CN108387803A - A kind of electronic load test device - Google Patents
A kind of electronic load test device Download PDFInfo
- Publication number
- CN108387803A CN108387803A CN201810382993.1A CN201810382993A CN108387803A CN 108387803 A CN108387803 A CN 108387803A CN 201810382993 A CN201810382993 A CN 201810382993A CN 108387803 A CN108387803 A CN 108387803A
- Authority
- CN
- China
- Prior art keywords
- radiator
- power
- electronic load
- load test
- pin
- 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
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 31
- 239000010439 graphite Substances 0.000 claims abstract description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 2
- 206010037660 Pyrexia Diseases 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention provides a kind of electronic load test device, including shell and one or more power modules, one or more electrical isolation guide rails disposed in parallel, power modules are electrically insulated setting inside the shell by being electrically insulated guide rail draw and insert-type with shell, the power modules include pcb board, power device, graphite flake and radiator, the negative electrode being set as on the radiator and pcb board of positive electrode is respectively connected to the test input of electronic load test device, power device and graphite flake are jointly mounted on radiator, the negative terminal of power device is electrically connected to the pcb board, the anode of power device is electrically connected by the graphite flake with the radiator；It realizes that electrical connection improves power density and reduces fever and improve to radiate and reduce radiator volume；There is preferable face stickiness to improve electric conductivity simultaneously, power tube can be electrically connected with the abundant large area of radiator, remove the welding of a pin from, heavy in section radiator is used to reduce conventional lead fever and complete machine fever as lead.
Description
Technical field
The present invention relates to a kind of electronic load test device, more particularly to a kind of high heat conduction, highly conductive and easy extension
Electronic load test device.
Background technology
Electronic load test device is generally used for absorbing the power of power supply when power supply product test, in addition to DC power supply, packet
Including DC-DC adapters, lithium battery, fuel cell and solar panels etc. can all use to electronic load test device.
Currently, as the continuous of electronic product power to be measured is risen, the volume of electronic load test device continues to increase, no
Easy extended channel has tied up limited lab space；Main cause is that the power device of electronic load test device needs height
Efficiency radiates, and radiator and conductive filler material affect radiating efficiency, and silicon is generally used in existing electronic load device
The Heat Conduction Materials such as film, since the larger radiator volume larger there are still needs of thermal resistance could realize asking for identical power
Topic, there are also electronic equipments to use the preferable heat conductive silicon grease material of heat conduction, but it is high, easy to pollute etc. there is also coating requirement
Problem.
Invention content
The object of the present invention is to provide a kind of electronic load test devices, solve existing electronic load test device structure cloth
Office is unreasonable, and power modules extension is not convenient, cannot effectively reduce lead and radiator fever and the bad problem of heat dissipation performance.
To achieve the goals above, the technical solution of the present invention is to provide a kind of electronic load test devices, including shell
And one or more power modules, further comprise one or more electrical isolation guide rails disposed in parallel, power modules pass through
Electrical isolation guide rail draw and insert-type is electrically insulated setting with shell inside the shell, and the power modules include pcb board, power device, graphite
Piece and radiator, the negative electrode being set as on the radiator and pcb board of positive electrode are respectively connected to the test of electronic load test device
Input terminal, power device and graphite flake are jointly mounted on radiator, and the negative terminal of power device is electrically connected to the pcb board, work(
The anode of rate device is electrically connected by the graphite flake with the radiator.
Power device is power tube, and the poles S pin, the poles the G pin of power tube pin are respectively welded on pcb board, the poles D pin
Hanging or cutting, and the radiating end on the pin of the poles D fastens thermo-contact with radiator by graphite flake and is electrically connected.
Power device is one or more, is provided between radiating end and radiator that each power device pin is equipped with
The radiating end and radiator that piece of graphite piece carries out fastening thermo-contact and electrical connection or multiple power device pins are equipped with it
Between share piece of graphite piece and carry out fastening thermo-contact and electrical connection.
Further include connecting plate and master board, main control plate control signal is realized by connecting plate and controlled power modules.
Radiator is set as strip, and one end is provided with fan, and fan is controlled by master board and is electrically insulated in radiator.
The beneficial effects of the invention are as follows：The poles the power device D pin radiating end sheet metal of power tube is used in power modules
Use graphite flake heat conduction, graphite flake that there is excellent thermal conductivity, thermal conduction characteristic to be better than general Heat Conduction Material, have between radiator
Power density is improved conducive to electrical connection, fever is effectively reduced and improves and radiate and reduce radiator volume；Simultaneously graphite flake have compared with
Good face stickiness improves electric conductivity, can be electrically connected power tube with the abundant large area of radiator, can also while reducing fever
The welding for removing a pin from uses heavy in section radiator to reduce conventional lead fever and complete machine heating problem as lead.
