CN202738375U - Electronic load machine - Google Patents
Electronic load machine Download PDFInfo
- Publication number
- CN202738375U CN202738375U CN 201220320901 CN201220320901U CN202738375U CN 202738375 U CN202738375 U CN 202738375U CN 201220320901 CN201220320901 CN 201220320901 CN 201220320901 U CN201220320901 U CN 201220320901U CN 202738375 U CN202738375 U CN 202738375U
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- CN
- China
- Prior art keywords
- load machine
- radome
- toroidal transformer
- electronic load
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an electronic load machine which comprises a ring transformer, and is characterized in that the ring transformer is provided with a shield cover. According to the utility model, as the shield cover capable of shielding interference is arranged on the ring transformer of the electronic load machine, so that a phenomenon that the ring transformer is subjected to electromagnetic wave interference of external components can be avoided, and a phenomenon that the electromagnetic waves emitted by the ring transformer affect the normal operation of other components of the electronic load machine can also be avoided, and thus the accuracy of the electronic load machine is improved.
Description
Technical field
The utility model relates to power supply and makes the field, in particular, relates to a kind of E-load machine.
Background technology
E-load machine is for various S.P.S.(change type power supply unit) the multifunction electronic load instrument of design, offer specially production division, testing department or developing department use.The load (electrical appliance) of E-load machine in can the Reality simulation environment detects the quality of power supply.Its function is quite a lot of, comprise can regulating load size, and short circuit, overcurrent, dynamic etc.The principle of electronic load is control internal power or transistorized conducting amount (amount duty ratio size), consume the equipment of electric energy by the dissipation power of power tube, it can accurately detect load voltage, the accurate adjustment load current, simultaneously can realize the fictitious load short circuit, fictitious load is the resistive and capacitive of perception, the capacitive load currents rise time.
If the impact that is subject to electromagnetic interference during the work of the toroidal transformer of E-load machine inside then can have influence on the accuracy of its work, simultaneously, also can the generate electromagnetic waves normal operation of other assembly of having influence on E-load machine inside of toroidal transformer when work itself, this all can have influence on the operating accuracy of E-load machine.
The utility model content
Technical problem to be solved in the utility model provides the high E-load machine of a kind of accuracy.
The purpose of this utility model is achieved through the following technical solutions: a kind of E-load machine, comprise toroidal transformer, and it is characterized in that, be provided with radome on the described toroidal transformer.
Preferably, the radome on the described toroidal transformer is the ring shielding cover that is shaped as loop configuration, comprises a circular lid and the annular wall that is connected with described circular lid.Use the radome of loop configuration, make the size of radome just can cover toroidal transformer and get final product, can avoid like this radome to take larger space.
Preferably, be provided with fixing hole on the circular lid of described ring shielding cover, described fixing hole is corresponding with screw hole on the described toroidal transformer, and described radome and described toroidal transformer are fixed on the cabinet of described E-load machine by a screw that passes described fixing hole and described screw hole.By fixing hole radome directly is fixed on the toroidal transformer, is fixed on the cabinet thereby need to other fixed structure be set at radome.
Preferably, be provided with the opening for track laying on the described radome, described opening is arranged on the annular wall of described radome.By in annular wall opening being set so that circuit can pass through, annular wall is different from the direction of large multicompartment, and then can not have influence on most of assembly from the electromagnetic interference that opening spills.
The utility model is owing to can shield the radome of battery interference toroidal transformer being provided with of E-load machine, thereby can avoid toroidal transformer to be subject to the electromagnetic interference of external module, the electromagnetic wave that also can avoid toroidal transformer to send has influence on the normal operation of other assembly of E-load machine, thereby improves the accuracy of E-load machine.
Description of drawings
Fig. 1 is the internal structure sketch of the E-load machine of the utility model embodiment,
Fig. 2 is the structure diagram of radome of toroidal transformer of the E-load machine of the utility model embodiment.
Wherein: 100, cabinet, 102, radome, 1021, circular lid, 1022, fixing hole,
1023, annular wall, 1024, opening.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
Be illustrated in figure 1 as E-load machine described in the utility model, it comprises: cabinet 100, the radome 102 that is fixed on the toroidal transformer on the cabinet 100 and is arranged on the toroidal transformer outside.By radome 102 electromagnetic wave shielding is fallen, to avoid the electromagnetic wave that other assembly was produced in the E-load machine to have influence on the normal operation of toroidal transformer, the electromagnetic wave that also can avoid simultaneously toroidal transformer to produce has influence on the normal operation of other assembly, thereby improves the accuracy of E-load machine.
As shown in Figure 2, radome 102 is loop configuration, and like this, and the size of radome 102 just can cover the toroidal transformer that is similarly loop configuration, can avoid like this radome 102 to take larger cabinet 100 interior spaces.The radome 102 of loop configuration comprises a circular lid 1021 and an annular wall 1023 that is connected with described circular lid 1021, the two cooperates the cylindrical structure that forms an end sealing, after this radome 102 is set on the toroidal transformer, the other end is sealed by cabinet, thereby form the inner space of a sealing, effectively stop electromagnetic interference.Be provided with fixing hole 1022 on the circular lid 1021, simultaneously, also be provided with screw hole on the toroidal transformer, radome 102 is fixed on the screw hole on the toroidal transformer by screw, simultaneously, toroidal transformer also is directly to be fixed on the cabinet 100 of E-load machine by described screw, that is to say, radome 102 is fixed on the cabinet 100 of described E-load machine by a screw that passes described fixing hole and described screw hole with described toroidal transformer.
Also be provided with on the annular wall 1023 of radome 102 be used to the opening 1024 that track laying is provided, the direction of opening 1024 is avoided towards other important assembly as far as possible, and then avoids electromagnetic-wave leakage to have influence on these important assemblies.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (4)
1. an E-load machine comprises toroidal transformer, it is characterized in that, is provided with radome on the described toroidal transformer.
2. a kind of E-load machine as claimed in claim 1 is characterized in that, the radome on the described toroidal transformer is the ring shielding cover that is shaped as loop configuration, comprises a circular lid and the annular wall that is connected with described circular lid.
3. a kind of E-load machine as claimed in claim 2, it is characterized in that, be provided with fixing hole on the circular lid of described ring shielding cover, described fixing hole is corresponding with screw hole on the described toroidal transformer, and described radome and described toroidal transformer are fixed on the cabinet of described E-load machine by a screw that passes described fixing hole and described screw hole.
4. a kind of E-load machine as claimed in claim 3 is characterized in that, is provided with the opening for track laying on the described radome, and described opening is arranged on the annular wall of described radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320901 CN202738375U (en) | 2012-07-04 | 2012-07-04 | Electronic load machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320901 CN202738375U (en) | 2012-07-04 | 2012-07-04 | Electronic load machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202738375U true CN202738375U (en) | 2013-02-13 |
Family
ID=47664021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320901 Expired - Fee Related CN202738375U (en) | 2012-07-04 | 2012-07-04 | Electronic load machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202738375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014005352A1 (en) * | 2012-07-04 | 2014-01-09 | Shang Yanyan | Electronic load machine |
-
2012
- 2012-07-04 CN CN 201220320901 patent/CN202738375U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014005352A1 (en) * | 2012-07-04 | 2014-01-09 | Shang Yanyan | Electronic load machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20140704 |
|
| EXPY | Termination of patent right or utility model |