CN104582247A - Variable frequency control panel - Google Patents
Variable frequency control panel Download PDFInfo
- Publication number
- CN104582247A CN104582247A CN201410708545.8A CN201410708545A CN104582247A CN 104582247 A CN104582247 A CN 104582247A CN 201410708545 A CN201410708545 A CN 201410708545A CN 104582247 A CN104582247 A CN 104582247A
- Authority
- CN
- China
- Prior art keywords
- variable frequency
- frequency control
- wire jumper
- circuit board
- control plate
- 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.)
- Granted
Links
- 238000003466 welding Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 3
- 238000003475 lamination Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005234 chemical deposition Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0209—External configuration of printed circuit board adapted for heat dissipation, e.g. lay-out of conductors, coatings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/06—Thermal details
- H05K2201/066—Heatsink mounted on the surface of the printed circuit board [PCB]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10363—Jumpers, i.e. non-printed cross-over connections
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inverter Devices (AREA)
- Structure Of Printed Boards (AREA)
Abstract
The invention relates to a variable frequency control panel. Specifically, the invention provides a variable frequency control panel for a variable frequency refrigerator. The variable frequency control panel comprises a printed circuit board, a plurality of power devices heating during working and at least one jumper wire, wherein a plurality of via holes penetrating through the printed circuit board are formed in the printed circuit board; the power devices are mounted on the back surface of the printed circuit board; two ends of each jumper wire are respectively welded on the front surface of the printed circuit board and respectively cover the via holes, and each jumper wire crosses two transverse sides or two longitudinal sides of the corresponding power device; the surface area of each jumper wire is a preset multiple of the area of the lamination surface of the corresponding power device. According to the variable frequency control panel provided by the invention, due to the adoption of the jumper wire for heat dissipation, the heat dissipation area of the variable frequency control panel is significantly improved, the heat dissipation efficiency of the variable frequency control panel is improved, and the area of the panel surface of the variable frequency control panel is saved, so that the variable frequency control panel is conductive to reducing the size of the panel surface, reducing manufacturing cost and ensuring the service life of the variable frequency control panel.
Description
Technical field
The present invention relates to the field of radiating of circuit board, particularly relate to a kind of variable frequency control plate.
Background technology
Circuit board is important electronic unit, is the supporter of electronic component, is the supplier of electronic devices and components connection.Nearly all electronic product all comprises circuit board, and along with the integrated level of circuit board is more and more higher, the components and parts on circuit board are arranged also more and more intensive, and area of dissipation is not enough, especially more easily exceeds standard in the components and parts environment temperature of height heating.Such as, for the variable frequency control plate with circuit board, the power device IGBT of variable frequency control plate in use distributes amount of heat, needs to reduce device temperature and ensures variable frequency control plate quality and life-span.But existing variable frequency control plate IGBT heat sink conception, is all amass by strengthening variable frequency control plate PCB surface, or adopts the IGBT of large package dimension to dispel the heat.Along with the trend toward miniaturization development of variable frequency control plate, large scale pcb board, large package dimension IGBT cannot adapt to current to the thinner lighter trend of electronic product requirement, urgently improve.In addition, the area of the printed circuit board (PCB) of variable frequency control plate is larger, and cost is higher.
Summary of the invention
One object of the present invention is intended at least one defect overcoming existing variable frequency control plate, provides a kind of variable frequency control plate of novelty.This variable frequency control plate, compared to existing variable frequency control plate, saves plate face area, is conducive to reducing plate face size, cost-saving; Especially, significantly increase area of dissipation, improve radiating efficiency.
To achieve these goals, the invention provides a kind of variable frequency control plate for frequency conversion refrigerator, it comprises: printed circuit board (PCB), it is formed with multiple via hole running through described printed circuit board (PCB);
The power device generated heat during multiple work, is arranged on the back side of described printed circuit board (PCB); With
At least one wire jumper, the two ends of each described wire jumper are welded in the front of described printed circuit board (PCB) respectively and cover multiple described via hole respectively, and each described wire jumper is cross-placed on the both lateral sides of a corresponding described power device or longitudinal both sides, be passed to corresponding described wire jumper with the via hole making at least part of heat produced during corresponding described power device work cover via corresponding described wire jumper; And the surface area of each described wire jumper is the preset multiple pasting the area on surface of corresponding described power device.
