expired - Lifetime CN203983258U (en) | 2014-01-24 | 2014-01-24 | A kind of composite type bonding shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203983258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779296A (en) * | 2014-01-24 | 2014-05-07 | 嘉兴斯达微电子有限公司 | Combined bonding shell |
-
2014
- 2014-01-24 CN CN201420044824.4U patent/CN203983258U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779296A (en) * | 2014-01-24 | 2014-05-07 | 嘉兴斯达微电子有限公司 | Combined bonding shell |
| CN103779296B (en) * | 2014-01-24 | 2017-02-01 | 嘉兴斯达微电子有限公司 | Combined bonding shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |