CN102830367A - Electronic loading machine - Google Patents
Electronic loading machine Download PDFInfo
- Publication number
- CN102830367A CN102830367A CN2012102289962A CN201210228996A CN102830367A CN 102830367 A CN102830367 A CN 102830367A CN 2012102289962 A CN2012102289962 A CN 2012102289962A CN 201210228996 A CN201210228996 A CN 201210228996A CN 102830367 A CN102830367 A CN 102830367A
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- CN
- China
- Prior art keywords
- electronic load
- load machine
- radome
- stitch
- power input
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- 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.)
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- 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
- G01R31/40—Testing power supplies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses an electronic loading machine which comprises a chassis, and interference source components which are arranged on the chassis and have electromagnetic interference, and shielding hoods are arranged on one or more interference source components. The interference source components, such as a power main board and an AC (alternating current) adapter board, having electromagnetic interference on the electronic loading machine, are provided with the shielding hoods to shield electromagnetic waves and prevent the electromagnetic waves generated by the interference source components from leaking to affect normal operation of the other components; electromagnetic wave interference generated by an external component on normal operation of the components inside the shielding hoods can also be avoided, thereby improving the accuracy of the electronic loading machine.
Description
Technical field
The present invention relates to power supply and make the field, in particular, relate to a kind of electronic load machine.
Background technology
The electronic load machine is to the multifunction electronic load instrument of various S.P.S. (change type power supply unit) design, offers production division specially, and inspection department or developing department use.The load (electrical appliance) of electronic load machine in can simulation true environment detects the quality of power supply.Its function is quite a lot of, comprise can regulating load size, and short circuit, overcurrent, dynamic or the like.The principle of electronic load is control internal power or transistorized conducting amount (amount dutycycle size); Lean on the equipment of the dissipated power consumed power of power tube; It can accurately detect load voltage, accurately adjusts load current, can realize the fictitious load short circuit simultaneously; Fictitious load is the resistive and capacitive of perception, the capacitive load currents rise time.
The interference source assembly that electronic load machine set inside has multiple wiring board, various instruments etc. when energising is used, to have electromagnetic interference (EMI); Wiring board and instrument the time can produce various electromagnetic interference (EMI) phenomenons in work, and various instruments in the electromagnetic interference (EMI) causes electrons load machine and circuit operation are interfered and reduce the accuracy of electronic load machine.
Summary of the invention
Technical matters to be solved by this invention provides the high electronic load machine of a kind of accuracy.
The objective of the invention is to realize through following technical scheme: a kind of electronic load machine comprises: cabinet, be arranged on the interference source assembly on the cabinet with electromagnetic interference (EMI), and said one or more interference source assemblies are provided with radome.
Preferably, said interference source assembly includes the power supply mainboard, and said power supply mainboard is provided with radome.The power supply mainboard can produce electromagnetic interference (EMI), uses radome to shield, and to avoid having influence on the normal operation of other assembly, also can avoid the normal operation of other component influences to the power supply mainboard simultaneously, and then the accuracy of electronic load machine is provided.
Preferably, said radome is provided with the mounting structure on the cabinet that is used to be fixed to the electronic load machine.Through mounting structure radome is fixed on the cabinet, thereby can avoids radome directly to contact, have influence on the stability of power supply mainboard with the power supply mainboard.
Preferably, said radome is provided with the opening that is used for track laying.Through on radome, opening being set so that circuit can pass through.
Preferably, said interference source assembly includes front end display screen wiring board, also is provided with radome on the said front end display screen wiring board.The circuit of front end display screen is comparatively concentrated, also is the main generating assembly of electromagnetic interference (EMI).
Preferably, said interference source assembly includes the AC card extender, also is provided with radome on the said AC card extender.The AC card extender also is the primary clustering of electromagnetic interference (EMI), to the bigger assembly of these interference sources, radome is set to improve the accuracy of electronic load machine.
Said electronic load machine is provided with a standard configuration power input socket, also is provided with the power input socket of setting up with the different electric pressures of said standard configuration power input socket.Set up power input socket through setting,, satisfy the use needs in a plurality of areas to improve the versatility of electronic load machine.
Preferably, said electronic load machine is provided with one and sets up power input socket, and the said power input socket of setting up is provided with a plurality of stitch, and said a plurality of stitch make up each other and correspond to the input of multiple different voltages.Through setting up a plurality of increases are set on the power input socket, and correspond to different voltages with different, thereby avoid increasing a plurality of power input sockets of setting up, save production cost and optimal design because of demand through the combination use at one.
Preferably; The said power input socket of setting up is provided with four stitch; Comprise a neutral line stitch and three live wire stitch; Said neutral line stitch is connected with the neutral line, and said three live wire stitch are connected with 90V, 110V and 120V incoming line respectively, the shared neutral line of said incoming line.Satisfy several kinds of electric pressure demands commonly used.