Alternatively, the span of described preset multiple is 1/4 to 9/10.
Alternatively, each described wire jumper comprises:
Two end pin segments, the front that the two ends of each described wire jumper are welded in described printed circuit board (PCB) is respectively that the front being welded in described printed circuit board (PCB) respectively by two end pin segments of each described wire jumper realizes; With
Bridging section, connects two described end pin segments, and arches upward to the direction away from described printed circuit board (PCB).
Alternatively, each via hole of the covering of each described end pin segment is interconnected to form welding zone, to weld corresponding described end pin segment with the pad of each via hole closing on each described end pin segment.
Alternatively, the pad of each via hole of the covering of each described end pin segment is interconnected to form welding zone, to weld corresponding described end pin segment.
Alternatively, the width of each described wire jumper is at more than 6mm.
Alternatively, the two ends of each described wire jumper cover at least 15 described via holes respectively.
Alternatively, the diameter of each described via hole is at below 1mm.
Alternatively, each described power device is insulated gate bipolar transistor.
Alternatively, the quantity of described multiple power device is equal with the quantity of at least one wire jumper described; And the quantity of described multiple power device is 2 to 6.
Variable frequency control plate of the present invention is because adopt wire jumper heat radiation, considerably improve the area of dissipation of variable frequency control plate, improve the radiating efficiency of variable frequency control plate, to save the plate face area of variable frequency control plate, be conducive to reducing plate face size, save the useful life of manufacturing cost and guarantee variable frequency control plate.
Further, the surface area of the wire jumper of variable frequency control plate of the present invention can be determined according to the area pasting surface of corresponding power device, reaches optimum to make the radiating effect of wire jumper.
Further, because in variable frequency control plate of the present invention, the bridging section of each wire jumper arches upward to the direction away from printed circuit board (PCB), while its area of dissipation of increase, make its compact conformation.
Further, variable frequency control plate of the present invention can adopt multiple small package IGBT device, reduces the plate face size of variable frequency control plate, variable frequency control plate is realized miniaturized.
According to hereafter by reference to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present invention more.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present invention with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the schematic cross sectional views of variable frequency control plate according to an embodiment of the invention;
Fig. 2 is the schematic diagram of variable frequency control plate according to an embodiment of the invention.
Embodiment
Fig. 1 is the schematic cross sectional views of variable frequency control plate according to an embodiment of the invention.Embodiments provide a kind of variable frequency control plate for frequency conversion refrigerator, it has less plate face size and outstanding heat-sinking capability.Particularly, the power device 20 generated heat when this variable frequency control plate can comprise printed circuit board (PCB) 10, multiple work and at least one wire jumper 30.Printed circuit board (PCB) 10 can be formed with multiple via hole 11 running through printed circuit board (PCB) 10.The power device 20 generated heat during multiple work can be arranged on the back side of printed circuit board (PCB) 10.The two ends of each wire jumper 30 are welded in the front of printed circuit board (PCB) 10 respectively and cover multiple via hole 11 respectively, and each wire jumper 30 is cross-placed on the both lateral sides of a corresponding power device 20 or longitudinal both sides, the via hole 11 that at least part of heat produced when working to make corresponding power device 20 covers via respective patch cord 30 is passed to respective patch cord 30.Especially, the surface area of each wire jumper 30 is the preset multiple pasting the area on surface of corresponding power device 20, to make the surface area of wire jumper can determine according to the area pasting surface of corresponding power device, reaches optimum to make the radiating effect of wire jumper.