Description of the drawings
Fig. 1 is that schematic diagram is arranged in the insulating guide rail of electronic load test device embodiment of the present invention；
Fig. 2 is the power modules structural schematic diagram of electronic load test device of the present invention；
Wherein：1- shells, 2- electrical isolation guide rails, 3- power modules, 4- fans, 5- radiators, 6- power devices, 7- graphite flakes,
8-PCB plates.
Specific implementation mode
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment is as depicted in figs. 1 and 2, and the present embodiment provides a kind of electronic load test devices, including shell 1, connection
Plate, three electrical isolation guide rails 2, power modules 3 and a master boards, master board are realized by connecting plate to power modules control
System and extraneous test equipment, a power modules 3 pull and push mode and be electrically insulated to be arranged with shell 1 by an electrical isolation guide rail 2 to exist
In shell 1, remaining two electrical isolation guide rail 2 extend it is spare, the power modules 3 include pcb board 8, multiple power devices 6 and dissipate
The radiating end of hot device 5, multiple power devices 6 is all jointly mounted on radiator 5, and the radiating end on 6 pin of power device is
The test input that anode is connected to electronic load test device by radiator 5 is electrically connected with Devices to test again, power device 6
Other pins control signal by pcb board 8 and are electrically connected with master board, and the negative terminal on pcb board 8 is connected to electronic load test device
Test input be electrically connected again with Devices to test, the positive and negative terminal of power modules 3 is connected to Devices to test by connection electrode.
It is tight that piece of graphite piece 7 is shared between the radiating end and radiator 5 of 6 pin of multiple power devices in power modules 3
Gu thermo-contact and electrical connection.
The present embodiment power device 6 uses power tube, the poles the S pin pole of power tube, the poles G pin to be welded on pcb board, D
Radiating end on the pin of pole fastens thermo-contact with radiator 5 and is electrically connected.
Radiator 5 is set as strip, and one end is provided with fan 4, and fan 4 is controlled by master board and in 5 electricity of radiator
Insulation.
The present embodiment pcb board 8 connects negative electrode, and the radiator 5 connects positive electrode.
Use 7 heat conduction of graphite flake, graphite flake 7 that there is excellent lead between the present embodiment power tube D pole sheet metals and radiator
Hot, thermal conduction characteristic is better than general Heat Conduction Material, is conducive to improve power density, reduces volume.
Following table is the contrast table of three kinds of Heat Conduction Materials：
The present embodiment graphite flake has preferable electric conductivity simultaneously, and power tube and radiator gross area fully can be electrically connected,
The welding that a pin can also be removed from, simplifies production technology.
Compared with prior art, the present embodiment electronic load device leads the insulation between original power tube and radiator 5
Backing be changed to thermal resistance it is minimum and with conductive characteristic graphite flake 7, in this way can identical temperature rise lower band load bigger power,
Simultaneously because the D of power tube is extremely directly electrically connected the welding for also eliminating pin by graphite flake with radiator 5, it is conducive to carry in this way
The power density of high electronic load and simplified technique.
Electronic load includes the power modules 3 in shell 1 and shell, and power modules 3 can be pushed by the guide rail 2 that is electrically insulated
Or shell 1 is removed, it is isolated to ensure that power modules 3 and the shell 1 of electronic load are exhausted using the electrical isolation guide rail 2 of insulating materials
Edge is shown in Fig. 1.
Graphite flake 7 is laid between power device 6 and radiator 5, and power device 6 is fixed on heat dissipation by trip bolt
On device 5, Fig. 2 is seen；
The poles the D pin of power tube, which can also can vacantly be cut, not to be had to, but uses the poles the D sheet metal at the power tube back side as just
The poles the D sheet metal of pole, the power tube back side is thermally contacted with graphite flake, and graphite flake is thermally contacted with radiator, and radiator 5 is as lead
A part.On the one hand it is used to export high current, on the one hand need not weld, on the one hand be thermally contacted with radiator 5 by graphite flake,
Enhancing heat dissipation, reduces the operating temperature of power modules, to improve electronic load power density.The poles the S pin of power tube and the poles G
Pin is welded on pcb board 8.
Further, graphite flake 7 be preferably an elongate in shape, can thermally contact thereon there are one or multiple power tubes, be
It is prepared convenient for technique, preferably thermo-contact has multiple power tubes on same graphite flake 7.
Claims (5)
1. a kind of electronic load test device, including shell and one or more power modules, it is characterised in that：It further include one
Or multiple electrical isolation guide rails disposed in parallel, power modules, which are electrically insulated by the guide rail draw and insert-type that is electrically insulated with shell, to be arranged in shell
Interior, the power modules include pcb board, power device, graphite flake and radiator, are set as on the radiator and pcb board of positive electrode
Negative electrode be respectively connected to the test input of electronic load test device, power device and graphite flake are jointly mounted to radiator
On, the negative terminal of power device is electrically connected to the pcb board, and the anode of power device passes through the graphite flake and radiator electricity
Connection.
2. a kind of electronic load test device according to claim 1, it is characterised in that：Power device is power tube, work(
The poles S pin, the poles the G pin of rate pipe pin are respectively welded on pcb board, and the poles D pin is hanging or cuts, and dissipating on the pin of the poles D
Hot junction fastens thermo-contact with radiator by graphite flake and is electrically connected.
3. a kind of electronic load test device according to claim 1 or 2, it is characterised in that：Power device be one or
It is multiple, it is provided with piece of graphite piece between radiating end and radiator that each power device pin is equipped with and carries out fastening and thermally contact
Piece of graphite piece is shared between electrical connection or multiple power device pins radiating end and radiator that are equipped with to be fastened
Thermo-contact and electrical connection.
4. a kind of electronic load test device according to claim 1, it is characterised in that：Further include connecting plate and main control
Plate, main control plate control signal are realized by connecting plate and are controlled power modules.
5. a kind of electronic load test device according to claim 4, it is characterised in that：Radiator is set as strip,
One end is provided with fan, and fan is controlled by master board and is electrically insulated in radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810382993.1A CN108387803B (en) | 2018-04-26 | 2018-04-26 | Electronic load testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810382993.1A CN108387803B (en) | 2018-04-26 | 2018-04-26 | Electronic load testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108387803A true CN108387803A (en) | 2018-08-10 |
| CN108387803B CN108387803B (en) | 2024-08-27 |
Family
ID=63066010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810382993.1A Active CN108387803B (en) | 2018-04-26 | 2018-04-26 | Electronic load testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108387803B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830384A (en) * | 2019-04-12 | 2020-10-27 | 博计电子股份有限公司 | Low-pressure drop electronic load connecting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201417283Y (en) * | 2009-06-01 | 2010-03-03 | 中茂电子(深圳)有限公司 | Electronic load array with positioning guide rail |
| US20120014069A1 (en) * | 2010-07-15 | 2012-01-19 | Jian-Hong Zeng | Power module |
| CN103681523A (en) * | 2012-09-05 | 2014-03-26 | 深圳市艾威迅科技有限公司 | Mounting structure for power tube of sealed power supply product with integral heat radiating function |
| CN105334407A (en) * | 2014-08-12 | 2016-02-17 | 致茂电子(苏州)有限公司 | Electronic load testing device |
| CN206210990U (en) * | 2016-11-16 | 2017-05-31 | 惠州市德赛电池有限公司 | A kind of battery of mobile phone protection board |
| CN107484394A (en) * | 2017-09-12 | 2017-12-15 | 广州市天歌音响设备有限公司 | A kind of power amplifier |
| CN208060644U (en) * | 2018-04-26 | 2018-11-06 | 艾乐德电子（南京）有限公司 | A kind of electronic load test device |
-
2018
- 2018-04-26 CN CN201810382993.1A patent/CN108387803B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201417283Y (en) * | 2009-06-01 | 2010-03-03 | 中茂电子(深圳)有限公司 | Electronic load array with positioning guide rail |
| US20120014069A1 (en) * | 2010-07-15 | 2012-01-19 | Jian-Hong Zeng | Power module |
| CN103681523A (en) * | 2012-09-05 | 2014-03-26 | 深圳市艾威迅科技有限公司 | Mounting structure for power tube of sealed power supply product with integral heat radiating function |
| CN105334407A (en) * | 2014-08-12 | 2016-02-17 | 致茂电子(苏州)有限公司 | Electronic load testing device |
| CN206210990U (en) * | 2016-11-16 | 2017-05-31 | 惠州市德赛电池有限公司 | A kind of battery of mobile phone protection board |
| CN107484394A (en) * | 2017-09-12 | 2017-12-15 | 广州市天歌音响设备有限公司 | A kind of power amplifier |
| CN208060644U (en) * | 2018-04-26 | 2018-11-06 | 艾乐德电子（南京）有限公司 | A kind of electronic load test device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830384A (en) * | 2019-04-12 | 2020-10-27 | 博计电子股份有限公司 | Low-pressure drop electronic load connecting device |
| CN111830384B (en) * | 2019-04-12 | 2023-02-28 | 博计电子股份有限公司 | Low-pressure drop electronic load connecting device |
| TWI818976B (en) * | 2019-04-12 | 2023-10-21 | 博計電子股份有限公司 | Low voltage drop electronic load connections |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108387803B (en) | 2024-08-27 |
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