The present invention is owing to interference source assembly with electromagnetic interference (EMI) such as power supply mainboard at the electronic load machine; On the assemblies such as AC card extender radome is set; Through radome electromagnetic wave shielding is fallen; Have influence on the normal operation of other assembly to avoid electromagnetic wave that these interference source assemblies are produced to reveal, also can avoid the normal operation of Electromagnetic Interference that external module the produces assembly in the radome, thereby improve the accuracy of electronic load machine.
Description of drawings
Fig. 1 is the inner structure sketch of the electronic load machine of the embodiment of the invention,
Fig. 2 is the power supply mainboard shielding case structure sketch of the electronic load machine of the embodiment of the invention,
Fig. 3 is the structure diagram of rear panel of the electronic load machine of the embodiment of the invention,
Fig. 4 is the power supply input circuit wiring sketch of the electronic load machine of the embodiment of the invention.
Wherein: 101, AC card extender radome, 102, the ring shielding cover, 103, power supply mainboard radome; 104, display screen wiring board radome, 1031, mounting structure, 1032, opening; 10, standard configuration voltage input socket, 11, SS, 20, the S.P.S. socket; 30, set up supply socket, 40, the transposing switch, 50, fuse.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the present invention is described further.
Be illustrated in figure 1 as electronic load machine of the present invention, it comprises: the power supply mainboard and on AC card extender radome 101, toroidal transformer and on ring shielding cover 102, AC card extender and on power supply mainboard radome 101 and display screen wiring board and on display screen wiring board radome 104.Through radome electromagnetic wave shielding is fallen, have influence on the normal operation of other assembly to avoid electromagnetic wave that these interference source assemblies are produced to reveal, thereby improve the accuracy of electronic load machine.
Present embodiment is an example with the radome of power supply mainboard; As shown in Figure 2, the power supply mainboard is mainly the rectangle circuit board, and it is provided with multiple circuit and components and parts; Produce bigger electromagnetic interference (EMI) behind the turning circuit; On the power supply mainboard, be provided with the power supply mainboard radome 103 of a rectangular shape, the size of power supply mainboard radome 103 is bigger slightly than the size of power supply mainboard, just covers the power supply mainboard; The inner degree of depth of power supply mainboard radome 103 can hold the power supply mainboard and on components and parts, the normal operation of avoiding power supply mainboard radome 103 and components and parts on the power supply mainboard directly to contact or compress and have influence on components and parts perhaps destroys these components and parts; Power supply mainboard radome 103 is provided with the mounting structure 1031 that is used to be fixed on the cabinet 100, and mounting structure 1031 is provided with screw hole, and power supply mainboard radome 1031 passes through screw retention to cabinet 100.
Also be provided with the opening 1032 that is used to provide track laying on the power supply mainboard radome 103, the direction of opening 1032 is avoided towards other important assembly as far as possible, and then avoids electromagnetic-wave leakage to have influence on these important assemblies.
The rear panel of electronic load machine as shown in Figure 2 is provided with: standard configuration power input plug 10, S.P.S input plug 20, the fuse 50 of setting up power input plug 30, being used to select standard configuration power input plug 10 and the power supply of setting up power input plug 30 to select transposing switch 40 and be used to guarantee line security.Wherein, standard configuration voltage input plug 10 is used to dispose the input of 115V normal voltage and 230V reference power supply, is used to dispose 90V, 110V and 120 or the input of more power supply and set up power input plug 30; In addition, the electronic load machine also is provided with the line select switch 11 that is used for standard configuration power input plug 10 is connected to 115V or 230V circuit.
Shown in figure; Among the present invention, the electronic load machine is provided with one and sets up power input socket 30, and the said power input socket 30 of setting up is provided with four stitch; As shown in Figure 2; Comprise a neutral line stitch COM and three live wire stitch IN-1, IN-2 and IN-3 in four stitch, the center line stitch is connected with the neutral line, and the live wire stitch is connected with 90V, 110V and 120V circuit respectively; The shared neutral line of the incoming line of three different electric pressures, and then make this set up the power supply input that power input socket 30 can provide three kinds of different voltages.Set up power input socket 30 and standard configuration power input socket 10 and select through the transposing switch respectively, shown in figure, select needed input socket through transposing switch 40 (Source Select).
As shown in Figure 1; To 90V circuit, 110V circuit, 120V circuit, 115V and the 230V and the neutral line; Be provided with corresponding fuse 50 respectively; In the present embodiment totally 5 fuses be respectively: AC-1, AC-2, AC-3, AC-N and line (circuit), wherein line is the fuse of 115V or 230V circuit.Through the protection of fuse 50, thereby guarantee the security of each bar circuit, also guarantee the safety of electronic load machine simultaneously.
In the present embodiment, four stitch are by square arrangement, so that the making of plug, the while conserve space, plug also can be made as required accordingly.As shown in Figure 2, in 90V, 110V and 120V circuit, also be respectively arranged with switch, be used to control the input of different voltages.
