CN110797317B - Weight-reduction-designed valve stack radiating cushion block and power electronic valve stack - Google Patents
Weight-reduction-designed valve stack radiating cushion block and power electronic valve stack Download PDFInfo
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- CN110797317B CN110797317B CN201810862078.2A CN201810862078A CN110797317B CN 110797317 B CN110797317 B CN 110797317B CN 201810862078 A CN201810862078 A CN 201810862078A CN 110797317 B CN110797317 B CN 110797317B
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- cushion block
- valve stack
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3736—Metallic materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3733—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon having a heterogeneous or anisotropic structure, e.g. powder or fibres in a matrix, wire mesh, porous structures
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to a series-connection compression joint type valve stack radiating cushion block for power electronic equipment, which is made of a metal material, and lightening holes are arranged in the middle of the radiating cushion block. The invention also provides a power electronic valve stack with a series structure, which comprises a power electronic device and the valve stack radiating cushion block with the weight reduction design, wherein the valve stack radiating cushion block and the power electronic device are connected in series and arranged alternately. The invention can meet the requirements of passing large current and lightening the weight of the valve string, and is particularly suitable for a power electronic valve stack consisting of a plurality of series structures.
Description
Technical Field
This patent belongs to the power electronics field, concretely relates to radiating cushion and series structure's power electronic valve heap.
Background
With the rapid development of the flexible direct current transmission technology, various types of valve stack structures are widely applied, wherein a valve stack formed by directly connecting a plurality of power electronic devices, such as an Insulated Gate Bipolar Transistor (IGBT), a thyristor, a diode and the like, with a radiating cushion block in series is a technical difficulty, particularly when the number of series connection stages is large and the weight of a valve string is large.
The valve string of traditional series connection structure, its radiator cushion is mostly solid construction, and weight is big, and when series connection progression is more, the valve string produces upset moment under the action of gravity, and the existence of upset moment makes the series connection progression of valve heap difficult further to improve. The reason is that the overturning moment is gradually increased along with the increase of the crimping grade number of the valve stack, so that the structural stability of the valve stack is influenced on one hand; on the other hand, the existence of the overturning moment enables all the series structures to be stressed unevenly, and further influences the flow capacity of the valve stack.
Based on the above needs, the present disclosure has been made.
Disclosure of Invention
The purpose of the patent is to provide a radiating cushion block to solve the problem of heavy weight of the radiating cushion block; the utility model provides an use power electronic valve of series structure of this radiating cushion piece piles simultaneously, solves along with the increase of valve pile crimping progression, upset moment crescent and structural stability is poor, the not good problem of discharge capacity.
In order to achieve the above purpose, the solution of the patent is: the utility model provides a valve stack cooling pad of subtract heavy design, cooling pad is metal material, the lightening hole has been arranged in cooling pad's centre.
Furthermore, the axial direction of the lightening holes is perpendicular to the stress direction of the radiating cushion block.
Furthermore, the axial direction of the lightening holes is vertical to the current direction of the valve stack, the front and rear stress surfaces of the valve stack radiating cushion block are composed of a whole flow guide bottom plate, and flow guide ribs are arranged between the flow guide plates
Furthermore, the lightening holes are in the structural form of round holes, square holes or elliptical holes.
Further, the lightening holes are obtained by means of pultrusion or machining.
Furthermore, the lightening holes are distributed in an array.
The invention further provides a power electronic valve stack with a series structure, which comprises a power electronic device and the valve stack radiating cushion block with the weight reduction design, wherein the valve stack radiating cushion block and the power electronic device are connected in series and arranged alternately.
The machining process of the valve stack radiating cushion block with the weight reduction design comprises the following steps:
(1) the weight-reducing holes perpendicular to the current flow direction are arranged on the base material of the radiating cushion block material, so that the weight of the radiating cushion block is effectively reduced;
(2) the lightening holes are distributed in an array manner, and walls formed among the holes form pressing force and current channels;
(3) the arranged lightening holes can be obtained by pultrusion of profiles and machining;
after adopting the scheme, the invention has the following characteristics:
(1) the weight of a single cushion block is obviously reduced, so that the overall weight of the valve string is reduced;
(2) the structural stability of the valve string is obviously reduced, and the structural stability and the anti-seismic performance of the valve are further improved;
(3) the weight of the cushion block is reduced, and the material cost is reduced.
Drawings
FIG. 1 is a diagram of a valve stack comprising the heat dissipating spacer having lightening holes according to the present invention and an electronic device;
FIG. 2 is an embodiment of a heat sink circular hole configuration of a weight reduction design according to the present invention;
FIG. 3 is an embodiment of a square lightening hole according to the invention;
wherein: 1-a heat dissipation cushion block; 2-press mounting of the device; and 3-lightening holes.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings.
FIG. 1 is a diagram of a valve stack comprising the heat dissipating spacer having lightening holes according to the present invention and an electronic device; fig. 2 shows an embodiment of the round hole structure of the heat dissipating cushion block with a weight reduction design according to the present invention. Wherein 1 is a radiating cushion block; 2, a pressed device; and 3, a lightening hole.
The radiating cushion block is made of metal materials, and lightening holes are arranged in the middle of the radiating cushion block.
And the axial direction of the lightening holes is vertical to the stress direction of the radiating cushion block.
The axial direction of the lightening hole is vertical to the current direction of the valve stack, the front and rear stress surfaces of the valve stack radiating cushion block are composed of a whole diversion bottom plate, and diversion ribs are arranged between the diversion plates
The structure form of the lightening hole is a round hole, a square hole or an elliptical hole.
The lightening holes are obtained by pultrusion of profiles or machining.
The lightening holes are distributed in an array.
The invention further provides a power electronic valve stack with a series structure, which comprises a power electronic device and the valve stack radiating cushion block with the weight reduction design, wherein the valve stack radiating cushion block and the power electronic device are connected in series and arranged alternately.
The machining process of the valve stack radiating cushion block with the weight reduction design comprises the following steps:
(1) the weight-reducing holes perpendicular to the current flow direction are arranged on the base material of the radiating cushion block material, so that the weight of the radiating cushion block is effectively reduced;
(2) the lightening holes are distributed in an array manner, and walls formed among the holes form pressing force and current channels;
(3) the arranged lightening holes can be obtained by pultrusion of profiles and machining;
in particular, the weight-reducing design of the radiating cushion block described in the invention can be in a round type, a square type and the like, and fig. 3 shows an embodiment of a square-shaped weight-reducing hole of the invention.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (6)
1. The valve stack radiating cushion block is characterized in that a plurality of lightening holes are arranged in the middle of the radiating cushion block, the axial direction of each lightening hole is perpendicular to the stress direction of the radiating cushion block, the axial direction of each lightening hole is perpendicular to the current direction of the valve stack, and walls formed among the lightening holes form pressing force and current channels.
2. The valve stack cooling block of a weight reduction design of claim 1, wherein the front and rear stress surfaces of the valve stack cooling block are formed by a single flow guiding bottom plate, and flow guiding ribs are arranged between the flow guiding plates.
3. The stack insert according to claim 1, wherein the lightening holes are in the form of round, square or oval holes.
4. A weight-reducing design of the stack of spacers as claimed in claim 1, wherein the weight-reducing holes are obtained by means of pultruded profiles or machining.
5. The stack insert of claim 1, wherein the lightening holes are arranged in an array.
6. A power electronic valve stack with a series structure, which is characterized by comprising a power electronic device and a valve stack radiating cushion block with a weight reduction design according to any one of claims 1 to 5, wherein the valve stack radiating cushion block and the power electronic device are arranged in series at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810862078.2A CN110797317B (en) | 2018-08-01 | 2018-08-01 | Weight-reduction-designed valve stack radiating cushion block and power electronic valve stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810862078.2A CN110797317B (en) | 2018-08-01 | 2018-08-01 | Weight-reduction-designed valve stack radiating cushion block and power electronic valve stack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110797317A CN110797317A (en) | 2020-02-14 |
| CN110797317B true CN110797317B (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810862078.2A Active CN110797317B (en) | 2018-08-01 | 2018-08-01 | Weight-reduction-designed valve stack radiating cushion block and power electronic valve stack |
Country Status (1)
| Country | Link |
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| CN (1) | CN110797317B (en) |
Citations (6)
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| CN101188228A (en) * | 2007-12-19 | 2008-05-28 | 中国电力科学研究院 | Transistor tube valve with force top pressing structure |
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| CN206806387U (en) * | 2017-04-12 | 2017-12-26 | 迪斯达新能源（上海）有限公司 | A kind of power battery module end plate |
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| CN2274332Y (en) * | 1995-11-23 | 1998-02-11 | 王志远 | Hot-pipe radiator |
| CN2847527Y (en) * | 2005-07-07 | 2006-12-13 | 郭璟霖 | Heat radiation fin |
| CN201670196U (en) * | 2010-05-26 | 2010-12-15 | 余强 | Anti-theft device for automobile anti-theft system |
| CN202067470U (en) * | 2011-05-09 | 2011-12-07 | 邓艳阳 | Light-emitting diode (LED) display screen |
| CN202854452U (en) * | 2012-10-22 | 2013-04-03 | 三星电子株式会社 | Display screen assembly and portable terminal applying the same |
| CN103322541A (en) * | 2013-06-28 | 2013-09-25 | 华南理工大学 | Integrated radiator based on foamy copper and micro-channel, and manufacturing method thereof |
| CN106763331A (en) * | 2015-11-23 | 2017-05-31 | 攀枝花学院 | Brake drum with louvre |
| CN105827157A (en) * | 2016-05-25 | 2016-08-03 | 东屋电气（天津）有限公司 | Dedicated thyristor module for soft starters |
| CN107958887B (en) * | 2017-11-28 | 2019-01-18 | 中国西电电气股份有限公司 | A kind of crimping structure of multistage Thyristors in series |
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2018
- 2018-08-01 CN CN201810862078.2A patent/CN110797317B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188228A (en) * | 2007-12-19 | 2008-05-28 | 中国电力科学研究院 | Transistor tube valve with force top pressing structure |
| JP2010185674A (en) * | 2009-02-10 | 2010-08-26 | Yokogawa Electric Corp | Test head |
| CN202888245U (en) * | 2012-10-22 | 2013-04-17 | 厦门乾球光电科技有限公司 | High-power LED (Light Emitting Diode) heat sink |
| CN104009241A (en) * | 2014-04-29 | 2014-08-27 | 南京双登科技发展研究院有限公司 | Bipolar plate for enhancing heat dissipation of fuel cell stack |
| CN107146905A (en) * | 2017-01-10 | 2017-09-08 | 东莞市中航华讯卫星技术有限公司 | A kind of integrated fuel battery |
| CN206806387U (en) * | 2017-04-12 | 2017-12-26 | 迪斯达新能源（上海）有限公司 | A kind of power battery module end plate |
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| Publication number | Publication date |
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| CN110797317A (en) | 2020-02-14 |
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