As is known to persons skilled in the art, via hole 11 also claims plated-through hole, and the hole wall face of cylinder of via hole 11 plates layer of metal by the method for chemical deposition.The via hole 11 that at least part of heat that power device 20 produces in the process of work can cover via respective patch cord 30 is passed to the wire jumper 30 in printed circuit board (PCB) 10 front, wire jumper 30 has larger area of dissipation, the heat that corresponding power device 20 can be produced promptly leads in air, considerably improve the radiating efficiency of variable frequency control plate, to save the plate face area of variable frequency control plate, be conducive to reducing plate face size, save the useful life of manufacturing cost and guarantee variable frequency control plate.
In some embodiments of the invention, the surface area of each wire jumper 30 is the preset multiple pasting the area on surface of corresponding power device 20, the span of this preset multiple can be 1/4 to 9/10, the such as surface area of each wire jumper 30 be corresponding power device 20 paste 1/4,1/3 or 1/2 etc. of the area on surface.The width of each wire jumper 30, at more than 6mm, to make wire jumper 30 wider, thus improves heat exchange efficiency.Such as, the width of each wire jumper 30 can be set to 9mm, and the length of each wire jumper 30 can be 36mm.In other embodiment more of the present invention, what the surface area of each wire jumper 30 was more than or equal to corresponding power device 20 pastes 1/4 of the area on surface; What the such as surface area of each wire jumper 30 was more than or equal to corresponding power device 20 pastes 1 times, 1.5 times of area of surface or 2 times etc.
In some embodiments of the invention, each wire jumper 30 can comprise two end pin segments 31 and bridging section 32.Two end pin segments 31 are welded in the front of printed circuit board (PCB) 10 respectively, that is, the two ends of each wire jumper 30 are welded in the front of printed circuit board (PCB) 10 is respectively be welded in the front realization of printed circuit board (PCB) 10 respectively by two end pin segments 31 of each wire jumper 30.Bridging section 32 connects two end pin segments 31, and arches upward to the direction away from printed circuit board (PCB) 10, to make its compact conformation while increase variable frequency control plate area of dissipation.
For the ease of the welding of each wire jumper 30, each via hole 11 of the covering of each end pin segment 31 is interconnected to form welding zone, to weld respective end pin segment 31 with the pad of each via hole 11 closing on each end pin segment 31.The pad of each via hole 11 is connected also to further increase and the heat that corresponding power device 20 produces is passed to efficiency in respective patch cord 30.In alternate embodiment more of the present invention, the pad of each via hole 11 of the covering of each end pin segment 31 is interconnected to form welding zone, to weld respective end pin segment 31.
In some embodiments of the invention, the two ends of each wire jumper 30 cover at least 15 via holes 11 respectively.Such as, multiple via holes 11 of end pin segment 31 covering of each wire jumper 30 can be arranged as 3 rows 5 approx and arrange, and also can be set to 3 rows 7 and arrange.The diameter of each via hole 11 can at below 1mm.
Fig. 2 is the schematic diagram of variable frequency control plate according to an embodiment of the invention, and the back side being arranged on printed circuit board (PCB) 10 due to each power device in figure is blocked, therefore each power device represented by dashed line.As shown in Figure 2, each power device 20 on the variable frequency control plate of the embodiment of the present invention is insulated gate bipolar transistor.Insulated gate is double-clicked transistor npn npn and also be can be described as IGBT (Insulated Gate BipolarTransistor) device.Such as, multiple power device 20 can be multiple small package IGBT device, reduces the plate face size of variable frequency control plate, variable frequency control plate is realized miniaturized.The quantity of multiple power device 20 is equal with the quantity of at least one wire jumper 30.The quantity of multiple power device 20 can be 2 to 6.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present invention is illustrate and described herein detailed, but, without departing from the spirit and scope of the present invention, still can directly determine or derive other modification many or amendment of meeting the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or amendments.