Certainly; Setting up the stitch quantity of power input socket 30 can decide as required, and according to the grade of required input voltage, the stitch that respective numbers can be set is to satisfy the demands; Through making stitch have different functions to stitch definition and line; Make up the input interface that satisfies multiple voltage then accordingly, in circuit, carry out corresponding circuit simultaneously and connect setting, just can satisfy different power supply input requirements.
In addition, the present invention also can satisfy 90V, 110 and the power supply input requirement of 120V respectively through increasing by three common power input sockets of setting up, and is perhaps more.But inferior method will be added several plugs on cost, in design, also takies than large space, and the connection of circuit also comparatively bothers.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (9)
1. electronic load machine comprises: cabinet, be arranged on the interference source assembly on the cabinet with electromagnetic interference (EMI), and it is characterized in that said one or more interference source assemblies are provided with radome.
2. a kind of electronic load machine as claimed in claim 1 is characterized in that said interference source assembly includes the power supply mainboard, and said power supply mainboard is provided with radome.
3. a kind of electronic load machine as claimed in claim 2 is characterized in that, said radome is provided with the mounting structure on the cabinet that is used to be fixed to the electronic load machine.
4. a kind of electronic load machine as claimed in claim 2 is characterized in that said radome is provided with the opening that is used to spread the line circuit.
5. a kind of electronic load machine as claimed in claim 1 is characterized in that said interference source assembly includes front end display screen wiring board, also is provided with radome on the said front end display screen wiring board.
6. a kind of electronic load machine as claimed in claim 1 is characterized in that said interference source assembly includes the AC card extender, also is provided with radome on the said AC card extender.
7. a kind of electronic load machine as claimed in claim 1 is characterized in that said electronic load machine is provided with a standard configuration power input socket, also is provided with the power input socket of setting up with the different electric pressures of said standard configuration power input socket.
8. a kind of electronic load machine as claimed in claim 1; It is characterized in that; Said electronic load machine is provided with one and sets up power input socket, and the said power input socket of setting up is provided with a plurality of stitch, and said a plurality of stitch make up each other and correspond to the input of multiple different voltages.
9. a kind of electronic load machine as claimed in claim 8; It is characterized in that; The said power input socket of setting up is provided with four stitch, comprises a neutral line stitch and three live wire stitch, and said neutral line stitch is connected with the neutral line; Said three live wire stitch are connected with 90V, 110V and 120V incoming line respectively, the shared neutral line of said incoming line.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102289962A CN102830367A (en) | 2012-07-04 | 2012-07-04 | Electronic loading machine |
| PCT/CN2012/078680 WO2014005352A1 (en) | 2012-07-04 | 2012-07-16 | Electronic load machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102289962A CN102830367A (en) | 2012-07-04 | 2012-07-04 | Electronic loading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102830367A true CN102830367A (en) | 2012-12-19 |
Family
ID=47333569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102289962A Pending CN102830367A (en) | 2012-07-04 | 2012-07-04 | Electronic loading machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102830367A (en) |
| WO (1) | WO2014005352A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166118A1 (en) * | 2017-03-16 | 2018-09-20 | 上海蔚来汽车有限公司 | Electromagnetic compatibility testing device and testing system comprising same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986852A (en) * | 2021-05-12 | 2021-06-18 | 广州朗国电子科技有限公司 | All-in-one machine power failure detection circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004325420A (en) * | 2003-04-30 | 2004-11-18 | Keisoku Giken Co Ltd | Alternating current electronic loading device |
| CN201682536U (en) * | 2010-05-07 | 2010-12-22 | 梅州众成实业有限公司 | Comprehensive testing instrument structure of universal terminal |
| CN102004536A (en) * | 2010-09-16 | 2011-04-06 | 孔繁忠 | Mute power supply |
| CN202661614U (en) * | 2012-07-04 | 2013-01-09 | 尚艳燕 | Electronic load machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200965548Y (en) * | 2006-07-07 | 2007-10-24 | 比亚迪股份有限公司 | Electronic load measurement meter |
| CN202738375U (en) * | 2012-07-04 | 2013-02-13 | 王广祥 | Electronic load machine |
-
2012
- 2012-07-04 CN CN2012102289962A patent/CN102830367A/en active Pending
- 2012-07-16 WO PCT/CN2012/078680 patent/WO2014005352A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004325420A (en) * | 2003-04-30 | 2004-11-18 | Keisoku Giken Co Ltd | Alternating current electronic loading device |
| CN201682536U (en) * | 2010-05-07 | 2010-12-22 | 梅州众成实业有限公司 | Comprehensive testing instrument structure of universal terminal |
| CN102004536A (en) * | 2010-09-16 | 2011-04-06 | 孔繁忠 | Mute power supply |
| CN202661614U (en) * | 2012-07-04 | 2013-01-09 | 尚艳燕 | Electronic load machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166118A1 (en) * | 2017-03-16 | 2018-09-20 | 上海蔚来汽车有限公司 | Electromagnetic compatibility testing device and testing system comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014005352A1 (en) | 2014-01-09 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |