CN209029364U - A kind of power module shell - Google Patents
A kind of power module shell Download PDFInfo
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- CN209029364U CN209029364U CN201822122144.0U CN201822122144U CN209029364U CN 209029364 U CN209029364 U CN 209029364U CN 201822122144 U CN201822122144 U CN 201822122144U CN 209029364 U CN209029364 U CN 209029364U
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- shell
- power module
- electrical contact
- fixedly connected
- contact area
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Abstract
The utility model relates to power module technical fields, especially a kind of power module shell, including compressing region, first electrical contact area is fixedly connected with area with pcb board, the compression region has two pieces, it is symmetrically distributed in the two sides of shell, first electrical contact area is located at the middle position of the upper surface of shell, the compression region is separated with the first electrical contact area by strip partition grooves, the pcb board is fixedly connected there are four areas, it is evenly distributed on four corners of shell, two ipsilateral pcb boards be fixedly connected area pass through respectively an arc extend with compression region connect, the encapsulation that the utility model can solve power module in the prior art is complex and costly, power module long-term reliability after encapsulation is poor.
Description
Technical field
The utility model relates to power module technical field, specific field is a kind of power module shell.
Background technique
Currently, power module is in frequency converter, inversion welding, induction heating, rail traffic, wind energy, the neck such as solar power generation
Domain using more and more extensive, it is higher and higher to the reliability requirement of the encapsulation of power module, it is desirable that the encapsulation of power module is set
Meter can overcome harsh natural environment and artificial application environment bring to influence.
Power semiconductor modular may include heat dissipation contact zone (substrate), for the heat transfer attachment device with radiator,
And a press element (shell) being connect with power semiconductor modular, substrate is pressed on heat dissipation element (radiator).
In order to which the power loss guaranteed in substrate operational process can smoothly be dissipated to radiator in the form of heat transfer
In, press element needs accurately and reliably package substrate, and the encapsulation of power module is complicated and at high cost in the prior art,
The setup error in enclosure location or direction may will affect cooling effect, so that the long-term reliability of power module is influenced, in addition,
Connection between power semiconductor modular and shell is related to dimensional tolerance, these tolerances have the size of the pressure force applied
Unpredictalbe influence.
Utility model content
The purpose of this utility model is to provide a kind of power module shells, to solve the envelope of power module in the prior art
Fill complex and costly, the power module long-term reliability after encapsulation is poor.
To achieve the above object, the utility model provides the following technical solutions: a kind of power module shell, including plastic zone
Domain, the first electrical contact area are fixedly connected with area with pcb board, and the compression region has two pieces, is symmetrically distributed in the two sides of shell, described
First electrical contact area is located at the middle position of the upper surface of shell, and the compression region is separated with the first electrical contact area by strip
Slot separates, and the pcb board is fixedly connected there are four areas, is evenly distributed on four corners of shell, and two ipsilateral pcb boards are fixed
Bonding pad passes through arc extension respectively and connect with region is compressed.
Preferably, the lower surface of the shell is equipped with the accommodation groove of a receiving substrate, the depth and base of the accommodation groove
The thickness of plate matches.
Preferably, the first electrical contact area and interiors of products terminal are in electrical contact.
Preferably, the pcb board, which is fixedly connected with area and is connected and fixed with pcb board, connect.
Preferably, the center for compressing region is equipped with connecting hole, and screw passes through connecting hole and fixes shell and radiator
Connection.
Compared with prior art, the utility model has the beneficial effects that be connected on radiator on shell using screw, the
One electrical contact area is separated with compression region by partition grooves, and four pcb boards are fixedly connected with region and do arc extension, with compression region
Connection, four corners of the Pivot Distribution for the pressure force that module can be installed on the shell, makes pressure be more evenly distributed, simultaneously
Extend the conducting path of mount stress, the direct stress for reducing screw installation influences, and has buffering effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment one；
Fig. 2 is another viewing angle constructions schematic diagram of the utility model embodiment one；
Fig. 3 is another viewing angle constructions schematic diagram of the utility model embodiment one；
Fig. 4 is another viewing angle constructions schematic diagram of the utility model embodiment one；
Fig. 5 is the structural schematic diagram of the utility model embodiment two；
Fig. 6 is another viewing angle constructions schematic diagram of the utility model embodiment two；
Fig. 7 is another viewing angle constructions schematic diagram of the utility model embodiment two；
Fig. 8 is another viewing angle constructions schematic diagram of the utility model embodiment two.
In figure: 1 first electrical contact area, 2 compression regions, 3PCB plate is fixedly connected with area, 4 arcs extend, 5 partition grooves.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of power module shell, including compress region
2, the first electrical contact area 1 is fixedly connected with area 3 with pcb board, and compressing region 2 has two pieces, is symmetrically distributed in the two sides of shell long side, the
One electrical contact area 1 is located at the middle position of the upper surface of shell, compresses region 2 and the first electrical contact area 1 and passes through strip partition grooves 5
It separates, pcb board is fixedly connected there are four areas 3, is evenly distributed on four corners of shell, and two ipsilateral pcb boards are fixedly connected
Area 3 extends 4 by an arc respectively and connect with region 2 is compressed, and extends the pressure force that 4 can install module by the arc
Four corners of Pivot Distribution on the shell, make pressure be more evenly distributed, while extending the conducting path of mount stress, reduce spiral shell
The direct stress of nail installation influences, and has buffering effect, it is not easy to it damages, the process of additionally mounted power module is simple and fast,
Improve installation effectiveness.
Preferably, the lower surface of shell is equipped with the accommodation groove of a receiving substrate, the depth of accommodation groove and the thickness of substrate
Match, may insure to compress substrate on the heat-radiating element in this way, be conducive to the heat dissipation of substrate, that improves substrate uses the longevity
Life.
Specifically, the first electrical contact area 1 and interiors of products terminal are in electrical contact.
It is connected and fixed and connect with pcb board specifically, pcb board is fixedly connected with area 3.
Further, the center for compressing region 2 is equipped with connecting hole, and screw, which passes through connecting hole and fixes shell and radiator, to be connected
It connects, is connected using screw, it is simple and fast.
In the application, the first electrical contact area 1 is separated with compression region 2 by partition grooves 5, and four pcb boards are fixedly connected with area 3
Domain does arc and extends 4, connect with region 2 is compressed, can be by four of the Pivot Distribution of the pressure force of module installation on the shell
Corner makes pressure be more evenly distributed, while extending the conducting path of mount stress, and the direct stress for reducing screw installation influences,
With buffering effect, installation process is simplified, improves installation effectiveness, while improving the service life of power module.
Embodiment two
Fig. 5-8 is please referred to, the utility model provides a kind of technical solution: a kind of power module shell, including compress region
2, the first electrical contact area 1 is fixedly connected with area 3 with pcb board, and compressing region 2 has two pieces, is symmetrically distributed in the two sides of shell short side, the
One electrical contact area 1 is located at the middle position of the upper surface of shell, compresses region 2 and the first electrical contact area 1 and passes through strip partition grooves 5
It separates, pcb board is fixedly connected there are four areas 3, is evenly distributed on four corners of shell, and two ipsilateral pcb boards are fixedly connected
Area 3 extends 4 by an arc respectively and connect with region 2 is compressed, and extends the pressure force that 4 can install module by the arc
Four corners of Pivot Distribution on the shell, make pressure be more evenly distributed, while extending the conducting path of mount stress, reduce spiral shell
The direct stress of nail installation influences, and has buffering effect, it is not easy to it damages, the process of additionally mounted power module is simple and fast,
Improve installation effectiveness.
The difference between this embodiment and the first embodiment lies in the compression region 2 in the present embodiment is arranged in the two of shell short side
Side, the encapsulation that equally can solve power module in the prior art is complicated, the power module long-term reliability difference after encapsulation
Problem simplifies installation process, improves installation effectiveness, while improving the service life of power module.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of power module shell, it is characterised in that: fixed including compressing region (2), the first electrical contact area (1) and pcb board
Bonding pad (3), the compression region (2) have two pieces, are symmetrically distributed in the two sides of shell, and first electrical contact area (1) is located at
The middle position of the upper surface of shell, the compression region (2) are separated with the first electrical contact area (1) by strip partition grooves (5),
The pcb board is fixedly connected there are four area (3), is evenly distributed on four corners of shell, and two ipsilateral pcb boards are fixedly connected
Area (3) extends (4) by an arc respectively and connect with region (2) are compressed.
2. a kind of power module shell according to claim 1, it is characterised in that: the lower surface of the shell is equipped with one
The accommodation groove of substrate is accommodated, the depth of the accommodation groove and the thickness of substrate match.
3. a kind of power module shell according to claim 1, it is characterised in that: first electrical contact area (1) and production
The electrical contact of product internal terminal.
4. a kind of power module shell according to claim 1, it is characterised in that: the pcb board be fixedly connected area (3) with
Pcb board is connected and fixed.
5. a kind of power module shell according to claim 1, it is characterised in that: the center for compressing region (2) is set
There is connecting hole, screw passes through connecting hole and is fixedly connected with shell with radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822122144.0U CN209029364U (en) | 2018-12-18 | 2018-12-18 | A kind of power module shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822122144.0U CN209029364U (en) | 2018-12-18 | 2018-12-18 | A kind of power module shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209029364U true CN209029364U (en) | 2019-06-25 |
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ID=66910988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822122144.0U Active CN209029364U (en) | 2018-12-18 | 2018-12-18 | A kind of power module shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209029364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112243323A (en) * | 2020-08-27 | 2021-01-19 | 湖南国芯半导体科技有限公司 | Power module shell and power module with same |
| US11756858B2 (en) | 2020-01-05 | 2023-09-12 | Industrial Technology Research Institute | Power module with housing having bending sections |
-
2018
- 2018-12-18 CN CN201822122144.0U patent/CN209029364U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11756858B2 (en) | 2020-01-05 | 2023-09-12 | Industrial Technology Research Institute | Power module with housing having bending sections |
| CN112243323A (en) * | 2020-08-27 | 2021-01-19 | 湖南国芯半导体科技有限公司 | Power module shell and power module with same |
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