Claims (10)
1., for a variable frequency control plate for frequency conversion refrigerator, comprising:
Printed circuit board (PCB), it is formed with multiple via hole running through described printed circuit board (PCB);
The power device generated heat during multiple work, is arranged on the back side of described printed circuit board (PCB); With
At least one wire jumper, the two ends of each described wire jumper are welded in the front of described printed circuit board (PCB) respectively and cover multiple described via hole respectively, and each described wire jumper is cross-placed on the both lateral sides of a corresponding described power device or longitudinal both sides, be passed to corresponding described wire jumper with the via hole making at least part of heat produced during corresponding described power device work cover via corresponding described wire jumper; And the surface area of each described wire jumper is the preset multiple pasting the area on surface of corresponding described power device.
2. variable frequency control plate according to claim 1, wherein
The span of described preset multiple is 1/4 to 9/10.
3. variable frequency control plate according to claim 1, wherein, each described wire jumper comprises:
Two end pin segments, the front that the two ends of each described wire jumper are welded in described printed circuit board (PCB) is respectively that the front being welded in described printed circuit board (PCB) respectively by two end pin segments of each described wire jumper realizes; With
Bridging section, connects two described end pin segments, and arches upward to the direction away from described printed circuit board (PCB).
4. variable frequency control plate according to claim 3, wherein
Each via hole of the covering of each described end pin segment is interconnected to form welding zone, to weld corresponding described end pin segment with the pad of each via hole closing on each described end pin segment.
5. variable frequency control plate according to claim 3, wherein
The pad of each via hole of the covering of each described end pin segment is interconnected to form welding zone, to weld corresponding described end pin segment.
6. variable frequency control plate according to claim 1, wherein
The width of each described wire jumper is at more than 6mm.
7. variable frequency control plate according to claim 1, wherein
The two ends of each described wire jumper cover at least 15 described via holes respectively.
8. variable frequency control plate according to claim 1, wherein
The diameter of each described via hole is at below 1mm.
9. variable frequency control plate according to claim 1, wherein
Each described power device is insulated gate bipolar transistor.
10. variable frequency control plate according to claim 8, wherein
The quantity of described multiple power device is equal with the quantity of at least one wire jumper described; And
The quantity of described multiple power device is 2 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708545.8A CN104582247B (en) | 2014-11-27 | 2014-11-27 | VFC plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708545.8A CN104582247B (en) | 2014-11-27 | 2014-11-27 | VFC plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104582247A true CN104582247A (en) | 2015-04-29 |
| CN104582247B CN104582247B (en) | 2018-02-02 |
Family
ID=53097148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410708545.8A Active CN104582247B (en) | 2014-11-27 | 2014-11-27 | VFC plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104582247B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112584666A (en) * | 2019-09-30 | 2021-03-30 | 安徽美芝制冷设备有限公司 | Variable frequency control box assembly, refrigerating system and refrigerator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10200221A (en) * | 1997-01-09 | 1998-07-31 | Toshiba Corp | Printed board for large current |
| CN203482490U (en) * | 2013-08-28 | 2014-03-12 | 深圳市广大电子有限公司 | Printed circuit board (PCB) |
| CN204305453U (en) * | 2014-11-27 | 2015-04-29 | 青岛海尔股份有限公司 | VFC plate |
-
2014
- 2014-11-27 CN CN201410708545.8A patent/CN104582247B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10200221A (en) * | 1997-01-09 | 1998-07-31 | Toshiba Corp | Printed board for large current |
| CN203482490U (en) * | 2013-08-28 | 2014-03-12 | 深圳市广大电子有限公司 | Printed circuit board (PCB) |
| CN204305453U (en) * | 2014-11-27 | 2015-04-29 | 青岛海尔股份有限公司 | VFC plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112584666A (en) * | 2019-09-30 | 2021-03-30 | 安徽美芝制冷设备有限公司 | Variable frequency control box assembly, refrigerating system and refrigerator |
| CN112584666B (en) * | 2019-09-30 | 2024-04-12 | 安徽美芝制冷设备有限公司 | Variable frequency control box assembly, refrigerating system and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104582247B (en) | 2018-02-02 |
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